A pipe truss skeleton film transverse tension device

Abstract

The utility model provides a kind of pipe truss skeleton membrane transverse tension device, the device includes tensioning mechanism, guide rail and locking mechanism, wherein tensioning mechanism includes driving assembly and tensioning piece, tensioning piece is oppositely arranged along the tentative tension direction of membrane cloth, can drive tensioning piece to be close to or away from simultaneously by driving assembly;Guide rail is symmetrically set in the bottom of tensioning mechanism, including clamping portion and connecting portion;Locking mechanism includes self-locking assembly and connecting seat, self-locking assembly is set in group, and each group of self-locking assembly can be engaged connection;Self-locking assembly top end is connected to guide rail, and bottom end is slidingly connected to connecting seat.The utility model integrates membrane cloth tensioning and fixing, not only can accurately control the position of guide rail, to control the tensioning degree of membrane cloth, but also can realize automatic locking and fixing when reaching set tension state, reduce the operation difficulty and risk of membrane cloth tensioning, improve tensioning efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of membrane structure technology, and in particular relates to a transverse tensioning device for a tubular truss frame membrane. Background Technology

[0002] A tubular truss membrane structure is an architectural form that uses a tubular truss structure as the main load-bearing system and a flexible membrane material as the covering layer. Due to its lightweight and high flexibility in shaping, it is widely used in stadiums and convention centers, transportation hubs, commercial and cultural facilities, industrial and warehousing facilities, landscaping, and temporary structures. The membrane structure is primarily constructed using a tensioned membrane method, where the membrane fabric is stretched and shaped by moving guide rails. Current technology mainly uses hydraulic tensioning devices to tension the guide rails, requiring manual fixing with clips after tensioning. However, hydraulic tensioning devices apply significant force to the guide rails, making them difficult to control and prone to damaging the membrane fabric or guide rails. Furthermore, using clips for fixing is not only time-consuming, labor-intensive, and dangerous, but traditional clips are also prone to deformation, adversely affecting the stability and safety of the membrane structure. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a transverse tensioning device for a tubular truss frame membrane, which integrates membrane tensioning and fixing into one unit, improving the tensioning accuracy of the membrane, reducing the difficulty and danger of operation, and improving the tensioning efficiency.

[0004] The technical solution adopted in this utility model is: a transverse tensioning device for a tubular truss frame membrane, comprising:

[0005] The tensioning mechanism includes a drive assembly and a tensioning element. The tensioning element is arranged opposite to the membrane fabric along the intended tensioning direction. The drive assembly can drive the tensioning element to move closer or further away synchronously.

[0006] The guide rail is symmetrically arranged at the bottom of the tensioning mechanism and includes a snap-fit ​​part and a connecting part. The snap-fit ​​part is used to snap into the tensioning member, and the connecting part is used to connect to the membrane cloth.

[0007] The locking mechanism includes a self-locking component and a connecting seat. The self-locking components are arranged in groups, and each group of self-locking components can be locked together. The top end of the self-locking component is connected to the guide rail, and the bottom end is slidably connected to the connecting seat. The connecting seat is used to connect the tubular truss.

[0008] Furthermore, the drive assembly includes a drive member, a transmission gear, and a toothed chain. The transmission gear cooperates with the drive member; the toothed chain meshes with the opposite ends of the transmission gear; and the tensioning member is fixed to the toothed chain and moves linearly under the drive of the toothed chain.

[0009] Furthermore, the snap-fit ​​portion is located on the opposite inner side of the connecting portion, and the side of the snap-fit ​​portion facing the connecting portion is a semi-cylindrical arc surface. The bottom end of the tensioning member is provided with an abutment portion that matches the semi-cylindrical arc surface.

[0010] Furthermore, the connecting part is an annular tube groove with an opening, and the fixing rope at one end of the membrane cloth is embedded in the annular tube groove, with the membrane cloth extending outward from the opening.

[0011] Furthermore, the self-locking assembly includes a fixing member, a sliding member, and a locking member. The guide rail and the sliding member are both connected to the fixing member; the sliding member is slidably connected to the connecting seat; one end of the locking member is connected to the sliding member, and the other end extends toward the other guide rail.

