Deflation valve, deflation control device for dredger and dredger

Abstract

The utility model belongs to the technical field of dredgers, and particularly relates to a deflation valve, a deflation control device for a dredger and the dredger. Comprising a deflation mounting seat which comprises a deflation cavity and a deflation port; the valve body is arranged in the deflation cavity and is provided with a valve cavity; the valve element is provided with a guide rod part extending into the valve cavity and a valve element sealing part arranged in the deflation cavity, and at least one vent groove allowing gas to pass through is formed in the periphery of the guide rod part or the inner wall of the valve cavity; the sealing piece is installed on the valve element sealing part or the end face of the valve body, and when the pressure of the deflation cavity is high, the valve element sealing part and the end face of the valve body form face sealing through the sealing piece, so that the vent groove is closed; when deflation is needed, the valve element is pushed inwards under the action of external force, and gas in the deflation cavity is exhausted through the vent groove. According to the utility model, the deflation mounting seat, the valve body and the valve core are arranged, the valve core and the valve body are fixed on the deflation mounting seat, and the valve body and the deflation mounting seat are in hard connection, so that the connection firmness is higher, and the use effect of the deflation valve is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of dredges, in particular to an air release valve, an air release control device for the dredge and the dredge. Background Art

[0002] Clogged drains and toilets are common everyday problems, and plumbers can help solve this problem. Existing plumbers, such as the pneumatic toilet dredge proposed in prior patent CN218881073U, typically pump air into a gas storage device to generate energy. The gas is then released from a plug mounted at the outlet. This powerful gas flow unclogs the clogged drain or toilet.

[0003] Existing plumbing devices typically include a deflation control device to release the gas stored in the gas storage device, thereby achieving dredging. However, current deflation control devices typically utilize a port on the mounting base of the gas storage device that leads to the interior of the gas cylinder, a hose connected to the port, and a switch at the end of the hose to control the gas release. This structure, due to the flexible connection between the hose and the port, can easily cause the hose to fall off after prolonged use, rendering the plumbing device inoperable. Summary of the Invention

[0004] The purpose of the utility model is to provide an air release valve, an air release control device for a dredge and a dredge which have a stable structure and can realize rapid air release.

[0005] The purpose of this utility model is achieved in this way:

[0006] The utility model proposes an air bleed valve of a dredge, which has the following characteristics: an air bleed mounting seat, which contains an air bleed cavity and an air bleed port; a valve body, which is arranged in the air bleed cavity and has a valve cavity; a valve core, which has a guide rod portion extending into the valve cavity and a valve core sealing portion arranged in the air bleed cavity, and the outer periphery of the guide rod portion or the inner wall of the valve cavity is provided with at least one ventilation groove for gas to pass through; and a sealing member, which is installed on the valve core sealing portion or the end face of the valve body, and when the air bleed cavity is under high pressure, the valve core sealing portion forms a surface seal with the end face of the valve body through the sealing member, thereby closing the ventilation groove; when air bleed is required, the valve core is pushed inward under the action of an external force, and the gas in the air bleed cavity is discharged through the ventilation groove.

[0007] The deflation valve provided in the present invention may also have the following characteristics: a sealing member is mounted on the valve core sealing portion, and the outer diameters of the sealing member and the valve core sealing portion are smaller than the inner diameter of the deflation cavity.

[0008] The air release valve provided by the present invention may further have the following feature: a plurality of convex strips are formed on the circumferential protrusion of the guide rod portion, and a ventilation groove is formed between two adjacent convex strips.

[0009] The air release valve proposed in the present invention may also have the following features: an elastic member and a valve stem are provided in the valve cavity, the elastic member is provided between the valve stem and the inner wall of the valve body, and the valve stem is sleeved on the guide rod portion.

[0010] The air release valve provided in the present invention may also have the following feature: a sealing ring is provided between the valve body and the air release mounting seat.

[0011] The air release valve proposed in the present invention may also have the following features: an outer rib is extended from the outer end of the valve body, and an inner rib is extended inward from the inner end of the valve body to form a valve core installation opening for installing the valve core.

[0012] The present utility model also proposes an air release control device for a clearing device, which is used to control the air release of an air storage device and has the following characteristics: a main mounting seat, which is used to install the air cylinder of the air storage device and has an air inlet chamber connected to the air cylinder; a piston, which is movably arranged in the air inlet chamber and is used to seal the air outlet pipe of the air storage device, and an air release valve, which is used to control the discharge of high-pressure gas from the air inlet chamber; wherein the air release valve is the air release valve as described above, the air release mounting seat is arranged on the main mounting seat, and the air release chamber is connected to the air inlet chamber.

