Slidable beam string structure roof

Abstract

The invention relates to the technical field of building design, in particular to a slidable beam string structure roof which comprises a beam string structure, a membrane material, guide rails and tie bars. The multiple beam string structures are arranged side by side, and every two adjacent beam string structures are connected through a tie bar. The tie bar is of a telescopic structure, and when every two adjacent beam string structures get close to each other or get away from each other (namely, when the roof is opened or closed), the tie bar adjusts the length through the telescopic structure and keeps the two adjacent beam string structures connected through the tie bar; the membrane material is arranged above the beam string structure and covers all the beam string structure; the two ends of each beam string structure are arranged on a building beam body through guide rails, and when two adjacent beam string structures move relatively, the beam string structures are guided and limited by the guide rails. According to the technical scheme, innovative elements such as sliding and folding are integrated on the basis that the advantages of a traditional beam string structure are kept, and the problems existing in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of building design, in particular to a slidable beam-string roof. Background Art

[0002] With the diversification and complexity of modern architectural design, the design of the U-shaped atrium of the building has improved the beauty and functionality of the building, but it also brings the problems of rainwater backflow and strong sunlight. Due to its special structural form, the atrium of the U-shaped building is prone to water accumulation in rainy weather. If the drainage system is imperfect or the design is unreasonable, it is very easy to cause rainwater backflow. This not only affects the normal use of the building, but also may cause damage to the building structure. The rooms on the north side of the atrium often have the problem of strong sunlight due to the influence of the sunlight angle and duration. This not only affects the comfort of the indoor environment, but also may cause damage to furniture and decoration materials. Summary of the invention

[0003] The object of the present invention is to provide a slidable beam-string roof to solve at least one technical problem existing in the prior art.

[0004] In order to solve the above technical problems, the present invention provides a slidable beam string roof, comprising a beam string, a membrane material, a guide rail and a tie rod; A plurality of beam string beams are arranged side by side, and two adjacent beam string beams are connected by tie rods; The tie rod is a telescopic structure. When two adjacent beam string beams are moved closer or farther away from each other (i.e. when the roof is opened or closed), the tie rod adjusts its length through the telescopic structure and keeps the two adjacent beam string beams connected through the tie rod. The membrane material is arranged above the beam string and covers all the beam string; Both ends of the beam string are arranged on the building beam body through guide rails. When relative movement occurs between two adjacent beam strings, the beam string is guided and limited by the guide rails.

[0005] Furthermore, the building beam body is provided with an embedded plate; The guide rail comprises an upper slide rail and a lower slide rail; The lower slide rail is fixedly connected to the embedded plate; The upper slide rail is fixedly connected to the beam string.

[0006] Furthermore, it also includes a driving device, which is arranged on both sides of the beam-string and is used to move the beam-string.

[0007] Furthermore, the tie rod is a multi-stage telescopic structure, and two adjacent telescopic structures include an outer tube, an inner tube, an elastic component, a steel pressure plate and a tongue; The inner tube is sleeved in the outer tube; The elastic component is arranged in the inner tube, and the tongue pieces are arranged at both ends of the elastic component through the steel pressing plate; An outward extension opening is provided on the inner tube at a position corresponding to the tongue piece; Before the tie rod contracts, the tongue piece is supported by the elastic component and extends out of the extension opening; When the tie rod contracts, the end of the outer tube abuts against the tongue piece and presses the tongue piece into the outer extension opening, so that the inner tube smoothly enters the outer tube; When the tie rod is extended, after the outer tube passes through the outward-extending opening, the tongue piece is no longer restricted by the outer tube, and thus is pushed out of the outward-extending opening under the support of the elastic component.

[0008] Furthermore, the multi-stage telescopic structure of the tie rod is a structure with a thin middle and thick ends, that is, the tube bodies at the two ends are the outermost tube bodies, and are gradually wrapped around the middle tube body.

[0009] Further, it includes folding the spine; The folded spine is arranged between two adjacent beam string beams, and the membrane material is connected to the folded spine; The folding spine is a folding mechanism. When the roof is closed, the folding spine is folded and drives the membrane material to fold. When the roof is opened, the folding spine is opened and drives the membrane material to be laid flat.

[0010] Further, the folded spine includes a folded node, a first spine and a second spine; The folding node comprises a first toggle joint disc, a second toggle joint disc and a pin; The first toggle joint disc and the second toggle joint disc are connected via a pin shaft; The first vertebra and the second vertebra are connected to the first elbow disc and the second elbow disc respectively; One end of the first spine and the second spine away from the folding node is hinged to the corresponding tension string beam.

