Formwork fixing device for concrete pouring

Abstract

The utility model discloses a formwork fixing device for concrete pouring. The formwork fixing device for concrete pouring mainly comprises an outer rod, a threaded inner rod, a supporting mechanism and a switching mechanism. One side of the supporting mechanism is tightly attached to the surface of the formwork, the other side of the supporting mechanism is tightly attached to the ground, the threaded inner rod is rotated to move, the device is clamped, then force borne by the formwork is transmitted to the ground, and the switching mechanism enables the connection mode of the outer rod and the threaded inner rod to be switched between sliding connection and threaded connection through displacement. The problems that in the concrete wall pouring process, a formwork is inconvenient to fix, and a fixing device is inconvenient to operate and carry are solved. The operation efficiency can be improved, the formwork fixing effect is improved, and the labor intensity of operators is relieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of concrete pouring, in particular to a formwork fixing device for concrete pouring. BACKGROUND

[0002] In the modern engineering construction process, before pouring the concrete member, the formwork is used to support the member position, and then the reinforcement is bound in the formwork before pouring the concrete. The setting of the formwork can effectively control the form of the concrete pouring and prevent the concrete from overflowing. When pouring the concrete for the shear wall and other heavy walls, the formwork is erected on the ground, has a high height and a small area in contact with the ground. When impacted by the concrete pouring, the formwork is prone to instability, and even tilting. In the concrete curing stage, the formwork is also prone to instability due to other disturbances in the construction, which results in poor concrete pouring effect, concrete strength not meeting the standard, and even safety accidents such as tilting, which threatens the life safety of the operating personnel. Therefore, steel pipes are usually used to support the wall formwork on both sides of the wall formwork to form a triangular support structure to prevent the formwork from moving. However, the cutting surface of the steel pipe cannot fit the formwork and the ground, which is prone to damage to the formwork and the ground. The clamping method is usually to step on the steel pipe by the operating personnel, so that the steel pipe can be clamped to the ground and the formwork. This form is not convenient to operate and cannot effectively clamp, and the size and length of the steel pipe are different and not convenient to carry.

[0003] For example, the concrete wall formwork fixing device with the announcement number CN216239767U includes angle steels, the angle steels are provided with two, a plurality of steel bars are fixed between the side walls of the mutually close sides of the two angle steels, a plurality of uniformly distributed limiting holes are formed in the bottom end side walls of the angle steels, rivets are inserted into the limiting holes, and limiting blocks are arranged at the top ends of the rivets. The fixing device fixes the lower end of the wall formwork through the limiting blocks and the angle steels, but it is not convenient to carry and install. Therefore, the present application designs a fixing support that can conveniently install the concrete wall formwork and is convenient to carry and operate. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a formwork fixing device for concrete pouring, which solves the above problems.

[0005] In order to realize the above object, the utility model provides the following technical scheme: a formwork fixing device for concrete pouring, including outer pole, screw inner rod, support mechanism and the switching mechanism that the connection mode of screw inner rod and outer pole is switched, outer pole upper portion is rotatively connected with support mechanism, screw inner rod lower extreme is movably connected with support mechanism, switching mechanism sets up in outer pole lower part, screw inner rod is covered and is placed with the inside of outer pole, one side of support mechanism is close to formwork surface, the other side of support mechanism is close to ground, and the screw inner rod is displaced to make the device jammed, and then the force that formwork is subjected is conducted to ground, and switching mechanism passes through displacement and makes the connection form of outer pole and screw inner rod switch between sliding connection and screw connection.

[0006] The switching mechanism is provided to switch the connection mode of the outer rod and the screw inner rod between sliding connection and screw connection, so that the screw inner rod can be quickly retracted into the outer rod when not in use, and switched to screw connection after contacting the ground when in use. Holding the outer rod and rotating the screw inner rod can complete the locking of the device, ensuring the support of the device on the ground and the formwork. This makes the device convenient to carry, store and operate for the operator. The force received by the formwork is directed to the ground, thereby achieving support for the formwork.

[0007] Further, the support mechanism includes an upper bottom plate and a lower bottom plate. The upper bottom plate is rotatably connected to the outer rod with locking at the upper end of the outer rod. The lower bottom plate is movably connected to the screw inner rod at the lower end of the screw inner rod through a ball joint.

