Concrete strength detector for concrete structure

Abstract

The utility model belongs to the technical field of concrete strength detection, and particularly relates to a concrete strength detector for a concrete structure, which comprises a limiting sleeve, a rebound apparatus main body is arranged in the limiting sleeve, a working thread is arranged on the outer wall of the limiting sleeve, and a knob is in threaded connection with the outer wall of the working thread. By arranging a limiting sleeve and a base plate, a rotary knob rotates to drive a limiting block on the inner wall of a connecting ring to slide along the outer wall of a limiting groove through a working thread, the connecting ring slides to drive three sets of supporting rods to synchronously move, then the connecting ring slides to drive a storage rod to rotate through the supporting rods, and the storage rod rotates to drive the base plate to rotate; the gasket is arranged on the base plate so that the base plate and the gasket can be located on the same vertical plane, then a worker places the gasket in a detection area, the rebound apparatus main body can be perpendicular to the detection area all the time during working through the arrangement of the limiting sleeve, and the situation that the detection accuracy of the rebound apparatus main body is reduced due to the fact that the rebound apparatus main body is not perpendicular to the detection area is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete strength detection, in particular to a concrete strength detector for concrete structures. Background Art

[0002] In construction projects, the strength of concrete is usually tested by using the rebound method to ensure quality. To test the strength of concrete by the rebound method, a rebound hammer is required. First, draw a test surface at the location to be tested, then press the rebound hammer for testing and read the data.

[0003] For example, a Chinese patent with publication number CN218496669U discloses a concrete strength tester for quality inspection of construction projects, which relates to the technical field of strength testers. The concrete strength tester for quality inspection of construction projects comprises a rebound tester, an L-shaped support plate and a mounting plate. The L-shaped support plate is arranged at the end of the rebound tester, and the mounting plate is arranged below the rebound tester. A box is fixedly arranged on the upper surface of the mounting plate, and a clamping assembly is arranged inside and outside the box. The clamping assembly comprises an arc-shaped clamping plate. Two arc-shaped clamping plates are arranged, and both arc-shaped clamping plates are movably arranged at the upper end of the box. The concrete strength tester for quality inspection of construction projects is simple to operate. By holding the handle, the rebound tester can be effectively prevented from falling due to hand slippage, thereby extending the service life of the rebound tester.

[0004] When an existing concrete strength tester for concrete structure is used, the rebound hammer is not perpendicular to the detection area, resulting in a decrease in the detection accuracy of the rebound hammer body. In view of this, we propose a concrete strength tester for concrete structure. Utility Model Content

[0005] The utility model aims to provide a concrete strength tester for concrete structure, so as to solve the problem that the rebound hammer proposed in the background technology is not perpendicular to the detection area, resulting in reduced detection accuracy of the rebound hammer body.

[0006] In view of this, the utility model provides a concrete strength tester for concrete structure, comprising a limiting sleeve, a rebound tester body is arranged inside the limiting sleeve, a working thread is arranged on the outer wall of the limiting sleeve, a knob is threadedly connected to the outer wall of the working thread, a connecting ring is screwed on the outer wall of the knob, a limiting block is fixedly connected to the inner wall of the connecting ring, a limiting groove is provided at the connecting portion between the limiting sleeve and the limiting block, a supporting rod is screwed on the outer wall of the connecting ring, a receiving rod screwed to one end of the limiting sleeve is screwed on one end of the supporting rod, a backing plate is fixedly connected to the outer wall of the receiving rod, and a washer fixedly connected to one end of the limiting sleeve is arranged on one side of the backing plate;

[0007] The pushing component is located at the bottom end of the limiting sleeve and is used to push the rebound tester body.

[0008] In this technical solution, the rotation of the knob drives the limit block on the inner wall of the connecting ring to slide along the outer wall of the limit groove through the working thread, and the sliding of the connecting ring drives the three groups of support rods to move synchronously. Then, the sliding of the connecting ring drives the storage rod to rotate through the support rod, and the rotation of the storage rod drives the pad to rotate, so that the pad and the gasket are located in the same vertical plane. Then, the staff places the gasket in the detection area. By setting the limit sleeve, it is beneficial for the rebound tester body to always be perpendicular to the detection area during operation, thereby avoiding the rebound tester body not being perpendicular to the detection area, which leads to a decrease in the detection accuracy of the rebound tester body.

