Ultrasonic extraction tube for testing light elastic material

Abstract

The utility model discloses an ultrasonic extraction tube for testing a light elastic material, and belongs to the field of material testing instruments. The ultrasonic extraction tube for testing the light elastic material comprises an extraction tube body and a tube cap, wherein the tube cap is in threaded sealing connection with an opening in the upper end of the extraction tube body; the tube cap is connected with a support rod inserted into the hollow cavity of the extraction tube body; the lower end of the supporting rod is detachably connected with a blocking plate, the size of a gap between the blocking plate and the extraction pipe body is smaller than that of the elastic particles, a plurality of through plate holes are formed in the blocking plate, and the size of the plate holes is smaller than that of the elastic particles. The ultrasonic extraction tube for testing the light elastic material has the beneficial effects that the barrier plate is arranged in the ultrasonic extraction tube for testing the light elastic material, so that elastic particles can be completely immersed in extraction liquid, and the accuracy of experimental results and the comparability of data among laboratories are ensured; the supporting rod and the blocking plate are detachable parts, the structure is simple, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of material testing instruments, in particular to an ultrasonic extraction tube used for testing light elastic materials. Background Art

[0002] Lightweight elastic materials are widely used in the fields of construction, HVAC, sports venues, etc. due to their high elasticity, high toughness, low density, good mechanical properties, recoverable thermal insulation, and thermal insulation. They are important thermal insulation materials for industry and construction, as well as cushioning materials for sports venues, such as flexible foam rubber and plastic for HVAC, cushioning pads for artificial grass, and thermoplastic polyurethane rubber (TPU) particles for plastic tracks.

[0003] In order to make lightweight elastic materials have different mechanical and process properties, plasticizers, flame retardants, etc. are often added during the production process. For example, polycyclic aromatic hydrocarbons as inherent components of plasticizer oil and carbon black, phthalate compounds as typical plasticizers, and chlorinated paraffin as plasticizer and flame retardant, these harmful substances will be added during the production process of lightweight elastic materials. These added harmful substances have different degrees of environmental risks. Relevant product standards such as GB36246-2018 "Synthetic material surface sports venues for primary and secondary schools" and GB / T 35608-2017 "Green Product Evaluation Insulation Materials" set limits on the sum of 18 kinds of polycyclic aromatic hydrocarbons, benzo[a]pyrene content, short-chain chlorinated paraffin content, etc. However, due to the low density of lightweight elastic materials, they are often not completely immersed in the extractant during the test process, which affects the accuracy of the test results and the comparability of the test results of different testing agencies.

[0004] In experiments using ultrasonic extraction to test the content of harmful substances in lightweight elastic materials such as artificial turf cushions and flexible foam rubber and plastic, the samples cannot be completely immersed in the extractant, resulting in inaccurate test results and incomparable results between laboratories. This problem urgently needs to be resolved from the root. Utility Model Content

[0005] In order to solve the defects of the prior art, the utility model provides an ultrasonic extraction tube for testing lightweight elastic materials, so as to improve the accuracy of experimental results and the comparability of data between laboratories.

[0006] The utility model provides the following technical solutions:

[0007] An ultrasonic extraction tube for testing lightweight elastic materials comprises an extraction tube body and a tube cap, wherein the extraction tube body is a hollow cavity with an opening at the upper end, the outer wall of the upper opening of the extraction tube body is provided with an outer tube body thread, the inner wall of the tube cap is provided with an inner tube cap thread matching the outer tube thread of the extraction tube body, and the tube cap is thread-sealed and connected to the upper opening of the extraction tube body; the tube cap is connected to a support rod inserted into the hollow cavity of the extraction tube body, and the upper end of the support rod is vertically detachably connected to the tube cap body; a blocking plate is detachably connected to the support rod, the gap between the blocking plate and the extraction tube body is smaller than the size of the elastic particles, and a plurality of penetrating plate holes are provided on the blocking plate, and the plate holes are smaller than the size of the elastic particles.

[0008] Furthermore, a non-penetrating pipe cap slot is provided on the inner side of the pipe cap, the upper end of the support rod is tightly fitted with the pipe cap slot, a non-penetrating blocking plate slot is provided on the upper part of the blocking plate, and the lower end of the support rod is tightly fitted with the blocking plate slot.

[0009] Furthermore, a pipe cap inserting tube is also provided on the pipe cap slot, and the pipe cap inserting tube is tightly matched with the supporting rod.

