Double-buckling-position plastic shell capable of preventing misloading connection

Abstract

The utility model relates to the technical field of plastic shells, in particular to a double-buckling-position plastic shell capable of preventing misloading connection, which comprises an upper shell and a lower shell, and the surface of the upper shell and the surface of the lower shell are provided with a first buckling assembly and a second buckling assembly; the first buckle assembly comprises a key, a sliding rod, a first spring, an insertion block, an insertion groove, a positioning groove and a positioning block. The sliding rod is connected to the interior of the lower shell in a sliding mode, the key is fixedly connected to one end of the sliding rod, the first spring is arranged on the outer wall of the sliding rod in a sleeving mode, and the first buckle assembly and the second buckle assembly enable the positioning groove and the positioning block in the clamped state to pre-connect the upper shell and the lower shell. One side of the upper shell and one side of the lower shell are installed in a butt joint mode through the insertion groove and the insertion block in the clamped state, the other side of the upper shell and the other side of the lower shell are installed in a butt joint mode through the sleeve frame and the two L-shaped rods in the clamped state, and therefore the effect of double buckling positions of the upper shell and the lower shell is achieved through the structure.

Description

A plastic housing with double-locking anti-misalignment connection Technical Field

[0001] This utility model relates to the field of plastic shell technology, specifically to a plastic shell with a double-locking anti-misalignment connection. Background Technology

[0002] Plastic housings are suitable for electronic devices, connectors, battery compartments, and other applications where incorrect installation is required. The materials used for plastic housings are typically engineering plastics such as ABS, PC, and nylon.

[0003] Existing plastic housings typically employ a symmetrical snap-fit ​​design, which may lead to users forcing installation due to incorrect orientation during assembly, causing damage to the housing or internal components. Furthermore, single-snap designs may result in insecure locking. Therefore, a double-snap design to prevent incorrect assembly is proposed for a plastic housing. Summary of the Invention

[0004] The purpose of this utility model is to provide a plastic shell with a double-locking anti-misalignment connection to solve the problem mentioned in the background art that existing plastic shells usually adopt a symmetrical buckle design, and that a single-locking design may not be securely locked. Therefore, a plastic shell with a double-locking anti-misalignment connection is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic shell with double-locking anti-misalignment connection, comprising an upper shell and a lower shell, wherein a first latching assembly and a second latching assembly are provided on the surfaces of the upper shell and the lower shell;

[0006] The first latching assembly includes a button, a slide bar, a first spring, a plug, a slot, a positioning groove, and a positioning block;

[0007] The slide rod is slidably connected to the inside of the lower housing, the button is fixedly connected to one end of the slide rod, the first spring is sleeved on the outer wall of the slide rod, the insert block is fixedly connected to the other end of the slide rod, the slot is opened on one side of the upper housing, the positioning groove is opened on the other side of the upper housing, and the positioning block is fixedly connected to the top of the lower housing.

[0008] Preferably, the two ends of the first spring are fixedly connected to the button and the lower housing, respectively, and the first spring in a retractable state is used to assist the insertion block in moving.

[0009] Preferably, the slot is used for inserting the plug into it, and the slot and the plug in the engaged state are used to mate and install the upper housing and the lower housing on one side.

[0010] Preferably, the positioning groove is used for the positioning block to be inserted into it, and the positioning groove and the positioning block in the engaged state are used to pre-connect the upper housing and the lower housing.

[0011] Preferably, the second buckle assembly includes a T-slot, a second spring, a T-block, a frame, a connecting rod, a third spring, an L-shaped rod, and a sleeve frame;

[0012] The T-slot is formed on the outside of the upper housing. The second spring is fixedly installed inside the T-slot. The T-block is slidably connected to the inside of the T-slot. The frame is fixedly connected to one side of the T-block. The connecting rod is fixedly connected to the inside of the frame. The L-shaped rod is slidably connected to the outer wall of the connecting rod. The third spring is sleeved on the outer wall of the connecting rod. The sleeve frame is fixedly connected to the outside of the lower housing.

