Pump head of chemical pump

Abstract

The utility model discloses a chemical pump head which comprises a pump body, one end of the pump body is fixedly connected with a connecting piece, one end of the connecting piece is provided with a pump head body, the pump head body is sleeved with a first protective ring and a second protective ring, and the two sides of the first protective ring are fixedly connected with first auxiliary plates. And second auxiliary plates are fixedly connected to the two sides of the second protective ring, an auxiliary structure is arranged in the first protective ring, and a first flange is connected to the exterior of the connecting piece. According to the pump head, the first protective ring, the second protective ring, the clamping structure, the first auxiliary plate, the second auxiliary plate and the vertical plate are arranged, the pump head can be rapidly assembled through the cooperation of the vertical plate, the inclined plate and the spring, the connecting position of the first flange and the second flange can be conveniently protected, and the service life of the pump head is prolonged. Bolt rusting caused by long-time exposure of the first flange and the second flange is avoided, the first flange and the second flange are prevented from making contact with the corrosive environment or water, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical pumps, in particular to a chemical pump head. Background Art

[0002] A chemical pump is a mechanical equipment used to transport various chemicals, corrosive media and liquids. It is mainly used in petrochemical, metallurgy, pharmaceutical, food, water treatment and other fields. The main features of a chemical pump are corrosion resistance and high temperature resistance, and it can cope with various complex working environments. The pump head is an indispensable component of a chemical pump. The pump head can form a single flow channel to transport liquids, and the pump head and the chemical pump are mainly connected by flanges. However, most of the connections of the pump head do not have a protective structure. When the flange is exposed to the outside for a long time, it is prone to rust. When the flange is rusted, it is prone to leakage, which is easy to contaminate the medium or cause damage to the chemical pump. Utility Model Content

[0003] The purpose of the utility model is to provide a chemical pump head to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a chemical pump head, comprising a pump body, one end of the pump body being fixedly connected to a connecting piece, one end of the connecting piece being provided with a pump head body, a protective ring 1 and a protective ring 2 being externally connected to the pump head body, auxiliary plates 1 being fixedly connected on both sides of the protective ring 1, auxiliary plates 2 being fixedly connected on both sides of the protective ring 2, an auxiliary structure being provided inside the protective ring 1, a flange 1 being externally connected to the connecting piece, flange 2 being externally fixedly connected to the pump head body, and bolts being provided inside the flange 1;

[0005] A vertical plate is fixedly connected to the top of the auxiliary plate 2, a slot is provided in the vertical plate, a clamping structure is fixedly connected to the top of the auxiliary plate 1, the clamping structure is clamped in the slot, the clamping structure includes a concave plate and an inclined plate, a fixed rod is fixedly connected to the left side of the inclined plate, a spring is connected to the outer surface of the fixed rod, and one end of the fixed rod is fixedly connected to a fixed disk.

[0006] As a further preferred embodiment of the present technical solution, the concave plate is fixedly connected to the auxiliary plate 1, the auxiliary plate 2 overlaps the auxiliary plate 1, the vertical plate is clamped in the auxiliary plate 1, and the inclined plate is slidably connected in the concave plate.

[0007] As a further preferred embodiment of the present technical solution, the fixing rod is slidably connected in the concave plate, the fixing plate is fixedly connected to the outside of the concave plate via a spring, and the inclined plate is clamped in the clamping groove.

[0008] As a further preferred embodiment of the present technical solution, a rubber ring is fixedly connected to the inner portion of the flange 1, the rubber ring is clamped in the inner portion of the flange 2, and the flange 1 is connected to the flange 2 by bolts.

[0009] As a further preferred embodiment of the present technical solution, the bolt is composed of a threaded rod and two nuts, the flange 1 is welded integrally with the outer surface of the connecting piece, and the flange 2 is welded integrally with the outer surface of the pump head body.

