JP2006144544A - Portable expansive weir - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable expansive weir which can be conveniently carried, quickly assembled, compactly folded and stored, and connected to other weirs with its connected total length made adjustable. <P>SOLUTION: A main body 2 of a portable expansive weir 1 comprises a flexible cylindrical body 3, a first coupling body 10 provided at one end 3a of the flexible cylindrical body 3 and a second coupling body 30 to be connected to the first coupling body 10, which is located at the other end 3b of the flexible cylindrical body 3. An air ventilating means 26 is made at least to one of the first coupling body 10 and the second coupling body 30. A water filling portion 20 is made to the first coupling body 10. A water drain 49 is also provided for the second coupling body 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a portable expansion weir that dams water overflowing from a levee, sewage, etc. in the event of a water disaster such as a flood.

  Traditionally, sandbags existed for use during water disasters during floods. Such sandbags are used by being piled up on roads and the like in order to dam the water overflowing from the dike and sewage.

  The conventional sandbags described above have a problem that many people are required to be stacked on the road, and it takes time and response to water disasters is slow. In addition, since a large amount of sandbags are required, there are problems that storage space is small and that carrying is inconvenient.

  The present invention has been devised in view of the above-mentioned problems, and can be easily carried with a small number of hands and can be quickly assembled with a small number of hands. Provides an unprecedented portable expansion weir that can be wrapped and folded, is compact and extremely convenient to store, and can be linked together and adjusted in length depending on the scale of the water disaster For the purpose.

In order to achieve the above object, the portable expansion weir according to the invention of claim 1 has the following means.
(A) The dam body has water tightness, and is provided at the other end of the flexible cylinder, the first connecting body provided at one end of the flexible cylinder, and the flexible cylinder. And a second coupling body coupled to the first coupling body.
(B) At least one of the first connector and the second connector is provided with air venting means.
(C) The first connector is provided with a water injection part or a water injection / drainage part.
(D) The second connector is provided with a drainage section or a pouring / drainage section.

In order to achieve the above object, the portable expansion weir according to the invention described in claim 2 has the following means in addition to the above means.
(A) The first connector is formed in a cylindrical shape, and a water injection part or a water injection / drainage part is provided in the axial center part.
(B) The second connector is formed in a cylindrical shape, and a drainage portion or a pouring / drainage portion is provided in the axial center portion.

In order to achieve the above object, the portable expansion weir according to the invention described in claim 3 has the following means in addition to the above means.
(B) The first connector is formed in a cylindrical shape, and a water injection part or a water injection / drainage part is provided on the peripheral surface part.
(B) The second connector is formed in a cylindrical shape, and a drainage portion or a pouring / drainage portion is provided in the axial center portion.

In order to achieve the above object, the portable expansion weir according to the invention described in claim 4 has the following means in addition to the above means.
(B) The first connector is formed in a cylindrical shape, and a water injection part or a water injection / drainage part is provided on the peripheral surface part.
(B) The second connector is formed in a cylindrical shape, and a drainage portion or a pouring / drainage portion is provided on the peripheral surface portion.

  In order to achieve the above object, the portable expansion weir according to the invention described in claim 5 is provided with air venting means on at least one peripheral surface portion of the first connection body or the second connection body.

In order to achieve the above object, the portable expansion weir according to the invention described in claim 6 has the following means in addition to the above means.
(A) The first connecting body is provided with a circular base, a protrusion provided at one of the bases, an engagement plate provided at the tip of the protrusion, and the other of the base, and is a flexible cylinder. It consists of the cylinder part which attaches one end of watertightly.
(B) The second connecting body is provided on one side of the circular base portion and the base, and is provided on the other side of the engaging groove portion that engages both side edges of the engaging plate of the first connecting body. It consists of the cylinder part which attaches the other end of a flexible cylinder to watertight.

  According to a seventh aspect of the present invention, in order to achieve the above object, the portable expansion weir is formed such that the width between the engagement plate and the engagement groove portion becomes narrower downward.

