Construction engineering detection device

Abstract

This utility model relates to the field of building engineering testing equipment technology, and in particular to a building engineering testing device. The building engineering testing device provided by this utility model includes a feeler gauge assembly, a telescopic assembly, and a ball head. A first mounting part is provided at one end of the feeler gauge assembly along the extension direction, and a second mounting part is provided on one side of the feeler gauge assembly along the extension direction. A third mounting part is provided at one end of the telescopic assembly, and the third mounting part is detachably connected to the first mounting part and the second mounting part. The ball head is connected to the end of the telescopic assembly away from the third mounting part. The building engineering testing device provided by this utility model can meet the requirements of force transmission effect for hollow detection and the requirements of operational flexibility for high-altitude gap measurement.

Description

Technical Field

[0001] This utility model relates to the field of building engineering testing equipment technology, and in particular to a building engineering testing device. Background Technology

[0002] Building quality inspection is a crucial step in ensuring building safety and quality. Among the key aspects, gap measurement and wall hollowness detection are two fundamental and essential. Gap measurement primarily checks whether the gaps between doors and windows, the width of wall cracks, and construction joints meet the required specifications. Wall hollowness detection mainly checks for voids between the plaster layer, tiles, and the substrate; these voids can affect the structural stability and lifespan of the wall.

[0003] Currently, independent, specialized tools are commonly used in building construction inspections for the aforementioned testing tasks. Feeler gauges are typically used for measuring gaps, and hollow wall surfaces are usually detected using a hollow wall detection hammer. However, with the development of testing needs, some integrated testing tools have also emerged.

[0004] However, in actual construction engineering inspection work, the inspection scenarios are diverse and complex. For gap measurement, it is necessary to measure gaps that are easily accessible at low locations as well as gaps that are difficult to access at high locations; for hollow area detection, it is necessary to inspect walls at normal heights as well as walls at higher locations. Although existing integrated inspection devices can achieve functional integration to a certain extent, the connection design of their telescopic components has limitations, making it impossible to form the most suitable tool configuration according to the needs of different inspection scenarios.

[0005] Specifically, existing telescopic components typically connect to feeler gauge components using only a fixed method, limiting the device's applicability in various testing scenarios. When measuring gaps at heights, the device needs an easily maneuverable angle configuration to accommodate confined operating spaces; when detecting hollow areas in walls, it needs a straight-line configuration for optimal force transmission to ensure effective tapping. Existing technologies cannot meet these diverse usage requirements through flexible adjustments to the telescopic component connection method. Utility Model Content

[0006] This utility model provides a building engineering testing device that can meet both the requirements for force transmission effect in hollow detection and the requirements for operational flexibility in high-altitude gap measurement.

[0007] This utility model provides a building engineering testing device, including: a feeler gauge assembly, one end of which is provided with a first mounting part along the extension direction, and a second mounting part on one side of which is provided along the extension direction; a telescopic assembly, one end of which is provided with a third mounting part, the third mounting part being detachably connected to the first mounting part and also detachably connected to the second mounting part; and a ball head connected to the end of the telescopic assembly away from the third mounting part.

[0008] In one possible implementation, the first and second mounting parts are threaded grooves, and the third mounting part is a stud that is threadedly engaged with the threaded groove.

[0009] In one possible implementation, the feeler gauge assembly includes: a feeler gauge body, with a second mounting portion on one side of the feeler gauge body; and a handle connected to an end of the feeler gauge body, with a first mounting portion at the end of the handle away from the feeler gauge body.

[0010] In one possible implementation, the measuring surface of the feeler gauge body is provided with scale lines, and the feeler gauge assembly also includes a movable vernier that can slide along the measuring surface to measure the gap size in conjunction with the scale lines.

[0011] In one possible implementation, the feeler gauge body has sliding grooves on both sides of the measuring surface, and the movable vernier slides in conjunction with the sliding grooves.

[0012] In one possible implementation, the outer surface of the handle has an anti-slip structure.

[0013] In one possible implementation, the telescopic assembly includes multiple layers of telescopic tubes nested sequentially, with reinforcing grooves along the circumferential direction for reinforcing adjacent layers of telescopic tubes.

[0014] In one possible implementation, each layer of the telescopic tube is provided with at least two reinforcing grooves.

[0015] In one possible implementation, when the third mounting part is connected to the first mounting part, a linear structure is formed for detecting hollow areas in the wall; when the third mounting part is connected to the second mounting part, an L-shaped structure is formed for measuring gaps at heights.

