Mechanical sealing mechanism

Abstract

The utility model relates to the field of mechanical sealing, in particular to a mechanical sealing mechanism which comprises a first shell, one end of the first shell is fixedly connected with a first connecting ring, one side of the first connecting ring is provided with a first sealing groove, one side of the first shell is provided with a second shell, and the second shell is provided with a second sealing groove. A first connecting ring is fixedly connected to one end of the first shell, a second connecting ring is fixedly connected to one end of the second shell, rectangular blocks are fixedly connected to the two sides of the first connecting ring, rectangular cavities are formed in the rectangular blocks, first springs are fixedly connected to the interiors of the rectangular cavities, a rectangular plate is fixedly connected to one ends of the first springs, and a trapezoidal block is fixedly connected to one side of the rectangular plate; a connecting rod is fixedly connected to one side of the rectangular plate, and rectangular grooves are formed in the two sides of the second connecting ring. During use, the second shell and the first shell can be separated for maintenance by pulling the connecting rods on the two sides until the trapezoidal block enters the rectangular cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seals, in particular to a mechanical seal mechanism. Background Art

[0002] A mechanical seal is a device that prevents fluid leakage by ensuring that at least one pair of end faces perpendicular to the axis of rotation remain in contact and slide relative to each other, driven by fluid pressure, the elastic force (or magnetic force) of a compensating mechanism, and the cooperation of auxiliary seals. Mechanical seals are widely used in various industrial equipment, such as centrifugal pumps, mixers, compressors, and refrigerators, and are particularly essential in high-speed rotating equipment. Their advantages include excellent sealing performance, high pressure resistance, and long service life.

[0003] Mechanical seals are used to seal various industrial equipment, preventing fluid leakage during operation. Existing seals are secured with bolts. If a seal malfunctions and internal inspection is required, the bolts must be removed before the seal is disassembled. This is time-consuming and inconvenient. Therefore, a new mechanical seal mechanism has been proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the existing mechanical seal structure, which requires removing the bolts first and then disassembling the seal mechanism when internal maintenance is required, which takes a long time and is relatively inconvenient.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A mechanical sealing mechanism includes a first shell, one end of the first shell is fixedly connected to a first connecting ring, one side of the first connecting ring is provided with a first sealing groove, a second shell is provided on one side of the first shell, one end of the second shell is fixedly connected to a second connecting ring, both sides of the first connecting ring are fixedly connected to rectangular blocks, a rectangular cavity is provided in the rectangular block, a first spring is fixedly connected in the rectangular cavity, one end of the first spring is fixedly connected to a rectangular plate, one side of the rectangular plate is fixedly connected to a trapezoidal block, one side of the rectangular plate is fixedly connected to a connecting rod, and rectangular grooves are provided on both sides of the second connecting ring.

[0007] Preferably, one end of the connecting rod is fixedly connected to a pull plate, the rectangular plate is slidingly connected to the rectangular cavity, the second connecting ring is located in the first sealing groove, the trapezoidal block is located in the rectangular groove, a circular hole is opened on one side of the rectangular block, and the connecting rod is located in the circular hole.

[0008] Preferably, a first sealing ring is installed in the first housing, and a second spring is fixedly connected to the first sealing ring.

[0009] Preferably, a second sealing groove is formed at one end of the second shell, a second sealing ring is fixedly connected to one end of the second spring, and the second sealing ring is located in the second sealing groove.

[0010] Preferably, the first shell and the second shell are both provided with a circular opening, and a rotating shaft is provided in the circular opening.

[0011] Preferably, the rotating shaft is located in the circular hole, and the rotating shaft is located in the first sealing ring and the second sealing ring.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the device is in use, the connecting rods on both sides can be pulled to drive the rectangular plate to slide in the rectangular cavity. The rectangular plate drives the trapezoidal block to slide out of the rectangular groove. The first spring contracts until the trapezoidal block enters the rectangular cavity. The second shell can be separated from the first shell, and the interior of the sealing structure can be inspected and maintained. The time required is short and it is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a mechanical sealing mechanism proposed by the present invention;

[0015] Figure 2 This is a schematic diagram of a cross-sectional three-dimensional structure of a mechanical sealing mechanism proposed in the present invention;

[0016] Figure 3 A mechanical sealing mechanism proposed in this utility model Figure 2 Schematic diagram of the three-dimensional structure at A in the middle;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of a first connecting ring of a mechanical sealing mechanism proposed by the present invention;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the second shell of a mechanical sealing mechanism proposed by the present invention;

[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of a first spring of a mechanical sealing mechanism proposed in the present invention.

[0020] In the figure: 1. first shell; 2. first connecting ring; 3. first sealing groove; 4. second shell; 5. second connecting ring; 6. rectangular block; 7. rectangular cavity; 8. first spring; 9. rectangular plate; 10. trapezoidal block; 11. connecting rod; 12. rectangular groove; 13. pull plate; 14. first sealing ring; 15. second spring; 16. second sealing groove; 17. second sealing ring; 18. rotating shaft. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Reference Figures 1-6 A mechanical sealing mechanism includes a first shell 1, one end of the first shell 1 is fixedly connected to a first connecting ring 2, one side of the first connecting ring 2 is provided with a first sealing groove 3, a second shell 4 is provided on one side of the first shell 1, one end of the second shell 4 is fixedly connected to a second connecting ring 5, both sides of the first connecting ring 2 are fixedly connected to rectangular blocks 6, a rectangular cavity 7 is provided in the rectangular block 6, a first spring 8 is fixedly connected in the rectangular cavity 7, one end of the first spring 8 is fixedly connected to a rectangular plate 9, one side of the rectangular plate 9 is fixedly connected to a trapezoidal block 10, one side of the rectangular plate 9 is fixedly connected to a connecting rod 11, and rectangular grooves 12 are provided on both sides of the second connecting ring 5.

