A pump

Abstract

The application discloses a pump, comprising a pump body and an indicator light assembly, the pump body is provided with an inner cavity, a liquid inlet and a liquid outlet which are communicated with the inner cavity, the pump body is provided with a movable element in the inner cavity, the movable element can move in the inner cavity to pump the liquid to be pumped out from the liquid inlet to the liquid outlet; the indicator light assembly comprises an indicator light and a power supply assembly, the indicator light is installed on the pump body, the power supply assembly is connected with the movable element, when the movable element moves in the inner cavity, the movable element can drive the power supply assembly to electrify or alternately turn on and off the indicator light, so that the indicator light is always bright or flashes. The pump of the technical scheme can directly and intuitively judge the working state of the pump by driving the power supply assembly to electrify or alternately turn on and off the indicator light, and meets the working demand of the staff to remotely observe the working state of the pump.

Description

Technical Field

[0001] This invention relates to the field of pump technology, and in particular to a pump. Background Technology

[0002] In existing technology, when a pneumatic oil pump is pumping oil from a drum, operators can only judge whether the operation is normal by the sound emitted by the pump. If the oil drum is located far away, operators may not be able to hear the pump's sound due to the distance, making it impossible to judge the pump's operating status and obtain real-time information about its operation. When the pump malfunctions or suddenly stops, operators cannot detect and resolve the problem in a timely manner, significantly impacting work progress. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a pump that drives a power supply component to energize or alternately turn the power on and off of an indicator light through a movable part, so as to intuitively determine the working status of the pump and meet the needs of staff to observe the working of the pump from a distance.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A pump, comprising:

[0006] The pump body has an inner cavity and an inlet and an outlet communicating with the inner cavity. The pump body has a movable part in the inner cavity, which can move in the inner cavity to pump the liquid to be pumped from the inlet to the outlet.

[0007] An indicator light assembly includes an indicator light and a power supply assembly. The indicator light is installed on the pump body. When the movable part moves in the inner cavity, the movable part can drive the power supply assembly and the indicator light to be energized or alternately energized and de-energized, so that the indicator light is constantly lit or flashing.

[0008] In some implementations of the present invention, in conjunction with the above implementations, the power supply component includes a coil assembly and a magnetic component. The coil assembly is mounted on the pump body and forms a movable cavity communicating with the inner cavity. The indicator light is connected to the end of the coil assembly away from the movable component. The magnetic component is connected to the movable component and extends into the movable cavity. The movable component can drive the magnetic component to rotate in the movable cavity or reciprocate along the movable cavity.

[0009] In some implementations of the present invention, in conjunction with the above implementations, the indicator light assembly further includes a mounting sleeve, the pump body is provided with a mounting hole communicating with the inner cavity, the mounting sleeve is mounted on the pump body through the mounting hole, the interior of the mounting sleeve communicates with the inner cavity, the indicator light and the coil assembly are both disposed in the mounting sleeve, and the movable part is connected to the magnetic component through a connecting shaft.

[0010] In some implementations of the present invention, in conjunction with the above implementations, the mounting sleeve includes a detachably connected straight cylindrical mounting sleeve and a stepped mounting sleeve. The mounting sleeve is sealed to the mounting hole through the stepped mounting sleeve. A first mounting cavity is formed inside the stepped mounting sleeve, and a second mounting cavity is formed inside the straight cylindrical mounting sleeve. The second mounting cavity communicates with the inner cavity through the first mounting cavity. The indicator light and the coil assembly are both located in the second mounting cavity, and the connecting shaft cooperates with the first mounting cavity.

[0011] In some implementations of the present invention, in conjunction with the above-described implementations, the stepped mounting sleeve has a first mating surface extending radially and a second mating surface extending axially at the position where it seals with the mounting hole. The inner wall surface of the mounting hole abuts against the second mating surface, and the outer end face of the mounting hole abuts against the first mating surface. The straight cylindrical mounting sleeve is fitted over the outside of the stepped mounting sleeve and abuts against the outer end face of the mounting hole.

