Reinforcing steel bar protection device during concrete pouring

Abstract

The utility model relates to a reinforcing steel bar protection device during concrete pouring, which comprises two semicircular pipes which can be buckled with each other, one ends of the two semicircular pipes are connected through a hinge shaft, one end, far away from the hinge shaft, of each semicircular pipe is provided with a buckling piece, and the inner side wall of one semicircular pipe is provided with a strip-shaped groove along the vertical direction; a clamping device is further included, the clamping device comprises a sliding rod and a fixed rod which are both horizontally arranged in the strip-shaped groove, and the clamping device further comprises a vertically-arranged clamping plate; the fixed rod is located below the sliding rod and fixedly connected with the inner wall of the strip-shaped groove, the sliding rod can move along the strip-shaped groove, and the section of the strip-shaped groove is in an inverted T shape; a second movable rod is pivoted on the fixed rod, and a first movable rod is pivoted on the sliding rod; the free ends of the two movable rods are rotationally connected with the clamping plate; and after the sliding rod moves, position locking is carried out through the locking device. By adjusting the clamping plates, the two semicircular pipes can be buckled and then fixed to reinforcing steel bars of various sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a steel bar protection device during concrete pouring. Background Art

[0002] During the concrete construction of foundation and frame columns, in order to ensure that the reserved column sections and slab wall dowels are protected from concrete contamination, the exposed dowels are covered with plastic sheeting or plastic film before pouring concrete, and the plastic sheeting or plastic film is removed after the concrete pouring is completed.

[0003] Covering with plastic film is not only difficult to construct, but also the film cannot be reused.

[0004] The above problem is mentioned in the new patent with patent number CN220353219U. The solution of the prior art is to use two semicircular PVC tubes, buckle the two semicircular PVC tubes on the reserved section of the steel bar, and then fix the semicircular PVC tubes to cover the outer surface of the reserved section of the steel bar. However, the device provided by the prior art can only cover steel bars of corresponding sizes. If the diameter of the steel bar changes, it is necessary to replace PVC tubes of different sizes, and the practicality needs to be improved.

[0005] Moreover, the hinged plate of the handle disposed outside the PVC tube is exposed, and if the device is collided during transportation, it is more likely to be damaged. Utility Model Content

[0006] In order to solve the problems existing in the above-mentioned technology, the utility model provides a steel bar protection device during concrete pouring, comprising two semicircular tubes that can be buckled with each other, one end of the two semicircular tubes is connected by a hinge shaft, and a buckle is provided at one end of the semicircular tube away from the hinge shaft, and a strip groove is provided on the inner side wall of one of the semicircular tubes along the vertical direction;

[0007] It also includes a clamping device, the clamping device includes a sliding rod and a fixing rod both horizontally arranged in the strip-shaped groove, and the clamping device also includes a clamping plate vertically arranged;

[0008] The fixed rod is located below the sliding rod, the fixed rod is fixedly connected to the inner wall of the strip groove, the sliding rod can move along the strip groove, and the cross section of the strip groove is an inverted T shape;

[0009] The fixed rod is pivotally connected to the second movable rod, and the sliding rod is pivotally connected to the first movable rod;

[0010] The free ends of the two movable rods are rotatably connected to the clamping plate;

[0011] After the sliding rod moves, the position is locked by a locking device.

[0012] Wherein, the locking device comprises two rows of teeth extending vertically and arranged on the bottom surface of the strip groove, and the two rows of teeth are respectively located on both sides of the first movable rod;

[0013] The cross section of the teeth of the row of teeth is a right-angled triangle structure, a right-angled surface of the teeth is connected to the bottom surface of the strip groove, and the inclined surface of the teeth is located above another right-angled surface of the teeth.

[0014] Wherein, the middle portion of the first movable rod is pivotally connected to the adjusting rod.

[0015] Wherein, a vertically extending strip hole is arranged on the clamping plate, and the free ends of the two movable rods are pivotally connected in the strip hole.

[0016] Wherein, a rubber pad is arranged on a side of the clamping plate away from the strip groove.

[0017] Wherein, the fastening parts are two door-shaped pin rods;

[0018] The top surface and the bottom surface of the semicircular tube are both provided with pin holes.

[0019] Wherein, a magnetic attraction piece is arranged on the bottom surface of the pin hole, and the magnetic attraction piece can be magnetically attracted to the two ends of the door-shaped pin rod.

