Rebar retaining device

Abstract

The utility model belongs to the technical field of steel bar retaining, and discloses a steel bar retaining device which comprises a sleeve installed on a winding shaft, a fixing pipe connected with the sleeve and a retaining box installed on the fixing pipe, a retaining window is formed in the side wall of the retaining box in a penetrating mode, and a threaded groove is formed in the bottom face of the retaining box. A threaded rod is in threaded connection with the interior of the threaded groove, a sliding groove communicating with the threaded groove is formed in the inner wall of the retaining window, a pressing plate is arranged in the sliding groove in a sliding mode, the bottom face of the pressing plate is rotationally connected with the threaded rod, and an auxiliary assembly used for conducting auxiliary fixing on the reinforcing steel bars is arranged on the pressing plate. The reinforcing steel bar limiting device has the effect of improving the reinforcing steel bar limiting capacity of the pressing plate.

Description

Technical Field

[0001] This utility model relates to the field of steel bar anti-backward technology, and in particular to a steel bar anti-backward device. Background Technology

[0002] Reinforcing bars refer to steel used in reinforced concrete and prestressed reinforced concrete. Their cross-section is circular, sometimes square with rounded corners. They include plain round bars, ribbed bars, and twisted bars. During sampling, straightening, and other processing of the reinforcing bar coils wound on a take-up reel, the ends need to be pulled off the coils for cutting and sampling or fed into appropriate equipment for processing. This process is generally done manually. Due to the inherent rigidity of the reinforcing bars, a certain force needs to be applied to control their elasticity. Other operations require assistance during this time. If done alone, even slight carelessness can lead to the reinforcing bars rebounding due to their rigidity, posing a safety hazard.

[0003] Chinese utility model patent CN212581170U discloses a rebar anti-retraction device, including an anti-retraction box and a winding shaft. The anti-retraction box has fixed pipes installed at its top and bottom on one side. A spring is installed at the top of the inner cavity of the anti-retraction box, and a pressure plate is fixedly connected to the bottom of the spring. An anti-retraction window is provided through one side of the anti-retraction box, located below the pressure plate. This utility model relates to the field of rebar anti-retraction technology. This rebar anti-retraction device solves the problem that existing wound rebars are prone to rapid retraction and injury due to elasticity when a portion needs to be pulled out for use or processing. When the rebar does not need to be pulled forward, the spiral rod can be rotated to lower it, so that the pressure plate, without support, descends under the action of the spring and presses down on the rebar inside the anti-retraction window. This effectively prevents the wound rebar from easily springing back due to the winding elasticity when it is used due to long-term winding deformation, thus avoiding injury.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: The device drives the pressure plate downwards and presses against the upper surface of the reinforcing bar by rotating the threaded rod, thereby stabilizing the reinforcing bar. However, in actual use, because the surface of the reinforcing bar has transverse ribs, when the pressure plate moves downwards and presses against these ribs, the limited contact area between the plate-shaped pressure plate and the transverse ribs results in limited restraint on the reinforcing bar. Consequently, the reinforcing bar is prone to relative sliding with the pressure plate under external force, leading to a poor user experience. Utility Model Content

[0005] To solve the above problems, this utility model provides a rebar anti-reverse device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rebar anti-reverse device, comprising a sleeve installed on a winding shaft, a fixed pipe connected to the sleeve, and an anti-reverse box installed on the fixed pipe. An anti-reverse window is provided through the side wall of the anti-reverse box, and a threaded groove is provided on the bottom surface of the anti-reverse box. A threaded rod is threadedly connected in the threaded groove. A sliding groove communicating with the threaded groove is provided on the inner wall of the anti-reverse window. A pressure plate is slidably arranged in the sliding groove. The bottom surface of the pressure plate is rotatably connected to the threaded rod. An auxiliary component for auxiliary fixing of the rebar is provided on the pressure plate.

[0007] By adopting the above technical solution, during the sampling and straightening processes of the steel bar coil wound on the take-up shaft, the head of the coil needs to be pulled out of the coil for cutting and sampling or imported into the corresponding equipment for processing. At this time, the operator needs to pull the head of the steel bar and pass it through the anti-reverse window, and rotate the threaded rod. This allows the pressure plate to move downward under the action of the threaded rod and press against the transverse ribs on the steel bar, thus initially stabilizing the steel bar. Furthermore, the operator only needs to activate the auxiliary component to allow the sleeve rod to continue moving downward and locking between the two transverse ribs, thereby blocking the steel bar in the horizontal direction and further reducing the probability of displacement of the steel bar under the action of external force, thus improving the operator's user experience.

