Fixing device for glass fiber reinforced plastic membrane shell production

Abstract

The utility model relates to the technical field of production and transportation of glass fiber reinforced plastic membrane shells, and provides a fixing device for glass fiber reinforced plastic membrane shell production, which comprises a membrane shell frame, and a placing groove for placing a glass fiber reinforced plastic membrane shell is arranged at the top of the membrane shell frame; the connecting plate is arranged on one side of the membrane shell frame, a plurality of clamping convex blocks and a plurality of clamping through holes are distributed on the connecting plate at intervals, and one clamping through hole is formed between every two adjacent clamping convex blocks; and when the two membrane shell frames are buckled with each other, the clamping convex block of one membrane shell frame can be clamped into the clamping through hole of the other membrane shell frame. By means of the technical scheme, the technical problems that a wooden fixing device is large in weight, prone to loosening and difficult to recycle, potential safety hazards exist in transportation, and cost is increased are solved.

Description

Technical Field

[0001] This utility model relates to the field of production and transportation technology of fiberglass membrane shells, specifically to a fixing device for the production of fiberglass membrane shells. Background Technology

[0002] In the production and transportation of fiberglass membrane shells, to ensure that the tubular fiberglass membrane shells remain stable and undamaged during transportation, it is usually necessary to use fixing devices to pack and secure them. Currently, wooden fixing devices are widely used in the industry to accomplish this task. These devices are mainly constructed by assembling wooden strips and blocks using mortise and tenon joints or nails, utilizing the rigidity and workability of wood to wrap and secure the fiberglass membrane shell.

[0003] However, existing wooden fixing devices have many drawbacks. First, the high density of wood significantly increases the weight of the entire fixing device, requiring considerable manpower and resources for handling and increasing transportation costs. Second, during transportation, wooden fixing devices based on mortise and tenon joints or nails are prone to loosening due to external forces such as vibration and compression, making it difficult to continuously and stably secure the fiberglass membrane shell and posing transportation safety hazards. Third, because wood is easily damaged by environmental factors during use, and its recycling process is complex and costly, the fixing device is not easy to recycle, resulting in resource waste and increasing the operating costs of enterprises. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a fixing device for the production of fiberglass membrane shells, which solves the technical problems of existing wooden fixing devices being heavy, easy to loosen, difficult to recycle, posing transportation safety hazards and increasing costs.

[0005] According to one aspect, at least one embodiment of the present invention provides a fixing device for producing fiberglass membrane shells, comprising:

[0006] A membrane housing frame, wherein the top of the membrane housing frame is provided with a placement groove for placing a fiberglass membrane housing;

[0007] A connecting plate is provided on one side of the membrane housing frame. The connecting plate has a plurality of snap-fit ​​protrusions and a plurality of snap-fit ​​through holes spaced apart, and a snap-fit ​​through hole is provided between two adjacent snap-fit ​​protrusions. When the two membrane housing frames are fastened together, the snap-fit ​​protrusion of one membrane housing frame can be snapped into the snap-fit ​​through hole of the other membrane housing frame.

[0008] Optionally, the bottom surface of the membrane frame is also provided with a placement groove, and the placement groove at the top of the membrane frame has the same shape as the placement groove at the bottom. The membrane frame is used to be mounted on the outer circumferential surface of the fiberglass membrane.

[0009] Optionally, the connecting plate and the membrane frame are integrally formed, the thickness of the connecting plate is half the thickness of the membrane frame, and the height of the snap-fit ​​protrusion protruding from the surface of the connecting plate does not exceed half the thickness of the membrane frame.

[0010] Optionally, the snap-fit ​​protrusion has a through hole, the axis of which is perpendicular to the axis of the snap-fit ​​protrusion. A receiving groove is formed along the axis of the snap-fit ​​protrusion, the axis of which is perpendicular to the axis of the through hole and they are interconnected. A slidable pressing block is provided in the through hole, and a rotatable pushing member is provided in the receiving groove. The pushing member is used to push the pressing block outward of the through hole, so that the pressing block presses against the inner wall of the snap-fit ​​through hole.

[0011] Optionally, there are two through holes, which are symmetrically distributed about the receiving groove. Each through hole contains a pressing block, and a tension spring is provided between the two pressing blocks. The tension spring is used to pull the pressing block into the receiving groove so that the pressing block abuts against the pusher.

