阅读说明：本技术 一种骨科临床手术钢板预弯装置 (Steel plate pre-bending device for orthopedic clinical operation ) 是由 陈龙 王远政 周韡 张巩 郭圣峰 李彦坤 钟传伟 于 2021-10-12 设计创作，主要内容包括：本发明涉及骨科用钢板加工设备技术领域,具体的说是一种骨科临床手术钢板预弯装置,包括底架,所述底架上安装有夹持结构,所述底架上安装有滑动结构,所述底架上安装有转动结构,所述转动结构上安装有定位结构,所述转动结构上安装有固定结构,所述转动结构上安装有伸缩结构；通过在架体上安装夹持结构,能够对不同厚度的钢板进行夹持,便于在对钢板进行预弯时根据钢板的厚度来进行调节固定,同时通过滑动结构不仅便于将钢板进行放置,还能够便于在对钢板进行预弯时精准的进行调节长度,通过在架体上安装转动结构,能够带动钢板进行旋转,对钢板进行预弯处理,还能够根据不同钢板的厚度进行夹持固定。(The invention relates to the technical field of steel plate processing equipment for orthopedics department, in particular to a steel plate pre-bending device for orthopedic clinical operation, which comprises a bottom frame, wherein a clamping structure is arranged on the bottom frame, a sliding structure is arranged on the bottom frame, a rotating structure is arranged on the bottom frame, a positioning structure is arranged on the rotating structure, a fixing structure is arranged on the rotating structure, and a telescopic structure is arranged on the rotating structure; through installing clamping structure on the support body, can carry out the centre gripping to the steel sheet of different thickness, be convenient for adjust fixedly according to the steel sheet thickness when carrying out the preflex to the steel sheet, not only be convenient for place the steel sheet through sliding construction simultaneously, can also be convenient for carry out the accurate length of adjusting when carrying out the preflex to the steel sheet, through installing rotating-structure on the support body, can drive the steel sheet and rotate, carry out the preflex to the steel sheet and handle, can also carry out the centre gripping fixedly according to different steel sheet thicknesses.)

1. The steel plate pre-bending device for the orthopedic clinical operation is characterized by comprising a bottom frame (1), wherein a clamping structure (2) is installed on the bottom frame (1), a sliding structure (3) is installed on the bottom frame (1), a rotating structure (4) is installed on the bottom frame (1), a positioning structure (5) is installed on the rotating structure (4), a fixing structure (6) is installed on the rotating structure (4), and a telescopic structure (7) is installed on the rotating structure (4);

clamping structure (2) include grip slipper (201), sliding connection has grip slipper (201) on chassis (1), grip slipper (201) are rotated through first spacing ring (203) and are connected with first lead screw (202), fixedly connected with splint (204) on first lead screw (202), equal fixedly connected with protection pad (205) on grip slipper (201) and splint (204).

2. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: the bottom end of the clamping seat (201) is rotatably connected with a first ball (206), the first ball (206) rolls on the bottom frame (1), the bottom end of the clamping seat (201) is fixedly connected with a first sliding block (207), the first sliding block (207) is slidably connected with the bottom frame (1), and the first sliding block (207) is rotatably connected with a roller (208).

3. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: fixedly connected with stopper (209) on splint (204), be equipped with spacing groove (210) on holder (201), stopper (209) and spacing groove (210) sliding connection.

4. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: sliding construction (3) include second lead screw (301), chassis (1) internal rotation is connected with second lead screw (301), sliding connection has screw block (302) in chassis (1), screw block (302) and second lead screw (301) threaded connection, fixedly connected with connecting block (303) on screw block (302), fixedly connected with connecting rod (304) on connecting block (303), connecting rod (304) and centre gripping seat (201) fixed connection.

5. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 4, wherein: the chassis (1) is fixedly connected with a first graduated scale (305), and the connecting block (303) is fixedly connected with a first pointer (306).

6. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: rotating-structure (4) are including fixing base (401), fixedly connected with fixing base (401) is gone up in chassis (1), the solid fixed ring of fixedly connected with (402) is gone up in fixing base (401), gu fixed ring (402) internal rotation is connected with fixed axle (403), fixed axle (403) and solid fixed ring (402) junction rotate and are connected with second ball (404), the first stationary blade of fixedly connected with (406) is gone up in fixed axle (403), it is connected with third lead screw (407) to rotate on first stationary blade (406), sliding connection has two grip blocks (409) in fixed axle (403), two grip block (409) all with third lead screw (407) threaded connection, the equal fixedly connected with second spacing ring (408) in third lead screw (407) both ends, fixedly connected with pull rod (405) is gone up in fixed axle (403).

7. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 6, wherein: location structure (5) include second scale (501), gu fixed ring (402) go up fixedly connected with second scale (501), fixedly connected with second pointer (502) on fixed axle (403).

8. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 7, wherein: a second sliding block (503) is connected in the fixing ring (402) in a sliding mode, a positioning rod (504) is fixedly connected to the second sliding block (503), and the positioning rod (504) is abutted to the second pointer (502).

9. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 6, wherein: fixed knot constructs (6) and includes first latch (601), fixedly connected with first latch (601) on fixed axle (403), sliding connection has third slider (602) in fixing base (401), fixedly connected with second latch (603) on third slider (602), first latch (601) and second latch (603) block, fixedly connected with spring (604) between third slider (602) and fixing base (401), fixedly connected with push rod (605) on third slider (602).

10. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 6, wherein: the telescopic structure (7) comprises a telescopic rod (701), a telescopic rod (701) is connected to the inside of the pull rod (405) in a sliding mode, a fixing rod (702) is fixedly connected to the telescopic rod (701), the fixing rod (702) is connected with the pull rod (405) in a threaded mode, a non-slip mat (703) is fixedly connected to the fixing rod (702), a first fixing plate (704) is fixedly connected to the pull rod (405), a second fixing plate (705) is connected to the first fixing plate (704) in a rotating mode, and a second fixing plate (706) is fixedly connected to the first fixing plate (704) and the second fixing plate (705).

Technical Field

The invention relates to the technical field of steel plate processing equipment for orthopedics, in particular to a steel plate pre-bending device for clinical orthopedic surgery.

Background

Fracture refers to complete or partial fracture of a bone or a structure of the bone, in a clinical operation of fracture, a steel plate is needed to be used for positioning a fractured bone, and steel plates with different shapes are adopted according to different requirements of the fractured position, so that the steel plate needs to be pre-bent to ensure that the fractured position is better positioned and protected.

However, generally when the steel plate needs to be pre-bent in an orthopedic clinical operation, most of the steel plates are clamped by two fixing plates, and then the pre-bending treatment is performed on the steel plate by the fixing plates, but when the steel plate needs to be pre-bent in a rotating manner, the bending degree is easily caused to be too large due to too large force applied to the hand, so that the rotating angle of the steel plate cannot be ensured, the length of the steel plate cannot be accurately adjusted when the pre-bending treatment is performed, if the steel plate is not fixed and treated in time after the steel plate is rotated, the rotating angle of the steel plate and the required angle are easily caused to have errors, and the operation quality and the operation efficiency are not only influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a steel plate pre-bending device for orthopedic clinical operation.

The technical scheme adopted by the invention for solving the technical problems is as follows: the steel plate pre-bending device for the orthopedic clinical operation comprises a bottom frame, wherein a clamping structure is arranged on the bottom frame, a sliding structure is arranged on the bottom frame, a rotating structure is arranged on the bottom frame, a positioning structure is arranged on the rotating structure, a fixing structure is arranged on the rotating structure, and a telescopic structure is arranged on the rotating structure;

the clamping structure comprises a clamping seat, the chassis is connected with the clamping seat in a sliding mode, the clamping seat is connected with a first lead screw through a first limiting ring in a rotating mode, a clamping plate is fixedly connected onto the first lead screw, and a protective pad is fixedly connected onto the clamping seat and the clamping plate.

