A steel bar connection device and use method

Abstract

The present invention discloses a steel bar connection device and a method of use, which relates to the technical field of construction engineering tools, and includes: a central axis, a tightening sleeve, an outer sleeve and an inner sleeve. The central axis includes: a central axis gear portion and a shaft portion, the tightening sleeve is sleeved on the outer side of the central axis gear portion, and both sides of the central axis gear portion are connected to an outer sleeve respectively, the two outer sleeves are symmetrically arranged, and the two inner sleeves are symmetrically arranged on both sides of the central axis gear portion, each inner sleeve is arranged in an outer sleeve, and each inner sleeve is provided with a through hole, which matches the shaft portion. The present invention can connect the steel bars at both ends separately, while ensuring the strength of the connection, and can be applicable to the connection between steel bars and steel bar connection devices in different states.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering tools, and in particular to a steel bar connecting device and a use method thereof. Background Art

[0002] In the field of construction engineering, it is often necessary to connect steel bars to form a certain structure. Steel bar connection refers to the connection method of steel bars. There are four main connection methods of steel bars: binding lap joint, mechanical connection, sleeve grouting connection and welding. The joint should be set at the place with less stress as much as possible, and should avoid the key parts of the structure with greater stress. During on-site construction, the threads on the steel bars need to be temporarily processed and the processing is relatively rough. There will be a situation where both steel bars to be connected cannot rotate. In addition, due to the errors in steel bar cutting and construction, a gap is formed at the ends of the two connected steel bars and cannot be closed together. In addition, the axes of the two steel bars to be connected are usually not in the same straight line. In this case, the use of straight thread sleeves of standard type, positive and negative type, and extended thread head type cannot achieve effective connection, that is, it is impossible to ensure the effective thread length when the sleeve is connected, or it is impossible to achieve the effective tensioning of the end faces of the two steel bars after connection, thereby affecting the connection strength of the joint and reducing the qualified rate of the finished product. It is common that the steel bars cannot be effectively connected under the conditions of overall docking of steel cages and steel mesh or "post-casting belt" in structural construction. Summary of the invention

[0003] In view of the above-mentioned problems, an object of the present invention is to provide a steel bar connection device and a method of use.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A steel bar connection device, comprising:

[0006] A sleeve mechanism, wherein the inner surface of the sleeve mechanism is provided with an internal thread for connecting the ends of two steel bars, wherein the outer surface of the ends of the steel bars is provided with an external thread matching the internal thread;

[0007] A fixing mechanism, the fixing mechanism being operably fixedly connected to the steel bar;

[0008] A transmission mechanism, wherein the transmission mechanism has an input end and an output end, and the output end is fixedly connected to the fixing mechanism;

[0009] A driving mechanism, wherein a driving portion of the driving mechanism is rotatably connected to the input end and is used to drive the steel bar to rotate.

[0010] The above-mentioned steel bar connecting device, among others, also includes a steel bar support, which includes: two A-frames arranged opposite to each other, a crossbeam connecting the upper ends of the two A-frames, and a hook rotatably connected to the crossbeam, wherein the steel bar is operably mounted on the hook.

[0011] The above-mentioned steel bar connecting device, wherein the hook comprises: a cylindrical structure and a hook structure, the cylindrical structure is sleeved on the cross beam, the cylindrical structure is rotatably connected to the cross beam, and the upper end of the hook structure is fixedly connected to the cylindrical structure.

[0012] The above-mentioned steel bar connection device, wherein, further comprises a driving bracket, wherein the driving bracket comprises: an upper panel, a lower panel, and a column connecting the upper panel and the lower panel, wherein the driving mechanism is fixedly arranged on the upper surface of the lower panel;

[0013] A more preferred feature is that a plurality of universal wheels are also provided on the lower surface of the lower panel.

