Deflation valve, deflation control device for dredger and dredger

Abstract

The utility model belongs to the technical field of deflation valves, and particularly relates to a deflation valve, a deflation control device for a dredger and the dredger. The dredger comprises a deflation control device, and the deflation control device comprises a main mounting seat which is provided with an air inlet cavity communicated with the air reservoir; the piston is movably arranged in the air inlet cavity and is used for sealing the air outlet pipe of the air storage device; the deflation valve is used for controlling the piston of the air inlet cavity to open the air outlet pipe; the deflation valve comprises a deflation mounting seat, a deflation valve body and a deflation valve element, the deflation mounting seat comprises a deflation cavity, at least one clamping groove is formed in the side wall of the deflation cavity, clamping protrusions corresponding to the clamping grooves are arranged on the side wall of the deflation valve body, and the deflation valve body is clamped in the clamping grooves of the deflation mounting seat through the clamping protrusions. The mounting firmness of the deflation valve is higher; when the pressure of the deflation cavity is high, the deflation valve body can be effectively fixed in the deflation mounting seat, and the situations of loosening and falling off are prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of air release valve, especially point to a kind of air release control device and dredge for air release valve and dredge. BACKGROUND

[0002] People often appear in daily life sewer pipe, toilet and so on jammed phenomenon, and dredge can help people solve this trouble.The existing dredge is usually as in prior art CN218881073U proposed air pressure toilet dredge, inflator is inflated to the gas storage device by one-way valve to form high-pressure gas, air release control device is used to control high-pressure gas from the plug device of the air outlet end of gas storage device release, under the impact of powerful high-pressure gas, realize the dredging of sewer pipe or toilet.

[0003] In the above-mentioned disclosed air pressure toilet dredge, the air release valve of air release control device is often installed on the air release cavity of main mounting seat by interference fit, the air release cavity is communicated with the air inlet cavity of main piston and the gas storage cavity of gas storage device, under the high pressure of air inlet cavity and gas storage cavity, interference fit air valve body is prone to loosen, even fall off phenomenon, so that air inlet cavity and gas storage cavity leak, high-pressure gas cannot be formed in gas storage device, seriously affect the service life of product, increase the cost of after-sales maintenance. SUMMARY

[0004] The utility model aims at providing a kind of air release valve, dredge for air release control device and dredge with stable installation, reliable performance.

[0005] The utility model aims at being realized as follows:

[0006] The utility model provides an air release valve, with such characteristics, comprising: air release mounting seat, containing air release cavity and air release port;Air release valve body, with valve cavity, and being arranged in air release cavity;And air release valve core, with air release guide rod part that enters valve cavity and air release sealing part that is arranged in air release cavity, the outer periphery of air release guide rod part or the inner wall of valve cavity is equipped with at least one air passage groove for gas passing;Wherein, at least one clamping groove is formed in the side wall of air release cavity, the side wall of air release valve body is provided with the clamping protrusion corresponding with clamping groove, air release valve body is clamped in the clamping groove of air release mounting seat by clamping protrusion.

[0007] In the air release valve provided by the utility model, the installation part of air release valve body can also have the following characteristics, wherein the installation part of air release valve body is cylindrical, and air release cavity is circular hole-shaped;Clamping groove is L-shaped and has axial clamping groove part and perpendicular clamping groove part.

[0008] In the air release valve provided by the utility model, the clamping groove part can also have the following characteristics, wherein one side of clamping groove part is provided with clamping protrusion, to prevent clamping protrusion from separating from clamping groove.

[0009] In the air release valve provided by the utility model, the outer end of the air release valve body is provided with an outer stop edge, and the inner end of the air release valve body extends inwardly and is provided with an inner stop edge and a valve core mounting port for mounting the air release valve core.

[0010] In the air release valve provided by the utility model, the outer end of the air release valve body is provided with an outer stop edge, and the inner end of the air release valve body extends inwardly and is provided with an inner stop edge and a valve core mounting port for mounting the air release valve core.

[0011] In the air release valve provided by the utility model, the outer end of the air release valve body is provided with an outer stop edge, and the inner end of the air release valve body extends inwardly and is provided with an inner stop edge and a valve core mounting port for mounting the air release valve core.

[0012] In the air release valve provided by the utility model, the outer end of the air release valve body is provided with an outer stop edge, and the inner end of the air release valve body extends inwardly and is provided with an inner stop edge and a valve core mounting port for mounting the air release valve core.

