A combined box-type flood-control sub-embankment and its emergency rescue method

Abstract

The present invention discloses a combined box-type flood-prevention sub-dike and a rescue method thereof, comprising a plurality of combined water retaining units, wherein the water retaining units can be combined in the transverse and longitudinal directions, and when the water retaining units are combined in the transverse direction, two adjacent water retaining units are connected together by a transverse connecting piece; when the water retaining units are combined in the longitudinal direction, two adjacent water retaining units are connected together by a longitudinal connecting piece; the present invention combines the water retaining units with the operation of the rescue method to realize a sub-dike which occupies less space when stacked, has excellent water-stopping and water-retaining performance when combined, and can be constructed in combination, and can retain water by water by pouring water into the units, and can use local materials and can be reused.

Description

Technical Field

[0001] The invention relates to the technical field of flood control sub-dikes, and in particular to a combined box-type flood control sub-dike and a rescue method thereof. Background Art

[0002] Flood control sub-dikes are mainly used to protect dikes and dams from overflowing waves and dangers. On the one hand, they can prevent flooding disasters caused by low dike flood control standards or super-standard floods, where the river water level rises sharply and exceeds the dike top elevation; on the other hand, they can prevent local dike sections from causing dangerous waves and dangers due to strong winds, large waves and water flowing over the dike top during the flood season. They can also be used in urban flood control and rescue to build temporary water retaining facilities, temporary diversion channels, temporary cofferdams, etc.

[0003] Ordinary flood control sub-dikes are usually built by stacking sandbags. This method requires a large number of sandbags, which are transported manually. Manual transportation is not only time-consuming and laborious, but also every second counts during rescue operations. Stacking sandbags often delays rescue operations. At the same time, sandbags have low reusability, are inconvenient to store, and have low water head.

[0004] There is an urgent need for a box-type flood-control sub-dike with infinite unit combinations and a rescue method thereof that can solve the above-mentioned problems. Summary of the invention

[0005] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a combined box-type flood-control sub-dike and a rescue method thereof, which can realize a small space occupation when stacked, excellent water-stopping and water-retaining performance when combined, and a combined construction, and can achieve water-retaining by pouring water into the units, using local materials and being reusable, and a box-type flood-control sub-dike and a rescue method thereof that can be combined with unlimited units.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention provides a combined box-type flood-control sub-dike, comprising a plurality of combined water retaining units, which can be combined in the transverse direction and in the longitudinal direction. When the water retaining units are combined in the transverse direction, two adjacent water retaining units are connected together through a transverse connecting piece; when the water retaining units are combined in the longitudinal direction, two adjacent water retaining units are connected together through a longitudinal connecting piece.

[0008] The water retaining unit comprises a box body with an opening at one end and a cover body covering the box body, the box body has a front plate facing the water surface and a back plate opposite to the front plate, two opposite side plates and a bottom plate, the front plate, back plate, side plates and bottom plate of the box body enclose a containing space, and the area of ​​the open end of the containing space is larger than the area of ​​the bottom surface of the box body; a plurality of inwardly concave back grooves are arranged on the back plate of the box body, and the back grooves form a boss in the containing space, and the boss is in a structure with a closed end and a flared end, and the flared end is located on the bottom plate of the box body;

[0009] The two side plates of the box body and one side close to the front plate are provided with embedding grooves for the insertion of the transverse connecting piece, and a water stop strip is fixed on the bottom plate of the box body, and the two ends of the water stop strip extend to the two embedding grooves respectively; when two adjacent water retaining units are connected together through a transverse connecting piece, there is a plug-in gap between the two adjacent water retaining units for the cooperation of the longitudinal connecting piece.

[0010] Preferably, the embedding groove is an inner groove and forms a boss in the accommodating space. The boss also has a closed end and a flared end, and the flared end is located on the bottom plate of the box body. Both ends of the water stop strip extend to the flared end of the boss.

