Damper with adjustable damping

Abstract

The utility model discloses a damper with adjustable damping, which relates to the technical field of dampers and comprises a piston cylinder, a sliding cylinder and a through hole, a rotating ring is rotatably connected to the outer wall of the open end of the sliding cylinder, a baffle attached to the outer wall of the sliding cylinder is fixed between a rotating disc and the rotating ring, and a push-pull mechanism used for movably adjusting the baffle is arranged on the outer wall of the piston cylinder. A protection mechanism used for enhancing the using effect of the push-pull mechanism is further arranged outside the piston cylinder. Through the arrangement of the protection mechanism, after the pull rod slides and the baffle is movably adjusted, the sealing cover in the protection mechanism is rotated to be in a horizontal state, and the piston barrel is clamped by utilizing the notch in the bottom surface of the sealing cover, so that the sealing cover, the supporting plate and the two connecting plates are matched to form a box body combination from the outside of the pull rod; therefore, the arc-shaped groove is effectively sealed to prevent the arc-shaped groove from being directly protected outwards to prevent a large amount of sludge and impurities from entering.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, and specifically relates to a damper with adjustable damping. Background Technique

[0002] With the different magnitudes of seismic actions, the rare earthquake action is generally 5 to 6 times that of the frequent earthquake action, and its energy dissipation demand for the structure will also change. However, the damping effect of traditional viscous dampers is constant. In actual use, it is necessary to adjust the damping of the damper according to different usage environments to make the damper achieve a better shock absorption effect.

[0003] There is a damper with adjustable damping in the prior art with the patent publication number CN219795937U. The above patent can adjust the damping parameters of the damper according to the actual usage environment, so that the damper can achieve a better shock absorption effect in different environments and extend the service life of the damper.

[0004] When actually adjusting the damping of the damper, it is necessary to manually push and pull the pull rod to drive the baffle to slide on the outer wall of the sliding cylinder, so as to adjust the number of the through holes on the sliding cylinder shielded by the baffle, and control the shock absorption and buffer energy consumption of the damper;

[0005] Moreover, when pushing and pulling the pull rod, the rotating rod can slide synchronously in the arc-shaped groove, and the rotating rod slides in the sliding groove. Although it can make the disc and the rotating ring move synchronously to a certain extent, in practice, the arc-shaped groove and the sliding groove are mostly directly exposed, lacking a certain protection structure. Therefore, when the damper is used on the vehicle chassis for a long time, a large amount of sludge and impurities are likely to enter the arc-shaped groove and the sliding groove. The entry of a large amount of impurities will inevitably hinder the sliding performance of the later pull rod and the rotating rod, affect the adjustment efficiency of the baffle, and reduce the practicability. Summary of the Utility Model

[0006] To solve the above technical problems, a damper with adjustable damping is provided, which solves the problem that in the prior art, the arc-shaped groove and the sliding groove are mostly directly exposed in actual application and lack a certain protection structure. Therefore, when the damper is used on the vehicle chassis for a long time, a large amount of sludge and impurities are likely to enter the arc-shaped groove and the sliding groove. The entry of a large amount of impurities will inevitably hinder the sliding performance of the later pull rod and the rotating rod, affect the adjustment efficiency of the baffle, and reduce the practicability.

[0007] To achieve the above object, the technical solution adopted by the present utility model is as follows: A damper with adjustable damping includes a piston cylinder, a sliding cylinder disposed inside the piston cylinder, and a plurality of through holes equidistantly formed on the outer wall of the sliding cylinder. One end of the sliding cylinder is open and fixed to the inner wall on one side of the piston cylinder. A turntable is rotatably connected between the other end of the sliding cylinder and the inner wall on the other side of the piston cylinder. A rotating ring is rotatably connected to the outer wall of the open end of the sliding cylinder. A baffle plate that fits the outer wall of the sliding cylinder is fixed between the turntable and the rotating ring. A push-pull mechanism for movably adjusting the baffle plate is disposed on the outer wall of the piston cylinder. A protection mechanism for enhancing the use effect of the push-pull mechanism is further disposed outside the piston cylinder;

[0008] The push-pull mechanism includes a pull rod slidably disposed on the outer wall of the piston cylinder. Connecting blocks are fixed to both ends of the pull rod. Arc-shaped grooves are formed on the outer walls on the left and right sides of the piston cylinder. The two connecting blocks are respectively slidably disposed in the two arc-shaped grooves, and the two connecting blocks are respectively fixed to the outer walls of the turntable and the rotating ring;

[0009] The protection mechanism includes two connecting plates symmetrically fixed to the outer wall of the piston cylinder. A support plate is vertically fixed to the end of one of the connecting plates. A cover is hinged to the end of the other connecting plate. Notches adapted to the outer wall of the piston cylinder are formed on the front and rear sides of the bottom surface of the cover. The support plate, the two connecting plates, and the cover form a box structure. The pull rod is located inside the cover. A power assembly for applying force to the pull rod is disposed on the support plate.

