A gap self-adjusting viscous damper

Abstract

The utility model provides a gap self -adjusting viscous damper relates to viscous damper field, include: damper cylinder body mechanism, damper cylinder body mechanism includes cylinder, end cover and first installation head, the inside of cylinder is provided with piston mechanism, piston mechanism includes guide rod, piston body, annular groove, through -hole, sealing washer and adjusting groove, the inside of piston mechanism is provided with length adjusting assembly, length adjusting assembly includes adjusting rod, screw groove, second installation head, internal thread fixed block and fastening bolt. The utility model, piston body becomes fierce in the activity of cylinder, along with the increase of damping medium flow velocity, pressure also increases in turn, and then the damping medium in annular groove inside extrudes the inboard of sealing washer, makes the through -hole outward extension, reduces the gap size of sealing washer outer wall and cylinder inner wall, and then increases the damping effect, through pressure extrudes the inboard of sealing washer, and then adjusts the gap.

Description

Technical Field

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

[0002] A viscous damper is a damper that is made based on the principle that fluid motion, especially when fluid passes through a throttling orifice, generates throttling resistance. It is related to the piston's motion speed and usually consists of a cylinder, piston, damping orifice, viscous fluid, and guide rod. The piston divides the cylinder into two parts. When the piston reciprocates in the cylinder, the damping medium flows rapidly in the two separated cavities.

[0003] In the existing technology, the gap between the outer wall of the piston and the inner wall of the cylinder in the viscous damper is relatively fixed, making it difficult to self-adjust according to different situations. This results in a relatively fixed damping effect of the damper. Furthermore, since the overall length of the viscous damper is difficult to change, the actual installation position is difficult to match the initial length of the damper, which reduces the installation accuracy of the damper. Utility Model Content

[0004] The purpose of this utility model is to provide a self-adjusting viscous damper to solve the problems mentioned in the background art, such as the relatively fixed gap between the outer wall of the piston and the inner wall of the cylinder in the viscous damper, which makes it difficult to self-adjust according to different situations, resulting in a relatively fixed damping effect of the damper. Furthermore, since the overall length of the current viscous damper is difficult to change, the actual installation position is difficult to match the initial length of the damper, which reduces the installation accuracy of the damper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: including a damper cylinder mechanism, wherein the damper cylinder mechanism includes a cylinder barrel, an end cap and a first mounting head, wherein a piston mechanism is provided inside the cylinder barrel, wherein the piston mechanism includes a guide rod, a piston body, an annular groove, a through hole, a sealing ring and an adjusting groove, wherein a length adjusting assembly is provided inside the piston mechanism, wherein the length adjusting assembly includes an adjusting rod, a threaded groove, a second mounting head, an internal thread fixing block and a fastening bolt.

[0006] In a preferred embodiment, the inner walls of both ends of the cylinder are movably connected to the outer wall of the end cap, and one end of the cylinder is fixedly connected to one side of the first mounting head.

[0007] In a preferred embodiment, the inner wall of the cylinder is movably connected to the outer wall of the guide rod, and the outer wall of the guide rod is fixedly connected to the inner wall of the piston body.

[0008] In a preferred embodiment, annular grooves are provided on both sides of the piston body, and a through hole is provided on one side of the annular groove.

[0009] In a preferred embodiment, the inner wall of the annular groove is movably connected to the outer wall of the sealing ring, and an adjustment groove is provided inside one end of the guide rod.

[0010] In a preferred embodiment, the inner wall of the adjusting groove is movably connected to the outer wall of the adjusting rod, and multiple sets of threaded grooves are evenly formed on the top of the adjusting rod.

[0011] In a preferred embodiment, one end of the adjusting rod is fixedly connected to one side of the second mounting head, and one side of the second mounting head is fixedly connected to one side of the internal thread fixing block.

[0012] In a preferred embodiment, the inner wall of the internal threaded fixing block is threadedly connected to the outer wall of the fastening bolt, and the outer wall of the fastening bolt is threadedly connected to the inner thread of the threaded groove.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, when the external vibration force is large, the piston body moves more violently in the cylinder. As the flow speed of the damping medium increases, the pressure also increases. Consequently, the damping medium located inside the annular groove squeezes the inner side of the sealing ring, causing the through hole to extend outward, thereby reducing the gap between the outer wall of the sealing ring and the inner wall of the cylinder, thus increasing the damping effect. By squeezing the inner side of the sealing ring with pressure, the gap is adjusted.