  Since the portable expansion weir according to claims 1 and 2 can wrap or fold a flexible cylinder, it can be made compact, and therefore it is very convenient to store and store, and it is carried by a small number of people. There is an effect that can be. In addition, it can be assembled simply by injecting water and inflating it, so it requires less work time, can respond quickly to water disasters, and can be easily cleared just by draining and folding, making it extremely convenient. effective. Moreover, since the length can be adjusted only by connecting the first connecting body to the second connecting body, there is an effect that it is possible to quickly cope with the scale of a water disaster.

  In addition to the above effects, the portable expansion weir according to claims 3 to 5 is provided with a water injection part or a water injection / drainage part on the peripheral surface part of the first connecting body, so that the portable expansion weirs are connected to each other. And there is an effect that water can be injected.

  In addition to the above-described effect, the portable expansion weir according to claim 6 can be easily constructed by simply engaging the engaging plate of the first connecting body with the engaging groove portion of the second connecting body. There is an effect that they can be connected to each other.

  In addition to the above effect, the portable expansion weir according to claim 7 is formed so that the width between the engagement plate and the engagement groove portion becomes narrower downward. There is an effect that the engagement groove portion of the second coupling body can be engaged firmly like a wedge.

  An embodiment of a portable expansion weir according to the present invention will be described with reference to FIGS. FIG. 1 is an overall perspective view of a portable expansion weir showing an embodiment of the present invention. FIG. 2 is a perspective view of the first connector. 3 is a side sectional view of FIG. FIG. 4 is a perspective view of the second connector. 5 is a side sectional view of FIG. FIG. 6 is a perspective view showing a connected state of the portable expansion weir according to the present invention. FIG. 7 is a perspective view showing a use state of the portable expansion weir according to the present invention. FIG. 8 is a front view of FIG. FIG. 9 is a front view showing a storage state of the portable expansion weir according to the present invention.

  FIG. 10 is a perspective view of a first coupling body of a portable expansion weir showing another embodiment of the present invention. 11 is a side sectional view of FIG. FIG. 12 is a perspective view of a second coupling body of a portable expansion weir showing another embodiment of the present invention. 13 is a side sectional view of FIG.

  The portable expansion weir 1 according to claim 1 has a weir body 2. The dam body 2 has water tightness, and includes a flexible cylinder 3, a first connecting body 10 provided at one end 3 a of the flexible cylinder 3, and the other end 3 b of the flexible cylinder 3. And a second connecting body 30 connected to the first connecting body 10. Air venting means 26 is provided on at least one of the first connector 10 or the second connector 30. The first connector 10 is provided with a water injection part 20 or a water injection / drainage part. The second connector 30 is provided with a drainage part 49 or a pouring / drainage part.

  In the portable expansion weir 1 according to claim 2, the first connecting body 10 is formed in a cylindrical shape, and a water injection portion 20 or a water injection / drainage portion is provided in an axial center portion. Moreover, the said 2nd coupling body 30 is formed in a cylindrical shape, and the drainage part 49 or the pouring / drainage part is provided in the axial center part.

  In the portable expansion weir 51 according to claim 3, the first connecting body 60 is formed in a cylindrical shape, and a water injection portion or a water injection / drainage portion 73 is provided on the peripheral surface portion 60a. Moreover, the said 2nd connection body 90 is formed in a cylindrical shape, and the drainage part 103 or the pouring / drainage part is provided in the axial center part.

  In the portable expansion weir 51 of the fourth aspect, the first coupling body 60 is formed in a cylindrical shape, and a water injection portion or a water injection / drainage portion 73 is provided on the peripheral surface portion 60a. Moreover, the said 2nd connection body 90 is formed in a cylindrical shape, and the drainage part or the pouring / drainage part is provided in the surrounding surface part.

  In the portable expansion weir 51 according to claim 5, air venting means 81, 110 are provided on at least one peripheral surface portion 60 a, 90 a of the first connecting body 60 or the second connecting body 90.

  The portable expansion weir 1 according to claim 6 is configured such that the first connecting body 10 includes a circular base portion 11, a projection portion 12 provided on one side of the base portion 11, and a tip provided on the tip of the projection portion 12. It consists of a plywood 13 and a cylindrical portion 15 which is provided on the other side of the base 11 and attaches one end 3a of the flexible cylindrical body 3 in a watertight manner. Further, the second connecting body 30 is provided on one of the circular base 31 and the base 31, and the engaging grooves 33a and 33b for engaging both side edges 13a and 13b of the engaging plate 13 of the first connecting body 10. And a cylindrical portion 35 which is provided on the other side of the base portion 31 and attaches the other end 3b of the flexible cylindrical body 3 in a watertight manner.

