CN105476672A - Length-adjustable universal headstock fixing drag hook - Google Patents

Abstract

The invention relates to a length-adjustable universal headstock fixing drag hook. The drag hook comprises a multi-hole blade with a drag hook body, an arc-shaped hook arm, an adjustable arm and a headstock fixer, wherein an arc-shaped drag hook blade is arranged at the lower end of the multi-hole blade with the drag hook body, and a multi-hole drag hook soft band is arranged at the upper end of the multi-hole blade with the drag hook body; hooks are arranged on the upper side and the lower side of one end of the arc-shaped hook arm, and the section is cylindrical; the head end of the adjustable arm is provided with an arc-shaped hook arm moving hole and an arc-shaped hook arm fixer, and the lower portion of the adjustable arm is provided with a supporting rod and a supporting plate; the headstock fixer comprises a fixed hook arranged at the tail end of the adjustable arm, a separate reverse fixed hook and a drag hook fixer capable of temporarily fixing the reverse fixed hook and the fixed hook. In the using process, the drag hook is fixed to a headstock cross bar through the drag hook fixer, the length is adjusted through the adjustable arm, the supporting rod and the supporting plate provide sufficient supporting force for the head end, the drag hook pulling direction is set through the arc-shaped hook arm arranged in the arc-shaped hook arm moving hole in a sleeved mode, and the multi-hole blade with the drag hook body is pulled and overhung through the multi-hole drag hook soft band suspended on the hooks. When the drag hook is applied to big-incision abdominal and pelvic cavity operations, the workload of a doctor is greatly reduced. The drag hook is simple in structure, convenient to use and safe and reliable in effect.

Description

Length adjustable universal head frame fixed hook

technical field

The invention relates to a surgical retractor, in particular to a length-adjustable universal head frame fixed retractor, which belongs to the technical field of medical instruments.

Background technique

Surgical operations, especially abdominal surgery, need to fully expose the surgical field of view, and use the pulling blades to pull the abdominal wall upwards to form enough surgical space to facilitate surgical operations and reduce possible injuries. The current stretching operation is performed manually by the surgeon. One operation is very tiring, and the pulling force varies from person to person. The pulling effect often changes, the surgical field of view is exposed unstable, and the retractors occupy the edge of the operating table. It will cause crowding to the surgical personnel, but will affect the progress of the operation.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a length-adjustable universal head frame fixing hook, which can simply and conveniently fix the abdominal surgery traction hook on the insertion rod beside the operating bed, reducing the workload of doctors , easy to operate, simple and convenient, safe and reliable.

According to the technical solution provided by the present invention, a length-adjustable universal head frame fixing hook includes a multi-hole belt hook blade, an arc-shaped hook arm, an adjustable arm and a head frame fixer for temporarily fixing the head frame crossbar. The lower end of the drag hook blade with a porous belt is provided with an arc-shaped hook blade, and the upper end is provided with a soft belt of a porous drag hook. The arc-shaped hook arm is provided with a cylindrical arc-shaped rod with a cross-section, and a plurality of arc-arm hooks are arranged at one end thereof. The head end of the adjustable arm is provided with an active hole for nesting the arc-shaped hook arm and an arc-shaped hook arm fixer for temporarily fixing the arc-shaped hook arm nested in the movable hole. A hole hook is provided in front of the movable hole, which is used for hooking the porous belt puller blade when pulling the incision in the middle of the head side. The lower part of the adjustable arm is provided with a support body for supporting the adjustable arm.

The adjustable arm includes a groove half-arm provided with an inner cavity and an insertion rod half-arm capable of being sleeved in the inner cavity of the groove half-arm. A length-fixing screw hole is provided near the socket of the insertion rod half-arm on one side of the inner cavity of the half-arm of the groove, and a length-fixing bolt is arranged to match the inner diameter of the length-fixing screw hole. The inner wall of the length fixing screw hole and the outer wall of the length fixing bolt are provided with matching spiral patterns. The length fixing bolt can be sleeved in the length fixing screw hole and move along the long axis of the length fixing screw hole through rotation.