Specifically, the bottom end of the clamping seat is rotatably connected with a first ball, the first ball rolls on the bottom frame, the bottom end of the clamping seat is fixedly connected with a first sliding block, the first sliding block is connected with the bottom frame in a sliding mode, and the first sliding block is rotatably connected with a roller.

Specifically, fixedly connected with stopper on the splint, be equipped with the spacing groove on the grip slipper, stopper and spacing groove sliding connection.

Specifically, the sliding structure comprises a second lead screw, the second lead screw is connected to the inner rotation of the bottom frame, a thread block is connected to the inner rotation of the bottom frame in a sliding mode, the thread block is in threaded connection with the second lead screw, a connecting block is fixedly connected to the thread block, a connecting rod is fixedly connected to the connecting block, and the connecting rod is fixedly connected with the clamping seat.

Specifically, a first graduated scale is fixedly connected to the bottom frame, and a first pointer is fixedly connected to the connecting block.

The rotating structure comprises a fixed base, a fixed base is fixedly connected to the underframe, a fixed ring is fixedly connected to the fixed base, a fixed shaft is connected to the fixed ring in a rotating mode, a second ball is connected to the joint of the fixed shaft and the fixed ring in a rotating mode, a first fixed plate is fixedly connected to the fixed shaft, a third screw rod is connected to the first fixed plate in a rotating mode, two clamping plates are connected to the fixed shaft in a sliding mode and are connected with the third screw rod in a threaded mode, a second limiting ring is fixedly connected to the two ends of the third screw rod, and a pull rod is fixedly connected to the fixed shaft.

Specifically, location structure includes the second scale, gu fixed ring goes up fixedly connected with second scale, fixedly connected with second pointer on the fixed axle.

Concretely, gu sliding connection has the second slider in the fixed ring, fixedly connected with locating lever on the second slider, just locating lever and second pointer are contradicted.

Specifically, fixed knot constructs including first latch, the first latch of fixedly connected with on the fixed axle, sliding connection has the third slider in the fixing base, fixedly connected with second latch on the third slider, first latch and second latch block, fixedly connected with spring between third slider and the fixing base, fixedly connected with push rod on the third slider.

Specifically, extending structure includes the telescopic link, sliding connection has the telescopic link in the pull rod, fixedly connected with dead lever on the telescopic link, dead lever and pull rod threaded connection, fixedly connected with slipmat on the dead lever, the first fixed plate of fixedly connected with on the pull rod, it is connected with the second fixed plate to rotate on the first fixed plate, fixedly connected with second stationary blade on first fixed plate and the second fixed plate.

The invention has the beneficial effects that:

(1) the steel plate pre-bending device for orthopedic clinical operation can clamp steel plates with different thicknesses by installing the clamping structure on the frame body, is convenient to adjust and fix according to the thickness of the steel plate when the steel plate is pre-bent, is convenient to place the steel plate by the sliding structure, and can accurately adjust the length when the steel plate is pre-bent, namely when the steel plate is required to be pre-bent, the first screw rod which is rotationally connected with the clamping seat through the first limiting ring rotates, and the clamping plate can be driven to slide by the rotation of the first screw rod because the first screw rod is in threaded connection with the clamping plate, the first screw rod can be prevented from sliding out of the clamping seat through the rotation of the first limiting ring in the clamping seat, and the steel plate can be protected and prevented from being damaged by the clamping seat and the clamping plate because the protective pads are arranged on the clamping seat and the clamping plate, because the clamping seat is connected with the underframe in a sliding way, and the first ball is rotationally connected between the clamping seat and the underframe, the clamping seat can slide more laborsavingly, the clamping seat can be prevented from inclining when sliding through the sliding connection of the first sliding block fixed at the bottom end of the clamping seat and the underframe, the friction between the first sliding block and the underframe can be reduced through the roller rotating in the first sliding block, the clamping seat can be prevented from inclining when sliding through the sliding connection of the limiting block fixed on the clamping plate and the limiting groove on the clamping seat, the clamping plate can be prevented from sliding out of the clamping seat, the second screw rod connected with the underframe in a rotating way is rotated, the threaded block sliding in the underframe is in threaded connection with the second screw rod, so that the threaded block can be driven to slide back and forth, the clamping seat is driven to slide back and forth through the connecting block and the connecting rod, and through the first scale fixed on the underframe and the first pointer fixed on the connecting block, the position of the steel plate can be accurately adjusted.

