Gas ballast valve locking mechanism

Abstract

The utility model belongs to the technical field of gas ballast valves, and particularly relates to a gas ballast valve locking mechanism which comprises a valve body, a valve seat is arranged at the lower end of the valve body, an air inlet cavity is fixedly connected to the upper end of the valve body, an installation shaft is fixedly connected to the upper end of the air inlet cavity, a stainless steel cavity is installed on the outer side of the installation shaft through a bearing, and the stainless steel cavity is fixedly connected with the valve seat. And a rubber groove is formed in the surface of the air inlet cavity, a rubber ring is fixedly connected to the inner wall of the rubber groove and makes contact with the stainless steel cavity, and an air inlet hole is formed in the left side of the rubber ring. According to the gas ballast valve, the air inlet, the rubber ring, the gas ballast opening and other structures are used in cooperation, the air inlet amount of the gas ballast valve can be adaptively adjusted, the stainless steel cavity can be limited under the insertion rod, the insertion hole, the spring and other structures, it is guaranteed that the stainless steel cavity is in a locked state after the position is adjusted, and the problem of deviation of the stainless steel cavity is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas ballast valves, in particular to a gas ballast valve locking mechanism. Background Technique

[0002] The gas ballast valve is mainly used in cooperation with a vacuum pump. When the valve is opened and the air intake is adjusted, when the rotor rotates to a certain position, air enters the compression chamber through this hole to reduce the compression ratio, so that most of the steam will not condense and is discharged out of the pump together with the introduced gas.

[0003] In the utility model patent with the patent authorization announcement number CN207715344U, a gas ballast valve is disclosed, which includes a valve body. An air intake passage is opened on the valve body. It also includes a valve cover on which several air intake holes are opened. One end of the valve body is threadedly connected to the valve cover. The other end of the valve body is provided with an installation thread section for fixing to the pump body. A sealing gasket is arranged on the end face of the valve cover facing the air intake passage.

[0004] However, the existing gas ballast valves also have certain deficiencies. When the existing gas ballast valves are in use, due to the influence of factors such as gas impact and vibration, the stainless steel cavity after the rotation position will be displaced, which will further affect the subsequent air intake volume. Content of the Utility Model

[0005] The purpose of the utility model is to provide a gas ballast valve locking mechanism, which solves the problem that when the existing gas ballast valves are in use, due to the influence of factors such as gas impact and vibration, the stainless steel cavity after the rotation position will be displaced, which will further affect the subsequent air intake volume.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A gas ballast valve locking mechanism includes a valve body. A valve seat is arranged at the lower end of the valve body. An air intake cavity is fixedly connected to the upper end of the valve body. An installation shaft is fixedly connected to the upper end of the air intake cavity. A stainless steel cavity is installed on the outer side of the installation shaft through a bearing. A rubber groove is opened on the surface of the air intake cavity. A rubber ring is fixedly connected to the inner wall of the rubber groove. The rubber ring contacts the stainless steel cavity. An air intake hole is opened on the left side of the rubber ring. A locking mechanism is jointly arranged on the stainless steel cavity and the air intake cavity. A filtering mechanism is arranged inside the valve body.

[0007] Preferably, four gas ballast ports arranged in a circular array are opened on the surface of the stainless steel cavity. The apertures of the four gas ballast ports gradually decrease. The aperture of one of the gas ballast ports is the same as that of the air intake hole. Through the setting of the gas ballast ports, the air intake volume can be adjusted for use.

[0008] Preferably, the locking mechanism includes a jack. A jack is provided on the surface of the intake cavity. An installation cylinder is fixedly connected to the left side of the stainless steel cavity. A plug rod is slidably connected to the inner wall of the installation cylinder. The plug rod is slidably connected to the stainless steel cavity and the intake cavity. A spring is arranged on the outer side of the plug rod. One end of the spring is welded to the moving disc of the plug rod, and the other end of the spring is welded to the installation cylinder. Through the arrangement of the plug rod, jack and other structures, the stainless steel cavity can be limited for use.

[0009] Preferably, there are four jacks, and the four jacks are arranged in a circular array on the intake cavity. Through the arrangement of the jacks, it is convenient to cooperate with the plug rod for insertion.

[0010] Preferably, the filtering mechanism includes a micro motor. The micro motor is installed on the inner wall of the valve body through a support member. The output shaft of the micro motor is fixedly connected to a filter screen. The filter screen is rotatably connected to the valve body. A fixing rod is fixedly connected to the inner wall of the valve body and above the filter screen. A brush is fixedly connected to the lower side of the fixing rod. The brush contacts the filter screen. Through the arrangement of the filter screen, dust and other impurities in the air can be filtered out. Under the structures of the micro motor, brush and other structures, the filter screen can be cleaned.

