CN111397816A - PE valve air tightness test device - Google Patents

Abstract

The invention discloses a PE valve air tightness test device, which comprises: a base plate; the number of the support rods is four; the testing mechanism comprises four groups of pressing bases and inlet connectors, the pressing bases are located under the inlet connectors, detecting pipes are fixedly installed inside the pressing bases, the surfaces, extending to the outside of the pressing bases, of the detecting pipes are fixedly provided with pressure sensors and pressure display meters, and air inlet pipes are fixedly installed inside the inlet connectors; the invention has simple structure and convenient and rapid operation, can adjust the inflation and pressure maintaining time according to the air tightness requirements of the PE valves to be tested with different specifications, can simultaneously carry out air tightness detection on a plurality of PE valves, has intuitive judgment result, does not require high operation level of operators, has high detection efficiency, does not have any external force which additionally influences the test result on the PE valve to be tested, greatly improves the working efficiency and lightens the labor intensity.

Description

A PE valve air tightness test device

technical field

The invention relates to the technical field of PE valves, in particular to a PE valve air tightness test device.

Background technique

The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, and adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to its function, it can be divided into shut-off valve, check valve, regulating valve, etc. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves used in fluid control systems range from the simplest shut-off valve to the most complex. The various valves used in the automatic control system of the company have a wide variety of varieties and specifications. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, non-standard customized valves and PE valves according to the material. Valves, etc. Generally, in the production of PE valves, it is necessary to conduct air tightness tests on the PE valves after the production is completed.

However, in the current state of the art, the air tightness of the PE valve is often detected by manual methods. Most of the PE valves are placed in water, and then gas is introduced, which not only has problems such as low work efficiency and large errors, but also is easy to detect the PE valve. Damage to the valve.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a PE valve air tightness test device to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a PE valve air tightness test device, comprising:

bottom plate;

a support rod, the support rod is provided with four;

The test mechanism is provided with four groups. The test mechanism includes a compression base and an inlet joint. The compression base is located directly below the inlet joint. A detection tube is fixedly installed inside the compression base. A pressure sensor and a pressure display gauge are fixedly installed on the surface of the pipe extending to the outside of the pressing base, and an air intake pipe is fixedly installed inside the inlet joint;

roof;

clamping mechanism;

PLC controller;

Among them, four of the support rods are fixedly connected to the top of the bottom plate, the top plate is fixedly connected to the top of the four support rods, the test mechanism is fixedly installed on the inner side of the support rods, and the PLC controller is fixedly installed therein. a surface of said support rod;

Wherein, the PLC controller and the pressure sensor are electrically connected.

Preferably, it also includes:

partition;

Wherein, the partition plate is fixedly installed on the inner surface of the support rod.

Preferably, the clamping mechanism includes a motor, the power output end of the motor penetrates the top plate and is fixedly connected with a threaded screw, a sliding nut is slidably mounted on the outside of the threaded screw, and a moving plate is fixedly mounted on the outer wall surface of the sliding nut ;

Wherein, the motor is fixedly mounted on the top surface of the top plate by bolts, the bottom end of the threaded screw rod is rotatably connected between the bearing seat and the partition plate, and the PLC controller and the motor are electrically connected.

Preferably, it also includes:

A buffer mechanism, the buffer mechanism includes a sleeve and a buffer rod, the buffer rod is slidably installed inside the sleeve, a spring is fixedly installed at the bottom end of the inner sleeve, and the bottom end of the buffer rod extends to the inside of the sleeve and is fixed A piston is connected, and the piston and the sleeve are slidably connected;

Wherein, the bottom end of the sleeve is fixedly connected with the top end of the inlet joint, and the top end of the buffer rod is fixedly connected with the bottom end of the moving plate.

Preferably, the test mechanism further comprises an air pump, and the air delivery end of the air pump is fixedly connected with an air delivery branch;

Wherein, the air pump is fixedly installed on the top surface of the top plate, and the PLC controller and the air pump are electrically connected.

Preferably, it also includes:

an alarm, the alarm is fixedly installed on the surface of one of the support rods;

Wherein, the alarm device is electrically connected with the PLC controller.

Preferably, a No. 1 sealing ring is inlaid on the upper end surface of the pressing base, and a No. 2 sealing ring is inlaid on the bottom end surface of the inlet joint.