[0008] Furthermore, a stabilizing rod is installed between the inner top wall and the inner bottom wall of the sliding groove, and the stabilizing rod passes through the pressure plate and is slidably connected.

[0009] By adopting the above technical solution, the stabilizer bar improves the stability of the pressure plate, thereby reducing the probability of swaying when the pressure plate moves up and down, thus improving the user experience for staff.

[0010] Furthermore, a connecting groove is provided through the inner wall of the sliding groove, a moving groove is provided on the bottom surface of the pressure plate, a placement groove is provided through the inner wall of the moving groove, and the auxiliary component includes a telescopic rod slidably disposed in the moving groove and a drive rod fixedly disposed on the side wall of the telescopic rod, the other end of the drive rod being slidably connected to the placement groove.

[0011] Furthermore, the telescopic rod includes a sleeve that is slidably disposed in the moving groove and has an open bottom, a rod that is slidably disposed in the sleeve, and a compression spring that is fixed at one end to the upper surface of the rod, the other end of the compression spring being fixed to the inner top wall of the sleeve.

[0012] By adopting the above technical solution, once the reinforcing bar has initially stabilized, the worker needs to pull the drive rod to make the telescopic rod slide along the extension direction of the moving groove. Subsequently, when the sleeve rod is exactly aligned with the gap between two transverse ribs, the sleeve rod moves downward under the action of the compression spring and moves between the two transverse ribs, thereby enabling the sleeve rod to perform a secondary limiting on the reinforcing bar, thus further improving the stability of the reinforcing bar.

[0013] Furthermore, a magnet is fixed to the upper surface of the sleeve rod, and an electromagnet is fixed to the inner top wall of the sleeve.

[0014] By adopting the above technical solution, when workers do not need to fix the reinforcing bars, they can separate the sleeve rod from the reinforcing bars. At this time, workers only need to turn on the electromagnet, which will attract the electromagnet to the magnetic block, causing the sleeve rod to move upward under the action of the magnetic block, thereby separating the sleeve rod from the reinforcing bars.

[0015] Furthermore, a limiting groove is formed on the inner wall of the moving groove, and a limiting block is slidably arranged in the limiting groove, with the limiting block and the sleeve being fixed to each other.

[0016] By adopting the above technical solution, the limiting block improves the stability of the sleeve, thereby reducing the probability of the sleeve moving up and down under the action of external force, thus improving the user experience of the staff.

[0017] Furthermore, a handle is fixed to the end of the drive rod to reduce the difficulty for workers to move the drive rod.

[0018] Furthermore, a control switch is provided on the side wall of the anti-reverse box, and the control switch is electrically connected to the electromagnet.

[0019] By adopting the above technical solution, when the staff needs to adjust the height of the lever, they only need to press the control switch to adjust the electromagnet's switching state, thereby improving the staff's user experience.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this application, during the sampling, straightening, and other processing of the steel bar coil wound on the take-up shaft, the head needs to be pulled out of the coil for cutting and sampling or imported into the corresponding equipment for processing. At this time, the operator needs to pull the head of the steel bar and pass it through the anti-reverse window, and rotate the threaded rod. This allows the pressure plate to move downward under the action of the threaded rod and press against the transverse ribs on the steel bar, thereby initially stabilizing the steel bar. Furthermore, the operator only needs to activate the auxiliary component to allow the sleeve rod to continue moving downward and locking between the two transverse ribs, thereby blocking the steel bar in the horizontal direction and further reducing the probability of displacement of the steel bar under the action of external force, thus improving the user experience for the operator.

[0022] 2. In this application, after the reinforcing bar has initially stabilized, the worker needs to pull the drive rod to make the telescopic rod slide along the extension direction of the moving groove. Subsequently, when the sleeve rod is exactly aligned with the gap between two of the transverse ribs, the sleeve rod moves downward under the action of the compression spring and moves between the two transverse ribs, thereby making the sleeve rod perform secondary limiting on the reinforcing bar, thus further improving the stability of the reinforcing bar;

[0023] 3. In this application, when the worker does not need to fix the reinforcing bar, the worker needs to separate the sleeve rod from the reinforcing bar. At this time, the worker only needs to turn on the electromagnet, which will cause the electromagnet and the magnetic block to attract each other, thereby causing the sleeve rod to move upward under the action of the magnetic block, thus separating the sleeve rod from the reinforcing bar. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the anti-reverse window and its connection structure according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the connecting groove and its connection structure according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the mounting groove and its connection structure according to an embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the telescopic rod and its connection structure according to an embodiment of the present utility model;

[0029] Figure 6 This is a schematic diagram of the compression spring and its connection structure according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the limiting groove and its connection structure according to an embodiment of the present invention.