[0012] Furthermore, the end of the locking member away from the sliding member is bent toward the sliding member to form a bent portion; the bent portions of each group of locking members are arranged opposite to each other and staggered so that the bent portions can abut against each other, and at least one of the locking members is an elastic member.

[0013] Furthermore, the connecting seat includes a mounting plate with a groove, the groove being arranged parallel to the intended tensioning direction, and the sliding member being slidably disposed in the groove.

[0014] Furthermore, the sliding member includes a sliding rod and a sliding plate; the sliding rod passes through the sliding groove; one end of the sliding plate is connected to the sliding rod, and the other end extends toward another sliding groove; the locking member is disposed on the sliding plate.

[0015] Furthermore, the connecting seat also includes a support plate, which is vertically disposed at the bottom of the mounting plate and connected to the tubular truss.

[0016] The advantages and positive effects of this utility model are:

[0017] (1) By adopting the above technical solution, the membrane tensioning and fixing are integrated into one, which can not only accurately control the position of the guide rail and thus control the tension of the membrane, but also enable it to automatically lock and fix when the set tensioning state is reached, reducing the difficulty and danger of membrane tensioning and improving tensioning efficiency.

[0018] (2) By designing the locking part of the guide rail as a semi-cylindrical arc surface and designing the bottom end of the tensioning part to match the shape of the semi-cylindrical arc surface, the locking part is subjected to more uniform force and is less prone to damage; a stable connection between the guide rail and the tensioning part is achieved to adapt to different guide rail installation postures.

[0019] (3) By designing the self-locking components as fixed parts, sliding parts and locking parts, the position of the guide rail can be flexibly adjusted to meet the tensioning requirements of the membrane fabric, ensuring that the guide rail can be stably fixed after reaching the target position, improving the stability and reliability of the entire device, and ensuring the safety and accuracy of the skeleton membrane during installation and use.

[0020] (4) By setting the structure of the locking parts, the bent parts can accurately abut against each other when they are close together, and can accurately engage in the bending space when the guide rail reaches the set position, thus achieving precise automatic locking. The overall structure is simple, the design is ingenious, and it has good stability and reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the drive component structure of a specific embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the guide rail structure of a specific embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the locking mechanism structure of a specific embodiment of this utility model.

[0025] In the picture:

[0026] 1. Tensioning mechanism; 11. Tensioning element; 111. Abutting part; 12. Transmission gear; 121. Hexagonal hole; 13. Toothed chain; 2. Guide rail; 21. Snap-fit ​​part; 22. Connecting part; 3. Membrane cloth; 31. Fixing rope; 4. Locking mechanism; 41. Self-locking assembly; 411. Fixing element; 412. Sliding element; 4121. Sliding rod; 4122. Sliding plate; 4123. Fastener; 413. Locking element; 4131. Bending part; 42. Connecting seat; 421. Mounting plate; 4211. Slide groove; 422. Support plate; 5. Tubular truss. Detailed Implementation

[0027] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0028] This utility model provides a transverse tensioning device for a tubular truss skeleton membrane, used to tension the skeleton membrane of a tubular truss. By using the transverse tensioning device for a tubular truss skeleton membrane of this application, the tension degree of the skeleton membrane can be controlled more precisely to avoid damage to the skeleton membrane or guide rails. At the same time, the skeleton membrane can be automatically locked and fixed after being tensioned in place. Compared with manually fixing the skeleton membrane with buckles, this reduces the difficulty and danger of operation and improves the tensioning efficiency of the skeleton membrane.

[0029] like Figure 1 As shown in the figure, this utility model embodiment proposes a transverse tensioning device for a tubular truss frame membrane, including a tensioning mechanism 1, a guide rail 2, and a locking mechanism 4. The following is a detailed description of each part:

[0030] The tensioning mechanism 1 includes a drive assembly and a tensioning element 11. The tensioning element 11 is arranged opposite to the membrane fabric 3 along the intended tensioning direction. The drive assembly can drive the tensioning element 11 to move closer or further away synchronously.

