Pickling box

Abstract

The utility model relates to the field of pickling equipment, in particular to a pickling box which comprises a box body and a rotating assembly, the box body is provided with a cleaning cavity for containing an acid solution, the rotating assembly comprises a power motor, a first rotating roller and a second rotating roller, and the first rotating roller and the second rotating roller are rotatably connected to the bottom wall of the cleaning cavity at intervals; a rotating space is reserved between the first rotating roller and the second rotating roller, the power motor is connected to the outer wall of the box body, and a rotating shaft of the power motor penetrates through the outer wall of the box body and is coaxially connected to a rotating shaft of the first rotating roller. According to the pipe cleaning device, the power motor, the first rotating roller and the second rotating roller are arranged to drive a pipe and the second rotating roller to rotate around the axes of the pipes, so that an acid solution in the cleaning cavity makes full contact with the pipe, a rust layer, oxide and other substances on the surface of the pipe are removed, and therefore the purposes of pipe cleaning and decontamination are achieved; and a worker does not need to manually rotate the pipe, so that an acid solution is not prone to making contact with the worker and corroding the skin of the worker, and therefore the use safety of the pickling box is improved.

Description

Technical Field

[0001] This application relates to the field of pickling equipment, and in particular to a pickling tank. Background Art

[0002] The pickling tank is mainly used to corrode the metal surface with an acidic solution to remove rust layers and oxides on the metal surface, etc., so as to achieve the purpose of cleaning and decontamination.

[0003] When the pipe is placed in the pickling tank, the bottom of the pipe abuts against the bottom wall of the pickling tank to form a support. It is difficult for the pickling solution in the pickling tank to contact the abutting surface between the pipe and the bottom wall of the pickling tank. Workers need to rotate the pipe in the pickling tank, and the acidic solution is likely to corrode the workers, thus reducing the safety of using the pickling tank. Utility Model Content

[0004] In order to improve the problem of the safety of using the pickling tank, this application provides a pickling tank.

[0005] A pickling tank provided by this application adopts the following technical solution:

[0006] A pickling tank includes a tank body and a rotating assembly. The tank body has a cleaning cavity for containing an acidic solution. The rotating assembly includes a power motor, a first rotating roller, and a second rotating roller. The first rotating roller and the second rotating roller are rotatably connected to the bottom wall of the cleaning cavity at intervals. The axes of the first rotating roller and the second rotating roller are parallel to each other. A rotating space for the pipe to be inserted is left between the first rotating roller and the second rotating roller. The power motor is connected to the outer wall of the tank body, and the rotating shaft of the power motor penetrates the outer wall of the tank body and is coaxially connected to the rotating shaft of the first rotating roller.

[0007] By adopting the above technical solution, the acidic solution is injected into the cleaning cavity, the pipe is inserted into the rotating space, the roller surfaces of the first rotating roller and the second rotating roller clamp the outer side of the pipe. The power motor runs, driving the first rotating roller to rotate around its own axis. The roller surface of the first rotating roller rolls in contact with the outer circumference of the pipe, driving the pipe and the second rotating roller to rotate around their own axes respectively, so that the acidic solution in the cleaning cavity fully contacts the pipe, removing rust layers and oxides on the pipe surface, etc., thereby achieving the purpose of cleaning and decontaminating the pipe. There is no need for workers to manually rotate the pipe, making it difficult for the acidic solution to contact the workers and corrode the skin of the workers, thus improving the safety of using the pickling tank.

[0008] Optionally, the box body is connected with a spraying component, which includes a storage tank, a pump body and a spray gun. The storage tank is connected to the box body. The inner cavity of the storage tank is for storing acidic solution. The spray gun is connected to the inner wall of the cleaning cavity. The pump body is connected to the outer wall of the storage tank. The liquid inlet end of the pump body communicates with the inner cavity of the storage tank, and the liquid outlet end of the pump body communicates with the spray gun. The pump body drives the acidic solution in the storage tank to be sprayed on the outer periphery of the pipe through the spray gun.

