Dustproof cover structure

Abstract

The utility model discloses a dustproof cover structure which comprises a dustproof cover body and a pull rope, one end of the pull rope is fixedly connected with the dustproof cover body, the other end of the pull rope is provided with a locking part, a shell of a charging gun or a charging seat is provided with an insertion cavity used for being connected with the locking part in an inserted mode, and the inner wall of the insertion cavity is provided with a clamping groove matched with the locking part in a clamped mode. A telescopic assembly is slidably arranged in a cavity in the locking part in the direction perpendicular to the direction in which the locking part is installed in the inserting cavity, a hanging tongue is arranged at the end, facing the clamping groove, of the telescopic assembly in a protruding mode, at least part of the hanging tongue extends out of the locking part in a suspended mode and is matched with the clamping groove in a clamped mode, and a driving piece used for controlling the telescopic state of the telescopic assembly is further arranged in the cavity. According to the dustproof cover disclosed by the utility model, the locking part connected with the pull rope can be quickly detached from the insertion cavity of the shell by driving the telescopic state of the telescopic assembly through the driving piece, so that the dustproof cover can be detached from the charging gun or the charging seat for replacement.

Description

Technical Field

[0001] This utility model relates to the field of charging device technology, and more specifically, to a dust cover structure. Background Technology

[0002] In the field of new energy vehicles, the connection ports of charging guns and charging sockets typically require dust protection, meaning they need to be equipped with openable and closable dust covers. Currently used dust covers, after factory assembly, are susceptible to damage from external conditions at the end-user's location. Because the dust covers are made of soft rubber, especially the pull cord connection area, damage from cuts can easily lead to damage and impaired functionality. Traditionally, the locking part of one end of the pull cord on the dust cover is usually attached to the charging gun or charging socket housing via a plug-and-play method. To ensure that the two are not easily separated after installation, the pre-tightening force after installation of the locking part and the insertion cavity on the housing needs to be set relatively high. This makes both removing the locking part from the housing and installing it into the insertion cavity very difficult, resulting in inconvenience in assembling and disassembling the locking part and the insertion cavity. Utility Model Content

[0003] One objective of this invention is to provide a new technical solution for the dust cover structure to solve the problem that it is very difficult to remove the locking part on the pull rope of the dust cover from the housing or to install the locking part into the insertion cavity of the housing, resulting in inconvenience in assembling and disassembling the locking part from the insertion cavity of the housing.

[0004] According to a first aspect of this utility model, a dust cover structure is provided, including a dust cover body and a pull rope fixedly connected to one end of the dust cover body. The other end of the pull rope is provided with a locking part that is detachably connected to a charging gun or charging base. The housing of the charging gun or charging base has an insertion cavity for inserting the locking part, and the inner wall of the insertion cavity is provided with a snap-fit ​​groove that engages with the locking part. A cavity is provided inside the locking part, and a telescopic component is slidably provided inside the cavity in a direction perpendicular to the direction in which the locking part is inserted into the insertion cavity. A cantilever is provided at one end of the telescopic component facing the snap-fit ​​groove. The cantilever is at least partially suspended outside the locking part and engages with the snap-fit ​​groove. A drive member is also provided inside the cavity for controlling the telescopic state of the telescopic component, so as to control the cantilever to exit from the snap-fit ​​groove when the locking part is removed from the insertion cavity.

[0005] Optionally, the telescopic assembly includes an elastic element and a telescopic body slidably disposed within the cavity, the tongue being disposed at one end of the telescopic body facing the snap-fit ​​groove, and the elastic element being pressed between the other end of the telescopic body and the inner wall of the cavity.

[0006] Optionally, at least one of the telescopic body and the cavity is provided with a receiving groove for accommodating the elastic element.

[0007] Optionally, the elastic element is a compression spring.

[0008] Optionally, the telescopic body has a drive hole extending through it along the direction in which the locking part is inserted into the insertion cavity. The drive member is slidably disposed in the cavity along the direction in which the locking part is inserted into the insertion cavity. The end face of the drive member facing the telescopic body has a drive block protruding and suspended in the drive hole. The end of the drive block away from the tongue has a drive slope that abuts against the inner wall of the drive hole. Pressing the drive member can cause the drive slope of the drive block to drive the telescopic body to move inward, thereby causing the tongue to retract from the locking groove.

