Concentric positioning clamp for upper and lower steel bar joints

Abstract

The concentric positioning clamp comprises a supporting frame and a plurality of clamping assemblies, the supporting frame comprises a supporting rod, the clamping assemblies are arranged on the supporting rod in the length direction of the supporting rod, each clamping assembly comprises a clamping block and a clamping screw rod, the clamping blocks are connected to the supporting rod, and the clamping screws are connected to the supporting rod. A containing groove is formed in the side, away from the supporting rod, of the clamping block, a clamping V-shaped groove is formed in the inner wall of the containing groove, the clamping screw is in threaded connection to the clamping block, and one end of the clamping screw faces the bottom wall of the clamping V-shaped groove. The device has the effect of achieving accurate positioning and connecting of the connecting positions of the reinforcing steel bars.

Description

Technical Field

[0001] The present application relates to the technical field of steel bar processing, and in particular to a concentric positioning fixture for upper and lower steel bar joints. Background Art

[0002] Prefabricated steel structure buildings are prefabricated buildings whose building structure system is composed of steel components. Compared with prefabricated concrete building structures, prefabricated steel structure buildings have the advantages of fast installation speed, good earthquake resistance, light structure weight, low foundation cost, and green environmental protection.

[0003] At present, when connecting the prefabricated steel skeleton, several steel bars need to be connected and coordinated. However, during the hoisting and connection process of the prefabricated steel skeleton, due to certain errors in the binding, the upper and lower steel bar joints are not on the same vertical line, resulting in the upper and lower steel bars not being concentric, and the sleeve cannot be unscrewed smoothly. In addition, if the upper and lower steel bars are not connected concentrically, the structural strength of the steel skeleton will be reduced, causing certain safety hazards. Utility Model Content

[0004] In order to achieve accurate positioning connection of the steel bar connection, the present application provides a concentric positioning fixture for upper and lower steel bar joints.

[0005] The present application provides a concentric positioning fixture for upper and lower steel bar joints using the following technical solution:

[0006] A concentric positioning fixture for upper and lower steel bar joints, comprising a support frame and a clamping assembly, the support frame comprising a support rod, the clamping assembly being provided with a plurality of groups on the support rod along its length direction, the clamping assembly comprising a clamping block and a clamping screw, the clamping block being connected to the support rod, a receiving groove being provided on a side of the clamping block away from the support rod, a clamping V-shaped groove being provided on an inner wall of the receiving groove, the clamping screw being threadedly connected to the clamping block, and one end of the clamping screw being arranged toward the bottom wall of the clamping V-shaped groove.

[0007] By adopting the above technical solution, when aligning and connecting the upper and lower steel bars, the two are placed in the receiving groove of the clamping block, and the clamping screw is screwed, and the clamping screw presses the steel bar tightly. At this time, the upper and lower steel bars are located on the same vertical line, and the upper and lower steel bars are quickly positioned. Through the mutual cooperation of the support frame and the clamping assembly, the effect of accurately positioning and connecting the steel bar connection is achieved.

[0008] Optionally, two support rods are arranged in parallel, and the clamping block is connected to one side of the support rod with two adjustment sliders. The support rod is provided with an adjustment groove along its length direction, and the two adjustment sliders correspond to the two adjustment grooves one by one and are slidably connected. The adjustment slider is provided with a connecting component for position limitation.

[0009] By adopting the above technical solution, the setting of the adjusting slider realizes the sliding connection between the clamping block and the support frame, which facilitates the adjustment of the position of the clamping assembly according to the length and position of the steel bar, and expands the application range of the device.

[0010] Optionally, the connecting assembly includes a connecting wedge, a sliding rod and an adjusting rack, the adjusting rack is connected to the inner wall of the adjusting groove along the length direction of the support rod, a sliding groove is provided at the top of the adjusting slider, the sliding rod is slidably set in the sliding groove, a connecting hole connected to the sliding groove is provided on the side of the adjusting slider close to the adjusting rack, the connecting wedge is connected to the sliding rod, the connecting wedge is slidably set in the connecting hole, and when the connecting wedge slides to a certain position, the end of the connecting wedge extends out of the adjusting slider and is plugged into the adjusting rack.

[0011] By adopting the above technical solution, the adjusting slider is moved to the appropriate position of the support rod, and the sliding rod is pushed. The sliding rod drives the connecting wedge to move toward the adjusting rack and engage with it, thereby realizing the locking of the adjusting slider and the support rod.

[0012] Optionally, a connecting spring is provided in the sliding groove, one end of the connecting spring is connected to the sliding rod, and the other end is connected to the inner wall of the sliding groove, and the sliding rod abuts against the inner wall of the sliding groove close to the adjusting rack under the action of the connecting spring.