[0014] The above-mentioned steel bar connection device, wherein, further comprises:

[0015] An input mechanism, the input mechanism is used to input instructions;

[0016] A control mechanism, the control mechanism is connected to the input mechanism by signal so as to receive instructions from the input mechanism, and the control mechanism is connected to the drive mechanism by signal so as to send instructions to the drive mechanism;

[0017] A display, the display is connected to the control mechanism signal and is used to display the status, wherein the status includes the command name input by the input mechanism, the current rotation speed of the drive mechanism, and the number of rotations of the drive mechanism.

[0018] A more preferred feature is that the display is a liquid crystal display, and the liquid crystal display is arranged on the upper surface of the upper panel of the driving bracket.

[0019] A more preferred feature is that the input mechanism is a plurality of buttons, the input mechanism is disposed on the upper surface of the upper panel of the driving bracket, and the buttons are located on one side of the liquid crystal display.

[0020] A more preferred feature is that the control mechanism is fixedly arranged on the upper surface of the lower panel of the driving bracket.

[0021] The above-mentioned steel bar connecting device, wherein the sleeve mechanism comprises:

[0022] A central shaft, the central shaft comprising a central shaft gear portion and two shaft portions respectively arranged on both sides of the central shaft gear portion;

[0023] A tightening sleeve, wherein the tightening sleeve is sleeved on the outer side of the middle shaft gear portion;

[0024] An outer sleeve, one outer sleeve is connected to each side of the middle shaft gear portion, and the two outer sleeves are symmetrically arranged;

[0025] An inner sleeve, one inner sleeve is arranged on each side of the middle shaft gear portion, the two inner sleeves are symmetrically arranged, each inner sleeve is arranged inside an outer sleeve, each inner sleeve is provided with a through hole, and each shaft portion is arranged in the through hole of an inner sleeve

[0026] In the above-mentioned steel bar connecting device, circular grooves are provided on both sides of the tightening sleeve, the circular grooves match the outer sleeve, and the outer sleeve can be operably rotated inside the circular grooves.

[0027] The above-mentioned steel bar connecting device, wherein a first internal thread is provided on the inner wall of the outer sleeve.

[0028] In the above-mentioned steel bar connecting device, a first external thread is provided on the outer wall of the inner sleeve, the first external thread matches the first internal thread, and the internal thread is provided on the inner wall of the inner sleeve.

[0029] In the above-mentioned steel bar connecting device, the inner wall of the tightening sleeve is provided with a sleeve gear portion, and the sleeve gear portion matches the middle shaft gear portion.

[0030] In the above-mentioned steel bar connecting device, the outer wall of the outer sleeve is provided with a rib-shaped protrusion extending along the axial direction of the outer sleeve.

[0031] In the above-mentioned steel bar connecting device, circular limiting plates are provided at both ends of the shaft.

[0032] A method for using a steel bar connection device, wherein the method is applicable to any one of the steel bar connection devices described above, and the method comprises:

[0033] A1: Hold the sleeve mechanism, place one end of the sleeve mechanism on one end of a steel bar, and rotate the sleeve mechanism so that the internal thread of the sleeve mechanism engages with the external thread of one end of the steel bar;

[0034] A2: Place one end of another steel bar against the other end of the sleeve mechanism;

[0035] A3: The fixing mechanism is fixedly connected to the other end of the other steel bar, and the driving mechanism is started to drive the other steel bar to rotate, so that the internal thread of the sleeve mechanism is engaged with the external thread of one end of the other steel bar.

[0036] A method for using a steel bar connection device, wherein the method is applicable to any one of the steel bar connection devices described above, and the method comprises:

[0037] B1: placing a steel bar on one side of the sleeve mechanism, and pressing the outer thread of the steel bar against the outer edge of one of the inner sleeves of the sleeve mechanism;

[0038] B2: The outer sleeve of the sleeve mechanism abutting against the outer thread is fixed, and the tightening sleeve is rotated. The tightening sleeve drives the inner sleeve to rotate through the central axis. At the same time, the tightening sleeve drives the inner sleeve to move axially through the first inner thread on the outer sleeve.

