Stapler capable of preventing stapling

By incorporating a sealing component, a reset component, and a locking component, the problem of inconvenient replacement of the torsion spring is solved, enabling convenient replacement of the torsion spring and timely reset of the baffle. This improves the anti-stapling effect of the stapler and increases the practicality of the device.

CN223604314UActive Publication Date: 2025-11-28NINGBO DANSURE STATIONERY CO LTD
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Patent Information

Application Number
CN202423295475.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-28
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The existing technology cannot effectively solve the technical problems that torsion springs can easily cause: The existing technology cannot effectively solve the technical problem that torsion springs are not easy to replace, and every time the stapler is used, the pressure plate will push the baffle to rotate and open. At this time, the baffle will cause the torsion spring to deform. With long-term use, the elasticity of the torsion spring may decrease due to repeated deformation, thereby affecting the timely reset of the baffle and reducing the anti-stud-jamming effect.

Method used

By setting up a sealing component and a reset component, the elasticity of the torsion spring is used to promptly reset the baffle to seal the staple hole, and the torsion spring can be disassembled and replaced through a locking component, ensuring the timely reset of the baffle and preventing the staple from retracting.

Benefits of technology

This technology enables convenient replacement of the torsion spring and timely reset of the baffle, improving the anti-stapling effect of the stapler and increasing the practicality of the device.

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Abstract

The utility model relates to the technical field of staplers, and discloses an anti-staple-jamming stapler which comprises a base, a stapling disc is mounted on one side of the top end of the base, a top cover, a pressing strip and a placing strip are rotatably mounted on one side, far away from the stapling disc, of the top end of the base, and staple holes are formed in one side, close to the stapling disc, of the interior of the placing strip. The stapler capable of preventing the staples from being clamped comprises a baffle, a plurality of staple holes are formed in the baffle, an anti-clamping mechanism used for preventing the staples from being clamped is arranged on one side of the staple holes, and the anti-clamping mechanism comprises a blocking assembly and a reset assembly. The blocking assembly and the reset assembly are arranged, so that the baffle can reset in time through the elasticity of a torsional spring to block the staple holes; according to the stapler, the elastic component is arranged, so that staples which fail in binding can be better prevented from retreating into the staple holes, then the locking component is arranged, the torsional spring can be detached, a new torsional spring can be mounted, replacement is achieved, the elasticity of the torsional spring can be better guaranteed, and the baffle can be better reset in time.
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Description

TECHNICAL FIELD

[0001] The utility model relates to stapler technical field, specifically, relates to a kind of anti-stuck stapler. BACKGROUND

[0002] Stapler, also known as binding machine, is a kind of small stationery or special equipment using mechanical principle to pass through paper and bend into specific shape, so as to firmly bind together, and stapler is used, due to the different force of user hand pressing, force is too small or uneven, deviation occurs when pressing, or the paper to be bound is too thick, leading to binding failure, book nail does not penetrate paper, book nail is withdrawn along with needle groove when rebounding in upper seat needle groove due to inertia effect when hand force is released, easy to cause book nail to be stuck in needle groove ejection port, affect the continuous use of stapler, so a kind of anti-stuck stapler is needed.

[0003] The existing patent announcement No. CN221088908U is specifically a kind of anti-stuck stapler, including bottom plate, the bottom plate top surface is fixedly installed with base, the base top surface one side is fixedly installed with support, the support is rotatably connected with shaft through bearing, the shaft is rotatably connected with needle groove mechanism, pressure knife mechanism, top cover through bearing, the bottom plate and base are provided with binding mechanism, the needle groove mechanism includes movable slot, fixed base, spring one, pressing block, limit rod, spring two, nail hole, groove, baffle, fixed shaft, torsional spring, pull rod etc., the utility model is provided with needle groove mechanism, sets up baffle in nail hole, and utilizes torsional spring to exert pressure on baffle, so that baffle can block nail hole when not subjected to external force, ensure that nail hole can be blocked in time after pressing piece rebounds, so as to prevent binding failure from being pressed back into movable slot, causing nail hole to be blocked.

