Self-sealing suspension cleaner for precise liquid weighing bin

Abstract

The utility model relates to the technical field of cleaning equipment, and particularly discloses a self-sealing suspension cleaner for a liquid precision weighing bin, which is mounted at the top of the liquid precision weighing bin and comprises a fixed pipeline, a corrugated pipe, a cleaning ball, a joint, a fixed flange and a floating flange, the fixed pipeline is located above the liquid precise weighing bin, the end of the fixed pipeline is connected with one end of the corrugated pipe through the connector, and the washing ball is connected with the other end of the corrugated pipe. The fixed flange is installed at an opening in the top of the liquid precise weighing bin, the floating flange is arranged at the joint of the washing ball and the corrugated pipe, and the washing ball vertically extends into the liquid precise weighing bin through the fixed flange. By arranging the fixed flange and the floating flange, when cleaning is carried out, water pressure enables the cleaning ball to move downwards, and then the floating flange is tightly attached to the upper portion of the fixed flange through the extension effect of the corrugated pipe, so that effective sealing is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a self-sealing suspension cleaning device for a liquid precision weighing bin. Background Art

[0002] During precision liquid weighing, external piping significantly impacts the accuracy of weighing results. Traditional hose cleaning methods often cause external forces and weighing chamber oscillation, leading to offset contact points on the load cell and affecting metering stability. Therefore, a new cleaning device is needed that can achieve this without contacting the weighing chamber and causing additional interference during weighing. It also automatically seals during the cleaning process, ensuring a clean, leak-proof seal and ensuring accurate weighing. Utility Model Content

[0003] In order to overcome the problems existing in the prior art, the purpose of the utility model is to provide a liquid precision weighing bin self-sealing suspension washer.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a self-sealing suspended cleaner for a liquid precision weighing bin, which is installed on the top of the liquid precision weighing bin, including: a fixed pipe, a bellows, a washing ball, a joint, a fixed flange and a floating flange; the fixed pipe is located above the liquid precision weighing bin, and the end of the fixed pipe is connected to one end of the bellows through the joint, and the washing ball is connected to the other end of the bellows; the fixed flange is installed at the top opening of the liquid precision weighing bin, and the floating flange is arranged at the connection between the washing ball and the bellows, and the washing ball extends vertically into the liquid precision weighing bin through the fixed flange; when cleaning starts, the washing ball will move downward due to the action of water pressure, thereby pulling the bellows to extend downward and driving the floating flange to be close to the top of the fixed flange; when cleaning is finished, the bellows elastically recovers and drives the floating flange to move away from the surface of the fixed flange.

[0005] Main Working Principle: The operating principle of this self-sealing floating washer for liquid precision weighing tanks primarily involves the effects of water pressure, the elastic deformation of the bellows, and the coordination between the fixed and floating flanges. The following is a detailed description of its working principle. During installation, the washer is mounted on top of the liquid precision weighing tank. The fixed pipe, located above the tank, connects its end to one end of the bellows via a joint. The washing ball is connected to the other end of the bellows and extends vertically into the tank via a fixed flange. The floating flange is located at the junction of the washing ball and the bellows, initially maintaining a certain distance from the fixed flange. When cleaning begins, water flows from the fixed pipe, enters the bellows through the joint, and ultimately reaches the washing ball. The water pressure exerts downward pressure on the washing ball, causing it to begin moving downward. As the washing ball moves downward, the bellows experiences a downward pull at the connection between the washing ball and the bellows, causing it to begin extending downward. This extension of the bellows causes the floating flange to move downward, eventually coming into contact with the fixed flange, forming a temporary seal. During the cleaning process, cleaning water is evenly sprayed onto the interior of the liquid precision weighing bin by the cleaning balls. The tight fit between the floating flange and the fixed flange ensures effective isolation between the interior of the weighing bin and the external environment, preventing the spillage of liquid or impurities. Once cleaning is complete, the water source is shut off, and the water pressure within the bellows gradually decreases. Due to the elastic properties of the material, the bellows gradually returns to its original shape, contracting upward. This contraction of the bellows drives the floating flange upward, ultimately moving it away from the surface of the fixed flange. At this point, the cleaner returns to its initial state, ready for the next cleaning operation.

[0006] Preferably, a first clamping groove is provided at the upper end of the through hole of the floating flange, and a second clamping groove is provided at the lower end of the through hole of the floating flange;

[0007] The bellows is connected to the first slot, and the washing ball is connected to the second slot.

[0008] Preferably, a limiting cover is provided on the periphery of one side of the floating flange facing the fixed flange, the diameter of the limiting cover directly corresponds to that of the fixed flange, and the limiting cover is sleeved on the periphery of the fixed flange.

