Bracing device for fixing formwork and construction method thereof

Abstract

The present invention relates to a tensioning device for fixing formworks and a construction method thereof, comprising: a screw rod for passing through a first formwork and a second formwork to be tensioned and fixed, one end of the screw rod corresponding to the first formwork forming a fixing part for abutting against the first formwork, and the other end of the screw rod passing through the second formwork to form an exposed section; a supporting member sleeved on the exposed section of the screw rod and for abutting against the second formwork, the supporting member being movable back and forth along the screw rod and having elasticity; and a locking member connected to the supporting member and capable of being embedded in the supporting member. By embedding the locking member in the supporting member, the supporting member is deformed and the screw rod is clamped, so as to fix the supporting member on the screw rod. The present invention effectively solves the problem of low installation efficiency of the tensioning device, reduces the installation and removal time of the tensioning device, and the tensioning device can be conveniently withdrawn from the formwork, improving the construction efficiency.

Description

Technical Field

[0001] The invention relates to the field of building construction, in particular to a pulling device for fixing a template and a construction method thereof. Background Art

[0002] When the formwork is spliced, the formwork is mostly fixed by tensioning screws. This fixing method currently mostly uses mountain-shaped clamps to support the formwork to fix the formwork. The fan-shaped clamps are passed through the screws and then the positions of the mountain-shaped clamps are fixed by nuts and spacers, thereby supporting the corresponding formwork. However, in actual construction, this method requires a long time to screw the nut into place due to the long length of the screw. When removing the nut, it takes a long time to screw it, which makes the installation efficiency low, making the installation and removal of the mountain-shaped clamps very inconvenient, affecting the construction efficiency. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a tensioning device for fixing a formwork and a construction method thereof, which solves the problem of low installation efficiency of the tensioning device and reduces the installation and removal time of the tensioning device. The tensioning device can be easily pulled out from the formwork, thereby improving construction efficiency.

[0004] The technical solution to achieve the above purpose is:

[0005] The present invention provides a pulling device for fixing a template, comprising:

[0006] A screw rod is provided to penetrate the first template and the second template to be pulled and fixed, one end of the screw rod corresponding to the first template forms a fixing portion for abutting against the first template, and the other end of the screw rod passes through the second template to form an exposed section;

[0007] A supporting member sleeved on the exposed section of the screw and used to abut against the second template, the supporting member can move back and forth along the screw and has elasticity; and

[0008] A locking member connected to the supporting member and capable of being embedded in the supporting member is embedded in the supporting member through the locking member to support the supporting member so that the supporting member is deformed and the screw rod is clamped, thereby fixing the supporting member to the screw rod.

[0009] The present invention adopts a pulling device for fixing the formwork. The screw rod is passed through the two formworks to be connected by pulling, and the position of the supporting member is adjusted along the screw rod. The locking member connected to the supporting member is embedded in the supporting member so that the supporting member is fixed on the screw rod. There is no need to additionally set a spacer block and a nut, etc. Only one supporting member needs to be set, and then the supporting member can be fixed by the cooperation of the locking member and the supporting member, which reduces the time for screwing the nut, solves the problem of low installation efficiency of the pulling device, reduces the installation and removal time of the pulling device, and the pulling device can be easily pulled out from the formwork, thereby improving construction efficiency.

[0010] A further improvement of the tensioning device for fixing formwork in the present invention lies in that the supporting member includes a claw portion that is arranged around the screw rod and has elasticity, and the diameter of the claw portion near the locking member is smaller than the diameter of the portion far from the locking member and is conical;

[0011] The locking member includes a hoop portion sleeved on the claw portion, and the diameter of the hoop portion is smaller than the diameter of the end of the claw portion far from the locking member. By inserting the locking member into the supporting member, the hoop portion clamps the claw portion, so that the claw portion tightens and clamps the screw rod.

[0012] A further improvement of the tensioning device for fixing formwork in the present invention lies in that the claw portion includes a plurality of elastic cards arranged around the screw rod, and the cards are inclined and enclose into a conical shape.

