Coating quality detection equipment

Abstract

The utility model relates to coating quality detection equipment which comprises a machine body, a mounting plate, a lifting seat, a test plate, a liquid storage funnel, a collection box, a lifting driving mechanism and a control panel, the lifting seat is mounted on the machine body in an up-down moving manner; one end of the mounting plate is a lifting end, the other end of the mounting plate is a sliding end, the lifting end of the mounting plate is rotatably mounted on the lifting seat, the sliding end of the mounting plate is slidably mounted on the machine body, and the sliding direction of the sliding end of the mounting plate is arranged in the horizontal direction; the lifting driving mechanism is mounted on the machine body and is used for driving the lifting seat to move up and down; the test plate is detachably mounted on the top surface of the mounting plate; the liquid storage funnel is installed on the lifting seat, a liquid outlet of the liquid storage funnel is located above the test plate, and an electromagnetic valve is installed on the liquid outlet of the liquid storage funnel; the collecting box is placed on the machine body and located below the sliding end of the mounting plate. And the control panel is electrically connected with the electromagnetic valve and the lifting driving mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of coating detection equipment, in particular to a coating quality detection equipment. Background Technique

[0002] Quality inspection is a very important link in the coating production process. At present, some coating quality inspection equipment appears on the market. For example, a Chinese utility model patent with the publication number CN218067541U and the patent name of "Water-based Coating Fluidity Detection Device". This patent discharges the liquid in the liquid filling hopper and measures the time required to empty a specific volume of coating in the liquid filling hopper, so as to calculate the fluidity parameter of the coating. However, such a detection method has a single detection means and cannot comprehensively detect the coating, affecting its detection accuracy. Content of the Utility Model

[0003] The purpose of the utility model is to provide a coating quality detection equipment, which has the advantages of various detection means, comprehensive detection and high detection accuracy.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a coating quality detection equipment, including a machine body, a mounting plate, a lifting seat, a test plate, a liquid storage funnel, a collection box, a lifting drive mechanism and a control panel; the lifting seat is installed on the machine body so as to be movable up and down; one end of the mounting plate is a lifting end, and the other end of the mounting plate is a sliding end. The lifting end of the mounting plate is rotatably installed on the lifting seat, and the sliding end of the mounting plate is slidably installed on the machine body. The sliding direction of the sliding end of the mounting plate is set along the horizontal direction; the lifting drive mechanism is installed on the machine body, and the lifting drive mechanism is used to drive the lifting seat to move up and down; the test plate is detachably installed on the top surface of the mounting plate; the liquid storage funnel is installed on the lifting seat, the liquid outlet of the liquid storage funnel is above the test plate, and an electromagnetic valve is installed on the liquid outlet of the liquid storage funnel; the collection box is placed on the machine body and is below the sliding end of the mounting plate; the control panel is electrically connected to the electromagnetic valve and the lifting drive mechanism, and the control panel is used to control the electromagnetic valve and the lifting drive mechanism to work.

[0005] The working principle of the utility model:

[0006] During use, inject the coating into the liquid storage funnel for storage and record the pre-test volume data of the injected coating. Control the lifting drive mechanism to work through the control panel to drive the lifting seat to move up and down, thereby adjusting the inclination angle of the test plate on the mounting plate relative to the horizontal plane. Then, open the solenoid valve through the control panel and start timing the time data one. The coating in the liquid storage funnel drops onto the test plate and flows along the test plate until it falls into the collection box for collection and storage. Start timing the time data two when the coating begins to fall into the collection box; stop timing the time data one after the coating in the liquid storage funnel is emptied, and stop timing the time data two after all the coating has fallen into the collection box. Measure the volume of the coating in the collection box to obtain the post-test volume data; based on the pre-test volume data of the coating and the time data one, the fluidity parameter one of the coating during liquid discharge can be calculated. Based on the pre-test volume data, post-test volume data, and time data two of the coating, the fluidity parameter two of the coating when flowing on the test plate can be calculated. Combining the fluidity parameter one and the fluidity parameter two can more comprehensively detect the fluidity of the coating and improve the detection accuracy; in addition, multiple tests can be carried out by adjusting the inclination angle of the test plate to obtain the fluidity data of the coating at different inclination angles, and the fluidity data of the coating on different materials can also be detected by changing the test plates of different materials, so as to more comprehensively detect the fluidity of the coating; replace the new test plate after each test to avoid affecting subsequent tests.

