A bidirectional damping adjustable hydraulic damping cylinder with self-resetting function

Abstract

The application discloses a bidirectional damping adjustable hydraulic damping cylinder with self-resetting function, which comprises a cylinder barrel, a gas cavity and an oil cavity arranged in the cylinder barrel, an adjusting mechanism arranged on the cylinder barrel and used for adjusting the damping cylinder, self-resetting and bidirectional locking or unidirectional locking, a pressure storage mechanism arranged on the cylinder barrel and used for storing gas pressure in the gas cavity of the cylinder barrel, and a guiding mechanism arranged on the cylinder barrel, wherein the damping cylinder is formed by integrating various valves and a piston type pressure accumulator to realize the bidirectional damping adjustable requirement of the damping cylinder and has the self-resetting function, and the damping cylinder can be locked at an arbitrary position in a unidirectional mode or an arbitrary position in a bidirectional mode to present unidirectional or bidirectional rigid characteristics, the self-resetting function of the cylinder is realized through the area ratio relationship of the two cavities, the applicability is wider, and the application space is larger.

Description

Technical Field

[0001] This invention belongs to the field of damping cylinder technology, specifically a bidirectional damping adjustable hydraulic damping cylinder with self-resetting function. Background Technology

[0002] Traditional hydraulic damping cylinders generally employ a unidirectional damping design, which cannot achieve bidirectional damping requirements. The throttling design used is based on the commonly used and maximum damping forces, and the damping force cannot be adjusted arbitrarily. The cylinder body cannot achieve a self-locking function at any position. The bidirectional damping adjustable hydraulic damping cylinder with self-resetting function integrates various valves and piston accumulators to form a unique hydraulic circuit principle, achieving the bidirectional damping adjustable requirements of the damping cylinder, with a self-resetting function, and can achieve unidirectional or bidirectional lock-up at any position, exhibiting unidirectional or bidirectional rigidity characteristics. The self-resetting design of the cylinder is achieved through the area ratio of the two chambers.

[0003] As various working conditions requiring damping differ, the demand for bidirectional adjustable hydraulic damping cylinders with self-resetting function is increasing. When in use, they can meet the requirements of different damping in both directions, and when not in use, they can provide rigid support in one or both directions. Summary of the Invention

[0004] The purpose of this invention is to provide a bidirectional adjustable damping hydraulic damping cylinder with self-resetting function, which can realize the bidirectional damping adjustment requirements of the damping cylinder, and can lock at any position in one direction or at any position in both directions to exhibit unidirectional or bidirectional rigidity characteristics.

[0005] The technical solution adopted in this invention is as follows: a bidirectional damping adjustable hydraulic damping cylinder with self-resetting function, comprising: a cylinder barrel, wherein an air chamber and an oil chamber are provided inside the cylinder barrel;

[0006] An adjustment mechanism, mounted on the cylinder, is used for adjusting the damping cylinder, self-resetting, and bidirectional or unidirectional locking; and

[0007] A pressure accumulator mechanism is disposed on the cylinder and is used to store air pressure inside the air chamber of the cylinder.

[0008] A guiding mechanism is mounted on the cylinder.

[0009] The adjustment mechanism includes:

[0010] The piston rod assembly is located inside the oil chamber of the cylinder and is used to divide the oil chamber of the cylinder into two chambers, chamber A and chamber B.

[0011] There are two oil reservoirs, each of which is mounted on the cylinder.

[0012] An adjustment component, which is disposed on the cylinder, is used to control the flow of oil between chamber A and chamber B.

[0013] The piston rod assembly includes:

[0014] A piston rod is movably embedded inside the oil chamber of the cylinder. One end of the piston rod is fixedly connected to a piston plate, which divides the oil chamber into chamber A and chamber B.

[0015] The oil storage tank is connected to the B chamber and the air chamber in the cylinder oil chamber respectively;

[0016] The regulating component includes two adjustable flow valves, each of which is fixedly connected to a corresponding oil reservoir, and the flow directions of the two adjustable flow valves are opposite.

[0017] Two check valves, each of which is connected to the outer wall of the cylinder near the oil chamber, and the flow directions of the two check valves are opposite;

[0018] Two connecting pipes, each of which is connected between the corresponding oil reservoir and the one-way valve.

[0019] The pressure storage mechanism includes:

[0020] A floating piston assembly is located within the air chamber of the cylinder.

[0021] The rear earring assembly is mounted on the cylinder.

[0022] An inflatable valve is connected to the rear earring assembly.

[0023] The floating piston assembly includes a floating piston block, which is movably embedded inside the air chamber of the cylinder.

[0024] The rear earring assembly includes a sealing plug and a rear earring. The sealing plug is fixedly embedded in the air chamber opening of the cylinder, and the rear earring is fixedly connected to the outer surface of one side of the sealing plug.

