Manual dredger

Abstract

The invention belongs to the technical field of dredgers, and particularly relates to a manual dredger. Comprising an air storage device, 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 containing 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 invention belongs to the technical field of dredgers, and in particular relates to a manual dredger. 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] In the above-mentioned prior patents, the pumping device and the gas storage device are connected and fixed by an independent mounting seat. The independent mounting seat is fixed to both the pump of the pumping device and the gas storage device. In order to ensure the sealing, corresponding seals need to be provided between the various components. The connection method using a separate mounting seat is not only complex in structure, but also inconvenient to install. Moreover, the more seals are used, the more likely they are to fail. The outer shell of the pumping device also needs to be installed by combining two half shells with screws. The installation structure is complex and inconvenient.

[0004] In addition, since the air pump and the air cylinder are coaxially arranged, the space between the air pump and the shell is limited. In order to install the deflation control device and the pressure display device, a mounting base with a larger diameter is required, and the diameter of the air cylinder of the air storage device and the shell of the air pump need to be increased, resulting in increased costs. In particular, the air cylinder is made of stainless steel, and the diameter increases, and more stainless steel is used; in addition, when the radius increases, in order to ensure the strength of the air cylinder, it is necessary to select a stainless steel material with a thicker wall thickness, which further increases the cost. Summary of the invention

[0005] The object of the present invention is to provide a manual dredger which has a simple and stable structure, a reasonable layout and can be quickly installed when in use.

[0006] The object of the present invention is achieved in that:

[0007] The present invention proposes a manual clearing device with the following characteristics, including an air storage device, having a main piston and an air cylinder, an air pumping device for inflating the air cylinder, and an air deflation control device for deflation of the air cylinder; wherein the air pumping device comprises: a main mounting seat, used to mount the air cylinder, comprising an air inlet chamber connected to the air cylinder, an air pump, which is provided with an air pumping chamber connected to the air inlet chamber, an air inlet one-way valve, mounted between the air pumping chamber and the air inlet 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 portion, and an air deflation mounting seat, comprising an air deflation chamber connected to the air inlet chamber, the air deflation control device being installed in the air deflation chamber, the main mounting seat, the air deflation mounting seat and the air pump being integrally formed, and the air deflation chamber is tiltedly arranged on one side of the air pump, so that the axis of the air deflation chamber is tiltedly arranged with the axis of the air pumping chamber, and the main piston is movably arranged in the air inlet chamber. The gas in the pumping chamber pushes open the intake check valve and enters the intake chamber, and then pushes the main piston to move toward the direction of the air reservoir.

[0008] The manual clearing device proposed in the present invention may also have such a feature, wherein the axis of the air pump 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 surrounds to form a cylindrical air deflation mounting seat, so that the air deflation chamber and the air inlet chamber are connected to form an air deflation port.

[0009] The inflation and deflation device of the dredge proposed in the present invention may also have such a feature, wherein the deflation control device has a deflation valve, which includes: a valve body, in which a valve cavity is arranged, a valve core, having 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, 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 manual dredge proposed in the present invention may also have such a feature, wherein the valve body is installed in the venting cavity, and the venting control device also has: a venting button for controlling the opening of the venting valve, a venting connecting rod, and a linkage between the venting button and the valve core. The venting valve also includes a valve stem, one end of which is connected to the venting connecting rod, and the other end is connected to the valve core. A movable groove is provided at one end of the venting connecting rod toward the valve stem, and the valve stem has a movable end extending into the movable groove, and the inner width of the movable groove is greater than the width of the movable end.

[0011] The manual 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, a valve body is fixedly installed in the mounting cavity, and the deflation control device further comprises: 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 comprises a valve stem, one end of which is connected to the deflation button, and the other end is connected to the valve core.

[0012] The manual clearing device proposed in the present invention may also have such a feature, wherein the two ends of the bleed pipe are fixedly installed on the bleed mounting seat and the bleed mounting part through sealing rings respectively; or, the two ends of the bleed pipe are fixedly installed on the bleed mounting seat and the bleed mounting part respectively through connecting heads, and sealing rings are respectively provided between the two connecting heads and the bleed mounting seat and the bleed mounting part, and an airway is provided in the connecting head for connecting the bleed channel and the bleed cavity.

