Post-cast strip supporting and protecting device

Abstract

The utility model discloses a post-cast strip supporting and protecting device which comprises a steel pipe stand column, an adjusting rod and a detachable inserting piece used for connecting the steel pipe stand column and the adjusting rod. A sleeve is arranged at the top end of the steel pipe stand column, a kidney-shaped hole is formed in the outer wall of the sleeve in the length direction, the adjusting rod can be inserted into the sleeve, a plurality of inserting holes are formed in the adjusting rod, and the detachable inserting piece comprises an inserting rod used for being inserted into the kidney-shaped hole and the inserting holes, an arc-shaped hoop used for abutting against the steel pipe stand column and a connecting piece used for adjusting the opening and closing angle of the inserting rod and the arc-shaped hoop. The height can be adjusted, so that the safety and the stability of a building structure are ensured; the opening and closing angles of the inserting rods and the arc-shaped hoops can be adjusted, the inserting rods are used for connecting kidney-shaped holes of the steel pipe stand columns and inserting holes of the adjusting rods, the arc-shaped hoops are in abutting connection with the surfaces of the steel pipe stand columns, the limiting effect is achieved, the inserting rods are prevented from being separated from the inserting holes in the construction vibration process, the mounting and dismounting processes of frame bodies, formworks, steel pipes and other materials are accelerated, and efficient turnover is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building foundations, and particularly relates to a post-cast strip support and protection device. Background Art

[0002] A post-cast strip is a concrete strip left at corresponding positions such as the foundation slab, wall, beam, etc. in building construction to prevent harmful cracks that may occur due to uneven temperature and shrinkage in the cast-in-place reinforced concrete structure according to design or construction specification requirements.

[0003] An extra-long structure refers to those building structures with lengths exceeding conventional dimensions, such as large public buildings, bridges, etc. The post-cast strip in an extra-long structure is a post-cast strip set in an extra-long structure, mainly used to solve problems such as uneven shrinkage and unequal settlement that may occur during the construction of an extra-long concrete structure.

[0004] For an extra-long structure, the setting of the post-cast strip is particularly important. Due to the construction characteristics of multi-section pouring of an extra-long concrete structure, problems such as uneven self-shrinkage and uneven settlement are likely to occur, thus causing potential safety hazards to the building. As an innovative construction technology, the post-cast strip technology can effectively solve these problems. The functions are as follows: absorbing and dispersing the stress generated by structural deformation; preventing the generation of harmful cracks; adapting to temperature changes; reducing the influence of settlement.

[0005] Currently, in the independent support of the post-cast strip in an extra-long structure, most use stirrups as inserts.

[0006] The advantages are: the materials are easily available and the installation is convenient. During the production of the post-cast strip, by inserting transverse steel bars, the stirrups are convenient to be horizontally inserted into the limit holes to realize height adjustment, and at the same time, the limit of the upright rod can be realized, which can greatly improve the construction efficiency, simplify the construction process, and also improve the construction quality and safety.

[0007] The disadvantages are: in order to make the stirrups stable, the stirrups need to be bent, which is time-consuming and laborious, and the bent stirrups are inconvenient to disassemble. Although the material cost is saved, the disassembled stirrups are easy to be lost, and the labor unit price is 220 yuan per day, which is not economical.

[0008] In case of a tight project schedule and heavy tasks, it is necessary to speed up the installation and disassembly process of materials such as the formwork, formwork, steel pipes, etc. to achieve efficient turnover and avoid being restricted by the waste of materials at the post-cast strip position in the garage and the mess on the site. Content of the Utility Model

[0009] The technical problem to be solved by the present utility model is to provide a post-cast strip support protection device in view of the deficiencies in the above-mentioned prior art. The device has a simple structure, reasonable design, adjustable height, and can ensure the safety and stability of the building structure. The opening and closing angle of the insertion rod and the arc-shaped hoop can be adjusted. The insertion rod is used to connect the waist hole of the steel pipe column and the insertion hole of the adjusting rod, and the arc-shaped hoop is in contact connection with the surface of the steel pipe column to play a limiting role, preventing the insertion rod from disengaging from the insertion hole during construction vibration. The installation and disassembly are convenient, which speeds up the installation and disassembly process of materials such as the formwork, steel pipes, etc., realizes efficient turnover, and has good use effects.

