A grid support suitable for a large-span grid structure system and a method of using the same

Abstract

The present invention discloses a grid support suitable for a large-span grid structure system and a method for using the grid support. The grid support includes a lower embedded component, an upper connecting component and a high-strength connecting piece. The lower embedded component includes a support base plate, an embedded steel plate and an anchor rod. The anchor rod and the embedded steel plate are both embedded in a concrete foundation, and the support base plate is arranged on the embedded steel plate; the upper connecting component includes a protective shell, a spring element, a support bolt ball and an adaptive anti-buckling support. The protective shell is connected to the support base plate, and the support bolt ball is installed in the protective shell through the adaptive anti-buckling support and is used in conjunction with the grid rod. The spring element is arranged on the grid rod. The grid support can be easily disassembled and replaced when in use, so that the structure itself is basically in an elastic working state, providing shock absorption and energy consumption when an earthquake occurs. At the same time, through the arrangement of the spring element, the deformation capacity of the support node can be coordinated, and it has the characteristics of high installation flexibility, easy use and adjustment, and good buffering effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of grid supports, and in particular relates to a grid support suitable for a large-span grid structure system and a method for using the same. Background Art

[0002] Grid structures have been widely used in large-span spatial structures due to their diverse shapes and functions. However, from the many collapse accidents that have occurred in recent years, we can see that in large-span spatial structures, the support nodes connecting the upper grid structure and the lower concrete support are the most vulnerable parts of the structure. When the upper grid support is subjected to large earthquakes and extreme accidental loads, if it does not have sufficient energy dissipation and deformation capacity, the support and the lower supporting concrete will be damaged, and an effective connection and joint load bearing effect will not be formed, which will eventually lead to the collapse of the entire building and an engineering accident.

[0003] The existing grid supports in my country mostly adopt hinged supports, rigid supports and plate rubber supports. When using them:

[0004] (1) When the existing grid supports are in use, large external loads will increase the stress on the fastening bolts and anchor rods, and even further lead to damage to the lower supporting structure, thus affecting the safety of the entire structure;

[0005] (2) The elastic deformation capacity of existing grid supports is limited, and the support force is mainly borne by the lower support system. Therefore, when the upper grid supports are subjected to large earthquakes and extreme accidental loads, it is easy to cause damage to the lower support structure;

[0006] (3) After installation, the existing grid supports are damaged by external forces acting on the upper structure, which makes it difficult to effectively repair and replace the upper structure of the grid supports.

[0007] Therefore, there is an urgent need to design a grid support structure suitable for a large-span grid structure system to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0008] In view of the defects of the above-mentioned prior art, the purpose of the present invention is to provide a truss support suitable for a large-span truss structure system and a method of using the same. The support is provided with a lower embedded component and an upper connecting component, and can be easily disassembled and replaced with appropriate accessories during use, so that the structure itself is basically in an elastic working state, ensuring the self-bearing capacity of the truss support and providing shock absorption and energy consumption when an earthquake occurs; at the same time, through the provision of spring elements, the deformation capacity of the support nodes can be coordinated, and the influence of external loads on the support nodes can be reduced. It has the characteristics of high installation flexibility, easy use and adjustment, and good buffering effect.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0010] A grid support suitable for a large-span grid structure system, comprising a lower embedded component, an upper connecting component and a high-strength connecting piece.

[0011] The lower embedded assembly includes a support base plate, an embedded steel plate and a plurality of anchor rods. The anchor rods are arranged on the lower side of the embedded steel plate and are embedded in the lower concrete foundation together with the embedded steel plate. The support base plate is arranged on the embedded steel plate and is connected to the embedded steel plate through a transition plate.

[0012] The upper connection assembly is arranged on the upper side of the support base plate, and includes a protective shell, a spring element, a support bolt ball and an adaptive anti-bend support. The protective shell is dome-shaped and is connected to the support base plate through a high-strength connector. The support bolt ball is installed in the protective shell through an adaptive anti-bend support and is used in conjunction with the truss rods arranged on the lower side of the upper truss. The truss rods are used in conjunction with the protective shell. The spring element is arranged on the truss rods in the protective shell and is used in conjunction with the protective shell.