[0011] Preferably, two symmetrically distributed limiting pieces are fixedly connected to the inner wall of the valve body, and each limiting piece contacts the output shaft of the micro motor. Through the arrangement of the limiting pieces, the rotation of the output shaft of the micro motor can be limited.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the combined use of structures such as the air inlet, rubber ring, air ballast port, etc., the present utility model can adaptively adjust the air intake of the air ballast valve, and under the structures of the plug rod, jack, spring, etc., the stainless steel cavity can be limited to ensure that the stainless steel cavity is in a locked state after the adjustment of the position, avoiding the deviation problem of the stainless steel cavity.

[0014] 2. Through the arrangement of the filter screen, the present utility model can filter dust and the like from the incoming air. Driven by the micro motor, the filter screen can rotate, and in combination with the arrangement of the brush, the filter screen can be cleaned to ensure the flow effect of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 is the Figure 1 partial sectional three-dimensional view of the present utility model;

[0017] Figure 3For the present utility model Figure 1 Front elevation sectional view;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the installation cylinder.

[0019] In the figure: 1, valve body; 2, valve seat; 3, intake cavity; 4, installation shaft; 5, stainless steel cavity; 6, glue groove; 7, rubber ring; 8, intake hole; 9, gas ballast port; 10, locking mechanism; 11, filtering mechanism; 101, jack; 102, installation cylinder; 103, insertion rod; 104, spring; 111, micro motor; 112, filter screen; 113, limiting piece; 114, fixing rod; 115, brush hair. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , a gas ballast valve locking mechanism, including a valve body 1, a valve seat 2 is arranged at the lower end of the valve body 1, an intake cavity 3 is fixedly connected to the upper end of the valve body 1, an installation shaft 4 is fixedly connected to the upper end of the intake cavity 3, a stainless steel cavity 5 is installed on the outer side of the installation shaft 4 through a bearing, a glue groove 6 is opened on the surface of the intake cavity 3, a rubber ring 7 is fixedly connected to the inner wall of the glue groove 6, the rubber ring 7 contacts the stainless steel cavity 5, and an intake hole 8 is opened on the left side of the rubber ring 7.

[0022] Please refer to Figure 1 、 Figure 2 , four gas ballast ports 9 arranged in a circular array are opened on the surface of the stainless steel cavity 5, the apertures of the four gas ballast ports 9 decrease in sequence, and the aperture of one of the gas ballast ports 9 is the same as that of the intake hole 8. Through the arrangement of the gas ballast ports 9, the intake air volume can be adjusted for use.

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4, a locking mechanism 10 is jointly provided on the stainless - steel cavity 5 and the air - inlet cavity 3. The locking mechanism 10 includes a jack 101. The surface of the air - inlet cavity 3 is provided with the jack 101. There are four jacks 101, and the four jacks 101 are arranged in a circular array on the air - inlet cavity 3. Through the setting of the jack 101, it is convenient to cooperate with the plug rod 103 for insertion. The left side of the stainless - steel cavity 5 is fixedly connected with an installation cylinder 102. The inner wall of the installation cylinder 102 is slidably connected with a plug rod 103. The plug rod 103 is slidably connected with the stainless - steel cavity 5 and the air - inlet cavity 3. A spring 104 is arranged on the outer side of the plug rod 103. One end of the spring 104 is welded to the moving disk of the plug rod 103, and the other end of the spring 104 is welded to the installation cylinder 102. Through the setting of structures such as the plug rod 103 and the jack 101, the stainless - steel cavity 5 can be limited in use.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , a filtering mechanism 11 is arranged inside the valve body 1. The filtering mechanism 11 includes a micro - motor 111. The inner wall of the valve body 1 is installed with the micro - motor 111 through a support member. The output shaft of the micro - motor 111 is fixedly connected with a filter screen 112. The filter screen 112 is rotatably connected with the valve body 1. Two symmetrically distributed limiting pieces 113 are fixedly connected to the inner wall of the valve body 1. Each limiting piece 113 contacts the output shaft of the micro - motor 111. Through the setting of the limiting pieces 113, the rotation of the output shaft of the micro - motor 111 can be limited. A fixing rod 114 is fixedly connected to the inner wall of the valve body 1 and above the filter screen 112. A brush 115 is fixedly connected to the lower side of the fixing rod 114. The brush 115 contacts the filter screen 112. Through the setting of the filter screen 112, dust and other impurities in the air can be filtered out. Under the structures such as the micro - motor 111 and the brush 115, the filter screen 112 can be cleaned.

