Sealing device with quantitative metering function

Abstract

The utility model discloses a sealing device with a quantitative metering function, which belongs to the technical field of quantitative metering and is characterized by comprising a device body, a piston is arranged in the device body, the surface of the piston is in sliding connection with the inner wall of the device body, a base is arranged at the bottom of the device body, and a sealing ring is arranged on the base. A limiting mechanism is arranged in the base, and a limiting block is arranged in the device body; the limiting mechanism comprises a fixing plate, two sealing gaskets and a connecting column, and the problems that when most existing sealing devices for quantitative metering are used for overhauling and replacing sealing rings, the sealing devices for quantitative metering are disassembled firstly, then structures such as pistons are taken down, then the sealing rings are taken out of sealing grooves through tools, and the sealing rings are damaged are solved. However, most of the existing tools can scratch the inner wall of the sealing groove, so that the sealing performance of the sealing ring to the sealing groove is reduced, and liquid is easy to seep from the sealing device for quantitative metering.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative metering, in particular to a sealing device for quantitative metering. Background Art

[0002] A sealing device for quantitative metering is a component or combination of components used to prevent fluid or solid particles from leaking from adjacent joint surfaces or to prevent external impurities such as dust and moisture from invading the interior of a machine or equipment.

[0003] When inspecting and replacing the sealing ring of most existing quantitative metering sealing devices, the quantitative metering sealing device is first disassembled, and then the piston and other structures are removed. Then, the sealing ring is taken out from the inside of the sealing groove using tools. However, most of the existing tools will scratch the inner wall of the sealing groove, thereby reducing the sealing performance of the sealing ring to the sealing groove, which makes it easy for liquid to seep out of the quantitative metering sealing device. Utility Model Content

[0004] The utility model provides a sealing device for quantitative metering, aiming to solve the problem that when the sealing ring of most existing sealing devices for quantitative metering is inspected and replaced, the sealing device for quantitative metering is first disassembled, then the piston and other structures are removed, and then the sealing ring is taken out from the inside of the sealing groove by using a tool, but most of the existing tools will scratch the inner wall of the sealing groove, thereby reducing the sealing performance of the sealing ring to the sealing groove, and easily causing liquid to seep out of the sealing device for quantitative metering.

[0005] The utility model is implemented as follows: a sealing device for quantitative metering comprises a device body, a piston is arranged inside the device body, the surface of the piston is slidably connected with the inner wall of the device body, a base is arranged at the bottom of the device body, a limiting mechanism is arranged inside the base, and a limiting block is arranged inside the device body;

[0006] The limiting mechanism includes a fixing plate, two sealing pads and a connecting column, the surface of the fixing plate is fixedly connected to the inside of the sealing pad, the bottom of the fixing plate is fixedly connected to the top of the connecting column, and the surface of the connecting column is slidably connected to the inside of the base.

[0007] In order to achieve the effect of limiting the sealing ring, as a preferred sealing device with quantitative metering of the utility model, a sealing groove is opened on the top of the base, a sealing ring is arranged inside the sealing groove, and the bottom of the limiting block contacts the top of the sealing ring.

[0008] In order to facilitate the movement of the sealing ring, as a preferred sealing device with quantitative metering of the utility model, the top of the fixed plate passes through the sealing groove and contacts the bottom of the sealing gasket, and the surface of the sealing gasket is in close contact with the inner wall of the sealing groove.

[0009] In order to achieve the effect of fixing the connecting column, as a preferred sealing device with quantitative metering of the utility model, the base is internally slidably connected with a fixing block, the top of the fixing block is fixedly connected to the bottom of the connecting column, and the bottom of the fixing block is fixedly connected with bolts.

[0010] In order to facilitate the movement of the bolt, as a preferred sealing device with quantitative metering of the utility model, a cylinder is provided at the bottom of the base, the top of the cylinder extends to the interior of the base and is rotatably connected to the interior of the base, and the bottom of the bolt extends to the interior of the cylinder and is connected to the internal thread of the cylinder.

