Soil retaining device for hydraulic engineering construction

Abstract

The invention relates to the technical field of hydraulic engineering, and discloses a soil retaining device for hydraulic engineering construction, which comprises a base and a vertical wall, the base comprises a wall heel plate and a wall toe plate, grooves are formed in two sides of the top end of the wall heel plate along the length direction, hinge seats are arranged in the grooves, and the vertical wall is connected with the wall heel plate through the hinge seats. A hydraulic telescopic assembly is arranged at the end, away from the wall heel plate, of each vertical wall, a fixed cone is arranged at the bottom end of the wall toe plate, balancing weights are arranged in the vertical walls, and pressing valves matched with the balancing weights are arranged in the wall faces of the vertical walls. And then the buttress is divided into a main buttress and a telescopic buttress, and a hydraulic telescopic assembly is integrally arranged on one side of the main buttress, so that the buttress provides supporting force for the vertical wall and also serves as an oil tank of hydraulic oil.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, in particular to a soil retaining device for water conservancy project construction. Background Art

[0002] The existing retaining device has certain problems when in use. Since the retaining device needs greater stability to block the soil, it is difficult to move and retract it after use, and the installation and recovery workload is large. The existing Chinese invention patent CN111501821B discloses a retaining device for water conservancy project construction. The device is easy to carry by using different components. The device can adjust different slopes through the hinged setting of the blocking component and the first base component, which is convenient for use in different situations. The supporting structure can adjust the length to match the use of the slope. However, the structure of the supporting component of the device is unreasonable. The supporting component cannot be lifted under pressure. At the same time, after pressing the column, the column drops rapidly under pressure, and may not be able to pop out at the adjacent third through hole or the column may be damaged under the impact force. Then the sixth plate of the blocking component is not provided with a drainage device. When it rains or when groundwater accumulates and cannot be discharged, it is easy to soften the foundation and easily cause the retaining component to move laterally. Summary of the invention

[0003] The purpose of the present invention is to provide a retaining device for water conservancy engineering construction, which connects adjacent vertical walls through a U-shaped counterweight block, applies pressure to a push valve at the same time, opens the push valve, opens the drainage channel, and then divides the buttress into a main buttress and a telescopic buttress, and an integrated hydraulic telescopic component is provided on one side of the main buttress, so that the buttress provides support for the vertical wall and also serves as a hydraulic oil tank, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above purpose, a retaining device for water conservancy project construction is provided, including a base and a vertical wall, the base including a wall heel plate and a wall toe plate, grooves are provided on both sides of the top of the wall heel plate along the length direction, a hinge seat is provided in the groove, the vertical wall is connected to the wall heel plate through the hinge seat, a hydraulic telescopic assembly is provided at the end of the vertical wall away from the wall heel plate, and a fixed vertebral body is provided at the bottom end of the wall toe plate.

[0005] Furthermore, the wall heel plate includes a wall heel base plate, the hinge seat is fixedly connected to the wall heel base plate by bolts, the cross-section of the wall heel base plate is a right-angled trapezoid, and also includes a rotating shaft retaining ring block, the rotating shaft retaining ring block is arranged between the opposite surfaces of the hinge seat, the rotating shaft retaining ring block is integrally connected to the wall heel plate, the top of the rotating shaft retaining ring block is a semicircular shape with an opening facing upward, and a rotating shaft rod that passes through the vertical wall is also provided between the opposite surfaces of the hinge seat.

[0006] Furthermore, the vertical wall includes a rotating shaft hole that passes through the vertical wall along the length direction, an engaging female opening is opened on one side of the vertical wall in the length direction, and an engaging male block is provided at the end away from the engaging female opening. The vertical wall is hollow, and a plurality of baffles arranged at intervals are provided in the vertical wall. The cavity between adjacent baffles constitutes a counterweight cavity, a counterweight block is provided at the top of each counterweight cavity, and a handle is provided at the top of each counterweight block.

[0007] Furthermore, the counterweight block includes a U-shaped block and a square block, and pressing blocks are provided on both sides of the U-shaped counterweight block. It also includes a drain channel, which runs through the counterweight block. The drain channel is arranged above the pressing block. A pressing groove cooperating with the pressing block is opened on the inner wall surface of the vertical wall, and a pressing valve connecting the inside and outside of the counterweight cavity is provided on the inner end surface of the vertical wall, and the pressing valve is connected to the drain channel.

