A detachable PVC cofferdam facility

Abstract

The application discloses detachable PVC cofferdam facilities and belongs to the technical field of building construction. The detachable PVC cofferdam facility comprises a bottom plate, a baffle is fixedly arranged above the bottom plate, a plurality of uniformly distributed sliding grooves are formed in the horizontal direction of the baffle, a base for forming a closed space with a wall body is fixedly arranged on the baffle, a plurality of vertical plates are fixedly arranged on the upper side of the base in parallel with each other, grooves are arranged on the upper end surface of the base and the two side walls of the vertical plate in the longitudinal direction, the cross section of the groove on the base is in the shape of a Chinese character 'k', a first PVC plate is slidingly arranged between every two adjacent vertical plates, a fixing mechanism for limiting and clamping the first PVC plate is arranged on the base, a partition plate is slidingly arranged on the vertical direction of the side wall of the first PVC plate, a telescopic supporting rod is hinged to the side of the vertical plate opposite to the side on which the partition plate is slidingly arranged, and a transmission unit for controlling the change of the supporting angle between the supporting rod and the vertical plate is arranged on the partition plate.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building construction, and particularly relates to a detachable PVC cofferdam facility. BACKGROUND

[0002] The cofferdam refers to a temporary enclosure structure built for the construction of permanent water conservancy facilities in water conservancy construction. Its function is to prevent liquid and soil from entering the construction site of the building, so as to drain water in the cofferdam, excavate the foundation pit, and build the building. The sodium hypochlorite dosing room and the citric acid dosing room need to be set on the concrete platform, and the cofferdam is poured with concrete around to prevent the overflow of the liquid medicine and cause damage to the surrounding equipment.

[0003] The traditional cofferdam facility is a closed space composed of single-row, double-row or lattice-shaped steel sheet piles. Each component is scattered and assembled on site. During construction, the cofferdam, steel casing, support structure and other components need to be transported, positioned and installed multiple times. For example, the publicly disclosed patent No. CN217998125U discloses a detachable water conservancy construction cofferdam, which comprises a stand and a steel sheet, and further comprises a support assembly. The four stands are arranged in parallel. The stand is provided with a slot for installing the steel sheet. The steel sheet is arranged in parallel. The steel sheet is provided with a clamping groove. The adjacent two steel sheets are clamped. The multiple steel sheets and the four stands jointly form a group of rectangular frame structure water conservancy construction cofferdam body. The support assembly is a rectangular frame structure. The support assembly is located in the water conservancy construction cofferdam body. The support assembly comprises a limiting piece, a connecting piece, an adapter and a first bolt. The adapter is L-shaped. Through the design of the slot on the stand and the clamping groove on the steel sheet, the steel sheet can be assembled conveniently.

[0004] However, the above-mentioned disclosed facility has the following problems in use. With the increase of the solution in the cofferdam facility, the pressure on the side wall of the combined cofferdam gradually increases, causing cracks between the plates connected by sealing glue, thereby affecting the air tightness of the cofferdam as a whole. The deformation of the cofferdam base of the facility caused by the pressure affects the next use of the facility.

[0005] Therefore, the present application provides a detachable PVC cofferdam facility to solve the above-mentioned problems. SUMMARY

[0006] The purpose of the present application is to solve the problems in the prior art that the above-mentioned disclosed facility has the following problems in use. With the increase of the solution in the cofferdam facility, the pressure on the side wall of the combined cofferdam gradually increases, causing cracks between the plates connected by sealing glue, thereby affecting the air tightness of the cofferdam as a whole. The deformation of the cofferdam base of the facility caused by the pressure affects the next use of the facility. A detachable PVC cofferdam facility is provided.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A detachable PVC cofferdam facility includes a base plate, a baffle plate fixedly installed on the top of the base plate, multiple evenly distributed grooves opened in the transverse direction of the baffle plate, a base plate fixedly installed on the baffle plate to form a sealed space with the wall, multiple parallel vertical plates fixedly installed on the top of the base plate, grooves provided on the upper end face of the base plate and the two longitudinal side walls of the vertical plates, and the cross-section of the grooves on the base plate is convex, a first PVC plate is slidably installed between each pair of adjacent vertical plates, a fixing mechanism for limiting and locking the first PVC plate is provided on the base plate, a partition plate is slidably installed in the vertical direction of the side wall of the first PVC plate, a telescopic support rod is hinged on the side of the vertical plate opposite to the side where the partition plate is slidably installed, and a transmission unit is provided on the partition plate to control and change the support angle between the support rod and the vertical plate;

