Safety plug capable of preventing pulling

Abstract

The utility model discloses a safety plug capable of preventing pulling. The safety plug comprises a first installation shell used for installation and a plug pin stably installed at the upper end of the first installation shell. A clamping mechanism is arranged on the plug pin, the clamping mechanism comprises a first spring, clamping blocks, clamping grooves and arc-shaped blocks, the first spring is arranged on the outer side of the lower end of the plug pin, the clamping blocks are arranged on the left side and the right side of the plug pin, the clamping grooves are formed in the lower ends of the clamping blocks, and the arc-shaped blocks are connected to the left sides of the clamping blocks; the protective device comprises a threaded rod, a protective mechanism is arranged at the upper end of the threaded rod and comprises a connecting ring and a protective shell, the connecting ring and the protective shell are arranged on the threaded rod, and the protective shell is located at the upper end of the connecting ring. According to the anti-pulling safety plug, the angle of the plug pin on the safety plug can be conveniently adjusted, the safety plug is suitable for different sockets, the joint of the safety plug can be conveniently protected, and an electric wire on the safety plug can be conveniently subjected to anti-pulling treatment.

Description

Technical Field

[0001] This utility model relates to the field of safety plug technology, specifically a safety plug designed to prevent pulling. Background Technology

[0002] Plugs are mainly used for charging electronic products. With the continuous occurrence of safety hazards, the market has begun to produce safety plugs. However, existing safety plugs do not have a pull-proof mechanism, which causes the bottom connecting wires of some plugs to loosen and fall off, resulting in poor contact and other problems that affect the efficiency of electronic products. At the same time, the structure of safety plugs is relatively simple and cannot adjust the position of the plug connection according to the socket slots in different situations. Therefore, a safety plug that prevents pulling has been designed to address the above problems.

[0003] A safety plug designed to prevent pulling, as disclosed in authorization announcement CN112072395B, includes a housing. A segmented plate is connected to the outer wall of the housing via a compression spring. A connecting band is fixed to the segmented plate and the housing together. Two insertion rods are fixedly connected through the side wall of the segmented plate. Both insertion rods penetrate the side wall of the housing and extend into the housing. Both insertion rods are slidably connected to the housing. A groove is formed on the side wall of both housings, and a connecting rod is connected to the inner wall of each groove via a return spring. The advantage of this invention is that by filling the reservoir with electrorheological fluid, the fluid solidifies and expands upon energization. This causes the limiting band to deform outwards under the influence of the fluid, forming a limiting rod extending from the insertion rod with the solidified fluid. This effectively restricts the movement of the insertion rod, preventing it from being pulled directly out of the socket, thus ensuring stability during the connection process.

[0004] Based on existing solutions and actual production and processing, current safety plugs still have some problems: it is not convenient to adjust the angle of the pins on the safety plug to suit different sockets, it is not convenient to protect the connection of the safety plug, and it is not convenient to prevent the wires on the safety plug from being pulled. Therefore, this utility model provides a safety plug that prevents pulling to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a safety plug that prevents pulling, so as to solve the problems mentioned in the background art that it is inconvenient to adjust the angle of the pin on the safety plug to suit different sockets, inconvenient to protect the connection of the safety plug, and inconvenient to prevent the wires on the safety plug from being pulled.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a safety plug to prevent pulling, comprising: a first mounting shell for installation, and a pin stably installed on the upper end of the first mounting shell;

[0007] It also includes: the pin is provided with a locking mechanism, wherein the locking mechanism includes a first spring, a locking block, a locking groove and an arc-shaped block, the lower outer side of the pin is provided with a first spring, the left and right sides of the pin are provided with locking blocks, the lower end of the locking block is provided with a locking groove, and the left side of the locking block is connected to an arc-shaped block;

[0008] A threaded rod, wherein a protective mechanism is provided at the upper end of the threaded rod, the protective mechanism including a connecting ring and a protective shell, the connecting ring and the protective shell being provided on the upper end of the threaded rod, and the protective shell being located at the upper end of the connecting ring;

[0009] The clamping arm is equipped with an anti-pull mechanism, which includes an adjusting ring and a third spring. The adjusting ring is connected to the left side of the clamping arm, and the third spring is provided on the outer side of the middle part of the clamping arm.

[0010] Preferably, the pins are symmetrically arranged about the center line of the first mounting housing, and the lower outer side of the pins is in contact with the first spring, and the lower end of the first spring is connected to an electric wire.

[0011] Preferably, the interior of the card slot is connected to the card block by a snap-fit ​​mechanism, and the left side of the card block is provided with an arc groove, which is connected to the arc block by a snap-fit ​​mechanism. Furthermore, a second spring is provided on the left side of the arc block.

[0012] Preferably, the left and right sides of the first mounting shell are provided with threaded rods, and the outer side of the threaded rods is connected to the connecting ring by a thread, and the protective shell forms a sliding structure on the outer side of the threaded rods.

