A density meter flushing device

Abstract

This utility model provides a hydrometer rinsing device, relating to the field of hydrometer rinsing technology. It includes a fixed cleaning device comprising a housing, an adapter fixing component, and a rinsing component, with the adapter fixing component and rinsing component disposed inside the housing. The adapter fixing component includes a drive disk located at the top of the housing, and the drive disk has a central through-hole that allows passage through the lower part of the hydrometer body. Several fixing rods are slidably connected to the drive disk, the number of which corresponds to the mounting holes on the fixing flange of the hydrometer body. The fixing rods are evenly spaced circumferentially outside the central through-hole, and can be detachably connected to the fixing flange through the mounting holes. This utility model, through the adapter fixing component, can adapt to hydrometers of different specifications. The use of multiple nozzles for thorough rinsing improves cleaning efficiency, and the operation is simple, effectively reducing costs and labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of hydrometer rinsing technology, and in particular to a hydrometer rinsing device. Background Technology

[0002] In modern industrial production, the stable operation of desulfurization processes is crucial for reducing environmental pollution and improving production efficiency. Accurate measurement of desulfurization slurry density is a key factor in ensuring the efficient operation of the desulfurization process, directly affecting core indicators such as desulfurization efficiency and product quality. Currently, various types of desulfurization slurry density meters, including differential pressure, Coriolis, nuclear radiation, and ultrasonic types, are widely used in industrial production. While these density meters each have their own characteristics and can meet measurement needs to a certain extent, they all face the challenge of periodic cleaning to maintain measurement accuracy during actual operation.

[0003] Currently, traditional methods for cleaning densitometers have several shortcomings: First, the fixed structure design of existing densitometer rinsing devices is relatively simple, lacking flexibility and versatility, making it difficult to adapt to densitometers of different specifications. When dealing with densitometers of various specifications, frequent changes of specialized equipment are often required during the cleaning process. This not only consumes a lot of time and manpower but also significantly increases cleaning costs, reduces production efficiency, and places a heavy economic burden on enterprises. Second, the nozzle layout of the rinsing device is unreasonable. The distribution of nozzles fails to fully consider the structural characteristics of the densitometer and cleaning requirements, resulting in limited rinsing coverage and easy cleaning blind spots. Some stains are difficult to be washed away by the cleaning fluid, greatly reducing the cleaning effect and failing to effectively guarantee the measurement accuracy of the densitometer, thus affecting the stable operation of the entire desulfurization process.

[0004] Based on the above problems, the development of a high-efficiency and highly adaptable densitometer flushing device has become an urgent need to ensure the stable operation of the desulfurization process and improve the efficiency of industrial production. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing densitometer cleaning methods, such as poor adaptability and low cleaning efficiency, and to provide a densitometer rinsing device.

[0006] This utility model is achieved through the following technical solution: a densitometer rinsing device, including a fixed cleaning device, which includes a housing, an adapter fixing component, and a rinsing component, which are arranged sequentially from top to bottom inside the housing; the adapter fixing component includes a drive disk, which is located at the top inside the housing, and has a central through hole that can pass through the lower part of the densitometer body; the drive disk is slidably connected to a plurality of fixing rods for fixing the densitometer body, the number of fixing rods corresponding to the mounting holes on the fixing flange of the densitometer body, and the fixing rods are evenly spaced around the outside of the central through hole, and the fixing rods can be detachably connected to the fixing flange through the mounting holes; the densitometer body is fixed in position by the adapter fixing component, and the lower part of the densitometer body can extend into the working area of ​​the rinsing component after passing through the central through hole and the drive disk.

[0007] This rinsing device, through its structural design, achieves the positioning of the densitometer body within the device, providing a foundation for cleaning. The layout design of the adapter fixing components and rinsing components makes the entire device compact, facilitating the cleaning of the densitometer and improving the convenience of the cleaning operation. Simultaneously, the sliding connection between the fixing rod and the drive plate, and the detachable connection between the fixing rod and the mounting hole, allow multiple fixing rods to converge or expand outwards at a common point, enabling the mounting hole to align with the connection end of the fixing rod. This means the adapter fixing components can adapt to the fixing requirements of densitometers of different specifications. Compared to traditional single fixing structures, this improves the adaptability of the rinsing device and reduces the cost of frequent equipment changes when cleaning densitometers of different specifications.