[0009] By adopting the above technical solution, when the pipe is placed in the rotating space, the pump body runs, driving the acidic solution in the storage tank to be sprayed on the top of the pipe through the spray gun, so that the pipe can fully contact with the acidic solution, thereby improving the cleaning efficiency of the pipe.

[0010] Optionally, a reflux channel is formed on the inner wall of the cleaning cavity. The reflux channel communicates the cleaning cavity with the inner cavity of the storage tank. The acidic solution in the cleaning cavity can flow back into the inner cavity of the storage tank through the reflux channel.

[0011] By adopting the above technical solution, when the pump body continuously sprays the acidic solution in the storage tank on the outer periphery of the pipe through the spray gun, the liquid level in the cleaning cavity continuously rises. The acidic solution in the cleaning cavity flows back into the inner cavity of the storage tank through the reflux channel, realizing the directional replenishment of the acidic solution in the storage tank, avoiding the pump body from idling and being damaged, and thus prolonging the service life of the pickling tank.

[0012] Optionally, a filter screen is connected to the inner wall of the reflux channel facing the cleaning cavity. The filter screen can screen the impurities in the acidic solution.

[0013] By adopting the above technical solution, when the acidic solution in the cleaning cavity enters the inner cavity of the storage tank through the reflux channel, the filter screen screens the impurities in the acidic solution, so that the acidic solution in the storage tank is not easily mixed with impurities, thereby ensuring that the pump body is not easily blocked by impurities and damaged, and further improving the stability of the operation of the pickling tank.

[0014] Optionally, the storage tank is connected with a prompting component, which includes a starting float, a contact switch and a warning lamp. A sliding groove for the starting float to slide is formed on the inner wall of the storage tank. The sliding direction of the starting float is parallel to the height direction of the storage tank. The warning lamp is connected to the surface of the storage tank. The contact switch is connected to the inner wall of the sliding groove far away from the box body. The contact switch is electrically connected to the warning lamp. When the contact switch abuts against the starting float and is turned on, the warning lamp is powered on and emits light.

[0015] By adopting the above technical solution, when the liquid level of the pickling solution in the storage tank continuously decreases, the starting float slides along the inner wall of the chute towards the contact switch. The warning switch abuts against the starting float and is turned on, and the warning light is powered on and emits light, warning the staff to replenish the pickling solution in the inner cavity of the storage tank in time, reducing the possibility of damage caused by the pump running idly, and thus prolonging the service life of the pickling tank.

[0016] Optionally, a cover body for covering the cleaning cavity is slidably connected to the box body, and the sliding direction of the cover body is parallel to the axis of the first rotating roller.

[0017] By adopting the above technical solution, when the pipe body is embedded in the rotating space, the cover body slides along the surface of the box body towards the cleaning cavity, and the cover body covers the cleaning cavity, so that the acidic solution sprayed by the spray gun on the outer circumference of the pipe is not easily splashed out of the cleaning cavity to pollute the surrounding environment, and the loss of the acidic solution can be reduced, thus reflecting the concept of environmental protection.

[0018] Optionally, rollers are rotatably connected to the surface of the cover body facing the box body, sliding grooves for the rollers to roll are formed on the surface of the box body, and the roller surfaces are in rolling contact with the bottom wall of the sliding grooves.

[0019] By adopting the above technical solution, when the cover body slides on the surface of the box body, it drives the roller surfaces to be in rolling contact with the inner wall of the sliding groove, and rolling friction replaces sliding friction, reducing the wear between the cover body and the box body, and thus prolonging the service life of the pickling tank.

[0020] Optionally, a scraper is slidably connected to the inner wall of the cleaning cavity, the sliding direction of the scraper is parallel to the axis of the first rotating roller, and the scraping end of the scraper can abut against the surface of the cover body and scrape the pickling solution on the surface of the cover body.

