Valve bank special for carbon dioxide pump

Abstract

The utility model discloses a special valve group for a carbon dioxide pump, which belongs to the technical field of pump valves, and comprises a shell, one side of the shell is fixedly connected with an air inlet pipe, the air inlet pipe extends into the shell and is fixedly connected with an adjusting pipe, the side wall of the adjusting pipe is fixedly connected with an air outlet pipe, and the air outlet pipe is fixedly connected with an air inlet pipe. An adjusting rod is slidably connected into an upper opening of the adjusting pipe, a sealing plug is fixedly connected to the end, slidably connected to the adjusting pipe, of the adjusting rod, a pressure spring is fixedly connected to the upper end of the adjusting rod, a top plate is fixedly connected to the top surface of the pressure spring, a piston cylinder is fixedly connected to the top surface of the mounting plate, and a piston is arranged in the piston cylinder. The lower end of the piston is fixedly connected with a lower pressing rod, slidably extends to the position below the mounting plate and is fixedly connected with the top plate, and the piston cylinder communicates with the air outlet pipe through an air conveying pipe. Compared with the prior art, the device can effectively and automatically adjust the pressure of the carbon dioxide in the pipeline, so that the conveying safety of the carbon dioxide is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pump valves, in particular to a special valve group for a carbon dioxide pump. Background Technique

[0002] Carbon dioxide, a carbon oxide compound with the chemical formula C02, is a colorless, odorless or colorless and odorless gas at normal temperature and pressure, and its aqueous solution has a slightly sour taste. When the carbon dioxide gas is pressurized until it meets a low-pressure environment, the gaseous carbon dioxide can become liquid carbon dioxide. Carbon dioxide has a wide range of applications in life. For example, photosynthesis in plants uses carbon dioxide to form sugars in the body.

[0003] In the existing transportation of carbon dioxide, it is mostly transported through pipelines, and carbon dioxide is generally transported under high pressure. Therefore, the pressure in the pipeline is relatively high and unstable. Therefore, it is necessary to adjust the pressure in the pipeline. Therefore, there is an urgent need for a special valve group for a carbon dioxide pump to achieve this purpose. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a special valve group for a carbon dioxide pump to solve the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A special valve group for a carbon dioxide pump, including a housing for installing the special valve group of the carbon dioxide pump. One side of the housing is fixedly connected with an air inlet pipe, and the air inlet pipe extends into the housing and is fixedly connected with an adjusting pipe. An air outlet pipe is fixedly connected to the side wall of the adjusting pipe, and the air outlet pipe extends to the outside of the housing. A plurality of support rods are fixedly connected to the top surface of the housing, and a mounting plate is fixedly connected to the top surfaces of the plurality of support rods. An adjusting rod is slidably connected in the upper opening of the adjusting pipe, and the upper end of the adjusting rod slides through to the upper part of the housing. One end of the adjusting rod slidably connected to the adjusting pipe is fixedly connected with a sealing plug. Both the sealing plug and the lower part inside the adjusting pipe are funnel-shaped. The upper end of the adjusting rod is fixedly connected with a compression spring, and the top surface of the compression spring is fixedly connected with a top plate. A piston cylinder is fixedly connected to the top surface of the mounting plate. A piston is slidably connected inside the piston cylinder, and a downward pressure rod is fixedly connected to the lower end of the piston and slides and extends to the lower part of the mounting plate and is fixedly connected with the top plate. An air delivery pipe is fixedly connected to the top surface of the piston cylinder, and the end of the air delivery pipe is communicated with the air outlet pipe.

[0006] Preferably, a limiting cylinder is fixedly connected to the top surface of the adjusting rod, and a telescopic rod is slidably connected inside the limiting cylinder, and the top end of the telescopic rod is fixedly connected with the top plate.

[0007] Preferably, limiting grooves are symmetrically formed on the inner wall of the limiting cylinder, and limiting blocks are symmetrically and fixedly connected to the rod wall of the telescopic rod.

[0008] Preferably, the two limiting blocks fixedly connected to the side wall of the telescopic rod are respectively slidably connected to the inside of the two limiting grooves formed on the inner wall of the limiting cylinder.

