CN218267247U

CN218267247U - Special check valve for gas

Info

Publication number: CN218267247U
Application number: CN202221986459.XU
Authority: CN
Inventors: 洪跃龙
Original assignee: Lok Valve Chongqing Co ltd
Current assignee: Lok Valve Chongqing Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-10
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a special check valve of gas, which comprises a body, the intake pipe is installed to one side of body, the mounting is installed to the inner wall of intake pipe, the mounting is close to one side of body and installs the elastic component, the baffle is installed to the bottom of elastic component, the body is close to one side inner wall of intake pipe and installs the annular pad, two sets of symmetrical arrangement's spout pole is installed to the inner wall of intake pipe, the equal movable mounting in inside of spout pole has the gyro wheel, the connecting rod is installed to the inside gomphosis of gyro wheel, the outlet duct is installed with one side outer wall that the intake pipe is opposite to the body. The utility model discloses an install elastic component and baffle, elastic component includes telescopic link and spring, and the spring has elasticity, and when the gas produced the backward flow, the spring received the pulling force of baffle and disappeared, and the spring is retracted fast this moment, and the quick pulling baffle moves back, blocks the passageway that the gas flows back, and the resilience force of spring has increased the speed that the baffle moved back, has improved the speed that blocks the gas backward flow.

Description

Special check valve for gas

Technical Field

The utility model relates to a check valve technical field specifically is a special check valve of gas.

Background

The gas is a gas fuel, and the gas releases energy for use in combustion, so that the gas is frequently used by both industry and residents in modern life and becomes one of indispensable energy sources in life of people, however, the gas has certain danger, people can be poisoned when inhaling the gas, and can explode when meeting open fire to cause serious harm when reaching a certain concentration.

The gas check valve in the prior art has the following defects:

most of existing gas check valves are plugged by pressure of gas backflow and self gravity of a baffle, when gas flows back, the baffle is pushed to fall, and a channel for gas backflow is blocked, so that gas backflow is prevented.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special check valve of gas to solve the problem that proposes among the above-mentioned background art.

In order to achieve the purpose, the utility model provides the following technical scheme, a special gas check valve comprises a body, wherein one side of the body is provided with an air inlet pipe, the inner wall of the air inlet pipe is provided with a fixing part, and one side of the fixing part, which is close to the body, is provided with an elastic part; the utility model discloses a portable air conditioner, including body, air inlet pipe, baffle, connecting rod, runner pole, gyro wheel, connecting rod, the body is installed to the equal movable mounting in inside of runner pole, the baffle is installed to the bottom of elastic component, and the baffle is located the inner space of body, the annular pad is installed to one side inner wall that the body is close to the air inlet pipe, the runner pole of two sets of symmetrical arrangement is installed to the inner wall of air inlet pipe, the equal movable mounting in inside of runner pole has the gyro wheel, the connecting rod is installed to the inside gomphosis of gyro wheel, and the bottom of connecting rod is connected in the surface of baffle, the outlet duct is installed to one side outer wall that the body is opposite with the air inlet pipe.

Preferably, solid fixed ring is installed at the top of body, sealed lid is installed at solid fixed ring's top, the bottom of sealed lid is provided with the ring channel, solid fixed ring's top is installed the annular fastener, and the gomphosis of annular fastener is in the inside of ring channel.

Preferably, the top of the sealing cover is provided with a plurality of groups of first through holes which are arranged in an annular mode, the top of the fixing ring is provided with a plurality of groups of second through holes which vertically correspond to the first through holes, the bolts are installed in the first through holes in an embedded mode, the bottoms of the bolts extend to the lower portion of the fixing ring from the inside of the second through holes, and the bottom ends of the bolts are in threaded connection with nuts.

Preferably, the outer wall of the air outlet pipe is sleeved with a rectangular block, and a circular through groove is formed in the rectangular block.

Preferably, the inner wall of the circular through groove is provided with two groups of through holes which are symmetrical front and back, and the inside of the circular through groove is movably connected with a cylinder.

