CN206439230U - A kind of convenient maintenance and can be to the multipurpose pump of inlet pipeline automatic water filling - Google Patents

Abstract

The utility model relates to the field of water pumps, in particular to a multipurpose pump which is convenient for maintenance and can automatically inject water into a water inlet pipeline. The technical solution is: a multi-purpose pump that is convenient for maintenance and can automatically inject water into the water inlet pipeline, including a motor, the motor is connected to a pump body, the pump body includes a water inlet and a water outlet, the water inlet is connected to a water inlet pipeline, and a water outlet The multi-purpose check valve and the water outlet pipeline are connected in sequence. The multi-purpose check valve includes a valve body, and the valve body is hinged with a valve plate for preventing liquid from flowing backward in the water outlet pipeline; the side of the multi-purpose check valve is set There is an opening, and the opening is connected with a valve cover plate by bolts. There is a through hole on the valve cover plate, and the through hole is connected with a water injection pipe. The other end of the water injection pipe is connected to the water inlet pipeline. , A water injection ball valve is installed on the water injection pipe. The utility model provides a multi-purpose pump which discharges the remaining water in the water outlet pipeline to the water inlet pipeline, facilitates the maintenance of the check valve and the vacuum discharge of the water inlet pipeline.

Description

A multi-purpose pump that is convenient for maintenance and can automatically fill the water inlet pipeline

technical field

The utility model relates to the field of water pumps, in particular to a multipurpose pump which is convenient for maintenance and can automatically inject water into a water inlet pipeline.

Background technique

A pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsions, suspoemulsions and liquid metals, etc., and can also transport liquid and gas mixtures. and liquids containing suspended solids. The technical parameters of pump performance include flow rate, suction lift, lift, shaft power, water power, efficiency, etc.; according to different working principles, it can be divided into volumetric pumps, vane pumps and other types. Positive displacement pumps use the change in the volume of their working chambers to transfer energy; vane pumps use the interaction between rotating blades and water to transfer energy, and there are centrifugal pumps, axial flow pumps and mixed flow pumps.

The utility model patent with the patent application number CN201320380919.9 discloses a multi-stage small submersible electric pump with a check valve, which includes a water outlet, a top cap, a main shaft, an impeller, a water divider, guide vanes, a water inlet connection frame A, Water inlet connection frame B, oil cylinder, rotor, stator, pump barrel, base; one end of the top cap is connected to the water outlet, and the other end is connected to the water diversion; guide vanes and impellers are installed on the main shaft in sequence , the rotor; the upper end of the impeller is provided with guide vanes; the guide vanes include final guide vanes and guide vanes A; the final guide vanes are located at the lower end of the top hat; the impellers include impellers A, impeller B; the lower end of the impeller A is provided with a water diversion; the water inlet connector A is installed on the lower end of the impeller B, and one end of the water inlet connector A is connected to the water diversion; the oil cylinder is arranged at the inlet between the water connection frame B and the pump barrel; the rotor and stator are set inside the pump barrel, and the stator is placed on the rotor; the pump barrel is installed on the base; it also includes a check valve, which is set on Between the water outlet and the top cap, and embedded in the seam of the top cap, the top cap and the water outlet are connected with screws; the check valve includes a sealing film, nuts, screws, gaskets, and a closing plate; the screw Pass through the gasket, the closing plate, and the closing membrane in turn, and fix them with nuts. Beneficial effects of the submersible electric pump: the structural design of the check valve is adopted, which eliminates the pressure of the high-energy water flow in the water delivery pipe on the final guide vane, and avoids the serious consequences caused by the deformation of the final guide vane; after the second The start-up of the electric pump saves the energy consumed during the time it takes to boost the flow of water that fills the pipe.

However, the check valve of the above-mentioned electric pump of Qian Shuji can only prevent the backflow of liquid, and has a single function.

The traditional check valve cannot discharge the residual water in the water outlet pipeline, which makes the operation very inconvenient and heavy workload during maintenance. Before using the pump, it is necessary to evacuate the water inlet pipeline, and when the pump is used frequently, the auxiliary working time will be increased, which is not only inconvenient to operate, but also time-consuming and laborious. At present, there is still no method for simultaneously solving the problem that the remaining water in the outlet pipeline cannot be removed and the procedure of vacuuming the inlet pipeline is complicated.

