Mini manual gate valve

Abstract

The utility model discloses a mini manual gate valve which comprises a valve body, a valve cover is transversely arranged at the top end of the valve body, a connecting block is sleeved at the top end of the valve cover, a push-pull block is sleeved outside the connecting block, a driving shaft is vertically arranged in the valve body, the driving shaft penetrates through the valve cover, and the driving shaft ascends and descends in the valve body. A handle is transversely arranged on one side of the outer portion of the push-pull block and penetrates through the push-pull block, the handle is in driving connection with the driving shaft, a valve plate is vertically inserted into the valve body, the bottom end of the driving shaft is vertically inserted into the valve plate, the driving shaft moves in the valve plate, a steel ball is arranged between the driving shaft and the valve plate, and the steel ball is arranged in the valve plate. The steel balls are located on the two sides of the driving shaft, the steel balls and the driving shaft are in the same movement direction, the steel balls make contact with the valve plate, and steel ball holes are formed in the side edge of the interior of the valve plate.

Description

Technical Field

[0001] The utility model relates to the field of gate valves, in particular to a mini manual gate valve. Background Art

[0002] Most existing gate valves are pneumatic. Air is supplied to the valve via an external air supply, causing a screw to repeatedly move the valve plate vertically, opening and closing the valve. This has the disadvantage that air can only be manually regulated by the external air supply, thereby opening and closing the gate valve. This adjustment process is time-consuming, and fine-tuning the gate valve requires repeated opening and closing of the air supply, which can easily damage the air supply. Therefore, a miniature manual gate valve has been proposed. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0004] A mini manual plug-in valve includes a valve body, a valve cover is horizontally arranged on the top of the valve body, and a connecting block is mounted on the top of the valve cover, and a push-pull block is mounted on the outside of the connecting block. A drive shaft is vertically arranged inside the valve body, and the drive shaft passes through the valve cover, and the drive shaft rises and falls inside the valve body. A handle is horizontally arranged on one side of the outside of the push-pull block, and the handle passes through the push-pull block, and the handle is driven and connected to the drive shaft. A valve plate is vertically inserted inside the valve body, and the bottom end of the drive shaft is vertically inserted inside the valve plate, and the drive shaft moves inside the valve plate. Steel balls are arranged between the drive shaft and the valve plate, and the steel balls are located on both sides of the drive shaft. The steel balls and the drive shaft have the same movement direction, and the steel balls are in contact with the valve plate, and steel ball holes are formed on the side of the inside of the valve plate.

[0005] Preferably, the valve plate is provided with a valve plate seal, and the valve plate seals are respectively located vertically on the side surfaces of the valve plate exterior. The valve plate seals are arranged around the edge of the side surfaces of the valve plate exterior, and the valve plate seals and the valve plate have the same movement direction.

[0006] Preferably, the valve plate is provided with a buffer pad, and the buffer pad is vertically located at the bottom end of the outside of the valve plate, and the valve plate and the buffer pad are in the same transport direction.

[0007] Preferably, a shaft sleeve is provided between the valve body and the valve cover, and the shaft sleeve is vertically located in the middle position of the valve cover, the upper and lower ends of the shaft sleeve are respectively connected to the valve cover, and the drive shaft passes through the shaft sleeve, and the drive shaft moves up and down inside the bearing.

[0008] Preferably, a first connecting support shaft is provided between the push-pull block and the connecting block, and the first connecting support shaft is laterally located at the side of the push-pull block, the first connecting support shaft laterally passes through the push-pull block, and the other end of the first connecting support shaft is connected to the connecting block.

[0009] Preferably, the connecting block is provided with a second connecting support shaft, and the second connecting support shaft is laterally located between the connecting blocks, one end of the handle is horizontally mounted on the second connecting support shaft, and the handle rotates on the second connecting support shaft.

