Fluorine-lined centrifugal pump drainage structure

Abstract

The utility model provides a fluorine lining centrifugal pump drainage structure which comprises a pump shell, a sealing nut, a drainage bolt and a nut gland, a stepped hole is formed in the pump shell, the sealing nut is arranged in the stepped hole, the nut gland is fixed with the pump shell and tightly presses the sealing nut, a through hole is formed in the nut gland, and the drainage bolt is arranged in the through hole. The liquid drainage bolt penetrates through a through hole in the nut gland and is in threaded connection with the sealing nut, a liquid drainage hole is formed by a lower hole of the stepped hole, a threaded hole of the sealing nut and the through hole of the nut gland, and the auxiliary seat is movably arranged on the pump shell. The auxiliary seat is used for moving to the head of the liquid drainage bolt when the liquid drainage bolt is separated from the sealing nut, the liquid drainage bolt does not need to be manually screwed to be separated from the sealing nut every time when the liquid drainage bolt is separated from the sealing nut, and slipping and / or pain are / is not prone to occurring in the operation process. Tools do not need to be carried in advance when the drainage bolt is separated from the sealing nut every time, so that the operation is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluorine lining centrifugal pump technical field, concretely relates to a fluorine lining centrifugal pump liquid discharge structure. BACKGROUND

[0002] A fluorine lining centrifugal pump liquid discharge structure disclosed by Chinese patent application No. CN202021409926.3 comprises a pump shell, a sealing nut, a liquid discharge bolt and a nut gland, a stepped hole is arranged on the pump shell, the sealing nut is arranged in the stepped hole, the nut gland is fixed with the pump shell and presses the sealing nut tightly, a through hole is arranged on the nut gland, the liquid discharge bolt is screwed with the sealing nut through the through hole on the nut gland, and the lower hole of the stepped hole, the threaded hole of the sealing nut and the through hole of the nut gland constitute a liquid discharge hole.

[0003] Although the above-mentioned patent can solve the corresponding technical problems, there are still some defects in the use process:

[0004] The liquid discharge bolt and the sealing nut need to be separated by hand every time the operation is carried out, and it is easy to slip and / or painful during the hand-tightening process;

[0005] The liquid discharge bolt and the sealing nut need to be operated after carrying tools every time, which is not convenient. UTILITY MODEL CONTENTS

[0006] The utility model aims at the defects and deficiencies of the prior art, and provides a fluorine lining centrifugal pump liquid discharge structure.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A fluorine lining centrifugal pump liquid discharge structure, comprising a pump shell, a sealing nut, a liquid discharge bolt and a nut gland, a stepped hole is arranged on the pump shell, the sealing nut is arranged in the stepped hole, the nut gland is fixed with the pump shell and presses the sealing nut tightly, a through hole is arranged on the nut gland, the liquid discharge bolt is screwed with the sealing nut through the through hole on the nut gland, and the lower hole of the stepped hole, the threaded hole of the sealing nut and the through hole of the nut gland constitute a liquid discharge hole, further comprising an auxiliary seat, the auxiliary seat is movably arranged on the pump shell, and the auxiliary seat is used to move to the head of the liquid discharge bolt when the liquid discharge bolt and the sealing nut are separated;

[0009] An adaptive groove is arranged on the auxiliary seat, and the adaptive groove is used to cooperate with the head of the liquid discharge bolt when the auxiliary seat moves to the head of the liquid discharge bolt, so that the liquid discharge bolt and the sealing nut are separated through the auxiliary seat;

[0010] An adapter ring plate is arranged outside the auxiliary seat.

[0011] A plurality of operating rods are arranged on the lower end surface of the adapter ring plate, the operating rods are vertically arranged, and the operating rods are equidistantly arranged around the adapter ring plate, and the operating rods are used to assist in separating the drainage bolt from the sealing nut by the auxiliary seat, so as to facilitate hand operation of the auxiliary seat.

[0012] A connecting device is arranged between the auxiliary seat and the pump shell, the connecting device is used to limit the auxiliary seat on the pump shell when the drainage bolt is not separated from the sealing nut, so as to prevent the auxiliary seat from being lost, and the connecting device is used to first move to the head of the drainage bolt and then separate the drainage bolt from the sealing nut when the drainage bolt is separated from the sealing nut.

[0013] Further improvement is that the connecting device comprises an adapter block arranged on the pump shell, and the adapter block is horizontally arranged.

[0014] A connecting rope is arranged between the adapter block and the auxiliary seat, one end of the connecting rope is rotatably arranged on the lower end surface of the adapter block, and the other end of the connecting rope is rotatably arranged on the lower end surface of the auxiliary seat.