Utility model content

The utility model overcomes the deficiencies of the prior art and provides a multi-purpose pump which discharges the remaining water in the water outlet pipeline to the water inlet pipeline, facilitates the check valve maintenance and the vacuum discharge of the water inlet pipeline.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A multi-purpose pump that is convenient for maintenance and can automatically inject water into the water inlet pipeline. The check valve and the water outlet pipeline, the multi-purpose check valve includes a valve body, and the valve body is hinged with a valve plate for preventing liquid from flowing backward in the water outlet pipeline; the side of the multi-purpose check valve is provided with an opening, and the opening is The valve cover plate is connected by bolts. There is a through hole on the valve cover plate. The through hole is connected to the water injection pipe. The other end of the water injection pipe is connected to the water inlet pipeline. There is a water injection ball valve.

As a preferred solution of the present utility model, a slag discharge mechanism is installed on the water injection pipe, and the slag discharge mechanism includes a filter cavity, and an inclined filter screen is arranged in the filter cavity, and one end of the filter screen is connected to the cavity wall of the filter cavity to filter The other end of the net is free, and the free end of the filter chamber close to the filter net is provided with a sediment chamber, and a cover plate is connected to the sediment chamber.

As a preferred solution of the present invention, one end of the cover plate is hinged to the sediment chamber, and the other end of the cover plate is connected to the sediment chamber by screws.

As a preferred solution of the utility model, the side of the sediment chamber close to the filter chamber is provided with a slag baffle plate, a gap is left between the slag baffle plate and the filter screen, and an arc surface is provided at the top corner of the sediment chamber.

As a preferred solution of the present utility model, the water injection pipe is also connected with a drain pipe, and a drain ball valve is installed on the drain pipe.

As a preferred solution of the present utility model, a bearing bush is installed at the joint between the valve plate and the valve body.

Compared with the prior art, the beneficial effects of the utility model are:

1. The multi-purpose check valve of the present invention is connected with a water injection pipe, and the other end of the water injection pipe is connected to the water inlet pipeline. In this way, the residual water in the water outlet pipeline can be discharged into the water inlet pipeline, which not only reduces the operational difficulty of checking and repairing the multipurpose check valve, but also avoids the trouble of vacuuming the water inlet pipeline. The remaining water in the water outlet pipeline is effectively used, saving resources.

2. The slag discharge mechanism includes a filter cavity, and an inclined filter net is arranged in the filter cavity. When the remaining water enters the water injection pipe, the debris is blocked by the filter screen and enters the sediment chamber from the inclined surface of the filter screen to be stored, thus avoiding the blockage of the water injection pipe caused by the debris in the water or the impeller damage caused by the debris entering the pump body Condition.

3. One end of the cover plate is hinged with the sediment chamber, and the other end of the cover plate is connected with the sediment chamber by screws, so that it is convenient to open the cover plate and take out the sundries in the sediment chamber.

4. A slag baffle is provided on the side of the sediment chamber close to the filter chamber, and there is a gap between the slag baffle and the filter screen. The debris in the water enters the sediment chamber from the gap between the slag retaining plate and the filter screen, and the slag retaining plate can prevent the debris from being washed out of the sediment chamber.

5. There is also a drainage pipe connected to the water injection pipe, which can discharge excess water in the water outlet pipeline, which is convenient for the maintenance of the multi-purpose check valve.

6. A bearing bush is installed at the connection between the valve plate and the valve body, and the rotation flexibility of the valve plate is enhanced to avoid the situation that the valve plate is rusted and stuck after long-term use and cannot work.

Description of drawings

Fig. 1 is the structural representation of the utility model when the valve plate is closed;

Fig. 2 is a structural representation of the utility model when the valve plate is opened;

Fig. 3 is a structural schematic diagram of a multipurpose check valve;

Fig. 4 is a structural schematic diagram of the slag discharge mechanism.

In the figure, 1- motor, 2- pump body, 3- water inlet pipe, 4- multi-purpose check valve, 5- water outlet pipe, 6- water injection pipe, 7- slag discharge mechanism, 8- drain pipe, 41- Valve body, 42-valve plate, 43-valve cover plate, 44-bearing bush, 61-water injection ball valve, 71-filter chamber, 72-filter screen, 73-sediment chamber, 74-cover plate, 75-slag retaining plate, 81 - Drain ball valve.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Embodiment one

