Piston type buffering hydraulic device

Abstract

The utility model discloses a piston type buffering hydraulic device which comprises a buffering supporting cylinder, a piston moving rod, a moving connecting plate, a pressed moving rod and a multidirectional transmission pipe used for buffering and supporting. The movable connecting plate is fixedly arranged at the end, located in the buffering supporting cylinder, of the piston moving rod, the pressed moving rod is arranged on one side of the multi-direction transmission pipe in a sliding mode, the movement positions of the buffering moving columns and the pressed moving rod are opposite, and the multiple buffering moving columns are fixedly connected with a movable supporting disc at the same time. The movable supporting disc is connected with the pressed movable rod in an inserted mode. According to the buffer device, under transmission supporting of hydraulic oil in the multidirectional transmission pipe, pressure borne by the pressed moving rod is converted into supporting force for the buffer moving column to move towards the moving connecting plate, and the effect of buffering movement of the moving connecting plate and the piston moving rod is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic devices, in particular to a piston-type buffer hydraulic device. Background Art

[0002] Hydraulic devices use the properties of liquid pressure transmission to measure the size of mass based on the principles of liquid level balance and pressure equality. They rely on the static pressure of the liquid medium to accumulate, transfer, and amplify energy, thereby making the mechanical functions lighter, more scientific, and more maximized.

[0003] When the hydraulic device is in use, the device components will be resisted by the reaction force. If not handled properly, the device structure will become loose under long-term vibration, thereby making the device connection unstable and affecting its stability in use. The existing buffering methods generally use buffer springs and telescopic rods to assist in buffering, and some also use piston-type buffer structures. However, these buffering methods are basically passive buffering, and the buffering force has certain limitations due to structural constraints. It is impossible to amplify the force of the device's own movement and then move it in the opposite direction for buffering, which affects the high efficiency of the device's buffering.

[0004] Therefore, we provide a piston-type buffer hydraulic device. Utility Model Content

[0005] The purpose of the utility model is to provide a piston-type buffer hydraulic device to achieve a high-efficiency buffering effect in view of the above-mentioned existing technical problems.

[0006] In view of this, the utility model provides a piston-type buffer hydraulic device, including a buffer support cylinder, a piston moving rod, a movable connecting plate, a compressed moving rod, and a multi-directional transmission tube for buffer support, the piston moving rod is slidably arranged inside the buffer support cylinder, the movable connecting plate is fixedly arranged at one end of the piston moving rod located inside the buffer support cylinder, the compressed moving rod is slidably arranged on one side of the multi-directional transmission tube, a plurality of buffer moving columns are arranged on the outside of the compressed moving rod, the buffer moving column and the movement position of the compressed moving rod are opposite, and the plurality of buffer moving columns are fixedly connected to a movable support plate at the same time, and the movable support plate is plugged into the compressed moving rod.

[0007] Preferably, the compressed moving rod extends to both sides of the movable support plate, and the compressed moving rod does not contact the movable support plate, the movable support plate is located between the movable connecting plate and the multi-directional transmission tube, and a plurality of limiting rings are provided on the side of the buffer support tube close to the movable support plate, and the limiting rings are used for limiting the movement of the compressed moving rod and the buffer moving column.

[0008] Preferably, a pressure guide cylinder is fixedly connected to the upper middle end of the multi-directional transmission tube, a pressure sealing gasket is slidably arranged inside the pressure guide cylinder, the pressure sealing gasket is tightly connected to the inner wall of the pressure guide cylinder, and the pressure sealing gasket is fixedly connected to the pressure moving rod.

[0009] Preferably, the buffer movable column is slidably connected to a buffer guide cylinder via an upward moving sealing gasket, and the upward moving sealing gasket is tightly connected to the inner wall of the buffer guide cylinder.

[0010] Preferably, the upward-moving sealing pad is fixedly arranged on the upper end of the multi-directional transmission tube, and the pressure guide cylinder is located between a plurality of the buffer guide cylinders.

