A box-type prefabricated beam steel frame inner template installation positioning device

Abstract

The present invention relates to the technical field of positioning devices, specifically a positioning device for installing a template inside a steel frame of a box-type prefabricated beam, comprising a plurality of positioning devices arranged in sequence front and back, each positioning device comprising a bottom plate, a vertical support mechanism and a transverse support mechanism arranged between the vertical support mechanisms, a clamping mechanism is arranged on the opposite side of the two vertical support mechanisms and on the left and right sides of the transverse support mechanism, the clamping mechanism located on the vertical support mechanism can move in the vertical direction, and the clamping mechanism located on the transverse support mechanism can move in the horizontal direction. By means of the clamping mechanisms arranged on the transverse support mechanism and the vertical support mechanism, the positioning device can be adaptively adjusted according to the shape and size of the prefabricated beam, the angle and size can be adjusted at will, and it can adapt to a variety of box beam shapes, and can well adapt to engineering needs, and the size and adjustment of the clamping mechanism can adapt to a variety of steel bars of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of positioning devices, in particular to a positioning device for installing a template inside a steel bar framework of a box-type prefabricated beam. Background Art

[0002] Box-type prefabricated beams are widely used in the construction of large-span bridges and roads. When making prefabricated beams, it is necessary to tie the box beam reinforcement on the reinforcement tying jig. When designing the box beam, especially in the process of reinforcement positioning, there are many working conditions. For prefabricated beams of different shapes and sizes, the reinforcement arrangement is different, so it is often necessary to tie reinforcement cages of different shapes and sizes. The prior art lacks a reinforcement positioning device suitable for complex working conditions, is not convenient for flexibly adjusting the size and shape of the reinforcement arrangement, and lacks a box beam reinforcement positioning device that can be adaptively adjusted for box beams of different shapes, which often leads to high project costs, long construction periods, and difficulty in ensuring construction quality. Summary of the invention

[0003] In order to solve the technical problems mentioned in the above background technology, the present invention provides a template installation and positioning device for a steel bar skeleton of a box-type prefabricated beam.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a box-type prefabricated beam steel frame internal template installation positioning device, characterized in that: it includes a plurality of positioning devices arranged in sequence front and back; each of the positioning devices includes a base plate; two vertical support mechanisms are relatively arranged on the base plate; a transverse support mechanism is arranged between the two vertical support mechanisms; clamping mechanisms are arranged on the opposite side of the two vertical support mechanisms and on the left and right sides of the transverse support mechanism; the clamping mechanism located on the vertical support mechanism can move in the vertical direction, and the clamping mechanism located on the transverse support mechanism can move in the horizontal direction.

[0005] Furthermore, the vertical support mechanism includes a counterweight section, a connecting section and a height adjustment section which are arranged in sequence from bottom to top; the height adjustment section includes an adjusting screw rotatably connected to the top of the connecting section; an adjusting handle is provided on the top of the adjusting screw; a nut sleeve is threadedly connected to the adjusting screw; and a clamping mechanism located on the vertical support mechanism is provided on the nut sleeve.

[0006] Furthermore, the lateral support mechanism includes two oppositely arranged lead screws, which are opposite to each other and respectively rotatably connected to the connecting section, and can rotate synchronously; both lead screws are rotatably connected to a nut seat, and the clamping mechanism on the lateral support mechanism is arranged on the nut seat; a drive shaft is rotatably connected in the connecting section, one end of the drive shaft is fixedly connected to one end of one of the lead screws, and the other end of the drive shaft passes through the connecting section and is connected to a motor.

[0007] Furthermore, a prismatic telescopic rod is connected between the two lead screws; the telescopic rod is formed by a plurality of telescopic sections that are slidably connected in sequence from the inside to the outside, and the innermost telescopic section extends a certain distance to form a nesting portion; accommodating grooves for accommodating the two ends of the telescopic rod are respectively provided on the opposite sides of the two lead screws, and the nesting portion and the outermost telescopic section of the telescopic rod are respectively located in the two telescopic grooves.

[0008] Furthermore, a limit block is provided at the end of the nesting portion and at the end of the telescopic rod away from the nesting portion; a limit groove matching the limit block is provided inside the two lead screws; the limit block is arranged in the limit groove to prevent the telescopic rod from escaping from the telescopic groove.