[0009] The transmission unit includes multiple uniformly distributed cylinders fixedly mounted on the base plate. Multiple sets of support components are rotatably mounted on the lower end surface of the partition plate. Each set of support components includes two first connecting rods rotatably connected to the base plate. The two first connecting rods are mirror images of each other. A sleeve is slidably mounted on the outer circumferential surface of the cylinder. One end of the outer circumferential surface of the sleeve is rotatably connected to the first connecting rod, and the other end of the outer circumferential surface of the sleeve is rotatably connected to the support rod. A first spring is fixedly mounted between the end of the sleeve away from the first connecting rod and the side wall of the base plate. Each set of support components is in the same plane as the connected cylinder and the slide groove.

[0010] Preferably, a horizontal plate is fixedly installed on the top side wall of the first PVC board, and a second PVC board is fixedly installed on the other end of the horizontal plate. A protrusion is fixedly installed on one end of the second PVC board in the horizontal direction, and a groove that engages with the protrusion is fixedly installed on the other end of the second PVC board. Multiple second PVC boards are connected to each other to form a water-proof unit, and a rubber sealing water-stop strip is provided at the connection between the protrusion and the groove of two adjacent PVC boards.

[0011] Preferably, the fixing mechanism comprises a cavity formed in the first PVC plate, a long plate slidingly arranged in the cavity in the vertical direction, two shaft bodies fixedly arranged in the groove in the base and extending along the direction of the groove, and two clamping plates movably connected to the two shaft bodies, wherein the clamping plates are slidingly connected to the first PVC plate, the bottom end of the long plate is hingedly connected to the two clamping plates, a plurality of second springs are fixedly arranged between the top end of the long plate and the inner wall of the top of the cavity, a plurality of adjusting plates are fixedly arranged on the side wall of the long plate and slidingly connected to the first PVC plate, and the first PVC plate is provided with a positioning unit for fixing the position of the adjusting plate.

[0012] Preferably, the positioning unit comprises two second connecting rods rotatably arranged on the outer circumferential surface of the adjusting plate, a positioning rod fixedly arranged at the other end of the second connecting rod, and a positioning groove fixedly arranged on the side wall of the first PVC plate and matched with the positioning rod, wherein the length of the second connecting rod is less than the distance between the adjusting plate and the positioning groove when the facility is in an idle state.

[0013] Preferably, the outer circumferential surface of the cylinder is fixedly provided with a protruding plate, the inner wall of the sleeve is provided with a clamping groove matched with the protruding plate, and the length of the first connecting rod is less than half the width of the partition plate.

[0014] Preferably, the telescopic supporting rod comprises a fixed end rotatably connected to the vertical plate and a telescopic end rotatably connected to the sleeve, the telescopic end is slidingly connected to the fixed end, a third spring is fixedly arranged between the inside of the fixed end and the bottom end of the telescopic end, a blocking device is slidingly arranged on the side wall of the telescopic end, a limiting groove matched with the blocking device is formed in the side wall of the fixed end, the cross section of the blocking device is arranged in a right triangle, and the right angle side of the blocking device is close to the fixed end.

[0015] Preferably, the partition plate is fixedly provided with a liquid outlet, a valve is fixedly arranged below the liquid outlet, a bellows is fixedly connected to the other end of the valve, and the bellows slidingly penetrates the baffle.

