Device for testing compression resistance of two ends of concrete member

Abstract

The utility model belongs to the technical field of concrete strength detection instruments, and particularly relates to a compression resistance testing device for two ends of a concrete member, which comprises a base, a support plate fixed on the upper surface of the base and a pressurizing component arranged on the support plate, and four vertical guide columns are arranged between the base and the support plate. The pressurizing assembly comprises a telescopic cylinder and a movable plate, a plurality of door plates are movably connected between the supporting plate and the base, any guide column is composed of a long first stand column and a short second stand column, and the bottom end of the first stand column is detachably connected with a lifting assembly; the lifting assembly comprises a sleeve rotationally arranged on the base and a movable cylinder which is coaxial with the sleeve and is in threaded connection with the interior of the sleeve, and a groove is formed in the upper end face of the movable cylinder. And part of stand columns on the testing equipment can prevent concrete blocks from being put in, so that the working efficiency needs to be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to concrete strength detection instrument technical field, concretely relates to a concrete member both ends compression test device. BACKGROUND

[0002] The concrete compressive strength detection is the important link in the building engineering, and the concrete compressive strength directly influences the bearing capacity of building structure, and the detection can ensure that it meets the design requirement, avoids the security hidden danger such as collapse or deformation due to insufficient strength, and simultaneously, the concrete proportioning, curing condition etc. are verified through detection in the construction process, and data support is provided for engineering acceptance, and the compressive strength is related to the microstructure such as concrete density and porosity, and the detection result can indirectly reflect long-term performance such as impermeability and frost resistance. And at present, the concrete strength is mainly detected by using laboratory standard test block compression test (core direct method), and the vertical pressure is applied to the standard curing concrete test block by the press, until the test block is damaged, the maximum pressure value is recorded and the compressive strength is calculated. For example, a kind of concrete compression test equipment (patent announcement number: CN222561425U) is disclosed in Chinese patent, and the centering assembly is arranged to realize the centering effect of the device on the concrete standard test block, compared with the existing four-way linkage synchronous pushing concrete test block centering mode, the test block has a free end during the pushing of the two centering blocks, and can rotate, at the same time, the protective window is arranged to block the concrete debris splashing out of the device, and the personal safety of workers is protected, and the hole is arranged on the pressure bearing table, the broken concrete test block after test is recycled, and the difficulty of workers cleaning the device is reduced.

[0003] The above technical scheme provides a kind of concrete compression equipment, but, in actual use process, when the compression detection of some concrete blocks of larger volume or irregular shape is carried out, the concrete block needs to be placed below the pressing plate and fixed first, and four columns are usually arranged around the pressing plate to support the hydraulic device, so that the concrete block can only be placed into the specified detection position from the gap between the four columns, and multiple workers are needed to assist in placing, and the efficiency needs to be improved. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a kind of concrete member both ends compression test device to solve the problem that part of column on test equipment blocks concrete block when carrying out compression detection, leading to work efficiency to be improved.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A concrete component both ends compression testing device, including base, fixed on the upper surface of the support plate and the support plate is provided on the pressurization assembly, the base and the support plate between four vertical guide column is equipped with, and four guide columns are distributed on the horizontal plane in rectangle, the pressurization assembly includes the telescopic cylinder provided on the upper surface of the support plate and the movable plate fixed on the working end of telescopic cylinder, the movable plate is horizontally arranged and is slid on each guide column, the support plate and the base are movably connected with a plurality of door plates, and each door plate is vertically arranged and surrounds the support plate around, wherein, any guide column is composed of the first column with longer length and the second column with shorter length, the upper end of the second column is fixed with the support plate, the first column is detachably connected with the lower end of the second column, the bottom end of the first column is detachably connected with the lifting assembly, the lifting assembly includes the sleeve rotatably arranged on the base and the movable cylinder coaxially and screw connected in the sleeve, the upper end surface of the movable cylinder is provided with a groove for placing the first column, and the movable cylinder moves axially along the sleeve under the action of screw.

[0007] Further, the upper end surface of the movable cylinder is provided with a limiting groove matched with the second column, the limiting groove is coaxially provided with a movable block, and the movable block is elastically and slidably arranged along the axis of the movable cylinder, and the upper end surface of the movable block is detachably connected with the lower end surface of the second column.

