Cable transmission node monitoring and protecting device

Abstract

The utility model relates to the field of monitoring protection, in particular to a cable transmission node monitoring protection device, which comprises a cable body, conductive units arranged at one end of the cable body, a protection unit arranged between the two conductive units, and two groups of contact mechanisms symmetrically arranged at one end of a wire head. The protection unit comprises a protection shell connected between the two sets of cable bodies in a sleeving mode, and a clamping assembly is arranged at one end of the limiting groove. A contact mechanism and a protective shell are arranged, the protective shell is connected between two sets of wire heads, a limiting groove and an air pressure groove are formed in the protective shell, a trapezoidal block is arranged in the limiting groove, the contact mechanism is clamped in the limiting groove through the trapezoidal block, and a sealing connecting block is arranged between the limiting groove and the air pressure groove. The temperature in the air pressure groove rises, the air expands, and the sealing connecting block is pushed downwards, so that the contact mechanisms at the head ends of the two groups of electric wires are separated, quick power-off protection is realized, and damage to user equipment and other lines is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to monitoring and protecting field, especially a cable transmission node monitoring and protecting device. BACKGROUND

[0002] In the power transmission line, the part cable transmission node place is short-circuited and lacks the fast protection when failing, is easy to cause the big loss, and we propose a kind of cable transmission node monitoring and protecting device to solve the above problems to solve the above problems. SUMMARY

[0003] This part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the problem that the part cable transmission node place is short-circuited and lacks the fast protection when failing, is easy to cause the big loss, the utility model is proposed.

[0005] Therefore, the utility model aims at providing cable transmission node monitoring and protecting device, which aims at: solve the problem that the part cable transmission node place is short-circuited and lacks the fast protection when failing.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: including,

[0007] Cable body, one end of cable body is equipped with conductive unit, and protective unit is equipped between two conductive units;

[0008] One end of the cable body includes an electric wire head;

[0009] One end of the electric wire head is symmetrically provided with two groups of contact head mechanisms, and an elastic connecting piece is provided between the two groups of contact head mechanisms;

[0010] The protective unit includes a protective shell sleeved between the two groups of cable bodies, a limiting groove and a gas pressure groove are arranged in the protective shell, a clamping assembly is arranged at one end of the limiting groove, a sealing connecting block is slidably arranged between the limiting groove and the gas pressure groove, and the two groups of contact head mechanisms are clamped in the limiting groove.

[0011] As a preferred scheme of the cable transmission node monitoring and protecting device of the utility model, the electric wire head is fixedly connected with a conductive ring, one end of the conductive ring is fixedly connected with a conductive disc, and two groups of No. 1 sliding grooves are symmetrically arranged on one side of the conductive disc.

[0012] As a preferred scheme of the cable transmission node monitoring protection device, the contact mechanism comprises a conductive block slidingly connected in the first sliding groove, and the contact mechanism further comprises a conductive contact, a telescopic groove is formed in a horizontal end of the conductive contact, the conductive block is slidingly connected in the telescopic groove, and a first spring is arranged in the telescopic groove.

[0013] As a preferred scheme of the cable transmission node monitoring protection device, the elastic connecting piece is a second spring, and two ends of the second spring are fixedly connected with the two groups of symmetrical conductive contacts.

[0014] As a preferred scheme of the cable transmission node monitoring protection device, the clamping component is a trapezoidal block, a right-angle side of the trapezoidal block is fixedly connected with a side wall of the limiting groove, a wedge surface of the trapezoidal block faces the direction of the wire head, the trapezoidal block is located at the junction of the limiting groove and the air pressure groove, and one end of the conductive contact is in a right-angle trapezoidal shape.

[0015] As a preferred scheme of the cable transmission node monitoring protection device, a second sliding groove is formed between the trapezoidal block and the protection shell, and a sealing connecting block is slidingly connected in the second sliding groove, so as to seal and separate the limiting groove and the air pressure groove.

[0016] As a preferred scheme of the cable transmission node monitoring protection device, an inflating head is arranged on an outer wall of the protection shell, and the inflating head is connected with the air pressure groove.

[0017] As a preferred scheme of the cable transmission node monitoring protection device, the air pressure groove is filled with carbon dioxide gas.

[0018] The cable transmission node monitoring protection device has the following beneficial effects:

[0019] The conductive unit is arranged on the wire head, the conductive unit comprises the contact mechanism for conducting and breaking, the protection unit is arranged, the protection unit comprises the protection shell, the protection shell is connected between the two groups of wire heads, the limiting groove and the air pressure groove are arranged in the protection shell, the trapezoidal block is arranged in the limiting groove, the contact mechanism is clamped in the limiting groove through the trapezoidal block, the sealing connecting block is arranged between the limiting groove and the air pressure groove, when the cable node appears a short circuit fault, the temperature in the air pressure groove rises, the gas expands and pushes down the sealing connecting block, the contact mechanism is separated from the trapezoidal block through the sealing connecting block, the contact mechanism is separated from the contact mechanism of the two groups of wire head ends under the action of the first spring arranged in the contact mechanism, and the rapid breaking protection is realized, so that the damage of user equipment and other lines is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 The overall structure of the cable transmission node monitoring and protection device is shown in the figure.

