A buffer type gas spring

Abstract

The utility model relates to the technical field of gas springs, specifically to a buffer type gas spring, wherein the inner cylinder mechanism comprises a first connecting sleeve, an inner cylinder outer shell, an air inlet bin, a fixing rod, a stabilizing spring, an air inlet valve and a piston. When in use, the external device is first connected through the first connecting sleeve and the second connecting sleeve at both ends, and the buffering work can be performed after the connection. During the working process, the inner cylinder outer shell pushes the piston toward the inside of the outer cylinder outer shell. During the pushing process, the internal air cavity and the oil cavity can be effectively buffered, and the floating plate can effectively block between the two cavities to prevent the oil inside the oil cavity from flying around. The throttle hole inside the floating plate can be used to reduce the pressure when the pressure inside the oil cavity is too high. When the pressure inside the air cavity is too high, the air inlet plug inside the air inlet valve will push the fixing rod and the stabilizing spring to discharge the gas inside the air cavity through the air inlet bin and the air outlet hole, effectively preventing the damage to the gas spring caused by excessive pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of gas springs, in particular to a buffer type gas spring. Background Art

[0002] As the actuator of lifting motion, gas springs are required to have a certain buffering effect when they are lifted and lowered to prevent direct mechanical collision and damage to the internal parts of the gas spring. The existing buffering forms have various structures and are relatively complicated. Some use throttle valves, hydraulically controlled one-way valves, etc. to control the speed of liquid or gas to achieve the buffering effect.

[0003] For example, the buffer gas spring disclosed in the authorization announcement number CN 207485944 U realizes a buffer gas spring having an outer cylinder, an inner cylinder, a cylinder bottom and an upper cover, a spacer sleeve is slidably provided between the outer cylinder and the inner cylinder, a piston rod is provided at the center of the inner cylinder, and the bottom of the piston rod is connected to a piston that slides with the inner wall of the inner cylinder. However, it does not solve the problem that in previous gas springs, there is often excessive displacement during use, and the air pressure inside the gas spring is too high, which will cause damage to the gas spring itself. Utility Model Content

[0004] The purpose of the utility model is to provide a buffer type gas spring to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A buffer gas spring, comprising an inner cylinder mechanism, the inner cylinder mechanism comprising a first connecting ring, an inner cylinder outer shell, an air intake bin, a fixing rod, a stabilizing spring, an air intake valve and a piston, the inner cylinder mechanism comprising a first connecting ring, the inner cylinder outer shell being fixedly arranged at the bottom end of the first connecting ring, the air intake bin being fixedly arranged inside the inner cylinder outer shell, the air intake bin being fixedly arranged inside the fixing rod, the stabilizing spring being fixedly arranged around the fixing rod, the air intake valve being fixedly arranged on one side of the stabilizing spring, and the piston being fixedly arranged on one side of the inner cylinder outer shell;

[0007] An outer cylinder mechanism is fixedly arranged around the inner cylinder shell, and the outer cylinder mechanism includes an outer cylinder shell, a sealing plate, an air cavity, a floating plate and an oil cavity. The outer cylinder mechanism includes an outer cylinder shell, a sealing plate is fixedly arranged inside the outer cylinder shell, an air cavity is fixedly arranged on one side of the sealing plate, a floating plate is movably arranged on one side of the air cavity, and an oil cavity is fixedly arranged on one side of the floating plate.

[0008] Preferably, a plurality of throttling holes are fixedly provided inside the floating plate, and sliding grooves are fixedly provided on both sides of the floating plate. The advantage is that the problem of damage to the spring due to excessive buffer displacement during the buffering process can be prevented.

[0009] Preferably, a second connecting ring is fixed to one side of the outer shell of the outer cylinder, which is beneficial in that an external mechanical device can be connected through the connecting ring.

[0010] Preferably, a plurality of air outlet holes are fixedly provided on both sides of the inner cylinder shell. The advantage is that when the air pressure inside the gas spring is too high, the pressure inside the air cavity can be released through the air inlet valve, which effectively ensures the safety and stability of the gas spring.

[0011] Preferably, a baffle is fixedly provided on one side of the fixing rod, which is beneficial in that the fixing rod is fixed and the stability of the air intake valve is ensured when the internal air pressure is stable.

