Water reducing agent storage and transportation tank

Abstract

The utility model discloses a water reducing agent storage and transportation tank. The water reducing agent storage and transportation tank comprises a base, a tank body, a stirring structure and a driving structure. Wherein the tank body is fixed on one side of the base, a water reducing agent inlet pipe is arranged on one side, deviating from the base, of the tank body, and a water reducing agent outlet pipe is arranged on one side, facing the base, of the tank body; the stirring structure is located in the tank body, the stirring structure is provided with a stirring part, the stirring part has an extension length in the depth direction of the tank body, and the stirring structure has a rotational degree of freedom in the circumferential direction of the tank body; the driving structure is located on the side, away from the base, of the tank body and connected with the stirring structure, and the driving structure provides rotating power for the stirring structure. According to the utility model, the stirring structure is arranged in the tank body, so that after the water reducing agent is stored in the tank body for a long time and precipitates are generated, the driving structure is started to drive the stirring structure to stir the water reducing agent so as to remove the precipitates in the water reducing agent.

Description

Technical Field

[0001] The present application relates to the field of storage tanks, and in particular to a water reducing agent storage and transportation tank. Background Art

[0002] Water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete. Water reducers are divided into solid water reducers and liquid water reducers. Generally speaking, solid water reducers are more convenient to store and transport; liquid water reducers are more complicated to store and transport.

[0003] Liquid water reducer will precipitate after long-term storage, and needs to be stirred when used, so a stirring device is used. Since the stirring device and the storage tank are separate structures, the stirring process of the liquid water reducer is relatively cumbersome. In the prior art, it is usually stirred manually, which is inefficient and time-consuming.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Utility Model Content

[0005] The main purpose of the present application is to provide a water reducing agent storage and transportation tank, aiming to solve the current technical problem of precipitation caused by long-term storage of liquid water reducing agent.

[0006] To achieve the above-mentioned purpose, the present application provides a water reducer storage and transportation tank, which includes a base, a tank body, a stirring structure and a driving structure; wherein the tank body is fixed to one side of the base, a water reducer inlet pipe is provided on the side of the tank body away from the base, and a water reducer outlet pipe is provided on the side of the tank body facing the base; the stirring structure is located in the tank body, the stirring structure has a stirring part, the stirring part has an extension length in the depth direction of the tank body, and the stirring structure has a rotational freedom in the circumferential direction of the tank body; the driving structure is located on the side of the tank body away from the base and is connected to the stirring structure, and the driving structure provides rotational power for the stirring structure.

[0007] Optionally, the driving structure includes: a motor, a driving gear, a rotating shaft and a driven gear, wherein the motor is fixed to the side of the tank body away from the base; the driving gear is arranged at the end of the output shaft of the motor; the rotating shaft is arranged in the tank body, the end of the rotating shaft away from the base extends out of the tank body and is rotatably connected to the tank body, and the end of the rotating shaft facing the base is located in the tank body and is rotatably connected to the tank body; the driven gear is sleeved on the end of the rotating shaft extending out of the tank body; the driven gear is meshed with the driving gear.

[0008] Optionally, the stirring portion includes a spiral blade, and the spiral blade includes a plurality of blade portions, and the plurality of blade portions are arranged on the outer circumference of the rotating shaft and are sequentially spaced apart in the extending direction of the rotating shaft.

[0009] Optionally, the stirring part includes a plurality of blades, the plurality of blades are arranged on the outer periphery of the rotating shaft, the blades are arranged in pairs in a group, the blades in each group are sequentially spaced in the extending direction of the rotating shaft, the distance between the ends of each group of blades away from each other is b, the radial dimension of the tank body is c, and b <c。

[0010] Optionally, a first bearing connecting seat is provided on the side of the tank body facing away from the base, a first bearing is connected to the first bearing connecting seat, and one end of the rotating shaft extending out of the tank body is engaged in the first bearing; a second bearing connecting seat is provided on the inner wall of the side of the tank body adjacent to the base, a second bearing is connected to the second bearing connecting seat, and one end of the rotating shaft facing the base is engaged in the second bearing.

