Current-limiting protector shell convenient to disassemble

Abstract

The utility model discloses a current-limiting protector shell convenient to disassemble, which comprises a rear shell and a front shell, the lower surface of the rear shell is fixedly connected with a connecting seat, the inner surface of the connecting seat is in sliding connection with a sliding block, the outer side wall of the sliding block is fixedly connected with a connecting rod, the inner side wall of the sliding block is fixedly connected with a rack, and the rack is fixedly connected with the connecting seat. The connecting block is connected through the lock catch structure and the connecting rod, meanwhile, the rotating shaft can be rotated to drive the sliding block to move so that the connecting rod can be separated from the connecting block, complete separation of the two shells is achieved, operation is convenient, and complete opening or partial opening can be selected according to different requirements; and by arranging a first spring, a guide plate, a sleeve and other structures, the sleeve and the rotating shaft can be conveniently separated when the rotating shaft does not need to be adjusted, the situation that connection between the connecting rod and the connecting block is loosened due to mistaken touch is avoided, and the stability and safety of connection are improved.

Description

Technical Field

[0001] This utility model relates to the field of current limiting protector technology, and in particular to a current limiting protector housing that is easy to disassemble. Background Technology

[0002] A current limiter is an electrical device with overcurrent protection function. It detects the current signal in the circuit and compares it with a preset protection threshold. When the current exceeds the threshold, the protection mechanism is triggered. It can quickly act when an abnormal overcurrent occurs in the circuit, limit the current or cut off the circuit to protect electrical equipment, lines and personnel safety. It is widely used in power, electronics, home appliances, industrial control and other fields.

[0003] After searching, it was found that the utility model application with application number CN202420839236.3 provides a disassembly-friendly current limiting protector housing. It uses a locking mechanism to install two housings, which makes it easy to quickly install and disassemble the current limiting protector housing and facilitates later maintenance and replacement. However, it requires both locking mechanisms to be unlocked at the same time to separate the two housings. This is not only inconvenient to operate and inefficient, but also requires the two housings to be completely separated before inspection and maintenance can be carried out. This can easily cause the housings to fall off after separation, creating a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a current limiting protector housing that is easy to disassemble, convenient to operate, and can be fully or partially opened, thereby improving work efficiency and facilitating maintenance.

[0005] To achieve the above objectives, a disassembleable current limiting protector housing is provided, comprising: a rear housing and a front housing, a connecting seat fixedly connected to the lower surface of the rear housing, a slider slidably connected to the inner surface of the connecting seat, a connecting rod fixedly connected to the outer side wall of the slider, a rack fixedly connected to the inner side wall of the slider, a gear meshing with the inner side wall of the rack, a rotating shaft rotatably connected to the inner surface of the gear, and a limit groove provided on the lower outer surface of the rotating shaft;

[0006] An adjustment box is fixedly connected to the lower surface of the connecting seat. A first spring is fixedly connected to the upper inner wall of the adjustment box. A guide plate is fixedly connected to the lower end of the first spring. A sleeve is rotatably connected to the inner surface of the guide plate. A connecting rod is fixedly connected to the lower surface of the sleeve. A turntable is fixedly connected to the lower end of the connecting rod. A limit block is provided on the inner surface of the sleeve. A connecting block is fixedly connected to the lower surface of the front shell. The rear shell is connected to the upper part of the front shell through a locking mechanism.

[0007] According to the aforementioned easily detachable current limiting protector housing, the locking mechanism includes a fixing block, a second spring, a locking block, a fixing seat, a third spring, a pressing block, a push rod, and a lower pressure plate. The lower inner wall of the fixing block is fixedly connected to the second spring, the upper end of the second spring is fixedly connected to the locking block, the upper surface of the fixing seat is fixedly connected to the third spring, the upper end of the third spring is fixedly connected to the pressing block, the lower surface of the pressing block is fixedly connected to the push rod, and the lower surface of the push rod is fixedly connected to the lower pressure plate. This facilitates the connection between the fixing block and the fixing seat, and makes it convenient for the installation and removal of the rear and front housings.

[0008] According to the aforementioned easily detachable current limiting protector housing, the lower surface of the fixing base is fixedly connected to the rear shell, the lower surface of the fixing block is fixedly connected to the front shell, the outer surface of the fixing block slides against the fixing base, the outer surface of the locking block engages with the fixing base, and the outer surface of the locking block slides against the fixing block.

[0009] According to the aforementioned easily detachable current limiting protector housing, the outer surface of the push rod is slidably connected to the fixed base, and the outer surface of the lower pressure plate is slidably connected to the fixed base, so that the movement of the push rod can drive the lower pressure plate to move and push the locking block out of the fixed base to cancel the fixing of the fixed block.

[0010] According to the aforementioned easily detachable current limiting protector housing, a fourth spring is fixedly connected to the rear inner wall of the fixing base, and a push plate is fixedly connected to the front end of the fourth spring. The outer surface of the push plate is slidably connected to the fixing base, so that the fixing block can be automatically separated from the fixing base after the fixing of the fixing block is removed.