[0008] Further, the switching mechanism includes a first arc-shaped plate, a second arc-shaped plate, a connecting rod, and a handle. The rear end of the first arc-shaped plate is fixedly connected to the inner wall of the outer rod. The rear end of the second arc-shaped plate is slidably connected to the inner wall of the outer rod. The rear end of the second arc-shaped plate is welded to the connecting rod. The connecting rod is fixedly connected to the handle through the outer rod. The connecting rod is slidably connected to the outer rod with a locking structure. The first arc-shaped plate and the second arc-shaped plate are oppositely arranged. Threads are formed on the surfaces of the first arc-shaped plate and the second arc-shaped plate. The lengths of the first arc-shaped plate and the second arc-shaped plate are the same as that of the outer rod.

[0009] Further, the switching mechanism includes a ring-shaped switch, a sliding rail, a sliding block, a spring, an arc-shaped threaded piece, and an arc-shaped sliding piece. The inner wall of the outer rod is provided with a slot at the lower part. The sliding rail is arranged on the upper part of the slot. The sliding block slides in the sliding rail. One end of the spring is fixedly connected to the side wall of the slot. The other end of the spring is fixedly connected to the rear part of the sliding block. The arc-shaped threaded piece and the arc-shaped sliding piece are respectively inserted into one end of the sliding block away from the spring. The ring-shaped switch is rotatably connected to the lower end of the outer rod. The sliding block, the sliding rail, and the spring are circumferentially provided with a plurality of arrays. The arc-shaped threaded piece and the arc-shaped sliding piece are circumferentially and spaced apart. Threads are formed on the surface of the arc-shaped threaded piece. A low-friction material pad layer is provided on the surface of the arc-shaped sliding piece. The ring-shaped switch is internally provided with a plurality of triangular pins equal to the number of the sliding blocks. The triangular pins are oppositely arranged.

[0010] The annular switcher is rotatably connected with the outer rod through the annular plug-in board, the lower end of the annular plug-in board is fixedly connected with the annular switcher, the annular plug-in board is inserted into the outer rod and is rotatably connected with the outer rod, the outer rod is provided with two groups of symmetrical locking grooves, and the annular plug-in board is provided with two groups of symmetrical spring round pins.

[0011] Further, the annular switcher is rotatably connected with the outer rod through the annular plug-in board, the lower end of the annular plug-in board is fixedly connected with the annular switcher, the annular plug-in board is inserted into the outer rod and is rotatably connected with the outer rod, the outer rod is provided with two groups of symmetrical locking grooves, and the annular plug-in board is provided with two groups of symmetrical spring round pins.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The utility model provides a formwork fixing device for concrete pouring, the switching mechanism is arranged, the connection mode of the outer rod and the threaded inner rod can be switched between sliding connection and threaded connection, the threaded inner rod can be quickly received in the outer rod when not being used, and the threaded connection is switched after contacting the ground when being used, the locking of the device can be completed by rotating the threaded inner rod by hand, the device ensures the support of the ground and the formwork, the device is convenient to carry and store, and the operation of the operator is facilitated, the force received by the formwork is guided to the ground, and therefore the support of the formwork is realized.

[0014] The annular switcher is rotatably connected with the outer rod through the annular plug-in board, the lower end of the annular plug-in board is fixedly connected with the annular switcher, the annular plug-in board is inserted into the outer rod and is rotatably connected with the outer rod, the outer rod is provided with two groups of symmetrical locking grooves, and the annular plug-in board is provided with two groups of symmetrical spring round pins. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole schematic view of the formwork fixing device for concrete pouring;

[0016] Figure 2 It is a sectional view of the second embodiment of the utility model;

[0017] Figure 3 It is a threaded inner rod connection schematic view of the third embodiment of the utility model;

[0018] Figure 4 It is a switching mechanism schematic view of the third embodiment of the utility model;

[0019] Figure 5 It is another angle schematic view of the switching mechanism of the third embodiment of the utility model;

[0020] Figure 6 It is the plane schematic view of the switching mechanism of the third embodiment of the utility model;

[0021] Figure 7 It is the ring switching device schematic view of the third embodiment of the utility model.

