An SMA connector with good waterproof performance

Abstract

The utility model discloses a SMA connector with good waterproof performance applied in the field of radio frequency connector, including the connector main part, the inside installation of connector main part has the connecting rod, the inner wall sliding sleeve joint of connector main part has the connector, and the connector is inserted with the connecting rod, the utility model discloses a way that the trapezoidal groove is removed by moving slide cylinder, and the trapezoidal groove removes and makes the steel ball and the joint groove separate the joint, can reach the purpose of convenient assembly and disassembly, reduces the work load, has improved work efficiency, and the elasticity of first spring is changed by rotating the fixed ring, can adjust the pre -tightening force of first spring, guarantees the stability of connection, the utility model discloses a way that the sealing gasket is driven to the connector and is pressed tightly under the action of second spring by telescopic ring, can reach the purpose that the waterproof performance is good, has improved the service life, has guaranteed the stability of connection, and cooperates the rubber sealing ring, has further improved waterproof performance.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency connectors, and in particular to an SMA connector with good waterproof performance. Background Technology

[0002] SMA connectors are widely used small threaded coaxial connectors characterized by wide bandwidth, superior performance, high reliability, and long lifespan. SMA connectors are suitable for connecting RF cables or microstrip lines in the RF loops of microwave equipment and digital communication systems. They are applicable to microwave applications up to 18 GHz. Applications include telecommunications, networking, wireless communication, and testing and measuring instruments.

[0003] A search of Chinese patents revealed publication number CN209786328U: a stable SMA connector, comprising a connector body, a push rod, and a threaded hole. A rubber sleeve is located on the right side of the connector body, and a first spring is housed inside the rubber sleeve. A sleeve frame is located on the right side of the rubber sleeve, and a fixing seat is located on the right side of the sleeve frame. The interior of the fixing seat is connected to the bottom of a tapered connector. The push rod is located on the left side inside the sleeve frame, and its two ends are respectively connected to one end of a first moving rod and a second moving rod. The intersection of the first and second moving rods is located inside the tapered connector. This stable SMA connector, with its push rod, allows for inward compression of the second spring connecting the other ends of the first and second moving rods when pressed. This facilitates the connection between the connector body and the connector socket.

[0004] Existing connectors are inconvenient to install and disassemble. Generally, connectors are connected to the head via threads, requiring repeated rotation of the connector during installation and disassembly, which is cumbersome, increases workload, and reduces work efficiency. They also have poor waterproof performance. While connectors typically have internal sealing rings for waterproofing, these rings can deform during use, causing a decrease in sealing performance, making them prone to water ingress, and affecting the stability of use. To solve the above problems, we propose an SMA connector with better waterproof performance. Utility Model Content

[0005] The purpose of this invention is to provide an SMA connector with good waterproof performance, which has the advantages of being easy to install and disassemble and having good waterproof performance.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a waterproof SMA connector, comprising a connector body, a connecting rod installed inside the connector body, a connector head slidably sleeved on the inner wall of the connector body, and the connector head being inserted into the connecting rod, an adjusting thread being formed on the surface of the connector body, a fixing ring being threadedly connected to the surface of the adjusting thread, a sliding cylinder being slidably sleeved on the surface of the connector body, a first spring being provided between the sliding cylinder and the fixing ring, a plurality of trapezoidal grooves being formed on the inner wall of the sliding cylinder, a plurality of fixing balls being provided on the inner wall of the connector body, and a snap-fit ​​groove being formed on the surface of the connector head, and the snap-fit ​​groove engaging with the fixing balls.

[0007] By adopting the above technical solution, the trapezoidal groove is moved by moving the sliding cylinder, and the movement of the trapezoidal groove causes the steel ball to disengage from the snap-fit ​​groove, thus removing the connector. This method facilitates assembly and disassembly, reduces workload, and improves work efficiency. Rotating the fixing ring changes the elastic force of the first spring, which can adjust the preload of the first spring and ensure the stability of the connection.

[0008] The present invention is further configured such that: a telescopic ring is slidably sleeved on the inner wall of the connector body, a second spring is provided between the telescopic ring and the inner wall of the connector body, and a sealing gasket is adhered to the surface of the telescopic ring, and the sealing gasket is in contact with the connector head.

[0009] By adopting the above technical solution, the sealing gasket is pressed against the connector by the telescopic ring under the action of the second spring, which can achieve good waterproof performance, improve service life, and ensure connection stability. Combined with the rubber sealing ring, the waterproof performance is further improved.