[0039] B3: Rotate the tightening sleeve and / or rotate the outer sleeve until the relative axial position of the inner sleeve and the steel bar does not change;

[0040] B4: Repeat steps B1 to B3 to connect another steel bar to another inner sleeve of the sleeve mechanism.

[0041] Due to the adoption of the above technology, the present invention has the following positive effects compared with the prior art:

[0042] The present invention can connect two independent steel bars while ensuring the strength of the connection. Even if the steel bars on both sides rotate relatively, they will not loosen after the connection is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a structural schematic diagram of a sleeve mechanism of a steel bar connecting device of the present invention.

[0044] Figure 2 It is a front view of a sleeve mechanism of a steel bar connecting device of the present invention.

[0045] Figure 3 It is a left side view of a sleeve mechanism of a steel bar connecting device of the present invention.

[0046] Figure 4 It is a reference diagram of the use status of a sleeve mechanism of a steel bar connecting device of the present invention.

[0047] Figure 5 It is a structural schematic diagram of a steel bar connecting device of the present invention.

[0048] Figure 6 It is a schematic diagram of a steel bar support of a steel bar connection device of the present invention.

[0049] Figure 7 It is a structural block diagram of a steel bar connection device of the present invention.

[0050] In the accompanying drawings: 10, sleeve mechanism; 20, fixing mechanism; 30, transmission mechanism; 40, driving mechanism; 1, central axis; 2, tightening sleeve; 3, outer sleeve; 4, inner sleeve; 5, central axis gear portion; 6, shaft portion; 7, steel bar support; 71, A-frame; 72, crossbeam; 73, tubular structure; 74, hook-shaped structure; 8, driving support; 81, upper panel; 82, lower panel; 83, column; 91, liquid crystal display; 92, button. DETAILED DESCRIPTION

[0051] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0052] Figure 1 It is a structural schematic diagram of a sleeve mechanism of a steel bar connecting device of the present invention. Figure 2 This is a front view of a sleeve mechanism of a steel bar connection device of the present invention. Figure 3 It is a left side view of a sleeve mechanism of a steel bar connection device of the present invention. Figure 4 This is a reference diagram of the use state of a sleeve mechanism of a steel bar connection device of the present invention. Figure 5 is a structural schematic diagram of a steel bar connection device of the present invention, Figure 6 is a schematic diagram of a steel bar support of a steel bar connection device of the present invention, Figure 7 The two sides of the present invention specifically refer to Figure 1 The left and right sides of the present invention specifically refer to Figure 1 The above directions are only used to assist in explaining the relative positional relationship between the components and do not constitute a limitation on the components.

[0053] Please refer to Figures 1 to 7 As shown, a preferred steel bar connecting device is shown, which includes: a sleeve mechanism 10, a fixing mechanism 20, a transmission mechanism 30, and a driving mechanism 40, wherein the inner surface of the sleeve mechanism 10 has an internal thread for connecting the ends of two steel bars, wherein the outer surface of the end of the steel bar has an external thread matching the internal thread; the fixing mechanism 20 is operably fixedly connected to the steel bar; the transmission mechanism 30 has an input end and an output end, and the output end is fixedly connected to the fixing mechanism 20; the driving part of the driving mechanism 40 is rotatably connected to the input end, for driving the steel bar to rotate.

[0054] Preferably, see Figure 5 As shown, the transmission mechanism 30 is a connecting rod, which can be an eccentrically arranged connecting rod; the driving mechanism 40 is preferably a motor.

[0055] Furthermore, in a preferred embodiment, it also includes a steel bar support 7, which includes: two A-frames 71 arranged opposite to each other, a crossbeam 72 connecting the upper ends of the two A-frames 71, and a hook rotatably connected to the crossbeam 72, wherein the steel bar is operably mounted on the hook.

