Embedded binding wire beam bottom cushion block
By designing pre-embedded tie wire beam bottom pads, the tie wires pass through both sides of the pads and are fixed to the beam stirrups. Combined with sliding connection and compression cylinder fixing, the problem of voids caused by exposed tie wires is solved, and the quality and flatness of concrete pouring are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHTH BUREAU SOUTH CHINA CONSTR CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-05-05
AI Technical Summary
In conventional rebar tying construction, exposed tying wires cause gaps between the spacer and the formwork, affecting the quality of concrete pouring and the flatness of the concrete surface at the bottom of the beam.
Design a pre-embedded wire tie beam bottom pad, with the two ends of the tie wire passing through both sides of the pad body in the width direction and fixed to the beam stirrups. The lower side of the pad body is tightly fitted with the bottom template of the beam. The tie wire is fixed by the upper pad and the extrusion cylinder through sliding connection to prevent the tie wire from falling off.
It improved the problem of gaps caused by exposed tie wires, ensured that the protective layer of the bottom reinforcement of the beam met the requirements, and improved the quality and flatness of concrete pouring.
Smart Images
Figure CN224200145U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of rebar tying technology, and in particular to a pre-embedded tie wire beam bottom pad. Background Technology
[0002] In conventional rebar tying construction, for beams with large cross-sectional dimensions and long beams, in order to ensure that the concrete cover at the bottom of the beam meets the specifications, precast concrete spacers are usually tied to the beam stirrups with wire before the stirrups are inserted into the main beam reinforcement, thereby controlling the concrete cover at the bottom of the beam. However, in this construction method, the wire is tied to the lower surface of the spacer, and the exposed wire causes gaps between the spacer and the formwork, affecting the quality of concrete pouring and the flatness of the concrete surface at the bottom of the beam. Utility Model Content
[0003] To address the technical problem of exposed tie wires causing gaps between the pad and the formwork, which affects the quality of concrete pouring, this application provides a pre-embedded tie wire beam bottom pad.
[0004] This application provides a pre-embedded wire-stretched beam bottom pad block, which adopts the following technical solution:
[0005] A pre-embedded wire beam bottom pad includes a pad body and at least two spaced wires. The middle part of each wire is fixedly connected to the pad body, and both ends extend out of the two sides of the pad body in the width direction. Each wire is spaced from the lower and upper sides of the pad body.
[0006] Optionally, the pad body includes a lower pad and two upper pads that are slidably connected to the upper side of the lower pad. The two upper pads are slidably connected to the lower pad along the width direction, and each of the binding wires is simultaneously fixedly connected to the two upper pads.
[0007] Optionally, the upper side of the lower pad has at least two sliding grooves, each of which extends through both sides of the lower pad in the width direction. The lower sides of the two upper pads are fixedly connected to at least two sliders that are adapted to and slidably connected to the corresponding sliding grooves.
[0008] Optionally, each of the grooves is a dovetail groove or a stepped groove.
[0009] Optionally, the pad body further includes two side blocks, which are fixedly connected to the opposite ends of the two upper pads, and the side blocks extend upwards out of the corresponding upper pads.
[0010] Optionally, each of the two upper pads has at least two support grooves on its upper side, and each of the two side blocks has at least two side blocking grooves, with each side blocking groove communicating with the corresponding support groove.
[0011] Optionally, side slots are provided on the opposite outer sides of the two upper pads, each side slot is vertically connected to the upper side of the corresponding side block, and each side slot corresponds to each tie wire.
[0012] Optionally, both upper pads are provided with at least two through holes in a transverse direction. Each tie wire is threaded through each through hole in a corresponding manner. Each tie wire has a compression cylinder fitted at both ends. Each compression cylinder is inserted into the corresponding through hole and is pressed by the groove wall of the corresponding through hole.
[0013] Optionally, each of the extrusion cylinders has a plurality of deformation grooves extending through its sidewall, and each deformation groove extends through the insertion end of the corresponding extrusion cylinder.
[0014] Optionally, each of the tie wires is pre-embedded and fixedly connected to the upper pad block.
[0015] In summary, this application includes at least the following beneficial technical effects:
[0016] Both ends of each tie wire are passed through from both sides of the width direction of the pad block body and then fixed with the beam stirrups. The tie wire and the lower side of the pad block body form a gap, so that the lower side of the pad block body is in close contact with the bottom formwork of the beam, ensuring that the concrete cover of the bottom reinforcement of the beam meets the requirements, so as to improve the technical problem that the exposed tie wire causes gaps between the pad block body (1) and the formwork, affecting the quality of concrete pouring. Attached Figure Description
[0017] Figure 1 This is a structural diagram of the pre-embedded wire-binding beam bottom pad of this utility model.
