A stroke-adjustable air damper

Abstract

The utility model provides a kind of adjustable stroke air damper, the air damper includes: lower mounting seat, the lower mounting seat is fixedly connected with fixed cylinder, the fixed cylinder bottom end surface is fixedly sleeved with base;Shock column, the shock column is slidably connected in fixed cylinder side surface, the shock column top end is equipped with upper mounting seat;Shock absorbing spring, the shock absorbing spring is sleeved in fixed cylinder surface;Protective assembly, the protective assembly is sleeved in shock absorbing spring surface;Stroke control mechanism, the stroke control mechanism is installed in fixed cylinder bottom end.Protective cylinder moves with upper mounting seat, insulates outside hard thing and collides with shock absorbing spring, guarantees the integrity of shock absorbing spring surface, avoids coating drop, reduces the erosion of moisture dust, adjusts the damping of compression stage by gas flow control assembly, so that damper is more stable when bearing impact, controls the damping of rebound stage by adjusting assembly, avoids secondary vibration caused by spring rebound too fast.

Description

Technical Field

[0001] This utility model relates to the field of air shock absorber technology, and is an adjustable stroke air shock absorber. Background Technology

[0002] Pneumatic shock absorbers are devices that utilize the compressibility of gas to achieve shock absorption. By coordinating the control of gas compression and hydraulic damping, air shock absorbers improve shock absorption performance. Although cost and maintenance remain challenges, with technological advancements and material innovations, air shock absorbers are developing towards a smarter and more affordable direction, providing more stable and comfortable support for future travel and industrial production.

[0003] Currently, in the use of air shock absorbers, the rebound of the springs is fixed and cannot be adjusted according to needs. Furthermore, the existing springs are exposed to the outside during use, making them susceptible to damage from external impacts, which can cause corrosion and affect their service life. Utility Model Content

[0004] This invention addresses the technical problems of air shock absorbers where the spring rebound is fixed and cannot be adjusted according to needs, and where existing springs are exposed to the outside during use, making them susceptible to corrosion and affecting their service life. The invention provides an air shock absorber with adjustable stroke.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides an adjustable stroke air damper, the adjustable stroke air damper comprising:

[0007] A lower mounting base is fixedly connected to a fixed cylinder, and a base is fixedly sleeved on the bottom surface of the fixed cylinder.

[0008] A shock-absorbing column is slidably connected to the side surface of a fixed cylinder. An upper mounting seat is installed at the top of the shock-absorbing column, and the end of the shock-absorbing column is fixedly connected to a piston slidably connected to the inner cavity of the fixed cylinder.

[0009] A shock-absorbing spring, which is sleeved on the surface of the fixed cylinder;

[0010] A protective component, which is sleeved on the surface of the shock-absorbing spring, is used for surface coating protection of the shock-absorbing spring.

[0011] A stroke control mechanism is installed at the bottom of the fixed cylinder. The stroke control mechanism is used to control the moving speed of the piston and the rebound speed of the shock-absorbing spring.

[0012] Furthermore, the protective component includes a connecting cylinder, a protective cylinder, and a vent hole. The connecting cylinder is fixedly connected to the top side surface of the base, and the protective cylinder is slidably sleeved on the surface of the connecting cylinder. The protective cylinder is fixedly connected to the surface of the connecting plate, and the connecting plate is fixedly sleeved on the surface of the upper mounting base.

[0013] Furthermore, the number of vent holes is several, and the several vent holes are distributed in a ring on the top side surface of the protective cylinder.

[0014] Furthermore, the stroke control mechanism includes a connecting seat, a gas flow control component, an adjustment component, a reflux chamber, and a connecting chamber. The connecting seat is fixedly connected to the bottom side surface of the fixed cylinder. The connecting seat has an extrusion chamber, a reflux chamber, and a connecting chamber. A gas flow control component is provided on one side of the extrusion chamber, and an adjustment component is installed on the side surface of the reflux chamber.

[0015] Furthermore, the connecting cavity is connected to the inner cavity at the bottom of the fixed cylinder, and the connecting cavity is connected to the extrusion cavity and the return cavity respectively.

[0016] Furthermore, both the extrusion chamber and the reflux chamber are connected to a buffer tank at their ends. A first check valve is installed in the extrusion chamber, and a second check valve is installed in the reflux chamber.

