CN212251623U - Gas communication joint and detection equipment - Google Patents
Gas communication joint and detection equipment Download PDFInfo
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- CN212251623U CN212251623U CN202021570870.XU CN202021570870U CN212251623U CN 212251623 U CN212251623 U CN 212251623U CN 202021570870 U CN202021570870 U CN 202021570870U CN 212251623 U CN212251623 U CN 212251623U
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Abstract
The utility model provides a gas intercommunication connects belongs to the circulation of gas technical field, including first valve body and second valve body. A vent hole used for communicating equipment is formed in the top of the first valve body, and a first valve rod is arranged in the first valve body in an axially sliding mode. The second valve body is positioned below the first valve body and hermetically sleeved on the first valve body, and the second valve body is provided with a gas transmission hole for communicating an external pipeline; a second valve rod is arranged in the second valve body in a sliding mode along the axial direction; the end parts of the first valve rod and the second valve rod, which are far away from each other, are respectively connected with a first elastic part and a second elastic part; the second valve rod opens and closes the gas transmission hole through the second elastic piece. The second valve rod drives the first valve rod to move, and the air delivery hole and the air vent hole are opened and communicated. The utility model also provides a check out test set. The utility model provides a gaseous intercommunication can be realized carrying out gaseous intercommunication between different equipment and the external pipeline to the gas intercommunication joint, need not to customize specific device, and simple installation is and the suitability is stronger.
Description
Technical Field
The utility model belongs to the technical field of the gas circulation, more specifically say, relate to gas intercommunication connects and check out test set.
Background
With the increasing number of gas-insulated switchgear units, SF6The more the gas is usedThe larger. SF6Leakage of gas is one of the common defects in the daily operation of high voltage insulation equipment. When SF6When the gas concentration is lower than a certain value, the insulation performance in the insulation equipment is reduced until an accident occurs. Therefore, the SF in the insulating equipment needs to be treated in the daily use process6And detecting the gas concentration. Because different equipment volumes are different, the positions of the vent holes are different, the existing communication joint which needs to be customized is required to realize the gas delivery, the applicability of the device is poor, and a great deal of inconvenience is brought to the work.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gaseous intercommunication connects, aims at solving and needs the specific intercommunication of customization to connect, just can realize gaseous transport, the relatively poor problem of suitability of device.
In order to achieve the above object, the utility model adopts the following technical scheme: providing a gas communication joint comprising:
the top of the first valve body is provided with a vent hole for communicating equipment, and a first valve rod is arranged in the first valve body in a sliding manner along the axial direction;
the second valve body is positioned below the first valve body, hermetically sleeved on the first valve body and provided with a gas transmission hole for communicating with an external pipeline; a second valve rod is arranged in the second valve body in a sliding mode along the axial direction; the end parts, far away from the first valve rod and the second valve rod, of the first valve rod and the second valve rod are respectively connected with a first elastic piece and a second elastic piece; the first valve rod opens and closes the vent hole through the first elastic piece, and the second valve rod opens and closes the gas transmission hole through the second elastic piece;
the second valve rod drives the first valve rod to move, and the first valve rod is used for enabling the air delivery hole and the air vent hole to be opened and communicated.
As another embodiment of the present application, a first clamping table and a second clamping table are respectively arranged on inner walls of the first valve body and the second valve body, and the first valve rod abuts against the first clamping table by means of the first elastic member to seal the first valve body; the second valve rod abuts against the second clamping table through the second elastic piece and is used for sealing the second valve body.
As another embodiment of the present application, the end portions of the first valve rod and the second valve rod, which are far away from each other, are respectively provided with a first chuck and a second chuck; the first elastic piece and the second elastic piece are respectively connected to the first chuck and the second chuck; the first chuck and the second chuck are used for abutting against the first clamping table and the second clamping table respectively.
As another embodiment of the present application, the ends of the first chuck and the second chuck are each provided with a sealing bevel.
As another embodiment of the present application, the first clamping table is integrally formed with the first valve body; the second clamping table and the second valve body are integrally formed.
As another embodiment of the present application, a seal pad layer is fixed to inner side surfaces of the first clamping table and the second clamping table.
As another embodiment of the present application, a retainer for being caught on an outer periphery of the first valve body is installed at an end portion of the second valve body.