[0056] Furthermore, in a preferred embodiment, the hook includes: a cylindrical structure 73 and a hook structure 74 , the cylindrical structure 73 is sleeved on the cross beam 72 , the cylindrical structure 73 is rotatably connected to the cross beam 72 , and the upper end of the hook structure 74 is fixedly connected to the cylindrical structure 73 .

[0057] Furthermore, in a preferred embodiment, a driving bracket 8 is further included, and the driving bracket 8 includes: an upper panel 81, a lower panel 82, and a column 83 connecting the upper panel 81 and the lower panel 82, wherein the driving mechanism 40 is fixedly disposed on the upper surface of the lower panel 82;

[0058] More preferably, the lower surface of the lower panel 82 is also provided with a plurality of universal wheels.

[0059] Furthermore, in a preferred embodiment, it also includes: an input mechanism, the input mechanism is used to input instructions.

[0060] Furthermore, in a preferred embodiment, it also includes: a control mechanism, the control mechanism is connected to the input mechanism signal for receiving instructions from the input mechanism, and the control mechanism is connected to the drive mechanism signal for sending instructions to the drive mechanism.

[0061] Furthermore, in a preferred embodiment, it also includes: a display, which is connected to the control mechanism signal and is used to display the status, and the status includes the command name input by the input mechanism, the current rotation speed of the driving mechanism, and the number of rotations of the driving mechanism.

[0062] More preferably, the display is a liquid crystal display 91 , and the liquid crystal display 91 is disposed on the upper surface of the upper panel 81 of the driving bracket 8 .

[0063] More preferably, the input mechanism is a plurality of buttons 92 , which are disposed on the upper surface of the upper panel 81 of the driving bracket 8 , and the buttons 92 are located on one side of the liquid crystal display 91 .

[0064] More preferably, the control mechanism is fixedly disposed on the upper surface of the lower panel 82 of the driving bracket 8 .

[0065] Further, in a preferred embodiment, the sleeve mechanism includes: a central axis 1, a tightening sleeve 2, an outer sleeve 3 and an inner sleeve 4. Among them, the central axis 1 includes: a central axis gear portion 5 and shaft portions 6 arranged on both sides of the central axis gear portion 5, the shaft portion 6 is fixedly connected to the central axis gear portion 5, the tightening sleeve 2 is sleeved on the outside of the gear portion 5, the tightening sleeve 2 is meshed with the gear portion 5, and the gear portion 5 is driven by rotating the tightening sleeve 2, an outer sleeve 3 is arranged on each side of the tightening sleeve 2, both outer sleeves 3 are rotatably connected to the tightening sleeve 2, and the end face of the outer sleeve 3 is always against the tightening sleeve 2.

[0066] Further, in a preferred embodiment, a limiting mechanism is provided between the outer sleeve 3 and the tightening sleeve 2, and the limiting mechanism limits the axial direction (i.e. Figure 1 The outer sleeve 3 and the inner sleeve 2 are symmetrically arranged on both sides of the middle shaft gear portion 5, and each inner sleeve 4 is arranged in an outer sleeve 3. Each inner sleeve 4 is provided with a through hole, and the through hole matches the shaft portion 6.

[0067] Furthermore, in a preferred embodiment, circular grooves are provided on both sides of the tightening sleeve 2 along the axial direction thereof, and the shape of the circular grooves matches the shape of the outer sleeve 3 .

[0068] Further, in a preferred embodiment, the inner wall of the circular groove is provided with a first annular groove, the outer wall of the outer sleeve 3 is provided with a second annular groove, the first annular groove and the second annular groove are surrounded to form an annular cavity, and an annular structure is provided in the annular cavity, and the axial direction (i.e., the rotation of the outer sleeve 3 and the tightening sleeve 2) between the outer sleeve 3 and the tightening sleeve 2 is limited by the annular structure. Figure 1 The horizontal direction in the middle) does not limit the displacement of the outer sleeve 3 and the rotation around the axial direction before tightening the sleeve 2.

