Push-pull type electric power connector with anti-falling structure

Abstract

The utility model discloses a push-pull type electric power connector with an anti-drop structure, which relates to the technical field of electric power connectors, and comprises a plug shell and a socket shell, the plug shell and the socket shell are mutually sleeved, the outer wall of the plug shell is provided with a clamping groove, the outer wall of the socket shell is fixedly clamped with a steel ball matched with the clamping groove, and the outer wall of the socket shell is provided with an anti-drop structure. A clamping groove is formed in the outer wall of the plug shell, the steel ball is nested in the clamping groove, a cup ring is slidably connected to the joint of the plug shell and the socket shell in a sleeving mode, one end of the cup ring extends to the outer portion of the steel ball, a limiting ring is arranged on the outer wall of the socket shell, the extending end of the cup ring makes contact with the limiting ring, and a mounting groove is formed in the outer wall of the middle of the plug shell. According to the utility model, the right side of the cup ring is limited by the limiting ring on the socket shell, so that the position of the cup ring can be kept stable even if the second spring is influenced by inertia force in the vertical direction to generate displacement, thereby realizing stable connection when the plug shell and the socket shell are vertically installed.

Description

Technical Field

[0001] The utility model relates to the technical field of power connectors, in particular to a push-pull type power connector with an anti-drop structure. Background Art

[0002] In the field of rail transit power connectors, existing push-pull power connectors mainly use the steel ball on the socket to achieve the anti-drop function after the plug and socket are plugged in. This design can effectively prevent the accidental separation of the plug and socket when used in horizontal installation, ensuring the stability of power transmission.

[0003] However, when it comes to vertical installation and use conditions, existing connector technology has significant problems. Since the connector mating part lacks other effective limiting structures except for the steel ball, there may be a risk of disengagement between the plug and the socket when affected by inertial force, especially when the train starts, brakes, or decelerates through a curve. This disengagement phenomenon may not only cause interruption of power transmission, but also pose a potential threat to the safe operation of the rail transit system. Therefore, in order to solve the problems existing in the prior art and improve the stability and safety of the push-pull power connector under vertical installation and use conditions, the utility model proposes a push-pull power connector with an anti-disengagement structure. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a push-pull type power connector with an anti-drop structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A push-pull power connector with an anti-slip structure comprises a plug housing and a socket housing, wherein the plug housing and the socket housing are sleeved with each other, a slot is provided on the outer wall of the plug housing, a steel ball matching the slot is fixedly clamped on the outer wall of the socket housing, the steel ball is nested in the slot, a cup ring is slidably sleeved at the connection between the plug housing and the socket housing, one end of the cup ring extends to the outside of the steel ball, a limiting ring is provided on the outer wall of the socket housing, the extended end of the cup ring contacts the limiting ring, an installation groove is provided on the middle outer wall of the plug housing, a limiting block is placed in the installation groove of the plug housing, a first spring is placed on the lower surface of the limiting block, a limiting groove matching the limiting block is provided on the inner wall of the cup ring, a fastening screw is threadedly connected to the outer wall of the cup ring, a spring is fixedly connected to the outer wall of the cup ring through the fastening screw, the other end of the spring extends to the inside of the cup ring, and the extended end of the spring corresponds to the limiting block.

[0007] Preferably, a limiting shaft is fixedly connected to the outer wall of the middle part of the plug housing, a sliding groove matching the limiting shaft is formed in the inner wall of the cup ring, and the limiting shaft is slidably connected with the cup ring through the sliding groove.

[0008] Preferably, the limiting block is in a "convex" shape, a fixing groove is formed in the plug housing at the installation groove, a retaining ring is sleeved on the plug housing at the fixing groove, and the retaining ring is slidably sleeved with the limiting block.

[0009] Preferably, an upper groove is formed at the bottom of the limiting block, a lower groove is formed in the plug housing at the installation groove, the lower groove corresponds to the upper groove, one end of the first spring is located in the lower groove, and the other end of the first spring extends into the upper groove.

[0010] Preferably, the elastic piece is in a "7" shape, and the elastic piece is made of a metal material with good elasticity.

