CN220956837U - Stop type blow-down valve - Google Patents

Abstract

The utility model belongs to the field of blow-down valves, and particularly relates to a stop-type blow-down valve, which solves the problem that the rotation opening and closing of the existing spherical valve core is easily damaged by hard impurities and affects the use effect, and comprises a valve body, an elastic sealing element, a valve shaft and a driving element, wherein the interior of the valve body is sequentially provided with an inlet, a valve port and an outlet which are communicated with each other along the water flow direction; the valve is characterized in that the elastic sealing element is arranged at one end of the valve shaft, the valve body is provided with a mounting part, the mounting part is provided with a mounting channel communicated with the valve port, the valve shaft is arranged in the mounting channel, and the driving element drives the valve shaft to be close to or far away from the valve port, so that the elastic sealing element opens or closes the valve port. The valve shaft is driven by the driving piece to approach or separate from the valve port, the valve shaft drives the elastic sealing piece to move, the valve port is closed or opened, and impurities at the valve port can not abrade the surface of the elastic sealing piece to influence the sealing effect when the elastic sealing piece moves, so that the sewage disposal valve can keep a good use effect.

Description

Stop type blow-down valve

Technical Field

The utility model belongs to the field of blow-down valves, and particularly relates to a stop-type blow-down valve.

Background

The drain valve is an important part in the pipeline, is connected in the branch pipeline, and after the water in the pipeline is filtered through the filtering device, impurities in the pipeline are positioned at the junction of the main pipeline and the branch pipeline, and after the drain valve is opened, the impurities can be discharged from the drain outlet of the drain valve.

The utility model of China with the application number 201520410015.5 discloses a blow-down valve of a heat storage type electric water heater, which comprises a guide pipe, an interface with internal threads, a valve body, a spherical valve core, two valve core seats, a valve rod, an operating device, a fastening screw and a drainage interface, wherein the lower end of the guide pipe passes through the interface and is fixedly connected with a water inlet end cavity; the spherical valve core is arranged between the two valve core seats, is in rotary fit with the spherical crown-shaped hole and is in liquid seal, and the valve rod is embedded with the mounting position and penetrates through the valve rod channel to extend out of the valve core cavity; the fastening screw is screwed with the internal thread of the valve core cavity and is abutted against the valve core seat, and the drainage interface is screwed with the internal thread of the drainage end cavity and is abutted against the fastening screw. The operation control device is used for controlling the spherical valve core to rotate, and sewage can be discharged when the diversion hole of the spherical valve core is in a straight line with the water inlet end and the water outlet end cavity; when the central line of the diversion hole is vertical to the straight line where the water inlet end cavity and the water outlet end cavity are positioned, the water inlet end cavity and the water outlet end cavity are isolated.

The following problems exist in the related art: the valve is opened and closed by the rotation of the spherical valve core, and when the spherical valve core rotates, the spherical valve core is easy to contact with hard impurities to cause surface damage, so that the using effect of the valve can be influenced.

Disclosure of utility model

The utility model provides a stop-type blow-down valve in order to prevent the use effect of the blow-down valve from being influenced after solid impurities damage a valve core.

The utility model provides a stop-type blow-down valve, which adopts the following technical scheme:

The stop-type blow-down valve comprises a valve body, an elastic sealing element, a valve shaft and a driving element, wherein an inlet, a valve port and an outlet which are communicated with each other are sequentially formed in the valve body along the water flow direction; the valve is characterized in that the elastic sealing element is arranged at one end of the valve shaft, the valve body is provided with a mounting part, a mounting channel communicated with the valve port is formed in the mounting part, the valve shaft is arranged in the mounting channel, and the driving element drives the valve shaft to be close to or far away from the valve port, so that the elastic sealing element opens or closes the valve port.

Through adopting above-mentioned technical scheme, the drive piece drive valve shaft is close to or keeps away from the valve port, and the valve shaft drives the motion of elastic sealing member, realizes closing or opening the valve port, and when the elastic sealing member moved, the impurity of valve port department can not lead to the fact wearing and tearing to influence sealed effect to its surface to can make this blow off valve keep better result of use.

