Prestressed steel wire tensioning machine

Abstract

The prestressed steel wire tensioning machine comprises a center machine body, two supports are welded to one side of the center machine body, arc-shaped guide plates are welded to the ends of the two supports, and sector plates are welded to the two sides of the front portion of the top of each arc-shaped guide plate. A guide wheel is arranged between the two sector plates, a fixed shaft is welded in the guide wheel, an anti-skid ring is bonded to the outer wall of the guide wheel, a plurality of anti-skid raised heads are arranged on the outer wall of the anti-skid ring, a hand-cranking arm is welded to one end of the fixed shaft, and a control handle is welded to the front side of the end, away from the fixed shaft, of the hand-cranking arm. Through the arrangement of the storage rod, the folding seat, the folding plate, the iron supporting rod and other structures, the whole device can be stored and folded, the occupied space of the device when the device is not used is reduced, and the device is convenient to carry, convenient to use and beneficial to application and popularization.

Description

Technical Field

[0001] The present invention relates to the technical field of steel wire tensioning machines, and more particularly to a prestressed steel wire tensioning machine. Background Art

[0002] Prestressed steel wire tensioning machine is a special equipment used to tension prestressed steel wire. It plays an important role in construction. Prestressed steel wire tensioning machine can be divided into many types according to its structure and working principle, such as electric screw tensioning machine, electric winch tensioning machine, hydraulic tensioning machine, etc. The working principles of these devices are different, but they all generate tension in some way to tension the prestressed steel wire to a predetermined stress level.

[0003] Although the prestressed steel wire tensioning machine in the prior art can be used normally, it still has many disadvantages in actual use. For example, the prestressed steel wire tensioning machine in the prior art is not portable enough, the overall size of the equipment is large and cannot be folded, which makes the actual use effect of the prestressed steel wire tensioning machine in the prior art not good enough and is not conducive to promotion and use. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a prestressed steel wire tensioning machine. By providing structures such as a storage rod, a folding seat, a folding plate and an iron support rod, the present invention can store and fold the device as a whole, thereby reducing the space occupied by the device when it is idle. It is easy to carry and convenient to use, which is conducive to promotion and use, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a prestressed steel wire tensioning machine, comprising a central body, two brackets are welded on one side of the central body, arc-shaped guide plates are welded on the ends of the two brackets, fan-shaped plates are welded on both sides of the top front of the arc-shaped guide plate, a guide wheel is arranged between the two fan-shaped plates, a fixed shaft is welded inside the guide wheel, an anti-skid ring is bonded on the outer wall of the guide wheel, a plurality of anti-skid protrusions are arranged on the outer wall of the anti-skid ring, a hand crank arm is welded on one end of the fixed shaft, a control handle is welded on the front side of the end of the hand crank arm away from the fixed shaft, a screw hole is penetrated at the bottom of the arc-shaped guide plate, a wire locking bolt is penetrated inside the screw hole, an upper feed groove and a lower feed groove are arranged inside the side of the central body close to the bracket, a side of the upper feed groove away from the lower feed groove and a side of the lower feed groove away from the upper feed groove are both provided with limiting grooves, and storage rods are arranged inside the upper feed groove and the lower feed groove. A limit block is welded on one side of the bottom end of the storage rod, and limit holes are provided on the front sides of both ends of the two storage rods. A retraction limit bolt and an extension limit bolt are provided on the top and bottom of the front side of the central body. A hydraulic cylinder fixing frame is welded on the end of the storage rod away from the central body, and a hydraulic cylinder is fixedly installed inside the hydraulic cylinder fixing frame. A folding seat is welded on the end of the hydraulic cylinder output shaft, and a limited support is welded on the front side of the folding seat. A magnet block is bonded on the front side of the limited support. A folding plate is provided on one side of the limited support, and a hinge shaft is provided on the front side between the folding plate and the folding seat. An iron support rod is welded on one side of the folding plate, and a support seat is welded on the end of the iron support rod away from the folding plate. A movable support rod is hinged on the outer wall of one side of the hydraulic cylinder fixing frame close to the central body, and an abutment plate is welded on the end of the movable support rod close to the central body, and a fixing bolt is penetrated through the abutment plate.

[0006] In a preferred embodiment, both ends of the fixed shaft are rotatably connected to two sector plates respectively, and a plurality of the anti-slip protrusions are evenly distributed in a ring shape on the outer wall of the anti-slip ring in groups of two.

