Hand-cranking oil pumping device for oil tank
By designing two sets of gears with different gear ratios in the hand-cranked oil pumping device, the problem of the inability to control the oil pumping speed of the hand-cranked oil pump was solved, achieving controllability of the oil pumping speed, avoiding oil spillage and reducing workload.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-07
AI Technical Summary
Existing hand-cranked oil pumps cannot control the pumping speed during the pumping process, resulting in oil overflow and waste.
Design a hand-cranked oil pumping device that includes an oil pumping mechanism and a hand-cranked mechanism. The device achieves fast and slow oil pumping by combining two sets of driving gears and driven gears with different gear ratios. The oil pumping speed is controlled by connecting the first and second hand-cranked shafts to the crank handle.
It effectively controls the oil extraction speed, prevents oil spillage, reduces the workload of staff, and improves oil extraction efficiency.
Smart Images
Figure CN224093554U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a hand -operated oil pumping device for oil tank relates to oil pumping device technical field. BACKGROUND
[0002] In the oil tank, oil is taken, generally will adopt the oil pumping pump, the oil pumping pump is most common in manual oil pumping pump, and the most common in manual type oil pumping pump is hand -operated and pressure lever type, utilizes hand -operated or to press down mode and carries out oil. The continuity of hand -operated oil is superior to pressure lever type, and thus is more widely used. At present, the hand -operated oil pumping pump is mainly connected by oil suction pipe, vane pump and oil outlet pipe, and when pumping oil, the oil is directly pumped out from the oil outlet pipe by shaking the vane pump, and after use, the oil in the pipe and the vane pump flows back to the oil tank; In the process of pumping oil, the staff needs to shake the hand lever repeatedly, therefore, the hand lever and the vane adopt gear set with large gear ratio to reduce the working intensity of the staff, but the gear set with large gear ratio cannot control the pumping speed when the oil pumping is completed, and the excessive pumping speed will cause the pumped oil to overflow at the oil tank opening where the oil is received, resulting in waste of oil. SUMMARY
[0003] The utility model discloses a hand -operated oil pumping device for oil tank can control pumping speed.
[0004] The utility model discloses a hand -operated oil pumping device for oil tank can control pumping speed, it is including oil pumping mechanism and hand -operated mechanism, oil pumping mechanism including the shell with oil inlet and oil outlet and install in the shell vane, hand -operated mechanism and vane shaft connection, the shaft of vane is along its axial arrangement first driven gear and second driven gear, vane shaft around setting with parallel first hand -operated shaft and second hand -operated shaft, first hand -operated shaft is set with the first driving gear meshing of first driven gear, second hand -operated shaft is set with the second driving gear meshing of second driven gear, the ratio of the tooth number ratio of first driving gear and first driven gear and the ratio of the tooth number ratio of second driving gear and second driven gear are different, first hand -operated shaft and second hand -operated shaft respectively wear out the shell, and can be connected with the handle.
[0005] Further, the diameters and the tooth numbers of the first driven gear and the second driven gear are respectively same.
[0006] Further, the shell is composed of the vane shell and the gear shell connected with each other, a partition is arranged between the vane shell and the gear shell, the oil inlet and the oil outlet are arranged on the vane shell, the vane is arranged in the vane shell, and the vane shaft penetrates into the gear shell and is provided with a dynamic sealing element between the partition and the vane shaft; the first driven gear and the second driven gear on the vane shaft are located in the gear shell, the first driving gear and the second driving gear are arranged in the gear shell through the first hand -operated shaft and the second hand -operated shaft respectively, and the first hand -operated shaft and the second hand -operated shaft respectively penetrate out of the gear shell and are connected with the handle.
[0007] Further, the end surface of the part of the first and second hand shafts that penetrates the housing is provided with a socket, the periphery of the first and second hand shafts is provided with a first pin hole that penetrates and communicates with the respective socket, the handle end can be inserted into the socket of the first and second hand shafts, and the handle is provided with a second pin hole corresponding to the first pin hole, and the latch can be inserted into the first and second pin holes to connect the handle with the first or second hand shaft.