[0021] By adopting the above technical solution, when the cover body covers the cleaning cavity, the pickling solution sprayed by the spray gun on the outer circumference of the pipe splashes out and drips on the plate surface of the cover body. The scraper slides on the inner wall of the cleaning cavity, and the scraping end of the scraper abuts against the surface of the cover body and scrapes the pickling solution on the plate surface of the cover body, driving the pickling solution on the plate surface of the cover body to drip into the cleaning cavity under its own gravity, realizing the recovery of the pickling solution, and thus reducing the waste of the pickling solution.

[0022] Optionally, a transmission assembly is connected between the scraper and the first rotating roller. The transmission assembly includes a transmission lead screw, two synchronous pulleys and a synchronous belt used in cooperation with the synchronous pulleys. The transmission lead screw is rotatably connected to the inner wall of the cleaning cavity, the axis of the transmission lead screw is parallel to the axis of the first rotating roller, the scraper is threadedly connected to the outer circumference of the transmission lead screw, the scraper slides on the inner wall of the cleaning cavity along the axis of the transmission lead screw, one of the synchronous pulleys is coaxially connected to the transmission lead screw, the other synchronous pulley is coaxially connected to the rotating shaft of the first transmission roller, and the synchronous belt is tensioned and connected to the two synchronous pulleys.

[0023] By adopting the above technical solution, when the power motor operates to drive the first rotating roller to rotate, the synchronous belt tightly connects the two synchronous pulleys, driving the transmission screw rod to rotate around its own axis, and driving the scraper to slide along the axis of the transmission screw rod on the inner wall of the cleaning chamber. There is no need for an external power device to drive the scraper to slide, reducing energy loss, thus reflecting the concept of energy conservation.

[0024] Optionally, the box body is connected with a support frame, and the end face of the support frame is flush with the box body. When the cover body slides away from the cleaning chamber, the top surface of the support frame abuts against the bottom of the cover body to form a support.

[0025] By adopting the above technical solution, when the pipe needs to be taken out of the cleaning chamber, the cover body is driven to slide along the surface of the box body away from the cleaning chamber, and the sealing effect of the cover body on the cleaning chamber disappears, so that it is convenient for the staff to take out the pipe from the cleaning chamber. At the same time, the top surface of the support frame abuts against the bottom of the cover body to form a support, making the cover body not easily separated from the box body due to uneven force, thus ensuring the stability of the connection between the cover body and the box body.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The arrangement of the power motor, the first rotating roller and the second rotating roller drives the pipe and the second rotating roller to rotate around their own axes respectively, so that the acidic solution in the cleaning chamber is in full contact with the pipe, removing rust layers, oxides and other substances on the surface of the pipe, thus achieving the purpose of cleaning and decontaminating the pipe. There is no need for the staff to manually rotate the pipe, making it difficult for the acidic solution to contact the staff and corrode the skin of the staff, thus improving the use safety of the pickling tank.

[0028] 2. The arrangement of the storage tank, the pump body and the spray gun enables the pipe to be in full contact with the acidic solution, thus improving the cleaning efficiency of the pipe.

[0029] 3. The arrangement of the reflux channel realizes the directional replenishment of the acidic solution in the storage tank, avoiding the damage caused by the pump body running idly, thus prolonging the service life of the pickling tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the overall structural schematic diagram in the embodiment of the present application.

[0031] Figure 2 is the sectional view in the embodiment of the present application, mainly showing the transmission components.

[0032] Figure 3 is the sectional view in the embodiment of the present application, mainly showing the reflux channel.

[0033] Description of reference numerals: 1. Box body; 11. Cleaning chamber; 12. Return flow channel; 13. Slideway; 2. Rotating assembly; 21. Power motor; 22. First rotating roller; 221. Rotating space; 23. Second rotating roller; 3. Spraying assembly; 31. Storage tank; 311. Chute; 32. Pump body; 33. Spray gun; 4. Filter screen; 5. Warning assembly; 51. Starting float; 52. Contact switch; 53. Warning lamp; 6. Cover body; 7. Roller; 8. Scraper; 9. Transmission assembly; 91. Transmission lead screw; 92. Synchronous pulley; 93. Synchronous belt; 10. Support frame. Detailed implementation manners

[0034] The following further elaborates on this application in conjunction with the attached Figures 1-3 drawings.

