Resiliometer for detecting strength of building concrete

Abstract

The utility model discloses a rebound apparatus for detecting the strength of building concrete, which belongs to the technical field of rebound apparatuses and comprises a shell, a lantern ring is sleeved on the outer wall of the shell in a sliding manner, sliding grooves are symmetrically formed in the side wall of the shell, sliding blocks are symmetrically and fixedly connected on the inner wall of the lantern ring, mounting blocks are symmetrically and fixedly connected on the outer wall of the lantern ring, and the mounting blocks are symmetrically and fixedly connected on the outer wall of the lantern ring. A connecting column is fixedly connected to the side wall of the mounting block, a U-shaped frame is fixedly connected to the end, away from the mounting block, of the connecting column, a connecting rod is fixedly connected between the U-shaped frames, a mounting groove is formed in the side wall of the shell, a spring is fixedly connected to the interior of the mounting groove, and a clamping block is fixedly connected to the tail end of the spring; the tail end of the clamping block extends to the outer side of the mounting groove, and a clamping groove is formed in the lantern ring. Compared with the prior art, the device has the advantages that the rebound apparatus can be conveniently stored, and meanwhile, the rebound apparatus can be more stably held by a hand during detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of rebound testers, in particular to a rebound tester for detecting strength of building concrete. Background Art

[0002] The basic principle of the rebound hammer is to use a spring to drive a heavy hammer. The heavy hammer hits the impact rod in vertical contact with the concrete surface with constant kinetic energy, causing the local concrete to deform and absorb part of the energy, and the other part of the energy is converted into the rebound kinetic energy of the heavy hammer. When the rebound kinetic energy is completely converted into potential energy, the heavy hammer rebounds to the maximum distance, and the instrument displays the maximum rebound distance of the heavy hammer in the name of rebound value.

[0003] Most of the existing rebound hammers for testing the strength of building concrete are cylindrical. Therefore, when testing the strength of concrete buildings, the outside of the cylinder needs to be held by hand and pressure needs to be applied in the direction of the concrete. As a result, sweating of the palms may cause slippage, thereby affecting the measurement results. Alternatively, the device installs a mechanism on the outer wall of the cylindrical rebound hammer to facilitate handholding, and such mechanism is fixed on the outside of the rebound hammer, which causes great inconvenience in storing the rebound hammer. Therefore, a rebound hammer for testing the strength of building concrete is urgently needed to solve this problem. Utility Model Content

[0004] The utility model aims to provide a rebound tester for testing the strength of building concrete, so as to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rebound tester for building concrete strength detection, comprising a shell for installing the rebound tester for building concrete strength detection, a display instrument is fixedly connected to the side wall of the shell, a collar is slidably sleeved on the outer wall of the shell, a sliding groove is symmetrically opened on the side wall of the shell, a slider is symmetrically fixedly connected to the inner wall of the collar, a mounting block is symmetrically fixedly connected to the outer wall of the collar, a connecting column is fixedly connected to the side wall of the mounting block, an end of the connecting column away from the mounting block is fixedly connected to a U-shaped frame, a connecting rod is fixedly connected between the U-shaped frames, a mounting groove is opened on the side wall of the shell, a spring is fixedly connected inside the mounting groove, a card block is fixedly connected to the end of the spring, and the end of the card block extends to the outside of the mounting groove, a card groove is opened inside the collar, a strip hole is opened inside the shell at one end, a lever is fixedly connected to the side wall of the card block, and the lever slides and extends to the outside of the strip hole.

[0006] Preferably, the end of the block extending to the outside of the installation groove is arc-shaped. Because the end of the block is arc-shaped, as the ring is continuously pushed, when the ring contacts the block, the ring will apply pressure to the block, thereby causing the block to move toward the inside of the installation groove.

[0007] Preferably, the inner wall of the installation groove is symmetrically provided with limiting grooves, and the side walls of the clamping block are symmetrically fixedly connected with limiting blocks.

[0008] Preferably, the limiting blocks symmetrically fixedly connected on the side walls of the clamping block are respectively slidably connected to the insides of two limiting grooves opened on the inner wall of the installation groove.

[0009] Preferably, rectangular blocks are symmetrically fixedly connected to the side walls of the two sliding blocks, and rectangular grooves are symmetrically opened on the inner walls of the two sliding grooves.

[0010] Preferably, the two rectangular blocks symmetrically fixedly connected on the side wall of the sliding block are respectively slidably connected to the inside of two rectangular grooves opened on the inner wall of the sliding groove.

[0011] Preferably, a soft cover is fixedly sleeved on the side walls of the two connecting rods, and the soft cover is a foam soft bag, thereby increasing the comfort of holding the two connecting rods.

