Portable electric scissors

Abstract

The portable electric scissors comprise a columnar shell, a gear motor assembly, a driving key, a lower cam, an upper cam and a tong head are sequentially arranged in the columnar shell, an output shaft is formed on the gear motor assembly, the output shaft is connected to the driving key, the driving key is clamped into the lower cam, and the lower cam is connected with the upper cam. Inclined slopes which extend in the annular direction and are attached to each other are formed in the connecting positions of the lower cam and the upper cam respectively, and a horn mouth for clamping the tail of the tong head is formed in the end, close to the tong head, of the upper cam. The utility model is driven by the 12V brushless motor, has the advantages of small volume, quick response, light weight and the like, and is suitable for being used under various or complex working conditions.

Description

Technical Field

[0001] The present application relates to the field of scissors, and in particular to a portable electric scissors. Background Art

[0002] The most widely used pneumatic scissors at present require certain basic equipment to be used in conjunction with the work site. Pneumatic scissors use compressed air as power, and air compressors, air storage tanks, compressed air dryers, air pipes and other equipment are required on site, which invisibly increases the workload of workers. There are two types of existing handheld scissors, one is purely manual, and the other is pneumatic scissors powered by compressed air. Purely manual scissors are not efficient, and manual operators are prone to fatigue and cannot complete large amounts of fast and repetitive work; pneumatic scissors can replace manpower to complete the above work to a certain extent, but certain basic conditions are required, and corresponding equipment and site coordination are required. For example, compressed air that meets the pressure requirements is required, and the compressed air needs to be stored, dried, and transported to the corresponding parts of the pneumatic scissors through pipelines before the pneumatic scissors can be used normally. To a certain extent, the use of pneumatic scissors is also subject to corresponding restrictions. Utility Model Content

[0003] The utility model aims to provide a portable electric scissors, which is driven by a 12V brushless motor and has the advantages of small size, fast response, light weight, etc., and is suitable for use in various or complex working conditions.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0005] The embodiment of the present application discloses a portable electric scissors, comprising a columnar shell, wherein a reduction motor assembly, a driving key, a lower cam, an upper cam and a pliers head are sequentially arranged inside the columnar shell, wherein the reduction motor assembly is formed with an output shaft, wherein the output shaft is connected to the driving key, wherein the driving key is clamped in the lower cam, wherein inclined slopes extending in a circumferential direction and fitting each other are respectively formed at the junction of the lower cam and the upper cam, wherein a bell mouth for clamping the tail of the pliers head is formed at one end of the upper cam close to the pliers head,

[0006] The output shaft of the reduction motor assembly rotates, driving the driving key, which in turn drives the lower cam to rotate, pushing the upper cam to move axially, driving the bell mouth to clamp the tail of the pliers head, and finally achieving shearing of the pliers head.

[0007] Preferably, in the above-mentioned portable electric scissors, the reduction motor assembly is arranged on a motor fixing seat, and the motor fixing seat is installed inside the columnar shell.

[0008] Preferably, in the above-mentioned portable electric scissors, an aviation plug socket is formed at the tail of the reduction motor assembly.

[0009] Preferably, in the above-mentioned portable electric scissors, a return spring is provided between the upper cam and the pliers head.

[0010] Preferably, in the above-mentioned portable electric scissors, the pliers head includes two pliers arms connected by rivets, a central shaft is inserted into the axis of the rivet, the central shaft is installed at the end of the columnar shell, and a sleeve is arranged between the central shaft and the columnar shell.

[0011] Preferably, in the above-mentioned portable electric scissors, a switch protection film is provided on the columnar shell, a start switch is provided inside the switch protection film, and the start switch is connected to the control chip and then connected to the reduction motor assembly.

[0012] Preferably, the above-mentioned portable electric scissors further include a sensing component for sensing the position of the upper cam.

[0013] Preferably, in the above-mentioned portable electric scissors, a gasket is arranged between the motor fixing seat and the lower cam, and a yield spring is arranged between the motor fixing seat and the gasket.

[0014] Preferably, in the above-mentioned portable electric scissors, the cylindrical shell includes two semicircular shells divided along the axial direction.

