Hand-held oil drum metering pump

Abstract

The utility model relates to a hand -held oil drum metering pump, including the protective shell, still including setting handle in the left end surface of protective shell, the inside installation of protective shell has the motor, the lower extreme of protective shell is connected with locking hand wheel through screw thread, the joint of protective shell and locking hand wheel is equipped with the snap ring, the lower extreme of locking hand wheel is connected with the pump body tee bend, this pump body tee bend is horizontal T type pipe fitting, the output of motor is connected with structure stable subassembly, the lower extreme of pump body tee bend is connected with the outer tube body, the lower extreme of outer tube body installs the filter screen cover, the right extreme of pump body tee bend is connected with the liquid outlet pipe lock nut through screw thread, its inside is equipped with the liquid outlet subassembly, this novel through adopting the shaft coupling, bearing and the multi -point fixed support to the main shaft carry out multistage support, promote the coaxial degree, reduce the vibration, run more stable, the liquid outlet runner is equipped with the flow guide support and optimizes the flow direction, the impeller body is equipped with magnet and steel ball, reduces the rotation resistance, can output pulse signal, realizes the flow measurement of not needing external power supply.

Description

Technical Field

[0001] This utility model relates to the field of oil drum metering pump technology, specifically a handheld oil drum metering pump. Background Technology

[0002] Precise filling and quantitative dispensing are the core functions. It can automatically stop at the set amount and is used for adding lubricating oil, hydraulic oil, gear oil, antifreeze, etc. to mechanical equipment such as automobiles, motorcycles, generators, and agricultural machinery. It can also be used to precisely add chemical reagents, additives, solvents, etc. in laboratories or industrial production, avoiding waste and overfilling, and achieving on-demand dispensing. There is no need to lift and tip heavy oil drums. Simply insert the oil drum and use a hand pump to easily draw oil into containers or equipment. It is labor-saving, clean, and safe. It can also transfer oil or other compatible liquids between different containers and record the cumulative amount of oil added, which is convenient for inventory management or cost accounting.

[0003] Common handheld oil drum metering pumps often suffer from poor flow channel design during use. The lack of effective flow guidance structures when liquid turns or converges within the pump body easily generates turbulence and eddies, increasing flow resistance and potentially leading to unstable liquid output, bubbles, or noise. This negatively impacts pumping efficiency and user experience. Furthermore, many traditional metering pumps rely on externally powered sensors or complex electronic counting devices for flow data acquisition, requiring additional batteries or charging modules. This increases equipment cost and size, and introduces potential problems such as insufficient battery life and circuit damage from moisture. This limitation restricts their convenience and applicability, especially in environments without power or in scenarios requiring frequent mobile operation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a handheld oil drum metering pump. This pump achieves multi-stage support and alignment of the main shaft through couplings, bearings, and multi-point fixing brackets, reducing rotational runout and improving operational stability. Simultaneously, a flow guide bracket is installed in the liquid outlet channel to improve liquid direction, and the magnet and steel ball structure on the impeller body reduces rotational resistance and outputs pulse signals to support passive metering. This solves the problems of common handheld oil drum metering pumps with poor flow channel design, prone to turbulence, resulting in unstable liquid output, high noise, and affecting usability; metering often relies on external power supplies or battery-powered sensors, increasing cost and size; and having problems such as short battery life and susceptibility to moisture, hindering convenient application in scenarios without power or in mobile operations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a handheld oil drum metering pump, including a protective shell; it also includes a handle disposed on the left end face of the protective shell, a motor installed inside the protective shell, a locking handwheel connected to the lower end of the protective shell by a thread, a retaining ring provided at the connection between the protective shell and the locking handwheel, a pump body tee pipe connected to the lower end of the locking handwheel, the pump body tee pipe being a transverse T-shaped pipe fitting, and a structural stabilizing component connected to the output end of the motor;

[0006] The lower end of the pump body tee is connected to the outer tube body, and the lower end of the outer tube body is equipped with a filter screen cover; the right end of the pump body tee is connected to the outlet pipe lock nut by thread, and an outlet assembly is provided inside. The structural stabilization assembly forms a continuous mechanical connection with the transmission components inside the pump body tee and the outer tube body.

[0007] Furthermore, a display panel is provided on the pump body tee pipe, the surface of which is covered with a transparent plate, and a protective sleeve is provided at the connection between the display panel and the pump body tee pipe.