[0017] Furthermore, the gas flow control assembly includes a first adjusting bolt, a first adjusting plug, and a movable column. The first adjusting bolt is rotatably connected to the side surface of the connecting seat, and the movable column is threaded onto the surface of the first adjusting bolt. The end of the movable column is fixedly connected to the first adjusting plug, and the first adjusting plug is slidably connected to the side surface of the extrusion chamber. The first adjusting plug is used to control the size of the gas flow cavity in the extrusion chamber.

[0018] Furthermore, a slider is fixedly connected to the side surface of the movable column, and the slider is slidably connected within the connecting seat.

[0019] Furthermore, the adjustment assembly includes a second adjusting bolt, a second adjusting plug, and an adjusting column. The second adjusting bolt is rotatably connected to the side surface of the connecting seat, and the adjusting column is sleeved on the surface of the second adjusting bolt. The second adjusting plug is fixedly connected to the end of the adjusting column. The second adjusting plug is used to adjust the size of the ventilation cavity in the return cavity.

[0020] Furthermore, a limiting block is fixedly connected to the end side surface of the adjusting column, and the limiting block is slidably connected to the side surface of the connecting seat.

[0021] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0022] The positive and progressive effects of this utility model are as follows:

[0023] The aforementioned adjustable-stroke air shock absorber features a protective cylinder that moves with the upper mounting base, isolating the shock absorber spring from external hard objects, ensuring the integrity of the spring surface, preventing coating peeling, reducing moisture and dust erosion, and balancing the air pressure inside and outside the protective cylinder through the vent hole to prevent sliding and jamming. The damping during the compression stage is adjusted by the gas flow control component, making the shock absorber more stable when subjected to impact. The damping during the rebound stage is controlled by the adjustment component to prevent secondary vibration caused by excessively fast spring rebound. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application.

[0025] Figure 1 This is a schematic diagram of the surface connection structure of the shock-absorbing spring in the air shock absorber of this utility model.

[0026] Figure 2 This is a three-dimensional structural diagram of the air shock absorber of this utility model.

[0027] Figure 3 This is a three-dimensional structural diagram of the other side of the air shock absorber of this utility model.

[0028] Figure 4 This is a side view of the air shock absorber of this utility model.

[0029] Figure 5 This is a schematic diagram of the air shock absorber of this utility model along the BB section.

[0030] Figure 6 This is a schematic diagram of the air shock absorber of this utility model, viewed along section AA.

[0031] Explanation of reference numerals in the attached figures

[0032] 1. Lower mounting base; 2. Fixed cylinder; 3. Shock-absorbing spring; 4. Shock-absorbing column; 5. Connecting seat; 6. Upper mounting base; 7. Nut; 8. Base; 9. Connecting cylinder; 10. Protective cylinder; 1001. Vent hole; 11. Piston; 12. Stroke control mechanism; 1201. Connecting seat; 1202. First adjusting bolt; 1203. Extrusion chamber; 1204. First regulating plug; 1205. First one-way valve; 1206. Moving column; 1207. Second adjusting bolt; 1208. Second regulating plug; 1209. Second one-way valve; 1210. Return chamber; 1211. Connecting chamber; 1212. Adjusting column; 13. Buffer tank. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0036] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0037] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0039] like Figure 1-6 As shown, the adjustable-stroke air damper includes:

[0040] The lower mounting base 1 is fixedly connected to the fixed cylinder 2, and the base 8 is fixedly sleeved on the bottom surface of the fixed cylinder 2;

[0041] The shock absorber 4 is slidably connected to the side surface of the fixed cylinder 2. The top of the shock absorber 4 is equipped with an upper mounting seat 6, and the end of the shock absorber 4 is fixedly connected to the piston 11 slidably connected to the inner cavity of the fixed cylinder 2.

[0042] The shock-absorbing spring 3 is sleeved on the surface of the fixed cylinder 2;

[0043] A protective component is sleeved on the surface of the shock-absorbing spring 3, and the protective component is used for surface coating protection of the shock-absorbing spring 3.

[0044] The stroke control mechanism 12 is installed at the bottom of the fixed cylinder 2. The stroke control mechanism 12 is used to control the moving speed of the piston 11 and the rebound speed of the shock-absorbing spring 3.

[0045] In this embodiment, the protective cylinder 10 moves with the upper mounting base 6, isolating the shock-absorbing spring 3 from collisions with external hard objects, ensuring the integrity of the surface of the shock-absorbing spring 3, preventing the coating from falling off, reducing the erosion of moisture and dust, and the vent 1001 balances the air pressure inside and outside the protective cylinder 10 to prevent sliding and jamming. The damping in the compression stage is adjusted by the gas flow control component, making the shock absorber more stable when subjected to impact. The damping in the rebound stage is controlled by the adjustment component to prevent secondary vibration caused by the spring rebounding too quickly.