[0031] The guide rail 2 is symmetrically arranged at the bottom of the tensioning mechanism 1, and includes a snap-fit ​​part 21 and a connecting part 22. The snap-fit ​​part 21 is used to snap into the tensioning member 11, and the connecting part 22 is used to connect to the membrane cloth 3.

[0032] The locking mechanism 4 includes a self-locking component 41 and a connecting seat 42. The self-locking components 41 are arranged in groups, and each group of self-locking components 41 can be locked together. The top end of the self-locking component 41 is connected to the guide rail 2, and the bottom end is slidably connected to the connecting seat 42. The connecting seat 42 is used to connect the pipe truss 5.

[0033] In this embodiment, the guide rail 2 is used to fix the skeleton membrane and is adapted to the skeleton membrane to be installed; the tensioning mechanism 1 is used to drive the guide rail 2 to move along a set direction, thereby driving the membrane fabric 3 to move; in this embodiment, there are two tensioning members 11 and two guide rails 2, each guide rail 2 is connected to a tensioning member 11 and connected to the membrane fabric 3 of a skeleton membrane. It can be understood that one end of the membrane fabric 3 is fixed to the guide rail 2 and the other end is fixed to another structure. For example, the other end of the membrane fabric 3 has been installed on another truss 5 beforehand, and its position is relatively fixed; the guide rail 2 is connected to the locking mechanism 4 to fix it to the target truss 5, and the position of the target truss 5 is also fixed. By adjusting the position of the guide rail 2 on the target truss 5, i.e. The membrane fabric 3 can be tensioned. The working principle of this application is as follows: two tensioning members 11 are set relative to each other along the direction in which the membrane fabric 3 is to be tensioned. The two tensioning members 11 are controlled to move closer to each other by the drive component, thereby driving the two guide rails 2 to move closer to each other on the connecting seat 42, so as to achieve simultaneous tensioning of the two membrane fabrics 3. The two membrane fabrics 3 have a set tension state. By controlling the position of the two guide rails 2, the membrane fabric 3 can be tensioned to a tension level that matches the set tension state. The self-locking component 41 of the locking mechanism 4 moves closer to each other synchronously as the guide rails 2 move closer to each other during the tensioning process. When the two membrane fabrics 3 reach the set tension state, the two self-locking components 41 can automatically engage and connect, thereby locking and fixing the guide rails 2, so that the membrane fabric 3 is fixed in the tension state. By integrating the tensioning and fixing of the membrane fabric 3 into one unit through the above technical solution, it is possible not only to precisely control the position of the guide rail 2 and thus control the tension of the membrane fabric 3, but also to automatically lock and fix it when the set tensioning state is reached. This reduces the difficulty and danger of tensioning the membrane fabric 3 and improves the tensioning efficiency.

[0034] Furthermore, such as Figure 2 As shown, the drive assembly includes a drive member, a transmission gear 12, and a toothed chain 13. The transmission gear 12 engages with the drive member; the toothed chain 13 meshes with the opposite ends of the transmission gear 12; and the tensioning member 11 is fixed to the toothed chain 13 and moves linearly under the drive of the toothed chain 13. By driving the transmission gear 12 to rotate, the toothed chain 13 meshing with it can move synchronously, thereby causing the two tensioning members 11 to move closer or further apart.

[0035] In a specific technical solution of the above embodiment, the axle of the transmission gear 12 is arranged vertically, so that the transmission gear 12 rotates on a horizontal plane. Each of its opposite sides is provided with a toothed chain 13. The inner sides of the two ends of the toothed chain 13 are respectively provided with mounting shafts, so that the toothed chain 13 forms a long strip-shaped receiving space. The outer side of the toothed chain 13 is provided with protruding teeth that mesh with the transmission gear 12, and the inner side is fixedly connected to the tensioning member 11. By rotating the transmission gear 12, the toothed chain 13 can be driven to move, thereby driving the tensioning member 11 to move within the receiving space. The direction of travel of the toothed chain 13 is the same as the intended tensioning direction of the membrane fabric 3. Since the two toothed chains 13 are arranged opposite to each other at the two ends of the transmission gear 12, the two toothed chains 13 can move synchronously in opposite directions under the drive of the transmission gear 12, thereby realizing the synchronous approach or departure of the tensioning member 11.

