Precision compound intake and exhaust valve
By adopting a precision composite intake and exhaust valve designed with a split structure and guide mechanism in the pipeline exhaust valve, the problems of floating tube failure and guide exhaust pipe rust are solved, achieving more thorough exhaust and higher Reliability ensures the safety of water supply pipelines.
Patent Information
- Application Number
- CN201911092920.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2019-10-11
- Filing Date
- 2019-11-11
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2039-11-11
AI Technical Summary
During use, the existing pipeline exhaust valve is prone to failure due to the floating tube failure or the guide exhaust pipe being rusted by scale, and the secondary exhaust hole is sealed in the early stage of the floating ball rising, so it cannot effectively perform micro-exhaust, resulting in the pipeline. The risk of deformation or rupture is increased.
The precision composite inlet and exhaust valve adopts a split structure, designed through threaded valve posts and guide mechanisms, combined with the secondary exhaust holes of the return spring and sliding sleeve, ensures the design of the guide exhaust pipe and float outer barrel. Avoid clogging and failure and micro-exhaust through the secondary exhaust hole after a large amount of exhaust.
The exhaust gas is achieved more thorough and reliable, avoiding the risk of pipe deformation or rupture, and improving the safety and reliability of pipeline facilities.
Smart Images
Figure CN110822157B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to an exhaust valve device, in particular to a precision composite intake and exhaust valve. Background Art
[0002] There is often air inside water pipes or containers. Under the combined effect of water flow and air flow, pipe bursts often occur. In addition, many water pipes use PVC pipes. When the water consumption is too large, the negative pressure inside the pipes can easily cause the pipes to be sucked flat, deformed or broken. These can easily cause large-scale water outages, which not only affects people's normal lives, but also consumes a lot of manpower and material resources for emergency repairs. This has brought great problems to the normal water supply. The Chinese invention patent with application publication number CN104613207A discloses a "A pipeline exhaust valve", the valve body is installed at the end of the drainage pipe body, and a water inlet and a drain outlet connected to the end of the drainage pipe body are provided at the lower part of the pipeline exhaust valve. The pipeline exhaust valve includes an air collecting device located inside the valve body and a float exhaust device, the air collecting device is arranged at the lower part of the valve body, and the float exhaust device is located at the upper part of the air collecting device. Although this pipeline exhaust valve can be designed with air collection and exhaust as one, and there is an air collecting ring inside the valve to collect and exhaust the bubbles in the water flow passing through the valve, this exhaust valve adopts the principle of a float and a lever, which is very It is easy to fail. In addition, when the airflow in the pipe is too large, it is easy to blow up the float directly, thereby blocking the exhaust port. Due to the large pressure difference between the inside and outside, the exhaust port cannot be opened, and the exhaust function cannot be achieved. The reliability is relatively poor. A Chinese utility model patent with the authorization announcement number CN206093156 discloses a "pipeline automatic air inlet and outlet valve", in which a float outer barrel is arranged in the valve body, a float is arranged in the float outer barrel, a float pressure cover and a guide exhaust pipe are arranged on the top of the float, and a plurality of guide exhaust pipe holes are arranged from top to bottom on the guide exhaust pipe. A guide pipe connected to the guide exhaust pipe is arranged in the middle of the valve column at the top of the valve cover, an exhaust inner pipe is arranged on the valve column around the guide pipe, and an exhaust cross pipe connected to the exhaust inner pipe is arranged on the side wall at the top of the valve column. When there is too much gas in the pipeline, it can be quickly deflated through the fence hole of the float outer barrel, and when there is less gas in the pipeline, it can also be deflated from time to time through the secondary exhaust hole in the middle of the elastic sleeve. It can also quickly intake air when negative pressure is generated in the pipeline, preventing the water pipeline from deformation and rupture, and the reliability is also stronger. However, the shortcomings of this pipeline automatic air inlet and outlet valve are as follows:
[0003] First, the float cover on the top of the float is separate. After a period of use, the guide exhaust pipe is easily rusted by scale and causes failure, especially when the intake and exhaust volume is small. Since the power provided by the intake and exhaust is very small, the probability of failure due to scale and rust will increase.
[0004] Secondly, at the initial stage of the float's rise, the float has already sealed the secondary exhaust holes on the elastic sleeve. In fact, the secondary exhaust holes on the elastic sleeve do not play the micro-exhaust role they should. Summary of the invention
[0005] The technical problem to be solved by the present invention is to provide a precision composite intake and exhaust valve, which adopts a split structure, has a more reasonable structure, is not prone to blockage and failure, and can perform micro-exhaust through the secondary exhaust hole after a large amount of exhaust is completed, so that the exhaust is more thorough and the safety of facilities such as water pipes or containers is effectively guaranteed.
[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0007] The invention comprises a valve body (26), a valve cover (21), a valve column (11), a float closure (15), a valve column end cover (13), a float outer barrel (24), a float outer barrel fence hole (23), a guide exhaust pipe (31), a float gland (33), and a float (36), wherein the valve column (11) is connected to the valve cover (21) by means of threads.