[0011] Preferably, the transverse connecting member is sealed and connected to the embedding groove, and the transverse connecting member is in a step structure, and a notch is provided on the upper bottom surface of the transverse connecting member, and two symmetrically arranged raised corners are formed;

[0012] A pair of side walls of the transverse connecting member are fixed with positioning protrusions, and when two adjacent water retaining units are transversely connected, the positioning protrusions are respectively pressed against the side plates of the two adjacent water retaining units to form the insertion gap;

[0013] A water stop groove is provided on the lower bottom surface of the transverse connecting member, and a transverse water stop pad is embedded in the water stop groove. When two adjacent water retaining units are transversely connected, the two ends of the transverse water stop pad are pressed against the side plates of the two adjacent water retaining units, and the transverse water stop pad is flush with the water stop strips on the two adjacent water retaining units.

[0014] The longitudinal connecting member includes a waterstop plate, a waterstop column is fixed on one surface of the waterstop plate, a hard top plate is fixed on the surface of the waterstop plate away from the waterstop column, the waterstop column is inserted in the insertion gap and pressed against the groove of the transverse connecting member, a longitudinal waterstop pad is fixed in the groove of the transverse connecting member, when two adjacent water retaining units are longitudinally connected, the end of the waterstop strip of the water retaining unit on the upper layer is pressed against the waterstop plate, and the hard top plate is flush with the waterstop strip of the water retaining unit on the upper layer.

[0015] Preferably, the outer edge of the open end of the box body is provided with a circle of flange, at least a part of the embedding groove extends into the flange and forms a clamping groove, and the raised corner of the transverse connecting member is interference fit with the clamping groove;

[0016] The cover body and the inner circle of the flange are interference fit, and when the cover body is closed, the cover body is flush with the flange.

[0017] Preferably, two symmetrically arranged hand-holding grooves are provided on the flange.

[0018] Preferably, the cover body is snap-connected to the box body, and a blind hole for the protruding corner to be plugged into is provided on the cover body.

[0019] Preferably, the water stop strip, the transverse water stop pad, the longitudinal water stop pad, the water stop plate and the water stop column are all made of rubber.

[0020] Preferably, a plurality of anti-skid feet are fixed on the bottom plate of the box body, and the anti-skid feet are flush with the water stop strip;

[0021] A plurality of front reinforcing ribs are arranged on the front plate of the box body, and back reinforcing ribs are arranged on the back plate of the box body and on both sides of the back groove.

[0022] Preferably, a plurality of water inlet and outlet holes are provided at positions of the front plate of the box body near the bottom plate, and plugs are detachably provided in the water inlet and outlet holes; and a water injection hole is provided on the cover body.

[0023] A combined box-type flood-control sub-dike rescue method is as follows:

[0024] If only one row of horizontal retaining is needed:

[0025] Connect the boxes with transverse connectors and cover them with covers;

[0026] Use a water pump and fire hose to inject water into each box, or add stones, sand and other solid materials into each box by other means;

[0027] After the water blocking is completed, lift the cover. If the box is filled with water, use a water pump and a fire hose to pump out the water in the box, or drain it through the water inlet and outlet holes; if the box is filled with solid matter, drain it through tools;

[0028] After cleaning, separate the boxes from the horizontal connectors and stack the boxes for storage;

[0029] If you need to arrange double or multiple layers of water retaining:

[0030] First, arrange the first layer of water retaining units in the manner of arranging a row of transverse water retainings, and place longitudinal water stop pads on the top of the transverse connectors;

[0031] Inserting the longitudinal connector into the insertion gap between the first layer boxes;

[0032] Arranging a second layer of water retaining units, wherein the second layer of water retaining units are stacked on the first layer of water retaining units, and the second layer of water retaining units are arranged in a row of horizontal water retaining units;

[0033] And so on, the third and subsequent layers are arranged;

[0034] After the water retaining is completed, the water in each water retaining unit is drained layer by layer from top to bottom, and the box body, horizontal connectors and vertical connectors are recovered.

[0035] The beneficial effects of the present invention are:

[0036] The present invention can realize horizontal stacking and vertical stacking through the combined water retaining units, has strong adaptability, is easy to disassemble and assemble, and can be reused; and can realize water retaining by pouring water into the water retaining units or other fixation, and can use local materials, which greatly improves the working efficiency of water retaining;

[0037] The present invention realizes convenient combination in each water retaining unit bracket through the structural design of the water retaining unit on the one hand, and on the other hand, through the arrangement of the back groove, accommodating space and other structures thereon, when a weight is added to the water retaining unit, the center of gravity can be changed, thereby improving the stability during water retaining, and at the same time, it can also further promote the pressure on the water retaining strip to improve the water stopping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A structural front view (single layer) of a combined box-type flood-control sub-dike provided in an embodiment of the present invention;