[0010] To solve the above technical problems, the technical solution adopted by the present utility model is: a post-cast strip support protection device, which is characterized in that it includes a steel pipe column, an adjusting rod, and a detachable plug-in for connecting the steel pipe column and the adjusting rod; a sleeve is provided at the top of the steel pipe column, a waist hole is opened along the length direction on the outer wall of the sleeve, the adjusting rod can be inserted into the sleeve, and a plurality of insertion holes are opened on the adjusting rod. The detachable plug-in includes an insertion rod for inserting into the waist hole and the insertion hole, an arc-shaped hoop for abutting against the steel pipe column, and a connecting member for adjusting the opening and closing angle of the insertion rod and the arc-shaped hoop.

[0011] The above-mentioned post-cast strip support protection device is characterized in that: the connecting member includes a torsion spring sleeved on a pin shaft, one end of the torsion spring abuts against one end of the upper pressing plate, and the other end of the upper pressing plate is connected to one end of the arc-shaped hoop; the other end of the torsion spring abuts against one end of the lower pressing plate, and the other end of the lower pressing plate is connected to one end of the insertion rod; upper mounting plates are respectively arranged on both sides of the upper pressing plate, lower mounting plates are respectively arranged on both sides of the lower pressing plate, and the pin shaft is installed on the upper mounting plate and the lower mounting plate.

[0012] The above-mentioned post-cast strip support protection device is characterized in that: the upper pressing plate is connected with an upper guiding plate, the included angle between the upper guiding plate and the horizontal direction is 15 - 45°, the lower pressing plate is connected with a lower guiding plate, and the included angle between the lower guiding plate and the horizontal direction is 15 - 45°.

[0013] The above-mentioned post-cast strip support protection device is characterized in that: the combined length of the upper mounting plate and the lower mounting plate is not less than half of the diameter of the steel pipe column.

[0014] The above-mentioned post-cast strip support protection device is characterized in that: an anti-slip structure is arranged on the inner side of the arc-shaped hoop.

[0015] The above-mentioned post-cast strip support protection device is characterized in that: it further includes an inter-column support connecting member.

[0016] The above post-cast strip support and protection device is characterized in that: the column-to-column support connecting piece is a tee connecting piece, and the tee connecting piece includes a first semi-cylindrical body and a second semi-cylindrical body. Semi-circular holes are provided in the middle of both the first semi-cylindrical body and the second semi-cylindrical body, and the two semi-circular holes form a first circular hole for sleeving a steel pipe column. Locking threaded holes are respectively provided on both sides of the first semi-cylindrical body, and the locking threaded holes are connected with screws.

[0017] The above post-cast strip support and protection device is characterized in that: the column-to-column support connecting piece is a five-way connecting piece, and the five-way connecting piece includes a main body and four connecting arms arranged on the peripheral side of the main body. The four connecting arms are in a cross shape, and the five-way connecting piece is a hollow and communicating structure. A circular hole for sleeving a steel pipe column is provided on the main body, and locking threaded holes are provided on each connecting arm, and the locking threaded holes are connected with screws.

[0018] The above post-cast strip support and protection device is characterized in that: threads are provided on the outer wall of the sleeve, and the fastener is threadedly connected with the sleeve through internal threads.

[0019] The above post-cast strip support and protection device is characterized in that: a base plate is provided at the bottom end of the steel pipe column, and a jack is provided at the top end of the adjusting rod.

[0020] The present utility model has the following advantages compared with the prior art:

[0021] 1. The structure of the present utility model is simple and reasonably designed, and the realization and use operations are convenient.

[0022] 2. The detachable plug-in of the present utility model includes a plug rod and an arc-shaped hoop. The opening and closing angle of the plug rod and the arc-shaped hoop can be adjusted. The plug rod is used to connect the waist hole of the steel pipe column and the jack hole of the adjusting rod. The arc-shaped hoop is in contact connection with the surface of the steel pipe column to play a limiting role and prevent the plug rod from disengaging from the jack hole during construction vibration. The installation and disassembly are convenient, which speeds up the installation and disassembly process of materials such as the formwork, the formwork, and the steel pipe, realizes efficient turnover, and has good use effects.