[0018] Figure 2 This is a partial exploded view of the pre-embedded wire-binding beam bottom pad block of this utility model.
[0019] Figure 3 This is a partial structural diagram of the pre-embedded wire-binding beam bottom pad block of this utility model, mainly showing the extrusion cylinder.
[0020] Explanation of reference numerals in the attached drawings: 1. Pad body; 11. Lower pad; 111. Slide groove; 12. Upper pad; 121. Slider; 122. Support groove; 123. Side stop groove; 124. Side retaining groove; 125. Perforation; 13. Side stop block; 2. Binding wire; 3. Extrusion cylinder; 31. Deformation groove. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0022] This application discloses a pre-embedded wire-binding beam bottom pad block.
[0023] Reference Figure 1 and Figure 2 The pre-embedded wire beam bottom pad includes a pad body 1 and at least two spaced wires 2. The middle part of each wire 2 is fixedly connected to the pad body 1, and both ends extend out of the pad body 1 in the width direction. Each wire 2 forms a gap with the lower and upper sides of the pad body 1.
[0024] Both ends of the tie wire 2 extend from both sides of the width direction of the pad block body 1 and are then fixed to the beam stirrups. The tie wire 2 and the lower side of the pad block body 1 form a gap, so that the lower side of the pad block body 1 is in close contact with the bottom formwork of the beam, ensuring that the protective layer of the bottom reinforcement of the beam meets the requirements. This improves the technical problem of exposed tie wire 2 causing gaps between the pad block body 1 and the formwork, which affects the quality of concrete pouring.
[0025] In addition, in the prior art, the method of directly binding the tie wire to the pad block and then fixing it to the stirrup and main beam often results in the pad block becoming untied or shifting due to the weak binding between the pad block and the tie wire. In this application, the tie wire 2 is directly fixed to the pad block body 1, which can prevent the tie wire 2 from detaching from the pad block body 1.
[0026] The pad body 1 includes a lower pad 11 and two upper pads 12 that are slidably connected to the upper side of the lower pad 11. The two upper pads 12 are slidably connected to the lower pad 11 along the width direction, and each tie wire 2 is simultaneously fixedly connected to the two upper pads 12.
[0027] During installation, the lower pad 11 is placed on the template to fit tightly against the bottom template of the beam. Then, the stirrups are placed on the two upper pads 12. The two upper pads 12 support the stirrups simultaneously. During this process, the two upper pads 12 can be slid according to the size of the stirrups to adjust the spacing between the two upper pads 12 and ensure stable support for the stirrups.
[0028] In this embodiment, both the lower pad 11 and the upper pad 12 can be made of concrete.
[0029] The lower pad 11 has at least two grooves 111 on its upper side, each groove 111 extending through both sides of the lower pad 11 in the width direction. At least two sliders 121, adapted to and slidably connected to the corresponding grooves 111, are fixedly connected to the lower sides of each of the two upper pads 12. The sliding of the sliders 121 is limited by the grooves 111, thereby limiting the sliding of the upper pads 12.
[0030] Each of the slides 111 is either a dovetail groove or a stepped groove, and all of them are shown as stepped grooves in the figure.
[0031] The slider 121 is limited by the slide groove 111 to prevent the slider 121 from falling out of the slide groove 111, thereby preventing the upper pad block 12 from directly detaching from the lower pad block 11 and ensuring the stable support of the upper pad block 12 for the steel cage.
[0032] In this embodiment, the pad body 1 also includes two side blocks 13, which are fixedly connected to the opposite ends of the two upper pads 12, and the side blocks 13 extend upwards beyond the corresponding upper pads 12. When the upper pads 12 support the stirrups, the two side blocks 13 can support and limit the stirrups from the side, thereby preventing the steel cage from moving on the pads when supporting the steel cage.
[0033] At least two support grooves 122 are provided on the upper side of both upper pad blocks 12, and at least two side stop grooves 123 are provided on both side stop blocks 13. Each side stop groove 123 is connected to the corresponding support groove 122.
[0034] When the stirrups are supported by the upper pad 12, the stirrups can be placed in the connected support groove 122 and side retaining groove 123. The support groove 122 and side retaining groove 123 limit the stirrups and reduce the possibility of the stirrups moving, shaking or even tilting.