[0016] Preferably, a layer of high air-tightness rubber pad is fixedly arranged on the lateral side wall of the partition plate.

[0017] Preferably, a layer of anti-skid rubber sleeve is sleeved on the outer circumferential surface of the positioning rod, and the groove width of the positioning groove is not less than the diameter of the positioning rod.

[0018] An operation method of a detachable PVC cofferdam facility, comprising the following steps:

[0019] S1, when using the facility, first fix the bottom plate of the facility at a predetermined position, then fix and limit it with bolts, then after positioning, install the prepared first PVC plate through the groove on the vertical plate, so that the first PVC plate after installation and fixation is combined with the concrete wall to form a closed space capable of storing materials;

[0020] S2, after the facility is assembled, the staff can pour the solution material to be stored in the facility, and as the content of the added solution increases, the pressure borne by the partition plate increases, the pressure borne by the partition plate moves downward along the first PVC plate, when the partition plate moves downward, the sleeve slidingly arranged on the cylinder is pushed by the first connecting rod to move towards each other, in the process of moving the sleeve, the support rod is driven to move, so that the angle between the support rod and the vertical plate is changed, when the position of the partition plate is at the bottom end of the first PVC plate, the sliding distance of the sleeve is far, the angle between the support rod and the vertical plate is relatively large, the supporting force of the support rod to the vertical plate is large, when the position of the partition plate is at the top end of the first PVC plate, the sliding distance of the sleeve is short, the angle between the support rod and the vertical plate is relatively small, the supporting force of the support rod to the vertical plate is reduced;

[0021] S3, the height position of the partition plate is controlled by the elastic force of the first spring, so that the horizontal plane in the space is at a high position, which is convenient for the staff to observe, and the angle between the support rod and the vertical plate is controlled to ensure the stability of the vertical plate during use.

[0022] In summary, the technical effects and advantages of the present application are:

[0023] 1. By arranging the vertical plate on the baffle and the first PVC plate slidingly arranged on the vertical plate, the installation of the single PVC plate into the vertical plate can complete the assembly of the facility during installation;

[0024] 2. By slidingly arranging the partition plate on the second PVC plate, when the staff adds solution to the cofferdam after the facility is assembled, the greater the pressure borne by the partition plate as the solution in the cofferdam increases, in the process of moving the partition plate downward, the sleeve is driven to move by the first connecting rod, the sleeve drives the support rod to rotate, the angle between the support rod and the vertical plate increases, the supporting effect of the support rod to the vertical plate increases, and the stability of the whole facility is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall structure diagram of the present application;

[0026] Figure 2 It is the side view structure diagram of the present application;

[0027] Figure 3 It is the combination diagram of the base and vertical plate of the present application;

[0028] Figure 4 The first PVC plate and the second PVC plate are combined in the application;

[0029] Figure 5 The sleeve in the structure of the application is shown in the figure;

[0030] Figure 6 The first PVC plate in the structure of the application is shown in the figure in the locked state;

[0031] Figure 7 The sleeve in the structure of the application is shown in the figure; Figure 6 The enlarged structure of A in the figure is shown in the figure;

[0032] Figure 8 The first PVC plate in the structure of the application is shown in the figure in the relaxed state;

[0033] Figure 9 The sleeve in the structure of the application is shown in the figure; Figure 8 The enlarged structure of B in the figure is shown in the figure;

[0034] Figure 10 The internal structure of the support rod in the structure of the application is shown in the figure.

[0035] In the figure: 1, bottom plate; 2, baffle; 3, sliding groove; 4, base; 5, vertical plate; 6, recess; 7, first PVC plate; 8, partition plate; 9, support rod; 10, cylinder; 11, first connecting rod; 12, sleeve; 13, horizontal plate; 14, protruding block; 15, second PVC plate; 16, notch; 17, cavity; 18, long plate; 19, shaft body; 20, clamping plate; 21, second spring; 22, adjusting plate; 23, second connecting rod; 24, positioning rod; 25, positioning groove; 26, third spring; 27, barrier; 28, limiting groove; 29, liquid outlet; 30, valve; 31, bellows. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments of the application.

