Salt field plastic tarpaulin traction rod and salt field plastic tarpaulin winding and unwinding equipment

CN224848750UActive Publication Date: 2026-10-13ZHUZHOU CHINA RAILWAY ELECTRICAL MATERIALS CO LTD +1
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Patent Information

Application Number
CN202522248177.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-10-13
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

[0004]本实用新型提供了一种盐田塑苫牵引杆及盐田塑苫收放设备,以解决现有技术存在的利用竹竿牵引杆则因竹子模量低在牵引时容易变形而采用金属牵引杆笨重现场不易安装、上辊还会在牵膜时因为刚性太大把膜扯破且极易被盐水腐蚀的技术问题

Benefits of technology

本牵引杆用于塑苫牵扯导向,本牵引杆通过设置中空结构的杆体使杆体为中空结构进而形成有内腔,于空腔内设置支撑结构进一步加强杆体的结构强度使其具有较轻的重量同时增强抗变形能力防止变形导致塑苫扯破,于空腔内杆体的内壁和支撑结构之间设置填充结构如填充发泡材料使杆体能够漂浮于盐池上,进而无需额外的漂浮装置进行辅助,整体结构更为精简、美观;通过于杆体的侧沿设置卡槽结构与塑苫薄膜配合,通过钢丝卡箍缠绕塑苫薄膜后放入卡槽结构内即可紧固连接,相较于现有的钉入塑苫薄膜的紧膜方式更为方便快捷,且不会损伤、破坏塑苫薄膜;本牵引杆实现具有较轻的重量具有足够的抗变形能力防止塑苫扯破,无需借助漂浮装置进行辅助即可漂浮于盐池,结构精简、外观美观,与塑苫薄膜连接更为方便快捷并降低破损风险。

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Abstract

The utility model discloses a kind of salt field plastic tarpaulin traction rod and salt field plastic tarpaulin equipment, comprising: stem, stem is hollow structure and is formed with inner cavity, the first side of stem is along with the clamping groove structure for being used to cooperate and connect with plastic tarpaulin film arrangement;Fill structure, for filling in the inner cavity of stem to make that traction rod can float on salt pond;Support structure, for being arranged in the inner cavity of stem and being supported on the inner wall of stem.This traction rod is used for plastic tarpaulin traction guide, this traction rod is hollow structure by setting the stem of hollow structure, stem is hollow structure and is formed with inner cavity, support structure is arranged in cavity, further strengthen the structural strength of stem so that it has lighter weight while enhancing deformation resistance to prevent deformation leading to plastic tarpaulin tear, fill structure such as filling foamed material is arranged between the inner wall of stem and support structure in cavity, so that stem can float on salt pond, and then additional floating device is not needed to assist, overall structure is more simple, beautiful.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular, to a traction rod for salt field plastic tarpaulins. Furthermore, this utility model also relates to a salt field plastic tarpaulin deployment and retraction device including the aforementioned traction rod. Background Technology

[0002] Before rainfall, sea salt drying ponds need to be covered with plastic tarpaulins to isolate rainwater from the brine surface and allow it to drain out of the pond at any time. This prevents rainwater from diluting the saturated brine and dissolving the salt residue. After the rain, removing the plastic tarpaulins allows salt crystallization to resume quickly. This method is widely used in salt fields.

[0003] The covering of plastic tarpaulins requires the use of traction rods for pulling and guiding. Current technologies for salt ponds use bamboo or metal traction rods, controlled manually or mechanically. Since salt ponds are 60 to 120 meters wide, bamboo traction rods are prone to deformation during traction due to the low modulus of bamboo, causing excessive deformation and potential tearing of the plastic tarpaulin film. This leads to arching when the tarpaulin film is pulled back, requiring replacement every few years after being soaked in the brine. Metal traction rods are heavy, difficult to install on-site, and prone to tearing the film due to excessive rigidity during traction. Furthermore, metal traction rods are easily corroded by brine. Utility Model Content

[0004] This utility model provides a traction rod for salt field plastic film and a salt field plastic film loading and unloading device to solve the technical problems of existing technologies, such as the use of bamboo traction rods which are prone to deformation during traction due to the low modulus of bamboo, the use of metal traction rods which are cumbersome and difficult to install on site, and the upper rollers which can tear the film during film pulling due to excessive rigidity and are easily corroded by salt water.

