Oil seal integrated mechanical sealing device

Abstract

The utility model relates to the technical field of mechanical sealing, in particular to an oil seal integrated mechanical sealing device. The device comprises a first metal pipe, a second metal pipe is in threaded connection with the interior of the first metal pipe, a sealing assembly is arranged in the first metal pipe and comprises a fixing ring, the fixing ring is fixedly connected to the inner wall of the first metal pipe, the top side of the fixing ring is fixedly connected with an extrusion spring, and the other end of the extrusion spring is fixedly connected with a clamping ring; and a clamping rubber ring is clamped on the top side of the clamping ring. The rotating nut is rotated to drive the second metal pipe to rotate in the first metal pipe, a flat rubber ring in the sealing assembly is extruded at the same time, an extrusion spring sequentially extrudes a clamping ring, a clamping rubber ring and the flat rubber ring, and under the action of two extrusion forces of the extrusion spring and the second metal pipe, the second metal pipe can be sealed. Therefore, the joint of the second metal pipe and the first metal pipe can be sealed, and the sealing effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seals, in particular to an oil seal integrated mechanical seal device. Background Art

[0002] A mechanical seal is a shaft sealing device for rotating machinery. It consists of at least one pair of end faces perpendicular to the axis of rotation, which are kept in contact and slide relative to each other under the action of fluid pressure, the elastic force (or magnetic force) of a compensation mechanism, and the cooperation of auxiliary seals to prevent fluid leakage.

[0003] Poor mechanical seals can lead to leakage at the seal, causing the working medium (such as liquid, gas, etc.) inside the equipment to be lost, which will reduce the working efficiency of the equipment, resulting in a decrease in the output flow and pressure of the pump, affecting its normal conveying function. Therefore, an oil seal integrated mechanical seal device is proposed. Utility Model Content

[0004] The purpose of the present invention is to provide an oil-seal integrated mechanical sealing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides an oil-seal integrated mechanical sealing device, comprising a first metal tube, the first metal tube being internally threadedly connected to a second metal tube, a sealing assembly being arranged in the first metal tube, the sealing assembly comprising a fixing ring, the fixing ring being fixedly connected to the inner wall of the first metal tube, an extrusion spring being fixedly connected to the top side of the fixing ring, a clamping ring being fixedly connected to the other end of the extrusion spring, a clamping rubber ring being clamped to the top side of the clamping ring, and the clamping rubber ring being in sealing contact with the inner wall of the first metal tube, and a flat rubber ring being sleeved on the clamping rubber ring.

[0006] As a further improvement of the present technical solution, the first metal tube is provided with a flow rate regulating assembly, and the flow rate regulating assembly includes a sliding tube, one end of the sliding tube is fixedly connected to the bottom side of the clamping ring, and a plurality of fixing rods are fixedly installed on the inner wall of the first metal tube, and the other ends of the plurality of fixing rods are fixedly connected to a frustum.

[0007] As a further improvement of the present technical solution, a first fixing ring is fixedly installed on the outer side of the first metal tube near the second metal tube, and a second fixing ring is fixedly installed on the outer side of the second metal tube near the first fixing ring. Multiple fixing holes are provided on the first fixing ring and the second fixing ring near the edge.

[0008] As a further improvement of the present technical solution, bolts are passed through the two fixing holes on the first fixing ring and the second fixing ring, and the two fixing holes on the first fixing ring and the second fixing ring correspond to each other. At the same time, a fixing nut is threadedly connected to the outer side of the bolt, and the fixing nut is located at the bottom of the first fixing ring.

[0009] As a further improvement of the present technical solution, a rotating nut is fixedly installed on the outer side of the second metal tube, and the rotating nut is used to drive the second metal tube to rotate inside the first metal tube.

