A concrete test piece curing device

Abstract

The utility model discloses a kind of concrete test piece curing devices, including cabinet, several storage chambers are provided in cabinet, gas adjusting chamber is installed at the top of cabinet, storage assembly is slidably connected in cabinet to push or pull concrete test piece into or out of storage chamber, air inlet pipe and air return pipe are provided in cabinet, the gas of standard temperature humidity in gas adjusting chamber enters storage chamber through air inlet pipe, and after passing through air return pipe, it flows back to gas adjusting chamber, air inlet pipe and air return pipe are respectively provided with separate linkage opening and closing assembly on the air vent in storage chamber, linkage opening and closing assembly is pushed and pulled with storage assembly to control the automatic opening and closing of air vent.Each storage chamber is communicated with gas adjusting chamber by air inlet pipe and air return pipe, and the air vent opening and closing of air inlet pipe and air return pipe is controlled by linkage opening and closing assembly, when taking and placing a group of concrete test pieces, it will not affect the remaining concrete test pieces.

Description

Technical Field

[0001] This utility model relates to the field of building material curing technology, and in particular to a concrete specimen curing device. Background Technology

[0002] The performance of concrete is directly related to the quality and safety of buildings. In order to accurately evaluate the various performance indicators of concrete, it is necessary to cure and test concrete specimens. Currently, the main method is to place concrete specimens in curing devices and control the temperature and humidity inside the devices to ensure the stability of curing conditions.

[0003] Chinese patent CN222609968U discloses a drawer-type intelligent curing cabinet for concrete specimens, which uses spray heads in each drawer to ensure humidity and a fan on the top of the curing cabinet to improve air circulation and ensure temperature uniformity inside the curing cabinet.

[0004] However, in this technical solution, spraying water directly onto the concrete specimen using a sprinkler head can only ensure the humidity of the top of the concrete specimen. The humidity of the sides of the concrete specimen is difficult to control, and the humidity of the bottom of the concrete specimen is even more difficult to control. Although the curing cabinet has a drawer-type structure, the internal space is interconnected. When taking concrete specimens out and putting them in, the gas inside the curing cabinet will circulate with the air, causing changes in the temperature and humidity of the gas inside the curing cabinet, which will affect the curing of other concrete specimens. In addition, the curing cabinet requires energy to readjust the temperature and humidity. Utility Model Content

[0005] In view of the above-mentioned prior art, the present invention provides a concrete specimen curing device. The gas temperature and humidity in the gas conditioning chamber are adjusted to the standard. The standard gas is delivered to the storage chamber through a pipeline. The inlet and outlet pipes in the storage chamber are equipped with a linkage opening and closing component. As the placement component is pulled out and pushed in, it drives the opening and closing of the air inlet and outlet pipes, effectively preventing the gas in the curing cabinet from circulating with the air, ensuring the stability of the curing environment for concrete specimens, and saving energy consumption.

[0006] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0007] A concrete specimen curing device includes a cabinet with several storage chambers inside. A gas regulating chamber is installed on the top of the cabinet. A storage component is slidably connected inside the cabinet to push or pull concrete specimens into or out of the storage chambers. An air inlet pipe and an air return pipe are provided inside the cabinet. The two ends of the air inlet pipe are connected to the storage chambers and the gas regulating chamber, respectively. The two ends of the air return pipe are also connected to the storage chambers and the gas regulating chamber, respectively. Gas at standard temperature and humidity in the gas regulating chamber enters the storage chamber through the air inlet pipe and then flows back to the gas regulating chamber through the air return pipe. The air inlet pipe and the air return pipe are each equipped with a separate linkage opening and closing component at the air vents in the storage chambers. The linkage opening and closing component controls the automatic opening and closing of the air vents as the storage component is pushed or pulled.

