Emergency water retaining device for cofferdam

Abstract

An emergency water retaining device for a cofferdam belongs to the technical field of water retaining and aims to solve the problem that an existing emergency water retaining device for the cofferdam cannot adaptively adjust the water retaining height according to different water volumes in the using process, the emergency water retaining device for the cofferdam comprises a water retaining plate, and a buffer assembly is arranged on the outer wall of one side of the water retaining plate; a lifting plate is vertically arranged in the water baffle in a sliding mode, a connecting assembly is arranged in the water baffle in a sliding mode, a first clamping piece is fixedly arranged in the water baffle, a first releasing assembly is arranged on the outer wall of the other side of the water baffle in a sliding mode, a pushing assembly is fixedly arranged on the buffering assembly, and a bottom plate is fixedly arranged on the lower portion of the outer wall of the other side of the water baffle. A supporting rod is rotationally arranged between the bottom plate and the water baffle, a pair of second clamping pieces are symmetrically arranged at the lower end of the supporting rod, a pair of second releasing assemblies are symmetrically arranged on the bottom plate, and through the arrangement, the dynamic water retaining effect can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water retaining, in particular to a cofferdam emergency water retaining device. BACKGROUND

[0002] The cofferdam emergency water retaining device is mainly applied to emergency situations such as sudden floods and dam leaks, and provides sufficient time for the rescue of surrounding facilities and the evacuation of personnel. The cofferdam emergency water retaining device is generally divided into inflatable emergency water retaining devices, telescopic emergency water retaining devices, folding emergency water retaining devices and modular emergency water retaining devices, and is widely used in various emergency fields.

[0003] The existing cofferdam emergency water retaining device cannot adaptively adjust the water retaining height according to different water quantities during use, which limits the application range. Moreover, the existing cofferdam emergency water retaining device cannot adjust the supporting force according to the impact force of the water flow during use, which is prone to damage the water retaining device. In addition, the existing cofferdam emergency water retaining device cannot realize automatic splicing during water retaining, and needs to be spliced manually, which is relatively cumbersome to operate.

[0004] In view of the above problems, a cofferdam emergency water retaining device is provided. SUMMARY

[0005] The present application aims to provide a cofferdam emergency water retaining device, which solves the problems of the existing cofferdam emergency water retaining device in the background that cannot adaptively adjust the water retaining height according to different water quantities during use, and cannot adjust the supporting force according to the impact force of the water flow during use. In addition, the cofferdam emergency water retaining device also solves the problem that the existing cofferdam emergency water retaining device cannot realize automatic splicing during water retaining, and needs to be spliced manually, which is relatively cumbersome to operate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an emergency water-blocking device for a cofferdam, comprising a water-blocking plate, a buffer assembly disposed on the outer wall of one side of the water-blocking plate, a lifting plate vertically slidably disposed inside the water-blocking plate, a connecting assembly slidably disposed inside the water-blocking plate, a snap-fit ​​component fixedly disposed inside the water-blocking plate, and a snap-fit ​​component and the connecting assembly capable of forming a snap-fit ​​relationship, a release assembly slidably disposed on the outer wall of the other side of the water-blocking plate, the release assembly being used to release the snap-fit ​​relationship between the snap-fit ​​component and the connecting assembly, and the buffer assembly... A pushing component is fixedly installed on the upper part, and the pushing component is slidably installed on the side wall of the baffle plate. A base plate is fixedly installed on the lower part of the outer wall of the other side of the baffle plate. A support rod is rotatably installed between the base plate and the baffle plate. The buffer component can push the support rod to slide on the base plate through the pushing component to realize the adjustment of the support angle. A pair of snap-fit ​​parts are symmetrically installed at the lower end of the support rod, and the snap-fit ​​parts can form a snap-fit ​​relationship with the base plate. A pair of release components are symmetrically installed on the base plate. The release components are used to release the snap-fit ​​relationship between the snap-fit ​​parts and the base plate.

[0007] Furthermore, the baffle plate has an internal cavity, and an installation groove and a plug groove are respectively provided inside the baffle plate. The installation groove and the plug groove are respectively located on both sides of the cavity, and the installation groove and the plug groove are concentrically arranged.

