A wall structure testing instrument for civil defense projects
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-08-14
AI Technical Summary
[0003]针对现有技术存在的不足,本实用新型目的是提供一种人防工程墙体结构检测仪,以解决现有的问题
设有配重球,使得敲击时可以用更小的力气造成更大的敲击力度;
Smart Images

Figure CN224636469U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a wall structure testing instrument for civil defense projects, belonging to the field of civil defense engineering technology. Background Technology
[0002] Early civil defense projects generally refer to those built in the 1980s and earlier. In the 1960s and 70s, in light of the international environment at the time, the central government issued the directive of "digging deep tunnels, storing grain widely, and never seeking hegemony," mobilizing the masses to wage a people's war and vigorously developing civil defense projects. Many early civil defense projects were built. On the one hand, due to the urgency of the situation, the relevant departments mainly considered the needs of war preparedness during the construction of civil defense projects, and therefore did not carry out unified and comprehensive planning and layout. On the other hand, due to objective constraints, the construction materials for civil defense projects during this period were limited, and there was a lack of standard basis and construction drawings. Moreover, most of them were built with locally sourced materials, which were primitive and the construction level was low. Therefore, some civil defense projects have certain inherent structural deficiencies, and these safety hazards are gradually becoming apparent over time. Because early civil defense projects are quite old and have been subjected to natural and human factors for a long time, their maintenance conditions vary. Currently, most of these early civil defense projects lack routine maintenance. Over decades, they have been affected by natural environmental factors and urban construction, resulting in the aging of their structural components and materials. Many parts exhibit corrosion, cracking, damage, and deformation, and some even pose structural safety hazards. This trend is expected to intensify over time. Such early civil defense projects not only fail to provide wartime protection but may also become potential sources of danger in peacetime, exacerbating and amplifying natural disasters in the city. Therefore, it is essential to conduct safety assessments and hazard investigations of early civil defense projects. Hollow walls are a type of defect that requires effective inspection. One method for inspection is tapping, but existing testing instruments can increase the workload of workers due to prolonged tapping on large areas, and they cannot effectively display the force of the tapping. Therefore, to address these issues, a wall structure testing instrument for civil defense projects is proposed. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a wall structure testing instrument for civil defense projects to solve the existing problems.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a wall structure testing instrument for civil defense engineering, the structure of which includes a hammer body and a handle body, the handle body being connected to the hammer body, the hammer body being composed of a hammer head end and a hammer tail end, the hammer head end and the hammer tail end being detachably connected, the inner cavity of the hammer tail end being a cavity, and a first pad block and a second pad block being respectively provided on both sides of the inner cavity of the hammer tail end, the inner cavity of the hammer tail end also having a counterweight ball located between the first pad block and the second pad block.
[0005] Furthermore, the hammer head end is provided with a display screen and the end of the hammer head end has a hammer head, and the hammer head and the hammer head end are detachably connected.
[0006] Furthermore, a screw is threadedly connected to one end of the hammer tail, and one end of the screw is connected to the second pad block.
[0007] Furthermore, the inner cavity of the hammer head end is provided with a power supply and a connection cavity, and an electromagnet is provided between the power supply and the connection cavity. The power supply is connected to the electromagnet and the display screen. The power supply has a power switch, which is a conventional setting and therefore not described in detail.
[0008] Furthermore, a connecting block is connected to the hammer head, one end of which can be attracted by an electromagnet and inserted into the connecting cavity.
[0009] Furthermore, the upper and lower ends of the connecting cavity are provided with upper contacts, the connecting block is provided with lower contacts, and the power supply provides power to the upper contacts.
[0010] Furthermore, the inner cavity at the end of the hammer head is provided with a pressure detection module, which is connected to the display screen and the power supply. The pressure detection module is a conventional technology, so it will not be described in detail.
[0011] The beneficial effects of this utility model are: It is equipped with a counterweight ball, which allows for greater striking force with less effort. The counterweight ball setting is adjustable, allowing you to choose whether or not to use a counterweight ball; The hammerhead is designed to be replaceable, allowing it to be adapted to hammerheads made of different materials in various situations. The hammerhead is equipped with a pressure detection module, which, together with the display screen, shows the hammering force in real time. Attached Figure Description
[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of a wall structure testing instrument for civil defense engineering according to this utility model; Figure 2This is a schematic diagram of the hammer tail end structure of a wall structure testing instrument for civil defense engineering according to this utility model; Figure 3 This is a schematic diagram of the hammer head structure of a wall structure testing instrument for civil defense engineering according to this utility model; Figure 4 This is a partially enlarged structural diagram of the wall structure testing instrument for civil defense engineering according to this utility model.
