Auxiliary tool for replacing steel strand clamping piece

Abstract

The utility model relates to the technical field of steel strand construction, in particular to an auxiliary tool for replacing a steel strand clamping piece, which comprises a stress sleeve, a steel strand is sleeved with the stress sleeve, one end of the stress sleeve is used for abutting against an anchor cup, and a receding groove for the steel strand clamping piece to pass through is formed in the stress sleeve; the force application piece is located on the side, away from the anchor cup, of the stress sleeve, abuts against the stress sleeve, is connected with the steel strand and is used for increasing the distance between the connection point of the force application piece and the steel strand and the anchor cup; the steel strand clamping piece replacing device has the advantages that the super-tension state of the steel strand can be achieved through cooperation of the force application piece and the stress sleeve, then the in-out action of the steel strand clamping piece is completed through the receding groove, operation is easy, operation can be completed only by one constructor, and the labor occupation cost of steel strand clamping piece replacing operation is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of steel strand construction, and in particular to an auxiliary tool for replacing steel strand clips. Background Art

[0002] Strand tensioning is the process of creating prestress in prestressed concrete structures by stretching the strands to enhance the concrete's load-bearing capacity and durability. During this process, the strands are stretched to a specific prestress value and then secured to the concrete structure via an anchoring system. This creates compressive stress in the concrete, offsetting the tensile stress from external loads and increasing the structure's load-bearing capacity.

[0003] The U-shaped steel bar is fixedly connected to the curved steel sheet and is located in the middle of the curved steel sheet, and the U-shaped steel bar and the curved steel sheet are both against each other. The arc-shaped steel sheet is held at the output end of the microcomputer-controlled tensile stress relaxation testing machine, the arc-shaped steel sheet and the tool anchor clip are mutually supported, and are located at one end of the tool anchor clip, and are also located in the main body of the screw pusher, the thread is threadedly connected to the microcomputer-controlled tensile stress relaxation testing machine, and is located at one end of the microcomputer-controlled tensile stress relaxation testing machine, the main body of the screw pusher is also mutually supported with the tool anchor clip, and are located at the other end of the tool anchor clip, and the output end of the microcomputer-controlled tensile stress relaxation testing machine passes through the steel strand clip through hole.

[0004] With regard to the above-mentioned related technologies, when replacing the steel strand clip, the staff needs to loosen the clip with the help of U-shaped steel bars and arc-shaped steel sheets, and then use a spiral pusher to support the tool anchor clip. The reaction force of the arc-shaped steel sheet is used to separate the multiple components in the tool anchor clip and the output end of the microcomputer-controlled tensile stress relaxation testing machine, and finally remove the tool anchor clip. However, during the removal of the steel strand clip, multiple construction workers are required to cooperate with each other to operate, resulting in high manpower costs. Utility Model Content

[0005] In order to reduce the manpower cost of replacing steel strand clips, the present application provides an auxiliary tool for replacing steel strand clips.

[0006] The auxiliary tool for replacing steel strand clips provided in this application adopts the following technical solution:

[0007] An auxiliary tool for replacing a steel strand clip, comprising:

[0008] A force-bearing sleeve, which is sleeved on the steel strand, and one end of which is used to abut against the anchor cup, and a clearance groove for the steel strand clip to pass through is provided on the force-bearing sleeve;

[0009] A force-applying member is located on the side of the force-bearing sleeve away from the anchor cup, the force-applying member abuts against the force-bearing sleeve, and is used to connect with the steel strand to increase the distance between the connection point between the force-applying member and the steel strand and the anchor cup.

[0010] By adopting the above technical solution, when the steel strand clip needs to be replaced, the force sleeve is passed through the steel strand so that the force sleeve abuts against the anchor cup, and then the force-applying piece is installed. After the force-applying piece is installed, force is applied to the force sleeve through the force-applying piece, so that the distance between the connection point between the force-applying piece and the steel strand and the anchor cup increases. At this time, the steel strand is in an over-tensioned state, and the diameter of the steel strand becomes smaller. Then, the steel strand clip that needs to be replaced is taken out through the give-way groove, and then the new steel strand clip is reinserted into the anchor cup through the give-way groove. The force-applying piece is controlled to slowly release force so that the steel strand returns to a normal tensioned state. The steel strand and the anchor cup cooperate to re-fix the steel strand clip, and the steel strand clip is replaced. The auxiliary tool designed for replacing the steel strand clip can achieve the over-tensioned state of the steel strand through the cooperation of the force-applying piece and the force sleeve, and then completes the entry and exit action of the steel strand clip through the give-way groove. The operation is simple and only requires one construction worker to complete it, reducing the manpower cost of the steel strand clip replacement operation.

