A fixing device for precast wall panel diagonal bracing

Abstract

This invention relates to the field of precast wall panel technology, and more particularly to a fixing device for inclined support of precast wall panels. The technical solution includes: a support member comprising a support plate, a rotating rod, a stop block, a helical spring, support legs, and a lower pressure plate. The bottom of the support plate is fixedly connected to a base plate. The middle part of the rotating rod is rotatably connected to the support plate via a rotating shaft. Two rotating rods are provided, symmetrically positioned about the center line of the support plate on its sides. The sides of the rotating rods, near their ends, are elastically connected to the stop blocks via helical springs. The bottom of the rotating rod is fixedly connected to the support legs, which have an L-shaped structure. The lower pressure plate is rotatably connected to the support legs via a rotating shaft. This invention transmits the pressure of the precast wall panel to the lower pressure plate. The component force generated by the lower pressure plate presses down, increasing the friction with the ground and preventing the precast wall panel from tilting and being pushed, thus avoiding damage caused by the precast wall panel tipping over.

Description

Technical Field

[0001] This invention relates to the field of precast wall panel technology, and in particular to a fixing device for a precast wall panel diagonal support. Background Technology

[0002] Precast wall panels refer to reinforced concrete slab components manufactured in prefabrication plants or on construction sites for use in building assembly. They are also known as wall panels or wall panels. They are made through multiple processes and are a type of composite material. They are manufactured through processes such as mold pouring, high-temperature steam pressing, and demolding. Precast concrete wall panels are commonly used to construct prefabricated large-panel buildings. Precast wall panels can reduce on-site wet work, save on-site labor, overcome seasonal influences, and shorten the construction cycle.

[0003] Application No. 202111355222.1 proposes a precast wall panel support system, which sets the support member into a support part and two connecting parts. At the same time, the support part is also provided with a connector for changing the distance between the two connecting parts, so that the support system can adapt to wall panels of as many heights as possible.

[0004] When the precast wall panel tilts, the only point of contact between the support system and the precast wall panel is at its top corner. At this time, the precast wall panel is likely to push or overturn the support system, and the support system will not have a supporting effect, causing the precast wall panel to collapse. Summary of the Invention

[0005] The purpose of this invention is to address the problem in the prior art where the fixing device does not provide sufficient support for the precast wall panel, resulting in the precast wall panel tilting, and to propose a fixing device for tilting support of the precast wall panel.

[0006] The technical solution of the present invention: a fixing device for a precast wall panel diagonal support, comprising:

[0007] A base plate, wherein a rotating block is rotatably connected to the side of the base plate near the corner, and a caster wheel is fixedly installed at the bottom of the rotating block;

[0008] The support component includes a support plate, a rotating rod, a stop block, a helical spring, a support leg, and a lower pressure plate. The bottom of the support plate is fixedly connected to the base plate. The middle part of the rotating rod is rotatably connected to the support plate via a rotating shaft. There are two rotating rods, which are symmetrical about the center line of the support plate to the sides of the support plate. The sides of the rotating rods and near both ends are elastically connected to the stop block via helical springs. The bottom of the rotating rod is fixedly connected to the support leg. The support leg has an L-shaped structure. The lower pressure plate is rotatably connected to the support leg via a rotating shaft. The side plane of the lower pressure plate is flush with the plane of the rotating rod. The end of the lower pressure plate is slidably connected to the base plate.

[0009] The sides of both the support plate and the base plate are provided with clearance grooves for the rotation of the rotating rod and the support leg. The rotating rod and the support leg are retracted into the clearance grooves and are parallel to the support plate.

[0010] The longitudinal moving component includes a limiting box and a lever arm. The limiting box is engaged with the lever arm, which is disposed on the side of the support plate. The lever arm, the base plate, and the support plate form a triangular structure. The bottom of the limiting box is slidably connected to the base plate.

[0011] The support member is perpendicular to the base plate, the support plate is attached to the precast wall panel, the side of the abutment block away from the support plate is in contact with the precast wall panel, and the support member is provided with a transverse moving part inside.

