Concrete floor thickness detection device for house building construction

Abstract

The utility model belongs to the field of measuring tools for building engineering, and particularly relates to a concrete floor thickness detection device for house building construction. Comprising an inserting rod, the lower end of the inserting rod is connected with a baffle which can be unfolded and folded relative to the width direction of the inserting rod, the lower end of the baffle is hinged to the inserting rod, the inserting rod is hollow, a branch pull rope connected with the baffle is connected with a main pull rope in the inserting rod, and the main pull rope penetrates out of the inserting rod from the upper portion. The main pull rope is sleeved with a check ring, the check ring is stopped at the top end of the insertion rod when the baffle is unfolded to be perpendicular to the insertion rod, the main pull rope and the branch pull ropes are non-elastic ropes, length scale marks are arranged on the insertion rod in the length direction, and the insertion rod is sleeved with a sliding block capable of sliding in the length direction of the insertion rod. A pointer for indicating the reading of the length scale line is arranged on the sliding block; the storable baffle plate is additionally arranged at the bottom of the insertion rod, so that measurement can be completed by only one person above the measured floor, and the use is more convenient.

Description

Technical Field

[0001] The utility model belongs to the field of measuring tools for construction engineering, and specifically relates to a concrete floor thickness detection device for building construction. Background Art

[0002] Before the acceptance of the main concrete structure or before the delivery of the newly built house to the user, in order to detect whether the thickness of the concrete floor meets the design requirements, two detection methods are generally adopted. One method is to use a special electronic measuring instrument to perform non-destructive testing on the surface of the concrete floor. Although this instrument can detect the thickness of the floor, it is expensive and not suitable for ordinary house users; the other method is to drill holes in the concrete floor. During measurement, one person uses a template to hold the hole under the floor, and the other person inserts a short steel bar into the hole above the floor so that the lower end of the steel bar reaches the template surface under the floor, and then draws a line on the steel bar close to the upper surface of the floor, and finally takes out the steel bar, and uses a tape measure to measure the length from this line to the lower end of the steel bar. This length is the thickness of the floor. This method requires two people to work closely together, which brings great inconvenience to the floor measurement work and is inefficient. Utility Model Content

[0003] The utility model aims to solve the problem that it is costly to purchase electronic measuring instruments to measure the thickness of concrete floor slabs, and that the method of drilling holes on the floor slabs and inserting steel bars for measurement requires cooperation of two persons upstairs and downstairs, which is inconvenient and inefficient.

[0004] The utility model provides the following technical scheme: a device for detecting the thickness of concrete floor slabs used in building construction, comprising an insertion rod, the lower end of the insertion rod is connected with a baffle which can be expanded and retracted relative to the width direction thereof, the lower end of the baffle is hinged to the insertion rod, the interior of the insertion rod is hollow, a branch pull rope connected to the baffle is connected to a main pull rope in the insertion rod, the main pull rope passes through the outside of the insertion rod from above, and when the main pull rope is pulled upward, the branch pull rope drives the baffle to be retracted, a retaining ring is sleeved on the main pull rope, and when the baffle is expanded to be perpendicular to the insertion rod, the retaining ring stops at the top of the insertion rod, the main pull rope and the branch pull rope are both inelastic ropes, the insertion rod is provided with length scale lines in its length direction, the insertion rod is sleeved with a slider which can slide in its length direction, and the slider is provided with a pointer for indicating the reading of the length scale lines.

[0005] Furthermore, a storage groove is provided on the insertion rod, and constraint frames are connected to both sides of the storage groove. The lower end of the baffle is connected to the constraint frames on both sides of the storage groove through a rotating shaft. When the main pull rope is pulled upward, the baffle is stored in the storage groove in an outwardly inclined posture.

[0006] Furthermore, the insertion rod is provided with a guide rail which protrudes relative to the width direction thereof and is parallel to the length direction thereof, the length scale line is located on the guide rail, and the sliding block is provided with a guide groove which is adapted to the guide rail.

[0007] Furthermore, a fastening screw is threadedly connected to the slider, and the hole on the slider connected to the fastening screw is a through hole pointing to the insertion rod. When the fastening screw is screwed in or out, it abuts against or separates from the insertion rod.

