An angle-adjustable tensile membrane cable joint fixing device

Abstract

The utility model relates to a kind of angle-adjustable tensile membrane cable joint fixing device, it relates to tensile membrane cable structure technical field, the utility model discloses to solve the problem that the existing tensile membrane cable fixing device cannot keep the included angle between tensile cable and node plate unchanged and cannot guide tensile cable under the condition that wind load and snow load are larger, including mounting plate, fixed arm, tensile cable pressing plate, tensile membrane fixing device and swing angle adjusting device;Two fixed arms are hinged on mounting plate, and sector tooth is arranged on fixed arm, and two fixed arms are driven by sector tooth engagement, and the end of fixed arm is provided with tensile cable pressing plate, the upper end surface of mounting plate is provided with the tensile membrane fixing device for fixing tensile membrane, the tail end of mounting plate is provided with swing angle adjusting device, swing angle adjusting device is used to adjust the installation angle of mounting plate, mounting plate is set to sector shape, fixed slot in the form of sector shape is set up in mounting plate, two fixed arms are hinged in fixed slot, and the utility model is used for tensile membrane fixing.

Description

Technical Field

[0001] This utility model relates to the field of tension membrane cable structure technology, and in particular to an angle-adjustable tension membrane cable node fixing device. Background Technology

[0002] Tensile membrane structures are modern architectural structures that combine high-strength flexible membrane materials with cable nets and support systems, applying prestress to form a specific spatial shape and stability. The core principle is that the membrane material itself does not possess compressive or bending resistance; rather, prestress is introduced to give it structural stiffness, enabling it to withstand external loads and maintain morphological stability. A typical tensile membrane structure system mainly consists of three parts: first, high-performance membrane materials, such as PTFE fiberglass membranes, ETFE films, or PVC polyester fiber membranes, which are extremely lightweight, have good light transmittance, and strong weather resistance; second, a cable net system composed of boundary cables and stabilizing cables, these cables made of steel are used to fix and tension the membrane material boundaries, while transferring the force borne by the membrane surface to the main structure; and third, supporting components, including masts, arches, flying columns, or rigid boundary beams, which serve as the main load-bearing skeleton, ultimately transferring all forces to the foundation.

[0003] Angle deviation of the tension cable can severely disrupt the mechanical balance of a tensile membrane structure, triggering a chain of adverse reactions. The primary consequence is an imbalance in the distribution of prestress on the membrane surface. Changes in the design angle cause the direction of the tension force to deviate from the expected direction, reducing the effective tension component and potentially leading to localized relaxation and wrinkling of the membrane surface, while stress concentrates in other areas. A relaxed membrane surface is prone to violent shaking under wind loads, accelerating material fatigue and even tearing; under snow loads, water and snow easily accumulate at the wrinkles, significantly increasing the risk of collapse. Secondly, it transmits unexpected additional forces to the support system. Cable angle deviation causes supporting components such as masts to bear enormous additional bending moments, rather than the pure axial force designed in, easily leading to bending deformation.

[0004] However, existing tension membrane cable fixing devices typically use two arc-shaped node plates to fix the membrane material, with tension cable fixing sleeves hinged to both sides of the arc-shaped node plates. The tension cable fixing sleeves rely solely on the tension of the tension cable itself to maintain a constant angle with the node plates. Under conditions of high wind and snow loads, existing tension membrane cable fixing devices cannot maintain a constant angle between the tension cable and the node plates, nor can they guide the tension cable. Utility Model Content

[0005] In order to solve the problem that existing tension membrane cable fixing devices cannot maintain the angle between the tension cable and the node plate and cannot guide the tension cable under large wind and snow loads, this utility model provides an angle-adjustable tension membrane cable node fixing device to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model is:

[0007] An angle-adjustable tension membrane cable node fixing device includes a mounting plate, a fixing arm, a tension cable pressure plate, a tension membrane fixing device, and a swing angle adjustment device.

[0008] Two fixed arms are hinged to the mounting plate. The fixed arms are equipped with sector teeth. The two fixed arms are driven by the meshing of the sector teeth. Tensioning cable pressure plates are provided at the ends of the fixed arms. Tensioning membrane fixing devices are provided on the upper surface of the mounting plate for fixing the tensile membrane. Swing angle adjustment devices are provided at the tail end of the mounting plate for adjusting the installation angle of the mounting plate.