[0012] Optionally, a slide rail is provided on the top of the base plate, the lower pressure plate slides in the slide rail, the abutment protrudes from the side of the support plate, a telescopic rod is provided at the axis of the helical spring, the two ends of the telescopic rod are respectively connected to the abutment and the rotating rod, the telescopic rod is fully retracted, the abutment is retracted into the support plate, a limit block is fixedly installed on the side of the rotating rod away from the abutment, and the included angle between the limit block and the support leg is the rotation range of the lower pressure plate.

[0013] Optionally, when the precast wall panel is in a vertical state, the support plate abuts against the precast wall panel, and both abutments are pressed into the support plate by the pressure of the precast wall panel; when the precast wall panel is in an inclined state, the abutment at the higher position is squeezed, while the abutment at the lower position is not subjected to force, and the rotating rod and support leg tilt, forming an angle between the support leg and the lower pressure plate.

[0014] Optionally, the longitudinal moving component further includes a gear block and a support block. The inner wall of the limiting box is rotatably connected to multiple gear blocks via a rotating shaft. The gear blocks adopt an L-shaped structure, and a receiving cavity is formed between two adjacent gear blocks. The support block is placed in the receiving cavity. The corner of the gear block is fastened to the top of the support block. The top of the support block, which is offset from the gear block, is hinged to the lever arm.

[0015] Optionally, the shift block engages with the support block, the support block is placed in any of the receiving cavities, the vertical surface of the clearance groove restricts the rotation of the extension plate, and the shift block always deflects toward the support member.

[0016] Optionally, the end of the lever arm is hinged with a slider, and an extension plate is fixedly installed at the bottom of the gear block. The extension plate is located on the extension line of the vertical surface of the gear block. The top of the limiting box and at the extension plate is provided with a clearance groove for making way for the extension plate. The clearance groove adopts a fan-shaped structure, including two planes and an arc surface, one of which is in contact with the clearance groove.

[0017] Optionally, the length of the receiving cavity is longer than the length of the support block, the corner of the gear block faces the support member, and the pivot on the side of the gear block is elastically connected to the limiting box by a torque spring.

[0018] Optionally, the lateral moving component includes a first threaded rod, a second threaded rod, and a recessed block. The body of the first threaded rod is threadedly connected to the limiting box, the body of the second threaded rod is threadedly connected to the recessed block, and the side of the recessed block is slidably connected to the slider.

[0019] Optionally, the first threaded rod and the second threaded rod are of the same length and parallel to each other. The side of the support plate is provided with a second sliding groove for sliding of the concave block, and the top of the base plate is provided with a first sliding groove for sliding of the limiting box. A knob is fixedly installed at the end of both the first threaded rod and the second threaded rod. The sides of the support plate and the base plate are provided with annular scales around the knobs, and the knobs are provided with triangular scales.

[0020] Optionally, the two ends of the first threaded rod are rotatably connected to the base plate, the two ends of the second threaded rod are rotatably connected to the support member, the rotating block is fixed to the base plate by a pin, and the universal wheel rotates around the rotating block as the center, and its height is always higher than the bottom surface of the base plate, and the universal wheel rolls on the ground.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] When the precast wall panel is tilted, the invention utilizes the thrust of the precast wall panel against the abutment block and the helical spring to rotate the rotating rod, thereby causing the support leg to rotate. The support leg separates from the lower pressure plate, forming an angle. The support leg rests against the ground, while the lower pressure plate rests against the top of the base plate. The pressure of the precast wall panel is transmitted to the lower pressure plate through the support leg. The component force generated by the lower pressure plate will press down on the base plate, increasing the friction between the base plate and the ground to prevent the precast wall panel from tilting and causing the base plate to be pushed, thus avoiding the precast wall panel from tipping over and causing damage.

[0023] Furthermore, the support block is placed in any of the receiving cavities. The position of the support block is changed, and the position of the slider is changed by using the lever arm. This changes the slider's movement in the vertical line, altering its relative position with the precast wall panel, so that it is on the transverse central axis of the precast wall panel, making its supporting force on the support plate and the precast wall panel more uniform.

[0024] Furthermore, by rotating the first and second threaded rods, the position of the slider is changed so that it moves to the longitudinal centerline of the precast wall panel. In conjunction with Embodiment 1, the slider can be moved to the center of the precast wall panel, so that the precast wall panel is supported by the slider more evenly.

