CN209892770U

CN209892770U - Stop valve

Info

Publication number: CN209892770U
Application number: CN201920212321.6U
Authority: CN
Inventors: 王良辉; 王茂杰
Original assignee: Wenzhou Haige Valve Co Ltd
Current assignee: Wenzhou Haige Valve Co Ltd
Priority date: 2019-02-19
Filing date: 2019-02-19
Publication date: 2020-01-03
Anticipated expiration: 2029-02-19

Abstract

The utility model discloses a stop valve relates to forced seal formula valve technical field, has solved the technical problem that the assembly process is complicated. The valve body comprises an upper valve body and a lower valve body, the upper valve body and the lower valve body are connected together through a flange structure, a plurality of guide rods which are vertically arranged and penetrate through the sealing piece are arranged on the upper valve body, a plurality of positioning shaft sleeves are arranged on the lower valve body, and the lower ends of the guide rods which penetrate through the sealing piece are respectively inserted into the positioning shaft sleeves; the utility model has the advantages of convenient assembly.

Description

Stop valve

Technical Field

The utility model relates to a forced seal formula valve technical field, more specifically says that it relates to a stop valve.

Background

The Chinese patent with the publication number of CN207145626U discloses a stop valve with high sealing performance, which comprises a pipe body, wherein water pipes are communicated with two sides of the pipe body, a screw rod is inserted into the top of the pipe body, and one end of the screw rod, which is close to the pipe body, penetrates through the top of the pipe body and extends into the pipe body;

the inside of body is provided with the slide, the both sides of body inner chamber and the below that is located the slide all are provided with the dog, the top of dog and the fixed connection of slide, the top of slide and the equal fixed mounting in telescopic both sides have the spring, the top of spring and the top fixed connection of body inner chamber, the equal fixed mounting in both sides of body inner chamber bottom has two spring levers, and the top of two spring levers of homonymy passes through briquetting fixed connection, the draw-in groove has been seted up at the top of briquetting, and passes through elastic rod fixed connection between two dogs, one side of dog and the below fixed mounting that is located the elastic rod have the stopper, the surface encirclement of spring lever is provided with reset spring.

Similar to the stop valve in the prior art, the sealing element formed by combining the two stop blocks and the flower plate can simultaneously close the part of the pipe body communicated with the two water pipes, and has double sealing capability, so that the stop valve is stronger in sealing property compared with a common stop valve; however, such a design may result in a large increase in the force-bearing area of the sliding plate, and in order to prevent the sliding plate from being partially pressed and deflected, a structure such as a spring and a return spring for stabilizing the pressure of the sliding plate needs to be provided inside the pipe body, and the spring and the return spring are difficult to be installed into the pipe body by conventional means (i.e., how to install the spring and the return spring into a sealed space formed by combining the pipe body and the pressing plate), which leads to a complicated assembly process, and thus needs to be improved.

SUMMERY OF THE UTILITY MODEL

To the technical problem at present, an object of the utility model is to provide a stop valve, it has the advantage of the equipment of being convenient for.

In order to achieve the above purpose, the utility model provides a following technical scheme: including valve body, twice set up respectively on the intercommunicating pore of valve body both sides, threaded connection and the lower extreme stretches into the screw rod in the valve body and rotate the sealing member of connecting in the screw rod lower extreme in order to be used for sealing the intercommunicating pore, the valve body includes valve body and lower valve body, go up the valve body and pass through flange structural connection together with lower valve body, upward be provided with many vertical settings on the valve body and wear to establish the guide bar of sealing, be provided with many location axle sleeves down on the valve body, each the guide bar is worn to establish the lower extreme of sealing and is inserted respectively and advance in each location axle sleeve.

By adopting the technical scheme, the communicating holes arranged on two sides of the pipe body can be simultaneously sealed through the matching between the screw rod and the sealing piece, so that the double-sealing effect is achieved; the pipe body is divided into the upper pipe body and the lower pipe body and assembled together by using the flange structure, so that the screw rod and the sealing element can be conveniently assembled in the valve body, the sliding direction of the sealing element can be limited by the guide rod, the effect of stabilizing the sealing element can be achieved, the sealing element cannot deflect due to unstable water pressure, and meanwhile, the guide rod can be connected with the lower valve body through the positioning shaft sleeve, so that the guide rod is more stable; this setting adopts the mode of pegging graft, need not to weld the guide bar, can the shaping through the mode of pouring, consequently is convenient for assemble.

The utility model discloses further set up to: the sealing piece comprises a horizontal plate and two sealing parts which are respectively arranged on two sides of the horizontal plate and used for closing the communicating hole, the two sealing parts are all arranged in a thin plate shape, and a first reinforcing rib connected with the lower surface of the horizontal plate is arranged on one surface, far away from the inner wall of the valve body, of the two sealing parts.

Through adopting above-mentioned technical scheme, can increase the joint strength between the sealing of lamellar and the horizontal plate through first strengthening rib for the sealing is difficult to be buckled because of water impact, and has save material's extra effect, effectively reduces material cost.

The utility model discloses further set up to: and a sealing gasket attached to the inner wall of the valve body is arranged on one surface, close to the inner wall of the valve body, of the sealing part.