[0009] Furthermore, the mounting plate is fan-shaped, and a fan-shaped fixing groove is opened inside the mounting plate, with both fixing arms hinged in the fixing groove.

[0010] Furthermore, the tension membrane fixing device includes a boss, a film pressure plate, and a first fastening mechanism;

[0011] The boss is set on the upper end face of the mounting plate. The film plate is fixed to the mounting plate by the first fastening mechanism. The lower end face of the film plate is provided with a first protrusion and a second protrusion. The first protrusion and the second protrusion respectively abut against the upper end face of the mounting plate and the upper end face of the boss. The tensioned membrane is pressed between the first protrusion and the upper end face of the mounting plate.

[0012] Furthermore, the first fastening mechanism is a bolt, which passes through the membrane pressure plate and is threadedly connected to the mounting plate.

[0013] Furthermore, the bolts pass through the mounting plate and press against the upper end face of the fixing arm.

[0014] Furthermore, the film platen is fan-shaped.

[0015] Furthermore, the swing angle adjustment device includes an ear plate, a screw, a straight plate, and a second fastening mechanism;

[0016] The mounting plate has two parallel ear plates at its rear. Each ear plate is hinged with a screw on its left and right sides. The two screws are fixedly connected to the straight plate through a second fastening mechanism. The straight plate is provided with a fixing part.

[0017] Furthermore, the second fastening mechanism includes a first nut and a second nut;

[0018] The straight plate has two oblong holes, and two screws pass through the corresponding oblong holes. Each screw is threaded with a first nut and a second nut, which abut against the front and rear faces of the straight plate, respectively.

[0019] Furthermore, the fixing part is a fixing rod with a round hole.

[0020] Furthermore, the tension cable pressure plate is provided with an arc-shaped cable pressing part.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. An angle-adjustable tension membrane cable node fixing device, comprising two fixing arms on a mounting plate for fixing tension cables. The two fixing arms can swing at equal angles and are fixed to the mounting plate to prevent changes in the angle between the tension cables and the mounting plate due to wind and snow loads, which could disrupt the mechanical balance of the tension membrane structure and cause localized relaxation, wrinkling, or stress concentration on the membrane surface. The two fixing arms are connected by a sector gear transmission to achieve equal-angle swinging, ensuring symmetry of the two tension cables along the tension membrane axis and equal force at the connection points between the tension membrane and the tension cables on both sides, preventing stress concentration on one side that could lead to tearing of the tension membrane. Bolts that can be pressed onto the fixing arms are provided to lock the swing angle of the fixing arms and prevent changes in the angle between the tension cables and the mounting plate.

[0023] 2. Traditional tensile membrane fixing requires drilling holes in the tensile membrane, using bolts to pass through these holes, and pressing the membrane between two node plates. This invention features an arched membrane pressure plate, which avoids drilling holes in the tensile membrane while applying greater downward pressure. The first and second protrusions of the membrane pressure plate form a lever structure with the bolts. When tightening the bolts, the first protrusion applies greater pressure to the tensile membrane, and the bolts do not need to pass through the membrane to complete the fixing, preventing damage from perforation.

[0024] 3. This utility model has two screws hinged to the mounting plate. The relative angle between the straight plate and the mounting plate is adjusted by the cooperation of the waist-shaped hole and the screws. The straight plate remains fixed after the relative angle is adjusted by the fastening action of the first nut and the second nut. Attached Figure Description

[0025] Figure 1 This is an axonometric view of the upper right angle of this utility model;

[0026] Figure 2 This is an axonometric view of the upper left angle of this utility model;

[0027] Figure 3 This is an exploded view of the present invention;

[0028] Figure 4 This is a structural diagram of the mounting plate;

[0029] Figure 5 This is a cross-sectional view of the mounting plate;

[0030] Figure 6 This is a longitudinal sectional view of the film platen;

[0031] Figure 7 The upper left is the isometric view of the swing angle adjustment device;

[0032] Figure 8 This is the upper right isometric view of the swing angle adjustment device.

[0033] In the diagram: 1. Mounting plate; 101. Fixing groove; 2. Fixing arm; 3. Sector tooth; 4. Tensioning cable pressure plate; 501. Boss; 502. Membrane pressure plate; 504. First protrusion; 505. Second protrusion; 506. Bolt; 601. Ear plate; 602. Screw; 603. Straight plate; 604. Fixing part; 605. Waist-shaped hole; 606. First nut; 607. Second nut. Detailed Implementation

[0034] Specific implementation method one: See Figure 1-5 As shown, an angle-adjustable tension membrane cable node fixing device is provided. This embodiment includes a mounting plate 1, a fixing arm 2, a tension cable pressure plate 4, a tension membrane fixing device, and a swing angle adjustment device.