[0004] The above scheme has the following problems in the implementation process, the device is provided with baffle and torsional spring cooperation, so that pressing piece can block nail hole in time after rebounding, better avoid the occurrence of nail sticking, but the torsional spring of the device is inconvenient to replace, and every time the stapler is used, the pressing piece will push the baffle to rotate and open, at this time, the baffle will drive the torsional spring to deform, so that the elasticity of the torsional spring may be reduced due to repeated deformation for a long time, thereby affecting the timely resetting of the baffle, leading to the reduction of the anti-stuck effect of the device, greatly reducing the practicability of the device, therefore, we provide a kind of anti-stuck stapler to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a purpose at providing a kind of stapler of anti-stuck, solve the torsion spring of the device in prior art is inconvenient to replace, and stapler is used each time, and pressing piece will push baffle rotation and open, baffle will drive torsion spring to deform at this time, like this long-term use, the elasticity of torsion spring can possibly reduce due to multiple deformation, to affect the timely reset of baffle, cause the anti-stuck effect of the device to reduce, greatly reduce the practicality of the device problem.

[0006] The utility model provides the following technical scheme: a kind of stapler of anti-stuck, including base, the top end one side of the base is equipped with binding disc, the top end of the base is rotatably installed with top cover, pressing strip and placement strip away from binding disc side, the pressing strip is installed in the inside of top cover, the placement strip is arranged between pressing strip and base, the inside of the placement strip is provided with the pressing assembly for pushing staple, the side of pressing strip bottom end close to binding disc is connected with pressing piece, the side of the inside of placement strip close to binding disc is equipped with nail hole, the side of nail hole is provided with the anti-stuck mechanism for preventing staple, the anti-stuck mechanism includes plugging assembly and reset component, the side of the placement strip close to reset component is provided with the locking assembly for disassembling and fixed reset component.

[0007] Through the above technical scheme, by setting placement strip, it can be used to place staple.

[0008] As the preferred technical scheme, the plugging assembly includes groove, the groove is opened in the inner wall side of nail hole, the upper side of the groove is equipped with mounting rod, the surface of the mounting rod is rotatably installed with baffle, and the end of baffle away from mounting rod extends into nail hole, the reset component is arranged at the lower side of groove.

[0009] Through the above technical scheme, the baffle can be blocked to nail hole, better avoid that the stapling failure staple back to nail hole, cause stuck, affect use.

[0010] As the preferred technical scheme, the reset component includes fixed shaft, the fixed shaft is arranged in the inside of groove, the surface of the fixed shaft is sleeved with torsion spring, the two ends of the torsion spring extending out are respectively with the bottom end of baffle and the inside top end of groove, the two ends of the fixed shaft are respectively connected with plug and mounting plate, the side of the inner wall of the groove close to plug is equipped with slot, the plug is inserted in the slot, the side of the inner wall of the groove close to mounting plate is equipped with through-hole, the mounting plate is fixed in through-hole by locking assembly.

[0011] Through the above technical scheme, by setting torsion spring and baffle cooperation, it can drive baffle to reset in time.

[0012] As the preferred technical scheme of the above, the side of the fixed shaft surface close to the mounting plate is sleeved with a blocking ring, the side of the fixed shaft surface close to the plug is provided with a threaded groove, the side of the fixed shaft is screwed with a limiting sleeve through the threaded groove, and the torsional spring is arranged between the blocking ring and the limiting sleeve.

[0013] Through the above technical scheme, the torsional spring can be limited and fixed through the blocking ring and the limiting sleeve, so that the torsional spring is prevented from sliding on the fixed shaft and affecting the elasticity.

[0014] As the preferred technical scheme of the above, the locking assembly comprises a movable slot, the movable slot is arranged at the inner top end of the through hole, spring two is arranged on the upper side of the movable slot, a limiting rod is slidably arranged at the lower opening of the movable slot, the top end of the limiting rod is connected with the spring two, a limiting groove is arranged at the top end of the mounting plate, the limiting rod is inserted into the limiting groove, a pushing block is connected with the side end of the limiting rod, a guide opening is arranged on one side of the inner wall of the movable slot, and the pushing block slides in the guide opening.

[0015] Through the above technical scheme, the fixed shaft can be disassembled and assembled, so that the fixed shaft can be removed to replace the torsional spring, the elasticity of the torsional spring can be better guaranteed, the baffle can be better reset in time, and the nail jamming is prevented.

