Mechanical sealing structure for corrosion-resistant pump

Abstract

The utility model discloses a corrosion-resistant pump mechanical seal structure which comprises a pump body, the output end of the pump body is fixedly connected with a first clamping block and a second clamping block, a connecting pipe is fixedly connected between the inner wall of the first clamping block and the inner wall of the second clamping block, and a locking assembly is arranged on one side of the first clamping block and one side of the second clamping block. The output end of the pump body and one end of the connecting pipe are arranged on the outer sides of the two ends of the corrosion-resistant inner pipe at the bottom of the supporting block in a sleeved mode respectively, then the two air suction and exhaust devices at the top of the first clamping block are used for inflating the two sealing air bags, and after the two sealing air bags are expanded, the output end of the pump body and one end of the connecting pipe are extruded respectively; the inner sides of the output end of the pump body and one end of the connecting pipe are tightly attached to the outer side of the corrosion-resistant inner pipe, and meanwhile, the outer sides of the two sealing air bags are tightly attached to the inner sides of the first clamping block and the second clamping block, so that fixed sealing connection of the pump body and the connecting pipe is achieved, and then the mounting efficiency and the sealing performance of the corrosion-resistant pump are improved; and the safety is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of corrosion-resistant pump seals, in particular to a mechanical seal structure for a corrosion-resistant pump. Background Art

[0002] A corrosion-resistant pump is a pump designed specifically for conveying corrosive media. Its main purpose is to ensure the safety and reliability of the pump in harsh environments. Corrosion-resistant pumps are widely used in the chemical industry, pharmaceutical industry, food and beverage industry, oil and gas industry and other industries. The correct selection and use of corrosion-resistant pumps can effectively extend the service life of the equipment, reduce the failure rate and improve work efficiency.

[0003] After searching, a Chinese patent discloses a mechanical seal structure for a corrosion-resistant pump, and its authorization announcement number is (CN217582479U), which includes a corrosion-resistant pump body and a T-shaped connecting pipe, and is characterized in that two springs are installed on the rear side of the connecting pipe, and a fixed plate is installed at the other end of the spring, and an annular movable plate is installed between the two fixed plates.

[0004] This patent sets up a fixed plate, spring one, a movable plate, a threaded rod, a sealing ring, spring two, a telescopic rod, a sponge plate, a trapezoidal plate, a sliding rod, a placement groove, a trapezoidal groove and a fixed component to cooperate with each other, and then intercepts and fixes the movable plate through the fixed component and spring one, and then drives the sealing ring to seal the interface between the corrosion-resistant pump and the connecting pipe through the threaded rod, and then strengthens the sealing of the rear side of the movable plate through spring two and the sponge plate. However, in actual use, the sealing ring seals the interface between the corrosion-resistant pump and the connecting pipe. At the same time, the disassembly and assembly efficiency of the sealing structure is also particularly important. The existing sealing structure is too cumbersome when disassembling and assembling the corrosion-resistant pump, thereby reducing the disassembly and assembly efficiency of the corrosion-resistant pump, making the sealing structure not conducive to actual use. Utility Model Content

[0005] The purpose of the utility model is to provide a corrosion-resistant mechanical seal structure for a pump to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a mechanical seal structure for a corrosion-resistant pump, comprising a pump body, wherein the output end of the pump body is fixedly connected to a first clamp block and a second clamp block, a connecting pipe is fixedly connected between the inner walls of the first clamp block and the second clamp block, a locking assembly is provided on one side of the first clamp block and the second clamp block, the locking assembly is used to lock the first clamp block and the second clamp block, the inner side of the first clamp block is fixedly connected to a support block, the bottom of the support block and the inner side of the first clamp block are fixedly connected to a corrosion-resistant inner tube, the outer side of the corrosion-resistant inner tube is in contact with the inner side of the pump body and the connecting pipe.

[0007] As a further preferred embodiment of the present technical solution, the locking assembly includes a vertical plate and a fixing box, the vertical plate is fixedly connected to one side of the first clamping block, a fixing groove is provided on one side of the vertical plate, the fixing box is fixedly connected to one side of the second clamping block, a through groove is provided on one side of the fixing box, and the through groove passes through the fixing box.

