Prestressed anchor cable limiting device

Abstract

The utility model relates to the technical field of pre-stressed anchor cable construction, in particular to a pre-stressed anchor cable limiting device which comprises a box body and a limiting mechanism, the limiting mechanism comprises a plurality of clamping assemblies and two fixing assemblies, and each clamping assembly comprises a fixing block, a cylinder, a threaded rod, a clamping plate, a disc, a plurality of anti-skid teeth and an anti-skid pad. Multiple groups of circular holes are symmetrically formed in the box body, the multiple groups of clamping assemblies are arranged in the box body, one end of the fixing block is fixedly connected with the box body, the other end of the fixing block is fixedly connected with the cylinder, the threaded rod penetrates through the cylinder, one end of the threaded rod is rotationally connected with the clamping plate, and the other end of the threaded rod is fixedly connected with the disc; the multiple anti-skid teeth are fixedly connected with the disc, the anti-skid pads are fixedly connected with the clamping plates, the two fixing assemblies are symmetrically arranged on the two sides of the box body, through the arrangement, the anchor cable is fixed more stably, the anchor cable is prevented from sliding, and meanwhile the prestress of the anchor cable can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed anchor cable construction, in particular to a prestressed anchor cable limiting device. Background Art

[0002] When prestressed anchor cables are used to reinforce projects, there is often a large loss of pre-tensioning stress in the anchor cables after the jack is unloaded. This is because the clip is not in contact with the working anchor, and the unloading of the jack causes the anchor cables to retract. Therefore, a limiting device is needed to limit the anchor cables to avoid retraction and reduce the loss of pre-tensioning stress. However, the existing anchor cable limiting device has a complex structure and is not easy to install, and it is still easy to cause a part of the prestress to be lost.

[0003] In order to solve the above technical problems, the prior art patent (CN208981794U) discloses a prestressed anchor cable limiting device, including a limiting seat, a movable pressure plate, a hammer bar and other components. The limiting seat is a hollow cylinder with an opening at one end. The movable pressure plate is arranged in the limiting seat and can move axially in the limiting seat. At least one first anchor cable through hole is arranged on the movable pressure plate, and a second anchor cable through hole is arranged at a position corresponding to the first anchor cable through hole on the limiting seat. The movable pressure plate is provided with a hammer bar, and a slide groove is arranged at a position corresponding to the hammer bar on the limiting seat. The hammer bar extends from the slide groove to the outside of the limiting seat and can move along the slide groove. The prestressed anchor cable limiting device of the utility model has a simple structure and is easy to operate. Before the jack is unloaded, the clip can be made to be in close contact with the working anchor to lock the anchor cable and reduce the prestress loss of the anchor cable.

[0004] However, in the above-mentioned prior art, the use of a clip to clamp the working anchor to bite and fix the anchor cable is not stable, which can easily cause the anchor cable to slide, thereby causing the anchor cable to retract. Utility Model Content

[0005] The utility model aims to provide a prestressed anchor cable limiting device, aiming to solve the technical problem in the prior art that the anchor cable is not firmly fixed by using a clip to clamp into a working anchor, which easily causes the anchor cable to slide and thus causes the anchor cable to retract.

[0006] To achieve the above-mentioned purpose, the utility model adopts a prestressed anchor cable limiting device, including a box body and a limiting mechanism, the limiting mechanism including multiple groups of clamping components and two groups of fixing components, each group of the clamping components including a fixing block, a cylinder, a threaded rod, a splint, a disc, a plurality of anti-skid teeth and an anti-skid pad, the box body is symmetrically provided with multiple groups of circular holes, and the multiple groups of the clamping components are all arranged inside the box body, one end of the fixing block is fixedly connected to the box body, the other end of the fixing block is fixedly connected to the cylinder, the splint is arranged inside the cylinder, the threaded rod passes through the cylinder and cooperates with the cylinder thread, one end of the threaded rod is rotatably connected to the splint, and the other end of the threaded rod is fixedly connected to the disc, the multiple anti-skid teeth are fixedly connected to the disc and are located on the outside of the disc, the anti-skid pad is fixedly connected to the splint and is located on the lower surface of the splint, and the two groups of the fixing components are symmetrically arranged on both sides of the box body.

