Hydraulic damper with adjustable damping force value

Abstract

The utility model discloses a hydraulic damper with an adjustable damping force value, and relates to the technical field of dampers. The hydraulic damper with the adjustable damping force value comprises a base, the upper surface of the base is rotationally connected with a rotating pipe through a bearing, a round pipe is arranged in the rotating pipe in a sleeved mode, a buffering rod is inserted into the top of the round pipe, and the top of the buffering rod is rotationally connected with a rotating disc through a bearing. Then, when the resistance value of the buffer rod needs to be adjusted, a rotating pipe is rotated, so that a communicating hole in the rotating pipe is correspondingly communicated with a communicating hole in a communicating pipe, a limiting pipe is conveniently communicated with different cavities in a circular pipe, and after the buffer rod is subjected to pressure subsequently, the moving pressure of a piston block in the circular pipe is different, so that in the using process, the piston block is prevented from moving in the circular pipe; and the resistance value of the damper can be adjusted, so that subsequent use is facilitated, the use efficiency of the damper is improved, and subsequent operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to a hydraulic damper with adjustable damping force value. Background Art

[0002] A hydraulic damper is a hydraulic feed speed control device that can freely adjust the cylinder feed speed from low speed to high speed within the desired range. There are two types of control methods: spring return type (RB type) and air return type (RA type), which can be selected according to the purpose. There is a patent for a hydraulic damper with adjustable damping force value, patent publication number CN218510066U, which includes: an oil storage cylinder, a hydraulic cylinder, a piston and a piston rod. The hydraulic cylinder is connected to the oil storage cylinder through an oil leakage adjustment device, the piston is slidably connected to the inside of the hydraulic cylinder and the side of the piston is tightly fitted with the inner wall of the hydraulic cylinder, the piston rod is fixedly connected to the piston, and the inner wall of the oil storage cylinder is provided with a seal, and the piston rod passes through the seal and is slidably connected to the seal. A hydraulic damper with adjustable damping force value solves the problem that the damping force of the existing damper is a fixed damping force and the damping force cannot be adjusted.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: in actual application, they cannot be assembled and adjusted, and it is inconvenient to use them in subsequent use, which reduces the efficiency of the use of the damper and reduces the convenience of using the damper. Therefore, we propose a hydraulic damper with adjustable damping force value to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a hydraulic damper with adjustable damping force value, which solves the problem that it is inconvenient to assemble and adjust the hydraulic damper, thus affecting subsequent normal use.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hydraulic damper with adjustable damping force value, comprising a base, the upper surface of the base is rotatably connected to a rotating tube through a bearing, a round tube is sleeved inside the rotating tube, a buffer rod is inserted into the top of the round tube, the top of the buffer rod is rotatably connected to a turntable through a bearing, a mounting frame is fixedly installed on the upper surface of the turntable, a buffer spring is arranged around the surface of the buffer rod, the top of the buffer spring is fixedly connected to the bottom of the turntable, and the bottom of the buffer spring is fixedly connected to the upper surface of the round tube.

[0006] A connecting tube is fixedly installed on the inner bottom wall of the circular tube, the circular tube is sleeved on the surface of the connecting tube, a limiting tube is fixedly installed inside the circular tube, the connecting tube and the circular tube are fixedly connected by a partition, the top of the limiting tube passes through the bottom of the circular tube and extends to the inside of the connecting tube, connecting holes are provided on the limiting tube and the connecting tube, a baffle is fixedly installed on the bottom of the buffer rod, a piston block is fixedly installed on the bottom of the baffle, and the piston block is located inside the connecting tube.

[0007] Preferably, the number of the mounting frames is two, and the two mounting frames are connected by an inserted screw rod, a nut is threadedly connected to the surface of the screw rod, and one side of the nut is in contact with one side of one of the mounting frames.

[0008] Preferably, the screw rod is provided with a socket, a limit pin is inserted into the socket, the surface of the limit pin is slidably connected to the inner wall of the socket, and the bottom of the limit pin is curved.

[0009] Preferably, the surface of the piston block is in contact with the inner wall of the connecting tube, and the piston block is adapted to the connecting tube, and the bottom of the piston block is in contact with the top of the limiting tube.

