Centrifugal pump flow dividing mechanism

Abstract

The utility model relates to the technical field of centrifugal pump shunting, and discloses a centrifugal pump shunting mechanism which comprises a supporting seat, a pump main body and a shunting cylinder, the upper end of the pump main body is fixedly provided with the shunting cylinder, an annular support is fixedly arranged in the shunting cylinder, an annular strip is movably arranged in the annular support, and the upper end of the annular strip is fixedly provided with an annular groove. A rotating rod is fixedly arranged at the top of the sealing ball body, an inner groove is formed in the poke rod, a pull rod is movably arranged on the inner groove, and a spring is connected to the pull rod in a sleeved mode. When the rotating rod drives the sealing ball body to rotate to adjust flow dividing, meanwhile, the annular strip conducts rotating friction along the inner wall of the annular support, and graphite blocks can evenly seep out; a layer of thin lubricating film is formed on the contact face of the annular strip and the annular support, the position of the sealing ball can be fixed only by pulling the pull rod upwards, compressing the spring and loosening the pull rod so as to push the plug pin column to be connected with the corresponding pin hole in an inserted mode, and convenience is provided for operation of workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal pump shunt technical field especially relates to a centrifugal pump shunt mechanism. BACKGROUND

[0002] Centrifugal pump is the pump that the centrifugal force produced when the impeller rotates is used to transport liquid, the water pump must make the pump shell and the water suction pipe be full of water before starting, then start the motor, make the pump shaft drive the impeller and water high-speed rotation, water centrifugal motion is thrown to the outer edge of the impeller, the flow channel of the volute pump shell is flowed into the water pump's water pressure pipe, the basic structure of centrifugal pump is composed of six parts respectively is impeller, pump body, pump shaft, bearing, sealing ring, packing gland.

[0003] The prior art centrifugal pump shunt mechanism (publication number: CN221762208U) adjusts the sealing ball in the inner cavity of the shunt main pipe through the adjusting assembly, so that the distance between the shunt hole and the shunt branch pipe is adjusted, and the number of switches of the shunt branch pipe is selected according to the actual use requirement, but the sealing ball needs to be frequently rotated to adapt to different shunt requirements, which causes continuous and high-intensity friction between the related parts of the sealing ball, thereby accelerating the wear of the surface of each part, affecting the sealing performance and adjusting effect of the whole, and increasing the maintenance cost and workload, and only the rotating angle of the limiting column is guided through the arc-shaped hole to observe the rotating angle of the adjusting handle, so that the adjusting state of the sealing ball is difficult for the operator to accurately obtain, and the convenience of operation is affected. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a centrifugal pump shunt mechanism.

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

[0006] A centrifugal pump shunt mechanism, including support seat, pump main body and shunt cylinder, the upper end of pump main body is fixedly installed with shunt cylinder, the inside of shunt cylinder is fixedly installed with annular support, the inside of annular support is movably equipped with annular strip, the upper end of annular strip is fixedly equipped with sealing ball, the inside of annular support is equipped with oil storage groove, the upper end of oil storage groove is embedded with porous ceramic, the inner wall between porous ceramic and oil storage groove is fixedly equipped with graphite block, the top of sealing ball is fixedly equipped with rotating rod, the top of rotating rod is fixedly equipped with poking rod, one end of poking rod is fixedly installed with indicating strip, the inner groove of poking rod is equipped with pull rod, the pull rod is sleeved with spring, the bottom of pull rod is fixedly equipped with bolt column, the top of shunt cylinder is fixedly installed with angle ruler plate, the angle ruler plate is equipped with pin hole, the bolt column is embeddedly connected with pin hole.

[0007] As a further scheme of the utility model, the center position of the top of the shunt cylinder is fixedly provided with a sealing sleeve, the rotating rod penetrates and connects the sealing sleeve, and the shunt cylinder is fixedly installed with a transparent observation window.

[0008] As a further scheme of the utility model, the rotating rod penetrates and connects the inner groove, the pin holes are distributed at equal intervals on the angle ruler plate, and the transparent observation window is distributed at equal intervals on the shunt cylinder.

[0009] As a further scheme of the utility model, the two ends of the spring are fixedly connected with the inner wall of the inner groove and the upper end of the bolt column respectively, and the sealing ball body is provided with a shunt hole.

[0010] As a further scheme of the utility model, a plurality of groups of shunt holes are arranged on the sealing ball body, the shunt cylinder is fixedly installed with a shunt branch pipe, and the annular strip is provided with a sealing ring.

