CN219694430U

CN219694430U - Quick-change connector for safety valve test

Info

Publication number: CN219694430U
Application number: CN202320995549.3U
Authority: CN
Inventors: 凌远坤; 吕善超; 王创举; 夏叶创; 张传雷; 杜东东; 张娟娟; 刘晓宇
Original assignee: Zhengzhou Hengda Intelligent Control Technology Co ltd
Current assignee: Zhengzhou Hengda Intelligent Control Technology Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-15
Anticipated expiration: 2033-04-27

Abstract

The utility model provides a quick-change connector for testing a safety valve, which comprises a connector body and a limiting block, wherein the connector body is provided with a clamping hole and a telescopic groove, the clamping hole is matched with a liquid inlet end of the safety valve to form a shaft hole, the limiting block comprises a driving end at the outer end and a limiting end at the inner end, and the driving end drives the limiting block to stretch along the telescopic groove so that the limiting end stretches into or stretches out of the clamping hole so as to limit or unlock the axial position of the safety valve. The quick-change connector for testing the safety valve has the advantages of being scientific in design, quick to replace, high in working efficiency and capable of guaranteeing testing safety.

Description

Quick-change connector for safety valve test

Technical Field

The utility model relates to the field of safety valve testing, in particular to a quick-change connector for safety valve testing.

Background

The safety valve is a special valve which is in a normally closed state under the action of external force and is used for preventing the medium pressure in the pipeline or the equipment from exceeding a specified value by discharging the medium to the outside of the system when the medium pressure in the equipment or the pipeline is increased to exceed the specified value.

Different from a common safety valve, the safety valve used in the hydraulic support needs to be adjusted according to the requirement of a customer, the opening pressure of the safety valve is usually set to be between 35MPa and 50MPa, the pressure regulating screw at the top of the safety valve is screwed during pressure regulation, meanwhile, the high-pressure tightness and the low-pressure tightness also need to be tested according to the national standard requirement, and the requirements on operation and control are relatively high because of the pressure regulation and the test, the safety valve can only be tested manually at present, and the safety valve has the advantages of small volume, large quantity, high labor intensity of manual test and low test efficiency.

In order to solve the problems, the applicant designs a set of safety valve testing equipment which can automatically regulate the pressure and test the safety valve for the hydraulic support, and in the process, a joint which can rapidly connect the safety valve to be tested with a liquid supply system is required to be designed at a testing station, and meanwhile, the safety valve can not be separated from the station in the high-pressure testing process, so that the testing safety can be ensured.

In order to solve the above problems, an ideal technical solution is always sought.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides the quick-change connector for testing the safety valve, which is scientific in design, quick to replace, high in working efficiency and capable of guaranteeing testing safety.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a quick change connector for relief valve test, includes connects body and stopper, clamping hole and expansion groove have been seted up on the joint body, clamping hole forms shaft hole cooperation with the feed liquor end of relief valve, the stopper includes the drive end of outer end and the spacing end of inner, the drive end drive the stopper is followed the expansion groove is flexible, makes the spacing end stretches into or take out and leave the clamping hole to inject or unblock the axial position of relief valve.

Based on the above, the joint body is provided with a travel slot, and the limiting block is provided with a limiting bolt, and the limiting bolt extends into the travel slot so as to limit the travel of the limiting block.

Based on the above, the limiting end is provided with two clamping shafts, and the two clamping shafts are used for being inserted into two sides of the annular groove on the liquid inlet end of the safety valve.

Based on the above, the driving end is provided with a T-shaped hole, and the T-shaped hole is used for being in butt joint with an external driving device.

Based on the above, still be provided with the feed liquor interface on the joint body, the feed liquor interface sets up under the clamping hole, install the sealing washer on the feed liquor interface outer peripheral face.

Based on the above, the joint body is provided with a fastening bolt so as to be connected with the test platform.

Compared with the prior art, the utility model has the substantial characteristics and improvements, in particular to the utility model, through arranging the clamping hole on the connector body, the liquid inlet end of the safety valve is inserted into the clamping hole, the limiting block is used for extending and contracting along the telescopic groove, the limiting end limits or unlocks the axial position of the safety valve, the quick replacement is realized, and the safety valve cannot be separated from the quick-change connector under a high-pressure test after being limited.

