CN112656492A - Head ring vest - Google Patents

Abstract

The invention discloses a head ring vest, which has the technical scheme that the head ring vest comprises a head ring part, an adjustable bracket, a brace vest, a skull nail component and a connecting slide block, wherein the brace vest comprises a front piece and a rear piece, the adjustable support is including adjusting the seat, the support frame, the link, the support frame is including preceding bracing piece, back bracing piece, be provided with limited revolution structure between preceding bracing piece and the anter and between back bracing piece and the back part, the link is including horizontal connecting rod, indulge the connecting rod, horizontal connecting rod both ends are provided with the connecting seat, be provided with limited slip structure between connecting seat and the support frame and between adjusting the seat and indulging the connecting rod, it sets up limited revolution structure to indulge between connecting rod and the horizontal connecting rod and between adjusting the seat and the head ring part, skull nail subassembly is including the fixing base, the lock is fixed the nail, adjusting bolt, be provided with limited slip structure between link block and the head ring part, set up limited revolution structure between link block and the. The head ring vest can overcome the defect of poor stability of the existing head ring.

Description

Head ring vest

Technical Field

The invention relates to the field of medical device machinery, in particular to a head ring vest.

Background

Clinical practice proves that the correct selection and application of Halo-Vest to the upper cervical vertebra injury can reduce the risk of open surgery, save medical cost, shorten the time for lying in bed, reduce the complications of lying in bed and promote early rehabilitation of the cervical vertebra injury. At present, Halo-Vest is a safe and effective method for treating upper cervical vertebra injuries under the condition of uneven medical conditions in China, and is suitable for popularization and use in vast primary hospitals.

The top of the skull nail used at present is round head or small tip, the base part of the skull nail is provided with a round table, the stability of the skull nail is poor, pressure needs to be increased for preventing a head ring from loosening, the skull pressure of a patient is increased, and the skull is fractured when the pressure is too large. The latter has the same problem of instability due to too short tip, the head ring is easy to loosen, the round platform is pressed on the skin to cause skin necrosis, obvious pain can be caused within a plurality of days after fixation, for the situation, some doctors cut the skin at the nail inserting position with a knife to cause complicated operation, the scar is larger later, skull bone absorption and nail tip loosening are realized after the skull bone nail is fixed for a period of time, the round platform is contacted with the bone surface when the skull nail is screwed inwards, the nail tip cannot enter deep bone, and the head ring is difficult to be stabilized again.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a head ring vest which can overcome the defect of poor stability of the existing head ring.

In order to achieve the purpose, the invention provides the following technical scheme: a head ring vest comprises a head ring component for being sleeved on the head of a human body, two sides of the head ring component are respectively connected with an adjustable support for adjusting a traction angle, the end parts of the two adjustable supports far away from the head ring component are connected to a support vest, the support vest comprises a front piece and a rear piece which are oppositely arranged and are used for being worn on the front chest and the rear back of the human body and playing a supporting role, each adjustable support comprises an adjusting seat connected with the head ring component, a support frame connected with the support vest and a connecting frame connected between the adjusting seat and the support frame, each support frame comprises a front support rod rotationally connected with the front piece and a rear support rod rotationally connected with the rear piece, a rotation limiting structure for limiting the rotation of the front support rod is arranged between the front support rod and the front piece, and a rotation limiting structure for limiting the rotation of the rear support rod is also arranged between the rear support rod and the rear piece, the connecting frame comprises a transverse connecting rod connected between the front supporting rod and the rear supporting rod and a longitudinal connecting rod connected between the middle part of the transverse connecting rod and the adjusting seat, the two ends of the transverse connecting rod are connected with a connecting seat connected with the supporting frame in a sliding manner, a sliding limiting structure capable of limiting the sliding of the connecting seat is arranged at the butt joint part of the connecting seat and the supporting frame, one end of the longitudinal connecting rod is connected with the middle part of the transverse connecting rod in a rotating manner, the rotating axial direction of the longitudinal connecting rod on the transverse connecting rod is perpendicular to the length direction of the longitudinal connecting rod and the transverse connecting rod, a rotation limiting structure capable of limiting the rotation of the longitudinal connecting rod is arranged at the butt joint part of the longitudinal connecting rod and the transverse connecting rod, one end of the adjusting seat is connected with the head ring component in a rotating manner, the other end of the adjusting, the abutting part of the adjusting seat and the longitudinal connecting rod is provided with a slip limiting structure capable of limiting the sliding of the adjusting seat;

the skull nail component is used for abutting against the head of a human body and comprises a fixed seat, a locking nail and an adjusting bolt, wherein the fixed seat is connected onto the skull nail component in a sliding and rotating mode, the locking nail is connected onto the fixed seat in a sliding mode, the adjusting bolt is in threaded connection with the fixed seat in a threaded mode, the top end of the adjusting bolt abuts against the tail end of the locking nail and can push the locking nail to slide in the rotating process of the adjusting bolt, the locking nail slides axially and is connected with the fixed seat in a circumferential rotation limiting mode, a connecting slide block is connected onto the skull ring component in a sliding mode and is connected with the fixed seat in a rotating mode, a sliding limiting structure capable of limiting the sliding of the connecting slide block is arranged at the abutting position of the connecting slide block and the fixed seat, and a rotation limiting structure capable of limiting the rotation of.

The invention is further configured to: the sliding limiting structure comprises strip-shaped ratchets arranged on the abutting surfaces, and a sliding limiting bolt and a sliding limiting nut which are in threaded connection, the strip-shaped ratchets are arranged on the abutting surfaces of the connecting seat and the supporting frame along the sliding direction of the connecting seat on the supporting frame, a perforated structure for a screw part of the sliding limiting bolt to pass through is arranged on the connecting seat, a sliding chute structure for the screw part of the sliding limiting bolt to pass through and slide is arranged on the front supporting rod and the rear supporting rod, and the screw part of the sliding limiting bolt is in threaded connection with the sliding limiting nut after passing through the connecting seat and the supporting frame until the strip-shaped ratchets between the connecting seat and the supporting frame are mutually meshed to play a role in limiting the sliding;

the bar-shaped ratchets are arranged on the abutting surfaces of the adjusting seat and the longitudinal connecting rod along the sliding direction of the adjusting seat on the longitudinal connecting rod, a perforated structure for a screw part of the slide-limiting bolt to pass through is arranged on the adjusting seat, a sliding chute structure for the screw part of the slide-limiting bolt to pass through and slide is arranged on the longitudinal connecting rod, and the screw part of the slide-limiting bolt passes through the adjusting seat and the longitudinal connecting rod and then is in threaded connection with the slide-limiting nut until the bar-shaped ratchets between the adjusting seat and the longitudinal connecting rod are mutually engaged to play a role of limiting the sliding of the adjusting seat when the adjusting seat and;

the connecting slide block is provided with a through hole structure for a screw rod part of a limited slip bolt to pass through, the head ring part is provided with a sliding groove structure for the screw rod part of the limited slip bolt to pass through and slide, and the screw rod part of the limited slip bolt passes through the connecting slide block and the head ring part and then is in threaded connection with a limited slip nut until the connecting slide block and the head ring part are mutually abutted, the strip-shaped ratchets between the connecting slide block and the head ring part are mutually meshed to play a role in limiting the sliding of the connecting slide block.

