Novel air-driven pipe valve

Abstract

The utility model discloses a novel air-driven pipe valve, which relates to the technical field of valves and comprises a valve casing, a flange base, a movable valve, an input component and an output component. One end of the valve shell is provided with an air inlet channel. The flange base is connected with the valve shell and arranged at the end opposite to the air inlet channel, and an inserting groove is formed in the middle of the flange base in the axial direction. The movable valve is arranged in the valve shell in a sliding mode, the movable valve comprises an insertion piece part extending into the insertion groove, and a through hole is formed in the insertion piece part; the input assembly and the output assembly are coaxially arranged and connected to the two sides of the flange base respectively, the input assembly and the output assembly are both communicated with the inserting groove, the through hole can coincide with or be staggered from the input assembly and the output assembly along with the vertical movement of the inserting piece part in the inserting groove, and therefore the input assembly and the output assembly are conducted or cut off.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a novel gas-driven pipe valve. Background Art

[0002] With the continuous improvement of industrial automation and the continuous development of pipeline fluid control technology, the application of air-driven pipe valves is becoming more and more extensive. Air-driven pipe valves are compact in structure and easy to install and maintain. There are many types of air-driven pipe valves, and the uses of air-driven pipe valves with different structures are also different. The air-driven pipe clamp valve is one of them. During installation, the conveying pipeline passes through the valve body. A clamping mechanism is set on the valve body. After the gas is introduced through the air source, the clamping mechanism is activated to squeeze and deform the conveying pipeline to achieve the purpose of interception. After long-term use, this type of pipe valve is easily damaged by the clamping mechanism due to repeated clamping of the conveying pipeline, and parts need to be replaced frequently. Some other air-driven valves, by setting a piston in the valve body, use the air source to pressurize the upper part of the valve core, so that the valve core moves downward and blocks the air pipe connection ports on both sides to achieve the purpose of interception. However, due to the wide lower end face of the valve core, when the pressure fluctuation of the conveying fluid is large, the force of the conveying fluid on the valve core may be greater than the force of the air source on the valve core, resulting in the valve core being lifted and turned on. In short, this type of air-driven valve is easily affected by the pressure of the conveyed fluid. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a new type of air-driven pipe valve, which will not repeatedly clamp the conveying pipeline and cause damage, has good interception stability, and is not easily affected by fluctuations in the pressure of the conveyed fluid.

[0004] In order to achieve the purpose, the following technical solutions are provided:

[0005] A novel air-driven pipe valve comprises a valve housing, a flange base, a movable valve, an input assembly and an output assembly; wherein an air inlet passage is provided at one end of the valve housing; the flange base is connected to the valve housing and is arranged on the end opposite to the air inlet passage, and a slot is axially provided in the middle of the flange base; the movable valve is slidably arranged in the valve housing, and the movable valve comprises an insert portion extending into the slot, and a through hole is provided on the insert portion; the input assembly and the output assembly are coaxially arranged, respectively connected to two sides of the flange base, and both the input assembly and the output assembly are connected to the slot, and as the insert portion moves up and down in the slot, the through hole can overlap or stagger with the input assembly and the output assembly, thereby making the input assembly and the output assembly conductive or cut off.

[0006] Furthermore, the input assembly and the output assembly both include a connecting sleeve, a soft plug and a catheter. One end of the connecting sleeve is connected to the retaining edge base. The soft plug is made of soft elastic material. The soft plug and the connecting sleeve are coaxially arranged inside it. One end of the catheter is inserted into the soft plug.

[0007] Furthermore, a notch is provided inside the soft plug, and a protrusion is provided outside the end of the catheter, and the protrusion and the notch are used to fix the catheter and the soft plug.

[0008] Furthermore, one end of the soft plug extends into the slot, and the side surface of the inserting piece contacts the end of the soft plug.

[0009] Furthermore, the movable valve comprises a piston part, which is slidably arranged in the valve housing, the space at the upper end of the piston part is communicated with the air inlet passage, and a return spring is arranged between the piston part and the retaining edge base.

[0010] Furthermore, an annular sealing groove is provided on the side wall of the piston part, and a sealing ring is provided on the sealing groove.

[0011] Furthermore, an air connector for connecting to an air source pipeline is provided on the air inlet passage, and the air connector is communicated with the air inlet passage.