[0010] Preferably, a sealing ring is fixedly mounted on the inner wall of the rotating tube, a limiting groove is provided on the inner wall of the sealing ring, and the sealing ring is made of rubber.

[0011] Preferably, the bottom of the limiting tube is fixedly connected to the inner bottom wall of the rotating tube, a sealing sleeve is sleeved on the surface of the limiting tube, and the bottom of the sealing sleeve is fixedly connected to the inner bottom wall of the limiting tube.

[0012] Preferably, the inner bottom wall of the rotating tube is inlaid with balls, the bottom of the round tube is rollingly connected to the surface of the balls, and a tube hole for the round tube to pass through is opened on the rotating tube. Beneficial Effects

[0013] The utility model provides a hydraulic damper with adjustable damping force value. Compared with the prior art, it has the following beneficial effects:

[0014] The hydraulic damper with adjustable damping force value is installed at the position where it is needed. Then when its resistance value needs to be adjusted, the rotating tube is rotated so that the connecting holes on the rotating tube are connected with the corresponding connecting holes on the connecting tube, so as to facilitate the connection of the limit tube with different cavities in the circular tube. After the buffer rod is subsequently subjected to pressure, the moving pressure of the piston block inside the circular tube is different. Therefore, during use, the resistance value of the damper can be adjusted, which is convenient for subsequent use, improves the use efficiency of the damper, and facilitates subsequent operations.

[0015] The provided mounting frame, during use, achieves the effect of facilitating connection and limiting with the mounting components, preventing the damper from shaking during subsequent use. At the same time, when it is necessary to rotate and connect it, the limiting pin is pulled out, and then the limiting pin cancels the limit on the nut, and then the nut is loosened to prevent the component from being placed between the two mounting frames, and then the screw is inserted, and the limiting pin is inserted after the nut is tightened, so as to facilitate the subsequent limiting operation, facilitate subsequent normal use, and improve the convenience of using the damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the circular tube of the utility model.

[0018] Figure 3 The utility model is a schematic diagram of the three-dimensional connection structure between the replacement rod and the piston block.

[0019] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the rotating tube of the utility model.

[0020] Figure 5 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0021] In the figure: 1. base; 2. rotating tube; 3. round tube; 4. buffer rod; 5. turntable; 6. mounting frame; 7. buffer spring; 8. connecting pipe; 9. limit pipe; 10. partition; 11. baffle plate; 12. piston block; 13. screw rod; 14. nut; 15. limit pin; 16. sealing ring; 17. sealing sleeve; 18. ball bearing. DETAILED DESCRIPTION

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

[0023] See also Figure 1-5The utility model provides a technical solution: a hydraulic damper with adjustable damping force value, comprising a base 1, the upper surface of the base 1 is rotatably connected with a rotating tube 2 through a bearing, a round tube 3 is sleeved inside the rotating tube 2, a buffer rod 4 is inserted into the top of the round tube 3, a turntable 5 is rotatably connected to the top of the buffer rod 4 through a bearing, a mounting frame 6 is fixedly installed on the upper surface of the turntable 5, a buffer spring 7 is arranged around the surface of the buffer rod 4, the top of the buffer spring 7 is fixedly connected to the bottom of the turntable 5, and the bottom of the buffer spring 7 is fixedly connected to the upper surface of the round tube 3.

[0024] A connecting tube 8 is fixedly installed on the inner bottom wall of the circular tube 3, and the circular tube 3 is sleeved on the surface of the connecting tube 8. A limiting tube 9 is fixedly installed inside the circular tube 3. The connecting tube 8 and the circular tube 3 are fixedly connected by a partition 10. The top of the limiting tube 9 passes through the bottom of the circular tube 3 and extends to the inside of the connecting tube 8. Connecting holes are provided on the limiting tube 9 and the connecting tube 8. A baffle 11 is fixedly installed on the bottom of the buffer rod 4, and a piston block 12 is fixedly installed on the bottom of the baffle 11. The piston block 12 is located inside the connecting tube 8.

