Anti-loose plug

Abstract

The utility model provides a kind of anti-loose plug, it is related to electrical connector technical field, including male head, female head and locking piece, the shaft portion is formed on the male head, the bayonet is formed on the female head, the locking piece is half open sleeve, one end thereof is rotatably connected with the shaft portion, and the other end is equipped with the card slot for being engaged with the bayonet;When the male head and female head are inserted, the locking piece is rotated in the direction of being close to the female head by operable mode, and the locking piece is sleeved on the outer wall of the female head, so that the card slot is engaged with the bayonet, so that the male head and female head are axially locked. The present application is simple in structure, convenient to operate, to improve the anti-loose structure of existing plug complex, the problem of inconvenient operation.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and more specifically, to an anti-loosening plug. Background Technology

[0002] Most existing plug anti-loosening structures, such as the reliable BNC connector disclosed in Chinese patent CN118315871A, use a locking plate on the female connector to hold the locking pin on the male connector within a slot. This locking plate only releases the locking pin when the rotating plate is pressed, greatly improving the reliability of the connection between the male and female connectors after insertion and preventing separation due to external impact or accidental contact by the operator. However, this type of structure requires the design of locking pins, guide grooves, slots, mounting bases, locking plates, and rotating plates, making the structure relatively complex. Moreover, since the locking pins and slots are formed on the female and male connectors and are relatively small, the corresponding locking plates and rotating plates are also small, making it inconvenient for users to lock and unlock. In addition, the locking pin must first slide along the guide groove to the slot position before engaging with the locking plate, making the operation steps cumbersome and difficult to achieve quick assembly and disassembly. Utility Model Content

[0003] This utility model discloses an anti-loosening plug, which aims to improve the problem of complex anti-loosening structure and inconvenient operation of existing plugs.

[0004] The present invention adopts the following solution: An anti-loosening plug includes a male connector, a female connector, and a locking member. The male connector has a shaft portion, and the female connector has a locking pin. The locking member is a semi-open sleeve, one end of which is rotatably connected to the shaft portion, and the other end has a groove for engaging with the locking pin. When the male connector and the female connector are inserted, the locking member can be rotated operably towards the female connector, causing the locking member to be fitted onto the outer wall of the female connector, thereby engaging the groove with the locking pin and locking the male connector and the female connector axially.

[0005] As a further improvement, the locking member is provided with symmetrical lugs, and each lug is provided with a mounting hole for fitting the shaft portion, so that the locking member is hinged to the male end.

[0006] As a further improvement, two slots are symmetrically arranged along the axis of the locking member, and are arranged in a U-shape or V-shape.

[0007] As a further improvement, two locking pins are symmetrically protruding along the axis of the outer wall of the female head, and the two locking pins engage with the locking grooves one by one to restrict the rotation of the female head relative to the male head.

[0008] As a further improvement, the locking element is integrally formed and has a U-shaped cross-section.

[0009] As a further improvement, a latching position is formed by protrusions on the outer wall of the locking member corresponding to the position of the slot.

[0010] As a further improvement, the inner wall of the locking member is interference-fitted with the male head.

[0011] As a further improvement, the inner wall of the locking member is symmetrically provided with blocking portions for engaging with the outer wall of the female head, and the minimum distance between the two blocking portions is less than the outer diameter of the female head.

[0012] As a further improvement, the blocking portion is disposed adjacent to the card slot.

[0013] As a further improvement, the blocking part has an inclined guide surface and a limiting surface connected to the guide surface and conforming to the outer wall of the female head.

[0014] By adopting the above technical solution, the present invention can achieve the following technical effects: 1. This application adds a movable locking component to the male connector, which engages with a locking pin on the female connector via a groove on the locking component to achieve locking of the male and female connectors. The structure is simple, with fewer parts, saving costs. Furthermore, the male and female connectors can be switched between locked and unlocked by rotating the locking component, making operation simple, convenient, and quick. In addition, the groove is independently located on the locking component, reducing the size limitations of the groove and facilitating user rotation of the locking component, thus improving user convenience.

[0015] 2. The two locking pins on the female end engage with the locking slots one-to-one to limit the rotation of the female end relative to the male end and prevent accidental operation or contact that could cause the locking pins to disengage from the locking slots.

[0016] 3. The locking component is integrally molded, which can reduce the number of parts and assembly, save mold opening costs, parts costs and assembly costs, and enhance the market competitiveness of the product.