[0011] According to the aforementioned easily detachable current limiting protector housing, the outer surface of the rear housing is fixedly connected with mounting feet, the number of mounting feet being four and arranged in a rectangular array, facilitating the installation of the device.

[0012] According to the aforementioned easily detachable current limiting protector housing, the outer surface of the connecting rod engages with the connecting block, and the outer surface of the rotating shaft is rotatably connected to the connecting seat.

[0013] According to the aforementioned easily detachable current limiting protector housing, the outer surface of the connecting rod is slidably connected to the regulating box, and the outer surface of the guide plate is slidably connected to the regulating box.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] The connecting block is connected by a locking structure and a connecting rod. At the same time, the connecting rod can be separated from the connecting block by rotating the shaft and moving the slider. This achieves complete separation of the two outer shells. It is not only easy to operate, but also allows for full opening or partial opening according to different needs, improving work efficiency and applicability of the device.

[0016] The design of the first spring, guide plate, and sleeve facilitates the separation of the sleeve from the shaft when no adjustment is needed, preventing accidental contact that could loosen the connection between the connecting rod and the connecting block, thus improving the stability and safety of the connection.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is an overall structural diagram of the housing of a current limiting protector that is easy to disassemble according to this utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of the housing of a current limiting protector that is easy to disassemble according to this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 This is a partial structural cross-sectional view of the housing of a current limiting protector that is easy to disassemble according to this utility model.

[0024] Legend:

[0025] 1. Rear shell; 2. Front shell; 3. Connecting seat; 4. Slider; 5. Connecting rod; 6. Rack; 7. Gear; 8. Rotating shaft; 9. Limiting groove; 10. Adjusting box; 11. First spring; 12. Guide plate; 13. Sleeve; 14. Connecting rod; 15. Turntable; 16. Limiting block; 17. Connecting block; 18. Fixing block; 19. Second spring; 20. Locking block; 21. Fixing seat; 22. Third spring; 23. Pressing block; 24. Push rod; 25. Lower pressure plate; 26. Fourth spring; 27. Push plate; 28. Mounting foot. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-5 This utility model provides a detachable current limiting protector housing, comprising: a rear shell 1 and a front shell 2. The outer surface of the rear shell 1 is fixedly connected with four mounting feet 28 arranged in a rectangular array. The lower surface of the rear shell 1 is fixedly connected with a connecting seat 3. The inner surface of the connecting seat 3 is slidably connected with a slider 4. The outer side wall of the slider 4 is fixedly connected with a connecting rod 5. The inner side wall of the slider 4 is fixedly connected with a rack 6. The inner side wall of the rack 6 is meshed with a gear 7. The inner surface of the gear 7 is rotatably connected with a rotating shaft 8. The outer surface of the rotating shaft 8 is rotatably connected to the connecting seat 3. A limit groove 9 is provided on the lower outer surface of the rotating shaft 8.

[0028] An adjustment box 10 is fixedly connected to the lower surface of the connecting seat 3. A first spring 11 is fixedly connected to the upper inner wall of the adjustment box 10. A guide plate 12 is fixedly connected to the lower end of the first spring 11, which facilitates the movement of the guide plate 12 to separate the sleeve 13 from the rotating shaft 8, preventing accidental contact that could cause the rotating shaft 8 to rotate and loosen the connection between the connecting rod 5 and the connecting block 17. The outer surface of the guide plate 12 is slidably connected to the adjustment box 10. The inner surface of the guide plate 12 is rotatably connected to the sleeve 13. A connecting rod 14 is fixedly connected to the lower surface of the sleeve 13. The outer surface of the connecting rod 14 is slidably connected to the adjustment box 10. A turntable 15 is fixedly connected to the lower end of the connecting rod 14. A limit block 16 is provided on the inner surface of the sleeve 13. A connecting block 17 is fixedly connected to the lower surface of the front shell 2. The outer surface of the connecting rod 5 engages with the connecting block 17. The upper part of the rear shell 1 and the front shell 2 are connected by a locking mechanism.

[0029] The locking mechanism includes a fixed block 18, a second spring 19, a locking block 20, a fixed base 21, a third spring 22, a pressing block 23, a push rod 24, and a lower pressure plate 25. The lower inner wall of the fixed block 18 is fixedly connected to the second spring 19, the upper end of the second spring 19 is fixedly connected to the locking block 20, the upper surface of the fixed base 21 is fixedly connected to the third spring 22, the upper end of the third spring 22 is fixedly connected to the pressing block 23, the lower surface of the pressing block 23 is fixedly connected to the push rod 24, the lower surface of the push rod 24 is fixedly connected to the lower pressure plate 25, and the outer surface of the push rod 24 is fixedly connected to the lower pressure plate 25. The lower pressure plate 25 is slidably connected to the fixed base 21. The outer surface of the lower pressure plate 25 is slidably connected to the fixed base 21. The lower surface of the fixed base 21 is fixedly connected to the rear shell 1. The lower surface of the fixed block 18 is fixedly connected to the front shell 2. The outer surface of the fixed block 18 slides with the fixed base 21. The outer surface of the locking block 20 engages with the fixed base 21. The outer surface of the locking block 20 is slidably connected to the fixed block 18. A fourth spring 26 is fixedly connected to the rear inner wall of the fixed base 21. A push plate 27 is fixedly connected to the front end of the fourth spring 26. The outer surface of the push plate 27 is slidably connected to the fixed base 21.

