Detachable mechanical sealing structure of sealing ring for pump

Abstract

The utility model particularly relates to the technical field of pump installation, and discloses a detachable mechanical sealing structure of a sealing ring for a pump, which comprises a workbench semi-ring seat I, a semi-ring seat II, a sealing assembly I and a sealing assembly II, the semi-ring seat I is rotationally connected to the end part of the semi-ring seat II, and notches I are formed in two ends of the semi-ring seat I and two ends of the semi-ring seat II; the second sealing assembly comprises a second sealing belt clamped in the first notch, and two second notches are symmetrically formed in the inner side wall of the first semi-ring base and the inner side wall of the second semi-ring base. Through the arrangement of the first semi-ring seat, the second semi-ring seat, the first sealing assembly, the second sealing assembly, the mounting groove and the bolt, the first sealing assembly comprises a first sealing belt clamped in the second notch, the second sealing assembly comprises a first sealing belt clamped in the first notch, and the first sealing belt and the second sealing belt are each of an O-shaped opening structure; the convenience and efficiency of replacement and maintenance of the first sealing belt and the second sealing belt are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pump installation, and particularly relates to a detachable mechanical seal structure for a pump sealing ring. Background Art

[0002] A detachable mechanical seal structure for a pump sealing ring refers to a device that plays a dynamic sealing role when installed and operated in pump equipment, and is a component that prevents the fluid medium in the pump volute from flowing out of the pump through the pump shaft.

[0003] The existing mechanical seal device of a pump usually includes a circular ring mounting seat and a sealing ring. A clamping groove is formed inside the circular ring mounting seat for the sealing ring to be clamped. The mechanical seal is fixed by being fastened to one end of the pump mounting seat through bolts, and then the pump shaft is inserted on the outer surface of the circular ring mounting seat to complete the installation of the mechanical seal.

[0004] When installing the existing mechanical seal structure of a pump sealing ring, usually, the pump shaft and other components need to be completely disassembled first, and then the circular ring mounting seat is disassembled, which increases the difficulty of replacing and maintaining the sealing ring and reduces the maintenance efficiency of the sealing ring. Summary of the Utility Model

[0005] The utility model provides a detachable mechanical seal structure for a pump sealing ring, aiming to solve the problem that when installing the existing mechanical seal structure of a pump sealing ring, usually, the pump shaft and other components need to be completely disassembled first, and then the circular ring mounting seat is disassembled, which increases the difficulty of replacing and maintaining the sealing ring and reduces the maintenance efficiency of the sealing ring.

[0006] The utility model is realized as follows. A detachable mechanical seal structure for a pump sealing ring includes a workbench half-ring seat one, a half-ring seat two, a sealing component one, and a sealing component two. The half-ring seat one is rotatably connected to the end of the half-ring seat two. Both ends of the half-ring seat one and the half-ring seat two are provided with notch one. The sealing component two includes a sealing band two clamped inside the notch one. Two notch two are symmetrically formed on the inner side walls of the half-ring seat one and the half-ring seat two. The sealing component one includes a sealing band one clamped inside the notch two. Two groups of mounting grooves are symmetrically formed on the side walls of the half-ring seat one and the half-ring seat two. Bolts are installed inside the two groups of mounting grooves, and threaded holes are formed on the inner side walls of the bolts for the bolts to be threadedly connected.

[0007] Preferably, two support seats are symmetrically fixed on the side wall of the half-ring seat one close to the half-ring seat two. A groove is formed on the side wall of the half-ring seat two close to the support seats. The external dimension of the support seat is adapted to the internal dimension of the groove, which improves the rotational stability of the half-ring seat one and the half-ring seat two.

[0008] Preferably, both the first sealing belt and the second sealing belt are made of rubber. The outer dimensions of the first sealing belt and the second sealing belt are respectively adapted to the inner dimensions of the second notch and the first notch, improving the stability of the snap connection between the first sealing belt and the second sealing belt.

[0009] Preferably, a first clamping groove is formed at one end of the first sealing belt, and a second clamping groove is formed at the other end of the first sealing belt. The inner dimension of the second clamping groove is adapted to the outer dimension of the end part of the first sealing belt, improving the sealing performance of the joint of the first sealing belt.

[0010] Preferably, a third clamping groove is formed at one end of the second sealing belt, and a fourth clamping groove is formed at the other end of the second sealing belt. The inner dimension of the fourth clamping groove is adapted to the outer dimension of one end of the first sealing belt, improving the sealing performance of the joint of the third clamping groove.

[0011] Preferably, a limiting seat is fixedly arranged on the inner side wall of the groove. A pin rod is rotatably connected inside the limiting seat, and both ends of the pin rod are fixedly arranged on the side wall of the support seat in sequence, realizing the rotation of the first half-ring seat and the second half-ring seat.