[0020] The beneficial effects of the utility model are as follows: the present application can fasten two semicircular tubes and fix them on steel bars of various sizes by adjusting the clamping plate, which has better practicality than the prior art;

[0021] After buckling and storing, all parts except the hinge shaft are stored inside to avoid collision damage to these parts during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is the front view of the utility model;

[0024] Figure 2 It is a schematic diagram of the clamping device of the utility model;

[0025] Figure 3 It is an internal view of the strip groove of the utility model;

[0026] Figure 4 This utility model Figure 3 Side view of

[0027] Figure 5 It is a schematic diagram of the matching state of the utility model and the reserved section of the steel bar;

[0028] Figure 6 It is a schematic diagram of the operation of the utility model;

[0029] Figure 7 It is an internal schematic diagram of the utility model after being stored.

[0030] Description of Reference Numerals

[0031] 1. semicircular tube, 11. hinge axis, 12. pin hole, 13. strip groove, 131. tooth, 1311. inclined plane, 2. clamping device, 21. clamping plate, 211. strip hole, 22. sliding rod, 221. first movable rod, 23. fixed rod, 231. second movable rod, 3. adjusting rod, 4. gate-shaped pin rod, 5. steel bar. DETAILED DESCRIPTION

[0032] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] like Figures 1 to 4 As shown, a steel bar protection device for concrete pouring provided by an embodiment includes two semicircular tubes 1 that can be buckled with each other, one end of the two semicircular tubes 1 is connected by a hinge shaft 11, and a buckle is provided at one end of the semicircular tube 1 away from the hinge shaft 11, and a strip groove 13 is provided on the inner side wall of one of the semicircular tubes 1 in the vertical direction, and the cross section of the strip groove 13 is an inverted T shape;

[0034] The clamping device 2 includes a sliding rod 22 and a fixing rod 23 both horizontally arranged in the strip groove 13, and the clamping device 2 also includes a vertically arranged clamping plate 21, which can be an arc plate or a flat plate, and its convex surface faces the strip groove 13;

[0035] The fixed rod 23 is located below the sliding rod 22. The fixed rod 23 is fixedly connected to the inner wall of the strip groove 13. The sliding rod 22 can slide vertically along the strip groove 13.

[0036] The fixed rod 23 is pivotally connected to the second movable rod 231 , and the sliding rod 22 is pivotally connected to the first movable rod 221 ;

[0037] The free ends of the two movable rods are rotatably connected to the clamping plate 21. Specifically, a vertically extending strip hole 211 is provided on the clamping plate 21, and the free ends of the two movable rods are pivotally connected to a cross bar (not shown) in the strip hole 211;

[0038] After the sliding rod 22 moves vertically, the position is locked by the locking device.

[0039] The locking device includes two rows of teeth extending vertically and arranged on the bottom surface of the strip groove 13, and the two rows of teeth are respectively located on both sides of the first movable rod 221;

[0040] The cross section of the tooth 131 of the tooth row is a right triangle structure, and in one embodiment is an isosceles right triangle structure. A right angle surface of the tooth 131 is connected to the bottom surface of the strip groove 13 , and the inclined surface 1311 of the tooth 131 is located above another right angle surface of the tooth 131 .

[0041] Furthermore, the middle portion of the first movable rod 221 is pivotally connected to the adjusting rod 3 .

[0042] Furthermore, a rubber pad is provided on a side of the clamping plate 21 away from the strip groove 13 to increase friction.

[0043] Furthermore, the fastening parts are two door-shaped pin rods 4, and pin holes 12 are set on the top and bottom surfaces of the semicircular tube 1. The pin hole 12 is located close to the end of the semicircular tube 1 away from the hinge axis 11, and a magnetic attraction part is set on the inner bottom surface of the pin hole 12, which can be magnetically attracted to the two ends of the door-shaped pin rod 4.

[0044] When in use, the two semicircular tubes 1 are buckled and sleeved on the outside of the reserved section of the steel bar 5, and the two door-shaped pin rods 4 are respectively inserted into the corresponding pin holes 12, and the door-shaped pin rods 4 are fixed by magnetic attraction to complete the combination of the two semicircular tubes 1, forming a Figure 5 The status shown;