[0008] Furthermore, the push valve includes an inlet pipe, a retaining mesh cover is provided at the port of the inlet pipe, the retaining mesh cover includes a retaining layer and a permeable layer; it also includes a valve housing, the valve housing is coaxially arranged with the inlet pipe, the valve housing includes an outer shell cylinder, the cross-section of the outer shell cylinder is a square frame with rounded corners, valve cover plates are provided at both ends of the outer shell cylinder, through holes connecting the inside and the outside are provided on the valve cover plates, the water inlet pipe extends from the outside of the valve housing to the inside of the valve housing along the central axis, the water inlet pipe is rotatably matched with the valve housing, and a sealing cover matching the water inlet pipe is provided on the outside of the valve cover plate of the valve housing; it also includes a threaded rod, the threaded rod passes through the valve housing and is perpendicular to the central axis of the valve housing, a sealing cover is provided at the connection between the threaded rod and the valve housing, and a pressing plate is provided at the bottom end of the threaded rod; it also includes a water outlet pipe, the water outlet pipe has the same structure as the water inlet pipe and is symmetrically arranged along the valve housing, and the inner wall surfaces of the water inlet pipe and the water outlet pipe are both provided with threads.

[0009] Furthermore, the push valve also includes a sealing sleeve, which is coaxial with the valve housing and has an I-shaped cross-section; it also includes an inner rotating cylinder coaxial with the water inlet pipe, the inner rotating cylinder is sleeved on the outside of the sealing sleeve and the inner rotating cylinder and the sealing sleeve are rotatably matched, there are two inner rotating cylinders and threaded grooves are provided on the outside of the inner rotating cylinder, the inner rotating cylinder is threadedly matched with the water inlet pipe and the water outlet pipe, a plurality of water holes connecting the inside and the outside are opened on the inner wall of the inner rotating cylinder, transmission gear rings are provided on the opposite surfaces of the two inner rotating cylinders, the sealing sleeve includes a main shaft and a sealing plate, the radius of the main shaft is smaller than the main shaft of the sealing plate, and a sealing sleeve is provided on the inner wall of the inner rotating cylinder The retaining ring and the sealing plate of the sealing sleeve are tightly attached to the retaining ring of the sealing sleeve, and a sealing cover is provided at the end of the sealing plate away from the retaining ring of the sealing sleeve; it also includes a driving gear, which is sleeved on the outside of the threaded rod and matched with the thread of the threaded rod, and the driving gear is meshed with the transmission gear rings of the two inner rotating cylinders; it also includes a water-sealing sleeve, which is coaxial with the sealing sleeve, and the water-sealing sleeve is rotatably matched with the inner rotating cylinder through the sealing cover, and the cavity between the water-sealing sleeve and the valve housing constitutes a water-passing cavity; it also includes a threaded rod sleeve arranged at the top end of the valve housing, a piston is provided at the top end of the threaded rod, and a reset spring is provided between the piston and the valve housing.

[0010] Furthermore, the hydraulic telescopic assembly includes a hydraulic sleeve and an extension rod, the extension rod and the hydraulic sleeve are slidably matched, a top extension hinged seat is provided at the top of the extension rod, and also includes a manual mounting seat, a manual pressure rod is hinged at the top of the manual mounting seat, the manual mounting seat extends upward from the hinge for a distance and then is chamfered to a horizontal state, and after extending for a distance in the horizontal state, it is chamfered again to a vertical state and extends upward, a pressure rod is provided at the bottom end of the horizontal section of the manual mounting seat, and the pressure rod is slidably matched with the manual mounting seat.

[0011] Furthermore, a hydraulic cavity is provided inside the hydraulic sleeve, an oil tank is provided in the cylinder of the hydraulic sleeve, cavities distributed at different heights are provided inside the manual mounting seat, the lower cavity at a lower position is connected with the hydraulic cavity, the upper cavity in the manual mounting seat is connected with the oil tank, a connecting cavity is provided at the lower end of the pressure rod, the connecting cavity connects the lower cavity of the manual mounting seat with the upper cavity, a first one-way valve is provided in the upper cavity, a second one-way valve is provided in the lower cavity, a pressure relief passage is provided between the upper cavity and the lower cavity, and a pressure relief valve is provided at the pressure relief passage.

[0012] Furthermore, the hydraulic telescopic assembly also includes a buttress assembly, the buttress includes a main buttress and a telescopic buttress, the cross-section of the telescopic buttress is fan-shaped, the main buttress is integrally connected with the hydraulic sleeve, a cavity is opened in the main buttress, the cavity in the main buttress is connected with the cavity in the hydraulic sleeve to form an oil tank together, and the hydraulic sleeve and the extension rod are both arc-shaped.

[0013] Furthermore, a sealing cover is provided at the connection between the outer side of the telescopic buttress and the main buttress. The telescopic buttress is hollow, barrel-shaped and opening downward. A constant pressure barrel is provided inside the telescopic buttress. The constant pressure barrel slides with the telescopic buttress, barrel-shaped and opening upward, and also includes a constant pressure spring. The two ends of the constant pressure spring are respectively connected to the telescopic buttress and the constant pressure barrel.