[0012] In some implementations of the present invention, in conjunction with the above-described implementations, the coil assembly includes a coil mounting bracket and a coil. The coil mounting bracket cooperates with the straight cylindrical mounting sleeve and abuts against the stepped mounting sleeve. The coil mounting bracket has a through hole extending axially along the straight cylindrical mounting sleeve. A wire groove is formed on the outer periphery of the coil mounting bracket. The coil is wound in the wire groove. The indicator light is embedded in the through hole through a mounting base. The coil mounting bracket forms the movable cavity at one end of the mounting base near the magnetic component. The mounting base has a vent cavity communicating with the through hole and the second mounting cavity. The mounting sleeve has a vent hole. The through hole, the vent cavity, the second mounting cavity, and the vent hole are sequentially connected.

[0013] In some implementations of the present invention, in conjunction with the above implementations, a first sealing ring is provided between the stepped mounting sleeve and the inner wall surface of the mounting hole, a second sealing ring is provided between the stepped mounting sleeve and the connecting shaft, and an adjusting washer is provided between the coil mounting bracket and the stepped mounting sleeve.

[0014] In some implementations of the present invention, in conjunction with the above implementation methods, a light diffusion cover is provided on the top of the straight cylindrical mounting sleeve of the indicator light, and the light diffusion cover is detachably connected to the straight cylindrical mounting sleeve.

[0015] In some implementations of the present invention, in conjunction with the above implementations, a guide belt is further provided between the stepped mounting sleeve and the connecting shaft, the connecting shaft is provided with a mounting groove at one end near the indicator light, a magnetic connector is threaded into the mounting groove on the connecting shaft, the magnetic component is disposed in the mounting groove and located at the end of the magnetic connector near the indicator light, and the magnetic component is magnetically attracted to the magnetic connector.

[0016] In conjunction with the above implementation methods, some implementations of the present invention further include an information recording module and a signal transmission module. A display is provided on the outside of the mounting sleeve. The information recording module is electrically connected to the display. The signal transmission module is electrically connected to the information recording module and is used for wireless / wired connection with an external signal receiving end.

[0017] One of the above technical solutions has at least one of the following advantages or beneficial effects: When the pump of this technical solution is working, the movement of the moving parts in the pump body drives the power supply component to move, so that the power supply component, driven by the moving parts, can achieve energization or alternating on and off of the indicator light. The indicator light is in a constant state when energized and in a flashing state when alternating on and off, so as to intuitively determine whether the moving parts are working, thereby directly obtaining whether the pump is in a normal working state, meeting the need for obtaining the pump's working status from a distance, which is conducive to the staff to grasp the working information of the equipment in real time and ensure that the work can be carried out smoothly. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is an overall schematic diagram of one embodiment of the present invention;

[0020] Figure 2 This is a top view of an embodiment of the present invention;

[0021] Figure 3 yes Figure 2 Sectional view at point AA;

[0022] Figure 4 yes Figure 2 Sectional view at point BB;

[0023] Figure 5 This is a cross-sectional view of the connection between the reversing mechanism and the indicator light assembly according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of a stepped mounting sleeve according to an embodiment of the present invention. Detailed Implementation

[0025] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0026] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0027] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0029] See Figures 1 to 4 An embodiment of the present invention provides a pump, including a pump body and an indicator light assembly 5. The pump body 1 has an inner cavity 11 and an inlet 13 and an outlet 14 communicating with the inner cavity 11. The pump body 1 has a movable member 12 in the inner cavity 11, which can move in the inner cavity 11 to pump the liquid to be pumped, such as oil, from the inlet 13 to the outlet 14.

[0030] See Figure 5The indicator light assembly 5 includes an indicator light 21 and a power supply assembly (not shown in the figure). The indicator light 21 is mounted on the pump body 1. When the movable member 12 moves within the inner cavity 11, it can energize or alternately de-energize the power supply assembly and the indicator light 21, causing the indicator light 21 to be constantly lit or flashing. That is, when the movable member 12 moves within the inner cavity 11 and can keep the power supply assembly and the indicator light 21 energized, the indicator light 21 is constantly lit; when the movable member 12 moves within the inner cavity 11 and can alternately de-energize the power supply assembly and the indicator light 21, the indicator light 21 is flashing.