[0011] In order to achieve the effect of limiting the rotating cap, as a preferred sealing device with quantitative metering of the utility model, a rotating cap is provided at the bottom of the base, the bottom of the base extends to the interior of the rotating cap, and the interior of the rotating cap is fixedly connected to the bottom of the cylinder.

[0012] In order to achieve the effect of conveniently rotating the rotating cap, as a preferred sealing device with quantitative metering of the utility model, the interior of the rotating cap is fixedly connected with a bearing, and the surface of the inner wall base of the bearing is rotatably connected.

[0013] In order to achieve the effect of connecting the device body and the base, as a preferred sealing device with quantitative metering of the utility model, four limit bolts are arranged inside the device body, the bottom of the limit bolt passes through the base and extends to the bottom of the base, and the surface of the limit bolt is threadedly connected to the inner wall of the base.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The quantitative metering sealing device can conveniently move the piston inside the device body by arranging the piston inside the device body, so that the bottom of the limit block contacts the top of the base, so that the limit block can assist in sealing the inside of the base, and the fixing plate is fixed to the top of the connecting column, so that the connecting column can conveniently drive the fixing plate to move inside the base, thereby conveniently allowing the sealing gasket to seal the inside of the base, thereby solving the problem that when most existing quantitative metering sealing devices are overhauled and replaced with sealing rings, the quantitative metering sealing device is first disassembled, and then the piston and other structures are removed, and then the sealing ring is taken out from the inside of the sealing groove with a tool, but most of the existing tools will scratch the inner wall of the sealing groove, thereby reducing the sealing performance of the sealing ring to the sealing groove, and easily causing liquid to seep out of the quantitative metering sealing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is the overall structural diagram of the sealing device for quantitative metering of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional connection between the cylinder and the rotating cap in the utility model;

[0018] Figure 3 It is a three-dimensional connection schematic diagram of the limiting mechanism in the utility model;

[0019] Figure 4 It is a three-dimensional connection diagram of the sealing ring and the sealing groove in the utility model;

[0020] Figure 5 It is a three-dimensional connection schematic diagram of the piston and the device body in the utility model.

[0021] In the figure, 1. device body; 2. piston; 3. base; 4. rotating cap; 5. bearing; 6. cylinder; 7. limiting mechanism; 701. fixing plate; 702. sealing gasket; 703. connecting column; 8. fixing block; 9. bolt; 10. sealing groove; 11. sealing ring; 12. limiting block; 13. limiting bolt. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] See also Figure 1-5 The utility model provides a technical solution: a sealing device for quantitative metering, comprising a device body 1, a piston 2 is arranged inside the device body 1, the surface of the piston 2 is slidably connected to the inner wall of the device body 1, a base 3 is arranged at the bottom of the device body 1, a limited position mechanism 7 is arranged inside the base 3, and a limited position block 12 is arranged inside the device body 1;

[0025] The limiting mechanism 7 includes a fixed plate 701, two sealing pads 702 and a connecting column 703. The surface of the fixed plate 701 is fixedly connected to the inside of the sealing pad 702, the bottom of the fixed plate 701 is fixedly connected to the top of the connecting column 703, and the surface of the connecting column 703 is slidably connected to the inside of the base 3.

[0026] In this embodiment: by setting the piston 2 inside the device body 1, the piston 2 can be easily moved inside the device body 1, so that the bottom of the limit block 12 contacts the top of the base 3, and the limit block 12 can assist in sealing the inside of the base 3. The fixing plate 701 is fixed on the top of the connecting column 703, and the connecting column 703 can conveniently drive the fixing plate 701 to move inside the base 3, thereby making it convenient for the sealing gasket 702 to seal the inside of the base 3.

