Hydraulic pump assembly
By designing the movable rod and blocking structure in the hydraulic pump assembly, the problem of liquid flowing out during hydraulic pipe removal is solved, and the leakage prevention effect of liquid is achieved during smooth discharge and disassembly is improved, and the practicality and flexibility of the assembly are improved.
Patent Information
- Application Number
- CN202421797456.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
When existing hydraulic pump assembly removes the hydraulic tube from the hydraulic pump, sudden pressure release or residual pressure in the pipe can cause residual liquid to flow out.
A hydraulic pump assembly is designed, including hydraulic head, hydraulic nozzle, connecting pipe and blocking block. Through the cooperation of the movable rod and the blocking block, the liquid is discharged smoothly through the groove when discharged; during disassembly, the blocking block is reblocked by rotating the movable ring and gear structure to prevent liquid from flowing out.
It effectively avoids the flow of liquid during disassembly, and improves the practicality and flexibility of hydraulic pump components.
Smart Images
Figure CN223004210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic pump assemblies, and specifically relates to a hydraulic pump assembly. Background Art
[0002] A hydraulic pump is a power element of a hydraulic system. It is driven by an engine or an electric motor and is a device that converts mechanical energy into hydraulic energy. A hydraulic pump sucks oil from a hydraulic oil tank, forms pressurized oil and discharges it, and sends it to an actuator (such as a hydraulic cylinder, a hydraulic motor, etc.). It converts the mechanical energy of a power machine (such as an electric motor, an internal combustion engine, etc.) into the pressure energy of a liquid and provides pressurized liquid for a hydraulic transmission system.
[0003] As a key power element in a hydraulic system, the component composition of a hydraulic pump is crucial for the normal operation of the hydraulic system. Generally speaking, the main components of a hydraulic pump include: a pump body, an impeller, a bearing, a sealing device, and other auxiliary components; and the other auxiliary components generally include a hydraulic pipe, which connects the hydraulic pump and the hydraulic system to enable the liquid to flow, a control mechanism, which is used to adjust parameters such as the flow rate and pressure of the pump to meet different working requirements; a spring, a suction valve, and a discharge valve, which are used to control the suction and discharge processes of the liquid and ensure the normal operation of the pump.
[0004] When the hydraulic pipe in the prior art is connected to the hydraulic pump, it is generally connected by a threaded connection or a flange connection. Although the threaded connection and the flange connection methods can simply and directly maintain their sealing performance and stable effect, when the hydraulic pipe is removed from the hydraulic pump, the sudden pressure release or the residual pressure in the pipeline will cause the residual liquid to flow out. Summary of the Utility Model
[0005] Based on this, the purpose of the present utility model is to provide a hydraulic pump assembly to solve the technical problem that when the hydraulic pipe is removed from the hydraulic pump, the sudden pressure release or the residual pressure in the pipeline will cause the residual liquid to flow out.
[0006] To achieve the above object, the present utility model provides the following technical solutions: A hydraulic pump assembly includes a hydraulic head, one side of the hydraulic head is fixedly connected with a hydraulic nozzle, the other side of the hydraulic head is snap-connected with a connecting pipe, the connecting pipe is located at the oil outlet of the hydraulic pump, a plurality of second connecting rods are fixedly installed inside the connecting pipe, a connecting plate is fixedly connected inside the second connecting rods, a spring is fixedly connected to one side of the connecting plate, a blocking block is fixedly connected to the end of the spring, a slot for cooperating with the oil outlet of the hydraulic pump is opened on one side of the connecting pipe, a first movable ring is rotatably connected to the outside of the hydraulic head, a limiting rod is fixedly connected inside the hydraulic nozzle, a movable rod is movably connected to the outside of the limiting rod, one end of the movable rod is in contact with the blocking block, an external thread is provided on the outside of the movable rod, a second movable ring is threadedly connected to the outside of the movable rod, a plurality of first connecting rods are fixedly installed on the outside of the second movable ring, a first toothed ring is fixedly connected to one end of the first connecting rod, and a transmission structure for cooperating with the first toothed ring and the first movable ring is provided on the outside of the hydraulic head.
[0007] By adopting the above technical solutions, during use, the connecting pipe is connected to the oil outlet of the hydraulic pump, and then the hydraulic head is spliced with the connecting pipe. When the hydraulic head is sleeved outside the connecting pipe, the movable rod continuously moves into the connecting pipe. By continuously squeezing the blocking block through the movable rod, the blocking block is moved away from the slot. When the blocking block no longer blocks the slot, the liquid can smoothly drain from the hydraulic head and the hydraulic nozzle through the slot. Secondly, when the hydraulic head needs to be disassembled, by rotating the first movable ring, the mutual cooperation between the first toothed ring and the transmission structure drives the second movable ring to move inside the hydraulic head. Through the threaded structure between the movable rod and the second movable ring, it is beneficial for the movable rod to move out smoothly. At this time, when the blocking block is no longer under the pressure of the movable rod, due to the characteristics of the spring itself and the oil pressure, the blocking block can return to one side of the slot again, blocking the liquid outlet of the connecting pipe. Then the hydraulic head can be removed. By blocking the slot with the blocking block, the residual liquid in the connecting pipe can be prevented from flowing out, improving the practicability and flexibility of the entire hydraulic pump assembly.
