Tensioning machine

Abstract

The utility model discloses a tensioning machine which comprises a fixing frame, and the fixing frame comprises a fixing plate and two fixing cross beams. A movable frame is slidably connected to the fixed cross beam; a hydraulic jack is fixed to the fixing plate, and the end of an output shaft of the hydraulic jack is connected to the movable frame. A mounting groove is formed in the movable frame, a connecting block is mounted in the mounting groove, a connecting disc is fixedly connected to the front end of the connecting block, a plurality of locking grooves are distributed in the connecting disc in the circumferential direction, and an anti-disengaging assembly is arranged on the connecting disc. The locking grooves in the connecting disc are tightly matched with the end blocks at the ends of the steel strands, the outer diameter of each end block is larger than the groove width of each locking groove, the stability of the steel strands in the locking grooves is guaranteed, and the steel strands can be conveniently mounted and dismounted. And the connection reliability of the steel strands is further enhanced through the arrangement of the anti-falling assembly. The risk that the steel strand falls off from the locking groove in the tensioning process is effectively prevented, and the safety and stability of the tensioning operation are ensured.

Description

Technical Field

[0001] This utility model relates to a tensioning machine and belongs to the technical field of tensioning equipment. Background Technology

[0002] Traditional tensioning equipment typically employs complex transmission mechanisms to drive the movement of the movable frame. This not only increases the size and weight of the equipment but also easily leads to energy loss during transmission, reducing work efficiency. Furthermore, traditional steel strand connection methods often carry the risk of loosening and detachment, especially during tensioning when the steel strands are subjected to enormous tensile forces. If the connection is unstable, it can easily detach, posing a serious safety hazard to construction workers. Therefore, a tensioning machine has been proposed. Utility Model Content

[0003] The purpose of this invention is to provide a tensioning machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a tensioning machine, comprising:

[0005] A fixing frame, the fixing frame including a fixing plate and two fixing beams, the two fixing beams being arranged in parallel, and one end of the two fixing beams being fixed to the fixing plate;

[0006] A movable frame, which is slidably connected to a fixed crossbeam;

[0007] A hydraulic jack, which is fixed on a fixed plate, has its output shaft end connected to a movable frame for driving the movable frame to slide on a fixed crossbeam;

[0008] The movable frame is provided with an installation slot, and a connecting block is installed inside the installation slot. A connecting plate is fixedly connected to the front end of the connecting block. The connecting plate has multiple locking slots distributed circumferentially to connect with the ends of the steel strands. The connecting plate is provided with an anti-detachment component to prevent the ends of the steel strands from coming out of the locking slots.

[0009] Preferably, the anti-detachment component includes:

[0010] A turntable, which is attached to the end face of a connecting plate;

[0011] Multiple waist-shaped grooves are formed on the side wall of the turntable;

[0012] Multiple fixing bolts are respectively set inside the corresponding waist-shaped groove, and the threaded end of each fixing bolt is engaged with the side wall of the connecting plate;

[0013] Multiple anti-detachment bars are distributed circumferentially on the turntable, and each anti-detachment bar corresponds to a lock groove.

[0014] The connecting disk, the turntable, and the multiple waist-shaped grooves are arranged concentrically.

[0015] When the turntable is rotated clockwise, the anti-disengagement bar moves away from the corresponding lock groove, at which point the lock groove is in the open state.

[0016] When the turntable is rotated counterclockwise, the anti-disengagement bar moves closer to the corresponding lock groove, at which point the anti-disengagement bar blocks the opening of the lock groove.

[0017] Preferably, a locking block is slidably connected to the side wall of the connecting disc via a first spring, and a slot that cooperates with the locking block is provided on any anti-disengagement rod.

[0018] Preferably, a first abutting wall is provided on the inner wall of the mounting groove, and a second abutting wall is provided on the connecting block. When the connecting block is installed inside the mounting groove, the second abutting wall abuts against the first abutting wall.

