Anti-loosening connector structure
By using elastic snap ring and limit ring structure in the RF connector, the rotation of the connection screw sleeve is limited, and the problem of loosening of the RF connector in the vibrating environment is solved, and a stable and reliable electrical connection is achieved.
Patent Information
- Application Number
- CN202420151942.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-22
AI Technical Summary
The radio frequency connector is prone to loosening in vibrating environments, resulting in sliding friction of the mechanical and electrical reference surface, unstable and even disconnected.
An anti-loosening connector structure is designed. By setting an elastic snap ring and a limit ring on the outer conductor, the axial rotation of the connecting screw sleeve is limited, ensuring continuous and reliable pressure and friction, and preventing the thread from loosening.
It effectively prevents thread loosening and the separation of connectors, ensures stability and reliability in vibrating environments, and improves the continuous connection of electrical passages.
Smart Images
Figure CN222234065U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-loosening connector structure. Background Art
[0002] RF connectors are the most commonly used and very important precision devices for transmitting electromagnetic energy in the field of RF communications. They are widely used in wireless communications, broadcasting, television, radar, navigation, computers, and instruments. There are usually several ways to connect male and female heads: threaded connection, bayonet connection, push-in connection, and floating blind plug. Among them, the threaded type is the most common method. The male head is generally designed with a rotatable connecting screw sleeve structure with an internal thread, and the female head is designed with an external thread. When the connecting screw sleeve is screwed in, the male and female heads will move relative to each other along the axis until they are reliably connected. The threaded connection has a large torque characteristic, which makes the connection more stable and reliable. It is generally used in occasions with larger connections and in some unstable environments.
[0003] However, when it is in a vibrating environment for a long time, the meshing threads are very likely to loosen, thereby reducing or even eliminating the above-mentioned pressure. At this time, sliding friction is likely to occur between the mechanical and electrical reference surfaces, making the electrical connection unstable, and even the mechanical and electrical reference surfaces are separated, and the electrical connection is disconnected. At the same time, the outer conductors of the connectors at both ends will move to both ends, resulting in reliability failure problems in the mechanical and electrical connections, and the entire electrical path is completely disconnected. In view of this, the utility model proposes an anti-loosening connector structure to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of the utility model is to provide an anti-loosening connector structure to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An anti-loosening connector structure comprises an outer conductor, wherein an inner conductor is arranged inside the outer conductor;
[0007] The outer wall of the outer conductor is rotatably sleeved with a connecting screw sleeve, the outer wall of the outer conductor is provided with a clamping groove, an elastic clamping ring is arranged in the clamping groove, a limiting ring is arranged between the clamping groove and the connecting screw sleeve, the limiting ring is sleeved on the outer wall of the outer conductor, the limiting ring is in contact with the connecting screw sleeve, and the connecting screw sleeve is restricted from axial rotation.
[0008] As an improvement of the above technical solution, the elastic clamping ring is made of elastic material and is provided with a notch.
[0009] As an improvement of the above technical solution, the elastic clamping ring is provided with a first inclined surface, and the limiting ring is provided with a second inclined surface;
[0010] The first inclined surface contacts the second inclined surface, so that the elastic clamp is locked toward the outer conductor.
[0011] As an improvement of the above technical solution, the connecting screw sleeve is provided with a limited contact surface, and the limited contact surface is provided with a plurality of groups of limited tooth grooves;
[0012] The limiting ring is provided with a plurality of groups of limiting teeth, the plurality of groups of limiting teeth match the plurality of groups of limiting tooth grooves, the limiting teeth are in contact with the limiting tooth grooves, so that the connecting screw sleeve does not rotate axially.
[0013] As an improvement of the above technical solution, the outer wall of the outer conductor is provided with multiple groups of external teeth, and the inner wall of the limiting ring is provided with multiple groups of internal tooth grooves;
[0014] The multiple groups of external teeth match the multiple groups of internal tooth grooves, and the external teeth are clamped in the internal tooth grooves, so that the limiting ring does not rotate axially.