[0012] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0013] Firstly, by providing the first half-ring seat, the second half-ring seat, the first sealing assembly, the second sealing assembly, the installation groove and the bolt, the first sealing assembly includes a first sealing belt clamped inside the second notch, and the second sealing assembly includes a first sealing belt clamped inside the first notch. Both the first sealing belt and the second sealing belt are of O-shaped opening structures, improving the convenience and efficiency of replacement and maintenance of the first sealing belt and the second sealing belt; secondly, by providing the first clamping groove, the second clamping groove, the third clamping groove and the fourth clamping groove, the sealing performance of the connections at both ends of the first sealing belt and the second sealing belt is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front three-dimensional structural schematic diagram of the present utility model.

[0015] Figure 2 It is a front installation structural schematic diagram of the present utility model.

[0016] Figure 3 It is a front structural schematic diagram of the first sealing ring of the present utility model.

[0017] Figure 4 It is a structural schematic diagram of the second sealing ring of the present utility model.

[0018] Figure 5 It is a side three-dimensional structural schematic diagram of the present utility model.

[0019] The reference numerals are: 1, the first semi-ring seat; 2, the second semi-ring seat; 3, the first sealing assembly; 301, the first sealing strip; 302, the first card slot; 303, the second card slot; 4, the second sealing assembly; 401, the second sealing strip; 402, the third card slot; 403, the fourth card slot; 5, the installation groove; 6, the bolt; 7, the first notch; 8, the second notch; 9, the screw hole; 10, the groove; 11, the support seat; 12, the limit seat; 13, the pin rod. Detailed implementation manners

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0021] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] Please refer to Figures 1-5, Embodiments provided by the present utility model: A detachable mechanical seal structure for a pump seal ring, including a workbench half-ring seat 1, a half-ring seat 2, a seal assembly 3 and a seal assembly 4. Both the half-ring seat 1 and the half-ring seat 2 are made of stainless steel. The internal dimensions of the half-ring seat 1 and the half-ring seat 2 are adapted to the external dimensions of the pump shaft, and the internal dimensions of the pump chamber of the half-ring seat 1 and the half-ring seat 2 are adapted to each other, thereby improving the installation stability of the half-ring seat 1 and the half-ring seat 2. On the side wall of the half-ring seat 1 close to the half-ring seat 2, two support seats 11 are symmetrically fixed. On the side wall of the half-ring seat 2 close to the support seat 11, a groove 10 is provided. The external dimensions of the support seat 11 are adapted to the internal dimensions of the groove 10, improving the rotational stability of the half-ring seat 1 and the half-ring seat 2. On the inner side wall of the groove 10, a limit seat 12 is fixed. A pin rod 13 is rotatably connected inside the limit seat 12. The two ends of the pin rod 13 are sequentially fixed on the side wall of the support seat 11, realizing the rotation of the half-ring seat 1 and the half-ring seat 2. The half-ring seat 1 is rotatably connected to the end of the half-ring seat 2. Both ends of the half-ring seat 1 and the half-ring seat 2 are provided with a first notch 7. The seal assembly 4 includes a second sealing belt 401 clamped inside the first notch 7. On the inner side walls of the half-ring seat 1 and the half-ring seat 2, two second notches 8 are symmetrically provided. The seal assembly 3 includes a first sealing belt 301 clamped inside the second notch 8. Both the first sealing belt 301 and the second sealing belt 401 are made of rubber. The external dimensions of the first sealing belt 301 and the second sealing belt 401 are sequentially adapted to the internal dimensions of the second notch 8 and the first notch 7, improving the clamping stability of the first sealing belt 301 and the second sealing belt 401. On the side walls of the half-ring seat 1 and the half-ring seat 2, two groups of mounting grooves 5 are symmetrically provided. Bolts 6 are installed inside the two groups of mounting grooves 5. Threaded holes 9 are provided on the inner side walls of the bolts 6 for the bolts 6 to be threadedly connected. After the operator removes the limit of the bolts 6, the half-ring seat 1 and the half-ring seat 2 can be rotated and opened, facilitating the operator to take out the second sealing belt 401 and the first sealing belt 301 clamped inside the first notch 7 and the second notch 8. Both the first sealing belt 301 and the second sealing belt 401 are in an O-shaped opening structure, facilitating the new first sealing belt 301 and the second sealing belt 401 to be sequentially clamped inside the second notch 8 and the first notch 7, improving the convenience of installation and maintenance of the first sealing belt 301 and the second sealing belt 401.

[0023] One end of each of the first sealing belts 301 is provided with a first slot 302, and the other end of the first sealing belt 301 is provided with a second slot 303. The internal dimensions of the second slot 303 are adapted to the external dimensions of the end of the first sealing belt 301, improving the sealing performance of the joint of the first sealing belt 301. One end of the second sealing belt 401 is provided with a third slot 402, and the other end of the second sealing belt 401 is provided with a fourth slot 403. The internal dimensions of the fourth slot 403 are adapted to the external dimensions of one end of the first sealing belt 301, improving the sealing performance of the joint of the third slot 402.

