Buffering device of hydraulic hoist

Abstract

The utility model discloses a buffer device of a hydraulic hoist, and belongs to the technical field of hydraulic hoists, the buffer device of the hydraulic hoist comprises a metal shell, a buffer mechanism is arranged in the metal shell, a piston block is pushed by a piston rod to slide in the metal shell, and the piston block pushes a magnetic attraction block to approach a buffer block. A buffer block and a magnetic attraction block arranged in a piston block are arranged in a repulsive mode, so that the buffer block is stressed to move, the buffer block pushes a moving rod to slide outside a fixed rod, a spring arranged in the moving rod is compressed in the moving process of the buffer block, the phenomenon that the spring is rusted is avoided, the buffer block pushes two sets of sliding rods to slide outside 40, and the service life of the sliding rods is prolonged. And the movement stability of the buffer block can be improved, so that the buffer effect on the piston rod is achieved, the piston rod can be stably buffered, the rusting condition caused by long-time use is avoided, and the buffer stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic gate hoists, and in particular to a buffer device for a hydraulic gate hoist. Background Art

[0002] The hydraulic gate hoist is generally composed of a hydraulic system and a hydraulic cylinder. Under the control of the hydraulic system, the inner wall of the piston in the hydraulic cylinder makes axial reciprocating motion, thereby driving the connecting rod and gate connected to the piston to make linear motion to achieve the purpose of opening and closing the orifice.

[0003] The Chinese utility model patent with the publication number CN214698604U discloses a buffering and rust-proofing device for a long-stroke hydraulic gate hoist, comprising a cylinder body, a piston disposed inside the cylinder body, a first magnetic block disposed on one side of the outer surface of the piston, a first magnetic ring disposed on the outer surface of the piston away from the outer surface of the first magnetic block, a piston rod fixedly connected to the end of the outer surface of the piston near the first magnetic ring, and the piston rod is located inside the first magnetic ring, a first rubber sleeve is sleeved on the outer surface of the piston rod, a first compression spring is fixedly connected to the inner side of the first rubber sleeve, and a second magnetic ring is fixedly connected to the outer surface of the first rubber sleeve near the piston. In the utility model, the compression spring is installed inside the rubber sleeve, which can not only prevent the compression spring from corrosion and rusting, but also ensure the overall buffering performance. At the same time, the magnetic ring and magnetic block are provided to further improve the overall buffering performance. However, the above scheme has the following disadvantages: the buffering operation is performed by the spring and magnet, but the movement during the buffering process does not have a limit function. Wear after long-term use can cause shaking during the buffering process, resulting in poor buffering effect, inconvenient installation and disassembly, and inconvenient use.

[0004] Therefore, the present application provides a buffer device for a hydraulic hoist to solve the above problems. Utility Model Content

[0005] The present application provides a buffer device for a hydraulic gate opening and closing machine, which aims to solve the problems proposed in the background technology of the existing buffering operation by setting springs and magnets, but it has no limiting function during movement during the buffering process, wear and tear after long-term use will cause shaking during the buffering process, the buffering effect is poor, and it is inconvenient to install and disassemble, and inconvenient to use.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solution: a buffer device for a hydraulic gate hoist, comprising a metal shell, a piston rod disposed inside the metal shell, a guide sleeve disposed inside one end of the metal shell, a sealing sleeve fixedly connected to the outside of one end of the metal shell, one end of the piston rod extending to the outside of the sealing sleeve and fixedly connected to a connecting piece, and a buffer mechanism disposed inside the metal shell;

[0007] Preferably, in order to solve the problem that the existing buffering operation is performed by setting a spring and a magnet, but it has no limiting function when moving during the buffering process, wear and tear after long-term use will cause shaking during the buffering process, poor buffering effect, inconvenient installation and disassembly, and inconvenient use, the buffer mechanism includes a mounting block arranged inside the metal shell, a fixed rod is fixedly connected to the outside of the side of the mounting block, a moving rod is arranged on the outside of the fixed rod, a buffer block is fixedly connected to one side of the moving rod, a spring is fixedly connected between one end of the fixed rod arranged inside the moving rod and the side of the buffer block, the piston rod is fixedly connected to the piston block at one end arranged inside the metal shell, and the grooves on the side of the buffer block close to the piston block are both provided A magnetic block is provided, and the piston rod pushes the piston block to slide inside the metal shell, so that the piston block drives the limit blocks set on both sides to slide inside the limit groove, thereby improving the stability of the piston block movement, and the piston block pushes the magnetic block to approach the buffer block. The buffer block and the magnetic block set inside the piston block are set to repel each other, so that the buffer block moves under force, and the buffer block pushes the moving rod to slide outside the fixed rod. During the movement of the buffer block, the spring set inside the moving rod is compressed to avoid rust on the spring. The buffer block pushes the two sets of sliding rods to slide on the outside of 40, which can improve the stability of the buffer block movement, thereby achieving a buffering effect on the piston rod, and can stably buffer the piston rod to avoid rust after long-term use, thereby improving the stability of buffering.

