Hollow drum hammer for constructional engineering supervision

Abstract

The utility model relates to the technical field of hollowing hammers, and discloses a hollowing hammer for constructional engineering supervision, which comprises a holding rod, a pull rod is arranged at the inner top of the holding rod, a hammer head is mounted at the top of the pull rod, a sleeve is connected to the top of the outer wall of the pull rod, the outer wall of the sleeve is in threaded connection with a first knob, and a marking pen is arranged at the inner bottom of the holding rod. The marking pen is located in the sleeve, the end of the first rotary knob abuts against the marking pen, and a fixing assembly used for fixing the pull rod is installed at the top of the outer wall of the holding rod. According to the utility model, the marking pen is taken out and inserted into the sleeve, and then the knob I is rotated to abut against the marking pen, so that the marking pen can be fixed in the sleeve, and therefore, after a supervisor knocks and detects abnormity, the marking pen can be directly used for detection, and the phenomenon that the marking pen is taken out for marking after knocking is avoided; and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow hammers, in particular to a hollow hammer for construction engineering supervision. Background Art

[0002] A hollowing hammer is a tool specifically designed to detect hollowing in walls. It's typically a small, handle-mounted striking device, similar to a hammer, used to strike the wall. The sound produced by the hammer can be used to determine if there's a hollowing problem within the wall—a gap between the wall surface and the underlying wall, either detached or unstable.

[0003] When the existing hollowing hammer is used, if there is a hollow spot after knocking on the wall, it is necessary to take out a marking pen to mark the hollow spot, which is relatively complicated. Moreover, when the knocking point is high, it is difficult for the marking pen to mark the knocking point, which leads to a problem that the practicality of the hollowing hammer is reduced. Therefore, it is proposed to use a hollowing hammer for construction project supervision to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a hollow hammer for construction engineering supervision, aiming to improve the problem in the prior art that after knocking on the wall, a marking pen needs to be taken out to mark the hollow area, which is a relatively complicated operation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a hollow hammer for construction engineering supervision includes a grip, a pull rod is provided at the inner top of the grip, a hammer head is installed on the top of the pull rod, a sleeve is connected to the top of the outer wall of the pull rod, a knob 1 is threadedly connected to the outer wall of the sleeve, a marking pen is provided at the inner bottom of the grip, the marking pen is in the sleeve, and the end of the knob 1 is against the marking pen, and a fixing component for fixing the pull rod is installed on the top of the outer wall of the grip.

[0006] As a further description of the above technical solution:

[0007] The fixing assembly includes a second knob, which is threadedly connected to the top of the outer wall of the grip rod, and the end of the second knob is in contact with the outer wall of the pull rod.

[0008] As a further description of the above technical solution:

[0009] The bottom of the hammer head is fixedly connected with a connecting rod, and the outer wall of the connecting rod is threadedly connected to the top of the pull rod.

[0010] As a further description of the above technical solution:

[0011] A cavity is provided in the middle of the bottom surface of the grip, and the marking pen is located in the cavity.

[0012] As a further description of the above technical solution:

[0013] The bottom of the outer wall of the grip rod is threadedly connected with a sealing cover, and the sealing cover is used to seal the cavity.

[0014] As a further description of the above technical solution:

[0015] The top of the outer wall of the pull rod is fixedly connected with an ear plate, and one side of the sleeve is fixedly connected with a connecting plate, and the connecting plate is located outside the ear plate.

[0016] As a further description of the above technical solution:

[0017] A bolt is provided in the middle of the connecting plate, a nut is threadedly connected to one side of the bolt, and the bolt passes through the ear plate.

[0018] As a further description of the above technical solution:

[0019] A scale is fixedly connected to the middle portion of the outer wall of the grip rod, and scale lines are arranged on the outer wall of the scale.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present invention, the marking pen is taken out and inserted into the sleeve, and then the knob is turned to make it press against the marking pen. At this time, the marking pen can be fixed in the sleeve. Therefore, after the supervisor knocks and detects an abnormality, the marking pen can be used directly for detection, thereby avoiding the need to take out the marking pen for marking after knocking, thereby improving the practicality of the device.

