Novel mechanical sealing structure

Abstract

The utility model relates to a novel mechanical sealing structure which comprises a main body unit, a first sealing unit, a second sealing unit, an installation unit, a third sealing unit, a support unit and a locking unit. The sealing device has the advantages that the main body unit, the mounting unit, the third sealing unit and the bracket unit are matched for use to provide a mounting space for the third sealing unit (sealing ring). When the sealing ring needs to be taken out or replaced, by means of connection of the support unit and the installation unit, an operator can easily apply force through the support unit to take out the installation unit and the sealing ring from the main body unit, the difficulty that operation is difficult in a narrow space in a traditional mode is avoided, the replacement time of the sealing ring is shortened, and the equipment maintenance efficiency is improved; and the mounting unit can be fixed by using the locking unit, so that the stability of the structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of sealing element, especially a novel mechanical sealing structure. BACKGROUND

[0002] Mechanical sealing element belongs to one of the precision, relatively complex structure mechanical basic elements, is the key sealing part of various pump, reaction synthesis cauldron, turbine compressor, submersible motor and other equipment.

[0003] Mechanical sealing element is usually arranged at the connecting place between the rotating shaft and the shell of rotating equipment, such as pump, compressor, mixer and other equipment. The following is the specific installation position introduction: in the pump, mechanical seal is generally installed at the part of pump shaft through pump shell, is located at the connecting place near the impeller and pump shaft. In this way, it can prevent the liquid in the pump from leaking to the outside along the pump shaft, and also prevent the outside air from entering the pump, to ensure the normal work of the pump;In the compressor, the mechanical seal is usually installed at the interface of the main shaft and the casing of the compressor. Its role is to ensure that the high-pressure gas in the compressor does not leak, and to maintain the working efficiency and performance of the compressor.

[0004] The existing mechanical sealing element usually adopts single sealing ring for sealing, and the sealing effect is general. The sealing ring is usually clamped in the installation groove. In order to reduce the risk of the sealing ring falling off from the installation groove, the sealing ring is usually clamped tightly, and the installation groove diameter is small. This leads to the difficulty of pulling out or taking down the sealing ring when the sealing ring reaches the service life.

[0005] At present, there is no effective solution to the problem of inconvenient taking out of the sealing ring in the related technology. UTILITY MODEL CONTENTS

[0006] The utility model aims at the deficiency in the prior art, and provides a novel mechanical sealing structure to solve the problem of inconvenient taking out of the sealing ring in the related technology.

[0007] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0008] A novel mechanical sealing structure comprises:

[0009] A main unit is arranged in the shell and passes through the rotating shaft.

[0010] A first sealing unit is arranged at the end of the main unit, is in contact with the shell, and is connected with the main unit.

[0011] A second sealing unit is arranged on the inner side of the main unit and is in contact with the rotating shaft.

[0012] An installation unit is detachably arranged inside the main unit and communicates with the main unit;

[0013] A third sealing unit is arranged inside the installation unit and contacts the rotating shaft;

[0014] A support unit is arranged at the top end of the installation unit and is located inside the main unit and connected with the installation unit for driving the installation unit to move;

[0015] A locking unit is detachably connected with the main unit and the support unit for limiting the movement of the support unit.

[0016] In some embodiments, the main unit comprises:

[0017] A main element is arranged in the housing, and the end of the main element is provided with the first sealing unit and is connected with the first sealing unit and the housing respectively;

[0018] A first through slot element is arranged through the main element for the rotating shaft to pass through;

[0019] A first cavity element is arranged at one end of the main element, and the inside of the first cavity element is provided with the second sealing unit and communicates with the first through slot element for placing the second sealing unit;

[0020] A second cavity element is arranged inside the first through slot element, and the inside of the second cavity element is provided with the installation unit and communicates with the first through slot element for placing the installation unit;

[0021] A third cavity element is arranged at the top end of the second cavity element, and the inside of the third cavity element is provided with the support unit and communicates with the second cavity element for placing the support unit;

[0022] A first recess element is arranged at the other end of the main element and communicates with the third cavity element;

[0023] A connecting element is arranged at the bottom end inside the first recess element and is detachably connected with the locking unit.

