Socket and spigot type tensioning pedestal

Abstract

The utility model relates to the technical field of prefabricated parts, in particular to a socket type tensioning pedestal which comprises a pedestal body, supporting columns, a driving device, a fixed plate and a movable plate. A plurality of sleeves are arranged on the pedestal in the width direction in an array mode, and the supporting columns are connected with the sleeves in an inserted mode. The supporting column comprises a first section of supporting column located on the table top of the table base, a second section of supporting column located in the sleeve and an inclined section connected between the first section of supporting column and the second section of supporting column. The side face of the first section of supporting column and the side face, opposite to the first section of supporting column, of the second section of supporting column abut against the opposite inner side walls of the sleeve respectively. The table top, located on the tensioning side of the supporting column, of the table base is lower than the table top, located on the non-tensioning side of the supporting column, of the table base. The fixed plate, the driving device and the movable plate are sequentially connected on the tensioning side of the supporting column. Prestressed tendons of the prefabricated part are fixedly connected with the movable plate, and the telescopic end of the driving device pushes the movable plate to move so as to stretch and draw the prestressed tendons.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated components, in particular to a socket-and-spigot type tensioning pedestal. Background Art

[0002] Prestressed precast components are usually prestressed and fixed on a tensioning pedestal before pouring concrete. After the concrete reaches a certain strength, the prestressed tendons are released. The bonding force between the prestressed tendons and concrete is used to create pre-compressive stress in the concrete.

[0003] The tensioning pedestals used in existing factories to produce prefabricated components occupy a large area and have a great impact on the layout of the factory. At the same time, due to the large number of types of prefabricated components, one tensioning pedestal usually cannot meet the tensioning requirements of multiple prefabricated components.

[0004] Therefore, there is an urgent need for a multifunctional tensioning pedestal that is easy to install and disassemble and can produce a variety of prefabricated components. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a socket-and-spigot type tensioning pedestal, which solves the technical problem that the existing tensioning pedestal has a single function.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] A socket-and-spigot tensioning pedestal comprises a pedestal, a support column, a driving device, a fixed plate and a movable plate;

[0010] The pedestal is provided with a plurality of sleeves in an array along the width direction, and the pillars are plugged into the sleeves;

[0011] The support comprises a first section of support located on the table surface of the pedestal, a second section of support located inside the sleeve, and an inclined section connected between the first section of support and the second section of support; the side surface of the first section of support and the side surface of the second section of support opposite to the first section of support are respectively abutted against the opposite inner side walls of the sleeve;

[0012] The table surface of the pedestal located on the tensioning side of the pillar is lower than the table surface height on the non-tensioning side of the pillar;

[0013] The fixed plate, the driving device and the movable plate are connected in sequence on the tensioning side of the pillar;

[0014] The prestressed tendons of the prefabricated component are fixedly connected to the movable plate, and the telescopic end of the driving device pushes the movable plate to move so as to tension the prestressed tendons.

[0015] A fixing plate is correspondingly arranged between every two adjacent pillars, and two ends of the fixing plate are respectively fixedly connected to the pillars.

[0016] It also includes: a first connecting rod passing through the fixed plate, a first fixing member for fixing the first connecting rod to the fixed plate, a second connecting rod passing through the movable plate, a second fixing member and a connecting device for fixing the second connecting rod to the movable plate;

[0017] The prestressed tendons, the first connecting rod and the second connecting rod are fixedly connected in sequence through the connecting device.

[0018] Each of the pillars is correspondingly provided with a supporting steel pipe, and the supporting steel pipe is obliquely arranged on the other side opposite to the tensioning side of the pillar;

[0019] One end of the supporting steel pipe is fixedly connected to the side surface of the pillar, and the other end of the supporting steel pipe is fixedly connected to the table top.

[0020] A slot is provided on the table top corresponding to the supporting steel pipe, and the slot has an inclined side surface so that the bottom end of the supporting steel pipe can abut against the inclined side surface of the slot.

[0021] Adjustable ear plates are also provided on the front and rear sides of the pillar, and the ear plates are used to adjust the verticality of the front and rear sides of the pillar.

[0022] The bottoms of both sides of the pedestal extend outwards and are provided with slopes, and the pedestal is counterweighted by backfilling soil to cover the slopes.

[0023] The horizontal cross-sectional dimensions of the first section support and the second section support are smaller than the sleeve.

