Gear oil pump convenient to move
By designing a combination of airbags, casters, and various mechanisms, the problems of inconvenient movement and inaccurate positioning of traditional gear oil pumps have been solved, achieving easy movement and stable positioning, thus improving operating efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI HUIYI HYDRAULIC TECH
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional gear oil pumps lack a dedicated moving mechanism, resulting in laborious handling, easy deviation, inaccurate positioning, large space occupation, and a prominent contradiction between shock absorption and rigidity, which affects operating efficiency and equipment life.
A mobile system was designed, which includes an airbag, casters, a limiting mechanism, a pushing mechanism, a driving mechanism, a positioning mechanism, and a guiding mechanism. Through the coordination of the airbag buffer, the casters guiding, and the limiting and positioning mechanisms, the equipment can be moved flexibly and positioned stably.
It significantly reduces handling time and labor costs, improves operational efficiency, enhances the stability and positioning accuracy of equipment in complex terrain, and extends the service life of the equipment.
Smart Images
Figure CN224260811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear oil pump technology, and more specifically, to a gear oil pump that is easy to move. Background Technology
[0002] Gear pumps are widely used in industrial production for fluid transportation applications, such as hydraulic system oil supply and mechanical equipment lubrication. Traditional gear pumps mostly use a fixed base design, which ensures operational stability, but has significant limitations in mobile operation requirements (such as engineering machinery maintenance and multi-station oil supply in workshops).
[0003] In practical use, without a dedicated mobile mechanism, external tools are needed for handling, which is time-consuming and labor-intensive. For example, when adding hydraulic oil to multiple excavators on a construction site, repeated hoisting is required, increasing operating costs. Moreover, the existing simple mobile wheel design is prone to deviation due to the lack of guidance, and has poor adaptability in complex terrains such as uneven ground and narrow passages, resulting in a high risk of equipment collision damage. In terms of positioning, it relies on manual braking or simple outrigger fixation, which cannot quickly and accurately lock the position. During operation, it is prone to displacement due to ground vibration or external forces (such as oil pipe pulling), affecting the accuracy of liquid delivery and even causing malfunctions. In terms of spatial adaptability, the propulsion mechanism (such as the push handle) is exposed for a long time, occupying operating space. It is easy to interfere with transport carts and operators next to the assembly line in the workshop. When deployed in narrow spaces (such as the bottom of the equipment), it is difficult to pass through because it cannot be stored. At the same time, there is a contradiction between shock absorption and structural rigidity. The shock absorption components (such as rubber pads) during movement are separated from the rigid support (such as metal base) during operation, resulting in bulky equipment and complex structure. Traditional shock absorption wheels are prone to deformation under heavy loads, while rigid legs lack cushioning. The impact on the oil pump body during movement is large, which accelerates the wear of gears and bearings. To address this, a gear oil pump that is easy to move is proposed. Utility Model Content
[0004] The purpose of this utility model is to address the problem that currently existing technologies require external tools for transportation due to the lack of a dedicated mobile mechanism, which is time-consuming and labor-intensive. For example, when adding hydraulic oil to multiple excavators on a construction site, repeated hoisting is required, increasing operating costs. This invention provides a portable gear oil pump to solve the problems mentioned in the background art.
[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0006] The present invention is as follows: a movable gear oil pump, comprising a base, a gear oil pump body threadedly mounted on the top of the base, a moving mechanism provided at the bottom of the base, and a limiting mechanism provided on the inner wall of the base; the moving mechanism includes an airbag, a first guide rod, and a universal wheel; four sets of airbags are provided, the four sets of airbags are fixedly installed at the bottom of the base; the first guide rod is slidably installed on the inner wall of the bottom of the base near the airbag, and the bottom of the first guide rod is fixedly installed with the universal wheel, the universal wheel being located below the airbag; the limiting mechanism includes a sliding groove, a limiting slot, a slider, and a limiting plate; the sliding groove is opened on one side of the base, and the limiting slot is opened in the sliding groove on the inner wall of the base; the slider is slidably installed on the inner wall of the base through the opening of the sliding groove and the limiting slot; the limiting plate is fixedly installed on one side of the base, and the limiting plate is movably connected to the slider.
