Supporting frame for concrete test block curing

Abstract

The utility model discloses a support frame for concrete test block maintenance, which comprises a support, supporting plates, lifting folding rods and a lifting device, a plurality of supporting plates are arranged in the middle of the support, adjacent supporting plates are mutually connected through the lifting folding rods, the lifting device is connected with the supporting plate on the uppermost layer, and the lifting device lifts to drive the supporting plate on the uppermost layer to lift. And the lifting folding rods below are driven to be unfolded or folded by the ascending or descending of the supporting plate. The lifting device is matched with the lifting folding rod, so that the concrete test block is placed and taken out at a lower position, labor is saved and safety is achieved, and by arranging the lifting device and the lifting folding rod, a worker can safely place and take out the concrete test block in a labor-saving mode, and the concrete test block is reliably maintained in a labor-saving mode.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete, in particular to a support frame for curing concrete test blocks. Background Art

[0002] Concrete test blocks are samples used to test the strength and quality of concrete. They are generally made in certain standard shapes and sizes. During the production process, the concrete test blocks need to be cured. After the curing is completed, relevant experiments and tests are carried out to evaluate whether the concrete meets the design and construction quality requirements. During the curing process of the test blocks, it is necessary to provide a temperature and humidity close to the on-site construction and curing environment to ensure the construction quality. In order to reduce errors and provide more data for different curing cycles, it is often necessary to make a large number of concrete test blocks and place them on a bracket for curing. However, in order to save floor space, the bracket is generally set to a multi-layer structure, and the staff manually adjusts the concrete test block brackets to different heights. It is more laborious to place the concrete test blocks on high floors or remove them from high floors, and they may fall during placement and removal, posing a safety hazard. Therefore, the field of concrete technology needs to propose a bracket that can save effort and reliably place concrete test blocks for curing. Utility Model Content

[0003] In view of the above-mentioned prior art, the present invention provides a support frame for curing concrete test blocks, and the main technical problem to be solved is how to curing concrete test blocks in a labor-saving and reliable manner.

[0004] To achieve the above-mentioned purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] A support frame for curing concrete test blocks includes a bracket, a support plate, a lifting and folding rod and a lifting device. Several support plates are arranged in the middle of the bracket. Adjacent support plates are connected to each other through the lifting and folding rod. The lifting device is connected to the uppermost support plate. The lifting and lowering of the lifting device drives the uppermost support plate to rise and fall. The rise or fall of the support plate drives the lower lifting and folding rod to expand or fold.

[0006] Preferably, a sliding groove is provided at the connection between the bracket and the supporting plate, and a sliding block that cooperates with the sliding groove is provided at the connection between the supporting plate and the bracket.

[0007] Preferably, the lifting folding rod includes a first folding rod and a second folding rod, the upper end of the first folding rod is hinged to the lower end of the upper support plate, the lower end of the first folding rod is hinged to the upper end of the second folding rod, and the lower end of the second folding rod is hinged to the upper end of the lower support plate, and the first folding rod and the second folding rod are symmetrically arranged on both sides of the support plate.

[0008] Preferably, the middle portion of the support plate is provided with a steel wire mesh.

[0009] Preferably, a strip-shaped stopper is fixedly connected around the steel wire mesh, and the height of the upper end of the strip-shaped stopper is higher than the steel wire mesh.

[0010] Preferably, the lifting device includes a lifting motor, a steel cable drum, a lifting steel cable and a pulley, the rotating shaft of the lifting motor is fixedly connected to the steel cable drum, one end of the lifting steel cable is fixedly connected to the steel cable drum, and the other end of the lifting steel cable is fixedly connected to the slider through the pulley.

[0011] Preferably, the steel cable drum, the lifting steel cable and the pulley are each provided with two, the pulleys are symmetrically arranged on the left and right sides of the steel cable drum, and the steel cable drum is arranged on the front and rear sides of the lifting motor shaft.

[0012] Preferably, a rubber plate is provided on one side of the slider, a rack is provided on one side of the rubber plate, a gear that cooperates with the rack is provided at the connection between the first folding rod and the support plate, the gear is fixedly connected to the bottom of the first folding rod, and the gear is meshed with the rack.

[0013] Preferably, rubber bumps are provided on the outer side of the rubber plate.

[0014] Preferably, the rubber plate is configured as a hollow structure, and a telescopic spring is provided inside the rubber plate.