[0007] In a preferred embodiment, the wire locking bolt is threadedly connected to the screw hole, and the hydraulic cylinder output shaft is transmission-connected to the folding seat.

[0008] In a preferred embodiment, the two storage rods are slidably connected to the upper feed slot and the lower feed slot respectively, and the retraction limit bolt and the extension limit bolt are threadedly connected to the central body.

[0009] In a preferred embodiment, the limiting block is arranged inside the limiting groove at the corresponding position, and the limiting block is slidably connected to the limiting groove at the corresponding position.

[0010] In a preferred embodiment, the retraction limit bolt at the top and the extension limit bolt at the bottom are symmetrically arranged on the front side of the central body, and the retraction limit bolt at the bottom and the extension limit bolt at the top are symmetrically arranged on the front side of the central body.

[0011] In a preferred embodiment, the hydraulic cylinder output shaft passes through one end of the hydraulic cylinder fixing frame and extends to the outside of the hydraulic cylinder fixing frame.

[0012] In a preferred embodiment, the folding plate is hinged to the folding seat via a hinge shaft, and the fixing bolt is threadedly connected to the central body.

[0013] Technical effects and advantages of the present invention: The present invention is provided with structures such as a storage rod, a folding seat, a folding plate and an iron support rod, so that the device can be stored and folded as a whole, which reduces the space occupied by the device when it is idle, is easy to carry, and is also convenient to use, which is conducive to promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure of part A in the middle.

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the central body of the present invention.

[0017] Figure 4 It is a schematic diagram of the front view structure of the fan-shaped plate of the present invention.

[0018] Figure 5 It is a schematic diagram of the top view of the structure of the hydraulic cylinder fixing bracket of the present invention.

[0019] The accompanying drawings are marked as follows: 1. central body; 2. bracket; 3. arc-shaped guide plate; 4. fan-shaped plate; 5. guide wheel; 6. fixed shaft; 7. anti-skid ring; 8. anti-skid boss; 9. control handle; 10. wire locking bolt; 11. upper feed groove; 12. lower feed groove; 13. limit groove; 14. storage rod; 15. limit block; 16. limit hole; 17. retract limit bolt; 18. extend limit bolt; 19. hydraulic cylinder fixing frame; 20. hydraulic cylinder; 21. folding seat; 22. limit support; 23. magnet block; 24. folding plate; 25. hinge shaft; 26. iron support rod; 27. support seat; 28. movable support rod; 29. ​​abutment plate; 30. fixing bolt; 31. hand crank arm. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, the present invention provides a prestressed steel wire tensioning machine, including a central machine body 1, two brackets 2 are welded on one side of the central machine body 1, arc-shaped guide plates 3 are welded on the ends of the two brackets 2, fan-shaped plates 4 are welded on both sides of the top front of the arc-shaped guide plate 3, a guide wheel 5 is arranged between the two fan-shaped plates 4, a fixed shaft 6 is welded inside the guide wheel 5, an anti-skid ring 7 is bonded to the outer wall of the guide wheel 5, a plurality of anti-skid protrusions 8 are arranged on the outer wall of the anti-skid ring 7, and a hand crank arm 31 is welded on one end of the fixed shaft 6 A control handle 9 is welded to the front side of the end of the hand crank arm 31 away from the fixed shaft 6, a screw hole is penetrated at the bottom of the arc guide plate 3, and a wire locking bolt 10 is penetrated inside the screw hole, an upper feed groove 11 and a lower feed groove 12 are arranged inside the side of the central body 1 close to the bracket 2, and a side of the upper feed groove 11 away from the lower feed groove 12 and a side of the lower feed groove 12 away from the upper feed groove 11 are both provided with a limiting groove 13, and a storage rod 14 is arranged inside the upper feed groove 11 and the lower feed groove 12, and a bottom end of the storage rod 14 is welded on one side. A limit block 15 is provided, and limit holes 16 are provided on the front sides of both ends of the two storage rods 14. The top and bottom of the front side of the central body 1 are provided with a retracting limit bolt 17 and an extending limit bolt 18. A hydraulic cylinder fixing frame 19 is welded on the end of the storage rod 14 away from the central body 1. A hydraulic cylinder 20 is fixedly installed inside the hydraulic cylinder fixing frame 19. A folding seat 21 is welded on the end of the output shaft of the hydraulic cylinder 20. A limit support 22 is welded inside the front side of the folding seat 21, and a limit support 22 is bonded inside the front side of the limit support 22. A magnet block 23 is provided, a folding plate 24 is provided on one side of the limit support 22, a hinge shaft 25 is provided on the front side between the folding plate 24 and the folding seat 21, an iron support rod 26 is welded on one side of the folding plate 24, and a support seat 27 is welded on the end of the iron support rod 26 away from the folding plate 24, a movable support rod 28 is hingedly provided on the outer wall of one side of the hydraulic cylinder fixing frame 19 close to the central body 1, and an abutment plate 29 is welded on the end of the movable support rod 28 close to the central body 1, and a fixing bolt 30 is penetrated through the abutment plate 29.

