Metal furniture surface coating heavy metal detection sampling device

By designing a sampling device that includes a handle base, a scraping component, and a vacuum pump, the problems of low efficiency and damage to furniture in the existing heavy metal detection of metal furniture coatings are solved, and an efficient and safe sampling process is achieved.

CN224247352UActive Publication Date: 2026-05-15YUNNAN PROVINCIAL INST OF PROD QUALITY SUPERVISION & INSPECTION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN PROVINCIAL INST OF PROD QUALITY SUPERVISION & INSPECTION
Filing Date
2025-05-22
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing methods for detecting heavy metals in the surface coatings of metal furniture are inefficient, can easily damage the furniture, and are difficult to guarantee in terms of accuracy.

Method used

Design a sampling device including a handle base, a scraping assembly, a vacuum pump, and a collection tube. The device uses a motor to drive the scraping blade to scrape the coating sample and uses a vacuum pump to collect the sample into the collection tube.

Benefits of technology

It improves sampling efficiency, avoids dust and environmental pollution, and enhances the safety and accuracy of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal furniture surface coating heavy metal detection sampling device which comprises a grab handle base, a sample scraping assembly is fixedly installed at the bottom of the grab handle base, a material pouring channel is formed in the grab handle base, a sampling connector is detachably installed at the top of the material pouring channel in an inserted mode, and the sampling connector is connected with the grab handle base. The top end of the sampling connector is fixedly connected with a sampling guide pipe, the other end of the sampling guide pipe is connected with the input end of a dust collection pump, the dust collection pump is fixedly installed on the surface of a material collection pipe cover, the output end of the dust collection pump penetrates through the material collection pipe cover, and a material collection test tube is fixedly installed at the bottom of the material collection pipe cover; the scraping shaft and the scraping blade are driven by the motor to scrape samples, so that the traditional manual scraping or cutting mode is replaced, and the sampling efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of drainage equipment technology, specifically to a heavy metal detection and sampling device for the surface coating of metal furniture. Background Technology

[0002] As people's living standards improve, their demands for the quality and safety of furniture are also increasing. Metal furniture, due to its durability and aesthetic appeal, is favored by consumers. However, the coatings on the surface of metal furniture may contain heavy metals such as lead, cadmium, and mercury, which can be harmful to human health. Therefore, it is essential to test for heavy metals in the surface coatings of metal furniture. Currently, the testing of heavy metals in the surface coatings of metal furniture usually requires sampling. Existing sampling methods mainly involve manual scraping or cutting, which is not only inefficient but also easily damages the surface of the metal furniture, affecting its appearance. In addition, the accuracy of manual sampling is difficult to guarantee and is easily affected by human factors. Therefore, this utility model provides a sampling device for testing heavy metals in the surface coatings of metal furniture to solve the above-mentioned technical problems. Summary of the Invention

[0003] Given that the detection of heavy metals in the surface coating of metal furniture usually requires sampling first, and considering the problems that exist in the sampling process, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide a heavy metal detection and sampling device for the surface coating of metal furniture, which solves the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sampling device for detecting heavy metals in the surface coating of metal furniture includes a handle base, a scraping component fixedly installed at the bottom of the handle base, a pouring channel opened inside the handle base, a sampling connector detachably inserted at the top of the pouring channel, the top end of the sampling connector being fixedly connected to a sampling guide tube, the other end of the sampling guide tube being connected to the input end of a dust pump, a receiving tube cover fixedly installed on the surface of the dust pump, the output end of the dust pump penetrating through the receiving tube cover, and a receiving test tube fixedly installed at the bottom of the receiving tube cover.

[0007] The scraping assembly includes a mounting frame, the pouring channel is connected to the inner wall of the mounting frame, a rotating shaft is rotatably mounted on the inner wall of the mounting frame, the rotating shaft rotatably passes through the mounting frame and is fixedly connected to the output shaft of the motor, the motor is fixedly mounted on the surface of the mounting frame, a scraping shaft is fixedly fitted on the surface of the rotating shaft, and a scraping blade is fixedly mounted on the surface of the scraping shaft.

[0008] Preferably, the bottom surface of the receiving test tube is provided with a threaded groove, and a bottom cap is threaded onto the bottom of the receiving test tube through the threaded groove.

[0009] Preferably, a scale is provided on the surface of the bottom cover.

[0010] Preferably, wave-boosting plates are fixedly installed at both ends of the surface of the sampling connector.

[0011] Preferably, the surface of the grip base is provided with a switch body for controlling the motor or the vacuum pump switch.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] This invention utilizes a motor-driven scraping shaft and scraping blade for sample scraping, replacing traditional manual scraping or cutting methods, thus significantly improving sampling efficiency. Furthermore, during scraping, a vacuum pump draws the sample into a hollow collection tube, which collects metal powder generated during sampling, preventing powder from flying and reducing environmental pollution. Finally, a switch on the handle base facilitates operation and controls the start and stop of the motor or vacuum pump, enhancing sampling safety.

[0014] This invention features a detachable bottom cap on the bottom of the receiving test tube, with a scale on the surface of the bottom cap; this allows the bottom cap to measure the amount of sample taken, making it convenient for users to monitor the sampling process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a heavy metal detection and sampling device for the surface coating of metal furniture proposed in this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the internal structure of the scraping component.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Handle base; 2. Scraping assembly; 3. Sampling connector; 4. Amplifier plate; 5. Sampling guide tube; 6. Dust pump; 7. Receiving tube cover; 8. Receiving test tube; 9. Threaded groove; 10. Bottom cover; 11. Scale line; 12. Switch body; 21. Mounting frame; 22. Rotating shaft; 23. Motor; 24. Scraping shaft; 25. Scraping blade; 101. Discharge channel. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This utility model discloses a heavy metal detection and sampling device for the surface coating of metal furniture.

