A four-pin plug specifically for solenoid valves

Abstract

This utility model discloses a four-pin plug for solenoid valves, including a plug housing with four pins inside, and a connecting mechanism. The connecting mechanism includes a limiting ring, a slip ring, an internal threaded ring, and a top plate. The limiting rings are respectively disposed on the outer arc surface of the plug housing, and the slip ring is laterally slidably connected to the outer arc surface of the plug housing, located between the two limiting rings. The outer arc surface of the slip ring is provided with an internal threaded ring, and the top plate is slidably connected to the sliding groove on the outer arc surface of the plug housing. This four-pin plug for solenoid valves increases the friction between the plug housing and the solenoid valve socket by the movement of the internal threaded ring during installation, thereby reducing the need for additional installation steps, reducing the installation time of the four-pin plug, increasing the firmness of the connection between the four-pin plug and the solenoid valve socket, and reducing the probability of the four-pin plug and socket loosening during long-term use.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, specifically a four-pin plug for electromagnetic valves. Background Technology

[0002] Solenoid valves are common electrical devices, electromagnetically controlled industrial equipment widely used in various everyday applications. The structure of a solenoid valve mainly includes an electromagnetic coil, valve core, valve seat, structural components, and other parts. The four-pin plug is one of the main components of a solenoid valve. The main function of the four-pin plug is to provide a stable electrical connection, ensuring the normal operation of the solenoid valve. The four-pin plug typically includes a power line, a signal line, and a ground line. In the prior art, patent publication number CN217934426 U proposes an anti-dislodgement four-pin plug, including a connector. One side of the connector is equipped with a four-pin plug assembly. The outer end of the four-pin plug assembly near the insertion part has an integrally formed positioning ring. One side of the connector has an anti-dislodgement component, which includes a left limiting ring and a right limiting ring that can be snapped together. The left and right limiting rings are movably mounted together by a movable pin. Although this can be used to connect solenoid valves, to ensure a secure connection, the limiting rings and positioning rings need to be installed after the four-pin plug is connected. The installation process involves multiple steps and is inconvenient to use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a four-pin plug for solenoid valves. It eliminates the need for additional installation steps, reduces the installation time of the four-pin plug, increases the firmness of the connection between the four-pin plug and the solenoid valve socket, and reduces the probability of the four-pin plug and socket becoming loose during long-term use. It can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a four-pin plug for electromagnetic valves, comprising a plug housing, wherein four pins are respectively provided inside the plug housing, and a connecting mechanism is also included;

[0005] Connection mechanism: It includes a limiting ring, a slip ring, an internal threaded ring, and a top plate. The limiting rings are respectively set on the outer arc surface of the plug shell. The slip ring is laterally slidably connected to the outer arc surface of the plug shell and is located between the two limiting rings. The outer arc surface of the slip ring is provided with an internal threaded ring. The top plates are respectively slidably connected in the sliding groove of the outer arc surface of the plug shell. The four top plates are distributed in a ring around the axis of the plug shell. The top plates are all installed in conjunction with the slip rings. During the installation process, the movement of the internal threaded ring pushes the four top plates to move synchronously. The external support of the four top plates increases the friction between the plug shell and the solenoid valve socket. No additional installation steps are required. While reducing the installation time of the four-pin plug, it increases the firmness of the connection between the four-pin plug and the solenoid valve socket and reduces the probability of the four-pin plug and socket loosening during long-term use.

[0006] Furthermore, the connecting mechanism also includes a linkage plate and an inclined top block. The linkage plates are slidably connected to the inside of the plug housing. All linkage plates are L-shaped plates. The horizontal plates of the linkage plates are fixedly connected to the adjacent top plates. The vertical plates of the linkage plates are all provided with inclined top blocks. The inclined top blocks pass through the clearance sliding holes on the outer arc surface of the plug housing and are installed in cooperation with the slip rings, so that the slip rings push the four top plates to move synchronously.

[0007] Furthermore, the connecting mechanism also includes springs and support plates. The support plates are respectively disposed inside the plug housing. Springs are provided between the side of the inclined top block near the center of the plug housing and the adjacent support plates to provide elastic limit for the inclined top block.

[0008] Furthermore, the connecting mechanism also includes guide posts, which are slidably connected in the guide holes in the middle of the support plate. The guide posts pass through the interior of the spring and are fixedly connected to the adjacent inclined blocks to provide guiding support for the extension and contraction of the spring.

[0009] Furthermore, rubber pads are provided on the sides of the top plate away from the center of the plug housing to increase the friction of the top plate surface.

