A multifunctional pump body combined structure

Abstract

The invention discloses a multifunctional pump body combination structure, which combines a peristaltic pump and a diaphragm pump. The peristaltic pump continuously conveys liquid, and the diaphragm pump conveys liquid in a closed interval, which perfectly solves the existing open liquid adding problem and realizes the miniaturization of the equipment; the liquid outlet pipeline of the peristaltic pump is connected with the liquid outlet pipeline of the diaphragm pump; a spiral protrusion is arranged on the outer side of the peristaltic pump shaft, and the spiral protrusion is continuously spirally coiled on the outer side of the peristaltic pump shaft; at least one peristaltic pump pipe is arranged between the peristaltic pump shaft and the peristaltic pump housing, and both ends of the peristaltic pump pipe extend to the outer side of the peristaltic pump housing, and the inner side wall of the peristaltic pump housing and the spiral protrusion cooperate to clamp the peristaltic pump pipe; the diaphragm pump motor is transversely fixed on the diaphragm pump body, and the power output shaft of the diaphragm pump motor extends into the diaphragm pump body, and the diaphragm pump body is sleeved on the power output shaft of the diaphragm pump motor.

Description

Technical Field

[0001] The invention discloses a multifunctional pump body combination structure, belonging to the technical field of combination pumps. Background Art

[0002] In pipe liquid transportation, it is often necessary to add liquid at intervals. The current liquid addition is usually open, and the equipment is huge and complex in structure, which is not conducive to the work of closed liquid addition. How to achieve closed and intermittent liquid addition during continuous liquid transportation has always been the focus of research for technical personnel in this field. Summary of the invention

[0003] The present invention overcomes the shortcomings of the prior art and provides a multifunctional pump body combination structure, which combines a peristaltic pump and a diaphragm pump. The peristaltic pump continuously transports liquid, and the diaphragm pump transports liquid in closed intervals. It perfectly solves the current open liquid addition problem and realizes miniaturization of the equipment.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a multifunctional pump body combination structure, including a peristaltic pump and a diaphragm pump, the liquid outlet pipe of the peristaltic pump is connected with the liquid outlet pipe of the diaphragm pump;

[0005] The structure of the peristaltic pump is as follows: it includes a peristaltic pump tube, a peristaltic pump shaft, a peristaltic pump end cover, a peristaltic pump housing and a peristaltic pump motor. The peristaltic pump housing is a shell-like structure with an opening at the front end. The peristaltic pump motor is arranged on the outer side of the rear end of the peristaltic pump housing, and the power output shaft of the peristaltic pump motor extends from the rear end of the peristaltic pump housing into the peristaltic pump housing, and is connected to the peristaltic pump shaft arranged longitudinally along the peristaltic pump housing and located in the peristaltic pump housing. A spiral protrusion is arranged on the outer side of the peristaltic pump shaft, and the spiral protrusion is continuously spirally coiled on the outer side of the peristaltic pump shaft. At least one peristaltic pump tube is arranged between the peristaltic pump shaft and the peristaltic pump housing. Both ends of the peristaltic pump tube extend to the outer side of the peristaltic pump housing, and the peristaltic pump tube located in the peristaltic pump housing is distributed along the axial direction of the peristaltic pump shaft. The inner side wall of the peristaltic pump housing and the spiral protrusion cooperate to clamp the peristaltic pump tube. The peristaltic pump end cover is arranged at the front end of the peristaltic pump housing.