[0010] Preferably, locking studs are threadedly penetrated through both sides of the top of the support plate. Threaded holes adapted to the locking studs are formed on the surface of the cover facing the support plate.

[0011] Preferably, the power assembly includes a threaded rod rotatably disposed inside the inner wall of the support plate, a threaded sleeve threadedly connected to the rod body of the threaded rod, and a concave block fixed to the top surface of the pull rod. A push-pull rod is hinged inside the concave block. The end of the push-pull rod is hinged to the outer wall of the threaded sleeve.

[0012] Preferably, guide rods are disposed on both sides of the threaded sleeve. Sliders fixed to the outer wall of the threaded sleeve are slidably disposed on the rod bodies of the guide rods.

[0013] Preferably, a torsion block is fixed to the end of the threaded rod away from the cover. Anti-slip lines are formed on the outer wall of the torsion block.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] (1) Through the setting of the protection mechanism, after the sliding pull rod is adjusted to complete the movement adjustment of the baffle, rotate the cover in the protection mechanism to the horizontal state, and use the notch on its bottom surface to clamp the piston cylinder. In this way, the cooperation of the cover, the support plate and the two connecting plates can form a box combination from the outside of the pull rod, thereby effectively sealing the arc-shaped groove to prevent a large amount of sludge and impurities from directly entering the arc-shaped groove from the outside protection.

[0016] (2) Through the setting of the power assembly, when the protection mechanism seals and protects the push-pull mechanism, only need to turn the knob block, then the threaded sleeve can slide by the threaded structure during the rotation of the threaded rod, and use the push-pull rod to push and pull the concave block and the pull rod as a whole. In this way, without loosening the locking stud and opening the cover, it is convenient for manual operation to quickly slide the pull rod outside the box structure, enhancing the convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the separated structure of the present invention and the support plate;

[0019] Figure 3 is a schematic diagram of the internal structure of the piston cylinder of the present invention;

[0020] Figure 4 For the present invention Figure 2 is a schematic diagram of the structure at position A in the present invention.

[0021] The reference numerals in the figure are:

[0022] 1, piston cylinder; 2, sliding cylinder; 3, piston rod; 4, baffle; 5, turntable; 6, rotating ring; 7, pull rod; 8, connecting block; 9, cover; 10, support plate; 11, connecting plate; 12, threaded sleeve; 13, concave block; 14, push-pull rod; 15, threaded rod; 16, knob block; 17, guide rod; 18, slider; 19, locking stud. DETAILED DESCRIPTION OF THE INVENTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0024] Refer to Figures 1-4As shown in the figure, a damper with adjustable damping includes a piston cylinder 1, a sliding cylinder 2 arranged inside the piston cylinder 1, and a number of through holes evenly opened on the outer wall of the sliding cylinder 2. One end of the sliding cylinder 2 is open and fixed to the inner wall on one side of the piston cylinder 1. There is a rotating disc 5 rotatably connected between the other end of the sliding cylinder 2 and the inner wall on the other side of the piston cylinder 1. There is a rotating ring 6 rotatably connected to the outer wall of the open end of the sliding cylinder 2. A baffle 4 that fits against the outer wall of the sliding cylinder 2 is fixed between the rotating disc 5 and the rotating ring 6. A piston rod 3 is slidably arranged inside the open end of the sliding cylinder 2. The piston rod 3 passes through the right end of the piston cylinder 1. A support shaft is fixedly connected to the left end of the piston cylinder 1. Mounting blocks are fixedly connected to the opposite ends of the support shaft and the piston rod 3 respectively;

[0025] A push-pull mechanism for actively adjusting the baffle 4 is arranged on the outer wall of the piston cylinder 1;

[0026] The push-pull mechanism includes a pull rod 7 slidably arranged on the outer wall of the piston cylinder 1. Connecting blocks 8 are fixed to both ends of the pull rod 7. Arc-shaped grooves are opened on the outer walls on the left and right sides of the piston cylinder 1. The two connecting blocks 8 are respectively slidably arranged in the two arc-shaped grooves, and the two connecting blocks 8 are respectively fixedly connected to the outer walls of the rotating disc 5 and the rotating ring 6;

