Sealing structure of metal end cover

Abstract

The utility model discloses a sealing structure of a metal end cover, which comprises an end cover body, one side of the end cover body close to a casing is fixedly connected with a positioning ring, the side wall of the positioning ring is provided with a sealing groove, the sealing groove is provided with a rubber sealing ring, and the sealing structure of the metal end cover further comprises an annular ring arranged in the sealing groove. The annular ring is located on the side, away from the machine shell, of the rubber sealing ring, the annular ring is made of silica gel materials, and the end cover body is provided with a pushing assembly used for pushing the annular ring. According to the utility model, through the arrangement of the annular ring, after the connection of the end cover body and the casing is completed, the rubber sealing ring is pushed to expand and deform under the action of the pushing assembly, so that the sealing performance of the connection between the end cover body and the casing is ensured; the resistance of the end cover body in the installation and insertion process and the trimming damage to the rubber sealing ring are reduced, so that the convenience of connection between the end cover body and the shell is improved, and the service life of the rubber sealing ring is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal end cap technical field, concretely is a kind of sealing structure of metal end cap. BACKGROUND

[0002] The metal end cap of motor is connected and sealed with the shell by setting sealing ring on the positioning ring near the shell, when installing and connecting the metal end cap and the shell, since sealing ring needs certain extrusion force, when sealing ring is installed in the sealing groove of positioning ring, the outer wall of sealing ring is protruded from the wall of positioning ring, when positioning ring is inserted into the shell, sealing ring is deformed by pressure and reaches sealing effect, but since part of sealing ring is protruded, not only it brings great resistance to the installation and insertion of positioning ring, leading to the difficulty of installation and disassembly of metal end cap, but also it is easy to cause the cutting edge phenomenon of sealing ring, and it is easy to cause the damage of sealing ring, thereby reducing the service life of sealing ring, and affecting the sealing performance between metal end cap and shell.

[0003] Therefore, a sealing structure of metal end cap is needed to solve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model discloses a kind of sealing structure of metal end cap, to solve the problem that sealing ring is easily damaged in installation and disassembly process in the background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of sealing structure of metal end cap, including end cap body, the end cap body is fixedly connected with positioning ring near shell side, the side wall of the positioning ring is equipped with sealing groove, the sealing groove is equipped with rubber sealing ring, further including annular ring being arranged in sealing groove, the annular ring is located at rubber sealing ring side away from shell, the annular ring is made of silica gel material, the end cap body is equipped with the pusher component for pushing annular ring.

[0006] The pusher component includes fixed hole being arranged in end cap body, the fixed hole is fixedly connected with pusher tube, the pusher tube is fixedly connected with connecting pipe on the end close to positioning ring, the end of connecting pipe away from pusher tube is communicated with sealing groove, the pusher tube is equipped with pusher plate, the pusher tube is equipped with the drive component for driving pusher plate.

[0007] The pusher tube is equipped with the guide component for guiding the movement of pusher plate, the guide component includes guide groove being arranged in the inner wall of pusher tube, the guide groove is slidably connected with guide plate, one end of the guide plate is connected with pusher plate.

[0008] The guide component is provided with two, two The guide component is symmetrically arranged.

[0009] The driving assembly comprises a cross plate fixedly connected in the pushing pipe, a threaded rod rotationally connected with the cross plate, and a pushing plate threadedly connected with the threaded rod.

[0010] The threaded rod is provided through the pushing pipe at an end away from the cross plate and is provided with a driving hole in a regular hexagonal shape.

[0011] Compared with the prior art, the present application has the advantages that:

[0012] The present application is characterized in that: the annular ring is provided, after the end cover body is connected with the shell, the pushing assembly is used to push the rubber sealing ring to expand and deform, so that the sealing property between the end cover body and the shell is ensured, the resistance of the end cover body in the installation and insertion process is reduced, the cutting damage to the rubber sealing ring is reduced, the convenience of the connection between the end cover body and the shell is improved, and the service life of the rubber sealing ring is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present application;

[0014] Figure 2 is a schematic diagram of the internal structure of the pushing assembly of the present application;

[0015] Figure 3 is Figure 2 is an enlarged view of A in the middle.

[0016] In the figure: 101, end cover body; 102, positioning ring; 103, sealing groove; 104, rubber sealing ring; 2, annular ring; 301, pushing pipe; 302, connecting pipe; 303, pushing plate; 304, fixing hole; 401, guide groove; 402, guide plate; 501, cross plate; 502, threaded rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Embodiment 1

[0019] Please refer to Figures 1-3, The sealing structure of one metal end cover in the drawing, including end cover body 101, end cover body 101 is fixedly connected with positioning ring 102 near the shell side, the side wall of positioning ring 102 is provided with sealing groove 103, sealing groove 103 is provided with rubber sealing ring 104, it also includes the annular ring 2 that is arranged in sealing groove 103, annular ring 2 is matched with sealing groove 103, annular ring 2 is located at the side of rubber sealing ring 104 away from the shell, annular ring 2 is made of silica gel material, end cover body 101 is provided with the pusher assembly for pushing annular ring 2;

[0020] It should be explained here: through the setting of annular ring 2, after the connection of end cover body 101 and shell is completed, the expansion deformation of rubber sealing ring 104 is pushed by the action of pusher assembly, so that the connection sealing between end cover body 101 and shell is ensured, and the resistance of end cover body 101 in the process of installation insertion and the cutting edge damage to rubber sealing ring 104 are reduced, so that the convenience of end cover body 101 and shell connection and the service life of rubber sealing ring 104 are improved.