[0008] A further improvement of this utility model is that the drive disk has an arc-shaped track groove corresponding to the fixed rod. One end of the fixed rod is connected to the mounting hole, and the other end of the fixed rod slides through the track groove and is connected to a sliding block. The sliding block is slidably connected to a sliding rod parallel to the drive disk, and the end of the sliding rod away from the central through hole is fixedly connected to the inner side wall of the outer shell.

[0009] A further improvement of this utility model is that the fixing rod includes a horizontal rod, an upper vertical rod, and a lower vertical rod. The horizontal rod is parallel to the drive disc. The end of the horizontal rod near the central through hole is vertically connected to the upper vertical rod. The upper vertical rod is inserted into the mounting hole. The end of the horizontal rod near the track groove is vertically connected to the lower vertical rod. The lower vertical rod slides through the track groove and then connects to the sliding block.

[0010] A further improvement of this utility model is that a fixed base is provided on the outer side wall of the outer shell, and a servo motor is provided on the fixed base; the drive disk is movably disposed on the top of the inner shell, and the drive disk is connected to the output shaft of the servo motor through a transmission component, and the servo motor can drive the drive disk to rotate forward or backward through the transmission component.

[0011] A further improvement of this utility model is that the transmission assembly includes a drive gear and an arc-shaped driven rack. The drive gear is connected to the output shaft of the servo motor. An arc-shaped through groove corresponding to the drive gear is provided on the outer shell. The working part of the drive gear moves through the through groove and meshes with the driven rack. The driven rack is fixed at the edge of the drive disc and is located in the space between two adjacent fixed rods.

[0012] A further improvement of this utility model is that the flushing assembly includes an infusion pipe, which is fixed to the inner wall of the outer shell by a fixed connecting block. Several flushing nozzles are provided on the side of the infusion pipe near the lower part of the densitometer body. The infusion pipe is connected to an input pipe, which extends out of the outer shell and is connected to an external water supply device. An output pipe is connected to the bottom of the outer shell and is connected to an external water collection device.

[0013] A further improvement of this utility model is that the infusion pipeline is provided in several groups, and the several groups of infusion pipelines are arranged evenly at intervals from top to bottom; the several groups of infusion pipelines are connected in series, and the infusion pipeline located at the top is connected to the input pipe.

[0014] A further improvement of this utility model is that the infusion pipeline is an annular pipeline, and several of the flushing nozzles are evenly spaced along the circumference on the inner side wall of the annular pipeline, and the internal space of the annular pipeline is the working area of ​​the flushing assembly.

[0015] A further improvement of this utility model is that a control button is provided on the fixed base, which is used to control the operation of the servo motor.

[0016] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0017] 1. This rinsing device uses a servo motor to drive the drive disc to rotate, allowing the fixing rods to move closer together and outward, accurately aligning with the mounting holes on the fixing flanges of different specifications of densitometers. This enables the fixing and cleaning of densitometers of different specifications, avoiding frequent replacement of specialized equipment, and providing strong adaptability, thus significantly reducing cleaning costs.

[0018] 2. This rinsing device is equipped with multiple sets of infusion pipelines, each set with multiple rinsing nozzles. The infusion pipelines are arc-shaped, and the nozzles are evenly distributed circumferentially. The cleaning fluid is sprayed from multiple directions, which can rinse the bottom immersion end of the densitometer body from all angles without dead angles, greatly improving cleaning efficiency and effectively ensuring the measurement accuracy of the densitometer.

[0019] 3. The fixed base of this rinsing device is equipped with control buttons, which can easily control the start and rotation direction of the servo motor. Operators can complete the fixing and cleaning of the densitometer by pressing the buttons, realizing automated control, reducing labor intensity, and improving operational convenience and safety. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0022] Figure 2 for Figure 1 Side view;

[0023] Figure 3 This is a schematic diagram of the structure of the adapter fixing component and the rinsing component in a specific embodiment of this utility model;

[0024] Figure 4 This is a split view of the densitometer body and the adapter fixing component in a specific embodiment of this utility model;

[0025] Figure 5 This is a partial three-dimensional schematic diagram of the bottom of the adapter fixing component in a specific embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure between the sliding block and the sliding rod in a specific embodiment of the present invention.

