Geotextile cutting device
By combining fixed and movable angle steel, the problems of cumbersome geotextile cutting and safety hazards are solved, achieving efficient and convenient cutting operations and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-08-04
Smart Images

Figure CN224590304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of geotextile cutting technology, and in particular to a geotextile cutting device. Background Technology
[0002] Geotextiles, as essential materials in civil engineering and hydraulic engineering, are widely used in seepage prevention, reinforcement, drainage, and protection. During construction, large rolls of geotextile need to be cut to length according to actual requirements. Currently, manual cutting is the primary method used on construction sites. This involves workers laying the geotextile flat on the ground and using cutting tools with a ruler to cut it. This traditional manual cutting method is cumbersome and complex, typically requiring multiple workers: one to straighten the geotextile, one to hold the ruler, and another to cut. The entire process is time-consuming, labor-intensive, and extremely inefficient. Furthermore, the use of sharp cutting tools and the prolonged bending or kneeling posture of workers pose significant safety hazards. This manual cutting method is particularly difficult to implement under adverse weather conditions such as strong winds and heavy rain, severely impacting construction progress. Utility Model Content
[0003] This utility model provides a geotextile cutting device that can cut geotextiles more efficiently and conveniently, while improving safety.
[0004] This utility model embodiment provides a geotextile cutting device, including: a roll-up support having side beams at both ends; a roll-up assembly disposed between the two side beams, the roll-up assembly including: a fixed angle steel fixedly connected between the side beams; and a movable angle steel rotatably disposed between the side beams, forming a gap between the movable angle steel and the fixed angle steel for the geotextile to pass through; wherein the movable angle steel has a first position and a second position, in the first position the gap between the movable angle steel and the fixed angle steel is used to clamp the geotextile, and in the second position the gap is increased for the unwinding of the geotextile.
[0005] In one possible implementation, the movable angle steel is rotatably connected to the side beam via a rotating connector, and the movable angle steel switches between a first position and a second position by rotation.
[0006] In one possible implementation, the rotating connector includes two U-shaped steel bars, the first end of each U-shaped steel bar being rotatably connected to the corresponding side beam, and the second end of each U-shaped steel bar being fixedly connected to the corresponding end of the movable angle steel.
[0007] In one possible implementation, both the movable angle steel and the fixed angle steel are right-angle profiles, with the movable angle steel located inside the fixed angle steel in the first position.
[0008] In one possible implementation, it also includes: a push rod, one end of which is hinged to a movable angle steel, and the other end of which is an operating end.
[0009] In one possible implementation, a support component is also included, disposed at the bottom of the unwinding support, for supporting the geotextile to be unwound.
[0010] In one possible implementation, the support component includes a support frame with an arc-shaped bearing groove, the extension direction of which is adapted to the unwinding direction of the geotextile.
[0011] In one possible implementation, a cutting member is also included, which is disposed at the output end of the fixed angle steel near the gap, and extends along the edge of the fixed angle steel.
[0012] In one possible implementation, the cutting component is a blade set on the straight edge of the output end of the fixed angle steel.
[0013] In one possible implementation, the cutting component is a cutting blade positioned at the output end of the fixed angle steel.
[0014] This utility model provides a geotextile cutting device that, through a cooperative structure of fixed and movable angle steel, can switch between two working states. In terms of unwinding, when the movable angle steel is in the second position, a large gap is formed between it and the fixed angle steel, facilitating smooth passage of the geotextile. The movable angle steel switches positions by rotation, resulting in a simple, reliable, and convenient structure that eliminates the need for complex drive mechanisms, significantly reducing manufacturing and maintenance costs. Simultaneously, the linear arrangement of the two angle steels provides excellent guidance for the geotextile, effectively preventing material shifting and wrinkling during unwinding. In terms of clamping, when the movable angle steel rotates to the first position, the precise gap formed with the fixed angle steel stably clamps the geotextile without the need for additional clamping mechanisms. This ensures clamping force while preventing damage to the geotextile, allowing for cutting directly from the clamped state. This achieves more efficient and convenient geotextile cutting while improving safety. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of a geotextile cutting device provided by this utility model.
[0017] Figure 2 This is a schematic diagram of the planar structure of a geotextile cutting device provided by this utility model.
[0018] Figure 3 This is a side view structural diagram of an unwinding bracket, unwinding assembly, and push rod provided by this utility model.