[0013] Preferably, the outer side of the protective shell is symmetrically provided with stiffening ribs, and the inner side is provided with a rubber layer; and a circular hole is also opened on the top of the protective shell, and the circular hole is used in conjunction with the grid rod;

[0014] The support bolt ball is also provided with a sleeve, which is used in conjunction with the grid rod.

[0015] Preferably, the adaptive anti-bend support comprises a cylinder, a piston rod, a latch and a first return spring.

[0016] The cylinder body is a sealed cylinder, and a limiting ring and a piston are symmetrically arranged in the cylinder body for use in conjunction with each other, and the piston is arranged outside the limiting ring. A mutually sealed balancing chamber and two telescopic chambers symmetrically arranged on both sides of the balancing chamber are formed in the cylinder body, and an adaptive pressure balancing mechanism is also provided between the balancing chamber and the telescopic chamber.

[0017] The first return spring is arranged in the balance chamber and is connected to two symmetrically arranged pistons;

[0018] The piston rod is movably mounted on the cylinder body through a first seal, and the inner end of the piston rod is connected to the piston, and the outer end is provided with a connecting splint, and the connecting splint is used in conjunction with a node plate provided on the support base plate and the support bolt ball;

[0019] The latch is used in conjunction with the connecting clamping plate and the gusset plate.

[0020] Preferably, the cylinder body is symmetrically provided with a first air pipe and a second air pipe, the first air pipe is connected to the telescopic chamber, the second air pipe is connected to the balance chamber, and the second air pipe is a three-way air pipe, and the adaptive pressure balancing mechanism is arranged between the first air pipe and the second air pipe.

[0021] Preferably, the adaptive pressure balancing mechanism includes a flow guide housing, and a first sealing member and a flow sealing needle arranged in the flow guide housing.

[0022] The guide housing is arranged between the first air pipe and the second air pipe, and a first air flow channel and a second air flow channel are arranged in the guide housing. The air inlet end of the first air flow channel is arranged at an end close to the first air pipe and is used in conjunction with the first sealing member; the air inlet end of the second air flow channel is arranged at an end close to the second air pipe, and a flow blocking diaphragm and a third air pipe are arranged on the second air flow channel, and the end of the third air pipe is connected to the sealing housing;

[0023] The first sealing member is arranged in the guide housing via a second return spring and is used in conjunction with the air inlet end of the first air flow channel;

[0024] The flow-blocking needle is arranged in the sealing housing and is used in conjunction with the flow-blocking diaphragm.

[0025] Preferably, the front end needle of the sealing needle passes through the sealing shell and the side wall of the second air flow channel in sequence, and an oblique section is provided at the front end of the sealing needle for use in conjunction with the flow-blocking diaphragm. The flow-blocking diaphragms are symmetrically and staggered with each other, and the staggered gaps of the flow-blocking diaphragms are used in conjunction with the oblique section of the front end of the sealing needle.

[0026] Preferably, the third air pipe is arranged at one end close to the second air pipe and is connected to the sealed shell; the tail end of the sealing needle is connected to the second sealing member movably arranged in the sealed shell, and a first magnet is provided at the tail of the second sealing member, and the first magnet is used in conjunction with the second magnet provided in the sealed shell.

[0027] Preferably, the second magnet is arranged in the sealed housing through an adjusting assembly, and the adjusting assembly includes an outer sleeve, a chuck and an adjusting member arranged on the outer sleeve.

[0028] The outer sleeve is a threaded piece, and an external thread is provided on the outside of the outer sleeve to cooperate with the internal thread provided on the top plate of the sealing shell;

[0029] The chuck is rotatably mounted on the lower end of the outer sleeve via a pin and is used in conjunction with the second magnet;

[0030] The adjusting member is movably arranged on the outer sleeve through an adjusting nut, and a diagonal support plate is integrally formed at the lower end of the adjusting member. The diagonal support plate is used in conjunction with the chuck, and a third limit spring is also sleeved on the inner rod of the adjusting member.

[0031] Preferably, an inner slot is provided on the inner side surface of the chuck, and the inner slot is used in conjunction with the second magnet.