[0009] In the above technical solution, further, the limit blocks are provided in three groups, and the connecting ring forms a sliding structure through the working thread and the limit blocks and the limit grooves.

[0010] In the technical solution, the rotation of the knob drives the limit block on the inner wall of the connecting ring to slide along the outer wall of the limit groove through the working thread, thereby realizing the control operation of stable sliding of the connecting ring.

[0011] In the above technical solution, further, the support rods are provided in three groups, and the storage rods form a rotating structure through the support rods and the limiting sleeves.

[0012] In the present technical solution, the sliding of the connecting ring drives the three groups of support rods to move synchronously, and then the sliding of the connecting ring drives the storage rods to rotate through the support rods, thereby realizing the rotation operation of the storage rods.

[0013] In the above technical solution, further, the washer is perpendicular to the limiting sleeve, and the washer and the backing plate are located in the same plane.

[0014] In this technical solution, the rotation of the storage rod drives the pad to rotate so that the pad and the gasket are located in the same vertical plane. Then, the staff places the gasket in the detection area. By setting a limit sleeve, the rebound tester body is always perpendicular to the detection area during operation, thereby avoiding the rebound tester body not being perpendicular to the detection area, which leads to a decrease in the detection accuracy of the rebound tester body.

[0015] In the above technical solution, further, the push component includes:

[0016] A pushing frame, the bottom end of the limiting sleeve is fixedly connected to the pushing frame, the bottom end of the pushing frame is fixedly connected to a fixed handle, the inner wall of the pushing frame is rotationally connected to a connecting rotating plate, the bottom end of the connecting rotating plate is movably connected to an active orifice plate, the inner wall of the active orifice plate is penetrated by a first limiting rod fixedly connected to the inner wall of the pushing frame, the top end of the connecting rotating plate is movably connected to a driven orifice plate, the inner wall of the driven orifice plate is penetrated by a second limiting rod fixedly connected to the inner wall of the pushing frame, and the top end of the driven orifice plate is fixedly connected to a push plate that fits with one end of the rebound instrument body.

[0017] In the present technical solution, the movable handle slides through the active orifice plate to drive the connecting rotating plate to rotate, and the rotation of the connecting rotating plate drives the push plate to slide along the outer wall of the second limit rod through the driven orifice plate, and the sliding of the push plate drives the rebound tester body to slide along the inner wall of the limit sleeve, and the concrete strength in the concrete structure is tested by the rebound value displayed in the rebound tester body. At the same time, by setting the rotation center of the connecting rotating plate at two-thirds of the connecting rotating plate, the effort-saving pushing operation of the rebound tester body is realized.

[0018] In the above technical solution, further, the connecting rotating plate forms a rotating structure between the fixed handle and the active orifice plate and the pushing frame.

[0019] In this technical solution, the movable handle slides through the active orifice plate to drive the connecting rotating plate to rotate, thereby realizing the rotation operation of the connecting rotating plate.

[0020] In the above technical solution, further, the push plate forms a sliding structure between the connecting rotating plate and the driven hole plate and the pushing frame, and the rotation center of the connecting rotating plate is located at two-thirds of the connecting rotating plate.

[0021] In the technical solution, by setting the rotation center of the connecting rotating plate at two-thirds of the connecting rotating plate, a labor-saving pushing operation of the rebound tester body is achieved.

[0022] In the above technical solution, further, the push plate has a disc-shaped appearance, and the center of the push plate coincides with the central axis of the rebound tester body.

[0023] In this technical solution, the rotation of the connecting rotating plate drives the push plate to slide along the outer wall of the second limit rod through the driven hole plate. The sliding of the push plate drives the rebound tester body to slide along the inner wall of the limit sleeve, thereby realizing the stable pushing operation of the rebound tester body.

[0024] The beneficial effects of the utility model are:

[0025] 1. By setting a limit sleeve and a pad, the knob is rotated to drive the limit block on the inner wall of the connecting ring to slide along the outer wall of the limit groove through the working thread, and the sliding of the connecting ring drives the three groups of support rods to move synchronously. Then the sliding of the connecting ring drives the storage rod to rotate through the support rod, and the rotation of the storage rod drives the pad to rotate, so that the pad and the gasket are located in the same vertical plane. Then, the staff places the gasket in the detection area. By setting a limit sleeve, it is beneficial for the rebound tester body to always be perpendicular to the detection area during operation, avoiding the rebound tester body not being perpendicular to the detection area, resulting in a decrease in the detection accuracy of the rebound tester body.

