Chemical dosing pump

Abstract

A box body of the dosing pump comprises a bottom shell, a surface cover, a box body sealing ring, a control panel, a display panel, a cable lock head and a BNC (bayonet nut connector), the pump head comprises a pump head body, a driving support suite, a rubber pipe fitting and a motor, the driving support suite, the rubber pipe fitting and the motor and other quick-wear parts are installed on the pump head body to form the detachable pump head, and the pump head is installed in the front face of the face cover through a plurality of pump head screws. Only several pump head screws need to be screwed out, and then the whole pump head is detached; besides, a box body sealing ring is arranged at the joint of the bottom shell and the surface cover, and a pump head sealing ring is also arranged when the pump head body is mounted in the pump head mounting groove, so that the surrounding humid environment and a small amount of diffused corrosive gas are not easy to permeate into the box body, and the service life of the box body is prolonged. Therefore, the LED lamp is more reasonable in structure and more convenient to replace and maintain, and the service life of the LED lamp can be prolonged.

Description

Technical Field

[0001] The utility model relates to a liquid pump, in particular to a dosing pump for injecting liquid medicine for water quality treatment into liquid containers such as swimming pools or pools. Background Art

[0002] The external structure of the dosing pump is mainly divided into a pump head, a box body face cover, a box body lower cover, and a wall-mounted base. At present, most dosing pumps generally combine the pump body and the face cover into the pump head. For example, a dosing pump with the patent publication number CN201560956U installs a reduction motor, a pump body in the shape of a "U" tube, a linear pressure wheel, a pipe joint, a fixed pressing plate, etc. into the front and rear parts of the pump shell to form the pump head, and then installs a front mask in front of the pump head and a bottom cover at the bottom. Since the pipe fittings and motors of the pump head will be aged and damaged by the liquid medicine during long-term use, these components are most likely to be damaged. At present, when users replace the pipe fittings and motors, they must disassemble the entire dosing pump to replace them. The process is relatively complex and time-consuming, and professional technicians are required to operate and replace them. Therefore, the current dosing pump is troublesome, time-consuming and laborious to replace and repair. In addition, the current dosing pump is poor in sealing performance, resulting in a relatively humid environment around the dosing pump and the emitted trace corrosive gas being likely to cause greater corrosion to important components such as the motor and control circuit inside the pump, thereby reducing the service life of the dosing pump. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a dosing pump with a more reasonable structure, more convenient replacement and maintenance, and an improved service life.

[0004] In order to solve the above-mentioned existing technical problems, the utility model adopts the following technical solutions:

[0005] A dosing pump, comprising a box body and a pump head, wherein:

[0006] The box body includes a bottom shell, a face cover, a box body sealing ring, a control board, a display panel, a cable lock head and a BNC joint; a ring groove for placing the box body sealing ring is provided on the outer peripheral wall of the bottom shell; when the face cover is installed on the bottom shell, the joint is sealed by the box body sealing ring; a through hole communicating with the bottom shell and a pump head installation groove located around the through hole are provided in the front of the face cover; the control board is fixed inside the bottom shell; the display panel is installed inside the face cover from the side facing the bottom shell; the cable lock head and the BNC joint are provided in the lower wall of the bottom shell;

[0007] The pump head includes a pump head body, a drive bracket kit, a rubber pipe fitting, and a motor. A receiving groove is provided in the front face of the pump head body. After the drive bracket kit and the rubber pipe fitting are placed in the receiving groove, the pipe body of the rubber pipe fitting is wound around the outside of the drive bracket kit in a U shape, and the lower end of the receiving groove is exposed outside the water connection head. After the motor is installed inside the pump head body, its motor shaft is connected to the drive bracket kit. After the pump head is detachably installed in the pump head installation groove with a pump head seal ring placed therein, a transparent cover is tightened and fixed on the surface of the pump head body with screws.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: Since three vulnerable parts, namely the drive bracket kit, the rubber pipe fitting, and the motor, are installed on the pump head body to form a detachable pump head, and the pump head is then installed in the front face of the face cover with a few pump head screws, when replacing and maintaining, only a few pump head screws need to be unscrewed and the entire pump head can be removed. In addition, since a box body seal ring is provided at the joint of the bottom shell and the face cover, and a pump head seal ring is also provided when the pump head body is installed in the pump head installation groove, the surrounding humid environment and the slightly emitted corrosive gases are not easily infiltrated into the box body, which greatly reduces the corrosion of electrical components such as the motor and the control panel display panel. Therefore, the structure of the present utility model is more reasonable, and the replacement and maintenance are more convenient and can improve the service life of the product.

