Lift latch structure

Abstract

This application relates to a snap-fit ​​structure for a window regulator. The first side of the connecting portion of the snap-fit ​​structure has an assembly groove, and the bottom of the assembly groove has a first connecting hole extending to the second side. The bottom of the assembly groove has an assembly channel surrounding the outer periphery of the first connecting hole. The assembly channel has a first end and a second end; the first end is recessed into the bottom of the assembly groove, and the second end extends to the inner surface of the bottom of the assembly groove. A door inner panel is attached to the second side of the window regulator, and the door inner panel has a second connecting hole communicating with the first connecting hole. The snap-fit ​​body of the snap-fit ​​component passes through the first and second connecting holes from the first side of the window regulator. A first positioning arm and a second positioning arm are connected to the periphery of the snap-fit ​​body. The first positioning arm rests on the assembly channel, and the second positioning arm is located on the side of the door inner panel facing away from the window regulator. The snap-fit ​​component switches between a first state and a second state. This application improves operational convenience and reduces costs.

Description

Technical Field

[0001] This application belongs to the field of vehicle component technology, specifically relating to a lifter snap-fit ​​structure. Background Technology

[0002] Automotive window regulators are mostly fixed to the inner panel of the car door with screws and welded nuts. However, due to the large size and weight of the regulators, welding is extremely inconvenient and costly. Summary of the Invention

[0003] Based on the above-mentioned technical problems, this application provides a lifter snap-fit ​​structure to avoid the inconvenience of operation and high cost caused by welding the lifter and the inner panel of the door.

[0004] This application is achieved through the following technical solution:

[0005] A lifter latching structure includes: a lifter having a connecting portion, the connecting portion having a first side and a second side, the first side of the connecting portion having an assembly groove, the bottom of the assembly groove having a first connecting hole extending to the second side, the bottom of the assembly groove having an assembly channel surrounding the outer periphery of the first connecting hole, the assembly channel having a first end and a second end, the first end being recessed into the bottom of the assembly groove, and the second end extending to the inner surface of the bottom of the assembly groove; a door inner panel attached to the second side of the lifter, the door inner panel having a second connecting hole communicating with the first connecting hole; and a latching component including a latching body, a first positioning arm, and a second positioning arm. The snap-fit ​​body passes through the first connecting hole and the second connecting hole from the first side of the lifter. The first positioning arm and the second positioning arm are connected to the circumferential surface of the snap-fit ​​body. The first positioning arm rests on the assembly channel, and the second positioning arm is located on the side of the door inner panel facing away from the lifter. The snap-fit ​​component switches between a first state and a second state, wherein: when the snap-fit ​​component is in the first state, the first positioning arm rests on the first end of the assembly channel, and the second positioning arm is at a distance from the door inner panel; when the snap-fit ​​component is rotated, the first positioning arm moves along the assembly channel to the bottom of the assembly slot, and the second positioning arm fits against the door inner panel. The snap-fit ​​component is in the second state, and the snap-fit ​​component locks the door inner panel and the lifter.

[0006] The lifter locking structure provided in this application allows the locking component to be switched from a first state to a second state simply by rotating it, thereby locking the door inner panel and the lifter together. This eliminates the need for welding to connect the lifter and the door inner panel, improving ease of operation and reducing costs.

[0007] In some implementations, the inner surface of the bottom of the assembly groove is provided with a first positioning protrusion, and the distance between the first positioning protrusion and the second end of the assembly channel is adapted to the first positioning arm.

[0008] In some embodiments, a second positioning protrusion is provided at the second end of the assembly channel, and the first positioning arm extends over the second positioning protrusion and is positioned between the second positioning protrusion and the first positioning protrusion.

[0009] In some implementations, at least a portion of the first positioning arm is elastic.

[0010] In some implementations, two or more assembly channels are provided circumferentially around the first connecting hole, and the first positioning arm and the assembly channel are provided in a one-to-one correspondence.

[0011] In some implementations, the central angle of the assembly channel is 90°.

[0012] In some embodiments, both the first connecting hole and the second connecting hole include: a central hole body adapted to the snap-fit ​​body; and a side hole body disposed on the peripheral edge of the central hole body and communicating with the central hole body, with the connecting portion passing through the side hole body.

[0013] In some implementations, multiple second positioning arms are provided around the circumference of the snap-fit ​​body, and the side holes and the second positioning arms are provided in a one-to-one correspondence.

[0014] In some implementations, the end of the snap-fit ​​body is provided with an operating hole.