[0023] 3. The post-cast strip independent support structure of the present utility model can adjust the height, and the installation and disassembly are convenient. It can absorb and disperse the stress generated by the formation of the post-cast strip of the super-long structure, prevent the generation of harmful cracks, reduce the settlement influence, and thus ensure the safety and stability of the building structure.

[0024] To sum up, the present utility model has a simple structure and reasonable design, can adjust the height, and ensures the safety and stability of the building structure; the opening and closing angle of the plug rod and the arc-shaped hoop can be adjusted. The plug rod is used to connect the waist hole of the steel pipe column and the jack hole of the adjusting rod. The arc-shaped hoop is in contact connection with the surface of the steel pipe column to play a limiting role and prevent the plug rod from disengaging from the jack hole during construction vibration. The installation and disassembly are convenient, which speeds up the installation and disassembly process of materials such as the formwork, the formwork, and the steel pipe, realizes efficient turnover, and has good use effects.

[0025] The technical solution of the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model.

[0027] Figure 2 is Figure 1 exploded view.

[0028] Figure 3 It is a schematic structural diagram of the detachable plug-in of the present utility model.

[0029] Figure 4 It is a schematic structural diagram of the first embodiment of the present utility model.

[0030] Figure 5 is Figure 4 exploded view.

[0031] Figure 6 It is a schematic structural diagram of the five-way connecting piece.

[0032] Figure 7 It is a schematic structural diagram of the second embodiment of the present utility model.

[0033] Figure 8 is Figure 7 exploded view.

[0034] Figure 9 It is a schematic diagram of the combined length of the upper mounting plate and the lower mounting plate.

[0035] Description of the Reference Numerals:

[0036] 1 - steel pipe column; 11 - sleeve; 12 - waist hole;

[0037] 21 - jack; 2 - adjusting rod; 3 - backing plate;

[0038] 4 - top support; 51 - five-way connecting piece;

[0039] 511 - connecting arm; 512 - locking threaded hole; 513 - screw;

[0040] 514 - round hole; 52 - three-way connecting piece; 6 - fastener;

[0041] 7 - detachable plug-in; 71 - upper guiding plate; 72 - lower guiding plate;

[0042] 73 - lower pressing plate; 74 - pin shaft; 75 - lower mounting plate;

[0043] 76 - torsion spring; 77 - upper pressing plate; 78 - upper mounting plate;

[0044] 79 - Arc-shaped hoop; 710 - Insert rod. Specific implementation manner

[0045] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present utility model.

[0046] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0047] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to this application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the implementation manners of this application described here can be implemented in an order different from those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0049] For the sake of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used here will be made.

[0050] Embodiment 1

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model includes a steel pipe column 1, an adjusting rod 2, and a detachable plug-in 7 for connecting the steel pipe column 1 and the adjusting rod 2; a sleeve 11 is provided at the top of the steel pipe column 1, and a waist hole 12 is opened on the outer wall of the sleeve 11 along the length direction, the adjusting rod 2 can be inserted into the sleeve 11, and a plurality of insertion holes 21 are opened on the adjusting rod 2. The detachable plug-in 7 includes an insertion rod 710 for inserting into the waist hole 12 and the insertion hole 21, an arc hoop 79 for abutting against the steel pipe column 1, and a connecting piece for adjusting the opening and closing angles of the insertion rod 710 and the arc hoop 79.

[0052] In actual use, first insert the adjustment rod 2 into the steel pipe column 1, align the insertion hole 21 and the waist hole 12, and then insert the insertion rod 710 into the insertion hole 21 and the waist hole 12, so as to limit the steel pipe column 1 and the adjustment rod 2, so as to adjust the combined height of the steel pipe column 1 and the adjustment rod 2. While inserting the insertion rod 710, adjust the opening and closing angle of the insertion rod 710 and the arc hoop 79 to ensure that the arc hoop 79 does not hinder the insertion process when the insertion rod 710 is inserted into the insertion hole. After the insertion rod 710 is inserted into the insertion hole, adjust the opening and closing angle of the insertion rod 710 and the arc hoop 79 again to ensure that the arc hoop 79 is in contact with the surface of the steel pipe column 1, which plays a role of limiting and preventing the insertion rod 710 from being separated from the insertion hole 21 during construction vibration. It is easy to install and has good use effect.

