CN210770354U

CN210770354U - Rotary gas plug valve

Info

Publication number: CN210770354U
Application number: CN201921440138.8U
Authority: CN
Inventors: 张伟国; 梁垚垚; 梁圣佶; 王振华; 潘赛斌
Original assignee: Zhejiang Xintao Intelligent Control Technology Co ltd
Current assignee: Zhejiang Xintao Intelligent Control Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-16
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a rotatory gas plug valve, including the case, have the valve body in case hole, fix the valve gap in closing cap case hole on the valve body and drive the rotatory valve rod of case, the inside of valve body is provided with inlet port and the venthole with case hole intercommunication, be provided with the spring between valve rod and the case, the valve gap has the uplift that holds the valve rod and push down the valve rod, the side of uplift has and rotates the stroke assorted with the case and dodges the hole, and a spanner passes dodge the hole and be connected with the valve rod. The utility model discloses directly push down the valve rod with the valve gap, saved parts such as jump ring, simplified the structure of plug valve, replaced traditional knob, convenient operation with the spanner in addition.

Description

Rotary gas plug valve

Technical Field

The utility model relates to a gas plug valve especially relates to a rotatory gas plug valve.

Background

The gas plug valve is a common part for adjusting gas flow, and is generally applied to gas cookers or gas water heaters. The traditional gas plug valve generally comprises a valve body, a valve rod and a valve core, wherein a valve core hole matched with the valve core and an air outlet hole are formed in the valve core, a gas distribution hole is formed in the side face of the corresponding valve core, and when the valve rod drives the valve core to rotate, the overlapped area of the gas distribution hole and the air outlet hole changes, so that the gas quantity flowing out of the valve body is adjusted.

For example, patent document CN207609816U discloses a gas cock valve with two passages, which includes a valve body as a stationary part, a valve cover mounted above the valve body, and a valve core and a rotating shaft as moving parts. As mentioned above, the traditional gas valve is generally installed on a gas cooker, the volume of the valve body is relatively small due to the limitation of installation space, the air inlet hole and the air outlet hole are both arranged inside the valve body, and the structure of the valve body is relatively complex.

In order to simplify the structure, patent document CN2416307Y discloses a one-inlet multiple-outlet plug valve, which includes a valve body and a valve cover, wherein the valve cover is connected to the valve body through screws, the valve body is provided with an air inlet and at least three air outlets, the valve body is internally provided with a valve core capable of controlling the opening and closing of the air outlets individually or simultaneously, the valve core is led out of the valve body through an upper valve rod, the upper valve rod is movably connected with a lower valve rod positioned in the valve core, and the end of the lower valve rod is close to a control valve of an electromagnetic valve coil arranged in the valve body. While CN2416307Y simplifies the structure of the stopcock, it is not suitable for some products.

SUMMERY OF THE UTILITY MODEL

To the complicated defect of current gas plug valve structure, the utility model provides a rotatory gas plug valve.

Rotatory gas plug valve, including the case, have the valve body in case hole, fix the valve gap of closing cap case hole on the valve body and drive the rotatory valve rod of valve core, the inside of valve body is provided with inlet port and the venthole with case hole intercommunication, be provided with the spring between valve rod and the case, the valve gap has the bulge portion that holds the valve rod and push down the valve rod, the side of bulge portion has and rotates the stroke assorted with the case and dodge the hole, and a spanner passes dodge the hole and be connected with the valve rod.

Optionally, the bulge portion has a first cavity in clearance fit with the valve rod, and a first sealing ring penetrating and sleeved on the valve rod is arranged in the first cavity.

Optionally, the raised portion has a second cavity for accommodating the top of the valve core and engaging with the valve core hole.

Optionally, the avoiding holes are arc-shaped holes arranged along the circumferential direction.

Optionally, the end of the valve rod is provided with a positioning pin, and the corresponding valve core is provided with a positioning pin groove matched with the positioning pin.

Optionally, the valve core hole and the air inlet hole are on the same straight line.

Optionally, the valve comprises an air inlet pipe extending into the air inlet hole and connected with the valve body.

Optionally, including being the mounting panel that the L type is used for fixed intake pipe, the mounting panel includes the fixed part of being connected with the valve body and the joint portion of fixed intake pipe, the outer wall of intake pipe has ring groove, joint portion has the breach that holds intake pipe and interior circumference card and go into ring groove.

Optionally, the fixing portion is fixedly connected with the valve body through a screw, the fixing portion is provided with a positioning hole, and the valve body is provided with a positioning protrusion matched with the positioning hole.

Optionally, the air outlet holes include an outer ring air outlet hole and an inner ring air outlet hole, wherein the outer ring air outlet hole is communicated with the valve core hole in an intersecting manner, and the inner ring air outlet hole is communicated with the outer ring air outlet hole through an inner ring communicating hole and an outer ring communicating hole.