[0026] 2. By setting a connecting rotating plate and a push plate, the movable handle slides through the active orifice plate to drive the connecting rotating plate to rotate. The connecting rotating plate rotates through the driven orifice plate to drive the push plate to slide along the outer wall of the second limit rod. The sliding of the push plate drives the rebound tester body to slide along the inner wall of the limit sleeve. The concrete strength in the concrete structure is tested by the rebound value displayed in the rebound tester body. At the same time, by setting the rotation center of the connecting rotating plate to be located at two-thirds of the connecting rotating plate, the effort-saving pushing operation of the rebound tester body is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0029] Figure 3 This is a schematic cross-sectional view of the limit sleeve of the utility model;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the push frame of the utility model.

[0032] The symbols in the figure are:

[0033] 1. Limit sleeve; 2. Rebound tester body; 3. Working thread; 4. Knob; 5. Connecting ring; 6. Limit block; 7. Limit groove; 8. Support rod; 9. Storage rod; 10. Pad; 11. Washer; 12. Push frame; 13. Fixed handle; 14. Connecting rotating plate; 15. Active orifice plate; 16. First limit rod; 17. Movable handle; 18. Driven orifice plate; 19. Second limit rod; 20. Push plate. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0035] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0036] Embodiment 1:

[0037] The present embodiment provides a concrete strength detector for concrete structure, including a limiting sleeve 1, a rebound tester body 2 is arranged inside the limiting sleeve 1, a working thread 3 is arranged on the outer wall of the limiting sleeve 1, a knob 4 is threadedly connected to the outer wall of the working thread 3, a connecting ring 5 is screwed on the outer wall of the knob 4, a limiting block 6 is fixedly connected to the inner wall of the connecting ring 5, a limiting groove 7 is provided at the connection portion between the limiting sleeve 1 and the limiting block 6, a supporting rod 8 is screwed on the outer wall of the connecting ring 5, a receiving rod 9 screwed to one end of the limiting sleeve 1 is screwed on one end of the supporting rod 8, a backing plate 10 is fixedly connected to the outer wall of the receiving rod 9, and a washer 11 fixedly connected to one end of the limiting sleeve 1 is arranged on one side of the backing plate 10;

[0038] The pushing component is located at the bottom end of the limiting sleeve 1 and is used to push the rebound tester body 2.

[0039] Among them, the rotation of the knob 4 drives the limit block 6 on the inner wall of the connecting ring 5 to slide along the outer wall of the limit groove 7 through the working thread 3, and the sliding of the connecting ring 5 drives the three groups of support rods 8 to move synchronously, and then the sliding of the connecting ring 5 drives the storage rod 9 to rotate through the support rod 8, and the rotation of the storage rod 9 drives the pad 10 to rotate, so that the pad 10 and the washer 11 are located in the same vertical plane, and then the staff places the washer 11 in the detection area. By setting the limit sleeve 1, it is beneficial for the rebound tester body 2 to always be perpendicular to the detection area during operation, so as to avoid the rebound tester body 2 not being perpendicular to the detection area, resulting in a decrease in the detection accuracy of the rebound tester body 2.

[0040] Embodiment 2:

[0041] This embodiment provides a concrete strength tester for concrete structures. In addition to the technical solutions of the above embodiments, it also has the following technical features: three groups of limit blocks 6 are provided, and the connecting ring 5 forms a sliding structure through the working thread 3 and the limit blocks 6 and the limit grooves 7.

[0042] The knob 4 rotates to drive the limit block 6 on the inner wall of the connecting ring 5 to slide along the outer wall of the limit groove 7 through the working thread 3, thereby realizing the control operation of stable sliding of the connecting ring 5.

[0043] Embodiment 3:

[0044] This embodiment provides a concrete strength tester for concrete structures. In addition to the technical solutions of the above embodiments, it also has the following technical features: three groups of support rods 8 are provided, and the storage rods 9 form a rotating structure through the support rods 8 and the limiting sleeves 1.

[0045] The sliding of the connecting ring 5 drives the three groups of support rods 8 to move synchronously, and then the sliding of the connecting ring 5 drives the storage rods 9 to rotate through the support rods 8, thereby realizing the rotation operation of the storage rods 9.

[0046] Embodiment 4:

[0047] This embodiment provides a concrete strength tester for concrete structures. In addition to the technical solutions of the above embodiments, it also has the following technical features: the washer 11 is perpendicular to the limiting sleeve 1, and the washer 11 and the pad 10 are located in the same plane.