[0008] A first exhaust hole (12) is provided in the middle of the valve column (11), and a guide mechanism (16) is provided in the first exhaust hole (12). The guide mechanism (16) is a tubular body axially arranged in the middle of the first exhaust hole (12), or is composed of at least two frames arranged axially and fixed in the first exhaust hole (12) by a bracket.
[0009] The guide exhaust pipe (31) is fixedly arranged on the float (36), and the float pressure cover (33) is connected to the guide exhaust pipe (31) through a sliding sleeve (32). A return spring (34) is provided between the float pressure cover (33) and the float (36). A secondary exhaust hole (35) is provided on the guide exhaust pipe (31) at the position where the return spring (34) is located. The secondary exhaust hole (35) connects the inside of the guide exhaust pipe (31) with the float outer barrel (24) at the position where the return spring (34) is located, and the sliding sleeve (32) can slide along the guide exhaust pipe (31) under the movement of the float (36) or the action of the return spring (34), so that the secondary exhaust hole (35) is in a closed or open state.
[0010] Furthermore, the valve column end cover (13) is a cover body, on which a second exhaust hole (17) is provided. At the same time, the cover body completely covers the outlet of the first exhaust hole (12) inside the valve column end cover (13).
[0011] Furthermore, the inner wall of the above-mentioned float outer barrel (24) is preferably provided with vertical ridges (25), and at least three ridges (25) are provided on the inner wall of the float outer barrel (24). The ridges (25) are preferably vertical plate-like strips or bends of the float outer barrel (24) body, and the vertical plate-like strips are the most preferred.
[0012] Furthermore, the end of the valve column (11) in the valve body (26) extends downward to the middle of the float outer barrel (24).
[0013] Furthermore, a transverse air hole (18) is provided on a downwardly extending portion of the valve column (11), and the float sealing member (15) is arranged at the end of the valve column (11) in the valve body (26).
[0014] Compared with the prior art, the present invention adopts a split structure, which is more reasonable and not prone to blockage and failure. Moreover, after a large amount of exhaust is completed, micro-exhaust can be performed through the secondary exhaust hole, and the exhaust is more thorough. It is particularly suitable for occasions where precise exhaust is required, and can effectively ensure the safety of facilities such as water pipes or containers. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0016] Figure 1 This is a schematic diagram of the structure of Example 1 of the present invention.
[0017] Figure 2 This is a schematic diagram of the structure of the floating ball outer barrel from a top view according to Example 1 of the present invention.
[0018] Figure 3 This is a schematic diagram of the structure of the valve column of Example 2 of the present invention.
[0019] Figure 4 for Figure 3 Schematic diagram of the structure along the section A-A.
[0020] Figure 5 This is a schematic diagram of the structure of Example 3 of the present invention.
[0021] Figure 6 This is a schematic diagram of the structure of Example 4 of the present invention.
[0022] Figure 7 This is a schematic diagram of the structure of Example 5 of the present invention.
[0023] Figure 8 This is a schematic diagram of the structure of the valve column from a top view according to Example 5 of the present invention.
[0024] As shown in the figure: 11 is the valve column, 12 is the first exhaust hole, 13 is the valve column end cover, 14 is the guide hole closure, 15 is the float closure, 16 is the guide mechanism, 17 is the second exhaust hole, 18 is the transverse air hole, 21 is the valve cover, 22 is the valve cover seal, 23 is the float outer barrel fence hole, 24 is the float outer barrel, 25 is the convex ridge, 26 is the valve body, 31 is the guide exhaust pipe, 32 is the sliding sleeve, 33 is the float pressure cover, 34 is the return spring, 35 is the secondary exhaust hole, and 36 is the float. DETAILED DESCRIPTION
[0025] Example 1: Reference Figure 1-2 , is a schematic diagram of the structure of Example 1 of the present invention, including a valve body 26, a valve cover 21, a valve column 11, a float closure 15, a valve column end cover 13, a float outer barrel 24, a float outer barrel fence hole 23, a guide exhaust pipe 31, a float pressure cover 33, and a float 36, wherein the valve column 11 is connected to the valve cover 21 by threads, and the end of the valve column 11 extends downward to the middle of the float outer barrel 24, and a positioning member is provided on the outside of the valve column 11, which is connected to the outside of the valve column 11 by threads to control the depth of the end of the valve column 11 extending into the float outer barrel 24 in the valve body 26, the float closure 15 is arranged at the end of the valve column 11 in the valve body 26, and the valve column end cover 13 is a connector with a card interface, which can be connected to a hose.
[0026] A first exhaust hole 12 is provided in the middle of the valve column 11, and a guide mechanism 16 is provided in the first exhaust hole 12. The guide mechanism 16 of this embodiment is composed of three frames arranged axially and fixed in the first exhaust hole 12 by a bracket. The lower end of the guide exhaust pipe 31 is fixedly connected to the float 36, and the tube body of the guide exhaust pipe 31 is placed in the guide mechanism 16.