[0010] Compared with the prior art, the beneficial effect of the present invention is that when the driving shaft is driven to move upward at the bottom end of the cylinder body by rotating the handle, the driving shaft and the steel ball follow the same direction movement, and when the driving shaft drives the steel ball to move to the steel ball hole position, the driving shaft rises inside the valve body through the steel ball and the valve plate. At this time, the valve body is in a through-open state and the driving shaft moves downward at the top end of the cylinder body, the driving shaft and the steel ball follow the same direction movement until the side of the valve plate contacts the inner wall of the valve body and the bottom of the valve plate contacts the bottom end of the valve body. At this time, the driving shaft continues to move downward inside the valve plate and squeezes the steel ball, so that the steel ball is pushed to both sides of the valve plate, and the valve plate is expanded and tightly fitted with the inner wall of the valve body. At this time, the valve body is in a sealed closed state, and the valve body is entirely formed by a forging one-piece process, and the valve cover and the valve body are integrated into a one-piece design, which eliminates welding, has better sealing performance, and is more stable in operation.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the structure of a mini manual gate valve;

[0014] Figure 2 This is another structural diagram of a mini manual gate valve;

[0015] Figure 3 This is another structural diagram of a mini manual gate valve.

[0016] Shown in the figure: 1. valve body, 2. buffer pad, 3. valve plate seal, 4. valve plate, 5. steel ball, 6. drive shaft, 7. sleeve, 8. valve cover, 9. connecting block, 10. handle, 11. push-pull block, 12. steel ball hole, 13. first connecting support shaft, 14. second connecting support shaft. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3 In the embodiment of the present invention, the mini manual plug-in valve includes a valve body 1, a valve cover 8 is horizontally arranged on the top of the valve body 1, and a connecting block 9 is set on the top of the valve cover 8, and a push-pull block 11 is set on the outside of the connecting block 9, a drive shaft 6 is vertically arranged inside the valve body 1, and the drive shaft 6 passes through the valve cover 8, and the drive shaft 6 is lifted and lowered inside the valve body 1, a handle 10 is horizontally arranged on one side of the outside of the push-pull block 11, and the handle 10 passes through the push-pull block 11, and the handle 10 is connected to the drive The drive shaft 6 is connected to each other, and the drive shaft 6 is driven to rise and fall inside the valve body 1 by rotating the handle 10. The valve plate 4 is vertically inserted inside the valve body 1, and the bottom end of the drive shaft 6 is vertically inserted inside the valve plate 4, and the drive shaft 6 moves inside the valve plate 4. A steel ball 5 is provided between the drive shaft 6 and the valve plate 4, and the steel balls 5 are located on both sides of the drive shaft 6. The steel balls 5 and the drive shaft 6 are in the same movement direction, and the steel balls 5 are in contact with the valve plate 4, and the valve plate 4 is formed with a steel ball hole 12 on the side of the cylinder body 14, so that when the drive shaft 6 moves upward at the bottom end of the cylinder body 14, the drive shaft 6 and the steel ball 5 follow and move in the same direction, and when the drive shaft 6 drives the steel ball 5 to move to the position of the steel ball hole 12, the drive shaft 6 and the valve plate 4 are raised inside the valve body 1 through the steel ball 5. At this time, the valve body 1 is in a through-open state and when the drive shaft 6 moves downward at the top end of the cylinder body 14, the drive shaft 6 and the steel ball 5 follow and move in the same direction until the side of the valve plate 4 and the side of the valve plate 4 are in contact with each other. The inner wall of the valve body 1 is in contact with the bottom of the valve plate 4 and the bottom of the valve body 1 is in contact with the bottom of the valve plate 4. At this time, the drive shaft 6 continues to move downward inside the valve plate 4 and squeezes the steel ball 5, so that the steel ball 5 is pushed to both sides of the valve plate 4, and then the valve plate 4 is expanded and fits tightly with the inner wall of the valve body 1. At this time, the valve body 1 is in a sealed closed state, and the valve body 1 is entirely formed by a forging one-piece process, and the valve cover 8 and the valve body 1 are integrated into a design, which eliminates welding, has better sealing performance, and works more stably.

[0019] The valve plate 4 is provided with a valve plate seal 3, and the valve plate seal 3 is respectively located vertically on the side surface of the outside of the valve plate 4. The valve plate seal 3 is arranged around the edge of the side surface of the outside of the valve plate 4, and the valve plate seal 3 and the valve plate 4 have the same movement direction, so that when the valve plate 4 rises inside the valve body 1, the valve plate seal 3 will rise with the valve plate 4 inside the valve body 1, and when the valve plate 4 descends inside the valve body 1 and the bottom end of the valve plate 4 is attached to the bottom end of the valve body 1, the valve plate 4 will squeeze the valve plate seal 3, so that the valve plate seal 3 is attached to the inner wall of the valve body 1, and the contact between the valve plate 4 and the valve body 1 is sealed.