[0010] As a further preferred embodiment of the present technical solution, the auxiliary structure includes a threaded bolt, a sealing plate and a threaded nut, the threaded bolt is fixedly connected above the protective ring 1, the sealing plate is clamped in the protective ring 1, and the threaded bolt is clamped in the sealing plate.

[0011] As a further preferred embodiment of the present technical solution, the threaded nut is threadedly connected to the outside of the threaded bolt, the threaded bolt is connected to the sealing plate through the threaded nut, and a plurality of limit blocks are provided in the sealing plate.

[0012] The utility model provides a chemical pump head, which has the following beneficial effects:

[0013] (1) The utility model sets a protective ring 1, a protective ring 2, a clamping structure, an auxiliary plate 1, an auxiliary plate 2 and a vertical plate. When the protective ring 1 is clamped with the protective ring 2, the vertical plate above the auxiliary plate 2 will be interlaced with the auxiliary plate 1, and the oblique side of the vertical plate will contact the oblique plate. When the oblique plate is subjected to thrust, it will drive the fixed rod to slide in the concave plate. When the fixed plate moves, it will drive the spring to deform. When the auxiliary plate 1 is completely fitted with the auxiliary plate 2, the oblique plate will be reset by the spring after losing resistance. After reset, the oblique plate will be clamped in the clamping groove. The pump head can realize the function of rapid assembly of the protective ring 1 and the protective ring 2 through the cooperation between the vertical plate, the oblique plate and the spring, so as to play a role in protecting the connection between the flange 1 and the flange 2, avoid the phenomenon of rusting of the bolts caused by the long-term exposure of the flange 1 and the flange 2, and prevent the flange 1 and the flange 2 from contacting the corrosive environment or moisture, thereby preventing the rust of the bolt part and extending the service life of the equipment.

[0014] (2) The utility model sets an auxiliary structure. After the sealing plate and the threaded bolt are inserted, the thread nut will rotate on the surface of the threaded bolt, and the thread nut will lock the sealing plate. Then, when the protective ring 1 and the protective ring 2 are mounted on the surfaces of the flange 1 and the flange 2, the limit block in the sealing plate will be clamped with the bolt. The nut in the bolt can be positioned by the limit block, avoiding the phenomenon that the nut in the bolt becomes loose due to vibration during operation, thereby ensuring the sealing of the pump head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the exploded connecting piece of the present invention;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the explosion protection ring of the utility model;

[0018] Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of the clamping structure of the present invention;

[0019] In the figure: 1. Pump body; 2. Connecting piece; 3. Pump head body; 4. Protective ring 1; 5. Protective ring 2; 6. Auxiliary structure; 601. Threaded bolt; 602. Sealing plate; 603. Threaded nut; 604. Limit block; 7. Clamping structure; 701. Concave plate; 702. Inclined plate; 703. Fixed rod; 704. Fixed plate; 705. Spring; 8. Auxiliary plate 1; 9. Auxiliary plate 2; 10. Flange 1; 11. Flange 2; 12. Bolt; 13. Rubber ring; 14. Vertical plate; 15. Slot. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model provides a technical solution: Figure 1 and Figure 4 As shown, in this embodiment, a chemical pump head includes a pump body 1, one end of the pump body 1 is fixedly connected to a connecting member 2, one end of the connecting member 2 is provided with a pump head body 3, a protective ring 4 and a protective ring 2 5 are connected to the outer shell of the pump head body 3, both sides of the protective ring 1 4 are fixedly connected to an auxiliary plate 1 8, both sides of the protective ring 2 5 are fixedly connected to an auxiliary plate 2 9, an auxiliary structure 6 is provided in the protective ring 1 4, the connecting member 2 is externally connected to a flange 10, the pump head body 3 is externally fixedly connected to a flange 2 11, and a bolt 12 is provided in the flange 10;

[0022] A vertical plate 14 is fixedly connected to the top of the auxiliary plate 2 9, and a slot 15 is provided in the vertical plate 14. A clamping structure 7 is fixedly connected to the top of the auxiliary plate 1 8, and the clamping structure 7 is clamped in the slot 15. The clamping structure 7 includes a concave plate 701 and an inclined plate 702. A fixed rod 703 is fixedly connected to the left side of the inclined plate 702. A spring 705 is connected to the outer outer surface of the fixed rod 703. One end of the fixed rod 703 is fixedly connected to a fixed disk 704.