[0010] The present invention is further configured such that the surface of the slide tube is provided with a first anti-slip texture.

[0011] By adopting the above technical solution, the first anti-slip texture is set to prevent hand slippage and facilitate the movement of the slide.

[0012] The present invention is further configured such that the surface of the adjusting thread is threadedly connected with a threaded ring.

[0013] By adopting the above technical solution, the fixed ring is fixed by setting a threaded ring, thereby improving stability.

[0014] The present invention is further configured such that the sealing gasket is made of fluororubber.

[0015] The above technical solution uses fluororubber as the material for the sealing gasket, which is durable and provides a good sealing effect.

[0016] The present invention is further configured such that the surfaces of both the fixing ring and the threaded ring are provided with a second anti-slip texture.

[0017] By adopting the above technical solution, a second anti-slip texture is set to prevent hand slippage and facilitate the rotation of the fixing ring and the threaded ring.

[0018] The present invention is further configured such that a rubber sealing ring is embedded in the inner wall of the connector body.

[0019] By adopting the above technical solution and setting a rubber sealing ring, the sealing performance is improved.

[0020] The present invention is further configured such that: the number of fixed balls is four, and the four fixed balls are evenly distributed in a ring inside the connector body.

[0021] By adopting the above technical solution, the stability of the connection is improved by setting the number of fixed balls to four, and the four fixed balls are evenly distributed in a ring inside the connector body.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. This utility model moves the trapezoidal groove by moving the sliding cylinder, and the movement of the trapezoidal groove causes the steel ball to disengage from the snap-fit ​​groove, so that the connector can be removed. This method can facilitate assembly and disassembly, reduce workload, and improve work efficiency. Rotating the fixing ring changes the elastic force of the first spring, which can adjust the preload of the first spring and ensure the stability of the connection.

[0024] 2. This utility model achieves good waterproof performance by using a telescopic ring to drive the sealing gasket to press against the connector under the action of the second spring, thereby improving service life and ensuring connection stability. Combined with a rubber sealing ring, it further enhances the waterproof performance. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural view of the present invention;

[0026] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0027] Figure 3 This is a side sectional view of the structure of this utility model.

[0028] Reference numerals: 1. Connector body; 2. Connecting rod; 3. Connecting head; 4. Adjusting thread; 5. Retaining ring; 6. Slide cylinder; 7. First spring; 8. Trapezoidal groove; 9. Retaining ball; 10. Snap-fit ​​groove; 11. Telescopic ring; 12. Second spring; 13. Sealing gasket; 14. First anti-slip texture; 15. Threaded ring; 16. Second anti-slip texture; 17. Rubber sealing ring. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1:

[0031] refer to Figure 1 , Figure 2 and Figure 3 A waterproof SMA connector includes a connector body 1, a connecting rod 2 installed inside the connector body 1, a connector head 3 slidably sleeved on the inner wall of the connector body 1, and the connector head 3 is inserted into the connecting rod 2. An adjusting thread 4 is formed on the surface of the connector body 1, and a fixing ring 5 is threaded onto the surface of the adjusting thread 4. A sliding cylinder 6 is slidably sleeved on the surface of the connector body 1, and a first spring 7 is provided between the sliding cylinder 6 and the fixing ring 5. Multiple trapezoidal grooves 8 are formed on the inner wall of the sliding cylinder 6, and multiple fixing balls 9 are provided on the inner wall of the connector body 1. A snap-fit ​​groove 10 is formed on the surface of the connector head 3, and the snap-fit ​​groove 10 snaps into the fixing balls 9. By moving the sliding cylinder 6, the trapezoidal grooves 8 move, causing the steel balls to disengage from the snap-fit ​​groove 10, allowing the connector head 3 to be removed. This facilitates assembly and disassembly, reduces workload, and improves work efficiency. Rotating the fixing ring 5 changes the elastic force of the first spring 7, allowing adjustment of the preload of the first spring 7 and ensuring connection stability.

[0032] refer to Figure 2 The surface of the slide cylinder 6 is provided with a first anti-slip texture 14. By setting the first anti-slip texture 14, the hand slips and the slide cylinder 6 is moved easily.

[0033] refer to Figure 1 and Figure 2 The surface of the adjusting thread 4 is threaded with a threaded ring 15. By setting the threaded ring 15, the fixed ring 5 is fixed, thereby improving stability.

[0034] refer to Figure 3 The number of fixed balls 9 is four, and the four fixed balls 9 are evenly distributed in a ring inside the connector body 1. By setting the number of fixed balls 9 to four, and the four fixed balls 9 being evenly distributed in a ring inside the connector body 1, the stability of the connection is improved.

