Stapler

Abstract

The stapler comprises a base, a staple path and a knife rest, the end of the base is rotationally connected with the end of the staple path through a first rotating shaft, the knife rest is arranged on the upper portion of the staple path, and the knife rest is also rotationally connected with the base through the first rotating shaft; the auxiliary push rod is arranged on the upper portion of the knife rest, the auxiliary push rod and the knife rest are rotationally connected through a second rotating shaft, the auxiliary push rod comprises a head end and a tail end which are opposite, the tail end of the auxiliary push rod is the end close to the first rotating shaft, and the tail end of the auxiliary push rod abuts against the base to limit the tail end to tilt up, and the part from the head end of the auxiliary push rod to the second rotating shaft is a first force arm; the part from the second rotating shaft to the tail end of the auxiliary push rod is a second force arm which is longer than the first force arm; wherein the head end of the auxiliary push rod is pressed to drive the knife rest to push staples in the staple channel out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of office supplies, in particular to a stapler. BACKGROUND

[0002] In modern office environments, staplers are one of the indispensable office supplies, which are widely used in file organization, document binding and other work scenarios. With the improvement of office efficiency and the increase of document binding workload, the requirement for the convenience of staplers is also increasing.

[0003] The traditional stapler structure is often relatively simple and direct in design, and its stapling principle is mainly based on simple mechanical structure. In actual use, the user needs to manually apply a certain pressure to drive the mechanical components inside the stapler to work, so as to staple the staple into the paper. However, this traditional structure has obvious limitations.

[0004] On the one hand, when thicker documents or more paper need to be bound, the staple needs to overcome greater resistance to penetrate the paper and complete the binding. This means that the user must exert more force, which will quickly cause hand fatigue for users who use the stapler for a long time. For example, in places such as school printing rooms, office rooms of enterprises, and other places where a large number of documents need to be bound, staff may need to use the stapler hundreds of times a day, and the excessive force operation mode seriously affects the work efficiency and comfort.

[0005] On the other hand, as the stapler is used for a long time, its internal mechanical parts may wear out, loosen, and other problems. These problems will further increase the friction and resistance in the stapling process, making the stapling operation, which already requires a lot of force, even more laborious. Moreover, different brands and models of staplers differ greatly in labor-saving design, and many low-cost staplers do not fully consider the labor-saving factor in design, causing great inconvenience to users.

[0006] In addition, in some special office environments, such as frequent changes in binding position or paper type, the requirement for labor-saving performance of frequent stapling operations is more prominent. If the stapler cannot effectively reduce the user's operation burden, it will affect the smoothness of the entire office process. Therefore, how to design a stapler that can effectively save labor in stapling has become an important technical problem to be solved in the current office supply design field. CONTENT OF THE INVENTION

[0007] The purpose of the present application is to provide a stapler so that the user can use the stapler to staple with less effort.

[0008] To achieve the above object, the technical scheme adopted by the present application is as follows: a stapler, comprising: a base, a nail channel and a cutter holder, the end of the base is rotationally connected with the end of the nail channel through a first rotating shaft, the cutter holder is arranged on the upper part of the nail channel, and the cutter holder is also rotationally connected with the base through the first rotating shaft; an auxiliary push rod, the auxiliary push rod is arranged on the upper part of the cutter holder, and the auxiliary push rod is rotationally connected with the cutter holder through a second rotating shaft, the auxiliary push rod comprises opposite first and second ends, the second end of the auxiliary push rod is the end close to the first rotating shaft, the second end of the auxiliary push rod abuts against the base to limit the second end from being raised, the part of the first end of the auxiliary push rod to the second rotating shaft is arranged as a first force arm, the part of the second rotating shaft to the second end of the auxiliary push rod is arranged as a second force arm, the length of the first force arm is greater than the length of the second force arm; wherein, the first end of the auxiliary push rod is pressed to drive the cutter holder to push out the staples in the nail channel.

[0009] As a preferred, the first force arm is arranged to be bent relative to the second force arm, and the first force arm is bent close to the plane where the cutter holder is arranged.