[0024] Working principle: When the detachable mechanical seal structure of this type of pump is in use, the operator first exposes the pump shaft installed inside the pump by removing the pump housing. The pump shaft is a prior art and will not be elaborated here. By lifting the pump shaft, the device sleeved on the outer surface of the pump shaft can be exposed. After the operator releases the limit of the bolt 6, the half-ring seat one 1 and the half-ring seat two 2 can be rotated and opened, which facilitates the operator to take out the sealing belt two 401 and the sealing belt one 301 clamped inside the notch one 7 and the notch two 8. Both the sealing belt one 301 and the sealing belt two 401 are in an O-shaped opening structure, which facilitates sequentially clamping the new sealing belt one 301 and the sealing belt two 401 inside the notch two 8 and the notch one 7. The sealing belt one 301 and the sealing belt two 401 are connected end to end to form a sealing ring. The operator then rotates the half-ring seat one 1 and the half-ring seat two 2 to connect the ends, and uses the bolt 6 to be sequentially threadedly connected inside the two groups of screw holes 9 to realize the installation of this mechanical seal structure, so that the sealing belt one 301 and the sealing belt two 401 are stably sleeved on the outer surface of the pump shaft, improving the convenience of installation and maintenance of the sealing belt one 301 and the sealing belt two 401.

[0025] Secondly, the internal dimension of the slot two 303 is adapted to the external dimension of the end of the sealing belt one 301, improving the sealing performance of the joint of the sealing belt one 301. The internal dimension of the slot four 403 is adapted to the external dimension of one end of the sealing belt one 301, improving the sealing performance of the joint of the slot three 402.

[0026] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be in other sequences or carried out simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0027] In several embodiments provided by this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the above-mentioned unit division can have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0028] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without making creative efforts, combine, add or delete the features in the embodiments of the present invention according to the situation or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A detachable mechanical seal structure for a pump, characterized in that, It includes a workbench semi-ring seat one (1), a semi-ring seat two (2), a sealing component one (3) and a sealing component two (4): The semi-ring seat one (1) is rotatably connected to the end of the semi-ring seat two (2). Groove openings one (7) are provided at both ends of the semi-ring seat one (1) and the semi-ring seat two (2). The sealing component two (4) includes a sealing belt two (401) clamped inside the groove opening one (7). On the inner side walls of the semi-ring seat one (1) and the semi-ring seat two (2), two groove openings two (8) are symmetrically provided. The sealing component one (3) includes a sealing belt one (301) clamped inside the groove opening two (8). On the side walls of the semi-ring seat one (1) and the semi-ring seat two (2), two groups of mounting grooves (5) are symmetrically provided. Bolts (6) are installed inside the two groups of mounting grooves (5), and screw holes (9) are provided on the inner side walls of the bolts (6) for the bolts (6) to be threadedly connected.

2. The detachable mechanical seal structure of a pump sealing ring according to claim 1, characterized in that: On the side wall of the semi-ring seat one (1) close to the semi-ring seat two (2), two support seats (11) are symmetrically fixed. On the side wall of the semi-ring seat two (2) close to the support seats (11), a groove (10) is provided. The external dimension of the support seat (11) is adapted to the internal dimension of the groove (10).

3. A detachable mechanical seal structure for a pump seal ring according to claim 2, characterized in that: Both the sealing belt one (301) and the sealing belt two (401) are made of rubber material, and the external dimensions of the sealing belt one (301) and the sealing belt two (401) are sequentially adapted to the internal dimensions of the groove opening two (8) and the groove opening one (7).

4. A detachable mechanical seal structure for a pump seal ring according to claim 3, characterized in that: At one end of the sealing belt one (301), a clamping groove one (302) is provided. At the other end of the sealing belt one (301), a clamping groove two (303) is provided. The internal dimension of the clamping groove two (303) is adapted to the external dimension of the end of the sealing belt one (301).

5. A detachable mechanical seal structure for a pump seal ring according to claim 4, characterized in that: At one end of the sealing belt two (401), a clamping groove three (402) is provided. At the other end of the sealing belt two (401), a clamping groove four (403) is provided. The internal dimension of the clamping groove four (403) is adapted to the external dimension of one end of the sealing belt one (301).

6. A detachable mechanical seal structure for a pump seal ring according to claim 2, characterized in that: On the inner side wall of the groove (10), a limit seat (12) is fixed. A pin rod (13) is rotatably connected inside the limit seat (12), and the two ends of the pin rod (13) are sequentially fixed on the side wall of the support seat (11).

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