[0032] A construction method for a grid support suitable for a large-span grid structure system, comprising:

[0033] Step 1. Before use, weld the anchor rods to the lower side of the embedded steel plate, and tie the embedded steel plate and anchor rods into the lower concrete foundation for pouring;

[0034] Step 2. After pouring is completed, weld the support base plate to the embedded steel plate through the transition plate;

[0035] Step 3. Then, lay the bottom rubber layer and install the support bolt ball on the upper side of the support base plate through the adaptive anti-bend support. Then, put the protective shell and spring element on the grid rods and connect the grid rods to the sleeves.

[0036] Step 4. Finally, press down the protective shell and use high-strength connectors to connect the protective shell to the support base plate to complete the installation of the adaptive deformable grid support.

[0037] The beneficial effects of the present invention are as follows: the present invention discloses a grid support suitable for a large-span grid structure system and a method for using the same. Compared with the prior art, the improvements of the present invention are:

[0038] The present invention designs a grid support suitable for a large-span grid structure system, comprising a lower embedded component and an upper connecting component that cooperate with each other. When used:

[0039] 1. This grid support uses high-strength connectors to fasten the protective shell to the support base plate, thereby ensuring the firmness of the support body installation. The setting of the protective shell can protect the support bolt ball and the entire support. At the same time, the arrangement of stiffening ribs on the outside of the protective shell further improves the bearing capacity of the entire support.

[0040] 2. This grid support effectively reduces the impact of external loads on the support nodes by arranging spring elements on the grid members to coordinate the deformation capacity of the support nodes. Furthermore, the support bolt balls are connected to the support base plate via adaptive anti-buckling supports, which prevent the upper members from buckling during use, ensuring that the structure operates in a basically elastic state. Furthermore, the adaptive anti-buckling supports can attenuate external forces, providing shock absorption and energy dissipation during earthquakes, thereby protecting the grid members and the underlying concrete foundation.

[0041] 3. When in use, the truss support can detect the over-limit situation of the structure in time through the setting of the vibrating wire strain gauge, and carry out disassembly and replacement, which can ensure the durability of the normal operation of the support node, facilitate the loading and unloading and maintenance of the support, and has the advantages of high installation flexibility, easy use and adjustment, and good buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic structural diagram of the replaceable deformable grid support of the present invention.

[0043] Figure 2 This is a cross-sectional view of the replaceable deformable grid support of the present invention from the main viewing angle.

[0044] Figure 3 This is a cross-sectional view from a top view of the replaceable deformable grid support of the present invention.

[0045] Figure 4 It is a schematic structural diagram of the adaptive anti-bend support member of the present invention.

[0046] Figure 5 It is a cross-sectional view of the adaptive anti-bend support member of the present invention.

[0047] Figure 6 This is an installation effect diagram of the adaptive pressure balancing mechanism of the present invention.

[0048] Figure 7 This is a cross-sectional view of the adaptive pressure balancing mechanism of the present invention during positive pressure release.

[0049] Figure 8 This is a cross-sectional view of the adaptive pressure balancing mechanism of the present invention during reverse pressure release.

[0050] Figure 9 It is a partial enlarged view of the adaptive pressure balancing mechanism A of the present invention.

[0051] Figure 10 It is a partial enlarged view of the adaptive pressure balancing mechanism B of the present invention.

[0052] Figure 11 It is a structural schematic diagram of the chuck of the present invention.

[0053] Wherein: 1. Protective shell; 2. Stiffening ribs; 3. Rubber layer; 4. Spring element; 5. Support bolt ball; 6. Node plate; 7. Adaptive anti-buckling support; 8. Grid member; 9. Vibrating wire strain gauge; 10. High-strength connector; 11. Nut; 12. Gasket; 13. Support base plate; 14. Transition plate; 15. Embedded steel plate; 16. Anchor rod; 17. Concrete foundation; 18. Casing; 19. Cylinder body; 20. Piston rod; 21. Connecting splint; 22. Limiting ring; 23. Telescopic chamber; 24. Piston; 25. First seal; 26. First return spring; 27. First air pipe; 28. Second air pipe; 29. ​​Diversion shell; 30. First seal; 31. First air channel; 32. Second air flow channel, 33. choke diaphragm, 34. Third air pipe, 35. Second return spring, 36. Sealing shell, 37. Sealing needle, 38. Second sealing member, 39. First magnet, 40. Second magnet, 41. Outer kit, 42. Chuck, 43. Adjusting member, 44. Third limit spring, 45. Adjusting nut, 46. Diagonal support plate, 47. Pin, 48. Inner slot, 49. Balance chamber. DETAILED DESCRIPTION