[0007] Further, for a coating quality detection device as described above, the lifting drive mechanism includes 2 lifting slide rails, 2 lifting screws, and 2 lifting motors; one lifting slide rail corresponds to one lifting screw and one lifting motor. The lifting slide rail is installed on the machine body, and the length direction of the lifting slide rail is set in the up and down direction. The two ends of the lifting screw are respectively rotatably installed at the two ends of the lifting slide rail. The lifting motor is installed on the machine body and is electrically connected to the control panel. The lifting motor is used to drive the lifting screw to rotate; the lifting seat is located between the 2 lifting slide rails. The two sides of the lifting seat are respectively slidably connected to the 2 lifting slide rails, and the two sides of the lifting seat are respectively threadedly connected to the 2 lifting screws, so that the 2 lifting screws can drive the lifting seat to move up and down along the lifting slide rail by synchronous rotation.

[0008] Further, for a coating quality detection device as described above, the lifting seat includes 2 sliders and a support frame; one slider corresponds to one lifting slide rail and one lifting screw. The slider is slidably installed on the lifting slide rail and is threadedly connected to the lifting screw. The two lifting ends of the mounting plate are respectively rotatably installed on the 2 sliders; the 2 sliders are connected by a support frame, and the liquid storage funnel is detachably fixed on the support frame.

[0009] Furthermore, for a paint quality detection device as described above, two baffles are also installed on the top surface of the mounting plate. The two baffles are arranged side by side along the width direction of the mounting plate, and the length direction of each baffle is along the length direction of the mounting plate. The test plate is located between the two baffles.

[0010] Furthermore, for a paint quality detection device as described above, it further includes two sliding seats, a brush roller, a brush motor, a sliding driving mechanism, and a water spraying mechanism. The two sliding seats are respectively slidably installed on the two baffles, and the sliding direction of each sliding seat is set along the length direction of the mounting plate. The two ends of the brush roller are respectively rotatably installed on the two sliding seats, and the rotation axis of the brush roller is set along the width direction of the mounting plate. The brush motor is installed on one of the sliding seats and is used to drive the brush roller to rotate. The sliding driving mechanism is installed on the mounting plate and is used to drive the sliding seat to slide. The water spraying mechanism is used to spray water on the surface of the test plate. The brush motor, the sliding driving mechanism, and the water spraying mechanism are electrically connected to the control panel.

[0011] Furthermore, for a paint quality detection device as described above, the sliding driving mechanism includes two driving motors and two transmission screws. One sliding seat corresponds to one driving motor and one transmission screw. The two ends of the transmission screw are respectively rotatably installed on the mounting plate, and the rotation axis of the transmission screw is set along the length direction of the mounting plate. The sliding seat is threadedly connected to the transmission screw. The driving motor is installed on the mounting plate and is used to drive the transmission screw to rotate, so that the sliding seat can be driven by the transmission screw to slide along the baffle.

[0012] Furthermore, for a paint quality detection device as described above, a first stop block, a guide rail, and a second stop block are sequentially arranged on each baffle along its length direction. The sliding seat is slidably installed on the guide rail, and the first stop block and the second stop block are used to limit the movable range of the sliding seat.

[0013] Furthermore, for a paint quality detection device as described above, a positioning rib is formed on the mounting plate, and the two ends of the positioning rib are respectively connected to the two baffles. A positioning groove is formed on the bottom surface of the test plate, and the positioning groove of the test plate is detachably clamped on the positioning rib for fixation.

[0014] Furthermore, for a paint quality detection device as described above, a positioning boss is formed on the mounting plate. The positioning boss is located between the two baffles and is arranged close to the lifting end of the mounting plate. The positioning rib is provided with a sliding end close to the lifting end of the mounting plate. One side edge of the test plate is fitted and positioned with the positioning boss.

[0015] Furthermore, as for a coating quality detection device as described above, a receiving cavity is formed on the top surface of the body. One side of the receiving cavity communicates with one side elevation of the body, and the collection box is placed in the receiving cavity and is arranged in contact with the other cavity wall of the receiving cavity. A positioning member is further included, and the positioning member is detachably installed on the inner wall of the receiving cavity, so that the collection box is clamped between the positioning member and the wall surface of the receiving cavity for positioning.

