A steel bar connection device

Abstract

This application provides a rebar connection device, including a mating cylinder, a driving assembly, a first mating assembly, a second mating assembly, and a mating block. The first mating assembly is disposed on the upper part of the mating cylinder, and the driving assembly is disposed within the mating cylinder. The second mating assembly is connected to the movable part of the driving assembly, and the driving assembly can drive the second mating assembly closer to or away from the first mating assembly. The second mating assembly is provided with a first pressing part for pressing the rebar sleeve. The mating block is hinged to the second mating assembly, and the mating block can confine the rebar within the first pressing part. As the driving assembly drives the second mating assembly to move towards the second mating assembly, the first pressing part continuously presses against the rebar sleeve, causing the protruding ribs on the surface of the rebar to embed into the rebar sleeve, completing the connection of the two rebar sections. Because the mating block is hinged to the second mating assembly, the problems of repeated assembly and easy loss of the mating block are solved.

Description

Technical Field

[0001] This application relates to the field of engineering construction equipment technology, and in particular to a rebar connection device. Background Technology

[0002] Reinforcing steel refers to steel used in reinforced concrete and prestressed reinforced concrete. Its cross-section is circular, sometimes square with rounded corners, and includes plain round bars, ribbed bars, and twisted bars. Reinforcing steel primarily bears tensile stress in concrete. Deformed reinforcing steel, due to the ribs, has a greater bond with the concrete, thus better withstanding external forces. Reinforcing steel is widely used in various building structures, especially large, heavy, lightweight thin-walled, and high-rise building structures. During construction, some structures need to be prefabricated at the production site and then transported to the project site for assembly. During assembly, the reinforcing steel of the prefabricated structure needs to be connected to the reinforcing steel on the project site.

[0003] In existing technologies, cold extrusion connection devices for reinforcing bars are often used to connect the ends of two sections of reinforcing bars together using a connecting sleeve.

[0004] In existing cold extrusion rebar connection devices, the mating block and the main body of the device are separate structures. This requires repeated disassembly and reassembly of the mating block during the connection of multiple rebar sections, making the operation cumbersome. Furthermore, the mating block is easily lost when storing the cold extrusion rebar connection device, rendering the device unusable. Utility Model Content

[0005] This application provides a rebar connection device for connecting the ends of two rebars together.

[0006] In a first aspect, embodiments of this application provide a rebar connection device, including:

[0007] A mating cylinder, wherein a first mating component is provided on the upper part of the mating cylinder;

[0008] A drive assembly disposed in the mating cylinder;

[0009] The second mating component is connected to the movable part of the driving component. The driving component is used to drive the second mating component to move closer to or away from the first mating component. The second mating component is provided with a first extrusion part for extruding the steel bar sleeve.

[0010] A mating block hinged to the second mating component, the mating block being able to confine the reinforcing bar within the first extrusion section.

[0011] In one feasible implementation, the second mating component includes a seat body fixedly connected to the movable part of the drive component, the mating block being hinged to the seat body, and the first pressing part being disposed in the seat body.

[0012] In one feasible implementation, the mating block is provided with a second extrusion part, which, together with the first extrusion part, can enclose an extrusion hole for extruding the steel bar sleeve.

[0013] In one feasible implementation, the first mating component includes a fixed seat and a limiting block. The fixed seat is fixedly connected to the mating cylinder. The fixed seat is provided with an opening for the reinforcing bar to pass through. The limiting block is hinged to the fixed seat and can limit the reinforcing bar to be located in the opening.

[0014] In one feasible implementation, the limiting block is provided with a first limiting hole, the fixing base is provided with a first through hole, and the limiting member extends into the first limiting hole after passing through the first through hole, so as to limit the limiting block on the fixing base.

[0015] In one feasible implementation, the mating block is provided with a second limiting hole, and the base body is provided with a second through hole. The limiting member passes through the second limiting hole and extends into the second through hole, so that the mating block is limited to the base body.

[0016] In one feasible implementation, the rebar connection device further includes a first abutting part disposed on the fixing seat for pressing against the top of the rebar sleeve.

[0017] In one feasible implementation, the rebar connection device further includes a second abutting part disposed on the limiting block; the second abutting part can cooperate with the first abutting part and jointly abut against the rebar sleeve.

[0018] In one feasible implementation, the drive assembly is configured as a hydraulic cylinder, the telescopic rod of the hydraulic cylinder is fixedly connected to the mating cylinder, the cylinder body of the hydraulic cylinder moves up and down along the mating cylinder, and the second mating assembly is fixedly connected to the cylinder body.