[0035] Two fixed arms 2 are hinged to the mounting plate 1. The fixed arms 2 are provided with sector teeth 3. The two fixed arms 2 are driven by the meshing of sector teeth 3. The end of the fixed arm 2 is provided with a tension cable pressure plate 4. The upper end surface of the mounting plate 1 is provided with a tension membrane fixing device for fixing the tension membrane. The tail end of the mounting plate 1 is provided with a swing angle adjustment device for adjusting the installation angle of the mounting plate 1.

[0036] Furthermore, the mounting plate 1 is fan-shaped and provides support for the fixing arm 2. The fixing arm 2 is a rectangular plate structure, and the hinge of the fixing arm 2 is fixed with a rotating shaft by an interference fit. The mounting plate 1 has two shaft holes, and the rotating shafts on the two fixing arms 2 are rotatably connected to the corresponding shaft holes.

[0037] The tension cable clamping plate 4 has a round hole, and the mounting plate 1 has bolt holes. The tension cable clamping plate 4 is detachably fixed to the end of the fixing arm 2 by bolts. The tension cable clamping plate 4 is used to fix the tension cable to the end of the fixing arm 2.

[0038] A sector-shaped tooth 3 is provided at the hinge of the fixed arm 2. The sector-shaped tooth 3 is integrally formed with the fixed arm 2, and the angle of the sector-shaped tooth 3 is 180°. The two fixed arms 2 are driven by the meshing of the sector-shaped tooth 3, enabling the two fixed arms 2 to open and close synchronously. The meshing of the sector-shaped tooth 3 prevents the fixed arm 2 from deviating in swing angle when under force. The tensile membrane is fan-shaped at the node, and tension cables are sewn to both sides of the fan-shaped surface of the tensile membrane. In traditional tensile membrane fixing structures, when there is a force near the node where the tension cables swing away from the tensile membrane, stress concentration is prone to occur at the connection between the tensile membrane and the tension cables, leading to tearing of the tensile membrane. Therefore, the sector-shaped tooth 3 enables the two fixed arms 2 to swing at equal angles, ensuring that the two tension cables are always symmetrical along the axis of the tensile membrane, so that the tension membrane and the connection between the tensile cables on both sides are subjected to equal force, avoiding stress concentration on one side that could lead to tearing of the tensile membrane.

[0039] Specific Implementation Method Two: See Figure 1-5 As shown, the mounting plate 1 in this embodiment is fan-shaped, and a fan-shaped fixing groove 101 is provided in the mounting plate 1. Both fixing arms 2 are hinged in the fixing groove 101.

[0040] Furthermore, the mounting plate 1 is fan-shaped with a fan-shaped fixing groove 101 inside, which facilitates the fixing of the fan-shaped tension membrane while providing swing space for the fixing arm 2. The fixing groove 101 limits the fixing arm 2, preventing it from exceeding the design range during swing. The fixing groove 101 clamps the pivot of the fixing arm 2 from above and below, eliminating the need for an axis limiting mechanism for the fixing arm 2.

[0041] Specific implementation method three: See Figure 1-6 As shown, the tension membrane fixing device of this embodiment includes a boss 501, a film pressure plate 502, and a first fastening mechanism.

[0042] The boss 501 is provided on the upper end face of the mounting plate 1. The film plate 502 is fixed on the mounting plate 1 by the first fastening mechanism. The lower end face of the film plate 502 is provided with a first protrusion 504 and a second protrusion 505. The first protrusion 504 and the second protrusion 505 respectively abut against the upper end face of the mounting plate 1 and the upper end face of the boss 501. The tensioned membrane is pressed between the first protrusion 504 and the upper end face of the mounting plate 1.

[0043] Furthermore, the boss 501 is provided on the upper end face of the mounting plate 1, forming a step with a drop on the upper end face of the mounting plate 1. The membrane pressure plate 502, the first protrusion 504, and the second protrusion 505 form an arched structure. The first fastening mechanism applies downward pressure at the center of the arch. The first protrusion 504, which avoids contact with the tension membrane, has bolt holes, and when the bolts 506 are tightened, the first protrusion 504 can apply greater pressure to the tension membrane. The boss 501 forms a stepped clamping structure between the end face of the mounting plate 1 and the membrane pressure plate 502, enhancing the fixing effect on the tension membrane.

