CN211428404U

CN211428404U - Plug pin applied to plug under high-power working condition

Info

Publication number: CN211428404U
Application number: CN202020111100.2U
Authority: CN
Inventors: 王文涛; 刘恩齐
Original assignee: Beijing Guorui Power Technology Co ltd
Current assignee: Beijing Guorui Power Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-09-04
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to a be applied to bolt for plug under high-power operating mode solves among the prior art bolt on the plug under high-power operating mode when contacting with the socket, the condition of the bolt appears burning to electric arc. The utility model provides a bolt includes bolt main part and expansion link, the expansion link coaxial line is installed inside the bolt main part, be equipped with the bellying along circumference at the expansion link outer wall, evenly seted up vertical narrow through-hole along circumference at the bolt main part and constitute grid-like structure, let grid-like structure inner wall be equipped with the arc recess that matches with the bellying along circumference, and the expansion link stretches out partly from the bolt main part, the bellying roll-off from the arc recess when the expansion link extension retracts into the bolt main part, and then radially expand the division with bolt main part. The utility model provides a bolt main part and socket cooperation when targetting in place bolt main part local radial expansion have guaranteed the stability of the contact of bolt and socket, have avoided simultaneously causing the condition appearance that the bolt burns because of contact failure.

Description

Plug pin applied to plug under high-power working condition

Technical Field

The utility model relates to a plug equipment technical field, concretely relates to be applied to bolt for plug under the high-power operating mode.

Background

In the prior art, the power distribution and transmission operation is needed in an industrial field, and a device used for completing the operation is a plug. The power distribution of the industrial field is high-power transmission and high in voltage level. The safety of current power distribution operation and the stability of the connection of the plug and the socket after the completion of the power distribution operation are important. However, the plug in the prior art is easy to have point contact when being matched with the socket, so that arc discharge is caused, and the plug pin on the plug is burnt. The surface of the bolt burnt by the electric arc is carbonized, and the carbonized surface of the bolt needs to be cleaned when the bolt is used again, so that the thickness of the bolt is reduced in the past, and poor contact is easily caused when the bolt is used. If the carbonization is serious, the plug needs to be replaced, which causes economic loss. Therefore, plugs applied in a high-power working condition environment are urgently needed to ensure the safety of industrial field power distribution and the stability of connection between power distribution components.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be applied to under the high-power operating mode, guarantee the stability of the contact of bolt and socket, avoid causing the bolt for the plug that the condition that the bolt burns appears because of contact failure.

For solving the above-mentioned problem that exists among the prior art, the utility model provides a pair of be applied to bolt for plug under high-power operating mode, including bolt main part and expansion link, the expansion link coaxial line is installed inside the bolt main part, and the expansion link outer wall is equipped with the bellying along circumference, the bolt main part is evenly seted up vertical narrow through-hole along circumference and is constituted grid-like structure, grid-like structure inner wall is equipped with the arc recess that matches with the bellying along circumference, the expansion link stretches out partly from the bolt main part, and the bellying roll-off radially rises to open the bolt main part from the arc recess when expansion link extension retracts in the bolt main part.

Further, the utility model relates to a be applied to bolt for plug under high-power operating mode, wherein, the bolt main part includes from last fixed part, inflation portion and the extension that sets up extremely down, fixed part and plug fixed connection, inflation portion are the grid column structure, the arc recess sets up on the inflation portion inner wall, it ends the shelves to be equipped with the annular on the inside wall between fixed part and the inflation portion, the annular end the shelves with the fixed part forms and ends the shelves cavity, the inflation pole includes from last backstop portion, connecting portion and the guide part that sets up extremely down, backstop portion installs end in the shelves cavity, the bellying sets up on connecting portion, the guide part with the extension phase-match stretches out in following the extension.

Further, the utility model relates to a be applied to bolt for plug under high-power operating mode, wherein, the bellying that sets up on the connecting portion is two, and the inflation portion corresponds position department with the bellying and sets up two arc recesses.

Further, the utility model relates to a be applied to bolt for plug under high-power operating mode, wherein, the cross-section of bellying adopts level and smooth curve, the camber of arc recess groove body is less than the camber of bellying cross-section curve, the arc recess adopts level and smooth curve transition with the inner wall junction of inflation portion.

Further, the utility model relates to a be applied to bolt for plug under high-power operating mode, wherein, the guide part lower part is equipped with the flange, flange periphery wall middle part is equipped with the draw-in groove along circumference, the external diameter of flange with the external diameter of connecting portion is the same, with the bottom of the socket of bolt main part adaptation is equipped with the blind hole, be equipped with in the blind hole with the bulge loop that the draw-in groove matches.

Further, the utility model relates to a be applied to bolt for plug under high-power operating mode, wherein, the expansion link is made by insulating material.