[0011] Preferably, a plurality of sliding limit grooves are provided inside the buffer support tube, and auxiliary limit rods are inserted into the sliding limit grooves. The auxiliary limit rods are inserted into the movable support plate and extend out of one side thereof.

[0012] Preferably, the auxiliary limiting rod extends to the inside of the sliding limiting groove, one end of the auxiliary limiting rod is fixedly connected to the limiting moving block, the lower end of the limiting moving block is fixedly connected to a return spring, and the limiting moving block and the return spring are both located inside the sliding limiting groove.

[0013] Compared with the prior art, the utility model provides a piston-type buffer hydraulic device, which has the following beneficial effects:

[0014] 1. The utility model sets the initial planes of the hydraulic oil at the lower end of the compressed moving rod and the buffer moving column to be consistent, thereby increasing the pressure on the compressed moving rod and then releasing it to the moving connecting plate, thereby achieving the effect of offsetting the moving force of the moving connecting plate through the moving support plate, and achieving the effect of efficiently buffering the movement of the piston moving rod.

[0015] 2. The utility model does not require external drive during the buffering process, thereby improving the efficiency and energy saving of the device during buffering movement.

[0016] 3. In the utility model, when the pressure is offset by the buffer component and the reverse movement is performed, the reset spring can drive the auxiliary limit rod to move in the reverse direction at the same time under the rebound effect, and through the movement limitation of the limit moving block by the sliding limit groove and the limiting support of the movable support plate by the auxiliary limit rod, the contraction stability of the reset spring and the limitation of the distance of the movable support plate during the buffer movement are guaranteed.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic cross-sectional structure diagram of a piston-type buffer hydraulic device proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a movable support plate of a piston-type buffer hydraulic device proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a multi-directional transmission tube of a piston-type buffer hydraulic device proposed by the utility model;

[0021] Figure 4 The utility model discloses a schematic diagram of the structure of a buffer auxiliary component of a piston-type buffer hydraulic device.

[0022] In the figure: 1. Buffer support cylinder; 2. Piston moving rod; 3. Moving connecting plate; 4. Pressure moving rod; 5. Pressure sealing pad; 6. Pressure guide cylinder; 7. Multi-directional transmission tube; 8. Buffer guide cylinder; 9. Upward moving sealing pad; 10. Buffer moving column; 11. Moving support plate; 12. Auxiliary limiting rod; 13. Sliding limiting groove; 14. Limit moving block; 15. Reset spring; 16. Limit ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1: A piston-type buffer hydraulic device, such as Figure 1-Figure 4As shown, it includes a buffer support cylinder 1, a piston moving rod 2, a moving connecting plate 3, a compressed moving rod 4, and a multi-directional transmission tube 7 for buffer support. The piston moving rod 2 is slidably arranged inside the buffer support cylinder 1, the moving connecting plate 3 is fixedly arranged at one end of the piston moving rod 2 located inside the buffer support cylinder 1, and the compressed moving rod 4 is slidably arranged on one side of the multi-directional transmission tube 7. A plurality of buffer moving columns 10 are arranged on the outside of the compressed moving rod 4. The movement position of the buffer moving column 10 and the compressed moving rod 4 is opposite. The plurality of buffer moving columns 10 are fixedly connected with a moving support disk 11 at the same time. The moving support disk 11 is plugged into the compressed moving rod 4. When the device is running, the pressure on the compressed moving rod 4 is converted into a supporting force for the buffer moving column 10 to move toward the moving connecting plate 3 under the transmission support of the hydraulic oil inside the multi-directional transmission tube 7, thereby achieving the effect of buffering the movement of the moving connecting plate 3 and the piston moving rod 2. Specifically, when the piston moving rod 2 receives the external force and drives the moving connecting plate 3 inside the buffer support cylinder 1 to move toward the side of the multi-directional transmission tube 7, the moving connecting plate 3 contacts the compressed moving rod 4 and drives it to move toward the inside of the multi-directional transmission tube 7, so that the multiple buffer moving columns 10 on the other side are driven to move in the opposite direction under the flow transmission of the hydraulic oil, and then can drive the moving support plate 11 to move toward the moving connecting plate 3, and by setting the initial plane of the hydraulic oil at the lower end of the compressed moving rod 4 and the buffer moving column 10 to be consistent, the pressure on the compressed moving rod 4 is increased and then released to the moving connecting plate 3, so that the moving force of the moving connecting plate 3 is offset by the moving support plate 11, and the movement of the piston moving rod 2 can be efficiently buffered, and this buffering process does not require external drive, thereby improving the efficiency and energy saving of the device during buffering movement.

