Inflation and deflation device of dredger

Abstract

The utility model belongs to the technical field of dredgers, and particularly relates to an inflating and deflating device of a dredger. Comprising an air inflation device and an air deflation control device, the air inflation device is provided with a main installation base used for installing an air storage cylinder and provided with an air inlet cavity communicated with the air storage cylinder, an inflator is internally provided with an air inflation cavity communicated with the air inlet cavity, an air inlet one-way valve is installed between the air inflation cavity and the air inlet cavity, and one end of the air inflation rod is movably arranged in the air inflation cavity. One end of the main mounting seat is provided with an air inlet cavity, the other end of the main mounting seat extends out of the inflator and is provided with a handheld part, the deflation mounting seat comprises a deflation cavity communicated with the air inlet cavity, a deflation control device is mounted in the deflation cavity, the main mounting seat, the deflation mounting seat and the inflator are integrally formed, and the deflation cavity is obliquely arranged on one side of the inflator. Due to the fact that the main installation base, the deflation installation base and the inflator are integrally formed, the structure is simple, sealing performance and stability are better, installation is more convenient, and the air storage device can be directly installed on the inflation device.

Description

Technical Field

[0001] The utility model belongs to the technical field of dredges, in particular to an air-inflating and air-deflation device for dredges. 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] In the aforementioned prior patent, the pumping device and the gas storage device are connected and fixed via a separate mounting base. This separate mounting base must be fixed to both the pump of the pumping device and the gas storage device. To ensure sealing, corresponding seals must be provided between the various components. The use of a separate mounting base is not only structurally complex and inconvenient to install, but the more seals are used, the greater the likelihood of failure. The housing of the pumping device also needs to be installed using two half shells connected by screws, making the installation structure complex and inconvenient.

[0004] Furthermore, because the pumping device and the air reservoir are coaxially arranged, the space between the pump and the housing is limited. To accommodate the deflation control device and pressure display, a larger diameter mounting base is required. Consequently, the diameters of both the air reservoir and the pumping device's housing must increase, leading to increased costs. This is especially true for stainless steel, where an increased diameter requires more stainless steel. Furthermore, as the radius increases, thicker stainless steel is required to ensure the strength of the reservoir, further increasing costs. Summary of the Invention

[0005] The purpose of the utility model is to provide an air-inflating and air-deflation device for a dredge which has a simple and stable structure, a reasonable arrangement and can be quickly installed when in use.

[0006] The purpose of this utility model is achieved in this way:

[0007] The utility model proposes an inflation and deflation device for a clearing machine, which has the following characteristics: it is installed on the air cylinder of the air storage device of the clearing machine, comprises an inflation device for inflating the air cylinder, and an deflation control device for deflation of the air cylinder; wherein the inflation device comprises: a main mounting seat for mounting the air cylinder, comprising an air inlet chamber connected to the air cylinder, an air pump, which is provided with an inflation chamber connected to the air inlet chamber, an air inlet one-way valve installed between the inflation chamber and the air inlet chamber, an inflation rod, one end of which is movably arranged in the inflation chamber, and the other end of which extends out of the air pump and is provided with a hand-held portion, and a deflation mounting seat, comprising a deflation chamber connected to the air inlet chamber, the deflation control device being installed in the deflation chamber, the main mounting seat, the deflation mounting seat and the air pump being integrally formed, and the deflation chamber is arranged obliquely on one side of the air pump, so that the axis of the deflation chamber is inclined to the axis of the inflation chamber.

[0008] The inflation and deflation device of the clearing device proposed in the present invention may also have such a feature, wherein the axis of the inflation chamber is coaxially arranged with the axis of the air inlet chamber, and the outer wall of one side of the air pump is concave inward near one end of the air inlet chamber, and is surrounded to form a cylindrical deflation mounting seat, so that the deflation chamber and the air inlet chamber are connected to form a deflation port.

[0009] The inflation and deflation device of the clearing device proposed in the present invention may also have such a feature, wherein the deflation control device has a deflation valve, which contains: a valve body, which is provided with a valve cavity, a valve core, which has a guide rod portion extending into the valve cavity and a valve core sealing portion exposed to the valve cavity, and a sealing member installed on the valve core sealing portion for forming an end face seal with the end face of the valve body, and at least one ventilation groove for gas to pass through is formed between the outer periphery of the guide rod portion and the inner wall of the valve cavity, and the sealing member can form a seal with the end face of the valve body to close the ventilation groove in the process of following the movement of the valve core.

