CN111755909A

CN111755909A - Short-circuit connector

Info

Publication number: CN111755909A
Application number: CN202010699855.3A
Authority: CN
Inventors: 曾晓丹
Original assignee: Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2020-10-09

Abstract

The invention belongs to the technical field of test plugs, and particularly discloses a short-circuit connector which comprises a connecting part, a plug-in and at least two fixing structures. The connecting portion has a connection port and a plurality of constant head tanks, and the connection port is connected with the joint. The inner wall of the connecting port is annularly provided with a bending structure and is encircled with the bending structure to form a first waterproof groove, and the groove bottom of the first waterproof groove is provided with a second waterproof groove. The joint is provided with a first plug-in component matched with the first waterproof groove, a second plug-in component is convexly arranged on the first plug-in component, the first plug-in component is inserted into the first waterproof groove, and the second plug-in component is inserted into the second waterproof groove. The short circuit terminal comprises an insulating column and a contact pin which are connected, the insulating column is detachably connected with the corresponding positioning groove in an inserting mode, and the contact pin can be connected with the terminal box in an inserting mode. The fixed structure is detachably arranged on the connecting part, and the at least two fixed structures are arranged oppositely and abut against the corresponding insulating columns. The positioning accuracy and the stability of short circuit terminal have been improved for short circuit connector possesses good waterproof sealing effect.

Description

Short-circuit connector

Technical Field

The invention relates to the technical field of test plugs, in particular to a short-circuit connector.

Background

In the process of power production and test, a short-circuit connector is needed to be used for reliably short-circuiting a circuit so as to ensure the safety of electrical equipment and personnel.

The common short-circuit connector has the short-circuit terminal which is installed on the short-circuit connector in a threaded connection mode, and is poor in stability and positioning accuracy. When the short circuit terminal is inserted into the port of the external short circuit box, the short circuit terminal collides with the short circuit box or is influenced by external force, the short circuit terminal easily rotates and moves along the axial direction of the short circuit terminal, and the positioning precision is poor, so that the lengths of the plurality of short circuit terminals extending out of the short circuit connector are inconsistent, and the short circuit terminal and the short circuit box are partially connected in a virtual mode. Simultaneously, install limit structure's short circuit terminal and take place to rotate the back, mismatch with the port of terminal box, the installation difficulty needs to adjust, wastes time and energy.

Secondly, the conventional short-circuit connector is generally not provided with a waterproof sealing structure, and cannot be used in a service environment with higher protection level requirements, so that the application range of the short-circuit connector is limited, and the safety performance of the short-circuit connector is reduced.

Therefore, a shorting connector is needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a short-circuit connector, which can prevent a short-circuit terminal from rotating or moving, improve the stability and positioning accuracy of the short-circuit terminal and enable the short-circuit terminal to have a waterproof sealing function.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a shorting connector comprising:

a connection portion having a connection port and a plurality of positioning grooves, the connection port being connected with a joint; the inner wall of the connecting port is annularly provided with a bending structure, and the bending structure are jointly encircled to form a first waterproof groove, and the bottom of the first waterproof groove is provided with a second waterproof groove; the joint is provided with a first plug-in component matched with the first waterproof groove, a second plug-in component is convexly arranged on the first plug-in component, the first plug-in component is plugged in the first waterproof groove, and the second plug-in component is plugged in the second waterproof groove;

the short-circuit terminal comprises an insulation column and a contact pin which are connected, the insulation column is detachably inserted into the corresponding positioning groove, and the contact pin can be inserted into the terminal box;

at least two fixed knot construct, fixed knot construct detachably install in connecting portion, at least two fixed knot construct and set up relatively, and support to press in corresponding insulating column.

Preferably, a first step surface is formed between the first insert and the second insert; when the second plug-in is plugged in the second waterproof groove, the first step surface abuts against the groove bottom of the first waterproof groove.

Preferably, a sealing gasket is laid on the inner wall of the second waterproof groove.

Preferably, the insulating column comprises a first column body and a second column body which are coaxially connected, and a second step surface is formed between the first column body and the second column body; when the first column body is inserted into the corresponding positioning groove, at least two fixing structures are pressed against the periphery of the second column body and against the second step surface.

Preferably, the insulating column is a square column.

Preferably, the number of the fixing structures is four, and each fixing structure is pressed against one corresponding side of the insulating column.

Preferably, the contact pin is hinged with a limiting frame in the circumferential direction of the contact pin, and a limiting block which can be matched with the short interface of the terminal box is arranged on the limiting frame.

Preferably, a spring is installed between the limiting frame and the contact pin, one end of the spring is connected with the limiting frame, and the other end of the spring is connected with the contact pin.