[0008] As a further preferred embodiment of the present technical solution, a limiting plate is slidably connected between the inner walls of the fixed box, a spring is fixedly connected between one side of the limiting plate and the inner side of the fixed box, a pressing block and a clamping block are fixedly connected on both sides of the limiting plate, the pressing block and the clamping block are both slidably connected between the through groove and the inner wall of the fixed box, one end of the pressing block and the clamping block extends to both sides of the fixed box respectively, and one end of the clamping block contacts the inner side of the fixed groove.

[0009] As a further preferred embodiment of the present technical solution, sealing airbags are fixedly connected to both sides of the support block and between the inner walls of the first clamping block. The outer sides of the two sealing airbags are in contact with the inner side of the second clamping block, and the inner sides of the two sealing airbags are in contact with the output end of the pump body and the connecting pipe respectively.

[0010] As a further preferred embodiment of the present technical solution, two suction and exhaust devices are fixedly installed on the top of the first clamping block, and the output ends of the two suction and exhaust devices extend to the inner side of the first clamping block and are fixedly connected to the two sealed air bags respectively, and the output ends of the two suction and exhaust devices are respectively connected to the interior of the two sealed air bags.

[0011] As a further preferred embodiment of the present technical solution, one side of the first clamping block is fixedly connected to two fixing plates, a connecting rod is fixedly connected between the two fixing plates, and one side of the second clamping block is fixedly connected to a connecting block.

[0012] As a further preferred embodiment of the present technical solution, the connecting block is rotatably connected to the outer side of the connecting rod and is located between the two fixing plates.

[0013] The utility model provides a corrosion-resistant mechanical seal structure for a pump, which has the following beneficial effects:

[0014] (1) The utility model inserts the output end of the pump body and one end of the connecting pipe into the outer sides of the two ends of the corrosion-resistant inner pipe at the bottom of the support block respectively, and then inflates the two sealing airbags through the two suction and exhaust devices on the top of the first clamping block. After the two sealing airbags are expanded, they squeeze the output end of the pump body and one end of the connecting pipe respectively, so that the inner sides of the output end of the pump body and one end of the connecting pipe are tightly fitted with the outer side of the corrosion-resistant inner pipe. At the same time, the outer sides of the two sealing airbags are tightly fitted with the inner sides of the first clamping block and the second clamping block, thereby realizing a fixed sealed connection between the pump body and the connecting pipe, thereby improving the installation efficiency and sealing of the corrosion-resistant pump and further enhancing its safety.

[0015] (2) The utility model facilitates the fixed connection between the pump body and the connecting pipe by rotating the connecting block on the outside of the connecting rod and between the two fixed plates. Subsequently, the first clamping block and the second clamping block are firmly locked at the interface between the pump body and the connecting pipe through the locking assembly, thereby improving the disassembly and maintenance efficiency of the corrosion-resistant pump and enhancing the stability of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the first clamping block and the second clamping block of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the suction and exhaust device of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection block structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the fixing box structure of the present utility model;

[0021] Figure 6 This is a schematic diagram of the structure of point A of the present utility model;

[0022] In the figure: 1. Pump body; 2. Connecting pipe; 3. First clamping block; 4. Second clamping block; 5. Suction and exhaust device; 6. Fixing plate; 7. Connecting block; 8. Support block; 9. Sealing airbag; 10. Corrosion-resistant inner tube; 11. Fixing box; 12. Connecting rod; 13. Vertical plate; 14. Fixing groove; 15. Through groove; 16. Block; 17. Spring; 18. Limiting plate; 19. Press block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides a technical solution: Figures 1-6As shown, in this embodiment, a mechanical seal structure for a corrosion-resistant pump includes a pump body 1, the output end of the pump body 1 is fixedly connected to a first clamping block 3 and a second clamping block 4, a connecting pipe 2 is fixedly connected between the inner walls of the first clamping block 3 and the second clamping block 4, a locking assembly is provided on one side of the first clamping block 3 and the second clamping block 4, the locking assembly is used to lock the first clamping block 3 and the second clamping block 4, the inner side of the first clamping block 3 is fixedly connected to a support block 8, the bottom of the support block 8 and the inner side of the first clamping block 3 are fixedly connected to a corrosion-resistant inner tube 10, the outer side of the corrosion-resistant inner tube 10 is in contact with the inner side of the pump body 1 and the connecting pipe 2, and sealing air bags 9 are fixedly connected on both sides of the support block 8 and between the inner walls of the first clamping block 3. The outer sides of the two sealing air bags 9 are in conflict with the inner side of the second clamping block 4, and the inner sides of the two sealing air bags 9 are in conflict with the output end of the pump body 1 and the connecting pipe 2 respectively. Two suction and exhaust devices 5 are fixedly installed on the top of the first clamping block 3. The output ends of the two suction and exhaust devices 5 extend to the inner side of the first clamping block 3 and are fixedly connected to the two sealing air bags 9 respectively. The output ends of the two suction and exhaust devices 5 are respectively connected to the interior of the two sealing air bags 9. One side of the first clamping block 3 is fixedly connected to two fixing plates 6, and a connecting rod 12 is fixedly connected between the two fixing plates 6. One side of the second clamping block 4 is fixedly connected to a connecting block 7, and the connecting block 7 is rotatably connected to the outer side of the connecting rod 12 and is located between the two fixing plates 6.

