Gas spring protection mechanism
By designing a gas spring protection mechanism, limiting the movement of the piston rod by using limit and rotation mechanisms, the problem of existing gas springs being easily damaged when the load force is too high is solved, achieving better seal protection and extended service life.
Patent Information
- Application Number
- CN202421412900.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing gas spring lacks a protective mechanism when used, which causes the sealing structure between the piston rod and the cylinder to be easily damaged when the load force is too high, which in turn leads to gas leakage of the gas spring and deformation of the piston rod, and cannot be used normally.
A gas spring protection mechanism is designed, including protective component one and protective component two. Through limiting springs, limiting rods, rotating rods and other structures, the excessive movement and stretching of the piston rod are restricted to avoid damage to the cylinder block and leakage of the gas spring. gas.
It effectively avoids excessive movement and stretching of the piston rod, protects the sealing structure of the gas spring, extends its service life, simplifies the structural design, and improves the convenience of operation.
Smart Images
Figure CN222513683U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas springs, in particular to a gas spring protection mechanism. Background Art
[0002] A spring is an industrial accessory that can perform functions such as support, buffering, braking, height adjustment and angle adjustment. It consists of the following parts: a pressure cylinder, a piston rod, a piston, a sealing guide sleeve, a filler (an inert gas or an oil-gas mixture), an in-cylinder control element and an out-of-cylinder control element (referring to a controllable gas spring) and a joint. The principle is to fill an inert gas or an oil-gas mixture into a closed pressure cylinder so that the pressure in the cavity is several times or dozens of times higher than the atmospheric pressure, and to use the pressure difference generated by the cross-sectional area of the piston rod being smaller than the cross-sectional area of the piston to achieve the movement of the piston rod. Due to the fundamental difference in principle, gas springs have significant advantages over ordinary springs: relatively slow speed, small change in dynamic force (generally within 1:1.2), and easy control. When the gas spring is in use,
[0003] However, current gas springs are often not equipped with protective mechanisms when in use. Instead, they are protected by seals to prevent air leakage. However, when the load force on the gas spring is too large, the sealing structure between the piston rod and the cylinder body is often damaged, which leads to air leakage in the gas spring, which is not conducive to the use of the gas spring. At the same time, the load force is too large, which makes the piston rod deformed and unusable. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a gas spring protection mechanism to solve the problem that the current gas springs are often not provided with a protection mechanism when in use, and their protection is to use a seal to prevent air leakage. However, when the load force on the gas spring is too large, the sealing structure between the piston rod and the cylinder body is often damaged, which leads to air leakage of the gas spring, which is not conducive to the use of the gas spring. At the same time, the load force is too large, which makes the piston rod deformed and unusable. Technical problem.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A gas spring protection mechanism comprises: a cylinder body, a piston rod is arranged inside the cylinder body, a protection component 1 is arranged on the top of the cylinder body, a protection component 2 is arranged inside the cylinder body, the protection component 1 comprises a connecting seat 1, a connecting seat 2, a movable shaft, a rotating rod 1, a rotating rod 2, a limiting sleeve, a limiting spring, a top plate, a threaded sleeve and a limiting rod, the top plate is fixedly mounted on the top of the threaded sleeve, the threaded sleeve is movably sleeved on the outer wall of the cylinder body, a mounting plate is fixedly mounted on the top of the piston rod, the connecting seat 1 is fixedly mounted Installed on the bottom of the mounting plate, the connecting seat 2 is fixedly mounted on the top of the top plate, the top end of the rotating rod 2 is movably sleeved with the connecting seat 1, the bottom end of the rotating rod 1 is movably sleeved with the connecting seat 2, the movable shaft movably penetrates and is inserted into the top end of the rotating rod 1 and the bottom end of the rotating rod 2, the limiting sleeve is fixedly mounted on the bottom of the mounting plate, the limiting rod is fixedly mounted on the top of the top plate, the limiting sleeve is movably sleeved on the top of the limiting rod, the limiting spring is arranged inside the limiting sleeve, and the bottom end of the limiting spring is clamped with the limiting rod.
[0007] Furthermore, a second lifting ring is fixedly installed on the bottom of the cylinder body, and a first lifting ring is fixedly installed on the top of the mounting plate.
[0008] Furthermore, a sealing plug is fixedly mounted on the top inner wall of the cylinder body, and the sealing plug is sleeved with the piston rod.
[0009] Furthermore, a sealing ring is arranged outside the bottom end of the piston rod and is slidably connected to the inner wall of the cylinder body.