(2) The steel plate pre-bending device for the orthopedic clinical operation can drive the steel plate to rotate and pre-bend the steel plate by installing the rotating structure on the frame body, can also carry out clamping and fixing according to the thickness of different steel plates, can ensure that the rotating angle of the steel plate is suitable for patients to use by matching with the positioning structure, and prevents the overlarge rotating angle from influencing the operation efficiency, namely, because the fixed seat is fixed on the underframe, and the fixed shaft rotates in the fixed ring fixed on the fixed seat, then the third screw rod is rotated, because the third screw rod is rotatably connected with the first fixed plate, and the second limit rings are fixed at the two ends of the third screw rod, the third screw rod can be prevented from sliding out of the first fixed plate when rotating, because the clamping plate is slidably connected in the fixed shaft, and the clamping plate is in threaded connection with the third screw rod, the third screw rod is rotated to drive the clamping plate to slide to clamp and fix the steel plate, then promote the pull rod and drive the fixed axle and rotate, because it has the second ball to rotate at fixed axle and solid fixed ring junction, consequently, can be convenient for rotate the fixed axle, because be fixed with the second scale on solid fixed ring, be fixed with the second pointer on the fixed axle, consequently, can adjust the angle that the steel sheet needs to rotate through second scale and second pointer, owing to slide in solid fixed ring has the second slider, be fixed with the locating lever on the second slider, thereby conflict through second pointer and locating lever, can prevent steel sheet rotation angle too big better.

(3) The steel plate pre-bending device for orthopedic clinical operation can fix the rotating steel plate after pre-bending the steel plate by installing the fixing structure on the rotating structure, prevent the error of the rotating angle caused by the elastic retraction of the steel plate, and simultaneously facilitate the rotation of the steel plate by the telescopic structure, namely after the steel plate is rotated to drive a fixed angle, because the first latch is fixed on the fixed shaft and the second latch is fixed on the third slider sliding in the fixed seat, the fixed shaft can be prevented from automatically rotating by the clamping of the first latch and the second latch, so that the steel plate can be kept still at the fixed rotating position for a period of time, the error of the rotating angle of the steel plate is avoided, and the clamping of the first latch and the second latch is firmer by the elastic force of the spring fixed between the third slider and the fixed seat, when the steel plate needs to be taken out, the push rod is pushed to drive the third slide block to slide, so that the second latch can be driven to slide, the first latch and the second latch are not clamped any more, the steel plate can be taken out, because the telescopic rod slides in the pull rod, the length of the pull rod can be adjusted by stretching the telescopic rod back and forth, the fixed shaft can be driven to rotate in a labor-saving manner, because the fixed rod is fixed on the telescopic rod and is in threaded connection with the pull rod, the pull rod can be driven to rotate and can be prevented from automatically sliding out of the pull rod, the hand sliding when the pull rod is pushed can be prevented through the anti-sliding pad fixed on the fixed rod, because the first fixed plate is fixed on the underframe and is in collision with the pull rod, the second fixed plate is rotatably connected on the first fixed plate, and the first fixed plate and the second fixed plate are fixed through the second fixed plate, the fixed shaft can be prevented from automatically rotating when placed.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic overall structure diagram of a preferred embodiment of a steel plate pre-bending device for orthopedic clinical operation according to the present invention;

