Integral gear case construction for electric scissors

Abstract

This utility model relates to an integrated gearbox structure for electric scissors, comprising a drive unit and a housing. A gear set and an output device are connected within the housing, with the gear set and output device being paired and installed. A base plate is connected to one end of the housing, and the drive unit is mounted on the base plate. The drive end of the drive unit penetrates into the housing and connects to the gear set. The housing is composed of a first cover and a second cover that are paired and inserted together. The first and second covers are connected by a connector. Both the first and second covers have a first connecting portion and a second connecting portion respectively for accommodating the gear set and the output device. The first and second connecting portions are interconnected. The gear set and output device are integrated within the first and second covers. The integrated gearbox housing structure design makes the entire gearbox more compact, effectively reducing space occupation and overall weight, and improving ease of use and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of gearbox structures, specifically to an integrated gearbox structure for electric scissors. Background Technology

[0002] Electric shears, as a highly efficient and convenient power tool, have been widely used in many fields. Driven by electricity, they can quickly and accurately complete cutting tasks, greatly improving work efficiency and reducing the labor intensity of manual operation.

[0003] Electric scissors typically consist of a motor, gearbox, and housing. The motor serves as the power source, providing driving force for the scissors; the gearbox transmits and converts the motor's power, transforming the high-speed rotation of the motor into the low-speed, high-torque motion required by the blades; the housing not only protects the internal components but also provides users with a convenient grip and operating experience in some cases.

[0004] However, existing electric scissor gearbox structures have some significant drawbacks. Some electric scissors use separate output and input gearboxes, requiring separate housings for positioning and fixing during installation. This not only increases the complexity and cumbersomeness of installation but also easily leads to installation errors, affecting the gearbox's transmission accuracy and stability. Furthermore, some existing gearbox structures are directly mounted on the electric scissor housing, resulting in a bulky mounting structure. This large housing volume increases the overall weight of the electric scissors and occupies considerable space, impacting ease of use. Therefore, developing a simple, easy-to-install, compact, and reliable integrated gearbox structure for electric scissors is of significant practical importance. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned defects and provide an integrated gearbox structure for electric scissors, so as to solve the technical problems in the background art where the existing gearbox is inconvenient to install and has a large installation volume, which affects the ease of use.

[0006] The objective of this utility model is achieved through the following means:

[0007] An integrated gearbox structure for electric scissors includes a drive unit and a housing. A gear set and an output device are connected inside the housing. The gear set is paired with the output device. A base plate is connected to one end of the housing. The drive unit is mounted on the base plate, and the drive end of the drive unit passes through the housing and connects with the gear set. The housing is composed of a first cover and a second cover that are paired and inserted together. The first cover and the second cover are fastened together by a snap-fit ​​structure and connected by a connector. A first connecting part and a second connecting part are formed between the first cover and the second cover to accommodate the gear set and the output device, respectively. The first connecting part and the second connecting part are interconnected.

[0008] Furthermore, as described above, a snap-fit ​​groove is formed on the side of the first cover near the second cover, and the snap-fit ​​groove is distributed along the edge of the first cover. A snap-fit ​​protrusion is formed on the side of the second cover to be inserted and held in place by the snap-fit ​​groove, and the snap-fit ​​protrusion is distributed along the edge of the second cover.

[0009] The snap-fit ​​grooves and protrusions allow for quick and accurate mating and insertion of the first and second housing covers, further simplifying the installation process and improving efficiency. Simultaneously, this snap-fit ​​structure enhances the stability of the housing, ensuring the gearbox's installation stability.

[0010] Furthermore, as described above, the first and second shell covers are respectively provided with a first mounting hole and a second mounting hole, and a connector can be inserted into the first and second mounting holes in sequence for connection and installation.

[0011] The design of the first and second mounting holes, along with the connection method of the connectors, ensures that the first and second shell covers are securely connected, guaranteeing the integrity and stability of the outer casing. This connection method is simple, reliable, and easy to operate and maintain.

[0012] Furthermore, as described above, the first cover and the second cover are respectively provided with a first retaining portion and a second retaining portion. The first cover and the second cover are paired and snapped together, and are held in place by a locking block. The locking block can apply a clamping force to the first cover and the second cover.