As a further preferable mode, the valve body is provided with a mounting part, the valve shaft comprises a valve shaft main body, a plugging part and a connecting block, the valve shaft main body is in threaded connection fit with the mounting channel, and the valve shaft main body, the plugging part and the connecting block are all coaxially arranged with the valve port; the sealing part is arranged at one end of the valve shaft main body, which is close to the valve port, the elastic sealing element is arranged on the sealing part, and the connecting block is fixedly connected to one end of the valve shaft main body, which is far away from the valve port; the driving piece drives the connecting block to drive the valve shaft main body to rotate, so that the plugging part is close to or far away from the valve port.

Through adopting above-mentioned technical scheme, rotate and then drive the valve shaft main part through the drive connecting block and realize rotating, be threaded connection between valve shaft main part and the installation department to can take place to remove when the valve shaft main part rotates, and connecting block and shutoff portion follow its synchronous motion, shutoff portion drive elastic seal spare motion realization is opened or is closed the valve port.

As a further preferable mode, the elastic sealing piece is an O-shaped ring, the plugging portion is provided with a mounting groove for placing the O-shaped ring, and the plugging portion is in embedded fit with the valve port.

Through adopting above-mentioned technical scheme, shutoff portion gets into in the valve port to carry out shutoff to it, improves the leakproofness through the O type circle simultaneously, avoids impurity direct long-time contact O type circle, causes the corruption damage to it, influences its life.

As a further preferable mode, a limiting ring is arranged in the mounting channel, a limiting groove is formed in the valve shaft main body, and the limiting ring is arranged around the limiting groove.

Through adopting above-mentioned technical scheme, the spacing ring carries out spacingly to the motion distance of valve shaft main part, avoids the valve shaft main part to remove the back, and elastic sealing member extrudees too tightly with the valve port, or breaks away from in the valve shaft main part follow installation department.

As a further preferable mode, the driving piece comprises a knob handle and a connecting seat, wherein the connecting seat is fixedly connected to the knob handle, and a clamping groove which is in plug-in fit with the connecting block is formed in the connecting seat.

Through adopting above-mentioned technical scheme, when adjusting the valve shaft position, twist knob handle drive connecting seat and rotate, the connecting block is located the draw-in groove to drive connecting block and valve shaft main part rotation, easy operation is convenient.

As a further preferable aspect, the driving member includes a rocker and a handle, one end of the rocker is fixedly connected to the connection block, the handle is rotatably connected to the other end of the rocker, a rotation axis of the handle is parallel to a rotation axis of the valve shaft main body, and the connection block and the handle are respectively located at both sides of the rocker.

Through adopting above-mentioned technical scheme, rotate the handle and can drive the rocker and rotate, and then drive connecting block and valve shaft main part rotation, the operation is more simple convenient.

As a further preferred aspect, the inner wall of the inlet is provided with a first beveled surface ending in the valve port.

Through adopting above-mentioned technical scheme, when the impurity in the valve body passes the valve port from the entry and gets into the export, impurity can not be stopped through first oblique conical surface, can all be discharged, improves the blowdown effect.

As a further preferred feature, the inner wall of the inlet is provided with a second beveled surface terminating in the first beveled surface.

Through adopting above-mentioned technical scheme, water is from the internal buffering of passing through the second oblique conical surface of entry entering valve earlier, slows down the impact force of water, and when water passed through the second oblique conical surface simultaneously, impurity can not be blocked.

As a further preferable aspect, the valve shaft body is provided with a plurality of seal rings in a sleeved manner, and the outer peripheral wall of each seal ring is attached to the inner wall of the corresponding mounting portion.

Through adopting above-mentioned technical scheme, the sealing ring sets up between valve shaft and installation department, improves the leakproofness of valve shaft and installation department, avoids the internal water exudation of valve.

As a further preferable mode, the valve body is detachably connected with a sewage outlet communicated with the outlet, the caliber of the sewage outlet is smaller than that of the outlet, and a sealing gasket is arranged between the sewage outlet and the valve body.

