Outer wall wood pattern screw pull piece structure

By using the exterior wall wooden mold screw pulling piece structure in exterior wall construction, and using the combination of the wall mold pulling piece and hook bolts to erect temporary support components to reinforce the wall keel, the problem of difficult screw hole sealing and waterproofing treatment in exterior wall construction is solved, and high-quality exterior wall treatment and cost reduction are achieved.

CN222893983UActive Publication Date: 2025-05-23THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
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Patent Information

Application Number
CN202421734083.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2025-05-23
Estimated Expiration
2034-07-22

AI Technical Summary

Technical Problem

In exterior wall construction, after the formwork is reinforced by the pulling screw, the screw holes and waterproofing treatment are required when removing the formwork, which leads to high difficulty in construction, is not tightly sealed or the waterproof coating is not applied well, which is prone to hidden dangers of exterior wall leakage.

Method used

The structure of the exterior wall wooden mold screw pull tab is adopted. The wall mold pull tab is passed through the wall template and hooked with hook bolts. A temporary support component is set up to erect the main keel of the wall on the outside of the secondary keel of the wall, and reinforce and tighten through butterfly card, pad plate and nut to reduce the screw eye sealing process.

Benefits of technology

The exterior wall has no screw holes after the mold is removed, which avoids the problem of insufficient screw eye sealing, reduces the probability of exterior wall leakage, improves the quality of the exterior wall and reduces the treatment cost.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222893983U_ABST
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Abstract

The utility model discloses an outer wall wood pattern screw rod pulling piece structure which comprises two symmetrically-arranged wall formworks, a plurality of wall body secondary keels are installed on the opposite sides of the two wall formworks, two symmetrical wall formwork pulling pieces are arranged between the two wall formworks in a penetrating mode, the two ends of each wall formwork pulling piece extend to the outer sides of the wall formworks, and the wall body secondary keels are connected with the wall formwork pulling pieces in a penetrating mode. Two symmetrical wall main keels are arranged on the outer sides of the multiple wall auxiliary keels. The wall formwork pulling piece penetrates through the two wall formworks and is hooked by the two hook bolts, then the wall main keel is erected on the outer side of the wall secondary keel through the temporary supporting assembly, the butterfly clamps, the base plates and the nuts are sequentially arranged on the surfaces of the hook bolts in a sleeving mode, then the nuts are screwed, and the wall formwork pulling piece is fixed to the wall formwork through the hook bolts. The wall main keel is reinforced, the wall formwork pulling piece is tensioned, then the temporary supporting assembly is taken down, pouring work can be carried out, after the formwork is removed, the wall formwork pulling piece is knocked off, outer wall treatment work can be completed, and the screw hole plugging procedure is reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of wall formwork construction, in particular to an external wall wooden formwork screw pull piece structure. Background Art

[0002] At present, the external wall formwork reinforcement on the construction site uses tension screws to reinforce the formwork, but after the formwork is removed, it is necessary to first use trial mortar to seal the screw holes, and then apply a layer of polyurethane waterproof coating on the surface of the sealed mortar for waterproofing treatment. Due to the difficulty of external wall construction, the sealing of screw eyes is prone to loose sealing or poor effect of waterproof coating, which is prone to hidden dangers of external wall leakage. Therefore, we proposed an external wall wooden formwork screw pull-tab structure, which uses pull-tabs for connection to ensure that there are no screw holes in the external wall after the formwork is removed. There is no need to seal the screw eyes after the formwork is removed, which reduces the probability of external wall leakage due to unqualified sealing process, improves the quality of the external wall, and reduces the cost of external wall treatment. Utility Model Content

[0003] The utility model aims to provide a screw pull-tab structure for an exterior wall wood formwork, which uses pull-tabs for connection, ensures that there are no screw holes in the exterior wall after the formwork is removed, and does not need to be sealed after the formwork is removed, thereby reducing the probability of exterior wall leakage due to unqualified sealing process construction of the screw eyes, improving the exterior wall quality, and reducing the cost of exterior wall treatment. It solves the problem that the exterior wall formwork reinforcement at the current construction site uses a pair of pull screws to reinforce the formwork, but after the formwork is removed, it is necessary to first use mortar to seal the screw holes, and then apply a layer of polyurethane waterproof coating on the surface of the sealed mortar for waterproof treatment. Due to the difficulty of exterior wall construction, the sealing of screw eyes is prone to loose sealing or poor effect of waterproof coating, which easily leads to the hidden danger of exterior wall leakage.

