CN116447407A - Joint device for sealing performance test of straight-through valve - Google Patents
Joint device for sealing performance test of straight-through valve Download PDFInfo
- Publication number
- CN116447407A CN116447407A CN202310374408.4A CN202310374408A CN116447407A CN 116447407 A CN116447407 A CN 116447407A CN 202310374408 A CN202310374408 A CN 202310374408A CN 116447407 A CN116447407 A CN 116447407A
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- valve
- joint device
- valve body
- clamping plate
- straight
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/08—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for attachment of work holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to the field of valve test equipment, and particularly discloses a joint device for a straight-through valve tightness test, which is provided with a fixed seat for fixing a valve body and connecting assemblies symmetrically arranged on two sides of the fixed seat and driven by two-way screw rod assemblies, wherein the two-way screw rod assemblies drive the connecting assemblies to be quickly connected with openings at two ends of the straight-through valve in a threaded screwing way, the operation is simple, the connection and detachment speeds are quick, and the joint device is suitable for mass detection operation; through being equipped with along with grip block removal and pivoted threaded connection head, realize threaded connection head and valve body both sides open-ended and revolve to twist and be connected, wherein, the cover is established in the threaded connection head outside and is rotated the rotary drum of being connected with the grip block, with the rolling gear who rotates the drum transmission and with fixing base fixed connection's fixed rack board, realized the synchronous rotation of threaded connection head when the grip block removes, guarantee the speed of connection and the leakproofness of connection.
Description
Technical Field
The invention relates to the field of valve testing equipment, in particular to a joint device for testing tightness of a straight-through valve.
Background
The valve tightness test is a test for testing the tightness of a valve opening and closing member, a valve seat sealing pair, a valve body and a valve seat member, and generally comprises the following steps: closing each port of the valve, filling liquid test medium into the valve shell, exhausting air in the valve cavity, opening the valve to a full-open position by using a valve design given operating mechanism, gradually pressurizing, and maintaining test pressure according to the time requirement of the table.
When traditional straight-through valve carries out the leakproofness test, need the tester to be connected with the medium business turn over pipe and the valve body exit of testing arrangement by hand, in order to guarantee that the leakproofness of connection is threaded connection mode commonly used and flange connection mode, the two modes need the operating personnel to revolve one by one and twist the operation, and complex operation need consume a large amount of connecting time to the scene of a large amount of tests.
The application provides a straight-through valve is connector device for leakproofness test, realizes medium business turn over pipe and valve body and import and export quick connect and break away from.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide the joint device for the tightness test of the straight-through valve, which can realize the rapid connection and detachment of the medium inlet and outlet pipe and the inlet and outlet of the valve body.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
A joint device for the tightness test of a straight-through valve comprises an operation table; a fixed seat for fixing the valve body is arranged on the operating table; the two sides of the fixed seat are provided with a group of symmetrically arranged connecting components, each connecting component comprises a threaded connector matched with openings at two ends of the valve body, a rotating cylinder is sleeved outside the threaded connector and is transversely and slidably connected with the threaded connector, one group of connecting components are communicated with the water inlet pipe, and the other group of connecting components are communicated with the water outlet pipe; the rotating cylinder is rotationally connected with a clamping plate, and the clamping plate is connected with a bidirectional screw rod assembly for driving the clamping plate to transversely move; the rotating cylinder is connected with a transmission shaft through a first transmission gear set, the transmission shaft is rotationally connected with the clamping plate, the end part of the transmission shaft is fixedly connected with a rolling gear, and the rolling gear is meshed with a fixed rack plate which is arranged in parallel with the bidirectional screw rod assembly.
As a further scheme of the invention, the joint device for the straight-through valve tightness test further comprises a reverse adjusting mechanism, the direction adjusting mechanism comprises a rotating shaft fixedly connected with the fixed seat, the rotating shaft is sleeved with a worm wheel, the worm wheel is meshed with a worm, the right end of the worm is connected with a mounting shaft through a second transmission gear set, the upper part of the mounting shaft is fixedly connected with a ratchet gear, the front side of the ratchet gear is meshed with a movable rack plate, the upper end of the movable rack plate is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with a clamping plate on the right side.
Preferably, the fixing base is provided with a placing groove for placing the valve body, the placing groove is of an L-shaped structure with an opening on the right side, the opening on the right side of the placing groove is nested with a clamping block, and the upper end face of the fixing base is provided with a clamping groove matched with the clamping block.
