Protective viscous damper

Abstract

The utility model relates to viscous damper field especially relates to a protection formula viscous damper, including viscous damper body, and the viscous damper body includes cylinder, piston rod, and the piston rod one end slidingly arranged in the cylinder, and the piston rod outer wall one end fixedly covers and sets up the locating ring ring, and the locating ring ring, cylinder adjacent surface one side all are provided with the locating ring seat, and the piston rod outer wall is located between the locating ring ring, cylinder and covers and sets up the protection subassembly, in the utility model, through the setting of protection subassembly, the exposed piston rod between locating ring ring and cylinder is wrapped, forms a physical barrier, prevents dust to adhere to the outside of piston rod, and is accompanied with piston rod movement and enters the cylinder inside, cooperate the setting of miniature breathing valve body simultaneously, in the piston rod telescopic process of viscous damper body, ensure the balance of the air pressure in telescopic dust cover inside.

Description

Technical Field

[0001] This utility model relates to the field of viscous damper technology, and in particular to a protective viscous damper. Background Technology

[0002] Viscous dampers are passive energy dissipation and vibration reduction devices widely used in civil engineering structures. Their core function is to reduce the vibration response of the structure under dynamic loads such as earthquakes and strong winds by converting the kinetic energy of structural vibrations into heat energy and dissipating it, thereby protecting the structural safety and internal facilities.

[0003] In some existing viscous dampers, the reciprocating piston rod outside the cylinder is completely exposed to the environment. Dust, gravel, cement powder, and other contaminants easily adhere to the piston rod surface. When the piston rod retracts into the cylinder, these contaminants are directly carried into the sealing area and inside the cylinder. Although some viscous dampers have dust covers on the outside of the piston rod, most do not consider the small gas volume changes inside the cylinder caused by piston movement. When the dust cover extends or retracts, the internal air will generate a certain aerodynamic resistance due to compression or expansion. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a protective viscous damper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A protective viscous damper includes a viscous damper body, the viscous damper body includes a cylinder and a piston rod, one end of the piston rod is slidably disposed in the cylinder, and a positioning ring is fixedly sleeved on one end of the outer wall of the piston rod. A positioning ring seat is provided on one side of the adjacent surface of the positioning ring and the cylinder, and a protective component is sleeved on the outer wall of the piston rod between the positioning ring and the cylinder.

[0007] The protective assembly includes a telescopic dust cover. An extension ring is fixedly installed at one end of the telescopic dust cover. A vent is provided on one side of the outer wall of the extension ring, and a miniature breathing valve body is provided at the vent. Limiting rings are installed at one end of the extension ring and the other end of the telescopic dust cover. Mounting rings are symmetrically mounted and slidably fitted on both sides of the outer wall of the telescopic dust cover, and the two mounting rings are threadedly connected to the corresponding positioning ring seats.

[0008] Furthermore, in a preferred configuration, the outer wall of the positioning ring seat is provided with an external thread, and one end of the mounting ring is provided with a mounting groove at the positioning ring seat. An internal thread is provided in the mounting groove at the external thread, and the internal thread is threadedly connected to the external thread.

[0009] Furthermore, in a preferred configuration, a movable hole is provided inside the mounting ring on one side of the mounting groove, and the inner diameter of the movable hole is larger than the outer diameter of the extension ring.

[0010] In addition, a preferred structure is that a fixing ring seat is fixedly installed on one side of the positioning ring and the cylinder, and located outside the positioning ring seat, and a magnetic ring is fixedly installed at one end of the fixing ring seat.

[0011] In addition, a preferred structure is that one end of the mounting ring has a slot for inserting the magnetic ring and the fixing ring seat, and a magnetic layer with opposite polarity to the magnetic ring is provided on one side of the slot near the middle of the telescopic dust cover.