[0019] Figure 4 This is a schematic diagram of the structure of an unwinding support provided by this utility model when the movable angle steel is in the second position.
[0020] Figure 5 This is a schematic diagram of the structure of an unwinding support provided by this utility model when the movable angle steel is in the first position.
[0021] Figure 6 This is a schematic diagram of a structure for cutting clamped geotextile provided by this utility model.
[0022] Figure 7 This is a schematic diagram of another structure for cutting the clamped geotextile provided by this utility model.
[0023] Figure label: a. Geotextile; 1. Unwinding support; 11. Side beam; 2. Unwinding assembly; 21. Fixed angle steel; 22. Movable angle steel; 23. Gap; 3. Rotating connector; 31. U-shaped steel bar; 4. Push rod; 5. Support components; 51. Support frame; 52. Arc-shaped bearing groove; 6. Cutting components; 61. Blade; 62. Cutting knife. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] The following is combined Figure 1-7 This invention describes a geotextile cutting device provided in an embodiment of the present invention, comprising an unwinding support 1 and an unwinding assembly 2, wherein: The unwinding support 1 has side beams 11 at both ends.
[0026] The unwinding assembly 2 is disposed between two side beams 11. The unwinding assembly 2 includes: a fixed angle steel 21, which is fixedly connected between the side beams 11; and a movable angle steel 22, which is rotatably disposed between the side beams 11. A gap 23 is formed between the movable angle steel 22 and the fixed angle steel 21 for the geotextile to pass through. The movable angle steel 22 has a first position and a second position. In the first position, the gap 23 between the movable angle steel 22 and the fixed angle steel 21 is used to clamp the geotextile. In the second position, the gap 23 is increased for the unwinding of the geotextile.
[0027] Specifically, the unwinding bracket 1 can be placed on the ground, so that there is a certain height difference between the unwinding assembly 2 and the ground; the unwinding bracket 1 can also be fixed on the wall, so that there is a certain height difference between the unwinding assembly 2 and the ground.
[0028] This utility model discloses a geotextile cutting device. A novel geotextile unwinding and clamping mechanism is formed by combining a fixed angle steel 21 and a movable angle steel 22 between the two end beams 11 of the unwinding support 1. The movable angle steel 22 can switch between a first position and a second position. In the first position, the gap 23 formed with the fixed angle steel 21 clamps the geotextile; in the second position, the gap 23 increases to facilitate geotextile unwinding. The angle steel combination structure achieves stable clamping of the geotextile, avoiding the problems of easy wear and uneven pressure associated with traditional devices using rubber rollers or pressure rollers. Secondly, the linear contact method of the angle steel ensures clamping effectiveness while reducing damage to the geotextile. Thirdly, the two working positions of the movable angle steel 22 allow the same mechanism to perform both clamping and unwinding, simplifying the device structure and improving work efficiency. Finally, this structural design is low-cost, easy to maintain, and suitable for use in various engineering construction sites.
[0029] In the field of geotextile construction, traditional unwinding devices often use simple roller structures or simple support frames. These devices have many problems in actual use: First, they cannot effectively clamp the geotextile, which makes the material prone to displacement and wrinkling during unwinding. Second, the unwinding speed is difficult to control, which can easily cause the material to loosen or become over-tensioned. Third, they cannot reliably fix the geotextile when construction needs to be paused.
[0030] The solution provided by this utility model, through the cooperation of movable angle steel 22 and fixed angle steel 21, not only solves the above-mentioned problems, but also brings other significant advantages: due to the use of angle steel structure, the device has good strength and rigidity, and can maintain stable operation even in harsh construction environments; the edges of the angle steel play a good guiding role for the geotextile, ensuring the straightness of material transportation; the clamping structure formed by the cooperation of the two angle steels is evenly stressed and will not cause local damage to the geotextile; in addition, the processing technology of this structure design is simple and the assembly is convenient, which greatly reduces production and maintenance costs.
[0031] In some embodiments, the movable angle steel 22 is rotatably connected to the side beam 11 via the rotating connector 3, and the movable angle steel 22 switches between a first position and a second position by rotating.