Preferably, the threaded connector is of a hollow cylinder structure, the outer wall of the front end of the threaded connector is provided with external threads, and the inner sides of openings at two ends of the valve body are provided with internal threads matched with the external threads.
Preferably, the inner side part of the threaded connector, which is positioned on the rotating cylinder, is provided with a sliding ring, the outer side part of the threaded connector, which is positioned on the rotating cylinder, is provided with a limiting ring, the cross section of the sliding ring is in a regular polygon shape, the rotating cylinder is provided with a transverse sliding groove for the sliding ring to transversely slide, and an extrusion spring which is abutted with the sliding ring is arranged in the transverse sliding groove.
Preferably, the outer side of the first transmission gear set is sleeved with a protective cover fixedly connected with the clamping plate, and the protective cover is provided with a through hole for the fixed rack plate to pass through.
Preferably, a rotary joint is mounted at the outer end of the rotary cylinder.
Preferably, the bidirectional screw rod assembly comprises a sliding groove fixed on the operating platform, a double-wire screw rod in threaded connection with the clamping plate is arranged in the sliding groove, and the bidirectional screw rod extends to the end part of the sliding groove and is connected with a screw rod motor.
Preferably, the ratchet gear comprises a rotating disc fixedly connected with the mounting shaft, a rotating cylinder sleeved on the outer side of the rotating disc in a rotating manner is sleeved with the rotating disc, pawls are hinged to the rotating disc, and pawl grooves distributed circumferentially are formed in the inner wall of the rotating cylinder.
Preferably, the outside of the worm and the ratchet gear is sleeved with a supporting cover, the supporting cover is fixed on the operating platform and is abutted with the fixed seat, and a transverse through groove for the connecting rod to transversely slide is formed in the supporting cover.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) According to the invention, the fixed seat for fixing the valve body and the connecting assemblies symmetrically arranged on two sides of the fixed seat and driven by the two-way screw rod assemblies are arranged, the two-way screw rod assemblies drive the connecting assemblies to be quickly connected with the openings at two ends of the through valve in a threaded screwing way, the operation is simple, the connection and detachment speeds are quick, and the device is suitable for mass detection operation.
(2) According to the invention, the threaded connector rotating along with the movement of the clamping plate is arranged, so that the threaded connector is screwed with openings on two sides of the valve body, wherein the rotating cylinder, the rolling gear and the fixed rack plate are sleeved on the outer side of the threaded connector and are in rotating connection with the clamping plate, the rolling gear is in transmission connection with the rotating cylinder, and the fixed rack plate is fixedly connected with the fixed seat, so that the synchronous rotation of the threaded connector during the movement of the clamping plate is realized, and the connection speed and the connection tightness are ensured.
(3) The invention is provided with the rotating shaft which is connected with the fixed seat and is linked with the clamping plate, so that the clamping plate drives the connecting component to be separated from the valve body and then continuously moves to drive the rotating shaft to rotate, and the rotating shaft drives the fixed seat to rotate, thereby realizing the exchange of the inlet and the outlet of the valve body and facilitating the test of the countercurrent tightness of the valve body.
(4) The invention realizes that the rotating shaft can rotate unidirectionally only after the connecting component is separated from the valve body by the ratchet gear, the mounting shaft, the worm and the worm wheel, thereby avoiding the rotation of the connecting component and the valve body in the connecting state and ensuring the safety of the turning operation.
Drawings
FIG. 1 is a schematic perspective view of the front side view of the present invention;
FIG. 2 is a schematic view of a rear side view angle of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic perspective view of a connecting assembly according to the present invention;
FIG. 5 is a schematic cross-sectional view of a connection assembly of the present invention;
FIG. 6 is a schematic perspective view of a rotary drum according to the present invention;
FIG. 7 is a schematic view of an assembled structure of a clamping plate and a rolling gear in the present invention;
FIG. 8 is a schematic view of the assembled structure of the clamping plate and bi-directional screw assembly of the present invention;
FIG. 9 is a schematic diagram of an assembling structure of a fixing base in the present invention;
FIG. 10 is an enlarged schematic view of the structure shown at A in FIG. 3;
FIG. 11 is an enlarged schematic view of the structure shown at B in FIG. 3;
FIG. 12 is a schematic view of the assembled configuration of the ratchet gear and the moving rack plate of the present invention;
FIG. 13 is a schematic view showing an internal structure of a ratchet gear according to the present invention.
