Mortise and tenon joint structure assembling and fixing device

Abstract

The utility model discloses a tenon-and-mortise structure assembling and fixing device which can quickly finish the combined assembly of a shell and a shell cover, and comprises the following components: a shell of which the side wall is provided with a first through hole which penetrates through the inside and the outside; the shell cover comprises a shell cover body and a shell cover connecting part, the shell cover connecting part is connected with the shell cover body and can be inserted into the shell, a rotary mounting cavity is formed in the top of the shell cover body, a second through hole is formed in the outer side of the shell cover connecting part, the second through hole is communicated with the rotary mounting cavity, and a pin shaft is mounted in the second through hole; the rotating assembly is installed in the rotating installation cavity in the mode that the rotating assembly can rotate around the center of the rotating installation cavity, a sliding groove is formed in the position, corresponding to the pin shaft, of the outer side of the rotating assembly, the sliding groove extends in the circumferential direction of the rotating assembly, and the depth of the sliding groove is gradually increased from one side of the sliding groove to the other side of the sliding groove; the pin shaft slides to the shallow-depth side of the sliding groove along with rotation of the rotating assembly, and the rotating assembly pushes the pin shaft outwards so that the pin shaft can be inserted into the first through hole.

Description

Technical Field

[0001] The utility model relates to the technical field of shell structures, in particular to a mortise and tenon structure assembly and fixing device. Background Art

[0002] As an outer structural part, the housing is mainly used to protect the parts installed inside it. The existing housing generally includes a shell and a shell cover. After the parts are installed in the shell, the shell cover is closed, and finally the shell and the shell cover are locked and fixed with screws. However, the locking process of the shell and the shell cover with screws requires the use of a tool screwdriver, which is cumbersome and cannot quickly complete the assembly of the shell and the shell cover. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a mortise and tenon structure assembly and fixing device, which can quickly complete the combined assembly of a shell body and a shell cover.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] 4. The repairing kit for automotive dents, according to claim 1, wherein the second end of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0006] Preferably, one end of the pin shaft is connected to a limit block, and the side wall of the rotation installation cavity is concave to form a limit block installation position, and the limit block installation position is communicated with the second through hole.

[0007] Preferably, the side of the limit block away from the pin is an inclined surface or an arc surface.

[0008] Preferably, two first hooks are provided on the bottom surface of the rotating component, and two first slot holes are provided on the bottom surface of the rotating mounting cavity. The first slot holes are extended in a circumferential direction, and one end of the first slot hole extends and expands toward the center of the rotating mounting cavity to form a first insertion port for the first hook to be inserted. The first hook is inserted into the corresponding first slot hole through the first insertion port and can slide along the first slot hole.

[0009] Preferably, two second hooks are provided on the bottom surface of the rotating mounting cavity, and two second slot holes are provided on the bottom surface of the rotating component. The second slot holes are extended in a circumferential direction, and one end of the second slot hole extends and expands toward the center of the rotating component to form a second insertion port for the second hook to be inserted. The second hook is inserted into the corresponding second slot hole through the second insertion port and can slide along the second slot hole.

[0010] Preferably, a slot is provided on the top surface of the rotating assembly.

[0011] Preferably, the rotating assembly includes a rotating shell and a rotating top cover connected to the rotating shell, the sliding groove is arranged on the outer side of the rotating shell, and the straight groove is arranged on the top surface of the rotating top cover.

[0012] Preferably, at least two third hooks are provided on the bottom surface of the rotating top cover, a top cover mounting cavity is provided on the rotating shell, a limiting step and at least two cutout grooves are provided on the side of the top cover mounting cavity, a clamping block is provided above the cutout groove, and the third hook is inserted into the corresponding cutout groove and hooks the clamping block above the cutout groove.

[0013] Preferably, the cross-section of the shell is circular, triangular, square, rectangular, pentagonal or hexagonal.

[0014] Preferably, the shell, shell cover, pin shaft and rotating assembly are all plastic parts.

