CN209997051U - A conical spiral translation expansion rescue equipment - Google Patents

Abstract

The utility model discloses a conical spiral translation type expansion rescue equipment, which comprises a body, two clamp bodies, a rotating shaft, a shaft sleeve and a clutch; a hydraulic motor is installed on the body, and an output shaft of the hydraulic motor is connected to the rear end of the rotating shaft , the front end of the rotating shaft is provided with a conical spiral cutting head, and the rear of the rotating shaft is provided with a thread; the two clamp bodies are hinged to the body, and the two clamp bodies are arranged symmetrically about the thread axis; The diameter of the conical bottom of the helical cutting head is larger than the width when the two jaws are closed, and is located in front of the jaws; one end of the rear end pull rod of the clamp body is hinged, and the other end of the pull rod is hinged with the shaft sleeve; the clutch can pass through the shaft sleeve , The pull rod drives the clamp body to open. The utility model solves the defect that the existing dilator cannot be stretched into for expansion when there is a narrow gap or no gap, and slides with the gradual expansion of the expansion distance, and can safely and quickly save the injured person; the utility model also has the advantages of The advantages of simple structure and convenient operation.

Description

A conical spiral translation expansion rescue equipment

technical field

The utility model belongs to the technical field of rescue mechanical equipment, in particular to a conical spiral translation type expansion rescue equipment.

Background technique

With the frequent occurrence of geological disasters such as earthquakes, as well as traffic, industrial and residential accidents, the state has paid more and more attention to the rescue work of sudden disasters. Rescue officers and soldiers will spare no effort to rescue the injured and trapped people. In rescue work, time is life, and rescue equipment is also an indispensable weapon in their hands, and plays an increasingly important role in rescue work. Therefore, There are also increasing demands on rescue equipment. For example, in the currently widely used rescue dilator, since the forceps must be applied to the jaws during expansion, the jaw structure must have a certain thickness. Therefore, the jaws need to be inserted into the pre-wide gap before the expansion starts. For example, when the gap is less than 5 mm or there is no gap, it cannot be extended for expansion, so other methods or tools must be used to properly expand the narrow gap before expansion rescue can be carried out, which delays the best rescue operation. Time affects the rescue effect. During the operation of the rescue dilator, since the expansion jaws of the rescue dilator at home and abroad are all simple and rough inclined anti-skid structures, the relative angle changes with the gradual expansion of the expansion distance, and the possibility of sliding increases. , the possibility of secondary damage caused by sliding exists at any time.

Utility model content

In order to solve the above-mentioned technical problems, the utility model provides a kind of simple structure and convenient operation, which can use the conical helical cutting to squeeze in and expand when the gap is less than 5 mm, or use the conical helical after hitting with its own mass when there is no gap. It is a conical spiral translation type expansion rescue equipment that can cut, squeeze, expand and tear the steel plate, and can expand a large distance for rescue.

The technical scheme adopted by the utility model is: a conical spiral translation type expansion rescue equipment, comprising a body, two clamp bodies, a rotating shaft, a shaft sleeve and a clutch; a hydraulic motor is installed on the body, and the hydraulic motor The output shaft is connected to the rear end of the rotating shaft, the front end of the rotating shaft is provided with a conical spiral cutting head, and the rear part of the rotating shaft is provided with threads; A pliers mouth is provided, the diameter of the cone bottom of the conical spiral cutting head is larger than the width when the two pliers mouths are closed, and is located in front of the pliers mouth; one end of the rear end pull rod of the pliers body is hinged, and the other end of the pull rod is connected with the shaft sleeve Hinged; the shaft sleeve is sleeved on the threaded part of the rotating shaft, the clutch includes a movable block, a push block and a clutch switch, the movable block is screwed with the threaded part of the rotating shaft, the push block is sleeved on the rotating shaft, the movable block and the push block The opposite end faces are provided with grooves and bumps that cooperate with each other. The clutch switch is a columnar structure and is fixedly installed on the side of the push block. The clutch switch is embedded in the L-shaped chute in the middle of the fuselage.

In the above-mentioned conical spiral translation expansion rescue equipment, a driven bevel gear is arranged on the rotating shaft, the driven bevel gear meshes with the driving bevel gear, the rotating shaft of the driving bevel gear extends out of the fuselage, and the rotating shaft of the driving bevel gear There is a handle at the end.

In the above-mentioned conical helical translation expansion rescue equipment, the conical helical cutting head is a cone, the surface of the cone is machined with a helical cutting edge, and the chip breaker is helically cut from the top to the bottom of the cone. groove.

In the above-mentioned conical helical translation expansion rescue equipment, the pliers body includes a pliers mouth, a triangular long arm I and a triangular long arm II, and a triangular long arm I is fixedly installed on the upper and lower end faces of the pliers mouth, respectively. A triangular long arm II is fixedly installed on the side of the arm; the long arm I is hinged with the shaft sleeve through the pull rod I, the long arm II is hinged with the shaft sleeve through the pull rod II, and the pull rod I, the pull rod II and the shaft sleeve form a parallelogram.

