Building material freezing resistance detection equipment

Abstract

The utility model discloses building material freezing resistance detection equipment which comprises a cabinet body, and a refrigeration cavity and a plurality of placement cavities are formed in the cabinet body; a loading box is slidably connected into each placing cavity, and the rear end of each loading box is connected with a first insertion pipe and a second insertion pipe; a cold supply pipe and a cold return pipe are arranged in the cabinet body, and the upper ends of the cold supply pipe and the cold return pipe are communicated with the refrigeration cavity; the detection efficiency and reliability are improved through the circulating refrigeration system, the double-cavity design is adopted, the motor is used for driving the fan to force air circulation, a closed loop of the first cavity, the cold supply pipe, the loading box, the cold return pipe and the second cavity is formed, it is guaranteed that cold air is evenly distributed to all the detection units, efficient energy utilization is achieved through heat exchange, and the detection efficiency and reliability are improved. Convection of cold and hot air is effectively enhanced, and the refrigeration temperature is more balanced.

Description

Technical Field

[0001] This utility model relates to a testing device for the frost resistance of building materials, belonging to the technical field of building material testing equipment. Background Technology

[0002] In the field of frost resistance testing of building materials, traditional equipment generally suffers from technical bottlenecks such as low cooling efficiency, poor temperature uniformity, and complex operation. Early devices mostly adopted static cooling methods, and the lack of an effective gas circulation mechanism between the cooling chamber and the testing unit led to uneven distribution of cold air and temperature differences in samples at different locations, which seriously affected the testing accuracy. In addition, the connection between the loading box and the cooling pipeline required manual valve control, which not only increased the operation process, but also caused temperature fluctuations due to frequent opening and closing, making it difficult to meet the needs of continuous testing of multiple batches. Therefore, a new frost resistance testing device for building materials was proposed. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a testing device for the frost resistance of building materials, which achieves efficient energy utilization through heat exchange, effectively enhances the convection of hot and cold gases, and makes the refrigeration temperature more balanced.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a testing device for the frost resistance of building materials, comprising:

[0005] The cabinet has a cooling chamber and multiple storage chambers inside.

[0006] Multiple loading boxes slide into multiple placement cavities, and each loading box is connected to a first insertion tube and a second insertion tube at its rear end.

[0007] The upper ends of both the cooling supply pipe and the cooling return pipe are connected to the refrigeration chamber.

[0008] When the loading box slides into the placement cavity, tube one and tube two are connected to the cooling supply tube and the cooling return tube, respectively.

[0009] Preferably, the cooling chamber includes a first chamber and a second chamber, with an opening between the first chamber and the second chamber, and a fan is provided inside the opening to blow gas from the first chamber into the second chamber.

[0010] The first cavity is connected to the return cooling pipe, and the second cavity is connected to the supply cooling pipe.

[0011] Preferably, a power shaft is connected to the fan's rotating shaft, the end of which extends to the outside of the cabinet. A motor is fixed on the cabinet, and the output shaft of the motor is connected to the outer end of the power shaft via a belt.

[0012] Preferably, each placement cavity on the cooling pipe is provided with a connecting component, the connecting component including a sleeve, the sleeve being fixed on the cooling pipe;

[0013] When the loading box is placed into the placement cavity, the insertion tube is inserted into the inside of the sleeve, and the inner cavity of the loading box is connected to the cooling pipe;

[0014] The return cooling pipe is equipped with multiple conductive components II, which have the same function as conductive components I.

[0015] Preferably, the first conductive component further includes a sliding core, which slides within the sleeve via a spring, and the sliding core is provided with a vertical groove and a T-shaped groove;

[0016] When the loading box is placed into the placement cavity, the cooling pipe is connected to the insertion tube through the T-slot;

[0017] When the loading box is pulled out of the placement chamber, the cooling pipe is connected through a vertical groove.

[0018] Preferably, two guide rods are symmetrically fixedly connected to the sliding core, and two lugs are fixedly connected to the side wall of the sleeve. The two guide rods slide on the two lugs respectively, and a spring is sleeved on the guide rod. One end of the spring abuts against the side wall of the lug, and the other end of the spring abuts against the end of the guide rod.

[0019] Preferably, the loading box is provided with a sieve plate for supporting building material samples, and the interior of the loading box and below the sieve plate is divided into a serpentine channel by a partition, with the first insertion tube and the second insertion tube respectively connected to the two ends of the serpentine channel.

