CN214578886U

CN214578886U - Sealed effectual leak protection type stop valve

Info

Publication number: CN214578886U
Application number: CN202120755324.1U
Authority: CN
Inventors: 张彬华
Original assignee: Zhejiang Juquan Copper Co ltd
Current assignee: Zhejiang Juquan Copper Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-02
Anticipated expiration: 2031-04-13

Abstract

The utility model discloses a stop valve, aiming at providing a leak-proof stop valve with good sealing effect, which is characterized in that the leak-proof stop valve with good sealing effect comprises a valve body, a valve rod and a valve cover, wherein the valve body is provided with a water inlet end and a water outlet end, a flow passage is arranged between the water inlet end and the water outlet end, the valve cover is positioned on the upper end surface of the valve body and is fixedly provided with a thread block between the valve body and the valve body, the valve rod sequentially penetrates through the valve body, the thread block and the valve cover from inside to outside, one end of the valve rod positioned in the valve body is fixedly provided with a sealing plug matched with the flow passage, the other end is fixedly provided with a first handle, the valve rod is in threaded connection with the thread block, the valve cover and the surface of the valve rod in the valve body are respectively provided with an annular cavity, one side of the two annular cavities far away from the thread block is respectively provided with an annular arc groove, a sealing ring is arranged in the annular arc groove, the utility model is suitable for a stop valve technical field.

Description

Sealed effectual leak protection type stop valve

Technical Field

The utility model belongs to the technical field of the stop valve, refer in particular to a sealed effectual leak protection type stop valve.

Background

The stop valve, also called stop valve, is the most widely used valve, and it is popular because the friction between the sealing surfaces is small in the opening and closing process, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for middle and low pressure, but also suitable for high pressure. The closing principle of the stop valve is that the sealing surface of the valve clack is tightly attached to the sealing surface of the valve seat by means of the pressure of the valve rod, and the medium is prevented from flowing.

The traditional stop valve has the phenomenon of leakage along with the increase of service time at present, and the sealing effect is not ideal.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a stop valve sealed effectual and have the leak protection effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a sealed effectual leak protection type stop valve, includes valve body, valve rod and valve gap, be equipped with into water the end on the valve body and go out the water end, it is equipped with the runner to advance water between end and the play water end, the valve gap be located the valve body up end and with the valve body between fixed be equipped with the thread piece, the valve rod runs through valve body, thread piece and valve gap from inside to outside in proper order, the valve rod is located the fixed sealing plug that is equipped with runner looks adaptation of one end in the valve body, the fixed first in command that is equipped with of the other end, valve rod and thread piece threaded connection, just it all is equipped with toroidal cavity, two just is located the valve rod surface in valve gap and the valve body one side that the thread piece was kept away from to toroidal cavity all is equipped with the annular arc groove, be equipped with the sealing washer in the annular arc groove.

The utility model discloses further set up to: the runner is close to and is equipped with seal assembly between one side of intaking the end and the inner wall of valve body fixedly, seal assembly includes support column, a support section of thick bamboo and spring, the inner wall fixed connection of support column one end and valve body, the other end and a support section of thick bamboo sliding connection, be equipped with the spout with support column looks adaptation in the support section of thick bamboo, the both ends of spring respectively with valve body and a support section of thick bamboo fixed connection, one side that the support column was kept away from to the spout is equipped with a plurality of rows and presses the mouth.

The utility model discloses further set up to: one side of the supporting cylinder far away from the supporting column is fixedly provided with a sealing gasket, and the diameter size of the sealing gasket is larger than that of the flow channel.

The utility model discloses further set up to: the sealing plug is characterized in that a through hole is formed in the valve rod, an ejector rod is arranged in the through hole and is in threaded connection with the inner wall of the through hole, one end of the ejector rod penetrates through the sealing plug, a plug head is fixedly arranged at the end of the plug head, and a second handle is fixedly arranged at the other end of the ejector rod and extends out of the valve rod.

The utility model discloses further set up to: the sealing plug is kept away from the ejector pin one side and is equipped with the recess with chock plug looks adaptation, be interference fit when the chock plug is located the recess.