[0013] An air release control device for a dredging device, used for controlling a gas storage device to release high-pressure gas, comprising: a main mounting seat, used for mounting a gas storage cylinder of the gas storage device, having a gas inlet cavity communicating with the gas storage cylinder; a piston, movably arranged in the gas inlet cavity and used for sealing a gas outlet pipe of the gas storage device; and an air release valve, used for controlling the piston of the gas inlet cavity to open the gas outlet pipe; wherein the air release valve is the air release valve described above, the air release mounting seat is arranged on the main mounting seat, and the air release cavity is in communication with the gas inlet cavity.

[0014] In the air release control device for the dredging device provided by the utility model, the air release control device further comprises: an air release connecting rod, mounted on the air release valve rod or the air release valve core of the air release valve; and an air release button, mounted on the outer end of the air release connecting rod; wherein the moving direction of the air release valve core is obliquely arranged with the moving direction of the air release connecting rod, one end of the air release connecting rod towards the air release valve rod is provided with a movable slot, the air release valve rod has a movable end extending into the movable slot, and the slot width of the movable slot is greater than the width of the movable end.

[0015] A dredging device, comprising the air release control device described above.

[0016] The utility model has the following prominent and beneficial technical effects compared with the prior art:

[0017] The utility model discloses a deflation valve, because set up the deflation mounting seat, deflation valve body and deflation valve core, deflation valve body is fixed on the deflation mounting seat, and the joint structure of the joint groove and the joint convex point between both is connected, makes the deflation valve installation firmness higher, when the deflation cavity high pressure, deflation valve body can be effectively fixed in the deflation mounting seat, prevents the situation of loosening and falling off.

[0018] In addition, when the deflation cavity high pressure, the valve core sealing portion can form the face seal with the end surface of the deflation valve body through the deflation sealing element, thereby closing the air passage groove, under the action of external force, the deflation valve core is pushed inwards, the face seal between the deflation valve core and the deflation valve body is released, thereby allowing the gas in the deflation cavity to be discharged through the air passage groove, realizing rapid deflation, and further improving the deflation control effect.

[0019] The utility model discloses a deflation valve, the installation part of deflation valve body is cylindrical, and the deflation cavity is round hole shape, the joint groove is L type and has the joint groove department of axial setting in the lead-in groove department and perpendicular to the lead-in groove department, one side of the joint groove department is provided with the joint convex point, when the installation part of deflation valve body inserts the deflation cavity, the joint convex is along the lead-in groove department and enters, rotates and enters the joint groove department, and is limited in the joint groove department by the joint convex point, realizes the stable installation of deflation valve, has the advantage that the assembly is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the dredger of the utility model.

[0021] Figure 2 It is the cross section view of the dredger of the utility model.

[0022] Figure 3 It is the cross section view of the inflation device of the utility model.

[0023] Figure 4 It is the structure exploded view of the inflation device of the utility model.

[0024] Figure 5 It is the structure schematic diagram of the deflation control device of the utility model.

[0025] Figure 6 It is the structure exploded view of the deflation valve body and the deflation mounting seat of the utility model.

[0026] Figure 7 It is the cross section view of the deflation control device installation place of the utility model.

[0027] Figure 8 It is the structure exploded view of the deflation control device of the utility model.

[0028] The meaning of the reference numeral in the drawing is shown as follows:

[0029] The inflating device 1, the air storage device 2, the pressure display device 3, the deflation control device 4, the air inlet one-way valve 5,

[0030] The main piston 10, the inflator 11, the inflating cavity 111, the inflating rod 12, the rod body 121, the inflating piston 122, the limiting block 123, the inflating sealing ring 124, the hand holding part 13, the fixed seat 131, the handle 132, the limiting hole 133, the insertion hole 134, the main mounting seat 14, the air inlet cavity 141, the inner ring wall 142, the outer ring wall 143, the connecting cavity 144, the one-way valve mounting hole 145, the deflation mounting seat 15, the deflation cavity 151, the deflation port 152, the clamping groove 153, the clamping convex point 154, the pressure mounting seat 16, the pressure cavity 161, the pressure port 162, the end cover 17, the inner ring part 171, the outer ring part 172, the through hole 173, the shell 18, the notch 181,

[0031] The air storage cylinder 21, the air storage mounting end 211, the air outlet 212, the air outlet pipe 22, the air outlet mounting seat 221, the air outlet cavity 23, the air storage cavity 24, the air outlet nozzle 25, the rubber ring 26, the air outlet pipe support frame 27, the air storage sealing ring 28,

