Granular test sample temperature adjusting device

Abstract

The utility model relates to the technical field of engineering tests, and particularly provides a granular test sample temperature adjusting device. The heating box comprises a box body, a containing space is formed in the box body, a heating assembly is arranged on the side wall of the box body, and an air outlet is formed in the top of the box body; the tray is detachably mounted in the box body, and the containing space is divided into an adjusting cavity and a connecting cavity by the tray; a conical groove is formed in the tray, an air inlet is formed in the tray, and the center line of the air inlet coincides with the center line of the conical groove; the outlet end of the connecting pipe is connected with the air inlet, and the other end of the connecting pipe is used for being connected with an external air source. According to the invention, the temperature of a powdery or granular test sample in the tray can be quickly adjusted to the test temperature.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of engineering test, in particular to a granular test sample temperature adjusting device. BACKGROUND

[0002] In engineering test, there is a high requirement for test temperature, for example, it is usually required to be carried out at a temperature of 20 degrees Celsius, and the allowed error is usually 2 degrees Celsius, that is, the temperature condition of the test needs to be controlled within the range of 18 to 22 degrees Celsius. For powdery or granular test samples such as cement, rock debris and cementitious materials, the temperature needs to be adjusted to the corresponding temperature range before the test.

[0003] Since the powdery and granular samples have poor thermal conductivity, the samples used for the test need to be placed in a test room with a temperature controller for temperature adjustment one day in advance, which will lead to an increase in the cost of test electricity and a decrease in test efficiency, and this phenomenon is more prominent in winter.

[0004] In summary, how to adjust the temperature of the powdery or granular test sample is one of the important problems to be solved in the field. CONTENT OF THE INVENTION

[0005] The present disclosure is proposed in view of the above problems. The present disclosure provides a granular test sample temperature adjusting device.

[0006] According to one aspect of the present disclosure, a granular test sample temperature adjusting device is provided, which comprises,

[0007] a box body having an accommodation space inside, a heating assembly provided on the side wall of the box body, and an air outlet provided on the top of the box body;

[0008] a tray which is detachably installed in the box body and separates the accommodation space into an adjusting cavity and a connecting cavity, a conical groove provided on the tray, and an air inlet provided on the tray, wherein the center line of the air inlet coincides with the center line of the conical groove;

[0009] a connecting pipe, the outlet end of which is connected with the air inlet, and the other end of which is used for connecting with an external air source.

[0010] The granular test sample temperature adjusting device as described above, wherein, optionally, a filter screen is further provided at the air outlet.

[0011] The granular test sample temperature adjusting device as described above, wherein, optionally, the connecting pipe is an L-shaped pipe, the outlet end of which is inserted into the air inlet, and the outlet end is flush with the upper end of the air inlet.

[0012] The outer end of the connecting pipe is provided with a quick connector for connecting with an external gas source.

[0013] The granular test sample temperature adjusting device as described above, wherein, optionally, the outlet end of the connecting pipe is provided with an anti-backflow component for preventing the test sample from entering the connecting pipe.

[0014] The granular test sample temperature adjusting device as described above, wherein, optionally, the anti-backflow component comprises an annular limiting groove arranged on the inner wall of the outlet end of the connecting pipe, a sliding block slidingly arranged in the outlet end, a spring seat connected with the inner wall of the connecting pipe, and an elastic element.

[0015] The sliding block is in sliding sealing connection with the outlet end of the connecting pipe, and the sliding block is provided with an inner cavity in communication with the connecting pipe, and the side wall of the connecting pipe is provided with a side hole in communication with the inner cavity.

[0016] One end of the elastic element is fixedly connected with the sliding block, and the other end is fixedly connected with the spring seat.

[0017] The outer periphery of the sliding block is provided with a retaining ring, and the retaining ring is located in the annular limiting groove.

[0018] The granular test sample temperature adjusting device as described above, wherein, optionally, one end of the sliding block towards the tapered groove is in a tapered or hemispherical structure.