As another embodiment of this application, chucking spare is the location pearl, and is a plurality of the location pearl is followed the circumference of second valve body sets up, the peripheral face of first valve body offer be used for with a plurality of the draw-in groove of location pearl joint.
As another embodiment of this application, be fixed with on the inner wall of second valve body and be used for leaning on the seal cover of first valve body periphery, the second ka tai is located on the inner wall of seal cover.
As another embodiment of this application, first valve rod with all the cover is equipped with the sliding sleeve on the second valve rod, the sliding sleeve pass through a plurality of dead levers with the inner wall of first valve body with the inner wall fixed connection of second valve body.
As another embodiment of the present application, the first valve rod is disposed along an axial direction of the first valve body, and the second valve rod is disposed along an axial direction of the second valve body.
As another embodiment of the application, the end parts of the first valve body and the second valve body are respectively in threaded connection with a first connecting plate and a second connecting plate, the first connecting plate and the vent hole are arranged on the first connecting plate in a penetrating manner, and the first elastic piece abuts against the side surface of the first connecting plate; the air delivery hole is arranged on the second connecting plate in a penetrating mode, and the second elastic piece abuts against the side face of the second connecting plate.
The utility model provides a gas intercommunication connects beneficial effect lies in: compared with the prior art, the utility model discloses seted up the air vent on the top of first valve body in the gas intercommunication connects, the axial slip of first valve body is followed to first valve rod, is equipped with first elastic component on first valve rod, and the air vent is opened and close through first elastic component to first valve rod.
The second valve body is positioned below the first valve body and is used for being sleeved on the first valve body in a sealing mode, and the second valve body is also provided with an air delivery hole. The second valve rod slides along the axial direction of the second valve body, and a second elastic piece is connected to the second valve rod. The second valve rod opens and closes the gas transmission hole through a second elastic piece, and the first elastic piece and the second elastic piece are respectively positioned at the end parts, far away from the first valve rod and the second valve rod.
When the valve is used, when the first valve body and the second valve body are not connected, the first valve rod blocks the first valve body under the action of the first elastic piece, and the second valve rod blocks the second valve body under the action of the second elastic piece. When the second valve body is sleeved on the first valve body in a sealing mode, the second valve rod is in contact with the first valve rod and drives the first valve rod to move, the first elastic piece and the second elastic piece are compressed and contracted under the driving of the second valve rod, a channel for gas circulation is formed between the first valve body and the second valve body, and the gas transmission hole and the vent hole are opened and communicated.
And when the second valve body is pulled out from the first valve body after the gas circulation is finished, the vent hole and the gas transmission hole are in a sealed state again. In this application, can realize carrying out gaseous intercommunication between different equipment and the external pipeline, need not to customize specific device, simple installation and suitability are stronger.
A second aspect of the embodiments of the present invention provides a detection apparatus, including the gas communication joint.
The utility model provides a check out test set's beneficial effect lies in: compared with the prior art, the utility model discloses seted up the air vent in the check out test set on the top of first valve body, first valve rod is equipped with first elastic component along the endwise slip of first valve body on first valve rod, and first valve rod opens and close first valve body through first elastic component.
The second valve body is positioned below the first valve body and is used for being sleeved on the first valve body in a sealing mode, and the second valve body is also provided with an air delivery hole. The second valve rod slides along the axial direction of the second valve body, and a second elastic piece is connected to the second valve rod. The second valve rod opens and closes the second valve body through a second elastic piece, and the first elastic piece and the second elastic piece are respectively positioned at the end parts, far away from the first valve rod and the second valve rod.
When the valve is used, when the first valve body and the second valve body are not connected, the first valve rod blocks the first valve body under the action of the first elastic piece, and the second valve rod blocks the second valve body under the action of the second elastic piece. When the second valve body is sleeved on the first valve body in a sealing mode, the second valve rod is in contact with the first valve rod and drives the first valve rod to move, the first elastic piece and the second elastic piece are compressed and contracted under the driving of the second valve rod, a channel for gas circulation is formed between the first valve body and the second valve body, and the gas transmission hole and the vent hole are opened and communicated.