[0012] Optionally, the pusher includes:

[0013] A rotating rod is rotatably disposed within the receiving groove along the axial direction of the receiving groove;

[0014] A push block is provided on the rotating rod. The push block is elliptical in shape. Rotating the push block can push the pressing block to move.

[0015] Optionally, the bottom of the receiving groove is provided with an opening, and a fixing plate is provided at the opening. The bottom of the rotating rod passes through the fixing plate and extends to the outside of the fixing plate.

[0016] Optionally, the bottom end of the rotating rod is provided with a circular plate, and both the circular plate and the fixing plate are provided with through grooves, and further includes:

[0017] A pin is detachably mounted on the circular plate. The pin can pass through the through slot of the circular plate and the fixed plate to limit and fix the rotating rod.

[0018] Optionally, the membrane frame is a plastic sheet.

[0019] Optionally, the membrane frame has a hollow structure.

[0020] The beneficial effects of the embodiments of this utility model are as follows:

[0021] In this invention, when fixing the fiberglass membrane shell, multiple membrane shell frames are first spliced ​​together as needed and then placed on the ground. The fiberglass membrane shell is then placed in the placement groove. Two membrane shell frames are used for each fiberglass membrane shell, with the two frames placed at opposite ends of the membrane shell. The placement groove at the top of the membrane shell frame fits tightly against the outer wall of the fiberglass membrane shell. During fastening, the snap-fit ​​protrusion of one membrane shell frame is aligned with the snap-fit ​​through-hole of the other membrane shell frame, and a certain pressure is applied to allow the snap-fit ​​protrusion to smoothly engage with the through-hole, thus completing the initial connection of the two membrane shell frames and achieving the wrapping and fixing of the fiberglass membrane shell. The membrane shell frames are made of lightweight plastic material, which significantly reduces the overall weight of the fixing device compared to traditional wooden materials, reducing manpower consumption and transportation costs during handling. The close fit between the arc-shaped placement groove and the outer wall of the fiberglass membrane shell effectively restricts the movement of the membrane shell within the placement groove, improving the stability of the fixing. The interlocking connection method, which uses protrusions and through holes, is more compact and convenient than the mortise and tenon or nail connections in wooden devices. It can also withstand a certain amount of vibration and compression during transportation, reducing the possibility of loosening and improving transportation safety. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a single membrane shell frame in one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure after the membrane shell frame is assembled in the embodiment;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of installing the fiberglass membrane shell after splicing the membrane shell frame in the embodiment;

[0026] Figure 4 for Figure 1 A schematic diagram of the connecting plate in the embodiment;

[0027] Figure 5 for Figure 4 A magnified view of a portion of AA in the embodiment;

[0028] Figure 6 for Figure 5 A magnified view of a portion of point B in the embodiment;

[0029] Figure 7 for Figure 6 A schematic diagram showing the positional relationship between the pushing block and the abutting block in the embodiment;

[0030] Figure 8 for Figure 5 A magnified view of a portion of point C in the embodiment.

[0031] In the diagram: 1. Membrane housing frame; 100. Fiberglass membrane housing; 101. Placement groove; 2. Connecting plate; 3. Snap-fit ​​protrusion; 201. Snap-fit ​​through hole; 303. Through hole; 301. Receiving groove; 5. Pressing block; 4. Pushing component; 401. Rotating rod; 402. Pushing block; 403. Tension spring; 302. Opening; 6. Fixing plate; 7. Circular plate; 8. Pin. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0033] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0034] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] like Figures 1-8 As shown, it illustrates a fixing device for producing fiberglass membrane shells according to an embodiment of the present invention, including a membrane shell frame 1. The top of the membrane shell frame 1 is provided with a placement groove 101 for placing a fiberglass membrane shell 100. A connecting plate 2 is provided on one side of the membrane shell frame 1. A plurality of snap-fit ​​protrusions 3 and a plurality of snap-fit ​​through holes 201 are distributed at intervals on the connecting plate 2, and a snap-fit ​​through hole 201 is provided between two adjacent snap-fit ​​protrusions 3. When two membrane shell frames 1 are fastened together, the snap-fit ​​protrusion 3 of one membrane shell frame 1 can be snapped into the snap-fit ​​through hole 201 of the other membrane shell frame 1.