[0024] In some embodiments, the main unit further comprises:

[0025] A plurality of second through-slot elements, each of the plurality of second through-slot elements being disposed through the main body element for the screw rod of the housing to pass through.

[0026] In some embodiments, the mounting unit comprises:

[0027] A mounting element, the mounting element being detachably disposed inside the main body unit, a top end of an outer portion of the mounting element being provided with the support unit and being in communication with the main body unit for moving under the action of the support unit.

[0028] A fourth cavity element, the fourth cavity element being disposed inside the mounting element, an inner portion of the fourth cavity element being provided with the third sealing unit for placing the third sealing unit.

[0029] In some embodiments, the support unit comprises:

[0030] A first support element, the first support element being disposed at a top end of the mounting unit and being located inside the main body unit and connected with the mounting unit for moving the mounting unit.

[0031] A second support element, the second support element being disposed at a side portion of the first support element and being in contact with the main body unit and detachably connected with the locking unit for limiting the movement of the first support element under the action of the locking unit.

[0032] In some embodiments, the support unit further comprises:

[0033] A third through-slot element, the third through-slot element being disposed at a bottom end of the first support element and connected with the mounting unit for adapting the mounting unit.

[0034] In some embodiments, the support unit further comprises:

[0035] A fourth through-slot element, the fourth through-slot element being disposed through the second support element for the locking unit to pass through.

[0036] In some embodiments, the support unit further comprises:

[0037] A fifth through-slot element, the fifth through-slot element being disposed through the first support element and being located at a top end of the second support element for an operator to pass through.

[0038] In some embodiments, the locking unit comprises:

[0039] Locking elements, respectively, with the main body unit, the bracket unit is detachable connection, for limiting the bracket unit movement.

[0040] In some embodiments, the locking unit further comprises:

[0041] Second groove element, the second groove element is arranged at the top end of the locking element, and is inserted with a hexagonal wrench.

[0042] The utility model discloses the above technical scheme, compared with the prior art, has the following technical effects:

[0043] The utility model discloses a novel mechanical sealing structure, utilize the cooperation and use between main body unit, installation unit, third sealing unit and bracket unit for third sealing unit (seal ring) provide installation space. When needing to take out or replace, with the connection of bracket unit and installation unit, the operator can easily force through bracket unit, and installation unit is taken out from main body unit together with seal ring, avoids the plight of difficult operation in the narrow space under the traditional mode, shortens the seal ring replacement time, improves equipment maintenance efficiency, utilizes locking unit and can fix installation unit, improves the stability of structure. ACCURACY OF DRAWINGS

[0044] Figure 1 It is the three-dimensional structure schematic diagram of novel mechanical sealing structure according to the utility model embodiment;

[0045] Figure 2 It is the three-dimensional structure schematic diagram of novel mechanical sealing structure according to the utility model embodiment from another visual angle;

[0046] Figure 3 It is the explosion drawing of novel mechanical sealing structure according to the utility model embodiment;

[0047] Figure 4 It is the structure schematic diagram of installation of novel mechanical sealing structure according to the utility model embodiment;

[0048] Figure 5 It is the section view of installation of novel mechanical sealing structure according to the utility model embodiment;

[0049] Figure 6 It is the section view of main body unit according to the utility model embodiment;

[0050] Figure 7 It is the three-dimensional structure schematic diagram of installation unit according to the utility model embodiment;

[0051] Figure 8 It is the three-dimensional structure schematic diagram of bracket unit according to the utility model embodiment;

[0052] Figure 9 It is a three-dimensional structure schematic diagram of the locking unit according to the embodiment of the utility model.