[0019] Preferably, an annular groove is formed on the side wall of the connecting block, and a locking bolt is engaged with the side wall of the movable frame, with the threaded end of the locking bolt extending into the interior of the annular groove.

[0020] Preferably, two sliding sleeves are provided on the side wall of the movable frame, and the two sliding sleeves are respectively slidably sleeved on two fixed crossbeams.

[0021] Preferably, the output shaft end of the hydraulic jack passes through the movable frame and is fixed with a stop block, and a second spring is provided between the stop block and the movable frame;

[0022] When the output end of the hydraulic jack pulls the stop block to slide, the stop block compresses the second spring and drives the movable frame to slide on the fixed crossbeam.

[0023] Preferably, the side wall of the fixing plate has multiple mounting holes.

[0024] Compared with existing technologies:

[0025] This invention constructs a solid foundation frame through a fixed plate and two parallel fixed crossbeams, providing reliable support for the smooth sliding of the movable frame. The movable frame utilizes two sliding sleeves that engage with the fixed crossbeams, enabling free movement along the length of the crossbeams. This design is not only compact but also highly flexible.

[0026] Secondly, the hydraulic jack, acting as a power source, has its output shaft directly connected to the movable frame, effectively propelling its sliding motion. This direct connection reduces energy loss and improves work efficiency. Simultaneously, the centerline of the hydraulic jack is parallel to the fixed crossbeam, ensuring the stability and accuracy of the movable frame during sliding.

[0027] Furthermore, the locking groove on the connecting disc fits tightly with the end block at the end of the steel strand. The outer diameter of the end block is larger than the width of the locking groove. This design ensures the stability of the steel strand within the locking groove and facilitates its installation and removal. When the steel strand is pulled, the end block rests against the rear end of the locking groove, achieving effective tensioning of the steel strand.

[0028] Finally, the anti-detachment component further enhances the reliability of the steel strand connection. It effectively prevents the risk of the steel strand falling out of the locking groove during tensioning, ensuring the safety and stability of the tensioning operation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the fixed crossbeam and the sliding sleeve of this utility model;

[0031] Figure 3 For the present utility model Figure 2 Enlarged view of point A;

[0032] Figure 4 This is an exploded view of the movable frame and connecting block of this utility model;

[0033] Figure 5 This is an exploded view of the connecting disc and the anti-detachment component of this utility model;

[0034] Figure 6 This is an exploded cross-sectional view of the connecting plate and the turntable of this utility model;

[0035] Figure 7 For the present utility model Figure 6 Enlarged view of point B;

[0036] Figure 8 This is a structural diagram of the movable frame, connecting block, and connecting plate of this utility model.

[0037] In the picture:

[0038] 1. Fixing bracket; 101. Fixing plate; 1011. Mounting hole; 102. Fixing crossbeam;

[0039] 2. Movable frame; 201. Mounting slot; 202. First clamping wall; 203. Sliding sleeve;

[0040] 3. Hydraulic jack;

[0041] 4. Connecting block; 401. Second clamping wall; 402. Annular groove;

[0042] 5. Connecting plate, 501, lock slot;

[0043] 6. Anti-detachment components, 601. Turntable, 602. Waist-shaped groove, 603. Fixing bolt, 604. Anti-detachment rod;

[0044] 7. First spring; 8. Locking block; 9. Locking slot;

[0045] 10. Locking bolt, 11. Stop block, 12. Second spring. Detailed Implementation