[0023] Among them, the first shell 1 and the second shell 4 are put together, the second connecting ring 5 slides into the first sealing groove 3, and the second shell 4 is pressed. The second connecting ring 5 slides along the hypotenuse of the trapezoidal block 10, so that the trapezoidal block 10 enters the rectangular cavity 7, and the first spring 8 contracts until the second connecting ring 5 completely enters the first sealing groove 3. Under the elastic action of the first spring 8, the trapezoidal block 10 is stuck in the rectangular groove 12, thereby limiting the second connecting ring 5 and completing the assembly of the first shell 1 and the second shell 4 together.

[0024] Furthermore, one end of the connecting rod 11 is fixedly connected to the pull plate 13, the rectangular plate 9 is slidingly connected to the rectangular cavity 7, the second connecting ring 5 is located in the first sealing groove 3, the trapezoidal block 10 is located in the rectangular groove 12, a circular hole is opened on one side of the rectangular block 6, and the connecting rod 11 is located in the circular hole.

[0025] The second connecting ring 5 seals the first sealing groove 3 to prevent the fluid from flowing out of the gap;

[0026] The connecting rod 11 is pulled by the pulling plate 13 , and the connecting rod 11 slides along the circular hole, thereby driving the rectangular plate 9 to slide in the rectangular cavity 7 .

[0027] Furthermore, a first sealing ring 14 is installed in the first shell 1, and a second spring 15 is fixedly connected to the first sealing ring 14. A second sealing groove 16 is provided at one end of the second shell 4, and a second sealing ring 17 is fixedly connected to one end of the second spring 15. The second sealing ring 17 is located in the second sealing groove 16. Circular openings are provided on both the first shell 1 and the second shell 4, and a rotating shaft 18 is provided in the circular openings.

[0028] The first sealing ring 14 seals the circular opening on the first housing 1 , and under the elastic action of the second spring 15 , the second sealing ring 17 is clamped in the second sealing groove 16 to seal the second housing 4 , and the rotating shaft 18 rotates in the circular opening.

[0029] Furthermore, the rotating shaft 18 is located in the circular hole, and the rotating shaft 18 is located in the first sealing ring 14 and the second sealing ring 17 .

[0030] The rotating shaft 18 rotates inside the first sealing ring 14 and the second sealing ring 17 .

[0031] The working principle of this utility model:

[0032] When it is necessary to inspect the inside of the sealing structure, the connecting rods 11 on both sides are pulled at the same time by pulling the plate 13. The connecting rods 11 slide along the circular hole, thereby driving the rectangular plate 9 to slide in the rectangular cavity 7. The rectangular plate 9 moves away from the second connecting ring 5. The rectangular plate 9 drives the trapezoidal block 10 to slide out of the rectangular groove 12. The first spring 8 contracts until the trapezoidal block 10 enters the rectangular cavity 7. The second shell 4 can be separated from the first shell 1, and the interior of the sealing structure can be inspected. The time required is short and more convenient.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mechanical sealing mechanism, comprising a first housing (1), characterized in that: One end of the first shell (1) is fixedly connected to a first connecting ring (2), one side of the first connecting ring (2) is provided with a first sealing groove (3), a second shell (4) is provided on one side of the first shell (1), one end of the second shell (4) is fixedly connected to a second connecting ring (5), both sides of the first connecting ring (2) are fixedly connected to rectangular blocks (6), a rectangular cavity (7) is provided in the rectangular block (6), a first spring (8) is fixedly connected in the rectangular cavity (7), one end of the first spring (8) is fixedly connected to a rectangular plate (9), one side of the rectangular plate (9) is fixedly connected to a trapezoidal block (10), one side of the rectangular plate (9) is fixedly connected to a connecting rod (11), and both sides of the second connecting ring (5) are provided with rectangular grooves (12).

2. A mechanical sealing mechanism according to claim 1, characterized in that: One end of the connecting rod (11) is fixedly connected to a pull plate (13), the rectangular plate (9) is slidably connected to the rectangular cavity (7), the second connecting ring (5) is located in the first sealing groove (3), the trapezoidal block (10) is located in the rectangular groove (12), a circular hole is opened on one side of the rectangular block (6), and the connecting rod (11) is located in the circular hole.

3. A mechanical sealing mechanism according to claim 1, characterized in that: A first sealing ring (14) is installed in the first housing (1), and a second spring (15) is fixedly connected to the first sealing ring (14).

4. A mechanical sealing mechanism according to claim 3, characterized in that: A second sealing groove (16) is formed at one end of the second housing (4), a second sealing ring (17) is fixedly connected to one end of the second spring (15), and the second sealing ring (17) is located in the second sealing groove (16).

5. A mechanical sealing mechanism according to claim 4, characterized in that: The first shell (1) and the second shell (4) are both provided with a circular opening, and a rotating shaft (18) is provided in the circular opening.

6. A mechanical sealing mechanism according to claim 5, characterized in that: The rotating shaft (18) is located in the circular hole, and the rotating shaft (18) is located in the first sealing ring (14) and the second sealing ring (17).

Images