[0035] An embodiment of this application discloses a pickling tank. Referring to Figure 1 and Figure 2 , the pickling tank includes a box body 1 and a rotating assembly 2. The box body 1 has a cleaning chamber 11 for containing pickling solution. The rotating assembly 2 is connected to the box body 1. The rotating assembly 2 can drive the pipe to rotate around its own axis, so that the pipe can be in full contact with the acidic solution, eliminating the need for manual rotation of the pipe by the staff, preventing the acidic solution from easily contacting the staff and corroding the skin of the staff, thereby improving the safety of using the pickling tank.

[0036] Referring to Figure 1 and Figure 2 , the rotating assembly 2 includes a power motor 21, a first rotating roller 22 and a second rotating roller 23. The first rotating roller 22 and the second rotating roller 23 are rotatably connected to the bottom wall of the cleaning chamber 11 at intervals. The axes of the first rotating roller 22 and the second rotating roller 23 are parallel to each other, and the axis of the first rotating roller 22 is parallel to the length direction of the box body 1. There is a rotating space 221 for the pipe to be inserted between the first rotating roller 22 and the second rotating roller 23. The power motor 21 is fixed to the side wall of the box body 1 by bolts. The end of the motor shaft of the power motor 21 passes through the outer wall of the box body 1 and is coaxially fixed to the rotating shaft of the first rotating roller 22.

[0037] Referring to Figure 1 and Figure 2 , when the pipe enters the cleaning chamber 11 and is inserted into the rotating space 221, the roller surfaces of the first rotating roller 22 and the second rotating roller 23 clamp the outer circumference of the pipe. The axis of the pipe is parallel to the axis of the first rotating roller 22. The power motor 21 operates to drive the first rotating roller 22 to rotate around its own axis. The roller surface of the first rotating roller 22 makes rolling contact with the outer circumference of the pipe, driving the pipe and the second rotating roller 23 to rotate around their own axes respectively. The pipe is in full contact with the acidic solution in the cleaning chamber 11, removing rust layers, oxides and other substances on the surface of the pipe, thereby achieving the purpose of cleaning and decontaminating the pipe.

[0038] Referring to Figure 1 andFigure 2 The box body 1 is equipped with a spraying component 3. The spraying component 3 can drive the acidic solution to spray on the outer periphery of the pipe. The spraying component 3 includes a storage tank 31, a pump body 32 and a spray gun 33. The storage tank 31 is welded and fixed at the bottom of the box body 1. The inner cavity of the storage tank 31 is for storing the acidic solution. The number of spray guns 33 can be one, two or more. In the embodiment of the present application, the number of spray guns 33 is multiple. The multiple spray guns 33 are divided into two groups. The two groups of spray guns 33 are connected to both sides in the width direction of the cleaning cavity 11. The multiple spray guns 33 in the same group are connected to the inner wall of the cleaning cavity 11 at intervals. The arrangement direction of the spray guns 33 is parallel to the length direction of the box body 1. The pump body 32 is fixed on the outer wall of the storage tank 31 by bolts. The liquid inlet end of the pump body 32 is communicated with the inner cavity of the storage tank 31 through a pipeline. The liquid outlet end of the pump body 32 is communicated with the multiple spray guns 33 through a pipeline. The pump body 32 drives the acidic solution in the storage tank 31 to spray on the outer periphery of the pipe through the spray guns 33, so that the acidic solution is in full contact with the pipe, thereby improving the cleaning efficiency of the pipe.