[0027] The float pressure cover 33 is connected to the guide exhaust pipe 31 through a sliding sleeve 32. A return spring 34 is provided between the float pressure cover 33 and the float 36. A secondary exhaust hole 35 is provided on the guide exhaust pipe 31 at the position of the return spring 34. The secondary exhaust hole 35 connects the inside of the guide exhaust pipe 31 with the float outer barrel 24 at the position of the return spring 34. The sliding sleeve 32 can slide along the guide exhaust pipe 31 under the movement of the float 36 or the action of the return spring 34, so that the secondary exhaust hole 35 is in a closed or open state.
[0028] The inner wall of the float outer barrel 24 is provided with vertical ridges 25 , and eight ridges 25 are provided on the inner wall of the float outer barrel 24 . The ridges 25 in this embodiment are vertical plate-shaped strips.
[0029] Example 2: Reference Figure 3-4, is a schematic diagram of the structure of Example 2 of the present invention. Compared with Example 1, the difference of Example 2 is that a transverse air hole 18 is provided in the downwardly extending portion of the valve column 11.
[0030] Example 3: Reference Figure 5 , is a schematic diagram of the structure of Example 3 of the present invention. Compared with Example 1, the difference of Example 2 is that the convex ridge 25 is the bend of the float outer barrel 24 body, and the plate-like ribs described in this embodiment are arranged on the inner wall of the float outer barrel 24 in three strips.
[0031] Example 4: Reference Figure 6 , is a schematic diagram of the structure of Example 4 of the present invention. Compared with Examples 1 and 2, the difference of Example 3 is that: the valve column end cover 13 is a cover body, and the second exhaust hole 17 on the cover body is a hole on a circle of the side wall of the cover body.
[0032] Example 5: Reference Figure 7-8 , is a structural diagram of Example 5 of the present invention. Compared with the previous embodiments, the difference of this embodiment is that the guide mechanism 16 is a tubular body in the middle axial direction of the first exhaust hole 12, and the first exhaust hole 12 is a plurality of air holes surrounding the guide mechanism 16.
[0033] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, which should also be regarded as the protection scope of the present invention.
Claims
1. A precision composite intake and exhaust valve, comprising a valve body (26), a valve cover (21), a valve stem (11), a float closure (15), a valve stem end cover (13), a float outer barrel (24), a float outer barrel fence hole (23), a guide exhaust pipe (31), a float gland (33), and a float (36), characterized in that: The valve column (11) is connected to the valve cover (21) via threads; A first exhaust hole (12) is provided in the middle of the valve column (11), and a guide mechanism (16) is provided in the first exhaust hole (12); the guide mechanism (16) is a tubular body axially arranged in the middle of the first exhaust hole (12), or is composed of at least two frames arranged axially and fixed in the first exhaust hole (12) by a bracket; The guide exhaust pipe (31) is fixedly mounted on the float (36); the float pressure cover (33) is connected to the guide exhaust pipe (31) via a sliding sleeve (32); a return spring (34) is provided between the float pressure cover (33) and the float (36); and a secondary exhaust hole (35) is provided on the guide exhaust pipe (31) at the position where the return spring (34) is located.
2. The precision compound intake and exhaust valve according to claim 1, characterized in that: The inner wall of the floating ball outer barrel (24) is provided with vertical ridges (25), and at least three ridges (25) are provided on the inner wall of the floating ball outer barrel (24).
3. The precision compound intake and exhaust valve according to claim 2 is characterized in that: The convex ridge (25) is a vertical plate-shaped strip or a bend of the body of the floating ball outer barrel (24).
4. The precision compound intake and exhaust valve according to claim 2, characterized in that: The convex ridges (25) are vertical plate-shaped strips.
5. The precision compound intake and exhaust valve according to any one of claims 1 to 4, characterized in that: The valve column end cover (13) is a cover body, on which a second exhaust hole (17) is provided. At the same time, the cover body completely covers the outlet of the first exhaust hole (12) within the valve column end cover (13).
6. The precision compound intake and exhaust valve according to any one of claims 1 to 4, characterized in that: The end of the valve column (11) in the valve body (26) extends downward to the middle of the float outer barrel (24).
7. The precision compound intake and exhaust valve according to claim 5, characterized in that: The end of the valve column (11) in the valve body (26) extends downward to the middle of the float outer barrel (24).
8. The precision compound intake and exhaust valve according to any one of claims 1 to 4, characterized in that: The float sealing member (15) is arranged at the end of the valve column (11) in the valve body (26).
9. The precision compound intake and exhaust valve according to claim 6, characterized in that: The float sealing member (15) is arranged at the end of the valve column (11) in the valve body (26).
10. The precision compound intake and exhaust valve according to claim 7, characterized in that: The float sealing member (15) is arranged at the end of the valve column (11) in the valve body (26).