The invention is further configured to: the both ends of horizontal connecting rod all are provided with the regulation spout that supplies the screw rod part of limit slip bolt to pass and slide, the screw rod part of limit slip bolt pass support frame and connecting seat and horizontal connecting rod after with the spiro union of limit slip nut to limit slip bolt and limit slip nut spiro union in-process can realize fixed with the synchronous centre gripping of horizontal connecting rod when fixing the connecting seat on the support frame.

The invention is further configured to: the rotation limiting structure comprises annular ratchets arranged on the abutting surfaces, and rotation limiting bolts and rotation limiting nuts in threaded connection, the annular ratchets are arranged on the abutting surfaces of the front support rod and the front piece along the rotating direction of the end part of the front support rod on the front piece, the end parts of the front piece and the front support rod are respectively provided with a perforation structure for a screw rod part of the rotation limiting bolt to pass through, and the screw rod part of the rotation limiting bolt passes through the front support rod and the front piece and is in threaded connection with the rotation limiting nuts until the annular ratchets between the front support rod and the front piece are mutually meshed to play a role in limiting the rotation of the front support rod when the front support rod and;

the annular ratchets are arranged on the abutting surfaces of the rear supporting rod and the rear piece along the rotating direction of the end part of the rear supporting rod on the rear piece, the end parts of the rear piece and the rear supporting rod are respectively provided with a perforation structure for a screw part of a rotation limiting bolt to pass through, the screw part of the rotation limiting bolt passes through the rear supporting rod and the rear piece and is in threaded connection with a rotation limiting nut until the annular ratchets between the rear supporting rod and the rear piece are mutually meshed to play a role in limiting the rotation of the rear supporting rod when the rear supporting rod and the rear piece are mutually abutted;

the annular ratchets are arranged on the abutting surfaces of the longitudinal connecting rods and the transverse connecting rods along the rotating direction of the end parts of the longitudinal connecting rods on the transverse connecting rods, the end parts of the transverse connecting rods and the longitudinal connecting rods are respectively provided with a perforated structure for a screw part of a rotation limiting bolt to pass through, the screw part of the rotation limiting bolt passes through the longitudinal connecting rods and the transverse connecting rods and is in threaded connection with a rotation limiting nut until the longitudinal connecting rods and the transverse connecting rods are mutually abutted, and the annular ratchets between the longitudinal connecting rods and the transverse connecting rods are mutually meshed to play a role in limiting;

the annular ratchets are arranged on the abutting surfaces of the adjusting seat and the head ring component along the rotating direction of the adjusting seat on the head ring component, the adjusting seat and the head ring component are both provided with a perforated structure for the screw part of the rotation limiting bolt to pass through, the screw part of the rotation limiting bolt passes through the adjusting seat and the head ring component and is in threaded connection with the rotation limiting nut until the annular ratchets between the adjusting seat and the head ring component are mutually meshed to play a role of limiting the rotation of the head ring component when the adjusting seat and the head ring component are mutually abutted;

the annular ratchets are arranged on the abutting surfaces of the connecting sliding block and the fixing seat along the rotating direction of the connecting sliding block on the fixing seat, the connecting sliding block and the fixing seat are respectively provided with a perforation structure for the screw part of the rotation limiting bolt to pass through, and the screw part of the rotation limiting bolt passes through the connecting sliding block and the fixing seat and is in threaded connection with the rotation limiting nut until the connecting sliding block and the fixing seat are mutually abutted, the annular ratchets between the connecting sliding block and the fixing seat are mutually meshed to play a role in limiting the rotation of the fixing.

The invention is further configured to: the middle part of horizontal connecting rod becomes round bar-shaped structure and sets up to rotate and be connected with and be used for and indulge the connecting rod and rotate the grip ring of being connected, the grip ring becomes C font structure and sets up, and the opening part of grip ring outwards extends and is provided with two centre gripping arms, is provided with the perforation structure that supplies the screw rod part of rotation-limiting bolt to pass on two centre gripping arms, and the screw rod part of rotation-limiting bolt passes in proper order behind indulging connecting rod and two centre gripping arms with the rotation-limiting nut spiro union, indulge and be provided with annular ratchet on the butt face of connecting rod and centre gripping arm, it is fixed with the synchronous centre gripping that the connecting rod can realize grip ring and horizontal connecting rod when the rotation on the grip ring.

The invention is further configured to: the connecting device is characterized in that a perforated structure for allowing the limited slip bolt to pass through on the connecting sliding block and a perforated structure for allowing the limited rotation bolt to pass through on the connecting sliding block are arranged in a superposition mode, an elastic pre-pressing structure capable of driving the connecting sliding block and the fixing base and the connecting sliding block and the head ring part to be elastically pre-pressed is further arranged on the head ring part, the elastic pre-pressing structure comprises a pre-pressing spring and/or an annular ratchet and a strip-shaped ratchet which are sleeved on the bolt and is arranged in an elastic tooth structure, and the elastic teeth are arranged in a sheet structure with the.

The invention is further configured to: the head ring component is arranged in a C-shaped structure formed by bending a rod material, the opening of the head ring component faces the hindbrain of the head of a human body, the cross section of the head ring component in the length direction is arranged in an I-shaped structure, the middle parts of the two sides of the head ring component are respectively provided with a groove structure for embedding a connecting slide block and a nut part of a limited slip bolt, and the thickness dimension of the connecting slide block is larger than the depth dimension of the groove structure in the middle of the head ring component.

The invention is further configured to: the locking nail comprises a supporting tube arranged in a tubular structure, two sealing covers for sealing openings at two ends of the supporting tube, and filler filled in a containing cavity formed by the supporting tube and the sealing covers in a surrounding mode, wherein the sealing covers are made of deformable materials, and the filler is made of elastic materials.

The invention is further configured to: the supporting tube and the sealing cover are integrally formed, the wall thickness of the supporting tube is larger than that of the sealing cover, the sealing cover integrally formed with the supporting tube is arranged towards the head of a human body, a protruding edge is arranged on the other sealing cover in a protruding mode, a directional sliding groove for the protruding edge to be embedded is formed in the fixing base, and the sliding direction of the protruding edge in the directional sliding groove is consistent with the sliding direction of the locking nail on the fixing base.

The invention is further configured to: the fixing base is at least provided with two operation faces for the locking nail and the adjusting bolt to be connected, each operation face is provided with a threaded hole for the adjusting bolt to be screwed and a sliding hole for the locking nail to slide axially, the threaded hole and the sliding hole are coaxially arranged, the inner diameter of the threaded hole is not smaller than that of the sliding hole, the inner diameter of the sliding hole is matched with the outer diameter of the locking nail, and the directional sliding groove is arranged on the inner side wall of the threaded hole.