The arc-shaped hook arm fixer includes an arc-fixed screw hole running through one side wall of the movable hole and an arc-fixed bolt matching the arc-fixed screw hole, and the inner wall of the arc-shaped fixed screw hole and the outer wall of the arc-shaped fixed bolt are provided with matching spiral lines. The arc fixing bolt can be sleeved in the arc fixing screw hole and move along the long axis of the arc fixing screw hole through rotation.

The support body includes a support rod connected with the adjustable arm and a support plate connected with the support rod, and the support rod and the support plate are connected through a support joint. The lowermost end of the support rod is provided with a half joint 1, and the upper center of the support plate is provided with a half joint 2 matching with the half joint 1, one of the half joint 1 and the half joint 2 is a joint socket, and the other one is a matching joint head, The two half-joint bodies are matched and inlaid, and the angle can be changed without prolapse. The joint fixing screw hole and the joint bolt matching the joint fixing screw hole are set on the side wall of the joint socket. The inner wall of the joint fixing screw hole and the outer wall of the joint bolt are provided with a matching spiral pattern. Axis movement.

The head frame fixer includes a hook arranged at the tail end of the adjustable arm, a bolt fixing hole arranged at the projection at the top of the hook, a thread adjusting rod hook and a hook adjusting nut. The rear end of the hook of the threaded adjustment rod is provided with a reverse hook opposite to the hook, and the head end of the hook of the threaded adjustment rod is provided with a threaded adjustment rod whose outer diameter is smaller than the inner diameter of the bolt fixing hole. The threaded adjustment rod can be nested in the bolt fixing hole along the long axis slide. The outer surface of the threaded adjusting rod and the inner surface of the hook adjusting nut are provided with matching threads, and the hook adjusting nut can spirally move along the outer surface of the threaded adjusting rod. The outer diameter of the hook adjustment nut is larger than the inner diameter of the bolt fixing hole.

The advantages of the present invention: in the application of laparotomy, the abdominal retractor blade in working state can be temporarily fixed on the inserting rod beside the operating bed through various components simply and conveniently, reducing the workload of doctors, simple in structure, convenient in use, and safe and reliable in effect .

Description of drawings

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

Fig. 2 is the front schematic view of the porous belt drag hook blade of the present invention;

Fig. 3 is a schematic side view of the adjustable arm of the present invention;

Fig. 4 is the top view of support plate of the present invention;

Fig. 5 is a side view of the headgear fixer of the present invention.

Marking description: 1-Hook leaf with porous belt, 11-Hook blade with arc shape, 12-Hook soft belt with holes, 2-Arc hook arm, 21-Arc arm hook, 3-Adjustable arm, 30-Support body, 301- Support rod, 302-support plate, 303-support joint, 304-half joint 1, 305-half joint 2, 306-joint fixing screw hole, 307-joint bolt, 31-movable hole, 32-curved hook arm fixer , 321-radian fixing screw hole, 322-radian fixing bolt, 33-groove half arm, 34-rod half arm, 35-length fixing screw hole, 36-length fixing bolt, 37-hole hook, 4-head frame Fixer, 41-hook, 42-bolt fixing hole, 43-thread adjustment rod hook, 44-hook adjustment nut, 45-reverse hook, 46-thread adjustment rod.

detailed description

The present invention will be further described below in conjunction with specific drawings.

