High-performance self-locking gas spring

Abstract

The utility model discloses a high-performance self-locking gas spring, and relates to the technical field of gas springs. The sealing device comprises a piston cylinder, first sliding grooves are formed in the two ends of the inner wall of the piston cylinder, sliding blocks are installed in the first sliding grooves, a threaded groove is formed in any sliding block, a sealing ring is installed between the two sliding blocks, and the outer side wall of the sealing ring is attached to the inner side wall of the piston cylinder. A piston rod is mounted on the sealing ring in a penetrating manner; according to the high-performance self-locking type gas spring, the space in the piston cylinder is adjusted by adjusting the up-down position of the sealing ring in the piston cylinder, then the interior of the piston cylinder is adjusted, different loads can be adapted according to needs, the self-locking function is matched with air pressure adjustment, the gas spring can be kept stable when shortened to the bottommost end, and the gas spring is not prone to falling off. And the use convenience and accuracy are improved, so that the device is more excellent in performance and is more favored in numerous mechanical application scenes.

Description

Technical Field

[0001] This utility model relates to the field of gas spring technology, and in particular to a high-performance self-locking gas spring. Background Technology

[0002] A high-performance self-locking gas spring is a commonly used power assist component in the mechanical field. It mainly consists of a cylinder, piston rod, and piston. In various equipment, such as car trunks and adjustable seats, it provides support, cushioning, and power assistance, facilitating easy opening, closing, and angle adjustment of components. Its key feature is its ability to self-lock at a specific position, maintaining a stable state. This particular model innovatively optimizes performance by adjusting the internal air pressure through changes in the piston cylinder's internal space, making it more flexible and adaptable to a wider range of working conditions.

[0003] Traditional gas springs often have a fixed gas pressure, making them inflexible and unable to be adjusted according to actual usage. When facing different loads, such as when an adjustable desk or chair is used by a heavier user, the original gas spring may not be able to provide adequate support due to its fixed gas pressure, leading to difficulty in raising and lowering or unstable support. Moreover, when equipment functions are upgraded or stroke requirements change, fixed-pressure gas springs cannot meet new demands, limiting their applicability and affecting the overall user experience and performance of the equipment, thus requiring urgent improvement.

[0004] Therefore, a new high-performance self-locking gas spring is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-performance self-locking gas spring to solve the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a high-performance self-locking gas spring, comprising a piston cylinder. Both ends of the inner wall of the piston cylinder are provided with first sliding grooves, and sliders are installed within these first sliding grooves. Each slider has a threaded groove. A sealing ring is installed between two sliders, with its outer wall fitting against the inner wall of the piston cylinder. A piston rod is threaded through the sealing ring, and an extension rod is installed within the piston rod. A first limiting plate is installed at the bottom of the piston rod, located at the end of the sealing ring away from the piston rod. The piston cylinder has two symmetrical first connecting grooves, each connecting groove connecting to a corresponding first sliding groove. The piston cylinder also has two second mounting grooves. Each slider has a threaded post that engages with it, and each threaded post extends through a corresponding first connecting groove. A force-applying block is installed at the end of each threaded post near the first connecting groove, and each force-applying block has a force-applying groove. Each force-applying block is installed within a second mounting groove.

[0008] Preferably, a bearing is installed at the end of any one of the threaded posts away from the corresponding force-applying block, and any one of the bearings is connected to the first mounting groove.

[0009] Preferably, the piston rod has a threaded hole extending to the extension rod, and a bolt that engages with the threaded hole is installed in the threaded hole. The extension rod has multiple threaded holes from top to bottom on its surface.

[0010] Preferably, a mounting post is installed at the bottom of the inner wall of the piston cylinder, and a mounting block is fixedly installed at the top of the mounting post. The outer wall of the mounting block is arc-shaped. A locking block is installed at the bottom of the first limiting plate. A second sliding groove is formed at the end of the locking block away from the first limiting plate. The diameter of the inner wall of the second sliding groove is slightly larger than the diameter of the mounting block and the movable block. A third sliding groove is formed at one end of the inner wall of the locking block. A second connecting groove is formed at the end of the third sliding groove away from the second sliding groove. A telescopic rod is installed in the second connecting groove. A locking block is installed at the end of the telescopic rod away from the second connecting groove. The upper end of the locking block is flat. A spring is installed at the end of the locking block near the telescopic rod. The other end of the spring is connected to the end of the second sliding groove away from the second sliding groove.

[0011] Preferably, a second limiting plate is installed at the end of the telescopic rod away from the locking block, and the diameter of the second limiting plate is larger than the diameter of the second connecting groove.

