Portable wall detection hollowing hammer

By combining support columns, sleeve columns, and movable columns, and utilizing magnetic adsorption and slider limiting, the problem of unstable angle adjustment of the hollow hammer rod is solved, achieving stable marking and convenient portability, thus improving the efficiency and safety of hollow detection.

CN224005010UActive Publication Date: 2026-03-17QINGDAO TOMORROW CONSTR SUPERVISION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing hollow hammer is prone to loosening when adjusting the rod angle, which leads to unstable adjustment of the marker pen angle and failure to effectively mark the hollow points, affecting detection efficiency and safety.

Method used

It adopts a combination structure of support column, sleeve column and movable column, and realizes stable adjustment of sleeve column angle and fixation of marker block through magnetic adsorption and slider limit. Combined with anti-slip pad and spring buckle, it improves the stability and portability of use.

Benefits of technology

It achieves stability in adjusting the sleeve angle and reliable fixation of the marker block, improves the efficiency and safety of hollow detection, reduces the risk of the pole slipping, and facilitates carrying and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable wall detection hollowing hammer, and relates to the technical field of hollowing hammers, the portable wall detection hollowing hammer comprises a supporting column, the top end of the supporting column is rotatably connected with a rotating shaft, the top end of the rotating shaft is fixedly connected with a sleeve column, the top end of the supporting column is provided with a first sliding groove, and the bottom end of the inner side of the first sliding groove is slidably connected with a sliding block. By the adoption of the structure, when an empty drum point is detected, a user does not need to loosen the supporting column and directly uses a second hand to rotate the sleeve column through the rotating shaft, when the angle of the sleeve column is changed, the angle of the marking block is also changed, and the sliding block can be used for detecting the empty drum point while the angle adjustment of the sleeve column is not hindered. The bottom end of the sleeve column can be secondarily supported and limited, so that the stability of angle adjustment of the sleeve column can be effectively improved, and the stability of holding the supporting column by a user can be effectively improved while the point position of the marking block is conveniently adjusted to mark the wall.
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Description

Technical Field

[0001] This utility model belongs to the field of hollow drum hammer technology, and specifically relates to a portable wall hollow drum hammer. Background Technology

[0002] Decoration acceptance refers to the standardized acceptance of the decorated items after the decoration is completed. During the acceptance, some of the standards are implemented in accordance with national standards. Since the scope of decoration is quite broad, it can be divided into engineering decoration acceptance and home decoration acceptance. Decoration acceptance standards refer to a standard specification for whether the corresponding decoration items are qualified. The hollow hammer is a common tool for decoration acceptance.

[0003] Chinese patent CN221377816U discloses a device for detecting hollow spots in building walls, including a spherical hollow spot hammer. A telescopic rod is provided at the bottom of the spherical hollow spot hammer. A support rod is fitted onto the surface of the telescopic rod. A grooved retaining ring is provided on the surface of the support rod. A limit ring is provided at the bottom end of the telescopic rod, and the grooved retaining ring is locked to the limit ring. A collar is fitted onto the surface of the support rod. A locking block is provided on one side of the collar, and a marker pen is provided inside the locking block. A locking bolt is provided on one side of the collar. A handle is provided at the bottom end of the support rod, and a hanging ring is provided on the bottom end of the handle. A hanging rope is fitted onto the surface of the hanging ring.

