Buffering hydraulic cylinder

Abstract

The utility model provides a buffering hydraulic cylinder, which relates to the technical field of hydraulic cylinders and comprises a cylinder body barrel and an auxiliary device, a piston is slidably connected in the cylinder body barrel, the cylinder body barrel is fixedly connected with an output rod by the aid of the piston, two oil pipe ports are fixedly connected to the arc surface of the cylinder body barrel, and the two oil pipe ports are connected with the auxiliary device. The cylinder body barrel is provided with a fixing device by means of an auxiliary device, the fixing device comprises a mounting plate, the mounting plate is mounted on the arc surface of the cylinder body barrel by means of the auxiliary device, the upper surface of the mounting plate is fixedly connected with two symmetrical fixing plates by means of a support, and the surfaces of the two fixing plates are rotatably connected with the same screw rod; according to the hydraulic cylinder, the effect of fixing the oil pipe connected with the oil pipe opening is achieved through the fixing device, the situation that the oil pipe and the oil pipe opening fall off under the action of the gravity of oil in the oil pipe and the gravity of the oil pipe is avoided, and the practicability of the hydraulic cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a buffer hydraulic cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] Prior art includes a utility model with publication number CN117189709B, which discloses a buffer hydraulic cylinder. The patent achieves buffering of the rapid rebound of the hydraulic rod, avoiding the hydraulic rod from hitting the bottom of the hydraulic cylinder, and changes the traditional method of reducing the flow rate of the hydraulic oil by plugging a fixed rod into a small hole, thereby extending the service life of the buffer device.

[0004] The inventor discovered in his daily work that the connection between the oil pipe and the hydraulic cylinder is relatively fragile. During long-term use, under the action of the gravity of the oil inside the oil pipe and the gravity of the oil pipe itself, the oil pipe may fall off the hydraulic cylinder, causing the hydraulic cylinder to be unable to be used normally. Utility Model Content

[0005] The utility model provides a buffer hydraulic cylinder to solve the shortcomings in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a buffer hydraulic cylinder, including a cylinder barrel and an auxiliary device, the cylinder barrel is slidably connected to the inside of the cylinder barrel, the cylinder barrel is fixedly connected to the output rod by means of the piston, the arc surface of the cylinder barrel is fixedly connected to two oil pipe openings, the cylinder barrel is provided with a fixing device with the aid of the auxiliary device, the fixing device includes a mounting plate, the mounting plate is mounted on the arc surface of the cylinder barrel with the aid of the auxiliary device, the upper surface of the mounting plate is fixedly connected to two mutually symmetrical fixing plates with the aid of a bracket, the surfaces of the two fixing plates are rotatably connected to the same screw, the arc surface of the screw is provided with two mutually symmetrical reverse threads, the arc surface of the screw is threadedly connected to two mutually symmetrical moving plates, the moving plate is fixedly connected to a splint corresponding to the oil pipe opening, and the cross-section of the splint is arc-shaped.

[0007] The effect achieved by the above components is: after the oil pipe is connected to the oil pipe port, the screw is rotated, the screw brings the two movable plates closer to each other, and the movable plate brings the clamping plate to squeeze the oil pipe, thereby achieving the effect of fixing the oil pipe. The oil pipe connected to the oil pipe port is fixed through the fixing device, thereby preventing the oil pipe and the oil pipe port from falling off due to the gravity of the oil inside the oil pipe and the gravity of the oil pipe itself, thereby improving the practicability of the hydraulic cylinder.

[0008] Preferably, a plurality of rubber pads are fixedly connected to the interior of the clamping plate, and the plurality of rubber pads are linearly distributed.

[0009] The effect achieved by the above components is: the oil pipe is protected by arranging the rubber pad, so as to prevent the oil pipe from being damaged by the clamping plate.

[0010] Preferably, a plurality of rubber pads are fixedly connected to the interior of the clamping plate, and the plurality of rubber pads are linearly distributed.

[0011] The effect achieved by the above components is: the oil pipe is protected by arranging the rubber pad, so as to prevent the oil pipe from being damaged by the clamping plate.

[0012] Preferably, one end of the screw is fixedly connected to a handle, and the surface of the handle is provided with anti-slip patterns.