[0027] As a technical optimization solution of the utility model, a sealing groove 10 is opened on the top of the base 3 , a sealing ring 11 is arranged inside the sealing groove 10 , and the bottom of the limit block 12 contacts the top of the sealing ring 11 .

[0028] In this embodiment, by making the bottom of the limiting block 12 contact with the top of the sealing ring 11 , the limiting block 12 can limit the sealing ring 11 , thereby achieving the effect of limiting the sealing ring 11 .

[0029] As a technical optimization solution of the present invention, the top of the fixing plate 701 passes through the sealing groove 10 and contacts the bottom of the sealing gasket 702 , and the surface of the sealing gasket 702 is in close contact with the inner wall of the sealing groove 10 .

[0030] In this embodiment: by making the top of the fixing plate 701 pass through the sealing groove 10 and contact with the bottom of the sealing gasket 702, the fixing plate 701 can easily drive the sealing ring 11 to move inside the sealing groove 10 through the sealing gasket 702, thereby achieving the effect of facilitating the movement of the sealing ring 11.

[0031] As a technical optimization solution of the utility model, the base 3 is internally slidably connected with a fixing block 8, the top of the fixing block 8 is fixedly connected to the bottom of the connecting column 703, and the bottom of the fixing block 8 is fixedly connected with a bolt 9.

[0032] In this embodiment, the connecting column 703 can be fixed by fixing the bottom of the connecting column 703 to the top of the fixing block 8, thereby achieving the effect of fixing the connecting column 703.

[0033] As a technical optimization solution of the utility model, a cylinder 6 is provided at the bottom of the base 3, the top of the cylinder 6 extends to the interior of the base 3 and is rotatably connected to the interior of the base 3, and the bottom of the bolt 9 extends to the interior of the cylinder 6 and is threadedly connected to the interior of the cylinder 6.

[0034] In this embodiment, by threading the surface of the bolt 9 with the inner wall of the cylinder 6 , the bolt 9 can be easily moved inside the cylinder 6 , thereby achieving the effect of facilitating the movement of the bolt 9 .

[0035] As a technical optimization solution of the utility model, a rotating cap 4 is provided at the bottom of the base 3 , the bottom of the base 3 extends to the inside of the rotating cap 4 , and the inside of the rotating cap 4 is fixedly connected to the bottom of the cylinder 6 .

[0036] In this embodiment, by fixing the inside of the rotating cap 4 to the bottom of the cylinder 6 , the cylinder 6 can support and limit the rotating cap 4 , thereby achieving the effect of limiting the rotating cap 4 .

[0037] As a technical optimization solution of the utility model, a bearing 5 is fixedly connected inside the rotating cap 4, and the bearing 5 is rotatably connected to the surface of the inner wall base 3.

[0038] In this embodiment, by rotatably connecting the surface of the inner wall base 3 of the bearing 5 , the rotating cap 4 can be conveniently rotated through the bearing 5 , thereby achieving the effect of facilitating the rotation of the rotating cap 4 .

[0039] As a technical optimization solution of the utility model, four limit bolts 13 are arranged inside the device body 1, the bottom of the limit bolt 13 passes through the base 3 and extends to the bottom of the base 3, and the surface of the limit bolt 13 is threadedly connected to the inner wall of the base 3.

[0040] In this embodiment, by threading the surface of the limit bolt 13 with the inner wall of the base 3 , the device body 1 and the base 3 can be connected and fixed through the limit bolt 13 , thereby achieving the effect of connecting the device body 1 and the base 3 .

