Self-lubricating structure of gas spring

Abstract

The utility model discloses a self-lubricating structure of a gas spring, which belongs to the technical field of gas springs and is characterized by comprising a sealing pressure relief mechanism, a connecting lubricating mechanism, an opening and closing assembly and a cylinder body, the sealing pressure relief mechanism comprises a pressure relief assembly and a sealing assembly, and the pressure relief assembly can achieve the purpose that when nitrogen in the cylinder body reaches a certain pressure, the sealing assembly can seal the opening and closing assembly. The pressure relief assembly can inject nitrogen into the cylinder body to increase the content of the nitrogen in the cylinder body, the sealing assembly can achieve the effect of sliding connection of the connection lubricating mechanism, and meanwhile the sealing treatment effect can be provided for connection of the connection lubricating mechanism and the cylinder body. The connecting lubricating mechanism can achieve the effect of conducting automatic lubricating treatment on the inner wall of the cylinder body, the opening and closing assembly can achieve the effect of conducting connecting sealing treatment on the connecting lubricating mechanism, and meanwhile the lubricating assembly can be pushed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas springs, in particular to a self-lubricating structure of a gas spring. Background Art

[0002] Gas spring is an industrial accessory that can perform functions such as support, cushioning, braking, height adjustment and angle adjustment.

[0003] At present, a Chinese utility model with announcement number: CN207830442U discloses a nitrogen spring with an oil lubrication structure, including a dust seal mounting groove, a guide ring mounting groove, a lubricating oil storage groove, a dynamic seal mounting groove, and a plunger. A retainer is arranged on the outer side of the plunger, an inner dust seal is arranged between the retainer and the plunger, a front guide ring is arranged between the plunger and the retainer and below the inner dust seal, an oil storage chamber is arranged below the front guide ring, a dynamic seal is arranged below the oil storage chamber, a rear retainer is arranged below the retainer, a cylinder body is arranged on the outer side of the retainer and the rear retainer, an outer dust ring, a retainer ring and a static seal are arranged between the retainer and the cylinder body, and the beneficial effect is that a large-capacity lubricating oil storage tank is arranged in the retainer of this utility model, and when the nitrogen spring is working, the friction between the high-speed movement of the plunger and the seal and the guide ring will be reduced, thereby improving the performance and life of the nitrogen spring.

[0004] During long-term use, the existing gas springs may experience piston rod problems, which will affect the operation of the gas spring, and it is necessary to inject lubricating oil into the inner wall of the gas spring for lubrication. However, most of the methods of injecting lubricating oil into the inner wall of the gas spring are manually added, which is more troublesome. Utility Model Content

[0005] The utility model provides a self-lubricating structure of a gas spring, aiming to solve the problem that the existing gas spring will have a piston rod that is not smooth during long-term use, thereby affecting the operation of the gas spring, and then it is necessary to inject lubricating oil into the inner wall of the gas spring for lubrication. However, most of the lubricating oil is injected into the inner wall of the gas spring by artificial addition, which is a rather troublesome problem.

[0006] The utility model is implemented as follows: a self-lubricating structure of a gas spring comprises a sealing pressure relief mechanism, a connecting lubricating mechanism, an opening and closing assembly and a cylinder body, wherein the sealing pressure relief mechanism is arranged at the front and rear sides of the cylinder body, the connecting lubricating mechanism is arranged inside the cylinder body, and the opening and closing assembly is arranged at the front side of the connecting lubricating mechanism;

[0007] The sealing pressure relief mechanism comprises a pressure relief component and a sealing component. The pressure relief component is arranged at the rear side of the cylinder body, and the sealing component is arranged at the front side of the cylinder body.

[0008] In order to enable the pressure relief component to achieve the effect of relieving pressure inside the cylinder when the nitrogen in the cylinder reaches a certain pressure, thereby improving safety, the pressure relief component can also inject nitrogen into the cylinder to increase the nitrogen content in the cylinder. As a preferred self-lubricating structure of a gas spring of the utility model, the pressure relief component includes a connecting seat, a pressure relief valve and a one-way valve. The connecting seat is fixedly connected to the rear side of the cylinder, and the pressure relief valve and the one-way valve are both fixedly connected to the inner wall of the connecting seat.