[0007] As a preferred technical solution of this utility model, a pushing mechanism is provided on the side of the slider away from the base, and a driving mechanism is provided at the bottom of the base.
[0008] As a preferred technical solution of this utility model, the bottom of the base is provided with a positioning mechanism and a guiding mechanism.
[0009] As a preferred technical solution of this utility model, the pushing mechanism includes a dual-shaft frame, a connecting plate, a connecting block, and a push handle. The dual-shaft frame is fixedly installed on the side of the slider away from the base. Two sets of connecting plates are provided, and the two sets of connecting plates are respectively rotatably installed on the top and bottom of the inner wall of the dual-shaft frame. The side of the two sets of connecting plates away from the dual-shaft frame is rotatably installed with the connecting block. The dual-shaft frame, connecting plate, and connecting block have a parallelogram shape. The inner wall of the connecting block is fixedly installed with the push handle.
[0010] As a preferred technical solution of this utility model, the driving mechanism includes a fixed plate, forward and reverse screws, a motor and a movable frame. The fixed plate is fixedly installed in the middle of the bottom of the base. One side of the fixed plate is fixedly installed with the motor. The inner wall of the fixed plate is rotatably installed with the forward and reverse screws. The output end of the motor is fixedly installed with the forward and reverse screws. The two ends of the surface of the forward and reverse screws are threadedly installed with the movable frame.
[0011] As a preferred technical solution of this utility model, the positioning mechanism includes a connecting rod, a balance block, and a support plate. The connecting rod is provided in two sets, and the two sets of connecting rods are respectively rotatably installed on the inner wall of the bottom of the movable frame. The side of the connecting rod away from the movable frame is rotatably installed relative to each other, and the two sides of the connecting rod away from the movable frame are rotatably installed with the balance block. The two sides of the balance block are fixedly installed with the support plate.
[0012] As a preferred technical solution of this utility model, the guiding mechanism includes a fixed small plate, a second guide rod, and a connecting long rod. The fixed small plate is fixedly installed on both sides of the bottom of the base, and the inner wall of the fixed small plate is fixedly installed with the second guide rod. Two sets of connecting long rods are provided, and the two sets of connecting long rods are fixedly installed on both sides of the movable frame. The side of the connecting long rod away from the movable frame is slidably installed on the surface of the second guide rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. By setting up a moving mechanism, a limiting mechanism, a pushing mechanism, a driving mechanism, a positioning mechanism, and a guiding mechanism, the equipment has both flexible movement and stable positioning functions, which can meet the needs of various scenarios such as engineering machinery maintenance, multi-station oil supply in workshops, and on-site operation of agricultural machinery. Especially in scenarios where the working position needs to be changed frequently, compared with traditional fixed gear oil pumps, it can significantly reduce handling time and labor costs and improve work efficiency.
[0015] 2. By incorporating airbags, a first guide rod, and casters, the four sets of airbags can cushion ground bumps during movement, reducing vibration and impact on the gear oil pump body and extending the equipment's service life. The first guide rod provides sliding limit for the casters, and together with the casters' 360° turning capability, ensures directional stability when the equipment moves in narrow spaces or complex terrain, preventing deviation and solving the problems of easy jamming and difficult turning of traditional equipment. Attached Figure Description
[0016] Figure 1 A schematic diagram of the structure of the portable gear oil pump provided by this utility model;
[0017] Figure 2 A bottom view of the portable gear oil pump provided by this utility model;
[0018] Figure 3 A cross-sectional view of the portable gear oil pump provided by this utility model;
[0019] Figure 4 A partial structural diagram of the portable gear oil pump provided by this utility model.