And when the second valve body is pulled out from the first valve body after the gas circulation is finished, the vent hole and the gas transmission hole are in a sealed state again. In this application, can realize carrying out gaseous intercommunication between different equipment and the external pipeline, need not to customize specific device, simple installation and suitability are stronger.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a gas communication joint according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the second embodiment of the present invention when the first valve body and the second valve body are separated;
fig. 3 is a schematic structural diagram of the third embodiment of the present invention when the first valve body and the second valve body are separated;
fig. 4 is a schematic connection diagram of a first valve body and a seal cushion layer according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of the fifth embodiment of the present invention when the first valve body and the second valve body are separated.
In the figure: 1. a first valve body; 2. a vent hole; 3. a positioning bead; 4. a first valve stem; 5. a first elastic member; 6. a first chuck table; 7. a first chuck; 8. a second valve stem; 9. a second chuck; 10. a second elastic member; 11. a gas transmission hole; 12. sealing sleeves; 13. a second chuck table; 14. a second valve body; 15. sealing the cushion layer; 16. a card slot; 17. fixing the rod; 18. a sliding sleeve; 19. a first connecting plate; 20. a second connecting plate.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2, the gas communication joint provided by the present invention will now be described. The gas communication joint comprises a first valve body 1 and a second valve body 14. The top of the first valve body 1 is provided with a vent hole 2 for communicating with equipment in a penetrating manner, and the first valve body 1 is internally provided with a first valve rod 4 along the axial direction in a sliding manner. The second valve body 14 is positioned below the first valve body 1 and hermetically sleeved on the first valve body 1, and the second valve body 14 is provided with a gas transmission hole 11 for communicating with an external pipeline; a second valve rod 8 is arranged in the second valve body 14 in a sliding mode along the axial direction; the ends of the first valve rod 4 and the second valve rod 8 which are far away from each other are respectively connected with a first elastic piece 5 and a second elastic piece 10; the first valve rod 4 opens and closes the vent hole 2 through the first elastic piece 5, and the second valve rod 8 opens and closes the gas transmission hole 11 through the second elastic piece 10; the second valve rod 8 drives the first valve rod 4 to move, so that the air delivery hole 11 and the air vent hole 2 are opened and communicated.
The utility model provides a gas intercommunication connects beneficial effect lies in: compared with the prior art, the utility model discloses air vent 2 has been seted up on the top of first valve body 1 in the gas intercommunication connects, and first valve rod 4 is equipped with first elastic component 5 along the endwise slip of first valve body 1 on first valve rod 4, and first valve rod 4 opens and close air vent 2 through first elastic component 5.
The second valve body 14 is located below the first valve body 1 and is used for being hermetically sleeved on the first valve body 1, and the second valve body 14 is also provided with an air delivery hole 11. The second valve rod 8 slides along the axial direction of the second valve body 14, and the second elastic member 10 is connected to the second valve rod 8. The second valve rod 8 opens and closes the gas transmission hole 11 through a second elastic piece 10, and the first elastic piece 5 and the second elastic piece 10 are respectively positioned at the end parts of the first valve rod 4 and the second valve rod 8 which are far away from each other.
In use, when the first valve body 1 and the second valve body 14 are not connected, the first valve rod 4 blocks the first valve body 1 under the action of the first elastic piece 5, and the second valve rod 8 blocks the second valve body 14 under the action of the second elastic piece 10. When the second valve body 14 is closely sleeved on the first valve body 1, the second valve rod 8 is in contact with the first valve rod 4 and drives the first valve rod 4 to move, the first elastic part 5 and the second elastic part 10 are compressed and contracted under the driving of the second valve rod 8, a channel for gas circulation is formed between the first valve body 1 and the second valve body 14, and the gas transmission hole 11 and the vent hole 2 are opened and communicated.
Gas can flow between the equipment and the external pipeline under the action of the pressure difference, and after the gas circulation is completed, the second valve body 14 is drawn out of the first valve body 1, and the vent hole 2 and the gas transmission hole 11 are in a sealed state again. In this application, can realize carrying out gaseous intercommunication between different equipment and the external pipeline, need not to customize specific device, simple installation and suitability are stronger.