[0008] The present utility model is further provided that the transmission structure includes a plurality of gears, a second toothed ring, and a first convex ring. The first convex ring is fixed to the outside of the hydraulic head. A plurality of the gears are rotatably connected to the first convex ring through a rotating shaft. The second toothed ring is fixed to the inside of the first movable ring. The gears are meshed with the second toothed ring. The gears are located outside the first toothed ring. The gears are meshed with the first toothed ring.
[0009] By adopting the above technical solutions, when rotating the first movable ring, through the meshing state of the gears, the first toothed ring, and the second toothed ring provided, the second movable ring can rotate inside the hydraulic head, thereby achieving the effect of adjusting the position of the movable rod.
[0010] The present utility model is further configured such that a rubber ring is provided at the connection between the inner side of the hydraulic head and the connecting pipe, and the hydraulic head fits well with the connecting pipe.
[0011] By adopting the above technical solution, the provided rubber ring is beneficial to enhancing the friction effect between the hydraulic head and the connecting pipe, enabling the hydraulic head to be tightly connected to the connecting pipe for use.
[0012] The present utility model is further configured such that second convex rings are fixedly installed on both sides of the first toothed ring, the second convex rings are located in the inner wall of the hydraulic head, and second sliding grooves for cooperating with the second convex rings are formed in the hydraulic head.
[0013] By adopting the above technical solution, the mutual cooperation between the provided second convex rings and the second sliding grooves enables the first toothed ring to flexibly rotate in the hydraulic head in cooperation with the transmission structure, and can also achieve a certain sealing effect to prevent oil leakage from the hydraulic head when the hydraulic pump is working.
[0014] The present utility model is further configured such that a limiting ring is fixedly connected to one side of the bottom of the first movable ring, and a first sliding groove for cooperating with the limiting ring is formed on the outer side of the hydraulic head.
[0015] By adopting the above technical solution, the mutual cooperation between the provided limiting ring and the first sliding groove is beneficial to enabling the first movable ring to flexibly rotate on the outer side of the hydraulic head.
[0016] The present utility model is further configured such that internal threads for cooperating with the movable rod are formed on the inner side of the second movable ring.
[0017] By adopting the above technical solution, the provided internal threads are convenient for enabling the second movable ring to flexibly drive the movable rod to move within the second movable ring when rotating in the hydraulic head.
[0018] The present utility model is further configured such that the limiting rod is fixed inside the hydraulic nozzle through a connecting rod, and an activity groove for cooperating with the limiting rod is formed in the movable rod.
[0019] By adopting the above technical solution, the provided connecting rod is beneficial to fixing the limiting rod inside the hydraulic head, playing a role in limiting the movable rod, so that the movable rod will not rotate along with the second movable ring outside the limiting rod and can only move back and forth. Through the activity groove in the movable rod, it is beneficial to enabling the movable rod to move smoothly inside the hydraulic head.
[0020] In summary, the present utility model mainly has the following beneficial effects:
[0021] 1. The utility model connects the connecting pipe to the oil outlet of the hydraulic pump, and then splices the hydraulic head to the connecting pipe. When the hydraulic head is sleeved outside the connecting pipe, the movable rod continuously moves into the connecting pipe. By continuously squeezing the blocking block with the movable rod, the blocking block is moved away from the slot. When the blocking block no longer blocks the slot, the liquid can smoothly discharge from the hydraulic head and the hydraulic nozzle through the slot. Secondly, when the hydraulic head needs to be disassembled, by rotating the first movable ring, the first toothed ring and the transmission structure cooperate with each other to drive the second movable ring to move inside the hydraulic head. Through the threaded structure between the movable rod and the second movable ring, it is beneficial for the movable rod to move out smoothly. At this time, when the blocking block is no longer under the pressure of the movable rod, due to the characteristics of the spring itself and the oil pressure, the blocking block can return to one side of the slot, blocking the liquid outlet of the connecting pipe. Then the hydraulic head can be removed. By blocking the slot with the blocking block, the residual liquid in the connecting pipe can be prevented from flowing out, improving the practicability and flexibility of the entire hydraulic pump assembly;
[0022] 2. The connecting rod provided by the utility model is beneficial for fixing the limiting rod inside the hydraulic head, playing a role in limiting the movable rod, so that the movable rod will not rotate along with the second movable ring outside the limiting rod and can only move back and forth. Through the movable slot in the movable rod, it is beneficial for the movable rod to move smoothly inside the hydraulic head. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is the overall structural schematic diagram of the utility model;
[0024] Figure 2 is the first - perspective schematic diagram of the disassembled structure of the utility model;
[0025] Figure 3 is the second - perspective schematic diagram of the disassembled structure of the utility model;
[0026] Figure 4 is the first - perspective schematic diagram of the internal structure of the utility model;
[0027] Figure 5 is the second - perspective schematic diagram of the internal structure of the utility model;
[0028] Figure 6 is the first - perspective schematic diagram of the sectional structure of the utility model;
[0029] Figure 7 is the second - perspective schematic diagram of the sectional structure of the utility model.
