Lifting-controllable gas spring

Abstract

The utility model relates to the technical field of gas springs, in particular to a lifting-controllable gas spring which comprises a cylinder body, a piston rod is arranged on the inner side of the cylinder body, a pair of fixing blocks are fixedly connected to the outer side of one end of the piston rod, a pair of fixing rods are fixedly connected to the outer side of the cylinder body, a plurality of groove holes are formed in the outer sides of the fixing rods, and the fixing blocks are arranged in the groove holes. A control assembly is arranged on the outer side of the fixing block. Through cooperative arrangement of a piston rod, a fixing block, an electric push rod, a limiting rod fixing rod and a groove hole, when the limiting rod is inserted into the groove hole, further movement of the piston rod can be limited, so that the current height position of the gas spring is locked, flexible and accurate control over lifting of the gas spring is achieved, and it is guaranteed that the piston rod can be kept stable after position adjustment is accurate; and through cooperative arrangement of the piston rod, a cleaning ring and a connecting block, dust and impurities on the surface of the piston rod can be conveniently cleaned, and the situation that abrasion of the piston rod is aggravated due to impurity attachment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas spring technical field, especially lift controllable gas spring. BACKGROUND

[0002] Gas spring is a kind of device using gas pressure to generate elastic force, it is enclosed container, inside filled with gas, two ends are connected with piston or piston rod, when the outside pressure or stretch gas spring, the pressure inside gas will increase, to generate elastic force to resist the action of external force.

[0003] For the related technology in the above, the defects of the existing gas spring are that when the environment where the gas spring is located shakes, the piston rod shakes, and the sealing element between the piston rod and the cylinder body can be accelerated wear due to uneven stress, additional loss of components is caused, and the use time is reduced, therefore, the utility model provides a lift controllable gas spring. UTILITY MODEL CONTENTS

[0004] The purpose of the present application is to provide a lift controllable gas spring to solve the problem that the sealing element between the piston rod and the cylinder body of the gas spring can be accelerated wear due to uneven stress when the environment where the gas spring is located shakes, additional loss of components is caused, and the use time is reduced.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a lift controllable gas spring, comprising a cylinder body, a piston rod is arranged on the inner side of the cylinder body, a pair of fixed blocks are fixedly connected to the outer side of one end of the piston rod, a pair of fixed rods are fixedly connected to the outer side of the cylinder body, a plurality of slot holes are formed in the outer side of the fixed rod, and a control assembly is arranged on the outer side of the fixed block.

[0006] Preferably, the control assembly comprises a fixed frame fixedly connected to the outer side of the fixed block, an electric push rod is fixedly connected to the inner wall of the fixed frame, and a limiting rod matched with the slot hole is fixedly connected to the output end of the electric push rod.

[0007] Preferably, a limiting ring is fixedly connected to the outer side of the fixed block, and the limiting rod is slidingly connected to the inner wall side surface of the limiting ring.

[0008] Preferably, a connecting block is arranged on the outer side of the fixed rod, and a cleaning ring matched with the piston rod is fixedly connected to the outer side of the connecting block.

[0009] Preferably, a clamping block is fixedly connected to the outer side of one of the cleaning rings, and a clamping groove matched with the clamping block is formed in the outer side of the other cleaning ring.

[0010] Preferably, the outer side of the connecting block is provided with a bolt, and the outer side of the connecting block and the fixing rod are both provided with a threaded hole matched with the bolt.

[0011] Preferably, one end of the piston rod away from the cylinder body is fixedly connected with a screw rod, one end of the screw rod is threadedly connected with a connecting head, and the outer side of the screw rod is provided with a nut.

[0012] In conclusion, the technical effects and advantages of the present application are as follows:

[0013] 1. In the present application, the piston rod, the fixing block, the electric push rod, the limiting rod fixing rod and the groove hole are cooperatively arranged, so that when the limiting rod is inserted into the groove hole, the further movement of the piston rod can be limited, thereby locking the current height position of the gas spring, realizing flexible and accurate control of the lifting of the gas spring, and ensuring that the piston rod can be kept stable after accurate position adjustment, reducing wear and tear and prolonging the service life.

[0014] 2. In the present application, the piston rod, the cleaning ring and the connecting block are cooperatively arranged, so that the dust and impurities on the surface of the piston rod can be cleaned, and the wear of the piston rod caused by the impurities can be reduced. The cooperation of the clamping block and the clamping groove can better position the two cleaning rings. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a first perspective view of the structure of the present application.

[0017] Figure 2 It is a second perspective view of the structure of the present application.

[0018] Figure 3 It is a structure diagram of the clamping block and the clamping groove in the present application.

[0019] Figure 4 It is Figure 1 A enlarged structure diagram.