[0011] Preferably, an outer convex ring is fixedly connected to the outer wall of the middle part of the plug housing, an inner convex ring is fixedly connected to the inner wall of the cup ring, a second spring is sleeved on the outer wall of the plug housing, the second spring is located between the plug housing and the cup ring, one end of the second spring contacts with the outer convex ring, and the other end of the second spring contacts with the inner convex ring.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, when the plug housing and the socket housing are in a locked state, the first spring pushes the limiting block upward, and the limiting block is affected by the acting force of the first spring. At this time, the front end of the limiting block enters the limiting groove. At this time, the left side of the cup ring is limited by the limiting block, and the right side of the cup ring is limited by the limiting ring on the socket housing. At this time, the cup ring cannot move, so that even if the second spring is displaced under the influence of the inertial force in the vertical direction, the position of the cup ring can be kept stable, and the cup ring can stably limit and protect the steel ball, thereby realizing stable connection when the plug housing and the socket housing are vertically installed, realizing the anti - detachment function between the plug housing and the socket housing, and improving the stability and safety of power transmission.

[0014] 2. In the present utility model, a sliding groove is provided on the inner wall of the cup ring, and the cooperation of the sliding groove with the limiting shaft on the plug housing can effectively prevent the cup ring from rotating during the working process, ensuring the accuracy of the working positions of the elastic piece and the limiting block.

[0015] 3. In the present utility model, through the "convex" shape design of the retaining ring and the limiting block, the retaining ring limits and protects the limiting block, avoiding the limiting block popping out of the installation groove when the cup ring falls off. Description of the Drawings

[0016] Figure 1Structural schematic diagram of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0017] Figure 2 Exploded view of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0018] Figure 3 Structural schematic diagram of the plug housing of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0019] Figure 4 Structural schematic diagram of the limit block, the first spring, and the retaining ring of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0020] Figure 5 Structural schematic diagram of the socket housing of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0021] Figure 6 Structural schematic diagram of the cup ring of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0022] Figure 7 Cross-sectional view of the cup ring of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0023] Figure 8 Structural schematic diagram of the fastening screw and the elastic piece of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0024] Figure 9 Structural schematic diagram of the plug housing, the socket housing, and the cup ring of a push-pull type power connector with an anti-disconnection structure of the present utility model.

[0025] Figure 10 Of a push-pull type power connector with an anti-disconnection structure of the present utility model Figure 8 Structural schematic diagram at position A.

[0026] Reference numerals in the figure: 1, plug housing; 101, card slot; 102, installation groove; 103, fixing groove; 104, lower groove; 105, outer convex ring; 2, socket housing; 201, limit ring; 3, cup ring; 301, sliding groove; 302, limit groove; 303, inner convex ring; 4, fastening screw; 5, elastic piece; 6, limit shaft; 7, limit block; 701, upper groove; 8, first spring; 9, retaining ring; 10, second spring; 11, steel ball. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0028] As shown in the attached Figure 1 to the attached Figure 10 figures:

[0029] A push-pull type power connector with an anti-disconnection structure includes a plug housing 1 and a socket housing 2. The plug housing 1 and the socket housing 2 are sleeved with each other. A card slot 101 is opened on the outer wall of the plug housing 1, and a steel ball 11 matching the card slot 101 is fixedly clamped on the outer wall of the socket housing 2. The steel ball 11 is nested in the card slot 101. A cup ring 3 is slidably sleeved at the connection of the plug housing 1 and the socket housing 2. One end of the cup ring 3 extends to the outside of the steel ball 11. A limit ring 201 is provided on the outer wall of the socket housing 2. The extended end of the cup ring 3 is in contact with the limit ring 201. An installation groove 102 is opened on the outer wall of the middle part of the plug housing 1. A limit block 7 is placed in the plug housing 1 in the installation groove 102. A first spring 8 is placed on the lower surface of the limit block 7. A limit groove 302 matching the limit block 7 is opened on the inner wall of the cup ring 3. A fastening screw 4 is threadedly connected to the outer wall of the cup ring 3. A elastic piece 5 is fixedly connected to the outer wall of the cup ring 3 through the fastening screw 4. The other end of the elastic piece 5 extends into the cup ring 3. The extended end of the elastic piece 5 corresponds to the limit block 7.