[0015] In some embodiments, the lifting device snap-fit ​​structure further includes a seal connected between the snap-fit ​​body and the sidewall of the mounting groove. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the lifting device snap-fit ​​structure in one or more embodiments of this application is shown;

[0018] Figure 2 It shows Figure 1 A cross-sectional schematic diagram;

[0019] Figure 3 It shows Figure 1 An explosion diagram;

[0020] Figure 4 A partial front view of the elevator 100 is shown;

[0021] Figure 5 It shows Figure 4 Axial view schematic diagram;

[0022] Figure 6 A partial schematic diagram of the door inner panel 200 is shown;

[0023] Figure 7 A schematic diagram of the snap-fit ​​connector 300 is shown;

[0024] Figure 8 It shows Figure 5 A top-down view.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Lifter; 110. Connecting part; 111. First side; 112. Second side; 113. Assembly groove; 114. First connecting hole; 1141. Central hole; 1142. Side hole; 115. Assembly channel; 116. First positioning protrusion; 117. Second positioning protrusion; 118. Support protrusion;

[0027] 200. Door inner panel; 210. Second connecting hole;

[0028] 300, Snap-fit ​​component; 310, Snap-fit ​​body; 320, First positioning arm; 330, Second positioning arm; 340, Operating hole; 350, Insertion part;

[0029] 400. Sealing components. Detailed Implementation

[0030] The technical solutions in this application will now be clearly and thoroughly described with reference to the accompanying drawings. Specifically, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] Automotive window regulators are the devices that raise and lower car windows, and are an essential component of automobiles. In related technologies, automotive window regulators are mostly fixed to the inner panel of the door using screws and welded nuts. However, due to the large size and weight of the regulators, welding is extremely inconvenient, and the extensive use of metal parts increases vehicle weight and material costs, which is inconsistent with the lightweight development of modern automobiles and also increases driving noise.

[0033] To address the aforementioned technical problems, this application provides a snap-fit ​​structure for a window regulator, thereby avoiding the operational inconvenience and high cost associated with welding the window regulator to the door inner panel. The specific details of this snap-fit ​​structure are now further described with reference to the accompanying drawings.

[0034] Figure 1 A schematic diagram of the lifting device snap-fit ​​structure in one or more embodiments of this application is shown. Figure 2 It shows Figure 1 A cross-sectional schematic diagram, Figure 3 It shows Figure 1 An exploded view diagram is provided. Due to the large size of the lifter 100 and the door inner panel 200, only a portion of the lifter 100 and the door inner panel 200 are shown in the drawings of this application. Combined with... Figures 1-3 The snap-fit ​​structure of this application includes a lifter 100, a door inner panel 200, and a snap-fit ​​component 300, wherein the snap-fit ​​component 300 can switch between a first state and a second state to unlock or lock the lifter 100 and the door inner panel.

[0035] Figure 4 A partial front view of the elevator 100 is shown. Figure 5 It shows Figure 4 Axial view schematic diagram. Combined with... Figure 4 as well as Figure 5 The lifting device 100 has a connecting part 110, which has a first side 111 and a second side 112. The first side 111 of the connecting part 110 has an assembly groove 113. The bottom of the assembly groove 113 has a first connecting hole 114, which extends to the second side 112. The bottom of the assembly groove 113 has an assembly channel 115, which is arranged around the outer side of the first connecting hole 114. The assembly channel 115 has a first end and a second end. The first end is recessed into the bottom of the assembly groove 113, and the second end extends to the inner surface of the bottom of the assembly groove 113.

[0036] Figure 6 A partial schematic diagram of the door inner panel 200 is shown. Combined with... Figure 2 as well as Figure 6The door inner panel 200 is attached to the second side 112 of the lifter 100. The door inner panel 200 is provided with a second connecting hole 210, which communicates with the first connecting hole 114.

[0037] Figure 7 A schematic diagram of the snap-fit ​​connector 300 is shown, in conjunction with... Figure 7 The snap-fit ​​component 300 includes a snap-fit ​​body 310, a first positioning arm 320 and a second positioning arm 330. The first positioning arm 320 and the second positioning arm 330 are both connected to the circumferential surface of the snap-fit ​​body 310, and the first positioning arm 320 and the second positioning arm 330 are spaced apart along the axial direction of the snap-fit ​​body 310.