[0020] In the figure: 1, cylinder body; 2, piston rod; 3, fixing frame; 4, electric push rod; 5, limiting rod; 6, limiting ring; 7, fixing rod; 8, fixing block; 9, groove hole; 10, cleaning ring; 11, connecting head; 12, screw rod; 13, nut; 14, clamping block; 15, clamping groove; 16, connecting block; 17, threaded hole; 18, bolt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense. For example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; or can be the communication between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0023] Embodiment one: reference Figures 1-4The illustrated lifting controllable gas spring includes a cylinder body 1, which is the main structure of the entire gas spring and provides installation and accommodation space for internal components. The chamber formed inside the cylinder body 1 is the working chamber of the gas spring and is the place for gas storage and pressure generation, playing a fundamental supporting role in the overall performance of the gas spring. The inside of the cylinder body 1 is provided with a piston rod 2, which is the key component for the extension and retraction of the gas spring. Its reciprocating movement inside the cylinder body 1 drives the external connected components to realize lifting action. During the extension and retraction of the gas spring, it bears axial tension and pressure and transmits the force to the external load. One end of the piston rod 2 is fixedly connected with a pair of fixed blocks 8, which serve as the connection hub of the control assembly and the piston rod 2, stably connecting the control assembly and the piston rod 2, enabling the control assembly to move synchronously with the piston rod 2, while providing a force point for subsequent lifting control of the piston rod 2, ensuring the effectiveness and accuracy of the control. The outside of the cylinder body 1 is fixedly connected with a pair of fixed rods 7, which provide a mounting base for the control assembly. Their positions are fixed relative to the cylinder body 1, enabling the control assembly to have a stable reference and support during work, and maintaining the stability of the overall structure during the working process of the gas spring, avoiding the influence of control effect caused by position deviation of the control assembly due to external force and other factors. The outside of the fixed rod 7 is provided with a plurality of slot holes 9, which cooperate with the limiting rod 5. When the limiting rod 5 is inserted into different slot holes 9, the lifting range of the piston rod 2 can be limited, realizing accurate control of the lifting position of the gas spring and meeting the specific needs of the lifting height of the gas spring under different working conditions. The control assembly includes a fixed frame 3 fixedly connected with the outside of the fixed block 8, which plays the role of connection and support, stably installing the electric push rod 4 on the fixed block 8, ensuring that the electric push rod 4 will not displace or shake during work due to its own movement or external interference, providing a stable working platform for the electric push rod 4 and ensuring that its output force can be accurately transmitted to the limiting rod 5, thereby effectively controlling the lifting of the piston rod 2.The inner wall of the fixing frame 3 is fixedly connected with an electric push rod 4, which is a power source for realizing the lifting control of the gas spring. The electric push rod 4 generates a straight-line moving thrust or pull force by receiving an external control signal, pushes the limiting rod 5 to move correspondingly, thereby changing the movable range of the piston rod 2, accurately controlling the lifting height of the gas spring, having the characteristics of high control precision and fast response speed, and being able to adapt to the requirements of various complex working scenes for the lifting control of the gas spring. The output end of the electric push rod 4 is fixedly connected with a limiting rod 5 matched with the slot hole 9. The limiting rod 5 is inserted into or separated from the slot hole 9 on the fixed rod 7 under the driving of the electric push rod 4. When the limiting rod 5 is inserted into the slot hole 9, the further movement of the piston rod 2 can be limited, thereby locking the current height position of the gas spring. When the limiting rod 5 is separated from the slot hole 9, the piston rod 2 can restore the free lifting state. In this way, flexible and accurate control of the lifting of the gas spring is realized. The outer side of the fixed block 8 is fixedly connected with a limiting ring 6. The limiting ring 6 plays a guiding and limiting role on the movement of the limiting rod 5, so that the limiting rod 5 can only slide linearly along the inner wall side of the limiting ring 6 under the pushing of the electric push rod 4, avoiding the deviation or shaking of the limiting rod 5 during the movement, ensuring that the limiting rod 5 can accurately insert into or separate from the slot hole 9 on the fixed rod 7, and improving the working reliability and stability of the control assembly, thereby ensuring the accuracy and effectiveness of the whole lifting control of the gas spring.

[0024] In the embodiment, the connecting head 11 is threadedly connected with the screw rod 12, the nut 13 limits the connecting head 11, the piston rod 2 moves along the cylinder body 1, the piston rod 2 drives the fixed block 8 to slide along the fixed rod 7 to a suitable position, the electric push rod 4 drives the limiting rod 5 to move along the limiting ring 6, and the limiting rod 5 is clamped with the corresponding slot hole 9 to limit and fix the fixed rod 7, thereby realizing the strengthening of the stability after height adjustment.