[0054] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0055] Example 1: Refer to the attached Figure 1-11 The grid support shown is suitable for a large-span grid structure system, comprising a lower embedded component, an upper connecting component and a high-strength connecting member 10, wherein

[0056] The lower embedded assembly includes embedded parts and a support base plate 13. The embedded parts are pre-cast in the supporting structure of the lower concrete foundation 17. The support base plate 13 is arranged on the embedded parts and is used in conjunction with the upper connection assembly.

[0057] The upper connection assembly is arranged on the upper side of the support base plate 13, and includes a protective shell 1, a spring element 4, a support bolt ball 5 and an adaptive anti-bend support. The protective shell 1 is dome-shaped and is connected to the support base plate 13 through a high-strength connector 10. The support bolt ball 5 is installed in the protective shell 1 through an adaptive anti-bend support 7, and is used in conjunction with the grid rod 8 arranged on the lower side of the upper grid, and cooperates with the protective shell 1 to support the grid rod 8. The spring element 4 is movably mounted on the grid rod 8 in the protective shell 1, and is used to coordinate the deformation of the support node when the grid structure is deformed by external force.

[0058] Preferably, the embedded parts include an embedded steel plate 15 and several anchor rods 16. The anchor rods 16 are welded to the lower side of the embedded steel plate 15, and are embedded and cast in the lower concrete foundation 17 together with the embedded steel plate 15, and play an anchoring and stabilizing role. The support base plate 13 is arranged on the embedded steel plate 15 and is welded to the embedded steel plate 15 through a transition plate 14. The embedded steel plate 15 is also provided with several connection holes for use with the high-strength connector 10.

[0059] Preferably, in order to facilitate the detachable installation of the truss rod 8 on the upper side of the support bolt ball 5 during use, a sleeve 18 is also welded on the support bolt ball 5. The sleeve 18 is used in conjunction with the truss rod 8 to fix the truss rod 8. That is, when in use, the truss rod 8 is movably inserted into the sleeve 18, and the sleeve 18 is used to fix the truss rod 8.

[0060] Preferably, in order to improve the bearing capacity of the protective shell 1, stiffening ribs 2 are welded on the four sides of the protective shell 1, and a circular hole and a grid rod 8 are arranged on the top of the protective shell. At the same time, in order to facilitate insertion, the diameter of the circular hole is designed to be 1-2 mm larger than the diameter of the grid rod 8.

[0061] Preferably, a node plate 6 is provided on both the support base plate 13 and the support bolt ball 5, and the node plate 6 is used in conjunction with the adaptive anti-bend support 7, that is, when in use, the support bolt ball 5 is installed on the upper side of the support base plate 13 through the connection between the node plate 6 and the adaptive anti-bend support 7.

[0062] Preferably, in order to facilitate the measurement of the deformation of the truss rod 8 when subjected to external force, a vibrating wire strain gauge 9 is also installed on the truss rod 8. The vibrating wire strain gauge 9 is fixed to the truss rod 8 by gluing, and after the vibrating wire strain gauge 9 is installed as a whole, an iron box is arranged outside for protection.

[0063] Preferably, in order to prevent aging and protect the structure inside the protective shell 1, a rubber layer 3 is bonded to the inner side of the protective shell 1 through an adhesive to play a shock-absorbing and buffering role, and a circular through hole is cut at the bottom of the rubber layer 3 to facilitate the connection of the node plate 6 on the support base plate 13, and phenolic resin is applied around the rubber layer 3 to prevent aging.

