Reversed filtering device for drainage of retaining wall

Abstract

The utility model relates to the technical field of retaining walls, in particular to an inverted filter device for drainage of a retaining wall, which comprises an inverted filter box provided with a wing plate, and further comprises a primary filter bin inserted on the inverted filter box and used for primarily filtering water flow; the buffer plate is movably arranged on the primary filtering bin and is used for reducing the impact of water flow; the guide channel is arranged on the primary filtering bin and is used for guiding the water flow; through the arrangement of the inverted filter box, the primary filter bin and the buffer plate, when water flow impacts on the inverted filter box, the water flow firstly passes through the primary filter bin, the water flow impacts on the buffer plate, part of impact force of the water flow is counteracted by the buffer plate, and the buffer plate can also play a role in primary filtration to block some large silt and stones, so that the water flow is prevented from entering the primary filter bin. And the service life of the inverted filter bag can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of retaining walls, in particular to a reverse filtering device for drainage of retaining walls. Background Art

[0002] Drainage holes are set in the retaining wall to remove the water behind the wall, because the stability of the soil is closely related to the water content of the soil. Once the water content of the soil is too high, it will affect the internal bonding strength of the soil and reduce the anti-slip ability of the retaining wall. Therefore, it is necessary to remove the water behind the wall as much as possible and reduce the soil water content to ensure that the soil pressure does not increase and damage the wall. In order to ensure the smooth discharge of water behind the wall, a filter layer needs to be set at the water inlet of the drainage hole.

[0003] At present, there are two commonly used forms of filtration behind retaining walls: filter layer and filter bag. When the retaining wall is high, a filter bag is set at the water inlet of the drainage hole along the vertical direction of the wall back. The filter bag is composed of crushed stone and coarse sand wrapped in geotextile. The volume of the filter bag is not large. Since the backfill material on the back of the retaining wall is directly filled after the geotextile is laid, the geotextile on the outer layer of the filter bag is easily deformed by the impact of water flow during long-term use, especially when facing rapids, resulting in poor filtration effect. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings and provide a reverse filtering device for retaining wall drainage.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A filter device for retaining wall drainage, comprising a filter box, a wing plate is arranged on the filter box, and further comprising:

[0007] The primary filter chamber is inserted into the anti-filter box and is used for preliminary filtration of the water flow;

[0008] The buffer plate is movably arranged on the primary filter chamber to reduce the impact of water flow;

[0009] The guide channel is arranged on the primary filter bin and is used to guide the water flow.

[0010] Furthermore, a buffer assembly is provided on the primary filter bin, the buffer plate is slidably connected to the primary filter bin through the buffer assembly, telescopic assemblies are provided on both sides of the buffer assembly, a limiting slide bar slidably connected to the anti-filter box is provided on one side of the primary filter bin, and a limiting assembly fixedly connected to the anti-filter box is provided in the limiting slide bar.

[0011] Furthermore, the buffer assembly includes a fixed plate fixed in the primary filter bin, a fixed block is arranged on the fixed plate, guide rods are arranged at both ends of the fixed block, a buffer rod is slidably arranged on the guide rod, and the end of the buffer rod away from the guide rod is connected to the buffer plate.

[0012] Furthermore, the buffer rod includes a movable slider sleeved on the guide rod, a movable rod is rotatably provided on the movable slider, one end of the movable rod away from the movable slider is rotatably connected to the buffer plate, and a return spring sleeved on the guide rod is provided on one side of the movable slider.

[0013] Furthermore, the telescopic assembly includes a fixed sleeve fixed on the buffer assembly, a telescopic rod is slidably arranged in the fixed sleeve, and the telescopic rod is connected to the buffer plate.

[0014] Furthermore, a movable groove is provided on the limit slide bar, the limit assembly includes a limit spring located in the movable groove, a limit rod is provided at one end of the limit spring, and a socket matched with the limit rod is provided on the filter box.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model is arranged on the reverse filter box, the primary filter chamber and the buffer plate. When the water flow impacts the reverse filter box, it will first pass through the primary filter chamber, and then impact the buffer plate. The buffer plate is used to offset a part of the impact force of the water flow. The buffer plate can also play the role of primary filtering, blocking some larger pieces of mud, sand and stones, and can extend the service life of the reverse filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the buffer bin of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the buffer component of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the limit assembly of the utility model.