[0008] Furthermore, the buffer assembly includes a mounting frame fixedly installed in the receiving cavity. A pair of limiting grooves are symmetrically opened on the inner walls on both sides of the mounting frame. A slide block is slidably installed inside the two limiting grooves. The side wall of the slide block and the inner side wall of the limiting groove are elastically connected by a spring. A pair of brackets are fixedly installed on the outer wall of the slide block facing the lifting plate. A roller is rotatably installed on the two brackets.

[0009] Furthermore, the lifting plate includes an extension plate body that is vertically slidably installed in the receiving cavity. The bottom of the extension plate body is provided with an inclined surface. A fixing plate is fixedly installed on the side wall of the extension plate body. The bottom surface of the fixing plate and the side wall of the receiving cavity are elastically connected by a spring. The side wall of the extension plate body that contacts the receiving cavity is coated with a material to reduce friction.

[0010] Furthermore, an arc-shaped plate is fixedly installed on the outer wall of the slide facing the lifting plate. The connecting assembly includes a plug rod that is slidably installed inside the mounting groove. The end of the plug rod near the arc-shaped plate is set as an arc surface. Mounting plates are fixedly installed on the top and bottom surfaces of the end of the plug rod near the arc-shaped plate, respectively. The side wall of each mounting plate is elastically connected to the side wall of the cavity of the receiving cavity by spring three. A snap-fit ​​three is fixedly installed on the side wall of each mounting plate. The snap-fit ​​three can form a snap-fit ​​relationship with the snap-fit ​​one.

[0011] Further, the clamping piece one comprises an insertion cylinder fixedly installed on the side wall of the inner cavity of the accommodating cavity, a clamping opening is formed on the circumferential side wall of the insertion cylinder, and an elastic clamping bead is arranged on the clamping piece three and can form a clamping relationship with the clamping opening.

[0012] Further, the releasing assembly one comprises two top rods penetratingly and slidingly installed on the side wall of the inner cavity of the accommodating cavity, and a handle is fixedly installed on one end of the two top rods located outside the water baffle, and the handle is elastically connected with the water baffle through the spring four.

[0013] Further, a push rod is fixedly installed on the side wall of the extension plate body, and a roller two is rotatably installed on one end of the push rod close to the supporting rod.

[0014] Further, the bottom plate comprises a plate body fixedly installed on the lower part of the outer wall of the other side of the water baffle, an arc-shaped sliding groove is formed on the plate body, a plurality of clamping grooves are formed on the inner walls of the inner cavities of the two sides of the arc-shaped sliding groove, respectively, and the clamping groove farthest from the supporting rod is the deepest.

[0015] Further, a pair of semicircular blocks are symmetrically and slidingly installed on the lower end of the supporting rod, and the semicircular blocks are elastically connected with the supporting rod through the spring five, and the semicircular blocks can form a clamping relationship with the clamping groove.

[0016] The releasing assembly two comprises a top column penetratingly arranged in the inner part of the pair of clamping grooves farthest from the supporting rod, and the top column is elastically connected with the plate body through the spring six at one end located outside the clamping groove.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows:

[0018] 1. When the water flow impact is large, the retraction degree of the sliding seat is large, and the rising height of the extension plate body is higher, so that the water source overflow caused by excessive water flow impact can be avoided; on the contrary, when the water flow impact is small, the retraction degree of the extension plate body is small, and the rising height of the extension plate body is smaller or even not rising, which does not affect the water retaining effect. Therefore, the dynamic water retaining effect can be achieved.

[0019] 2. When the water flow impact is large, the present application can make the two adjacent water baffles in a connected state, so as to enhance the cooperative effect between the water baffles and improve the water retaining effect.