[0007] Among them, each group of the fixed components includes a mounting plate, a screw rod, a turntable, a supporting member, a guide member and two groups of rotating members. The mounting plate is fixedly connected to the box body and is located on one side of the box body. The screw rod passes through the mounting plate and is threadedly matched with the mounting plate. One end of the screw rod is rotatably connected to the supporting member, and the other end of the screw rod is fixedly connected to the turntable. The two groups of rotating members are symmetrically arranged on the outside of the turntable, and the guide member is arranged on the upper surface of the mounting plate.

[0008] Wherein, the supporting member includes a bottom plate and a protective pad, wherein the bottom plate is rotatably connected to the screw rod and is located at one end of the screw rod, and the protective pad is fixedly connected to the bottom plate and is located at one side of the bottom plate.

[0009] Wherein, each group of the rotating parts includes a grip rod and an anti-slip sleeve, the grip rod is fixedly connected to the turntable and is located on the outside of the turntable, and the anti-slip sleeve is sleeved on the outside of the grip rod.

[0010] Among them, the guide member includes a guide block, a guide rod and a limit block, the guide block is fixedly connected to the mounting plate and is located above the mounting plate, the guide rod passes through the guide block and is slidably connected to the guide block, one end of the guide rod is fixedly connected to the base plate, and the other end of the guide rod is fixedly connected to the limit block.

[0011] Wherein, the prestressed anchor cable limiting device also includes two telescopic rods and a support plate, one end of the two telescopic rods is respectively fixedly connected to the box body, and the other end of the two telescopic rods is respectively fixedly connected to the support plate.

[0012] The utility model discloses a prestressed anchor cable limiting device, one end of the threaded rod is rotatably connected to the clamping plate, the other end of the threaded rod is fixedly connected to the disc, the anti-slip pad is fixedly connected to the clamping plate, and the two groups of fixing components are symmetrically arranged on both sides of the box body. When it is used, after the anchor cable passes through the working anchor, the anchor cable is passed through the circular hole on one side of the box body into the box body, and then the anchor cable passes through the cylinder and passes through the circular hole on the other side of the box body and is connected to the jack, and then the anchor cable is tightened by the jack. The anchor cable is tensioned to generate prestress, and then the two groups of fixing components are fitted with the working anchor. The disc is then rotated, and the disc drives the threaded rod to rotate, so that the threaded rod drives the clamping plate to move downward, thereby clamping and fixing the anchor cable. The jack is then removed. At this time, under the prestress of the anchor cable, the fixing component is against the working anchor, thereby limiting and fixing the anchor cable. This method can effectively solve the problem in the prior art that the anchor cable is not firmly fixed by using a clip to clamp the working anchor, which can easily cause the anchor cable to slide, thereby causing the anchor cable to retract. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0015] Figure 2 It is a top view of the first embodiment of the utility model.

[0016] Figure 3 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0017] Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0018] 101-box, 102-round hole, 103-fixed block, 104-cylinder, 105-threaded rod, 106-clamp, 107-disc, 108-anti-slip teeth, 109-anti-slip pad, 110-mounting plate, 111-screw, 112-turntable, 113-bottom plate, 114-protective pad, 115-grip, 116-anti-slip sleeve, 117-guide block, 118-guide rod, 119-limit block, 120-working anchor, 121-jack, 122-anchor cable, 201-telescopic rod, 202-support plate. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figure 1 to Figure 3 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 is a top view of the first embodiment of the utility model, Figure 3 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0022] The utility model provides a prestressed anchor cable limiting device, including a box body 101 and a limiting mechanism, the limiting mechanism includes a plurality of clamping components and two groups of fixing components, each group of the clamping components includes a fixing block 103, a cylinder 104, a threaded rod 105, a clamping plate 106, a disc 107, a plurality of anti-skid teeth 108 and an anti-skid pad 109, each group of the fixing components includes a mounting plate 110, a screw rod 111, a turntable 112, a holding member, a guide member and two groups of rotating members, the holding member includes a bottom plate 113 and a protective pad 114, each group of the rotating members includes a gripping rod 115 and an anti-skid sleeve 116, the guide member includes a guide block 117, a guide rod 118 and a limiting block 119, the above-mentioned scheme solves the problem in the prior art that the anchor cable is not firmly fixed by using a clip to clamp into a working anchor, which easily causes the anchor cable to slide, thereby causing the anchor cable to retract.