[0015] The beneficial technical effect of the utility model is that the above-mentioned mortise and tenon structure assembly and fixing device does not need to use screws to lock and fix the shell and the shell cover. Only by rotating the rotating component, the pin shaft can be pushed outward to insert the pin shaft into the first through hole on the side wall of the shell. The shell and the shell cover are locked and fixed by cooperating with the pin shaft and the first through hole, thereby quickly completing the combined assembly of the shell and the shell cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the exploded structure of the mortise and tenon structure assembly and fixing device of the utility model;

[0017] Figure 2 It is a cross-sectional view of the mortise and tenon structure assembly fixing device of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the shell cover of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the rotating shell of the utility model in one direction;

[0020] Figure 5 It is a schematic structural diagram of the rotating shell of the utility model in another direction;

[0021] Figure 6 It is a structural schematic diagram of the rotating top cover of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the pin shaft of the utility model. DETAILED DESCRIPTION

[0023] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments.

[0024] The utility model provides a mortise and tenon structure assembly and fixing device.

[0025] like Figure 1-7 As shown, in one embodiment of the utility model, the mortise and tenon structure assembly and fixing device includes a shell 10, a shell cover 20 and a rotating assembly 30, and the side wall of the shell 10 is provided with a first through hole 11 that penetrates inside and outside; the shell cover 20 includes a shell cover body 21 and a shell cover connecting portion 22, the shell cover connecting portion 22 is connected to the shell cover body 21 and can be inserted into the shell 10, and a rotating installation cavity 23 is provided on the top of the shell cover body 21, and a second through hole 24 is provided on the outer side of the shell cover connecting portion 22 corresponding to the first through hole 11, and the second through hole 24 is connected to the rotating installation cavity 23, and the second through hole 24 A pin shaft 40 is installed inside; the rotating component 30 is installed in the rotating installation cavity 23 in a manner that it can rotate around the center of the rotating installation cavity 23, and a slide groove 33 is provided on the outer side of the rotating component 30 corresponding to the pin shaft 40, the slide groove 33 extends along the circumferential direction of the rotating component 30, and the depth of the slide groove 33 gradually deepens from one side of the slide groove 33 to the other side of the slide groove 33; the pin shaft 40 slides to the side of the shallow depth of the slide groove 33 as the rotating component 30 rotates, and the rotating component 30 pushes the pin shaft 40 outward to allow the pin shaft 40 to be inserted into the first through hole 11.

[0026] In this embodiment, the housing 10, the housing cover 20, the pin 40 and the rotating assembly 30 are all plastic parts. In other embodiments, the housing 10, the housing cover 20, the pin 40 and the rotating assembly 30 can also be all or partly made of hardware.

[0027] In this embodiment, the cross section of the housing 10 is square, and the first through holes 11 are provided on the four side walls of the housing 10. In other embodiments, the cross section of the housing 10 may be circular, triangular, rectangular, pentagonal, hexagonal or other shapes; or the first through holes 11 may be provided only on some side walls of the housing 10, without providing the first through holes 11 on every side wall.

[0028] One end of the pin 40 is connected to a limit block 41, and the side wall of the rotation installation cavity 23 is concave to form a limit block installation position 25, and the limit block installation position 25 is connected to the second through hole 24. In this embodiment, the side of the limit block 41 away from the pin 40 is a slope 42, and the slope 42 can be more closely matched with the surface of the slide groove 33, so as to better push the pin 40 outward; in other embodiments, the side of the limit block 41 away from the pin 40 can also be a curved surface, and the curvature of the curved surface matches the curvature of the surface of the slide groove 33, so that the curved surface can be closely matched with the surface of the slide groove 33, thereby better pushing the pin 40 outward.

