Vacuum-pumping tee joint for GIS (Gas Insulated Switchgear) equipment

Abstract

The utility model discloses a GIS equipment vacuum-pumping tee, which relates to the technical field of pipeline fittings, and comprises a tee main body and a connecting seat arranged at the tee position of the tee main body, one end of the connecting seat far away from the tee main body is movably provided with a threaded pipe, and one end of the inner cavity of the threaded pipe far away from the connecting seat is detachably provided with a connector. A plurality of driving mechanisms are installed on the outer side of the threaded pipe at equal intervals, rotating assemblies are installed at the inner ends of the threaded pipe, and when the air pipe is installed with an external air pipe, a threaded connector fixed to the connector is in butt joint with the threaded pipe at the moment, then the threaded pipe is rotated, and a limiting block fixed to the threaded pipe can slide in an inner cavity of a limiting groove; and the threaded pipe is prevented from accidentally falling off by arranging the connecting block to slide in the inner cavity of the connecting groove, the threaded connector can enter the inner cavity of the threaded pipe through rotation of the threaded pipe, connection with an external air pipe is facilitated, winding of the air pipe can be prevented, and the subsequent service life of the air pipe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline accessories, in particular to a vacuum tee for GIS equipment. Background Art

[0002] GIS refers to gas-insulated metal-enclosed switchgear. GIS is one of the devices used in distribution networks and is widely used in existing technologies. In practical applications, a three-way device connection is required to perform vacuum operations on the equipment.

[0003] The existing GIS equipment vacuum tee uses threads to connect the tee to the pipeline when in use. However, the threaded connection will cause the pipeline to rotate together, which will cause knotting and wrinkling, affecting the use of the pipeline after connection. In addition, when the staff rotates the threaded pipe, if there is oil on their hands, it is easy for the staff to slip during rotation, reducing the use effect of the device.

[0004] Therefore, we proposed a GIS equipment vacuum tee to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a GIS equipment vacuum tee to solve the problem that the threaded connection will cause the pipe to rotate together with it, which will cause knotting and wrinkling, affecting the use of the pipe after connection and the installation progress. In addition, if the pipe is rotated directly when rotating, there will be a large contact area, which will cause inconvenience in rotation and inconvenience in daily use.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a GIS equipment vacuum tee, comprising a tee body and a connecting seat installed at the tee of the tee body, the connecting seat is movably installed with a threaded tube at one end away from the tee body, a connecting head is detachably installed at one end of the inner cavity of the threaded tube away from the connecting seat, a plurality of driving mechanisms are installed at equal intervals on the outer side of the threaded tube, and a rotating assembly is installed at the inner end of the threaded tube;

[0007] The rotating assembly includes limit blocks fixedly installed at the front and rear ends of the inner side of the threaded tube and connecting blocks fixedly installed at the front and rear sides of the limit blocks. A sealing ring B is fixedly installed at the inner side of the threaded tube, and the sealing ring B is located between the limit blocks.

[0008] Preferably, a limiting groove is provided near the edge of one end of the connecting seat away from the tee body, and a connecting groove is provided on the side wall of the inner cavity of the limiting groove. The output ends of the limiting block and the connecting block are respectively slidably installed in the inner cavities of the limiting groove and the connecting groove. A sealing groove is provided near the middle of one end of the connecting seat away from the tee body, and the output end of the sealing ring B is inserted into the inner cavity of the sealing groove.

[0009] Preferably, a plurality of receiving grooves are provided on the outer side of the threaded tube, a sealing ring C is fixedly sleeved on one side of the outer side of the threaded tube, and the inner side of the sealing ring C is respectively fitted on the outer wall of one end of the connecting seat.

[0010] Preferably, the plurality of receiving grooves are arranged in a circular array with the center of the threaded tube as the center.

[0011] Preferably, the inner side of the connector is fixedly connected with a threaded joint, and the connector is threadedly installed in the inner cavity of the threaded pipe through the threaded joint. A sealing ring A is fixedly installed on the inner side of the connector near the edge, and the sealing ring A is fit-fittingly installed on the outer wall of one end of the threaded pipe.

[0012] Preferably, the driving mechanism includes a driving handle arranged on the outside of the threaded tube and a damping shaft fixedly installed on the driving handle near one end, and the driving handle and the damping shaft are jointly located in the inner cavity of one of the receiving grooves, and both ends of the damping shaft are rotatably installed on the inner wall of the inner cavity of the receiving groove, and a rectangular block is provided at one end of the driving handle.

[0013] Preferably, a protective sleeve is fixedly sleeved on the outer side of the driving handle.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When installing with external air pipe, the threaded joint fixed on the connecting head is connected with the threaded pipe, and then the threaded pipe is rotated, so that the limit block fixed on the threaded pipe can slide in the inner cavity of the limit groove, and the connecting block is set to slide in the inner cavity of the connecting groove to prevent the threaded pipe from accidentally falling off, and the threaded joint can enter the inner cavity of the threaded pipe by rotating the threaded pipe, which is convenient for connecting with external air pipe, can prevent the air pipe from being entangled, and improve the subsequent service life of the air pipe.