[0004] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: an external wall wooden formwork screw pull-tab structure, which comprises two symmetrically arranged wall formworks, a plurality of wall secondary keels are installed on the opposite sides of the two wall formworks, two symmetrical wall formwork pull-tabs are inserted between the two wall formworks, both ends of the wall formwork pull-tabs extend to the outside of the wall formworks, two symmetrical wall main keels are arranged on the outsides of the plurality of wall secondary keels, hook bolts are hung at the two ends of the wall formwork pull-tabs, the ends of the hook bolts pass through the two wall main keels and are sleeved with butterfly clips on the surfaces, the inner sides of the butterfly clips are fitted on the two wall main keels, a pad and a nut sleeved on the surfaces of the hook bolts are arranged on the side of the butterfly clip away from the wall main keel, the nut is threadedly connected to the hook bolt, and a temporary support assembly is arranged between the wall secondary keel and the wall main keel.

[0005] The utility model is used for the screw pull piece structure of the exterior wall wood formwork as described above, further: both ends of the wall form pull piece are provided with connecting heads, and the connecting heads are provided with hanging holes for the hook bolts to pass through.

[0006] The utility model is used for the screw pull piece structure of the exterior wall wooden formwork as described above, further comprising: a perforated gap for the connector to pass through is provided on the wall formwork.

[0007] The utility model is used for the screw pull piece structure of the exterior wall wood formwork as described above, further: the temporary support component includes a U-shaped shell sleeved on the surface of the secondary keel of the wall, one side of the U-shaped shell is fixedly connected to an arc-shaped supporting plate, and the main keel of the wall is placed in the inner cavity of the arc-shaped supporting plate.

[0008] The utility model is used for the screw pull piece structure of the exterior wall wood formwork as described above, further: a threaded column is arranged through one side of the U-shaped sleeve, the surface of the threaded column is threadedly connected to the U-shaped sleeve, and one end of the threaded column extends to the inner cavity of the U-shaped sleeve and is rotatably connected to a clamping plate.

[0009] The screw pull-tab structure for exterior wall wood formwork of the utility model is further characterized in that: the clamping plate is slidably connected to the inner cavity of the U-shaped casing, and one side of the clamping plate is in contact with the inner wall of the U-shaped casing.

[0010] The utility model is used for the screw pull piece structure of the exterior wall wooden formwork as described above, further comprising: a hand wheel is fixedly mounted on one end of the threaded column away from the clamping plate.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model passes the wall formwork tab through two wall formworks and hooks them with two hook bolts, then sets the main wall keel on the outside of the secondary wall keel through the temporary support assembly, sets the butterfly card, the pad and the nut on the surface of the hook bolt in sequence, then tightens the nut, reinforces the main wall keel and tightens the wall formwork tab, then removes the temporary support assembly to carry out the pouring work, after the formwork is removed, knocks off the wall formwork tab, and completes the exterior wall processing work, reduces the screw eye blocking process, and can achieve the connection using the tab, ensuring that there is no screw hole in the exterior wall after the formwork is removed, and the formwork There is no need to seal the screw eyes after demolition, which reduces the probability of external wall leakage due to unqualified sealing process of screw eyes, improves the quality of external walls, reduces the cost of external wall treatment, and solves the problem of using tension screws to reinforce the external wall formwork at the current construction site, but after removing the formwork, it is necessary to first use mortar to seal the screw holes, and then apply a layer of polyurethane waterproof coating on the surface of the sealed mortar for waterproofing treatment. Due to the difficulty of external wall construction, the sealing of screw eyes is prone to loose sealing or poor effect of waterproof coating, which may lead to hidden dangers of external wall leakage.

[0013] 2. The utility model sets a temporary support component, puts the U-shaped shell on the surface of the secondary keel of the wall, and then turns the hand wheel to drive the threaded column to rotate. Due to the thread, the threaded column drives the clamping plate to move until the clamping plate is squeezed on the secondary keel of the wall, thereby fixing the U-shaped shell. Then, the main keel of the wall is placed in the inner cavity of the two horizontal arc-shaped supporting plates to provide temporary support for the main keel of the wall, so that the user can fix and install the main keel of the wall conveniently.

[0014] 3. The utility model can limit the movement of the clamping plate by fitting the clamping plate with the inner wall of the U-shaped housing, effectively preventing the clamping plate from rotating with the rotation of the threaded column, and improving the stability of the clamping plate movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0017] Figure 2 This is a three-dimensional disassembly schematic diagram of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of a wall formwork pull tab according to an embodiment of the utility model;

[0019] Figure 4 The present invention is a three-dimensional schematic diagram of a temporary support assembly according to an embodiment of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Wall formwork, 2. Secondary wall keel, 3. Wall formwork pull tab, 4. Main wall keel, 5. Hook bolt, 6. Butterfly card, 7. Pad, 8. Nut, 9. Temporary support assembly, 91. U-shaped shell, 92. Arc support plate, 93. Threaded column, 94. Clamp, 95. Handwheel, 10. Connector, 11. Hanging hole, 12. Perforated gap. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the screw pull-tab structure of the exterior wall wood formwork of the present invention will be described with reference to the accompanying drawings.