[0011] In a specific possible implementation manner, at least one anti-bending reinforcement rib is connected to the outer peripheral side of the force-bearing sleeve.

[0012] By adopting the above technical solution, the designed anti-bending reinforcement ribs can improve the deformation resistance of the stressed sleeve after being compressed, and improve the overall structural strength of the stressed sleeve.

[0013] In a specific possible implementation scheme, a mounting top ring is slidably connected inside the force-bearing sleeve, the mounting top ring is coaxially arranged with the force-bearing sleeve, and a driving member is provided on the force-bearing sleeve for driving the mounting top ring to slide along the axis of the force-bearing sleeve, and the driving member is connected to the mounting top ring.

[0014] By adopting the above technical solution, the designed installation top ring can cooperate with the driving component to simultaneously drive multiple steel strand clips to move toward one side of the anchor cup, thereby improving the installation efficiency of the steel strand clips and also improving the neatness of the steel strand clips. The driving component can drive the installation top ring to move toward one side of the anchor cup along the direction of the steel strand.

[0015] In a specific embodiment, the driving member includes:

[0016] A fixing ring, the fixing ring is connected to the force-bearing sleeve, and the fixing ring is sleeved on the force-bearing sleeve;

[0017] A plurality of sliding blocks, wherein a strip groove is provided on the force-bearing sleeve, the strip groove is provided along the axial direction of the force-bearing sleeve, and the sliding blocks pass through the strip groove and are connected to the mounting top ring;

[0018] A plurality of driving bolts are threadedly connected to the fixing ring and abut against the sliding block.

[0019] By adopting the above technical solution, the designed driving part can drive the sliding block to slide along the opening direction of the strip groove through the cooperation of the fixing ring and the driving bolt. The sliding block can drive the installation top ring to move, and then synchronously drive multiple steel wire clips to move.

[0020] In a specific embodiment, a fixed magnet is embedded in the mounting top ring.

[0021] By adopting the above technical solution, the fixed magnet is designed to improve the position stability of the steel strand clip during the movement toward the anchor cup.

[0022] In a specific possible implementation scheme, the force-applying member includes a prestressed jack, which is sleeved on the steel strand, the body of the prestressed jack is tightly embraced by the steel strand, and the piston rod of the prestressed jack is in contact with the force-bearing sleeve.

[0023] By adopting the above technical solution, the designed force-applying member can facilitate the construction workers to complete the super-tensioning of the steel strand through the prestressed jack with simple and quick operation. It is also light in size and can reduce the labor intensity of the construction workers.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The auxiliary tool designed for replacing the steel strand clip can realize the super-tension state of the steel strand through the cooperation of the force-applying member and the force-bearing sleeve, and then complete the entry and exit action of the steel strand clip through the give way groove. It is simple to operate and only requires one construction worker to complete it, reducing the manpower cost of the steel strand clip replacement operation.

[0026] 2. The auxiliary tool designed for replacing steel strand clips can cooperate with the driving part to simultaneously drive multiple steel strand clips to move toward the side of the anchor cup, thereby improving the installation efficiency of the steel strand clips and also improving the neatness of the steel strand clips. The driving part can drive the installation top ring to move toward the side of the anchor cup along the direction of the steel strand.

[0027] 3. The auxiliary tool designed for replacing the steel strand clip can facilitate the construction workers to complete the super-tensioning of the steel strand simply and quickly through the prestressed jack. It is also lightweight and can reduce the labor intensity of the construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a schematic diagram of the relative position relationship between the steel strand, the anchor cup and the steel strand clip in the prior art.

[0029] Figure 2 It is a structural schematic diagram of an auxiliary tool for replacing steel strand clips according to an embodiment of the present application.

[0030] Figure 3 is Figure 2 Schematic diagram of the structure after adding bending reinforcement ribs on the basis of

[0031] Figure 4 is Figure 3 Schematic diagram of the structure after the top ring and drive parts are installed on the basis of the above.

[0032] Figure 5 yes Figure 4 Schematic diagram of the three-dimensional structure.

[0033] Explanation of the accompanying reference numerals: 01, steel strand; 02, anchor cup; 03, steel strand clip; 1, force-bearing sleeve; 11, clearance groove; 12, strip groove; 2, force-applying member; 21, prestressed jack; 3, anti-bending reinforcement rib; 4, mounting top ring; 5, driving member; 51, fixing ring; 52, sliding block; 53, driving bolt; 6, fixing magnet. DETAILED DESCRIPTION

[0034] The following is combined with Figure 2-5 This application is described in further detail.

