Dredging device

Abstract

The invention belongs to the technical field of pipeline dredging, and particularly relates to a dredger. Comprising an inflating device and a gas storage device which is installed on the inflating device, provided with a gas storage cylinder and used for storing gas from the inflating device; the deflation control device is used for releasing gas in the gas storage cylinder; the plug device is mounted at the gas release end of the gas storage device and comprises a plug connecting pipe, the plug connecting pipe is provided with a gas inlet connecting part, a flexible pipe part and a leather bag mounting part which are integrally formed, and the gas inlet connecting part is used for being connected with the gas outlet end of the gas storage device; and the leather bag is provided with a leather bag mounting end with a mounting hole and a leather bag air outlet end, and the leather bag mounting end is mounted on the leather bag mounting part of the plug connecting pipe. Due to the fact that the air inlet connecting part, the flexible pipe part and the leather bag installation part of the plug device are integrally formed, the plug device is simple in structure and better in sealing performance and stability, the plug device can be used only by directly installing the air inlet connecting part and the dredger air storage device together, and installation is quite rapid and convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline dredging, and in particular relates to a dredging device. Background Art

[0002] In daily life, people often encounter the phenomenon of sewer pipes and toilets being blocked, and unblockers can help people solve this problem. Existing unblockers are usually pneumatic toilet unblockers proposed in the prior patent CN218881073U, which continue to generate energy by pumping air through a gas storage device, and then flushing the gas from a plug device installed at the gas outlet end, and under the strong gas impact, the blocked sewer pipe or toilet is unblocked.

[0003] At present, the connection structure of most of the unblockers and plugging devices is complicated during the connection process. For example, a flexible toilet unblocking head proposed in CN219471116 U has a first connecting component and a second connecting component respectively connected to the unblocker air storage device and the air bag. The first connecting component and the second connecting component respectively include multiple components. The multiple components are connected together, which not only has a complicated structure, but also is not convenient to install, and the connections between the multiple components are more likely to fail. Summary of the invention

[0004] The object of the present invention is to provide a dredge which has a simple and stable structure and can be quickly installed when in use.

[0005] The object of the present invention is achieved in that:

[0006] The present invention proposes a clearing device with the following characteristics, including: an air pumping device, an air storage device, which is installed on the air pumping device and has an air cylinder for storing gas from the air pumping device; a deflation control device, which is used to release the gas in the air cylinder; and a plugging device, which is installed at the gas release end of the air storage device and includes: a plugging connecting pipe, which has an integrally formed air inlet connecting part, a flexible tube part and a bladder mounting part, and the air inlet connecting part is used to connect the air outlet end of the air storage device; a bladder, which has a bladder mounting end with a mounting hole and a bladder air outlet end, and the bladder mounting end is installed on the bladder mounting part of the plugging connecting pipe.

[0007] The clearing device proposed in the present invention may also have such a feature, wherein the plugging device also includes a nut for fixing the bladder on the bladder mounting part; the bladder mounting part includes: an inner wall abutment section for abutting against the inner wall of the bladder mounting end; and a threaded fixing section for installing the nut.

[0008] The clearing device proposed in the present invention may also have such features, wherein it also includes a gasket, which is arranged between the bladder and the nut; a mounting protrusion extends outward from the mounting end of the bladder, and the gasket is sleeved on the mounting protrusion; a plurality of stop protrusions are arranged on the side of the gasket close to the nut, and a plurality of stop grooves are correspondingly arranged on the nut.

[0009] The dredge proposed in the present invention may also have such a feature, wherein an internal thread is provided on the inner side of the air inlet connection part and a clamping structure is provided on the outer side; the air inlet connection part is also provided with an inner convex ring, and a receiving groove is formed between the inner convex ring and its side wall.

[0010] The clearing device proposed in the present invention may also have such a feature, wherein the air intake connection part, the flexible tube part and the bladder mounting part are all injection molded from flexible materials; or, the air intake connection part and the bladder mounting part are made of hard materials and are injection molded for the second time with the flexible tube part.

[0011] The clearing device proposed in the present invention may also have such a feature, wherein the air pump comprises: an air pump containing an air pumping chamber; an air pumping rod, one end of which is movably arranged in the air pumping chamber, and the other end of which extends out of the air pump and is provided with a hand-held part; and a main mounting seat for installing an air storage cylinder; the main mounting seat and the air pump are integrally formed.