[0010] The inflation and deflation device of the clearing device proposed in the utility model may also have such a feature, wherein the valve body is installed in the deflation chamber, and the deflation control device also has: a deflation button for controlling the opening of the deflation valve, a deflation connecting rod, linking the deflation button and the valve core, and the deflation valve also contains a valve stem, one end of which is connected to the deflation connecting rod, and the other end is connected to the valve core. 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.

[0011] The inflation and deflation device of the clearing device proposed in the present invention may also have such a feature that an outer rib is extended from the outer end of the valve body to block the edge of the deflation mounting seat, and an inner rib is extended inward from the inner end of the valve body to form a valve core mounting port for mounting the valve core.

[0012] The inflation and deflation device of the clearing device proposed in the present invention may also have such a feature, wherein a deflation mounting portion is further provided on the side of the air pump, a mounting cavity is provided in the deflation mounting portion, and the valve body is fixedly installed in the mounting cavity, and the deflation control device also has: a deflation button for controlling the opening of the deflation valve, a deflation pipe, one end of which is installed on the deflation mounting seat, and the other end is installed on the deflation mounting portion, and a deflation channel connecting the mounting cavity and the deflation cavity is provided in the deflation pipe; the deflation valve also contains a valve stem, one end of which is connected to the deflation button, and the other end is connected to the valve core.

[0013] The inflation and deflation device of the clearing device proposed in the present invention may also have such a feature, wherein the two ends of the deflation pipe are fixedly installed on the deflation mounting seat and the deflation mounting part through sealing rings respectively; or, the two ends of the deflation pipe are fixedly installed on the deflation mounting seat and the deflation mounting part respectively through connecting heads, and sealing rings are respectively provided between the two connecting heads and the deflation mounting seat and the deflation mounting part, and an air duct is provided in the connecting head for connecting the deflation channel and the deflation cavity.

[0014] The inflation and deflation device of the clearing device proposed in the present invention may also have such a feature, wherein the inflation device also has: an end cover, which is installed at the end of the air pump away from the main mounting seat, and an outer shell, which is sleeved on the outer circumference of the air pump. The end cover has an inner ring part and an outer ring part. The inner side of the inner ring part is surrounded by a through hole for the inflation rod to pass through. The inner wall of the outer ring part is formed with a connecting part connected to the air pump. One end of the outer shell rests on the main mounting seat, and the other end rests on the outer ring part.

[0015] The inflation and deflation device of the clearing device proposed in the present invention may also have such a feature, wherein the inflation rod comprises: a rod body, one end of which extends into the inflation cavity, and the other end extends out of the air pump and is provided with a hand-held part, an inflation piston, which is formed at the end of the rod body located in the inflation cavity, and a sealing ring is provided between the end of the rod body and the interior of the inflation cavity; the rod body is hollow, and an air vent connecting the interior of the rod body and the inflation cavity is provided at the end close to the inflation piston, and the end away from the inflation piston is connected to the outside world.

[0016] The inflation and deflation device of the clearing device proposed in the present invention may also have such a feature, wherein a fixing seat fixed to the rod body is provided on the hand-held part, a socket is provided in the middle of the fixing seat for inserting the end of the rod body away from the inflation piston, a limiting hole is provided on the peripheral side of the fixing seat, a limiting block cooperating with the limiting hole is provided on the rod body, a slot leading to the limiting hole is formed on the peripheral wall of the socket, and the limiting block is inserted along the slot and clamped into the limiting hole.

[0017] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0018] According to the inflation and deflation device of the clearing device proposed by the utility model, since the main mounting seat, the deflation mounting seat and the air pump are integrally formed, not only is the structure simple, but the sealing and stability are also better, and it is more convenient to install. The air storage device can be directly installed on the inflation device. At the same time, the axis of the deflation chamber and the axis of the inflation chamber are inclined to reduce the lateral installation space of the deflation control device, and make full use of the limited space around the air pump, so that the structure of the entire clearing device is more compact, achieving the purpose of miniaturization and lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model dredge.

[0020] Figure 2 It is a cross-sectional view of the dredge of Example 1 of the utility model.

[0021] Figure 3 It is a cross-sectional view of the inflation device of Example 1 of the present utility model.