[0020] Preferably, the front end of the loading box is provided with a lock.

[0021] Preferably, a cooling module is provided inside the cavity two.

[0022] Preferably, a temperature control module is provided on the front side wall of the cabinet.

[0023] Compared with existing technologies:

[0024] 1. This utility model improves detection efficiency and reliability through a circulating refrigeration system. It adopts a dual-chamber design and uses a motor-driven fan to force gas circulation, forming a closed loop between chamber one, the cold supply pipe, the loading box, the return pipe, and chamber two. This ensures that the cold air is evenly distributed to each detection unit and achieves efficient energy utilization through heat exchange, effectively enhancing the convection of hot and cold gases and making the refrigeration temperature more balanced. The independent loading box facilitates sample loading and unloading and ensures the airtightness of the low-temperature environment.

[0025] 2. When the loading box is inserted, the insertion tube triggers the displacement of the sliding core to form a T-shaped channel, ensuring independent cooling for the target loading box while maintaining continuous conductivity of the main pipeline. When the loading box is removed, the sliding core automatically resets and closes the sleeve, keeping the main pipeline unobstructed while preventing cold air leakage. The operation is fully automated, requiring no manual intervention in opening and closing the pipeline, significantly improving testing efficiency. The bidirectional conductivity of the conductive component allows the refrigeration system to maintain circulation even when some loading boxes are idle, solving the temperature fluctuation problem caused by frequent opening and closing of traditional equipment and providing stable assurance for continuous testing of multiple batches, demonstrating significant energy-saving advantages and improved system reliability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a structural schematic diagram of the cabinet, cooling supply pipe and cooling return pipe of this utility model;

[0028] Figure 3 This is a cross-sectional view of the cabinet and the cooling cavity of this utility model;

[0029] Figure 4 This is a structural schematic diagram of the cabinet and loading box of this utility model;

[0030] Figure 5 This is an exploded view of the loading box and sieve plate of this utility model;

[0031] Figure 6 This is a schematic diagram showing the state when the vertical groove of this utility model is connected to the cooling pipe;

[0032] Figure 7 This is a schematic diagram showing the state when the T-shaped groove of this utility model is connected to the cooling pipe;

[0033] Figure 8 This is an exploded cross-sectional view of the sleeve and sliding core of this utility model.

[0034] In the picture:

[0035] 1. Cabinet;

[0036] 101. Cooling chamber; 1011. Chamber 1; 1012. Chamber 2; 1013. Opening; 102. Placement chamber;

[0037] 2. Loading box;

[0038] 201. Insertion tube one; 202. Insertion tube two; 203. Sieve plate; 204. Partition plate;

[0039] 3. Cooling supply pipe; 4. Cooling return pipe;

[0040] 5. Fan; 6. Drive shaft; 7. Motor;

[0041] 8. Conductor component one;

[0042] 801, Sleeve; 8011, Ear block; 802, Sliding core; 803, Vertical groove; 804, T-groove; 805, Spring;

[0043] 9. Conductor component two;

[0044] 10. Guide rod, 11. Lock, 12. Refrigeration module, 13. Temperature control module. Detailed Implementation

[0045] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0046] Example 1

[0047] like Figures 1-8 As shown in this embodiment, a building material frost resistance testing device is provided, including a cabinet 1. The cabinet 1 has a refrigeration chamber 101 and multiple placement chambers 102. The multiple placement chambers 102 are arranged in the cabinet 1, and the front end of each placement chamber 102 is open. A loading box 2 is slidably connected in each of the multiple placement chambers 102. The loading box 2 contains the building material sample to be tested for frost resistance. The rear end of each loading box 2 is connected to a first insertion tube 201 and a second insertion tube 202. After the loading box 2 slides into the placement chamber 102, the inner cavity of the loading box 2 is in a closed state. A cooling pipe 3 and a cooling return pipe 4 are provided in the cabinet 1. The upper ends of the cooling pipe 3 and the cooling return pipe 4 are connected to the refrigeration chamber 101.

[0048] When the loading box 2 slides into the placement cavity 102, the first insertion tube 201 and the second insertion tube 202 are connected to the cooling pipe 3 and the cooling return pipe 4, respectively.