[0037] This invention provides a detachable PVC cofferdam facility. By using a partition slidably mounted on a second PVC plate, after the facility is assembled, workers can pour the solution material to be stored into the facility. As the added solution content increases, the pressure on the partition increases, causing it to move downwards along the first PVC plate. During this downward movement, the partition pushes a sleeve slidably mounted on a cylinder via a first connecting rod, enabling it to move towards the other side. This movement of the sleeve drives the support rod, thereby changing the angle between the support rod and the vertical plate. When the partition is at the bottom of the first PVC plate, the sleeve's sliding distance... As the distance increases, the angle between the support rod and the vertical plate becomes larger relative to the initial state, resulting in a greater supporting force of the support rod on the vertical plate. When the partition plate is at the top of the first PVC plate, the sleeve sliding distance is short, the angle between the support rod and the vertical plate decreases relative to the initial state, and the supporting force of the support rod on the vertical plate decreases. This solves the problem in the prior art where, as the solution in the aforementioned disclosed facilities increases, the pressure on the sidewalls of the combined cofferdam gradually increases, causing cracks to form between the plates connected by the sealant, thus affecting the overall airtightness of the cofferdam. The pressure also causes deformation of the cofferdam base, affecting the facility's future use.

[0038] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0039] Reference Figures 1-3 A detachable PVC cofferdam facility includes a base plate 1, a baffle 2 fixedly installed above the base plate 1, multiple evenly distributed sliding grooves 3 opened in the transverse direction of the baffle 2, a base 4 fixedly installed on the baffle 2 to form a sealed space with the wall, multiple vertical plates 5 fixedly installed above the base 4, grooves 6 are provided on the upper end surface of the base 4 and the two longitudinal side walls of the vertical plates 5, and the cross-section of the grooves 6 on the base 4 is convex, and a first PVC plate 7 is slidably installed between each two adjacent vertical plates 5.

[0040] Reference Figures 2-4The top end side wall of the first PVC plate 7 is fixedly provided with a horizontal plate 13, the other end of the horizontal plate 13 is fixedly provided with a second PVC plate 15, one end of the second PVC plate 15 in the horizontal direction is fixedly provided with a protrusion 14, the other end of the second PVC plate 15 is fixedly provided with a notch 16 engaged with the protrusion 14, the second PVC plates 15 are connected with each other to form a waterproof unit, and rubber sealing water stop strips are arranged at the connection positions of the protrusions 14 and the notches 16 of the adjacent two second PVC plates 15, the first PVC plate 7 is inserted into the groove 6 on the vertical plate 5 when the cofferdam is assembled, and the second PVC plate 15 can be engaged with the adjacent protrusion 14 and notch 16 during the installation process, the sealing water stop strips are added to the connection positions of the two, so that the facility has good air tightness after being assembled, the facility has good safety, the staff can quickly position and fix during the assembly and installation, the time required by the staff during the installation is saved, and the work efficiency is improved.

[0041] The base 4 is provided with a fixing mechanism for limiting and clamping the first PVC plate 7.