[0008] Furthermore, a pull ring is connected to the top of the main pull rope.

[0009] Furthermore, the baffles on the insertion rod are evenly distributed around the insertion rod.

[0010] Furthermore, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring pushes the baffle, and the other end uses the insertion rod as a reaction force support, and the torsion spring pushes the baffle to maintain a tendency to expand outward.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] The utility model provides a device for detecting the thickness of concrete floor slabs for building construction. A retractable baffle is added to the bottom of an insertion rod. Only one person is required to complete the measurement above the measured floor slab, which is more convenient to use. A pointer on the insertion rod for indicating the reading of the length scale line can be fixed at a corresponding reading position. After measuring the thickness of the floor slab, the reading on the insertion rod can be retained, and the reading can be read after the detection device is lifted from the floor slab, thereby avoiding the problem of inconvenience of lying on the ground for observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a concrete floor thickness detection device for building construction;

[0014] Figure 2 for Figure 1 Front view of .

[0015] In the figure: 1-insertion rod; 2-restraint frame; 3-branch pull rope; 4-guide rail; 5-baffle; 6-slider; 7-fastening screw; 8-retaining ring; 9-main pull rope; 10-pull ring; 11-pointer; 12-storage slot. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] like Figure 1 , Figure 2As shown: a concrete floor thickness detection device for building construction, including a plug rod 1, the lower end of the plug rod 1 is connected to a baffle 5 that can be expanded and retracted relative to its width direction, the lower end of the baffle 5 is hinged to the plug rod 1, the plug rod 1 is hollow, the branch pull rope 3 connected to the baffle 5 is connected to the main pull rope 9 in the plug rod 1, the main pull rope 9 passes through the plug rod 1 from above, and when the main pull rope 9 is pulled upward, the branch pull rope 3 drives the baffle 5 to be retracted, and a retaining ring 8 is sleeved on the main pull rope 9. When the baffle 5 is expanded to be perpendicular to the plug rod 1, the retaining ring 8 stops at the top of the plug rod 1, and the retaining ring 8 restricts the main pull rope 9 from continuing to move downward, and the baffle 5 maintains a posture perpendicular to the plug rod 1. The main pull rope 9 and the branch pull rope 3 are both inelastic ropes, and the plug rod 1 is provided with a length scale line in its length direction, and the plug rod 1 is provided with a slider 6 that can slide in its length direction, and the slider 6 is provided with a pointer 11 for indicating the reading of the length scale line.

[0018] A storage groove 12 is provided on the insertion rod 1, and restraint frames 2 are connected to both sides of the storage groove 12. The lower end of the baffle 5 is connected to the restraint frames 2 on both sides of the storage groove 12 through a rotating shaft. When the main pull rope 9 is pulled upward, the baffle 5 is received in the storage groove 12 in an outwardly inclined posture. After the main pull rope 9 unloads the force, the outwardly inclined baffle 5 unfolds accordingly.

[0019] The baffles 5 on the insertion rod 1 are evenly distributed around the insertion rod 1 . In this embodiment, there are two baffles 5 on the insertion rod 1 .

[0020] A pull ring 10 is connected to the top of the main pull rope 9, and the main pull rope 9 is lifted by the pull ring 10.

[0021] After drilling a hole on the floor, first lift the main pull rope 9, and the two baffles 5 rotate around the rotating shaft and flip upward, and the baffles 5 are retracted into the storage groove 12. In this state, the total width of the insertion rod 1 plus the baffle 5 is smaller than the aperture of the drilled hole on the floor, and the baffle 5 can pass through the drilled hole on the floor. The insertion rod 1 is inserted into the drilled hole. After the baffle 5 passes through the drilled hole on the floor, the main pull rope 9 is released, and the baffle 5 is unfolded. In this state, lift the insertion rod 1 until the baffle 5 stops at the bottom surface of the floor, and then slide the slider 6 until it is flush with the top surface of the floor. At this time, the reading pointed to by the pointer 11 on the slider 6 is the thickness of the floor.