[0035] An embodiment of the present application discloses an auxiliary tool for replacing steel strand clips.

[0036] Reference Figure 1 In the prior art, the prestressed anchor cable tensioning structure includes a steel strand 01, an anchor cup 02, and a steel strand clip 03. One end of the steel strand 01 extends into the anchor cable hole inside the soil and is reinforced by pouring concrete. The anchor cup 02 is sleeved on the steel strand 01, and the anchor cup 02 is in contact with the concrete beam set outside the soil. There are multiple steel strand clips 03, which are located in the gap between the anchor cup 02 and the steel strand 01. The steel strand 01 is clamped and fixed by a wedge-shaped structure, so that the steel strand 01 and the anchor cup 02 can be stationary in relative position.

[0037] Reference Figure 2An auxiliary tool for replacing a steel strand clip includes a force sleeve 1 and a force-applying member 2. The force sleeve 1 is sleeved on the steel strand 01, and one end of the force sleeve 1 is used to abut against the outer end of the anchor cup 02. In order to remove or reinsert the steel strand clip 03, a clearance groove 11 is opened on the force sleeve 1 for the steel strand clip 03 to pass through; the force-applying member 2 is located on the side of the force sleeve 1 away from the anchor cup 02, and the force-applying member 2 is used to connect with the steel strand 01, and the force-applying member 2 abuts against the end of the force sleeve 1 away from the anchor cup 02, which is used to increase the distance between the connection point of the force-applying member 2 with the steel strand 01 and the anchor cup 02, so that the steel strand 01 is in an over-tensioned state.

[0038] Reference Figure 2 In the present application, the force-applying member 2 may be a prestressed jack 21, or it may be other structures that can apply force to the force-bearing sleeve 1 while being connected to the steel strand 01 so that the steel strand 01 is in an over-tensioned state. In order to facilitate the construction personnel to complete the over-tensioning of the steel strand 01 simply and quickly, and to be lightweight and reduce the labor intensity of the construction personnel, the force-applying member 2 in the present embodiment is set as a prestressed jack 21, which is sleeved on the steel strand 01, and the clamping part of the main body of the prestressed jack 21 is tightly clamped with the steel strand 01, and the piston rod of the prestressed jack 21 is in contact with the end of the force-bearing sleeve 1 away from the anchor cup 02.

[0039] Reference Figure 3 Since the force required to put the steel strand 01 in an over-tensioned state is large, the external force borne by the stressed sleeve 1 is large. In order to improve the deformation resistance of the stressed sleeve 1 after being compressed, improve the overall structural strength of the stressed sleeve 1, and extend the service life of the stressed sleeve 1, at least one anti-bending reinforcement rib 3 is welded and fixed on the outer peripheral side of the stressed sleeve 1. In this application, the number of anti-bending reinforcement ribs 3 welded on the stressed sleeve 1 can be one, two, or three, as long as it can reduce the degree of deformation of the stressed sleeve 1 after being stressed. In this embodiment, the number of anti-bending reinforcement ribs 3 welded on the stressed sleeve 1 is five.

[0040] Reference Figure 4 In order to cooperate with the driving part 5 to simultaneously drive multiple steel wire clips 03 to move toward the side of the anchor cup 02, improve the installation efficiency of the steel wire clips 03, and also improve the neatness of the steel wire clips 03, the auxiliary tools for replacing the steel wire clips 03 also include an installation top ring 4, which is slidably connected to the force sleeve 1, and the installation top ring 4 is coaxially arranged with the force sleeve 1.

[0041] Reference Figure 5 In order to improve the position stability of the steel wire clip 03 during its movement toward the anchor cup 02, a fixed magnet 6 is embedded in the top ring 4, and the fixed magnet 6 can be magnetically fixed to the steel wire clip 03.

[0042] Reference Figure 5 In order to facilitate the driving of the installation top ring 4 in the force-bearing sleeve 1 to move along the axial direction of the force-bearing sleeve 1 toward the side of the anchor cup 02, the auxiliary tool for replacing the steel strand clip 03 also includes a driving member 5. The driving member 5 is installed on the force-bearing sleeve 1, and the driving member 5 is connected to the installation top ring 4, and is used to drive the installation top ring 4 in the force-bearing sleeve 1 to move along the axial direction of the force-bearing sleeve 1 toward the side of the anchor cup 02.