[0039] For example, such as Figure 1 As shown, the membrane frame 1 is a plate-shaped structure made of lightweight plastic, with an overall arc shape. The top of the membrane frame 1 is provided with an arc-shaped placement groove 101 that matches the outer contour of the fiberglass membrane shell 100. The placement groove 101 can stably support the fiberglass membrane shell 100. The connecting plate 2 is vertically fixed to one side edge of the membrane frame 1. Several trapezoidal snap-fit ​​protrusions 3 and circular snap-fit ​​through holes 201 are regularly distributed on the connecting plate 2. A snap-fit ​​through hole 201 is provided between two adjacent snap-fit ​​protrusions 3. The snap-fit ​​through holes 201 and snap-fit ​​protrusions 3 are staggered. The size of the snap-fit ​​protrusions 3 is adapted to the snap-fit ​​through holes 201 to ensure that the two can snap together.

[0040] Specifically, when fixing the fiberglass membrane shell 100, multiple membrane shell frames 1 are first spliced ​​together as needed and then placed on the ground. The fiberglass membrane shell 100 is then placed on the placement groove 101. Two membrane shell frames 1 are needed for each fiberglass membrane shell 100, and the two frames 1 are placed at opposite ends of the fiberglass membrane shell 100. The placement groove 101 at the top of the membrane shell frame 1 fits tightly against the outer wall of the fiberglass membrane shell 100.

[0041] It should be noted that when it is necessary to interlock the two membrane frames 1 to achieve circumferential fixation of the fiberglass membrane 100, the snap-fit ​​protrusion 3 of one membrane frame 1 is aligned with the snap-fit ​​through hole 201 of the other membrane frame 1, and then a certain pressure is applied to make the snap-fit ​​protrusion 3 smoothly snap into the snap-fit ​​through hole 201, thereby completing the initial connection of the two membrane frames 1 and achieving the wrapping and fixing of the fiberglass membrane 100.

[0042] The membrane housing frame 1 is made of lightweight plastic, which significantly reduces the overall weight of the fixing device compared to traditional wooden materials, thus reducing manpower consumption and transportation costs during handling. The fitted design of the arc-shaped placement groove 101 with the outer wall of the fiberglass membrane housing 100 effectively restricts the movement of the membrane housing within the placement groove 101, improving the stability of the fixing. The connection method of the snap-fit ​​protrusion 3 and the snap-fit ​​through hole 201 is more compact and convenient than the mortise and tenon or nail connection of wooden devices, and can withstand a certain amount of vibration and compression during transportation, reducing the possibility of loosening and improving transportation safety.

[0043] In some examples, the bottom surface of the membrane frame 1 is also provided with a placement groove 101, and the placement groove 101 at the top of the membrane frame 1 has the same shape as the placement groove 101 at the bottom. The membrane frame 1 is used to be mounted on the outer circumference of the fiberglass membrane shell 100.

[0044] For example, such as Figure 2 As shown, the bottom surface of the membrane frame 1 is also provided with an arc-shaped placement groove 101 that is exactly the same shape as the top. The two placement grooves 101 are symmetrically distributed vertically with the middle plane of the membrane frame 1 as the plane of symmetry. The membrane frame 1 is semi-cylindrical in shape, and the curvature of its inner wall is consistent with the curvature of the outer wall of the fiberglass membrane 100. It can be tightly mounted on the outer circumference of the fiberglass membrane 100, wrapping the membrane from both the top and bottom. When it is necessary to swing multiple layers of fiberglass membrane 100, it is only necessary to add the membrane frame 1 between two adjacent layers. The lightweight membrane frame 1 will not compress the fiberglass membrane 100.

[0045] In use, two membrane housing frames 1 are respectively mounted on the upper and lower sides of the fiberglass membrane housing 100 along its outer circumference, so that the placement grooves 101 at the top and bottom of the membrane housing frame 1 are tightly fitted with the upper and lower surfaces of the membrane housing, respectively. Then, the two membrane housing frames 1 are fastened together by the snap-fit ​​protrusions 3 and snap-fit ​​through holes 201 on the connecting plate 2, thereby achieving circumferential fixation of the fiberglass membrane housing 100 and ensuring that the membrane housing will not shift vertically during transportation.

[0046] The symmetrical placement slots 101 allow the membrane frame 1 to clamp and fix the fiberglass membrane shell 100 from two directions, enhancing the constraint on the membrane shell and effectively preventing it from swaying or shifting due to vibration or other external forces during transportation. The semi-cylindrical structure of the membrane frame 1 better conforms to the cylindrical outer wall of the membrane shell, achieving uniform wrapping of the membrane shell and further improving the stability and reliability of the fixing device, providing stronger protection for the safe transportation of the membrane shell.

