Jacking type damping spring mechanism

Abstract

The invention discloses a jacking type damping spring mechanism, which belongs to the technical field of damping mechanisms, and comprises an outer cylinder, a sealing assembly is arranged along the inner circumference of the outer cylinder, and damping grease is arranged in the sealing assembly; a piston assembly is slidably arranged on the inner side wall of the sealing assembly in a penetrating mode. An elastic element is arranged in the piston assembly; a cover plate is arranged at the bottom of the outer cylinder, one end of the elastic element abuts against the top of the piston assembly, and the other end of the elastic element abuts against the inner wall of the cover plate. And the damping grease is mixed with the thickener. According to the mechanism, the elastic element is combined with the damping grease to achieve damping motion, different thickening agents are mixed in the damping grease, the damping performance of the damping grease is greatly improved, the damping effect of the elastic element can be adjusted by changing the viscosity of the damping grease in the working process of the elastic element, high-frequency resonance is eliminated, and the damping effect of the elastic element is improved. And the use requirements of elastic self-recovery of the damping property and the speed requirement for elastic force release are met.

Description

Technical Field

[0001] The present invention belongs to the technical field of damping mechanisms, and specifically relates to a jacking type damping spring mechanism. Background Art

[0002] With the great improvement of modern industrial level, the personalized requirements for elastic elements by various devices are becoming stronger and stronger. Some mechanisms need to utilize the rapid rebound performance of elastic elements, some need to utilize the relatively constant thrust performance of elastic elements, some need to utilize the energy storage function of elastic elements, some need to utilize the shock absorption function of elastic elements, and some need elastic elements to present damped motion in order to complete a certain specific functional requirement.

[0003] In related technologies, in the current use of elastic elements, the wire spring or rubber spring has a relatively high rebound coefficient and is prone to high-frequency resonance phenomena, resulting in cracks or fractures in the spring; while the gas spring or hydraulic spring can achieve damped motion, but the damping force is not adjustable, and it cannot meet the requirements of damped elastic self-return and the use requirements with speed requirements for elastic force release. Moreover, the pressure of the gas and liquid inside is very high, which is easy to cause damage to the spring.

[0004] Therefore, there is an urgent need for a jacking type damping spring mechanism to eliminate the resonance effect during the working process of elastic elements, and the damping force is adjustable, which can meet the requirements of damped elastic self-return and the use requirements with speed requirements for elastic force release. Summary of the Invention

[0005] The purpose of the present invention is to provide a jacking type damping spring mechanism to solve at least one of the problems and defects mentioned in the above background art.

[0006] Specifically, the present invention discloses a jacking type damping spring mechanism, including:

[0007] An outer cylinder, a sealing assembly is arranged along the inner circumference of the outer cylinder, and damping grease is arranged inside the sealing assembly;

[0008] A piston assembly is slidably penetrated through the inner side wall of the sealing assembly;

[0009] An elastic element is arranged inside the piston assembly;

[0010] A cover plate is arranged at the bottom of the outer cylinder, one end of the elastic element abuts against the top of the piston assembly, and the other end of the elastic element abuts against the inner wall of the cover plate;

[0011] The damping grease is mixed with a thickening agent.

[0012] The jacking type damping spring mechanism according to the present invention has at least the following beneficial effects:

[0013] The viscous flow of damping grease is a passive force without elasticity. When there is no relative motion between the two objects connected by damping grease, the damping force at this time is "0". Only when relative motion occurs between the two objects will a damping force be generated until the two objects are relatively stationary. At this time, the objects are in a new static equilibrium and the damping force is "0". When the elastic element is in a stable state, the piston assembly is in an extended state due to the thrust of the elastic element. When the piston assembly undergoes a compression motion due to external pressure, the elastic element slows down significantly in the compression motion due to the viscosity of the damping grease. When the external pressure decreases or is removed, the piston assembly slowly rises under the combined action of the elastic element and the damping grease until the piston assembly is again in an extended state due to the thrust of the elastic element.

