Elastic contact connector suitable for attenuator

Abstract

The elastic contact connector comprises an elastic connector body and an attenuator body arranged on one side of the elastic connector body, double-face threaded butt joints are installed on the outer walls of the two sides of the attenuator body, and second pins are installed at the centers of the interiors of the double-face threaded butt joints. A supporting ring is fixed to the end, close to the double-face thread butt joint, of the elastic connector body, a first pin is installed in the supporting ring, and a double-thread connecting structure screwed with the double-face thread butt joint is installed on the outer wall of one side of the supporting ring. By increasing the number of the sealing surfaces, the sealing performance of the joint connecting part is improved, permeation of external media is effectively reduced, and the phenomena of joint oxidation, moisture and the like are prevented, so that internal elements of the attenuator are better protected, and the service life of the attenuator is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of attenuator connectors, in particular to an elastic contact connector suitable for attenuators. Background Art

[0002] An attenuator is a device used to control and reduce signal strength. It is usually used to adjust the optical signal strength in optical fiber communication systems. The contact connector is an important component of the attenuator. Its function is to connect the attenuator to the optical fiber equipment and provide adjustable signal attenuation. The elastic contact connector consists of inner and outer sleeves, rubber pads, bolts and nuts. Its structure is exquisitely designed and can effectively absorb and disperse energy, thereby reducing the impact of vibration and shock on the equipment.

[0003] For example, an elastic contact connector suitable for an attenuator disclosed in the authorization announcement number CN219696691U includes a main body, an inner conductor, a contact head and a spring, wherein the tail of the main body has a mounting blind hole; the inner conductor is fixedly arranged in the mounting blind hole, and a connecting hole is arranged on the tail end face of the inner conductor; the contact head is arranged in the connecting hole, and a spring is arranged between the inner end face of the contact head and the bottom face of the connecting hole, and the elastic connection is achieved through the elasticity of the spring, which not only meets the elasticity requirements but also meets the connection stability. However, in this technical solution, when the elastic contact connector is connected to the joint of the attenuator, a single-stage threaded screwing structure is generally used for connection. At this time, the sealing surface between the joint of the attenuator and the elastic contact connector is relatively small, and the reliability of the single-stage threaded connection structure is affected by the loosening of the connecting thread and the wear of the thread. Once the connection is loose or the thread is worn, the connection will become unreliable. At this time, the connecting part is easily affected by the external environment, resulting in moisture and oxidation of the joint, thereby affecting the performance and life of the attenuator. Summary of the invention

[0004] The object of the present invention is to provide an elastic contact connector suitable for an attenuator, which adopts a double-threaded connection structure to connect with the joint of the attenuator to form at least two sealing surfaces, thereby solving the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an elastic contact connector suitable for an attenuator, comprising an elastic connector body and an attenuator body arranged on one side of the elastic connector body, double-sided threaded joints are installed on the outer walls of both sides of the attenuator body, a second pin is installed at the center position inside the double-sided threaded joint, a support ring is fixed to one end of the elastic connector body close to the double-sided threaded joint, and a first pin is installed inside the support ring, a double-threaded connection structure screwed with the double-sided threaded joint is installed on the outer wall of one side of the support ring, a docking sleeve for plugging with a sleeve is installed at the end of the elastic connector body on one side of the first pin, and an elastic contact structure for connecting the first pin and the second pin is installed inside the docking sleeve.

[0006] Preferably, the double-threaded connection structure includes an internal threaded sleeve and an external threaded sleeve fixed at one end of the elastic connector body, the internal threaded sleeve cooperates with the outer wall thread of the double-sided threaded joint, and the external threaded sleeve cooperates with the inner wall thread of the double-sided threaded joint.

[0007] Preferably, an annular inner groove for plugging with the sleeve is provided inside the docking sleeve.

[0008] Preferably, the elastic contact structure includes a steel sleeve fixed inside the docking tube, and a guide ring installed at the center position inside the steel sleeve, a center pin is slidably installed inside the guide ring, both ends of the center pin pass through the outside of the guide ring, a top plate is fixed to one end of the center pin close to the double-sided threaded docking joint, and a coil spring is installed between the top plate and the guide ring.

[0009] Preferably, a tapered portion is provided at one end of the middle pin close to the first pin, and a retaining ring is installed at one end of the surface of the tapered portion.