[0015] Compared with the prior art, the utility model has the advantages that the scissors body is driven by a 12V brushless motor, the body has an outer diameter of 36mm and a total length of 189.5mm. The electric scissors of this technical solution have more diverse working conditions, simpler working content, simpler working site, and do not need to be equipped with a series of equipment for compressed air. This technical solution has the advantages of small size, light weight, easy use, safety and reliability, and can be used by plugging in electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 Shown is a schematic diagram of a portable electric scissors in an embodiment of the utility model;

[0018] Figure 2 Shown is a disassembled view of the portable electric scissors in an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to describe the technical solutions in the embodiments of the utility model in detail. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Combination Figure 1-2 As shown, the portable electric scissors 100 include a cylindrical shell 101, inside which are arranged a reduction motor assembly 102, a drive key 103, a lower cam 104, an upper cam 105 and a pliers head 106 in sequence, the reduction motor assembly 102 is formed with an output shaft 107, the output shaft 107 is connected to the drive key 103, the drive key 103 is snapped into the lower cam 104, and the lower cam 104 and the upper cam 105 are respectively formed with inclined slopes 108 extending in a circumferential direction and fitting each other at the junction, and the upper cam 105 is formed with a trumpet mouth (not shown) at one end of the upper cam 105 close to the pliers head 106 for clamping the tail of the pliers head 106, and the reduction motor assembly 102 is arranged on a motor fixing seat 109, and the motor fixing seat 109 is installed inside the cylindrical shell 101.

[0021] The output shaft 107 of the reduction motor assembly 102 rotates, driving the driving key 103, and then driving the lower cam 104 to rotate, pushing the upper cam 105 to move axially, driving the tail of the bell-mouth clamping pliers head 106, and finally achieving shearing of the pliers head 106.

[0022] In this embodiment, the inner diameter of the bell mouth gradually decreases, and the tail of the pliers head is originally in an open state when it is inserted into the bell mouth. As the bell mouth moves toward the front end of the pliers head, the tail enters the deep part of the bell mouth, and then the tail of the pliers head is gradually tightened, and then the head of the pliers head is driven to achieve shearing. The scissors body is driven by a 12V brushless motor, the body has an outer diameter of 36mm and a total length of 189.5mm. The working conditions of the electric scissors of this technical solution are more abundant, the work content is simpler, the work site is more concise, and a series of equipment for compressed air is not required. This technical solution has the advantages of small size, light weight, easy use, safety and reliability, and can be used by plugging in.

[0023] Furthermore, an aviation plug female socket 110 is formed at the tail of the reduction motor assembly 102 .

[0024] In this embodiment, it can be used just by plugging in electricity.

[0025] Furthermore, a return spring 111 is provided between the upper cam 105 and the clamp head 106. A sensing component 119 is also included to sense the position of the upper cam 105.

[0026] In this embodiment, after one shearing is completed, the chip controls the motor to stop rotating, the return spring pushes the upper cam, and the clamp head opens to prepare for the next shearing.

[0027] Furthermore, the clamp head 106 includes two clamp arms 113 connected by a rivet 112 , a central shaft 114 is inserted into the axis of the rivet 112 , the central shaft 114 is installed at the end of the columnar shell 101 , and a shaft sleeve 115 is arranged between the central shaft 114 and the columnar shell 101 .

[0028] In this embodiment, simple connection is achieved, which is stable and reliable.

[0029] Furthermore, a switch protection film 116 is provided on the cylindrical housing 101 , and a start switch 117 is provided inside the switch protection film 116 . The start switch 117 is connected to the control chip 118 and then connected to the reduction motor assembly 102 .

[0030] In this embodiment, the control chip can adjust the output force to achieve optimal shearing.

[0031] Furthermore, a gasket 120 is provided between the motor fixing seat 109 and the lower cam 104 , and a yield spring 121 is provided between the motor fixing seat 109 and the gasket 120 .

[0032] Furthermore, the cylindrical housing 101 includes two semicircular shells 122 divided along the axial direction.

[0033] In this embodiment, assembly is achieved.

