Lever type electric stapler

Abstract

The utility model discloses a lever type electric stapler which comprises a shell, a stapling mechanism arranged at the bottom of the shell, a driving mechanism for driving the stapling mechanism to realize stapling action, and a lever rotationally arranged between the stapling mechanism and the driving mechanism, the driving mechanism comprises a motor and a gear reciprocating transmission mechanism arranged at the output end of the motor, the lever type electric stapler has the advantages of being simple in structure and stable and reliable in work, the stapling mechanism and the driving mechanism are both arranged between the first side plate and the second side plate, and therefore the stapling efficiency is improved. The whole electric stapler is more compact in structure, the lever is arranged between the stapling mechanism and the driving mechanism, and the motor drives the gear reciprocating transmission mechanism to drive the lever to move in a reciprocating manner and eject the staple pressing upper cover in a reciprocating manner, so that the automatic stapling action is realized, the working load of the motor can be effectively reduced, and the stapling effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of office supplies, and particularly relates to a lever-type electric stapler. Background Art

[0002] A stapler is a tool for binding papers, cardboard, etc., and is widely used in offices, factories, and families. Currently, staplers have developed from traditional manual pressing to automatic binding.

[0003] For example, Chinese utility model patent with the authorization announcement number CN204772393U and the name of "a pneumatic binding machine" discloses a pneumatic binding machine, which includes a workbench, at least one binding unit arranged on the workbench, and a controller for controlling the work of the binding unit. An installation groove for installing the binding unit is arranged on the workbench. Each binding unit is provided with a connecting part cooperating with the installation groove. The binding unit includes a machine shell, a stapler, and a cylinder for driving the stapler to perform the binding action. The cylinder is connected to the controller. The stapler includes a base, a staple box and a pressing box hinged to the base. The piston rod of the cylinder is correspondingly arranged opposite to the pressing box. Both the cylinder and the base are fixedly connected to the machine shell, and the base extends out of the machine shell and corresponds to the installation groove.

[0004] When the stapler in this patent is in use, since it requires a gas source to supply gas to the cylinder, it occupies a large space, and the stability of the air pressure is easily affected by the outside, thus affecting the binding quality and quality.

[0005] In view of this, the applicant has conducted in-depth research on the above problems, and thus this case has been generated. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a lever-type electric stapler with a simple structure, stable and reliable performance, and convenient use.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A lever-type electric stapler, comprising a housing, a stapling mechanism disposed at the bottom of the housing, and a driving mechanism for driving the stapling mechanism to perform a stapling action. The stapling mechanism includes a base, a staple box for accommodating staples, and a staple pressing upper cover cooperating with the staple box for pressing the staples out of the staple box. A reset mechanism is further provided between the staple pressing upper cover and the staple box. It is characterized in that: it further includes a lever rotatably disposed between the stapling mechanism and the driving mechanism. The housing includes a first side plate and a second side plate disposed opposite to each other. The lever is rotatably disposed between the first side plate and the second side plate. The base is installed between the first side plate and the second side plate. The driving mechanism includes a motor fixed between the first side plate and the second side plate, and a gear reciprocating transmission mechanism disposed at the output end of the motor. The motor drives one end of the lever to move up and down reciprocally through the gear reciprocating transmission mechanism. One end of the lever is located above the staple pressing upper cover, and the other end is located above the gear reciprocating transmission mechanism.

[0009] Further, the motor is horizontally arranged. The gear reciprocating transmission mechanism includes a driving gear disposed at the output end of the motor, a slide rail disposed on the first side plate, and a rack slidably disposed on the slide rail. The slide rail is longitudinally arranged, and the driving gear meshes with the rack.

[0010] Further, a first bearing seat is provided on the side of the rack close to the lever. First lugs are symmetrically arranged on the first bearing seat. A first bearing is rotatably connected between the two first lugs, and the first bearing abuts against the bottom of the lever.

[0011] Further, the motor is longitudinally arranged. The gear reciprocating transmission mechanism includes a first helical gear disposed at the output end of the motor, a second helical gear rotatably disposed in the housing through a first mounting shaft, a third helical gear rotatably disposed in the housing through a second mounting shaft, and an eccentric wheel fixedly installed on the second mounting shaft. The first helical gear meshes with the second helical gear, the second helical gear meshes with the third helical gear. The first mounting shaft and the second mounting shaft are both arranged in the horizontal direction, the first mounting shaft and the second mounting shaft are parallel to each other. The first helical gear is arranged in the horizontal direction and is parallel to the first mounting shaft. The lever is located above the eccentric wheel.

