Concrete strength testing device convenient to clean

Abstract

The utility model relates to a concrete strength testing device convenient to clean, which comprises a slag box, the slag box is used for collecting broken concrete and dust generated by the broken concrete, a support rod is fixed at the top of the slag box, and a pressure mechanism is fixed on the right side of the support rod. The pressure mechanism is used for testing the strength of concrete and preventing dust from drifting around; and a pressure seat is fixed at the top of the slag box. According to the concrete strength testing device convenient to clean, concrete is placed on the top of the placing plate, the concrete strength is tested in a closed mode by starting the pressure mechanism to downwards move, the elastic compression assembly is stressed to downwards move to be completely attached to the pressure base, and after the concrete is broken, the pressure mechanism is slightly adjusted upwards to make the pressure mechanism not apply pressure to the concrete any more; and the transmission compression assembly rises, the servo motor drives the placement plate to rotate forwards and backwards through the transmission compression assembly, fragments are thrown out through centrifugal force and fall into the slag box, no residues exist, cleaning is convenient, and cleanliness and sanitation are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete strength detection, in particular to a concrete strength testing device which is easy to clean. Background Art

[0002] Concrete is a general term for engineering composite materials that are made of aggregates bonded together by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, mixed with water in a certain proportion and obtained by mixing. It is also called ordinary concrete and is widely used in civil engineering.

[0003] After the concrete is configured in a certain proportion, it is necessary to take samples and perform strength tests on the sample concrete, and record the experimental data. The traditional method of testing the strength of concrete is to perform pressure testing through hydraulic equipment, and gradually increase the pressure to record the critical pressure value of concrete rupture to judge the strength of the concrete. However, after the concrete is broken, a large amount of fragments, powder and dust will be generated, and they will splash quickly under the action of pressure, which is difficult to clean. Therefore, a concrete strength testing device that is easy to clean is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a concrete strength testing device that is easy to clean, has the advantages of being easy to clean, etc., and solves the problem that a large amount of fragments, powder and dust will be generated after the concrete is broken, and will splash quickly under the action of pressure, making it difficult to clean.

[0005] To achieve the above object, the utility model provides the following technical solutions: a concrete strength testing device that is easy to clean, comprising a slag box, the slag box is used to collect broken concrete and dust generated by it, a support rod is fixed on the top of the slag box, a pressure mechanism is fixed on the right side of the support rod, the pressure mechanism is used to test the strength of concrete and prevent dust from flying around;

[0006] A pressure seat is fixed on the top of the slag box, a power box is fixed on the bottom of the inner cavity of the slag box, a servo motor that can rotate forward and reverse to throw off fragments and dust by centrifugal force is fixed on the bottom of the inner cavity of the power box, a transmission compression assembly that penetrates to the top of the pressure seat is fixed on the output shaft of the servo motor, a placement plate is fixed on the top of the transmission compression assembly, and the placement plate is used to place concrete samples and support them for strength testing;

[0007] The pressure mechanism includes an electric hydraulic rod fixed to the right side of the support rod, an expansion plate is fixed to the bottom of the electric hydraulic rod, recovery components are fixed around the bottom of the expansion plate, protective covers are fixed to the bottom of the four recovery components, the protective covers are used to prevent fragments and dust from being scattered when testing the strength of concrete, a pressure rod is fixed to the bottom of the expansion plate and penetrates into the protective cover, a pressure head is fixed to the bottom of the pressure rod, and the pressure head is used to contact concrete and crush it to detect its strength.

[0008] Furthermore, a cleaning door is hinged on the right side of the slag box, a handle is fixed on the right side of the cleaning door, an anti-slip sleeve is fixed on the outer surface of the handle, and supporting legs are fixed around the bottom of the slag box.

[0009] Furthermore, a material guiding slope is fixed at the bottom of the inner cavity of the slag box, a reinforcing rib fixed to the support rod is fixed at the top of the slag box, and a counterweight block is fixed at the bottom of the slag box.

[0010] Furthermore, the recovery assembly includes a hollow rod fixed to the bottom of the expansion plate, and the inner surface of the hollow rod is slidably connected to a solid rod fixed to the protective cover.

[0011] Furthermore, a limiting plate located inside the hollow rod is fixed to the top of the solid rod, and a restoring spring sleeved on the outer surface of the solid rod and with the bottom fixed to the top of the protective cover is fixed to the bottom of the hollow rod.