[0053] The independent support structure of the post-cast strip of the present application can adjust the height and is easy to install and disassemble. The inserted rod 710 preferably adopts high-strength steel bars, such as HRB400 steel bars and HRB500 steel bars. The arc hoop 79 adopts a half-piece hoop made of Q345B high-strength steel. The half-piece hoop is in the shape of a semicircular ring. The two ends of the semicircular ring are bent outward. The thickness is 0.5mm-10mm, the height is 50mm-00mm, and the diameter is determined according to the diameter of the steel pipe column 1. The role of the independent support structure of the post-cast strip is reflected in: it can absorb and disperse the stress generated by the formation of the post-cast strip of the super-long structure, prevent the occurrence of harmful cracks, and reduce the influence of settlement, thereby ensuring the safety and stability of the building structure.

[0054] In this embodiment, the connecting member includes a torsion spring 76 sleeved on the pin shaft 74, one end of the torsion spring 76 abuts against one end of the upper pressing plate 77, and the other end of the upper pressing plate 77 is connected to one end of the arc hoop 79; the other end of the torsion spring 76 abuts against one end of the lower pressing plate 73, and the other end of the lower pressing plate 73 is connected to one end of the insert rod 710; upper mounting plates 78 are respectively provided on both sides of the upper pressing plate 77, and lower mounting plates 75 are respectively provided on both sides of the lower pressing plate 73, and the pin shaft 74 is installed on the upper mounting plate 78 and the lower mounting plate 75.

[0055] During actual use, when pressing the upper pressing plate 77 and the lower pressing plate 73, when the torsion spring 76 is subjected to the twisting force from the upper pressing plate 77 and the lower pressing plate 73, the torsion spring 76 will deform and store energy. At the same time, the upper pressing plate 77 and the lower pressing plate 73 will displace with the pin shaft 74 as the fulcrum. During this process, the end torsion arms of the torsion spring 76 will rotate relative to each other until the required torsion angle is reached, changing the opening and closing angle of the adjusting insertion rod 710 and the arc-shaped hoop 79, facilitating the insertion of the insertion rod 710 into the insertion hole 21 and the waist-shaped hole 12. When the force pressing the upper pressing plate 77 and the lower pressing plate 73 is removed, the torsion spring 76 will release the previously stored energy, and the end torsion arms of the torsion spring 76 will quickly return to their original positions. At the same time, the generated rotational force drives the upper pressing plate 77 and the lower pressing plate 73 to return to their original positions, causing the arc-shaped hoop 79 to be in contact connection with the surface of the steel pipe column 1.

[0056] In this embodiment, the upper pressing plate 77 is connected with an upper force guiding plate 71, and the angle between the upper force guiding plate 71 and the horizontal direction is 15 - 45°. The lower pressing plate 73 is connected with a lower force guiding plate 72, and the angle between the lower force guiding plate 72 and the horizontal direction is 15 - 45°.

[0057] During actual use, the settings of the upper force guiding plate 71 and the lower force guiding plate 72 make up for the lengths of the upper pressing plate 77 and the lower pressing plate 73, increase the length of the force arm, and convert a smaller input torque into a larger output torque through the lever principle, enabling the torsion spring 76 to deform with a smaller force and having a good use effect.

[0058] As Figure 9 shown, in this embodiment, the combined length of the upper mounting plate 78 and the lower mounting plate 75 is not less than half of the diameter of the steel pipe column 1. The combined length d of the upper mounting plate 78 and the lower mounting plate 75 refers to the vertical distance between the lower pressing plate 73 and the upper pressing plate 77, d ≥ 0.5R, where R represents the diameter of the steel pipe column 1.

[0059] In this embodiment, an anti-slip structure is provided on the inner side of the arc-shaped hoop 79. The anti-slip structure is a frosted layer or an anti-slip strip. It should be noted that the frosted layer is a rough surface provided on the inner side of the arc-shaped hoop 79. The anti-slip strip is a rubber strip or a latex strip.