[0012] The dredger proposed in the present invention may also have such a feature, wherein the axis of the air pumping chamber and the axis of the air storage cylinder are coaxially arranged or parallel to each other.

[0013] The clearing device proposed in the present invention may also have such a feature that the air pump further comprises: an end cover installed at the end of the air pump away from the main mounting seat, an outer shell sleeved on the outer circumference of the air pump, the end cover comprising 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 air pump rod to pass through, the inner wall of the outer ring portion is formed with a connecting portion connected to the air pump, one end of the outer shell abuts against the main mounting seat, and the other end abuts against the outer ring portion.

[0014] The clearing device proposed in the present invention may also have such a feature, wherein the inflation device also has an inclined deflation mounting seat for installing the deflation control device, the deflation mounting seat is integrally formed with the air pump, and a deflation cavity is formed in the deflation mounting seat, and a deflation port connecting the deflation cavity with the air pump is provided on the deflation mounting seat.

[0015] The dredge proposed in the present invention may also have the following features: a vent button and a vent valve are mounted on a vent mounting seat; a vent connecting rod links the vent button and the vent valve, wherein the vent valve comprises: a valve body, which is arranged in a vent cavity and has a valve cavity; a valve core, which has a guide rod portion extending into the valve cavity and a valve core sealing portion arranged in the vent cavity, and the outer periphery of the guide rod portion or the inner wall of the valve cavity is provided with at least one ventilation groove for gas to pass through; and a sealing member, which is mounted on the valve core sealing portion or the end face of the valve body, and when the vent cavity is under high pressure, the valve core sealing portion forms a surface seal with the end face of the valve body through the sealing member, thereby closing the ventilation groove; when venting is required, the valve core is pushed inward under the action of an external force, and the gas in the vent cavity is discharged through the ventilation groove.

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

[0017] According to the clearing device proposed in the present invention, since the air intake connection part, the flexible tube part and the bladder installation part of the plugging device are integrally formed, it not only has a simple structure, but also has better sealing and stability. When in use, it only needs to directly install the air intake connection part and the clearing device air storage device together, and the installation is very quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the dredging device of the present invention.

[0019] Figure 2 It is a cross-sectional view of the dredge according to embodiment 1 of the present invention.

[0020] Figure 3 It is a cross-sectional view of the inflation device of Example 1 of the present invention.

[0021] Figure 4 It is a structural exploded view of the inflation device of Example 1 of the present invention.

[0022] Figure 5 It is a schematic structural diagram of an air pump according to Embodiment 1 of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the handheld part of the present invention.

[0024] Figure 7 It is a cross-sectional view of the installation structure of the gas storage device in Example 1 of the present invention.

[0025] 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 invention.

[0026] Fig. 9 It is a schematic structural diagram of the inflation device of embodiment 1 of the invention.

[0027] Fig.10It is a disassembled view of the installation structure of the pressure display device in Example 1 of the present invention.

[0028] Fig.11 yes Figure 8 A partial enlarged view of point A in the middle.

[0029] Fig.12 It is a schematic structural diagram of the plugging device according to Example 1 of the present invention.

[0030] Fig.13 It is a structural exploded view of the plugging device of Example 1 of the present invention.

[0031] Fig.14 It is a schematic structural diagram of the plug connecting pipe according to Example 1 of the present invention.

[0032] Fig.15 It is a structural cross-sectional view of the plugging device according to Example 1 of the present invention.

[0033] Fig.16 It is a schematic structural diagram of the gasket of Example 1 of the present invention.

[0034] Fig.17 It is a schematic structural diagram of the nut according to embodiment 1 of the present invention.

[0035] Fig.18 It is a schematic structural diagram of the inflation device of Example 2 of the present invention.

[0036] Fig.19 It is an installation structure diagram of the air pump, the pressure display device, and the deflation control device according to embodiment 2 of the present invention.

[0037] Fig. 20 It is a cross-sectional view of the inflation device of Example 2 of the present invention.

[0038] Fig.21 It is a schematic cross-sectional view of the main piston installation structure of Example 3 of the present invention.

[0039] Fig. 22 It is an exploded view of the main piston installation structure of Example 3 of the present invention.

[0040] Fig.23 It is a cross-sectional view of the installation structure of the exhaust control device of Example 4 of the present invention.