In the above-mentioned conical spiral translation expansion rescue equipment, anti-skid teeth are provided on the side surfaces of the jaws.

In the above-mentioned conical helical translation expansion rescue equipment, the rear end of the helical cutting head is provided with a connecting portion with a hexagonal cross-section; the front end of the rotating shaft is provided with a blind hole with a hexagonal cross-section; Blind hole fit at the front end of the shaft.

Compared with the prior art, the beneficial effects of the present utility model are:

When the utility model is used, firstly, the first-stage expansion, that is, the conical spiral cutting head is squeezed into the narrow gap that needs to be expanded, so that the narrow gap can be expanded to a larger gap that can extend into the thickness of the expanding jaw; Follow up the gap that has been expanded, and then engage the second-level expanded work operating mechanism, that is, the movable block of the clutch, with the moving block to limit the rotation of the moving block, forcing the moving block to move axially, and driving the pull rod through the shaft sleeve to pull the clamp body. , drive the jaws to expand.

Therefore, by adding a threaded shaft and its conical spiral cutting head and a translational expansion clamp body in the dilator, the present invention solves the problem that the existing dilator cannot extend into the dilator for expansion when there is a narrow gap or no gap. With the gradual expansion of the expansion distance, the defect of sliding may occur, and the purpose of safely and quickly rescuing the injured person can be achieved; the utility model also has the advantages of simple structure and convenient operation.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a structural diagram of the shaft sleeve of the present invention.

Fig. 3 is the installation diagram of the clutch and the shaft sleeve on the rotating shaft of the present invention.

FIG. 4 is a schematic diagram of a partial structure of the tapered helical cutting head in FIG. 1 .

FIG. 5 is a partial structural schematic diagram of the torque transmission device after the fuselage in FIG. 1 is disassembled.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in FIG. 1 , the present invention includes a body 9 , two clamp bodies 6 , a rotating shaft 12 , a shaft sleeve 15 and a clutch 7 ; a hydraulic motor 1 is installed on the body 9 , and the output shaft of the hydraulic motor 1 is connected to The rear end of the rotating shaft 12 and the front end of the rotating shaft 12 are provided with a tapered helical cutting head 4 . As shown in FIG. 4 , the tapered helical cutting head 4 is a cone, a helical cutting edge 41 is machined on the side of the cone, and a chipbreaker is provided helically cut from the top to the bottom of the cone. 42. The helix angle makes chip removal smoother. The rear end of the screw cutting head 4 is provided with a connecting portion 43 with a hexagonal cross-section; the front end of the rotating shaft 12 is provided with a blind hole with a hexagonal cross-section; the connecting portion 43 of the screw cutting head 4 is matched with the blind hole at the front end of the rotating shaft 12 . The rotating shaft 12 is provided with a driven bevel gear 13, the driven bevel gear 13 meshes with the driving bevel gear 14, the rotating shaft of the driving bevel gear 14 extends out of the fuselage, and the end of the rotating shaft of the driving bevel gear 14 is provided with a handle 11. . The torque input can be stepless speed regulation through the hydraulic motor, or the hand crank 11 can drive the driving bevel gear 14 to rotate, and then the driven bevel gear 13 can drive the rotating shaft 12 to rotate together. Rotary expansion work.

The rear part of the rotating shaft 12 is provided with a thread; the two clamp bodies 6 are hinged to the body, and the two clamp bodies 6 are arranged symmetrically about the thread axis. The pliers body 6 includes a pliers mouth 5, a triangular long arm I2 and a triangular long arm II3, the upper and lower end faces of the pliers mouth 5 are respectively fixed with a triangular long arm I2, and the side of the pliers mouth 5 is fixedly installed with a triangular long arm I2. Arm II3; the long arm I2 is hinged with the shaft sleeve through the pull rod I3, the long arm II2 is hinged with the shaft sleeve through the pull rod II3, and the pull rod I2, the pull rod II3 and the shaft sleeve form a parallelogram. The diameter of the cone bottom of the conical helical cutting head 4 is larger than the width when the two jaws 5 are closed, and is located in front of the jaws 5 . The side of the jaw 5 is provided with anti-slip teeth, so as to better contact the object to be expanded without sliding and expanding, and reduce the possibility of secondary injury caused by sliding.

The shaft sleeve is sleeved on the threaded part of the rotating shaft 12, the clutch 7 includes a movable block 71, a push block 72 and a clutch switch 73, the movable block 71 is screwed with the threaded part of the rotating shaft 12, and the push block 72 is sleeved on the rotating shaft 12. Above, the opposite end surfaces of the movable block 71 and the push block 72 are provided with grooves and bumps that cooperate with each other. The clutch switch 73 is a columnar structure and is fixedly installed on the side of the push block 72. The clutch switch 73 is embedded in the Inside the L-shaped chute 91 in the middle of the fuselage 9 .

