Adblue solution production sampling device

Abstract

The utility model relates to the technical field of urea solution production, and discloses an automotive urea solution production sampling device which comprises a sampling barrel and a piston, the piston is in sliding connection with the inner wall of the sampling barrel, and a reciprocating sampling mechanism is arranged between the piston and the sampling barrel; the reciprocating sampling mechanism comprises a rotating shaft and a connecting cylinder, the rotating shaft penetrates through the top end of the sampling cylinder, the outer wall of the rotating shaft is rotatably connected with the sampling cylinder through a bearing I, a reciprocating screw rod is fixedly mounted at the bottom end of the rotating shaft, and the connecting cylinder is fixedly mounted at the top end of the piston. According to the urea sampling device, urea in a urea tank can be continuously sampled, the sampling efficiency is improved, and the problems that an existing urea sampling device needs personnel to frequently pull a handle up and down to sample the urea in the urea tank, so that the personnel is very labor-consuming due to frequent pulling, and the sampling efficiency and the sampling detection efficiency are influenced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of urea solution production, in particular to a vehicle urea solution production sampling device. Background Art

[0002] Automotive urea solution is an essential product for heavy-duty diesel vehicles to meet the National IV emission standards, and has certain requirements for concentration and purity; with the upgrade of emission standards, more and more vehicles need to be equipped with SCR after-treatment systems, and urea tanks must be installed to store urea solution. The relevant emission standards have certain standards for the quality of urea solution. In order to verify whether the urea solution meets the standard requirements, it is necessary to frequently extract urea solution samples from the urea tank. The current urea tank does not have a dedicated sampling port. When sampling is required, it is mostly sampled from the discharge port. However, the discharge port is located in a small space, and the sampling process is difficult to control. The urea solution is easy to spill or even splash onto the body;

[0003] According to the Chinese patent announcement number CN215065531U, a urea aqueous solution rapid sampling device is disclosed, which extracts urea aqueous solution from a urea tank by using a sampling device during sampling; an anti-backflow structure is arranged inside the sampling device to prevent liquid backflow during the extraction and discharge of the urea aqueous solution; the sampling device is equipped with a long hose, sampling is not limited by space, and sampling can be performed while standing;

[0004] This technical solution requires personnel to frequently pull the handle up and down to sample the urea in the urea tank, which makes the personnel very laborious, thus affecting the sampling efficiency and the sampling detection efficiency. Therefore, we propose a vehicle urea solution production sampling device. Utility Model Content

[0005] The utility model aims to provide a vehicle urea solution production sampling device, which solves the problems in the background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a vehicle urea solution production sampling device, comprising a sampling cylinder and a piston, wherein the piston is slidably connected to the inner wall of the sampling cylinder, and a reciprocating sampling mechanism is provided between the piston and the sampling cylinder;

[0007] The reciprocating sampling mechanism includes a rotating shaft and a connecting cylinder. The rotating shaft passes through the top of the sampling cylinder, and the outer wall of the rotating shaft is rotatably connected to the sampling cylinder through a bearing 1. A reciprocating screw is fixedly installed at the bottom end of the rotating shaft, and the connecting cylinder is fixedly installed at the top of the piston. A fixed block is fixedly installed on the inner wall of the connecting cylinder, and the fixed block is threadedly sleeved on the outer wall of the reciprocating screw. An L-shaped rod is fixedly installed on the outer wall of the connecting cylinder. A rod hole 2 is opened at the top of the sampling cylinder, and the L-shaped rod movably passes through the top of the sampling cylinder through the rod hole 2. A sample suction tube is connected at the bottom end of the connecting cylinder, and a one-way valve 1 is fixedly installed in the sample suction tube pipeline. A sample outlet tube is connected to one side of the sampling cylinder near the bottom, and a one-way valve 2 is fixedly installed in the sample outlet tube pipeline. A hose is connected to the sample outlet tube and the sample suction tube.

