Saw blade locking device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a saw blade locking device which comprises a reciprocating rod support, a reciprocating rod is arranged in the reciprocating rod support, a reciprocating rod body is fixedly connected to the middle of the left side of a reciprocating rod base, a plurality of evenly-distributed reciprocating rod openings are formed in the left side of the reciprocating rod body, and the reciprocating rod body is fixedly connected with a saw blade. A pin hole is formed in the top end of the left end of the middle of the reciprocating rod body, a torsional spring is arranged on the outer side of the left end of the middle of the reciprocating rod body, a plug pin is fixedly connected to the left end of the torsional spring, and a saw blade locking sleeve is fixedly connected to the left end of the reciprocating rod support. According to the utility model, through the cooperation of the reciprocating rod body, the saw blade locking sleeve, the bolt and the torsional spring, the saw blade can be quickly assembled and disassembled, meanwhile, the saw blade locking sleeve can automatically return to the original position, and through the cooperation of the threaded ring, the fixed ring, the movable rod, the push block and the spring, saw blades of different models can be clamped; and the stability and the safety of the saw blade are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a saw blade locking device. Background Art

[0002] With the continuous development of medical technology, various medical devices are being used more and more widely. Among them, saw blade locking devices, as an important medical device, are widely used in surgery. Saw blade locking devices are mainly used to lock surgical saw blades to ensure safety and stability during surgery. Traditional saw blade locking devices usually have some problems, such as complicated operation and loose locking. In order to solve these problems, the performance of the locking device can be further improved to meet the needs of the medical field for saw blade locking devices. On this basis, the locking device can also be subjected to force analysis to optimize the design and improve its safety and stability.

[0003] After searching, the Chinese patent announcement number: CN2762988Y discloses a self-locking device for a saw blade guard, including a locking block connected to a handle and a saw blade guard, the handle and the locking block are respectively fixed to the rotating shaft, and also includes a positioning plate fixed to the frame; an elastic latch is provided at the handle adjacent to the positioning plate, and the elastic latch is connected to the button on the handle; a gear position cooperating with the elastic latch is provided on the positioning plate; a reset spring is provided between the locking block and the positioning plate. Two extreme positioning blocks are also provided on the side of the positioning plate corresponding to the handle, and the positioning blocks cooperate with the handle. The utility model has high safety. When the protective cover needs to be opened, the handle button must be manually pulled to unlock it; to ensure that the locking mechanism of the saw blade guard does not fail, a reset spring is provided between the locking block and the positioning plate, and the spring restoring force drives the locking mechanism of the saw blade guard to automatically close in place, which is easy to operate; it reduces costs and ensures safety and reliability in use. However, the device is not convenient for assembling and disassembling the saw blade, and a lot of time is needed for the maintenance and replacement of the saw blade. At the same time, the device cannot be applied to saw blades of different models, which reduces the application range of the device. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a saw blade locking device, aiming to improve the problem that the device in the prior art is inconvenient for assembling and disassembling the saw blade, and a large amount of time is required for the maintenance and replacement of the saw blade. At the same time, the device cannot be applied to saw blades of different models, which reduces the scope of application of the device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a saw blade locking device, comprising a reciprocating rod bracket, a reciprocating rod is arranged inside the reciprocating rod bracket, a reciprocating rod body is fixedly connected to the middle left side of the reciprocating rod seat, a plurality of evenly distributed reciprocating rod openings are opened on the left side of the reciprocating rod body, a pin hole is opened on the top left end of the middle part of the reciprocating rod body, a torsion spring is arranged on the outer side of the middle left end of the reciprocating rod body, a pin is fixedly connected to the left end of the torsion spring, a saw blade locking sleeve is fixedly connected to the left end of the reciprocating rod bracket, a plurality of evenly distributed saw blade locking rotation grooves are opened in the middle part of the saw blade locking sleeve, a saw blade locking groove is opened at the middle left end of the saw blade locking sleeve, a saw blade is slidably connected to the inside of the saw blade locking groove, two bosses are fixedly connected to the left side of the middle part of the saw blade, and a clamping assembly is arranged at the left end of the saw blade locking sleeve.