[0015] The beneficial effect of the present invention is that: the present application sets the lifting device to be connected with the uppermost tray, so that the lifting device can drive the uppermost tray to rise or fall, and when the uppermost tray rises, it can drive the lower tray to rise or fall through the lifting and folding rod. When placing concrete test blocks, all the pallets are in a folded state. After placing the concrete test blocks on the uppermost pallet, the uppermost pallet is lifted, and the lifting and folding rod is used to drive the lower pallets to unfold. The lifting device is continuously controlled to drive the uppermost pallet upward, so that concrete test blocks can be placed layer by layer on the lower pallets. When removing concrete test blocks, after removing the lowermost concrete test blocks, the lifting device drives the uppermost pallet downward. Under the action of the gravity of the concrete test blocks, the lifting and folding rod above the pallet where the concrete test blocks have not been removed is straightened by gravity, causing the lifting and folding rod above the pallet where the concrete test blocks have been removed to contract and fold. The concrete test blocks are removed layer by layer from bottom to top. The pallets are moved downward and folded layer by layer from bottom to top. The lifting device is continuously controlled to drive the uppermost pallet downward, so that concrete test blocks can be removed layer by layer from a lower position. The lifting device cooperates with the lifting and folding rod to enable the placement and removal of concrete test blocks to be carried out at a lower position, which is labor-saving and safe.

[0016] In summary, the present application provides the lifting device and the lifting and folding rod, so that workers can place and remove concrete test blocks with less effort and safety, and can maintain the concrete test blocks with less effort and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a support frame for curing concrete test blocks in an embodiment of the present application;

[0018] Figure 2 This is an enlarged view of point A in the embodiment of this application;

[0019] Figure 3 This is a structural schematic diagram of a support frame for curing concrete test blocks (with the support plate folded) in an embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the connection structure between the support plate and the lifting and folding rod in an embodiment of the present application;

[0021] Figure 5 This is an enlarged view of point B in the embodiment of this application;

[0022] Figure 6 This is a top view of the lifting device in the embodiment of the present application;

[0023] Figure 7 This is a schematic diagram of the connection structure between the gear and the rack in the embodiment of the present application;

[0024] Description of Figure Numbers:

[0025] 1. Bracket; 2. Support plate; 3. Lifting and folding rod; 4. Lifting device;

[0026] 201, steel wire mesh; 202, bar block;

[0027] 301, slide; 302, slider; 303, first folding rod; 304, second folding rod; 305, rubber plate; 306, rack; 307, gear; 308, rubber bump; 309, telescopic spring;

[0028] 401. Lifting motor; 402. Cable drum; 403. Lifting cable; 404. Pulley. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

[0030] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] Example 1

[0032] Refer to the attached Figure 1-3The present application provides a support frame for curing concrete test blocks, comprising a support frame 1, a support plate 2, a lifting and folding rod 3, and a lifting device 4. A plurality of support plates 2 are provided in the middle of the support frame 1, and adjacent support plates 2 are connected to each other via the lifting and folding rod 3. The lifting device 4 is connected to the support plate 2 on the top layer. The lifting and folding of the lifting device 4 drives the support plate 2 on the top layer to rise and fall, and the rising or falling of the support plate 2 drives the lifting and folding rod 3 below to expand or fold. By setting the lifting device 4 to be connected to the support plate 2 on the top layer, the lifting device 4 can drive the support plate 2 on the top layer to rise or fall. When the support plate 2 on the top layer rises, the lifting and folding rod 3 can drive the support plate 2 on the bottom layer to rise or fall. The lifting and folding rods 3 above the pallet 2 with no concrete blocks taken out are straightened by the gravity of the concrete blocks, thereby causing the lifting and folding rods 3 above the pallet 2 with the concrete blocks taken out to be retracted and folded, and the concrete blocks are taken out layer by layer from bottom to top, and the pallet 2 is moved to the bottom layer from bottom to top and folded, and the lifting and folding rods 3 above the pallet 2 with no concrete blocks taken out are continuously controlled to drive the pallet 2 of the top layer to descend, thereby allowing the concrete blocks to be taken out layer by layer at a low place. The lifting device 4 cooperates with the lifting and folding rod 3 so that the placement and removal of concrete test blocks are carried out at a lower position, which is labor-saving and safe. When concrete test blocks with different curing cycles need to be placed, the staff will place the concrete test blocks with a longer cycle on the upper tray 2 and the concrete test blocks with a shorter cycle on the lower tray 2, so that they can be removed from the bottom to the top through the lifting device 4 during the subsequent removal process. In summary, the device, by providing the lifting device 4 and the lifting and folding rod 3, allows the staff to place and remove concrete test blocks in a labor-saving and safe manner, and to perform labor-saving and reliable curing of concrete test blocks.