[0049] The loading box 2 is equipped with a sieve plate 203 for supporting building material samples. The interior of the loading box 2 and the area below the sieve plate 203 are divided into a serpentine channel by a partition 204. Insertion tube 1 201 and insertion tube 202 are respectively connected to the two ends of the serpentine channel.

[0050] The front end of the loading box 2 is equipped with a lock 11.

[0051] The cavity 2 1012 is equipped with a cooling module 12, which is used to cool the cavity 2 1012 to achieve centralized cooling.

[0052] A temperature control module 13 is installed on the front side wall of cabinet 1.

[0053] Example 2

[0054] like Figure 2 and Figure 3 As shown, based on Embodiment 1, in order to enable the gas in the cooling chamber 101, loading box 2, cooling pipe 3 and cooling return pipe 4 to circulate, the cooling chamber 101 includes a first chamber 1011 and a second chamber 1012. An opening 1013 is provided between the first chamber 1011 and the second chamber 1012, and a fan 5 is provided inside the opening 1013 for blowing the gas in the first chamber 1011 into the second chamber 1012.

[0055] Among them, cavity one 1011 is connected to the return cooling pipe 4, and cavity two 1012 is connected to the supply cooling pipe 3.

[0056] A power shaft 6 is connected to the rotating shaft of the fan 5. The end of the power shaft 6 extends to the outside of the cabinet 1. A motor 7 is fixed on the cabinet 1. The output shaft of the motor 7 is connected to the outer end of the power shaft 6 by a belt.

[0057] After the motor 7 starts, the output shaft of the motor 7 drives the power shaft 6 to rotate, which in turn drives the fan 5 to start. Once the fan 5 starts, forced circulation is achieved. That is, the fan 5 blows the gas in the first cavity 1011 into the interior of the second cavity 1012. The cold air in the second cavity 1012 will enter the cooling pipe 3, and then be distributed to multiple insertion tubes 201 through the cooling pipe 3, so that the cold air enters each loading box 2 to cool the building material sample. The gas in the loading box 2 will flow from the insertion tube 202 to the return cooling pipe 4, and then be sent into the first cavity 1011 through the return cooling pipe 4, thereby realizing the circulation of gas and improving the cooling efficiency.

[0058] Example 3

[0059] like Figure 2 and Figures 6-8 As shown, based on the above embodiments, in this embodiment, each placement cavity 102 on the cooling pipe 3 is provided with a connecting component 8, which includes a sleeve 801 and is fixed on the cooling pipe 3.

[0060] When the loading box 2 is placed into the placement cavity 102, the insertion tube 201 is inserted into the inside of the sleeve 801, and the inner cavity of the loading box 2 is connected to the cooling pipe 3.

[0061] The return cooling pipe 4 is equipped with multiple connecting components 2 9. The function of the connecting components 2 9 is the same as that of the connecting components 1 8. When the loading box 2 is placed into the placement cavity 102, the inner cavity of the loading box 2 will also be connected to the return cooling pipe 4 under the cooperation of the insertion tube 202 and the connecting components 2 9.

[0062] The conductive component 8 also includes a sliding core 802, which slides inside the sleeve 801 via a spring 805. The sliding core 802 has a vertical groove 803 and a T-shaped groove 804.

[0063] When the loading box 2 is placed into the placement cavity 102, the insertion tube 201 pushes the sliding core 802 and inserts into the sleeve 801. At this time, the cooling pipe 3 is connected to the insertion tube 201 through the T-groove 804. At this time, the cooling pipe 3 can not only deliver cold to the loading box 2 through the insertion tube 201, but also deliver cold air downwards.

[0064] like Figure 7 As shown, when the insertion tube 201 is inserted into the sleeve 801, the insertion tube 201 connects with one opening of the T-slot 804. Under the pressure of the insertion tube 201, the other two openings of the T-slot 804 connect to the cooling pipe 3, keeping the cooling pipe 3 unobstructed.

[0065] like Figure 6 As shown, when the loading box 2 is pulled out of the placement cavity 102, the spring 805 pushes the sliding core 802 to reset. At this time, the cooling pipe 3 is connected through the vertical groove 803. The vertical groove 803 on the sliding core 802 can connect the cooling pipe 3 and also block the corresponding sleeve 801 to prevent cold air from overflowing.

[0066] The second conductive component 9 on the return cooling pipe 4 adopts the same sleeve and sliding core structure as the first conductive component 8. When the loading box 2 is inserted, the second insertion tube 202 triggers the sliding core displacement, so that the return cooling pipe 4 is connected to the inside of the loading box 2, and the gas flows back to the first cavity 1011 through the serpentine channel.