[0029] Two first hooks 34 are provided on the bottom surface of the rotating component 30, and two first slot holes 26 are provided on the bottom surface of the rotating installation cavity 23. The first slot holes 26 are extended in the circumferential direction, and one end of the first slot hole 26 extends toward the center of the rotating installation cavity 23 to form a first insertion port 261 for the first hook 34 to be inserted. The first hook 34 is inserted into the corresponding first slot hole 26 through the first insertion port 261 and can slide along the first slot hole 26, thereby realizing the rotation of the rotating component 30.

[0030] Two second hooks 27 are provided on the bottom surface of the rotating mounting cavity 23, and two second slot holes 35 are provided on the bottom surface of the rotating component 30. The second slot holes 35 are extended in the circumferential direction, and one end of the second slot hole 35 extends and expands toward the center of the rotating component 30 to form a second insertion port 351 for the second hook 27 to be inserted. The second hook 27 is inserted into the corresponding second slot hole 35 through the second insertion port 351 and can slide along the second slot hole 35, thereby realizing the rotation of the rotating component 30.

[0031] The top surface of the rotating assembly 30 is provided with a straight groove 321, and the straight groove 321 can more conveniently rotate the rotating assembly 30. In this embodiment, the rotating assembly 30 includes a rotating shell 31 and a rotating top cover 32 that is covered and connected with the rotating shell 31, the sliding groove 33 is arranged on the outer side of the rotating shell 31, and the straight groove 321 is arranged on the top surface of the rotating top cover 32.

[0032] In this embodiment, the two first hooks 34 are arranged on the bottom surface of the rotating shell 31, and two first slot holes 26 are arranged on the bottom surface of the rotating installation cavity 23 to cooperate with the two first hooks 34 to realize the rotation of the rotating assembly 30; the two second hooks 27 are arranged on the bottom surface of the rotating installation cavity 23, and two second slot holes 35 are arranged on the bottom surface of the rotating shell 31 to cooperate with the two second hooks 27 to realize the rotation of the rotating assembly 30. In other embodiments, hooks can be arranged on the bottom surface of the rotating shell 31, and the number of hooks can be 2, 3, 4 or other numbers, and then the corresponding number of slot holes are arranged on the bottom surface of the rotating installation cavity 23 to cooperate with the corresponding hooks one by one to realize the rotation of the rotating assembly 30; hooks can also be arranged on the bottom surface of the rotating installation cavity 23, and the number of hooks can be 2, 3, 4 or other numbers, and then the corresponding number of slot holes are arranged on the bottom surface of the rotating shell 31 to cooperate with the corresponding hooks one by one to realize the rotation of the rotating assembly 30.

[0033] The bottom surface of the rotating top cover 32 is provided with at least two third hooks 321, the rotating shell 31 is provided with a top cover installation cavity 36, the side of the top cover installation cavity 36 is provided with a limiting step 38 and at least two cutout grooves 37, and a block 39 is provided above the cutout groove 37. The third hook 321 is inserted into the corresponding cutout groove 37 and the rotating top cover 32 is rotated so that the third hook 321 hooks the block 39 above the cutout groove 37, thereby achieving a fixed connection between the rotating shell 31 and the rotating top cover 32. In this embodiment, the number of the third hooks 321 and the cutout groove 37 is 4; in other embodiments, the number of the third hooks 321 can also be 2, 3 or other numbers, and the number of the cutout grooves 37 is consistent with the number of the third hooks 321.

[0034] The assembly process of the mortise and tenon structure assembly and fixing device of the utility model is as follows:

[0035] First, snap the shell cover 20 onto the shell body 10, and then rotate the rotating assembly 30. The pin shaft 40 slides to the shallow side of the slide groove 33 as the rotating assembly 30 rotates. The rotating assembly 30 pushes the pin shaft 40 outward to insert the pin shaft 40 into the first through hole 11. The pin shaft 40 cooperates with the first through hole 11 to achieve locking and fixing of the shell body 10 and the shell cover 20.

[0036] The mortise and tenon structure assembly and fixing device of the utility model does not need to use screws to lock and fix the shell and the shell cover. Only by rotating the rotating component, the pin shaft can be pushed outward to insert the pin shaft into the first through hole on the side wall of the shell. The shell and the shell cover are locked and fixed by matching the pin shaft with the first through hole, thereby quickly completing the combined assembly of the shell and the shell cover.