[0012] Further, a sensor is further provided at a position on the base corresponding to the eccentric wheel. The sensor is electrically connected to the motor. A detection rod is provided at a position of the eccentric wheel away from the second mounting shaft. When the detection rod is located below the second mounting shaft, it is in the detection path of the sensor.

[0013] Further, a base is provided on one side of the lever close to the eccentric wheel. An elastic plate is connected to the base. One end of the elastic plate is a mounting end connected to the base, and the other end is a movable end that can move up and down. A second bearing seat is provided on the movable end. Second lugs are symmetrically arranged on the second bearing seat. A second bearing is rotatably connected between the two second lugs. The eccentric wheel abuts against the bottom of the second bearing.

[0014] Further, the movable end is correspondingly arranged at a position of the elastic plate close to the eccentric wheel. The elastic plate is locked to the base by a first screw.

[0015] Further, a third bearing seat is provided on the top of the staple cartridge. Third lugs are symmetrically arranged on the third bearing seat. A third bearing is rotatably connected between the two third lugs. One end of the lever abuts against the third bearing.

[0016] Further, the base is locked to the first side plate and the second side plate by a second screw.

[0017] By adopting the foregoing design scheme, the beneficial effects of the present utility model are as follows:

[0018] The lever-type electric stapler of the present utility model has the advantages of simple structure, stable and reliable operation. The binding mechanism and the driving mechanism are both arranged between the first side plate and the second side plate, making the structure of the whole electric stapler more compact. A lever is arranged between the binding mechanism and the driving mechanism, and the motor drives the gear reciprocating transmission mechanism to drive the lever to reciprocate and reciprocally press the staple upper cover, realizing an automatic binding action, which can effectively reduce the working load of the motor and has a good binding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the first embodiment of the lever-type electric stapler of the present utility model, and the second side plate is omitted in the figure.

[0020] Figure 2 It is a three-dimensional schematic diagram of different states of the binding mechanism in the first embodiment of the lever-type electric stapler of the present utility model, and the second side plate is omitted in the figure.

[0021] Figure 3 It is a three-dimensional schematic diagram of the first embodiment of the lever-type electric stapler of the present utility model.

[0022] Figure 4 It is a three-dimensional schematic diagram of the second embodiment of the lever-type electric stapler of the present utility model, and the second side plate is omitted in the figure.

[0023] Figure 5This is a three-dimensional schematic diagram of different states of the binding mechanism in the second embodiment of the lever-type electric stapler of the present utility model. The second side plate is omitted in the figure.

[0024] Figure 6 This is a three-dimensional schematic diagram of the second embodiment of the lever-type electric stapler of the present utility model.

[0025] In the figure:

[0026] 11 - First side plate;

[0027] 12 - Second side plate; 2 - Binding mechanism;

[0028] 21 - Base; 22 - Staple box;

[0029] 23 - Upper staple pressing cover; 3 - Driving mechanism;

[0030] 31 - Motor; 32 - Driving gear;

[0031] 33 - Slide rail; 34 - Rack;

[0032] 35 - First lug; 36 - First bearing;

[0033] 310 - Fixed seat;

[0034] 311 - First helical gear; 312 - First mounting shaft;

[0035] 313 - Second helical gear; 314 - Second mounting shaft;

[0036] 315 - Third helical gear; 316 - Eccentric wheel;

[0037] 317 - Detection rod;

[0038] 4 - Lever; 41 - Support shaft;

[0039] 42 - Base; 43 - Elastic plate;

[0040] 44 - Second lug; 45 - Second bearing;

[0041] 51 - Third lug; 52 - Second bearing;

[0042] 6 - Inductor. Detailed implementation manners

[0043] The following clearly and completely describes the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0044] Embodiment 1

[0045] As Figures 1 to 3 shown, a lever-type electric stapler includes a housing, a binding mechanism 2 provided at the bottom of the housing, and a driving mechanism 3 for driving the binding mechanism 2 to perform a binding action. It further includes a lever 4 rotatably provided between the binding mechanism 2 and the driving mechanism 3. The binding mechanism 2 includes a base 21, a staple box 22 for accommodating staples, and a pressing staple upper cover 23 cooperating with the staple box 22 to press the staples out of the staple box 22. Specifically, a binding opening for binding is formed between the staple box 22 and the base 21. Both the staple box 22 and the pressing staple upper cover 23 are hinged to the base 21 and are provided with an automatic reset mechanism. Preferably, in the present utility model, there is a return spring (not shown in the figure) between the staple box 22 and the pressing staple upper cover 23. Both ends of the return spring are respectively fixed to the staple box 22 and the pressing staple upper cover 23, so that the pressing staple upper cover 23 can automatically return upward after pressing down for stapling, and at the same time, the accommodating groove for loading staples in the staple box 22 can pop out to facilitate replenishing staples. The binding mechanism 2 with this structure has been introduced in existing automatic staplers, and similar descriptions will not be repeated here.

