A hollowing hammer for construction engineering supervision

CN224861586UActive Publication Date: 2026-10-16FUZHOU PLANNING DESIGN & RES INST
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Patent Information

Application Number
CN202522401909.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-12
Publication Date
2026-10-16
Estimated Expiration
2035-11-12

AI Technical Summary

Benefits of technology

其一:本实用新型通过设置有手柄、锤头一、锤头二、弹簧、限位杆和遮挡板,使连接杆一插入安装头的一侧,安装锤头二使连接杆二插入安装头的另一侧,连接杆一和连接杆二内弹簧连接的限位杆先被压缩在内部,连接杆一和连接杆二完全插入后,限位杆移动至插孔位置,在弹簧的作用下限位杆直接弹出插入插孔内部进行连接杆一和连接杆二的限位,推动遮挡板对限位杆进行遮挡防止误触脱落,拆卸时推动移开遮挡板,按压限位杆抽出连接杆一和连接杆二即可,解决了安装过程中多使用螺纹连接或蝶形螺栓连接,拆装操作复杂的问题,且通过限位杆插接使结构更稳定,避免锤头晃动不稳定的现象发生,提高了空鼓锤的使用效率;

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Abstract

The utility model relates to the technical field of air hammer, specifically is a kind of air hammer for construction engineering supervision, including handle and mounting head, further include: drum hammer mechanism, the drum hammer mechanism is set to the outside of mounting head;The drum hammer mechanism includes the installation groove one being opened in the one side of mounting head, the inner wall of installation groove one is inserted with connecting rod one, the one side outer wall of connecting rod one is fixedly connected with hammerhead one, the other side outer wall of mounting head is opened with installation groove two, the inner wall of installation groove two is inserted with connecting rod two, the one side outer wall of connecting rod two is fixedly connected with hammerhead two, the one side outer wall of connecting rod one and connecting rod two top end is opened with round groove one;The utility model solves the problem that more thread connection or butterfly bolt connection is used in installation process, and dismounting operation is complex, and more stable by limit rod insertion structure, avoid the phenomenon of hammerhead instability to occur, improve the use efficiency of air hammer.
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Description

Technical Field

[0001] This utility model relates to the field of hollow-sounding hammer technology, specifically a hollow-sounding hammer for construction engineering supervision. Background Technology

[0002] Hollow spots are caused by air in the original masonry and plaster layer. When testing, tapping the plaster layer and leveling layer will produce a hollow sound. A hollow spot hammer is needed when checking for hollow spots in building construction.

[0003] A search of Chinese patent CN211122692U reveals a hollow hammer for construction engineering supervision. This hammer features a threaded connector, connecting shaft, storage opening, nut, and wing bolt, allowing for the folding and storage of two hammer heads and a marking device, as well as the disassembly of the handle. This reduces space occupancy during storage, allowing more items to be placed in the bag. The marking mechanism facilitates the installation of chalk for marking, enabling workers to mark hollow areas after inspection, thus improving work efficiency.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. During the installation process, threaded connections or wing bolts are mostly used, which makes the disassembly and assembly operations complicated. Moreover, the threaded connection is easily loosened by the vibration of the hollow hammer, which leads to the phenomenon of unstable hammer head shaking and reduces the efficiency of the hollow hammer. Utility Model Content

[0005] The purpose of this utility model is to provide a hollow hammer for construction engineering supervision to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model is: a hollow-sounding hammer for construction engineering supervision, including a handle and a mounting head, and further comprising: A drumstick mechanism, wherein the drumstick mechanism is disposed outside the mounting head; The drumstick mechanism includes a mounting groove 1 on one side of the mounting head, a connecting rod 1 inserted into the inner wall of the mounting groove 1, a hammer head 1 fixedly connected to one side of the outer wall of the connecting rod 1, a mounting groove 2 on the other side of the mounting head, a connecting rod 2 inserted into the inner wall of the mounting groove 2, a hammer head 2 fixedly connected to one side of the outer wall of the connecting rod 2, a circular groove 1 on one side of the top of the connecting rod 1 and the connecting rod 2, a spring fixedly connected to the bottom inner wall of the circular groove 1, a limit rod fixedly connected to the top outer wall of the spring, circular groove 2 on both sides of the top of the mounting head, a damping shaft rotatably mounted on the inner wall of the circular groove 2, a baffle plate fixedly connected to the outer wall of the damping shaft, and an insertion hole on one side of the bottom outer wall of the circular groove 2.

[0007] Preferably, the limiting rod is adapted to the size of the insertion hole, the limiting rod is slidably connected to the inner wall of the first circular groove, and the baffle is slidably connected to the inner wall of the second circular groove.