[0035] Both upper pad blocks 12 have side slots 124 on their opposite outer sides. Each side slot 124 is vertically connected to the upper side of the corresponding side stop block 13, and each side slot 124 corresponds to a tie wire 2. When the tie wire 2 is bent upward and tied to the stirrup, the tie wire 2 can enter the corresponding side slot 124, which limits the tie wire 2 and prevents the rebar cage from moving.
[0036] The number of sliding grooves 111, tie wires 2, support grooves 122, side retaining grooves 123, and side locking grooves 124 are equal.
[0037] Reference Figures 1 to 3 In one embodiment, both upper pad blocks 12 are provided with at least two through holes 125 in the transverse direction. Each tie wire 2 is passed through each through hole 125 in a corresponding manner. Each end of each tie wire 2 is fitted with a compression cylinder 3. Each compression cylinder 3 is inserted into the corresponding through hole 125 and is pressed by the groove wall of the corresponding through hole 125.
[0038] The upper pad 12, the binding wire 2, and the extrusion cylinder 3 are designed as separate structures for easy processing. During installation, the binding wire 2 is passed through the through hole 125, and then the extrusion cylinder 3 is fitted onto the binding wire 2. Force is then applied to the extrusion cylinder 3 so that the insertion end of the extrusion cylinder 3 is inserted into the through hole 125. The extrusion of the through hole 125 causes the insertion end of the extrusion cylinder 3 to deform and press against the binding wire 2, thus fixing the binding wire 2 and preventing the stirrups and steel cage fixed by the binding wire 2 from moving. Before installing the extrusion cylinder 3, the length of the end of the binding wire 2 can be adjusted by moving the binding wire 2.
[0039] The vertical cross-section of each perforation 125 is a long, narrow groove structure, which allows the binding wire 2 to move up and down within the corresponding perforation 125. This adjusts the height of the binding wire 2 within the corresponding perforation 125 to ensure a good fixation position of the binding wire 2 to the stirrup. After adjusting the height of the binding wire 2, the inner wall of the perforation 125 can be used to press the bound wire 2 by inserting the extrusion cylinder 3, thereby fixing the height of the binding wire 2 and preventing it from moving.
[0040] Each extrusion cylinder 3 has multiple deformation grooves 31 extending through its sidewall, and each deformation groove 31 extends through the corresponding insertion end of the extrusion cylinder 3. When force is applied to the extrusion cylinder 3, causing the insertion end of the extrusion cylinder 3 to be inserted into the perforation 125, the extrusion cylinder 3 is subjected to force, the deformation grooves 31 shrink, causing the insertion end of the extrusion cylinder 3 to deform and press against the binding wire 2.
[0041] Based on the above embodiments, in the natural state, the outer diameter of the insertion end of the extrusion cylinder 3 gradually increases from the other end, and the outer diameter of the insertion end of the extrusion cylinder 3 is smaller than the width of the perforation 125, while the outer diameter of the middle end is larger than the width of the perforation 125, so as to ensure that the extrusion cylinder 3 can be smoothly inserted into the perforation 125, and under the extrusion of the perforation 125, the extrusion cylinder 3 deforms and presses the binding wire 2.
[0042] The other end of the extrusion cylinder 3 has a "T" shaped structure to apply force to the extrusion cylinder 3.
[0043] As a specific processing method of this utility model: First, a solid concrete square lower pad 11 and upper pad 12 are made using a mold, and a sliding groove 111 is opened on the lower pad 11, and a support groove 122, a side blocking groove 123, a side locking groove 124 and a through hole 125 are opened on the upper pad 12; Second, the mold is removed after the lower pad 11 and upper pad 12 have finally solidified.
[0044] During installation, the lower pad 11 is placed on the bottom formwork of the beam, and then the two upper pads 12 are installed on the lower pad 11. The spacing between the two upper pads 12 is adjusted by sliding, and the tie wire 2 is threaded into the corresponding hole 125 of the upper pad 12. The height of the stirrup is predicted, and the position of the tie wire 2 in the hole 125 is adjusted. Then, the compression cylinder 3 is inserted into the hole 125 to fix the position of the tie wire 2. After that, the stirrup is tied and fixed with the tie wire 2. The stirrup is supported in the support groove 122 and the side retaining groove 123, and the tie wire 2 is embedded in the side retaining groove 124. Finally, the tied stirrup is inserted into the main reinforcement of the beam. After controlling the spacing of the stirrup, it is tied and fixed with the main reinforcement. The lower pad 11 is tightly attached to the bottom formwork of the beam to ensure that the concrete cover of the bottom reinforcement of the beam meets the requirements.