[0008] The hand crank mechanism in the utility model is provided with two groups of hand shafts, the two groups of hand shafts are respectively engaged with the driven gears on the impeller shaft through two driving gears with different numbers of teeth, the handle is installed in the gear set with high rotating speed to pump oil during the oil pumping process, so as to reduce the working intensity, and the handle is installed in the gear set with low rotating speed to pump oil when the oil tank that receives oil is close to full, so as to control the oil pumping speed and avoid oil overflow. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the front view of the utility model embodiment;
[0010] Figure 2 It is Figure 1 It is the sectional view along the direction A-A;
[0011] Figure 3 It is Figure 1 It is the front view of the hand crank mechanism;
[0012] Figure 4 It is Figure 1 It is the structure schematic view of the handle part
[0013] Wherein: 1, the housing, 2, the impeller shell, 3, the oil inlet, 4, the oil outlet, 5, the impeller, 6, the partition, 7, the gear shell, 8, the impeller shaft, 9, the dynamic sealing element, 10, the first driven gear, 11, the second driven gear, 12, the first hand shaft, 13, the first driving gear, 14, the second hand shaft, 15, the second driving gear, 16, the socket, 17, the handle, 18, the first pin hole, 19, the latch, 20, the fixed ring, 21, the second pin hole. DETAILED DESCRIPTION
[0014] To Figure 1 The up, down, left and right, front and back directions of the embodiment are defined.
[0015] As shown in the figure, the embodiment includes an oil pumping mechanism and a hand crank mechanism, the oil pumping mechanism includes a shell 1, the shell 1 is composed of an impeller shell 2 and a gear shell 7, a partition plate 6 is arranged between the two, and the impeller shell 2 and the gear shell 7 are respectively installed on the left and right ends of the partition plate 6 through welding. An oil inlet 3 is arranged at the lower end of the impeller shell 2, the oil inlet 3 is communicated with the inner cavity of the impeller shell 2, and in use, the oil inlet 3 is communicated with an oil tank from which oil is to be pumped. An oil outlet 4 is arranged at the upper end of the impeller shell 2, the oil outlet 4 is communicated with the inner cavity of the impeller shell 2, and in use, the oil outlet 4 is communicated with an oil tank that receives oil. An impeller 5 is arranged in the inner cavity of the impeller shell 2, and the impeller 5 is fixedly connected with an impeller shaft 8 at the center position, in use, the impeller 5 can rotate with the impeller shaft 8 to generate centrifugal force in the inner cavity of the impeller shell 2, so as to pump and pressurize oil from the oil inlet 3 to the oil outlet 4.
[0016] The impeller shaft 8 penetrates the partition plate 6 to the right and extends into the inner cavity of the gear shell 7, and is connected with the right end face of the gear shell 7 through a bearing; a dynamic sealing piece 9 is arranged at the position where the impeller shaft 8 contacts the partition plate 6, so as to avoid oil leakage from the impeller shell 2 to the gear shell 7.
[0017] A first driven gear 10 is arranged on the impeller shaft 8, a second driven gear 11 is arranged on the left side of the first driven gear 10, and the two driven gears are distributed along the axial direction of the impeller shaft 8, so as to drive the impeller shaft 8 to rotate; in the embodiment, the diameters and the number of teeth of the two driven gears are the same. A hand crank mechanism is arranged on the outer periphery of the impeller shaft 8, the hand crank mechanism includes a first hand crank shaft 12, the first hand crank shaft 12 is arranged above the impeller shaft 8 and is parallel to the impeller shaft 8, the right end is rotatably connected with the partition plate 6 through a bearing, and the first hand crank shaft 12 is fixedly connected with a first driving gear 13 which is engaged with the first driven gear 10 on the outer periphery; a second hand crank shaft 14 is arranged below the impeller shaft 8, the second hand crank shaft 14 is parallel to the impeller shaft 8, the right end is rotatably connected with the partition plate 6 through a bearing, and the second hand crank shaft 14 is fixedly connected with a second driving gear 15 which is engaged with the second driven gear 11 on the outer periphery. In the embodiment, the number of teeth and the diameter of the first driving gear 13 are greater than those of the second driving gear 15, so the ratio of the number of teeth of the first driving gear 13 to the first driven gear 10 is less than the ratio of the number of teeth of the second driving gear 13 to the second driven gear 11, and in use, the rotation speed of the impeller shaft 8 when the first driving gear 13 is engaged with the first driven gear 10 is higher than the rotation speed when the second driving gear 13 is engaged with the second driven gear 11.