[0031] In the diagram: 1. Sleeve; 11. Fixed tube; 2. Anti-reverse box; 21. Anti-reverse window; 3. Threaded groove; 31. Threaded rod; 4. Sliding groove; 41. Pressure plate; 42. Connecting groove; 43. Moving groove; 44. Placement groove; 5. Auxiliary component; 51. Telescopic rod; 511. Sleeve; 512. Sleeve rod; 513. Compression spring; 52. Drive rod; 6. Stabilizing rod; 61. Magnet block; 7. Electromagnet; 71. Limit groove; 8. Limit block; 81. Handle; 9. Control switch. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] like Figure 1-7 As shown in the figure, this application discloses a rebar anti-reverse device, including a sleeve 1, a fixed pipe 11, an anti-reverse box 2, an anti-reverse window 21, a threaded rod 31, a pressure plate 41, auxiliary components 5, a stabilizing rod 6, a magnet 61, an electromagnet 7, a limiting block 8, a handle 81, and a control switch 9. The sleeve 1 is installed on a winding shaft, the fixed pipe 11 is connected to the sleeve 1, and the anti-reverse box 2 is installed on the fixed pipe 11. An anti-reverse window 21 is provided through the side wall of the anti-reverse box 2, and a threaded groove 3 is provided on the bottom surface of the anti-reverse box 2. The threaded rod 31 is threadedly connected in the threaded groove 3. A sliding groove 4 is provided on the inner wall of the anti-reverse window 21, which communicates with the threaded groove 3. The pressure plate 41 is a plate-shaped structure, and the pressure plate 41 is slidably disposed in the sliding groove 4, and the bottom surface of the pressure plate 41 is rotatably connected to the threaded rod 31.

[0034] The stabilizer bar 6 is a round rod structure. It is installed between the inner top wall and the inner bottom wall of the sliding groove 4, and it passes through the pressure plate 41 and is slidably connected. The stabilizer bar 6 improves the stability of the pressure plate 41, thereby reducing the probability of swaying when the pressure plate 41 moves up and down, thus improving the user experience for the staff.

[0035] A connecting groove 42 is formed through the inner wall of the sliding groove 4, and a moving groove 43 is formed on the bottom surface of the pressure plate 41. A placement groove 44 is formed through the inner wall of the moving groove 43. An auxiliary component 5 is set on the pressure plate 41 for auxiliary fixing of the reinforcing bar. The auxiliary component 5 includes a telescopic rod 51 and a driving rod 52. The telescopic rod 51 is slidably set in the moving groove 43. The telescopic rod 51 includes a sleeve 511, a sleeve rod 512, and a compression spring 513. The sleeve 511 is a rectangular rod-shaped structure with an open bottom end. The sleeve 511 is slidably set in the moving groove 43. The sleeve rod 512 is a rectangular rod-shaped structure. The sleeve rod 512 is slidably set in the sleeve 511. One end of the compression spring 513 is fixed to the upper surface of the sleeve rod 512, and the other end of the compression spring 513 is fixed to the inner top wall of the sleeve 511. The drive rod 52 is a round rod structure. The drive rod 52 is fixedly installed on the side wall of the telescopic rod 51, and the other end of the drive rod 52 is slidably connected to the mounting groove 44.

[0036] Once the reinforcing bar has initially stabilized, the worker pulls the drive rod 52, causing the telescopic rod 51 to slide along the extension direction of the moving groove 43. Subsequently, when the sleeve rod 512 is precisely aligned with the gap between two transverse ribs, the sleeve rod 512 moves downward under the action of the compression spring 513 and moves between the two transverse ribs, thereby allowing the sleeve rod 512 to perform a secondary limiting on the reinforcing bar, further improving the stability of the reinforcing bar.

[0037] The magnet 61 is a block structure, fixed to the upper surface of the sleeve 512, and the electromagnet 7 is fixed to the inner top wall of the sleeve 511. When the worker does not need to fix the rebar, the worker needs to separate the sleeve 512 from the rebar. At this time, the worker only needs to turn on the electromagnet 7, which will attract the electromagnet 7 to the magnet 61, thereby causing the sleeve 512 to move upward under the action of the magnet 61, thus separating the sleeve 512 from the rebar.