[0012] In addition, a preferred structure is that a locking ring is fixedly installed on the side of the limiting ring away from the telescopic dust cover, and a locking groove for the locking ring to be inserted is provided on one side of the positioning ring seat.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this invention, the protective components wrap around the piston rod exposed between the positioning ring and the cylinder, forming a physical barrier to prevent dust from adhering to the outside of the piston rod and entering the cylinder as the piston rod moves. At the same time, in conjunction with the miniature breather valve body, the air pressure inside the telescopic dust cover is kept balanced during the extension and retraction of the piston rod of the viscous damper body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a protective viscous damper proposed in this utility model;

[0016] Figure 2 This is a partially disassembled and cross-sectional structural diagram of a protective viscous damper proposed in this utility model.

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0019] Figure 5 for Figure 2 Enlarged structural diagram at point C;

[0020] Figure 6 for Figure 2 Enlarged structural diagram at point D.

[0021] In the figure: 1. Viscous damper body; 11. Cylinder; 12. Piston rod; 2. Protective components; 21. Telescopic dust cover; 22. Mounting ring; 23. Extension ring; 24. Limiting ring; 25. Locking ring; 3. Positioning ring; 4. Fixing ring seat; 41. Magnetic ring; 5. Positioning ring seat; 6. Miniature breather valve body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-6 A protective viscous damper includes a viscous damper body 1, which includes a cylinder 11 and a piston rod 12. One end of the piston rod 12 is slidably disposed inside the cylinder 11, and a positioning ring 3 is fixedly sleeved on one end of the outer wall of the piston rod 12. A positioning ring seat 5 is provided on one side of the adjacent surface of the positioning ring 3 and the cylinder 11, and a protective component 2 is sleeved on the outer wall of the piston rod 12 between the positioning ring 3 and the cylinder 11.

[0024] Meanwhile, the protective component 2 includes a telescopic dust cover 21. An extension ring 23 is fixedly installed at one end of the telescopic dust cover 21. A vent hole is opened on one side of the outer wall of the extension ring 23, and a miniature breathing valve body 6 is provided at the vent hole. Limiting rings 24 are installed at one end of the extension ring 23 and the other end of the telescopic dust cover 21. Mounting rings 22 are symmetrically mounted and slidably sleeved on both sides of the outer wall of the telescopic dust cover 21, and the two mounting rings 22 are threadedly connected to the corresponding positioning ring seats 5.

[0025] Furthermore, the outer wall of the positioning ring seat 5 is provided with an external thread, and one end of the mounting ring 22 is provided with a mounting groove at the positioning ring seat 5. An internal thread is provided in the mounting groove at the external thread, and the internal thread is threadedly connected to the external thread.

[0026] Furthermore, a movable hole is provided inside the mounting ring 22 on one side of the mounting groove, and the inner diameter of the movable hole is larger than the outer diameter of the extension ring 23.

[0027] Furthermore, a fixing ring seat 4 is fixedly installed on one side of the adjacent surface of the positioning ring 3 and the cylinder 11, and located outside the positioning ring seat 5. A magnetic ring 41 is fixedly installed at one end of the fixing ring seat 4.

[0028] Furthermore, one end of the mounting ring 22 is provided with a slot for inserting the magnetic ring 41 and the fixing ring seat 4, and a magnetic layer with opposite polarity to the magnetic ring 41 is provided on one side of the slot near the middle of the telescopic dust cover 21.

[0029] Meanwhile, a locking ring 25 is fixedly installed on the side of the limiting ring 24 away from the telescopic dust cover 21, and a locking groove for the locking ring 25 to be inserted is opened on one side of the positioning ring seat 5.

[0030] It is worth noting that the specific structure, connection method, and working principle of the viscous damper body 1, cylinder 11, and piston rod 12 are all existing technologies that are already publicly available on the market, so they will not be elaborated further. Furthermore, the miniature breathing valve body 6 is a bidirectional ventilation miniature breathing valve, and the miniature breathing valve body 6 is equipped with a PTFE filter membrane. The model of the miniature breathing valve body 6 is ParkerPRB3-M (the figure is only a simplified schematic diagram). The specific structure and working principle of the miniature breathing valve body 6 are all existing technologies that are already publicly available on the market, so they will not be elaborated further.

