Sealing device for asphalt pump

Abstract

The utility model relates to the technical field of sealing of asphalt delivery pumps, and discloses a sealing device for an asphalt pump, including a base and a connecting pipe, wherein a motor and a pump body are fixedly connected to the top of the base, an output pipe is fixedly connected to the output end of the pump body, a mounting seat is fixedly connected to the outer periphery of the output pipe, a mounting head is fixedly connected to the outer periphery of the connecting pipe, an outer step groove and an inner step groove are provided on one side of the mounting head, a convex ring is fixedly connected between the outer step groove and the inner step groove, a sealing ring is fixedly connected to the outer side of the convex ring, a groove is provided on the inner side of the mounting seat, and a convex block is fixedly connected to the inner side of the mounting seat. In the utility model, the mounting seat and the mounting head can be clamped together by the mutual cooperation of the convex ring, the outer step groove, the inner step groove, the groove, the convex block and other structures, and the path required for the internal material to leak is increased, and then the sealing of the mounting head and the mounting seat is improved by the cooperation of the sealing gasket and the sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing of asphalt delivery pumps, in particular to a sealing device of an asphalt pump. Background Art

[0002] Asphalt pump is a positive displacement pump composed of a motor and an impeller. Its significant advantages are simple structure, small size, stable and reliable operation, small pressure pulsation, stable flow, low noise and high efficiency. It is used in conjunction with asphalt and heavy oil equipment. When the asphalt pump is connected to an external pipeline, a sealing structure is required to seal the connection between them.

[0003] In the existing asphalt pump and external pipeline connection, flange connection is often directly adopted, and the connection seam is usually directly sealed with a sealing ring. However, since the surface of the flange cannot be flattened during processing, a gap is easily generated between the sealing ring and the flange after the sealing ring is installed. Asphalt, heavy oil and other substances transported inside are easy to flow out of the gap, thereby affecting the normal transportation of the pump and making it inconvenient to use. Therefore, a sealing device for an asphalt pump is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a sealing device for an asphalt pump, aiming to improve the problem of poor sealing at the connection between the asphalt pump and the external pipeline in the prior art resulting in material leakage.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sealing device of an asphalt pump, comprising a base and a connecting pipe, the top of the base is fixedly connected to a motor and a pump body, the output end of the pump body is fixedly connected to an output pipe, the outer periphery of the output pipe is fixedly connected to a mounting seat, the outer periphery of the connecting pipe is fixedly connected to a mounting head, an outer step groove and an inner step groove are provided on one side of the mounting head, a convex ring is fixedly connected between the outer step groove and the inner step groove, a sealing ring is fixedly connected to the outer side of the convex ring, a groove is provided on the inner side of the mounting seat, a protrusion is fixedly connected to the inner side of the mounting seat, the protrusion is matched with the inner step groove, the convex ring is matched with the groove, and a clamping assembly is provided on the outer side of the connecting pipe.

[0006] As a further description of the above technical solution:

[0007] The clamping assembly includes a rotating rod and a positioning structure. The rotating rod is rotatably connected to the outside of the connecting tube. A fixed block is fixedly connected to the outside of the rotating rod. A rotating plate is rotatably connected to the outside of the fixed block. A clamping groove is opened on the outside of the mounting seat, and the rotating plate is clamped with the clamping groove.

[0008] As a further description of the above technical solution:

[0009] The positioning structure comprises a positioning ring, the positioning ring is fixedly connected to the outside of the connecting pipe, the outer periphery of the positioning ring is rotatably connected to a plurality of baffles, and the rotating rod is placed between the baffles and the connecting pipe.

[0010] As a further description of the above technical solution:

[0011] The inner step groove, the outer step groove and the outer side of the convex ring are all paved with sealing gaskets.

[0012] As a further description of the above technical solution:

[0013] The clamping slot is provided with a hook opening, and a barb is fixedly connected to the outer side of the rotating plate, and the barb is adapted to the hook opening.

[0014] As a further description of the above technical solution:

[0015] A notch is provided in the middle of the rotating plate, and the fixing block is rotatably connected to the middle of the notch.

[0016] As a further description of the above technical solution:

[0017] A placement groove is provided on the outer side of the positioning ring, and the baffle is rotatably connected to the middle part of the placement groove.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the mounting seat and the mounting head can be snapped together by the cooperation of the convex ring, the outer step groove, the inner step groove, the groove, the convex block and other structures, and the path required for the internal material to move is increased. Then, with the cooperation of the sealing gasket and the sealing ring laid between the outer step groove and the inner step groove, the gap between the mounting head and the mounting seat can be blocked, thereby avoiding the leakage of internal materials, thereby ensuring the sealing effect and being more convenient to use.