[0025] The inflatable valve is connected to the outer surface of one side of the sealing plug.

[0026] The guiding mechanism includes a guide sleeve, which is fixedly embedded in the oil chamber opening of the cylinder and sleeved on the piston rod.

[0027] The guide sleeve has a fixing groove on its outer surface, and a sealing ring is fixedly embedded inside the fixing groove.

[0028] The piston rod has a mounting groove on one side of its outer surface, and a front ear ring is threaded into the mounting groove.

[0029] The sealing plug has multiple positioning notches on one side of its outer surface, and each positioning notch has a positioning hole on one side of its outer surface.

[0030] In this cylinder, the inner diameter of the oil chamber is larger than the inner diameter of the air chamber.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] (1) In this invention, compared with the traditional hydraulic damping cylinder principle, the principle of this invention realizes the bidirectional damping adjustable requirement of the damping cylinder, and has a self-resetting function. It can also achieve unidirectional or bidirectional arbitrary position locking, presenting unidirectional or bidirectional rigidity characteristics. Compared with the traditional hydraulic damping cylinder principle, it has increased functionality, wider applicability, and greater application space.

[0033] (2) In this invention, the A and B chambers inside the cylinder oil chamber are respectively connected in series with two adjustable flow valves and two check valves, and the flow directions of the two adjustable flow valves and the two check valves are opposite, thereby realizing the damping of the damping cylinder is adjustable. When the piston rod inside the cylinder is compressed, the piston plate moves towards the B chamber. At this time, one of the check valves is closed, so that the oil in the B chamber flows to the A chamber through the other check valve and the adjustable flow valve. The damping force and compression speed at this time can be easily adjusted through this adjustable flow valve. When the piston rod is stretched, the piston plate moves towards the A chamber. Similarly, the damping force and stretching speed at this time can be easily adjusted through the corresponding adjustable flow valve.

[0034] (3) In this invention, nitrogen gas is injected into the gas chamber of the cylinder through the inflation valve, causing the floating piston block to move to the left side of the gas chamber. When the piston rod is under pressure, the oil in the B chamber flows into the A chamber through the corresponding adjustable flow valve and check valve. At the same time, some oil flows into the gas chamber through the oil tank, pushing the floating piston block to move. When the external force is removed, the gas chamber generates pressure, which pushes the oil back into the oil chamber, thereby driving the piston rod to reset and realizing the automatic reset function of the damping cylinder.

[0035] (4) In this invention, by closing both check valves and the adjustable flow valve, the oil inside chambers A and B can be prevented from flowing, making the damping cylinder rigid and achieving bidirectional locking. By opening the two check valves and closing the two adjustable flow valves, the piston rod can be locked in one direction when it is under tension and under pressure. Attached Figure Description

[0036] Figure 1 This is a perspective view of the present invention;

[0037] Figure 2 This is a cross-sectional view of the present invention;

[0038] Figure 3 For the present invention Figure 2Enlarged view of point A in the middle;

[0039] Figure 4 This is a front view of the present invention;

[0040] Figure 5 This is a top view of the present invention;

[0041] Figure 6 This is a rear view of the present invention.

[0042] The markings in the diagram are: 1. Cylinder; 2. Adjusting mechanism; 201. Oil reservoir; 202. Piston rod; 203. Piston plate; 204. Adjustable flow valve; 205. Check valve; 206. Connecting pipe; 207. Front lug; 208. Chamber A; 209. Chamber B; 3. Accumulation mechanism; 301. Inflation valve; 302. Floating piston block; 303. Sealing plug; 304. Rear lug; 4. Guide mechanism; 401. Guide sleeve; 402. Sealing ring; 5. Positioning notch. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0044] Example