[0012] Furthermore, the gas joint is L-shaped, and a connecting hole communicating with the air inlet passage is provided on the side of the valve housing, and one end of the gas joint is fixedly connected to the connecting hole.

[0013] Furthermore, the gas joint and the connecting hole are fixed by threaded connection.

[0014] Furthermore, the retaining edge base is arranged in the end of the valve housing, and the side surfaces of the valve housing and the retaining edge base are provided with through pin holes, and pins are arranged on the pin holes.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. An input assembly and an output assembly are respectively arranged on both sides of the retaining edge base, and a movable valve that can slide in the valve housing is arranged between the input assembly and the output assembly. The movable valve is used to cut off the flow of the input assembly and the output assembly. The movable valve will not clamp the input assembly and the output assembly during operation. Compared with the existing pinch valve, the conveying pipeline will not be repeatedly clamped, thereby not causing damage to the conveying pipeline.

[0017] 2. The movable valve includes an insert portion, which has a small thickness, so that the lower end surface area is also small, so that the upward force of the transported fluid on the movable valve is small, and the insert portion will not be lifted when the pressure of the transported fluid fluctuates greatly, thereby having flow cutoff stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a longitudinal sectional view of the utility model.

[0020] Figure 3 yes Figure 2Magnified view of area A.

[0021] Figure 4 It is another longitudinal sectional view of the utility model.

[0022] Numbers in the figure: 1. valve housing; 2. flange base; 3. pin hole; 4. pin; 5. gas joint; 6. input assembly; 61. connecting sleeve; 62. soft plug; 63. conduit; 7. output assembly; 8. movable valve; 81. piston part; 82. insert part; 9. return spring; 10. slot; 11. through hole; 12. air inlet channel; 13. sealing groove; 14. sealing ring; 15. notch; 16. protrusion. DETAILED DESCRIPTION

[0023] In order to better understand the purpose, technical solution and technical effect of the utility model, the utility model is further explained in conjunction with the accompanying drawings and embodiments. At the same time, it is stated that the embodiments described below are only used to explain the utility model and are not used to limit the utility model.

[0024] like Figure 1 to Figure 4 As shown, the novel gas-driven pipe valve of this embodiment includes a valve housing 1, a flange base 2, a movable valve 8, an input component 6 and an output component 7.

[0025] An air inlet passage 12 is provided inside one end of the valve housing 1, and a connecting hole is provided on the side of the valve housing 1, the connecting hole is connected to the air inlet passage 12, and an L-shaped gas connector 5 is connected to the connecting hole through a thread, and the gas connector 5 can be connected to the gas source pipeline, so as to transport gas to the air inlet passage 12, and work is driven by air pressure. Optionally, the connecting hole and the gas connector 5 are connected by other methods such as glue bonding, interference fit, etc.

[0026] The retaining edge base 2 is arranged on the opposite end of the air inlet channel 12 and is located in the end of the valve housing 1. A through pin hole 3 is provided on the side of the valve housing 1 and the retaining edge base 2. A pin 4 is provided on the pin hole 3. The retaining edge base 2 and the valve housing 1 are connected as a whole by the pin 4.

[0027] The movable valve 8 includes a piston portion 81 and an insert portion 82, wherein the piston portion 81 is slidably disposed in the valve housing 1, the space at the upper end of the piston portion 81 is connected to the air inlet passage 12, a return spring 9 is arranged between the piston portion 81 and the rib base 2, a slot 10 is axially arranged in the middle portion of the rib base 2, the insert portion 82 is slidably inserted into the slot 10, a through hole 11 is arranged on the insert portion 82, the thickness of the insert portion 82 is 1 cm to 3 cm, the width of the slot 10 is equivalent to the insert portion 82, which is conducive to improving air tightness.

[0028] In order to improve the sealing performance of the piston part 81 , an annular sealing groove 13 is provided on the side wall of the piston part 81 , and a sealing ring 14 is provided on the sealing groove 13 .

[0029] The input assembly 6 and the output assembly 7 are coaxially arranged, respectively connected to the two sides of the flange base 2, and both the input assembly 6 and the output assembly 7 are connected to the slot 10. Specifically, the input assembly 6 and the output assembly 7 have the same structure, and both include a connecting sleeve 61, a soft plug 62 and a conduit 63. One end of the connecting sleeve 61 is connected to the flange base 2, such as a side hole formed on the side of the flange base 2 and the valve housing 1, and the connecting sleeve 61 is fixed on the side hole by interference fit. The soft plug 62 is made of soft elastic material, and the soft plug 62 is coaxially arranged inside the connecting sleeve 61, and one end of the conduit 63 is inserted into the soft plug 62.

