Acid and alkali resistant fluorine-lined centrifugal pump

Abstract

The utility model relates to the technical field of centrifugal pumps, in particular to an acid and alkali resistant fluorine-lined centrifugal pump which comprises a mounting base and a centrifugal pump body, the centrifugal pump body is temporarily fixed on the mounting base, a pair of rectangular mounting plates is further arranged on the centrifugal pump body, and a pair of symmetrical trapezoidal limiting blocks is arranged on the upper surface of the mounting base. An arc-shaped butt joint block is arranged in the mounting base, a butt joint strip is arranged on the arc face of the arc-shaped butt joint block in a penetrating mode, a pair of rectangular mounting blocks is further arranged on the vertical face of the arc-shaped butt joint block, the vertical faces of the pair of rectangular mounting blocks are connected with the same cylindrical rod in a penetrating mode, and a connecting rope is arranged on a rod body of the cylindrical rod. A U-shaped mounting frame is further arranged in the mounting base, the centrifugal pump adopts a clamping connection mode which is different from a traditional nut connection mode, the possibility that a connection point is loosened or even falls off due to vibration of the centrifugal pump is avoided, and the stability and the mounting performance of the centrifugal pump during working are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal pump technical field, concretely relates to acid and alkali resistant fluorine lining centrifugal pump. BACKGROUND

[0002] Fluoroplastics have excellent chemical stability, corrosion resistance, high and low temperature resistance and other characteristics, common fluoroplastics such as polytetrafluoroethylene (PTFE), polytetrafluoroethylene (FEP) and the like can remain stable in various strong acids, strong bases, strong oxidizing agents and other harsh chemical environments, and almost do not react with any chemical substances, the fluoroplastics are applied to the inner lining of centrifugal pump, can effectively isolate the contact between pump body and corrosive medium, protect the metal parts of pump from corrosion, greatly improve the service life and reliability of pump.

[0003] Traditional centrifugal pumps usually adopt metal materials, such as cast iron, stainless steel and the like. Although stainless steel and other materials have certain corrosion resistance, but for some high concentration, strong oxidizing acid, alkali medium, its corrosion resistance is still limited. After long-term contact with these media, the metal surface will be corroded, rust spots, perforation and other phenomena occur, which seriously affects the sealing performance and performance of the pump.

[0004] The fixing mode of the existing centrifugal pump will adopt nut fixing, the centrifugal pump will vibrate during operation, and long-term vibration may cause the nut to gradually loosen. Once the nut is loose, the components of the centrifugal pump will not be connected tightly, which may cause problems such as component displacement, collision, etc., affecting the normal operation of the pump, and even may cause equipment damage. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned fixing mode of the existing centrifugal pump, the nut is fixed, the centrifugal pump will vibrate during operation, and long-term vibration may cause the nut to gradually loosen. Once the nut is loose, the components of the centrifugal pump will not be connected tightly, which may cause problems such as component displacement, collision, etc., affecting the normal operation of the pump, and even may cause equipment damage defects;

[0006] To solve the above technical problems, the utility model provides the following technical scheme: acid and alkali resistant fluorine lining centrifugal pump, including: installation base and centrifugal pump main body, the installation base temporarily fixes the centrifugal pump main body, a pair of rectangular mounting plates are also arranged on the centrifugal pump main body, a pair of mutually symmetrical trapezoidal limit blocks are arranged on the upper surface of the installation base, an arc-shaped butt joint block is arranged in the installation base, a butt joint strip is arranged in the arc surface of the arc-shaped butt joint block, a pair of rectangular mounting blocks are arranged on the vertical surface of the arc-shaped butt joint block, and the vertical surface of the pair of rectangular mounting blocks is connected with the same cylindrical rod, and the rod body of the cylindrical rod is provided with a connecting rope, and a U-shaped mounting frame is further arranged in the installation base.

[0007] As a preferred scheme of the acid and alkali resistant fluorine lining centrifugal pump, the intersection of the connecting rope and the mounting base is provided with a rectangular groove, and a pair of cylindrical guide rods are further arranged at the vertical surface of the rectangular groove.

[0008] As a preferred scheme of the acid and alkali resistant fluorine lining centrifugal pump, a cylindrical mounting rod is arranged at the vertical surface of the U-shaped mounting frame, a winding wheel is further arranged at the rod body in the U-shaped mounting frame, and the winding wheel is wound with the connecting rope.