[0022] In the figure: 1-outer rod;11-slotted;2-threaded inner rod;3-supporting mechanism;31-upper bottom plate, 32-lower bottom plate;33-ball joint;4-switching mechanism;411-first arc plate;412-second arc plate;413-link;414-handle;421-ring switching device;422-slideway;423-slideway block;424-spring;425-arc-shaped threaded piece;426-arc-shaped sliding piece;427-triangle pin;428-ring plugboard;429-spring round pin. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1 to 7 The utility model provides technical scheme as follows: including outer rod 1, threaded inner rod 2, supporting mechanism 3 and the switching mechanism 4 of the connecting mode of threaded inner rod 2 and outer rod 1 is switched, outer rod 1 upper portion is connected with the rotation of supporting mechanism 3, threaded inner rod 2 lower end is movably connected with supporting mechanism 3, switching mechanism 4 is set in outer rod 1 lower part, threaded inner rod 2 is set with the inside of outer rod 1;Supporting mechanism 3 one side is close to the surface of template, and the other side of supporting mechanism 3 is close to the ground, and rotating threaded inner rod 2 makes threaded inner rod 2 displacement makes that the device is stuck, and then the force that template is received is conducted to the ground, and switching mechanism 4 makes the connection form of outer rod 1 and threaded inner rod 2 between sliding connection and threaded connection switching through displacement.

[0025] Supporting mechanism 3 includes upper bottom plate 31 and lower bottom plate 32, upper bottom plate 31 is rotatably connected with the upper end of outer rod 1 with locking, lower bottom plate 32 is movably connected with the lower end of threaded inner rod 2 through ball joint 33. The rotatable connection between upper bottom plate 31 and outer rod 1 can be manually locked, and the outer rod 1 is rotated after the upper bottom plate 31 is tightly attached to the template, so that the outer rod 1 faces downward, the threaded inner rod 2 and the outer rod 1 are switched to sliding connection through displacement switching mechanism 4, and the threaded inner rod 2 is slid downward to contact the lower bottom plate 32 with the ground. After adjusting the device to the appropriate angle, reverse the displacement switching mechanism 4, so that the threaded inner rod 2 and the outer rod 1 are switched to threaded connection, and the threaded inner rod 2 is rotated by holding the outer rod 1, so that the threaded inner rod 2 continues to displace downward, thereby strengthening the compression of the template and the ground, so that the device is stuck between the template and the ground, the force on the template is transmitted to the ground, and when the device is not used, the threaded inner rod 2 and the outer rod 1 are switched to sliding connection through the switching mechanism 4, so that the threaded inner rod 2 slides to the inside of the outer rod 1, and then the threaded inner rod 2 will not slide out after being switched to threaded connection through the switching mechanism 4.

[0026] Embodiment 2

[0027] As another embodiment, as shown in Figure 2 , the switching mechanism 4 includes a first arc-shaped plate 411, a second arc-shaped plate 412, a connecting rod 413, and a handle 414; the rear end of the first arc-shaped plate 411 is fixedly connected with the inner wall of the outer rod 1, the rear end of the second arc-shaped plate 412 is slidably connected with the inner wall of the outer rod 1, the rear end of the second arc-shaped plate 412 is weldedly connected with the connecting rod 413, the connecting rod 413 passes through the outer rod 1 and is fixedly connected with the handle 414, and the connecting rod 413 is slidably connected with the outer rod 1 with a locking structure. When it is needed to switch the threaded inner rod 2 and the outer rod 1 to threaded connection state, the handle 414 is pushed inward by hand, so that the connecting rod 413 drives the second arc-shaped plate 412 to displace towards the first arc-shaped plate 411, so that the first arc-shaped plate 411 and the second arc-shaped plate 412 clamp the threaded inner rod 2, and the threaded inner rod 2 is threadedly connected with the first arc-shaped plate 411 and the second arc-shaped plate 412 through the threads formed on the surfaces, wherein the locking structure between the connecting rod 413 and the outer rod 1 can be manually unlocked, and when it is needed to switch to sliding connection, the connecting rod 413 is unlocked, and the handle 414 is pulled backward so that the second arc-shaped plate is away from the first arc-shaped plate 411, so that the threaded inner rod 2 can slide in the outer rod 1.

[0028] Referring to Figure 2 , the first arc-shaped plate 411 and the second arc-shaped plate 412 are oppositely arranged, threads are formed on the surfaces of the first arc-shaped plate 411 and the second arc-shaped plate 412, and the lengths of the first arc-shaped plate 411 and the second arc-shaped plate 412 are the same as that of the outer rod 1.