[0025] Embodiment two: refer to Figures 1-4, based on the same idea as in the first embodiment, the present embodiment also proposes that the outer side of the fixed rod 7 is provided with a connecting block 16, which is used to install the cleaning ring 10 and provide a stable connection basis for the cleaning ring 10, so that it can be fixed on the related structure of the fixed rod 7. The outer side of the connecting block 16 is fixedly connected with the cleaning ring 10 matched with the piston rod 2, which can clean the piston rod 2 during the extension and retraction of the piston rod 2, remove the dust and impurities that may be attached to the surface of the piston rod 2, and ensure the cleanliness of the piston rod 2, reduce the adverse effects of impurities on the movement of the piston rod 2, such as wear and tear, and maintain the smoothness and stability of the entire device operation; the outer side of one of the cleaning rings 10 is fixedly connected with a clamping block 14, and the outer side of the other cleaning ring 10 is provided with a clamping groove 15 matched with the clamping block 14, and the cooperation of the clamping block 14 and the clamping groove 15 can better position the two cleaning rings 10, prevent the relative displacement or rotation of the cleaning rings 10 during use, and ensure the effectiveness and reliability of the cleaning of the piston rod 2 by the cleaning rings 10; the outer side of the connecting block 16 is provided with a bolt 18, and the outer side of the connecting block 16 and the fixed rod 7 is provided with a threaded hole 17 matched with the bolt 18, the bolt 18 passes through the threaded hole 17 of the connecting block 16 and the fixed rod 7, and the connecting block 16 can be firmly fixed on the fixed rod 7, ensuring that the connecting block 16 and the cleaning rings 10 and other components thereon will not easily loosen or fall off during the operation of the device, and enhancing the connection strength and stability of the entire structure; the end of the piston rod 2 away from the cylinder 1 is fixedly connected with a screw rod 12, which is used to connect the connecting head 11, and the connecting head 11 can be easily installed and removed through threaded connection, and different types of connecting heads 11 can be flexibly replaced according to actual needs to adapt to different working scenes or connection objects; the outer side of the screw rod 12 is provided with a nut 13, which can fasten the connection between the connecting head 11 and the screw rod 12, prevent the connecting head 11 from loosening due to vibration and other factors during use, further ensure the reliability and stability of the connection, and enable the connecting structure of the piston rod 2 and the connecting head 11 to stably transmit force or motion, ensuring the normal operation of the entire device.

[0026] In the present embodiment, the cleaning ring 10 scrapes off the impurities on the surface of the piston rod 2 during the movement of the piston rod 2, and cleans the surface of the piston rod 2. The bolt 18 is twisted off to release the limiting and fixing of the connecting block 16, which facilitates the disassembly and cleaning or replacement of the connecting block 16 and the cleaning ring 10.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A lift-controllable gas spring comprising a cylinder (1), characterized in that: The inner side of the cylinder body (1) is provided with a piston rod (2), one end of the piston rod (2) is fixedly connected with a pair of fixed blocks (8), the outer side of the cylinder body (1) is fixedly connected with a pair of fixed rods (7), a plurality of slot holes (9) are formed in the outer side of the fixed rod (7), and the outer side of the fixed block (8) is provided with a control assembly.

2. A lift controlled gas spring according to claim 1, characterized in that: The control assembly comprises a fixed frame (3) fixedly connected with the outer side of the fixed block (8), an electric push rod (4) fixedly connected to the inner wall of the fixed frame (3), and a limiting rod (5) fixedly connected to the output end of the electric push rod (4) and matched with the slot hole (9).

3. A lift controlled gas spring according to claim 2, characterized in that: The outer side of the fixed block (8) is fixedly connected with a limiting ring (6), and the limiting rod (5) is slidably connected with the inner wall side of the limiting ring (6).

4. The lift controlled gas spring of claim 1, wherein: The outer side of the fixed rod (7) is provided with a connecting block (16), and the outer side of the connecting block (16) is fixedly connected with a cleaning ring (10) matched with the piston rod (2).

5. A lift controlled gas spring according to claim 4, characterized in that: The outer side of one of the cleaning rings (10) is fixedly connected with a clamping block (14), and the outer side of the other cleaning ring (10) is provided with a clamping groove (15) matched with the clamping block (14).

6. A lift controlled gas spring according to claim 5, characterized in that: The outer side of the connecting block (16) is provided with a bolt (18), and the outer side of the connecting block (16) and the fixed rod (7) are both provided with a threaded hole (17) matched with the bolt (18).

7. A lift controlled gas spring according to claim 6, characterized in that: The end of the piston rod (2) away from the cylinder body (1) is fixedly connected with a screw rod (12), one end of the screw rod (12) is threadedly connected with a connecting head (11), and the outer side of the screw rod (12) is provided with a nut (13).

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