[0044] Detailed Implementation Method Four: See [link] Figure 1-6 As shown, the first fastening mechanism in this embodiment is a bolt 506, which passes through the film pressure plate 502 and is threadedly connected to the mounting plate 1.

[0045] Furthermore, the film plate 502 is provided with multiple round holes at equal intervals, and the boss 501 of the mounting plate 1 is provided with multiple threaded holes corresponding to the round holes on the film plate 502. The bolt 506 passes through the round holes and engages with the threaded holes to fix the film plate 502 on the mounting plate 1.

[0046] Specific implementation method five: See Figure 1-6 As shown, in this embodiment, the bolt 506 passes through the mounting plate 1 and presses against the upper end face of the fixing arm 2.

[0047] Furthermore, the bolt holes on the mounting plate 1 penetrate the upper surface of the mounting plate 1, and the bolts 506 press against the fixing arm 2. While fixing the membrane pressure plate 502, the bolts 506 also apply pressure to the fixing arm 2, thus fixing the fixing arm 2 to the mounting plate 1 and preventing the tensioning cable from changing its angle with the mounting plate 1 due to the swinging of the fixing arm 2, which could cause tearing of the tensioning membrane.

[0048] The bolt hole spacing on the mounting plate 1 is smaller than that on the fixing arm 2, so that at least one bolt 506 that applies pressure is covered on the fixing arm 2.

[0049] Specific implementation method six: See Figure 3 As shown, the film platen 502 in this embodiment is fan-shaped.

[0050] Furthermore, both the film pressure plate 502 and the mounting plate 1 are fan-shaped, so that they can fully fit the tensile membrane.

[0051] Detailed implementation method seven: See Figure 3 and 7 As shown in Figure 8, the swing angle adjustment device of this embodiment includes an ear plate 601, a screw 602, a straight plate 603, and a second fastening mechanism.

[0052] The rear end of the mounting plate 1 is provided with two parallel ear plates 601. Each ear plate 601 is hinged with a screw 602 on its left and right sides. The two screws 602 are fixedly connected to the straight plate 603 through a second fastening mechanism. The straight plate 603 is provided with a fixing part 604.

[0053] Furthermore, two parallel lugs 601 are integrally formed with the mounting plate 1 to provide hinge space for the screw 602. The tail of the screw 602 is provided with a pivot perpendicular to the axis of the screw 602. The pivot passes through a through hole on the lug 601, allowing the screw 602 to rotate around the lug 601.

[0054] The second fastening mechanism is used to fix the screw 602 to the straight plate 603. When the two screws 602 are fixed to the straight plate 603 at different positions on the axis, different included angles are formed between the mounting plate 1 and the straight plate 603, thereby realizing the adjustment of the angle between the tension membrane and the fixing part 604.

[0055] Detailed Implementation Method Eight: See also Figure 3 and 7 As shown in Figure 8, the second fastening mechanism in this embodiment includes a first nut 606 and a second nut 607.

[0056] The straight plate 603 has two oblong holes 605. Two screws 602 pass through the corresponding oblong holes 605 respectively. Each screw 602 is threaded with a first nut 606 and a second nut 607. The first nut 606 and the second nut 607 abut against the front end face and the rear end face of the straight plate 603 respectively.

[0057] Furthermore, during installation, both screws 602 are perpendicular to the straight plate 603. After adjusting the position and depth of the screws 602 in the oblong hole 605, the screws 602 are fixed to the straight plate 603 by the first nut 606 and the second nut 607, ensuring that the straight plate 603 and the mounting plate 1 remain fixed after adjusting the relative angle.

[0058] Detailed implementation method nine: See Figure 3 and 7 As shown in Figure 8, the fixing part 604 in this embodiment is a fixing rod with a round hole.

[0059] Furthermore, to facilitate the fixing of this device to the supporting mast, multiple sets of bolt holes are provided at the end of the fixing rod.

[0060] Detailed Implementation Method Ten: See [link] Figure 4 As shown, the tensioning cable pressure plate 4 of this embodiment is provided with an arc-shaped cable pressure part.

[0061] Furthermore, the arc-shaped cable clamping part is used to fasten the tension cable and press against the rope cap at the end of the tension cable to prevent the tension cable from coming out of the fixed arm 2.