[0017] 4. The inner wall of the locking component is provided with a blocking part to engage with the outer wall of the female connector, so as to ensure the connection stability between the locking component and the female connector, prevent the slot and the pin from automatically unlocking, and ensure the reliability of locking the male and female connectors. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of one embodiment of the present utility model; Figure 2 and Figure 3 This is a cross-sectional view of one embodiment of the present invention along different sections; Figure 4 This is a structural schematic diagram of a locking component according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of one embodiment of the present invention during unlocking.

[0020] icon: 1-Male end; 11-Shaft portion; 2-Female head; 21-Clamping pin; 3-Locking part; 31-Slot; 32-Lug; 321-Mounting hole; 33-Handle position; 34-Blocking part; 341-Guide surface; 342-Limiting surface. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] The terms “top,” “bottom,” “upper,” “lower,” “left,” “right,” “front,” “back,” and similar expressions used in this document are for illustrative purposes only. The terms “first,” “second,” etc., are only used to distinguish different objects and should not be construed as indicating or implying relative importance or the quantity, specific order, or primary or secondary relationship of the indicated technical features. The term “several” means one or more, and “multiple” means two or more, unless otherwise explicitly specified. Example

[0023] Combination Figures 1 to 5This embodiment provides an anti-loosening plug, including a male connector 1, a female connector 2, and a locking member 3. The male connector 1 has a shaft portion 11 formed on it, and the female connector 2 has a locking pin 21 formed on it. The locking member 3 is a semi-open sleeve, one end of which is rotatably connected to the shaft portion 11, and the other end is provided with a groove 31 for engaging with the locking pin 21. When the male connector 1 and the female connector 2 are inserted, the locking member 3 is rotated in an operable manner toward the direction of the female connector 2, and the locking member 3 is placed on the outer wall of the female connector 2, thereby engaging the groove 31 with the locking pin 21, so that the male connector 1 and the female connector 2 are locked axially.

[0024] In use, first align and insert the male connector 1 and female connector 2. Then, manually rotate the locking member 3 towards the female connector 2 so that the groove 31 on the locking member 3 engages with the locking pin 21 on the female connector 2, thus locking the male connector 1 and female connector 2 axially and preventing them from loosening. For disassembly, apply force to rotate the locking member 3 away from the female connector 2 so that the locking pin 21 disengages from the groove 31. Then, pull the male connector 1 out of the female connector 2. The operation is convenient.

[0025] It should be noted that in this embodiment, a movable locking member 3 is added to the male connector 1. The locking member 3 engages with the female connector 21 via a slot 31, thereby locking the male connector 1 and the female connector 2. This design is simple, has few parts, and saves costs. Furthermore, rotating the locking member 3 allows the male connector 1 and the female connector 2 to switch between locked and unlocked states, making operation simple, convenient, and quick. In addition, independently mounting the slot 31 on the locking member 3 reduces size limitations and facilitates user operation by allowing the user to rotate the locking member 3.

[0026] In a preferred embodiment, the locking member 3 is symmetrically provided with lugs 32, and each lug 32 is provided with a mounting hole 321 for fitting with the shaft portion 11, so that the locking member 3 and the male head 1 are hinged. The mounting hole 321 is simply inserted into the corresponding shaft portion 11, making assembly and disassembly convenient. The inner wall of the locking member 3 mates with the outer wall of the male head 1, which prevents the locking member 3 from shaking, ensures the rotation direction of the locking member 3, and ensures that the locking member 3 and the locking pin 21 can engage.

[0027] Furthermore, two slots 31 are symmetrically arranged along the axis of the locking member 3, and are arranged in a U-shape or V-shape to facilitate the insertion or removal of the locking pins 21. For example, two locking pins 21 are symmetrically protruding along the axis of the outer wall of the female head 2. The two locking pins 21 are engaged with the slots 31 one-to-one to restrict the rotation of the female head 2 relative to the male head 1, and to prevent the female head 2 from rotating relative to the male head 1 due to misoperation or accidental contact, which would cause the locking pins 21 to disengage from the slots 31.

[0028] Based on the above embodiments, in an optional embodiment of this utility model, the locking member 3 is integrally formed, and its cross-sectional shape is U-shaped. The locking member 3 can be a plastic part, integrally formed by injection molding, and its material can be ABS, etc. Integral molding can reduce parts, reduce assembly, save mold opening costs, parts costs, and assembly costs, and improve the market competitiveness of the product. In other embodiments, the locking member 3 can also be a sheet metal part or a die-cast part, without specific limitation. It should be mentioned that in this embodiment, the cross-section of the locking member 3 is U-shaped, and its inner wall is adapted to the outer wall of the male head 1 and the female head 2, which can prevent the locking member 3 from being skewed and ensure that the slot 31 and the pin 21 can be aligned. In addition, the U-shaped sleeve shape of the locking member 3 can protect the connection between the male head 1 and the female head 2, and prevent the male head 1 or the female head 2 from being skewed under the action of external force, which would cause the pin to deform.