[0042] Referring to Figures 5-7 The fixing mechanism comprises a cavity 17 formed in the first PVC plate 7, a long plate 18 slidingly arranged in the cavity 17 in the vertical direction, two shaft bodies 19 fixedly arranged in the groove 6 in the base 4 and extending along the groove 6, and clamping plates 20 movably connected to the two shaft bodies 19, wherein the clamping plates 20 are slidingly connected between the first PVC plate 7, the bottom end of the long plate 18 is hingedly connected between the two clamping plates 20, a plurality of second springs 21 are fixedly arranged between the top end of the long plate 18 and the top inner wall of the cavity 17, a plurality of adjusting plates 22 are fixedly arranged on the side wall of the long plate 18 and penetrating through the first PVC plate 7 and slidingly connected between the first PVC plate 7, and the first PVC plate 7 is provided with a positioning unit for fixing the position of the adjusting plate 22, through the long plate 18 slidingly arranged in the cavity 17 of the first PVC plate 7, the staff can first push the long plate 18 during the installation, the long plate 18 can rise and compress the second springs 21 between the long plate 18 and the top end of the cavity 17, the clamping plates 20 movably connected to the bottom end of the long plate 18 rotate during the rising process of the long plate 18, and the clamping plates 20 are limited by the shaft bodies 19 during the rotation process, so that the clamping plates 20 can retract into the cavity 17 of the first PVC plate 7, then the first PVC plate 7 is inserted into the groove 6, at this time, the elastic force of the second springs 21 makes the long plate 18 move downward to push the clamping plates 20 to move along the shaft bodies 19, and the clamping plates 20 are clamped with the convex-shaped groove 6 on the base 4, so as to fix and limit the first PVC plate 7.

[0043] Referring to Figures 7-9The positioning unit comprises two second connecting rods 23 rotatably arranged on the outer circumferential surface of the adjusting plate 22, a positioning rod 24 fixedly arranged at the other end of the second connecting rod 23, and a positioning groove 25 fixedly arranged on the side wall of the first PVC plate 7 and matched with the positioning rod 24. When the facility is in an idle state, the length of the second connecting rod 23 is smaller than the distance between the adjusting plate 22 and the positioning groove 25. By arranging the second connecting rod 23 on the adjusting plate 22, the position of the adjusting plate 22 can be controlled by the staff as needed. The staff can simply and conveniently pull the positioning rod 24. After the staff adjusts the long plate 18 in the first PVC plate 7 to a suitable position by pulling the positioning rod 24, the staff can hang and buckle the positioning rod 24 on the positioning groove 25, so as to avoid the staff from manually stretching for a long time. By arranging the length of the second connecting rod 23 to be smaller than the distance between the adjusting plate 22 and the positioning groove 25, when the positioning rod 24 is hung and buckled on the positioning groove 25, the second spring 21 is in a compressed state and has a downward pushing force on the long plate 18.

[0044] With reference to Figure 1 and Figure 7 A layer of anti-skid rubber sleeve is sleeved on the outer circumferential surface of the positioning rod 24, and the groove width of the positioning groove 25 is not less than the diameter of the positioning rod 24. By arranging the anti-skid rubber sleeve on the outer circumferential surface of the positioning rod 24, the friction between the palm of the staff and the rubber sleeve is increased during use, so as to avoid the situation of rod disengagement and improve the safety of the facility.

[0045] The vertical direction of the side wall of the first PVC plate 7 is slidably provided with a partition plate 8, and the side opposite to the partition plate 8 of the vertical plate 5 is hingedly provided with an extension type support rod 9. The partition plate 8 is provided with a transmission unit for controlling the support angle between the support rod 9 and the vertical plate 5.

[0046] The transmission unit comprises a plurality of uniformly distributed cylinders 10 fixedly arranged on the bottom plate 1. A plurality of support assemblies are rotatably arranged on the lower end surface of the partition plate 8. Each support assembly comprises two first connecting rods 11 rotatably connected between the bottom plate 1. The two first connecting rods 11 are mirror arranged. A sleeve 12 is slidably arranged on the outer circumferential surface of the cylinder 10.

[0047] With reference to Figure 1 , Figure 3 and Figure 5The outer periphery of the cylinder 10 is fixedly provided with a protruding plate, and the inner wall of the sleeve 12 is provided with a clamping groove matched with the protruding plate, and the length of the first connecting rod 11 is less than half the width of the partition plate 8. The protruding plate on the outer periphery of the cylinder 10 and the clamping groove on the sleeve 12 are arranged to realize the axial sliding of the sleeve 12 on the cylinder 10, avoid the rotation between the sleeve 12 and the cylinder 10, and ensure the stability of the device during operation. Meanwhile, the size relationship between the first connecting rod 11 and the partition plate 8 is arranged to ensure that the first connecting rod 11 will not collide with other parts of the device when supporting the partition plate 8.