[0024] (III) Beneficial effects

[0025] The beneficial effect of the utility model is that the utility model provides a socket-type tensioning pedestal, which enables the pillars to be disassembled through the combination of pillars and sleeves. The positions and quantities of the pillars can be set according to the manufacturing requirements of prefabricated components. There is no need to manufacture multiple different types of tensioning platforms, so that the tensioning pedestal has a wider applicability.

[0026] On the basis of improving the applicability of the tensioning pedestal, the utility model also makes further structural improvements to the pillars. By setting an inclined section between the first section pillar and the second section pillar, the pillar inserted in the sleeve can be directly stressed. At the same time, since the size of the sleeve is larger than that of the pillar, it is not easy for the pillar to be stuck in the sleeve due to deformation, which greatly facilitates installation and disassembly.

[0027] The socket-type tensioning pedestal of the utility model has a concrete structure buried underground or combined with the factory floor, and the pillars are movable, which is easy to disassemble and install. Therefore, when the tensioning pedestal is not in use, the pillars can be directly removed, and the tensioning area can be used as an ordinary factory. At the same time, the pillars can be installed according to different prefabricated products, which greatly improves the applicability and economy of the tensioning pedestal. The tensioning pedestal can be used to produce various components such as prefabricated beams, prefabricated prestressed double T plates, and prefabricated prestressed floor slabs.

[0028] The pier uses the deadweight of backfill soil to resist overturning, which reduces the amount of concrete and saves costs.

[0029] The holes for the socket-type pillars are reserved by using sleeves, and the pillars are designed to be lever-type, which not only conforms to the force principle but also greatly improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram (top view) of the socket-and-spigot type tensioning pedestal of the utility model;

[0031] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in FIG.

[0032] Figure 3 It is a three-dimensional diagram of the socket-and-spigot type tensioning pedestal of the utility model;

[0033] Figure 4 This is a structural schematic diagram (front view) of the pillar and supporting steel pipe of the utility model;

[0034] Figure 5 for Figure 4 Schematic diagram of the cross section at BB in FIG.

[0035] Figure 6 for Figure 4 Schematic cross-sectional view at CC in FIG.

[0036] Figure 7 for Figure 4 Schematic diagram of the cross section at DD in FIG.

[0037] Figure 8 Producing plans for precast beams;

[0038] Fig. 9 for Figure 8Schematic cross-sectional view of EE in FIG.

[0039] Fig.10 Produce floor plans for prefabricated double T panels;

[0040] Fig.11 for Fig.10 Schematic cross-sectional view at FF in FIG.

[0041] Fig.12 Producing floor plans for precast panels;

[0042] Fig.13 for Fig.12 Schematic diagram of the cross section at GG in FIG.

[0043] [Description of Reference Numerals]

[0044] 1: pedestal; 11: table top; 12: backfill soil; 13: casing; 14: thickened raft slab;

[0045] 21: pillar; 211: first section pillar; 212: inclined section; 213: second section pillar; 22: supporting steel pipe; 23: top beam; 24: ear plate; 25: reinforcing rib; 26: stiffening plate;

[0046] 3: driving device; 4: prestressed tendons;

[0047] 5: fixing plate; 51: first connecting rod; 52: first fixing member;

[0048] 6: movable plate; 61: second connecting rod; 62: second fixing member;

[0049] 7: Connecting device; 8: Bottom mold; 9: Fixed beam; 10: Movable beam. DETAILED DESCRIPTION

[0050] In order to better explain the utility model and facilitate understanding, the utility model is described in detail below with reference to the accompanying drawings and through specific implementation methods. Figure 1 The orientation is used as a reference.

[0051] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0052] See also Figure 1-7The utility model provides a socket-type tensioning pedestal, comprising a pedestal 1, a pillar 21, a driving device 3, a fixed plate 5 and a movable plate 6; the pedestal 1 is provided with a plurality of sleeves 13 in an array along the width direction, and the pillars 21 are plugged into the sleeves 13; an inclined section 212 is provided in the middle of the pillar 21, and the inclined section 212 is arranged between a first section pillar 211 of the pillar 21 located on the ground and a second section pillar 213 located inside the sleeve, and the side surface of the first section pillar 211 and the side surface of the second section pillar 213 opposite to the first section pillar 211 are respectively abutted against the inner side wall opposite to the sleeve 13; the fixed plate 5, the driving device 3 and the movable plate 6 are connected in sequence on the tensioning side of the pillar 21. The prestressed tendons 4 of prefabricated components such as prestressed beams, prestressed double T plates, and prestressed plates are fixedly connected to the movable plate 6, and the telescopic end of the driving device 3 pushes the movable plate 6 to move to tension the prestressed tendons 4.