[0013] A further improvement of the tensioning device for fixing formwork in the present invention lies in that the card is made of a reed.

[0014] A further improvement of the tensioning device for fixing formwork in the present invention lies in that the supporting member and the locking member are connected by a threaded fit.

[0015] A further improvement of the tensioning device for fixing formwork in the present invention lies in that the supporting member includes a positioning cylinder sleeved on the screw rod, and an internal thread is formed on the inner side wall of the positioning cylinder;

[0016] The locking member includes a connecting cylinder sleeved on the screw rod and matching with the positioning cylinder. The connecting cylinder is provided with an external thread corresponding to the internal thread on the outer side wall to be screwed with the positioning cylinder. By screwing the locking member, the locking member is inserted into the supporting member.

[0017] A further improvement of the tensioning device for fixing formwork in the present invention lies in that a plurality of card slots are arranged at intervals along the length direction of the screw rod.

[0018] A further improvement of the tensioning device for fixing formwork in the present invention lies in that a handle is installed at one end of the locking member far from the supporting member, and a through hole for the screw rod to pass through is formed on the handle.

[0019] The present invention provides a construction method for a tensioning device for fixing formwork, including the following steps:

[0020] Pass the screw rod through the first formwork and the second formwork to be tensioned and fixed, and press the fixing portion against the first formwork. Move the supporting member along the screw rod until the supporting member abuts against the second formwork. Insert the locking member into the supporting member to fix the supporting member on the screw rod, so as to tension and fix the first formwork and the second formwork, and perform pouring in the first formwork and the second formwork.

[0021] A further improvement in the construction method of the tensioning device for fixing formwork in the present invention lies in that the supporting member includes a positioning cylinder sleeved on the screw rod and a claw portion fixed to the positioning cylinder, and the locking member includes a connecting cylinder screwed onto the positioning cylinder and a hoop portion fixed to the connecting cylinder and sleeved on the claw portion;

[0022] Screw the connecting cylinder in the direction close to the positioning cylinder, so that the locking member is embedded in the supporting member, and the hoop portion clamps the claw portion, so that the claw portion tightens and clamps the screw rod, thereby fixing the supporting member to the screw rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a usage state diagram of the tensioning device for fixing formwork in the present invention.

[0024] Figure 2 It is a front cross-sectional view of the supporting member part of the tensioning device for fixing formwork in the present invention.

[0025] Figure 3 It is a top view of the supporting member part of the tensioning device for fixing formwork in the present invention.

[0026] Figure 4 It is a front cross-sectional view of the locking member part of the tensioning device for fixing formwork in the present invention.

[0027] Figure 5 It is a top view of the locking member part of the tensioning device for fixing formwork in the present invention.

[0028] Figure 6 It is a front view of the screw rod part of the tensioning device for fixing formwork in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Refer to Figure 1 , the present invention provides a tensioning device for fixing formwork. By passing a screw rod through two formworks to be tensioned and connected, and then adjusting the position of the supporting member along the screw rod, and embedding the locking member connected to the supporting member into the supporting member so that the supporting member is fixed on the screw rod, there is no need to additionally set pads, nuts, etc. Only one supporting member needs to be set, and then it can be fixed through the cooperation of the locking member and the supporting member, that is, the time for screwing the nut is reduced, the problem of low installation efficiency of the tensioning device is solved, the installation and removal time of the tensioning device is reduced, and the tensioning device can be conveniently withdrawn from the formwork, improving the construction efficiency. The tensioning device for fixing formwork in the present invention will be described below in conjunction with the accompanying drawings.

[0031] Refer to Figure 1 , Figure 1 It is a usage state diagram of the tensioning device for fixing formwork in the present invention. The following combines Figure 1, the tension device for fixing the formwork of the present invention will be described.