[0030] Working principle: When partial opening is required, pressing the pressing block 23 moves the lower pressure plate 25 via the push rod 24, pushing the locking block 20 out of the fixed seat 21, thereby releasing the fixation of the fixed block 18. Under the action of the fourth spring 26, the push plate 27 moves, popping the fixed block 18 out of the fixed seat 21, thus separating the top of the rear shell 1 from the front shell 2. The front shell 2 can then be rotated around the connecting rod 5 to open the device. When complete separation is required, pressing the turntable 15 moves the sleeve 13 via the limiting block 16, fitting the sleeve 13 onto the outer surface of the rotating shaft 8, causing the limiting block 16 to engage with the limiting groove 9. Then, rotating the turntable 15 drives the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 drives the gear 7 to rotate. Through the meshing connection between the gear 7 and the rack 6, the slider 4 moves inward, which in turn moves the connecting rod 5 to separate from the connecting block 17, releasing the fixation of the connecting block 17, thus allowing the device to be fully opened.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A removable housing for a current limiting protector, comprising: The rear shell (1) and the front shell (2) are characterized in that a connecting seat (3) is fixedly connected to the lower surface of the rear shell (1), a slider (4) is slidably connected to the inner surface of the connecting seat (3), a connecting rod (5) is fixedly connected to the outer side wall of the slider (4), a rack (6) is fixedly connected to the inner side wall of the slider (4), a gear (7) is meshed with the inner side wall of the rack (6), a rotating shaft (8) is rotatably connected to the inner surface of the gear (7), and a limit groove (9) is provided on the lower outer surface of the rotating shaft (8). An adjustment box (10) is fixedly connected to the lower surface of the connecting seat (3). A first spring (11) is fixedly connected to the upper inner wall of the adjustment box (10). A guide plate (12) is fixedly connected to the lower end of the first spring (11). A sleeve (13) is rotatably connected to the inner surface of the guide plate (12). A connecting rod (14) is fixedly connected to the lower surface of the sleeve (13). A turntable (15) is fixedly connected to the lower end of the connecting rod (14). A limit block (16) is provided on the inner surface of the sleeve (13). A connecting block (17) is fixedly connected to the lower surface of the front shell (2). The rear shell (1) is connected to the upper part of the front shell (2) through a locking mechanism.

2. The easily disassembled current limiting protector housing according to claim 1, characterized in that, The locking mechanism includes a fixed block (18), a second spring (19), a locking block (20), a fixed seat (21), a third spring (22), a pressing block (23), a push rod (24), and a lower pressure plate (25). The lower inner wall of the fixed block (18) is fixedly connected to the second spring (19), the upper end of the second spring (19) is fixedly connected to the locking block (20), the upper surface of the fixed seat (21) is fixedly connected to the third spring (22), the upper end of the third spring (22) is fixedly connected to the pressing block (23), the lower surface of the pressing block (23) is fixedly connected to the push rod (24), and the lower surface of the push rod (24) is fixedly connected to the lower pressure plate (25).

3. The easily detachable current limiting protector housing according to claim 2, characterized in that, The lower surface of the fixing seat (21) is fixedly connected to the rear shell (1), the lower surface of the fixing block (18) is fixedly connected to the front shell (2), the outer surface of the fixing block (18) slides against the fixing seat (21), the outer surface of the locking block (20) engages with the fixing seat (21), and the outer surface of the locking block (20) slides against the fixing block (18).

4. The easily detachable current limiting protector housing according to claim 2, characterized in that, The outer surface of the push rod (24) is slidably connected to the fixed seat (21), and the outer surface of the lower pressure plate (25) is slidably connected to the fixed seat (21).

5. The easily removable housing of a current limiting protector according to claim 2, characterized in that, A fourth spring (26) is fixedly connected to the rear inner wall of the fixed base (21), and a push plate (27) is fixedly connected to the front end of the fourth spring (26). The outer surface of the push plate (27) is slidably connected to the fixed base (21).

6. The easily removable current limiting protector housing according to claim 1, characterized in that, The outer surface of the rear shell (1) is fixedly connected with mounting feet (28), and the number of mounting feet (28) is four and arranged in a rectangular array.

7. The easily removable current limiting protector housing according to claim 1, characterized in that, The outer surface of the connecting rod (5) engages with the connecting block (17), and the outer surface of the rotating shaft (8) is rotatably connected to the connecting seat (3).

8. The easily removable housing of a current limiting protector according to claim 1, characterized in that, The outer surface of the connecting rod (14) is slidably connected to the regulating box (10), and the outer surface of the guide plate (12) is slidably connected to the regulating box (10).

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