[0008] Preferably, the number of the L-shaped rod and the rod hole 2 are both two, and the L-shaped rod is adapted to the rod hole 2. By setting the L-shaped rod, the connecting tube can be limited to prevent the connecting tube from rotating with the reciprocating screw rod, thereby ensuring the normal up and down movement of the connecting tube.

[0009] Preferably, a rotating frame is fixedly mounted on the top of the rotating shaft. By providing the rotating frame, it is convenient for personnel to rotate the rotating shaft through the rotating frame, thereby facilitating personnel operation.

[0010] Preferably, a handle is fixedly installed on one side of the sampling tube near the top. By providing the handle, it is convenient for personnel to take the sampling tube through the handle, which facilitates personnel operation.

[0011] Preferably, a fixing frame is fixedly installed on the other side of the sampling tube, a splint is arranged inside the fixing frame, a screw is rotatably connected to the back side of the splint through bearing 2, the screw is threadedly connected to a screw hole opened on the back side of the fixing frame, a rotating plate is fixedly installed on one end of the screw, a limiting rod is fixedly installed on the back side of the splint, a rod hole 1 is opened on the back side of the fixing frame, and the limiting rod movably passes through the rod hole 1 and penetrates the back side of the fixing frame.

[0012] Preferably, there are two limit rods and rod hole one, and the limit rod is adapted to the rod hole one. The front side of the splint is provided with tooth grooves, and the number of the tooth grooves is several. By providing the tooth grooves, the friction between the splint and the fixed position can be increased, thereby improving the stability of the fixation.

[0013] The utility model provides a vehicle urea solution production sampling device. The vehicle urea solution production sampling device has the following beneficial effects:

[0014] (1) The vehicle urea solution production sampling device can continuously sample urea in the urea tank by setting a reciprocating sampling mechanism, thereby improving the sampling efficiency. This solves the problem that the existing urea sampling device requires personnel to frequently pull up and down the handle to sample urea in the urea tank, which makes the personnel very laborious, thereby affecting the sampling efficiency and the sampling detection efficiency;

[0015] (2) The vehicle-use urea solution production sampling device can clamp the clamp at a fixed position through the cooperation of the fixing frame, clamping plate, screw rod, rotating plate, limiting rod, rod hole and tooth groove, so as to fix the sampling tube, which is convenient for personnel to operate, saves manpower, has a simple structure and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a front sectional structural schematic diagram of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 4 For this utility model Figure 2 The enlarged structural diagram of the middle B part;

[0020] Figure 5 It is a schematic diagram of the side sectional structure of the fixing frame of the utility model.

[0021] In the figure: 1. sampling tube; 2. piston; 3. reciprocating sampling mechanism; 4. hose; 5. handle; 6. fixed frame; 7. clamping plate; 8. screw; 9. rotating plate; 10. limit rod; 11. rod hole one; 12. tooth groove; 301. rotating shaft; 302. rotating frame; 303. reciprocating screw rod; 304. connecting tube; 305. fixing block; 306. L-shaped rod; 307. rod hole two; 308. sample suction tube; 309. sample outlet tube; 310. one-way valve one; 311. one-way valve two. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1:

[0026] The vehicle urea solution production sampling device provided by the utility model is preferably implemented as follows: Figures 1 to 5 As shown: a vehicle urea solution production sampling device, comprising a sampling cylinder 1, a piston 2, the piston 2 is slidably connected to the inner wall of the sampling cylinder 1, and a reciprocating sampling mechanism 3 is arranged between the piston 2 and the sampling cylinder 1;