[0008] Furthermore, the linkage opening and closing assembly includes a first blind hole tube, a second blind hole tube slidably connected inside the first blind hole tube, a horizontal first through hole groove on the first blind hole tube, a horizontal second through hole groove on the second blind hole tube, a stop bar fixedly connected to the outer wall of the second blind hole tube, the stop bar passing through the first through hole groove and sliding along the first through hole groove to control the overlap of the first through hole groove and the second through hole groove, a lever is provided on the side of the storage assembly to push the movement of the stop bar, and a first spring is fixedly connected between the inner wall of the sealed end of the first blind hole tube and the outer wall of the sealed end of the second blind hole tube.

[0009] Furthermore, the storage assembly includes a sliding plate that is slidably connected to the bottom of the storage chamber. A panel is vertically installed on the end of the sliding plate away from the cabinet, and the panel seals the opening of the storage chamber to form a sealed space. Several support rods are fixedly connected to the upper surface of the sliding plate, and a support plate is fixedly connected to the end of the support rod away from the sliding plate to store concrete specimens. Both sides of the support plate are connected to levers to move the stop bars.

[0010] Furthermore, the support rod includes a sleeve, the bottom of which is fixedly connected to the upper surface of the sliding plate, and a sliding rod is slidably connected inside the sleeve. The end of the sliding rod away from the sleeve is fixedly connected to the bottom surface of the support plate. A second spring is provided inside the sleeve, and the two ends of the second spring are fixedly connected to the sleeve and the sliding rod, respectively.

[0011] Furthermore, a through groove is provided on the sleeve, and a limit rod is fixedly connected to the slide rod. The limit rod passes through the through groove and slides within the through groove so that the elevation of the lever on the support plate drops to be consistent with the stop rod.

[0012] Furthermore, the air inlets of the air inlet and air outlet are located at both ends along the length of the storage chamber to improve gas flow within the storage chamber.

[0013] Furthermore, the inner wall surface of the storage chamber is filled with an insulation layer.

[0014] Furthermore, the support plate is provided with grid holes that run vertically to ensure the curing stability of the bottom surface of the concrete specimen.

[0015] Furthermore, a limit frame is provided on the upper surface of the support plate to restrict the movement of the concrete specimen, and an isolation rod is also provided on the upper surface of the support plate to ensure the spacing between adjacent concrete specimens.

[0016] The beneficial effects of this utility model are as follows: by using the device in the gas regulating chamber to regulate the gas to the standard temperature and humidity, these gases are transported into each storage chamber, and the various surfaces of the concrete specimens in the storage chamber can be cured under the same curing conditions, ensuring stable curing.

[0017] The levers on both sides of the storage assembly drive the linkage opening and closing components to automatically open and close the air inlet and return pipes. When the storage assembly is pulled out of the storage chamber, the air inlets and return pipes automatically close, preventing the gas inside the curing cabinet from communicating with the outside air, thus ensuring that the curing of other concrete specimens is not affected. When the storage assembly is pushed into the storage chamber, the air inlets and return pipes automatically open, allowing gas under standard curing conditions to enter the air inlet pipe, while the air is expelled from the return pipe into the gas conditioning chamber for temperature and humidity readjustment.

[0018] The sliding plate and support plate of the storage assembly are connected by an elastic telescopic rod. When no concrete specimen is placed, the support plate is higher and the lever is higher, so it will not contact the baffle of the linkage opening and closing assembly. The air inlet and return pipe vents in the storage chamber are always closed, and the gas with standard temperature and humidity in the gas conditioning chamber will not enter the storage chamber, which can reduce the volume that needs to be maintained for curing. When a concrete specimen is placed on the storage assembly, the height of the support plate is lowered, and the height of the lever is lowered to match the baffle. When the storage assembly is pushed inward, the air inlet and return pipe vents open, regulating the gas environment in the storage chamber. When the storage assembly is pulled outward to remove the concrete specimen, the air inlet and return pipe vents close, so as not to affect other storage chambers. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a concrete specimen curing device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the storage chamber of a concrete specimen curing device according to the present invention;

[0021] Figure 3 This is a cross-sectional view of the linkage opening and closing component of a concrete specimen curing device according to this utility model;

[0022] Figure 4 This is a schematic diagram of the placement component of a concrete specimen curing device according to the present invention;

[0023] Figure 5 This is a schematic diagram of a support rod for a concrete specimen curing device according to the present invention.