[0025] Furthermore, depending on the usage scenario, the state of the casters can be changed. When the casters are in contact with the ground, they facilitate the transport of the fixing device and, in conjunction with the lifting and lowering of the support plate, allow entry into the floor. When the casters rotate and fold around the pivot block, the base plate contacts the ground, entering a support state. The contact between the base plate and the ground increases friction, thereby increasing the support force of the fixing device on the precast wall panel. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of one embodiment of the present invention is provided;

[0027] Figure 2 A cross-sectional schematic diagram of a limiting box structure according to an embodiment of the present invention is provided;

[0028] Figure 3 A schematic diagram of the closed state of the pressure plate structure according to an embodiment of the present invention is provided;

[0029] Figure 4 A schematic diagram of the pressure plate structure in the open state according to an embodiment of the present invention is provided;

[0030] Figure 5 Give Figure 4 Enlarged schematic diagram of the telescopic rod structure in part A;

[0031] Figure 6 A cross-sectional schematic diagram of the support state of the lower pressure plate structure according to an embodiment of the present invention is provided;

[0032] Figure 7 A cross-sectional schematic diagram of a limiting box structure according to an embodiment of the present invention is provided;

[0033] Figure 8 Give Figure 7 Enlarged schematic diagram of the torque spring structure in part B;

[0034] Figure 9 A schematic diagram of the omnidirectional rotating ring state according to an embodiment of the present invention is provided.

[0035] Reference numerals: 1. Base plate; 2. Rotating block; 3. Caster wheel; 4. Lateral moving part; 41. First threaded rod; 42. First slide groove; 43. Second threaded rod; 44. Second slide groove; 45. Knob; 46. Concave block; 5. Longitudinal moving part; 51. Limiting box; 52. Gear block; 53. Receiving cavity; 54. Support block; 55. Extension plate; 56. Clearance groove; 57. Torque spring; 58. Lever arm; 59. Slider; 6. Supporting part; 61. Support plate; 62. Rotating rod; 63. Abutment block; 64. Helical spring; 65. Support leg; 66. Lower pressure plate; 67. Limiting block; 68. Slide rail; 69. Telescopic rod. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0038] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] Example 1

[0042] This embodiment proposes a fixing device for the diagonal support of precast wall panels, such as... Figure 1 As shown, it includes a base plate 1, and a support member 6 is provided on the top of the base plate 1. The support member 6 is used to support the precast wall panel, and the support member 6 is perpendicular to the base plate 1.

[0043] like Figure 2 and 6As shown, the support member 6 includes a support plate 61, a rotating rod 62, a stop block 63, a coil spring 64, a support leg 65, and a lower pressure plate 66. The bottom of the support plate 61 is fixedly connected to the base plate 1. The middle part of the rotating rod 62 is rotatably connected to the support plate 61 through a rotating shaft. There are two rotating rods 62, which are symmetrical about the center line of the support plate 61 to support the side of the support plate 61. The side of the rotating rod 62 and near both ends are elastically connected to the stop block 63 through the coil spring 64. The bottom of the rotating rod 62 is fixedly connected to the support leg 65.

[0044] The support leg 65 adopts an L-shaped structure. The lower pressure plate 66 is rotatably connected to the support leg 65 via a pivot. The side plane of the lower pressure plate 66 is flush with the plane of the rotating rod 62, and the end of the lower pressure plate 66 is slidably connected to the base plate 1. This slidable connection between the end of the lower pressure plate 66 and the base plate 1 prevents the lower pressure plate 66 from detaching from the base plate 1, ensuring it remains in contact with the base plate 1 at all times.

[0045] The support plate 61 is abutted against the precast wall panel, and the side of the abutment block 63 away from the support plate 61 contacts the precast wall panel. A transverse moving part 4 is provided inside the support member 6. The precast wall panel is supported by the support plate 61. The end of the support leg 65 is made of fluororubber, which has a certain elasticity and can buffer the pressure from the precast wall panel. Initially, the support leg 65 is deformed by the pressure from the support plate 61 and the base plate 1. After the support leg 65 deflects, it recovers its deformation to ensure that it remains in contact with the ground after deflection.

[0046] like Figure 3 As shown, when the precast wall panel is in a vertical state, the support plate 61 abuts against the precast wall panel, and both abutments 63 are subjected to the pressure of the precast wall panel. At this time, since the two ends of the rotating rod 62 are subjected to the same force, the rotating rod 62 will not deflect. The abutment 63 on it compresses the helical spring 64 and enters the support plate 61. The elastic force of the helical spring 64 is insufficient to push the support plate 61 and the base plate 1.