[0045] Then, by pressing down the adjusting rod 3, the first movable rod 221 and the sliding rod 22 are driven to move downward. During the downward movement of the sliding rod 22, due to the setting of the inclined surface 1311 of the tooth 131, the sliding rod 22 can pass over the top of the plurality of teeth 131. At the same time, during this process, the two movable rods move the clamping plate 21 toward the steel bar 5 until the clamping plate 21 and the steel bar 5 are in contact with each other. Figure 5 The semicircular tube 1 on the left side of the middle clamps the steel bar 5. At this time, since a right-angled surface of the tooth 131 is at the bottom, after the adjustment rod 3 is loosened, the two ends of the sliding rod 22 will be respectively stuck under the right-angled surface of one of the teeth 131 of the two rows of teeth, thereby completing the fixing of the clamping plate 21;

[0046] When disassembly is required, remove the door-shaped pin rod 4, open the two semicircular tubes 1, hold Figure 6 Near the A portion of the first movable rod 221, a force is applied in the axial direction of the semicircular tube 1 to pull the sliding rod 22 out of the gap between the adjacent teeth 131, and then the first movable rod 221 is controlled to drive the sliding rod 22 to move upward to the highest point, so that the reserved section of the next steel bar 5 can be covered and fixed.

[0047] If the device needs to be stored instead of covering and fixing the next steel bar 5, the adjusting rod 3 is turned downward, and the two semicircular tubes 1 are fastened together and fixed by the door-shaped pin rod 4 to form a Figure 7 In the state shown, the left side of the adjusting rod 3 abuts against the inner wall of the semicircular tube 1 on the left side, so that the sliding rod 22 is fixed at the top of the strip groove 13, which is convenient for next use;

[0048] In addition, after the device is buckled and stored, all components except the hinge shaft 11 can be stored inside, which can avoid collision damage to these components during transportation.

[0049] In one embodiment, a horizontal plate can be provided in the strip groove 13, and the horizontal plate is located below the row of teeth to prevent the sliding rod 22 from passing through and avoiding it from slipping out of the range of the row of teeth. The row of teeth extends from the top to the middle of the strip groove 13.

[0050] It should be noted that the channel thickness of the strip groove 13 for the sliding rod 22 to slide should be greater than or equal to the sum of the thickness of the tooth 131 and the cross-sectional diameter length of the sliding rod 22, so that the sliding rod 22 can pass over the current tooth 131 and move to the adjacent tooth 131 below.

[0051] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A steel bar protection device for concrete pouring, comprising two semicircular tubes that can be interlocked, one end of the two semicircular tubes being connected by a hinge shaft, and a fastening piece being arranged at one end of the semicircular tube away from the hinge shaft, characterized in that: A strip groove is provided on the inner side wall of one of the semicircular tubes in the vertical direction; It also includes a clamping device, the clamping device includes a sliding rod and a fixing rod both horizontally arranged in the strip-shaped groove, and the clamping device also includes a clamping plate vertically arranged; The fixed rod is located below the sliding rod, the fixed rod is fixedly connected to the inner wall of the strip groove, the sliding rod can move along the strip groove, and the cross section of the strip groove is an inverted T shape; The fixed rod is pivotally connected to the second movable rod, and the sliding rod is pivotally connected to the first movable rod; The free ends of the two movable rods are rotatably connected to the clamping plate; After the sliding rod moves, the position is locked by a locking device.

2. A steel bar protection device for concrete pouring according to claim 1, characterized in that: The locking device comprises two rows of teeth extending vertically and arranged on the bottom surface of the strip-shaped groove, and the two rows of teeth are respectively located on both sides of the first movable rod; The cross section of the teeth of the row of teeth is a right-angled triangle structure, a right-angled surface of the teeth is connected to the bottom surface of the strip groove, and the inclined surface of the teeth is located above another right-angled surface of the teeth.

3. A steel bar protection device for concrete pouring according to claim 1 or 2, characterized in that: The middle portion of the first movable rod is pivotally connected to the adjusting rod.

4. A steel bar protection device for concrete pouring according to claim 3, characterized in that: The clamping plate is provided with a strip hole extending vertically, and the free ends of the two movable rods are pivotally connected in the strip hole.

5. A steel bar protection device for concrete pouring according to claim 4, characterized in that: A rubber pad is arranged on one side of the clamping plate away from the strip groove.

6. A steel bar protection device for concrete pouring according to claim 5, characterized in that: The fastening parts are two door-shaped pin rods; The top surface and the bottom surface of the semicircular tube are both provided with pin holes.

7. A steel bar protection device for concrete pouring according to claim 6, characterized in that: A magnetic attraction piece is arranged on the bottom surface of the pin hole, and the magnetic attraction piece can be magnetically attracted to the two ends of the door-shaped pin rod.

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