[0031] When the pump in this technical solution is working, the movement of the movable part 12 in the pump body 1 drives the movement of the power supply component. Under the action of the movable part 12, the power supply component is energized or alternately energized and de-energized with the indicator light 21. The indicator light 21 is constantly lit when energized and flashes when energized and de-energized. This allows for a direct and accurate determination of whether the movable part 12 is working, thus meeting the need for obtaining the pump's working status from a distance. This facilitates the staff to monitor the pump's working information in real time and ensures smooth operation.

[0032] It is understandable that the power supply component can use a magnetoelectric method to power the indicator light 21. The movable part 12 drives the magnetic component 22, such as a magnetic rod or magnet, to rotate or reciprocate linearly, so that the coil cuts the magnetic field to obtain electrical energy. The power supply component can also use a button battery, lithium battery or dry cell battery to power the indicator light 21. By setting circuits and contact switches on the button battery, lithium battery or dry cell battery, the movable part 12 touches or moves away from the contact switch during rotation or reciprocation, so as to close or open the switch, thereby realizing the alternating on and off of power supply between the power supply component and the indicator light 21.

[0033] Specifically, the configuration of the power supply components can be reasonably set according to the type of pump. For example, if the pump is a pneumatic suction pump and the moving part 12 includes a piston, see [reference needed]. Figure 1 , Figure 3 , Figure 4 and Figure 5The pump body 1 includes a cylinder 151, an oil suction pipe 152 located at the bottom of the cylinder 151, and a reversing mechanism 153 located at the top of the cylinder 151. The chambers of the cylinder 151 and the reversing mechanism 153 are connected to form an inner cavity 11. A piston is slidably mounted in the cylinder 151, dividing the chamber of the cylinder 151 into a first chamber and a second chamber. An indicator light assembly 5 is mounted on the top of the reversing mechanism 153. The bottom of the oil suction pipe 152 has an inlet, and the side of the top of the oil suction pipe 152 has an outlet. Gas is introduced into the reversing mechanism 153, which can change the flow direction of the gas so that the gas enters the first or second chamber of the cylinder 151, thereby changing the movement direction of the piston in the cylinder 151 to realize the reciprocating motion of the piston, so that the oil suction pipe 152 completes the oil suction and oil discharge actions. Since the oil suction principle of the pneumatic oil pump is well known to those skilled in the art, only the implementation principle of the power supply component will be explained here.

[0034] Specifically, when the power supply component uses a magnetoelectric method, the piston drives a magnetic rod or magnet or other magnetic component 22 to move linearly through the connecting shaft 25 connected to the top of the piston and passing through the reversing mechanism 153 during its up-and-down reciprocating motion, thereby causing the coil electrically connected to the indicator light 21 to cut the magnetic field and achieve continuous power supply; or the power supply component uses a button battery or lithium battery or other battery for power supply, and the piston touches or moves away from the contact switch during its linear reciprocating motion to achieve alternating power supply and deactivation.

[0035] When the pump is a centrifugal pump or a self-priming pump, the moving part 12 includes an impeller and a drive shaft connected to the impeller. When the drive shaft is driven by a motor to rotate and drive the impeller, the power supply component uses a magnetoelectric method. The drive shaft directly drives the magnetic component 22, such as a magnetic rod or magnet, to rotate, thereby causing the coil electrically connected to the indicator light 21 to cut the magnetic field and achieve continuous power supply. Alternatively, the power supply component can use a button battery or lithium battery for power supply. By setting a cam or other structure on the drive shaft, the drive shaft drives the cam to touch or move away from the contact switch during rotation, achieving alternating power supply. In addition, the specific connection method between the power supply component and the moving part 12 can be modified according to the actual situation, and no specific restrictions are imposed here.