[0032] As Figure 1 and Figure 6 shown, the tension device for fixing the formwork of the present invention includes:

[0033] A screw rod 11 for passing through a first formwork 21 and a second formwork 22 to be tension-fixed. A fixing portion 111 for abutting against the first formwork 21 is formed at one end of the screw rod 11 corresponding to the first formwork 21, and the other end of the screw rod 11 passes through the second formwork 22 to form an exposed section;

[0034] A supporting member 12 sleeved on the exposed section of the screw rod 11 and for abutting against the second formwork 22. The supporting member 12 can move back and forth along the screw rod 11 and has elasticity; and

[0035] A locking member 13 connected to the supporting member 12 and capable of being embedded in the supporting member 12. By embedding the locking member 13 into the supporting member 12 to squeeze the supporting member 12, the supporting member 12 is deformed and the screw rod 11 is clamped, so as to fix the supporting member 12 on the screw rod 11.

[0036] Preferably, the fixing portion 111 is circular ring-shaped, which is convenient for being drawn out from the first formwork 21 and the second formwork 22 after the construction is completed.

[0037] More preferably, as shown in Figure 6 shown, a plurality of card slots 112 are arranged at intervals along the length direction of the screw rod 11. By the supporting member 12 being stuck in the card slots 112, the supporting member 12 is more firmly fixed on the screw rod 11.

[0038] As a preferred embodiment of the present invention, as shown in Figure 1 shown, the supporting member 12 includes a claw portion 122 arranged around the screw rod 11 and having elasticity. The diameter of the claw portion 122 near the locking member 13 is smaller than the diameter of the portion far from the locking member 13 and is conical;

[0039] The locking member 13 includes a hoop portion 132 sleeved on the claw portion 12. The diameter of the hoop portion 132 is smaller than the diameter of one end of the claw portion 122 far from the locking member 13. By the locking member 13 being embedded in the supporting member 12, the hoop portion 132 clamps the claw portion 122, so that the claw portion 12 tightens and clamps the screw rod 11.

[0040] Specifically, as shown in Figure 2 and Figure 3 shown, the claw portion 122 includes a plurality of elastic cards arranged around the screw rod 11. The cards are inclined and enclose to form a conical shape.

[0041] Preferably, the cards are made of spring pieces.

[0042] Specifically, as shown inFigure 4 and Figure 5 As shown in Figure 5 , the hoop part 132 is conical and made of inelastic material such as steel plate.

[0043] Furthermore, the supporting member 12 and the locking member 13 are connected by threaded fit.

[0044] Specifically, as shown in combination with Figure 4 and Figure 5 , the supporting member 12 includes a positioning cylinder 121 sleeved on the screw rod 11. An internal thread is formed on the inner side wall of the positioning cylinder 121, and the claw part 122 is fixed in the positioning cylinder 121; Figure 4 and Figure 5 As shown in Figure 4 and Figure 5 , the supporting member 12 includes a positioning cylinder 121 sleeved on the screw rod 11. An internal thread is formed on the inner side wall of the positioning cylinder 121, and the claw part 122 is fixed in the positioning cylinder 121;

[0045] The locking member 13 includes a connecting cylinder 131 sleeved on the screw rod 11 and matching with the positioning cylinder 121. The connecting cylinder 131 is provided with an external thread corresponding to the internal thread on the outer side wall to be screwed with the positioning cylinder 121. By screwing the locking member 13, the locking member 13 is embedded into the supporting member 12. The hoop part 132 is fixed in the positioning cylinder 131, and part of it extends outwards from the positioning cylinder 131.

[0046] Among them, since the locking member 13 is screwed to the supporting member 12 by means of threaded connection and then sleeved on the screw rod 11 together, after adjusting the position of the supporting member 12 during actual use, screwing the locking member 13 can fix the supporting member 12. The fixing of the first template 21 and the second template 22 is completed by the way of "one movement and one screwing", that is, the fixing of the supporting member 12 is completed by the way of "one movement and one screwing", without installing U-shaped clamps, pads and nuts, and the installation efficiency is high.

[0047] Preferably, a handle 133 is installed at one end of the locking member 13 away from the supporting member 12. A through hole for the screw rod 11 to pass through is formed on the handle 133, which is convenient for screwing the locking member 13.