[0025] When the corrosion-resistant pump is installed and used, first, the output end of the pump body 1 and one end of the connecting pipe 2 are respectively inserted into the outer sides of the two ends of the corrosion-resistant inner pipe 10 at the bottom of the support block 8, and then the connecting block 7 is rotated on the outer side of the connecting rod 12 and between the two fixed plates 6, so that the first clamping block 3 and the second clamping block 4 are in contact, and then the first clamping block 3 and the second clamping block 4 are locked at the connection between the pump body 1 and the connecting pipe 2 through the locking assembly, and then the interior of the two sealing air bags 9 are inflated respectively through the two suction and exhaust devices 5, so that after the two sealing air bags 9 are expanded, the outer sides of the two sealing air bags 9 are both fitted with the inner sides of the first clamping block 3 and the second clamping block 4, and at the same time, the inner sides of the two sealing air bags 9 squeeze the output end of the pump body 1 and one end of the connecting pipe 2 respectively, so that the inner sides of the output end of the pump body 1 and one end of the connecting pipe 2 are tightly fitted with the outer sides of the corrosion-resistant inner pipe 10, thereby completing the installation and use of the corrosion-resistant pump, thereby improving the sealing and installation efficiency of the corrosion-resistant pump.

[0026] like Figures 1-6As shown, the locking assembly includes a vertical plate 13 and a fixed box 11, the vertical plate 13 is fixedly connected to one side of the first clamping block 3, a fixing groove 14 is opened on one side of the vertical plate 13, the fixed box 11 is fixedly connected to one side of the second clamping block 4, a through groove 15 is opened on one side of the fixed box 11, and the through groove 15 passes through the fixed box 11. A limiting plate 18 is slidably connected between the inner walls of the fixed box 11, and a spring 17 is fixedly connected between one side of the limiting plate 18 and the inner side of the fixed box 11. A pressing block 19 and a card block 16 are fixedly connected on both sides of the limiting plate 18 respectively. The pressing block 19 and the card block 16 are both slidably connected between the through groove 15 and the inner wall of the fixed box 11, and one end of the pressing block 19 and the card block 16 respectively extend to both sides of the fixed box 11, and one end of the card block 16 contacts the inner side of the fixing groove 14.

[0027] By manually pressing the button 19 to move between the inner walls of the through groove 15, and through the limit plate 18 to move between the inner walls of the fixed box 11, the spring 17 is squeezed while driving the clamping block 16 to move between the through groove 15 and the inner wall of the fixed box 11, thereby driving one end of the clamping block 16 to contact the inner side of the fixed groove 14 on one side of the vertical plate 13, thereby locking the first clamping block 3 and the second clamping block 4, further improving the efficiency of disassembly, assembly and maintenance of the corrosion-resistant pump.