[0067] Two guide rods 10 are symmetrically fixedly connected to the sliding core 802, and two lugs 8011 are fixedly connected to the side wall of the sleeve 801. The two guide rods 10 slide on the two lugs 8011 respectively. A spring 805 is sleeved on the guide rod 10. One end of the spring 805 abuts against the side wall of the lug 8011, and the other end of the spring 805 abuts against the end of the guide rod 10.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for testing the frost resistance of building materials, characterized in that, include: The cabinet (1) has a cooling chamber (101) and multiple placement chambers (102) inside; Multiple loading boxes (2) slide in multiple placement cavities (102) respectively, and each loading box (2) is connected to a first insertion tube (201) and a second insertion tube (202) at its rear end; The upper ends of the cooling pipe (3) and the return cooling pipe (4) are connected to the refrigeration chamber (101); When the loading box (2) slides into the placement cavity (102), the first insertion tube (201) and the second insertion tube (202) are connected to the cooling pipe (3) and the cooling return pipe (4) respectively.

2. The frost resistance testing equipment for building materials according to claim 1, characterized in that, The cooling chamber (101) includes a first chamber (1011) and a second chamber (1012). An opening (1013) is provided between the first chamber (1011) and the second chamber (1012), and a fan (5) is provided inside the opening (1013) for blowing the gas in the first chamber (1011) into the second chamber (1012). The first cavity (1011) is connected to the return cooling pipe (4), and the second cavity (1012) is connected to the supply cooling pipe (3).

3. The frost resistance testing equipment for building materials according to claim 2, characterized in that, A power shaft (6) is connected to the rotating shaft of the fan (5). The end of the power shaft (6) extends to the outside of the cabinet (1). A motor (7) is fixed on the cabinet (1). The output shaft of the motor (7) is connected to the outer end of the power shaft (6) by a belt.

4. The frost resistance testing equipment for building materials according to claim 1, characterized in that, Each placement cavity (102) on the cooling pipe (3) is provided with a connecting component (8), the connecting component (8) includes a sleeve (801), and the sleeve (801) is fixed on the cooling pipe (3); When the loading box (2) is placed into the placement cavity (102), the insertion tube (201) is inserted into the inside of the sleeve (801), and the inner cavity of the loading box (2) is connected to the cooling pipe (3); Among them, the return cooling pipe (4) is provided with multiple conductive components two (9), and the function of conductive components two (9) is the same as that of conductive components one (8).

5. The frost resistance testing equipment for building materials according to claim 4, characterized in that, The first conductive component (8) further includes a sliding core (802), which slides inside the sleeve (801) via a spring (805). The sliding core (802) is provided with a vertical groove (803) and a T-shaped groove (804). When the loading box (2) is placed into the placement cavity (102), the cooling pipe (3) is connected to the insertion tube (201) through the T-slot (804); When the loading box (2) is pulled out of the placement cavity (102), the cooling pipe (3) is connected through the vertical groove (803).

6. The frost resistance testing equipment for building materials according to claim 5, characterized in that, Two guide rods (10) are symmetrically fixedly connected to the sliding core (802), and two lugs (8011) are fixedly connected to the side wall of the sleeve (801). The two guide rods (10) slide on the two lugs (8011) respectively. A spring (805) is sleeved on the guide rod (10). One end of the spring (805) abuts against the side wall of the lug (8011), and the other end of the spring (805) abuts against the end of the guide rod (10).

7. The frost resistance testing equipment for building materials according to claim 2, characterized in that, The loading box (2) is provided with a sieve plate (203) for supporting building material samples. The interior of the loading box (2) and below the sieve plate (203) is divided into a serpentine channel by a partition plate (204). The first insertion tube (201) and the second insertion tube (202) are respectively connected to the two ends of the serpentine channel.

8. The frost resistance testing equipment for building materials according to claim 1, characterized in that, The loading box (2) is provided with a lock (11) at the front end.

9. The frost resistance testing equipment for building materials according to claim 2, characterized in that, The cavity 2 (1012) is equipped with a cooling module (12).

10. The frost resistance testing equipment for building materials according to claim 1, characterized in that, A temperature control module (13) is installed on the front side wall of the cabinet (1).

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