[0047] In some examples, the connecting plate 2 and the membrane frame 1 are integrally formed, the thickness of the connecting plate 2 is half the thickness of the membrane frame 1, and the height of the snap-fit ​​protrusion 3 protruding from the surface of the connecting plate 2 does not exceed half the thickness of the membrane frame 1.

[0048] For example, such as Figures 1-3 As shown, the connecting plate 2 and the membrane housing 1 are manufactured using an integral injection molding process, ensuring no obvious connection gaps between them and high overall structural strength. The thickness of the connecting plate 2 is half the thickness of the membrane housing 1. This thickness design ensures that the connecting plate 2 has sufficient strength to withstand the external forces generated during the snap-fit ​​process without excessively increasing the weight of the fixing device. The height of the snap-fit ​​protrusion 3 protruding from the surface of the connecting plate 2 does not exceed half the thickness of the membrane housing 1. This ensures that after the snap-fit ​​protrusion 3 is snapped into the snap-fit ​​through hole 201, it will not adversely affect the overall structural stability of the membrane housing 1, and can guarantee the tightness and aesthetics of the snap-fit.

[0049] Since the connecting plate 2 and the membrane housing 1 are integrally formed, no additional connection process is required during manufacturing, directly forming a complete structure. When the two membrane housings 1 are fastened together through the snap-fit ​​protrusions 3 and snap-fit ​​through holes 201 on the connecting plate 2, the snap-fit ​​protrusions 3, with their reasonable protrusion height, can smoothly engage with the snap-fit ​​through holes 201. Furthermore, due to the moderate thickness of the connecting plate 2, it can undergo a certain degree of elastic deformation during the snap-fit ​​process, making the snap-fit ​​even tighter. At the same time, the integrally formed structure ensures that there will be no relative displacement or loosening between the connecting plate 2 and the membrane housing 1 during transportation.

[0050] The one-piece molding structure eliminates the problem of loosening at the joints caused by mortise and tenon or nail connections in traditional wooden devices, improving the overall reliability of the fixing device. The optimized design of the connecting plate 2 thickness and the snap-fit ​​protrusion 3 minimizes the weight of the fixing device while ensuring connection strength, meeting lightweight design requirements. Furthermore, this structural design simplifies the manufacturing process, reduces manufacturing costs, and improves production efficiency.

[0051] In some examples, the snap-fit ​​protrusion 3 is provided with a through hole 303, the axis of the through hole 303 is perpendicular to the axis of the snap-fit ​​protrusion 3, and a receiving groove 301 is provided along the axis of the snap-fit ​​protrusion 3, the axis of the receiving groove 301 is perpendicular to the axis of the through hole 303 and they are interconnected; a slidable pressing block 5 is provided in the through hole 303, and a rotatable pushing member 4 is provided in the receiving groove 301. The pushing member 4 is used to push the pressing block 5 to the outside of the through hole 303, so that the pressing block 5 presses against the inner wall of the snap-fit ​​through hole 201.

[0052] For example, such as Figures 4-5 As shown, the snap-fit ​​protrusion 3 is cuboid in shape, with a through hole 303 inside. The axis of the through hole 303 is perpendicular to the axis of the snap-fit ​​protrusion 3, meaning the through hole 303 extends along the width direction of the snap-fit ​​protrusion 3. Inside the snap-fit ​​protrusion 3, a receiving groove 301 is formed along its length direction. The axis of the receiving groove 301 is perpendicular to the axis of the through hole 303 and they are interconnected, forming a cross-shaped internal space structure. A slidable pressing block 5 is provided inside the through hole 303. The shape of the pressing block 5 is adapted to the through hole 303, allowing it to slide freely within the through hole 303. A rotatable pushing member 4 is provided inside the receiving groove 301. The pushing member 4 is used to push the pressing block 5 outward from the through hole 303, so that the pressing block 5 can press against the inner wall of the snap-fit ​​through hole 201.