[0032] This embodiment of the invention specifies the particular method by which the movable angle steel 22 is rotatably connected to the side beam 11 via the rotating connector 3, thereby achieving switching between a first position and a second position through rotation. Compared to linear sliding or other motion methods, the rotation method is simpler and more reliable, eliminating the need for complex guiding devices; the rotational motion allows for larger positional changes, ensuring a sufficiently large gap 23 during unwinding for smooth transport of the geotextile; the rotational connection structure experiences more uniform stress, reducing the likelihood of jamming and extending the device's service life; this rotation method is simple and intuitive to operate, allowing even non-professionals to quickly master its use, thus improving the device's practicality.
[0033] In some embodiments, the rotating connector 3 includes two U-shaped steel bars 31, the first end of each U-shaped steel bar 31 being rotatably connected to the corresponding side beam 11, and the second end of each U-shaped steel bar 31 being fixedly connected to the corresponding end of the movable angle steel 22.
[0034] This embodiment of the utility model specifically defines the rotating connector 3 as having a structure of two U-shaped steel bars 31. One end of each U-shaped steel bar 31 is rotatably connected to the side beam 11, and the other end is fixedly connected to the movable angle steel 22. The U-shaped steel bars 31 have a simple structure, low manufacturing cost, and sufficient strength and rigidity to withstand various stresses during the clamping and unwinding process of the geotextile. Secondly, the symmetrical arrangement of the two U-shaped steel bars 31 ensures the stability of the movable angle steel 22 during rotation, avoiding deformation or wear caused by eccentric force. Thirdly, the arc-shaped structure of the U-shaped steel bars 31 increases the buffering effect of the device, which can appropriately absorb impact force during operation, protecting equipment and materials. In addition, this connection method facilitates maintenance and replacement. When a component is damaged, it can be replaced individually without replacing the entire mechanism, reducing maintenance costs.
[0035] In some embodiments, both the movable angle steel 22 and the fixed angle steel 21 are right-angle profiles, and the movable angle steel 22 is located inside the fixed angle steel 21 in the first position.
[0036] This embodiment of the invention specifies that both the movable angle steel 22 and the fixed angle steel 21 are right-angled profiles, and the movable angle steel 22 is located inside the fixed angle steel 21 in the first position. The right-angled profile has two vertical surfaces, providing better support and guidance, making the geotextile conveying more stable. The design of the movable angle steel 22 being located inside the fixed angle steel 21 creates a stable clamping space in the clamping state, resulting in more uniform and reliable clamping force. This arrangement prevents the geotextile from shifting or wrinkling during conveying, improving cutting quality. The high standardization of the right-angled profile facilitates procurement and replacement, reducing equipment maintenance costs. This structural design also prevents dust and other debris from entering the clamping gap 23, extending the equipment's cleaning and maintenance cycle.
[0037] In related technologies, traditional pressure roller clamping devices often require precise control of the pressure. Excessive pressure will damage the geotextile, while insufficient pressure will prevent effective clamping.
[0038] The right-angle profile structure used in this embodiment achieves an ideal clamping effect through its geometric shape. When the movable angle steel 22 is located inside the fixed angle steel 21, a stable clamping space is formed. This spatial configuration has a self-locking function; that is, under the tension of the geotextile, the clamping force will automatically increase, but will not exceed the critical value that would damage the material. This adaptive clamping method based on structural design avoids the need for complex pressure control mechanisms in traditional solutions, significantly improving the reliability of the device. In addition, the two vertical surfaces of the right-angle profile can also prevent the geotextile from shifting in both the horizontal and vertical directions. This bidirectional positioning function cannot be achieved by other forms such as circular rollers.
[0039] In some embodiments, it further includes: a push rod 4, one end of which is hinged to the movable angle steel 22, and the other end is an operating end.
[0040] This embodiment of the invention adds a push rod 4 structure, one end of which is hinged to the movable angle steel 22, and the other end is the operating end. The push rod 4 provides a simple and effective operating mechanism, allowing the operator to easily control the rotation of the movable angle steel 22. Secondly, the hinged connection ensures that the push rod 4 can effectively transmit force in different positions, avoiding jamming. Thirdly, the design of the operating end allows the operator to maintain a safe distance during operation, improving operational safety. Furthermore, this mechanical transmission method requires no electricity, making it suitable for use in various working environments, especially on construction sites without power. Finally, the push rod 4 mechanism has a simple structure, is easy to maintain, and greatly reduces the operating cost of the equipment.
[0041] In some embodiments, the system further includes a support component 5 disposed at the bottom of the unwinding bracket 1 for supporting the geotextile to be unwound.