In this application, when the first valve rod 4 abuts against the inner side surface of the first clamping table 6, gas cannot enter the vent hole 2 from the outside of the first valve body 1 through the first valve rod 4. The first valve cavity is arranged in the first valve body 1, and the vent hole 2 is communicated with the first valve cavity. The end part of the first valve rod 4 and the first elastic part 5 are both located in the first valve cavity, in an initial state, the first elastic part 5 and the second elastic part 10 are both in a pressed state, under the action of the first elastic part 5, the end part of the first valve rod 4 abuts against the first clamping table 6, if the pressure of gas in the equipment is greater than the external atmospheric pressure, the gas in the equipment can also act on the first valve rod 4, the first valve cavity is finally sealed, the gas in the equipment cannot be discharged, and the action mechanism of the second valve rod 8 and the second clamping table 13 is similar to that of the above.
As a specific embodiment of the gas communication joint provided by the present invention, please refer to fig. 1 to 5, wherein a first clamping table 6 and a second clamping table 13 are respectively disposed on the inner walls of the first valve body 1 and the second valve body 14, and the first valve rod 4 is abutted against the first clamping table 6 by means of the first elastic member 5 for plugging the first valve body 1; the second valve rod 8 rests by means of a second spring element 10 against a second stop 13 for closing off the second valve body 14. When first valve rod 4 and first ka tai 6 clearance set up, first valve body 1 is opened, and when first valve rod 4 supported on first ka tai 6 with the help of first elastic component 5, first valve body 1 closed. The second valve body 14 is opened and closed in a similar manner to the first valve body 1.
As a specific embodiment of the gas communication joint provided by the present invention, please refer to fig. 1 to 5, wherein the end portions of the first valve rod 4 and the second valve rod 8 away from each other are respectively provided with a first chuck 7 and a second chuck 9; the first elastic piece 5 and the second elastic piece 10 are respectively connected to the first chuck 7 and the second chuck 9; the first chuck 7 and the second chuck 9 are intended to abut against the first chuck table 6 and the second chuck table 13, respectively. In order to enable the first valve rod 4 and the second valve rod 8 to tightly abut against the first clamping table 6 and the second clamping table 13 and to plug the first valve body 1 and the second valve body 14, the elastic modulus of the first elastic piece 5 and the second elastic piece 10 is large, and the large elastic modulus can also plug the first valve body 1 and the second valve body 14 quickly when the second valve body 14 is pulled out of the first valve body 1, so that excessive overflow of gas in equipment and an external pipeline is prevented, the environment is prevented from being polluted, and the diameter of the elastic pieces is large.
Meanwhile, the first valve rod 4 and the first clamping table 6 as well as the second valve rod 8 and the second clamping table 13 are arranged at intervals, so that a gas circulation channel is formed, namely the diameters of the first valve rod 4 and the second valve rod 8 are not too large easily, on the basis, the end parts, far away from the first valve rod 4 and the second valve rod 8, of the first clamping disc 7 and the second clamping disc 9 are fixed respectively, the first elastic piece 5 is located between the first clamping disc 7 and the first valve body 1, and the second elastic piece 10 is located between the second clamping disc 9 and the second valve body 14. The diameter of the first chuck 7 is larger than that of the first valve rod 4, and the diameter of the second chuck 9 is larger than that of the second valve rod 8, so that the connection reliability is ensured.
As a specific embodiment of the gas communication joint provided by the present invention, the end portions of the first chuck 7 and the second chuck 9 are both provided with a sealing inclined surface. The first clamping table 6 and the second clamping table 13 are oppositely arranged, the first clamping table 6 and the second clamping table 13 are vertically and gradually increased from the direction of mutually approaching the cross sections of the first valve rod 4 and the second valve rod 8, the first clamping table 6 and the second clamping table 13 are respectively arranged along the circumferential direction of the inner walls of the first valve body 1 and the second valve body 14, and when the first valve rod 4 and the second valve rod 8 are not in contact, the first chuck 7 and the second chuck 9 respectively abut against specific positions on the first clamping table 6 and the second clamping table 13.
In order to prevent gas from overflowing from the first valve body 1 and the second valve body 14, sealing inclined planes are arranged at the end parts of the first chuck 7 and the second chuck 9, which are close to each other, the sealing inclined planes on the first chuck 7 are attached to the inner side surface of the first clamping table 6, and the sealing inclined planes on the second chuck 9 are attached to the inner side surface of the second clamping table 13. Through setting up sealed inclined plane, improved the leakproofness to prevent gaseous the spilling over. For convenience of understanding, chamfers can be arranged at the end parts of the first chuck 7 and the second chuck 9, which are close to each other, the angle of the chamfers depends on the angles of the first clamping table 6 and the second clamping table 13, and the guide inclined planes on the chamfers are sealing inclined planes.