[0064] Preferably, in order to effectively connect the support base plate 13 with the protective shell 1, a nut 11 and a gasket 12 are also provided on the high-strength connector 10, and the nut 11 and gasket 12 are used in conjunction with the high-strength connector 10, wherein the gasket 12 is arranged on the inner side of the nut 11; and an anti-corrosion material coating is also attached to the exposed outer protective shell 1, the support base plate 13, the high-strength connector 10, the nut 11, and the gasket 12.

[0065] Preferably, the high-strength connecting member 10 is a high-strength screw.

[0066] The use process and principle of the replaceable deformable grid support described in this embodiment include:

[0067] Before use, first, the several anchor rods 16 are welded to the lower side of the embedded steel plate 15, and the embedded steel plate 15 and the anchor rods 16 are tied to the lower concrete foundation 17 for pouring; after the pouring is completed, the support base plate 13 is welded to the embedded steel plate 15 through the transition plate 14; then the bottom rubber layer 3 is laid, and the support bolt ball 5 is installed on the upper side of the support base plate 13 through the adaptive anti-bend support 7; then the protective shell 1 and the spring element 4 are sleeved on the grid rod 8, and the grid rod 8 is connected to the sleeve 18; finally, the protective shell 1 is pressed down, and the protective shell 1 is connected to the support base plate 13 using the high-strength connector 10, nut 11 and gasket 12 to complete the installation of the adaptive deformable grid support;

[0068] During use: when the lower concrete foundation 17 or the upper grid moves due to the action of external force, the spring element 4 is squeezed, and the spring element 4 is used to restore the deformation to perform buffering and protect the device; at the same time, during use, the support bolt ball 5 of the adaptive deformable grid support can be replaced and connected to the support base plate 13 through the adaptive anti-buckling support 7, which can prevent the buckling of the upper rod, ensure that the structure is basically in an elastic working state, and provide shock absorption and energy dissipation when an earthquake occurs.

[0069] Embodiment 2: Different from the above embodiment 1, in order to facilitate the installation and fixation of the support bolt ball 5, the adaptive anti-bend support member 7 is designed to include a cylinder 19, a piston rod 20, a latch and a first return spring 26, wherein

[0070] The cylinder body 19 is a sealed cylinder with telescopic holes at both ends. A limiting ring 22 and a piston 24 are symmetrically arranged in the cylinder body 19 for use in conjunction with each other. The piston 24 is arranged outside the limiting ring 22.

[0071] A balancing chamber 49 and two symmetrically arranged telescopic chambers 23 are formed in the cylinder body 19, and an adaptive pressure balancing mechanism is also provided between the balancing chamber 49 and the telescopic chamber 23;

[0072] The first return spring 26 is disposed in the balance chamber 49 and is fixedly connected to the two symmetrically disposed pistons 24 to reset the pistons 24 when in use;

[0073] The piston rod 20 is movably mounted in the telescopic grooves on the two end plates of the cylinder body 19 through the first sealing member 25, and the inner end of the piston rod 20 is connected to the piston 24, and the outer end is provided with a connecting splint 21, and the connecting splint 21 is used in conjunction with the node plate 6. When in use, the connecting splint 21 is connected to the node plate 6 by a pin to realize the installation of the adaptive anti-bend support 7 between the support bolt ball 5 and the support base plate 13; that is, when in use, when the truss rod 8 or the lower concrete foundation 17 is subjected to a large earthquake and extreme accidental loads, the external force is attenuated by pulling the piston rod 20 to achieve the effect of shock absorption protection.

[0074] Preferably, the cylinder body 19 is also symmetrically provided with a first air pipe 27 and a second air pipe 28, wherein the first air pipe 27 is connected to the telescopic chamber 23, and the second air pipe 28 is connected to the balance chamber 49, and the second air pipe 28 is a three-way air pipe, and the adaptive pressure balancing mechanism is arranged between the first air pipe 27 and the second air pipe 28, connecting the telescopic chamber 23 with the balance chamber 49, so that the airflow between the telescopic chamber 23 and the balance chamber 49 can circulate with each other, so as to achieve pressure balance in the cylinder body 19 under different tension states.

