Multi-stage pump with leakage-proof function

Abstract

The utility model relates to the field of multi-stage pumps, in particular to a multi-stage pump with a leakage-proof function, which comprises a multi-stage pump body, the multi-stage pump body comprises a water inlet section pipe body and a water outlet section pipe body which are arranged on one side of the pump body, and the water inlet section and the water outlet section are both connected with transmission pipes. The lower fixing mechanism and the upper fixing mechanism are arranged on the pipe walls of the water inlet section and the water outlet section, after the two pipe bodies are connected with the conveying pipe, and sealing measures are taken at the connecting position, the upper fixing mechanism rotates to enable an upper fixing head to be pressed on the surface of a conveying pipe connector, and pressing of a lower fixing disc is matched, so that the conveying pipe connector is fixed. Therefore, the upper fixing mechanism and the lower fixing mechanism are matched to press the sealing gasket and the leakage-proof sealing sleeve at the connecting position, the leakage-proof effect of the connecting position is better after the connecting position is pressed, and the leakage-proof function of the pipe body of the water inlet section and the pipe body of the water outlet section of the multi-stage pump body is achieved. A traditional sealing leakage-proof lantern ring needing to be additionally installed can be replaced, and water is prevented from leaking out of the connecting position of the pipe bodies on the two sides.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage pumps, in particular to a multi-stage pump with a leakage-proof function. Background Art

[0002] The multistage pump is a centrifugal pump that combines the inlet and outlet sections and the middle section through a tie rod. Its output water pressure can be very high, and it also relies on the rotation of the impeller to obtain centrifugal force, so that the material. When the gas density reaches the working range of the mechanical vacuum pump, it is extracted, and a high vacuum is gradually obtained. The multistage pump relies on the change of the pump chamber volume to achieve suction, compression and exhaust, so it is a centrifugal pump with variable volume.

[0003] When the pipe bodies of the water inlet section and the water outlet section of some multi-stage pumps are connected to the transmission pipe, some transmission pipes are connected in a manner of installing a sealing ring at the connection. However, if the sealing ring is not installed firmly, it will cause water leakage at the connection, so that a large amount of water will leak from the connection when the multi-stage pump is working, thereby causing a waste of water resources, and a large amount of water stains will remain around the multi-stage pump, thus creating a safety hazard. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a multi-stage pump with a leak-proof function.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multistage pump with a leak-proof function comprises a multistage pump body, wherein the multistage pump body comprises a water inlet section pipe body and a water outlet section pipe body arranged on one side of the pump body, the water inlet section and the water outlet section are both connected with a transmission pipe, sliding seats are symmetrically arranged on the side walls of the pipe bodies of the water inlet section and the water outlet section at the connection with the transmission pipe, a lower fixing mechanism is slidably arranged on the sliding seat, and an upper fixing mechanism is rotatably arranged on the lower fixing mechanism;

[0007] The upper fixing mechanism comprises a mounting frame, the bottom of which is rotatably arranged on the lower fixing mechanism, and an upper fixing head is arranged on the upper part of the mounting frame body.

[0008] In addition, a preferred structure is that the lower fixing mechanism includes a support plate, a lower fixing plate is horizontally fixed to the upper end of the support plate, a rotating rod is fixedly connected to one side of the support plate, and a slider is fixedly connected to the other side of the support plate away from the rotating rod.

[0009] In addition, a preferred structure is that the slider is arranged on the sliding seat to slide linearly, a mounting frame is rotatably mounted on the rotating rod, the lower fixed plate is semicircular, and a rubber pad is attached to the upper surface of the lower fixed plate.

[0010] In addition, a preferred structure is that a rotating head is provided at the bottom of the mounting frame body, the rotating head is installed on the rotating rod for rotation, a movable hole is opened through the upper end surface of the mounting frame body, and an upper fixed head is provided at the movable hole.

[0011] In addition, a preferred structure is that the upper fixing head includes an upper fixing plate, a threaded rod is vertically fixedly connected to the middle of the upper surface of the upper fixing plate, and two nuts are screwed onto the threaded rod.