[0004] However, the above structure still has some shortcomings. When it is necessary to mark the detected hollow points, the angle of the rod cannot be adjusted. Therefore, the user needs to adjust the angle of the marker by directly rotating the entire rod. During the rotation, since there is no corresponding anti-loosening point, the rod can easily slip off the palm of the hand and fall to the ground, causing damage to the ground, which is very inconvenient. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a portable wall hollow detection hammer to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A portable wall-mounted hollow-sounding hammer includes a support column, a rotating shaft rotatably connected to the top of the support column, a sleeve column fixedly connected to the top of the rotating shaft, a first sliding groove on the top of the support column, a slider slidably connected to the bottom inner side of the first sliding groove, the top of the slider fixedly connected to the bottom of the sleeve column, a first magnet fixedly connected to the top of the support column, an iron ring matching the first magnet fixedly connected to the bottom of the sleeve column, the bottom of the iron ring abutting against the top of the first magnet, a movable column sleeved on the top of the sleeve column, a spherical hollow-sounding hammer threadedly connected to the top of the movable column, a fixing ring magnetically connected to the outer wall of the movable column, a limit block fixedly connected to the front side of the fixing ring, and a marking block snapped onto the front side of the limit block.

[0008] As a preferred technical solution, an anti-slip pad is fixedly connected to the outer wall of the support column. The anti-slip pad is one centimeter thick and covers the outer wall of the support column.

[0009] As a preferred technical solution, a slot is provided on the front side of the movable column, and a round hole is provided on the front side of the sleeve column. A spring buckle that matches the slot is installed inside the round hole, and the spring buckle is engaged with the inside of the slot through the round hole.

[0010] As a preferred technical solution, a connecting frame is fixedly connected to the outer wall of the sleeve column. One side of the connecting frame is slidably connected to the outer wall of the movable column. A second sliding groove matching the connecting frame is opened on the outer wall of the movable column. One side of the connecting frame is slidably connected to the outer wall of the movable column through the second sliding groove.

[0011] As a preferred technical solution, the top of the movable column is provided with a threaded groove, and the bottom of the spherical hollow hammer is fixedly connected with a threaded block that matches the threaded groove. The threaded block is threadedly connected to the inside of the threaded groove, and the spherical hollow hammer is threadedly connected to the top of the movable column through the threaded block and the threaded groove.

[0012] As a preferred technical solution, a groove is provided on the outer wall of the movable column, and a second magnet is fixedly connected to the inner side of the groove. The second magnet covers the inner side of the groove. The inner wall of the fixing ring is made of magnetic iron material. The inner wall of the fixing ring is attached to the outer wall of the second magnet. The fixing ring is magnetically connected to the outer wall of the movable column by the second magnet.

[0013] As a preferred technical solution, a limiting groove matching the marking block is opened on the front side of the limiting block, and the marking block is engaged with the inner side of the limiting groove. The marking block is engaged with the front side of the limiting block through the limiting groove.

[0014] In summary, the present invention has the following main advantages:

[0015] First, when using it, hold the support column and use the spherical hollow hammer to detect hollow points on the relative wall. When a hollow point is detected, the user does not need to release the support column. Instead, use the second hand to rotate the sleeve column using the pivot. When the angle of the sleeve column changes, the angle of the marking block will also change. The slider can provide secondary support and limit the bottom of the sleeve column without hindering the adjustment of the sleeve column angle, thereby effectively improving the stability of the sleeve column angle adjustment. While making it convenient to adjust the marking block position to mark the wall, it can also effectively improve the stability of the user's hand holding the support column, so as to prevent the support column from slipping out of the palm.

[0016] Secondly, the presence of the sleeve column facilitates the vertical movement of the movable column, allowing for adjustment of the length of the spherical hollow hammer. Once the length is adjusted, pressing the spring clip will insert it into the corresponding slot, effectively limiting the movable column. The connecting frame can provide secondary support and limitation for the outer wall of the movable column without hindering the adjustment of the movable column position, thereby effectively improving the stability of the movable column position adjustment. After the hollow hammer is used, the movable column can be retracted using the sleeve principle, which also facilitates the user's later carrying of the spherical hollow hammer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure at the top of the movable column of this utility model;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the sleeve column of this utility model;

[0020] Figure 4 This is a schematic diagram of the top structure of the support column of this utility model.