[0009] The following further describes the present utility model in detail in conjunction with the accompanying drawings and specific embodiments: Description of the Drawings

[0010] Figure 1 is a three-dimensional schematic diagram of an embodiment of the present utility model;

[0011] Figure 2 is a disassembly and assembly schematic diagram of the embodiment of the present utility model during replacement and maintenance;

[0012] Figure 3 is a disassembly and assembly schematic diagram of the pump head of the embodiment of the present utility model;

[0013] Figure 4 is a disassembly and assembly schematic diagram of the box body of the embodiment of the present utility model. Specific Embodiments

[0014] The present utility model is a dosing pump, as Figure 1 、 2 shown, including a box body 1 and a pump head 2, wherein:

[0015] As Figure 4As shown, the box body 1 includes a bottom shell 11, a face cover 12, a box body sealing ring 13, a control board 14, a display panel 15, a cable lock head 16, and a BNC connector 17; a ring groove 111 for placing the box body sealing ring 13 is provided on the outer peripheral wall of the bottom shell 11; when the face cover 12 is installed on the bottom shell 11, the joint is sealed by the box body sealing ring 13; through holes 121 communicating with the space of the bottom shell 11 and pump head mounting grooves 122 located around the through holes 121 are provided on the front surface of the face cover 12; the control board 14 is fixed inside the bottom shell 11; the display panel 15 is installed inside the face cover 12 from the side facing the bottom shell 11; the cable lock head 16 and the BNC connector 17 are provided in the lower wall of the bottom shell 11;

[0016] As Figure 3 shown, the pump head 2 includes a pump head body 21, a drive bracket kit 22, a rubber pipe fitting 23, and a motor 24; a receiving groove 211 is provided on the front surface of the pump head body 21; after the drive bracket kit 22 and the rubber pipe fitting 23 are placed in the receiving groove 211, the pipe body portion 231 of the rubber pipe fitting 23 is wound around the drive bracket kit 22 in a U shape and the water connection head 232 is exposed at the lower end of the receiving groove 211; after the motor 24 is installed inside the pump head body 21, its motor shaft 241 is connected to the drive bracket kit 22; after the pump head 2 is detachably installed in the pump head mounting groove 122 where the pump head sealing ring 26 is placed by pump head screws 25, a transparent cover 3 of transparent color is tightened and fixed on the surface of the pump head body 21 with screws 27, which is convenient for observing the working condition of the dosing pump and can achieve a good sealing effect (because the pump head screw holes of the pump head body are covered).

[0017] When the vulnerable parts (drive bracket kit 22, rubber pipe fitting 23, and motor 24) of the dosing pump are damaged and need to be replaced or maintained, as long as the screws 27 are first unscrewed to remove the transparent cover 3, and then the pump head screws 25 (and the power supply wire terminals of the motor are removed), the entire pump head can be removed, and then a new pump head can be replaced.

[0018] As can be seen from the above, after three vulnerable parts, namely the drive bracket kit 22, the rubber pipe fitting 23 and the motor 24, are installed on the pump head body 21, a detachable pump head 2 is formed. Then, the pump head 2 is installed on the front surface of the face cover 12 with several pump head screws 25. In this way, when replacing and maintaining, only need to unscrew several pump head screws 25 and then remove the whole pump head; In addition, since the bottom case 11 and the face cover 12 are provided with a box body sealing ring 13 at the joint, and a pump head sealing ring 26 is also provided when the pump head body 21 is installed in the pump head installation groove 122, the surrounding humid environment and the slightly emitted corrosive gas are not easily infiltrated into the box body 1, which greatly reduces the corrosion of electrical components such as the motor 24, the control board 14 and the display panel 15. Therefore, the structure of the present utility model is more reasonable, and the replacement and maintenance are more convenient and can improve the service life of the product.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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, and therefore should not be construed as a limitation to the present utility model.

[0020] Although the present utility model has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the present disclosure that various changes or modifications can be made to the present utility model without departing from the principle and spirit scope defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, rather than to limit the present utility model, and the protection scope is defined by the content of the claims.

Claims

1. A drug delivery pump, characterized in that: It includes a box body and a pump head, including: The box body comprises a bottom shell, a cover, a box body sealing ring, a control board, a display panel, a cable lock and a BNC connector; a ring groove for placing the box body sealing ring is provided on the outer peripheral wall of the bottom shell; the cover is sealed by the box body sealing ring at the joint when it is installed on the bottom shell; a through hole communicating with the bottom shell and a pump head installation groove located around the through hole are provided in the front of the cover; the control board is fixed in the bottom shell; the display panel is installed in the cover from the side facing the bottom shell; the cable lock and the BNC connector are arranged in the lower wall of the bottom shell; The pump head includes a pump head body, a drive bracket kit, a rubber tube and a motor; a receiving groove is provided in the front of the pump head body; after the drive bracket kit and the rubber tube are placed in the receiving groove, the tube body of the rubber tube is U-shaped and wrapped around the outside of the drive bracket kit and the water receiving head to expose the lower end of the receiving groove; after the motor is installed inside the pump head body, its motor shaft is connected to the drive bracket kit; after the pump head is detachably installed in the pump head installation groove where the pump head sealing ring is placed by the pump head screw, the transparent cover is tightened and fixed to the surface of the pump head body with screws.

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