[0012] In addition, a preferred structure is that the threaded rod is arranged in the movable hole, and the two nuts on the threaded rod are symmetrically arranged on both sides of the upper end frame of the mounting frame, the upper fixing plate is semicircular, and a rubber pad is attached to the upper end surface of the upper fixing plate.

[0013] The beneficial effects of the utility model are as follows: by arranging the lower fixing mechanism and the upper fixing mechanism on the pipe wall of the water inlet section and the water outlet section, after the two pipe bodies are connected to the transmission pipe and the sealing measures are taken at the connection, the upper fixing mechanism rotates and then presses the upper fixing head onto the surface of the transmission pipe connection head, and cooperates with the pressing of the lower fixing plate, so that the upper fixing mechanism and the lower fixing mechanism cooperate to press the sealing gasket and the leak-proof sealing sleeve at the connection, and after pressing the connection, the connection heads on both sides can better press the sealing gasket or the leak-proof sealing sleeve, so that the leak-proof effect of the connection is better, thereby realizing the self-contained leak-proof function of the water inlet section and the water outlet section of the multi-stage pump body, which can replace the traditional need to additionally install a sealing and leak-proof ring to prevent water from leaking from the connection of the pipe bodies on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the multi-stage pump after the transmission pipe is installed;

[0015] Figure 2 It is a structural schematic diagram of the connection between the outlet pipe body and the transmission pipe;

[0016] Figure 3 It is a schematic diagram of the structure after the water inlet section and the transmission pipe are separated;

[0017] Figure 4 It is a schematic diagram of the structure after the upper fixing mechanism and the lower fixing mechanism are separated;

[0018] Figure 5 is a structural schematic diagram of the lower fixing mechanism;

[0019] Figure 6 It is a schematic diagram of the structure of the slider in the sliding seat;

[0020] Figure 7 This is a schematic diagram of the structure after the upper fixing mechanism is disassembled.

[0021] In the figure: 1 multi-stage pump body, 2 water inlet section, 3 water outlet section, 4 transmission pipe, 5 sliding seat, 6 upper fixing mechanism, 61 upper fixing head, 611 upper fixing plate, 612 threaded rod, 613 nut, 62 mounting frame, 621 movable hole, 622 rotating head, 7 lower fixing mechanism, 71 lower fixing plate, 72 slider, 73 rotating rod, 74 support plate, 8 rubber pad, 9 leak-proof sealing sleeve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-7 A multistage pump with a leak-proof function comprises a multistage pump body 1, the multistage pump body 1 comprises a water inlet section 2 pipe body and a water outlet section 3 pipe body arranged on one side of the pump body, the water inlet section 2 and the water outlet section 3 are both connected with a transmission pipe 4, and sliding seats 5 are symmetrically arranged on the side walls of the pipe bodies of the water inlet section 2 and the water outlet section 3 at the connection with the transmission pipe 4, and lower fixing mechanisms 7 are slidably arranged on the sliding seats 5, and upper fixing mechanisms 6 are rotatably arranged on the lower fixing mechanisms 7;

[0024] The upper fixing mechanism 6 comprises a mounting frame 62 , the bottom of which is rotatably arranged on the lower fixing mechanism 7 , and an upper fixing head 61 is arranged on the upper part of the mounting frame 62 .

[0025] In addition, the lower fixing mechanism 7 includes a support plate 74, a lower fixed plate 71 is horizontally fixed on the upper end of the support plate 74, a rotating rod 73 is fixedly connected to one side of the support plate 74, and a slider 72 is fixedly connected to the other side of the support plate 74 away from the rotating rod 73. The slider 72 is arranged on the sliding seat 5 to slide linearly, and the mounting frame 62 is rotatably mounted on the rotating rod 73. The lower fixed plate 71 is semicircular, and a rubber pad 8 is attached to the upper surface of the lower fixed plate 71. The slider 72 slides up and down on the sliding seat 5, so that the distance between the lower fixed plate 71 and the upper fixed plate 611 can be adjusted.