[0027] In the diagram: 1. Densitometer body; 11. Fixed flange; 111. Mounting hole; 2. Fixed cleaning device; 3. Housing; 31. Through groove; 4. Adaptor fixing assembly; 41. Drive plate; 411. Track groove; 42. Fixed rod; 421. Horizontal rod; 422. Upper vertical rod; 423. Lower vertical rod; 43. Sliding block; 44. Sliding rod; 45. Driven rack; 46. Central through hole; 5. Flushing assembly; 51. Infusion pipeline; 52. Flushing nozzle; 53. Input pipe; 54. Output pipe; 55. Fixed connecting block; 6. Fixed base; 61. Servo motor; 62. Drive gear; 63. Control button. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] Please refer to the attached document. Figure 1 and Figure 2 The following is a description of a specific embodiment: The hydrometer rinsing device of this utility model includes a fixed cleaning device 2, which comprises a housing 3, an adapter fixing component 4, and a rinsing component 5. The adapter fixing component 4 and the rinsing component 5 are arranged sequentially from top to bottom inside the housing 3. The adapter fixing component 4 includes a drive disk 41, which is located at the top inside the housing 3 and has a central through hole 46 that allows the lower part of the hydrometer body 1 to pass through. The drive disk 41 is slidably connected to several fixing rods 42 for fixing the hydrometer body 1. The number of fixing rods 42 corresponds to the mounting holes 111 on the fixing flange 11 of the hydrometer body 1, and the fixing rods 42 are evenly spaced circumferentially outside the central through hole 46. The fixing rods 42 can be detachably connected to the fixing flange 11 through the mounting holes 111. The hydrometer body 1 is fixed in position by the adapter fixing component 4, and the lower part of the hydrometer body 1 can extend into the working area of ​​the rinsing component 5 after passing through the central through hole 46 and the drive disk 41.

[0030] When it is necessary to clean the densitometer body 1, first pass the lower part of the densitometer body 1 through the central through hole 46 of the drive plate 41, adjust the position of the fixing rod 42 so that it is detachably connected to the fixing flange 11 through the mounting hole 111 on the fixing flange 11, thereby fixing the densitometer body 1. At this time, the lower part of the densitometer body 1 extends into the working area of ​​the rinsing assembly 5, in preparation for subsequent cleaning.

[0031] Through the aforementioned structural design, this rinsing device achieves the positioning of the densitometer body 1 within the device, providing a foundation for cleaning. The layout design of the adapter fixing component 4 and the rinsing component 5 makes the entire device compact, facilitating the cleaning of the densitometer and improving the convenience of the cleaning operation. Simultaneously, the sliding connection between the fixing rod 42 and the drive disk 41, and the detachable connection between the fixing rod 42 and the mounting hole 111, allow multiple fixing rods 42 to converge or expand outwards at common points, enabling the mounting hole 111 to align with the connection end of the fixing rod 42. This means the adapter fixing component 4 can adapt to the fixing requirements of densitometers of different specifications. Compared to traditional single fixing structures, this improves the adaptability of the rinsing device and reduces the cost of frequent equipment replacement when cleaning densitometers of different specifications.

[0032] For details, please refer to the appendix. Figure 3 The drive disk 41 has an arc-shaped track groove 411 corresponding to the fixed rod 42. One end of the fixed rod 42 is connected to the mounting hole 111, and the other end of the fixed rod 42 slides through the track groove 411 and is connected to a sliding block 43. The sliding block 43 is slidably connected to a sliding rod 44 parallel to the drive disk 41. The end of the sliding rod 44 away from the central through hole 46 is fixedly connected to the inner side wall of the outer shell 3.

[0033] When the drive disc 41 rotates, the inner wall of the track groove 411 pushes one end of the fixed rod 42, and the sliding block 43 connected to the other end of the fixed rod 42 slides on the sliding rod 44. Since the sliding rod 44 is fixed to the inner wall of the housing 3, the fixed rod 42 moves along a specific path under the constraint of the track groove 411 and the sliding rod 44.

[0034] This rinsing device, through the cooperation of the arc-shaped track groove 411 and the sliding rod 44, makes the movement of the fixed rod 42 more stable and precise. When cleaning densitometers of different specifications, the position of the fixed rod 42 can be adjusted more accurately to align it with the mounting holes 111 on the fixing flange 11 of different specifications of densitometers. This further improves the adaptability of this rinsing device to densitometers of different specifications, ensures the reliability of the fixation, and avoids the densitometer shaking during the cleaning process from affecting the cleaning effect.