[0013] The arrangement of the first and second retaining parts, along with the retaining action of the retaining block, further enhances the stability of the connection between the first and second housing covers. The clamping force applied by the retaining block ensures that the housing is not easily loosened or separated when subjected to external forces, thus improving the reliability and durability of the gearbox.

[0014] Furthermore, as described above, the first and second housing covers have a first opening communicating with the first connecting portion, and the first and second housing covers have a second opening communicating with the second connecting portion. The output device is mounted on the second connecting portion, and one end of the output device extends outward through the second opening.

[0015] The design of the first and second openings allows the gear set and output device to be easily installed inside the housing, and one end of the output device can extend outward through the second opening, facilitating connection with other components of the electric scissors, ensuring the compactness of the gearbox and improving its ease of use.

[0016] Further as described above, the substrate includes a support portion and a protrusion disposed on the support portion. The size of the protrusion is smaller than that of the support portion, and the protrusion can extend into the first opening and toward the first connecting portion. A clearance through hole is provided on the substrate, which passes through the support portion and the protrusion. The substrate is inserted and connected to the first opening through the protrusion. The driving member is connected to the support portion. The driving member is composed of a motor, so that the output shaft of the driving member extends through the clearance through hole toward the gear set. The output shaft of the driving member is connected to a driving gear that meshes with the gear set.

[0017] The base plate design allows the drive unit to be easily mounted on the housing, and a secure connection between the base plate and the housing is achieved through the insertion connection of the protrusion and the first opening. The output shaft of the drive unit extends through the clearance hole to the gear set and meshes with the gear set through the drive gear, ensuring smooth and efficient power transmission, simplifying the installation process, and improving the transmission stability and durability of the gearbox.

[0018] Further as described above, the gear set includes an internal gear ring, a drive shaft, a drive gear, and a reduction gear set. The internal gear ring has a hollow central hole, and the inner wall of the central hole has internal teeth. The reduction gear set is installed in the central hole and includes a rotating disk and multiple reduction gears. The multiple reduction gears are installed on one side of the rotating disk. The reduction gears mesh with the internal teeth and the drive gear. One end of the drive shaft is connected to the rotating disk, and the other end of the drive shaft passes through the first connecting part and is connected to the drive gear.

[0019] The gear set design allows power to be transmitted from the drive gear to the reduction gear set, and then from the drive shaft and drive gear to the output device, achieving both speed reduction and torque increase. The rational layout and meshing connection of the internal gear ring, drive shaft, drive gear, and reduction gear set ensures the transmission accuracy and stability of the gearbox.

[0020] Further as described above, the output device is installed in the second connecting part. The output device includes an output shaft and an output gear. The output gear is installed in the second connecting part and is coaxially connected with the output shaft. The output gear is meshed with the transmission gear. One end of the output shaft extends outward through the second opening.

[0021] The output device is designed to transmit power via a transmission gear to an output gear, and then via an output shaft to the cutting component of the electric scissors, thus achieving the cutting function. The coaxial connection between the output gear and the output shaft, as well as the design of one end of the output shaft extending outward through a second opening, ensures smooth and efficient power transmission while improving ease of use.

[0022] Furthermore, as described above, both the first and second shell covers are provided with coaxially connected holes, and the substrate is provided with limiting holes that are coaxially matched with the connecting holes. A positioning pin can pass through the first shell cover, the substrate, and the second shell cover for positioning connection, so that the positioning pin passes through the connecting holes and the limiting holes.

[0023] The design of the connecting holes and limiting holes, along with the positioning and connecting function of the positioning pins, enables the first cover, the base plate, and the second cover to be precisely aligned and connected, further improving the assembly accuracy and stability of the gearbox.

[0024] Furthermore, as described above, the side of the first cover has a protruding positioning post, and the side of the second cover has a positioning hole for insertion and assembly with the positioning post.

[0025] The positioning pins and holes allow for quick and accurate positioning of the first and second housing covers during mating and insertion, further simplifying the installation process and improving efficiency. This positioning structure also enhances the stability of the connection between the first and second housing covers.