[0027] The reciprocating sampling mechanism 3 includes a rotating shaft 301 and a connecting tube 304. The rotating shaft 301 passes through the top of the sampling tube 1, and the outer wall of the rotating shaft 301 is rotatably connected to the sampling tube 1 through a bearing 1. A reciprocating screw rod 303 is fixedly installed at the bottom of the rotating shaft 301, and the connecting tube 304 is fixedly installed at the top of the piston 2. A fixed block 305 is fixedly installed on the inner wall of the connecting tube 304. The fixed block 305 is threadedly sleeved on the outer wall of the reciprocating screw rod 303. An L-shaped rod is fixedly installed on the outer wall of the connecting tube 304. 306, a rod hole 2 307 is provided at the top of the sampling tube 1, and the L-shaped rod 306 movably passes through the top of the sampling tube 1 through the rod hole 2 307, and a sample suction tube 308 is provided at the bottom of the connecting tube 304, and a one-way valve 1 310 is fixedly installed in the pipeline of the sample suction tube 308, and a sample outlet tube 309 is provided on one side of the sampling tube near the bottom, and a one-way valve 2 311 is fixedly installed in the pipeline of the sample outlet tube 309, and a hose 4 is provided to connect the sample outlet tube 309 and the sample suction tube 308.

[0028] Specifically, the rotating frame 302 is rotated, the rotating frame 302 drives the rotating shaft 301 to rotate, the rotating shaft 301 drives the reciprocating screw rod 303 to rotate, the reciprocating screw rod 303 drives the fixed block 305 to move up and down, the fixed block 305 drives the connecting cylinder 304 to move up and down, the connecting cylinder 304 drives the piston 2 to move up and down, when the piston 2 moves upward, the one-way valve 2 311 is closed, the one-way valve 1 310 is opened, and the sample suction tube 308 sucks the vehicle urea in the urea tank through the hose 4 connected thereto. The urea is sucked into the sampling cylinder 1, and when the piston 2 moves downward, the one-way valve 2 311 is opened and the one-way valve 1 310 is closed, so that the urea in the sampling cylinder 1 is discharged through the sample outlet pipe 309 and the hose 4 connected thereto, so that the urea in the urea tank can be sampled continuously, and the sampling efficiency is improved, which solves the problem that the existing urea sampling device requires personnel to frequently pull the handle up and down to sample the urea in the urea tank, resulting in frequent pulling and causing great effort on the part of personnel, thereby affecting the sampling efficiency and the sampling detection efficiency.

[0029] Furthermore, the number of the L-shaped rod 306 and the second rod hole 307 are both two, and the L-shaped rod 306 and the second rod hole 307 are adapted to each other;

[0030] Among them, by setting the L-shaped rod 306, the connecting tube 304 can be limited to prevent the connecting tube 304 from rotating following the reciprocating screw rod 303, thereby ensuring the normal up and down movement of the connecting tube 304.

[0031] Furthermore, a rotating frame 302 is fixedly mounted on the top of the rotating shaft 301;

[0032] The rotating frame 302 is provided to facilitate personnel to rotate the rotating shaft 301 through the rotating frame 302 , thereby facilitating personnel operation.

[0033] Furthermore, a handle 5 is fixedly installed on one side of the sampling tube 1 near the top;

[0034] The handle 5 is provided to facilitate personnel to take the sampling tube 1 through the handle 5 , thereby facilitating personnel operation.

[0035] Embodiment 2:

[0036] On the basis of the first embodiment, the vehicle urea solution production sampling device provided by the utility model is preferably implemented as follows Figures 1 to 5 As shown: a fixing frame 6 is fixedly installed on the other side of the sampling tube 1, a clamping plate 7 is arranged inside the fixing frame 6, a screw rod 8 is rotatably connected to the back of the clamping plate 7 through a second bearing, the screw 8 is threadedly connected to the screw hole opened on the back of the fixing frame 6, a rotating plate 9 is fixedly installed on one end of the screw 8, a limiting rod 10 is fixedly installed on the back of the clamping plate 7, a rod hole 11 is opened on the back of the fixing frame 6, and the limiting rod 10 movably passes through the rod hole 11 and penetrates the back of the fixing frame 6.