[0014] The present invention has the following beneficial effects over the prior art: 1. The present invention drives the inner drum to rotate through the threaded rod of the push valve, and then the water inlet pipe and the water outlet pipe move to both sides through the inner drum, thereby realizing the connection of the push valve. At the same time, the two water inlet pipes and (or) water outlet pipes relative to the push valve move to the drain channel of the counterweight block during the movement to both sides, completing the sealed connection between the push valve and the drain channel, and preventing water from leaking into the counterweight cavity during the drainage process.

[0015] 2. By dividing the buttress into a main buttress and a telescopic buttress with sliding fit, the vertical wall can be tilted within a certain angle range, and then a cavity is opened in the main buttress and connected to the oil tank of the hydraulic sleeve, so that the main buttress is used as the main storage cavity for hydraulic oil, and then by means of a constant pressure barrel and a constant pressure spring sleeved in the telescopic buttress, the hydraulic oil pressure in the oil tank of the main buttress is adjusted when the inclination angle of the vertical wall changes, thereby adjusting the pressure between the telescopic buttress and the vertical wall according to the change of the inclination angle of the vertical wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a northeast axonometric view of the earth retaining device of the present invention; Figure 2 This is a southeast axonometric view of the earth retaining device of the present invention; Figure 3 It is a schematic diagram of the wall heel plate of the present invention; Figure 4 It is a schematic diagram of the vertical wall of the present invention; Figure 5 For the present invention Figure 4 AA schematic diagram; Figure 6 This is an axonometric diagram of a hydraulic telescopic assembly of the present invention; Figure 7 For the present invention Figure 6 BB schematic diagram; Figure 8 For the present invention Figure 7 A local enlarged schematic diagram of point A; Fig. 9 Schematic diagram of installation methods of different counterweight blocks of the present invention; Fig.10 It is a schematic diagram of a U-shaped counterweight block of the present invention; Fig.11 For the present invention Fig. 9 Schematic cross-sectional view of ; Fig.12 This is an axonometric view of the push valve of the present invention; Fig.13 For the present invention Fig.12 Schematic diagram of CC; Fig.14 This is an axonometric diagram of the internal structure of the push valve of the present invention; Fig.15 For the present invention Fig.14 DD schematic diagram; Fig.16 This is a schematic diagram of the sealing sleeve of the present invention; Fig.17 A cross-sectional view of a push valve according to another embodiment of the present invention; Fig.18 It is a cross-sectional schematic diagram of the sealing sleeve of the present invention; Fig.19 It is an axonometric view of a hydraulic telescopic assembly according to another embodiment of the present invention; Fig. 20 For the present invention Fig.19 EE schematic diagram.

[0017] In the figure: 1, vertical wall; 101, female fitting; 102, male fitting; 103, handle; 104, counterweight; 105, rotating shaft hole; 106, counterweight cavity; 107, baffle; 108, pressing valve; 109, drain channel; 110, pressing block; 111, pressing slide; 112, water inlet pipe; 113, retaining net cover; 114, valve housing; 115, sealing cover; 116, threaded rod; 117, water outlet pipe; 118, pressing plate; 119, sealing sleeve; 120, threaded rod sleeve; 121, inner rotating cylinder; 122, return spring; 123, water hole; 124, piston; 125, water sealing sleeve; 12 6. Water passage cavity; 127. Driving gear; 128. Pressure cylinder; 129. Telescopic cylinder; 2. Wall heel plate; 201. Wall heel bottom plate; 202. Rotating shaft retaining ring block; 3. Wall toe plate; 4. Articulated seat; 5. Hydraulic telescopic assembly; 501. Top extension articulated seat; 502. Top extension rod; 503. Hydraulic sleeve; 504. Pressure relief valve; 505. Pressure rod; 506. Manual pressure rod; 507. Hydraulic cavity; 508. Oil tank; 509. Second one-way valve; 510. First one-way valve; 511. Manual mounting seat; 512. Main buttress; 513. Telescopic buttress; 514. Constant pressure spring; 515. Constant pressure barrel; 6. Fixed vertebral body. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In one embodiment, Figure 1-3 A retaining device for water conservancy project construction shown in the figure includes a base and a vertical wall 1, wherein the base includes a wall heel plate 2 and a wall toe plate 3, grooves are opened on both sides of the top of the wall heel plate 2 along the length direction, and a hinge seat 4 is provided in the groove. The vertical wall 1 is connected to the wall heel plate 2 through the hinge seat 4, a hydraulic telescopic component 5 is provided at the end of the vertical wall 1 away from the wall heel plate 2, and a fixed vertebral body 6 is provided at the bottom end of the wall toe plate 3.

[0020] The wall heel plate 2 includes a wall heel base plate 201, and the hinge seat 4 is fixedly connected to the wall heel base plate 201 by bolts. The cross-section of the wall heel base plate 201 is a right-angled trapezoidal shape, and also includes a rotating shaft retaining ring block 202. The rotating shaft retaining ring block 202 is arranged between the opposite surfaces of the hinge seat 4. The rotating shaft retaining ring block 202 is integrally connected to the wall heel plate 2. The top of the rotating shaft retaining ring block 202 is a semicircular shape with an opening facing upward. A rotating shaft rod that passes through the vertical wall 1 is also provided between the opposite surfaces of the hinge seat 4.