[0009] As a preferred scheme of the acid and alkali resistant fluorine lining centrifugal pump, a mounting piece is further arranged at the vertical surface of the U-shaped mounting frame, and a rotating rod is rotatably connected to the vertical surface of the mounting piece, the rod bodies of the cylindrical mounting rod and the rotating rod are both provided with penetrated intermeshing bevel gears, and a rectangular moving frame is arranged through the U-shaped mounting frame.

[0010] As a preferred scheme of the acid and alkali resistant fluorine lining centrifugal pump, a memory spring is further arranged in the rectangular moving frame, one end of the memory spring is connected to the vertical surface of the rectangular moving frame, the other end of the memory spring is connected to a rectangular moving plate, a plurality of guide plates with same spacing are arranged on the upper surface of the rectangular moving plate, a cylindrical guide rod is further arranged at the vertical surface of the rectangular moving frame, and a dismounting structure is further arranged at the vertical surface of the U-shaped mounting frame.

[0011] As a preferred scheme of the acid and alkali resistant fluorine lining centrifugal pump, the dismounting structure comprises a rectangular moving sleeve and a rectangular moving block, the rectangular moving block is non-slidly connected to the inside of the rectangular moving sleeve, the lower surface of the rectangular moving block is also provided with a guide plate, a threaded rod is rotatably connected to the vertical surface of the rectangular moving block, and a temporary fixing block is arranged at the end of the threaded rod away from the rectangular moving block.

[0012] As a preferred scheme of the acid and alkali resistant fluorine lining centrifugal pump, the outside of the mounting base is wrapped with a rubber sleeve, and the vertical surface of the rubber sleeve is rotatably connected to a butt nut.

[0013] Compared with the known prior art, the technical scheme of the acid and alkali resistant fluorine lining centrifugal pump has the following beneficial effects:

[0014] 1. The centrifugal pump adopts a clamping connection mode, which is different from the traditional nut connection, and the device will not be loose or even fall off due to vibration, thereby ensuring the stability and installation of the centrifugal pump during work.

[0015] 2. The outer part of the installation base is also wrapped with a rubber sleeve, when the centrifugal pump works, the vibration generated can also be absorbed by the rubber sleeve, and the rubber sleeve wrapped on the outside can also play a protective role, and when the installation base is carried, the rubber sleeve can well play a collision-proof effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the structure of the installation base of the present application;

[0019] Figure 3 It is a schematic diagram of the internal structure of the installation base of the present application;

[0020] Figure 4 It is a schematic diagram of the structure of the U-shaped installation frame of the present application;

[0021] Figure 5 It is a schematic diagram of the connection structure of the U-shaped installation frame of the present application;

[0022] Figure 6 It is a schematic diagram of the disassembly structure of the present application.

[0023] The numbers in the figure represent: 1, installation base; 2, centrifugal pump body; 3, rectangular mounting plate; 4, trapezoidal limiting block; 5, arc-shaped butt joint block; 6, rectangular mounting block; 7, connecting rope; 8, U-shaped installation frame; 9, rectangular recess; 10, cylindrical mounting rod; 11, winding wheel; 12, bevel gear; 13, rectangular moving frame; 14, memory spring; 15, rectangular moving plate; 16, cylindrical guide rod; 17, disassembly structure; 18, rectangular moving sleeve; 19, rectangular moving block; 20, threaded rod; 21, temporary fixing block; 22, rubber sleeve; 23, butt joint nut. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are 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.

[0025] The utility model will be further described in combination with embodiments. Embodiment 1

[0026] Referring to Figures 1-6 For the first embodiment of the utility model, acid and alkali resistant fluorine lining centrifugal pump is disclosed, including: installation base 1 and centrifugal pump main body 2, temporarily fixed on the installation base 1 centrifugal pump main body 2, still be provided with a pair of rectangular mounting plate 3 on the centrifugal pump main body 2, the upper surface of installation base 1 is provided with a pair of mutually symmetrical trapezoidal limit block 4, the inside of installation base 1 is provided with arc abutment block 5, and the arc surface of arc abutment block 5 is provided with abutment strip, and a pair of rectangular mounting block 6 is further provided on the vertical surface of arc abutment block 5, and the vertical surface of a pair of rectangular mounting block 6 is connected with the same cylindrical rod, and the rod body of cylindrical rod is provided with connecting rope 7, the inside of installation base 1 is further provided with U-shaped mounting frame 8, and the bottom surface of the inside of installation base 1 is further provided with a circular rod, and the circular rod penetrates the arc abutment block 5, and the lower surface of arc abutment block 5 is further provided with a push spring.