[0035] For details, please refer to the appendix. Figure 4 and 5 The fixed rod 42 includes a horizontal rod 421, an upper vertical rod 422, and a lower vertical rod 423. The horizontal rod 421 is parallel to the drive disk 41. One end of the horizontal rod 421 near the central through hole 46 is perpendicularly connected to the upper vertical rod 422. The upper vertical rod 422 is inserted into the mounting hole 111. One end of the horizontal rod 421 near the track groove 411 is perpendicularly connected to the lower vertical rod 423. The lower vertical rod 423 slides through the track groove 411 and is connected to the sliding block 43.

[0036] When the drive disc 41 rotates and drives the fixed rod 42 to move, the horizontal rod 421 plays the role of connecting and transmitting force. The upper vertical rod 422 is inserted into the mounting hole 111 to fix the densitometer body 1. The lower vertical rod 423 slides in the track groove 411 and drives the sliding block 43 to ensure that the fixed rod 42 moves along the predetermined track.

[0037] This rinsing device enhances the stability of the connection between the fixing rod 42 and the densitometer fixing flange 11 through the unique structural design of the fixing rod 42. The insertion method of the upper vertical rod 422 into the mounting hole 111, compared to simpler connection methods, can better withstand the external forces generated during the cleaning process, preventing the densitometer from falling off during cleaning. Simultaneously, the coordinated work of each rod ensures the accurate movement of the fixing rod 42 when the drive disc 41 rotates, improving its adaptability to densitometers of different specifications, thereby enhancing the overall practicality of this rinsing device.

[0038] Specifically, refer to Figure 1 A fixed base 6 is provided on the outer side wall of the outer shell 3, and a servo motor 61 is provided on the fixed base 6; the drive disk 41 is movably disposed on the top of the inner shell 3, and the drive disk 41 is connected to the output shaft of the servo motor 61 through a transmission component, and the servo motor 61 can drive the drive disk 41 to rotate forward or reverse through the transmission component.

[0039] The servo motor 61 on the fixed base 6 is started, and the output shaft of the servo motor 61 rotates, driving the drive disk 41 to rotate forward or backward through the transmission component. The rotation of the drive disk 41 changes the position of the fixed rod 42 to adapt to the fixing requirements of different densitometers.

[0040] This rinsing device achieves automated control of the rotation of the drive disc 41 through the design of the servo motor 61. Compared with manually adjusting the position of the fixing rod 42, it is not only more convenient to operate, saving manpower and time, but also allows for faster adjustment of the fixing rod 42 position, improving cleaning efficiency. Moreover, by controlling the forward and reverse rotation of the servo motor 61, the spacing of the fixing rod 42 can be flexibly adjusted, better adapting to different specifications of densitometers, further reducing cleaning costs.

[0041] For details, please refer to the appendix. Figure 3 The transmission assembly includes a drive gear 62 and an arc-shaped driven rack 45. The drive gear 62 is connected to the output shaft of the servo motor 61. An arc-shaped through groove 31 corresponding to the drive gear 62 is provided on the housing 3. The working part of the drive gear 62 moves through the through groove 31 and meshes with the driven rack 45. The driven rack 45 is fixed at the edge of the drive disk 41 and is located in the space between two adjacent fixed rods 42.

[0042] When the servo motor 61 is started, it drives the drive gear 62 to rotate. The rotation of the drive gear drives the driven rack 45, which is meshed with it, to rotate. Since the driven rack 45 is fixed at the edge of the drive disk 41, its rotation drives the drive disk 41 to rotate along its central axis. At this time, the fixed rod 42 is subjected to the force of the inner wall of the track groove 411, which causes the sliding block 43 connected to the fixed rod 42 to slide along the track of the sliding rod 44, so that multiple fixed rods 42 can automatically converge or expand outwards.

[0043] This rinsing device uses the drive gear 62 and the arc-shaped driven rack 45 to form a transmission assembly, which is simple in structure and highly efficient in transmission. This meshing transmission method can stably transmit the power of the servo motor 61 to the drive disk 41, ensuring the smooth rotation of the drive disk 41, and thus ensuring the stable movement of the fixed rod 42, improving the stability and reliability of fixing densitometers of different specifications. At the same time, the design of the arc-shaped through groove 31 not only ensures the normal meshing of the drive gear 62 and the driven rack 45, but also provides a certain guiding and constraining effect on the movement of the drive gear 62, improving the stability of the entire transmission system.