[0013] The deflation control device for the dredge proposed in the present invention has the following characteristics: it also includes: a deflation connecting rod installed on the valve stem or valve core of the deflation valve; and a deflation button installed on the outer end of the deflation connecting rod.

[0014] The deflation control device for a dredge proposed in the utility model has the following characteristics: the moving direction of the valve core and the moving direction of the deflation connecting rod are arranged obliquely, and a movable groove is provided at one end of the deflation connecting rod facing the valve stem, and the valve stem has a movable end extending into the movable groove, and the width of the movable groove is greater than the width of the movable end.

[0015] The utility model also provides a dredge having the following characteristics, including the air release control device as described above.

[0016] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0017] The venting valve of the utility model is provided with a venting mounting seat, a valve body, a valve core and a valve core. The valve body is fixed on the venting mounting seat, and a hard connection is adopted between the two. The connection is more firm, which makes the use effect of the venting valve better. In addition, when the venting chamber is under high pressure, the sealing part of the valve core can form a face seal with the end face of the valve body through the sealing member, thereby closing the venting groove for easy storage of air; when it is necessary to deflate, the valve core is pushed inward under the action of external force, so that the face seal between the valve core and the valve body can be released, thereby allowing the gas in the venting chamber to be discharged through the venting groove, realizing rapid deflation, and further improving the deflation control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the installation structure of the gas storage device of the utility model.

[0019] Figure 2 It is a cross-sectional view of the inflation and deflation device of the utility model.

[0020] Figure 3 It is a cross-sectional view of the deflation control device of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the air release mounting seat of the utility model.

[0022] Figure 5 It is a schematic diagram of the structural decomposition of the air release control device of the utility model.

[0023] Figure 6 This utility model Figure 3 A partial enlarged view of point A in the middle.

[0024] The meaning of the numbers in the figure:

[0025] Inflating device 1, main piston 10, main mounting seat 14, air inlet chamber 141, inner annular wall 142, outer annular wall 143, connecting chamber 144, deflation mounting seat 15, deflation chamber 151, deflation port 152, air storage device 2, air storage cylinder 21, air storage mounting end 211, air outlet 212, air outlet pipe 22, air outlet mounting seat 221, air outlet chamber 23, air storage chamber 24, air outlet nozzle 25, rubber ring 26, deflation control device 4, deflation button 41, deflation valve 42, deflation connecting rod 43, movable groove 431, valve body 44, sealing ring 441, valve chamber 442, valve core 45, guide rod portion 451, sealing portion 452, ventilation groove 453, sealing member 46, elastic member 47, valve stem 48, movable end 481, and extending end 482. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with specific embodiments:

[0027] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of the embodiments of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of this application. Therefore, they have no substantial technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the efficacy and purpose that can be achieved by this application, should still fall within the scope of the technical content disclosed in this application. At the same time, the terms such as "inside" and "outside" quoted in the embodiments of this specification are only for the convenience of description and are not used to limit the scope of the implementation of this application. Changes or adjustments in their relative relationships, without substantially changing the technical content, should also be regarded as the scope of the implementation of this application.

[0028] When an element is referred to as being “connected,” “disposed,” or “mounted” to another element, it may be directly connected to the other element or indirectly connected, disposed, or mounted to the other element via an intervening element.

[0029] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] This embodiment provides a flusher, in particular a flusher for unclogging toilets or sewer pipes, the flusher including at least an air pumping and deflation device and an air storage device 2, the air pumping and deflation device being installed on an air cylinder 21 of the air storage device 2, including an air pumping device 1 and an air deflation control device 4, the air storage device 2 being installed on the air pumping device 1, and having an air cylinder 21 for storing gas from the air pumping device 1, the air pumping device 1 being used to inflate the air cylinder 21, the air deflation control device 4 being used to control the air cylinder 21 of the air storage device 2 to deflate.