[0011] Further, the membrane material is connected to the folded spine by means of a clamp and a fastener; The clamp comprises a main body, a rib plate, a rubber layer and a clamp plate; The lower end of the main body is fixedly arranged on the folded spine; The top of the main body is provided with a rib plate; The membrane material is provided with rubber layers on both the upper and lower surfaces; A side of the rubber layer below the membrane material away from the membrane material abuts against the rib plate; The rubber layer above the membrane material is in contact with the clamping plate on one side away from the membrane material; The fastener fastens the clamp, the upper end of the fastener fastens the clamping plate downward, and the lower end of the fastener fastens the rib plate upward, thereby forming a stable clamping for the membrane material.

[0012] Further, it includes a brace and a cable; The upper end of the brace is connected to the string beam, and the lower end is provided with a hoop; The two ends of the cable are fixedly connected to the ends of the tension beam, and the middle passes through the hoop.

[0013] Further, the brace is connected to the beam string via a connection node; The connection node includes an ear plate, a connection tube and a pin; The ear plate is fixedly arranged at one end of the support rod away from the hoop, and the ear plate is provided with an axial hole for pin connection; The connecting tube is fixedly arranged on the lower end surface of the beam string; The connecting tube is provided with a slot corresponding to the position of the ear plate; After the ear plate is inserted into the slot, it is connected to the connecting tube via a pin.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects: (1) By adopting a retractable tie rod structure and a rail-guided beam string design, the roof can be easily opened and closed to adapt to different usage requirements and environmental changes. This flexibility not only improves the functionality of the roof, but also enhances its adaptability to various application scenarios.

[0015] (2) The introduction of guide rails and drive devices ensures the stability and accuracy of the beam string during the sliding process. At the same time, the tie rod design of the multi-stage telescopic structure enables the roof to maintain structural integrity and continuity during the adjustment process, further improving the safety and reliability of the overall structure.

[0016] (3) The ingenious design of the folding spine and membrane material allows the roof to be folded compactly when closed, and when opened, the membrane material can be spread out flat to form an open indoor space.

[0017] (4) While maintaining the advantages of the traditional beam-string structure, this technical solution incorporates innovative elements such as sliding and folding, making the roof not only practical but also highly innovative, thus solving the problems existing in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A front view of a beam string of a slidable beam string roof disclosed in the present application; Figure 2 for Figure 1 A partial enlarged view of the middle A; Figure 3 A top view of the slidable beam string roof disclosed in the present application in an open state; Figure 4 A top view of the slidable beam string roof disclosed in the present application in a contracted state; Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of section 1-1; Figure 6 for Figure 5 A partial enlarged view of point B in the middle; Figure 7 for Figure 5 A partial enlarged view of point C in the middle; Figure 8 for Figure 4 Schematic diagram of the cross-sectional structure of section 2-2; Fig. 9 for Figure 8 A partial enlarged view of point D in the middle; Fig.10 for Figure 8 A partial enlarged view of point E in the middle; Fig.11 It is a schematic diagram of the principle structure of the tie rod from the main viewing angle; Fig.12 It is a schematic diagram of the structure away from the tie rod from the top view; Fig.13 is a disassembled view of the first toggle joint disc and the second toggle joint disc at the folding node; Fig.14 It is a schematic diagram of the structure from a top-down perspective at the folding node; Fig.15 Schematic diagram of the structure of the clamp and fasteners fixing the membrane material.

[0020] Reference numerals: 1- string beam; 2- membrane material; 3- guide rail; 4- tie rod; 5- embedded plate; 6- upper slide rail; 7- lower slide rail; 8- driving device; 9- outer tube; 10- inner tube; 11- elastic component; 12- steel pressure plate; 13- tongue; 14- folding spine; 15- folding node; 16- first spine; 17- second spine; 18- first elbow joint disc; 19- second elbow joint disc; 20- pin shaft; 21- clamp; 22- fastener; 23- main body; 24- rib plate; 25- rubber layer; 26- splint; 27- strut; 28- cable; 29- connection node; 30- ear plate; 31- connection tube; 32- building beam body; 33- hoop. DETAILED DESCRIPTION

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

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] It should also be noted that the following specific embodiments or specific implementations are a series of optimized settings listed in the present invention to further explain the specific content of the invention, and these settings can be used in combination or in association with each other.

[0025] The present invention is further explained below in conjunction with specific implementation modes.