[0013] The effect achieved by the above components is: by providing the handle, it is convenient for the staff to move the screw, which brings convenience to the staff.

[0014] Preferably, the auxiliary device is arranged on the arc surface of the cylinder barrel, and the auxiliary device includes a base, which is fixedly connected to the arc surface of the cylinder barrel, the inner wall size of the base is adapted to the size of the mounting plate, a pad is fixedly connected to one side of the base, a coil spring is fixedly connected to the upper surface of the pad, and a clamping plate is fixedly connected to one end of the coil spring.

[0015] The effect achieved by the above components is: when the mounting plate needs to be fixed, first rotate the clamping plate, and the coil spring on the pad is deformed. At this time, the mounting plate is inserted into the inner wall of the base, and then the clamping plate is released. Under the action of the return elastic force of the coil spring, the clamping plate automatically clamps the mounting plate, thereby achieving the effect of fixing the mounting plate. Through the auxiliary device, it is convenient for the staff to install and disassemble the mounting plate, which brings convenience to the staff.

[0016] Preferably, a rotating rod is rotatably connected to the upper surface of the pad, one end of the rotating rod is fixedly connected to the clamping plate, and the rotating rod is located inside the coil spring.

[0017] The effect achieved by the above components is: by setting the rotating rod, the effect of limiting the direction of the elastic force of the coil spring is achieved, thereby preventing the coil spring from bending.

[0018] Preferably, a pull plate is fixedly connected to the upper surface of the clamping plate, and the surface of the pull plate is provided with anti-slip grooves.

[0019] The effect achieved by the above components is: by setting the pull plate, the contact area between the staff's hands and the pallet is increased, thereby making it easier for the staff to rotate the pallet, bringing convenience to the staff.

[0020] Preferably, two mutually symmetrical positioning rods are fixedly connected to the inner wall of the base, and positioning holes are formed on the mounting plate corresponding to the positioning rods, and the size of the positioning holes matches the size of the positioning rods.

[0021] The effect achieved by the above components is: by inserting the positioning rod into the positioning hole of the mounting plate, the mounting plate is fixed to prevent the mounting plate from shaking in the base.

[0022] In summary, the beneficial effects of the utility model are:

[0023] After the oil pipe is connected to the oil pipe port, the screw is rotated, and the screw drives the two movable plates to approach each other, and the movable plates drive the clamping plates to squeeze the oil pipe, thereby achieving the effect of fixing the oil pipe. The oil pipe connected to the oil pipe port is fixed by the fixing device, thereby preventing the oil pipe and the oil pipe port from falling off due to the gravity of the oil inside the oil pipe and the gravity of the oil pipe itself, thereby improving the practicability of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the fixing device of the utility model;

[0026] Figure 3 For this utility model Figure 2 Schematic diagram of the bottom three-dimensional structure;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the auxiliary device of the utility model.

[0028] Legend: 1. Cylinder barrel; 2. Output rod; 3. Oil pipe port; 4. Fixing device; 41. Mounting plate; 42. Fixing plate; 43. Screw; 44. Moving plate; 45. Clamp; 46. Handle; 47. Telescopic rod; 48. Rubber pad; 5. Auxiliary device; 51. Base; 52. Pad; 53. Coil spring; 54. Clamp; 55. Rotating rod; 56. Positioning rod; 57. Positioning hole; 58. Pull plate. DETAILED DESCRIPTION

[0029] Reference Figure 1-4 As shown, this embodiment discloses a buffer hydraulic cylinder, including a cylinder barrel 1 and an auxiliary device 5, a piston is slidably connected inside the cylinder barrel 1, an output rod 2 is fixedly connected to the cylinder barrel 1 by means of the piston, two oil pipe openings 3 are fixedly connected to the circular arc surface of the cylinder barrel 1, a fixing device 4 is provided on the cylinder barrel 1 by means of the auxiliary device 5, and the auxiliary device 5 is arranged on the circular arc surface of the cylinder barrel 1.