[0014] This jacking damping spring mechanism uses an elastic element combined with damping grease to achieve damping motion. By mixing different thickeners in the damping grease, the damping performance of the damping grease can be greatly improved, and the magnitude of the force exerted by the elastic element on the outside will not be changed. Only the changing speed of the force of the elastic element is reduced, enabling the elastic element to adjust the damping effect of the elastic element by changing the viscosity of the damping grease during operation, achieving the elimination of high-frequency resonance, meeting the requirements of elastic self-recovery with damping and the use requirements for the speed of elastic force release; compared with traditional gas springs or hydraulic springs, this damping spring mechanism does not need to bear high pressure of gas or liquid, greatly reducing the processing difficulty and being not easily damaged, and improving the service life; at the same time, this mechanism has a simple structure, low cost, and is easy to maintain.

[0015] As a further solution of the present invention: The sealing assembly includes an upper sealing groove, a damping cavity, a lower sealing groove, and a stroke cavity that are sequentially connected from top to bottom inside the outer cylinder.

[0016] As a further solution of the present invention: An oil filling port is provided on one side of the damping cavity.

[0017] Since the sealing assembly includes an upper sealing groove, a damping cavity, a lower sealing groove, and a stroke cavity that are sequentially connected from top to bottom inside the outer cylinder, and an oil filling port is provided on one side of the damping cavity to pour damping grease or thickener into the damping cavity from the oil filling port; and the height of the stroke cavity is greater than the working height of the piston assembly, which can provide sufficient safety space for the movement of the piston assembly, effectively avoiding the collision between the piston assembly and the wall of the stroke cavity during the movement process, thereby reducing the risk of equipment damage and extending the service life of the mechanism; at the same time, the piston assembly has more adjustable space during the movement process. According to different working requirements, the performance of the mechanism can be changed by adjusting the movement stroke of the piston assembly, realizing more flexible adjustment of the piston assembly, and improving the adaptability and working efficiency of the mechanism.

[0018] As a further solution of the present invention: a plug is provided in the oil filling port.

[0019] Since a plug is provided in the oil filling port, the damping grease or viscosity can be effectively prevented from leaking or volatilizing, and the amount and viscosity of the damping grease or viscosity can be prevented from changing, resulting in unstable damping effect, so that the mechanism cannot achieve the expected shock absorption, buffering or precise control of movement speed effects; at the same time, impurities such as dust and moisture can be prevented from entering the damping cavity, contaminating the damping grease or viscosity and affecting its performance, thereby ensuring the cleanliness of the damping cavity and ensuring the performance of the damping grease or viscosity.

[0020] As a further solution of the present invention: sealing rings are respectively arranged along the inner side walls of the upper sealing groove and the lower sealing groove, and a damping surface is arranged on the outer side wall of the piston assembly, and the damping surface is slidably connected to the inner side wall of the sealing ring.

[0021] Since sealing rings are respectively arranged along the inner walls of the upper sealing groove and the lower sealing groove, a damping surface is arranged on the outer wall of the piston assembly, and the damping surface is slidably connected to the inner wall of the sealing ring, when the piston assembly slides relative to the sealing ring, the sealing ring can effectively prevent the damping grease or viscosity in the damping chamber from leaking into the external environment, and can also prevent external impurities such as dust and moisture from entering the damping chamber, thereby effectively improving the sealing performance of the sealing assembly and ensuring the stability of the use of the damping grease or viscosity.

[0022] As a further solution of the present invention: the surface roughness of the damping surface is Ra1.6μm-Ra12.5μm.

[0023] The surface roughness of the damping surface is Ra1.6μm-Ra12.5μm, which can balance the fluidity and adhesion of the damping grease or viscosity and prevent excessive flow of the damping grease or viscosity. The roughness gives the damping surface a certain microscopic concave-convex structure, which can increase the actual contact area between the damping surface and the sealing ring. During the sealing process, the damping grease or viscosity is filled between these microscopic concave-convex surfaces to form multiple sealing barriers, effectively preventing the leakage of the damping grease or viscosity and improving the reliability of the seal.