[0026] like Figure 1 ,3 As shown, a slidable beam string roof provided in this embodiment includes a beam string 1, a membrane material 2, a guide rail 3 and a tie rod 4; A plurality of the beam string beams 1 are arranged side by side, and two adjacent beam string beams 1 are connected by a tie rod 4; The tie rod 4 is a telescopic structure. When two adjacent beam string beams 1 are moved closer or farther away from each other (i.e. when the roof is opened or closed), the tie rod 4 adjusts its length through the telescopic structure and keeps the two adjacent beam string beams 1 connected through the tie rod 4. The membrane material 2 is arranged above the beam string 1 and covers all the beam string 1; Both ends of the beam string 1 are arranged on the building beam body 32 via guide rails 3 . When two adjacent beam string 1 move relative to each other, the beam string 1 is guided and limited by the guide rails 3 .

[0027] like Figure 2 As shown, as a further embodiment of the present application, an embedded plate 5 is provided on the building beam body 32; The guide rail 3 includes an upper slide rail 6 and a lower slide rail 7; The lower slide rail 7 is fixedly connected to the embedded plate 5; The upper slide rail 6 is fixedly connected to the beam string 1 .

[0028] like Figure 2 As shown, as a further embodiment of the present application, it further includes a driving device 8, and the driving device 8 is arranged on both sides of the beam-string 1 to move the beam-string 1.

[0029] The slidable beam string roof disclosed in the present application can be opened or closed when in operation. When the roof is opened, it can shield the atrium of the building, especially in rainy weather conditions, the membrane material 2 of the roof can play a role in sheltering from rain and water (such as Figure 3 In normal sunny days, the roof can be closed to the north to provide shade to the north (as shown in Figure 2). Figure 4 Similarly, the roof can also be installed and opened and closed according to actual conditions.

[0030] As a preferred embodiment of the present application, the membrane material 2 is preferably a PVDF membrane; the white PVDF membrane material 2 has a small thickness, light weight, high tensile strength, good self-cleaning and corrosion resistance, and a light transmittance of up to 15%.

[0031] The beam string 1 of the present application is driven by the driving device 8 to perform guided movement along the slide rail. The driving device 8 can adopt the driving method and equipment of the prior art, and the present application does not further limit it here.

[0032] like Fig.11 , 12 As shown, as a further embodiment of the present application, the tie rod 4 is a multi-stage telescopic structure, and two adjacent telescopic structures include an outer tube 9, an inner tube 10, an elastic component 11, a steel pressure plate 12 and a tongue 13; The inner tube 10 is sleeved in the outer tube 9; The elastic component 11 is arranged in the inner tube 10, and the tongue pieces 13 are arranged at both ends of the elastic component 11 through the steel pressing plate 12; An outwardly extending opening is provided on the inner tube 10 at a position corresponding to the tongue piece 13; Before the tie rod 4 contracts, the tongue piece 13 is supported by the elastic component 11 and extends out of the extension opening; When the tie rod 4 contracts, the end of the outer tube 9 abuts against the tongue 13 and presses the tongue 13 into the outer extension opening, so that the inner tube 10 smoothly enters the outer tube 9; When the tie rod 4 is extended, after the outer tube 9 passes through the externally extending opening, the tongue piece 13 is no longer restricted by the outer tube 9 , and is pushed out of the externally extending opening under the support of the elastic component 11 .

[0033] like Figure 5 , 6 As shown, as a further embodiment of the present application, the multi-stage telescopic structure of the tie rod 4 is a structure with a thin middle and thick ends, that is, the tube bodies at the two ends are the outermost tube bodies, and are gradually wrapped around the middle tube body.

[0034] like Figure 6 and Fig.10 As shown, the tie rod 4 of the present application is a four-stage tie rod 4. Figure 6 As shown, the first level is connected to the string beam 1, and the second level, third level and fourth level are connected from both sides to the middle. Figure 6 The middle tie rod 4 is in the maximum elongation state. When it contracts, it contracts step by step. The connection structure between two adjacent levels is as follows: Fig.11 , 12 As shown, the final shrinkage is Fig.10 Status shown.

[0035] When the beam string 1 is pulled forward by the driving device 8, when the tongue piece 13 of the secondary tie rod 4 protrudes out of the primary tie rod 4, the spring pops out the tongue piece 13 under the action of the restoring force and is stuck at the primary tie rod 4. Similarly, the third and fourth tie rods 4 are respectively drawn out from the second and third tie rods 4 to the extent that the steel tie rod 4 is extended. When the beam string 1 moves backward under the reverse action of the driving device 8, the retractable tongue piece 13 of the secondary tie rod 4 compresses the spring, so that the tongue piece 13 retreats into the primary tie rod 4. Similarly, the third and fourth tie rods 4 retreat into the second and third tie rods 4, respectively.