[0019] This application provides a rebar connection device, including a mating cylinder, a driving assembly, a first mating assembly, a second mating assembly, and a mating block. The first mating assembly is disposed on the upper part of the mating cylinder, and the driving assembly is disposed within the mating cylinder. The second mating assembly is connected to the movable part of the driving assembly, and the driving assembly can drive the second mating assembly closer to or away from the first mating assembly. The second mating assembly is provided with a first pressing part for pressing the rebar sleeve. The mating block is hinged to the second mating assembly, and the mating block can confine the rebar within the first pressing part. As the driving assembly drives the second mating assembly to move towards the second mating assembly, the first pressing part continuously presses against the rebar sleeve, causing the protruding ribs on the surface of the rebar to embed into the rebar sleeve, completing the connection of the two rebar sections. Because the mating block is hinged to the second mating assembly, the problems of repeated assembly and easy loss of the mating block are solved. Attached Figure Description

[0020] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present application, but do not constitute an undue limitation of the present invention.

[0021] In the attached diagram:

[0022] Figure 1 This is a first structural schematic diagram of a steel bar connection device provided in an embodiment of this application;

[0023] Figure 2 yes Figure 1 A schematic diagram of the second structure of the steel bar connection device;

[0024] Figure 3 yes Figure 1 A schematic diagram of the third structure of the steel bar connection device;

[0025] Figure 4 yes Figure 1 The fourth structural diagram of the steel bar connection device.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100-Matching cylinder; 200-First mating assembly; 300-Drive assembly; 400-Second mating assembly; 500-Matching block; 600-Second pressing part; 700-First abutting part; 800-Second abutting part; 900-Handle; 1000-Protective shell;

[0028] 210-Fixed base; 220-Limiting block; 310-Telescopic rod; 320-Cylinder body; 410-Seat body; 420-First extrusion part; 510-Second limiting hole;

[0029] 211-First through hole; 221-First limiting hole; 411-Second through hole. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this application, 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. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0031] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] Reinforcing steel refers to steel used in reinforced concrete and prestressed reinforced concrete. Its cross-section is circular, sometimes square with rounded corners, and includes plain round bars, ribbed bars, and twisted bars. Reinforcing steel primarily bears tensile stress in concrete. Deformed reinforcing steel, due to the ribs, has a greater bond with the concrete, thus better withstanding external forces. Reinforcing steel is widely used in various building structures, especially large, heavy, lightweight thin-walled, and high-rise building structures. During construction, some structures need to be prefabricated at the production site and then transported to the project site for assembly. During assembly, the reinforcing steel of the prefabricated structure needs to be connected to the reinforcing steel on the project site.

[0035] In existing technologies, cold extrusion connection devices for reinforcing bars are often used to connect the ends of two sections of reinforcing bars together using a connecting sleeve.

[0036] In existing cold extrusion rebar connection devices, the mating block and the main body of the device are separate structures. This requires repeated disassembly and reassembly of the mating block during the connection of multiple rebar sections, making the operation cumbersome. Furthermore, the mating block is easily lost when storing the cold extrusion rebar connection device, rendering the device unusable.

[0037] Figure 1 This is a first structural schematic diagram of a steel bar connection device provided in an embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the second structure of the steel bar connection device; Figure 3 yes Figure 1 A schematic diagram of the third structure of the steel bar connection device; Figure 4 yes Figure 1 The fourth structural diagram of the steel bar connection device.

[0038] To address the aforementioned problems, this application provides a rebar connection device. The solution provided by this application will be described in detail below with reference to the accompanying drawings.

[0039] Figure 1 This is a first structural schematic diagram of a steel bar connection device provided in an embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the second structure of the steel bar connection device; Figure 3 yes Figure 1 A schematic diagram of the third structure of the steel bar connection device; Figure 4 yes Figure 1 The fourth structural diagram of the steel bar connection device.

[0040] Reference Figures 1 to 4As shown in the figure, this application provides a rebar connection device, including a mating cylinder 100, a driving assembly 300, a first mating assembly 200, a second mating assembly 400, and a mating block 500. The first mating assembly 200 is disposed on the upper part of the mating cylinder 100, and the driving assembly 300 is disposed within the mating cylinder 100. The second mating assembly 400 is connected to the movable part of the driving assembly 300, and the driving assembly 300 can drive the second mating assembly 400 to move closer to or away from the first mating assembly 200. The second mating assembly 400 is provided with a first pressing part 420 for pressing the rebar sleeve. The mating block 500 is hinged to the second mating assembly 400, and the mating block 500 can confine the rebar within the first pressing part 420. During the process of the driving assembly 300 driving the second mating assembly 400 to move towards the second mating assembly 400, the first pressing part 420 continuously presses against the rebar sleeve, causing the protruding ribs on the surface of the rebar to embed into the rebar sleeve, thus completing the connection of the two rebar sections. Since the mating block 500 is hinged to the second mating component 400, the problem of the mating block 500 needing to be repeatedly assembled and easily lost can be solved.