[0053] The reference numerals in it are: 10, main body unit; 11, main body element; 12, first through slot element; 13, first cavity element; 14, second cavity element; 15, third cavity element; 16, first recess element; 17, connecting element; 18, second through slot element;

[0054] 20, first sealing unit;

[0055] 30, second sealing unit;

[0056] 40, mounting unit; 41, mounting element; 42, fourth cavity element;

[0057] 50, third sealing unit;

[0058] 60, support unit; 61, first support element; 62, second support element; 63, third through slot element; 64, fourth through slot element; 65, fifth through slot element;

[0059] 70, locking unit; 71, locking element; 72, second recess element;

[0060] A, housing; B, rotating shaft; C, screw rod; D, nut. DETAILED DESCRIPTION

[0061] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0062] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0063] The utility model will be further described below in conjunction with the drawings and specific embodiments, but not as the limitation of the utility model.

[0064] One illustrative embodiment of the utility model, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown, a novel mechanical seal structure includes a main unit 10, a first sealing unit 20, a second sealing unit 30, a mounting unit 40, a third sealing unit 50, a bracket unit 60 and a locking unit 70. Among them, the main unit 10 is arranged in the shell A and passes through the rotating shaft B; the first sealing unit 20 is arranged at the end of the main unit 10 and is in contact with the shell A and connected with the main unit 10; the second sealing unit 30 is arranged on the inner side of the main unit 10 and is in contact with the rotating shaft B; the mounting unit 40 is detachably arranged on the inner side of the main unit 10 and is in communication with the main unit 10; the third sealing unit 50 is arranged on the inner side of the mounting unit 40 and is in contact with the rotating shaft B; the bracket unit 60 is arranged at the top end of the mounting unit 40 and is located on the inner side of the main unit 10 and connected with the mounting unit 40, used to drive the mounting unit 40 to move; the locking unit 70 is detachably connected with the main unit 10 and the bracket unit 60, used to limit the movement of the bracket unit 60.

[0065] In some embodiments, the first sealing unit 20, the second sealing unit 30 and the third sealing unit 50 are all made of rubber material.

[0066] In some embodiments, the first sealing unit 20 is a first sealing ring.

[0067] In some embodiments, the second sealing unit 30 is a second sealing ring.

[0068] In some embodiments, the third sealing unit 50 is a third sealing ring.

[0069] As Figure 6As shown, the main body unit 10 comprises a main body element 11, a first through slot element 12, a first cavity element 13, a second cavity element 14, a third cavity element 15, a first recess element 16 and a connecting element 17. Among them, the main body element 11 is arranged in the shell A, and the end of the main body element 11 is provided with a first sealing unit 20 and is connected with the first sealing unit 20 and the shell A respectively; the first through slot element 12 is arranged through the main body element 11 and is used for passing through the rotating shaft B; the first cavity element 13 is arranged at one end of the main body element 11, the inner side of the first cavity element 13 is provided with a second sealing unit 30, and the first through slot element 12 is connected in communication, and is used for placing the second sealing unit 30; the second cavity element 14 is arranged at the inner side of the first through slot element 12, the inner side of the second cavity element 14 is provided with a mounting unit 40, and the first through slot element 12 is connected in communication, and is used for placing the mounting unit 40; the third cavity element 15 is arranged at the top end of the second cavity element 14, the inner side of the third cavity element 15 is provided with a support unit 60, and the second cavity element 14 is connected in communication, and is used for placing the support unit 60; the first recess element 16 is arranged at the other end of the main body element 11 and is connected in communication with the third cavity element 15; the connecting element 17 is arranged at the bottom end inside the first recess element 16 and is detachably connected with the locking unit 70.

[0070] The cross section of the main body element 11 is circular.

[0071] In some embodiments, the main body element 11 is made of stainless steel.

[0072] In some embodiments, the main body element 11 is a main body plate.

[0073] The cross section of the first through slot element 12 is circular.

[0074] The size of the first through slot element 12 matches the size of the main body element 11. Generally, the radial dimension of the first through slot element 12 is smaller than the radial dimension of the main body element 11, and the axial dimension of the first through slot element 12 is equal to the axial dimension of the main body element 11.