[0043] Reference Figure 5 The driving member 5 includes a fixing ring 51, a sliding block 52 and a driving bolt 53. The fixing ring 51 is welded and fixed to the force-bearing sleeve 1, and the fixing ring 51 is sleeved on the force-bearing sleeve 1. There are multiple sliding blocks 52. A strip groove 12 is opened on the force-bearing sleeve 1. The strip groove 12 is opened along the axial direction of the force-bearing sleeve 1. The sliding block 52 passes through the strip groove 12 and is welded and fixed to the mounting top ring 4. The sliding block 52 is welded and fixed to the strip groove 12 to reduce the possibility of shaking of the sliding block 52 during sliding.

[0044] Reference Figure 5 The driving bolt 53 is threadedly connected to the fixing ring 51, and one end of the driving bolt 53 passes through the fixing ring 51 and abuts against the sliding block 52. By screwing the driving bolt 53, the sliding block 52 can slide toward the side of the anchor cup 02 along the opening direction of the strip groove 12, thereby driving the installation top ring 4 to slide toward the side of the anchor cup 02.

[0045] The implementation principle of the auxiliary tool for replacing the steel strand clip in the embodiment of the present application is as follows: when the steel strand clip 03 needs to be replaced, the force sleeve 1 is passed through the steel strand 01 so that the force sleeve 1 abuts against the anchor cup 02, and then the force-applying member 2 is installed. After the force-applying member 2 is installed, force is applied to the force sleeve 1 by the force-applying member 2, so that the distance between the connection point between the force-applying member 2 and the steel strand 01 and the anchor cup 02 increases. At this time, the steel strand 01 is in an over-tensioned state, and the diameter of the steel strand 01 becomes smaller. Then, the steel strand clip 03 that needs to be replaced is taken out through the give way groove 11, and then the new steel strand clip 03 is reinserted into the anchor cup 02 through the give way groove 11. The force-applying member 2 is controlled to slowly release force so that the steel strand 01 returns to a normal tensioned state. The steel strand 01 and the anchor cup 02 cooperate to re-fix the steel strand clip 03, and the replacement of the steel strand clip 03 is completed.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An auxiliary tool for replacing steel strand clips, characterized in that: include: A force-bearing sleeve (1), wherein the force-bearing sleeve (1) is sleeved on the steel strand (01), and one end of the force-bearing sleeve (1) is used to abut against the anchor cup (02), and a clearance groove (11) is provided on the force-bearing sleeve (1) for the steel strand clip (03) to pass through; A force-applying member (2), the force-applying member (2) being located on a side of the force-bearing sleeve (1) away from the anchor cup (02), the force-applying member (2) being in contact with the force-bearing sleeve (1), and the force-applying member (2) being used to connect with the steel strand (01) so as to increase the distance between the connection point between the force-applying member (2) and the steel strand (01) and the anchor cup (02).

2. The auxiliary tool for replacing the steel strand clip according to claim 1, characterized in that: At least one anti-bending reinforcement rib (3) is connected to the outer peripheral side of the force-bearing sleeve (1).

3. The auxiliary tool for replacing steel strand clips according to claim 1, characterized in that: A mounting top ring (4) is slidably connected inside the force-bearing sleeve (1), the mounting top ring (4) is coaxially arranged with the force-bearing sleeve (1), and a driving member (5) is arranged on the force-bearing sleeve (1) for driving the mounting top ring (4) to slide along the axis of the force-bearing sleeve (1), and the driving member (5) is connected to the mounting top ring (4).

4. The auxiliary tool for replacing the steel strand clip according to claim 3 is characterized in that: The driving member (5) comprises: A fixing ring (51), the fixing ring (51) being connected to the force-bearing sleeve (1), and the fixing ring (51) being sleeved on the force-bearing sleeve (1); A plurality of sliding blocks (52), the force-bearing sleeve (1) is provided with a strip groove (12), the strip groove (12) is opened along the axial direction of the force-bearing sleeve (1), and the sliding block (52) passes through the strip groove (12) and is connected to the mounting top ring (4); A plurality of driving bolts (53) are provided, wherein the driving bolts (53) are threadedly connected to the fixing ring (51), and the driving bolts (53) are in contact with the sliding block (52).

5. The auxiliary tool for replacing the steel strand clip according to claim 3 is characterized in that: The mounting top ring (4) is embedded with a fixed magnet (6).

6. The auxiliary tool for replacing the steel strand clip according to any one of claims 1 to 5, characterized in that: The force-applying member (2) comprises a prestressed jack (21), the prestressed jack (21) is sleeved on the steel strand (01), the body of the prestressed jack (21) is tightly embraced with the steel strand (01), and the piston rod of the prestressed jack (21) is in contact with the force-bearing sleeve (1).

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