[0039] Refer to Figure 1 and Figure 3 As shown in FIGS. and, a reflux channel 12 is formed in the inner wall of the cleaning cavity 11. The reflux channel 12 communicates the cleaning cavity 11 with the inner cavity of the storage tank 31. The reflux channel 12 is located on the side of the notch of the cleaning cavity 11 close to the first rotating roller 22, and a filter screen 4 is installed near the inner wall of the cleaning cavity 11 in the reflux channel 12. The filter screen 4 can filter impurities in the acidic solution; when the pump body 32 continuously drives the acidic solution in the storage tank 31 to spray on the outer periphery of the pipe through the spray guns 33, the liquid level of the acidic solution in the cleaning cavity 11 continuously rises. When the liquid level of the acidic solution reaches the notch of the reflux channel 12, the acidic solution first passes through the filter screen 4 and then flows back to the inner cavity of the storage tank 31 through the reflux channel 12, realizing the recycling of the acidic solution, without continuously supplying the acidic solution all the time, reducing the material consumption, and thus reflecting the concept of energy saving.

[0040] Refer to Figure 1 and Figure 3, a revelation component 5 is installed on the storage tank 31, and the revelation component 5 can warn about the amount of acidic solution in the storage tank 31; the revelation component 5 includes a starting float 51, a contact switch 52 and a warning light 53. A sliding groove 311 for the starting float 51 to slide is formed on the inner wall of the storage tank 31. The sliding direction of the starting float 51 is parallel to the height direction of the storage tank 31. The warning light 53 is fixed to the outer wall of the storage tank 31 by bolts. The contact switch 52 is installed on the inner wall of the sliding groove 311 away from the box body 1, and the contact switch 52 is electrically connected to the warning light 53; when the liquid level of the acidic solution in the storage tank 31 continuously decreases, it drives the starting float 51 to slide along the inner wall of the sliding groove 311 towards the direction close to the contact switch 52. The contact switch 52 abuts against the starting float 51 and conducts, and the warning light 53 is powered on and emits light, warning the staff to replenish the acidic solution in the inner cavity of the storage tank 31 in time, avoiding the pump body 32 from idling and being damaged, thereby prolonging the service life of the pickling tank.

[0041] Refer to Figure 3 , a cover body 6 for covering the cleaning cavity 11 is slidably connected to the top surface of the box body 1. The sliding direction of the cover body 6 is parallel to the length direction of the box body 1. A roller 7 is rotatably connected to the surface of the cover body 6 facing the box body 1. The number of rollers 7 can be one, two or more. In the embodiment of the present application, the number of rollers 7 is two. The two rollers 7 are rotatably connected to both sides in the width direction of the cover body 6. The axis of the roller 7 is parallel to the width direction of the cover body 6. Sliding grooves 13 for the rollers 7 to roll are formed on the surface of the box body 1, and the roller surface of the roller 7 is in rolling contact with the bottom wall of the sliding groove 13.

[0042] Refer to Figure 1 and Figure 3 , a support frame 10 is welded and fixed to one end in the length direction of the box body 1. The top surface of the support frame 10 is flush with the top surface of the box body 1, and the top surface of the support frame 10 can abut against the bottom of the cover body 6 to form a support; when the pipe enters the cleaning cavity 11 and is embedded in the rotating space 221, the cover body 6 slides along the surface of the box body 1 towards the direction close to the cleaning cavity 11, and the cover body 6 covers the cleaning cavity 11, so that the acidic solution sprayed on the outer periphery of the pipe is not easily splashed out of the cleaning cavity 11, reducing the possibility of the surrounding environment being polluted, and at the same time reducing the consumption of the acidic solution; when the pipe in the cleaning cavity 11 is cleaned, the cover body 6 slides along the surface of the box body 1 towards the direction away from the cleaning cavity 11, and the closing effect of the cover body 6 on the cleaning cavity 11 disappears, so as to facilitate the removal of the pipe from the cleaning cavity 11, and the top surface of the support frame 10 abuts against the bottom of the cover body 6 to form a support, so that the cover body 6 is not easily separated from the box body 1, thereby improving the connection stability between the cover body 6 and the box body 1.