[0032] The deflation button 41, the deflation valve 42, the deflation connecting rod 43, the movable groove 431, the deflation valve body 44, the deflation sealing ring 441, the deflation valve cavity 442, the clamping convex 443, the inner stop edge 444, the outer stop edge 445, the deflation valve core 45, the deflation guide rod part 451, the deflation sealing part 452, the air passage groove 453, the deflation sealing piece 46, the deflation elastic piece 47, the deflation valve rod 48, the movable end 481, the insertion end 482. DETAILED DESCRIPTION

[0033] The utility model will be described further in combination with specific embodiments:

[0034] It should be understood that the structure, proportion, size and the like drawn in the drawings of the embodiments of the present application are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limited conditions that the present application can be implemented, so they do not have substantial technical significance, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the present application can produce, should still fall within the scope of the technical content disclosed in the present application. At the same time, the terms such as "inner", "outer" and the like cited in the embodiments of the present application are only for the convenience of clear description, and are not used to limit the scope of the present application, the change or adjustment of the relative relationship, without substantial change of technical content, is also regarded as the scope of the present application that can be implemented.

[0035] When an element is referred to as being "connected", "coupled", "attached" or "installed" to another element, it can be directly connected, coupled, attached or installed to the other element, or can be indirectly connected, coupled, attached or installed to the other element through an intermediate element.

[0036] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0037] Embodiment 1:

[0038] The air release valve of the present embodiment is mainly applied to a dredging device, especially a dredging device for dredging a toilet or a sewer, and can also be applied to an air release device of other equipment. The present embodiment takes the dredging device as an example to specifically describe the structure and installation mode of the air release valve.

[0039] As shown in Figure 1 and Figure 2 , the dredging device at least comprises a main mounting base 14, a pumping device 1, a gas storage device 2, an air inlet one-way valve 5, a pressure display device 3 and an air release control device 4.

[0040] The main mounting base 14 is provided with a one-way valve mounting hole 145, and the air inlet one-way valve 5 is mounted in the one-way valve mounting hole 145. The pumping device 1 is provided with a pumping cavity 111, and the pumping cavity 111 is communicated with an air inlet end of the air inlet one-way valve 5. The gas storage device 2 is provided with a gas storage cavity 24, and the gas storage cavity 24 is communicated with an air outlet end of the air inlet one-way valve 5. The high-pressure gas in the pumping cavity 111 of the pumping device 1 enters the gas storage cavity 24 of the gas storage device 2 through the air inlet one-way valve 5. The main mounting base 14 is further provided with an air release mounting base 15 and a pressure mounting base 16, and the pressure display device 3 for detecting the pressure of the gas storage cavity 24 and the air release control device 4 for controlling the release of high-pressure gas of the gas storage cylinder 21 are respectively mounted.

[0041] As shown in Figure 3 , 4 , the pumping device 1 comprises a pumping cylinder 11 made of plastic, a pumping rod 12, an end cap 17, a shell 18 and a main piston 10.

[0042] The pumping cylinder 11 and the main mounting base 14 can be separately provided or integrally provided. In the present embodiment, the pumping cylinder 11, the main mounting base 14, the air release mounting base 15 and the pressure mounting base 16 are integrally formed. Compared with the mode that the pumping cylinder 11 is separately inserted into the base 14 through a sealing ring, the sealing structure at this position is reduced, the sealing performance of the product is improved, and the air leakage risk of the pumping device during pumping is reduced.

[0043] The inflator 11 is hollow and contains an inflation chamber 111. The inflation rod 12 is movably arranged in the inflation chamber 111 at one end and extends out of the inflator 11 to form a hand holding portion 13 at the other end. A main mounting base 14 is arranged at the bottom of the inflator 11 and is used to mount a gas cylinder 21. The main mounting base 14 is hollow and contains an air inlet chamber 141. The main piston 10 is movably arranged in the air inlet chamber 141. In this embodiment, the axis of the inflation chamber 111 is coaxial with the axis of the air inlet chamber 141.