[0038] A limiting groove 71 is formed on the inner wall of the moving groove 43. The limiting block 8 is a block structure and is slidably disposed in the limiting groove 71. The limiting block 8 is fixed to the sleeve 511. The limiting block 8 improves the stability of the sleeve 511, thereby reducing the probability of the sleeve 511 moving up and down under the action of external force, thus improving the user experience of the staff.

[0039] To reduce the difficulty for staff to move the drive lever 52, a handle 81 is fixed to the end of the drive lever 52.

[0040] The control switch 9 is located on the side wall of the anti-reverse box 2 and is electrically connected to the electromagnet 7. When the operator needs to adjust the height of the sleeve rod 512, the operator only needs to press the control switch 9 to adjust the switching state of the electromagnet 7, thereby improving the operator's user experience.

[0041] The working principle of the rebar anti-reverse device in this embodiment is as follows: During the sampling, straightening, and other processing of the rebar coil wound on the take-up shaft, the head of the rebar needs to be pulled out of the coil for cutting and sampling or imported into the corresponding equipment for processing. At this time, the operator needs to pull the head of the rebar and make it pass through the anti-reverse window 21, and rotate the threaded rod 31. This allows the pressure plate 41 to move downward under the action of the threaded rod 31 and press against the transverse ribs on the rebar, thereby initially stabilizing the rebar. Furthermore, the operator only needs to activate the auxiliary component 5 to allow the sleeve rod 512 to continue to move downward and lock between the two transverse ribs, thereby blocking the rebar in the horizontal direction and further reducing the probability of the rebar displacement under the action of external force, thus improving the user experience.

[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A rebar anti-reverse device, comprising a sleeve (1) installed on a winding shaft, a fixed pipe (11) connected to the sleeve (1), and an anti-reverse box (2) installed on the fixed pipe (11), characterized in that: The anti-reverse box (2) has an anti-reverse window (21) through the side wall. The bottom surface of the anti-reverse box (2) has a threaded groove (3). A threaded rod (31) is threadedly connected in the threaded groove (3). A sliding groove (4) communicating with the threaded groove (3) is provided on the inner wall of the anti-reverse window (21). A pressure plate (41) is slidably arranged in the sliding groove (4). The bottom surface of the pressure plate (41) is rotatably connected to the threaded rod (31). An auxiliary component (5) for auxiliary fixing of the reinforcing bar is provided on the pressure plate (41).

2. The rebar anti-reverse device according to claim 1, characterized in that: A stabilizing rod (6) is installed between the inner top wall and the inner bottom wall of the sliding groove (4), and the stabilizing rod (6) passes through the pressure plate (41) and is slidably connected.

3. The rebar anti-reverse device according to claim 2, characterized in that: The inner wall of the sliding groove (4) is provided with a through groove (42), the bottom surface of the pressure plate (41) is provided with a moving groove (43), the inner wall of the moving groove (43) is provided with a placement groove (44), the auxiliary component (5) includes a telescopic rod (51) slidably disposed in the moving groove (43) and a drive rod (52) fixedly disposed on the side wall of the telescopic rod (51), the other end of the drive rod (52) being slidably connected to the placement groove (44).

4. A rebar anti-reverse device according to claim 3, characterized in that: The telescopic rod (51) includes a sleeve (511) that is slidably disposed in the moving groove (43) and has an open bottom, a rod (512) that is slidably disposed in the sleeve (511), and a compression spring (513) with one end fixed to the upper surface of the rod (512). The other end of the compression spring (513) is fixed to the inner top wall of the sleeve (511).

5. A rebar anti-reverse device according to claim 4, characterized in that: A magnet (61) is fixed on the upper surface of the sleeve (512), and an electromagnet (7) is fixed on the inner top wall of the sleeve (511).

6. A rebar anti-reverse device according to claim 5, characterized in that: A limiting groove (71) is provided on the inner wall of the moving groove (43), and a limiting block (8) is slidably arranged in the limiting groove (71). The limiting block (8) is fixed to the sleeve (511).

7. A rebar anti-reverse device according to claim 6, characterized in that: The end of the drive rod (52) is fixed with a handle (81) to reduce the difficulty for the worker to move the drive rod (52).

8. A rebar anti-reverse device according to claim 7, characterized in that: A control switch (9) is provided on the side wall of the anti-reverse box (2), and the control switch (9) is electrically connected to the electromagnet (7).

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