Mechanical sealing structure with corrosion resistance

Abstract

The utility model relates to the technical field of mechanical sealing, in particular to a mechanical sealing structure with corrosion resistance, which comprises a sealing structure main connecting assembly and further comprises a mounting structure component, a mounting bolt is inserted into the surface of an inner ring of the mounting structure component in a limiting manner, and a sealing ring is clamped on the surface of the inner ring of the mounting structure component in a limiting manner. A piston limiting sleeve and a cushioning structure assembly are clamped on the surface of an inner ring of the protective structure assembly in a limiting manner; the protective structure assembly is fixedly connected to the surface of the outer ring of the piston limiting sleeve, the protective structure assembly is made of a metal material, and the outer layer of the protective structure assembly is plated with the anti-corrosion layer, so that the protective structure assembly can be used for a pipeline with corrosive fluid, and the fluid is sealed while the anti-corrosion layer is plated on the outer layer of the protective structure assembly. And it is ensured that fluid leakage caused by corrosion of the fluid to the sealing structure is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical seal technical field, concretely is a kind of mechanical seal structure with corrosion resistance. BACKGROUND

[0002] Mechanical seal structure is usually used in fluid pipeline, and the main role is to prevent fluid from leaking at the connection of pipeline or the end of pipeline.

[0003] The patent with announcement number CN107218396B discloses a mechanical seal structure with leaf vein-shaped groove on end face, which comprises a front end face, i.e. a sealing surface, composed of an outer ring, an inner ring, a sealing weir area, a sealing dam area and a leaf vein-shaped groove, all of which are located at different positions on the front end face, i.e. the sealing surface, of the mechanical seal structure. The leaf vein-shaped groove has one or more, and the number changes with the size of the mechanical seal structure. The leaf vein-shaped groove is composed of a first branch groove, a second branch groove, a third branch groove, a fourth branch groove and a main groove. The present application effectively improves the fluid dynamic pressure effect, reduces the side effects caused by the unevenness of the mechanical seal end face, improves the working efficiency of the mechanical seal, effectively avoids the friction failure under extreme conditions of small film thickness and small pressure difference, realizes non-contact sealing, improves wear resistance, prolongs the service life and improves the reliability of the seal.

[0004] However, most mechanical seal structures, such as the patent, are mainly used for relatively conventional fluid pipelines. For some corrosive fluids, a mechanical seal structure with corrosion resistance is needed for sealing. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a mechanical seal structure with corrosion resistance, which can be used in the pipeline of corrosive fluid to ensure that the fluid does not corrode the sealing structure and cause fluid leakage while sealing the fluid.

[0006] The technical solution for achieving the purpose of the utility model is as follows: a mechanical seal structure with corrosion resistance, comprising a sealing structure main connection assembly, further comprising: an installation structure assembly, an installation bolt is limitingly inserted into the inner ring surface of the installation structure assembly, and a sealing ring is limitingly clamped on the inner ring surface of the installation structure assembly.

[0007] A protection structure assembly, a piston limiting sleeve is limitingly clamped on the inner ring surface of the protection structure assembly, a shock absorption structure assembly, a shock absorption spring is limitingly clamped on the inner ring surface of the shock absorption structure assembly, a limiting plate is fixedly connected to the upper surface of the shock absorption spring, an installation limiting sleeve is fixedly connected to the upper surface of the limiting plate, an installation insertion plate is limitingly inserted into the inner ring surface of the installation limiting sleeve, a fixed block is fixedly connected to the side surface of the installation limiting sleeve, and a nut is arranged on the side surface of the fixed block.

[0008] Preferably, the inner ring surface of the nut is limited to insert a threaded rod, and the threaded rod is connected through the nut and the protective structure assembly.

[0009] Preferably, the nut is connected between the fixing block and the installation limiting sleeve, and the fixing block is symmetrically arranged with the vertical center line of the nut as the symmetric axis.

[0010] Preferably, the inner ring surface of the installation structure assembly is provided with an installation opening, and the installation opening is connected with the installation bolt.

[0011] Preferably, the inner ring surface of the shock absorption structure assembly is fixedly connected with a limiting insert plate, and the number of the limiting insert plate is multiple.

[0012] Preferably, the side surface of the limiting plate is provided with a clamping opening, and the size of the clamping opening and the limiting insert plate is matched with each other.