As shown in Figures 1 and 2, the length-adjustable universal head frame fixing hook includes a porous belt hook blade 1, an arc-shaped hook arm 2, an adjustable arm 3 and is used for temporary fixing with the head frame cross bar. The head frame holder 4. The lower end of the porous belt draw hook blade 1 is provided with an arc-shaped draw hook blade 11 , and the upper end is provided with a porous draw hook soft belt 12 . The arc-shaped hook arm 2 is provided with an arc-shaped rod with a cylindrical section, and a plurality of arc-arm hooks 21 are arranged at one end thereof. The head end of the adjustable arm 3 is provided with an active hole 31 for nesting the arc-shaped hook arm 2 and an arc-shaped hook arm fixer 32 for temporarily fixing the arc-shaped hook arm 2 nested in the movable hole 31 . A hole hook 37 is provided in front of the movable hole 31 for hooking the porous belt puller blade 1 when pulling the incision in the middle of the head side. The lower part of the adjustable arm 3 is provided with a support body 30 for supporting the adjustable arm 3 .

During use, first adjust the head frame fixer 4 to make the tail end of the length-adjustable universal head frame fixing drag hook be fixed on the crossbar of the operation head frame. Then adjust the length of the adjustable arm 3 to the best, to adapt to the chest length of different human bodies, make the head end of the adjustable arm 3 be positioned at the front of the head side of the surgical incision, and adjust the support body 30 so that the supporting effect reaches the most stable state. Then put the arc hook arm 2 through the movable hole 31, adjust the position and angle of the arc hook arm 2 relative to the otch by sliding and rotating the arc hook arm 2 in the movable hole 31, so that one end of the arc arm hook 21 is set At the upper edge of the incision that needs to be stretched and expanded, the arc-shaped hook arm fixer 32 is adjusted so that the arc-shaped hook arm 2 is stably fixed in the movable hole 31 . Finally, put the arc-shaped hook blade 11 of the porous belt hook blade 1 into the incision, and pull it up in the direction to be pulled, so that the incision is fully exposed, and hook the porous belt hook soft belt 12 of the porous belt hook blade 1. The arc arm hook 21 on one end top of the arc hook arm 2 .

When the position where the incision needs to be pulled and exposed is located on the positive head side, the above steps can be simplified as follows: first adjust the head frame fixer 4 so that the tail end of the length-adjustable universal head frame fixing pull hook is fixed on the surgical head frame on the crossbar. Then adjust the length of the adjustable arm 3 to the best, to adapt to the chest length of different human bodies, make the head end of the adjustable arm 3 be positioned at the front of the head side of the surgical incision, and adjust the support body 30 so that the supporting effect reaches the most stable state. Finally, put the arc-shaped hook blade 11 of the porous belt hook blade 1 into the incision, and pull it up along the head side direction, so that the incision is fully exposed, and hook the porous hook soft belt 12 of the porous belt hook blade 1 on a Just get final product on the hole hook 37 that adjustment arm 3 movable holes 31 fronts are provided with.

In the above embodiment, the length-adjustable universal head frame fixing hook is fixed to the cross bar of the surgical head frame through the head frame fixer 4, so as to obtain the most important supporting force. A more stable supporting force is further obtained through the support body 30 , and a fixed hook in any direction and at an appropriate height can be obtained through the cooperation of the arc-shaped hook arm 2 and the movable hole 31 . When it is necessary to pull the front side of the incision, there is no need to use the arc-shaped hook arm 2 . When the left side is needed to pull the otch, an end of the arc hook arm 2 that is not provided with the arc arm hook 21 is passed through the movable hole 31 from the left side, so that the arc hook arm 2 is provided with an end of the arc arm hook 21 positioned at the left side of the otch. Pull upwards to perform follow-up operations. When the right side is needed to be pulled, the end of the arc hook arm 2 that is not provided with the arc arm hook 21 is passed through the movable hole 31 from the right side, so that the end of the arc hook arm 2 that is provided with the arc arm hook 21 is positioned at the right side of the otch. Pull upwards to perform follow-up operations. Because one end of the arc hook arm 2 is provided with a plurality of arc arm hooks 21, the practical effect of penetrating the movable hole 31 on the left and right sides is the same. It should be noted that in the illustration, two arc-arm hooks 21 are arranged at symmetrical positions of the arc-shaped hook arm 2 , but the actual implementation is not limited to this number.