[0030] Reference Figure 1-4 As shown, the fixing device 4 includes a mounting plate 41, which is mounted on the arc surface of the cylinder barrel 1 with the aid of an auxiliary device 5. The upper surface of the mounting plate 41 is fixedly connected to two mutually symmetrical fixing plates 42 with the aid of a bracket. The surfaces of the two fixing plates 42 are rotatably connected to the same screw 43. The arc surface of the screw 43 is provided with two mutually symmetrical reverse threads. The arc surface of the screw 43 is threadedly connected to two mutually symmetrical moving plates 44. The moving plates 44 are fixedly connected to the corresponding oil pipe ports 3 with a clamping plate 45, and the cross section of the clamping plate 45 is in an arc shape. After the oil pipe is connected to the oil pipe port 3, the screw 43 is rotated, and the screw 43 brings the two moving plates 44 closer to each other. The moving plates 44 squeeze the oil pipe with the clamping plate 45, achieving the effect of fixing the oil pipe. The fixing device 4 achieves the effect of fixing the oil pipe connected to the oil pipe port 3, avoiding the oil pipe and the oil pipe port 3 from falling off under the gravity of the oil inside the oil pipe and the gravity of the oil pipe itself, thereby improving the practicality of the hydraulic cylinder.

[0031] Reference Figure 1-4 As shown, a plurality of rubber pads 48 are fixedly connected to the inside of the splint 45, and the plurality of rubber pads 48 are linearly distributed. By providing the rubber pads 48, the oil pipe is protected to prevent the splint 45 from damaging the oil pipe. A telescopic rod 47 is fixedly connected to one side of the splint 45, and one end of the telescopic rod 47 is fixedly connected to the fixed plate 42. By providing the telescopic rod 47, the moving direction of the splint 45 is restricted, the rotation of the splint 45 and the movable plate 44 is prevented, and the stability of the movement of the splint 45 is improved. A handle 46 is fixedly connected to one end of the screw 43, and the surface of the handle 46 is provided with anti-slip grooves. By providing the handle 46, the effect of facilitating the staff to move the screw 43 is achieved, which brings convenience to the staff.

[0032] Reference Figure 1-4As shown, the auxiliary device 5 includes a base 51, which is fixedly connected to the arc surface of the cylinder barrel 1, the inner wall size of the base 51 is adapted to the size of the mounting plate 41, a pad 52 is fixedly connected to one side of the base 51, a coil spring 53 is fixedly connected to the upper surface of the pad 52, and a clamping plate 54 is fixedly connected to one end of the coil spring 53. When the mounting plate 41 needs to be fixed, the clamping plate 54 is first rotated, and the coil spring 53 on the pad 52 is deformed. At this time, the mounting plate 41 is inserted into the inner wall of the base 51, and then the clamping plate 54 is released. Under the action of the resetting elastic force of the coil spring 53, the clamping plate 54 automatically clamps the mounting plate 41, thereby achieving the effect of fixing the mounting plate 41. The auxiliary device 5 is used to facilitate the installation and removal of the mounting plate 41 by the staff, bringing convenience to the staff.

[0033] Reference Figure 1-4 As shown, the upper surface of the pad 52 is rotatably connected with a rotating rod 55, one end of which is fixedly connected to the card plate 54, and the rotating rod 55 is located inside the coil spring 53. By setting the rotating rod 55, the effect of limiting the elastic force direction of the coil spring 53 is achieved to prevent the coil spring 53 from bending. A pull plate 58 is fixedly connected to the upper surface of the card plate 54, and the surface of the pull plate 58 is provided with anti-slip grooves. By setting the pull plate 58, the contact area between the staff's hand and the card plate 54 is increased, so that it is convenient for the staff to rotate the card plate 54, which brings convenience to the staff. Two mutually symmetrical positioning rods 56 are fixedly connected to the inner wall of the base 51, and a positioning hole 57 is opened at the mounting plate 41 corresponding to the positioning rod 56, and the size of the positioning hole 57 is adapted to the size of the positioning rod 56. By inserting the positioning rod 56 into the positioning hole 57 of the mounting plate 41, the effect of fixing the mounting plate 41 is achieved to prevent the mounting plate 41 from shaking in the base 51.

