Motor and transmission case cooperation locking structure

Abstract

The utility model relates to a kind of motor and transmission box cooperation locking structure. It solves the technical problems such as the stable difference of the connection of existing motor and transmission box. Including motor body and the transmission box body being set at the one end of motor body, transmission box body is provided with transmission box cover plate at the open end of the one end towards motor body, transmission box cover plate is equipped with several strip-shaped clamping holes, the one end of motor body is movably provided with several respectively one-to-one corresponding through clamping hole and with the clamping of transmission box cover plate Clamping piece, clamping piece is connected with the radial elastic activity unlocking mechanism being set in the inside of motor body, transmission box is rotatably provided with locking rod, and locking rod is equipped with locking assembly when locking rod circumferential rotation can the axial positioning of clamping piece in clamping hole. Advantage lies in: locking assembly can guarantee the clamping stability between motor body and transmission box, effectively prevent motor body vibration and produce drop-off phenomenon. Through clamping piece and transmission hole can be convenient for motor body and transmission box clamping connection, improve clamping efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric curtain equipment, specifically relating to a locking structure for the cooperation between a motor and a transmission box. Background Technology

[0002] With the rapid development of smart home technology, motorized curtain systems are increasingly widely used in homes, hotels, office buildings, and other places due to their convenience and intelligent advantages. The motor, as the core power source, drives the curtains to open and close via a transmission box. However, the existing connection structure between the motor and the transmission box is overly complex, resulting in low efficiency in assembly and disassembly. Furthermore, the vibration generated by existing motors during operation can lead to loosening of the connection structure and potential motor detachment over long-term use.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a motor-transmission box snap-fit ​​structure [202420246218.4], which includes a motor housing and a transmission box. One side of one end of the motor housing has an installation notch with a longitudinal mounting surface and a transverse mounting surface. One end of the transmission box is positioned within the installation notch by a vertical insertion structure. A snap-fit ​​groove group is provided on the side of the transmission box corresponding to the transverse mounting surface or on the transverse mounting surface. A hook assembly is movably provided within the motor housing or transmission box, protruding from the transverse mounting surface or the side of the transmission box, and which can move towards or away from the longitudinal mounting surface when subjected to external force, thereby snapping or separating from the snap-fit ​​groove group.

[0004] The above solution has solved the problem of low loading and unloading efficiency of existing motors and transmission boxes to a certain extent. However, the solution still has many shortcomings. For example, the vibration generated by the motor during long-term operation can still cause loosening between the motor and the transmission box, affecting the connection stability between the motor and the transmission box. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a locking structure for the motor and transmission box.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A locking structure for a motor and a transmission box includes a motor body and a transmission box body disposed at one end of the motor body. The transmission box body has an open end facing the motor body with a transmission box cover plate. The transmission box cover plate has several strip-shaped snap-fit ​​holes. At one end of the motor body, several snap-fit ​​members are movably disposed, each corresponding to one of the snap-fit ​​holes and snapping into the transmission box cover plate. Each snap-fit ​​member is connected to a device disposed inside the motor body, which, under external force, can drive the snap-fit ​​member to move axially along the snap-fit ​​hole, thereby disengaging the snap-fit ​​member from the transmission box cover. The radially elastic movable unlocking mechanism on the inner side of the plate has a locking rod rotatably mounted inside the transmission box. The locking rod is equipped with a locking component that can axially position the locking member in the locking hole when the locking rod rotates circumferentially. The opening can be closed by the transmission box cover plate. The radially elastic movable unlocking mechanism can facilitate the locking connection between the motor body and the transmission box through the locking hole and the locking member, improving the locking and disassembly efficiency. The locking component can easily lock the locking state of the transmission box and the motor body, ensuring the locking stability and effectively preventing the motor body from vibrating and falling off.

[0007] In the above-mentioned motor and transmission box locking structure, one end of the transmission box has an arc-shaped portion, and the width of the arc-shaped portion gradually increases from the other end. The opening of the transmission box and the transmission box cover plate are matched with the shape of the transmission box. The transmission box cover plate is set at the opening of the transmission box by several fixing bolts. The fixing bolts can ensure the connection stability between the transmission box cover plate and the transmission box, thereby ensuring the locking stability of the motor body on the transmission box through the transmission box cover plate.

[0008] In the above-mentioned locking structure for the motor and transmission box, there are four locking holes, two of which are located at the end of the transmission box cover plate near the arc-shaped part and the remaining two are located at the end of the transmission box cover plate away from the arc-shaped part. The locking holes are rectangular strips and extend axially along the length of the transmission box cover plate. The four locking holes can increase the locking range between the motor body and the transmission box cover plate and ensure locking stability.