[0031] like Figure 1-Figure 2As shown, the inflation device 1 and deflation control device 4 are installed above the air storage device 2 of the dredge. They include a main mounting base 14, a main piston 10, and a deflation valve 42. The main mounting base 14 is used to mount the air reservoir 21 and has an air inlet chamber 141 connected to the air reservoir 21. The main mounting base 14 is provided with an inner annular wall 142 and an outer annular wall 143. The inner side of the inner annular wall 142 surrounds the air inlet chamber 141, and the main piston 10 is movably mounted within the air inlet chamber 141. The inner side of the outer annular wall 143 is provided with a mounting portion for mounting the air reservoir 21. In this embodiment, the mounting portion is internally threaded, and the air reservoir 21 is provided with a matching external thread. The air reservoir 21 and the main mounting base 14 are connected by a threaded connection. In actual use, the mounting portion can also be a snap-fit ​​structure, and a snap-fit ​​connection is adopted accordingly. The inner annular wall 142 and the outer annular wall 143 form a connecting chamber 144 connected to the interior of the air reservoir 21. The air inlet chamber 141 and the connecting chamber 144 are connected. The main piston 10 is movably disposed in the air inlet chamber 141 and is used to seal the air outlet pipe 22 of the air storage device 2. The air release valve 42 is used to control the discharge of the high-pressure gas in the air inlet chamber 141.

[0032] like Figure 1 As shown, the gas storage device 2 is mounted below the main mounting seat 14 and includes an air cylinder 21. The air cylinder 21 is a hollow cylindrical structure, with one end forming an air storage mounting end 211 mounted to the main mounting seat 14, and the other end being provided with an air outlet 212. An air outlet pipe 22 is provided in the middle portion of the interior of the air cylinder 21, and an air outlet cavity 23 connected to the outside is defined within the air outlet pipe 22. An air storage cavity 24 is formed between the air outlet pipe 22 and the inner wall of the air cylinder 21. In this embodiment, the air cylinder 21 is a steel structure, and the air cylinder 21 and the air outlet pipe 22 are provided separately. The bottom of the air outlet pipe 22 is mounted at the air outlet 212 via an air outlet mounting seat 221 and a sealing gasket. At the same time, an air outlet nozzle 25 is fixedly mounted at the air outlet 212, and the outer end of the air outlet nozzle is provided with a thread for connection to a plug device.

[0033] The outer periphery of the gas storage mounting end 211 is provided with an external thread that is compatible with the internal thread on the inner side of the outer ring wall 143 of the main mounting seat 14. The gas storage mounting end 211 is connected to the outer ring wall 143 through a thread, and a sealing ring is provided on the top of the connecting cavity 144 formed between the outer ring wall 143 and the inner ring wall 142. The top of the gas storage mounting end 211 is placed on the sealing ring, so that the main mounting seat 14 and the gas storage mounting end 211 are sealed. The air outlet pipe 22 is a through pipe with both ends open, and a rubber ring 26 is provided on the end of the air outlet pipe 22 away from the air outlet 212 (i.e., the air inlet end of the air outlet pipe 22). The rubber ring 26 is used to cooperate with the main piston 10. When inflating, the main piston 10 will move downward under the push of the gas, and directly move to the position where the bottom surface of the main piston 10 and the top of the rubber ring 26 are in contact with each other. Under the action of the gas, the main piston 10 is close to the rubber ring 26, thereby closing the air inlet end of the air outlet pipe 22, so that the gas can only enter the connecting cavity 144 and the air storage cavity 24 through the air inlet cavity 141, thereby realizing the gas storage in the air storage cavity 24.

[0034] In addition, the diameter of the side of the main piston 10 facing the rubber ring 26 (i.e., the working surface in contact with the rubber ring 26) is larger than the outer diameter of the rubber ring 26, so that during the deflation process, the main piston 10 can be dislodged by the gas accumulated in the air storage chamber 24 and pushed back into the air inlet chamber 141. Once the main piston 10 leaves the rubber ring 26, the gas accumulated in the air storage chamber 24 can be quickly discharged from the air outlet nozzle 25 along the air outlet pipe 22.