As a specific embodiment of the gas communication joint provided by the present invention, the first clamping platform 6 is integrally formed with the first valve body 1; the second chuck 13 is integrally formed with the second valve body 14. First ka tai 6 and second ka tai 13 can be fixed respectively on the inner wall of first valve body 1 and second valve body 14, when the pressure of equipment and external pipeline internal gas is great, in order to guarantee the stability of structure, and avoid ka tai and the poor problem of leakproofness because installation error causes with the valve rod, so first ka tai 6 and first valve body 1 integrated into one piece, second ka tai 13 and second valve body 14 integrated into one piece, thereby the joint strength of relevant component has been improved, and sealed performance has been guaranteed.
As a specific embodiment of the gas communication joint provided in the present invention, please refer to fig. 4, the inner side surfaces of the first clamping table 6 and the second clamping table 13 are fixed with a sealing cushion layer 15. Because the first clamping table 6, the second clamping table 13, the first clamping disc 7 and the second clamping disc 9 are all rigid parts, after the circulation of gas between an external pipeline and equipment is realized, the first valve body 1 and the second valve body 14 realize plugging by means of the reset of the first elastic piece 5 and the second elastic piece 10 respectively. However, due to various reasons of inaccurate movement and installation and manufacturing errors, the connection between the first chuck 7 and the first clamping table 6 and the connection between the second chuck 9 and the second clamping table 13 are not compact, so that the sealing cushion layers 15 are fixed on the inner walls of the first clamping table 6 and the second clamping table 13, the first chuck 7 and the second chuck 9 are abutted against the corresponding sealing cushion layers 15, and the sealing cushion layers 15 are made of flexible rubber, so that the connection tightness is improved.
As a specific embodiment of the gas communication joint provided by the present invention, please refer to fig. 1 to 5, a clamping member for clamping the first valve body 1 on the periphery is installed at the end of the second valve body 14. In order to realize the circulation of gas, open ends are arranged on the first valve body 1 and the second valve body 14, and after the open ends on the first valve body 1 and the second valve body 14 are inserted, the first valve body 1 and the second valve body 14 are enclosed to form a channel for communicating the vent hole 2 with the gas transmission hole 11. When the pressure of the gas in the external pipeline is larger than the pressure of the gas in the equipment, the gas flows into the equipment from the external pipeline, and then the gas can be supplemented into the equipment.
When the air pressure in the equipment is higher than the air pressure of the external pipeline, the gas enters the external pipeline from the equipment, and the gas in the equipment can be recovered. First valve body 1 and second valve body 14 can be dismantled and connect, in order to make second valve body 14 reliably the joint on first valve body 1, installs a plurality of chucking spare on second valve body 14. Can have seted up draw-in groove 16 on the outer peripheral face of first valve body 1, link up on second valve body 14 and seted up a plurality of screw holes, after second valve body 14 and the cooperation of 1 joint of first valve body, through the corresponding locating pin of threaded connection on a plurality of screw holes, locating pin and screw hole threaded connection to the tip of locating pin supports and leans on in draw-in groove 16, thereby makes first valve body 1 and second valve body 14 can connect reliably. When disassembly is required, the corresponding locating pin is removed from the second valve body 14.
As a specific embodiment of the gas connection joint provided by the present invention, please refer to fig. 1 to 5 together, the clamping member is a positioning bead 3, the plurality of positioning beads 3 are arranged along the circumferential direction of the second valve body 14, and the outer circumferential surface of the first valve body 1 is provided with a clamping groove 16 for clamping with the plurality of positioning beads 3. In order to further facilitate the tight connection of the first valve body 1 and the second valve body 14, a flared sleeve is provided at the open end of the second valve body 14, i.e. the end of the second valve body 14 close to the first valve body 1, in which a plurality of clamping members, i.e. positioning beads 3, are mounted.