[0022] 2. In the present invention, by turning the second knob, the hammer head can be pulled to pull the pull rod out from the inside of the grip rod, and the length of the combination between the pull rod and the grip rod can be extended. After the hammer head is turned, the connecting rod can be screwed out from the inside of the pull rod. During installation, the hammer head can be installed by reversing the hammer head to drive the connecting rod to rotate, thereby making the loading and unloading of the hammer head convenient, thereby further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the hollow hammer for construction engineering supervision proposed by the utility model;

[0024] Figure 2 This is a front sectional view of the hollow drum hammer for construction engineering supervision proposed by the utility model;

[0025] Figure 3 This is a disassembled diagram of the sleeve structure of the hollow drum hammer for construction engineering supervision proposed in the utility model;

[0026] Figure 4 for Figure 2A magnified view of point A in the figure;

[0027] Figure 5 for Figure 2 Enlarged view of point B in .

[0028] Legend:

[0029] 1. Grip; 2. Pull rod; 3. Hammer; 4. Sleeve; 5. Knob 1; 6. Marking pen; 7. Knob 2; 8. Connecting rod; 9. Cavity; 10. Sealing cover; 11. Ear plate; 12. Connecting plate; 13. Bolt; 14. Nut; 15. Scale; 16. Scale lines. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the specification of this utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the embodiments described are only part of the embodiments of the utility model, not 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 efforts are within the scope of protection of this utility model.

[0031] Reference Figure 1 、 Figure 2 and Figure 4 The utility model provides an embodiment: a hollow hammer for construction engineering supervision, including a grip 1, a pull rod 2 is provided at the inner top of the grip 1, a hammer head 3 is installed on the top of the pull rod 2, a sleeve 4 is connected to the top of the outer wall of the pull rod 2, a knob 5 is threadedly connected to the outer wall of the sleeve 4, a marking pen 6 is provided at the inner bottom of the grip 1, the marking pen 6 is in the sleeve 4, and the end of the knob 5 is against the marking pen 6, and a fixing component for fixing the pull rod 2 is installed on the top of the outer wall of the grip 1.

[0032] When in use, the holding rod 1 can be used to knock the movable hammer head 3 to detect the hollow area. Before use, the marking pen 6 is taken out first, and then inserted into the sleeve 4. The marking pen 6 is fixed in the sleeve 4 by tightening the knob 5. Therefore, the marking pen 6 will move with the hammer head 3. Therefore, after the hollow area is detected, the holding rod 1 can be rotated to make the marking pen 6 close to the hollow area. At this time, the holding rod 1 can be moved to drive the marking pen 6 to move and mark the hollow area. Therefore, it is possible to avoid taking out the marking pen 6 for marking after detecting the hollow area, thereby improving the convenience of marking and thus improving the practicality of the device.

[0033] Reference Figure 1 、 Figure 2 and Figure 4The fixing assembly includes a second knob 7, which is threadedly connected to the top of the outer wall of the handle 1, and the end of the second knob 7 contacts the outer wall of the pull rod 2. The bottom of the hammer head 3 is fixedly connected to a connecting rod 8, and the outer wall of the connecting rod 8 is threadedly connected to the top of the pull rod 2.

[0034] By turning knob 2 7, the squeezing of the pull rod 2 by knob 2 7 can be cancelled, and then the hammer head 3 can be pulled out to drive the pull rod 2 to slide inside the grip 1. At this time, the length of the combination between the pull rod 2 and the grip 1 can be extended, thereby increasing the moving range of the hammer head 3, avoiding the phenomenon of supervisors walking back and forth, thereby further improving the practicality of the device, and at the same time, it can also detect and mark higher areas, and when the hammer head 3 is damaged, the hammer head 3 is rotated to drive the connecting rod 8 to rotate, and the connecting rod 8 can be removed from the pull rod 2, and then the hammer head 3 can be removed. At this time, the connecting rod 8 on the new hammer head 3 can be screwed into the pull rod 2, and the hammer head 3 can be replaced, thereby making the loading and unloading of the hammer head 3 convenient, which is beneficial to the later replacement.

[0035] Reference Figure 1 、 Figure 2 and Figure 5 A cavity 9 is provided in the middle of the bottom surface of the grip 1, and the marking pen 6 is located in the cavity 9. A sealing cover 10 is threadedly connected to the bottom of the outer wall of the grip 1, and the sealing cover 10 is used to seal the cavity 9.

[0036] The cavity 9 can provide a space for placing the marking pen 6 , and the volume of the cavity 9 is larger than the size of the marking pen 6 , and the cavity 9 can be sealed by the sealing cover 10 .

[0037] Reference Figure 1 、 Figure 3 and Figure 4 The top of the outer wall of the pull rod 2 is fixedly connected to a lug plate 11, and one side of the sleeve 4 is fixedly connected to a connecting plate 12, which is located outside the lug plate 11. A bolt 13 is provided in the middle of the connecting plate 12, and a nut 14 is threadedly connected to one side of the bolt 13, and the bolt 13 passes through the lug plate 11.