[0021] Reference numerals in the attached diagram: 1. Support column; 2. Anti-slip pad; 3. Rotating shaft; 4. First magnet; 5. First slide groove; 6. Sliding block; 7. Sleeve column; 8. Iron ring; 9. Round hole; 10. Spring buckle; 11. Movable column; 12. Slot; 13. Second slide groove; 14. Connecting frame; 15. Fixing ring; 16. Limiting block; 17. Limiting groove; 18. Marking block; 19. Groove; 20. Second magnet; 21. Threaded groove; 22. Threaded block; 23. Spherical hollow hammer. Detailed Implementation

[0022] Example

[0023] refer to Figures 1 to 4The portable wall-mounted hollow hammer of this embodiment includes a support column 1, a rotating shaft 3 rotatably connected to the top of the support column 1, a sleeve column 7 fixedly connected to the top of the rotating shaft 3, a first sliding groove 5 opened at the top of the support column 1, a slider 6 slidably connected to the bottom inner side of the first sliding groove 5, the top of the slider 6 fixedly connected to the bottom of the sleeve column 7, a first magnet 4 fixedly connected to the top of the support column 1, an iron ring 8 matching the first magnet 4 fixedly connected to the bottom of the sleeve column 7, the bottom of the iron ring 8 abutting against the top of the first magnet 4, a movable column 11 sleeved at the top of the sleeve column 7, a spherical hollow hammer 23 threadedly connected to the top of the movable column 11, a fixing ring 15 magnetically connected to the outer wall of the movable column 11, a limit block 16 fixedly connected to the front side of the fixing ring 15, and the limit block 16... The front side is fitted with a marker block 18. When in use, the support column 1 is easy for the user to grip, so that the user can tap the spherical hollow hammer 23 to detect hollow points on the wall. When a hollow point is detected, the user does not need to release the support column 1. Instead, the user can use the second hand to rotate the sleeve column 7 using the pivot 3. The slider 6 can provide secondary support and limit the bottom of the sleeve column 7 without hindering the angle adjustment of the sleeve column 7, thereby effectively improving the stability of the angle adjustment of the sleeve column 7. The attraction between the first magnet 4 and the iron ring 8 can increase the resistance to the rotation of the sleeve column 7, effectively preventing the sleeve column 7 from shifting its angle after the angle adjustment is completed. While making it convenient to adjust the position of the marker block 18 to mark the wall, it can also effectively improve the stability of the user's grip on the support column 1.

[0024] refer to Figure 1 An anti-slip pad 2 is fixedly connected to the outer wall of the support column 1. The thickness of the anti-slip pad 2 is one centimeter. The anti-slip pad 2 covers the outer wall of the support column 1. Due to the presence of the anti-slip pad 2, which is made of rubber, it has good anti-slip ability and rubber elasticity. While improving the hand grip stability of the support column 1, it can also effectively reduce the risk of the user's palm being chafed.

[0025] refer to Figures 1 to 3The movable column 11 has a slot 12 on its front side, and the sleeve column 7 has a round hole 9 on its front side. A spring clip 10 matching the slot 12 is installed inside the round hole 9. The spring clip 10 is engaged with the slot 12 through the round hole 9. A connecting frame 14 is fixedly connected to the outer wall of the sleeve column 7. One side of the connecting frame 14 is slidably connected to the outer wall of the movable column 11. A second sliding groove 13 matching the connecting frame 14 is opened on the outer wall of the movable column 11. One side of the connecting frame 14 is slidably connected to the outer wall of the movable column 11 through the second sliding groove 13. Due to the presence of the sleeve column 7, the movable column 11 is facilitated to... The vertical movement of 1 allows for adjustment of the length of the spherical hollow hammer 23. Once the length is adjusted, pressing the spring clip 10 and inserting it into the corresponding slot 12 effectively limits the movement of the movable column 11. The connecting frame 14 can provide secondary support and limit the outer wall of the movable column 11 without hindering the adjustment of the movable column 11's position, thereby effectively improving the stability of the movable column 11's position adjustment. After the hollow hammer is used, the movable column 11 can be retracted using the sleeve principle, which also facilitates the user's later carrying of the spherical hollow hammer 23.