[0016] In one possible implementation, the ball head is a solid structure.

[0017] The building engineering testing device provided by this utility model has a first mounting part at one end of the feeler gauge assembly along the extension direction and a second mounting part at one side along the extension direction. The third mounting part of the telescopic assembly can be detachably connected to both the first mounting part and the second mounting part. This selective connection design of the dual mounting parts fundamentally changes the connection mode between the telescopic assembly and the feeler gauge assembly. The first mounting part is located at the end of the feeler gauge assembly. When the third mounting part is connected to it, the telescopic assembly and the feeler gauge assembly form an axially extending straight-line configuration. This configuration minimizes and directly transmits force from the handle to the ball head, ensuring lossless transmission of striking force. This produces a clear and powerful tapping sound during wall hollowness detection, facilitating accurate assessment of internal wall voids. The second mounting part is located on the side of the feeler gauge assembly. When the third mounting part is connected to it, the telescopic assembly forms an angled configuration relative to the feeler gauge assembly. This angled configuration allows the operator to simultaneously control two operating components in different directions from a fixed position. When measuring gaps at heights, the feeler gauge can accurately reach the measurement position without adjusting the operator's own position, making it particularly suitable for use in confined spaces. Through simple disassembly and reconnection, the operator can quickly switch between the two connection methods depending on the specific testing scenario. This allows the same device to meet both the force transmission requirements for hollowness detection and the operational flexibility requirements for height measurements. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an exploded structural diagram of a building engineering testing device provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of a building engineering testing device provided by this utility model when the third installation part is connected to the first installation part.

[0021] Figure 3 This is a schematic diagram of the structure of a building engineering testing device provided by this utility model when the third installation part is connected to the second installation part.

[0022] Figure 4 yes Figure 1 A structural diagram from another angle.

[0023] Figure label: 1. Feeler gauge assembly; 11. First mounting part; 12. Second mounting part; 13. Feeler gauge body; 131. Measuring surface; 132. Scale line; 133. Sliding groove; 14. Handle; 141. Anti-slip structure; 15. Moving vernier; 2. Telescopic assembly; 21. Third mounting part; 22. Telescopic tube; 23. Reinforcing groove; 3. Ball head. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The following is combined Figure 1-4 This invention describes a construction engineering testing device, comprising: a feeler gauge assembly 1, with a first mounting portion 11 at one end along the extension direction and a second mounting portion 12 at one side along the extension direction; a telescopic assembly 2, with a third mounting portion 21 at one end, the third mounting portion 21 being detachably connected to the first mounting portion 11 and the second mounting portion 12; and a ball head 3 connected to the end of the telescopic assembly 2 away from the third mounting portion 21.

[0026] In this utility model, a first mounting part 11 is provided at one end of the feeler gauge assembly 1 along the extension direction, and a second mounting part 12 is provided on one side along the extension direction. The third mounting part 21 of the telescopic assembly 2 can be detachably connected to both the first mounting part 11 and the second mounting part 12. This selective connection design of the dual mounting parts fundamentally changes the connection mode between the telescopic assembly 2 and the feeler gauge assembly 1.

[0027] The first mounting part 11 is located at the end of the feeler gauge assembly 1. When the third mounting part 21 is connected to it, the telescopic component 2 and the feeler gauge assembly 1 form an axially extending straight-line configuration. This configuration minimizes the force transmission path from the handle 14 to the ball head 3, allowing the striking force to be transmitted to the ball head 3 without loss. This produces a clear and powerful striking sound during wall hollowness detection, facilitating accurate judgment of the internal voids in the wall. The second mounting part 12 is located on the side of the feeler gauge assembly 1. When the third mounting part 21 is connected to it, the telescopic component 2 forms an inclined configuration relative to the feeler gauge assembly 1 at a certain angle. This angle configuration allows the operator to control two operating parts in different directions simultaneously from a fixed position. When measuring gaps at heights, the feeler gauge can accurately reach the measurement position without adjusting its own position, making it particularly suitable for use in narrow operating spaces. Through simple disassembly and reconnection, the operator can quickly switch between the two connection methods according to the specific testing scenario, enabling the same device to meet both the force transmission requirements for hollowness detection and the operational flexibility requirements for height measurements.