[0075] In some embodiments, the first through slot element 12 is a first through slot.

[0076] The cross section of the first cavity element 13 is circular ring.

[0077] The size of the first cavity element 13 matches the size of the first through slot element 12. Generally, the radial dimension of the inner edge surface of the first cavity element 13 is equal to the radial dimension of the first through slot element 12, and the axial dimension of the first cavity element 13 is smaller than the axial dimension of the first through slot element 12.

[0078] The first cavity element 13 has a size matching the size of the main body element 11. Typically, the radial dimension of the outer edge surface of the first cavity element 13 is smaller than the radial dimension of the main body element 11.

[0079] In some embodiments thereof, the first cavity element 13 is a first mounting slot.

[0080] The second cavity element 14 has a circular ring cross-section.

[0081] The second cavity element 14 has a size matching the size of the first slot element 12. Typically, the radial dimension of the inner edge surface of the second cavity element 14 is equal to the radial dimension of the first slot element 12, and the axial dimension of the second cavity element 14 is smaller than the axial dimension of the first slot element 12.

[0082] The second cavity element 14 has a size matching the size of the main body element 11. Typically, the radial dimension of the outer edge surface of the second cavity element 14 is smaller than the radial dimension of the main body element 11.

[0083] In some embodiments thereof, the second cavity element 14 is a cavity.

[0084] The third cavity element 15 has a rectangular cross-section.

[0085] The third cavity element 15 has a size matching the size of the second cavity element 14. Typically, the length of the third cavity element 15 is equal to the radial dimension of the outer edge surface of the second cavity element 14, and the width of the third cavity element 15 is equal to the axial dimension of the second cavity element 14.

[0086] The third cavity element 15 has a size matching the size of the main body element 11. Typically, the height of the third cavity element 15 is smaller than the radial dimension of the main body element 11.

[0087] In some embodiments thereof, the third cavity element 15 is a cavity.

[0088] The first recess element 16 has a rectangular cross-section.

[0089] The first recess element 16 has a size matching the size of the third cavity element 15. Typically, the length of the first recess element 16 is equal to the length of the third cavity element 15, the width of the first recess element 16 is greater than the width of the third cavity element 15, and the height of the first recess element 16 is smaller than the height of the third cavity element 15.

[0090] The first recess element 16 has a size matching the size of the main body element 11. Typically, the width of the first recess element 16 is smaller than the axial dimension of the main body element 11.

[0091] In some embodiments thereof, the first recess element 16 is a first recess.

[0092] The cross-section of the connecting element 17 is circular.

[0093] The dimensions of the connecting element 17 are matched with the dimensions of the first recessed element 16. Generally, the radial dimension of the connecting element 17 is smaller than the length and width of the first recessed element 16.

[0094] The dimensions of the connecting element 17 are matched with the dimensions of the main body element 11. Generally, the axial dimension of the connecting element 17 is smaller than the radial dimension of the main body element 11.

[0095] In some of these embodiments, the connecting element 17 is a threaded hole.

[0096] Furthermore, the main body unit 10 also includes a plurality of second through slot elements 18. The plurality of second through slot elements 18 are respectively disposed through the main body unit 11 for the screw C of the housing A to pass through.

[0097] The cross-section of the second through-slot element 18 is circular.

[0098] The dimensions of the second through-slot element 18 are matched with the dimensions of the main body element 11. Generally, the radial dimension of the second through-slot element 18 is smaller than the radial dimension of the main body element 11, and the axial dimension of the second through-slot element 18 is equal to the axial dimension of the main body element 11.

[0099] In some of these embodiments, a plurality of second through-slot elements 18 are arranged at equal intervals along the circumference of the main body element 11.

[0100] In some of these embodiments, the second through slot element 18 is a second through slot.