[0016] As the preferred technical scheme of the above, the pressing assembly comprises a fixed rod, the fixed rod is arranged in the inner part of the placing strip, a pressing block is slidably sleeved on the surface of the fixed rod, spring one is sleeved on the side of the surface of the fixed rod away from the nail hole, the pressing block is in abutment with the spring one, a pull rod is hingedly arranged at the top end of the pressing block, a sliding groove is arranged in the inner part of the pressing strip, and the upper side of the pull rod slides in the sliding groove.

[0017] Through the above technical scheme, the staple placed in the inner part of the placing strip can be pushed and pressed, so as to complete the loading of the staple.

[0018] As the preferred technical scheme of the above, the inner bottom end of the through hole is provided with an auxiliary groove.

[0019] Through the above technical scheme, it is more convenient to push the mounting plate in the inner part of the through hole from the auxiliary groove.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] The utility model discloses a plugging assembly and reset assembly are set up, make the baffle can be through the elasticity of torsional spring reset in time and block the nail hole, like this can better avoid the stapling failure's staple to return to the nail hole, cause the card nail, influence use, then through setting up locking assembly, make can dismantle torsional spring, install the new torsional spring, realize replacement, simple operation, like this can better guarantee the elasticity of torsional spring, make the baffle can better reset in time, realize the anti -stuck nail, greatly increased the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of a kind of anti-stuck stapler;

[0023] Figure 2 It is the sectional structure schematic diagram of a kind of anti-stuck stapler;

[0024] Figure 3 It is Figure 2 The enlarged schematic diagram of A in middle;

[0025] Figure 4 It is the side view sectional structure schematic diagram of a kind of anti-stuck stapler's placement strip Figure 1 ;

[0026] Figure 5 It is the side view sectional structure schematic diagram of a kind of anti-stuck stapler's placement strip Figure 2 ;

[0027] Figure 6 It is Figure 5 The enlarged schematic diagram of B in middle.

[0028] In the drawing: 1, base;11, binding disc;2, top cover;21, pressing strip;22, sliding groove;23, pressing piece;3, placement strip;31, nail hole;4, compression assembly;41, fixed rod;42, pressing block;43, spring one;44, pull rod;5, anti-stuck mechanism;6, plugging assembly;61, recess;62, mounting rod;63, baffle;64, through hole;65, auxiliary slot;66, insertion slot;7, reset assembly;71, fixed shaft;72, torsional spring;73, insertion block;74, mounting plate;75, limit slot;76, baffle ring;77, screw groove;78, limit sleeve;8, locking assembly;81, movable slot;82, spring two;83, limit rod;84, push block;85, guide opening. DETAILED DESCRIPTION

[0029] The technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment.

[0030] As Figures 1-4As shown, the utility model provides a technical scheme: a stapler of preventing clamping, including base 1, the top one side of base 1 is installed with binding disc 11, the top of base 1 is installed with top cover 2, press strip 21 and placing strip 3 away from binding disc 11 side, press strip 21 is installed in the inside of top cover 2, placing strip 3 is arranged between press strip 21 and base 1, the inside of placing strip 3 is provided with the pressing assembly 4 for pushing staple, the side of press strip 21 bottom end close binding disc 11 is connected with pressure piece 23, the side of placing strip 3 inside close binding disc 11 is equipped with nail hole 31, pressing assembly 4 includes fixed rod 41, fixed rod 41 is installed in the inside of placing strip 3, the surface of fixed rod 41 is slidably sleeved with pressure block 42, the side of fixed rod 41 surface away from nail hole 31 is sleeved with spring one 43, pressure block 42 and spring one 43 are in abutment, the top of pressure block 42 is hingedly installed with pull rod 44, the inside of press strip 21 is equipped with sliding slot 22, the upper side of pull rod 44 is slid in sliding slot 22, the structure makes the top cover 2 with base 1 is flat angle by pushing away top cover 2, the top cover 2 is turned over in the process, drives press strip 21 to slide pressure block 42 by pull rod 44, makes placing strip 3 keep stable under the action of spring one 43 tension, to make pressure block 42 slide in placing strip 3 away from the side of nail hole 31, so it can be placed in placing strip 3, after placing, the top cover 2 is turned over reset, to cancel the tension of pull rod 44 to pressure block 42, at this time, pressure block 42 is slid to the direction of nail hole 31 under the action of spring one 43 elasticity, to press staple in placing strip 3, complete the loading of staple.