[0046] The protective assembly includes a connecting cylinder 9, a protective cylinder 10, and a vent hole 1001. The connecting cylinder 9 is fixedly connected to the top side surface of the base 8. The protective cylinder 10 is slidably sleeved on the surface of the connecting cylinder 9. The protective cylinder 10 is fixedly connected to the surface of the connecting plate 5. The connecting plate 5 is fixedly sleeved on the surface of the upper mounting base 6.

[0047] During use, the protective sleeve 10 moves with the upper mounting base 6, isolating the shock-absorbing spring 3 from collisions with external hard objects, ensuring the integrity of the surface of the shock-absorbing spring 3, preventing the coating from falling off, reducing the erosion of moisture and dust, and the vent 1001 balances the air pressure inside and outside the protective sleeve 10 to prevent sliding and jamming.

[0048] The number of ventilation holes 1001 is several, and the several ventilation holes 1001 are distributed in a ring on the top side surface of the protective cylinder 10.

[0049] The stroke control mechanism 12 includes a connecting seat 1201, a gas flow control component, an adjustment component, a reflux chamber 1210, and a connecting chamber 1211. The connecting seat 1201 is fixedly connected to the bottom side surface of the fixed cylinder 2. The connecting seat 1201 has an extrusion chamber 1203, a reflux chamber 1210, and a connecting chamber 1211. A gas flow control component is provided on one side of the extrusion chamber 1203, and an adjustment component is installed on the side surface of the reflux chamber 1210.

[0050] The connecting cavity 1211 is connected to the inner cavity at the bottom end of the fixed cylinder 2, and the connecting cavity 1211 is connected to the extrusion cavity 1203 and the return cavity 1210 respectively.

[0051] The ends of the extrusion chamber 1203 and the return chamber 1210 are both connected to the buffer tank 13. The buffer tank 13 stores the overflowing gas / liquid, smooths pressure fluctuations, and improves shock absorption stability. A first one-way valve 1205 is installed in the extrusion chamber 1203, and a second one-way valve 1209 is installed on the return chamber 1210. The first one-way valve 1205 (extrusion chamber 1203) ensures that gas can only be discharged outwards; the second one-way valve 1209 (return chamber 1210) restricts the one-way return of gas and maintains the system pressure balance.

[0052] The gas flow control assembly includes a first adjusting bolt 1202, a first regulating plug 1204, and a moving column 1206. The first adjusting bolt 1202 is rotatably connected to the side surface of the connecting seat 1201. The moving column 1206 is threaded onto the surface of the first adjusting bolt 1202. The first regulating plug 1204 is fixedly connected to the end of the moving column 1206. The first regulating plug 1204 is slidably connected to the side surface of the extrusion chamber 1203. The first regulating plug 1204 is used to control the size of the gas flow cavity in the extrusion chamber 1203.

[0053] Rotating the first adjusting bolt 1202 causes the adjusting column 1206 to move, which in turn drives the first regulating plug 1204 to move and adjust, thereby facilitating the control of the orifice size of the extrusion chamber 1203. The damping during the compression stage is adjusted by the gas flow control component, making the shock absorber more stable when subjected to impact.

[0054] A slider is fixedly connected to the side surface of the movable column 1206, and the slider is slidably connected inside the connecting seat 1201.

[0055] The adjustment assembly includes a second adjusting bolt 1207, a second regulating plug 1208, and an adjusting column 1212. The second adjusting bolt 1207 is rotatably connected to the side surface of the connecting seat 1201. The adjusting column 1212 is sleeved on the surface of the second adjusting bolt 1207. The second regulating plug 1208 is fixedly connected to the end of the adjusting column 1212. The second regulating plug 1208 is used to adjust the size of the ventilation cavity in the return cavity 1210.

[0056] Activate the second adjusting bolt 1207, which pushes the adjusting column 1212 to move. The adjusting column 1212 then moves the second regulating plug 1208, facilitating the adjustment of the orifice size of the return chamber 1210. This allows the damping during the rebound stage to be controlled through the adjusting assembly, preventing secondary vibrations caused by excessively rapid rebound of the damping spring.