[0075] Preferably, the adaptive pressure balancing mechanism includes a flow guide housing 29, a first sealing member 30 and a flow sealing needle 37 arranged in the flow guide housing 29, wherein

[0076] The guide housing 29 is installed between the first air pipe 27 and the second air pipe 28. A first air flow channel 31 and a second air flow channel 32 are provided in the guide housing 29. The air inlet end of the first air flow channel 31 is provided at an end close to the first air pipe 27 and is used in conjunction with a first sealing member 30. When in use, the opening and closing of the air inlet end of the first air flow channel 31 is controlled by the first sealing member 30. The air inlet end of the second air flow channel 32 is provided at an end close to the second air pipe 28. A flow blocking diaphragm 33 and a third air pipe 34 are provided on the second air flow channel 32. The end of the third air pipe 34 is connected to the sealing housing 36.

[0077] The first sealing member 30 is movably mounted in the guide housing 29 via a second return spring 35 and cooperates with the air inlet end of the first air flow channel 31 to block the first air flow channel 31;

[0078] The sealing needle 37 is movably installed in the sealing housing 36 and is used in conjunction with the blocking diaphragm 33 to control the opening and closing of the second air flow channel 32 .

[0079] Preferably, in order to allow the high-pressure gas in the telescopic chamber 23 to be introduced into the sealed housing 36 before the sealing needle 37 is used to cut off the second air flow channel 32, the third air pipe 34 is designed to be arranged at one end close to the second air pipe 28 and connected to the sealed housing 36; the tail end of the sealing needle 37 is movably installed in the sealed housing 36 through the second sealing member 38, and a first magnet 39 is embedded in the tail of the second sealing member 38, the first magnet 39 is used in conjunction with the second magnet 40 arranged in the sealed housing 36, and the first magnet 39 and the second magnet 40 are magnets of the same name; in use, when the high-pressure gas in the telescopic chamber 23 is introduced into the sealed housing 36, the lower part of the second sealing member 38 is squeezed, so that the second sealing member 38 moves in the direction close to the second magnet 40, thereby pulling the front end of the sealing needle 37 out of the flow-blocking diaphragm 33, so that the second air flow channel 32 is open, and the high-pressure gas is circulated from the telescopic chamber 23 to the balancing chamber 49.

[0080] Preferably, in order to cooperate with the flow-blocking diaphragm 33 to control the second air flow channel 32, the front end needle of the flow-blocking needle 37 is designed to pass through the sealing shell 36 and the side wall of the second air flow channel 32 in sequence, and a beveled surface is provided at the front end of the flow-blocking needle 37 to cooperate with the flow-blocking diaphragm 33. The flow-blocking diaphragms 33 are symmetrical and staggered with each other so that the beveled surfaces can be inserted to control the airflow path in the second air flow channel 32.

[0081] Preferably, in order to facilitate the adjustment of the relative distance between the first magnet 39 and the second magnet 40 as needed during use, thereby adjusting the yield pressure of the second seal 38, the second magnet 40 is designed to be detachably mounted in the sealing housing 36 through an adjustment assembly, the adjustment assembly comprising an outer sleeve 41, a chuck 42 and an adjustment member 43 provided on the outer sleeve 41, wherein

[0082] The outer side of the outer sleeve 41 is provided with an external thread, which cooperates with the internal thread provided on the top plate of the sealing housing 36. When in use, the outer sleeve 41 is screwed and installed on the sealing housing 36 by using the cooperation of the external thread and the internal thread.

[0083] The chuck 42 is rotatably mounted on the lower end of the outer sleeve 41 via a pin 47 , and the second magnet 40 is mounted between the two symmetrically arranged chucks 42 ;

[0084] The adjusting member 43 is mounted on the outer sleeve 41 through an adjusting nut 45, and a diagonal support plate 46 is integrally formed at the lower end of the adjusting member 43. The diagonal support plate 46 is used in conjunction with the inclined plate on the inner side of the chuck 42. When in use, the relative length of the adjusting member 43 in the outer sleeve 41 is adjusted by adjusting the nut 45, and then the chuck 42 is rotated by the diagonal support plate 46 to clamp the second magnet 40. At the same time, when the adjusting nut 45 is rotated in the opposite direction, the second magnet 40 with different magnetic force can be replaced.