[0062] In use, place the edge of the tensile membrane on the upper surface of the mounting plate 1, and use some bolts 506 to press the tensile membrane between the first protrusion 504 of the film pressure plate 502 and the upper surface of the mounting plate 1. Use the tension cable pressure plate 4 to press the tension cables on both sides of the tensile membrane onto the fixed arm 2, and adjust the unfolding angle of the fixed arm 2 to make the tensile membrane reach the ideal tension state. Use bolts 506 to pass through the film pressure plate 502 and the upper surface of the mounting plate 1, and press them onto the fixed arm 2 to complete the fixation of the fixed arm 2. Install the first nut 606 on the screw 602, insert the two screws 602 into the corresponding oblong holes 605 respectively, and tighten the two second nuts 607 respectively to make the straight plate 603 form the expected angle with the mounting plate 1. Finally, use the first nut 606 to lock the front end of the straight plate 603 to complete the fixation of the entire tensile membrane structure.

[0063] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An angle-adjustable tension membrane cable node fixing device, characterized in that: Includes mounting plate (1), fixing arm (2), tension cable pressure plate (4), tension membrane fixing device and swing angle adjustment device; Two fixed arms (2) are hinged on the mounting plate (1). The fixed arms (2) are provided with fan-shaped teeth (3). The two fixed arms (2) are driven by meshing through the fan-shaped teeth (3). The end of the fixed arm (2) is provided with a tension cable pressure plate (4). The upper end of the mounting plate (1) is provided with a tension membrane fixing device for fixing the tension membrane. The tail end of the mounting plate (1) is provided with a swing angle adjustment device for adjusting the installation angle of the mounting plate (1).

2. The angle-adjustable tension membrane cable node fixing device according to claim 1, characterized in that: The mounting plate (1) is fan-shaped, and a fan-shaped fixing groove (101) is provided inside the mounting plate (1). Both fixing arms (2) are hinged in the fixing groove (101).

3. The angle-adjustable tension membrane cable node fixing device according to claim 2, characterized in that: The tension membrane fixing device includes a boss (501), a film pressure plate (502), and a first fastening mechanism; The boss (501) is set on the upper end face of the mounting plate (1). The film plate (502) is fixed on the mounting plate (1) by the first fastening mechanism. The lower end face of the film plate (502) is provided with a first protrusion (504) and a second protrusion (505). The first protrusion (504) and the second protrusion (505) respectively abut against the upper end face of the mounting plate (1) and the upper end face of the boss (501). The tensioned membrane is pressed between the first protrusion (504) and the upper end face of the mounting plate (1).

4. The angle-adjustable tension membrane cable node fixing device according to claim 3, characterized in that: The first fastening mechanism is a bolt (506), which passes through the membrane pressure plate (502) and is threadedly connected to the mounting plate (1).

5. The angle-adjustable tension membrane cable node fixing device according to claim 4, characterized in that: The bolt (506) passes through the mounting plate (1) and presses against the upper end face of the fixing arm (2).

6. The angle-adjustable tension membrane cable node fixing device according to claim 4, characterized in that: The film platen (502) is fan-shaped.

7. The angle-adjustable tension membrane cable node fixing device according to claim 1, characterized in that: The swing angle adjustment device includes an ear plate (601), a screw (602), a straight plate (603), and a second fastening mechanism; The rear end of the mounting plate (1) is provided with two parallel ear plates (601). Each ear plate (601) is hinged with a screw (602) on its left and right sides. The two screws (602) are fixedly connected to the straight plate (603) through the second fastening mechanism. The straight plate (603) is provided with a fixing part (604).

8. The angle-adjustable tension membrane cable node fixing device according to claim 7, characterized in that: The second fastening mechanism includes a first nut (606) and a second nut (607); The straight plate (603) has two oblong holes (605), and two screws (602) pass through the corresponding oblong holes (605). Each screw (602) is threaded with a first nut (606) and a second nut (607). The first nut (606) and the second nut (607) abut against the front end face and the rear end face of the straight plate (603) respectively.

9. The angle-adjustable tension membrane cable node fixing device according to claim 7, characterized in that: The fixing part (604) is a fixing rod with a round hole.

10. The angle-adjustable tension membrane cable node fixing device according to claim 1, characterized in that: An arc-shaped cable pressing part is provided on the tensioning cable pressing plate (4).

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