[0026] like Figure 1-Figure 4 As shown, the compressed moving rod 4 extends to both sides of the moving support plate 11, and the compressed moving rod 4 does not contact the moving support plate 11. The moving support plate 11 is located between the moving connecting plate 3 and the multi-directional transmission tube 7. A plurality of limiting rings 16 are arranged on the side of the buffer support tube 1 close to the moving support plate 11. The limiting rings 16 are used to limit the movement of the compressed moving rod 4 and the buffer moving column 10. The setting of the moving support plate 11 and the limiting rings 16 can ensure the stability of the buffering moving position of the device. For example, under the support of the buffer support tube 1, the limiting rings 16 can simultaneously limit the bottom ends of the compressed moving rod 4 and multiple buffer moving columns 10 to ensure their stability during normal movement, and also to ensure the reliability and accuracy of their moving distance and angle. In addition, by arranging the moving support plate 11 and the compressed moving rod 4 to be plugged in but not in contact, the two will not rub against each other when they move, thereby improving the stability and normality of the two when they move relative to each other.

[0027] like Figure 1-Figure 4As shown, the middle upper end of the multi-directional transmission tube 7 is fixedly connected with a pressure guide cylinder 6, a pressure seal 5 is slidably arranged inside the pressure guide cylinder 6, the pressure seal 5 is tightly connected to the inner wall of the pressure guide cylinder 6, the pressure seal 5 is fixedly connected to the pressure moving rod 4, the buffer moving column 10 is slidably connected to the buffer guide cylinder 8 through the upward seal 9, the upward seal 9 is tightly connected to the inner wall of the buffer guide cylinder 8, the upward seal 9 is fixedly arranged at the upper end of the multi-directional transmission tube 7, and the pressure guide cylinder 6 is located between a plurality of buffer guide cylinders 8, by 6's sliding support and guidance ensure the stability of force transmission and the accuracy of movement direction between the compressed moving rod 4 and the buffer moving column 10. Furthermore, by driving the compressed sealing pad 5 to press and move inside the pressure guide cylinder 6 under the compressed moving rod 4, the upward sealing pad 9 inside the multi-directional transmission tube 7 and the multi-side buffer guide cylinder 8 is moved accordingly by the lift force of the hydraulic oil, thereby driving multiple buffer moving columns 10 to move upward at the same time under the guidance of the buffer guide cylinder 8, thereby achieving the effect of increasing and releasing the pressure, and improving the stable power of the buffer support of the device.

[0028] Embodiment 2: A piston-type buffer hydraulic device, such as Figure 1-Figure 4 As shown, a plurality of sliding limit grooves 13 are provided inside the buffer support tube 1, and an auxiliary limit rod 12 is inserted into the sliding limit groove 13. The auxiliary limit rod 12 is inserted into the movable support plate 11 and extends out of one side thereof, and the auxiliary limit rod 12 extends into the sliding limit groove 13, and one end of the auxiliary limit rod 12 is fixedly connected to a limited moving block 14, and a return spring 15 is fixedly connected to the lower end of the limited moving block 14, and the limited moving block 14 and the return spring 15 are both located inside the sliding limit groove 13. By supporting and limiting and automatically resetting the auxiliary limit rod 12, the stable operation of the movable support plate 11 during buffering movement is improved. Furthermore, when the buffer device is moved downward under pressure, the auxiliary limit rod 12 is driven by the pressure. The support plate 11 is supported by the auxiliary limit rod 15 and the auxiliary limit rod 15 is supported by the auxiliary limit rod 15. When the support plate 11 is supported by the auxiliary limit rod 15, the ...