Through adopting above-mentioned technical scheme, connect the drain on the valve body, more stable when making sewage discharge, and sealing gasket can avoid sewage to ooze between drain and the valve body and cause the pollution.

In summary, the utility model at least comprises the following beneficial technical effects:

1. The valve shaft is driven by the driving piece to approach or depart from the valve port, the valve shaft drives the elastic sealing piece to move so as to realize closing or opening of the valve port, and impurities at the valve port can not cause abrasion to the surface of the elastic sealing piece to influence the sealing effect when the elastic sealing piece moves, so that the sewage disposal valve can keep a good use effect;

2. The water enters the valve body from the inlet and is buffered through the second inclined conical surface, so that the impact force of the water is slowed down, meanwhile, when the water passes through the second inclined conical surface, impurities in the valve body cannot be blocked, when the impurities in the valve body pass through the valve port from the inlet and enter the outlet, the impurities can not be blocked through the first inclined conical surface, and the impurities can be completely discharged, so that the pollution discharge effect is improved;

3. Through connecting the drain on the valve body, it is more stable when making sewage discharge, and sealing gasket can avoid sewage to ooze between drain and the valve body and cause the pollution.

Drawings

FIG. 1 is a schematic overall structure of embodiment 1;

FIG. 2 is a schematic cross-sectional view showing the open state of the valve in example 1;

FIG. 3 is a schematic cross-sectional view showing a valve-closed state in example 1;

FIG. 4 is a schematic cross-sectional view of an example 1 showing a valve shaft and a driver;

Fig. 5 is a schematic cross-sectional view showing the open state of the valve in embodiment 2.

The same reference numbers are used throughout the drawings to reference like elements or structures, wherein:

1. A valve body; 11. an inlet; 111. a first beveled surface; 112. a second beveled surface; 12. a valve port; 13. an outlet; 2. an elastic seal; 3. a valve shaft; 31. a valve shaft body; 311. a limit groove; 312. a seal ring; 32. a blocking part; 321. a mounting groove; 33. a connecting block; 4. a driving member; 41. a knob handle; 42. a connecting seat; 421. a clamping groove; 43. a rocker; 44. a handle; 5. a mounting part; 51. a limiting ring; 52. a mounting channel; 6. a sewage outlet; 61. and a sealing gasket.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships that are shown based on the drawings, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model is described in further detail below with reference to fig. 1-5.

The utility model discloses a stop-type blow-down valve.

Example 1:

Referring to fig. 1 to 4, a stop-type sewage valve comprises a valve body 1, an elastic sealing member 2, a valve shaft 3, a driving member 4, a mounting part 5 and a sewage outlet 6, wherein an inlet 11, a valve port 12 and an outlet 13 which are communicated with each other are sequentially formed in the valve body 1 along the water flow direction; when the blow-down valve is used, one end of the valve body 1, which is close to the inlet 11, is arranged in a pipeline, and the blow-down outlet 6 is arranged at the other end of the valve body 1 and is communicated with the outlet 13; the elastic sealing element 2 is arranged at one end of the valve shaft 3, and the valve shaft 3 is driven by the driving element 4 to be close to or far away from the valve port 12, so that the elastic sealing element 2 opens or closes the valve port 12.

In this embodiment, the drain 6 is detachably connected with the valve body 1, and as a preferred embodiment, the drain 6 is in threaded connection with the valve body 1, and the caliber of the drain 6 is smaller than that of the outlet 13, so that the sewage is more stable when discharged, and the sealing gasket 61 is arranged between the drain 6 and the valve body 1, so as to avoid pollution caused by seepage of sewage from the drain 6 and the valve body 1.