[0022] Figure 4 It is a structural exploded view of the inflation device of Example 1 of the present utility model.

[0023] Figure 5 It is a structural schematic diagram of an air pump according to embodiment 1 of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the handheld part of the utility model.

[0025] Figure 7 It is a cross-sectional view of the installation structure of the gas storage device in Example 1 of the present utility model.

[0026] Figure 8 It is a cross-sectional view of the installation structure of the pressure display device and the deflation control device in Example 1 of the present utility model.

[0027] Figure 9 It is a structural schematic diagram of the inflation device of Example 1 of the utility model.

[0028] Figure 10 This is an exploded view of the installation structure of the pressure display device in Example 1 of the present utility model.

[0029] Figure 11 yes Figure 8 A partial enlarged view of point A in the middle.

[0030] Figure 12 It is a cross-sectional view of the installation structure of the deflation control device of Example 2 of the present utility model.

[0031] Figure 13 It is a cross-sectional view of the installation structure of the deflation control device of Example 3 of the present utility model.

[0032] The meaning of the numbers in the figure:

[0033] Inflating device 1, main piston 10, air pump 11, inflating chamber 111, inflating rod 12, rod body 121, inflating piston 122, limiting block 123, sealing ring 124, hand-held part 13, fixing seat 131, handle 132, limiting hole 133, slot 134, jack 135, main mounting seat 14, air inlet chamber 141, inner ring wall 142, outer ring wall 143, connecting chamber 144, bushing 145, deflation mounting seat 15, deflation chamber 151, deflation port 152, pressure mounting seat 16, pressure chamber 161, pressure port 162, end cover 17, inner ring portion 171, outer ring portion 172, through hole 173, shell 18, notch 181, air storage device 2, air storage Cylinder 21, gas storage mounting end 211, gas outlet 212, gas outlet pipe 22, gas outlet mounting seat 221, gas outlet cavity 23, gas storage cavity 24, gas outlet nozzle 25, rubber ring 26, pressure display device 3, pressure display screen 31, pressure detector 32, deflation control device 4, deflation button 41, sealing ring 441, deflation valve 42, deflation connecting rod 43, movable groove 431, valve body 44, valve cavity 442, valve core 45, guide rod part 451, sealing part 452, ventilation groove 453, sealing part 46, elastic part 47, valve stem 48, movable end 481, insertion end 482, deflation pipe 49, deflation channel 491, trachea mounting seat 492, connecting head 493, airway 494. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with specific embodiments:

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Example 1:

[0039] This embodiment provides a dredge, in particular a dredge for dredging toilets or sewer pipes, such as Figure 1 and Figure 2 As shown, the clearing device at least includes an air pumping and deflation device and an air storage device 2. The air pumping and deflation device is installed on the air cylinder 21 of the air storage device 2, and includes an air pumping device 1, a pressure display device 3 and an air deflation control device 4. The air storage device 2 is installed on the air pumping device 1 and has an air cylinder 21 for storing gas from the air pumping device 1. The air pumping device 1 is used to inflate the air cylinder 21, and the air deflation control device 4 is used to deflate the air cylinder 21.

[0040] <Inflator device>

[0041] like Figure 3 As shown, the inflating device 1 includes an inflator 11 made of plastic, an inflating rod 12, a main mounting seat 14, a deflation mounting seat 15, a pressure mounting seat 16, an end cover 17, a housing 18 and a main piston 10. The deflation mounting seat 15 and the pressure mounting seat 16 are used to mount the deflation control device 4 and the pressure display device 3 respectively. Figure 5 As shown, the pump 11, main mounting base 14, deflation mounting base 15, and pressure mounting base 16 are all integrally formed. Compared to the prior art method in which the pump 11 is separately mounted on the base 14 via a sealing ring, this embodiment eliminates this sealing structure, improving the product's sealing performance and reducing the risk of air leakage during inflation.

[0042] like Figure 3-Figure 4 As shown, the pump 11 is hollow and contains an air chamber 111. One end of the pump rod 12 is movably disposed within the chamber 111, while the other end extends out of the pump 11 and is provided with a handle 13. The main mounting base 14 is located at the bottom of the pump 11 and is used to mount the air reservoir 21. The main mounting base 14 is hollow and contains an air inlet chamber 141, within which the main piston 10 is movably disposed. In this embodiment, the axis of the air chamber 111 is coaxial with the axis of the air inlet chamber 141.