Preferably, a threaded rod is installed at the top of the cylinder, the top end of the threaded rod extends out of the top of the rectangular block, a threaded ring is connected to the outer wall of the threaded rod in a threaded mode, the bottom of the threaded ring is connected to the top of the rectangular block, and a handheld piece is installed at the top of the threaded rod.

Preferably, the top of intake pipe and the bottom of outlet duct all are provided with the multiunit and are the mounting hole that the annular was arranged, sealed pad is installed to the equal gomphosis of top of intake pipe and the bottom of outlet duct.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an install elastic component and baffle, elastic component includes telescopic link and spring, and the spring has elasticity, and when the gas produced the backward flow, the spring received the pulling force of baffle and disappeared, and the spring is back fast this moment and is retracted to stimulate the baffle fast and move back, thereby block the passageway of gas backward flow, the resilience force of spring has increased the speed that the baffle moved back, has improved the speed that blocks the gas backward flow.

2. The utility model discloses an install rectangle piece and cylinder, the inside of rectangle piece is provided with circular logical groove, and the through-hole is arranged around circular logical groove's inner wall is provided with two sets of, and the gas passes through the bottom that the top of outlet duct can be followed to the through-hole reachs the outlet duct to get into the gas pipeline that the outlet duct is connected for using, when not using the gas for a long time, for increasing the security, the rotatable threaded rod of user moves down the cylinder, makes the cylinder block the through-hole, thoroughly blocks the gas, avoids the gas to leak.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the installation structure of the chute rod and the roller of the present invention;

FIG. 3 is a schematic view of the installation structure of the air inlet pipe and the fixing member of the present invention;

FIG. 4 is a schematic view of the mounting structure of the rectangular block and the air outlet pipe of the present invention;

fig. 5 is an enlarged schematic structural view of a portion a in fig. 4 according to the present invention;

fig. 6 is a schematic view of the installation structure of the rectangular block and the thread ring of the present invention.

In the figure: 1. a body; 2. an air inlet pipe; 3. a fixing member; 4. an elastic member; 5. a baffle plate; 6. an annular pad; 7. a chute rod; 8. a roller; 9. a connecting rod; 10. a fixing ring; 11. a sealing cover; 12. an annular groove; 13. an annular clip; 14. a first through hole; 15. a second through hole; 16. an air outlet pipe; 17. a rectangular block; 18. a circular through groove; 19. a through hole; 20. a cylinder; 21. a threaded rod; 22. a thread ring; 23. a handpiece; 24. mounting holes; 25. and a gasket.

Detailed Description

Referring to fig. 1 to 6, a check valve for gas is disclosed:

including body 1, intake pipe 2 is installed to one side of body 1, mounting 3 is installed to the inner wall of intake pipe 2, mounting 3 is close to one side of body 1 and installs elastic component 4, baffle 5 is installed to the bottom of elastic component 4, and baffle 5 is located the inner space of body 1, body 1 is close to one side inner wall of intake pipe 2 and installs annular pad 6, two sets of symmetrical arrangement's spout pole 7 is installed to the inner wall of intake pipe 2, the equal movable mounting in inside of spout pole 7 has gyro wheel 8, connecting rod 9 is installed to the inside gomphosis of gyro wheel 8, and the bottom of connecting rod 9 is connected in the surface of baffle 5, outlet duct 16 is installed to one side outer wall that body 1 is opposite with intake pipe 2.