[0027] The intersection of connecting rope 7 and installation base 1 is provided with rectangular groove 9, and a pair of cylindrical guide rods are further provided on the vertical surface of the inside of rectangular groove 9, cylindrical mounting rod 10 is provided through the vertical surface of U-shaped mounting frame 8, and the rod body inside U-shaped mounting frame 8 is further provided with penetrated winding wheel 11, and the rod body of winding wheel 11 is wound with connecting rope 7, because the rod body of cylindrical mounting rod 10 is further provided with gear column away from bevel gear 12, and the gear column and the guide plate provided on the lower surface of rectangular moving block 19 are also in meshing relationship.

[0028] The vertical surface of U-shaped mounting frame 8 is further provided with a mounting sheet, and the vertical surface of the mounting sheet is rotatably connected with a rotating rod, and the rod body of cylindrical mounting rod 10 and rotating rod is provided with penetrated meshing bevel gear 12, rectangular moving frame 13 is provided through U-shaped mounting frame 8, and a pair of rubber pads are further provided on the vertical surface of the inside of rectangular moving frame 13.

[0029] The interior of the rectangular moving frame 13 is also provided with a memory spring 14, one end of the memory spring 14 is connected to the vertical surface of the rectangular moving frame 13, and the other end of the memory spring 14 is connected to a rectangular moving plate 15, and the upper surface of the rectangular moving plate 15 is provided with a plurality of guide plates with the same spacing, and the vertical surface of the rectangular moving frame 13 is also provided with a cylindrical guide rod 16, and the vertical surface of the U-shaped mounting frame 8 is also provided with a disassembly structure 17.

[0030] The disassembly structure 17 comprises a rectangular moving sleeve 18 and a rectangular moving block 19, the inner surface of the rectangular moving sleeve 18 is non-slidly connected to the rectangular moving block 19, the lower surface of the rectangular moving block 19 is also provided with a guide plate, and the vertical surface of the rectangular moving block 19 is rotatably connected to a threaded rod 20, and the end of the threaded rod 20 away from the rectangular moving block 19 is provided with a temporary fixing block 21.

[0031] In use, first align the arc-shaped butt joint block 5 through the hole provided on the rectangular mounting plate 3, because the arc-shaped butt joint block 5 is provided with a butt joint strip on the arc surface, after the rectangular mounting plate 3 contacts the butt joint strip, due to the weight of the centrifugal pump itself, the arc-shaped butt joint block 5 will descend, and as the arc-shaped butt joint block 5 descends, the connecting rope 7 in the originally taut state will loosen, when the connecting rope 7 loosens, the memory spring 14 will lose the blocking force, thereby gradually pushing the rectangular moving plate 15, because the upper surface of the rectangular moving plate 15 is provided with a plurality of guide plates with the same spacing, and the plurality of guide plates and the bevel gears 12 are in meshing relationship, when the rectangular moving plate 15 moves, a pair of meshing bevel gears 12 will rotate, so that the cylindrical mounting rod 10 also rotates;

[0032] Because the rod body of the cylindrical mounting rod 10 away from the bevel gears 12 is also provided with a gear column, and the gear column and the guide plate provided on the lower surface of the rectangular moving block 19 are also in meshing relationship, as the gear column rotates, the rectangular moving block 19 will be pushed, so that the temporary fixing block 21 enters the butt joint hole provided on the vertical surface of the rectangular mounting plate 3, thereby achieving fixation. Note that the vertical surface inside the rectangular moving frame 13 is also provided with a pair of rubber pads, which have friction. After the rectangular moving plate 15 contacts the rubber pads, the pushing force speed formed by the memory spring 14 will be reduced, thereby ensuring that during the process of lowering the centrifugal pump, the phenomenon that the centrifugal pump cannot be temporarily fixed due to hoisting tools will not occur. Example 2

[0033] Reference Figure 1For the second embodiment of the utility model, the embodiment is different from the first embodiment: the outer part of the mounting base 1 is wrapped with a rubber sleeve 22, the vertical surface of the rubber sleeve 22 is rotationally connected with a butt nut 23, and a circular ring sleeve is provided through the rubber sleeve 22, the vertical surface of the mounting base 1 is provided with a circular hole, and a threaded groove is provided in the inside of the circular hole, and the threaded groove and the thread on the butt nut 23 are in meshing relationship.