[0011] Optionally, the first bearing connecting seat is an annular structure, and the first bearing is embedded in the first bearing connecting seat; the second bearing connecting seat is an annular structure, and a plurality of connecting rods are arranged between the second bearing connecting seat and the outer ring of the second bearing.

[0012] Optionally, the base includes: an annular plate, a plurality of supporting legs and a plurality of reinforcing rods, wherein the cross-section of the annular plate along the depth direction of the tank body is "L"-shaped, and the tank body is placed on the annular plate; a plurality of supporting legs are evenly arranged on the side of the annular plate away from the tank body; the end of each of the supporting legs is arranged on a foot pad; a plurality of reinforcing rods correspond one-to-one to the plurality of supporting legs, and the reinforcing rods are fixed between the water reducer outlet pipe and one of the supporting legs.

[0013] Optionally, two pairs of baffles are arranged opposite to each other on the outer circumference of the tank body.

[0014] Optionally, an inlet cover is provided at the end of the water reducer inlet pipe; an outlet cover is provided at the end of the water reducer outlet pipe.

[0015] Optionally, the water reducer storage and transportation tank also includes a dust cover, which is buckled on the side of the tank body facing away from the base; a pipe matching hole is provided on the dust cover, and the water reducer inlet pipe extends out of the tank body through the pipe matching hole; a motor seat is provided on the side of the tank body facing away from the base, and the motor is fixed on the motor seat.

[0016] A water reducer storage and transportation tank proposed in an embodiment of the present application has a driving structure arranged on the top of the tank body and a stirring structure arranged in the tank body. When the water reducer is stored in the tank body for a long time and precipitation is generated, the driving structure is started, and the driving structure drives the stirring structure to operate to stir the water reducer to remove the precipitation in the water reducer.

[0017] The water-reducing agent storage and transportation tank proposed in the embodiment of the present application can reduce the impact of the water-reducing agent on the inner wall of the tank body during the transportation of the water-reducing agent in the tank body because the stirring structure is arranged in the tank body, so there will be no safety hazards during the transportation of the water-reducing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a water reducing agent storage and transportation tank provided in an embodiment of the present application;

[0019] Figure 2 for Figure 1 Schematic diagram of the coordination relationship between the middle driving structure and the stirring structure;

[0020] Figure 3 for Figure 2 A schematic structural diagram of another embodiment of the stirring structure involved;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure from another perspective;

[0022] Figure 5 is a schematic diagram of the matching relationship between the second bearing connection seat and the second bearing;

[0023] Figure 6 for Figure 4 A schematic diagram of the structure from another perspective;

[0024] Figure 7 for Figure 1 Schematic diagram of the structure of the water reducer storage and transportation tank covered with a dust cover.

[0025] Among them, 1. base; 101. annular plate; 102. supporting leg; 103. reinforcing rod; 104. foot pad; 2. tank body; 201. water reducer inlet pipe; 202. water reducer outlet pipe; 203. first bearing connecting seat; 204. first bearing; 205. second bearing connecting seat; 206. second bearing; 207. connecting rod; 208. inlet cover; 209. outlet cover; 210. motor seat; 3. driving structure; 301. motor; 302. driving gear; 303. driven gear; 304. rotating shaft; 305. spiral blade; 306. blade; 4. baffle; 5. dust cover; 501. pipeline matching hole.