[0024] As a further solution of the present invention: a spring guide sleeve is arranged in the piston assembly, and the elastic element is arranged in the spring guide sleeve.

[0025] By arranging a spring guide sleeve in the piston assembly, the elastic element is arranged in the spring guide sleeve, and the spring guide sleeve provides a stable support and guiding structure for the elastic element, which can constrain the deformation direction of the elastic element, make the elastic element expand and contract along a predetermined axial direction, avoid lateral bending or twisting of the elastic element when subjected to force, and ensure the stability of the elastic performance of the elastic element.

[0026] As a further solution of the present invention: the diameter of the spring guide sleeve is greater than the diameter of the elastic element after compression deformation.

[0027] After the elastic element is axially compressed, it will produce a certain deformation in the radial direction. In order to prevent the radial deformation of the elastic element after compression from interfering with the spring guide sleeve, by setting the diameter of the spring guide sleeve to be greater than the diameter of the elastic element after compression deformation, it is convenient for the elastic element to rebound smoothly after compression, avoiding contact or friction between the radial deformation of the elastic element after compression and the inner side wall of the spring guide sleeve, affecting the resilience of the elastic element, and ensuring the elastic performance of the elastic element.

[0028] As a further solution of the present invention: a first positioning platform is provided at the inner top of the piston assembly, a second positioning platform is provided on the inner wall of the cover plate, the top of the elastic element is connected to the first positioning platform, and the bottom of the elastic element is connected to the second positioning platform.

[0029] By providing a first positioning platform at the inner top of the piston assembly, a second positioning platform on the inner wall of the cover plate, connecting the top of the elastic element to the first positioning platform, and connecting the bottom of the elastic element to the second positioning platform, the radial movement of the elastic element within the piston assembly can be effectively restricted, ensuring that the elastic element can expand and contract along the accurate axial direction during each compression and rebound process, avoiding torsion or bending of the elastic element during axial expansion and contraction due to radial offset, improving the consistency of the elastic output of the elastic element, and thus improving the operating stability and accuracy of the piston assembly.

[0030] As a further solution of the present invention: a lifting stop platform is provided at the bottom of the piston assembly, and the lifting stop platform abuts against the inner side wall of the outer cylinder.

[0031] Since a lifting stop platform is provided around the bottom of the piston assembly and the lifting stop platform abuts against the inner side wall of the outer cylinder, the maximum stroke of the piston assembly after compression and rebound can be effectively restricted, ensuring that the piston assembly moves within a reasonable stroke range, preventing the piston assembly from having too large a stroke under the elastic rebound of the elastic element, resulting in situations such as connection loosening and seal failure, and ensuring the stable output of the damping force.

[0032] As a further solution of the present invention: a plurality of tongues are provided at the bottom of the outer cylinder, and a plurality of tongue grooves corresponding to the plurality of tongues are provided on the cover plate.

[0033] By providing a plurality of tongues at the bottom of the outer cylinder and a plurality of tongue grooves corresponding to the plurality of tongues on the cover plate, the cover plate can be effectively connected to the bottom of the outer cylinder, improving the connection stability between the outer cylinder and the cover plate, so that the two ends of the elastic element will not loosen or become loose when subjected to vibration or impact force, ensuring the use stability and reliability of the elastic element. At the same time, the outer cylinder and the cover plate are convenient for installation and disassembly, without complex installation steps, improving the installation efficiency. Brief Description of the Drawings

[0034] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the drawings.

[0035] Figure 1 It is a front view sectional structure schematic diagram of a jacking type damping spring mechanism;

[0036] Figure 2 It is a sectional structure schematic diagram of the outer cylinder of a jacking type damping spring mechanism;

[0037] Figure 3 It is a structure schematic diagram of the piston assembly of a jacking type damping spring mechanism;

[0038] Figure 4 It is a structure schematic diagram of the cover plate of a jacking type damping spring mechanism.

