Waterproof SMA connector

Abstract

The utility model discloses a waterproof SMA connector, and relates to the technical field of connectors, the waterproof SMA connector comprises a connector, one end of the connector is fixedly connected with a middle plastic pipe, the middle plastic pipe wraps the peripheral surface of the connector, one end of the connector is in threaded connection with a sleeve, and one end of the sleeve is provided with a sealing assembly; the sealing assembly comprises a lantern ring movably connected to the peripheral surface of the sleeve in a sleeving mode, and a sealing gasket movably connected to the peripheral surface of the sleeve in a sleeving mode is arranged on one face of the lantern ring in an abutting mode. The fixing ring, the arc-shaped block, the limiting rod, the fixing block and the compression spring cooperate, so that the lantern ring continuously compresses the sealing pad at one end of the middle plastic pipe under the elastic force of the spring, the periphery of the connector and the periphery of the sleeve are sealed in an omnibearing mode, and meanwhile the service life of the connector in a humid environment is prolonged in a threaded connection mode.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a waterproof SMA connector. Background Technology

[0002] SMA connectors consist of an inner core, an outer shell, and an external grounding component. The inner core is located inside the outer shell and is connected to the outside through a small hole. When two SMA connectors are plugged together, the inner core and outer shell partially overlap to achieve a circuit connection. Since the two SMA connectors are not completely sealed when plugged together, water can easily enter the interior when the surrounding environment is humid, which can lead to a short circuit.

[0003] In addition, the existing patent publication number CN216750445U discloses a sealed and waterproof SMA connector. In the above principle description, the sealing gasket and sealing base in the specific implementation of the sealing and waterproofing do not work together to achieve the waterproofing effect. Therefore, this solution proposes a waterproof SMA connector. Utility Model Content

[0004] To address the issue of water ingress that easily occurs during the actual use of SMA connectors, this application provides a waterproof SMA connector.

[0005] The waterproof SMA connector provided in this application adopts the following technical solution:

[0006] A waterproof SMA connector includes a connector head, one end of which is fixedly connected to a central plastic tube that wraps around the outer circumferential surface of the connector head. A sleeve is threaded to one end of the connector head, and a sealing assembly is provided at one end of the sleeve. The sealing assembly includes a collar that is movably fitted onto the outer circumferential surface of the sleeve. One side of the collar abuts against a sealing gasket that is movably fitted onto the outer circumferential surface of the sleeve. The sealing gasket is generally conical, and the minimum diameter of its outermost ring is smaller than the inner diameter of the central plastic tube.

[0007] By adopting the above technical solution, the device uses the insertion and mating of the connector and the sleeve, the connection head is reinforced by the plastic tube, and the conical sealing gasket is pressurized by the collar in the sealing component, so that the sealing gasket fits tightly against the plastic tube and the sleeve, thereby achieving a stable connection and good sealing.

[0008] Preferably, the sealing assembly further includes a retaining ring fixed to one end of the sleeve, with arc-shaped protrusions symmetrically fixed to both sides of the retaining ring.

[0009] By adopting the above technical solution, the fixing ring and the arc-shaped protrusion provide a stable support structure for subsequent components.

[0010] Preferably, the arc-shaped protrusion moves through the limiting rod, one end of the limiting rod is fixedly connected to a fixing block, the fixing block is fixedly connected to a collar, and the outer circumferential surface of the limiting rod is sleeved with a compression spring at both ends abutting against the fixing block and the arc-shaped protrusion respectively.

[0011] By adopting the above technical solution, the arc-shaped protrusion block moves through the limiting rod, and the fixed block at one end of the limiting rod is connected to the collar, which can limit and guide the collar, so that the collar can move stably along the direction of the limiting rod on the outer circumferential surface of the sleeve, ensuring the accuracy of the position of the sealing gasket during installation and operation, thereby enhancing the sealing effect of the sealing assembly and the stability of the overall structure.

[0012] Preferably, a first threaded groove is formed on the outer peripheral surface of one end of the connector, a male pin is fixedly connected to the middle of one end of the connector, and a data transmission line is fixedly connected to the end of the connector away from the male pin.

[0013] By adopting the above technical solution, the threaded groove at one end of the connector can be threadedly connected to the adapter component to achieve fastening.

[0014] Preferably, one side of the sealing gasket is symmetrically fixedly connected with a locking block that engages with the collar.

[0015] By adopting the above technical solution, one side of the sealing gasket is symmetrically fixedly connected with a locking block that engages with the collar.

[0016] Preferably, a gap is provided between the two collars, and the distance between the gaps is less than the width of the locking block.

[0017] By adopting the above technical solution, the range of motion of the locking block is limited, so that the sealing gasket can be accurately positioned and firmly clamped when installed on the collar, preventing excessive movement or misalignment of the sealing gasket, thereby ensuring the sealing effect.

[0018] Preferably, a second threaded groove adapted to and connected to the first threaded groove is formed on the inner circumferential surface of one end of the sleeve, a plug for insertion into the male pin is fixedly installed at one end of the sleeve in the middle, and a data connection cable is rotatably connected to the end of the sleeve away from the second threaded groove.