[0036] In the above embodiment, the upper surface of the transmission gear 12 is provided with a hexagonal hole 121, and the driving component is an electric wrench. By inserting the electric wrench into the hexagonal hole 121, the transmission gear 12 can be controlled to rotate in the forward or reverse direction, so as to achieve precise control of the rotation angle of the transmission gear 12, and thus control the moving distance of the tensioning component 11.

[0037] Furthermore, in one specific embodiment of this utility model, such as Figure 3 As shown, the guide rail 2 includes a snap-fit ​​part 21 and a connecting part 22. When the two guide rails 2 are arranged opposite each other, the snap-fit ​​part 21 is arranged on the inner side of the connecting part 22, and the connecting part 22 is arranged on the outer side, so that the membrane cloth 3 fixed to the connecting part 22 can extend outward. At the same time, this application proposes a specific structure in which the snap-fit ​​part 21 and the tensioning member 11 can abut and connect: the side of the snap-fit ​​part 21 facing the connecting part 22 is a semi-cylindrical arc surface, and the bottom end of the tensioning member 11 is provided with an abutment part 111 that matches the semi-cylindrical arc surface. In this embodiment, the distance between the guide rails 2 before tensioning is greater than the distance between the guide rails 2 after tensioning. Therefore, during the tensioning operation, it is only necessary to push the two guide rails 2 closer to each other. By providing an abutment part 111 at the bottom of the tensioning member 11, the abutment part 111 can be fully attached to the semi-cylindrical arc surface of the locking part 21, which can increase the contact area between the tensioning member 11 and the abutment part 111, and evenly distribute the pressure transmitted by the tensioning member 11 to the locking part 21, making the locking part 21 more evenly stressed and less prone to damage. At the same time, this setting can achieve a stable connection between the guide rail 2 and the tensioning member 11 through the locking connection of the locking part 21 and the abutment part 111, so as to adapt to different installation postures of the guide rail 2. For example, when the guide rail 2 is set on a horizontal plane or a plane with a certain angle, a reliable connection can be achieved.

[0038] Furthermore, in this embodiment, the connecting part 22 is an annular groove with an opening, and the fixing rope 31 at one end of the membrane fabric 3 is embedded in the annular groove, with the membrane fabric 3 extending outward from the opening. It is understood that the guide rail 2 of this application has a predetermined shape and length, and both the snap-fit ​​part 21 and the connecting part 22 are arranged along their entire length, so that the membrane fabric 3 connected to the connecting part 22 forms a specific shape after tensioning. In the above embodiment, the opening of the annular groove faces the side of the connecting part 22 away from the snap-fit ​​part 21. By inserting one end of the fixing rope 31 of the membrane fabric 3 into the annular groove and extending the membrane fabric 3 outward from the opening, the membrane fabric 3 can be fixed to the connecting part 22. The opening is smaller than the diameter of the fixing rope 31 of the membrane fabric 3, so that the fixing rope 31 of the membrane fabric 3 is stuck in the annular groove during tensioning and will not come out of the connecting part 22.

