Labor-saving stapler

Abstract

A labor-saving stapler comprises a support base, a staple channel, an upper blade assembly, a hinge and an upper cover, the tail ends of the staple channel, the upper blade assembly and the upper cover are all hinged to the tail end of the support base, the upper blade assembly is arranged on the outer side of the staple channel, and the hinge and the upper cover are both arranged on the outer side of the upper blade assembly. The hinge is located on the front side of the tail end of the upper cover, the middle of the hinge is hinged to the upper blade assembly, and a first guide part is arranged between the tail end of the hinge and the tail end of the upper cover and is of a gear meshing structure. The gear meshing structure is arranged to be a structure which enables the tail end of the hinge to move towards the tail end of the upper cover and press downwards when the upper cover is pressed downwards. The structure of the first guide part of the labor-saving stapler is simplified, so that the width of the whole product is reduced, the appearance is simple, and the labor-saving stapler is more convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of staplers, in particular to a labor-saving stapler. Background Art

[0002] At present, there is a labor-saving stapler that achieves a certain labor-saving effect through the lever principle. For example, a labor-saving stapler disclosed in the Chinese invention patent with the authorization announcement number CN105328641B has a structure as follows: Figure 1 As shown, it includes a bracket seat 1a, a nail channel 2a, an upper blade assembly 3a, a hinge 4a and an upper cover 5a, and the rear ends of the nail channel 2a, the upper blade assembly 3a and the upper cover 5a are all hinged to the rear end of the bracket seat 1a; a first guide portion is arranged on the two side walls of the upper cover 5a, one end of the hinge 4a is slidably connected to the first guide portion, and the first guide portion is arranged to enable one end of the hinge 4a to move toward the rear end of the upper cover 5a and press downward when the upper cover 5a is pressed downward, a second guide portion is arranged on the side wall of the bracket seat 1a, and the other end of the hinge 4a is slidably connected to the second guide portion. On the guide portion, the second guide portion is configured to enable the other end of the hinge 4a to move toward the front end of the bracket seat 1a when the upper cover 5a is pressed down, and to enable the other end of the hinge 4a to be separated from the bracket seat 1a when the upper cover 5a is opened, and the middle part of the hinge 4a is hinged to the upper blade assembly 3a; the first guide portion includes a first slide groove 6a arranged on the upper cover 5a and a first axis 7a arranged at the rear end of the hinge 4a, and the second guide portion includes a second slide groove 8a opened backwards and arranged on the bracket seat 1a, and a second axis 9a arranged at the front end of the hinge 4a. When the labor-saving stapler is in use, when the upper cover 5a is pressed down, the second shaft 9a at the front end of the hinge 4a can move toward the front of the bracket seat 1a and enter the second slide groove 8a, and at the same time, the first shaft 7a at the rear end of the hinge 4a moves in the first slide groove 6a of the upper cover 5a toward the tail of the upper cover 5a, and the upper cover 5a presses down the upper blade assembly 3a through the hinge 4a, and presses out the staples in the nail channel 2a to complete the stapling action; when the upper cover 5a is pressed down, the first shaft 7a in the first slide groove 6a moves quickly to the tail end of the upper cover 5a, so that the resistance arm is reduced when the upper cover 5a is pressed down, so that the more the upper cover 5a is pressed down, the better the labor-saving effect.

[0003] However, the existing labor-saving stapler still has the following technical problems: the first guide part not only has a relatively complex structure, resulting in a larger overall width of the product and an unsophisticated appearance, but also the first guide part sets the hinge 4a on the inner side of the upper cover 5a and requires the first axis 7a of the hinge 4a to be installed in the first slide groove 6a of the upper cover 5a, which is not very convenient to install. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a labor-saving stapler with a simplified structure of a first guide part, thereby reducing the width of the overall product, having a simple appearance, and being more convenient to install.

[0005] The technical solution of the utility model is: a labor-saving stapler, comprising a bracket seat, a nail channel, an upper blade assembly, a hinge and an upper cover, the tail ends of the nail channel, the upper blade assembly and the upper cover are all hinged at the tail end of the bracket seat, the upper blade assembly is arranged on the outside of the nail channel, the hinge and the upper cover are both arranged on the outside of the upper blade assembly, the hinge is located at the front side of the tail end of the upper cover and the middle part of the hinge is hinged to the upper blade assembly, a first guide part is provided between the tail end of the hinge and the tail end of the upper cover, the first guide part is a gear meshing structure, and the gear meshing structure is arranged to be a structure that can make the tail end of the hinge move toward the tail end of the upper cover and press down when the upper cover is pressed down.