Preferably, the top end of the detection tube extends to the upper end surface of the pressing base, the bottom end of the detection tube penetrates the pressing base and is fixedly connected to the surface of the bottom plate, the bottom end of the intake pipe extends to the bottom end surface of the inlet joint, and the inlet The top end of the trachea penetrates the inlet joint and is fixedly connected with the gas delivery branch pipe.

Preferably, the gas delivery branch pipe is specifically an elastic corrugated pipe.

Preferably, the end faces of the pressing base and the inlet joint are all tapered structures.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the PE valve is placed vertically on the compression base through the set test mechanism, so that the lower end interface of the PE valve is inserted into the compression base, and then the inlet joint moves down to the upper end interface of the PE valve. The connection between the inlet joint, the PE valve and the compression base is realized, and then the air pump works to input the air into the air branch pipe, and then enters the PE valve from the air inlet pipe, and then enters the detection pipe through the PE valve. The pressure value in the detection tube can be set in advance in the PLC controller. When the gas pressure in the detection tube detected by the pressure sensor reaches the preset value, the air pump can be turned off and the gas delivery can be stopped, which can avoid excessive gas delivery. The damage caused by the PE valve, when the pressure in the detection pipe drops to a certain range, the system will judge that the PE valve to be tested is leaking and the air tightness is unqualified, and the alarm will sound an alarm, and it can also be observed and detected through the pressure display gauge. The gas pressure in the pipe can more intuitively understand the air tightness test result of the PE valve, so that the air tightness of the PE valve can be effectively detected.

2. The invention is simple in structure, convenient and quick in operation, and can adjust the inflation and pressure holding time according to the air tightness requirements of the PE valves to be tested of different specifications, and can perform the air tightness detection of multiple PE valves at the same time, and the judgment results are intuitive and do not require The operator has a high level of operation, high detection efficiency, and there is no additional external force that affects the test results of the PE valve to be tested, which greatly improves work efficiency and reduces labor intensity.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the internal structure schematic diagram of the present invention;

Fig. 3 is the top view of the present invention;

FIG. 4 is a schematic structural diagram of the mobile board of the present invention;

Fig. 5 is the structure schematic diagram of the pressing base of the present invention;

Fig. 6 is the structure schematic diagram of the inlet joint of the present invention;

FIG. 7 is a schematic structural diagram of the buffer mechanism of the present invention.

In the picture: 1000-base plate; 2000-support rod; 2100-alarm; 3000-test mechanism; 3100-air pump; 3110-air branch pipe; 3200-pressing base; Sleeve; 3312-buffer rod; 3313-piston; 3314-spring; 3400-detection tube; 3500-pressure indicator; 3600-No. 5000-top plate; 5000-clamping mechanism; 5100-motor; 5200-moving plate; 5300-threaded screw; 5400-sliding nut;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1:

1-6, the present invention provides a technical solution: a PE valve air tightness test device, including: a bottom plate 1000, a support rod 2000, a test mechanism 3000, a top plate 4000, a clamping mechanism 5000 and a PLC controller 7000 .

The bottom plate 1000 and the top plate 4000 both have circular structures.

Further, the bottom plate 1000 and the top plate 4000 may be made of metal materials or alloy materials such as iron, steel, and stainless steel.

Among them, there are four support rods 2000 .

Further, the support rod 2000 may be made of iron, steel, stainless steel and other metal materials or alloy materials.

Among them, four of the support rods 2000 are fixedly connected around the top of the bottom plate 1000, the top plate 4000 is fixedly connected to the top of the four support rods 2000, the test mechanism 3000 is fixedly installed on the inner side of the support rod 2000, the PLC The controller 7000 is fixedly installed on the surface of one of the support rods 2000 .

Wherein, the PLC controller 7000 and the pressure sensor 3900 are electrically connected.

The test mechanism 3000 is provided with four groups. The test mechanism 3000 includes a compression base 3200 and an inlet joint 3300. The compression base 3200 is located directly below the inlet joint 3300 and between the compression base 3200 and the partition plate 6000. Fixed connection, a detection tube 3400 is fixedly installed inside the compression base 3200, the detection tube 3400 extends to the surface of the outer surface of the compression base 3200, and a pressure sensor 3900 and a pressure display gauge 3500 are fixedly installed, and the inlet connector 3300 is fixed inside Intake pipe 3800 is installed.

