Enclosed driver

Abstract

The utility model belongs to the technical field of drivers, and discloses a closed driver which comprises a shell, a motor, a guide rail, a sliding piece and a baffle, a lead screw is arranged in the shell, the motor is arranged on the shell, the guide rail is arranged on the shell and covers the lead screw, the guide rail is provided with a sliding gap, and the sliding piece is arranged in the shell. The sliding gap is used for sliding fit between the sliding part and the guide rail, the sliding part is arranged on the guide rail in a sleeving mode and is in transmission connection with the lead screw so that the sliding part can be in sliding fit relative to the guide rail, and the baffle is located in the sliding gap, plays a shielding role and is arranged on the sliding part in a penetrating mode and installed on the shell. The baffle can shield the opening of the sliding gap of the guide rail while the sliding piece slides smoothly on the guide rail and the baffle in a reciprocating mode, foreign matter is prevented from being clamped in the sliding gap or falling into the guide rail, the protection effect is achieved, and attractiveness is good.

Description

Technical Field

[0001] This utility model relates to the field of driver technology, and more particularly to enclosed drivers. Background Technology

[0002] Actuators typically consist of guide rails, sliders, and lead screws. Currently, most actuators on the market have gaps between the slider and guide rail, and lack protective structures. When these actuators are used in devices that interact with people, such as those in homes and healthcare settings, foreign objects can easily fall into these gaps, and children's fingers can easily get stuck. When the lead screw rotates, it can cause injury to the fingers and damage the actuator itself.

[0003] Therefore, a closed-loop actuator is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a closed-type driver that can block the sliding gap opening of the guide rail, prevent foreign objects from getting stuck in the sliding gap or falling into the guide rail, thus providing protection and also being aesthetically pleasing.

[0005] To address the aforementioned problems in the existing technology, this utility model adopts the following technical solution:

[0006] Enclosed drives, including:

[0007] A housing, wherein a lead screw is disposed within the housing;

[0008] An electric motor is mounted on the housing and is used to drive the lead screw to rotate.

[0009] A guide rail is disposed on the housing and covers the lead screw, and the guide rail has a sliding clearance;

[0010] A sliding member is sleeved on the guide rail and is connected to the lead screw drive so that the sliding member can slide relative to the guide rail;

[0011] A baffle is located in the sliding gap, the baffle passes through the sliding member and is installed in the housing.

[0012] Preferably, the enclosed actuator further includes a fixing member disposed within the housing, and the fixing member is connected to the baffle.

[0013] Preferably, the fixing member includes a fixing part, a connecting part, and a blocking part. The fixing part is disposed on the inner sidewall of the housing. Along the outer peripheral direction of the fixing part, the blocking part is disposed on the edge of the fixing part. The inner peripheral wall of the blocking part abuts against the outer peripheral of the guide rail. The connecting part is configured to allow the lead screw to rotate through it.

[0014] Preferably, the fixing member further includes two support parts, which are spaced apart on the inner peripheral wall of the enclosure part. The support parts and the connecting part are provided with slots spaced apart, and the baffle is inserted between the slots and the two support parts.

[0015] Preferably, the fastener further includes a first abutting part and a second abutting part, the first abutting part being connected to the enclosure part and the second abutting part being connected to the fastening part, and the inner sidewall of the housing having a first reinforcing part and a second reinforcing part protruding therefrom, the first abutting part abutting against the first reinforcing part and the second abutting part abutting against the second reinforcing part.

[0016] Preferably, the sliding member has a through hole, and the baffle passes through the through hole.

[0017] Preferably, the sliding member includes a first sliding part and a second sliding part. The first sliding part has a sliding channel, and the inner peripheral wall of the sliding channel slides in cooperation with the outer peripheral wall of the guide rail. The second sliding part is disposed in the sliding channel and located in the guide rail. The second sliding part has a threaded hole, and the threaded hole is configured to be threadedly connected to the lead screw.

[0018] Preferably, the sliding member further includes a snap-fit ​​portion, which is disposed on the outer periphery of the second sliding member. There are multiple snap-fit ​​portions, which are spaced apart along the circumferential direction of the second sliding member. The inner peripheral wall of the guide rail is provided with multiple support members, which are inserted into the multiple snap-fit ​​portions in a one-to-one correspondence.

[0019] Preferably, the enclosed actuator further includes an end cap, which is disposed at the end of the guide rail and is connected to the guide rail and the baffle.