[0048] The specific implementation manner of the present invention is as follows:

[0049] Holes matching with the screw rod 11 are formed on the first template 21 and the second template 22, and the screw rod 11 is passed through the first template 21 and the second template 22 from the holes;

[0050] The supporting member 12 and the locking member 13 are screwed and connected by screwing the connecting cylinder 131 to the positioning cylinder 121. The hoop part 132 is sleeved outside the claw part 122. In order to avoid the claw part 122 from tightening and being difficult to be sleeved on the screw rod 11, the position of the hoop part 132 is adjusted by screwing the locking member 13 so that the cards of the claw part 122 are all in a natural state;

[0051] Orient the side of the support member 12 away from the locking member 13 towards the fixing portion 111, slip the support member 12 onto the screw rod 11, move the support member 12 along the screw rod 11 to adjust the position of the support member 12. After the adjustment is completed, turn the locking member 13 by the handle 133 so that the hoop portion 132 of the locking member 13 is inserted into the positioning cylinder 121. Since the card is inclined, as the hoop portion 132 is inserted, the hoop portion 132 clamps the claw portion 122, causing the claw portion 122 to tighten and engage with the card slot 112 on the screw rod 11, thereby fixing the support member 12 to the screw rod 11;

[0052] At this time, the fixing portion 111 abuts against the first template 21, and the support member 12 abuts against the second template 22. Pour concrete between the first template 21 and the second template 22. After the pouring is completed, turn the locking member 13 so that the hoop portion 132 moves towards the end of the claw portion 122, thereby loosening the claw portion 122, causing the claw portion 122 to relax and disengage from the card slot 112, so that the support member 12 can slide back and forth on the screw rod 11;

[0053] Remove the support member 12 and the locking member 13 from the screw rod 11. Then hold the fixing portion 111 and pull out the screw rod 11 from the first template 21 and the second template 22. After cleaning, it can be recycled.

[0054] The construction method of the tensioning device for fixing templates in the present invention, combined with Figure 1 as shown, includes the following steps:

[0055] Pass the screw rod 11 through the first template 21 and the second template 22 to be tensioned and fixed, and press the fixing portion 111 against the first template 21. Move the support member 12 along the screw rod 11 until the support member 12 abuts against the second template 22. Insert the locking member 13 into the support member 12 to fix the support member 12 to the screw rod 11, thereby tensioning and fixing the first template 21 and the second template 22, and pour concrete into the first template 21 and the second template 22.

[0056] Further, the support member 12 includes a positioning cylinder 121 sleeved on the screw rod 11 and a claw portion 122 fixed to the positioning cylinder 121, and the locking member 13 includes a connecting cylinder 131 screwed to the positioning cylinder 121 and a hoop portion 132 fixed to the connecting cylinder 131 and sleeved on the claw portion 122;

[0057] Turn the connecting cylinder 131 in the direction close to the positioning cylinder 121 so that the locking member 13 is inserted into the support member 12, and the hoop portion 132 clamps the claw portion 122, causing the claw portion 122 to tighten and engage with the screw rod 11, thereby fixing the support member 12 to the screw rod 11.

[0058] The specific construction method of the present invention is as follows:

[0059] Holes matching the screw 11 are formed in the first template 21 and the second template 22, and the screw 11 is passed through the first template 21 and the second template 22 from the holes.

[0060] The supporting member 12 and the locking member 13 are screwed together by screwing the connecting cylinder 131 onto the positioning cylinder 121. The hoop portion 132 is sleeved outside the claw portion 122. To prevent the claw portion 122 from tightening and making it difficult to sleeve onto the screw 11, the position of the hoop portion 132 is adjusted by screwing the locking member 13, so that the cards of the claw portion 122 are all in a natural state.

[0061] The side of the supporting member 12 away from the locking member 13 is oriented towards the fixing portion 111, and the supporting member 12 is sleeved onto the screw 11. The supporting member 12 is moved along the screw 11 to adjust the position of the supporting member 12. After the adjustment is completed, the locking member 13 is screwed by the handle 133, so that the hoop portion 132 of the locking member 13 is embedded into the positioning cylinder 121. Since the cards are inclined, as the hoop portion 132 is embedded, the hoop portion 132 tightens the claw portion 122, so that the claw portion 122 tightens and is stuck in the card slot 112 on the screw 11, and thus the supporting member 12 is fixed on the screw 11.