[0008] Further, the lifting assembly further includes a support housing detachably connected with the base, one side surface of the base is provided with a notch for placing the support housing, the sleeve is rotatably arranged in the support housing, and the upper end surface of the movable cylinder penetrates the upper surface of the support housing.

[0009] Further, the outer surface of the sleeve is sleeved and fixed with a gear ring coaxial with the sleeve, one side surface of the support housing is rotatably connected with a horizontally arranged rotating rod, one end of the rotating rod is fixed with a transmission gear meshing with the gear ring, and the other end is fixed with a handle outside the support housing.

[0010] Further, each door plate is made of high-strength transparent plastic material, and each door plate is detachably connected with a protective plate on the inner side surface, and each protective plate is provided with a plurality of through holes on the surface.

[0011] The beneficial effects of the utility model lie in:

[0012] This invention sets one of the guide columns as a detachable first column and second column, and uses a lifting component to enable quick assembly and disassembly of the first column. When it is necessary to perform compressive strength testing on large, irregularly shaped concrete blocks, the first column can be detached to widen the gap between the guide columns, making it easier to place the concrete block in the designated position and perform subsequent position adjustment and fixation. This effectively solves the problem of difficulty in placing concrete blocks caused by the fixed spacing of the guide columns in traditional devices.

[0013] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0015] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0017] Figure 3 This is a front view of the overall structure of this utility model;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 This is a vertical sectional view of the support shell of this utility model;

[0020] Figure 6 This is a schematic diagram showing the connection between the first and second columns of this utility model.

[0021] The following labels are shown in the attached diagram:

[0022] 1. Base, 2. Support plate, 3. Guide column, 301. First column, 302. Second column, 4. Telescopic cylinder, 5. Movable plate, 6. Door panel, 7. Positioning block, 8. Positioning groove, 9. Lifting assembly, 901. Sleeve, 902. Movable cylinder, 903. Movable block, 904. Support housing, 905. Gear ring, 906. Transmission gear, 907. Rotating rod, 10. Knife edge plate, 11. End plate, 12. Protective plate, 13. Displacement gauge, 14. Concrete block. Detailed Implementation

[0023] like Figures 1-6 As shown,

[0024] A concrete component two-end compression testing device, comprising a base 1, a support plate 2 fixed on the upper surface of the base 1 and a pressurizing assembly arranged on the support plate 2, the support plate 2 is vertically fixed on the upper surface of the base 1 and is in the shape of "L", four vertical guide columns 3 are arranged between the base 1 and the support plate 2 and are distributed in a rectangular shape in the horizontal plane, the pressurizing assembly comprises a telescopic cylinder 4 arranged on the upper surface of the support plate 2 and a movable plate 5 fixed on the working end of the telescopic cylinder 4, the movable plate 5 is horizontally arranged and slides on each guide column 3, three door plates 6 are movably connected between the support plate 2 and the base 1, two of the door plates 6 are symmetrically arranged about the vertical axis of the support plate 2 and are hingedly connected between the support plate 2 and the base 1, the remaining one door plate 6 is hingedly connected with one of the two door plates 6, and each door plate 6 is vertically arranged and surrounds the four sides of the support plate 2; wherein, any guide column 3 away from the support plate 2 is composed of a first vertical column 301 with a longer length and a second vertical column 302 with a shorter length, the upper end of the first vertical column 301 is coaxially fixed with a positioning block 7, the horizontal cross section of the positioning block 7 is in the shape of rectangle, the bottom end of the second vertical column 302 is provided with a positioning groove 8 matched with the positioning block 7, and the top end of the second vertical column 302 is fixed with the surface of the support plate 2, the bottom end of the first vertical column 301 is detachably connected with a lifting assembly 9, the lifting assembly 9 comprises a sleeve 901 rotatably arranged on the base 1 and an active cylinder 902 coaxially and threadedly connected in the sleeve 901, the active cylinder 902 is also slidably arranged on the base 1 in the vertical direction, the upper end surface of the active cylinder 902 is provided with a recess for placing the first vertical column 301, and when the sleeve 901 rotates, the active cylinder 902 moves axially along the sleeve 901 under the action of the thread, and the lower end of the second vertical column 302 is detachably connected with the active cylinder 902.