[0006] After adopting the above structure, the utility model has the following advantages:

[0007] The labor-saving stapler of the utility model not only arranges the hinge and the upper cover together on the same outer side of the blade assembly to reduce the overall width, but also the first guide part between the hinge and the upper cover is realized by a gear meshing structure, and the gear meshing structure is very simple and compact, has almost no effect on the integrity of the product in appearance, and is also relatively convenient to install. Therefore, the above optimization greatly simplifies the structure of the first guide part, reduces the overall product width, has a simple appearance, and is more convenient to install.

[0008] Preferably, the tail ends of the nail channel, the upper blade assembly and the upper cover are hinged to the tail end of the bracket seat through a first axis, the middle part of the hinge is hinged to the upper blade assembly through a second axis, and the gear meshing structure is arranged between the first axis and the second axis. The gear meshing structure is reasonably arranged, the structure is more compact, and the meshing is more reliable.

[0009] Preferably, the gear meshing structure comprises a first tooth portion arranged at the rear end of the hinge and a second tooth portion arranged at the rear end of the upper cover, and the first tooth portion meshes with the second tooth portion. The gear meshing structure is simple and easy to implement.

[0010] Preferably, two first teeth are provided and are located on both sides of the rear end of the hinge, and two second teeth are provided and are located on both sides of the rear end of the upper cover. This arrangement enables both sides of the hinge and both sides of the upper cover to be provided with first guide parts, so that the force is more uniform and the meshing is more reliable.

[0011] Preferably, the two side walls of the rear end of the hinge are cut to form two first teeth, and the two side walls of the rear end of the upper cover are cut to form two second teeth. This arrangement directly uses the two side walls of the hinge and the upper cover to cut the first teeth and the second teeth, which simplifies the structure and is more convenient to process.

[0012] Preferably, a second guide portion is provided between the front end of the hinge and the bracket seat, and the second guide portion is configured to enable the front end of the hinge to move toward the front end of the bracket seat when the upper cover is pressed down, and to enable the front end of the hinge to be separated from the bracket seat when the upper cover is opened. This configuration allows the upper cover to be opened at a larger angle, thereby facilitating the insertion of staples into the staple channel.

[0013] Preferably, the second guide portion includes a third axis disposed in the middle of the bracket seat, and a hook portion disposed at the front end of the hinge, and when the upper cover is pressed down, the hook portion of the hinge moves forward and hooks the third axis of the bracket seat, and when the upper cover is opened, the hook portion of the hinge is separated from the third axis of the bracket seat. The second guide portion has a simple structure, occupies a small space, and further reduces the overall product width.

[0014] Preferably, the third shaft protrusion is arranged on both sides of the middle part of the bracket seat, and the hook parts are arranged in two and are respectively arranged on both sides of the front end of the hinge. This arrangement enables the second guide parts to be arranged on both sides of the hinge and both sides of the bracket seat, so that the force is more uniform and the guidance is more reliable.

[0015] Preferably, a positioning mechanism is further provided between the hinge and the upper blade assembly, for guiding the hook of the hinge to align with the third axis of the bracket seat. This arrangement can ensure that the hook of the hinge reliably hooks the third axis of the bracket seat when the upper cover is pressed down, and can also ensure that the hook of the hinge reliably detaches from the third axis of the bracket seat when the upper cover is opened.

[0016] Preferably, the positioning mechanism comprises an elastic member arranged between the top of the hinge and the top of the upper blade assembly. The positioning mechanism has a simple structure, low cost and reliable positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an existing labor-saving stapler;

[0018] Figure 2 It is a structural schematic diagram of the labor-saving stapler of the utility model;

[0019] Figure 3 Another structural schematic diagram of the labor-saving stapler of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the utility model labor-saving stapler after the plastic base is hidden;

[0021] Figure 5 It is an exploded schematic diagram of the labor-saving stapler of the utility model;

[0022] In the prior art figure: 1a-bracket seat, 2a-nail channel, 3a-upper blade assembly, 4a-hinge, 5a-upper cover, 6a-first slide slot, 7a-first axis, 8a-second slide slot, 9a-second axis;

[0023] In the figure of the utility model: 1-bracket seat, 2-nail channel, 3-upper blade assembly, 4-hinge, 5-upper cover, 6-first guide part, 7-first axis, 8-second axis, 9-first tooth part, 10-second tooth part, 11-second guide part, 12-third axis, 13-hook part, 14-elastic member, 15-first support spring, 16-second support spring, 17-plastic base. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Example:

[0026] like Figure 2-Figure 5 As shown, a labor-saving stapler includes a bracket seat 1, a nail channel 2, an upper blade assembly 3, a hinge 4 and an upper cover 5. The tail ends of the nail channel 2, the upper blade assembly 3 and the upper cover 5 are all hinged at the tail end of the bracket seat 1, the upper blade assembly 3 is arranged on the outside of the nail channel 2, the hinge 4 and the upper cover 5 are all arranged on the outside of the upper blade assembly 3, the hinge 4 is located at the front side of the tail end of the upper cover 5 and the middle part of the hinge 4 is hinged on the upper blade assembly 3, a first guide portion 6 is provided between the tail end of the hinge 4 and the tail end of the upper cover 5, the first guide portion 6 is a gear meshing structure, and the gear meshing structure is a structure that can make the tail end of the hinge 4 move toward the tail end of the upper cover 5 and press down when the upper cover 5 is pressed down, and the upper, lower, left, right, front and rear positions in this embodiment are as follows: Figure 4 shall prevail.