[0041] like Figure 1 and Figure 2 As shown, the second mating assembly 400 includes a seat 410 and a first pressing member. The seat 410 is fixedly connected to the movable part of the drive assembly 300, and the first pressing member is disposed in the seat 410. For example, the drive assembly 300 can be configured as a hydraulic cylinder. The end of the telescopic rod 310 of the hydraulic cylinder is fixedly connected to the mating cylinder 100 via a fixing member, and the cylinder body 320 of the hydraulic cylinder can move up and down along the mating cylinder 100. The second mating assembly 400 is fixedly connected to the cylinder body 320. For example, the upper end of the first pressing member has a taper, with its upper diameter larger than its lower diameter, and its lower inner diameter smaller than the outer diameter of the rebar sleeve. When the rebar sleeve is pressed through the first pressing member, the size of the rebar sleeve decreases, and the protruding ribs on the surface of the rebar are embedded in the rebar sleeve. In these examples, the telescopic rod 310 of the hydraulic cylinder is provided with an oil passage, and the hydraulic oil pipeline is connected to the injection port and outlet port at the end of the telescopic rod 310. The worker controls the extension and retraction of the telescopic rod 310 by controlling the inflow and outflow of hydraulic oil.

[0042] Understandably, when the telescopic cylinder of the driving hydraulic cylinder extends, the cylinder body 320 moves upward along the mating sleeve 100, thereby driving the second mating assembly 400 to move upward. Conversely, the cylinder body 320 drives the second mating assembly 400 to move downward. For example, the seat 410 is provided with a through hole, and the first extrusion member is mated in the through hole and fixed by a fixing bolt. Workers can replace the first extrusion member with one of different inner diameters according to the different diameters of the reinforcing bars.

[0043] In some examples, to ensure the connection strength between the cylinder body 320 and the seat 410, the seat 410 and the cylinder body 320 of the hydraulic cylinder are integrally cast; this is a custom-made component. One end of the mating block 500 is hinged to the seat 410 via a hinge shaft, meaning the mating block 500 can rotate around the shaft. The mating block 500 is provided with a second pressing part 600, which, together with the first pressing part 420, can enclose a pressing hole for pressing the rebar sleeve. Specifically, when the mating block 500 rotates around the shaft and mates with the seat 410, the second pressing part 600 on the mating block 500 can join with the first pressing part 420, thereby jointly enclosing a pressing hole, the diameter of which is smaller than the diameter of the rebar sleeve. When the rebar sleeve is pressed through this pressing hole, the protruding ribs on the surface of the rebar will be embedded into the rebar sleeve.

[0044] Alternatively, as an example, the mating block 500 can also be hinged to the base 410 via a hinge.

[0045] Continue to refer to Figure 1 and Figure 2 As shown, the first mating assembly 200 includes a fixed base 210 and a limiting block 220. The fixed base 210 is fixedly connected to the mating cylinder 100. The fixed base 210 is provided with an opening for the reinforcing bar to pass through. The limiting block 220 is hinged to the fixed base 210, and the limiting block 220 can limit the reinforcing bar to be contained in the opening. For example, in order to improve the connection strength between the fixed base 210 and the mating cylinder 100, the fixed base 210 and the mating cylinder 100 are integrally cast. The limiting block 220 is hinged to the fixed base 210 by a pivot, and the limiting block 220 can rotate around the pivot, thereby selectively sealing the opening.

[0046] Understandably, the limit block 220 can also be hinged to the fixing seat 210 via a hinge.

[0047] Continue to refer to Figure 1 and Figure 2 The limiting block 220 is provided with a first limiting hole 221, and the fixing base 210 is provided with a first through hole 211. The limiting member can pass through the first through hole 211 and extend into the first limiting hole 221 to limit the limiting block 220 on the fixing base 210, thereby preventing the reinforcing bar from slipping out of the fixing base 210. In addition, as Figure 3 As shown, the mating block 500 is provided with a second limiting hole 510, and the seat 410 is provided with a second through hole 411. The limiting member can pass through the second limiting hole 510 and extend into the second through hole 411. This allows the mating block 500 to be limited on the seat 410, and the second pressing part 600 and the first pressing part 420 cooperate together to press against the outer surface of the steel bar sleeve.

[0048] For example, the limiting element may be a limiting pin, which can be connected to the mating cylinder 100 via a connecting chain.

[0049] In some other examples, the limit block 220 is connected to the fixed base 210 via a bolt-type quick clamp.