[0031] As an embodiment in the present embodiment, as shown in Figure 3 The side of nail hole 31 is provided with anti-clamping mechanism 5 for preventing clamping, anti-clamping mechanism 5 includes plugging assembly 6 and reset assembly 7, plugging assembly 6 includes recess 61, recess 61 is equipped in the inner wall side of nail hole 31, the upper side of recess 61 is installed with mounting rod 62, mounting rod 62 is rotatably installed with baffle 63 on the surface, and the end of baffle 63 away from mounting rod 62 extends into nail hole 31, reset assembly 7 is arranged on the lower side of recess 61, the structure makes baffle 63 can block nail hole 31, better avoid the staple back into nail hole 31, cause clamping, affect use.

[0032] As an embodiment in the present embodiment, as shown in Figure 4 And Figure 5As shown, the reset assembly 7 comprises a fixed shaft 71 arranged inside the groove 61, the surface of the fixed shaft 71 is sleeved with a torsion spring 72, the two ends of the torsion spring 72 extending out are respectively abutted with the bottom end of the baffle 63 and the inner top end of the groove 61, the two ends of the fixed shaft 71 are respectively connected with an insertion block 73 and a mounting plate 74, the side of the inner wall of the groove 61 close to the insertion block 73 is provided with an insertion slot 66, the insertion block 73 is inserted in the insertion slot 66, the side of the inner wall of the groove 61 close to the mounting plate 74 is provided with a through hole 64, the mounting plate 74 is fixed in the through hole 64 through the locking assembly 8, this structure makes the locking of the locking assembly 8 be unlocked, the mounting plate 74 is pulled to drive the fixed shaft 71, the fixed shaft 71 drives the insertion block 73 to pull out from the insertion slot 66, until the fixed shaft 71 drives the torsion spring 72 to be taken out from the groove 61, and then the limiting sleeve 78 is rotated, the limiting sleeve 78 is taken off from the fixed shaft 71 through threaded rotation, so that the limiting of the torsion spring 72 can be unlocked, the old torsion spring 72 is replaced with a new torsion spring 72, so that the torsion spring 72 can be disassembled and replaced, so that the elasticity of the torsion spring 72 can be better guaranteed, the baffle 63 can be better reset in time, the pin jamming is prevented, the inner bottom end of the through hole 64 is provided with an auxiliary slot 65, so that the mounting plate 74 inside the through hole 64 is pushed from the auxiliary slot 65 more conveniently, the surface of the fixed shaft 71 close to the mounting plate 74 is sleeved with a stop ring 76, the surface of the fixed shaft 71 close to the insertion block 73 is provided with a threaded groove 77, the limiting sleeve 78 is screwed on the side of the fixed shaft 71 through the threaded groove 77, the torsion spring 72 is arranged between the stop ring 76 and the limiting sleeve 78, this structure makes the new torsion spring 72 be sleeved on the fixed shaft 71, one end of the torsion spring 72 abuts against the stop ring 76, then the limiting sleeve 78 is screwed in the fixed shaft 71 again through threads, the limiting sleeve 78 abuts against the torsion spring 72, so that the torsion spring 72 can be limited and fixed, the torsion spring 72 is prevented from sliding on the fixed shaft 71, and the elasticity is affected.

[0033] As an embodiment in the present embodiment, as Figure 5 and Figure 6As shown, the side of the placing strip 3 close to the reset assembly 7 is provided with a locking assembly 8 for disassembling and fixing the reset assembly 7, the locking assembly 8 comprises a movable slot 81 which is opened in the inner top end of the through hole 64, the upper side of the movable slot 81 is provided with a spring 82, the lower side of the movable slot 81 is slidably provided with a limiting rod 83, the top end of the limiting rod 83 is connected with the spring 82, the top end of the mounting plate 74 is provided with a limiting slot 75, the limiting rod 83 is inserted into the limiting slot 75, the side end of the limiting rod 83 is connected with a push block 84, the inner wall of the movable slot 81 is provided with a guide opening 85, the push block 84 slides in the guide opening 85, the structure makes that when the mounting plate 74 is inserted into the through hole 64 so that the auxiliary slot 65 corresponds to the limiting rod 83, the push block 84 can be loosened, the limiting rod 83 can be pushed into the limiting slot 75 by the resilience of the spring 82, so that the mounting plate 74 can be fixed, so that the fixing shaft 71 and the torsional spring 72 are fixed, the installation of the torsional spring 72 is completed, the torsional spring 72 is installed more stably, and the operation is more convenient, and the practicability of the device is greatly increased.