[0009] Furthermore, the clamping mechanism includes an annular fixed disk, a connecting seat is provided on the circumferential side of the fixed disk, and the fixed disk is connected to the nut sleeve and the nut seat respectively through the connecting seat; a driving groove is provided on the fixed disk; an inner gear ring is rotatably connected in the driving groove, and the upper end surface of the inner gear ring is lower than the upper end surface of the fixed disk; an adjusting rod is provided on the circumferential side of the inner gear ring, and an adjusting groove is provided on the fixed disk, and the adjusting rod can move along the circumference of the fixed disk in the adjusting groove; a plurality of pinion gears are meshed on the inner gear ring, and the pinion gears are rotatably connected to the driving groove, and the upper end surface of the pinion gears is higher than the upper end surface of the fixed disk; each of the pinion gears is meshed with a rack, and the rack is slidably connected to the fixed disk and is arranged along the radial direction of the fixed disk; a clamping block is connected to the end surface of the rack through a connecting column.

[0010] Furthermore, a prismatic limiting rod is provided between the clamping mechanisms at the upper and lower sides, and the limiting rod is hinged to the clamping mechanisms at the upper and lower sides respectively.

[0011] Furthermore, the bottom of the vertical support mechanism is slidably connected to the bottom plate.

[0012] Furthermore, a laser locator is provided on the nut sleeve of one of the positioning devices, and a positioning groove is provided on the nut sleeve of the other positioning device, and the positioning groove is arranged opposite to the laser locator; when the laser of the laser locator falls exactly into the positioning groove, the front and rear positioning devices are located on the same horizontal line.

[0013] Furthermore, the bottom plate is provided with a plurality of positioning bolts, and the bottoms of the positioning bolts are conical.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: a box-type prefabricated beam steel frame internal template installation positioning device provided by the present invention can adaptively adjust the positioning device according to the shape and size of the prefabricated beam through a clamping mechanism arranged on the transverse support mechanism and the vertical support mechanism, and can adjust the angle and size at will to adapt to a variety of box beam shapes, and can well adapt to engineering needs; the size and adjustment of the clamping mechanism can adapt to a variety of steel bars of different sizes; the lead screws of the transverse support mechanism are connected by a telescopic rod, which can facilitate the adjustment of the distance between the lead screws and play a limiting and transmission role, and facilitate the synchronous rotation of the two lead screws, which is convenient for adjusting the size of the steel frame; the clamping mechanism located on the upper side and the clamping mechanism located on the lower side are connected by a prismatic limiting rod, which can produce a limiting effect on the clamping mechanism, so that the position of the clamping mechanism will not change, which is convenient for the steel frame to be better shaped. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the present invention viewed from above;

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0018] Figure 4 is a schematic diagram of the internal structure of the clamping mechanism;

[0019] Figure 5 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0020] Figure 6 It is a schematic diagram of the overall structure of the clamping mechanism. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The invention provides a box-type prefabricated beam reinforcement frame inner template installation positioning device, which mainly includes at least two positioning devices arranged in sequence, and the positioning device can be used to erect the reinforcement, thereby facilitating the construction of the box-type prefabricated beam reinforcement frame and subsequent bundling and forming. The positioning device is mainly composed of a bottom plate 1, a vertical support mechanism 2, a horizontal support mechanism 3 and a clamping mechanism 4.

[0025] The two ends of the steel bar are clamped by the clamping mechanisms 4 on different positioning devices, which is convenient for subsequent bundling. The vertical support mechanisms 2 are two and are arranged opposite to each other, and the bottom of the vertical support mechanism 2 is slidably arranged on the bottom plate 1 and can move along the length direction of the bottom plate 1.

[0026] In order to place the positioning device firmly, a plurality of positioning bolts 102 are provided on the bottom plate 1 to facilitate fixing the positioning device to the ground or other platforms. The bottom of the positioning bolts 102 is conical, which is convenient for plugging.

[0027] In this embodiment, the sliding connection between the bottom of the vertical support mechanism 2 and the bottom plate 1 is a slider and a slide rail connection. Specifically, a slider 201 is provided at the bottom of the vertical support mechanism 2, and a slide rail 101 distributed along the length direction is provided at the top of the bottom plate 1. The slider 201 is slidably connected to the slide rail 101, so that the vertical support mechanism 2 can slide relative to the bottom plate 1. As an alternative embodiment, the sliding connection between the vertical support mechanism 2 and the bottom plate 1 is a pulley and a slideway connection. Specifically, a pulley is provided at the bottom of the vertical support mechanism 2, and a slideway distributed along the length direction is provided at the top of the bottom plate 1. The pulley is slidably arranged in the slideway (not shown in the figure).

[0028] The vertical support mechanism 2 mainly includes a counterweight section 202 , a connecting section 203 and a height adjustment section 204 which are arranged in sequence from bottom to top.