[0015] Further improvement is that a first bearing is arranged in the lower end surface of the adapter block, and one end of the connecting rope is provided with a first rotating shaft matched with the first bearing.

[0016] A second bearing is arranged in the lower end surface of the auxiliary seat, and the other end of the connecting rope is provided with a second rotating shaft matched with the second bearing.

[0017] Further improvement is that the connecting rope is an ultra-high-strength polyethylene fiber rope with wear resistance, corrosion resistance and cut resistance.

[0018] After the above technical scheme is adopted, the beneficial effects of the present application are that the drainage bolt and the sealing nut do not need to be separated by hand each time the drainage bolt and the sealing nut are operated, and the operation process is not easy to slip and / or painful; and the tool does not need to be carried each time the drainage bolt and the sealing nut are operated, which is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 is a structural schematic diagram of the present application;

[0021] Figure 2 is an enlarged view of A part of Figure 1

[0022] Explanation of reference signs: pump shell 1, sealing nut 2, liquid discharge bolt 3, nut gland 4, stepped hole 5, through hole 6, lower hole 7, threaded hole 8, liquid discharge hole 9, auxiliary seat 10, fitting groove 11, link ring plate 12, operating rod 13, link block 14, connecting rope 15, first bearing 16, first rotating shaft 17, second bearing 18, second rotating shaft 19. DETAILED DESCRIPTION

[0023] The utility model will be further explained in connection with the drawings and specific embodiments.

[0024] Referring to Figures 1 to 2 The technical scheme adopted in the specific embodiment is as follows:

[0025] A fluorine-lined centrifugal pump liquid discharge structure, comprising a pump shell 1, a sealing nut 2, a liquid discharge bolt 3 and a nut gland 4, the pump shell 1 is provided with a stepped hole 5, the sealing nut 2 is arranged in the stepped hole 5, the nut gland 4 is fixed with the pump shell 1 and presses the sealing nut 2 tightly, the nut gland 4 is provided with a through hole 6, the liquid discharge bolt 3 is screwed with the sealing nut 2 through the through hole 6 on the nut gland 4, the lower hole 7 of the stepped hole 5, the threaded hole 8 of the sealing nut 2 and the through hole 6 of the nut gland 4 constitute the liquid discharge hole 9, further comprising an auxiliary seat 10, the auxiliary seat 10 is movably arranged on the pump shell 1, and the auxiliary seat 10 is used to move to the head of the liquid discharge bolt 3 when the liquid discharge bolt 3 is separated from the sealing nut 2;

[0026] A fitting groove 11 is arranged on the upper surface of the auxiliary seat 10, and the fitting groove 11 is used to cooperate with the head of the liquid discharge bolt 3 when the auxiliary seat 10 moves to the head of the liquid discharge bolt 3, so as to separate the liquid discharge bolt 3 from the sealing nut 2 through the auxiliary seat 10;

[0027] A link ring plate 12 is fixedly arranged outside the auxiliary seat 10;

[0028] A plurality of operating rods 13 are fixedly arranged on the lower end surface of the link ring plate 12, the operating rods 13 are vertically arranged, the plurality of operating rods 13 are equidistantly arranged around the link ring plate 12, and the plurality of operating rods 13 are used to assist when the auxiliary seat 10 separates the liquid discharge bolt 3 from the sealing nut 2, so as to facilitate the hand operation of the auxiliary seat 10;

[0029] A connecting device is arranged between the auxiliary seat 10 and the pump shell 1, the connecting device is used to limit the auxiliary seat 10 on the pump shell 1 when the liquid discharge bolt 3 is not separated from the sealing nut 2, so as to prevent the auxiliary seat 10 from being lost, and the connecting device is used to move to the head of the liquid discharge bolt 3 first and then separate the liquid discharge bolt 3 from the sealing nut 2 when the liquid discharge bolt 3 is separated from the sealing nut 2.​

[0030] The connecting device comprises a connecting block 14 fixedly arranged on the pump shell 1, and the connecting block 14 is arranged above the stepped hole 5 and horizontally arranged;

[0031] A connecting rope 15 is arranged between the connecting block 14 and the auxiliary seat 10, one end of the connecting rope 15 is rotatably arranged at the lower end surface of the connecting block 14, and the other end of the connecting rope 15 is rotatably arranged at the lower end surface of the auxiliary seat 10; the connecting rope 15 is an ultra-high-strength polyethylene fiber rope with wear resistance, corrosion resistance and cutting resistance;

[0032] A first bearing 16 is fixedly arranged in the lower end surface of the connecting block 14, and a first rotating shaft 17 matched with the first bearing 16 is fixedly arranged at one end of the connecting rope 15;

[0033] A second bearing 18 is fixedly arranged in the lower end surface of the auxiliary seat 10, and a second rotating shaft 19 matched with the second bearing 18 is fixedly arranged at the other end of the connecting rope 15.