[0008] Furthermore, the structural stabilization component includes a coupling installed at the motor output end, with a short shaft inserted into the lower end of the coupling. Below the short shaft, a bearing and a skeleton oil seal are sequentially arranged, and the bearing and the skeleton oil seal are coaxially sleeved in the transmission path.

[0009] Furthermore, the structural stabilization component also includes a main shaft disposed inside the bearing and a fixed bracket disposed inside the outer tube body. The main shaft passes through multiple fixed brackets and is rotatably connected to each fixed bracket. The lower end of the main shaft is connected to the outer tube impeller.

[0010] Furthermore, the liquid outlet assembly includes a liquid outlet pipe connector located at the connection between the liquid outlet pipe lock nut and the pump body tee pipe. One end of the liquid outlet pipe connector is provided with an impeller body, and the impeller body is provided with an impeller core inside the impeller body. A retaining ring and a washer are provided at the connection between the liquid outlet pipe lock nut and the pump body tee pipe. A steel ball is provided between the impeller core and the impeller body, and a magnet is provided on the impeller core.

[0011] Furthermore, a flow guide bracket is provided at one end of the impeller body. The flow guide bracket is located in the internal flow channel of the cross branch of the pump body tee and is set along the direction of fluid flow.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The flow guide bracket in the liquid outlet assembly is set in the internal flow channel of the cross branch of the pump body tee and arranged along the fluid direction. This helps to guide the liquid to turn smoothly and reduce the generation of turbulence and eddies. Combined with the steel ball structure between the impeller body and the impeller main body, it can reduce rotational resistance and make the impeller run more smoothly. At the same time, the impeller body is equipped with a magnet. Combined with the sensing element in the external display panel, it can generate a pulse signal when the impeller rotates. This provides a physical basis for realizing real-time acquisition and cumulative measurement of liquid flow rate. Data acquisition can be completed without an additional power source.

[0014] 2. By setting up a structurally stable assembly consisting of a coupling, short shaft, bearings, skeleton oil seal, and multi-point fixed brackets, multi-stage support and alignment between the motor output end and the impeller are achieved. The main shaft passes through multiple fixed brackets and forms a rotating connection, effectively limiting the radial runout and axial offset of the transmission shaft during high-speed rotation, and improving the coaxiality and operational smoothness of the overall transmission system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a partial cross-sectional structural diagram of the present invention;

[0019] Figure 5 This is a partial exploded structural diagram of the present invention;

[0020] Figure 6 This is a schematic diagram of the partially exploded structure of this utility model.

[0021] In the diagram: 1. Protective shell; 2. Motor; 3. Locking handwheel; 4. Handle; 5. Snap ring; 6. Coupling; 7. Short shaft; 8. Bearing; 9. Skeleton oil seal; 10. Outer tube body; 11. Main shaft; 12. Fixed bracket; 13. Outer tube impeller; 14. Filter screen; 15. Display panel; 16. Pump body tee; 17. Flow guide bracket; 18. Impeller body; 19. Magnet; 20. Discharge pipe lock nut; 21. Discharge pipe connector; 22. Impeller body; 23. Steel ball. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 This embodiment of a handheld oil drum metering pump includes a protective shell 1; it also includes a handle 4 disposed on the left end face of the protective shell 1, a motor 2 installed inside the protective shell 1, a locking handwheel 3 connected to the lower end of the protective shell 1 by a thread, a retaining ring 5 provided at the connection between the protective shell 1 and the locking handwheel 3, a pump body tee pipe 16 connected to the lower end of the locking handwheel 3, the pump body tee pipe 16 being a transverse T-shaped pipe, and a structural stabilizing component connected to the output end of the motor 2.

[0024] In this embodiment, the pump achieves multi-stage support and alignment of the transmission system by setting up a structural stabilization component including a coupling 6, a bearing 8, and a multi-point fixing bracket 12, effectively suppressing the jumping and offset when the main shaft 11 rotates and improving the smoothness of operation. At the same time, a flow guide bracket 17 is set in the liquid outlet channel to optimize the liquid direction, and the structure of magnet 19 and steel ball 23 on the impeller body 18 is used to achieve low-resistance rotation and pulse signal output, providing a basis for passive flow metering.

[0025] Please see Figures 1-6 In this embodiment, in order to stabilize the main shaft 11 with the coupling 6, bearing 8 and multiple fixed brackets 12, so that the motor 2 drives the impeller more stably and without shaking, and the operation is smoother, the lower end of the pump body three-way pipe 16 in this embodiment is connected to the outer pipe body 10, and the lower end of the outer pipe body 10 is equipped with a filter screen cover 14; the right end of the pump body three-way pipe 16 is connected to the liquid outlet pipe lock nut 20 by thread, and the liquid outlet assembly is provided inside. The structural stabilization assembly forms a continuous mechanical connection with the transmission components inside the pump body three-way pipe 16 and the outer pipe body 10.