[0044] The main mounting base 14 is provided with an inner ring wall 142 and an outer ring wall 143. The inner side of the inner ring wall 142 is surrounded to form the air inlet chamber 141. A one-way valve mounting hole 145 is arranged between the air inlet chamber 141 and the inflation chamber 111. The one-way valve mounting hole 145 is used to mount an air inlet one-way valve 5. The gas in the inflation chamber 141 will push the air inlet one-way valve 5 open and then enter the air inlet chamber 141 and the gas storage chamber 24. The inner side of the outer ring wall 143 is provided with a mounting portion for mounting the gas cylinder 21. In this embodiment, the mounting portion is an internal thread. The gas cylinder 21 is provided with an external thread matched with the internal thread. The gas cylinder 21 is connected with the main mounting base 14 through the thread connection. The inner ring wall 142 and the outer ring wall 143 form a connecting chamber 144 which is connected with the inside of the gas cylinder 21. The air inlet chamber 141 is connected with the connecting chamber 144. In the working process, the gas from the inflation chamber 111 enters the air inlet chamber 141 through the air inlet one-way valve 5 when the air inlet one-way valve 5 is opened. Then the gas enters the connecting chamber 144 (i.e. enters the gas storage chamber of the gas cylinder 21) through the gap between the air inlet chamber 141 and the main piston 10. In this process, the main piston 10 will move under the action of high pressure gas until it blocks the gas outlet pipe 22 in the gas cylinder 21.

[0045] In this embodiment, the air inlet chamber 141 and the gas storage chamber 24 are always connected through the gap between the air inlet chamber 141 and the main piston 10. Therefore, the gas entering the inflation chamber 141 through the air inlet one-way valve 5 will enter the air inlet chamber 141 and the gas storage chamber 24 at the same time and achieve the storage of high pressure gas. In other words, the air inlet chamber 141 can also be considered as a "gas storage chamber" for the function of gas storage.

[0046] The side wall of the inflator 11 is recessed inwardly near the end of the inflator 11 close to the air inlet cavity 141, and a cylindrical deflation mounting seat 15 is formed around the recessed end. The deflation mounting seat 15 is formed with a deflation cavity 151 which is in communication with the air inlet cavity 141. The end of the deflation control device 4 is arranged on the deflation mounting seat 15, and the deflation cavity 151 and the air inlet cavity 141 form a deflation opening 152. When the deflation control device 4 is opened, the air inlet cavity 141 is in communication with the outside air. The gas in the air inlet cavity 141 can enter the deflation cavity 151 through the deflation opening 152, and is discharged to the outside through the deflation control device 4 to form a low-pressure environment. The main piston 10 is then pushed open by the high-pressure gas in the gas storage cavity, the outlet pipe 22 is opened, and the high-pressure gas in the gas storage cavity 24 is instantaneously discharged from the outlet pipe 22 to achieve high-pressure clearing.

[0047] The pressure mounting seat 16 is formed with a pressure cavity 161, and the end of the pressure display device 3 is arranged on the pressure mounting seat 16. The pressure mounting seat 16 is provided with a pressure opening 162 which is in communication with the connecting cavity 144. The gas in the connecting cavity 144 (gas cylinder 21) can enter the pressure cavity 161 through the pressure opening 162, so that the pressure display device 3 can detect the gas pressure in the gas cylinder 21 and display the current gas pressure value. Specifically, the pressure display device 3 is arranged on the pressure mounting seat 16. The pressure display device 3 includes a pressure valve body with a transparent window and a pressure detection component arranged in the pressure valve body. The housing 18 is provided with a gap 181 for exposing the transparent window. The pressure display device 3 is arranged on the pressure mounting seat 16 and displays the pressure value through the transparent window, so that the user can view and know the gas pressure in the gas storage cavity 24 in real time. When the preset gas pressure is reached, the deflation control device can be started to deflate.

[0048] In this embodiment, the axis of the inflator cavity 111 is coaxial with the axis of the air inlet cavity 141. The pressure mounting seat 16 and the deflation mounting seat 15 are formed on the two sides of the inflator 11, respectively. The deflation control device 4 and the pressure display device 3 can be arranged on the two sides of the inflator 11, respectively.

[0049] The end cap 17 is arranged on the end of the inflator 11 away from the main mounting seat 14. The end cap 17 has an inner ring portion 171 and an outer ring portion 172. The inner side of the inner ring portion 171 is formed with a through hole 173 for the inflator rod 12 to pass through. There is a gap between the inner wall of the through hole 173 and the inflator rod 12 for gas to enter. During inflating, the outside air enters the inflator cavity 111 through the gap. The inner wall of the outer ring portion 172 is formed with a connecting portion which is connected to the inflator 11. In this embodiment, the connecting portion is an internal thread. Correspondingly, the top of the inflator 11 is formed with an external thread. The inflator 11 and the end cap 17 are connected by screwing. In actual situations, the connecting portion can also be a buckle.