[0020] 3. The present application adjusts the deflection angle of the supporting rod on the bottom plate by using different water flow impacts, so as to dynamically adjust the supporting force according to the size of the water flow impact. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The overall structure of the present application is shown Figure One ;

[0022] Figure 2 schematic diagram of the overall structure of the present application Figure Two ;

[0023] Figure 3 schematic diagram of the overall structure of the present application Figure Three ;

[0024] Figure 4 schematic diagram of the overall structure of the present application

[0025] Figure 5 enlarged view of A of Figure 4 ;

[0026] Figure 6 schematic diagram of the mounting position of the connecting assembly of the present application

[0027] Figure 7 enlarged view of B of Figure 6 ;

[0028] Figure 8 schematic diagram of the three-dimensional structure of the connecting assembly of the present application

[0029] Figure 9 schematic diagram of the cross section of the extension plate of the present application

[0030] Figure 10 enlarged view of C of Figure 9 ;

[0031] Figure 11 enlarged view of D of Figure 9 .

[0032] In the figure: 1, water baffle; 11, accommodating cavity; 12, mounting groove; 13, plug-in groove; 2, buffer assembly; 21, mounting frame; 22, limiting groove; 23, sliding seat; 24, spring one; 25, support; 26, roller one; 27, arc plate; 3, lifting plate; 31, extension plate main body; 32, inclined surface; 33, fixed plate; 34, spring two; 4, connecting assembly; 41, plug rod; 42, mounting plate; 43, spring three; 44, clamping piece three; 5, clamping piece one; 51, plug cylinder; 52, bayonet; 6, release assembly one; 61, jacking rod; 62, spring four; 63, handle; 7, pushing assembly; 71, push rod; 72, roller two; 8, support rod; 9, bottom plate; 91, plate body; 92, arc-shaped sliding groove; 93, clamping groove; 10, release assembly two; 101, jacking column; 102, spring six; 20, clamping piece two; 201, semicircular block; 202, spring five. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0034] To solve the technical problem that the existing cofferdam emergency water retaining device cannot self-adaptively adjust the water retaining height according to different water volume during use, like Figures 1-11 as shown, the following preferred technical solutions are provided:

[0035] As shown in Figure 1 , a cofferdam emergency water retaining device includes a water retaining plate 1 for achieving the effect of water retaining, a buffer assembly 2 is arranged on the outer wall of one side of the water retaining plate 1, and a sealing measure is taken at the connection between the buffer assembly 2 and the water retaining plate 1, for example, a rubber ring is used or a waterproof material is sewn at the connection to achieve a sealing effect, so as to prevent water flow from entering the inside of the water retaining plate 1. In addition, since the buffer assembly 2 has compression performance, when the water flow impacts the water retaining plate 1 and the buffer assembly 2, the buffer assembly 2 can unload part of the impact force, thereby playing a protective role on the water retaining plate 1, as shown in Figure 4 , a lifting plate 3 is vertically and slidably arranged in the inside of the water retaining plate 1. When the water flow impacts the buffer assembly 2, the buffer assembly 2 will retract into the inside of the water retaining plate 1, and the buffer assembly 2 will drive the lifting plate 3 to rise upward in the inside of the water retaining plate 1 in the retraction process of the buffer assembly 2, so as to increase the water retaining height.

[0036] A connecting assembly 4 is slidably arranged in the inside of the water retaining plate 1, and a clamping piece one 5 is fixedly arranged in the inside of the water retaining plate 1, and a clamping relationship can be formed between the clamping piece one 5 and the connecting assembly 4. Since the buffer assembly 2 retracts in the process, it will drive the connecting assembly 4 to stretch out to the outside of the water retaining plate 1. Therefore, when the water flow is too large and the buffer assembly 2 reaches the maximum retraction distance, at this time, the buffer assembly 2 drives the connecting assembly 4 to stretch out to the outside of the water retaining plate 1 to the maximum distance, and the connecting assembly 4 is inserted into the adjacent water retaining plate 1, and at the same time, the clamping piece one 5 and the connecting assembly 4 form a clamping relationship, which limits the retraction of the connecting assembly 4, so that the adjacent two water retaining plates 1 are in a connected state. Through this arrangement, the cooperative effect between the water retaining plates 1 can be enhanced, and the water retaining effect can be improved.

[0037] A releasing assembly one 6 is slidably arranged on the outer wall of the other side of the water retaining plate 1, and the releasing assembly one 6 is used to release the clamping relationship between the clamping piece one 5 and the connecting assembly 4. After the water retaining is completed, the staff presses the releasing assembly one 6, so that the clamping relationship between the clamping piece one 5 and the connecting assembly 4 is released, which is convenient for subsequent carrying and transportation of the water retaining device.