[0028] The utility model provides a mechanical seal structure for a corrosion-resistant pump. The specific working principle is as follows: when the corrosion-resistant pump is installed and used, the output end of the pump body 1 and one end of the connecting pipe 2 are first inserted into the outer sides of the two ends of the corrosion-resistant inner pipe 10 at the bottom of the support block 8 respectively. Then, the connecting block 7 is rotated on the outer side of the connecting rod 12 and between the two fixed plates 6, so that the first clamping block 3 and the second clamping block 4 are in contact. Then, the pressing block 19 is manually pressed to move between the inner walls of the through groove 15, and the limiting plate 18 moves between the inner walls of the fixed box 11, thereby squeezing the spring 17 while driving the clamping block 16 to move between the through groove 15 and the inner wall of the fixed box 11. This drives one end of the clamping block 16 to come into contact with the inner side of the fixing groove 14 on one side of the vertical plate 13, thereby locking the first clamping block 3 and the second clamping block 4 at the connection between the pump body 1 and the connecting pipe 2, and then inflating the interior of the two sealing air bags 9 respectively through the two suction and exhaust devices 5, so that after the two sealing air bags 9 are expanded, the outer sides of the two sealing air bags 9 are both in contact with the inner sides of the first clamping block 3 and the second clamping block 4. At the same time, the inner sides of the two sealing air bags 9 squeeze the output end of the pump body 1 and one end of the connecting pipe 2 respectively, so that the inner sides of the output end of the pump body 1 and one end of the connecting pipe 2 are tightly fitted with the outer side of the corrosion-resistant inner tube 10, thereby completing the installation and use of the corrosion-resistant pump.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical seal structure for a corrosion-resistant pump, comprising a pump body (1), characterized in that: The output end of the pump body (1) is fixedly connected to a first clamping block (3) and a second clamping block (4); a connecting pipe (2) is fixedly connected between the inner walls of the first clamping block (3) and the second clamping block (4); a locking assembly is provided on one side of the first clamping block (3) and the second clamping block (4); the locking assembly is used to lock the first clamping block (3) and the second clamping block (4); the inner side of the first clamping block (3) is fixedly connected to a support block (8); the bottom of the support block (8) and the inner side of the first clamping block (3) are fixedly connected to a corrosion-resistant inner pipe (10); the outer side of the corrosion-resistant inner pipe (10) contacts the inner side of the pump body (1) and the connecting pipe (2).

2. A corrosion-resistant pump mechanical seal structure according to claim 1, characterized in that: The locking assembly comprises a vertical plate (13) and a fixing box (11), wherein the vertical plate (13) is fixedly connected to one side of the first clamping block (3), and a fixing groove (14) is provided on one side of the vertical plate (13); the fixing box (11) is fixedly connected to one side of the second clamping block (4), and a through groove (15) is provided on one side of the fixing box (11), and the through groove (15) passes through the fixing box (11).

3. A corrosion-resistant pump mechanical seal structure according to claim 2, characterized in that: A limiting plate (18) is slidably connected between the inner walls of the fixed box (11), a spring (17) is fixedly connected between one side of the limiting plate (18) and the inner side of the fixed box (11), and a pressing block (19) and a clamping block (16) are fixedly connected on both sides of the limiting plate (18), and both the pressing block (19) and the clamping block (16) are slidably connected between the through slot (15) and the inner wall of the fixed box (11), one end of the pressing block (19) and the clamping block (16) respectively extends to both sides of the fixed box (11), and one end of the clamping block (16) contacts the inner side of the fixed slot (14).

4. The corrosion-resistant pump mechanical seal structure according to claim 1, characterized in that: Sealing airbags (9) are fixedly connected to both sides of the support block (8) and between the inner walls of the first clamping block (3); the outer sides of the two sealing airbags (9) abut against the inner side of the second clamping block (4); and the inner sides of the two sealing airbags (9) abut against the output end of the pump body (1) and the connecting pipe (2), respectively.

5. A corrosion-resistant pump mechanical seal structure according to claim 4, characterized in that: Two air intake and exhaust devices (5) are fixedly mounted on the top of the first clamping block (3), and the output ends of the two air intake and exhaust devices (5) extend to the inner side of the first clamping block (3) and are respectively fixedly connected to the two sealed air bags (9), and the output ends of the two air intake and exhaust devices (5) are respectively connected to the interior of the two sealed air bags (9).

6. The corrosion-resistant pump mechanical seal structure according to claim 1, characterized in that: One side of the first clamping block (3) is fixedly connected to two fixing plates (6), a connecting rod (12) is fixedly connected between the two fixing plates (6), and one side of the second clamping block (4) is fixedly connected to a connecting block (7).

7. A corrosion-resistant pump mechanical seal structure according to claim 6, characterized in that: The connecting block (7) is rotatably connected to the outside of the connecting rod (12) and is located between the two fixing plates (6).

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