[0012] Preferably, the air inlet valve includes an air inlet plug, which is beneficial in that the air inlet plug remains stationary when the internal air pressure is normal, and when the internal air pressure is too small or too large, the air inlet plug slides through the throttle hole and the air outlet hole to reduce the pressure inside the air cavity.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] This kind of buffering gas spring, when in use, is first connected to an external device through the first connecting ring and the second connecting ring at both ends, and the buffering work can be carried out after the connection. During the working process, the inner tube shell pushes the piston toward the inside of the outer tube shell. During the pushing process, the internal air chamber and the oil chamber can effectively perform buffering, and the floating plate can effectively block between the two chambers to prevent the oil in the oil chamber from flying around. The throttle hole inside the floating plate can be used to reduce the pressure when the pressure inside the oil chamber is too high. When the pressure inside the air chamber is too high, the air inlet plug inside the air inlet valve will push the fixing rod and the stabilizing spring to discharge the gas inside the air chamber through the air inlet bin and the air outlet, effectively preventing the damage to the gas spring caused by excessive pressure.

[0015] The benefit of this buffer type gas spring is that in previous gas springs, there are often problems such as excessive displacement and excessive air pressure inside the gas spring during use, which will cause damage to the gas spring itself. Therefore, a buffer type gas spring is proposed, which effectively ensures the safety and stability of the gas spring during use through buffering and automatic decompression. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the inner cylinder outer shell structure of the utility model;

[0018] Figure 3 It is a perspective diagram of the internal structure of the overall structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 A magnified schematic diagram of center A.

[0020] In the figure: 1-first connecting ring; 2-inner tube outer shell; 3-inlet chamber; 4-fixing rod; 5-stabilizing spring; 6-inlet valve; 7-piston; 8-outer tube outer shell; 9-sealing plate; 10-air cavity; 11-floating plate; 12-oil cavity; 13-throttle hole; 14-sliding groove; 15-second connecting ring; 16-air outlet hole; 17-baffle; 18-inlet plug. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0023] A buffer gas spring, comprising an inner cylinder mechanism, the inner cylinder mechanism comprising a first connecting collar 1, an inner cylinder outer shell 2, an air intake bin 3, a fixing rod 4, a stabilizing spring 5, an air intake valve 6 and a piston 7, the inner cylinder mechanism comprising a first connecting collar 1, the inner cylinder outer shell 2 is fixedly arranged at the bottom end of the first connecting collar 1, the air intake bin 3 is fixedly arranged inside the inner cylinder outer shell 2, the air intake bin 3 is fixedly arranged inside the fixing rod 4, the fixing rod 4 is fixedly arranged with a stabilizing spring 5 around the circumference, the air intake valve 6 is fixedly arranged on one side of the stabilizing spring 5, and the piston 7 is fixedly arranged on one side of the inner cylinder outer shell 2;

[0024] An outer cylinder mechanism is fixedly arranged around the inner cylinder shell 2, and the outer cylinder mechanism includes an outer cylinder shell 8, a sealing plate 9, an air cavity 10, a floating plate 11 and an oil cavity 12. The outer cylinder mechanism includes an outer cylinder shell 8, a sealing plate 9 is fixedly arranged inside the outer cylinder shell 8, the air cavity 10 is fixedly arranged on one side of the sealing plate 9, a floating plate 11 is movably arranged on one side of the air cavity 10, and the oil cavity 12 is fixedly arranged on one side of the floating plate 11.

[0025] In this embodiment, preferably, a plurality of throttle holes 13 are fixedly provided inside the floating plate 11, and sliding grooves 14 are fixedly provided on both sides of the floating plate 11. The benefit is that the problem of damage to the spring due to excessive buffer displacement during the buffering process is prevented.

[0026] In this embodiment, preferably, a second connecting ring 15 is fixed to one side of the outer cylinder shell 8, which is beneficial in that an external mechanical device can be connected through the connecting ring.

[0027] In this embodiment, preferably, a plurality of air outlet holes 16 are fixedly provided on both sides of the inner tube outer shell 2. The advantage is that when the air pressure inside the gas spring is too high, the pressure inside the air cavity 10 can be released through the air inlet valve 6, which effectively ensures the safety and stability of the gas spring.