[0015] As an improvement of the above technical solution, the limiting ring is provided with a placement groove, the placement groove matches the position of the elastic clamping ring, and the elastic clamping ring is arranged in the placement groove, so that the limiting ring is positioned on the outer wall of the outer conductor.
[0016] As an improvement of the above technical solution, a sealing ring is arranged in the connecting screw sleeve, and the sealing ring is sleeved on the outer wall of the outer conductor.
[0017] As an improvement of the above technical solution, an insulating dielectric block is arranged inside the outer conductor, and the inner conductor is arranged inside the insulating dielectric block;
[0018] The outer conductor is also provided with an outer shielding layer for connecting the cables.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] During the assembly process, the inner conductor is first assembled into the outer conductor, and then the connecting screw sleeve is connected to the outer wall of the outer conductor, and at the same time, the elastic clamping ring is pressed into the clamping groove, and the connecting screw sleeve is connected to the female connector;
[0021] Then, the limiting ring is pressed on the outer wall of the outer conductor from the direction of the elastic clamp ring to the connecting screw sleeve. When the limiting ring is displaced from the direction of the elastic clamp ring to the connecting screw sleeve, the limiting ring squeezes the elastic clamp ring so that the elastic clamp ring shrinks toward the outer conductor until the limiting ring contacts the connecting screw sleeve. The elastic clamp ring is reset to resist the limiting ring so that the limiting ring is positioned on the outer wall of the outer conductor. At the same time, since the limiting ring contacts the connecting screw sleeve, the connecting screw sleeve can be restricted from axial rotation.
[0022] Through the cooperation between the limit ring and the elastic clamping ring, when the limit ring contacts the connecting screw sleeve, the connecting screw sleeve will not rotate radially relative to each other, thereby ensuring the stability of the connection between the connector female head and the connecting screw sleeve, and ensuring that there is continuous and reliable pressure and friction between the connector female head and the connecting screw sleeve. The existence of such continuous and reliable pressure makes the overall thread locking structure of the product stable and reliable, and the thread will not loosen or fall off even in vibration and other environments. It has high practical value and has broad application space and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the structure of the utility model;
[0024] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;
[0025] Figure 3 It is a schematic diagram of the explosion structure of the utility model;
[0026] Figure 4 It is a schematic diagram of the structure of the outer conductor of the utility model;
[0027] Figure 5 This is a schematic diagram of the structure of the connecting screw sleeve of the utility model;
[0028] Figure 6 This is a schematic diagram of the structure of the limit ring of the utility model;
[0029] Figure 7 The utility model is a schematic diagram of the assembly of the connecting screw sleeve and the female connector.
[0030] In the figure: 10, outer conductor; 11, outer shielding layer of the cable; 12, slot; 13, outer teeth; 20, inner conductor; 30, insulating medium block; 40, elastic snap ring; 41, first inclined surface; 42, notch; 50, limiting ring; 51, second inclined surface; 52, limiting teeth; 53, inner tooth groove; 54, placement groove; 60, connecting screw sleeve; 61, limiting contact surface; 62, limiting tooth groove; 70, sealing ring. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] Example:
[0033] like Figure 1-7 As shown, this embodiment provides an anti-loosening connector structure, including an outer conductor 10, wherein an inner conductor 20 is disposed inside the outer conductor 10;
[0034] The outer wall of the outer conductor 10 is rotatably sleeved with a connecting screw sleeve 60, the outer wall of the outer conductor 10 is provided with a slot 12, an elastic snap ring 40 is arranged in the slot 12, a limiting ring 50 is arranged between the slot 12 and the connecting screw sleeve 60, the limiting ring 50 is sleeved on the outer wall of the outer conductor 10, the limiting ring 50 is in contact with the connecting screw sleeve 60, and limits the connecting screw sleeve 60 from axial rotation.