[0050] The shell 18 is sleeved on the outer periphery of the inflator 11, and one end of the shell 18 abuts against the outer ring wall 143 of the main mounting seat 14, and the other end abuts against the outer ring portion 172 of the end cover 17, that is, the main mounting seat 14 and the end cover 17 clamp the shell 18 therebetween, compared with the screw fixing mode of the left and right shells in the prior art, the installation structure is greatly simplified, and the installation efficiency is improved.

[0051] The inflator rod 12 has a rod body 121 and an inflator piston 122, one end of the rod body 121 extends into the inflator cavity 111 and forms the inflator piston 122, the diameter of the inflator piston 122 is greater than that of the rod body 121 and is also greater than the inner diameter of the through hole 173 on the end cover 17, so that the end cover 17 can limit the inflator piston 122 in the inflator 11 and prevent it from falling out; the inflator seal ring 124 is further arranged between the outer circle of the inflator piston 122 and the inner wall of the inflator cavity 111. The rod body 121 is hollow, and a ventilation hole 125 is formed in the end close to the inflator piston 122 to communicate the inside of the rod body 121 with the inflator cavity 111, and the other end communicates with the outside, that is, the inside of the rod body 121 communicates with the inflator cavity 111, which makes it more labor-saving when the inflator rod 12 is pulled back and forth.

[0052] The other end of the rod body 121 extends out of the inflator 11 and is provided with a hand holding portion 13, as shown in Figure 4 The hand holding portion 13 includes a handle 132 for holding and a fixing seat 131 for fixing with the rod body 121, the handle 132 is arranged perpendicularly to the rod body 121 in a cylindrical shape, the fixing seat 131 is provided with an insertion hole 134 in the middle for inserting the end of the rod body 121 away from the inflator piston 122, and the fixing seat 131 is provided with a limiting hole 133 on the side, and the rod body 121 is provided with a limiting clamping block 123 matched with the limiting hole 133, and the limiting clamping block 123 is clamped into the limiting hole 133.

[0053] As shown in Figure 2 The gas storage device 2 is installed below the main mounting seat 14 and has a gas storage cylinder 21, the gas storage cylinder 21 is in a hollow cylindrical structure, one end forms a gas storage mounting end 211 mounted to the main mounting seat 14, the other end is provided with a gas outlet 212, the middle part of the inside of the gas storage cylinder 21 is provided with a gas outlet pipe 22, the gas outlet pipe 22 is provided with a gas outlet cavity 23 communicated to the outside, and the gas outlet pipe 22 and the inner wall of the gas storage cylinder 21 form a gas storage cavity 24. In this embodiment, the gas storage cylinder 21 is a steel structure, the gas storage cylinder 21 and the gas outlet pipe 22 are separately arranged, the bottom of the gas outlet pipe 22 is mounted at the gas outlet 212 through a gas outlet mounting seat 221 and a sealing gasket, the middle part is positioned in the gas storage cylinder 21 through a gas outlet pipe support 27, and a gas outlet nozzle 25 is fixedly installed at the gas outlet 212, the outer end of the gas outlet nozzle is provided with a threaded structure or a quick mounting structure for connecting with a plug device.

[0054] The outer periphery of the gas storage mounting end 211 is provided with external threads matched with the internal threads on the inner side of the outer ring wall 143 of the main mounting seat 14, and the gas storage mounting end 211 is connected to the outer ring wall 143 through the threads. The top of the connecting cavity 144 formed between the outer ring wall 143 and the inner ring wall 142 is provided with a gas storage sealing ring 28, and the top of the gas storage mounting end 211 is arranged on the gas storage sealing ring 28, so that the main mounting seat 14 and the gas storage mounting end 211 are in sealed connection. The gas outlet pipe 22 is a through pipe with both ends open, and a rubber ring 26 is arranged on the end of the gas outlet pipe 22 away from the gas outlet 212 (i.e. the gas inlet end of the gas outlet pipe 22). The rubber ring 26 is used to cooperate with the main piston 10. When inflating, the main piston 10 is pushed downward (i.e. moves towards the rubber ring 26) by the gas from the inflation cavity 111 and directly moves to the position where the bottom surface of the main piston 10 is in contact with the top of the rubber ring 26. Under the action of high-pressure gas, the main piston 10 tightly abuts against the rubber ring 26, thereby closing the gas inlet end of the gas outlet pipe 22 and isolating the communication between the gas outlet cavity 23 and the gas storage cavity 24, so that the gas from the inflation cavity 111 can only enter the connecting cavity 144 and the gas storage cavity 24 through the gas inlet cavity 141, thereby realizing the gas storage in the gas storage cavity 24.