[0038] As shown in Figure 2 and Figure 4 shown, the buffer assembly 2 is fixedly provided with a pushing assembly 7, and the pushing assembly 7 is slidingly arranged on the side wall of the water baffle 1. The lower part of the other side outer wall of the water baffle 1 is fixedly provided with a bottom plate 9. The support rod 8 is rotatably arranged between the water baffle 1 and the bottom plate 9. The buffer assembly 2 can push the support rod 8 to slide on the bottom plate 9 through the pushing assembly 7, so as to adjust the support angle. The lower end of the support rod 8 is symmetrically provided with a pair of clamping pieces two 20, and the clamping pieces two 20 can form a clamping relationship with the bottom plate 9. A pair of release assemblies two 10 are symmetrically arranged on the bottom plate 9. The release assemblies two 10 are used to release the clamping relationship between the clamping pieces two 20 and the bottom plate 9. When the buffer assembly 2 is retracted during water blocking, the support rod 8 is pushed to slide on the bottom plate 9 through the pushing assembly 7, so as to adjust the deflection angle of the support rod 8 on the bottom plate 9. In turn, the support force can be dynamically adjusted according to the size of the water flow impact. The clamping pieces two 20 are used to limit the support rod 8, so as to prevent the support rod 8 from sliding off the bottom plate 9. After use, the clamping relationship between the clamping pieces two 20 and the bottom plate 9 is released through the release assemblies two 10, so as to facilitate subsequent storage and transportation.

[0039] As shown in Figure 6 , the water baffle 1 is internally provided with a containing cavity 11. The water baffle 1 is internally provided with a mounting groove 12 and a plug-in groove 13, respectively. The mounting groove 12 and the plug-in groove 13 are arranged on both sides of the containing cavity 11, and the mounting groove 12 and the plug-in groove 13 are concentrically arranged.

[0040] As shown in Figures 4-5 , the buffer assembly 2 comprises a mounting frame 21 fixedly installed in the containing cavity 11. A pair of limiting grooves 22 are symmetrically arranged on the inner walls of both sides of the mounting frame 21. A sliding seat 23 is slidingly installed in the interiors of the two limiting grooves 22. The side wall of the sliding seat 23 and the inner side wall of the limiting groove 22 are elastically connected through a spring one 24. A pair of supports 25 are fixedly installed on the side wall of one side of the sliding seat 23 facing the lifting plate 3. Two rollers one 26 are rotatably installed on the two supports 25.

[0041] As shown in Figure 4 , the lifting plate 3 comprises an extension plate main body 31 vertically slidingly installed in the containing cavity 11. The bottom of the extension plate main body 31 is provided with an inclined surface 32. A fixed plate 33 is fixedly installed on the side wall of the extension plate main body 31. The bottom surface of the fixed plate 33 and the side wall of the containing cavity 11 are elastically connected through a spring two 34. The side wall of the extension plate main body 31 in contact with the containing cavity 11 is coated with a material that reduces friction, which is used to reduce the frictional resistance when the extension plate main body 31 slides, so that the extension plate main body 31 can slide smoothly.

[0042] Specifically, the cofferdam emergency water retaining device is first fixed on the ground by the fixing device (prior art, not shown in the figure) during use. During water retaining, when the water flow impacts the sliding seat 23, the sliding seat 23 will retract towards the inside of the containing cavity 11 and compress the spring 24. During the retraction of the sliding seat 23, the bracket 25 is driven to contact the inclined surface 32 of the extension plate body 31 through the roller 26, which causes the roller 26 to exert pressure on the inclined surface 32. Due to the small friction between the extension plate body 31 and the containing cavity 11, the extension plate body 31 rises upwards inside the containing cavity 11 under the force, thereby increasing the water retaining height. Since the retraction degree of the sliding seat 23 is determined by the size of the water flow impact, when the water flow impact is large, the retraction degree of the sliding seat 23 is large, and the rising height of the extension plate body 31 is higher, which can prevent the water from overflowing due to excessive water flow impact. Conversely, when the water flow impact is small, the retraction degree of the extension plate body 31 is small, and the rising height of the extension plate body 31 is smaller or even not rising, which does not affect the water retaining effect. Such a design can achieve the effect of dynamic water retaining.