[0009] Optionally, a first slide rail is provided in the cavity along the direction perpendicular to the insertion cavity of the locking part, and a first slider is correspondingly provided on the side wall of the telescopic body;

[0010] A second slide is provided inside the cavity along the direction in which the locking part is inserted into the insertion cavity, and a second slider is correspondingly provided on the side wall of the driving member.

[0011] Optionally, the inner side of the second slider is formed with a hook, and the side wall of the telescopic body is provided with a limiting part for limiting the initial position of the driving member. When the driving member is in the initial position, the hook and the limiting part are engaged to stop it.

[0012] Optionally, the inner wall of the cavity is provided with a third slide rail along the sliding direction of the telescopic body, and the outer wall of the telescopic body is provided with a third slider that slides in cooperation with the third slide rail.

[0013] Optionally, the maximum compression stroke of the compression spring is not less than the maximum locking length between the cantilever and the locking groove.

[0014] Optionally, when the driving member is in the initial position, the outer surface of the driving member is flush with or lower than the outer surface of the locking part.

[0015] Optionally, a base is provided between the locking part and the pull rope, the base having a support surface that matches the housing shape of the charging gun or charging base.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention features a snap-fit ​​groove on the inner wall of the insertion cavity on the housing of a charging gun or charging base. A locking part is provided on one end of the pull cord connected to the dust cover body. A telescopic component is installed inside the locking part. The telescopic component has a cantilever that at least partially extends outside the telescopic component and engages with the snap-fit ​​groove, as well as a drive component for controlling the telescopic component's extension and retraction. When the locking part needs to be removed from the housing, the drive component controls the extension and retraction of the telescopic component, thereby controlling the cantilever to exit from the snap-fit ​​groove, unlocking the locking part from the insertion cavity on the housing. This ensures that after the dust cover is damaged, a new dust cover can be easily installed on the housing of the charging gun or charging base, enabling independent secondary replacement at the end customer without after-sales service. Furthermore, this dust cover structure provides excellent protection for the charging head of the charging gun or the charging interface of the charging base.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of a dust cover according to the present invention, showing the locking part being removed from the insertion cavity;

[0021] Figure 2 This is a schematic diagram of a dust cover structure according to the present invention;

[0022] Figure 3 This is a schematic diagram of the assembly of the driving component and the telescopic component of this utility model;

[0023] Figure 4 This is a structural schematic diagram of the assembly of the driving component and the telescopic component of this utility model from another angle;

[0024] Figure 5 This is a schematic diagram of the insertion cavity opened on the housing of the charging gun or charging base of this utility model.

[0025] Figure 6 This is a partial cross-sectional view of the telescopic assembly's cantilever and locking groove engaging when the drive component of this utility model is in its initial position.

[0026] Figure 7 This is a partial cross-sectional view of the telescopic assembly's cantilever tongue retracting from the locking groove when the driving component of this utility model is in the pressed state.

[0027] Figure 8 This is a schematic diagram of the structure of the telescopic component of this utility model;

[0028] Figure 9 This is an exploded structural diagram of the locking part, driving part, and telescopic assembly of this utility model;

[0029] Figure 10 This is a schematic diagram of the structure of the driving component of this utility model.

[0030] The diagram is marked as follows:

[0031] 10. Dust cover; 101. Dust cover body; 102. Pull rope; 103. Base; 1031. Support surface; 104. Locking part; 1041. Cavity; 1042. First slide rail; 1043. Second slide rail; 1044. Third slide rail; 20. Housing; 201. Insertion cavity; 2011. Snap-fit ​​groove; 30. Driving component; 301. Driving block; 3011. Driving inclined surface; 302. Second slider; 303. Hook; 40. Telescopic body; 401. Suspended tongue; 402. Driving hole; 403. First slider; 404. Third slider; 405. Limiting part; 50. Elastic component. Detailed Implementation