[0041] Working principle: First, move the device body 1 to a suitable position on the workbench, use a tool to drive the limit bolt 13 to move inside the base 3, and then cancel the connection between the device body 1 and the base 3, then move the piston 2 upward inside the device body 1, so that the piston 2 is taken out and placed stably, which is convenient for testing and maintenance of the piston 2, move the limit block 12, so that the bottom of the limit block 12 is away from the top of the sealing ring 11, and then rotate the rotating cap 4, so that the rotating cap 4 rotates on the surface of the base 3 through the bearing 5, so that the rotating cap 4 drives the cylinder 6 to rotate inside the base 3, so that the cylinder 6 drives the bolt 9 to rotate, and the bolt 9 is limited by the fixed block 8 and moves upward inside the cylinder 6, so that the bolt 9 drives the fixed block 8 to move inside the base 3, so that the fixed Block 8 drives the connecting column 703 to move, so that the connecting column 703 drives the fixing plate 701 to move to the inside of the sealing groove 10, and the fixing plate 701 drives the sealing gasket 702 to push the sealing ring 11 inside the sealing groove 10, thereby moving the sealing ring 11 from the inside of the sealing groove 10, which can avoid scratching the inner wall of the sealing groove 10 with tools, thereby affecting the sealing performance of the sealing groove 10. This solves the problem that most of the existing quantitative metering sealing devices first disassemble the quantitative metering sealing device when repairing and replacing the sealing ring 11, and then remove the piston 2 and other structures, and then use tools to take the sealing ring 11 out of the sealing groove 10, but most of the existing tools will scratch the inner wall of the sealing groove 10, thereby reducing the sealing performance of the sealing ring 11 to the sealing groove 10, and easily causing liquid to seep out of the quantitative metering sealing device.

[0042] 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 sealing device for quantitative metering, comprising a device body (1), characterized in that: A piston (2) is arranged inside the device body (1), the surface of the piston (2) is slidably connected to the inner wall of the device body (1), a base (3) is arranged at the bottom of the device body (1), a limiting mechanism (7) is arranged inside the base (3), and a limiting block (12) is arranged inside the device body (1); The limiting mechanism (7) comprises a fixing plate (701), two sealing pads (702) and a connecting column (703); the surface of the fixing plate (701) is fixedly connected to the inside of the sealing pad (702); the bottom of the fixing plate (701) is fixedly connected to the top of the connecting column (703); and the surface of the connecting column (703) is slidably connected to the inside of the base (3).

2. A sealing device for quantitative metering according to claim 1, characterized in that: A sealing groove (10) is provided at the top of the base (3), a sealing ring (11) is provided inside the sealing groove (10), and the bottom of the limit block (12) contacts the top of the sealing ring (11).

3. A sealing device for quantitative metering according to claim 1, characterized in that: The top of the fixing plate (701) passes through the sealing groove (10) and contacts the bottom of the sealing gasket (702), and the surface of the sealing gasket (702) is in close contact with the inner wall of the sealing groove (10).

4. A sealing device for quantitative metering according to claim 1, characterized in that: A fixing block (8) is slidably connected inside the base (3), the top of the fixing block (8) is fixedly connected to the bottom of the connecting column (703), and the bottom of the fixing block (8) is fixedly connected with a bolt (9).

5. A sealing device for quantitative metering according to claim 4, characterized in that: A cylinder (6) is provided at the bottom of the base (3); the top of the cylinder (6) extends into the interior of the base (3) and is rotatably connected to the interior of the base (3); and the bottom of the bolt (9) extends into the interior of the cylinder (6) and is threadably connected to the interior of the cylinder (6).

6. A sealing device for quantitative metering according to claim 1, characterized in that: A rotating cap (4) is provided at the bottom of the base (3), the bottom of the base (3) extends to the interior of the rotating cap (4), and the interior of the rotating cap (4) is fixedly connected to the bottom of the cylinder (6).

7. A sealing device for quantitative metering according to claim 6, characterized in that: A bearing (5) is fixedly connected inside the rotating cap (4), and the surface of the inner wall base (3) of the bearing (5) is rotatably connected.

8. The sealing device for quantitative metering according to claim 1, characterized in that: Four limit bolts (13) are arranged inside the device body (1), the bottom of the limit bolts (13) passes through the base (3) and extends to the bottom of the base (3), and the surface of the limit bolts (13) is threadedly connected to the inner wall of the base (3).

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