[0038] After the marking pen 6 is installed, the bolt 13 and the nut 14 are rotated, and then the marking pen 6 can be moved to drive the sleeve 4 to rotate along the bolt 13 as the rotation axis, so that the distance between the marking pen 6 and the hammer head 3 can be adjusted. Therefore, the space occupied by the hammer head 3 of the device can be adjusted, and the device can be used to knock and mark narrow spaces.

[0039] Reference Figure 1 and Figure 2 A scale 15 is fixedly connected to the middle of the outer wall of the handle 1, and scale lines 16 are set on the outer wall of the scale 15.

[0040] By installing a scale 15 on the outside of the handle 1, the size of the detected area can be measured when performing the knock detection, thereby further improving the practicality of the device.

[0041] Working principle: When in use, first turn the sealing cover 10 to remove it from the grip 1, then take out the marking pen 6, reinstall the sealing cover 10, and then insert the marking pen 6 into the sleeve 4. After turning the knob 1 5, the end of the knob 1 5 will contact the marking pen 6. At this time, the marking pen 6 can be fixed in the sleeve 4, and then turn the knob 2 7. At this time, the hammer head 3 can be pulled to drive the pull rod 2 to move, and then the pull rod 2 can be pulled out from the grip 1. After reversing the knob 2 7, the end of the knob 2 7 will contact the pull rod 2. At this time, the position of the pull rod 2 in the grip 1 can be fixed. At this time, the grip 1 can be held and knocked to check whether there is a hollow. The second pull rod 2 After being pulled out, the length of the combination between the pull rod 2 and the grip 1 can be extended, thereby expanding the knocking range after holding the device. After the marking pen 6 is installed, the bolt 13 and nut 14 can be rotated. At this time, the marking pen 6 can be moved to rotate along the bolt 13 as the rotation axis. At this time, the angle between the marking pen 6 and the pull rod 2 can be adjusted. After reversing the bolt 13 and nut 14, the connecting plate 12 can be clamped to the ear plate 11. After use, reverse knob one 5 and knob two 7. At this time, the pull rod 2 can be returned to the grip 1, and then the sealing cover 10 can be removed. The marking pen 6 can be replaced in the cavity 9, and finally the sealing cover 10 can be installed.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hollow hammer for construction engineering supervision, comprising a grip (1), characterized in that: A pull rod (2) is provided at the inner top of the grip (1), a hammer head (3) is installed at the top of the pull rod (2), a sleeve (4) is connected to the top of the outer wall of the pull rod (2), a knob (5) is threadedly connected to the outer wall of the sleeve (4), a marking pen (6) is provided at the inner bottom of the grip (1), the marking pen (6) is in the sleeve (4), and the end of the knob (5) is against the marking pen (6), and a fixing component for fixing the pull rod (2) is installed at the top of the outer wall of the grip (1).

2. The hollow hammer for construction engineering supervision according to claim 1, characterized in that: The fixing assembly includes a second knob (7), which is threadedly connected to the top of the outer wall of the grip rod (1), and the end of the second knob (7) is in contact with the outer wall of the pull rod (2).

3. The hollow hammer for construction engineering supervision according to claim 1, characterized in that: The bottom of the hammer head (3) is fixedly connected to a connecting rod (8), and the threaded outer wall of the connecting rod (8) is threadedly connected to the top of the pull rod (2).

4. The hollow hammer for construction engineering supervision according to claim 1, characterized in that: A cavity (9) is provided in the middle of the bottom surface of the grip (1), and the marking pen (6) is located in the cavity (9).

5. The hollow hammer for construction engineering supervision according to claim 4, characterized in that: The bottom of the outer wall of the grip rod (1) is threadedly connected to a sealing cover (10), and the sealing cover (10) is used to seal the cavity (9).

6. The hollow hammer for construction engineering supervision according to claim 1, characterized in that: The top of the outer wall of the pull rod (2) is fixedly connected to an ear plate (11), and one side of the sleeve (4) is fixedly connected to a connecting plate (12), and the connecting plate (12) is located outside the ear plate (11).

7. The hollow hammer for construction engineering supervision according to claim 6, characterized in that: A bolt (13) is provided in the middle of the connecting plate (12), a nut (14) is threadedly connected to one side of the bolt (13), and the bolt (13) passes through the ear plate (11).

8. The hollow hammer for construction engineering supervision according to claim 1, characterized in that: A scale (15) is fixedly connected to the middle portion of the outer wall of the grip (1), and scale lines (16) are provided on the outer wall of the scale (15).

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