Further, the model of the pressure sensor 3900 is MIK-P300.

Further, the PE valve is placed vertically on the compression base 3200, so that the lower end interface of the PE valve is inserted into the compression base 3200, and then the inlet joint 3300 is moved downward to the upper end interface of the PE valve, so that the inlet joint 3300 can be realized. , the connection between the PE valve and the compression base 3200, and then the air pump 3100 works to input the air into the air delivery branch pipe 3110, and then enters the PE valve from the air inlet pipe 3800, and then passes through the PE valve into the detection pipe 3400 At the same time, the pressure value in the detection tube can be set in advance in the PLC controller 7000. When the gas pressure in the detection tube detected by the pressure sensor 3900 reaches the preset value, the air pump 3100 can be turned off to stop the gas delivery, which can avoid The damage to the PE valve caused by too much gas delivery. When the pressure in the detection tube 3400 drops to a certain range, the system will judge that the PE valve to be tested is leaking and the air tightness is unqualified, and the alarm 2100 will sound an alarm. At the same time, the gas pressure in the detection tube 3400 can be observed through the pressure display meter 3500, and the air tightness test result of the PE valve can be more intuitively understood, so that the air tightness of the PE valve can be effectively detected.

Further, the pressing base 3200 and the inlet joint 3300 are on the same vertical axis, which can realize the clamping of the PE valve.

Among them, it also includes: a separator 6000 .

Wherein, the partition plate 6000 is fixedly installed on the inner surface of the support rod 2000 .

The clamping mechanism 5000 includes a motor 5100, the power output end of the motor 5100 penetrates the top plate 4000 and is fixedly connected with a threaded screw 5300, and a sliding nut 5400 is slidably installed on the outside of the threaded screw 5300. The sliding nut 5400 A moving plate 5200 is fixedly mounted on the outer wall surface.

The motor 5100 is fixedly mounted on the top surface of the top plate 4000 by bolts, the bottom end of the threaded screw 5300 is rotatably connected to the partition plate 6000 through the bearing seat, and the PLC controller 7000 is electrically connected to the motor 5100 .

Further, when the motor 5100 is working, it can drive the threaded screw 5300 to rotate, and then it can drive the sliding nut 5400 to move on the threaded screw 5300. When the motor 5100 drives the threaded screw 5300 to rotate clockwise, the sliding nut 5400 will move downward. When the motor 5100 drives the threaded screw 5300 to rotate counterclockwise, the sliding nut 5400 will move upward, and then the PE valve can be clamped by moving the moving plate 5200. The plate 5200 drives the inlet joint 3300 to move upward, and the PE valve can be released for exhausting.

Wherein, the test mechanism 3000 further includes an air pump 3100, and the air delivery end of the air pump 3100 is fixedly connected with an air delivery branch pipe 3110.

Further, the operation of the air pump 3100 can realize the delivery of the gas to the PE valve.

The air pump 3100 is fixedly installed on the top surface of the top plate 4000 , and the PLC controller 7000 and the air pump 3100 are electrically connected.

Wherein, it also includes: an alarm 2100, the alarm 2100 is fixedly installed on the surface of one of the support rods 2000.

Further, when the pressure in the detection tube 3400 drops to a certain range, the system will judge that the PE valve to be tested is leaking and the air tightness is unqualified, and the alarm 2100 will sound an alarm to inform people of the detection results at the first time. .

Wherein, the alarm device 2100 is electrically connected with the PLC controller 7000 .

Wherein, a No. 1 sealing ring 3600 is inlaid on the upper surface of the pressing base 3200 , and a No. 2 sealing ring 3700 is inlaid on the bottom surface of the inlet joint 3300 .

Further, the No. 1 sealing ring 3600 and the No. 2 sealing ring 3700 can ensure the tightness of the connection between the compression base 3200 and the inlet joint 3300 and the PE valve, avoid air leakage at the connection, and ensure the air tightness test. of accuracy.

The top end of the detection tube 3400 extends to the upper surface of the compression base 3200 , the bottom end of the detection tube 3400 penetrates through the compression base 3200 and is fixedly connected to the surface of the bottom plate 1000 , and the bottom end of the intake pipe 3800 extends to the bottom of the inlet joint 3300 On the end surface, the top of the air inlet pipe 3800 penetrates the inlet joint 3300 and is fixedly connected with the air delivery branch pipe 3110 , so that the air inlet pipe 3800 and the air delivery branch pipe 3110 communicate with each other.