[0030] In order to stably fix the catheter 63, a notch 15 is provided inside the soft plug 62, and a protrusion 16 is provided outside the end of the catheter 63. Through the cooperation between the protrusion 16 and the notch 15, the catheter 63 is not easy to separate from the soft plug 62 when conveying fluid.

[0031] One end of the soft plug 62 extends into the slot 10, and the side surface of the insert portion 82 contacts the end of the soft plug 62, which can improve the sealing between the input component 6, the output component 7 and the insert portion 82. When the insert portion 82 is inserted into the slot 10, the fluid transported by the input component 6 and the output component 7 only contacts the side surface of the insert portion 82, thereby improving the stability of the interception.

[0032] Its working principle is: when gas is introduced into the air inlet channel 12, the movable valve 8 moves downward, the return spring 9 is compressed, and the insert portion 82 slides in the slot 10 to change the position of the through hole 11 until the through hole 11 is completely misaligned with the input component 6 and the output component 7, and the input component 6 and the output component 7 are cut off, and the fluid cannot pass through. When the air inlet channel 12 is cut off, the air pressure in the air inlet channel 12 decreases, and the return spring 9 pushes the movable valve 8 to move upward, so that the insert portion 82 moves in the slot 10, and the through hole 11 is aligned with the conduit 63 in the input component 6 and the output component 7, so that the fluid can pass through.

[0033] The above embodiments only express the specific implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A new type of air-driven pipe valve, characterized in that: include: A valve housing, one end of which is provided with an air inlet passage; A rib base, which is connected to the valve housing and is disposed on an end opposite to the air inlet passage, and a slot is axially disposed in the middle of the rib base; A movable valve, the movable valve is slidably disposed in the valve housing, the movable valve comprises an inserting piece extending into the slot, and the inserting piece is provided with a through hole; An input component and an output component are coaxially arranged and respectively connected to two sides of the retaining edge base, and both the input component and the output component are connected to the slot.

2. The novel gas-driven pipe valve according to claim 1 is characterized in that: The input assembly and the output assembly both include a connecting sleeve, a soft plug and a catheter. One end of the connecting sleeve is connected to the retaining edge base. The soft plug is made of soft elastic material. The soft plug is coaxially arranged inside the connecting sleeve. One end of the catheter is inserted into the soft plug.

3. The novel gas-driven pipe valve according to claim 2 is characterized in that: A notch is arranged inside the soft plug, and a protrusion is arranged outside the end of the catheter, and the protrusion and the notch are used to fix the catheter and the soft plug.

4. The novel gas-driven pipe valve according to claim 2 is characterized in that: One end of the soft plug extends into the slot, and the side surface of the inserting piece contacts the end of the soft plug.

5. The novel gas-driven pipe valve according to claim 1 is characterized in that: The movable valve comprises a piston part, the piston part is slidably arranged in the valve housing, the space at the upper end of the piston part is communicated with the air inlet passage, and a return spring is arranged between the piston part and the retaining edge base.

6. The novel gas-driven pipe valve according to claim 5 is characterized in that: An annular sealing groove is arranged on the side wall of the piston part, and a sealing ring is arranged on the sealing groove.

7. The novel gas-driven pipe valve according to claim 1 is characterized in that: The air inlet passage is provided with an air joint for connecting to an air source pipeline, and the air joint is communicated with the air inlet passage.

8. The novel gas-driven pipe valve according to claim 7 is characterized in that: The gas joint is in an L-shape, a connecting hole communicating with an air inlet passage is provided on a side surface of the valve housing, and one end of the gas joint is fixedly connected to the connecting hole.

9. The novel gas-driven pipe valve according to claim 8 is characterized in that: The gas joint is fixed to the connecting hole via threaded connection.

10. The novel gas driven pipe valve according to claim 1, characterized in that: The retaining edge base is arranged in the end of the valve housing, and the side surfaces of the valve housing and the retaining edge base are provided with through pin holes, and the pin holes are provided with pins.

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