Engineering site marking device

Abstract

The utility model provides an engineering field marking device which comprises a hollow pipe, the lower end of the hollow pipe is fixedly connected with a pointed end, the hollow pipe is sleeved with a rubber sleeve fixedly connected with the hollow pipe, the upper end of the hollow pipe is provided with a detachable top cover, and the middle position of the upper surface of the top cover is fixedly connected with a straight cylinder. A disc is fixedly connected to the middle position in the straight barrel, a threaded hole is formed in the middle position of one face of the disc, a screw is in threaded connection with the interior of the threaded hole, one end of the screw extends into the hollow pipe and is fixedly connected with a piston, the piston is slidably installed in the hollow pipe, and a vent hole is formed in the outer surface of the lower end of the hollow pipe. The upper end of the threaded rod extends to the upper side of the straight cylinder and is provided with a handle, a baffle ring is arranged on the upper side of the disc, the threaded rod is sleeved with the baffle ring, the baffle ring is fixedly connected with the baffle ring, and the baffle ring is installed in the straight cylinder in a sliding mode.

Description

Technical Field

[0001] The utility model relates to a project site marking device, belonging to the field of construction engineering. Background Art

[0002] During the early construction at the construction site, it is necessary to provide marks of the target location and directional information. Usually, a marker rod is inserted at a suitable position on the ground, and then multiple marker rods are connected with ropes. Then lime powder is sprinkled along the line of the rope to provide a guide line for excavating the foundation. After the marker rod is inserted into the soil, the outer diameter of the marker rod cannot be reduced. When pulling out the marker rod, the resistance to pulling out the marker rod is large because the contact range between the marker rod and the hole wall in the soil is large, which increases the labor intensity of workers pulling out the marker rod. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a construction site marking device to solve the problems raised in the above-mentioned background technology. The utility model reduces the resistance of the marking structure to be pulled out from the soil.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a construction site marking device, comprising a hollow tube, a pointed head is connected and fixed at the lower end of the hollow tube, a rubber sleeve connected and fixed to the hollow tube is sleeved on the hollow tube, a gap exists between the rubber sleeve and the hollow tube, a detachable top cover is installed at the upper end of the hollow tube, a straight cylinder is connected and fixed at the middle position of the upper surface of the top cover, a disc is connected and fixed at the middle position in the straight tube, a threaded hole is opened at the middle position of one side of the disc, a screw is threadedly connected to the threaded hole, one end of the screw extends into the hollow tube and is connected and fixed with a piston, the piston is slidably installed in the hollow tube, a vent is opened on the outer surface of the lower end of the hollow tube, the upper end of the screw extends to the upper side of the straight tube and is installed with a handle, a retaining ring is provided on the upper side of the disc, the retaining ring is sleeved on the screw and connected and fixed with the screw, the retaining ring is slidably installed in the straight tube, and a detachable knocking piece is installed at the upper end of the hollow tube.

[0005] Furthermore, the knocking piece includes a ring, the upper end of the hollow tube is sleeved with a ring connected and fixed to the hollow tube, two support arms are symmetrically fixed on the annular side of the ring, and a through hole is opened on the upper surface of the support arm away from the ring, and a knocking plate arranged concentrically with the screw is provided directly above the screw rod, and two column rods are symmetrically installed on the lower surface of the knocking plate, the lower end of the column rod passes through the through hole, and a limiting ring is provided on the upper side of the through hole, the limiting ring is sleeved on the column rod and connected and fixed to the column rod, and the outer diameter of the limiting ring is larger than the inner diameter of the through hole.

[0006] Furthermore, a connecting ring fixedly connected to the hollow tube is sleeved at the lower end of the hollow tube, the outer diameter of the connecting ring is the same as the maximum diameter of the pointed head, the connecting ring is adhered to the rubber sleeve, and the rubber sleeve is adhered to the ring.

[0007] Furthermore, the top cover upper surface is provided with a plurality of small holes equidistantly in a ring shape, the ring upper surface is provided with a plurality of screw holes equidistantly in a ring shape aligned with the small holes, connecting screws are inserted in the small holes, and the lower ends of the connecting screws are threadedly connected in the screw holes.