[0062] At this time, the fixing portion 111 abuts against the first template 21, and the supporting member 12 abuts against the second template 22. Pouring is carried out between the first template 21 and the second template 22. After the pouring is completed, the locking member 13 is screwed so that the hoop portion 132 moves towards the end of the claw portion 122, thereby loosening the claw portion 122, so that the claw portion 122 relaxes and disengages from the card slot 112, and thus the supporting member 12 can slide back and forth on the screw 11.

[0063] The supporting member 12 and the locking member 13 are removed from the screw 11. Then, holding the fixing portion 111, the screw 11 is pulled out from the first template 21 and the second template 22, and can be recycled after cleaning.

[0064] The present invention has been described in detail above in combination with the embodiments with reference to the drawings. Those of ordinary skill in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation to the present invention, and the protection scope of the present invention will be defined by the scope defined in the appended claims.

Claims

1. A tension device for fixing formwork, characterized in that, Comprising: A screw rod for passing through a first formwork and a second formwork to be fixed by counter-tensioning. One end of the screw rod corresponding to the first formwork forms a fixing part for abutting against the first formwork, and the other end of the screw rod passes through the second formwork to form an exposed section; A supporting member sleeved on the exposed section of the screw rod and for abutting against the second formwork. The supporting member can move back and forth along the screw rod and has elasticity; And A locking member connected to the supporting member and capable of being embedded in the supporting member. By embedding the locking member into the supporting member, the supporting member is squeezed to deform and clamp the screw rod, thereby fixing the supporting member to the screw rod; The supporting member includes a claw part arranged around the screw rod and having elasticity. The diameter of the claw part near the locking member is smaller than the diameter of the part far from the locking member and is conical; The locking member includes a hoop part sleeved on the claw part. The diameter of the hoop part is smaller than the diameter of the end of the claw part far from the locking member. By embedding the locking member into the supporting member, the hoop part clamps the claw part, so that the claw part tightens and clamps the screw rod; The claw part includes a plurality of elastic cards arranged around the screw rod. The cards are inclined and enclose to form a cone; the cards are made of spring pieces; The supporting member and the locking member are connected by thread fit; the supporting member includes a positioning cylinder sleeved on the screw rod, and internal threads are formed on the inner side wall of the positioning cylinder; The locking member includes a connecting cylinder sleeved on the screw rod and matching with the positioning cylinder. The connecting cylinder is provided with external threads on the outer side wall corresponding to the internal threads to be screwed with the positioning cylinder. By screwing the locking member, the locking member is embedded into the supporting member.

2. The tensioning device for fixing the formwork according to claim 1, characterized in that, A plurality of card slots are arranged at intervals along the length direction of the screw rod.

3. The tension device for fixing the formwork according to claim 1, characterized in that, A handle is installed at one end of the locking member far from the supporting member, and a through hole for the screw rod to pass through is formed on the handle.

4. A construction method of a tension device for fixing a formwork as described in claim 1, characterized in that, Including the following steps: Pass the screw rod through the first formwork and the second formwork to be fixed by counter-tensioning and abut the fixing part against the first formwork. Move the supporting member along the screw rod until the supporting member abuts against the second formwork. Embed the locking member into the supporting member to fix the supporting member to the screw rod, thereby counter-tensioning and fixing the first formwork and the second formwork, and pouring in the first formwork and the second formwork.

5. The construction method of the tension device for fixing the formwork according to claim 4, characterized in that The supporting member includes a positioning cylinder sleeved on the screw rod and a claw part fixed to the positioning cylinder. The locking member includes a connecting cylinder screwed to the positioning cylinder and a hoop part fixed to the connecting cylinder and sleeved on the claw part; Screw the connecting cylinder in the direction close to the positioning cylinder, so that the locking member is embedded into the supporting member, and the hoop part clamps the claw part, so that the claw part tightens and clamps the screw rod, thereby fixing the supporting member to the screw rod.

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