[0034] In this technical solution, after the assembly is completed and the power supply is plugged in, the 220V AC power is converted into 12V DC power after being converted by the 12V power adapter; the start switch is pressed, the reduction motor rotates counterclockwise, and the low-speed and high-torque torque is output from the output shaft by the reduction gear reduction and torque increase method. At this time, the output shaft of the reduction gear rotates around the axis, and the output shaft of the reduction gear box is connected to the drive key, driving the lower cam to rotate around the center of the reduction motor, and then converting the torque around the center of the reduction motor into an upward thrust, pushing the upper cam to move along the axial direction of the reduction motor; at this time, the tail of the clamp head contacts the upper cam, pushing the clamp head to perform a shearing action, at this time the reset spring is gradually compressed, and the yield spring is also gradually compressed, and when the clamp head is completely closed, the sheared object is also cut off, the shearing action is completed, and the upper cam also rises to the highest point, the reset spring stretches, and pushes the upper cam to fall back quickly, the induction component receives the signal, quickly cuts off the power supply, the reduction motor stops working, the upper cam and the tail of the clamp head are separated, the clamp head opens, and the shearing action of the entire cycle is completed; wait for the next start signal to intervene.

[0035] The benefits of this technical solution:

[0036] First of all, after the pliers head is processed by our company's special process, compared with the existing pliers heads on the market, our company's pliers heads are more flexible to rotate, the cutting edge is sharper and more wear-resistant; the maximum cutting angle of this pliers head is 25°, which is more suitable for a variety of cutting scenarios. The body diameter is 34mm, with a more comfortable grip. The cutting angle is adjusted as the wrist rotates, and the pliers head can better fit the cutting part, making the cutting part smoother and flatter.

[0037] Secondly, compared with traditional pneumatic scissors, this type of electric scissors has richer application scenarios and does not require a series of auxiliary tools, such as high-pressure air pipes, compressed air storage tanks, air compressors, compressed air dryers and other equipment; this type of electric scissors only needs to be equipped with a 12V power adapter to convert 220V AC power into 12V DC power to start working and achieve long battery life; coupled with the 34mm comfortable grip and the lightweight design of the product, it can greatly reduce wrist fatigue caused by long-term holding, thereby improving work efficiency and fun.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A portable electric scissors, characterized in that: The utility model comprises a columnar shell, wherein a reduction motor assembly, a driving key, a lower cam, an upper cam and a clamp head are sequentially arranged inside the columnar shell, wherein the reduction motor assembly is formed with an output shaft, wherein the output shaft is connected to the driving key, wherein the driving key is clamped in the lower cam, wherein inclined slopes extending in a circumferential direction and fitting each other are respectively formed at the joints of the lower cam and the upper cam, and a bell mouth for clamping the tail of the clamp head is formed at one end of the upper cam close to the clamp head, The output shaft of the reduction motor assembly rotates, driving the driving key, which in turn drives the lower cam to rotate, pushing the upper cam to move axially, driving the bell mouth to clamp the tail of the pliers head, and finally achieving shearing of the pliers head.

2. The portable electric scissors according to claim 1, characterized in that: The reduction motor assembly is arranged on a motor fixing seat, and the motor fixing seat is installed inside the columnar housing.

3. The portable electric scissors according to claim 1, characterized in that: An aviation plug female socket is formed at the tail of the reduction motor assembly.

4. The portable electric scissors according to claim 1, characterized in that: A return spring is arranged between the upper cam and the clamp head.

5. The portable electric scissors according to claim 1, characterized in that: The clamp head comprises two clamp arms connected by rivets, a central shaft is inserted into the axis of the rivet, the central shaft is installed at the end of the columnar shell, and a shaft sleeve is arranged between the central shaft and the columnar shell.

6. The portable electric scissors according to claim 1, characterized in that: A switch protection film is arranged on the columnar shell, a start switch is arranged inside the switch protection film, and the start switch is connected to the control chip and then connected to the reduction motor assembly.

7. The portable electric scissors according to claim 1, characterized in that: A sensing component is also included to sense the position of the upper cam.

8. The portable electric scissors according to claim 2, characterized in that: A gasket is arranged between the motor fixing seat and the lower cam, and a yield spring is arranged between the motor fixing seat and the gasket.

9. The portable electric scissors according to claim 1, characterized in that: The cylindrical shell includes two semicircular shells divided along the axial direction.

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