The outer wall of the first valve body 1 is provided with a clamping groove 16, and the clamping groove 16 is formed along the circumferential direction of the outer wall of the first valve body 1. When the first valve body 1 is inserted into the second valve body 14, the outer circumferential surface of the first valve body 1 presses the positioning beads 3, so that the springs in the positioning beads 3 are compressed. Along with the continuation motion of first valve body 1, final location pearl 3 joint is in draw-in groove 16 to make first valve body 1 and second valve body 14 reliably connect, set up the aim at that the flaring overlaps and give off a space for location pearl 3.
As a specific embodiment of the gas connection joint provided in the present invention, please refer to fig. 1 to 5 together, a sealing sleeve 12 for abutting against the periphery of the first valve body 1 is fixed on the inner wall of the second valve body 14, and the second clamping table 13 is disposed on the inner wall of the sealing sleeve 12. The end part of the first valve body 1 close to the second valve body 14 is an open end, and the first valve body 1 needs to be in plug-in fit with the second valve body 14, so that the connection is more convenient, the end part of the first valve body 1 is provided with a reducing sleeve, and the outer diameter of the reducing sleeve is gradually reduced from the connection part of the reducing sleeve and the first valve body 1 to the direction of the second valve body 14. In order to enable the first valve body 1 and the second valve body 14 to be connected in a sealing mode, a sealing sleeve 12 is fixed on the inner wall of the second valve body 14, the outer wall of the sealing sleeve 12 is attached to the inner wall of the second valve body 14, and the end face of the sealing sleeve 12 is used for being attached to the outer peripheral face of the open end of the first valve body 1, namely the outer peripheral face of the reducing sleeve.
Make first valve body 1 and second valve body 14 reliably connect under the effect of chucking spare, when chucking spare joint was in draw-in groove 16, the terminal surface laminating setting of the terminal surface of first valve body 1 and seal cover 12 to realize the sealed of first valve body 1 and second valve body 14, second ka tai 13 and seal cover 12 integrated into one piece.
As a specific implementation manner of the gas communication joint provided in the present invention, please refer to fig. 3, a sliding sleeve 18 is sleeved on the first valve rod 4 and the second valve rod 8, and the sliding sleeve 18 is fixedly connected to the inner wall of the first valve body 1 and the inner wall of the second valve body 14 through a plurality of fixing rods 17. In order to allow gas to flow between the first valve element 1 and the second valve element 14, the outer peripheral surface of the first stem 4 is spaced apart from the first valve element 1, and the outer peripheral surface of the second stem 8 is spaced apart from the second valve element 14. First second valve rod 8 and first valve rod 4 contact earlier in this application to after second valve rod 8 moves the certain distance, second valve body 14 just airtight suit is on first valve body 1, at the in-process of the first valve body 1 motion of second valve body 14 drive, if do not set up any spacing measure on first valve rod 4 and the second valve rod 8, lead to easily because the disalignment of first valve rod 4 and second valve rod 8, and make the terminal surface that first valve rod 4 and second valve rod 8 contacted take place the slippage.
In order to avoid such accidents, sliding sleeves 18 are respectively sleeved on the first valve rod 4 and the second valve rod 8, a plurality of fixing rods 17 are fixed on the circumferential direction of the sliding sleeves 18, one end of each fixing rod 17 is fixed on the outer wall of the corresponding sliding sleeve 18, and the other end of each fixing rod 17 is fixed on the inner wall of the first valve body 1 or the inner wall of the corresponding second valve body 14. Can restrict the direction of motion of first valve rod 4 and second valve rod 8 through sliding sleeve 18, avoid the slippage of first valve rod 4 and second valve rod 8, in this application, first valve rod 4 cooperates with second valve rod 8 joint.
As a specific embodiment of the gas connection joint provided in the present invention, please refer to fig. 1 to 5 together, the first valve rod 4 is disposed along the axial direction of the first valve body 1, and the second valve rod 8 is disposed along the axial direction of the second valve body 14. Because the first valve body 1 and the second valve body 14 need to be matched in a plugging mode, and in the process of plugging the first valve body 1 and the second valve body 14, the first valve rod 4 and the second valve rod 8 move.
In order to ensure the tightness, the second valve body 14 needs to move along the axial direction of the first valve body 1, and the second valve rod 8 needs to move along the first valve rod 4, so that the reliability of the movement can be ensured.