[0101] like Figure 7 As shown, the mounting unit 40 includes a mounting element 41 and a fourth cavity element 42. The mounting element 41 is detachably disposed inside the main body unit 10. A support unit 60 is provided at the top of the outer surface of the mounting element 41 and is connected to the main body unit 10 for movement under the action of the support unit 60. The fourth cavity element 42 is disposed inside the mounting element 41, and a third sealing unit 50 is provided inside the fourth cavity element 42 for housing the third sealing unit 50.

[0102] Specifically, the mounting element 41 is detachably disposed inside the second cavity element 14 and is connected to the first through slot element 12; the fourth cavity element 42 is connected to the first through slot element 12.

[0103] Mounting element 41 has a hollow structure.

[0104] The mounting element 41 is sized to match the size of the second cavity element 14. Generally, the radial dimension of the outer edge surface of the mounting element 41 is equal to the radial dimension of the outer edge surface of the second cavity element 14, and the axial dimension of the mounting element 41 is equal to the axial dimension of the second cavity element 14.

[0105] The mounting element 41 is sized to match the size of the first slot element 12. Generally, the radial dimension of the inner edge surface of the mounting element 41 is equal to the radial dimension of the first slot element 12.

[0106] In some embodiments, the mounting element 41 is made of stainless steel.

[0107] In some embodiments, the mounting element 41 is a mounting plate.

[0108] The fourth cavity element 42 has a circular ring shape in cross section.

[0109] The fourth cavity element 42 is sized to match the size of the mounting element 41. Generally, the radial dimension of the outer edge surface of the fourth cavity element 42 is smaller than the radial dimension of the outer edge surface of the mounting element 41, the radial dimension of the inner edge surface of the fourth cavity element 42 is equal to the radial dimension of the inner edge surface of the mounting element 41, and the axial dimension of the fourth cavity element 42 is smaller than the axial dimension of the mounting element 41.

[0110] In some embodiments, the fourth cavity element 42 is a second mounting slot.

[0111] As shown in Figure 8 The bracket unit 60 includes a first bracket element 61 and a second bracket element 62. The first bracket element 61 is arranged at the top end of the mounting unit 40, located inside the main body unit 10, and connected with the mounting unit 40, for driving the mounting unit 40 to move; the second bracket element 62 is arranged at the side of the first bracket element 61, in contact with the main body unit 10, and detachably connected with the locking unit 70, for limiting the movement of the first bracket element 61 under the action of the locking unit 70.

[0112] Specifically, the first bracket element 61 is arranged at the top end outside the mounting element 41, located inside the third cavity element 15, and connected with the mounting element 41; the second bracket element 62 is in contact with the bottom end inside the first recess element 16.

[0113] The first bracket element 61 has a structure with a circular arc-shaped top end and a rectangular bottom end. The circular arc-shaped top end is adapted to the main body element 11.

[0114] The first bracket element 61 has a size matching that of the mounting element 41. Generally, the length of the first bracket element 61 is equal to the radial dimension of the outer edge surface of the mounting element 41, and the width of the first bracket element 61 is equal to the axial dimension of the mounting element 41.

[0115] The first bracket element 61 has a size matching that of the third cavity element 15. Generally, the length of the first bracket element 61 is equal to the length of the third cavity element 15, the width of the first bracket element 61 is equal to the width of the third cavity element 15, and the height of the first bracket element 61 is equal to the height of the third cavity element 15.

[0116] In some embodiments, the first bracket element 61 is fixedly connected to the mounting element 41, including but not limited to being integrally formed.

[0117] In some embodiments, the first bracket element 61 is made of stainless steel.

[0118] In some embodiments, the first bracket element 61 is a first bracket plate.

[0119] Further, the bracket unit 60 further comprises a third through-slot element 63. The third through-slot element 63 is arranged at the bottom end of the first bracket element 61 and is connected to the mounting unit 40, for adapting to the mounting unit 40.

[0120] Specifically, the third through-slot element 63 is in abutment with the outer edge surface of the mounting element 41.

[0121] The third through-slot element 63 has a circular arc cross section.