[0028] Specifically, when the third mounting part 21 of the telescopic assembly 2 is connected to the first mounting part 11 of the feeler gauge assembly 1, the telescopic assembly 2 and the feeler gauge assembly 1 form a straight-line arrangement; when the third mounting part 21 is connected to the second mounting part 12, since the second mounting part 12 is located on the side of the feeler gauge assembly 1, the telescopic assembly 2 and the feeler gauge assembly 1 form a vertical or inclined angular arrangement. Through simple disassembly and reconnection operations, the operator can achieve two different structural forms on the same device.

[0029] In one specific embodiment, when inspecting wall quality, construction engineers first connect the third mounting part 21 to the first mounting part 11, using the formed linear structure to detect wall hollowness by tapping the wall with the ball head 3 to determine the internal voids. Subsequently, when measuring wall gaps, the third mounting part 21 is disassembled and reconnected to the second mounting part 12, using the formed L-shaped structure to measure gaps in high or narrow locations. The entire switching process requires no additional tools, significantly improving the continuity and efficiency of the inspection work.

[0030] In related technologies, existing building inspection tools are usually designed with a single function. Hollow-out hammers and feeler gauges exist as separate tools. Inspectors need to carry multiple tools at the same time to complete comprehensive quality inspection work, which not only increases the complexity of tool management, but also leads to frequent tool changes during the inspection process, affecting work efficiency.

[0031] In this embodiment of the utility model, by setting two mounting interfaces at different positions, namely the first mounting part 11 and the second mounting part 12, on the feeler gauge assembly 1, and cooperating with the third mounting part 21 on the telescopic assembly 2, the technical effect of one device undertaking multiple detection functions is achieved, which solves the problem of needing to carry multiple independent tools in the prior art. At the same time, the modular connection method ensures the professionalism and reliability of various detection functions.

[0032] In some embodiments, the first mounting portion 11 and the second mounting portion 12 are threaded grooves, and the third mounting portion 21 is a stud that is threadedly engaged with the threaded groove.

[0033] In this utility model, the first mounting part 11 and the second mounting part 12 adopt a threaded groove structure, and the third mounting part 21 adopts a stud structure that is threaded with the threaded groove. Compared with other connection methods, the threaded connection method has the characteristics of firm connection, precise adjustment and convenient disassembly, which ensures a reliable connection between the telescopic component 2 and the feeler gauge component 1.

[0034] Specifically, the threaded groove and stud are connected through the interlocking of their helical surfaces. During the connection process, the stud gradually penetrates the threaded groove until the preset connection depth is reached. The thread pitch and tooth profile design ensure that the connection has sufficient tightening force to prevent loosening, while also allowing for quick disassembly by reverse rotation when needed. The self-locking characteristic of this connection method ensures that the connection will not accidentally loosen due to vibration or impact during the testing process.

[0035] In one specific embodiment, when inspectors perform wall hollowness detection, they need to generate sufficient impact force by striking the ball head 3. The threaded connection can withstand this impact load without loosening, ensuring the continuity of the inspection process. When measuring gaps, the fine-tuning characteristics of the threaded connection allow inspectors to precisely adjust the position of the telescopic component 2 to adapt to the measurement needs of different angles and depths.

[0036] In some embodiments, the feeler gauge assembly 1 includes: a feeler gauge body 13, with a second mounting portion 12 provided on one side of the feeler gauge body 13; and a handle 14 connected to the end of the feeler gauge body 13, with a first mounting portion 11 provided at the end of the handle 14 away from the feeler gauge body 13.

[0037] In this utility model, the feeler gauge assembly 1 includes two independent components: the feeler gauge body 13 and the handle 14. The feeler gauge body 13 is specifically responsible for the measurement function, while the handle 14 is specifically responsible for the gripping and connection functions. This functional separation design allows each part to be optimized for specific functions, thereby improving the overall performance of the device.

[0038] Specifically, the feeler gauge body 13, as the component directly involved in measurement, is designed in shape and size to meet the needs of gap measurement, maintaining a relatively small thickness for insertion into narrow gaps; the handle 14, as the component held by the operator, is designed in shape and size according to ergonomic requirements, providing a comfortable grip. A first mounting part 11 is provided at the end of the handle 14 away from the feeler gauge body 13, so that the telescopic component 2 will not interfere with the measurement function of the feeler gauge body 13 after connection.

