CN212626396U

CN212626396U - SMA radio frequency connector with screw sleeve self-locking function

Info

Publication number: CN212626396U
Application number: CN202021968047.4U
Authority: CN
Inventors: 刘建
Original assignee: Yueqing Shengrong Electronic Co ltd
Current assignee: Yueqing Shengrong Electronic Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-02-26
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a SMA radio frequency connector with swivel nut self-locking function, including main joint, bayonet lock, vice joint, draw-in groove, thread bush, main ratchet and vice ratchet, the main joint upper end left and right sides is provided with the bayonet lock, and installs the contact pin in the middle of the main joint upper end, vice joint outside is seted up threadedly, and vice step lower surface that connects is provided with main ratchet, the connecting hole has been seted up in the middle of the vice joint, and the connecting hole inner wall left and right sides has seted up the draw-in groove, the dead ring is installed to the connecting hole upper end, and installs the intubate in the middle of the dead ring. The SMA radio frequency connector with the screw sleeve self-locking function is provided with the main ratchet and the auxiliary ratchet, the screw sleeve connects the main joint and the auxiliary joint together through the locking threads, and the reverse rotation of the screw sleeve in vibration is avoided through the matching between the main ratchet and the auxiliary ratchet, so that the self-locking function is realized, and the functionality of the device is increased.

Description

SMA radio frequency connector with screw sleeve self-locking function

Technical Field

The utility model relates to a radio frequency cable connection technical field specifically is a SMA radio frequency connector with swivel nut self-locking function.

Background

Along with the continuous development of scientific technology, electronic communication networks have all covered cities and rural areas in China, because the SMA radio frequency connector has the characteristics of wide frequency band, excellent performance, high reliability and long service life, the SMA frequency setting connector is required to be used for connecting a radio frequency cable and a microstrip line in radio frequency loops of various microwave equipment and digital communication systems, and when the SMA radio frequency connector is used in a plurality of vibration environments, the SMA radio frequency connector is required to have the functions of looseness prevention and self locking so as to avoid falling off and breaking when the SMA radio frequency connector is used in the vibration environments and influence on communication transmission.

Therefore, an SMA radio frequency connector with a screw sleeve self-locking function is provided so as to solve the problem that the SMA radio frequency connector provided in the above is loosened and falls off when being used in a vibration environment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a SMA radio frequency connector with swivel nut self-locking function to solve the SMA radio frequency connector on the existing market that above-mentioned background art provided and use the problem that can become flexible and drop in vibrations environment.

In order to achieve the above object, the utility model provides a following technical scheme: an SMA radio frequency connector with a thread sleeve self-locking function comprises a main joint, a clamping pin, an auxiliary joint, a clamping groove, a thread sleeve, a main ratchet and an auxiliary ratchet, wherein a sealing groove is formed in the upper surface of a step of the main joint, a sealing ring is installed in the sealing groove, the clamping pin is arranged on the left side and the right side of the upper end of the main joint, a contact pin is installed in the middle of the upper end of the main joint, locking threads are formed in the outer side of the auxiliary joint, the main ratchet is arranged on the lower surface of the step of the auxiliary joint, a plug is connected to the upper surface of the step of the auxiliary joint, a connecting hole is formed in the middle of the auxiliary joint, the clamping groove is formed in the left side and the right side of the inner wall of the connecting hole, an insulating ring is installed at the upper end of the connecting hole, an insertion pipe, and the thread bush is connected with the auxiliary joint through the locking thread on the outer side of the auxiliary joint.

Preferably, the central line of the main joint and the central line of the auxiliary joint are overlapped, and the central line of the main joint and the central line of the sealing ring are overlapped.

Preferably, the clamping units are two in number, the clamping units are symmetrical left and right relative to the center line of the main joint, and the diameter of each clamping unit is smaller than the width of each clamping groove.

Preferably, the central line of the insertion needle and the central line of the insertion tube are coincident with each other, and the diameter of the insertion needle is smaller than the inner diameter of the insertion tube.

Preferably, the central line of the threaded sleeve and the central line of the main joint are overlapped, and the inner diameter of the threaded sleeve is larger than the outer diameter of the step of the main joint.

Preferably, the direction of the main ratchet is opposite to the spiral direction of the locking thread, and the main ratchet and the auxiliary ratchet form a self-locking structure.

