Thickness control device for beam side steel bar protective layer

By designing a steel bar protective layer thickness control device including a resistance rod and a crossbeam, and utilizing a combined structure of a rotating shaft and a screw rod, the thickness of the steel bar protective layer can be quickly adjusted, solving the problem that the existing device requires two devices to be used at the same time, simplifying the installation process and improving applicability.

CN223343704UActive Publication Date: 2025-09-16CHINA RAILWAY CONSTR ELECTRIFICATION BUREAU GRP CO LTD +2
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Patent Information

Application Number
CN202422298724.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-09-16
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

The existing steel bar protective layer thickness control device requires two devices to be used simultaneously, which is complicated to install and increases the labor intensity of workers, and has poor applicability.

Method used

A device consisting of two resistance rods and a crossbeam installed on the outside of the steel cage is designed. The screw is driven to rotate by the rotating shaft, and the sliding seat and reinforcing ribs are used to quickly adjust the position of the resistance rod. It is suitable for steel cages of different specifications and simplifies the installation process.

Benefits of technology

It realizes the rapid adjustment of the thickness of the steel bar protective layer, simplifies the installation process, improves the application range and installation efficiency of the device, and reduces the labor intensity of workers.

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Abstract

The utility model relates to the technical field of building construction, in particular to a beam side reinforcement protective layer thickness control device which comprises two abutting rods installed on the outer side of a reinforcement cage, a cross beam is movably connected to the upper portions of the abutting rods, end covers are connected to the two ends of the cross beam in an embedded mode, and an adjusting module is detachably connected to the upper surface of the cross beam. The outer surface of the adjusting module is rotationally connected with a displacement module, the end cover is used for increasing the strength of the cross beam, and the adjusting module is used for being matched with the displacement module to adjust the positions of the two abutting rods. The position of the abutting rod is further adjusted, so that the width of the device is adjustable, the device is further suitable for reinforcement cages of different specifications, the outer surface of the reinforcement cage is directly sleeved with the device during use, the installation process of the device is simplified, and the reinforcing ribs are matched with the end covers to increase the strength of the beam.
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Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a device for controlling the thickness of a steel bar protective layer on a beam side. Background Art

[0002] Currently, reinforced concrete beam foundations are used, with anchor bolts installed every 3 meters. Square tube columns and galvanized spray-coated fence mesh are installed on top. Cement mortar pads are generally used to control the protective layer of the beam reinforcement. During quality inspections, the installation of the reinforcement protective layer pads often fails to meet the requirements. Based on this, a thickness control device is needed. For example, a standardized height-adjustable concrete beam side protective layer control device is described in Publication No. CN217054390U. The device includes a vertical rod installed on the side of the beam body, and the vertical rod has multiple pairs of bolt holes along its axial direction.

[0003] Although the above device can be adjusted in height, the protective layer needs to evenly wrap the steel cage. Therefore, two of the above devices need to be used at the same time, which involves two devices and ground installation, as well as installation between devices, which will increase the labor intensity of workers and make the device inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a device for controlling the thickness of the steel bar protective layer on the side of a beam, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A device for controlling the thickness of the steel bar protective layer on the side of a beam comprises two interference rods installed on the outside of a steel cage, a crossbeam movably connected above the interference rods, end caps nested and connected at both ends of the crossbeam, an adjustment module detachably connected to the upper surface of the crossbeam, a displacement module rotatably connected to the outer surface of the adjustment module, the end caps are used to increase the strength of the crossbeam, and the adjustment module is used to cooperate with the displacement module to adjust the positions of the two interference rods, thereby improving the adaptability of the device to steel cages of different specifications.

[0007] Furthermore, a plurality of reinforcing ribs are fixedly connected to the inner surface of the crossbeam, a notch is opened on the upper surface of the crossbeam, and a mounting plate is fixedly connected to the notch.

[0008] Furthermore, the inner rod is slidably connected to the inner part of the interference rod, the outer surface of the interference rod is rotatably connected to the threaded barrel, the inner part of the threaded barrel is fixedly connected to a fastening bolt, and one end of the fastening bolt is in conflict with the inner rod.