[0041] Fig.24 It is a cross-sectional view of the installation structure of the exhaust control device of Example 5 of the present invention.

[0042] Fig.25 It is a structural cross-sectional view of the plugging device of Example 6 of the present invention.

[0043] The meaning of the symbols in the figure:

[0044] 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, air storage 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 1 52, pressure mounting seat 16, pressure chamber 161, pressure air port 162, end cover 17, inner ring portion 171, outer ring portion 172, through hole 173, housing 18, notch 181, gas storage device 2, gas storage cylinder 21, gas storage mounting end 211, gas outlet 212, gas outlet pipe 22, gas outlet mounting seat 221, gas outlet chamber 23, gas storage chamber 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 portion 451, sealing portion 452, ventilation groove 453, sealing member 46, elastic member 47, valve stem 48, movable end 481, insertion end 482, deflation pipe 49, deflation channel 491, air pipe mounting seat 492, connector 493, airway 494, plug device for dredging device 5, plug connecting pipe 50, air intake Connecting portion 51, inner convex ring 511, accommodating groove 512, internal thread 513, anti-slip convex rib 514, flexible tube portion 52, bladder mounting portion 53, inner wall abutment section 531, threaded fixing section 532, bladder supporting section 534, reinforcing rib 535, bladder 54, bladder mounting end 541, bladder air outlet end 542, mounting convex ring 543, nut 55, stop groove 551, washer 56, stop protrusion 561, exhaust channel 57, spring 58, and air intake check valve 61. DETAILED DESCRIPTION

[0045] The present invention will be further described below in conjunction with specific embodiments:

[0046] It should be noted that the structures, proportions, sizes, etc. drawn 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 limiting conditions for the implementation of this application, so they have no substantial technical significance. Any structural modification, change in proportional relationship, or adjustment of size, without affecting the effects and purposes 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. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of this application without substantial change in the technical content.

[0047] 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 may be indirectly connected, disposed, or mounted to the other element via an intervening element.

[0048] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0049] Embodiment 1:

[0050] This embodiment provides a dredging device, in particular a dredging device for dredging toilets or sewer pipes, such as Figure 1 and Figure 2 As shown, the clearing tool at least includes an air pumping device 1, an air storage device 2, a pressure display device 3, an air release control device 4 and a plugging device 5. The air pumping device 1 is an air pumping device for the clearing tool. The air storage device 2 is installed on the air pumping device 1 and has an air storage cylinder 21 for storing gas from the air pumping device 1.

[0051] <Inflator device>

[0052] The pumping device 1 is installed on the gas storage device 2 of the dredge and is used to pump gas into the gas storage cylinder 21. Figure 3 As shown, the inflating device 1 comprises 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 main mounting seat 14, 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, the main mounting seat 14, the deflation mounting seat 15 and the pressure mounting seat 16 are all integrally formed of plastic. Compared with the previous method in which the pump 11 is separately inserted on the base 14 through a sealing ring, this embodiment removes the sealing structure here, improves the sealing performance of the product, and reduces the risk of air leakage when the pump device is inflated.

[0053] like Figure 3-Figure 4 As shown, the pump 11 is hollow and contains a pumping cavity 111. One end of the pumping rod 12 is movably disposed in the pumping cavity 111, and the other end extends out of the pump 11 and is provided with a hand-held portion 13. The main mounting seat 14 is located at the bottom of the pump 11 and is used to mount the air storage cylinder 21. It is hollow and contains an air inlet cavity 141. The main piston 10 is movably disposed in the air inlet cavity 141. In this embodiment, the axis of the pumping cavity 111 is coaxial with the axis of the air inlet cavity 141.

[0054] The main mounting seat 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 cavity 141. A partition 112 is provided between the air intake cavity 141 and the air pumping cavity 111. The air intake check valve 61 is installed on the partition 112. The gas in the air pumping cavity 141 opens the air intake check valve 61 and enters the air intake cavity 141. The inner side of the outer annular wall 143 is provided with a mounting portion for mounting the gas cylinder 21. In this embodiment, the mounting portion is an internal thread, and the gas cylinder 21 is provided with an external thread matching the internal thread. The gas cylinder 21 and the main mounting seat 14 are connected by threads. In actual situations, the mounting portion can also be a buckle structure, and the buckle connection is adopted accordingly. A connecting cavity 144 is formed between the inner annular wall 142 and the outer annular wall 143, and the air inlet cavity 141 is connected to the connecting cavity 144. During operation, the gas from the pumping cavity 111 enters the air inlet cavity 141 through the air inlet one-way valve 61 when the air inlet one-way valve 61 is opened, and then enters the connecting cavity 144 (i.e., enters the air inlet cavity 21) through the gap between the air inlet cavity 141 and the main piston 10. In this process, the main piston 10 moves under the action of the high-pressure gas.