[0015] 2. In this utility model, rotating the fastening bolt moves it away from the inside of the threaded groove, and moving the second mounting head causes the adjusting rod to move inside the adjusting groove, thereby adjusting the overall length of the device. After the length is appropriate, rotating the fastening bolt causes it to enter the inside of the threaded groove, thereby locking the adjusted adjusting rod. The first and second mounting heads are then used to install the device at the desired position, which facilitates the adjustment of the overall length of the device and increases the accuracy of the device installation. Attached Figure Description

[0016] Figure 1 A schematic diagram of a gap-self-adjusting viscous damper provided by this utility model;

[0017] Figure 2 A cross-sectional view of a gap-self-adjusting viscous damper provided by this utility model;

[0018] Figure 3 A cross-sectional view of the piston body of a gap-self-adjusting viscous damper provided by this utility model;

[0019] Figure 4 A cross-sectional view of the length adjustment component of a gap-self-adjusting viscous damper provided by this utility model.

[0020] Legend:

[0021] 1. Damper cylinder body mechanism; 101. Cylinder barrel; 102. End cap; 103. First mounting head; 2. Piston mechanism; 201. Guide rod; 202. Piston body; 203. Annular groove; 204. Through hole; 205. Sealing ring; 206. Adjusting groove; 3. Length adjustment assembly; 301. Adjusting rod; 302. Threaded groove; 303. Second mounting head; 304. Internal threaded fixing block; 305. Fastening bolt. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution including: a damper cylinder mechanism 1, the damper cylinder mechanism 1 including a cylinder 101, an end cap 102 and a first mounting head 103, a piston mechanism 2 inside the cylinder 101, the piston mechanism 2 including a guide rod 201, a piston body 202, an annular groove 203, a through hole 204, a sealing ring 205 and an adjusting groove 206, and a length adjusting assembly 3 inside the piston mechanism 2, the length adjusting assembly 3 including an adjusting rod 301, a threaded groove 302, a second mounting head 303, an internal thread fixing block 304 and a fastening bolt 305.

[0024] In one embodiment, the inner walls of both ends of the cylinder 101 are movably connected to the outer wall of the end cap 102, and one end of the cylinder 101 is fixedly connected to one side of the first mounting head 103.

[0025] Specifically: it is installed at the installation position via the first mounting head 103 and the second mounting head 303.

[0026] In one embodiment, the inner wall of the cylinder 101 is movably connected to the outer wall of the guide rod 201, and the outer wall of the guide rod 201 is fixedly connected to the inner wall of the piston body 202.

[0027] Specifically: As the flow velocity of the damping medium increases, the pressure also increases. Consequently, the damping medium inside the annular groove 203 compresses the inner side of the sealing ring 205, causing the through hole 204 to extend outward. This reduces the gap between the outer wall of the sealing ring 205 and the inner wall of the cylinder 101, thereby increasing the damping effect.

[0028] In one embodiment, annular grooves 203 are provided on both sides of the piston body 202, and a through hole 204 is provided on one side of the annular grooves 203.

[0029] Specifically, the through hole 204 facilitates the flow of damping medium into the annular groove 203 under high pressure.

[0030] In one embodiment, the inner wall of the annular groove 203 is movably connected to the outer wall of the sealing ring 205, and an adjustment groove 206 is provided inside one end of the guide rod 201.

[0031] Specifically, the adjustment groove 206 ensures the stability of the adjustment rod 301 during movement.

[0032] In one embodiment, the inner wall of the adjusting groove 206 is movably connected to the outer wall of the adjusting rod 301, and multiple sets of threaded grooves 302 are evenly provided on the top of the adjusting rod 301.

[0033] Specifically: By setting multiple sets of threaded grooves 302, the stability after adjusting different lengths is facilitated.

[0034] In one embodiment, one end of the adjusting rod 301 is fixedly connected to one side of the second mounting head 303, and one side of the second mounting head 303 is fixedly connected to one side of the internal thread fixing block 304.

[0035] Specifically: Moving the second mounting head 303 causes the adjusting rod 301 to move inside the adjusting groove 206, thereby adjusting the overall length of the device.