[0026] The beneficial effects of this utility model are as follows: By designing the outer shell as a pairing and inserting structure consisting of a first shell cover and a second shell cover, and using a snap-fit ​​structure and connecting parts, the assembly process of the gearbox is simplified. Compared with the complex installation method of traditional split gearboxes that require separate positioning and fixing of the output and input ends, this integrated structure reduces the steps and complexity of separate assembly, reduces the risk of installation errors, and thus improves installation efficiency and transmission accuracy. Since the gear set and output device are integrated into one shell and interconnected through the first and second connecting parts, it helps to maintain precise alignment and stable cooperation between the gear set and the output device, avoiding the positioning deviation and loosening problems that may occur in the split structure, thereby improving the transmission accuracy and operational stability of the gearbox. The integrated gearbox structure design makes the entire gearbox more compact, effectively reducing the space occupied, reducing the overall weight of the electric scissors, and improving the convenience and flexibility of use. Attached Figure Description

[0027] Figure 1 This is a perspective view of the first direction in this embodiment;

[0028] Figure 2 This is a perspective view of the second direction in this embodiment;

[0029] Figure 3 This is a schematic diagram of the connection structure of the first shell cover in this embodiment;

[0030] Figure 4 This is a schematic diagram of the connection structure of the second shell cover in this embodiment;

[0031] Figure 5 This is a schematic diagram of the connection structure between the gear set and the output device in this embodiment;

[0032] Figure 6 This is a schematic diagram of the connection structure of the driving component in this embodiment;

[0033] Figure 7 This is a schematic diagram of the connection structure of the gear set in this embodiment;

[0034] The reference numerals in the figure are as follows:

[0035] 100-Outer shell, 101-First shell cover, 1011-Snap-fit ​​groove, 1012-First mounting hole, 1013-First holding part, 1014-Positioning post, 102-Second shell cover, 1021-Snap-fit ​​protrusion, 1022-Second mounting hole, 1023-Second holding part, 1024-Positioning hole, 103-First connecting part, 104-Second connecting part, 105-Snap-fit ​​groove, 106-First opening, 107-Second opening, 108-Connecting hole;

[0036] 200-Gear set, 201-Internal gear ring, 202-Drive shaft, 203-Drive gear, 204-Reduction gear set, 2041-Rotating disk, 2042-Reduction gear;

[0037] 300-Output device, 301-Output shaft, 302-Output gear; 400-Base plate, 401-Support part, 402-Protrusion part, 403-Allowing through hole, 404-Limiting hole; 500-Card block, 600-Positioning pin, 700-Driver, 800-Connector, 900-Drive gear. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following describes the solution in further detail with reference to the accompanying drawings and embodiments.

[0040] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] In this embodiment, refer to Figures 1-7 The specific implementation of the integrated gearbox structure for electric scissors includes a drive unit 700 and a housing 100. A gear set 200 and an output device 300 are connected inside the housing 100. The gear set 200 is paired with the output device 300. One end of the housing 100 is connected to a base plate 400. The drive unit 700 is mounted on the base plate 400, and the drive end of the drive unit 700 passes into the housing 100 and is connected to the gear set 200. The housing 100 is composed of a first cover 101 and a second cover 102 that are paired and inserted. The first cover 101 and the second cover 102 are paired and fastened by a snap-fit ​​structure and connected by a connector 800. The first cover 101 and the second cover 102 each have a first connecting part 103 and a second connecting part 104 for accommodating the gear set 200 and the output device 300, respectively. The first connecting part 103 and the second connecting part 104 are interconnected.

[0042] Specifically, in this embodiment, the first cover 101 and the second cover 102 are injection molded from plastic.