[0013] By adopting the above technical solution, when the adjusting slider is locked in position, the setting of the connecting spring enables the connecting wedge to be pressed tightly against the adjusting rack, thereby reducing the possibility of the adjusting slider being separated from the adjusting rack when locked.

[0014] Optionally, scale lines are arranged on the support rod along its vertical direction.

[0015] By adopting the above technical solution, the setting of the scale line facilitates the operator to accurately adjust the position of the clamping block.

[0016] Optionally, an installation groove is opened on the inner wall of the clamping V-groove, and an adjusting V-block is slidably connected inside the installation groove. The surface of the adjusting V-block is flush with the inner wall of the installation groove, and the adjusting screw is threadedly connected to the clamping block, and one end of the adjusting screw is rotatably connected to the adjusting V-block.

[0017] By adopting the above technical solution, when there is a difference in diameter between the upper and lower steel bars, the adjusting screw and the clamping screw are screwed at the same time, and the V-shaped block is adjusted to extend out of the installation slot, thereby achieving fine-tuning of the steel bar position so that the central axes of the upper and lower steel bars can be collinear.

[0018] Optionally, one end of the clamping screw located in the accommodating groove is rotatably connected to a clamping arc plate, the clamping arc plate is connected to a guide rod, the guide rod is arranged parallel to the clamping screw, and the guide rod is slidably connected to the clamping block.

[0019] By adopting the above technical solution, the arrangement of the clamping arc plate increases the contact area between the clamping screw and the steel bar, and improves the stability of the clamping process. The arrangement of the guide rod realizes the limit of the clamping arc plate, so that its central axis can always remain vertical.

[0020] Optionally, a bottom plate is connected to the bottom end of the support frame, a reinforced support plate is connected between the support rod and the bottom plate, and a plurality of universal wheels are arranged on the bottom plate.

[0021] By adopting the above technical solution, the setting of the strengthening support plate realizes the stable support of the support frame and improves the structural strength of the device. The setting of the universal wheel and the bottom plate facilitates the operator to push the device to a suitable position.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Through the cooperation between the support frame and the clamping assembly, the steel bar connection can be accurately positioned and connected;

[0024] 2. The setting of the scale line facilitates the operator to accurately adjust the position of the clamping block;

[0025] 3. Adjusting the setting of the V-block enables fine-tuning of the position of the steel bars so that the center axes of the upper and lower steel bars can be collinear. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of a concentric positioning fixture for upper and lower steel bar joints used in an embodiment of the present application.

[0027] Figure 2 It is a partial cross-sectional view used to illustrate the connection component in the embodiment of the present application.

[0028] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0029] Figure 4 It is a partial cross-sectional view used to illustrate the installation groove and the adjustment V-block in the embodiment of the present application.

[0030] Explanation of the reference numerals: 1. Base plate; 2. Clamping assembly; 21. Clamping block; 22. Clamping screw; 23. Clamping arc plate; 24. Guide rod; 25. Adjusting screw; 26. Adjusting V-shaped block; 27. Anti-skid pad; 28. Turning handle; 3. Connecting assembly; 31. Adjusting slider; 32. Connecting wedge block; 33. Adjusting rack; 34. Sliding rod; 35. Connecting spring; 4. Support rod; 41. Adjusting groove; 5. Connecting rod; 6. Reinforced support plate; 7. Universal wheel; 8. Handle; 9. Accommodating groove; 10. Clamping V-shaped groove; 11. Mounting groove; 12. Sliding groove; 13. Connecting hole; 14. Scale line. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 The present application is further described in detail. The present application provides a concentric positioning fixture for upper and lower steel bar joints, which has the effect of realizing accurate positioning and connection of the steel bar connection.

[0032] Reference Figure 1 A concentric positioning fixture for upper and lower steel bar joints includes a base plate 1, a support frame, a clamping assembly 2 and a connecting assembly 3. The support frame is connected to the top surface of the base plate 1, and the support frame includes a support rod 4 and a connecting rod 5. Two support rods 4 are vertically fixedly connected to the base plate 1, and a plurality of connecting rods 5 are horizontally fixedly connected between the two support rods 4. A reinforcing support plate 6 is fixedly connected between the support rods 4 and the base plate 1 to strengthen the structural strength of the support frame. A plurality of self-locking universal wheels 7 are connected to the bottom surface of the base plate 1, and a handle 8 is connected to the base plate 1.

