Integrated tool for detecting liquid leakage and pressure of winch pressure lever

Abstract

The invention relates to the technical field of integrated tools, in particular to a winch pressure lever drainage and pressure detection integrated tool which comprises a connecting pipe. The upper end of the connecting pipe is provided with a safety valve which can be automatically opened to release pressure so as to prevent the single body from being overloaded and broken, the upper end of the safety valve is provided with a DN10 tee joint, the upper end of the DN10 tee joint is provided with a pressure gauge which displays the internal pressure value of the single body hydraulic prop in real time and provides digital pressure data, and the side end of the DN10 tee joint is provided with a valve element used for abutting against a single body three-purpose valve. And the liquid drainage ejector pin triggers the liquid injection or pressure relief passage. By arranging the safety valve, pressure relief can be automatically started when the internal pressure of the single hydraulic prop exceeds a rated value, single overload fracture caused by accidents such as top plate sinking is avoided, and equipment damage and top plate accident risks are effectively prevented; the pressure gauge displays the internal pressure value of the single hydraulic prop in real time and provides digital data, an operator can accurately judge whether the single hydraulic prop is subjected to pressure maintaining or not through the visual pressure value, and the risk of support failure caused by experience misjudgment is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated tooling, in particular to an integrated tooling for winch pressure bar draining and pressure detection. Background Art

[0002] During the equipment withdrawal process of the comprehensive mining working face, the two-speed multi-purpose winch is used as the main auxiliary equipment in conjunction with the single hydraulic support. The three-way valve of the single hydraulic support is responsible for controlling the support's injection, pressure relief and other operations.

[0003] During the use of the winch, the three-way valve fails to release pressure, which can easily cause the unit to break when the top plate sinks; there is another situation: the unit unloads itself, resulting in its inability to maintain pressure. In the past, when testing whether the unit maintains pressure or meets the use requirements, the operators only used a wrench or a hammer to knock on the unit to determine whether it maintains pressure. It is impossible to determine whether it maintains pressure in real time, nor can it be reflected in numbers. It can only be judged based on experience, which poses a huge safety hazard.

[0004] Therefore, in order to address the problems that the above-mentioned traditional methods only rely on experience and judgment and lack digital means, resulting in backward pressure detection technology, and the pressure relief mechanism is passive, unable to respond automatically in the event of a fault, the equipment is easily damaged, and the risk of accidents is high, a winch pressure bar discharge and pressure detection integrated tooling can be designed. Summary of the Invention

[0005] In order to overcome the problem that traditional methods rely solely on experience and judgment and lack digital means, resulting in backward pressure detection technology, passive pressure relief mechanism, inability to respond automatically in the event of a fault, and easy damage to the equipment.

[0006] The technical solution is as follows: an integrated tooling for winch pressure bar drainage and pressure detection, including a connecting pipe; a safety valve that automatically opens and releases pressure to prevent the unit from being overloaded and broken is installed on the upper end of the connecting pipe, a DN10 tee is installed on the upper end of the safety valve, a pressure gauge that displays the internal pressure value of the unit hydraulic support in real time and provides digital pressure data is installed on the upper end of the DN10 tee, a valve core for tightening the unit three-way valve and a drainage pin that triggers the injection or pressure relief passage is installed on the side end of the DN10 tee, and a unit injection gun nozzle that is quickly connected to the injection port of the unit three-way valve to ensure that the tooling is sealed and connected to the unit hydraulic system is installed on the outer end of the DN10 tee away from the drainage pin.

[0007] Furthermore, the lower end of the pressure gauge is fixedly connected to a mounting ring, the lower end of the mounting ring is fixedly connected to a threaded mounting rod, and a threaded mounting groove that is compatible with the threaded mounting rod is provided at the upper end interface of the DN10 tee.

[0008] Furthermore, a mounting through hole for use with a drain pin is provided at the side end interface of the DN10 tee, and a sealing pressure ring is installed inside the mounting through hole.