[0010] As another preferred, the auxiliary push rod comprises a side plate and a top plate, the side plate is connected with the top plate, the side plate is used to be rotationally connected with the second rotating shaft, the top plate is arranged at the position of the first force arm, the second force arm is surrounded by the side plate and the top plate to define a swing space.

[0011] Further preferably, the stapler further comprises: an upper cover, the upper cover covers the auxiliary push rod, and the upper cover is fixedly connected with the first force arm of the auxiliary push rod, the end of the upper cover protrudes from the first end of the auxiliary push rod.

[0012] Further preferably, the upper cover is arranged to be in close contact with the first force arm of the auxiliary push rod, and the end of the upper cover is connected with the first end of the auxiliary push rod in a detachable manner.

[0013] Further preferably, the first force arm is provided with a protruding part, the inner wall of the upper cover is provided with a hook, and the first force arm is buckled with the hook through the protruding part.

[0014] Further preferably, the stapler further comprises: a nail cover, the end of the nail cover is rotationally connected with the first rotating shaft, and the nail cover covers the nail channel to stop the staples in the nail channel from coming out.

[0015] Further preferably, the nail cover is connected with the cutter holder through an elastic member, in the stapling process, the user presses the auxiliary push rod to drive the cutter holder to gradually approach the nail channel, the elastic member is deformed, and after the stapling is completed, the user releases the auxiliary push rod to drive the cutter holder to return to the original position through the elastic member.

[0016] Preferably, the base is further provided with a guide portion, the guide portion comprises a first arc-shaped abutting surface, a second arc-shaped abutting surface is arranged corresponding to the tail end of the auxiliary push rod, the first arc-shaped abutting surface abuts against the second arc-shaped abutting surface; wherein the head end of the auxiliary push rod is pressed to make the auxiliary push rod rotate along the second rotation shaft, and then the first arc-shaped abutting surface is clamped into the guide portion along the extension arc of the second arc-shaped abutting surface.

[0017] Preferably, the stapler further has an open state, the auxiliary push rod and the knife holder rotate away from the nail channel through the first rotation shaft to make the stapler change into the open state, and the first arc-shaped abutting surface and the second arc-shaped abutting surface are separated from each other.

[0018] Compared with the prior art, the stapler has the beneficial effects that:

[0019] The first force arm length of the auxiliary push rod is greater than the second force arm length, forming a labor-saving lever, when the user presses the head end of the auxiliary push rod, only a small force is needed to drive the knife holder to push out the staple, facilitating the stapling operation, and meanwhile the auxiliary push rod is arranged in an inverted V shape, the first force arm is bent close to the plane where the knife holder is located, further optimizing the labor-saving effect.

[0020] The guide portion of the base cooperates with the arc-shaped abutting surface of the tail end of the auxiliary push rod, in the stapling operation, the auxiliary push rod rotates along the second rotation shaft, the first arc-shaped abutting surface is clamped into the guide portion along the extension arc of the second arc-shaped abutting surface, and the lever principle is used to make the stapling more labor-saving.

[0021] The reinforcement of the auxiliary push rod is achieved by arranging a side plate and a top plate on the auxiliary push rod, the side plate is connected with the second rotation shaft and used to rotate with the second rotation shaft, and the top plate is arranged at the position of the first force arm to improve the strength of the auxiliary push rod, the top plate and the side plate are integrally formed, and the swing space at the second force arm facilitates the rotation of the auxiliary push rod.

[0022] The auxiliary push rod is provided with an upper cover, the upper cover covers the auxiliary push rod and is fixedly connected with the first force arm, the end portion of the upper cover protrudes from the head end of the auxiliary push rod, facilitating the user to press and staple, the upper cover has a large volume to expand the length of the first force arm, making the operation more labor-saving.

[0023] The upper cover is arranged in abutment with the first force arm of the auxiliary push rod, facilitating the transmission of force, and the end portion is detachably connected with the head end of the auxiliary push rod, facilitating the replacement of the upper cover. The connection is achieved by the buckling of the protruding portion and the hook. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a sectional structure schematic view of the stapler;

[0025] Figure 2 It is a structure schematic view of the stapler;

[0026] Figure 3 Fig. 2 is a structural schematic diagram of the structure of the stapler without the upper cover and the bottom shell;

[0027] Figure 4 Fig. 3 is a side structural schematic diagram of the stapler in a resting state;

[0028] Figure 5 Fig. 4 is a side structural schematic diagram of the stapler in a nailing state;

[0029] Figure 6 Fig. 5 is a side structural schematic diagram of the stapler in an open state;

[0030] Figure 7 Fig. 6 is a structural schematic diagram of the assembly of the upper cover and the auxiliary push rod.