[0016] Implementing the technical solution of the present invention has the following beneficial effects: It has the advantages of diverse detection means, comprehensive detection, and high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the top view of the embodiment;

[0018] Figure 2 is the right view of the embodiment;

[0019] Figure 3 is Figure 2 the sectional structure diagram in the A-A direction of

[0020] Figure 4 is Figure 3 the structural schematic diagram after adjusting the inclination angle;

[0021] Description of the reference numerals:

[0022] 1 - body; 11 - slideway; 12 - receiving cavity; 13 - positioning member; 2 - mounting plate; 21 - baffle; 22 - guide rail; 23 - first stop block; 24 - second stop block; 25 - positioning rib; 26 - positioning boss; 3 - lifting seat; 31 - slider; 32 - support frame; 4 - test plate; 5 - liquid storage funnel; 51 - solenoid valve; 6 - collection box; 7 - lifting drive mechanism; 71 - lifting slide rail; 72 - lifting screw; 73 - lifting motor; 74 - connecting plate; 8 - sliding seat; 9 - brush roller; 10 - brush motor; 20 - sliding drive mechanism; 201 - drive motor; 202 - transmission screw; 30 - spray head; 40 - control panel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to have a clearer understanding of the technical features, objectives, and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] As Figures 1 to 4It is a coating quality detection device, including a machine body 1, a mounting plate 2, a lifting seat 3, a test plate 4, a liquid storage funnel 5, a collection box 6, a lifting drive mechanism 7 and a control panel 40; the lifting seat 3 is installed on the machine body 1 so as to be movable up and down; one end of the mounting plate 2 is a lifting end, and the other end of the mounting plate 2 is a sliding end. The lifting end of the mounting plate 2 is rotatably installed on the lifting seat 3, and the sliding end of the mounting plate 2 is slidably installed on the machine body 1. The sliding direction of the sliding end of the mounting plate 2 is set along the horizontal direction; the lifting drive mechanism 7 is installed on the machine body 1, and the lifting drive mechanism 7 is used to drive the lifting seat 3 to move up and down; the test plate 4 is detachably installed on the top surface of the mounting plate 2; the liquid storage funnel 5 is installed on the lifting seat 3, and the liquid outlet of the liquid storage funnel 5 is above the test plate 4. A solenoid valve 51 is installed on the liquid outlet of the liquid storage funnel 5; the collection box 6 is placed on the machine body 1 and is below the sliding end of the mounting plate 2; the control panel 40 is electrically connected to the solenoid valve 51 and the lifting drive mechanism 7, and the control panel 40 is used to control the solenoid valve 51 and the lifting drive mechanism 7 to work. In this embodiment, two slideways 11 are formed on the machine body 1, and the two slideways 11 are respectively on both sides of the mounting plate 2. The two sides of the sliding end of the mounting plate 2 are respectively slidably installed in the two slideways 11; the liquid storage funnel 5 is made of a transparent material, and a volume scale is provided on the side wall of the liquid storage funnel 5 to facilitate measuring the volume data of the coating in the liquid storage funnel 5 before the test.

[0025] The working principle of this embodiment:

[0026] During use, the coating is injected into the liquid storage funnel 5 for storage, and the pre-test volume data of the injected coating is recorded. The lifting drive mechanism 7 is controlled by the control panel 40 to drive the lifting seat 3 to move up and down, thereby adjusting the inclination angle of the test plate 4 on the mounting plate 2 relative to the horizontal plane. Then, the solenoid valve 51 is opened through the control panel 40 and the timing of the time data one starts. The coating in the liquid storage funnel 5 drops onto the test plate 4 and flows along the test plate 4 until it falls into the collection box 6 for collection and storage. When the coating starts to fall into the collection box 6, the timing of the time data two starts; when the coating in the liquid storage funnel 5 is emptied, the timing of the time data one stops, and when all the coating has fallen into the collection box 6, the timing of the time data two stops. The volume of the coating in the collection box 6 is measured to obtain the post-test volume data; according to the pre-test volume data of the coating and the time data one, the fluidity parameter one of the coating during liquid discharge can be calculated. According to the pre-test volume data, post-test volume data, and time data two of the coating, the fluidity parameter two of the coating when flowing on the test plate 4 can be calculated. Combining the fluidity parameter one and the fluidity parameter two can more comprehensively detect the fluidity of the coating and improve the detection accuracy; in addition, multiple tests can be carried out by adjusting the inclination angle of the test plate 4 to obtain the fluidity data of the coating at different inclination angles, and the fluidity data of the coating on different materials can also be detected by changing the test plate 4 of different materials, so as to more comprehensively detect the fluidity of the coating; after each test, a new test plate 4 is replaced to avoid affecting subsequent tests.