[0039] In one specific embodiment, when the inspector needs to measure the gaps at the top of the building's exterior wall, the entire device is held by the handle 14. The slender shape of the feeler gauge body 13 allows it to be accurately inserted into the gap, while the design of the handle 14 ensures the stability and comfort of the operation. When a hollow sound is required, the grip support provided by the handle 14 makes the tapping action more effective and the force transmission more direct.

[0040] By designing the feeler gauge body 13 and the handle 14 as two independent but connected components, the feeler gauge body 13 can focus on optimizing measurement accuracy, while the handle 14 can focus on optimizing grip comfort and connection functions. This avoids functional conflicts in an integrated design and achieves the optimal configuration of the performance of each part.

[0041] In some embodiments, the measuring surface 131 of the feeler gauge body 13 is provided with a scale line 132, and the feeler gauge assembly 1 also includes a movable vernier 15, which can slide along the measuring surface 131 to measure the gap size in conjunction with the scale line 132.

[0042] In this invention, the measuring surface 131 of the feeler gauge body 13 is provided with scale lines 132, which, together with the movable vernier 15 that can slide along the measuring surface 131, forms a precise measuring system. The movable vernier 15 can indicate precise measurement values ​​on the scale lines 132, which significantly improves the accuracy of gap size measurement and the convenience of reading.

[0043] Specifically, during gap measurement, the feeler gauge body 13 is inserted into the gap until it cannot be inserted any further. At this point, the movable vernier 15 slides to the edge of the gap, and the position of the vernier on the scale line 132 directly indicates the depth or width of the gap. The design of the movable vernier 15 ensures that the reading point accurately corresponds to the measurement position, avoiding reading errors caused by visual deviation. The precise markings on the scale line 132 provide a reliable numerical reference for the measurement.

[0044] In addition, the design of the moving vernier 15 enables precise correspondence between the measurement position and the reading position, eliminating the sources of error from estimation and subjective judgment. At the same time, the standardized numerical reference provided by the scale line 132 ensures the consistency and comparability of measurement results among different operators, significantly improving the overall performance of the measurement system.

[0045] In some embodiments, the feeler gauge body 13 is provided with sliding grooves 133 on both sides of the measuring surface 131, and the movable vernier 15 slides in cooperation with the sliding grooves 133.

[0046] In this invention, the feeler gauge body 13 is provided with sliding grooves 133 on both sides of the measuring surface 131. The movable vernier 15 slides in cooperation with the sliding grooves 133. This guiding structure ensures that the movable vernier 15 can only move in a predetermined direction, preventing the vernier from deviating or tilting during the measurement process, and ensuring the accuracy and repeatability of the measurement results.

[0047] Specifically, the design of the sliding groove 133 forms a precise guide track on the feeler gauge body 13. The corresponding part of the moving vernier 15 forms a sliding pair with the sliding groove 133. During the sliding process, the vernier is constrained by the wall of the sliding groove 133 and can only move along the length direction of the feeler gauge body 13. This constraint mechanism eliminates the degree of freedom of the vernier in the width and thickness directions, ensuring that the vernier always maintains the correct posture and position.

[0048] In this embodiment of the utility model, by setting sliding grooves 133 on both sides of the feeler gauge body 13 and forming a precise fit with the moving vernier 15, a reliable guiding constraint mechanism is established, which not only improves the accuracy of the vernier movement, but also enhances the stability of the entire measurement system under various usage conditions, ensuring that the measurement results are not affected by external interference factors.

[0049] In some embodiments, the outer surface of the handle 14 is provided with an anti-slip structure 141.

[0050] In this invention, the outer surface of the handle 14 is provided with an anti-slip structure 141, which increases the friction between the hand and the surface of the handle 14 to prevent hand slippage during operation, thereby improving the safety and control accuracy of operation. It is particularly effective when used in construction sites in humid or oily environments.

[0051] The anti-slip structure 141 can be a textured surface, spiral groove, or other surface treatment that increases friction, processed on the surface of the handle 14. These structures can form more contact points with the skin of the hand, increasing the distribution area of ​​the positive pressure, thereby significantly improving the static friction coefficient. When the operator applies gripping force, the anti-slip structure 141 can effectively transmit and disperse this force, preventing the hand from sliding relative to the handle 14.

[0052] In addition, by providing an anti-slip structure 141 on the outer surface of the handle 14, the contact conditions between the hand and the tool are actively improved. Regardless of changes in environmental conditions, it can always provide a reliable grip, which not only improves operational safety but also enhances the operator's control over the tool and improves the overall user experience.