[0026] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] Please refer to Figure 1A water reducer storage and transportation tank provided in an embodiment of the present application may include a base 1, a tank body 2, a stirring structure and a driving structure 3, wherein the tank body 2 is fixed to one side of the base 1, a water reducer inlet pipe 201 is provided on the side of the tank body 2 away from the base 1, and a water reducer outlet pipe 202 is provided on the side of the tank body 2 facing the base 1; the stirring structure is located in the tank body 2, the stirring structure has a stirring part, the stirring part has an extension length in the depth direction X of the tank body 2, and the stirring structure has a rotational freedom in the circumferential direction of the tank body 2; the driving structure 3 is located on the side of the tank body 2 away from the base 1 and is connected to the stirring structure, and the driving structure 3 provides rotational power for the stirring structure.

[0032] Specifically, when the water reducer storage and transportation tank involved in the present application stores the water reducer, the water reducer is first injected into the tank body 2 from the water reducer inlet pipe 201 for storage. When the water reducer is to be used, the water reducer can be taken out from the water reducer outlet pipe 202. When the water reducer precipitates after being stored in the tank body 2 for a long time, the driving structure 3 can be started, and the driving structure 3 drives the stirring structure to rotate, and the stirring part in the stirring structure stirs the water reducer, so that the water reducer in the tank body 2 is evenly mixed; in the process of transporting the water reducer, the stirring structure can also prevent the water reducer from impacting the inner wall of the tank body 2.

[0033] In this embodiment, a driving structure 3 is provided on the top of the tank body 2 and a stirring structure is provided inside the tank body 2. When the water reducer is stored in the tank body 2 for a long time and precipitation is generated, the driving structure 3 is started. The driving structure 3 drives the stirring structure to operate and stir the water reducer to remove the precipitation in the water reducer.

[0034] The water reducer storage and transportation tank proposed in the embodiment of the present application can reduce the impact of the water reducer on the inner wall of the tank body 2 during the transportation of the water reducer in the tank body 2 because the stirring structure is arranged in the tank body 2, so there will be no safety hazards during the transportation of the water reducer.

[0035] Please refer to Figure 2 The driving structure 3 may include: a motor 301, a driving gear 302, a rotating shaft 304 and a driven gear 303, wherein the motor 301 is fixed to the side of the tank body 2 away from the base 1; the driving gear 302 is arranged at the end of the output shaft of the motor 301; the rotating shaft 304 is arranged in the tank body 2, and the end of the rotating shaft 304 away from the base 1 extends out of the tank body 2 and is rotatably connected to the tank body 2, and the end of the rotating shaft 304 facing the base 1 is located in the tank body 2 and is rotatably connected to the tank body 2; the driven gear 303 is sleeved on the end of the rotating shaft 304 extending out of the tank body 2; the driven gear 303 is meshed with the driving gear 302.

[0036] Specifically, when stirring the water reducer, the motor 301 is started. The output shaft of the motor 301 rotates, thereby driving the driving gear 302 to rotate. The driving gear 302 drives the driven gear 303 meshing with it to rotate. Since the driven gear 303 is sleeved on the protruding end of the rotating shaft 304, when the driven gear 303 rotates, the rotating shaft 304 also rotates together. The rotating shaft 304 rotates, so that the stirring structure also rotates. The rotating stirring structure realizes the stirring of the water reducer in the tank body 2 through the stirring part; when transporting the water reducer, the entire water reducer storage and transportation tank needs to be fixed on a vehicle for transportation. At this time, the motor 301 is in a shutdown state, so the stirring structure arranged on the outer periphery of the rotating shaft 304 will not rotate. The stirring structure is inside the tank body 2 and forms an obstruction to the water reducer in the tank body 2, which can prevent the water reducer from impacting the inner wall of the tank body 2.

[0037] In this embodiment, by arranging the motor 301, the driving gear 302, the rotating shaft 304, and the driven gear 303, when stirring the water reducer in the tank body 2, only the motor 301 needs to be started, and the motor 301 drives the stirring structure. There is no need for an external stirring device, making the stirring process of the water reducer simple in operation and saving manpower; at the same time, when the stirring structure does not work, because it is inside the tank body 2, when transporting the water reducer storage and transportation tank, due to the existence of the stirring structure, the water reducer in the tank body 2 will not impact its inner wall, and the transport vehicle will not roll over, ensuring the safety of the transport vehicle.

