CN219319680U - Integrated tightness testing device of pressure maintaining valve - Google Patents
Integrated tightness testing device of pressure maintaining valve Download PDFInfo
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- CN219319680U CN219319680U CN202320425475.XU CN202320425475U CN219319680U CN 219319680 U CN219319680 U CN 219319680U CN 202320425475 U CN202320425475 U CN 202320425475U CN 219319680 U CN219319680 U CN 219319680U
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- test head
- fixedly arranged
- pressure maintaining
- maintaining valve
- sealing test
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a collection type tightness testing device of a pressure maintaining valve, which comprises an airtight leak detector, a protective shell and a PLC control cabinet, wherein the airtight leak detector is fixedly arranged at the top of the protective shell, the PLC control cabinet is fixedly arranged at one side of the airtight leak detector, and an electromagnetic valve is fixedly arranged at the bottom end inside the protective shell. According to the utility model, the pipe sealing test head is fixedly arranged at the output end of the second cylinder, the second clamping block is movably connected with the output end of the second cylinder, then the pressure maintaining valve body, the end face sealing test head and the center of the pipe sealing test head on the fixed base are kept consistent in design and assembly, the outer diameter of the pipe sealing test head is set as the lower limit of the outer diameter of the pipe, a small hole with the diameter of about 2mm is also arranged at the axial center and communicated with the second air pipe interface, and then an exhaust groove is formed in the bottom plane of the pipe sealing test head, so that the problem that the pressure maintaining valve body leaks air in sealing and is misjudged to be qualified can be prevented.
Description
Technical Field
The utility model relates to the technical field of pressure maintaining valves, in particular to a collection type tightness testing device of a pressure maintaining valve.
Background
One end of the pressure maintaining valve for automobile air suspension is connected and sealed with the air spring through threads, the other end of the pressure maintaining valve is connected and sealed with the nylon pipe through the function of the pressure maintaining valve, compressed air of the air spring cannot flow out through the air spring before being connected with the nylon pipe after being connected with the air spring, and for the function requirement, the pressure maintaining tightness of the pressure maintaining valve and the tightness after insertion pipe are required to be tested respectively when the air tightness test of a product is made, so that the integrated tightness testing device of the pressure maintaining valve is provided.
The existing airtight test technology is to test the pressure maintaining tightness and the tightness after the insertion pipe through two airtight test devices respectively, the method needs two devices to test respectively, time and labor are wasted, the equipment cost is high, and after the pipe sealing test head is inserted into the inner hole of the pressure maintaining valve, the end face of the pipe sealing test head is attached to two planes of the end face of the pressure maintaining valve to form hard seal, so that the problem that the sealing position of the pressure maintaining valve pipe is judged to be qualified by mistake when air leakage occurs is caused.
Disclosure of Invention
The utility model aims to provide a collection type tightness testing device of a pressure maintaining valve, which is characterized in that a clamping block II is movably connected with the output end of a cylinder II, then the pressure maintaining valve body, an end face sealing testing head and the center of a pipe sealing testing head on a fixed base are used for keeping consistent in design and assembly, the outer diameter of the pipe sealing testing head is set to be the lower limit of the outer diameter of the pipe, a small hole of about 2mm is also arranged in the axial center and communicated with the air pipe interface II, then an air exhaust groove is formed in the bottom plane of the pipe sealing testing head, the pressure maintaining valve body can be prevented from leaking air when being sealed, misjudgment is qualified, the air pipe interface I and the air pipe interface II are respectively connected with an electromagnetic valve, then the working interface of an electromagnetic valve can be used for controlling an airtight leak detector to be communicated with the air pipe interface I or the air pipe interface II, and then an electrical device is controlled by a PLC (programmable logic controller) to realize automatic operation.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a collection formula leakproofness testing arrangement of pressurize valve, includes airtight leak detector, protective housing and PLC switch board, the top fixed mounting of protective housing has airtight leak detector, one side fixed mounting of airtight leak detector has the PLC switch board, the inside bottom fixed mounting of protective housing has the solenoid valve, the bottom fixed mounting of solenoid valve has cylinder two, the output fixed mounting of cylinder two has a pipe seal test head, and one side of pipe seal test head is fixed and is provided with the exhaust groove, one side fixed mounting of cylinder two has the pressurize valve body, one side fixed mounting of pressurize valve body has cylinder one, the output movable mounting of cylinder one has the sealed test head of terminal surface, and the opposite side of the sealed test head of terminal surface is fixed and is provided with the rubber seal pad.