[0024] Explanation of reference numerals: 1. Cabinet; 2. Gas regulating chamber; 3. Storage chamber; 4. Storage assembly; 5. Air inlet pipe; 6. Air return pipe; 7. Linkage opening and closing assembly; 8. Sliding plate; 9. Support plate; 10. Support rod; 11. Limiting frame; 12. Grille hole; 13. Toggle lever; 14. First blind hole pipe; 15. Second blind hole pipe; 16. First through hole groove; 17. Second through hole groove; 18. Stop bar; 19. First spring; 20. Panel; 21. Sleeve; 22. Slide rod; 23. Second spring; 24. Through groove; 25. Limiting rod. Detailed Implementation

[0025] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0026] Combined with reference to the appendix Figures 1 to 5This utility model provides a concrete specimen curing device, including a cabinet 1, which has several storage chambers 3. A gas regulating chamber 2 is installed on the top of the cabinet 1. A storage component 4 is slidably connected inside the cabinet 1 to push or pull the concrete specimens out of the storage chambers 3. An air inlet pipe 5 and an air return pipe 6 are provided inside the cabinet 1. The two ends of the air inlet pipe 5 are connected to the storage chambers 3 and the gas regulating chamber 2, respectively. The two ends of the air return pipe 6 are connected to the storage chambers 3 and the gas regulating chamber 2, respectively. Gas with standard temperature and humidity in the gas regulating chamber 2 enters the storage chambers 3 through the air inlet pipe 5 and then flows back to the gas regulating chamber 2 through the air return pipe 6. The air inlet pipe 5 and the air return pipe 6 are respectively provided with separate linkage opening and closing components 7 on the vents in the storage chambers 3. The linkage opening and closing components 7 control the automatic opening and closing of the vents as the storage component 4 is pushed or pulled. During use, the gas in the gas conditioning chamber 2 reaches the standard curing conditions under the action of the temperature and humidity control devices. The standard curing gas is then transported to the storage chamber 3 via the inlet pipe 5 using a fan in the gas conditioning chamber 2. The discharged gas flows back to the gas conditioning chamber 2 via the return pipe 6, achieving gas circulation and ensuring that the concrete specimens in the storage chamber 3 remain under the standard curing environment. When the storage assembly 4 is pulled out of the storage chamber 3, the vents of the inlet pipe 5 and the return pipe 6 are closed by the linkage opening and closing assembly 7, de-connecting the storage chamber 3 to the gas conditioning chamber 2, preventing the loss of standard gas and also preventing contamination of other storage chambers. The influence of the concrete specimen in chamber 3: When the concrete specimen is placed on the placement component 4 and pushed into the storage chamber 3, the linkage opening and closing component 7 is connected, which opens the air inlet pipe 5 and the return pipe 6 in the storage chamber 3. The standard gas in the gas conditioning chamber 2 enters the storage chamber 3 through the air inlet pipe 5 and then flows back to the gas conditioning chamber 2 through the return pipe 6 for circulation, and the curing of the concrete specimen begins. Through the linkage opening and closing component 7, the loss of standard gas in the curing cabinet is effectively avoided, reducing the impact on other concrete specimens. The use of gas with standard humidity and temperature to cure the concrete specimen avoids the problem of uneven spraying on different surfaces of the concrete specimen caused by spraying.