[0050] Continue to refer to Figures 1 to 4 As shown, the rebar connection device also includes a first abutment portion 700, which is bolted to the lower surface of the fixing seat 210 and used to press against the top of the rebar sleeve, preventing it from moving when pressed by the second mating assembly 400. Additionally, the rebar connection device also includes a second abutment portion 800, which is bolted to the limiting block 220. After the limiting pin fixes the limiting block 220 to the fixing seat 210, the second abutment portion 800 can engage with the first abutment portion 700, and the two together abut against the upper end of the rebar sleeve.

[0051] like Figure 4 As shown, when connecting two sections of reinforcing bars, firstly, align the ends of the two sections and insert them into the reinforcing bar sleeve. Then, rotate and open the mating block 500 and the limiting block 220 of the reinforcing bar connecting device, moving the device to the connection point of the two sections of reinforcing bars, positioning the two ends of the reinforcing bars in the first pressing part 420 and the fixed seat 210 respectively. Next, use the limiting components to fix the mating block 500 and the limiting block 220 to the fixed seat 210. Then, align the lower end of the reinforcing bar sleeve with the pressing hole enclosed by the first pressing part 420 and the second pressing part 600, with the first abutting part 700 and the second abutting part 800 pressing against the upper end of the reinforcing bar sleeve. Next, start the drive assembly 300, causing it to drive the seat 410 towards the fixed seat 210, gradually passing the pressing hole. Once the reinforcing bar sleeve has completely passed through the pressing hole, the connection of the two sections of reinforcing bars is completed. Finally, remove all the limiting components, open the mating block 500 and the limiting block 220, and remove the rebar connection device from the two sections of rebar.

[0052] like Figure 4 As shown, a handle 900 is provided on the side of the mating cylinder 100 opposite to the fixed base 210 for easy movement of the rebar connecting device by workers. A protective shell is provided at the bottom of the mating cylinder 100. The protective shell protects the hydraulic oil connector at the connection between the hydraulic oil circuit and the telescopic rod 310, and also makes the bottom of the rebar connecting device a flat surface, making it easy to place the device on the ground.

[0053] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0054] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A reinforcing bar coupling device characterised in that, include: A mating cylinder (100) is provided with a first mating component (200) on its upper part. The drive assembly (300) is disposed in the mating cylinder (100); The second mating component (400) is connected to the movable part of the driving component (300). The driving component (300) is used to drive the second mating component (400) to move closer to or away from the first mating component (200). The second mating component (400) is provided with a first extrusion part (420) for extruding the steel bar sleeve. A mating block (500) hinged to the second mating component (400) is capable of confining the reinforcing bar within the first extrusion section (420).

2. The reinforcing bar coupling device according to claim 1, wherein The second mating assembly (400) includes a seat (410) which is fixedly connected to the movable part of the drive assembly (300), the mating block (500) is hinged to the seat (410), and the first pressing part (420) is disposed in the seat (410).

3. The steel bar connection device according to claim 2, characterized in that, The mating block (500) is provided with a second extrusion part (600), which together with the first extrusion part (420) can form an extrusion hole for extruding the steel bar sleeve.

4. The steel bar connection device according to claim 1, characterized in that, The first mating component (200) includes a fixed seat (210) and a limiting block (220). The fixed seat (210) is fixedly connected to the mating cylinder (100). The fixed seat (210) is provided with an opening for the reinforcing bar to pass through. The limiting block (220) is hinged to the fixed seat (210). The limiting block (220) can limit the reinforcing bar to be located in the opening.

5. The steel bar connection device according to claim 4, characterized in that, The limiting block (220) is provided with a first limiting hole (221), and the fixing seat (210) is provided with a first through hole (211). The limiting member passes through the first through hole (211) and extends into the first limiting hole (221) to limit the limiting block (220) on the fixing seat (210).

6. The steel bar connection device according to claim 2, characterized in that, The mating block (500) is provided with a second limiting hole (510), and the seat (410) is provided with a second through hole (411). The limiting member passes through the second limiting hole (510) and extends into the second through hole (411) so that the mating block (500) is limited to the seat (410).

7. The steel bar connection device according to claim 4, characterized in that, The rebar connection device further includes a first abutting part (700), which is disposed on the fixing seat (210) and is used to press against the top of the rebar sleeve.

8. The steel bar connection device according to claim 7, characterized in that, The rebar connection device further includes a second abutment part (800), which is disposed on the limiting block (220); the second abutment part (800) can cooperate with the first abutment part (700) and abut together on the rebar sleeve.

9. The steel bar connection device according to claim 1, characterized in that, The drive assembly (300) is configured as a hydraulic cylinder, the telescopic rod (310) of the hydraulic cylinder is fixedly connected to the mating cylinder (100), the cylinder body (320) of the hydraulic cylinder moves up and down along the mating cylinder (100), and the second mating assembly (400) is fixedly connected to the cylinder body (320).

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