Hollow drum hammer for building detection

Abstract

The utility model relates to the technical field of municipal supervision and detection, and discloses a hollowing hammer for building detection, which comprises a handle, a loudspeaking structure and a fixing structure, a telescopic rod is fixedly arranged above the handle, and a hammer handle is arranged on the telescopic rod in a threaded manner; the loudspeaker structure is fixedly arranged between the handle and the telescopic rod, the loudspeaker structure comprises a fixing box and a loudspeaker cylinder, and the fixing structure comprises a fixing block, a clamping plate, a clamping seat, a sound receiving hopper, a clamping plate and a right-hand and left-hand threaded rod. And then the sound is transmitted to the fixed box through the telescopic rod, is transmitted through the cylindrical cavity in the fixed box and is released by the circular truncated cone cavities on the two sides, so that the sound transmission limitation caused by a long distance can be overcome, and the sound range of a building transmitted by the round-head hammer or the pointed-head hammer is reduced, thereby helping a worker to make the most accurate judgment. And thus, detection errors are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of municipal supervision and inspection, and specifically relates to a hollow drum hammer for building inspection. Background Art

[0002] The hollow drum hammer for building inspection is an important tool for detecting whether there are hollow drum phenomena on the walls, floors, etc. of buildings. It is usually made of metal materials such as stainless steel to ensure that it is not easily damaged during use and has good sound conduction effect.

[0003] The prior art discloses a hollow drum hammer (CN213121752U), which includes a hand rod. An expansion rod is slidably sleeved inside the hand rod. One end of the expansion rod is provided with a connecting rod, and the other end of the connecting rod away from the expansion rod is connected with a hammer head. One end of the hammer head in contact with the connecting rod is provided with a sleeve, and a clamping groove is formed on the side wall of the sleeve. A clamping member adapted to the clamping groove is provided on the connecting rod. The connection between the connecting rod and the hammer head is fixed through the clamping member and the clamping groove, which belongs to a rigid connection. Such a setting makes the hammer head not separate from the expansion rod when the hollow drum hammer is used in a complex environment, improving the stability of the hollow drum hammer during use.

[0004] After retrieval, it is found that this device uses a clamping member to fix the hammer head. Since the clamping member is located inside the hammer head and the connecting rod, the sound conduction is easily interfered during the use of the device, which is likely to affect the judgment of building inspection by the staff; when this device is used, long-distance detection cannot be marked, and workers need to move ladders for high-altitude marking. This is not only inconvenient but also prone to danger, and it will further affect the overall practicality of the device; furthermore, when this device needs to perform long-distance detection, the expansion rod needs to be lengthened. During this process, due to the increased distance, the sound conduction ability is limited, and the enlarged conduction range will affect the judgment of the building by the staff, resulting in detection errors.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] To solve the above technical problem of limited sound conduction, the basic concept of the technical solution adopted by the present utility model is:

[0007] A hollow drum hammer for building inspection, comprising

[0008] a handle, an expansion rod is fixedly arranged above the handle, and a hammer handle is threadedly arranged on the expansion rod;

[0009] a sound amplification structure, the sound amplification structure is fixedly arranged between the handle and the expansion rod. The sound amplification structure includes a fixed box and a sound amplification cylinder. The sound amplification cylinder is fixedly arranged on one side of the fixed box, and the expansion rod is fixedly arranged inside the fixed box;

[0010] Fixing structure, the fixing structure is fixedly arranged at the top end of the telescopic rod. The fixing structure includes a fixing block, a clamping plate, a clamping seat, a sound collecting hopper, a clamping board and a left-right threaded rod. The clamping seat is fixedly arranged on the bottom surface of the sound collecting hopper. The hammer handle is movably arranged above the sound collecting hopper. The fixing block is fixedly arranged above the telescopic rod. The clamping plate is elastically arranged in the fixing block. The clamping seat is movably arranged on the top surface of the fixing block. The left-right threaded rod is rotatably arranged inside the sound collecting hopper. The clamping board is slidably arranged inside the sound collecting hopper.

[0011] As a preferred embodiment of the present utility model, the top surface of the handle is fixedly connected to the bottom surface of the fixing box. There are two loudspeakers. The two loudspeakers are respectively fixedly arranged on both sides of the fixing box. A frustum cavity is opened inside the loudspeaker. A cylindrical cavity is opened inside the fixing box. The cylindrical cavity and the two frustum cavities form a U-shaped through cavity.