[0009] Furthermore, the sealing pressure ring is made of rubber material, and the sealing pressure ring is installed inside the installation through hole through interference fit.

[0010] Furthermore, an assembly groove is provided at the interface of the DN10 tee away from the drain ejector pin, and a fixing plate is installed at the outer side of the nozzle of the monomer injection gun close to the end of the DN10 tee.

[0011] Furthermore, an insertion sleeve is installed at the side end of the fixing plate for insertion into the assembly groove for installation, and a flow cavity is opened inside the nozzle of the monomer injection gun.

[0012] Furthermore, the fixing plate and the nozzle of the monomer injection gun are an integrally formed structure, and the fixing plate and the side end of the DN10 tee are connected by welding.

[0013] Furthermore, an external thread is provided on the outside of the insertion sleeve, and an internal thread matching the external thread is provided on the inside of the assembly groove. The insertion sleeve and the assembly groove are sealed and fixed through a threaded connection.

[0014] Furthermore, the connecting pipe is made of high-strength alloy steel and its outer surface is provided with an anti-corrosion coating; the three interfaces of the DN10 tee are all provided with chamfers, and the chamfer angle is 30°-60°.

[0015] The beneficial effect is that the setting of the safety valve in the present invention can automatically open and release the pressure when the internal pressure of the single hydraulic support exceeds the rated value, avoiding the single overload fracture caused by unexpected situations such as roof sinking, and effectively preventing equipment damage and roof accident risks. Compared with the traditional method that relies on manual judgment of the timing of pressure relief, which is prone to safety hazards due to operational lag or misjudgment, this tooling improves safety through mechanical automatic response; the pressure gauge can display the internal pressure value of the single hydraulic support in real time and provide digital data, replacing the traditional method of using a wrench to knock and judge based on experience, solving the problem of large errors in manual judgment and the inability to measure To solve the problem of pressure stability, operators can accurately judge whether the single unit is maintaining pressure through intuitive pressure values, avoiding the risk of support failure due to misjudgment of experience, which is especially suitable for the retreat scenario of fully mechanized mining working face with high requirements for pressure stability; the modular design of DN10 tee integrates pressure relief, pressure measurement and injection functions, with small size and reasonable interface layout, suitable for underground working environment with limited space, and compatible with single hydraulic support three-way valves of various specifications; the special features of this integrated tooling system solve the technical shortcomings of traditional single hydraulic support in pressure maintenance detection and overload protection, and are safe, efficient and economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the winch pressure bar drain and pressure detection integrated tooling of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the pressure gauge of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the drain ejector of the present invention; Figure 4 This is a schematic diagram of the disassembled structure of the drain ejector of the present invention; Figure 5 This is a schematic diagram of the disassembled structure of the nozzle of the monomer injection gun of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the safety valve of the present invention.

[0017] In the accompanying drawings: 1. connecting pipe; 2. safety valve; 3. DN10 tee; 4. pressure gauge; 5. drain pin; 6. nozzle of monomer injection gun; 301. threaded mounting groove; 302. mounting through hole; 303. sealing pressure ring; 304. assembly groove; 401. mounting ring; 402. threaded mounting rod; 601. fixing plate; 602. insertion sleeve; 603. circulation cavity. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1 like Figures 1-6 As shown, the winch pressure bar drainage and pressure detection integrated tooling includes a connecting pipe 1; the upper end of the connecting pipe 1 is equipped with a safety valve 2 that automatically opens and discharges pressure to prevent the unit from being overloaded and broken, the upper end of the safety valve 2 is equipped with a DN10 tee 3, the upper end of the DN10 tee 3 is equipped with a pressure gauge 4 that displays the internal pressure value of the unit hydraulic support in real time and provides digital pressure data, the side end of the DN10 tee 3 is equipped with a valve core for tightening the unit three-way valve, and a drainage ejector pin 5 that triggers the injection or pressure relief passage, and the outer end of the DN10 tee 3 away from the drainage ejector pin 5 is equipped with a unit injection gun nozzle 6 that is quickly connected to the injection port of the unit three-way valve to ensure that the tooling is sealed and connected to the unit hydraulic system.