[0010] As a further improvement of this technical solution, when the second metal tube rotates the first metal tube, the second metal tube squeezes the flat rubber ring, and at the same time drives the clamping rubber ring and the clamping ring to squeeze, so that the sliding tube slides in the first metal tube.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the oil seal integrated mechanical seal device, the second metal tube is driven to rotate in the first metal tube by rotating the rotating nut, and at the same time, the flat rubber ring in the sealing assembly is squeezed, and then the squeezing spring squeezes the clamping ring, the clamping rubber ring and the flat rubber ring in turn. Under the action of the two squeezing forces of the squeezing spring and the second metal tube, the connection between the second metal tube and the first metal tube can be sealed, thereby achieving a sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the second metal tube structure of the utility model;

[0015] Figure 3 This is a schematic cross-sectional structural diagram of the first metal tube of the utility model;

[0016] Figure 4 This is a schematic diagram of the exploded structure of the sealing component of the utility model.

[0017] The meaning of each number in the figure is:

[0018] 1. First metal tube; 2. Second metal tube; 3. First fixing ring; 4. Second fixing ring; 5. Bolt; 6. Rotating nut; 7. Sealing assembly; 71. Fixing ring; 72. Extrusion spring; 73. Snap ring; 74. Snap rubber ring; 75. Flat rubber ring; 8. Flow rate adjustment assembly; 81. Sliding tube; 82. Fixing rod; 83. Cone. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] Example 1

[0022] See also Figure 1-Figure 4As shown, this embodiment provides an oil seal integrated mechanical sealing device, including a first metal tube 1, the first metal tube 1 is internally threadedly connected to the second metal tube 2, so that the second metal tube 2 can rotate in the first metal tube 1, a first fixing ring 3 is fixedly installed on the outer side of the first metal tube 1 near the second metal tube 2, and a second fixing ring 4 is fixedly installed on the outer side of the second metal tube 2 near the first fixing ring 3, a plurality of fixing holes are opened on the first fixing ring 3 and the second fixing ring 4 near the edge, and bolts 5 pass through the two fixing holes on the first fixing ring 3 and the second fixing ring 4, and the two fixing holes on the first fixing ring 3 and the second fixing ring 4 correspond to each other, and a fixing nut is threadedly connected to the outer side of the bolt 5, and the fixing nut is located at the bottom of the first fixing ring 3, through the cooperation of the first fixing ring 3 and the second fixing ring 4, and then through the cooperation of the bolt 5 and the fixing nut, the second metal tube 2 can be fixed in the first metal tube 1, and a rotating nut 6 is fixedly installed on the outer side of the second metal tube 2, and the rotating nut 6 is used to drive the second metal tube 2 to rotate in the first metal tube 1. The nut 6 is convenient for the staff to rotate the second metal tube 2. A sealing component 7 is provided in the first metal tube 1. The sealing component 7 ensures that the contact position of the second metal tube 2 and the first metal tube 1 is in a sealed state to prevent liquid from seeping out of the connection between the second metal tube 2 and the first metal tube 1. The sealing component 7 includes a fixing ring 71, which is fixedly connected to the inner wall of the first metal tube 1. The top side of the fixing ring 71 is fixedly connected to an extrusion spring 72. The fixing ring 71 can ensure that the extrusion spring 72 is installed in the first metal tube 1, and the extrusion spring 72 is installed in the first metal tube 1. The other end of the spring 72 is fixedly connected to a clamping ring 73, and a clamping rubber ring 74 is clamped on the top side of the clamping ring 73, and the clamping rubber ring 74 is in sealing contact with the inner wall of the first metal tube 1. A flat rubber ring 75 is sleeved on the clamping rubber ring 74. At the same time, the extrusion spring 72 squeezes the clamping ring 73, the clamping rubber ring 74 and the flat rubber ring 75 in turn. Under the action of the two extrusion forces of the extrusion spring 72 and the second metal tube 2, the connection between the second metal tube 2 and the first metal tube 1 can be sealed, thereby achieving a sealing effect.

[0023] The first metal tube 1 is provided with a flow rate regulating assembly 8, through which the flow rate regulating assembly 8 can be used to control the flow rate and size in the first metal tube 1. The flow rate regulating assembly 8 includes a sliding tube 81, one end of the sliding tube 81 is fixedly connected to the bottom side of the clamping ring 73, and a plurality of fixing rods 82 are fixedly installed on the inner wall of the first metal tube 1. The other ends of the plurality of fixing rods 82 are fixedly connected to a round table 83, and the round table 83 can be fixed in the first metal tube 1 through the plurality of fixing rods 82. When the second metal tube 2 rotates in the first metal tube 1, the second metal tube 2 squeezes the flat rubber ring 75, and at the same time drives the clamping rubber ring 74 and the clamping ring 73 to squeeze, so that the sliding tube 81 slides in the first metal tube 1. When the sliding tube 81 moves vertically downward, the gap between the sliding tube 81 and the round table 83 gradually becomes smaller, thereby achieving the effect of controlling the flow rate and size of the liquid.