[0022] Figure 2 The structure of the conductive unit in the cable transmission node monitoring and protection device is shown in the figure.

[0023] Figure 3 The overall structure of the cable transmission node monitoring and protection device is shown in the figure.

[0024] Figure 4 The overall structure of the cable transmission node monitoring and protection device is shown in the figure. Figure 3 The enlarged view of area A in the figure.

[0025] Figure 5 The enlarged view of area B in the figure. Figure 3 The enlarged view of area B in the figure.

[0026] Explanation of reference signs:

[0027] 100, cable body; 101, wire head;

[0028] 200, protection unit; 201, protection shell; 202, limiting groove; 203, air pressure groove; 204, trapezoidal block; 205, No. 2 sliding groove; 206, sealing connecting block;

[0029] 300, inflation head;

[0030] 400, conductive unit; 401, conductive ring; 402, conductive disc; 4021, No. 1 sliding groove; 403, conductive block; 404, No. 1 spring; 405, conductive contact; 4051, telescopic groove; 406, No. 2 spring. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0032] With reference to Figures 1-5 The cable transmission node monitoring and protection device provided by the present application comprises a cable body 100, one end of the cable body 100 is provided with a conductive unit 400, and a protection unit 200 is arranged between the two conductive units 400.

[0033] One end of the cable body 100 comprises a wire head 101;

[0034] One end of the wire head 101 is symmetrically provided with two groups of contact mechanisms, and an elastic connecting piece is arranged between the two groups of contact mechanisms. The two groups of cable bodies 100 realize power-on and power-off through the contact and separation of the contact mechanisms. The protection unit 200 cooperates with the contact mechanisms to realize the contact and separation of the two groups of contact mechanisms.

[0035] The protection unit 200 comprises a protection shell 201 sleeved between the two groups of cable bodies 100. The protection shell 201 is made of transparent material, which can facilitate the observation of the connection of the internal contact mechanisms and the rapid judgment of the fault point by the staff, thereby improving the maintenance efficiency. The protection shell 201 is internally provided with a limiting groove 202 and an air pressure groove 203. One end of the limiting groove 202 is provided with a clamping assembly for clamping the contact mechanisms in the limiting groove 202 to ensure the stability of the two groups of contact mechanisms after being contacted. The limiting groove 202 and the air pressure groove 203 are slidably provided with a sealing connecting block 206. The two groups of contact mechanisms are clamped in the limiting groove 202. The limiting groove 202 is used for limiting the contact mechanisms to avoid the shaking of the contact mechanisms affecting the conduction. When a short circuit occurs, the temperature rises, the internal air pressure of the air pressure groove 203 rises and pushes the sealing connecting block 206 to move towards the middle of the limiting groove 202. The sealing connecting block 206 extrudes the contact mechanisms, so that the contact mechanisms are no longer clamped in the limiting groove 202 by the clamping assembly.

[0036] The wire head 101 is fixedly connected with a conductive ring 401. One end of the conductive ring 401 is fixedly connected with a conductive disc 402. Two groups of first sliding grooves 4021 are symmetrically formed on one side of the conductive disc 402. The contact mechanism comprises a conductive block 403 slidably connected in the first sliding groove 4021. The contact mechanism further comprises a conductive contact 405. A telescopic groove 4051 is formed on the horizontal end of the conductive contact 405. The conductive block 403 is slidably connected in the telescopic groove 4051. The current passes through the wire head 101, the conductive ring 401, the conductive disc 402 and the conductive block 403 and finally reaches the conductive contact 405. Through the contact of the two groups of conductive contacts 405, the two groups of cable bodies 100 are powered on. A first spring 404 is arranged in the telescopic groove 4051 for cooperating with the conductive contact 405 in the extrusion process by the sealing connecting block 206, so that the conductive contact 405 is separated from the trapezoidal block 204. The elastic connecting piece is a second spring 406. The two ends of the second spring 406 are fixedly connected with the two groups of symmetrical conductive contacts 405, respectively, for cooperating with the sealing connecting block 206 in extruding the conductive contact 405. The second spring 406 is contracted and deformed, so that the conductive contact 405 is no longer clamped by the trapezoidal block 204.

[0037] The clamping assembly is a trapezoidal block 204, the right angle side of the trapezoidal block 204 is fixedly connected with the side wall of the limiting groove 202, the wedge surface of the trapezoidal block 204 faces the direction of the wire head 101, so that when the conductive contact 405 moves into the limiting groove 202, the vertical component force of the conductive contact 405 on the conductive contact 405 makes the second spring 406 more easily deform and contract, so that the conductive contact 405 passes through the trapezoidal block 204, the trapezoidal block 204 is located at the intersection of the limiting groove 202 and the air pressure groove 203, the positions of the contact surfaces of the two groups of conductive contacts 405 and the position of the sealing connecting block 206 are designed in the same vertical plane, so as to facilitate the separation of the two groups of conductive contacts 405 through the sealing connecting block 206, one end of the conductive contact 405 is in the shape of a right-angle trapezoid, so that when the wedge surface of the conductive contact 405 is in contact and extruded with the wedge surface of the trapezoidal block 204, under the vertical and horizontal component forces, the operator is more easily to connect the two groups of conductive contacts 405, the trapezoidal block 204 and the protective shell 201 are provided with a second sliding groove 205, and the sealing connecting block 206 is slidably connected in the second sliding groove 205, for sealing and separating the limiting groove 202 and the air pressure groove 203;

