Constructional engineering concrete hardness detection equipment

By combining the limiting sliding movable plate and the top hammer and pin, the problem of low accuracy in existing concrete hardness testing equipment is solved, achieving high-precision and convenient testing results.

CN223513072UActive Publication Date: 2025-11-04CHONGQING KAIZHOU DISTRICT XINHONGDA COMMERCIAL CONCRETE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421932811.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-11-04
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

Existing concrete hardness testing equipment in construction projects has low accuracy and is inconvenient to use, especially rebound hammers which are prone to problems, and the drop hammer and pin are difficult to align accurately.

Method used

A concrete hardness testing device for building engineering was designed. It adopts a movable plate structure with limited sliding, combined with a top hammer and a top needle. Through elastic connection and rubber layer protection, and with the help of a bubble level to adjust the levelness of the device, the testing accuracy is improved.

Benefits of technology

It achieves high-precision concrete hardness testing, ensuring the alignment of the pin and hammer, thus improving the accuracy and ease of use of the test.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223513072U_ABST
    Figure CN223513072U_ABST
Patent Text Reader

Abstract

The utility model discloses constructional engineering concrete hardness detection equipment which comprises an equipment cylinder body, a plurality of supporting rods are arranged on the outer side of the front end of the equipment cylinder body, the front ends of the supporting rods are jointly provided with an ejector pin cylinder, a first limiting groove is formed in the ejector pin cylinder, a first movable plate is arranged in the first limiting groove in a limiting and sliding mode, and an ejector pin is fixedly arranged on the front side of the first movable plate. A second limiting groove is formed in the equipment cylinder body, a second movable plate is arranged in the second limiting groove in a limiting and sliding mode, an ejector rod is arranged in the middle of the front end of the second movable plate, an ejector hammer is arranged at the end of the ejector rod, and a pull rod extending to the rear end outside the equipment cylinder body is arranged at the rear end of the second movable plate. And a spring sleeving the ejector rod is arranged on the rear side of the second movable plate in the equipment cylinder main body. Compared with the prior art, the device has the advantages that the front movable plate and the rear movable plate are arranged in a limiting and sliding manner, the rear end is elastic, and the holding-up hammer and the ejector pin are matched, so that the strength of a concrete wall surface can be detected.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a concrete hardness testing device for building engineering. Background Technology

[0002] Construction projects refer to all kinds of buildings and engineering facilities that provide the material and technical foundation for human life and production. Construction projects are organized, purposeful, and large-scale economic activities of humankind.

[0003] In construction projects, it is often necessary to test the hardness of the poured concrete. Hardness testing is generally done using rebound hammers and pendulum hammers. However, rebound hammers require high precision and are prone to malfunction. In actual use, the drop hammer and the pin are easily misaligned, resulting in poor testing accuracy. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-precision and easy-to-use concrete hardness testing device for building engineering, addressing the shortcomings mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a concrete hardness testing device for building engineering, including a device cylinder body, a plurality of support rods are connected to the outer side of the front end of the device cylinder body, a pin cylinder is connected to the front end of the plurality of support rods, a first limiting groove is provided inside the device cylinder body, a first movable plate is slidably provided in the first limiting groove, a pin is fixedly connected to the front side of the first movable plate, and a through hole for cooperating with the pin is provided on the front side of the pin cylinder.

[0006] The equipment cylinder body is provided with a second limiting groove, and a second movable plate is provided in the second limiting groove for limiting and sliding. A top rod is connected to the middle of the front end of the second movable plate, and a top hammer is connected to the end of the top rod. A pull rod extending to the rear end of the equipment cylinder body is connected to the rear end of the second movable plate. A spring that sleeves the top rod is connected to the rear side of the second movable plate inside the equipment cylinder body.

[0007] Furthermore, the outer side of the top hammer is wrapped with a rubber layer to provide protection.

[0008] Furthermore, the top rod extends to the outside and is connected to a pull handle, and the bottom of the equipment cylinder body is connected to a hand handle, which facilitates pulling the second movable plate and holding the equipment body.

[0009] Furthermore, the ejector cylinder is equipped with multiple first limiting rods that penetrate the first movable plate, and the equipment cylinder body is equipped with a second limiting rod that penetrates the second movable plate, which facilitates the stable movement of the first and second movable plates.

[0010] Further, the front end of the thimble barrel is connected with a plurality of support plates outside, the support plates are threadedly connected with adjusting bolts, and the top of the thimble barrel is connected with a bubble level, so that the equipment can be kept in a horizontal state for thimble detection operation.

[0011] Compared with the prior art, the building engineering concrete hardness detection equipment has the advantages that the front and rear movable plates are arranged in a limiting sliding mode, the rear end is elastically arranged, the strength detection operation can be performed on the concrete wall surface by cooperation of the top hammer and the thimble. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a first structural schematic view of the building engineering concrete hardness detection equipment.

[0013] Fig. 2 is a second structural schematic view of the building engineering concrete hardness detection equipment.

[0014] Fig. 3 is a sectional view of the building engineering concrete hardness detection equipment.

[0015] As shown in the drawings: 1, equipment barrel main body; 2, support rod; 3, thimble barrel; 4, first limiting groove; 5, first movable plate; 6, thimble; 7, through hole; 8, second limiting groove; 9, pull rod; 10, second movable plate; 11, top rod; 12, top hammer; 13, rubber layer; 14, spring; 15, pull handle; 16, first limiting rod; 17, second limiting rod; 18, support plate; 19, adjusting bolt; 20, bubble level; 21, hand-held handle. DETAILED DESCRIPTION

[0016] The utility model makes further detailed description in combination with the drawings.