[0043] Refer to Figure 2, a scraper 8 is slidably connected to the inner wall of the cleaning chamber 11. The sliding direction of the scraper 8 is parallel to the length direction of the box body 1, and the scraping end of the scraper 8 can abut against the surface of the cover body 6 and scrape the acidic solution on the surface of the cover body 6, driving the acidic solution to naturally fall into the cleaning chamber 11 under its own gravity, realizing the recovery of the acidic solution.

[0044] Referring to Figure 2 , a transmission component 9 is connected between the scraper 8 and the first rotating roller 22. The transmission component 9 can drive the scraper 8 to slide on the inner wall of the cleaning chamber 11. The transmission component 9 includes a transmission screw rod 91, two synchronous pulleys 92 and a synchronous belt 93 used in cooperation with the synchronous pulleys 92. The transmission screw rod 91 rotates on the inner wall of the cleaning chamber 11. The axis of the transmission screw rod 91 is parallel to the axis of the first rotating roller 22. The scraper 8 is threadedly connected to the outer periphery of the transmission screw rod 91. The scraper 8 can slide on the inner wall of the cleaning chamber 11 along the axis of the transmission screw rod 91. One of the synchronous pulleys 92 is coaxially fixed on the transmission screw rod 91, and the other synchronous pulley 92 is coaxially fixed on the rotating shaft of the first rotating roller 22. The synchronous belt 93 is tensioned and connected to the two synchronous pulleys 92.

[0045] When referring to Figure 1 and Figure 2 , when the power motor 21 operates and drives the first rotating roller 22 to rotate, the synchronous belt 93 tensions the two synchronous pulleys 92, drives the transmission screw rod 91 to rotate around its own axis, drives the scraper 8 to slide on the inner wall of the cleaning chamber 11 along the axis of the transmission screw rod 91. The scraping end of the scraper 8 abuts against the surface of the cover body 6 and scrapes the acidic solution on the surface of the cover body 6, driving the acidic solution to drip back into the cleaning chamber 11 under its own gravity. There is no need for an external power device to drive, reducing energy loss, thus reflecting the concept of energy conservation.

[0046] The implementation principle of an acid pickling box in an embodiment of the present application is as follows: The pipe enters the cleaning chamber 11 and is embedded in the rotating space 221. The roller surface of the first rotating roller 22 and the roller surface of the second rotating roller 23 clamp the outer periphery of the pipe. The axis of the pipe is parallel to the axis of the first rotating roller 22. The power motor 21 operates and drives the first rotating roller 22 to rotate around its own axis. The roller surface of the first rotating roller 22 makes rolling contact with the outer periphery of the pipe, driving the pipe and the second rotating roller 23 to rotate around their respective axes. The pipe comes into full contact with the acidic solution in the cleaning chamber 11, removing rust layers, oxides and other substances on the surface of the pipe, thereby achieving the purpose of cleaning and decontaminating the pipe. There is no need for staff to manually rotate the pipe, making it difficult for the acidic solution to contact the staff and corrode the skin of the staff, thus improving the safety of using the acid pickling box.

[0047] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. Pickling tank, characterized in that: It includes a box body (1) and a rotating assembly (2). The box body (1) has a cleaning chamber (11) for accommodating an acidic solution. The rotating assembly (2) includes a power motor (21), a first rotating roller (22), and a second rotating roller (23). The first rotating roller (22) and the second rotating roller (23) are rotatably connected to the bottom wall of the cleaning chamber (11) at intervals. The axes of the first rotating roller (22) and the second rotating roller (23) are parallel to each other. A rotating space (221) for the pipe to be inserted is left between the first rotating roller (22) and the second rotating roller (23). The power motor (21) is connected to the outer wall of the box body (1), and the rotating shaft of the power motor (21) penetrates the outer wall of the box body (1) and is coaxially connected to the rotating shaft of the first rotating roller (22).