Preferably, the limiting frame and the contact pin are provided with positioning columns, and two ends of the spring are respectively sleeved on the positioning columns of the limiting frame and the contact pin.

Preferably, the number of the limiting frames is two, and the two limiting frames are arranged oppositely.

The invention has the beneficial effects that:

the invention provides a short-circuit connector which comprises a connecting part, a short-circuit terminal and at least two fixing structures arranged on the connecting part. Insulating column detachably on the short circuit terminal pegs graft in the constant head tank that corresponds on connecting portion, and two at least fixed knot construct and set up relatively, and support and press in the insulating column that corresponds. The relative position of connecting portion and short circuit terminal has been locked, has avoided the short circuit terminal to take place to rotate and/or remove for connecting portion, has improved the positioning accuracy and the stability of short circuit terminal.

Meanwhile, the first plug-in unit of the connector is inserted into the first waterproof groove of the connecting port, the second plug-in unit is inserted into the second waterproof groove in the first waterproof groove, and through the first resealing structure formed by the first plug-in unit and the first waterproof groove and the second resealing structure formed by the second plug-in unit and the second waterproof groove, the double sealing between the connector and the connecting port is realized, so that the short-circuit connector has a good waterproof sealing effect.

Drawings

Fig. 1 is a cross-sectional view of a shorting connector according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view of a connection portion according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is a perspective view of a portion of a joint provided in accordance with an embodiment of the present invention;

FIG. 6 is a schematic end view of a fixing structure and an insulating post according to an embodiment of the present invention;

fig. 7 is a perspective view of a shorting terminal according to an embodiment of the present invention.

The component names and designations in the drawings are as follows:

1. a connecting portion; 11. a connection port; 111. a bending structure; 110. a first waterproof groove; 120. a second waterproof groove; 12. positioning a groove;

2. a joint; 21. a first plug-in; 22. a second plug-in; 23. a first step surface;

3. a shorting terminal; 31. an insulating column; 311. a first column; 312. a second cylinder; 313. a second step surface; 32. inserting a pin; 321. a body; 322. a conductive barrel; 320. a positioning column; 323. a limiting frame; 3231. a limiting block; 324. a spring; 4. and (5) fixing the structure.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

As shown in fig. 1 to 4, the present embodiment discloses a shorting connector including a connecting portion 1, a shorting terminal 3, and at least two fixing structures 4. The connection portion 1 has a connection port 11 and a plurality of positioning grooves 12, and the connector 2 is connected to the connection port 11. The inner wall of the connection port 11 is annularly provided with a bending structure 111, and the bending structure 111 and the first waterproof groove 110 are surrounded to form a first waterproof groove 110, and a second waterproof groove 120 is arranged at the bottom of the first waterproof groove 110. The connector 2 has a first plug-in 21 adapted to the first waterproof groove 110, the first plug-in 21 is provided with a second plug-in 22 in a protruding manner, the first plug-in 21 is inserted into the first waterproof groove 110, and the second plug-in 22 is inserted into the second waterproof groove 120. The shorting terminal 3 comprises an insulating column 31 and a pin 32 which are connected, the insulating column 31 is detachably inserted into the corresponding positioning groove 12, and the pin 32 can be inserted into a terminal box (not shown). The fixing structures 4 are detachably mounted on the connecting portion 1, and at least two fixing structures 4 are oppositely disposed and abut against the corresponding insulating columns 31.

In this embodiment, insulating column 31 detachably on the short circuit terminal 3 is pegged graft in the constant head tank 12 that corresponds on connecting portion 1, and two at least fixed knot construct 4 and set up relatively, and support and press in the insulating column 31 that corresponds, has locked connecting portion 1 and short circuit terminal 3's relative position, has avoided short circuit terminal 3 to take place to rotate and/or remove for connecting portion 1, has improved short circuit terminal 3's positioning accuracy and stability.

Meanwhile, first insert 21 of connector 2 is inserted into first watertight groove 110 of connection port 11, and second insert 22 is inserted into second watertight groove 120 located in first watertight groove 110. Through the first reseal structure formed by the first plug-in unit 21 and the first waterproof groove 110 and the second reseal structure formed by the second plug-in unit 22 and the second waterproof groove 120, the double sealing between the connector 2 and the connection port 11 is realized, so that the short-circuit connector has a good waterproof sealing effect.