[0019] The granular test sample temperature adjusting device as described above, wherein, optionally, the anti-backflow component has at least two working states, in a first working state, the sliding block is contracted to a first position under the action of the elastic element, and the side hole is blocked by the connecting pipe; in a second working state, the sliding block slides to a second position under the action of gas pressure towards the direction of the tapered groove, and the side hole is exposed.

[0020] The granular test sample temperature adjusting device as described above, wherein, optionally, further comprising a door body, one side of the box body is provided with a door hole, and the door body is in sliding fit connection with the box body.

[0021] The door body can block the door hole, and together with the box body and the tray, the door body can form the adjusting cavity.

[0022] The granular test sample temperature adjusting device as described above, wherein, optionally, the box body is provided with a first sliding groove, and the first sliding groove extends to the door hole.

[0023] One end of the first sliding groove close to the door hole is provided with a flared structure.

[0024] The granular test sample temperature adjusting device as described above, wherein, optionally, a second sliding groove is arranged on the outer side of the box, and the second sliding groove is arranged on both sides of the door hole;

[0025] A stopper is arranged at the lower end of the second sliding groove.

[0026] The door body is a plate member, and the door body is in sliding fit connection with the second sliding groove, and the door body can block the door hole.

[0027] The present disclosure can rapidly adjust the temperature of the test sample in the form of powder or granules in the tray to the test temperature by arranging a tray in the box, arranging a conical groove in the tray, arranging an air inlet at the bottom of the conical groove, and blowing air with the temperature being the test condition temperature into the air inlet through the connecting pipe.

[0028] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further explanation of the subject technology claimed. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:

[0030] Figure 1 is a schematic diagram of the overall structure of the present disclosure;

[0031] Figure 2 is a schematic diagram of the mounting structure of the box and the tray according to the present disclosure;

[0032] Figure 3 is a sectional view of the granular test sample temperature adjusting device according to the present disclosure;

[0033] Figure 4 is a schematic diagram of the structure of the tray according to the present disclosure;

[0034] Figure 5 is a schematic diagram of the structure of the connecting pipe according to the present disclosure;

[0035] Figure 6 is a schematic diagram of the structure of the connecting pipe in the first working state according to the present disclosure;

[0036] Figure 7 is a schematic diagram of the structure of the connecting pipe in the second working state according to the present disclosure;

[0037] Figure 8is a sectional view of the connecting pipe in the second working state according to the present disclosure.

[0038] Explanation of reference signs:

[0039] 1 - box, 2 - tray, 3 - connecting pipe, 4 - filter screen, 5 - door body;

[0040] 11 - accommodating space, 12 - heating assembly, 13 - air outlet, 14 - adjusting cavity, 15 - connecting cavity, 16 - door hole, 17 - first sliding groove, 18 - second sliding groove, 19 - stop block;

[0041] 21 - conical groove, 22 - air inlet;

[0042] 31 - outlet end, 32 - anti-backflow assembly, 33 - annular limiting groove;

[0043] 321 - sliding block, 322 - spring seat, 323 - elastic element, 324 - inner cavity, 325 - side hole, 326 - stop ring. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present disclosure more obvious, the following will describe the example embodiments according to the present disclosure in detail with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all the embodiments of the present disclosure, and it should be understood that the present disclosure is not limited by the example embodiments described here.

[0045] In order to solve the problems pointed out in the background art, the present disclosure proposes the following technical solutions. Please refer to Figures 1 to 8 The present disclosure proposes a granular test sample temperature adjusting device, which comprises a box 1, a tray 2 and a connecting pipe 3. The box 1 is used to form the support of the whole device, the tray 2 is detachably connected with the box 1, and the tray 2 is used to hold the sample to be tested. The connecting pipe 3 is used to introduce air of suitable temperature into the inside of the test sample on the tray 2. In specific implementation, the air of suitable temperature can be the temperature under the test condition. Specifically, the temperature adjusting device can be used to adjust the temperature of the test sample under the test environment.

