Steel needle hammer for building quality detection

Abstract

The utility model relates to the technical field of building quality detection tools, in particular to a steel needle hammer for building quality detection, which comprises a handle, a connecting rod is slidably connected in the handle, an adjusting mechanism for limiting the connecting rod is arranged in the handle, a vertical rod is fixed on the left side of the connecting rod, and a hammer head is fixed on the lower surface of the vertical rod. A steel needle body is fixed to the upper surface of the vertical rod, and a protective sleeve is arranged on the upper surface of the vertical rod. According to the steel needle hammer for building quality detection, a rotary handle is rotated, a threaded rod is driven to rotate in a threaded hole, a push plate is driven to move, limiting on a movable plate is relieved, the movable plate can reset under the action of a first spring, a clamping rod is made to be away from a clamping groove, and then the position of a connecting rod can be adjusted; the threaded rod is driven to rotate and the push plate is driven to move, the push plate pushes the moving plate and the clamping rod to move together and extrude the first spring, the clamping rod is clamped into the clamping groove, the connecting rod is limited, and length adjustment is completed.

Description

Technical Field

[0001] This application relates to the technical field of building quality inspection tools, specifically a steel needle hammer for building quality inspection. Background Art

[0002] The steel needle hammer is a commonly used tool in the quality inspection process of building projects. When in use, the hammer gently taps on glass, mosaics, and tiles to judge the degree of hollowing and bonding quality. Then, pull out the plastic handle, and inside is a pointed steel needle. The steel needle is poked on the object to be inspected several times to detect whether the mortar in the porous board gaps, brick joints, etc. is full.

[0003] For example, a steel needle hammer convenient for inspection operation disclosed in a Chinese patent (Publication No.: CN213843122U) includes a sleeve. The inner wall of the sleeve is in clearance fit with a cross bar. The right end of the cross bar is fixedly connected with a handle. The inner wall of the handle is in clearance fit with the outer wall of the sleeve. This utility model relates to the technical field of building engineering. The steel needle hammer convenient for inspection operation has a relatively novel overall structure and low operation difficulty. Its specific beneficial effects are as follows. Through the cooperation between the handle, cross bar, sleeve, first spring, bracket, and clamping rod, the steel needle hammer convenient for inspection operation can be telescopically retracted for convenient carrying by users. And the retraction operation is simple and convenient to operate. Moreover, one end of the conical hammer can be retracted into the inside of the thick rod, avoiding scratching external objects during the carrying process and playing a protective role for the carrier. Therefore, the steel needle hammer convenient for inspection operation can better meet the usage needs of people and is suitable for popularization and use.

[0004] The above-mentioned steel needle hammer convenient for inspection operation still has certain deficiencies. When using this steel needle hammer convenient for inspection operation, pull the thick rod to make the thick rod move away from the handle. The thick rod drives the sleeve to move left along the outer wall of the cross bar. When the bracket is clamped with the clamping rod, the position of the sleeve is fixed. However, it can only adjust the thick rod to a certain length and cannot be adjusted to a suitable position according to needs. It not only has poor practicability but also causes discomfort to different users during use, affecting the use experience. Therefore, this application proposes a steel needle hammer for building quality inspection to solve the above problems. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a steel needle hammer for building quality inspection, which has the advantages of convenient adjustment, etc., and solves the problem of inconvenient adjustment of the existing steel needle hammer.

[0006] To achieve the above object, the present application provides the following technical solutions: A steel needle hammer for building quality inspection, including a handle, wherein a connecting rod is slidably connected inside the handle, an adjusting mechanism for limiting the connecting rod is provided inside the handle, a vertical rod is fixed to the left side of the connecting rod, a hammer head is fixed to the lower surface of the vertical rod, a steel needle body is fixed to the upper surface of the vertical rod, a protective sleeve is provided on the upper surface of the vertical rod, and a limiting mechanism for fixing the protective sleeve is provided inside the vertical rod;

[0007] The adjusting mechanism includes a limiting component and a moving component. The limiting component includes two sliding rods fixed between the upper and lower sides of the inner cavity of the handle, a first spring sleeved on the outer surface of the sliding rods, a moving plate slidably connected to the outer surfaces of the two sliding rods, a plurality of clamping rods fixed to the lower surface of the moving plate, and a plurality of clamping grooves opened on the upper surface of the connecting rod.