[0022] In the figure: 1. anti-filter box; 2. wing plate; 3. primary filter chamber; 31. buffer assembly; 311. fixed plate; 312. fixed block; 313. guide rod; 314. movable slider; 315. movable rod; 316. reset spring; 32. telescopic assembly; 321. fixed sleeve; 322. telescopic rod; 33. limit slide; 331. movable groove; 34. limit assembly; 341. limit plug rod; 342. limit spring; 4. buffer plate; 5. guide channel. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] Reference Figure 1-Figure 4 As shown, a filter device for retaining wall drainage includes a filter box 1, a filter bag is placed in the filter box 1, a wing plate 2 is arranged on the filter box 1, and the wing plate 2 is fixed to the retaining wall by expansion bolts, and also includes:

[0026] The primary filter chamber 3 is inserted on the reverse filter box 1 and is used for preliminary filtering of the water flow;

[0027] A buffer plate 4 is movably arranged on the primary filter chamber 3 to reduce the impact of water flow;

[0028] The primary filter chamber 3 can also be provided in multiple pieces, which are respectively located at the front end and the left and right sides of the filter box 1, and a movable buffer plate 4 is provided in each of the primary filter chambers 3. The water flow will mainly impact from the front, and it will also enter the filter box 1 from both sides, so that it can play a buffering role when facing the impact from all sides;

[0029] The guide channel 5 is arranged on the primary filter chamber 3 and is used for guiding the water flow.

[0030] In one embodiment, a buffer assembly 31 is provided on the primary filter chamber 3. The buffer assembly 31 itself has a certain elasticity. The buffer plate 4 is slidably connected to the primary filter chamber 3 through the buffer assembly 31. When the water flow impacts the buffer plate 4, if the impact force is too large, the water flow will push the buffer plate 4 to move backwards and compress the buffer assembly 31. The elasticity of the buffer assembly 31 is used to reduce the impact of the water flow and play a role in unloading. Telescopic assemblies 32 are provided on both sides of the buffer assembly 31. In fact, the telescopic assembly 32 is located at the buffer assembly The telescopic component 32 has a certain sealing effect between the component 31 and the inner side of the primary filter bin 3, and can be extended and contracted following the movement of the buffer plate 4 to prevent water from entering therein. A limiting slide bar 33 slidably connected to the anti-filter box 1 is provided on one side of the primary filter bin 3, and a limiting component 34 fixedly connected to the anti-filter box 1 is provided in the limiting slide bar 33. The primary filter bin 3 itself is detachably installed, and is inserted into the anti-filter box 1 through the limiting slide bar 33, and then the primary filter bin 3 can be fixed by the limiting component 34.

[0031] In one embodiment, the buffer assembly 31 includes a fixed plate 311 fixed in the primary filter bin 3, a fixed block 312 is provided on the fixed plate 311, guide rods 313 are provided at both ends of the fixed block 312, a buffer rod is slidably provided on the guide rod 313, and one end of the buffer rod away from the guide rod 313 is connected to the buffer plate 4;

[0032] When the water flow hits the buffer plate 4, the buffer plate 4 will be pressed and slide backward, thereby squeezing the buffer rod. Since the buffer rod itself has a certain elasticity, the elastic force can be used to offset part of the impact, and after the water flow slows down, the buffer plate 4 will return to its original position under the action of the elastic force.

[0033] In one embodiment, the buffer rod includes a movable slider 314 sleeved on the guide rod 313, a movable rod 315 is rotatably provided on the movable slider 314, one end of the movable rod 315 away from the movable slider 314 is rotatably connected to the buffer plate 4, and a return spring 316 sleeved on the guide rod 313 is provided on one side of the movable slider 314;

[0034] When the buffer plate 4 moves backward, it will squeeze the movable rods 315 on both sides. The movable rods 315 push the movable slider 314 to slide to both sides and squeeze the reset spring 316. The elastic force of the reset spring 316 is used to offset part of the impact, which can extend the service life of the filter box 1.