[0023] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0024] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0025] Figure 1-4The utility model discloses an external wall wood form screw pull piece structure of an embodiment, which comprises two symmetrically arranged wall formworks 1, a plurality of wall secondary keels 2 are installed on the opposite sides of the two wall formworks 1, two symmetrical wall form pull pieces 3 are inserted between the two wall formworks 1, both ends of the wall form pull piece 3 are extended to the outside of the wall formworks 1, two symmetrical wall main keels 4 are arranged on the outside of the plurality of wall secondary keels 2, hook bolts 5 are hung at the two ends of the wall form pull piece 3, connecting heads 10 are arranged at the two ends of the wall form pull piece 3, and hanging holes 11 for the hook bolts 5 to pass through are arranged on the connecting head 10, and the wall form The plate 1 is provided with a perforated gap 12 for the connecting head 10 to pass through, the end of the hook bolt 5 passes through the two main wall keels 4 and is sleeved with a butterfly clip 6 on the surface, the inner side of the butterfly clip 6 is fitted on the two main wall keels 4, and the side of the butterfly clip 6 away from the main wall keel 4 is provided with a pad 7 and a nut 8 sleeved on the surface of the hook bolt 5, the nut 8 is threadedly connected to the hook bolt 5, and a temporary support assembly 9 is provided between the wall secondary keel 2 and the wall main keel 4, the temporary support assembly 9 includes a U-shaped casing 91 sleeved on the surface of the wall secondary keel 2, and one side of the U-shaped casing 91 is fixedly connected with an arc-shaped bearing The support plate 92 and the main keel 4 of the wall are placed in the inner cavity of the arc-shaped support plate 92. A threaded column 93 is provided on one side of the U-shaped casing 91. The surface of the threaded column 93 is threadedly connected to the U-shaped casing 91. One end of the threaded column 93 extends to the inner cavity of the U-shaped casing 91 and is rotatably connected with a clamping plate 94. The clamping plate 94 is slidably connected to the inner cavity of the U-shaped casing 91. One side of the clamping plate 94 fits with the inner wall of the U-shaped casing 91. A hand wheel 95 is fixedly installed on one end of the threaded column 93 away from the clamping plate 94. Through the setting of the temporary support component 9, the U-shaped casing 91 is sleeved on the surface of the secondary keel 2 of the wall, and then screwed. The hand wheel 95 drives the threaded column 93 to rotate, and the thread makes the threaded column 93 drive the clamping plate 94 to move until the clamping plate 94 is squeezed on the secondary wall keel 2, thereby fixing the U-shaped shell 91. Then the main wall keel 4 is placed in the inner cavity of the two horizontal arc-shaped supporting plates 92 to provide temporary support for the main wall keel 4, which is convenient for the user to fix and install the main wall keel 4. The clamping plate 94 fits with the inner wall of the U-shaped shell 91, which can limit the movement of the clamping plate 94, effectively preventing the clamping plate 94 from rotating with the rotation of the threaded column 93, and improving the stability of the movement of the clamping plate 94.

[0026] Working principle: a perforated slit 12 is opened on the wall formwork 1 for the end connector 10 of the wall formwork pull piece 3 to pass through, and the formwork composed of the wall formwork 1 and the wall secondary keel 2 is installed to the corresponding position. According to the position of the perforated slit 12, the user installs the temporary support component 9 on the wall secondary keel 2, places the wall main keel 4 in the inner cavity of two horizontal arc-shaped supporting plates 92, and supports the wall main keel 4. Then, the wall formwork pull piece 3 passes through the perforated slit 12 on the wall main keel 4, picks up the hook bolt 5, passes it between the two wall main keels 4 and hooks it in the hanging hole 11 of the connector 10, and then uses the butterfly clip 6 to be sleeved on the surface of the hook bolt 5, so that the inner side of the butterfly clip 6 is against the two wall main keels 4, and then the pad 7 and the nut 8 are successively put on and tightened and fixed. At this time, the wall main keel 4 is fixed, and the user can remove the temporary support component 9 for easy turnover next time;

[0027] After the wall concrete is demolded, unscrew the nut 8, remove the pad 7 and the butterfly card 6 from the surface of the hook bolt 5 in turn, remove the main wall keel 4 and the secondary wall keel 2, so that the hook bolt 5 is withdrawn from the hanging hole 11 for collection, and then the wall formwork 1 can be removed for the next turnover use.