[0045] Reference Figures 1-6A bidirectional damping adjustable hydraulic damping cylinder with self-resetting function includes: a cylinder barrel 1, with an air chamber and an oil chamber inside; an adjustment mechanism 2, mounted on the cylinder barrel 1, used for adjusting, self-resetting, and bidirectional or unidirectional locking of the damping cylinder; the adjustment mechanism 2 includes: a piston rod assembly, located inside the oil chamber of the cylinder barrel 1, used to divide the oil chamber of the cylinder barrel 1 into two chambers, A chamber 208 and B chamber 209; two oil reservoirs 201, each mounted on the cylinder barrel 1; an adjustment component, mounted on the cylinder barrel 1, used to control the flow of oil between chambers A 208 and B 209; and a piston rod assembly including a piston rod 202, which is movably embedded inside the oil chamber of the cylinder barrel 1. One end of cylinder 1 is fixedly connected to a piston plate 203, which divides the oil chamber into chamber A 208 and chamber B 209. The oil reservoir 201 is connected to chamber B 209 and the air chamber in cylinder 1. The regulating assembly includes: two adjustable flow valves 204, each fixedly connected to a corresponding oil reservoir 201 with opposite flow directions; two check valves 205, each connected to the outer wall of cylinder 1 near the oil chamber with opposite flow directions; two connecting pipes 206, each connecting to the corresponding oil reservoir 201 and the check valve 205; and a pressure accumulator 3, mounted on cylinder 1, used to regulate the air pressure in cylinder 1. The internal air pressure storage mechanism 3 includes: a floating piston assembly disposed within the air chamber of cylinder 1; a rear end ring assembly disposed on cylinder 1; and an inflation valve 301 connected to the rear end ring assembly. The floating piston assembly includes a floating piston block 302 movably embedded within the air chamber of cylinder 1. The rear end ring assembly includes a sealing plug 303 and a rear end ring 304. The sealing plug 303 is fixedly embedded at the air chamber opening of cylinder 1, and the rear end ring 304 is fixedly connected to one side of the outer surface of the sealing plug 303. The inflation valve 301 is connected to one side of the outer surface of the sealing plug 303. A mounting groove is formed on one side of the outer surface of piston rod 202, and a front end ring 207 is threadedly connected inside the mounting groove. Multiple positioning notches 5 are provided on the surface, and each positioning notch 5 has a positioning hole on one side of its outer surface. The inner diameter of the oil chamber in cylinder 1 is larger than the inner diameter of the air chamber. Inside the oil chamber of cylinder 1, chambers A 208 and B 209 are respectively connected in series with two adjustable flow valves 204 and two check valves 205, and the flow directions of the two adjustable flow valves 204 and the two check valves 205 are opposite, thereby realizing the adjustable damping of the damping cylinder. When the piston rod 202 inside cylinder 1 is compressed, the piston plate 203 moves towards chamber B 209. At this time, one of the check valves 205 is closed, so that the oil in chamber B 209 flows to chamber A 208 through the other check valve 205 and the adjustable flow valve 204. The adjustable flow valve 204 facilitates the adjustment of the damping force and compression speed at this time.When the piston rod 202 is under tension, the piston plate 203 moves towards chamber A 208. Similarly, the damping force and tension speed can be easily adjusted at this time through the corresponding adjustable flow valve 204. Nitrogen gas is injected into the gas chamber of cylinder 1 through the inflation valve 301, causing the floating piston block 302 to move to the left side of the gas chamber. When the piston rod 202 is under pressure, the oil in chamber B 209 flows into chamber A 208 through the corresponding adjustable flow valve 204 and check valve 205. At the same time, some oil flows into the gas chamber through the oil reservoir 201, pushing the floating piston block 302. When the external force is removed, pressure is generated in the air chamber, which pushes the oil back into the oil chamber, thereby resetting the piston rod 202. By closing both one-way valves 205 and the adjustable flow valve 204, the oil in chambers A 208 and B 209 cannot flow, making the damping cylinder rigid. By opening both one-way valves 205 and closing both adjustable flow valves 204, one-way locking can be achieved when the piston rod 202 is under tension and compression, improving the applicability of the damping cylinder.

[0046] Reference Figures 1-6 The guide mechanism 4 is mounted on the cylinder 1 and includes a guide sleeve 401. The guide sleeve 401 is fixedly embedded in the oil chamber opening of the cylinder 1 and is fitted onto the piston rod 202. A fixing groove is provided on the outer surface of the guide sleeve 401, and a sealing ring 402 is fixedly embedded inside the fixing groove. The guide sleeve 401 facilitates the improvement of the movement stability of the piston rod 202. At the same time, the sealing ring 402 on the outer wall of the guide sleeve 401 improves the sealing performance of the guide sleeve 401 and improves the safety of the damping cylinder.