[0046] The housing includes a first side plate 11 and a second side plate 12 arranged oppositely. The base 21 is installed between the first side plate 11 and the second side plate 12. Both the first side plate 11 and the second side plate 12 are arranged parallel in the vertical direction. The lever 4 is rotatably provided between the middle parts of the first side plate 11 and the second side plate 12 through a support shaft 41 in the middle thereof. The base 21 is installed between the lower parts of the first side plate 11 and the second side plate 12.

[0047] The driving mechanism 3 includes a motor 31 fixed between the first side plate 11 and the second side plate 12, and a gear reciprocating transmission mechanism arranged at the output end of the motor 31. One end of the lever 4 is located above the pressing nail upper cover 23, and the other end is located above the gear reciprocating transmission mechanism. The motor 31 drives one end of the lever 4 to move up and down reciprocally through the gear reciprocating transmission mechanism. Specifically, in this embodiment, the motor 31 is arranged horizontally. The gear reciprocating transmission mechanism includes a driving gear 32 fixed to the output end of the motor 31, a slide rail 33 fixed to the first side plate, and a rack 34 slidably arranged on the slide rail 33. The slide rail 33 is arranged longitudinally. Correspondingly, the rack 34 is also arranged longitudinally. The driving gear 32 is meshed with the rack 34. A first bearing seat is fixed to the side of the rack 34 close to the lever 4. First lugs 35 are symmetrically arranged on the first bearing seat. It also includes a first connecting shaft passing through the two first lugs 35. A first bearing 36 is rotatably connected to the first connecting shaft. The first bearing 36 abuts against the bottom of the lever 4. By arranging the first bearing 36, a sliding contact can be realized between the lever 4 and the rack 34, avoiding wear caused by hard contact between the lever 4 and the rack 34. The motor 31 in this embodiment can adopt a conventional servo motor in the art that can rotate forward or backward.

[0048] During use, the output end of the motor 31 controls the driving gear 32 to rotate forward or backward, thereby driving the rack 34 to reciprocate on the slide rail 33. Since there is a return spring between the nail box 22 and the pressing nail upper cover 23, one end of the lever 4 close to the pressing nail upper cover 23 will always give a certain resilience to the lever 4 above it, so that the other end of the lever 4 can always abut against the first bearing 36, that is, the first bearing 36 always abuts against the bottom of the lever 4. Therefore, when the rack 34 moves, it also drives one end of the lever 4 to move. When the rack 34 moves upward, it drives one end of the lever 4 to move upward, so that the other end of the lever 4 presses down the pressing nail upper cover 23 to realize the binding action. When the rack 34 moves downward, it drives one end of the lever 4 to move downward, so that the other end of the lever 4 moves upward and no longer applies pressure to the pressing nail upper cover 23. The pressing nail upper cover 23 moves upward under the action of the return spring to reset and wait for the next binding.

[0049] Further, a third bearing seat is arranged on the top of the pressing nail upper cover 23. Third lugs 51 are symmetrically arranged on the third bearing seat. It also includes a third connecting shaft passing through the two third lugs 51. A third bearing 52 is rotatably connected to the third connecting shaft. One end of the lever 4 abuts against the third bearing 52. By arranging the third bearing 52, a sliding friction can be realized between the lever 4 and the pressing nail upper cover 23, avoiding wear caused by hard contact between the lever 4 and the pressing nail upper cover 23.