[0048] One end of the outer periphery of the sleeve 12 is rotationally connected with the first connecting rod 11, and the other end of the outer periphery of the sleeve 12 is rotationally connected with the supporting rod 9.

[0049] Referring to Figure 1 , Figure 5 and Figure 10 , the telescopic supporting rod 9 includes a fixed end rotationally connected with the vertical plate 5 and a telescopic end rotationally connected with the sleeve 12. The telescopic end is slidingly connected with the fixed end, and a third spring 26 is fixedly arranged between the inside of the fixed end and the bottom end of the telescopic end. A stopper 27 is slidingly arranged on the side wall of the telescopic end, and a limiting groove 28 matched with the stopper 27 is arranged on the side wall of the fixed end. The cross section of the stopper 27 is arranged in a right triangle, and the right angle side of the stopper 27 is close to the fixed end. The supporting rod 9 is composed of the fixed end and the telescopic end, which realizes that the sleeve 12 slides along the cylinder 10 during the pressing of the partition plate 8, and drives the telescopic end of the supporting rod 9 to move along the fixed end during the sliding of the sleeve 12. The right-angled triangular stopper 27 can be clamped between the limiting groove 28 on the fixed end during the extension of the telescopic end. Since the cross section of the stopper 27 is arranged in a right triangle, the device has a certain stability.

[0050] A first spring is fixedly arranged between one end of the sleeve 12 away from the first connecting rod 11 and the side wall of the bottom plate 1, and each group of supporting assemblies and the connected cylinder 10 and sliding groove 3 are in the same plane.

[0051] Referring to Figures 1-2 , the partition plate 8 is fixedly provided with a liquid outlet 29, and the valve 30 is fixedly arranged below the liquid outlet 29. The other end of the valve 30 is fixedly connected with the corrugated pipe 31, and the corrugated pipe 31 slidingly penetrates the baffle 2. The liquid outlet 29 arranged on the partition plate 8 and the valve 30 fixedly arranged on the liquid outlet 29 are arranged to discharge the solution inside the cofferdam combination.

[0052] Referring to Figures 1-3The high air-tightness rubber pad is arranged on the lateral wall of the partition plate 8, and the high air-tightness rubber pad arranged on the lateral wall of the partition plate 8 can reduce the friction between the partition plate 8 and the lateral wall of the second PVC plate 15 when the partition plate 8 slides up and down with the water pressure in the partition plate 8, and ensure the good air-tightness of the facility.

[0053] Working principle:

[0054] S1, when using the facility, first fix the bottom plate 1 of the facility at a predetermined position, then fix and limit it by bolts, then install the prepared first PVC plate 7 through the groove 6 on the vertical plate 5, so that the first PVC plate 7 after installation and fixation and the concrete wall form a closed space capable of storing materials.

[0055] S2, after the facility is assembled, the workers can pour the solution materials to be stored in the facility, and as the content of the added solution increases, the pressure borne by the partition plate 8 increases, the partition plate 8 moves downward under the pressure, and when the partition plate 8 moves downward, the sleeve 12 slidingly arranged on the cylinder 10 is pushed by the first connecting rod 11 to move towards each other, the sleeve 12 moves in the process to drive the support rod 9 to move, so as to change the included angle between the support rod 9 and the vertical plate 5, when the position of the partition plate 8 is at the bottom end of the first PVC plate 7, the sliding distance of the sleeve 12 is far, the included angle between the support rod 9 and the vertical plate 5 is relatively large, and the support force of the support rod 9 on the vertical plate 5 is large, when the position of the partition plate 8 is at the top end of the first PVC plate 7, the sliding distance of the sleeve 12 is short, the included angle between the support rod 9 and the vertical plate 5 is relatively small, and the support force of the support rod 9 on the vertical plate 5 is small.