[0033] Specifically, a slide groove 301 is provided at the connection between the bracket 1 and the support plate 2, and a slider 302 is provided at the connection between the support plate 2 and the bracket 1 to cooperate with the slide groove 301. By providing the slide groove 301 and the slider 302, the present device allows both sides of the support plate 2 to always move in close contact with the bracket 1, ensuring the stability of the support plate 2 when rising and falling.

[0034] Specifically, the lifting folding rod 3 includes a first folding rod 303 and a second folding rod 304. The upper end of the first folding rod 303 is hinged to the lower end of the upper support plate 2, the lower end of the first folding rod 303 is hinged to the upper end of the second folding rod 304, and the lower end of the second folding rod 304 is hinged to the upper part of the lower support plate 2. The first folding rod 303 and the second folding rod 304 are symmetrically arranged on both sides of the support plate 2. The first folding rod 303 and the second folding rod 304 can also be added with limit blocks. When they are set to be fully unfolded, the hinge between the first folding rod 303 and the folding rod protrudes toward the lifting and folding rod 3 on the opposite side, forming a ∑ shape, so that when the lifting and folding rod 3 is folded, the hinge between the first folding rod 303 and the folding rod can be folded toward the lifting and folding rod 3 on the opposite side. The first folding rod 303 cooperates with the second folding rod 304 so that the adjacent support plates 2 can be smoothly unfolded or folded. At the same time, the first folding rod 303 and the second folding rod 304 are symmetrically arranged on both sides of the support plate 2, so that the unfolding or folding of the support plate 2 is more stable and reliable.

[0035] Specifically, the middle portion of the support plate 2 is provided with a steel wire mesh 201. The steel wire mesh 201 structure enables the concrete test block to be cured more comprehensively, and the bottom of the concrete test block can also be fully exposed to the air with a specific humidity and temperature during curing, making the test data more comprehensive and reliable.

[0036] Specifically, a strip block 202 is fixedly connected around the wire mesh 201, and the upper end of the strip block 202 is higher than the wire mesh 201. The strip block 202 can block the concrete test block on the support plate 2 to prevent the concrete test block from sliding out and falling, thereby improving the safety of the device.

[0037] Example 2

[0038] Refer to the attached Figure 1-7The difference between this embodiment and embodiment 1 is that the lifting device 4 includes a lifting motor 401, a cable drum 402, a lifting cable 403, and a pulley 404. The rotating shaft of the lifting motor 401 is fixedly connected to the cable drum 402, one end of the lifting cable 403 is fixedly connected to the cable drum 402, and the other end of the lifting cable 403 is fixedly connected to the slider 302 via the pulley 404. In this embodiment, the lifting motor 401 is configured as a YE-type low-speed motor equipped with a TQEB1 power-off electromagnetic brake. When the lifting motor 401 stops operating, the rotating shaft can be locked to prevent the support plate 2 from sliding downward. It should be understood that the lifting motor 401 can also be replaced with other types of brakes and brake motors that can lock the rotating shaft when it stops operating. The rotation of the shaft of the lifting motor 401 can release or reel in the lifting cable 403 through the cable drum 402, thereby causing the lifting cable 403 under the pulley 404 to pull the uppermost support plate 2 down or up, thereby driving the support plate 2 to fold or unfold smoothly.

[0039] Specifically, two of each of the steel cable drum 402, the lifting cable 403, and the pulley 404 are provided. The pulleys 404 are symmetrically arranged on the left and right sides of the steel cable drum 402, and the steel cable drum 402 is arranged on the front and rear sides of the rotating shaft of the lifting motor 401. In this embodiment, the lifting cable 403 on the left is connected to the steel cable drum 402 on the rear side, and the lifting cable 403 on the right is connected to the steel cable drum 402 on the front side. The two lifting cables 403 are wound in the same direction on the steel cable drum 402, so that the lifting and lowering of the pallet 2 are controlled by the same lifting motor 401, the lifting and lowering of the two sides of the pallet 2 are more synchronized, and the lifting and lowering of the pallet 2 are more stable.

[0040] Specifically, a rubber plate 305 is provided on one side of the slider 302, and a rack 306 is provided on one side of the rubber plate 305. A gear 307 is provided at the connection between the first folding rod 303 and the support plate 2, and the gear 307 cooperates with the rack 306. The gear 307 is fixedly connected to the bottom of the first folding rod 303 and meshes with the rack 306. When the first folding rod 303 and the second folding rod 304 above the support plate 2 are deployed, the gear 307 rotates through the rack 306 to drive the rubber plate 305 in a direction away from the bracket 1, thereby causing the rubber plate 305 to shrink and no longer contact the bracket 1, reducing friction and allowing the support plate 2 to rise. Through the rubber plate 305, when the uppermost support plate 2 is lifted, the first folding rod 303 and the second folding rod 304 below are unfolded, so that the rubber plate 305 is contracted, and the support plate 2 of the next layer can be pulled and lifted, thereby making the support plate 2 able to unfold and rise layer by layer from top to bottom, making the placement of concrete test blocks more convenient.

