Water quantity control device for water supply pump
阅读说明:本技术 一种用于供水泵的水量控制装置 (Water quantity control device for water supply pump ) 是由 王伟权 杨振球 于 2020-07-14 设计创作,主要内容包括:本发明属于供水设备技术领域,具体涉及一种用于供水泵的水量控制装置,包括进水接口、出水接口和装置本体,装置本体内部设有通道,装置本体包括有限流部和减压部,限流部设置于进水接口一端,限流部包括有直线驱动机构,直线驱动机构设有活塞缸,活塞缸一端设有活塞盘,活塞盘设有密封环,装置本体设有通气孔,通道内壁粘接有环形弹性气囊,减压部设置于出水接口一端,减压部包括有筒状薄板和环形空腔,筒状薄板外壁设有限位滑板,环形空腔设有限位滑槽,限位滑板与限位滑槽之间设有复位弹簧,筒状薄板内部设有筛板,环形空腔内部设有回水管路,筒状薄板轴向两侧分别设有漏水孔。(The invention belongs to the technical field of water supply equipment, and particularly relates to a water quantity control device for a water supply pump, which comprises a water inlet interface, go out water interface and device body, the inside passageway that is equipped with of device body, the device body is including current-limiting part and pressure reduction portion, the current-limiting part sets up in interface one end of intaking, current-limiting part is including sharp actuating mechanism, sharp actuating mechanism is equipped with the piston cylinder, piston cylinder one end is equipped with the piston dish, the piston dish is equipped with the sealing ring, the device body is equipped with the air vent, the bonding of passageway inner wall has annular elastic air bag, the pressure reduction portion sets up in interface one end of leaving water, the pressure reduction portion is including tube-shape sheet metal and toroidal cavity, tube-shape sheet metal outer wall is equipped with spacing slide, toroidal cavity is equipped with spacing spout, be equipped with reset spring between spacing slide and the spacing spout, the inside sieve that is equipped with of.)
1. The utility model provides a water yield controlling means for working shaft, includes into water interface (11), play water interface (12) and device body (2), its characterized in that: the device body (2) is internally provided with a channel (21), the water inlet interface (11), the channel (21) and the water outlet interface (12) are communicated, the device body (2) comprises a flow limiting part and a pressure reducing part, wherein,
the flow limiting part is arranged at one end of the water inlet connector (11), the flow limiting part comprises a linear driving mechanism (31) arranged on the upper side of the device body (2), a piston cylinder (32) is arranged on one side of the linear driving mechanism (31), a piston disc (321) is arranged on the piston cylinder (32), a sealing ring matched with the piston cylinder (32) is arranged on the piston disc (321), the linear driving mechanism (31) is in transmission connection with the piston disc (321), an air vent (22) is arranged on one side, away from the piston disc, of the device body (2), the upper end of the air vent (22) penetrates through the device body (2) and is communicated with the piston cylinder (32), an annular elastic air bag (23) is bonded on the inner wall of the channel (21), and the lower end of the air vent (22) is communicated with;
the pressure reducing part is arranged at one end of the water outlet interface (12), the pressure reducing part comprises a cylindrical thin plate (41) connected with the inner wall of the channel (21) in a sliding manner and an annular cavity (24) axially arranged along the channel (21), a limiting sliding plate (411) is further arranged on one side, close to the water inlet interface (11), of the outer wall of the cylindrical thin plate (41), the annular cavity (24) is provided with a limiting sliding groove (241) matched with the limiting sliding plate (411) on one side close to the water inlet interface (11), a reset spring (412) is arranged between the limiting sliding plate (411) and the limiting sliding groove (241), a sieve plate (413) is arranged on one side, close to the water inlet interface (11), of the cylindrical thin plate (41), a plurality of uniformly distributed water return pipelines (25) are arranged inside the annular cavity (24), and the water return pipelines (25) are axially arranged along the channel (21, the axial two sides of the cylindrical thin plate (41) are respectively provided with a plurality of water leakage holes (414) matched with the two ends of the water return pipeline (25), the water leakage holes (414) on the same side and the distance between the interfaces of the water return pipeline (25) on the same side are equal to the maximum sliding distance of the limiting sliding plate (411) in the limiting sliding groove (241).
2. The water amount control device for a water supply pump according to claim 1, characterized in that: the linear driving mechanism (31) is any one of a slide bar electric cylinder, a slide bar hydraulic cylinder and a slide bar air cylinder.