In conclusion, the invention has the following beneficial effects: wherein preceding bracing piece and anter can realize rotating the regulation, back bracing piece can realize rotating the regulation with the back part, the cross bar both ends can realize sliding the rotation regulation with preceding bracing piece and back bracing piece respectively, indulge the connecting rod and can realize rotating the regulation with the cross bar, indulge the connecting rod and can realize sliding the regulation with the regulation seat, it can realize rotating the regulation to adjust seat and head ring part, can carry out multi-angle nimble regulation to head ring part, the use flexibility and the application scope of head ring undershirt have been improved greatly. And the skull nail subassembly wherein can realize the axial of locking nail and slide under adjusting bolt's drive, can make the locking nail keep supporting perpendicularly and press on the head when the skull nail subassembly is installed, can effectively avoid the locking nail to produce in the installation or after the installation and rotate or even swing adverse factor and influence the installation effect, improved the firm degree of installation of skull nail subassembly greatly to effectively reduced the operation degree of difficulty, reduced patient's misery, improved the operation effect.

In addition, the connection sliding block and the fixing seat can realize rotation adjustment, the connection sliding block and the head ring component can realize sliding adjustment, so that the skull nail component can slide on the head ring component and can rotate to adjust, the use flexibility and the application range of the head ring vest are greatly improved, the butt joint position of the skull nail component can be flexibly adjusted and controlled by adjusting and controlling the fixing seat after the head ring component is adjusted in place by the adjustable support, the use flexibility and the application range of the skull nail component are greatly improved, and the operation efficiency is effectively improved.

Drawings

FIG. 1 is a schematic view of the structure of a head hoop vest;

FIG. 2 is a schematic structural view of a cranial nail assembly;

FIG. 3 is a side view of the bar ratchet;

FIG. 4 is a front view of the bar ratchet;

fig. 5 is a structural schematic view of the ring ratchet.

Reference numerals: 1. a head ring member; 11. a skull nail assembly; 111. a fixed seat; 1111. working surface; 1112. a threaded hole; 1113. a sliding hole; 1114. a directional chute; 112. locking the nail; 1121. supporting a tube; 1122. sealing the cover; 11221. convex edges; 1123. a filler; 113. adjusting the bolt; 12. connecting the sliding block; 13. pre-pressing a spring; 2. an adjustable support; 21. an adjusting seat; 22. a support frame; 23. a connecting frame; 231. a transverse connecting rod; 232. a longitudinal connecting rod; 233. a connecting seat; 234. a clamp ring; 2341. a clamp arm; 3. a brace vest; 4. a rotation limiting structure; 41. a ring-shaped ratchet; 5. a limited slip arrangement; 51. a strip-shaped ratchet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1-5, a head ring vest comprises a head ring component 1 for being sleeved on the head of a human body, two sides of the head ring component 1 are respectively connected with an adjustable support 2 for adjusting a traction angle, the end parts of the two adjustable supports 2 far away from the head ring component 1 are connected to a brace vest 3, the brace vest 3 comprises a front piece and a rear piece which are oppositely arranged and are used for being worn on the front chest and the back of the human body and playing a supporting role, and the head ring component 1 can be adjusted in place through the adjustable supports 2 after the brace vest 3 is worn.

The adjustable support 2 comprises an adjusting seat 21 connected with the head ring component 1, a support frame 22 connected with the support vest 3 and a connecting frame 23 connected between the adjusting seat 21 and the support frame 22, the support frame 22 comprises a front support rod rotationally connected with the front piece and a rear support rod rotationally connected with the rear piece, a rotation limiting structure 4 used for limiting the rotation of the front support rod is arranged between the front support rod and the front piece, the rotation limiting structure 4 can be locked with the front piece after the front support rod is adjusted in place, a rotation limiting structure 4 used for limiting the rotation of the rear support rod is also arranged between the rear support rod and the rear piece, and the rotation limiting structure 4 can be locked with the rear piece after the rear support rod is adjusted in place;

the connecting frame 23 comprises a horizontal connecting rod 231 connected between the front supporting rod and the rear supporting rod and a vertical connecting rod 232 connected between the middle part of the horizontal connecting rod 231 and the adjusting seat 21, two ends of the horizontal connecting rod 231 are connected with a connecting seat 233 connected with the supporting frame 22 in a sliding and rotating way, a sliding limiting structure 5 capable of limiting the sliding of the connecting seat 233 is arranged at the abutting part of the connecting seat 233 and the supporting frame 22, the limited slip structure 5 can be locked after the two ends of the transverse connecting rod 231 are respectively adjusted in place with the front supporting rod and the rear supporting rod, one end of the longitudinal connecting rod 232 is rotatably connected to the middle part of the transverse connecting rod 231, the rotating axial direction of the longitudinal connecting rod 232 on the transverse connecting rod 231 is vertical to the length directions of the longitudinal connecting rod 232 and the transverse connecting rod 231, a rotation limiting structure 4 capable of limiting the rotation of the longitudinal connecting rod 232 is arranged at the abutting part of the longitudinal connecting rod 232 and the transverse connecting rod 231, the rotation limiting structure 4 can be locked with the transverse connecting rod 231 after the longitudinal connecting rod 232 is adjusted in place;

one end of the adjusting seat 21 is rotatably connected with the head ring component 1, the other end of the adjusting seat is connected with the longitudinal connecting rod 232 in a sliding manner, a rotation limiting structure 4 capable of limiting the rotation of the head ring component 1 is arranged at the joint of the adjusting seat 21 and the head ring component 1, the rotation limiting structure 4 can be locked with the head ring component 1 after the adjusting seat 21 is adjusted in place, a sliding limiting structure 5 capable of limiting the sliding of the adjusting seat 21 is arranged at the joint of the adjusting seat 21 and the longitudinal connecting rod 232, and the sliding limiting structure 5 can be locked with the longitudinal connecting rod 232 after the adjusting seat 21 is adjusted in place;

the skull nail component 11 is arranged on the head ring component 1 and is used for abutting against the head of a human body, the skull nail component 11 comprises a fixed seat 111 which is connected on the head ring component 1 in a sliding and rotating mode, a locking nail 112 which is connected on the fixed seat 111 in a sliding and rotating mode, and an adjusting bolt 113 which is in threaded connection with the fixed seat 111, the top end of the adjusting bolt 113 abuts against the tail end of the locking nail 112 and can push the locking nail 112 to slide in the rotating process of the adjusting bolt 113, the locking nail 112 and the fixed seat 111 are arranged in an axial sliding and circumferential rotation limiting connection mode, the head ring component 1 is connected with a connecting slide block 12 which is in sliding connection with the fixed seat 111, a sliding limiting structure 5 which can limit the connecting slide block 12 to slide is arranged at the abutting position of the connecting slide block 12 and the head ring component 1, the sliding limiting structure 5 can be locked with the head ring component 1 after the connecting slide block 12 is adjusted to the position, a rotation limiting structure 4 which can, the rotation limiting structure 4 can be locked with the fixing seat 111 after the connecting slide block 12 is adjusted in place.