2. The pickling tank according to claim 1, characterized in that: The box body (1) is connected with a spraying assembly (3). The spraying assembly (3) includes a storage tank (31), a pump body (32), and a spray gun (33). The storage tank (31) is connected to the box body (1). The inner cavity of the storage tank (31) is for storing the acidic solution. The spray gun (33) is connected to the inner wall of the cleaning chamber (11). The pump body (32) is connected to the outer wall of the storage tank (31). The liquid inlet end of the pump body (32) communicates with the inner cavity of the storage tank (31), and the liquid outlet end of the pump body (32) communicates with the spray gun (33). The pump body (32) drives the acidic solution in the storage tank (31) to be sprayed on the outer periphery of the pipe through the spray gun (33).

3. The pickling tank according to claim 2, characterized in that: A reflux channel (12) is opened on the inner wall of the cleaning chamber (11). The reflux channel (12) communicates the cleaning chamber (11) and the inner cavity of the storage tank (31). The acidic solution in the cleaning chamber (11) can flow back into the inner cavity of the storage tank (31) through the reflux channel (12).

4. The pickling tank according to claim 3, wherein: A filter screen (4) is connected to the inner wall of the reflux channel (12) facing the cleaning chamber (11). The filter screen (4) can screen impurities in the acidic solution.

5. The pickling tank according to claim 2, characterized in that: The storage tank (31) is connected with a prompting assembly (5). The prompting assembly (5) includes a starting float (51), a contact switch (52), and a warning lamp (53). A sliding groove (311) for the starting float (51) to slide is opened on the inner wall of the storage tank (31). The sliding direction of the starting float (51) is parallel to the height direction of the storage tank (31). The warning lamp (53) is connected to the surface of the storage tank (31). The contact switch (52) is connected to the inner wall of the sliding groove (311) away from the box body (1). The contact switch (52) is electrically connected to the warning lamp (53). When the contact switch (52) abuts against the starting float (51) and is turned on, the warning lamp (53) is powered on and emits light.

6. The pickling tank according to claim 1, wherein: The box body (1) is slidably connected with a cover body (6) for covering the cleaning chamber (11). The sliding direction of the cover body (6) is parallel to the axis of the first rotating roller (22).

7. The pickling tank according to claim 6, characterized in that: A roller (7) is rotatably connected to the surface of the cover body (6) facing the box body (1). A slideway (13) for the roller (7) to roll is opened on the surface of the box body (1). The rolling surface of the roller (7) is in rolling contact with the bottom wall of the slideway (13).

8. The pickling tank according to claim 6, wherein: A scraper (8) is slidably connected to the inner wall of the cleaning chamber (11). The sliding direction of the scraper (8) is parallel to the axis of the first rotating roller (22), and the scraping end of the scraper (8) can abut against the surface of the cover body (6) and scrape the pickling solution on the surface of the cover body (6).

9. The pickling tank according to claim 8, wherein: A transmission assembly (9) is connected between the scraper (8) and the first rotating roller (22). The transmission assembly (9) includes a transmission lead screw (91), two synchronous pulleys (92), and a synchronous belt (93) used in cooperation with the synchronous pulleys (92). The transmission lead screw (91) is rotatably connected to the inner wall of the cleaning chamber (11). The axis of the transmission lead screw (91) is parallel to the axis of the first rotating roller (22). The scraper (8) is threadedly connected to the outer periphery of the transmission lead screw (91). The scraper (8) slides along the axis of the transmission lead screw (91) on the inner wall of the cleaning chamber (11). One of the synchronous pulleys (92) is coaxially connected to the transmission lead screw (91), and the other synchronous pulley (92) is coaxially connected to the rotating shaft of the first transmission roller. The synchronous belt (93) is tensioned and connected to the two synchronous pulleys (92).

10. The pickling tank according to claim 6, wherein: The box body (1) is connected with a support frame (10). The end face of the support frame (10) is flush with the box body (1). When the cover body (6) slides away from the cleaning chamber (11), the top surface of the support frame (10) abuts against the bottom of the cover body (6) to form a support.

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