[0012] As a preferred embodiment of the present utility model, a round hole is opened on the top surface of the fixing box. The fixing box is fixedly connected to the telescopic rod through the round hole. The inner side of the top end of the telescopic rod is provided with a threaded hole. The hammer handle is a T-shaped column. The bottom end of the hammer handle is provided with a threaded column. The hammer handle is threadedly connected to the thread inside the telescopic rod through the threaded column at the bottom end.

[0013] As a preferred embodiment of the present utility model, a hexagonal fixing block is fixedly connected to the top curved surface of the telescopic rod. Six cross-shaped card slots are evenly opened on the side surface of the fixing block. The clamping plate is slidably connected inside the cross-shaped card slot. A spring is fixedly arranged between the clamping plate and the cross-shaped card slot. The clamping plate is elastically connected to the fixing block through the spring.

[0014] As a preferred embodiment of the present utility model, the clamping seat is a hexagonal block. A cross-shaped card slot with the same shape but different length from the fixing block is opened on the side surface of the clamping seat. The top end of the clamping plate is clamped in the cross-shaped card slot. The same-side of the six clamping plates away from the fixing block is fixedly connected with a linkage ring. The linkage ring slides on the outside of the fixing block.

[0015] As a preferred embodiment of the present utility model, a round head hammer and a pointed head hammer are symmetrically arranged above the hammer handle respectively. The round head hammer and the pointed head hammer are both fixedly connected to the same hammer handle. The sound collecting hopper is in a funnel shape. A funnel-shaped through cavity is opened inside the sound collecting hopper. A bayonet is opened above the sound collecting hopper. The hammer handle is clamped in the bayonet.

[0016] As a preferred embodiment of the present utility model, two semi-circular plates are fixedly connected above the sound collection hopper. The two semi-circular plates are symmetrically distributed with the bayonet as the center line. A slideway is formed inside one of the semi-circular plates. A rotating hole is formed in the slideway. The rotating hole is rotatably connected to a left-right threaded rod through a bearing. Two clamping plates are provided. A convex block is arranged at the bottom of the clamping plate. A threaded hole is formed in the convex block. The clamping plate is threadedly connected to the left-right threaded rod through the threaded hole in the convex block. The convex block slides in the slideway. The two clamping plates are respectively threadedly arranged at both ends of the left-right threaded rod.

[0017] The present utility model has the following beneficial effects compared with the prior art:

[0018] 1. By setting up the sound amplification structure, when dealing with long-distance detection, the sound collection hopper is used to collect the sound conducted by the hammer handle, and then it is conducted to the fixed box through the telescopic rod, and then conducted through the cylindrical cavity inside the fixed box and released from the frustum cavities on both sides. In this way, the limitation of sound conduction caused by long distance can be overcome, and the sound range of the building conducted by the ball-peen hammer or the pointed hammer can be reduced, so as to help the staff make the most accurate judgment and avoid detection errors.

[0019] 2. By setting up the fixing structure, the sound collection hopper is fixed from the outside by the connection method between the clamping plate, the clamping seat and the fixing block. At the same time, the shape of the hammer handle and the telescopic rod are used to squeeze the sound collection hopper. Moreover, the effect of simultaneously pushing the clamping plate to engage with the clamping seat is realized through the set linkage ring, which is convenient for the disassembly and replacement of the hammer handle without affecting the sound conduction. Thus, it is convenient for the staff to detect and judge the building. And by setting the left-right threaded rod and two clamping plates, the marker pen is clamped by extrusion using their connection relationship, so as to mark the long-distance detection, thereby avoiding the inconvenience and possible danger of the workers, and increasing the practicability of the device at the same time.

[0020] The following further describes the specific implementation manners of the present utility model in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings:

[0022] Figure 1 is the overall schematic diagram of the present utility model;

[0023] Figure 2 is the partial schematic diagram of the fixing structure of the present utility model;

[0024] Figure 3 is the schematic diagram of the structure disassembly and assembly of the present utility model;

[0025] Figure 4 is the overall structural sectional schematic diagram of the present utility model;

[0026] Figure 5 Schematic cross-sectional view of the sound amplification structure of the present utility model.