[0043] 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 and forms an air intake chamber 141. A partition 112 is provided between the air intake chamber 141 and the pumping chamber 111. The air intake check valve 61 is mounted on the partition 112. The gas in the pumping chamber 141 pushes the check valve 61 open and enters the air intake 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 thread. In practice, the mounting portion can also be a snap-fit ​​structure, and a snap-fit ​​connection is adopted accordingly. A connecting cavity 144 is formed between the inner annular wall 142 and the outer annular wall 143, communicating with the interior of the air reservoir 21. The air intake cavity 141 is in communication with the connecting cavity 144. During operation, gas from the pumping cavity 111 enters the air intake cavity 141 through the air intake one-way valve 61 when it is open. The gas then enters the connecting cavity 144 (i.e., enters the air reservoir 21) through the gap between the air intake cavity 141 and the primary piston 10. During this process, the primary piston 10 moves under the action of the gas until it blocks the air outlet pipe 22 in the air reservoir 21.

[0044] The outer wall of one side of the air pump 11 is concave inward near one end of the air inlet chamber, and is surrounded to form a cylindrical air release mounting seat 15. A air release chamber 151 connected to the air inlet chamber 141 is formed in the air release mounting seat 15. The end of the air release control device 4 is set on the air release mounting seat 15, and the air release chamber 151 and the air inlet chamber 141 are connected to form an air release port 152. When the air release control device 4 is opened, the air inlet chamber 141 is connected to the outside atmosphere. The gas in the air inlet chamber 141 can enter the air release chamber 151 through the air release port 152 and be discharged to the outside through the air release control device 4, forming a low pressure. Then the main piston 10 moves to open the air outlet pipe 22, and the high-pressure gas in the air storage chamber 24 is instantly discharged from the air outlet pipe 22, realizing high-pressure clearing.

[0045] A pressure chamber 161 is formed in the pressure mounting seat 16, and the end of the pressure display device 3 is set on the pressure mounting seat 16. A pressure air port 162 is opened on the pressure mounting seat 16 to connect the pressure chamber 161 with the connecting chamber 144. The gas in the connecting chamber 144 (gas cylinder 21) can enter the pressure chamber 161 through the pressure air port 162, thereby facilitating the pressure display device 3 to detect the gas pressure in the gas cylinder 21 and display the current air pressure value.

[0046] In this embodiment, since the axis of the inflation chamber 111 is coaxially arranged with the axis of the air inlet chamber 141, the pressure mounting seat 16 and the deflation mounting seat 15 are respectively formed on both sides of the air pump 11, that is, the deflation control device 4 and the pressure display device 3 can be respectively placed on both sides of the air pump 11.

[0047] The end cap 17 is mounted on the end of the air pump 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 surrounded by a through hole 173 for the air rod 12 to pass through, and a gap is provided between the inner wall of the through hole 173 and the air rod 12 for gas to enter. When inflating, the external gas enters the air chamber 111 through the gap. The inner wall of the outer ring portion 172 is formed with a connecting portion connected to the air pump 11. In this embodiment, the connecting portion is an internal thread. Correspondingly, an external thread is formed on the top of the air pump 11. The air pump 11 and the end cap 17 are connected by a thread. In actual situations, the mounting portion can also be a structure such as a snap-on structure, which is connected by a snap-on structure, or directly glued.

[0048] The outer shell 18 is sleeved on the outer circumference of the air pump 11, and one end of the outer shell 18 rests on the outer ring wall 143 of the main mounting seat 14, and the other end rests on the outer ring portion 172 of the end cover 17. That is to say, the main mounting seat 14 and the end cover 17 clamp the outer shell 18 between the two. Compared with the existing technology in which the left and right shells are fixed by screws, the installation structure is greatly simplified and the installation efficiency is improved.

[0049] The pumping rod 12 comprises a rod body 121 and a pumping piston 122. One end of the rod body 121 extends into the pumping cavity 111 to form the pumping piston 122. The diameter of the pumping piston 122 is larger than the diameter of the rod body 121 and also larger than the inner diameter of the through hole 173 on the end cap 17, so that the end cap 17 can confine the pumping piston 122 within the pump 11 to prevent it from falling out. A sealing ring 124 is also provided between the outer ring of the pumping piston 122 and the inner wall of the pumping cavity 111. The rod body 121 is hollow, and a vent 125 connecting the interior of the rod body 121 with the pumping cavity 111 is provided at the end near the pumping piston 122. The end away from the pumping piston 122 is connected to the outside world, that is, the interior of the rod body 121 is connected to the pumping cavity 111, which saves effort when pulling the pumping rod 12 back and forth.