[0055] An outer wall of one side of the air pump 11 is recessed inward near one end of the air inlet chamber, and is surrounded to form a cylindrical deflation mounting seat 15, and a deflation chamber 151 connected to the air inlet chamber 141 is formed in the deflation mounting seat 15. The end of the deflation control device 4 is arranged on the deflation mounting seat 15, and the deflation mounting seat 15 and the air inlet chamber 141 are connected to form a deflation port 152. When the deflation control device 4 is opened, the air inlet chamber 141 is connected to the outside atmosphere, and the gas in the air inlet chamber 141 can enter the deflation chamber 151 through the deflation port 152, and be discharged to the outside through the deflation control device 4, forming a low pressure.

[0056] A pressure chamber 161 is formed in the pressure mounting seat 16, and the end of the pressure display device 3 is arranged 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 air pressure of the gas in the gas cylinder 21 and display the current air pressure value.

[0057] 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.

[0058] The end cap 17 is installed at the end of the 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 pump rod 12 to pass through, and there is a gap between the inner wall of the through hole 173 and the pump rod 12 for gas to enter. When inflating, the external gas enters the pumping cavity 111 through the gap. The inner wall of the outer ring portion 172 is formed with a connecting portion connected to the pump 11. In this embodiment, the connecting portion is an internal thread. Correspondingly, the top of the pump 11 is formed with an external thread. The pump 11 and the end cap 17 are connected by a thread. In actual situations, the mounting portion can also be a buckle or other structure, and a buckle connection is correspondingly adopted, or glue is directly used for bonding.

[0059] The outer shell 18 is sleeved on the outer circumference of the air pump 11, and one end of the outer 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 to say, the main mounting seat 14 and the end cover 17 clamp the outer shell 18 therebetween. Compared with the method of fixing the left and right shells by screws in the prior art, the installation structure is greatly simplified and the installation efficiency is improved.

[0060] The pumping rod 12 has 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 cover 17, so that the end cover 17 can limit the pumping piston 122 in 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 hole 125 connecting the inside of the rod body 121 and the pumping cavity 111 is provided at one end close to the pumping piston 122, and the end away from the pumping piston 122 is connected to the outside, that is, the inside of the rod body 121 is connected to the pumping cavity 111, which saves people effort when pulling the pumping rod 12 back and forth.

[0061] The other end of the rod body 121 extends out of the pump 11 and is provided with a hand-held portion 13, such as Figure 6 As shown, the hand-held portion 13 includes a handle 132 for a person to hold and a fixing seat 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 seat 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 seat 131. A limiting block 123 cooperating 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.

[0062] <Gas storage device>

[0063] like Figure 7 As shown, 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 a hollow cylindrical structure, one end of which forms a gas storage mounting end 211 mounted to the main mounting seat 14, and the other end is provided with a gas outlet 212 to form a gas release end. The middle part of the gas storage cylinder 21 has a gas outlet pipe 22, and the gas outlet pipe 22 is provided with a gas outlet cavity 23 connected to the outside, and a gas storage cavity 24 is formed between the gas outlet pipe 22 and the inner wall of the gas storage cylinder 21. In this embodiment, the gas storage cylinder 21 is a steel structure, and the gas storage cylinder 21 and the gas outlet pipe 22 are separately arranged. The bottom of the gas outlet pipe 22 is installed at the gas outlet 212 through the gas outlet mounting seat 221 and the sealing gasket. At the same time, a gas outlet nozzle 25 is fixedly installed at the gas outlet 212, and the outer end of the gas outlet nozzle 25 is provided with a thread for connecting with the plug device 5.

[0064] 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 annular wall 143 of the main mounting seat 14. The gas storage mounting end 211 is connected to the outer annular wall 143 through threads, and a sealing ring is provided at the top of the connecting cavity 144 formed between the outer annular wall 143 and the inner annular 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 sleeved 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.