[0022] The two ends of the fixed shaft 6 are rotatably connected to the two sector plates 4 respectively, and the plurality of anti-skid protrusions 8 are evenly distributed on the outer wall of the anti-skid ring 7 in a ring shape in groups of two.

[0023] The wire locking bolt 10 is threadedly connected to the screw hole, and the output shaft of the hydraulic cylinder 20 is transmission-connected to the folding seat 21 .

[0024] The two storage rods 14 are slidably connected to the upper feed slot 11 and the lower feed slot 12 respectively, and the retraction limit bolt 17 and the extension limit bolt 18 are threadedly connected to the central body 1.

[0025] The limiting block 15 is disposed inside the limiting groove 13 at the corresponding position, and the limiting block 15 is slidably connected to the limiting groove 13 at the corresponding position.

[0026] The retraction limit bolt 17 at the top and the extension limit bolt 18 at the bottom are symmetrically arranged on the front side of the central body 1 , and the retraction limit bolt 17 at the bottom and the extension limit bolt 18 at the top are symmetrically arranged on the front side of the central body 1 .

[0027] The output shaft of the hydraulic cylinder 20 passes through one end of the hydraulic cylinder fixing frame 19 and extends to the outside of the hydraulic cylinder fixing frame 19 .

[0028] The folding plate 24 is hinged to the folding seat 21 via a hinge shaft 25 , and the fixing bolt 30 is threadedly connected to the central body 1 .

[0029] The specific implementation method is as follows: when using the present invention, the two support seats 27 are placed at the position where the steel wire needs to be tensioned, and then one end of the steel wire is inserted between the arc guide plate 3 and the guide wheel 5. At this time, the anti-skid ring 7 will press the steel wire against the arc guide plate 3, and then the hand crank arm 31 is rotated by the control handle 9 to rotate the guide wheel 5. Then the anti-skid protrusion 8 will increase the friction between the steel wire and the anti-skid ring 7, so that when the guide wheel 5 rotates, the steel wire can move along the arc guide plate 3. After tightening the steel wire, the steel wire locking bolt 10 is rotated to fix the steel wire, and then the hydraulic cylinder 20 is started to pull the steel wire outward, thereby realizing the tensioning of the steel wire. After using the present device, tighten the hydraulic cylinder 20 to tighten the hydraulic cylinder 20 to tighten the hydraulic cylinder 20. Open the wire locking bolt 10, pull out the wire, then rotate and extend the limit bolt 18 and screw out the fixing bolt 30, rotate the movable support rod 28 to close to the hydraulic cylinder fixing frame 19 and put it away, then move the two hydraulic cylinder fixing shafts 19 inward, and receive the two hydraulic cylinder fixing shafts 19 on both sides of the central body 1, then screw on the retracting limit bolt 17, fix the storage rod 14, and then fold the iron support rod 26 so that it is attracted by the magnet block 23, thereby realizing the folding of the hydraulic cylinder 20 and the iron support rod 26. This allows the present invention to store and fold the device as a whole, reduces the space occupied by the device when it is idle, is easy to carry, and is also more convenient to use, which is conducive to popularization and use.