[0006] As a further description of the above technical solution:

[0007] The clamping assembly includes a threaded ring, the outer side of the threaded ring is threadedly connected to the left end of the saw blade locking sleeve, the left end of the threaded ring is fixedly connected to a fixing ring, the adjacent sides of the inner side wall of the fixing ring are fixedly connected to a mounting box, the inner side walls of the two mounting boxes are provided with limiting grooves at the ends away from each other, springs are arranged in the two mounting boxes, sliding grooves are provided in the middle parts of the front and rear ends of the fixing ring, the middle parts of the two sliding grooves are slidably connected to movable rods, the ends of the two movable rods away from each other are fixedly connected to handles, the adjacent ends of the two movable rods are fixedly connected to push blocks, the adjacent ends of the two push blocks are fixedly connected to rubber pads, and the left and right sides of the middle parts of the two movable rods are fixedly connected to limiting blocks.

[0008] As a further description of the above technical solution:

[0009] The bottom end of the latch is slidably connected to the inside of the pin hole, and the top ends of the two bosses are slidably connected to the saw blade locking rotation groove.

[0010] As a further description of the above technical solution:

[0011] The outer sides of the two limit blocks are slidably connected to the inner side wall of the sliding groove.

[0012] As a further description of the above technical solution:

[0013] A connecting ring is fixedly connected to the left side of the reciprocating rod seat, and a sleeve is fixedly connected to the left side of the connecting ring.

[0014] As a further description of the above technical solution:

[0015] A retaining frame is arranged inside the sleeve, and a plurality of evenly distributed balls are arranged inside the retaining frame.

[0016] As a further description of the above technical solution:

[0017] A rotating ring is fixedly connected to the left side of the sleeve, and a fixed block is fixedly connected to the middle part of the inner side wall of the rotating ring.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the saw blade can be quickly assembled and disassembled through the cooperation of the reciprocating rod body, the saw blade locking sleeve and the saw blade locking groove, which greatly saves maintenance time. At the same time, through the cooperation of the latch, the torsion spring and the saw blade locking sleeve rotating groove, the saw blade locking sleeve can automatically return to its original position after the saw blade is rotated and installed, thereby fixing the saw blade.

[0020] 2. In the utility model, the clamping component can be fixed on the device through the cooperation of the threaded ring and the fixed ring. At the same time, through the cooperation of the slide groove, the movable rod, the push block, the spring and the limit groove, the movable rod can be pushed, and the push block can be fixed in the limit groove through the spring, so that the rubber pad can lock saw blades of different models, effectively ensuring the stability and safety of the saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a saw blade locking device proposed by the utility model;

[0022] Figure 2 This is a cross-sectional view of the internal structure of a saw blade locking device proposed by the utility model;

[0023] Figure 3 This is a structural disassembled diagram of a reciprocating rod body of a saw blade locking device proposed by the utility model;

[0024] Figure 4 A schematic diagram of a reciprocating rod opening of a saw blade locking device proposed by the utility model;

[0025] Figure 5 The utility model is a cross-sectional view of a threaded ring of a saw blade locking device.

[0026] Legend:

[0027] 1. Reciprocating rod bracket; 2. Reciprocating rod seat; 3. Reciprocating rod body; 4. Reciprocating rod opening; 5. Pin hole; 6. Torsion spring; 7. Latch; 8. Clamping assembly; 801. Threaded ring; 802. Fixed ring; 803. Mounting box; 804. Limiting groove; 805. Spring; 806. Slide groove; 807. Movable rod; 808. Handle; 809. Push block; 810. Rubber pad; 811. Limiting block; 9. Saw blade locking sleeve; 10. Saw blade locking rotating groove; 11. Saw blade locking groove; 12. Connecting ring; 13. Sleeve; 14. Retaining frame; 15. Ball; 16. Rotating ring; 17. Fixed block; 18. Saw blade; 19. Boss. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1 , Figure 3 and Figure 4 The utility model provides an embodiment: a saw blade locking device, including a reciprocating rod bracket 1, a reciprocating rod seat 2 is arranged inside the reciprocating rod bracket 1, a reciprocating rod body 3 is fixedly connected to the middle of the left side of the reciprocating rod seat 2, a plurality of evenly distributed reciprocating rod openings 4 are opened on the left side of the reciprocating rod body 3, a pin hole 5 is opened on the top of the left end of the middle part of the reciprocating rod body 3, a torsion spring 6 is arranged on the outer side of the left end of the middle part of the reciprocating rod body 3, a latch pin 7 is fixedly connected to the left end of the torsion spring 6, and the left end of the reciprocating rod bracket 1 is fixed A saw blade locking sleeve 9 is connected, a plurality of evenly distributed saw blade locking rotation grooves 10 are opened in the middle of the saw blade locking sleeve 9, a saw blade locking groove 11 is opened at the left end of the middle of the saw blade locking sleeve 9, a saw blade 18 is slidably connected inside the saw blade locking groove 11, two bosses 19 are fixedly connected to the left side of the middle of the saw blade 18, and a clamping assembly 8 is arranged at the left end of the saw blade locking sleeve 9; the bottom end of the latch pin 7 is slidably connected to the inside of the pin hole 5, and the top ends of the two bosses 19 are slidably connected to the saw blade locking rotation groove 10;