[0038] Combination Figure 2 The snap-fit ​​body 310 passes through the first connecting hole 114 and the second connecting hole 210 from the first side 111 of the lifter 100. The first positioning arm 320 is placed on the assembly channel 115, and the second positioning arm 330 is located on the side of the door inner panel 200 facing away from the lifter 100. The snap-fit ​​component 300 switches between a first state and a second state, wherein: when the snap-fit ​​component 300 is in the first state, the first positioning arm 320 is placed on the first end of the assembly channel 115, and the second positioning arm 330 is at a distance from the door inner panel 200; when the snap-fit ​​component 300 is rotated, the first positioning arm 320 moves along the assembly channel 115 to the bottom of the assembly groove 113, and the second positioning arm 330 is in contact with the door inner panel 200. The snap-fit ​​component 300 is in the second state, and the snap-fit ​​component 300 locks the door inner panel 200 and the lifter 100.

[0039] The lifting device snap-fit ​​structure provided in this application allows the snap-fit ​​component 300 to be switched from a first state to a second state simply by rotating it, thereby locking the door inner panel 200 and the lifting device 100 together. This eliminates the need for welding to connect the lifting device 100 and the door inner panel, improving ease of operation and reducing costs.

[0040] Combination Figure 4 as well as Figure 5 The connecting part 110 may have a cylindrical structure, with one axial end being a first side 111 and the other axial end being a second side 112. The first side 111 of the connecting part 110 is open, and the second side 112 of the connecting part 110 is closed, so that the aforementioned assembly groove 113 is formed inside the connecting part 110.

[0041] Figure 8 It shows Figure 5 A top-down view diagram, combined with Figure 5 as well as Figure 8The first connecting hole 114 includes a central hole 1141 and a side hole 1142. The central hole 1141 is adapted to the snap-fit ​​body 310. The side hole 1142 is disposed at the peripheral edge of the central hole 1141 and communicates with the central hole 1141. The connecting portion 110 of the snap-fit ​​member 300 passes through the side hole 1142 with a gap. When assembling the snap-fit ​​member 300, the snap-fit ​​member 300 passes through the bottom of the mounting groove 113 from the central hole 1141 and is placed outside the second side 112 of the connecting portion 110. The connecting portion 110 also passes through the side hole 1142 from the bottom of the mounting groove 113 and is placed outside the second side 112 of the connecting portion 110.

[0042] Combination Figure 5 , Figure 7 as well as Figure 8 In some embodiments, the snap-fit ​​body 310 is generally a columnar structure, and correspondingly, the central hole 1141 is a circular hole, through which the snap-fit ​​body 310 can pass; while the first positioning arm 320 and the second positioning arm 330 are both rod-shaped structures, and the first positioning arm 320 and the second positioning arm 330 are integrally formed with the snap-fit ​​body 310, so that the snap-fit ​​part 300 has sufficient strength and improves the reliability of the assembly and locking of the connector and the door inner panel 200.

[0043] Combination Figure 5 , Figure 7 as well as Figure 8 In some embodiments, multiple first positioning arms 320 and second positioning arms 330 can be provided around the circumference of the snap-fit ​​body 310. Correspondingly, the assembly channel 115 and the first positioning arm 320 are provided one-to-one. The first positioning arm 320 can rotate on the corresponding assembly channel 115. The side hole 1142 and the second positioning arm 330 are provided one-to-one. The second positioning arm 330 can pass through the corresponding side hole 1142.

[0044] Combination Figure 5 , Figure 7 as well as Figure 8 For this application, there are two of each of the first positioning arm 320 and the second positioning arm 330. The two first positioning arms 320 are arranged on opposite sides of the central axis of the snap-fit ​​body 310, and the two second positioning arms 330 are also arranged on opposite sides of the central axis of the snap-fit ​​body 310. The length of the first positioning arm 320 is less than the length of the second positioning arm 330. Correspondingly, the two assembly channels 115 are arranged on opposite sides of the central axis of the central hole 1141, and the two side holes 1142 are located on both sides of the central hole 1141, so that the first connecting hole 114 is approximately strip-shaped.

[0045] Combination Figure 5 as well as Figure 8In some embodiments, the assembly channel 115 is a groove structure disposed at the bottom of the assembly groove 113. The first end of the assembly channel 115 is connected to the edge of the side hole 1142. The inner side of the assembly channel 115 is open. The assembly channel 115 is spirally arranged, and the second end of the assembly channel 115 spirals to the inner surface of the bottom of the assembly groove 113. In addition, when the snap-fit ​​300 is in the first state, the distance from the second positioning arm 330 to the door inner panel 200 is consistent with the depth of the assembly channel 115. Therefore, when the snap-fit ​​300 is in the second state and the first positioning arm 320 moves to the inner surface of the bottom of the groove, the second positioning arm 330 is just attached to the door inner panel 200.