The reference numerals in the figures illustrate: 1. an operation table; 2. a valve body; 3. a fixing seat; 301. a placement groove; 302. a clamping block; 303. a clamping groove; 4. a connection assembly; 5. a clamping plate; 501. a through hole; 6. a bi-directional screw assembly; 601. a sliding groove; 602. a two-way screw rod; 603. a screw motor; 7. a threaded connector; 701. an external thread; 702. a limiting ring; 703. a slip ring; 8. a rotating cylinder; 9. extruding a spring; 10. a first drive gear set; 11. a transmission shaft; 12. a mounting plate; 13. a rolling gear; 14. fixing rack plates; 15. a rotating shaft; 16. a worm wheel; 17. a worm; 18. a second drive gear set; 19. a mounting shaft; 20. a ratchet gear; 2001. a rotating disc; 2002. a rotating cylinder; 2003. a pawl; 21. moving the rack plate; 22. a connecting rod; 23. a protective cover; 24. and a support cover.
Detailed Description
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; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 9, in one embodiment of the present invention, a joint device for testing tightness of a through valve includes an operation table 1; a fixed seat 3 for fixing the valve body 2 is arranged on the operating platform 1; the two sides of the fixed seat 3 are provided with a group of symmetrically arranged connecting components 4, each connecting component 4 comprises a threaded connector 7 matched with openings at two ends of the valve body 2, a rotating cylinder 8 is sleeved outside the threaded connector 7 and is transversely and slidably connected with the threaded connector 7, the rotating cylinder 8 of one group of connecting components 4 is communicated with a water inlet pipe, and the rotating cylinder 8 of the other group of connecting components 4 is communicated with a water outlet pipe; the rotating cylinder 8 is rotationally connected with a clamping plate 5, and the clamping plate 5 is connected with a bidirectional screw rod assembly 6 which drives the clamping plate 5 to transversely move; the rotating cylinder 8 is connected with a transmission shaft 11 through a first transmission gear set 10, the transmission shaft 11 is rotationally connected with the clamping plate 5, the end part of the transmission shaft is fixedly connected with a rolling gear 13, and the rolling gear 13 is meshed with a fixed rack plate 14 which is arranged in parallel with the bidirectional screw rod assembly 6.
Specifically, when the straight-through valve is tested, the valve body 2 is fixed on the fixed seat 3, the bidirectional screw rod assembly 6 is started, the bidirectional screw rod assembly 6 drives the clamping plates 5 symmetrically arranged on two sides of the fixed seat 3 to move in opposite directions, so that the threaded connectors 7 of the connecting assembly 4 are close to openings on two sides of the valve body 2, meanwhile, the rolling gear 13 rolls on the fixed rack plate 14, the rolling gear 13 drives the rotary cylinder 8 to rotate through the transmission shaft 11 and the first transmission gear set 10, the rotary cylinder 8 drives the threaded connectors 7 transversely and slidably connected with the rotary cylinder to rotate, the threaded connectors 7 rotate to enter the openings when contacting with the openings of the valve body 2, and the threaded connectors 7 are in threaded connection with the openings of the valve body 2; starting a test, wherein a test water source enters one side of the rotary cylinder 8 through a water inlet pipe and is injected into the valve body 2, and the generated leakage flows out through the rotary cylinder 8 at the other side and then flows out into a leakage measuring device through a water outlet pipe, so that the tightness test of the valve body 2 is realized; the screw thread connector that takes place the rotation when this embodiment through the symmetry setting and relative movement realizes that inlet tube and outlet pipe carry out quick connection intercommunication through coupling assembling 4 and valve body 2, compares manual valve body 2 then revolve alone the connection operation mode of screwing the inlet tube and the outlet pipe of each side, and the scheme of this embodiment is simpler operation, and it is more convenient to install and dismantle, improves whole efficiency of software testing.
Referring to fig. 3 and 9, in the present embodiment, a placement groove 301 for placing the valve body 2 is formed in the fixing base 3, the placement groove 301 is of an L-shaped structure with an opening on the right side, a clamping block 302 is nested in the opening on the right side of the placement groove 301, and a clamping groove 303 matched with the clamping block 302 is formed in the upper end face of the fixing base 3.
Specifically, when the valve body 2 is fixed, one end of the valve body 2 faces the placing groove 301 and is inserted into the placing groove, and then the clamping block 302 is inserted into the clamping groove 303, so that the valve body 2 is rapidly clamped and fixed.