  The portable expansion weir 1 according to claim 7 is formed so that the width between the engagement plate 13 and the engagement groove portions 33a and 33b becomes narrower downward.

  Furthermore, the first embodiment of the portable expansion weir will be described in detail. The portable expansion weir 1 has a weir body 2. As shown in FIG. 1, the weir body 2 has water tightness, and includes a flexible cylindrical body 3, a first connecting body 10 provided at one end 3 a of the flexible cylindrical body 3, and flexibility. It consists of the 2nd connection body 30 connected with the 1st connection body 10 provided in the other end 3b of the cylinder 3. FIG. The flexible cylinder 3 is formed in a cylindrical shape from a flexible material. The flexible material is not particularly limited as long as the water tightness can be maintained, but in the present embodiment, the outer layer has a two-layer structure of polyester and the inner layer is urethane.

  As shown in FIGS. 2 and 3, the first coupling body 10 is formed in a cylindrical shape by a hard synthetic resin, and includes a circular base 11, a protrusion 12 provided on one surface 11 a of the base 11, and a protrusion The engaging plate 13 is provided at the tip of the portion 12, and the cylindrical portion 15 is provided on the other surface 11b of the base 11 and is attached to the one end 3a of the flexible cylindrical body 3 in a watertight manner. This cylindrical portion 15 is inserted into one end 3a of the flexible cylindrical body 3, and is attached to the one end 3a of the flexible cylindrical body 3 in a watertight manner by a known fastening metal fitting 18. The first connector 10 may be formed by bonding a plurality of components.

  A storage chamber 21 for storing a known check valve member 16 is formed in the central portion of the base portion 11 and the projection portion 12 of the first connecting body 10, and a water injection hole 19 is formed in the front portion of the check valve member 16. Is formed. A lock member 17 that removably locks the distal end 29 of the fire hose 28 is attached to the water injection hole 19 so as to be able to protrude and retract by being urged by the elastic member in the protruding direction. A water injection port 22 that communicates with the water injection hole 19 is formed on the front surface 10a of the first connector 10 with the axial center as a center. In addition, the water injection part 20 is formed by the water injection hole 19 and the water injection port 22.

  A substantially rectangular recess 23 is formed on the peripheral surface portion 10 b of the first connecting body 10, that is, on the upper portion of the projection 12 of the first connecting body 10, and the base 11 communicates with the inside of the recess 23 and the inside of the cylindrical portion 15. A through-hole 25 is formed. A known air valve 26 to be screwed from the recess 23 is provided in the through hole 25. This air valve 26 is an air vent means. The engagement plate 13 is configured such that the width between the left and right side edges 13a and 13b becomes narrower from the upper part toward the lower part.

  As shown in FIGS. 4 and 5, the second connecting body 30 is formed in a cylindrical shape by a hard synthetic resin, and is provided on the circular base portion 31 and one surface 31 a of the base portion 31. Engaging groove portions 33a, 33b that engage the left and right side edges 13a, 13b of the engaging plate 13 and a cylindrical portion that is provided on the other surface 31a of the base portion 31 and attaches the other end 3b of the flexible cylindrical body 3 in a watertight manner. 35. The cylindrical portion 35 is inserted into the other end 3b of the flexible cylindrical body 3, and is attached to the other end 3b of the flexible cylindrical body 3 in a watertight manner by known fastening members 18 and 18. The second connecting body 30 may be formed by bonding a plurality of components.

  A boss 36 projects from the other surface 31 b of the base 31 of the second connector 30. A drainage hole 38 is formed in the axial center of the boss 36 and the base 31, a female screw part 37 is formed in the drainage hole 38, and a plug 39 is provided in the female screw part 37 from the drainage port 40 formed in one surface 31 a. Screwed. A drainage portion 49 is formed by the drainage hole 38 and the drainage port 40.

