CN217956233U - Damping type SMA connector thread locking mechanism - Google Patents
Damping type SMA connector thread locking mechanism Download PDFInfo
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- CN217956233U CN217956233U CN202222372877.6U CN202222372877U CN217956233U CN 217956233 U CN217956233 U CN 217956233U CN 202222372877 U CN202222372877 U CN 202222372877U CN 217956233 U CN217956233 U CN 217956233U
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Abstract
The utility model provides a damping formula SMA connector screw thread locking mechanism, include: the outer part of the shell is provided with a two-stage annular step; one end of the first nut is rotatably arranged on the step surface of the first-stage annular ladder of the shell; the second nut is internally provided with an annular groove; the second nut is rotationally arranged on the step surface of the first-stage annular step of the shell, and the groove wall of the annular groove of the second nut is abutted against the step surface of the second-stage annular step of the shell; one end of the second nut is abutted against one end of the first nut, and the contact surfaces of the second nut and the first nut are provided with mutually matched bulges; the spring is sleeved on the first-stage annular ladder of the shell and is positioned in the cavity, and two ends of the spring are respectively connected with the second nut and the shell; a pin; rectangular logical groove has been seted up to second nut outer wall, and the pin passes rectangular logical groove, with shell fixed connection. The utility model discloses improved general self-locking connector and needed the drawback of manual institute's locking pin of opening, adopted the locking principle of damping formula to make the product reach self-locking function under stable condition.
Description
Technical Field
The utility model relates to a radio frequency coaxial connector technical field, concretely relates to damping formula SMA connector screw thread locking mechanism.
Background
The SMA radio frequency coaxial connector is usually an element which is connected on a cable or installed on an instrument, and is used as an element for electrically connecting or separating transmission lines. However, the conventional SMA self-locking connector cannot be automatically released after being locked, and needs to be manually operated and then removed, so that the installation space of a product is limited. Meanwhile, the use requirement of automatic loosening under specific conditions cannot be met.
At present, self-locking connectors on the market are mainly tooth locking type anti-loosening structures, threads can be loosened after locking of locking hanging pins, and the threads cannot be loosened on the premise of not damaging products when the locking hanging pins are not loosened.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a damping formula SMA connector screw thread locking mechanism has improved the drawback that general self-locking connector need manual locking pin of opening, adopts the locking principle of damping formula to make the product reach self-locking function under stable condition.
In order to achieve the above purpose, the utility model provides the following technical scheme.
A damped SMA connector thread locking mechanism comprising:
the outer part of the shell is provided with a two-stage annular step; the shell is sleeved on the SMA connector;
one end of the first nut is rotatably arranged on the step surface of the first-stage annular step of the shell, and the other end of the first nut is in threaded connection with the socket;
the second nut is internally provided with an annular groove; the second nut is rotatably arranged on the step surface of the first-stage annular ladder of the shell, and the groove wall of the annular groove of the second nut is abutted against the step surface of the second-stage annular ladder of the shell; one end of the second nut is abutted against one end of the first nut, and the contact surfaces of the second nut and the first nut are provided with mutually matched bulges; the annular groove, the shell and the first-stage annular step form a cavity;
the spring is sleeved on the first-stage annular step of the shell, is positioned in the cavity, is respectively connected with the second nut and the shell at two ends and is in a compressed state in a normal state;
a pin; the rectangular logical groove has been seted up to the second nut outer wall, the pin passes rectangular logical groove, with shell fixed connection.
Preferably, a first annular groove body is formed in the first nut; a snap ring is arranged in the annular groove body; and a corresponding second annular groove body is formed in the step surface of the first-level annular ladder of the shell, and the clamping ring is rotatably arranged in the second annular groove body.
Preferably, the angles between the two sides of the protrusions of the first nut and the second nut and the horizontal plane are respectively 30 degrees and 60 degrees.
The utility model discloses beneficial effect:
the utility model discloses improved general self-locking connector and needed the drawback of manual locking pin of opening, adopted the locking principle of damping formula to make the product reach self-locking function under stable condition, specifically applyed the resistance through spring and second nut to the first nut of being connected with the socket, realized the auto-lock. Meanwhile, the device reduces the requirement on the use space of the connector and also meets the requirement on automatic release by using a constant torque under specific conditions. The automatic falling-off function and the like can be realized through the matching tool. The device has the advantages of small volume, strong applicability, high reliability and the like.
Drawings
Fig. 1 is a schematic structural diagram of a thread locking mechanism of a damping SMA connector according to an embodiment of the present invention;
fig. 2 is a contact surface curve parameter of two nuts of a thread locking mechanism of a damping SMA connector according to an embodiment of the present invention.