[0027] In the figure: 10, handle; 11, fixed box; 12, sound amplification cylinder; 13, telescopic rod; 14, fixed block; 15, spring; 16, linkage ring; 17, clamping plate; 18, card seat; 19, sound collecting hopper; 20, bayonet; 21, slideway; 22, clamping plate; 23, left and right threaded rod; 24, hammer handle; 25, round head hammer; 26, pointed head hammer. Specific embodiments

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0029] A hollow drum hammer for building inspection, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, includes a handle 10, a telescopic rod 13 is fixedly arranged above the handle 10, and a hammer handle 24 is threadedly arranged on the telescopic rod 13; a sound amplification structure, the sound amplification structure is fixedly arranged between the handle 10 and the telescopic rod 13, the sound amplification structure includes a fixed box 11 and a sound amplification cylinder 12, the sound amplification cylinder 12 is fixedly arranged on one side of the fixed box 11, and the telescopic rod 13 is fixedly arranged inside the fixed box 11; a fixing structure, the fixing structure is fixedly arranged at the top of the telescopic rod 13, the fixing structure includes a fixed block 14, a clamping plate 17, a card seat 18, a sound collecting hopper 19, a clamping plate 22 and a left and right threaded rod 23, the card seat 18 is fixedly arranged on the bottom surface of the sound collecting hopper 19, the hammer handle 24 is movably arranged above the sound collecting hopper 19, the fixed block 14 is fixedly arranged above the telescopic rod 13, the clamping plate 17 is elastically arranged inside the fixed block 14, the card seat 18 is movably arranged on the top surface of the fixed block 14, the left and right threaded rod 23 is rotatably arranged inside the sound collecting hopper 19, and the clamping plate 22 is slidably arranged inside the sound collecting hopper 19.

[0030] The working principle is as follows: when the device is in use, the sound-speaking structure is fixed by the fixing structure, and the sound is conducted by the hammer handle 24 and the telescopic rod 13. By setting the sound-speaking structure, when dealing with long-distance detection, the sound conducted by the hammer handle 24 is collected by the sound collecting bucket 19, and then the sound is conducted by the telescopic rod 13 to reach the fixed box 11, and then conducted inside the fixed box 11, and released by the speakers 12 on both sides. In this way, the sound conduction limitation caused by the long distance can be overcome, and the range of the conducted sound can be narrowed, thereby helping the staff to make the most accurate judgment, thereby avoiding detection errors; By setting a fixed structure, the sound collecting bucket 19 is fixed from the outside by utilizing the connection between the clamping plate 17, the clamping seat 18 and the fixing block 14, and the shape of the hammer handle 24 and the cooperation of the telescopic rod 13 are utilized to squeeze the sound collecting bucket, so that the hammer handle 24 can be easily disassembled and replaced without affecting the conduction of sound, thereby facilitating the inspection and judgment of the building by the staff, and by providing the positive and negative threaded rods 23 and the clamping plate 22, the connection relationship between the two is utilized to clamp the marker pen by squeezing, so as to mark the long-distance inspection, thereby avoiding the inconvenience of the workers and the possible danger, and increasing the practicality of the device.

[0031] like Figure 1 As shown, the top surface of the handle 10 is fixedly connected to the bottom surface of the fixing box 11, two speakers 12 are provided, and the two speakers 12 are respectively fixedly arranged on both sides of the fixing box 11, a truncated cone cavity is opened in the speaker 12, and a cylindrical cavity is opened in the fixing box 11, and the cylindrical cavity and the two truncated cone cavities form a U-shaped through cavity.

[0032] The working principle is as follows: the sound is conducted through the telescopic rod 13 to the cylindrical cavity of the fixed box 11. The thicker wall of the cylindrical cavity can conduct the sound more clearly. At the same time, the truncated cone cavity is designed to be small inside and large outside. In this way, the sound is conducted through the cylindrical cavity and then reaches the large end through the small end of the truncated cone cavity to be released externally, which can achieve the effect of amplifying the sound, so that the staff can hear more clearly.