Specifically, the first insert 21 is parallel to the axis of the joint 2 and extends along the axis of the joint 2. The end of the first insert 21 is provided with a second insert 22, and the first insert 21 is arranged around the connector 2. It should be noted that the thickness of the first plug-in unit 21 is equal to the width of the first waterproof groove 110, that is, the first plug-in unit 21 and the first waterproof groove 110 can realize a gapless plug-in fit, so that the waterproof effect is improved.

As shown in fig. 2 to 5, a first step surface 23 is formed between the first insert 21 and the second insert 22. When the second plug-in 22 is plugged into the second waterproof groove 120, the first step surface 23 abuts against the groove bottom of the first waterproof groove 110, which is beneficial to improving the waterproof effect and the sealing performance of the short-circuit connector. Meanwhile, the first and second heavy sealing structures are separated, so that the influence on the waterproof effect of the second heavy sealing structure when the first heavy sealing structure fails is avoided.

Preferably, a sealing gasket (not shown) is laid on the inner wall of the second waterproof groove 120. The sealing gasket is arranged between the second plug-in connector and the second waterproof groove 120, and when the second plug-in connector 22 is plugged in the second waterproof groove 120, the sealing gasket is extruded, so that the fit clearance between the second plug-in connector 22 and the second waterproof groove 120 is reduced, and the waterproof effect of the second resealing structure is further improved.

As shown in fig. 1 and 7, the insulating column 31 includes a first column 311 and a second column 312 coaxially connected to each other, and a second step surface 313 is formed between the first column 311 and the second column 312. When the first column 311 is inserted into the corresponding positioning groove 12, the at least two fixing structures 4 are pressed against the outer periphery of the second column 312 and against the second step surface 313. The size that insulating column 31 stretched into constant head tank 12 has been injectd, has guaranteed that every short circuit terminal 3 stretches out short circuit connector's length unanimity, has avoided partial short circuit terminal 3 and short circuit box to take place virtual joint, has further improved short circuit terminal 3's positioning accuracy.

Specifically, the insulating column 31 is a stepped column composed of a first column 311 and a second column 312, and the cross-sectional area of the first column 311 is smaller than that of the second column 312. The cross-sectional area of the first cylinder 311 is smaller, so that the opening size of the positioning groove 12 matched with the first cylinder 311 is reduced, and the processing amount of the positioning groove 12 is reduced.

Preferably, the insulating column 31 is a square column, and the positioning groove 12 is correspondingly configured as a square groove. For circular post, square insulating column 31 is pegged graft in constant head tank 12, can not take place circumference rotation, is favorable to improving the positioning accuracy of short circuit terminal 3.

It is further preferred that the number of the fixing structures 4 is four, and each fixing structure 4 is pressed against a corresponding side of the corresponding insulating column 31. Because the insulating column 31 is square column, four fixed knot construct 4 two liang of relative settings in four sides of insulating column 31 for insulating column 31 has good stability, and its atress is more even moreover. In the present embodiment, the number of shorting terminals 3 is three, and the number of the fixing mechanisms 4 is twelve, and every four fixing structures 4 jointly fix the insulating column 31 of one shorting terminal 3.

As shown in fig. 1 and 6, the fixing structure 4 has an L-shaped longitudinal section and is screwed to the connecting portion 1. Fixed knot constructs 4 detachably connects on connecting portion 1, can increase or reduce the quantity of short circuit terminal 3 according to the short circuit demand, improves short connector's suitability.

As shown in fig. 1 and 7, the pin 32 is hinged to a limiting frame 323 in the circumferential direction, and a limiting block 3231 capable of being matched with the short-circuit port of the terminal box is arranged on the limiting frame 323.

Specifically, the pin 32 includes a body 312 and a conductive barrel 322 connected to the body 312. The limiting frame 323 is movably hinged to the conductive tube 322, and the limiting frame 323 is matched with the outer side of the conductive tube 322, so that the limiting frame 323 can be completely attached to the conductive tube 322.

Preferably, a spring 324 is installed between the limiting frame 323 and the insertion pin 32, one end of the spring 324 is connected to the limiting frame 323, and the other end is connected to the insertion pin 32. Specifically, the positioning posts 320 are disposed on both the position-limiting frame 323 and the inserting pin 32, and two ends of the spring 324 are respectively sleeved on the positioning posts 320 of the position-limiting frame 323 and the inserting pin 32. When the body 312 of contact pin 32 and the short circuit mouth short circuit of short circuit box, stopper 3231 can with the inner wall block of the short circuit mouth of short circuit box, strengthened the fastening degree that contact pin 32 and short circuit box are connected, avoid contact pin 32 to drop from the short circuit box, take place danger. The limiting block 3231 improves the friction between the contact pin 32 and the short circuit box under the action of the restoring force of the spring 324, and further improves the stability of the contact pin 32.