The utility model relates to a be applied to bolt for plug under high-power operating mode compares with prior art, has following advantage: the utility model discloses a bolt main part and expansion link, the expansion link coaxial line is installed inside the bolt main part, be equipped with the bellying along circumference at the expansion link outer wall, evenly seted up vertical narrow through-hole along circumference at the bolt main part and constitute grid-like structure, let grid-like structure inner wall be equipped with the arc recess that matches with the bellying along circumference, and the expansion link stretches out partly from the bolt main part, the bellying roll-off from the arc recess when the expansion link extension retracts in the bolt main part, and then radially expand the bolt main part and open. The plug pin has the advantages that the stability of contact between the plug pin and the socket is guaranteed through the structure, and meanwhile, the plug pin applied to the plug under a high-power working condition and caused by the fact that the plug pin is burnt due to poor contact is avoided. In practical application, the utility model discloses an initial condition does: the bulge that sets up on the expansion link is in the arc recess that the bolt main part inside wall set up to expansion link one end stretches out from the bolt main part. When the expansion rod is matched with the socket, the extension part of the expansion rod retracts into the plug pin main body, the bulge part slides out of the arc-shaped groove, the local part of the plug pin main body radially expands, and on the basis of the original matching with the socket, the connection between the plug pin main body and the socket is tighter, the connection strength between the plug pin main body and the socket is enhanced, and the problem of poor contact when the plug pin is matched with the socket is fundamentally solved.

The following describes the plug pin for a plug used under a high power operating condition in further detail with reference to the specific embodiments shown in the drawings.

Drawings

Fig. 1 is a schematic view of a plug pin for a plug according to the present invention, which is applied under a high power condition;

fig. 2 is a schematic view of a cross-sectional structure of a plug pin for a plug applied under a high-power working condition of the present invention;

fig. 3 is the utility model relates to a be applied to the change state structure sketch map of plug under high-power operating mode for the plug.

Detailed Description

As shown in fig. 1 and fig. 2 the utility model relates to a be applied to concrete implementation mode of plug under high-power operating mode for plug, including bolt main part 1 and

expansion link

2, 2 coaxial lines of expansion link are installed inside bolt main part 1, and expansion link 2 stretches out partly from bolt main part 1, be equipped with bellying 20 along circumference at 2 outer walls of expansion link, evenly set up vertical narrow through-hole along circumference at bolt main part 1 and constitute grid-shaped structure, grid-shaped structure inner wall is equipped with the arc recess 10 that matches with bellying 20 along circumference, bellying 20 roll-off from arc recess 10 when expansion link 2 extension withdrawal bolt main part 1, and then with the local radial expansion of bolt main part 1, act not influenced in bolt main part 1 under 2 electrified circumstances in order to guarantee that expansion link 2 is electrified, make expansion link 2 by insulating material. The plug pin has the advantages that the stability of contact between the plug pin and the socket is guaranteed through the structure, and meanwhile, the plug pin applied to the plug under a high-power working condition and caused by the fact that the plug pin is burnt due to poor contact is avoided.

In practical application, the utility model discloses an initial condition does: the bulge 20 arranged on the expansion rod 2 is positioned in the arc-shaped groove 10 arranged on the inner side wall of the bolt body 1, and one end of the expansion rod 2 extends out of the bolt body 1. As shown in fig. 3, when the plug pin body 1 is matched with the socket, the extending part of the expansion rod 2 retracts into the plug pin body 1, the bulge part 20 slides out of the arc-shaped groove 10 to expand the plug pin body 1 locally in the radial direction (i.e. the grid-shaped structure expands along the radial direction of the plug pin body 1), on the basis of the original matching with the socket, the connection between the plug pin body 1 and the socket is more tightly avoided forming point contact, the connection strength between the plug pin body 1 and the socket is enhanced, and the problem of poor contact when the plug pin body 1 is matched with the socket is fundamentally solved.

As specific implementation mode, the utility model provides a bolt main part 1 includes from last fixed part 11, inflation portion 12 and the extension 13 that sets up extremely down, fixed part 11 be used for with plug fixed connection, inflation portion 12 is grid-shaped structure, and arc recess 10 sets up on inflation portion 12 inner wall, is equipped with the annular on the inside wall between fixed part 11 and the inflation portion 12 and ends shelves 111, and the annular ends shelves 111 and forms with fixed part 11 and ends the shelves cavity. The expansion rod 2 comprises a stopping part 21, a connecting part 22 and a guide part 23 which are arranged from top to bottom, the stopping part 21 is arranged in the stopping cavity, the stopping part 21 moves up and down in the stopping cavity when the expansion rod 2 moves, and meanwhile, the stopping cavity limits the moving range of the expansion rod 2 in the plug pin main body. Wherein bellying 20 sets up on connecting portion 22, and guide part 23 and extension 13 phase-match and stretch out from extension 13, and the length that guide part 23 stretches out from the extension is greater than the chamber length of stopping the shelves cavity, restores expansion link 2 to initial condition through cooperation external operation when making things convenient for bolt main part 1 to extract from the socket, makes things convenient for next use.