[0026] In addition, a rotating head 622 is provided at the bottom of the mounting frame 62, and the rotating head 622 is installed on the rotating rod 73 for rotation. A movable hole 621 is opened through the upper end surface of the mounting frame 62, and an upper fixed head 61 is provided at the movable hole 621. The movable hole 621 facilitates the threaded rod 612 to move freely on the mounting frame 62.

[0027] In addition, the upper fixing head 61 includes an upper fixing plate 611, and a threaded rod 612 is vertically fixedly connected in the middle of the upper surface of the upper fixing plate 611. Two nuts 613 are screwed on the threaded rod 612. The nuts 613 are rotated on the threaded rod 612 and can be tightened on the upper and lower side surfaces of the upper end frame of the mounting frame 62, thereby fixing the upper fixing head 61 as a whole.

[0028] Moreover, the threaded rod 612 is arranged in the movable hole 621, and the two nuts 613 on the threaded rod 612 are symmetrically arranged on both sides of the upper end frame of the mounting frame 62. The upper fixed plate 611 is semicircular, and a rubber pad 8 is attached to the upper end surface of the upper fixed plate 611. The rubber pad 8 can play a certain buffering role to prevent the upper fixed plate 611 from breaking due to excessive force when pressed.

[0029] Moreover, the connection between the pipe body of the water inlet section 2 and the water outlet section 3 and the transmission pipe 4 is also sleeved with a leak-proof sealing sleeve 9 made of soft material, which plays a leak-proof sealing effect under the squeezing of the upper fixing mechanism 6 and the lower fixing mechanism 7.

[0030] In this embodiment, after the transmission pipe 4 is connected to the pipe body of the water inlet section 2 and the water outlet section 3, and some leak-proof sealing measures are taken, such as installing a sealing gasket or a leak-proof sealing sleeve 9 at the connection, the upper fixing mechanism 6 on both sides is rotated upward, and the sealing gasket and the leak-proof sealing sleeve 9 at the connection are both prior arts, which are basic knowledge familiar to those skilled in the art when installing the transmission pipe 4, so there is no need to elaborate on its specific structure and installation method.

[0031] Then rotate the upper fixing mechanism 6 on both sides upward so that the rotating head 622 rotates on the rotating rod 73. Before that, loosen the nut 613 so that the nuts 613 on both sides of the upper end frame of the mounting frame 62 can be separated, so that they can be released from the state originally locked on both sides of the upper end frame of the mounting frame 62, so that the threaded rod 612 can move freely in a straight line in the movable hole 621, and then adjust the threaded rod 612 so that the upper fixing plate 611 can be rotated to the upper end surface of the connecting head of the transmission tube 4.

[0032] Then, at this time, the lower fixing mechanism 7 below is pulled to make the slider 72 slide upward on the sliding seat 5 so that the lower fixing plate 71 can fit the bottom end surface of the pipe connecting head of the water inlet section 2 or the water outlet section 3, and then the nut 613 at the upper end of the mounting bracket 62 can be locked so that the nut 613 at the upper end can continue to press the upper end surface of the mounting bracket 62, so that the distance between the upper fixing plate 611 and the lower fixing plate 71 is reduced, thereby connecting the pipes on both sides more tightly. After the upper fixing plate 611 and the lower fixing plate 71 are tightened, the nut 613 below the upper end frame of the mounting bracket 62 can be screwed upward so that it is screwed tightly on the bottom end surface of the upper end frame of the mounting bracket 62 The surface is formed by the threaded rod 612, thereby fixing the upper fixing mechanism 6 and the lower fixing mechanism 7, so that the upper fixing mechanism 6 cooperates with the lower fixing mechanism 7 to compress the sealing gasket and the leak-proof sealing sleeve 9 at the connection. The leak-proof sealing sleeve 9 is made of a silicone material. Due to its softness, the lower fixing mechanism 7 and the upper fixing mechanism 6 on the upper side after it is sleeved on the connection can squeeze and wrap the connection, thereby effectively preventing water from leaking out. After the lower fixing mechanism 7 and the upper fixing mechanism 6 on both sides are installed and fixed, the semicircular upper fixing plate 611 and the lower fixing plate 71 on both sides can effectively compress the surface of the tube body connectors on both sides, thereby realizing the leak-proof function and preventing water from leaking out from the tube body connections on both sides.