[0039] Furthermore, in the embodiments of this application, such as Figure 1 , Figure 4 As shown, the self-locking assembly 41 includes a fixing member 411, a sliding member 412, and a locking member 413. Both the guide rail 2 and the sliding member 412 are fixed to the fixing member 411. Specifically, the sliding member 412 is vertically connected to the bottom of the fixing member 411 and slidably connected to the connecting seat 42. One end of the locking member 413 is connected to the sliding member 412, and the other end extends towards the other guide rail 2. The fixing member 411 connects the sliding member 412 to the guide rail 2, and the sliding member 412 is slidably connected to the connecting seat 42, allowing the sliding member 412 to slide relative to the connecting seat 42 under the influence of the guide rail 2. This design enables flexible adjustment of the guide rail 2's position, allowing it to be moved to a suitable position according to actual needs to meet the tensioning requirements of the membrane fabric 3. When the guide rail 2 moves to the set position, it can engage the two locking members 413, thereby achieving automatic locking. This function ensures that the guide rail 2 can be stably fixed in the target position after reaching it, avoiding accidental movement of the guide rail 2 due to external forces or other factors, improving the stability and reliability of the entire device, and ensuring the safety and accuracy of the skeleton membrane during installation and use. The self-locking component 41 has a simple structure, is easy to manufacture, and is precise in positioning and convenient to use, improving the accuracy of controlling the tension of the membrane cloth 3 and reducing the difficulty of tensioning.

[0040] In one specific embodiment, the fixing member 411 is made of square steel tube, which is made along the length of the guide rail 2. The guide rail 2 and the sliding member 412 are respectively connected to the two opposite end faces of the fixing member 411, and the overall connection has good stability.

[0041] In one specific technical solution of this application embodiment, such as Figure 4As shown, the end of the locking member 413 away from the sliding member 412 is bent toward the sliding member 412 to form a bent portion 4131; the bending directions of each set of locking members 413 are offset in opposite directions, and the relative outer surfaces of the bent portions 4131 can abut against each other, wherein at least one locking member 413 is an elastic member. The aforementioned bending portion 4131 and the main body of the locking member 413 form a bending space with an opening. By setting the locking member 413 to the above-mentioned structural form, the bending portions 4131 can accurately abut against each other when they are close together, and can accurately engage in the bending space when the guide rail 2 reaches the set position. When the tensioning mechanism 1 is relaxed, the membrane cloth 3 moves outward due to the reaction force of its own tension, thereby driving the guide rail 2 away from each other, and thus making the two locking members 413 engage with each other, forming a stable and reliable engaging connection. This achieves precise automatic locking, avoids locking failure or insecure locking caused by the position deviation or inaccurate engagement of the locking member 413, and improves the accuracy and stability of locking. At least one of the aforementioned locking components 413 is an elastic component with a certain rebound characteristic, capable of shifting to one side during the process of the two locking components 413 approaching each other, so as to allow the bent portion 4131 to engage within the bending space of each other; and automatically returning to its original shape after the bent portion 4131 engages. By reasonably designing the bending angle and direction, the bent portion 4131 engages with each other; the above technical solution can reduce space occupation without increasing the overall structural size, allowing the locking component 413 to complete the locking task in a compact structure, thus reducing space occupation; preferably, the locking component 413 is made by bending a plate-shaped component with a set width and length, which increases the contact area of ​​the two locking components 413 in the locked state, provides a more reliable locking force, effectively prevents the guide rail 2 from loosening or displacing due to external force after locking, and greatly enhances the stability and reliability of locking.

[0042] Furthermore, in the above embodiment, the connecting seat 42 includes a mounting plate 421 with a sliding groove 4211. The sliding groove 4211 is arranged parallel to the direction perpendicular to the intended tensioning direction, and the sliding member 412 is slidably disposed in the sliding groove 4211. Through the above technical solution, the movement direction of the sliding member 412 is restricted, thereby ensuring that the guide rail 2 moves along the tensioning direction.

[0043] Furthermore, in a specific embodiment, such as Figure 4As shown, the sliding member 412 includes a sliding rod 4121 and a sliding plate 4122; the sliding rod 4121 passes through the slide groove 4211; one end of the sliding plate 4122 is connected to the sliding rod 4121, and the other end extends towards the other slide groove 4211; a locking member 413 is disposed on the sliding plate 4122. Specifically, the sliding plate 4122 is disposed along the length direction of the guide rail 2, and the locking member 413 is disposed perpendicularly on the sliding plate 4122. The locking members 413 on the two oppositely disposed sliding plates 4122 are offset in opposite directions, so that the guide rail 2 can automatically lock the locking member 413 during the movement of the sliding rod 4121 and the sliding plate 4122. It should be noted that the sliding rod 4121 can be fixed in the set position of the slide groove 4211 by the fastener 4123 to facilitate the installation of the membrane cloth 3; and the fastener 4123 can be loosened before the tensioning operation begins so that the sliding rod 4121 can slide along the slide groove 4211; the fastener 4123 can be a bolt, and the sliding rod 4121 is provided with a matching external thread.