[0040] Figure 2 for Figure 1 The three-dimensional Figure 1 ;

[0041] Figure 3 for Figure 1 The three-dimensional Figure 2 ;

[0042] Figure 4 is a schematic diagram of the structure of the cover;

[0043] Figure 5 The structure of the box is shown in Figure 1. Figure 1 (perspective);

[0044] Figure 6 The structure of the box is shown in Figure 1. Figure 2 ;

[0045] Figure 7 is a schematic diagram of the structure of the transverse connecting member;

[0046] Figure 8 is a schematic diagram of the structure of the longitudinal connector;

[0047] Fig. 9 It is a structural schematic diagram of two layers of water retaining units stacked (partial cross-section);

[0048] Fig.10 It is a three-dimensional diagram of two layers of water retaining units stacked;

[0049] Fig.11 for Fig. 9 A partial enlarged view of the

[0050] Fig.12 Schematic diagram of the boxes being stacked together after being folded;

[0051] Fig.13 The structure of the box is shown in Figure 1. Figure 3 ;

[0052] Fig.14 is a schematic diagram of the structure of the hole plug;

[0053] Fig.15 A schematic diagram of water retaining;

[0054] Fig.16 Schematic diagram of the effect on the water retaining bar when the box is filled with water or weighted objects are added.

[0055] Description of reference numerals:

[0056] 01-box body, 1-cover body, 2-water injection hole, 3-embedded groove, 4-front stiffening rib, 5-back stiffening rib, 6-back groove, 7-hand-held groove, 8-waterstop strip, 9-transverse connecting piece, 10-raised angle, 11-positioning protrusion, 12-transverse waterstop pad, 13-anti-slip foot, 14-longitudinal connecting piece, 15-waterstop plate, 16-hard top plate, 17-waterstop column, 18-longitudinal waterstop pad, 19-water inlet and outlet holes, 20-hole plug, 21-flange. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] Example

[0059] like Figures 1 to 3 As shown, the present invention provides a combined box-type flood control sub-dike, including a plurality of combined water retaining units, which can be combined in the transverse and longitudinal directions. When the water retaining units are combined in the transverse direction, two adjacent water retaining units are connected together by a transverse connecting member 9; when the water retaining units are combined in the longitudinal direction, as shown in FIG. Fig. 9 and Fig.10 As shown, two adjacent water retaining units are connected together by a longitudinal connecting member 14;

[0060] The water retaining unit comprises a box body 01 with an opening at one end and a cover body 1 covering the box body 01. The box body 01 has a front plate facing the water surface, a back plate opposite to the front plate, two opposite side plates and a bottom plate. The front plate, back plate, side plates and bottom plate of the box body 01 enclose a containing space, and the area of ​​the open end of the containing space is larger than the area of ​​the bottom surface of the box body 01, that is, the bottom of the containing space is small and the opening is large. Figure 5 As shown, the overall structure is an inverted terrace-like structure;

[0061] like Figure 5 As shown, two side plates of the box body 01 and one side close to the front plate are provided with an embedding groove 3 for the transverse connector 9 to be inserted, and a water stop strip 8 is fixed on the bottom plate of the box body 01, and the two ends of the water stop strip 8 extend to the two embedding grooves 3 respectively; when two adjacent water retaining units are connected together by the transverse connector 9, there is an insertion gap between the two adjacent water retaining units for the longitudinal connector 14 to cooperate;

[0062] The back plate of the box 01 is provided with a plurality of inwardly concave back grooves 6, and the back grooves 6 form a boss in the accommodating space, the boss has a closed end and a flared end, and the flared end is located on the bottom plate of the box 01, as shown in FIG. Figure 5 As shown, the boss is actually a step structure; this structure makes the volume of the accommodating space affected by the back groove 6, that is:

[0063] Firstly, the accommodating space is in an inverted step structure, so that when water is added, the projection of the water surface toward the bottom plate of the box body 01 is larger than the area of ​​the bottom plate of the box body 01, that is, it can cover the bottom plate, and then the water stop strip 8 is also covered, so that a part of the water body is suspended above the water stop strip 8 and extends outside the water stop strip 8, thereby being able to generate pressure on the water stop strip 8 while also generating a lever-like structure, that is, ignoring other parts and only considering the extended water body. At this time, this part of the water body forms a lever, and the water stop strip 8 forms a fulcrum, which is then combined with the groove 6 on the back to generate a center of gravity shift and promote the generation of a lever, such as Fig.16 As shown, the horizontal bold horizontal line in the figure can be regarded as the arm length of the lever, and the arrow represents the gravity of the water forming the right-angled trapezoidal part at the dotted line (that is, the gravity of the water extending outside the water stop strip 8);

[0064] Secondly, the boss formed by the back groove 6 in the accommodating space changes the structure of the accommodating space. When water is poured in, the center of gravity of the entire water body moves toward the water retaining surface (i.e., the front plate), that is, the center of gravity moves forward to improve the stability when retaining water, and then combined with the accommodating space, the effect of the lever structure is promoted, thereby increasing the pressure on the water stop strip 8; at the same time, as the amount of water continues to increase, the center of gravity will be closer to the front plate, and the pressure on the water stop strip 8 will be greater;

[0065] Furthermore, the embedded groove 3 is an inner groove, and a boss is also formed in the accommodating space, and the boss is also in a structure with one end closed and the other end expanded, and the expanded end is located on the bottom plate of the box body 01, and both ends of the water stop strip 8 extend to the expanded end of the boss; that is, the boss formed by the embedded groove 3 is similar to the boss structure formed by the back groove 6, and both are step structures; since the embedded groove 3 is close to the front plate, the structure of the boss formed in the accommodating space can promote each other with the boss formed by the back groove, further promote the movement of the center of gravity, and improve the water-stopping effect and the stability of the box body 01.

[0066] In order to ensure the sealing of the connection, the transverse connecting member 9 is sealed with the embedding groove 3, for example, by interference fit, or a rubber strip is provided at the connection between the transverse connecting member 9 and the embedding groove 3 for sealing, and the transverse connecting member 9 is a step structure, and a notch is provided on the upper bottom surface of the transverse connecting member 9, and two symmetrically provided two raised corners 10 are formed, as shown in FIG. Figure 7 As shown;

[0067] A pair of side walls of the transverse connecting member 9 are fixed with positioning protrusions 11. When two adjacent water retaining units are transversely connected, the positioning protrusions 11 are respectively pressed against the side plates of the two adjacent water retaining units to form a plug-in gap, that is, the positioning protrusions 11 restrict the two boxes 01 from getting closer.

[0068] A water stop groove is provided on the lower bottom surface of the transverse connecting member 9, and a transverse water stop pad 12 is embedded in the water stop groove. When two adjacent water retaining units are connected transversely, the two ends of the transverse water stop pad 12 are pressed against the side plates of the two adjacent water retaining units, and the transverse water stop pad 12 is flush with the water stop strips 8 on the two adjacent water retaining units to ensure that the transverse water stop pad 12 and the water stop strip 8 can both fit on the ground;

[0069] like Figure 8 As shown, the longitudinal connector 14 includes a waterstop plate 15, a waterstop column 17 is fixed on one surface of the waterstop plate 15, a hard top plate 16 is fixed on the surface of the waterstop plate 15 away from the waterstop column 17, the waterstop column 17 is inserted in the insertion gap and pressed against the groove of the transverse connector 9, and a longitudinal waterstop pad 14 is fixed in the groove of the transverse connector 9. When two adjacent water retaining units are longitudinally connected, the end of the waterstop strip 8 of the water retaining unit located on the upper layer is pressed against the waterstop plate 15, and the hard top plate 16 is flush with the waterstop strip 8 of the water retaining unit located on the upper layer.