Referring to fig. 4, in the present embodiment, the threaded connector 7 has a hollow cylindrical structure, an external thread 701 is provided on the outer wall of the front end of the threaded connector 7, and an internal thread matching with the external thread 701 is provided on the inner side of the opening at both ends of the valve body 2.
Specifically, conveniently realize threaded connection head 7 and valve body 2 open-ended quick threaded connection, guarantee the leakproofness and the stability of connection.
Referring to fig. 5, in the present embodiment, a sliding ring 703 is disposed at an inner side portion of the threaded connector 7 located on the rotating cylinder 8, a limiting ring 702 is disposed at an outer side portion of the threaded connector 7 located on the rotating cylinder 8, a cross section of the sliding ring 703 is in a regular polygon shape, a lateral sliding groove for the sliding ring 703 to slide laterally is disposed on the rotating cylinder 8, and a compression spring 9 abutting against the sliding ring 703 is disposed in the lateral sliding groove.
Specifically, after the threaded connector 7 contacts with the opening of the valve body 2, the extrusion spring 9 enables the connecting threaded connector 7 to keep contacting with the opening of the valve body 2, and meanwhile, the rotating cylinder 8 drives the threaded connector 7 to rotate, so that the external thread 701 of the threaded connector 7 is easier to screw into the thread groove at the opening of the valve body 2, and the connecting efficiency is improved.
Referring to fig. 7, in the present embodiment, a mounting plate 12 is rotatably connected to a driving shaft 11 and is vertically and fixedly connected to a clamping plate 5, and the clamping plate 5 is provided with a through hole 501 for passing through a fixed rack plate 14.
Specifically, the drive shaft 11 is stably fixed, so that the rolling gear 13 stably rolls on the fixed rack plate 14, and at the same time, the fixed rack plate 14 does not interfere with the holding plate 5.
Referring to fig. 3, in the present embodiment, a protective cover 23 fixedly connected to the clamping plate 5 is sleeved on the outer side of the first transmission gear set 10, and a through hole for passing through the fixed rack plate 14 is formed in the protective cover 23.
In particular, the first transmission gear set 10 is protected with a good dust-proof effect.
In this embodiment, a rotary joint is mounted to the outer end of the rotary drum 8.
Specifically, the rotary cylinder 8 is conveniently communicated with an external water inlet pipe or an external water outlet pipe in a rotary manner, and the external water pipe is prevented from influencing the rotation of the rotary cylinder 8.
Referring to fig. 9, in the present embodiment, the bidirectional screw assembly 6 includes a sliding groove 601 fixed on the console 1, a double-wire screw 602 screwed with the clamping plate 5 is disposed in the sliding groove 601, and the bidirectional screw 602 extends to an end of the sliding groove 601 and is connected with a screw motor 603.
Specifically, the screw motor 603 drives the bidirectional screw 602 to rotate, and the bidirectional screw 602 drives the symmetrically arranged clamping plates 5 to move in opposite directions or in opposite directions, so that the connection assembly 4 and the valve body 2 are connected and disconnected.
Referring to fig. 10-13, in another embodiment of the present invention, the joint device for testing tightness of a through valve further includes a reverse adjustment mechanism, the direction adjustment mechanism includes a rotation shaft 15 fixedly connected with the fixing base 3, the rotation shaft 15 is sleeved with a worm wheel 16, the worm wheel 16 is meshed with a worm 17, a right end of the worm 17 is connected with a mounting shaft 19 through a second transmission gear set 18, an upper portion of the mounting shaft 19 is fixedly connected with a ratchet gear 20, a front side of the ratchet gear 20 is meshed with a movable rack plate 21, an upper end of the movable rack plate 21 is fixedly connected with a connecting rod 22, and the connecting rod 22 is fixedly connected with the clamping plate 5 on the right side.
Specifically, after the bidirectional screw rod assembly 6 drives the clamping plate 5 to move back to separate the connecting assembly 4 from the valve body 2, the clamping plate 5 is continuously driven to move back to the right, the clamping plate 5 drives the movable rack plate 21 to move right through the connecting rod 22, the movable rack plate 21 drives the mounting shaft 19 to rotate through the ratchet gear 20, the mounting shaft 19 drives the worm 17 to rotate through the second transmission gear set 18, the worm 17 drives the rotating shaft 15 to rotate through the worm wheel 16, and the rotating shaft 15 drives the fixing seat 3 to rotate one hundred eighty degrees, so that openings at two ends of the valve body 2 are exchanged; then, the bidirectional screw rod assembly 6 is started again, and the tightness test is carried out on the valve body 2 after the inlet and the outlet are exchanged, so that the tightness of the valve body 2 in the countercurrent is tested.