FIG. 2 is an enlarged view of the part A shown in FIG. 1;

FIG. 3 is an enlarged view of the structure of the portion B shown in FIG. 2;

FIG. 4 is an enlarged view of the structure of the portion C shown in FIG. 1;

FIG. 5 is a schematic view of a connecting structure of the base frame and the clamping seat of the present invention;

FIG. 6 is a schematic view showing a coupling structure of the fixing ring and the fixing shaft according to the present invention;

FIG. 7 is an enlarged view of the structure of the portion D shown in FIG. 6;

FIG. 8 is a schematic view of a connection structure of a first latch and a second latch of the present invention;

fig. 9 is a schematic view of a connection structure of a third lead screw and a second limit ring according to the present invention.

In the figure: 1. a chassis; 2. a clamping structure; 201. a clamping seat; 202. a first lead screw; 203. a first limit ring; 204. a splint; 205. a protective pad; 206. a first ball bearing; 207. a first slider; 208. a roller; 209. a limiting block; 210. a limiting groove; 3. a sliding structure; 301. a second lead screw; 302. a thread block; 303. connecting blocks; 304. a connecting rod; 305. a first scale; 306. a first pointer; 4. a rotating structure; 401. a fixed seat; 402. a fixing ring; 403. a fixed shaft; 404. a second ball bearing; 405. a pull rod; 406. a first fixing sheet; 407. a third screw rod; 408. a second stop collar; 409. a clamping plate; 5. a positioning structure; 501. a second scale; 502. a second pointer; 503. a second slider; 504. positioning a rod; 6. a fixed structure; 601. a first latch; 602. a third slider; 603. a second latch; 604. a spring; 605. a push rod; 7. a telescopic structure; 701. a telescopic rod; 702. fixing the rod; 703. a non-slip mat; 704. a first fixing plate; 705. a second fixing plate; 706. a second fixing sheet.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 9, the steel plate pre-bending device for orthopedic clinical operation according to the present invention includes a chassis 1, a clamping structure 2 is installed on the chassis 1, a sliding structure 3 is installed on the chassis 1, a rotating structure 4 is installed on the chassis 1, a positioning structure 5 is installed on the rotating structure 4, a fixing structure 6 is installed on the rotating structure 4, and a telescopic structure 7 is installed on the rotating structure 4;

the clamping structure 2 comprises a clamping seat 201, the base frame 1 is connected with the clamping seat 201 in a sliding manner, the clamping seat 201 is connected with a first lead screw 202 through a first limiting ring 203 in a rotating manner, the first lead screw 202 is fixedly connected with a clamping plate 204, the clamping seat 201 and the clamping plate 204 are both fixedly connected with a protective pad 205, the bottom end of the clamping seat 201 is connected with a first ball 206 in a rotating manner, the first ball 206 rolls on the base frame 1, the bottom end of the clamping seat 201 is fixedly connected with a first sliding block 207, the first sliding block 207 is connected with the base frame 1 in a sliding manner, the first sliding block 207 is connected with a roller 208 in a rotating manner, the clamping plate 204 is fixedly connected with a limiting block 209, the clamping seat 201 is provided with a limiting groove 210, the limiting block 209 is connected with the limiting groove 210 in a sliding manner, when a steel plate needs to be pre-bent, the first lead screw 202 which is connected with the clamping seat 201 through the first limiting ring 203 is rotated, because the first screw rod 202 is in threaded connection with the clamping plate 204, the first screw rod 202 can drive the clamping plate 204 to slide, the first screw rod 202 can be prevented from sliding out of the clamping seat 201 by the rotation of the first limit ring 203 in the clamping seat 201, the steel plate can be protected by the protection pad 205 arranged on the clamping seat 201 and the clamping plate 204, and the steel plate can be prevented from being damaged by the clamping seat 201 and the clamping plate 204, because the clamping seat 201 is in sliding connection with the chassis 1, and the first ball 206 is rotatably connected between the clamping seat 201 and the chassis 1, the clamping seat 201 can slide more easily, the clamping seat 201 can be prevented from inclining during sliding by the sliding connection of the first sliding block 207 fixed at the bottom end of the clamping seat 201 and the chassis 1, the friction between the first sliding block 207 and the chassis 1 can be reduced by the roller 208 rotating in the first sliding block 207, and the limit groove 210 on the clamping seat 201 are in sliding connection by the limit block 209 fixed on the clamping plate 204, not only can the clamp plate 204 be prevented from inclining when sliding, but also the clamp plate 204 can be prevented from sliding out of the holder 201.