Further, through the cooperation of the limit bolt and the stroke long hole, the stroke limiting function of the limiting block is realized, and the excessive expansion and contraction of the limiting block are avoided; the two clamping shafts are inserted into two sides of the annular groove on the liquid inlet end of the safety valve to clamp the safety valve, so that the safety valve can adapt to safety valves with various specifications; the T-shaped holes are arranged, so that the T-shaped holes are convenient to butt joint with an external driving device; the liquid inlet port is arranged, so that the liquid inlet pipe is conveniently externally connected; the fastening bolt is convenient to fix the joint body.

Drawings

FIG. 1 is a schematic structural view of a quick-change connector for testing a safety valve according to the present utility model.

Fig. 2 is a top view of the quick-change coupler for testing a safety valve according to the present utility model.

Fig. 3 is a plan view of the quick-change connector for testing the safety valve after the limiting block is pushed in.

In the figure: 1. a joint body; 2. a limiting block; 3. a seal ring; 4. a limit bolt; 5. a fastening bolt; 6. clamping the hole; 7. a safety valve; 8. a stroke long hole; 9. a liquid inlet port; 21. a T-shaped hole; 22. a clamping shaft; 71. a liquid inlet end; 72. and a ring groove.

Detailed Description

The technical scheme of the utility model is further described in detail through the following specific embodiments.

As shown in fig. 1-3, a quick-change connector for testing a safety valve comprises a connector body 1 and a limiting block 2, wherein a clamping hole 6 and a telescopic groove are formed in the connector body 1, the clamping hole 6 and a liquid inlet end 71 of the safety valve 7 form shaft hole matching, the limiting block 2 comprises a driving end at the outer end and a limiting end at the inner end, the driving end is provided with a T-shaped hole 21, the T-shaped hole 21 is used for being in butt joint with an external driving device, the limiting end is provided with two clamping shafts 22, the driving end drives the limiting block 2 to stretch along the telescopic groove, so that the limiting end stretches into or stretches out of the clamping hole 6, and the two clamping shafts 22 are inserted into two sides of a ring groove 72 on the liquid inlet end 71 of the safety valve 7, so that the axial position of the safety valve 7 is limited or unlocked.

In order to avoid excessive expansion, the joint body 1 is provided with a stroke slot 8, the limiting block 2 is provided with a limiting bolt 4, and the limiting bolt 4 extends into the stroke slot 8 so as to limit the stroke of the limiting block 2.

The connector body 1 is also provided with a liquid inlet port 9, the liquid inlet port 9 is arranged right below the clamping hole, and the peripheral surface of the liquid inlet port 9 is provided with a sealing ring 3 so as to be externally connected with a liquid inlet pipe; the connector body 1 is provided with a fastening bolt 5 so as to be connected with a test platform.

When the safety valve is specifically used, the limiting block 2 extends out of the telescopic groove, the liquid inlet end 71 of the safety valve 7 is inserted into the clamping hole 6, the limiting block 2 is pushed in, the two clamping shafts 22 are inserted into two sides of the annular groove 72 on the liquid inlet end 71 of the safety valve 7, the limiting effect is achieved, the test can be started, and after the test is completed, the quick replacement can be realized by repeating the steps.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. A quick change connector for safety valve test is characterized in that: the hydraulic safety valve comprises a joint body and a limiting block, wherein a clamping hole and a telescopic groove are formed in the joint body, the clamping hole is matched with a liquid inlet end of the safety valve in a shaft hole mode, the limiting block comprises a driving end at the outer end and a limiting end at the inner end, the driving end drives the limiting block to stretch out and draw back along the telescopic groove, and the limiting end stretches into or is pulled out of the clamping hole so as to limit or unlock the axial position of the safety valve.

2. The quick-change coupler for testing a safety valve according to claim 1, wherein: the connector is characterized in that a travel long hole is formed in the connector body, and a limit bolt is arranged on the limit block and extends into the travel long hole so as to limit the travel of the limit block.

3. The quick-change connector for testing a safety valve according to claim 1 or 2, wherein: the limiting end is provided with two clamping shafts, and the two clamping shafts are used for being inserted into two sides of the annular groove on the liquid inlet end of the safety valve.

4. A quick change coupler for testing a safety valve according to claim 3, wherein: t-shaped holes are formed in the driving end and are used for being in butt joint with an external driving device.

5. The quick-change coupler for testing a safety valve according to any one of claims 1, 2 and 4, wherein: the connector is characterized in that the connector body is further provided with a liquid inlet, the liquid inlet is arranged right below the clamping hole, and the outer peripheral surface of the liquid inlet is provided with a sealing ring.

6. The quick-change coupler for testing a safety valve according to claim 5, wherein: the connector body is provided with a fastening bolt so as to be connected with a test platform.