[0008] Furthermore, two threaded blind holes are symmetrically provided on the lower surface of the knocked plate, and the outer surface of the upper end of the column rod is processed with external threads, and one end of the column rod processed with external threads is threadedly connected in the threaded blind hole.

[0009] Furthermore, an annular groove for limiting the position of the rope is processed on the outer surface of the straight tube, and the annular groove is arranged on a side of the straight tube away from the top cover.

[0010] Furthermore, a through hole is provided in the middle of the upper surface of the top cover, and the lower end of the straight tube is connected and fixed in the through hole.

[0011] Beneficial effects of the utility model:

[0012] 1. Insert two poles into two through-holes respectively until the limit ring contacts the support arm, and the assembly of the knocked plate and the hollow tube is completed. The hammer strikes the knocked plate, and the knocking force on the knocked plate is transferred to the hollow tube, so that the lower end of the hollow tube is inserted into the soil. After the hollow tube is inserted into the soil, the pole is pulled out from the through-hole to separate the knocked plate, thereby realizing the reuse of the knocked plate.

[0013] 2. When the structure formed by the hollow tube and the rubber sleeve needs to be pulled out of the soil, first use the handle to rotate the screw so that the screw drives the piston to move upward in the hollow tube, so that the air in the space formed by the hollow tube and the rubber sleeve enters the hollow tube through the vent hole. At this time, the volume of the rubber sleeve shrinks, so that the rubber sleeve is separated from the hole wall in the soil, which reduces the contact area between the rubber sleeve and the hole wall in the soil, thereby reducing the resistance to pulling the structure formed by the hollow tube and the rubber sleeve out of the soil.

[0014] 3. The threaded connection between the screw and the disc is hidden in the closed space formed by the straight tube, the retaining ring and the hollow tube to prevent fine dust and other debris from entering the threaded hole at will to affect the rotation of the screw, thereby achieving the purpose of hiding the threaded connection between the screw and the threaded hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 This is a structural schematic diagram of a construction site marking device of the utility model;

[0017] Figure 2 It is a schematic diagram of the assembly of a screw rod, a straight cylinder, a top cover, a rubber sleeve and a hollow tube in a construction site marking device of the utility model;

[0018] Figure 3 It is a schematic diagram of the assembly of a ring and a hollow tube in a construction site marking device of the utility model;

[0019] Figure 4 It is a three-dimensional diagram of a disc in a construction site marking device of the utility model;

[0020] Figure 5 It is a three-dimensional diagram of a top cover in a construction site marking device of the utility model;

[0021] Figure 6 It is a three-dimensional diagram of a retaining ring in a construction site marking device of the utility model;

[0022] Figure 7 It is a three-dimensional diagram of a straight cylinder in a construction site marking device of the utility model;

[0023] In the figure: 1-rubber sleeve, 2-perforation, 3-limiting ring, 4-column, 5-knock plate, 6-screw, 7-handle, 8-straight cylinder, 9-top cover, 10-support arm, 11-ring, 12-pointed head, 13-connecting ring, 14-blocking ring, 15-disc, 16-piston, 17-hollow tube, 18-vent, 19-threaded hole, 20-through hole, 21-annular groove. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1 and Figure 2 The utility model provides a technical solution: a construction site marking device, including a hollow tube 17, by connecting a fixed tip 12 at the lower end of the hollow tube 17, it is helpful to reduce the resistance of the hollow tube 17 when inserted into the soil.