Specifically, the sliding structure 3 includes a second lead screw 301, the second lead screw 301 is rotatably connected to the bottom frame 1, a thread block 302 is slidably connected to the bottom frame 1, the thread block 302 is in threaded connection with the second lead screw 301, a connecting block 303 is fixedly connected to the thread block 302, a connecting rod 304 is fixedly connected to the connecting block 303, the connecting rod 304 is fixedly connected to the clamping seat 201, a first scale 305 is fixedly connected to the bottom frame 1, a first pointer 306 is fixedly connected to the connecting block 303, and the second lead screw 301 rotatably connected to the bottom frame 1 is rotated, because the thread block 302 sliding in the bottom frame 1 is in threaded connection with the second lead screw 301, the thread block 302 can be driven to slide back and forth, so that the clamping seat 201 is driven to slide back and forth through the connecting block 303 and the connecting rod 304, and through the first scale 305 fixed to the bottom frame 1 and the first pointer 306 fixed to the connecting block 303, the position of the steel plate can be accurately adjusted.

Specifically, the rotating structure 4 includes a fixing seat 401, the fixing seat 401 is fixedly connected to the chassis 1, the fixing seat 401 is fixedly connected to a fixing ring 402, the fixing ring 402 is rotatably connected to the fixing ring 402, a fixing shaft 403 is rotatably connected to the fixing ring 402, a second ball 404 is rotatably connected to a joint of the fixing shaft 403 and the fixing ring 402, a first fixing plate 406 is fixedly connected to the fixing shaft 403, a third lead screw 407 is rotatably connected to the first fixing plate 406, two clamping plates 409 are slidably connected to the fixing shaft 403, the two clamping plates 409 are both in threaded connection with the third lead screw 407, two ends of the third lead screw 407 are both fixedly connected to a second limit ring 408, a pull rod 405 is fixedly connected to the fixing shaft 403, since the fixing seat 401 is fixed to the chassis 1, and the fixing shaft 403 rotates in the fixing ring 402 fixed to the fixing seat 401, and then the third lead screw 407 is rotated, because the third screw rod 407 is rotatably connected with the first fixing plate 406, and the two ends of the third screw rod 407 are fixed with the second limiting rings 408, the third screw rod 407 can be prevented from sliding out of the first fixing plate 406 when rotating, because the clamping plate 409 is slidably connected with the fixing shaft 403, and the clamping plate 409 is in threaded connection with the third screw rod 407, the third screw rod 407 is rotated to drive the clamping plate 409 to slide to clamp and fix the steel plate, and then the pull rod 405 is pushed to drive the fixing shaft 403 to rotate, and because the second ball 404 is rotated at the joint of the fixing shaft 403 and the fixing ring 402, the fixing shaft 403 can be conveniently rotated.

Specifically, location structure 5 includes second scale 501, fixedly connected with second scale 501 on the solid fixed ring 402, fixedly connected with second pointer 502 on the fixed axle 403, gu sliding connection has second slider 503 in the fixed ring 402, fixedly connected with locating lever 504 on the second slider 503, just locating lever 504 and second pointer 502 conflict, owing to be fixed with second scale 501 on solid fixed ring 402, be fixed with second pointer 502 on fixed axle 403, consequently can adjust the angle that the steel sheet needs to rotate through second scale 501 and second pointer 502, owing to slide in solid fixed ring 402 has second slider 503, is fixed with locating lever 504 on the second slider 503 to conflict through second pointer 502 and locating lever 504, can prevent the steel sheet rotation angle too big better.