Wherein rotation regulation can be realized with the anter to preceding bracing piece, rotation regulation can be realized with the back branch piece to back bracing piece, the rotation regulation can be realized sliding with preceding bracing piece and back bracing piece respectively in the cross connecting rod 231 both ends, indulge connecting rod 232 and cross connecting rod 231 and can realize rotating the regulation, indulge connecting rod 232 and adjust seat 21 and can realize sliding the regulation, it can realize rotating the regulation to adjust seat 21 and head ring part 1, can carry out multi-angle nimble regulation to head ring part 1, the use nimble degree and the application scope of head ring undershirt have been improved greatly. And the skull nail component 11 can realize the axial sliding of the locking nail 112 under the drive of the adjusting bolt 113, the locking nail 112 can be kept vertically pressed on the head when the skull nail component 11 is installed, the adverse factors of rotation, even swinging and the like generated in the installation process or after the installation of the locking nail 112 can be effectively avoided to influence the installation effect, the installation stability of the skull nail component 11 is greatly improved, thereby effectively reducing the operation difficulty, reducing the pain of patients and improving the operation effect.

In addition, the connection sliding block 12 and the fixing seat 111 can realize rotation adjustment, the connection sliding block 12 and the head ring component 1 can realize sliding adjustment, so that the skull nail component 11 can slide and rotate on the head ring component 1, the use flexibility and the application range of the head ring vest are greatly improved, the abutting position of the skull nail component 11 can be flexibly adjusted and controlled by adjusting and controlling the fixing seat 111 after the head ring component 1 is adjusted in place by the adjustable support 2, the use flexibility and the application range of the skull nail component 11 are greatly improved, and the operation efficiency is effectively improved.

The slide limiting structure 5 comprises strip-shaped ratchets 51 arranged on the abutting surfaces, and a slide limiting bolt and a slide limiting nut which are in threaded connection, the strip-shaped ratchets 51 are arranged on the abutting surfaces of the connecting seat 233 and the supporting frame 22 along the sliding direction of the connecting seat 233 on the supporting frame 22, a perforated structure for a screw part of the slide limiting bolt to pass through is arranged on the connecting seat 233, a sliding groove structure for the screw part of the slide limiting bolt to pass through and slide is arranged on the front supporting rod and the rear supporting rod, and the screw part of the slide limiting bolt passes through the connecting seat 233 and the supporting frame 22 and then is in threaded connection with the slide limiting nut until the strip-shaped ratchets 51 between the connecting seat 233 and the supporting frame 22 are mutually meshed to play a; this limited slip structure 5 can make connecting seat 233 and preceding bracing piece and connecting seat 233 and the bar ratchet 51 meshing of back bracing piece after limited slip bolt and limited slip nut screw to effectively avoid connecting seat 233 to produce in the use and slide on preceding bracing piece and back bracing piece, can effectively improve the firm degree of being connected of horizontal connecting rod 231 and support frame 22, and then be favorable to improving the use stability degree and the safety in utilization of head ring undershirt.

The strip-shaped ratchets 51 are arranged on the abutting surfaces of the adjusting seat 21 and the longitudinal connecting rod 232 along the sliding direction of the adjusting seat 21 on the longitudinal connecting rod 232, a perforated structure for a screw part of a slide-limiting bolt to pass through is arranged on the adjusting seat 21, a sliding groove structure for the screw part of the slide-limiting bolt to pass through and slide is arranged on the longitudinal connecting rod 232, and the screw part of the slide-limiting bolt passes through the adjusting seat 21 and the longitudinal connecting rod 232 and then is in threaded connection with a slide-limiting nut until the strip-shaped ratchets 51 between the adjusting seat 21 and the longitudinal connecting rod 232 are mutually meshed to play a role in limiting the sliding of the adjusting seat 21; this limit slip structure 5 can make the bar ratchet 51 meshing of adjusting seat 21 and vertical connecting rod 232 after limit slip bolt and limit slip nut are screwed to effectively avoid adjusting seat 21 and producing in the use and sliding on vertical connecting rod 232, can effectively improve the firm degree of being connected of adjusting seat 21 and vertical connecting rod 232, and then be favorable to improving the stability in use degree and the safety in utilization of head ring undershirt.

The strip-shaped ratchets 51 are arranged on the abutting surfaces of the connecting slide block 12 and the head ring component 1 along the sliding direction of the connecting slide block 12 on the head ring component 1, a perforation structure for the screw part of the slide-limiting bolt to pass through is arranged on the connecting slide block 12, a sliding groove structure for the screw part of the slide-limiting bolt to pass through and slide is arranged on the head ring component 1, and the screw part of the slide-limiting bolt passes through the connecting slide block 12 and the head ring component 1 and then is in threaded connection with the slide-limiting nut until the strip-shaped ratchets 51 between the connecting slide block 12 and the head ring component 1 are mutually engaged to play a role of limiting the sliding of the connecting slide block 12. This limit slip structure 5 can make link block 12 and head ring part 1's bar ratchet 51 mesh after limit slip bolt and limit slip nut are screwed to effectively avoid link block 12 to produce in the use and slide on head ring part 1, can effectively improve link block 12 and head ring part 1's the firm degree of being connected, and then be favorable to improving the stability in use degree and the safety in utilization of head ring undershirt.

The slip limiting structure 5 is ingenious in design, simple in structure and easy to implement, can conveniently achieve slip connection and locking connection between two parts, and greatly improves the use flexibility and the use safety of the head ring vest.

The both ends of horizontal connecting rod 231 all are provided with the regulation spout that supplies the screw rod part of limit slip bolt to pass and slide, and the screw rod part of limit slip bolt passes behind support frame 22 and connecting seat 233 and horizontal connecting rod 231 and with the bolt joint of limit slip nut to limit slip bolt and limit slip nut spiro union in-process can realize fixed with the synchronous centre gripping of horizontal connecting rod 231 when fixing connecting seat 233 on support frame 22. And the preferred screw rod part external diameter size looks adaptation with the limited slip bolt of width size of adjusting the spout, be favorable to further improving the firm degree of being connected of horizontal connecting rod 231 and support frame 22, when needing to regulate and control the position of horizontal connecting rod 231 on support frame 22, not only can realize horizontal connecting rod 231 and slide adjustment position respectively on preceding bracing piece and back bracing piece after unscrewing limited slip bolt and limited slip nut, can also regulate and control the horizontal connecting rod 231 respectively in the front bracing piece and the connection contained angle on the back bracing piece simultaneously, the regulation and control flexibility degree and the convenient degree of support frame 22 with link 23 have been improved greatly, otherwise, just can restrict the slip and the rotation of horizontal connecting rod 231 on support frame 22 after screwing limited slip bolt and limited slip nut, be favorable to improving operation efficiency.

The rotation limiting structure 4 comprises annular ratchets 41 arranged on the abutting surfaces and rotation limiting bolts and rotation limiting nuts in threaded connection, the annular ratchets 41 are arranged on the abutting surfaces of the front support rod and the front piece along the rotating direction of the end part of the front support rod on the front piece, the end parts of the front piece and the front support rod are respectively provided with a perforation structure for a screw rod part of the rotation limiting bolt to pass through, and the screw rod part of the rotation limiting bolt passes through the front support rod and the front piece and is in threaded connection with the rotation limiting nuts until the annular ratchets 41 between the front support rod and the front piece are mutually meshed to play a role in limiting the rotation of the front support rod when the front support; this rotation limiting structure 4 can make preceding bracing piece and the annular ratchet 41 meshing of anter after rotation limiting bolt and rotation limiting nut are screwed to effectively avoid preceding bracing piece to produce in the use rotation in the anter, can effectively improve the firm degree of being connected of preceding bracing piece and anter, and then be favorable to improving the stability in use degree and the safety in utilization of head ring undershirt.

