Rebounding device for detecting compressive strength of concrete

Abstract

The utility model relates to the technical field of concrete compressive strength detection, and discloses a concrete compressive strength detection springback device which comprises a springback detector and a springback rod, the springback detector is sleeved with a connecting frame, the connecting frame is slidably connected with a sliding sleeve, a part capable of clamping the springback detector is connected into the sliding sleeve, and the springback detector is connected with the springback rod. The end, away from the elastic striking rod, of the connecting frame is connected with a labor-saving driving assembly. And the other end of the connecting frame is connected with a positioning assembly capable of temporarily positioning the springback detector. Compared with the prior art, the springback detector has the advantages that the springback detector is ensured to be stably vertical to a detection end face, the influence of inclination on a detection result is avoided, the springback detector is conveniently driven in a more labor-saving manner, and the labor load is conveniently reduced.

Description

Technical Field

[0001] This utility model relates to the field of concrete compressive strength testing technology, specifically to a concrete compressive strength testing rebound device. Background Technology

[0002] The concrete strength rebound tester consists of a shell, pointer, spring, hammer, impact rod, and other components. Its working principle is based on the interaction between elastic and inelastic collisions. The maximum rebound distance of the hammer is displayed as the rebound value (the ratio of the maximum rebound distance to the initial length of the spring). The rebound value is related to the compressive strength of concrete. The estimated value of the compressive strength of concrete can be obtained by looking up a table or calculating a formula.

[0003] The existing concrete strength rebound tester has a conical structure at one end with a sliding impact rod. The operator holds the conical end with one hand to keep the device perpendicular to the test surface, which is not very accurate. The other hand is used to apply force to the other end of the concrete strength rebound tester, making the operation cumbersome and laborious. Multiple test points are required, which increases the operator's workload. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The technical problem this invention aims to solve is that the perpendicularity between the probe and the test end face is not very accurate, making it difficult to apply pressure and increasing the operator's workload.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a concrete compressive strength testing rebound device, including a rebound tester and an impact rod, a connecting frame is externally fitted to the rebound tester, a sliding sleeve is slidably connected to the connecting frame, a clamping component for holding the rebound tester is connected inside the sliding sleeve, a force-saving driving component is connected to one end of the connecting frame away from the impact rod, and a positioning component for temporarily positioning the rebound tester is connected to the other end of the connecting frame.

[0008] Furthermore, the connecting frame includes fixed rings at both ends, and a plurality of guide rods are connected between the fixed rings. The sliding sleeve is circumferentially connected with guide holes, and the guide holes slide in cooperation with the guide rods. The cooperation of the fixed rings, sliding sleeves, guide rods and guide holes facilitates the sliding of the rebound detector, so that the rebound detector can stably squeeze the impact rod, thereby completing the squeezing and retraction of the impact rod.

[0009] Furthermore, the driving assembly includes a driving rod hinged to a fixed ring at the end away from the positioning assembly. A hinge seat is connected to the driving rod, and a hinge rod is hinged to the driving rod through the hinge seat. A sliding sleeve is hinged to the other end of the hinge rod. The cooperation of the driving rod, hinge seat, hinge rod, and sliding sleeve facilitates the driving rod to drive the hinge rod to drive the sliding sleeve through the hinge seat, thereby allowing a smaller force to be applied to drive the rebound detector.

[0010] Furthermore, the free end of the drive rod is provided with an anti-slip layer. The anti-slip layer increases friction with the drive rod, thereby facilitating effective driving.

[0011] Furthermore, the distance from the hinge seat to the fixed ring is less than the length of the drive rod, which allows for the use of less force to drive the drive rod.

[0012] Furthermore, the positioning component includes a ring tube connected within a fixed ring, a negative pressure system connected to the ring tube, and a plurality of support tubes circumferentially connected to the fixed ring. A suction cup is connected to the other end of the support tube. The free end of the support tube is used to perform adsorption and positioning of the surface to be tested by the suction cup in conjunction with the negative pressure system and the ring tube, while the support tube can support the connecting frame.

[0013] III. Beneficial Effects

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. By coordinating the rebound detector, impact rod, connecting frame, sliding sleeve, clamping component, and drive assembly, the rebound detector is first clamped and limited by the clamping component, connecting it to the sliding sleeve. Then, by activating the drive assembly, the drive assembly can drive the sliding sleeve to slide the rebound detector downward with less effort based on the lever principle, thereby causing the impact rod to retract into the rebound detector.

[0016] 2. The positioning component facilitates the placement of the device perpendicular to the surface to be tested and allows for temporary limiting connections, which in turn facilitates the driving component's control of the rebound tester. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a concrete compressive strength testing rebound device according to this utility model.

[0018] Figure 2 This is a top view schematic diagram of a concrete compressive strength testing rebound device according to the present invention.

[0019] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0020] Figure 4 yes Figure 3 A schematic diagram of the structure of B in the middle.