[0034] Working principle: when using the stapler, the base 1 is stably placed on the water platform, the top cover 2 is pulled open to make the top cover 2 and the base 1 form a flat angle, the pressing strip 21 is driven to slide the pressing block 42 by the pull rod 44 in the turning process of the top cover 2, so that the placing strip 3 is kept stable under the action of the spring 43, so that the pressing block 42 slides in the placing strip 3 to the side away from the nail hole 31, so that the staple can be placed in the placing strip 3, after the placing is completed, the top cover 2 is turned to reset, so that the pulling force of the pull rod 44 on the pressing block 42 is cancelled, at this time, the pressing block 42 slides to the nail hole 31 under the action of the spring 43, so that the staple is pressed in the placing strip 3, the loading of the staple is completed, then the paper to be bound is placed on the binding disc 11, then the top cover 2 is pressed to drive the pressing strip 21, the pressing strip 21 drives the pressing piece 23 to align the staple and press down, at this time, the staple will drive the baffle 63 to rotate and open, at the same time, the baffle 63 will drive the torsional spring 72 to deform until the staple can pass through the nail hole 31 and insert into the paper, after the both ends of the staple penetrating the paper contact the binding disc 11, the staple is bent under the extrusion of the pressing groove on the binding disc 11, the paper is fixed together by the two feet of the staple, the paper binding is realized;

[0035] After finishing the binding, loosen the top cover 2, the pressing piece 23 resets until the pressing piece 23 is out of the nail hole 31, the baffle 63 loses the pressure, the baffle 63 can reset in time through the elasticity of the torsional spring 72 and block the nail hole 31, so that it can better avoid the failure of the binding to return to the nail hole 31, causing the nail to be stuck, affecting the use, in addition, when the elasticity of the torsional spring 72 is reduced, the torsional spring 72 needs to be replaced, only need to push the push block 84 in the guide opening 85 to slide, the push block 84 drives the limiting rod 83 to pull out from the limiting slot 75 and move to the movable slot 81 to compress the spring two 82, so that the mounting plate 74 can be pushed from the auxiliary slot 65, the mounting plate 74 is pulled out from the through hole 64, then the mounting plate 74 drives the fixed shaft 71, the fixed shaft 71 drives the plug block 73 to pull out from the plug slot 66, until the fixed shaft 71 drives the torsional spring 72 to complete the removal from the recess 61, then rotate the limiting sleeve 78, through the threaded rotation, the limiting sleeve 78 is removed from the fixed shaft 71, so that the limiting of the torsional spring 72 can be released, the old torsional spring 72 is replaced by the new torsional spring 72, so that the torsional spring 72 can be disassembled and replaced, so that the elasticity of the torsional spring 72 can be better guaranteed, so that the baffle 63 can reset in time and prevent the nail from being stuck;

[0036] Finally, after the new torsional spring 72 is sleeved on the fixed shaft 71, the end of the torsional spring 72 abuts against the stop ring 76, then the limiting sleeve 78 is screwed in the fixed shaft 71 again, and the limiting sleeve 78 abuts against the torsional spring 72, so that the torsional spring 72 can be limited and fixed, avoiding the torsional spring 72 from sliding on the fixed shaft 71 and affecting the elasticity, then the fixed shaft 71 is inserted into the recess 61 from the through hole 64, so that the fixed shaft 71 drives the plug block 73 to insert into the plug slot 66, until the mounting plate 74 is inserted into the through hole 64, so that the auxiliary slot 65 corresponds to the limiting rod 83, the limiting rod 83 can be pushed into the limiting slot 75 through the elastic recovery of the spring two 82, so that the mounting plate 74 can be fixed, so that the fixed shaft 71 and the torsional spring 72 are fixed, the installation of the torsional spring 72 is completed, and at the same time, the two ends of the torsional spring 72 extending out need to abut against the bottom end of the baffle 63 and the inner top end of the recess 61 respectively when the torsional spring 72 is installed, so that the baffle 63 can be reset again.