[0027] The labor-saving stapler of the utility model not only arranges the hinge 4 and the upper cover 5 together on the same outer side of the blade assembly to reduce the overall width, but also the first guide portion 6 between the hinge 4 and the upper cover 5 is realized by a gear meshing structure, and the gear meshing structure is very simple and compact, has almost no effect on the integrity of the product in appearance, and is also relatively convenient to install. Therefore, the above optimization greatly simplifies the structure of the first guide portion 6, reduces the overall product width, has a simple appearance, and is more convenient to install.

[0028] The tail ends of the nail channel 2, the upper blade assembly 3 and the upper cover 5 are hinged to the tail end of the bracket seat 1 through the first shaft 7, the middle part of the hinge 4 is hinged to the upper blade assembly 3 through the second shaft 8, and the gear meshing structure is arranged between the first shaft 7 and the second shaft 8. The gear meshing structure is reasonably arranged, the structure is more compact, and the meshing is more reliable.

[0029] The gear meshing structure comprises a first tooth portion 9 arranged at the rear end of the hinge 4 and a second tooth portion 10 arranged at the rear end of the upper cover 5, and the first tooth portion 9 meshes with the second tooth portion 10. The gear meshing structure is simple and easy to implement.

[0030] Two first tooth portions 9 are provided and are respectively located on both sides of the rear end of the hinge 4, and two second tooth portions 10 are provided and are respectively located on both sides of the rear end of the upper cover 5. This arrangement enables both sides of the hinge 4 and both sides of the upper cover 5 to be provided with the first guide portion 6, so that the force is more evenly applied and the meshing is more reliable.

[0031] The two side walls of the rear end of the hinge 4 are cut to form two first teeth 9, and the two side walls of the rear end of the upper cover 5 are cut to form two second teeth 10. This arrangement directly uses the two side walls of the hinge 4 and the upper cover 5 to cut the first teeth 9 and the second teeth 10, which is simpler in structure and more convenient to process.

[0032] A second guide portion 11 is further provided between the front end of the hinge 4 and the bracket seat 1. The second guide portion 11 is configured to enable the front end of the hinge 4 to move toward the front end of the bracket seat 1 when the upper cover 5 is pressed down, and to enable the front end of the hinge 4 to be separated from the bracket seat 1 when the upper cover 5 is opened. This configuration allows the upper cover 5 to be opened at a larger angle, thereby facilitating the loading of staples into the staple channel 2.

[0033] The second guide portion 11 includes a third shaft 12 disposed in the middle of the bracket seat 1, and a hook portion 13 disposed at the front end of the hinge 4. When the upper cover 5 is pressed down, the hook portion 13 of the hinge 4 moves forward and hooks the third shaft 12 of the bracket seat 1. When the upper cover 5 is opened, the hook portion 13 of the hinge 4 is separated from the third shaft 12 of the bracket seat 1. The second guide portion 11 has a simple structure, occupies a small space, and further reduces the overall product width.

[0034] The third shaft 12 is convexly arranged on both sides of the middle of the bracket seat 1, and two hooks 13 are arranged and respectively located on both sides of the front end of the hinge 4. This arrangement enables the second guide parts 11 to be arranged on both sides of the hinge 4 and both sides of the bracket seat 1, so that the force is more uniform and the guidance is more reliable.

[0035] A positioning mechanism is also provided between the hinge 4 and the upper blade assembly 3, for guiding the hook 13 of the hinge 4 to align with the third axis 12 of the bracket seat 1. This arrangement can ensure that the hook 13 of the hinge 4 reliably hooks the third axis 12 of the bracket seat 1 when the upper cover 5 is pressed down, and can also ensure that the hook 13 of the hinge 4 reliably detaches from the third axis 12 of the bracket seat 1 when the upper cover 5 is opened.

[0036] The positioning mechanism comprises an elastic member 14 arranged between the top of the hinge 4 and the top of the upper blade assembly 3. In this embodiment, the elastic member 14 is a tension spring. The positioning mechanism has a simple structure, low cost, and reliable positioning.

[0037] In this embodiment, a first support spring 15 is provided between the support seat 1 and the nail track 2 , a second support spring 16 is provided between the upper blade assembly 3 and the nail track 2 , and the support seat 1 is also fixed on a plastic base 17 .