[0056] S3, the height position of the partition plate 8 is controlled by the elastic force of the first spring, so that the horizontal plane in the space is at a high position, which is convenient for the workers to observe, and the included angle between the support rod 9 and the vertical plate 5 is controlled to ensure the stability of the vertical plate 5 in use.

[0057] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A removable PVC cofferdam facility comprising a base plate (1), characterized in that, The bottom plate (1) is fixedly provided with a baffle (2) above it, a plurality of uniformly distributed sliding grooves (3) are formed in the transverse direction of the baffle (2), a base (4) forming a closed space with the wall body is fixedly arranged on the baffle (2), a plurality of vertical plates (5) are fixedly arranged on the upper end surface of the base (4) and the two side walls in the longitudinal direction of the vertical plates (5), recesses (6) are arranged on the upper end surface of the base (4) and the two side walls in the longitudinal direction of the vertical plates (5), and the cross section of the recess (6) on the base (4) is in the shape of a Chinese character "N". A first PVC plate (7) is slidingly arranged between every two adjacent vertical plates (5), a fixing mechanism for limiting and clamping the first PVC plate (7) is arranged on the base (4), a partition plate (8) is slidingly arranged on the side wall of the first PVC plate (7) in the vertical direction, a telescopic support rod (9) is hingedly arranged on the side opposite to the partition plate (8) of the vertical plate (5), and a transmission unit for controlling the change of the support angle between the support rod (9) and the vertical plate (5) is arranged on the partition plate (8). The transmission unit comprises a plurality of uniformly distributed cylinders (10) fixedly arranged on the bottom plate (1), a plurality of support assemblies are rotatably arranged on the lower end surface of the partition plate (8), each support assembly comprises two first connecting rods (11) rotatably connected with the partition plate (8), the two first connecting rods (11) are mirror image arranged, a sleeve (12) is slidingly arranged on the outer periphery of the cylinder (10), one end of the outer periphery of the sleeve (12) is rotatably connected with the first connecting rod (11), the other end of the outer periphery of the sleeve (12) is rotatably connected with the support rod (9), a first spring is fixedly arranged between one end of the sleeve (12) away from the first connecting rod (11) and the side wall of the bottom plate (1), and each support assembly, the connected cylinder (10) and the sliding groove (3) are in the same plane.

2. A demountable PVC cofferdam installation according to claim 1, characterised in that, A horizontal plate (13) is fixedly arranged on the top end side wall of the first PVC plate (7), a second PVC plate (15) is fixedly arranged at the other end of the horizontal plate (13), a protrusion (14) is fixedly arranged on one end of the second PVC plate (15) in the horizontal direction, a notch (16) engaged with the protrusion (14) is fixedly arranged on the other end of the second PVC plate (15), a plurality of second PVC plates (15) are connected with each other to form a waterproof unit, and a rubber sealing water stop is arranged at the connection between the protrusion (14) and the notch (16) of the adjacent two second PVC plates (15).

3. A demountable PVC cofferdam installation as claimed in claim 1, characterised in that, The fixing mechanism comprises a cavity (17) formed in the first PVC plate (7), a long plate (18) slidingly arranged in the cavity (17) in the vertical direction, two shaft bodies (19) fixedly arranged in the recess (6) in the base (4) and extending along the direction of the recess (6), and two clamping plates (20) movably connected to the two shaft bodies (19), wherein the clamping plates (20) are slidingly connected with the first PVC plate (7), the bottom end of the long plate (18) is hingedly connected with the two clamping plates (20), a plurality of second springs (21) are fixedly arranged between the top end of the long plate (18) and the top inner wall of the cavity (17), a plurality of adjusting plates (22) are fixedly arranged on the side wall of the long plate (18) and penetrating through the first PVC plate (7) and slidingly connected with the first PVC plate (7), and the first PVC plate (7) is provided with a positioning unit for fixing the position of the adjusting plate (22).