[0020] Preferably, the enclosed actuator further includes a micro switch located within the guide rail, and the inner peripheral wall of the guide rail is provided with a groove, in which the micro switch is disposed.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model provides a closed-type actuator with a lead screw installed inside the housing. A motor is mounted on the housing and drives the lead screw to rotate. A guide rail is installed in the housing and covers the lead screw. The guide rail has a sliding gap. A sliding member is sleeved on the guide rail and is connected to the lead screw to allow the sliding member to slide relative to the guide rail. A baffle is located in the sliding gap, passes through the sliding member, and is installed in the housing. The sliding gap is used for the sliding engagement between the sliding member and the guide rail. The baffle is located at the opening of the sliding gap and serves as a shield. The sliding connection between the sliding member and the baffle ensures smooth reciprocating sliding of the sliding member on the guide rail and the baffle. At the same time, the baffle can block the opening of the sliding gap of the guide rail, preventing foreign objects from getting stuck in the sliding gap or falling into the guide rail, thus providing protection and improving aesthetics. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of the enclosed driver provided in an embodiment of this utility model;

[0024] Figure 2 A partial cross-sectional view of a closed-type driver provided in an embodiment of this utility model;

[0025] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 An exploded view of the enclosed actuator provided in an embodiment of this utility model;

[0027] Figure 5 A schematic diagram of the end cap structure provided in an embodiment of this utility model;

[0028] Figure 6 A schematic diagram of the structure of the fastener provided in the embodiment of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the sliding member provided in an embodiment of the present utility model;

[0030] Figure 8 A schematic diagram of the guide rail provided in an embodiment of this utility model;

[0031] Figure 9 A schematic diagram of the structure of the baffle provided in an embodiment of this utility model;

[0032] Figure 10 A first structural schematic diagram of the housing, fixing member, and baffle provided for an embodiment of this utility model;

[0033] Figure 11 This is a second structural schematic diagram of the housing, fixing member, and baffle provided in an embodiment of the present utility model.

[0034] Figure label:

[0035] 10. Lead screw; 20. Motor;

[0036] 1. Shell; 11. First reinforcing part; 12. Second reinforcing part;

[0037] 2. Fastener; 21. Fixing groove; 22. Fixing part; 23. Connecting part; 24. Enclosing part; 25. Supporting part; 26. Slot; 27. First abutting part; 28. Second abutting part; 29. ​​Mounting hole;

[0038] 3. Guide rail; 31. Sliding clearance; 32. Support component; 33. Connecting hole; 34. Slide groove;

[0039] 4. Sliding component; 41. Through hole; 42. First sliding part; 421. Sliding channel; 43. Second sliding part; 431. Threaded hole; 44. Snap-fit ​​part;

[0040] 5. Baffle;

[0041] 6. Connectors;

[0042] 7. End cap; 71. Mounting groove; 72. Connecting groove;

[0043] 8. Micro switch. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] like Figures 1-11 As shown, in this embodiment, the enclosed actuator includes a housing 1, a motor 20, a guide rail 3, a sliding member 4, and a baffle 5. A lead screw 10 is disposed inside the housing 1. The motor 20 is mounted on the housing 1 and drives the lead screw 10 to rotate. The guide rail 3 is disposed on the housing 1 and covers the lead screw 10, having a sliding gap 31. The sliding member 4 is sleeved on the guide rail 3 and is connected to the lead screw 10, allowing the sliding member 4 to slide relative to the guide rail 3. The baffle 5 is located in the sliding gap 31, passing through the sliding member 4 and mounted on the housing 1.

[0049] Specifically, the motor 20 is mounted on one side of the housing 1. A transmission assembly consisting of multiple gears is installed inside the housing 1. The output shaft of the motor 20 is connected to the transmission assembly. The lead screw 10 is connected to the end gear of the transmission assembly. Under the driving action of the motor 20, power is transmitted to the lead screw 10 through the multiple gears, causing the lead screw 10 to rotate. The guide rail 3 has only one sliding clearance 31. It can be configured as either an integral structure guide rail 3 as shown in the figure, or a spliced ​​structure guide rail 3. The end of the guide rail 3 is mounted on the housing 1 and covers a portion of the lead screw 10. The slider 4 is configured as a slider, which is sleeved on the outer periphery of the guide rail 3 and can slide back and forth along the length direction of the guide rail 3. The sliding gap 31 is used for the sliding engagement between the slider 4 and the guide rail 3. The baffle 5 is located at the opening of the sliding gap 31 and plays a blocking role. The length direction of the baffle 5 is parallel to the extension direction of the sliding gap 31. The slider 4 and the baffle 5 are slidably connected, ensuring that the slider 4 slides smoothly back and forth on the guide rail 3 and the baffle 5. At the same time, the baffle 5 can block the opening of the sliding gap 31 of the guide rail 3, preventing foreign objects from getting stuck in the sliding gap 31 or falling into the guide rail 3, thus playing a protective role and having a good aesthetic appearance.