[0008] Preferably, the size of the baffle plate is adapted to that of the limiting rod, and a threaded joint is fixedly connected to the bottom outer wall of the mounting head.

[0009] Preferably, the outer wall of the top end of the handle is provided with a threaded groove, the threaded connector is adapted to the size of the threaded groove, the outer wall of the handle is bonded with an anti-slip pad, and the outer wall of the top end of the baffle is provided with anti-slip texture.

[0010] Preferably, a horizontal bubble one is installed on the top outer wall of the mounting head, and a horizontal bubble two is installed on one side outer wall of the mounting head.

[0011] This utility model provides an improved hollow-sounding hammer for construction engineering supervision, which has the following improvements and advantages compared with the prior art: Firstly, this utility model, by including a handle, hammer head one, hammer head two, a spring, a limiting rod, and a baffle plate, allows connecting rod one to be inserted into one side of the mounting head, and hammer head two to be installed so that connecting rod two is inserted into the other side of the mounting head. The limiting rod, which is spring-connected to connecting rod one and connecting rod two, is initially compressed inside. After connecting rod one and connecting rod two are fully inserted, the limiting rod moves to the insertion hole position. Under the action of the spring, the limiting rod directly pops out and inserts into the insertion hole to limit connecting rod one and connecting rod two. The baffle plate is pushed to block the limiting rod to prevent accidental dislodgement. During disassembly, the baffle plate is pushed away, and the limiting rod is pressed to pull out connecting rod one and connecting rod two. This solves the problem of complicated disassembly and assembly operations caused by the use of threaded connections or wing bolts during installation. Furthermore, the insertion of the limiting rod makes the structure more stable, avoids the phenomenon of unstable hammer head wobbling, and improves the efficiency of the hollow hammer. Secondly, this utility model, by setting up an installation head, a level bubble one, and a level bubble two, and installing the level bubble one and the level bubble two on the outer wall of the installation head, can detect the levelness of the structure from both the horizontal and vertical directions, thereby increasing the accuracy of the inspection structure and improving the practicality of the hollow hammer. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the handle connection structure of this utility model; Figure 2 This is a three-dimensional schematic diagram of the mounting head of this utility model; Figure 3 This is a top view of the mounting head of this utility model; Figure 4 This is an exploded view of the connecting rod-connecting structure of this utility model.

[0013] Explanation of reference numerals in the attached figures: 1. Handle; 2. Mounting head; 3. Connecting rod one; 4. Hammer head one; 5. Level bubble one; 6. Level bubble two; 7. Connecting rod two; 8. Hammer head two; 9. Threaded connector; 10. Cover plate; 11. Limiting rod; 12. Insertion hole; 13. Damping shaft; 14. Anti-slip texture; 15. Spring. Detailed Implementation

[0014] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0015] This utility model provides an improved hollow-sounding hammer for construction engineering supervision. The technical solution of this utility model is as follows: like Figures 1-4 As shown, a hollow-sounding hammer for construction engineering supervision includes a handle 1 and a mounting head 2, and further includes: Drum hammer mechanism, the drum hammer mechanism is located outside the mounting head 2; The drumstick mechanism includes a mounting groove 1 on one side of the mounting head 2, a connecting rod 3 inserted into the inner wall of the mounting groove 1, and a hammer head 4 fixedly connected to the outer wall of one side of the connecting rod 3. A mounting groove 2 is formed on the outer wall of the other side of the mounting head 2, a connecting rod 7 inserted into the inner wall of the mounting groove 2, and a hammer head 8 fixedly connected to the outer wall of one side of the connecting rod 7. A circular groove 1 is formed on one side of the outer wall of the top of the connecting rod 3 and the connecting rod 7. A spring 15 is fixedly connected to the inner wall of the bottom of the circular groove 1, and a limit rod 11 is fixedly connected to the outer wall of the top of the spring 15. Circular grooves are formed on both outer walls of the top of the mounting head 2. The inner wall of the second circular groove is rotatably equipped with a damping shaft 13, and the outer wall of the damping shaft 13 is fixedly connected with a baffle plate 10. An insertion hole 12 is opened on one side of the outer wall of the bottom of the second circular groove. The hammer head 28 is installed so that the connecting rod 2 7 is inserted into the other side of the mounting head 2. The limiting rod 11 connected by the spring 15 inside the connecting rod 1 3 and the connecting rod 2 7 is first compressed inside. After the connecting rod 1 3 and the connecting rod 2 7 are fully inserted, the limiting rod 11 moves to the position of the insertion hole 12. Under the action of the spring 15, the limiting rod 11 directly pops out and inserts into the insertion hole 12 to limit the connection rod 1 3 and the connecting rod 2 7.