[0053] After the snap-fit ​​protrusion 3 is engaged in the snap-fit ​​through hole 201, rotating the pusher 4 causes the abutment block 5 to slide outward within the through hole 303, causing one end of the abutment block 5 to extend out of the through hole 303 and press against the inner wall of the snap-fit ​​through hole 201. This close contact between the abutment block 5 and the inner wall of the snap-fit ​​through hole 201 increases the friction between the snap-fit ​​protrusion 3 and the snap-fit ​​through hole 201, preventing them from loosening during transportation due to vibration or other external forces. When disassembly is required, rotating the pusher 4 in the opposite direction causes the abutment block 5 to slide towards the receiving groove 301 under its own weight or the action of the reset device, releasing it from pressure on the inner wall of the snap-fit ​​through hole 201, allowing the snap-fit ​​protrusion 3 to be easily removed from the snap-fit ​​through hole 201.

[0054] The design of the pressure block 5 and the pushing component 4 effectively solves the problem of loosening easily under external force in traditional snap-fit ​​structures. The pressure block 5, by pressing against the inner wall of the snap-fit ​​through-hole 201, enhances the connection stability of the snap-fit ​​part, enabling the fixing device to remain stable in complex transportation environments and ensuring that the fiberglass membrane shell 100 will not be damaged due to loosening of the fixing device. This structural design has good adjustability and disassembly, facilitating the installation and disassembly of the fixing device and improving work efficiency.

[0055] In some examples, there are two through holes 303, which are symmetrically distributed with the receiving groove 301 as the axis of symmetry. Each through hole 303 has a pressing block 5, and a tension spring 403 is provided between the two pressing blocks 5. The tension spring 403 is used to pull the pressing block 5 into the receiving groove 301 so that the pressing block 5 abuts against the pusher 4.

[0056] For example, such as Figure 6 As shown, two through holes 303 are provided, symmetrically distributed on both sides of the snap-fit ​​protrusion 3 with the receiving groove 301 as the axis of symmetry. Each through hole 303 contains a pressing block 5. The two pressing blocks 5 are connected by a tension spring 403, with both ends of the tension spring 403 fixed to the two pressing blocks 5 respectively, for pulling the pressing blocks 5 into the receiving groove 301 so that the pressing blocks 5 can abut against the pusher 4. The pusher 4 is located in the middle of the receiving groove 301, and its shape is adapted to the receiving groove 301, allowing it to rotate freely within the receiving groove 301.

[0057] In the initial state, the tension spring 403 is slightly tensioned or naturally stretched, pulling the two pressing blocks 5 into the receiving groove 301, causing the pressing blocks 5 to abut against the pusher 4. When the engaging protrusion 3 engages into the engaging through hole 201, rotating the pusher 4 simultaneously pushes the two pressing blocks 5 to slide outwards from the through holes 303 on both sides, overcoming the tension of the tension spring 403, causing the pressing blocks 5 to press against the inner wall of the engaging through hole 201. At this time, the tension spring 403 is in a stretched state, providing a restoring force for the pressing blocks 5 to return to the receiving groove 301. When disassembly is required, rotating the pusher 4 in the opposite direction removes the pushing force on the pressing blocks 5. Under the tension of the tension spring 403, the pressing blocks 5 quickly retract into the receiving groove 301, disengaging from the inner wall of the engaging through hole 201, thus separating the engaging protrusion 3 from the engaging through hole 201.

[0058] Two pressure blocks 5 are connected by a tension spring 403, allowing the pressure blocks 5 to press symmetrically against the inner wall of the snap-fit ​​hole 201, evenly distributing the force on the snap-fit ​​part and further improving the stability and reliability of the snap-fit. The tension spring 403 not only provides a restoring force for the pressure blocks 5, ensuring that the pressure blocks 5 can quickly retract during disassembly, but also absorbs a certain amount of vibration energy during transportation, reducing rigid collisions between the pressure blocks 5 and the inner wall of the snap-fit ​​hole 201, and extending the service life of the fixing device.

[0059] In some examples, the pusher 4 includes a rotating rod 401, which is rotatably disposed within the receiving groove 301 along the axial direction of the receiving groove 301; the pusher block 402 is disposed on the rotating rod 401, and the pusher block 402 is elliptical in shape. Rotating the pusher block 402 can push the pressing block 5 to move.

