Foundation pit water filter net support device and foundation pit water filter net support system

Abstract

The present invention provides a foundation pit water filter net support device and a foundation pit water filter net support system. The foundation pit water filter net support device includes: a support body, two guide rods and at least two nail bodies; the support body is used to contact with any side wall of the foundation pit to support the water filter net attached to the side wall of the foundation pit; each nail body is arranged on the first side of the support body, and each nail body is used to be nailed into the side wall of the foundation pit; two guide rods are respectively arranged at the two ends of the support body in a one-to-one correspondence and adjustable position, and each guide rod is used to abut against the side wall adjacent to the side wall of the foundation pit. In the present invention, the support body is in close contact with the side wall of the foundation pit to support the water filter net, and each guide rod abuts against the side wall adjacent to the side wall of the foundation pit, then the two guide rods can support and fix the support body with the help of the extrusion force of the two adjacent side walls of the foundation pit, and then support and fix the water filter net, avoid the water filter net from falling off, and avoid the collapse of the side wall of the foundation pit.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit support, and in particular to a foundation pit water filter net support device and a foundation pit water filter net support system. Background Art

[0002] The foundation pit is a soil pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. In the prior art, soil nail walls are generally used to support the foundation pit. In the process of digging the foundation pit, water and sand gushing are often encountered. In this case, if the soil nail wall is continued to be used for support, it is necessary to dig down a certain depth. However, in the actual digging process, the side wall of the foundation pit will collapse. In severe cases, the entire side wall of the foundation pit will collapse, affecting ground buildings, etc. Therefore, there is a water filtration device on the market to block the gushing of sand and water.

[0003] Patent announcement number CN208441108U discloses a sand retaining and water filtering device for foundation pit support, which includes a plurality of support nets arranged around the foundation pit wall, one side of the support net is in contact with the foundation pit side wall, and the lower end of the support net extends into the bottom of the foundation pit or the foundation pit side wall. The support net is arranged in four layers, starting from the side close to the foundation pit wall, which are geotextile, wire mesh, steel mesh and wire mesh, respectively. It can play a good role in filtering water, but the support net is fixed by inserting T-shaped steel bars into the foundation pit side wall. However, the fixing of the T-shaped steel bars is not firm. Under the weight of the steel mesh, the geotextile and wire mesh are easily dropped, thereby losing the supporting effect and causing the side wall to collapse. Summary of the invention

[0004] In view of this, the present invention proposes a foundation pit water filter net support device, aiming to solve the problem that the foundation pit sand retaining and water filter device in the prior art is not firmly fixed and easy to fall off. The present invention also proposes a foundation pit water filter net support system.

[0005] In one aspect, the present invention proposes a foundation pit water filter net support device, the device comprising: a support body, two guide rods and at least two nail bodies; wherein the support body is used to contact with any side wall of the foundation pit to support the water filter net attached to the side wall of the foundation pit; each nail body is arranged on a first side of the support body, and each nail body is used to be nailed into the side wall of the foundation pit; two guide rods are respectively and one by one correspondingly and positionally adjustable at both ends of the support body, and each guide rod is used to abut against the side wall adjacent to the side wall of the foundation pit.

[0006] Furthermore, the above-mentioned foundation pit water filter net support device also includes: two locking mechanisms; wherein the interior of the support body is hollow and open at both ends, and each guide rod is slidably inserted into the interior of the support body from the corresponding end of the support body; the two locking mechanisms correspond to the two guide rods one by one, and each locking mechanism is used to lock the guide rod when the corresponding guide rod is placed at any position in the support body.

[0007] Furthermore, in the above-mentioned foundation pit water filter net support device, each locking mechanism includes: a stop rod, a spring and a pull block; wherein a guide hole is opened at each end of the second side of the support body opposite to the first side, and each guide rod is opened at the second side of the support body with multiple slots; the stop rod is passed through any one of the guide holes, and the first end of the stop rod is placed in any one of the slots of the corresponding guide rod, and the first end of the stop rod is an inclined surface inclined toward the center of the support body; the second end of the stop rod is placed outside the support body and connected to the pull block; the spring is sleeved on the part of the stop rod placed outside the support body, and the first end of the spring is connected to the second side of the support body, and the second end of the spring is connected to the pull block.

[0008] Furthermore, in the above foundation pit water filter net support device, each groove is evenly distributed along the length direction of the corresponding guide rod.