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0033] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0034] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0035] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0036] This utility model provides a dust cover structure, such as Figures 1-7As shown, the device includes a dust cover body 101 and a pull rope 102 fixedly connected to the dust cover body 101 at one end. The other end of the pull rope 102 is provided with a locking part 104 that can be detachably connected to a charging gun or charging base. The housing 20 of the charging gun or charging base has an insertion cavity 201 for inserting the locking part 104, and the inner wall of the insertion cavity 201 is provided with a snap-fit ​​groove 2011 that engages with the locking part 104. A cavity 1041 is provided inside the locking part 104, and the inner edge of the cavity 1041 is perpendicular to the ground. A telescopic assembly is slidably provided in the direction in which the locking part 104 is inserted into the insertion cavity 201. A cantilever tongue 401 is provided at one end of the telescopic assembly facing the snap-fit ​​groove 2011. The cantilever tongue 401 extends at least partially outside the locking part 104 and engages with the snap-fit ​​groove 2011. A drive member 30 is also provided in the cavity 1041 to control the telescopic state of the telescopic assembly, so as to control the cantilever tongue 401 to exit from the snap-fit ​​groove 2011 when the locking part 104 is removed from the insertion cavity 201.

[0037] In the field of new energy vehicles, the connection ports of charging guns and charging sockets usually require dust protection, that is, a dust cover 10 that can be opened and closed needs to be provided. The dust cover 10 currently used is susceptible to damage from external conditions at the end customer's site after factory assembly. Since the dust cover 10 is made of soft rubber, especially after the pull rope 102 is damaged by a cut, the dust cover 10 is easily damaged and its function is impaired. The locking part 104 at one end of the pull rope 102 on the traditional dust cover 10 is usually connected to the housing 20 of the charging gun or charging socket by plugging and unplugging. In order to ensure that the two are not easily separated after installation, the pre-tightening force after the locking part 104 and the insertion cavity 201 on the housing 20 are set to be large. Thus, it is very difficult to remove the locking part 104 of the pull rope 102 from the housing 20 or to install the locking part 104 into the insertion cavity 201 of the housing 20, making it inconvenient to install and remove the locking part 104 and the insertion cavity 201 of the housing 20.

[0038] This invention features a snap-fit ​​groove 2011 on the inner wall of the insertion cavity 201 on the housing 20 of the charging gun or charging base. A locking part 104 is provided at one end of the pull rope 102 connected to the dust cover body 101. A telescopic component is installed inside the locking part 104. The telescopic component has a cantilever tongue 401 that at least partially extends outside the telescopic component and engages with the snap-fit ​​groove 2011, and a drive member 30 for controlling the telescopic component's extension and retraction state. When it is necessary to remove the locking part 104 from the housing 20... The extension and retraction state of the telescopic component is controlled by the drive component 30, which in turn controls the tongue 401 to exit from the slot 2011, thereby unlocking the locking part 104 from the insertion cavity 201 on the housing 20. This ensures that after the dust cover 10 is damaged, a new dust cover 10 can be easily installed on the housing 20 of the charging gun or charging base, enabling independent secondary replacement at the end customer without after-sales service. This also provides good protection for the charging head of the charging gun or the charging interface of the charging base that uses this dust cover structure.

[0039] In some embodiments, such as Figure 6 As shown, the telescopic assembly includes an elastic element 50 and a telescopic body 40 slidably disposed in the cavity 1041. The suspension tongue 401 is disposed at one end of the telescopic body 40 facing the snap-fit ​​groove 2011, and the elastic element 50 is pressed between the other end of the telescopic body 40 and the inner wall of the cavity 1041.

[0040] The elastic body provides elastic support when the tongue 401 of the telescopic body 40 engages with the locking groove 2011, and ensures that the drive member 30 can control the telescopic body 40 to elastically retract in order to separate the tongue 401 from the locking groove 2011.

[0041] In some embodiments, such as Figure 4 , Figure 8 As shown, at least one of the telescopic body 40 and the cavity 1041 is provided with a receiving groove for accommodating the elastic member 50.

[0042] The elastic element 50 is housed in the receiving groove, which can fix the elastic element 50 to prevent it from moving around, and also ensure that the elastic inward contraction direction of the telescopic body 40 is guided and moves inward in the correct direction.

[0043] In some embodiments, such as Figure 4 As shown, the elastic element 50 is a compression spring.

[0044] The compression spring can provide elastic support for the telescopic body 40, ensuring the stable engagement of the tongue 401 and the locking groove 2011, preventing the pull rope 102 from falling off the housing 20, and ensuring that the telescopic body 40 can be elastically retracted when the driving component 30 drives the telescopic body 40 to move. This not only ensures that the tongue 401 on the telescopic body 40 can be smoothly separated from the locking groove, but also plays a buffering role to prevent damage to the telescopic body 40 during the driving process.