[0027] Preferably, the linkage opening and closing assembly 7 includes a first blind hole tube 14, a second blind hole tube 15 slidably connected inside the first blind hole tube 14, a horizontal first through hole groove 16 on the first blind hole tube 14, a horizontal second through hole groove 17 on the second blind hole tube 15, a stop bar 18 fixedly connected to the outer wall of the second blind hole tube 15, the stop bar 18 passing through the first through hole groove 16 and sliding along the first through hole groove 16 to control the overlap of the first through hole groove 16 and the second through hole groove 17, a lever 13 is provided on the side of the placement assembly 4 to push the movement of the stop bar 18, and a first spring 19 is fixedly connected between the inner wall of the sealed end of the first blind hole tube 14 and the outer wall of the sealed end of the second blind hole tube 15. When the storage assembly 4 is pushed into the storage chamber 3, the lever 13 on the side of the storage assembly 4 pushes the stop lever 18 to move, and the second blind hole tube 15 slides in the first blind hole tube 14, so that the first through hole groove 16 and the second through hole groove 17 coincide, and the gas can flow through the first through hole groove 16. The standard gas in the gas conditioning chamber 2 enters from the inlet pipe 5, flows out from the return pipe 6 and flows back to the gas conditioning chamber 2 to cure the concrete specimen on the storage assembly 4. When the storage assembly 4 is pulled out of the storage chamber 3, the lever 13 no longer pushes the stop lever 18, and under the action of the first spring 19, the second blind hole tube 15 slides back to its original position within the first blind hole tube 14. At this time, the side wall of the second blind hole tube 15 blocks the first through hole groove 16. The first through hole groove 16 and the second through hole groove 17 are offset from each other, and the gas cannot flow through the first through hole groove 16. The standard gas in the gas regulating chamber 2 will not enter the storage chamber 3 through the air inlet of the air inlet pipe 5. At this time, the storage chamber 3 is connected to the outside air, and the gas regulating chamber 2 will not continuously suck in the air in the storage chamber 3, thus affecting the curing of other concrete specimens. The air circulation in the storage chamber 3 is controlled by pushing and pulling out the placement component 4, which is simple and convenient.

[0028] Preferably, the storage assembly 4 includes a sliding plate 8, which is slidably connected to the bottom of the storage chamber 3. A panel 20 is vertically installed on the end of the sliding plate 8 away from the cabinet 1, and the panel 20 seals the opening of the storage chamber 3 to form a sealed space. Several support rods 10 are fixedly connected to the upper surface of the sliding plate 8, and a support plate 9 is fixedly connected to the end of the support rod 10 away from the sliding plate 8 to store concrete specimens. Both sides of the support plate 9 are connected to levers 13 to move the stop bar 18. The sliding plate 8 is slidably connected to the bottom of the storage chamber 3 and connected by a guide rail, which allows the support plate 9 to be easily pushed in and pulled out of the storage chamber 3. The panel 20 and the storage chamber 3 form a sealed space, maintaining the stability of the curing environment inside the storage chamber 3.

[0029] Preferably, the support rod 10 includes a sleeve 21, the bottom of which is fixedly connected to the upper surface of the sliding plate 8, and a sliding rod 22 is slidably connected inside the sleeve 21. One end of the sliding rod 22 away from the sleeve 21 is fixedly connected to the bottom surface of the support plate 9. A second spring 23 is provided inside the sleeve 21, and the two ends of the second spring 23 are fixedly connected to the sleeve 21 and the sliding rod 22 respectively. The support rod 10 is an elastic telescopic rod structure. When no concrete specimen is placed on the support plate 9, the height of the lever 13 is higher than the height of the stop lever 18. The pushing and pulling of the storage component 4 will not cause the stop lever 18 to move. The storage chamber 3 is not connected to the gas conditioning chamber 2, so there is no need to perform gas conditioning maintenance on the space inside the storage chamber 3, reducing the maintenance space of the entire curing device and reducing energy consumption. After the concrete specimen is placed on the support plate 9, the height of the support plate 9 decreases, and the height of the lever 13 is the same as the height of the stop lever 18. At this time, the pushing of the storage component 4 can control the opening of the air inlet pipe 5 and the air return pipe 6 for curing the concrete specimen in the storage chamber 3. The pulling of the storage component 4 can control the closing of the air inlet pipe 5 and the air return pipe 6, without affecting the curing of concrete specimens in other storage chambers 3. The effect is good and energy consumption is saved.