[0005] According to one aspect of the present invention, a traction rod for a plastic tarpaulin covering in salt fields is provided, comprising: The rod body is constructed as a hollow structure, thus forming an inner cavity, and a slot structure for connecting with a plastic film is provided along the first side of the rod body; A filling structure is used to fill the inner cavity of the rod body so that the traction rod can float on the salt pond; A support structure is provided within the inner cavity of the rod and supports the inner wall of the rod.

[0006] As a further improvement to the above technical solution, the cross-section of the rod is rectangular, and the traction rod also includes a rotating connector for connecting to the two rods respectively so that the traction rod is constructed in a folding structure.

[0007] As a further improvement to the above technical solution, the traction rod also includes a connecting assembly for connecting the two rods along the length direction so that the length of the traction rod matches the width of the salt pond.

[0008] As a further improvement to the above technical solution, the connecting assembly includes a connecting profile with a concave cross-section and connecting plates respectively connected to the two connecting profiles; the two side surfaces of the connecting profile and the outer wall of the end of the rod are respectively provided with connecting holes for passing bolts.

[0009] As a further improvement to the above technical solution, the support structure includes multiple support rods arranged at a preset angle within the inner cavity, with the two ends of the support rods respectively supported on the inner walls of the first and second side edges of the rod body.

[0010] As a further improvement to the above technical solution, a transverse groove is provided on one side surface of the rod along the length direction for the support rod to pass through.

[0011] As a further improvement to the above technical solution, an installation structure is provided on the first side edge of the rod. The cross-section of the installation structure is an isosceles trapezoid with the first side edge of the rod as the long side of the trapezoid. The surface of the short side of the trapezoid of the installation structure is grooved along the length of the rod to form the slot structure.

[0012] As a further improvement to the above technical solution, the end of the traction rod is provided with an elastic side wheel for correcting the traction direction of the traction rod.

[0013] As a further improvement to the above technical solution, the rod body is a fiber composite material rod body.

[0014] According to another aspect of the present invention, a salt field plastic tarpaulin deployment and retraction device is also provided, which includes the aforementioned salt field plastic tarpaulin traction rod.

[0015] This utility model has the following beneficial effects: This traction rod is used for guiding and pulling plastic tarpaulins. It features a hollow rod body with an internal cavity. A supporting structure within this cavity further strengthens the rod, resulting in a lighter weight and enhanced resistance to deformation, preventing the tarpaulin from tearing. A filling structure, such as foam material, is placed between the inner wall of the rod and the supporting structure within the cavity, allowing the rod to float on the salt pond without the need for additional flotation devices. The overall structure is more streamlined and aesthetically pleasing. A slotted structure along the side of the rod engages with the plastic tarpaulin film. The film is secured by wrapping it with steel wire clamps and inserting it into the slot. This method is more convenient and faster than existing methods of nailing the film in, and it avoids damaging the film. This traction rod achieves a lightweight design with sufficient resistance to deformation to prevent tearing, allowing it to float on the salt pond without the need for flotation devices. Its streamlined structure, attractive appearance, and convenient and quick connection to the plastic tarpaulin film reduce the risk of breakage.

[0016] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the traction rod according to a preferred embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the traction rod according to a preferred embodiment of the present invention. Figure 2 ; Figure 3 This is a partial structural diagram of the traction rod according to a preferred embodiment of the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of the traction rod according to a preferred embodiment of the present invention. Figure 2 ; Figure 5 This is a partial structural diagram of the traction rod according to a preferred embodiment of the present invention. Figure 3 ; Figure 6 This is a schematic cross-sectional view of the rod body according to a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a support rod according to a preferred embodiment of the present invention; Figure 8 This is a schematic diagram of the connection component of a preferred embodiment of the present invention.