[0045] In some embodiments, such as Figure 3 , Figure 4 , Figure 6 and Figure 8 As shown, a drive hole 402 is provided through the telescopic body 40 along the direction in which the locking part 104 is inserted into the insertion cavity 201. The drive member 30 is slidably disposed in the cavity 1041 along the direction in which the locking part 104 is inserted into the insertion cavity 201. A drive block 301 is provided protruding from the end face of the drive member 30 facing the telescopic body 40 and is suspended in the drive hole 402. The end of the drive block 301 away from the tongue 401 has a drive inclined surface 3011 that abuts against the inner wall of the drive hole 402. Pressing the drive member 30 can cause the drive inclined surface 3011 of the drive block 301 to drive the telescopic body 40 to move inward, thereby causing the tongue 401 to exit from the locking groove 2011.

[0046] The driving inclined surface 3011 of the driving block 301 drives the telescopic body 40 to move inward, and the cantilever tongue 401 follows the telescopic body 40 to move inward and exit from the snap-fit ​​groove 2011, releasing the lock with the snap-fit ​​groove 2011, thereby ensuring that the locking part 104 can be removed from the insertion cavity 201, thus ensuring the quick and smooth disassembly of the dust cover structure. The structure is conveniently designed and easy to operate.

[0047] In some embodiments, such as Figure 9 As shown, a first slide rail 1042 is provided inside the cavity 1041 along the direction perpendicular to the direction in which the locking part 104 is inserted into the insertion cavity 201, and a first slider 403 is correspondingly provided on the side wall of the telescopic body 40; a second slide rail 1043 is provided inside the cavity 1041 along the direction in which the locking part 104 is inserted into the insertion cavity 201, and a second slider 302 is correspondingly provided on the side wall of the driving member 30.

[0048] The cooperation between the first slider 403 and the first slide rail 1042 not only guides the telescopic body 40 to be quickly inserted into the cavity 1041, but also ensures that the telescopic body 40 can perform reciprocating linear telescopic motion along a given direction. The cooperation design between the second slider 302 and the second slide rail 1043 not only guides the drive component 30 to be quickly inserted into the cavity 1041, but also provides a fixed direction of movement when the drive component 30 controls the telescopic assembly, thereby ensuring that the cantilever tongue 401 of the telescopic body 40 can quickly disengage from the locking groove 2011. This cooperation can ensure that the moving parts remain stable during the movement, reduce friction and wear, and thus improve the accuracy and life of each component.

[0049] In some embodiments, such as Figure 3As shown, a hook portion 303 is formed on the inner side of the second slider 302, and a limiting portion 405 is provided on the side wall of the telescopic body 40 for limiting the initial position of the driving member 30. When the driving member 30 is in the initial position, the hook portion 303 and the limiting portion 405 are engaged to stop it.

[0050] The hook 303 and the limiting part 405 cooperate to prevent the drive part from exiting too far from the cavity 1041 and being exposed on the upper surface of the locking part 104, which would cause the locking part 104 of the pull rope 102 to fall out of the insertion cavity 201 due to unexpected pressing. It also prevents the drive part from disengaging from the cavity 1041, which would cause it to be lost and fall off, thus preventing the drive telescopic component from retracting and thus preventing the locking part 104 from unlocking the insertion cavity 201.

[0051] In some embodiments, such as Figures 8-9 As shown, the inner wall of the cavity 1041 is provided with a third slide rail 1044 along the sliding direction of the telescopic body 40, and the outer wall of the telescopic body 40 is provided with a third slider 404 that slides in cooperation with the third slide rail 1044.

[0052] The sliding engagement of the third slider 404 and the third slide rail 1044 is to assist the telescopic body 40 in being inserted into the cavity 1041, and to assist the telescopic body 40 in elastically retracting and unlocking the tongue 401 and engaging with the locking groove 2011, thereby providing auxiliary guidance for the elastic retraction direction of the telescopic body 40.

[0053] In some embodiments, the maximum compression stroke of the compression spring is not less than the maximum locking length of the latch 401 and the locking groove 2011.

[0054] The structure here is designed to ensure that the cantilever tongue 401 can be completely disengaged from the locking groove 2011 and released from the locking groove 2011, so as to ensure that the locking part 104 of the pull rope 102 can be disassembled from the insertion cavity 201.