Through adopting above-mentioned technical scheme, can increase the leakproofness between sealing and the intercommunicating pore through sealed the pad, further improve the leakproofness of stop valve.

The utility model discloses further set up to: the upper surface of the horizontal plate is provided with a plurality of connecting shaft sleeves, and each guide rod penetrates through each connecting shaft sleeve respectively.

Through adopting above-mentioned technical scheme, can increase the area of being connected of horizontal plate and guide bar through connecting the axle sleeve for be connected more stably between guide bar and the horizontal plate.

The utility model discloses further set up to: and a sealing ring attached to the outer wall of the guide rod is fixed on the inner wall of each connecting shaft sleeve.

Through adopting above-mentioned technical scheme, can increase the leakproofness between connecting axle sleeve and the guide bar through the sealing washer for when the valve body is inside to be filled with water, water is difficult for spilling over from the clearance between guide bar and the connecting axle sleeve.

The utility model discloses further set up to: and a plurality of second reinforcing ribs connected with the upper surface of the horizontal plate are fixed on the outer wall of each connecting shaft sleeve.

Through adopting above-mentioned technical scheme, can increase the stability of connecting axle sleeve and horizontal plate through the second strengthening rib, and can improve the intensity of horizontal plate for the horizontal plate compressive capacity is stronger.

The utility model discloses further set up to: the upper surface of the horizontal plate is provided with a rotating shaft sleeve sleeved at the lower end of the screw rod, and the lower end of the screw rod is sleeved with a ball bearing fixed with the outer ring and the rotating shaft sleeve.

Through adopting above-mentioned technical scheme, can increase the area of contact of horizontal plate and screw rod through rotating the axle sleeve for be connected more stably between horizontal plate and the screw rod, can not produce the friction with the horizontal plate when can making the screw rod rotate through ball bearing.

The utility model discloses further set up to: the lower pot head of screw rod is equipped with the sealing ring that is in ball bearing top, the sealing ring closely laminates with the inner wall that rotates the axle sleeve.

Through adopting above-mentioned technical scheme, can protect the ball bearing that is in the axis of rotation cover through the sealing member for aqueous vapor in the valve body is difficult for causing the erosion to the ball bearing of installing in the axis of rotation cover.

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

(1) the effect of stabilizing the sealing element can be achieved through the guide rod and the positioning shaft sleeve which are in inserting fit, and the guide rod and the positioning shaft sleeve are simple to fit and convenient to assemble;

(2) the sealing element formed by combining the horizontal plate, the sealing part and the first reinforcing rib needs less material for production, and the material cost is reduced;

(3) the working stability of the sealing element can be improved through the matching among the connecting shaft sleeve, the second reinforcing rib and the sealing ring.

Drawings

FIG. 1 is a schematic view of the internal structure of the present embodiment;

FIG. 2 is a schematic cross-sectional view of the present embodiment;

fig. 3 is a partially enlarged view of a in fig. 2.

Reference numerals: 1. a valve body; 11. an upper valve body; 111. a guide bar; 112. a third reinforcing rib; 12. a lower valve body; 121. positioning the shaft sleeve; 122. a fourth reinforcing rib; 13. a flange structure; 14. a communicating hole; 2. a screw; 21. rotating the handle; 3. a seal member; 31. a horizontal plate; 32. a sealing part; 321. a gasket; 322. a first reinforcing rib; 33. connecting the shaft sleeve; 331. a second reinforcing rib; 332. a seal ring; 34. rotating the shaft sleeve; 341. a ball bearing; 342. and (4) a sealing ring.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A stop valve, as shown in figure 1, comprises a valve body 1, two communicating holes 14 respectively arranged at two sides of the valve body 1, a sealing element 3 connected in the valve body 1 in a sliding way for sealing the two communicating holes 14 at the same time, and a screw rod 2 vertically arranged and in threaded connection with the upper part of the valve body 1 for driving the sealing element 3 to lift up and down; wherein, a rotating handle 21 is arranged at the upper end of the screw rod 2.

Referring to fig. 1 and 2, the valve body 1 includes an upper valve body 11 and a lower valve body 12, and the upper valve body 11 and the lower valve body 12 are fixed together by a flange structure 13; wherein, the axis circumference equidistance that is provided with many ring screw rods 2 vertically in the inside of last valve body 11 arranges and wears to establish the guide bar 111 of sealing 3, is provided with the location axle sleeve 121 that the confession each guide bar 111 pegs graft in the inside of lower valve body 12.

Wherein, all be provided with the third strengthening rib 112 that the axis circumference equidistance of multichannel ring guide bar 111 was arranged on the outer wall of each guide bar 111, all be provided with the fourth strengthening rib 122 that the axis circumference equidistance of multichannel ring location axle sleeve 121 was arranged on the outer wall of each location axle sleeve 121.