As shown in FIG. 1 and FIG. 3 , the adjustable arm 3 includes a groove half-arm 33 provided with an inner chamber and an insertion rod half-arm 34 capable of being nested in the inner chamber of the groove half-arm 33 . A length-fixing screw hole 35 is provided near the socket of the insertion rod half-arm 34 through one side of the cavity of the groove half-arm 33 , and a length-fixing bolt 36 is set to match the inner diameter of the length-fixing screw hole 35 . The inner wall of the length fixing screw hole 35 and the outer wall of the length fixing bolt 36 are provided with matching spiral lines. The length fixing bolt 36 can be sleeved in the length fixing screw hole 35 and move along the long axis of the length fixing screw hole 35 by rotation.

The cavity cross-section of the groove half-arm 33 is larger than the cross-section of the insertion rod half-arm 34, and the shape preferably matches the profile, so that the insertion rod half-arm 34 can be embedded in the cavity of the groove half-arm 33, and can be inserted along the groove. The direction of the long axis of the slot half arm 33 moves. The front and rear positional relationship between the groove half-arm 33 and the rod half-arm 34 is not fixed, and the groove half-arm 33 can be behind the front rod half-arm 34, or the groove half-arm 33 can be inserted behind the rod half-arm. 34 first. The inner cavity of the groove half-arm 33 is preferably a closed cavity, and the opening of the groove half-arm 33 cavity, that is, the entrance of the insertion rod half-arm 34, is provided with a length fixing screw hole 35, and the matching length fixing screw hole 35 is provided with a length fixing bolt 36 , the length fixing bolt 36 can helically advance or retreat along the long axis of the length fixing screw hole 35 . When it is necessary to adjust the position of the insertion rod half-arm 34 embedded in the groove half-arm 33 inner cavity, the length fixing bolt 36 is screwed outwards so that its head end is embedded in the length fixing screw hole 35, and the Embedded in the position of the plunger half-arm 34 embedded in the cavity of the groove half-arm 33 for adjustment. When the adjustment needs to temporarily fix the position of the groove half arm 33 and the insertion rod half arm 34, screw in the length fixing bolt 36 to make the head end of the length fixing bolt 36 support the insertion rod half in the groove half arm 33 cavity. The arm 34 is on the same side surface, so that the positions of the groove half-arm 33 and the insertion rod half-arm 34 are temporarily fixed. In order to increase the stability of the groove half arm 33 and the insertion rod half arm 34 when they are temporarily fixed, lines can be set on the surface of the groove half arm 33 and the insertion rod half arm 34 to increase the friction coefficient, or lines can be set on the top of the length fixing bolt 36 .

As shown in Figures 1 and 3, the arc-shaped hook arm fixer 32 includes an arc fixing screw hole 321 that runs through the side wall of the movable hole 31 and an arc fixing bolt 322 that matches the arc fixing screw hole 321. The inner wall of the hole 321 and the outer wall of the curved fixing bolt 322 are provided with matching spiral patterns. The arc fixing bolt 322 can be nested in the arc fixing screw hole 321 and move along the long axis of the arc fixing screw hole 321 by rotating.

Its fixing and loosening operation and principle of action are the same as those of the adjustable arm 3, and will not be described in detail here.