[0010] Furthermore, the support rod includes a support inner rod and a support sleeve. The surface of the support inner rod is rough. The support inner rod is sleeved on the support sleeve. The upper end of the support inner rod is tightly fitted with the pipe cap slot, and the lower end of the support sleeve is tightly fitted with the blocking plate.

[0011] Furthermore, a pipe cap inserting tube is also provided on the pipe cap slot, and the pipe cap inserting tube is tightly matched with the supporting inner rod.

[0012] Furthermore, the support rod is a support threaded rod, a non-penetrating pipe cap threaded slot is provided on the inner side of the pipe cap, the upper end of the support threaded rod is threadedly connected to the pipe cap threaded slot, a penetrating blocking plate threaded slot is provided on the upper part of the blocking plate, and the support threaded rod is threadedly connected to the blocking plate threaded slot.

[0013] Furthermore, an internal threaded insert is provided on the threaded slot of the pipe cap, and the internal threaded insert is threadedly connected to the supporting threaded rod.

[0014] Furthermore, the extraction tube body is provided with a volume scale mark.

[0015] Furthermore, the extraction tube body, the tube cap, the support rod and the blocking plate are made of materials that are resistant to high temperatures and are not prone to chemical reactions.

[0016] Furthermore, the volume capacity of the extraction tube body is 15 mL to 50 mL.

[0017] The utility model has the following beneficial effects:

[0018] 1. The setting of the baffle plate in the ultrasonic extraction tube for lightweight elastic material testing can ensure that the elastic particles are completely immersed in the extraction liquid, ensuring the accuracy of the experimental results and the comparability of data between laboratories;

[0019] 2. The support rod and baffle plate of the ultrasonic extraction tube for testing lightweight elastic materials are detachable parts with simple structure and easy installation;

[0020] 3. The position of the baffle plate in the inner cavity of the extraction tube body can be flexibly adjusted to adapt to the extraction of elastic particles with different added amounts in the ultrasonic extraction tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A front view of the ultrasonic extraction tube used for testing lightweight elastic materials;

[0022] Figure 2 It is a front view of the ultrasonic extraction tube for lightweight elastic material testing of Example 1;

[0023] Figure 3 is a three-dimensional diagram of the extraction tube body;

[0024] Figure 4 A three-dimensional diagram of the assembly state of the pipe cap, the support rod and the blocking plate;

[0025] Figure 5 A three-dimensional diagram of a structure of the pipe cap of Example 1;

[0026] Figure 6 is a three-dimensional diagram of the blocking plate of Example 1;

[0027] Figure 7 is a three-dimensional diagram of another structure of the pipe cap of Example 1;

[0028] Figure 8 It is a front view of an ultrasonic extraction tube for lightweight elastic material testing in Example 2;

[0029] Fig. 9 A three-dimensional diagram of the assembly state of the supporting inner rod, the supporting sleeve and the blocking plate;

[0030] Fig.10 A front view of the assembly state of the supporting inner rod, the supporting sleeve and the blocking plate;

[0031] Fig.11 for Fig.10 Sectional view along AA direction;

[0032] Fig.12 It is a front view of an ultrasonic extraction tube for lightweight elastic material testing of Example 3;

[0033] Fig.13A three-dimensional diagram of a structure of a pipe cap of Example 3;

[0034] Fig.14 is a three-dimensional diagram of another structure of the pipe cap of Example 3;

[0035] Fig.15 is a top view of the supporting threaded rod and the blocking plate of Example 3;

[0036] Fig.16 for Fig.15 Cross-sectional view along the BB direction;

[0037] Fig.17 This is a three-dimensional diagram of the blocking plate of Example 3.

[0038] In the figure, 1. extraction tube body; 11. outer thread of tube body; 2. tube cap; 21. inner thread of tube cap; 22. tube cap slot; 22a. tube cap threaded slot; 23. tube cap insert; 23a. inner threaded insert; 3. support rod; 3a. support threaded rod; 3b. support inner rod; 3c. support sleeve; 4. blocking plate; 41. plate hole; 42. blocking plate slot; 42a. blocking plate threaded slot. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0040] The ultrasonic extraction tube for testing lightweight elastic materials comprises an extraction tube body 1 and a tube cap 2. The extraction tube body 1 is a hollow cavity with an upper opening. The lightweight elastic material is cut into elastic particles according to regulations and then placed in the hollow cavity of the extraction tube body 1. The outer wall of the upper opening of the extraction tube body 1 is provided with an outer tube thread 11, and the inner wall of the tube cap 2 is provided with an inner tube thread 21 that matches the outer thread of the extraction tube body 1. The tube cap 2 is thread-sealed with the upper opening of the extraction tube body 1.