[0060] In this embodiment, the outer wall of the sleeve 11 is provided with threads, and the fastener 6 is threadedly connected to the sleeve 11 through internal threads. By threadedly connecting the fastener 6 and the sleeve 11, the height of the waist-shaped hole 12 can be adjusted, and further the connection height between the steel pipe column 1 and the adjusting rod 2 can be adjusted.

[0061] In this embodiment, a base plate 3 is provided at the bottom end of the steel pipe column 1, and a jack 4 is provided at the top end of the adjusting rod 2. The base plate 3 serves to support the entire structure, and the base plate 3 should ensure stability and load-bearing capacity. The jack 4 is usually fixed on the adjusting rod 2 and is used to support and disperse the load. The jack 4 should ensure flatness and load-bearing capacity.

[0062] During actual use, before the installation of the ordinary beam and slab formwork and the pouring of concrete, a post-cast strip independent support structure is set according to the established support points, and the jack 4 is sleeved with the traditional formwork support. The structure of the jack 4 includes square or rectangular, circular, and polygonal shapes. Square or rectangular shapes are easy to manufacture and standardize, and at the same time can provide a good support area. The circular shape is particularly suitable for situations where a uniform load distribution is required or for adapting to circular structures, and can provide a more uniform support. The polygonal pallet is used to adapt to polygonal structures or for a more flexible support layout.

[0063] In a possible embodiment, double-layer and double-directional steel bars are arranged in the post-cast strip of the ultra-long structure of the garage roof. The post-cast strip independent support structure can play a temporary support role for the roof cantilever at the post-cast strip of the ultra-long structure, effectively reducing the harmful stress on the cantilever roof of the post-cast strip.

[0064] The construction sequence is as follows:

[0065] First, remove the wire mesh and wooden squares reserved on both sides of the post-cast strip of the ultra-long structure to ensure the accurate and clean position of the post-cast strip of the ultra-long structure. Chisel out the flowing mortar and excess concrete blocks in the beam and slab of the post-cast strip of the ultra-long structure, and clean up all the original concrete waste. Clean the attachments on the steel bars in the post-cast strip of the ultra-long structure, as well as the floating mortar and garbage at the joint between the post-cast strip and the floor slab.

[0066] Second, rust removal, straightening, and binding of the steel bars at the post-cast strip of the ultra-long structure are carried out. Ensure that the lap joint and repair welding of the steel bars meet the design requirements, and check the binding situation of the steel bars to prevent missing binding or wrong binding.

[0067] Third, select appropriate formwork materials for installation according to the width and shape of the post-cast strip of the ultra-long structure. The formwork should be set up flat and firmly, and the joint with the concrete structure on both sides of the post-cast strip of the ultra-long structure should be tight to prevent the leakage of concrete slurry. Use tie rods or other fixing methods to fix the formwork well to ensure that the formwork will not deform or displace during construction.

[0068] Taking a two-story garage as an example, the underground first floor garage has a floor height of 3.6 meters, and the underground second floor garage has a floor height of 3.66 meters. The garage foundation is an independent foundation + waterproof board, and the main building foundation is a raft + lower column pier. The seismic fortification intensity is 8 degrees. There are two underground floors, and the service life of the main structure is 50 years. The thickness of the basement roof is 100 / 160mm, and the concrete strength is C30; the thickness of the underground second floor roof is 110~200mm, and 250mm in some parts, and the concrete strength grade is C35; the thickness of the waterproof board is 250~600mm, and the concrete strength grade is C30; the width of the post-cast strip is 800mm, and 300 wide water-stop steel plates are embedded on both sides of the post-cast strip.

[0069] Fourth, install the independent support structure of the post-casting strip. The installation of the independent support structure of the post-casting strip is usually carried out at the same time as the installation of the post-casting strip formwork, or installed later to ensure the stability of the post-casting strip formwork. Taking the garage as an example, determine the support points and spacing of the post-casting strips on the second and first floors of the garage; the number of steel pillars at the bottom of the large-section beam; and the arrangement of steel pillars at the bottom of the cantilever member. The pitch of the steel pipe column 1 should not be greater than 1.8m; the pitch of the top steel pipe column 1 should be appropriately reduced and should not be greater than 1.5m. The outer diameter of the adjusting rod 2 should not be less than 36mm, and the insertion depth of the adjusting rod 2 should not be less than 180mm.