[0006] The structure of the diaphragm pump is as follows: it includes a diaphragm pump base, a diaphragm pump motor, a diaphragm pump body, a valve upper plate and a valve lower plate, at least two of the diaphragm pump bodies are arranged on the diaphragm pump base, the valve lower plate is fixedly arranged on the upper end of the diaphragm pump body, a through hole is arranged in the middle of the valve lower plate, and the through hole is used for the working end of the diaphragm pump body to extend, the valve upper plate is matched and arranged on the valve lower plate, the valve lower plate, the working end of the diaphragm pump body and the valve upper plate cooperate to form a closed working chamber; each of the valve upper plates is provided with a first pipeline and a second pipeline, one end of the first pipeline and the second pipeline is connected to the closed working chamber, and the other end is located on the valve upper plate or extends to the outside of the valve upper plate, the first pipeline and the second pipeline are both provided with two one-way valves, and the two one-way valves are arranged in opposite directions, and the one-way valves are used to control the liquid flow direction of the first pipeline and the second pipeline, and the first pipeline and the second pipeline of different valve upper plates work independently of each other, or are connected in series, or are connected in parallel through a three-way pipe;

[0007] The diaphragm pump body includes a shell, an eccentric wheel, a transmission rod, a pressure plate and a diaphragm. The power output shaft of the diaphragm pump motor extends into the shell, and the eccentric wheel is installed on the output shaft of the diaphragm pump motor. The diaphragm is matched and arranged in the valve lower plate, and can move up and down along the inner side of the valve lower plate in a sealed manner. A pressure plate is arranged on the lower side of the diaphragm, and a transmission rod is arranged on the lower side of the pressure plate. The transmission rod passes through the through hole of the valve lower plate and is movably connected with the eccentric wheel. The transmission rod is driven to move by the eccentric wheel, thereby driving the pressure plate and the diaphragm to move periodically up and down along the inner side of the valve lower plate.

[0008] A balancing hole is provided on the valve lower plate, the balancing hole is communicated with the inner cavity of the diaphragm pump body, and the balancing hole is located above the diaphragm pump motor or arranged toward the diaphragm pump motor for heat dissipation of the diaphragm pump motor.

[0009] The diaphragm pump base is composed of a plurality of claws, the upper ends of the claws are fixedly arranged on the pump body of the diaphragm pump, and the lower ends of the claws are provided with shock-absorbing pads.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the present invention connects the peristaltic pump and the diaphragm pump in parallel, utilizes the intermittent working characteristic of the diaphragm pump, and adds liquid to the liquid transmitted by the peristaltic pump when the peristaltic pump works continuously. The adding process is closed and the adding amount is controllable, which perfectly solves the existing open adding problem and realizes the miniaturization of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2It is a schematic diagram of the structure of the peristaltic pump in the present invention.

[0014] Figure 3 It is a schematic diagram of the casing structure of the peristaltic pump in the present invention.

[0015] Figure 4 It is a schematic diagram of the structure of the diaphragm pump in the present invention.

[0016] Figure 5 It is a cross-sectional view of the diaphragm pump of the present invention.

[0017] Figure 6 It is a schematic diagram of the structure of the diaphragm pumps working in series in the present invention.

[0018] Figure 7 It is a schematic diagram of the structure of the diaphragm pumps working in parallel in the present invention.

[0019] In the figure: 1 is a peristaltic pump, 11 is a peristaltic pump tube, 12 is a peristaltic pump shaft, 13 is a peristaltic pump end cover, 14 is a peristaltic pump housing, 15 is a spiral protrusion, 16 is a sleeve, 161 is an outer sleeve, 162 is an inner sleeve, 163 is a reinforcing rib, 17 is a peristaltic pump motor, 2 is a diaphragm pump, 21 is a diaphragm pump base, 22 is a diaphragm pump motor, 23 is a diaphragm pump body, 231 is a diaphragm, 232 is an eccentric wheel, 233 is a transmission rod, 234 is a pressure plate, 24 is a valve upper plate, 25 is a valve lower plate, 26 is a one-way valve, 27 is a first pipeline, 28 is a second pipeline, and 29 is a balancing hole. DETAILED DESCRIPTION

[0020] like Figure 1 to Figure 7 As shown, a multifunctional pump body assembly structure of the present invention comprises a peristaltic pump 1 and a diaphragm pump 2, wherein the liquid outlet pipe of the peristaltic pump 1 is connected to the liquid outlet pipe of the diaphragm pump 2;