Compared with the prior art, the beneficial effects of the utility model are that: the SMA radio frequency connector with the screw sleeve self-locking function;

1. the clamping pin and the clamping groove are arranged, in the actual use process, the clamping groove is L-shaped, and after the clamping pin is inserted into the clamping groove, the clamping pin is rotated again to enable the clamping pin and the clamping groove to be buckled with each other, so that the main joint and the auxiliary joint are prevented from being loosened, the reliability after connection is improved, and the practicability of the device is improved;

2. the self-locking device is provided with the main ratchet and the auxiliary ratchet, in the actual use process, the threaded sleeve connects the main joint and the auxiliary joint together through the locking threads, and through the matching between the main ratchet and the auxiliary ratchet, the threaded sleeve is prevented from rotating reversely in the vibration, so that the self-locking function is realized, and the functionality of the device is improved.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is a schematic view of a left side cross-sectional structure of the auxiliary joint of the present invention;

fig. 3 is a schematic top view of the main joint of the present invention;

fig. 4 is a schematic view of the auxiliary joint of the present invention.

In the figure: 1. a main joint; 2. a seal ring; 3. a sealing groove; 4. a bayonet lock; 5. inserting a pin; 6. a secondary joint; 7. inserting a tube; 8. an insulating ring; 9. an elastic groove; 10. a plug; 11. a card slot; 12. a threaded sleeve; 13. a lock washer; 14. a primary ratchet; 15. a secondary ratchet; 16. locking the threads; 17. and connecting the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an SMA radio frequency connector with a screw sleeve self-locking function comprises a main joint 1, a sealing ring 2, a sealing groove 3, a clamping pin 4, a contact pin 5, an auxiliary joint 6, an insertion pipe 7, an insulating ring 8, an elastic groove 9, a plug 10, clamping grooves 11, a thread sleeve 12, a check washer 13, a main ratchet 14, an auxiliary ratchet 15, a locking thread 16 and a connecting hole 17, wherein the sealing groove 3 is formed in the upper surface of a step of the main joint 1, the sealing ring 2 is installed in the sealing groove 3, the clamping pins 4 are arranged on the left side and the right side of the upper end of the main joint 1, the contact pin 5 is installed in the middle of the upper end of the main joint 1, the locking thread 16 is arranged on the outer side of the auxiliary joint 6, the main ratchet 14 is arranged on the lower surface of the step of the auxiliary joint 6, the plug 10 is connected to the upper surface of the step of the auxiliary joint 6, and the middle of the insulating ring 8 is provided with an insertion pipe 7, the lower end of the insertion pipe 7 is provided with an elastic groove 9, the outer side of the main joint 1 is provided with a threaded sleeve 12, a lock washer 13 is arranged between the threaded sleeve 12 and the main joint 1, the upper end of the threaded sleeve 12 is provided with an auxiliary ratchet 15, and the threaded sleeve 12 is connected with the auxiliary joint 6 through a locking thread 16 on the outer side of the auxiliary joint 6.

The central line of the main joint 1 and the central line of the auxiliary joint 6 coincide with each other, and the central line of the main joint 1 and the central line of the sealing ring 2 coincide with each other, and by the structural design, when the main joint 1 and the auxiliary joint 6 are connected, the sealing ring 2 can achieve a sealing effect, so that the water is prevented from entering the joint and the use effect is prevented from being influenced.

Bayonet lock 4 is provided with two, and bayonet lock 4 is for the central line bilateral symmetry of owner's joint 1 to bayonet lock 4's diameter is less than the width of draw-in groove 11, and above-mentioned structural design is in the in-service use in-process, and the agility when being favorable to bayonet lock 4 to be connected with draw-in groove 11 has improved connection speed, has guaranteed the reliability of connecting simultaneously.

The central line of contact pin 5 and the central line of intubate 7 coincide each other, and the diameter of contact pin 5 is less than the internal diameter of intubate 7, above-mentioned structural design, in the in-service use, be favorable to contact pin 5 after inserting intubate 7, utilize the elasticity of elasticity groove 9 for intubate 7 presss from both sides tightly contact pin 5, improves the reliability of connecting.