[0008] Preferably, in order to solve the problem of convenient movement of the buffer block and the piston block, the fixed rod is slidably connected to the movable rod, the buffer block is adapted to the inner diameter of the metal shell, and the buffer block is slidably connected to the metal shell, the piston block is adapted to the inner diameter of the metal shell, and the piston block is slidably connected to the metal shell, the buffer block and the piston block are adapted to the inner diameter of the metal shell, which can facilitate the movement of the piston block and the buffer block, and the fixed rod is slidably connected to the movable rod, thereby having a buffering effect on the equipment and being convenient to use.

[0009] Preferably, in order to solve the problem of the stability of the movement of the piston block, the two sides of the piston block are fixedly connected with limiting blocks, and the inner sides of the metal shell are provided with limiting grooves adapted to the limiting blocks. The limiting blocks are arranged inside the limiting grooves, and the limiting blocks are slidably connected to the limiting grooves. The piston block drives the limiting grooves arranged on both sides to slide inside the limiting grooves opened on both sides of the metal shell, which can improve the stability of the movement of the piston block and is easy to use.

[0010] Preferably, in order to solve the problem of the stability of the movement of the buffer block, the two ends of the mounting block on one side close to the buffer block are fixedly connected to the limiting rod, and the two ends of the buffer block on one side close to the mounting block are fixedly connected to the sliding rod, one end of the limiting rod is arranged inside the sliding rod, and the limiting rod is slidably connected to the sliding rod, and the buffer block pushes the sliding rod to slide outside the limiting rod. The sliding rod and the limiting rod are slidably connected, which can improve the stability of the movement of the buffer block, thereby ensuring the stability of the buffer, avoiding shaking, and being easy to use.

[0011] Preferably, in order to solve the problem of convenient installation and disassembly of the mounting block, mounting plug-in blocks are fixedly connected on both sides of the mounting block, and an installation groove compatible with the mounting plug-in block is opened inside one end of the metal shell near the mounting block, and the mounting plug-in block is plugged into the mounting groove. By plugging the mounting plug-in blocks set on both sides of the mounting block into the mounting groove opened at one end of the metal shell, the mounting block can be conveniently and quickly installed inside the metal shell, thereby facilitating installation and disassembly, and the operation is simple and fast, and easy to use.

[0012] Preferably, in order to solve the problem of sealing the metal shell and improving the stability of the mounting block, a sealing cover is fixedly connected to the outside of one end of the metal shell, and a support block is provided inside the sealing cover. The support block is adapted to the inner diameter of the metal shell, and the two ends of the support block are plugged into the mounting groove. The sealing cover is plugged into the outside of the metal shell, so that the mounting plug-in block can be clamped into the inside of the metal shell to seal the inside of the metal shell, and the mounting block is supported by the support block to avoid the phenomenon of shaking of the mounting block and improve the stability of the buffer. The sealing cover is fixed to the metal shell by bolts, which is convenient for installation and disassembly and easy to use.

[0013] The buffer mechanism pushes the piston block to slide inside the metal shell through the piston rod, so that the piston block drives the limit blocks set on both sides to slide inside the limit groove, thereby improving the stability of the piston block movement, and the piston block pushes the magnetic block to approach the buffer block. The buffer block and the magnetic block set inside the piston block are set to repel each other, so that the buffer block moves under force, and the buffer block pushes the moving rod to slide outside the fixed rod. During the movement of the buffer block, the spring set inside the moving rod is compressed to avoid rust on the spring. The buffer block pushes the two groups of sliding rods to slide outside 40, which can improve the stability of the buffer block movement, thereby achieving a buffering effect on the piston rod, and can stably buffer the piston rod to avoid rust after long-term use, thereby improving the stability of buffering. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of a buffer device of a hydraulic hoist;

[0015] Figure 2 It is a schematic diagram of the three-dimensional and cross-sectional structure of a buffer device of a hydraulic hoist;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of a buffer mechanism of a buffer device of a hydraulic hoist;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of a buffer device of a hydraulic hoist;

[0019] Figure 6 This is a three-dimensional schematic diagram of the structure of a buffer device of a hydraulic hoist.

