Flood prevention water retaining belt

Abstract

The invention discloses a flood prevention water retaining belt which comprises a first base body, a second base body and a plurality of connecting pieces. In the unfolded state, the second base body is downwards attached to the first base body under the action of gravity, and correspondingly, the connecting piece is folded. In the winding and folding state, the second base body is also attached to the first base body, and correspondingly, the connecting piece is in the folding state. When the flood prevention water retaining belt in the unfolded state is used for retaining water, water enters the position between the first base body and the second base body, the second base body is jacked upwards, namely, the second base body swings around the long edge connected with the first base body, and the connecting piece is also unfolded. The more the water is, the larger the swing amplitude of the second base body is until the connecting piece is straightened, and when the connecting piece is in a tightened state, the angle between the first base body and the second base body is smaller than 90 degrees. Water is blocked through the second base body, after the connecting piece is straightened, a stable triangular structure is formed among the first base body, the second base body and the connecting piece, and water blocking is guaranteed.

Description

Technical Field

[0001] The invention relates to flood prevention materials, in particular to a flood prevention water retaining belt. Background Art

[0002] Water retaining belt is a kind of flood prevention material. As the name implies, its function is to block water and prevent water from entering the corresponding area. At present, sandbags are a common type of water retaining belt. They have a good water retaining effect, but they are heavy, inconvenient to move and carry, and they take up a relatively large space when not in use. Correspondingly, there are inflatable water retaining belts, which can be folded up when not inflated, making them convenient to move and carry. They also take up less space when not in use, but their water retaining effect is relatively general and they need to be checked. If there is a leak, it will affect normal use. It can be seen that the current water retaining belts still have the problem of not being able to take into account the following two issues: 1. Having a good water retaining effect; 2. Being able to be folded up for easy movement, carrying and placement. Summary of the invention

[0003] The present application provides a flood prevention water retaining belt, which can solve the problems raised in the background technology.

[0004] In the present application, a flood control water retaining belt is provided, which can be switched between two states of winding and spreading, including: The first substrate is in a rectangular or fan-shaped shape in an unfolded state; A second substrate, having the same shape as the first substrate; covering the first substrate, with the long side of the first side connected to the long side of the first side of the first substrate; A plurality of foldable connecting sheets are connected to the top surface of the first substrate on one side and to the bottom surface of the second substrate on the other side; when the connecting sheets are in a tightened state, the angle between the first substrate and the second substrate is less than 90 degrees.

[0005] In some embodiments, for the first substrate, a first connecting portion is provided on the short side of the first side, and a second connecting portion matching the first connecting portion is provided on the short side of the second side; for the second substrate, a third connecting portion is provided on the short side of the first side, and a fourth connecting portion matching the third connecting portion is provided on the short side of the second side.

[0006] In some embodiments, the first connection portion, the second connection portion, the third connection portion and the fourth connection portion are Velcro.

[0007] In some embodiments, the first connection and the fourth connection part are the same, which are a first Velcro connected on both sides; the second connection and the third connection part are the same, which are a second Velcro connected on two inner sides.

[0008] In some embodiments, a plurality of anti-slip portions are disposed on the bottom surface of the first substrate.

[0009] In some embodiments, the anti-slip portion includes: a sleeve portion connected to the bottom surface of the first substrate and an insert portion inserted into the sleeve portion.

[0010] In some embodiments, a mesh belt is connected to the first substrate at a position close to the long side of the second side; the mesh belt and the first substrate form a plurality of interlayers along the long side; and weight plates are built into all or part of the interlayers.

[0011] In some embodiments, a plurality of connection belts are further included to keep the flood control water retaining belt in a rolled-up state, and one end of the connection belt is connected to the bottom surface of the first substrate.

[0012] In summary, in the present application, a flood-prevention water retaining belt comprises a first substrate, a second substrate and a plurality of connecting pieces. In the spread-out state, the second substrate is adhered downward to the first substrate under the action of gravity, and accordingly, the connecting piece is folded up. In the rolled-up state, the second substrate is also adhered to the first substrate, and accordingly, the connecting piece is in a folded state. When the flood-prevention water retaining belt in the spread-out state is used to retain water, water enters between the first substrate and the second substrate, and lifts the second substrate upward, that is, the second substrate swings around the long side connected to the first substrate, and the connecting piece also stretches out. As the amount of water increases, the amplitude of the swing of the second substrate increases, until the connecting piece is stretched straight, and when the connecting piece is in a taut state, the angle between the first substrate and the second substrate is less than 90 degrees. The water is blocked by the second substrate, and after the connecting piece is stretched straight, a stable triangular structure is formed between the first substrate, the second substrate and the connecting piece to ensure water blocking. The beneficial effect is that the water-blocking effect can be ensured while the device can be rolled up and folded up, so that it is more convenient to place and carry when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0014] Figure 1 It is a schematic diagram of the present application when the connecting piece is in a tensioned state; Figure 2 It is a schematic diagram of the present application when the connecting piece is in a folded state; Figure 3 is a schematic diagram of a first connection portion and a third connection portion; Figure 4 is a schematic diagram of the second connecting portion and the fourth connecting portion; Figure 5 It is a schematic diagram of the present application in a rolled-up state.