It is worth noting that, in order to increase the stability of the arc-shaped hook arm 2 nested in the movable hole 31 when it is temporarily fixed, in addition to setting lines on the outer surface of the arc-shaped hook arm 2, the inner surface of the movable hole 31 and the top of the arc-shaped fixing bolt 322 In addition to increasing the coefficient of friction, the length of the movable hole 31 can also be increased, thereby increasing the contact area between the inner surface of the movable hole 31 and the outer surface of the curved hook arm 2 during temporary fixation. In order to make the arc-shaped hook arm 2 slide freely in the longer movable hole 31, the arc-shaped hook arm 2 and the movable hole 31 can be arranged in a circular arc shape with matching diameters. At this time, the movable hole 31 is arc-shaped tubular. But the greater the length of the major axis of the movable hole 31, the smaller the range of rotation of the arc-shaped hook arm 2 in the movable hole 31; bigger. Simultaneously, the larger the difference between the diameter of the cross-section of the inner hole of the movable hole 31 and the outer diameter of the arc-shaped hook arm 2, the larger the range of rotation of the curved hook arm 2 in the movable hole 31; the cross-sectional diameter of the inner hole of the movable hole 31 and the arc shape The smaller the difference between the outer diameters of the hook arm 2 is, the smaller the range of rotation of the arc-shaped hook arm 2 in the movable hole 31 is.

As shown in Figure 1, Figure 3 and Figure 4, the support body 30 includes a support rod 301 connected with the adjustable arm 3 and a support plate 302 connected with the support rod 301, the support rod 301 and the support plate 302 are supported by Joint 303 connects. The lowermost end of the support rod 301 is provided with a half-joint 304, and the upper center of the support plate 302 is provided with a half-joint 2 305 matching the half-joint 304. For the matching joint head, the two half-joint bodies are matched and inlaid, and the angle can be changed without prolapse. The joint fixing screw hole 306 and the joint bolt 307 matching the joint fixing screw hole 306 are set through the side wall of the joint socket. The long axis of the articulation helical hole 306 moves.

The function of the support body 30 is to provide a more stable supporting force for the arc-shaped hook arm 2 installed and temporarily fixed in the movable hole 31 at the head end of the adjustable arm 3 . Specifically, the support rod 301 of the support body 30 is a support force transmission rod. The support plate 302 is a rectangular plate structure, and its long axis is firstly perpendicular to the long axis of the adjustable arm 3. When the pulling direction of the porous belt hook blade 1 is left or right, the support plate 302 of the rectangular plate structure And the fixed point of the head frame fixer 4 and the head frame crossbar forms a larger center of gravity stable area, which can provide a more stable and reliable pulling force for the porous belt hook blade 1 pulled to one side, so as not to make the adjustable arm 3 Head end dumped.

During specific implementation, the support rod 301 and the support plate 302 are connected through the support joint 303, which means that the thickness of the chest of different patients is different, and the height of the head frame cross bar is also different, so that the length of the arm 3 can be adjusted during specific implementation. The axial plane may form different angles with the plane of the patient's upper chest. When the long-axis plane of the adjustable arm 3 forms an angle with the upper plane of the patient’s chest, the support rod 301 is not perpendicular to the upper plane of the chest, forming a certain angle. The adjustment can make the support plate 302 basically fit with the upper plane of the chest under any condition, on the one hand increase the stable area of the center of gravity, on the other hand increase the stress area of the patient's chest to avoid crushing.

As shown in this illustration, the support joint 303 may be a spherical joint, that is, one of the first half joint 304 and the second half joint 305 is a hemispherical joint head, and the other is a hemispherical joint socket with a matching inner cavity.

The advantage of the spherical support joint 303 is that the adjustment direction is more diversified, but the disadvantage is also very obvious, and the stability is poor. In order to increase the stability of the spherical support joint 303, a joint fixation device is provided, that is, the joint fixation screw hole 306 and the joint bolt 307 matching the joint fixation screw hole 306 are set through the side wall of the joint socket, and the spherical support joint 303 needs to be fixed. When half-joint one 304 and half-joint two 305 are in position, it is only necessary to screw the joint bolt 307 into the joint fixing screw hole 306 so that the joint bolt 307 passes through the side wall of the joint socket so that the head end of the joint bolt 307 is supported on the joint head surface, thereby temporarily fixing the joint head and the joint socket.