[0036] like Figure 8 , 9 As shown, as a further embodiment of the present application, it also includes a folded spine 14; The folded spine 14 is disposed between two adjacent beam string beams 1, and the membrane material 2 is connected to the folded spine 14; The folding spine 14 is a folding mechanism. When the roof is closed, the folding spine 14 is folded and drives the membrane material 2 to fold. When the roof is opened, the folding spine 14 is opened and drives the membrane material 2 to be laid flat.

[0037] like Fig.13 , 14 As shown, as a further embodiment of the present application, the folded spine 14 includes a folded node 15, a first spine 16 and a second spine 17; The folding node 15 includes a first toggle joint disc 18, a second toggle joint disc 19 and a pin 20; The first toggle joint disc 18 and the second toggle joint disc 19 are connected via a pin 20; The first vertebra 16 and the second vertebra 17 are connected to the first toggle disc 18 and the second toggle disc 19 respectively; One end of the first vertebra 16 and the second vertebra 17 away from the folding node 15 is hinged to the corresponding tension string beam 1 .

[0038] When a slidable tension-string roof disclosed in the present application is in operation, in order to enable the membrane material 2 to open and close smoothly, the membrane material 2 is set on the folding spine 14. When the folding spine 14 is deformed, the toggle disc and the second toggle disc 19 rotate through the pin shaft 20, thereby driving the first spine 16 and the second spine 17 to rotate. Fig.13 What is shown are the movement trajectories of the folding nodes 15 after they are disassembled.

[0039] like Fig.15 As shown, as a further embodiment of the present application, the membrane material 2 is connected to the folded spine 14 through a clamp 21 and a fastener 22; The clamp 21 includes a main body 23, a rib 24, a rubber layer 25, and a clamp 26; The lower end of the main body 23 is fixedly disposed on the folded spine 14; The top of the main body 23 is provided with a rib plate 24; The membrane material 2 is provided with a rubber layer 25 on both the upper and lower surfaces; The rubber layer 25 below the membrane 2 is in contact with the rib 24 on one side away from the membrane 2; The rubber layer 25 above the membrane material 2 is in contact with the clamping plate 26 on one side away from the membrane material 2; The fastener 22 fastens the clamp 21 , the upper end of the fastener 22 fastens the clamp plate 26 downward, and the lower end of the fastener 22 fastens the rib plate 24 upward, thereby forming a stable clamping for the membrane material 2 .

[0040] In the prior art, membrane structures are generally connected to the roof in a cable-supported manner. However, since the present application adopts a folding roof, if a cable-supported structure is adopted, the cables will become loose when folded. In the present application, a rigid folding spine 14 and a clamp 21 are used to fix the membrane material 2, and the membrane material 2 is clamped by a rubber layer 25, which not only protects the membrane material 2 but also fixes the membrane material 2. The plywood 26 is covered on the surface, which is both beautiful and prevents rubber aging. The rubber of the rubber layer 25 is preferably chloroprene rubber, and the plywood 26 is preferably made of aluminum alloy.

[0041] like Figure 1-2 As shown, as a further embodiment of the present application, it also includes a support rod 27 and a cable 28; The upper end of the support rod 27 is connected to the tension beam 1, and the lower end is provided with a hoop 33; Both ends of the cable 28 are fixedly connected to the ends of the tension beam 1 , and the middle passes through the hoop 33 .

[0042] like Figure 1-2 As shown, as a further embodiment of the present application, the brace 27 is connected to the beam string 1 via a connection node 29; The connection node 29 includes an ear plate 30, a connection tube 31 and a pin 20; The ear plate 30 is fixedly arranged at one end of the support rod 27 away from the hoop 33, and an axial hole for connecting the pin shaft 20 is arranged on the ear plate 30; The connecting tube 31 is fixedly arranged on the lower end surface of the string beam 1; The connecting tube 31 is provided with a slot corresponding to the position of the ear plate 30; After the ear plate 30 is inserted into the slot, it is connected to the connecting tube 31 through the pin 20 .