[0060] For example, such as Figure 6 and Figure 7 As shown, the pusher 4 includes a rotating rod 401 and a pusher block 402. The rotating rod 401 is rotatably mounted within the receiving groove 301 along its axial direction. Its two ends are connected to the inner wall of the receiving groove 301 via bearings, ensuring the rotating rod 401 can rotate flexibly. The pusher block 402 is fixedly mounted on the rotating rod 401 and is elliptical in shape. Its major axis is longer than the width of the receiving groove 301, and its minor axis is shorter than the width of the receiving groove 301. When the rotating rod 401 rotates, the pusher block 402 rotates accordingly, pushing the pressing block 5 within the through hole 303 through its elliptical contour.

[0061] When it is necessary to fix the snap-fit ​​protrusion 3 and the snap-fit ​​through hole 201, the rotating rod 401 is rotated using an external tool, so that the long axis of the push block 402 gradually moves towards the abutment block 5. As the push block 402 rotates, its elliptical contour gradually pushes the abutment block 5 outward from the through hole 303, so that the abutment block 5 presses against the inner wall of the snap-fit ​​through hole 201. When the push block 402 rotates until its long axis contacts the abutment block 5, the abutment block 5 experiences the greatest thrust, and the fixing effect of the snap-fit ​​part is optimal at this time. When disassembly is required, the rotating rod 401 is rotated in the opposite direction, and the long axis of the push block 402 gradually moves away from the abutment block 5, while the short axis contacts the abutment block 5. The thrust of the push block 402 on the abutment block 5 decreases, and the abutment block 5 retracts into the receiving groove 301 under the tension of the tension spring 403.

[0062] The elliptical push block 402 can smoothly push and reset the pressing block 5 by rotating the rotating rod 401. The operation is simple and convenient, and it can precisely control the movement distance of the pressing block 5, ensuring that the pressure between the pressing block 5 and the inner wall of the locking hole 201 is moderate. This structural design utilizes the principle of mechanical transmission, converting the rotation of the rotating rod 401 into the linear motion of the pressing block 5, which has high transmission efficiency and stability, and can reliably realize the fixing and releasing functions of the locking part.

[0063] In some examples, the bottom of the receiving groove 301 is provided with an opening 302, and a fixing plate 6 is provided at the opening 302. The bottom of the rotating rod 401 passes through the fixing plate 6 and extends to the outside of the fixing plate 6.

[0064] For example, such as Figure 8 As shown, the bottom of the receiving groove 301 has an opening 302, the size of which is adapted to the diameter of the rotating rod 401, ensuring that the rotating rod 401 can pass smoothly through the opening 302. A fixing plate 6 is fixedly installed at the opening 302. The fixing plate 6 is circular and has a through hole in its center. The bottom of the rotating rod 401 passes through the through hole and extends to the outside of the fixing plate 6. The function of the fixing plate 6 is to support the rotating rod 401 and ensure that the rotating rod 401 remains stable during rotation, without wobbling or deviating.

[0065] The bottom of the rotating rod 401 passes through the opening 302 at the bottom of the receiving groove 301 and the through hole of the fixing plate 6, extending to the outside of the fixing plate 6, facilitating external rotation of the rotating rod 401 by the operator. When it is necessary to rotate the pusher 4, the part of the rotating rod 401 located outside the fixing plate 6 can be rotated directly by hand or tool, causing the pusher block 402 to rotate within the receiving groove 301, thereby pushing or resetting the pressing block 5. The fixing plate 6 provides a stable support point for the rotating rod 401, making the rotation of the rotating rod 401 smoother and improving the convenience and reliability of operation.

[0066] The design of the bottom opening 302 of the receiving groove 301 and the fixing plate 6 extends the operating end of the rotating rod 401 to the outside of the fixing device, facilitating the operator's control of the pushing component 4. The locking and releasing operations of the snap-fit ​​part can be performed without disassembling the fixing device, greatly improving work efficiency. The supporting effect of the fixing plate 6 on the rotating rod 401 enhances the structural stability of the pushing component 4, preventing the rotating rod 401 from tilting or jamming due to uneven force during rotation, ensuring the normal operation of the entire snap-fit ​​structure.

[0067] In some examples, the bottom end of the rotating rod 401 is provided with a circular plate 7, and both the circular plate 7 and the fixing plate 6 are provided with through grooves. It also includes a pin 8, which is detachably set on the circular plate 7. The pin 8 can pass through the through grooves of the circular plate 7 and the fixing plate 6 to achieve the limiting and fixing of the rotating rod 401.