[0009] In order to enable the sealing assembly to achieve the effect of sliding connection of the connecting lubrication mechanism and provide a sealing effect for the connection between the connecting lubrication mechanism and the cylinder body, a self-lubricating structure of a gas spring of the utility model is preferably used. The sealing assembly includes a bushing, a sealing gasket and a fixed seat. The bushing is fixedly connected to the inner wall of the cylinder body, the sealing gasket is fixedly connected to the inner wall of the fixed seat, the rear side of the sealing gasket is in contact with the front side of the bushing, and the fixed seat is fixedly connected to the front side of the cylinder body.

[0010] In order to enable the connection lubrication mechanism to achieve the effect of automatically lubricating the inner wall of the cylinder body, a self-lubricating structure of a gas spring of the utility model is preferably used. The connection lubrication mechanism includes a connection component and a lubrication component. The connection component is arranged inside the cylinder body, and the lubrication component is arranged inside the connection component.

[0011] In order to enable the connecting component to achieve the effect of connecting the lubrication component, a self-lubricating structure of a gas spring of the utility model is preferably used, wherein the connecting component includes a sponge pad, a piston rod and a connecting groove, the sponge pad is slidably connected to the surface of the piston rod, the piston rod is slidably connected to the inner wall of the cylinder body, and the connecting groove is opened on the front side of the piston rod.

[0012] In order to make the lubrication assembly cooperate with the connecting assembly to achieve the effect of self-lubricating the inner wall of the cylinder body, a self-lubricating structure of a gas spring of the utility model is preferably used. The lubrication assembly includes a contact plate, a sliding rod and an oil filling hole. The contact plate is fixedly connected to the rear side of the sliding rod, the rear side of the contact plate contacts the front side of the sponge pad, the sliding rod is slidably connected to the inner wall of the connecting groove, and the oil filling hole is opened on the front side of the sliding rod.

[0013] In order to enable the opening and closing component to achieve the effect of connecting and sealing the connecting lubrication mechanism, and at the same time to push the lubrication component, a self-lubricating structure of a gas spring is preferred in the utility model. The opening and closing component includes a connecting plate, a closing pad, a fixing bolt, a sealing ring and a card block. The connecting plate is fixedly connected to the front side of the sliding rod, the closing pad is fixedly connected to the rear side of the fixing bolt, the fixing bolt is bolted to the inner wall of the connecting plate, the sealing ring is fixedly connected to the surface of the card block, and the card block is fixedly connected to the front side of the fixing bolt.

[0014] In order to enable the slide groove to achieve the effect of limiting sliding connection with the contact plate, as a preferred self-lubricating structure of a gas spring of the utility model, a slide groove is opened on the surface of the piston rod, and the inner wall of the slide groove is slidably connected with the surface of the contact plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The self-lubricating structure of the gas spring is provided with a sealing pressure relief mechanism, and the sealing pressure relief mechanism includes a pressure relief component and a sealing component. Through the provision of the pressure relief component, the pressure relief component can achieve the effect of pressure relief treatment inside the cylinder when the nitrogen in the cylinder reaches a certain pressure, thereby improving safety. At the same time, the pressure relief component can also inject nitrogen into the cylinder to increase the nitrogen content in the cylinder. Through the provision of the sealing component, the sealing component can achieve the effect of sliding connection of the connecting lubrication mechanism, and at the same time can provide a sealing treatment effect for the connection between the connecting lubrication mechanism and the cylinder. Through the provision of the connecting lubrication mechanism, the connecting lubrication mechanism can achieve the effect of automatic lubrication treatment of the inner wall of the cylinder. Through the provision of the opening and closing component, the opening and closing component can achieve the effect of connecting and sealing treatment of the connecting lubrication mechanism, and at the same time can push the lubrication component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall structural diagram of the self-lubricating structure of the gas spring of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the sealing pressure relief mechanism, the connecting lubrication mechanism and the opening and closing assembly in the utility model;

[0019] Figure 3 It is a schematic diagram of the connection between the pressure relief component and the sealing component in the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of the connection assembly in the utility model;

[0021] Figure 5 It is a connection diagram of the lubrication assembly in the utility model;

[0022] Figure 6 It is a connection diagram of the opening and closing components in the utility model.