[0065] 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.

[0066] <Pressure display device>

[0067] like Figure 8 and Fig. 9As shown, the pressure display device 3 is installed on the pressure mounting seat 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 seat 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.

[0068] <Air Release Control Device>

[0069] 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 deflation valve 42 to open. The deflation valve 42 is mounted on the deflation mounting seat 15, and 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. Specifically, as Fig.10 and Fig.11 As shown, the deflation valve 42 comprises 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 arranged between the valve body 44 and the deflation cavity 151. An outer rib 443 is extended from the outer end of the valve body 44 and can be blocked on the outer edge of the deflation mounting seat 15. An inner rib 444 is extended inward from the inner end of the valve body 44 and forms a valve core mounting port for mounting the valve core. The valve core 45 is movably arranged 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.

[0070] The valve body 44 is provided with a valve cavity 442. The valve stem 48 is bent, and the lower end forms an insertion end 482 which can be inserted into the valve cavity 442. The outer periphery of the insertion end 482 is protruded outward to form a plurality of convex strips, and a ventilation groove 483 is formed between adjacent convex strips. The valve core 45 has a guide rod portion 451 and a sealing portion 452. One end of the guide rod portion 451 extends into the valve cavity 442 and is embedded in the insertion end 482, and the other end extends out of the valve cavity 442 and forms a valve core sealing portion 452. The valve core sealing portion 452 is provided with a guide rod portion 451 and a sealing portion 452. A sealing member 46 is provided on one side of 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, which is installed between the valve stem 48 and the inner wall of the valve body 44, and is arranged between the valve core 45 and the valve stem 48, and is used to act on the valve stem 48. When the deflation valve 42 is closed, the valve core 45 is pushed into the valve cavity 442 under the action of the gas, and the elastic member 47 can help push the valve stem 48 and the deflation connecting rod 43 to reset the deflation button 41. The outer periphery of the guide rod portion 451 protrudes outward to form a plurality of convex strips, and a venting groove 453 for gas to pass through is formed between adjacent convex strips. The sealing member 46 can form a seal with the end face of the valve body 44 to close the venting groove 453 in the process of following the movement of the valve core 45. In actual situations, the elastic member 47 can also be eliminated, and the deflation button 41 can be reset by manually sliding it.

[0071] When the venting chamber 151 is under high pressure, the valve core sealing part 452 forms a surface seal with the end face of the valve body 44 through the sealing part 46, thereby closing the vent groove 453; when it is necessary to deflate, the valve core 45 is pushed inward under the action of external force, and after the surface seal between the valve core sealing part 452 and the end face of the valve body 44 is released, the gas in the venting chamber 151 can be discharged through the vent groove 453. Alternatively, the sealing part 46 is 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 effects. In order to allow the gas to enter the vent groove 453 from the end where the valve core sealing part 452 is located, the outer diameter of the sealing part 26 and the valve core sealing part 452 is smaller than the inner diameter of the venting chamber 151, that is, a gap is formed between the outer periphery of the sealing part 26 and the valve core sealing part 452 and the inner wall of the venting chamber 141.

[0072] In this embodiment, the axis of the deflation chamber 151 is inclined to the axis of the air inlet chamber 141 (air storage chamber 24) or the air pumping chamber 111 (that is, the deflation mounting seat 15 is inclined and arranged on one side of the air pump 11), and the deflation connecting rod 43 is arranged vertically (arranged in parallel with 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, and 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 prevents the valve stem 48 from separating from the deflation connecting rod 43 on the other hand.

[0073] like Fig.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 slides downward accordingly, driving the valve stem 48 to push the valve core 45 downward to the right (as shown in FIG. Fig.11 The gas in the air inlet chamber 141 can enter the air release chamber 151 through the air release port 152, 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), and then be discharged to the outside along the gap between the air release button 41 and the housing 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 instantly rushes out from the air outlet pipe to clear the blockage.