[0034] In use, the rubber sleeve 22 is first sleeved on the outer part of the mounting base 1, because the vertical surface of the rubber sleeve 22 is rotationally connected with the butt nut 23, and the circular ring sleeve is provided through the rubber sleeve 22, the vertical surface of the mounting base 1 is provided with a circular hole, and a threaded groove is provided in the inside of the circular hole, and the threaded groove and the thread on the butt nut 23 are in meshing relationship, then the threaded end of the butt nut 23 is aligned with the circular hole and mounted, then the embodiment 1 is followed.

[0035] The rest of the structure is the same as that of the embodiment 1.

[0036] The above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the utility model.

Claims

1. An acid and alkali resistant fluoropolymer-lined centrifugal pump, characterized in that... The system includes: a mounting base (1) and a centrifugal pump body (2). The centrifugal pump body (2) is temporarily fixed on the mounting base (1). A pair of rectangular mounting plates (3) are also provided on the centrifugal pump body (2). A pair of symmetrical trapezoidal limiting blocks (4) are provided on the upper surface of the mounting base (1). An arc-shaped connecting block (5) is provided inside the mounting base (1). A connecting strip is provided through the arc surface of the arc-shaped connecting block (5). A pair of rectangular mounting blocks (6) are also provided on the vertical surface of the arc-shaped connecting block (5). The vertical surface of the pair of rectangular mounting blocks (6) is connected through the same cylindrical rod. A connecting rope (7) is provided on the rod body of the cylindrical rod. A U-shaped mounting frame (8) is also provided inside the mounting base (1).

2. The acid and alkali resistant fluoropolymer-lined centrifugal pump according to claim 1, characterized in that, A rectangular groove (9) is provided at the intersection of the connecting rope (7) and the mounting base (1), and a pair of cylindrical guide rods are also provided on the vertical surface inside the rectangular groove (9).

3. The acid and alkali resistant fluoropolymer-lined centrifugal pump according to claim 1, characterized in that, A cylindrical mounting rod (10) is provided through the vertical surface of the U-shaped mounting frame (8). A winding wheel (11) is also provided through the rod body of the cylindrical mounting rod (10) inside the U-shaped mounting frame (8). A connecting rope (7) is wound on the rod body of the winding wheel (11).

4. The acid and alkali resistant fluoropolymer-lined centrifugal pump according to claim 3, characterized in that, The vertical surface of the U-shaped mounting frame (8) is also provided with a mounting plate, and the vertical surface of the mounting plate is rotatably connected to a rotating rod. Both the cylindrical mounting rod (10) and the rotating rod are provided with intermeshing bevel gears (12) that are penetrated through them. A rectangular moving frame (13) is provided through the U-shaped mounting frame (8).

5. The acid and alkali resistant fluoropolymer-lined centrifugal pump according to claim 4, characterized in that, The rectangular moving frame (13) is also provided with a memory spring (14) inside. One end of the memory spring (14) is connected to the vertical surface of the rectangular moving frame (13), and the other end of the memory spring (14) is connected to the rectangular moving plate (15). The upper surface of the rectangular moving plate (15) is provided with several guide plates with the same spacing. The vertical surface of the rectangular moving frame (13) is also provided with a cylindrical guide rod (16). The vertical surface of the U-shaped mounting frame (8) is also provided with a disassembly structure (17).

6. The acid and alkali resistant fluoropolymer-lined centrifugal pump according to claim 5, characterized in that, The disassembly structure (17) includes: a rectangular movable sleeve (18) and a rectangular movable block (19). The rectangular movable sleeve (18) is connected to the rectangular movable block (19) without sliding. A guide plate is also provided on the lower surface of the rectangular movable block (19). A threaded rod (20) is rotatably connected to the vertical surface of the rectangular movable block (19). A temporary fixing block (21) is provided at the end of the threaded rod (20) away from the rectangular movable block (19).

7. The acid and alkali resistant fluoropolymer-lined centrifugal pump according to claim 1, characterized in that, The mounting base (1) is wrapped with a rubber sleeve (22), and a mating nut (23) is rotatably connected to the vertical surface of the rubber sleeve (22).

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