[0038] The working principle of the utility model labor-saving stapler is as follows:

[0039] When in use, press the upper cover 5 to drive the upper blade assembly 3 and the nail channel 2 to rotate downward around the first axis 7 of the bracket seat 1 until the nail channel 2 presses the paper; continue to press down the upper cover 5, the hinge 4 will rotate around the second axis 8 of the upper blade assembly 3 as the gear meshing structure engages, the tail end of the hinge 4 moves toward the tail end of the upper cover 5 and presses down, and the hook 13 at the front end of the hinge 4 will move forward and hook the third axis 12 on the bracket seat 1, and then the hinge 4 forms a lever structure with the second axis 8 as the fulcrum, the meshing point of the gear meshing structure as the power point, and the third axis 12 as the resistance point, so that the upper cover 5 presses down the upper blade assembly 3 through the hinge 4, and presses out the staples in the nail channel 2 to complete the stapling action; when stapling is required, open the upper cover 5, the hook 13 at the front end of the hinge 4 disengages from the third axis 12, and the upper cover 5 can be opened freely, so as to facilitate the loading of staples into the nail channel 2.

Claims

1. A labor-saving stapler, comprising a support base (1), a staple channel (2), an upper blade assembly (3), a hinge (4) and an upper cover (5), wherein the rear ends of the staple channel (2), the upper blade assembly (3) and the upper cover (5) are hinged to the rear end of the support base (1), and the upper blade assembly (3) is arranged on the outer side of the staple channel (2), characterized in that: The hinge (4) and the upper cover (5) are both arranged on the outer side of the upper blade assembly (3); the hinge (4) is located at the front side of the rear end of the upper cover (5) and the middle part of the hinge (4) is hinged on the upper blade assembly (3); a first guide part (6) is provided between the rear end of the hinge (4) and the rear end of the upper cover (5); the first guide part (6) is a gear meshing structure, and the gear meshing structure is arranged to enable the rear end of the hinge (4) to move toward the rear end of the upper cover (5) and press downward when the upper cover (5) is pressed downward.

2. A labor-saving stapler according to claim 1, characterized in that: The tail ends of the nail channel (2), the upper blade assembly (3) and the upper cover (5) are hinged to the tail end of the bracket seat (1) through a first shaft (7), the middle part of the hinge (4) is hinged to the upper blade assembly (3) through a second shaft (8), and the gear meshing structure is arranged between the first shaft (7) and the second shaft (8).

3. A labor-saving stapler according to claim 2, characterized in that: The gear meshing structure comprises a first tooth portion (9) arranged at the rear end of the hinge (4), and a second tooth portion (10) arranged at the rear end of the upper cover (5), wherein the first tooth portion (9) meshes with the second tooth portion (10).

4. The labor-saving stapler according to claim 3, characterized in that: Two first tooth portions (9) are provided and are respectively located on both sides of the rear end of the hinge (4); two second tooth portions (10) are provided and are respectively located on both sides of the rear end of the upper cover (5).

5. The labor-saving stapler according to claim 4, characterized in that: The two side walls at the rear end of the hinge (4) are cut to form two first tooth portions (9), and the two side walls at the rear end of the upper cover (5) are cut to form two second tooth portions (10).

6. The labor-saving stapler according to claim 1, characterized in that: A second guide portion (11) is also provided between the front end of the hinge (4) and the bracket seat (1), and the second guide portion (11) is configured to enable the front end of the hinge (4) to move toward the front end of the bracket seat (1) when the upper cover (5) is pressed down, and to enable the front end of the hinge (4) to be separated from the bracket seat (1) when the upper cover (5) is opened.

7. The labor-saving stapler according to claim 6, characterized in that: The second guiding portion (11) comprises a third shaft (12) arranged in the middle of the bracket seat (1), and a hook portion (13) arranged at the front end of the hinge (4); when the upper cover (5) is pressed down, the hook portion (13) of the hinge (4) moves forward and hooks the third shaft (12) of the bracket seat (1); when the upper cover (5) is opened, the hook portion (13) of the hinge (4) is separated from the third shaft (12) of the bracket seat (1).

8. The labor-saving stapler according to claim 7, characterized in that: The third shaft (12) is protrudingly arranged on both sides of the middle of the bracket seat (1), and two hooks (13) are arranged and are respectively located on both sides of the front end of the hinge (4).

9. The labor-saving stapler according to claim 1, characterized in that: A positioning mechanism is also provided between the hinge (4) and the upper blade assembly (3) for guiding the hook portion (13) of the hinge (4) to align with the third axis (12) of the bracket seat (1).

10. The labor-saving stapler according to claim 9, characterized in that: The positioning mechanism comprises an elastic member (14) arranged between the top of the hinge (4) and the top of the upper blade assembly (3).

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