[0033] like Figure 1 , Figure 3 and Figure 5 As shown, a circular hole is provided on the top surface of the fixing box 11, and the fixing box 11 is fixedly connected to the telescopic rod 13 through the circular hole. The inner side of the top end of the telescopic rod 13 is set as a threaded hole, and the hammer handle 24 is a T-shaped column. The bottom end of the hammer handle 24 is set as a threaded column. The hammer handle 24 is threadedly connected with the thread inside the telescopic rod 13 through the threaded column at the bottom end; Figure 2 As shown, a hexagonal fixed block 14 is fixedly connected to the top curved surface of the telescopic rod 13, and six cross-shaped slots are evenly provided on the side of the fixed block 14. A card plate 17 is slidably connected in the cross-shaped slot, and a spring 15 is fixedly arranged between the card plate 17 and the cross-shaped slot, and the card plate 17 is elastically connected to the fixed block 14 through the spring 15; Figure 2 and Figure 3As shown, the card seat 18 is a hexagonal block. A cross-shaped card slot with the same shape but different length from the fixed block 14 is provided on the side of the card seat 18. The top end of the card plate 17 is clamped in the cross-shaped card slot. On the same side of the six card plates 17 away from the fixed block 14, a linkage ring 16 is fixedly connected. The linkage ring 16 slides on the outside of the fixed block 14; as Figure 3 and Figure 4 shown, a round head hammer 25 and a pointed head hammer 26 are symmetrically arranged above the hammer handle 24 respectively. The round head hammer 25 and the pointed head hammer 26 are both fixedly connected to the same hammer handle 24. The sound collecting hopper 19 is in the shape of a funnel. A funnel-shaped through cavity is provided inside the sound collecting hopper 19. A bayonet 20 is provided above the sound collecting hopper 19. The hammer handle 24 is clamped in the bayonet 20.

[0034] The specific implementation method is as follows. Before use, first insert the hammer handle 24 into the sound collecting hopper 19. At this time, the threaded column end of the hammer handle 24 is in the exposed state and the hammer handle 24 is clamped in the bayonet 20. At this time, press the linkage ring 16 to make the linkage ring 16 drive all the card plates 17 to squeeze the spring 15 and move down in the cross-shaped card slot of the fixed block 14. Then thread-fix the exposed part of the hammer handle 24 to the top end of the telescopic rod 13. After complete fixation, ensure that the cross-shaped card slot of the card seat 18 is opposite to the cross-shaped card slot of the fixed block 14, and then release the linkage ring 16. The card plate 17 rebounds under the action of the spring 15. At this time, the card plate 17 moves up in the cross-shaped card slot of the card seat 18. At the same time, the card plate uses its own shape to engage with the card seat 18, tightly connecting the card seat 18 and the fixed block 14. At this time, the sound collecting hopper 19 and the telescopic rod 13 are fixed.

[0035] As Figure 3 shown, two semi-circular plates are fixedly connected above the sound collecting hopper 19. The two semi-circular plates are symmetrically distributed with the bayonet 20 as the midline. A slideway 21 is provided inside one of the semi-circular plates. A rotating hole is provided in the slideway 21. The rotating hole is rotatably connected to a positive and negative threaded rod 23 through a bearing. Two clamping plates 22 are provided. A convex block is provided at the bottom of the clamping plate 22. A threaded hole is provided in the convex block. The clamping plate 22 is threadedly connected to the positive and negative threaded rod 23 through the threaded hole in the convex block. The convex block slides in the slideway 21. The two clamping plates 22 are respectively threadedly arranged at both ends of the positive and negative threaded rod 23.

[0036] **Specific implementation manner**: When it is necessary to mark a building, rotate the positive and negative threaded rod 23. One end of the positive and negative threaded rod 23 exposed outside the sound collecting hopper 19 is fixedly connected with a handle. The rotation of the positive and negative threaded rod 23 is controlled by rotating the handle. The two ends of the positive and negative threaded rod 23 have threads in different directions. At the same time, the bumps at the bottoms of the two opposite clamping plates 22 are also opposite, and the pitch of the threaded holes in the two bumps is opposite. Therefore, when the positive and negative threaded rod 23 is rotated by the handle, the two clamping plates 22 will slide in the slideway 21 by means of the bumps. When rotating forward, the two clamping plates 22 are simultaneously pressed inward. When the positive and negative threaded rod 23 is rotated in the reverse direction, the two clamping plates 22 are simultaneously released towards both ends, so as to realize the clamping and relaxation of the marker pen.