[0027] As Figures 1 to 4 shown, the lifting drive mechanism 7 includes two lifting slide rails 71, two lifting screw rods 72, and two lifting motors 73; one lifting slide rail 71 corresponds to one lifting screw rod 72 and one lifting motor 73. The lifting slide rail 71 is installed on the machine body 1, and the length direction of the lifting slide rail 71 is set along the up and down direction. The two ends of the lifting screw rod 72 are respectively rotatably installed at the two ends of the lifting slide rail 71. The lifting motor 73 is installed on the machine body 1, and the lifting motor 73 is electrically connected to the control panel 40. The lifting motor 73 is used to drive the lifting screw rod 72 to rotate; the lifting seat 3 is located between the two lifting slide rails 71. The two sides of the lifting seat 3 are respectively slidably connected to the two lifting slide rails 71, and the two sides of the lifting seat 3 are respectively threadedly connected to the two lifting screw rods 72, so that the two lifting screw rods 72 can drive the lifting seat 3 to move up and down along the lifting slide rail 71 by synchronous rotation. In this embodiment, the tops of the two lifting slide rails 71 are connected by a connecting plate 74 to strengthen the connection structure between the two lifting slide rails 71. Through the above structure, the up and down movement operation of the lifting seat 3 can be made more convenient.

[0028] As Figures 1 to 4As shown in the figure, the lifting seat 3 includes two sliders 31 and a support frame 32; one slider 31 corresponds to a lifting slide rail 71 and a lifting screw rod 72. The slider 31 is slidably mounted on the lifting slide rail 71 and is threadedly connected to the lifting screw rod 72. The two lifting ends of the mounting plate 2 are respectively rotatably mounted on the two sliders 31; the two sliders 31 are connected by the support frame 32, and the liquid storage funnel 5 is detachably fixed on the support frame 32. With such a structure, the installation and disassembly of the liquid storage funnel 5 can be made more convenient, so as to facilitate the injection of the coating into the liquid storage funnel 5.

[0029] As Figures 1 to 4 shown in the figure, two baffles 21 are further mounted on the top surface of the mounting plate 2. The two baffles 21 are arranged side by side along the width direction of the mounting plate 2, and the length direction of each baffle 21 is along the length direction of the mounting plate 2. The test plate 4 is located between the two baffles 21. With such a structure, it is possible to prevent the coating from flowing out of the test plate 4 from both sides when flowing downward along the test plate 4, so that the size of the test plate 4 can be reduced, and the occupied space of this equipment can be reduced.