[0009] As a preference, it further comprises a sealing ring;

[0010] A first sealing groove is provided on a side of the floating flange facing the fixed flange, and a second sealing groove is provided on a side of the fixed flange facing the floating flange. The first sealing groove and the second sealing groove are arranged opposite to each other, and the sealing ring is arranged between the first sealing groove and the second sealing groove, and the sealing ring separates the first sealing groove and the second sealing groove;

[0011] During cleaning, the first sealing groove, the second sealing groove and the sealing ring are squeezed; when cleaning is finished, the sealing ring separates and restores the first sealing groove.

[0012] Preferably, the width of the sealing ring at a side in contact with the first sealing groove is smaller than the width of the sealing ring at a side in contact with the second sealing groove.

[0013] Preferably, the sealing ring is made of rubber.

[0014] Preferably, a serrated surface is provided on a side of the sealing ring facing the first sealing groove. When cleaning, the first sealing groove squeezes the serrated surface until the serrated surface is folded and compressed to form a labyrinth seal.

[0015] Preferably, a water baffle is provided on the inner side of the first sealing groove to block the water flow.

[0016] Preferably, the fixed pipe is fixed above the liquid precision weighing bin by hoisting.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This utility model utilizes a fixed flange and a floating flange. During cleaning, water pressure causes the wash balls to move downward. The bellows then extend, forcing the floating flange to rest against the fixed flange, creating an effective seal. This self-sealing design prevents liquid from leaking from the top of the weighing bin during cleaning, ensuring operational safety and a clean environment. Furthermore, the bellows expand and contract according to changes in water pressure, adapting to the movement of the wash balls during the cleaning process. This flexibility not only ensures smooth cleaning but also reduces potential damage from friction or collisions with mechanical components.

[0019] In summary, the liquid precision weighing bin self-sealing suspension cleaner achieves automatic sealing during the cleaning process through its unique design and function, eliminates the interference of the cleaner on weighing, and ensures cleaning sealing and weighing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the liquid precision weighing tank self-sealing suspension cleaner installed in the liquid precision weighing tank;

[0022] Figure 2 This is the overall diagram of the self-sealing suspension washer for the liquid precision weighing tank Figure 1 ;

[0023] Figure 3 This is the overall diagram of the self-sealing suspension washer for the liquid precision weighing tank Figure 2 ;

[0024] Figure 4 This is a partial schematic diagram of the self-sealing suspension washer for the liquid precision weighing bin;

[0025] 1. Liquid precision weighing chamber; 2. Fixed pipe; 3. Bellows; 4. Ball washer; 5. Joint; 6. Fixed flange; 7. Floating flange; 8a. First slot; 8b. Second slot; 9. Limit cover; 10. Sealing ring; 11. First sealing groove; 12. Second sealing groove; 13. Water retaining plate; 14. Weighing sensor. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] Example 1

[0029] This embodiment discloses a liquid precision weighing bin self-sealing suspension cleaning device. Figures 1-4 The self-sealing suspension washer for a precision liquid weighing tank is shown mounted on top of a precision liquid weighing tank 1 and includes a fixed pipe 2, a bellows 3, a washing ball 4, a joint 5, a fixed flange 6, and a floating flange 7. The fixed pipe 2 is secured to the top of the precision liquid weighing tank 1 by a hoisting mechanism, ensuring stability without interfering with the tank's normal operation. The end of the fixed pipe 2 is connected to one end of the bellows 3 via a joint 5, while the other end of the bellows 3 is connected to the washing ball 4. The bellows 3 exhibits excellent elasticity, allowing it to expand and contract freely under water pressure.

[0030] Fixed flange 6 is installed at the top opening of the liquid precision weighing chamber 1 to secure the wash ball 4 and bellows 3. A floating flange 7 is located at the junction of the wash ball 4 and bellows 3. When the wash ball 4 moves downward due to water pressure, the bellows 3 stretches and drives the floating flange 7 downward until the bottom surface of the floating flange 7 abuts the top surface of the fixed flange 6, achieving a seal. After cleaning is complete, the bellows 3 recovers its elasticity, driving the floating flange 7 upward and away from the fixed flange 6.

[0031] In some optional embodiments, the upper end of the through-hole of the floating flange 7 is provided with a first retaining groove 8a for docking with the bellows 3; the lower end of the through-hole is provided with a second retaining groove 8b for docking with the washing ball 4. A limit cover 9 is provided on the outer periphery of the floating flange 7 facing the fixed flange 6. The diameter of the limit cover 9 corresponds to the diameter of the fixed flange 6, ensuring that the floating flange 7 does not deviate from the center position during vertical movement.