Referring to fig. 1 and 2, the sealing member 3 includes a horizontal plate 31 disposed horizontally and having an outer wall closely attached to an inner wall of the valve body 1, and two sealing portions 32 disposed in a thin plate shape and disposed on two sides of the horizontal plate 31 respectively for sealing the two communication holes 14 respectively; wherein, the one side that two sealing portions 32 set up in opposite directions all is provided with the lower surface with horizontal plate 31 and is connected in order to be used for increasing sealing portion 32 and horizontal plate 31 joint strength's first strengthening rib 322, and the one side that two sealing portions 32 set up in opposite directions all is provided with the sealed pad 321 that the inner wall of valve body 1 closely laminated in order to be used for improving sealing portion 32 and intercommunicating pore 14 leakproofness.

As shown in fig. 2 and 3, a plurality of connecting shaft sleeves 33 for increasing the connection stability between the horizontal plate 31 and the guide rods 111 are disposed on the horizontal plate 31, and each guide rod 111 penetrates through each connecting shaft sleeve 33; wherein, all be provided with the axis circumference equidistance of multichannel ring connecting axle sleeve 33 on the outer wall of each connecting axle sleeve 33 and arrange and with the upper surface connection of horizontal plate 31 in order to be used for increasing the second strengthening rib 331 of connecting axle sleeve 33 and horizontal plate 31 joint strength, be fixed with the sealing washer 332 that closely laminates with the outer wall of guide bar 111 at the inner wall of each connecting axle sleeve 33.

As shown in fig. 2 and 3, a rotary shaft sleeve 34 is provided on the horizontal plate 31, a ball bearing 341 whose inner ring is fixed to the lower end of the screw 2 is fixed in the rotary shaft sleeve 34, and a seal ring 342 which is located above the ball bearing 341 and prevents moisture from corroding the ball bearing 341 is provided in the rotary shaft sleeve 34.

The working process of the utility model is as follows:

during the assembly, only need with screw rod 2 installation on last valve body 11, then install the lower extreme at screw rod 2 with sealing member 3, then with last valve body 11 and lower valve body 12 concatenation together, utilize flange structure 13 to fix last valve body 11 and lower valve body 12 together at last.

When the sealing device is used, only the screw rod 2 needs to be rotated, at the moment, the screw rod 2 can lift up and down along the length direction of the screw rod 2, so that the effect of driving the sealing element 3 to move up and down is achieved, and at the moment, the sealing element 3 can be ensured not to deflect when moving through the guide rod 111; the shutoff valves are closed when the two seals 32 are aligned with the two communication holes 14, respectively, and are opened when the two seals 32 are alternately separated from the two communication holes 14, respectively.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stop valve, includes valve body (1), twice sets up respectively in intercommunicating pore (14) of valve body (1) both sides, threaded connection on valve body (1) and screw rod (2) and rotation connection in screw rod (2) lower extreme in order to be used for sealing member (3) of intercommunicating pore (14) in valve body (1) lower extreme, its characterized in that: the valve body (1) comprises an upper valve body (11) and a lower valve body (12), the upper valve body (11) and the lower valve body (12) are connected together through a flange structure (13), a plurality of guide rods (111) which are vertically arranged and penetrate through a sealing piece (3) are arranged on the upper valve body (11), a plurality of positioning shaft sleeves (121) are arranged on the lower valve body (12), and each guide rod (111) penetrates through the lower end of the sealing piece (3) and is inserted into each positioning shaft sleeve (121) respectively.

2. A shut-off valve as claimed in claim 1, wherein: the sealing element (3) comprises a horizontal plate (31) and two sealing parts (32) which are arranged on two sides of the horizontal plate (31) respectively and used for closing the communicating hole (14), the two sealing parts (32) are arranged in a thin plate shape, and one surface, away from the inner wall of the valve body (1), of each sealing part (32) is provided with a first reinforcing rib (322) connected with the lower surface of the horizontal plate (31).

3. A shut-off valve as claimed in claim 2, wherein: and a sealing gasket (321) attached to the inner wall of the valve body (1) is arranged on one surface, close to the inner wall of the valve body (1), of the sealing part (32).

4. A shut-off valve as claimed in claim 2, wherein: the upper surface of the horizontal plate (31) is provided with a plurality of connecting shaft sleeves (33), and each guide rod (111) penetrates through each connecting shaft sleeve (33) respectively.

5. A shut-off valve as claimed in claim 4, wherein: and a sealing ring (332) attached to the outer wall of the guide rod (111) is fixed on the inner wall of each connecting shaft sleeve (33).

6. A shut-off valve as claimed in claim 4, wherein: and a plurality of second reinforcing ribs (331) connected with the upper surface of the horizontal plate (31) are fixed on the outer wall of each connecting shaft sleeve (33).

7. A shut-off valve as claimed in claim 2, wherein: the upper surface of the horizontal plate (31) is provided with a rotating shaft sleeve (34) sleeved at the lower end of the screw rod (2), and the lower end of the screw rod (2) is sleeved with a ball bearing (341) fixed with the outer ring and the rotating shaft sleeve (34).

8. A shut-off valve as claimed in claim 7, wherein: the lower end of the screw rod (2) is sleeved with a sealing ring (342) which is positioned above the ball bearing (341), and the sealing ring (342) is tightly attached to the inner wall of the rotating shaft sleeve (34).