Building construction marking device

Abstract

The utility model discloses a building construction marking device, which relates to the field of building construction and comprises a marking barrel, a sliding disc fixed at the lower end of the marking barrel, a mounting plate mounted at the lower part of the sliding disc, a marking sponge mounted at the lower part of the mounting plate, and a protective sleeve slidably sleeved outside the sliding disc, a second spring is connected between the lower portion of the sliding disc and the inner bottom of the protective sleeve and located on the outer side of the mounting plate. A handle is fixed to the upper end of the marking barrel. The handle is held by a single hand, the pull rod can be lifted upwards, the pull rod drives the vertical piston rod to move, the vertical piston rod drives the vertical piston to slide in the vertical piston cavity, the vertical piston can suck air in the horizontal piston cavity through the communicating channel, at the moment, the horizontal piston slides into the horizontal piston cavity, and the horizontal piston rod does not abut against the inner wall of the protective sleeve. And finally, the protective sleeve can be attached to the column, the wall surface or the ground needing to be marked, the marking barrel is pressed, the marking sponge makes contact with the column, the wall surface or the ground, rapid marking work is conducted on the column, the wall surface or the ground, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a building construction marking device. Background Art

[0002] At the construction site of a current construction project, construction workers often need to mark the center line of a column, the elevation line, and the ground position to facilitate the next step of the construction workers. For this reason, a marking device is needed in construction. After searching, a utility model with a patent number of 202123275226.7 provides a construction marker. When using the construction marker, the adjustment knob needs to be rotated clockwise or counterclockwise, which means that the adjustment knob needs to be turned every time it is used, which makes it difficult to operate with one hand, causing inconvenience to construction workers. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a construction marking device to solve the problems raised in the above background technology.

[0004] A construction marking device comprises a marking barrel, a sliding plate is fixed at the lower end of the marking barrel, a mounting plate is installed at the lower part of the sliding plate, a marking sponge is installed at the lower part of the mounting plate, a protective cover is slidably sleeved on the outside of the sliding plate, a spring 2 is connected between the lower part of the sliding plate and the inner bottom of the protective cover and located on the outside of the mounting plate, a handle is fixed at the upper end of the marking barrel, a pull rod is slidably connected to the inner side of the handle, a vertical piston cavity is provided inside the marking barrel, a vertical piston assembly is installed inside the vertical piston cavity, the upper part of the vertical piston assembly passes through the marking barrel and is connected to the lower part of the pull rod, a horizontal piston cavity is provided inside the sliding plate and communicates with the vertical piston cavity, two groups of horizontal piston assemblies are symmetrically provided on the left and right sides of the horizontal piston cavity, and the horizontal piston assembly is against the inner wall of the protective cover.

[0005] Preferably, the vertical piston assembly includes a vertical piston rod and a vertical piston, the vertical piston is slidably connected inside the vertical piston cavity, the vertical piston rod is fixed to the upper end of the vertical piston, and the upper part of the vertical piston rod passes through the marking barrel and is fixed to the lower part of the pull rod.

[0006] Preferably, a spring 1 is connected between the upper end of the vertical piston and the top end of the vertical piston cavity and located on the outside of the vertical piston rod.

[0007] Preferably, a plurality of air holes are opened on the outer side of the top of the vertical piston cavity, and the vertical piston cavity is connected with the outside through the air holes.

[0008] Preferably, a connecting passage is provided between the vertical piston chamber and the horizontal piston chamber.

[0009] Preferably, the horizontal piston assembly includes a horizontal piston and a horizontal piston rod, the horizontal piston is slidably connected inside the horizontal piston cavity, the horizontal piston rod is fixedly connected to the outer end of the horizontal piston, and the end of the horizontal piston rod is against the inner wall of the protective sleeve.

[0010] The beneficial effects of the utility model are as follows: by holding the handle with one hand, the pull rod can be lifted up, the pull rod drives the vertical piston rod to move, the vertical piston rod drives the vertical piston to slide inside the vertical piston cavity, the vertical piston can draw air into the horizontal piston cavity through the connecting channel, at this time the horizontal piston slides into the horizontal piston cavity, the horizontal piston rod will not resist the inner wall of the protective cover, finally the protective cover can be attached to the column, wall or ground to be marked and the marking barrel can be pressed to make the marking sponge contact with the column, wall or ground, so as to quickly mark the column, wall or ground, which is more convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the overall cross section of the utility model;

[0013] Figure 3 It is a schematic cross-sectional view of the sliding disc of the utility model when viewed from above.

[0014] In the figure: 1-marking barrel, 2-protective cover, 3-handle, 4-pull rod, 5-vertical piston rod, 6-air hole, 7-vertical piston chamber, 8-vertical piston, 9-spring one, 10-horizontal piston chamber, 11-connecting channel, 12-horizontal piston, 13-horizontal piston rod, 14-mounting plate, 15-marking sponge, 16-spring two, 17-sliding plate. DETAILED DESCRIPTION