[0070] Furthermore, two methods are provided for installing the cover body 1:

[0071] First, the outer edge of the open end of the box body 01 is provided with a circle of flange 21, at least a part of the embedding groove 3 extends into the flange 21 and forms a slot, and the raised corner 10 of the transverse connecting member 9 is interference fit with the slot; the cover body 1 is interference fit with the inner circle of the flange 21, and when the cover body 1 is closed, the cover body 1 is flush with the flange 21; two symmetrically arranged hand-holding grooves 7 are provided on the flange 21; the box body 1 shown in the attached figure is this method;

[0072] This arrangement is connected to the cover body 1 through the flange 21. In order to further ensure the connection of the transverse connecting member 9, the flange 21 needs to be provided with a slot to allow the raised corner 10 to be inserted, thereby preventing it from being separated. Fig. 9 As shown;

[0073] Secondly, the cover body 1 is snap-fitted to the box body 01, and a blind hole is provided on the cover body 1 for the protruding corner 10 to be inserted into. At this time, the hand-holding groove 7 can be provided on the cover body 1;

[0074] Similarly, a blind hole needs to be provided for the protruding corner 10 to be inserted to avoid detachment. In addition, for the snap-in structure, the snap-in method in the prior art can be adopted, which will not be described in detail here. For example, a boss is provided on the cover body 1, and the size of the boss is consistent with the opening of the box body 01, and then inserted into the opening of the box body. At the same time, a plurality of buckle grooves are provided around the boss of the cover body 1, and a plurality of buckle platforms cooperating with the buckle grooves are provided around the opening of the box body 01, thereby realizing the snap-in connection.

[0075] Furthermore, since the water stop strip 8 and the transverse water stop pad 12 are in contact with the ground and are affected by the uneven ground, they are suitable for using softer rubber with large compression deformation, such as chloroprene rubber. As for the longitudinal water stop pad 18, the water stop plate 15 and the water stop column 17, since they are not in contact with the ground, they can choose ordinary sealing rubber, such as EPDM rubber, according to actual conditions; in addition, as for the rubber strip used in the sealing connection between the transverse connector 9 and the embedded groove 3, since this place does not need to be affected by the uneven ground, it mainly achieves sealing by interference fit, so it can use ordinary sealing rubber, such as EPDM rubber; for the box body 01, the transverse connector 9 and the longitudinal connector 14, the material can be PP or PE, which is formed by injection molding or rotational molding. If there are higher application and water blocking requirements, the box body 01 can also be customized to be made of metal (aluminum, iron);

[0076] Since the water stop strip 8 is fixed to the bottom plate, it protrudes from the bottom plate. Figure 6 As shown, a number of anti-slip feet 13 are fixed on the bottom plate of the box body 01, and the anti-slip feet 13 are flush with the water stop strip 8; in addition, in order to improve the overall strength of the box body 01, a number of front reinforcing ribs 4 are arranged on the front plate of the box body 01, and back reinforcing ribs 5 are arranged on the back plate of the box body 01 and on both sides of the back groove 6.

[0077] Further, such as Fig.13 and Fig.14 As shown, a plurality of water inlet and outlet holes 19 are provided at the position of the front plate of the box body 01 near the bottom plate, and a plug 20 is detachably provided in the water inlet and outlet holes 19, and the plug 20 can be made of rubber or silicone; a water injection hole 2 is provided on the cover body 1, and water can be injected and drained through the water inlet and outlet holes 2;

[0078] like Fig.15 As shown, the following two methods can be used to block water:

[0079] First, the plug 20 can be removed to allow water on the water-facing surface to enter the box 01 through the water inlet and outlet holes 19, and the weight of the box 01 and the weight of the incoming water provide downward pressure on the water retaining unit, thereby achieving water stopping;

[0080] Secondly, plug the hole plug 20, and pour water through the upper part of the box body 01. The weight of the box body 01 and the weight of the poured water provide downward pressure to the water retaining unit, thereby achieving water stopping.

[0081] When in use, the weight of the water stop strip 8 is lifted after the box 01 is filled with water, and the water stop strip 8 is compressed to achieve sealing and water stopping; the side of the transverse connecting piece 9 is tightly embedded in the embedding groove 3 of the box 01, and the raised corner 10 is inserted into the corresponding position. After the box 01 is filled with water, the weight gives a downward pressure to the transverse connecting piece 9 through the raised corner 10, and the transverse water stop pad 12 at the bottom is compressed to achieve sealing and water stopping; after the box 01 and the transverse connecting piece 9 are spliced, the water stop strip 8 at the bottom of the box 01 and the transverse water stop pad 12 at the bottom of the transverse connecting piece 9 are seamlessly connected at both ends to achieve seamless water stopping at the bottom, see Figure 2 Bottom schematic diagram;

[0082] If it is necessary to construct two layers of water retaining units, it is necessary to place the longitudinal water stop pad 18 on the transverse connector 9, then insert the transverse connector 9 into the embedding groove 3, and then insert the longitudinal connector 14 into the plug-in gap between the two boxes 01, and then stack the second layer of water retaining units on the first layer. After the upper water retaining unit is filled with water, the gravity is transferred to the hard top plate 16 of the longitudinal connector 14. The hard top plate 16 presses the water stop plate 15 and the water stop column 17. At the same time, the water stop plate 15 is also pressurized to stop water, thereby achieving water stopping at the longitudinal connector 14.