In the present invention, two protrusions 20 are provided on the connecting portion 22, and two arc-shaped grooves 10 are provided at the positions where the expansion portions 12 correspond to the protrusions 20. Through the arrangement, the extrusion expansion area of the plug pin body 1 is increased, and the plug pin body is in contact with a stable surface when being connected with a socket. And the section of bellying 20 adopts smooth curve, and the camber of arc recess 10 groove body is less than the camber of bellying 20 section curve, and arc recess 10 adopts smooth curve transition with the 12 inner wall junctions of inflation portion, and the smooth design makes the action of expansion link 2 in the bolt main part more smooth and easy more above adopting, also is favorable to using the back to resume initial condition simultaneously.

As an optimized scheme, in the present embodiment, the lower portion of the guide portion 23 of the expansion rod 2 is provided with the flange 3, the middle portion of the outer peripheral wall of the flange 3 is provided with the clamping groove 31 along the circumferential direction, the outer diameter of the flange 3 is the same as the outer diameter of the extension portion 13, the bottom of the socket adapted to the plug pin body 1 is provided with a blind hole, and the blind hole is provided with a convex ring matched with the clamping groove 31. When in actual use, the plug pin body is pressed downwards with force, the guide part 23 of the expansion rod 2 is firstly contacted with the socket, the convex ring in the socket is clamped into the clamping groove 31 on the lower flange 3 of the guide part 23 under the continuous action of the force, and the plug pin body 1 is also expanded under the action of the expansion rod 2; when extracting the bolt main part 1 from the socket, because the interlock effect of bulge loop and draw-in groove, can restore initial condition with expansion link 2 earlier, the part shrink that rises of bolt main part 1 when bulge loop and draw-in groove 31 separate, conveniently extracts bolt main part 1.

The above embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the present invention as defined by the claims.

Claims

1. The utility model provides a be applied to bolt for plug under high-power operating mode, a serial communication port, including bolt main part (1) and expansion link (2), inside bolt main part (1) was installed to expansion link (2) coaxial line, expansion link (2) outer wall was equipped with bellying (20) along circumference, vertical narrow through-hole constitution grid-like structure has evenly been seted up along circumference in bolt main part (1), grid-like structure inner wall is equipped with arc recess (10) that match with bellying (20) along circumference, partly is stretched out from bolt main part (1) in expansion link (2), and bellying (20) roll-off radially expand bolt main part (1) from arc recess (10) when expansion link (2) protrusion withdrawed bolt main part (1).

2. The plug pin applied to the plug under the high-power working condition as recited in claim 1, wherein the plug pin body (1) comprises a fixing portion (11), an expansion portion (12) and an extension portion (13) which are arranged from top to bottom, the fixing portion (11) is fixedly connected with the plug, the expansion portion (12) is of a grid-shaped structure, the arc-shaped groove (10) is arranged on the inner wall of the expansion portion (12), an annular stop (111) is arranged on the inner side wall between the fixing portion (11) and the expansion portion (12), the annular stop (111) and the fixing portion (11) form a stop cavity,

expansion link (2) are including from last backstop portion (21), connecting portion (22) and the guide part (23) that sets up down, backstop portion (21) are installed stop in the cavity, bellying (20) set up on connecting portion (22), guide part (23) with extension (13) phase-match stretches out from extension (13).

3. The plug pin for the plug under the high-power working condition as claimed in claim 2, wherein the connecting portion (22) is provided with two protrusions (20), and the expansion portion (12) is provided with two arc-shaped grooves (10) at the positions corresponding to the protrusions (20).

4. The plug pin for the plug under the high-power working condition according to claim 3, wherein the cross section of the bulge (20) adopts a smooth curve, the curvature of the groove body of the arc-shaped groove (10) is smaller than that of the cross section curve of the bulge (20), and the joint of the arc-shaped groove (10) and the inner wall of the expansion part (12) adopts a smooth curve transition.

5. The plug pin for the plug applied to the high-power working condition according to claim 2, wherein a flange (3) is arranged at the lower part of the guide part (23), a clamping groove (31) is formed in the middle of the outer peripheral wall of the flange (3) along the circumferential direction, the outer diameter of the flange (3) is the same as that of the extension part (13), a blind hole is formed in the bottom of a socket matched with the plug pin body (1), and a convex ring matched with the clamping groove (31) is arranged in the blind hole.

6. Plug pin for high power applications according to any of claims 1 to 5, characterized in that the expansion rod (2) is made of an insulating material.