[0053] The casing 13 of this embodiment is a steel casing pre-buried in the pedestal 1 .

[0054] The table surface 11 of the pedestal 1 located on the tensioning side of the pillar 21 is lower than the table surface 11 on the non-tensioning side of the pillar 21 to match the fixed pillar 21. The tensioning side is the side where the driving device 3 for tensioning the prestressed tendons 4 is provided. The non-tensioning side is the side where the prefabricated components are placed.

[0055] The pedestal 1 is of reinforced concrete structure, and a thickened raft 14 is provided at the bottom of the pedestal 1. The thickened raft 14 is used to enhance the bearing capacity of the pedestal 1. When the foundation soil is poor, piles can be driven or the foundation can be reinforced.

[0056] The bottom of the pedestal 1 extends outward and is provided with a slope, on which backfill soil 12 can be used for counterweighting, thereby reducing the use of concrete and saving costs. At the same time, the weight can be flexibly counterweighted according to actual conditions.

[0057] The support 21 includes a first section support 211 located on the ground, a second section support 213 located inside the casing 13, and an inclined section 212 connected between the first section support 211 and the second section support 213, wherein the inclined section 212 is located inside the casing 13. The horizontal cross-sectional dimensions of the first section support 211 and the second section support 213 are smaller than those of the casing 13, and by providing the inclined section 212, the side surface of the first section support 211 and the side surface of the second section support 213 opposite to the first section support 211 are respectively abutted against the opposite inner side walls of the casing 13.

[0058] By combining the support 21 and the sleeve 13, the support 21 can be installed and removed. The position and number of the support 21 can be set according to the manufacturing requirements of the prefabricated components. There is no need to manufacture multiple different types of tensioning platforms, so that the tensioning platform has a wider range of applicability. On the basis of improving the applicability of the tensioning platform, further structural improvements have been made to the support 21. If a traditional straight support is plugged into the sleeve 13, a sleeve 13 with a size close to the support 21 is required. The support 21 will deform after being stressed, and the deformed support 21 is difficult to remove from the sleeve 13, which is not conducive to disassembly. If a sleeve 13 with a cross-sectional size larger than the support 21 is used, the straight support 21 is difficult to fix during tensioning, and the support 21 will have a certain inclination after being stressed. This inclination will not only increase the loss of prestress, but also generate an upward component force, which is easy to cause the fixed plate 5 to slide out, causing danger.

[0059] By providing the inclined section 212 between the first section support 211 and the second section support 213, the two opposite sides of the first section support 211 and the second section support 213 are respectively abutted against the two opposite side walls of the sleeve 13, forming a lever. Under the action of the lever principle, the support 21 can be directly subjected to force. At the same time, since the size of the sleeve 13 is larger than that of the support 21, the support 21 is not easy to be stuck in the sleeve 13 due to deformation, which greatly facilitates installation and disassembly.

[0060] The front and rear sides of the pillar 21 are also provided with ear plates 24, which are used to adjust the verticality of the front and rear sides of the pillar 21. After adjustment, the ear plates 24 are tightened and fixed with steel wedges to prevent the pillar 21 from generating component forces in the front and rear directions.

[0061] The support column 21 adopts a box-type column, and reinforcing ribs 25 and stiffening plates 26 are added at the parts with greater force to ensure that it meets the force requirements.

[0062] A top beam 23 is also provided on the top of the pillar 21 to strengthen the integrity between the pillars 21. In this embodiment, the top beam 23 is made of channel steel.

[0063] A support steel pipe 22 is provided on the non-tensioning side of the pillar 21, and the support steel pipe 22 is used to reduce the stress and top deformation of the pillar 21. One end of the support steel pipe 22 is fixed to the side of the pillar 21, and the other end is fixedly connected to the table 11. In this embodiment, the support steel pipe 22 is a square steel pipe.

[0064] The table 11 is provided with a slot corresponding to the support steel pipe 22, and the slot has an inclined side surface, so that the bottom end of the support steel pipe 22 can abut against the inclined side surface of the slot and be fixed by bolts. The slot is provided to enhance the stability of the support structure and facilitate the fixing of the support steel pipe 22.