[0021] In this embodiment, the retaining device is hoisted to the installation position by a hoisting device, and then the vertical wall 1 is connected to the wall heel bottom plate 201 of the base through the hinge seat 4, and the bottom end of the vertical wall 1 is semi-cylindrical, and a rotating shaft retaining ring block 202 is provided at the top of the wall heel bottom plate 201. The top of the rotating shaft retaining ring block 202 is in an arc shape, and the opening angle of the arc is an obtuse angle. The bottom end of the vertical wall 1 is rotatably matched with the rotating shaft retaining ring block 202, so that there is no cavity between the bottom end of the vertical wall 1 and the wall heel bottom plate 201. , to avoid the problem that the vertical wall 1 cannot be corrected due to the soil filling into the cavity between the vertical wall 1 and the wall heel bottom plate 201 when rotating, and then adjust the angle between the vertical wall 1 and the base by extending and shortening the hydraulic telescopic component 5 according to the actual situation, so as to complete the adjustment of the slope of the vertical wall 1, and the soil accumulates on the end surface of the wall heel plate 2 to exert downward pressure on the wall heel plate 2, and then fix the wall toe plate 3 to the ground through the fixing vertebral body 6, thereby increasing the pressure between the base and the ground and preventing the base from sliding along the ground.

[0022] In one embodiment, Figure 4-5 As shown, the vertical wall 1 includes a rotating shaft hole 105 that passes through the vertical wall 1 along the length direction, an engaging female opening 101 is opened on one side of the vertical wall 1 in the length direction, and an engaging male block 102 is provided at the end away from the engaging female opening 101. The vertical wall 1 is hollow, and a plurality of baffles 107 arranged at intervals are provided in the vertical wall 1. The cavity between adjacent baffles 107 constitutes a counterweight cavity 106, and a counterweight block 104 is provided at the top of each counterweight cavity 106, and a handle 103 is provided at the top of each counterweight block 104.

[0023] like Figure 9-16 As shown, the counterweight block 104 includes a U-shaped block and a square block, and pressing blocks 110 are provided on both sides of the U-shaped counterweight block 104. It also includes a drain channel 109, which runs through the counterweight block 104. The drain channel 109 is arranged above the pressing block 110. A pressing groove 111 cooperating with the pressing block 110 is opened on the inner wall surface of the vertical wall 1, and a pressing valve 108 connecting the inside and outside of the counterweight cavity 106 is provided on the inner end surface of the vertical wall 1, and the pressing valve 108 is connected to the drain channel 109.

[0024] The push valve 108 includes an inlet pipe 112, a retaining mesh cover 113 is provided at the end of the inlet pipe 112, and the retaining mesh cover 113 includes a retaining layer and a permeable layer; it also includes a valve housing 114, the valve housing 114 is coaxially arranged with the inlet pipe 112, the valve housing 114 includes an outer shell cylinder, the cross section of the outer shell cylinder is a square frame with rounded corners, valve cover plates are provided at both ends of the outer shell cylinder, and through holes connecting the inside and the outside are provided on the valve cover plates, the inlet pipe 112 extends from the outside of the valve housing 114 to the inside of the valve housing 114 along the central axis direction, and the inlet pipe 112 and the valve housing 114 are coaxially arranged with each other. 4, a sealing cover 115 cooperating with the water inlet pipe 112 is provided on the outer side of the valve cover plate of the valve housing 114; it also includes a threaded rod 116, which penetrates the valve housing 114 and is perpendicular to the central axis of the valve housing 114, a sealing cover 115 is provided at the connection between the threaded rod 116 and the valve housing 114, and a pressing plate 118 is provided at the bottom end of the threaded rod 116; it also includes a water outlet pipe 117, which has the same structure as the water inlet pipe 112 and is symmetrically arranged along the valve housing 114, and the inner wall surfaces of the water inlet pipe 112 and the water outlet pipe 117 are both provided with threads.