[0039] Reference Signs in the Drawings:

[0040] 1. Outer cylinder; 11. Tongue; 2. Sealing assembly; 21. Upper sealing groove; 22. Damping chamber; 221. Oil filling port; 222. Plug; 23. Lower sealing groove; 24. Stroke chamber; 3. Damping grease; 4. Piston assembly; 41. Damping surface; 42. Spring guide sleeve; 43. First positioning platform; 44. Ascending stop platform; 5. Elastic element; 6. Cover plate; 61. Second positioning platform; 62. Tongue groove; 7. Sealing ring. Detailed Embodiments

[0041] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0042] In addition, in the following detailed description, for the sake of explanation, many specific details are set forth to provide a thorough understanding of the disclosed embodiments. However, it is obvious that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

[0043] As Figure 1An embodiment of the present invention is shown, a jacking damping spring mechanism, comprising: an outer cylinder 1, a sealing assembly 2 is provided along the inner circumference of the outer cylinder 1, and damping grease 3 is arranged inside the sealing assembly 2; a piston assembly 4 is slidably inserted through the inner side wall of the sealing assembly 2; an elastic element 5 is arranged inside the piston assembly 4; a cover plate 6 is arranged at the bottom of the outer cylinder 1, one end of the elastic element 5 abuts against the top of the piston assembly 4, and the other end of the elastic element 5 abuts against the inner wall of the cover plate 6; the damping grease 3 is mixed with a thickener.

[0044] Specifically, the viscous flow of the damping grease 3 is a passive force without rebound elasticity. When there is no relative movement between two objects connected by the damping grease 3, the damping force at this time is "0". Only when relative movement occurs between the two objects will a damping force be generated until the two objects are relatively stationary. At this time, the objects are in a new static equilibrium and the damping force is "0". When the elastic element 5 is in a stable state, the piston assembly 4 is in an extended state due to the thrust of the elastic element 5. When the piston assembly 4 undergoes a compression movement due to an external pressure, the elastic element 5, due to the viscosity of the damping grease 3, significantly slows down the compression movement speed. And when the external pressure decreases or is removed, the piston assembly 4, under the combined action of the elastic element 5 and the damping grease 3, slowly rises until the piston assembly 4 is again in an extended state due to the thrust of the elastic element 5.

[0045] This jacking damping spring mechanism utilizes the elastic element 5 in combination with the damping grease 3 to achieve damping movement. By mixing different thickeners in the damping grease 3, the damping performance of the damping grease 3 can be greatly improved, and the magnitude of the force exerted by the elastic element 5 on the outside will not be changed. Only the changing speed of the force of the elastic element 5 is reduced, enabling the damping effect of the elastic element 5 to be adjusted by changing the viscosity of the damping grease 3 during the working process of the elastic element 5, achieving the elimination of high-frequency resonance, meeting the use requirements of elastic self-recovery with damping and having speed requirements for the release of elastic force; compared with traditional gas springs or hydraulic springs, this damping spring mechanism does not need to bear the high pressure of gas or liquid, greatly reducing the processing difficulty and being not easily damaged, improving the service life; at the same time, this mechanism has a simple structure, low cost, and is easy to maintain.

[0046] The following gives examples of the mixing ratio and viscosity of the thickener, as shown specifically below:

[0047] Silicone oil-based adjustable liquid damping;

[0048] Mixing ratio:

[0049] Dimethyl silicone oil as the basic carrier, accounting for 85%-92%.

[0050] Nano-silica as the thickener, accounting for 3%-8%.

[0051] Phenyl glycidyl ether is used as an antioxidant, with a proportion of 1% - 2%.

[0052] Molybdenum disulfide nanoparticles are used as anti-wear agents, with a proportion of 2% - 3%.

[0053] Graphene microflakes are used as conductive particles, with a proportion of 1% - 2%.