[0044] In one embodiment, reference Figure 3 and Figure 6 The flushing assembly 5 includes an infusion pipe 51, which is fixed to the inner wall of the housing 3 by a fixed connecting block 55. Several flushing nozzles 52 are provided on the side of the infusion pipe 51 near the lower part of the densitometer body 1. The infusion pipe 51 is connected to an input pipe 53, which extends out of the housing 3 and is connected to an external water supply device. An output pipe 54 is connected to the bottom of the housing 3 and is connected to an external water collection device.

[0045] The external water supply device delivers cleaning fluid to the infusion pipeline 51 through the input pipe 53. The cleaning fluid flows in the infusion pipeline 51 and is sprayed out from the flushing nozzle 52 near the lower part of the densitometer body 1 to flush the lower part of the densitometer body 1. The flushed wastewater flows into the external water collection device through the output pipe 54.

[0046] This flushing device effectively cleans the densitometer body 1 through the coordinated operation of the infusion pipe 51, flushing nozzle 52, input pipe 53, and output pipe 54. The flushing nozzle 52 allows the cleaning fluid to be directly sprayed onto the areas of the densitometer body 1 that require cleaning. Compared to traditional flushing devices with unreasonable nozzle layouts, this improves the targeting and effectiveness of the cleaning, reduces blind spots, ensures the measurement accuracy of the densitometer, and is beneficial to the stable operation of the desulfurization process. Simultaneously, the fixing block 55 secures the infusion pipe 51 to the inner wall of the outer casing 3, ensuring the stability of the entire flushing assembly 5.

[0047] Specifically, refer to Figure 6The infusion pipeline 51 is provided in several groups, and the infusion pipeline 51 in several groups is arranged at even intervals from top to bottom; the infusion pipeline 51 in several groups is connected in series, and the infusion pipeline 51 located at the top is connected to the input pipe 53.

[0048] The cleaning fluid enters the uppermost infusion pipe 51 from the input pipe 53. Since several sets of infusion pipes 51 are connected in series and evenly spaced from top to bottom, the cleaning fluid flows through each layer of infusion pipes 51 in sequence and is sprayed out from the flushing nozzles 52 of each layer to flush the densitometer body 1 at different heights.

[0049] This flushing device, through the design of multiple sets of series-connected and layered infusion pipelines 51, allows the cleaning fluid to cover different heights of the densitometer body 1, expanding the flushing coverage area, further reducing cleaning dead zones, and improving cleaning efficiency and quality. Compared with flushing methods using a single infusion pipeline, it can more comprehensively clean the densitometer body 1, ensuring that the measurement accuracy of the densitometer is not affected, and better meeting actual cleaning needs.

[0050] Specifically, refer to Figure 6 The infusion pipeline 51 is an annular pipeline, and several flushing nozzles 52 are evenly spaced along the circumference on the inner side wall of the annular pipeline. The internal space of the annular pipeline is the working area of ​​the flushing assembly 5.

[0051] The arc-shaped infusion pipe 51 allows the flushing nozzles 52 to be evenly distributed circumferentially on the inner wall of the annular pipe. When the cleaning fluid flows into the infusion pipe 51, it is sprayed out from the flushing nozzles 52 in all directions to flush the lower part of the densitometer body 1 located in the inner space of the annular pipe in all directions.

[0052] This flushing device, through an arc-shaped liquid delivery pipe 51 and circumferentially evenly arranged flushing nozzles 52, achieves all-round, thorough flushing of the lower part of the densitometer body 1. Compared with traditional nozzle layouts, this greatly improves the cleaning effect, more thoroughly removes stains from the densitometer surface, effectively ensures the measurement accuracy of the densitometer, and provides more reliable support for the stable operation of the desulfurization process.

[0053] In one embodiment, reference Figure 1 A control button 63 is provided on the fixed base 6, which is used to control the operation of the servo motor 61.

[0054] The operator can control the start, stop, and forward / reverse rotation of the servo motor 61 by pressing the control button 63 on the fixed base 6, thereby controlling the rotation of the drive disk 41 and adjusting the position of the fixed rod 42.