Further, the communication between the detection pipe 3400, the PE valve and the intake pipe 3800 can be realized.

Wherein, the gas transmission branch pipe 3110 is specifically an elastic corrugated pipe.

Further, when the moving plate 5200 moves, it will also drive the inlet joint 3300 to move, and the gas delivery branch pipe 3110 will not affect the normal movement of the inlet joint 3300 due to its elasticity.

Wherein, the end faces of the pressing base 3200 and the inlet joint 3300 are both tapered structures.

Further, the upper end of the compression base 3200 is an interface with a guide cone, and the lower end of the inlet joint 3300 is an interface with a guide cone, so that the ports of the compression base 3200 and the inlet joint 3300 are all inserted into the two ends of the PE valve. , so as to complete the clamping and fixing of the PE valve.

Based on the above embodiments, the device has a simple structure, is convenient and quick to operate, and can adjust the inflation and pressure holding time according to the air tightness requirements of the PE valves to be tested of different specifications, and can simultaneously perform air tightness testing of multiple PE valves to determine The results are intuitive, the operators are not required to have a high level of operation, the detection efficiency is high, and there is no additional external force that affects the test results of the PE valve to be tested, which greatly improves work efficiency and reduces labor intensity.

Example 2:

1, 2 and 7, the present invention provides a technical solution: a PE valve air tightness test device, including: a bottom plate 1000, a support rod 2000, a test mechanism 3000, a top plate 4000, a clamping mechanism 5000 and PLC controller 7000.

The bottom plate 1000 and the top plate 4000 both have circular structures.

Further, the bottom plate 1000 and the top plate 4000 may be made of metal materials or alloy materials such as iron, steel, and stainless steel.

Among them, there are four support rods 2000 .

Further, the support rod 2000 may be made of iron, steel, stainless steel and other metal materials or alloy materials.

Among them, four of the support rods 2000 are fixedly connected around the top of the bottom plate 1000, the top plate 4000 is fixedly connected to the top of the four support rods 2000, the test mechanism 3000 is fixedly installed on the inner side of the support rod 2000, the PLC The controller 7000 is fixedly installed on the surface of one of the support rods 2000 .

Wherein, the PLC controller 7000 and the pressure sensor 3900 are electrically connected.

Among them, the buffer mechanism 3310 is also included.

The buffer mechanism 3310 includes a sleeve 3311 and a buffer rod 3312, the buffer rod 3312 is slidably installed inside the sleeve 3311, a spring 3314 is fixedly installed at the bottom end of the sleeve 3311, and the bottom end of the buffer rod 3312 A piston 3313 is extended to the inside of the sleeve 3311 and is fixedly connected, and the piston 3313 is slidably connected with the sleeve 3311 .

Further, when the moving plate 5200 drives the inlet joint 3300 to move down to the upper end interface of the PE valve, the moving plate 5200 acts on the buffer rod 3312. When the inlet joint 3300 contacts the PE valve and stops moving, the buffer rod 3312 will drive the buffer rod 3312. The piston 3313 acts on the spring 3314 and compresses the spring 3314. Since the spring 3314 has very good elasticity, it can reduce the damage to the PE valve when the inlet joint 3300 is lowered, so that the inlet joint 3300 is in elastic contact with the PE valve. , to avoid damage to the PE valve.

The bottom end of the sleeve 3311 is fixedly connected to the top end of the inlet joint 3300 , and the top end of the buffer rod 3312 is fixedly connected to the bottom end of the moving plate 5200 .

Further, the inlet joint 3300 is fixed on the bottom of the moving plate 5200 by the buffer mechanism 3310 .

Based on the above embodiments, since the spring 3314 has very good elasticity, it can reduce the damage to the PE valve when the inlet joint 3300 is lowered, so that the inlet joint 3300 and the PE valve are in elastic contact, avoiding damage to the PE valve. .