[0025] The push valve 108 further includes a sealing sleeve 119, which is coaxial with the valve housing 114 and has an I-shaped cross section; it also includes an inner rotating cylinder 121 coaxial with the water inlet pipe 112, the inner rotating cylinder 121 is sleeved on the outside of the sealing sleeve 119 and the inner rotating cylinder 121 and the sealing sleeve 119 are rotatably matched, there are two inner rotating cylinders 121 and thread grooves are provided on the outside of each inner rotating cylinder 121, the inner rotating cylinder 121 is threadedly matched with the water inlet pipe 112 and the water outlet pipe 117, a plurality of water holes 123 connecting the inside and the outside are opened on the inner wall surface of the inner rotating cylinder 121, and transmission gear rings are provided on the opposite surfaces of the two inner rotating cylinders 121, such as Fig.18 As shown, the sealing sleeve 119 includes a main shaft and a sealing plate. The radius of the main shaft is smaller than the main shaft of the sealing plate. A sealing sleeve retaining ring is provided on the inner wall of the inner drum 121. The sealing plates of the sealing sleeve 119 are tightly attached to the sealing sleeve retaining ring. A sealing cover 115 is provided at the end of the sealing plate away from the sealing sleeve retaining ring. The sealing sleeve also includes a driving gear 127, which is sleeved on the outer side of the threaded rod 116 and threadedly matched with the threaded rod 116. The driving gear 127 is meshed with the transmission gear rings of the two inner drums 121. The water The sealing sleeve 125, the water sealing sleeve 125 is coaxial with the sealing sleeve 119, the water sealing sleeve 125 is rotatably matched with the inner rotating cylinder 121 through the sealing cover 115, and the cavity between the water sealing sleeve 125 and the valve housing 114 constitutes a water passage cavity 126; it also includes a threaded rod sleeve 120 arranged at the top end of the valve housing 114, a piston 124 is arranged at the top end of the threaded rod 116, and a return spring 122 is arranged between the piston 124 and the valve housing 114, and the return spring 122 is in a compressed state in the initial state.

[0026] In this embodiment, in order to facilitate the transportation of the vertical wall 1 and the base, the interior of the vertical wall 1 is excavated into a hollow shape, thereby reducing the weight of the vertical wall 1 and facilitating the transportation of the vertical wall 1. Then, the prefabricated counterweight block 104 at the construction site or the prefabricated strip counterweight block 104 is placed into the counterweight cavity 106 by a hoisting device, thereby completing the weight increase of the vertical wall 1 and improving the pressure bearing capacity of the vertical wall 1. Then, different vertical walls 1 are merged one by one by engaging the male block 102 and the female opening 101 to achieve the purpose of length adjustment, and then the U-shaped counterweight block 104 is placed in two adjacent vertical walls 1 to complete the fixation of adjacent different vertical walls 1. At the same time, a drainage channel 109 is provided on the counterweight block 104, and a pressing valve 108 cooperating with the drainage channel 109 is provided on the vertical wall 1. The pressing blocks 110 on both side faces of the counterweight block 104 slide downward along the pressing grooves 111 on the inner side of the vertical wall 1 and drive the pressing plate 118 of the pressing valve 108 to move downward, thereby opening the pressing valve 108 and connecting the pressing valve 108 with the drainage channel 109, thereby avoiding the problem of moisture accumulation in the soil at the front end of the wall heel plate 2 and softening the soil under the base. When the pressing plate 118 moves downward, it drives the threaded rod 116 to move downward, and the threaded rod 116 drives the return spring 122 to compress. At the same time, due to the threaded cooperation between the threaded rod 116 and the driving gear 127, the driving gear 127 rotates under the action of the threaded rod 116 (the ball screw converts the rotation into translation, and vice versa). At the same time, a limit rod (not shown in the figure) is provided at the top of the driving gear 127, and the other end of the limit rod extends to the water sealing sleeve 125. The rotation of the driving gear 127 drives the two inner rotating cylinders 121 to rotate. At the same time, due to the threaded cooperation between the inner rotating cylinder 121 and the water inlet pipe 112 and the water outlet pipe 117 and the position of the inner rotating cylinder 121 is fixed, the water inlet pipe 112 and the water outlet pipe 117 move outward until the water through hole 123 blocked by the water inlet pipe 112 and the water outlet pipe 117 is connected with the water through cavity 126. At the same time, a sealing rubber sleeve is provided on the outer side of the water inlet pipe 112 and the water outlet pipe 117, and the water inlet pipe 112 and the water outlet pipe 117 of the push valve 108 in the wall bodies on both sides of the vertical wall 1 rotate and move toward both ends, wherein the water outlet pipe 117 of the push valve 108 on the left side of the vertical wall 1 and the water inlet pipe 112 of the push valve 108 on the right side of the vertical wall 1 rotate and move into the drain channel 109 of the counterweight block 104, thereby realizing the sealed communication between the drain channel 109 and the push valve 108, preventing groundwater from pouring into the counterweight cavity 106 during the drainage process, reducing the corrosion of the vertical wall 1, and improving the service life of the vertical wall 1; In another embodiment, Fig.17As shown, the pressing plate 118 adopts a hydraulic or pneumatic method. At this time, the pressing blocks 110 on both sides of the U-shaped counterweight block 104 are removed, and specifically include a connected pressure cylinder 128 and a telescopic cylinder 129. The pressure cylinder 128 is arranged at the bottom end of the interior of the vertical wall 1. At the same time, the volume of the pressure cylinder 128 is much larger than the volume of the telescopic cylinder 129, so that the deformation of the pressure cylinder 128 is small when the telescopic cylinder 129 is extended. The pressure cylinder 128 and the telescopic cylinder 129 are connected through two pipes, and a one-way valve is provided in each pipe. In the initial state, the reset spring 122 is in a natural state. When working, when the counterweight block 104 acts on the pressure cylinder 128, the gas in the pressure cylinder 128 The body or liquid is pressed into the telescopic cylinder 129, so that the length of the telescopic cylinder 129 is extended, and the threaded rod 116 moves upward, so that the reset spring 122 is in an extended state. The other working processes of the pressing valve 108 are the same as those in the above embodiment. When the soil retaining device needs to be removed, the counterweight block 104 is lifted from the counterweight chamber 106, and the pressure on the pressure cylinder 128 is reduced. Then, under the action of the reset spring 122, the threaded rod 116 is driven to move downward, so that the water inlet pipe 112 or the water outlet pipe 117 moves from both ends of the pressing valve 108 toward the sealing sleeve 119, so that the water inlet pipe 112 or the water outlet pipe 117 is pulled out from the drain channel 109.