[0053] In some embodiments, the telescopic component 2 includes multiple layers of telescopic tubes 22 arranged in a nested manner. The telescopic tubes 22 are provided with reinforcing grooves 23 along the circumferential direction. The reinforcing grooves 23 are used to reinforce two adjacent layers of telescopic tubes 22.

[0054] In this utility model, the telescopic component 2 includes multiple layers of telescopic tubes 22 nested in sequence. Each telescopic tube 22 is provided with a reinforcing groove 23 along the circumferential direction. The presence of the reinforcing groove 23 enhances the connection strength and structural stability between adjacent layers of telescopic tubes 22, so that the telescopic component 2 can maintain good structural integrity when subjected to axial load and radial load.

[0055] Specifically, the nested design of the multi-layer telescopic tubes 22 allows the telescopic assembly 2 to adjust its length according to usage requirements. The inner telescopic tube 22 can slide relative to the outer telescopic tube 22, achieving continuous length adjustment. The reinforcing grooves 23 are distributed circumferentially along the telescopic tubes 22, forming a ring-shaped reinforcing rib structure. When adjacent telescopic tubes 22 move relative to each other, the reinforcing grooves 23 provide additional support and constraint, preventing the telescopic tubes 22 from undergoing local deformation or instability under load.

[0056] In this embodiment of the utility model, the reinforcing groove 23 serves as a specialized structural strengthening element, which not only improves the local stiffness of the telescopic tube 22 but also enhances the load transfer mechanism between adjacent tubes, enabling the entire telescopic assembly 2 to maintain good structural performance during long-term use, extending the service life of the device and improving its operational reliability.

[0057] In some embodiments, each layer of telescopic tube 22 is provided with at least two reinforcing grooves 23.

[0058] In this invention, each layer of telescopic tube 22 is provided with at least two reinforcing grooves 23. The circumferential distribution of multiple reinforcing grooves 23 allows the load to be distributed more evenly on the entire tube structure, avoiding stress concentration that may be caused by single-point force application, and further improving the structural reliability and load-bearing capacity of the telescopic component 2.

[0059] Specifically, the reasonable distribution of at least two reinforcing grooves 23 around the circumference of the telescopic tube 22 forms a multi-point support structure. When the telescopic component 2 bears external loads, the load is transmitted simultaneously through multiple reinforcing grooves 23, and the load borne by each groove is reduced accordingly. This load distribution mechanism not only reduces the stress level of a single groove, but also improves the redundancy of the entire structure. Even if a groove malfunctions, the other grooves can still maintain the basic function of the structure.

[0060] In one specific embodiment, when inspectors perform wall hollowness detection, the tapping action of the ball head 3 will generate an impact load in the telescopic component 2. This load is characterized by strong instantaneousness and large amplitude. The design of multiple reinforcing grooves 23 enables the impact energy to be quickly dispersed throughout the entire tube structure, reducing local stress peaks and preventing structural damage caused by impact loads.

[0061] In this embodiment of the utility model, by providing at least two reinforcing grooves 23 on each layer of telescopic tube 22, a multi-protection mechanism is established, which not only improves the ability to withstand single loads, but also enhances the fatigue life of the structure under cyclic loads, ensuring that the telescopic component 2 can maintain good performance during long-term and frequent use.

[0062] In some embodiments, when the third mounting part 21 is connected to the first mounting part 11, a linear structure for detecting hollow areas in the wall is formed; when the third mounting part 21 is connected to the second mounting part 12, an L-shaped structure for measuring gaps at height is formed.

[0063] In this invention, when the third mounting part 21 is connected to the first mounting part 11, a straight structure is formed for detecting hollow areas in the wall. When the third mounting part 21 is connected to the second mounting part 12, an L-shaped structure is formed for measuring gaps at heights. This dual-mode structural configuration allows the same device to adapt to different detection scenarios and work requirements, achieving functional diversification and flexibility of use.

[0064] Specifically, in the linear configuration, the feeler gauge assembly 1 and the telescopic assembly 2 are arranged along the same axis to form a slender rod-like whole, with the ball head 3 located at the end of the entire device. This configuration facilitates linear striking actions, and the force transmission path is the shortest and most direct. In the L-shaped configuration, the telescopic assembly 2 and the feeler gauge assembly 1 form an approximately perpendicular angular relationship. This configuration allows the operator to control operations in two different directions simultaneously from one position, making it suitable for use in space-constrained environments.