[0050] The other end of the rod body 121 extends out of the air pump 11 and is provided with a hand-held portion 13. Figure 6 As shown, the hand-held portion 13 includes a handle 132 for a person to hold and a fixing base 131 for fixing to the rod body 121. The handle 132 is cylindrical and arranged perpendicular to the rod body 121. A socket 135 is provided in the middle of the fixing base 131 for inserting the end of the rod body 121 away from the pumping piston 122. A limiting hole 133 is provided on the peripheral side of the fixing base 131. A limiting block 123 that cooperates with the limiting hole 133 is provided on the rod body 121. A slot 134 leading to the limiting hole 133 is formed on the peripheral wall of the socket 135. The limiting block 123 is inserted along the slot 134 and is clamped into the limiting hole 133.

[0051] <Gas Storage Device>

[0052] like Figure 7 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.

[0053] 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 from the inflation chamber 111, 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 high-pressure 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 from the inflation chamber 111 can only enter the connecting chamber 144 and the air storage chamber 24 through the air inlet chamber 141, thereby realizing the gas storage in the air storage chamber 24.

[0054] 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 flushed open 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 released from the air outlet nozzle 25 along the air outlet pipe 22, thereby achieving high-pressure dredging.

[0055] <Pressure Display Device>

[0056] like Figure 8 and Figure 9As shown, the pressure display device 3 is installed on the pressure mounting base 16. The pressure display device 3 includes a pressure display screen 31 and a pressure detector 32. A notch 181 is provided on the outer shell 18 for exposing the pressure display screen 31. The pressure detector 32 is installed on the mounting base 16 and is used to detect the air pressure in the air storage chamber 24. At the same time, the pressure value is displayed on the pressure display screen 31 so that the user can view and know the air pressure in the air storage chamber 24 in real time. When the preset air pressure is reached, the deflation control device can be started to deflate.

[0057] <Deflation Control Device>

[0058] like Figure 8 、 Figure 10-11 As shown, the deflation control device 4 is mounted on the deflation mounting seat 15 and comprises 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 housing 18 and is used to control the opening of the deflation valve 42. The deflation valve 42 is mounted on the deflation mounting seat 15. The deflation connecting rod 43 is mounted 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. Specifically, as shown in FIG. Figure 10 and Figure 11 As shown, the deflation valve 42 includes 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 seat 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 seat 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.

[0059] A valve cavity 442 is defined in the valve body 44. The valve stem 48 is bent, with an insertion end 482 formed at the lower end thereof to be inserted into the valve cavity 442. The outer periphery of the insertion end 482 protrudes outward to form a plurality of ridges, with ventilation grooves 483 formed between adjacent ridges. The valve core 45 comprises 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 (i.e., the insertion end 482 of the valve stem 48 is sleeved on the guide rod portion 451). The other end extends out of the valve cavity 442 and forms a valve core sealing member. The valve core sealing portion 452 is provided with a sealing member 46 on the side 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. It is also located between the valve core 45 and the valve stem 48, acting 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 helps push 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 protruding ridges. Adjacent ridges form vent grooves 453 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 grooves 453. In practice, the elastic member 47 can be omitted, and the deflation button 41 can be manually reset by sliding it.

[0060] 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.

[0061] In this embodiment, the axis of the deflation chamber 151 is arranged obliquely to the axis of the air inlet chamber 141 (air storage chamber 24) or the air pumping chamber 111 (that is, the deflation mounting seat 15 is arranged obliquely on one side of the air pump 11), and the deflation connecting rod 43 is arranged vertically (arranged parallel to the axis of the air pumping chamber 111). Therefore, the deflation connecting rod 43 will not only move downward but also move laterally in the process of pushing the valve stem 48 to move. 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.