[0029] Embodiment 3

[0030] As another embodiment, as shown in Figures 3 to 7As shown, the switching mechanism 4 includes a ring-shaped switch 421, a sliding rail 422, a sliding block 423, a spring 424, an arc-shaped threaded piece 425, and an arc-shaped sliding piece 426; the outer rod 1 is provided with a slot 11 at the lower part of the inner wall, the sliding rail 422 is arranged on the upper part of the slot 11, the sliding block 423 slides in the sliding rail 422, one end of the spring 424 is fixedly connected with the side wall of the slot 11, the other end of the spring 424 is fixedly connected with the rear part of the sliding block 423, the arc-shaped threaded piece 425 and the arc-shaped sliding piece 426 are respectively inserted with the end of the sliding block 423 away from the spring 424, and the ring-shaped switch 421 is rotationally connected with the lower end of the outer rod 1. When the outer rod 1 and the threaded inner rod 2 are in a sliding connection state, the arc-shaped sliding piece 426 is in contact with the threaded inner rod 2, when it is needed to switch the threaded inner rod 2 and the outer rod 1 into a threaded connection state, the ring-shaped switch 421 is rotated to make the arc-shaped threaded piece 425 push the arc-shaped sliding piece 426 to displace along the sliding rail 422 to the center of the outer rod 1, and the arc-shaped sliding piece 426 is no longer pushed, the sliding block 423 is driven by the pulling force of the spring 424 to make the arc-shaped sliding block displace backward along the sliding rail 422, and the outer rod 1 and the threaded inner rod 2 are switched into a threaded connection.

[0031] Referring to Figure 5 and Figure 6 , the sliding block 423, the sliding rail 422, and the spring 424 are circumferentially provided with a plurality of groups, the arc-shaped threaded piece 425 and the arc-shaped sliding piece 426 are circumferentially and spaced apart, the surface of the arc-shaped threaded piece 425 is provided with threads, and the surface of the arc-shaped sliding piece 426 is provided with a low-friction material pad. Preferably, the sliding block 423, the sliding rail 422, and the spring 424 are 6 groups, and the arc-shaped threaded piece 425 and the arc-shaped sliding piece 426 are 3 groups. When the outer rod 1 and the threaded inner rod 2 are in a sliding connection state, the arc-shaped sliding piece 426 is in contact with the threaded inner rod 2 through the low-friction material pad, and the threaded inner rod 2 is clamped and positioned to a certain extent through the three groups of arc-shaped sliding pieces 426, which can effectively prevent the threaded inner rod 2 from deviating and protect the threads of the threaded inner rod 2 from being affected by impact during the sliding process.

[0032] Referring to Figure 6 and Figure 7 , the ring-shaped switch 421 is internally provided with a plurality of triangular pins 427 which are equal in number to the sliding blocks 423 and are arranged in pairs. The sliding block 423 is positionally corresponding to the triangular pin 427, when the arc-shaped threaded piece 425 corresponding to the sliding block 423 is at the position closest to the midpoint of the triangular pin 427, the arc-shaped sliding piece 426 corresponding to the sliding block 423 is at the position closest to the inner wall of the ring-shaped switch 421, when the ring-shaped switch 421 is rotated, the triangular pin 427 pushes the sliding block 423 to displace to the center or releases the limitation of the sliding block 423, so that the spring 424 can pull the sliding block 423 to slide backward, so that the positions of the arc-shaped threaded piece 425 and the arc-shaped sliding piece 426 are switched, thereby changing the connection form of the threaded inner rod 2 and the outer rod 1

[0033] Referring to Figure 7 , the annular switch 421 is rotationally connected with the outer rod 1 through the annular plugboard 428, the lower end of the annular plugboard 428 is fixedly connected with the annular switch 421, the annular plugboard 428 is inserted into the outer rod 1 and rotationally connected with the outer rod 1, the outer rod 1 is provided with two groups of symmetrically arranged locking grooves, the annular plugboard 428 is provided with two groups of symmetrically arranged spring round pins 429, the spring round pins 429 limit the rotation angle of the annular switch 421 by being inserted into the locking grooves. By manually rotating the annular switch 421, the spring round pins 429 can be disengaged from the locking grooves, and the normal rotation of the annular switch 421 is realized.