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus may be implemented in other manners. The mutual welding or threaded connection or winding connection shown or discussed may be assisted by equipment, such as welding with a welding torch, threaded connection with a wrench, etc. The materials of the components of the device are various, such as aluminum alloy, steel Metal materials such as copper and copper are formed by casting or mechanical stamping.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (10)

1. The utility model provides a PE valve gas tightness test device which characterized in that includes:

a base plate (1000);

the number of the supporting rods (2000) is four;

the testing mechanism (3000), the testing mechanism (3000) is provided with four groups, the testing mechanism (3000) comprises a pressing base (3200) and an inlet joint (3300), the pressing base (3200) is located under the inlet joint (3300), a detection pipe (3400) is fixedly installed inside the pressing base (3200), a pressure sensor (3900) and a pressure display meter (3500) are fixedly installed on the surface of the detection pipe (3400) extending to the outside of the pressing base (3200), and an air inlet pipe (3800) is fixedly installed inside the inlet joint (3300);

a top plate (4000);

a clamping mechanism (5000);

a P L C controller (7000);

wherein, four of the supporting rods (2000) are fixedly connected to the periphery of the top end of the bottom plate (1000), the top plate (4000) is fixedly connected to the top ends of the four supporting rods (2000), the testing mechanism (3000) is fixedly arranged at the inner side of the supporting rods (2000), and the P L C controller (7000) is fixedly arranged on the surface of one of the supporting rods (2000);

wherein, the P L C controller (7000) is electrically connected with the pressure sensor (3900).

2. The PE valve airtightness testing apparatus according to claim 1, further comprising:

a separator (6000);

wherein, the clapboard (6000) is fixedly arranged on the surface of the inner side of the support rod (2000).

3. The PE valve airtightness testing apparatus according to claim 1, wherein: the clamping mechanism (5000) comprises a motor (5100), the power output end of the motor (5100) penetrates through the top plate (4000) and is fixedly connected with a threaded screw rod (5300), a sliding nut (5400) is slidably mounted outside the threaded screw rod (5300), and a moving plate (5200) is fixedly mounted on the surface of the outer wall of the sliding nut (5400);

the motor (5100) is fixedly mounted on the top end surface of the top plate (4000) through bolts, the bottom end of the threaded screw rod (5300) is rotatably connected with the partition plate (6000) through a bearing seat, and the P L C controller (7000) is electrically connected with the motor (5100).

4. The PE valve airtightness testing apparatus according to claim 1, further comprising:

the damping mechanism (3310) comprises a sleeve (3311) and a damping rod (3312), the damping rod (3312) is slidably mounted inside the sleeve (3311), a spring (3314) is fixedly mounted at the bottom end inside the sleeve (3311), the bottom end of the damping rod (3312) extends into the sleeve (3311) and is fixedly connected with a piston (3313), and the piston (3313) is slidably connected with the sleeve (3311);

the bottom end of the sleeve (3311) is fixedly connected with the top end of the inlet joint (3300), and the top end of the buffer rod (3312) is fixedly connected with the bottom end of the moving plate (5200).

5. The PE valve airtightness testing apparatus according to claim 1, wherein: the testing mechanism (3000) further comprises an air pump (3100), and an air delivery branch pipe (3110) is fixedly connected to the air delivery end of the air pump (3100);

the air pump (3100) is fixedly mounted on the top end surface of the top plate (4000), and the P L C controller (7000) is electrically connected with the air pump (3100).

6. The PE valve airtightness testing apparatus according to claim 1, wherein: further comprising:

the alarm (2100) is fixedly arranged on the surface of one of the support rods (2000);

wherein, the alarm (2100) is electrically connected with the P L C controller (7000).

7. The PE valve airtightness testing apparatus according to claim 1, wherein: a first sealing ring (3600) is embedded on the surface of the upper end of the pressing base (3200), and a second sealing ring (3700) is embedded on the surface of the bottom end of the inlet joint (3300).

8. The PE valve airtightness testing apparatus according to claim 1, wherein: the top end of the detection tube (3400) extends to the upper end surface of the pressing base (3200), the bottom end of the detection tube (3400) penetrates through the pressing base (3200) and is fixedly connected to the surface of the bottom plate (1000), the bottom end of the air inlet tube (3800) extends to the bottom end surface of the inlet joint (3300), and the top end of the air inlet tube (3800) penetrates through the inlet joint (3300) and is fixedly connected with the air transmission branch tube (3110).

9. The PE valve airtightness testing apparatus according to claim 5, wherein: the gas transmission branch pipe (3110) is specifically an elastic corrugated pipe.

10. The PE valve airtightness testing apparatus according to claim 1, wherein: the end surfaces of the pressing base (3200) and the inlet joint (3300) are of conical structures.

Images