[0041] The tube cap 2 is connected to a support rod 3 inserted into the hollow cavity of the extraction tube body 1 , and the upper end of the support rod 3 is vertically detachably connected to the tube cap 2 body.

[0042] The support rod 3 is detachably connected to a blocking plate 4, and the gap between the blocking plate 4 and the extraction tube body 1 is smaller than the size of the elastic particles. The blocking plate 4 is provided with a plurality of plate holes 41, and the plate holes 41 are smaller than the size of the elastic particles. The extraction tube body 1 is provided with a volume scale (not shown in the figure) to facilitate the control of the amount of the extractant. When in use, the liquid level of the extractant is higher than the height of the blocking plate 4, such as Figure 1As shown, it is ensured that the elastic particles are completely immersed in the extraction liquid to improve the accuracy of the experimental data and the comparability of data between laboratories.

[0043] The ultrasonic extraction tube used for testing lightweight elastic materials is made of a material that is resistant to high temperatures and not prone to chemical reactions, such as polypropylene. The volume capacity of the extraction tube body 1 is 15 mL to 50 mL.

[0044] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited thereto.

[0045] Example 1

[0046] An embodiment of an ultrasonic extraction tube for testing lightweight elastic materials is as follows Figures 2 to 6 As shown, a non-penetrating pipe cap slot 22 is provided on the inner side of the pipe cap 2, the upper end of the support rod 3 is tightly fitted with the pipe cap slot 22, a non-penetrating blocking plate slot 42 is provided on the upper part of the blocking plate 4, the lower end of the support rod 3 is tightly fitted with the blocking plate slot 42, and the support rod 3 is a cylindrical rod.

[0047] In a preferred embodiment, the cap slot 22 is further provided with a cap insert 23. Figure 7 As shown, the pipe cap insert 23 is tightly matched with the support rod 3, thereby increasing the connection length between the pipe cap 2 and the support rod 3.

[0048] Example 2

[0049] An embodiment of an ultrasonic extraction tube for testing lightweight elastic materials is as follows Figures 8 to 11 As shown, the difference from Example 1 is that the support rod 3 includes a support inner rod 3b and a support sleeve 3c, the surface of the support inner rod 3b is rough, the support inner rod 3b is sleeved on the support sleeve 3c, the upper end of the support inner rod 3b is tightly matched with the pipe cap slot 22, and the lower end of the support sleeve 3c is tightly matched with the blocking plate slot 42. Similarly, in a preferred embodiment, a pipe cap inserting tube 23 is also provided on the pipe cap slot 22, and the pipe cap inserting tube 23 is tightly matched with the support inner rod 3b, thereby increasing the connection length between the pipe cap 2 and the support inner rod 3b.

[0050] The supporting inner rod 3b and the supporting sleeve 3c can slide relative to each other, so as to adjust the position of the blocking plate 4 in the inner cavity of the extraction tube body 1 to adapt to the extraction of elastic particles with different added amounts in the ultrasonic extraction tube.

[0051] Example 3

[0052] An embodiment of an ultrasonic extraction tube for testing lightweight elastic materials is as follows Figures 12 to 17As shown, the difference from Example 1 is that the support rod 3 is a support threaded rod 3a, a non-penetrating pipe cap threaded slot 22a is provided on the inner side of the pipe cap 2, the upper end of the support threaded rod 3a is threadedly connected to the pipe cap threaded slot 22a, and a penetrating blocking plate threaded slot 42a is provided on the upper part of the blocking plate 4, and the support threaded rod 3a is threadedly connected to the blocking plate threaded slot 42a.

[0053] The pipe cap 2 is threadedly connected to the supporting threaded rod 3a, and the connection is more secure. In a preferred embodiment, the pipe cap threaded slot 22a is also provided with an internal threaded insert 23a, such as Fig.14 As shown, the internal threaded insert 23a is threadedly connected to the supporting threaded rod 3a, thereby increasing the connection length between the pipe cap 2 and the supporting threaded rod 3a.

[0054] The blocking plate 4 can move relatively on the supporting threaded rod 3a, so as to adjust the position of the blocking plate 4 in the inner cavity of the extraction tube body 1 to adapt to the extraction of elastic particles with different added amounts in the ultrasonic extraction tube.