[0027] In one embodiment, Figure 6-8 As shown, the hydraulic telescopic assembly 5 includes a hydraulic sleeve 503 and an extension rod 502, the extension rod 502 and the hydraulic sleeve 503 are slidably matched, a top extension hinge seat 501 is provided at the top of the extension rod 502, and also includes a manual mounting seat 511, a manual pressure rod 506 is hinged at the top of the manual mounting seat 511, the manual mounting seat 511 extends upward from the hinge for a distance and then chamfers to a horizontal state, extends in the horizontal state for a distance and then chamfers again to a vertical state and extends upward, a pressure rod 505 is provided at the bottom end of the horizontal section of the manual mounting seat 511, and the pressure rod 505 and the manual mounting seat 511 are slidably matched.

[0028] A hydraulic chamber 507 is provided inside the hydraulic sleeve 503, and an oil tank 508 is opened in the cylinder of the hydraulic sleeve 503. Cavities distributed at different heights are provided inside the manual mounting seat 511, and the lower cavity at a lower position is connected with the hydraulic chamber 507, and the upper cavity in the manual mounting seat 511 is connected with the oil tank 508. A connecting cavity is opened at the lower end of the pressure rod 505, and the connecting cavity connects the lower cavity of the manual mounting seat 511 with the upper cavity. A first one-way valve 510 is provided in the upper cavity, and a second one-way valve 509 is provided in the lower cavity. A pressure relief passage is also provided between the upper cavity and the lower cavity, and a pressure relief valve 504 is provided at the pressure relief passage.

[0029] In this embodiment, when it is necessary to increase the included angle between the vertical wall 1 and the wall toe plate 3, the manual pressure rod 506 is pulled clockwise, so that the manual pressure rod 506 pushes the pressure rod 505 downward when rotating around the hinge. When the pressure rod 505 moves downward, the hydraulic oil in the connecting cavity is pressurized, and the second one-way valve 509 is opened under the action of pressure, so that the hydraulic oil in the connecting cavity enters the hydraulic cavity 507, so that the extension rod 502 moves upward, thereby pushing the vertical wall 1 to rotate counterclockwise, and then the manual pressure rod 506 is pulled counterclockwise, so that the manual pressure rod 506 pushes the pressure rod 505 upward when rotating around the hinge, and the second one-way valve 509 is closed under the action of the spring, so that the position of the extension rod 502 remains unchanged, and the first one-way valve 510 is opened under the action of the pressure difference between the upper cavity and the connecting cavity, so that the hydraulic oil in the oil tank 508 enters the connecting cavity, and then the above steps are repeated until the angle of the vertical wall 1 is adjusted to the set angle; When it is necessary to reduce the included angle between the vertical wall 1 and the wall toe plate 3, the pressure relief valve 504 is opened to connect the oil tank 508 with the hydraulic chamber 507. At this time, the extension rod 502 is extended into the hydraulic sleeve 503 under the action of external pressure. When the inclination angle of the vertical wall 1 reaches or exceeds the set angle, the pressure relief valve 504 is closed, and then the extension rod 502 is lifted out of the hydraulic sleeve 503 by the manual pressure rod 506 to fine-tune the angle until the angle of the vertical wall 1 is adjusted to the set angle.

[0030] In one embodiment, Figure 19-20 As shown, the hydraulic telescopic assembly 5 also includes a buttress assembly, the buttress includes a main buttress 512 and a telescopic buttress 513, the cross-section of the telescopic buttress 513 is fan-shaped, the main buttress 512 is integrally connected with the hydraulic sleeve 503, a cavity is opened in the main buttress 512, the cavity in the main buttress 512 is connected with the cavity in the hydraulic sleeve 503 to form an oil tank 508, and the hydraulic sleeve 503 and the jacking rod 502 are both arc-shaped.