The annular ratchets 41 are arranged on the abutting surfaces of the rear supporting rod and the rear piece along the rotating direction of the end part of the rear supporting rod on the rear piece, the end parts of the rear piece and the rear supporting rod are respectively provided with a perforation structure for a screw part of a rotation limiting bolt to pass through, the screw part of the rotation limiting bolt passes through the rear supporting rod and the rear piece and is in threaded connection with a rotation limiting nut until the annular ratchets 41 between the rear supporting rod and the rear piece are mutually meshed to play a role in limiting the rotation of the rear supporting rod when the rear supporting rod and the rear piece are mutually abutted; this limit is changeed structure 4 and can be in the limit change bolt and the limit change nut screw back make the back bracing piece mesh with the annular ratchet 41 of back part to effectively avoid the back bracing piece to produce in the use and rotate on the back part, can effectively improve the firm degree of being connected of back bracing piece and back part, and then be favorable to improving the stability in use degree and the safety in utilization of head ring undershirt.

The annular ratchets 41 are arranged on the abutting surfaces of the longitudinal connecting rod 232 and the transverse connecting rod 231 along the rotating direction of the end part of the longitudinal connecting rod 232 on the transverse connecting rod 231, the end parts of the transverse connecting rod 231 and the longitudinal connecting rod 232 are respectively provided with a perforation structure for a screw rod part of a rotation limiting bolt to pass through, the screw rod part of the rotation limiting bolt passes through the longitudinal connecting rod 232 and the transverse connecting rod 231 and is in threaded connection with a rotation limiting nut until the annular ratchets 41 between the longitudinal connecting rod 232 and the transverse connecting rod 231 are mutually engaged to play a role in limiting the rotation of the longitudinal connecting rod 232; this rotation limiting structure 4 can make the annular ratchet 41 meshing of indulging connecting rod 232 and horizontal connecting rod 231 after limit commentaries on classics bolt and limit commentaries on classics nut are screwed to effectively avoid indulging connecting rod 232 and produce the rotation in the use on horizontal connecting rod 231, can effectively improve the firm degree of being connected of indulging connecting rod 232 and horizontal connecting rod 231, and then be favorable to improving the stability in use degree and the safety in utilization of head ring undershirt.

The annular ratchets 41 are arranged on the abutting surfaces of the adjusting seat 21 and the head ring component 1 along the rotating direction of the adjusting seat 21 on the head ring component 1, the adjusting seat 21 and the head ring component 1 are both provided with a perforation structure for a screw rod part of a rotation limiting bolt to pass through, and the screw rod part of the rotation limiting bolt passes through the adjusting seat 21 and the head ring component 1 and is in threaded connection with a rotation limiting nut until the annular ratchets 41 between the adjusting seat 21 and the head ring component 1 are mutually meshed to play a role of limiting the rotation of the head ring component 1 when the adjusting seat 21 and the head ring component 1 are mutually abutted; this limit is changeed structure 4 and can be in limit commentaries on classics bolt and limit commentaries on classics nut and screw the back order and adjust seat 21 and the meshing of the annular ratchet 41 of head ring part 1 to effectively avoid adjusting seat 21 and producing in the use and rotating on head ring part 1, can effectively improve the firm degree of being connected of adjusting seat 21 and head ring part 1, and then be favorable to improving the stability in use degree and the safety in utilization of head ring undershirt.

The annular ratchets 41 are arranged on the abutting surfaces of the connecting slide block 12 and the fixed seat 111 along the rotating direction of the connecting slide block 12 on the fixed seat 111, the connecting slide block 12 and the fixed seat 111 are respectively provided with a perforation structure for the screw part of the rotation limiting bolt to pass through, the screw part of the rotation limiting bolt passes through the connecting slide block 12 and the fixed seat 111 and is in threaded connection with the rotation limiting nut until the annular ratchets 41 between the connecting slide block 12 and the fixed seat 111 are mutually engaged to play a role in limiting the rotation of the fixed seat 111 when the connecting slide block 12 and the fixed seat; this rotation limiting structure 4 can make the annular ratchet 41 meshing of link block 12 and fixing base 111 after the rotation limiting bolt is screwed with the rotation limiting nut to effectively avoid link block 12 to produce the rotation in the use on fixing base 111, can effectively improve the firm degree of being connected of link block 12 and fixing base 111, and then be favorable to improving the use stability degree and the safety in utilization of head ring undershirt.

The rotation limiting structure 4 is ingenious in design, simple in structure and easy to implement, can conveniently achieve rotation connection and locking connection between the two parts, and greatly improves the use flexibility and the use safety of the head ring vest.

The middle part of horizontal connecting rod 231 becomes round bar-shaped structure and sets up, and rotate and be connected with the grip ring 234 that is used for rotating the connection with indulging connecting rod 232, grip ring 234 becomes the setting of C font structure, and the opening part of grip ring 234 outwards extends and is provided with two centre gripping arms 2341, be provided with the perforation structure that supplies the screw rod part of restricted rotation bolt to pass on two centre gripping arms 2341, the screw rod part of restricted rotation bolt passes behind indulging connecting rod 232 and two centre gripping arms 2341 in proper order and the restricted rotation nut spiro union, be provided with annular ratchet 41 on the butt face of indulging connecting rod 232 and centre gripping arm 2341, it is fixed with the synchronous centre gripping that can realize grip ring 234 and horizontal connecting rod 231 when indulging connecting rod 232 to screw restricted rotation bolt and restricted rotation nut restriction. The clamping ring 234 can rotate on the transverse connecting rod 231 after the rotation limiting nut is unscrewed, the rotating axial direction of the clamping ring 234 on the transverse connecting rod 231 is the length direction of the transverse connecting rod 231, the end part of the longitudinal connecting rod 232 is rotatably connected with the two clamping arms 2341, and the rotating axial direction of the longitudinal connecting rod 232 on the clamping ring 234 is perpendicular to the length directions of the transverse connecting rod 231 and the longitudinal connecting rod 232, so that the longitudinal connecting rod 232 can simultaneously perform rotation adjustment in two directions on the transverse connecting rod 231 after the rotation limiting nut is unscrewed, and the adjustment flexibility of the connecting frame 23 is greatly improved; and be provided with annular ratchet 41 on the butt joint face of indulging connecting rod 232 and centre gripping arm 2341, make the annular ratchet 41 meshing of indulging connecting rod 232 and centre gripping arm 2341 after the limit is changeed bolt and limit is changeed the nut and is screwed, thereby effectively avoid indulging connecting rod 232 and producing the rotation in the use on centre gripping ring 234, can effectively improve the firm degree of being connected of indulging connecting rod 232 and centre gripping ring 234, and also the centre gripping through two centre gripping arms 2341 makes the connected state that can keep firm of centre gripping ring 234 and horizontal connecting rod 231, and then be favorable to improving the use stability and the safety in utilization of head ring undershirt.

