High-precision intelligent adjusting valveless pump

Abstract

The utility model relates to the technical field of valveless pumps, in particular to a high-precision intelligent adjusting valveless pump which comprises a driving mechanism and a pressure mechanism which are arranged up and down, the driving mechanism comprises a driving motor, the output end of the driving motor is provided with a piston assembly in a coupling mode, and the upper end of the piston assembly is further fixedly provided with the upper end of a piston module. The pressure mechanism further comprises a liquid inlet and outlet fixing end corresponding to the upper end of the piston module, and the liquid inlet and outlet fixing end makes contact with the piston module. A driving part is further arranged at the upper end of the liquid inlet and outlet fixing end and used for driving the liquid inlet and outlet fixing end to move up and down, the pressure sensor is arranged, electrically connected with the speed reducing motor and installed on the liquid discharging pipe, the liquid discharging pressure on the inner side of the liquid discharging pipe is detected, the speed reducing motor is adjusted through the pressure sensor, and the liquid discharging pressure on the inner side of the liquid discharging pipe is adjusted. And the speed reducing motor adjusts the pressure between the liquid inlet and outlet fixed end and the upper end of the piston module, so that the pressure stability is ensured, and the accuracy of the valveless pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valveless pumps, and specifically relates to a high-precision intelligent adjustment valveless pump. Background Art

[0002] For a valveless operating plunger metering pump, the operation of this pump is completed through the reciprocating movement and rotational movement of the plunger. In this way, the plunger itself can open and close the suction and outlet ports without the need for valves, and the stroke frequency working range of this pump is wide.

[0003] In the prior art, the flow rate and pressure of the valveless pump are adjusted according to customer requirements before leaving the factory and provided to the customer for use. The liquid suction and discharge are in a pattern of one section of liquid suction and one section of liquid discharge. During actual use, after a long time of use, due to uncontrollable factors such as wear of the internal materials of the pump and aging of the components, the pressure, flow rate, etc. inside the pump will change, resulting in low accuracy of the valveless pump. In view of this, in order to overcome the above technical problems, the utility model proposes a high-precision intelligent adjustment valveless pump, which solves the above technical problems. Summary of the Utility Model

[0004] In order to make up for the deficiencies of the prior art, the utility model proposes a high-precision intelligent adjustment valveless pump. The utility model passes through.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A high-precision intelligent adjustment valveless pump includes a driving mechanism and a pressure mechanism arranged up and down. The driving mechanism includes a driving motor, and a piston assembly is coupled to the output end of the driving motor. The upper end of the piston assembly is also fixedly provided with an upper end of the piston module. The pressure mechanism also includes a liquid inlet and outlet fixed end corresponding to the upper end of the piston module, and the two are in contact with each other;

[0007] A driving member is further arranged at the upper end of the liquid inlet and outlet fixed end for driving the liquid inlet and outlet fixed end to move up and down to adjust the pressure between the upper end of the piston module and the liquid inlet and outlet fixed end. Channels for liquid flow are correspondingly opened inside the upper end of the piston module and the liquid inlet and outlet fixed end;

[0008] Both ends of the channel are respectively connected with a liquid inlet pipe and a liquid discharge pipe in a through manner. A pressure sensor is also arranged on the liquid discharge pipe. The pressure sensor is used to detect the pressure inside the liquid discharge pipe, and the pressure sensor is also electrically connected to the driving member.

[0009] Preferably, the piston assembly includes a fixed cover fixedly arranged on the upper end face of the driving motor. The bottom face of the fixed cover is an inclined plane. A sleeve is also movably arranged on the upper end face of the fixed cover. A plurality of piston members are arranged inside the sleeve. The bottom end of the piston member is in contact with the inclined plane. The output end of the driving motor is also fixedly provided with a U-shaped shaft. A round shaft is also fitted inside the U-shaped shaft. The round shaft is also fixedly inserted inside the sleeve.

[0010] Preferably, the piston member includes a piston main body and a piston module which are clamped up and down. A sphere is integrally arranged at the lower end of the piston module. The sphere is in contact with the inclined plane. Through holes are correspondingly formed in the inner side of the upper end of the piston module and the piston main body. The piston main body moves up and down along the through hole.