When this is not the only structure, it can also be set as a cylindrical joint, that is, one of the first half joint 304 and the second half joint 305 is a joint head with a cylindrical structure, and the other is a cylindrical joint socket with a matching inner cavity. When the support joint 303 is set as a cylindrical joint, in order to meet the adjustment requirements of the present invention, the long axis of the support joint 303 of the cylindrical joint should be consistent with the long axis of the support plate 302, and at the same time the support joint 303 of the cylindrical joint The long axis should be perpendicular to the long axis of the adjustable arm 3. The adjustment direction of the support joint 303 set in this way can only be rotated around the long axis of the support joint 303 during specific adjustment, and cannot be shifted to the left or right, which reduces the occurrence of deviation to the left or right Probability, higher stability during use, more in line with the use requirements of the present invention. When the supporting joint 303 is configured as a cylindrical joint, the joint fixing mechanism can be omitted.

As shown in Figures 1 and 5, the headgear fixer 4 includes a hook 41 arranged at the tail end of the adjustable arm 3, a bolt fixing hole 42 arranged at the top of the hook 41, a threaded adjustment rod hook 43 and a hook adjustment nut. 44. The rear end of the threaded adjusting rod hook 43 is provided with a reverse hook 45 relative to the hook 41, and the head end of the threaded adjusting rod hook 43 is provided with a threaded adjusting rod 46 whose outer diameter is smaller than the inner diameter of the bolt fixing hole 42, and the threaded adjusting rod 46 can be sleeved on the The bolts slide along the long axis inside the holes 42 . The outer surface of the thread adjusting rod 46 and the inner surface of the hook adjusting nut 44 are provided with matching threads, and the hook adjusting nut 44 can move helically along the outer surface of the thread adjusting rod 46 . The outer diameter of the hook adjustment nut 44 is larger than the inner diameter of the bolt fixing hole 42 .

In practice, the length of the threaded adjusting rod 46 is greater than the length of the bolt fixing hole 42, and the threaded adjusting rod 46 of the threaded adjusting rod hook 43 is sleeved in the bolt fixing hole 42 of the protrusion at the top of the hook 41, and the hook adjusting nut 44 It is tightly nested in the tail of the threaded adjusting rod 46 that exposes the bolt fixing hole 42 . Simultaneously, the hook 41 that is arranged on adjustable arm 3 tail end and the reverse hook 45 that is arranged on thread adjusting rod hook 43 tail end are matched and used, and the direction is opposite, can form holding fixation effect to operation head frame cross bar, for further increasing fixation effect , textures can be set on the opposite surfaces of the hook 41 and the reverse hook 45 to increase the coefficient of friction. When it is necessary to fix the fixed pull hook of the adjustable universal head frame on the operation head frame cross bar, unclamp the hook adjustment nut 44 to make the openings of the hook 41 and the reverse hook 45 wide, and put the operation head frame cross bar into the The hook 41 and the reverse hook 45 that form an embracing state are embraced. Rotate the hook adjustment nut 44 to make the hook adjustment nut 44 move to the reverse hook 45 along the threaded adjustment rod 46, because the outer diameter of the hook adjustment nut 44 is greater than the bolt fixing hole 42 inner diameter, the reverse hook 45 gradually moves towards the hook 41 under the reverse force. Move closer to form a hug for the crossbar of the surgical head frame, gradually tighten it, and finally fix it. When the head frame fixer 4 needs to be loosened, the operation can be reversed.

In a word, when the present invention is applied in surgical operations, it can simply and conveniently temporarily fix the multi-angle multi-angle working state porous belt hook blade 1 on the crossbar of the surgical head frame, reducing the workload of doctors, simple in structure, convenient in use, and safe and reliable in effect. .