[0021] The structure of the peristaltic pump 1 is as follows: it includes a peristaltic pump tube 11, a peristaltic pump shaft 12, a peristaltic pump end cover 13, a peristaltic pump housing 14 and a peristaltic pump motor 17. The peristaltic pump housing 14 is a shell-like structure with an open front end. The peristaltic pump motor 17 is arranged on the outer side of the rear end of the peristaltic pump housing 14, and the power output shaft of the peristaltic pump motor 17 extends from the rear end of the peristaltic pump housing 14 into the peristaltic pump housing 14 and is connected to the peristaltic pump shaft 12 which is arranged longitudinally along the peristaltic pump housing 14 and located in the peristaltic pump housing 14. The outer side of the peristaltic pump shaft 12 is provided with a A spiral protrusion 15 is provided, and the spiral protrusion 15 is continuously spirally coiled on the outside of the peristaltic pump shaft 12. At least one peristaltic pump tube 11 is provided between the peristaltic pump shaft 12 and the peristaltic pump housing 14. Both ends of the peristaltic pump tube 11 extend to the outside of the peristaltic pump housing 14, and the peristaltic pump tube 11 located in the peristaltic pump housing 14 is distributed along the axial direction of the peristaltic pump shaft 12. The inner side wall of the peristaltic pump housing 14 and the spiral protrusion 15 cooperate to clamp the peristaltic pump tube 11. The peristaltic pump end cover 13 is provided at the front end of the peristaltic pump housing 14.

[0022] The structure of the diaphragm pump 2 is as follows: it includes a diaphragm pump base 21, a diaphragm pump motor 22, a diaphragm pump body 23, a valve upper plate 24 and a valve lower plate 25, at least two of the diaphragm pump bodies 23 are arranged on the diaphragm pump base 21, the valve lower plate 25 is fixedly arranged at the upper end of the diaphragm pump body 23, the middle of the valve lower plate 25 is provided with a through hole, the through hole is used for the working end of the diaphragm pump body 23 to extend, the valve upper plate 24 is matched and arranged on the valve lower plate 25, the valve lower plate 25, the working end of the diaphragm pump body 23 and the valve upper plate 24 cooperate to form a closed working chamber; each valve The upper plate 24 is provided with a first pipeline 27 and a second pipeline 28. One end of the first pipeline 27 and the second pipeline 28 is communicated with the closed working chamber, and the other end is located on the valve upper plate 24 or extends to the outside of the valve upper plate 24. The first pipeline 27 and the second pipeline 28 are both provided with two one-way valves 26, and the two one-way valves 26 are arranged in opposite directions. The one-way valves 26 are used to control the flow direction of the liquid in the first pipeline 27 and the second pipeline 28. The first pipelines 27 and the second pipelines 28 of different valve upper plates 24 work independently of each other, or are connected in series, or are connected in parallel through a tee.

[0023] The diaphragm pump body 23 includes a shell 231, an eccentric wheel 232, a transmission rod 233, a pressure plate 234 and a diaphragm 235. The power output shaft of the diaphragm pump motor 22 extends into the shell 231. The eccentric wheel 232 is installed on the output shaft of the diaphragm pump motor 22. The diaphragm 235 is matched and arranged in the valve lower plate 25, and can move up and down along the inner side of the valve lower plate 25 in a sealed manner. A pressure plate 234 is arranged on the lower side of the diaphragm 235, and a transmission rod 233 is arranged on the lower side of the pressure plate 234. The transmission rod 233 passes through the through hole of the valve lower plate 25 and is movably connected with the eccentric wheel 232. The transmission rod 233 is driven to move by the eccentric wheel 232, thereby driving the pressure plate 234 and the diaphragm 235 to move periodically up and down along the inner side of the valve lower plate 25.

