Mechanical sealing mechanism convenient to adjust

Abstract

The utility model relates to the technical field of sealing mechanisms, in particular to a mechanical sealing mechanism convenient to adjust. An adjusting mechanism is arranged on the mounting frame and comprises a sealing plate, the sealing plate is rotationally connected to the side face of the mounting frame, one end of the sealing plate is fixedly connected with a gear, a driving frame is rotationally connected to the inner side of the mounting frame, and a gear ring meshed with the gear is fixedly connected to the outer side of the driving frame. Through the arranged adjusting mechanism, a structure similar to a shutter can be formed through the stacked sealing plates, and sealing ring structures with different diameters are formed on the outer sides of the sealing plates when the sealing plates rotate, so that the sealing hole diameter of the sealing structure can be conveniently adjusted, and the sealing structure is suitable for sealing use of mounting holes with different hole diameters; according to the linkage type sealing mechanism, the sealing sleeve can be synchronously adjusted while the sealing plate is adjusted, so that the top and the bottom of the mounting hole are synchronously sealed through the sealing plate and the sealing sleeve, and the sealing effect of the mounting hole is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing mechanisms, in particular to a mechanical sealing mechanism which is convenient to adjust. Background Art

[0002] Mechanical seals, also known as mechanical seals for short, are shaft seals for rotating machinery and are widely used in equipment such as pumps, reactors, and compressors. Their function is to seal the connection between the rotating shaft and the stationary structure (such as the pump cavity) to prevent leakage. The commonly used mechanical seal structure consists of a stationary ring, a dynamic ring, an elastic element (such as a spring with a spring seat), an auxiliary sealing ring, fasteners and other components. Among them, the stationary ring is fixed on the pump body, and the dynamic ring is fixed on the rotating shaft. The end faces of the stationary ring and the dynamic ring are flat and fit each other. When the mechanical seal is working, an extremely thin liquid film is formed in the end face gap between the dynamic ring and the stationary ring, which can effectively prevent liquid leakage.

[0003] The utility model patent with the publication number CN218992345U discloses a mechanical sealing device with a locking mechanism. In this scheme, a main body is provided, and the main body is sleeved on a rotating shaft with a shaft sleeve. The main body has a spring seat, a dynamic ring seat, a spring, a dynamic ring, a first sealing ring, a static ring, a second sealing ring and a static ring seat. A plurality of receiving grooves symmetrical about the central axis of the spring seat are provided on the inner side wall of the spring seat, and a locking mechanism is provided in the receiving groove. The locking mechanism is symmetrical about the central axis of the spring seat and can lock the deformed or slightly smaller rotating shaft to ensure that the central axis of the rotating shaft coincides with the central axis of the spring seat. A bayonet extending along the extending direction of the rotating shaft is provided on the side of the spring seat close to the dynamic ring seat, and a sleeve with a shape matching the bayonet is provided on the side of the dynamic ring seat close to the spring seat. The bayonet and the sleeve cooperate to limit the position of the dynamic ring seat, so that the dynamic ring seat will not be offset.

[0004] However, there are still some shortcomings in the above scheme. Among them, the structure in the above scheme can only perform installation operations on installation holes with specific apertures, and cannot perform installation and sealing operations on installation holes with different apertures, thereby affecting the application scope of the sealing structure. In view of this, we propose a mechanical sealing mechanism that is easy to adjust. Utility Model Content

[0005] The utility model aims to provide a mechanical sealing mechanism which is easy to adjust, and solves the problem that the structure in the prior art can only perform installation operations on mounting holes with a specific aperture size, but cannot perform installation and sealing operations on mounting holes with different apertures, thereby affecting the application scope of the sealing structure.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A conveniently adjustable mechanical sealing mechanism includes a mounting frame;

[0008] The mounting frame is provided with an adjustment mechanism, which includes a sealing plate, the sealing plate is rotatably connected to the side of the mounting frame, one end of the sealing plate is fixedly connected to a gear, the inner side of the mounting frame is rotatably connected to a driving frame, and the outer side of the driving frame is fixedly connected to a gear ring that meshes with the gear.

[0009] Preferably, the sealing plate is in an arc-shaped structure, the sealing plate is distributed around the outside of the mounting frame, one end of the sealing plate is fixedly connected to a mounting shaft, the mounting shaft is rotationally connected to the mounting frame, and the other end of the sealing plate is arranged in an inclined state.

[0010] Preferably, a sealing mechanism is provided on the mounting frame, and the sealing mechanism comprises a sealing sleeve, and the sealing sleeve is connected around the middle of the outer side of the mounting frame, and both ends of the sealing sleeve are fixedly connected to the mounting frame.

[0011] Preferably, an ejection block is slidably connected to the mounting frame, the outer side of the ejection block is connected to the inner side of the sealing sleeve, and an adjustment groove corresponding to the ejection block structure is opened on the side of the mounting frame.

[0012] Preferably, an adjusting frame is slidably connected inside the mounting frame, an outer side of the adjusting frame and an inner side of the ejection block are fixedly connected with arc-shaped protrusions, and the arc-shaped protrusions are slidably connected inside the adjusting groove.