[0036] See Figure 5In some embodiments, the power supply component includes a coil assembly 23 and a magnetic component 22. The coil assembly 23 is mounted on the pump body 1 and forms a movable cavity 233 communicating with the inner cavity 11. The end of the coil assembly 23 away from the movable component 12 is connected to an indicator light 21. The movable component 12 is connected to the magnetic component 22, which extends into the movable cavity 233. The movable component 12 can drive the magnetic component 22 to rotate in the movable cavity 233 or reciprocate along the movable cavity 233. The coil obtains electrical energy by cutting the magnetic field, causing the indicator light 21 to be energized and illuminated. By observing the working status of the indicator light 21, it is possible to directly determine whether the movable component 12 is working, thereby accurately determining whether the pump is working. This power supply component does not require an external power source, is energy-saving and environmentally friendly, and facilitates direct installation of the pump, reducing installation difficulty.

[0037] Further, see Figure 5 The indicator light assembly 5 also includes a mounting sleeve 24. The pump body 1 has a mounting hole (not shown in the figure) communicating with the inner cavity 11. The mounting sleeve 24 is mounted on the pump body 1 through the mounting hole. The interior of the mounting sleeve 24 communicates with the inner cavity 11. The indicator light 21 and the coil assembly 23 are both located in the mounting sleeve 24, which serves to protect the indicator light 21. The movable part 12 is connected to the magnetic part 22 through the connecting shaft 25 to ensure that the magnetic part 22 can extend into the movable cavity 233 and perform rotation or linear reciprocating motion.

[0038] Furthermore, see Figure 5 and Figure 6 The mounting sleeve 24 includes a detachably connected straight mounting sleeve 241 and a stepped mounting sleeve 242. The mounting sleeve 24 is sealed to the mounting hole via the stepped mounting sleeve 242. A first mounting cavity 2421 is formed inside the stepped mounting sleeve 242, and a second mounting cavity 2411 is formed inside the straight mounting sleeve 241. The second mounting cavity 2411 communicates with the inner cavity 11 via the first mounting cavity 2421.

[0039] Indicator light 21 and coil assembly 23 are both located in the second mounting cavity 2411. Connecting shaft 25 mates with the first mounting cavity 2421 and is detachably connected to magnetic component 22. Magnetic component 22 can be replaced by removing the straight cylindrical mounting sleeve 241, facilitating assembly and disassembly. It is understood that the straight cylindrical mounting sleeve 241 and stepped mounting sleeve 242 can be detachably connected by threaded connection or snap-fit, etc., and no specific limitations are made here.

[0040] Furthermore, see Figure 5 and Figure 6The stepped mounting sleeve 242 has a radially extending first mating surface 2422 and an axially extending second mating surface 2423 at the position where it seals with the mounting hole. The inner wall surface of the mounting hole abuts against the second mating surface 2423, and the outer end face of the mounting hole abuts against the first mating surface 2422, thereby achieving a sealing fit between the stepped mounting sleeve 242 and the pump body 1. The straight cylindrical mounting sleeve 241 is fitted over the stepped mounting sleeve 242 and abuts against the outer end face of the mounting hole, making the installation of the straight cylindrical mounting sleeve 241 more secure.

[0041] See Figure 5 In some embodiments, the coil assembly 23 includes a coil mounting bracket 231 and a coil 232. The coil mounting bracket 231 mates with the straight cylindrical mounting sleeve 241 and abuts against the stepped mounting sleeve 242. The coil mounting bracket 231 has a through hole (not shown) extending axially along the straight cylindrical mounting sleeve 241, and a wire groove (not shown) is formed on the outer periphery of the coil mounting bracket 231, in which the coil 232 is wound.

[0042] The indicator light 21 is embedded in the through hole through the mounting base 26. The coil mounting bracket 231 forms a movable cavity 233 at the end of the mounting base 26 near the magnetic component 22. The mounting base 26 is provided with a vent cavity 261 that connects the through hole and the second mounting cavity 2411. The mounting sleeve 24 is provided with a vent hole 243 that communicates with the outside. The through hole, the vent cavity 261, the second mounting cavity 2411 and the vent hole 243 are connected in sequence to avoid positive and negative pressure being generated inside the indicator light assembly 5 due to the movement of the magnetic component 22, so as to ensure that the indicator light 21 can operate normally.

