Anti-drop connecting structure

Abstract

The utility model discloses an anti-drop connecting structure. The anti-disengaging connecting structure comprises an elastic piece arranged on the first component, a sliding groove and a clamping groove, the sliding groove and the clamping groove are formed in the second component, the tail end of the sliding groove is communicated with the clamping groove, the depth of the clamping groove is larger than that of the sliding groove, the elastic piece slides into the clamping groove through the sliding groove, the clamping groove is provided with a front side wall and a rear side wall, and the front side wall and the rear side wall are communicated with each other. An inlet of the sliding groove is located in one end face of the second component and provided with a first guiding inclined face used for guiding the elastic piece. When the elastic piece is located in the sliding groove, the elastic piece is compressed and bent. When the elastic piece is located in the clamping groove, the elastic piece is limited between the front side wall and the rear side wall of the clamping groove. The anti-falling connection structure is convenient to install, can prevent falling and does not need to be fixed through screws.

Description

Technical Field

[0001] The utility model relates to the technical field of connection between two components, in particular to an anti-detachment connection structure. Background Art

[0002] Two components are usually fixedly installed by screws. Although this method can fix the two components tightly, the operation is troublesome and requires workers to drive screws; there is also a way of snap connection. Although it only needs to be rotated during assembly to complete the snap connection, the snap connection can be easily opened, and for connections that do not need to be disassembled after installation, such as the component connection of a gas solenoid valve, the snap connection method is not applicable. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an anti-detachment connection structure that is convenient for assembly and can prevent detachment.

[0004] To solve the above problems, the utility model provides an anti-detachment connection structure, which includes a spring piece provided on a first component, and a chute and a clamping groove provided on a second component. The end of the chute communicates with the clamping groove. The depth of the clamping groove is greater than the depth of the chute. The spring piece slides into the clamping groove through the chute. The clamping groove has a front side wall and a rear side wall. The entrance of the chute is located on one end face of the second component. A first guiding inclined surface for guiding the spring piece is provided at the entrance of the chute. When the spring piece is located in the chute, the spring piece is compressed and bent. When the spring piece is located in the clamping groove, the spring piece is restricted between the front side wall and the rear side wall of the clamping groove.

[0005] Further, there are at least two chutes, clamping grooves and spring pieces. The spring pieces are arranged in one-to-one correspondence with the chutes and the clamping grooves at the same time, and the spring pieces are evenly distributed on the first component.

[0006] Further, the spring piece is obliquely arranged on the first component, and an inclined surface adapted to the spring piece is provided on the bottom of the clamping groove.

[0007] Further, the inner end of the front side wall is close to the chute, the outer end of the front side wall is far from the chute, and the end face of the front end of the spring piece is obliquely arranged and adapted to the front side wall of the clamping groove.

[0008] Further, the thickness of the front end of the spring piece is less than the thickness of the rear end of the spring piece.

[0009] Further, an avoidance groove is provided on the first component. The avoidance groove is located at the connection between the spring piece and the first component, and is close to the front end side of the spring piece.

[0010] Further, the chute includes a vertical section and a horizontal section connected to the lower end of the vertical section. The upper end of the vertical section is used as the entrance of the chute.

[0011] Further, a second guiding inclined surface is provided at the connection between the vertical section and the horizontal section.

[0012] Further, the sliding groove is spiral.

[0013] Further, the elastic piece is located on the inner side wall of the first component.

[0014] The anti - detachment connection structure of the present utility model utilizes the elasticity of the elastic piece to insert the elastic piece into the card slot. Rotating the first component or the second component slides the elastic piece along the sliding groove into the card slot. The front end and the rear end of the elastic piece simultaneously abut against the front side wall and the rear side wall of the card slot, so that the elastic piece is stuck in the card slot and cannot be pulled out, which can effectively prevent the first component and the second component from detaching. To disassemble the connection between the first component and the second component, only violent destruction can be used. During installation, no screws are required for installation, and only insertion and rotation are needed, making the installation convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a gas solenoid valve provided with the anti - detachment connection structure of the present utility model.

[0016] Figure 2 is a schematic structural diagram of the elastic piece stuck in the card slot.

[0017] Figure 3 is Figure 2 a partial enlarged view of A in

[0018] Figure 4 is a schematic structural diagram of the valve cover.

[0019] Figure 5 is a schematic structural diagram of the elastic piece.

[0020] Figure 6 is a schematic structural diagram of the elastic piece arranged on the outer wall of the housing.

[0021] Figure 7 is a schematic structural diagram of the valve cover as the first component and the housing as the second component.

[0022] The meanings of the reference numerals in the drawings are as follows:

[0023] Valve body 1, valve cover 2, sliding groove 21, first guiding inclined surface 210, vertical section 211, horizontal section 212, second guiding inclined surface 213, card slot 22, front side wall 221, rear side wall 222, housing 3, elastic piece 31, avoidance groove 32. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present utility model will be further described below with reference to the drawings.

[0025] In this embodiment, a gas solenoid valve is taken as an example for illustration. Of course, it can also be applied to other devices that do not need to be disassembled after installation.