[0033] Reference Figure 2 and Figure 3 The clamping assembly 2 is provided with several groups along the vertical direction on the support frame, and the clamping assembly 2 includes a clamping block 21, a clamping screw 22, a clamping arc plate 23, a guide rod 24, an adjusting screw 25 and an adjusting V-shaped block 26. A receiving groove 9 is provided on one side of the clamping block 21, and a clamping V-shaped groove 10 is provided on the vertical inner wall of the receiving groove 9. The clamping screw 22 is horizontally threadedly connected to the clamping block 21, and one end of the clamping screw 22 extends into the receiving groove 9 and extends toward the bottom wall of the clamping V-shaped groove 10. The clamping arc plate 23 is rotatably connected to the end of the clamping screw 22 extending into the receiving groove 9, and the central axis of the clamping arc plate 23 is vertically arranged, and an anti-slip pad 27 is fixedly connected to the inner arc wall of the clamping arc plate 23. A rotating handle 828 is fixedly connected to the end of the clamping screw 22 away from the clamping arc plate 23. The guide rod 24 is fixedly connected to the outer arc wall of the clamping arc plate 23 . The guide rod 24 is arranged parallel to the clamping screw 22 . The guide rod 24 passes through the clamping block 21 and is slidably matched therewith.

[0034] Reference Figure 2 and Figure 4The inner wall of the clamping V-shaped groove 10 is provided with a mounting groove 11, and the adjusting V-shaped block 26 is slidably arranged in the mounting groove 11, and the surface of the adjusting V-shaped block 26 is consistent with the shape of the inner wall of the mounting groove 11. The adjusting screw 25 is horizontally threadedly connected to the clamping block 21, and one end of the adjusting screw 25 extends into the mounting groove 11 and is rotatably connected to the adjusting V-shaped block 26.

[0035] Reference Figure 3 The connection assembly 3 includes an adjustment slider 31, a connection wedge block 32, an adjustment rack 33, a sliding rod 34 and a connection spring 35. Two adjustment sliders 31 are fixedly connected to the side of the clamping block 21 close to the support rod 4. Each support rod 4 is provided with an adjustment groove 41 along its length direction on the side close to the clamping block 21, and the top of the adjustment groove 41 extends to the top of the support rod 4. A scale line 14 is provided on the support rod 4 along the vertical direction. The two adjustment sliders 31 are arranged in a one-to-one correspondence with the two adjustment grooves 41. The adjustment slider 31 is a dovetail block, and the adjustment groove 41 is a dovetail groove. The adjustment slider 31 is slidably arranged in the adjustment groove 41. The adjustment rack 33 is fixedly connected to the inner wall of the adjustment groove 41 along the length direction of the adjustment groove 41. The top surface of the adjustment slider 31 is provided with a sliding groove 12, and the sliding rod 34 is vertically arranged in the sliding groove 12 and slides with it. A connecting hole 13 is provided on one side of the adjusting slider 31 near the adjusting rack 33, and the connecting hole 13 is vertically connected to the sliding groove 12. A connecting wedge 32 is vertically fixedly connected to the bottom end of the sliding rod 34, and the connecting wedge 32 is slidably connected to the connecting hole 13. A connecting spring 35 is arranged in the sliding groove 12 along the length direction thereof, and one end of the connecting spring 35 is connected to the sliding rod 34, and the other end is fixedly connected to the inner wall of the sliding groove 12 away from the adjusting slider 31. Under the action of the connecting spring 35, the sliding rod 34 abuts against the inner wall of the sliding groove 12 near the adjusting rack 33, and the end of the connecting wedge 32 extends out of the clamping block 21 under the action of the connecting spring 35.

[0036] Reference Figure 2 When aligning and connecting the upper and lower steel bars, place both of them in the receiving groove 9 of the clamping block 21, and screw the corresponding clamping screw 22. The clamping arc plate 23 is driven by the clamping screw 22 and guided by the guide rod 24, and continuously approaches the steel bar until the clamping arc plate 23 presses the steel bar tightly. The steel bar is stably fixed in the clamping V-shaped groove 10 by the clamping arc plate 23. At this time, the upper and lower steel bars are located on the same vertical line.

[0037] Reference Figure 2 and Figure 3, push the sliding rod 34 in the direction away from the adjusting rack 33, the connecting spring 35 shortens to accumulate elastic potential energy, the connecting wedge 32 retracts into the connecting hole 13, and the connecting wedge 32 is separated from the adjusting rack 33. Move the corresponding clamping block 21 up and down, the clamping block 21 moves along the vertical direction, and the adjusting slider 31 slides in the adjusting groove 41. The setting of the scale line 14 facilitates the operator to accurately adjust the position of the clamping block 21. When the upper and lower steel bars move to the end part contact with the clamping block 21 connected thereto, the sleeve is connected to the outside of the joint of the upper and lower steel bars, realizing a stable coaxial connection between the two.

[0038] Reference Figure 2 and Figure 4 When the diameters of the upper and lower steel bars are different, if both steel bars are fixedly connected in the clamping V-shaped groove 10, the central axes of the two will be slightly misaligned. At this time, it is necessary to screw the corresponding adjustment screw 25 and the clamping screw 22 so that the adjustment V-shaped block 26 extends out of the installation groove 11, thereby achieving precise adjustment of the steel bar position so that the central axes of the upper and lower steel bars can be kept coincident. The setting of the handle 8 and the universal wheel 7 facilitates the operator to move the entire device to a suitable position and facilitates the connection of the steel bars.