[0038] Please refer to Figure 2 , the stirring part may include a spiral blade 305. The spiral blade 305 may include a plurality of blade parts. The plurality of blade parts are arranged on the outer periphery of the rotating shaft 304 and are sequentially spaced apart in the extending direction of the rotating shaft 304.

[0039] In this embodiment, the stirring part is set as a spiral blade, which has a good stirring effect on the water reducer in the tank body 2 and can be used as an anti-impact device to effectively prevent the water reducer from impacting the inner wall of the tank body 2 when transporting the water reducer storage and transportation tank.

[0040] Please refer to Figure 3 , the stirring part may include a plurality of blades 306. The plurality of blades 306 are arranged on the outer periphery of the rotating shaft 304. The blades 306 are arranged in pairs and opposite to each other. Each group of blades 306 is sequentially spaced apart in the extending direction of the rotating shaft 304. The distance between the mutually remote ends of each group of blades 306 is b, and the radial dimension of the tank body 2 is c, and b < c.

[0041] In this embodiment, the plurality of blades 306 all have a certain angle with the horizontal plane, effectively reducing the resistance during the stirring process of the water reducer; b < c is to ensure that the blades 306 do not contact the inner wall of the tank body 2, so that each blade 306 can rotate normally inside the tank body 2.

[0042] Please refer to Figure 4 , Figure 5 A first bearing connecting seat 203 is provided on the side of the tank body 2 facing away from the base 1, and a first bearing 204 is connected to the first bearing connecting seat 203, and one end of the rotating shaft 304 extending out of the tank body 2 is engaged in the first bearing 204; a second bearing connecting seat 205 is provided on the inner wall of the side of the tank body 2 adjacent to the base 1, and a second bearing 206 is connected to the second bearing connecting seat 205, and one end of the rotating shaft 304 facing the base 1 is engaged in the second bearing 206.

[0043] Specifically, the first bearing connecting seat 203 and the tank body 2 are an integral structure, and the first bearing 204 is connected to the first bearing connecting seat 203 by snap-fitting; the second bearing connecting seat 205 and the tank body 2 are an integral structure, and the outer ring of the second bearing 206 is fixed to the second bearing connecting seat 205.

[0044] In this embodiment, the first bearing 204 and the second bearing 206 are used, and the end of the rotating shaft 304 facing away from the base 1 is fitted in the first bearing 204, and the end of the rotating shaft 304 facing the base 1 is fitted in the second bearing 206, so that the rotating shaft 304 can rotate efficiently under the drive of the motor 301.

[0045] Please refer to Figure 4 , Figure 5 The first bearing connection seat 203 can be an annular structure, and the first bearing 204 can be embedded in the first bearing connection seat 203; the second bearing connection seat 205 can be an annular structure, and a plurality of connecting rods 207 are arranged between the second bearing connection seat 205 and the outer ring of the second bearing 206.

[0046] Specifically, the outer ring of the first bearing 204 and the first bearing connecting seat 203 are interference fit; multiple connecting rods 207 are evenly arranged between the second bearing connecting seat 205 and the outer ring of the second bearing 206. As a preferred embodiment, one end of each connecting rod 207 is welded to the second bearing connecting seat 205, and the other end of each connecting rod 207 is welded to the outer ring of the second bearing 206.

[0047] In this embodiment, the first bearing connecting seat 203 is designed as an annular structure to facilitate its engagement with the first bearing 204. The advantage of this arrangement is that it is easy to process and assemble. The second bearing connecting seat 205 is also designed as an annular structure, and the second bearing 206 and the second bearing connecting seat 205 are connected together by multiple connecting rods 207. The purpose of this design is that while ensuring that the rotating shaft 304 can rotate normally, the water reducer in the tank body 2 can flow out from the water reducer outlet pipe 202 along the gap between the second bearing connecting seat 205 and the outer ring of the second bearing 206.