[0016] 2. When the threaded tube rotates, the driving handle is turned up to facilitate the staff to drive the threaded tube. By setting the damping shaft, the driving handle will not be easily restored, thereby improving the effect of driving the threaded tube to rotate through the driving handle, and the protective cover can provide protection for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an exploded view of the tee body and the connector of the utility model;

[0019] Figure 3 This is an exploded view of the threaded pipe, connecting seat and sealing ring of the utility model;

[0020] Figure 4 It is a partial cross-sectional view of the connecting seat of the utility model;

[0021] Figure 5 For the utility model Figure 3 Enlarged view of point A in the middle;

[0022] Figure 6 For the utility model Figure 4 Enlarged view of point B in the middle.

[0023] In the figure: 1. tee body; 2. connecting seat; 21. limiting groove; 22. connecting groove; 23. sealing groove; 3. threaded pipe; 31. storage groove; 32. sealing ring C; 4. connecting head; 41. threaded joint; 42. sealing ring A; 5. driving mechanism; 51. driving handle; 511. protective sleeve; 52. damping shaft; 53. rectangular block; 6. rotating assembly; 61. limiting block; 62. connecting block; 63. sealing ring B. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-6 The utility model provides a technical solution: a GIS equipment vacuum tee, comprising a tee body 1 and a connecting seat 2 installed at the tee of the tee body 1, a threaded tube 3 is movably installed at one end of the connecting seat 2 away from the tee body 1, a connector 4 is detachably installed at one end of the inner cavity of the threaded tube 3 away from the connecting seat 2, a plurality of driving mechanisms 5 are installed at equal intervals on the outer side of the threaded tube 3, and a rotating assembly 6 is installed at the inner end of the threaded tube 3;

[0026] The rotating assembly 6 includes limit blocks 61 fixedly installed at the front and rear ends of the inner side of the threaded tube 3 and connecting blocks 62 fixedly installed at the front and rear sides of the limit blocks 61. A sealing ring B63 is fixedly installed on the inner side of the threaded tube 3, and the sealing ring B63 is located between the limit blocks 61. The limit blocks 61 fixed on the threaded tube 3 can enable it to slide in the inner cavity of the limit groove 21.

[0027] A limiting groove 21 is provided near the edge of the end of the connecting seat 2 away from the tee body 1, and a connecting groove 22 is provided on the side wall of the inner cavity of the limiting groove 21. The output ends of the limiting block 61 and the connecting block 62 are respectively slidably installed in the inner cavities of the limiting groove 21 and the connecting groove 22. A sealing groove 23 is provided near the middle of the end of the connecting seat 2 away from the tee body 1, and the output end of the sealing ring B63 is inserted into the inner cavity of the sealing groove 23. By setting the sealing ring B63, the sealing between the threaded pipe 3 and the connecting seat 2 can be improved.

[0028] The outer side of the threaded tube 3 is provided with a plurality of receiving grooves 31, and a sealing ring C32 is fixedly sleeved on one side of the outer side of the threaded tube 3, and the inner side of the sealing ring C32 is respectively attached to the outer wall of one end of the connecting seat 2, so that the sealing performance between the threaded tube 3 and the connecting seat 2 is improved by the setting of the sealing ring C32.

[0029] A plurality of receiving grooves 31 are arranged in a circular array with the center of the threaded tube 3 as the center.

[0030] The inner side of the connector 4 is fixedly connected with a threaded joint 41, and the connector 4 is threadedly installed in the inner cavity of the threaded pipe 3 through the threaded joint 41. A sealing ring A42 is fixedly installed on the inner side of the connector 4 near the edge, and the sealing ring A42 is fit-fittingly installed on the outer wall of one end of the threaded pipe 3. By setting the sealing ring A42, the sealing between the threaded pipe 3 and the connector 4 can be improved.

[0031] In this embodiment: the tee body 1 is connected to an external vacuum equipment, and the GIS equipment is vacuumed through the tee body 1. Before vacuuming, the tee body 1 needs to be connected to an external pipeline. The threaded tube 3 can be rotated to make it threadedly connected with the threaded joint 41 on the connector 4, and the sealing ring A42 can improve the sealing ring at the connection. When the threaded tube 3 rotates, it will also drive the limit block 61 and the connecting block 62 to rotate in the inner cavity of the limit groove 21 and the connecting groove 22 respectively, playing a guiding and limiting role, while the connector 4 will not rotate, thereby improving the connection effect. At the same time, the setting of the sealing ring B63 can improve the sealing of the connection between the connecting seat 2 and the threaded tube 3 to avoid gas leakage.

[0032] Example 2: Please refer to Figure 1 , Figure 3 and Figure 5 The driving mechanism 5 includes a driving handle 51 arranged on the outside of the threaded tube 3 and a damping shaft 52 fixedly installed on the driving handle 51 near one end, and the driving handle 51 and the damping shaft 52 are jointly located in the inner cavity of one of the receiving grooves 31, and both ends of the damping shaft 52 are rotatably installed on the inner wall of the inner cavity of the receiving groove 31. A rectangular block 53 is arranged at one end of the driving handle 51, and the rectangular block 53, by setting the driving handle 51, is convenient for the staff to drive the threaded tube 3 to rotate, thereby improving the use effect of the device.