[0043] To solve the technical problems of the existing cofferdam emergency water retaining device, such as Figures 5-8 as shown in the drawings, the following preferred technical solutions are provided:

[0044] As shown in Figure 5 , Figures 7-8 , the arc-shaped plate 27 is fixedly installed on the side wall of the sliding seat 23 towards the lifting plate 3, as shown in Figures 6-7 , the connecting assembly 4 includes an insertion rod 41 slidingly installed in the installation groove 12, the end of the insertion rod 41 close to the arc-shaped plate 27 is provided with an arc surface, the top surface and the bottom surface of the end of the insertion rod 41 close to the arc-shaped plate 27 are respectively fixedly installed with installation plates 42, the side wall of each installation plate 42 is elastically connected with the side wall of the inner cavity of the containing cavity 11 through springs 43, and the side wall of each installation plate 42 is respectively fixedly installed with clamping pieces 44, which can form a clamping relationship with the clamping piece 1 5.

[0045] As shown in Figure 8 , the clamping piece 1 5 includes an insertion cylinder 51 fixedly installed on the side wall of the inner cavity of the containing cavity 11, a bayonet 52 is formed on the circumferential side wall of the insertion cylinder 51, and the clamping piece 44 is provided with an elastic clamping bead, which can form a clamping relationship with the bayonet 52.

[0046] As shown in Figure 5 and Figure 8As shown, the release assembly one 6 includes two top rods 61 which are slidably installed in the cavity side wall of the accommodating cavity 11, and the two top rods 61 are fixedly installed with a handle 63 at one end outside the water baffle 1, and the handle 63 is elastically connected with the water baffle 1 through the spring four 62, which is used to reset the release assembly one 6.

[0047] Due to the retraction of the sliding seat 23, the arc-shaped plate 27 moves towards the extension plate body 31, and in the process of moving, the arc-shaped plate 27 cooperates with the arc surface of the insertion rod 41 to push the insertion rod 41 to extend outside the mounting groove 12. When the water flow is too large, the sliding seat 23 reaches the maximum retraction distance, and at this time, the insertion rod 41 extends to the maximum distance outside the mounting groove 12, and the insertion rod 41 is inserted into the insertion slot 13 of the adjacent water baffle 1. At the same time, the clamping piece three 44 is inserted into the insertion cylinder 51, and the elastic clamping bead on the clamping piece three 44 is clamped into the clamping port 52, so that a limiting relationship is formed, which is used to limit the insertion rod 41 and prevent the insertion rod 41 from retracting. Through the above arrangement, the two adjacent water baffles 1 are in a connected state, which can enhance the cooperation between the water baffles 1, and further improve the water blocking effect.

[0048] After the water blocking is completed, the handle 63 and the two top rods 61 are pushed to press the elastic clamping bead on the clamping piece three 44, so that the elastic clamping bead is pushed out of the clamping port 52, and the clamping relationship between the elastic clamping bead and the clamping port 52 is released. Under the action of the elastic force of the spring three 43, the insertion rod 41 is retracted into the mounting groove 12, and the connection between the two water baffles 1 is released, which is conducive to the subsequent disassembly and transportation of the water blocking device.

[0049] In order to solve the technical problem that the existing cofferdam emergency water blocking device cannot adjust the supporting force according to the impact force of the water flow during use, like Figures 2-3 and Figures 8-11 As shown, the following preferred technical solutions are provided:

[0050] As shown in Figure 4 and Figure 8 The sliding seat 23 is fixedly installed with a push rod 71 on the side wall facing the extension plate body 31, and the push rod 71 is rotatably installed with a roller two 72 at one end close to the supporting rod 8.

[0051] As shown in Figure 4 and Figure 9 The bottom plate 9 includes a plate body 91 fixedly installed on the other side of the water baffle 1, and an arc-shaped sliding groove 92 is formed in the plate body 91. A plurality of clamping grooves 93 are formed in the inner walls of the arc-shaped sliding groove 92, and the clamping grooves 93 farthest from the supporting rod 8 are the deepest, which are used to position the clamping piece two 20 and prevent the clamping piece two 20 from sliding off the bottom plate 9.