[0009] In the above-mentioned locking structure for the motor and transmission box, the width of the snap-fit ​​component is less than the length of the snap-fit ​​hole, and one end of the snap-fit ​​component has a snap-fit ​​part that is bent away from the arc-shaped part and can snap onto the inside of the transmission box cover. The snap-fit ​​part enables the snap-fit ​​component and the transmission box cover to snap onto each other, which can ensure the snap-fit ​​stability between the motor body and the transmission box cover.

[0010] In the aforementioned locking structure for a motor and transmission box, two rotating seats are provided on the inner side of the transmission box near the arc-shaped portion. The locking rod rotatably passes between the two rotating seats. One end of the locking rod extends out of the transmission box and is connected to a rotating handle. The rotating seats facilitate the installation and setting of the locking rod, allowing it to be stably rotated on the rotating seats. The rotating handle facilitates the control of the locking rod, enabling the user to control the locking state and improving the user experience.

[0011] In the above-mentioned locking structure for the motor and transmission box, the transmission box has corresponding mounting notches on both sides of the open end near the arc-shaped part. The rotating seat is set in the mounting notch and the outer side of the rotating seat is flush with the outer side of the transmission box. The mounting notch can easily prevent the rotating seat from moving and improve the overall aesthetics of the transmission box.

[0012] In the aforementioned locking structure for a motor and transmission box, the locking assembly includes two locking blocks disposed on the outer circumference of the locking rod and corresponding one-to-one with two snap-fit ​​holes at one end near the arc-shaped portion. When the locking rod rotates circumferentially, the locking blocks swing to one end of the snap-fit ​​hole and abut against one side of the snap-fit ​​portion. When the motor body and the transmission box are snapped together, rotating the locking rod can drive the locking blocks to rotate synchronously. When the locking rod rotates at a certain angle, the locking blocks abut against the snap-fit ​​portion at one end near the arc-shaped portion, which can restrict the snap-fit ​​component from sliding within the snap-fit ​​hole and ensure the snap-fit ​​effect between the motor body and the transmission box.

[0013] In the aforementioned motor and transmission box locking structure, the radial elastic unlocking mechanism includes a fixed seat fixedly disposed on the inner side of one end of the motor body. A movable seat that can slide along the axial direction of the fixed seat is movably disposed on the inner side of the fixed seat. The snap-fit ​​parts are respectively disposed on the movable seat, and one end of the movable seat has a pressing part that movably protrudes out of the outer side of the motor body. An elastic reset component is provided between the fixed seat and the movable seat. The pressing part can drive the movable seat to perform radial displacement on the fixed seat through the elastic reset component, and can also drive the snap-fit ​​parts to perform radial displacement within the snap-fit ​​hole to disengage from the snap-fit ​​state. The elastic reset component can drive the movable seat to automatically reset when the pressing part loses pressure.

[0014] In the above-mentioned locking structure for the motor and transmission box, the elastic reset component includes several reset springs. One end of the reset spring acts on the fixed seat and the other end acts on the movable seat. When the pressing part is subjected to pressure, the movable seat is radially displaced on the fixed seat, and the reset spring is compressed. When the pressing part loses pressure, the reset spring can drive the movable seat to reset.

[0015] In the above-mentioned locking structure for a motor and a transmission box, a pulley is rotatably mounted inside the transmission box. The output shaft inside the motor passes through a fixed seat, a movable seat, and a transmission box cover in sequence and is connected to the pulley. The fixed seat, the movable seat, and the transmission box cover all have transmission holes with a diameter larger than that of the output shaft, which prevents the movable seat and the transmission box cover from touching the output shaft when they are in the unlocked and locked state, thereby improving the service life of the output shaft.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. The locking assembly ensures the stability of the connection between the motor body and the transmission box, effectively preventing the motor body from vibrating and falling off.

[0018] 2. The interlocking of the snap-fit ​​parts with the transmission hole facilitates the connection between the motor body and the transmission box, improving the snap-fit ​​efficiency.

[0019] 3. The radial elastic unlocking mechanism facilitates the disassembly of the motor body, improving disassembly efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is an exploded view of the structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the locking rod in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the transmission box cover plate in this utility model.

[0024] Figure 5 This is an exploded view of the radially elastic movable unlocking mechanism in this utility model.