[0030] Specifically, a pin hole 5 is opened at the top left end of the middle part of the reciprocating rod body 3, and a torsion spring 6 is arranged on the outer side of the middle left end of the reciprocating rod body 3, and a pin 7 is fixedly connected to the left end of the torsion spring 6. The saw blade locking sleeve 9 can return to its original position after being rotated by the force of the torsion spring 6, so that the saw blade 18 can be fixed. At the same time, two bosses 19 are fixedly connected to the left side of the middle part of the saw blade 18. When the saw blade 18 is fixed, the saw blade 18 will slide into the saw blade locking groove 11, which can effectively prevent displacement during operation.

[0031] Reference Figure 2 and Figure 5 The clamping assembly 8 includes a threaded ring 801, the outer side of the threaded ring 801 is threadedly connected to the left end of the saw blade locking sleeve 9, the left end of the threaded ring 801 is fixedly connected to a fixing ring 802, the inner side wall of the fixing ring 802 is fixedly connected to an installation box 803 on the adjacent side, and the inner side walls of the two installation boxes 803 are both provided with a limiting groove 804 at one end away from each other, and the two installation boxes 803 are both provided with a spring 805, and the middle part of the front and rear ends of the fixing ring 802 is provided with a sliding groove 804. 06, the middle parts of the two slide grooves 806 are slidably connected with movable rods 807, the ends of the two movable rods 807 that are far away are fixedly connected with handles 808, the adjacent ends of the two movable rods 807 are fixedly connected with push blocks 809, the adjacent ends of the two push blocks 809 are fixedly connected with rubber pads 810, and the left and right sides of the middle parts of the two movable rods 807 are fixedly connected with limit blocks 811; the outer sides of the two limit blocks 811 are slidably connected to the inner side walls of the slide grooves 806;

[0032] Specifically, by fixing the limit blocks 811 on both sides of the middle of the two movable rods 807, and opening the slide grooves 806 in the middle of the front and rear ends of the fixed ring 802, the limit blocks 811 can slide into the installation box 803 through the slide grooves 806, and then the movable rod 807 is rotated to make the limit blocks 811 fall into the limit grooves 804. At the same time, the limit blocks 811 can be squeezed and fixed by the springs 805 arranged in the installation box 803, which can effectively prevent the limit blocks 811 from sliding out of the limit grooves 804 due to the vibration during the operation of the device, thereby causing the saw blade 18 to fall off.

[0033] Reference Figure 2 and Figure 3 A connecting ring 12 is fixedly connected to the left side of the reciprocating rod seat 2, and a sleeve 13 is fixedly connected to the left side of the connecting ring 12; a retainer 14 is arranged inside the sleeve 13, and a plurality of evenly distributed balls 15 are arranged inside the retainer 14; a rotating ring 16 is fixedly connected to the left side of the sleeve 13, and a fixed block 17 is fixedly connected to the middle of the inner side wall of the rotating ring 16;

[0034] Specifically, a retaining frame 14 is provided inside the sleeve 13, and a plurality of evenly distributed balls 15 are provided inside the retaining frame 14. The balls 15 can rotate inside the retaining frame 14, and the saw blade locking sleeve 9 can be driven to rotate by rotating the reciprocating rod bracket 1, so that the reciprocating rod opening 4 and the saw blade locking rotating groove 10 can be overlapped, making it convenient to put in and fix the saw blade 18.