[0020] The valve plate 4 is provided with a buffer pad 2, and the buffer pad 2 is vertically located at the bottom end of the outside of the valve plate 4, and the valve plate 4 and the buffer pad 2 are in the same transportation direction, so that when the valve plate 4 descends inside the valve body 1, the valve plate 4 drives the buffer pad 2 to move to the bottom end inside the valve body 1, so that when the buffer pad 2 contacts the bottom end inside the valve body 1, the valve plate 4 stops descending.

[0021] A shaft sleeve 7 is provided between the valve body 1 and the valve cover 8, and the shaft sleeve 7 is vertically located in the middle position of the valve cover 8. The upper and lower ends of the shaft sleeve 7 are respectively connected to the valve cover 8, and the drive shaft 6 passes through the shaft sleeve 7, and the drive shaft 6 moves up and down inside the bearing 8.

[0022] A first connecting support shaft 13 is provided between the push-pull block 11 and the connecting block 9, and the first connecting support shaft 13 is laterally located at the side of the push-pull block 11. The first connecting support shaft 13 laterally passes through the push-pull block 11, and the other end of the first connecting support shaft 13 is connected to the connecting block 9.

[0023] The connecting block 9 is provided with a second connecting support shaft 14, and the second connecting support shaft 14 is located horizontally between the connecting blocks 9. One end of the handle 10 is horizontally mounted on the second connecting support shaft 14, and the handle 10 rotates on the second connecting support shaft 14, thereby supporting the handle 10 in rotation through the cooperation between the connecting block 9 and the second connecting support shaft 14.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. Mini manual gate valve, including a valve body, characterized in that: A valve cover is horizontally arranged on the top of the valve body, and a connecting block is mounted on the top of the valve cover, and a push-pull block is mounted on the outside of the connecting block. A drive shaft is vertically arranged inside the valve body, and the drive shaft passes through the valve cover, and the drive shaft rises and falls inside the valve body. A handle is horizontally arranged on one side of the outside of the push-pull block, and the handle passes through the push-pull block, and a driving connection is established between the handle and the drive shaft. A valve plate is vertically inserted into the inside of the valve body, and the bottom end of the drive shaft is vertically inserted into the inside of the valve plate, and the drive shaft moves inside the valve plate. Steel balls are arranged between the drive shaft and the valve plate, and the steel balls are located on both sides of the drive shaft. The steel balls and the drive shaft have the same movement direction, and the steel balls are in contact with the valve plate, and steel ball holes are formed on the side of the inside of the valve plate.

2. The mini manual gate valve according to claim 1, characterized in that: The valve plate is provided with a valve plate seal, and the valve plate seals are respectively vertically located on the side surfaces of the valve plate. The valve plate seals are arranged around the edge of the side surfaces of the valve plate, and the valve plate seals and the valve plate have the same movement direction.

3. The mini manual gate valve according to claim 1, characterized in that: The valve plate is provided with a buffer pad, and the buffer pad is vertically located at the bottom end of the outside of the valve plate, and the valve plate and the buffer pad are in the same transportation direction.

4. The mini manual gate valve according to claim 1, characterized in that: A shaft sleeve is provided between the valve body and the valve cover, and the shaft sleeve is vertically located in the middle position of the valve cover. The upper and lower ends of the shaft sleeve are respectively connected to the valve cover, and the drive shaft passes through the shaft sleeve, and the drive shaft moves up and down inside the bearing.

5. The mini manual gate valve according to claim 1, characterized in that: A first connecting support shaft is provided between the push-pull block and the connecting block, and the first connecting support shaft is laterally located at the side of the push-pull block, the first connecting support shaft laterally passes through the push-pull block, and the other end of the first connecting support shaft is connected to the connecting block.

6. The mini manual gate valve according to claim 1, characterized in that: The connecting block is provided with a second connecting support shaft, and the second connecting support shaft is laterally located between the connecting blocks. One end of the handle is horizontally mounted on the second connecting support shaft, and the handle rotates on the second connecting support shaft.

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