[0025] In the diagram: Motor body 1, latching part 11, latching part 111, output shaft 12, transmission housing 2, opening 21, transmission housing cover 22, latching hole 221, locking rod 23, rotating handle part 231, arc-shaped part 24, rotating seat 25, mounting notch 26, pulley body 27, radial elastic movable unlocking mechanism 3, fixed seat 31, movable seat 32, pressing part 33, locking assembly 4, locking block 41, elastic reset assembly 5, reset spring 51, transmission hole 6. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 , Figure 2, Figure 3 , Figure 4 As shown, this invention relates to a motor and transmission box locking structure, comprising a motor body 1 and a transmission box 2 disposed at one end of the motor body 1. The transmission box 2 has an opening 21 facing the motor body 1 with a transmission box cover 22. The transmission box cover 22 has several strip-shaped snap-fit ​​holes 221. A plurality of snap-fit ​​pieces 11 are movably disposed at one end of the motor body 1, each corresponding to one of the snap-fit ​​holes 221 and snapping into the transmission box cover 22. Each snap-fit ​​piece 11 is connected to a radially elastic movable device disposed inside the motor body 1, capable of axially moving along the snap-fit ​​holes 221 under external force, thereby disengaging the snap-fit ​​piece 11 from the inner side of the transmission box cover 22. The locking mechanism 3 has a locking rod 23 rotatably mounted inside the transmission housing 2. The locking rod 23 is equipped with a locking component 4 that can axially position the snap-fit ​​piece 11 in the snap-fit ​​hole 221 when the locking rod 23 rotates circumferentially. The opening 21 can be closed by the transmission housing cover plate 22. The radially elastic unlocking mechanism 3 can facilitate the snap-fit ​​connection between the motor body 1 and the transmission housing 2 through the snap-fit ​​hole 221 and the snap-fit ​​piece 11, thereby improving the snap-fit ​​efficiency and disassembly efficiency. The locking component 4 can easily lock the snap-fit ​​state of the transmission housing 2 and the motor body 1, ensuring the snap-fit ​​stability and effectively preventing the motor body 1 from vibrating and falling off.

[0028] Specifically, the transmission housing 2 has an arc-shaped portion 24 at one end, and the width of the arc-shaped portion 24 gradually increases from the other end. The opening 21 of the transmission housing 2 and the transmission housing cover 22 are both matched with the shape of the transmission housing 2. The transmission housing cover 22 is set at the opening 21 of the transmission housing 2 by several fixing bolts. The fixing bolts can ensure the connection stability between the transmission housing cover 22 and the transmission housing 2, thereby ensuring the connection stability of the motor body 1 to the transmission housing 2 through the transmission housing cover 22.

[0029] The number of snap-fit ​​holes 221 is four, with two of them correspondingly located at the end of the transmission box cover plate 22 near the arc-shaped part 24 and the remaining two correspondingly located at the end of the transmission box cover plate 22 away from the arc-shaped part 24. The snap-fit ​​holes 221 are rectangular strips and extend axially along the length direction of the transmission box cover plate 22. The four snap-fit ​​holes 22 can increase the snap-fit ​​range between the motor body 1 and the transmission box cover plate 22 and ensure the snap-fit ​​stability.

[0030] like Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the width of the snap-fit ​​part 11 is less than the length of the snap-fit ​​hole 221, and one end of the snap-fit ​​part 11 has a snap-fit ​​part 111 that is bent away from the arc-shaped part 24 and can be snapped into the inner side of the transmission box cover plate 22. The snap-fit ​​part 111 can make the snap-fit ​​part 11 and the transmission box cover plate 22 snap into each other, which can ensure the snap-fit ​​stability between the motor body 1 and the transmission box cover plate 22.

[0031] Furthermore, two rotating seats 25 are provided on the inner side of the end of the transmission housing 2 near the arc-shaped part 24. The locking rod 23 is rotatably inserted between the two rotating seats 25. One end of the locking rod 23 extends out of the outside of the transmission housing 2 and is connected to a rotating handle part 231. The rotating seats 25 facilitate the installation and setting of the locking rod 23, so that the locking rod 23 is stably rotated on the rotating seats 25. The rotating handle 231 facilitates the control of the locking rod 23, making it easier for the user to control the locking state and improving the user experience.

[0032] Among them, the open end 21 of the transmission housing 2 near the arc-shaped part 24 has correspondingly distributed mounting notches 26 on both sides. The rotating seat 25 is set in the mounting notch 26 and the outer side of the rotating seat 25 is flush with the outer side of the transmission housing 2. The mounting notch 26 can easily prevent the rotating seat 25 from being moved, which can improve the overall aesthetics of the transmission housing 2.