[0050] Embodiment 2

[0051] As Figures 4 to 6As shown in the figure, the difference between this embodiment and the first embodiment lies in the different arrangement directions of the motor 31 and the different gear reciprocating transmission mechanisms: in this embodiment, the motor 31 is longitudinally arranged, and the gear reciprocating transmission mechanism includes a first helical gear 311 provided at the output end of the motor 31, a second helical gear 313 rotatably provided in the housing through a first mounting shaft 312, a third helical gear 315 rotatably provided in the housing through a second mounting shaft 314, and an eccentric wheel 316 fixedly mounted on the second mounting shaft 314. Specifically, in this embodiment, a fixed seat 310 for mounting the second helical gear 313 is provided in the housing, the fixed seat 310 is fixedly provided on the top of the motor 31, both ends of the first mounting shaft 312 are rotatably provided in the fixed seat 310, the second helical gear 313 is rotatably provided on the first mounting shaft 312, both ends of the second mounting shaft 314 are rotatably mounted on the first side plate 11 and the second side plate 12, both the first mounting shaft 312 and the second mounting shaft 314 are arranged in the horizontal direction, and the first mounting shaft 312 and the second mounting shaft 314 are arranged in parallel. In this embodiment, the first helical gear 311 is arranged horizontally, the first helical gear 311 meshes with the second helical gear 313, the second helical gear 313 meshes with the third helical gear 315, the eccentric wheel 316 is fixedly mounted on the second mounting shaft 314, and one end of the lever 4 abuts against the top of the eccentric wheel 316. In this embodiment, the motor 31 is a high-speed motor, for example, a motor with a speed of 1000 to 100,000 revolutions per minute can be selected.

[0052] With this structure, the motor 31 is a high-speed motor, the transmission direction is changed through the second helical gear 313 and the first helical gear 311, and the speed is changed through the gears, so that the deceleration effect can be achieved, and the eccentric wheel 316 has a greater driving force. It should be noted that the second helical gear 313 and the first helical gear 311 can also be replaced by two meshing worm gears and worms, as long as the above effects can be achieved;

[0053] During use, the output end of the motor 31 controls the up-and-down reciprocating movement of the eccentric wheel 316 through the transmission of the first helical gear 311, the second helical gear 313 and the third helical gear 315. Since the lever 4 always abuts against the top of the eccentric wheel 316, when the eccentric wheel 316 moves, it also drives one end of the lever 4 to move. When the eccentric wheel 316 moves upward, it drives one end of the lever 4 to move upward, so that the other end of the lever 4 presses down the upper cover 23 of the staple to achieve the stapling action. When the eccentric wheel 316 moves downward, it drives one end of the lever 4 to move downward, so that the other end of the lever 4 moves upward, and no longer applies pressure to the upper cover 23 of the staple. The upper cover 23 of the staple moves upward under the action of the return spring to reset and wait for the next stapling.

[0054] Further, a sensor 6 is also provided at a position on the base 21 corresponding to the eccentric wheel 316. A detection rod 317 is provided at a position of the eccentric wheel 316 away from the second mounting shaft 314. The detection rod 317 is arranged parallel to the second mounting shaft 314. The detection port of the sensor 6 faces upward. When the detection rod 317 is located below the second mounting shaft 314, it is directly above the sensor 6 and is on the detection path of the sensor 6. It should be noted that the electric stapler of the present invention further includes a control chip (not shown in the figure) provided in the housing 1. The sensor 6 and the motor 31 are both electrically connected to the control chip. The sensor 6 in this embodiment can be an existing conventional distance sensor, and the control chip can be a conventional control chip in the art. When the eccentric wheel 316 rotates upward, it drives one end of the lever 4 to move upward, so that the other end of the lever 4 presses down the staple upper cover 23 to achieve the stapling action. When the eccentric wheel 316 rotates downward and approaches the sensor 6 to reach a preset value, the sensor 6 emits a signal to stop the motor 31 from working, thereby realizing one stapling action. Preferably, in actual use, an electronic counter (not shown in the figure) can be additionally provided, and the sensor 6 and the electronic counter are electrically connected to the control chip to facilitate the user to know the number of stapling times.

[0055] Further, in this embodiment, a base 42 is provided on one side of the lever 4 close to the eccentric wheel 316. An elastic plate 43 is connected to the base 42. One end of the elastic plate 43 is a mounting end connected to the base 42, and the other end is a movable end that can move up and down. The movable end is correspondingly arranged at a position of the elastic plate 43 close to the eccentric wheel 316. A second bearing seat is provided on the movable end. Second lugs 44 are symmetrically arranged on the second bearing seat. A second bearing 45 is rotatably connected between the two second lugs 44. Since there is a return spring between the staple cartridge 22 and the staple upper cover 23, the third bearing 52 on the staple upper cover 23 always gives a certain return force to the lever 4 above it, so that the other end of the lever 4 can always abut against the eccentric wheel 316 through the second bearing 45, that is, the eccentric wheel 316 can abut against the bottom of the second bearing 45. The elastic plate 43 is locked to the base 42 by a first screw. The base 21 is locked to the first side plate 11 and the second side plate 12 by a second screw.