[0046] In some embodiments, the central angle of the assembly channel 115 is 90°, that is, the snap-fit ​​300 can be switched between the first state and the second state by rotating 90°. In other embodiments, the central angle of the assembly channel 115 may also be other degrees between 60° and 120°, such as 60°, 80°, 100° or 120°, and this application does not limit this.

[0047] Combination Figure 5 as well as Figure 8 In some embodiments, a first positioning protrusion 116 is provided on the inner surface of the bottom of the assembly groove 113. The distance between the positioning protrusion and the second end of the assembly channel 115 is adapted to the first positioning arm 320. When the snap-fit ​​member 300 is in the second state, the first positioning arm 320 is blocked by the first positioning protrusion 116 to limit the rotation of the snap-fit ​​member 300. In a specific implementation, one end of the first positioning protrusion 116 abuts against the side wall of the assembly groove 113, and the first positioning protrusion 116 extends to the edge of the first connecting hole 114. In addition, a support protrusion 118 is connected to the back of the first positioning protrusion 116, and the support protrusion 118 also abuts against the side wall of the assembly groove 113. The support protrusion 118 and the first positioning protrusion 116 are arranged at an angle (e.g., 90°) to improve the strength of the first positioning protrusion 116.

[0048] Combination Figure 5 as well as Figure 8In some embodiments, a second positioning protrusion 117 is provided at the second end of the assembly channel 115, and a first positioning arm 320 extends beyond the second positioning protrusion 117 and is positioned between the second positioning protrusion 117 and the first positioning protrusion 116. The arrangement of the second positioning protrusion 117 and the first positioning protrusion 116 allows the first positioning arm 320 to be confined between the second positioning protrusion 117 and the first positioning protrusion 116 when the latching member 300 is in its second state, thereby maintaining the door inner panel 200 and the lifter 100 in a locked state. In specific implementation, the first positioning protrusion 116, the second positioning protrusion 117, and the support protrusion can all be integrally formed on the bottom of the assembly groove 113, so that the first positioning protrusion 116, the second positioning protrusion 117, and the support protrusion 118 have sufficient strength. In addition, the first positioning protrusion 116 and the support protrusion 118 have the same height, and the second positioning protrusion 117 is lower than the first positioning protrusion 116 and the support protrusion 118. The second positioning protrusion 117 only protrudes a certain height from the bottom of the assembly groove 113, so that the first positioning arm 320 can pass smoothly.

[0049] In some embodiments, at least a portion of the first positioning arm 320 is elastic. This arrangement allows the distance from the second positioning arm 330 to the door inner panel 200 to be slightly less than the depth of the assembly channel 115 when the latching member 300 is in its first state. This allows the second positioning arm 330 to adhere to the door inner panel 200 when the latching member 300 is in its second state and the first positioning arm 320 moves to the inner surface of the groove bottom. The first positioning arm 320 deforms to improve the locking force and reliability of the lifter 100 and the door inner panel. Furthermore, because at least a portion of the first positioning arm 320 is elastic, it allows the first positioning arm 320 to smoothly pass over the second positioning protrusion 117. In a specific implementation, the first positioning arm 320 includes an arm body and an elastic layer wrapped around the periphery of the arm body. This elastic layer can be made of rubber and can be vulcanized onto the periphery of the arm body. This design allows the first positioning arm 320 to be both elastic and rigid, ensuring that it remains positioned between the first positioning protrusion 116 and the second positioning protrusion 117. In other embodiments, the first positioning arm 320 may also be entirely elastic; this application does not impose any limitations on this.

[0050] Combination Figures 1-3In some embodiments, an operation hole 340 is provided at the end of the snap-fit ​​body 310. During operation, a user can insert a tool into the operation hole 340 of the snap-fit ​​body 310 to apply force to the snap-fit ​​body 310, facilitating the rotation of the snap-fit ​​component 300. Specifically, the operation hole 340 is provided at the end of the snap-fit ​​body 310 facing the first side 111 of the connecting portion 110. This operation hole is polygonal, such as a star or a regular polygon. In other embodiments, both ends of the snap-fit ​​body 310 can be provided with operation holes 340. The operation hole 340 can also be other non-circular shapes, such as ellipse or oval, and this application does not limit this.