[0043] Specifically, the outer casing 100 is formed by the mating and insertion of the first casing 101 and the second casing 102. The interior recesses of the first casing 101 and the second casing 102 form a first connecting portion 103 and a second connecting portion 104, respectively accommodating the gear set 200 and the output device 300. After the gear set 200 and the output device 300 are assembled, the first casing 101 is laid flat, allowing the gear set 200 and the output device 300 to be inserted into the first connecting portion 103 and the second connecting portion 104 of the first casing 101. This allows the transmission gear 203 to mesh with the output gear 302. The pre-assembly of the gear set 200 and the output device 300 allows for direct installation onto the first connecting portion 103 and the second connecting portion 104, simplifying the casing installation structure, achieving an integrated gearbox structure, reducing the assembly process, lowering installation errors, and improving the transmission accuracy and stability of the gearbox. Simultaneously, this compact structure reduces the size of the gearbox and improves ease of use.

[0044] Reference Figures 1-3 The first cover 101 has a snap-fit ​​groove 1011 formed on the side near the second cover 102. The snap-fit ​​groove 1011 is distributed along the edge of the first cover 101. The second cover 102 has a snap-fit ​​protrusion 1021 formed on the side for inserting and holding into the snap-fit ​​groove 1011. The snap-fit ​​protrusion 1021 is distributed along the edge of the second cover 102.

[0045] The snap-fit ​​groove 1011 and snap-fit ​​protrusion 1021 enable the first cover 101 and the second cover 102 to be quickly and accurately paired and inserted, further simplifying the installation process and improving installation efficiency. At the same time, this snap-fit ​​structure also enhances the stability of the outer casing 100, ensuring the stability of the gearbox installation.

[0046] When the gear set 200 and the output device 300 are installed in the corresponding connecting parts on the first housing cover 101 or the second housing cover 102, the first housing cover 101 and the second housing cover 102 can be quickly connected by the matching insertion of the snap-fit ​​protrusion 1021 and the snap-fit ​​groove 1011, thereby completing the assembly and connection of the gear set 200 and the output device 300, and the snap-fit ​​of the first housing cover 101 and the second housing cover 102 forms the outer shell.

[0047] After the gear set 200 and the output device 300 are pre-assembled, they can be installed in pairs between the first cover 101 and the second cover 102, which makes it easy to control the position of each component. During the installation process, each component is not easy to fall off, and there is no need to deliberately maintain the specific position of each component, so as to facilitate assembly.

[0048] The first cover 101 and the second cover 102 are respectively provided with a first mounting hole 1012 and a second mounting hole 1022. The connector 800 can be inserted into the first mounting hole 1012 and the second mounting hole 1022 in sequence for connection and installation.

[0049] The first mounting hole 1012 and the second mounting hole 1022, along with the connection method of the connector 800, ensure that the first cover 101 and the second cover 102 are firmly connected together, guaranteeing the integrity and stability of the outer casing 100. This connection method is simple, reliable, and easy to operate and maintain.

[0050] Specifically, the outer sides of the first cover 101 and the second cover 102 have protruding mounting portions, and the first mounting hole 1012 and the second mounting hole 1022 are respectively opened on the mounting portions of the first cover 101 and the second cover 102, so that the connector 800 can be inserted and connected through the mounting hole of the first cover 101 or the second cover 102.

[0051] The first cover 101 and the second cover 102 are respectively formed with a first retaining part 1013 and a second retaining part 1023. The first cover 101 and the second cover 102 are paired and snapped together, and are held by the first retaining part 1013 and the second retaining part 1023 by the locking block 500. The locking block 500 can apply a clamping force to the first cover 101 and the second cover 102.

[0052] The card block 500 is a metal sheet. The two sides of the metal sheet are bent to form a bent part for insertion into the card slot, so as to clamp the first card holding part 1013 and the second card holding part 1023.

[0053] Preferably, the card block 500 is made of stainless steel sheet or iron sheet.

[0054] Specifically, the first retaining part 1013 and the second retaining part 1023 are disposed on the top of the first housing cover 101 and the second housing cover 102. The sides of the first retaining part 1013 and the second retaining part 1023 are formed with retaining grooves 105 communicating with their end faces. The retaining block 500 is inserted from the end face of the housing cover, and the two sides of the buckle are inserted along the retaining grooves 105, thus completing the clamping connection between the first retaining part 1013 and the second retaining part 1023. This further enhances the connection stability between the first housing cover 101 and the second housing cover 102. The clamping force applied by the retaining block 500 ensures that the housing 100 is not easily loosened or separated when subjected to external forces, improving the reliability and durability of the gearbox.