  Arm portions 41 and 42 are formed on the left and right sides of one surface 31 a of the base portion 31, and engagement groove portions 33 a and 33 b are formed inside the arm portions 41 and 42. The width between the engaging groove portions 33a and 33b becomes narrower from the upper part toward the lower part. An elastic plate 43 made of urethane, synthetic rubber, or the like is attached to the lower part of the flexible cylindrical body 3, the first coupling body 10, and the second coupling body 30 with an adhesive.

  The portable expansion weir 1 has the above configuration and can be used as follows. The portable expansion weir 1 is a flexible tubular body in which the flexible tubular body 3 is wound around a reel (not shown) or folded as shown in FIG. 9 and the first coupling body 10 and the second coupling body 30 are folded. 3 is fastened by a fastening member 45 such as a string or a belt, the folded state is maintained, and the compact is stored and stored. The portable expansion weir 1 can be stacked in this folded state.

  When used, the portable expansion weir 1 is used as a set of three. The portable expansion weir 1 can be straightly stretched by carrying it to the place where there is a water disaster in the above-described folded state, removing the fastening member 45 and pulling the first connecting body 10. First, two portable expansion weirs 1 are arranged in parallel, and a belt 46 with a surface fastener is laid under them.

  When the tip 29 of the fire hose 28 is inserted into the water injection port 22 of the first connector 10, the check valve member 16 is pushed to open the valve member 16 a, and the tip 29 of the fire hose 28 is locked by the lock member 17. Water is poured from the tip 29 of the fire hose 28 by an engine pump (not shown) with the air valve 26 as an air vent means opened. When the flexible cylinder 3 expands and water comes out of the air valve 26 provided at the top, the engine pump is stopped and the air valve 26 is closed.

  When the lock member 17 is unlocked by the unlocking means 28a of the fire hose 28 and the tip 29 of the fire hose 28 is pulled out from the water inlet 22 of the first connecting body 10, the valve member 16a of the check valve member 16 is removed. Closed and the state where the flexible cylinder 3 is filled with water is maintained. On the two portable expansion weirs 1 filled with water, the portable expansion weir 1 which has not been poured is placed, and water is poured in the same manner as described above to fill the water.

  As shown in FIG. 7, a belt with a surface fastener 46 is wound around three portable expansion weirs 1 filled with water, and the surface fasteners 47 at both ends are connected and fixed. In this way, the water 48 can be quickly transported to a place where there is a water disaster, can be easily assembled, and the water 48 can be dammed as shown in FIG. Since the elastic plate 43 is provided in the lower part of the portable expansion weir 1, even if there are irregularities such as pebbles or dents on the ground, water does not leak from there.

  After use, when the hook-and-loop fastener belt 46 is removed and the plug 39 is removed from the female screw portion 37, the water filled in the flexible cylindrical body 3 is drained from the drainage portion 49. As shown in FIG. 9, the flexible cylinder 3 can be folded back to the original state and stored compactly in a storage place.

  When the length of the portable expansion weir 1 is insufficient, as shown in FIG. 6, the left and right side edges 13 a and 13 b of the engagement plate 13 of the first connecting body 10 are connected to another portable expansion weir 1. By engaging with the engaging grooves 33a and 33b of the second connecting body 30, another portable expansion weir 1 can be connected.

  Since the engagement plate 13 has a width between the left and right side edges 13a, 13b and a width between the engagement groove portions 33a, 33b becoming narrower from the top to the bottom, the engagement groove portion 33a is like a wedge. , 33b is inserted and engaged, and the weight of the filled water is also added, so that it is difficult to come off. In addition, since it is burdensome to connect after filling with water, it is desirable to connect before filling with water. Further, when the portable expansion weir 1 is connected, it is desirable to shift the connecting bodies 10 and 30 in the lower two rows and the upper one row in FIGS. 7 and 8 so as not to overlap (do not contact).

  Furthermore, the second embodiment of the portable expansion weir 51 will be described in detail. Since the connection body is different from the portable expansion weir 1, the connection body will be described. As shown in FIGS. 10 and 11, the first coupling body 60 is formed in a cylindrical shape with a hard synthetic resin, and has a circular base 61, a protrusion 62 provided on one surface 61 a of the base 61, and a protrusion An engaging plate 63 provided at the tip of the portion 62 and a cylindrical portion 65 provided on the other surface 61b of the base 61 and attached to the one end 3a of the flexible cylindrical body 3 in a watertight manner. The cylindrical portion 65 is inserted into one end 3 a of the flexible cylindrical body 3, and is attached to the one end 3 a of the flexible cylindrical body 3 with a known fastening metal fitting 18 in a watertight manner. The first coupling body 60 may be formed by bonding a plurality of components.