[0050] Furthermore, continue to refer to Figures 1-11 The enclosed actuator also includes a fixing member 2, which is disposed within the housing 1 and is connected to the baffle 5. Specifically, the fixing member 2 is configured as a support plate, sleeved on the lead screw 10 and installed on the inner side wall of the housing 1. The fixing member 2 is used to fix the guide rail 3 and the baffle 5. The fixing member 2 has a fixing groove 21, and the end of the baffle 5 passes through the sliding member 4 and can be inserted into the fixing groove 21 to achieve the connection between the baffle and the fixing member 2. Optionally, the fixing member is provided with a first mating member, and the baffle 5 is provided with a second mating member at a corresponding position. The first mating member and the second mating member cooperate with each other, such as a snap-fit ​​structure or a riveting structure, to achieve the connection between the fixing member 2 and the baffle 5. Optionally, the fixing member 2 is provided with a locking block, and the baffle 5 is provided with a locking groove at a corresponding position. The locking block and the locking groove are locked together to achieve the connection between the fixing member 2 and the baffle 5.

[0051] Furthermore, referring to Figure 6 and Figure 11The fixing member 2 includes a fixing part 22, a connecting part 23, and a blocking part 24. The fixing part 22 is disposed on the inner side wall of the housing 1. Along the outer periphery of the fixing part 22, the blocking part 24 is provided with the edge of the fixing part 22. The inner peripheral wall of the blocking part 24 abuts against the outer periphery of the guide rail 3. The connecting part 23 is configured to allow the lead screw 10 to rotate through it. Specifically, the fixing part 22 is installed on the guide rail 3 by bolts or other connecting parts. At the same time, the fixing part 22 is fixedly installed on the inner side wall of the housing 1 by plug-in or bolt connecting parts. The blocking part 24 is fixedly connected to the outer peripheral edge of the fixing part 22. The width of the blocking part 24 is greater than the thickness of the fixing part 22, that is, the blocking part 24 protrudes from the end face of the fixing part 22. Along the circumferential direction of the lead screw 10, the outer periphery of the end of the guide rail 3 abuts against the inner circumferential wall of the enclosure 24. The guide rail 3 is fixed in the housing 1 by the fastener 2, which is firmly connected and easy to disassemble and assemble. The connecting part 23 has a round hole, through which the lead screw 10 passes and can rotate relative to the connecting part 23.

[0052] Furthermore, continue to refer to Figure 6 and Figure 11 The fastener 2 also includes two support portions 25, which are spaced apart on the inner peripheral wall of the enclosure portion 24. The two support portions 25 are arranged to form a fixing groove 21. The support portions 25 and the connecting portion 23 are spaced apart by slots 26. The baffle 5 is inserted between the slots 26 and the two support portions 25. Specifically, the baffle 5 has a T-shaped structure, high structural strength, and long service life. Both support portions 25 protrude from the inner peripheral wall of the enclosure portion 24. The slots 26 formed between the two support portions 25 and the connecting portion 23, and the fixing grooves 21 between the two support portions 25, allow the T-shaped baffle 5 to be inserted and fixed, ensuring a firm connection and preventing loosening.