[0035] Working principle: When the device needs to be used, the saw blade locking sleeve 9 is first rotated to make the saw blade locking groove 11 opened at the middle left end of the saw blade locking sleeve 9 and the multiple evenly distributed reciprocating rod openings 4 opened on the left side of the reciprocating rod body 3 overlap, and then the saw blade 18 is inserted into the saw blade locking groove 11 through the threaded ring 801 and the fixing ring 802, and then the saw blade locking sleeve 9 is loosened. At the same time, the saw blade locking sleeve 9 will return to its original position through the torsion spring 6 set on the outer side of the middle left end of the reciprocating rod body 3, and the two bosses 19 fixedly connected on the middle left side of the saw blade 18 will be locked in the saw blade locking rotation groove 10, so that the saw blade 18 can be quickly assembled. Then, push the movable rod 807 that is slidably connected in the middle of the slide groove 806, so that the limit block 811 slides in the slide groove 806 and falls into the installation box 803, and then rotate the movable rod 807 away from the handle 808 that is fixedly connected at one end, so that the limit block 811 slides into the limit groove 804. At the same time, the limit block 811 can be squeezed and fixed by the spring 805 arranged in the installation box 803, so that it can not only clamp and fix saw blades of different models, expand the application range of the device, and improve the stability and safety of the saw blade, but also effectively prevent the limit block 811 from sliding out of the limit groove 804 due to vibration during operation of the device.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A saw blade locking device, comprising a reciprocating rod support (1), characterized in that: A reciprocating rod seat (2) is arranged inside the reciprocating rod support (1), a reciprocating rod body (3) is fixedly connected to the middle of the left side of the reciprocating rod seat (2), a plurality of evenly distributed reciprocating rod openings (4) are provided on the left side of the reciprocating rod body (3), a pin hole (5) is provided at the top of the left end of the middle part of the reciprocating rod body (3), a torsion spring (6) is arranged on the outer side of the left end of the middle part of the reciprocating rod body (3), and a latch pin (7) is fixedly connected to the left end of the torsion spring (6). A saw blade locking sleeve (9) is fixedly connected to the left end of the frame (1), a plurality of evenly distributed saw blade locking rotation grooves (10) are provided in the middle of the saw blade locking sleeve (9), a saw blade locking groove (11) is provided at the left end of the middle of the saw blade locking sleeve (9), a saw blade (18) is slidably connected inside the saw blade locking groove (11), two bosses (19) are fixedly connected to the left side of the middle of the saw blade (18), and a clamping assembly (8) is provided at the left end of the saw blade locking sleeve (9).

2. A saw blade locking device according to claim 1, characterized in that: The clamping assembly (8) comprises a threaded ring (801), the outer side of the threaded ring (801) is threadedly connected to the left end of the saw blade locking sleeve (9), the left end of the threaded ring (801) is fixedly connected to a fixing ring (802), the inner side wall of the fixing ring (802) is fixedly connected to an installation box (803) on the adjacent side, the inner side walls of the two installation boxes (803) are each provided with a limiting groove (804) at one end away from the other, and the two installation boxes (803) are each provided with a spring (805), the fixing ring (801) is fixedly connected to the left end of the saw blade locking sleeve (9), and the fixing ring (802) is fixedly connected to the adjacent side walls of the fixing ring (802). 02) are provided with a slide groove (806) in the middle of the front and rear ends, and a movable rod (807) is slidably connected in the middle of the two slide grooves (806), and a handle (808) is fixedly connected to the ends of the two movable rods (807) that are away from each other, and a push block (809) is fixedly connected to the adjacent ends of the two movable rods (807), and a rubber pad (810) is fixedly connected to the adjacent ends of the two push blocks (809), and a limiting block (811) is fixedly connected to the left and right sides of the middle of the two movable rods (807).

3. A saw blade locking device according to claim 1, characterized in that: The bottom end of the latch pin (7) is slidably connected to the inside of the pin hole (5), and the top ends of the two bosses (19) are slidably connected to the saw blade locking rotation groove (10).

4. A saw blade locking device according to claim 2, characterized in that: The outer sides of the two limit blocks (811) are both slidably connected to the inner side wall of the sliding groove (806).

5. A saw blade locking device according to claim 1, characterized in that: A connecting ring (12) is fixedly connected to the left side of the reciprocating rod seat (2), and a sleeve (13) is fixedly connected to the left side of the connecting ring (12).

6. A saw blade locking device according to claim 5, characterized in that: A retaining frame (14) is arranged inside the sleeve (13), and a plurality of evenly distributed balls (15) are arranged inside the retaining frame (14).

7. A saw blade locking device according to claim 5, characterized in that: A rotating ring (16) is fixedly connected to the left side of the sleeve (13), and a fixing block (17) is fixedly connected to the middle part of the inner side wall of the rotating ring (16).

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