[0062] like Figure 11 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 11 The gas in the air inlet chamber 141 can enter the air release chamber 151 through the air release port 152, and then follow the gap between the seal 46 and the valve body 44, the gap between the valve core 45 and the valve body 44 (vent groove 453), and the gap between the valve stem 48 and the valve body 44 (vent groove 483) into the space between the shell 18 and the air pump 11, and then be discharged to the outside along the gap between the air release button 41 and the shell 18. Then the main piston 10 moves up and leaves the rubber ring 26, and the high-pressure gas in the air storage chamber 24 is instantly released from the air outlet pipe to achieve high-pressure clearing.

[0063] Example 2:

[0064] In this embodiment, based on the above embodiment 1, the deflation control device 4 has a different installation structure. Specifically, Figure 12 As shown, a deflation mounting portion 113 is provided on the side of the air pump 11 between the deflation button 41 and the deflation mounting seat 15. The deflation mounting portion 113 is a cylindrical structure with openings at both ends, and a mounting cavity 114 is formed inside. The deflation valve 42 is installed in the mounting cavity 114. The deflation control device 4 also has a bent deflation pipe 49, one end of the deflation pipe 49 is installed on the deflation mounting seat 15, and the other end is installed on the deflation mounting portion 113, and a deflation channel 491 connecting the mounting cavity 114 and the deflation cavity 151 is provided in the deflation pipe 49. The two ends of the deflation pipe 49 are fixed to the deflation mounting portion 113 and the deflation mounting seat 15 through sealing rings respectively.

[0065] This embodiment eliminates the deflation connecting rod structure, and the outer end of the valve stem 48 of the deflation valve 42 is directly mounted on the deflation button 41. When the deflation button 41 moves, the valve stem 48 directly drives the valve core 45 to move and open the deflation valve 42, allowing the gas in the air inlet chamber 141 to enter the deflation chamber 151 from the deflation port 152, then enter the installation chamber 114 along the deflation channel 191 of the deflation pipe 49, and then enter the space between the housing 18 and the air pump 11 along the gap between the seal 46 and the valve body 44, the gap between the valve core 45 and the valve body 44 (vent groove 453), and the gap between the valve stem 48 and the valve body 44 (vent groove 483). Then, the gas is discharged to the outside through the gap between the deflation button 41 and the housing 18, and is connected to the outside world. The deflation pipe 49 can be made of soft or hard material.

[0066] Example 3:

[0067] This embodiment is based on the above embodiment 2, and the installation structure of the vent pipe 49 is slightly different. Specifically, Figure 13 As shown, the deflation mounting base 15 is mounted with an air pipe mounting base 492 for mounting the deflation pipe 49. The air pipe mounting base 492 is formed with a connector 493 that extends into the deflation passage 491. An air passage 494 is defined in the middle of the connector 493 and the air pipe mounting base 492, connecting the deflation passage 491 with the deflation cavity 151. The deflation mounting portion 113 is formed with a connector that can be inserted into the deflation passage 491 at the end facing the deflation pipe 49. A sealing ring is provided between the air pipe mounting base 492 and the deflation mounting base 15.

[0068] When the deflation button 41 moves, the valve core 45 is directly driven to move through the valve stem 48 to open the deflation valve 42, so that the gas in the air inlet chamber 141 can enter the deflation chamber 151 through the deflation port 152, and then enter the installation chamber 114 along the air channel 494 and the deflation channel 191, and then enter the space between the outer shell 18 and the air pump 11 along the gap between the seal 46 and the valve body 44, the gap between the valve core 45 and the valve body 44 (vent groove 453), and the gap between the valve stem 48 and the valve body 44 (vent groove 483), and then be discharged to the outside along the gap between the deflation button 41 and the outer shell 18, and communicate with the outside world.

[0069] 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. A device for pumping and deflation of a dredge, characterized in that: The gas storage device is installed on the gas storage cylinder of the dredge, including: An air pumping device, used to pump air into the air cylinder. a deflation control device, used for deflation of the air cylinder; Wherein, the inflating device comprises: The main mounting seat is used to mount the gas cylinder and contains an air inlet cavity connected to the gas cylinder. The air pump is provided with an air pump cavity communicating with the air inlet cavity. The air intake one-way valve is installed between the pumping chamber and the air intake chamber. A pumping rod, one end of which is movably arranged in the pumping cavity, and the other end of which extends out of the pump and is provided with a hand-held portion, and The deflation mounting seat comprises a deflation cavity connected to the air inlet cavity, and the deflation control device is installed in the deflation cavity. The main mounting seat, the deflation mounting seat and the air pump are integrally formed, and the deflation cavity is obliquely arranged on one side of the air pump.