[0013] The manual clearing device proposed in the present invention may also have such a feature, wherein 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 manual clearing device proposed in the present invention may also have such a feature, wherein the pumping rod comprises: a rod body, one end of which extends into the pumping cavity, and the other end of which extends out of the pump and is provided with a hand-held part, a pumping piston, which is formed at one end of the rod body located in the pumping cavity, and a sealing ring is provided between the end of the rod body and the interior of the pumping cavity; the rod body is hollow, and an air vent connecting the interior of the rod body and the pumping cavity is provided at the end close to the pumping piston, and the end away from the pumping piston is connected to the outside world.

[0015] The manual 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 pumping 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.

[0016] The manual clearing device proposed in the present invention may also have such a feature, wherein the air storage cylinder is in the shape of a hollow cylinder, one end of which forms an air storage mounting end mounted to the main mounting seat, and the other end is provided with an air outlet, on which an air outlet nozzle is mounted, and the middle part of the air storage cylinder is provided with an air outlet pipe, in which an air outlet cavity connected to the outside is opened, and an air storage cavity is formed between the air outlet pipe and the inner wall of the air storage cylinder; one end of the air outlet pipe is fixed on the air outlet and the air outlet nozzle, and the other end is provided with a rubber ring that cooperates with the main piston, and the main piston moves toward the rubber ring under the push of the gas from the inflation cavity and abuts against the rubber ring to isolate the connection between the air outlet cavity and the air storage cavity.

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

[0018] The manual unblocker proposed in the present invention has a simple structure and better sealing and stability because the main mounting seat, the deflation mounting seat and the air pump are integrally formed. It is also more convenient to install, and the air storage device can be directly installed on the air pump. At the same time, the axis of the deflation chamber and the axis of the air pump 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 unblocker 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 dredging device of the present invention.

[0020] Figure 2 It is a cross-sectional view of the dredge according to embodiment 1 of the present invention.

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

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

[0023] Figure 5 It is a schematic structural 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 present invention.

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

[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 invention.

[0027] Fig. 9 It is a schematic structural diagram of the inflation device of embodiment 1 of the invention.

[0028] Fig.10 It is a disassembled view of the installation structure of the pressure display device in Example 1 of the present invention.

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

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

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

[0032] The meaning of the symbols 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 member 46, elastic member 47, valve stem 48, movable end 481, insertion end 482, deflation pipe 49, deflation channel 491, trachea mounting seat 492, connector 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. 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.

[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 may be 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 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.

[0038] Embodiment 1:

[0039] This embodiment provides a manual dredger, in particular, a dredger for dredging toilets or sewer pipes, such as Figure 1 and Figure 2 As shown, the manual clearing device at least includes an air pumping device 1, an air storage device 2, a pressure display device 3 and an air release 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 release control device 4 is used to release the air cylinder 21.

[0040] <Inflator device>

[0041] like 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 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 5As shown, the air pump 11, the main mounting seat 14, the deflation mounting seat 15 and the pressure mounting seat 16 are all integrally formed. Compared with the prior art method in which the air 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 air pump is inflated.

[0042] 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.

[0043] 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 reservoir 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 gas until it is blocked on 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, and an 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 arranged 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, and 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, and 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, thereby 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 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.

[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 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] <Gas storage device>

[0052] 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 an air outlet 212. The middle part of the gas storage cylinder 21 has an air outlet pipe 22, and the air outlet pipe 22 is provided with an air outlet cavity 23 connected to the outside, and an air storage cavity 24 is formed between the air 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 air outlet pipe 22 are separately arranged. The bottom of the air outlet pipe 22 is installed at the air outlet 212 through the air outlet mounting seat 221 and the sealing gasket. At the same time, an air outlet nozzle 25 is fixedly installed at the air outlet 212, and the outer end of the air outlet nozzle is provided with a thread for connecting with the 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 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 (i.e., move toward the rubber ring 26) 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 tightly against the rubber ring 26, thereby closing the air inlet end of the air outlet pipe 22 and isolating the connection between the air outlet chamber 23 and the air storage chamber 24, 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 Fig. 9 As 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.

[0057] <Deflation Control Device>

[0058] like Figure 8 , Figure 10-11As 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.

[0059] A valve cavity 442 is provided in the valve body 44. The valve stem 48 is bent, and an insertion end 482 is formed at the lower end to be inserted into the valve cavity 442. The outer periphery of the insertion end 482 is protruded outward to form a plurality of convex strips, and a venting 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 is inserted into the valve cavity 442 and embedded in the insertion end 482 (that is, the insertion end 482 of the valve stem 48 is sleeved on the guide rod portion 451), and the other end is extended out of the valve cavity 442 and forms a valve core sealing portion. The valve core sealing part 452 is provided with a sealing member 46 on one side facing the guide rod part 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 part 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.