[0046] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0047] Example 1

[0048] like Figures 1-8 As shown in this embodiment, a tensioning machine is provided, including a fixed frame 1. The fixed frame 1 includes a fixed plate 101 and two fixed crossbeams 102. Multiple mounting holes 1011 are provided on the side wall of the fixed plate 101. The two fixed crossbeams 102 are arranged in parallel, and one end of each crossbeam is fixed to the fixed plate 101. The fixed plate 101 and the fixed crossbeams 102 form a stable frame. A movable frame 2 is provided on the fixed crossbeams 102. Two sliding sleeves 203 are provided on the side wall of the movable frame 2. The two sliding sleeves 203 are slidably fitted onto the two fixed crossbeams 102, causing the movable frame 2 to slide along the length of the fixed crossbeams 102. A hydraulic jack 3 is fixed on the fixed plate 101. The centerline of the hydraulic jack 3 is parallel to the two fixed crossbeams 102. The output shaft of the hydraulic jack 3... The end is connected to the movable frame 2 to drive the movable frame 2 to slide on the fixed crossbeam 102. The movable frame 2 has an installation groove 201, and a connecting block 4 is installed inside the installation groove 201. A connecting plate 5 is fixedly connected to the front end of the connecting block 4. The connecting plate 5 has multiple locking grooves 501 distributed circumferentially to connect with the end of the steel strand. The end of the steel strand is provided with an end block. The outer diameter of the end block is larger than the groove width of the locking groove 501. During installation, the end of the steel strand only needs to be inserted into the locking groove 501 from one side. At this time, the end block of the steel strand will be at the rear end of the connecting plate 5. After pulling the steel strand forward, the end block of the steel strand will abut against the rear end of the locking groove 501, so that the end of the steel strand is connected to the locking groove 501. The connecting plate 5 is provided with an anti-detachment component 6 to prevent the end of the steel strand from coming out of the locking groove 501.

[0049] The output shaft of the hydraulic jack 3 is connected to the movable frame 2. When the hydraulic jack 3 is working, it pushes or pulls the movable frame 2 to move along the fixed crossbeam 102. The end of the steel strand is connected to the locking groove 501 on the connecting plate 5 through an end block. The outer diameter of the end block is larger than the groove width of the locking groove 501 to ensure the stability of the steel strand within the locking groove 501. After the steel strand is pulled, the end block abuts against the rear end of the locking groove 501. Since the end block of the steel strand abuts against the rear end of the locking groove 501, the steel strand can be tensioned at this time. The anti-detachment component 6 further ensures that the steel strand will not fall out of the locking groove 501, avoiding the risk of the steel strand falling out during the tensioning process.

[0050] Example 2

[0051] like Figures 2-7 As shown, based on Embodiment 1, in this embodiment, the anti-detachment component 6 includes: a turntable 601, which is attached to the end face of the connecting plate 5; multiple waist-shaped grooves 602 are provided on the side wall of the turntable 601; multiple fixing bolts 603 are respectively provided inside the multiple fixing bolts 603, and the threaded end of each fixing bolt 603 is engaged with the side wall of the connecting plate 5; multiple anti-detachment rods 604 are distributed circumferentially on the turntable 601, and the multiple anti-detachment rods 604 correspond one-to-one with multiple locking grooves 501; wherein, the connecting plate 5, the turntable 601 and the multiple waist-shaped grooves 602 are arranged concentrically.

[0052] When the turntable 601 is rotated clockwise, the anti-disengagement rod 604 moves away from the corresponding locking groove 501, at which time the locking groove 501 is in the open state.

[0053] When the turntable 601 is rotated counterclockwise, the anti-disengagement rod 604 moves closer to the corresponding locking groove 501, at which point the anti-disengagement rod 604 blocks the opening of the locking groove 501.

[0054] A locking block 8 is slidably connected to the side wall of the connecting plate 5 via a first spring 7, and a slot 9 that mates with the locking block 8 is provided on any anti-disengagement rod 604.

[0055] Initial state: In the initial state, the turntable 601 is fixed to the end face of the connecting plate 5 by multiple fixing bolts 603. The anti-detachment rods 604 distributed circumferentially on the turntable 601 correspond one-to-one with the locking grooves 501 on the connecting plate 5, but at this time the anti-detachment rods 604 do not block the opening of the locking grooves 501, so that the steel strands can be smoothly put into the locking grooves 501.