The utility model has the advantages that:

1. compared with the traditional stop valve, the design that the sealing plug is extruded into the flow passage has better sealing effect;

2. the sealing structure is further arranged at the inlet of the flow passage, so that the sealing gasket can seal the inlet of the flow passage under the dual actions of the spring and the water pressure, the sealing effect is further improved, and the leakage phenomenon of the stop valve is prevented;

3. set up the ejector pin in the valve rod, make the ejector pin in the valve rod stretch out through rotating the second handle to the sealed pad of back-lifting can prevent to open when the valve, sealed pad still plays sealed effect to the runner, avoids unable normal use stop valve promptly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of the present invention at A in FIG. 1;

FIG. 3 is an enlarged view of the present invention at B in FIG. 1;

in the drawings: 1. a valve body; 10. a water inlet end; 11. a water outlet end; 2. a valve stem; 3. a valve cover; 4. a flow channel; 5. a thread block; 6. a sealing plug; 7. a first handle; 8. an annular cavity; 9. an annular arc groove; 12. a seal ring; 13. a seal assembly; 130. a support pillar; 131. a support cylinder; 132. a spring; 133. a chute; 134. a pressure discharge port; 135. a gasket; 14. a through hole; 15. a top rod; 16. a plug head; 17. a second handle; 18. and (4) a groove.

Detailed Description

The invention is further described in the following with reference to fig. 1 to 3 in a specific embodiment:

a leak-proof stop valve with good sealing effect comprises a valve body 1, a valve rod 2 and a valve cover 3, wherein a water inlet end 10 and a water outlet end 11 are arranged on the valve body 1, a flow passage 4 is arranged between the water inlet end 10 and the water outlet end 11, the valve cover 3 is positioned on the upper end face of the valve body 1 and is fixedly provided with a thread block 5 between the valve body 1, the valve rod 2 sequentially penetrates through the valve body 1, the thread block 5 and the valve cover 3 from inside to outside, one end of the valve rod 2, which is positioned in the valve body 1, is fixedly provided with a sealing plug 6 matched with the flow passage 4, the other end of the valve rod is fixedly provided with a first handle 7, the valve rod 2 is in threaded connection with the thread block 5, annular cavities 8 are respectively arranged on the surfaces of the valve cover 3 and the valve body 1 and on the valve rod 2, one sides, which are far away from the thread block 5, of the two annular cavities 8 are respectively provided with an annular arc groove 9, a sealing ring 12 is arranged in the annular arc groove 9, and the valve cover 3, the valve body 1 and the thread block 5 are preferably fixed by bolts, the valve rod 2 and the sealing plug 6 are preferably bonded, the first handle 7 and the valve rod 2 are preferably fixed by bolts, and the sealing ring 12 is preferably made of rubber.

Can see by above-mentioned structure, through setting up the design of 6 crowded flow passages 4 of sealing plug into, compare traditional stop valve, it is better to seal up the effect, valve gap 3 simultaneously, thread block 5 loops through bolted connection with valve body 1, convenient dismantlement, thereby be convenient for the maintenance in installation and the later stage of earlier stage, improve work efficiency, and set up two sealing washer 12 on valve rod 2, can avoid the stop valve when opening, inside medium is followed valve rod 2 and valve gap 3, gap between thread block 5 and the valve body 1 oozes, improve the sealed effect that the stop valve is located valve rod 2 department, wherein the setting of toroidal cavity 8, can be through adjusting valve rod 2, thereby can be more conveniently crowd sealing plug 6 into in flow passage 4.

As an optional implementation manner, a sealing assembly 13 is fixedly arranged between one side of the flow channel 4 close to the water inlet end 10 and the inner wall of the valve body 1, the sealing assembly 13 includes a supporting column 130, a supporting cylinder 131 and a spring 132, one end of the supporting column 130 is fixedly connected with the inner wall of the valve body 1, the other end of the supporting column 130 is slidably connected with the supporting cylinder 131, a chute 133 matched with the supporting column 130 is arranged in the supporting cylinder 131, two ends of the spring 132 are respectively fixedly connected with the valve body 1 and the supporting cylinder 131, one side of the chute 133 away from the supporting column 130 is provided with a plurality of rows of pressure ports 134, the supporting column 130 and the valve body 1 are preferably integrally formed, and two ends of the spring 132 are preferably welded.

It can be seen from above-mentioned structure that through setting up seal structure in the entrance of runner 4, can be under spring 132 and hydraulic dual function for a support section of thick bamboo 131 can seal the entry of runner 4, further improves sealed effect, thereby prevents that the stop valve from taking place the leakage phenomenon, and wherein arrange pressure port 134 can dredge the liquid in a support section of thick bamboo 131, avoid leading to in support column 130 can't stretch into a support section of thick bamboo 131, effectively improve practical function.