[0009] Furthermore, in the above foundation pit water filter net support device, each locking mechanism also includes: a guide cylinder; wherein the guide cylinder is connected to the second side of the support body and corresponds to the guide hole, and the stop rod is sequentially passed through the interior of the guide cylinder and the corresponding guide hole.

[0010] Furthermore, in the above foundation pit water filter net support device, the nail bodies are evenly distributed along the length direction of the support body.

[0011] In the present invention, each nail body is nailed into the side wall of the foundation pit so that the support body is in close contact with the side wall of the foundation pit to support the water filter net and ensure that the water filter net is stably attached to the side wall of the foundation pit. In addition, each guide rod is in contact with the side wall adjacent to the side wall of the foundation pit. The two guide rods can use the squeezing force of the two adjacent side walls of the foundation pit to support and fix the support body, thereby supporting and fixing the water filter net to avoid the water filter net from falling off, thereby improving the supporting effect of the water filter net and avoiding the collapse of the side wall of the foundation pit, solving the problem of the sand retaining and water filtering device of the foundation pit in the prior art that it is not firmly fixed and easy to fall off. At the same time, the position of each guide rod and the support body is adjustable, which is convenient for adjusting the position of the guide rod according to the size of the side wall of the foundation pit, and can be suitable for foundation pits of different sizes, and is more flexible to use.

[0012] On the other hand, the present invention also proposes a foundation pit water filter net support system, which includes: at least two foundation pit water filter net support devices of any one of the above-mentioned types; wherein any two adjacent foundation pit water filter net support devices are perpendicular to each other, and the guide rods at corresponding positions in any two adjacent foundation pit water filter net support devices are vertically connected.

[0013] Furthermore, in the above foundation pit water filter net support system, the guide rods at corresponding positions in any two adjacent foundation pit water filter net support devices are integrally formed.

[0014] Furthermore, in the above foundation pit water filter net support system, the connection between the guide rods at corresponding positions in any two adjacent foundation pit water filter net support devices is an arc transition.

[0015] Furthermore, in the above foundation pit water filter net support system, the support bodies in any two opposite foundation pit water filter net support devices are connected by at least one pull rope.

[0016] In the present invention, by vertically connecting the guide rods at corresponding positions in any two adjacent foundation pit water filter net support devices, the support body in each foundation pit water filter net support device not only supports and fixes the water filter net by nailing the nail body thereon into the side wall of the foundation pit, but also the guide rods in each foundation pit water filter net support device are abutted and fixed by the guide rods of the adjacent foundation pit water filter net support devices, so that each guide rod can be abutted and fixed by the adjacent foundation pit side walls, and the foundation pit water filter net support device placed in the middle is supported by squeezing the two adjacent foundation pit side walls, which further plays a role in supporting and fixing the water filter net, improves the supporting effect of the water filter net, and avoids the falling of the water filter net and the collapse of the foundation pit side walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0018] Figure 1 A schematic structural diagram of a foundation pit water filter net support device provided by an embodiment of the present invention;

[0019] Figure 2 A schematic cross-sectional structure diagram of a foundation pit water filter net support device provided by an embodiment of the present invention;

[0020] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 A schematic structural diagram of a foundation pit water filter network support system provided by an embodiment of the present invention;

[0022] Figure 5 A schematic side view of the structure of a foundation pit water filter net support system provided by an embodiment of the present invention;

[0023] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of BB. DETAILED DESCRIPTION

[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Embodiment of foundation pit water filter net support device:

[0026] See also Figures 1 to 3 , the figure shows the preferred structure of the foundation pit water filter net support device in this embodiment. The side wall of the foundation pit is provided with a water filter net, and the foundation pit water filter net support device supports and fixes the water filter net on the side wall of the foundation pit, so that the water filter net is stably attached to the side wall of the foundation pit. As shown in the figure, the foundation pit water filter net support device includes: a support body 1, two guide rods 2 and at least two nail bodies 3. Among them, the support body 1 is used to contact with any side wall of the foundation pit, and the support body 1 supports the water filter net attached to the side wall of the foundation pit, so that the water filter net and the side wall of the foundation pit are relatively fixed. Each nail body 3 is arranged on the first side of the support body 1. Specifically, each nail body 3 is placed on the side where the support body 1 contacts the side wall of the foundation pit, that is, the side of the support body 1 away from the center of the foundation pit. Each nail body 3 is used to be nailed into the side wall of the foundation pit, so that the support body 1 and the side wall of the foundation pit are relatively fixed, and then the water filter net is supported. Preferably, each nail body 3 is evenly arranged along the length direction of the support body 1.