An air inlet pipe 2 and an air outlet pipe 16 are respectively arranged at the front and the back of a body 1, fuel gas enters the body 1 from the air inlet pipe 2 and then enters the air outlet pipe 16 from the body 1, the top end of a fixing part 3 is fixedly connected to the top wall of the air inlet pipe 2, the bottom end of the fixing part is fixedly connected to the bottom wall of the air inlet pipe 2 and is used for fixing an elastic part 4, two groups of chute rods 7 are fixedly arranged on the inner walls of the two sides of the air inlet pipe 2, the chutes of the two groups of chute rods 7 are opposite, a roller 8 can roll in the chutes, a baffle 5 is connected with the roller 8 through a connecting rod 9, the roller 8 rolls back and forth to drive the baffle 5 to move back and forth, the bottom end of the elastic part 4 is connected with the baffle 5, the elastic part 4 comprises a telescopic rod and a spring, the telescopic rod fixes the baffle 5 right in front of the air inlet pipe 2 to avoid the baffle 5 moving down, the spring has elasticity, and during use, the fuel gas flows to the body 1 from the interior of the air inlet pipe 2, the baffle 5 is pushed by the flowing pressure of the fuel gas, the baffle 5 is pushed forwards, the telescopic end of the telescopic rod is extended at the moment, the spring is stretched, the roller 8 slides forwards, the baffle 5 is not attached to the inner wall of the back of the body 1 at the moment, a channel is reserved, the fuel gas flows to the front of the baffle 5 from the channel and further enters the air outlet pipe 16 for use, the length of the chute rod 7 is fixed, the maximum moving distance of the baffle 5 is limited, the spring is prevented from being stretched excessively, the service life of the spring is effectively prolonged, when the fuel gas reflows, the front of the baffle 5 is pressed to move towards the inner wall of the back of the body 1, meanwhile, the pulling force borne by the spring disappears, the baffle 5 rebounds quickly, the baffle 5 is attached to the annular pad 6 on the inner wall of the back of the body 1, the annular pad 6 has elasticity, the baffle 5 is prevented from impacting the inner wall of the body 1, and abrasion is reduced, increase its life, connecting rod 9, baffle 5 and telescopic link are lighter plastics material to promote easily.

Fixed ring 10 is installed at the top of body 1, fixed ring 10's top is installed sealed lid 11, the bottom of sealed lid 11 is provided with ring channel 12, annular fastener 13 is installed at fixed ring 10's top, and annular fastener 13 gomphosis is in the inside of ring channel 12, sealed lid 11 top is provided with the multiunit and is the annular first perforation 14 of arranging, fixed ring 10's top is provided with the multiunit second through-hole 15 that corresponds from top to bottom with first perforation 14, the bolt is installed to the inside gomphosis of first perforation 14, and the bottom of bolt extends to fixed ring 10's below from the inside of second through-hole 15, the bottom threaded connection of bolt has the nut, rectangular block 17 has been cup jointed to the outer wall of outlet duct 16, rectangular block 17's inside is provided with circular through-groove 18, the inner wall of circular through-groove 18 is provided with two sets of symmetrical through-hole 19 from beginning to end, the inside swing joint of circular through-groove 18 has cylinder 20, threaded rod 21 is installed at the top of cylinder 20, and the top of rectangular block 17 extends out the top of 21, the outer wall threaded connection has threaded ring 22, and the bottom of threaded ring 22 is connected to the top of rectangular block 17, and the top of threaded-mounted threaded rod 21 is provided with the sealed pad 25 that the bottom of inlet duct 16 all is provided with the annular sealing gasket 24 and is arranged on the bottom of the annular sealing pad.

When a user installs the sealing cover 11, the annular clamping piece 13 is clamped inside the annular groove 12, the user can align the first through hole 14 and the second through hole 15 up and down, thereby fixing the sealing cover 11 at the top of the fixing ring 10 by using bolts and nuts, the outer surface of the annular clamping piece 13 is provided with a rubber layer, the rubber layer increases the tightness between the annular clamping piece 13 and the annular groove 12, thereby improving the tightness between the sealing cover 11 and the body 1, two groups of through holes 19 enable the inside of the circular through groove 18 to be communicated with the inside of the body 1 and the gas outlet pipe 16, the outer wall of the cylinder 20 and the inner wall of the circular through groove 18 are in a movable fit state, the inner wall of the circular through groove 18 is provided with the rubber layer, the air tightness between the cylinder 20 and the circular through groove 18 is increased, the user can move the cylinder 20 downwards or upwards by rotating the threaded rod 21 leftwards or rightwards, when the cylinder 20 moves to the bottommost end of the circular through groove 18, the cylinder 20 blocks the two through holes 19, at this time, the gas inside of the body 1 is blocked, the top end of the gas outlet pipe 16 cannot enter the cylinder 20, the gas pipeline, the user can be blocked, the gas pipeline can be conveniently prevented from moving, the gas outlet pipe 21 and the gas pipeline is prevented from being connected with the gas sealing gasket 21, and the gas pipeline external sealing gasket 21, and the gas pipeline can be conveniently prevented from being connected with the gas outlet pipe 21, and the gas pipeline.