[0010] Preferably, the center pin and the top plate move along the center axis direction of the first pin.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the elastic contact connector suitable for the attenuator is provided with a double-threaded connection structure and a double-sided threaded butt joint and other structures that cooperate with each other. After assembly, two sealing surfaces are formed between the elastic connector body and the double-sided threaded butt joint through the double-threaded connection structure, and the sleeve enters into the butt joint. The sleeve and the butt joint form a third sealing surface on the outside of the second pin. The connector increases the number of sealing surfaces, improves the sealing of the joint connection part, effectively reduces the penetration of external media, and prevents the oxidation and moisture of the joint, thereby better protecting the internal components of the attenuator and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1The three-dimensional structure diagram of the connection state of the elastic connector body and the attenuator body of the present invention is shown in FIG. Figure 1 ;

[0013] Figure 2 The three-dimensional structure diagram of the connection state of the elastic connector body and the attenuator body of the present invention is shown in FIG. Figure 2 ;

[0014] Figure 3 The three-dimensional structure diagram of the connection state of the elastic connector body and the attenuator body of the present invention is shown in FIG. Figure 3 ;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the elastic connector body of the present invention;

[0016] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the elastic connector body of the present invention;

[0017] In the figure: 1. elastic connector body; 101. first pin; 2. attenuator body; 3. double-sided threaded connector; 301. sleeve; 302. second pin; 4. support ring; 5. double-threaded connection structure; 501. internal thread sleeve; 502. external thread sleeve; 6. docking sleeve; 601. annular inner groove; 7. steel sleeve; 8. elastic contact structure; 801. guide ring; 802. center pin; 803. top plate; 804. spiral spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-5 , an embodiment of the present invention: an elastic contact connector suitable for an attenuator, comprising an elastic connector body 1 and an attenuator body 2 arranged on one side of the elastic connector body 1, double-sided threaded joints 3 are installed on both sides of the outer walls of the attenuator body 2, a second pin 302 is installed at the center position inside the double-sided threaded joint 3, a support ring 4 is fixed to one end of the elastic connector body 1 close to the double-sided threaded joint 3, and a first pin 101 is installed inside the support ring 4, and a double-threaded connection structure 5 screwed with the double-sided threaded joint 3 is installed on the outer wall of one side of the support ring 4;

[0020] The end of the elastic connector body 1 on one side of the first pin 101 is provided with a docking sleeve 6 for plugging with the sleeve 301. The interior of the docking sleeve 6 is provided with an annular inner groove 601 for plugging with the sleeve 301. The sleeve 301 is docked into the annular inner groove 601 of the docking sleeve 6. At this time, the docking sleeve 6 and the sleeve 301 form a third sealing surface.

[0021] The interior of the docking sleeve 6 is provided with an elastic contact structure 8 for connecting the first pin 101 and the second pin 302. The second pin 302 in the double-sided threaded docking joint 3 forces the elastic contact structure 8 to act until the second pin 302 is overlapped with the first pin 101 through the elastic contact structure 8, so that the elastic connector body 1 and the double-sided threaded docking joint 3 are electrically connected, and then the external electrical signal is connected to the attenuator body 2 through the elastic connector body 1 and the double-sided threaded docking joint 3;

[0022] The double-threaded connection structure 5 includes an internal thread sleeve 501 and an external thread sleeve 502 fixed at one end of the elastic connector body 1. The internal thread sleeve 501 cooperates with the outer wall thread of the double-sided threaded joint 3, and the external thread sleeve 502 cooperates with the inner wall thread of the double-sided threaded joint 3. When the double-threaded connection structure 5 and the double-sided threaded joint 3 are connected, the internal thread sleeve 501 and the external thread sleeve 502 are threadedly matched with the inner and outer wall thread grooves of the double-sided threaded joint 3 respectively. The setting of the two thread surfaces simultaneously enhances the stability of the joint connection part, reducing the unreliability caused by loose connection or thread wear;

[0023] The elastic contact structure 8 includes a steel sleeve 7 fixed inside the docking tube 6, and a guide ring 801 installed at the center position inside the steel sleeve 7. A center pin 802 is slidably installed inside the guide ring 801. Both ends of the center pin 802 penetrate the outside of the guide ring 801. A top plate 803 is fixed to one end of the center pin 802 close to the double-sided threaded docking joint 3. A spiral spring 804 is installed between the top plate 803 and the guide ring 801.