The central line of the thread bush 12 coincides with the central line of the main joint 1, and the inner diameter of the thread bush 12 is larger than the outer diameter of the step of the main joint 1, and by the structural design, in the actual use process, when the thread bush 12 is connected and matched with the locking thread 16 on the outer side of the auxiliary joint 6, the interference between the thread bush 12 and the outer diameter of the main joint 1 is avoided, and the connection effect is influenced.

The direction of the main ratchet 14 is opposite to the spiral direction of the locking thread 16, and the main ratchet 14 and the auxiliary ratchet 15 form a self-locking structure.

The working principle is as follows: when the SMA radio frequency connector with the self-locking function of the screw sleeve is used, as shown in fig. 1 and 3, firstly, the sealing ring 2 is placed in the sealing groove 3, then the inserting pin 5 is inserted into the inserting tube 7, and the clamping pin 4 is inserted into the clamping groove 11, as shown in fig. 2, the clamping pin 4 is rotated by an angle, so that the clamping pin 4 and the clamping groove 11 are buckled with each other, and the main joint 1 and the auxiliary joint 6 are prevented from being separated, then, as shown in fig. 1 and 4, the screw sleeve 12 connects the main joint 1 and the auxiliary joint 6 together through the locking screw thread 16, and after the screw sleeve 12 is screwed, the main ratchet 14 and the auxiliary ratchet 15 are mutually clamped, so that the screw sleeve 12 is prevented from loosening, and self-locking is realized, and a series of work is completed, and the content not described in detail in this specification belongs to the prior art which is well known to.

It is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the present invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a SMA radio frequency connector with swivel nut self-locking function, includes main joint (1), bayonet lock (4), vice joint (6), draw-in groove (11), thread bush (12), main ratchet (14) and vice ratchet (15), its characterized in that: the sealing groove (3) is formed in the upper surface of the step of the main joint (1), the sealing ring (2) is installed in the sealing groove (3), the clamping pins (4) are arranged on the left side and the right side of the upper end of the main joint (1), the inserting needle (5) is installed in the middle of the upper end of the main joint (1), the locking thread (16) is formed in the outer side of the auxiliary joint (6), the main ratchet (14) is arranged on the lower surface of the step of the auxiliary joint (6), the plug (10) is connected to the upper surface of the step of the auxiliary joint (6), the connecting hole (17) is formed in the middle of the auxiliary joint (6), the clamping grooves (11) are formed in the left side and the right side of the inner wall of the connecting hole (17), the insulating ring (8) is installed at the upper end of the connecting hole (17), the inserting tube (7) is installed, and a check washer (13) is arranged between the threaded sleeve (12) and the main joint (1), an auxiliary ratchet (15) is arranged at the upper end of the threaded sleeve (12), and the threaded sleeve (12) is connected with the auxiliary joint (6) through a locking thread (16) on the outer side of the auxiliary joint (6).

2. The SMA radio frequency connector with the screw sleeve self-locking function as claimed in claim 1, wherein: the center line of the main joint (1) is overlapped with the center line of the auxiliary joint (6), and the center line of the main joint (1) is overlapped with the center line of the sealing ring (2).

3. The SMA radio frequency connector with the screw sleeve self-locking function as claimed in claim 1, wherein: the clamping pins (4) are arranged in two numbers, the clamping pins (4) are symmetrical left and right relative to the center line of the main joint (1), and the diameter of each clamping pin (4) is smaller than the width of each clamping groove (11).

4. The SMA radio frequency connector with the screw sleeve self-locking function as claimed in claim 1, wherein: the central line of the insertion needle (5) and the central line of the insertion tube (7) are overlapped, and the diameter of the insertion needle (5) is smaller than the inner diameter of the insertion tube (7).

5. The SMA radio frequency connector with the screw sleeve self-locking function as claimed in claim 1, wherein: the central line of the threaded sleeve (12) is superposed with the central line of the main joint (1), and the inner diameter of the threaded sleeve (12) is larger than the outer diameter of the step of the main joint (1).

6. The SMA radio frequency connector with the screw sleeve self-locking function as claimed in claim 1, wherein: the direction of the main ratchet (14) is opposite to the spiral direction of the locking screw thread (16), and the main ratchet (14) and the auxiliary ratchet (15) form a self-locking structure.