[0028] In this embodiment, preferably, a baffle 17 is fixedly provided on one side of the fixing rod 4, which is beneficial in that the fixing rod 4 is fixed to ensure the stability of the intake valve 6 when the internal air pressure is stable.

[0029] In this embodiment, preferably, the air inlet valve 6 includes an air inlet plug 18. The advantage is that when the internal air pressure is normal, the air inlet plug 18 remains stationary. When the internal air pressure is too small or too large, the air inlet plug 18 slides through the throttle hole 13 and the air outlet hole 16 to reduce the pressure inside the air cavity 10.

[0030] When a buffer gas spring of this embodiment is used, it is first connected to an external device through the first connecting ring 1 and the second connecting ring 15 at both ends. After the connection, the buffering work can be performed. During the working process, the inner cylinder shell 2 pushes the piston 7 to the inside of the outer cylinder shell 8. During the pushing process, the internal air chamber 10 and the oil chamber 12 can effectively perform buffering, and the floating plate 11 can effectively block between the two chambers to prevent the oil in the oil chamber 12 from flying around. The throttle hole 13 inside the floating plate 11 can reduce the pressure when the pressure inside the oil chamber 12 is too high. The air chamber 10 When the internal pressure is too high, the air inlet plug 18 inside the air inlet valve 6 will push the fixing rod 4 and the stabilizing spring 5 to discharge the gas inside the air cavity 10 through the air inlet bin 3 and the air outlet 16, effectively preventing damage to the gas spring caused by excessive pressure. The benefit is that in previous gas springs, there are often problems such as excessive displacement and excessive air pressure inside the gas spring during use, which will cause damage to the gas spring itself. Therefore, a buffered gas spring is proposed, which effectively ensures the safety and stability of the gas spring during use through buffering and automatic decompression.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A buffer gas spring, characterized in that: The invention comprises an inner cylinder mechanism, wherein the inner cylinder mechanism comprises a first connecting sleeve (1), an inner cylinder outer shell (2), an air intake chamber (3), a fixing rod (4), a stabilizing spring (5), an air intake valve (6) and a piston (7). The inner cylinder mechanism comprises a first connecting sleeve (1), the inner cylinder outer shell (2) is fixedly arranged at the bottom end of the first connecting sleeve (1), the air intake chamber (3) is fixedly arranged inside the inner cylinder outer shell (2), the air intake chamber (3) is fixedly arranged inside the air intake chamber (3), the fixing rod (4) is fixedly arranged around the fixing rod (4), the air intake valve (6) is fixedly arranged on one side of the stabilizing spring (5), and the piston (7) is fixedly arranged on one side of the inner cylinder outer shell (2); An outer cylinder mechanism is fixedly arranged around the inner cylinder shell (2), the outer cylinder mechanism comprising an outer cylinder shell (8), a sealing plate (9), an air cavity (10), a floating plate (11) and an oil cavity (12). The outer cylinder mechanism comprises an outer cylinder shell (8), a sealing plate (9) is fixedly arranged inside the outer cylinder shell (8), an air cavity (10) is fixedly arranged on one side of the sealing plate (9), a floating plate (11) is movably arranged on one side of the air cavity (10), and an oil cavity (12) is fixedly arranged on one side of the floating plate (11).

2. A buffer gas spring according to claim 1, characterized in that: A plurality of throttling holes (13) are fixedly arranged inside the floating plate (11), and sliding grooves (14) are fixedly arranged on both sides of the floating plate (11).

3. A buffer gas spring according to claim 1, characterized in that: A second connecting sleeve (15) is fixed to one side of the outer cylinder shell (8).

4. A buffer type gas spring according to claim 1, characterized in that: A plurality of air outlet holes (16) are fixedly arranged on both sides of the inner cylinder outer shell (2).

5. A buffer gas spring according to claim 1, characterized in that: A baffle (17) is fixedly provided on one side of the fixing rod (4).

6. A buffer type gas spring according to claim 1, characterized in that: The air intake valve (6) comprises an air intake plug (18).

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