[0026] refer to Figure 1 and Figure 2 The top of the movable column 11 is provided with a threaded groove 21. The bottom of the spherical hollow hammer 23 is fixedly connected with a threaded block 22 that matches the threaded groove 21. The threaded block 22 is threaded to the inside of the threaded groove 21. The spherical hollow hammer 23 is threaded to the top of the movable column 11 through the threaded block 22 and the threaded groove 21. Due to the existence of the threaded groove 21, it is convenient to screw the threaded block 22 in so as to limit the spherical hollow hammer 23 and prevent it from shifting. When it needs to be disassembled later, the threaded block 22 can be screwed out of the threaded groove 21. It is also convenient for users to inspect or maintain the spherical hollow hammer 23 later.

[0027] refer to Figures 1 to 3 The outer wall of the movable column 11 has a groove 19. A second magnet 20 is fixedly connected to the inner side of the groove 19. The second magnet 20 covers the inner side of the groove 19. The inner wall of the fixing ring 15 is made of magnetic iron material. The inner wall of the fixing ring 15 is attached to the outer wall of the second magnet 20. The fixing ring 15 is magnetically connected to the outer wall of the movable column 11 by the second magnet 20. Due to the presence of the second magnet 20, the fixing ring 15 can be effectively attracted to prevent it from falling off. It also makes it easier for the user to disassemble the entire fixing ring 15 for maintenance later.

[0028] refer to Figure 3The front side of the limiting block 16 is provided with a limiting groove 17 that matches the marking block 18. The marking block 18 is snapped into the inner side of the limiting groove 17. The marking block 18 is snapped into the front side of the limiting block 16 through the limiting groove 17. Due to the existence of the limiting groove 17, the marking block 18 can be effectively limited to prevent it from falling off. It also makes it easier for the user to remove the marking block 18 for replacement later.

[0029] Operating principle and advantages: During use, the support column 1 is easy for the user to grip, allowing them to tap the spherical hollow hammer 23 to detect hollow spots on the wall. When a hollow spot is detected, the user does not need to release the support column 1; instead, they can use their second hand to rotate the sleeve column 7 using the pivot 3. The slider 6 provides secondary support and limitation at the bottom of the sleeve column 7 without hindering angle adjustment, thus effectively improving the stability of the sleeve column 7's angle adjustment. The attraction between the first magnet 4 and the iron ring 8 increases the resistance to rotation of the sleeve column 7, effectively preventing the angle adjustment from being completed. When the sleeve 7 shifts at an angle, it facilitates the adjustment of the marking block 18 to mark the wall, while also effectively improving the stability of the user's grip on the support column 1. The presence of the anti-slip pad 2, made of rubber, provides excellent anti-slip properties and elasticity, enhancing the stability of the support column 1 while reducing the risk of hand abrasion. The sleeve 7 also facilitates the vertical movement of the movable column 11, allowing for adjustment of the length of the spherical hollow hammer 23. Once the length adjustment is complete, press the spring latch 10. By inserting it into the corresponding slot 12, the movable column 11 can be effectively limited. Its connecting frame 14 can provide secondary support and limitation for the outer wall of the movable column 11 without hindering its position adjustment, thereby effectively improving the stability of the movable column 11's position adjustment. After use, the movable column 11 can be retracted using the sleeve principle, which also facilitates the user's later carrying of the spherical hollow hammer 23. The presence of the threaded groove 21 facilitates the screwing in of the threaded block 22 to limit the spherical hollow hammer 23 and prevent it from deteriorating. The displacement is such that when it needs to be disassembled later, the threaded block 22 can be unscrewed from the threaded groove 21. This also makes it easier for the user to inspect or maintain the spherical hollow hammer 23 later. Due to the presence of the second magnet 20, the fixing ring 15 can be effectively attracted to prevent it from falling off. This also makes it easier for the user to disassemble the entire fixing ring 15 for maintenance later. Due to the presence of the limiting groove 17, the marking block 18 can be effectively limited to prevent it from falling off. This also makes it easier for the user to pull out the marking block 18 for replacement later.