[0022] The insertion rod 1 is provided with a guide rail 4 which protrudes relative to its width direction and is parallel to its length direction. The length scale line is located on the guide rail 4. The slider 6 is provided with a guide groove which is adapted to the guide rail 4. The guide groove on the slider 6 cooperates with the guide rail 4 to limit the relative rotation of the two, so that the pointer 11 is always aligned with the length scale line on the insertion rod 1.

[0023] A top plate is provided on the top of the insertion rod 1 , the width of the top plate is greater than the width of the sliding block 6 , and the top plate limits the sliding block 6 from escaping from the top of the insertion rod 1 .

[0024] A fastening screw 7 is threadedly connected to the slider 6. The hole on the slider 6 for connecting the fastening screw 7 is a through hole pointing to the insertion rod 1. The fastening screw 7 abuts against or separates from the insertion rod 1 when being screwed in or out. When the fastening screw 7 is screwed in, the end of the fastening screw 7 abuts against the insertion rod 1 to limit the sliding of the slider 6. The slider 6 can be fixed at the corresponding reading on the insertion rod 1.

[0025] A torsion spring is sleeved on the rotating shaft, one end of the torsion spring pushes the baffle plate 5, and the other end uses the insertion rod 1 as a reaction force support, so that the torsion spring pushes the baffle plate 5 to maintain the trend of expanding outwards.

[0026] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for detecting the thickness of concrete floor slabs for building construction, characterized in that: The utility model comprises an insertion rod (1), the lower end of which is connected with a baffle (5) which can be expanded and retracted relative to the width direction thereof, the lower end of the baffle (5) is hinged to the insertion rod (1), the interior of the insertion rod (1) is hollow, a branch pull rope (3) connected to the baffle (5) is connected to a main pull rope (9) in the insertion rod (1), the main pull rope (9) passes through the outside of the insertion rod (1) from the top, and when the main pull rope (9) is pulled upward, the branch pull rope (3) drives the baffle (5) to be retracted, and the main pull rope (9) is pulled upward. A retaining ring (8) is sleeved on the pull rope (9), and when the baffle plate (5) is unfolded to be perpendicular to the insertion rod (1), the retaining ring (8) stops at the top of the insertion rod (1). Both the main pull rope (9) and the branch pull rope (3) are ropes without elasticity. The insertion rod (1) is provided with length scale lines in its length direction. The insertion rod (1) is sleeved with a slider (6) that can slide in its length direction, and the slider (6) is provided with a pointer (11) for indicating the reading of the length scale lines.

2. A device for detecting the thickness of concrete floor slabs for building construction according to claim 1, characterized in that: The insertion rod (1) is provided with a storage groove (12), and the two sides of the storage groove (12) are connected with a restraining frame (2). The lower end of the baffle (5) is connected to the restraining frame (2) on both sides of the storage groove (12) through a rotating shaft. When the main pull rope (9) is pulled upward, the baffle (5) is stored in the storage groove (12) in an outwardly inclined posture.

3. A device for detecting the thickness of concrete floor slabs for building construction according to claim 2, characterized in that: The insertion rod (1) is provided with a guide rail (4) protruding relative to its width direction and parallel to its length direction, the length scale line is located on the guide rail (4), and the slider (6) is provided with a guide groove adapted to the guide rail (4).

4. A device for detecting the thickness of concrete floor slabs for building construction according to claim 3, characterized in that: The slider (6) is threadedly connected with a fastening screw (7); the hole on the slider (6) connected with the fastening screw (7) is a through hole pointing to the insertion rod (1); the fastening screw (7) abuts against or separates from the insertion rod (1) when being screwed in or out.

5. The device for detecting the thickness of concrete floor slabs for building construction according to claim 1, characterized in that: The top of the main pull rope (9) is connected with a pull ring (10).

6. A device for detecting the thickness of concrete floor slabs for building construction according to claim 1, characterized in that: The baffles (5) on the insertion rod (1) are evenly distributed around the insertion rod (1).

7. A device for detecting the thickness of concrete floor slabs for building construction according to claim 2, characterized in that: A torsion spring is sleeved on the rotating shaft, one end of the torsion spring pushes the baffle plate (5), and the other end uses the insertion rod (1) as a reaction force support, and the torsion spring pushes the baffle plate (5) to maintain a tendency to expand outwards.

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