[0010] Furthermore, there are four linkage plates. Two mutually perpendicular linkage plates are staggered left and right, two mutually parallel linkage plates on the left are staggered front and back, and two mutually parallel linkage plates on the right are staggered up and down, so that the movement of the four linkage plates does not affect each other and reduces the space occupied.

[0011] Furthermore, the outer arc surface of the internal threaded ring is provided with anti-slip stripes to facilitate rotation of the internal threaded ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This four-pin plug for electromagnetic valves has the following advantages:

[0013] During installation, the movement of the internal threaded ring pushes the four top plates to move synchronously. The external support of the four top plates increases the friction between the plug housing and the solenoid valve socket. No additional installation steps are required. This reduces the installation time of the four-pin plug and increases the firmness of the connection between the four-pin plug and the solenoid valve socket, reducing the probability of the four-pin plug and socket loosening during long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall device of this utility model after an explosion.

[0016] Figure 3 This is a structural schematic diagram of the overall device of this utility model, viewed from the front and in cross-section.

[0017] Figure 4 This is a partial structural schematic diagram of the connecting mechanism of this utility model.

[0018] In the diagram: 1. Plug housing, 2. Pin, 3. Connecting mechanism, 31. Limiting ring, 32. Slip ring, 33. Internal threaded ring, 34. Top plate, 35. Linkage plate, 36. Inclined top block, 37. Guide post, 38. Spring, 39. Support plate, 4. Rubber pad, 5. Anti-slip stripes. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This embodiment provides a technical solution: a four-pin plug for solenoid valves, including a plug housing 1, which provides protection and support for the four-pin plug. The plug housing 1 has four pins 2 inside, which are respectively inserted into the sockets in the solenoid valve socket to achieve electrical connection. The outer arc surface of the plug housing 1 is respectively provided with labels corresponding to the pins 2, which facilitates the determination of the insertion position of the pins 2. It also includes a connecting mechanism 3.

[0021] Connection mechanism 3 includes a limiting ring 31, a slip ring 32, an internal threaded ring 33, and a top plate 34. The limiting rings 31 are respectively disposed on the outer arc surface of the plug housing 1. The slip ring 32 is laterally slidably connected to the outer arc surface of the plug housing 1 and is located between the two limiting rings 31. The outer arc surface of the slip ring 32 is provided with an internal threaded ring 33. The top plates 34 are respectively slidably connected to the grooves on the outer arc surface of the plug housing 1. The four top plates 34 are distributed in a ring around the axis of the plug housing 1. Each top plate 34 is installed in conjunction with the slip ring 32. Rotating the internal threaded ring 33 connects the internal threaded ring 33 to the external threaded ring on the solenoid valve socket, thus connecting the four-pin plug to the solenoid valve socket. Connection mechanism 3 also includes a linkage plate 35 and an inclined top. Block 36 and linkage plate 35 are slidably connected to the inside of plug housing 1. All linkage plates 35 are L-shaped plates. The horizontal plates of linkage plates 35 are fixedly connected to the adjacent top plates 34. The vertical plates of linkage plates 35 are provided with inclined top blocks 36. The inclined top blocks 36 pass through the clearance sliding holes on the outer arc surface of plug housing 1 and are installed in cooperation with slip rings 32. As the internal thread ring 33 rotates, the internal thread ring 33 drives the slip ring 32 to slide to the left. The slip ring 32 applies a force to the inclined surface of the inclined top blocks 36, pushing the four inclined top blocks 36 to move synchronously and with the same amplitude towards the center of plug housing 1. Under the connection of linkage plate 35, the four top plates 34 move synchronously and with the same amplitude away from the center of plug housing 1 until the rubber pad. 4. The plug housing 1 contacts and deforms with the inner arc surface of the solenoid valve socket. The four top plates 34 provide external support, increasing the friction between the plug housing 1 and the solenoid valve socket, making the connection between the four-pin plug and the solenoid valve socket more secure. The connecting mechanism 3 also includes springs 38 and support plates 39. The support plates 39 are respectively located inside the plug housing 1. Springs 38 are provided between the side of the inclined top block 36 near the center of the plug housing 1 and the adjacent support plates 39. During the insertion of the four-pin plug, the springs 38 contract to generate elastic force. When the four-pin plug separates from the solenoid valve socket, the elastic force of the springs 38 facilitates the reset of the inclined top block 36. The connecting mechanism 3 also includes guide posts 37, which are slidably connected to the support plates 39. Inside the guide hole of the part, the guide post 37 passes through the interior of the spring 38 and is fixedly connected to the adjacent inclined top block 36, providing guidance and support for the extension and retraction of the spring 38 and the movement of the inclined top block 36. The side of the top plate 34 away from the center of the plug housing 1 is provided with rubber pads 4 to increase the friction of the surface of the top plate 34. There are four linkage plates 35. The two linkage plates 35 that are perpendicular to each other are staggered left and right. The two linkage plates 35 that are parallel to each other on the left are staggered front and back. The two linkage plates 35 that are parallel to each other on the right are staggered up and down to ensure the normal movement of the four linkage plates 35 and reduce the space occupied by the four linkage plates 35. The outer arc surface of the internal thread ring 33 is provided with anti-slip stripes 5 to facilitate the rotation of the internal thread ring 33.