[0012] Preferably, a movable block is movably connected to the outer wall of the mounting column, and the side wall of the movable block has an arc-shaped surface.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] This high-performance self-locking gas spring adjusts the space inside the piston cylinder by adjusting the vertical position of the sealing ring within the piston cylinder, thereby allowing for adjustment of the space inside the piston cylinder. It can adapt to different loads as needed. Moreover, the self-locking function, combined with air pressure regulation, allows the gas spring to remain stable when it is shortened to its lowest point, improving the convenience and precision of use, and making it perform better in many mechanical applications.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a structural diagram showing the installation configuration of this utility model;

[0018] Figure 2 This is a structural diagram of the piston cylinder of this utility model;

[0019] Figure 3 This is a structural diagram of the threaded column of this utility model;

[0020] Figure 4 This is a structural diagram of the sealing ring of this utility model;

[0021] Figure 5 This is a structural diagram of the piston rod of this utility model;

[0022] Figure 6 This utility model relates to the mounting block and the movable block.

[0023] Figure 7 This is a structural diagram of the locking block of this utility model;

[0024] Figure 8 This is a structural diagram of the telescopic rod and locking block of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 110. Piston cylinder; 111. First sliding groove; 112. First mounting groove; 113. First connecting groove; 114. Second mounting groove; 120. Bearing; 121. Threaded column; 122. Force-applying block; 123. Force-applying groove; 130. Sealing ring; 131. Slider; 132. Threaded groove; 140. First limiting plate; 141. Piston rod; 142. Extension rod; 143. Threaded hole; 144. Bolt; 210. Mounting column; 211. Mounting block; 212. Movable block; 220. Locking block; 221. Second sliding groove; 222. Third sliding groove; 223. Second connecting groove; 224. Spring; 230. Telescopic rod; 231. Locking block; 232. Second limiting plate. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] To better understand the purpose, structure, and function of this utility model, a high-performance self-locking gas spring of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] Please see Figure 1-8As shown, this embodiment is a high-performance self-locking gas spring, including a piston cylinder 110. First sliding grooves 111 are formed at both ends of the inner wall of the piston cylinder 110. Slider blocks 131 are installed within the first sliding grooves 111. Each slider 131 has a threaded groove 132. A sealing ring 130 is installed between two sliders 131, with its outer wall fitting against the inner wall of the piston cylinder 110. A piston rod 141 is threaded through the sealing ring 130, and an extension rod 142 is installed within the piston rod 141. A first limiting plate 140 is installed at the bottom end of the piston rod 141, located away from the piston ring 130. At one end of rod 141, the piston cylinder 110 has two symmetrical first connecting grooves 113, each of which is connected to a corresponding first sliding groove 111. The piston cylinder 110 has two second mounting grooves 114. Each slider 131 has a threaded post 121 that engages with it. Each threaded post 121 passes through a corresponding first connecting groove 113. Each end of the threaded post 121 near the first connecting groove 113 is equipped with a force-applying block 122. Each force-applying block 122 has a force-applying groove 123 and is installed in a second mounting groove 114.

[0032] Each of the threaded posts 121 is equipped with a bearing 120 at the end away from the corresponding force-applying block 122, and each of the bearings 120 is connected to the first mounting groove 112. This design can effectively reduce the friction generated when the threaded posts 121 rotate, and increase their service life.

[0033] The piston rod 141 has a threaded hole 143 that extends through to the extension rod 142. A bolt 144 is installed in the threaded hole 143 and engages with it. The extension rod 142 has multiple threaded holes 143 from top to bottom on its surface. This design can stably fix the extension rod 142 to the piston rod 141 by the length of the extension rod 142 extending into the piston rod 141, preventing the extension rod 142 from suddenly falling and causing danger when lifting certain objects.

[0034] A mounting post 210 is installed at the bottom of the inner wall of the piston cylinder 110. A mounting block 211 is fixedly installed at the top of the mounting post 210. The outer wall of the mounting block 211 is arc-shaped. A locking block 220 is installed at the bottom of the first limiting plate 140. A second sliding groove 221 is formed at the end of the locking block 220 away from the first limiting plate 140. The diameter of the inner wall of the second sliding groove 221 is slightly larger than the diameter of the mounting block 211 and the movable block 212. A third sliding groove 222 is formed at one end of the inner wall of the locking block 220. A second connecting groove 223 is formed at the end of the third sliding groove 222 away from the second sliding groove 221. A telescopic rod 230 is installed in the second connecting groove 223. A locking block 231 is installed at the end of the telescopic rod 230 away from the second connecting groove 223. The upper end of the locking block 231 is flat. A spring 224 is installed at the end of the locking block 231 near the telescopic rod 230. The other end of the spring 224 is connected to the end of the second sliding groove 221 away from the second sliding groove 221. A second limiting plate 232 is installed at the end of the telescopic rod 230 away from the locking block 231. The diameter of the second limiting plate 232 is larger than the diameter of the second connecting groove 223. A movable block 212 is movably connected to the outer wall of the mounting column 210. The side wall of the movable block 212 is arc-shaped. This design allows the first limiting plate 212 to be in place when the piston rod 141 retracts into the piston cylinder 110. The second sliding groove 221 on the locking block 220 at the bottom of the 40 will cover the mounting post 210 and the mounting block 211 at the top of the mounting post 210. When the mounting block 211 enters, it will move the locking block 231 and the telescopic rod 230 towards the second limiting plate 232. While the mounting block 211 is in place, the locking block 231 will be pressed and pushed by the spring 224 onto the plane at the lower end of the mounting block 211. The spring 224 will continuously apply a force to the locking block 231 in the direction of the mounting block 211. Since the lower end of the mounting block 211 is a plane, the locking block 231 cannot move upward, thus preventing the locking block 220, the upper first limiting plate 140, and the piston rod 141 from moving upward. When it is necessary to release this state, a downward force is applied to the locking block 220. As the locking block 220 moves downward, the locking block 231 moves towards the second connecting groove 223. As the locking block 220 continues to move downward, the locking block 231 will contact the movable block 212. Since the bottom of the movable block 212 is curved, the locking block 231 will drive the movable block 212 to rise when it rises. When the movable block 212 can no longer rise, the locking block 231 will move to the curved surface of the mounting block 211 and separate from the mounting block 211. At this time, the locking block 220 can move upward under the action of the first limiting plate 140, thereby allowing the piston rod 141 to move.