[0009] Preferably, a plurality of vertical rods are fixedly connected to the top surface of the housing, and the top surfaces of the plurality of vertical rods are connected to the lower end of the mounting plate.

[0010] Preferably, the plurality of vertical rods all slidably pass through the top plate.

[0011] Preferably, a sealing ring is fixedly sleeved on the outer wall of the piston.

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

[0013] For the special valve group of the carbon dioxide pump, when the pressure in the air outlet pipe is too high, since an air delivery pipe is connected between the air outlet pipe and the piston cylinder, more carbon dioxide will be forced into the upper part inside the piston cylinder as the pressure in the air outlet pipe is too high. The piston inside the piston cylinder will be forced to move downward, driving the lower pressing rod to move downward and pressing the compression spring through the top plate to compress it downward. At the same time, the adjusting rod fixedly connected to its lower end will be pushed by the compression spring to contract into the adjusting pipe. Meanwhile, the sealing plug will be driven by the adjusting rod to press downward. At this time, since both the outer wall of the sealing plug and the lower part inside the adjusting pipe are funnel-shaped, the flow rate of carbon dioxide will decrease as the sealing plug presses downward, thus reducing the amount of carbon dioxide entering the inside of the air outlet pipe. When the carbon dioxide pressure in the air outlet pipe drops to a predetermined value, the piston and the sealing plug will move upward and restore the flow rate of carbon dioxide. Compared with the prior art, the device can effectively automatically adjust the pressure of carbon dioxide in the pipeline, thereby greatly improving the transportation safety of carbon dioxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is a three-dimensional sectional view of the housing in the present utility model;

[0017] Figure 3Schematic diagrams of structures such as the intake pipe, adjustment pipe, and adjustment rod in the present utility model;

[0018] Figure 4 Three-dimensional cross-sectional view of the intake pipe and adjustment pipe in the present utility model;

[0019] Figure 5 Three-dimensional cross-sectional view of the piston cylinder in the present utility model;

[0020] Figure 6 Planar cross-sectional view of the limit cylinder in the present utility model.

[0021] Explanation of reference numerals:

[0022] In the figure: 1, housing; 2, intake pipe; 3, adjustment pipe; 4, outlet pipe; 5, support rod; 6, mounting plate; 7, adjustment rod; 8, compression spring; 9, top plate; 10, piston cylinder; 11, piston; 12, downward pressure rod; 13, gas transmission pipe; 14, sealing plug; 15, limit cylinder; 16, telescopic rod; 17, limit block; 18, vertical rod; 19, sealing ring. Specific implementation manners

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0024] Unless otherwise defined, the up, down, left, right, front, back, inner, and outer directions involved in this article are based on the up, down, left, right, front, back, inner, and outer directions in the figures shown in the present utility model, which are hereby explained together.

[0025] Connection methods can adopt existing methods such as bonding, welding, bolt connection, etc., depending on actual needs.

[0026] As Figures 1 to 6 Shown, the main structure of a special valve group for a carbon dioxide pump is a housing 1. One side of the housing 1 is fixedly connected with an intake pipe 2, and the intake pipe 2 extends into the housing 1 and is fixedly connected with an adjustment pipe 3. The end of the intake pipe 2 extending into the housing 1 is communicated with the lower end of the adjustment pipe 3. An outlet pipe 4 is fixedly connected to the side wall of the adjustment pipe 3, and the outlet pipe 4 extends to the outside of the housing 1. A plurality of support rods 5 are fixedly connected to the top surface of the housing 1, and a mounting plate 6 is fixedly connected to the top surfaces of the plurality of support rods 5;