[0025] Wherein, the lower end surface of the movable plate 5 is fixed with an upper fixed table, the lower end surface of the fixed table is fixedly connected with a knife-edge plate 10 through bolts, the upper surface of the base 1 is fixed with a lower fixed table corresponding to the upper fixed table, and the upper surface of the lower fixed table is also fixed with the knife-edge plate 10, when the concrete block 14 is subjected to pressure detection, the upper and lower end surfaces of the concrete block 14 are both fixed with end plates 11 through bolts.

[0026] When the concrete block 14 needs to be tested for compression resistance, the upper end plate 11 is fixed on the upper and lower end faces of the concrete block 14, and then the door plates 6 are opened, and the concrete block 14 is placed between the upper fixed table and the lower fixed table. When the volume of the concrete block 14 is large and it is not convenient to place it, the telescopic cylinder 4 is first controlled to lift the movable plate 5 to the top end to ensure that the movable plate 5 is above the joint between the first column 301 and the second column 302, and then the sleeve 901 is rotated and the movable cylinder 902 is moved downward along its axis. During the rotation process, the worker holds the first column 301 by hand, and when the movable cylinder 902 is lowered to a certain height, the bottom end of the first column 301 is separated from the groove on the upper end face of the movable cylinder 902, and then the first column 301 can be removed and separated from the second column 302. At this time, the concrete block 14 with a large size can be easily placed between the upper fixed table and the lower fixed table and preliminarily fixed, and then the separated second column 302 is reset, and the movable cylinder 902 is moved to the top end, so that the second column 302 is fixed between the first column 301 and the movable cylinder 902. Then, the door plates 6 are closed and surrounded around the telescopic cylinder 4, and the telescopic cylinder 4 can be controlled to test the concrete block 14 for compression resistance. The door plates 6 can effectively block the splashing of concrete fragments and protect the safety of workers.

[0027] In the embodiment, the diameter of the groove is larger than the diameter of the first column 301, and the movable block 903 is coaxially arranged in the groove. The inner wall of the groove is provided with an annular sliding groove, and the movable block 903 is elastically and slidably arranged in the sliding groove along the axis of the movable cylinder 902. The movable block 903 can rotate in the sliding groove, and a spring is arranged between the lower end face of the movable block 903 and the inner wall of the groove. The upper end face of the movable block 903 is provided with the positioning groove 8, and the lower end face of the second column 302 is also fixed with the positioning block 7, and the second column 302 is detachably connected with the movable block 903 through the cooperation of the positioning groove 8 and the positioning block 7.

[0028] In combination with Figure 5As shown, when the first column 301 and the second column 302 are fixed, the spring in the groove is in a compressed state, and the movable block 903 is located at the bottom end of the sliding groove; when the first column 301 is to be removed, the sleeve 901 is first rotated to drive the movable cylinder 902 to move downward along its axis, and when the movable cylinder 902 moves a distance, the spring in the groove gradually expands, and the upper end of the spring always abuts against the movable block 903, so that the movable block 903 is in contact with the bottom end of the first column 301, ensuring that the first column 301 will not fall under the action of its own gravity. At this time, the worker needs to tightly hold the first column 301 and drive it to move downward a distance and compress the spring, so that the positioning block 7 at the top end of the first column 301 is separated from the corresponding positioning groove 8. Since the diameter of the groove is greater than the diameter of the first column 301, there is a certain amount of movement between the first column 301 and the inner wall of the groove, which can be used for the bottom end of the first column 301 to move and be taken out of the groove. Similarly, when the first column 301 needs to be reassembled, the bottom end of the first column 301 is matched with the movable block 903, and then the sleeve 901 is rotated to drive the movable cylinder 902 to move upward, so that the top end of the first column 301 is matched with the second column 302, until the movable block 903 moves to the bottom end of the sliding groove, and the spring is compressed. At this time, the first column 301 and the second column 302 are fixed to each other and will not affect the movement of the movable plate 5.

[0029] In the embodiment, the lifting assembly 9 further comprises a support housing 904 detachably connected to the base 1, one side surface of the base 1 is provided with a gap for placing the support housing 904, the sleeve 901 is rotationally arranged in the support housing 904, and the upper end surface of the movable cylinder 902 penetrates the upper surface of the support housing 904; a gear ring 905 coaxial with the sleeve 901 is sleeved and welded on the outer circle surface of the sleeve 901, one side surface of the support housing 904 is rotationally connected with a horizontally arranged rotating rod 907, one end of the rotating rod 907 is fixed with a transmission gear 906 engaged with the gear ring 905, and the other end is fixed with a handle outside the support housing 904.