[0023] According to this specific embodiment, the box body 101 is symmetrically provided with multiple groups of circular holes 102, and multiple groups of the clamping components are all arranged inside the box body 101. One end of the fixing block 103 is fixedly connected to the box body 101, and the other end of the fixing block 103 is fixedly connected to the cylinder 104. The clamping plate 106 is arranged inside the cylinder 104. The threaded rod 105 passes through the cylinder 104 and is threadedly matched with the cylinder 104. One end of the threaded rod 105 is rotatably connected to the clamping plate 106, and the other end of the threaded rod 105 is fixedly connected to the disc 107. Multiple anti-skid teeth 108 are fixedly connected to the disc 107 and are located on the outside of the disc 107. The anti-skid pad 109 is fixedly connected to the clamping plate 106 and is located on the lower surface of the clamping plate 106. Two groups of the fixing components are symmetrically arranged on the box body 1 01, when it is used in practice, after the anchor cable 122 passes through the working anchor 120, the anchor cable 122 is passed through the circular hole 102 on one side of the box body 101 into the box body 101, and then the anchor cable 122 passes through the cylinder 104, and then passes through the circular hole 102 on the other side of the box body 101, and is connected to the jack 121, and then the anchor cable 122 is tensioned by the jack 121 to make the anchor cable 122 generate prestress, and then the two groups of the fixing components are fitted with the working anchor 120, and then the disc 107 is rotated, and the disc 107 drives the threaded rod 105 to rotate, so that the threaded rod 105 drives the clamping plate 106 to move downward, thereby clamping and fixing the anchor cable 122, and then the jack 121 is removed. At this time, under the prestress of the anchor cable 122, the fixing component is against the working anchor 120, so that the anchor cable 122 is limited and fixed.

[0024] Among them, the mounting plate 110 is fixedly connected to the box body 101 and is located on one side of the box body 101, the screw rod 111 passes through the mounting plate 110 and is threadedly matched with the mounting plate 110, one end of the screw rod 111 is rotatably connected to the abutment, and the other end of the screw rod 111 is fixedly connected to the turntable 112, and the two groups of the rotating parts are symmetrically arranged on the outside of the turntable 112, and the guide member is arranged on the upper surface of the mounting plate 110. When in use, the rotating part is rotated, and the rotating part drives the turntable 112 to rotate, and the turntable 112 drives the screw rod 111 to rotate, so that the screw rod 111 drives the abutment to move toward the working anchor 120.

[0025] Secondly, the base plate 113 is rotatably connected to the screw rod 111 and is located at one end of the screw rod 111. The protective pad 114 is fixedly connected to the base plate 113 and is located on one side of the base plate 113. When in use, the base plate 113 is supported by the working anchor 120. By providing the protective pad 114, wear of the base plate 113 and the working anchor 120 due to squeezing can be avoided.

[0026] At the same time, the grip 115 is fixedly connected to the turntable 112 and is located on the outside of the turntable 112. The anti-slip cover 116 is sleeved on the outside of the grip 115. When in use, the anti-slip cover 116 can enhance the friction of the grip 115. When the grip 115 is rotated, the grip 115 drives the turntable 112 to rotate.

[0027] In addition, the guide block 117 is fixedly connected to the mounting plate 110 and is located above the mounting plate 110. The guide rod 118 passes through the guide block 117 and is slidably connected to the guide block 117. One end of the guide rod 118 is fixedly connected to the bottom plate 113, and the other end of the guide rod 118 is fixedly connected to the limit block 119. When in use, the bottom plate 113 moves to drive the guide rod 118 to slide on the guide block 117, thereby ensuring that the bottom plate 113 maintains a horizontal forward and backward movement with the box body 101.

[0028] A prestressed anchor cable limiting device according to the present embodiment is used in specific use. After the anchor cable 122 passes through the working anchor 120, the anchor cable 122 is inserted into the box body 101 from the circular hole 102 on one side of the box body 101. Then, the anchor cable 122 passes through the cylinder 104 and then passes through the circular hole 102 on the other side of the box body 101 and is connected to the jack 121. The anchor cable 122 is then tensioned by the jack 121 to generate prestress in the anchor cable 122. Then, the gripping rod 115 is rotated, and the gripping rod 115 drives the turntable 112 to rotate. The turntable 112 drives the screw rod 111 to rotate, so that the screw rod 111 drives the bottom plate 113 to fit with the working anchor 120. Then, the disk 107 is rotated. 107 drives the threaded rod 105 to rotate, so that the threaded rod 105 drives the clamping plate 106 to move downward, thereby clamping and fixing the anchor cable 122, and then removes the jack 121. At this time, under the prestress of the anchor cable 122, the bottom plate 113 is abutted against the working anchor 120, thereby limiting and fixing the anchor cable 122, and then by rotating the gripping rod 115, the screw rod 111 drives the bottom plate 113 to move toward the working anchor 120, so that the box 101 moves in the opposite direction to the working anchor 120, thereby tensioning the anchor cable 122, thereby further strengthening the prestress of the anchor cable 122. This method can effectively solve the problem in the prior art that the anchor cable is not firmly fixed by using a clamp to clamp into the working anchor, which easily causes the anchor cable to slide, thereby causing the anchor cable to retract.