[0055] In addition, the diameter of the side of the main piston 10 facing the rubber ring 26 (i.e. the active surface in contact with the rubber ring 26) is greater than the outer diameter of the rubber ring 26, so that during deflation, the main piston 10 can be pushed back into the gas inlet cavity 141 by the gas accumulated in the gas storage cavity 24. Once the main piston 10 leaves the rubber ring 26, the gas accumulated in the gas storage cavity 24 can be quickly released from the gas outlet 25 along the gas outlet pipe 22, realizing high-pressure dredging.

[0056] As shown in FIG. 1, Figure 3 The deflation control device 4 is installed on the main mounting seat 14 and has a deflation button 41, a deflation valve 42 and a deflation connecting rod 43. The deflation button 41 is exposed and movably arranged on the outer shell 18 and is used to control the opening of the deflation valve 42. The deflation valve 42 is installed on the deflation mounting seat 15 which is integrally formed on the main mounting seat 14. 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.

[0057] As shown in FIG. 1, Figures 5-8 The deflation valve 42 includes a deflation valve body 44, a deflation valve core 45, a deflation sealing element 46, a deflation elastic element 47 and a deflation valve rod 48.

[0058] As shown in FIG. 1, Figure 5 , 6As shown, the side wall of the air release valve body 44 is provided with at least one clamping protrusion 443, and the side wall of the air release mounting base 15 is provided with at least one clamping groove 153 matched with the clamping protrusion 443, and the air release valve body 44 is fixedly installed on the air release mounting base 15 through the clamping protrusion 443.

[0059] Specifically, the installation portion of the air release valve body 44 is in a cylindrical shape, the air release cavity is also in a circular hole shape, the clamping groove 153 is in an L shape, having an axial installation groove portion and a clamping groove portion perpendicular to the installation groove portion, and one side of the clamping groove portion is provided with a clamping protrusion 154. When the installation portion of the air release valve body 44 is inserted into the air release cavity, the clamping protrusion 443 enters along the installation groove portion, then rotates into the clamping groove portion, and is limited in the clamping groove portion by the clamping protrusion 154, thereby achieving the fixed installation of the air release valve 42.

[0060] The air release valve body 44 is provided with an air release sealing ring 441 between the air release valve body 44 and the air release cavity 151, the outer end of the air release valve body 44 is provided with an outer stop edge 445 which can be stopped on the outer end edge of the air release mounting base 15, and the inner end of the air release valve body 44 extends inwardly to have an inner stop edge 444 and a valve core installation port for installing the air release valve core, and the rotation of the outer stop edge 445 can achieve the clamping installation of the air release valve body 44. The air release valve core 45 is movably arranged on the air release valve body 44, the air release valve rod 48 is connected to the air release connecting rod 43 at one end and connected to the air release valve core 45 at the other end, and the air release connecting rod 43 drives the air release valve core 45 to move along the air release valve body 44 through the air release valve rod 48.

[0061] As shown in Figure 7 , 8 The air release valve body 44 is provided with an air release valve cavity 442, the air release valve rod 48 is in a bent shape, the lower end forms an extension end 482 which can extend into the air release valve cavity 442, the outer periphery of the extension end 482 is outwardly protruding to form a plurality of protrusions, and the adjacent protrusions form an air passage 483, the plurality of protrusions not only play a guiding role, but also the air passage 483 formed between the two protrusions is beneficial to air release.