[0043] Further, see Figure 5 A first sealing ring 31 is provided between the stepped mounting sleeve 242 and the inner wall of the mounting hole, and a second sealing ring 32 is provided between the stepped mounting sleeve 242 and the connecting shaft 25 to ensure a sealed fit between the pump body 1 and the indicator light assembly 5. An adjusting washer 33 is provided between the coil mounting bracket 231 and the stepped mounting sleeve 242 to ensure that the coil mounting bracket 231 can abut against the stepped mounting sleeve 242 to meet the installation requirements of the coil assembly 23.

[0044] Understandably, the color of the indicator light assembly 5 can be changed by replacing the indicator lights 21 with different colors or by installing different light diffusers 4. (See also...) Figure 1 and Figure 5 In some embodiments, the cylindrical mounting sleeve 241 is provided with a light diffuser 4 on the top of the indicator light 21. The light diffuser 4 is detachably connected to the cylindrical mounting sleeve 241, facilitating the installation of different light diffusers 4 so that the indicator light assembly 5 can emit light of the corresponding color. By installing different types of light diffusers 4 on pumps used for pumping different types of oil, operators can identify which pump is in operation from a distance by the color displayed by the indicator light assembly 5, which is convenient and practical.

[0045] See Figure 5 In some embodiments, a guide belt 34 is also provided between the stepped mounting sleeve 242 and the connecting shaft 25, which serves as a guide and reduces the friction between the connecting shaft 25 and the stepped mounting sleeve 242, thereby reducing the wear of the indicator light assembly 5.

[0046] The connecting shaft 25 has a mounting groove 251 at one end near the indicator light 21, and a magnetic connector 252 is threaded into the mounting groove 251. A magnetic component 22 is located in the mounting groove 251 and at the end of the magnetic connector 252 near the indicator light 21. The magnetic component 22 is magnetically attracted to the magnetic connector 252, ensuring a secure installation and facilitating easy assembly and disassembly of the magnetic component 22. It is understood that the magnetic connector 252 may include magnetically conductive flat-head bolts or screws, etc., and no specific limitations are specified here.

[0047] Further, see Figure 1 , Figure 4 and Figure 5 The pump also includes an information recording module (not shown in the figure) and a signal transmission module (not shown in the figure). The information recording module is used to obtain the pump's operating frequency, calculate the pump oil volume per pumping cycle, and record the pump's operating time to calculate the total pump oil volume and other information.

[0048] The mounting sleeve 24 is externally equipped with a display 6. The information recording module is electrically connected to the display 6 to display the pump's operating information for easy viewing by staff. It is understood that the information recording module includes a motherboard and a chip mounted on the motherboard. The chip's connection terminal can be electrically connected to an A / D converter, and the output terminal of the A / D converter is then electrically connected to the display 6 via a microcontroller to display the corresponding information. It is also understood that the information recording module (not shown in the figure), the signal transmission module, and the display 6 are all integrated externally into the mounting sleeve 24 for convenient installation.

[0049] The signal transmission module is electrically connected to the information recording module and is used for wired / wireless connection with external signal receivers such as computers or PCs. The signal transmission module includes a USB interface and / or a wireless transmission module. The wireless transmission module is mounted on the motherboard, enabling wireless connection to the external signal receiver, while the USB interface enables wired connection. This allows for remote transmission of pump operating information, facilitating data statistics and printing operations by staff via external signal receivers such as computers, thus simplifying operation.