[0074] <Plug device>

[0075] like Fig.12 and Fig.13 As shown, the plug device 5 comprises: a plug connection pipe 50, a bladder 54, a nut 55 and a washer 56. The plug connection pipe 50 is used to connect the gas outlet end of the gas storage device and the bladder 54. Fig.14 As shown, the plug connection pipe 50 includes an air inlet connection portion 51, a flexible tube portion 52 and a bladder mounting portion 53, wherein the air inlet connection portion 51 is used to connect the air outlet end (i.e., the air outlet nozzle 25, both of which are fixed by threads) of the air storage device 2, and the bladder mounting portion 53 is used to install the bladder mounting end 541 of the bladder 54, and the flexible tube portion 52 connects the air inlet connection portion 51 and the bladder mounting portion 53, and the flexible tube portion 52 is relatively soft and can be deformed and bent under the action of external force. The nut 55 is sleeved on the outside of the bladder mounting portion 53, and is used to fix the bladder 54 on the bladder mounting portion 53. The washer 56 is padded between the bladder 54 and the nut 55.

[0076] The air inlet connection portion 51, the flexible tube portion 52 and the bladder mounting portion 53 are integrally formed, and an exhaust passage 57 is arranged inside. The bladder 54 is hollow and has a bladder mounting end 541 with a mounting hole and a bladder outlet end 542. The bladder mounting end 541 is mounted on the bladder mounting portion 53, and the bladder outlet end 542 is provided with an outlet 5421. The gas from the outlet nozzle 25 enters the bladder 54 through the exhaust passage 57 and is finally discharged from the outlet of the bladder 54.

[0077] Specifically, the bladder mounting portion 53 includes an inner wall abutting section 531 and a threaded fixing section 532. The inner wall abutting section 531 is used to abut against the inner wall of the bladder mounting end 541, and the threaded fixing section 532 is used to install the nut 55. The inner wall abutting section 531 is an annular convex ring or a plurality of convex blocks distributed circumferentially, such as Figure 4 As shown, the annular convex ring is used to cooperate with the nut 55 to position the bladder mounting end 541 between the two. The bladder mounting portion 53 also includes a bladder support section 534, which is located on the side of the inner wall abutment section 531 away from the threaded fixing section 532. The bladder support section 534 is circumferentially provided with a plurality of reinforcing ribs 535 connected to the inner wall abutment section 531. The bladder support section 534 is in the shape of a hollow cylinder and is inserted into the bladder 54. It can be used to support the bladder 54 to prevent the bladder 54 from being flattened and unable to work normally.

[0078] like Fig.15 As shown, the outer diameter D1 of the air intake connection part 51 is less than the outer diameter D2 of the threaded fixing section 532 and less than the outer diameter D3 of the inner wall abutting section 531. Since D1 is less than D2 and less than D3, during installation, the nut 55 passes through the end where the air intake connection part 51 is located, and is inserted into the threaded fixing section 532 along the flexible tube part 52 for fixing, and the bladder 54 is fixed on the inner wall abutting section 531.

[0079] The inner side of the air inlet connection part 51 is provided with an internal thread 513 for fixed connection with the air outlet nozzle 25, and the outer side is provided with a clamping structure, which can be a polygonal tool clamping structure or a plurality of anti-slip ribs 514. The present embodiment preferably has anti-slip ribs 514, which are provided to facilitate the user to hold the air inlet connection part 51 and rotate the air inlet connection part 51, so as to fix the air inlet connection part 51 and the air outlet end of the air storage device.

[0080] An inner convex ring 511 protruding toward the other end is also provided inside the end where the air intake connection part 51 is connected to the flexible tube part 52, and a receiving groove 512 is formed between the inner convex ring 511 and the side wall of the air intake connection part 51. The receiving groove 512 can be used for the port of the air outlet end of the air storage device to be inserted, so that the inner convex ring 511 is embedded in the air outlet end. On the one hand, it can strengthen the connection between the air intake connection part 51 and the air outlet end of the air storage device, and on the other hand, it can also strengthen the sealing between the two.

[0081] In this embodiment, the air intake connection part 51, the flexible tube part 52 and the bladder mounting part 53 are all injection molded by flexible materials, and the flexible material can be rubber or plastic, preferably PP material, which has certain strength and flexibility, and its flexibility can ensure that the flexible tube part 52 can be bent and deformed, and adapt to different shapes of pipelines to be cleared, and its strength can ensure the connection reliability of the air intake connection part 51 and the bladder mounting part 53. In actual situations, the air intake connection part 51 and the bladder mounting part 53 can also be made of hard materials and are secondary injection molded with the flexible tube part 52, which can further improve the connection reliability of the air intake connection part 51 and the bladder mounting part 53, especially the size of the internal thread 513 of the air intake connection part 51 can be ensured, thereby improving the sealing of the connection.