[0026] As Figure 1 and Figure 2 shown, the gas solenoid valve includes a valve body 1, a valve cover 2, and a housing 3 of an electric actuator. The valve cover 2 is installed on the valve body 1. The housing 3 is fixed on the valve cover 2. The housing 3 serves as the first component, and the valve cover 2 serves as the second component.

[0027] As Figures 3 to 5 shown, a spring piece 31 is provided on the housing 3, a sliding groove 21 and a clamping groove 22 are provided on the valve cover 2. The spring piece 31 is adapted to the sliding groove 21 and the clamping groove 22. The end of the sliding groove 21 communicates with the clamping groove 22. The spring piece 31 slides into the clamping groove 22 through the sliding groove 21, thereby fixing the housing 3 of the electric actuator to the valve cover 2. The spring piece 31 is located on the inner side wall of the housing 3. After such assembly is completed, the entrance of the sliding groove 21 will be hidden, and the position of the entrance of the sliding groove 21 that cannot be observed. In other embodiments, the spring piece 31 can also be provided on the outer wall of the housing 3, corresponding to Figure 6 shown. Generally speaking, there are two sliding grooves 21, clamping grooves 22, and spring pieces 31. The spring pieces 31 are arranged in one-to-one correspondence with the sliding grooves 21 and the clamping grooves 22 respectively, that is, one spring piece 31 corresponds to one sliding groove 21 and one clamping groove 22. The spring pieces 31 are evenly distributed on the housing 3, and the sliding grooves 21 and the clamping grooves 22 are also evenly distributed on the valve cover 2. Of course, in other embodiments, more sliding grooves 21, clamping grooves 22, and spring pieces 31 can be provided, and the number can be set according to requirements. One end of the entrance of the sliding groove 21 is the front end, and the end where the sliding groove 21 is connected to the clamping groove 22 is the rear end. The spring piece 31 is taken as a reference. When the spring piece 31 is in the clamping groove 22, the end facing the sliding groove 21 is the front end, and the end of the spring piece 31 opposite to the sliding groove 21 is the rear end. It should be known that in other embodiments, as Figure 7 shown, the valve cover 2 can also be used as the first component, and the housing 3 can be used as the second component, that is, the spring piece 31 is provided on the valve cover 2, and the sliding groove 21 and the clamping groove 22 are provided on the housing 3.

[0028] The entrance of the sliding groove 21 is located at one end face of the valve cover 2, that is, the entrance of the sliding groove 21 starts from a certain end face of the valve cover 2, which can be the stepped surface of the valve cover 2 or the end face of the end head, ensuring that the elastic piece 31 can enter the sliding groove 21. A first guiding inclined surface 210 is provided at the entrance of the sliding groove 21, and the first guiding inclined surface 210 is used to guide the elastic piece 31, facilitating the guiding of the elastic piece 31 into the sliding groove 21, so that the elastic piece 31 changes from the normal state to the bent and deformed state, and the elastic piece 31 can be smoothly slid into the sliding groove 21 without taking much time and effort during assembly. The sliding groove 21 is L-shaped, that is, the sliding groove 21 includes a vertical section 211 and a horizontal section 212 connected to the lower end of the vertical section 211, and the upper end of the vertical section 211 serves as the entrance of the sliding groove 21. A second guiding inclined surface 213 is provided at the connection of the vertical section 211 and the horizontal section 212, facilitating the guiding of the elastic piece 31 to change from vertical movement to horizontal movement. Of course, the sliding groove 21 can also be set to other shapes according to requirements, such as the sliding groove 21 being spiral-shaped, etc.

[0029] The depth of the clamping groove 22 is greater than the depth of the sliding groove 21. The clamping groove 22 has a front side wall 221 and a rear side wall 222. When the elastic piece 31 is located in the clamping groove 22, the elastic piece 31 is restricted within the clamping groove 22, that is, the front end of the elastic piece 31 is restricted by the front side wall 221 of the clamping groove 22, and the rear end of the elastic piece 31 is restricted by the rear side wall 222 of the clamping groove 22; in this way, the elastic piece 31 can be clamped in the clamping groove 22, and it is impossible to rotate the elastic piece 31 out of the clamping groove 22 by reverse rotation. The front side wall 221 of the clamping groove 22 is inclined, the inner end of the front side wall 221 is close to the sliding groove 21, the outer end of the front side wall 221 is far from the sliding groove 21, the end face of the front end of the elastic piece 31 is inclined, and the end face of the front end of the elastic piece 31 is adapted to the front side wall 221 of the clamping groove 22, thus forming a locking structure. Even if the front end of the elastic piece 31 is rotated in the reverse direction, it will only be clamped in the clamping groove 22, further strengthening the stability of the fixation. The inner end of the above-mentioned front side wall 221 is the end of the front side wall 221 of the clamping groove 22 close to the center of the valve cover 2, and the outer end of the above-mentioned front side wall 221 is the end of the front side wall 221 of the clamping groove 22 close to the outer wall of the valve cover 2. The thickness of the front end of the elastic piece 31 is smaller than the thickness of the rear end of the elastic piece 31, facilitating the better insertion of the elastic piece 31 between the front side wall 221 of the clamping groove 22 and the bottom of the clamping groove 22.