[0013] Preferably, the T-shaped block is fixedly connected to the end of the second spring, and the retractable second spring is used to assist the two L-shaped rods in radial movement.

[0014] Preferably, the two ends of the third spring are fixedly connected to the two L-shaped rods respectively, and the telescopic third spring is used to assist the two L-shaped rods in axial movement.

[0015] Preferably, the sleeve frame is used to allow the frame and the two L-shaped rods to be inserted inside it, and the sleeve frame and the two L-shaped rods in the engaged state are used to mate and install the upper housing and the other side of the lower housing.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the first snap-fit ​​assembly and the second snap-fit ​​assembly enable the positioning groove and positioning block in the snap-fit ​​state to pre-connect the upper housing and the lower housing, the slot and insert in the snap-fit ​​state to mate and install one side of the upper housing and the lower housing, and the sleeve frame and two L-shaped rods in the snap-fit ​​state to mate and install the other side of the upper housing and the lower housing, thereby achieving the effect of double snap-fitting the upper housing and the lower housing through the above structure. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 is a schematic diagram of the structure of this utility model;

[0019] Figure 3 is a schematic diagram of the structure of this utility model;

[0020] Figure 4 is a schematic diagram of the structure of this utility model;

[0021] Figure 5 is a schematic diagram of the structure of this utility model.

[0022] In the diagram: 1. Upper housing; 2. Lower housing; 3. First snap-fit ​​assembly; 301. Button; 302. Slide rod; 303. First spring; 304. Insert block; 305. Slot; 306. Positioning groove; 307. Positioning block; 4. Second snap-fit ​​assembly; 401. T-slot; 402. Second spring; 403. T-block; 404. Frame; 405. Connecting rod; 406. Third spring; 407. L-shaped rod; 408. Sleeve frame. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5. This utility model provides a technical solution for a plastic shell with a double-locking anti-misassembly connection: a plastic shell with a double-locking anti-misassembly connection includes an upper shell 1 and a lower shell 2, and the surfaces of the upper shell 1 and the lower shell 2 are provided with a first latching component 3 and a second latching component 4;

[0025] The first latching assembly 3 includes a button 301, a slide bar 302, a first spring 303, an insert block 304, a slot 305, a positioning groove 306, and a positioning block 307;

[0026] The slide bar 302 is slidably connected to the inside of the lower housing 2, the button 301 is fixedly connected to one end of the slide bar 302, the first spring 303 is sleeved on the outer wall of the slide bar 302, the insert block 304 is fixedly connected to the other end of the slide bar 302, the slot 305 is opened on one side of the upper housing 1, the positioning groove 306 is opened on the other side of the upper housing 1, and the positioning block 307 is fixedly connected to the top of the lower housing 2.

[0027] Please refer to Figure 3. The two ends of the first spring 303 are fixedly connected to the button 301 and the lower housing 2 respectively, and the first spring 303 in the telescopic state is used to assist the insertion block 304 in moving.

[0028] In this embodiment: by pressing button 301 with a hand, button 301 causes slide bar 302 and insert block 304 to move, and squeezes first spring 303, so that first spring 303 is compressed.

[0029] Please refer to Figure 3 for details. The slot 305 is used for inserting the plug 304 into its interior, and the slot 305 and plug 304 in the engaged state are used to mate and install one side of the upper housing 1 and the lower housing 2.

[0030] In this embodiment: by loosening the button 301 by hand, the first spring 303 in the reset state drives the insert block 304 to insert into the slot 305. Then, the slot 305 and the insert block 304 in the engaged state mate and install one side of the upper housing 1 and the lower housing 2.

[0031] Please refer to Figure 4 for details. The positioning groove 306 is used for the positioning block 307 to be inserted into it, and the positioning groove 306 and the positioning block 307 in the engaged state are used to pre-connect the upper housing 1 and the lower housing 2.