[0031] In the figure: 1, stapler; 10, base; 11, first rotating shaft; 12, guide part; 121, first arc-shaped abutting surface; 20, nail channel; 30, cutter holder; 31, second rotating shaft; 40, auxiliary push rod; 41, first force arm; 411, protruding part; 42, second force arm; 43, side plate; 44, top plate; 45, swinging space; 46, second arc-shaped abutting surface; 50, upper cover; 51, pressing area; 52, clasp; 60, bottom shell; 70, nail cover; 71, elastic member. DETAILED DESCRIPTION

[0032] Hereinafter, the present application will be further described in conjunction with specific embodiments. It should be noted that, under the premise of no conflict, the embodiments described below or the technical features between the embodiments can be combined in any manner to form new embodiments.

[0033] In the description of the present application, it should be noted that, for orientation words, such as the terms “center”, “transverse”, “longitudinal”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0034] It should be noted that the terms “first”, “second”, etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0035] The terms "comprise" and "comprising", and any variations thereof, as used in the specification and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of steps or elements does not necessarily comprise only those steps or elements but can include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] In a preferred embodiment, referring to Figures 1 to 7 , the present document provides a stapler 1, comprising: a base 10, a nail channel 20, a knife holder 30, the end of the base 10 and the end of the nail channel 20 are rotationally connected by a first rotating shaft 11, the knife holder 30 is arranged on the upper part of the nail channel 20, and the knife holder 30 and the base 10 are also rotationally connected by the first rotating shaft 11; an auxiliary push rod 40, the auxiliary push rod 40 is arranged on the upper part of the knife holder 30, and the auxiliary push rod 40 and the knife holder 30 are rotationally connected by a second rotating shaft 31, the auxiliary push rod 40 comprises opposite first and second ends, the second end of the auxiliary push rod 40 is the end close to the first rotating shaft 11, the second end of the auxiliary push rod 40 abuts against the base 10 to limit the second end from being raised, the part of the first end of the auxiliary push rod 40 to the second rotating shaft 31 is set as a first force arm 41, and the part of the second rotating shaft 31 to the second end of the auxiliary push rod 40 is set as a second force arm 42, see Figure 4 , the length of the first force arm 41 is set as L1, the length of the second force arm 42 is set as L2, the length L1 of the first force arm 41 is greater than the length L2 of the second force arm 42, the first force arm 41 is a power arm, and the second force arm 42 is a resistance arm; wherein the first end of the auxiliary push rod 40 is pressed to drive the knife holder 30 to push out the staples in the nail channel 20.

[0037] As a preferred, the first force arm 41 is arranged to be bent relative to the second force arm 42, and the first force arm 41 is bent close to the plane where the knife holder 30 is located, so that the auxiliary push rod 40 is arranged in an inverted V shape, the length L1 of the first force arm 41 is greater than the length L2 of the second force arm 42, and then when the user performs the stapling operation, only a small force needs to be applied to the first end of the first force arm 41, so that the knife holder 30 can be pressed down to staple, which is a labor-saving lever structure.

[0038] Preferably, the base 10 is also provided with a guide portion 12, the guide portion 12 comprises a first arc-shaped abutting surface 121, the second end of the auxiliary push rod 40 comprises a second arc-shaped abutting surface 46, and the first arc-shaped abutting surface 121 abuts against the second arc-shaped abutting surface 46; wherein the first end of the auxiliary push rod 40 is pressed to make the auxiliary push rod 40 rotate along the second rotating shaft 31, and then the first arc-shaped abutting surface 121 is clamped into the guide portion 12 along the extension arc of the second arc-shaped abutting surface 46.