The perforation structure that supplies limited slip bolt to pass on link block 12 and the perforation structure coincidence setting that supplies limited rotation bolt to pass on link block 12 make this limited slip bolt and limited rotation bolt be same bolt, this limited slip nut is same nut with limited rotation nut, this bolt and nut combine to realize the centre gripping fastening for a set of fastening components, fixing base 111 can rotate simultaneously and slide on head ring part 1 when loosening this group of fastening components promptly, the regulation flexibility degree and the application scope of skull nail subassembly 11 have been improved greatly, and fixing base 111 can effectively be fixed on head ring part 1 after screwing this group of fastening components, can effectively be restricted by limited slip structure 5 and limited rotation structure 4 simultaneously, thereby effectively improved operation efficiency.

The head ring component 1 is further provided with an elastic pre-pressing structure capable of driving the connecting sliding block 12 and the fixing seat 111 and elastically pre-pressing the connecting sliding block 12 and the head ring component 1, the elastic pre-pressing structure comprises a pre-pressing spring 13 sleeved on the bolt and/or an annular ratchet 41 and a strip-shaped ratchet 51 which are arranged to form an elastic tooth structure, and the elastic tooth is an inclined sheet-shaped structure of the ratchet (refer to fig. 3). This elasticity pre-compaction structure can form elastic resistance in butt department when carrying out the adjustment of sliding and/or pivoted of fixing base 111 behind the above-mentioned fastening components of suitable unscrewing, makes things convenient for medical staff to carry out nimble fine setting through the elastic resistance that elasticity pre-compaction structure formed when adjusting to the size accessible of this elastic resistance is adjusted above-mentioned fastening components's elasticity degree and is realized, has improved skull nail subassembly 11's regulation flexibility degree and operation efficiency greatly.

In addition, no matter selecting the pre-pressing spring 13 or the elastic tooth structure formed by the ratchets, the elastic pre-pressing structure can form the function of elastic resistance at the abutting part, but the pre-pressing spring 13 is selected in the preferred scheme of the application, the scheme has simple and easy implementation, the implementation can be realized only by sleeving the pre-pressing spring 13 on the bolt, but in order to avoid the long-time stress and compression of the pre-pressing spring 13 to the compression state and reduce the service life of the pre-pressing spring, an annular caulking groove for embedding one end of the pre-pressing spring 13 can be arranged on the end surface of the nut, the depth dimension of the annular caulking groove is larger than the length dimension of the pre-pressing spring 13 in the limit compression state, so that the pre-pressing spring 13 can not be compressed to the limit when the nut abuts against the fixing seat 111 in the screwing state, thereby effectively prolonging the service life of the pre, and the pre-pressure spring 13 abutted between the nut and the fixed seat 111 after the nut is screwed can also play a role of preventing the nut from loosening.

The head ring component 1 is arranged in a C-shaped structure formed by bending a rod material, and the opening of the head ring component 1 faces the hindbrain of the head of a human body, so that a patient can conveniently wear the head ring vest to have a rest on the back; the cross section of the head ring component 1 in the length direction is arranged in an I-shaped structure, so that the convex edges 11221 on the two sides of the head ring component 1 play a role of reinforcing ribs, the structural strength of the head ring component 1 is greatly improved, and the improvement of the installation firmness degree of the skull nail component 11 is facilitated; the middle part of 1 both sides of head ring part is provided with the groove structure who supplies link block 12 embedding and the nut part embedding that supplies the limited slip bolt respectively, link block 12's thickness dimension is greater than 1 middle part groove structure's of head ring part depth dimension, structural design is ingenious, it is compact, existing effect has improved the structural strength of head ring part 1, also can effectively combine with link block 12 and limited slip bolt's nut part simultaneously, mounting structure's compact degree has been improved greatly, thereby be favorable to reducing the installation volume of 1 department of head ring part, reduce the influence to the person of wearing daily life.

The locking nail 112 comprises a supporting tube 1121, two sealing covers 1122 which are arranged in a tubular structure and are used for sealing openings at two ends of the supporting tube 1121, and a filler 1123 filled in a containing cavity formed by surrounding the supporting tube 1121 and the sealing covers 1122, wherein the sealing covers 1122 are made of deformable materials, the filler 1123 is made of an elastic material such as silica gel or rubber, when the adjusting bolt 113 acts on the locking nail 112, one sealing cover 1122 can be pressed to enable the other sealing cover 1122 to be subjected to micro-deformation through the filler 1123, and therefore the locking nail 112 can be designed to achieve axial micro-deformation, the end portion of the locking nail 112 is enabled to be more adaptive to the skull, the stability degree can be improved, the skull pressure of a patient can be effectively prevented from being increased, and pain of the patient can be effectively reduced.

It should be noted here that, in order to improve the installation stability of the locking nail 112, a tip may be further protruded on the end surface of the cover 1122 facing the head of the human body, and one tip may be provided, or a plurality of tips may be densely arranged, so as to be beneficial to improving the locking degree of the locking nail 112 and the skull, and then the locking nail 112 may be matched to realize axial micro-deformation, so that the locking nail 112 may be combined with the skull by rigid and flexible locking, thereby greatly improving the installation stability of the locking nail 112.

The supporting tube 1121 and a cover 1122 are integrally formed, the wall thickness of the supporting tube 1121 is greater than the thickness of the cover 1122, the cover 1122 integrally formed with the supporting tube 1121 is arranged towards the head of a human body, so that not only can direct contact between the filler 1123 and the skin of a patient in case of leakage be avoided, but also the connection part of the cover 1122 and the supporting tube 1121 can have a smooth transition effect when being deformed, so that the adaptability with the skull bone can be improved, pain brought to the patient can be further reduced, the cover 1122 at the other end can be deformed inwards when being abutted against the adjusting bolt 113, and the outer diameter of the end part of the adjusting bolt 113 is smaller than the inner diameter of the supporting tube 1121, so that the adjusting bolt 113 has greater deformation capability of the locking nail 112, and the application range and the use flexibility of the skull nail assembly 11 are greatly improved; and this closing cap 1122 epirelief is equipped with protruding stupefied 11221, is provided with the directional spout 1114 that supplies protruding stupefied 11221 embedding on the fixing base 111, and the slip direction of protruding stupefied 11221 in directional spout 1114 keeps unanimous with the slip direction of locking nail 112 on fixing base 111, and the axial of locking nail 112 on fixing base 111 can conveniently be realized to this protruding stupefied 11221 and the setting of directional spout 1114.

The fixing seat 111 is at least provided with two working surfaces 1111 for the connection of the locking nails 112 and the adjusting bolts 113, and the plurality of working surfaces 1111 are provided with a plurality of groups of locking nails 112 and adjusting bolts 113, so that the skull nail assembly 11 can further effectively improve the installation firmness degree by increasing the contact points with the skull of a patient, the pressure of the single locking nail 112 on the skull can be properly reduced, the operation safety degree is further improved, the pain of the patient is reduced, and the application range of the head ring vest is greatly enlarged.