[0052] As Figures 10-11 shown, the lower end of the support rod 8 is symmetrically embedded with a pair of semicircular blocks 201, and the semicircular blocks 201 and the support rod 8 are elastically connected through spring five 202, and the semicircular blocks 201 can form a clamping relationship with the clamping groove 93.

[0053] The release assembly two 10 includes a top post 101 inserted into a pair of clamping grooves 93 farthest from the support rod 8, and the top post 101 is elastically connected between the outer end of the clamping groove 93 and the plate body 91 through spring six 102.

[0054] Specifically, in the process of water blocking, when the sliding seat 23 is retracted, the support rod 8 is pushed to slide inside the arc-shaped sliding groove 92 through the push rod 71 and the second roller 72, and when the semicircular blocks 201 are aligned with the clamping grooves 93, the semicircular blocks 201 can be clamped into the inside of the clamping grooves 93 under the elastic force of the spring five 202, achieving positioning effect and fixing the support angle; since the end of the semicircular block 201 is semicircular, as the impact force continues to increase, the semicircular block 201 is squeezed out of the inside of the clamping groove 93, so that the support rod 8 slides inside the arc-shaped sliding groove 92 again until the semicircular block 201 is clamped into the inside of the next clamping groove 93, and so on, until the support force and the impact force are balanced; since the pair of clamping grooves 93 farthest from the support rod 8 is the deepest, when the semicircular block 201 is clamped into this clamping groove 93, the extension distance of the semicircular block 201 becomes longer, so that the distance of the semicircular block 201 inserted into this clamping groove 93 becomes larger, and then the semicircular end of the semicircular block 201 is completely inserted into the inside of this clamping groove 93, at this time, even if the impact force continues to increase, the semicircular block 201 cannot be squeezed out of the inside of this clamping groove 93, and the support rod 8 can be prevented from sliding off the arc-shaped sliding groove 92.

[0055] Through the above setting, the deflection angle of the support rod 8 on the bottom plate 9 can be adjusted, and then the support force can be dynamically adjusted according to the size of the water flow impact, the clamping piece two 20 is used to limit the support rod 8, preventing the support rod 8 from sliding off the bottom plate 9, after use, by pressing the top post 101, the semicircular block 201 is ejected from the inside of the clamping groove 93 through the top post 101, and then the clamping relationship between the semicircular block 201 and the pair of clamping grooves 93 farthest from the support rod 8 is released, so that the support rod 8 can be stored for subsequent transportation.

[0056] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0057] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. An emergency water-blocking device for a cofferdam, comprising a water-blocking plate (1), characterized in that: A buffer assembly (2) is provided on the outer wall of one side of the baffle plate (1). A lifting plate (3) is vertically slidably provided inside the baffle plate (1). A connecting assembly (4) is slidably provided inside the baffle plate (1). A snap-fit ​​part (5) is fixedly provided inside the baffle plate (1), and a snap-fit ​​relationship can be formed between the snap-fit ​​part (5) and the connecting assembly (4). A release assembly (6) is slidably provided on the outer wall of the other side of the baffle plate (1). The release assembly (6) is used to release the snap-fit ​​relationship between the snap-fit ​​part (5) and the connecting assembly (4). A pushing assembly (7) is fixedly provided on the buffer assembly (2), and the pushing assembly (7) is slidably provided through the buffer assembly (2). A base plate (9) is fixedly installed on the lower part of the outer wall of the other side of the baffle plate (1). A support rod (8) is rotatably installed between the base plate (9) and the baffle plate (1). The buffer assembly (2) can push the support rod (8) to slide on the base plate (9) by pushing the push assembly (7) to achieve the adjustment of the support angle. A pair of snap-fit ​​parts (20) are symmetrically installed at the lower end of the support rod (8), and the snap-fit ​​parts (20) and the base plate (9) can form a snap-fit ​​relationship. A pair of release components (10) are symmetrically installed on the base plate (9). The release components (10) are used to release the snap-fit ​​relationship between the snap-fit ​​parts (20) and the base plate (9).