[0035] Working principle: When the internal air pressure needs to be adjusted, a screwdriver is used to engage with the force groove 123 on the force plate. This causes the threaded column 121 to rotate forward or in the opposite direction via the force block 122, which in turn causes the two sliders 131 to move up or down. When the sliders 131 move, they drive the sealing ring 130 to move as well. When the sealing ring moves downward, the space between the sealing ring 130 and the bottom of the inner wall of the piston cylinder 110 decreases, but the gas mass remains unchanged, thus increasing the gas pressure. Conversely, the threaded column 121 is rotated in the opposite direction. When the sealing ring 130 moves downward, the piston rod 141 also needs to move downward synchronously, reducing the length of the piston rod 141 extending out of the piston cylinder 110. At this point, the extension rod 142 can be pulled out of the length of the piston rod 141 and fixed with bolts 144 into the threaded holes 143 on the piston rod 141 and extension rod 142 to adjust the range of the top support.

[0036] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A high-performance self-locking gas spring, characterized in that, include: A piston cylinder (110) has first sliding grooves (111) at both ends of its inner wall. A slider (131) is installed in each of the first sliding grooves (111). Each slider (131) has a threaded groove (132). A sealing ring (130) is installed between two sliders (131). The outer wall of the sealing ring (130) is in contact with the inner wall of the piston cylinder (110). A piston rod (141) is installed through the sealing ring (130). An extension rod (142) is installed inside the piston rod (141). A first limiting plate (140) is installed at the bottom end of the piston rod (141), located at the end of the sealing ring (130) away from the piston rod (141). The piston cylinder (110) has two symmetrical first connecting grooves (113), each of which is connected to a corresponding first sliding groove (111). The piston cylinder (110) has two second mounting grooves (114). Each of the sliders (131) has a threaded post (121) that engages with it. Each of the threaded posts (121) passes through the corresponding first connecting groove (113). Each of the threaded posts (121) has a force-applying block (122) installed at the end of the threaded post (121) near the first connecting groove (113). Each of the force-applying blocks (122) has a force-applying groove (123), and each of the force-applying blocks (122) is installed in the second mounting groove (114).

2. The high-performance self-locking gas spring according to claim 1, characterized in that, Each of the threaded posts (121) is equipped with a bearing (120) at the end away from the corresponding force-applying block (122), and each of the bearings (120) is connected to the first mounting groove (112).

3. The high-performance self-locking gas spring according to claim 1, characterized in that, The piston rod (141) has a threaded hole (143) that extends through to the extension rod (142). A bolt (144) is installed in the threaded hole (143) and engages with it. The extension rod (142) has multiple threaded holes from top to bottom on its surface.

4. A high-performance self-locking gas spring according to claim 1, characterized in that, A mounting post (210) is installed at the bottom of the inner wall of the piston cylinder (110). A mounting block (211) is fixedly installed at the top of the mounting post (210). The outer wall of the mounting block (211) is arc-shaped. A locking block (220) is installed at the bottom of the first limiting plate (140). A second sliding groove (221) is provided at the end of the locking block (220) away from the first limiting plate (140). The inner wall diameter of the second sliding groove (221) is slightly larger than the diameter of the mounting block (211) and the movable block (212). A third sliding groove is provided at one end of the inner wall of the locking block (220). (222) The third sliding groove (222) has a second connecting groove (223) at the end away from the second sliding groove (221). A telescopic rod (230) is installed in the second connecting groove (223). A locking block (231) is installed at the end of the telescopic rod (230) away from the second connecting groove (223). The upper end of the locking block (231) is flat. A spring (224) is installed at the end of the locking block (231) close to the telescopic rod (230). The other end of the spring (224) is connected to the end of the second sliding groove (221) away from the second sliding groove (221).

5. A high-performance self-locking gas spring according to claim 4, characterized in that, The telescopic rod (230) is equipped with a second limiting plate (232) at the end away from the locking block (231), and the diameter of the second limiting plate (232) is larger than the diameter of the second connecting groove (223).

6. A high-performance self-locking gas spring according to claim 4, characterized in that, A movable block (212) is movably connected to the outer wall of the mounting column (210), and the side wall of the movable block (212) is an arc-shaped surface.

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