[0012] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0013] When the strength of concrete needs to be tested by the rebound tester, the sleeve is firstly connected to the outer side of the shell body, and the two sliders are slid into the inside of the slide groove. Then, the two connecting rods are held and pushed toward the shell body. When the collar contacts the clamping block, the top surface of the clamping block is arranged in an arc shape, so that the clamping block moves toward the inside of the installation groove, thereby compressing the spring inside the clamping block. With the continuous movement of the collar, when the clamping groove provided inside the collar moves to be parallel with the clamping block, the spring will push the clamping block to return to the initial state until the clamping block is pushed and connected to the inside of the clamping groove provided on the inner wall of the collar, so as to limit the collar. Then, the rebound tester can be held with both hands to apply pressure to the concrete, so as to increase the stability of the rebound tester. When the test is completed, only the lever needs to be pressed downward along the strip hole to drive the clamping block to shrink toward the inside of the installation groove, so that the clamping block moves out of the inside of the clamping groove. At this time, the collar and the connecting rod can be removed, so as to facilitate the storage of the rebound tester. Compared with the prior art, the device can facilitate the storage of the rebound hammer and can also make the rebound hammer more stable when held during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the sleeve ring, slider, connecting rod, etc. in the utility model;

[0017] Figure 3 It is a planar cross-sectional view of the side view of the housing in the utility model;

[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure of part A.

[0019] Description of reference numerals:

[0020] In the figure: 1, housing; 3, display instrument; 4, collar; 5, slider; 6, slide groove; 7, mounting block; 8, connecting column; 9, U-shaped frame; 10, connecting rod; 11, mounting groove; 12, spring; 13, clamping block; 14, lever; 15, strip hole; 16, limit block; 17, rectangular block. DETAILED DESCRIPTION

[0021] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0022] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0023] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0024] like Figures 1 to 4The main structure of a rebound tester for building concrete strength detection is shown as follows: a shell 1, a display instrument 3 is fixedly connected to the side wall of the shell 1, a collar 4 is slidably sleeved on the outer wall of the shell 1, the diameter of the collar 4 is slightly larger than the diameter of the shell 1, and the inner wall of the collar 4 is slidably fitted on the outer wall of the shell 1, thereby the collar 4 is sleeved more firmly due to the small gap between the collar 4 and the shell 1, and a slide 5 is symmetrically opened on the side wall of the shell 1, and the inner wall of the collar 4 is symmetrically fixedly connected with a slider 5, and two sliders 5 fixedly connected to the inner wall of the collar 4 are respectively slidably connected to the inside of two slide grooves 6 opened on the side wall of the shell 1, so that the sliding direction of the collar 4 can be effectively limited by the two sliders 5, thereby preventing the collar 4 from rotating on the outer wall of the shell 1, and the length of the slide groove 6 is fixedly set, so the sliding stroke of the collar 4 can be limited by the slider 5;

[0025] The outer wall of the collar 4 is symmetrically fixedly connected with a mounting block 7, and a connecting column 8 is fixedly connected to the side wall of the mounting block 7. The end of the connecting column 8 away from the mounting block 7 is fixedly connected to a U-shaped frame 9, and a connecting rod 10 is fixedly connected between the two ends of the U-shaped frame 9. The connection between the connecting rod 10 and the U-shaped frame 9 can facilitate the user to grasp with both hands, thereby increasing the stability of the rebound tester. Soft sleeves are fixedly sleeved on the side walls of the two connecting rods 10. The soft sleeves can increase the user's comfort and prevent the hand from being excessively rubbed against the connecting rod 10, which may cause the hand to be injured. The skin is broken. At this time, thanks to the installation groove 11 opened on the side wall of the shell 1, the inside of the installation groove 11 is fixedly connected with a spring 12, and the end of the spring 12 is fixedly connected with a block 13. The end of the block 13 extends to the outside of the installation groove 11, and the end of the block 13 extending to the outside of the installation groove 11 is an arc-shaped setting. When the collar 4 is sleeved on the outer wall of the shell 1 and pushed in the direction of the block 13, when it contacts the block 13, at this time, because the top surface of the block 13 is an arc-shaped setting, the collar 4 will be pushed by the collar 4. The block 13 applies pressure, so that the block 13 moves toward the inside of the installation groove 11, thereby compressing the spring 12 inside the installation groove 11, until the block 13 is completely retracted into the inside of the installation groove 11, and at this time, the top surface of the block 13 will slide and fit on the inner wall of the collar 4. As the collar 4 is continuously pushed, when the groove opened on the inner wall of the collar 4 is parallel to the block 13, the spring 12 will push the block 13 to be clamped into the inside of the groove, thereby limiting the collar 4. When the block 13 limits the collar 4 At this time, the two sliders 5 on the inner wall of the collar 4 will also slide to the end of the slide groove 6. A strip hole 15 is opened at one end of the shell 1 to the inside thereof. A lever 14 is fixedly connected to the side wall of the block 13, and the lever 14 slides and extends to the outside of the strip hole 15. After the detection is completed, it is only necessary to press the lever 14 downward along the strip hole 15 to drive the block 13 to shrink into the inside of the installation groove 11, so that the block 13 moves out of the inside of the groove. At this time, the collar 4 and the connecting rod 10 can be removed, so as to facilitate the storage of the rebound tester.