[0013] In the figure: 1. Hammer body; 2. Handle; 3. Hammer head end; 4. Hammer tail end; 5. First pad; 6. Second pad; 7. Counterweight ball; 8. Display screen; 9. Hammer head; 10. Screw; 11. Power supply; 12. Connecting cavity; 13. Electromagnet; 14. Connecting block; 15. Upper contact; 16. Lower contact; 17. Pressure detection module. Detailed Implementation
[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0015] Please see Figures 1-4 This utility model provides a technical solution for a wall structure testing instrument for civil defense projects: its structure includes a hammer body 1 and a handle 2, the handle 2 is connected to the hammer body 1, the hammer body 1 is composed of a hammer head end 3 and a hammer tail end 4, the hammer head end 3 and the hammer tail end 4 are detachably connected, the inner cavity of the hammer tail end 4 is a cavity and a first pad 5 and a second pad 6 are respectively provided on both sides of the inner cavity of the hammer tail end 4, the inner cavity of the hammer tail end 4 also has a counterweight ball 7 and the counterweight ball 7 is located between the first pad 5 and the second pad 6; The hammer head end 3 is provided with a display screen 8 and the end of the hammer head end 3 has a hammer head 9, and the hammer head 9 is detachably connected to the hammer head end 3. A screw 10 is threadedly connected to one end of the hammer tail end 4, and one end of the screw 10 is connected to the second pad block 6; The inner cavity of the hammer head end 3 is provided with a power supply 11 and a connecting cavity 12. An electromagnet 13 is provided between the power supply 11 and the connecting cavity 12. The power supply 11 is connected to the electromagnet 13 and the display screen 8. A connecting block 14 is connected to the hammer head 9. One end of the connecting block 14 can be attracted by the electromagnet 13 and the connecting block 14 can be inserted into the connecting cavity 12. The upper and lower ends of the connecting cavity 12 are provided with upper contacts 15, the connecting block 14 is provided with lower contacts 16, and the power supply 11 supplies power to the upper contacts 15. The inner cavity at the end of the hammer head 9 is provided with a pressure detection module 17, which is connected to the display screen 8 and the power supply 11.
[0016] For example, before use, select a hammer head 9 of appropriate material according to the situation, install it with the connecting block 14 and the connecting cavity 12 and fix it by electromagnet 13. Then, select whether to use the counterweight ball 7 according to the situation. By adjusting the screw 10, drive the second pad 6 to achieve the effect of compressing the movement space of the counterweight ball 7, thereby changing the use effect of the counterweight ball 7. When the hammer head 9 is connected, the upper contact 15 and the lower contact 16 contact each other and make the pressure detection module 17 energized. When striking, the striking pressure is displayed in real time on the display screen 8 via the pressure detection module 17, thus providing a clear visual indication of the striking force.
[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A wall structure testing instrument for civil defense projects, comprising a hammer body (1) and a handle body (2), wherein the handle body (2) is connected to the hammer body (1), characterized in that: The hammer body (1) is composed of a hammer head end (3) and a hammer tail end (4). The hammer head end (3) and the hammer tail end (4) are detachably connected. The inner cavity of the hammer tail end (4) is a hollow cavity, and a first pad (5) and a second pad (6) are respectively provided on both sides of the inner cavity of the hammer tail end (4). The inner cavity of the hammer tail end (4) also has a counterweight ball (7) and the counterweight ball (7) is located between the first pad (5) and the second pad (6).
2. The wall structure testing instrument for civil defense projects according to claim 1, characterized in that: The hammer head end (3) is provided with a display screen (8) and the end of the hammer head end (3) has a hammer head (9), and the hammer head (9) and the hammer head end (3) are detachably connected.
3. The civil defense engineering wall structure detector according to claim 2, characterized in that: A screw (10) is threadedly connected to one end of the hammer tail end (4), and one end of the screw (10) is connected to the second pad (6).
4. The civil defense engineering wall structure detector according to claim 3, characterized in that: The inner cavity of the hammer head end (3) is provided with a power supply (11) and a connecting cavity (12). An electromagnet (13) is provided between the power supply (11) and the connecting cavity (12). The power supply (11) is connected to the electromagnet (13) and the display screen (8).
5. The civil defense engineering wall structure detector according to claim 4, characterized in that: A connecting block (14) is connected to the hammer head (9). One end of the connecting block (14) can be attracted by an electromagnet (13) and the connecting block (14) is inserted into the connecting cavity (12).
6. The civil defense engineering wall structure detector according to claim 5, characterized in that: The upper and lower ends of the connecting cavity (12) are provided with upper contacts (15), the connecting block (14) is provided with lower contacts (16), and the power supply (11) supplies power to the upper contacts (15).
7. The civil defense engineering wall structure detector according to claim 6, characterized in that: The inner cavity at the end of the hammer (9) is provided with a pressure detection module (17), which is connected to the display screen (8) and the power supply (11).