[0039] Therefore, in a specific stapling process, referring to Figure 4, the first arc-shaped abutting surface 121 in the resting state abuts against the top region of the second arc-shaped abutting surface 46, when the user gives a downward force to the first end of the first force arm 41 to assist the push rod 40 to rotate along the second rotating shaft 31, at this time, the stroke of the first force arm 41 is changed into Figure 5 As shown in the figure, the abutting point of the first arc-shaped abutting surface 121 relative to the second arc-shaped abutting surface 46 is clamped into the guide part 12, the first end of the push rod 40 is subjected to a downward force, and the tail end is subjected to an upward force at the position of the second arc-shaped abutting surface 46, since the length L2 of the second force arm 42 is smaller than the length L1 of the first force arm 41, thereby completing a more labor-saving nailing operation.

[0040] As another preferred, the push rod 40 comprises a side plate 43 and a top plate 44, the side plate 43 is connected with the top plate 44, the side plate 43 is used to be connected with the second rotating shaft 31, and the top plate 44 is arranged at the position of the first force arm 41, the arrangement of the top plate 44 can improve the strength of the push rod 40 to a certain extent, and preferably the top plate 44 and the side plate 43 are integrally formed, the second force arm 42 is surrounded by the side plate 43 and the top plate 44 to define a swing space 45, which facilitates the rotation of the push rod 40 along the second rotating shaft 31.

[0041] Further preferably, the stapler 1 further comprises an upper cover 50, the upper cover 50 covers the push rod 40, and the upper cover 50 is fixedly connected with the first force arm 41 of the push rod 40, and the end of the upper cover 50 protrudes from the first end of the push rod 40.

[0042] The arrangement of the upper cover 50 facilitates the user to press the push rod 40 for nailing, and the push rod 40 is arranged in the upper cover 50, the upper cover 50 is larger than the push rod 40 in volume, so that the length of the first force arm 41 can be extended to a certain extent, so that the operator can use the stapler 1 in the present application more labor-savingly. At the same time, the outer wall of the upper cover 50 is further provided with a pressing region 51, see Figure 2 The pressing region 51 is a frosted region that can provide a large friction, which facilitates the operator to press the upper cover 50 without slipping and deviation, so as to realize a more smooth nailing action, and the pressing region 51 plans the pressing position of the user during the nailing process, so that the user can enjoy the labor-saving effect of the push rod 40 when pressing the pressing region 51 of the upper cover 50.

[0043] Further preferably, the upper cover 50 is arranged in close contact with the first force arm 41 of the push rod 40, specifically, the inner wall of the upper cover 50 is arranged in close contact with the top plate 44 of the first force arm 41, which facilitates the user to directly transmit the force to the first force arm 41, and the end of the upper cover 50 is detachably connected with the first end of the push rod 40, so that the upper cover 50 can be replaced after being used for several times.

[0044] Further preferably, referring to Figure 7 , the first force arm 41 is provided with a protrusion 411, and the inner wall of the upper cover 50 is provided with a hook 52, and the first force arm 41 is buckled with the hook 52 through the protrusion 411.

[0045] Further preferably, the stapler 1 further comprises a nail cover 70, the end of the nail cover 70 is rotationally connected with the first rotating shaft 11, and the nail cover 70 covers on the nail channel 20 to stop the staple in the nail channel 20 from coming out.

[0046] Further preferably, the nail cover 70 is connected with the knife holder 30 through an elastic piece 71, and in the stapling process, the user presses the auxiliary push rod 40 to drive the knife holder 30 to gradually approach the nail channel 20, the elastic piece 71 is deformed, and after the staple is ejected, the user releases the auxiliary push rod 40 to drive the knife holder 30 to reset through the elastic piece 71. Wherein, the elastic piece 71 is a kind of elastic iron sheet structure, one end of the elastic iron sheet is connected with the bottom end of the knife holder 30, and the other end of the elastic iron sheet is connected with the top of the nail cover 70, in the state of nailing, that is, Figure 5 , at this time, the elastic iron sheet is extruded to be deformed, when the nailing is completed, the auxiliary push rod 40 is released, and since the elastic iron sheet resets through elastic deformation, the knife holder 30 and the auxiliary push rod 40 are reset, and reset to Figure 4 , the resting state of the stapler 1 in the figure, thereby completing a nailing operation.