[0031] A sealing cover is provided at the connection between the outer side of the telescopic buttress 513 and the main buttress 512. The telescopic buttress 513 is hollow, barrel-shaped and has an opening facing downward. A constant pressure barrel 515 is provided inside the telescopic buttress 513. The constant pressure barrel 515 slides with the telescopic buttress 513, is barrel-shaped and has an opening facing upward, and also includes a constant pressure spring 514. The two ends of the constant pressure spring 514 are respectively connected to the telescopic buttress 513 and the constant pressure barrel 515.

[0032] In this embodiment, the constant pressure spring 514 is in a compressed state, the angle of the oil tank 508 in the main buttress 512 is 30-45 degrees, and the end of the telescopic buttress 513 away from the manual mounting seat 511 is flush with the end of the jacking rod 502 away from the manual mounting seat 511; When the angle between the vertical wall 1 and the wall toe plate 3 needs to be increased, the operation process of the manual pressure rod 506 is the same as the operation process in the above embodiment. In particular, the telescopic buttress 513 and the flush end of the top extension rod 502 are fixedly connected to the vertical wall 1 by bolts. When the hydraulic oil enters the hydraulic chamber 507 from the oil tank 508, the constant pressure barrel 515 is pushed into the oil tank 508 by the action of the constant pressure spring 514, so that the hydraulic oil in the oil tank 508 maintains a certain pressure, and pressure is applied to the vertical wall 1 through the telescopic buttress 513 according to the interaction of forces. When it is necessary to reduce the included angle between the vertical wall 1 and the wall toe plate 3, the pressure relief valve 504 is opened to connect the oil tank 508 with the hydraulic chamber 507. At this time, the extension rod 502 is extended into the hydraulic sleeve 503 under the action of external pressure. When the inclination angle of the vertical wall 1 reaches or exceeds the set angle, the pressure relief valve 504 is closed, and then the extension rod 502 is lifted out of the hydraulic sleeve 503 by the manual pressurizing rod 506 to fine-tune the angle until the angle of the vertical wall 1 is adjusted to the set angle. At this time, the hydraulic oil enters the oil tank 508 from the hydraulic chamber 507, and the pressure in the oil tank 508 increases, pushing the constant pressure barrel 515 to retract into the telescopic buttress 513. Since the included angle between the vertical wall 1 and the wall toe plate 3 decreases, the telescopic buttress 513 is pushed into the main buttress 512, so that the pressure on the telescopic buttress 513 increases, thereby increasing the pressure on the vertical wall 1 and sharing the pressure borne by the extension rod 502.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A retaining device for water conservancy project construction, comprising a base and a vertical wall, characterized in that: The base includes a wall heel plate and a wall toe plate. Grooves are provided on both sides of the top end of the wall heel plate along the length direction. A hinge seat is provided in the groove. The vertical wall is connected to the wall heel plate through the hinge seat. A hydraulic telescopic component is provided at the end of the vertical wall away from the wall heel plate. A fixed vertebral body is provided at the bottom end of the wall toe plate. A counterweight block is provided in the vertical wall. A pressing valve cooperating with the counterweight block is provided in the wall surface of the vertical wall.

2. The earth retaining device for water conservancy project construction according to claim 1, characterized in that: The wall heel plate includes a wall heel bottom plate, and the hinge seat is fixedly connected to the wall heel bottom plate by bolts. The cross-section of the wall heel bottom plate is a right-angled trapezoid. It also includes a rotating shaft retaining ring block. The rotating shaft retaining ring block is arranged between the opposite surfaces of the hinge seat. The rotating shaft retaining ring block is integrally connected to the wall heel plate. The top of the rotating shaft retaining ring block is a semicircular shape with an opening facing upward. A rotating shaft rod that passes through the vertical wall is also provided between the opposite surfaces of the hinge seat.

3. The earth retaining device for water conservancy project construction according to claim 2 is characterized in that: The vertical wall includes a rotating shaft hole that passes through the vertical wall along the length direction, a mating female opening is opened on one side of the vertical wall in the length direction, and a mating male block is provided at the end away from the mating female opening. The vertical wall is hollow, and a plurality of baffles arranged at intervals are provided in the vertical wall. The cavity between adjacent baffles constitutes a counterweight cavity, a counterweight block is provided in each counterweight cavity, and a handle is provided at the top of each counterweight block.

4. The earth retaining device for water conservancy project construction according to claim 3 is characterized in that: The counterweight block includes a U-shaped block and a square block. Pressing blocks are provided on both sides of the U-shaped counterweight block. It also includes a drain channel, which runs through the counterweight block. The drain channel is arranged above the pressing block. A pressing groove cooperating with the pressing block is opened on the inner wall surface of the vertical wall. Pressing valves connecting the inside and outside of the counterweight cavity are provided on the inner end surface of the vertical wall. The pressing valves are connected to the drain channel.