[0082] like Fig.15 As shown, the bladder mounting end 541 extends outward (ie, toward the end where the flexible tube portion 52 is located) with a mounting protruding ring 543, and the gasket 56 is sleeved on the outer circumference of the mounting protruding ring 543. Fig.16 and Fig.17 As shown, a plurality of stop protrusions 561 are provided on one side of the washer 56 close to the nut 55, and a plurality of stop grooves 551 are correspondingly provided on the nut 55. When the nut 55 is installed on the threaded fixing section 532, the stop protrusions 561 are inserted into the stop grooves 551, thereby strengthening the connection between the nut 55 and the washer 56 and firmly attaching the washer 56 to the bladder mounting end 541.

[0083] Embodiment 2:

[0084] like Figure 18-Figure 20 As shown, the difference between this embodiment and the above-mentioned embodiment 1 is that the axis L1 of the inflation chamber 111 and the axis L2 of the air intake chamber 141 are not colinear, but are arranged in parallel with each other, that is, L1 and L2 are arranged eccentrically. At this time, the air intake check valve 61 is also offset by a certain distance, so that a relatively abundant space is formed on one side of the air pump 11 (the left side in the figure), and the pressure mounting seat 16 and the deflation mounting seat 15 can be formed on the same side of the air pump 11, so that the deflation control device 4 and the pressure display device 3 can be placed on the same side of the inflation chamber 111. And at this time, since the installation space is abundant, the deflation mounting seat 15 does not need to be arranged obliquely with the air pump 11, and can be directly as shown in FIG. Fig. 20 The vertical arrangement shown is sufficient, and a venting port 152 connected to the air inlet cavity 141 is provided at the bottom of the venting mounting seat 15 .

[0085] Embodiment 3:

[0086] like Figure 21-22As shown, in this embodiment, on the basis of the above-mentioned embodiment 1, a bushing 145 is further provided on the inner wall of the air intake chamber 141, and the main piston 10 is movably arranged in the bushing 145. When the air intake chamber 141 and the inflation chamber 111 are arranged coaxially, in order to allow the deflation control device 4 and the pressure display device 3 to have sufficient installation space, the size of the air intake chamber 141 can be enlarged, and an annular bushing 145 (with high inner wall precision) can be provided on the inner wall of the air intake chamber 141, which is beneficial to increase the sliding stability and strength between the main piston 10 and the main piston 10.

[0087] Embodiment 4:

[0088] In this embodiment, based on the above-mentioned embodiment 1, the deflation control device 4 has a different installation structure. Specifically, Fig.23 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 fixedly installed to the deflation mounting portion 113 and the deflation mounting seat 15 through sealing rings respectively.

[0089] The deflation connecting rod structure is eliminated in this embodiment. 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, so that the gas in the air inlet cavity 141 enters the deflation cavity 151 from the deflation port 152, and then enters the installation cavity 114 along the deflation channel 491 of the deflation pipe 49, and then enters the space between the housing 18 and the pump 11 along the gap between the sealing member 46 and the valve body 44, the gap between the valve core 45 and the valve body 44 (venting groove 453), and the gap between the valve stem 48 and the valve body 44 (venting groove 483), and then is discharged to the outside along the gap between the deflation button 41 and the housing 18. The deflation pipe 49 can be made of soft or hard material.

[0090] Embodiment 5:

[0091] This embodiment is based on the above-mentioned embodiment 4, and the installation structure of the vent pipe 49 is slightly different. Specifically, Fig.24As shown, a trachea mounting seat 492 for mounting a vent pipe 49 is mounted on the vent mounting seat 15, a connector 493 extending into the vent channel 491 is formed on the trachea mounting seat 492, and an airway 494 for connecting the vent channel 491 with the vent cavity 151 is opened in the middle of the trachea mounting seat 492. The deflation mounting portion 113 is formed with a plug that can be inserted into the deflation channel 491 at one end facing the deflation pipe 49. When the deflation button 41 moves, the valve core 45 is directly driven by the valve stem 48 to move and open the deflation valve 42, so that the gas in the air inlet chamber 141 enters the deflation chamber 151 from the deflation port 152, and then enters the mounting chamber 114 along the air channel 494 and the deflation channel 191, and then enters 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 is discharged to the outside along the gap between the deflation button 41 and the outer shell 18.