[0030] As Figures 1 to 4As shown, this embodiment further includes two sliding seats 8, a brush roller 9, a brush motor 10, a sliding drive mechanism 20, and a water spraying mechanism; the two sliding seats 8 are respectively slidably mounted on two baffles 21, and the sliding direction of each sliding seat 8 is set along the length direction of the mounting plate 2; both ends of the brush roller 9 are rotatably mounted on the two sliding seats 8 respectively, and the rotation axis of the brush roller 9 is set along the width direction of the mounting plate 2; the brush motor 10 is mounted on one of the sliding seats 8, and the brush motor 10 is used to drive the brush roller 9 to rotate; the sliding drive mechanism 20 is mounted on the mounting plate 2, and the sliding drive mechanism 20 is used to drive the sliding seat 8 to slide; the water spraying mechanism is used to spray water on the surface of the test plate 4; the brush motor 10, the sliding drive mechanism 20, and the water spraying mechanism are electrically connected to the control panel 40. The sliding drive mechanism 20 includes two drive motors 201 and two transmission screws 202; one sliding seat 8 corresponds to one drive motor 201 and one transmission screw 202, both ends of the transmission screw 202 are rotatably mounted on the mounting plate 2 respectively, the rotation axis of the transmission screw 202 is set along the length direction of the mounting plate 2, the sliding seat 8 is threadedly connected to the transmission screw 202, the drive motor 201 is mounted on the mounting plate 2, and the drive motor 201 is used to drive the transmission screw 202 to rotate, so that the sliding seat 8 can be driven by the transmission screw 202 to slide along the baffle 21. Along the length direction of each baffle 21, a first stop block 23, a guide rail 22, and a second stop block 24 are sequentially provided, the sliding seat 8 is slidably mounted on the guide rail 22, and the first stop block 23 and the second stop block 24 are used to limit the movable range of the sliding seat 8. In this embodiment, the water spraying mechanism includes a plurality of nozzles 30 provided on the support frame 32, and each nozzle 30 is arranged to spray water towards the test plate 4. During use, after all the paint is collected into the collection box 6, the paint remaining on the test plate 4 is evenly brushed manually. After the paint on the test plate 4 dries, the control panel 40 is used to control the water spraying mechanism to spray and wash the test plate 4, the brush motor 10 works to drive the brush roller 9 to rotate, and the sliding drive mechanism 20 drives the sliding seat 8 to reciprocate along the baffle 21, so that the brush roller 9 reciprocates along the test plate 4 to wash the paint, thereby testing the washability of the paint.

[0031] As Figure 3 and Figure 4As shown, a positioning rib 25 is formed on the mounting plate 2, and two ends of the positioning rib 25 are respectively connected to two baffles 21; a positioning groove is formed on the bottom surface of the test plate 4, and the positioning groove of the test plate 4 is detachably clamped on the positioning rib 25 for fixation. A positioning boss 26 is formed on the mounting plate 2, the positioning boss 26 is located between the two baffles 21, the positioning boss 26 is arranged close to the lifting end of the mounting plate 2, the sliding end of the positioning rib 25 is arranged close to the lifting end of the mounting plate 2, and one side of the test plate 4 is fitted and positioned with the positioning boss 26. With such a structure, the installation and disassembly of the test plate 4 are more convenient, facilitating the replacement of the test plate 4 after each test.

[0032] As Figure 3 and Figure 4 shown, a receiving cavity 12 is formed on the top surface of the machine body 1, one side of the receiving cavity 12 communicates with one side vertical surface of the machine body 1, and the collection box 6 is placed in the receiving cavity 12 and is arranged in contact with the other cavity wall of the receiving cavity 12; a positioning member 13 is further included, and the positioning member 13 is detachably installed on the inner wall of the receiving cavity 12, so that the collection box 6 is clamped between the positioning member 13 and the wall surface of the receiving cavity 12 for positioning. With such a structure, the installation and disassembly of the collection box 6 are more convenient.

[0033] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes, combinations and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A coating quality inspection device, characterized in that: It includes a machine body, a mounting plate, a lifting seat, a test plate, a liquid storage funnel, a collecting box, a lifting drive mechanism and a control panel; the lifting seat can be installed on the machine body so as to move up and down; one end of the mounting plate is the lifting end, and the other end of the mounting plate is the sliding end, the lifting end of the mounting plate can be rotatably installed on the lifting seat, and the sliding end of the mounting plate can be slidably installed on the machine body, and the sliding direction of the sliding end of the mounting plate is set along the horizontal direction; the lifting drive mechanism is installed on the machine body, and the lifting drive mechanism is used to drive the lifting seat to move up and down; the test plate is detachably installed on the top surface of the mounting plate; the liquid storage funnel is installed on the lifting seat, the liquid outlet of the liquid storage funnel is above the test plate, and an electromagnetic valve is installed on the liquid outlet of the liquid storage funnel; the collecting box is placed on the machine body and below the sliding end of the mounting plate; the control panel is electrically connected to the electromagnetic valve and the lifting drive mechanism, and the control panel is used to control the operation of the electromagnetic valve and the lifting drive mechanism.