[0025] Install the damper at the position where it is needed. Then when it is necessary to adjust its resistance value, rotate the rotating tube 2 so that the connecting holes on the rotating tube 2 are connected to the corresponding connecting holes on the connecting tube 8, so as to facilitate the connection of the limiting tube 9 with different cavities in the circular tube 3. After the buffer rod 4 is subsequently subjected to pressure, the moving pressure of the piston block 12 inside the circular tube 3 is different. Therefore, during use, the resistance value of the damper can be adjusted, which is convenient for subsequent use, improves the use efficiency of the damper, and facilitates subsequent operations.

[0026] See also Figure 1 , Figure 5 There are two mounting frames 6 , and the two mounting frames 6 are connected by an inserted screw 13 , a nut 14 is threadedly connected to the surface of the screw 13 , and one side of the nut 14 contacts one side of one of the mounting frames 6 .

[0027] The installation frame 6 is provided, during use, to achieve the effect of facilitating its installation and positioning. At the same time, the setting of the screw rod 13 and the nut 14 achieves the effect of facilitating its limiting, thereby facilitating subsequent installation operations and improving the ease of use of the damper.

[0028] See also Figure 1 , Figure 5 The screw rod 13 is provided with a socket, and a limit pin 15 is inserted into the socket. The surface of the limit pin 15 is slidably connected to the inner wall of the socket, and the bottom of the limit pin 15 is curved.

[0029] The setting of the limiting latch 15 achieves the effect of facilitating the limiting of the nut 14, thereby preventing the nut 14 from loosening during subsequent use, avoiding the falling off of components, and improving the safety of the damper.

[0030] See also Figure 2-Figure 3 The surface of the piston block 12 is in contact with the inner wall of the connecting tube 8 , and the piston block 12 is adapted to the connecting tube 8 , and the bottom of the piston block 12 is in contact with the top of the limiting tube 9 .

[0031] The arrangement of the piston block 12 achieves the effect of increasing the sealing performance at the position limiting tube 9, thereby avoiding the failure of the buffering performance during subsequent use and improving the use efficiency of the component.

[0032] See also Figure 4 A sealing ring 16 is fixedly installed on the inner wall of the rotating tube 2. A limiting groove is provided on the inner wall of the sealing ring 16. The sealing ring 16 is made of rubber.

[0033] The provided sealing ring 16 can facilitate squeezing of the rotating tube 2 during use, thereby preventing the rotating tube 2 from being unable to rotate during subsequent use, thereby improving the use efficiency of the damper.

[0034] The provided mounting frame 6, during use, achieves the effect of facilitating connection and limiting with the mounting components, preventing the damper from shaking during subsequent use. At the same time, when it is necessary to rotate and connect it, the limiting pin 15 is pulled out, and then the limiting pin 15 cancels the limit on the nut 14, and then the nut 14 is loosened to prevent the component from being between the two mounting frames 6, and then the screw rod 13 is inserted, and the limiting pin 15 is inserted after tightening the nut 14, so as to facilitate the subsequent limiting operation, facilitate the subsequent normal use, and improve the convenience of use of the damper.

[0035] See also Figure 4 The bottom of the limiting tube 9 is fixedly connected to the inner bottom wall of the rotating tube 2 , and a sealing sleeve 17 is sleeved on the surface of the limiting tube 9 , and the bottom of the sealing sleeve 17 is fixedly connected to the inner bottom wall of the limiting tube 9 .

[0036] The provided sealing sleeve 17 can increase the sealing performance of the bottom of the circular tube 3 during use, thereby facilitating subsequent normal use.

[0037] See also Figure 1 , Figure 4 The inner bottom wall of the rotating tube 2 is inlaid with a ball 18, the bottom of the round tube 3 is rollingly connected to the surface of the ball 18, and a tube hole for the round tube 3 to pass through is opened on the rotating tube 2.

[0038] The provision of the ball 18 facilitates the subsequent rotation of the rotating tube 2, thereby facilitating the support of the circular tube 3, thereby facilitating the subsequent operation of the staff.