In this embodiment, the ratchet gear 20 includes a rotating disc 2001 fixedly connected to the mounting shaft 19, a rotating cylinder 2002 rotatably sleeved on the rotating disc 2001 is sleeved on the outer side of the rotating disc 2001, pawls 2003 are hinged on the rotating disc 2001, and circumferentially distributed pawl grooves are formed in the inner wall of the rotating cylinder 2002.
Specifically, the ratchet gear 20 rotates when the movable rack plate 21 moves to the right, and the ratchet gear 20 does not rotate when the movable rack plate 21 moves to the left, so that the fixed seat 3 does not rotate when the connecting assembly 4 performs connecting movement, and after the connecting assembly is separated, the fixed seat 3 rotates and turns around, and the inlet and outlet of the valve body 2 are exchanged.
Referring to fig. 1 and 11, in the present embodiment, a supporting cover 24 is sleeved outside the worm 17 and the ratchet gear 20, the supporting cover 24 is fixed on the console 1 and abuts against the fixing base 3, and a transverse through slot for the connecting rod 22 to slide transversely is formed in the supporting cover 24.
Specifically, stability when improving fixing base 3 rotation is dustproof and protection to drive assembly simultaneously.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (10)
1. The joint device for the tightness test of the straight-through valve is characterized by comprising an operation table (1); a fixed seat (3) for fixing the valve body (2) is arranged on the operating platform (1); a group of symmetrically arranged connecting assemblies (4) are arranged on two sides of the fixed seat (3), each connecting assembly (4) comprises a threaded connector (7) matched with openings at two ends of the valve body (2), a rotating cylinder (8) is sleeved outside each threaded connector (7) and is transversely and slidably connected with the threaded connector, the rotating cylinder (8) of one group of connecting assemblies (4) is communicated with the water inlet pipe, and the rotating cylinder (8) of the other group of connecting assemblies (4) is communicated with the water outlet pipe; the rotary cylinder (8) is rotationally connected with a clamping plate (5), and the clamping plate (5) is connected with a bidirectional screw rod assembly (6) for driving the clamping plate (5) to transversely move; the rotating cylinder (8) is connected with a transmission shaft (11) through a first transmission gear set (10), the transmission shaft (11) is rotationally connected with the clamping plate (5), the end part of the transmission shaft is fixedly connected with a rolling gear (13), and the rolling gear (13) is meshed with a fixed rack plate (14) which is arranged in parallel with the bidirectional screw rod assembly (6).
2. The joint device for the straight-through valve tightness test according to claim 1, further comprising a reverse adjusting mechanism, wherein the direction adjusting mechanism comprises a rotating shaft (15) fixedly connected with the fixing seat (3), the rotating shaft (15) is sleeved with a worm wheel (16), the worm wheel (16) is meshed with a worm (17), the right end of the worm (17) is connected with a mounting shaft (19) through a second transmission gear set (18), the upper part of the mounting shaft (19) is fixedly connected with a ratchet gear (20), the front side of the ratchet gear (20) is meshed with a movable rack plate (21), the upper end of the movable rack plate (21) is fixedly connected with a connecting rod (22), and the connecting rod (22) is fixedly connected with a clamping plate (5) on the right side.
3. The joint device for the straight-through valve tightness test according to claim 1, wherein the fixing base (3) is provided with a placing groove (301) for placing the valve body (2), the placing groove (301) is of an L-shaped structure with an opening on the right side, a clamping block (302) is nested at the opening on the right side of the placing groove (301), and the upper end face of the fixing base (3) is provided with a clamping groove (303) matched with the clamping block (302).
4. The joint device for testing tightness of a through valve according to claim 1, wherein the threaded connector (7) is of a hollow cylinder structure, an external thread (701) is arranged on the outer wall of the front end of the threaded connector (7), and internal threads matched with the external thread (701) are arranged on the inner sides of openings at two ends of the valve body (2).
5. The joint device for testing tightness of a through valve according to claim 4, wherein the inner side of the threaded connector (7) located on the rotary cylinder (8) is provided with a sliding ring (703), the outer side of the threaded connector (7) located on the rotary cylinder (8) is provided with a limiting ring (702), the cross section of the sliding ring (703) is in a regular polygon, the rotary cylinder (8) is provided with a transverse sliding groove for the sliding ring (703) to slide transversely, and an extrusion spring (9) abutting against the sliding ring (703) is arranged in the transverse sliding groove.