2. A coating quality detection device as claimed in claim 1, characterized in that: The lifting drive mechanism includes two lifting rails, two lifting screws and two lifting motors; one lifting rail corresponds to one lifting screw and one lifting motor, the lifting rail is installed on the machine body, the length direction of the lifting rail is arranged along the up and down direction, the two ends of the lifting screw are respectively rotatably installed on the two ends of the lifting rail, the lifting motor is installed on the machine body, the lifting motor is electrically connected to the control panel, and the lifting motor is used to drive the lifting screw to rotate; the lifting seat is located between the two lifting rails, the two sides of the lifting seat are respectively slidably connected to the two lifting rails, and the two sides of the lifting seat are respectively threadedly connected to the two lifting screws, so that the two lifting screws can drive the lifting seat to perform lifting actions along the lifting rails through synchronous rotation.

3. A coating quality detection device as claimed in claim 2, characterized in that: The lifting seat includes two sliders and a support frame; one slider corresponds to a lifting slide rail and a lifting screw, the slider is slidably installed on the lifting slide rail and is threadedly connected to the lifting screw, and the lifting ends of the mounting plate are rotatably installed on the two sliders on both sides; the two sliders are connected by a support frame, and the liquid storage funnel is detachably fixed on the support frame.

4. A coating quality detection device as claimed in claim 1, characterized in that: Two baffles are also installed on the top surface of the mounting plate. The two baffles are arranged side by side along the width direction of the mounting plate. The length direction of each baffle is along the length direction of the mounting plate. The test plate is located between the two baffles.

5. A coating quality detection device as claimed in claim 4, characterized in that: It also includes two sliding seats, a brush roller, a brush motor, a sliding drive mechanism and a water spray mechanism; the two sliding seats are slidably mounted on two baffles, respectively, and the sliding direction of each sliding seat is set along the length direction of the mounting plate; the two ends of the brush roller are rotatably mounted on the two sliding seats, respectively, and the rotation axis of the brush roller is set along the width direction of the mounting plate; the brush motor is mounted on one of the sliding seats, and the brush motor is used to drive the brush roller to rotate; the sliding drive mechanism is mounted on the mounting plate, and the sliding drive mechanism is used to drive the sliding seat to slide; the water spray mechanism is used to spray water on the surface of the test plate; The brush motor, the sliding drive mechanism, the water spray mechanism and the control panel are electrically connected.

6. A coating quality detection device as claimed in claim 5, characterized in that: The sliding drive mechanism includes two driving motors and two transmission screws; a sliding seat corresponds to a driving motor and a transmission screw, and the two ends of the transmission screw are rotatably mounted on the mounting plate respectively. The rotation axis of the transmission screw is arranged along the length direction of the mounting plate. The sliding seat is threadedly connected with the transmission screw, and the driving motor is mounted on the mounting plate. The driving motor is used to drive the transmission screw to rotate, so that the sliding seat can be driven by the transmission screw to slide along the baffle.

7. A coating quality detection device as claimed in claim 5, characterized in that: Each baffle is provided with a first stopper, a guide rail and a second stopper in sequence along its length direction. The sliding seat is slidably mounted on the guide rail. The first stopper and the second stopper are used to limit the movable range of the sliding seat.

8. A coating quality detection device as claimed in claim 4, characterized in that: The mounting plate is formed with a positioning convex strip, and the two ends of the positioning convex strip are respectively connected to the two baffles; the bottom surface of the test plate is formed with a positioning groove, and the positioning groove of the test plate can be detachably clamped on the positioning convex strip for fixing.

9. A coating quality detection device as claimed in claim 8, characterized in that: A positioning boss is formed on the mounting plate, the positioning boss is located between two baffles, the positioning boss is arranged close to the lifting end of the mounting plate, the positioning convex strip is arranged close to the lifting end of the mounting plate and the sliding end is arranged, and one side of the test plate is fitted and positioned with the positioning boss.

10. A coating quality inspection device as claimed in claim 1, characterized in that: A accommodating cavity is formed on the top surface of the body, one side of the accommodating cavity is connected to a side vertical surface of the body, and the collection box is placed in the accommodating cavity and is arranged in contact with the other side cavity wall of the accommodating cavity; it also includes a positioning member, which is detachably mounted on the inner wall of the accommodating cavity so that the collection box is clamped between the positioning member and the wall of the accommodating cavity for positioning.

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