[0020] The lower end of the pressure gauge 4 is fixedly connected to a mounting ring 401, and the lower end of the mounting ring 401 is fixedly connected to a threaded mounting rod 402. A threaded mounting groove 301 that is compatible with the threaded mounting rod 402 is opened at the upper end interface of the DN10 tee 3. The pressure gauge 4 is vertically screwed into the threaded mounting groove 301 at the upper end of the DN10 tee 3 through the threaded mounting rod 402. The mounting ring 401 is located between the pressure gauge 4 and the DN10 tee 3, and plays a positioning and reinforcement role.

[0021] A mounting hole 302 for use with the drain pin 5 is provided at the side interface of the DN10 tee 3. A sealing pressure ring 303 is installed inside the mounting hole 302. The sealing pressure ring 303 is embedded between the inner wall of the mounting hole 302 and the outer circle of the drain pin 5 to form an annular seal.

[0022] The sealing pressure ring 303 is made of rubber material and is installed inside the installation through hole 302 through interference fit to prevent the hydraulic oil from leaking from the installation position of the drain ejector pin 5.

[0023] An assembly groove 304 is provided at the interface of the DN10 tee 3 away from the drain pin 5, and a fixed plate 601 is installed on the outer side of the monomer injection gun nozzle 6 close to the end of the DN10 tee 3, and the axis of the monomer injection gun nozzle 6 is parallel to the axis of the DN10 tee 3 main line.

[0024] An insertion sleeve 602 is installed at the side end of the fixed plate 601 for installation in conjunction with the assembly groove 304. A flow cavity 603 is provided inside the nozzle 6 of the monomer injection gun. The insertion sleeve 602 is inserted into the assembly groove 304 of the DN10 tee 3 from the side.

[0025] The fixing plate 601 and the nozzle 6 of the monomer injection gun are integrally formed, and the fixing plate 601 and the side end of the DN10 tee 3 are connected by welding.

[0026] The connecting pipe 1 is made of high-strength alloy steel and its outer surface is provided with an anti-corrosion coating; the three interfaces of the DN10 tee 3 are all provided with chamfers with an angle of 30°-60° to eliminate stress concentration and prevent cracks at the interfaces due to welding or stress.

[0027] During installation, first connect the upper end of the connecting pipe 1 to the lower end of the safety valve 2 through threads, and make sure to tighten them until there is no leakage; Align the threaded mounting rod 402 of the pressure gauge 4 with the threaded mounting groove 301 at the upper end of the DN10 tee 3, and tighten it clockwise to ensure that the pressure gauge 4 is installed vertically; Insert the drain pin 5 into the installation hole 302 on the side of the DN10 tee 3. The pin head must be fully inserted and trigger the valve core. Then install the sealing ring 303 to ensure a good seal. Align the insertion sleeve 602 of the monomer injection gun nozzle 6 with the assembly groove 304 on the side end of the DN10 tee 3, and seal the fixing plate 601 and the DN10 tee 3 by welding; When in use, quickly insert the nozzle 6 of the monomer injection gun into the injection port of the monomer three-way valve to ensure sealing connection, inject liquid into the monomer hydraulic support through the flow cavity 603 of the monomer injection gun nozzle 6, and observe the pressure value displayed on the pressure gauge 4; When the pressure reaches the set value, stop injecting liquid and record the digital pressure data of pressure gauge 4; If liquid needs to be drained, operate the drain pin 5 to press the valve core of the single three-purpose valve, triggering the pressure relief passage, and the liquid is discharged through the connecting pipe 1; If the pressure exceeds the set value of safety valve 2, safety valve 2 will automatically open to release the pressure to prevent the monomer from being overloaded and broken.