[0047] like Figure 4 As shown, when the precast wall panel is tilted, the abutment block 63 at the higher position is compressed, while the abutment block 63 at the lower position is not subjected to force. Therefore, the rotating rod 62 will deflect at this time. The rotation of the rotating rod 62 causes the support leg 65 to tilt. Since the precast wall panel is tilted, while the bottom plate 1 and the support plate 61 remain unchanged, the precast wall panel contacts the top edge of the support plate 61, the contact area becomes smaller, and a gap appears between the precast wall panel and the support plate 61. After the support leg 65 rotates at the gap, it fits against the precast wall panel to increase the contact area and also prevents the support plate 61 and the bottom plate 1 from being squeezed and causing them to flip.

[0048] After the support leg 65 deflects, it forms an angle with the lower pressure plate 66. The support leg 65 supports the precast wall panel, increasing the force-bearing area and supporting the support plate 61. At the same time, the precast wall panel transmits the pressure to the lower pressure plate 66 through the support leg 65. At this time, the component force generated by the downward pressure on the lower pressure plate 66 will press down on the bottom plate 1, increasing the friction between the bottom plate 1 and the ground. This prevents the precast wall panel from tilting and pushing the support plate 61 and the bottom plate 1, so that the precast wall panel will not tip over and cause damage.

[0049] Both the support plate 61 and the base plate 1 have clearance grooves on their sides for the rotation of the rotating rod 62 and the support leg 65. The rotating rod 62 and the support leg 65 are retracted into the clearance grooves and are parallel to the support plate 61. Initially, the rotating rod 62 and the support leg 65 are retracted into the support plate 61.

[0050] like Figure 5 and 6 As shown, a slide rail 68 is provided on the top of the base plate 1. The lower pressure plate 66 slides in the slide rail 68 to prevent the support plate 61 from separating from the lower pressure plate 66. The abutment block 63 protrudes from the side of the support plate 61 so that it contacts the precast wall panel first. A telescopic rod 69 is provided at the axis of the helical spring 64. The two ends of the telescopic rod 69 are connected to the abutment block 63 and the rotating rod 62, respectively. When the telescopic rod 69 is fully retracted, the abutment block 63 is retracted into the support plate 61. A limit block 67 is fixedly installed on the side of the rotating rod 62 away from the abutment block 63. The angle between the limit block 67 and the support leg 65 is the rotation range of the lower pressure plate 66.

[0051] A limiting block 67 is fixedly installed on the side of the rotating rod 62 away from the abutment block 63. The angle between the limiting block 67 and the support leg 65 is the range of rotation of the lower pressure plate 66. The limiting block 67 limits the lower pressure plate 66 to prevent the lower pressure plate 66 from moving excessively and failing to support the support leg 65.

[0052] In this embodiment, when the precast wall panel tilts, the precast wall panel uses its thrust on the abutment block 63 and the helical spring 64 to make the rotating rod 62 rotate, so that the support leg 65 rotates. The support leg 65 separates from the lower pressure plate 66 to form an angle. The support leg 65 abuts against the ground, while the lower pressure plate 66 abuts against the top of the base plate 1. The pressure of the precast wall panel is transmitted to the lower pressure plate 66 through the support leg 65. The component force generated by the lower pressure plate 66 will press down on the base plate 1, increasing the friction between the base plate 1 and the ground to prevent the precast wall panel from tilting and causing the base plate 1 to be pushed, thus avoiding the precast wall panel from tipping over and causing damage.

[0053] Example 2

[0054] This embodiment proposes a fixing device for the diagonal support of precast wall panels, such as... Figure 7 and 9As shown, it also includes a longitudinal moving part 5, which includes a limiting box 51, a gear block 52, a support block 54, and a lever arm 58. The inner wall of the limiting box 51 is rotatably connected to multiple gear blocks 52 via a rotating shaft. The gear blocks 52 adopt an L-shaped structure, and a receiving cavity 53 is formed between two adjacent gear blocks 52. The support block 54 is placed in the receiving cavity 53. The corner of the gear block 52 is fastened to the top of the support block 54. The top of the support block 54 and the position offset from the gear block 52 are hinged to the lever arm 58. A slider 59 is hinged to the end of the lever arm 58.