As a specific embodiment of the gas communication joint provided by the present invention, please refer to fig. 5, the end portions of the first valve body 1 and the second valve body 14 are respectively connected with a first connecting plate 19 and a second connecting plate 20 by screw threads, the first connecting plate 19 is communicated with the vent hole 2 and is arranged on the first connecting plate 19, and the first elastic member 5 is abutted against the side surface of the first connecting plate 19; the air delivery hole 11 is formed through the second connecting plate 20, and the second elastic element 10 abuts against the side surface of the second connecting plate 20.
Due to the different pressures of the gases in different devices, and the communication of the vent holes 2 with the devices, the gases in the devices act on the first chuck 7, and the first chuck 7 is pressed against the first clamping table 6 under the action of the first elastic member 5 and the first chuck 7. If the pressure of the gas in the apparatus is higher, the pressure of the gas in the external pipeline needs to be increased, so that the gas in the external pipeline acts on the second chuck 9 and pushes the first chuck 7 to move under the action of the second elastic member 10.
When the gas pressure in the device is higher than the maximum pressure of the external pipeline, the second valve rod 8 can not push the first valve rod 4 to move, namely, the first valve body 1 is still in a blocking state under the action of the gas of the device. In order to solve such problems, the first connection plate 19 is screwed to the first valve body 1, the second connection plate 20 is screwed to the second connection plate 20, and the first elastic member 5 or the second elastic member 10 is appropriately replaced according to the air pressure in the device in a manner that the connection plates are detachable, thereby ensuring the circulation of air.
A second aspect of the embodiments of the present invention provides a detection apparatus, including the gas communication joint of any one of the above.
The utility model provides a check out test set's beneficial effect lies in: compared with the prior art, the utility model discloses air vent 2 has been seted up on the top of first valve body 1 in the check out test set, and first valve rod 4 is equipped with first elastic component 5 along the endwise slip of first valve body 1 on first valve rod 4, and first valve rod 4 opens and close air vent 2 through first elastic component 5.
The second valve body 14 is located below the first valve body 1 and is used for being hermetically sleeved on the first valve body 1, and the second valve body 14 is also provided with an air delivery hole 11. The second valve rod 8 slides along the axial direction of the second valve body 14, and the second elastic member 10 is connected to the second valve rod 8. The second valve rod 8 opens and closes the gas transmission hole 11 through a second elastic piece 10, and the first elastic piece 5 and the second elastic piece 10 are respectively positioned at the end parts of the first valve rod 4 and the second valve rod 8 which are far away from each other.
In use, when the first valve body 1 and the second valve body 14 are not connected, the first valve rod 4 blocks the first valve body 1 under the action of the first elastic piece 5, and the second valve rod 8 blocks the second valve body 14 under the action of the second elastic piece 10. When the second valve body 14 is closely sleeved on the first valve body 1, the second valve rod 8 is in contact with the first valve rod 4 and drives the first valve rod 4 to move, the first elastic part 5 and the second elastic part 10 are compressed and contracted under the driving of the second valve rod 8, a channel for gas circulation is formed between the first valve body 1 and the second valve body 14, and the gas transmission hole 11 and the vent hole 2 are opened and communicated.
Gas can flow between the equipment and the external pipeline under the action of the pressure difference, and after the gas circulation is completed, the second valve body 14 is drawn out of the first valve body 1, and the vent hole 2 and the gas transmission hole 11 are in a sealed state again. In this application, can realize carrying out gaseous intercommunication between different equipment and the external pipeline, need not to customize specific device, simple installation and suitability are stronger.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (13)
1. Gas intercommunication connects, its characterized in that includes:
the top of the first valve body is provided with a vent hole for communicating equipment, and a first valve rod is arranged in the first valve body in a sliding manner along the axial direction;
the second valve body is positioned below the first valve body, hermetically sleeved on the first valve body and provided with a gas transmission hole for communicating with an external pipeline; a second valve rod is arranged in the second valve body in a sliding mode along the axial direction; the end parts, far away from the first valve rod and the second valve rod, of the first valve rod and the second valve rod are respectively connected with a first elastic piece and a second elastic piece; the first valve rod opens and closes the vent hole through the first elastic piece, and the second valve rod opens and closes the gas transmission hole through the second elastic piece;
the second valve rod drives the first valve rod to move, and the first valve rod is used for enabling the air delivery hole and the air vent hole to be opened and communicated.