[0051] Combination Figures 1-3 as well as Figure 7 In some embodiments, the lifting device locking structure further includes a seal 400, which is connected between the locking body 310 and the side wall of the mounting groove 113 to prevent dust and other impurities from entering the mounting groove 113 from the opening side, thus avoiding abnormal noises and other problems during vehicle operation. Specifically, the seal 400 is annular, with its outer side abutting against the side wall of the mounting groove 113. The circumferential surface of the locking member 300 is provided with an insertion portion 350, which is a thin sheet structure inserted into the inner side of the seal 400, thereby assembling the seal 400 between the locking body 310 and the side wall of the mounting groove 113.

[0052] In some embodiments, the snap-fit ​​connector 300 may be made of plastic to reduce product weight, lower production costs, reduce noise during driving, and improve the perceived quality of life for drivers and passengers.

[0053] The structure of the second connecting hole 210 on the inner panel 200 of the door is similar to that of the first connecting hole 114. For details, please refer to the relevant description of the first connecting hole 114. This application will not repeat the details here.

[0054] In summary, the lifter snap-fit ​​structure provided in this application uses snap-fit ​​parts 300 instead of metal screws and nuts for connection, avoiding complex operations such as welding on the inner panel 200 of the door, thereby improving assembly efficiency and reducing production costs. It can also reduce noise during driving and improve the perceived quality of life for drivers and passengers, and has great practicality.

[0055] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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.

[0057] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0058] In the description of this application, unless otherwise expressly 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 being 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 being 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.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0060] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and modifications.

Claims

1. A lift linkage structure, characterized by, The snap-fit ​​structure includes: A lifting device has a connecting part, the connecting part has a first side and a second side, the first side of the connecting part has an assembly groove, the bottom of the assembly groove has a first connecting hole, the first connecting hole extends to the second side, the bottom of the assembly groove has an assembly channel, the assembly channel is arranged around the outer side of the circumferential surface of the first connecting hole, the assembly channel has a first end and a second end, the first end is recessed in the bottom of the assembly groove, and the second end extends to the inner surface of the bottom of the assembly groove; The door inner panel is attached to the second side of the lifter, and the door inner panel is provided with a second connecting hole, which communicates with the first connecting hole; The snap-fit ​​component includes a snap-fit ​​body, a first positioning arm, and a second positioning arm. The snap-fit ​​body passes through the first connecting hole and the second connecting hole from a first side of the lifter. The first positioning arm and the second positioning arm are connected to the circumferential surface of the snap-fit ​​body. The first positioning arm rests on the assembly channel, and the second positioning arm is located on the side of the door inner panel facing away from the lifter. The snap-fit ​​component switches between a first state and a second state, wherein: When the snap-fit ​​component is in the first state, the first positioning arm is placed at the first end of the assembly channel, and the second positioning arm and the door inner panel are at a distance. Rotating the latching member causes the first positioning arm to move along the assembly channel to the bottom of the assembly slot, and the second positioning arm to engage with the door inner panel. The latching member is in the second state, and the latching member locks the door inner panel and the lifter.

2. The lifter dog structure according to claim 1, wherein The inner surface of the bottom of the assembly groove is provided with a first positioning protrusion, and the distance between the first positioning protrusion and the second end of the assembly channel is adapted to the first positioning arm.

3. The lifter dog structure according to claim 2, wherein The second end of the assembly channel is provided with a second positioning protrusion, and the first positioning arm passes over the second positioning protrusion and is positioned between the second positioning protrusion and the first positioning protrusion.

4. The lift latch structure according to any one of claims 1 to 3, wherein At least a portion of the first positioning arm is elastic.

5. The lifter dog structure according to any one of claims 1 to 3, wherein The assembly channel is provided in two or more circumferentially spaced around the first connecting hole, and the first positioning arm and the assembly channel are provided in a one-to-one correspondence.

6. The lifter dog structure according to any one of claims 1 to 3, wherein The central angle of the assembly channel is 90°.

7. The lifter dog structure according to any one of claims 1 to 3, wherein Both the first connecting hole and the second connecting hole include: The central hole is adapted to the snap-fit ​​body; A side hole is provided on the peripheral edge of the central hole and communicates with the central hole. The connecting part passes through the side hole.

8. The lifter dog interface structure of claim 7, wherein, Multiple second positioning arms are provided around the circumference of the snap-fit ​​body, and the side holes are provided one-to-one with the second positioning arms.

9. The lifter latch structure of any one of claims 1-3, wherein, An operating hole is provided at the end of the snap-fit ​​body.

10. The lifter dog structure according to any one of claims 1 to 3, wherein The snap-fit ​​structure also includes a seal, which is connected between the snap-fit ​​body and the side wall of the assembly groove.

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