[0085] Preferably, a third limit spring 44 is sleeved on the inner rod of the adjusting member 43 for resetting the adjusting member 43 during adjustment.

[0086] Preferably, an inner slot 48 is provided on the inner side surface of the clamp 42 , and the inner slot 48 cooperates with the second magnet 40 to fix the second magnet 40 .

[0087] The use process and principle of the adaptive anti-bend support member 7 in this embodiment include:

[0088] When the piston rod 20 at either end or both ends of the cylinder body 19 is pulled outward by external force, the gas density and pressure in the telescopic chamber 23 increase. At this time, the high-pressure air flows into the guide housing 29 through the first air pipe 27, squeezing the first seal 30, so that the first seal 30 compresses the second return spring 35 to move backward, opening the inlet end of the first air flow channel 31, and the high-pressure air flows into the second air pipe 28 through the first air flow channel 31. The high-pressure air flows into the second air pipe 28 and flows in two ways. One way directly enters the balance chamber 49, and the other way flows into the second air flow channel 32 of another adaptive pressure balancing mechanism, first enters the sealing housing 36 to overcome the repulsive force between the first magnet 39 and the second magnet 40, causing the second seal 38 to move upward, and the front end of the sealing needle 37 is closed. The end is pulled out from the flow-blocking diaphragm 33, so that the second air flow channel 32 is open, and the high-pressure gas enters the other telescopic chamber 23, so that the air pressure in the two telescopic chambers 23 is equal to the air pressure in the balance chamber 49. At this time, the air pressure in the cylinder 19 reaches a new dynamic balance, which attenuates the external impact force. At the same time, in the process of balancing the air pressure in the telescopic chamber 23 and the balance chamber 49, it is finally reflected as the extension or compression of the first return spring 26; and when the external force is lost or reduced, the first return spring 26 generates a new return force, and then adjusts the telescopic chamber 23 and the balance chamber 49 to balance with a new equilibrium pressure state again. This cycle repeats itself, and the external force is continuously attenuated, and finally the effect of the external force is completely absorbed, completing the buffering and shock absorption function, and protecting the truss rods 8 and the lower concrete foundation 17.

[0089] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A grid support suitable for a large-span grid structure system, characterized by: Including lower embedded components, upper connection components and high-strength connectors, The lower embedded assembly includes a support base plate, an embedded steel plate and a plurality of anchor rods. The anchor rods are arranged on the lower side of the embedded steel plate and are embedded in the lower concrete foundation together with the embedded steel plate. The support base plate is arranged on the embedded steel plate and is connected to the embedded steel plate through a transition plate. The upper connection assembly is arranged on the upper side of the support base plate, and includes a protective shell, a spring element, a support bolt ball and an adaptive anti-buckling support. The protective shell is dome-shaped and is connected to the support base plate through a high-strength connector. The support bolt ball is installed in the protective shell through the adaptive anti-buckling support and is used in conjunction with the grid rods arranged on the lower side of the upper grid. The grid rods are used in conjunction with the protective shell. The spring element is arranged on the grid rods in the protective shell and is used in conjunction with the protective shell. The adaptive anti-bend support comprises a cylinder, a piston rod, a latch and a first return spring. The cylinder body is a sealed cylinder, and a limiting ring and a piston are symmetrically arranged in the cylinder body for use in conjunction with each other, and the piston is arranged outside the limiting ring. A mutually sealed balancing chamber and two telescopic chambers symmetrically arranged on both sides of the balancing chamber are formed in the cylinder body, and an adaptive pressure balancing mechanism is also provided between the balancing chamber and the telescopic chamber. The first return spring is arranged in the balance chamber and is connected to two symmetrically arranged pistons; The piston rod is movably mounted on the cylinder body through a first seal, and the inner end of the piston rod is connected to the piston, and the outer end is provided with a connecting splint, and the connecting splint is used in conjunction with a node plate provided on the support base plate and the support bolt ball; The latch is used in conjunction with the connecting splint and the gusset plate; The self-adaptive pressure balancing mechanism includes a flow guiding housing, and a first sealing member and a flow sealing needle arranged in the flow guiding housing.