[0030] Preferably, the sleeve 21 has a through groove 24, and a limiting rod 25 is fixedly connected to the slide rod 22. The limiting rod 25 passes through the through groove 24 and slides within the through groove 24 to lower the elevation of the lever 13 on the support plate 9 to match the stop rod 18. By setting the limiting rod 25, the distance the slide rod 22 descends is fixed when placing concrete specimens of different sizes and weights, ensuring that the height of the lever 13 and the stop rod 18 are consistent at this time. As the placement assembly 4 is pushed in and pulled out, the opening and closing of the linkage opening and closing assembly 7 can be accurately controlled.

[0031] Preferably, the vents of the air inlet pipe 5 and the air return pipe 6 are located at both ends along the length of the storage chamber 3 to improve gas circulation within the storage chamber 3. With the air inlet pipe 5 and the air return pipe 6 on both sides inside the storage chamber 3, and their vents at both ends along the length of the storage chamber 3, dead zones in gas circulation within the storage chamber 3 are effectively avoided. This ensures that the standard gas in the gas regulating chamber 2 is evenly distributed throughout the storage chamber 3, guaranteeing stable curing of the concrete specimens within the storage chamber 3.

[0032] Preferably, the inner wall surface of the storage chamber 3 is filled with an insulation layer. This ensures a stable temperature within the storage chamber 3 and saves energy consumption of the maintenance device.

[0033] Preferably, the support plate 9 has vertically continuous grid holes 12 to ensure stable curing of the bottom surface of the concrete specimen. The bottom surface of the concrete specimen is in contact with the standard gas through the grid holes 12, which allows for uniform curing of all surfaces of the concrete specimen. At the same time, the support rod 10 increases the height of the support plate 9, which is conducive to gas circulation at the bottom of the support plate 9 and improves the curing effect of the bottom of the concrete specimen.

[0034] Preferably, a limiting frame 11 is provided on the upper surface of the support plate 9 to restrict the movement of the concrete specimen, and an isolation rod is also provided on the upper surface of the support plate 9 to ensure the spacing between adjacent concrete specimens. The limiting frame 11 prevents the concrete specimen from falling off the support plate 9, and the isolation rod can ensure the spacing between adjacent concrete specimens, which is conducive to the air circulation between adjacent concrete specimens and the curing of the concrete specimens.

[0035] Working principle: When no concrete specimen is placed on the support plate 9, the height of the lever 13 on the support plate 9 is higher than the height of the stop lever 18. The pushing and pulling of the placement component 4 does not affect the linkage opening and closing component 7. The gas regulating chamber 2 and the storage chamber 3 are not connected. At this time, it is not necessary to adjust the environment in the storage chamber 3, saving energy consumption. After the concrete specimen is placed on the support plate 9, the height of the support plate 9 is reduced, and the height of the lever 13 drops to the same level as the stop lever 18. The placement component 4 is pushed inward, and the lever 13 pushes the stop lever 18 to move. The first through hole groove 16 and the second through hole groove 17 overlap. The standard gas in the gas regulating chamber 2 enters the storage chamber 3 through the air inlet pipe 5, and pushes the other gases out through the air return pipe 6. The temperature and humidity of the gas regulating chamber 2 are adjusted until the curing environment in the storage chamber 3 reaches the standard temperature and humidity. When the cured concrete specimen is to be taken out for testing, the placement component 4 is pulled outward, the lever 13 no longer pushes the stop lever 18, and under the action of the first spring 19, the second blind hole tube 15 moves to its original position, the first through hole groove 16 and the second through hole groove 17 are misaligned, and the air inlet of the air pipe 5 and the air outlet of the return air pipe 6 are closed. The storage chamber 3 is isolated from the gas circulation in the entire curing device. When the concrete specimen is taken out, it will not affect other concrete specimens in the curing device, and it also avoids the standard gas in the gas regulating chamber 2 from circulating with the atmosphere, thus avoiding the additional energy consumption for adjusting the temperature and humidity.