[0056] Locked State: When it is necessary to lock the steel strand, rotate the turntable 601 counterclockwise. Since the turntable 601 is concentric with the connecting plate 5, and the waist-shaped groove 602 allows the anti-detachment rod 604 a certain amount of movement space when the turntable 601 rotates, the anti-detachment rod 604 will move closer to the corresponding locking groove 501 as the turntable 601 rotates, and eventually block the opening of the locking groove 501. At this time, the end block of the steel strand is firmly fixed in the locking groove 501 and cannot be removed.

[0057] Fixed anti-detachment rod 604: During the counterclockwise rotation of turntable 601, the slot 9 on turntable 601 will meet the block 8 on the side wall of connecting plate 5. Since one end of the block 8 is spherical and can extend from the connecting plate 5, the extended end of the block 8 will be movably engaged inside the slot 9, thereby fixing the position of turntable 601 and anti-detachment rod 604 and preventing them from moving.

[0058] Unlocked State: When unlocking the steel strand, turn the turntable 601 clockwise with force. At this time, the protruding end of the locking block 8 will disengage from the inside of the locking groove 9, allowing the turntable 601 to rotate freely. As the turntable 601 rotates, the anti-detachment rod 604 will move away from the corresponding locking groove 501, the opening of the locking groove 501 will reopen, and the end block of the steel strand can be smoothly removed from the locking groove 501.

[0059] The inner wall of the mounting groove 201 is provided with a first abutting wall 202, and the connecting block 4 is provided with a second abutting wall 401. When the connecting block 4 is installed inside the mounting groove 201, the second abutting wall 401 abuts against the first abutting wall 202.

[0060] When connecting block 4 is connected, connecting block 4 and connecting plate 5 are inserted together from the rear end of mounting slot 201, that is... Figure 4 As shown, the left side is the front end, and the right side is the back end;

[0061] The installation process is as follows: After the connecting plate 5 and the connecting block 4 are connected as one unit, the connecting plate 5 is first inserted from the rear end of the mounting groove 201, and the connecting block 4 is then inserted into the mounting groove 201. When the connecting plate 5 passes through the mounting groove 201, the connecting block 4 is placed in the mounting groove 201. When the connecting block 4 is installed in place, the second abutting wall 401 abuts against the first abutting wall 202. When tensioning the steel strand, the second abutting wall 401 abuts against the first abutting wall 202, which can prevent the connecting block 4 from coming out of the mounting groove 201.

[0062] A ring groove 402 is provided on the side wall of the connecting block 4, and a locking bolt 10 is engaged on the side wall of the movable frame 2, with the threaded end of the locking bolt 10 extending into the interior of the ring groove 402.

[0063] Example 3

[0064] like Figure 2As shown, in the above embodiment, in this embodiment, the output shaft end of the hydraulic jack 3 passes through the movable frame 2 and is fixed with a stop block 11. A second spring 12 is provided between the stop block 11 and the movable frame 2, as shown. Figure 2 As shown, the second spring 12 is sleeved on the output shaft of the hydraulic jack 3. One end of the second spring 12 is fixed on the stop block 11, and the other end of the second spring 12 is fixed on the side wall of the movable frame 2.

[0065] When the output end of the hydraulic jack 3 pulls the stop block 11 to slide, the stop block 11 compresses the second spring 12 and drives the movable frame 2 to slide on the fixed crossbeam 102.

[0066] Initial state: In the initial state, the output shaft end of the hydraulic jack 3 passes through the movable frame 2 and is fixed with a stop block 11. A second spring 12 is provided between the stop block 11 and the movable frame 2, and the second spring 12 is sleeved on the output shaft of the hydraulic jack 3. At this time, the second spring 12 is in a naturally extended state.

[0067] Stretching process: When the hydraulic jack 3 starts working, its output end extends and pulls the stop block 11. Since the stop block 11 is fixed to the end of the output shaft of the hydraulic jack 3, the stop block 11 will move as the output shaft extends. During the movement of the stop block 11, it will compress the second spring 12, causing the second spring 12 to change from a naturally extended state to a compressed state.