[0029] The arrangement of the counterweight section 202 can move the center of gravity of the entire device downward, thereby increasing stability.

[0030] The connecting section 203 is mainly used to support and install the lateral supporting mechanism 3 .

[0031] The height adjustment section 204 includes an adjustment screw 2041 rotatably connected to the top of the connection section 203, a nut sleeve 2042 is threadedly connected to the adjustment screw 2041, and the clamping mechanism 4 located on the vertical support mechanism 2 is arranged on the nut sleeve 2042. An adjustment handle 2043 is arranged on the top of the adjustment screw 2041, and the adjustment handle 2043 can drive the adjustment screw 2041 to rotate, thereby driving the nut sleeve 2042 and the clamping mechanism 4 to move in the vertical direction, so as to achieve height adjustment of the clamping mechanism 4 located on the vertical support device 2.

[0032] The two ends of the transverse support mechanism 3 are respectively arranged vertically on the two vertical support mechanisms 2. The transverse support mechanism 3 is arranged on the connecting section 203. Specifically, the transverse support mechanism 3 includes two oppositely arranged lead screws 301, and the wire directions on the two lead screws 301 are opposite, and the lead screws 301 are reciprocating lead screws. A lead screw 301 is rotatably connected to each connecting section 203. An axial hole coaxial with the lead screw 301 is opened on one of the connecting sections 203, and a driving shaft 302 is rotatably connected in the axial hole through a bearing, and one end of the driving shaft 302 is fixedly connected to the lead screw 301. In this embodiment, the other end of the driving shaft 302 extends out of the connecting section 203 and is connected to a motor 303, and the transverse support device 3 is driven by the motor 303. Alternatively, as another replaceable embodiment, the transverse support device is a handwheel drive (not shown in the figure). A nut seat 304 is rotatably connected to each lead screw 301, and the clamping mechanism 4 is installed on the top of the nut seat 304.

[0033] In this embodiment, in order to facilitate the adjustment of the length of the lateral support mechanism 3, the two lead screws 301 are connected by a telescopic rod 305. The cross-section of the telescopic rod 305 can be a triangle, a rectangle or other prism shape, and the present invention does not impose specific restrictions on this. The prismatic telescopic rod 305 can form a limiting and transmission function, so that when the motor 303 drives one of the lead screws 301 to rotate, the telescopic rod 305 can drive the other lead screw 301 to rotate, thereby driving the clamping mechanism 4 on the nut seat 304 to move closer or farther from each other, so as to adjust the shape of the steel skeleton frame as needed.

[0034] The telescopic rod 305 is formed by a plurality of telescopic joints 3051 which are slidably connected from the inside to the outside in sequence, and the innermost telescopic joint 3051 extends a certain distance to form a nesting portion 3052. Receiving grooves 3053 for accommodating the two ends of the telescopic rod 305 are respectively provided on the opposite sides of the two lead screws 3052, and the nesting portion 3052 and the outermost telescopic joint 3051 of the telescopic rod 305 are respectively located in the two telescopic grooves 3053.

[0035] A limit block 3054 is provided at the end of the nesting portion 3052 and at the end of the telescopic rod away from the nesting portion 3052. A limit groove matching the limit block 3054 is provided inside the two lead screws 301. The limit block 3054 is arranged in the limit groove to fix the two ends of the telescopic rod to prevent the telescopic rod from escaping from the telescopic groove 3053.

[0036] The clamping mechanisms 4 on the vertical support mechanism 2 and the horizontal support mechanism 3 cooperate with each other to adjust the shape and size of the steel bar skeleton.

[0037] As another alternative implementation, the two lead screws 301 are fixedly connected.

[0038] The transverse support mechanism 3 can drive the two clamping mechanisms 4 thereon to move closer to or away from each other in the horizontal direction; the vertical support mechanism 2 can drive the clamping mechanisms 4 thereon to move in the vertical direction. The transverse support mechanism 3 and the vertical support mechanism 2 cooperate with each other to adjust the position and relative angle of the clamping mechanisms 4 respectively, so as to be suitable for steel bar skeletons of different sizes, shapes, dimensions and different angles.

[0039] There are four clamping mechanisms 4 on each positioning device, which are respectively distributed on the opposite side of the vertical support mechanism 2 and the left and right sides of the horizontal support mechanism 4. The four clamping mechanisms 4 correspond to the four corners of the box-type prefabricated beam steel frame to clamp and fix the steel bars.