[0018] Legend: 100, Side wheel; 200, Rod body; 201, Inner cavity; 202, Slot structure; 203, Horizontal groove; 300, Filling structure; 400, Support rod; 500, Bolt; 600, Rotating connector; 700, Connecting assembly; 701, Connecting profile; 702, Connecting plate. Detailed Implementation

[0019] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0020] Figure 1 This is a schematic diagram of the structure of the traction rod according to a preferred embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the traction rod according to a preferred embodiment of the present invention. Figure 2 ; Figure 3 This is a partial structural diagram of the traction rod according to a preferred embodiment of the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of the traction rod according to a preferred embodiment of the present invention. Figure 2 ; Figure 5 This is a partial structural diagram of the traction rod according to a preferred embodiment of the present invention. Figure 3 ; Figure 6 This is a schematic cross-sectional view of the rod body according to a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a support rod according to a preferred embodiment of the present invention; Figure 8 This is a schematic diagram of the connection component of a preferred embodiment of the present invention.

[0021] like Figures 1 to 8 As shown, the salt field plastic tarpaulin traction rod of this embodiment includes: The rod body 200 has a hollow structure, which forms an inner cavity 201. The first side edge of the rod body 200 is provided with a slot structure 202 for connecting with the plastic film. The filling structure 300 is used to fill the inner cavity 201 of the rod body 200 so that the traction rod can float on the salt pond; wherein, the filling structure 300 can be filled with foam material, specifically polyurethane foam material of the prior art can be used; A support structure is provided within the inner cavity 201 of the rod 200 and supports the inner wall of the rod 200.

[0022] Understandably, this traction rod is used for guiding and pulling plastic tarpaulins. The traction rod features a hollow rod body 200, creating an inner cavity 201. A support structure within this cavity further strengthens the rod body 200, resulting in a lighter weight and enhanced resistance to deformation, preventing the plastic tarpaulin from tearing. A filling structure 300, such as foam material, is placed between the inner wall of the rod body 200 and the support structure within the cavity, allowing the rod body 200 to float on the salt pond without requiring additional flotation devices. The overall structure... More streamlined and aesthetically pleasing; by setting a slot structure 202 on the side edge of the rod body 200 to cooperate with the plastic tarpaulin, the plastic tarpaulin can be securely connected by wrapping the steel wire clamp around it and placing it into the slot structure 202. Compared with the existing method of nailing the plastic tarpaulin, this method is more convenient and faster, and will not damage or destroy the plastic tarpaulin. This traction rod has a light weight and sufficient resistance to deformation to prevent the plastic tarpaulin from tearing. It can float in the salt pond without the need for a floating device. The structure is streamlined and the appearance is beautiful. It is more convenient and faster to connect with the plastic tarpaulin and reduces the risk of damage.

[0023] In some preferred embodiments, such as Figure 4 and Figure 6 As shown, the cross-section of the rod 200 is rectangular. The traction rod also includes a rotating connector 600, which is used to connect to the two rods 200 respectively so that the traction rod is constructed in a folding structure. It can be understood that the rotating connector 600 can be a hinge, with the two hinges connected to one side surface of the traction rod near the second side edge, so that the two rods 200 are symmetrically distributed. By constructing the traction rod in a folding structure, the deformation resistance of the traction rod can be further improved, preventing the plastic film from being torn. On the other hand, when the plastic film is retracted, this traction rod can be rolled onto the film roller, thereby preventing the traction rod area from obstructing the salt drying area of ​​the salt pond.