[0122] The third through-slot element 63 has a size matching that of the first bracket element 61. Generally, the radial dimension (diameter) of the third through-slot element 63 is equal to the length of the first bracket element 61, the axial dimension of the third through-slot element 63 is equal to the width of the first bracket element 61, and the radial dimension of the third through-slot element 63 is less than the height of the first bracket element 61.

[0123] The third through-slot element 63 has a size matching that of the mounting element 41. Generally, the radial dimension (diameter) of the third through-slot element 63 is equal to the radial dimension of the outer edge surface of the mounting element 41, and the axial dimension of the third through-slot element 63 is equal to the axial dimension of the mounting element 41.

[0124] In some embodiments, the third through-slot element 63 is a third through-slot.

[0125] Further, the bracket unit 60 further comprises a fourth through-slot element 64. The fourth through-slot element 64 is arranged through the second bracket element 62, for the locking unit 70 to pass through.

[0126] Specifically, the fourth through slot element 64 is connected to the connecting element 17.

[0127] In some embodiments, the fourth through slot element 64 includes a fourth through slot and a fifth through slot. The fourth through slot is disposed at the top of the second support element 62; the fifth through slot is disposed at the bottom of the interior of the fourth through slot and communicates with the connecting element 17.

[0128] The dimensions of the fourth through slot are matched with the dimensions of the second support element 62. Generally, the radial dimension of the fourth through slot is smaller than the length and width of the second support element 62, and the axial dimension of the fourth through slot is smaller than the height of the second support element 62.

[0129] The dimensions of the fifth through slot are matched with the dimensions of the second support element 62. Generally, the radial dimension of the fifth through slot is smaller than the length and width of the second support element 62, and the axial dimension of the fifth through slot is smaller than the height of the second support element 62.

[0130] The dimensions of the fifth through slot match the dimensions of the connecting element 17. Generally, the radial dimension of the fifth through slot is equal to the radial dimension of the connecting element 17.

[0131] The sum of the axial dimensions of the fifth through slot and the fourth through slot is equal to the height of the second support element 62.

[0132] Furthermore, the support unit 60 also includes a fifth through slot element 65. The fifth through slot element 65 passes through the first support element 61 and is located at the top of the second support element 62, for the operator to pass through.

[0133] The fifth through slot element 65 has a rectangular cross-section.

[0134] The dimensions of the fifth through slot element 65 are matched with the dimensions of the first support element 61. Generally, the length of the fifth through slot element 65 is less than the length of the first support element 61, the width of the fifth through slot element 65 is equal to the width of the first support element 61, and the height of the fifth through slot element 65 is less than the height of the first support element 61.

[0135] In some of these embodiments, the fifth through slot element 65 is the sixth through slot.

[0136] like Figure 9 As shown, the locking unit 70 includes a locking element 71. The locking element 71 is detachably connected to the main body unit 10 and the support unit 60, respectively, and is used to restrict the movement of the support unit 60.

[0137] Specifically, the locking element 71 passes through the fourth through slot element 64 and is threadedly connected to the connecting element 17.

[0138] More specifically, the locking element 71 passes through the fourth through slot and the fifth through slot, respectively.

[0139] In some embodiments, the locking element 71 comprises a limiting plate and a threaded rod. The limiting plate is arranged in the fourth through slot; the threaded rod is arranged at the top end of the limiting plate and is threadedly connected with the connecting element 17 through the fifth through slot.

[0140] The limiting plate is matched in size with the fourth through slot element 64. Generally, the radial dimension of the limiting plate is equal to the radial dimension of the fourth through slot, and the axial dimension of the limiting plate is equal to the axial dimension of the fourth through slot.

[0141] The threaded rod is matched in size with the fourth through slot element 64. Generally, the radial dimension of the threaded rod is equal to the radial dimension of the fifth through slot, and the axial dimension of the threaded rod is greater than the axial dimension of the fifth through slot.