[0012] Furthermore, a guide slope is fixed on the outer surface of the pressure seat, a plurality of feed holes are opened on the top of the slag box and are located below the guide slope, and a plurality of guide plates are fixed on the top of the inner wall of the slag box.

[0013] Furthermore, the transmission compression assembly includes a transmission rod fixed to the output shaft of the servo motor and extending through the interior of the pressure seat, and a thin rod is fixed to the top of the transmission rod.

[0014] Furthermore, the outer surface of the thin rod is slidably connected to a thick rod fixed to the placement plate, and the bottom of the thick rod is fixed with a buffer spring which is sleeved on the outer surface of the thin rod and fixed to the transmission rod.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The easy-to-clean concrete strength testing device places concrete on the top of the placement plate, starts the pressure mechanism to move downward in a closed manner to test the concrete strength, the elastic compression component is forced to move downward and fits the pressure seat completely, when the concrete is broken, the pressure mechanism is slightly adjusted upward so that it no longer applies pressure to the concrete, the transmission compression component rises, and the servo motor drives the placement plate to rotate forward and reverse through the transmission compression component, and the broken pieces are thrown out by centrifugal force and fall into the slag box, so that there is no residue and it is easy to clean, neat and hygienic. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the pressure mechanism of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the restoration component of the utility model.

[0020] In the figure: 1 slag box, 2 support rod, 3 pressure mechanism, 301 electric hydraulic rod, 302 expansion plate, 303 recovery component, 3031 hollow rod, 3032 solid rod, 3033 limit plate, 3034 recovery spring, 304 protective cover, 305 pressure rod, 306 pressure head, 4 pressure seat, 5 power box, 6 servo motor, 7 transmission compression component, 8 placement plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 In this embodiment, a concrete strength testing device that is easy to clean includes a slag box 1, which is used to collect broken concrete and dust generated by it. It should be noted that a cleaning door is hinged on the right side of the slag box 1, and the cleaning door can be opened so that the staff can clean the residue accumulated inside it. A handle is fixed on the right side of the cleaning door, and the handle can provide pulling force to the worker. The outer surface of the handle is fixed with an anti-slip sleeve, which is a rubber sleeve, which is durable and can increase resistance to make the grip more firm. Support legs are fixed around the bottom of the slag box 1, and the support legs can make the test device leave the ground, so that less vibration caused by concrete crushing is transmitted to the ground.

[0023] It needs to be further explained that a material inlet slope is fixed at the bottom of the inner cavity of the slag box 1, and reinforcing ribs fixed to the support rod 2 are fixed at the top of the slag box 1. The reinforcing ribs can increase the structural strength and provide further support for the support rod 2. A counterweight is fixed at the bottom of the slag box 1, and the counterweight can lower the overall center of gravity of the test device, making it more stable during operation and placement.

[0024] In addition, a support rod 2 is fixed on the top of the slag box 1, and a pressure mechanism 3 is fixed on the right side of the support rod 2. The pressure mechanism 3 is used to test the strength of concrete and prevent dust from flying around.

[0025] Furthermore, a pressure seat 4 is fixed on the top of the slag box 1. It should be noted that a guide slope is fixed on the outer surface of the pressure seat 4. The guide slope can facilitate the slag to fall with gravity. A plurality of feed holes are opened on the top of the slag box 1 and are located below the guide slope. The feed holes provide a channel for the slag to fall. A plurality of guide plates are fixed on the top of the inner wall of the slag box 1. The guide plates can prevent the concrete slag from bumping against the power box 5.

[0026] In addition, a power box 5 is fixed to the bottom of the inner cavity of the slag box 1, and a servo motor 6 is fixed to the bottom of the inner cavity of the power box 5, which can rotate forward and reverse to throw off fragments and dust by centrifugal force. The output shaft of the servo motor 6 is fixed with a transmission compression assembly 7 that passes through the top of the pressure seat 4. It should be explained that the transmission compression assembly 7 includes a transmission rod fixed to the output shaft of the servo motor 6 and passing through the inside of the pressure seat 4. The transmission rod can rotate along with the output shaft of the servo motor 6 and support the components above. A thin rod is fixed to the top of the transmission rod, and the outer surface of the thin rod is slidably connected to a thick rod fixed to the placement plate 8. When the thin rod slides into the thick rod, the buffer spring can be squeezed by changing the total length of the two, causing it to deform and generate elastic force. The bottom of the thick rod is fixed with a buffer spring that is sleeved on the outer surface of the thin rod and fixed to the transmission rod. After being squeezed, the buffer spring will deform and continuously accumulate elastic force. After the squeezing force disappears, it can restore its original shape through the elastic force.