[0035] In this embodiment, during the assembly process, the inner conductor 20 is first assembled in the outer conductor 10, and then the connecting screw sleeve 60 is connected to the outer wall of the outer conductor 10, and at the same time, the elastic clamping ring 40 is pressed into the clamping groove 12, and the connecting screw sleeve 60 is connected to the female connector;
[0036] Then, the limiting ring 50 is pressed onto the outer wall of the outer conductor 10 from the direction of the elastic snap ring 40 to the connecting screw sleeve 60. When the limiting ring 50 is displaced from the direction of the elastic snap ring 40 to the connecting screw sleeve 60, the limiting ring 50 squeezes the elastic snap ring 40, so that the elastic snap ring 40 shrinks toward the outer conductor 10 until the limiting ring 50 contacts the connecting screw sleeve 60. The elastic snap ring 40 is reset to resist the limiting ring 50, so that the limiting ring 50 is positioned on the outer wall of the outer conductor 10. At the same time, since the limiting ring 50 contacts the connecting screw sleeve 60, the connecting screw sleeve 60 can be restricted from axial rotation.
[0037] By cooperating with the limit ring 50 and the elastic retaining ring 40, when the limit ring 50 contacts the connecting screw sleeve 60, the connecting screw sleeve 60 will not rotate radially relative to each other, thereby ensuring the stability of the connection between the connector female head and the connecting screw sleeve 60, and ensuring that there is continuous and reliable pressure and friction between the connector female head and the connecting screw sleeve 60. The existence of such continuous and reliable pressure makes the overall thread locking structure of the product stable and reliable, and the thread will not loosen or fall off even in vibration environments. The product has high practical value and has broad application space and market prospects.
[0038] Specifically, the elastic clamp ring 40 is made of elastic material, and a notch 42 is provided on the elastic clamp ring 40 .
[0039] In this embodiment, the elastic material includes but is not limited to tin bronze and beryllium bronze.
[0040] In this embodiment, the notch 42 can facilitate the deformation of the elastic snap ring 40 and facilitate the installation of the elastic snap ring 40.
[0041] Specifically, the elastic snap ring 40 is provided with a first inclined surface 41, and the limiting ring 50 is provided with a second inclined surface 51;
[0042] The first inclined surface 41 contacts the second inclined surface 51 , so that the elastic clamping ring 40 is locked toward the outer conductor 10 .
[0043] In this embodiment, when the limiting ring 50 is assembled, the cooperation between the first inclined surface 41 and the second inclined surface 51 can facilitate the contraction and deformation of the elastic clamping ring 40.
[0044] Specifically, the connecting screw sleeve 60 is provided with a limited contact surface 61, and the limited contact surface 61 is provided with a plurality of groups of limited tooth grooves 62;
[0045] The limiting ring 50 is provided with a plurality of groups of limiting teeth 52 , which match with a plurality of groups of limiting tooth grooves 62 . The limiting teeth 52 are in contact with the limiting tooth grooves 62 , so that the connecting screw sleeve 60 does not rotate axially.
[0046] In this embodiment, when the limiting ring 50 contacts the connecting screw sleeve 60 , the limiting teeth 52 contact the limiting tooth grooves 62 , thereby preventing the connecting screw sleeve 60 from axially rotating.
[0047] Specifically, the outer wall of the outer conductor 10 is provided with a plurality of groups of external teeth 13, and the inner wall of the limiting ring 50 is provided with a plurality of groups of internal tooth grooves 53;
[0048] The multiple groups of external teeth 13 match the multiple groups of internal tooth grooves 53 , and the external teeth 13 are stuck in the internal tooth grooves 53 , so that the limiting ring 50 does not rotate axially.
[0049] In this embodiment, through the cooperation between the external teeth 13 and the internal tooth grooves 53, when the limiting ring 50 contacts the connecting screw sleeve 60, the limiting ring 50 can be prevented from rotating along with the connecting screw sleeve 60, so as to maintain the stability of the connecting screw sleeve 60.