[0032] In this embodiment: the upper housing 1 is placed on the lower housing 2, and the positioning block 307 is inserted into the positioning groove 306. The positioning groove 306 and the positioning block 307 in the engaged state pre-connect the upper housing 1 and the lower housing 2.

[0033] Please refer to Figure 2 for details. The second buckle assembly 4 includes a T-slot 401, a second spring 402, a T-block 403, a frame 404, a connecting rod 405, a third spring 406, an L-shaped rod 407, and a sleeve 408.

[0034] T-slot 401 is formed on the outside of the upper housing 1. The second spring 402 is fixedly installed inside the T-slot 401. T-block 403 is slidably connected to the inside of the T-slot 401. Frame 404 is fixedly connected to one side of T-block 403. Connecting rod 405 is fixedly connected to the inside of frame 404. L-shaped rod 407 is slidably connected to the outer wall of connecting rod 405. Third spring 406 is sleeved on the outer wall of connecting rod 405. Sleeve frame 408 is fixedly connected to the outside of the lower housing 2.

[0035] In this embodiment: by pressing the two L-shaped rods 407 again, the two L-shaped rods 407 move axially closer to each other along the outer wall trajectory of the connecting rod 405, and squeeze the third spring 406, causing the third spring 406 to be compressed. Then, the frame 404 and the two L-shaped rods 407 move downward, causing the frame 404 to drive the T-shaped block 403 to move downward along the trajectory of the T-shaped groove 401, and stretch the second spring 402. The frame 404 and the two L-shaped rods 407 in the downward moving state are inserted into the sleeve frame 408. Then, by releasing the two L-shaped rods 407 again, the third spring 406 in the reset state drives the two L-shaped rods 407 to move axially away from each other. The two L-shaped rods 407 in the away-away state then engage with the sleeve frame 408. The sleeve frame 408 in the engaged state and the two L-shaped rods 407 connect and install the other side of the upper shell 1 and the lower shell 2.

[0036] Please refer to Figure 2 for details. The T-block 403 is fixedly connected to the end of the second spring 402, and the retractable second spring 402 is used to assist the two L-shaped rods 407 in radial movement.

[0037] In this embodiment: the frame 404 drives the T-block 403 to move downward along the trajectory of the T-slot 401, and stretches the second spring 402.

[0038] Please refer to Figure 2. The two ends of the third spring 406 are fixedly connected to the two L-shaped rods 407 respectively, and the retractable third spring 406 is used to assist the two L-shaped rods 407 in axial movement.

[0039] In this embodiment: the two L-shaped rods 407 are moved axially closer to each other along the outer wall trajectory of the connecting rod 405, and the third spring 406 is compressed.

[0040] Please refer to Figure 2. The sleeve 408 is used to insert the frame 404 and the two L-shaped rods 407 into it. The sleeve 408 and the two L-shaped rods 407 in the engaged state are used to connect and install the other side of the upper housing 1 and the lower housing 2.

[0041] In this embodiment: the third spring 406 in the reset state drives the two L-shaped rods 407 to move axially away from each other. The two L-shaped rods 407 in the away state then engage with the sleeve frame 408. The sleeve frame 408 in the engaged state and the two L-shaped rods 407 connect and install the other side of the upper housing 1 and the lower housing 2.

[0042] Working principle: First, press button 301 to move slide bar 302 and insert block 304, and compress first spring 303. Then, place upper housing 1 on lower housing 2 and insert positioning block 307 into positioning groove 306. Positioning groove 306 and positioning block 307 in the engaged state pre-connect upper housing 1 and lower housing 2. At this time, release button 301 to reset first spring 303 and insert block 304 into slot 305. Slot 305 and insert block 304 in the engaged state then mate and install one side of upper housing 1 and lower housing 2.