[0023] like Figure 2-4As shown, the concave plate 701 is fixedly connected to the auxiliary plate 8, the auxiliary plate 2 9 is overlapped with the auxiliary plate 8, the vertical plate 14 is clamped in the auxiliary plate 8, the inclined plate 702 is slidably connected in the concave plate 701, the fixed rod 703 is slidably connected in the concave plate 701, the fixed plate 704 is fixedly connected to the outside of the concave plate 701 through a spring 705, the inclined plate 702 is clamped in the clamping groove 15, the flange 10 is fixedly connected with a rubber ring 13, the rubber ring 13 is clamped in the flange 2 11, the flange 10 is connected to the flange 2 11 by a bolt 12, the bolt 12 is composed of a threaded rod and two nuts, the flange 10 is welded to the outer surface of the connecting piece 2, and the flange 2 11 is welded to the outer surface of the pump head body 3.

[0024] By setting the spring 705, the rubber ring 13 and the slot 15, the pump body 1 will be connected to the pump head body 3 through the connecting piece 2, and the flange 10 on the surface of the connecting piece 2 will fit with the flange 2 11, and the rubber ring 13 in the flange 10 will be snapped into the flange 2 11, so that the rubber ring 13 has a certain sealing effect on the connection between the flange 10 and the flange 2 11, thereby preventing the liquid from leaking during transportation. When the inclined plate 702 is affected by the thrust, the inclined plate 702 will move in the concave plate 701, and the spring 705 will be deformed accordingly, so that the spring 705 plays a certain supporting role in the movement of the inclined plate 702. When the inclined plate 702 loses resistance, it will be reset by the spring 705.

[0025] like Figure 2 and Figure 3 As shown, the auxiliary structure 6 includes a threaded bolt 601, a sealing plate 602 and a threaded nut 603. The threaded bolt 601 is fixedly connected to the top of the protective ring 4, the sealing plate 602 is clamped in the protective ring 4, the threaded bolt 601 is clamped in the sealing plate 602, the threaded nut 603 is threadedly connected to the outside of the threaded bolt 601, the threaded bolt 601 is connected to the sealing plate 602 through the threaded nut 603, and a number of limit blocks 604 are provided in the sealing plate 602.

[0026] By setting up the sealing plate 602 and the limit block 604, when the sealing plate 602 is clamped on the surface of the protective ring 4, the sealing plate 602 will be assembled with the protective ring 4 through the threaded bolt 601 and the threaded nut 603, so that the sealing plate 602 and the protective ring 4 can better protect the flange 10 and the flange 2 11, and the limit block 604 will be clamped with the corresponding bolt 12 to avoid the phenomenon of the nut in the bolt 12 becoming loose due to vibration during operation, thereby ensuring the sealing of the pump head.

[0027] The utility model provides a chemical pump head, the specific working principle of which is as follows:

[0028] When the pump head is used in conjunction with the pump body 1, the pump body 1 will be connected to the pump head body 3 through the connecting piece 2, and the flange 10 on the surface of the connecting piece 2 will fit with the flange 2 11, and the rubber ring 13 in the flange 10 will be snapped into the flange 2 11, and the flange 10 and the flange 2 11 will be fixedly connected by the bolts 12, and then the sealing plate 602 will be snapped into the surface of the protective ring 4, and the sealing plate 602 will be inserted into the threaded bolt 601. When the sealing plate 602 is completely fitted with the protective ring 14, the threaded nut 603 will rotate on the surface of the threaded bolt 601, and the threaded nut 603 will lock the sealing plate 602, and then the protective ring 14 and the protective ring 2 5 will be sleeved on the surfaces of the flange 10 and the flange 2 11, and the limit block 604 in the sealing plate 602 will be snapped into the bolt 12;