[0053] Furthermore, referring to Figures 10-11 The fastener 2 also includes a first abutting part 27 and a second abutting part 28. The first abutting part 27 is connected to the enclosure part 24, and the second abutting part 28 is connected to the fixing part 22. The inner sidewall of the housing 1 is provided with a first reinforcing part 11 and a second reinforcing part 12. The first abutting part 27 abuts against the first reinforcing part 11, and the second abutting part 28 abuts against the second reinforcing part 12. Specifically, a plurality of bolt holes are provided on the inner sidewall of the housing 1 for assembling the housing 1. The first reinforcing part 11 and the second reinforcing part 12 are provided around the bolt holes to enhance the structural strength of the bolt holes. The first reinforcing part 11 and the second reinforcing part 12 can accommodate the fixing part 2. The enclosure part 24 is provided with a first abutting part 27, and the end face of the fixing part 22 is provided with a second abutting part 28. The first abutting part 27 and the second abutting part 28 abut against the first reinforcing part 11 and the second reinforcing part 12 respectively, thereby realizing the connection between the fixing part 2 and the shell 1. No bolts or other connecting parts are needed for connection and fixation, which is convenient for disassembly and assembly and has low cost.

[0054] Furthermore, continue to refer to Figure 3 The sliding member 4 has a through hole 41, and the baffle 5 passes through the through hole 41. Specifically, the baffle 5 has a T-shaped structure to enhance the structural strength of the baffle 5. The through hole 41 on the sliding member 4 has a T-shaped structure to meet the shape requirements of the sliding gap 31, making the sliding gap 31 more compact. In addition, the T-shaped structure makes the baffle 5 more supportive and resistant to bending. The baffle 5 and the through hole 41 are slidably inserted to ensure that the sliding member 4 can slide smoothly on the baffle 5 along the length direction of the baffle 5.

[0055] Furthermore, referring to Figures 1-3 The sliding member 4 includes a first sliding part 42 and a second sliding part 43. The first sliding part 42 has a sliding channel 421, and the inner peripheral wall of the sliding channel 421 slides in cooperation with the outer peripheral wall of the guide rail 3. The second sliding part 43 is disposed within the sliding channel 421 and is located within the guide rail 3. The second sliding part 43 has a threaded hole 431, which is configured to be threadedly connected to the lead screw 10. Specifically, the sliding member 4 includes an integrally formed first sliding part 42 and a second sliding part 43. The second sliding part 43 extends into the interior of the guide rail 3, and the first sliding part 42 is completely enclosed in the exterior of the guide rail 3, allowing for smooth sliding and preventing loosening. The lead screw 10 is threadedly connected to the second sliding part 43 through the threaded hole 431. The sliding member 4 also includes a snap-fit ​​part 44, which is disposed on the outer periphery of the second sliding part 43. There are multiple snap-fit ​​parts 44, which are spaced apart along the circumferential direction of the second sliding part 43. The inner peripheral wall of the guide rail 3 is provided with multiple support members 32, which are inserted into the multiple snap-fit ​​parts 44 in a one-to-one correspondence. The snap-fit ​​part 44 can cooperate with and slide to connect with the support members 32 on the inner wall of the guide rail 3.

[0056] Furthermore, continue to refer to Figures 1-8 The enclosed actuator also includes an end cover 7, which is located at the end of the guide rail 3 and is connected to the guide rail 3 and the baffle 5. Specifically, the end cover 7 has a mounting groove 71 and a connecting groove 72. The connecting groove 72 has a T-shaped structure. The two ends of the guide rail 3 are respectively provided with the end cover 7 and the fixing member 2. The end of the guide rail 3 is engaged with the mounting groove 71 of the end cover 7, that is, the outer periphery of the guide rail 3 abuts against the inner side wall of the mounting groove 71. At the same time, the baffle 5 is inserted and fixed to the connecting groove 72 of the end cover 7, which is secure and easy to install and remove. Optionally, the end cover 7 is provided with a first mating member, and the guide rail 3 and the baffle 5 are provided with a second mating member at corresponding positions. The first mating member and the second mating member cooperate with each other, such as a snap-fit ​​structure or a riveting structure, to realize the mating connection between the end cover 7 and the guide rail 3 and the baffle 5. Optionally, the end cover 7 is provided with a locking block, and the guide rail 3 and the baffle 5 are provided with corresponding slots. The locking block and the slots are locked together to achieve the mating connection between the end cover 7 and the guide rail 3 and the baffle 5.

[0057] Furthermore, continue to refer to Figures 1-8 The enclosed actuator also includes a connector 6, and the fixing member 2 has a mounting hole 29. The guide rail 3 has a connection hole 33. The connector 6 passes through the mounting hole 29 and is connected to the connection hole 33. Specifically, the connector 6 is a bolt, and there are multiple connectors 6. The guide rail 3 is connected to the fixing member 2 through multiple connectors 6. Correspondingly, the end cover 7 is connected to the guide rail 3 through multiple connectors 6. The end cover 7 and the fixing member 2 share the same connection hole 33 of the guide rail 3 through the connectors 6, so there is no need to set different connection holes 33 on the guide rail 3 for installation.