[0060] 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.

[0061] 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.

[0062] 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 is instantly released from the air outlet pipe to achieve high-pressure clearing.

[0063] Embodiment 2:

[0064] In this embodiment, based on the above-mentioned embodiment 1, the deflation control device 4 has a different installation structure. Specifically, Fig.12As 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.

[0065] In this embodiment, the deflation connecting rod structure is eliminated, and the outer end of the valve stem 48 of the deflation valve 42 is directly installed 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 191 of the deflation pipe 49, 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 (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 outer shell 18, and is connected to the outside. Among them, the deflation pipe 49 can be made of soft or hard material.

[0066] Embodiment 3:

[0067] In this embodiment, the installation structure of the vent pipe 49 is slightly different from that of the above-mentioned embodiment 2. Specifically, Fig.13 As shown, a trachea mounting seat 492 for mounting a venting pipe 49 is mounted on the venting mounting seat 15, a connector 493 extending into the venting passage 491 is formed on the trachea mounting seat 492, and an air passage 494 for connecting the venting passage 491 with the venting cavity 151 is formed in the middle of the connector 493 and the trachea mounting seat 492. A connector that can be inserted into the venting passage 491 is formed at one end of the venting mounting portion 113 facing the venting pipe 49, and a sealing ring is provided between the trachea mounting seat 492 and the venting mounting seat 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 airway 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.

[0069] 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 manual dredging device, characterized in that: include: The gas storage device comprises a main piston and a gas storage cylinder. an air pumping device, used to inflate the air cylinder, and A deflation control device, used for deflation of the air storage cylinder; Wherein, the pumping 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 pumping cavity connected to the air inlet cavity. An air intake check valve is installed between the air 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 chamber is obliquely arranged at one side of the air pump, and the main piston is movably arranged in the air intake chamber.

2. A manual dredging device according to claim 1, characterized in that: in, The axis of the pumping cavity is coaxially arranged 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. A manual dredging device 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 installed 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, and the sealing member can form a seal with the end surface of the valve body to close the ventilation groove while following the movement of the valve core.

4. A manual dredging device according to claim 3, characterized in that: in, The valve body is installed in the deflation cavity, and the deflation control device also has: The deflation button is 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 of which is connected to the valve core. A movable groove is formed 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 inner width of the movable groove is greater than the width of the movable end.

5. A manual dredging device according to claim 3, characterized in that: in, A deflation installation portion is also provided on the side of the air pump, and a mounting cavity is provided in the deflation installation portion. The valve body is fixedly installed in the mounting cavity. The deflation control device also has: The deflation button is 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 connecting the mounting cavity and the deflation cavity is provided in the deflation pipe; The deflation valve also 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.

6. A manual dredging device according to claim 5, 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.

7. A manual dredging device according to claim 1 or 2, characterized in that: in, 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.

8. A manual dredging device 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 part. An air-inflating piston is formed at one end of the rod body located in the air-inflating cavity, and a sealing ring is provided between the piston and the interior of the air-inflating cavity; The rod body is hollow, and an air vent connecting the interior of the rod body and the air pumping cavity is provided at one end close to the air pumping piston, while the end away from the air pumping piston is connected to the outside.

9. A manual dredging device according to claim 8, characterized in that: in, The handheld part is provided with a fixing seat fixed to the rod body, a plug hole 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 matching 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 insertion hole, and the limiting clamping block is inserted along the slot and clamped into the limiting hole.

10. A manual dredging tool according to claim 1 or 2, characterized in that: in, The gas storage cylinder is in the shape of a hollow cylinder, one end of which forms a gas storage installation end mounted on the main mounting seat, and the other end is provided with a gas outlet, on which a gas outlet nozzle is installed, and the middle part of the gas storage cylinder is provided with a gas outlet pipe, in which a gas outlet cavity connected to the outside is opened, and a gas storage cavity is formed between the gas outlet pipe and the inner wall of the gas storage cylinder; One end of the air outlet pipe is fixed to the air outlet and the air outlet nozzle, and the other end is sleeved with a rubber ring that cooperates with the main piston. The main piston moves toward the rubber ring under the push of the gas from the inflation chamber and abuts against the rubber ring to isolate the connection between the air outlet chamber and the air storage chamber.

Images