A discharge valve for a pneumatic collection system

Abstract

The present invention relates to the technical field of control valves, and in particular to a discharge valve for a pneumatic collection system, comprising a mounting valve body fixed on a connecting pipe, a valve cavity formed inside the mounting valve body; a first connecting port and a second connecting port are respectively formed at the upper and lower ends of the mounting valve body close to the connecting pipe, a valve core block is slidingly arranged inside the valve cavity in a horizontal direction, a driving component for driving the valve core block to move in a horizontal direction is arranged outside the mounting valve body, the driving component controls the valve core block to move in a horizontal direction to cover the first connecting port and the second connecting port, or to move to one side of the first connecting port and the second connecting port; a sealing mechanism for sealing the first connecting port and the second connecting port on both sides of the valve core block is arranged inside the valve core block. During the working process, the sealing performance at the position of the connecting pipe can be better guaranteed, the strength of the negative pressure in the pneumatic recovery system can be improved, and the recovery efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of control valves, and in particular to a discharge valve used in a pneumatic collection system. Background Art

[0002] There are a lot of food waste in communities, hotels, commercial complexes, restaurants, etc. After garbage classification, pneumatic collection systems are generally used to collect food waste.

[0003] The pneumatic collection system refers to the pneumatic pipeline collection system for domestic waste, which refers to the process of sending domestic waste to the central waste collection station through a pre-laid pipeline system using negative pressure technology, and then transporting it to the waste disposal site after compression.

[0004] A food waste inlet is provided at the food waste feeding end. The lower side of the food waste inlet is connected to the pneumatic collection system through a connecting pipe, and the food waste is transported through the connecting pipe. A discharge valve is provided on the connecting pipe at the lower side of the food waste inlet. The discharge valve controls the opening or closing of the connecting pipe. When it is opened, the food waste at the food waste inlet can be sucked away by the negative pressure.

[0005] Because there are often multiple food waste delivery ports for recycling food waste, when food waste is delivered to a certain delivery port, the discharge valve at that delivery port is opened, while other locations remain closed. During negative pressure suction, although the discharge valve remains closed, there is air leakage, resulting in relatively low negative pressure and poor negative pressure suction effect. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides a discharge valve for a pneumatic collection system, which can better ensure the sealing performance at the connecting pipe position, improve the strength of the negative pressure in the pneumatic recovery system, and thus improve the recovery efficiency.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned objectives, an embodiment of the present application provides a discharge valve for a pneumatic collection system, including an installation valve body fixed on a connecting pipe, a valve cavity is formed inside the installation valve body; the installation valve body is respectively formed with a first connecting port and a second connecting port at the upper and lower ends close to the connecting pipe, the first connecting port and the second connecting port are respectively connected to the connecting pipes on the upper and lower sides; a valve core block is slidingly arranged in a horizontal direction on the inner side of the valve cavity, a driving component for driving the valve core block to move in a horizontal direction is arranged on the outer side of the installation valve body, the driving component controls the valve core block to move in a horizontal direction to cover the first connecting port and the second connecting port, or to move to one side of the first connecting port and the second connecting port; a sealing mechanism is arranged on the inner side of the valve core block for sealing the first connecting port and the second connecting port on both sides of the valve core block.

[0010] Preferably, the first communicating port and the second communicating port are rectangular ports, and a prism-shaped wall is formed at a position of the mounting valve body close to the first communicating port and the second communicating port; an installation cavity is formed on the inner side of the valve core block, and the sealing mechanism is arranged in the installation cavity and abuts against the prism-shaped wall.

[0011] Preferably, the driving assembly includes a control cylinder fixed to one side of the mounting valve body, the piston end of the control cylinder passes through the mounting valve body and is located in the valve cavity, the piston end of the control cylinder is fixedly connected to the valve core block, and horizontal guide grooves are respectively provided on both side edges of the valve core block along the sliding direction, and a guide strip is fixedly installed on the side wall of the mounting valve body along the sliding direction of the valve core block, the guide strip is embedded in the inner side of the guide groove and is slidably connected to the guide groove.