[0044] Furthermore, in one specific embodiment, the connecting seat 42 further includes a support plate 422, which is vertically disposed at the bottom of the mounting plate 421 and connected to the tubular truss 5. The support plate 422 enables a stable connection between the connecting seat 42 and the tubular truss 5.

[0045] This application also proposes a method for laterally tensioning a tubular truss frame membrane using the aforementioned transverse tensioning device, comprising the following steps:

[0046] S1. Fabricate the locking mechanism 4 and fix the locking mechanism 4 to the set position of the tubular truss 5; install the guide rail 2 on the locking mechanism 4;

[0047] S2, hoist the pipe truss 5, and thread the fixing rope 31 at one end of the membrane cloth 3 onto the guide rail 2;

[0048] Specifically, before installing the membrane cloth 3, the sliding rod 4121 is fixed in the slide groove 4211 by fasteners 4123, so that the guide rail 2 remains fixed; then the fixing rope 31 of the membrane cloth 3 is inserted into the connecting part 22 from one end of the guide rail 2, so that the membrane cloth 3 extends outward from the opening; the membrane cloth 3 on the two guide rails 2 can be installed one after the other as needed, or they can be installed simultaneously.

[0049] S3. Install the tensioning mechanism 1 onto the guide rail 2, and run the tensioning mechanism 1 to make the tensioning element 11 engage with the guide rail 2.

[0050] Specifically, the tensioning mechanism 1 is placed on one side of the guide rail 2, with the tensioning member 11 positioned between the locking part 21 and the connecting part 22 of the guide rail 2. Then, an electric wrench is inserted into the hexagonal hole 121 of the transmission gear 12, and the transmission gear 12 is rotated so that the abutting part 111 of the tensioning member 11 is fully abutted against the locking part of the guide rail 2. At this time, the tensioning mechanism 1 can be stably fixed to the guide rail 2 through the connection between the tensioning member 11 and the guide rail 2, so as to adapt to different installation forms of the guide rail 2.

[0051] S4. Continue to operate the tensioning mechanism 1, causing the sliding parts 412 to move closer to each other until the bent parts 4131 of the two locking parts 413 engage with each other;

[0052] Specifically, the fastener 4123 on the sliding rod 4121 is loosened, and then the electric wrench is operated to control the tensioning member 11 to move closer to each other, thereby driving the guide rail 2 and the locking member 413 to move closer to each other. When the two guide rails 2 move to the set position, the bent parts 4131 of the two locking members 413 just engage with each other. Then the electric wrench is removed, and under the reaction force of the membrane cloth 3, the two locking members 413 engage with each other, forming a stable and reliable engaging connection, thus realizing automatic locking.

[0053] S5. Reverse the tensioning mechanism 1 to separate the tensioning element 11 from the guide rail 2, and remove the tensioning mechanism 1.

[0054] At this point, the guide rail 2, membrane cloth 3, and locking mechanism 4 are all stably fixed in the set position of the truss 5, thus completing the tensioning operation of the membrane cloth 3. Subsequently, the above method can be used to carry out the tensioning operation of the next section of membrane cloth 3.

[0055] The advantages and positive effects of this utility model are:

[0056] (1) By adopting the above technical solution, the membrane tensioning and fixing are integrated into one, which can not only accurately control the position of the guide rail and thus control the tension of the membrane, but also enable it to automatically lock and fix when the set tensioning state is reached, reducing the difficulty and danger of membrane tensioning and improving tensioning efficiency.