[0055] In some embodiments, such as Figure 1 As shown, when the driving member 30 is in the initial position, the outer surface of the driving member 30 is flush with or lower than the outer surface of the locking part 104.

[0056] The outer surface of the driving component 30 is flush with or lower than the outer surface of the locking part 104. This is for several reasons: first, it allows the operator to press the driving component 30 to retract the telescopic assembly and release the engagement with the locking groove 2011; second, it protects the driving component 30 from accidental pressing, which could cause the pull rope 102 to disconnect from the housing 20, thus preventing the dust cover 10 from falling off and failing to provide protection; and third, it is for aesthetic purposes.

[0057] In some embodiments, such as Figure 1 As shown, a base 103 is provided between the locking part 104 and the pull rope 102, and the base 103 has a support surface 1031 that matches the shape of the housing 20 of the charging gun or charging base.

[0058] The design of the support surface 1031 not only limits the maximum depth of the locking part 104 inserted into the plug cavity 201, but also makes the support surface 1031 match the shape of the housing 20 of the charging gun or charging base, which also contributes to the aesthetic appearance.

[0059] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A dust cover structure characterized by comprising: The dust cover body and the pull rope are fixedly connected at one end, the other end of the pull rope is provided with a locking part which is detachably connected with the charging gun or the charging seat, a plug-in cavity for plugging the locking part is formed on the shell of the charging gun or the charging seat, and a clamping groove matched with the locking part is arranged on the inner wall of the plug-in cavity; a cavity is arranged in the locking part, a telescopic assembly is slidably arranged in the cavity in a direction perpendicular to the locking part being arranged in the plug-in cavity, a tongue is protrudingly arranged at one end of the telescopic assembly facing the clamping groove, the tongue is at least partially suspended outside the locking part and is clamped and matched with the clamping groove, and a driving piece for controlling the telescopic state of the telescopic assembly is further arranged in the cavity, so as to control the tongue to exit from the clamping groove when the locking part is detached from the plug-in cavity.

2. The dust cover structure according to claim 1, wherein The telescopic assembly comprises an elastic piece and a telescopic body slidably arranged in the cavity, and the tongue is arranged at one end of the telescopic body facing the clamping groove.

3. The dust cover structure of claim 2, wherein The telescopic body and the cavity are provided with a receiving groove for accommodating the elastic piece.

4. The dust cover structure of claim 2, wherein The elastic piece is a compression spring.

5. The dust cover structure of claim 2, wherein The telescopic body is provided with a driving hole penetrating in the direction of the locking part being arranged in the plug-in cavity, the driving piece is slidably arranged in the cavity in the direction of the locking part being arranged in the plug-in cavity, and a driving block protrudingly arranged on the end face of the telescopic body and suspended in the driving hole is arranged at the driving piece, one end of the driving block away from the tongue is provided with a driving slope abutting against the inner wall of the driving hole, and the driving slope of the driving block is driven to move inward, so that the tongue is driven to exit from the clamping groove.

6. The dust cover structure of claim 2, wherein A first sliding groove is arranged in the cavity in a direction perpendicular to the locking part being arranged in the plug-in cavity, and a first sliding block is correspondingly arranged on the side wall of the telescopic body. A second sliding groove is arranged in the cavity in the direction of the locking part being arranged in the plug-in cavity, and a second sliding block is correspondingly arranged on the side wall of the driving piece.

7. The dust cover structure of claim 6, wherein The inner side of the second sliding block is formed with a hook part, and a limiting part for limiting the initial position of the driving piece is arranged on the side wall of the telescopic body, and the hook part and the limiting part are in abutting cooperation when the driving piece is in the initial position.

8. The dust cover structure of claim 6, wherein A third sliding groove is arranged on the inner wall of the cavity in the sliding direction of the telescopic body, and a third sliding block is arranged on the outer wall of the telescopic body and slidably matched with the third sliding groove.

9. The dust cover structure of claim 4, wherein The maximum compression stroke of the compression spring is not less than the maximum clamping locking length of the tongue and the clamping groove.

10. The dust cover structure of claim 1, wherein When the driving piece is in the initial position, the outer surface of the driving piece is flush with or lower than the outer surface of the locking part.

11. The dust cover structure of claim 1, wherein A base body is arranged between the locking part and the pull rope, and the base body has a supporting surface matched with the shape of the shell of the charging gun or the charging seat.

Images