[0024] The valve lower plate 25 is provided with a balancing hole 29 , which is communicated with the inner cavity of the diaphragm pump body 23 . The balancing hole 29 is located above the diaphragm pump motor 22 or is arranged toward the diaphragm pump motor 22 for heat dissipation of the diaphragm pump motor 22 .

[0025] The diaphragm pump base 21 is composed of a plurality of claws, the upper ends of the claws are fixedly arranged on the diaphragm pump body 23, and the lower ends of the claws are provided with shock-absorbing pads.

[0026] The present invention connects a peristaltic pump and a diaphragm pump in parallel, and utilizes the intermittent working characteristic of the diaphragm pump to add liquid to the liquid transmitted by the peristaltic pump when the peristaltic pump works continuously. The adding process is closed and the adding amount is controllable, which perfectly solves the existing open adding problem and realizes the miniaturization of the equipment.

[0027] In the present invention, the spiral protrusion moves spirally outward, continuously squeezing the peristaltic pump tube in the peristaltic pump housing, which not only increases the squeezing area of ​​the pump tube and extends the use area of ​​the pump tube, but also the pump tube can be continuously squeezed, so that the pump tube achieves continuous transmission, has low noise, compact structure, small size, and can accommodate multiple pump tubes at the same time.

[0028] In the present invention, the eccentric wheel of the diaphragm pump drives the transmission rod to move, and the transmission rod drives the pressure plate and the diaphragm to move. Due to the guiding effect of the inner side of the valve lower plate, the pressure plate and the diaphragm are driven by the transmission rod to reciprocate up and down, so that the first pipeline and the second pipeline generate suction or pressure. If the working pressure is to be increased, the compressed gas generated by the diaphragm pump body needs to be superimposed in series through the series pipes. Under the premise of not significantly increasing the volume of the equipment, the pressure is doubled (in theory), which greatly increases the working pressure of the diaphragm pump body. If the working flow rate needs to be increased, the compressed gas generated by the diaphragm pump body needs to be superimposed in parallel. Under the premise of not significantly increasing the volume of the equipment, the maximum flow rate can be doubled, which greatly improves the application range of the pump body.