[0032] In some optional embodiments, a first sealing groove 11 is provided on the side of the floating flange 7 facing the fixed flange 6, and a second sealing groove 12 is provided on the side of the fixed flange 6 facing the floating flange 7. The first sealing groove 11 and the second sealing groove 12 are arranged opposite each other, with a sealing ring 10 disposed therebetween. The sealing ring 10 is made of rubber and has excellent elasticity and sealing properties.

[0033] When cleaning begins, water pressure pushes the cleaning ball 4 downward, driving the floating flange 7 downward to press the sealing ring 10, causing the first sealing groove 11 and the second sealing groove 12 to squeeze the sealing ring 10, causing the sealing ring 10 to deform and form a seal. After cleaning is completed, the bellows 3 elastically recovers, driving the floating flange 7 upward, and the sealing ring 10 returns to its original shape, tightening the first sealing groove 11 to restore the seal.

[0034] In some optional embodiments, to enhance the sealing effect, the width of the sealing ring 10 on the side in contact with the first sealing groove 11 is smaller than the width on the side in contact with the second sealing groove 12, forming a wedge-shaped structure. Furthermore, the sealing ring 10 has a serrated surface on the side facing the first sealing groove 11. During cleaning, the first sealing groove 11 compresses the serrated surface, causing it to fold and compress to form a labyrinth seal, further enhancing the sealing effect.

[0035] In some optional implementations, in order to prevent water from overflowing from the first sealing groove 11 , a water baffle 13 is provided on the inner side of the first sealing groove 11 to block the water flow.

[0036] Through the above-described specific embodiments, the self-sealing suspension cleaning device for a liquid precision weighing bin of the present invention can automatically clean the liquid precision weighing bin 1 and maintain a sealing effect during the cleaning process, preventing liquid leakage and ensuring the accuracy and safety of the weighing bin.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A self-sealing suspension washer for a liquid precision weighing bin, mounted on the top of the liquid precision weighing bin, characterized in that: include: Fixed pipes, bellows, wash balls, joints, fixed flanges and floating flanges; The fixed pipe is located above the liquid precision weighing bin, and the end of the fixed pipe is connected to one end of the bellows through the joint, and the washing ball is connected to the other end of the bellows; The fixed flange is installed at the top opening of the liquid precision weighing tank, and the floating flange is arranged at the connection between the washing ball and the bellows. The washing ball extends vertically into the liquid precision weighing tank through the fixed flange. When cleaning begins, the washing ball moves downward due to the water pressure, thereby pulling the bellows downward to drive the floating flange to be close to the fixed flange; when cleaning is finished, the bellows elastically recovers and drives the floating flange to move away from the fixed flange surface.

2. The liquid precision weighing bin self-sealing suspension washer according to claim 1, characterized in that: A first clamping groove is provided at the upper end of the through hole of the floating flange, and a second clamping groove is provided at the lower end of the through hole of the floating flange; The bellows is connected to the first slot, and the washing ball is connected to the second slot.

3. The liquid precision weighing bin self-sealing suspension washer according to claim 1, characterized in that: A limiting cover is provided on the periphery of one side of the floating flange facing the fixed flange. The diameter of the limiting cover directly corresponds to that of the fixed flange, and the limiting cover is sleeved on the periphery of the fixed flange.

4. The liquid precision weighing bin self-sealing suspension washer according to claim 1, characterized in that: Also includes a sealing ring; A first sealing groove is provided on a side of the floating flange facing the fixed flange, and a second sealing groove is provided on a side of the fixed flange facing the floating flange. The first sealing groove and the second sealing groove are arranged opposite to each other, and the sealing ring is arranged between the first sealing groove and the second sealing groove, and the sealing ring separates the first sealing groove and the second sealing groove; During cleaning, the first sealing groove, the second sealing groove and the sealing ring are squeezed; when cleaning is finished, the sealing ring separates and restores the first sealing groove.

5. The liquid precision weighing bin self-sealing suspension washer according to claim 4, characterized in that: The width of the sealing ring at a side in contact with the first sealing groove is smaller than the width of the sealing ring at a side in contact with the second sealing groove.

6. The liquid precision weighing bin self-sealing suspension cleaning device according to claim 4, characterized in that: A serrated surface is provided on one side of the sealing ring facing the first sealing groove. When cleaning, the first sealing groove squeezes the serrated surface until the serrated surface is folded and compressed to form a labyrinth seal.

7. The liquid precision weighing bin self-sealing suspension washer according to claim 4, characterized in that: A water baffle is provided on the inner side of the first sealing groove to block the water flow.

8. The liquid precision weighing bin self-sealing suspension washer according to claim 4, characterized in that: The sealing ring is made of rubber.

9. The liquid precision weighing bin self-sealing suspension washer according to claim 1, characterized in that: The fixed pipe is fixed above the liquid precision weighing bin by hoisting.

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