[0011] As a further scheme of the utility model, the sealing ring is fixedly connected with the upper end of the annular support, the pump body is fixedly installed on the support seat, and the rotating rod penetrates and connects the top of the shunt cylinder.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In use, when the shunt is adjusted by rotating the sealing ball body through the rotating rod, the annular strip is simultaneously rotated and rubbed along the inner wall of the annular support, under the double action of heat and pressure, the graphite block structure in the oil storage groove is changed, the graphite block can uniformly seep out through the use of the porous ceramic, a thin lubricating film is formed on the contact surface of the annular strip and the annular support, the friction coefficient between the two is reduced, the maintenance cost of the related parts of the sealing ball body is reduced, the angle ruler plate, the indicating strip and the transparent observation window are arranged, the staff can more intuitively and clearly understand the adjustment position of the sealing ball body, the rotating rod, the pin hole, the spring and the bolt column are arranged, the staff only needs to pull the rotating rod upward, the spring is compressed, the rotating rod is released, the spring is rebounded, the bolt column is inserted into the corresponding pin hole, and the position of the sealing ball body is fixed, so that the staff operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the centrifugal pump shunt mechanism of the utility model;

[0015] Figure 2 It is a sectional structure schematic view of the centrifugal pump shunt mechanism of the utility model;

[0016] Figure 3This is an enlarged structural diagram of point A of a centrifugal pump diversion mechanism proposed in this utility model;

[0017] Figure 4 This is an enlarged structural diagram of point B of a centrifugal pump diversion mechanism proposed in this utility model;

[0018] In the diagram: 1. Support base; 101. Diversion branch pipe; 102. Angle ruler plate; 103. Transparent observation window; 104. Sealing sphere; 105. Annular support; 106. Diversion hole; 2. Pump body; 201. Sealing ring; 202. Annular strip; 203. Oil reservoir; 3. Diversion cylinder; 301. Porous ceramic; 302. Graphite block; 303. Indicator strip; 4. Spring; 5. Pull rod; 6. Pin hole; 7. Insert pin; 8. Actuating rod; 801. Sealing sleeve; 802. Rotating rod; 803. Inner groove. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-4A centrifugal pump diversion mechanism includes a support base 1, a pump body 2, and a diversion cylinder 3. The diversion cylinder 3 is fixedly installed on the upper end of the pump body 2. An annular support 105 is fixedly installed inside the diversion cylinder 3. An annular strip 202 is movably arranged inside the annular support 105. A sealing ball 104 is fixedly installed at the upper end of the annular strip 202. An oil storage tank 203 is formed inside the annular support 105. A porous ceramic 301 is embedded at the upper end of the oil storage tank 203. The porous ceramic 301 is fixedly bonded to the inner wall of the oil storage tank 203. A graphite block 302 is fixedly provided. A rotating rod 802 is fixedly provided on the top of the sealing sphere 104. A toggle rod 8 is fixedly provided at the top of the rotating rod 802. An indicator strip 303 is fixedly installed at one end of the toggle rod 8. An inner groove 803 is opened on the toggle rod 8. A pull rod 5 is movably provided on the inner groove 803. A spring 4 is sleeved on the pull rod 5. A pin post 7 is fixedly provided at the bottom end of the pull rod 5. An angle ruler plate 102 is fixedly installed at the top of the diverter 3. A pin hole 6 is opened on the angle ruler plate 102. The pin post 7 is inserted into the connecting pin hole 6.

[0023] In use, by rotating the lever 8, the rotating rod 802 drives the sealing ball 104 to rotate. At the same time, the annular strip 202 rotates and rubs along the inner wall of the annular support 105. Under the dual action of heat and pressure, the graphite block 302 in the oil reservoir 203 begins to undergo physical changes, the molecular motion intensifies, and the structure changes. Under the action of the porous ceramic 301, the graphite block 302 can be evenly seeped out, forming a thin lubricating film on the contact surface between the annular strip 202 and the annular support 105, thereby reducing the coefficient of friction between the two. With the cooperation of the angle ruler 102, the indicator strip 303, and the transparent observation window 103, the staff can more intuitively and clearly understand the adjustment position of the sealing ball 104. Then, simply pull the lever 5 upward to compress the spring 4, and then release the lever 5 to cause the spring 4 to rebound and push the pin 7 to engage with the corresponding pin hole 6, thus completing the fixation of the sealing ball 104.

[0024] In this embodiment, a sealing sleeve 801 is fixedly provided at the center of the top of the diversion cylinder 3, and a rotating rod 802 is connected through the sealing sleeve 801. A transparent observation window 103 is fixedly installed on the diversion cylinder 3.

[0025] In use, the sealing sleeve 801 is used to enhance the sealing effect at the connection between the rotating rod 802 and the diverter 3. Utilizing the capillary action of the porous ceramic 301, when the graphite block is affected by heat and force, it slowly and evenly seeps into the ceramic surface, providing continuous lubrication.

[0026] In this embodiment, the pull rod 5 passes through the inner groove 803, the pin holes 6 are evenly distributed on the angle ruler plate 102, and the transparent observation window 103 is evenly distributed on the diverter 3.

[0027] During use, staff can more intuitively and clearly view the inside of the diverter 3 through multiple transparent observation windows 103.