[0070] In actual use, first insert the adjustment rod 2 into the steel pipe column 1, align the socket 21 and the waist hole 12, then adjust the opening and closing angles of the plug rod 710 and the arc hoop 79, insert the plug rod 710 into the socket 21 and the waist hole 12, and after the plug rod 710 is inserted into the socket, adjust the opening and closing angles of the plug rod 710 and the arc hoop 79 again to ensure that the arc hoop 79 is in contact with the surface of the steel pipe column 1, which plays a role in limiting and preventing the plug rod 710 from being separated from the socket 21 during construction vibration. Finally, the assembled post-casting strip independent support structure is set according to the established support point position, and the pad 3 is accurately placed on the positioning line. The length of the pad 3 is not less than 2 spans, the thickness is not less than 50mm, and the width is not less than 200mm. The top support 4 is mounted on the traditional formwork frame.

[0071] Fifth, invite the supervision unit to inspect the post-casting zone to ensure that the steel bars, formwork, etc. in the post-casting zone meet the design requirements and construction specifications.

[0072] Sixth, pouring concrete, when pouring concrete, you must control the pouring speed and vibration strength of the concrete. Ensure that the concrete is evenly distributed in the post-casting zone and vibrated to make it dense. After pouring, the concrete should be cured in time to prevent cracks and other quality problems.

[0073] Seventh, the post-casting strip formwork and the post-casting strip independent support structure can be removed only after the concrete reaches the design strength requirements. When removing the post-casting strip independent support structure, pay attention to safety to prevent accidents such as collapse.

[0074] Embodiment 2

[0075] Different from the first embodiment, in this embodiment, a column bracing connector is further included. The column bracing connector is a five-way connector 51.

[0076] As Figure 4 , Figure 5 and Figure 6 shown, the column bracing connector is a five-way connector 51. The five-way connector 51 includes a body and four connecting arms 511 arranged on the peripheral side of the body. The four connecting arms are in a cross shape. The five-way connector 51 is a hollow and communicating structure. A round hole 514 for sleeving the steel pipe column 1 is formed on the body. A locking threaded hole 512 is formed on each connecting arm 511. The locking threaded hole 512 is connected with a screw 513.

[0077] The five-way connector 51 connects the five independent support structures of the post-cast strips in the front, back, left, right, and middle, so that when the structure bears external forces, no matter which direction the lateral external force is, it is not easy to deform, strengthening the stiffness of the structure, transferring and dispersing loads, improving the reliability of the independent support structure of the post-cast strip, and ensuring the safety and stability of use.

[0078] During actual use, the steel pipe column 1 of each independent support structure of the post-cast strip is sleeved in the round hole 514, and then a steel pipe is used to connect the connecting arms 511 of two adjacent five-way connectors 51. One end of the steel pipe extends into one connecting arm 511 of one five-way connector 51, and the other end of the steel pipe extends into one connecting arm 511 of another five-way connector 51. Then, the screw 513 is screwed into the locking threaded hole 512 so that the screw 513 abuts against the steel pipe to achieve a firm connection.

[0079] Embodiment Three

[0080] Different from the first embodiment, in this embodiment, a column bracing connector is further included. The column bracing connector is a three-way connector 52.

[0081] As Figure 6 and Figure 7 shown, the column bracing connector is a three-way connector 52. The three-way connector 52 includes a first semi-cylinder and a second semi-cylinder. Semi-circular holes are formed in the middle of the first semi-cylinder and the second semi-cylinder. The two semi-circular holes form a first round hole for sleeving the steel pipe column 1. Locking threaded holes are respectively formed on both sides of the first semi-cylinder. The locking threaded holes are connected with screws.

[0082] The column bracing connector connects two adjacent independent support structures of the post-cast strips, so that when the structure bears external forces, especially lateral external forces, it is not easy to deform, strengthening the stiffness of the structure, transferring and dispersing loads, improving the reliability of the independent support structure of the post-cast strip, and ensuring the safety and stability of use.

[0083] During actual use, one set of steel pipe columns of each independent support structure for post-cast strip is sleeved in a first circular hole formed by two semi-circular holes. Then, adjacent two three-way connectors 52 are connected by steel pipes. One end of the steel pipe extends into one end of one three-way connector 52, and the other end of the steel pipe extends into one end of the other three-way connector 52. Then, the screw is screwed into the locking threaded hole so that the screw abuts against the steel pipe to achieve a firm connection.