[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 5The hollow tube 17 is sleeved with a rubber sleeve 1 connected and fixed to the hollow tube 17, and there is a gap between the rubber sleeve 1 and the hollow tube 17. A detachable top cover 9 is installed on the upper end of the hollow tube 17, and a ring 11 is sleeved on the upper end of the hollow tube 17 and connected and fixed to the hollow tube 17. A plurality of small holes are equidistantly provided on the upper surface of the top cover 9 in an annular shape, and a plurality of screw holes aligned with the small holes are equidistantly provided on the upper surface of the ring 11 in an annular shape, and connecting screws are inserted in the small holes so that the lower ends of the connecting screws are threadedly connected in the screw holes to complete the connection between the top cover 9 and the ring 11, that is, to realize the assembly of the top cover 9 and the hollow tube 17, and a connecting ring 13 connected and fixed to the hollow tube 17 is provided on the lower end of the hollow tube 17, and the outer diameter of the connecting ring 13 is the same as the maximum diameter of the pointed head 12, the connecting ring 13 is adhered to the rubber sleeve 1, and the rubber sleeve 1 is adhered to the ring 11, and the connecting ring 13 and the ring 11 play the role of supporting the rubber sleeve 1, thereby improving the stability of the installation of the rubber sleeve 1.

[0027] See also Figure 1-Figure 5 A straight tube 8 is connected and fixed in a through hole 20 opened in the middle of the upper surface of the top cover 9, a disc 15 is connected and fixed in the middle of the straight tube 8, a threaded hole 19 is opened in the middle of one side of the disc 15, a screw 6 is threadedly connected in the threaded hole 19, one end of the screw 6 extends into the hollow tube 17 and is connected and fixed with a piston 16, the piston 16 is slidably installed in the hollow tube 17, a vent hole 18 is opened on the outer surface of the lower end of the hollow tube 17, the upper end of the screw 6 extends to the upper side of the straight tube 8 and is installed with a handle 7, and the hollow tube 1 needs to be opened. When the structure formed by the hollow tube 17 and the rubber sleeve 1 is pulled out from the soil, the screw 6 is first rotated by the handle 7 so that the screw 6 drives the piston 16 to move upward in the hollow tube 17, so that the air in the space formed by the hollow tube 17 and the rubber sleeve 1 enters the hollow tube 17 through the vent 18. At this time, the volume of the rubber sleeve 1 shrinks, so that the rubber sleeve 1 is separated from the hole wall in the soil, which reduces the contact area between the rubber sleeve 1 and the hole wall in the soil, thereby reducing the resistance to pulling the structure formed by the hollow tube 17 and the rubber sleeve 1 out of the soil.

[0028] See also Figure 1-Figure 7 A retaining ring 14 is provided on the upper side of the disc 15, and the retaining ring 14 is sleeved on the screw 6 and fixedly connected to the screw 6. The retaining ring 14 is slidably installed in the straight tube 8, so that the threaded connection part between the screw 6 and the disc 15 is hidden in the closed space formed by the straight tube 8, the retaining ring 14 and the hollow tube 17, preventing fine dust and other debris from entering the threaded hole 19 at will to affect the rotation of the screw 6, thereby achieving the purpose of hiding the threaded connection part between the screw 6 and the threaded hole 19.

[0029] See also Figure 1 and Figure 3Two arms 10 are symmetrically fixed on the annular side of the ring 11, and a through hole 2 is provided on the upper surface of the arm 10 away from the ring 11. A knocking plate 5 is arranged concentrically with the screw 6 just above the screw 6. Two pillars 4 are symmetrically installed on the lower surface of the knocking plate 5, wherein two threaded blind holes are symmetrically provided on the lower surface of the knocking plate 5. The outer surface of the upper end of the pillar 4 is processed with an external thread, so that one end of the pillar 4 processed with the external thread is threadedly connected in the threaded blind hole, which is convenient for the disassembly and assembly of the pillar 4 and the knocking plate 5. The lower end of the pillar 4 passes through the through hole 2, and a limit ring is provided on the upper side of the through hole 2 3. The limiting ring 3 is sleeved on the column rod 4 and connected and fixed with the column rod 4. The outer diameter of the limiting ring 3 is larger than the inner diameter of the through hole 2. The two column rods 4 are respectively inserted into the two through holes 2 until the limiting ring 3 contacts the support arm 10. The assembly of the knocked plate 5 and the hollow tube 17 is completed, and the hammer strikes the knocked plate 5, and then the knocking force on the knocked plate 5 is transferred to the hollow tube 17, so that the lower end of the hollow tube 17 is inserted into the soil. After the hollow tube 17 is inserted into the soil, the column rod 4 is pulled out from the through hole 2 to separate the knocked plate 5, thereby realizing the reuse of the knocked plate 5.