[0009] Furthermore, the adjustment module includes a mounting cover, which is detachably connected to the upper surface of the beam, and the upper surface of the mounting cover is threadedly connected to a locking bolt, and the mounting cover is detachably connected to the beam through the locking bolt, and the welding frame is fixedly connected to the lower surface of the mounting cover by welding, and the outer surface of the welding frame is embedded with a rotating shaft, and the outer surface of the rotating shaft is fixedly connected with a worm gear, and the interior of the mounting cover is embedded with a rotatable connection, and the worm and the worm gear are meshed and connected, and the hexagonal column is fixedly connected to one end of the worm, and is used to cooperate with an external electric wrench to rotate the worm.

[0010] Furthermore, a snap-in groove is provided at a position corresponding to the end surface of the end cover and the reinforcing rib, the snap-in groove is engaged with the reinforcing rib, a mounting bolt is threadedly connected to the upper surface of the end cover, and one end of the mounting bolt contacts the crossbeam.

[0011] Furthermore, the displacement module includes a screw rod, which is fixedly connected to the two ends of the rotating shaft, and there are two screw rods, the rotation directions of the two screw rods are opposite, and they cooperate with the rotating shaft to form a double-headed screw rod, the screw rod and the end cover are rotatably connected, the sliding seat is threadedly connected to the outer surface of the screw rod, the outer surface of the sliding seat is provided with a sliding groove, and the sliding seat and the reinforcing rib are slidably connected.

[0012] Furthermore, the inner rod is fixedly connected to the sliding seat, and through grooves are provided at corresponding positions on the outer surface of the crossbeam and the inner rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The screw rod is driven to rotate by the rotating shaft, so that the two sliding seats cooperate with the sliding groove and the reinforcement ribs to move along the inside of the beam, which is convenient for quickly adjusting the position of the sliding seat. The position of the inner rod is adjusted by the screw rod in conjunction with the sliding seat, and the position of the interference rod is further adjusted, so that the width of the device can be quickly adjusted, further suitable for steel cages of different specifications, and the scope of application of the device is improved;

[0015] 2. The rotating shaft drives the screw to rotate, so that the sliding seat cooperates with the sliding groove and the reinforcing ribs to move along the inside of the beam. The position of the inner rod is adjusted by the screw, and the position of the interference rod is further adjusted to make the width of the device adjustable, which is further suitable for steel cages of different specifications. When in use, it is directly put on the outer surface of the steel cage to simplify the installation process of the device. The reinforcing ribs cooperate with the end cover to increase the strength of the beam, and a bearing is installed at the connection between the end cover and the screw to limit the other end of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the utility model in use;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the beam of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of this practical adjustment module.

[0020] In the figure: 1. Beam; 101. Reinforcement rib; 102. Mounting plate; 2. Resistance rod; 201. Inner rod; 202. Threaded barrel; 203. Fastening bolt; 3. Support assembly; 4. Fixing assembly; 5. Steel cage; 6. Adjustment module; 601. Mounting cover; 602. Locking bolt; 603. Welding frame; 604. Worm; 605. Rotating shaft; 606. Worm gear; 607. Hexagonal column; 7. End cover; 701. Snap-in groove; 702. Mounting bolt; 8. Displacement module; 801. Screw; 802. Sliding seat; 803. Sliding groove; 9. Template. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 In an embodiment of the present invention, a device for controlling the thickness of the steel bar protective layer on the side of a beam includes two interference rods 2 installed on the outside of a steel cage 5, a crossbeam 1 is movably connected above the interference rod 2, and end covers 7 are nested and connected at both ends of the crossbeam 1. An adjustment module 6 is detachably connected to the upper surface of the crossbeam 1, and a displacement module 8 is rotatably connected to the outer surface of the adjustment module 6. The end cover 7 is used to increase the strength of the crossbeam 1, and the adjustment module 6 is used to cooperate with the displacement module 8 to adjust the positions of the two interference rods 2, thereby improving the adaptability of the device to steel cages 5 of different specifications.