[0013] Preferably, the clamping arms are symmetrically arranged about the center line of the first mounting shell, and the outer sides of the left and right ends of the clamping arms are connected to the adjusting ring by means of threads, and the middle part of the clamping arms is set in a close fit with the third spring.

[0014] Preferably, a second mounting shell is mounted on the front end of the first mounting shell, and a connector is provided at the lower end of the second mounting shell, and the interior of the connector is connected to the first mounting shell and the wire.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the anti-pull safety plug is easy to adjust the angle of the pin on the safety plug, is suitable for different sockets, is easy to protect the connection of the safety plug, and is easy to prevent the wire on the safety plug from being pulled.

[0016] 1. It is equipped with a first spring, a second spring and an arc-shaped block. Since the socket positions are different in some places, the position of the safety plug pin also needs to be adjusted. Lift the pin upwards, squeeze the first spring to retract, so that the pin drives the locking block to disengage from the locking slot. Then rotate the pin to drive the locking block at the other end to insert into the locking slot. After the locking block enters the locking slot, the arc-shaped block is locked in the groove in the middle of the locking block by the elastic force of the second spring, and finally fixes the pin in position, which makes it easy to adjust the angle of the pin on the safety plug to suit different sockets.

[0017] 2. It is equipped with a threaded rod, a connecting ring, and a protective shell. When the safety plug needs to be protected and the plug is no longer usable, rotate the connecting ring connected to the threaded rod to move the connecting ring upward along the threaded path on the threaded rod, so that the protective shell slides upward. Finally, the protective shell protects the outside of the pin, which facilitates the protection of the safety plug connection.

[0018] 3. Equipped with clamping arms, adjusting rings, and connectors, when it is necessary to prevent the wire at the safety plug connection from being pulled off, place the wire inside the lower end of the first mounting shell, and then rotate the adjusting rings to cause the adjusting rings to drive the clamping arms to compress the third spring. Finally, the clamping arms will fit tightly against the left and right sides of the wire, fixing it in position. Then, install the second mounting shell on the front side of the first mounting shell with bolts. The bottom wire needs to be fitted with a connector. Rotate the connector upwards, and the inside of the connector will connect with the first and second mounting shells, providing secondary protection for the wire and preventing it from loosening due to pulling. This facilitates the anti-pull treatment of the wire on the safety plug. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a side view sectional structural diagram of the present invention;

[0021] Figure 3 This is a top view sectional structural diagram of the present invention;

[0022] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This utility model Figure 1 Enlarged structural diagram at point B.

[0024] In the diagram: 1. First mounting shell; 2. Pin; 3. First spring; 4. Wire; 5. Locking block; 6. Locking groove; 7. Arc-shaped block; 8. Second spring; 9. Threaded rod; 10. Connecting ring; 11. Protective shell; 12. Clamping arm; 13. Adjusting ring; 14. Third spring; 15. Second mounting shell; 16. Connector. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a safety plug to prevent pulling, including a first mounting shell 1, a pin 2, a first spring 3, a wire 4, a locking block 5, a locking groove 6, an arc-shaped block 7, a second spring 8, a threaded rod 9, a connecting ring 10, a protective shell 11, a clamping arm 12, an adjusting ring 13, a third spring 14, a second mounting shell 15, and a connector 16.

[0027] When adjusting and protecting the safety plug, for example, attaching... Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4As shown, the pin 2 is symmetrically arranged about the center line of the first mounting shell 1. The lower outer side of the pin 2 is in contact with the first spring 3. The lower end of the first spring 3 is connected to the wire 4. The inside of the slot 6 is connected to the slot block 5 by a snap-fit ​​method. The left side of the slot block 5 is provided with an arc groove, which is connected to the arc block 7 by a snap-fit ​​method. The left side of the arc block 7 is provided with a second spring 8. The left and right sides of the first mounting shell 1 are provided with threaded rods 9. The outer side of the threaded rods 9 is connected to the connecting ring 10 by a thread. The protective shell 11 forms a sliding structure on the outer side of the threaded rods 9. When the safety plug needs to be used, the outer protective device needs to be adjusted downward first. Then, the connecting ring 10 connected to the outer side of the threaded rod 9 is rotated so that the connecting ring 10 moves downward along the threaded path on the outer side of the threaded rod 9. When the connecting ring 10 moves, it no longer limits the protective shell 11. The protective shell 11 detaches from the protection of the outside of the plug 2. After the connecting ring 10 moves to the appropriate position, it stops rotating and adjusting. At this time, the angle of the plug 2 on the first mounting shell 1 is adjusted according to the position of the socket hole to adapt to different types of sockets. The plug 2 is pulled upward, and the first spring 3 is compressed and contracted, so that the plug 2 drives the locking block 5 to disengage from the inside of the slot 6. The angle of the plug 2 is then slightly rotated. When the plug 2 is adjusted to the appropriate position, the plug 2 is released. The first spring 3 drives the plug 2 to engage the locking block 5 into the inside of the slot 6 through its elastic force. After the locking block 5 enters the inside of the slot 6, in order to prevent loosening, the groove inside the locking block 5 engages with the arc-shaped block 7. The arc-shaped block 7 is tightly engaged in the groove through the elastic force of the second spring 8. Finally, the plug 2 is limited to prevent loosening when the plug is connected to the socket. This is the way the safety plug is adjusted and protected.