[0047] The following is a detailed description of a bidirectional damping adjustable hydraulic damping cylinder with self-resetting function provided by an embodiment of the present invention. Its usage includes: Chamber A 208 and Chamber B 209 inside the cylinder 1 are respectively connected in series with two adjustable flow valves 204 and two check valves 205, and the flow directions of the two adjustable flow valves 204 and the two check valves 205 are opposite, thereby achieving adjustable damping of the damping cylinder. When the piston rod 202 inside the cylinder 1 is compressed, the piston plate 203 moves towards Chamber B 209. At this time, one of the check valves 205 is closed, allowing the oil in Chamber B 209 to flow to Chamber A 208 through the other check valve 205 and the adjustable flow valve 204. This adjustable flow valve 204 facilitates the adjustment of the damping force and compression speed at this time. When the piston rod 202 is stretched, the piston plate 203 moves towards Chamber A 208. Similarly, the corresponding adjustable flow valve 204 facilitates the adjustment of the damping force and stretching speed at this time, thus achieving adjustable damping of the cylinder. The adjustment function injects nitrogen into the gas chamber of cylinder 1 through the inflation valve 301, causing the floating piston block 302 to move to the left side of the gas chamber. When the piston rod 202 is compressed, the oil in chamber B 209 flows into chamber A 208 through the corresponding adjustable flow valve 204 and check valve 205. At the same time, some oil flows into the gas chamber through the oil reservoir 201, pushing the floating piston block 302 to move. When the external force is removed, the gas chamber generates pressure, which pushes the oil back into the oil chamber, thereby carrying... The piston rod 202 is reset to realize the automatic reset function of the damping cylinder. By closing both check valves 205 and the adjustable flow valve 204, the oil inside chambers A 208 and B 209 cannot flow, making the damping cylinder rigid and achieving bidirectional locking. By opening both check valves 205 and closing both adjustable flow valves 204, the piston rod 202 can be locked in one direction when it is under tension and under pressure.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bidirectional damping adjustable hydraulic damping cylinder with self-resetting function, characterized in that, include: Cylinder (1), the cylinder (1) is provided with an air chamber and an oil chamber; adjustment mechanism (2), the adjustment mechanism (2) is provided on the cylinder (1), which is used to adjust the damping cylinder, self-reset and bidirectional or unidirectional locking; accumulator mechanism (3), the accumulator mechanism (3) is provided on the cylinder (1), which is used to store air pressure inside the air chamber of the cylinder (1); The guide mechanism (4) is disposed on the cylinder (1). The adjustment mechanism (2) includes: a piston rod assembly disposed inside the oil chamber of the cylinder (1), which is used to divide the oil chamber of the cylinder (1) into two chambers, A chamber (208) and B chamber (209); two oil tanks (201), each of which is disposed on the cylinder (1); and an adjustment assembly disposed on the cylinder (1), which is used to control the flow of oil between chamber A (208) and chamber B (209). The piston rod assembly includes a piston rod (202), which is movably embedded inside the oil chamber of the cylinder (1). One end of the piston rod (202) is fixedly connected to a piston plate (203), which divides the oil chamber into chamber A (208) and chamber B (209). The oil tank (201) The regulating assembly includes: two adjustable flow valves (204), each of which is fixedly connected to the corresponding oil reservoir (201), and the flow directions of the two adjustable flow valves (204) are opposite; two one-way valves (205), each of which is connected to the outer wall of the cylinder (1) near the oil reservoir, and the flow directions of the two one-way valves (205) are opposite; two connecting pipes (206), each of which is connected to the corresponding oil reservoir (201) and the one-way valve (205), and the accumulator mechanism (3) includes: a floating piston assembly, which is located in the air reservoir of the cylinder (1); a rear end ear ring assembly, which is located on the cylinder (1); and an inflation valve (301), which is connected to the rear end ear ring assembly.

2. The bidirectional damping adjustable hydraulic damping cylinder with self-resetting function as described in claim 1, characterized in that: The floating piston assembly includes a floating piston block (302), which is movably embedded inside the air chamber of the cylinder (1); the rear ear ring assembly includes a sealing plug (303) and a rear ear ring (304), the sealing plug (303) is fixedly embedded in the air chamber opening of the cylinder (1), and the rear ear ring (304) is fixedly connected to the outer surface of one side of the sealing plug (303); the inflation valve (301) is connected to the outer surface of one side of the sealing plug (303).

3. The bidirectional damping adjustable hydraulic damping cylinder with self-resetting function as described in claim 1, characterized in that: The guiding mechanism (4) includes a guide sleeve (401), which is fixedly embedded in the oil chamber opening of the cylinder (1) and sleeved on the piston rod (202).

4. A bidirectional damping adjustable hydraulic damping cylinder with self-resetting as described in claim 3, characterized in that: The guide sleeve (401) has a fixing groove on its outer surface, and a sealing ring (402) is fixedly embedded inside the fixing groove.

5. A bidirectional damping adjustable hydraulic damping cylinder with self-resetting as described in claim 4, characterized in that: The piston rod (202) has an installation groove on one side of its outer surface, and a front ear ring (207) is threaded into the installation groove.

6. A bidirectional damping adjustable hydraulic damping cylinder with self-resetting as described in claim 2, characterized in that: The sealing plug (303) has multiple positioning notches (5) on one side of its outer surface, and each positioning notch (5) has a positioning hole on one side of its outer surface.

7. A bidirectional damping adjustable hydraulic damping cylinder with self-resetting as described in claim 1, characterized in that: The inner diameter of the oil chamber in the cylinder (1) is larger than the inner diameter of the air chamber.

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