[0011] Preferably, the channel includes a first channel formed at the upper end of the through hole. A second channel is correspondingly formed in the inner side of the liquid inlet and outlet fixed end and the first channel. The first channel is also connected to the second channel in a through manner. The two ends of the second channel are respectively connected to a liquid inlet end and a liquid discharge end in a through manner. The liquid inlet pipe and the liquid discharge pipe are respectively connected to the liquid inlet end and the liquid discharge end in a through manner.

[0012] Preferably, an outer shell is also fixedly sleeved on the outer sides of the fixed cover and the sleeve.

[0013] Preferably, a disc spring assembly is also arranged inside the liquid inlet and outlet fixed end. The lower end of the driving member faces the upper end face of the disc spring assembly.

[0014] Preferably, the driving member includes a reduction motor. A push rod is also arranged outside the reduction motor. The reduction motor is mounted on the push rod. The output shaft of the reduction motor faces the disc spring assembly. A fixed column is also arranged on the lower end face of the push rod. The bottom end of the fixed column is also fixedly installed on the upper end face of the outer shell.

[0015] Preferably, a flow sensor and a bubble sensor are respectively arranged on the liquid discharge pipe.

[0016] Preferably, a liquid leakage detector is also arranged inside the driving mechanism.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. By arranging a pressure sensor in the present utility model, the pressure sensor is electrically connected to the reduction motor. The pressure sensor is mounted on the liquid discharge pipe. By detecting the liquid discharge pressure inside the liquid discharge pipe and then adjusting the reduction motor through the pressure sensor, and the reduction motor adjusts the pressure between the liquid inlet and outlet fixed end and the upper end of the piston module, thereby ensuring stable pressure and improving the accuracy of the valve-less pump.

[0019] 2. The utility model is provided with a bubble detector, which is used to detect whether there are bubbles in the liquid discharge pipe. When there are bubbles, the pressure between the liquid inlet and outlet fixed end and the upper end of the piston module can be increased to improve the liquid discharge flow rate of the pump. By adjusting the pressure of the pump, the flow rate can be further increased to discharge the bubbles in the pump body.

[0020] 3. The utility model is provided with a flow sensor and a liquid leakage detector, etc., which can control the flow rate of the pump. And on the premise that the pressure sensor fails, the liquid leakage detector can also be used to detect whether there is liquid leakage in the pump to ensure the normal use of the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 is a schematic diagram of the first sectional structure of the present utility model;

[0024] Figure 3 is Figure 2 a partial enlarged structural schematic diagram at position A in

[0025] Figure 4 is a schematic diagram of the second sectional structure of the present utility model;

[0026] Figure 5 is a schematic diagram of the disassembled structure of the present utility model.

[0027] In the figure: 1, driving mechanism; 11, driving motor; 12, U-shaped shaft; 13, round shaft; 14, piston module; 15, piston body; 16, sphere; 17, inclined plane; 18, upper end of piston module; 19, housing; 110, sleeve; 111, fixed cover; 112, first channel; 2, pressure mechanism; 21, reduction motor; 22, push rod; 23, disc spring assembly; 24, liquid inlet pipe; 25, liquid discharge pipe; 26, liquid inlet and outlet fixed end; 27, fixed column; 28, second channel; 29, liquid discharge end; 210, liquid inlet end; 3, pressure sensor; 4, flow sensor; 5, bubble sensor; 6, liquid leakage detector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] As Figures 1-5 shown, a high-precision intelligent adjustment valve-less pump described in the present utility model includes a pressure mechanism 2 and a driving mechanism 1 arranged up and down. Among them, as Figure 2As shown, the driving mechanism 1 includes a driving motor 11, a fixed cover 111 is fixedly installed on the upper end of the driving motor 11, a sleeve 110 is movably arranged along the upper end of the fixed cover 111, a piston member is movably arranged up and down inside the sleeve 110, and the piston member includes a piston module 14 and a piston body 15 arranged up and down, wherein a round shaft 13 is inserted into the inner side of the sleeve 110, and a U-shaped shaft 12 is fixedly connected to the output end of the driving motor 11, and the round shaft 13 is also embedded in the upper end of the U-shaped shaft 12, wherein, as shown in FIG. Figure 5 The fixing cover 111 is provided at the upper end of the driving motor 11, and its bottom corresponds to the bottom end of the piston module 14 as an inclined surface 17; the fixing cover 111 and the sleeve 110 are also provided with a housing 19 outside for protection;