[0048] The storage rod 9 rotates to drive the pad 10 to rotate, so that the pad 10 and the washer 11 are located in the same vertical plane. Then, the staff places the washer 11 in the detection area. By setting the limit sleeve 1, it is beneficial for the rebound tester body 2 to always be perpendicular to the detection area during operation, thereby avoiding the rebound tester body 2 not being perpendicular to the detection area, resulting in a decrease in the detection accuracy of the rebound tester body 2.

[0049] Embodiment 5:

[0050] This embodiment provides a concrete strength detector for concrete structure, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the pushing component includes:

[0051] The pushing frame 12, the bottom end of the limiting sleeve 1 is fixedly connected with the pushing frame 12, the bottom end of the pushing frame 12 is fixedly connected with a fixed handle 13, the inner wall of the pushing frame 12 is screwed with a connecting rotating plate 14, the bottom end of the connecting rotating plate 14 is movably connected with an active orifice plate 15, the inner wall of the active orifice plate 15 is penetrated with a first limiting rod 16 fixedly connected to the inner wall of the pushing frame 12, the bottom end of the connecting rotating plate 14 is fixedly connected with a movable handle 17, the top of the connecting rotating plate 14 is movably connected with a driven orifice plate 18, the inner wall of the driven orifice plate 18 is penetrated with a second limiting rod 19 fixedly connected to the inner wall of the pushing frame 12, and the top of the driven orifice plate 18 is fixedly connected with a push plate 20 that fits with one end of the rebound tester body 2.

[0052] Among them, the movable handle 17 slides through the active orifice plate 15 to drive the connecting rotating plate 14 to rotate, and the connecting rotating plate 14 rotates through the driven orifice plate 18 to drive the push plate 20 to slide along the outer wall of the second limit rod 19, and the sliding of the push plate 20 drives the rebound tester body 2 to slide along the inner wall of the limit sleeve 1, and the concrete strength in the concrete structure is detected by the rebound value displayed in the rebound tester body 2. At the same time, by setting the rotation center of the connecting rotating plate 14 to be located at two-thirds of the connecting rotating plate 14, the effort-saving pushing operation of the rebound tester body 2 is realized.

[0053] Embodiment 6:

[0054] This embodiment provides a concrete strength tester for concrete structures. In addition to the technical solutions of the above embodiments, it also has the following technical features: the connecting rotating plate 14 forms a rotating structure with the pushing frame 12 through the fixed handle 13 and the active orifice plate 15.

[0055] The movable handle 17 slides through the active orifice plate 15 to drive the connecting rotating plate 14 to rotate, thereby realizing the rotation operation of the connecting rotating plate 14 .

[0056] Embodiment 7:

[0057] The present embodiment provides a concrete strength tester for concrete structures. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the push plate 20 forms a sliding structure with the push frame 12 through the connecting rotating plate 14 and the driven orifice plate 18, and the rotation center of the connecting rotating plate 14 is located at two-thirds of the connecting rotating plate 14.

[0058] Among them, by setting the rotation center of the connecting rotating plate 14 to be located at two-thirds of the connecting rotating plate 14, a labor-saving pushing operation of the rebound tester body 2 is achieved.

[0059] Embodiment 8:

[0060] This embodiment provides a concrete strength tester for concrete structures. In addition to the technical solutions of the above embodiments, it also has the following technical features: the push plate 20 is disc-shaped, and the center of the push plate 20 coincides with the central axis of the rebound tester body 2.

[0061] The connecting rotating plate 14 rotates through the driven hole plate 18 to drive the push plate 20 to slide along the outer wall of the second limiting rod 19, and the sliding of the push plate 20 drives the rebound tester body 2 to slide along the inner wall of the limiting sleeve 1, thereby realizing the stable pushing operation of the rebound tester body 2.

[0062] Working principle: First, the staff unfolds the pad 10, and turns the knob 4. The rotation of the knob 4 drives the limit block 6 on the inner wall of the connecting ring 5 to slide along the outer wall of the limit groove 7 through the working thread 3. The sliding of the connecting ring 5 drives the three groups of support rods 8 to move synchronously, and then the connecting ring 5 slides through the support rod 8 to drive the storage rod 9 to rotate, and the rotation of the storage rod 9 drives the pad 10 to rotate, so that the pad 10 and the washer 11 are located in the same vertical plane. Then, the staff places the washer 11 in the detection area. By setting the limit sleeve 1, it is beneficial for the rebound tester body 2 to always be perpendicular to the detection area during operation, so as to avoid the rebound tester body 2 not being perpendicular to the detection area, resulting in a decrease in the detection accuracy of the rebound tester body 2.