[0058] Furthermore, continue to refer to Figures 1-8 The enclosed actuator also includes a micro switch 8, which is located inside the guide rail 3. The inner peripheral wall of the guide rail 3 is also provided with a groove 34, and the micro switch 8 is disposed in the groove 34. Specifically, the micro switch 8 is usually set at the start and end positions to control the stroke of the slider 4. The two opposite inner side walls of the groove 34 are provided with grooves, and the two sides of the base of the micro switch 8 are respectively engaged in the corresponding grooves, and the micro switch 8 and the groove 34 have a good engaging fit.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A closed-loop actuator, characterized in that, include: A housing (1), wherein a lead screw (10) is provided inside the housing (1); A motor (20) is mounted on the housing (1) and is used to drive the lead screw (10) to rotate. A guide rail (3) is disposed on the housing (1) and covers the lead screw (10). The guide rail (3) has a sliding clearance (31). A sliding member (4) is sleeved on the guide rail (3) and is connected to the lead screw (10) so that the sliding member (4) can slide relative to the guide rail (3); A baffle (5) is located in the sliding gap (31), and the baffle (5) passes through the sliding member (4) and is installed in the housing (1).

2. The enclosed actuator according to claim 1, characterized in that, The enclosed driver also includes a fixing member (2), which is disposed inside the housing (1) and is connected to the baffle (5).

3. The enclosed actuator according to claim 2, characterized in that, The fastener (2) includes a fixing part (22), a connecting part (23) and a blocking part (24). The fixing part (22) is disposed on the inner side wall of the housing (1) along the outer periphery of the fixing part (22). The blocking part (24) is disposed on the edge of the fixing part (22). The inner periphery of the blocking part (24) abuts against the outer periphery of the guide rail (3). The connecting part (23) is configured to allow the lead screw (10) to rotate through it.

4. The enclosed actuator according to claim 3, characterized in that, The fastener (2) also includes two support parts (25), which are spaced apart on the inner peripheral wall of the enclosure part (24). The support parts (25) and the connecting part (23) are spaced apart by a slot (26), and the baffle (5) is inserted between the slot (26) and the two support parts (25).

5. The enclosed actuator according to claim 3, characterized in that, The fastener (2) further includes a first abutting part (27) and a second abutting part (28). The first abutting part (27) is connected to the enclosure part (24), and the second abutting part (28) is connected to the fixing part (22). The inner sidewall of the housing (1) is provided with a first reinforcing part (11) and a second reinforcing part (12). The first abutting part (27) abuts against the first reinforcing part (11), and the second abutting part (28) abuts against the second reinforcing part (12).

6. The enclosed actuator according to claim 1, characterized in that, The sliding member (4) has a through hole (41), and the baffle (5) passes through the through hole (41).

7. The enclosed actuator according to claim 1, characterized in that, The sliding member (4) includes a first sliding part (42) and a second sliding part (43). The first sliding part (42) has a sliding channel (421). The inner peripheral wall of the sliding channel (421) slides in cooperation with the outer peripheral wall of the guide rail (3). The second sliding part (43) is disposed in the sliding channel (421) and is located in the guide rail (3). The second sliding part (43) has a threaded hole (431). The threaded hole (431) is configured to be threadedly connected to the lead screw (10).

8. The enclosed actuator according to claim 7, characterized in that, The sliding member (4) further includes a snap-fit ​​part (44), which is disposed on the outer periphery of the second sliding part (43). There are multiple snap-fit ​​parts (44), which are spaced apart along the circumferential direction of the second sliding part (43). The inner peripheral wall of the guide rail (3) is provided with multiple support members (32), which are inserted into the multiple snap-fit ​​parts (44) in a one-to-one correspondence.

9. The enclosed actuator according to claim 1, characterized in that, The enclosed driver also includes an end cap (7), which is disposed at the end of the guide rail (3) and is connected to the guide rail (3) and the baffle (5).

10. The enclosed actuator according to claim 1, characterized in that, The enclosed driver also includes a micro switch (8), which is located inside the guide rail (3). The inner peripheral wall of the guide rail (3) is also provided with a groove (34), and the micro switch (8) is disposed in the groove (34).

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