[0142] The threaded rod is matched in size with the connecting element 17. Generally, the radial dimension of the threaded rod is equal to the radial dimension of the connecting element 17, and the axial dimension of the threaded rod is greater than the axial dimension of the connecting element 17.

[0143] The threaded rod is matched in size with the limiting plate. Generally, the radial dimension of the threaded rod is less than the radial dimension of the limiting plate, and the axial dimension of the threaded rod is greater than the axial dimension of the limiting plate.

[0144] The axial dimension of the threaded rod is equal to the sum of the axial dimension of the connecting element 17 and the axial dimension of the fifth through slot.

[0145] In some embodiments, the locking element 71 is made of metal.

[0146] Further, the locking unit 70 further comprises a second recess element 72. The second recess element 72 is arranged at the top end of the locking element 71 and is configured to be inserted by a hexagonal wrench.

[0147] Specifically, the second recess element 72 is arranged at the top end of the limiting plate.

[0148] The cross section of the second recess element 72 is a regular hexagon.

[0149] The second recess element 72 is matched in size with the locking element 71. Generally, the radial dimension of the second recess element 72 is less than the radial dimension of the limiting plate, and the axial dimension of the second recess element 72 is less than the axial dimension of the limiting plate.

[0150] In some embodiments, the second recess element 72 is a second recess.

[0151] The use method of the utility model is as follows:

[0152] (1) Installation of sealing unit

[0153] The first sealing unit 20 is placed at the end of the main body element 11 and connected by adhesive;

[0154] The second sealing unit 30 is placed in the first cavity element 13;

[0155] The third sealing unit 50 is placed in the fourth cavity element 42;

[0156] The installation element 41 with the third sealing unit 50 is placed in the second cavity element 14;

[0157] In the process, the first bracket element 61 is located in the third cavity element 15, the bottom end of the second bracket element 62 is in contact with the bottom end of the inside of the first recess element 16, and the fourth through slot element 64 corresponds to (communicates with) the connecting element 17;

[0158] The locking element 71 is screwed through the fourth through slot element 64 and the connecting element 17 until it is tightened.

[0159] (2) Installation of new mechanical sealing structure

[0160] The main body element 11 with the first sealing unit 20, the second sealing unit 30, and the third sealing unit 50 is placed at the designated position (housing A);

[0161] In the process, the rotating shaft B passes through the first through slot element 12 and respectively contacts the inner edge surface of the second sealing unit 30 and the third sealing unit 50;

[0162] The first sealing unit 20 is in contact with the housing A;

[0163] The screw rod C of the housing A passes through the corresponding second through slot element 18 and is screwed by the nut D until it is tightened.

[0164] (3) Replacement operation

[0165] Twist the nut D until the nut D is removed, thereby separating the main body element 11 from the designated position (housing A);

[0166] The second sealing unit 30 that needs to be replaced is removed from the first cavity element 13, and a new second sealing unit 30 is placed in the first cavity element 13;

[0167] Insert a hexagonal wrench into the second recess element 72 and twist the hexagonal wrench to rotate the locking element 71 until it is separated from the connecting element 17, and then remove the locking element 71 from the fourth through slot element 64;

[0168] The first support element 61 is lifted by the fifth through slot element 65, and the mounting element 41 provided with the third sealing unit 50 to be replaced is moved correspondingly until the third sealing unit 50 is moved out of the third cavity element 15;

[0169] The third sealing unit 50 to be replaced is taken out of the fourth cavity element 42, and a new third sealing unit 50 is placed in the fourth cavity element 42;

[0170] Secondly, the installation of the new third sealing unit 50, the mounting body element 11 and the use methods (one) and (two) are basically the same, and details are not repeated here.

[0171] The utility model discloses the advantage lies in, utilize the cooperation of main body unit, installation unit, third sealing unit and support unit and provide installation space for third sealing unit (seal ring) when needing to take out or replace, with the help of the connection of support unit and installation unit, and operating personnel can easily take out installation unit together with seal ring from main body unit through the force of support unit, avoid the plight of difficult operation in the narrow space under the traditional mode, shorten the seal ring replacement time, improve equipment maintenance efficiency, utilize locking unit and can fix installation unit, improve the stability of structure.