[0035] like Figure 3-Figure 6 As shown, the deflation valve 42 includes a deflation mounting base 15, a valve body 44, a valve core 45, a sealing member 46, an elastic member 47, and a valve stem 48. The valve body 44 is fixedly mounted on the deflation mounting base 15, and a sealing ring 441 is provided between the valve body 44 and the deflation cavity 151. An outer rib 443 extends from the outer end of the valve body 44 and can be retained on the outer edge of the deflation mounting base 15. An inner rib 444 extends inward from the inner end of the valve body 44 and forms a valve core mounting opening for mounting the valve core. The valve core 45 is movably mounted on the valve body 44. One end of the valve stem 48 is connected to the deflation connecting rod 43, and the other end is connected to the valve core 45. The deflation connecting rod 43 drives the valve core 45 to move along the valve body 44 through the valve stem 48. A deflation chamber 151 connected to the air inlet chamber 141 is formed in the deflation mounting seat 15, the valve body 44 is arranged in the deflation chamber 151, and a deflation port 152 connecting the deflation chamber 151 with the air inlet chamber 141 is opened on the deflation mounting seat 15. When the deflation control device 4 is opened, the air inlet chamber 141 is connected to the outside atmosphere, and part of the gas in the air inlet chamber 141 can enter the deflation chamber 151 through the deflation port 152 and be discharged to the outside through the deflation control device 4.

[0036] The deflation control device 4 also has a deflation button 41 and a deflation connecting rod 43. The deflation button 41 is used to control the opening of the deflation valve 42. The deflation connecting rod 43 is installed between the deflation button 41 and the deflation valve 42, and is used to link the deflation button 41 and the deflation valve 42, that is, by sliding the deflation button 41, the deflation connecting rod 43 opens the deflation valve 42 for deflation.

[0037] Specifically, a valve cavity 442 is provided in the valve body 44, the valve stem 48 is bent, and an insertion end 482 is formed at the lower end to be inserted into the valve cavity 442. The outer periphery of the insertion end 482 protrudes outward to form a plurality of ridges, and a ventilation groove 483 is formed between adjacent ridges. The valve core 45 has a guide rod portion 451 and a sealing portion 452. One end of the guide rod portion 451 extends into the valve cavity 442 and is embedded in the insertion end 482 (that is, the insertion end 482 of the valve stem 48 is sleeved on the guide rod portion 451), and the other end extends out of the valve cavity 442 and forms a valve core. The sealing portion 452 is provided with a sealing member 46 on the side of the valve core sealing portion 452 facing the guide rod portion 451, which is used to form an end-face seal with the end face of the valve body 44. The elastic member 47 is a spring, installed between the valve stem 48 and the inner wall of the valve body 44, and is positioned between the valve core 45 and the valve stem 48 to act on the valve stem 48. When the deflation valve 42 is closed, the valve core 45 is pushed into the valve cavity 442 by the action of gas. At the same time, the elastic member 47 assists in pushing the valve stem 48 and the deflation connecting rod 43, thereby resetting the deflation button 41. The outer periphery of the guide rod portion 451 is formed with a plurality of outwardly protruding ridges. At least one vent groove 453 is formed between adjacent ridges for gas to pass through. The sealing member 46 forms a seal with the end face of the valve body 44 as it moves with the valve core 45, thereby sealing the vent groove 453. In practice, the elastic member 47 can be omitted, and the deflation button 41 can be manually reset by sliding.

[0038] When the vent chamber 151 is under high pressure, the valve core sealing portion 452 forms a surface seal with the end face of the valve body 44 through the sealing member 46, thereby closing the vent groove 453. When deflation is required, the valve core 45 is pushed inward under the action of an external force, and the surface seal between the valve core sealing portion 452 and the end face of the valve body 44 is released, and the gas in the vent chamber 151 can be discharged through the vent groove 453. Alternatively, the sealing member 46 can be directly installed on the end face of the valve body, and the vent groove is opened on the inner wall of the valve chamber 442, which can also achieve the above-mentioned sealing and deflation functions. In order to allow gas to enter the vent groove 453 from the end where the valve core sealing portion 452 is located, the outer diameter of the sealing member 26 and the valve core sealing portion 452 is smaller than the inner diameter of the vent chamber 151, that is, a gap is formed between the outer periphery of the sealing member 26 and the valve core sealing portion 452 and the inner wall of the vent chamber 141.

[0039] In this embodiment, the axis of the deflation chamber 151 is inclined to the axis of the air inlet chamber 141 (air storage chamber 24), and the deflation connecting rod 43 is arranged vertically. Therefore, the moving direction of the valve core 45 and the moving direction of the deflation connecting rod 43 are inclined. In the process of pushing the valve stem 48 to move, the deflation connecting rod 43 will not only move downward, but also move laterally. Therefore, a movable groove 431 is provided at one end of the deflation connecting rod 43 facing the valve stem 48. The valve stem 48 has a movable end 481 extending into the movable groove, and the groove width of the movable groove 431 is greater than the width of the movable end 481, so that the valve stem 48 can move laterally in the movable groove 431. The setting of the movable groove 431 forms a guide for the lateral movement of the valve stem 48 on the one hand, and on the other hand, it can also prevent the valve stem 48 from separating from the deflation connecting rod 43.