[0027] By providing a viscous damping liquid filled in the sliding cylinder 2, if the piston cylinder 1 vibrates during daily use, two situations will occur. The first is when the distance between the piston rod 3 and the piston cylinder 1 decreases, the piston rod 3 drives the damping liquid in the sliding cylinder 2 to move leftward by extrusion, causing the damping liquid to flow into the left piston cylinder 1 through the through holes. Because the through holes are small and the damping liquid is viscous, when the piston rod 3 squeezes the damping liquid, the squeezed damping liquid flows into the piston cylinder 1 through the through holes. The damping liquid converts the mechanical energy transmitted by the structure into heat energy and dissipates it during the high-speed flow process, thereby playing a role in shock absorption, buffering and energy consumption;

[0028] The second situation is when the distance between the piston rod 3 and the piston cylinder 1 increases, the piston rod 3 will push the damping liquid in the sliding cylinder 2 to move rightward, and the damping liquid flows into the right piston cylinder 1 through the through holes. Because the through holes are small and the damping liquid is viscous, when the piston rod 3 squeezes the damping liquid, the squeezed damping liquid flows into the piston cylinder 1 through the through holes. The damping liquid converts the mechanical energy transmitted by the structure into heat energy and dissipates it during the high-speed flow process, thereby playing a role in shock absorption, buffering and energy consumption;

[0029] When adjusting the damping of the damper, push the pull rod 7, and the connecting blocks 8 at both ends of the pull rod 7 will respectively slide in the corresponding arc-shaped grooves, and simultaneously act on the rotating disc 5 and the rotating ring 6 to rotate inside the piston cylinder 1, thereby driving the rotating ring 6 to rotate on the outer wall of the sliding cylinder 2, controlling the number of through holes blocked by the rotating ring 6, so that the energy consumption of shock absorption and buffering changes, and the damping of the damper is adjusted.

[0030] However, in practice, the arc-shaped groove is mostly directly exposed in actual applications and lacks a certain protective structure. Therefore, when the piston cylinder 1 is used on the vehicle chassis for a long time, a large amount of sludge and impurities are likely to enter the arc-shaped groove. The entry of a large amount of impurities will inevitably hinder the sliding of the connecting block 8 in the later stage, affect the adjustment efficiency of the baffle 4, and reduce the practicality;

[0031] In view of this, referring to Figures 1-2 as shown, it is worth noting that a protective mechanism for enhancing the use effect of the push-pull mechanism is also provided outside the piston cylinder 1;

[0032] The protective mechanism includes two connecting plates 11 symmetrically fixed on the outer wall of the piston cylinder 1. A support plate 10 is vertically fixed at the end of one of the connecting plates 11, and a cover 9 is hinged at the end of the other connecting plate 11. Notches adapted to the outer wall of the piston cylinder 1 are formed on both the front and rear sides of the bottom surface of the cover 9. The support plate 10, the two connecting plates 11, and the cover 9 form a box structure, and the pull rod 7 is located inside the cover 9;

[0033] Through the setting of the protective mechanism, after sliding the pull rod 7 to complete the movable adjustment of the baffle 4, rotate the cover 9 in the protective mechanism to the horizontal state, and use the notch on its bottom surface to clamp the piston cylinder 1. In this way, the cover 9, the support plate 10, and the two connecting plates 11 cooperate to form a box combination from the outside of the pull rod 7, thereby effectively sealing the arc-shaped groove to prevent the arc-shaped groove from being directly protected outward and a large amount of sludge and impurities from entering.

[0034] Furthermore, referring to Figure 2 as shown, it is worth noting that locking studs 19 are threaded through both sides of the top of the support plate 10, and threaded holes adapted to the locking studs 19 are formed on the surface of the cover 9 facing the support plate 10;

[0035] After rotating the cover 9 so that the two connecting plates 11, the cover 9, and the support plate 10 form a box structure, then turn the locking studs 19, so that the locking studs 19 penetrate into the corresponding threaded holes on the cover 9 through the threaded structure, and the cover 9 can be effectively locked, thereby ensuring the stability of the cover 9 after rotation and ensuring the stability of the box structure.