[0028] In summary, the screw pull-tab structure of the exterior wall wood formwork is that the wall form pull-tab 3 passes through two wall formworks 1 and is hooked with two hook bolts 5, and then the main wall keel 4 is erected on the outside of the secondary wall keel 2 through the temporary support assembly 9, and the butterfly card 6, the pad 7 and the nut 8 are sequentially sleeved on the surface of the hook bolt 5, and then the nut 8 is tightened to reinforce the main wall keel 4 and tighten the wall form pull-tab 3, and then the temporary support assembly 9 is removed to carry out the pouring work, and after the formwork is removed, the wall form pull-tab 3 is knocked off to complete the exterior wall processing work, reduce the screw eye blocking process, and achieve the use of pull-tabs for connection, to ensure It can be proved that there are no screw holes in the exterior wall after the formwork is removed, and there is no need to seal the screw eyes after the formwork is removed, which reduces the probability of exterior wall leakage due to unqualified sealing process of screw eyes, improves the quality of exterior wall, and reduces the cost of exterior wall treatment. It solves the problem that the current construction site uses tension screws to reinforce the formwork, but after the formwork is removed, it is necessary to try to use mortar to seal the screw holes, and then apply a layer of polyurethane waterproof coating on the surface of the sealed mortar for waterproofing treatment. Due to the difficulty of exterior wall construction, the sealing of screw eyes is prone to loose sealing or poor effect of waterproof coating, which may easily lead to hidden dangers of exterior wall leakage.

[0029] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the utility model to achieve the purpose of the utility model.

Claims

1. A screw pull tab structure for an exterior wall wood formwork, characterized in that: The invention comprises two symmetrically arranged wall formworks (1), a plurality of wall secondary keels (2) are installed on opposite sides of the two wall formworks (1), two symmetrical wall formwork pull tabs (3) are inserted between the two wall formworks (1), both ends of the wall formwork pull tabs (3) extend to the outside of the wall formworks (1), two symmetrical wall main keels (4) are arranged on the outside of the plurality of wall secondary keels (2), and hook bolts (5) are hung on the two ends of the wall formwork pull tabs (3), the hook bolts The end of the (5) passes through the two main wall keels (4) and is sleeved with a butterfly clip (6) on the surface, the inner side of the butterfly clip (6) is fitted on the two main wall keels (4), and the side of the butterfly clip (6) away from the main wall keel (4) is provided with a pad (7) and a nut (8) sleeved on the surface of the hook bolt (5), the nut (8) is threadedly connected to the hook bolt (5), and a temporary support component (9) is provided between the secondary wall keel (2) and the main wall keel (4).

2. The screw pull tab structure of the exterior wall wood formwork according to claim 1, characterized in that: Both ends of the wall form pull tab (3) are provided with connecting heads (10), and the connecting heads (10) are provided with hanging holes (11) for the hook bolts (5) to pass through.

3. The screw pull tab structure of the exterior wall wood formwork according to claim 2, characterized in that: The wall formwork (1) is provided with a perforated slit (12) for the connecting head (10) to pass through.

4. The screw pull tab structure of the exterior wall wood formwork according to claim 3, characterized in that: The temporary support assembly (9) comprises a U-shaped casing (91) sleeved on the surface of the wall secondary keel (2), one side of the U-shaped casing (91) is fixedly connected to an arc-shaped supporting plate (92), and the wall primary keel (4) is placed in the inner cavity of the arc-shaped supporting plate (92).

5. The screw pull tab structure of the exterior wall wood formwork according to claim 4, characterized in that: A threaded column (93) is provided through one side of the U-shaped casing (91), the surface of the threaded column (93) is threadedly connected to the U-shaped casing (91), and one end of the threaded column (93) extends to the inner cavity of the U-shaped casing (91) and is rotatably connected to a clamping plate (94).

6. The screw pull tab structure of the exterior wall wood formwork according to claim 5, characterized in that: The clamping plate (94) is slidably connected to the inner cavity of the U-shaped casing (91), and one side of the clamping plate (94) is in contact with the inner wall of the U-shaped casing (91).

7. The screw rod pull-tab structure of the exterior wall wood formwork according to claim 6, characterized in that: A hand wheel (95) is fixedly mounted on one end of the threaded column (93) away from the clamping plate (94).