[0069] Further, in a preferred embodiment, the outer sleeve 3 is operable to rotate in the circular groove.

[0070] Furthermore, in a preferred embodiment, a first internal thread is provided on the inner wall of the outer sleeve 3 .

[0071] Furthermore, in a preferred embodiment, a first external thread is provided on the outer wall of the inner sleeve 4 , the first external thread matches the first internal thread, and the inner wall of the inner sleeve 4 is provided with the above-mentioned internal thread.

[0072] Further, in a preferred embodiment, a sleeve gear portion is provided on the inner wall of the tightening sleeve 2. Preferably, the outer edge of the tightening sleeve 2 is hexagonal to facilitate gripping.

[0073] Further, in a preferred embodiment, the sleeve gear portion matches the middle shaft gear portion 5 .

[0074] Furthermore, in a preferred embodiment, the outer wall of the outer sleeve 3 is provided with a rib-shaped protrusion extending along the axial direction of the outer sleeve 3 .

[0075] Furthermore, in a preferred embodiment, circular limiting pieces are provided at both ends of the shaft portion 6 .

[0076] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation and protection scope of the present invention.

[0077] The present invention also has the following implementation modes based on the above:

[0078] In a further embodiment of the present invention, a threaded connection is adopted between the inner sleeve 4 and the outer sleeve 3 , and the inner sleeve 4 can be placed in an initial position tightly attached to the central axis 1 by rotating the outer sleeve 3 .

[0079] In a further embodiment of the present invention, a threaded connection is adopted between the inner sleeve 4 and the outer sleeve 3. After the steel bar connecting device and the steel bar are installed, the outer sleeve 3 can be rotated to detect whether the steel bar connecting device and the steel bar are installed in the tightest position.

[0080] In a further embodiment of the present invention, the two outer sleeves 3 can be respectively operated to rotate in the circular grooves on both sides of the tightening sleeve 2, and the above-mentioned limiting mechanism is arranged in the circular groove to fix the tightening sleeve 2 to prevent axial and radial displacement between the tightening sleeve 2 and the circular groove.

[0081] In a preferred embodiment, the above-mentioned limiting device includes the above-mentioned first annular groove, second annular groove and annular structure.

[0082] In a preferred embodiment, the first annular groove is opened on the side wall of the circular groove.

[0083] In a further embodiment of the present invention, after the steel bar connecting device is connected to the steel bar, the connection between the tightening sleeve 2 and the outer sleeve 3 can be welded to prevent relative rotation between the tightening sleeve 2 and the outer sleeve 3, thereby further enhancing the connection strength.

[0084] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel bar connection device, characterized in that: include: A sleeve mechanism, wherein the inner surface of the sleeve mechanism is provided with an internal thread for connecting the ends of two steel bars, wherein the outer surface of the ends of the steel bars is provided with an external thread matching the internal thread; A fixing mechanism, the fixing mechanism being operably fixedly connected to the steel bar; A transmission mechanism, wherein the transmission mechanism has an input end and an output end, and the output end is fixedly connected to the fixing mechanism; A driving mechanism, wherein a driving portion of the driving mechanism is rotatably connected to the input end and is used to drive the steel bar to rotate; The sleeve mechanism comprises: A central shaft, the central shaft comprising a central shaft gear portion and two shaft portions respectively arranged on both sides of the central shaft gear portion, the shaft portions being fixedly connected to the central shaft gear portion; A tightening sleeve, the tightening sleeve is sleeved on the outer side of the middle shaft gear portion, and the tightening sleeve is meshed with the middle shaft gear portion; An outer sleeve, one outer sleeve is connected to each side of the middle shaft gear portion, and both outer sleeves are rotatably connected to the tightening sleeve; An inner sleeve, one inner sleeve is disposed on each side of the middle shaft gear portion, each inner sleeve is disposed inside an outer sleeve, each inner sleeve is provided with a through hole, and each shaft portion is disposed in the through hole of an inner sleeve; The inner wall of the outer sleeve is provided with a first internal thread, the outer wall of the inner sleeve is provided with a first external thread, the first external thread matches the first internal thread, and the inner wall of the inner sleeve is provided with the internal thread; The inner wall of the tightening sleeve is provided with a sleeve gear portion, and the sleeve gear portion matches the middle shaft gear portion; The tightening sleeve drives the inner sleeve to rotate through the central shaft.