[0016] Furthermore, the size of the limiting rod 11 is adapted to the size of the insertion hole 12. The limiting rod 11 is slidably connected to the inner wall of the first circular groove, and the baffle plate 10 is slidably connected to the inner wall of the second circular groove. The size of the baffle plate 10 is adapted to the size of the limiting rod 11. The bottom outer wall of the mounting head 2 is fixedly connected to a threaded joint 9.

[0017] Furthermore, the top outer wall of the handle 1 is provided with a threaded groove, the threaded connector 9 is adapted to the size of the threaded groove, the outer wall of the handle 1 is bonded with an anti-slip pad, the top outer wall of the baffle plate 10 is provided with anti-slip texture 14, the top outer wall of the mounting head 2 is equipped with a level bubble 5, and one side outer wall of the mounting head 2 is equipped with a level bubble 6. By installing level bubbles 5 and 6 on the outer wall of the mounting head 2, the horizontality of the structure can be detected from the horizontal and vertical directions, thereby increasing the accuracy of the inspection.

[0018] Working principle: When installing a hollow hammer for construction engineering supervision, the mounting head 2 and handle 1 are connected by rotating the threaded connector 9. Then, the hammer head 4 is pressed, causing the connecting rod 3 to be inserted into one side of the mounting head 2. The hammer head 8 is then installed, causing the connecting rod 7 to be inserted into the other side of the mounting head 2. The limiting rod 11, connected by the spring 15 inside the connecting rod 3 and the connecting rod 7, is first compressed inside. After the connecting rod 3 and the connecting rod 7 are fully inserted, the limiting rod 11 moves to the position of the insertion hole 12. Under the action of the spring 15, the limiting rod 11 pops out and is inserted into the insertion hole 12 to limit the connection rod 3 and the connecting rod 7. The baffle plate 10 is pushed to cover the limiting rod 11 to prevent accidental dislodgement. To disassemble, the baffle plate 10 is pushed away, and the limiting rod 11 is pressed to pull out the connecting rod 3 and the connecting rod 7. A level bubble 5 and a level bubble 6 are installed on the outer wall of the mounting head 2 to check its levelness from the horizontal and vertical directions, increasing the accuracy of the structural inspection.

[0019] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A hollow-sounding hammer for construction engineering supervision, comprising a handle (1) and a mounting head (2), characterized in that: Also includes: A drum hammer mechanism is disposed outside the mounting head (2); The drum hammer mechanism includes a mounting groove 1 on one side of the mounting head (2), a connecting rod 1 (3) inserted into the inner wall of the mounting groove 1, a hammer head 1 (4) fixedly connected to one side of the outer wall of the connecting rod 1 (3), a mounting groove 2 on the other side of the mounting head (2), a connecting rod 2 (7) inserted into the inner wall of the mounting groove 2, a hammer head 2 (8) fixedly connected to one side of the outer wall of the connecting rod 2 (7), a circular groove 1 on one side of the top of the connecting rod 1 (3) and the connecting rod 2 (7), a spring (15) fixedly connected to the bottom inner wall of the circular groove 1, a limit rod (11) fixedly connected to the top outer wall of the spring (15), a circular groove 2 on both sides of the top of the mounting head (2), a damping shaft (13) rotatably provided on the inner wall of the circular groove 2, a baffle plate (10) fixedly connected to the outer wall of the damping shaft (13), and an insertion hole (12) on one side of the bottom outer wall of the circular groove 2.

2. The hollow-sounding hammer for construction engineering supervision according to claim 1, characterized in that: The size of the limiting rod (11) is adapted to the size of the insertion hole (12). The limiting rod (11) is slidably connected to the inner wall of the first circular groove, and the baffle plate (10) is slidably connected to the inner wall of the second circular groove.

3. A hollow-sounding hammer for construction engineering supervision according to any one of claims 1-2, characterized in that: The size of the baffle plate (10) is adapted to the size of the limiting rod (11), and the bottom outer wall of the mounting head (2) is fixedly connected with a threaded joint (9).

4. A hollow-sounding hammer for construction engineering supervision according to claim 3, characterized in that: The top outer wall of the handle (1) is provided with a threaded groove, the threaded connector (9) is adapted to the size of the threaded groove, the outer wall of the handle (1) is bonded with an anti-slip pad, and the top outer wall of the baffle plate (10) is provided with anti-slip texture (14).

5. A hollow-sounding hammer for construction engineering supervision according to claim 1, characterized in that: A horizontal bubble one (5) is installed on the top outer wall of the mounting head (2), and a horizontal bubble two (6) is installed on one side outer wall of the mounting head (2).

Citation Information

Patent Citations

  • Hollowing hammer for constructional engineering supervision

    CN211122692U