[0012] Preferably, the valve core block is provided with rectangular sealing openings on the upper and lower sides close to the first connecting port and the second connecting port respectively; the sealing opening is connected to the installation cavity; the areas of the first connecting port and the second connecting port are both smaller than the sealing opening; the sealing mechanism comprises a first baffle and a second baffle horizontally arranged on the inner side of the installation cavity, and the first baffle and the second baffle are vertically spaced apart; the first baffle is located on the side close to the first connecting port, and the second baffle is located on the side close to the second connecting port; a transmission assembly is provided between the first baffle and the second baffle for controlling the first baffle and the second baffle to move away from or towards each other; a prism-shaped sealing block is fixedly installed on the side opposite to each other of the first baffle and the second baffle; when the transmission assembly controls the first baffle and the second baffle to move away from each other, the sealing block can pass through the sealing opening and abut against the prism-shaped wall for sealing.

[0013] Preferably, an elastic rubber membrane is fixedly mounted on the valve core block and located outside the sealing port; when the sealing block moves outward, the rubber membrane is lifted up, and the rubber membrane abuts against the prism-shaped wall to form a seal.

[0014] Preferably, the transmission assembly includes a first positioning cylinder fixedly installed on one side wall of the installation cavity, a first positioning block fixedly installed on the piston end of the first positioning cylinder, a first positioning block being rotatably connected to a first support rod and a second support rod on the first positioning block along a horizontal axis, and the horizontal axis is parallel to the first baffle and the second baffle; a side of the first support rod and the second support rod away from the first positioning cylinder is rotatably connected to an "X"-shaped shear frame, and two ends of the shear frame close to the first positioning cylinder are rotatably connected to the first support rod and the second support rod respectively; a second positioning cylinder is fixedly installed on the valve core block and located at one end of the installation cavity away from the first positioning cylinder, and a second positioning block is fixedly installed on the piston end of the second positioning cylinder; a third support rod and a fourth support rod are rotatably installed on the second positioning block, and one end of the third support rod and the fourth support rod away from the second positioning block is rotatably connected to the two ends of the shear frame close to the second positioning cylinder respectively; a first fixed block is rotatably installed on the side of the shear frame close to the first baffle, and the first fixed block is fixedly connected to the first baffle,

[0015] The shear frame is rotatably mounted with a second fixing block on one side close to the second baffle, the second fixing block is fixedly connected to the second baffle, and the first positioning cylinder and the second positioning cylinder are synchronously extended or shortened.

[0016] Preferably, two groups of the transmission components are spaced apart between the first baffle plate and the second baffle plate.

[0017] (III) Beneficial effects

[0018] The present invention provides a discharge valve for a pneumatic collection system, which is provided with a valve core block in a mounting valve body, and the valve core block is controlled to move by a driving assembly provided on the outside, and the first baffle plate and the second baffle plate are driven to move by a transmission assembly provided on the inside of the valve core block, and then, during the movement, the sealing block can be controlled to seal the first connecting port and the second connecting port tightly. When the delivery port is used to process food waste, the discharge valve can better ensure the sealing performance at the connecting pipe position, improve the strength of the negative pressure in the pneumatic recovery system, and thus improve the recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a discharge valve for a pneumatic collection system of the present invention;

[0020] Figure 2 A cross-sectional view of a discharge valve for a pneumatic collection system according to the present invention;

[0021] Figure 3 A state diagram of a discharge valve for a pneumatic collection system of the present invention in which a protruding valve core block opens a first communication port;

[0022] Figure 4 A cross-sectional view of a protruding valve core block in a discharge valve for a pneumatic collection system of the present invention;

[0023] Figure 5 It is a cross-sectional view of a protruding transmission assembly in a discharge valve for a pneumatic collection system according to the present invention.

[0024] Markings in the accompanying drawings:

[0025] 100, install the valve body; 110, valve cavity; 120, first connecting port; 130, second connecting port; 140, prism-shaped wall; 200, valve core block; 210, installation cavity; 220, guide groove; 230, sealing port; 300, drive assembly; 310, control cylinder; 320, guide strip; 400, sealing mechanism; 410, first baffle plate; 420, second baffle plate; 430, transmission assembly; 431, first positioning cylinder; 4311, first positioning block; 432, first support rod; 433, second support rod; 434, shear frame; 435, second positioning cylinder; 4351, second positioning block; 436, third support rod; 437, fourth support rod; 438, first fixing block; 439, second fixing block; 440, sealing block; 450, rubber membrane; 500, connecting pipe. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] Example

[0028] The present invention provides a discharge valve for a pneumatic collection system, see Figure 1-Figure 5 , including an installation valve body 100 fixed on the connecting pipe 500, wherein the installation valve body 100 is located on the vertical pipe section of the connecting pipe 500.