[0030] In the figure: 1, hydraulic head; 2, hydraulic nozzle; 3, connecting pipe; 4, first convex ring; 5, first movable ring; 6, slotted opening; 7, movable rod; 8, limiting rod; 9, first toothed ring; 10, first connecting rod; 11, second movable ring; 12, gear; 13, plug block; 14, spring; 15, connecting plate; 16, second connecting rod; 17, limiting ring; 18, movable groove; 19, connecting rod; 20, second convex ring; 21, second toothed ring; 22, first chute; 23, second chute. Specific implementation manner
[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.
[0032] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.
[0033] A hydraulic pump assembly, as Figure 1-7 shown, includes a hydraulic head 1. A hydraulic nozzle 2 is fixedly connected to one side of the hydraulic head 1. A connecting pipe 3 is snap-connected to the other side of the hydraulic head 1. The connecting pipe 3 is located at the oil outlet of the hydraulic pump. A plurality of groups of second connecting rods 16 are fixedly installed inside the connecting pipe 3. A connecting plate 15 is fixedly connected to the inside of the second connecting rods 16. A spring 14 is fixedly connected to one side of the connecting plate 15. A plug block 13 is fixedly connected to the end of the spring 14. A slotted opening 6 for cooperating with the oil outlet of the hydraulic pump is provided on one side of the connecting pipe 3. A first movable ring 5 is rotatably connected to the outside of the hydraulic head 1. A limiting rod 8 is fixedly connected inside the hydraulic nozzle 2. A movable rod 7 is movably connected to the outside of the limiting rod 8. One end of the movable rod 7 is in contact with the plug block 13. External threads are provided on the outside of the movable rod 7. A second movable ring 11 is threadedly connected to the outside of the movable rod 7. A plurality of groups of first connecting rods 10 are fixedly installed on the outside of the second movable ring 11. A first toothed ring 9 is fixedly connected to one end of the first connecting rods 10. A transmission structure for cooperating with the first toothed ring 9 and the first movable ring 5 is provided on the outside of the hydraulic head 1.
[0034] During use, connect the connecting pipe 3 to the oil outlet of the hydraulic pump, and then splice the hydraulic head 1 to the connecting pipe 3. When the hydraulic head 1 is sleeved outside the connecting pipe 3, the movable rod 7 continuously moves into the connecting pipe 3. By continuously squeezing the blocking block 13 through the movable rod 7, the blocking block 13 is moved away from the opening groove 6. When the blocking block 13 no longer blocks the opening groove 6, the liquid can smoothly drain from the hydraulic head 1 and the hydraulic nozzle 2 through the opening groove 6. Secondly, when the hydraulic head 1 needs to be disassembled, by rotating the first movable ring 5, the mutual cooperation between the first tooth ring 9 and the transmission structure drives the second movable ring 11 to move inside the hydraulic head 1. Due to the threaded structure between the movable rod 7 and the second movable ring 11, it is beneficial for the movable rod 7 to move out smoothly. At this time, when the blocking block 13 is no longer under the pressure of the movable rod 7, due to the characteristics of the spring 14 itself and the oil pressure, the blocking block 13 can return to one side of the opening groove 6, blocking the liquid outlet of the connecting pipe 3. Then the hydraulic head 1 can be removed. By blocking the opening groove 6 with the blocking block 13, the residual liquid in the connecting pipe 3 can be prevented from flowing out, improving the practicability and flexibility of the entire hydraulic pump assembly.
[0035] The further transmission structure includes multiple groups of gears 12, a second tooth ring 21, and a first convex ring 4. The first convex ring 4 is fixed to the outside of the hydraulic head 1. Multiple groups of gears 12 are rotatably connected to the first convex ring 4 through a rotating shaft. The second tooth ring 21 is fixed to the inside of the first movable ring 5. The gears 12 are meshed with the second tooth ring 21. The gears 12 are located outside the first tooth ring 9 and are meshed with the first tooth ring 9. When the first movable ring 5 is rotated, due to the meshing state of the gears 12, the first tooth ring 9, and the second tooth ring 21, the second movable ring 11 can rotate inside the hydraulic head 1, thereby achieving the effect of adjusting the position of the movable rod 7. The rubber ring provided is beneficial for strengthening the friction effect between the hydraulic head 1 and the connecting pipe 3, enabling the hydraulic head 1 to be tightly connected to the connecting pipe 3 for use.