[0021] Please refer to Figure 2 and Figure 3 , the pusher assembly in the drawing includes fixed hole 304 arranged in end cover body 101, fixed hole 304 is fixedly connected with pusher tube 301, one end of pusher tube 301 close to positioning ring 102 is fixedly connected with connecting pipe 302, one end of connecting pipe 302 away from pusher tube 301 is communicated with sealing groove 103, pusher tube 301 is provided with pusher plate 303, pusher tube 301 is provided with drive assembly for driving pusher plate 303;

[0022] It should be explained here: through the setting of pusher assembly, it is convenient to inject and exhaust in sealing groove 103, so that annular ring 2 is expanded or retracted under the action of gas pressure.

[0023] Please refer to Figure 2 and Figure 3 , the pusher tube 301 in the drawing is provided with a guide assembly for guiding the movement of the pusher plate 303, the guide assembly includes a guide groove 401 arranged in the inner wall of the pusher tube 301, and the guide plate 402 is slidably connected with the guide groove 401, and one end of the guide plate 402 is connected with the pusher plate 303;

[0024] It should be explained here: through the setting of guide assembly, the movement of pusher plate 303 is provided with guiding and limiting effect.

[0025] Please refer to Figure 2 and Figure 3 , the guide assembly in the drawing is provided with two, two guide assemblies are symmetrically arranged with each other;

[0026] It should be noted here that the two symmetrical guide assemblies provide more balanced and stable guide and limiting effect for the movement of the push plate 303.

[0027] Working principle: during the process of connecting the end cover body 101 with the shell, first of all, the positioning ring 102 is inserted into the positioning and guiding effect of the inner wall of the shell, so that the end cover body 101 is connected with the shell end surface, and then the end cover body 101 is connected with the shell by bolts.

[0028] After the end cover body 101 is connected with the shell, under the action of the driving assembly, the push plate 303 is driven to move in the push tube 301, so that the gas in the push tube 301 is pushed into the sealing groove 103 from the connecting pipe 302 during the movement of the push plate 303, so that the annular ring 2 is expanded under the action of gas pressure, and the rubber sealing ring 104 is further expanded and deformed, so that the rubber sealing ring 104 is in contact with the inner wall of the shell, thereby realizing the connection and sealing between the end cover body 101 and the shell. In the initial stage of connecting the end cover body 101 with the shell, the protrusion of the outer peripheral wall of the rubber sealing ring 104 in the sealing groove 103 of the positioning ring 102 is small, thereby further reducing the resistance of the end cover body 101 in the installation and insertion process and the edge damage to the rubber sealing ring 104, thereby ensuring the connection and sealing between the end cover body 101 and the shell. The convenience of connecting the end cover body 101 with the shell and the service life of the rubber sealing ring 104 are improved.

[0029] Embodiment 2

[0030] Please refer to Figure 3 , the embodiment further illustrates embodiment 1, the driving assembly in the figure includes a cross plate 501 fixedly connected in the push tube 301, the cross plate 501 is rotationally connected with a threaded rod 502, and the push plate 303 is threadedly connected with the threaded rod 502.

[0031] It should be noted here that through the setting of the driving assembly, the push plate 303 is driven to move in the push tube 301 under the thread engagement transmission effect of the threaded rod 502 and the push plate 303 and the guiding effect of the guide assembly during the rotation of the threaded rod 502.

[0032] Please refer to Figure 2 and Figure 3 , the threaded rod 502 away from the cross plate 501 in the figure is provided through the push tube 301 and is provided with a driving hole in the shape of a regular hexagon;

[0033] It should be noted here that through the driving hole in the shape of a regular hexagon, the threaded rod 502 can be rotated by using an internal hexagonal wrench.

[0034] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A sealing structure for a metal end cap, comprising: An end cover body (101), wherein a positioning ring (102) is fixedly connected to the end cover body (101) on one side close to the housing, a sealing groove (103) is provided on the side wall of the positioning ring (102), and a rubber sealing ring (104) is provided in the sealing groove (103); It is characterized by further comprising: An annular ring (2) is arranged in the sealing groove (103), and the annular ring (2) is located on the side of the rubber sealing ring (104) away from the housing. The annular ring (2) is made of silicone material, and the end cover body (101) is provided with a pushing component for pushing the annular ring (2).

2. The sealing structure of a metal end cover according to claim 1, characterized in that: The pushing assembly comprises a fixing hole (304) provided on the end cover body (101); the fixing hole (304) is fixedly connected to a pushing tube (301); an end of the pushing tube (301) close to the positioning ring (102) is fixedly connected to a connecting tube (302); an end of the connecting tube (302) away from the pushing tube (301) is communicated with the sealing groove (103); a pushing plate (303) is provided in the pushing tube (301); and a driving assembly for driving the pushing plate (303) is provided on the pushing tube (301).

3. The sealing structure of a metal end cover according to claim 2, characterized in that: The pushing tube (301) is provided with a guide assembly for guiding the movement of the pushing plate (303), and the guide assembly includes a guide groove (401) provided on the inner wall of the pushing tube (301), and the guide groove (401) is slidably connected to a guide plate (402), and one end of the guide plate (402) is connected to the pushing plate (303).

4. The sealing structure of a metal end cover according to claim 3, characterized in that: There are two guide assemblies, and the two guide assemblies are symmetrically arranged with respect to each other.

5. The sealing structure of a metal end cover according to claim 4, characterized in that: The driving assembly comprises a cross plate (501) fixedly connected to the pushing tube (301), the cross plate (501) is rotatably connected to a threaded rod (502), and the pushing plate (303) is threadedly connected to the threaded rod (502).

6. The sealing structure of a metal end cover according to claim 5, characterized in that: One end of the threaded rod (502) away from the cross plate (501) passes through the push tube (301) and is provided with a driving hole in a regular hexagonal shape.

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