[0027] In specific implementation, the shape of the support body 1 can be cylindrical or rectangular, and this embodiment does not impose any limitation on this. In this embodiment, the cross-sectional shape of the support body 1 is a quadrilateral.

[0028] The two guide rods 2 are respectively arranged at the two ends of the support body 1 in a one-to-one correspondence and in an adjustable position. Specifically, the two guide rods 2 correspond to the two ends of the support body 1 in a one-to-one correspondence, and each guide rod 2 is adjustably connected to the corresponding end of the support body 1. In other words, the two guide rods 2 are respectively arranged at the two ends of the support body 1, and the positions of the two guide rods 2 at the two ends of the support body 1 are adjustable, so that the overall length of the support body 1 and the two guide rods 2 can be changed.

[0029] Each guide rod 2 is used to abut against the side wall adjacent to the foundation pit side wall. Specifically, each guide rod 2 adjusts its position at the corresponding end of the support body 1 according to the length of the foundation pit side wall. When adjusting the position, it is necessary not only to adapt to the length of the foundation pit side wall, but also to enable the guide rod 2 to abut against the side wall adjacent to the foundation pit side wall. The side wall adjacent to the foundation pit side wall refers to the side wall corresponding to the support body 1 as the first side wall, and the two adjacent side walls are the two side walls adjacent to the first side wall in the foundation pit. One of the guide rods 2 contacts and abuts against one of the side walls adjacent to the first side wall, and the other guide rod 2 contacts and abuts against the other side wall adjacent to the first side wall.

[0030] More specifically, the foundation pit is quadrilateral, and has four side walls, which are adjacent and perpendicular to each other. The foundation pit water filter net support device is arranged on any one of the side walls, and each guide rod 2 is in vertical contact with and abuts against the foundation pit side wall adjacent to the side wall, so that the two guide rods 2 can support and fix the support body 1 by means of the squeezing force of the two adjacent foundation pit side walls, and then support and fix the water filter net to prevent the water filter net from falling off.

[0031] When used specifically, if the foundation pit is a quadrilateral, at least two foundation pit water filter net support devices are used together, and each foundation pit water filter net support device corresponds to a side wall of the foundation pit. Each adjacent foundation pit water filter net support device is vertically arranged, and the guide rods 2 at the contact point of any two adjacent foundation pit water filter net support devices are connected. In this way, not only the support body 1 in each foundation pit water filter net support device can support the water filter net, but also each guide rod 2 in each foundation pit water filter net support device supports the adjacent foundation pit water filter net support device, so that each foundation pit water filter net support device can be squeezed by the two adjacent foundation pit side walls, and the lateral squeezing force of the two adjacent foundation pit side walls is used to support and fix the support body 1, and then support and fix the water filter net to prevent the water filter net from falling off.

[0032] During specific implementation, the number of foundation pit water filter net support devices is selected according to the situation of setting the water filter net on the side wall of the foundation pit, that is, the foundation pit water filter net support devices can be two, three or four. Preferably, there are four foundation pit water filter net support devices to better adapt to the four side walls of the frame-type foundation pit.

[0033] It can be seen that in the present embodiment, each nail body 3 is nailed into the side wall of the foundation pit so that the support body 1 is in close contact with the side wall of the foundation pit to support the water filter net and ensure that the water filter net is stably attached to the side wall of the foundation pit, and each guide rod 2 is in contact with the adjacent side wall of the foundation pit. Then, the two guide rods 2 can support and fix the support body 1 with the help of the squeezing force of the two adjacent side walls of the foundation pit, and then support and fix the water filter net to avoid the water filter net from falling off, thereby improving the support effect of the water filter net and avoiding the collapse of the side wall of the foundation pit, solving the problem of the sand retaining and water filtering device of the foundation pit in the prior art that it is not firmly fixed and easy to fall off. At the same time, the position of each guide rod 2 and the support body 1 is adjustable, which is convenient for adjusting the position of the guide rod 2 according to the size of the side wall of the foundation pit, and can be suitable for foundation pits of different sizes, and is more flexible to use.