[0055] By placing the support block 54 in the receiving cavity 53 and locking the support block 54 with the stop block 52 to restrict its position, the support block 54 supports the support member 6 with the slider 59 and uses the stability of the triangle to support the precast wall panel, thereby improving the support stability.

[0056] like Figure 7 , Figure 8 As shown, the length of the receiving cavity 53 is longer than the length of the support block 54. The corner of the stop block 52 faces the support member 6. The pivot on the side of the stop block 52 is elastically connected to the limiting box 51 through a torque spring 57. The torque spring 57 is used to reset the stop block 52. Since the length of the receiving cavity 53 is longer than the length of the support block 54, the support block 54 can be easily placed into the receiving cavity 53. At the same time, the stop block 52 can be rotated to open it so that the support block 54 can be placed in it. The stop block 52 engages with the support block 54. The support block 54 can be placed in any of the receiving cavities 53, thereby changing the height of the slider 59. This changes the point at which the slider 59 applies force to the support member 6, so that the slider 59 is on the transverse central axis of the precast wall panel, making the longitudinal force on the precast wall panel more uniform.

[0057] like Figure 7 As shown, an extension plate 55 is fixedly installed at the bottom of the gear block 52. The extension plate 55 is located on the extension line of the vertical surface of the gear block 52. A clearance groove 56 for making way for the extension plate 55 is provided at the top of the limit box 51 and at the extension plate 55. The clearance groove 56 adopts a fan-shaped structure, including two planes and an arc surface, one of which is in contact with the clearance groove 56.

[0058] The extension plate 55 is limited by the plane of the relief groove 56, and the vertical plane of the relief groove 56 restricts the rotation of the extension plate 55. The stop block 52 always deflects towards the support member 6. When the lever arm 58 supports the support member 6 with the slider 59, that is, when the precast wall panel is supported, the precast wall panel transmits the force to the lever arm 58 through the support member 6 and pushes the support block 54. Since the plane of the relief groove 56 limits the extension plate 55, the stop block 52 is also restricted. The support block 54 is subjected to force and transmits the force to the stop block 52. However, since the extension plate 55 is restricted by the relief groove 56, the stop block 52 cannot rotate. As a result, the stop block 52 supports the support member 6 and the precast wall panel through the support block 54 and the lever arm 58.

[0059] In this embodiment, by rotating the stop block 52, the support block 54 at the receiving cavity 53 is moved and placed at any position of the receiving cavity 53. The position of the support block 54 is changed and the position of the slider 59 is changed by using the lever arm 58, thereby changing the slider 59 to move in the vertical line and changing its relative position with the precast wall panel, so that it is on the horizontal central axis of the precast wall panel, making its supporting force on the support member 6 and the precast wall panel more uniform.

[0060] Example 3

[0061] Based on Embodiment 1 or 2 above, this embodiment proposes a fixing device for the inclined support of precast wall panels, such as... Figure 9 As shown, it also includes a lateral moving component 4, which includes a first threaded rod 41, a second threaded rod 43, and a recess 46. The body of the first threaded rod 41 is threadedly connected to the limiting box 51, and the body of the second threaded rod 43 is threadedly connected to the recess 46. The side of the recess 46 is slidably connected to the slider 59. The position of the limiting box 51 is changed by rotating the first threaded rod 41, and the position of the recess 46 is changed by rotating the second threaded rod 43. After the slider 59 slides up and down within the support plate 61, changing the position of the support force applied by the slider 59 to the support plate 61, rotating the first threaded rod 41 and the second threaded rod 43 moves the slider 59 to the longitudinal centerline position of the precast wall panel. The two components work together to move the slider 59 to the center position of the precast wall panel, making the support force of the support plate 61 on the precast wall panel more uniform.

[0062] The first threaded rod 41 and the second threaded rod 43 are of the same length and parallel to each other. A second groove 44 for sliding the concave block 46 is provided on the side of the support plate 61, and a first groove 42 for sliding the limiting box 51 is provided on the top of the base plate 1. A knob 45 is fixedly installed at the ends of both the first threaded rod 41 and the second threaded rod 43. Annular scales surrounding the knobs 45 are provided on the sides of both the support plate 61 and the base plate 1, and triangular scales are provided on the knobs 45. Both ends of the first threaded rod 41 are rotatably connected to the base plate 1. By comparing the scales, the first threaded rod 41 and the second threaded rod 43 can be rotated by the same angle, thus moving the limiting box 51 and the concave block 46 by the same distance, preventing the triangle formed by the lever arm 58, the base plate 1, and the support plate 61 from tilting.