[0040] The clamping mechanism 4 includes an annular fixed disk 401, on which an annular driving groove 402 is provided, and an inner gear ring 403 is concentrically provided in the driving groove 402, and the inner gear ring 403 is rotatably connected to the fixed disk 401, and the upper end surface of the inner gear ring 403 is lower than the upper end surface of the fixed disk 401. A plurality of evenly distributed pinions 404 are meshed on the inner gear ring 403, and the pinions 404 are rotatably connected to the bottom surface of the driving groove 402, so that the pinions 404 can be driven to rotate by the inner gear ring 403. The height of the pinions 404 is greater than the height of the inner gear ring 403, and the upper end surface of the pinions 404 is higher than the upper end surface of the fixed disk 401. A rack 405 is meshed on each pinion 404, and a plurality of racks 405 are slidably connected to the upper end surface of the fixed disk 401. Since the height of the upper end surface of the inner gear ring 403 is lower than the height of the upper end surface of the fixed disk 401, there is a certain distance between the rack 405 and the inner gear ring 403, which will not hinder the rotation of the inner gear ring 403. Each rack 405 is arranged along the radial direction of the fixed disk 401, so that each rack 405 faces the center of the fixed disk 401. A clamping block 407 is connected to the end surface of the rack 405 through a connecting column 406, and each clamping block 407 has an arc structure on one side facing the center of the fixed disk 401, and the steel bar is clamped between a plurality of clamping blocks 407.

[0041] In order to facilitate the rotation of the inner gear ring 403, an adjustment rod 408 is fixedly connected to the circumference of the inner gear ring 403, and an adjustment slot 409 is provided on the fixed disk 401. The adjustment rod 408 can move back and forth in the adjustment slot 409 along the circumference of the fixed disk 401, so as to achieve the rotation adjustment of the inner gear ring 403 through the adjustment rod 408. When the inner gear ring 403 rotates, it will drive the pinion 404 to rotate, and then drive the rack 405 and the clamping block 407 on the rack 405 to move along the radial direction of the fixed disk 401, control the distance between the clamping blocks 407, and perform adaptive adjustment according to the diameter of the steel bar.

[0042] A connecting seat 410 is provided on the peripheral side of the fixing plate 401 , and the clamping device 4 is connected to the nut sleeve 2042 and the nut seat 304 via the connecting seat 410 .

[0043] The clamping mechanisms 4 located at the upper and lower sides are also connected with limit rods 411 respectively. Since the clamping mechanism 4 located at the upper side needs to be adjusted in height up and down along the vertical support mechanism 2, and the clamping mechanism 4 located at the lower side needs to be adjusted in left and right distance along the horizontal support mechanism 3, in this embodiment, the two ends of the limit rod 411 are respectively hinged with the two clamping mechanisms 4 located at the upper and lower sides, so as to adapt to the angle change that occurs when the clamping mechanisms 4 at the upper and lower sides are adjusted. The cross-section of the limit rod 411 can be a triangle, a rectangle or other prism shape, and the present invention does not make specific restrictions on this. As another replaceable embodiment, the two ends of the limit rod 411 are respectively connected to the two clamping mechanisms 4 located at the upper and lower sides through a ball joint. By setting the limit rod 411, it can not only adapt to the corresponding adjustment between the clamping mechanisms 4 at the upper and lower sides, but also play a limiting role on the clamping mechanism 4, preventing the clamping mechanism 4 from rotating with the nut sleeve 2042 or the nut seat 304, and playing the role of a guide rail.

[0044] In order to facilitate the adjustment of the clamping mechanism 4 on the positioning device to be on the same horizontal line so that the steel bar is always parallel to the horizontal plane, a laser locator is provided on the nut sleeve 2042 of one of the positioning devices, and a positioning groove 205 is provided on the nut sleeve 2042 of the other positioning device. The positioning groove 205 and the laser locator are arranged opposite to each other. When the laser of the laser locator falls exactly in the positioning groove 205, the front and rear positioning devices are located on the same horizontal line, which is convenient for horizontal calibration.