[0062] The air release valve core 45 has an air release guide stem part 451 and an air release sealing part 452. One end of the air release guide stem part 451 extends into the air release valve cavity 442 and is embedded into the extension end 482 (i.e. the extension end 482 of the air release valve stem 48 is sleeved on the air release guide stem part 451), and the other end extends out of the air release valve cavity 442 and is formed with the valve core air release sealing part 452. The valve core air release sealing part 452 is provided with an air release sealing element 46 on the side facing the air release guide stem part 451, for forming an end face seal with the end face of the air release valve body 44. The air release elastic element 47 is a spring, which is installed between the air release valve stem 48 and the inner wall of the air release valve body 44, and is arranged between the air release valve core 45 and the air release valve stem 48, for acting on the air release valve stem 48. When the air release valve 42 is closed, the air release valve core 45 is pushed into the air release valve cavity 442 under the action of the gas, and at the same time the air release elastic element 47 can assist in pushing the air release valve stem 48 and the air release connecting rod 43 to reset the air release button 41. The outer diameter of the air release guide stem part 451 is smaller than the inner diameter of the valve core mounting port, and the outer periphery of the air release guide stem part 451 is outwardly convex and formed with a plurality of convex strips. Adjacent convex strips form air passage grooves 453 for gas to pass through. The air release sealing element 46 can form a seal with the end face of the air release valve body 44 during movement of the air release valve core 45 to close the air passage grooves 453. In actual situations, the air release elastic element 47 can also be cancelled, and the air release button 41 can be reset manually.

[0063] In this embodiment, the outer diameter of the convex strips is substantially the same as the inner diameter of the valve core mounting port. When the air release valve core 45 moves, the plurality of convex strips not only have a guiding effect, but also facilitate air release through the air passage grooves 453 formed between them. In another embodiment, the outer diameter of the convex strips can also be smaller than the inner diameter of the valve core mounting port.

[0064] When the air release cavity 151 connected to the air inlet cavity is under high pressure, the valve core air release sealing part 452 forms a face seal with the end face of the air release valve body 44 through the air release sealing element 46, thereby closing the air passage grooves 453. When air release is needed, the air release valve core 45 is pushed inward under the action of external force, and after the face seal between the valve core air release sealing part 452 and the end face of the air release valve body 44 is released, the gas in the air release cavity 151 can be discharged through the air passage grooves 453. Alternatively, the air release sealing element 46 is directly installed on the end face of the valve body, and the air passage grooves are formed in the inner wall of the air release valve cavity 442, which can also achieve the above-mentioned sealing and air release functions. In order to allow the gas to enter the air passage grooves 453 from the end where the air release sealing part 452 is located, the outer diameter of the sealing element 26 and the valve core air release sealing part 452 is smaller than the inner diameter of the air release cavity 151, i.e. a gap is formed between the outer periphery of the sealing element 26 and the valve core air release sealing part 452 and the inner wall of the air release cavity 141; at the same time, the outer diameter of the sealing element 26 and the valve core air release sealing part 452 is larger than the inner diameter of the valve core mounting port of the air release valve core, for realizing the end face seal of the air release valve body 44.

[0065] In the embodiment, the axis of the deflation cavity 151 is obliquely arranged with the axis of the air inlet cavity 141 (the gas storage cavity 24) or the air inlet cavity 111 (i.e. the deflation mounting base 15 is obliquely arranged on one side of the air inlet cylinder 11), and the deflation connecting rod 43 is vertically arranged (parallelly arranged with the axis of the air inlet cavity 111), so that the deflation connecting rod 43 not only moves downwardly but also moves laterally during the movement of the deflation valve rod 48, and then, the deflation connecting rod 43 is provided with a movable slot 431 at one end thereof facing the deflation valve rod 48, the deflation valve rod 48 is provided with a movable end 481 extending into the movable slot, and the slot width of the movable slot 431 is greater than the width of the movable end 481, so that the deflation valve rod 48 can move laterally in the movable slot 431, and the movable slot 431 can guide the lateral movement of the deflation valve rod 48 and prevent the deflation valve rod 48 from being separated from the deflation connecting rod 43.

[0066] When the air pressure in the gas storage cavity 24 reaches the predetermined value, the deflation button 41 can be slid downwardly, the deflation connecting rod 43 is slid downwardly, the deflation valve rod 48 is driven to move the deflation valve core 45, the deflation sealing element 46 is separated from the end face of the deflation valve body 44 to form a gap, the gas in the air inlet cavity 141 can enter the deflation cavity 151 through the deflation port 152, then enter the space between the air inlet cylinder 11 and the housing 18 along the gap between the deflation sealing element 46 and the deflation valve body 44, the gap between the deflation valve core 45 and the deflation valve body 44 (the air passage slot 453), and the gap between the deflation valve rod 48 and the deflation valve body 44 (the air passage slot 483), then is discharged to the outside along the gap between the deflation button 41 and the housing 18, and finally, the main piston 10 moves upwardly to separate from the rubber ring 26, the high-pressure gas in the gas storage cavity 24 is instantaneously released from the air outlet pipe, and the high-pressure clearing is realized.