Preferably, a clamping block II is fixedly arranged on the other side of the tube sealing test head, and an air tube interface II is fixedly arranged on the top of the tube sealing test head.
Preferably, a clamping block I is fixedly arranged on one side of the end face sealing test head, and an air pipe interface I is fixedly arranged on the top of the end face sealing test head.
Preferably, the top of solenoid valve is fixed and is provided with test trachea one, the bottom equidistance of solenoid valve is provided with test trachea two.
Preferably, the bottom of the pressure maintaining valve body is fixedly provided with a fixed base, and the bottom of the fixed base is fixedly provided with a supporting base.
Preferably, both sides of the protective housing are provided with conduit through penetration, both sides of the surface of the protective housing are provided with door bodies through hinges in a movable mode, the surfaces of the door bodies are fixedly provided with observation windows, and door locks are fixedly arranged between the observation windows.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The pipe sealing test head is fixedly arranged at the output end of the second air cylinder, the second clamping block is movably connected with the output end of the second air cylinder, then the pressure maintaining valve body, the end face sealing test head and the center of the pipe sealing test head on the fixed base are kept consistent in design and assembly, the outer diameter of the pipe sealing test head is set as the lower limit of the outer diameter of the pipe, a small hole with the diameter of about 2mm is also arranged at the axial center and communicated with the second air pipe interface, and then an exhaust groove is formed in the plane of the bottom of the pipe sealing test head, so that the pressure maintaining valve body can be prevented from leaking when being sealed, and the problem of misjudgment as qualified is solved;
(2) Through the top fixed mounting of protective housing has airtight leak detector, can utilize air pipe interface one and air pipe interface two to be connected with the solenoid valve respectively, then utilize the work interface intercommunication air pipe interface one or air pipe interface two of solenoid valve steerable airtight leak detector, then utilize PLC switch board control electrical equipment to realize automatic operation, adopt integrated structure, test efficiency is high, equipment cost is lower.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic view of a partial structure of a pressure maintaining valve body according to the present utility model;
FIG. 4 is a schematic view of a partial structure of a cylinder II according to the present utility model;
fig. 5 is a schematic view of a partial structure of a cylinder according to the present utility model.
In the figure: 1. an airtight leak detector; 2. a protective shell; 201. a conduit; 202. a door body; 203. an observation window; 204. a door lock; 3. a PLC control cabinet; 4. an electromagnetic valve; 401. testing a first air pipe; 402. testing a second air pipe; 5. a pressure maintaining valve body; 6. a second cylinder; 601. a tube sealing test head; 602. a clamping block II; 603. a second air pipe interface; 604. an exhaust groove; 7. a first cylinder; 701. a first air pipe interface; 702. a rubber gasket; 703. an end face seal test head; 704. a clamping block I; 8. a support base; 801. and (5) fixing the base.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-5, the utility model provides a device for testing the tightness of a pressure maintaining valve, which comprises an airtight leak detector 1, a protective shell 2 and a PLC control cabinet 3, wherein a conduit 201 is arranged on two sides of the protective shell 2 in a penetrating way, a door body 202 is movably arranged on two sides of the surface of the protective shell 2 through hinges, an observation window 203 is fixedly arranged on the surface of the door body 202, and a door lock 204 is fixedly arranged between the observation windows 203;
specifically, as shown in fig. 1 and 2, when in use, by arranging the conduit 201 penetrating through both sides of the protective case 2, the condition inside the protective case 2 can be penetrated by the observation window 203, and then the door lock 204 can be opened by the key to perform maintenance work;