[0013] Preferably, a driving groove is provided on the inner side of the adjusting frame, and the driving groove is spirally arranged on the inner side of the adjusting frame. A driving rod is slidably connected inside the driving groove, and the driving rod is fixedly connected to the driving frame.

[0014] Preferably, a dynamic ring seat is fixedly connected to the inner side of the mounting frame, and a dynamic ring is rotatably connected to the dynamic ring seat.

[0015] By means of the above technical solution, the utility model provides a mechanical sealing mechanism that is easy to adjust. It has at least the following beneficial effects:

[0016] (1) The utility model can form a shutter-like structure through the stacked sealing plates by means of the adjustment mechanism. When the sealing plates rotate, sealing ring structures of different diameters are formed on the outside of the sealing plates, so that the sealing aperture of the sealing structure can be conveniently adjusted, thereby adapting to the sealing use of mounting holes with different apertures.

[0017] (2) The utility model provides a linkage sealing mechanism that can adjust the sealing sleeve synchronously while adjusting the sealing plate, so that the top and bottom of the mounting hole are sealed synchronously by the sealing plate and the sealing sleeve, thereby improving the sealing effect of the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 It is an enlarged schematic diagram of point A in the utility model;

[0022] Figure 4 The internal structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 5 The internal structure of the utility model is shown in FIG. Figure 2 .

[0024] In the figure: 1. mounting frame; 2. adjusting mechanism; 201. sealing plate; 202. gear; 203. driving frame; 204. gear ring; 205. mounting shaft; 3. sealing mechanism; 301. sealing sleeve; 302. ejector block; 303. adjusting groove; 304. adjusting frame; 305. arc-shaped protrusion; 306. driving groove; 307. driving rod; 4. moving ring seat. DETAILED DESCRIPTION

[0025] 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. Example 1

[0026] A mechanical seal mechanism that is easily adjustable, such as Figure 1-Figure 4As shown, it includes a mounting frame 1; an adjusting mechanism 2 is provided on the mounting frame 1, and the adjusting mechanism 2 includes a sealing plate 201, which is rotatably connected to the side of the mounting frame 1, and one end of the sealing plate 201 is fixedly connected to a gear 202, and a driving frame 203 is rotatably connected to the inner side of the mounting frame 1, and a gear ring 204 that meshes with the gear 202 is fixedly connected to the outer side of the driving frame 203, and the adjusting mechanism 2 can conveniently adjust the sealing structure at the top end of the outer side of the mounting frame 1, so that the sealing structure can adapt to the installation and use of mounting holes with different apertures, thereby improving the application scope of the mechanical sealing mechanism 3, and the sealing plate 201 is an arc-shaped structure, and the sealing plates 201 are distributed around the outer side of the mounting frame 1, and one end of the sealing plate 201 is fixedly connected to a mounting shaft 205, and the mounting shaft 205 is rotatably connected to the mounting frame 1, and the other end of the sealing plate 201 is inclined The sealing plates 201 surrounding the outside of the mounting frame 1 are stacked on each other, and the higher side of the inclined sealing plate 201 is connected to the lower side of the adjacent sealing plate 201, so that the sealing plate 201 forms a structure similar to a shutter. When the arc-shaped sealing plate 201 is rotated to different angles, the combination of the outer sides of the sealing plate 201 is a circular structure, so that the mounting hole can be sealed. The gear 202 structure is a residual tooth structure. At the same time, the gear 202 fixed on the sealing plate 201 can drive the gear 202 and the sealing plate 201 through the tooth ring 204 on the side of the driving frame 203 when the driving frame 203 rotates, so that the sealing plate 201 can rotate at the same time. The sealing plate 201 is made of rubber. The stacked sealing plates 201 can close the gap between the sealing plates 201, thereby achieving a sealing effect. Example 2