[0023] In the figure, 1. sealing pressure relief mechanism; 101. pressure relief component; 1011. connecting seat; 1012. pressure relief valve; 1013. one-way valve; 102. sealing component; 1021. bushing; 1022. sealing gasket; 1023. fixing seat; 2. connecting lubrication mechanism; 201. connecting component; 2011. sponge pad; 2012. piston rod; 2013. connecting groove; 202. lubrication component; 2021. contact plate; 2022. slide rod; 2023. oil filling hole; 3. opening and closing component; 301. connecting plate; 302. closing gasket; 303. fixing bolt; 304. sealing ring; 305. block; 4. cylinder body; 5. slide groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] See also Figure 1-6 The utility model provides a technical solution: a self-lubricating structure of a gas spring, comprising a sealing pressure relief mechanism 1, a connecting lubricating mechanism 2, an opening and closing component 3 and a cylinder body 4, wherein the sealing pressure relief mechanism 1 is arranged at the front and rear sides of the cylinder body 4, the connecting lubricating mechanism 2 is arranged inside the cylinder body 4, and the opening and closing component 3 is arranged at the front side of the connecting lubricating mechanism 2;

[0027] The sealing pressure relief mechanism 1 comprises a pressure relief component 101 and a sealing component 102 . The pressure relief component 101 is arranged at the rear side of the cylinder body 4 , and the sealing component 102 is arranged at the front side of the cylinder body 4 .

[0028] In this embodiment: through the setting of the sealing pressure relief mechanism 1, the sealing pressure relief mechanism 1 includes a pressure relief component 101 and a sealing component 102. Through the setting of the pressure relief component 101, the pressure relief component 101 can achieve the effect of pressure relief treatment inside the cylinder body 4 when the nitrogen in the cylinder body 4 reaches a certain pressure, thereby improving safety. At the same time, the pressure relief component 101 can also inject nitrogen into the cylinder body 4 to increase the nitrogen content in the cylinder body 4. Through the setting of the sealing component 102, the sealing component 102 can achieve the effect of sliding connection of the connecting lubrication mechanism 2, and at the same time can provide a sealing treatment effect for the connection between the connecting lubrication mechanism 2 and the cylinder body 4. Through the setting of the connecting lubrication mechanism 2, the connecting lubrication mechanism 2 can achieve the effect of automatic lubrication treatment of the inner wall of the cylinder body 4. Through the setting of the opening and closing component 3, the opening and closing component 3 can achieve the effect of connecting and sealing treatment of the connecting lubrication mechanism 2, and at the same time can push the lubrication component 202.

[0029] As a technical optimization solution of the utility model, the pressure relief assembly 101 includes a connecting seat 1011, a pressure relief valve 1012 and a one-way valve 1013. The connecting seat 1011 is fixedly connected to the rear side of the cylinder body 4, and the pressure relief valve 1012 and the one-way valve 1013 are both fixedly connected to the inner wall of the connecting seat 1011.

[0030] In this embodiment: through the setting of the connecting seat 1011, the connecting seat 1011 can achieve the effect of connecting and fixing the pressure relief valve 1012 and the one-way valve 1013. Through the setting of the pressure relief valve 1012, the pressure relief valve 1012 is an existing device, which can relieve the pressure inside the cylinder body 4. Through the setting of the one-way valve 1013, the one-way valve 1013 can achieve the effect of providing conditions for injecting nitrogen into the cylinder body 4.

[0031] As a technical optimization solution of the utility model, the sealing assembly 102 includes a sleeve 1021, a sealing gasket 1022 and a fixing seat 1023, the sleeve 1021 is fixedly connected to the inner wall of the cylinder body 4, the sealing gasket 1022 is fixedly connected to the inner wall of the fixing seat 1023, the rear side of the sealing gasket 1022 contacts the front side of the sleeve 1021, and the fixing seat 1023 is fixedly connected to the front side of the cylinder body 4.

[0032] In this embodiment: through the setting of the bushing 1021, the bushing 1021 is an existing sealing guide sleeve, and through the setting of the sealing gasket 1022, the sealing gasket 1022 can cooperate with the fixing seat 1023 to achieve the effect of sliding connection of the piston rod 2012, and at the same time, the cylinder body 4 can also be sealed.