[0019] By adopting the above technical solution, the structure of the inner circumferential surface of one end of the sleeve is adapted to the threaded groove of the connector, which can realize the mechanical fastening between the two and enhance the connection stability. The component installed in the middle of one end of the sleeve is inserted into the male pin end of the male connector to realize the transmission of data or signals. The data connection line connected to the sleeve away from the insertion end can connect the female connector to other devices.

[0020] Preferably, both the sealing gasket and the locking block are made of rubber material.

[0021] By adopting the above technical solution, the good elasticity, flexibility, sealing and corrosion resistance of rubber can be utilized to make the sealing gasket better fill the connection gap to achieve efficient sealing, and the locking block can tightly lock the collar and is not easily damaged.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] The connector is threaded together with the first threaded groove of the connector and the second threaded groove of the sleeve. The male pin end is then inserted into the plug, which significantly improves the reliability of the connection. The threaded connection is more secure than the ordinary plug-in connection and can withstand the shaking and vibration during daily use of the equipment, preventing the connection from loosening. At the same time, the retaining ring, arc block, limit rod, retaining block and compression spring work together to make the collar continuously press the sealing gasket against one end of the middle plastic tube under the spring force. Due to the elasticity of the rubber material of the sealing gasket, after being squeezed, the inner circumference of the gasket fits against the outer circumference of the sleeve, and the outer circumference locks into the middle plastic tube, sealing the connector and the outer circumference of the sleeve in all directions. At the same time, the threaded connection method greatly improves the service life of the connector in harsh environments such as humidity and outdoor. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the application documents;

[0025] Figure 2 This is a schematic diagram of the sealing assembly in this application.

[0026] Figure 3 This is a schematic diagram of the connector and the plastic tube in this application.

[0027] Figure 4 This is a schematic diagram of the sealing gasket structure in this application.

[0028] Figure 5 This is a schematic diagram of the sealing assembly and sealing gasket in this application.

[0029] Figure 6 This is a schematic diagram of the sleeve structure in this application.

[0030] Reference numerals: 1. Connector; 101. First threaded groove; 102. Male pin end; 2. Inner plastic tube; 3. Data transmission line;

[0031] 4. Sleeve; 401. Second threaded groove; 402. Plug; 5. Sealing assembly; 501. Retaining ring; 502. Arc-shaped protrusion; 503. Limiting rod; 504. Retaining block; 505. Compression spring; 506. Collar;

[0032] 6. Sealing gasket; 601. Clamping block; 7. Data connection cable. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0034] The device's "up, down, left, right" perspectives are... Figure 1 The orientation of the attached diagram is the reference.

[0035] This application discloses a waterproof SMA connector.

[0036] Reference Figure 1 , Figure 4 , Figure 5 As shown, a waterproof SMA connector includes a connector 1, with a plastic tube 2 fixedly connected to one end of the connector 1. The plastic tube 2 wraps around the outer peripheral surface of the connector 1. A sleeve 4 is threaded to one end of the connector 1. A sealing component 5 is provided at one end of the sleeve 4. The sealing component 5 includes a collar 506, which is movably fitted onto the outer peripheral surface of the sleeve 4. A sealing gasket 6 is engaged with one side of the collar 506. The sealing gasket 6 is movably fitted onto the outer peripheral surface of the sleeve 4. The sealing gasket 6 abuts against one end of the plastic tube 2, thereby forming a sealed cavity inside the plastic tube 2 that wraps around the outer peripheral surface of the connection between the connector 1 and the sleeve 4. The sealing gasket 6 is generally conical, and the minimum diameter of the outermost ring is smaller than the inner diameter of the plastic tube 2.

[0037] During installation, the waterproof SMA connector has one end of the connector 1 fixedly connected to the plastic tube 2, and the other end of the connector 1 threadedly connected to the sleeve 4. In the sealing component 5 set at one end of the sleeve 4, the collar 506 is movably sleeved on the outer circumference of the sleeve 4. The sealing gasket 6, which is engaged on one side of the collar 506, is also sleeved on the outer circumference of the sleeve 4 and abuts against one end of the plastic tube 2. By utilizing the fact that the sealing gasket 6 is conical in shape and the smallest diameter of the outermost ring is smaller than the inner diameter of the plastic tube 2, a sealed cavity is formed in the plastic tube 2 to wrap around the outer circumference of the connection between the connector 1 and the sleeve 4, thereby achieving a waterproof seal.

