Damper

Abstract

The damper comprises a cylinder barrel, the two ends of the cylinder barrel are fixedly connected with a left end cover and a right end cover respectively, damping media are filled in the cylinder barrel, the end, close to the right end cover, of the cylinder barrel is fixedly connected with a protective shell, and the middle of the left end cover and the middle of the right end cover jointly penetrate through and are connected with a piston rod in a sliding mode. The cylinder barrel, the protection shell, the piston rod, the end plate, the piston head and the protection assembly are arranged, the end, located outside the cylinder barrel, of the piston rod is fixedly connected with the end plate, the protection assembly is fixedly connected between the end plate and the outer wall of the cylinder barrel, and the protection assembly is composed of the two annular sleeves and the folding pipe. Therefore, the part, exposed out of the cylinder barrel, of the piston rod can be wrapped by the folding pipe, the piston rod is protected, the annular sleeve is fixed through the locking bolt, and if the folding pipe is damaged, the whole protection assembly is convenient to disassemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to a damper. Background Art

[0002] Viscous dampers are made based on the principle of fluid movement, especially when fluid passes through a throttling hole, it will produce throttling resistance. It is a damper related to the speed of piston movement. It is widely used in high-rise buildings, bridges, seismic reconstruction of building structures, seismic resistance of industrial pipeline equipment, military industry and other fields.

[0003] However, when the existing viscous dampers used in buildings and bridges are actually installed and used, the piston rod outside the cylinder is completely exposed, and its surface does not have any protective structure. However, the environment of buildings and bridges is complex, and the surface of the piston rod is easily contaminated with dust, and once it is hit by stones or foreign objects, it is easy to be damaged, which affects the service life of the damper. Secondly, when the damper is maintained, the damper needs to be disassembled to replace the internal damping medium, which is not convenient to operate. Therefore, the utility model proposes a damper. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a damper.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a damper, comprising a cylinder, wherein the two ends of the cylinder are respectively fixedly connected with a left end cover and a right end cover, and the cylinder is filled with a damping medium, and the cylinder is fixedly connected with a protective shell at one end close to the right end cover, and a piston rod is penetrated through the middle of the left end cover and the right end cover and is slidably connected thereto, a piston head is fixedly connected to the middle surface of the piston rod, and the piston head is slidably connected to the inner wall of the cylinder, and a plurality of throttling holes connecting the two ends of the cylinder are provided on the piston head, and the end of the piston rod outside the cylinder is fixedly connected with an end plate, and a protective component is commonly connected between the surface of the end plate and the outer wall of the cylinder, and two symmetrical through holes are provided on the side wall of the cylinder close to the right end cover.

[0006] Furthermore, one end of the piston rod close to the right end cover is located inside the protective shell.

[0007] Furthermore, a connecting hole is opened in the middle of one end of the protective shell away from the cylinder, a screw is rotatably connected to the inner thread of the connecting hole, and a first pin is fixedly connected to one end of the screw outside the connecting hole, and a second pin is fixedly connected to the side of the end plate away from the piston rod.

[0008] Furthermore, a plurality of first sealing rings are fixedly connected to the outer side wall of the piston head.

[0009] Furthermore, a plurality of second sealing rings are fixedly connected to the contact positions of the left end cover and the right end cover with the piston rod.

[0010] Furthermore, the protective assembly includes two annular sleeves which are sleeved on the surface of the end plate and the outer wall of the cylinder, a folding tube is fixedly connected between the two annular sleeves, and multiple locking bolts are penetrated and threadedly connected to the side walls of the two annular sleeves.

[0011] Furthermore, a mounting groove is provided on one side of the through hole close to the outer surface of the cylinder, and a sealing bolt is rotatably connected to the inner thread of the mounting groove.