2. The grid support suitable for a large-span grid structure system according to claim 1, characterized in that: The outer side of the protective shell is symmetrically provided with stiffening ribs, and the inner side is provided with a rubber layer; and a circular hole is also opened on the top of the protective shell, and the circular hole is used in conjunction with the grid rod; The support bolt ball is also provided with a sleeve, which is used in conjunction with the grid rod.

3. The grid support suitable for a large-span grid structure system according to claim 2, characterized in that: The cylinder body is also symmetrically provided with a first air pipe and a second air pipe, the first air pipe is connected to the telescopic chamber, the second air pipe is connected to the balance chamber, and the second air pipe is a three-way air pipe. The adaptive pressure balancing mechanism is arranged between the first air pipe and the second air pipe.

4. The grid support suitable for a large-span grid structure system according to claim 3, characterized in that: The guide housing is arranged between the first air pipe and the second air pipe, and a first air flow channel and a second air flow channel are arranged in the guide housing. The air inlet end of the first air flow channel is arranged at an end close to the first air pipe and is used in conjunction with the first sealing member; the air inlet end of the second air flow channel is arranged at an end close to the second air pipe, and a flow blocking diaphragm and a third air pipe are arranged on the second air flow channel, and the end of the third air pipe is connected to the sealing housing; The first sealing member is arranged in the guide housing via a second return spring and is used in conjunction with the air inlet end of the first air flow channel; The flow-blocking needle is arranged in the sealing housing and is used in conjunction with the flow-blocking diaphragm.

5. The grid support suitable for a large-span grid structure system according to claim 4, characterized in that: The front end needle of the sealing needle passes through the sealing shell and the side wall of the second air flow channel in sequence, and an oblique section is provided at the front end of the sealing needle for use in conjunction with the flow-blocking diaphragm. The flow-blocking diaphragms are symmetrically and staggered with each other, and the staggered gap of the flow-blocking diaphragm is used in conjunction with the oblique section of the front end of the sealing needle.

6. The grid support suitable for a large-span grid structure system according to claim 5, characterized in that: The third air pipe is arranged at one end close to the second air pipe and is connected to the sealed shell; the tail end of the sealing needle is connected to the second sealing member movably arranged in the sealed shell, and a first magnet is arranged at the tail of the second sealing member, and the first magnet is used in conjunction with the second magnet arranged in the sealed shell.

7. The grid support suitable for a large-span grid structure system according to claim 6, characterized in that: The second magnet is arranged in the sealed housing through an adjusting assembly, and the adjusting assembly includes an outer sleeve, a chuck and an adjusting member arranged on the outer sleeve. The outer sleeve is a threaded piece, and an external thread is provided on the outside of the outer sleeve to cooperate with the internal thread provided on the top plate of the sealing shell; The chuck is rotatably mounted on the lower end of the outer sleeve via a pin and is used in conjunction with the second magnet; The adjusting member is movably arranged on the outer sleeve through an adjusting nut, and a diagonal support plate is integrally formed at the lower end of the adjusting member. The diagonal support plate is used in conjunction with the chuck, and a third limit spring is also sleeved on the inner rod of the adjusting member.

8. The grid support suitable for a large-span grid structure system according to claim 7, characterized in that: An inner slot is provided on the inner side surface of the chuck, and the inner slot is used in conjunction with the second magnet.

9. A construction method for a grid support suitable for a large-span grid structure system according to claim 1, characterized in that: include Step 1. Before use, weld the anchor rods to the lower side of the embedded steel plate, and tie the embedded steel plate and anchor rods into the lower concrete foundation for pouring; Step 2. After pouring is completed, weld the support base plate to the embedded steel plate through the transition plate; Step 3. Then, lay the bottom rubber layer and install the support bolt ball on the upper side of the support base plate through the adaptive anti-bend support. Then, put the protective shell and spring element on the grid rods and connect the grid rods to the sleeves. Step 4. Finally, press down the protective shell and use high-strength connectors to connect the protective shell to the support base plate to complete the installation of the adaptive deformable grid support.

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