[0024] When the elastic connector body 1 is screwed close to the double-sided threaded connector 3, the end of the second pin 302 will constantly force the top plate 803 and the middle pin 802 to move backward, that is, the middle pin 802 moves toward the first pin 101 until the middle pin 802 and the first pin 101 are in contact. At this time, the spiral spring 804 is squeezed and deformed by the guide ring 801 and the top plate 803, and then the first pin 101, the middle pin 802, the top plate 803, and the second pin 302 are connected in sequence, thereby ensuring good contact between the pins, ensuring the stability and reliability of the connection, and making the electrical signal transmission more stable;

[0025] A conical portion is provided at one end of the center pin 802 close to the first pin 101, and a retaining ring is installed at one end of the surface of the conical portion. The center pin 802 and the top plate 803 move along the central axis direction of the first pin 101. When the elastic connector body 1 and the double-sided threaded connector 3 are separated, the spiral spring 804 separates the center pin 802 and the first pin 101, thereby disconnecting the transmission route of the electrical signal.

[0026] When the embodiment of the present application is used, the staff first takes out the elastic connector body 1 and the attenuator body 2 to be connected, so that the elastic connector body 1 and the double-sided threaded joint 3 are concentric and opposite, and then the double-sided threaded joint 3 is screwed with the double-sided threaded joint 3 by using the double-threaded connection structure 5 until the double-sided threaded joint 3 and the double-threaded connection structure 5 are screwed into place. At this time, the elastic connector body 1, the support ring 4 and other components are constantly approaching the attenuator body 2 under the screwing operation. In this process, the second pin 302 in the double-sided threaded joint 3 forces the elastic contact structure 8 to act until the second pin 302 is overlapped with the first pin 101 through the elastic contact structure 8, so that the elastic connector The connector body 1 and the double-sided threaded connector 3 are electrically connected, and then the external electrical signal is connected to the attenuator body 2 through the elastic connector body 1 and the double-sided threaded connector 3. After assembly, two sealing surfaces are formed between the elastic connector body 1 and the double-sided threaded connector 3 through the double-threaded connection structure 5, and the sleeve 301 enters into the docking sleeve 6. The sleeve 301 and the docking sleeve 6 form a third sealing surface on the outside of the second pin 302. The connector increases the number of sealing surfaces to improve the sealing of the connector connection part, effectively reduce the penetration of external media, prevent the oxidation and moisture of the connector, thereby better protecting the internal components of the attenuator and extending its service life.

Claims

1. An elastic contact connector suitable for an attenuator, characterized in that: The invention comprises an elastic connector body (1) and an attenuator body (2) arranged on one side of the elastic connector body (1); double-sided threaded joints (3) are installed on the outer walls of both sides of the attenuator body (2); a second pin (302) is installed at the center position inside the double-sided threaded joint (3); a support ring (4) is fixed to one end of the elastic connector body (1) close to the double-sided threaded joint (3); a first pin (101) is installed inside the support ring (4); a double-threaded connection structure (5) screwed with the double-sided threaded joint (3) is installed on the outer wall of one side of the support ring (4); a docking sleeve (6) for plugging with a sleeve (301) is installed at the end of the elastic connector body (1) on the side of the first pin (101); an elastic contact structure (8) for connecting the first pin (101) and the second pin (302) is installed inside the docking sleeve (6).

2. The elastic contact connector suitable for attenuator according to claim 1, characterized in that: The double-threaded connection structure (5) comprises an internal threaded sleeve (501) and an external threaded sleeve (502) fixed to one end of the elastic connector body (1); the internal threaded sleeve (501) cooperates with the outer wall thread of the double-sided threaded joint (3); and the external threaded sleeve (502) cooperates with the inner wall thread of the double-sided threaded joint (3).

3. The elastic contact connector suitable for attenuator according to claim 1, characterized in that: The interior of the docking sleeve (6) is provided with an annular inner groove (601) for plugging with the sleeve (301).

4. The elastic contact connector suitable for attenuator according to claim 1, characterized in that: The elastic contact structure (8) comprises a steel sleeve (7) fixed inside the docking tube (6), and a guide ring (801) installed at the center position inside the steel sleeve (7), a center pin (802) is slidably installed inside the guide ring (801), both ends of the center pin (802) extend through the outside of the guide ring (801), a top plate (803) is fixed to one end of the center pin (802) close to the double-sided threaded docking joint (3), and a coil spring (804) is installed between the top plate (803) and the guide ring (801).

5. The elastic contact connector suitable for attenuator according to claim 4, characterized in that: The middle pin (802) is provided with a tapered portion at one end close to the first pin (101), and a retaining ring is installed at one end of the surface of the tapered portion.

6. The elastic contact connector suitable for attenuator according to claim 4, characterized in that: The middle pin (802) and the top plate (803) move along the central axis of the first pin (101).

Images