[0030] Working principle of the present invention: Refer to the instruction manual Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 When the present invention is used, by providing structures such as the storage rod 14, the folding seat 21, the folding plate 24 and the iron support rod 26, the present invention can store and fold the device as a whole, reducing the space occupied by the device when it is idle, making it easy to carry and use, which is conducive to promotion and use.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A prestressed steel wire tensioning machine, comprising a central machine body (1), characterized in that: Two brackets (2) are welded on one side of the central body (1), arc-shaped guide plates (3) are welded on the ends of the two brackets (2), fan-shaped plates (4) are welded on both sides of the top front of the arc-shaped guide plate (3), a guide wheel (5) is arranged between the two fan-shaped plates (4), a fixed shaft (6) is welded inside the guide wheel (5), an anti-skid ring (7) is bonded on the outer wall of the guide wheel (5), and a plurality of anti-skid protrusions (8) are arranged on the outer wall of the anti-skid ring (7), a hand crank arm (31) is welded on one end of the fixed shaft (6), and the front side of the end of the hand crank arm (31) away from the fixed shaft (6) is welded A control handle (9) is provided, a screw hole is provided at the bottom of the arc-shaped guide plate (3), a wire locking bolt (10) is provided inside the screw hole, an upper feed groove (11) and a lower feed groove (12) are provided inside the side of the central body (1) close to the bracket (2), a side of the upper feed groove (11) away from the lower feed groove (12) and a side of the lower feed groove (12) away from the upper feed groove (11) are provided with a limiting groove (13), and a storage rod (14) is provided inside the upper feed groove (11) and the lower feed groove (12), and a limiting block (15) is welded on one side of the bottom end of the storage rod (14), and the two storage rods (14) both ends of the front side are provided with limit holes (16), the front top and the front bottom of the central body (1) are provided with retraction limit bolts (17) and extension limit bolts (18), the end of the storage rod (14) away from the central body (1) is welded with a hydraulic cylinder fixing frame (19), a hydraulic cylinder (20) is fixedly installed inside the hydraulic cylinder fixing frame (19), a folding seat (21) is welded at the end of the output shaft of the hydraulic cylinder (20), a limit support (22) is welded inside the front side of the folding seat (21), and a magnet block (23) is bonded inside the front side of the limit support (22), A folding plate (24) is provided on one side of the limit support (22), a hinge shaft (25) is provided on the front side between the folding plate (24) and the folding seat (21), an iron support rod (26) is welded on one side of the folding plate (24), and a support seat (27) is welded on one end of the iron support rod (26) away from the folding plate (24), and a movable support rod (28) is hingedly provided on the outer wall of one side of the hydraulic cylinder fixing frame (19) close to the central body (1), and an abutment plate (29) is welded on one end of the movable support rod (28) close to the central body (1), and a fixing bolt (30) is penetrated through the abutment plate (29).

2. A prestressed steel wire tensioning machine according to claim 1, characterized in that: The two ends of the fixed shaft (6) are rotatably connected to the two sector plates (4) respectively, and the plurality of anti-slip protrusions (8) are evenly distributed in a ring shape on the outer wall of the anti-slip ring (7) in groups of two.

3. A prestressed steel wire tensioning machine according to claim 1, characterized in that: The wire locking bolt (10) is threadedly connected to the screw hole, and the output shaft of the hydraulic cylinder (20) is transmission-connected to the folding seat (21).

4. A prestressed steel wire tensioning machine according to claim 1, characterized in that: The two storage rods (14) are slidably connected to the upper entry groove (11) and the lower entry groove (12) respectively, and the retraction limit bolt (17) and the extension limit bolt (18) are threadedly connected to the central body (1).

5. The prestressed steel wire tensioning machine according to claim 1, characterized in that: The limiting block (15) is arranged inside the limiting groove (13) at the corresponding position, and the limiting block (15) is slidably connected to the limiting groove (13) at the corresponding position.

6. A prestressed steel wire tensioning machine according to claim 1, characterized in that: The retraction limit bolt (17) located at the top and the extension limit bolt (18) located at the bottom are symmetrically arranged on the front side of the central body (1), and the retraction limit bolt (17) located at the bottom and the extension limit bolt (18) located at the top are symmetrically arranged on the front side of the central body (1).

7. The prestressed steel wire tensioning machine according to claim 1, characterized in that: The output shaft of the hydraulic cylinder (20) passes through one end of the hydraulic cylinder fixing frame (19) and extends to the outside of the hydraulic cylinder fixing frame (19).

8. The prestressed steel wire tensioning machine according to claim 1, characterized in that: The folding plate (24) is hinged to the folding seat (21) via a hinge shaft (25), and the fixing bolt (30) is threadedly connected to the central body (1).

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