[0063] In this embodiment, by rotating the first threaded rod 41 and the second threaded rod 43, the position of the slider 59 is changed so that it moves to the longitudinal centerline of the precast wall panel. In conjunction with Embodiment 1, the slider 59 can be moved to the center position of the precast wall panel, so that the precast wall panel is supported by the slider 59 more evenly.

[0064] Example 4

[0065] Based on embodiments 1, 2, or 3 above, this embodiment proposes a fixing device for the diagonal support of precast wall panels, such as... Figure 1 and 9 As shown, a rotating block 2 is rotatably connected to the side of the base plate 1 near the corner, and a caster wheel 3 is fixedly installed on the bottom of the rotating block 2. The rotating block 2 is fixed to the base plate 1 by a pin. After the caster wheel 3 rotates around the rotating block 2, its height is always higher than the bottom surface of the base plate 1, and the caster wheel 3 rolls on the ground.

[0066] The use of the caster wheel 3 can be changed by the pin. When the caster wheel 3 is in contact with the ground, it can transport the fixing device to enter the floor. When the caster wheel 3 rotates around the rotating block 2, the caster wheel 3 is flush with the base plate 1 and the height of the caster wheel 3 is higher than the bottom surface of the base plate 1. At this time, the base plate 1 is in contact with the ground and enters the support state. This avoids the caster wheel 3 from being in contact with the ground and having low friction between the caster wheel 3 and the ground, which would affect the support force of the fixing device on the precast wall panel.

[0067] In this embodiment, the state of the caster wheel 3 is changed according to the usage scenario. When the caster wheel 3 is in contact with the ground, it is used to transport the fixing device so that it can enter the floor. When the caster wheel 3 is rotated and folded around the rotating block 2, the base plate 1 is in contact with the ground and enters the support state. The friction force is increased by the contact between the base plate 1 and the ground, that is, the support force of the fixing device on the precast wall panel is increased.

[0068] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A fixing device for a precast wall panel diagonal support, characterized in that, include: A base plate (1) is rotatably connected to the side of the base plate (1) and near the corner, and a caster wheel (3) is fixedly installed at the bottom of the caster wheel (2). The support member (6) includes a support plate (61), a rotating rod (62), a stop block (63), a coil spring (64), a support leg (65), and a lower pressure plate (66). The bottom of the support plate (61) is fixedly connected to the base plate (1). The middle part of the rotating rod (62) is rotatably connected to the support plate (61) through a rotating shaft. There are two rotating rods (62), which are symmetrical about the center line of the support plate (61) to the side of the support plate (61). The side of the rotating rod (62) and near the two ends are elastically connected to the stop block (63) through a coil spring (64). The bottom of the rotating rod (62) is fixedly connected to the support leg (65). The support leg (65) adopts an L-shaped structure. The lower pressure plate (66) is rotatably connected to the support leg (65) through a rotating shaft. The side plane of the lower pressure plate (66) is flush with the plane of the rotating rod (62). The end of the lower pressure plate (66) is slidably connected to the base plate (1). The sides of the support plate (61) and the base plate (1) are provided with clearance grooves for the rotation of the rotating rod (62) and the support leg (65). The rotating rod (62) and the support leg (65) are retracted into the clearance grooves and are parallel to the support plate (61). The longitudinal moving part (5) includes a limiting box (51) and a lever arm (58). The limiting box (51) is engaged with the lever arm (58). The lever arm (58) is disposed on the side of the support plate (61). The lever arm (58), the base plate (1) and the support plate (61) form a triangular structure. The bottom of the limiting box (51) is slidably connected to the base plate (1). The support member (6) is perpendicular to the base plate (1), the support plate (61) is attached to the precast wall panel, the side of the abutment (63) away from the support plate (61) is in contact with the precast wall panel, and the support member (6) is provided with a transverse moving member (4). The top of the base plate (1) is provided with a slide rail (68), the lower pressure plate (66) slides in the slide rail (68), the abutment (63) protrudes from the side of the support plate (61), and a telescopic rod (69) is provided at the axis of the helical spring (64). The two ends of the telescopic rod (69) are respectively connected to the abutment (63) and the rotating rod (62). When the telescopic rod (69) is fully retracted, the abutment (63) is retracted into the support plate (61). A limit block (67) is fixedly installed on the side of the rotating rod (62) away from the abutment (63). The included angle between the limit block (67) and the support leg (65) is the rotation range of the lower pressure plate (66).