  The base 61 includes a circular side wall 66, a peripheral wall 67 provided around the side wall 66, and a base 69 provided at the tip of the peripheral wall 67, and a protrusion 62 is provided at the tip of the base 69. Yes. Mounting holes 66a and 69a are formed in the base 61, that is, the axial center of the side wall 66 and the base 69, and a known valve 70 is provided in the mounting holes 66a and 69a. An opening 71 is formed in the peripheral wall 67 of the base 61, and a valve handle 72 is inserted through the opening 71 so that the valve 70 can be opened and closed.

  A pour / drain port 75 is formed on the peripheral surface portion 60a of the first connecting body 60, that is, on the upper portion of the pedestal 69 and the protrusion 62, and the pouch / drain port 75 and the mounting hole 69a communicate with each other. A right-angle pouring / drainage channel 76 is formed. A plug-in type fitting 77 for the fire hose 28 is attached to the pouring / draining channel 76 near the pouring / drainage port 75. A pouring / draining portion 73 is formed by the pouring / drainage port 75 and the pouring / drainage channel 76.

  A substantially rectangular concave portion 78 is formed on the peripheral surface portion 60 a of the first coupling body 60, that is, on the upper portion of the base portion 61 of the first coupling body 60, and the inside of the concave portion 78 and the inside of the cylindrical portion 65 communicate with the side wall 66. A through hole 79 is formed. A pipe 80 is provided in the through hole 79, and a known air valve 81 that is screwed from the recess 78 is provided at the tip of the pipe 80. The air valve 81 is air venting means. The engagement plate 63 is configured such that the width between the left and right side edges 63a and 63b becomes narrower from the upper part toward the lower part.

  A cylinder 83 communicating with the mounting hole 66 a of the side wall 66 is attached to the other surface 61 b of the base 61. Reference numerals 85 and 85 denote reinforcing disks, in which a large hole 86 through which the cylinder 83 passes is formed at the center, and a small hole 87 through which the pipe 80 passes.

  As shown in FIGS. 12 and 13, the second coupling body 90 is formed in a cylindrical shape by a hard synthetic resin, and is provided on the circular base portion 91 and one surface 91 a of the base portion 91, and the first coupling body 60. Engaging groove portions 93a and 93b for engaging the left and right side edges 63a and 63b of the engaging plate 63, and a cylindrical portion that is provided on the other surface 91b of the base portion 91 and attaches the other end 3b of the flexible cylindrical body 3 in a watertight manner. 95. The cylindrical portion 95 is inserted into the other end 3b of the flexible cylindrical body 3, and is attached to the other end 3b of the flexible cylindrical body 3 in a watertight manner by a known fastening metal fitting 18. The second connecting body 90 may be formed by bonding a plurality of components.

  The base 91 includes a circular side wall 96, a peripheral wall 97 provided around the side wall 96, and a base 99 provided at the front end of the peripheral wall 97. , 101 are formed, and engaging groove portions 93a, 93b are formed inside the arm members 100, 101. The width between the engaging groove portions 93a and 93b is narrowed from the upper portion toward the lower portion.

  Mounting holes 96a and 99a are formed in the base portion 91, that is, the axial center portion of the side wall 96 and the base portion 99, and a known valve 70 is provided in the mounting holes 96a and 99a. An opening 102 is formed in the peripheral wall 97 of the base 91, and a valve handle 72 is inserted through the opening 102 so that the valve 70 can be opened and closed. A drain hole 105 communicating with the mounting hole 99 a of the base 99 is formed in the axial center of the second connecting body 90, that is, the axial center of the base 99. The drain hole 105 communicates with a drain port 104 formed on the tip surface of the base 99. A drainage portion 103 is formed by the drainage hole 105 and the drainage port 104.