[0031] Furthermore, a sealing ring 1 is fixedly embedded at one end of the mounting ring and outside the slot, and a sealing ring 22 is fixedly embedded on the side of the limiting ring 24 near the telescopic dust cover. Both the miniature breathing valve body 6 and the vent hole are sealed.

[0032] In this embodiment, the telescopic dust cover 21 is used to cover the piston rod 12 exposed between the positioning ring 3 and the cylinder 11, forming a physical barrier to prevent dust from adhering to the outside of the piston rod 12 and entering the inside of the cylinder 11 as the piston rod moves.

[0033] Meanwhile, through the setting of the miniature breathing valve body 6, during the extension and retraction of the piston rod of the viscous damper body 1, air is allowed to pass through in both directions and in small amounts when the pressure difference between the inside and outside reaches the set value, ensuring the balance of air pressure inside the telescopic dust cover. It is also equipped with a PTFE filter membrane, which can block external dust from entering the telescopic dust cover.

[0034] By threading the mounting ring 22 to the adjacent positioning ring seat 5, and when the threaded connection is complete, the magnetic ring 41 of the mounting ring 22 is magnetically connected to the magnetic layer of the adjacent mounting ring 22, ensuring the stability of the mounting ring 22 after it is connected to the positioning ring seat 5.

[0035] In this invention, the protective component 2 is used to wrap around the piston rod 12 exposed between the positioning ring 3 and the cylinder 11, forming a physical barrier to prevent dust from adhering to the outside of the piston rod 12 and entering the inside of the cylinder 11 as the piston rod moves. At the same time, in conjunction with the miniature breathing valve body 6, the air pressure inside the telescopic dust cover is kept balanced during the extension and retraction of the piston rod of the viscous damper body 1.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective viscous damper, comprising a viscous damper body (1), characterized in that, The viscous damper body (1) includes a cylinder (11) and a piston rod (12). One end of the piston rod (12) is slidably disposed inside the cylinder (11), and a positioning ring (3) is fixedly sleeved on one end of the outer wall of the piston rod (12). A positioning ring seat (5) is provided on one side of the adjacent surface of the positioning ring (3) and the cylinder (11), and a protective component (2) is sleeved on the outer wall of the piston rod (12) between the positioning ring (3) and the cylinder (11). The protective component (2) includes a telescopic dust cover (21). An extension ring (23) is fixedly installed at one end of the telescopic dust cover (21). A vent is provided on one side of the outer wall of the extension ring (23), and a miniature breathing valve body (6) is provided at the vent. Limiting rings (24) are installed at one end of the extension ring (23) and the other end of the telescopic dust cover (21). Installation rings (22) are symmetrically installed and slidably fitted on both sides of the outer wall of the telescopic dust cover (21), and the two installation rings (22) are threadedly connected to the corresponding positioning ring seat (5).

2. A protective viscous damper according to claim 1, characterized in that, The outer wall of the positioning ring seat (5) is provided with an external thread, and one end of the mounting ring (22) is provided with a mounting groove at the positioning ring seat (5). An internal thread is provided in the mounting groove at the external thread, and the internal thread is threadedly connected to the external thread.

3. A protective viscous damper according to claim 2, characterized in that, The mounting ring (22) has a movable hole on one side of the mounting groove, and the inner diameter of the movable hole is larger than the outer diameter of the extension ring (23).

4. A protective viscous damper according to claim 1, characterized in that, A fixed ring seat (4) is fixedly installed on one side of the adjacent surface of the positioning ring (3) and the cylinder (11) and outside the positioning ring seat (5). A magnetic ring (41) is fixedly installed at one end of the fixed ring seat (4).

5. A protective viscous damper according to claim 1, characterized in that, The mounting ring (22) has a slot at one end for inserting the magnetic ring (41) and the fixing ring seat (4), and a magnetic layer with opposite polarity to the magnetic ring (41) is provided on one side of the middle of the telescopic dust cover (21) inside the slot.

6. A protective viscous damper according to claim 1, characterized in that, The limiting ring (24) is fixedly installed with a locking ring (25) on the side away from the telescopic dust cover (21), and a locking groove for the locking ring (25) is opened on the side of the positioning ring seat (5).

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