All be provided with on each activity face 1111 and supply the screw hole 1112 of adjusting bolt 113 spiro union and supply the slip hole 1113 that the locking nail 112 axial slided, screw hole 1112 sets up with the coaxial and interval of slip hole 1113, the internal diameter size of screw hole 1112 is not less than the internal diameter size of slip hole 1113, and the internal diameter size of slip hole 1113 and the external diameter size looks adaptation of locking nail 112, directional spout 1114 sets up on the inside wall of screw hole 1112, and directional spout 1114 can inwards extend from screw hole 1112 one end, also can run through the setting, mainly used for supplying locking nail 112 to realize the axial and slide, and above-mentioned structure can effectively avoid locking nail 112 slippage in the slip hole 1113.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. The utility model provides a head ring undershirt, is including being used for the head ring part (1) of cover at human head, the both sides of head ring part (1) are connected with adjustable support (2) that are used for adjusting traction angle respectively, and the tip that head ring part (1) were kept away from in two adjustable support (2) all is connected to on brace undershirt (3), brace undershirt (3) are including relative anter and the back part that sets up for wear at human front chest and back and play the supporting role, characterized by: the adjustable support (2) comprises an adjusting seat (21) connected with the head ring component (1), a support frame (22) connected with the support vest (3) and a connecting frame (23) connected between the adjusting seat (21) and the support frame (22), the support frame (22) comprises a front support rod connected with the front piece in a rotating manner and a rear support rod connected with the rear piece in a rotating manner, a rotation limiting structure (4) used for limiting the rotation of the front support rod is arranged between the front support rod and the front piece, a rotation limiting structure (4) used for limiting the rotation of the rear support rod is also arranged between the rear support rod and the rear piece, the connecting frame (23) comprises a transverse connecting rod (231) connected between the front support rod and the rear support rod and a longitudinal connecting rod (232) connected between the middle part of the transverse connecting rod (231) and the adjusting seat (21), two ends of the transverse connecting rod (231) are connected with a connecting seat (233) connected with the support frame (22) in a sliding manner in a rotating manner, the utility model discloses a limit slip structure (5) that can restrict connecting seat (233) gliding is provided with in the butt department of connecting seat (233) and support frame (22), indulge connecting rod (232) one end and rotate to be connected in horizontal connecting rod (231) middle part, and indulge the rotation axial of connecting rod (232) on horizontal connecting rod (231) and indulge the length direction of connecting rod (232) and horizontal connecting rod (231) and all set up perpendicularly, indulge the butt department of connecting rod (232) and horizontal connecting rod (231) and be provided with and restrict and indulge connecting rod (232) pivoted limit structure (4), it is connected with head ring part (1) rotation to adjust seat (21) one end, and the other end with indulge connecting rod (232) and slide, the butt department of adjusting seat (21) and head ring part (1) is provided with and restricts the gliding limit slip structure (4) of adjusting seat (21), it is provided with the limit slip structure (2) that can restrict adjusting seat (21) gliding limit to adjust seat (21) butt department 5) (ii) a

The skull nail component (11) used for being abutted against the head of a human body is arranged on the head ring component (1), the skull nail component (11) comprises a fixed seat (111) which is connected to the head ring component (1) in a sliding and rotating mode, a locking nail (112) which is connected to the fixed seat (111) in a sliding and rotating mode, and an adjusting bolt (113) which is in threaded connection with the fixed seat (111), the top end of the adjusting bolt (113) is abutted against the tail end of the locking nail (112) and can push the locking nail (112) to slide in the rotating process of the adjusting bolt (113), the locking nail (112) and the fixed seat (111) are arranged in an axial sliding and circumferential rotation limiting connection mode, a connecting sliding block (12) which is connected with the fixed seat (111) in a rotating mode is connected on the head ring component (1) in a sliding mode, a sliding limiting structure (5) capable of limiting the connecting sliding of the connecting sliding block (12) is arranged at the abutting part of the connecting, the connection sliding block (12) is provided with a rotation limiting structure (4) capable of limiting the rotation of the fixing seat (111) at the joint of the fixing seat (111).

2. A headgear vest as claimed in claim 1, wherein: the sliding limiting structure (5) comprises strip-shaped ratchets (51) arranged on the abutting surfaces, and a sliding limiting bolt and a sliding limiting nut which are in threaded connection, the strip-shaped ratchets (51) are arranged on the abutting surfaces of the connecting seat (233) and the supporting frame (22) along the sliding direction of the connecting seat (233) on the supporting frame (22), a perforated structure for the screw part of the sliding limiting bolt to penetrate is arranged on the connecting seat (233), sliding groove structures for the screw part of the sliding limiting bolt to penetrate and slide are arranged on the front supporting rod and the rear supporting rod, the screw part of the sliding limiting bolt penetrates through the connecting seat (233) and the supporting frame (22) and then is in threaded connection with the sliding limiting nut until the strip-shaped ratchets (51) between the connecting seat (233) and the supporting frame (22) are mutually meshed to play a role in limiting the sliding of the connecting seat (233);

the strip-shaped ratchets (51) are arranged on the abutting surfaces of the adjusting seat (21) and the longitudinal connecting rod (232) along the sliding direction of the adjusting seat (21) on the longitudinal connecting rod (232), a perforated structure for a screw part of a limited slip bolt to pass through is arranged on the adjusting seat (21), a sliding groove structure for the screw part of the limited slip bolt to pass through and slide is arranged on the longitudinal connecting rod (232), the screw part of the limited slip bolt passes through the adjusting seat (21) and the longitudinal connecting rod (232) and then is in threaded connection with a limited slip nut until the strip-shaped ratchets (51) between the adjusting seat (21) and the longitudinal connecting rod (232) are mutually meshed to play a role in limiting the sliding of the adjusting seat (21);

the connecting slide block (12) is arranged on the abutting surface of the connecting slide block (12) and the head ring component (1) along the sliding direction of the connecting slide block (12) on the head ring component (1), a perforated structure for the screw part of the slide-limiting bolt to pass through is arranged on the connecting slide block (12), a sliding groove structure for the screw part of the slide-limiting bolt to pass through and slide is arranged on the head ring component (1), and the screw part of the slide-limiting bolt passes through the connecting slide block (12) and the head ring component (1) and then is in threaded connection with the slide-limiting nut until the strip-shaped ratchet teeth (51) between the connecting slide block (12) and the head ring component (1) are mutually meshed to play a role of limiting the sliding of the connecting slide block (12).

3. A headgear vest as claimed in claim 2, wherein: the both ends of horizontal connecting rod (231) all are provided with the regulation spout that supplies the screw rod part of limit slip bolt to pass and slide, the screw rod part of limit slip bolt passes support frame (22) and connecting seat (233) and horizontal connecting rod (231) back and limit slip nut spiro union to limit slip bolt and limit slip nut spiro union in-process can realize fixing with the synchronous centre gripping of horizontal connecting rod (231) when fixing connecting seat (233) on support frame (22).