[0012] Beneficial effects of the utility model:

[0013] 1. When the utility model is in use, the damper is provided with a cylinder, a protective shell, a piston rod, an end plate, a piston head and a protective assembly. One end of the piston rod located outside the cylinder is fixedly connected to the end plate, and a protective assembly is fixedly connected between the end plate and the outer wall of the cylinder. The protective assembly consists of two annular sleeves and a folding tube. Therefore, the part of the piston rod exposed outside the cylinder will be wrapped by the folding tube, thereby protecting the piston rod. The annular sleeve is fixed by a locking bolt. If the folding tube is damaged, it is convenient to disassemble the entire protective assembly for replacement.

[0014] 2. When the utility model is in use, the damper is provided with a through hole, a mounting groove and a sealing bolt. By opening two through holes on the side wall of the cylinder, the damping medium in the cylinder can be extracted and replaced. The damping medium does not need to be disassembled to replace the damping medium, making the maintenance operation of the damper simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 : The overall stereogram of the utility model;

[0017] Figure 2 : An overall cross-sectional view of the utility model;

[0018] Figure 3 :The utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 :The utility model Figure 2 Enlarged view of point B in the middle.

[0020] The reference numerals are as follows:

[0021] 1. Cylinder barrel; 2. Left end cover; 3. Right end cover; 4. Protective shell; 5. Connecting hole; 6. Screw; 7. First pin head; 8. Piston rod; 9. End plate; 10. Second pin head; 11. Protective assembly; 111. Annular sleeve; 112. Folding tube; 113. Locking bolt; 12. Piston head; 13. Throttle hole; 14. First sealing ring; 15. Second sealing ring; 16. Perforation; 17. Mounting groove; 18. Sealing bolt. 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 of 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] like Figure 1-Figure 4 As shown, a damper is involved, including a cylinder 1, with a left end cover 2 and a right end cover 3 fixedly connected at both ends of the cylinder 1 respectively, and the cylinder 1 is filled with a damping medium, a protective shell 4 is fixedly connected to the end of the cylinder 1 close to the right end cover 3, a piston rod 8 is penetrated through the middle of the left end cover 2 and the right end cover 3 and is slidably connected, a piston head 12 is fixedly connected to the middle surface of the piston rod 8, and the piston head 12 is slidably connected to the inner wall of the cylinder 1, and a plurality of throttling holes 13 connecting the two ends of the cylinder 1 are opened on the piston head 12, an end of the piston rod 8 located outside the cylinder 1 is fixedly connected to an end plate 9, a protective component 11 is commonly connected between the surface of the end plate 9 and the outer wall of the cylinder 1, and two symmetrical through holes 16 are opened on the side wall of the cylinder 1 and close to the right end cover 3.

[0024] like Figure 2 As shown, one end of the piston rod 8 close to the right end cover 3 is located inside the protective shell 4. The protective shell 4 can protect the piston rod 8.

[0025] like Figure 1-Figure 2 As shown, a connecting hole 5 is opened in the middle of the end of the protective shell 4 away from the cylinder 1, and a screw rod 6 is rotatably connected to the inner thread of the connecting hole 5, and a first pin head 7 is fixedly connected to the end of the screw rod 6 outside the connecting hole 5, and a second pin head 10 is fixedly connected to the side of the end plate 9 away from the piston rod 8.

[0026] The damper can be installed and used by means of the first pin head 7 and the second pin head 10 .

[0027] like Figure 2 As shown, a plurality of first sealing rings 14 are fixedly connected to the outer side wall of the piston head 12 .

[0028] The first sealing ring 14 can play a sealing role between the piston head 12 and the inner wall of the cylinder 1 . When the piston head 12 moves inside the cylinder 1 , the damping medium can only pass through the throttle hole 13 .

[0029] like Figure 3 As shown, a plurality of second sealing rings 15 are fixedly connected to the contact positions of the left end cover 2 and the right end cover 3 with the piston rod 8 .

[0030] The second sealing ring 15 can increase the sealing between the piston rod 8 and the left end cover 2 and the right end cover 3 to prevent leakage of the damping medium.

[0031] like Figure 2 and Figure 3 As shown, the protective assembly 11 includes two annular sleeves 111 which are sleeved on the surface of the end plate 9 and the outer wall of the cylinder 1. A folding tube 112 is fixedly connected between the two annular sleeves 111. Multiple locking bolts 113 are penetrated through the side walls of the two annular sleeves 111 and are threadedly connected.