[0030] The elastic piece 31 is inclined and arranged on the housing 3, and an inclined surface adapted to the elastic piece 31 is arranged on the bottom of the card slot 22, effectively preventing the front end of the elastic piece 31 from falling off from the card slot 22. It should be known that the elastic piece 31 has a certain elasticity, and under the action of an external force, the elastic piece 31 can be bent and deformed. When the elastic piece 31 is located in the sliding groove 21, the elastic piece 31 is compressed and bent. In this way, without changing the inner diameter of the housing 3, the elastic piece 31 can enter the sliding groove 21 and slide in the sliding groove 21.

[0031] An avoidance groove 32 is arranged on the housing 3. The avoidance groove 32 is located at the connection between the elastic piece 31 and the housing 3, and the avoidance groove 32 is close to one side of the front end of the elastic piece 31, so as to be able to reduce the restriction on the elastic piece 31, make the space for the elastic piece 31 to deform larger, improve the bending degree of the elastic piece 31 during deformation, be able to slide better in the sliding groove 21, and at the same time, the force required by the worker for assembly when the elastic piece 31 is inserted into the sliding groove 21 is also smaller, reducing the assembly difficulty.

[0032] During installation, align the elastic piece 31 on the housing 3 with the entrance of the sliding groove 21, and then insert the elastic piece 31 into the sliding groove 21. Under the guidance of the first guiding inclined surface 210, the elastic piece 31 is smoothly inserted into the sliding groove 21 and bent and deformed to adapt to the reduction of the distance between the elastic piece 31 and the bottom of the sliding groove 21 of the elastic piece 31. Then rotate the housing 3 or the valve cover 2 and the valve body 1, so that the elastic piece 31 slides into the card slot 22 along the sliding groove 21. After the elastic piece 31 slides into the card slot 22, the elastic piece 31 resumes, and the elastic piece 31 is restricted in the card slot 22 to complete the installation. During installation, only need to insert and then rotate, the installation is convenient and fast, no screws are needed, and it will not fall off after installation. It is impossible to disassemble the connection between the housing 3 and the valve cover 2, and the connection between the housing 3 and the valve cover 2 can only be disassembled by violent disassembly.

[0033] The above is only the implementation mode of the present invention, and does not limit the patent scope of the present invention accordingly. All equivalent structures made by using the description and drawings of the present invention, directly or indirectly applied in other related technical fields, are similarly within the patent protection scope of the present invention.

Claims

1. An anti-detachment connection structure, characterized in that: It includes a spring sheet arranged on the first component, and a slide groove and a clamping groove arranged on the second component, the end of the slide groove is connected with the clamping groove, the depth of the clamping groove is greater than the depth of the slide groove, the spring sheet slides into the clamping groove through the slide groove, the clamping groove has a front side wall and a rear side wall, the entrance of the slide groove is located at an end surface of the second component, and a first guiding inclined surface for guiding the spring sheet is arranged at the entrance of the slide groove; when the spring sheet is located in the slide groove, the spring sheet is compressed and bent; when the spring sheet is located in the clamping groove, the spring sheet is confined between the front side wall and the rear side wall of the clamping groove.

2. The anti-detachment connection structure according to claim 1, characterized in that: There are at least two of the slide grooves, the clamping grooves and the spring sheets, and the spring sheets are arranged in one-to-one correspondence with the slide grooves and the clamping grooves. The spring sheets are evenly distributed on the first component.

3. The anti-detachment connection structure according to claim 1, characterized in that: The spring piece is arranged obliquely on the first component, and the bottom of the slot is provided with an inclined surface adapted to the spring piece.

4. The anti-detachment connection structure according to claim 1, characterized in that: The inner end of the front side wall is close to the slide slot, the outer end of the front side wall is far away from the slide slot, and the end surface of the front end of the spring sheet is inclined and matched with the front side wall of the slot.

5. The anti-detachment connection structure according to claim 4, characterized in that: The thickness of the front end of the spring piece is smaller than the thickness of the rear end of the spring piece.

6. The anti-detachment connection structure according to claim 5, characterized in that: The first component is provided with an escape groove, the escape groove is located at the connection between the spring sheet and the first component, and the escape groove is close to the front end side of the spring sheet.

7. The anti-detachment connection structure according to claim 1, characterized in that: The chute comprises a vertical section and a horizontal section connected to the lower end of the vertical section, and the upper end of the vertical section is used as an entrance of the chute.

8. The anti-detachment connection structure according to claim 7, characterized in that: A second guiding slope is arranged at the connection between the vertical section and the horizontal section.

9. The anti-detachment connection structure according to claim 1, characterized in that: The slide groove is spiral-shaped.

10. The anti-detachment connection structure according to claim 1, characterized in that: The elastic sheet is located on the inner side wall of the first component.

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