[0030] In the above technical solution, when the plug housing 1 and the socket housing 2 are in the locked state, the first spring 8 pushes the limit block 7 upward. The limit block 7 is affected by the force of the first spring 8. At this time, the front end of the limit block 7 enters the limit groove 302. At this time, the left side of the cup ring 3 is limited by the limit block 7, and the right side of the cup ring 3 is limited by the limit ring 201 on the socket housing 2. At this time, the cup ring 3 cannot move, and the cup ring 3 can stably limit and protect the steel ball 11, so as to realize stable connection when the plug housing 1 and the socket housing 2 are vertically installed, and realize the anti-disconnection function between the plug housing 1 and the socket housing 2;

[0031] When the connector needs to be opened, the user gently presses the elastic piece 5 with a finger. After the elastic piece 5 is affected by an external force, it will push and press the limit block 7, causing the limit block 7 to move downward and compress the first spring 8. The limit block 7 enters the installation groove 102 inside. At this time, the limit block 7 releases the restriction on the cup ring 3, and the cup ring 3 can move to the left. The cup ring 3 is separated from the steel ball 11. The cup ring 3 releases the restriction on the steel ball 11. At this time, the steel ball 11 can move in the slot hole of the socket housing 2, and pulling the plug housing 1 can easily separate the plug housing 1 and the socket housing 2.

[0032] As shown in the attached Figure 3 and the attached Figure 6As shown, a limiting shaft 6 is fixedly connected to the outer wall of the middle part of the plug housing 1. A sliding groove 301 matching the limiting shaft 6 is provided on the inner wall of the cup ring 3, and the limiting shaft 6 is slidably connected to the cup ring 3 through the sliding groove 301.

[0033] In the above technical solution, the sliding groove 301 is provided on the inner wall of the cup ring 3. The sliding groove 301 cooperates with the limiting shaft 6 on the plug housing 1, which can effectively prevent the cup ring 3 from rotating during operation and ensure the accuracy of the working positions of the elastic piece 5 and the limiting block 7.

[0034] As shown in the Figure 10 attachment, the limiting block 7 is in a "convex" shape. A fixing groove 103 is provided at the installation groove 102 of the plug housing 1. A retaining ring 9 is sleeved on the plug housing 1 at the fixing groove 103, and the retaining ring 9 is slidably sleeved with the limiting block 7.

[0035] In the above technical solution, through the design of the retaining ring 9 and the "convex" shape of the limiting block 7, the retaining ring 9 limits and protects the limiting block 7 to prevent the limiting block 7 from popping out of the installation groove 102 when the cup ring 3 falls off.

[0036] As shown in the Figure 10 attachment, an upper groove 701 is provided at the bottom of the limiting block 7. A lower groove 104 is provided at the installation groove 102 of the plug housing 1. The lower groove 104 corresponds to the upper groove 701. One end of the first spring 8 is located in the lower groove 104, and the other end of the first spring 8 extends into the upper groove 701.

[0037] In the above technical solution, through the design of the upper groove 701 and the lower groove 104, it is used to limit and protect the first spring 8.

[0038] As shown in the Figure 8 attachment, the elastic piece 5 is in a "7" shape. The elastic piece 5 is made of a metal material with good elasticity. This design enables the elastic piece to respond flexibly when subjected to an external force.

[0039] As shown in the Figure 1 to the Figure 7 attachment, an outer convex ring 105 is fixedly connected to the outer wall of the middle part of the plug housing 1. An inner convex ring 303 is fixedly connected to the inner wall of the cup ring 3. A second spring 10 is sleeved on the outer wall of the plug housing 1. The second spring 10 is located between the plug housing 1 and the cup ring 3. One end of the second spring 10 contacts the outer convex ring 105, and the other end of the second spring 10 contacts the inner convex ring 303.

[0040] In the above technical solution, through the design of the second spring 10, the second spring 10 presses against the cup ring 3, thereby limiting the cup ring 3, enabling the cup ring 3 to be stably sleeved outside the socket housing 2, preventing the cup ring 3 from moving horizontally, and further improving the connection stability between the plug housing 1 and the socket housing 2.