[0033] As a technical optimization solution of the present invention, the connecting and lubricating mechanism 2 includes a connecting component 201 and a lubricating component 202 . The connecting component 201 is arranged inside the cylinder body 4 , and the lubricating component 202 is arranged inside the connecting component 201 .

[0034] In this embodiment: through the setting of the connecting component 201, the connecting component 201 can achieve the effect of connecting the lubricating component 202, and through the setting of the lubricating component 202, the lubricating component 202 can be used in conjunction with the connecting component 201 to achieve the effect of self-lubricating the inner wall of the cylinder body 4.

[0035] As a technical optimization solution of the utility model, the connecting component 201 includes a sponge pad 2011, a piston rod 2012 and a connecting groove 2013, the sponge pad 2011 is slidably connected to the surface of the piston rod 2012, the piston rod 2012 is slidably connected to the inner wall of the cylinder body 4, and the connecting groove 2013 is opened on the front side of the piston rod 2012.

[0036] In this embodiment: through the setting of the sponge pad 2011, the sponge pad 2011 can absorb the lubricating oil, thereby lubricating the inner wall of the cylinder body 4, and a return spring is arranged inside the sponge pad 2011. Through the setting of the piston rod 2012, the piston rod 2012 is the piston rod 2012 used for the existing gas spring. Through the setting of the connecting groove 2013, the connecting groove 2013 can achieve the effect of sliding connection of the sliding rod 2022.

[0037] As a technical optimization solution of the utility model, the lubrication assembly 202 includes a contact plate 2021, a sliding rod 2022 and an oil filling hole 2023. The contact plate 2021 is fixedly connected to the rear side of the sliding rod 2022. The rear side of the contact plate 2021 contacts the front side of the sponge pad 2011. The sliding rod 2022 is slidably connected to the inner wall of the connecting groove 2013. The oil filling hole 2023 is opened on the front side of the sliding rod 2022.

[0038] In this embodiment: through the setting of the resistance plate 2021, the resistance plate 2021 can achieve the effect of pressing the sponge pad 2011, and through the setting of the sliding rod 2022, the sliding rod 2022 is used in conjunction with the oil filling hole 2023 to achieve the effect of storing the lubricating oil, and the lubricating oil can also be injected into the sponge pad 2011.

[0039] As a technical optimization solution of the utility model, the opening and closing component 3 includes a connecting plate 301, a closing gasket 302, a fixing bolt 303, a sealing ring 304 and a block 305. The connecting plate 301 is fixedly connected to the front side of the sliding rod 2022, the closing gasket 302 is fixedly connected to the rear side of the fixing bolt 303, the fixing bolt 303 is bolted to the inner wall of the connecting plate 301, the sealing ring 304 is fixedly connected to the surface of the block 305, and the block 305 is fixedly connected to the front side of the fixing bolt 303.

[0040] In this embodiment: by setting the connecting plate 301, the connecting plate 301 can achieve the effect of connecting and fixing the sliding rod 2022; by setting the closing pad 302, the closing pad 302 can achieve the effect of sealing the inner wall of the connecting plate 301; by setting the fixing bolt 303, the fixing bolt 303 can achieve the effect of bolting and fixing the inner wall of the connecting plate 301; by setting the sealing ring 304, the sealing ring 304 can enhance the sealing effect of the connecting plate 301; by setting the clamping block 305, the clamping block 305 can achieve the effect of connecting and fixing the fixing bolt 303.

[0041] As a technical optimization solution of the present invention, a sliding groove 5 is provided on the surface of the piston rod 2012 , and the inner wall of the sliding groove 5 is slidably connected to the surface of the abutment plate 2021 .

[0042] In this embodiment, by setting the slide groove 5 , the slide groove 5 can achieve the effect of limiting sliding connection with the contact plate 2021 .