[0027] A regulating rod 7 is slidably connected inside the upper opening of the regulating pipe 3, and the upper end of the regulating rod 7 slidably passes above the housing 1. One end of the regulating rod 7 slidably connected to the regulating pipe 3 is fixedly connected with a sealing plug 14. Both the sealing plug 14 and the lower part inside the regulating pipe 3 are funnel-shaped. Therefore, as the sealing plug 14 is pressed down, the flow rate of carbon dioxide will be reduced, thereby reducing the carbon dioxide entering the inside of the air outlet pipe 4. On the contrary, the flow rate of carbon dioxide will increase. Connect the air inlet pipe 2 to the source end of carbon dioxide. With the pressure of carbon dioxide, the sealing plug 14 in the regulating pipe 3 will be pushed upward, and at the same time, the regulating rod 7 will be driven upward. Subsequently, the compression spring 8 on its top surface will be pushed upward and compressed by the regulating rod 7. At the same time, the top plate 9 at its upper end and the downward pressure rod 12 at the upper end of the top plate 9 will be pushed into the inside of the piston cylinder 10 and the piston 11 will be pushed upward. At this time, as the sealing plug 14 moves upward, carbon dioxide will enter the inside of the regulating pipe 3 and flow into the inside of the air outlet pipe 4 fixedly connected to the side wall of the regulating pipe 3;

[0028] The upper end of the regulating rod 7 is fixedly connected with a compression spring 8. The top surface of the compression spring 8 is fixedly connected with a top plate 9. The top surface of the housing 1 is fixedly connected with a plurality of vertical rods 18. The top surfaces of the plurality of vertical rods 18 are connected to the lower end of the mounting plate 6. The plurality of vertical rods 18 all slidably pass through the top plate 9. Thanks to the arrangement of the plurality of vertical rods 18, the contraction of the top plate 9 and the compression spring 8 fixedly connected between the top plate 9 and the regulating rod 7 can be effectively limited, thereby improving the stability of the compression spring 8 during operation; A limiting cylinder 15 is fixedly connected to the top surface of the regulating rod 7. A telescopic rod 16 is slidably connected inside the limiting cylinder 15. The top end of the telescopic rod 16 is fixedly connected with the top plate 9. The inner wall of the limiting cylinder 15 is symmetrically provided with limiting grooves. Two limiting blocks 17 are symmetrically fixedly connected to the rod wall of the telescopic rod 16. The two limiting blocks 17 fixedly connected to the side wall of the telescopic rod 16 are respectively slidably connected inside the two limiting grooves opened on the inner wall of the limiting cylinder 15. At this time, thanks to the arrangement of the limiting cylinder 15 and the telescopic rod 16, the contraction and stretching of the compression spring 8 can be further limited;

[0029] At the same time, thanks to the fact that the limiting blocks 17 fixedly connected to the side wall of the telescopic rod 16 are respectively slidably connected inside the limiting grooves opened on the inner wall of the limiting cylinder 15, the moving direction of the telescopic rod 16 can be effectively limited. The mounting plate 6 is fixedly connected with a piston cylinder 10 on its top surface. A piston 11 is slidably connected inside the piston cylinder 10. A sealing ring 19 is fixedly sleeved on the outer wall of the piston 11. The lower end of the piston 11 is fixedly connected with a downward pressure rod 12 and slidably extends below the mounting plate 6 and is fixedly connected with the top plate 9. The top surface of the piston cylinder 10 is fixedly connected with an air delivery pipe 13. The end of the air delivery pipe 13 is communicated with the air outlet pipe 4.