[0020] 2. In the utility model, the mounting seat and the mounting head can be conveniently connected by the mutual cooperation of the card slot, the rotating rod, the fixed block, the rotating plate, the baffle and the like, and the sealing ring and the sealing gasket are squeezed at the same time, so that the sealing effect of the asphalt pump is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional schematic diagram of a sealing device for an asphalt pump proposed by the utility model;

[0022] Figure 2 This is a structural schematic diagram of a convex ring of a sealing device for an asphalt pump proposed by the utility model;

[0023] Figure 3The utility model is a schematic diagram of the structure of a groove of a sealing device of an asphalt pump.

[0024] Legend:

[0025] 1. Base; 2. Motor; 3. Pump body; 4. Output pipe; 5. Mounting seat; 6. Connecting pipe; 7. Mounting head; 8. Convex ring; 9. Outer step groove; 10. Inner step groove; 11. Sealing ring; 12. Groove; 13. Bump; 14. Slot; 15. Turn rod; 16. Fixed block; 17. Rotating plate; 18. Positioning ring; 19. Baffle; 20. Notch; 21. Placement groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-Figure 3 The utility model provides an embodiment: a sealing device for an asphalt pump, including a base 1 and a connecting pipe 6, wherein a motor 2 and a pump body 3 are fixedly connected to the top of the base 1, an output pipe 4 is fixedly connected to the output end of the pump body 3, and the material transported by the pump body 3 is discharged from the output pipe 4 during operation, a mounting seat 5 is fixedly connected to the outer periphery of the output pipe 4, and a mounting head 7 is fixedly connected to the outer periphery of the connecting pipe 6, and the connection between the output pipe 4 and the connecting pipe 6 is achieved through the mounting seat 5 and the mounting head 7. An outer step groove 9 and an inner step groove 10 are provided on one side of the mounting head 7, and a convex ring 8 is fixedly connected between the outer step groove 9 and the inner step groove 10, and sealing gaskets are laid on the outer sides of the inner step groove 10, the outer step groove 9 and the convex ring 8, and by adding sealing gaskets, the gap between the mounting seat 5 and the mounting head 7 can be further blocked, thereby further improving the sealing effect. A sealing ring 11 is fixedly connected to the outside of the convex ring 8, a groove 12 is provided on the inside of the mounting seat 5, a bump 13 is fixedly connected to the inside of the mounting seat 5, and the bump 13 is matched with the inner step groove 10. After the inner step groove 10 and the bump 13 are engaged, the length of the gap between the mounting seat 5 and the mounting head 7 can be increased, thereby increasing the path required for the internal material to leak from the gap, making it more difficult to leak, thereby better ensuring the sealing effect. The convex ring 8 is matched with the groove 12. After the convex ring 8 and the groove 12 are engaged, the sealing ring 11 will be compressed and deformed to achieve the blocking of the gap between the mounting seat 5 and the mounting head 7.

[0028] Reference Figure 2, a clamping assembly is arranged on the outside of the connecting tube 6. The clamping assembly includes a rotating rod 15 and a positioning structure. The rotating rod 15 is rotatably connected to the outside of the connecting tube 6. A fixed block 16 is fixedly connected to the outside of the rotating rod 15. A rotating plate 17 is rotatably connected to the outside of the fixed block 16. A clamping groove 14 is provided on the outside of the mounting seat 5, and the rotating plate 17 is clamped with the clamping groove 14. After the rotating plate 17 is hung at the position of the clamping groove 14, the rotating plate 17 can be pulled back under the action of the fixed block 16 by simply rotating the rotating rod 15. At this time, the gap between the mounting seat 5 and the mounting head 7 can be reduced, thereby completing the docking. When the rotating plate 17 is pulled back, the sealing ring 11 and other structures will be squeezed to make the sealing more sufficient. The clamping groove 14 is provided with a hook mouth, and a barb is fixedly connected to the outside of the rotating plate 17, and the barb is adapted to the hook mouth. The stability of the connection between the clamping groove 14 and the rotating plate 17 can be further improved by the hook mouth and the barb. A notch 20 is provided in the middle of the rotating plate 17, and the fixing block 16 is rotatably connected in the middle of the notch 20. The notch 20 can limit the rotating plate 17 and the fixing block 16, so that the rotating plate 17 can rotate more smoothly.