[0029] Preferably, the outer wall of the locking member 3 has a protrusion forming a handle position 33 corresponding to the slot 31, so that the user can apply force when unlocking, making it convenient for the user to perform the unlocking operation.

[0030] In another embodiment, the inner wall of the locking member 3 is press-fitted with the male connector 1 to prevent the locking member 3 from automatically slipping off its open side, causing the locking pin 21 and the locking groove 31 to unlock. Further, the inner wall of the locking member 3 is symmetrically provided with blocking portions 34 for engaging with the outer wall of the female connector 2, and the minimum distance between the two blocking portions 34 is less than the outer diameter of the female connector 2. The blocking portions 34 further ensure the connection stability between the locking member 3 and the female connector 2, preventing the locking groove 31 and the locking pin 21 from automatically unlocking, and ensuring the reliability of the locking of the male connector 1 and the female connector 2. In one embodiment, the blocking portion 3 is an inverted buckle, which engages with the outer wall of the female connector 2 to restrict the rotation of the locking member 3.

[0031] In other embodiments, the blocking part 34 is disposed adjacent to the slot 31 to improve the elasticity of the wall surface where the blocking part 34 is located, so that the blocking part 34 can slide into the wall surface of the female head 2 and engage with the bottom wall surface of the female head 2. In this embodiment, the bottom wall surface of the female head 2 is defined as the wall surface away from the closed side of the locking member 3. Preferably, the blocking part 34 has an inclined guide surface 341 and a limiting surface 342 connected to the guide surface 341 and conforming to the outer wall of the female head 2. The guide surface 341 facilitates the sliding of the blocking part 34 to the bottom wall surface of the female head 2 in the locking direction, and the limiting surface 342 is adapted to the outer wall surface of the female head 2 so that the locking member 3 can be stable in the locked state, avoiding the locking member 3 from shaking, generating noise, or affecting the appearance. When locking, the locking member 3 is pressed in along the direction close to the female head 2 so that the locking member 3 is sleeved on the female head 2 and engages with the outer wall of the female head 2 through the blocking part 34, thereby preventing the locking member 3 from coming out of the female head 2. Simultaneously, the slot 31 engages with the pin 21 to restrict the rotation of the female head 2 and its axial movement, thereby locking the male head 1 and the female head 2. To unlock, force is applied to push the locking member 3 away from the female head 2.

[0032] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

Claims

1. A locking plug, characterized in that, The device includes a male connector, a female connector, and a locking component. The male connector has a shaft portion, and the female connector has a locking pin. The locking component is a semi-open sleeve, with one end rotatably connected to the shaft portion and the other end having a groove for engaging with the locking pin. When the male and female connectors are inserted, the locking component is operably rotated towards the female connector, causing it to fit onto the outer wall of the female connector, thereby engaging the groove with the locking pin and locking the male and female connectors axially.

2. The anti-loosening plug according to claim 1, characterized in that, The locking member is provided with symmetrical lugs, and each lug is provided with a mounting hole for fitting the shaft portion, so that the locking member can be hinged to the male end.

3. The anti-loosening plug according to claim 1, characterized in that, Two slots are symmetrically arranged along the axis of the locking member, and are arranged in a U-shape or V-shape.

4. The anti-loosening plug according to claim 3, characterized in that, Two locking pins are symmetrically protruding along the axis of the outer wall of the female head. The two locking pins engage with the locking grooves one by one to restrict the rotation of the female head relative to the male head.

5. The anti-loosening plug according to claim 3, characterized in that, The locking component is integrally formed and has a U-shaped cross-section.

6. The anti-loosening plug according to any one of claims 1-5, characterized in that, The outer wall of the locking member has a protrusion corresponding to the slot, forming a latch position.

7. The anti-loosening plug according to claim 5, characterized in that, The inner wall of the locking member is interference-fitted with the male connector.

8. The anti-loosening plug according to claim 7, characterized in that, The inner wall of the locking member is symmetrically provided with blocking parts for engaging with the outer wall of the female head, and the minimum distance between the two blocking parts is less than the outer diameter of the female head.

9. The anti-loosening plug according to claim 8, characterized in that, The blocking portion is disposed adjacent to the card slot.

10. The anti-loosening plug according to claim 8, characterized in that, The blocking part has an inclined guide surface and a limiting surface connected to the guide surface and conforming to the outer wall of the female head.

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