[0029] When the piston moving rod 2 receives the external force and drives the moving connecting plate 3 inside the buffer support cylinder 1 to move toward one side of the multi-directional transmission tube 7, the moving connecting plate 3 contacts the compressed moving rod 4 and drives it to move toward the inside of the multi-directional transmission tube 7, so that the multiple buffer moving columns 10 on the other side are driven to move in the opposite direction under the flow transmission of the hydraulic oil, and then can drive the moving support plate 11 to move toward the moving connecting plate 3, and by setting the initial planes of the hydraulic oil at the lower ends of the compressed moving rod 4 and the buffer moving column 10 to be consistent, the pressure on the compressed moving rod 4 is increased and then released to the moving connecting plate 3, so that the moving force of the moving connecting plate 3 is offset by the moving support plate 11, and the movement of the piston moving rod 2 can be efficiently buffered.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A piston-type buffer hydraulic device, comprising a buffer support cylinder (1), a piston moving rod (2), a moving connecting plate (3), a pressure-bearing moving rod (4), and a multi-directional transmission tube (7) for buffer support, characterized in that: The piston moving rod (2) is slidably arranged inside the buffer support tube (1), the moving connecting plate (3) is fixedly arranged at one end of the piston moving rod (2) located inside the buffer support tube (1), the pressure moving rod (4) is slidably arranged on one side of the multi-directional transmission tube (7), and a plurality of buffer moving columns (10) are arranged on the outside of the pressure moving rod (4), and the movement position of the buffer moving column (10) is opposite to that of the pressure moving rod (4), and a plurality of the buffer moving columns (10) are fixedly connected to a moving support plate (11) at the same time, and the moving support plate (11) is plugged into the pressure moving rod (4).

2. A piston-type buffer hydraulic device according to claim 1, characterized in that: The compressed movable rod (4) extends to both sides of the movable support plate (11), and the compressed movable rod (4) does not contact the movable support plate (11). The movable support plate (11) is located between the movable connecting plate (3) and the multi-directional transmission tube (7). A plurality of limiting rings (16) are provided on one side of the buffer support tube (1) close to the movable support plate (11). The limiting rings (16) are used for limiting the movement of the compressed movable rod (4) and the buffer movable column (10).

3. A piston-type buffer hydraulic device according to claim 1, characterized in that: The middle upper end of the multi-directional transmission tube (7) is fixedly connected to a pressure guide cylinder (6), a pressure sealing pad (5) is slidably arranged inside the pressure guide cylinder (6), the pressure sealing pad (5) is tightly connected to the inner wall of the pressure guide cylinder (6), and the pressure sealing pad (5) is fixedly connected to the pressure moving rod (4).

4. A piston-type buffer hydraulic device according to claim 3, characterized in that: The buffer movable column (10) is slidably connected to the buffer guide cylinder (8) via an upward moving sealing pad (9), and the upward moving sealing pad (9) is tightly connected to the inner wall of the buffer guide cylinder (8).

5. A piston-type buffer hydraulic device according to claim 4, characterized in that: The upward seal pad (9) is fixedly arranged on the upper end of the multi-directional transmission tube (7), and the pressure guide cylinder (6) is located between a plurality of the buffer guide cylinders (8).

6. A piston-type buffer hydraulic device according to claim 1, characterized in that: The buffer support tube (1) is provided with a plurality of sliding limit grooves (13) inside, the sliding limit grooves (13) are plugged with auxiliary limit rods (12), and the auxiliary limit rods (12) are plugged with the movable support plate (11) and extend out of one side thereof.

7. A piston-type buffer hydraulic device according to claim 6, characterized in that: The auxiliary limiting rod (12) extends to the inside of the sliding limiting groove (13); one end of the auxiliary limiting rod (12) is fixedly connected to a limiting moving block (14); a lower end of the limiting moving block (14) is fixedly connected to a return spring (15); the limiting moving block (14) and the return spring (15) are both located inside the sliding limiting groove (13).

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