[0065] Each two adjacent pillars 21 are provided with a fixed plate 5, and the two ends of the fixed plate 5 are respectively fixedly connected to the two pillars 21. The driving device 3 adopts a jack, the fixed end of the driving device 3 is fixedly connected to the fixed plate 5, and the telescopic end of the driving device 3 is fixedly connected to the movable plate 6.

[0066] The spigot-and-socket tensioning pedestal further includes: a first connecting rod 51 passing through the fixed plate 5, a first fixing member 52 for fixing the first connecting rod 51 on the fixed plate 5, a second connecting rod 61 passing through the movable plate 6, a second fixing member 62 for fixing the second connecting rod 61 on the movable plate 6, and a connecting device 7 for connecting the first connecting rod 51 and the second connecting rod 61. In this embodiment, the first connecting rod 51 and the second connecting rod 61 are made of finely rolled threaded steel, the first fixing member 52 and the second fixing member 62 are made of fine steel nuts, and the connecting device 7 is a wire rod connector.

[0067] During tensioning, the prestressed tendon 4 and the first connecting rod 51 are fixedly connected by the connecting device 7, the first connecting rod 51 and the second connecting rod 61 are fixedly connected by the connecting device 7, and then the second connecting rod 61 is fixed to the movable plate 6 by the second fixing member 62, and the telescopic end of the driving device 3 pushes the movable plate 6 to move in the direction away from the support 21, thereby realizing the tensioning of the prestressed tendon 4.

[0068] By setting up a segmented connecting rod, the tensioning pedestal is easy to disassemble when not in use. At the same time, the connecting rod can connect the prestressed tendons 4 of different types of prefabricated components, so that the prestressed tendons 4 of different types of prefabricated components can be tensioned on the same tensioning pedestal, saving the site occupied by the tensioning pedestal and saving the installation time of the tensioning pedestal.

[0069] Embodiment 1:

[0070] The tensioning method of the socket-type tensioning pedestal is as follows:

[0071] When producing precast beams and double T-slabs, see Figure 8-11 First, lay the bottom form 8 on the table 11, and fix the prestressed tendons 4, the first connecting rod 51 and the second connecting rod 61 in the prefabricated beam or double T-plate in sequence through the connecting device 7. Then, release the first fixing member 52 on the fixed plate 5 for fixing the first connecting rod 51, and lock the second fixing member 62 on the movable plate 6 for fixing the second connecting rod 61. Finally, start the driving device 3 to push the movable plate 6 to move away from the pillar 21. After the tensioning is completed, lock the first fixing member 52, release the second fixing member 62, disconnect the connecting device 7 between the first connecting rod 51 and the second fixing member 62, and fix the prestressed tendons 4 after tensioning.

[0072] Embodiment 2:

[0073] In the production of precast panels, see Figure 12-13 , only two pillars 21 are set on both sides of the pedestal 1, the other pillars 21 are removed, and the fixed plate 5 is replaced by a fixed beam 9, and the movable plate 6 is replaced by a movable beam 10. The two ends of the fixed beam 9 are fixed to the tensioning side of the pillar 21, and a plurality of first connecting rods 51 are provided on the fixed beam 9, and a plurality of second connecting rods 61 are provided on the movable beam 10. The fixed end of the driving device 3 is fixedly connected to the fixed beam 9, and the telescopic end of the driving device 3 is fixedly connected to the movable beam 10. The multiple prestressed tendons 4 of the prefabricated plate are fixed to the first connecting rod 51 on the fixed beam 9 through the connecting device 7, and the first connecting rod 51 is fixed to the second connecting rod 61 through the connecting device 7. The telescopic end of the driving device 3 pushes the movable plate 6 to move in a direction away from the pillar 21 to achieve tensioning of the prestressed tendons 4. After the tensioning is completed, the first fixing member 52 is locked, and the second fixing member 62 is loosened to fix the tensioned prestressed tendons 4.

[0074] The utility model provides a socket-and-spigot type tensioning pedestal. By combining the support 21 and the sleeve 13, the support 21 can be disassembled. The position and number of the support 21 can be set according to the manufacturing requirements of the prefabricated components. There is no need to manufacture multiple different types of tensioning platforms, so that the tensioning pedestal has a wider applicability.