[0029] Specifically, a valve cavity 110 is formed on the inner side of the installation valve body 100; a first connecting port 120 and a second connecting port 130 are respectively formed at the upper and lower ends of the installation valve body 100 near the connecting pipe 500, and the first connecting port 120 and the second connecting port 130 are respectively connected to the connecting pipes 500 on the upper and lower sides; specifically, the connection method can be sealed by a flange.

[0030] A valve core block 200 is horizontally slidably arranged on the inner side of the valve cavity 110, and a driving assembly 300 for driving the valve core block 200 to move horizontally is arranged on the outer side of the valve body 100. The driving assembly 300 controls the valve core block 200 to move horizontally to cover the first connecting port 120 and the second connecting port 130, or to move to one side of the first connecting port 120 and the second connecting port 130; a sealing mechanism 400 is arranged on the inner side of the valve core block 200 for sealing the first connecting port 120 and the second connecting port 130 on both sides of the valve core block 200.

[0031] When in use, when it is necessary to process kitchen waste through the delivery port, the first communication port 120 and the second communication port 130 are opened by controlling the driving component 300, and then the kitchen waste to be processed can be sucked away by negative pressure. When the processing is completed, the first communication port 120 and the second communication port 130 are sealed by the driving component 300 and the sealing mechanism 400 to ensure the sealing of the discharge valve position.

[0032] The first connecting port 120 and the second connecting port 130 are rectangular ports, and a prism-shaped wall 140 is formed at a position where the valve body 100 is installed near the first connecting port 120 and the second connecting port 130; by setting the prism-shaped wall 140, when negative pressure is provided, there will be no problem of residual food waste when passing through the valve cavity 110.

[0033] An installation cavity 210 is formed inside the valve core block 200 . The sealing mechanism 400 is disposed in the installation cavity 210 and abuts against the prism-shaped wall 140 .

[0034] The driving assembly 300 includes a control cylinder 310 fixed to one side of the mounting valve body 100, the piston end of the control cylinder 310 passes through the mounting valve body 100 and is located in the valve cavity 110, the piston end of the control cylinder 310 is fixedly connected to the valve core block 200, and the control valve core block 200 moves in a horizontal direction, and when moving, it can completely block the first connecting port 120 and the second connecting port 130, or completely offset the first connecting port 120 and the second connecting port 130.

[0035] Horizontal guide grooves 220 are respectively provided on both sides of the valve core block 200 along the sliding direction. A guide bar 320 is fixedly installed on the side wall of the valve body 100 along the sliding direction of the valve core block 200. The guide bar 320 is embedded in the inner side of the guide groove 220 and is slidably connected to the guide groove 220.

[0036] The valve core block 200 has rectangular sealing openings 230 on the upper and lower sides near the first and second communication openings 120 and 130, respectively; the sealing openings 230 are connected to the installation cavity 210. The areas of the first and second communication openings 120 and 130 are both smaller than the sealing openings 230.

[0037] The sealing mechanism 400 includes a first baffle 410 and a second baffle 420 horizontally arranged inside the installation cavity 210, and the first baffle 410 and the second baffle 420 are vertically spaced apart; the first baffle 410 is located on a side close to the first connecting port 120, and the second baffle 420 is located on a side close to the second connecting port 130.

[0038] A transmission assembly 430 is provided between the first baffle plate 410 and the second baffle plate 420 for controlling the first baffle plate 410 and the second baffle plate 420 to move away from each other or towards each other; a prism-shaped sealing block 440 is fixedly installed on the side of the first baffle plate 410 and the second baffle plate 420 facing away from each other; when the transmission assembly 430 controls the first baffle plate 410 and the second baffle plate 420 to move away from each other, the sealing block 440 can pass through the sealing opening 230 and abut against the prism-shaped wall 140 for sealing.