[0037] Specifically, in the above technical solution, when the sampling device is in use, the fixed frame 6 can be stuck into a fixed position, and the rotating plate 9 can be rotated. The rotating plate 9 drives the screw 8 to rotate, and the screw 8 drives the clamping plate 7 to move to the fixed position, so that the clamping plate 7 is clamped at the fixed position, so that the sampling tube 1 can be fixed, which is convenient for personnel to operate, saves manpower, has a simple structure, and is highly practical.

[0038] Furthermore, the number of the limiting rod 10 and the rod hole 11 is two, and the limiting rod 10 is adapted to the rod hole 11, and the front surface of the clamping plate 7 is provided with a tooth groove 12, and the number of the tooth groove 12 is several;

[0039] Among them, by providing the tooth groove 12, the friction between the clamping plate 7 and the fixing position can be increased, thereby improving the stability of the fixing.

[0040] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A vehicle urea solution production sampling device, comprising a sampling cylinder (1), a piston (2), Features: The piston (2) is slidably connected to the inner wall of the sampling cylinder (1), and a reciprocating sampling mechanism (3) is provided between the piston (2) and the sampling cylinder (1); The reciprocating sampling mechanism (3) comprises a rotating shaft (301) and a connecting tube (304); the rotating shaft (301) passes through the top of the sampling tube (1); and the outer wall of the rotating shaft (301) is rotatably connected to the sampling tube (1) via a bearing 1; a reciprocating screw rod (303) is fixedly mounted on the bottom end of the rotating shaft (301); the connecting tube (304) is fixedly mounted on the top of the piston (2); a fixing block (305) is fixedly mounted on the inner wall of the connecting tube (304); the fixing block (305) is threadedly sleeved on the outer wall of the reciprocating screw rod (303); and an L-shaped The sampling tube (1) is provided with a second rod hole (307) at the top end thereof, and the L-shaped rod (306) is movably inserted through the top end of the sampling tube (1) through the second rod hole (307). The bottom end of the connecting tube (304) is connected with a sample suction tube (308), and a first check valve (310) is fixedly installed in the pipeline of the sample suction tube (308). A sample outlet tube (309) is connected to one side of the sampling tube near the bottom end thereof, and a second check valve (311) is fixedly installed in the pipeline of the sample outlet tube (309). The sample outlet tube (309) and the sample suction tube (308) are both connected with a hose (4).

2. A vehicle urea solution production sampling device according to claim 1, Features: The number of the L-shaped rod (306) and the second rod hole (307) is two, and the L-shaped rod (306) is matched with the second rod hole (307).

3. The vehicle urea solution production sampling device according to claim 1, Features: A rotating frame (302) is fixedly mounted on the top of the rotating shaft (301).

4. The vehicle urea solution production sampling device according to claim 1, Features: A handle (5) is fixedly mounted on one side of the sampling tube (1) near the top.

5. The vehicle urea solution production sampling device according to claim 1, Features: A fixing frame (6) is fixedly mounted on the other side of the sampling tube (1), a clamping plate (7) is arranged inside the fixing frame (6), a screw rod (8) is rotatably connected to the back of the clamping plate (7) via a second bearing, the screw rod (8) is threadedly connected to a screw hole provided on the back of the fixing frame (6), a rotating plate (9) is fixedly mounted on one end of the screw rod (8), a limiting rod (10) is fixedly mounted on the back of the clamping plate (7), a rod hole (11) is provided on the back of the fixing frame (6), and the limiting rod (10) movably passes through the rod hole (11) and penetrates the back of the fixing frame (6).

6. A vehicle urea solution production sampling device according to claim 5, Features: The number of the limiting rods (10) and the rod holes (11) is two, and the limiting rods (10) are adapted to the rod holes (11). The front side of the clamping plate (7) is provided with tooth grooves (12), and the number of the tooth grooves (12) is several.

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