[0026] In this embodiment, the pump body tee 16 connects the outer tube body 10 and the outlet pipe lock nut 20, serving as the main support and flow channel connection. The outer tube body 10 is used to accommodate the transmission components and extends to the bottom of the oil. The filter screen 14 is installed at the lower end of the outer tube body 10 to block impurities from entering the pump and prevent blockage. The outlet pipe lock nut 20 fixes the outlet assembly with threads to ensure reliable connection sealing. The structural stability component supports the main shaft 11 at multiple points, so that the power of the motor 2 is smoothly transmitted to the impeller. The whole structure forms a continuous mechanical connection from the motor 2 to the impeller, ensuring that the rotating components are coaxial and stable during operation and reducing vibration. The pump body tee 16 also carries the display panel 15 and the flow guide bracket 17 to realize the functions of flow monitoring and flow channel guidance. All components work together to achieve stable liquid pumping and metering in handheld mode.

[0027] It should be noted that the structural stabilization component includes a coupling 6 installed at the output end of the motor 2. A short shaft 7 is inserted into the lower end of the coupling 6. A bearing 8 and a skeleton oil seal 9 are sequentially installed below the short shaft 7. The bearing 8 and the skeleton oil seal 9 are coaxially sleeved in the transmission path. The structural stabilization component also includes a main shaft 11 installed inside the bearing 8 and a fixed bracket 12 installed inside the outer tube body 10. The main shaft 11 passes through multiple fixed brackets 12 and is rotatably connected to each fixed bracket 12. The lower end of the main shaft 11 is connected to the outer tube impeller 13.

[0028] Please see Figures 1-6 In this embodiment, to achieve smooth oil flow turning with the flow guide bracket 17 at the outlet end, the impeller is equipped with a magnet 19 and steel balls 23, resulting in low resistance during rotation and the generation of signals for flow measurement. The outlet assembly in this embodiment includes an outlet pipe connector 21 located at the connection between the outlet pipe lock nut 20 and the pump body tee 16. One end of the outlet pipe connector 21 is equipped with an impeller body 22, inside which is an impeller body 18. A retaining ring and a washer are provided at the connection between the outlet pipe lock nut 20 and the pump body tee 16. Steel balls 23 are located between the impeller body 18 and the impeller body 22. A magnet 19 is located on the impeller body 18, and a flow guide bracket 17 is located at one end of the impeller body 18 to guide the flow. The bracket 17 is located in the internal flow channel of the cross branch of the pump body tee pipe 16, and is set along the direction of fluid flow. The coupling 6 is used to connect the output end of the motor 2 to the short shaft 7 to transmit rotational power. The short shaft 7 is used to connect the coupling 6 to the main shaft 11 to realize power transition transmission. The bearing 8 is used to support the main shaft 11, keep the rotation center stable, and reduce radial sway. The skeleton oil seal 9 is used to seal the part of the main shaft 11 that protrudes to prevent liquid from seeping into the area of ​​the motor 2 along the shaft. The main shaft 11 is used to transmit torque and drive the outer tube impeller 13 to rotate. The fixed bracket 12 is used to fix the position of the main shaft 11, provide multi-point support, and enhance rotational stability. The outer tube impeller 13 rotates under the drive of the main shaft 11, pushing the liquid to flow upward.

[0029] In this embodiment, the outlet pipe connector 21 is used to connect the outlet pipe lock nut 20 and the impeller body 22 to form a fluid channel. The impeller body 22 provides installation space and rotational support for the impeller body 18. The impeller body 18 rotates under the push of the liquid, driving the magnet 19 to rotate synchronously. The steel ball 23 is set between the impeller body 18 and the impeller body 22 to reduce the frictional resistance when the two rotate relative to each other. The magnet 19 rotates with the impeller body 18 and triggers a change in the magnetic field outward to generate a metering pulse signal. The outlet pipe lock nut 20 is used to fix the outlet assembly to ensure a firm connection. The retaining ring is used to limit the axial displacement of the outlet pipe connector 21 to prevent loosening. The gasket is used to enhance the sealing of the connection between the outlet pipe lock nut 20 and the pump body tee pipe 16. The flow guide bracket 17 is used to guide the liquid flow direction, reduce flow turbulence, and improve the stability of the flow channel.