[0048] Please refer to Figure 6 The base 1 may include an annular plate 101, a plurality of supporting legs 102 and a plurality of reinforcing rods 103, wherein the cross section of the annular plate 101 along the depth direction X of the tank body 2 is "L"-shaped, and the tank body 2 is placed on the annular plate 101; the plurality of supporting legs 102 are evenly arranged on the side of the annular plate 101 away from the tank body 2; a foot pad 104 is arranged at the end of each supporting leg 102; the plurality of reinforcing rods 103 correspond to the plurality of supporting legs 102 one by one, and the reinforcing rods 103 are fixed between the water reducer outlet pipe 202 and a supporting leg 102.

[0049] Specifically, each support leg 102 may be a cylindrical structure. In some embodiments, each support leg 102 may also be a cubic structure. Similarly, the reinforcing rod 103 may be a cylindrical structure or a cubic structure.

[0050] In this embodiment, the cross-section of the annular plate 101 is set to be "L"-shaped, which is convenient for fixing the tank body 2 on the annular plate 101; a reinforcing rod 103 is set between each supporting leg 102 and the water reducer outlet pipe 202 to ensure the stability of the base 1 structure so that the tank body 2 set thereon does not shake.

[0051] Please refer to Figure 1 Two pairs of baffles 4 may be arranged on the outer circumference of the tank body 2. Specifically, a certain gap is left between each pair of baffles 4. In this embodiment, by arranging two pairs of baffles 4 on the outer circumference of the tank body 2, it is convenient to carry the water reducing agent storage and transportation tank. For example, a forklift may be used to carry the water reducing agent storage and transportation tank. During the transportation, the forks of the forklift are matched with the two pairs of baffles 4.

[0052] Please refer to Figure 1 An inlet cover 208 is provided at the end of the water reducing agent inlet pipe 201 ; an outlet cover 209 is provided at the end of the water reducing agent outlet pipe 202 .

[0053] Specifically, the inlet cover 208 and the water reducing agent inlet pipe 201 may be connected by threads, and the outlet cover 209 and the water reducing agent outlet pipe 202 may also be connected by threads. In some preferred embodiments, a tap may be provided at the end of the water reducing agent outlet pipe 202.

[0054] In this embodiment, an inlet cover 208 and an outlet cover 209 are provided, which has a simple structure and is easy to implement.

[0055] Please refer to Figure 7 The water reducing agent storage and transportation tank may further include a dust cover 5, which is buckled on the side of the tank body 2 away from the base 1. By arranging the dust cover 5 on the side of the tank body 2 away from the base 1, dust and other impurities are effectively prevented from falling on the driving structure 3, thereby extending the service life of the equipment.

[0056] Please refer to Figure 7 The dust cover 5 is provided with a pipeline matching hole 501, and the water reducing agent inlet pipe 201 passes through the dust cover 5. The advantage of this arrangement is that the water reducing agent can be injected into the tank body 2 without opening the dust cover 5.

[0057] Please refer to Figure 4 A motor seat 210 may be provided on one side of the tank body 2 away from the base 1, and the motor 301 is fixed on the motor seat 210. Specifically, the motor seat 210 may be fixed on the tank body 2 by welding, so that the motor 301 is connected to the motor seat 210 more firmly.