[0033] A protective sleeve 511 is fixedly sleeved on the outer side of the driving handle 51 .

[0034] In this embodiment: when the threaded tube 3 is rotated, the driving handle 51 can be pulled away from the inner cavity of the storage groove 31, and the setting of the rectangular block 53 can limit the driving handle 51 to a suitable position to prevent it from continuing to deflect. At this time, the staff can drive the threaded tube 3 to rotate by rotating the driving handle 51, and the setting of the protective sleeve 511 can play a protective role.

[0035] Working principle: When in use, the tee body 1 can be connected to an external vacuum equipment, and the GIS equipment can be vacuumed through the tee body 1. Before vacuuming, the tee body 1 needs to be connected to an external pipe, and the threaded tube 3 can be rotated to make it threadedly connected with the threaded joint 41 on the connector 4, and the sealing ring A42 can improve the sealing ring at the connection, and when the threaded tube 3 is rotated, the driving handle 51 can be pulled away from the inner cavity of the storage groove 31, and the setting of the rectangular block 53 can limit the driving handle 51 to a suitable position to prevent it from continuing to deflect. At this time, the staff can drive the threaded tube 3 to rotate by rotating the driving handle 51, and the setting of the protective sleeve 511 can play a protective role. When the threaded tube 3 rotates, it will also drive the limit block 61 and the connecting block 62 to rotate in the inner cavity of the limit groove 21 and the connecting groove 22 respectively, playing a guiding and limiting role, and the connector 4 will not rotate, thereby improving the effect of the connection. At the same time, the setting of the sealing ring B63 can improve the sealing of the connection between the connecting seat 2 and the threaded tube 3 to prevent gas leakage.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A GIS equipment vacuum tee, comprising a tee body (1) and a connecting seat (2) installed at the tee of the tee body (1), characterized in that: The end of the connection seat (2) away from the tee body (1) is movably mounted with a threaded tube (3), the end of the inner cavity of the threaded tube (3) away from the connection seat (2) is detachably mounted with a connector (4), a plurality of drive mechanisms (5) are evenly spacedly mounted on the outside of the threaded tube (3), and a rotating assembly (6) is mounted on the inner end of the threaded tube (3); The rotating assembly (6) comprises limit blocks (61) fixedly mounted at the front and rear ends of the inner side of the threaded tube (3) and connecting blocks (62) fixedly mounted at the front and rear sides of the limit blocks (61). A sealing ring B (63) is fixedly mounted at the inner side of the threaded tube (3), and the sealing ring B (63) is located between the limit blocks (61).

2. A GIS equipment vacuum tee according to claim 1, characterized in that: A limiting groove (21) is provided near the edge of one end of the connection seat (2) away from the tee body (1), and a connecting groove (22) is provided on the inner side wall of the limiting groove (21). The output ends of the limiting block (61) and the connecting block (62) are slidably mounted in the inner cavities of the limiting groove (21) and the connecting groove (22), respectively. A sealing groove (23) is provided near the middle of one end of the connection seat (2) away from the tee body (1), and the output end of the sealing ring B (63) is inserted into the inner cavity of the sealing groove (23).

3. A GIS equipment vacuum tee according to claim 1, characterized in that: The outer side of the threaded tube (3) is provided with a plurality of receiving grooves (31), and a sealing ring C (32) is fixedly sleeved on one side of the outer side of the threaded tube (3), and the inner side of the sealing ring C (32) is respectively fitted on the outer wall of one end of the connecting seat (2).

4. A GIS equipment vacuum tee according to claim 3, characterized in that: A plurality of receiving grooves (31) are arranged in a circular array with the center of the threaded tube (3) as the center of the circle.

5. The GIS equipment vacuum tee according to claim 1, characterized in that: The inner sides of the connectors (4) are fixedly connected to threaded joints (41), and the connectors (4) are threadedly mounted in the inner cavities of the threaded tubes (3) through the threaded joints (41). A sealing ring A (42) is fixedly mounted on the inner side of the connectors (4) near the edge, and the sealing ring A (42) is fitted onto the outer wall of one end of the threaded tube (3).

6. A GIS equipment vacuum tee according to claim 3, characterized in that: The driving mechanism (5) comprises a driving handle (51) arranged outside the threaded tube (3) and a damping shaft (52) fixedly installed on the driving handle (51) near one end, wherein the driving handle (51) and the damping shaft (52) are located together in the inner cavity of one of the receiving grooves (31), and both ends of the damping shaft (52) are rotatably installed on the inner wall of the inner cavity of the receiving groove (31), and a rectangular block (53) is arranged at one end of the driving handle (51).

7. A GIS equipment vacuum tee according to claim 6, characterized in that: A protective sleeve (511) is fixedly sleeved on the outer side of the driving handle (51).

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