[0024] When the oil seal integrated mechanical seal device of this embodiment is used, the second metal tube 2 is driven to rotate in the first metal tube 1 by rotating the rotating nut 6. At the same time, the first metal tube 1 squeezes the flat rubber ring 75, and the squeezing spring 72 squeezes the clamping ring 73, the clamping rubber ring 74 and the flat rubber ring 75 in sequence. Under the action of the squeezing force of the squeezing spring 72 and the second metal tube 2, the connection between the second metal tube 2 and the first metal tube 1 can be sealed, thereby achieving a sealing effect. At the same time, when the second metal tube 2 rotates, the flat rubber ring 75, the clamping rubber ring 74 and the sliding tube 81 on the clamping ring 73 can be moved toward the round table 83 in sequence. When the sliding tube 81 moves vertically downward, the gap between the sliding tube 81 and the round table 83 gradually becomes smaller, thereby controlling the flow rate and size of the liquid. When the second metal tube 2 rotates to the corresponding position, the first fixing ring 3 and the second fixing ring 4 are fixed by the bolt 5 and the fixing nut, and the second metal tube 2 is fixed in the first metal tube 1.

[0025] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-seal integrated mechanical sealing device, comprising a first metal tube (1), wherein the first metal tube (1) is internally threadedly connected to a second metal tube (2), characterized in that: A sealing assembly (7) is provided in the first metal tube (1), and the sealing assembly (7) comprises a fixing ring (71), the fixing ring (71) is fixedly connected to the inner wall of the first metal tube (1), the top side of the fixing ring (71) is fixedly connected to an extrusion spring (72), the other end of the extrusion spring (72) is fixedly connected to a clamping ring (73), the top side of the clamping ring (73) is clamped with a clamping rubber ring (74), and the clamping rubber ring (74) is in sealing contact with the inner wall of the first metal tube (1), and a flat rubber ring (75) is sleeved on the clamping rubber ring (74).

2. The oil seal integrated mechanical seal device according to claim 1, characterized in that: The first metal tube (1) is provided with a flow rate regulating assembly (8), the flow rate regulating assembly (8) comprising a sliding tube (81), one end of the sliding tube (81) being fixedly connected to the bottom side of the clamping ring (73), a plurality of fixing rods (82) being fixedly mounted on the inner wall of the first metal tube (1), and the other ends of the plurality of fixing rods (82) being fixedly connected to a frustum (83).

3. The oil seal integrated mechanical sealing device according to claim 1, characterized in that: A first fixing ring (3) is fixedly mounted on the outer side of the first metal tube (1) near the second metal tube (2), and a second fixing ring (4) is fixedly mounted on the outer side of the second metal tube (2) near the first fixing ring (3). A plurality of fixing holes are provided on the first fixing ring (3) and the second fixing ring (4) near their edges.

4. The oil seal integrated mechanical seal device according to claim 3, characterized in that: Bolts (5) are passed through the two fixing holes on the first fixing ring (3) and the second fixing ring (4), and the two fixing holes on the first fixing ring (3) and the second fixing ring (4) correspond to each other. At the same time, a fixing nut is threadedly connected to the outer side of the bolt (5), and the fixing nut is located at the bottom of the first fixing ring (3).

5. The oil seal integrated mechanical sealing device according to claim 1, characterized in that: A rotating nut (6) is fixedly mounted on the outer side of the second metal tube (2), and the rotating nut (6) is used to drive the second metal tube (2) to rotate inside the first metal tube (1).

6. The oil seal integrated mechanical sealing device according to claim 2, characterized in that: When the second metal tube (2) rotates on the first metal tube (1), the second metal tube (2) squeezes the flat rubber ring (75), and at the same time drives the clamping rubber ring (74) and the clamping ring (73) to squeeze, so that the sliding tube (81) slides on the first metal tube (1).

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