[0055] The control button 63 allows operators to easily control the key actions of the entire device, making operation simple and intuitive. This improves the ease of operation, reduces the difficulty and labor intensity of the operator's work, and also enhances the safety and reliability of the device's operation, further improving the practicality of the entire densitometer rinsing device.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydrometer rinsing device, comprising a fixed cleaning device (2), characterized in that, The fixed cleaning device (2) includes a housing (3), an adapter fixing component (4), and a rinsing component (5). The adapter fixing component (4) and the rinsing component (5) are arranged sequentially from top to bottom inside the housing (3). The adapter fixing component (4) includes a drive disk (41), which is located at the top inside the housing (3). The drive disk (41) has a central through hole (46) that can pass through the lower part of the densitometer body (1). The drive disk (41) is slidably connected to several fixing rods (42) for fixing the densitometer body (1). The number of (42) corresponds to the mounting holes (111) on the fixed flange (11) of the densitometer body (1), and the fixing rods (42) are evenly spaced around the outside of the central through hole (46) in the circumferential direction. The fixing rods (42) can be detachably connected to the fixed flange (11) through the mounting holes (111). The densitometer body (1) is fixed in position by the adapter fixing assembly (4), and the lower part of the densitometer body (1) can extend into the working area of ​​the flushing assembly (5) after passing through the central through hole (46) and the drive plate (41).

2. The hydrometer rinsing device according to claim 1, characterized in that, The drive disk (41) has an arc-shaped track groove (411) corresponding to the fixed rod (42). One end of the fixed rod (42) is connected to the mounting hole (111), and the other end of the fixed rod (42) slides through the track groove (411) and is connected to a sliding block (43). The sliding block (43) is slidably connected to a sliding rod (44) parallel to the drive disk (41). The end of the sliding rod (44) away from the central through hole (46) is fixedly connected to the inner wall of the outer shell (3).

3. The hydrometer rinsing device according to claim 2, characterized in that, The fixed rod (42) includes a horizontal rod (421), an upper vertical rod (422) and a lower vertical rod (423). The horizontal rod (421) is parallel to the drive disk (41). The end of the horizontal rod (421) near the central through hole (46) is vertically connected to the upper vertical rod (422). The upper vertical rod (422) is inserted into the mounting hole (111). The end of the horizontal rod (421) near the track groove (411) is vertically connected to the lower vertical rod (423). The lower vertical rod (423) slides through the track groove (411) and is connected to the sliding block (43).

4. The hydrometer rinsing device according to claim 3, characterized in that, A fixed base (6) is provided on the outer side wall of the outer shell (3), and a servo motor (61) is provided on the fixed base (6); the drive disk (41) is movably disposed on the top of the inner shell (3), and the drive disk (41) is connected to the output shaft of the servo motor (61) through a transmission component. The servo motor (61) can drive the drive disk (41) to rotate forward or reverse through the transmission component.

5. A hydrometer rinsing device according to claim 4, characterized in that, The transmission assembly includes a drive gear (62) and an arc-shaped driven rack (45). The drive gear (62) is connected to the output shaft of the servo motor (61). An arc-shaped through groove (31) corresponding to the drive gear (62) is provided on the housing (3). The working part of the drive gear (62) moves through the through groove (31) and meshes with the driven rack (45). The driven rack (45) is fixed to the edge of the drive disc (41), and the driven rack (45) is located in the space between two adjacent fixed rods (42).

6. A hydrometer rinsing device according to claim 1 or 5, characterized in that, The flushing assembly (5) includes an infusion pipe (51), which is fixed to the inner wall of the outer shell (3) by a fixed connecting block (55). Several flushing nozzles (52) are provided on the side of the infusion pipe (51) near the lower part of the densitometer body (1). The infusion pipe (51) is connected to an input pipe (53), which passes through the outer shell (3) and is connected to an external water supply device. An output pipe (54) is connected to the bottom of the outer shell (3), and the output pipe (54) is connected to an external water collection device.

7. A hydrometer rinsing device according to claim 6, characterized in that, The infusion pipeline (51) is provided in several groups, and the infusion pipeline (51) in several groups is arranged evenly from top to bottom; the infusion pipeline (51) in several groups is connected in series, and the infusion pipeline (51) at the top is connected to the input pipe (53).

8. A hydrometer rinsing device according to claim 7, characterized in that, The infusion pipeline (51) is an annular pipeline, and several flushing nozzles (52) are evenly spaced along the circumference on the inner wall of the annular pipeline. The internal space of the annular pipeline is the working area of ​​the flushing assembly (5).

9. A hydrometer rinsing device according to claim 4, characterized in that, A control button (63) is provided on the fixed base (6), which is used to control the operation of the servo motor (61).

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