[0043] The slidable beam string roof disclosed in the present application can be adjusted according to weather conditions during actual use. Especially for circular buildings, water is easily accumulated in the atrium during rain. Therefore, when it rains, the roof can be unfolded and covered on the atrium to avoid serious water accumulation in the atrium. When the rain stops and the sky clears, the driving device 8 is controlled by the control system (such as Figure 4 As shown in FIG. 1 ), the beam string 1 starts to move, and the tie rod 4 between two adjacent beam string 1 starts to contract. Meanwhile, the folding spine 14 starts to fold, and finally the folding spine 14 starts to fold. Figure 3 and Figure 5 The expanded state shown collapses to Figure 4 and Figure 8 The roof of the present application is preferably retracted to the north. In reality, the rooms on the north side of the circular building usually encounter too much sunlight every day. Therefore, when the roof is retracted to the north side, it can help to shade the rooms on the north side.

[0044] The tie rod adopts a telescopic structure, and the specific telescopic distance is as follows: Fig.11 As shown, the elastic force of the elastic component 11 (preferably a spring) and the pressure of the outer tube 9 act on the tongue 13, so that the tongue 13 can achieve a temporary blocking effect on the tie rod 4. In addition, since the steel pressure plate 12 is arranged in the inner tube 10, it also plays a limiting role on the tongue 13. When the roof is retracted, each component in the tie rod 4 is wrapped layer by layer, and finally the outermost sleeve covers the remaining sleeves. As the most preferred embodiment, the two outermost sleeves abut when the tie rod is retracted to the minimum state, and the other inner tubes 10 are wrapped inside.

[0045] Different from the telescopic structure of the tie rod 4, the folding spine 14 is a folding structure, and the axis is the folding node 15. When the tension string beams 1 approach each other, the folding spine 14 begins to fold, and synchronously, the membrane material 2 also begins to fold. Compared with the cable-supported structure commonly used in the prior art, the membrane material 2 fixed by the folding spine 14 will not relax.

[0046] In order to fix the membrane material 2 and the folded spine 14 with high strength and without damage, the membrane material 2 is clamped in the up and down directions by a rubber layer 25 made of chloroprene rubber. On the one hand, the PVDF membrane material and chloroprene rubber have good friction performance, so that the membrane material will not move in a large range under the clamping of the rubber layer 25; on the other hand, the rubber layer 25 blocks the membrane material 2 and the metal parts, avoiding damage to the membrane material by the metal parts. The clamping plate 26 is made of aluminum alloy, and the clamping plate 26 is arranged on the rubber layer 25 above the membrane material 2. Since the rubber layer 25 above the membrane material 2 faces outward, the rubber layer 25 is prone to aging and damage due to natural conditions. Therefore, the present application sets a clamping plate 26 made of aluminum alloy above the rubber layer 25, which not only plays a protective role, but also has an aesthetic effect.

[0047] By adopting the above technical solution, the present invention has the following beneficial effects: (1) By adopting a retractable tie rod and a guide rail-guided beam string design, the roof can be easily opened and closed to adapt to different weather and usage requirements. On rainy days, the roof can be opened to shield the building atrium to prevent rainwater from intruding; on sunny days, the roof can be closed to the north to provide sunshade for the north side. This flexibility not only improves the functionality of the roof, but also enhances its adaptability to various application scenarios.

[0048] (2) The introduction of guide rails and drive devices ensures the stability and accuracy of the beam string during the sliding process. The tie rod design of the multi-stage telescopic structure enables the roof to maintain structural integrity and continuity during the adjustment process, further improving the safety and reliability of the overall structure. At the same time, the ingenious design of the folding spine and clamps also enhances the fixing effect of the membrane material and the stability of the overall structure.

[0049] (3) The clever combination of the folding spine and the membrane material allows the roof to be folded compactly when closed, and when opened, the membrane material can be spread out flat to form an open indoor space.

[0050] (4) The selection of PVDF membrane material not only has the advantages of small thickness, light weight, and high tensile strength, but also has good self-cleaning and corrosion resistance, and moderate light transmittance, which not only meets the needs of sunshade and rain shelter, but also ensures sufficient indoor light. At the same time, the clamp design of chloroprene rubber and aluminum alloy materials also further improves the fixing effect of the membrane material and the durability of the overall structure.