[0068] For example, such as Figure 8As shown, the bottom end of the rotating rod 401 is provided with a circular plate 7. The diameter of the circular plate 7 is larger than the diameter of the through hole in the fixed plate 6 to prevent the rotating rod 401 from falling off the fixed plate 6. Both the circular plate 7 and the fixed plate 6 are provided with through grooves, the shape and size of which are matched for inserting a pin 8. The pin 8 is cylindrical, and its length is greater than the sum of the thicknesses of the circular plate 7 and the fixed plate 6, so that it can pass through the through grooves of the circular plate 7 and the fixed plate 6 to achieve the limiting and fixing of the rotating rod 401.

[0069] Once the push block 402 rotates to the appropriate position, allowing the pressing block 5 to fully press against the inner wall of the snap-fit ​​hole 201, insert the pin 8 into the through slots of the circular plate 7 and the fixing plate 6. The pin 8 passes through both through slots, thereby restricting the rotation of the rotating rod 401 and keeping the push block 402 in its current position. This ensures that the pressing block 5 continuously applies pressure to the inner wall of the snap-fit ​​hole 201, achieving a secure fixation of the snap-fit ​​protrusion 3. When disassembly is required, first pull out the pin 8, then rotate the rotating rod 401 to reset the pressing block 5, allowing subsequent disassembly operations to proceed.

[0070] The pin 8 provides a reliable limiting and fixing device for the rotating rod 401, preventing the rotating rod 401 from rotating due to external forces such as vibration during transportation, which could cause the pressure block 5 to loosen, thus ensuring the long-term stability of the locking part. This limiting and fixing structure is simple, practical, and easy to operate, and can effectively improve the reliability of the fixing device in complex transportation environments, ensuring that the fiberglass membrane shell 100 is stably fixed throughout the entire transportation process.

[0071] In some examples, the membrane frame 1 is a plastic sheet.

[0072] For example, such as Figure 1 As shown, the membrane frame 1 is a plastic sheet made of lightweight, high-strength plastic materials such as polypropylene (PP) or polyethylene (PE). The plastic sheet has good corrosion resistance and impact resistance, enabling it to adapt to different transportation environments and resisting damage from factors such as humidity, acids, and alkalis. The surface of the membrane frame 1 is smooth, and the edges are chamfered to prevent scratches on the fiberglass membrane 100.

[0073] During production, plastic material is molded into a membrane housing frame 1 with a specific shape using injection molding. The placement grooves 101 at the top and bottom are formed directly during the molding process, requiring no further processing. In use, the fiberglass membrane housing 100 is placed in the placement grooves 101 of the membrane housing frame 1, and the rigidity and toughness of the plastic sheet support and fix the membrane housing. Because the density of plastic material is much lower than that of wood material, the weight of the entire fixing device is significantly reduced, facilitating handling and transportation.

[0074] The use of plastic panels completely solves the problems of high density and heavy weight associated with traditional wood materials, reducing the manpower and material consumption during handling and transportation, and lowering transportation costs. At the same time, plastic materials have excellent recyclability; compared to wood materials, the recycling process is simpler and cheaper, meeting environmental protection requirements, reducing resource waste, and lowering operating costs for businesses. Furthermore, the corrosion resistance and impact resistance of plastic materials allow the fixing devices to be used in harsher environments, extending their service life.

[0075] In some examples, the membrane frame 1 is a hollow structure.

[0076] For example, such as Figure 3 As shown, the membrane frame 1 has a hollow structure with multiple regularly distributed hollow holes or hollow areas inside. The shape of the hollow holes can be circular, square, or other polygonal. This hollow structure minimizes the weight of the membrane frame 1 while ensuring sufficient strength and rigidity. The hollow portion of the membrane frame 1 does not affect the structure and function of the placement slot 101, which maintains its complete arc-shaped structure and can stably support the fiberglass membrane frame 100.

[0077] When manufacturing the membrane housing frame 1, the hollow structure is directly formed through mold design, eliminating the need for additional weight-reduction processing steps. When the membrane housing frame 1 is placed on the circumferential surface of the fiberglass membrane housing 100, the hollow structure does not affect the fixing effect of the membrane housing, and the placement groove 101 can still fit tightly against the outer wall of the membrane housing. The presence of the hollow structure further reduces the overall weight of the fixing device, while increasing the air permeability of the device, reducing problems such as water vapor condensation on the surface of the membrane housing caused by environmental factors such as humidity during transportation.