The utility model discloses following beneficial effect has at least:

the utility model discloses directly push down the valve rod with the valve gap, saved parts such as jump ring, simplified the structure of plug valve to replace traditional knob, convenient operation with the spanner.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the plug valve of the present invention.

Fig. 2 is a top view of the plug valve of the present invention.

FIG. 3 is a cross-sectional view in the direction A-A of the plug valve of FIG. 2.

FIG. 4 is a cross-sectional view of the plug valve of FIG. 2 taken in the direction B-B.

FIG. 5 is a cross-sectional view of the plug valve of FIG. 2 in the direction C-C.

Fig. 6 is a structural schematic diagram of the stent.

Description of reference numerals:

1. a valve body; 11. an air inlet; 12. an outer ring air outlet hole; 13. an inner ring air outlet hole; 14. inner and outer ring communicating holes; 15. a spool bore; 16. positioning the projection; 17. and (7) mounting the plate.

2. A valve core; 21. and a locating pin slot.

3. A valve stem; 31. and a positioning pin.

4. A wrench.

5. A valve cover; 51. a raised portion; 52. a first cavity; 53. a second cavity; 54. avoiding holes; 55. a first seal ring.

6. An air inlet pipe; 61. an annular groove; 62. steel balls; 63. and a second seal ring.

7. A support; 71. a fixed part; 72. a clamping part; 73. a notch; 74. a screw; 75. and (7) positioning the holes.

8. A spring.

Detailed Description

The technical solutions in the embodiments of the present patent will be clearly and completely described below with reference to the drawings in the embodiments of the present patent, and it is obvious that the described embodiments are only some embodiments of the present patent, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this patent belongs. The terminology used in the description of the patent herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the patent. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-3, a rotary gas plug valve includes a valve core 2, a valve body 1 having a valve core hole 15, a valve cover 5 fixed on the valve body 1 and covering the valve core 2 and the valve core hole 15, and a valve rod 3 in transmission fit with the valve core 2, wherein an air inlet 11 and an air outlet communicated with the valve core hole 15 are arranged inside the valve body 1, and the valve core 2 is driven by the valve rod 3 to rotate in the valve core hole 15, so as to change the gas flow in the air outlet. Be provided with spring 8 between valve rod 3 and the case 2 for valve rod 3 can support tight case 2, avoids the case to appear drunkenness from top to bottom.

The bonnet 5 has a protrusion 51 for receiving the valve stem 3 and pressing the valve stem 3, and the protrusion 51 has a relief hole 54 formed in a side surface thereof to match a rotational stroke of the valve body 2, and the wrench 4 is coupled to the valve stem 3 through the relief hole 54.

The spanner 4 is arranged to control the valve rod 3 and the valve core 2 to rotate synchronously to adjust the flow of the fuel gas, so that the matching of the rotation stroke of the avoiding hole 54 and the valve core 2 means that the circumferential length of the avoiding hole 54 is at least the range of the rotation angle of the valve core 2, so as to meet the requirement of adjusting the flow.

The traditional valve cover structure is flat, the valve rod penetrates through the valve cover, and the clamp spring sleeved on the valve rod is in limit fit with the arch support on the valve cover. The utility model discloses a simplify plug valve structure, saved parts such as arched bracket and jump ring, directly utilize uplift 51 to push down valve rod 3. The valve rod 3 can theoretically penetrate through the valve cover 5, but an additional structure is needed for limiting the valve rod, such as a limiting step arranged on the valve rod 3.

In order to avoid the valve stem 3 from shaking, in one embodiment, the protrusion 51 has a first cavity 52 which is in clearance fit with the valve 3, and in order to ensure sealing performance and avoid air leakage, as shown in fig. 3, a first sealing ring 55 is disposed in the first cavity 52 and is sleeved on the valve stem 3.

As shown in fig. 3, the valve core 2 and the valve core hole 15 are in a matching inverted cone structure, and the bottom of the valve core 2 extends into the valve core hole 15 and can rotate freely. The top of the valve core 2 has a groove for receiving the end of the stem 3. in one embodiment, the side wall of the groove has a cut-out forming a dowel groove 21, and the corresponding stem end has a dowel pin 31 extending into the dowel groove 21.

As shown in fig. 3, the valve core 2 is a hollow structure, and in order to simplify the structure, in one embodiment, the air inlet hole 11 and the valve core hole 15 are in the same straight line, that is, the bottom of the central hole of the valve core 2 is directly communicated with the air inlet hole 11.

Two air outlets, namely an outer ring air outlet 12 and an inner ring air outlet 13, are arranged in the valve body 1, air distribution holes matched with the air outlets in position are arranged on the side walls of the corresponding valve cores 2, and when the valve cores rotate, the overlapped areas of the air distribution holes and the air outlets are enlarged, so that the gas flow of the air outlets can be adjusted.