[0043] The hand then presses the two L-shaped rods 407, causing them to move axially closer together along the outer wall trajectory of the connecting rod 405, and compressing the third spring 406. This compresses the third spring 406, then moves the frame 404 and the two L-shaped rods 407 downwards, causing the frame 404 to drive the T-shaped block 403 downwards along the trajectory of the T-shaped groove 401, and stretching the second spring 402. The downward-moving frame 404 and the two L-shaped rods 407 are inserted into the sleeve frame 408. The hand then releases the two L-shaped rods 407, causing the reset third spring 406 to drive the two L-shaped rods 407 axially away from each other. The two L-shaped rods 407 then engage with the sleeve frame 408. The engaged sleeve frame 408 and the two L-shaped rods 407 connect and install the other side of the upper housing 1 and the lower housing 2, thus achieving the effect of double-locking the upper housing 1 and the lower housing 2 through the above structure.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic housing with double-locking anti-misalignment connection, comprising an upper housing (1) and a lower housing (2), characterized in that: The surfaces of the upper housing (1) and the lower housing (2) are provided with a first snap-fit ​​assembly (3) and a second snap-fit ​​assembly (4); the first snap-fit ​​assembly (3) includes a button (301), a slide rod (302), a first spring (303), an insert (304), a slot (305), a positioning groove (306), and a positioning block (307); the slide rod (302) is slidably connected to the inside of the lower housing (2), the button (301) is fixedly connected to one end of the slide rod (302), the first spring (303) is sleeved on the outer wall of the slide rod (302), the insert (304) is fixedly connected to the other end of the slide rod (302), the slot (305) is opened on one side of the upper housing (1), the positioning groove (306) is opened on the other side of the upper housing (1), and the positioning block (307) is fixedly connected to the top of the lower housing (2).

2. The plastic housing with double-locking anti-misassembly connection according to claim 1, characterized in that: The two ends of the first spring (303) are fixedly connected to the button (301) and the lower housing (2) respectively, and the first spring (303) in the telescopic state is used to assist the insertion block (304) in moving.

3. The plastic housing with double-locking anti-misassembly connection according to claim 1, characterized in that: The slot (305) is used for inserting the plug (304) into it, and the slot (305) and the plug (304) in the engaged state are used to mate and install one side of the upper housing (1) and the lower housing (2).

4. The plastic housing with double-locking anti-misassembly connection according to claim 1, characterized in that: The positioning groove (306) is used for the positioning block (307) to be inserted into it, and the positioning groove (306) and the positioning block (307) in the engaged state are used to pre-connect the upper housing (1) and the lower housing (2).

5. The plastic housing with double-locking anti-misassembly connection according to claim 1, characterized in that: The second buckle assembly (4) includes a T-slot (401), a second spring (402), a T-block (403), a frame (404), a connecting rod (405), a third spring (406), an L-shaped rod (407), and a sleeve (408). The T-slot (401) is opened on the outside of the upper housing (1). The second spring (402) is fixedly installed inside the T-slot (401). The T-block (403) is slidably connected to the inside of the T-slot (401). The frame (404) is fixedly connected to one side of the T-block (403). The connecting rod (405) is fixedly connected to the inside of the frame (404). The L-shaped rod (407) is slidably connected to the outer wall of the connecting rod (405). The third spring (406) is sleeved on the outer wall of the connecting rod (405). The sleeve (408) is fixedly connected to the outside of the lower housing (2).

6. The plastic housing with double-locking anti-misassembly connection according to claim 5, characterized in that: The T-shaped block (403) is fixedly connected to the end of the second spring (402), and the second spring (402) in a telescopic state is used to assist the two L-shaped rods (407) in radial movement.

7. The plastic housing with double-locking anti-misalignment connection according to claim 5, characterized in that: The two ends of the third spring (406) are fixedly connected to the two L-shaped rods (407) respectively, and the retractable third spring (406) is used to assist the two L-shaped rods (407) in axial movement.

8. The plastic housing with double-locking anti-misalignment connection according to claim 5, characterized in that: The sleeve (408) is used for inserting the frame (404) and the two L-shaped rods (407) into its interior, and the sleeve (408) and the two L-shaped rods (407) in the engaged state are used to connect and install the upper housing (1) and the other side of the lower housing (2).

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