[0015] In the figure, 1. first base; 1a. first connecting part; 1b. second connecting part; 1c. anti-slip part; 1c1. sleeve part; 1c2. insert part; 1d. mesh belt; 1d1. weight plate; 1e. connecting belt; 2. Second base; 2a. Third connecting portion; 2b. Fourth connecting portion; 3. Connecting piece; 3a. Crease. DETAILED DESCRIPTION

[0016] The following is further explained in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] See also Figure 1 , Figure 2 and Figure 5 A flood control water retaining belt can be switched between two states: rolled up and spread out. That is, when not in use, the flood control water retaining belt can be kept in the rolled up state; when needed, the flood control water retaining belt is spread out and switched to the spread out state.

[0018] The flood prevention water retaining belt comprises a first base body 1 , a second base body 2 and a plurality of connecting pieces 3 .

[0019] In the unfolded state, the first substrate 1 is rectangular or fan-shaped. For these two shapes, they are connected by four sides, two opposite sides are long sides (for a rectangle, the two long sides are long sides; for a fan-shaped, the inner arc line and the outer arc line are long sides), and the other two opposite sides are short sides. Rolling up means rolling up the long sides.

[0020] The second substrate 2 has the same shape as the first substrate 1 and covers the first substrate 1. The long side of the first side of the second substrate 2 is connected to the long side of the first side of the first substrate 1, and the specific connection method can be suturing. More specifically, if the first substrate 1 is a rectangle, then the second substrate 2 is also a rectangle, and the long sides of the two are equal, and the short sides can be equal or the second substrate 2 is smaller; if the first substrate 1 is a fan ring, then the second substrate 2 is also a fan ring, and at least one of the inner arc line and the outer arc line of the two is equal as the long side for connection, and the short sides can be equal or the second substrate 2 is smaller. Preferably, it is more appropriate that the short side of the second substrate 2 is smaller than the first substrate 1.

[0021] The connecting piece 3 is foldable. More specifically, the connecting piece 3 can be two pieces of woven fabrics sewn together, and a fold 3a is formed at the sewing position, so that the connecting piece 3 can be naturally folded along the fold 3a.

[0022] One side of the plurality of connection sheets 3 is connected to the top surface of the first substrate 1 , and the other side is connected to the bottom surface of the second substrate 2 .

[0023] In the spread state, the second substrate 2 is attached to the first substrate 1 under the action of gravity, and the connecting sheet 3 is folded accordingly. In the rolled and folded state, the second substrate 2 is also attached to the first substrate 1, and the connecting sheet 3 is folded accordingly.

[0024] See also Figure 1 When the flood-proof water retaining belt in the spread-out state is used to retain water, water enters between the first substrate 1 and the second substrate 2, and pushes the second substrate 2 upward, that is, the second substrate 2 swings around the long side connected to the first substrate 1, and the connecting piece 3 also stretches out. As the amount of water increases, the swing amplitude of the second substrate 2 increases, until the connecting piece 3 is stretched straight. When the connecting piece 3 is stretched tight, the angle between the first substrate 1 and the second substrate 2 is less than 90 degrees. The water is blocked by the second substrate 2. After the connecting piece 3 is stretched straight, a stable triangular structure is formed between the first substrate 1, the second substrate 2 and the connecting piece 3 to ensure water blocking.

[0025] In some embodiments, for the first substrate 1, a first connection portion 1a may be provided on the short side of the first side, and a second connection portion 1b matching the first connection portion 1a may be provided on the short side of the second side. For the second substrate 2, a third connection portion 2a is provided on the short side of the first side, and a fourth connection portion 2b matching the third connection portion 2a is provided on the short side of the second side.

[0026] By connecting the first connecting portion 1a and the second connecting portion 1b and connecting the third connecting portion 2a and the fourth connecting portion 2b, two or more flood control water retaining belts can be connected for use.

[0027] In some embodiments, the first connection part 1a, the second connection part 1b, the third connection part 2a and the fourth connection part 2b can be Velcro, snap fasteners, zippers, etc. Velcro is used to connect and separate two or more flood-proof water retaining belts most conveniently.

[0028] See 3 and Figure 4 In some embodiments, based on the use of Velcro, the first connection part 1a and the fourth connection part 2b are the same, and can be a first Velcro connected on both sides; the second connection part 1b and the third connection part 2a are the same, and can be two second Velcros connected on the inner sides. That is, for the connection between the first connection part 1a and the second connection part 1b and the connection between the third connection part 2a and the fourth connection part 2b, the two second Velcros are respectively connected to the two sides of the first Velcro.

[0029] In some embodiments, the bottom surface of the first substrate 1 may be provided with a plurality of anti-skid portions 1c to increase the friction between the first substrate 1 and the ground, so that the flood control water retaining belt is less likely to move relative to the ground after being impacted by water during the water retaining process. More specifically, a pattern may be designed on the bottom surface of the first substrate 1 to achieve an anti-skid effect.