[0017] In combination with the drawings Figs. 1-3 A building engineering concrete hardness detection equipment, including equipment barrel main body 1, the bottom of equipment barrel main body 1 is connected with hand-held handle 21, the front end of equipment barrel main body 1 is connected with a plurality of support rods 2 outside, a plurality of support rods 2 are connected with thimble barrel 3 in common at the front end, it is equipped with first limiting groove 4 in, first movable plate 5 is arranged in limiting sliding in first limiting groove 4, first movable plate 5 is fixedly connected with thimble 6 on the front side, the front side of thimble barrel 3 is equipped with the through hole 7 that cooperates thimble 6, namely in actual work time, need to reset thimble 6 and first movable plate 5 operation, then thimble barrel 3 is aimed at the concrete wall surface operation that needs to be detected.

[0018] The device cylinder body 1 is internally provided with a second limiting groove 8, the second limiting groove 8 is internally and limitingly and slidably provided with a second movable plate 10, the front end of the second movable plate 10 is internally and medially connected and provided with a jacking rod 11, the end of the jacking rod 11 is connected and provided with a hammer 12, the outer side of the hammer 12 is wrapped and provided with a rubber layer 13, the rear end of the second movable plate 10 is connected and provided with a pull rod 9 extending to the rear end outside the device cylinder body 1, the jacking rod 11 is externally connected and provided with a pulling handle 15, the device cylinder body 1 is internally and connected at the rear side of the second movable plate 10 and provided with a spring 14 sleeving the jacking rod 11;

[0019] In specific implementation: the pulling handle 15 is pulled to pull the pull rod 9 and the second movable plate 10, the spring 14 can provide elastic force operation to the second movable plate 10, in actual operation, the pull rod 11 needs to be pulled outward to the position, a mark can be arranged on the pull rod 11, the mark is pulled out, then the spring 14 can pop out the second movable plate 10, the first movable plate 5 is impacted through the jacking rod 11 and the hammer 12, then the dowel pin 6 impacts the concrete wall surface, the recess is knocked out, the slot depth detector is matched, according to different concrete strength, whether it is qualified can be calculated, the slot depth detector is a common device, when the drop hammer detection is used, the slot depth detector is also used.

[0020] The first limiting rod 16 and the second limiting rod 17 can ensure the stable sliding operation of the first movable plate 5 and the second movable plate 10, the outer side of the front end of the dowel pin cylinder 3 is connected and provided with a plurality of supporting plates 18, the supporting plate 18 is screw-connected and provided with an adjusting bolt 19, the top of the dowel pin cylinder 3 is connected and provided with a bubble level 20, when the dowel pin cylinder 3 is aligned with the wall surface, the levelness of the whole device can be adjusted through the adjusting bolt 19 matched with the bubble level 20, so that the detection precision can be correspondingly improved.

[0021] The above describes the utility model and its implementation mode, which is not limited, and the embodiment shown in the drawings is only one of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the utility model, without creative design, similar structure modes and embodiments of the technical scheme are designed, which should belong to the protection scope of the utility model.

Claims

1. A construction engineering concrete hardness testing apparatus comprising an apparatus barrel body (1), characterised in that: The equipment cylinder body (1) is connected with a plurality of support rods (2) on the outer side of the front end, the plurality of support rods (2) are jointly connected with a thimble cylinder (3) on the front end, the thimble cylinder (3) is internally provided with a first limiting groove (4), the first limiting groove (4) is internally provided with a first movable plate (5) which is limited to slide, the first movable plate (5) is fixedly connected with a thimble (6) on the front side, and the thimble cylinder (3) is provided with a through hole (7) which matches the thimble (6) on the front side. The equipment cylinder body (1) is internally provided with a second limiting groove (8), the second limiting groove (8) is internally provided with a second movable plate (10) which is limited to slide, the second movable plate (10) is connected with a jacking rod (11) on the front end, the jacking rod (11) is connected with a hammer (12) on the end, the second movable plate (10) is connected with a pull rod (9) which extends to the rear end of the equipment cylinder body (1) on the rear end, and the equipment cylinder body (1) is connected with a spring (14) which sleeves the jacking rod (11) on the rear side of the second movable plate (10).

2. The construction engineering concrete hardness detection equipment according to claim 1, characterized in that: The hammer (12) is wrapped with a rubber layer (13) on the outer side.

3. The construction engineering concrete hardness detection equipment according to claim 1, characterized in that: The jacking rod (11) is connected with a pulling handle (15) which extends to the outside, and the equipment cylinder body (1) is connected with a handheld handle (21) on the bottom.

4. The construction engineering concrete hardness detection equipment according to claim 1, characterized in that: The thimble cylinder (3) is connected with a plurality of first limiting rods (16) which penetrate the first movable plate (5) on the inside, and the equipment cylinder body (1) is connected with a second limiting rod (17) which penetrates the second movable plate (10) on the inside.

5. The construction engineering concrete hardness detection equipment according to claim 1, characterized in that: The thimble cylinder (3) is connected with a plurality of support plates (18) on the outer side of the front end, the support plates (18) are screw-connected with adjusting bolts (19), and the thimble cylinder (3) is connected with a bubble level (20) on the top.