  A substantially rectangular recess 106 is formed on the peripheral surface portion 90 a of the second connecting body 90, that is, the upper portion of the base 91 of the second connecting body 90, and the side wall 96 communicates the inside of the recess 106 and the inside of the cylindrical portion 95. A through hole 107 is formed. A pipe 109 is provided in the through hole 107, and a known air valve 110 that is screwed from the recess 106 is provided at the tip of the pipe 109. This air valve 110 is an air vent means. A cylinder 111 communicating with the mounting hole 96 a of the side wall 96 is attached to the other surface 91 b of the base 91. 112 and 112 are reinforcing disks, and a large hole 113 through which the cylinder 111 passes is formed at the center, and a small hole 115 through which the pipe 109 passes is formed at the top.

  The portable expansion weir 51 has the above-described configuration, and can be folded and stored in a compact manner in the same manner as the portable expansion weir 1. When the tip 29 of the fire hose 28 is inserted into the pouring / drain port 75 formed in the peripheral surface portion 60 a of the first connecting body 60, the tip 29 of the fire hose 28 is locked by the lock member 77 a of the coupling metal 77.

  An engine pump (not shown) is inserted with the valve handle 72 inserted through the opening 71 of the first connecting body 60 to open the valve 70 and the air valves 81 and 110 of the first connecting body 60 and the second connecting body 90 being opened. Thus, water is injected from the tip 29 of the fire hose 28. When the flexible cylinder 3 expands and water comes out of the air valves 81 and 110 provided at the upper part, the engine pump is stopped and the valve 70 and the air valves 81 and 110 are closed. The flexible cylinder 3 is held in a state filled with water.

  The lock release means 28 a of the fire hose 28 releases the lock of the lock member 77 a of the coupling metal 77, and the tip 29 of the fire hose 28 is pulled out from the pouring / drain port 75 of the first connecting body 60. In this way, the portable expansion weir 51 can be filled with water. When the valve handle 72 is inserted from the openings 71 and 102 of the first connecting body 60 and the second connecting body 90 and the valves 70 and 70 are opened, the flexible cylinder 3 is transferred from the pouring / drainage portion 73 and the drainage portion 103. The filled water is drained at the same time.

  When the length of the portable expansion weir 51 is insufficient, as shown in FIG. 6, the left and right side edges 63 a and 63 b of the engagement plate 63 of the first connecting body 60 are connected to another portable expansion weir 51. By engaging with the engaging grooves 93a and 93b of the second connecting body 90, another portable expansion weir 51 can be connected. Since the portable expansion weir 51 has the pouring / drain port 75 formed in the peripheral surface portion 60 a of the first connecting body 60, water can be poured in a connected state.

  The outer diameter of the flexible cylinder 3 is about 25 cm, and when stacked as shown in FIG. 8, it becomes a waterproof weir having a height of about 47 cm and a width of about 51 cm. Moreover, the length of the portable expansion weirs 1 and 51 is about 25 m, 30 m, and 40 m, and these are connected to be used with about 100 m, and the total weight is about 14 tons. In this way, when the portable expansion weirs 1 and 51 are connected to a length of about 100 m and stacked as shown in FIG. 8 to construct a waterproof weir, about four people can construct in about one hour. it can. When a waterproof weir of about 100 m was constructed with sandbags, it took about 8 hours for about 50 people.