[0030] See also Figure 1 and Figure 7 The outer surface of the straight tube 8 is processed with an annular groove 21 for limiting the position of the rope. The annular groove 21 is set on the side of the straight tube 8 away from the top cover 9. The rope is wrapped in the annular groove 21 to limit the position of the rope.

[0031] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A construction site marking device, comprising a hollow tube (17), characterized in that: The lower end of the hollow tube (17) is connected and fixed with a pointed head (12); a rubber sleeve (1) connected and fixed to the hollow tube (17) is sleeved on the hollow tube (17); a gap exists between the rubber sleeve (1) and the hollow tube (17); a detachable top cover (9) is installed on the upper end of the hollow tube (17); a straight tube (8) is connected and fixed to the middle position of the upper surface of the top cover (9); a disc (15) is connected and fixed to the middle position of the straight tube (8); a threaded hole (19) is opened at the middle position of one side of the disc (15); a screw rod (6) is connected to the inner thread of the threaded hole (19); One end of the screw rod (6) extends into the hollow tube (17) and is connected and fixed with a piston (16), the piston (16) is slidably mounted in the hollow tube (17), a vent hole (18) is provided on the outer surface of the lower end of the hollow tube (17), the upper end of the screw rod (6) extends to the upper side of the straight tube (8) and is installed with a handle (7), the upper side of the disc (15) is provided with a retaining ring (14), the retaining ring (14) is sleeved on the screw rod (6) and is connected and fixed with the screw rod (6), the retaining ring (14) is slidably mounted in the straight tube (8), and a detachable knocking piece is installed at the upper end of the hollow tube (17).

2. A construction site marking device according to claim 1, characterized in that: The knocking member comprises a ring (11), the upper end of the hollow tube (17) is sleeved with a ring (11) connected and fixed to the hollow tube (17), two arms (10) are symmetrically fixed on the annular side surface of the ring (11), a through hole (2) is opened on the upper surface of the arm (10) away from the ring (11), a knocking plate (5) arranged concentrically with the screw (6) is provided directly above the screw rod (6), two columns (4) are symmetrically installed on the lower surface of the knocking plate (5), the lower end of the column rod (4) passes through the through hole (2), a limiting ring (3) is provided on the upper side of the through hole (2), the limiting ring (3) is sleeved on the column rod (4) and is connected and fixed to the column rod (4), and the outer diameter of the limiting ring (3) is larger than the inner diameter of the through hole (2).

3. A construction site marking device according to claim 2, characterized in that: The lower end of the hollow tube (17) is sleeved with a connecting ring (13) connected and fixed to the hollow tube (17); the outer diameter of the connecting ring (13) is the same as the maximum diameter of the pointed head (12); the connecting ring (13) is adhered to the rubber sleeve (1), and the rubber sleeve (1) is adhered to the ring (11).

4. A construction site marking device according to claim 2, characterized in that: The top cover (9) has a plurality of small holes equidistantly formed in a circular shape on its upper surface, and the ring (11) has a plurality of screw holes equidistantly formed in a circular shape on its upper surface that are aligned with the small holes. Connecting screws are inserted into the small holes, and the lower ends of the connecting screws are threadedly connected in the screw holes.

5. A construction site marking device according to claim 2, characterized in that: The knocking plate (5) has two symmetrical threaded blind holes on its lower surface, and the upper outer surface of the column rod (4) is processed with external threads. One end of the column rod (4) with the external threads is threadedly connected in the threaded blind hole.

6. A construction site marking device according to claim 1, characterized in that: An annular groove (21) for limiting the position of the rope is processed on the outer surface of the straight tube (8), and the annular groove (21) is arranged on a side of the straight tube (8) away from the top cover (9).

7. A construction site marking device according to claim 1, characterized in that: A through hole (20) is provided in the middle of the upper surface of the top cover (9), and the lower end of the straight cylinder (8) is connected and fixed in the through hole (20).

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