[0051] (5) The standardized connection nodes and fixture design make the assembly and disassembly of the roof easier and faster. This not only reduces the installation cost, but also facilitates subsequent maintenance and upkeep. At the same time, the clever coordination of the struts and cables also simplifies the installation process of the roof structure and improves installation efficiency.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slidable beam string roof, characterized in that: Including beam string, membrane material, guide rail and tie rod; A plurality of beam string beams are arranged side by side, and two adjacent beam string beams are connected by tie rods; The tie rod is a telescopic structure. When two adjacent beam string beams are moved closer or farther away from each other (i.e. when the roof is opened or closed), the tie rod adjusts its length through the telescopic structure and keeps the two adjacent beam string beams connected through the tie rod. The membrane material is arranged above the beam string and covers all the beam string; Both ends of the beam string are arranged on the building beam body through guide rails. When relative movement occurs between two adjacent beam strings, the beam string is guided and limited by the guide rails.

2. The slidable beam string roof according to claim 1, characterized in that: The building beam body is provided with an embedded plate; The guide rail comprises an upper slide rail and a lower slide rail; The lower slide rail is fixedly connected to the embedded plate; The upper slide rail is fixedly connected to the beam string.

3. The slidable beam string roof according to claim 1, characterized in that: It also includes a driving device, which is arranged on both sides of the beam string and is used to move the beam string.

4. The slidable beam string roof according to claim 1, characterized in that: The tie rod is a multi-stage telescopic structure, and two adjacent telescopic structures include an outer tube, an inner tube, an elastic component, a steel pressure plate and a tongue; The inner tube is sleeved in the outer tube; The elastic component is arranged in the inner tube, and the tongue pieces are arranged at both ends of the elastic component through the steel pressing plate; An outward extension opening is provided on the inner tube at a position corresponding to the tongue piece; Before the tie rod contracts, the tongue piece is supported by the elastic component and extends out of the extension opening; When the tie rod contracts, the end of the outer tube abuts against the tongue piece and presses the tongue piece into the outer extension opening, so that the inner tube smoothly enters the outer tube; When the tie rod is extended, after the outer tube passes through the outward-extending opening, the tongue piece is no longer restricted by the outer tube, and thus is pushed out of the outward-extending opening under the support of the elastic component.

5. The slidable beam string roof according to claim 4, characterized in that: The multi-stage telescopic structure of the tie rod is a structure with a thin middle and thick ends, that is, the tube bodies at the two ends are the outermost tube bodies, and are wrapped step by step around the middle tube body.

6. The slidable beam string roof according to claim 1, characterized in that: It also includes folding the spine; The folded spine is arranged between two adjacent beam string beams, and the membrane material is connected to the folded spine; The folding spine is a folding mechanism. When the roof is closed, the folding spine is folded and drives the membrane material to fold. When the roof is opened, the folding spine is opened and drives the membrane material to be laid flat.

7. The slidable beam string roof according to claim 6, characterized in that: The folded spine includes a fold node, a first vertebra, and a second vertebra; The folding node comprises a first toggle joint disc, a second toggle joint disc and a pin; The first toggle joint disc and the second toggle joint disc are connected via a pin shaft; The first vertebra and the second vertebra are connected to the first elbow disc and the second elbow disc respectively; One end of the first spine and the second spine away from the folding node is hinged to the corresponding tension string beam.

8. The slidable beam string roof according to claim 6, characterized in that: The membrane material is connected to the folded spine by means of a clamp and fasteners; The clamp comprises a main body, a rib plate, a rubber layer and a clamp plate; The lower end of the main body is fixedly arranged on the folded spine; The top of the main body is provided with a rib plate; The membrane material is provided with rubber layers on both the upper and lower surfaces; A side of the rubber layer below the membrane material away from the membrane material abuts against the rib plate; The rubber layer above the membrane material is in contact with the clamping plate on one side away from the membrane material; The fastener fastens the clamp, the upper end of the fastener fastens the clamping plate downward, and the lower end of the fastener fastens the rib plate upward, thereby forming a stable clamping for the membrane material.

9. The slidable beam string roof according to claim 1, characterized in that: Also included are poles and guy wires; The upper end of the brace is connected to the string beam, and the lower end is provided with a hoop; The two ends of the cable are fixedly connected to the ends of the tension beam, and the middle passes through the hoop.

10. The slidable beam string roof according to claim 9, characterized in that: The brace is connected to the beam string via a connection node; The connection node includes an ear plate, a connection tube and a pin; The ear plate is fixedly arranged at one end of the support rod away from the hoop, and the ear plate is provided with an axial hole for pin connection; The connecting tube is fixedly arranged on the lower end surface of the beam string; The connecting tube is provided with a slot corresponding to the position of the ear plate; After the ear plate is inserted into the slot, it is connected to the connecting tube via a pin.

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