Hollow drum hammer

Abstract

The hollowing hammer comprises a holding rod, telescopic rods and a hammer head, a first telescopic rod is nested at one end of the holding rod, a detachable marking structure is arranged at the other end of the holding rod, a detachable connecting block is arranged at the end, away from the holding rod, of the first telescopic rod, containing cavities are formed in the two sides of one end of the connecting block respectively, and the other end of the connecting block is fixedly connected with the hammer head. And two groups of telescopic quick release structures are respectively arranged in the two accommodating cavities. The hammer head can be detached through the quick detaching structure, the structure is simple, storage is convenient, the carrying convenience of workers is improved, through the detachable and telescopic marking structure, when the hammer head is used, the marking pen point is contracted into the shell, clothes of a user are prevented from being scratched by the marking pen point, and when marking is used, only the limiting blocks on the two sides need to be rotated, and the marking pen point can be conveniently taken out. The marking pen point is driven to stretch out through the telescopic rod and the second spring, the hollowing position can be marked, the surface of the ceramic tile can be conveniently inspected, meanwhile, the hollowing ceramic tile can be conveniently marked, and the project quality acceptance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering management, in particular to a hollow drum hammer. Background Art

[0002] Hollowing hammers are widely used to inspect the degree of hollowing of walls and the quality of adhesion between sand, ash, bricks and frozen cement. The working principle of the hollowing hammer used in construction projects is to judge whether there is a hollowing problem on the wall or the ground by knocking and listening to the timbre of the sound when it contacts the wall or the ground.

[0003] A hollow hammer for engineering management with publication number CN217212469U relates to the technical field of engineering management, and is intended to solve the problem that the telescopic rod of a traditional hollow hammer is prone to vibration and sound, which affects the overall measurement accuracy of the hollow hammer. The key points of its technical solution are: it includes a rod body, the rod body includes a gripping tube, a telescopic tube 1 and a telescopic tube 2 nested in sequence, a hammer head is fixedly connected to the side of the telescopic tube 2 away from the gripping tube, and a silencer that abuts against the hammer head is provided on the side of the telescopic tube 2 close to the hammer head. The utility model reduces the sound of the vibration of the rod body through the setting of the structure, so that the user can judge the feedback sound of the object to be measured more accurately, and improve the overall measurement accuracy of the hollow hammer. In addition, the existing hollow hammers also have the following disadvantages during use:

[0004] (1) The hammer head of the existing hollow hammer is inconvenient to disassemble, which increases the storage space of the user and brings inconvenience to the staff in terms of carrying;

[0005] (2) The existing hollowing hammer is not provided with a marking structure, and an additional marking device is required to mark the hollowing position. This method not only affects the efficiency of project quality acceptance, but also is inconvenient to mark the hollowing position. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a hollow drum hammer.

[0007] In order to solve the above problems, the technical solution of the utility model is as follows: it includes a grip rod, a telescopic rod and a hammer head, the telescopic rod is nested in one end of the grip rod, and a detachable marking structure is provided at the other end, a detachable connecting block is provided at the end of the telescopic rod away from the grip rod, cavities are respectively provided on both sides of one end of the connecting block, and the other end is fixedly connected to the hammer head, and two groups of telescopic quick-release structures are respectively provided in the two cavities.

[0008] Furthermore, each group of the quick-release structure includes a spring 1, a sliding rod, an insert rod, a slider and a pushing rod. A spring 1 is provided on one side of the interior of the cavity, and a sliding rod is provided on the other side. One end of the spring 1 is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the insert rod. Both sides of the sliding rod are respectively fixedly connected to the inner walls of the cavity. The outer wall of the sliding rod is sleeved with the sliding rod. A connecting rod for connection is provided between the sliding rod and the insert rod, and the side of the sliding rod away from the connecting rod is fixedly connected to the pushing rod.

[0009] Furthermore, the marking structure includes a shell, a fixed column, a marking pen tip, a telescopic rod 2, a spring 2 and a threaded column, one end of the shell is fixedly connected to the threaded column, and the other end is provided with a telescopic rod 2 inside, one end of the telescopic rod 2 is fixedly connected to the inner wall of the shell, and the other end is fixedly connected to the fixed column, the outer wall of the telescopic rod 2 is wrapped with the spring 2, and the marking pen tip is embedded in the end of the fixed column away from the telescopic rod 2.

[0010] Furthermore, slots adapted to the quick-release structure are respectively provided on both sides of one end of the telescopic rod away from the gripping rod, and a threaded hole is provided on one end of the gripping rod close to the marking structure.

[0011] Furthermore, one end of the insertion rod away from the spring passes through the cavity and is adaptively connected to the slot, and one end of the push rod away from the slider passes through the cavity and is fixedly connected to the button.

[0012] Furthermore, the shell has limit grooves on both sides of one end away from the threaded column, and the two limit grooves are L-shaped. The fixed column has limit blocks on both sides of one end close to the second telescopic rod, and the two limit blocks are respectively adapted to be connected with the limit grooves, and the threaded column is threadedly connected with the threaded hole.