[0037] It can be understood that the present invention is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. An empty drum hammer for building inspection, characterized in that, including a handle (10), an expansion rod (13) is fixedly arranged above the handle (10), and a hammer handle (24) is threadedly arranged on the expansion rod (13); a sound amplification structure, the sound amplification structure is fixedly arranged between the handle (10) and the expansion rod (13), the sound amplification structure includes a fixed box (11) and a sound amplification cylinder (12), the sound amplification cylinder (12) is fixedly arranged on one side of the fixed box (11), and the expansion rod (13) is fixedly arranged in the fixed box (11); a fixing structure, the fixing structure is fixedly arranged at the top end of the expansion rod (13), the fixing structure includes a fixing block (14), a clamping plate (17), a clamping seat (18), a sound collecting hopper (19), a clamping plate (22) and a positive and negative threaded rod (23), the clamping seat (18) is fixedly arranged on the bottom surface of the sound collecting hopper (19), the hammer handle (24) is movably arranged above the sound collecting hopper (19), the fixing block (14) is fixedly arranged above the expansion rod (13), the clamping plate (17) is elastically arranged in the fixing block (14), the clamping seat (18) is movably arranged on the top surface of the fixing block (14), the positive and negative threaded rod (23) is rotatably arranged inside the sound collecting hopper (19), and the clamping plate (22) is slidably arranged inside the sound collecting hopper (19).

2. The hollow drum hammer for building inspection according to claim 1, characterized in that, The top surface of the handle (10) is fixedly connected to the bottom surface of the fixed box (11), there are two sound amplification cylinders (12), and the two sound amplification cylinders (12) are respectively fixedly arranged on both sides of the fixed box (11). A frustum cavity is formed inside the sound amplification cylinder (12), a cylindrical cavity is formed inside the fixed box (11), and the cylindrical cavity and the two frustum cavities form a U-shaped through cavity.

3. The hollow drum hammer for building inspection according to claim 2, characterized in that, A round hole is formed in the top surface of the fixed box (11), the fixed box (11) is fixedly connected to the expansion rod (13) through the round hole, the inner side of the top end of the expansion rod (13) is provided as a threaded hole, the hammer handle (24) is a T-shaped column, the bottom end of the hammer handle (24) is provided as a threaded column, and the hammer handle (24) is threadedly connected to the thread inside the expansion rod (13) through the threaded column at the bottom end.

4. The hollow drum hammer for building inspection according to claim 3, characterized in that, A hexagonal fixing block (14) is fixedly connected to the top curved surface of the expansion rod (13). Six cross-shaped card slots are evenly formed in the side surface of the fixing block (14). The clamping plate (17) is slidably connected inside the cross-shaped card slot. A spring (15) is fixedly arranged between the clamping plate (17) and the cross-shaped card slot. The clamping plate (17) is elastically connected to the fixing block (14) through the spring (15).

5. The hollow drum hammer for building inspection according to claim 4, characterized in that, The clamping seat (18) is a hexagonal block. A cross-shaped card slot with the same shape but different length from the fixing block (14) is formed in the side surface of the clamping seat (18). The top end of the clamping plate (17) is clamped in the cross-shaped card slot. The same-side of the six clamping plates (17) away from the fixing block (14) is fixedly connected with a linkage ring (16), and the linkage ring (16) slides on the outside of the fixing block (14).

6. The hollow drum hammer for building inspection according to claim 3, characterized in that, Above the hammer handle (24), a round - headed hammer (25) and a pointed - headed hammer (26) are symmetrically arranged respectively. The round - headed hammer (25) and the pointed - headed hammer (26) are both fixedly connected to the same hammer handle (24). The sound - collecting funnel (19) is in the shape of a funnel. A funnel - shaped through - cavity is provided inside the sound - collecting funnel (19). A bayonet (20) is provided above the sound - collecting funnel (19). The hammer handle (24) is clamped in the bayonet (20).

7. An empty drum hammer for building inspection according to claim 6, characterized in that, Above the sound - collecting funnel (19), two semi - circular plates are fixedly connected. The two semi - circular plates are symmetrically distributed with the bayonet (20) as the center line. A slideway (21) is provided inside one of the semi - circular plates. A rotating hole is provided in the slideway (21). A left - right threaded rod (23) is rotatably connected to the rotating hole through a bearing. Two clamping plates (22) are provided. A convex block is provided at the bottom of the clamping plate (22). A threaded hole is provided inside the convex block. The clamping plate (22) is threadedly connected to the left - right threaded rod (23) through the threaded hole inside the convex block. The convex block slides in the slideway (21). The two clamping plates (22) are respectively threadedly arranged at both ends of the left - right threaded rod (23).

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