[0026] Rectangular blocks 17 are symmetrically fixedly connected on the side walls of the two sliders 5, and rectangular grooves are symmetrically opened on the inner walls of the two slide grooves 6. The two rectangular blocks 17 symmetrically fixedly connected on the side walls of the sliders 5 are respectively slidably connected to the inside of the two rectangular grooves opened on the inner walls of the slide grooves 6. The two rectangular blocks 17 can effectively limit the sliding direction of the slider 5.

[0027] How it works

[0028] When using the rebound tester for building concrete strength testing, the collar 4 is first sleeved to the opposite outer sides of the shell 1, and at the same time, the two sliding blocks 5 symmetrically fixedly connected to the inner wall of the collar 4 are slid into the inside of the two sliding grooves 6 opened on the side wall of the shell 1, and then the two connecting rods 10 are held and the connecting rods 10 and the collar 4 are pushed toward the shell 1. When the collar 4 contacts the block 13, the top surface of the block 13 is set in an arc shape, so that the block 13 moves toward the inside of the installation groove 11, thereby compressing the spring 12 in the installation groove 11. As the collar 4 continues to move, when the groove opened in the collar 4 is compressed, When it moves to be parallel with the block 13, the spring 12 will push the block 13 to return to its initial state until the block 13 is pushed to be connected to the inside of the slot opened on the inner wall of the collar 4, so as to limit the collar 4. Then, the connecting rod 10 can be held with both hands to drive the rebound test hammer to apply pressure to the concrete, so as to increase the stability of the rebound test hammer. When the detection is completed, it is only necessary to press the lever 14 downward along the strip hole 15 to drive the block 13 to shrink into the inside of the installation groove 11, so that the block 13 is moved out of the inside of the slot. At this time, the collar 4 and the connecting rod 10 can be removed, so as to facilitate the storage of the rebound test hammer.

[0029] It should be noted that, in this article, relational terms such as one and two 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 sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rebound test hammer for testing the strength of building concrete, comprising a housing (1) for installing the rebound test hammer for testing the strength of building concrete, characterized in that: A display instrument (3) is fixedly connected to the side wall of the shell (1), a collar (4) is slidably sleeved on the outer wall of the shell (1), a slide groove (6) is symmetrically provided on the side wall of the shell (1), a slider (5) is symmetrically fixedly connected to the inner wall of the collar (4), a mounting block (7) is symmetrically fixedly connected to the outer wall of the collar (4), a connecting column (8) is fixedly connected to the side wall of the mounting block (7), a U-shaped frame (9) is fixedly connected to one end of the connecting column (8) away from the mounting block (7), and a connecting rod is fixedly connected between the U-shaped frames (9). (10), a mounting groove (11) is provided on the side wall of the shell (1), a spring (12) is fixedly connected inside the mounting groove (11), a clamping block (13) is fixedly connected to the end of the spring (12), and the end of the clamping block (13) extends to the outside of the mounting groove (11), a clamping groove is provided inside the sleeve (4), a strip hole (15) is provided at one end of the shell (1) toward the inside, a lever (14) is fixedly connected to the side wall of the clamping block (13), and the lever (14) slidably extends to the outside of the strip hole (15).

2. The rebound hammer for testing building concrete strength according to claim 1, characterized in that: One end of the clamping block (13) extending to the outside of the mounting groove (11) is arranged in an arc shape.

3. The rebound hammer for testing building concrete strength according to claim 1, characterized in that: The inner wall of the installation groove (11) is symmetrically provided with limiting grooves, and the side wall of the clamping block (13) is symmetrically fixedly connected with a limiting block (16).

4. The rebound hammer for testing building concrete strength according to claim 3, characterized in that: The limiting blocks (16) symmetrically fixedly connected on the side wall of the clamping block (13) are respectively slidably connected to the inside of two limiting grooves opened on the inner wall of the installation groove (11).

5. The rebound hammer for testing building concrete strength according to claim 1, characterized in that: Rectangular blocks (17) are symmetrically fixedly connected to the side walls of the two sliding blocks (5), and rectangular grooves are symmetrically opened on the inner walls of the two sliding grooves (6).

6. The rebound hammer for testing building concrete strength according to claim 5, characterized in that: The two rectangular blocks (17) symmetrically fixedly connected on the side wall of the sliding block (5) are respectively slidably connected to the inside of two rectangular grooves opened on the inner wall of the sliding groove (6).

7. The rebound hammer for testing building concrete strength according to claim 1, characterized in that: A soft sleeve is fixedly sleeved on the side walls of the two connecting rods (10).

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