6. The joint device for testing tightness of a through valve according to claim 1, wherein a protective cover (23) fixedly connected with the clamping plate (5) is sleeved on the outer side of the first transmission gear set (10), and a through hole for the fixed rack plate (14) to pass through is formed in the protective cover (23).
7. The joint device for through valve tightness test according to claim 1, wherein a rotary joint is mounted at the outer end of the rotary cylinder (8).
8. The joint device for testing tightness of a through valve according to claim 1, wherein the bidirectional screw assembly (6) comprises a sliding groove (601) fixed on the operating table (1), a double-wire screw (602) in threaded connection with the clamping plate (5) is arranged in the sliding groove (601), and the bidirectional screw (602) extends to the end of the sliding groove (601) and is connected with a screw motor (603).
9. The joint device for the straight-through valve tightness test according to claim 2, wherein the ratchet gear (20) comprises a rotating disc (2001) fixedly connected with the mounting shaft (19), a rotating cylinder (2002) sleeved and connected with the rotating disc (2001) in a rotating way is sleeved outside the rotating disc (2001), pawls (2003) are hinged on the rotating disc (2001), and pawl grooves distributed in a circumferential way are formed in the inner wall of the rotating cylinder (2002).
10. The joint device for the straight-through valve tightness test according to claim 2, wherein a supporting cover (24) is sleeved outside the worm (17) and the ratchet gear (20), the supporting cover (24) is fixed on the operating platform (1) and is abutted to the fixed seat (3), and a transverse through groove for the connecting rod (22) to transversely slide is formed in the supporting cover (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310374408.4A CN116447407B (en) | 2023-04-10 | 2023-04-10 | Joint device for sealing performance test of straight-through valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310374408.4A CN116447407B (en) | 2023-04-10 | 2023-04-10 | Joint device for sealing performance test of straight-through valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116447407A true CN116447407A (en) | 2023-07-18 |
| CN116447407B CN116447407B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310374408.4A Active CN116447407B (en) | 2023-04-10 | 2023-04-10 | Joint device for sealing performance test of straight-through valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN116447407B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118549058A (en) * | 2024-04-26 | 2024-08-27 | 纽顺阀门集团有限公司 | Performance detection device and method for industrial valve |
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| WO2014180152A1 (en) * | 2013-05-06 | 2014-11-13 | 南京林业大学 | Performance test device for mechanical seal |
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| CN218180499U (en) * | 2022-08-22 | 2022-12-30 | 南京长迅机械设计制造有限公司 | Clamping tool for valve pressure tester |
| CN218470175U (en) * | 2022-10-05 | 2023-02-10 | 福建空分气体有限公司 | Pressure test tool for valve |
| CN115752957A (en) * | 2022-11-29 | 2023-03-07 | 华能山东发电有限公司 | Automatic testing device for valve leakage rate |
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| CN209745552U (en) * | 2019-04-18 | 2019-12-06 | 吉林精诚工程检测有限公司 | Improved valve experiment detection equipment |
| WO2021027002A1 (en) * | 2019-08-12 | 2021-02-18 | 大连理工大学 | Ultra-low-temperature medium dynamic sealing test device |
| CN214040497U (en) * | 2020-11-06 | 2021-08-24 | 北京楚海科技有限公司 | Fastening device for hydrostatic testing machine of valve |
| CN214162034U (en) * | 2020-12-31 | 2021-09-10 | 王守杰 | Double-end assembling device for sealing and pressure testing of welded pipe fittings |
| CN214621706U (en) * | 2021-02-07 | 2021-11-05 | 宁波聚洋物联科技有限公司 | Pressure testing device for detecting ship valve |
| CN113758659A (en) * | 2021-11-10 | 2021-12-07 | 济宁安泰矿山设备制造有限公司 | Valve airtightness detection platform |
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| CN218470175U (en) * | 2022-10-05 | 2023-02-10 | 福建空分气体有限公司 | Pressure test tool for valve |
| CN115752957A (en) * | 2022-11-29 | 2023-03-07 | 华能山东发电有限公司 | Automatic testing device for valve leakage rate |
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| CN118549058A (en) * | 2024-04-26 | 2024-08-27 | 纽顺阀门集团有限公司 | Performance detection device and method for industrial valve |
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| CN116447407B (en) | 2023-11-28 |
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