A multi-purpose pump that is convenient for maintenance and can automatically inject water into the water inlet pipeline, including a motor 1, the motor 1 is connected to a pump body 2, the pump body 2 includes a water inlet and a water outlet, the water inlet is connected to a water inlet pipeline 3, and the water outlet The multi-purpose check valve 4 and the water outlet pipeline 5 are connected in sequence, the multi-purpose check valve 4 includes a valve body 41, and the valve body 41 is hinged with a valve plate 42 for preventing liquid from flowing backward in the water outlet pipeline 5; it is characterized in that , the side of the multipurpose check valve 4 is provided with an opening, the opening is connected with a valve cover 43 by bolts, the valve cover 43 is provided with a through hole, and the through hole is connected with the water injection pipe 6, and the other part of the water injection pipe 6 One end is connected to the water inlet pipeline 3, the valve body 41, the water injection pipe 6, and the water inlet pipeline 3 are connected, and the water injection pipe 6 is equipped with a water injection ball valve 61.

The multipurpose check valve 4 of the utility model is connected with a water injection pipe 6 , and the other end of the water injection pipe 6 is connected with the water inlet pipeline 3 . In this way, the remaining water in the water outlet pipeline 5 can be discharged into the water inlet pipeline 3, which not only reduces the operational difficulty of overhauling the multipurpose check valve 4, but also avoids the trouble of vacuuming the water inlet pipeline 3. The remaining water in the water outlet pipeline 5 is effectively utilized, saving resources.

Embodiment two

On the basis of Embodiment 1, a slag discharge mechanism 7 is installed on the water injection pipe 6, and the slag discharge mechanism 7 includes a filter cavity 71, and an inclined filter screen 72 is arranged in the filter cavity 71, and one end of the filter screen 72 is connected to the filter On the cavity wall of the cavity 71 , the other end of the filter screen 72 is free, and the free end of the filter cavity 71 close to the filter screen 72 is provided with a sediment cavity 73 , and a cover plate 74 is connected to the sediment cavity 73 . After the remaining water enters the water injection pipe 6, the debris is blocked by the filter screen 72 and enters the sediment chamber 73 from the inclined surface of the filter screen 72 to be stored, thereby preventing the water injection pipe 6 from being blocked by the debris in the water or entering the pump. Body 2 causes damage to the impeller.

One end of the cover plate 74 is hinged with the sediment chamber 73, and the other end of the cover plate 74 is connected with the sediment chamber 73 by screws, so that the cover plate 74 can be opened conveniently to take out the sundries in the sediment chamber 73. Described sediment chamber 73 is provided with slag retainer 75 near the side of filter chamber 71, leaves gap between slag retainer 75 and filter screen 72, and the top corner in the sediment chamber 73 is provided with circular arc surface. Impurities in the water enter the sediment chamber 73 from the gap between the slag retaining plate 75 and the filter screen 72 , and the slag retaining plate 75 can prevent the foreign matter from being washed out from the sediment chamber 73 again.

Embodiment three

A multi-purpose pump that is convenient for maintenance and can automatically inject water into the water inlet pipeline, including a motor 1, the motor 1 is connected to a pump body 2, the pump body 2 includes a water inlet and a water outlet, the water inlet is connected to a water inlet pipeline 3, and the water outlet The multi-purpose check valve 4 and the water outlet pipeline 5 are connected in sequence, the multi-purpose check valve 4 includes a valve body 41, and the valve body 41 is hinged with a valve plate 42 for preventing liquid from flowing backward in the water outlet pipeline 5; it is characterized in that , the side of the multipurpose check valve 4 is provided with an opening, the opening is connected with a valve cover 43 by bolts, the valve cover 43 is provided with a through hole, and the through hole is connected with the water injection pipe 6, and the other part of the water injection pipe 6 One end is connected to the water inlet pipeline 3, the valve body 41, the water injection pipe 6, and the water inlet pipeline 3 are connected, and the water injection pipe 6 is equipped with a water injection ball valve 61.

The multipurpose check valve 4 of the utility model is connected with a water injection pipe 6 , and the other end of the water injection pipe 6 is connected with the water inlet pipeline 3 . In this way, the remaining water in the water outlet pipeline 5 can be discharged into the water inlet pipeline 3, which not only reduces the operational difficulty of overhauling the multipurpose check valve 4, but also avoids the trouble of vacuuming the water inlet pipeline 3. The remaining water in the water outlet pipeline 5 is effectively utilized, saving resources.