[0046] Specifically, please refer to Figures 1 to 3 The box 1 has an accommodating space 11, the sidewall of the box 1 is provided with a heating assembly 12, and the top of the box 1 is provided with an air outlet 13. The accommodating space 11 is used to place the test sample to be adjusted in temperature. The heating assembly 12 can be determined whether to start according to actual needs. In specific implementation, the heating assembly 12 can be an electric heating wire embedded in the sidewall of the box 1, so as to determine whether to perform electric heating according to actual needs. The working principle and specific connection circuit of the electric heating wire belong to the prior art for those skilled in the art, and will not be described here.

[0047] Please refer to Figure 3 and Figure 4 , the tray 2 is detachably mounted in the box 1, and the accommodation space 11 is divided into an adjusting cavity 14 and a connecting cavity 15; the tray 2 is provided with a tapered groove 21, the tray 2 is provided with an air inlet 22, and the center line of the air inlet 22 coincides with the center line of the tapered groove 21. In specific implementation, the connection between the tray 2 and the box 1 can be achieved by providing a support strip in the box 1, or can be connected by means such as clamping. In specific implementation, the heating assembly 12 can be provided on the side wall of the adjusting cavity 14. In actual application, a temperature sensor can be provided in the adjusting cavity 14 to facilitate accurate control of the temperature of the heating assembly 12 and rapid adjustment of the temperature in the adjusting cavity 14 to the test temperature. The use of temperature sensors is a prior art, and can be implemented by those skilled in the art, which will not be described here.

[0048] Please refer to Figures 3 to 8 , the outlet end 31 of the connecting pipe 3 is connected with the air inlet 22, and the other end is used for connecting with an external air source. In specific implementation, the external air source can be a fan, and in the test environment, the fan is used to blow the connecting pipe 3 to realize blowing of the powder or granular test sample, so that the temperature of the test sample can be quickly adjusted to the required temperature.

[0049] In use, the test chamber is first adjusted to the test temperature condition, the granular or powder test sample to be adjusted in temperature is placed in the tray 2 in the test chamber, the connecting pipe 3 is connected with the external air source, specifically can be connected with the fan or air pump, the air in the test chamber is pumped into the connecting pipe 3, and the air is blown into the tray 2 through the connecting pipe 3 to adjust the temperature of the granular or powder test sample. According to actual needs, the air flow speed in the connecting pipe 3 can be controlled to make the test sample be blown up or not. By increasing the contact area of the air flow with the surface of the test sample, the adjustment speed of the test sample can be greatly improved.

[0050] In specific implementation, in order to prevent the powder or smaller test sample particles from being taken away by the air flow, a filter screen 4 is further included in the embodiment, and the filter screen 4 is arranged at the air outlet 13. Further, the top of the box 1 can be arranged to gradually decrease in cross section along the direction from bottom to top, and the air outlet 13 is arranged at the highest position to increase the distance between the tray 2 and the air outlet 13, which is beneficial to the test sample to fall under the action of its own gravity during being blown up.

[0051] Please refer to Figures 3 to 8In a specific implementation, in order to facilitate the installation of the connecting pipe 3, the connecting pipe 3 is an L-shaped pipe, the outlet end 31 of the connecting pipe 3 is inserted into the air inlet 22, and the outlet end 31 is flush with the upper end of the air inlet 22. In a specific implementation, the connecting pipe 3 and the air inlet 22 are in interference fit or connected by threads. In a specific implementation, in order to facilitate the connection between the connecting pipe 3 and the air inlet 22, a clamping portion is fixed on the connecting pipe 3, which is a columnar structure with a 6-sided cross section, so as to be clamped by a wrench or pliers. The outer end of the connecting pipe 3 is provided with a quick connector for connecting with an external air source.