[0057] A limiting block is fixedly connected to the end side surface of the adjusting column 1212, and the limiting block is slidably connected to the side surface of the connecting seat 1201.

[0058] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0059] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. An adjustable-stroke air damper, characterized in that, The adjustable-stroke air damper includes: The lower mounting base (1) is fixedly connected to the fixed cylinder (2), and the bottom surface of the fixed cylinder (2) is fixedly sleeved with a base (8). The shock absorber (4) is slidably connected to the side surface of the fixed cylinder (2). The top of the shock absorber (4) is equipped with an upper mounting seat (6), and the end of the shock absorber (4) is fixedly connected to the piston (11) slidably connected to the inner cavity of the fixed cylinder (2). A shock-absorbing spring (3) is sleeved on the surface of a fixed cylinder (2); A protective component is sleeved on the surface of the shock-absorbing spring (3) and is used for coating protection of the surface of the shock-absorbing spring (3); The stroke control mechanism (12) is installed at the bottom of the fixed cylinder (2). The stroke control mechanism (12) is used to control the moving speed of the piston (11) and the rebound speed of the shock absorber spring (3).

2. The adjustable-stroke air damper as described in claim 1, characterized in that: The protective assembly includes a connecting cylinder (9), a protective cylinder (10), and a vent (1001). The connecting cylinder (9) is fixedly connected to the top side surface of the base (8). The protective cylinder (10) is slidably sleeved on the surface of the connecting cylinder (9). The protective cylinder (10) is fixedly connected to the surface of the connecting plate (5). The connecting plate (5) is fixedly sleeved on the surface of the upper mounting base (6).

3. The adjustable-stroke air damper as described in claim 2, characterized in that: The number of the vent holes (1001) is several, and the several vent holes (1001) are distributed in a ring on the top side surface of the protective cylinder (10).

4. The adjustable-stroke air damper as described in claim 1, characterized in that: The stroke control mechanism (12) includes a connecting seat (1201), a gas flow control component, an adjustment component, a return chamber (1210), and a connecting chamber (1211). The connecting seat (1201) is fixedly connected to the bottom side surface of the fixed cylinder (2). The connecting seat (1201) has an extrusion chamber (1203), a return chamber (1210), and a connecting chamber (1211). A gas flow control component is provided on one side of the extrusion chamber (1203), and an adjustment component is installed on the side surface of the return chamber (1210).

5. The adjustable-stroke air damper as described in claim 4, characterized in that: The connecting cavity (1211) is connected to the inner cavity at the bottom of the fixed cylinder (2), and the connecting cavity (1211) is connected to the extrusion cavity (1203) and the return cavity (1210) respectively.

6. The adjustable-stroke air damper as described in claim 4, characterized in that: The ends of the extrusion chamber (1203) and the return chamber (1210) are connected to the buffer tank (13). A first check valve (1205) is installed in the extrusion chamber (1203), and a second check valve (1209) is installed on the return chamber (1210).

7. The adjustable-stroke air damper as described in claim 4, characterized in that: The gas flow control assembly includes a first adjusting bolt (1202), a first adjusting plug (1204), and a moving column (1206). The first adjusting bolt (1202) is rotatably connected to the side surface of the connecting seat (1201). The moving column (1206) is threaded onto the surface of the first adjusting bolt (1202). The first adjusting plug (1204) is fixedly connected to the end of the moving column (1206). The first adjusting plug (1204) is slidably connected to the side surface of the extrusion chamber (1203). The first adjusting plug (1204) is used to control the size of the gas flow cavity in the extrusion chamber (1203).

8. The adjustable-stroke air damper as described in claim 7, characterized in that: A slider is fixedly connected to the side surface of the movable column (1206), and the slider is slidably connected inside the connecting seat (1201).

9. The adjustable-stroke air damper as described in claim 4, characterized in that: The adjustment assembly includes a second adjusting bolt (1207), a second regulating plug (1208), and an adjusting column (1212). The second adjusting bolt (1207) is rotatably connected to the side surface of the connecting seat (1201). The adjusting column (1212) is sleeved on the surface of the second adjusting bolt (1207). The second regulating plug (1208) is fixedly connected to the end of the adjusting column (1212). The second regulating plug (1208) is used to adjust the size of the ventilation cavity in the return cavity (1210).

10. The adjustable-stroke air damper as described in claim 9, characterized in that: The adjusting column (1212) has a limit block fixedly connected to its end side surface, and the limit block is slidably connected to the side surface of the connecting seat (1201).

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