[0023] Specifically, when in use, place the beam 1 on the steel cage 5, then adjust the position of the interference rod 2, and then make the external formwork 9 contact the interference rod 2, wherein, multiple beams 1 need to be set, and the distance between them is 50 cm, and then the wooden board is internally supported by this device, and the outer surface of the formwork 9 is fixed by the support component 3 and the fixing component 4. The support component 3 is a formwork top support with a screw, and the fixing component 4 is an anchor pile. The use of the support component 3, the fixing component 4 and the formwork 9 is the existing technology, and no unnecessary details are made in this article. Further adjust the distance between the steel cage 5 and the fixing component 4, and pull out this device before vibrating the concrete to achieve the purpose of controlling the thickness of the protective layer.

[0024] Example 1

[0025] like Figure 1-3 As shown, the inner surface of the beam 1 is fixedly connected with a number of reinforcing ribs 101, the upper surface of the beam 1 is provided with a slot, and the slot position is fixedly connected with a mounting plate 102, the inner sliding connection of the interference rod 2 is the inner rod 201, the outer surface of the interference rod 2 is rotatably connected with a threaded cylinder 202, the inner part of the threaded cylinder 202 is fixedly connected with a fastening bolt 203, one end of the fastening bolt 203 is in conflict with the inner rod 201, the end face of the end cover 7 and the corresponding position of the reinforcing rib 101 are provided with a snap-in groove 701, the snap-in groove 701 is engaged with the reinforcing rib 101, the upper surface of the end cover 7 is threadedly connected with a mounting bolt 702, and one end of the mounting bolt 702 is in conflict with the beam 1.

[0026] In this embodiment, the fastening bolt 203 is rotated so that the end of the fastening bolt 203 is separated from the inner rod 201 under the push of the thread, and the interference rod 2 can be manually pulled downward along the inner rod 201 to adjust the position of the interference rod 2 so that the overall height of the device can be adjusted.

[0027] Example 2

[0028] On the basis of the first embodiment, in order to make up for the problem in the first embodiment that it is inconvenient to adjust the width of the device.

[0029] like Figure 1-4 As shown, the adjustment module 6 includes a mounting cover 601, which is detachably connected to the upper surface of the beam 1, and a locking bolt 602 is threadedly connected to the upper surface of the mounting cover 601. The mounting cover 601 is detachably connected to the beam 1 through the locking bolt 602. The welding frame 603 is fixedly connected to the lower surface of the mounting cover 601 by welding. The outer surface of the welding frame 603 is embedded with a rotating shaft 605, and the outer surface of the rotating shaft 605 is fixedly connected with a worm gear 606. The interior of the mounting cover 601 is embedded with a rotatable connection. The worm 604 and the worm gear 606 are meshed and connected. The hexagonal column 607 is fixedly connected to one end of the worm 604 for cooperating with an external electric wrench to rotate the worm 604.

[0030] In this embodiment, the locking bolt 602 is threadedly connected to the mounting plate 102 , and the rotation of the worm 604 can drive the worm wheel 606 to rotate, further driving the rotation shaft 605 to rotate, and the worm wheel 606 can be self-locking, which is convenient for fixing the position of the displacement module 8.

[0031] like Figure 1-4As shown, the displacement module 8 includes a screw rod 801, which is fixedly connected to both ends of the rotating shaft 605, and there are two screw rods 801. The two screw rods 801 have opposite rotation directions and cooperate with the rotating shaft 605 to form a double-headed screw rod. The screw rod 801 is rotatably connected to the end cover 7, and the sliding seat 802 is threadedly connected to the outer surface of the screw rod 801. The outer surface of the sliding seat 802 is provided with a sliding groove 803. The sliding seat 802 is slidably connected to the reinforcement rib 101, the inner rod 201 is fixedly connected to the sliding seat 802, and a through groove is provided at the corresponding position of the outer surface of the beam 1 and the inner rod 201.