When the utility model works, firstly, the clutch switch 73 of the clutch 7 is located in the bottom transverse groove of the L-shaped chute 8 of the fuselage 9, therefore, the movable block 71 of the clutch 7 on the rotating shaft 12 is disengaged from the push block 72 state, the input torque is linked to the rotating shaft 12, and the rotating shaft 12 drives the conical helical cutting head 4 to gradually (or impact) squeeze into the narrow gap under the action of the external input torque, axial force and self-tapping force. Increasing the narrow gap is gradually expanded by the cone into a larger gap. Next, pull the clutch switch 73 of the movable clutch 7 into the axial groove part of the L-shaped chute 8, the input torque directly links the rotating shaft 12, and the movable block 71 of the clutch 7 sleeved on the rotating shaft 12 is combined with the push block 72. The axial groove part of the clutch switch 7 of the embedded movable clutch entering the chute 8 is stuck, so that the movable block 71 of the clutch 7 cannot rotate with the rotating shaft, but can only move axially under the action of the threaded part of the rotating shaft 12, that is, The rotation torque is converted into axial displacement, and the pliers body 6 is pulled by the pull rod I2 and II3 to move, so that the pliers mouth 5 fixed with the pliers body 6 is opened, and the expansion of the pliers mouth 5 is the second expansion.

When there is no additional input torque, the hand crank 11 can drive the driving bevel gear 14 to rotate, and then the driven bevel gear 13 drives the rotating shaft 12 to rotate together. Under the axial push of manpower, the conical helical cutting head 4 rotates and expands. .

Brief description of working principle:

When a small gap needs to be expanded, the hydraulic motor 1 or the crank handle 11 drives the rotating shaft 12 to rotate, and the spiral cone head of the helical cutting head 4 is rotated and expanded under the push of the human axial direction. The helical cone head of the helical cutting head 4 is screwed to a certain position, and the expansion pliers follow the cone hole. Next, the expander needs to continue to expand, the long axis of the rotating shaft 12 continues to rotate, and the clutch 7 sleeved on the long axis of the rotating shaft 12 pushes the shaft sleeve The shaft sleeve slider pulls the two clamp bodies 6 to move through the pull rod I2 and the pull rod II3. At this time, the utility model performs the expansion operation. The utility model supports and breaks the obstacle object. During the process of opening the clamp body 6, the angle between the clamp body 6 of the present invention and the object to be expanded does not change vertically, and the clamp body 6 of the present invention can always be maintained with the object to be expanded. Vertical static, reduce the possibility of the dilator slipping, improve the safety and stability of the dilator.

Claims (6)

1. a conical spiral translation type expansion rescue equipment, it is characterized in that: comprise fuselage, two clamp bodies, rotating shaft, shaft sleeve and clutch; described fuselage is provided with hydraulic motor, the output shaft of hydraulic motor is connected The rear end of the rotating shaft, the front end of the rotating shaft is provided with a conical spiral cutting head, and the rear part of the rotating shaft is provided with a thread; the two clamp bodies are hinged with the body, and the two clamp bodies are arranged symmetrically about the thread axis; the front end of the clamp body is provided with a clamp The diameter of the cone bottom of the conical spiral cutting head is larger than the width when the two jaws are closed, and is located in front of the jaws; the rear end of the jaw body is hinged at one end of the rod, and the other end of the rod is hinged with the shaft sleeve; so The shaft sleeve is sleeved on the threaded part of the rotating shaft, and the clutch includes a movable block, a push block and a clutch switch, the movable block is screwed with the threaded part of the rotating shaft, the push block is sleeved on the rotating shaft, and the end faces of the movable block and the push block are opposite. There are grooves and bumps that cooperate with each other, the clutch switch is a columnar structure and is fixedly installed on the side of the push block, and the clutch switch is embedded in the L-shaped chute in the middle of the fuselage. 2. The conical helical translation expansion rescue equipment according to claim 1, wherein the rotating shaft is provided with a driven bevel gear, the driven bevel gear meshes with the driving bevel gear, and the rotating shaft of the driving bevel gear extends Out of the fuselage, the end of the rotating shaft of the driving bevel gear is provided with a handle. 3 . The conical helical translation expansion rescue equipment according to claim 1 , wherein the conical helical cutting head is a cone, and the surface of the cone is machined with a helical cutting edge. A chipbreaker is helically cut to the bottom. 4. The conical helical translation expansion rescue equipment according to claim 1, wherein the pliers body comprises a pliers mouth, a triangular long arm I and a triangular long arm II, and the upper and lower end surfaces of the pliers mouth are respectively fixed A triangular long arm I is installed, and a triangular long arm II is fixedly installed on the side of the pliers mouth; the long arm I is hinged with the shaft sleeve through the pull rod I, the long arm II is hinged with the shaft sleeve through the pull rod II, the pull rod I, the pull rod II and the shaft sleeve form a parallelogram. 5 . The conical helical translation expansion rescue equipment according to claim 1 , wherein anti-skid teeth are provided on the side surfaces of the jaws. 6 . 6. The conical helical translation type expansion rescue equipment according to claim 1, wherein the rear end of the helical cutting head is provided with a connecting portion with a hexagonal cross-section; the front end of the rotating shaft is provided with a hexagonal cross-section. Blind hole; the connecting part of the helical cutting head is matched with the blind hole at the front end of the rotating shaft.

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