[0052] In a specific implementation, in order to prevent the test sample from entering the connecting pipe 3, the outlet end 31 of the connecting pipe 3 is provided with an anti-backflow component 32 for preventing the test sample from entering the connecting pipe 3. In a specific implementation, the anti-backflow component 32 can be a check valve, but there is still a small amount of test sample entering the connecting pipe 3 when a common check valve is used. Therefore, the anti-backflow component 32 is further designed in this embodiment. Specifically, the anti-backflow component 32 includes an annular limiting groove 33 arranged on the inner wall of the outlet end 31 of the connecting pipe 3, a sliding block 321 slidingly arranged in the outlet end 31, a spring seat 322 connected with the inner wall of the connecting pipe 3, and an elastic element 323. By cooperating the sliding block 321 with the connecting pipe 3, the outlet end 31 of the connecting pipe 3 can be sealed by the sliding block 321 before the device is started or after the device is stopped, and when air is introduced, the air enters the conical groove 21 through the sliding block 321.

[0053] Specifically, the sliding block 321 is in sliding sealing connection with the outlet end 31 of the connecting pipe 3, the sliding block 321 is provided with an inner cavity 324 in communication with the connecting pipe 3, and the side wall of the connecting pipe 3 is provided with a side hole 325 in communication with the inner cavity 324. That is, in some cases, when the side hole 325 is located outside the connecting pipe 3, air can enter the conical groove 21 through the connecting pipe 3, the inner cavity 324 and the side hole 325 in sequence.

[0054] One end of the elastic element 323 is fixedly connected with the sliding block 321, and the other end is fixedly connected with the spring seat 322. By arranging the elastic element 323, the sliding block 321 can be located in the connecting pipe 3 to block the outlet end 31 of the connecting pipe 3 in a natural state. When the air pressure in the connecting pipe 3 is high, the elastic force of the elastic element 323 can be overcome to expose the side hole 325 on the sliding block 321 from the connecting pipe 3.

[0055] In the embodiment, in order to limit the sliding range of the sliding block 321, prevent the sliding block 321 from falling off the connecting pipe 3 or sliding into the connecting pipe 3 too much, a stop ring 326 is arranged on the outer periphery of the sliding block 321 and located in the annular limiting groove 33. In the embodiment, in order to facilitate installation, the outlet end of the connecting pipe 3 can be made into a split structure to facilitate the installation of the sliding block 321.

[0056] In the embodiment, in order to reduce the air pressure required when the sliding block 321 is lifted upward, the sliding block 321 is tapered or hemispherical at one end towards the tapered groove 21.

[0057] In some implementations, the anti-backflow assembly 32 has at least two working states. In the first working state, the sliding block 321 is contracted to a first position under the action of the elastic element 323, and the side hole 325 is blocked by the connecting pipe 3. In the second working state, the sliding block 321 slides to a second position in the direction of the tapered groove 21 under the action of the gas pressure, and the side hole 325 is exposed.

[0058] In use, when the connecting pipe 3 is connected to an external air source, the sliding block 321 overcomes the elastic force of the elastic element 323 under the action of the air pressure, and slides outward until the second position, at which time the side hole 325 is exposed, and the air enters the interior of the test sample through the connecting pipe 3, the inner cavity of the sliding block 321, and the side hole 325, and the air is discharged from the gaps of the test sample or blows up the test sample to achieve the effect of quickly adjusting the temperature of the test sample. Especially in winter, it can reduce the electricity consumption of the laboratory and improve the experimental efficiency. In the embodiment, the air exhaust direction of the side hole 325 is horizontal, which is matched with the shape of the tapered groove 21 to make the air discharged outward, and the air outlet 13 is arranged at the middle position of the top, so that the powders or particles carried by the air flow are more easily to fall down under the action of their own gravity.

[0059] In the embodiment, in order to prevent the test sample from splashing, it is better to seal the adjusting cavity 14 except the connecting pipe 3 and the air outlet 13. Specifically, a door body 5 is further included, and a door hole 16 is arranged on one side of the box body 1, and the door body 5 is in sliding fit connection with the box body 1.

[0060] The door body 5 can block the door hole 16 and together with the box body 1 and the tray 2 to form the adjusting cavity 14. By sliding fit connection of the door body 5 and the box body 1, it is beneficial to form a seal at the connection. For example, in the embodiment, a rubber pad can be arranged at the edge where the door body and the box body 1 contact.