[0037] The above embodiments are only used to illustrate the technical scheme of the utility model, not to limit it.

Claims

1. A jam-proof stapler, comprising a base (1), a stapling disc (11) is installed on one side of the top end of the base (1), a top cover (2), a pressing strip (21) and a placing strip (3) are rotatably installed on the side of the top end of the base (1) away from the stapling disc (11), characterized in that: The pressing strip (21) is installed inside the top cover (2), the placing strip (3) is arranged between the pressing strip (21) and the base (1), the inside of the placing strip (3) is provided with a pressing assembly (4) for pushing the staple, the bottom end of the pressing strip (21) is connected with a pressing piece (23) near one side of the binding disc (11), the inside of the placing strip (3) is provided with a nail hole (31) near one side of the binding disc (11), one side of the nail hole (31) is provided with an anti-stuck mechanism (5) for preventing the staple from being stuck, the anti-stuck mechanism (5) comprises a blocking assembly (6) and a reset assembly (7), and one side of the placing strip (3) near the reset assembly (7) is provided with a locking assembly (8) for disassembling and fixing the reset assembly (7).

2. A jam-proof stapler according to claim 1, wherein: The blocking assembly (6) comprises a groove (61) formed in the inner wall of the nail hole (31), an installation rod (62) is arranged on the upper side of the groove (61), a baffle (63) is rotatably arranged on the surface of the installation rod (62), and the end of the baffle (63) away from the installation rod (62) extends into the nail hole (31), and the reset assembly (7) is arranged on the lower side of the groove (61).

3. A jam-proof stapler according to claim 2, wherein: The reset assembly (7) comprises a fixed shaft (71) arranged in the groove (61), a torsional spring (72) is sleeved on the surface of the fixed shaft (71), and the two ends of the torsional spring (72) extending out are respectively in contact with the bottom end of the baffle (63) and the inner top end of the groove (61), and the two ends of the fixed shaft (71) are respectively connected with an insertion block (73) and an installation plate (74), a slot (66) is formed in the inner wall of the groove (61) near the insertion block (73), the insertion block (73) is inserted into the slot (66), a through hole (64) is formed in the inner wall of the groove (61) near the installation plate (74), and the installation plate (74) is fixed in the through hole (64) by the locking assembly (8).

4. A jam-proof stapler according to claim 3, wherein: A stop ring (76) is sleeved on the side of the surface of the fixed shaft (71) near the installation plate (74), a threaded groove (77) is formed in the side of the surface of the fixed shaft (71) near the insertion block (73), a limiting sleeve (78) is screwed on the side of the fixed shaft (71) through the threaded groove (77), and the torsional spring (72) is arranged between the stop ring (76) and the limiting sleeve (78).

5. A jam-proof stapler according to claim 3, wherein: The locking assembly (8) comprises a movable slot (81) formed in the inner top end of the through hole (64), a spring (82) is arranged on the upper side of the movable slot (81), a limiting rod (83) is slidably arranged at the opening of the lower side of the movable slot (81), the top end of the limiting rod (83) is connected with the spring (82), a limiting slot (75) is formed in the top end of the installation plate (74), the limiting rod (83) is inserted into the limiting slot (75), a pushing block (84) is connected to the side end of the limiting rod (83), a guide opening (85) is formed in the inner wall of the movable slot (81), and the pushing block (84) slides in the guide opening (85).

6. A jam-proof stapler according to claim 1, wherein: The compression assembly (4) comprises a fixed rod (41) installed inside the placing strip (3), a pressing block (42) is sleeved on the surface of the fixed rod (41), a spring (43) is sleeved on the surface of the fixed rod (41) away from the nail hole (31), the pressing block (42) is in abutment with the spring (43), a pull rod (44) is hingedly installed at the top end of the pressing block (42), the inside of the pressing strip (21) is provided with a sliding groove (22), and the upper side of the pull rod (44) slides in the sliding groove (22).

7. A jam-proof stapler according to claim 3, wherein: An auxiliary groove (65) is formed in the inside bottom end of the through hole (64).

Citation Information

Patent Citations

  • Stapler capable of preventing stapling

    CN221088908U