[0038] The outer wall of the protective shell 201 is provided with an inflation head 300, the inflation head 300 is connected with the air pressure groove 203, the air pressure groove 203 is filled with carbon dioxide gas, the inflation head 300 is used for periodically supplementing carbon dioxide into the air pressure groove 203, when a fire occurs, the carbon dioxide gas can play a role in extinguishing the fire source, effectively improving the safety, in addition, a temperature detector can be arranged in the air pressure groove 203, for monitoring the temperature of the cable node, and real-time monitoring the temperature of the short circuit point;

[0039] When the cable node occurs a short circuit fault, the temperature of the carbon dioxide in the air pressure groove 203 rises and begins to expand, the expanded carbon dioxide gas extrudes the sealing connecting block 206 to one side of the limiting groove 202, the sealing connecting block 206 begins to extrude the conductive contact 405, the second spring 406 shrinks, and the upper and lower conductive contacts 405 begin to approach each other, when the two conductive contacts 405 are no longer blocked by the trapezoidal block 204, under the restoring force of the first spring 404, the conductive contact 405 moves horizontally, the conductive contacts 405 between the two groups of cables are separated, at this time, the power-off protection is completed;

[0040] When the worker checks the line, a set of cables is replaced, the wire head 101 of one end of the new cable body 100 is installed with the conductive unit 400, and the conductive unit 400 is inserted into the limiting groove 202, so that the new conductive contact 405 is clamped by the trapezoidal block 204, the new conductive contact 405 is connected with the old conductive contact 405, and the operation is convenient, finally, whether the amount of carbon dioxide gas in the air pressure groove 203 can guarantee the requirement that the sealing connection block 206 separates the conductive contact 405 from the trapezoidal block 204 when the temperature of the line is too high, and according to the actual work requirement, the carbon dioxide gas is supplemented.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A cable transmission node monitoring protection apparatus, characterized by: The utility model relates to a cable body (100), one end of cable body (100) is equipped with conductive unit (400), and the protective unit (200) is equipped between two conductive units (400). One end of the cable body (100) comprises a wire head (101). One end of the wire head (101) is symmetrically provided with two groups of contact mechanisms, and an elastic connecting piece is provided between the two groups of contact mechanisms. The protective unit (200) comprises a protective shell (201) sleeved between the two groups of cable bodies (100), the protective shell (201) is provided with a limiting groove (202) and a gas pressure groove (203), one end of the limiting groove (202) is provided with a clamping assembly, a sealing connecting block (206) is slidably arranged between the limiting groove (202) and the gas pressure groove (203), and the two groups of contact mechanisms are clamped in the limiting groove (202). The wire head (101) is fixedly connected with a conductive ring (401), one end of the conductive ring (401) is fixedly connected with a conductive disc (402), and two groups of first sliding grooves (4021) are symmetrically formed on one side of the conductive disc (402).

2. The cable transmission node monitoring guard of claim 1, wherein: The contact mechanism comprises a conductive block (403) slidably connected in the first sliding groove (4021), and further comprises a conductive contact (405), a telescopic groove (4051) is formed in the horizontal end of the conductive contact (405), the conductive block (403) is slidably connected in the telescopic groove (4051), and a first spring (404) is arranged in the telescopic groove (4051).

3. The cable transmission node monitoring guard of claim 2, wherein: The elastic connecting piece is a second spring (406), and the two ends of the second spring (406) are fixedly connected with the two groups of symmetrical conductive contacts (405).

4. The cable transmission node monitoring guard of claim 3, wherein: The clamping assembly is a trapezoidal block (204), the straight side of the trapezoidal block (204) is fixedly connected with the side wall of the limiting groove (202), the wedge surface of the trapezoidal block (204) faces the direction of the wire head (101), the trapezoidal block (204) is located at the junction of the limiting groove (202) and the gas pressure groove (203), and one end of the conductive contact (405) is in the shape of a right trapezoid.

5. The cable transmission node monitoring guard of claim 4, wherein: A second sliding groove (205) is formed between the trapezoidal block (204) and the protective shell (201), and the sealing connecting block (206) is slidably connected in the second sliding groove (205) to seal and separate the limiting groove (202) and the gas pressure groove (203).

6. The cable transmission node monitoring guard of claim 5, wherein: An inflation head (300) is arranged on the outer wall of the protective shell (201), and the inflation head (300) is connected with the gas pressure groove (203).

7. The cable transmission node monitoring guard of claim 6, wherein: The gas pressure groove (203) is filled with carbon dioxide gas.

8. The cable transmission node monitoring guard of claim 7, wherein: ​

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