[0042] This embodiment of the invention adds a support component 5, which is installed at the bottom of the unwinding bracket 1 to support the geotextile to be unwound. The support component 5 provides stable support for the geotextile roll, preventing it from shifting or swaying during unwinding. Secondly, the bottom support design makes changing the geotextile roll more convenient, reducing the labor intensity of workers. Thirdly, this support method can adapt to geotextile rolls of different specifications, increasing the applicability of the device. Furthermore, the bottom support reduces the impact of the geotextile roll's weight on the overall structure of the equipment, extending its service life. Finally, this support method facilitates observation of the geotextile's unwinding status, helping to promptly identify and address any potential problems.
[0043] In some embodiments, the support component 5 includes a support frame 51, on which an arc-shaped bearing groove 52 is provided, the extending direction of the arc-shaped bearing groove 52 being adapted to the unwinding direction of the geotextile.
[0044] This embodiment of the invention specifically defines the support component 5 as including a support frame 51 and an arc-shaped bearing groove 52, wherein the extension direction of the arc-shaped bearing groove 52 is adapted to the unwinding direction of the geotextile. The arc-shaped bearing groove 52 matches the circular outer contour of the geotextile roll, providing a more stable support effect. Secondly, the arc-shaped design of the bearing groove 52 reduces the contact resistance between the geotextile roll and the support structure, making the unwinding process smoother. Thirdly, the design that the extension direction is adapted to the unwinding direction ensures that the geotextile always maintains the correct conveying direction, avoiding skewing and wrinkles. Furthermore, this structural design also has a self-centering function, which can automatically correct minor deviations in the geotextile roll, reducing the need for manual adjustment. Finally, the stress distribution of the arc-shaped structure is more uniform, extending the service life of the support component 5.
[0045] In some embodiments, the device further includes a cutting member 6 disposed at the output end of the fixed angle steel 21 near the gap 23, the cutting member 6 extending along the edge of the fixed angle steel 21.
[0046] This embodiment of the invention adds a cutting component 6, which is disposed at the output end of the fixed angle steel 21 near the gap 23 and extends along the edge of the fixed angle steel 21. The positional design of the cutting component 6 ensures that cutting is performed while the geotextile is clamped, improving cutting accuracy. Secondly, extending along the edge of the fixed angle steel 21 ensures that the cutting line is perpendicular to the geotextile conveying direction, guaranteeing the straightness of the cut edge. Thirdly, this structural design allows for convenient cutting operations during unwinding, improving work efficiency. Furthermore, placing the cutting component 6 on the fixed angle steel 21 avoids the need for a separate cutting table, simplifying the overall structure. Finally, this design provides effective support for the cutting tool with the fixed angle steel 21, improving cutting stability and safety.
[0047] Precise cutting is a crucial step in ensuring construction quality during geotextile construction. Traditional cutting methods typically require laying the geotextile on a flat surface and then manually cutting it with cutting tools. This method is not only inefficient but also makes it difficult to guarantee cutting accuracy. In this solution, the cutting component 6 is located at the output end of the fixed angle steel 21, realizing integrated operation of unwinding and cutting. This setup offers several advantages: First, because the cutting position is adjacent to the clamping area, the geotextile is under tension during cutting, ensuring flatness. Second, the edge of the fixed angle steel 21 provides a natural baseline for cutting, eliminating the need for additional marking procedures. Third, this setup allows the operator to complete the cutting operation while standing, improving working conditions and increasing construction efficiency. Furthermore, extending the cutting component 6 along the edge of the fixed angle steel 21 provides sufficient cutting length to accommodate geotextiles of different widths, increasing the applicability of the device.
[0048] In some embodiments, the cutting member 6 is a blade 61 provided on the straight edge of the output end of the fixed angle steel 21.
[0049] This embodiment of the invention defines the cutting component 6 as a blade 61 set on the straight edge of the output end of the fixed angle steel 21. By directly setting the blade 61 on the edge of the angle steel, structural integration is achieved, reducing the number of parts. Secondly, this design provides stable support for the cutting edge, ensuring cutting accuracy. Thirdly, the fixed blade 61 reduces movable parts, improving the reliability of the device. Furthermore, this structural design facilitates the replacement and maintenance of the blade 61, reducing maintenance costs. Finally, the straight-edge blade 61 can also serve as a guide for geotextile cutting, ensuring the straightness of the cutting line.