[0039] During operation, the damper is installed at the position where it is needed. Then, when it is necessary to adjust its resistance value, rotate the rotating tube 2 so that the connecting hole on the rotating tube 2 is connected to the corresponding connecting hole on the connecting tube 8, so as to facilitate the connection of the limiting tube 9 with different cavities in the circular tube 3. After the buffer rod 4 is subsequently subjected to pressure, the moving pressure of the piston block 12 inside the circular tube 3 is different. Therefore, during use, the resistance value of the damper can be adjusted, which is convenient for subsequent use, improves the use efficiency of the damper, and facilitates subsequent operations. When it is necessary to rotate and connect it, pull out the limiting pin 15, and then the limiting pin 15 cancels the limit on the nut 14, and then loosens the nut 14 to prevent the component from being between the two mounting frames 6, and then inserts the screw 13. After tightening the nut 14, insert the limiting pin 15, so as to facilitate the subsequent limiting operation, facilitate subsequent normal use, and improve the convenience of using the damper.

[0040] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A hydraulic damper with adjustable damping force, comprising a base (1), characterized in that: The upper surface of the base (1) is rotatably connected to a rotating tube (2) via a bearing, a circular tube (3) is sleeved inside the rotating tube (2), a buffer rod (4) is inserted into the top of the circular tube (3), a rotating disk (5) is rotatably connected to the top of the buffer rod (4) via a bearing, a mounting frame (6) is fixedly mounted on the upper surface of the rotating disk (5), a buffer spring (7) is arranged around the surface of the buffer rod (4), the top of the buffer spring (7) is fixedly connected to the bottom of the rotating disk (5), and the bottom of the buffer spring (7) is fixedly connected to the upper surface of the circular tube (3); A connecting tube (8) is fixedly mounted on the inner bottom wall of the circular tube (3), the circular tube (3) is sleeved on the surface of the connecting tube (8), a limiting tube (9) is fixedly mounted inside the circular tube (3), the connecting tube (8) and the circular tube (3) are fixedly connected via a partition (10), the top of the limiting tube (9) passes through the bottom of the circular tube (3) and extends to the inside of the connecting tube (8), and connecting holes are provided on the limiting tube (9) and the connecting tube (8), a baffle (11) is fixedly mounted on the bottom of the buffer rod (4), a piston block (12) is fixedly mounted on the bottom of the baffle (11), and the piston block (12) is located inside the connecting tube (8).

2. A hydraulic damper with adjustable damping force value according to claim 1, characterized in that: The number of the mounting frames (6) is two, and the two mounting frames (6) are connected by an inserted screw rod (13), a nut (14) is threadedly connected to the surface of the screw rod (13), and one side of the nut (14) contacts one side of one of the mounting frames (6).

3. A hydraulic damper with adjustable damping force value according to claim 2, characterized in that: The screw rod (13) is provided with an insertion hole, a limit pin (15) is inserted into the interior of the insertion hole, the surface of the limit pin (15) is slidably connected to the inner wall of the insertion hole, and the bottom of the limit pin (15) is curved.

4. The hydraulic damper with adjustable damping force value according to claim 1, characterized in that: The surface of the piston block (12) is in contact with the inner wall of the connecting tube (8), and the piston block (12) is adapted to the connecting tube (8), and the bottom of the piston block (12) is in contact with the top of the limiting tube (9).

5. The hydraulic damper with adjustable damping force value according to claim 1, characterized in that: A sealing ring (16) is fixedly mounted on the inner wall of the rotating tube (2); a limiting groove is provided on the inner wall of the sealing ring (16); and the sealing ring (16) is made of rubber.

6. The hydraulic damper with adjustable damping force value according to claim 1, characterized in that: The bottom of the limiting tube (9) is fixedly connected to the inner bottom wall of the rotating tube (2); a sealing sleeve (17) is sleeved on the surface of the limiting tube (9); and the bottom of the sealing sleeve (17) is fixedly connected to the inner bottom wall of the limiting tube (9).

7. The hydraulic damper with adjustable damping force value according to claim 1, characterized in that: The inner bottom wall of the rotating tube (2) is inlaid with a ball (18), the bottom of the circular tube (3) is rollingly connected to the surface of the ball (18), and a tube hole for the circular tube (3) to pass through is opened on the rotating tube (2).

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