[0050] Specifically, the limiting ring 50 is provided with a placement groove 54 , the placement groove 54 matches the position of the elastic snap ring 40 , and the elastic snap ring 40 is arranged in the placement groove 54 , so that the limiting ring 50 is positioned on the outer wall of the outer conductor 10 .
[0051] In this embodiment, the placement groove 54 is provided to facilitate the elastic snap ring 40 to be clamped in the placement groove 54 when it is restored from the rolled state to the original state, so as to limit the position of the limit ring 50;
[0052] Of course, when the whole needs to be disassembled, the elastic clamping ring 40 can be removed from the clamping groove 12 to disassemble the whole.
[0053] Specifically, a sealing ring 70 is disposed inside the connecting screw sleeve 60 , and the sealing ring 70 is sleeved on the outer wall of the outer conductor 10 .
[0054] Specifically, an insulating dielectric block 30 is disposed in the outer conductor 10, and the inner conductor 20 is disposed in the insulating dielectric block 30;
[0055] The outer conductor 10 is also provided with an outer shielding layer 11 connected to the cable.
[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An anti-loosening connector structure, characterized in that: It comprises an outer conductor (10), wherein an inner conductor (20) is arranged inside the outer conductor (10); The outer wall of the outer conductor (10) is rotatably sleeved with a connecting screw sleeve (60), the outer wall of the outer conductor (10) is provided with a clamping groove (12), an elastic clamping ring (40) is arranged in the clamping groove (12), a limiting ring (50) is arranged between the clamping groove (12) and the connecting screw sleeve (60), the limiting ring (50) is sleeved on the outer wall of the outer conductor (10), the limiting ring (50) is in contact with the connecting screw sleeve (60), and the connecting screw sleeve (60) is restricted from axial rotation.
2. The anti-loosening connector structure according to claim 1, characterized in that: The elastic clamp ring (40) is made of an elastic material, and a notch (42) is provided on the elastic clamp ring (40).
3. The anti-loosening connector structure according to claim 1, characterized in that: The elastic clamping ring (40) is provided with a first inclined surface (41), and the limiting ring (50) is provided with a second inclined surface (51); The first inclined surface (41) contacts the second inclined surface (51), so that the elastic clamping ring (40) is locked in the direction of the outer conductor (10).
4. The anti-loosening connector structure according to claim 1, characterized in that: The connecting screw sleeve (60) is provided with a limited contact surface (61), and the limited contact surface (61) is provided with a plurality of groups of limited tooth grooves (62); The limiting ring (50) is provided with a plurality of groups of limiting teeth (52), the plurality of groups of limiting teeth (52) match the plurality of groups of limiting tooth grooves (62), and the limiting teeth (52) are in contact with the limiting tooth grooves (62), so that the connecting screw sleeve (60) does not rotate axially.
5. The anti-loosening connector structure according to claim 1, characterized in that: The outer wall of the outer conductor (10) is provided with a plurality of groups of external teeth (13), and the inner wall of the limiting ring (50) is provided with a plurality of groups of internal tooth grooves (53); The multiple groups of external teeth (13) match the multiple groups of internal tooth grooves (53), and the external teeth (13) are clamped in the internal tooth grooves (53), so that the limiting ring (50) does not rotate axially.
6. The anti-loosening connector structure according to claim 1, characterized in that: The limiting ring (50) is provided with a placement groove (54), the placement groove (54) matches the position of the elastic clamp ring (40), and the elastic clamp ring (40) is arranged in the placement groove (54), so that the limiting ring (50) is positioned on the outer wall of the outer conductor (10).
7. The anti-loosening connector structure according to claim 1, characterized in that: A sealing ring (70) is arranged inside the connecting screw sleeve (60), and the sealing ring (70) is sleeved on the outer wall of the outer conductor (10).
8. The anti-loosening connector structure according to claim 1, characterized in that: An insulating dielectric block (30) is arranged inside the outer conductor (10), and the inner conductor (20) is arranged inside the insulating dielectric block (30); The outer conductor (10) is also provided with an outer shielding layer (11) connected to the cable.