[0063] Finally, the staff drives the movable handle 17 and the fixed handle 13 to move relative to each other. The movable handle 17 slides through the active orifice plate 15 to drive the connecting rotating plate 14 to rotate. The connecting rotating plate 14 rotates through the driven orifice plate 18 to drive the push plate 20 to slide along the outer wall of the second limit rod 19. The sliding of the push plate 20 drives the rebound tester body 2 to slide along the inner wall of the limit sleeve 1. The concrete strength in the concrete structure is tested by the rebound value displayed in the rebound tester body 2. At the same time, by setting the rotation center of the connecting rotating plate 14 to be located at two-thirds of the connecting rotating plate 14, the effort-saving pushing operation of the rebound tester body 2 is realized.

[0064] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A concrete strength tester for concrete structure, characterized in that: include: A limit sleeve (1), wherein a rebound tester body (2) is arranged inside the limit sleeve (1), a working thread (3) is arranged on the outer wall of the limit sleeve (1), a knob (4) is threadedly connected to the outer wall of the working thread (3), a connecting ring (5) is screwed on the outer wall of the knob (4), a limit block (6) is fixedly connected to the inner wall of the connecting ring (5), a limit groove (7) is provided at the connection portion between the limit sleeve (1) and the limit block (6), a support rod (8) is screwed on the outer wall of the connecting ring (5), one end of the support rod (8) is screwed on a storage rod (9) screwed on one end of the limit sleeve (1), a backing plate (10) is fixedly connected to the outer wall of the storage rod (9), and a washer (11) fixedly connected to one end of the limit sleeve (1) is arranged on one side of the backing plate (10); A pushing component is located at the bottom end of the limiting sleeve (1) and is used to perform a pushing operation on the rebound tester body (2).

2. The concrete strength tester for concrete structure according to claim 1, characterized in that: The limit blocks (6) are provided in three groups, and the connecting ring (5) forms a sliding structure through the working thread (3) and the limit blocks (6) and the limit grooves (7).

3. The concrete strength tester for concrete structure according to claim 1, characterized in that: The support rods (8) are provided in three groups, and the storage rods (9) form a rotating structure through the support rods (8) and the limiting sleeves (1).

4. The concrete strength tester for concrete structure according to claim 1, characterized in that: The washer (11) is perpendicular to the limiting sleeve (1), and the washer (11) and the backing plate (10) are located in the same plane.

5. The concrete strength tester for concrete structure according to claim 1, characterized in that: The push component includes: A pushing frame (12), the bottom end of the limiting sleeve (1) is fixedly connected to the pushing frame (12), the bottom end of the pushing frame (12) is fixedly connected to a fixed handle (13), the inner wall of the pushing frame (12) is screwed with a connecting rotating plate (14), the bottom end of the connecting rotating plate (14) is movably connected to an active orifice plate (15), the inner wall of the active orifice plate (15) is penetrated by a first limiting rod (16) fixedly connected to the inner wall of the pushing frame (12), the bottom end of the connecting rotating plate (14) is fixedly connected to a movable handle (17), the top end of the connecting rotating plate (14) is movably connected to a driven orifice plate (18), the inner wall of the driven orifice plate (18) is penetrated by a second limiting rod (19) fixedly connected to the inner wall of the pushing frame (12), and the top end of the driven orifice plate (18) is fixedly connected to a pushing plate (20) fitted with one end of the rebound tester body (2).

6. The concrete strength tester for concrete structure according to claim 5, characterized in that: The connecting rotating plate (14) forms a rotating structure with the pushing frame (12) through the fixed handle (13) and the active orifice plate (15).

7. The concrete strength tester for concrete structure according to claim 5, characterized in that: The push plate (20) forms a sliding structure with the push frame (12) by connecting the rotating plate (14) and the driven hole plate (18), and the rotation center of the connecting rotating plate (14) is located at two-thirds of the connecting rotating plate (14).

8. The concrete strength tester for concrete structure according to claim 5, characterized in that: The push plate (20) has a disc-like shape, and the center of the push plate (20) coincides with the central axis of the rebound tester body (2).

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