2. The steel bar connection device according to claim 1, characterized in that: It also includes a steel bar support, which includes: two A-frames arranged opposite to each other, a crossbeam connecting the upper ends of the two A-frames, and a hook rotatably connected to the crossbeam, wherein the steel bar is operably mounted on the hook.

3. The steel bar connection device according to claim 2, characterized in that: The hook comprises: a cylindrical structure and a hook structure, the cylindrical structure is sleeved on the cross beam, the cylindrical structure is rotatably connected to the cross beam, and the upper end of the hook structure is fixedly connected to the cylindrical structure.

4. The steel bar connection device according to claim 1, characterized in that: It also includes a driving bracket, which includes: an upper panel, a lower panel, and a column connecting the upper panel and the lower panel, wherein the driving mechanism is fixedly arranged on the upper surface of the lower panel; The lower surface of the lower panel is also provided with a plurality of universal wheels.

5. The steel bar connection device according to claim 1, characterized in that: Also includes: An input mechanism, the input mechanism is used to input instructions; A control mechanism, the control mechanism is connected to the input mechanism by signal so as to receive instructions from the input mechanism, and the control mechanism is connected to the drive mechanism by signal so as to send instructions to the drive mechanism; A display, the display is connected to the control mechanism signal and is used to display the status, wherein the status includes the command name input by the input mechanism, the current rotation speed of the drive mechanism, and the number of rotations of the drive mechanism.

6. The steel bar connection device according to claim 1, characterized in that: The two outer sleeves are symmetrically arranged; The two inner sleeves are symmetrically arranged.

7. The steel bar connection device according to claim 6, characterized in that: Circular grooves are provided on both sides of the tightening sleeve, and the circular grooves match the outer sleeve. The outer sleeve can be operably rotated inside the circular grooves.

8. The steel bar connection device according to claim 6, characterized in that: The outer wall of the outer sleeve is provided with a rib-shaped protrusion extending along the axial direction of the outer sleeve; Circular limiting pieces are provided at both ends of the shaft.

9. A method for using a steel bar connection device, characterized in that: The steel bar connection device according to any one of claims 1 to 8, wherein the method of use comprises: A1: Hold the sleeve mechanism, place one end of the sleeve mechanism on one end of a steel bar, and rotate the sleeve mechanism so that the internal thread of the sleeve mechanism engages with the external thread of one end of the steel bar; A2: Place one end of another steel bar against the other end of the sleeve mechanism; A3: The fixing mechanism is fixedly connected to the other end of the other steel bar, and the driving mechanism is started to drive the other steel bar to rotate, so that the internal thread of the sleeve mechanism is engaged with the external thread of one end of the other steel bar.

10. A method for using a steel bar connection device, characterized in that: The steel bar connection device according to any one of claims 6 to 8, wherein the method of use comprises: B1: placing a steel bar on one side of the sleeve mechanism, and pressing the outer thread of the steel bar against the outer edge of one of the inner sleeves of the sleeve mechanism; B2: The outer sleeve of the sleeve mechanism abutting against the outer thread is fixed, and the tightening sleeve is rotated. The tightening sleeve drives the inner sleeve to rotate through the central axis. At the same time, the tightening sleeve drives the inner sleeve to move axially through the first inner thread on the outer sleeve. B3: Rotate the tightening sleeve and / or rotate the outer sleeve until the relative axial position of the inner sleeve and the steel bar does not change; B4: Repeat steps B1 to B3 to connect another steel bar to another inner sleeve of the sleeve mechanism.

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