[0033] Combination Figure 2 , Figure 3 , Figure 5 As shown, the locking assembly 4 includes two locking blocks 41 disposed on the outer side of the locking rod 23 and corresponding one-to-one with two locking holes 221 near the end of the arc-shaped portion 24. When the locking rod 23 rotates circumferentially, the locking blocks 41 swing to one end of the locking hole 221 and abut against one side of the locking part 111. When the motor body 1 and the transmission box 2 are locked together, rotating the locking rod 23 can drive the locking blocks 41 to rotate synchronously. When the locking rod 23 rotates at a certain angle, the locking blocks 41 abut against the locking part 11 near the end of the arc-shaped portion 24, which can restrict the locking part 11 from sliding in the locking hole 221 and ensure the locking effect between the motor body 1 and the transmission box 2.

[0034] The radial elastic movable unlocking mechanism 3 includes a fixed seat 31 fixedly installed on the inner side of one end of the motor body 1. A movable seat 32 that can slide along the axial direction of the fixed seat 31 is movably installed on the inner side of the fixed seat 31. The snap-fit ​​parts 11 are respectively installed on the movable seat 32, and one end of the movable seat 32 has a pressing part 33 that movably protrudes out of the outer side of the motor body 1. An elastic reset component 5 is provided between the fixed seat 31 and the movable seat 32. The pressing part 33 can drive the movable seat 32 to perform radial displacement on the fixed seat 31 through the elastic reset component 5, and can drive the snap-fit ​​parts 11 to perform radial displacement in the snap-fit ​​hole 221 to disengage from the snap-fit ​​state. When the pressing part 33 loses pressure, the elastic reset component 5 can drive the movable seat 32 to automatically reset.

[0035] Specifically, the elastic reset assembly 5 includes several reset springs 51. One end of the reset spring 51 acts on the fixed seat 31 and the other end acts on the movable seat 32. When the pressing part 33 is subjected to pressure, the movable seat 32 is radially displaced on the fixed seat 31, and the reset spring 51 is compressed. When the pressing part 33 loses pressure, the reset spring 51 can drive the movable seat 32 to reset.

[0036] Combination Figure 2 , Figure 5 As shown, a pulley body 27 is rotatably installed inside the transmission housing 2. The output shaft 12 inside the motor housing 1 passes through the fixed seat 31, the movable seat 32 and the transmission housing cover plate 22 in sequence and is connected to the pulley body 27. The fixed seat 31, the movable seat 32 and the transmission housing cover plate 22 all have transmission holes 6 with a diameter larger than that of the output shaft 12, which can prevent the movable seat 32 and the transmission housing cover plate 22 from touching the output shaft 12 when they are in the unlocked and locked state, thereby improving the service life of the output shaft 12.

[0037] The principle of this embodiment is as follows: When the motor body 1 and the transmission housing 2 are installed, the snap-fit ​​member 11 is disposed in the snap-fit ​​hole 221 and is snap-fitted to the transmission housing 2 through the snap-fit ​​part 111, so that the motor body 1 and the transmission housing 2 are snap-fitted together. The rotating handle part 231 causes the locking block 41 to abut against the snap-fit ​​member 11, which can improve the snap-fit ​​stability between the motor body 1 and the transmission housing 2. When it is necessary to disassemble the motor body 1, the locking block 41 can be moved away from the snap-fit ​​member 11 by rotating the rotating handle part 231, and the pressing part 33 drives the movable seat 32 to move radially within the fixed seat 31. The snap-fit ​​member 11 on the movable seat 32 moves radially within the snap-fit ​​hole 221, causing the snap-fit ​​part 111 to disengage from the snap-fit ​​state, thus completing the disassembly of the motor body 1.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0039] Although this document frequently uses terms such as motor body 1, snap-fit ​​part 11, snap-fit ​​portion 111, output shaft 12, transmission housing 2, opening 21, transmission housing cover 22, snap-fit ​​hole 221, locking rod 23, rotating handle portion 231, arc-shaped portion 24, rotating seat 25, mounting notch 26, pulley body 27, radial elastic movable unlocking mechanism 3, fixed seat 31, movable seat 32, pressing portion 33, locking assembly 4, locking block 41, elastic reset assembly 5, reset spring 51, and transmission hole 6, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A locking structure for a motor and a transmission housing, comprising a motor body (1) and a transmission housing (2) disposed at one end of the motor body (1), wherein the transmission housing (2) has a transmission housing cover (22) at an opening (21) facing the motor body (1), characterized in that, The transmission box cover (22) is provided with a plurality of strip-shaped snap-fit ​​holes (221). The motor body (1) is provided with a plurality of snap-fit ​​pieces (11) that pass through the snap-fit ​​holes (221) and snap-fit ​​with the transmission box cover (22) respectively. The snap-fit ​​pieces (11) are connected to a radial elastic unlocking mechanism (3) that is provided inside the motor body (1) and can drive the snap-fit ​​pieces (11) to move axially along the snap-fit ​​holes (221) under the action of external force, thereby causing the snap-fit ​​pieces (11) to disengage from the inside of the transmission box cover (22). The transmission box (2) is provided with a locking rod (23) that rotates inside. The locking rod (23) is provided with a locking component (4) that can axially position the snap-fit ​​pieces (11) in the snap-fit ​​holes (221) when the locking rod (23) rotates circumferentially.