[0030] It should be noted that a display panel 15 is provided on the pump body tee pipe 16. The surface of the display panel 15 is covered with a transparent plate, and a protective sleeve is provided at the connection between the display panel 15 and the pump body tee pipe 16.

[0031] The working principle of the above embodiments is as follows:

[0032] In use, press the start button, and motor 2 starts running. Power is transmitted to short shaft 7 through coupling 6. Short shaft 7 transmits rotational motion to main shaft 11. Main shaft 11 rotates stably under the support of bearing 8 and multiple fixed supports 12. The skeleton oil seal 9 prevents liquid from seeping in. Main shaft 11 drives outer tube impeller 13 to rotate in the oil, generating a suction effect. Oil enters outer tube body 10 from filter screen 14, is pushed upward by impeller, and enters the vertical channel of pump body three-way pipe 16. Oil turns into the horizontal flow channel in pump body three-way pipe 16, and the guide branch... The frame 17 guides the liquid to flow smoothly and reduces turbulence. At the same time, the oil drives the impeller body 18 to rotate. The steel balls 23 between the impeller body 18 and the impeller main body 22 reduce frictional resistance. The magnet 19 on the impeller body 18 rotates synchronously with it, periodically triggering the sensing element in the display panel 15 to generate a pulse signal. After the signal is processed, the flow rate is cumulatively displayed on the display screen. The oil continues to flow and enters the outlet pipe lock nut 20 through the outlet pipe connector 21. The snap ring and washer ensure the connection is sealed. The oil is finally discharged through the outlet pipe, completing the quantitative pumping process.

[0033] It should be noted that the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld oil drum metering pump, comprising a protective housing (1); characterized in that: It also includes a handle (4) on the left end face of the protective shell (1), a motor (2) is installed inside the protective shell (1), a locking handwheel (3) is connected to the lower end of the protective shell (1) by a thread, a retaining ring (5) is provided at the connection between the protective shell (1) and the locking handwheel (3), a pump body tee pipe (16) is connected to the lower end of the locking handwheel (3), the pump body tee pipe (16) is a transverse T-shaped pipe, and a structural stabilizing component is connected to the output end of the motor (2); The lower end of the pump body tee (16) is connected to the outer tube body (10), and the lower end of the outer tube body (10) is equipped with a filter screen (14); the right end of the pump body tee (16) is connected to the outlet pipe lock nut (20) by thread, and an outlet assembly is provided inside it. The structural stabilization assembly forms a continuous mechanical connection with the transmission components inside the pump body tee (16) and the outer tube body (10).

2. The handheld oil drum metering pump according to claim 1, characterized in that: A display panel (15) is provided on the pump body tee pipe (16). The surface of the display panel (15) is covered with a transparent plate, and a protective sleeve is provided at the connection between the display panel (15) and the pump body tee pipe (16).

3. A handheld oil drum metering pump according to claim 2, characterized in that: The structural stabilization component includes a coupling (6) installed at the output end of the motor (2). A short shaft (7) is inserted into the lower end of the coupling (6). A bearing (8) and a skeleton oil seal (9) are arranged in sequence below the short shaft (7). The bearing (8) and the skeleton oil seal (9) are coaxially sleeved in the transmission path.

4. A handheld oil drum metering pump according to claim 3, characterized in that: The structural stabilization component also includes a main shaft (11) disposed inside the bearing (8) and a fixed bracket (12) disposed inside the outer tube body (10). The main shaft (11) passes through multiple fixed brackets (12) and is rotatably connected to each fixed bracket (12). The lower end of the main shaft (11) is connected to the outer tube impeller (13).

5. A handheld oil drum metering pump according to claim 4, characterized in that: The liquid discharge assembly includes a liquid discharge pipe connector (21) located at the connection between the liquid discharge pipe lock nut (20) and the pump body tee pipe (16). One end of the liquid discharge pipe connector (21) is provided with an impeller body (22). Inside the impeller body (22) is an impeller body (18). A retaining ring and a washer are provided at the connection between the liquid discharge pipe lock nut (20) and the pump body tee pipe (16). A steel ball (23) is provided between the impeller body (18) and the impeller body (22). A magnet (19) is provided on the impeller body (18).

6. A handheld oil drum metering pump according to claim 5, characterized in that: One end of the impeller body (18) is provided with a flow guide bracket (17), which is located in the internal flow channel of the cross branch of the pump body tee (16) and is set along the direction of fluid flow.

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