[0008] With the above technical solution, after adjusting the position of the connecting rod, it is fixed by the adjusting mechanism, and the protective sleeve is fixed by the limiting mechanism to prevent the steel needle body from causing harm to people.

[0009] Further, the moving component includes a push plate abutted against the upper surface of the moving plate, a threaded hole opened on the upper surface of the handle, and a threaded rod threadedly connected inside the threaded hole.

[0010] With the above technical solution, after adjusting the position of the connecting rod, it is fixed by the adjusting mechanism.

[0011] Further, the upper surface of the first spring is fixed to the lower surface of the moving plate, and the lower surface of the first spring is fixed to the lower surface of the inner cavity of the handle.

[0012] With the above technical solution, the moving plate is reset by the first spring, driving the clamping rod away from the inside of the clamping groove, facilitating the adjustment of the position of the connecting rod.

[0013] Further, T-shaped blocks are fixed to both the upper and lower sides of the connecting rod, T-shaped grooves are opened on both the upper and lower sides of the inner cavity of the handle, and the T-shaped blocks are slidably connected inside the T-shaped grooves.

[0014] With the above technical solution, the stability of the connecting rod during movement is increased.

[0015] Further, the clamping rod is slidably connected inside the clamping groove, and the lower surface of the threaded rod is rotatably connected to the upper surface of the push plate through a bearing seat.

[0016] With the above technical solution, the connecting rod is limited by the clamping rod being inserted into the inside of the clamping groove, and the moving plate is pushed to move by the push plate.

[0017] Further, the limiting mechanism includes two insertion blocks fixed to the lower surface of the protective sleeve, two slots opened on the upper surface of the vertical rod, two cavities opened inside the vertical rod, telescopic rods fixed to the opposite sides of the inner cavities of the two cavities, second springs sleeved on the outer surfaces of the telescopic rods, moving blocks fixed to the opposite sides of the two telescopic rods, pull rods fixed to the fronts of the moving blocks, clamping blocks fixed to the opposite sides of the two moving blocks, and clamping holes opened on the opposite sides of the two insertion blocks.

[0018] With the above technical solution, the protective sleeve is fixed by the limiting mechanism to prevent the steel needle body from causing harm to people.

[0019] Further, the clamping block is slidably connected to the inside of the clamping hole, and the insertion block is slidably connected to the inside of the slot.

[0020] With the above technical solution, the protective sleeve is installed and fixed.

[0021] Further, the opposite sides of the two second springs are respectively fixed to the opposite sides of the inner cavities of the two cavities, and the opposite sides of the two second springs are respectively fixed to the opposite sides of the two moving blocks.

[0022] With the above technical solution, the moving block is reset by the second spring, driving the clamping block to snap into the inside of the clamping hole to fix the protective sleeve.

[0023] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0024] 1. For the steel needle hammer for building quality inspection, rotate the rotary handle, drive the threaded rod to rotate in the threaded hole, and drive the push plate to move, releasing the limit on the moving plate. The moving plate will reset under the action of the first spring, moving the clamping rod away from the clamping groove, and then the position of the connecting rod can be adjusted. After adjustment, rotate the rotary handle in the reverse direction, drive the threaded rod to rotate and drive the push plate to move. The push plate pushes the moving plate and the clamping rod to move together and compress the first spring, and the clamping rod snaps into the inside of the clamping groove to limit the connecting rod, completing the length adjustment.

[0025] 2. For the steel needle hammer for building quality inspection, pull the pull rod, drive the moving block and the clamping block to move together and compress the second spring, and the clamping block moves away from the clamping hole, then the protective sleeve can be pulled out to use the steel needle body. When not in use, insert the insertion block into the inside of the slot, release the pull rod, and the moving block resets, making the clamping block snap into the inside of the clamping hole to fix the protective sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present application;

[0027] Figure 2 is a three-dimensional external view of the present application;

[0028] Figure 3 For this application Figure 1 Schematic diagram of the enlarged structure at position A in the application;

[0029] Figure 4 For this application Figure 1 Schematic diagram of the enlarged structure at position B in the application.