[0028] Example 2 like Figures 1-6 As shown, the winch pressure bar drainage and pressure detection integrated tooling includes a connecting pipe 1; the upper end of the connecting pipe 1 is equipped with a safety valve 2 that automatically opens and discharges pressure to prevent the unit from being overloaded and broken, the upper end of the safety valve 2 is equipped with a DN10 tee 3, the upper end of the DN10 tee 3 is equipped with a pressure gauge 4 that displays the internal pressure value of the unit hydraulic support in real time and provides digital pressure data, the side end of the DN10 tee 3 is equipped with a valve core for tightening the unit three-way valve, and a drainage ejector pin 5 that triggers the injection or pressure relief passage, and the outer end of the DN10 tee 3 away from the drainage ejector pin 5 is equipped with a unit injection gun nozzle 6 that is quickly connected to the injection port of the unit three-way valve to ensure that the tooling is sealed and connected to the unit hydraulic system.

[0029] The lower end of the pressure gauge 4 is fixedly connected to a mounting ring 401, and the lower end of the mounting ring 401 is fixedly connected to a threaded mounting rod 402. A threaded mounting groove 301 that is compatible with the threaded mounting rod 402 is opened at the upper end interface of the DN10 tee 3. The pressure gauge 4 is vertically screwed into the threaded mounting groove 301 at the upper end of the DN10 tee 3 through the threaded mounting rod 402. The mounting ring 401 is located between the pressure gauge 4 and the DN10 tee 3, and plays a positioning and reinforcement role.

[0030] A mounting hole 302 for use with the drain pin 5 is provided at the side interface of the DN10 tee 3. A sealing pressure ring 303 is installed inside the mounting hole 302. The sealing pressure ring 303 is embedded between the inner wall of the mounting hole 302 and the outer circle of the drain pin 5 to form an annular seal.

[0031] The sealing pressure ring 303 is made of rubber material and is installed inside the installation through hole 302 through interference fit to prevent the hydraulic oil from leaking from the installation position of the drain ejector pin 5.

[0032] An assembly groove 304 is provided at the interface of the DN10 tee 3 away from the drain pin 5, and a fixed plate 601 is installed on the outer side of the monomer injection gun nozzle 6 close to the end of the DN10 tee 3, and the axis of the monomer injection gun nozzle 6 is parallel to the axis of the DN10 tee 3 main line.

[0033] An insertion sleeve 602 is installed at the side end of the fixed plate 601 for installation in conjunction with the assembly groove 304. A flow cavity 603 is provided inside the nozzle 6 of the monomer injection gun. The insertion sleeve 602 is inserted into the assembly groove 304 of the DN10 tee 3 from the side.

[0034] An external thread is provided on the outside of the insert sleeve 602 , and an internal thread matching the external thread is provided on the inside of the assembly groove 304 . The insert sleeve 602 and the assembly groove 304 are sealed and fixed via a threaded connection.

[0035] The connecting pipe 1 is made of high-strength alloy steel and its outer surface is provided with an anti-corrosion coating; the three interfaces of the DN10 tee 3 are all provided with chamfers with an angle of 30°-60° to eliminate stress concentration and prevent cracks at the interfaces due to welding or stress.

[0036] During installation, first connect the upper end of the connecting pipe 1 to the lower end of the safety valve 2 through threads, and make sure to tighten them until there is no leakage; Align the threaded mounting rod 402 of the pressure gauge 4 with the threaded mounting groove 301 at the upper end of the DN10 tee 3, and tighten it clockwise to ensure that the pressure gauge 4 is installed vertically; Insert the drain pin 5 into the installation hole 302 on the side of the DN10 tee 3. The pin head must be fully inserted and trigger the valve core. Then install the sealing ring 303 to ensure a good seal. Align the insertion sleeve 602 of the monomer injection gun nozzle 6 with the assembly groove 304 on the side end of the DN10 tee 3, and tighten it clockwise to ensure that the fixing plate 601 and the side end of the DN10 tee 3 are sealed and fixed through the threaded connection; When in use, quickly insert the nozzle 6 of the monomer injection gun into the injection port of the monomer three-way valve to ensure sealing connection, inject liquid into the monomer hydraulic support through the flow cavity 603 of the monomer injection gun nozzle 6, and observe the pressure value displayed on the pressure gauge 4; When the pressure reaches the set value, stop injecting liquid and record the digital pressure data of pressure gauge 4; If liquid needs to be drained, operate the drain pin 5 to press the valve core of the single three-purpose valve, triggering the pressure relief passage, and the liquid is discharged through the connecting pipe 1; If the pressure exceeds the set value of safety valve 2, safety valve 2 will automatically open to release the pressure to prevent the monomer from being overloaded and broken.