[0033] In the utility model, by arranging the lower fixing mechanism 7 and the upper fixing mechanism 6 on the pipe wall of the water inlet section 2 and the water outlet section 3, after the two pipe bodies are connected with the transmission pipe 4 and the sealing measures are taken at the connection, the upper fixing mechanism 6 rotates and then presses the upper fixing head 61 on the surface of the connection head of the transmission pipe 4, and cooperates with the pressing of the lower fixing plate 71, so that the upper fixing mechanism 6 and the lower fixing mechanism 7 cooperate to press the sealing gasket and the leak-proof sealing sleeve 9 at the connection, and after the connection is pressed, the leak-proof effect of the connection can be better, thereby realizing the self-leakage-proof function of the water inlet section 2 and the water outlet section 3 of the multi-stage pump body 1, which can replace the traditional need to install additional sealing and leak-proof rings to prevent water from leaking from the connection between the pipe bodies on both sides.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multistage pump with a leak-proof function, comprising a multistage pump body (1), characterized in that: The multi-stage pump body (1) comprises a water inlet section (2) pipe body and a water outlet section (3) pipe body arranged on one side of the pump body, the water inlet section (2) and the water outlet section (3) are both connected to a transmission pipe (4), sliding seats (5) are symmetrically arranged on the side walls of the pipe bodies of the water inlet section (2) and the water outlet section (3) at the connection with the transmission pipe (4), a lower fixing mechanism (7) is slidably arranged on the sliding seat (5), and an upper fixing mechanism (6) is rotatably arranged on the lower fixing mechanism (7); The upper fixing mechanism (6) comprises a mounting frame (62), the bottom of the mounting frame (62) is rotatably arranged on the lower fixing mechanism (7), and an upper fixing head (61) is arranged on the upper part of the mounting frame (62).

2. A multi-stage pump with a leak-proof function according to claim 1, characterized in that: The lower fixing mechanism (7) comprises a support plate (74), a lower fixing plate (71) being horizontally fixed to the upper end of the support plate (74), a rotating rod (73) being fixedly connected to one side of the support plate (74), and a sliding block (72) being fixedly connected to the other side of the support plate (74) away from the rotating rod (73).

3. A multi-stage pump with a leak-proof function according to claim 2, characterized in that: The slide block (72) is arranged on the slide seat (5) to slide linearly, a mounting frame (62) is rotatably mounted on the rotating rod (73), the lower fixed plate (71) is semicircular, and a rubber pad (8) is attached to the upper surface of the lower fixed plate (71).

4. A multi-stage pump with a leak-proof function according to claim 3, characterized in that: The bottom of the mounting frame (62) is provided with a rotating head (622), which is mounted on a rotating rod (73) for rotation. A movable hole (621) is provided through the upper end surface of the mounting frame (62), and an upper fixed head (61) is provided at the movable hole (621).

5. A multi-stage pump with a leak-proof function according to claim 4, characterized in that: The upper fixing head (61) comprises an upper fixing plate (611), a threaded rod (612) is vertically fixedly connected to the middle of the upper surface of the upper fixing plate (611), and two nuts (613) are screwed onto the threaded rod (612).

6. A multi-stage pump with a leak-proof function according to claim 5, characterized in that: The threaded rod (612) is arranged in the movable hole (621), the diameter of the movable hole (621) is larger than the diameter of the threaded rod (612), and the two nuts (613) on the threaded rod (612) are symmetrically arranged on both sides of the upper end frame of the mounting frame (62), the upper fixing plate (611) is semicircular, and a rubber pad (8) is attached to the upper end surface of the upper fixing plate (611).

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