[0028] In this embodiment, the two ends of the spring 4 are fixedly connected to the inner wall of the inner groove 803 and the upper end of the pin 7, respectively, and the sealing ball 104 is provided with a diversion hole 106.

[0029] In use, the angle ruler plate 102 has multiple pin holes 6 corresponding to the pin post 7, so that it can be quickly adjusted and positioned.

[0030] In this embodiment, multiple sets of diversion holes 106 are provided on the sealing sphere 104, a diversion branch pipe 101 is fixedly installed on the diversion cylinder 3, and a sealing ring 201 is sleeved on the annular strip 202.

[0031] In use, the internal sealing ball 104 is rotated by the rotating rod 802, so that the flow splitting state between the flow splitting hole 106 and the flow splitting branch pipe 101 is adjusted, thereby facilitating use according to the flow splitting needs of the pump body 2.

[0032] In this embodiment, the sealing ring 201 is fixedly connected to the upper end of the annular support 105, the pump body 2 is fixedly installed on the support base 1, and the rotating rod 802 is connected through the top of the diverter cylinder 3.

[0033] In use, a sealing ring 201 is provided at the connection between the upper end of the annular bar 202 and the annular support 105 to increase the sealing between the two and to keep the sealing ball 104 stable when it rotates.

[0034] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When the pump body 2 needs to be diverted, the operator rotates the lever 8, causing the rotating rod 802 to drive the internal sealing ball 104 to rotate. At the same time, the annular strip 202 rotates and rubs against the inner wall of the annular support 105, causing the graphite block in the porous ceramic 301 to be affected by heat and force, resulting in structural changes. This allows the graphite block to be slowly released to provide lubrication, ensuring the stability of the sealing ball 104 during rotation. After adjusting the lever 8 to a suitable position, the pull rod 5 is pulled upwards to move the pin 7 upwards and compress the spring 4. Then, the pull rod 5 is released, causing the spring 4 to rebound and drive the pin 7 to engage with the corresponding pin hole 6, thus fixing the position of the rotating rod 802 and thereby fixing the position of the sealing ball 104. Furthermore, with the cooperation of the angle ruler 102 and the indicator strip 303, the adjustment position of the sealing ball 104 can be understood more intuitively and clearly, making it easier for the operator to operate and improving the efficiency of diversion adjustment.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A centrifugal pump diversion mechanism, comprising a support base (1), a pump body (2), and a diversion cylinder (3), characterized in that: The flow divider (3) is fixedly installed on the upper end of the pump body (2). An annular support (105) is fixedly installed inside the flow divider (3). An annular strip (202) is movably arranged inside the annular support (105). A sealing ball (104) is fixedly installed at the upper end of the annular strip (202). An oil storage tank (203) is opened inside the annular support (105). A porous ceramic (301) is embedded at the upper end of the oil storage tank (203). A graphite block (302) is fixed between the porous ceramic (301) and the inner wall of the oil storage tank (203). The sealing ball (104) A rotating rod (802) is fixedly provided at the top of the device. A toggle rod (8) is fixedly provided at the top of the rotating rod (802). An indicator strip (303) is fixedly installed at one end of the toggle rod (8). An inner groove (803) is provided on the toggle rod (8). A pull rod (5) is movably provided on the inner groove (803). A spring (4) is sleeved on the pull rod (5). A pin (7) is fixedly provided at the bottom end of the pull rod (5). An angle ruler plate (102) is fixedly installed at the top of the diverter (3). A pin hole (6) is provided on the angle ruler plate (102). The pin (7) is embedded in and connected to the pin hole (6).

2. The centrifugal pump diversion mechanism according to claim 1, characterized in that, A sealing sleeve (801) is fixedly provided at the center of the top of the diverter (3), and the rotating rod (802) passes through and connects to the sealing sleeve (801). A transparent observation window (103) is fixedly installed on the diverter (3).

3. A centrifugal pump diversion mechanism according to claim 2, characterized in that, The pull rod (5) is connected through the inner groove (803), the pin holes (6) are evenly distributed on the angle ruler plate (102), and the transparent observation window (103) is evenly distributed on the diverter cylinder (3).

4. A centrifugal pump diversion mechanism according to claim 1, characterized in that, The two ends of the spring (4) are respectively fixedly connected to the inner wall of the inner groove (803) and the upper end of the pin (7), and the sealing ball (104) is provided with a diversion hole (106).

5. A centrifugal pump diversion mechanism according to claim 4, characterized in that, The diversion holes (106) are provided in multiple sets on the sealing sphere (104), the diversion branch pipe (101) is fixedly installed on the diversion cylinder (3), and the sealing ring (201) is sleeved on the annular strip (202).

6. A centrifugal pump diversion mechanism according to claim 5, characterized in that, The sealing ring (201) is fixedly connected to the upper end of the annular support (105), the pump body (2) is fixedly installed on the support base (1), and the rotating rod (802) is connected through the top of the diverter cylinder (3).

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