[0013] The advantages of the utility model compared with the existing technology are:

[0014] 1. The utility model provides a hollow drum hammer, which is provided with a quick-release structure. By pressing buttons on both sides, the push rod is driven to move into the cavity, and the push rod drives the slider, the connecting rod and the insertion rod to move into the cavity, so that the insertion rod extrusion spring is separated from the limit of the slot, and the hammer head can be disassembled. The structure is simple, the storage is convenient, and the convenience of carrying is increased;

[0015] 2. The utility model provides a hollowing hammer, which has a detachable and retractable marking structure. The marking structure can be disassembled and installed by rotating the shell to drive the threaded column to rotate. The marking pen tip can be retracted by sliding the limit blocks on both sides toward the threaded column and squeezing the telescopic rod 2 and the spring 2, and rotating the limit blocks. When the hammer head is in use, the marking pen tip can be prevented from scratching the user's clothes. When marking, it is only necessary to rotate the limit blocks on both sides and drive the marking pen tip to extend through the telescopic rod 2 and the spring 2 to mark the hollow area, which is convenient for inspecting the tile surface and marking the hollow tiles, thereby increasing the efficiency of project quality acceptance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereogram of the utility model.

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 yes Figure 2 Schematic diagram of the internal structure of the middle shell.

[0019] Figure 4 yes Figure 1 A magnified view of the internal structure at point B in the middle.

[0020] As shown in the figure: 1. Grip; 2. Telescopic rod 1; 3. Connecting block; 4. Hammer; 5. Quick release structure; 501. Spring 1; 502. Sliding rod; 503. Inserting rod; 504. Sliding block; 505. Connecting rod; 506. Push rod; 507. Button; 6. Marking structure; 601. Shell; 602. Limiting groove; 603. Fixed column; 604. Limiting block; 605. Marking pen tip; 606. Telescopic rod 2; 607. Spring 2; 608. Threaded column; 7. Threaded hole; 8. Slot. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] like Figure 1As shown, it includes a grip 1, a telescopic rod 2 and a hammer 4, wherein the telescopic rod 2 is nested at one end of the grip 1, and a detachable marking structure 6 is provided at the other end, a detachable connecting block 3 is provided at the end of the telescopic rod 2 away from the grip 1, cavities are provided on both sides of one end of the connecting block 3, and the other end is fixedly connected to the hammer 4, two groups of telescopic quick-release structures 5 are provided in the two cavities, slots 8 adapted to the quick-release structures 5 are provided on both sides of the end of the telescopic rod 2 away from the grip 1, and a threaded hole 7 is provided at the end of the grip 1 close to the marking structure 6.

[0023] like Figure 2 and 3 As shown, the marking structure 6 includes a shell 601, a fixed column 603, a marking pen 605, a telescopic rod 606, a spring 607 and a threaded column 608. One end of the shell 601 is fixedly connected to the threaded column 608, and the other end is provided with a telescopic rod 606. One end of the telescopic rod 606 is fixedly connected to the inner wall of the shell 601, and the other end is fixedly connected to the fixed column 603. The outer wall of the telescopic rod 606 is wound with the spring 607. The marking pen 605 is embedded in the end of the fixed column 603 away from the telescopic rod 606. Limiting grooves 602 are respectively provided on both sides of the end of the shell 601 away from the threaded column 608. The two limiting grooves 602 are L-shaped. The two sides of the fixed column 603 close to the telescopic rod 606 are fixedly connected to limiting blocks 604. The two limiting blocks 604 are respectively connected to the limiting grooves 605. 02 Adaptive connection, the threaded column 608 is threadedly connected with the threaded hole 7. Through the detachable and retractable marking structure 6, the threaded column 608 is driven to rotate by rotating the shell 601, so as to complete the disassembly and installation of the marking structure 6. By sliding the limit blocks 604 on both sides toward the threaded column 608, and squeezing the telescopic rod 2 606 and the spring 2 607, the marking pen head 605 can be retracted by rotating the limit blocks 604. When the hammer head 4 is in use, the marking pen head 605 can be prevented from scratching the user's clothes. When using the marking, it is only necessary to rotate the limit blocks 604 on both sides, and the marking pen head 605 can be driven to extend through the telescopic rod 2 606 and the spring 2 607 to mark the hollow area, which is convenient for inspecting the tile surface and marking the hollow tiles, thereby increasing the efficiency of project quality acceptance.