Claims

1. A portable wall detection hammer for detecting hollow spaces, comprising a support column (1), characterized in that: The top end of the support column (1) is rotatably connected with a rotating shaft (3), the top end of the rotating shaft (3) is fixedly connected with a sleeve column (7), the top end of the support column (1) is provided with a first sliding groove (5), the inner side of the first sliding groove (5) is slidably connected with a sliding block (6), the top end of the sliding block (6) is fixedly connected with the bottom end of the sleeve column (7), the top end of the support column (1) is fixedly connected with a first magnet (4), the bottom end of the sleeve column (7) is fixedly connected with an iron ring (8) matched with the first magnet (4), the bottom end of the iron ring (8) is attached to the top end of the first magnet (4), the top end of the sleeve column (7) is sleeved with a movable column (11), the top end of the movable column (11) is threadedly connected with a spherical empty drum hammer (23), the outer wall of the movable column (11) is magnetically connected with a fixed ring (15), the front side of the fixed ring (15) is fixedly connected with a limiting block (16), the front side of the limiting block (16) is clamped with a mark block (18).

2. The portable wall detection hammer according to claim 1, wherein: The outer wall of the support column (1) is fixedly connected with a non-slip pad (2), the thickness of the non-slip pad (2) is one centimeter, and the non-slip pad (2) covers the outer wall of the support column (1).

3. The portable wall detection hammer according to claim 1, wherein: The front side of the movable column (11) is provided with a clamping groove (12), the front side of the sleeve column (7) is provided with a circular hole (9), the inner side of the circular hole (9) is provided with a spring buckle (10) matched with the clamping groove (12), and the spring buckle (10) is clamped in the inner side of the clamping groove (12) through the circular hole (9).

4. The portable wall detection hammer for detecting hollow spaces according to claim 1, wherein: The outer wall of the sleeve column (7) is fixedly connected with a connecting frame (14), one side of the connecting frame (14) is slidably connected to the outer wall of the movable column (11), the outer wall of the movable column (11) is provided with a second sliding groove (13) matched with the connecting frame (14), and one side of the connecting frame (14) is slidably connected to the outer wall of the movable column (11) through the second sliding groove (13).

5. The portable wall detection hammer for detecting hollow spots according to claim 1, wherein: The top end of the movable column (11) is provided with a threaded groove (21), the bottom end of the spherical empty drum hammer (23) is fixedly connected with a threaded block (22) matched with the threaded groove (21), the threaded block (22) is threadedly connected to the inner side of the threaded groove (21), and the spherical empty drum hammer (23) is threadedly connected to the top end of the movable column (11) through the threaded block (22) and the threaded groove (21).

6. The portable wall detection hammer for detecting hollow spaces according to claim 1, wherein: The outer wall of the movable column (11) is provided with a groove (19), the inner side of the groove (19) is fixedly connected with a second magnet (20), the second magnet (20) covers the inner side of the groove (19), the inner wall of the fixed ring (15) is made of magnetic iron material, the inner wall of the fixed ring (15) is attached to the outer wall of the second magnet (20), and the fixed ring (15) is magnetically connected to the outer wall of the movable column (11) through the second magnet (20).

7. The portable wall detection hammer for detecting hollow spots according to claim 1, wherein: The front side of the limiting block (16) is provided with a limiting groove (17) matched with the mark block (18), the mark block (18) is clamped in the inner side of the limiting groove (17), and the mark block (18) is clamped in the front side of the limiting block (16) through the limiting groove (17).

Citation Information

Patent Citations

  • House wall hollowing detection device

    CN221377816U