[0034] Working principle: when it is necessary to fix the mounting plate 41, first move the pull plate 58, and the pull plate 58 rotates with the clamping plate 54 and the rotating rod 55, and the coil spring 53 on the pad 52 is deformed. At this time, the mounting plate 41 is inserted into the inner wall of the base 51, and the positioning rod 56 is inserted into the positioning hole 57 of the mounting plate 41, so as to achieve the effect of fixing the mounting plate 41. Then, release the pull plate 58, and under the action of the restoring elastic force of the coil spring 53, the clamping plate 54 automatically clamps the mounting plate 41, so as to achieve the effect of fixing the mounting plate 41. Through the auxiliary device 5, it is convenient for the staff to install and disassemble the mounting plate 41, which brings convenience to the staff.

[0035] After the oil pipe is connected to the oil pipe port 3, the handle 46 is turned, and the handle 46 rotates with the screw 43, and the screw 43 brings the two movable plates 44 closer to each other, and the movable plate 44 brings the clamping plate 45 to squeeze the oil pipe with the help of the rubber pad 48, thereby achieving the effect of fixing the oil pipe. The oil pipe connected to the oil pipe port 3 is fixed by the fixing device 4, which prevents the oil pipe and the oil pipe port 3 from falling off due to the gravity of the oil inside the oil pipe and the gravity of the oil pipe itself, thereby improving the practicability of the hydraulic cylinder.

Claims

1. A buffer hydraulic cylinder, comprising a cylinder barrel (1) and an auxiliary device (5), characterized in that: The cylinder barrel (1) is slidably connected to a piston inside, and the cylinder barrel (1) is fixedly connected to an output rod (2) by means of the piston. The circular arc surface of the cylinder barrel (1) is fixedly connected to two oil pipe ports (3). The cylinder barrel (1) is provided with a fixing device (4) by means of an auxiliary device (5). The fixing device (4) comprises a mounting plate (41). The mounting plate (41) is mounted on the circular arc surface of the cylinder barrel (1) by means of the auxiliary device (5). The upper surface of the mounting plate (41) is fixedly connected to two mutually symmetrical fixing plates (42) by means of a bracket. The surfaces of the two fixing plates (42) are rotatably connected to the same screw rod (43). The circular arc surface of the screw rod (43) is provided with two mutually symmetrical reverse threads. The circular arc surface of the screw rod (43) is threadedly connected to two mutually symmetrical moving plates (44). The moving plate (44) is fixedly connected to a clamping plate (45) corresponding to the oil pipe port (3). The cross section of the clamping plate (45) is in the shape of a circular arc.

2. A buffer hydraulic cylinder according to claim 1, characterized in that: A plurality of rubber pads (48) are fixedly connected to the interior of the clamping plate (45), and the plurality of rubber pads (48) are distributed linearly.

3. The buffer hydraulic cylinder according to claim 1, characterized in that: A telescopic rod (47) is fixedly connected to one side of the clamping plate (45), and one end of the telescopic rod (47) is fixedly connected to the fixing plate (42).

4. The buffer hydraulic cylinder according to claim 1, characterized in that: One end of the screw rod (43) is fixedly connected to a handle (46), and a surface of the handle (46) is provided with anti-slip grooves.

5. The buffer hydraulic cylinder according to claim 1, characterized in that: The auxiliary device (5) is arranged on the arc surface of the cylinder barrel (1), and comprises a base (51). The base (51) is fixedly connected to the arc surface of the cylinder barrel (1), the inner wall size of the base (51) is matched with the size of the mounting plate (41), a backing plate (52) is fixedly connected to one side of the base (51), a coil spring (53) is fixedly connected to the upper surface of the backing plate (52), and one end of the coil spring (53) is fixedly connected to a clamping plate (54).

6. A buffer hydraulic cylinder according to claim 5, characterized in that: The upper surface of the pad (52) is rotatably connected to a rotating rod (55), one end of the rotating rod (55) is fixedly connected to the clamping plate (54), and the rotating rod (55) is located inside the coil spring (53).

7. The buffer hydraulic cylinder according to claim 5, characterized in that: A pull plate (58) is fixedly connected to the upper surface of the clamping plate (54), and the surface of the pull plate (58) is provided with anti-slip grooves.

8. The buffer hydraulic cylinder according to claim 5, characterized in that: Two mutually symmetrical positioning rods (56) are fixedly connected to the inner wall of the base (51), and positioning holes (57) are formed on the mounting plate (41) at locations corresponding to the positioning rods (56), wherein the size of the positioning holes (57) matches the size of the positioning rods (56).

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