[0067] Embodiment 2

[0068] The embodiment is basically the same as the embodiment 1, and the difference is that the side wall of the deflation valve body 44 is provided with at least one clamping protrusion 443, the side wall of the deflation mounting base 15 is provided with at least one clamping slot 153 matched with the clamping protrusion 443, the clamping slot 153 in the embodiment is a clamping hole, and the deflation valve body 44 is directly installed in the clamping hole of the deflation mounting base 15 through the clamping protrusion 443, so as to realize the fixed installation of the deflation valve.

[0069] The above embodiments are only the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: all equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A bleed valve characterised in that, The device comprises: a deflation mounting seat, which comprises a deflation cavity and a deflation port; a deflation valve body, which has a valve cavity and is arranged in the deflation cavity; and a deflation valve core, which has a deflation guide rod part extending into the valve cavity and a deflation sealing part arranged in the deflation cavity, and at least one air passage groove is arranged on the outer periphery of the deflation guide rod part or the inner wall of the valve cavity for air to pass through; wherein at least one clamping groove is arranged on the side wall of the deflation cavity, and a clamping protrusion corresponding to the clamping groove is arranged on the side wall of the deflation valve body, and the deflation valve body is clamped in the clamping groove of the deflation mounting seat through the clamping protrusion. The mounting part of the deflation valve body is in a cylindrical shape, and the deflation cavity is in a circular hole shape.

2. A bleed valve according to claim 1, wherein: The clamping groove is in an L shape and has an axial arrangement of a guide groove part and a clamping groove part perpendicular to the guide groove part. One side of the clamping groove part is provided with a clamping protrusion for preventing the clamping protrusion from being separated from the clamping groove.

3. A bleed valve according to claim 2, wherein: An outer stop edge is arranged at the outer end of the deflation valve body, and an inner stop edge is arranged inwardly at the inner end of the deflation valve body and is shaped as a valve core mounting port for mounting the deflation valve core.

4. A bleed valve according to claim 3, wherein: A deflation sealing ring is arranged between the deflation valve body and the deflation mounting seat.

5. A bleed valve according to any one of claims 1 to 4, wherein: Or / and, a deflation sealing member is arranged on the end face of the deflation sealing part or the deflation valve body for sealing the valve cavity. The deflation sealing member is mounted on the deflation sealing part, and the outer diameter of the deflation sealing member and the deflation sealing part is smaller than the inner diameter of the deflation cavity and larger than the inner diameter of the valve core mounting port of the deflation valve core.

6. A bleed valve according to claim 5, wherein: A plurality of convex strips are formed on the deflation guide rod part by circumferential protrusions, and the air passage groove is formed between two adjacent convex strips. A deflation elastic member and a deflation valve rod are arranged in the valve cavity, the deflation elastic member is arranged between the deflation valve rod and the inner wall of the deflation valve body, and the deflation valve rod is sleeved on the deflation guide rod part.

7. A bleed valve according to any one of claims 1 to 4, wherein: The device comprises:

8. An air release control device for a drain auger for controlling the release of high pressure gas from a gas reservoir, characterised in that, a main mounting seat for mounting a gas storage cylinder of the gas storage device, which has a gas inlet cavity communicating with the gas storage cylinder; a piston movably arranged in the gas inlet cavity and used for sealing an air outlet pipe of the gas storage device, and a deflation valve for controlling the piston of the gas inlet cavity to open the air outlet pipe; wherein the deflation valve is the deflation valve according to any one of claims 1-7, the deflation mounting seat is arranged on the main mounting seat, and the deflation cavity communicates with the gas inlet cavity. The device is characterized in that:

9. A deflation control device for a drain snake according to claim 8, wherein the device further comprises: a deflation connecting rod mounted on the deflation valve rod or the deflation valve core of the deflation valve; and a deflation button mounted on the outer end of the deflation connecting rod; wherein the moving direction of the deflation valve core is obliquely arranged with the moving direction of the deflation connecting rod, an activity groove is arranged at one end of the deflation connecting rod facing the deflation valve rod, the deflation valve rod has an activity end extending into the activity groove, and the groove width of the activity groove is greater than the width of the activity end. The device comprises the deflation control device according to claim 8 or 9.

10. A drain opener comprising: ​

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