[0022] Reference Figure 1-2 A sampling device for detecting heavy metals in the surface coating of metal furniture includes a handle base 1, a scraping component 2 fixedly installed at the bottom of the handle base 1, a pouring channel 101 opened inside the handle base 1, a sampling connector 3 detachably inserted at the top of the pouring channel 101, the top end of the sampling connector 3 being fixedly connected to the sampling conduit 5, the other end of the sampling conduit 5 being connected to the input end of the vacuum pump 6, the vacuum pump 6 being fixedly installed on the surface of the receiving tube cover 7, the output end of the vacuum pump 6 passing through the receiving tube cover 7, and a receiving test tube 8 being fixedly installed at the bottom of the receiving tube cover 7.

[0023] The scraping component 2 includes a mounting frame 21, a pouring channel 101 that communicates with the inner wall of the mounting frame 21, a rotating shaft 22 that is rotatably mounted on the inner wall of the mounting frame 21, the rotating shaft 22 rotatably passes through the mounting frame 21 and is fixedly connected to the output shaft of the motor 23, the motor 23 is fixedly mounted on the surface of the mounting frame 21, a scraping shaft 24 is fixedly fitted on the surface of the rotating shaft 22, and a scraping blade 25 is fixedly mounted on the surface of the scraping shaft 24.

[0024] Reference Figure 1 The bottom surface of the receiving test tube 8 is provided with a threaded groove 9, and the bottom end of the receiving test tube 8 is threaded with a bottom cap 10 through the threaded groove 9.

[0025] Reference Figure 1 A scale is provided on the surface of the bottom cover 10.

[0026] Reference Figure 1 A wave-boosting plate 4 is fixedly installed at both ends of the surface of the sampling connector 3.

[0027] Reference Figure 1 The handle base 1 has a switch body 12 on its surface that controls the motor 23 or the vacuum pump 6.

[0028] In this invention, when using the heavy metal detection sampling device for the surface coating of metal furniture, the bottom end of the scraping component 2 is first aligned with the coating on the surface of the metal furniture. Then, the switch body 12 is pressed to start the motor 23. The motor 23 drives the scraping shaft 24 to rotate through the rotating shaft 22. The scraping shaft 24 drives the scraping blade 25 to scrape off part of the coating on the surface of the metal furniture. The scraped metal powder is pumped by the dust pump 6 through the pouring channel 101 and the sampling conduit 5 into the receiving test tube 8, and collected by the bottom seal at the bottom of the receiving test tube 8. It is worth noting that the inner wall of the bottom seal 10 is provided with an adsorbent material that can adsorb metal powder. During the sampling process, the amount of sample can be determined by observing the scale line 11 on the outer wall of the bottom seal 10. After the sampling is completed, the motor 23 and the dust pump 6 are turned off by the switch body 12, and the bottom seal 10 at the bottom of the receiving test tube 8 is removed to take out the metal powder inside the bottom seal 10 for testing.

[0029] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sampling device for detecting heavy metals in the surface coating of metal furniture, comprising a handle base (1), characterized in that, The bottom of the handle base (1) is fixedly installed with a scraping component (2). The handle base (1) has a pouring channel (101) inside. The top of the pouring channel (101) is detachably inserted with a sampling connector (3). The top of the sampling connector (3) is fixedly connected to the sampling guide tube (5). The other end of the sampling guide tube (5) is connected to the input end of the vacuum pump (6). The vacuum pump (6) is fixedly installed with a receiving tube cover (7). The output end of the vacuum pump (6) passes through the receiving tube cover (7). The bottom of the receiving tube cover (7) is fixedly installed with a receiving test tube (8). The scraping assembly (2) includes a mounting frame (21), the pouring channel (101) is connected to the inner wall of the mounting frame (21), a rotating shaft (22) is rotatably mounted on the inner wall of the mounting frame (21), the rotating shaft (22) rotates through the mounting frame (21) and is fixedly connected to the output shaft of the motor (23), the motor (23) is fixedly mounted on the surface of the mounting frame (21), a scraping shaft (24) is fixedly fitted on the surface of the rotating shaft (22), and a scraping blade (25) is fixedly mounted on the surface of the scraping shaft (24).

2. The heavy metal detection and sampling device for metal furniture surface coatings according to claim 1, characterized in that, The bottom surface of the receiving tube (8) is provided with a threaded groove (9), and the bottom end of the receiving tube (8) is threaded with a bottom cap (10) through the threaded groove (9).

3. The heavy metal detection and sampling device for metal furniture surface coatings according to claim 2, characterized in that, A scale (11) is provided on the surface of the bottom cover (10).

4. The heavy metal detection and sampling device for metal furniture surface coatings according to claim 1, characterized in that, Wave-boosting plates (4) are fixedly installed at both ends of the surface of the sampling connector (3).

5. A heavy metal detection and sampling device for metal furniture surface coatings according to claim 1, characterized in that, The surface of the grip base (1) is provided with a switch body (12) for controlling the motor (23) or the vacuum pump (6).