[0036] In this embodiment, the mutual cooperation between the second convex ring 20 and the second chute 23 enables the first tooth ring 9 to flexibly rotate inside the hydraulic head 1 in cooperation with the transmission structure, and can also achieve a certain sealing effect to prevent oil leakage from the hydraulic head 1 when the hydraulic pump is working. Moreover, the mutual cooperation between the limiting ring 17 and the first chute 22 is beneficial for the first movable ring 5 to flexibly rotate outside the hydraulic head 1. The internal thread is provided so that when the second movable ring 11 rotates inside the hydraulic head 1, it can flexibly drive the movable rod 7 to move inside the second movable ring 11. Finally, the connecting rod 19 is beneficial for fixing the limiting rod 8 inside the hydraulic head 1, playing a role in limiting the movable rod 7, so that the movable rod 7 cannot rotate outside the limiting rod 8 following the second movable ring 11 and can only move back and forth. Through the movable groove 18 inside the movable rod 7, it is beneficial for the movable rod 7 to move smoothly inside the hydraulic head 1.
[0037] Although embodiments of the present utility model have been shown and described, the specific embodiments are merely explanations of the present utility model and are not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.
Claims
1. A hydraulic pump assembly, comprising a hydraulic head (1), characterized in that: One side of the hydraulic head (1) is fixedly connected to a hydraulic nozzle (2), and the other side of the hydraulic head (1) is snap-connected to a connecting pipe (3), the connecting pipe (3) is located at the oil outlet of the hydraulic pump, a plurality of groups of second connecting rods (16) are fixedly installed on the inner side of the connecting pipe (3), the inner side of the second connecting rod (16) is fixedly connected to a connecting plate (15), one side of the connecting plate (15) is fixedly connected to a spring (14), the end of the spring (14) is fixedly connected to a blocking block (13), one side of the connecting pipe (3) is provided with a slot (6) for use with the oil outlet of the hydraulic pump, and the outer side of the hydraulic head (1) is rotatably connected to a first movable A ring (5) is provided, a limit rod (8) is fixedly connected inside the hydraulic nozzle (2), a movable rod (7) is movably connected to the outer side of the limit rod (8), one end of the movable rod (7) is in contact with the block (13), an external thread is provided on the outer side of the movable rod (7), a second movable ring (11) is threadedly connected to the outer side of the movable rod (7), a plurality of first connecting rods (10) are fixedly installed on the outer side of the second movable ring (11), one end of the first connecting rod (10) is fixedly connected to the first gear ring (9), and a transmission structure for cooperating with the first gear ring (9) and the first movable ring (5) is provided on the outer side of the hydraulic head (1).
2. The hydraulic pump assembly according to claim 1, characterized in that: The transmission structure comprises a plurality of groups of gears (12), a second gear ring (21), and a first convex ring (4); the first convex ring (4) is fixed to the outside of the hydraulic head (1); the plurality of groups of gears (12) are rotatably connected to the first convex ring (4) via a rotating shaft; the second gear ring (21) is fixed to the inside of the first movable ring (5); the gear (12) is meshed with the second gear ring (21); the gear (12) is located on the outside of the first gear ring (9); and the gear (12) is meshed with the first gear ring (9).
3. The hydraulic pump assembly according to claim 1, characterized in that: A rubber ring is provided at the connection between the inner side of the hydraulic head (1) and the connecting pipe (3), and the hydraulic head (1) and the connecting pipe (3) are fitted together.
4. The hydraulic pump assembly according to claim 1, characterized in that: Second convex rings (20) are fixedly mounted on both sides of the first gear ring (9); the second convex ring (20) is located in the inner wall of the hydraulic head (1); and a second slide groove (23) for cooperating with the second convex ring (20) is provided in the hydraulic head (1).
5. The hydraulic pump assembly according to claim 1, characterized in that: One side of the bottom of the first movable ring (5) is fixedly connected to a limiting ring (17), and a first sliding groove (22) for use with the limiting ring (17) is provided on the outer side of the hydraulic head (1).
6. The hydraulic pump assembly according to claim 1, characterized in that: An internal thread for cooperating with the movable rod (7) is formed on the inner side of the second movable ring (11).
7. The hydraulic pump assembly according to claim 1, characterized in that: The limiting rod (8) is fixed inside the hydraulic nozzle (2) via a connecting rod (19), and a movable groove (18) for use with the limiting rod (8) is provided inside the movable rod (7).