[0038] Reference Figure 2 , Figure 3 , Figure 6As shown, the sealing assembly 5 also includes a fixing ring 501 fixedly installed at one end of the sleeve 4. Symmetrically fixed on both sides of the fixing ring 501 are arc-shaped protrusions 502 with a central hole. The arc-shaped protrusions 502, located at the central hole, movably pass through a limiting rod 503. One end of the limiting rod 503 is fixedly connected to a fixing block 504 fixedly connected to the sleeve 506. A compression spring 505 is sleeved on the outer circumferential surface of the limiting rod 503. One end of the compression spring 505 abuts against the fixing block 504, and the other end abuts against the arc-shaped protrusion 502. A first threaded groove 101 for assembly connection is opened on the outer circumferential surface of one end of the connector 1. A male pin end 102 is fixedly installed in the middle of one end of the connector 1. The connector 1 is located away from the male pin end 102. One end of the sleeve 4 is fixedly connected to a data transmission line 3 that is fixedly inserted through the plastic tube 2. A locking block 601 is symmetrically fixedly connected to one side of the sealing gasket 6. The locking block 601 is engaged with the collar 506. There is a gap between the two collars 506, and the gap is smaller than the width of the locking block 601. A second threaded groove 401 is opened on the inner circumferential surface of one end of the sleeve 4. The second threaded groove 401 is threadedly connected to the first threaded groove 101. A plug 402 is fixedly installed at the middle of one end of the sleeve 4. The plug 402 is inserted into the male pin end 102. A round hole is opened at the end of the sleeve 4 away from the second threaded groove 401. A data connection line 7 that is fixedly connected to the plug 402 is rotatably connected to the round hole. Both the sealing gasket 6 and the locking block 601 are made of rubber material.

[0039] The implementation principle of a waterproof SMA connector according to an embodiment of this application is as follows: First, the connector 1 is threadedly connected to the second threaded groove 401 on the sleeve 4 through the first threaded groove 101. The male pin end 102 is inserted into the plug 402 to achieve electrical connection. In the sealing assembly 5, the retaining ring 501 is fixed to one end of the sleeve 4. The limiting rod 503 on the arc-shaped protrusion 502 passes through the retaining block 504 on the collar 506. The compression spring 505 abuts between the retaining block 504 and the arc-shaped protrusion 502. The collar 506 is locked in place. The locking block 601 on the connecting sealing gasket 6 abuts against the middle plastic tube 2. Under the action of the compression spring 505, the collar 506 drives the sealing gasket 6 to press one end of the middle plastic tube 2, forming a sealed cavity that wraps around the connector 1 and the outer periphery of the sleeve 4. Since the sealing gasket 6 and the locking block 601 are made of rubber, their elasticity allows the inner circumferential surface of the sealing gasket 6 to fit tightly against the outer circumferential surface of the sleeve 4 after being squeezed. The outer periphery of the sealing gasket 6 can be tightly locked and connected to one end of the middle plastic tube 2, achieving a waterproof function.

[0040] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A waterproof SMA connector, characterized by: Including connecting head (1), one end of connecting head (1) is fixedly connected with middle plastic pipe (2), middle plastic pipe (2) is wrapped in the outer peripheral surface of connecting head (1); One end of connecting head (1) is threadedly connected with sleeve pipe (4), one end of sleeve pipe (4) is provided with sealing assembly (5), sealing assembly (5) includes sleeve ring (506) movably sleeved on the outer peripheral surface of sleeve pipe (4), one side of sleeve ring (506) is provided with sealing gasket (6) movably sleeved on the outer peripheral surface of sleeve pipe (4); The sealing gasket (6) is conical in whole, and the smallest diameter of the outermost circle is smaller than the inner diameter of the middle plastic pipe (2).

2. A waterproof SMA connector according to claim 1, characterized in that: The sealing assembly (5) further includes a fixed ring (501) fixedly arranged at one end of the sleeve pipe (4), and arc-shaped protruding blocks (502) are symmetrically and fixedly connected to both sides of the fixed ring (501).

3. A waterproofable SMA connector according to claim 2, characterized in that: The arc-shaped protruding blocks (502) movably penetrate through limiting rods (503), one end of the limiting rods (503) is fixedly connected with fixed blocks (504), the fixed blocks (504) are fixedly connected with the sleeve ring (506), and the outer peripheral surface of the limiting rods (503) is sleeved with compression springs (505) abutting against the fixed blocks (504) and the arc-shaped protruding blocks (502) at both ends.

4. A waterproof SMA connector according to claim 1, characterized in that: A first threaded groove (101) is formed in the outer peripheral surface of one end of the connecting head (1), a male needle end (102) is fixedly connected to the middle of one end of the connecting head (1), and a data transmission line (3) is fixedly connected to the end of the connecting head (1) away from the male needle end (102).

5. A waterproof SMA connector according to claim 1, wherein: One side of the sealing gasket (6) is symmetrically and fixedly connected with clamping blocks (601) clamped with the sleeve ring (506).

6. A waterproofable SMA connector according to claim 5, characterized in that: The sleeve ring (506) is provided with a gap, and the gap is smaller than the width of the clamping blocks (601).

7. A waterproof SMA connector according to claim 1, wherein: A second threaded groove (401) is formed in the inner peripheral surface of one end of the sleeve pipe (4) and is adaptively connected with the first threaded groove (101), a plug (402) is fixedly installed in the middle of one end of the sleeve pipe (4) and is inserted with the male needle end (102), and a data connection line (7) is rotatably connected to the end of the sleeve pipe (4) away from the second threaded groove (401).

8. A waterproofable SMA connector according to claim 1, characterized in that: The sealing gasket (6) and the clamping blocks (601) are made of rubber material.

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