[0055] The following are steps for using the ultrasonic extraction tube for testing lightweight elastic materials of the utility model:

[0056] 1. According to the standard, a certain amount of lightweight elastic material is weighed, cut into elastic particles, and then placed in the hollow cavity of the extraction tube body 1;

[0057] 2. Add a specified amount of extractant into the ultrasonic extraction tube, and adjust the position of the baffle plate 4 on the support rod 3 so that the elastic particles are completely immersed in the extractant;

[0058] 3. Tighten the tube cap 2 and place the ultrasonic extraction tube for lightweight elastic material testing into the ultrasonic generator;

[0059] 4. Carry out the test according to the conditions specified in the standard.

[0060] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solution of the present invention rather than to limit it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solution recorded in the aforementioned embodiments within the technical scope disclosed by the present invention, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present invention, and should be included in the protection scope of the present invention.

Claims

1. An ultrasonic extraction tube for testing lightweight elastic materials, comprising an extraction tube body (1) and a tube cap (2), wherein the extraction tube body (1) is a hollow cavity with an upper opening, the outer wall of the upper opening of the extraction tube body (1) is provided with an outer tube thread (11), the inner wall of the tube cap (2) is provided with an inner tube thread (21) matching the outer thread of the extraction tube body (1), and the tube cap (2) is connected to the upper opening of the extraction tube body (1) by thread sealing; characterized in that: The tube cap (2) is connected to a support rod (3) inserted into the hollow cavity of the extraction tube body (1), and the upper end of the support rod (3) is vertically detachably connected to the tube cap (2) body; The support rod (3) is detachably connected to a blocking plate (4), the gap between the blocking plate (4) and the extraction tube body (1) is smaller than the size of the elastic particles, and the blocking plate (4) is provided with a plurality of penetrating plate holes (41), and the plate holes (41) are smaller than the size of the elastic particles.

2. The ultrasonic extraction tube for testing lightweight elastic materials according to claim 1, characterized in that: A non-penetrating pipe cap slot (22) is provided on the inner side of the pipe cap (2), the upper end of the support rod (3) is tightly fitted with the pipe cap slot (22), a non-penetrating blocking plate slot (42) is provided on the upper part of the blocking plate (4), and the lower end of the support rod (3) is tightly fitted with the blocking plate slot (42).

3. The ultrasonic extraction tube for testing lightweight elastic materials according to claim 2, characterized in that: A pipe cap inserting tube (23) is also provided on the pipe cap slot (22), and the pipe cap inserting tube (23) is tightly matched with the support rod (3).

4. The ultrasonic extraction tube for testing lightweight elastic materials according to claim 2, characterized in that: The support rod (3) comprises a support inner rod (3b) and a support sleeve (3c); the surface of the support inner rod (3b) is rough; the support inner rod (3b) is sleeved on the support sleeve (3c); the upper end of the support inner rod (3b) is tightly matched with a pipe cap slot (22); and the lower end of the support sleeve (3c) is tightly matched with a blocking plate slot (42).

5. The ultrasonic extraction tube for testing lightweight elastic materials according to claim 4, characterized in that: A pipe cap inserting tube (23) is also provided on the pipe cap slot (22), and the pipe cap inserting tube (23) is tightly matched with the supporting inner rod (3b).

6. The ultrasonic extraction tube for testing lightweight elastic materials according to claim 1, characterized in that: The support rod (3) is a support threaded rod (3a); a non-penetrating pipe cap threaded slot (22a) is provided on the inner side of the pipe cap (2); the upper end of the support threaded rod (3a) is threadedly connected to the pipe cap threaded slot (22a); a penetrating blocking plate threaded slot (42a) is provided on the upper part of the blocking plate (4); the support threaded rod (3a) is threadedly connected to the blocking plate threaded slot (42a).

7. The ultrasonic extraction tube for testing lightweight elastic materials according to claim 6, characterized in that: An internal threaded insert (23a) is also provided on the pipe cap threaded insertion slot (22a), and the internal threaded insert (23a) is threadedly connected to the supporting threaded rod (3a).

8. The ultrasonic extraction tube for testing lightweight elastic materials according to any one of claims 1 to 7, characterized in that: The extraction tube body (1) is provided with volume scale markings.

9. The ultrasonic extraction tube for testing lightweight elastic materials according to any one of claims 1 to 7, characterized in that: The extraction tube body (1), the tube cap (2), the support rod (3) and the blocking plate (4) are made of materials that are resistant to high temperatures and are not prone to chemical reactions.

10. The ultrasonic extraction tube for testing lightweight elastic materials according to any one of claims 1 to 7, characterized in that: The volume capacity of the extraction tube body (1) is 15 mL to 50 mL.

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