[0043] Working principle: First, inject lubricating oil into the interior of the slide bar 2022 from the oil injection hole 2023, and then make the lubricating oil contact with the sponge pad 2011, and then bolt and fix the closing pad 302, the fixing bolt 303, the sealing ring 304 and the clamping block 305 to the inner wall of the connecting plate 301, so as to seal the oil injection hole 2023, and then inject a proper amount of nitrogen into the cylinder body 4 through the one-way valve 1013, and then it can be installed and used. During use, when the connecting plate 301 is pressed, the connecting plate 301 will press the slide bar 2022 is pressed against, thereby driving the sliding rod 2022 to squeeze the contact plate 2021 and the sponge pad 2011, so that the lubricating oil in the sponge pad 2011 will be squeezed out of the sponge pad 2011, and then automatically smeared on the inner wall of the cylinder body 4 in cooperation with the operation of the piston rod 2012, thereby completing the lubrication of the inner wall of the cylinder body 4, and then when the piston rod 2012 rebounds, the sponge pad 2011 will also rebound at the same time due to its internal return spring, so that the excess lubricating oil on the inner wall of the cylinder body 4 can be reabsorbed into the sponge pad 2011.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-lubricating structure of a gas spring, comprising a sealing pressure relief mechanism (1), a connecting lubrication mechanism (2), an opening and closing assembly (3) and a cylinder body (4), characterized in that: The sealing pressure relief mechanism (1) is arranged on the front and rear sides of the cylinder body (4), the connecting and lubricating mechanism (2) is arranged inside the cylinder body (4), and the opening and closing assembly (3) is arranged on the front side of the connecting and lubricating mechanism (2); The sealing pressure relief mechanism (1) comprises a pressure relief component (101) and a sealing component (102); the pressure relief component (101) is arranged on the rear side of the cylinder body (4), and the sealing component (102) is arranged on the front side of the cylinder body (4).

2. The self-lubricating structure of a gas spring according to claim 1, characterized in that: The pressure relief assembly (101) comprises a connecting seat (1011), a pressure relief valve (1012) and a one-way valve (1013); the connecting seat (1011) is fixedly connected to the rear side of the cylinder body (4); and the pressure relief valve (1012) and the one-way valve (1013) are both fixedly connected to the inner wall of the connecting seat (1011).

3. The self-lubricating structure of a gas spring according to claim 1, characterized in that: The sealing assembly (102) comprises a bushing (1021), a sealing gasket (1022) and a fixing seat (1023); the bushing (1021) is fixedly connected to the inner wall of the cylinder body (4); the sealing gasket (1022) is fixedly connected to the inner wall of the fixing seat (1023); the rear side of the sealing gasket (1022) contacts the front side of the bushing (1021); and the fixing seat (1023) is fixedly connected to the front side of the cylinder body (4).

4. The self-lubricating structure of a gas spring according to claim 1, characterized in that: The connecting and lubricating mechanism (2) comprises a connecting component (201) and a lubricating component (202); the connecting component (201) is arranged inside the cylinder body (4); and the lubricating component (202) is arranged inside the connecting component (201).

5. The self-lubricating structure of a gas spring according to claim 4, characterized in that: The connecting assembly (201) comprises a sponge pad (2011), a piston rod (2012) and a connecting groove (2013); the sponge pad (2011) is slidably connected to the surface of the piston rod (2012); the piston rod (2012) is slidably connected to the inner wall of the cylinder body (4); and the connecting groove (2013) is provided on the front side of the piston rod (2012).

6. The self-lubricating structure of a gas spring according to claim 4, characterized in that: The lubrication assembly (202) comprises a contact plate (2021), a slide bar (2022) and an oil filling hole (2023); the contact plate (2021) is fixedly connected to the rear side of the slide bar (2022); the rear side of the contact plate (2021) contacts the front side of the sponge pad (2011); the slide bar (2022) is slidably connected to the inner wall of the connecting groove (2013); and the oil filling hole (2023) is opened on the front side of the slide bar (2022).

7. The self-lubricating structure of a gas spring according to claim 1, characterized in that: The opening and closing assembly (3) comprises a connecting plate (301), a closing pad (302), a fixing bolt (303), a sealing ring (304) and a clamping block (305); the connecting plate (301) is fixedly connected to the front side of the sliding rod (2022); the closing pad (302) is fixedly connected to the rear side of the fixing bolt (303); the fixing bolt (303) is bolted to the inner wall of the connecting plate (301); the sealing ring (304) is fixedly connected to the surface of the clamping block (305); and the clamping block (305) is fixedly connected to the front side of the fixing bolt (303).

8. The self-lubricating structure of a gas spring according to claim 5, characterized in that: A sliding groove (5) is provided on the surface of the piston rod (2012), and the inner wall of the sliding groove (5) is slidably connected to the surface of the abutment plate (2021).

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