[0040] like Figure 6 As shown, when the air pressure in the air storage chamber 24 reaches a predetermined value, the user can slide the deflation button 41 downward, and the deflation connecting rod 43 will slide down, and drive the valve stem 48 to push the valve core 45 to the lower right (as shown in FIG. Figure 6 The air in the air inlet chamber 141 is moved in the direction shown in the figure. At this time, the seal 46 leaves the end face of the valve body 44 to form a gap. The gas in the air inlet chamber 141 can enter the air release chamber 151 through the air release port 152, and then be discharged to the outside along the gap between the seal 46 and the valve body 44, the gap between the valve core 45 and the valve body 44 (the air vent groove 453), and the gap between the valve stem 48 and the valve body 44 (the air vent groove 483), so that the air inlet chamber 141 forms a low pressure. Subsequently, the main piston 10 is pushed toward the air inlet chamber 141 by the gas in the air storage chamber, and the air outlet pipe 22 is opened. The high-pressure gas in the air storage chamber 24 is instantly discharged from the air outlet pipe 22, thereby achieving high-pressure clearing.

[0041] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. Air release valve, characterized in that, include: A vent mounting seat, comprising a vent cavity and a vent port; a valve body, disposed in the degassing cavity and having a valve cavity; The valve core has a guide rod portion extending into the valve cavity and a valve core sealing portion arranged in the degassing cavity, and at least one vent groove for gas to pass through is provided on the outer periphery of the guide rod portion or the inner wall of the valve cavity; as well as A sealing member is mounted on the valve core sealing portion or the end surface of the valve body. When the air release cavity is under high pressure, the valve core sealing portion forms a surface seal with the end surface of the valve body through the sealing member, thereby closing the vent groove; When deflation is required, the valve core is pushed inwards under the action of external force, and the gas in the deflation cavity is discharged through the vent groove.

2. The air release valve according to claim 1, characterized in that: The sealing member is mounted on the valve core sealing portion, and outer diameters of the sealing member and the valve core sealing portion are smaller than an inner diameter of the degassing cavity.

3. The air release valve according to claim 1, characterized in that: The guide rod portion is circumferentially raised to form a plurality of convex strips, and the ventilation groove is formed between two adjacent convex strips.

4. The air release valve according to claim 1, characterized in that: An elastic member and a valve stem are provided in the valve cavity. The elastic member is provided between the valve stem and the inner wall of the valve body. The valve stem is sleeved on the guide rod portion.

5. The air release valve according to any one of claims 1 to 4, characterized in that: A sealing ring is provided between the valve body and the air release mounting seat.

6. The air release valve according to claim 5, characterized in that: An outer rib is extended from the outer end of the valve body, and an inner rib is extended inward from the inner end of the valve body to form a valve core installation opening for installing the valve core.

7. A deflation control device for a dredge, used to control the deflation of an air storage device, characterized in that: include: A main mounting seat, used for mounting the gas cylinder of the gas storage device, and having an air inlet cavity connected to the gas cylinder; a piston movably disposed in the air inlet cavity and used to seal the air outlet pipe of the air storage device, and The air release valve is used to control the discharge of high-pressure gas from the air intake chamber; Wherein, the air release valve is the air release valve according to any one of claims 1 to 6, The deflation mounting seat is arranged on the main mounting seat, and the deflation cavity is communicated with the air inlet cavity.

8. The air release control device for a dredge according to claim 7, Its characteristics are: in, Also includes: A deflation connecting rod, mounted on the valve stem or valve core of the deflation valve; as well as The deflation button is installed on the outer end of the deflation connecting rod.

9. The air release control device for a dredge according to claim 8, characterized in that: The moving direction of the valve core and the moving direction of the deflation connecting rod are arranged obliquely. A movable groove is formed on one end of the deflation connecting rod facing the valve stem. The valve stem has a movable end extending into the movable groove. The width of the movable groove is greater than the width of the movable end.

10. A dredge, characterized in that: Comprising the deflation control device according to any one of claims 7 to 9.

Images