[0172] The above only describes the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and for those skilled in the art, it should be realized that the equivalent replacement and obvious changes obtained from the application of the utility model specification and drawing contents all should include in the protection scope of the utility model.

Claims

1. A novel mechanical seal structure, characterized by, The utility model provides a kind of main unit (10), first sealing unit (20), second sealing unit (30), installation unit (40), third sealing unit (50), bracket unit (60) and locking unit (70) are included. The main unit (10) includes: The main element (11) is arranged in the shell, and the end of the main element (11) is provided with the first sealing unit (20), and is connected with the first sealing unit (20) and the shell respectively; The first through slot element (12) is arranged through the main element (11), for the shaft to pass through; The first cavity element (13) is arranged at one end of the main element (11), and the inner side of the first cavity element (13) is provided with the second sealing unit (30) and is communicated with the first through slot element (12), for placing the second sealing unit (30); The second cavity element (14) is arranged inside the first through slot element (12), and the inner side of the second cavity element (14) is provided with the installation unit (40) and is communicated with the first through slot element (12), for placing the installation unit (40); The third cavity element (15) is arranged at the top end of the second cavity element (14), and the inner side of the third cavity element (15) is provided with the bracket unit (60) and is communicated with the second cavity element (14), for placing the bracket unit (60); The first recess element (16) is arranged at the other end of the main element (11) and is communicated with the third cavity element (15); 2. The novel mechanical seal structure according to claim 1, wherein The connecting element (17) is arranged at the bottom end inside the first recess element (16) and is detachably connected with the locking unit (70). The main unit (10) further includes: ​ ​ ​ ​ ​ ​ 3. The novel mechanical seal structure according to claim 2, wherein ​ A plurality of second through-slot elements (18) are respectively disposed through the main body element (11) for the screw of the housing to pass through.

4. The novel mechanical seal structure according to claim 1, characterized by The mounting unit (40) includes: Mounting element (41) is detachably disposed inside the main body unit (10). The top of the mounting element (41) is provided with the support unit (60) and is connected to the main body unit (10) for moving under the action of the support unit (60). A fourth cavity element (42) is disposed inside the mounting element (41), and the third sealing unit (50) is disposed inside the fourth cavity element (42) for placing the third sealing unit (50).

5. The novel mechanical seal structure according to claim 1, characterized by The support unit (60) includes: The first support element (61) is disposed at the top of the mounting unit (40) and located inside the main body unit (10), and is connected to the mounting unit (40) to drive the mounting unit (40) to move. The second support element (62) is disposed on the side of the first support element (61) and is in contact with the main body unit (10), and is detachably connected to the locking unit (70) for restricting the movement of the first support element (61) under the action of the locking unit (70).

6. The novel mechanical seal structure according to claim 5, wherein The support unit (60) further includes: The third through slot element (63) is disposed at the bottom end of the first bracket element (61) and connected to the mounting unit (40) for fitting the mounting unit (40).

7. The novel mechanical seal structure according to claim 6, wherein The support unit (60) further includes: A fourth through slot element (64) is disposed through the second bracket element (62) for the locking unit (70) to pass through.

8. The novel mechanical seal structure according to claim 6, wherein The support unit (60) further includes: A fifth through slot element (65) is disposed through the first support element (61) and located at the top of the second support element (62) for the operator to pass through.

9. The novel mechanical seal structure according to claim 1, characterized by The locking unit (70) includes: A locking element (71) is detachably connected to the main body unit (10) and the support unit (60) respectively, and is used to restrict the movement of the support unit (60).

10. The novel mechanical seal structure according to claim 9, wherein The locking unit (70) further includes: The second groove element (72) is disposed at the top of the locking element (71) and is inserted into the hexagonal wrench.

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