[0029] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A multifunctional pump body combination structure, characterized in that: It comprises a peristaltic pump (1) and a diaphragm pump (2), wherein the liquid outlet pipe of the peristaltic pump (1) is connected to the liquid outlet pipe of the diaphragm pump (2); The peristaltic pump (1) has a structure comprising a peristaltic pump tube (11), a peristaltic pump shaft (12), a peristaltic pump end cover (13), a peristaltic pump housing (14) and a peristaltic pump motor (17); the peristaltic pump housing (14) is a shell-like structure with an open front end; the peristaltic pump motor (17) is arranged outside the rear end of the peristaltic pump housing (14); a power output shaft of the peristaltic pump motor (17) extends from the rear end of the peristaltic pump housing (14) into the peristaltic pump housing (14) and is power-connected to a peristaltic pump shaft (12) arranged longitudinally along the peristaltic pump housing (14) and located in the peristaltic pump housing (14); and a peristaltic pump shaft (12) is arranged outside the peristaltic pump shaft (12). A spiral protrusion (15) is provided, the spiral protrusion (15) is continuously spirally wound on the outer side of the peristaltic pump shaft (12), at least one peristaltic pump tube (11) is provided between the peristaltic pump shaft (12) and the peristaltic pump housing (14), both ends of the peristaltic pump tube (11) extend to the outer side of the peristaltic pump housing (14), and the peristaltic pump tube (11) located in the peristaltic pump housing (14) is distributed along the axial direction of the peristaltic pump shaft (12), the inner side wall of the peristaltic pump housing (14) and the spiral protrusion (15) cooperate to clamp the peristaltic pump tube (11), and the peristaltic pump end cover (13) is provided at the front end of the peristaltic pump housing (14); The structure of the diaphragm pump (2) is as follows: it includes a diaphragm pump base (21), a diaphragm pump motor (22), a diaphragm pump body (23), a valve upper plate (24) and a valve lower plate (25), at least two of the diaphragm pump bodies (23) are arranged on the diaphragm pump base (21), the valve lower plate (25) is fixedly arranged on the upper end of the diaphragm pump body (23), the middle part of the valve lower plate (25) is provided with a through hole, the through hole is used for the working end of the diaphragm pump body (23) to extend, the valve upper plate (24) is matched and arranged on the valve lower plate (25), the valve lower plate (25), the working end of the diaphragm pump body (23) and the valve upper plate (24) cooperate to form a closed working chamber; each valve A first pipeline (27) and a second pipeline (28) are provided on the upper plate (24); one end of the first pipeline (27) and the second pipeline (28) are in communication with the closed working chamber, and the other end is located on the valve upper plate (24) or extends outward from the valve upper plate (24); the first pipeline (27) and the second pipeline (28) are provided with two one-way valves (26), and the two one-way valves (26) are arranged in opposite directions; the one-way valves (26) are used to control the flow direction of liquid in the first pipeline (27) and the second pipeline (28); the first pipelines (27) and the second pipelines (28) of different valve upper plates (24) work independently of each other, or are connected in series, or are connected in parallel through a tee; The diaphragm pump body (23) comprises a housing (231), an eccentric wheel (232), a transmission rod (233), a pressure plate (234) and a diaphragm (235); a power output shaft of the diaphragm pump motor (22) extends into the housing (231); the eccentric wheel (232) is mounted on the output shaft of the diaphragm pump motor (22); and the diaphragm (235) is matched and arranged in the valve lower plate (25) and can be sealed along the valve lower plate (25). The inner side of the diaphragm (235) moves up and down, a pressure plate (234) is provided on the lower side of the pressure plate (234), and a transmission rod (233) is provided on the lower side of the pressure plate (234). The transmission rod (233) passes through the through hole of the valve lower plate (25) and is movably connected to the eccentric wheel (232). The eccentric wheel (232) drives the transmission rod (233) to move, thereby driving the pressure plate (234) and the diaphragm (235) to move up and down periodically along the inner side of the valve lower plate (25); The peristaltic pump (1) and the diaphragm pump (2) are connected in parallel. The intermittent working characteristic of the diaphragm pump (2) is utilized to add liquid to the liquid transported by the peristaltic pump (1) when the peristaltic pump (1) is working continuously. The adding process is closed and the adding amount is controllable, thus solving the open adding problem and achieving miniaturization of the equipment. The eccentric wheel (232) of the diaphragm pump (2) drives the transmission rod (233) to move, and the transmission rod (233) drives the pressure plate (234) and the diaphragm (235) to move. Due to the guiding effect of the inner side of the valve lower plate (25), the pressure plate (234) and the diaphragm (235) move up and down under the drive of the transmission rod (233), so that the first pipeline and the second pipeline generate suction or pressure. If the working pressure is to be increased, the compressed gas generated by the diaphragm pump body needs to be connected in series through the series pipes and superimposed. Under the premise of not significantly increasing the volume of the equipment, the pressure is doubled, thereby increasing the working pressure of the diaphragm pump body. If the working flow rate needs to be increased, the compressed gas generated by the diaphragm pump body needs to be connected in parallel and superimposed. Under the premise of not significantly increasing the volume of the equipment, the maximum flow rate can be doubled, thereby improving the application range of the pump body. A balancing hole (29) is provided on the valve lower plate (25), and the balancing hole (29) is communicated with the inner cavity of the diaphragm pump body (23). The balancing hole (29) is located above the diaphragm pump motor (22) or is arranged toward the diaphragm pump motor (22) to dissipate heat from the diaphragm pump motor (22). The diaphragm pump base (21) is composed of a plurality of claws, the upper ends of the claws are fixedly arranged on the diaphragm pump body (23), and the lower ends of the claws are provided with shock-absorbing pads.

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