[0036] Furthermore, referring to Figure 2 and Figure 3 as shown, it is worth noting that a power component for applying force to the pull rod 7 is provided on the support plate 10;

[0037] The power component includes a threaded rod 15 rotatably arranged inside the support plate 10, a threaded sleeve 12 threadedly connected to the rod body of the threaded rod 15, and a concave block 13 fixed on the top surface of the pull rod 7. A push-pull rod 14 is hinged inside the concave block 13, and the end of the push-pull rod 14 is hinged to the outer wall of the threaded sleeve 12;

[0038] One end of the threaded rod 15 away from the cover 9 is fixed with a torsion block 16, and anti-slip lines are provided on the outer wall of the torsion block 16;

[0039] Through the setting of the power assembly, when the protection mechanism seals and protects the push-pull mechanism, only by rotating the torsion block 16, the threaded sleeve 12 can slide by the thread structure during the rotation of the threaded rod 15, and the push-pull rod 14 is used to push and pull the concave block 13 and the pull rod 7 as a whole. In this way, without loosening the locking stud 19 and opening the cover 9, the sliding operation of the pull rod 7 can be conveniently and quickly performed by the operator outside the box structure, enhancing the convenience.

[0040] Furthermore, referring to Figure 4 As shown, it is worth noting that guide rods 17 are provided on both sides of the threaded sleeve 12, and sliders 18 fixed to the outer wall of the threaded sleeve 12 are slidably arranged on the rod bodies of the guide rods 17;

[0041] Through the setting of the guide rods 17 and the sliders 18, when the threaded sleeve 12 slides, the slider 18 can slide synchronously on the rod body of the guide rod 17, so that the guide rod 17 cooperates with the slider 18 to limit the movement track of the threaded sleeve 12.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A damper with adjustable damping, comprising a piston cylinder (1), a slide cylinder (2) arranged inside the piston cylinder (1), and a plurality of through holes equidistantly opened on the outer wall of the slide cylinder (2), one end of the slide cylinder (2) is open and fixed to the inner wall of one side of the piston cylinder (1), a turntable (5) is rotatably connected between the other end of the slide cylinder (2) and the inner wall of the other side of the piston cylinder (1), a swivel (6) is rotatably connected to the outer wall of the open end of the slide cylinder (2), a baffle (4) is fixed between the turntable (5) and the swivel (6) and is in contact with the outer wall of the slide cylinder (2), characterized in that: A push-pull mechanism for movably adjusting the baffle plate (4) is arranged on the outer wall of the piston cylinder (1), and a protective mechanism for enhancing the use effect of the push-pull mechanism is also arranged on the outside of the piston cylinder (1); The push-pull mechanism comprises a pull rod (7) slidably arranged on the outer wall of the piston cylinder (1), and connecting blocks (8) are fixed at both ends of the pull rod (7). The outer walls on the left and right sides of the piston cylinder (1) are provided with arc grooves, and the two connecting blocks (8) are respectively slidably arranged in the two arc grooves, and the two connecting blocks (8) are respectively fixedly connected to the outer walls of the rotating disk (5) and the rotating ring (6); The protection mechanism comprises two connecting plates (11) symmetrically fixed on the outer wall of the piston cylinder (1), wherein a support plate (10) is vertically fixed to the end of one of the connecting plates (11), and a cover (9) is hingedly connected to the end of the other connecting plate (11), and the front and rear sides of the bottom surface of the cover (9) are provided with recesses matching the outer wall of the piston cylinder (1), the support plate (10), the two connecting plates (11) and the cover (9) constitute a box structure, the pull rod (7) is located on the inner side of the cover (9), and a power component for applying force to the pull rod (7) is provided on the support plate (10).

2. The damper with adjustable damping according to claim 1, characterized in that: Locking studs (19) are threadedly penetrated on both sides of the top of the support plate (10), and a threaded hole matched with the locking studs (19) is opened on one side of the cover (9) facing the support plate (10).

3. The damper with adjustable damping according to claim 2, characterized in that: The power assembly comprises a threaded rod (15) rotatably arranged in the inner wall of the support plate (10), a threaded sleeve (12) threadedly connected to the rod body of the threaded rod (15), and a concave block (13) fixed on the top surface of the pull rod (7), a push-pull rod (14) is hingedly connected to the inner side of the concave block (13), and the end of the push-pull rod (14) is hingedly connected to the outer wall of the threaded sleeve (12).

4. The damper with adjustable damping according to claim 3, characterized in that: Guide rods (17) are provided on both sides of the threaded sleeve (12), and a sliding block (18) fixed to the outer wall of the threaded sleeve (12) is slidably provided on the rod body of the guide rod (17).

5. The damper with adjustable damping according to claim 4, characterized in that: A twist block (16) is fixed to one end of the threaded rod (15) away from the sealing cover (9), and an anti-slip pattern is provided on the outer wall of the twist block (16).

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