2. The emergency water-blocking device for a cofferdam according to claim 1, characterized in that: The baffle plate (1) has an internal cavity (11) and an internal mounting groove (12) and a plug groove (13). The mounting groove (12) and the plug groove (13) are respectively located on both sides of the cavity (11) and are concentrically arranged.

3. The emergency water-blocking device for a cofferdam according to claim 2, characterized in that: The buffer assembly (2) includes a mounting frame (21) fixedly installed in the receiving cavity (11). A pair of limiting grooves (22) are symmetrically opened on the inner walls on both sides of the mounting frame (21). A slide block (23) is slidably installed inside the two limiting grooves (22). The side wall of the slide block (23) and the inner side wall of the limiting groove (22) are elastically connected by a spring (24). A pair of brackets (25) are fixedly installed on the outer wall of the slide block (23) facing the lifting plate (3). A roller (26) is rotatably installed on the two brackets (25).

4. The emergency water-blocking device for a cofferdam according to claim 2, characterized in that: The lifting plate (3) includes an extension plate body (31) that is vertically slidably installed in the receiving cavity (11). The bottom of the extension plate body (31) is provided with an inclined surface (32). A fixing plate (33) is fixedly installed on the side wall of the extension plate body (31). The bottom surface of the fixing plate (33) and the side wall of the receiving cavity (11) are elastically connected by a spring (34). The side wall of the extension plate body (31) that contacts the receiving cavity (11) is coated with a material that reduces friction.

5. The emergency water-blocking device for a cofferdam according to claim 2, characterized in that: An arc-shaped plate (27) is fixedly installed on the outer wall of the slide (23) facing the lifting plate (3). The connecting component (4) includes a plug rod (41) that is slidably installed inside the mounting groove (12). The end of the plug rod (41) near the arc-shaped plate (27) is set as an arc surface. Mounting plates (42) are fixedly installed on the top and bottom surfaces of the end of the plug rod (41) near the arc-shaped plate (27). The side wall of each mounting plate (42) is elastically connected to the side wall of the cavity (11) through spring three (43). A snap-fit ​​three (44) is fixedly installed on the side wall of each mounting plate (42). The snap-fit ​​three (44) can form a snap-fit ​​relationship with the snap-fit ​​one (5).

6. The emergency water-blocking device for a cofferdam according to claim 2, characterized in that: The first snap-fit ​​component (5) includes a tube (51) fixedly installed on the side wall of the inner cavity of the receiving cavity (11). A slot (52) is provided on the circumferential side wall of the tube (51). The third snap-fit ​​component (44) is provided with an elastic bead, which can form a snap-fit ​​relationship with the slot (52).

7. The emergency water-blocking device for a cofferdam according to claim 2, characterized in that: Release assembly 1 (6) includes two push rods (61) that are slidably mounted on the inner wall of the receiving cavity (11). The two push rods (61) are fixedly mounted with a handle (63) at one end outside the baffle plate (1), and the handle (63) and the baffle plate (1) are elastically connected by a spring 4 (62).

8. The emergency water-blocking device for a cofferdam according to claim 4, characterized in that: A push rod (71) is fixedly installed on the side wall of the slide (23) facing the extension plate body (31), and a roller (72) is rotatably installed on the end of the push rod (71) near the support rod (8).

9. The emergency water-blocking device for a cofferdam according to claim 1, characterized in that: The base plate (9) includes a plate (91) fixedly installed on the lower part of the outer wall on the other side of the baffle plate (1). An arc-shaped groove (92) is provided on the plate (91). Several pairs of slots (93) are provided on the inner walls of both sides of the inner cavity of the arc-shaped groove (92). The pair of slots (93) farthest from the support rod (8) has the deepest depth.

10. The emergency water-blocking device for a cofferdam according to claim 9, characterized in that: A pair of semicircular blocks (201) are symmetrically and slidably installed at the lower end of the support rod (8), and the semicircular blocks (201) and the support rod (8) are elastically connected by spring five (202), and the semicircular blocks (201) can form a snap-fit ​​relationship with the slot (93); The second release component (10) includes a top post (101) inserted into the pair of slots (93) furthest from the support rod (8). The end of the top post (101) located outside the slot (93) is elastically connected to the plate (91) by a spring (102).

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