[0078] The perforated structure design effectively reduces the weight of the fixing device without compromising the structural strength of the membrane frame 1, further reducing handling and transportation costs. Simultaneously, the perforated structure increases the device's heat dissipation and ventilation performance, helping to maintain a dry environment for the fiberglass membrane frame 100 during transportation and preventing damage due to moisture. Furthermore, the perforated structure saves raw materials, reduces manufacturing costs, and improves material utilization, aligning with the concepts of green manufacturing and sustainable development.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fixing device for producing fiberglass membrane shells, characterized in that, include: A membrane frame (1) is provided with a placement slot (101) on the top of the membrane frame (1) for placing a fiberglass membrane shell (100). A connecting plate (2) is provided on one side of the membrane frame (1). Several snap-fit ​​protrusions (3) and several snap-fit ​​through holes (201) are distributed at intervals on the connecting plate (2), and a snap-fit ​​through hole (201) is provided between two adjacent snap-fit ​​protrusions (3). When the two membrane frames (1) are fastened together, the snap-fit ​​protrusion (3) of one membrane frame (1) can be snapped into the snap-fit ​​through hole (201) of the other membrane frame (1).

2. The fixing device for producing fiberglass membrane shells according to claim 1, characterized in that, The bottom surface of the membrane frame (1) is also provided with a placement groove (101), and the placement groove (101) at the top of the membrane frame (1) has the same shape as the placement groove (101) at the bottom. The membrane frame (1) is used to be mounted on the outer circumferential surface of the fiberglass membrane shell (100).

3. The fixing device for producing fiberglass membrane shells according to claim 1, characterized in that, The connecting plate (2) and the membrane frame (1) are integrally formed. The thickness of the connecting plate (2) is half the thickness of the membrane frame (1). The height of the snap-fit ​​protrusion (3) protruding from the surface of the connecting plate (2) does not exceed half the thickness of the membrane frame (1).

4. The fixing device for producing fiberglass membrane shells according to claim 1, characterized in that, The snap-fit ​​protrusion (3) is provided with a through hole (303), the axial direction of the through hole (303) is perpendicular to the axial direction of the snap-fit ​​protrusion (3), and a receiving groove (301) is provided along the axial direction of the snap-fit ​​protrusion (3), the axial direction of the receiving groove (301) is perpendicular to the axial direction of the through hole (303) and they are interconnected; a sliding pressing block (5) is provided in the through hole (303), and a rotatable pushing member (4) is provided in the receiving groove (301). The pushing member (4) is used to push the pressing block (5) to the outside of the through hole (303) so that the pressing block (5) presses against the inner wall of the snap-fit ​​through hole (201).

5. The fixing device for producing fiberglass membrane shells according to claim 4, characterized in that, Two through holes (303) are provided and are symmetrically distributed about the receiving groove (301). Each through hole (303) is provided with a pressing block (5). A tension spring (403) is provided between the two pressing blocks (5). The tension spring (403) is used to pull the pressing block (5) into the receiving groove (301) so that the pressing block (5) abuts against the pusher (4).

6. The fixing device for producing fiberglass membrane shells according to claim 5, characterized in that, The pusher (4) includes: The rotating rod (401) is rotatably disposed within the receiving groove (301) along the axial direction of the receiving groove (301); A push block (402) is provided on the rotating rod (401). The push block (402) is elliptical in shape. Rotating the push block (402) can push the pressing block (5) to move.

7. The fixing device for producing fiberglass membrane shells according to claim 6, characterized in that, The receiving groove (301) has an opening (302) at the bottom, and a fixing plate (6) is provided at the opening (302). The bottom of the rotating rod (401) passes through the fixing plate (6) and extends to the outside of the fixing plate (6).

8. The fixing device for producing fiberglass membrane shells according to claim 7, characterized in that, The bottom end of the rotating rod (401) is provided with a circular plate (7), and both the circular plate (7) and the fixed plate (6) are provided with through grooves, and further includes: The pin (8) is detachably mounted on the circular plate (7). The pin (8) can pass through the through slot of the circular plate (7) and the fixing plate (6) to limit and fix the rotating rod (401).

9. The fixing device for producing fiberglass membrane shells according to claim 1, characterized in that, The membrane frame (1) is a plastic plate.

10. The fixing device for producing fiberglass membrane shells according to claim 1, characterized in that, The membrane frame (1) has a hollow structure.

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