[0030] Therefore, when the driving motor 11 is working, its output end drives the U-shaped shaft 12 to rotate, and the U-shaped shaft 12 drives the round shaft 13 to rotate. Since the round shaft 13 is inserted into the sleeve 110, and the round shaft 13 and the sleeve 110 are fixedly connected, the sleeve 110 is driven to rotate, so that the piston module 14 in the sleeve 110 rotates together with the sleeve 110. Since the bottom end of the piston module 14 contacts the inclined surface 17, the end of the piston module 14 that contacts the inclined surface 17 is also integrally formed with a ball 16, so the piston module 14 moves up and down along the inclined surface 17;

[0031] like Figure 3 As shown, a piston module upper end 18 is also provided at the upper end of the sleeve 110, a through hole is also provided on the inner side of the piston module upper end 18 corresponding to the piston body 15, and a first channel 112 is also provided at the upper end of the through hole, and the piston body 15 moves along the through hole to suck in the liquid and then discharge it; as shown in another example Figure 2 As shown, the pressure mechanism 2 includes a reduction motor 21, and a push rod 22 is fixedly arranged on the outer side of the reduction motor 21. The reduction motor 21 is installed on the push rod 22. Figure 4 As shown, the bottom end of the push rod 22 is also fixedly connected to a fixing column 27, and the bottom end of the fixing column 27 is fixedly installed on the upper end surface of the housing 19. A liquid inlet and outlet fixed end 26 is also provided below the reduction motor 21. A second channel 28 is provided in the liquid inlet and outlet fixed end 26 corresponding to the first channel 112, and the upper end of the second channel 28 is respectively connected to a liquid discharge end 29 and a liquid inlet end 210, and a liquid discharge pipe 25 and a liquid inlet pipe 24 are respectively connected to the liquid discharge end 29 and the liquid inlet end 210. Figure 2As shown in the figure, a pressure sensor 3 is further provided on the liquid discharge pipe 25. Among them, the pressure sensor 3 is also electrically connected to the reduction motor 21. The pressure sensor 3 is used to detect the pressure in the liquid discharge pipe 25. Through the pressure fed back to the pressure sensor 3 in the liquid discharge pipe 25, the pressure sensor 3 drives the reduction motor 21, and the reduction motor 21 drives the push rod 22 to move up or down, that is, to adjust the pressure between the upper end 18 of the piston module and the liquid inlet and outlet fixed end 26, so that the pressure between the two reaches the required value, thereby ensuring the stable pressure of the pump to suck and discharge liquid;

[0032] Among them, as Figure 3 shown in the figure, a disc spring assembly 23 is further provided inside the liquid inlet and outlet fixed end 26, and the upper part directly above the disc spring assembly 23 is in contact with the output shaft of the reduction motor 21;

[0033] In addition, as Figure 2 shown in the figure, a flow sensor 4 is further provided on the liquid discharge pipe 25 to control the flow rate when the liquid discharge pipe 25 discharges liquid. A bubble sensor 5 is also provided to prevent the presence of tiny bubbles in the pump. When the bubble sensor 5 detects bubbles in the pipe, the rotational speed of the drive motor 11 can be increased to increase the flow rate of the inlet and outlet liquid, and the reduction motor 21 can be used to increase the pressure between the upper end 18 of the piston module and the liquid inlet and outlet fixed end 26, and at the same time adjust an appropriate flow rate, so as to discharge the bubbles in the pump body;

[0034] Among them, as Figure 4 shown in the figure, a liquid leakage detector 6 is further provided inside the drive mechanism 1. When the pressure sensor 3 fails, due to unstable pressure, it will cause the problem of liquid leakage in the pump. At this time, the liquid leakage detector 6 provided in the pump can serve as a double safety protection to ensure the safety of the equipment.