[0029] When the protective ring 1 4 is engaged with the protective ring 2 5, the vertical plate 14 above the auxiliary plate 2 9 will be interlaced with the auxiliary plate 1 8, and the oblique edge of the vertical plate 14 will contact the inclined plate 702. When the inclined plate 702 is pushed, it will drive the fixing rod 703 to slide in the concave plate 701. The fixed plate 704 will drive the spring 705 to deform when it moves. When the auxiliary plate 1 8 and the auxiliary plate 2 9 are completely fitted together, the inclined plate 702 will lose resistance and will be reset by the spring 705. After reset, the inclined plate 702 will be engaged in the slot 15.

[0030] 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 chemical pump head, comprising a pump body (1), characterized in that: One end of the pump body (1) is fixedly connected to a connecting piece (2), one end of the connecting piece (2) is provided with a pump head body (3), the outer surface of the pump head body (3) is connected with a protective ring 1 (4) and a protective ring 2 (5), both sides of the protective ring 1 (4) are fixedly connected to an auxiliary plate 1 (8), both sides of the protective ring 2 (5) are fixedly connected to an auxiliary plate 2 (9), an auxiliary structure (6) is provided inside the protective ring 1 (4), the outer surface of the connecting piece (2) is connected to a flange 1 (10), the outer surface of the pump head body (3) is fixedly connected to a flange 2 (11), and the inner surface of the flange 1 (10) is provided with a bolt (12); The upper part of the auxiliary plate 2 (9) is fixedly connected to a vertical plate (14), a slot (15) is provided in the vertical plate (14), the upper part of the auxiliary plate 1 (8) is fixedly connected to a clamping structure (7), the clamping structure (7) is clamped in the slot (15), the clamping structure (7) comprises a concave plate (701) and an inclined plate (702), the left side of the inclined plate (702) is fixedly connected to a fixed rod (703), the outer surface of the fixed rod (703) is connected to a spring (705), and one end of the fixed rod (703) is fixedly connected to a fixed disk (704).

2. A chemical pump head according to claim 1, characterized in that: The concave plate (701) is fixedly connected to the auxiliary plate (8), the auxiliary plate (9) is overlapped with the auxiliary plate (8), the vertical plate (14) is clamped in the auxiliary plate (8), and the inclined plate (702) is slidably connected in the concave plate (701).

3. A chemical pump head according to claim 2, characterized in that: The fixing rod (703) is slidably connected in the concave plate (701), the fixing plate (704) is fixedly connected to the outside of the concave plate (701) via a spring (705), and the inclined plate (702) is clamped in the clamping groove (15).

4. A chemical pump head according to claim 1, characterized in that: A rubber ring (13) is fixedly connected inside the flange 1 (10), and the rubber ring (13) is clamped inside the flange 2 (11). The flange 1 (10) is connected to the flange 2 (11) through bolts (12).

5. A chemical pump head according to claim 1, characterized in that: The bolt (12) is composed of a threaded rod and two nuts. The first flange (10) is welded to the outer surface of the connecting piece (2) and the second flange (11) is welded to the outer surface of the pump head body (3).

6. A chemical pump head according to claim 1, characterized in that: The auxiliary structure (6) comprises a threaded bolt (601), a sealing plate (602) and a threaded nut (603); the threaded bolt (601) is fixedly connected above the protective ring (4); the sealing plate (602) is clamped in the protective ring (4); and the threaded bolt (601) is clamped in the sealing plate (602).

7. A chemical pump head according to claim 6, characterized in that: The threaded nut (603) is threadedly connected to the outside of the threaded bolt (601), and the threaded bolt (601) is connected to the sealing plate (602) through the threaded nut (603). A plurality of limiting blocks (604) are provided in the sealing plate (602).

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