[0030] In the figure: 1. Handle; 2. Connecting rod; 3. Adjusting mechanism; 301. Card slot; 302. Threaded hole; 303. Threaded rod; 304. Push plate; 305. Slide bar; 306. First spring; 307. Moving plate; 308. Card rod; 4. Vertical rod; 5. Limiting mechanism; 501. Cavity; 502. Telescopic rod; 503. Second spring; 504. Moving block; 505. Pull rod; 506. Card block; 507. Card hole; 508. Insert block; 509. Slot; 6. Steel needle body; 7. Protective sleeve; 8. Hammer head. Specific embodiments

[0031] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0032] Please refer to Figure 1-2 , the steel needle hammer for building quality inspection in this embodiment includes a handle 1. A connecting rod 2 is slidably connected inside the handle 1. An adjusting mechanism 3 for limiting the connecting rod 2 is provided inside the handle 1. After adjusting the position of the connecting rod 2, it is fixed by the adjusting mechanism 3. A vertical rod 4 is fixed to the left side of the connecting rod 2. A hammer head 8 is fixed to the lower surface of the vertical rod 4. A steel needle body 6 is fixed to the upper surface of the vertical rod 4. A protective sleeve 7 is provided on the upper surface of the vertical rod 4. A limiting mechanism 5 for fixing the protective sleeve 7 is provided inside the vertical rod 4. The protective sleeve 7 is fixed by the limiting mechanism 5 to prevent the steel needle body 6 from causing harm to people.

[0033] Among them, T-shaped blocks are fixed on both the upper and lower sides of the connecting rod 2. T-shaped grooves are opened on both the upper and lower sides of the inner cavity of the handle 1. The T-shaped blocks are slidably connected inside the T-shaped grooves to increase the stability of the connecting rod 2 during movement.

[0034] It should be noted that when in use, the hammer head 8 gently taps on glass, mosaics, and tiles to judge the degree of hollowing and bonding quality. By poking the steel needle body 6 on the object to be inspected several times, it can be detected whether the mortar in porous board gaps, brick joints, etc. is full.

[0035] Please refer to Figure 3, in order to limit the connecting rod 2, the adjusting mechanism 3 in this embodiment includes a limiting component and a moving component. The limiting component includes two sliding rods 305 fixed between the upper and lower sides of the inner cavity of the handle 1, a first spring 306 sleeved on the outer surface of the sliding rod 305, a moving plate 307 slidably connected to the outer surfaces of the two sliding rods 305, a plurality of clamping rods 308 fixed to the lower surface of the moving plate 307, and a plurality of clamping grooves 301 formed on the upper surface of the connecting rod 2.

[0036] The moving component includes a push plate 304 abutted against the upper surface of the moving plate 307, a threaded hole 302 formed on the upper surface of the handle 1, and a threaded rod 303 threadedly connected to the inside of the threaded hole 302.

[0037] Among them, the clamping rod 308 is slidably connected to the inside of the clamping groove 301 for limiting the connecting rod 2. The lower surface of the threaded rod 303 is rotatably connected to the upper surface of the push plate 304 through a bearing seat. By rotating the threaded rod 303 in the threaded hole 302, the push plate 304 is driven to move. The upper surface of the first spring 306 is fixed to the lower surface of the moving plate 307, and the lower surface of the first spring 306 is fixed to the lower surface of the inner cavity of the handle 1. The moving plate 307 is reset by the first spring 306, driving the clamping rod 308 away from the inside of the clamping groove 301, facilitating the adjustment of the position of the connecting rod 2.

[0038] In addition, a rotating handle is fixed to the upper surface of the threaded rod 303, facilitating the rotation of the threaded rod 303. Two limiting holes are formed on the upper surface of the handle 1, and two limiting rods are fixed to the upper surface of the push plate 304. The limiting rods are slidably connected to the inside of the limiting holes, increasing the stability of the push plate 304 during movement.