[0045] Working principle: The invention provides a positioning device for installing the inner template of the steel frame of a box-type prefabricated beam. When in use, first adjust several positioning devices to be located on the same horizontal line through the laser positioning device and the positioning slot 205 on the positioning device, and then rotate the adjustment handle 2043 and the starting motor 303 respectively according to the size of the prefabricated beam to be produced, so as to adjust the angle and distance between several clamping mechanisms 4; or if it is necessary to further increase the distance between the clamping mechanisms 4 on the left and right sides, the distance between the two vertical support mechanisms 2 can be moved so that the telescopic rod 305 between the two lead screws 301 can be extended, and then the four steel bars at the four corners of the inner template of the steel frame can be placed in the clamping mechanism 4 and clamped respectively, and several positioning devices set up the steel bars in parallel, and then cooperate with other steel bars to bundle and build into shape.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A box-type prefabricated beam steel frame inner template installation positioning device, Features: It comprises a plurality of positioning devices arranged in sequence in front and behind; each of the positioning devices comprises a bottom plate; two vertical supporting mechanisms are arranged opposite to each other on the bottom plate; a horizontal supporting mechanism is arranged between the two vertical supporting mechanisms; a clamping mechanism is arranged on the opposite side of the two vertical supporting mechanisms and on the left and right sides of the horizontal supporting mechanism; the clamping mechanism on the vertical supporting mechanism moves in the vertical direction, and the clamping mechanism on the horizontal supporting mechanism moves in the horizontal direction; The vertical support mechanism comprises a counterweight section, a connecting section and a height adjustment section arranged in sequence from bottom to top; the height adjustment section comprises an adjusting screw rotatably connected to the top of the connecting section; an adjusting handle is provided on the top of the adjusting screw; a nut sleeve is threadedly connected to the adjusting screw; a clamping mechanism on the vertical support mechanism is provided on the nut sleeve; The lateral support mechanism comprises two oppositely arranged lead screws, the lead screws of the two lead screws are in opposite directions and are respectively rotatably connected to the connecting section, and the two lead screws rotate synchronously; both lead screws are rotatably connected to a nut seat, and the clamping mechanism located on the lateral support mechanism is arranged on the nut seat; a drive shaft is rotatably connected in the connecting section, one end of the drive shaft is fixedly connected to one end of one of the lead screws, and the other end of the drive shaft passes through the connecting section and is connected to a motor; The clamping mechanism includes an annular fixed disk, a connecting seat is provided on the circumferential side of the fixed disk, and the fixed disk is connected to the nut sleeve and the nut seat respectively through the connecting seat; a driving groove is provided on the fixed disk; an internal gear ring is rotatably connected in the driving groove, and the upper end surface of the internal gear ring is lower than the upper end surface of the fixed disk; an adjusting rod is provided on the circumferential side of the internal gear ring, and an adjusting groove is provided on the fixed disk, and the adjusting rod moves along the circumferential direction of the fixed disk in the adjusting groove; a plurality of pinion gears are meshed on the internal gear ring, and the pinion gears are rotatably connected with the driving groove, and the upper end surface of the pinion gears is higher than the upper end surface of the fixed disk; each of the pinion gears is meshed with a rack, and the rack is slidably connected to the fixed disk and is arranged along the radial direction of the fixed disk; a clamping block is connected to the end surface of the rack through a connecting column; A prismatic telescopic rod is connected between the two lead screws; the telescopic rod is formed by a plurality of telescopic sections slidingly sleeved from the inside to the outside in sequence, and the innermost telescopic section extends a certain distance to form a nesting portion; accommodating grooves for accommodating the two ends of the telescopic rod are respectively provided on the opposite sides of the two lead screws, and the nesting portion and the outermost telescopic section of the telescopic rod are respectively located in the two telescopic grooves; A limit block is provided at the end of the nesting portion and at the end of the telescopic rod away from the nesting portion; a limit groove matching the limit block is provided inside the two lead screws; the limit block is arranged in the limit groove to prevent the telescopic rod from falling out of the telescopic groove.

2. The box-type prefabricated beam reinforcement frame inner template installation and positioning device according to claim 1, Features: A prismatic limiting rod is arranged between the clamping mechanisms at the upper and lower sides, and the limiting rod is hinged to the clamping mechanisms at the upper and lower sides respectively.

3. The box-type prefabricated beam reinforcement frame inner template installation and positioning device according to claim 1, Features: The bottom of the vertical support mechanism is slidably connected to the bottom plate.

4. The box-type prefabricated beam reinforcement frame inner template installation and positioning device according to claim 1, Features: A laser locator is provided on the nut sleeve of one of the positioning devices, and a positioning groove is provided on the nut sleeve of the other positioning device, and the positioning groove is arranged opposite to the laser locator; when the laser of the laser locator falls exactly into the positioning groove, the front and rear positioning devices are located on the same horizontal line.

5. The box-type prefabricated beam reinforcement frame inner template installation and positioning device according to claim 1, Features: The bottom plate is also provided with a plurality of positioning bolts, and the bottoms of the positioning bolts are conical.

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