[0055] The first cover 101 and the second cover 102 have a first opening 106 that communicates with the first connecting portion 103, and the first cover 101 and the second cover 102 have a second opening 107 that communicates with the second connecting portion 104. The output device 300 is installed on the second connecting portion 104, and one end of the output device 300 extends outward through the second opening 107.

[0056] The first opening 106 and the second opening 107 allow the gear set 200 and the output device 300 to be easily installed inside the housing 100. One end of the output device 300 can extend outward through the second opening 107, facilitating connection with other components of the electric scissors, ensuring the compactness of the gearbox, and improving its ease of use. The first opening 106 is for connecting the drive unit 700, and the second opening 107 is for connecting the cutting device of the electric scissors.

[0057] Reference Figure 6 The substrate 400 includes a support portion 401 and a protrusion 402 disposed on the support portion 401. The size of the protrusion 402 is smaller than that of the support portion 401, and the protrusion 402 can extend into the first opening 106 and reach the first connecting portion 103. The substrate 400 is provided with a clearance through hole 403 that passes through the support portion 401 and the protrusion 402. The substrate 400 is inserted and connected to the first opening 106 through the protrusion 402. A gasket is provided between the protrusion 402 and the reduction gear. The drive member 700 is connected to the support portion 401. The drive member 700 is composed of a motor, so that the output shaft 301 of the drive member 700 extends into the gear set 200 through the clearance through hole 403. The output shaft 301 of the drive member 700 is connected to a drive gear 900 that meshes with the gear set 200.

[0058] The design of the base plate 400 allows the drive unit 700 to be easily installed on the bottom of the housing 100, and a stable connection between the base plate 400 and the housing 100 is achieved through the insertion connection between the protrusion 402 and the first opening 106. The output shaft 301 of the drive unit 700 extends through the clearance hole 403 to the gear set 200, and meshes with the gear set 200 through the drive gear 900, ensuring smooth and efficient power transmission, simplifying the installation process, and improving the transmission stability and durability of the gearbox.

[0059] Reference Figure 3 The first cover 101 and the second cover 102 are both provided with coaxially connected connecting holes 108. The substrate 400 is provided with a limiting hole 404 that is coaxially matched with the connecting hole 108. The positioning pin 600 can pass through the first cover 101, the substrate 400 and the second cover 102 for positioning connection. The positioning pin 600 is inserted in the connecting hole 108 and the limiting hole 404.

[0060] The connection hole 108 and the limiting hole 404, as well as the positioning and connecting function of the positioning pin 600, enable the first cover 101, the base plate 400 and the second cover 102 to be precisely aligned and connected, further improving the assembly accuracy and stability of the gearbox.

[0061] Reference Figure 7 The gear set 200 includes an internal gear ring 201, a drive shaft 202, a drive gear 203, and a reduction gear set 204. The internal gear ring 201 has a hollow central hole, and the inner wall of the central hole has an internal tooth portion. The reduction gear set 204 is installed in the central hole and includes a rotating disk 2041 and multiple reduction gears 2042. The multiple reduction gears 2042 are installed on one side of the rotating disk 2041. The reduction gears 2042 mesh with the internal tooth portion and the drive gear 900. One end of the drive shaft 202 is connected to the rotating disk 2041, and the other end of the drive shaft 202 passes through the first connecting part 103 and is connected to the drive gear 203.

[0062] Specifically, in this embodiment, the outer side of the internal gear ring 201 is formed with a protruding insertion protrusion, and the inner wall of the first connecting part 103 is provided with an insertion groove that fits and matches with the insertion protrusion.

[0063] The design of gear set 200 allows power to be transmitted to reduction gear set 204 via drive gear 900, and then to output device 300 via drive shaft 202 and drive gear 203, achieving the functions of speed reduction and torque increase. The reasonable layout and meshing connection of internal gear ring 201, drive shaft 202, drive gear 203 and reduction gear set 204 ensure the transmission accuracy and stability of the gearbox.