[0075] On the basis of improving the applicability of the tensioning pedestal, the utility model further improves the structure of the support 21. By setting the inclined section 212 between the first section support 211 and the second section support 213, the support 21 inserted in the sleeve can be directly stressed. At the same time, since the size of the sleeve 13 is larger than that of the support 21, it is not easy for the support 21 to be stuck in the sleeve 13 due to deformation, which greatly facilitates installation and disassembly.

[0076] The socket-type tensioning pedestal of the utility model has a concrete structure buried underground or combined with the factory floor, and the pillars 21 are movable, which is easy to disassemble and install. Therefore, when the tensioning pedestal is not in use, the pillars 21 can be directly removed, and the tensioning area can be used as an ordinary factory. At the same time, the pillars 21 can be installed according to different prefabricated products, which greatly improves the applicability and economy of the tensioning pedestal. The tensioning pedestal can be used to produce various components such as prefabricated beams, prefabricated prestressed double T-plates, and prefabricated prestressed floor slabs.

[0077] The pier 11 uses the deadweight of the backfill soil 12 to resist overturning, uses less concrete, and saves costs.

[0078] The holes of the socket-type support 21 are reserved by using a sleeve, and the support 21 is designed to be lever-type, which not only conforms to the force principle but also greatly improves the installation efficiency.

[0079] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0080] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0082] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0083] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A socket-type tensioning pedestal, characterized in that: It comprises a base (1), a support (21), a driving device (3), a fixed plate (5) and a movable plate (6); The pedestal (1) is provided with a plurality of sleeves (13) arranged in an array along the width direction, and the pillars (21) are plugged into the sleeves (13); The support (21) comprises a first section support (211) located on the table surface (11) of the pedestal (1), a second section support (213) located inside the sleeve (13), and an inclined section (212) connected between the first section support (211) and the second section support (213); the side surface of the first section support (211) and the side surface of the second section support (213) opposite to the first section support (211) are respectively abutted against the inner side wall opposite to the sleeve (13); The table surface (11) of the pedestal (1) located on the tensioning side of the pillar (21) is lower than the height of the table surface (11) on the non-tensioning side of the pillar (21); The fixed plate (5), the driving device (3) and the movable plate (6) are connected in sequence on the tensioning side of the support (21); The prestressed tendons (4) of the prefabricated component are fixedly connected to the movable plate (6), and the telescopic end of the driving device (3) pushes the movable plate (6) to move so as to tension the prestressed tendons (4).

2. The socket-and-spigot tensioning pedestal according to claim 1, characterized in that: One fixing plate (5) is correspondingly arranged between every two adjacent pillars (21), and both ends of the fixing plate (5) are respectively fixedly connected to the pillars (21).

3. The socket-and-spigot tensioning pedestal according to claim 2, characterized in that: Also includes: a first connecting rod (51) passing through the fixed plate (5), a first fixing member (52) for fixing the first connecting rod (51) to the fixed plate (5), a second connecting rod (61) passing through the movable plate (6), a second fixing member (62) and a connecting device (7) for fixing the second connecting rod (61) to the movable plate (6); The prestressed tendon (4), the first connecting rod (51) and the second connecting rod (61) are fixedly connected in sequence via the connecting device (7).

4. The socket-and-spigot tensioning pedestal according to claim 3, characterized in that: Each of the pillars (21) is correspondingly provided with a supporting steel pipe (22), and the supporting steel pipe (22) is obliquely arranged on the other side opposite to the tensioning side of the pillar (21); One end of the support steel pipe (22) is fixedly connected to the side surface of the pillar (21), and the other end of the support steel pipe (22) is fixedly connected to the table top (11).

5. The socket-and-spigot tensioning pedestal according to claim 4, characterized in that: The table top (11) is provided with a slot corresponding to the supporting steel pipe (22), and the slot has an inclined side surface, so that the bottom end of the supporting steel pipe (22) can abut against the inclined side surface of the slot.

6. The socket-and-spigot type tensioning pedestal according to claim 1, characterized in that: Adjustable ear plates (24) are also provided on the front and rear sides of the support (21), and the ear plates (24) are used to adjust the verticality of the front and rear sides of the support (21).

7. The spigot-and-socket tensioning pedestal according to claim 1, characterized in that: The bottoms of both sides of the pedestal (1) extend outwards and are provided with slopes, and the pedestal (1) is counterweighted by backfilling soil (12) to cover the slopes.

8. The spigot-and-socket tensioning pedestal according to claim 1, characterized in that: The horizontal cross-sectional dimensions of the first section support (211) and the second section support (213) are smaller than those of the sleeve (13).

Images