[0034] The auxiliary seat 10, the connecting ring plate 12, the operating rod 13, the connecting block 14, the connecting rope 15, the first bearing 16, the first rotating shaft 17, the second bearing 18 and the second rotating shaft 19 can be subjected to anti-corrosion treatment.

[0035] The working principle of the utility model is that the auxiliary seat 10 is used for being moved to the head of the drainage bolt 3 when the drainage bolt 3 is separated from the sealing nut 2; the adaptive groove 11 is used for being matched with the head of the drainage bolt 3 when the auxiliary seat 10 is moved to the head of the drainage bolt 3, so that the drainage bolt 3 is separated from the sealing nut 2 through the auxiliary seat 10; the operating rods 13 are used for playing an auxiliary role when the auxiliary seat 10 separates the drainage bolt 3 from the sealing nut 2, so as to facilitate the hand operation of the auxiliary seat 10; the connecting device is used for limiting the auxiliary seat 10 on the pump shell 1 when the drainage bolt 3 is not separated from the sealing nut 2, so as to prevent the auxiliary seat 10 from being lost, and the auxiliary seat 10 is moved to the head of the drainage bolt 3 first, and then the drainage bolt 3 is separated from the sealing nut 2 when the drainage bolt 3 is separated from the sealing nut 2.

[0036] The contents not described in detail in the utility model specification all belong to the prior art known by those skilled in the art. The structure of the product is protected by the utility model, and the model of each element is not the content protected by the utility model and is the prior art known by those skilled in the art. As long as the elements on the market can realize the functions of the utility model, they can be selected and applied.

[0037] The basic principle and main features of the utility model and its advantages are shown and described above, and the skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fluoropolymer-lined centrifugal pump drainage structure, comprising a pump housing, a sealing nut, a drainage bolt, and a nut cap, wherein the pump housing has a stepped hole, the sealing nut is disposed within the stepped hole, the nut cap is fixed to the pump housing and presses against the sealing nut, the nut cap has a through hole, the drainage bolt passes through the through hole on the nut cap and is threadedly connected to the sealing nut, the lower hole of the stepped hole, the threaded hole of the sealing nut, and the through hole of the nut cap constitute a drainage hole, characterized in that: It also includes an auxiliary seat, which is movably mounted on the pump housing. The auxiliary seat is used to move to the head of the drain bolt when the drain bolt and the sealing nut are separated. An adapter groove is provided on the auxiliary seat. The adapter groove is used to engage with the head of the drain bolt when the auxiliary seat moves to the head of the drain bolt, so as to separate the drain bolt from the sealing nut through the auxiliary seat. A connecting ring plate is disposed outside the auxiliary seat; Several operating levers are provided on the lower end face of the connecting ring plate. The operating levers are vertically arranged and are equidistantly arranged around the connecting ring plate. The operating levers are used to assist in separating the drain bolt and the sealing nut by the auxiliary seat, so as to facilitate manual operation of the auxiliary seat. A connecting device is disposed between the auxiliary seat and the pump housing. The connecting device is used to limit the auxiliary seat to the pump housing when the drain bolt and the sealing nut are not operated to separate, so as to prevent the auxiliary seat from being lost. When the drain bolt and the sealing nut are operated to separate, the connecting device first moves to the head of the drain bolt and then separates the drain bolt and the sealing nut.

2. The fluoropolymer-lined centrifugal pump discharge structure according to claim 1, characterized in that: The connecting device includes a connecting block, which is disposed on the pump casing and is horizontally positioned. A connecting rope is provided between the connecting block and the auxiliary seat. One end of the connecting rope is rotatably disposed on the lower end face of the connecting block, and the other end of the connecting rope is rotatably disposed on the lower end face of the auxiliary seat.

3. The fluoropolymer-lined centrifugal pump discharge structure according to claim 2, characterized in that: The lower end face of the connecting block is provided with a first bearing, and one end of the connecting rope is provided with a first rotating shaft that cooperates with the first bearing. The lower end face of the auxiliary seat is provided with a second bearing, and the other end of the connecting rope is provided with a second rotating shaft that cooperates with the second bearing.

4. The fluoropolymer-lined centrifugal pump discharge structure according to claim 2, characterized in that: The connecting rope is an ultra-high strength polyethylene fiber rope with wear resistance, corrosion resistance, and cut resistance.

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