Preferably, the number of the position limiting frames 323 is two, and the two position limiting frames 323 are arranged oppositely. The two limiting frames 323 are oppositely arranged along the circumferential direction of the contact pin 32, so that the number of the limiting frames 323 is simplified, and the stable connection between the contact pin 32 and the short-circuit box is ensured. Of course, the number of the limiting frames 323 can be one, three or more.

It should be noted that the stopper 3231 is preferably a rubber block having elasticity. The limiting block 3231 is slightly deformed after being extruded, so that the contact pin 32 can be rapidly inserted and connected conveniently. The specific structure and size of the stop block 3231 are determined by the specific structure of the inner wall of the short interface of the shorting box, and are not limited herein.

Example two

The short-circuit connector disclosed in this embodiment has substantially the same structure as the short-circuit connector in the first embodiment, except that:

the insulating column 31 of the shorting terminal 3 is formed by a plurality of coaxial columns connected together. In the arrangement direction of the insulating cylinder 31, the conductive cylinder 322, and the body 312, the areas of the radial cross sections of the plurality of cylindrical bodies gradually increase, and a stepped axis is formed. The insulating column 31 is provided with a plurality of second step surfaces 313 capable of being abutted to the fixing structures 4, and according to different short circuit requirements, only the short circuit terminal 3 needs to be inserted into the positioning groove 12 on the selected connecting part 1, and one of the second step surfaces 313 on the insulating column 13 is abutted to the fixing structure 4 on the connecting part 1 so as to assemble and form the required short circuit connector.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A shorting connector, comprising:

a connection part (1), the connection part (1) having a connection port (11) and a plurality of positioning grooves (12), the connection port (11) being connected with a joint (2); a bending structure (111) is annularly arranged on the inner wall of the connecting port (11), and the bending structure (111) and the inner wall of the connecting port form a first waterproof groove (110) in a surrounding manner, and a second waterproof groove (120) is arranged at the bottom of the first waterproof groove (110); the joint (2) is provided with a first plug-in piece (21) matched with the first waterproof groove (110), a second plug-in piece (22) is arranged on the first plug-in piece (21) in a protruding mode, the first plug-in piece (21) is connected to the first waterproof groove (110) in an inserting mode, and the second plug-in piece (22) is connected to the second waterproof groove (120) in an inserting mode;

the short-circuit terminal (3) comprises an insulation column (31) and a contact pin (32) which are connected, the insulation column (31) is detachably inserted into the corresponding positioning groove (12), and the contact pin (32) can be inserted into the terminal box;

the fixing structures (4) are detachably mounted on the connecting portion (1), and the fixing structures (4) are oppositely arranged and abut against the corresponding insulating columns (31).

2. A shorting connector according to claim 1, wherein the first insert (21) and the second insert (22) form a first step face (23) therebetween; when the second plug-in component (22) is plugged into the second waterproof groove (120), the first step surface (23) abuts against the groove bottom of the first waterproof groove (110).

3. A short-circuiting connector according to claim 1, characterised in that the inner wall of the second watertight channel (120) is laid with a sealing gasket.

4. The shorting connector according to claim 1, wherein the insulating post (31) comprises a first post (311) and a second post (312) coaxially connected, the first post (311) and the second post (312) forming a second step surface (313) therebetween; when the first column (311) is inserted into the corresponding positioning groove (12), at least two fixing structures (4) are pressed against the periphery of the second column (312) and abut against the second step surface (313).

5. A shorting connector according to claim 1, wherein the insulating posts (31) are square posts.

6. A short-circuiting connector according to claim 5, characterised in that said fixing structures (4) are four in number, each of said fixing structures (4) being pressed against a respective side of a corresponding one of said insulating columns (31).

7. The shorting connector according to claim 1, wherein the contact pin (32) is hinged with a limiting frame (323) in the circumferential direction, and a limiting block (3231) capable of being matched with the short interface of the terminal box is arranged on the limiting frame (323).

8. The shorting connector according to claim 7, wherein a spring (324) is mounted between the limiting frame (323) and the inserting pin (32), one end of the spring (324) is connected to the limiting frame (323) and the other end is connected to the inserting pin (32).

9. The shorting connector according to claim 8, wherein the position-limiting frame (323) and the inserting pin (32) are provided with positioning posts (320), and two ends of the spring (324) are respectively sleeved on the positioning posts (320) of the position-limiting frame (323) and the inserting pin (32).

10. The shorting connector according to claim 8, wherein the number of the limiting frames (323) is two, and the two limiting frames (323) are oppositely arranged.