[0024] In some preferred embodiments, such as Figure 5 , Figure 7 and Figure 8 As shown, the traction rod also includes a connecting assembly 700, which is used to connect the two rods 200 along the length direction so that the length of the traction rod matches the width of the salt pond. It can be understood that the rods 200 can be set to a fixed length of various specifications to facilitate production and transportation. The actual application needs can be met by selecting the rods 200 to match the width of the salt pond.

[0025] In some preferred embodiments, such as Figure 5 and Figure 8As shown, the connecting assembly 700 includes a connecting profile 701 with a concave cross-section and connecting plates 702 respectively connected to the two connecting profiles 701; the two side surfaces of the connecting profile 701 and the outer wall of the end of the rod 200 are respectively provided with connecting holes for bolts 500 to pass through; it can be understood that by setting the concave connecting profile 701 and matching the size of the inner cavity 201, the connecting profiles 701 at both ends of the connecting assembly 700 are simultaneously embedded in the inner cavity 201 and respectively pressed against the upper and lower inner walls of the inner cavity 201. After adjusting the position to correspond to the position of the connecting hole, they can be connected and fastened by bolts 500. This connecting assembly 700 has a simple structure, good connection of the rod 200, and a stable structure after connection; among them, based on the salt pond application scenario, this bolt 500 adopts epoxy bolt 500.

[0026] In some preferred embodiments, such as Figure 3 , Figure 5 and Figure 7 As shown, the support structure includes multiple support rods 400 arranged at a preset angle within the inner cavity 201. The two ends of the support rods 400 are respectively supported on the inner walls of the first and second side edges of the rod body 200. It can be understood that the support rods 400 in this embodiment are arranged perpendicular to the length direction of the rod body 200 and are also arranged in an alternating manner, that is, vertically and diagonally, forming a truss structure, which effectively supports the inner wall of the rod body 200 and ensures that the structure of the rod body 200 is stable and not easily deformed.

[0027] In some preferred embodiments, such as Figure 3 and Figure 5 As shown, a transverse groove 203 is provided on one side surface of the rod 200 along the length direction for the support rod 400 to pass through. By providing the transverse groove 203 on one side surface of the rod 200, it can be understood that by providing the transverse groove 203, each support rod 400 can be inserted into the inner cavity 201 of the rod 200 through the transverse groove 203, and the angle and position of the support rod 400 can be adjusted to the matching installation position for installation and fixation through the transverse groove 203, making the operation more convenient. On the other hand, the foaming material can also be filled into the rod 200 through the transverse groove 203, making the operation more convenient.

[0028] In some preferred embodiments, such as Figure 6 As shown, a mounting structure is provided on the first side edge of the rod 200. The cross-section of the mounting structure is an isosceles trapezoid with the first side edge of the rod 200 as the long side of the trapezoid. The surface of the short side of the trapezoid of the mounting structure is slotted along the length direction of the rod 200 to form a slot structure 202.

[0029] In some preferred embodiments, such as Figures 1 to 4As shown, the end of the traction rod is provided with an elastic side wheel 100, which is used to correct the traction direction of the traction rod. Specifically, the elastic side wheel 100 can be a rubber wheel. If the traction rod is not in the correct direction when it is being pulled, the side wheel 100 can collide with the edge of the salt pond and then rebound and roll to correct the position.

[0030] In some preferred embodiments, the rod body 200 is a fiber composite material rod body 200, which makes it lighter than the metal structure and improves its corrosion resistance. It should be noted that the rod body 200, support structure, rotating connector 600 and connecting assembly 700 of this traction rod can all be made of fiber composite material, thereby effectively improving the overall corrosion resistance and reducing the overall weight. In other embodiments, the rod 200, the support structure, the rotating connector 600, and the connecting assembly 700 may also be metal structures such as steel structures.