[0010] Furthermore, the second protective component includes a bottom block, a vertical rod, a clamping spring, a limiting nut, a protective plate, a support plate, a sealing ring, a mounting sleeve, a spring shock absorber, a mounting spring and a mounting rod. The bottom block is fixedly mounted on the bottom of the piston rod, the vertical rod is fixedly mounted on the bottom of the bottom block, the protective plate is movably sleeved on the outside of the vertical rod, the clamping spring is movably sleeved on the outside of the vertical rod, and the bottom end of the clamping spring is clamped with the limiting nut, the limiting nut is movably sleeved on the outside of the vertical rod, and the bottom end of the limiting nut is clamped with the top of the protective plate, and a through hole is opened inside the protective plate.
[0011] Furthermore, the support plate is fixedly mounted on the outside of the protective plate, a sealing ring is provided on the outside of the protective plate for sealing between the protective plate and the inside of the cylinder body, a groove is opened inside the cylinder body, and the spring shock absorber is fixedly mounted at the bottom of the groove.
[0012] Furthermore, the top of the spring shock-absorbing damper is fixedly connected to the mounting rod, the mounting sleeve is fixedly mounted on the bottom of the support plate, a mounting spring is arranged inside the mounting sleeve, the top end of the mounting rod is movably inserted into the inside of the mounting sleeve, and the bottom end of the mounting spring is clamped with the top end of the mounting rod.
[0013] Beneficial effects of the utility model:
[0014] By providing a protection component 1, when in use, when the piston rod is subjected to a pressure load, the piston rod moves to a suitable position, and then the limit spring contracts, and the limit rod and the limit sleeve are plugged into a suitable position, thereby avoiding excessive movement of the piston rod, avoiding excessive plugging of the piston rod to cause damage to the cylinder body or directly penetrate the cylinder body, which is beneficial to better protect the gas spring. At the same time, when the piston rod is stretched to a suitable position, the rotating rod 1 and the rotating rod 2 rotate, thereby avoiding excessive stretching of the piston rod, thereby avoiding separation between the piston rod and the cylinder body, which is convenient for better protection of the gas spring, and is beneficial to extending its service life. The structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the gas spring protection mechanism;
[0017] Figure 2 This is a schematic diagram of the internal structure of the cylinder body of the gas spring protection mechanism embodiment;
[0018] Figure 3 It is a cross-sectional schematic diagram of an embodiment of the gas spring protection mechanism;
[0019] Figure 4 It is a front view schematic diagram of an embodiment of the gas spring protection mechanism.
[0020] Explanation of the markings in the figure: 1. Cylinder body; 2. Piston rod; 3. Top plate; 4. Threaded sleeve; 5. Limit rod; 6. Rotating rod one; 7. Rotating rod two; 8. Mounting plate; 9. Limit sleeve; 10. Limit spring; 11. Lifting ring one; 12. Movable shaft; 13. Connecting seat one; 14. Connecting seat two; 16. Sealing plug; 17. Bottom block; 18. Vertical rod; 19. Snap-in spring; 20. Limit nut; 21. Sealing ring; 22. Support plate; 23. Mounting sleeve; 24. Lifting ring two; 25. Spring shock absorber damper; 26. Mounting spring; 27. Mounting rod. DETAILED DESCRIPTION
[0021] The following will be combined with the attached embodiment of the utility model Figure 1-4, the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.
[0023] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.
[0024] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0025] See also Figure 1-4 As shown, a gas spring protection mechanism comprises: a cylinder body 1, a piston rod 2 is arranged inside the cylinder body 1, a protection component 1 is arranged on the top of the cylinder body 1, a protection component 2 is arranged inside the cylinder body 1, the protection component 1 comprises a connecting seat 13, a connecting seat 2 14, a movable shaft 12, a rotating rod 1 6, a rotating rod 2 7, a limiting sleeve 9, a limiting spring 10, a top plate 3, a threaded sleeve 4 and a limiting rod 5, the top plate 3 is fixedly mounted on the top of the threaded sleeve 4, the threaded sleeve 4 is movably sleeved on the outer wall of the cylinder body 1, a mounting plate 8 is fixedly mounted on the top of the piston rod 2, the connecting seat 13 is fixed It is fixedly installed at the bottom of the mounting plate 8, the connecting seat 2 14 is fixedly installed at the top of the top plate 3, the top of the rotating rod 2 7 is movably sleeved with the connecting seat 13, the bottom end of the rotating rod 1 6 is movably sleeved with the connecting seat 2 14, the movable shaft 12 is movably inserted into the top end of the rotating rod 1 6 and the bottom end of the rotating rod 2 7, the limiting sleeve 9 is fixedly installed at the bottom of the mounting plate 8, the limiting rod 5 is fixedly installed at the top of the top plate 3, the limiting sleeve 9 is movably sleeved on the top of the limiting rod 5, the limiting spring 10 is arranged inside the limiting sleeve 9, and the bottom end of the limiting spring 10 is clamped with the limiting rod 5.