[0022] The working principle of the four-pin plug for solenoid valves provided by this utility model is as follows: In use, the plug housing 1 is inserted into the socket of the solenoid valve socket, and the four pins 2 are respectively inserted into the socket sleeves inside the solenoid valve socket. Then, the internal thread ring 33 is rotated to connect the internal thread ring 33 with the external thread ring on the solenoid valve socket. As the internal thread ring 33 rotates, it drives the slip ring 32 to slide to the left. The slip ring 32 applies a force to the inclined surface of the inclined top block 36, pushing the four inclined top blocks 36 to move synchronously and with the same amplitude towards the center of the plug housing 1. Under the connection of the linkage plate 35, the four top plates 34 move synchronously and with the same amplitude away from the center of the plug housing 1 until the rubber pad 4 contacts the inner arc surface of the socket of the solenoid valve socket and deforms. The external support of the four top plates 34 increases the friction between the plug housing 1 and the solenoid valve socket, making the connection between the four-pin plug and the solenoid valve socket more secure.

[0023] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A four-pin plug for solenoid valve, comprising a plug housing (1), the inside of the plug housing (1) is provided with four pins (2) respectively, characterized in that: Also include the connecting mechanism (3); The connecting mechanism (3) comprises a limiting ring (31), a sliding ring (32), an internally threaded ring (33) and a top plate (34), the limiting ring (31) is arranged on the outer arc surface of the plug shell (1), the sliding ring (32) is transversely and slidingly connected to the outer arc surface of the plug shell (1), the sliding ring (32) is located between the two limiting rings (31), the outer arc surface of the sliding ring (32) is provided with the internally threaded ring (33), the top plate (34) is slidingly connected to the sliding groove of the outer arc surface of the plug shell (1), the four top plates (34) are annularly distributed with the axis of the plug shell (1) as the center, and the top plates (34) are all installed in cooperation with the sliding ring (32).

2. The four-core plug for solenoid valve according to claim 1, wherein: The connecting mechanism (3) further comprises a linkage plate (35) and an inclined top block (36), the linkage plate (35) is slidingly connected to the inside of the plug shell (1), the linkage plate (35) is an L-shaped plate, the horizontal plate of the linkage plate (35) is fixedly connected with the adjacent top plate (34), the vertical plate end of the linkage plate (35) is provided with the inclined top block (36), and the inclined top block (36) penetrates through the position-giving sliding hole of the outer arc surface of the plug shell (1) and is installed in cooperation with the sliding ring (32).

3. The four-pin plug for solenoid valve according to claim 2, wherein: The connecting mechanism (3) further comprises a spring (38) and a support plate (39), the support plate (39) is arranged in the inside of the plug shell (1), and the side surface of the inclined top block (36) close to the center of the plug shell (1) is provided with the spring (38) between the adjacent support plate (39).

4. The four-pin plug for solenoid valve according to claim 3, wherein: The connecting mechanism (3) further comprises a guide column (37), the guide column (37) is slidingly connected to the guide hole in the middle of the support plate (39), and the guide column (37) penetrates through the inside of the spring (38) and is fixedly connected with the adjacent inclined top block (36).

5. The four-pin plug for solenoid valve according to claim 1, wherein: The side surface of the top plate (34) away from the center of the plug shell (1) is provided with a rubber pad (4).

6. The four-pin plug for solenoid valve according to claim 2, wherein: The number of the linkage plates (35) is four, two of the linkage plates (35) are vertically and left-right staggered, two of the linkage plates (35) on the left side are front-rear staggered, and two of the linkage plates (35) on the right side are up-down staggered.

7. The four-pin plug for solenoid valve according to claim 1, wherein: The outer arc surface of the internally threaded ring (33) is provided with anti-skid stripes (5).

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