[0035] Example 2:

[0036] refer to Figure 2 A telescopic ring 11 is slidably sleeved on the inner wall of the connector body 1. A second spring 12 is provided between the telescopic ring 11 and the inner wall of the connector body 1. A sealing gasket 13 is adhered to the surface of the telescopic ring 11 and contacts the connector head 3. By having the telescopic ring 11 drive the sealing gasket 13 to press against the connector head 3 under the action of the second spring 12, the waterproof performance can be achieved, the service life can be improved, and the stability of the connection can be guaranteed. In conjunction with the rubber sealing ring 17, the waterproof performance is further improved.

[0037] refer to Figure 2 The sealing gasket 13 is made of fluororubber, which makes it durable and provides a good seal.

[0038] refer to Figure 1 The surfaces of the fixed ring 5 and the threaded ring 15 are provided with second anti-slip textures 16. By providing the second anti-slip textures 16, the hands are prevented from slipping and the fixed ring 5 and the threaded ring 15 are made easier to rotate.

[0039] refer to Figure 2 The connector body 1 has a rubber sealing ring 17 embedded in its inner wall. By setting the rubber sealing ring 17, the sealing performance is improved.

[0040] Brief description of the usage process: Move the slide cylinder 6, which in turn moves the trapezoidal groove 8. Then move the connector 3, which in turn moves the snap-fit ​​groove 10. The snap-fit ​​groove 10 moves and causes the steel ball to slide into the trapezoidal groove 8 and disengage from the snap-fit ​​groove 10. Remove the connector 3 to complete the disassembly. Insert the connector 3 into the connector body 1 and release the slide cylinder 6. Under the action of the first spring 7, the slide cylinder 6 drives the trapezoidal groove 8 to reset. The reset trapezoidal groove 8 pushes the fixed ball 9 to snap into the snap-fit ​​groove 10, fixing the connector 3 and completing the installation, thus achieving the purpose of easy assembly and disassembly. Under the action of the second spring 12, the telescopic ring 11 drives the sealing gasket 13 to press against the connector 3. When the sealing gasket 13 deforms, the second spring 12 automatically compensates for it. Together with the rubber sealing ring 17, the connection is sealed, thus achieving good waterproof performance.

[0041] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A waterproof SMA connector, comprising a connector body (1), characterized in that, The connector body (1) is equipped with a connecting rod (2) inside. The connector body (1) is slidably fitted with a connector head (3) on its inner wall, and the connector head (3) is inserted into the connecting rod (2). The surface of the connector body (1) is provided with an adjusting thread (4). The surface of the adjusting thread (4) is threaded with a fixing ring (5). The surface of the connector body (1) is slidably fitted with a slide cylinder (6). A first spring (7) is provided between the slide cylinder (6) and the fixing ring (5). The inner wall of the slide cylinder (6) is provided with multiple trapezoidal grooves (8). The inner wall of the connector body (1) is provided with multiple fixing balls (9). The surface of the connector head (3) is provided with a snap-fit ​​groove (10), and the snap-fit ​​groove (10) snaps into the fixing balls (9).

2. The SMA connector with good waterproof performance according to claim 1, characterized in that, A telescopic ring (11) is slidably sleeved on the inner wall of the connector body (1). A second spring (12) is provided between the telescopic ring (11) and the inner wall of the connector body (1). A sealing gasket (13) is adhered to the surface of the telescopic ring (11), and the sealing gasket (13) is in contact with the connector head (3).

3. The SMA connector with good waterproof performance according to claim 1, characterized in that, The surface of the slide (6) is provided with a first anti-slip texture (14).

4. The SMA connector with good waterproof performance according to claim 1, characterized in that, The surface of the adjusting thread (4) is threaded with a threaded ring (15).

5. The SMA connector with good waterproof performance according to claim 2, characterized in that, The sealing gasket (13) is made of fluororubber.

6. The SMA connector with good waterproof performance according to claim 4, characterized in that, The surfaces of both the fixed ring (5) and the threaded ring (15) are provided with a second anti-slip texture (16).

7. The SMA connector with good waterproof performance according to claim 1, characterized in that, A rubber sealing ring (17) is embedded in the inner wall of the connector body (1).

8. The SMA connector with good waterproof performance according to claim 1, characterized in that, The number of fixed balls (9) is four, and the four fixed balls (9) are evenly distributed in a ring inside the connector body (1).

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