[0024] like Figure 4As shown, each set of quick-release structures 5 includes a spring 501, a slide bar 502, an insertion rod 503, a slider 504 and a push rod 506. A spring 501 is provided on one side of the cavity, and a slide bar 502 is provided on the other side. One end of the spring 501 is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the insertion rod 503. Both sides of the slide bar 502 are respectively fixedly connected to the inner wall of the cavity. The outer wall of the slide bar 502 is sleeved with the slider 504. A connecting rod 505 for connection is provided between the slider 504 and the insertion rod 503. The side of the slider 504 away from the connecting rod 505 is fixedly connected The push rod 506 and the insertion rod 503 have one end away from the spring 501 pass through the cavity and are adapted to be connected with the slot 8. The end of the push rod 506 away from the slider 504 passes through the cavity and is fixedly connected with the button 507. By pressing the buttons 507 on both sides, the push rod 506 is driven to move into the cavity. The slider 504, the connecting rod 505 and the insertion rod 503 are driven to move into the cavity by the push rod 506, so that the insertion rod 503 squeezes the spring 501 and disengages from the limit of the slot 8, and the hammer head can be disassembled. The structure is simple, convenient for storage, and increases the convenience of carrying for the staff.

[0025] In specific use, refer to Figures 1 to 4 As shown, first press the buttons 507 on both sides to drive the push rod 506 to move into the cavity, and the push rod 506 drives the slider 504, the connecting rod 505 and the insertion rod 503 to move into the cavity, so that the insertion rod 503 squeezes the spring 1 501, and then the connecting block 3 is inserted into the interior of the telescopic rod 1 2, and then release the button 507, and the spring 1 501 pushes the insertion rod 503 to insert into the slot 8 to complete the connection with the hammer head 4, and then the rotating shell 601 drives the threaded column 608 to be screwed into the threaded hole 7, and then the hammer head 4 can be connected. After the installation of the marking structure 6 is completed, when the hammer head 4 is used, the limit blocks 604 on both sides are slid toward the direction of the threaded column 608, and the telescopic rod 2 606 and the spring 2 607 are squeezed, and the marking pen tip 605 can be fixed inside the shell 601 by rotating the limit blocks 604. When the marking structure is used, it is only necessary to rotate the grip 1, and then rotate the limit blocks 604 on both sides, and the marking pen tip 605 is extended through the telescopic rod 2 606 and the spring 2 607, and then the fixed column 603 can be held to mark the empty hammer.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A hollow drum hammer, characterized in that: The invention comprises a gripping rod (1), a telescopic rod (2) and a hammer (4); the telescopic rod (2) is nested at one end of the gripping rod (1), and a detachable marking structure (6) is provided at the other end; a detachable connecting block (3) is provided at the end of the telescopic rod (2) away from the gripping rod (1); cavities are respectively provided on both sides of one end of the connecting block (3), and the other end is fixedly connected to the hammer (4); two groups of telescopic quick-release structures (5) are respectively provided in the two cavities.

2. A hollow drum hammer according to claim 1, characterized in that: Slots (8) adapted to the quick-release structure (5) are respectively provided on both sides of the end of the telescopic rod (2) away from the gripping rod (1), and a threaded hole (7) is provided on the end of the gripping rod (1) close to the marking structure (6).

3. The hollow drum hammer according to claim 1, characterized in that: Each group of the quick-release structure (5) comprises a spring (501), a sliding rod (502), an insertion rod (503), a slider (504) and a pushing rod (506); a spring (501) is provided on one side of the interior of the cavity, and a sliding rod (502) is provided on the other side; one end of the spring (501) is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the insertion rod (503); both sides of the sliding rod (502) are respectively fixedly connected to the inner wall of the cavity; the outer wall of the sliding rod (502) is sleeved with the sliding rod (504); a connecting rod (505) for connection is provided between the sliding rod (504) and the insertion rod (503); and the side of the sliding rod (504) away from the connecting rod (505) is fixedly connected to the pushing rod (506).

4. A hollow drum hammer according to claim 3, characterized in that: One end of the insertion rod (503) away from the spring (501) passes through the cavity and is adaptively connected to the slot (8), and one end of the push rod (506) away from the slider (504) passes through the cavity and is fixedly connected to the button (507).

5. The hollow drum hammer according to claim 1, characterized in that: The marking structure (6) comprises a shell (601), a fixed column (603), a marking pen tip (605), a second telescopic rod (606), a second spring (607) and a threaded column (608); one end of the shell (601) is fixedly connected to the threaded column (608), and the other end is provided with the second telescopic rod (606); one end of the second telescopic rod (606) is fixedly connected to the inner wall of the shell (601), and the other end is fixedly connected to the fixed column (603); the outer wall of the second telescopic rod (606) is wound with the second spring (607); and the marking pen tip (605) is embedded in the end of the fixed column (603) away from the second telescopic rod (606).

6. A hollow drum hammer according to claim 5, characterized in that: Limiting grooves (602) are respectively provided on both sides of one end of the shell (601) away from the threaded column (608), and the two limiting grooves (602) are L-shaped. Limiting blocks (604) are respectively fixedly connected to both sides of one end of the fixed column (603) close to the second telescopic rod (606), and the two limiting blocks (604) are respectively adapted to be connected to the limiting grooves (602), and the threaded column (608) is threadedly connected to the threaded hole (7).

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