[0020] The diagram shows: 1. Base; 2. Gear oil pump body; 3. Moving mechanism; 31. Airbag; 32. First guide rod; 33. Caster wheel; 4. Limiting mechanism; 41. Slide groove; 42. Limiting groove; 43. Slider; 44. Limiting plate; 5. Pushing mechanism; 51. Double shaft frame; 52. Connecting plate; 53. Connecting block; 54. Push handle; 6. Drive mechanism; 61. Fixed plate; 62. Forward and reverse screws; 63. Motor; 64. Moving frame; 7. Positioning mechanism; 71. Connecting rod; 72. Balance block; 73. Support plate; 8. Guide mechanism; 81. Fixed plate; 82. Second guide rod; 83. Connecting rod. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0022] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0025] like Figures 1-4As shown, this embodiment proposes a portable gear oil pump, including a base. A gear oil pump body 2 is threaded onto the top of the base 1. A moving mechanism 3 is provided at the bottom of the base 1, and a limiting mechanism 4 is provided on the inner wall of the base 1. A pushing mechanism 5 is provided on the side of the slider 43 away from the base 1, and a driving mechanism 6 is provided at the bottom of the base 1. The moving mechanism 3 includes an airbag 31, a first guide rod 32, and casters 33. Four sets of airbags 31 are fixedly installed at the bottom of the base 1. The first guide rod 32 is slidably installed on the inner wall of the bottom of the base 1 near the airbags 31. The bottom of the base 2 is fixedly installed with the caster 33, which is located below the airbag 31. The limiting mechanism 4 includes a slide groove 41, a limiting groove 42, a slider 43, and a limiting plate 44. The slide groove 41 is opened on one side of the base 1, and the limiting groove 42 is opened in the slide groove 41 on the inner wall of the base 1. The slider 43 is slidably installed on the inner wall of the base 1 through the opening of the slide groove 41 and the limiting groove 42. The limiting plate 44 is fixedly installed on one side of the base 1 and is movably connected to the slider 43. The pushing mechanism 5 includes a double shaft frame 51, a connecting plate 52, a connecting block 53, and a push handle 54. The double shaft frame 51 is fixedly installed on the side of the slider 43 away from the base 1. Two sets of connecting plates 52 are provided, and the two sets of connecting plates 52 are rotatably installed on the double shaft frame 51. The top and bottom of the inner wall of the frame 51, two sets of connecting plates 52 are rotatably mounted to the connecting block 53 on the side away from the double shaft frame 51. The double shaft frame 51, connecting plates 52 and connecting block 53 are parallelogram-shaped. The inner wall of the connecting block 53 is fixedly mounted to the push handle 54. The drive mechanism 6 includes a fixed plate 61, forward and reverse screws 62, a motor 63 and a moving frame 64. The fixed plate 61 is fixedly mounted in the middle of the bottom of the base 1. One side of the fixed plate 61 is fixedly mounted to the motor 63. The inner wall of the fixed plate 61 is rotatably mounted to the forward and reverse screws 62. The output end of the motor 63 is fixedly mounted to the forward and reverse screws 62. The two ends of the surface of the forward and reverse screws 62 are threadedly mounted to the moving frame 64. The positioning mechanism 7 includes a connecting rod 71, a balance block 72 and a support plate 7. 3. Two sets of connecting rods 71 are provided. The two sets of connecting rods 71 are rotatably installed on the inner wall of the bottom of the movable frame 64. The side of the connecting rods 71 away from the movable frame 64 is rotatably installed relative to each other. The two sides of the connecting rods 71 away from the movable frame 64 are rotatably installed with the balance block 72. The two sides of the balance block 72 are fixedly installed with the support plate 73. The guide mechanism 8 includes a fixed small plate 81, a second guide rod 82 and a connecting long rod 83. The fixed small plate 81 is fixedly installed on both sides of the bottom of the base 1. The inner wall of the fixed small plate 81 is fixedly installed with the second guide rod 82. Two sets of connecting long rods 83 are provided. The two sets of connecting long rods 83 are fixedly installed on both sides of the movable frame 64. The side of the connecting long rod 83 away from the movable frame 64 is slidably installed on the surface of the second guide rod 82.