[0047] When the stapler 1 changes from the resting state to the open state, that is, the stapler 1 changes from Figure 4 to Figure 6 , the nail cover 70, the knife holder 30 and the auxiliary push rod 40 rotate clockwise to move away from the nail channel 20, and form an obtuse angle opening angle to facilitate the staple in the nail channel 20, at this time, the auxiliary push rod 40 and the knife holder 30 rotate away from the nail channel 20 through the first rotating shaft 11, so that the stapler 1 changes to the open state, and the first arc abutting surface 121 and the second arc abutting surface 46 are separated from each other.

[0048] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A stapler characterized by comprising: It comprises: a base, a nail channel, a tool holder, the end of the base is rotatably connected with the end of the nail channel through a first rotating shaft, the tool holder is arranged on the upper part of the nail channel, and the tool holder is also rotatably connected with the base through the first rotating shaft; an auxiliary push rod, the auxiliary push rod is arranged on the upper part of the tool holder, and the auxiliary push rod is rotatably connected with the tool holder through a second rotating shaft, the auxiliary push rod comprises opposite first and second ends, the second end of the auxiliary push rod is close to the first rotating shaft, the second end of the auxiliary push rod abuts against the base to limit the second end from being raised, the part of the first end of the auxiliary push rod to the second rotating shaft is arranged as a first force arm, the part of the second rotating shaft to the second end of the auxiliary push rod is arranged as a second force arm, the length of the first force arm is greater than the length of the second force arm; wherein, the first end of the auxiliary push rod is pressed to drive the tool holder to push out the staple in the nail channel.

2. The stapler of claim 1, wherein: the first force arm is arranged to be bent relative to the second force arm, and the first force arm is bent close to the plane where the tool holder is located.

3. The stapler of claim 2, wherein: the auxiliary push rod comprises a side plate and a top plate, the side plate is connected with the top plate, the side plate is used to be rotatably connected with the second rotating shaft, the top plate is arranged at the position of the first force arm, and the second force arm is surrounded by the side plate and the top plate to define a swinging space.

4. The stapler of claim 2, wherein It further comprises: an upper cover, the upper cover covers the auxiliary push rod, the upper cover is fixedly connected with the first force arm of the auxiliary push rod, and the end of the upper cover protrudes from the first end of the auxiliary push rod.

5. The stapler of claim 4, wherein: the upper cover is arranged in close contact with the first force arm of the auxiliary push rod, and the end of the upper cover is detachably connected with the first end of the auxiliary push rod.

6. The stapler of claim 5, wherein: the first force arm is provided with a protruding part, an inner wall of the upper cover is provided with a hook, and the first force arm is buckled with the hook through the protruding part.

7. The stapler of claim 1, wherein It further comprises: a nail cover, the end of the nail cover is rotatably connected with the first rotating shaft, and the nail cover covers the nail channel to stop the staple in the nail channel from coming out.

8. The stapler of claim 7, wherein: the nail cover is connected with the tool holder through an elastic member, during the stapling process, the user presses the auxiliary push rod to drive the tool holder to gradually approach the nail channel, the elastic member is deformed, and after the stapling is completed, the user releases the auxiliary push rod to drive the tool holder to return to the original position through the elastic member.

9. The stapler of any one of claims 1-8, wherein: the base is further provided with a guide part, the guide part comprises a first arc-shaped abutting surface, and a second arc-shaped abutting surface corresponding to the second end of the auxiliary push rod, the first arc-shaped abutting surface abuts against the second arc-shaped abutting surface; wherein, the first end of the auxiliary push rod is pressed to make the auxiliary push rod rotate along the second rotating shaft, and then the first arc-shaped abutting surface is clamped into the guide part along the extension arc of the second arc-shaped abutting surface.

10. The stapler of claim 9, wherein, The stapler further has an open state, the auxiliary push rod and the knife holder rotate away from the nail channel through the first rotating shaft, so that the stapler is changed to the open state, and the first arc-shaped abutting surface and the second arc-shaped abutting surface are separated from each other.

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