Claims

1. The winch pressure bar drain and pressure detection integrated tooling is characterized by: The utility model comprises a connecting pipe (1); a safety valve (2) which automatically opens and releases pressure to prevent the monomer from being broken due to overload is installed on the upper end of the connecting pipe (1); a DN10 tee (3) is installed on the upper end of the safety valve (2); a pressure gauge (4) which displays the internal pressure value of the monomer hydraulic support in real time and provides digital pressure data is installed on the upper end of the DN10 tee (3); a valve core for tightening the monomer three-purpose valve and triggering a liquid discharge ejector pin (5) for liquid injection or pressure relief passage is installed on the side end of the DN10 tee (3); a monomer liquid injection gun nozzle (6) which is quickly connected to the liquid injection port of the monomer three-purpose valve to ensure that the tooling is sealed and connected with the monomer hydraulic system is installed on the outer end of the DN10 tee (3).

2. The winch pressure bar drain and pressure detection integrated tooling according to claim 1 is characterized in that: The lower end of the pressure gauge (4) is fixedly connected to a mounting ring (401), the lower end of the mounting ring (401) is fixedly connected to a threaded mounting rod (402), and the upper end interface of the DN10 tee (3) is provided with a threaded mounting groove (301) adapted to the threaded mounting rod (402).

3. The winch pressure bar drain and pressure detection integrated tooling according to claim 1 is characterized in that: A mounting through hole (302) for use with a drain ejector pin (5) is provided at the side end interface of the DN10 tee (3), and a sealing pressure ring (303) is installed inside the mounting through hole (302).

4. The winch pressure bar drain and pressure detection integrated tooling according to claim 3 is characterized in that: The sealing pressing ring (303) is made of rubber material, and the sealing pressing ring (303) is installed inside the mounting through hole (302) through interference fit.

5. The winch pressure bar drain and pressure detection integrated tooling according to claim 1 is characterized in that: An assembly groove (304) is provided at the interface of the side end of the DN10 tee (3) away from the drain ejector pin (5), and a fixing plate (601) is installed at the outer side of the nozzle (6) of the monomer injection gun close to the end of the DN10 tee (3).

6. The winch pressure bar drain and pressure detection integrated tooling according to claim 5 is characterized in that: An insertion sleeve (602) is installed at the side end of the fixed disk (601) and is inserted into the assembly groove (304) for installation and use. A flow cavity (603) is provided inside the nozzle (6) of the monomer injection gun.

7. The winch pressure bar drain and pressure detection integrated tooling according to claim 6 is characterized in that: The fixed plate (601) and the nozzle (6) of the monomer injection gun are an integrally formed structure, and the fixed plate (601) and the side end of the DN10 tee (3) are connected by welding.

8. The winch pressure bar drain and pressure detection integrated tooling according to claim 6 is characterized in that: An external thread is provided on the outside of the insertion sleeve (602), and an internal thread matching the external thread is provided on the inside of the assembly groove (304). The insertion sleeve (602) and the assembly groove (304) are sealed and fixed via a threaded connection.

9. The winch pressure bar drain and pressure detection integrated tooling according to claim 1 is characterized in that: The connecting pipe (1) is made of high-strength alloy steel, and its outer surface is provided with an anti-corrosion coating; the three interfaces of the DN10 tee (3) are all provided with chamfers, and the chamfer angles are 30°-60°.

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