[0054] 85% - 92% of dimethyl silicone oil is used as the base carrier, and the viscosity range of dimethyl silicone oil is 50 cSt - 1000 cSt; 3% - 8% of nano-silica is used as a thickening agent, and the particle size range of nano-silica is 10 nm - 50 nm; 1% - 2% of phenyl glycidyl ether is used as an antioxidant; 2% - 3% of molybdenum disulfide nanoparticles are used as anti-wear agents; 1% - 2% of graphene microflakes are used as conductive particles, and the particle size of graphene microflakes is ≤5 μm.

[0055] Viscosity:

[0056] The viscosity range of dimethyl silicone oil is 50 cSt - 1000 cSt. By adjusting the viscosity of dimethyl silicone oil and the content of nano-silica, the overall viscosity can be regulated; since nano-silica is a thickening agent, increasing its content will increase the viscosity of the system; and the viscosity change rate of the silicone oil-based medium is ≤15% in the range of -40°C - 150°C, and the viscosity is relatively stable in this temperature range; it can be applied to precision instruments.

[0057] It can be seen from this that for the adjustable liquid damping based on silicone oil, with dimethyl silicone oil as the main carrier and various additives, the viscosity can be flexibly regulated by adjusting the component ratio, and the viscosity change rate is low in the temperature range of -40°C - 150°C, avoiding damping failure caused by temperature rise; and the combined action of nanoparticles and conductive materials can inhibit the cavitation effect and resonance peak of the liquid medium; the silica thickening network dynamically reorganizes under the action of shear force, reducing the medium aging and delamination after long-term use; this damping medium is applicable to precision instruments.

[0058] As Figure 2 shown, the sealing assembly 2 includes an upper sealing groove 21, a damping chamber 22, a lower sealing groove 23, and a stroke chamber 24 that are sequentially connected from top to bottom along the inside of the outer cylinder 1; an oil filling port 221 is provided on one side of the damping chamber 22.

[0059] Specifically, since the sealing assembly 2 includes an upper sealing groove 21, a damping chamber 22, a lower sealing groove 23, and a stroke chamber 24 that are sequentially connected from top to bottom inside the outer cylinder 1, an oil filling port 221 is provided on one side of the damping chamber 22 to fill damping grease 3 or viscous agent into the damping chamber 22 from the oil filling port 221; and the height of the stroke chamber 24 is greater than the working height of the piston assembly 4, which can provide sufficient safety space for the movement of the piston assembly 4, effectively avoiding the collision between the piston assembly 4 and the stroke chamber wall during the movement process, thereby reducing the risk of equipment damage and extending the service life of the mechanism; at the same time, the piston assembly 4 has more adjustable space during the movement process. According to different working requirements, the performance of the mechanism can be changed by adjusting the movement stroke of the piston assembly 4, realizing more flexible adjustment of the piston assembly 4, improving the adaptability and working efficiency of the mechanism.

[0060] Further, a plug 222 is provided in the oil filling port 221.

[0061] Specifically, since a plug 222 is provided in the oil filling port 221, it can effectively prevent the leakage or volatilization of the damping grease 3 or viscous agent, avoid the change of the quantity and viscosity of the damping grease 3 or viscous agent, resulting in unstable damping effect, so that the mechanism cannot achieve the expected shock absorption, buffering or precise control of the movement speed effect; at the same time, it can prevent impurities such as dust and moisture from entering the damping chamber 22, polluting the damping grease 3 or viscous agent, affecting its performance, ensuring the cleanliness of the damping chamber 22, and thus guaranteeing the use performance of the damping grease 3 or viscous agent.

[0062] Further, as Figures 1-3 shown, sealing rings 7 are respectively provided around the inner side walls of the upper sealing groove 21 and the lower sealing groove 23, and a damping surface 41 is provided on the outer side wall of the piston assembly 4, and the damping surface 41 is slidably connected to the inner side wall of the sealing ring 7.