[0084] Among them, the content not described in detail in the specification belongs to the prior art well-known to those skilled in the art.

[0085] The above are only embodiments of the present invention and do not impose any limitation on the present invention. Any simple modification, change, and equivalent structural change made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A post-cast strip support and protection device, characterized in that: It includes a steel pipe column (1), an adjusting rod (2), and a detachable plug-in (7) for connecting the steel pipe column (1) and the adjusting rod (2); At the top of the steel pipe column (1), a sleeve (11) is provided. A waist-shaped hole (12) is formed in the outer wall of the sleeve (11) along the length direction. The adjusting rod (2) can be inserted into the sleeve (11), and a plurality of jack holes (21) are formed in the adjusting rod (2). The detachable plug-in (7) includes a plug rod (710) for inserting into the waist-shaped hole (12) and the jack hole (21), an arc-shaped hoop (79) for abutting against the steel pipe column (1), and a connecting member for adjusting the opening and closing angle of the plug rod (710) and the arc-shaped hoop (79).

2. The post-cast strip support and protection device according to claim 1, characterized in that: The connecting member includes a torsion spring (76) sleeved on a pin shaft (74). One end of the torsion spring (76) abuts against one end of an upper pressing plate (77), and the other end of the upper pressing plate (77) is connected to one end of the arc-shaped hoop (79); the other end of the torsion spring (76) abuts against one end of a lower pressing plate (73), and the other end of the lower pressing plate (73) is connected to one end of the plug rod (710); upper mounting plates (78) are respectively arranged on both sides of the upper pressing plate (77), lower mounting plates (75) are respectively arranged on both sides of the lower pressing plate (73), and the pin shaft (74) is installed on the upper mounting plates (78) and the lower mounting plates (75).

3. A post-cast strip support and protection device according to claim 2, characterized in that: The upper pressing plate (77) is connected with an upper force guiding plate (71), and the included angle between the upper force guiding plate (71) and the horizontal direction is 15 - 45°. The lower pressing plate (73) is connected with a lower force guiding plate (72), and the included angle between the lower force guiding plate (72) and the horizontal direction is 15 - 45°.

4. A post-cast strip support and protection device according to claim 2, characterized in that: The combined length of the upper mounting plate (78) and the lower mounting plate (75) is not less than half of the diameter of the steel pipe column (1).

5. A post-cast strip support and protection device according to claim 1, characterized in that: An anti-slip structure is arranged on the inner side of the arc-shaped hoop (79).

6. The post-cast strip support and protection device according to claim 1, wherein: It also includes an inter-column support connecting member.

7. A post-cast strip support and protection device according to claim 6, characterized in that: The inter-column support connecting member is a three-way connecting member (52). The three-way connecting member (52) includes a first semi-cylindrical part and a second semi-cylindrical part. Semi-circular holes are respectively formed in the middle of the first semi-cylindrical part and the second semi-cylindrical part. The two semi-circular holes form a first circular hole for sleeving the steel pipe column (1). Locking threaded holes are respectively formed on both sides of the first semi-cylindrical part, and the locking threaded holes are connected with screws.

8. A post-cast strip support and protection device according to claim 6, characterized in that: The inter-column support connecting member is a five-way connecting member (51). The five-way connecting member (51) includes a body and four connecting arms (511) arranged on the periphery of the body. The four connecting arms are in a cross shape. The five-way connecting member (51) is a hollow and communicating structure. A circular hole (514) for sleeving the steel pipe column (1) is formed in the body. Locking threaded holes (512) are respectively formed on each connecting arm (511), and the locking threaded holes (512) are connected with screws (513).

9. A post-cast strip support and protection device according to claim 1, characterized in that: Threads are formed on the outer wall of the sleeve (11), and the fastener (6) is threadedly connected with the sleeve (11) through internal threads.

10. A post-cast strip support and protection device according to claim 1, characterized in that: A base plate (3) is arranged at the bottom end of the steel pipe column (1), and a top support (4) is arranged at the top end of the adjusting rod (2).

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