[0032] The annular sleeve 111 can be fixed by the locking bolt 113. When the end plate 9 moves with the piston rod 8, the folding tube 112 will follow and expand, ensuring that the piston rod 8 is always located inside the folding tube 112, thereby protecting the piston rod 8.

[0033] like Figure 2 and Figure 4 As shown, a mounting groove 17 is formed on one side of the through hole 16 close to the outer surface of the cylinder barrel 1 , and a sealing bolt 18 is rotatably connected to the inner thread of the mounting groove 17 .

[0034] The sealing bolt 18 can seal the perforation 16. When the damping medium inside the cylinder 1 needs to be replaced, the sealing bolt 18 can be unscrewed, the damping medium can be sucked out first, and then new damping medium can be injected into the cylinder 1 from the bottom perforation 16. When the damping medium emerges from the top perforation 16, the injection is stopped, and then the sealing bolt 18 can be screwed on.

[0035] Working principle: The damper can be installed and used through the first pin head 7 and the second pin head 10. When the building or bridge shakes due to vibration, it will drive the piston rod 8 to move inside the cylinder 1, and the piston rod 8 will drive the piston head 12 to move. The damping medium will flow through the throttle hole 13 at both ends of the cylinder 1, and the mechanical energy of the building will be converted into heat through friction and consumed. During the movement of the piston rod 8, the folding tube 112 of the protective component 11 is always located on the surface of the piston rod 8 to protect the piston rod 8.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A damper, comprising a cylinder (1), characterized in that: The two ends of the cylinder barrel (1) are respectively fixedly connected with a left end cover (2) and a right end cover (3), and the cylinder barrel (1) is filled with a damping medium. The end of the cylinder barrel (1) close to the right end cover (3) is fixedly connected with a protective shell (4). The middle parts of the left end cover (2) and the right end cover (3) are penetrated by a piston rod (8) and slidably connected. The middle surface of the piston rod (8) is fixedly connected with a piston head (12), and the piston head (12) is slidably connected to the inner wall of the cylinder barrel (1). The piston head (12) is provided with a plurality of throttling holes (13) connecting the two ends of the cylinder barrel (1). The end of the piston rod (8) located outside the cylinder barrel (1) is fixedly connected with an end plate (9), and a protective component (11) is commonly connected between the surface of the end plate (9) and the outer wall of the cylinder barrel (1). Two symmetrical through holes (16) are provided on the side wall of the cylinder barrel (1) and close to the end of the right end cover (3).

2. A damper according to claim 1, characterized in that: The end of the piston rod (8) close to the right end cover (3) is located inside the protective shell (4).

3. A damper according to claim 1, characterized in that: A connecting hole (5) is provided in the middle of one end of the protective shell (4) away from the cylinder barrel (1); a screw rod (6) is rotatably connected to the inner thread of the connecting hole (5); and a first pin head (7) is fixedly connected to the end of the screw rod (6) outside the connecting hole (5); and a second pin head (10) is fixedly connected to the side of the end plate (9) away from the piston rod (8).

4. A damper according to claim 1, characterized in that: A plurality of first sealing rings (14) are fixedly connected to the outer side wall of the piston head (12).

5. A damper according to claim 1, characterized in that: A plurality of second sealing rings (15) are fixedly connected to the contact positions between the left end cover (2) and the right end cover (3) and the piston rod (8).

6. A damper according to claim 1, characterized in that: The protection assembly (11) comprises two annular sleeves (111) sleeved on the surface of the end plate (9) and the outer wall of the cylinder (1), a folding tube (112) being fixedly connected between the two annular sleeves (111), and a plurality of locking bolts (113) passing through and being threadedly connected to the side walls of the two annular sleeves (111).

7. A damper according to claim 1, characterized in that: A mounting groove (17) is provided on one side of the through hole (16) close to the outer surface of the cylinder barrel (1), and a sealing bolt (18) is rotatably connected to the inner thread of the mounting groove (17).

Images