[0061] In specific implementation, the connection mode of the tray 2 can be various, and in the present disclosure, the connection of the tray 2 and the box 1 is realized by using a sliding groove connection mode. Specifically, the box 1 is provided with a first sliding groove 17 extending to the door opening 16, and the first sliding groove 17 is provided with a flared structure at one end close to the door opening 16. By providing the flared structure, the tray 2 is facilitated to be put in.

[0062] The sliding mode between the box 1 and the door body 5 can be various, such as left-right sliding, and in the present disclosure, the door body 5 and the box 1 slide up and down. Specifically, the outer side of the box 1 is provided with a second sliding groove 18 located on both sides of the door opening 16, and the lower end of the second sliding groove 18 is provided with a stop block 19. The stop block 19 is used to limit the position of the door body 5, and when the lower edge of the door body 5 abuts against the stop block 19, the door body 5 blocks the door opening 16. The door body 5 is a plate member, and the door body 5 is connected in sliding fit with the second sliding groove 18, and the door body 5 can block the door opening 16.

[0063] In specific implementation, in order to facilitate the connection of the connecting pipe 3 and the external air source, the box 1 is provided with an opening communicating with the connecting cavity 15.

[0064] In specific implementation, in order to facilitate carrying, the side surface of the box 1 is provided with a handle, and in some implementation modes, in order to facilitate the movement of the box 1, a roller can be arranged at the bottom of the box 1.

[0065] In specific use, the laboratory temperature condition is adjusted to the required temperature condition for the test, the tray is connected with the connecting pipe 3, the test sample to be adjusted in temperature is placed on the tray 2, and then the tray is put into the box 1 along the first sliding groove 17; and the door body 5 is closed. The connecting pipe 3 is communicated with the external air source, the external air source is opened, the air in the laboratory is pumped into the connecting pipe 3, and the air flow pushes open the sliding block 321 after passing through the connecting pipe 3, so that the side hole 325 is exposed. After the air flow flows out of the side hole 325, it enters the inside of the test sample and flows out of the gap of the sample. In actual application, the sample can also be blown up by a larger air flow. In order to increase the sufficient contact of the sample and the air flow, the temperature of the test sample is quickly adjusted. In some cases, the heating assembly can be opened according to actual needs.

[0066] In some cases, after the box is cleaned, the box 1 can be quickly dried by opening the heating assembly.

[0067] The above describes the basic principles of the present disclosure in conjunction with specific embodiments, but it should be noted that the advantages, benefits, effects and the like mentioned in the present disclosure are only examples and are not limiting, and these advantages, benefits, effects and the like cannot be considered as necessary for each embodiment of the present disclosure. In addition, the specific details of the above disclosure are only for the purpose of example and understanding, and are not limiting, and the above details do not limit the present disclosure to be necessarily implemented with the above specific details.

[0068] The block diagrams of the devices, apparatuses, equipment, systems involved in the present disclosure are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations shown in the block diagrams must be connected, arranged, configured. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0069] In addition, as used herein, "or" used in the list of items preceded by "at least one of" means a disjunctive list, such that, for example, a list of "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the phrase "example of" does not mean the example described is preferred or better than other examples.

[0070] It should also be noted that in the systems and methods of the present disclosure, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalents of the present disclosure.

[0071] Various changes, substitutions and alterations can be made to the techniques described herein without departing from the teachings of the technology defined by the appended claims. Also, the scope of the claims of the present disclosure is not limited to the specific aspects of the process, machine, manufacture, composition of matter, means, methods and acts of the above described. Processes, machines, manufacture, compositions of matter, means, methods or acts currently existing or later developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Accordingly, the appended claims include within their scope such processes, machines, manufacture, compositions of matter, means, methods or acts.

[0072] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other aspects without departing from the scope of the disclosure. Thus, the present disclosure is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0073] The above description has been presented to enable any person skilled in the art to make or use the disclosure. Furthermore, the purpose of the above description is not intended to limit the embodiments of the present disclosure to the form disclosed herein. Although various example aspects and embodiments have been discussed above, those of ordinary skill in the art will appreciate a variety of modifications, alternatives, permutations, additions, and sub-combinations of the described aspects and embodiments.