Specifically, the fixing structure 6 includes a first latch 601, the fixed shaft 403 is fixedly connected with the first latch 601, the fixed base 401 is slidably connected with a third slider 602, the third slider 602 is fixedly connected with a second latch 603, the first latch 601 is engaged with the second latch 603, a spring 604 is fixedly connected between the third slider 602 and the fixed base 401, the third slider 602 is fixedly connected with a push rod 605, after the steel plate is rotated to drive a fixed angle, because the first latch 601 is fixed on the fixed shaft 403 and the second latch 603 is fixed on the third slider 602 which is slidably arranged in the fixed base 401, the fixed shaft 403 can be prevented from automatically rotating by the engagement of the first latch 601 and the second latch 603, so that the steel plate can be kept at the fixed rotating position for a period of time, and the error of the steel plate can be avoided, and by the elastic force of the spring 604 fixed between the third slider 602 and the fixed base 401, can make first latch 601 and second latch 603 block more firm, promote push rod 605 and drive third slider 602 and slide when needs take out the steel sheet to can drive second latch 603 and slide, make first latch 601 and second latch 603 no longer block, consequently can take out the steel sheet.

Specifically, the telescopic structure 7 includes a telescopic rod 701, a telescopic rod 701 is slidably connected to the draw rod 405, a fixing rod 702 is fixedly connected to the telescopic rod 701, the fixing rod 702 is connected to the draw rod 405 through a thread, a non-slip mat 703 is fixedly connected to the fixing rod 702, a first fixing plate 704 is fixedly connected to the draw rod 405, a second fixing plate 705 is rotatably connected to the first fixing plate 704, and a second fixing plate 706 is fixedly connected to the first fixing plate 704 and the second fixing plate 705, so that the telescopic rod 701 is slidably connected to the draw rod 405, the length of the draw rod 405 can be adjusted by stretching the telescopic rod 701 back and forth, the fixing shaft 403 can be driven to rotate more laborsavingly, the fixing rod 702 is fixedly connected to the telescopic rod 701, and the fixing rod 702 is in threaded connection with the draw rod 405, so that the draw rod 405 can be driven to rotate and the telescopic rod 701 can be prevented from automatically sliding out of the draw rod 405, can prevent through fixing the slipmat 703 on the dead lever 702 that the hand slides when pushing pull rod 405, owing to be fixed with first fixed plate 704 on chassis 1, and first fixed plate 704 contradicts with pull rod 405, rotate on the first fixed plate 704 and be connected with second fixed plate 705, and first fixed plate 704 and second fixed plate 705 are fixed through second stationary blade 706, can prevent that fixed axle 403 from autogiration when placing.