[0035] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the attached Figure 1 orientation or positional relationship shown in the figure, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0036] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision intelligent adjustment valve-less pump, characterized in that: It includes a driving mechanism (1) and a pressure mechanism (2) arranged vertically. The driving mechanism (1) includes a driving motor (11). The output end of the driving motor (11) is coupled with a piston assembly. The upper end of the piston assembly is also fixedly provided with an upper end of the piston module (18). The pressure mechanism (2) further includes a liquid inlet / outlet fixed end (26) corresponding to the upper end of the piston module (18), and the two are in contact with each other. An upper end of the liquid inlet / outlet fixed end (26) is further provided with a driving member for driving the liquid inlet / outlet fixed end (26) to move up and down to adjust the pressure between the upper end of the piston module (18) and the liquid inlet / outlet fixed end (26). Channels for liquid flow are correspondingly opened inside the upper end of the piston module (18) and the liquid inlet / outlet fixed end (26). Both ends of the channel are respectively connected to a liquid inlet pipe (24) and a liquid discharge pipe (25) in a through manner. A pressure sensor (3) is further arranged on the liquid discharge pipe (25). The pressure sensor (3) is used for detecting the pressure inside the liquid discharge pipe (25), and the pressure sensor (3) is also electrically connected to the driving member.

2. The high-precision intelligent adjustable valveless pump according to claim 1, wherein: The piston assembly includes a fixed cover (111) fixedly arranged on the upper end face of the driving motor (11). The bottom face of the fixed cover (111) is an inclined surface (17). A sleeve (110) is movably arranged on the upper end face of the fixed cover (111). Multiple groups of piston members are arranged inside the sleeve (110). The bottom end of the piston member is in contact with the inclined surface (17). The output end of the driving motor (11) is further fixedly provided with a U-shaped shaft (12). A round shaft (13) is embedded inside the U-shaped shaft (12), and the round shaft (13) is also fixedly inserted inside the sleeve (110).

3. The high-precision intelligent adjustment valve-less pump according to claim 2, characterized in that: The piston member includes a piston main body (15) and a piston module (14) clamped up and down. A sphere (16) is integrally arranged at the lower end of the piston module (14). The sphere (16) is in contact with the inclined surface (17). Through holes are correspondingly opened inside the upper end of the piston module (18) and the piston main body (15), and the piston main body (15) moves up and down along the through holes.

4. The high-precision intelligent adjustable valveless pump according to claim 3, characterized in that: The channel includes a first channel (112) opened at the upper end of the through hole. A second channel (28) is correspondingly opened inside the liquid inlet / outlet fixed end (26) and the first channel (112). The first channel (112) is also connected to the second channel (28) in a through manner. Both ends of the second channel (28) are respectively connected to a liquid inlet end (210) and a liquid discharge end (29) in a through manner. The liquid inlet pipe (24) and the liquid discharge pipe (25) are respectively connected to the liquid inlet end (210) and the liquid discharge end (29) in a through manner.

5. The high-precision intelligent adjustable valve-less pump according to claim 2, wherein: An outer shell (19) is fixedly sleeved outside the fixed cover (111) and the sleeve (110).

6. The high-precision intelligent adjustment valve-less pump according to claim 1, wherein: A disc spring assembly (23) is further arranged inside the liquid inlet / outlet fixed end (26). The lower end of the driving member is opposite to the upper end face of the disc spring assembly (23).

7. The high-precision intelligent adjustment valve-less pump according to claim 6, characterized in that: The driving member includes a reduction motor (21), a push rod (22) is further arranged outside the reduction motor (21), the reduction motor (21) is mounted on the push rod (22), the output shaft of the reduction motor (21) faces the disc spring assembly (23), a fixing column (27) is further arranged on the lower end surface of the push rod (22), and the bottom end of the fixing column (27) is fixedly installed on the upper end surface of the housing (19).

8. The high-precision intelligent regulation valve-less pump according to claim 1, wherein: A flow sensor (4) and a bubble sensor (5) are respectively arranged on the drain pipe (25).

9. The high-precision intelligent adjustment valve-less pump according to claim 1, wherein: A liquid leakage detector (6) is further arranged inside the driving mechanism (1).

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