[0030] See also Figure 5 In some embodiments, the anti-slip portion 1c may include a sleeve portion 1c1 connected to the bottom surface of the first substrate 1 and an insert portion 1c2 inserted into the sleeve portion 1c1. More specifically, the sleeve portion 1c1 may be a piece of woven cloth rolled into a sleeve, and the overlapping edge portions on both sides are sewn and connected to the first substrate 1. The insert portion 1c2 may be made of rubber and can be directly replaced after being greatly deformed or damaged.

[0031] See also Figure 1 and Figure 3 In some embodiments, a mesh belt 1d is further connected to the long side of the first substrate 1 near the second side. The mesh belt 1d and the first substrate 1 form multiple interlayers along the long side. More specifically, a suture can be used to connect the mesh belt 1d to the first substrate 1. The suture forms multiple rectangles on the mesh belt 1d, and each rectangle forms a corresponding interlayer. Each interlayer has a built-in weight plate 1d1, that is, the weight plate 1d1 is first placed on the first substrate 1, and then the mesh belt 1d is laid on it. Then, the mesh belt 1d is connected to the first substrate 1 using a suture, and a rectangle is sewn around each weight plate 1d1.

[0032] If the first substrate 1 is rectangular, then the mesh belt 1d is also rectangular, and the above-mentioned interlayers are arranged along the long side of the first substrate 1. If the first substrate 1 is fan-shaped, then the mesh belt 1d is also fan-shaped, and the above-mentioned interlayers are arranged in a circular array around the center corresponding to the first substrate 1.

[0033] The flood-proof water retaining belt in the unfolded state is used to retain water, and water first passes through the long side of the first base 1 close to the second side, and then enters between the first base 1 and the second base 2. With the addition of the weight plate 1d1, the long side of the first base 1 close to the second side is more stably attached to the ground, and water is more likely to pass through the long side of the first base 1 close to the second side, preventing the water from lifting this side.

[0034] Furthermore, the weight plate 1d1 is also provided with a bend, the bend position is raised toward the side of the mesh belt 1d, and the bend fold 3a is along the direction of the long side of the first substrate 1.

[0035] See also Figure 1 and Figure 5 In some embodiments, the flood control water retaining belt further comprises a plurality of connecting belts 1e for keeping the flood control water retaining belt in a rolled and gathered state, and one end of the connecting belt 1e is connected to the bottom surface of the first substrate 1. Matching Velcro can be connected at both ends of the connecting belt 1e.

Claims

1. A flood control water retaining belt, characterized in that: It can switch between two states: winding and unfolding, including: The first substrate (1) is in a rectangular or fan-shaped shape when in an unfolded state; A second substrate (2) having the same appearance as the first substrate (1); covering the first substrate (1), with the long side of the first side connected to the long side of the first side of the first substrate (1); A plurality of foldable connecting sheets (3), one side of which is connected to the top surface of the first substrate (1) and the other side of which is connected to the bottom surface of the second substrate (2); when the connecting sheets (3) are in a taut state, the angle between the first substrate (1) and the second substrate (2) is less than 90 degrees.

2. A flood control water retaining belt according to claim 1, characterized in that: For the first substrate (1), a first connecting portion (1a) is arranged on the short side of the first side, and a second connecting portion (1b) matching the first connecting portion (1a) is arranged on the short side of the second side; for the second substrate (2), a third connecting portion (2a) is arranged on the short side of the first side, and a fourth connecting portion (2b) matching the third connecting portion (2a) is arranged on the short side of the second side.

3. A flood prevention water retaining belt according to claim 2, characterized in that: The first connecting part (1a), the second connecting part (1b), the third connecting part (2a) and the fourth connecting part (2b) are Velcro.

4. A flood prevention water retaining belt according to claim 3, characterized in that: The first connection and the fourth connection part (2b) are the same, and are a first Velcro tape connected on both sides; the second connection and the third connection part (2a) are the same, and are a second Velcro tape connected on two inner sides.

5. The flood control water retaining belt according to claim 1, characterized in that: The bottom surface of the first substrate (1) is provided with a plurality of anti-slip portions (1c).

6. A flood prevention water retaining belt according to claim 5, characterized in that: The anti-slip portion (1c) comprises: a sleeve portion (1c1) connected to the bottom surface of the first base body (1) and an insert portion (1c2) inserted into the sleeve portion (1c1).

7. The flood control water retaining belt according to claim 1, characterized in that: A mesh belt (1d) is also connected to the first base body (1) at a position close to the long side of the second side; the mesh belt (1d) and the first base body (1) form a plurality of interlayers along the long side; and all or part of the interlayers are built with weight plates (1d1).

8. The flood control water retaining belt according to claim 1, characterized in that: It also comprises a plurality of connection belts (1e) for keeping the flood control water retaining belt in a rolled-up state, and one end of the connection belt (1e) is connected to the bottom surface of the first substrate (1).

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