[0064] Specifically, refer to Figure 7 In some other embodiments, the reduction gear group 204 is provided in three sets, and the three sets of reduction gear groups 204 are installed and distributed in a stacked manner. Specifically, the reduction gear group 204 includes a first-stage reduction gear group 204, a second-stage reduction gear group 204 and a third-stage reduction gear group 204, which are stacked in sequence from the bottom to the output device 300, that is, the first layer is the first-stage reduction gear group 204, the second layer is the second-stage reduction gear group 204 and the third layer is the third-stage reduction gear group 204.

[0065] The reduction gears 2042 all mesh with the internal teeth of the internal gear ring 201. At the same time, the second and third reduction gear sets 204 are provided with connecting gears that mesh with the reduction gears 2042. Specifically, the three reduction gears 2042 in the second layer and the three reduction gears 2042 in the third layer are arranged in a circumferential array along the connecting gears of the second and third layers, respectively. The drive gear 900 meshes with the three reduction gears 2042 in the first reduction gear set 204, so that the three reduction gears 2042 are arranged in a circumferential array around the drive gear 900.

[0066] The output device 300 is installed in the second connecting part 104. The output device 300 includes an output shaft 301 and an output gear 302. The output gear 302 is installed in the second connecting part 104 and is coaxially connected with the output shaft 301. The output gear 302 is meshed with the transmission gear 203. One end of the output shaft 301 extends outward through the second opening 107.

[0067] The design of the output device 300 allows power to be transmitted to the output gear 302 via the transmission gear 203, and then to the cutting component of the electric scissors via the output shaft 301, thus realizing the cutting function. The coaxial connection between the output gear 302 and the output shaft 301, and the design of one end of the output shaft 301 extending outward through the second opening 107, ensure smooth and efficient power transmission, while also improving ease of use.

[0068] The first cover 101 has a protruding positioning post 1014 on its side, and the second cover 102 has a positioning hole 1024 on its side for insertion and assembly with the positioning post 1014.

[0069] The positioning pins 1014 and positioning holes 1024 enable the first cover 101 and the second cover 102 to be quickly and accurately positioned during mating and insertion, further simplifying the installation process and improving installation efficiency. At the same time, this positioning structure also enhances the stability of the connection between the first cover 101 and the second cover 102.

[0070] The specific installation structure in this embodiment is as follows:

[0071] After assembling and installing the gear set 200 and the output device 300 respectively, the gear set 200 is installed in the first connecting part 103, and the output device 300 is installed in the second connecting part 104. The transmission gear 203 of the gear set 200 is meshed with the output gear 302 of the output device 300, thereby quickly completing the connection between the gear and the output device 300. The base plate 400 is inserted into the first opening 106 through the protrusion 402, and the end of the protrusion 402 abuts against the end face of the internal gear ring 201. At the same time, the limiting hole 404 is coaxially paired with the connecting hole 108 on the first shell cover 101 and the second shell cover 102. The first shell cover 101 and the second shell cover 102 are paired and inserted through the snap-fit ​​structure. At this time, the positioning pin 600 is inserted into the connecting hole 108 and the limiting hole 404. 04, to complete the connection to the substrate 400. At the same time, the locking block 500 passes through the first locking part 1013 and the second locking part 1023, so that the locking block 500 can apply clamping force to the first shell cover 101 and the second shell cover 102. The bolt passes through the second mounting hole 1022 and is threadedly connected to the first mounting hole 1012, so that the first shell cover 101 and the second shell cover 102 form a shell structure. The driving member 700 is installed on the bottom of the substrate 400, and the output shaft 301 of the driving member 700 is connected to the driving gear 900, so that the driving gear 900 is engaged with the reduction gear 2042 in the gear set 200. Through the setting of the left and right first and second shell covers 102, the gear set 200 and the shell of the output device 300 are integrated, improving the convenience of installation and reducing the overall size.