[0041] Specific usage and function of this embodiment:

[0042] When the present utility model is in use, in the locked state of the plug housing 1 and the socket housing 2, the first spring 8 pushes the limiting block 7 upward. Under the action of the first spring 8, the front end of the limiting block 7 enters the limiting groove 302. At this time, the left side of the cup ring 3 is limited by the limiting block 7, and the right side of the cup ring 3 is limited by the limiting ring 201 on the socket housing 2. At this time, the cup ring 3 cannot move, so that even if the second spring 10 is displaced under the influence of an inertial force in the vertical direction, the position of the cup ring 3 can remain stable. The cup ring 3 can stably limit and protect the steel ball 11, so as to realize stable connection when the plug housing 1 and the socket housing 2 are vertically installed, and realize the anti-disconnection function between the plug housing 1 and the socket housing 2;

[0043] Please refer to the above structure and process Figures 1 - 10 。

[0044] When it is necessary to open the connector, the user gently presses the elastic piece 5 with a finger. After being acted on by an external force, the elastic piece 5 will push the limiting block 7, causing the limiting block 7 to move downward and compress the first spring 8. The limiting block 7 enters the interior of the installation groove 102. At this time, the limiting block 7 releases the restriction on the cup ring 3, and the cup ring 3 can move to the left. At this time, the second spring 10 is compressed, and the cup ring 3 is separated from the steel ball 11. The cup ring 3 releases the restriction on the steel ball 11. At this time, the steel ball 11 can move in the slot of the socket housing 2, and pulling the plug housing 1 can easily separate the plug housing 1 from the socket housing 2.

[0045] Please refer to the above structure and process Figures 1 - 10 。

[0046] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A push-pull type power connector with an anti-loosening structure, comprising a plug housing (1) and a socket housing (2), characterized in that, The plug housing (1) and the socket housing (2) are sleeved with each other. A clamping groove (101) is formed on the outer wall of the plug housing (1). A steel ball (11) that matches the clamping groove (101) is fixedly clamped on the outer wall of the socket housing (2). The steel ball (11) is nested in the clamping groove (101). A cup ring (3) is slidably sleeved at the connection between the plug housing (1) and the socket housing (2). One end of the cup ring (3) extends to the outside of the steel ball (11). A limiting ring (201) is arranged on the outer wall of the socket housing (2). The extending end of the cup ring (3) is in contact with the limiting ring (201). An installation groove (102) is formed on the outer wall of the middle part of the plug housing (1). A limiting block (7) is placed in the plug housing (1) within the installation groove (102). A first spring (8) is placed on the lower surface of the limiting block (7). A limiting groove (302) that matches the limiting block (7) is formed on the inner wall of the cup ring (3). A fastening screw (4) is threadedly connected to the outer wall of the cup ring (3). An elastic sheet (5) is fixedly connected to the outer wall of the cup ring (3) through the fastening screw (4). The other end of the elastic sheet (5) extends into the cup ring (3). The extending end of the elastic sheet (5) corresponds to the limiting block (7).

2. The push-pull type power connector with an anti-loosening structure according to claim 1, characterized in that, A limiting shaft (6) is fixedly connected to the outer wall of the middle part of the plug housing (1). A sliding groove (301) that matches the limiting shaft (6) is formed on the inner wall of the cup ring (3). The limiting shaft (6) is slidably connected to the cup ring (3) through the sliding groove (301).

3. The push-pull type power connector with an anti-detachment structure according to claim 1, wherein, The limiting block (7) is in a "convex" shape. A fixing groove (103) is formed at the position of the installation groove (102) on the plug housing (1). A retaining ring (9) is sleeved at the position of the fixing groove (103) on the plug housing (1). The retaining ring (9) is slidably sleeved with the limiting block (7).

4. A push-pull type power connector with an anti-detachment structure according to claim 3, characterized in that, An upper groove (701) is formed at the bottom of the limiting block (7). A lower groove (104) is formed at the position of the installation groove (102) on the plug housing (1). The lower groove (104) corresponds to the upper groove (701). One end of the first spring (8) is located in the lower groove (104). The other end of the first spring (8) extends into the upper groove (701).

5. A push-pull type power connector with an anti-loosening structure according to claim 1, characterized in that, The elastic sheet (5) is in a "7" shape. The elastic sheet (5) is made of an elastic metal material.

6. The push-pull type power connector with an anti-detachment structure according to claim 1, wherein, An outer convex ring (105) is fixedly connected to the outer wall of the middle part of the plug housing (1). An inner convex ring (303) is fixedly connected to the inner wall of the cup ring (3). A second spring (10) is sleeved on the outer wall of the plug housing (1). The second spring (10) is located between the plug housing (1) and the cup ring (3). One end of the second spring (10) is in contact with the outer convex ring (105). The other end of the second spring (10) is in contact with the inner convex ring (303).

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