[0065] In this embodiment of the utility model, through the ingenious design of dual mounting parts and corresponding structural configuration, the technical effect of one device undertaking multiple detection functions is achieved. This not only simplifies the tool configuration but also improves the continuity of the detection work. At the same time, each configuration is optimized for specific detection needs, ensuring the professionalism and effectiveness of each function.

[0066] In some embodiments, the feeler gauge assembly 1, the telescopic assembly 2, and the ball head 3 are made of stainless steel.

[0067] In this invention, the feeler gauge assembly 1, the telescopic assembly 2, and the ball head 3 are all made of stainless steel. Stainless steel has excellent corrosion resistance and good mechanical strength, which can adapt to the harsh working environment of construction sites and ensure that the device maintains stable performance and a long service life during long-term use.

[0068] Specifically, stainless steel contains alloying elements such as chromium, which can form a dense oxide film on its surface. This oxide film has self-healing capabilities and can effectively prevent corrosion of the base material even in humid, dusty, or chemically contaminated environments. At the same time, stainless steel has good strength and toughness, and can withstand various mechanical loads during the testing process, including impact, bending stress, and tensile loads.

[0069] In some embodiments, the ball head 3 is a solid structure.

[0070] In this invention, the ball head 3 adopts a solid structure, which has a larger mass and better mass distribution compared to a hollow structure. It can produce a more effective tapping effect when performing hollow detection, and can more accurately judge the hollowness inside the wall by the difference in tapping sound, thus improving the accuracy and sensitivity of the detection.

[0071] Specifically, the concentrated mass distribution of the solid ball head 3 allows for the accumulation of more kinetic energy during impact. When the ball head 3 contacts the wall, this kinetic energy is more effectively transferred to the surface being tested, generating more pronounced sound wave propagation within the wall. Due to the internal gaps, the sound wave propagation characteristics of hollow areas differ significantly from those of solid areas. The strong impact generated by the solid ball head 3 amplifies this difference, making it easier for operators to identify hollow areas by sound. The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A construction engineering detection device, characterized by, include: A feeler gauge assembly (1) is provided with a first mounting part (11) at one end along the extension direction and a second mounting part (12) at one side along the extension direction. Telescopic component (2), one end of which is provided with a third mounting part (21), the third mounting part (21) is detachably connected to the first mounting part (11) and detachably connected to the second mounting part (12); The ball head (3) is connected to the end of the telescopic assembly (2) away from the third mounting part (21).

2. The construction engineering detection device according to claim 1, characterized in that, The first mounting part (11) and the second mounting part (12) are threaded grooves, and the third mounting part (21) is a stud that is threadedly engaged with the threaded groove.

3. The building engineering testing device according to claim 1, characterized in that, The feeler gauge assembly (1) includes: The feeler gauge body (13) has a second mounting part (12) provided on one side. The handle (14) is connected to the end of the feeler gauge body (13), and the first mounting part (11) is provided at the end of the handle (14) away from the feeler gauge body (13).

4. The construction engineering detection device of claim 3, wherein, The feeler gauge body (13) has a scale line (132) on its measuring surface (131). The feeler gauge assembly (1) also includes a movable vernier (15), which can slide along the measuring surface (131) to measure the gap size in conjunction with the scale line (132).

5. The construction engineering detection device according to claim 4, characterized in that, The feeler gauge body (13) has sliding grooves (133) on both sides of the measuring surface (131), and the movable vernier (15) slides in cooperation with the sliding grooves (133).

6. The construction engineering detection device of claim 3, wherein, The outer surface of the handle (14) is provided with an anti-slip structure (141).

7. The building engineering testing device according to claim 1, characterized in that, The telescopic assembly (2) includes multiple layers of telescopic tubes (22) nested in sequence. Each telescopic tube (22) has a reinforcing groove (23) along its circumferential direction. The reinforcing groove (23) is used to reinforce two adjacent layers of the telescopic tubes (22).

8. The building engineering testing device according to claim 7, characterized in that, Each layer of the telescopic tube (22) is provided with at least two of the reinforcing grooves (23).

9. The construction surveying apparatus of any of claims 1-8, wherein, When the third mounting part (21) is connected to the first mounting part (11), a straight structure for detecting hollow walls is formed; when the third mounting part (21) is connected to the second mounting part (12), an L-shaped structure for measuring gaps at heights is formed.

10. The construction engineering detection apparatus according to claim 1, characterized by, The ball head (3) is a solid structure.

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