[0013] Compared with the prior art, the utility model has the following remarkable advantages:

[0014] The utility model discloses a mechanical sealing structure, which can be used for a fluid transportation pipeline with corrosion, and the piston limiting sleeve is arranged, and after the user installs the piston limiting sleeve, the user can ensure that the sealing structure is not corroded and leaked when the sealing structure is used for the pipeline with corrosion, because the protective structure assembly is of metal material, and the outer layer of the protective structure assembly is plated with a corrosion-resistant layer.

[0015] When the user uses and disassembles the mechanical sealing structure, the user needs to twist the threaded rod, and the user needs to take down the threaded rod from the nut, so that the user can take down the installation insert plate from the installation limiting sleeve, and the user can conveniently disassemble the mechanical sealing structure, the installation structure assembly and the installation bolt limited and clamped to the inner ring surface can facilitate the user to integrally install the sealing structure, and the use demand that the user can integrally install and disassemble the sealing structure is met. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be explained further in combination with the drawings and embodiments:

[0017] Figure 1 It is the front view of the utility model's three-dimensional structure;

[0018] Figure 2 It is the side view of the utility model's three-dimensional structure;

[0019] Figure 3 It is the first side sectional view of the utility model's three-dimensional structure;

[0020] Figure 4 is the mechanical sealing structure with corrosion resistance of the utility model Figure 2 A structure of the utility model is enlarged at A place in the middle;

[0021] Figure 5 is the second side sectional view of the utility model;

[0022] Figure 6 is the bottom view of the utility model;

[0023] Figure 7 is the bottom view of the utility model.

[0024] Mark explanation:

[0025] 1, sealing structure main connection assembly;2, mounting structure assembly;21, mounting bolt;22, mounting opening;23, sealing ring;3, protection structure assembly;31, piston limiting sleeve;4, shock absorbing structure assembly;41, shock absorbing spring;42, limiting plate;43, mounting limiting sleeve;44, mounting plug-in plate;45, threaded rod;46, fixed block;47, nut;48, clamping opening;49, limiting plug-in plate. Specific implementation

[0026] The utility model is described in detail below, and the technical scheme in the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] The utility model discloses a kind of mechanical sealing structures with corrosion resistance by improvement, and the technical scheme of the utility model is:

[0028] As Figures 1-7 As shown in a kind of mechanical sealing structures with corrosion resistance, including sealing structure main connection assembly 1, still include: mounting structure assembly 2, the inner circle surface of mounting structure assembly 2 is limited and is inserted with mounting bolt 21, the inner circle surface of mounting structure assembly 2 is limited and is clamped with sealing ring 23, protection structure assembly 3, the inner circle surface of protection structure assembly 3 is limited and is clamped with piston limiting sleeve 31, shock absorbing structure assembly 4, the inner circle surface of shock absorbing structure assembly 4 is limited and is clamped with shock absorbing spring 41, the upper surface of shock absorbing spring 41 is fixedly connected with limiting plate 42, the upper surface of limiting plate 42 is fixedly connected with mounting limiting sleeve 43, the inner circle surface of mounting limiting sleeve 43 is limited and is inserted with mounting plug-in plate 44, the side surface of mounting limiting sleeve 43 is fixedly connected with fixed block 46, the side surface of fixed block 46 is installed and is provided with nut 47.

[0029] Further, the inner ring surface of the nut 47 is limited to insert the threaded rod 45, and the threaded rod 45 is connected between the nut 47 and the protective structure assembly 3.

[0030] With the above technical scheme, the threaded rod 45 connected between the nut 47 and the protective structure assembly 3 can facilitate the user to connect the threaded rod 45 and the protective structure assembly 3.

[0031] Further, the nut 47 is connected between the fixing block 46 and the installation limiting sleeve 43, and the fixing block 46 is symmetrically arranged with the vertical center line of the nut 47 as the symmetric axis.

[0032] With the above technical scheme, the fixing block 46 symmetrically arranged with the vertical center line of the nut 47 as the symmetric axis can facilitate the user to stably install the nut 47 on the installation limiting sleeve 43.

[0033] Further, the inner ring surface of the installation structure assembly 2 is provided with an installation opening 22, and the installation opening 22 is connected with the installation bolt 21.