A slag discharge mechanism 7 is installed on the water injection pipe 6, and the slag discharge mechanism 7 includes a filter cavity 71. An inclined filter screen 72 is arranged in the filter cavity 71. One end of the filter screen 72 is connected to the cavity wall of the filter cavity 71 to filter The other end of the net 72 is free, and the free end of the filter chamber 71 close to the filter screen 72 is provided with a sediment chamber 73 , and a cover plate 74 is connected to the sediment chamber 73 . After the remaining water enters the water injection pipe 6, the debris is blocked by the filter screen 72 and enters the sediment chamber 73 from the inclined surface of the filter screen 72 to be stored, thereby preventing the water injection pipe 6 from being blocked by the debris in the water or entering the pump. Body 2 causes damage to the impeller.

One end of the cover plate 74 is hinged with the sediment chamber 73, and the other end of the cover plate 74 is connected with the sediment chamber 73 by screws, so that the cover plate 74 can be opened conveniently to take out the sundries in the sediment chamber 73. The side of the sediment chamber 73 close to the filter chamber 71 is provided with a slag blocking plate 75 , there is a gap between the slag blocking plate 75 and the filter screen 72 , and the top corner of the sediment chamber 73 is provided with an arc surface. Impurities in the water enter the sediment chamber 73 from the gap between the slag retaining plate 75 and the filter screen 72 , and the slag retaining plate 75 can prevent the foreign matter from being washed out from the sediment chamber 73 again.

The water injection pipe 6 is also connected with a drain pipe 8 , and a drain ball valve 81 is installed on the drain pipe 8 . The drainage pipe 8 can discharge the redundant water in the water outlet pipeline 5, which is convenient for the maintenance work of the multipurpose check valve 4. A bearing bush 44 is installed at the connection between the valve plate 42 and the valve body 41, the rotation flexibility of the valve plate 42 is enhanced, and the situation that the valve plate 42 is rusted and stuck and unable to work after long-term use is avoided.

Claims (6)

1. a kind of convenient maintenance and the multipurpose pump of inlet pipeline automatic water filling, including motor (1), motor (1) can be connected with The pump housing (2), the pump housing (2) includes water inlet and delivery port, and water inlet is connected with inlet pipeline (3), and delivery port is connected with turn many Purposes check-valves (4) and outlet pipeline (5), Multi-purpose check valve (4) include being hinged with valve body (41), valve body (41) for preventing The valve plate (42) that only liquid flows backwards in outlet pipeline (5)；Characterized in that, the side of the Multi-purpose check valve (4) is set Have and valve cover plate (43) has been bolted at opening, opening, be provided with through hole on valve cover plate (43), through hole is connected with note Water pipe (6), the other end of water injection pipe (6) is connected on inlet pipeline (3), and valve body (41), water injection pipe (6), inlet pipeline (3) are even It is logical, water filling ball valve (61) is installed on water injection pipe (6).

2. a kind of convenient maintenance according to claim 1 and can be to the multipurpose pump of inlet pipeline automatic water filling, its feature It is, slagging device (7) is provided with the water injection pipe (6), and slagging device (7) is included in filter chamber (71), filter chamber (71) Inclined screen pack (72) is provided with, one end of screen pack (72) is connected in the cavity wall of filter chamber (71), screen pack (72) Another end dissociative, filter chamber (71) is provided with sediment chamber (73) close to one end that screen pack (72) dissociates, and sediment chamber connects on (73) It is connected to cover plate (74).

3. a kind of convenient maintenance according to claim 2 and can be to the multipurpose pump of inlet pipeline automatic water filling, its feature It is, one end and the sediment chamber (73) of the cover plate (74) are hinged, the other end and the sediment chamber (73) of cover plate (74) pass through screw Connection.

4. a kind of convenient maintenance according to Claims 2 or 3 and can be to the multipurpose pump of inlet pipeline automatic water filling, it is special Levy and be, the sediment chamber (73) is provided with slag trap (75), slag trap (75) and screen pack close to the side of filter chamber (71) (72) top corners left between in gap, sediment chamber (73) are provided with arc surface.

5. a kind of convenient maintenance according to claim 1 or 2 or 3 and can to the multipurpose pump of inlet pipeline automatic water filling, Drainage ball valve (81) is installed characterized in that, being also communicated with the water injection pipe (6) on drainpipe (8), drainpipe (8).

6. a kind of convenient maintenance according to claim 1 or 2 or 3 and can to the multipurpose pump of inlet pipeline automatic water filling, Characterized in that, the valve plate (42) and the junction of valve body (41) are provided with bearing shell (44).