[0083] The emergency rescue methods are as follows:

[0084] First, if only one row of horizontal water retaining is needed:

[0085] Connect the boxes 01 with the transverse connector 9 and cover them with the cover 1;

[0086] Use a water pump and a fire hose to inject water into each box 01, or add stones, sand and other solid materials into each box 01 by other means;

[0087] After the water blocking is completed, the cover 1 is lifted. If the box 01 is filled with water, the water in the box 01 is pumped out by a water pump and a fire hose, or the water is drained through the water inlet and outlet holes 19; if the box 01 is filled with solid matter, it is discharged through a tool, which can be a shovel or other tool;

[0088] After cleaning, the box 01 is separated from the transverse connecting member 9, and the boxes 01 are stacked and stored;

[0089] Second, if you need to arrange double or multiple layers of water retaining:

[0090] First, arrange the first layer of water retaining units in the manner of arranging a row of transverse water retainings, and place a longitudinal water stop pad 18 at the top of the transverse connector 9;

[0091] Insert the longitudinal connector 14 into the insertion gap between the first layer boxes 01;

[0092] Arranging a second layer of water retaining units, wherein the second layer of water retaining units are stacked on the first layer of water retaining units, and the second layer of water retaining units are arranged in a row of horizontal water retaining units;

[0093] And so on, the third and subsequent layers are arranged;

[0094] After the water blocking is completed, the water in each water blocking unit is drained layer by layer from top to bottom, and the box body 01, the horizontal connector 9 and the longitudinal connector 14 are recovered.

[0095] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A combined box-type flood control sub-embankment, characterized in that: It comprises a plurality of water retaining units combined together, wherein the water retaining units can be combined in the transverse direction and in the longitudinal direction. When the water retaining units are combined in the transverse direction, two adjacent water retaining units are connected together via a transverse connecting member (9); when the water retaining units are combined in the longitudinal direction, two adjacent water retaining units are connected together via a longitudinal connecting member (14); The water retaining unit comprises a box body (01) with an opening at one end and a cover body (1) covering the box body (01); the box body (01) has a front plate facing the water surface and a back plate opposite to the front plate, two opposite side plates and a bottom plate; the front plate, back plate, side plates and bottom plate of the box body (01) enclose a containing space, and the area of ​​the open end of the containing space is larger than the area of ​​the bottom surface of the box body; a plurality of inwardly concave back grooves (6) are arranged on the back plate of the box body (01), and the back grooves (6) form a boss in the containing space, and the boss is in a structure with a closed end and a flared end, and the flared end is located on the bottom plate of the box body (01); Two side plates of the box body (01) and one side close to the front plate are provided with embedding grooves (3) for inserting the transverse connecting piece (9); a water stop strip (8) is fixed on the bottom plate of the box body (01); two ends of the water stop strip (8) extend to the two embedding grooves (3) respectively; when two adjacent water retaining units are connected together through the transverse connecting piece (9), there is an insertion gap between the two adjacent water retaining units for the longitudinal connecting piece (14) to cooperate; The transverse connecting member (9) is sealedly connected to the embedding groove (3), and the transverse connecting member (9) is in a step structure, and a notch is provided on the upper bottom surface of the transverse connecting member (9), forming two symmetrically arranged raised corners (10); A pair of side walls of the transverse connecting member (9) are fixed with positioning protrusions (11), and when two adjacent water retaining units are transversely connected, the positioning protrusions (11) are respectively pressed against the side plates of the two adjacent water retaining units to form the insertion gap; A water stop groove is provided on the lower bottom surface of the transverse connecting member (9), and a transverse water stop pad (12) is embedded in the water stop groove. When two adjacent water retaining units are transversely connected, the two ends of the transverse water stop pad (12) are pressed against the side plates of the two adjacent water retaining units, and the transverse water stop pad (12) is flush with the water stop strips (8) on the two adjacent water retaining units. The longitudinal connecting member (14) comprises a water stop plate (15), a water stop column (17) is fixed on one surface of the water stop plate (15), a hard top plate (16) is fixed on the surface of the water stop plate (15) away from the water stop column (17), the water stop column (17) is inserted into the insertion gap and pressed against the notch of the transverse connecting member (9), a longitudinal water stop pad (18) is fixed in the notch of the transverse connecting member (9), when two adjacent water retaining units are longitudinally connected, the end of the water stop strip (8) of the water retaining unit located at the upper layer presses against the water stop plate (15), and the hard top plate (16) is flush with the water stop strip (8) of the water retaining unit located at the upper layer; The embedding groove (3) is an inner groove and forms a boss in the accommodating space. The boss also has a closed end and a flared end, and the flared end is located on the bottom plate of the box body (01). Both ends of the water stop strip (8) extend to the flared end of the boss.