the top of the protective housing 2 is fixedly provided with an airtight leak detector 1, one side of the airtight leak detector 1 is fixedly provided with a PLC control cabinet 3, the bottom end inside the protective housing 2 is fixedly provided with an electromagnetic valve 4, the top of the electromagnetic valve 4 is fixedly provided with a first test air pipe 401, and the bottom of the electromagnetic valve 4 is equidistantly provided with a second test air pipe 402;
specifically, as shown in fig. 1 and 2, when in use, the airtight leak detector 1 is fixedly installed on the top of the protective shell 2, the first air pipe interface 701 and the second air pipe interface 603 can be respectively connected with the electromagnetic valve 4, then the working interface of the airtight leak detector 1 can be controlled by the electromagnetic valve 4 to be communicated with the first air pipe interface 701 or the second air pipe interface 603, then the electrical equipment is controlled by the PLC control cabinet 3 to realize automatic operation, and the airtight leak detector 1 is electrically connected with the PLC control cabinet 3 through a lead, and the electromagnetic valve 4 is electrically connected with the PLC control cabinet 3 through the lead;
the bottom of the electromagnetic valve 4 is fixedly provided with a second air cylinder 6, the output end of the second air cylinder 6 is fixedly provided with a pipe sealing test head 601, one side of the pipe sealing test head 601 is fixedly provided with an exhaust groove 604, the other side of the pipe sealing test head 601 is fixedly provided with a second clamping block 602, the top of the pipe sealing test head 601 is fixedly provided with a second air pipe interface 603, one side of the second air cylinder 6 is fixedly provided with a pressure maintaining valve body 5, the bottom of the pressure maintaining valve body 5 is fixedly provided with a fixed base 801, and the bottom of the fixed base 801 is fixedly provided with a supporting base 8;
specifically, as shown in fig. 2, 3 and 4, when in use, the pipe sealing test head 601 is fixed at the output end of the second cylinder 6, the fixing base 801 can be used for fixing the pressure maintaining valve body 5, the threaded end of the pressure maintaining valve body 5 corresponds to the first cylinder 7 and the end face sealing test head 703 and related components, the insertion pipe end of the pressure maintaining valve body 5 corresponds to the second cylinder 6 and the pipe sealing test head 601 and related components, then the second clamping block 602 is movably connected with the output end of the second cylinder 6, then the centers of the pressure maintaining valve body 5, the end face sealing test head 703 and the pipe sealing test head 601 on the fixing base 801 are kept consistent in design and assembly, the outer diameter of the pipe sealing test head 601 is set as the lower limit of the outer diameter of the pipe, a small hole with the diameter of about 2mm is also arranged at the axial center and communicated with the second air pipe interface 603, then an exhaust groove 604 is formed in the bottom plane of the pipe sealing test head 601, the first cylinder 7 is electrically connected with the PLC control cabinet 3 through a wire, and the second cylinder 6 is electrically connected with the PLC control cabinet 3 through the wire;
one side of the pressure maintaining valve body 5 is fixedly provided with a first air cylinder 7, the output end of the first air cylinder 7 is movably provided with an end face seal test head 703, the other side of the end face seal test head 703 is fixedly provided with a rubber seal pad 702, one side of the end face seal test head 703 is fixedly provided with a first clamping block 704, and the top of the end face seal test head 703 is fixedly provided with a first air pipe interface 701;
specifically, as shown in fig. 2 and 5, when in use, the end face sealing test head 703 is movably mounted at the output end of the first cylinder 7, so that the first clamping block 704 is movably connected with the output end of the first cylinder 7, then the sealing performance of the end face sealing test head 703 is improved by using the rubber sealing pad 702, then the first air pipe interface 701 is movably connected with the second air pipe interface 402, the end part of the end face sealing test head 703 is provided with the groove for placing the rubber sealing pad 702, and a small hole of about 2mm is arranged at the axial center of the groove for communicating with the first air pipe interface 701.