[0063] Specifically, since sealing rings 7 are respectively provided around the inner side walls of the upper sealing groove 21 and the lower sealing groove 23, and a damping surface 41 is provided on the outer side wall of the piston assembly 4, and the damping surface 41 is slidably connected to the inner side wall of the sealing ring 7, when the piston assembly 4 slides relative to the sealing ring 7, the sealing ring 7 can effectively prevent the damping grease 3 or viscous agent in the damping chamber 22 from leaking into the external environment, and at the same time can also prevent external dust, moisture and other impurities from entering the interior of the damping chamber 22, effectively improving the sealing performance of the sealing assembly 2 and ensuring the use stability of the damping grease 3 or viscous agent.

[0064] Further, the surface roughness of the damping surface 41 is Ra1.6μm - Ra12.5μm.

[0065] Specifically, the surface roughness of the damping surface 41 is Ra1.6μm-Ra12.5μm, which can balance the fluidity and adhesion of the damping grease 3 or the viscosity and prevent the damping grease 3 or the viscosity from excessive flow. The roughness makes the damping surface 41 have a certain microscopic concave-convex structure, which can increase the actual contact area between the damping surface 41 and the sealing ring 7. During the sealing process, the damping grease 3 or the viscosity is filled between these microscopic concave-convex structures to form multiple sealing barriers, effectively preventing the leakage of the damping grease 3 or the viscosity and improving the reliability of the seal.

[0066] like Figure 3 As shown, a spring guide sleeve 42 is arranged in the piston assembly 4 , and the elastic element 5 is arranged in the spring guide sleeve 42 .

[0067] Specifically, a spring guide sleeve 42 is provided in the piston assembly 4, and the elastic element 5 is provided in the spring guide sleeve 42. The spring guide sleeve 42 provides a stable support and guide structure for the elastic element 5, which can constrain the deformation direction of the elastic element 5, so that the elastic element 5 can be expanded and contracted along a predetermined axial direction, thereby avoiding lateral bending or twisting of the elastic element 5 when subjected to force, thereby ensuring the stability of the elastic performance of the elastic element 5.

[0068] Furthermore, the diameter of the spring guide sleeve 42 is larger than the diameter of the elastic element 5 after compression deformation.

[0069] Specifically, after the elastic element 5 is compressed in the axial direction, it will produce a certain deformation in the radial direction. In order to prevent the radial deformation of the elastic element 5 after compression from interfering with the spring guide sleeve 42, the diameter of the spring guide sleeve 42 is set to be larger than the diameter of the elastic element 5 after compression and deformation, so that the elastic element 5 can rebound smoothly after compression, and avoid the radial deformation of the elastic element 5 after compression from contacting or rubbing with the inner wall of the spring guide sleeve 42, affecting the resilience of the elastic element 5, thereby ensuring the elastic performance of the elastic element 5.

[0070] Furthermore, if Figures 3-4 As shown, a first positioning platform 43 is provided on the inner top of the piston assembly 4 , a second positioning platform 61 is provided on the inner wall of the cover plate 6 , the top of the elastic element 5 is connected to the first positioning platform 43 , and the bottom of the elastic element 5 is connected to the second positioning platform 61 .

[0071] Specifically, by providing a first positioning platform 43 at the inner top of the piston assembly 4 and a second positioning platform 61 on the inner wall of the cover plate 6, connecting the top of the elastic element 5 to the first positioning platform 43 and the bottom of the elastic element 5 to the second positioning platform 61, the radial movement of the elastic element 5 within the piston assembly 4 can be effectively restricted, ensuring that the elastic element 5 can expand and contract along the accurate axial direction during each compression and rebound process, avoiding distortion or bending of the elastic element 5 during axial expansion and contraction due to radial offset, improving the consistency of the elastic output of the elastic element 5, and thus enhancing the operating stability and precision of the piston assembly 4.

[0072] Furthermore, a lifting stop platform 44 is provided around the bottom of the piston assembly 4, and the lifting stop platform 44 abuts against the inner side wall of the outer cylinder 1.