[0050] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A pump, characterized in that, include: The pump body includes a cylinder, an oil suction pipe located at the bottom of the cylinder, and a reversing mechanism located at the top of the cylinder. The chambers of the cylinder and the reversing mechanism are connected to form an inner cavity. The pump body has a movable component in the inner cavity. The movable component is slidably installed in the cylinder body. The movable component can move in the inner cavity and divide the cylinder body into a first chamber and a second chamber. The bottom of the suction pipe has an inlet, and the side of the top of the suction pipe has an outlet. Gas is introduced into the reversing mechanism, which can change the flow direction of the gas so that the gas enters the first or second chamber of the cylinder, thereby changing the movement direction of the piston in the cylinder, so as to realize the up and down reciprocating motion of the moving part, so that the oil suction pipe completes the oil suction and oil discharge action, so as to pump the liquid to be pumped from the inlet to the outlet. An indicator light assembly includes an indicator light and a power supply assembly. The indicator light is installed on the pump body. When the movable part moves in the inner cavity, the movable part can drive the power supply assembly and the indicator light to be energized or alternately energized and de-energized, so that the indicator light is constantly on or flashing. The power supply assembly includes a coil assembly and a magnetic component. The movable component is connected to the magnetic component via a connecting shaft. The coil assembly is mounted on the pump body and forms a movable cavity communicating with the inner cavity. The indicator light is connected to the end of the coil assembly away from the movable component. The magnetic component is connected to the movable component and extends into the movable cavity. The movable component can drive the magnetic component to reciprocate along the movable cavity. The indicator light assembly also includes a mounting sleeve. The pump body has a mounting hole that communicates with the inner cavity. The mounting sleeve is installed on the pump body through the mounting hole. The interior of the mounting sleeve communicates with the inner cavity. The indicator light and the coil assembly are both located in the mounting sleeve. The mounting sleeve includes a detachably connected straight cylindrical mounting sleeve and a stepped mounting sleeve. The mounting sleeve is sealed to the mounting hole through the stepped mounting sleeve. A first mounting cavity is formed inside the stepped mounting sleeve, and a second mounting cavity is formed inside the straight cylindrical mounting sleeve. The second mounting cavity communicates with the inner cavity through the first mounting cavity. The indicator light and the coil assembly are both located in the second mounting cavity, and the connecting shaft is engaged with the first mounting cavity. The stepped mounting sleeve has a first mating surface extending radially and a second mating surface extending axially at the position where it seals with the mounting hole. The inner wall surface of the mounting hole abuts against the second mating surface, and the outer end face of the mounting hole abuts against the first mating surface. The straight cylindrical mounting sleeve is fitted over the outside of the stepped mounting sleeve and abuts against the outer end face of the mounting hole. The coil assembly includes a coil mounting bracket and a coil. The coil mounting bracket mates with the straight cylindrical mounting sleeve and abuts against the stepped mounting sleeve. The coil mounting bracket has a through hole extending axially along the straight cylindrical mounting sleeve. A wire groove is formed on the outer periphery of the coil mounting bracket. The coil is wound in the wire groove. The indicator light is embedded in the through hole through a mounting base. The coil mounting bracket forms the movable cavity at one end of the mounting base near the magnetic component. The mounting base has a vent cavity communicating with the through hole and the second mounting cavity. The mounting sleeve has a vent hole. The through hole, the vent cavity, the second mounting cavity, and the vent hole are sequentially connected.

2. The pump according to claim 1, characterized in that, A first sealing ring is provided between the stepped mounting sleeve and the inner wall of the mounting hole, a second sealing ring is provided between the stepped mounting sleeve and the connecting shaft, and an adjusting washer is provided between the coil mounting bracket and the stepped mounting sleeve.

3. The pump according to claim 1, characterized in that, The straight cylindrical mounting sleeve is provided with a light diffusion cover on the top of the indicator light, and the light diffusion cover is detachably connected to the straight cylindrical mounting sleeve.

4. The pump according to claim 1, characterized in that, A guide belt is also provided between the stepped mounting sleeve and the connecting shaft. The connecting shaft has a mounting groove at one end near the indicator light. A magnetic connector is threaded into the mounting groove of the connecting shaft. The magnetic component is located in the mounting groove and at the end of the magnetic connector near the indicator light. The magnetic component is magnetically attracted to the magnetic connector.

5. The pump according to claim 1, characterized in that, It also includes an information recording module and a signal transmission module. A display is provided on the outside of the mounting sleeve. The information recording module is electrically connected to the display. The signal transmission module is electrically connected to the information recording module and is used for wireless / wired connection with an external signal receiver.

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