[0032] In this embodiment, the screw rod 801 is driven to rotate by the rotating shaft 605, so that the two sliding seats 802 cooperate with the sliding groove 803 and the reinforcing ribs 101 to move along the inside of the beam 1, which is convenient for quickly adjusting the position of the sliding seat 802. The position of the inner rod 201 is adjusted by the screw rod 801 cooperating with the sliding seat 802, and the position of the interference rod 2 is further adjusted, so that the width of the device can be quickly adjusted, which is convenient for direct plugging and unplugging of the device, simplifies the installation process of the device, and is further suitable for steel cages 5 of different specifications, thereby improving the scope of application of the device. The reinforcing ribs 101 cooperate with the end cover 7 to increase the strength of the beam 1, and a bearing is installed at the connection position between the end cover 7 and the screw rod 801 to limit the other end of the screw rod 801.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for controlling the thickness of a steel bar protective layer on the side of a beam, comprising two abutment rods (2) mounted on the outside of a steel bar cage (5), wherein a crossbeam (1) is movably connected above the abutment rods (2); It is characterized by: End covers (7) are nested and connected at both ends of the crossbeam (1); an adjustment module (6) is detachably connected to the upper surface of the crossbeam (1); a displacement module (8) is rotatably connected to the outer surface of the adjustment module (6); the end covers (7) are used to increase the strength of the crossbeam (1); the adjustment module (6) is used to cooperate with the displacement module (8) to adjust the positions of the two interference rods (2), thereby improving the adaptability of the device to steel cages (5) of different specifications.

2. The device for controlling the thickness of the steel bar protective layer on the side of the beam according to claim 1, characterized in that: A plurality of reinforcing ribs (101) are fixedly connected to the inner surface of the crossbeam (1), a notch is provided on the upper surface of the crossbeam (1), and a mounting plate (102) is fixedly connected to the notch.

3. The device for controlling the thickness of the steel bar protective layer on the side of the beam according to claim 2, characterized in that: The interior of the resisting rod (2) is slidably connected to an inner rod (201), the outer surface of the resisting rod (2) is rotatably connected to a threaded barrel (202), the interior of the threaded barrel (202) is fixedly connected to a fastening bolt (203), and one end of the fastening bolt (203) is in contact with the inner rod (201).

4. The device for controlling the thickness of the steel bar protective layer on the side of the beam according to claim 3, characterized in that: The regulating module (6) comprises: A mounting cover (601) is detachably connected to the upper surface of the crossbeam (1), wherein the upper surface of the mounting cover (601) is threadedly connected to a locking bolt (602), and the mounting cover (601) is detachably connected to the crossbeam (1) via the locking bolt (602); A welding frame (603) is fixedly connected to the lower surface of the mounting cover (601) by welding, a rotating shaft (605) is embedded in the outer surface of the welding frame (603) and is rotatably connected, a worm gear (606) is fixedly connected to the outer surface of the rotating shaft (605), a worm (604) is embedded in the interior of the mounting cover (601) and is rotatably connected, and the worm gear (604) and the worm gear (606) are meshed and connected; The hexagonal column (607) is fixedly connected to one end of the worm (604) and is used to cooperate with an external electric wrench to rotate the worm (604).

5. The device for controlling the thickness of the steel bar protective layer on the side of the beam according to claim 4, characterized in that: A snap-fit ​​groove (701) is provided at corresponding positions of the end surface of the end cover (7) and the reinforcing rib (101), the snap-fit ​​groove (701) and the reinforcing rib (101) are snap-fitted, and a mounting bolt (702) is threadedly connected to the upper surface of the end cover (7), one end of the mounting bolt (702) contacts the crossbeam (1).

6. The device for controlling the thickness of the steel bar protective layer on the side of the beam according to claim 1, characterized in that: The displacement module (8) comprises: A screw rod (801) is fixedly connected to both ends of the rotating shaft (605), and there are two screw rods (801). The two screw rods (801) rotate in opposite directions and cooperate with the rotating shaft (605) to form a double-headed screw rod. The screw rod (801) is rotatably connected to the end cover (7); The sliding seat (802) is threadedly connected to the outer surface of the screw rod (801), and a sliding groove (803) is provided on the outer surface of the sliding seat (802). The sliding seat (802) and the reinforcing rib (101) are slidably connected.

7. The device for controlling the thickness of the steel bar protective layer on the side of the beam according to claim 3, characterized in that: The inner rod (201) and the sliding seat (802) are fixedly connected, and through grooves are provided at corresponding positions on the outer surface of the crossbeam (1) and the inner rod (201).