[0031] On the other hand, a preferred embodiment of this utility model also provides a salt field plastic tarpaulin deployment and take-up device, which is based on the existing salt field plastic tarpaulin deployment and take-up device. It utilizes the aforementioned salt field plastic tarpaulin traction rod. This salt field plastic tarpaulin deployment and take-up device is used for deploying and taking up plastic tarpaulin film. Its traction rod has a hollow structure 200, which forms an inner cavity 201. A support structure is provided within the cavity to further strengthen the structural strength of the rod 200, making it lighter and enhancing its resistance to deformation, preventing the plastic tarpaulin from tearing. A filling structure 300, such as foam material, is provided between the inner wall of the rod 200 and the support structure within the cavity, allowing the rod 200 to float. Floating on the salt pond without the need for additional flotation devices, the overall structure is more streamlined and aesthetically pleasing. A slot structure 202 is provided on the side edge of the rod 200 to engage with the plastic tarpaulin. The plastic tarpaulin is secured by wrapping it with steel wire clamps and placing it into the slot structure 202. This method is more convenient and faster than existing methods of nailing the plastic tarpaulin in, and it avoids damage to the tarpaulin. This salt field plastic tarpaulin deployment and retrieval device, based on a traction rod, is lightweight yet possesses sufficient resistance to deformation to prevent tearing of the tarpaulin. It floats on the salt pond without the need for additional flotation devices, featuring a streamlined structure, attractive appearance, and easier and faster connection to the plastic tarpaulin while reducing the risk of breakage.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A traction rod for plastic tarpaulins in salt fields, characterized in that, include: The rod (200) is constructed as a hollow structure and thus forms an inner cavity (201). A slot structure (202) for cooperating and connecting with a plastic film is provided on the first side of the rod (200). A filling structure (300) is used to fill the cavity (201) of the rod body (200) so that the traction rod can float on the salt pond; A support structure is provided within the inner cavity (201) of the rod (200) and supported on the inner wall of the rod (200).

2. The salt field plastic tarpaulin traction rod according to claim 1, characterized in that, The cross-section of the rod (200) is rectangular. The traction rod also includes a rotating connector (600) for connecting to the two rods (200) respectively so that the traction rod is constructed in a folding structure.

3. The salt field plastic tarpaulin traction rod according to claim 1, characterized in that, The traction rod also includes a connecting assembly (700) for connecting the two rods (200) along the length direction so that the length of the traction rod matches the width of the salt pond.

4. The salt field plastic tarpaulin traction rod according to claim 3, characterized in that, The connecting assembly (700) includes a connecting profile (701) with a concave cross-section and a connecting plate (702) connected to the two connecting profiles (701) respectively; the two sides of the connecting profile (701) and the outer wall of the end of the rod (200) are respectively provided with connecting holes for passing through bolts (500).

5. The salt field plastic tarpaulin traction rod according to claim 1, characterized in that, The support structure includes multiple support rods (400) arranged at a preset angle within the inner cavity (201), with the two ends of the support rods (400) respectively supported on the inner walls of the first and second side edges of the rod body (200).

6. The salt field plastic tarpaulin traction rod according to claim 5, characterized in that, One side surface of the rod (200) is provided with a transverse groove (203) for the support rod (400) to pass through.

7. The salt field plastic tarpaulin traction rod according to claim 1, characterized in that, The first side edge of the rod (200) is provided with an installation structure. The cross-section of the installation structure is an isosceles trapezoid with the first side edge of the rod (200) as the long side of the trapezoid. The surface of the short side of the trapezoid of the installation structure is slotted along the length direction of the rod (200) to form the slot structure (202).

8. The salt field plastic tarpaulin traction rod according to claim 1, characterized in that, The end of the traction rod is provided with an elastic side wheel (100) for correcting the traction direction of the traction rod.

9. The salt field plastic tarpaulin traction rod according to any one of claims 1-8, characterized in that, The rod (200) is a fiber composite material rod (200).

10. A device for storing and taking in plastic tarpaulins used in salt fields, characterized in that, The application uses the salt field plastic tarpaulin traction rod as described in any one of claims 1-9.