Working principle: when the pressure-maintaining valve is used, firstly, the first cylinder 7 is ejected, the end face seal test head 703 and the rubber seal gasket 702 are made to tightly prop against the threaded end face of the pressure-maintaining valve body 5, and then test air pressure is introduced into the threaded end opening part of the pressure-maintaining valve body 5 through the electromagnetic valve 4, and whether the leakage quantity meets the set requirement is detected: (1) unqualified, the equipment alarms, the program end equipment returns to the initial state (the first cylinder 7 returns), (2) qualified, and the next step is executed according to the program (the first cylinder 7 does not return);
secondly, ejecting through a second cylinder 6, and enabling a pipe sealing test head 601 to be inserted into an inner hole of the pressure maintaining valve body 5;
finally, the test air pressure is introduced into the pressure maintaining valve body 5 through the electromagnetic valve 4, and whether the leakage quantity meets the set requirement is detected: (1) failure, device alarm, program ending device return to initial state (cylinder one 7 and cylinder two 6 back), (2) failure, program ending device return to initial state (cylinder one 7 and cylinder two 6 back).
It should be noted that while the embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides a collection formula leakproofness testing arrangement of pressurize valve, includes airtight leak detector (1), protective housing (2) and PLC switch board (3), its characterized in that: the air-tight leak detector is characterized in that the air-tight leak detector (1) is fixedly arranged at the top of the protective shell (2), the PLC control cabinet (3) is fixedly arranged on one side of the air-tight leak detector (1), the electromagnetic valve (4) is fixedly arranged at the bottom of the inside of the protective shell (2), the second air cylinder (6) is fixedly arranged at the bottom of the electromagnetic valve (4), the pipe sealing test head (601) is fixedly arranged at the output end of the second air cylinder (6), the exhaust groove (604) is fixedly arranged on one side of the pipe sealing test head (601), the pressure-maintaining valve body (5) is fixedly arranged on one side of the second air cylinder (6), the first air cylinder (7) is fixedly arranged on one side of the pressure-maintaining valve body (5), the end face sealing test head (703) is movably arranged at the output end of the first air cylinder (7), and the rubber sealing gasket (702) is fixedly arranged on the other side of the end face sealing test head (703).
2. The collective tightness testing device of a pressure maintaining valve according to claim 1, characterized in that: the other side of the tube sealing test head (601) is fixedly provided with a clamping block II (602), and the top of the tube sealing test head (601) is fixedly provided with an air tube interface II (603).
3. The collective tightness testing device of a pressure maintaining valve according to claim 1, characterized in that: one side of the end face sealing test head (703) is fixedly provided with a clamping block I (704), and the top of the end face sealing test head (703) is fixedly provided with an air pipe interface I (701).
4. The collective tightness testing device of a pressure maintaining valve according to claim 1, characterized in that: the top of solenoid valve (4) is fixed and is provided with test trachea one (401), the bottom equidistance of solenoid valve (4) is provided with test trachea two (402).
5. The collective tightness testing device of a pressure maintaining valve according to claim 1, characterized in that: the pressure maintaining valve is characterized in that a fixing base (801) is fixedly arranged at the bottom of the pressure maintaining valve body (5), and a supporting base (8) is fixedly arranged at the bottom of the fixing base (801).
6. The collective tightness testing device of a pressure maintaining valve according to claim 1, characterized in that: both sides of protective housing (2) all run through and are provided with conduit (201), both sides on protective housing (2) surface all are through hinge movable mounting door body (202), and the surface of door body (202) all is fixed and is provided with observation window (203), all is fixed between observation window (203) and is provided with lock (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320425475.XU CN219319680U (en) | 2023-03-08 | 2023-03-08 | Integrated tightness testing device of pressure maintaining valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320425475.XU CN219319680U (en) | 2023-03-08 | 2023-03-08 | Integrated tightness testing device of pressure maintaining valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219319680U true CN219319680U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320425475.XU Active CN219319680U (en) | 2023-03-08 | 2023-03-08 | Integrated tightness testing device of pressure maintaining valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219319680U (en) |
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2023
- 2023-03-08 CN CN202320425475.XU patent/CN219319680U/en active Active
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