[0021] As shown in the figure: 1. Rebound detector, 2. Impact rod, 3. Sliding sleeve, 4. Clamping component, 5. Fixing ring, 6. Guide rod, 7. Drive rod, 8. Hinge seat, 9. Hinge rod, 10. Anti-slip layer, 11. Ring tube, 12. Support tube, 13. Suction cup. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Combined with appendix Figure 1 , Figure 2 and Figure 3 A rebound device for testing the compressive strength of concrete includes a rebound tester 1 and an impact rod 2. The rebound tester 1 is fitted with a connecting frame, and a sliding sleeve 3 is slidably connected to the connecting frame. The connecting frame includes fixed rings 5 ​​at both ends, and a plurality of guide rods 6 are connected between the fixed rings 5. The sliding sleeve 3 is circumferentially connected with guide holes, which slide in cooperation with the guide rods 6. A clamping component 4 for holding the rebound tester 1 is connected inside the sliding sleeve 3. A force-saving driving component is connected to the end of the connecting frame away from the impact rod 2. The driving component includes a driving rod 7 hinged to the fixed ring 5 at the end away from the positioning component. An anti-slip layer 10 is connected to the free end of the driving rod 7. A hinge seat 8 is connected to the driving rod 7. A hinge rod 9 is hinged to the driving rod 7 through the hinge seat 8. The other end of the hinge rod 9 is hinged to the sliding sleeve 3. The distance from the hinge seat 8 to the fixed ring 5 is less than the length of the driving rod 7.

[0025] The coordinated arrangement of the rebound detector 1, impact rod 2, connecting frame, sliding sleeve 3, clamping component 4, and drive assembly in the above structure makes it easier to drive the rebound detector with less effort.

[0026] Example 2

[0027] Based on Example 1, combined with Appendix Figure 1 , Figure 3 and Figure 4The other end of the connecting frame is connected to a positioning component that can temporarily position the rebound detector 1. The positioning component includes a ring tube 11 connected to the fixed ring 5. A negative pressure system is connected to the ring tube 11. The fixed ring 5 is circumferentially connected to a plurality of support tubes 12. The other end of the support tube 12 is connected to a suction cup 13.

[0028] The specific usage method is as follows:

[0029] First, the springback detector 1 is clamped and limited by the clamping component 4, so that it is connected to the sliding sleeve 3. The positioning component makes it easy to place the device vertically to the surface to be tested and make temporary limiting connection. The free end of the support tube 12 is suction cup 13 in conjunction with the negative pressure system and the ring tube 11 to adsorb and position the surface to be tested. The support tube 12 can support the connecting frame so that the springback detector 1 is vertical to the surface to be tested, which facilitates the drive component to drive the springback detector 1.

[0030] Then, by activating the drive assembly, the drive assembly, based on the lever principle, can drive the sliding sleeve 3 to slide the rebound detector 1 downwards with less effort. The cooperative arrangement of the drive rod 7, hinge seat 8, hinge rod 9, and sliding sleeve 3 facilitates the drive rod 7 to drive the hinge rod 9 to drive the sliding sleeve 3 through the hinge seat 8. Since the distance from the hinge seat 8 to the fixed ring 5 is less than the length of the drive rod 7, less force can be used to drive the drive rod 7. The cooperative arrangement of the fixed ring 5, sliding sleeve 3, guide rod 6, and guide hole facilitates the sliding of the rebound detector 1, allowing the rebound detector 1 to stably squeeze the impact rod 2, thereby completing the squeezing and retraction of the impact rod 2. The anti-slip layer 10 increases the friction with the drive rod 7, thus facilitating effective driving.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A concrete compressive strength testing rebound device, comprising a rebound tester (1) and a rebound rod (2), characterized in that: The rebound detector (1) is fitted with a connecting frame, and a sliding sleeve (3) is slidably connected on the connecting frame. A clamping component (4) for holding the rebound detector (1) is connected inside the sliding sleeve (3). A force-saving drive component is connected to the end of the connecting frame away from the impact rod (2). The other end of the connecting frame is connected to a positioning component that can temporarily position the rebound detector (1).

2. The concrete compressive strength testing rebound device according to claim 1, characterized in that: The connecting frame includes fixed rings (5) at both ends, and a plurality of guide rods (6) are connected between the fixed rings (5). The sliding sleeve (3) is provided with guide holes in the circumferential direction, and the guide holes are slidably engaged with the guide rods (6).

3. The concrete compressive strength testing rebound device according to claim 1, characterized in that: The drive assembly includes a drive rod (7) hinged to a fixed ring (5) at one end away from the positioning assembly. A hinge seat (8) is connected to the drive rod (7). A hinge rod (9) is hinged to the drive rod (7) through the hinge seat (8). A sliding sleeve (3) is hinged to the other end of the hinge rod (9).

4. The concrete compressive strength testing rebound device according to claim 3, characterized in that: The free end of the drive rod (7) is connected to an anti-slip layer (10).

5. A concrete compressive strength testing rebound device according to claim 3, characterized in that: The distance from the hinge seat (8) to the fixed ring (5) is less than the length of the drive rod (7).

6. The concrete compressive strength testing rebound device according to claim 1, characterized in that: The positioning component includes a ring tube (11) connected inside the fixing ring (5), a negative pressure system is connected to the ring tube (11), and a plurality of support tubes (12) are circumferentially connected to the fixing ring (5) around the ring tube (11), and a suction cup (13) is connected to the other end of the support tube (12).

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