[0026] Specifically, by providing a protection component 1, during use, when the piston rod 2 is subjected to a pressure load, the piston rod 2 moves to a suitable position, and then the limit spring 10 contracts, and the limit rod 5 and the limit sleeve 9 are plugged into a suitable position, thereby avoiding excessive movement of the piston rod 2, and avoiding excessive plugging of the piston rod 2 to cause damage to the cylinder body 1 or directly penetrate the cylinder body 1, which is beneficial to better protect the gas spring. At the same time, when the piston rod 2 is stretched to a suitable position, the rotating rod 1 6 and the rotating rod 2 7 rotate, thereby avoiding excessive stretching of the piston rod 2, thereby avoiding separation between the piston rod 2 and the cylinder body 1, which is convenient for better protection of the gas spring and is beneficial to extending its service life. The structure is simple and easy to operate.
[0027] In this embodiment, a lifting ring 24 is fixedly installed on the bottom of the cylinder body 1, a lifting ring 11 is fixedly installed on the top of the mounting plate 8, a sealing plug 16 is fixedly installed on the top inner wall of the cylinder body 1, the sealing plug 16 is sleeved with the piston rod 2, and a sealing ring is provided on the outside of the bottom end of the piston rod 2, and is slidably connected to the inner wall of the cylinder body 1.
[0028] Specifically, when in use, the second lifting ring 24 and the first lifting ring 11 can be installed at appropriate positions respectively, and then the sealing plug 16 can be used to prevent the gas spring from leaking.
[0029] The second protection component includes a bottom block 17, a vertical rod 18, a clamping spring 19, a limiting nut 20, a protection plate, a support plate 22, a sealing ring 21, a mounting sleeve 23, a spring shock absorber 25, a mounting spring 26 and a mounting rod 27. The bottom block 17 is fixedly mounted on the bottom of the piston rod 2, the vertical rod 18 is fixedly mounted on the bottom of the bottom block 17, the protection plate is movably sleeved on the outside of the vertical rod 18, the clamping spring 19 is movably sleeved on the outside of the vertical rod 18, and the bottom end of the clamping spring 19 is clamped with the limiting nut 20, the limiting nut 20 is movably sleeved on the outside of the vertical rod 18, and the bottom end of the limiting nut 20 is clamped with the top of the protection plate. The protective plate is provided with a through hole inside, the support plate 22 is fixedly mounted on the outside of the protective plate, a sealing ring 21 is arranged on the outside of the protective plate for sealing between the protective plate and the inside of the cylinder body 1, a groove is arranged inside the cylinder body 1, a spring shock-absorbing damper 25 is fixedly mounted on the bottom of the groove, the top of the spring shock-absorbing damper 25 is fixedly connected to the mounting rod 27, the mounting sleeve 23 is fixedly mounted on the bottom of the support plate 22, a mounting spring 26 is arranged inside the mounting sleeve 23, the top end of the mounting rod 27 is movably plugged into the inside of the mounting sleeve 23, and the bottom end of the mounting spring 26 is clamped with the top end of the mounting rod 27.
[0030] Specifically, during use, the height of the limit nut 20 can be adjusted according to the specific use of the gas spring, and the moving range of the piston rod 2 can be adjusted to avoid excessive stretching of the piston rod 2. When the gas spring is subjected to load pressure, the piston rod 2 contracts, and the mounting sleeve 23 moves. At the same time, the mounting rod 27 and the mounting spring 26 are used to limit the contraction length of the piston rod 2. At the same time, the spring shock-absorbing damper 25 is used to perform shock-absorbing operations to prevent the gas spring from being vibrated, which in turn causes the seal to loosen, which is conducive to better protecting the seal of the gas spring.