[0029] Reference Figure 2-Figure 3 The positioning structure includes a positioning ring 18, which is fixedly connected to the outside of the connecting tube 6. The outer periphery of the positioning ring 18 is rotatably connected to a plurality of baffles 19. The rotating rod 15 is placed between the baffles 19 and the connecting tube 6. After the rotating rod 15 is rotated to a horizontal position, the baffles 19 only need to be moved so that the baffles 19 reach the outside of the rotating rod 15 to complete the positioning of the rotating rod 15 and prevent the rotating rod 15 from rebounding by itself, thereby ensuring the stability of the connection. A placement groove 21 is provided on the outside of the positioning ring 18, and the baffles 19 are rotatably connected to the middle of the placement groove 21. The baffles 19 can be placed through the placement groove 21, and the rotating rod 15 can be rotated to a horizontal position to facilitate the positioning operation.

[0030] Working principle: When in use, align the mounting seat 5 and the mounting head 7, and align the slot 14 and the rotating plate 17, then insert the mounting head 7 into the middle of the mounting seat 5, so that the convex ring 8 enters the groove 12 position, and the convex block 13 reaches the inner step groove 10 position, and then after the rotating plate 17 is hung at the slot 14 position, the rotating plate 17 is pulled back by rotating the rotating rod 15 under the action of the fixed block 16, and the connection between the mounting seat 5 and the mounting head 7 can be realized at this time, and the sealing ring 11 and other structures are squeezed to further improve the sealing between the mounting seat 5 and the mounting head 7. After the rotating rod 15 is rotated to the horizontal, the baffle 19 is rotated to position the end of the rotating rod 15, so as to prevent the rotating rod 15 from rebounding by itself, so as to ensure the stability of the connection, and the installation is simple, which can greatly improve the connection speed between the asphalt pump and the external pipeline, and is more convenient to use.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing device for an asphalt pump, comprising a base (1) and a connecting pipe (6), characterized in that: The top of the base (1) is fixedly connected with a motor (2) and a pump body (3); the output end of the pump body (3) is fixedly connected with an output pipe (4); the outer periphery of the output pipe (4) is fixedly connected with a mounting seat (5); the outer periphery of the connecting pipe (6) is fixedly connected with a mounting head (7); one side of the mounting head (7) is provided with an outer step groove (9) and an inner step groove (10); a convex ring (8) is fixedly connected between the outer step groove (9) and the inner step groove (10); a sealing ring (11) is fixedly connected to the outer side of the convex ring (8); a groove (12) is provided on the inner side of the mounting seat (5); a convex block (13) is fixedly connected to the inner side of the mounting seat (5); the convex block (13) is matched with the inner step groove (10); the convex ring (8) is matched with the groove (12); and a clamping assembly is provided on the outer side of the connecting pipe (6).

2. The sealing device for an asphalt pump according to claim 1, characterized in that: The clamping assembly comprises a rotating rod (15) and a positioning structure. The rotating rod (15) is rotatably connected to the outside of the connecting tube (6). A fixing block (16) is fixedly connected to the outside of the rotating rod (15). A rotating plate (17) is rotatably connected to the outside of the fixing block (16). A clamping groove (14) is provided on the outside of the mounting seat (5). The rotating plate (17) is clamped with the clamping groove (14).

3. The sealing device for an asphalt pump according to claim 2, characterized in that: The positioning structure comprises a positioning ring (18), the positioning ring (18) is fixedly connected to the outside of the connecting tube (6), the outer periphery of the positioning ring (18) is rotatably connected to a plurality of baffles (19), and the rotating rod (15) is placed between the baffles (19) and the connecting tube (6).

4. The sealing device for an asphalt pump according to claim 1, characterized in that: The inner step groove (10), the outer step groove (9) and the outer sides of the convex ring (8) are all provided with sealing gaskets.

5. The sealing device for an asphalt pump according to claim 2, characterized in that: The clamping slot (14) is provided with a hook opening, and a barb is fixedly connected to the outer side of the rotating plate (17), and the barb is adapted to the hook opening.

6. The sealing device for an asphalt pump according to claim 2, characterized in that: A notch (20) is provided in the middle of the rotating plate (17), and the fixing block (16) is rotatably connected to the middle of the notch (20).

7. The sealing device for an asphalt pump according to claim 3, characterized in that: A placement groove (21) is provided on the outer side of the positioning ring (18), and the baffle (19) is rotatably connected to the middle part of the placement groove (21).

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