[0039] In the adjusting mechanism 3 of this embodiment, rotate the rotating handle, drive the threaded rod 303 to rotate in the threaded hole 302, and drive the push plate 304 to move, releasing the limit on the moving plate 307. The moving plate 307 will be reset under the action of the first spring 306, causing the clamping rod 308 to move away from the clamping groove 301, and the position of the connecting rod 2 can be adjusted. After adjustment, rotate the rotating handle in the reverse direction, drive the threaded rod 303 to rotate and drive the push plate 304 to move. The push plate 304 pushes the moving plate 307 and the clamping rod 308 to move together and compress the first spring 306. The clamping rod 308 is inserted into the inside of the clamping groove 301 to limit the connecting rod 2, completing the length adjustment.

[0040] Please refer to Figure 4, in order to limit the protective cover 7, the limiting mechanism 5 includes two insertion blocks 508 fixed to the lower surface of the protective cover 7, two slots 509 opened on the upper surface of the vertical rod 4, two cavities 501 opened inside the vertical rod 4, a telescopic rod 502 fixed to the opposite sides of the inner cavities of the two cavities 501, a second spring 503 sleeved on the outer surface of the telescopic rod 502, a moving block 504 fixed to the opposite sides of the two telescopic rods 502, a pull rod 505 fixed to the front surface of the moving block 504, a clamping block 506 fixed to the opposite sides of the two moving blocks 504, and a clamping hole 507 is opened on each of the opposite sides of the two insertion blocks 508. By driving the moving block 504 to move through the pull rod 505, the moving block 504 makes a linear motion left and right through the telescopic rod 502, and the second spring 503 makes a linear compression motion through the telescopic rod 502.

[0041] Among them, the clamping block 506 is slidably connected to the inside of the clamping hole 507 for fixing the protective cover 7, and the insertion block 508 is slidably connected to the inside of the slot 509 for limiting the protective cover 7.

[0042] In addition, the opposite sides of the two second springs 503 are respectively fixed to the opposite sides of the inner cavities of the two cavities 501, and the opposite sides of the two second springs 503 are respectively fixed to the opposite sides of the two moving blocks 504. The moving block 504 is reset through the second spring 503, driving the clamping block 506 to be inserted into the inside of the clamping hole 507 to fix the protective cover 7.

[0043] In the limiting mechanism 5 of this embodiment, pull the pull rod 505 to drive the moving block 504 and the clamping block 506 to move together and compress the second spring 503. The clamping block 506 moves away from the clamping hole 507, and the protective cover 7 can be taken out to use the steel needle body 6. When not in use, insert the insertion block 508 into the inside of the slot 509, release the pull rod 505, and the moving block 504 resets, so that the clamping block 506 is inserted into the inside of the clamping hole 507 to fix the protective cover 7.

[0044] The working principle of the above embodiment is:

[0045] (1) When it is necessary to adjust the position of the vertical rod 4, rotate the rotary handle. The rotary handle drives the threaded rod 303 to rotate in the threaded hole 302 and drives the push plate 304 to move. The push plate 304 drives the limit rod to slide in the limit hole, increasing the stability when the push plate 304 moves. When the push plate 304 moves, the limit on the moving plate 307 is released, and the moving plate 307 will reset under the action of the first spring 306, driving the clamping rod 308 away from the clamping groove 301. At this time, the position of the connecting rod 2 can be adjusted. After the movement is completed, rotate the rotary handle in the reverse direction. The rotary handle drives the threaded rod 303 to rotate and drives the push plate 304 to move. The push plate 304 drives the moving plate 307 to slide on the outer surface of the sliding rod 305 and compress the first spring 306, driving the clamping rod 308 to be inserted into the inside of the clamping groove 301 through the moving plate 307 to limit the connecting rod 2, completing the length adjustment.