[0034] See also Figures 1 to 3 In the above embodiment, the foundation pit water filter net support device may further include: two locking mechanisms 4. The interior of the support body 1 is hollow, and both ends of the support body 1 are open. Each guide rod 2 is slidably inserted into the interior of the support body 1 by the corresponding end of the support body 1. Then, each guide rod 2 can slide inside the support body 1, so that the position of each guide rod 2 in the support body 1 can be adjusted, that is, the length of each guide rod 2 outside the support body 1 can be adjusted to adapt to the length of the foundation pit side wall and ensure the abutment of the guide rod 2 with the adjacent side wall.

[0035] The two locking mechanisms 4 correspond one-to-one to the two guide rods 2, and each locking mechanism 4 is used to lock the guide rod 2 when the corresponding guide rod 2 is placed at any position in the support body 1, so that the corresponding guide rod 2 is relatively fixed to the support body 1, thereby locking the corresponding guide rod 2 at a certain position of the support body 1.

[0036] It can be seen that in the present embodiment, the guide rod 2 is locked by the locking mechanism 4, so that the guide rod 2 can be fixed at any position of the support body 1. In this way, the position of each guide rod 2 on the support body 1 can be adjusted according to the length of the foundation pit side wall and the position of the adjacent side wall of the foundation pit side wall, thereby ensuring that each guide rod 2 can abut against the adjacent side wall, and then support the support body 1 with the help of the force of the two adjacent foundation pit side walls themselves, thereby ensuring the supporting effect on the water filter net.

[0037] Continue to see Figures 1 to 3 In the above embodiment, each locking mechanism 4 may include: a stop rod 41, a spring 42 and a pull block 43. A guide hole is provided on the second side of the support body 1 corresponding to each end, that is, two guide holes are provided on the second side of the support body 1, the second side is opposite to the first side, and the second side is the side of the support body 1 facing the center of the foundation pit. Moreover, the two guide holes are respectively placed at the two ends of the support body 1 in a one-to-one correspondence.

[0038] Each guide rod 2 is provided with a plurality of slots 21 at the second side facing the support body 1, and there is a preset spacing between any two adjacent slots 21, and each slot 21 has a preset depth. The preset spacing and preset depth can be determined according to actual conditions, and this embodiment does not impose any restrictions on this. Preferably, each slot 21 is evenly distributed along the length direction of the corresponding guide rod 2.

[0039] The stop rod 41 is inserted into any one of the guide holes. Since the two locking mechanisms 4 correspond to the two ends of the support body 1 one by one, the stop rod 41 in one of the locking mechanisms 4 is inserted into any one of the two guide holes, and correspondingly, the stop rod 41 in the other locking mechanism 4 is inserted into the other guide hole. After the stop rod 41 is inserted into the guide hole, the first end of the stop rod 41 is placed in any one of the corresponding slots 21 of the guide rod 2, the second end of the stop rod 41 is placed outside the support body 1, and the second end of the stop rod 41 is connected to the pull block 43.

[0040] The first end of the stop rod 41 is an inclined surface, which is inclined toward the center of the support body 1, so that when any guide rod 2 slides away from the support body 1, the stop rod 41 can be lifted by the guide rod 2, thereby ensuring the outward sliding of the guide rod 2. However, when the guide rod 2 slides toward the center of the support body 1, the stop rod 41 blocks the guide rod 2 and prevents the guide rod 2 from sliding into the support body 1. This design allows the guide rod 2 to only slide outward along the support body 1, but not inward along the support body 1, that is, the guide rod 2 can only move in one direction.

[0041] The spring 42 is sleeved on the portion of the stop rod 41 that is placed outside the support body 1, and the first end of the spring 42 is connected to the second side of the support body 1, and the second end of the spring 42 is connected to the pull block 43. When the stop rod 41 is lifted up during the outward sliding of the guide rod 2, the spring 42 is in a stretched state, and the elastic restoring force of the spring 42 pushes the stop rod 41 to move toward the adjacent slot 21 of the guide rod 2, so that the stop rod 41 is placed in the other slots 21.