5. The earth retaining device for water conservancy project construction according to claim 4, characterized in that: The push valve includes an inlet pipe, a retaining mesh cover is provided at the port of the inlet pipe, the retaining mesh cover includes a retaining layer and a permeable layer; it also includes a valve housing, the valve housing is coaxially arranged with the inlet pipe, the valve housing includes an outer shell cylinder, the cross-section of the outer shell cylinder is a square frame with rounded corners, valve cover plates are provided at both ends of the outer shell cylinder, through holes connecting the inside and the outside are provided on the valve cover plates, the water inlet pipe extends from the outside of the valve housing to the inside of the valve housing along the central axis direction, the water inlet pipe and the valve housing are rotatably matched, and a sealing cover matching the water inlet pipe is provided on the outside of the valve cover plate of the valve housing; it also includes a threaded rod, the threaded rod passes through the valve housing and is perpendicular to the central axis of the valve housing, a sealing cover is provided at the connection between the threaded rod and the valve housing, and a pressing plate is provided at the bottom end of the threaded rod; it also includes a water outlet pipe, the water outlet pipe has the same structure as the water inlet pipe and is symmetrically arranged along the valve housing, and the inner wall surfaces of the water inlet pipe and the water outlet pipe are both provided with threads.

6. The earth retaining device for water conservancy project construction according to claim 5, characterized in that: The push valve also includes a sealing sleeve, which is coaxial with the valve housing and has an I-shaped cross-section; it also includes an inner rotating cylinder coaxial with the water inlet pipe, the inner rotating cylinder is sleeved on the outside of the sealing sleeve and the inner rotating cylinder is rotatably matched with the sealing sleeve, there are two inner rotating cylinders and threaded grooves are provided on the outside of the inner rotating cylinder, the inner rotating cylinder is threadedly matched with the water inlet pipe and the water outlet pipe, a plurality of water-through holes connecting the inside and the outside are opened on the inner wall surface of the inner rotating cylinder, and transmission gear rings are provided on the opposite surfaces of the two inner rotating cylinders; it also includes a driving gear, which is sleeved on the outside of the threaded rod and threadedly matched with the threaded rod, and the driving gear is meshed with the transmission gear rings of the two inner rotating cylinders; it also includes a water-sealing sleeve, which is coaxial with the sealing sleeve, the water-sealing sleeve is rotatably matched with the inner rotating sleeve through a sealing cover, and the cavity between the water-sealing sleeve and the valve housing constitutes a water-through cavity; it also includes a threaded rod sleeve arranged at the top end of the valve housing, a piston is provided at the top end of the threaded rod, and a reset spring is provided between the piston and the valve housing.

7. The earth retaining device for water conservancy project construction according to claim 2, characterized in that: The hydraulic telescopic assembly includes a hydraulic sleeve and an extension rod, the extension rod and the hydraulic sleeve are slidably matched, a top extension hinged seat is provided at the top of the extension rod, and also includes a manual mounting seat, a manual pressure rod is hinged at the top of the manual mounting seat, the manual mounting seat extends upward from the hinge for a distance and then chamfers to a horizontal state, extends in the horizontal state for a distance and then chamfers again to a vertical state and extends upward, a pressure rod is provided at the bottom end of the horizontal section of the manual mounting seat, and the pressure rod is slidably matched with the manual mounting seat.

8. The earth retaining device for water conservancy project construction according to claim 7, characterized in that: A hydraulic cavity is provided inside the hydraulic sleeve, an oil tank is provided in the cylinder of the hydraulic sleeve, cavities distributed at different heights are provided inside the manual mounting seat, a lower cavity at a lower position is connected with the hydraulic cavity, an upper cavity in the manual mounting seat is connected with the oil tank, a connecting cavity is provided at the lower end of the pressure rod, the connecting cavity connects the lower cavity of the manual mounting seat with the upper cavity, a first one-way valve is provided in the upper cavity, a second one-way valve is provided in the lower cavity, a pressure relief passage is provided between the upper cavity and the lower cavity, and a pressure relief valve is provided at the pressure relief passage.

9. The earth retaining device for water conservancy project construction according to claim 8, characterized in that: The hydraulic telescopic assembly also includes a buttress assembly, the buttress includes a main buttress and a telescopic buttress, the cross-section of the telescopic buttress is fan-shaped, the main buttress is integrally connected with the hydraulic sleeve, a cavity is opened in the main buttress, the cavity in the main buttress is connected with the cavity in the hydraulic sleeve to form an oil tank, and the hydraulic sleeve and the top extension rod are both arc-shaped.

10. The earth retaining device for water conservancy project construction according to claim 9, characterized in that: A sealing cover is provided at the connection between the outer side of the telescopic buttress and the main buttress. The telescopic buttress is hollow, barrel-shaped and opening downward. A constant pressure barrel is provided inside the telescopic buttress. The constant pressure barrel slides with the telescopic buttress, barrel-shaped and opening upward, and also includes a constant pressure spring. The two ends of the constant pressure spring are respectively connected to the telescopic buttress and the constant pressure barrel.

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