[0046] (2) When it is necessary to use the steel needle body 6, pull the two pull rods 505 relatively. The pull rods 505 drive the moving block 504 to move and compress the second spring 503 and the telescopic rod 502. The moving block 504 drives the clamping block 506 to move together, making the clamping block 506 away from the clamping hole 507. At this time, the protective sleeve 7 can be pulled out to use the steel needle body 6. When it is not needed, insert the insertion block 508 into the inside of the insertion slot 509 and release the pull rod 505. The moving block 504 will reset under the action of the second spring 503, driving the clamping block 506 to be inserted into the inside of the clamping hole 507 to fix the protective sleeve 7.

Claims

1. A steel needle hammer for building quality inspection, comprising a handle (1), characterized in that: The handle (1) is slidably connected to a connecting rod (2), an adjusting mechanism (3) for limiting the position of the connecting rod (2) is provided inside the handle (1), a vertical rod (4) is fixed to the left side of the connecting rod (2), a hammer head (8) is fixed to the lower surface of the vertical rod (4), a steel needle body (6) is fixed to the upper surface of the vertical rod (4), a protective cover (7) is provided on the upper surface of the vertical rod (4), and a limiting mechanism (5) for fixing the protective cover (7) is provided inside the vertical rod (4); The adjustment mechanism (3) comprises a limit assembly and a moving assembly, wherein the limit assembly comprises two sliding rods (305) fixed between the upper and lower sides of the inner cavity of the handle (1), a first spring (306) sleeved on the outer surface of the sliding rods (305), a moving plate (307) slidably connected to the outer surfaces of the two sliding rods (305), a plurality of clamping rods (308) fixed to the lower surface of the movable plate (307), and a plurality of clamping grooves (301) opened on the upper surface of the connecting rod (2).

2. The steel needle hammer for building quality inspection according to claim 1, characterized in that: The moving assembly comprises a push plate (304) abutting against the upper surface of the moving plate (307), a threaded hole (302) provided on the upper surface of the handle (1), and a threaded rod (303) threadedly connected to the inside of the threaded hole (302).

3. The steel needle hammer for building quality inspection according to claim 1, characterized in that: The upper surface of the first spring (306) is fixed to the lower surface of the movable plate (307), and the lower surface of the first spring (306) is fixed to the lower surface of the inner cavity of the handle (1).

4. The steel needle hammer for building quality inspection according to claim 1, characterized in that: T-shaped blocks are fixed on both upper and lower sides of the connecting rod (2), and T-shaped grooves are provided on both upper and lower sides of the inner cavity of the handle (1), and the T-shaped blocks are slidably connected to the inside of the T-shaped grooves.

5. The steel needle hammer for building quality inspection according to claim 2, characterized in that: The clamping rod (308) is slidably connected to the inside of the clamping slot (301), and the lower surface of the threaded rod (303) is rotatably connected to the upper surface of the push plate (304) via a bearing seat.

6. The steel needle hammer for building quality inspection according to claim 1, characterized in that: The limiting mechanism (5) comprises two plug blocks (508) fixed to the lower surface of the protective cover (7), two slots (509) provided on the upper surface of the vertical rod (4), two cavities (501) provided inside the vertical rod (4), a telescopic rod (502) fixed to the opposite side of the inner cavity of the two cavities (501), a second spring (503) sleeved on the outer surface of the telescopic rod (502), a moving block (504) fixed to the opposite side of the two telescopic rods (502), a pull rod (505) fixed to the front of the moving block (504), a clamping block (506) fixed to the opposite side of the two moving blocks (504), and clamping holes (507) provided on the opposite sides of the two plug blocks (508).

7. The steel needle hammer for building quality inspection according to claim 6, characterized in that: The clamping block (506) is slidably connected to the inside of the clamping hole (507), and the inserting block (508) is slidably connected to the inside of the slot (509).

8. The steel needle hammer for building quality inspection according to claim 6, characterized in that: The opposite sides of the two second springs (503) are respectively fixed to the opposite sides of the inner cavities of the two cavities (501), and the opposite sides of the two second springs (503) are respectively fixed to the opposite sides of the two moving blocks (504).

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