[0020] In the picture:

[0021] 1. Metal shell; 2. Piston rod; 3. Guide sleeve; 4. Sealing sleeve; 5. Connector; 6. Buffer mechanism; 61. Mounting block; 62. Fixed rod; 63. Moving rod; 64. Buffer block; 65. Spring; 66. Piston block; 67. Magnetic block; 68. Limit block; 69. Limit slot; 70. Limit rod; 71. Sliding rod; 72. Mounting plug-in block; 73. Mounting slot; 74. Sealing cover; 75. Support block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] Example 1

[0024] This embodiment provides a buffer device for a hydraulic hoist, such as Figure 1-6 As shown, the buffer device of the hydraulic hoist includes a metal shell 1, a piston rod 2 is provided inside the metal shell 1, a guide sleeve 3 is provided inside one end of the metal shell 1, a sealing sleeve 4 is fixedly connected to the outside of one end of the metal shell 1, one end of the piston rod 2 extends to the outside of the sealing sleeve 4 and is fixedly connected to a connecting piece 5, and a buffer mechanism 6 is provided inside the metal shell 1;

[0025] During use, the buffer mechanism 6 is provided to stably buffer the piston rod 2, thereby avoiding rust caused by long-term use, improving the stability of the buffer, and facilitating installation and disassembly, simple and quick operation, and easy use.

[0026] Specifically, the buffer mechanism 6 includes a mounting block 61 disposed inside the metal housing 1, a fixed rod 62 is fixedly connected to the outside of the side of the mounting block 61, a moving rod 63 is disposed outside the fixed rod 62, a buffer block 64 is fixedly connected to one side of the moving rod 63, a spring 65 is fixedly connected between one end of the fixed rod 62 disposed inside the moving rod 63 and the side of the buffer block 64, one end of the piston rod 2 disposed inside the metal housing 1 is fixedly connected to a piston block 66, and a magnetic block 67 is provided inside the groove on one side of the buffer block 64 close to the piston block 66;

[0027] During use, the piston rod 2 pushes the piston block 66 to slide inside the metal shell 1, so that the piston block 66 drives the limit blocks 68 set on both sides to slide inside the limit groove 69, thereby improving the stability of the movement of the piston block 66, and the piston block 66 pushes the magnetic block 67 to approach the buffer block 64. The buffer block 64 and the magnetic block 67 set inside the piston block 66 are set to repel each other, so that the buffer block 64 is forced to move, and the buffer block 64 pushes the moving rod 63 to slide on the outside of the fixed rod 62. During the movement of the buffer block 64, the spring 65 set inside the moving rod 63 is compressed, thereby preventing the spring 65 from rusting. The buffer block 64 pushes the two groups of sliding rods 71 to slide on the outside of 40, which can improve the stability of the movement of the buffer block 64, thereby achieving a buffering effect on the piston rod 2, and can stably buffer the piston rod 2 to avoid rusting after long-term use, thereby improving the stability of the buffering.

[0028] Furthermore, the fixed rod 62 is slidably connected to the movable rod 63, the buffer block 64 is adapted to the inner diameter of the metal shell 1, and the buffer block 64 is slidably connected to the metal shell 1, the piston block 66 is adapted to the inner diameter of the metal shell 1, and the piston block 66 is slidably connected to the metal shell 1, the buffer block 64 and the piston block 66 are adapted to the inner diameter of the metal shell 1, which can facilitate the movement of the piston block 66 and the buffer block 64, and the fixed rod 62 is slidably connected to the movable rod 63, thereby having a buffering effect on the equipment and being convenient to use.

[0029] Furthermore, the two sides of the piston block 66 are fixedly connected to the limiting blocks 68, and the inner sides of the metal shell 1 are provided with limiting grooves 69 adapted to the limiting blocks 68. The limiting blocks 68 are arranged inside the limiting grooves 69, and the limiting blocks 68 are slidably connected to the limiting grooves 69. The piston block 66 drives the limiting grooves 69 set on both sides to slide inside the limiting grooves 69 opened on both sides of the metal shell 1, which can improve the stability of the movement of the piston block 66 and is easy to use.

[0030] Among them, both ends of the side of the mounting block 61 close to the buffer block 64 are fixedly connected to the limiting rod 70, and both ends of the side of the buffer block 64 close to the mounting block 61 are fixedly connected to the sliding rod 71. One end of the limiting rod 70 is arranged inside the sliding rod 71, and the limiting rod 70 is slidably connected to the sliding rod 71. The buffer block 64 pushes the sliding rod 71 to slide outside the limiting rod 70. The sliding rod 71 is slidably connected to the limiting rod 70, which can improve the stability of the movement of the buffer block 64, thereby ensuring the stability of the buffering, avoiding shaking, and being easy to use.