[0039] An elastic rubber membrane 450 is fixedly mounted on the valve core block 200 and outside the sealing opening 230 ; the rubber membrane 450 closes the sealing opening 230 , and when the sealing block 440 moves outward, the rubber membrane 450 is lifted up and abuts against the prism-shaped wall 140 to form a seal.

[0040] The transmission assembly 430 includes a first positioning cylinder 431 fixedly installed on a side wall of the installation cavity 210, and a first positioning block 4311 is fixedly installed on the piston end of the first positioning cylinder 431. The first positioning block 4311 is rotatably connected to a first support rod 432 and a second support rod 433 along a horizontal axis, and the horizontal axis is parallel to the first baffle 410 and the second baffle 420.

[0041] The first support rod 432 and the second support rod 433 are rotatably connected to the side away from the first positioning cylinder 431 with a shear frame 434 in an "X" shape, and the two ends of the shear frame 434 close to the first positioning cylinder 431 are respectively rotatably connected to the first support rod 432 and the second support rod 433. Specifically, the shear frame 434 includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are cross-rotatably connected.

[0042] A second positioning cylinder 435 is fixedly installed on the valve core block 200 and located at one end of the installation cavity 210 away from the first positioning cylinder 431, and a second positioning block 4351 is fixedly installed on the piston end of the second positioning cylinder 435; a third support rod 436 and a fourth support rod 437 are rotatably installed on the second positioning block 4351, and the third support rod 436 and the fourth support rod 437 are rotatably connected to the shear frame 434 at one end away from the second positioning block 4351 at both ends close to the second positioning cylinder 435.

[0043] The shear frame 434 is located on a side close to the first baffle plate 410 and is rotatably installed with a first fixed block 438, and the first fixed block 438 is fixedly connected to the first baffle plate 410. The shear frame 434 is located on a side close to the second baffle plate 420 and is rotatably installed with a second fixed block 439, and the second fixed block 439 is fixedly connected to the second baffle plate 420. The first positioning cylinder 431 and the second positioning cylinder 435 extend or shorten synchronously.

[0044] When the piston ends of the first positioning cylinder 431 and the second positioning cylinder 435 extend or shorten synchronously, the shear frame 434 is driven to rotate. When the shear frame 434 rotates, the first baffle plate 410 and the second baffle plate 420 on the upper and lower sides are controlled to move linearly in the vertical direction.

[0045] Two groups of transmission components 430 are arranged at intervals between the first baffle plate 410 and the second baffle plate 420. By providing two groups of transmission components 430, the first baffle plate 410 and the second baffle plate 420 can be better controlled, so that the transmission is more stable.