[0092] Embodiment 6:

[0093] This embodiment is based on the above embodiments 1-5. Fig.25 As shown, a spring 58 is provided in the exhaust passage 57 inside the flexible tube portion 52 to facilitate the flexible tube portion 52 to return to its original state.

[0094] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope 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 protection scope of the present invention.

Claims

1. A dredging device, characterized in that: include: Pumping device; A gas storage device, installed on the gas pumping device, having a gas storage cylinder for storing gas from the gas pumping device; A deflation control device, used for releasing the gas in the gas storage cylinder; as well as A plugging device is installed at the gas release end of the gas storage device and includes: A plug connection pipe, comprising an air inlet connection portion, a flexible pipe portion and a bladder mounting portion formed in one piece, wherein the air inlet connection portion is used to connect to the air outlet end of the air storage device; The bladder is provided with a bladder mounting end with a mounting hole and a bladder air outlet end, and the bladder mounting end is mounted on the bladder mounting portion of the plug connecting pipe.

2. A dredging device according to claim 1, characterized in that: in, The plugging device also includes a nut for fixing the bladder on the bladder mounting portion; The bladder mounting portion comprises: An inner wall abutting section, used for abutting against the inner wall of the bladder mounting end; and Threaded fixing section for mounting the nut.

3. A dredging device according to claim 2, characterized in that: in, Also includes a washer, disposed between the bladder and the nut; The mounting end of the bladder is provided with a mounting convex ring extending outwardly, and the gasket is sleeved on the mounting convex ring; A plurality of stop protrusions are arranged on one side of the washer close to the nut, and a plurality of stop grooves are correspondingly arranged on the nut.

4. A dredging device according to claim 1, characterized in that: in, The air inlet connection portion is provided with an internal thread on the inner side and a clamping structure on the outer side; The air intake connection portion is also provided with an inner convex ring, and a receiving groove is formed between the inner convex ring and its side wall.

5. The dredging device according to claim 1, characterized in that: in, The air intake connection part, the flexible tube part and the bladder installation part are all injection-molded by flexible materials; Alternatively, the air intake connection portion and the bladder mounting portion are made of hard material and are secondary injection molded with the flexible tube portion.

6. A dredging device according to any one of claims 1 to 5, Features: Wherein, the pumping device comprises: An air pump, comprising an air pump 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; as well as A main mounting seat, used for mounting the gas reservoir; The main mounting seat and the air pump are integrally formed.

7. A dredging device according to claim 6, characterized in that: in, The axis of the pumping chamber is coaxially arranged with the axis of the air storage cylinder or is parallel to each other.

8. The dredging device according to claim 6, characterized in that: The pumping device also has: An end cap is mounted on the end of the pump away from the main mounting seat. The outer shell is sleeved on the outer circumference 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, and the inner wall of the outer ring portion is formed with a connecting portion connected to the pump. One end of the shell abuts against the main mounting seat, and the other end of the shell abuts against the outer ring portion.

9. A dredging device according to claim 6, characterized in that: in, The inflation device also has an inclined deflation mounting seat for mounting the deflation control device. The deflation mounting seat is integrally formed with the air pump, and a deflation cavity is formed in the deflation mounting seat. The deflation mounting seat is provided with a deflation port that connects the deflation cavity with the air pump.

10. A dredging device according to claim 9, characterized in that: The deflation control device comprises: Deflate button, A deflation valve is mounted on the deflation mounting seat. The deflation connecting rod links the deflation button and the deflation valve. Wherein, the air release valve comprises: A valve body, disposed in the degassing cavity and having a valve cavity; A valve core having a guide rod portion extending into the valve cavity and a valve core sealing portion arranged in the air release cavity, wherein the outer periphery of the guide rod portion or the inner wall of the valve cavity is provided with at least one venting groove for gas to pass through; and A sealing member is installed on the valve core sealing portion or the end surface of the valve body, When the air release cavity is under high pressure, the valve core sealing part forms a surface seal with the end surface of the valve body through the sealing member, thereby closing the venting groove; When deflation is required, the valve core is pushed inwardly under the action of external force, and the gas in the deflation cavity is discharged through the venting groove.

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