[0034] Working principle: when in use, the upper bottom plate 31 is tightly attached to the template, the outer rod 1 is rotated downward, the threaded inner rod 2 is switched to be in sliding connection with the outer rod 1 through the displacement switching mechanism 4, the threaded inner rod 2 is slid downward to be in contact with the ground, the device is adjusted to a suitable angle, the threaded inner rod 2 is switched to be in threaded connection with the outer rod 1 by reversing the displacement switching mechanism 4, the threaded inner rod 2 is rotated by holding the outer rod 1, the threaded inner rod 2 continues to displace downward, thereby strengthening the compression of the template and the ground, the device is stuck between the template and the ground, the template is supported, the force received by the template is transmitted to the ground, when the device is not in use, the threaded inner rod 2 is in sliding connection with the outer rod 1 through the switching mechanism 4, the threaded inner rod 2 is slid into the outer rod 1, and the threaded inner rod 2 will not slide out after being switched to be in threaded connection through the switching mechanism 4.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A formwork fixing device for concrete casting, characterized by The utility model provides a kind of formwork support device, including outer pole (1), threaded inner pole (2), support mechanism (3) and the switching mechanism (4) of the connection mode of threaded inner pole (2) and outer pole (1) is switched, the upper portion of outer pole (1) is rotatably connected with support mechanism (3), the lower end of threaded inner pole (2) is movably connected with support mechanism (3), switching mechanism (4) is arranged in the lower portion of outer pole (1), and threaded inner pole (2) is placed with the inside of outer pole (1);Support mechanism (3) one side is close to template surface, and the other side of support mechanism (3) is close to ground, and rotating threaded inner pole (2) makes that threaded inner pole (2) displacement makes that device is stuck, and then the force that template is received is conducted to ground, and switching mechanism (4) makes the connection form of outer pole (1) and threaded inner pole (2) between sliding connection and screw connection by displacement Switches.

2. The formwork fixing device for concrete placement according to claim 1, characterized in that, The support mechanism (3) includes an upper bottom plate (31) and a lower bottom plate (32), the upper bottom plate (31) is rotatably connected with the upper end of the outer pole (1) with locking, and the lower bottom plate (32) is movably connected with the lower end of the threaded inner pole (2) through a ball joint (33).

3. The formwork fixing device for concrete casting according to claim 2, characterized by, The switching mechanism (4) includes a first arc-shaped plate (411), a second arc-shaped plate (412), a connecting rod (413), and a handle (414); the rear end of the first arc-shaped plate (411) is fixedly connected with the inner wall of the outer pole (1), the rear end of the second arc-shaped plate (412) is slidably connected with the inner wall of the outer pole (1), the rear end of the second arc-shaped plate (412) is weldedly connected with the connecting rod (413), the connecting rod (413) passes through the outer pole (1) and is fixedly connected with the handle (414), and the connecting rod (413) is slidably connected with the outer pole (1) with a locking structure.

4. The formwork fixing device for concrete casting according to claim 3, characterized by, The first arc-shaped plate (411) and the second arc-shaped plate (412) are oppositely arranged, threads are formed on the surfaces of the first arc-shaped plate (411) and the second arc-shaped plate (412), and the lengths of the first arc-shaped plate (411) and the second arc-shaped plate (412) are the same as that of the outer pole (1).

5. The formwork fixing device for concrete casting according to claim 2, characterized by, The switching mechanism (4) includes a ring-shaped switch (421), a sliding rail (422), a sliding block (423), a spring (424), an arc-shaped threaded piece (425), and an arc-shaped sliding piece (426); a slot (11) is formed in the lower portion of the inner wall of the outer pole (1), the sliding rail (422) is arranged on the upper portion of the slot (11), the sliding block (423) slides in the sliding rail (422), one end of the spring (424) is fixedly connected with the side wall of the slot (11), the other end of the spring (424) is fixedly connected with the rear portion of the sliding block (423), the arc-shaped threaded piece (425) and the arc-shaped sliding piece (426) are respectively inserted into one end of the sliding block (423) away from the spring (424), and the ring-shaped switch (421) is rotatably connected with the lower end of the outer pole (1).

6. The formwork fixing device for concrete casting according to claim 5, wherein The slider (423), the slide rail (422) and the spring (424) are circumferentially provided with a plurality of sets, the arc-shaped threaded pieces (425) and the arc-shaped sliding pieces (426) are circumferentially and interval provided, the arc-shaped threaded pieces (425) are provided with threads on surfaces, and the arc-shaped sliding pieces (426) are provided with low-friction material pads on surfaces.

7. The formwork fixing device for concrete casting according to claim 6, characterized by The annular switch (421) is internally provided with the same number of triangular pins (427) as the sliders (423), and the triangular pins (427) are oppositely arranged in pairs.

8. The formwork fixing device for concrete casting according to claim 7, characterized by, The annular switch (421) is rotationally connected with the outer rod (1) through the annular plugboard (428), the lower end of the annular plugboard (428) is fixedly connected with the annular switch (421), the annular plugboard (428) is inserted into the outer rod (1) and rotationally connected with the outer rod (1), the outer rod (1) is internally provided with two groups of symmetrically arranged locking grooves, the annular plugboard (428) is internally provided with two groups of symmetrically arranged spring round pins (429), and the spring round pins (429) limit the rotation angle of the annular switch (421) by being inserted into the locking grooves.

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