[0026] like Figure 2 , Figure 3and Figure 4 As shown, the four sets of airbags 31 can buffer the ground bumps during movement, reduce the vibration impact on the gear oil pump body 2, and extend the service life of the equipment. The first guide rod 32 provides sliding limit for the universal wheel 33. With the 360° turning capability of the universal wheel 33, it ensures the stability of the equipment when moving in narrow spaces or complex terrain, avoids deviation, and solves the problems of easy jamming and difficult turning when moving traditional equipment. When the connecting plate 52 is pushed into the base 1, the slider 43 slides into the base 1 along the sliding groove 41. The connecting plate 52 can be stored in the inner wall of the base 1. The limiting groove 42 and the limiting plate 44 can lock the position of the slider 43 to prevent the pushing mechanism 5 from loosening after being stored. This design reduces space occupation when the equipment is not moving, avoids the risk of bumps caused by exposed components such as the push handle 54, and is suitable for narrow working environments. The dual-axis frame 51 and connecting plate 52 form a parallelogram structure, which can flexibly adjust the angle of the push handle 54 to adapt to different operator heights and working space sizes, greatly improving the human-machine interaction experience. At the same time, through the connecting block 53, it is ensured that the pushing force of the push handle 54 can be stably transmitted to the base 1, making the equipment easier to move and significantly improving the ease of operation. The motor 63 drives the forward and reverse screws 62 to rotate, driving the two moving frames 64 to move synchronously in opposite directions. With the help of the connecting rod 71 and the balance block 72 of the positioning mechanism 7, the support plate 73 can be quickly unfolded and put into contact with the ground. The balance block 72 balances the force on the support plate 73 through the lever principle, ensuring that the equipment does not shift during operation. The connecting rod 83 of the guide mechanism 8 slides along the second guide rod 82, providing a linear guide for the moving frame 64. This mechanism improves positioning accuracy and solves the problems of traditional equipment relying on manual fixing, slow positioning, and poor stability. Two sets of connecting rods 71, together with the balance block 72, can make the support plate 73 unfold smoothly and fit tightly against the ground under the drive of the moving frame 64. The balance block 72 balances the force on the support plate 73 through the lever principle, ensuring that the equipment will not be displaced due to vibration or external force during operation, which significantly enhances the positioning stability. Compared with the traditional manual fixing method, this mechanism can quickly achieve equipment positioning, greatly shorten the positioning time, and improve work efficiency. The second guide rod 82 fixed by the fixing plate 81 provides a stable sliding track for the connecting long rod 83. The connecting long rod 83 is connected to the moving frame 64 and can play a precise guiding role when the moving frame 64 moves, effectively preventing the moving frame 64 from shifting laterally, ensuring the linear motion accuracy of the driving mechanism 6 driving the positioning mechanism 7, and indirectly improving the overall positioning accuracy of the equipment.
[0027] Specifically, when using this easily movable gear oil pump: the operator unfolds the push handle 54 and adjusts the parallelogram-shaped double-shaft frame 51, connecting plate 52, and connecting block 53 of the pushing mechanism 5 to a suitable angle. At the same time, the casters 33 of the moving mechanism 3 contact the ground, and the airbag 31 provides cushioning, putting the equipment in a movable state (e.g., Figure 2 and Figure 3As shown), the operator pushes the push handle 54, and the force is transmitted to the slider 43 through the double-shaft bracket 51 and the connecting plate 52. The slider 43 slides along the slide groove 41, driving the base 1 and the entire equipment to move. During the movement, the universal wheel 33 can freely turn under the limit of the first guide rod 32 to adapt to the thrust in different directions. The first guide rod 32 ensures the stability of the movement trajectory. During the movement, the airbag 31 absorbs the vibration caused by ground bumps and protects the precision components inside the gear oil pump body 2 (such as...). Figure 2 and Figure 3 As shown), when the equipment reaches the designated position, the motor 63 of the drive mechanism 6 is started. The motor 63 drives the forward and reverse screws 62 to rotate. The forward and reverse screws 62 drive the two moving frames 64 to move synchronously in opposite directions. The moving frames 64 pull the balance block 72 through the connecting rod 71. The balance block 72 drives the support plate 73 to unfold downward and contact the ground. Using the lever principle, the friction is increased, and the equipment is fixed to the ground. At the same time, the connecting rod 83 of the guide mechanism 8 slides along the second guide rod 82 to ensure the linear movement of the moving frame 64 and improve the positioning accuracy (e.g., Figure 1 and Figure 4 As shown), when not in use, the user can first rotate the connecting lever 52 to keep it flush, and then push the connecting lever 52 into the base 1 using the push handle 54, causing the slider 43 to slide into the base 1, thereby allowing the connecting lever 52 to be stored in the inner wall of the base 1 (as shown). Figure 1 and Figure 3 (As shown).