[0058] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A water reducing agent storage and transportation tank, characterized in that: include: Base (1); A tank body (2) is fixed to one side of the base (1); a water reducing agent inlet pipe (201) is provided on the side of the tank body (2) facing away from the base (1); and a water reducing agent outlet pipe (202) is provided on the side of the tank body (2) facing the base (1); a stirring structure, located in the tank body (2), the stirring structure having a stirring portion, the stirring portion having an extended length in the depth direction of the tank body (2), and the stirring structure having a degree of freedom of rotation in the circumferential direction of the tank body (2); A driving structure (3) is located on a side of the tank body (2) away from the base (1) and is connected to the stirring structure, wherein the driving structure (3) provides rotational power for the stirring structure; The driving structure (3) comprises: A motor (301) is fixed to a side of the tank body (2) facing away from the base (1); A driving gear (302) is arranged at the end of the output shaft of the motor (301); A rotating shaft (304) is arranged in the tank body (2); one end of the rotating shaft (304) facing away from the base (1) extends out of the tank body (2) and is rotatably connected to the tank body (2); and one end of the rotating shaft (304) facing the base (1) is located in the tank body (2) and is rotatably connected to the tank body (2); A driven gear (303) is sleeved on one end of the rotating shaft (304) extending out of the tank body (2), and the driven gear (303) is meshed with the driving gear (302); The stirring part comprises: The spiral blade (305) includes a plurality of blade portions, and the plurality of blade portions are arranged on the outer periphery of the rotating shaft (304) and are arranged in sequence and spaced apart in the extending direction of the rotating shaft (304).

2. The water reducing agent storage and transportation tank according to claim 1, characterized in that: The stirring part comprises: A plurality of blades (306) are arranged on the outer periphery of the rotating shaft (304), the blades (306) are arranged in pairs in a group, and the blades (306) of each group are sequentially spaced in the extending direction of the rotating shaft (304). The distance between the ends of each group of blades (306) away from each other is b, the radial dimension of the tank body (2) is c, and b <c。 3. The water reducing agent storage and transportation tank according to claim 1, characterized in that: A first bearing connection seat (203) is provided on a side of the tank body (2) facing away from the base (1), a first bearing (204) is connected to the first bearing connection seat (203), and one end of the rotating shaft (304) extending out of the tank body (2) is fitted in the first bearing (204); A second bearing connection seat (205) is provided on the inner wall of the tank body (2) on the side adjacent to the base (1), a second bearing (206) is connected to the second bearing connection seat (205), and one end of the rotating shaft (304) facing the base (1) is fitted in the second bearing (206).

4. The water reducing agent storage and transportation tank according to claim 3, characterized in that: The first bearing connection seat (203) is an annular structure, and the first bearing (204) is embedded in the first bearing connection seat (203); The second bearing connection seat (205) is an annular structure, and a plurality of connection rods (207) are arranged at intervals between the second bearing connection seat (205) and the outer ring of the second bearing (206).

5. The water reducing agent storage and transportation tank according to claim 1, characterized in that: The base (1) comprises: An annular plate (101) having an L-shaped cross section along the depth direction of the tank body (2), and the tank body (2) is placed on the annular plate (101); A plurality of support legs (102) are evenly arranged on a side of the annular plate (101) away from the tank body (2), and a foot pad (104) is arranged at the end of each support leg (102); A plurality of reinforcing rods (103) correspond one-to-one to the plurality of supporting legs (102), and the reinforcing rods (103) are fixed between the water reducing agent outlet pipe (202) and one of the supporting legs (102).

6. The water reducing agent storage and transportation tank according to claim 1, characterized in that: Two pairs of baffles (4) are arranged opposite to each other on the outer periphery of the tank body (2).

7. The water reducing agent storage and transportation tank according to claim 1, characterized in that: An inlet cover (208) is provided at the end of the water reducing agent inlet pipe (201); and an outlet cover (209) is provided at the end of the water reducing agent outlet pipe (202).

8. The water reducing agent storage and transportation tank according to claim 1, characterized in that: The water reducing agent storage and transportation tank also includes: A dust cover (5) is buckled on a side of the tank body (2) facing away from the base (1); The dust cover (5) is provided with a pipeline matching hole (501), and the water reducing agent inlet pipe (201) extends out of the tank body (2) through the pipeline matching hole (501); A motor seat (210) is provided on a side of the tank body (2) facing away from the base (1), and the motor (301) is fixed on the motor seat (210).

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