[0030] As shown in the drawings, by arranging the sleeve 901, the movable cylinder 902 and the movable block 903 and other components in the support housing 904, and separating them from the base 1, installation during factory production is facilitated. At the same time, through the arrangement of the gear ring 905, the transmission gear 906 and the handle and other components, it is convenient for the worker to rotate the handle and adjust the position of the movable cylinder 902.

[0031] In the embodiment, each of the door plates 6 is made of high-strength transparent plastic material (for example, polycarbonate material), and the inner side surface of each of the door plates 6 is detachably connected with a protective plate 12 through buckling, the surface of each of the protective plates 12 is provided with a plurality of through holes, wherein each of the protective plates 12 is arranged at intervals with the surface of the door plate 6, a plurality of displacement meters 13 for detecting the concrete block 14 are also attached to the surface of each of the door plates 6, and the plurality of displacement meters 13 are uniformly arranged at intervals along the length direction of the concrete block 14, and the working end of the displacement meter 13 passes through the corresponding through hole and faces the concrete block 14.

[0032] In combination with the drawings, the door plate 6 made of transparent material is convenient for the staff to observe the compression condition of the concrete block 14, the protective plate 12 can effectively reduce the damage to the door plate 6 caused by the compression and cracking of the concrete block 14, and the displacement meter 13 is arranged on the surface of the door plate 6, after the door plates 6 are closed, all the displacement meters 13 can detect the plurality of side surfaces of the concrete block 14, and more detailed experimental data can be obtained.

[0033] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A device for testing the compressive strength of both ends of a concrete member, comprising a base (1), a support plate (2) fixed to the upper surface of the base (1), and a pressure-applying assembly disposed on the support plate (2), characterized in that: Four vertical guide columns (3) are provided between the base (1) and the support plate (2), and the four guide columns (3) are rectangularly distributed on the horizontal plane. The pressurizing component includes a telescopic cylinder (4) set on the upper surface of the support plate (2) and a movable plate (5) fixed to the working end of the telescopic cylinder (4). The movable plate (5) is horizontally set and slides through each guide column (3). Multiple door panels (6) are movably connected between the support plate (2) and the base (1), and each door panel (6) is vertically set and surrounds the support plate (2). Each guide column (3) consists of a longer first column (301) and a shorter one. The second column (302) is fixed to the support plate (2) at its upper end. The first column (301) is detachably connected to the lower end of the second column (302). The bottom end of the first column (301) is detachably connected to a lifting assembly (9). The lifting assembly (9) includes a sleeve (901) rotatably mounted on the base (1) and a movable cylinder (902) coaxially and threadedly connected inside the sleeve (901). The upper end face of the movable cylinder (902) is provided with a groove for placing the first column (301), and the movable cylinder (902) moves axially along the sleeve (901) under the action of the thread.

2. The compressive strength testing device for both ends of a concrete member according to claim 1, characterized in that: A movable block (903) is coaxially provided in the groove, and the movable block (903) is elastically slidably arranged along the axial direction of the movable cylinder (902). The upper end face of the movable block (903) is detachably connected to the lower end face of the second column (302).

3. The compressive strength testing device for both ends of a concrete member according to claim 2, characterized in that: The lifting assembly (9) also includes a support housing (904) detachably connected to the base (1). A notch for placing the support housing (904) is provided on one side surface of the base (1). The sleeve (901) is rotatably disposed inside the support housing (904). The upper end face of the movable cylinder (902) passes through the upper surface of the support housing (904).

4. The compressive strength testing device for both ends of a concrete member according to claim 3, characterized in that: The outer ring surface of the sleeve (901) is fitted with and fixed with a gear ring (905) coaxial with it. A horizontally arranged rotating rod (907) is rotatably connected to one side surface of the support housing (904). One end of the rotating rod (907) is fixed with a transmission gear (906) that meshes with the gear ring (905), and the other end is fixed with a handle located outside the support housing (904).

5. The compressive strength testing device for both ends of a concrete member according to claim 1, characterized in that: Each of the door panels (6) is made of high-strength transparent plastic material, and a protective plate (12) can be detachably connected to the inner surface of each door panel (6). Each of the protective plates (12) has multiple through holes on its surface.

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