[0056] The lever-type electric stapler of the present invention has the advantages of simple structure, stable and reliable operation. The stapling mechanism 2 and the driving mechanism 3 are both arranged between the first side plate 11 and the second side plate 12, making the structure of the whole electric stapler more compact. The matching structure of the motor 31 and the gear reciprocating transmission mechanism enables the thickness of the electric stapler to be made very thin. A lever 4 is arranged between the stapling mechanism 2 and the driving mechanism 3, and the motor 31 drives the gear reciprocating transmission mechanism to drive the lever 4 to reciprocate and reciprocally press the staple upper cover 23 to realize the automatic stapling action, which can effectively reduce the working load of the motor 31 and has a good stapling effect.

[0057] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A lever-type electric stapler, comprising a housing, a binding mechanism disposed at the bottom of the housing, and a driving mechanism for driving the binding mechanism to perform a binding action, the binding mechanism comprising a base and a staple box for accommodating staples, and a staple pressing cover for cooperating with the staple box for pressing staples out of the staple box, a reset mechanism being further disposed between the staple pressing cover and the staple box, characterized in that: It also includes a lever rotatably arranged between the binding mechanism and the driving mechanism, the shell includes a first side plate and a second side plate arranged opposite to each other, the lever is rotatably arranged between the first side plate and the second side plate, the base is installed between the first side plate and the second side plate, the driving mechanism includes a motor fixed between the first side plate and the second side plate, and a gear reciprocating transmission mechanism arranged at the output end of the motor, the motor drives one end of the lever to move reciprocally up and down through the gear reciprocating transmission mechanism, one end of the lever is located above the pressure nail upper cover, and the other end is located above the gear reciprocating transmission mechanism.

2. A lever-type electric stapler according to claim 1, characterized in that: The motor is arranged horizontally, and the gear reciprocating transmission mechanism includes a driving gear arranged at the output end of the motor, a slide rail arranged on the first side plate, and a rack slidably arranged on the slide rail. The slide rail is arranged longitudinally, and the driving gear is meshed with the rack.

3. A lever-type electric stapler according to claim 2, characterized in that: A first bearing seat is provided on one side of the rack close to the lever, and first lugs are symmetrically provided on the first bearing seat. A first bearing is rotatably connected between two of the first lugs, and the first bearing abuts against the bottom of the lever.

4. A lever-type electric stapler according to claim 1, characterized in that: The motor is arranged longitudinally, and the gear reciprocating transmission mechanism includes a first bevel gear arranged at the output end of the motor, a second bevel gear rotatably arranged in the housing through a first mounting shaft, a third bevel gear rotatably arranged in the housing through a second mounting shaft, and an eccentric wheel fixedly mounted on the second mounting shaft, the first bevel gear is meshed with the second bevel gear, the second bevel gear is meshed with the third bevel gear, the first mounting shaft and the second mounting shaft are both arranged in a horizontal direction, the first mounting shaft is arranged parallel to the second mounting shaft, the first bevel gear is arranged in a horizontal direction and parallel to the first mounting shaft, and the lever is located above the eccentric wheel.

5. A lever-type electric stapler according to claim 4, characterized in that: A sensor is also provided on the base at a position corresponding to the eccentric wheel, and the sensor is electrically connected to the motor. A detection rod is provided at a position of the eccentric wheel away from the second mounting shaft, and the detection rod is on the detection path of the sensor when it is located below the second mounting shaft.

6. A lever-type electric stapler according to claim 4, characterized in that: A base is provided on the side of the lever close to the eccentric wheel, and an elastic plate is connected to the base. One end of the elastic plate is a mounting end connected to the base, and the other end is a movable end that can move up and down. A second bearing seat is provided on the movable end, and second lugs are symmetrically provided on the second bearing seat. A second bearing is rotatably connected between the two second lugs, and the eccentric wheel rests against the bottom of the second bearing.

7. A lever-type electric stapler according to claim 6, characterized in that: The movable end is correspondingly arranged at a position of the elastic plate close to the eccentric wheel, and the elastic plate is locked on the base by a first screw.

8. A lever-type electric stapler according to claim 1, characterized in that: A third bearing seat is arranged on the top of the nail box, and third lugs are symmetrically arranged on the third bearing seat. A third bearing is rotatably connected between two third lugs, and one end of the lever rests on the third bearing.

9. A lever-type electric stapler according to claim 1, characterized in that: The base is locked on the first side plate and the second side plate by a second screw.

Images