In this embodiment, the mounting portion 5 is integrally connected to the valve body 1, a mounting channel 52 communicating with the valve port 12 is provided on the mounting portion 5, the valve shaft 3 is disposed in the mounting channel 52, the valve shaft 3 includes a valve shaft main body 31, a blocking portion 32 and a connecting block 33, the valve shaft main body 31 is in threaded connection fit with the mounting channel 52, and the valve shaft main body 31, the blocking portion 32 and the connecting block 33 are all coaxially disposed with the valve port 12; the plugging part 32 is fixedly connected to one end, close to the valve port 12, of the valve shaft main body 31, the elastic sealing element 2 is arranged on the plugging part 32, and as a preferred embodiment, the elastic sealing element 2 is an O-shaped ring, the plugging part 32 is provided with a mounting groove 321 for placing the O-shaped ring, the plugging part 32 is in embedded fit with the valve port 12, and the O-shaped ring is sleeved on the plugging part 32 and is positioned in the mounting groove 321; the plugging part 32 enters the valve port 12 to plug the valve port, so that impurities are prevented from directly contacting the O-shaped ring for a long time to cause corrosion damage to the O-shaped ring, and the O-shaped ring contacts the valve Zhou Cejie, so that the sealing effect can be improved; the connecting block 33 is fixedly connected to one end, far away from the valve port 12, of the valve shaft main body 31, and the driving piece 4 drives the connecting block 33 to drive the valve shaft main body 31 to rotate, so that the plugging part 32 is close to or far away from the valve port 12, and further opening and closing of the valve port 12 are achieved.

When the O-shaped ring is separated from the valve port 12, the valve port 12 is opened, impurities in the inlet 11 pass through the valve port 12 and enter the outlet 13 to be discharged from the sewage outlet 6, preferably, the inner wall of the inlet 11 is provided with a first inclined conical surface 111 with the tail end facing the valve port 12, the impurities can not be blocked by the inclined conical surface and can be completely discharged, the impurities enter the outlet 13, further, the inner wall of the inlet 11 is provided with a second inclined conical surface 112 with the tail end facing the first inclined conical surface 111, water firstly passes through the second inclined conical surface to be buffered from the inlet into the valve body, the impact force of the water is slowed down, and meanwhile, the impurities can not be blocked when the water passes through the second inclined conical surface.

For driving the valve shaft main body 31 to rotate, the driving piece 4 comprises a knob handle 41 and a connecting seat 42, the connecting seat 42 is fixedly connected to the knob handle 41, a clamping groove 421 which is in plug-in fit with the connecting block 33 is formed in the connecting seat 42, the connecting block 33 is inserted into the clamping groove 421, and the knob handle 41 can drive the connecting block 33 and the valve shaft main body 31 to rotate.

In this embodiment, the outer part of the valve shaft main body 31 is sleeved with a plurality of sealing rings 312, the outer peripheral wall of each sealing ring 312 is attached to the inner wall of the mounting part 5, so that the sealing performance of the valve shaft main body 31 and the mounting part 5 is improved, water in the valve body 1 is prevented from seeping out, and the sealing effect is further improved by arranging a plurality of sealing rings 312; the circumferential side of valve shaft main body 31 has still seted up a plurality of ring channels, and the setting of ring channel reduces the material use when valve shaft main body 31 production, makes the area of contact of valve shaft main body 31 and installation department 5 reduce simultaneously to reduce the friction between valve shaft main body 31 and the installation department 5, be convenient for drive valve shaft main body 31 rotation.

The mounting part 5 is fixedly connected with the limiting ring 51, the valve shaft main body 31 is provided with the limiting groove 311, the limiting ring 51 is arranged around the limiting groove 311, when the valve shaft main body 31 rotates and moves, the O-shaped ring seals the valve when the sealing part 32 is close to the valve port 12, the limiting ring 51 is abutted with one side of the limiting groove 311, and the valve shaft main body 31 is limited to move continuously, so that the O-shaped ring is protected; when the plugging portion 32 is far away from the valve port 12, the O-ring is separated from the valve, and then the stop ring 51 abuts against the other side of the stop groove 311, so that the valve shaft main body 31 is prevented from being separated from the mounting portion 5.