The traditional structure generally can set up two air distribution holes, correspond with outer ring venthole 12 and inner ring venthole 13 respectively, and different turned angle can adjust the gas flow of different ventholes. In order to realize synchronous regulation of gas flow of the outer ring gas outlet and the inner ring gas outlet, in one embodiment, the valve body 1 is provided with an inner ring communication hole 14 and an outer ring communication hole 14 which are communicated with the outer ring gas outlet 12 and the inner ring gas outlet 13, and only the outer ring gas outlet 12 is communicated with the valve core hole in a crossing manner.

In order to facilitate the mold-opening manufacture, in one embodiment, the outer ring air outlet hole 12 and the inner ring air outlet hole 13 are in the same plane, and the inner ring communication hole 14 and the outer ring communication hole are communicated in a staggered mode, namely, the outer ring air outlet hole and the inner ring air outlet hole are not in the same plane but are communicated with each other. One end of the inner and outer ring communicating hole 14 is naturally closed, and the other end is sealed by steel balls.

As shown in fig. 3 and 4, in one embodiment, the spool 2 is not completely located in the spool hole 15, but only the tapered portion is located in the spool hole, the top portion is exposed out of the valve body 1, the raised portion has a second cavity 53 for receiving the top portion of the spool 2, and the second cavity 53 engages with the spool hole 15 and the first cavity 52.

To avoid the wrench from wobbling, in one embodiment, the relief holes 54 are arc-shaped holes arranged along the circumferential direction, and the width of the arc-shaped holes matches the diameter of the wrench 4. In addition, in order to facilitate disassembly, in one embodiment, the wrench 4 and the valve rod 3 are connected by screw threads.

The valve body 1 can be directly connected with an external air pipe, but due to installation environment limitation, a connecting pipe is required to be added in some cases. In one embodiment, the plug valve comprises an air inlet pipe 6, the air inlet pipe 6 directly extends into the air inlet hole 11, and a second sealing ring 63 is arranged between the air inlet pipe and the air inlet hole in a clearance fit mode.

In one embodiment, the air inlet pipe 6 is a three-section structure, the three air inlet pipes are in three dimensions of space, the air inlet pipe 6 and the valve body 1 are generally cast parts, and when a turning passage occurs, a fabrication hole needs to be arranged and sealed by the steel ball 62.

In order to install the plug valve on the equipment, the valve body 1 is also provided with an installation plate 17, a plurality of installation holes are formed in the installation plate 17, and the valve body can be fixedly installed on the required equipment through bolts.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present patent, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present patent protection. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the patent concept, which falls within the scope of protection of the patent. Therefore, the protection scope of this patent shall be subject to the appended claims.

Claims

1. Rotatory gas plug valve, including the case, have the valve body in case hole, fix the valve gap of closing cap case hole on the valve body and drive the rotatory valve rod of valve core, the inside of valve body is provided with inlet port and the venthole with case hole intercommunication, be provided with the spring between valve rod and the case, its characterized in that, the valve gap has the uplift portion that holds the valve rod and push down the valve rod, the side of uplift portion has and rotates the stroke assorted with the case and dodge the hole, and a spanner passes dodge the hole and be connected with the valve rod.

2. The rotary gas plug valve according to claim 1, wherein the protuberance has a first cavity which is in clearance fit with the valve stem, and a first sealing ring is arranged in the first cavity and is sleeved on the valve stem.

3. The rotary gas plug valve according to claim 1 or 2, wherein the ridge has a second cavity receiving the top of the spool in engagement with the spool bore.

4. The rotary gas plug valve according to claim 1, wherein the relief holes are arc-shaped holes arranged in a circumferential direction.

5. The rotary gas plug valve according to claim 1, wherein the end of the valve stem has a detent pin, and the corresponding valve core is provided with a detent pin groove that mates with the detent pin.

6. The rotary gas plug valve according to claim 1, wherein the spool hole and the inlet hole are in the same line.

7. A rotary gas plug valve according to claim 1 or 6, comprising an inlet pipe extending into the inlet port and connected to the valve body.

8. The rotary gas plug valve according to claim 7, comprising a support plate in an L shape for fixing the gas inlet pipe, wherein the support plate comprises a fixing portion connected with the valve body and a clamping portion for fixing the gas inlet pipe, the outer wall of the gas inlet pipe is provided with an annular clamping groove, and the clamping portion is provided with a notch for accommodating the gas inlet pipe and clamping the inner periphery of the gas inlet pipe into the annular clamping groove.

9. The rotary gas plug valve according to claim 8, wherein the fixing portion is fixedly connected with the valve body by a screw, the fixing portion has a positioning hole, and the valve body has a positioning protrusion engaged with the positioning hole.

10. The rotary gas plug valve according to claim 1, wherein the air outlet holes comprise an outer ring air outlet hole and an inner ring air outlet hole, wherein the outer ring air outlet hole is communicated with the valve core hole in an intersecting manner, and the inner ring air outlet hole is communicated with the outer ring air outlet hole through the inner and outer ring communication holes.