[0057] (2) By designing the locking part of the guide rail as a semi-cylindrical arc surface and designing the bottom end of the tensioning part to match the shape of the semi-cylindrical arc surface, the locking part is subjected to more uniform force and is less prone to damage; a stable connection between the guide rail and the tensioning part is achieved to adapt to different guide rail installation postures.

[0058] (3) By designing the self-locking components as fixed parts, sliding parts and locking parts, the position of the guide rail can be flexibly adjusted to meet the tensioning requirements of the membrane fabric, ensuring that the guide rail can be stably fixed after reaching the target position, improving the stability and reliability of the entire device, and ensuring the safety and accuracy of the skeleton membrane during installation and use.

[0059] (4) By setting the structure of the locking parts, the bent parts can accurately abut against each other when they are close together, and can accurately engage in the bending space when the guide rail reaches the set position, thus achieving precise automatic locking. The overall structure is simple, the design is ingenious, and it has good stability and reliability.

[0060] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A transverse tensioning device for a tubular truss frame membrane, characterized in that, include: The tensioning mechanism includes a drive assembly and a tensioning element. The tensioning element is arranged opposite to the membrane fabric along the intended tensioning direction. The drive assembly can drive the tensioning element to move closer or further away synchronously. The guide rail is symmetrically arranged at the bottom of the tensioning mechanism and includes a snap-fit ​​part and a connecting part. The snap-fit ​​part is used to snap into the tensioning member, and the connecting part is used to connect to the membrane cloth. The locking mechanism includes a self-locking component and a connecting seat. The self-locking components are arranged in groups, and each group of self-locking components can be locked together. The top end of the self-locking component is connected to the guide rail, and the bottom end is slidably connected to the connecting seat. The connecting seat is used to connect the tubular truss.

2. The transverse tensioning device for a tubular truss frame membrane according to claim 1, characterized in that: The drive assembly includes a drive member, a transmission gear, and a toothed chain. The transmission gear cooperates with the drive member; the toothed chain meshes with the opposite ends of the transmission gear; and the tensioning member is fixed to the toothed chain and moves linearly under the drive of the toothed chain.

3. The transverse tensioning device for a tubular truss frame membrane according to claim 1 or 2, characterized in that: The snap-fit ​​part is located on the inner side of the connecting part, and the side of the snap-fit ​​part facing the connecting part is a semi-cylindrical arc surface. The bottom end of the tensioning member is provided with an abutment part that matches the semi-cylindrical arc surface.

4. The transverse tensioning device for a tubular truss frame membrane according to claim 3, characterized in that: The connecting part is an annular tube groove with an opening, and the fixing rope at one end of the membrane cloth is embedded in the annular tube groove. The membrane cloth extends outward from the opening.

5. The transverse tensioning device for a tubular truss frame membrane according to claim 1 or 2, characterized in that: The self-locking assembly includes a fixing member, a sliding member, and a locking member. The guide rail and the sliding member are both connected to the fixing member. The sliding member is slidably connected to the connecting seat. One end of the locking member is connected to the sliding member, and the other end extends toward the other guide rail.

6. The transverse tensioning device for a tubular truss frame membrane according to claim 5, characterized in that: The locking member is bent at the end away from the sliding member towards the sliding member to form a bent portion; the bent portions of each group of locking members are arranged opposite to each other and staggered so that the bent portions can abut against each other, and at least one of the locking members is an elastic member.

7. The transverse tensioning device for a tubular truss frame membrane according to claim 5, characterized in that: The connecting seat includes a mounting plate with a groove, the groove being arranged parallel to the intended tensioning direction, and the sliding member being slidably disposed in the groove.

8. The transverse tensioning device for a tubular truss frame membrane according to claim 7, characterized in that: The sliding member includes a sliding rod and a sliding plate; the sliding rod passes through the sliding groove; one end of the sliding plate is connected to the sliding rod, and the other end extends toward another sliding groove; the locking member is disposed on the sliding plate.

9. The transverse tensioning device for a tubular truss frame membrane according to claim 7, characterized in that: The connecting seat also includes a support plate, which is vertically disposed at the bottom of the mounting plate and connected to the tubular truss.

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