[0039] The implementation principle of a concentric positioning fixture for the upper and lower steel bar joints in the embodiment of the present application is as follows: when aligning and connecting the upper and lower steel bars, place the two in the receiving groove 9 of the clamping block 21, screw the corresponding clamping screw 22, and the steel bar is stably fixed in the clamping V-shaped groove 10 by the clamping arc plate 23, and the upper and lower steel bars are located on the same vertical line. Move the corresponding clamping block 21 up and down, and when the upper and lower steel bars move to the end portion contact, connect the sleeve to the outside of the joint of the upper and lower steel bars to achieve a stable coaxial connection between the two. When the diameters of the upper and lower steel bars are different, screw the corresponding adjusting screw 25 and the clamping screw 22 so that the adjusting V-shaped block 26 extends out of the installation groove 11, thereby achieving precise adjustment of the position of the steel bar.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concentric positioning fixture for upper and lower steel bar joints, characterized in that: The invention comprises a support frame and a clamping assembly (2), wherein the support frame comprises a support rod (4), the clamping assembly (2) is provided with a plurality of groups on the support rod (4) along its length direction, the clamping assembly (2) comprises a clamping block (21) and a clamping screw (22), the clamping block (21) is connected to the support rod (4), a receiving groove (9) is provided on a side of the clamping block (21) away from the support rod (4), a clamping V-shaped groove (10) is provided on the inner wall of the receiving groove (9), the clamping screw (22) is threadedly connected to the clamping block (21), and one end of the clamping screw (22) is arranged toward the bottom wall of the clamping V-shaped groove (10).

2. The concentric positioning fixture for upper and lower steel bar joints according to claim 1, characterized in that: Two support rods (4) are arranged in parallel, and two adjusting sliders (31) are connected to one side of the clamping block (21) facing the support rod (4). An adjusting groove (41) is provided on the support rod (4) along its length direction. The two adjusting sliders (31) correspond to the two adjusting grooves (41) one by one and are slidably connected. A connecting component (3) for position limitation is provided on the adjusting slider (31).

3. The concentric positioning fixture for upper and lower steel bar joints according to claim 2, characterized in that: The connecting assembly (3) comprises a connecting wedge (32), a sliding rod (34) and an adjusting rack (33); the adjusting rack (33) is connected to the inner wall of the adjusting groove (41) along the length direction of the supporting rod (4); a sliding groove (12) is provided at the top of the adjusting slider (31); the sliding rod (34) is slidably arranged in the sliding groove (12); a connecting hole (13) connected to the sliding groove (12) is provided on a side of the adjusting slider (31) close to the adjusting rack (33); the connecting wedge (32) is connected to the sliding rod (34); the connecting wedge (32) is slidably arranged in the connecting hole (13); when the connecting wedge (32) slides to a certain position, the end of the connecting wedge (32) extends out of the adjusting slider (31) and is plugged into the adjusting rack (33).

4. The concentric positioning fixture for upper and lower steel bar joints according to claim 3 is characterized in that: A connecting spring (35) is provided in the sliding groove (12), one end of the connecting spring (35) is connected to the sliding rod (34), and the other end is connected to the inner wall of the sliding groove (12); under the action of the connecting spring (35), the sliding rod (34) abuts against the inner wall of the sliding groove (12) close to the adjusting rack (33).

5. The concentric positioning fixture for upper and lower steel bar joints according to claim 2, characterized in that: The support rod (4) is provided with scale lines (14) along its vertical direction.

6. The concentric positioning fixture for upper and lower steel bar joints according to claim 1, characterized in that: A mounting groove (11) is provided on the inner wall of the clamping V-shaped groove (10), an adjusting V-shaped block (26) is slidably connected inside the mounting groove (11), and a surface of the adjusting V-shaped block (26) is flush with the inner wall of the mounting groove (11).

7. The concentric positioning fixture for upper and lower steel bar joints according to claim 1, characterized in that: One end of the clamping screw (22) located in the accommodating groove (9) is rotatably connected to a clamping arc plate (23), and a guide rod (24) is connected to the clamping arc plate (23). The guide rod (24) is arranged parallel to the clamping screw (22), and the guide rod (24) is slidably connected to the clamping block (21).

8. The concentric positioning fixture for upper and lower steel bar joints according to claim 1, characterized in that: The bottom end of the support frame is connected to a bottom plate (1), a reinforcing support plate (6) is connected between the support rod (4) and the bottom plate (1), and a plurality of universal wheels (7) are arranged on the bottom plate (1).

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