When the steel plate pre-bending device is used, when a steel plate needs to be pre-bent, the first screw rod 202 which is rotatably connected with the clamping seat 201 through the first limiting ring 203 rotates, the first screw rod 202 is in threaded connection with the clamping plate 204, the first screw rod 202 rotates to drive the clamping plate 204 to slide, the first screw rod 202 can be prevented from sliding out of the clamping seat 201 through rotation of the first limiting ring 203 in the clamping seat 201, the steel plate can be protected due to the fact that the clamping seat 201 and the clamping plate 204 are both provided with the protective pads 205, the steel plate can be prevented from being damaged by the clamping seat 201 and the clamping plate 204, the clamping seat 201 can slide more labor-saving due to the fact that the clamping seat 201 is in sliding connection with the chassis 1, and the first ball 206 is rotatably connected between the clamping seat 201 and the chassis 1, the clamping seat 201 can be prevented from inclining during sliding through the sliding connection of the first sliding block 207 fixed at the bottom end of the clamping seat 201 and the chassis 1, the friction between the first slider 207 and the chassis 1 can be reduced by the roller 208 rotating in the first slider 207, the limit block 209 fixed on the clamp plate 204 is slidably connected with the limit groove 210 on the clamp seat 201, so that not only can the clamp plate 204 be prevented from inclining when sliding, but also the clamp plate 204 can be prevented from sliding out of the clamp seat 201, the second lead screw 301 rotatably connected with the chassis 1 is rotated, the threaded block 302 sliding back and forth can be driven to slide back and forth by the threaded connection between the threaded block 302 and the second lead screw 301 sliding in the chassis 1, so that the clamp seat 201 is driven to slide back and forth by the connecting block 303 and the connecting rod 304, the position of the steel plate can be accurately adjusted by the first graduated scale 305 fixed on the chassis 1 and the first pointer 306 fixed on the connecting block 303, the fixing seat 401 is fixed on the chassis 1, and the fixing shaft 403 rotates in the fixing ring 402 fixed on the fixing seat 401, then the third screw rod 407 is rotated, because the third screw rod 407 is rotatably connected with the first fixing plate 406, and the two ends of the third screw rod 407 are fixed with the second limiting rings 408, the third screw rod 407 can be prevented from sliding out of the first fixing plate 406 when rotating, because the clamping plate 409 is slidably connected with the fixing shaft 403, and the clamping plate 409 is in threaded connection with the third screw rod 407, the third screw rod 407 is rotated to drive the clamping plate 409 to slide to clamp and fix the steel plate, then the pull rod 405 is pushed to drive the fixing shaft 403 to rotate, because the second ball 404 is rotated at the connection part of the fixing shaft 403 and the fixing ring 402, the fixing shaft 403 can be conveniently rotated, because the second scale 501 is fixed on the fixing ring 402, the second pointer 502 is fixed on the fixing shaft 403, the angle of the steel plate which needs to be rotated can be adjusted through the second scale 501 and the second pointer 502, because the second slide block 503 is slid in the fixing ring 402, the positioning rod 504 is fixed on the second sliding block 503, so that the second pointer 502 is abutted against the positioning rod 504, and the rotation angle of the steel plate can be better prevented from being too large, after the steel plate is rotated to drive the fixed angle, because the first latch 601 is fixed on the fixed shaft 403, and the second latch 603 is fixed on the third sliding block 602 sliding in the fixed seat 401, the fixed shaft 403 can be prevented from automatically rotating by the engagement of the first latch 601 and the second latch 603, so that the steel plate can be kept stationary for a period of time at the fixed rotation position, and the error of the rotation angle of the steel plate can be avoided, the first latch 601 and the second latch 603 can be more firmly engaged by the elastic force of the spring 604 fixed between the third sliding block 602 and the fixed seat 401, when the steel plate needs to be taken out, the push rod 605 is pushed to drive the third sliding block 602 to slide, so that the second latch 603 can be driven, and the first latch 601 and the second latch 603 are not engaged any more, therefore, the steel plate can be taken out, the telescopic rod 701 slides in the pull rod 405, the length of the pull rod 405 can be adjusted by stretching the telescopic rod 701 back and forth, the fixing shaft 403 can be driven to rotate in a labor-saving manner, the fixing rod 702 is fixed on the telescopic rod 701, the fixing rod 702 is in threaded connection with the pull rod 405, the pull rod 405 can be driven to rotate, the telescopic rod 701 can be prevented from automatically sliding out of the pull rod 405, hand sliding when the pull rod 405 is pushed can be prevented through the anti-sliding pad 703 fixed on the fixing rod 702, the first fixing plate 704 is fixed on the chassis 1, the first fixing plate 704 is in conflict with the pull rod 405, the second fixing plate 705 is rotatably connected to the first fixing plate 704, the first fixing plate 704 and the second fixing plate 705 are fixed through the second fixing plate 706, and automatic rotation of the fixing shaft 403 when the fixing shaft is placed can be prevented.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.