2. The air pumping and deflation device for a pipe cleaner according to claim 1, characterized in that: in, The axis of the pumping cavity is coaxial with the axis of the air inlet cavity. One side outer wall of the air pump is concave inwards near one end of the air inlet cavity and surrounds to form a cylindrical air release mounting seat, so that the air release cavity and the air inlet cavity are connected to form an air release port.

3. The air pumping and deflation device for a plumbing fixture according to claim 1 or 2, characterized in that: in, The deflation control device has a deflation valve, which contains: The valve body has a valve cavity therein. The valve core has a guide rod portion extending into the valve cavity and a valve core sealing portion exposed outside the valve cavity, and A sealing member is mounted on the valve core sealing portion and is used to form an end face seal with the end face of the valve body. At least one ventilation groove for gas to pass through is formed between the outer periphery of the guide rod portion and the inner wall of the valve cavity. The sealing member can form a seal with the end face of the valve body to close the ventilation groove while following the movement of the valve core.

4. The air pumping and deflation device for a pipe cleaner according to claim 3, characterized in that: in, The valve body is installed in the deflation cavity, and the deflation control device further comprises: Deflation button, used to control the deflation valve to open, The deflation connecting rod links the deflation button and the valve core. The deflation valve also includes a valve stem, one end of which is connected to the deflation connecting rod and the other end is connected to the valve core. 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.

5. The air pumping and deflation device for a pipe cleaner according to claim 4, characterized in that: An outer rib extending from the outer end of the valve body is provided to block the edge of the degassing mounting seat, and an inner rib extending inward from the inner end of the valve body forms a valve core mounting opening for mounting the valve core.

6. The air pumping and deflation device for a plumbing fixture according to claim 3, characterized in that: in, A deflation mounting portion is further provided on the side of the air pump, wherein a mounting cavity is provided in the deflation mounting portion, and the valve body is fixedly mounted in the mounting cavity. The deflation control device further comprises: Deflation button, used to control the deflation valve to open, a deflation pipe, one end of which is mounted on the deflation mounting seat and the other end of which is mounted on the deflation mounting portion, and a deflation passage communicating with the mounting cavity and the deflation cavity is provided in the deflation pipe; The deflation valve further comprises a valve stem, one end of which is connected to the deflation button and the other end of which is connected to the valve core.

7. The air pumping and deflation device for a pipe cleaner according to claim 6, characterized in that: in, The two ends of the vent pipe are fixedly mounted on the vent mounting seat and the vent mounting portion through sealing rings respectively; Alternatively, both ends of the deflation pipe are fixedly mounted on the deflation mounting seat and the deflation mounting portion through a connector, and an air passage for connecting the deflation channel and the deflation cavity is provided in the connector.

8. The air pumping and deflation device for a plumbing fixture according to claim 1 or 2, characterized in that: in, The pumping device also has: The end cap is mounted on the end of the pump away from the main mounting seat. The outer shell is sleeved on the outer periphery of the air pump. The end cap has an inner ring portion and an outer ring portion. The inner side of the inner ring portion is surrounded by a through hole for the pump rod to pass through. The inner wall of the outer ring portion is formed with a connecting portion connected to the pump. One end of the shell rests on the main mounting seat, and the other end rests on the outer ring portion.

9. The air pumping and deflation device for a plumbing fixture according to claim 7, characterized in that: in, The pumping rod has: The rod body has one end extending into the pumping cavity and the other end extending out of the pump and is provided with the hand-held portion. An air pump piston is formed at one end of the rod body located in the air pump cavity, and a sealing ring is provided between the piston and the interior of the air pump cavity; The rod body is hollow, and an air vent connecting the interior of the rod body and the pumping cavity is provided at one end close to the pumping piston, while an end away from the pumping piston is connected to the outside.

10. The air pumping and deflation device for a pipe cleaner according to claim 9, characterized in that: in, The handheld portion is provided with a fixing seat fixed to the rod body, a socket is provided in the middle of the fixing seat for inserting the end of the rod body away from the pumping piston, a limiting hole is provided on the peripheral side of the fixing seat, and a limiting block is provided on the rod body to cooperate with the limiting hole. A slot leading to the limiting hole is formed on the peripheral wall of the insertion hole, and the limiting clamping block is inserted along the slot and clamped into the limiting hole.

Images