[0036] In one embodiment, the inner wall of the internal threaded fixing block 304 is threadedly connected to the outer wall of the fastening bolt 305, and the outer wall of the fastening bolt 305 is threadedly connected to the inner thread of the threaded groove 302.

[0037] Specifically, the stability after length adjustment is ensured by setting fastening bolt 305 and threaded groove 302.

[0038] Working principle: The cylinder 101 is filled with damping medium. As the guide rod 201 moves under the seal of the end cap 102 and the piston body 202 moves inside the cylinder 101, the damping medium moves through the gap between the sealing ring 205 and the inner wall of the cylinder 101, thus producing a damping effect. When the external vibration is small, the piston body 202 moves slowly within the cylinder 101, and the damping medium enters the annular groove 203 through the through hole 204. Due to the slow movement of the piston body 202, the flow velocity and pressure of the damping medium are low, and the damping medium inside the annular groove 203 does not compress the inner side of the sealing ring 205. When the external vibration is strong, the movement of the piston body 202 within the cylinder 101 becomes more vigorous, and as the flow velocity of the damping medium increases, the pressure... As a result, the damping medium inside the annular groove 203 compresses the inner side of the sealing ring 205, causing the through hole 204 to extend outward, thereby reducing the gap between the outer wall of the sealing ring 205 and the inner wall of the cylinder 101, thus increasing the damping effect. When adjusting the overall length of the device, a tool is used to rotate the fastening bolt 305 to move the fastening bolt 305 away from the inside of the threaded groove 302, and the second mounting head 303 is moved to move the adjusting rod 301 inside the adjusting groove 206, thereby adjusting the overall length of the device. After the length is appropriate, the fastening bolt 305 is rotated to enter the inside of the threaded groove 302, thereby locking the adjusted adjusting rod 301, which is then installed in the position to be installed through the first mounting head 103 and the second mounting head 303.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A gap-self-adjusting viscous damper, characterized in that, include: The damper cylinder mechanism (1) includes a cylinder (101), an end cap (102), and a first mounting head (103). The cylinder (101) is equipped with a piston mechanism (2). The piston mechanism (2) includes a guide rod (201), a piston body (202), an annular groove (203), a through hole (204), a sealing ring (205), and an adjusting groove (206). The piston mechanism (2) is equipped with a length adjusting assembly (3). The length adjusting assembly (3) includes an adjusting rod (301), a threaded groove (302), a second mounting head (303), an internal thread fixing block (304), and a fastening bolt (305).

2. The self-adjusting viscous damper according to claim 1, characterized in that: The inner walls of both ends of the cylinder (101) are movably connected to the outer wall of the end cap (102), and one end of the cylinder (101) is fixedly connected to one side of the first mounting head (103).

3. The self-adjusting viscous damper according to claim 1, characterized in that: The inner wall of the cylinder (101) is movably connected to the outer wall of the guide rod (201), and the outer wall of the guide rod (201) is fixedly connected to the inner wall of the piston body (202).

4. A gap-self-adjusting viscous damper according to claim 3, characterized in that: The piston body (202) has annular grooves (203) on both sides, and a through hole (204) is provided on one side of the annular groove (203).

5. A gap-self-adjusting viscous damper according to claim 4, characterized in that: The inner wall of the annular groove (203) is movably connected to the outer wall of the sealing ring (205), and an adjustment groove (206) is provided inside one end of the guide rod (201).

6. A gap-self-adjusting viscous damper according to claim 1, characterized in that: The inner wall of the adjusting groove (206) is movably connected to the outer wall of the adjusting rod (301), and multiple sets of threaded grooves (302) are evenly opened on the top of the adjusting rod (301).

7. A gap-self-adjusting viscous damper according to claim 6, characterized in that: One end of the adjusting rod (301) is fixedly connected to one side of the second mounting head (303), and one side of the second mounting head (303) is fixedly connected to one side of the internal thread fixing block (304).

8. A gap-self-adjusting viscous damper according to claim 7, characterized in that: The inner wall of the internal threaded fixing block (304) is threadedly connected to the outer wall of the fastening bolt (305), and the outer wall of the fastening bolt (305) is threadedly connected to the inner thread of the threaded groove (302).

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