[0041] Specifically, rubber bumps 308 are provided on the outer side of the rubber plate 305. The rubber bumps 308 can increase the friction of the rubber plate 305 and enhance the locking effect of the rubber plate 305 on the support plate 2.

[0042] Specifically, the rubber plate 305 is configured as a hollow structure, and a telescopic spring 309 is disposed inside the rubber plate 305. When the first folding rod 303 and the second folding rod 304 above are not fully deployed, the telescopic spring 309 can continuously provide a thrust to the outer side of the rubber plate 305, ensuring that the rubber plate 305 contacts the inner side of the bracket 1, providing friction, and further ensuring that the support plate 2 moves after the first folding rod 303 and the second folding rod 304 above are fully deployed.

[0043] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. The scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A support frame for curing concrete test blocks, characterized in that: The invention comprises a bracket (1), a support plate (2), a lifting and folding rod (3) and a lifting device (4); a plurality of support plates (2) are arranged in the middle of the bracket (1); adjacent support plates (2) are connected to each other via the lifting and folding rod (3); the lifting device (4) is connected to the support plate (2) on the uppermost layer; the lifting and lowering of the lifting device (4) drives the support plate (2) on the uppermost layer to rise and fall; the rising or falling of the support plate (2) drives the lifting and folding rod (3) below to unfold or fold.

2. A support frame for curing concrete test blocks according to claim 1, characterized in that: A sliding groove (301) is provided at the connection between the bracket (1) and the supporting plate (2), and a sliding block (302) that cooperates with the sliding groove (301) is provided at the connection between the supporting plate (2) and the bracket (1).

3. A support frame for curing concrete test blocks according to claim 2, characterized in that: The lifting folding rod (3) comprises a first folding rod (303) and a second folding rod (304), wherein the upper end of the first folding rod (303) is hinged to the lower end of the upper support plate (2), the lower end of the first folding rod (303) is hinged to the upper end of the second folding rod (304), and the lower end of the second folding rod (304) is hinged to the upper end of the lower support plate (2), and the first folding rod (303) and the second folding rod (304) are symmetrically arranged on both sides of the support plate (2).

4. A support frame for curing concrete test blocks according to claim 3, characterized in that: The middle portion of the support plate (2) is provided with a steel wire mesh (201).

5. A support frame for curing concrete test blocks according to claim 4, characterized in that: A strip-shaped stopper (202) is fixedly connected around the steel wire mesh (201), and the height of the upper end of the strip-shaped stopper (202) is higher than that of the steel wire mesh (201).

6. A support frame for curing concrete test blocks according to claim 5, characterized in that: The lifting device (4) comprises a lifting motor (401), a steel cable drum (402), a lifting steel cable (403) and a pulley (404); the rotating shaft of the lifting motor (401) is fixedly connected to the steel cable drum (402); one end of the lifting steel cable (403) is fixedly connected to the steel cable drum (402); and the other end of the lifting steel cable (403) is fixedly connected to the slider (302) via the pulley (404).

7. A support frame for curing concrete test blocks according to claim 6, characterized in that: The steel cable drum (402), the lifting steel cable (403) and the pulley (404) are each provided with two, and the pulley (404) is symmetrically arranged on the left and right sides of the steel cable drum (402), and the steel cable drum (402) is arranged on the front and rear sides of the rotating shaft of the lifting motor (401).

8. A support frame for curing concrete test blocks according to claim 7, characterized in that: A rubber plate (305) is provided on one side of the slider (302), a rack (306) is provided on one side of the rubber plate (305), a gear (307) that cooperates with the rack (306) is provided at the connection between the first folding rod (303) and the supporting plate (2), the gear (307) is fixedly connected to the bottom of the first folding rod (303), and the gear (307) is meshed with the rack (306).

9. A support frame for curing concrete test blocks according to claim 8, characterized in that: The outer side of the rubber plate (305) is provided with rubber protrusions (308).

10. A support frame for curing concrete test blocks according to claim 9, characterized in that: The rubber plate (305) is configured as a hollow structure, and a telescopic spring (309) is provided inside the rubber plate (305).

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