[0072] This invention integrates the gear set 200 and the output device 300 within the first and second housing covers 101 and 102 through injection molding, and connects them through the first connecting part 103 and the second connecting part 104. This helps maintain precise alignment and stable cooperation between the gear set 200 and the output device 300, thereby improving the transmission accuracy and operational stability of the gearbox. The integrated gearbox housing structure makes the entire gearbox more compact, effectively reducing the space occupied, lowering the overall weight of the electric scissors, and improving the convenience and flexibility of use.

[0073] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An integrated gearbox structure for electric scissors, comprising a drive unit and a housing, wherein a gear set and an output device are connected inside the housing, the gear set is paired with the output device, a base plate is connected to one end of the housing, the drive unit is mounted on the base plate, and the drive end of the drive unit penetrates into the housing and is connected to the gear set, characterized in that: The outer casing is composed of a first cover and a second cover that are paired and inserted together. The first cover and the second cover are fastened together by a snap-fit ​​structure and connected by a connector. Both the first cover and the second cover have a first connecting part and a second connecting part for accommodating the gear set and the output device, respectively. The first connecting part and the second connecting part are interconnected.

2. The integrated gearbox structure for electric scissors according to claim 1, characterized in that: The first cover has a snap-fit ​​groove on its side near the second cover, and the snap-fit ​​groove is distributed along the edge of the first cover. The second cover has a snap-fit ​​protrusion on its side that is inserted into the snap-fit ​​groove and is distributed along the edge of the second cover.

3. The integrated gearbox structure for electric scissors according to claim 2, characterized in that: The first and second shell covers are respectively provided with a first mounting hole and a second mounting hole, and a connector can be inserted into the first and second mounting holes for connection and installation.

4. The integrated gearbox structure for electric scissors according to claim 3, characterized in that: The first and second shell covers are respectively formed with a first retaining part and a second retaining part. The first and second shell covers are paired and snapped together, and are held in place by a locking block. The locking block can apply a clamping force to the first and second shell covers.

5. The integrated gearbox structure for electric scissors according to any one of claims 1-4, characterized in that: The first and second housings have a first opening communicating with the first connecting portion, and the first and second housings have a second opening communicating with the second connecting portion. The output device is installed in the second connecting portion, and one end of the output device extends outward through the second opening.

6. The integrated gearbox structure for electric scissors according to claim 5, characterized in that: The substrate includes a support portion and a protrusion disposed on the support portion. The size of the protrusion is smaller than that of the support portion, and the protrusion can extend into the first opening and reach the first connecting portion. A clearance through hole is provided on the substrate, which passes through the support portion and the protrusion. The substrate is inserted and connected to the first opening through the protrusion. The driving member is connected to the support portion. The driving member is composed of a motor, so that the output shaft of the driving member extends into the gear set through the clearance through hole. The output shaft of the driving member is connected to a driving gear that meshes with the gear set.

7. The integrated gearbox structure for electric scissors according to claim 6, characterized in that: The gear set includes an internal gear ring, a drive shaft, drive gears, and a reduction gear set. The internal gear ring has a hollow central hole, and the inner wall of the central hole has internal teeth. The reduction gear set is installed in the central hole and includes a rotating disk and multiple reduction gears. The multiple reduction gears are installed on one side of the rotating disk and are meshed with the internal teeth and drive gears. One end of the drive shaft is connected to the rotating disk, and the other end of the drive shaft passes through the first connecting part and is connected to the drive gear.

8. The integrated gearbox structure for electric scissors according to claim 7, characterized in that: The output device is installed in the second connecting part. The output device includes an output shaft and an output gear. The output gear is installed in the second connecting part and is coaxially connected with the output shaft. The output gear is meshed with the transmission gear. One end of the output shaft extends outward through the second opening.

9. The integrated gearbox structure for electric scissors according to any one of claims 1-4, characterized in that: Both the first and second shell covers have coaxially connected connection holes, and the substrate has a limiting hole that is coaxially matched with the connection hole. A positioning pin can pass through the first shell cover, the substrate, and the second shell cover for positioning connection, so that the positioning pin passes through the connection hole and the limiting hole.

10. The integrated gearbox structure for electric scissors according to any one of claims 1-4, characterized in that: The first cover has a raised positioning post on its side, and the second cover has a positioning hole on its side for insertion and assembly with the positioning post.

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