[0030] Working principle

[0031] When the special valve group for the carbon dioxide pump is in use, first connect the intake pipe 2 to the source end of carbon dioxide. As the pressure of carbon dioxide increases, it will push the sealing plug 14 in the regulating pipe 3 upward, and at the same time drive the regulating rod 7 upward. Subsequently, the compression spring 8 on the top surface of the regulating rod 7 will be pushed upward and compressed by the regulating rod 7. At the same time, the top plate 9 at the upper end of the compression spring 8 and the downward pressing rod 12 at the upper end of the top plate 9 will be pushed into the interior of the piston cylinder 10 and push the piston 11 upward. At this time, as the sealing plug 14 moves upward, carbon dioxide will enter the interior of the regulating pipe 3 and flow into the interior of the outlet pipe 4 fixedly connected to the side wall of the regulating pipe 3. When the pressure in the outlet pipe 4 is too high, since there is an air delivery pipe 13 connecting the outlet pipe 4 and the piston cylinder 10, more carbon dioxide will be forced into the upper part of the interior of the piston cylinder 10 as the pressure in the outlet pipe 4 is too high. At this time, the piston 11 inside the piston cylinder 10 will also be forced to move downward, and at the same time drive the downward pressing rod 12 fixedly connected to the lower end of the piston 11 to move downward and drive the top plate 9 fixedly connected to its lower end to apply pressure to the compression spring 8 at its lower end to compress it downward. At the same time, the compression spring 8 will push the regulating rod 7 fixedly connected to its lower end to contract into the interior of the regulating pipe 3, and at the same time drive the sealing plug 14 to press downward through the regulating rod 7. At this time, since both the sealing plug 14 and the lower part of the interior of the regulating pipe 3 are funnel-shaped, as the sealing plug 14 presses downward, the flow rate of carbon dioxide will decrease, thereby reducing the amount of carbon dioxide entering the interior of the outlet pipe 4. When the carbon dioxide pressure in the outlet pipe 4 drops to a predetermined value, at this time the piston 11 and the sealing plug 14 will move upward and restore the flow rate of carbon dioxide.

[0032] It should be noted that in this article, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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 special valve group for a carbon dioxide pump, comprising a housing (1) for installing the special valve group of the carbon dioxide pump, characterized in that: One side of the housing (1) is fixedly connected with an air inlet pipe (2), and the air inlet pipe (2) extends into the housing (1) and is fixedly connected with an adjusting pipe (3). An air outlet pipe (4) is fixedly connected to the side wall of the adjusting pipe (3), and the air outlet pipe (4) extends to the outside of the housing (1). A plurality of support rods (5) are fixedly connected to the top surface of the housing (1), and the top surfaces of the plurality of support rods (5) are fixedly connected with a mounting plate (6). An adjusting rod (7) is slidably connected in the upper opening of the adjusting pipe (3), and the upper end of the adjusting rod (7) slides through above the housing (1). One end of the adjusting rod (7) slidably connected to the adjusting pipe (3) is fixedly connected with a sealing plug (14). Both the sealing plug (14) and the lower part inside the adjusting pipe (3) are funnel-shaped. The upper end of the adjusting rod (7) is fixedly connected with a compression spring (8), and the top surface of the compression spring (8) is fixedly connected with a top plate (9). A piston cylinder (10) is fixedly connected to the top surface of the mounting plate (6). A piston (11) is slidably connected inside the piston cylinder (10), and the lower end of the piston (11) is fixedly connected with a downward pressure rod (12) and slides and extends below the mounting plate (6) and is fixedly connected with the top plate (9). An air delivery pipe (13) is fixedly connected to the top surface of the piston cylinder (10), and the end of the air delivery pipe (13) is communicated with the air outlet pipe (4).

2. The special valve group for a carbon dioxide pump according to claim 1, wherein: A limiting cylinder (15) is fixedly connected to the top surface of the adjusting rod (7), and a telescopic rod (16) is slidably connected inside the limiting cylinder (15), and the top end of the telescopic rod (16) is fixedly connected with the top plate (9).

3. The special valve group for a carbon dioxide pump according to claim 2, wherein: Limiting grooves are symmetrically formed in the inner wall of the limiting cylinder (15), and limiting blocks (17) are symmetrically fixedly connected to the rod wall of the telescopic rod (16).

4. The special valve group for a carbon dioxide pump according to claim 3, characterized in that: The two limiting blocks (17) fixedly connected to the side wall of the telescopic rod (16) are respectively slidably connected inside the two limiting grooves formed in the inner wall of the limiting cylinder (15).

5. The special valve group for a carbon dioxide pump according to claim 1, characterized in that: A plurality of vertical rods (18) are fixedly connected to the top surface of the housing (1), and the top surfaces of the plurality of vertical rods (18) are connected to the lower end of the mounting plate (6).

6. The special valve group for a carbon dioxide pump according to claim 5, wherein: The plurality of vertical rods (18) all slide through the top plate (9).

7. A special valve group for a carbon dioxide pump according to claim 1, characterized in that: A sealing ring (19) is fixedly sleeved on the outer wall of the piston (11).

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