[0050] In some embodiments, the cutting member 6 is a cutting blade 62 disposed at the output end of the fixed angle steel 21.
[0051] This embodiment of the invention defines the cutting component 6 as a cutting blade 62 disposed at the output end of the fixed angle steel 21. The independent cutting blade 62 structure provides stronger cutting force, suitable for handling thicker or harder geotextile materials; secondly, different models of the cutting blade 62 can be selected as needed, increasing the applicability of the device; thirdly, this design facilitates adjustment of the position and angle of the cutting blade 62, optimizing the cutting effect; furthermore, the independent cutting blade 62 structure facilitates replacement and maintenance, extending the service life of the device; finally, this design scheme ensures cutting effect while also considering operational safety, reducing safety hazards.
[0052] This geotextile cutting device, through the cooperative structure of fixed and movable angle steel, can switch between two working states. In terms of unwinding, when the movable angle steel is in the second position, a larger gap is formed between it and the fixed angle steel, facilitating smooth passage of the geotextile. The movable angle steel switches positions by rotation, resulting in a simple, reliable, and convenient structure that eliminates the need for complex drive mechanisms, significantly reducing manufacturing and maintenance costs. Simultaneously, the linear arrangement of the two angle steels provides excellent guidance for the geotextile, effectively preventing material shifting and wrinkling during unwinding. In terms of clamping, when the movable angle steel rotates to the first position, the precise gap formed with the fixed angle steel stably clamps the geotextile without the need for additional clamping mechanisms. This ensures clamping force while preventing damage to the geotextile, allowing for cutting directly from the clamped state. This achieves more efficient and convenient geotextile cutting while improving safety.
[0053] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not 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. A geotextile cutting apparatus, characterized by, include: Unwinding support (1), the unwinding support (1) having side beams (11) at both ends; An unwinding assembly (2) is disposed between the two side beams (11), the unwinding assembly (2) comprising: Fixed angle steel (21) is fixedly connected between the side beams (11); Movable angle steel (22) is rotatably disposed between the side beams (11), and a gap (23) is formed between the movable angle steel (22) and the fixed angle steel (21) for the geotextile to pass through. The movable angle steel (22) has a first position and a second position. In the first position, the gap (23) between the movable angle steel (22) and the fixed angle steel (21) is used to clamp the geotextile. In the second position, the gap (23) is increased for the unwinding of the geotextile.
2. The geotextile cutting device according to claim 1, characterized in that, The movable angle steel (22) is rotatably connected to the side beam (11) via a rotating connector (3), and the movable angle steel (22) switches between the first position and the second position by rotating.
3. The geotextile cutting device according to claim 2, characterized in that, The rotating connector (3) includes: Two U-shaped steel bars (31), the first end of each U-shaped steel bar (31) is rotatably connected to the corresponding side beam (11), and the second end of each U-shaped steel bar (31) is fixedly connected to the corresponding end of the movable angle steel (22).
4. The geotextile cutting device according to claim 1, characterized in that, Both the movable angle steel (22) and the fixed angle steel (21) are right-angle profiles, and the movable angle steel (22) is located inside the fixed angle steel (21) when in the first position.
5. The geotextile cutting apparatus of claim 2, wherein, Also includes: Push rod (4), one end of which is hinged to the movable angle steel (22), and the other end is the operating end.
6. The geotextile cutting apparatus of any one of claims 1-5, wherein, Also includes: The support component (5) is located at the bottom of the unwinding bracket (1) and is used to support the geotextile to be unwound.
7. The geotextile cutting device according to claim 6, characterized in that, The support component (5) includes a support frame (51) with an arc-shaped bearing groove (52) provided on the support frame (51). The extension direction of the arc-shaped bearing groove (52) is adapted to the unwinding direction of the geotextile.
8. The geotextile cutting apparatus of any one of claims 1-5, wherein, Also includes: A cutting member (6) is disposed at the output end of the fixed angle steel (21) near the gap (23), and the cutting member (6) extends along the edge of the fixed angle steel (21).
9. The geotextile cutting device according to claim 8, characterized in that, The cutting component (6) is a blade (61) provided on the straight edge of the output end of the fixed angle steel (21).
10. The geotextile cutting device according to claim 8, characterized in that, The cutting component (6) is a cutting blade (62) located at the output end of the fixed angle steel (21).