[0073] Specifically, since a lifting stop platform 44 is provided around the bottom of the piston assembly 4 and the lifting stop platform 44 abuts against the inner side wall of the outer cylinder 1, the maximum stroke after compression and rebound of the piston assembly 4 can be effectively restricted, ensuring that the piston assembly 4 moves within a reasonable stroke range, preventing the piston assembly 4 from having an excessive stroke under the elastic rebound of the elastic element 5, resulting in situations such as loose connection and sealing failure, and ensuring the stable output of the damping force.

[0074] According to an embodiment of the present invention, as Figure 2 and Figure 4 shown, a plurality of lugs 11 are provided at the bottom of the outer cylinder 1, and a plurality of lug grooves 62 corresponding to the plurality of lugs 11 are provided on the cover plate 6.

[0075] Specifically, by providing a plurality of lugs 11 at the bottom of the outer cylinder 1 and a plurality of lug grooves 62 corresponding to the plurality of lugs 11 on the cover plate 6, the cover plate 6 can be effectively connected to the bottom of the outer cylinder 1, improving the connection stability between the outer cylinder 1 and the cover plate 6, such that the two ends of the elastic element 5 will not become loose or detached when subjected to vibration or impact force, ensuring the use stability and reliability of the elastic element 5. At the same time, the outer cylinder 1 and the cover plate 6 are convenient for installation and disassembly, without complex installation steps, improving the installation efficiency.

[0076] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A jacking type damping spring mechanism, characterized in that: include: An outer cylinder (1), a sealing component (2) is provided along the inner circumference of the outer cylinder (1), and damping grease (3) is provided in the sealing component (2); The inner wall of the sealing component (2) is slidably provided with a piston component (4); An elastic element (5) is arranged inside the piston assembly (4); A cover plate (6) is provided at the bottom of the outer cylinder (1), one end of the elastic element (5) abuts against the top of the piston assembly (4), and the other end of the elastic element (5) abuts against the inner wall of the cover plate (6); The damping grease (3) is mixed with a viscosity agent.

2. The jacking type damping spring mechanism according to claim 1, characterized in that: The sealing assembly (2) comprises an upper sealing groove (21), a damping chamber (22), a lower sealing groove (23) and a travel chamber (24) which are sequentially connected from top to bottom along the inner side of the outer cylinder (1).

3. The jacking type damping spring mechanism according to claim 2, characterized in that: An oil filling port (221) is provided on one side of the damping chamber (22).

4. The jacking type damping spring mechanism according to claim 3, characterized in that: A plug (222) is provided in the oil filling port (221).

5. The jacking type damping spring mechanism according to claim 4, characterized in that: A sealing ring (7) is provided along the inner wall of the upper sealing groove (21) and the inner wall of the lower sealing groove (23), respectively. A damping surface (41) is provided on the outer wall of the piston assembly (4), and the damping surface (41) is slidably connected to the inner wall of the sealing ring (7).

6. The jacking type damping spring mechanism according to claim 1, characterized in that: A spring guide sleeve (42) is arranged in the piston assembly (4), and the elastic element (5) is arranged in the spring guide sleeve (42).

7. The jacking type damping spring mechanism according to claim 6, characterized in that: The diameter of the spring guide sleeve (42) is greater than the diameter of the elastic element (5) after compression deformation.

8. The lifting damping spring mechanism according to claim 7, characterized in that: A first positioning platform (43) is provided on the inner top of the piston assembly (4), a second positioning platform (61) is provided on the inner wall of the cover plate (6), the top of the elastic element (5) is connected to the first positioning platform (43), and the bottom of the elastic element (5) is connected to the second positioning platform (61).

9. The lifting damping spring mechanism according to claim 8, characterized in that: A lifting stop platform (44) is provided around the bottom of the piston assembly (4), and the lifting stop platform (44) abuts against the inner wall of the outer cylinder (1).

10. The jacking type damping spring mechanism according to any one of claims 1 to 9, characterized in that: The bottom of the outer cylinder (1) is provided with a plurality of latching tongues (11), and the cover plate (6) is provided with a plurality of latching tongue grooves (62) corresponding to the plurality of latching tongues (11).

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