[0027] like Figure 1 , Figure 2 , Figure 5As shown, the mounting frame 1 is provided with a sealing mechanism 3, and the sealing mechanism 3 includes a sealing sleeve 301, which is connected around the middle of the outer side of the mounting frame 1, and both ends of the sealing sleeve 301 are fixedly connected to the mounting frame 1. The sealing mechanism 3 can seal the inner side of the mounting hole, thereby improving the sealing effect of the mounting hole. The sealing mechanism 3 is also an adjustable structure. The sealing effect of the mounting hole can be improved by sealing the inner side of the mounting hole through the sealing mechanism 3. The sealing sleeve 301 structure is sleeved on the outer side of the mounting frame 1, and the sealing sleeve 3 01 is made of elastic material and can be stretched and extended conveniently, so as to provide sealing effect for installation holes of different apertures. An ejector block 302 is slidably connected to the mounting frame 1. The outer side of the ejector block 302 is connected to the inner side of the sealing sleeve 301. An adjustment groove 303 corresponding to the structure of the ejector block 302 is opened on the side of the mounting frame 1. The ejector block 302 structure is slidably connected inside the adjustment groove 303. The ejector block 302 can move from the inner side of the adjustment groove 303 to the outside, and drive the sealing sleeve 301 when moving, so that the sealing The sleeve 301 is deformed and the sealing range of the sealing sleeve 301 is expanded. The mounting frame 1 is slidably connected with an adjusting frame 304. The outer side of the adjusting frame 304 and the inner side of the ejection block 302 are fixedly connected with arc-shaped protrusions 305. The arc-shaped protrusions 305 are slidably connected to the inside of the adjusting groove 303. The adjusting frame 304 structure can drive the ejection block 302 through the outer arc-shaped protrusions 305, so that when the adjusting frame 304 rises, multiple groups of ejection blocks 302 can be synchronously driven outward. The inner side of the adjusting frame 304 is provided with a driving groove 303. 6. The driving groove 306 is spirally arranged on the inner side of the adjusting frame 304. A driving rod 307 is slidably connected inside the driving groove 306. The driving rod 307 is fixedly connected to the driving frame 203. The driving groove 306 structure can cooperate with the driving rod 307, so that the driving rod 307 slides along the spiral adjusting groove 303 when the driving frame 203 rotates, and drives the adjusting frame 304 to make the adjusting frame 304 rise synchronously. A moving ring seat 4 is fixedly connected to the inner side of the mounting frame 1, and a moving ring is rotatably connected to the moving ring seat 4.

[0028] When the utility model is used, a conveniently adjustable mechanical sealing mechanism is moved to the inner side of the mounting hole to be installed, and the mounting frame 1 is fixed and then the driving frame 203 is rotated. During the continuous rotation of the driving frame 203, the gear 202 is driven to rotate by the gear ring 204, and the sealing plate 201 is rotated accordingly and adjusted to correspond to the aperture of the mounting hole. When the driving frame 203 rotates, the driving rod 307 inside the driving frame 203 slides along the driving groove 306. Since the driving frame 203 keeps a constant height during the rotation, the driving rod 307 slides along the spiral driving groove 306. When sliding, the adjusting frame 304 is driven upward. When the adjusting frame 304 moves, the ejection block 302 is driven to move outward through the arc-shaped protrusion 305 on the outside, and the sealing sleeve 301 is stretched outward. The sealing sleeve 301 then seals the inner side of the mounting hole. At the same time, since the sealing plates 201 are all made of rubber and are stacked on each other, the friction between the sealing plates 201 can prevent the sealing sleeve 301 from pushing the ejection block 302 inward due to elasticity, so that the sealing sleeve 301 remains in an open state. When the sealing plate 201 rotates and closes the mounting hole, the rotation of the driving frame 203 is stopped.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveniently adjustable mechanical sealing mechanism, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with an adjustment mechanism (2), the adjustment mechanism (2) comprising a sealing plate (201), the sealing plate (201) being rotatably connected to a side surface of the mounting frame (1), one end of the sealing plate (201) being fixedly connected to a gear (202), the inner side of the mounting frame (1) being rotatably connected to a driving frame (203), the outer side of the driving frame (203) being fixedly connected to a gear ring (204) meshing with the gear (202).

2. A conveniently adjustable mechanical sealing mechanism according to claim 1, characterized in that: The sealing plate (201) is in an arc-shaped structure, and is distributed around the outside of the mounting frame (1). One end of the sealing plate (201) is fixedly connected to a mounting shaft (205), and the mounting shaft (205) is rotationally connected to the mounting frame (1). The other end of the sealing plate (201) is arranged in an inclined state.

3. The conveniently adjustable mechanical sealing mechanism according to claim 1, characterized in that: The mounting frame (1) is provided with a sealing mechanism (3), the sealing mechanism (3) comprising a sealing sleeve (301), the sealing sleeve (301) being connected around the middle of the outer side of the mounting frame (1), and both ends of the sealing sleeve (301) being fixedly connected to the mounting frame (1).

4. The conveniently adjustable mechanical sealing mechanism according to claim 1, characterized in that: An ejection block (302) is slidably connected to the mounting frame (1), the outer side of the ejection block (302) is connected to the inner side of the sealing sleeve (301), and an adjustment groove (303) corresponding to the structure of the ejection block (302) is provided on the side of the mounting frame (1).

5. The conveniently adjustable mechanical sealing mechanism according to claim 1, characterized in that: An adjustment frame (304) is slidably connected inside the mounting frame (1), an arc-shaped protrusion (305) is fixedly connected to the outside of the adjustment frame (304) and the inside of the ejection block (302), and the arc-shaped protrusion (305) is slidably connected inside the adjustment groove (303).

6. The conveniently adjustable mechanical sealing mechanism according to claim 5, characterized in that: A driving groove (306) is provided on the inner side of the adjusting frame (304). The driving groove (306) is spirally arranged on the inner side of the adjusting frame (304). A driving rod (307) is slidably connected inside the driving groove (306). The driving rod (307) is fixedly connected to the driving frame (203).

7. The conveniently adjustable mechanical sealing mechanism according to claim 1, characterized in that: A dynamic ring seat (4) is fixedly connected to the inner side of the mounting frame (1), and a dynamic ring is rotatably connected to the dynamic ring seat (4).

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