Example 2:

Referring to fig. 5, the difference between the present embodiment and embodiment 1 is that the driving member 4 includes a rocker 43 and a handle 44, one end of the rocker 43 is fixedly connected to the connection block 33, the handle 44 is rotatably connected to the other end of the rocker 43, the rotation axis of the handle 44 is parallel to the rotation axis of the valve shaft main body 31, the connection block 33 and the handle 44 are respectively located at two sides of the rocker 43, and the rocker 43 is driven to rotate by shaking the handle 44, so as to further drive the connection block 33 and the valve shaft main body 31 to rotate, so that the operation is simpler and more convenient.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. The stop-type blow-down valve is characterized by comprising a valve body (1), an elastic sealing element (2), a valve shaft (3) and a driving element (4), wherein an inlet (11), a valve port (12) and an outlet (13) which are communicated with each other are sequentially formed in the valve body (1) along the water flow direction; the valve is characterized in that the elastic sealing element (2) is arranged at one end of the valve shaft (3), the valve body (1) is provided with a mounting part (5), the mounting part (5) is provided with a mounting channel (52) communicated with the valve port (12), the valve shaft (3) is arranged in the mounting channel (52), and the driving element (4) drives the valve shaft (3) to be close to or far away from the valve port (12), so that the elastic sealing element (2) is opened or closed by the valve port (12).

2. A shut-off blow down valve according to claim 1, wherein the valve shaft (3) comprises a valve shaft body (31), a blocking part (32) and a connecting block (33), the valve shaft body (31) being adapted for threaded connection with the mounting channel (52), the valve shaft body (31), the blocking part (32) and the connecting block (33) being arranged coaxially with the valve port (12); the sealing part (32) is arranged at one end, close to the valve port (12), of the valve shaft main body (31), the elastic sealing piece (2) is arranged on the sealing part (32), and the connecting block (33) is fixedly connected to one end, far away from the valve port (12), of the valve shaft main body (31); the driving piece (4) drives the connecting block (33) to drive the valve shaft main body (31) to rotate, so that the blocking part (32) is close to or far away from the valve port (12).

3. A shut-off blow down valve according to claim 2, wherein the elastic sealing member (2) is an O-ring, the blocking portion (32) is provided with a mounting groove (321) for placing the O-ring, and the blocking portion (32) is embedded and adapted with the valve port (12).

4. The stop-type blow-down valve according to claim 2, wherein a limiting ring (51) is arranged in the mounting channel (52), a limiting groove (311) is formed in the valve shaft main body (31), and the limiting ring (51) is arranged around the limiting groove (311).

5. The stop-type blow-down valve according to claim 2, wherein the driving member (4) comprises a knob handle (41) and a connecting seat (42), the connecting seat (42) is fixedly connected to the knob handle (41), and a clamping groove (421) which is in plug-in fit with the connecting block (33) is formed in the connecting seat (42).

6. A shut-off blow down valve according to claim 2, wherein the driving member (4) comprises a rocker (43) and a handle (44), one end of the rocker (43) is fixedly connected to the connecting block (33), the handle (44) is rotatably connected to the other end of the rocker (43), the rotation axis of the handle (44) is parallel to the rotation axis of the valve shaft main body (31), and the connecting block (33) and the handle (44) are located on both sides of the rocker (43), respectively.

7. A shut-off blow down valve according to claim 1, wherein the inner wall of the inlet (11) is provided with a first beveled surface (111) ending towards the valve port (12).

8. A shut-off blow down valve as in claim 7, wherein the inner wall of the inlet (11) is provided with a second beveled surface (112) ending towards the first beveled surface (111).

9. A shut-off blow-down valve according to claim 2, wherein the valve shaft body (31) is provided with a plurality of sealing rings (312) externally, the outer peripheral wall of the sealing rings (312) being attached to the inner wall of the mounting portion (5).

10. A shut-off blow down valve according to any of claims 1-9, characterised in that the valve body (1) is detachably connected with a blow down port (6) communicating with the outlet (13), the aperture of the blow down port (6) is smaller than the aperture of the outlet (13), and a sealing gasket (61) is arranged between the blow down port (6) and the valve body (1).