[0031] Specifically, mounting plug-in blocks 72 are fixedly connected to both sides of the mounting block 61, and a mounting groove 73 compatible with the mounting plug-in block 72 is opened inside one end of the metal shell 1 near the mounting block 61. The mounting plug-in block 72 is plugged into the mounting groove 73. By plugging the mounting plug-in blocks 72 set on both sides of the mounting block 61 into the mounting groove 73 opened at one end of the metal shell 1, the mounting block 61 can be easily and quickly installed inside the metal shell 1, thereby facilitating installation and disassembly, and the operation is simple and fast, and easy to use.

[0032] Furthermore, a sealing cover 74 is fixedly connected to the outside of one end of the metal shell 1, and a support block 75 is provided inside the sealing cover 74. The support block 75 is adapted to the inner diameter of the metal shell 1, and the two ends of the support block 75 are plugged into the mounting groove 73. By plugging the sealing cover 74 into the outside of the metal shell 1, the mounting plug-in block 72 can be clamped into the inside of the metal shell 1 to seal the inside of the metal shell 1, and the mounting block 61 is supported by the support block 75 to avoid the shaking of the mounting block 61 and improve the stability of the buffer. The sealing cover 74 is fixed to the metal shell 1 by bolts, which is convenient for installation and disassembly and easy to use.

[0033] The above are only preferred specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solutions and concepts of the present application within the technical scope disclosed in the present application, and they should be covered by the protection scope of the present application.

Claims

1. A buffer device for a hydraulic gate hoist, comprising a metal shell (1), a piston rod (2) disposed inside the metal shell (1), a guide sleeve (3) disposed inside one end of the metal shell (1), a sealing sleeve (4) fixedly connected to the outside of one end of the metal shell (1), and a connecting piece (5) extending from one end of the piston rod (2) to the outside of the sealing sleeve (4) and fixedly connected thereto, characterized in that: A buffer mechanism (6) is provided inside the metal shell (1); The buffer mechanism (6) comprises a mounting block (61) arranged inside the metal shell (1); a fixed rod (62) is fixedly connected to the outside of the side of the mounting block (61); a moving rod (63) is arranged outside the fixed rod (62); a buffer block (64) is fixedly connected to one side of the moving rod (63); a spring (65) is fixedly connected between one end of the fixed rod (62) arranged inside the moving rod (63) and the side of the buffer block (64); one end of the piston rod (2) arranged inside the metal shell (1) is fixedly connected to the piston block (66); and a magnetic block (67) is provided inside the groove on one side of the buffer block (64) close to the piston block (66).

2. The buffer device of the hydraulic hoist according to claim 1, characterized in that: The fixed rod (62) is slidably connected to the movable rod (63); the buffer block (64) is adapted to the inner diameter of the metal shell (1), and the buffer block (64) is slidably connected to the metal shell (1); the piston block (66) is adapted to the inner diameter of the metal shell (1), and the piston block (66) is slidably connected to the metal shell (1).

3. The buffer device of the hydraulic hoist according to claim 2, characterized in that: The two sides of the piston block (66) are fixedly connected to the limiting blocks (68), and the inner sides of the metal shell (1) are provided with limiting grooves (69) adapted to the limiting blocks (68). The limiting blocks (68) are arranged inside the limiting grooves (69), and the limiting blocks (68) are slidably connected to the limiting grooves (69).

4. The buffer device of the hydraulic hoist according to claim 1, characterized in that: Both ends of the side of the mounting block (61) close to the buffer block (64) are fixedly connected to a limiting rod (70), and both ends of the side of the buffer block (64) close to the mounting block (61) are fixedly connected to a sliding rod (71). One end of the limiting rod (70) is arranged inside the sliding rod (71), and the limiting rod (70) is slidably connected to the sliding rod (71).

5. The buffer device of the hydraulic hoist according to claim 1, characterized in that: Mounting plug-in blocks (72) are fixedly connected to both sides of the mounting block (61); a mounting groove (73) adapted to the mounting plug-in block (72) is provided at one end of the metal shell (1) near the interior of the mounting block (61); and the mounting plug-in block (72) is plugged into the mounting groove (73).

6. The buffer device of the hydraulic hoist according to claim 1, characterized in that: A sealing cover (74) is fixedly connected to the outside of one end of the metal shell (1), and a support block (75) is provided inside the sealing cover (74). The support block (75) is adapted to the inner diameter of the metal shell (1), and both ends of the support block (75) are plugged into the mounting groove (73).

Images