[0028] When using a safety plug that prevents pulling, for example, with... Figure 1 Appendix Figure 2 and attached Figure 5As shown, the clamping arms 12 are symmetrically arranged about the center line of the first mounting shell 1. The outer sides of the left and right ends of the clamping arms 12 are connected to the adjusting ring 13 by threads. The middle part of the clamping arms 12 is fitted with the third spring 14. The front end of the first mounting shell 1 is fitted with a second mounting shell 15. The lower end of the second mounting shell 15 is provided with a connector 16. The interior of the connector 16 is connected to the first mounting shell 1 and the wire 4. When it is necessary to prevent the wire 4 at the connection of the safety plug from being pulled off, the wire 4 must first be placed inside the lower end of the first mounting shell 1. The upper end of the wire 4 is connected to the plug. Pin 2 is connected, and then the adjusting ring 13 is rotated to make the adjusting ring 13 drive the clamping arm 12 to squeeze the third spring 14. Finally, the left and right ends of the clamping arm 12 are tightly attached to the left and right sides of the wire 4 to fix its position. In order to prevent loosening, the second mounting shell 15 is installed on the front side of the first mounting shell 1 with bolts. The bottom wire 4 needs to be fitted with a connector 16. The connector 16 is rotated upward, and the inside of the connector 16 is threadedly connected to the first mounting shell 1 and the second mounting shell 15 to provide secondary protection for the wire 4 and prevent it from being pulled loose, thereby achieving the anti-pulling treatment of the safety plug.

[0029] This is the entire working process of the safety plug that prevents pulling. Any content not described in detail in this manual is prior art known to those skilled in the art.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A safety plug to prevent pull-out, comprising: A first mounting housing (1) for installation, and a pin (2) stably installed on the upper end of the first mounting housing (1); Its characteristic is that it further includes: The pin (2) is provided with a locking mechanism, which includes a first spring (3), a locking block (5), a locking groove (6) and an arc block (7). The lower outer side of the pin (2) is provided with a first spring (3), and the left and right sides of the pin (2) are provided with locking blocks (5). The lower end of the locking block (5) is provided with a locking groove (6), and the left side of the locking block (5) is connected to the arc block (7). A threaded rod (9) is provided with a protective mechanism at its upper end. The protective mechanism includes a connecting ring (10) and a protective shell (11). The threaded rod (9) is provided with a connecting ring (10) and a protective shell (11), and the protective shell (11) is located at the upper end of the connecting ring (10). The clamping arm (12) is provided with an anti-pull mechanism, which includes an adjusting ring (13) and a third spring (14). The adjusting ring (13) is connected to the left side of the clamping arm (12), and the third spring (14) is provided on the outer side of the middle part of the clamping arm (12).

2. The safety plug for preventing pulling according to claim 1, characterized in that: The pin (2) is symmetrically arranged about the center line of the first mounting shell (1), and the lower outer side of the pin (2) is in contact with the first spring (3), and the lower end of the first spring (3) is connected to the wire (4).

3. A safety plug to prevent pull-out according to claim 1, characterized in that: The inside of the slot (6) is connected to the card block (5) by a snap-fit ​​method, and the left side of the card block (5) is provided with an arc groove, and the arc groove on the left side of the card block (5) is connected to the arc block (7) by a snap-fit ​​method, and the left side of the arc block (7) is provided with a second spring (8).

4. A safety plug to prevent pull-out according to claim 1, characterized in that: The first mounting shell (1) is provided with threaded rods (9) on the left and right sides, and the outer side of the threaded rods (9) is connected to the connecting ring (10) by threads, and the protective shell (11) forms a sliding structure on the outer side of the threaded rods (9).

5. A safety plug to prevent pull-out according to claim 1, characterized in that: The adjusting ring (13) is symmetrically arranged about the center line of the first mounting shell (1), and the outer sides of the left and right ends of the adjusting ring (13) are connected to the third spring (14) by means of threads, and the middle part of the adjusting ring (13) is in a close fit with the third spring (14).

6. A safety plug to prevent pull-out according to claim 1, characterized in that: The first mounting shell (1) has a second mounting shell (15) installed at its front end, and the lower end of the second mounting shell (15) is provided with a connector (16), and the interior of the connector (16) is connected to the first mounting shell (1) and the wire (4).

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