3. The water amount control device for a water supply pump according to claim 1, characterized in that: the piston cylinder (32) is internally provided with a buffer mechanism, the buffer mechanism comprises a fixing plate (322) arranged in the piston cylinder (32), the fixing plate (322) is provided with a plurality of through holes (323), and a buffer spring (324) is arranged between the fixing plate (322) and the piston disc (321).
4. The water amount control device for a water supply pump according to claim 1, characterized in that: the middle part of the water return pipeline (25) is provided with a plurality of coiled pipeline sections (251).
5. The water amount control device for a water supply pump according to claim 1, characterized in that: the number of the water return pipelines (25) is not less than four.
Technical Field
The invention belongs to the technical field of water supply equipment, and particularly relates to a water quantity control device for a water supply pump.
Background
The water supply pump is a water conveying device, which transmits the mechanical energy of a prime motor or other external energy to liquid to pump the liquid under pressure, and has the characteristics of high efficiency, energy conservation, compact structure, convenient integral disassembly and sealing, convenient maintenance, pipeline type installation and small installation space.
Because the water pressure pumped by the water supply pump is high and the flow rate is high, when the water supply pump is directly externally connected with water using equipment, the water using equipment is damaged due to the flow rate and the water pressure, so that in the actual use process, other equipment is generally required to be used for limiting and reducing the flow of the water pumped by the water supply pump, however, the existing limiting and pressure reducing equipment is generally a system, comprises a large number of control elements and is high in cost.
Disclosure of Invention
The purpose of the invention is: it is intended to provide a water amount control device for a water supply pump to solve the problems in the background art.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a water quantity control device for a water supply pump comprises a water inlet interface, a water outlet interface and a device body, wherein a channel is arranged in the device body, the water inlet interface, the channel and the water outlet interface are communicated, the device body comprises a flow limiting part and a pressure reducing part, wherein,
the flow limiting part is arranged at one end of the water inlet connector, the flow limiting part comprises a linear driving mechanism arranged on the upper side of the device body, a piston cylinder is arranged on one side of the linear driving mechanism, a piston disc is arranged on the piston cylinder, a sealing ring matched with the piston cylinder is arranged on the piston disc, the linear driving mechanism is in transmission connection with the piston disc, an air vent is arranged on one side, away from the piston disc, of the device body, the upper end of the air vent penetrates through the device body and is communicated with the piston cylinder, an annular elastic air bag is bonded on the inner wall of the channel, and the lower end;
the pressure reducing part is arranged at one end of the water outlet interface and comprises a cylindrical thin plate connected with the inner wall of the channel in a sliding way and an annular cavity arranged along the axial direction of the channel, a limiting sliding plate is arranged on one side of the outer wall of the cylindrical thin plate, which is close to the water inlet interface, a limiting sliding groove matched with the limiting sliding plate is arranged on one side of the annular cavity, which is close to the water inlet interface, a return spring is arranged between the limiting sliding plate and the limiting sliding chute, a sieve plate is arranged at one side of the interior of the cylindrical thin plate, which is close to the water inlet interface, a plurality of water return pipelines which are uniformly distributed are arranged in the annular cavity, the water return pipelines are axially arranged along the channel and are communicated with the channel, the axial two sides of the cylindrical thin plate are respectively provided with a plurality of water leakage holes matched with the two ends of the water return pipeline, and the distance between the water leakage holes on the same side and the water return pipeline interface on the same side is equal to the maximum sliding distance of the limiting sliding plate in the limiting sliding groove.