[0046] It should be noted that the size of the shear frame 434 needs to meet the following adjustment. When the positioning cylinder is extended to the set position, the shear frame 434 can control the first baffle 410 and the second baffle 420 on both sides to move to a relatively distant side, and after moving, it can ensure that the sealing block 440 is tightly sealed against the prism-shaped wall 140.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0049] The above-mentioned embodiments only express the implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A discharge valve for a pneumatic collection system, characterized in that: It comprises a mounting valve body (100) fixed on a connecting pipe (500), wherein a valve cavity (110) is formed inside the mounting valve body (100); The mounting valve body (100) is respectively formed with a first communication port (120) and a second communication port (130) at the upper and lower ends close to the communication pipe (500); the first communication port (120) and the second communication port (130) are respectively communicated with the communication pipes (500) at the upper and lower sides; A valve core block (200) is slidably arranged in a horizontal direction inside the valve cavity (110), and a driving component (300) is arranged outside the mounting valve body (100) to drive the valve core block (200) to move in a horizontal direction, wherein the driving component (300) controls the valve core block (200) to move in a horizontal direction to cover the first communication port (120) and the second communication port (130), or to move to one side of the first communication port (120) and the second communication port (130); A sealing mechanism (400) is provided inside the valve core block (200) for sealing a first communication port (120) and a second communication port (130) on both sides of the valve core block (200); The first communication port (120) and the second communication port (130) are rectangular ports, and a prism-shaped wall (140) is formed at a position of the mounting valve body (100) close to the first communication port (120) and the second communication port (130); An installation cavity (210) is formed inside the valve core block (200), and the sealing mechanism (400) is arranged in the installation cavity (210) and abuts against the prism-shaped wall (140); The drive assembly (300) comprises a control cylinder (310) fixed to one side of the mounting valve body (100), a piston end of the control cylinder (310) passing through the mounting valve body (100) and located in the valve cavity (110), and the piston end of the control cylinder (310) is fixedly connected to the valve core block (200); The valve core block (200) is provided with horizontal guide grooves (220) on both sides along the sliding direction, and a guide strip (320) is fixedly installed on the side wall of the mounting valve body (100) along the sliding direction of the valve core block (200), and the guide strip (320) is embedded in the inner side of the guide groove (220) and is slidably connected to the guide groove (220); The valve core block (200) is provided with rectangular sealing openings (230) on the upper and lower sides close to the first communication opening (120) and the second communication opening (130); the sealing openings (230) are connected to the installation cavity (210); The areas of the first communication opening (120) and the second communication opening (130) are both smaller than the sealing opening (230); The sealing mechanism (400) comprises a first baffle (410) and a second baffle (420) which are horizontally arranged inside the installation cavity (210), and the first baffle (410) and the second baffle (420) are vertically spaced apart. The first baffle (410) is located on a side close to the first communication port (120), and the second baffle (420) is located on a side close to the second communication port (130); A transmission assembly (430) is provided between the first baffle plate (410) and the second baffle plate (420) for controlling the first baffle plate (410) and the second baffle plate (420) to move away from each other or toward each other; A prism-shaped sealing block (440) is fixedly mounted on the side surfaces of the first baffle plate (410) and the second baffle plate (420) facing away from each other; When the transmission assembly (430) controls the first baffle plate (410) and the second baffle plate (420) to move away from each other, the sealing block (440) can pass through the sealing opening (230) and abut against the prism-shaped wall (140) for sealing; An elastic rubber membrane (450) is fixedly mounted on the valve core block (200) and located outside the sealing port (230); When the sealing block (440) moves outward, the rubber membrane (450) is lifted up, and the rubber membrane (450) abuts against the prism-shaped wall (140) to form a seal.

2. A discharge valve for a pneumatic collection system according to claim 1, characterized in that: The transmission assembly (430) comprises a first positioning cylinder (431) fixedly mounted on a side wall of the mounting cavity (210), and a first positioning block (4311) is fixedly mounted on a piston end of the first positioning cylinder (431); The first positioning block (4311) is rotatably connected to a first support rod (432) and a second support rod (433) along a horizontal axis, and the horizontal axis is parallel to the first baffle plate (410) and the second baffle plate (420); The first support rod (432) and the second support rod (433) are rotatably connected to an "X"-shaped shear frame (434) at one side away from the first positioning cylinder (431), and the two ends of the shear frame (434) close to the first positioning cylinder (431) are rotatably connected to the first support rod (432) and the second support rod (433) respectively; A second positioning cylinder (435) is fixedly mounted on the valve core block (200) and located at one end of the mounting cavity (210) away from the first positioning cylinder (431), and a second positioning block (4351) is fixedly mounted on the piston end of the second positioning cylinder (435); A third support rod (436) and a fourth support rod (437) are rotatably mounted on the second positioning block (4351); one end of the third support rod (436) and the fourth support rod (437) away from the second positioning block (4351) are rotatably connected to two ends of the shear frame (434) close to the second positioning cylinder (435); A first fixing block (438) is rotatably mounted on one side of the shear frame (434) close to the first baffle plate (410), and the first fixing block (438) is fixedly connected to the first baffle plate (410); A second fixing block (439) is rotatably mounted on one side of the shear frame (434) close to the second baffle plate (420), and the second fixing block (439) is fixedly connected to the second baffle plate (420); The first positioning cylinder (431) and the second positioning cylinder (435) are extended or shortened synchronously.

3. A discharge valve for a pneumatic collection system according to claim 1, characterized in that: Two groups of the transmission components (430) are arranged at intervals between the first baffle plate (410) and the second baffle plate (420).

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