[0037] The above description is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments, and all equivalent changes or modifications made within the scope of the claims should fall within the protection scope of the utility model.

Claims

1. A mortise and tenon structure assembly and fixing device, characterized in that: Included are: A shell, a side wall of which is provided with a first through hole that passes through the inside and outside; A shell cover, comprising a shell cover body and a shell cover connecting portion, wherein the shell cover connecting portion is connected to the shell cover body and can be inserted into the housing, a rotation installation cavity is provided on the top of the shell cover body, a second through hole is provided on the outer side of the shell cover connecting portion corresponding to the first through hole, the second through hole is communicated with the rotation installation cavity, and a pin is installed in the second through hole; a rotating assembly, which is installed in the rotating installation cavity in a manner of being rotatable around the center of the rotating installation cavity, and a slide groove is provided on the outer side of the rotating assembly corresponding to the pin shaft, and the slide groove extends along the circumferential direction of the rotating assembly, and the depth of the slide groove gradually deepens from one side of the slide groove to the other side of the slide groove; The pin shaft slides to the side of the slide groove where the depth is shallow as the rotating assembly rotates, and the rotating assembly pushes the pin shaft outwards so that the pin shaft is inserted into the first through hole.

2. The mortise and tenon structure assembly and fixing device according to claim 1, characterized in that: One end of the pin shaft is connected to a limit block, and the side wall of the rotation installation cavity is concave to form a limit block installation position, and the limit block installation position is communicated with the second through hole.

3. The mortise and tenon structure assembly and fixing device according to claim 2, characterized in that: The side of the limit block away from the pin is an inclined surface or an arc surface.

4. The mortise and tenon structure assembly and fixing device according to claim 1, characterized in that: Two first hooks are provided on the bottom surface of the rotating component, and two first slot holes are provided on the bottom surface of the rotating mounting cavity. The first slot holes are extended in the circumferential direction, and one end of the first slot hole extends and expands toward the center of the rotating mounting cavity to form a first insertion port for the first hook to be inserted. The first hook is inserted into the corresponding first slot hole through the first insertion port and can slide along the first slot hole.

5. The mortise and tenon structure assembly and fixing device according to claim 4, characterized in that: Two second hooks are provided on the bottom surface of the rotating mounting cavity, and two second slot holes are provided on the bottom surface of the rotating component. The second slot holes are extended in the circumferential direction, and one end of the second slot hole extends and expands toward the center of the rotating component to form a second insertion port for the second hook to be inserted. The second hook is inserted into the corresponding second slot hole through the second insertion port and can slide along the second slot hole.

6. The mortise and tenon structure assembly and fixing device according to claim 1, characterized in that: The top surface of the rotating assembly is provided with a slot.

7. The mortise and tenon structure assembly and fixing device according to claim 6, characterized in that: The rotating assembly comprises a rotating shell and a rotating top cover which is covered and connected with the rotating shell. The sliding groove is arranged on the outer side of the rotating shell, and the straight groove is arranged on the top surface of the rotating top cover.

8. The mortise and tenon structure assembly and fixing device according to claim 7, characterized in that: The bottom surface of the rotating top cover is provided with at least two third hooks, the rotating shell is provided with a top cover mounting cavity, the side surface of the top cover mounting cavity is provided with a limiting step and at least two cutout grooves, a clamping block is provided above the cutout groove, and the third hook is inserted into the corresponding cutout groove and hooks the clamping block above the cutout groove.

9. The mortise and tenon structure assembly and fixing device according to any one of claims 1 to 8, characterized in that: The cross section of the shell is circular, triangular, square, rectangular, pentagonal or hexagonal.

10. The mortise and tenon structure assembly and fixing device according to any one of claims 1 to 8, characterized in that: The shell, shell cover, pin shaft and rotating assembly are all plastic parts.

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