By adopting the technical scheme of the invention, the water inlet interface is used for being externally connected with a water supply pump, the water outlet interface is used for being externally connected with water using equipment, and water pumped by the water supply pump flows into the water using equipment through the water inlet interface, the channel of the device body and the water outlet interface in sequence;
the linear driving mechanism of the flow limiting part is started, so that the linear driving mechanism drives the piston disc to move in the piston cylinder, and the piston disc and the piston cylinder are sealed through the sealing ring, so that the piston disc can compress gas in the piston cylinder during movement, the gas in the piston cylinder is sent into the annular elastic air bag through the vent hole, and the annular elastic air bag is expanded, so that the water outlet aperture of the channel is reduced, and the water supply amount is reduced;
after the water outlet aperture of the channel is reduced to adjust the water supply amount, the water pressure is increased, at the moment, water enters the decompression part and can buffer the water pressure through scouring the sieve plate, and on the other hand, when the sieve plate is scoured, the tubular thin plate is in sliding connection with the channel, so that the sieve plate can drive the tubular thin plate to move, the limiting sliding plate overcomes the elasticity of the return spring to slide in the limiting sliding groove, and at the moment, the return spring is in a compressed state;
along with the movement of the cylindrical thin plate, the water leakage holes on the same side of the cylindrical thin plate can be slowly close to the interfaces of the water return pipeline on the same side, so that water can be communicated with the interfaces on the two sides of the water return pipeline in the annular cavity through the water leakage holes on the two axial sides, and the water in the channel can flow into the water return pipeline to release pressure, so that the water pressure is reduced;
in addition, according to different water pressures, the larger the water pressure is, the larger the displacement of the cylindrical thin plate is, the larger the flow area of the same-side water leakage hole and the same-side water return pipeline interface is, so that the larger the water quantity entering the water return pipeline is, the larger the pressure relief degree is, and the pressure relief can be carried out in a self-adaptive manner on different water pressures;
after the use is finished, the linear driving mechanism is controlled to be started, the piston disc is restored to the initial position, the annular elastic air bag is elastically retracted, air enters the piston cylinder again through the vent hole, and meanwhile, the return spring is elastically restored to restore the cylindrical thin plate;
the invention has simple structure, convenient production and processing, simple operation and use and lower cost, and can adaptively regulate and release pressure according to the water pressure and protect water-using equipment.
Further, the linear driving mechanism is any one of a slide bar electric cylinder, a slide bar hydraulic cylinder and a slide bar air cylinder. The structure simplifies the structure of the linear driving mechanism and can be conveniently controlled manually.
Further inject, the inside buffer gear that still is equipped with of piston cylinder, buffer gear is including setting up the fixed plate in the piston cylinder inside, the fixed plate is equipped with a plurality of through-holes, be equipped with buffer spring between fixed plate and the piston dish. The structure is that the linear driving mechanism can buffer through the buffer spring when driving the piston disc to move, and meanwhile, the fixed plate can limit the movement of the piston disc.
Further limiting, the middle part of the water return pipeline is provided with a plurality of coiled pipeline sections. With such a configuration, the water in the return pipe can be further buffered and depressurized by providing the serpentine pipe section.
Further limit, the number of the water return pipelines is not less than four. The structure can lead the water return pipeline to uniformly release pressure of water, and simultaneously has good water return pressure release effect.
Compared with the prior art, the invention has the following advantages:
1. the structure is simple, the production and the processing are convenient, the operation and the use are simple, the cost is lower, and compared with a current-limiting pressure-reducing system with a large number of control elements, the cost is low;
2. the piston disc is driven to move in the piston cylinder through the linear driving mechanism, gas in the piston cylinder is compressed, the annular elastic air bag is further expanded, the water outlet aperture of the channel is reduced, and the water supply amount is reduced;
3. the sieve plate can primarily buffer water in the channel, so that the water pressure is reduced, meanwhile, the water in the channel can flow into the water return pipeline for returning and pressure relief through the movement of the cylindrical thin plate, and the coiled pipeline section of the water return pipeline can further relieve the pressure of the water in the water return pipeline, so that the pressure relief effect is better;
4. the flow area of the water leakage hole and the water return pipeline interface can be changed in a self-adaptive mode according to different water pressure sizes, and therefore when the water pressure is large, the degree of water return pressure relief is large.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic view showing the construction of an embodiment of a water amount controlling apparatus for a water supply pump according to the present invention;
FIG. 2 is a schematic front view of an embodiment of a water amount control device for a water supply pump according to the present invention in a partial sectional view;
FIG. 3 is a schematic top view showing the internal cross-sectional structure of an embodiment of a water amount controlling means for a water supply pump according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
the main element symbols are as follows:
the
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1-4, the water quantity control device for a water supply pump of the present invention comprises a
By adopting the technical scheme of the invention, the
the
after the water outlet aperture of the
along with the movement of the cylindrical
moreover, according to different water pressures, the larger the water pressure is, the larger the displacement of the cylindrical
after the use is finished, the
the invention has simple structure, convenient production and processing, simple operation and use and lower cost, and can adaptively regulate and release pressure according to the water pressure and protect water-using equipment.
Specifically, the
Specifically, the
Specifically, the middle of the
Specifically, the number of the
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.