[0035] In one embodiment, the telescopic assembly 32 includes a fixed sleeve 321 fixed on the buffer assembly 31, a telescopic rod 322 is slidably disposed in the fixed sleeve 321, and the telescopic rod 322 is connected to the buffer plate 4;

[0036] First, the telescopic assembly 32 itself is a sealing member, and the buffer plate 4 can slide forward and backward. When the buffer plate 4 slides backward, it will drive the telescopic rod 322 to shrink in the fixed sleeve 321.

[0037] In one embodiment, a movable groove 331 is provided on the limit slide 33, and the limit assembly 34 includes a limit spring 342 located in the movable groove 331, and a limit plug rod 341 is provided at one end of the limit spring 342, and a plug hole matching with the limit plug rod 341 is provided on the filter box 1;

[0038] The primary filter bin 3 is installable and detachable. After being inserted into the anti-filter box 1 along the limit slide 33, the upper and lower sets of limit rods 341 are first retracted into the limit slide 33. When the limit slide 33 is fully inserted, the limit rod 341 will be inserted into the insertion hole under the elastic force of the limit spring 342, thereby fixing the primary filter bin 3. Of course, in order to make it more secure, threaded holes can be opened on the two extended limit rods 341, and the two threaded holes are located on the same straight line. Then, a vertical screw is used to tighten it to complete the locking.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A filter device for retaining wall drainage, comprising a filter box (1), a wing plate (2) being arranged on the filter box (1), characterized in that: Also includes: The primary filter chamber (3) is inserted into the reverse filter box (1) and is used for preliminary filtering of the water flow; A buffer plate (4) is movably arranged on the primary filter chamber (3) and is used to reduce the impact of water flow; The guide channel (5) is arranged on the primary filter bin (3) and is used to guide the water flow.

2. The anti-filtration device for retaining wall drainage according to claim 1, characterized in that: The primary filter bin (3) is provided with a buffer assembly (31), the buffer plate (4) is slidably connected to the primary filter bin (3) via the buffer assembly (31), telescopic assemblies (32) are provided on both sides of the buffer assembly (31), a limiting slide bar (33) slidably connected to the reverse filter box (1) is provided on one side of the primary filter bin (3), and a limiting assembly (34) fixedly connected to the reverse filter box (1) is provided inside the limiting slide bar (33).

3. The anti-filtration device for retaining wall drainage according to claim 2, characterized in that: The buffer assembly (31) comprises a fixed plate (311) fixed in the primary filter bin (3), a fixed block (312) being arranged on the fixed plate (311), guide rods (313) being arranged at both ends of the fixed block (312), a buffer rod being slidably arranged on the guide rod (313), and an end of the buffer rod away from the guide rod (313) being connected to the buffer plate (4).

4. The anti-filtration device for retaining wall drainage according to claim 3 is characterized in that: The buffer rod comprises a movable slider (314) sleeved on the guide rod (313), a movable rod (315) is rotatably arranged on the movable slider (314), one end of the movable rod (315) away from the movable slider (314) is rotatably connected to the buffer plate (4), and a return spring (316) sleeved on the guide rod (313) is arranged on one side of the movable slider (314).

5. The anti-filtration device for retaining wall drainage according to claim 2, characterized in that: The telescopic assembly (32) comprises a fixed sleeve (321) fixed on the buffer assembly (31), a telescopic rod (322) is slidably arranged in the fixed sleeve (321), and the telescopic rod (322) is connected to the buffer plate (4).

6. The anti-filtration device for retaining wall drainage according to claim 2, characterized in that: The limit slide bar (33) is provided with a movable groove (331), the limit assembly (34) comprises a limit spring (342) located in the movable groove (331), one end of the limit spring (342) is provided with a limit plug rod (341), and the filter box (1) is provided with a plug hole that matches the limit plug rod (341).

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