Claims (5)

1. A length-adjustable universal head frame fixing hook, including a multi-hole belt hook blade (1), an arc-shaped hook arm (2), an adjustable arm (3) and a head frame for temporarily fixing the head frame bar The fixer (4) is characterized in that: the lower end of the porous strip hook blade (1) is provided with an arc-shaped hook blade (11), and the upper end is provided with a porous hook soft belt (12); the arc-shaped hook arm (2) is provided with a section It is a cylindrical arc rod, one end of which is provided with several arc arm hooks (21); the head end of the adjustable arm (3) is provided with a movable hole (31) for nesting the arc hook arm (2) and An arc-shaped hook arm fixer (32) for temporarily fixing the arc-shaped hook arm (2) nested in the movable hole (31); a hole hook (37) is provided in front of the movable hole (31), and the When pulling the incision in the middle of the head side, the hook is porous with a hook blade (1); the lower part of the adjustable arm (3) is provided with a support body (30) for supporting the adjustable arm (3). 2. The length-adjustable gimbal fixing hook according to claim 1, characterized in that: the adjustable arm (3) includes a groove half-arm (33) with an inner cavity and can be nested in the groove The rod half-arm (34) of the inner cavity of the half-arm (33); a fixed length screw hole (35) is set at the socket of the rod half-arm (34) through the cavity of the half-arm (33) of the groove, and The inner diameter of the length fixing screw hole (35) is matched with the length fixing bolt (36); the inner wall of the length fixing screw hole (35) and the outer wall of the length fixing bolt (36) are provided with matching spiral lines; the length fixing bolt (36) can be nested Move along the long axis of the length fixing screw hole (35) by rotating in the length fixing screw hole (35). 3. The length-adjustable universal head frame fixing hook according to claim 1, characterized in that: the arc-shaped hook arm fixer (32) includes an arc fixing screw hole that runs through one side wall of the movable hole (31) (321) and the arc fixing bolt (322) matching the arc fixing screw hole (321), the inner wall of the arc fixing screw hole (321) and the outer wall of the arc fixing bolt (322) are provided with matching spiral lines; the arc fixing bolt (322 ) can be nested in the arc fixed screw hole (321) and move along the long axis of the arc fixed screw hole (321) through rotation. 4. The length-adjustable universal head frame fixing hook according to claim 1, characterized in that: the support body (30) includes a support rod (301) connected with the adjustable arm (3) and a support rod (301) connected with the support The support plate (302) connected by the rod (301), the support rod (301) and the support plate (302) are connected through the support joint (303); the bottom end of the support rod (301) is provided with a half joint (304), and the support plate The upper center of (302) is provided with half-joint two (305) matching half-joint one (304), one of half-joint one (304) and half-joint two (305) is a socket, and the other one is a matching joint head , the two half-joint bodies are matched and inlaid connected, and the angle can be changed without prolapse; joint fixation screw holes (306) and joint bolts (307) matching the joint fixation screw holes (306) are set through the side wall of the joint socket, The inner wall of the joint fixing screw hole (306) and the outer wall of the joint bolt (307) are provided with matching spiral lines, and the joint bolt (307) can move along the long axis of the joint fixing screw hole (306) through rotation. 5. The length-adjustable universal head frame fixing hook according to claim 1, characterized in that: the head frame fixer (4) includes a hook (41) set at the tail end of the adjustable arm (3), set on The bolt fixing hole (42) of the protrusion at the top of the hook (41), the threaded adjustment rod hook (43) and the hook adjustment nut (44); To the hook (45), the threaded adjustment rod hook (43) head end is provided with a threaded adjustment rod (46) whose outer diameter is smaller than the inner diameter of the bolt fixing hole (42), and the threaded adjustment rod (46) can be sleeved in the bolt fixing hole (42) The inner surface slides along the long axis; the outer surface of the threaded adjustment rod (46) is provided with matching threads on the inner surface of the hook adjustment nut (44), and the hook adjustment nut (44) can spirally move along the outer surface of the threaded adjustment rod (46); The outer diameter of the hook adjustment nut (44) is greater than the inner diameter of the bolt fixing hole (42).