1 is an overall perspective view of a portable expansion weir showing an embodiment of the present invention. It is a perspective view of a 1st coupling body. FIG. 3 is a side sectional view of FIG. 2. It is a perspective view of a 2nd coupling body. FIG. 5 is a side sectional view of FIG. 4. It is a perspective view which shows the connection state of the portable expansion weir which concerns on this invention. It is a perspective view which shows the use condition of the portable expansion | swelling weir based on this invention. FIG. 8 is a front view of FIG. 7. It is a front view which shows the storage state of the portable expansion | swelling weir based on this invention. It is a perspective view of the 1st coupling body of the portable expansion weir which shows other embodiment of this invention. It is side surface sectional drawing of FIG. It is a perspective view of the 2nd coupling body of the portable expansion | swelling weir which shows other embodiment of this invention. It is side surface sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable expansion weir 2 Weir body 3 Flexible cylinder 3a One end 3b The other end 10 The 1st connection body 10a Front surface 10b Peripheral surface part 11 Base part 11a One surface 11b The other surface 12 Projection part 13 Engagement plate 13a Side edge 13b Side edge 15 Cylinder 16 Check valve member 16a Valve member 17 Lock member 18 Fastening fitting 19 Water injection hole 20 Water injection part 22 Water injection port 23 Recessed part 25 Through hole 26 Air valve (Air venting means)
28 Fire hose 28a Unlocking means 29 Tip 30 Second coupling body 31 Base 31a One surface 31b The other surface 33a Engaging groove portion 33b Engaging groove portion 35 Cylindrical portion 36 Boss 37 Female thread portion 38 Drain hole 40 Drain port 39 Plug DESCRIPTION OF SYMBOLS 41 Arm member 42 Arm member 43 Elastic board 45 Fastening member 46 Belt 47 Surface fastener 48 Water 49 Drain part 51 Portable expansion weir 60 First connection body 60a Peripheral surface part 61 Base part 61a One surface 61b The other surface 62 Projection part 63 Engagement plate 63a Side edge 63b Side edge 65 Cylindrical part 66 Side wall 66a Mounting hole 67 Peripheral wall 69 Base part 69a Mounting hole 70 Valve 71 Opening 72 Valve handle 73 Injection / drainage part 75 Injection / drainage port 76 Injection / drainage channel 77 Joint fitting 77a Lock member 78 Concave portion 79 Through hole 80 Pipe 81 Air valve (empty Without means)
83 Cylindrical 85 Reinforcement disk 86 Large hole 87 Small hole 90 Second coupling body 90a Circumferential surface portion 91 Base portion 91a One surface 91b The other surface 93a Engaging groove portion 93b Engaging groove portion 95 Cylindrical portion 96 Side wall 96a Mounting hole 97 Peripheral wall 99 Base portion 99a Mounting hole 100 Arm member 101 Arm member 102 Opening 103 Drainage part 104 Drainage port 105 Drainage hole 106 Recessed part 107 Through hole 109 Pipe 110 Air valve (air venting means)
111 Cylinder 112 Reinforcement disk 113 Large hole 115 Small hole

Claims (7)

A portable expansion weir characterized by the following requirements:
(A) The dam body has water tightness, and is provided at the other end of the flexible cylinder, the first connecting body provided at one end of the flexible cylinder, and the flexible cylinder. And a second coupling body coupled to the first coupling body.
(B) At least one of the first connector and the second connector is provided with air venting means.
(C) The first connector is provided with a water injection part or a water injection / drainage part.
(D) The second connector is provided with a drainage section or a pouring / drainage section. The portable expansion weir according to claim 1, comprising the following requirements.
(A) The first connector is formed in a cylindrical shape, and a water injection part or a water injection / drainage part is provided in the axial center part.
(B) The second connector is formed in a cylindrical shape, and a drainage portion or a pouring / drainage portion is provided in the axial center portion. The portable expansion weir according to claim 1, comprising the following requirements.
(B) The first connector is formed in a cylindrical shape, and a water injection part or a water injection / drainage part is provided on the peripheral surface part.
(B) The second connector is formed in a cylindrical shape, and a drainage portion or a pouring / drainage portion is provided in the axial center portion. The portable expansion weir according to claim 1, comprising the following requirements.
(B) The first connector is formed in a cylindrical shape, and a water injection part or a water injection / drainage part is provided on the peripheral surface part.
(B) The second connector is formed in a cylindrical shape, and a drainage portion or a pouring / drainage portion is provided on the peripheral surface portion.   The portable expansion weir according to any one of claims 1 to 4, wherein air venting means is provided on at least one peripheral surface portion of the first coupling body or the second coupling body. The portable expansion weir according to any one of claims 1 to 5, comprising the following requirements.
(A) The first connecting body is provided with a circular base, a protrusion provided at one of the bases, an engagement plate provided at the tip of the protrusion, and the other of the base, and is a flexible cylinder. It consists of the cylinder part which attaches one end of watertightly.
(B) The second connecting body is provided on one side of the circular base portion and the base, and is provided on the other side of the engaging groove portion that engages both side edges of the engaging plate of the first connecting body. It consists of the cylinder part which attaches the other end of a flexible cylinder to watertight. The portable expansion weir according to claim 6, wherein a width between the engagement plate and the engagement groove is narrowed downward.

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