[0025] The specific implementation process of the present utility model is as follows: When in use, by pulling the end - plate at the left end of the plug rod 103 to move to the left, the plug rod 103 is driven to move, and then the moving disk is driven to move. The spring 104 deforms, so that the plug rod 103 disengages from the jack 101. Then, the stainless - steel cavity 5 is pushed to rotate to switch the position of the air - lock port 9. Since the aperture of the air - lock port 9 decreases in sequence, the air intake amount is adjusted. Under the action of the deformation amount of the rubber ring 7, the other three air - lock ports 9 are sealed.

[0026] During this process, the end plate can be loosened to enable the spring 104 to recover its deformation, so as to push the plug rod 103 into contact with the surface of the intake cavity 3. Under the action of the rotational force, the plug rod 103 can slide along the surface of the intake cavity 3. When the plug rod 103 slides into the next jack 101, the spring 104 completely recovers its deformation to push the plug rod 103 into the jack 101, limit the stainless steel cavity 5, and lock the stainless steel cavity 5.

[0027] Through the setting of the filter screen 112, dust and other impurities in the flowing air can be filtered out. The micro motor 111 is started to drive the output shaft to rotate, so as to drive the filter screen 112 to rotate, make the brush hairs 115 slide along the surface of the filter screen 112, and filter out the particulate impurities such as dust attached to the filter screen 112 to ensure the flow effect of the filter screen 112.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas ballast valve locking mechanism, comprising a valve body (1), characterized in that: A valve seat (2) is provided at the lower end of the valve body (1). An air inlet cavity (3) is fixedly connected to the upper end of the valve body (1). An installation shaft (4) is fixedly connected to the upper end of the air inlet cavity (3). A stainless-steel cavity (5) is installed on the outer side of the installation shaft (4) through a bearing. A glue groove (6) is formed on the surface of the air inlet cavity (3). A rubber ring (7) is fixedly connected to the inner wall of the glue groove (6). The rubber ring (7) contacts the stainless-steel cavity (5). An air inlet hole (8) is formed on the left side of the rubber ring (7). A locking mechanism (10) is jointly provided on the stainless-steel cavity (5) and the air inlet cavity (3). A filtering mechanism (11) is arranged inside the valve body (1).

2. The air ballast valve locking mechanism according to claim 1, characterized in that: Four air bleeding ports (9) arranged in a circular array are formed on the surface of the stainless-steel cavity (5). The apertures of the four air bleeding ports (9) gradually decrease. The aperture of one of the air bleeding ports (9) is the same as that of the air inlet hole (8).

3. The air damping valve locking mechanism according to claim 1, characterized in that: The locking mechanism (10) includes a jack (101). The jack (101) is formed on the surface of the air inlet cavity (3). An installation cylinder (102) is fixedly connected to the left side of the stainless-steel cavity (5). A plug rod (103) is slidably connected to the inner wall of the installation cylinder (102). The plug rod (103) is slidably connected to the stainless-steel cavity (5). The plug rod (103) is slidably connected to the air inlet cavity (3). A spring (104) is arranged on the outer side of the plug rod (103). One end of the spring (104) is welded to the moving disk of the plug rod (103). The other end of the spring (104) is welded to the installation cylinder (102).

4. The air ballast valve locking mechanism according to claim 3, characterized in that: Four jacks (101) are provided. The four jacks (101) are arranged in a circular array on the air inlet cavity (3).

5. The air bleeding valve locking mechanism according to claim 1, wherein: The filtering mechanism (11) includes a micro motor (111). The micro motor (111) is installed on the inner wall of the valve body (1) through a support member. The output shaft of the micro motor (111) is fixedly connected to a filter screen (112). The filter screen (112) is rotatably connected to the valve body (1). A fixing rod (114) is fixedly connected to the inner wall of the valve body (1) and above the filter screen (112). A brush (115) is fixedly connected to the lower side of the fixing rod (114). The brush (115) contacts the filter screen (112).

6. The air ballast valve locking mechanism according to claim 5, characterized in that: Two symmetrically distributed limiting pieces (113) are fixedly connected to the inner wall of the valve body (1). Each limiting piece (113) contacts the output shaft of the micro motor (111).

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