The working principle is as follows: during the use, the user is connected the top and the bottom of intake pipe 2 and outlet duct 16 with the gas pipeline, during normal use gas, gas flows to the inside of body 1 from the top of intake pipe 2, under the air current pressure of gas, baffle 5 is promoted, move towards outlet duct 16, baffle 5 and the inner wall at the body 1 back do not laminate this moment, leave the passageway, gas flows to the top of outlet duct 16 from this passageway, rethread through hole 19 flows to the bottom of outlet duct 16 through circular logical groove 18, and then get into the gas pipeline of being connected with outlet duct 16 and use, when the gas takes place the backward flow, the front of baffle 5 receives pressure to move back, simultaneously, the pulling force that the spring received disappears, kick-back fast, pulling baffle 5 and the laminating of annular pad 6 on the inner wall at the body 1 back, the passageway disappears, thereby prevent the gas backward flow, if do not use gas for a long time, the user can rotate 21 and move down cylinder 20, thereby plug up through hole 19, thoroughly block the gas, avoid gas to leak.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a special check valve of gas, includes body (1), its characterized in that: an air inlet pipe (2) is installed on one side of the body (1), a fixing piece (3) is installed on the inner wall of the air inlet pipe (2), and an elastic piece (4) is installed on one side, close to the body (1), of the fixing piece (3);

baffle (5) are installed to the bottom of elastic component (4), and baffle (5) are located the inner space of body (1), body (1) is close to one side inner wall of intake pipe (2) and installs annular pad (6), sliding chute pole (7) of two sets of symmetrical arrangement are installed to the inner wall of intake pipe (2), the equal movable mounting in inside of sliding chute pole (7) has gyro wheel (8), connecting rod (9) are installed to the inside gomphosis of gyro wheel (8), and the bottom of connecting rod (9) is connected in the surface of baffle (5), outlet duct (16) are installed with one side outer wall that intake pipe (2) are opposite in body (1).

2. The gas dedicated check valve according to claim 1, wherein: fixed ring (10) are installed at the top of body (1), sealed lid (11) are installed at the top of fixed ring (10), the bottom of sealed lid (11) is provided with ring channel (12), annular fastener (13) are installed at the top of fixed ring (10), and annular fastener (13) gomphosis is in the inside of ring channel (12).

3. The gas dedicated check valve according to claim 2, wherein: the top of the sealing cover (11) is provided with a plurality of groups of first through holes (14) which are annularly arranged, the top of the fixing ring (10) is provided with a plurality of groups of second through holes (15) which vertically correspond to the first through holes (14), the bolts are embedded in the first through holes (14), the bottoms of the bolts extend to the lower portion of the fixing ring (10) from the inner portions of the second through holes (15), and the bottoms of the bolts are in threaded connection with nuts.

4. The gas dedicated check valve according to claim 1, wherein: the outer wall of the air outlet pipe (16) is sleeved with a rectangular block (17), and a circular through groove (18) is formed in the rectangular block (17).

5. The gas dedicated check valve according to claim 4, wherein: the inner wall of the circular through groove (18) is provided with two groups of through holes (19) which are symmetrical front and back, and the inside of the circular through groove (18) is movably connected with a cylinder (20).

6. The special check valve for gas as claimed in claim 5, wherein: threaded rod (21) are installed at the top of cylinder (20), and the top of threaded rod (21) extends the top of rectangle piece (17), the outer wall threaded connection of threaded rod (21) has screw ring (22), and the bottom of screw ring (22) is connected in the top of rectangle piece (17), handheld piece (23) are installed at the top of threaded rod (21).

7. The gas dedicated check valve according to claim 1, wherein: the top of intake pipe (2) and the bottom of outlet duct (16) all are provided with the mounting hole (24) that the multiunit is the annular and arranges, sealed pad (25) are installed to the top of intake pipe (2) and the bottom of outlet duct (16) all gomphosis.