4. A headgear vest as claimed in claim 2 or claim 3, wherein: the rotation limiting structure (4) comprises annular ratchets (41) arranged on the abutting surfaces, and rotation limiting bolts and rotation limiting nuts in threaded connection, the annular ratchets (41) are arranged on the abutting surfaces of the front support rod and the front piece along the rotating direction of the end part of the front support rod on the front piece, the end parts of the front piece and the front support rod are respectively provided with a perforation structure for the screw part of the rotation limiting bolt to pass through, and the screw part of the rotation limiting bolt passes through the front support rod and the front piece and is in threaded connection with the rotation limiting nuts until the annular ratchets (41) between the front support rod and the front piece are mutually meshed to play a role in limiting the rotation of the front support rod when the front support rod and the;

the annular ratchets (41) are arranged on the abutting surfaces of the rear supporting rod and the rear piece along the rotating direction of the end part of the rear supporting rod on the rear piece, the end parts of the rear piece and the rear supporting rod are respectively provided with a perforation structure for a screw part of a rotation limiting bolt to pass through, the screw part of the rotation limiting bolt passes through the rear supporting rod and the rear piece and is in threaded connection with a rotation limiting nut until the annular ratchets (41) between the rear supporting rod and the rear piece are mutually meshed to play a role in limiting the rotation of the rear supporting rod when the rear supporting rod and the rear piece are mutually abutted;

the annular ratchets (41) are arranged on the abutting surfaces of the longitudinal connecting rod (232) and the transverse connecting rod (231) along the rotating direction of the end part of the longitudinal connecting rod (232) on the transverse connecting rod (231), the end parts of the transverse connecting rod (231) and the longitudinal connecting rod (232) are respectively provided with a perforation structure for the screw rod part of the rotation limiting bolt to pass through, and the screw rod part of the rotation limiting bolt passes through the longitudinal connecting rod (232) and the transverse connecting rod (231) and is in threaded connection with the rotation limiting nut until the longitudinal connecting rod (232) and the transverse connecting rod (231) abut against each other, and the annular ratchets (41) between the longitudinal connecting rod (232) and the transverse connecting rod (231) are meshed;

the annular ratchets (41) are arranged on the abutting surfaces of the adjusting seat (21) and the head ring component (1) along the rotating direction of the adjusting seat (21) on the head ring component (1), the adjusting seat (21) and the head ring component (1) are both provided with a perforation structure for a screw rod part of a rotation limiting bolt to pass through, and the screw rod part of the rotation limiting bolt passes through the adjusting seat (21) and the head ring component (1) and is in threaded connection with a rotation limiting nut until the annular ratchets (41) between the adjusting seat (21) and the head ring component (1) are mutually engaged to play a role of limiting the rotation of the head ring component (1);

the annular ratchets (41) are arranged on the abutting surfaces of the connecting sliding block (12) and the fixed seat (111) along the rotating direction of the connecting sliding block (12) on the fixed seat (111), the connecting sliding block (12) and the fixed seat (111) are respectively provided with a perforation structure for the screw part of the rotation limiting bolt to pass through, and the screw part of the rotation limiting bolt passes through the connecting sliding block (12) and the fixed seat (111) and is in threaded connection with the rotation limiting nut until the annular ratchets (41) between the connecting sliding block (12) and the fixed seat (111) are mutually abutted to play a role in limiting the rotation of the fixed seat (111).

5. A headgear vest as claimed in claim 4 wherein: the middle part of horizontal connecting rod (231) becomes the setting of circle shaft-like structure to the rotation is connected with and is used for rotating clamping ring (234) of being connected with vertical connecting rod (232), clamping ring (234) become the setting of C font structure, and the opening part of clamping ring (234) outwards extends and is provided with two centre gripping arms (2341), is provided with the perforation structure that supplies the screw rod part of rotation-limiting bolt to pass on two centre gripping arms (2341), and the screw rod part of rotation-limiting bolt passes vertical connecting rod (232) and two centre gripping arms (2341) back and rotation-limiting nut spiro union in proper order, be provided with annular ratchet (41) on the butt face of vertical connecting rod (232) and centre gripping arm (2341), screw rotation-limiting bolt and rotation-limiting nut restriction vertical connecting rod (232) can realize when rotating on clamping ring (234) that clamping ring (234) and horizontal connecting rod (231) centre gripping are fixed.

6. A headgear vest as claimed in claim 4 wherein: the connecting device is characterized in that a perforated structure for allowing a limited slip bolt to pass through on the connecting sliding block (12) and a perforated structure for allowing a limited rotation bolt to pass through on the connecting sliding block (12) are overlapped, an elastic pre-pressing structure capable of driving the connecting sliding block (12) and the fixing seat (111) and the connecting sliding block (12) and the head ring component (1) to be elastically pre-pressed is further arranged on the head ring component (1), the elastic pre-pressing structure comprises a pre-pressing spring (13) and/or an annular ratchet (41) and a strip-shaped ratchet (51) which are sleeved on the bolt and are arranged in an elastic tooth structure, and the elastic teeth are arranged in a sheet structure with the ratchets inclined.

7. A headgear vest as claimed in claim 1, wherein: head ring part (1) is bent by the pole material and is made C font structure setting to the back brain of human head is faced to the opening of head ring part (1), head ring part (1) length direction's cross section becomes I-shaped structure setting, the middle part of head ring part (1) both sides is provided with respectively and supplies connecting block (12) embedding and supplies the groove structure of the nut part embedding of limited slip bolt, the thickness dimension of connecting block (12) is greater than the depth dimension of head ring part (1) middle part groove structure.

8. A headgear vest as claimed in claim 1, wherein: the locking nail (112) comprises a support tube (1121) which is arranged in a tubular structure, two covers (1122) which close and close two openings at two ends of the support tube (1121), and filler (1123) filled in a containing cavity formed by the support tube (1121) and the covers (1122) in a surrounding mode, wherein the covers (1122) are made of deformable materials, and the filler (1123) is made of elastic materials.

9. A headgear vest as claimed in claim 8 wherein: the supporting tube (1121) and a sealing cover (1122) are integrally formed, the wall thickness of the supporting tube (1121) is larger than the thickness of the sealing cover (1122), the sealing cover (1122) integrally formed with the supporting tube (1121) faces the head of a human body, a convex edge (11221) is convexly arranged on the other sealing cover (1122), a directional sliding groove (1114) for the convex edge (11221) to be embedded into is formed in the fixing seat (111), and the sliding direction of the convex edge (11221) in the directional sliding groove (1114) is consistent with the sliding direction of the locking nail (112) on the fixing seat (111).

10. A headgear vest as claimed in claim 9 wherein: fixing base (111) are gone up and are provided with operation face (1111) that two places supply lock solid nail (112) and adjusting bolt (113) to be connected at least, all are provided with on each operation face (1111) and supply screw hole (1112) of adjusting bolt (113) spiro union and supply slide hole (1113) that lock solid nail (112) axial slided, screw hole (1112) and the coaxial setting of slide hole (1113), the internal diameter size of screw hole (1112) is not less than the internal diameter size of slide hole (1113), and the internal diameter size of slide hole (1113) and the external diameter size looks adaptation of lock solid nail (112), directional spout (1114) sets up on the inside wall of screw hole (1112).

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