[0028] All technical features in this embodiment can be freely combined according to actual needs.
[0029] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A portable gear oil pump, comprising a base (1), characterized in that, The base (1) is threaded with a gear oil pump body (2) at the top, a moving mechanism (3) is provided at the bottom of the base (1), and a limiting mechanism (4) is provided on the inner wall of the base (1). The moving mechanism (3) includes an airbag (31), a first guide rod (32), and a universal wheel (33). The airbag (31) is provided in four sets, and the four sets of airbags (31) are fixedly installed at the bottom of the base (1). The first guide rod (32) is slidably installed on the inner wall of the bottom of the base (1) near the airbag (31). The bottom of the first guide rod (32) is fixedly installed with the universal wheel (33), and the universal wheel (33) is located below the airbag (31). The limiting mechanism (4) includes a sliding groove (41), a limiting slot (42), a slider (43), and a limiting plate (44). The sliding groove (41) is opened on one side of the base (1). The limiting slot (42) is opened in the sliding groove (41) on the inner wall of the base (1). The slider (43) is slidably installed on the inner wall of the base (1) through the opening of the sliding groove (41) and the limiting slot (42). The limiting plate (44) is fixedly installed on one side of the base (1). The limiting plate (44) is movably connected to the slider (43).
2. The portable gear oil pump according to claim 1, characterized in that, A pushing mechanism (5) is provided on the side of the slider (43) away from the base (1), and a driving mechanism (6) is provided at the bottom of the base (1).
3. A portable gear oil pump according to claim 2, characterized in that, The bottom of the base (1) is provided with a positioning mechanism (7) and a guiding mechanism (8).
4. A portable gear oil pump according to claim 3, characterized in that, The pushing mechanism (5) includes a dual-shaft frame (51), a connecting plate (52), a connecting block (53), and a push handle (54). The dual-shaft frame (51) is fixedly installed on the side of the slider (43) away from the base (1). There are two sets of connecting plates (52). The two sets of connecting plates (52) are rotatably installed on the top and bottom of the inner wall of the dual-shaft frame (51), respectively. The side of the two sets of connecting plates (52) away from the dual-shaft frame (51) is rotatably installed with the connecting block (53). The dual-shaft frame (51), connecting plate (52), and connecting block (53) are parallelogram-shaped. The inner wall of the connecting block (53) is fixedly installed with the push handle (54).
5. A portable gear oil pump according to claim 4, characterized in that, The drive mechanism (6) includes a fixed plate (61), a forward and reverse screw (62), a motor (63), and a moving frame (64). The fixed plate (61) is fixedly installed in the middle of the bottom of the base (1). One side of the fixed plate (61) is fixedly installed with the motor (63). The inner wall of the fixed plate (61) is rotatably installed with the forward and reverse screw (62). The output end of the motor (63) is fixedly installed with the forward and reverse screw (62). The two ends of the surface of the forward and reverse screw (62) are threadedly installed with the moving frame (64).
6. A portable gear oil pump according to claim 5, characterized in that, The positioning mechanism (7) includes a connecting rod (71), a counterweight (72), and a support plate (73). There are two sets of connecting rods (71). The two sets of connecting rods (71) are rotatably installed on the inner wall of the bottom of the movable frame (64). The side of the connecting rod (71) away from the movable frame (64) is rotatably installed with respect to each other. The two sides of the connecting rod (71) away from the movable frame (64) are rotatably installed with the counterweight (72). The two sides of the counterweight (72) are fixedly installed with the support plate (73).
7. A portable gear oil pump according to claim 6, characterized in that, The guiding mechanism (8) includes a fixed plate (81), a second guide rod (82), and a connecting rod (83). The fixed plate (81) is fixedly installed on both sides of the bottom of the base (1). The inner wall of the fixed plate (81) is fixedly installed with the second guide rod (82). There are two sets of connecting rods (83). The two sets of connecting rods (83) are fixedly installed on both sides of the movable frame (64). The side of the connecting rod (83) away from the movable frame (64) is slidably installed on the surface of the second guide rod (82).