Claims

1. A granular test sample temperature conditioning device, characterized by, The utility model relates to a kind of test sample conditioning device, including, Box (1), the box (1) is with accommodating space (11) inside, the side wall of the box (1) is equipped with heating assembly (12), the top of the box (1) is equipped with air outlet (13); Tray (2), the tray (2) is detachably installed in the box (1), and the accommodating space (11) is divided into adjusting cavity (14) and connecting cavity (15);The tray (2) is equipped with conical groove (21), the tray (2) is equipped with air inlet (22), and the center line of the air inlet (22) coincides with the center line of the conical groove (21); Connecting pipe (3), the outlet end of the connecting pipe is connected with the air inlet (22), and the other end is used to be connected with external gas source.

2. The granular test sample temperature conditioning apparatus of claim 1, wherein, It also includes a filter screen (4) provided at the air outlet (13).

3. The granular test sample temperature conditioning apparatus of claim 1, wherein, The outlet end (31) of the connecting pipe (3) is inserted into the air inlet (22), and the outlet end (31) is flush with the upper end of the air inlet (22); The outer end of the connecting pipe (3) is provided with a quick connector for connecting with the external gas source.

4. A particulate test sample temperature conditioning device as claimed in claim 3, wherein, The outlet end (31) of the connecting pipe (3) is provided with an anti-backflow assembly (32) for preventing the test sample from entering the connecting pipe (3).

5. A particulate test sample temperature conditioning device as claimed in claim 4, wherein, The anti-backflow assembly (32) includes an annular limiting groove (33) provided on the inner wall of the outlet end (31) of the connecting pipe (3), a sliding block (321) slidingly provided in the outlet end (31), a spring seat (322) connected with the inner wall of the connecting pipe (3), and an elastic element (323). The sliding block (321) is in sliding sealing connection with the outlet end (31) of the connecting pipe (3), and the sliding block (321) is provided with an inner cavity (324) in communication with the connecting pipe (3), and the side wall of the connecting pipe (3) is provided with a side hole (325) in communication with the inner cavity (324). One end of the elastic element (323) is fixedly connected with the sliding block (321), and the other end is fixedly connected with the spring seat (322). The outer periphery of the sliding block (321) is provided with a stop ring (326), and the stop ring (326) is located in the annular limiting groove (33).

6. A particulate test sample temperature conditioning device as claimed in claim 5, wherein, The end of the sliding block (321) towards the conical groove (21) is in conical or hemispherical structure.

7. The granular test sample temperature conditioning apparatus of claim 5, wherein, The anti-backflow assembly (32) has at least two working states, in the first working state, the sliding block (321) is contracted to the first position under the action of the elastic element (323), and the side hole (325) is blocked by the connecting pipe (3);In the second working state, the sliding block (321) slides to the second position in the direction of the conical groove (21) under the action of gas pressure, and the side hole (325) is exposed.

8. The granular test sample temperature conditioning apparatus of claim 1, wherein, It also includes a door body (5), one side of the box (1) is provided with a door hole (16), and the door body (5) is in sliding fit connection with the box (1). The door body (5) can block the door hole (16) and cooperates with the box body (1) and the tray (2) to form the adjusting cavity (14).

9. A particulate test sample temperature conditioning device as claimed in claim 8, wherein, A first sliding groove (17) is arranged in the box body (1) and extends to the door hole (16); An expanding structure is arranged at one end of the first sliding groove (17) close to the door hole (16).

10. A particulate test sample temperature conditioning device as claimed in claim 9, wherein, A second sliding groove (18) is arranged on the outer side of the box body (1) and is located on both sides of the door hole (16); A stop block (19) is arranged at the lower end of the second sliding groove (18); The door body (5) is a plate member, is in sliding fit connection with the second sliding groove (18), and can block the door hole (16).

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