[0034] With the above technical scheme, the installation opening 22 connected with the installation bolt 21 can facilitate the user to limit the installation bolt 21.

[0035] Further, the inner ring surface of the shock absorption structure assembly 4 is fixedly connected with a limiting insert plate 49, and the limiting insert plate 49 is in plurality.

[0036] With the above technical scheme, the limiting insert plate 49 in plurality can facilitate the user to limit the use of the shock absorption structure assembly 4.

[0037] Further, the side surface of the limiting plate 42 is provided with a clamping opening 48, and the clamping opening 48 and the limiting insert plate 49 are matched in size.

[0038] With the above technical scheme, the clamping opening 48 matched in size with the limiting insert plate 49 can facilitate the user to limit the limiting plate 42 when moving up and down.

[0039] The specific working method is: when the user needs to use the sealing structure, the user installs the piston limiting sleeve 31, and then the user fixes the protective structure assembly 3 on the outer surface of the piston limiting sleeve 31. The protective structure assembly 3 is made of metal material, and the outer layer of the protective structure assembly 3 is plated with a corrosion-resistant layer, so that the user can efficiently prevent the corrosion of the outer surface of the mechanical sealing structure. The limiting plate 42 and the shock absorbing spring 41 arranged on the bottom surface of the limiting plate 42 can facilitate the user to efficiently adjust the up and down movement of the limiting plate 42 on the shock absorbing structure assembly 4. When the user uses and disassembles the mechanical sealing structure, the user needs to rotate the threaded rod 45, and the user needs to remove the threaded rod 45 from the nut 47. Therefore, the user can remove the installation plug-in plate 44 from the installation limiting sleeve 43, so that the user can conveniently disassemble the mechanical sealing structure. The installation structure assembly 2 and the installation bolt 21 limitedly connected to the inner surface thereof can facilitate the user to install the sealing structure as a whole.

[0040] The technical means disclosed by the utility model scheme is not only limited to the technical means disclosed by the above technical means, but also includes the technical scheme composed of the above technical features and equivalent replacements. The matters not covered by the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A mechanical seal structure with anticorrosion performance, comprising a seal structure main connecting assembly (1), characterized in that, Also include: The inner circle surface of the mounting structure assembly (2) is limited to plug in the mounting bolt (21), and the inner circle surface of the mounting structure assembly (2) is limited to clamp the sealing ring (23); The inner circle surface of the protection structure assembly (3) is limited to clamp the piston limiting sleeve (31); The inner circle surface of the shock absorbing structure assembly (4) is limited to clamp the shock absorbing spring (41), the upper surface of the shock absorbing spring (41) is fixedly connected with the limiting plate (42), the upper surface of the limiting plate (42) is fixedly connected with the mounting limiting sleeve (43), the inner circle surface of the mounting limiting sleeve (43) is limited to plug in the mounting plug-in plate (44), the side surface of the mounting limiting sleeve (43) is fixedly connected with the fixed block (46), and the side surface of the fixed block (46) is provided with the nut (47).

2. The mechanical seal structure with corrosion resistance according to claim 1, characterized in that: The inner circle surface of the nut (47) is limited to plug in the threaded rod (45), and the threaded rod (45) is connected between the nut (47) and the protection structure assembly (3).

3. The mechanical seal structure with corrosion resistance according to claim 2, characterized in that: The nut (47) is connected between the fixed block (46) and the mounting limiting sleeve (43), and the fixed block (46) is symmetrically arranged with the vertical center line of the nut (47) as the axis of symmetry.

4. The mechanical seal structure with corrosion resistance according to claim 1, characterized in that: The inner circle surface of the mounting structure assembly (2) is provided with the mounting opening (22), and the mounting opening (22) is connected with the mounting bolt (21).

5. The mechanical seal structure with corrosion resistance according to claim 4, characterized in that: The inner circle surface of the shock absorbing structure assembly (4) is fixedly connected with the limiting plug-in plate (49), and the number of the limiting plug-in plate (49) is more than one.

6. The mechanical seal structure with corrosion resistance according to claim 5, characterized in that: The side surface of the limiting plate (42) is provided with the clamping opening (48), and the size of the clamping opening (48) and the limiting plug-in plate (49) is matched with each other.

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