In the figure, 1, a first nut; 2. a snap ring; 3. a housing; 4. a spring; 5. a second nut; 6. a pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A damped SMA connector thread locking mechanism, as shown in fig. 1-2, comprising: a housing 3, the exterior of which is a two-stage annular step; the shell is sleeved on the SMA connector;
one end of the first nut 1 is rotatably arranged on the step surface of the first-stage annular ladder of the shell 3, and the other end of the first nut is in threaded connection with the socket;
the second nut 5 is internally provided with an annular groove; the second nut 5 is rotationally arranged on the step surface of the first-stage annular ladder of the shell 3, and the groove wall of the annular groove of the second nut is abutted against the step surface of the second-stage annular ladder of the shell 3; one end of the second nut 5 is abutted with one end of the first nut 1, and the contact surfaces of the two are provided with mutually matched bulges, so that the rotating torque is increased when the two are tightly abutted; the annular groove forms a cavity with the housing 3 and the primary annular step.
The spring 4 is sleeved on the first-stage annular ladder of the shell 3 and is positioned in the cavity, and two ends of the spring are respectively connected with the second nut 5 and the shell 3; a pin 6; rectangular logical groove has been seted up to 5 outer walls of second nut, and pin 6 passes rectangular logical groove, with 3 fixed connection of shell, when it prevents 5 free rotation of second nut, allows the second nut 5 front and back small amplitude flexible.
Wherein, a first annular groove body is arranged inside the first nut 1; a snap ring 2 is arranged in the annular groove body; a corresponding second annular groove body is arranged on the step surface of the first-level annular ladder of the shell 3, and the clamping ring 2 is rotatably arranged in the second annular groove body. The above structure ensures that the first nut 1 freely rotates around the housing 3 and does not axially fall off.
The included angles between the two sides of the bulges of the first nut 1 and the second nut 5 and the horizontal plane are respectively 30 degrees and 60 degrees, so that the ratio of the tightening torque and the loosening torque between the nuts is ensured.
This structure through spring 4 and second nut 5 to the first nut 1 application resistance of being connected with the socket, realize the auto-lock, joint strength when increasing normal connection. When needs drop, only need to apply the moment of appointed scope to nut 1 and can realize the pine and take off, satisfied the demand that uses the automatic release of definite value moment under specific conditions, can realize functions such as automatic dropping through the matching tool. The nut 5 can be also pulled through a matching tool, so that the loosening of the small moment is realized. The device has the advantages of small volume, strong applicability, high reliability and the like.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. A damped SMA connector thread locking mechanism comprising:
a shell (3) with two-stage annular steps on the outside; the shell is sleeved on the SMA connector;
one end of the first nut (1) is rotatably arranged on the step surface of the first-stage annular ladder of the shell (3), and the other end of the first nut is in threaded connection with the socket;
the second nut (5) is internally provided with an annular groove; the second nut (5) is rotatably arranged on the step surface of the primary annular step of the shell (3), and the groove wall of the annular groove of the second nut is abutted against the step surface of the secondary annular step of the shell (3); one end of the second nut (5) is abutted against one end of the first nut (1), and the contact surfaces of the second nut and the first nut are provided with mutually matched bulges; the annular groove, the shell (3) and the first-stage annular ladder form a cavity;
the spring (4) is sleeved on the first-stage annular ladder of the shell (3) and is positioned in the cavity, two ends of the spring are respectively connected with the second nut (5) and the shell (3), and the spring is in a compressed state in a normal state;
a pin (6); rectangular logical groove has been seted up to second nut (5) outer wall, pin (6) pass rectangular logical groove, with shell (3) fixed connection.
2. The damping type SMA connector thread locking mechanism as recited in claim 1, wherein a first annular groove is formed inside the first nut (1); a snap ring (2) is arranged in the annular groove body; and a corresponding second annular groove body is formed in the step surface of the first-stage annular ladder of the shell (3), and the clamping ring (2) is rotatably arranged in the second annular groove body.
3. A damped SMA connector screw locking mechanism according to claim 1, wherein the angles of the two sides of the projection of the first nut (1) and the second nut (5) with the horizontal plane are 30 ° and 60 °, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222372877.6U CN217956233U (en) | 2022-09-07 | 2022-09-07 | Damping type SMA connector thread locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222372877.6U CN217956233U (en) | 2022-09-07 | 2022-09-07 | Damping type SMA connector thread locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217956233U true CN217956233U (en) | 2022-12-02 |
Family
ID=84211390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222372877.6U Active CN217956233U (en) | 2022-09-07 | 2022-09-07 | Damping type SMA connector thread locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217956233U (en) |
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2022
- 2022-09-07 CN CN202222372877.6U patent/CN217956233U/en active Active
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