[0031] In summary, compared with the prior art, the gas spring has at least the following beneficial effects: by providing a protective component 1, when in use, when the piston rod 2 is subjected to a pressure load, the piston rod 2 moves to a suitable position, and then the limit spring 10 contracts, and the limit rod 5 and the limit sleeve 9 are plugged into a suitable position, thereby avoiding excessive movement of the piston rod 2, avoiding excessive plugging of the piston rod 2 to cause damage to the cylinder body 1 or directly penetrate the cylinder body 1, which is beneficial to better protect the gas spring. At the same time, when the piston rod 2 is stretched to a suitable position, the rotating rod 1 6 and the rotating rod 2 7 rotate, thereby avoiding excessive stretching of the piston rod 2, thereby avoiding separation between the piston rod 2 and the cylinder body 1, which is convenient for better protection of the gas spring and is beneficial to extending its service life. The structure is simple and easy to operate.
[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A gas spring protection mechanism, characterized in that: include: A cylinder body (1), wherein a piston rod (2) is arranged inside the cylinder body (1), a protective component 1 is arranged on the top of the cylinder body (1), and a protective component 2 is arranged inside the cylinder body (1), wherein the protective component 1 comprises a connecting seat 1 (13), a connecting seat 2 (14), a movable shaft (12), a rotating rod 1 (6), a rotating rod 2 (7), a limiting sleeve (9), a limiting spring (10), a top plate (3), a threaded sleeve (4) and a limiting rod (5), wherein the top plate (3) is fixedly mounted on the top of the threaded sleeve (4), and the threaded sleeve (4) is movably sleeved on the outer wall of the cylinder body (1), and a mounting plate (8) is fixedly mounted on the top of the piston rod (2), and the connecting seat 1 (13) is fixedly mounted on the mounting plate (8). The bottom of the plate (8), the connecting seat 2 (14) is fixedly mounted on the top of the top plate (3), the top of the rotating rod 2 (7) is movably sleeved with the connecting seat 1 (13), the bottom of the rotating rod 1 (6) is movably sleeved with the connecting seat 2 (14), the movable shaft (12) is movably inserted into the top of the rotating rod 1 (6) and the bottom of the rotating rod 2 (7), the limiting sleeve (9) is fixedly mounted on the bottom of the mounting plate (8), the limiting rod (5) is fixedly mounted on the top of the top plate (3), the limiting sleeve (9) is movably sleeved on the top of the limiting rod (5), the limiting spring (10) is arranged inside the limiting sleeve (9), and the bottom end of the limiting spring (10) is clamped with the limiting rod (5).
2. A gas spring protection mechanism according to claim 1, characterized in that: A second lifting ring (24) is fixedly mounted on the bottom of the cylinder body (1), and a first lifting ring (11) is fixedly mounted on the top of the mounting plate (8).
3. A gas spring protection mechanism according to claim 2, characterized in that: A sealing plug (16) is fixedly mounted on the top inner wall of the cylinder body (1), and the sealing plug (16) is sleeved with the piston rod (2).
4. A gas spring protection mechanism according to claim 3, characterized in that: A sealing ring is provided on the outside of the bottom end of the piston rod (2) and is slidably connected to the inner wall of the cylinder body (1).
5. A gas spring protection mechanism according to claim 4, characterized in that: The second protection component comprises a bottom block (17), a vertical rod (18), a clamping spring (19), a limiting nut (20), a protection plate, a support plate (22), a sealing ring (21), a mounting sleeve (23), a spring shock absorber (25), a mounting spring (26) and a mounting rod (27). The bottom block (17) is fixedly mounted on the bottom of the piston rod (2), the vertical rod (18) is fixedly mounted on the bottom of the bottom block (17), the protection plate is movably sleeved on the outside of the vertical rod (18), the clamping spring (19) is movably sleeved on the outside of the vertical rod (18), and the bottom end of the clamping spring (19) is clamped with the limiting nut (20), the limiting nut (20) is movably sleeved on the outside of the vertical rod (18), and the bottom end of the limiting nut (20) is clamped with the top of the protection plate, and a through hole is opened inside the protection plate.
6. A gas spring protection mechanism according to claim 5, characterized in that: The support plate (22) is fixedly mounted on the outside of the protective plate. A sealing ring (21) is provided on the outside of the protective plate for sealing between the protective plate and the inside of the cylinder body (1). A groove is provided inside the cylinder body (1), and the spring shock absorber (25) is fixedly mounted at the bottom of the groove.
7. A gas spring protection mechanism according to claim 5, characterized in that: The top of the spring shock absorber (25) is fixedly connected to the mounting rod (27), the mounting sleeve (23) is fixedly mounted on the bottom of the support plate (22), a mounting spring (26) is arranged inside the mounting sleeve (23), the top of the mounting rod (27) is movably plugged into the inside of the mounting sleeve (23), and the bottom end of the mounting spring (26) is clamped with the top of the mounting rod (27).