[0015] See also Figure 1-Figure 3A construction marking device comprises a marking barrel 1, a sliding plate 17 is fixed at the lower end of the marking barrel 1, a mounting plate 14 is installed at the lower part of the sliding plate 17, a marking sponge 15 is installed at the lower part of the mounting plate 14, a protective cover 2 is slidably sleeved on the outside of the sliding plate 17, a spring 16 is connected between the lower part of the sliding plate 17 and the inner bottom of the protective cover 2 and located on the outer side of the mounting plate 14, a handle 3 is fixed at the upper end of the marking barrel 1, a pull rod 4 is slidably connected to the inner side of the handle 3, a vertical piston chamber 7 is provided inside the marking barrel 1, a vertical piston assembly is installed inside the vertical piston chamber 7, and the upper part of the vertical piston assembly passes through the marking barrel 1 and is connected to the lower part of the pull rod 4 The vertical piston assembly includes a vertical piston rod 5 and a vertical piston 8. The vertical piston 8 is slidably connected inside the vertical piston cavity 7. The vertical piston rod 5 is fixed to the upper end of the vertical piston 8. The upper part of the vertical piston rod 5 passes through the marking barrel 1 and is fixed to the lower part of the pull rod 4. A spring 9 is connected between the upper end of the vertical piston 8 and the top of the vertical piston cavity 7 and located on the outside of the vertical piston rod 5. The construction personnel can lift the pull rod 4 by holding the handle 3 with one hand, and the pull rod 4 drives the vertical piston rod 5 to move, so that the vertical piston rod 5 drives the vertical piston 8 to slide inside the vertical piston cavity 7, and the vertical piston 8 will squeeze the spring 9 at the same time;

[0016] A plurality of air holes 6 are opened on the outer side of the top of the vertical piston chamber 7, and the vertical piston chamber 7 is connected to the outside through the air holes 6. When the vertical piston 8 slides upward, the air above the vertical piston chamber 7 can be discharged to the outside through the air holes 6;

[0017] The sliding plate 17 is provided with a horizontal piston chamber 10 in communication with the vertical piston chamber 7. A connecting passage 11 is provided between the vertical piston chamber 7 and the horizontal piston chamber 10. When the vertical piston 8 slides upward, air in the horizontal piston chamber 10 can be drawn through the connecting passage 11.

[0018] Two groups of horizontal piston assemblies are symmetrically arranged on the left and right sides inside the horizontal piston chamber 10, and the horizontal piston assemblies are against the inner wall of the protective sleeve 2. The horizontal piston assembly includes a horizontal piston 12 and a horizontal piston rod 13. The horizontal piston 12 is slidably connected inside the horizontal piston chamber 10, and the horizontal piston rod 13 is fixedly connected to the outer end of the horizontal piston 12. The end of the horizontal piston rod 13 is against the inner wall of the protective sleeve 2. When the air in the horizontal piston chamber 10 is drawn in, the horizontal piston 12 slides into the horizontal piston chamber 10, and the horizontal piston 12 drives the horizontal piston rod 13 to move synchronously, and the horizontal piston rod 13 will not be against the inner wall of the protective sleeve 2. Finally, the protective sleeve 2 can be placed against the column, wall or ground to be marked and the marking barrel 1 can be pressed. At this time, the sliding plate 17 slides in the protective sleeve 2 and squeezes the spring 2 16, and at the same time, the marking sponge 15 is moved out of the protective sleeve 2 and contacts the column, wall or ground, so that the column, wall or ground can be quickly marked, which is more convenient to operate.

Claims

1. A construction marking device, comprising a marking barrel (1), a sliding plate (17) being fixed at the lower end of the marking barrel (1), a mounting plate (14) being mounted at the lower part of the sliding plate (17), a marking sponge (15) being mounted at the lower part of the mounting plate (14), characterized in that: The sliding plate (17) is externally slidably sleeved with a protective sleeve (2); a spring 2 (16) is connected between the lower part of the sliding plate (17) and the inner bottom of the protective sleeve (2) and located on the outer side of the mounting plate (14); a handle (3) is fixed to the upper end of the marking barrel (1); a pull rod (4) is slidably connected to the inner side of the handle (3); a vertical piston chamber (7) is provided inside the marking barrel (1); a vertical piston assembly is installed inside the vertical piston chamber (7); the upper part of the vertical piston assembly passes through the marking barrel (1) and is connected to the lower part of the pull rod (4); a horizontal piston chamber (10) is provided inside the sliding plate (17) and is communicated with the vertical piston chamber (7); two groups of horizontal piston assemblies are symmetrically provided on the left and right sides of the horizontal piston chamber (10); the horizontal piston assembly abuts against the inner wall of the protective sleeve (2).

2. A construction marking device according to claim 1, characterized in that: The vertical piston assembly comprises a vertical piston rod (5) and a vertical piston (8). The vertical piston (8) is slidably connected inside the vertical piston cavity (7). The vertical piston rod (5) is fixed to the upper end of the vertical piston (8). The upper part of the vertical piston rod (5) passes through the marking barrel (1) and is fixed to the lower part of the pull rod (4).

3. A construction marking device according to claim 2, characterized in that: A spring 1 (9) is connected between the upper end of the vertical piston (8) and the top end inside the vertical piston chamber (7) and located outside the vertical piston rod (5).

4. A construction marking device according to claim 3, characterized in that: A plurality of air holes (6) are provided on the outer side of the top of the vertical piston chamber (7), and the vertical piston chamber (7) is communicated with the outside through the air holes (6).

5. A construction marking device according to claim 1, characterized in that: A connecting passage (11) is provided between the vertical piston chamber (7) and the horizontal piston chamber (10).

6. A construction marking device according to claim 1, characterized in that: The horizontal piston assembly comprises a horizontal piston (12) and a horizontal piston rod (13); the horizontal piston (12) is slidably connected inside the horizontal piston chamber (10); the horizontal piston rod (13) is fixedly connected to the outer end of the horizontal piston (12); and the end of the horizontal piston rod (13) abuts against the inner wall of the protective sleeve (2).

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