[0029] The second embodiment of the present application is:

[0030] Based on the first embodiment, please refer to Figure 4 , Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0031] The utility model provides a prestressed anchor cable limiting device, which also includes two telescopic rods 201 and a support plate 202.

[0032] According to this specific embodiment, one end of the two telescopic rods 201 is fixedly connected to the box body 101, and the other ends of the two telescopic rods 201 are fixedly connected to the support plate 202. When in use, the box body 101 and the support plate 202 are fixed by the two telescopic rods 201, and the bottom plate 113 is in contact with the ground, thereby supporting the box body 101.

[0033] When using the prestressed anchor cable limiting device of this embodiment, the two telescopic rods 201 are extended and retracted so that the support plate 202 is in contact with the ground, thereby supporting the box body 101.

[0034] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A prestressed anchor cable limiting device, comprising a box, characterized in that: It also includes a limiting mechanism, which includes multiple groups of clamping components and two groups of fixing components, the box body is symmetrically provided with multiple groups of circular holes, and the multiple groups of clamping components are all arranged inside the box body, each group of the clamping components includes a fixed block, a cylinder, a threaded rod, a splint, a disc, multiple anti-slip teeth and an anti-slip pad, one end of the fixed block is fixedly connected to the box body, the other end of the fixed block is fixedly connected to the cylinder, the splint is arranged inside the cylinder, the threaded rod passes through the cylinder and cooperates with the cylinder thread, one end of the threaded rod is rotatably connected to the splint, and the other end of the threaded rod is fixedly connected to the disc, the multiple anti-slip teeth are fixedly connected to the disc and are located on the outside of the disc, the anti-slip pad is fixedly connected to the splint and is located on the lower surface of the splint, and two groups of fixing components are symmetrically arranged on both sides of the box body.

2. The prestressed anchor cable limiting device according to claim 1, characterized in that: Each group of the fixed components includes a mounting plate, a screw rod, a turntable, a supporting member, a guide member and two groups of rotating members. The mounting plate is fixedly connected to the box body and is located on one side of the box body. The screw rod passes through the mounting plate and is threadedly matched with the mounting plate. One end of the screw rod is rotatably connected to the supporting member, and the other end of the screw rod is fixedly connected to the turntable. The two groups of rotating members are symmetrically arranged on the outside of the turntable, and the guide member is arranged on the upper surface of the mounting plate.

3. The prestressed anchor cable limiting device according to claim 2, characterized in that: The supporting member comprises a bottom plate and a protective pad, wherein the bottom plate is rotatably connected to the screw rod and is located at one end of the screw rod, and the protective pad is fixedly connected to the bottom plate and is located at one side of the bottom plate.

4. The prestressed anchor cable limiting device according to claim 3, characterized in that: Each group of rotating parts includes a grip rod and an anti-slip sleeve. The grip rod is fixedly connected to the rotating disk and is located on the outer side of the rotating disk. The anti-slip sleeve is sleeved on the outer side of the grip rod.

5. The prestressed anchor cable limiting device according to claim 4, characterized in that: The guide member includes a guide block, a guide rod and a limit block. The guide block is fixedly connected to the mounting plate and is located above the mounting plate. The guide rod passes through the guide block and is slidably connected to the guide block. One end of the guide rod is fixedly connected to the base plate, and the other end of the guide rod is fixedly connected to the limit block.

6. The prestressed anchor cable limiting device according to claim 5, characterized in that: The prestressed anchor cable limiting device also includes two telescopic rods and a support plate, one end of the two telescopic rods is respectively fixedly connected to the box body, and the other end of the two telescopic rods is respectively fixedly connected to the support plate.

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