[0045] In another embodiment, each binding wire 2 is pre-embedded and fixedly connected to the upper pad 12. This allows the binding wire 2 to be pre-embedded while the upper pad 12 is being formed, so that the binding wire 2 and the upper pad 12 form an integral structure.
[0046] As a specific processing method of this utility model: First, a solid concrete square lower pad 11 and upper pad 12 are made using a mold, and a sliding groove 111 is opened on the lower pad 11, and a support groove 122, a side retaining groove 123, and a side clamping groove 124 are opened on the upper pad 12; Second, before the concrete square pad is initially set, the binding wire 2 is evenly embedded in the upper pad 12. After the lower pad 11 and upper pad 12 made of concrete are finally set, the mold is removed to ensure that the upper pad 12 and the binding wire 2 form a whole.
[0047] During installation, the lower pad 11 is placed on the bottom formwork of the beam, and then the two upper pads 12 are installed on the lower pad 11. The spacing between the two upper pads 12 is adjusted by sliding. Then, the stirrups are tied and fixed with the tie wire 2. The stirrups are supported in the support groove 122 and the side retaining groove 123, and the tie wire 2 is embedded in the side retaining groove 124. Finally, the tied stirrups are inserted into the main reinforcement of the beam. After controlling the spacing of the stirrups, they are tied and fixed with the main reinforcement. The lower pad 11 is tightly attached to the bottom formwork of the beam to ensure that the concrete cover of the bottom reinforcement of the beam meets the requirements.
[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A pre-embedded wire-stretched beam bottom pad, characterized in that: It includes a pad body (1) and at least two spaced tie wires (2). The middle part of each tie wire (2) is fixedly connected to the pad body (1), and both ends extend out of the two sides of the pad body (1) in the width direction. Each tie wire (2) forms a gap with the lower and upper sides of the pad body (1).
2. The pre-embedded wire-binding beam bottom pad according to claim 1, characterized in that: The pad body (1) includes a lower pad (11) and two upper pads (12) that are slidably connected to the upper side of the lower pad (11). The two upper pads (12) are slidably connected to the lower pad (11) along the width direction, and each of the binding wires (2) is simultaneously fixedly connected to the two upper pads (12).
3. The pre-embedded wire-reinforced beam bottom pad according to claim 2, characterized in that: The lower pad (11) has at least two grooves (111) on its upper side. Each groove (111) extends through both sides of the lower pad (11) in the width direction. The lower sides of the two upper pads (12) are fixedly connected with at least two sliders (121) that are adapted to and slidably connected to the corresponding grooves (111).
4. The pre-embedded wire-binding beam bottom pad according to claim 3, characterized in that: Each of the aforementioned grooves (111) is a dovetail groove or a stepped groove.
5. The pre-embedded wire-binding beam bottom pad according to claim 2, characterized in that: The pad body (1) also includes two side blocks (13), which are fixedly connected to the opposite ends of the two upper pads (12), and the side blocks (13) extend upwards from the corresponding upper pads (12).
6. The pre-embedded wire-binding beam bottom pad according to claim 5, characterized in that: At least two support grooves (122) are provided on the upper side of both upper pads (12), and at least two side stop grooves (123) are provided on both side stop blocks (13). Each side stop groove (123) is connected to the corresponding support groove (122).
7. The pre-embedded wire-binding beam bottom pad according to claim 5, characterized in that: The two upper pads (12) are provided with side slots (124) on their opposite outer sides. Each side slot (124) is vertically connected to the upper side of the corresponding side block (13), and each side slot (124) is provided in a one-to-one correspondence with each tie wire (2).
8. The pre-embedded wire-reinforced beam bottom pad according to any one of claims 2-7, characterized in that: Both upper pads (12) are horizontally perforated with at least two through holes (125). Each tie wire (2) is threaded through each through hole (125) in a corresponding manner. Each tie wire (2) has a compression cylinder (3) sleeved at both ends. Each compression cylinder (3) is inserted into the corresponding through hole (125) and pressed by the groove wall of the corresponding through hole (125).
9. The pre-embedded wire-reinforced beam bottom pad according to claim 8, characterized in that: Each of the extrusion cylinders (3) has a plurality of deformation grooves (31) extending through its sidewall, and each of the deformation grooves (31) extends through the insertion end of the corresponding extrusion cylinder (3).
10. The pre-embedded wire-binding beam bottom pad according to any one of claims 2-7, characterized in that: Each of the tie wires (2) is pre-embedded and fixedly connected to the upper pad block (12).