[0018] The right ends of both the first hand crank shaft 12 and the second hand crank shaft 14 extend through the gear housing 7 and are rotatably connected to it. Insertion holes 16 are provided on the right end faces of the portions of the two hand crank shafts extending through the gear housing 7. A first pin hole 18 is provided above the insertion hole 16, extending from the outer circumference of each hand crank shaft into the insertion hole. A crank handle 17 is provided on the right side of the first hand crank shaft 12. The left end of the crank handle 17 matches the shape of the insertion hole 16 and can be inserted into it. A second pin hole 21 is provided on the portion of the left end of the crank handle 17 that is inserted into the insertion hole 16. The second pin hole 21 corresponds to the first pin hole 18. In use, a pin 19 is inserted into the first pin hole 18 and the second pin hole 21 to fix the crank handle 17.
[0019] In this embodiment, a fixing ring 20 is provided at the right end of the gear housing 7 where it connects to the two hand crank shafts. The fixing ring 20 is rotatably connected to the two hand crank shafts, which can increase the stability of the two hand crank shafts during use.
[0020] In this embodiment, the oil inlet 3 is first connected to the oil tank to be pumped, and the oil outlet 4 is connected to the oil tank to receive the oil. Then, the crank handle 17 is inserted into the insertion hole 16 of the first hand crank shaft 12, and the crank handle 17 is fixed by the pin 19. Then, the crank handle 17 is rotated, and the impeller 5 is rotated through the first drive gear 13 to perform rapid oil pumping. When the oil tank to receive the oil is almost full, the rotation is stopped and the crank handle 17 is removed. The crank handle 17 is inserted into the insertion hole 16 of the second hand crank shaft 14, and the impeller 5 is rotated through the second drive gear 15 to perform slow oil pumping until the oil tank to receive the oil is full.
Claims
1. A hand-cranked oil pumping device for an oil tank, comprising an oil pumping mechanism and a hand-cranking mechanism, wherein the oil pumping mechanism includes a housing with an oil inlet and an oil outlet, and an impeller installed inside the housing, and the hand-cranking mechanism is connected to the impeller shaft, characterized in that: A first driven gear and a second driven gear are arranged axially on the shaft of the impeller. A first hand-cranked shaft and a second hand-cranked shaft are arranged parallel to the impeller shaft. A first driving gear meshes with the first driven gear on the first hand-cranked shaft, and a second driving gear meshes with the second driven gear on the second hand-cranked shaft. The ratio of the number of teeth of the first driving gear and the first driven gear is different from the ratio of the number of teeth of the second driving gear and the second driven gear. The first hand-cranked shaft and the second hand-cranked shaft respectively extend out of the outer casing and can be connected to the crank handle.
2. The hand-cranked oil pumping device for the oil tank according to claim 1, characterized in that: The first driven gear and the second driven gear have the same diameter and number of teeth, respectively.
3. The hand-cranked oil pumping device for the oil tank according to claim 1 or 2, characterized in that: The outer casing consists of an impeller housing and a gear housing connected to each other, with a partition between them. The oil inlet and outlet are located on the impeller housing, the impeller is installed inside the impeller housing, and the impeller shaft passes through the gear housing. A dynamic seal is provided between the impeller shaft and the partition. The first driven gear and the second driven gear on the impeller shaft are located inside the gear housing. The first driving gear and the second driving gear are respectively installed inside the gear housing via a first hand crank and a second hand crank. The first hand crank and the second hand crank pass through the gear housing and are connected to a crank handle.
4. The hand-cranked oil pumping device for the oil tank according to claim 1 or 2, characterized in that: The first and second hand crank shafts have insertion holes on their end faces that protrude from the housing. The first and second hand crank shafts have first pin holes around their peripheries that are inserted into the insertion holes and communicate with each other. The end of the crank handle can be inserted into the insertion holes of the first and second hand crank shafts, and the crank handle has a second pin hole that corresponds to the first pin hole. A pin can be inserted into the first and second pin holes to connect the crank handle to the first or second hand crank shaft.