2. The locking structure for the motor and transmission box according to claim 1, characterized in that, The transmission housing (2) has an arc-shaped part (24) at one end, and the width of the arc-shaped part (24) gradually increases from the other end. The opening (21) and the transmission housing cover (22) of the transmission housing (2) are matched with the shape of the transmission housing (2), and the transmission housing cover (22) is set at the opening (21) of the transmission housing (2) by a number of fixing bolts.

3. The locking structure for the motor and transmission box according to claim 2, characterized in that, The number of the snap-fit ​​holes (221) is four, two of which are respectively set at one end of the transmission box cover plate (22) near the arc-shaped part (24) and the remaining two are respectively set at one end of the transmission box cover plate (22) away from the arc-shaped part (24). The snap-fit ​​holes (221) are rectangular strips and extend axially along the length direction of the transmission box cover plate (22).

4. A locking structure for the motor and transmission box according to claim 2 or 3, characterized in that, The width of the snap-fit ​​member (11) is less than the length of the snap-fit ​​hole (221), and one end of the snap-fit ​​member (11) has a snap-fit ​​part (111) that is bent away from the arc-shaped part (24) and can be snapped into the inside of the transmission box cover plate (22).

5. The locking structure for the motor and transmission box according to claim 4, characterized in that, The transmission housing (2) has two rotating seats (25) on the inner side of one end near the arc-shaped part (24). The locking rod (23) is rotatably inserted between the two rotating seats (25). One end of the locking rod (23) extends out of the outside of the transmission housing (2) and is connected to a rotating handle part (231).

6. The locking structure for the motor and transmission box according to claim 5, characterized in that, The transmission housing (2) has corresponding mounting notches (26) on both sides of the opening (21) near the arc-shaped part (24). The rotating seat (25) is set in the mounting notch (26) and the outer side of the rotating seat (25) is flush with the outer side of the transmission housing (2).

7. The locking structure for the motor and transmission box according to claim 4, characterized in that, The locking assembly (4) includes two locking blocks (41) disposed on the outer side of the locking rod (23) and corresponding one-to-one with two snap holes (221) near the end of the arc-shaped part (24). When the locking rod (23) rotates circumferentially, the locking blocks (41) swing to one end of the snap hole (221) and abut against one side of the snap part (111).

8. The locking structure for the motor and transmission box according to claim 1, characterized in that, The radial elastic movable unlocking mechanism (3) includes a fixed seat (31) fixedly disposed on the inner side of one end of the motor body (1), a movable seat (32) movably disposed on the inner side of the fixed seat (31) and slidable along the axial direction of the fixed seat (31), the snap-fit ​​members (11) are respectively disposed on the movable seat (32), and one end of the movable seat (32) has a pressing part (33) that movably protrudes out of the outer side of the motor body (1), and an elastic reset component (5) is provided between the fixed seat (31) and the movable seat (32).

9. The locking structure for the motor and transmission box according to claim 8, characterized in that, The elastic reset assembly (5) includes several reset springs (51), one end of which acts on the fixed seat (31) and the other end acts on the movable seat (32).

10. The locking structure for the motor and transmission box according to claim 1, characterized in that, The transmission housing (2) is equipped with a pulley body (27) that rotates inside. The output shaft (12) inside the motor body (1) passes through the fixed seat (31), the movable seat (32) and the transmission housing cover plate (22) in sequence and is connected to the pulley body (27). The fixed seat (31), the movable seat (32) and the transmission housing cover plate (22) all have transmission holes (6) with a diameter larger than that of the output shaft (12).

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