[0036] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A concrete specimen curing device, comprising a cabinet (1), wherein the cabinet (1) is provided with a plurality of storage chambers (3), and a gas regulating chamber (2) is installed on the top of the cabinet (1), characterized in that: The cabinet (1) is slidably connected to a storage assembly (4) to push or pull concrete specimens into or out of the storage chamber (3). The cabinet (1) is provided with an air inlet pipe (5) and an air return pipe (6). The two ends of the air inlet pipe (5) are connected to the storage chamber (3) and the gas regulating chamber (2) respectively. The two ends of the air return pipe (6) are connected to the storage chamber (3) and the gas regulating chamber (2) respectively. The gas with standard temperature and humidity in the gas regulating chamber (2) enters the storage chamber (3) through the air inlet pipe (5) and then flows back to the gas regulating chamber (2) through the air return pipe (6). The air inlet pipe (5) and the air return pipe (6) are respectively provided with separate linkage opening and closing assemblies (7) on the vents in the storage chamber (3). The linkage opening and closing assemblies (7) control the automatic opening and closing of the vents as the storage assembly (4) is pushed and pulled.

2. The concrete specimen curing device according to claim 1, characterized in that: The linkage opening and closing assembly (7) includes a first blind hole tube (14), and a second blind hole tube (15) in the same direction is slidably connected inside the first blind hole tube (14). A horizontal first through hole groove (16) is opened on the first blind hole tube (14), and a horizontal second through hole groove (17) is opened on the second blind hole tube (15). A stop bar (18) is fixedly connected to the outer wall of the second blind hole tube (15). The stop bar (18) passes through the first through hole groove (16) and slides along the first through hole groove (16) to control the overlap of the first through hole groove (16) and the second through hole groove (17). A lever (13) is provided on the side of the placement assembly (4) to push the stop bar (18) to move. A first spring (19) is fixedly connected between the inner wall of the sealed end of the first blind hole tube (14) and the outer wall of the sealed end of the second blind hole tube (15).

3. The concrete specimen curing device according to claim 2, characterized in that: The storage assembly (4) includes a sliding plate (8), which is slidably connected to the bottom of the storage chamber (3). A panel (20) is vertically installed on the end of the sliding plate (8) away from the cabinet (1). The panel (20) seals the opening of the storage chamber (3) to form a sealed space. Several support rods (10) are fixedly connected to the upper surface of the sliding plate (8). A support plate (9) is fixedly connected to the end of the support rod (10) away from the sliding plate (8) to store concrete specimens. Both sides of the support plate (9) are connected to levers (13) to move the stop bar (18).

4. The concrete specimen curing device according to claim 3, characterized in that: The support rod (10) includes a sleeve (21), the bottom of which is fixedly connected to the upper surface of the sliding plate (8), and a sliding rod (22) is slidably connected inside the sleeve (21). The end of the sliding rod (22) away from the sleeve (21) is fixedly connected to the bottom surface of the support plate (9). A second spring (23) is provided inside the sleeve (21), and the two ends of the second spring (23) are fixedly connected to the sleeve (21) and the sliding rod (22) respectively.

5. A concrete specimen curing device according to claim 4, characterized in that: The sleeve (21) has a through groove (24), and a limit rod (25) is fixedly connected to the slide rod (22). The limit rod (25) passes through the through groove (24) and slides in the through groove (24) so ​​that the elevation of the lever (13) on the support plate (9) drops to be consistent with the stop rod (18).

6. The concrete specimen curing device according to claim 1, characterized in that: The air inlets of the air inlet pipe (5) and the air outlet pipe (6) are located at both ends of the storage chamber (3) along its length to improve gas flow within the storage chamber (3).

7. A concrete specimen curing device according to claim 1, characterized in that: The inner wall surface of the storage chamber (3) is filled with a heat insulation layer.

8. A concrete specimen curing device according to claim 3, characterized in that: The support plate (9) is provided with grid holes (12) that run vertically through it to ensure the curing stability of the bottom surface of the concrete specimen.

9. A concrete specimen curing device according to claim 3, characterized in that: The upper surface of the support plate (9) is provided with a limit frame (11) to restrict the movement of the concrete specimen, and the upper surface of the support plate (9) is also provided with an isolation rod to ensure the spacing between adjacent concrete specimens.

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