4. A demountable PVC cofferdam installation according to claim 3, characterised in that, The positioning unit comprises two second connecting rods (23) rotatably arranged on the outer circumferential surface of the adjusting plate (22), a positioning rod (24) fixedly arranged at the other end of the second connecting rod (23), and a positioning groove (25) fixedly arranged on the side wall of the first PVC plate (7) and matched with the positioning rod (24), wherein the length of the second connecting rod (23) is smaller than the distance between the adjusting plate (22) and the positioning groove (25) when the device is in an idle state.

5. A demountable PVC cofferdam installation as claimed in claim 1, wherein, The outer circumferential surface of the cylinder (10) is fixedly provided with a protruding plate, the inner wall of the sleeve (12) is provided with a clamping groove matched with the protruding plate, and the length of the first connecting rod (11) is smaller than half the width of the partition plate (8).

6. A demountable PVC cofferdam installation as claimed in claim 1, characterised in that, The telescopic supporting rod (9) comprises a fixed end rotatably connected with the vertical plate (5) and a telescopic end rotatably connected with the sleeve (12), the telescopic end is slidingly connected with the fixed end, a third spring (26) is fixedly arranged between the inside of the fixed end and the bottom end of the telescopic end, a stopper (27) is slidingly arranged on the side wall of the telescopic end, a limiting groove (28) matched with the stopper (27) is formed in the side wall of the fixed end, the cross section of the stopper (27) is arranged in a right triangle shape, and the right angle side of the stopper (27) is close to the fixed end.

7. A demountable PVC cofferdam installation as claimed in claim 1, wherein, The partition plate (8) is fixedly provided with a liquid outlet (29), a valve (30) is fixedly arranged below the liquid outlet (29), a corrugated pipe (31) is fixedly connected to the other end of the valve (30), and the corrugated pipe (31) slidingly penetrates through the baffle (2).

8. A demountable PVC cofferdam installation according to claim 1, characterised in that, A layer of high air-tightness rubber pad is fixedly arranged on the lateral side wall of the partition plate (8).

9. A demountable PVC cofferdam installation according to claim 4, characterised in that, A layer of anti-skid rubber sleeve is sleeved on the outer circumferential surface of the positioning rod (24), and the groove width of the positioning groove (25) is not less than the diameter of the positioning rod (24).

10. A method of operating a demountable PVC cofferdam installation according to any one of claims 1-9, characterized in that, The method comprises the following steps: S1, in the use of the facility, first fix the bottom plate of the facility in the predetermined position, then use the bolt to fix and limit, then complete the positioning, install the prepared first PVC plate through the groove on the vertical plate, so that the first PVC plate after installation and fixation and the concrete wall body are combined to form a closed space capable of storing materials; S2, after the facility is combined, the workers can pour the solution material to be stored in the facility, and as the content of the added solution increases, the pressure borne by the partition plate increases, the pressure received by the partition plate moves downward along the first PVC plate, when the partition plate moves downward, the sleeve slidingly arranged on the cylinder is pushed by the first connecting rod to move towards each other, in the process of moving the sleeve, the supporting rod is moved, so that the angle between the supporting rod and the vertical plate is changed, when the position of the partition plate is at the bottom end of the first PVC plate, the sliding distance of the sleeve is far, the angle between the supporting rod and the vertical plate is relatively large, the supporting force of the supporting rod to the vertical plate is large, when the position of the partition plate is at the top end of the first PVC plate, the sliding distance of the sleeve is short, the angle between the supporting rod and the vertical plate is relatively small, the supporting force of the supporting rod to the vertical plate is reduced; S3, the height position of the partition plate is controlled by the elastic force of the first spring, so that the horizontal plane in the space is at a high position, which is convenient for the workers to observe, and the angle between the supporting rod and the vertical plate is controlled to ensure the stability of the vertical plate in use.

Images