2. The fixing device for the diagonal support of a precast wall panel according to claim 1, characterized in that: When the precast wall panel is in a vertical position, the support plate (61) abuts against the precast wall panel, and both abutment blocks (63) are pressed into the support plate (61) by the pressure of the precast wall panel; when the precast wall panel is in an inclined position, the abutment block (63) located at the higher position is squeezed, while the abutment block (63) located at the lower position is not subjected to force, and the rotating rod (62) and the support leg (65) tilt, and the support leg (65) forms an angle with the lower pressure plate (66).

3. The fixing device for the diagonal support of a precast wall panel according to claim 1, characterized in that: The longitudinal moving part (5) also includes a gear block (52) and a support block (54). The inner wall of the limiting box (51) is rotatably connected to multiple gear blocks (52) via a rotating shaft. The gear block (52) adopts an L-shaped structure. An accommodating cavity (53) is formed between two adjacent gear blocks (52). The support block (54) is placed in the accommodating cavity (53). The corner of the gear block (52) is fastened to the top of the support block (54). The top of the support block (54) and the position offset from the gear block (52) are hinged to the lever arm (58).

4. The fixing device for the diagonal support of a precast wall panel according to claim 3, characterized in that: The shift block (52) engages with the support block (54), the support block (54) is placed at any of the receiving cavities (53), and the shift block (52) is always deflected toward the support member (6).

5. The fixing device for the diagonal support of a precast wall panel according to claim 4, characterized in that: The end of the lever arm (58) is hinged with a slider (59), and an extension plate (55) is fixedly installed at the bottom of the stop block (52). The extension plate (55) is located on the extension line of the vertical surface of the stop block (52). The top of the limit box (51) and located at the extension plate (55) are provided with a clearance groove (56) for making way for the extension plate (55). The clearance groove (56) adopts a fan-shaped structure, including two planes and an arc surface. One of the planes contacts the clearance groove (56). The vertical surface of the clearance groove (56) restricts the rotation of the extension plate (55).

6. The fixing device for the diagonal support of a precast wall panel according to claim 5, characterized in that: The length of the receiving cavity (53) is longer than the length of the support block (54), the corner of the gear block (52) faces the support member (6), and the pivot on the side of the gear block (52) is elastically connected to the limiting box (51) by a torque spring (57).

7. The fixing device for the diagonal support of a precast wall panel according to claim 6, characterized in that: The lateral moving part (4) includes a first threaded rod (41), a second threaded rod (43) and a concave block (46). The rod body of the first threaded rod (41) is threadedly connected to the limiting box (51), the rod body of the second threaded rod (43) is threadedly connected to the concave block (46), and the side of the concave block (46) is slidably connected to the slider (59).

8. The fixing device for the diagonal support of a precast wall panel according to claim 7, characterized in that: The first threaded rod (41) and the second threaded rod (43) are of the same length and parallel to each other. The side of the support plate (61) is provided with a second groove (44) for sliding of the concave block (46). The top of the base plate (1) is provided with a first groove (42) for sliding of the limiting box (51). The ends of the first threaded rod (41) and the second threaded rod (43) are both fixedly installed with knobs (45). The sides of the support plate (61) and the base plate (1) are both provided with annular scales around the knobs (45). The knobs (45) are provided with triangular scales.

9. The fixing device for the diagonal support of a precast wall panel according to claim 8, characterized in that: The two ends of the first threaded rod (41) are rotatably connected to the base plate (1), and the two ends of the second threaded rod (43) are rotatably connected to the support (6). The rotating block (2) is fixed to the base plate (1) by a pin. After the universal wheel (3) rotates around the rotating block (2) as the center, its height is always higher than the bottom surface of the base plate (1). The universal wheel (3) rolls on the ground.

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