2. The gas communication joint according to claim 1, wherein the first valve body and the second valve body are provided with a first clamping table and a second clamping table on the inner walls thereof, respectively, and the first valve rod abuts against the first clamping table by means of the first elastic member for blocking the first valve body; the second valve rod abuts against the second clamping table through the second elastic piece and is used for sealing the second valve body.
3. The gas communication coupling of claim 2, wherein the distal ends of said first and second stems are provided with first and second chucks, respectively; the first elastic piece and the second elastic piece are respectively connected to the first chuck and the second chuck; the first chuck and the second chuck are used for abutting against the first clamping table and the second clamping table respectively.
4. The gas communication joint of claim 3, wherein the ends of said first chuck and said second chuck are each provided with a sealing bevel.
5. The gas communication coupling of claim 2, wherein said first snap land is integrally formed with said first valve body; the second clamping table and the second valve body are integrally formed.
6. The gas communication coupling of claim 2, wherein a gasket layer is secured to an inner side of each of said first and second clamping platforms.
7. The gas communication joint according to claim 1, wherein a retainer for being caught on an outer periphery of said first valve body is installed at an end portion of said second valve body.
8. The gas communication connector according to claim 7, wherein the retainer is a positioning bead, the positioning beads are disposed along a circumferential direction of the second valve body, and a groove for engaging with the positioning beads is formed on an outer circumferential surface of the first valve body.
9. The gas communication joint of claim 2, wherein a sealing sleeve for abutting against the outer periphery of the first valve body is fixed to the inner wall of the second valve body, and the second clamping table is arranged on the inner wall of the sealing sleeve.
10. The gas communication joint of claim 1, wherein a sliding sleeve is sleeved on each of the first valve stem and the second valve stem, and the sliding sleeve is fixedly connected with the inner wall of the first valve body and the inner wall of the second valve body through a plurality of fixing rods.
11. The gas communication joint of claim 1, wherein said first valve stem is disposed along an axial direction of said first valve body and said second valve stem is disposed along an axial direction of said second valve body.
12. The gas communication joint according to claim 3, wherein the end portions of the first valve body and the second valve body are respectively screwed with a first connecting plate and a second connecting plate, the first connecting plate and the vent hole are opened on the first connecting plate, and the first elastic member abuts against the side surface of the first connecting plate; the air delivery hole is arranged on the second connecting plate in a penetrating mode, and the second elastic piece abuts against the side face of the second connecting plate.
13. Detection apparatus, comprising a gas communication joint according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021570870.XU CN212251623U (en) | 2020-07-31 | 2020-07-31 | Gas communication joint and detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021570870.XU CN212251623U (en) | 2020-07-31 | 2020-07-31 | Gas communication joint and detection equipment |
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| Publication Number | Publication Date |
|---|---|
| CN212251623U true CN212251623U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021570870.XU Active CN212251623U (en) | 2020-07-31 | 2020-07-31 | Gas communication joint and detection equipment |
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| CN (1) | CN212251623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719106A (en) * | 2021-05-14 | 2022-07-08 | 云南傲远智能环保科技有限公司 | Pipe fitting with pipeline internal flow rate online monitor |
-
2020
- 2020-07-31 CN CN202021570870.XU patent/CN212251623U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719106A (en) * | 2021-05-14 | 2022-07-08 | 云南傲远智能环保科技有限公司 | Pipe fitting with pipeline internal flow rate online monitor |
| CN114719106B (en) * | 2021-05-14 | 2023-01-06 | 云南傲远智能环保科技有限公司 | Pipe fitting with pipeline internal flow rate online monitor |
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Effective date of registration: 20220707 Address after: 053000 No.185, Renmin East Road, Taocheng District, Hengshui City, Hebei Province Patentee after: HENGSHUI POWER SUPPLY BRANCH OF STATE GRID HEBEI ELECTRIC POWER Co.,Ltd. Patentee after: Hebei Chengyun environmental protection equipment Co., Ltd Address before: 053000 No.185, Renmin East Road, Taocheng District, Hengshui City, Hebei Province Patentee before: HENGSHUI POWER SUPPLY BRANCH OF STATE GRID HEBEI ELECTRIC POWER Co.,Ltd. |
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