[0068] Sliding of the movable frame: As the stop 11 moves and the second spring 12 is compressed, the stop 11 will drive the movable frame 2 to slide on the fixed crossbeam 102. Since the movable frame 2 is provided with a sliding sleeve 203 on its side wall, and the sliding sleeve 203 is slidably sleeved on the two fixed crossbeams 102, the movable frame 2 can slide smoothly along the length of the fixed crossbeam 102.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tensioning machine, characterized in that, include: The fixing frame (1) includes a fixing plate (101) and two fixing beams (102). The two fixing beams (102) are arranged in parallel, and one end of the two fixing beams (102) is fixed to the fixing plate (101). The movable frame (2) is slidably connected to the fixed crossbeam (102); A hydraulic jack (3) is fixed on a fixed plate (101). The output shaft end of the hydraulic jack (3) is connected to a movable frame (2) to drive the movable frame (2) to slide on a fixed crossbeam (102). The movable frame (2) is provided with an installation groove (201), and a connecting block (4) is installed inside the installation groove (201). A connecting plate (5) is fixedly connected to the front end of the connecting block (4). The connecting plate (5) has multiple locking grooves (501) distributed circumferentially to connect with the end of the steel strand. The connecting plate (5) is provided with an anti-detachment component (6) to prevent the end of the steel strand from coming out of the locking groove (501).

2. A tensioning machine according to claim 1, characterized in that, The anti-detachment component (6) includes: Turntable (601), said turntable (601) is attached to the end face of connecting plate (5); Multiple waist-shaped grooves (602) are formed on the side wall of the turntable (601); Multiple fixing bolts (603) are respectively set inside the corresponding waist-shaped groove (602), and the threaded end of each fixing bolt (603) is engaged with the side wall of the connecting plate (5); Multiple anti-detachment rods (604) are circumferentially distributed on the turntable (601), and the multiple anti-detachment rods (604) correspond one-to-one with multiple locking grooves (501); The connecting disk (5), the turntable (601), and the multiple waist-shaped grooves (602) are arranged concentrically in the same circle. When the turntable (601) is rotated clockwise, the anti-disengagement rod (604) moves away from the corresponding locking groove (501), at which time the locking groove (501) is in the open state; When the turntable (601) is rotated counterclockwise, the anti-disengagement bar (604) moves closer to the corresponding lock groove (501), at which point the anti-disengagement bar (604) blocks the opening of the lock groove (501).

3. A tensioning machine according to claim 2, characterized in that, A locking block (8) is slidably connected to the side wall of the connecting plate (5) via a first spring (7), and a slot (9) that cooperates with the locking block (8) is provided on any anti-disengagement rod (604).

4. A tensioning machine according to claim 1, characterized in that, The inner wall of the mounting groove (201) is provided with a first abutting wall (202), and the connecting block (4) is provided with a second abutting wall (401). When the connecting block (4) is installed inside the mounting groove (201), the second abutting wall (401) abuts against the first abutting wall (202).

5. A tensioning machine according to claim 4, characterized in that, The connecting block (4) has an annular groove (402) on its side wall, and the movable frame (2) has a locking bolt (10) engaged on its side wall, with the threaded end of the locking bolt (10) extending into the annular groove (402).

6. A tensioning machine according to claim 1, characterized in that, Two sliding sleeves (203) are provided on the side wall of the movable frame (2), and the two sliding sleeves (203) are respectively slidably sleeved on the two fixed crossbeams (102).

7. A tensioning machine according to claim 1, characterized in that, The output shaft end of the hydraulic jack (3) passes through the movable frame (2) and is fixed with a stop block (11). A second spring (12) is provided between the stop block (11) and the movable frame (2). When the output end of the hydraulic jack (3) pulls the stop block (11) to slide, the stop block (11) compresses the second spring (12) and drives the movable frame (2) to slide on the fixed crossbeam (102).

8. A tensioning machine according to claim 1, characterized in that, The fixing plate (101) has multiple mounting holes (1011) on its side wall.

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