2. A combined box-type flood-control sub-embankment as claimed in claim 1, characterized in that: The outer edge of the open end of the box body (01) is provided with a flange (21), at least a portion of the embedding groove (3) extends into the flange (21) to form a slot, and the raised corner (10) of the transverse connecting member is interference-fitted with the slot; The cover body (1) and the inner ring of the flange (21) are interference fit, and when the cover body (1) is closed, the cover body (1) and the flange (21) are flush.

3. A combined box-type flood-control sub-embankment as claimed in claim 2, characterized in that: The flange (21) is provided with two symmetrically arranged hand-holding grooves (7).

4. A combined box-type flood-control sub-embankment as claimed in claim 1, characterized in that: The cover body (1) is snap-connected to the box body (01), and a blind hole is provided on the cover body (1) for the protruding corner (10) to be plugged in.

5. A combined box-type flood-control sub-embankment as claimed in claim 1, characterized in that: The water stop strip (8), the transverse water stop pad (12), the longitudinal water stop pad (18), the water stop plate (15) and the water stop column (17) are all made of rubber material.

6. A combined box-type flood-control sub-embankment as claimed in claim 1, characterized in that: A plurality of anti-slip feet (13) are also fixed on the bottom plate of the box body (01), and the anti-slip feet (13) are flush with the water stop strip (8); A plurality of front reinforcing ribs (4) are arranged on the front plate of the box body (01), and back reinforcing ribs (5) are arranged on the back plate of the box body (01) and on both sides of the back groove (6).

7. A combined box-type flood-control sub-embankment as claimed in claim 1, characterized in that: A plurality of water inlet and outlet holes (19) are provided on the front plate of the box body (01) near the bottom plate, and hole plugs (20) are detachably provided in the water inlet and outlet holes (19); a water injection hole (2) is provided on the cover body (1).

8. A combined box-type flood-prevention sub-dike rescue method as claimed in claim 1, characterized in that: The details are as follows: If only one row of horizontal retaining is needed: Connect the boxes (01) via a transverse connecting piece (9) and cover them with a cover (1); Use a water pump and a fire hose to inject water into each box (01), or add stones or sand into each box (01) by other means; After the water blocking is completed, the cover (1) is lifted up, and if the box (01) is filled with water, the water in the box (01) is pumped out using a water pump and a fire hose, or the water is drained through the water inlet and outlet holes (19); if the box (01) is filled with solid matter, the solid matter is drained out using tools; After cleaning, the box body (01) is separated from the transverse connecting member (9), and the box bodies (01) are stacked and stored; If you need to arrange double or multiple layers of water retaining: Firstly, the first layer of water retaining units is arranged in a manner of arranging a row of transverse water retaining units, and a longitudinal water stop pad (18) is placed on the top of the transverse connecting member (9); Inserting a longitudinal connecting piece (14) into the insertion gap between the first layer boxes (01); Arranging a second layer of water retaining units, wherein the second layer of water retaining units are stacked on the first layer of water retaining units, and the second layer of water retaining units are arranged in a row of horizontal water retaining units; And so on, the third and subsequent layers are arranged; After the water retaining is completed, the water in each water retaining unit is drained layer by layer from top to bottom, and the box body (01), the horizontal connecting piece (9) and the longitudinal connecting piece (14) are recovered.

Images