As an optional embodiment, a sealing gasket is fixedly arranged on a surface of the support cylinder 131 far away from the support column 130, the diameter of the sealing gasket is larger than that of the flow channel 4, the sealing gasket and the support cylinder 131 are preferably bonded, and the sealing gasket is preferably made of rubber.

It can be seen from the above structure that the sealing gasket made of rubber is adhered to one surface of the supporting cylinder 131 close to the flow channel 4, and the diameter of the sealing gasket is larger than that of the flow channel 4, so that the sealing effect of the sealing structure can be effectively improved.

As an optional implementation manner, a through hole 14 is formed in the valve rod 2, a push rod 15 is formed in the through hole 14, the push rod 15 is in threaded connection with the inner wall of the through hole 14, one end of the push rod 15 penetrates through the sealing plug 6, a plug 16 is fixedly arranged at the end of the push rod, a second handle 17 is fixedly arranged at the other end of the push rod 15 and extends out of the valve rod 2, the second handle 17 and the push rod 15 are preferably fixed by bolts, and the push rod 15 and the plug 16 are preferably in adhesive connection.

Can see out by above-mentioned structure, set up ejector pin 15 in valve rod 2, make ejector pin 15 in the valve rod 2 stretch out through rotating second handle 17 to the sealed pad of back-up when can preventing to open the valve, sealed pad still plays sealed effect to runner 4, avoids unable normal use stop valve promptly.

In an alternative embodiment, a recess 18 adapted to the plug 16 is provided on a side of the sealing plug 6 remote from the stem 15, and the plug 16 is in an interference fit when located in the recess 18.

By the structure, when the plug 16 is driven by the ejector rod 15 to return to the groove 18 through the interference fit between the plug 16 and the groove 18, the plug 16 extrudes the inner wall of the groove 18, so that the sealing plug 6 and the inner wall of the flow passage 4 are extruded, the sealing effect of the sealing plug 6 is further improved, and the leakage phenomenon is avoided.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a sealed effectual leak protection type stop valve, includes valve body (1), valve rod (2) and valve gap (3), be equipped with into water end (10) and play water end (11) on valve body (1), it is equipped with runner (4), characterized by to advance between water end (10) and play water end (11): valve gap (3) are located valve body (1) up end and with valve body (1) between fixed thread piece (5) that is equipped with, valve rod (2) run through valve body (1), thread piece (5) and valve gap (3) from inside to outside in proper order, the fixed sealing plug (6) that is equipped with runner (4) looks adaptation of one end that is located valve body (1) in valve rod (2), the other end is fixed and is equipped with the first in command (7), valve rod (2) and thread piece (5) threaded connection, valve gap (3) and valve body (1) in and be located valve rod (2) surface and all be equipped with annular cavity (8), two one side that thread piece (5) were kept away from in annular cavity (8) all is equipped with annular arc groove (9), be equipped with sealing washer (12) in annular arc groove (9).

2. A leak-proof stop valve with good sealing effect as claimed in claim 1, wherein: fixed seal assembly (13) that is equipped with between one side that runner (4) are close to into water end (10) and the inner wall of valve body (1), seal assembly (13) are including support column (130), a support section of thick bamboo (131) and spring (132), the inner wall fixed connection of support column (130) one end and valve body (1), the other end and a support section of thick bamboo (131) sliding connection, be equipped with spout (133) with support column (130) looks adaptation in a support section of thick bamboo (131), the both ends of spring (132) respectively with valve body (1) and a support section of thick bamboo (131) fixed connection, one side that support column (130) were kept away from in spout (133) is equipped with a plurality of rows and presses mouth (134).

3. A leak-proof stop valve with good sealing effect as claimed in claim 2, wherein: one side of the supporting cylinder (131) far away from the supporting column (130) is fixedly provided with a sealing gasket (135), and the diameter size of the sealing gasket (135) is larger than that of the flow channel (4).

4. A leak-proof stop valve with good sealing effect as claimed in claim 3, wherein: be equipped with through-hole (14) in valve rod (2), be equipped with ejector pin (15) in through-hole (14), ejector pin (15) and the inner wall threaded connection of through-hole (14), ejector pin (15) one end is run through sealing plug (6) and end department is fixed and is equipped with chock plug (16), and the other end extends valve rod (2) and is fixed and be equipped with second handle (17).

5. The leak-proof stop valve with good sealing effect as claimed in claim 4, wherein: a groove (18) matched with the plug head (16) is formed in one surface, far away from the ejector rod (15), of the sealing plug (6), and the plug head (16) is in interference fit when located in the groove (18).