[0027] In addition, a placement plate 8 is fixed on the top of the transmission compression assembly 7, and the placement plate 8 is used to place the concrete sample and support it for strength testing.

[0028] During operation, the pressure mechanism 3 is started to move downward, and the strength of the concrete on the top of the placement plate 8 is tested in a closed manner. The transmission compression component 7 is compressed and fully fits the pressure seat 4. After the concrete is crushed, the pressure mechanism 3 no longer applies pressure, and the servo motor 6 drives the placement plate 8 to rotate forward and reverse through the transmission compression component 7, and the broken pieces are thrown off by centrifugal force and slide into the slag box 1.

[0029] See also Figure 2-3In order to test the strength of concrete, the pressure mechanism 3 in this embodiment includes an electric hydraulic rod 301 fixed to the right side of the support rod 2, and an expansion plate 302 is fixed to the bottom of the electric hydraulic rod 301. Restoration components 303 are fixed around the bottom of the expansion plate 302. It should be noted that the restoration component 303 includes a hollow rod 3031 fixed to the bottom of the expansion plate 302, and the inner surface of the hollow rod 3031 is slidably connected to a solid rod 3032 fixed to the protective cover 304. When the solid rod 3032 slides into the interior of the hollow rod 3031, its total length will be reduced.

[0030] It should also be understood that a limit plate 3033 located inside the hollow rod 3031 is fixed to the top of the solid rod 3032, and the limit plate 3033 can prevent the solid rod 3032 from completely sliding out of the inner cavity of the hollow rod 3031. A return spring 3034 is fixed to the bottom of the hollow rod 3031, which is sleeved on the outer surface of the solid rod 3032 and has its bottom fixed to the top of the protective cover 304. The solid rod 3032 slides into the interior of the hollow rod 3031 to change its total length, and continuously transmits the extrusion force to the return spring 3034, which undergoes elastic deformation under the force and continuously accumulates elastic force.

[0031] In addition, a protective cover 304 is fixed to the bottom of the four restoration components 303. The protective cover 304 is used to prevent fragments and dust from being scattered when testing the strength of concrete. The protective cover 304 is a transparent acrylic cover, which can be used to observe the internal situation from the outside, prevent dust from floating out, and prevent the broken concrete fragments from causing harm to the operator. A pressure rod 305 that penetrates into the inside of the protective cover 304 is fixed to the bottom of the expansion plate 302, and a pressure head 306 is fixed to the bottom of the pressure rod 305. The pressure head 306 is used to contact the concrete and crush it to test its strength.

[0032] In general, the electric hydraulic rod 301 extends downward and drives the expansion plate 302 to move downward. The protective cover 304 first contacts the slag box 1. The solid rod 3032 slides into the interior of the hollow rod 3031 and continuously transmits the pressure to the return spring 3034, which undergoes elastic deformation and accumulates elastic force. After the pressure head 306 contacts the concrete, it begins to apply continuous pressure to test the strength of the concrete.

[0033] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0034] The working principle of the above embodiment is:

[0035] During use, concrete can be placed on the top of the placing plate 8, and the electric hydraulic rod 301 is started to extend downward, and the expansion plate 302 is driven to move downward. The protective cover 304 first contacts the top of the slag box 1, and the solid rod 3032 slides into the interior of the hollow rod 3031 and continuously transmits the pressure to the restoring spring 3034, so that it is elastically deformed and accumulates elastic force. After the pressure head 306 contacts the concrete, it starts to continuously apply pressure to test the strength of the concrete. The thick rod is forced to move downward, so that the thin rod slides into its inner cavity and continuously compresses the buffer spring to deform it. The accumulated elastic force changes, and the placement plate 8 is forced to move downward so that it is in close contact with the pressure seat 4. When the concrete is broken, the pressure mechanism 3 is slightly adjusted upward so that it no longer applies pressure to the concrete. The transmission compression component 7 rises, and through the forward and reverse rotation of the servo motor 6, the placement plate 8 is driven by the transmission compression component 7 to rotate forward and reverse, and the broken pieces are thrown out by centrifugal force and fall into the slag box 1 through the feed hole. After cleaning is completed, the electric hydraulic rod 301 moves up and down so that the lower mechanism is no longer under pressure. The transmission compression component 7 and the recovery component 303 return to their original state under the action of elastic force, and there is no residue, which is easy to clean and tidy.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A concrete strength testing device that is easy to clean, comprising a slag box (1), wherein the slag box (1) is used to collect broken concrete and dust generated by it, and is characterized in that: A support rod (2) is fixed on the top of the slag box (1), and a pressure mechanism (3) is fixed on the right side of the support rod (2), and the pressure mechanism (3) is used to test the strength of concrete and prevent dust from flying around; A pressure seat (4) is fixed on the top of the slag box (1), a power box (5) is fixed on the bottom of the inner cavity of the slag box (1), a servo motor (6) capable of forward and reverse rotation to throw off fragments and dust by centrifugal force is fixed on the bottom of the inner cavity of the power box (5), a transmission compression assembly (7) penetrating to the top of the pressure seat (4) is fixed on the output shaft of the servo motor (6), a placement plate (8) is fixed on the top of the transmission compression assembly (7), and the placement plate (8) is used to place concrete samples and support them for strength testing; The pressure mechanism (3) comprises an electric hydraulic rod (301) fixed to the right side of the support rod (2); an expansion plate (302) is fixed to the bottom of the electric hydraulic rod (301); recovery components (303) are fixed around the bottom of the expansion plate (302); protective covers (304) are fixed to the bottoms of the four recovery components (303); the protective covers (304) are used to prevent fragments and dust from being scattered when testing the strength of concrete; a pressure rod (305) is fixed to the bottom of the expansion plate (302) and penetrates into the protective cover (304); a pressure head (306) is fixed to the bottom of the pressure rod (305); the pressure head (306) is used to contact and crush concrete to test its strength.

2. The easy-to-clean concrete strength testing device according to claim 1, characterized in that: A cleaning door is hinged on the right side of the slag box (1), a handle is fixed on the right side of the cleaning door, an anti-slip sleeve is fixed on the outer surface of the handle, and supporting legs are fixed on all four sides of the bottom of the slag box (1).

3. The easy-to-clean concrete strength testing device according to claim 1, characterized in that: A material guide slope is fixed at the bottom of the inner cavity of the slag box (1), a reinforcing rib fixed to the support rod (2) is fixed at the top of the slag box (1), and a counterweight is fixed at the bottom of the slag box (1).

4. The easy-to-clean concrete strength testing device according to claim 1, characterized in that: The recovery assembly (303) comprises a hollow rod (3031) fixed to the bottom of the expansion plate (302), and the inner surface of the hollow rod (3031) is slidably connected to a solid rod (3032) fixed to the protective cover (304).

5. The easy-to-clean concrete strength testing device according to claim 4, characterized in that: A limiting plate (3033) located inside the hollow rod (3031) is fixed to the top of the solid rod (3032), and a restoring spring (3034) sleeved on the outer surface of the solid rod (3032) and fixed at the bottom of the hollow rod (3031) is fixed to the top of the protective cover (304).

6. The easy-to-clean concrete strength testing device according to claim 1, characterized in that: A guide slope is fixed on the outer surface of the pressure seat (4), a plurality of feed holes are opened on the top of the slag box (1) and are located below the guide slope, and a plurality of guide plates are fixed on the top of the inner wall of the slag box (1).

7. The easy-to-clean concrete strength testing device according to claim 1, characterized in that: The transmission compression assembly (7) comprises a transmission rod fixed to the output shaft of the servo motor (6) and extending through the interior of the pressure seat (4), and a thin rod is fixed to the top of the transmission rod.

8. The easy-to-clean concrete strength testing device according to claim 7, characterized in that: The outer surface of the thin rod is slidably connected to a thick rod fixed to the placement plate (8), and the bottom of the thick rod is fixed with a buffer spring sleeved on the outer surface of the thin rod and fixed to the transmission rod.

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