[0042] See also Figures 1 to 3When in use, the water filter net is attached to any vertical side wall of the foundation pit, and the support body 1 contacts the side wall of the foundation pit. At this time, both guide rods 2 are retracted inside the support body 1. Then, the two guide rods 2 are pulled outward. The structures of the two guide rods 2 connected to the two ends of the support body 1 are the same, and the structure of one guide rod 2 connected to one end of the support body 1 is used as an example to introduce. When the guide rod 2 is pulled out of the interior of the support body 1, since the first end of the stop rod 41 is an inclined surface, the guide rod 2 pushes the stop rod 41 when the guide rod 2 slides outward, so that the stop rod 41 is pushed outward, and at this time, the spring 42 is in a stretched state. As the guide rod 2 continues to slide outward, the stop rod 41 is pushed out of the slot, and as the guide rod 2 continues to slide outward, when it slides to another slot opposite to the stop rod 41, the stop rod 41 is pushed to move toward the guide rod 2 under the action of the elastic restoring force of the spring 42, and then the first end of the stop rod 41 is placed in another slot 21. According to the above method, the guide rod 2 is pulled according to the actual situation until the guide rod 2 can abut against the side wall adjacent to the side wall of the foundation pit, and then the guide rod 2 is stopped from being pulled outward, and the stop rod 41 is placed in one of the slots 21. Then, each nail body 3 is nailed into the side wall of the foundation pit.

[0043] During disassembly, when the guide rod 2 slides toward the inside of the support body 1, the first end of the stop rod 41 prevents the guide rod 2 from sliding toward the inside of the support body 1. At this time, it is only necessary to pull the pull block 43 to pull the stop rod 41 out of the slot 21 so that the stop rod 41 is disengaged from the slot 21, and then push the guide rod 2 toward the inside of the support body 1 so that the guide rod 2 slides toward the inside of the support body 1 to complete the disassembly.

[0044] It can be seen that in the present embodiment, each locking mechanism 4 has a simple structure and is easy to implement, and the design of the inclined surface at the first end of the stop rod 41 allows the guide rod 2 to only slide toward the outside of the support body 1, and when the guide rod 2 slides toward the inside of the support body 1, it will be blocked by the stop rod 41, so that the guide rod 2 can only slide in one direction, which is convenient for adjusting the position of the guide rod 2, can better adapt to foundation pits of different sizes, and is more flexible to use.

[0045] See also Figures 1 to 3 In the above embodiment, each locking mechanism 4 may further include: a guide cylinder 45. The guide cylinder 45 is connected to the second side of the support body 1, and the guide cylinder 45 corresponds to the guide hole at the corresponding end of the support body 1. The guide cylinder 45 is hollow inside and open at both ends. The guide cylinder 45 has a preset length, which can be determined according to actual conditions, and this embodiment does not impose any restrictions on this. The stop rod 41 passes through the interior of the guide cylinder 45 and the corresponding guide hole in sequence, and the first end of the stop rod 41 is placed in any one of the slots 21 of the corresponding guide rod 2.

[0046] In a specific implementation, the first end of the spring 42 in each locking mechanism 4 is connected to the corresponding guide cylinder 45 .

[0047] It can be seen that in this embodiment, by providing the guide cylinder 45, the height of the stop rod 41 when it is lifted by the guide rod 2 is extended, thereby improving the stability of the structure.

[0048] To sum up, in this embodiment, each nail body 3 is nailed into the side wall of the foundation pit so that the support body 1 is in close contact with the side wall of the foundation pit to support the water filter net and ensure that the water filter net is stably attached to the side wall of the foundation pit. In addition, each guide rod 2 is in contact with the adjacent side wall of the foundation pit. The two guide rods 2 can use the squeezing force of the two adjacent side walls of the foundation pit to support and fix the support body 1, and then support and fix the water filter net to avoid the water filter net from falling off, thereby improving the support effect of the water filter net and avoiding the collapse of the side wall of the foundation pit. At the same time, the position of each guide rod 2 and the support body 1 is adjustable, which is convenient for adjusting the position of the guide rod 2 according to the size of the side wall of the foundation pit. It can be suitable for foundation pits of different sizes and is more flexible to use.

[0049] Example of foundation pit water filter support system:

[0050] This embodiment also proposes a foundation pit water filter support system. Figures 4 to 6 , the foundation pit water filter net support system includes: at least two of any of the above foundation pit water filter net support devices. The foundation pit water filter net support system is suitable for frame-type foundation pits, that is, the cross-section of the foundation pit is quadrilateral, and the side walls of the foundation pit are arranged vertically adjacent to each other in sequence. Any two adjacent foundation pit water filter net support devices are perpendicular to each other to adapt to the side walls of the frame-type foundation pit. Moreover, the guide rods 2 at corresponding positions in any two adjacent foundation pit water filter net support devices are vertically connected, that is, the guide rods 2 at relative contact positions in any two adjacent foundation pit water filter net support devices are vertically connected, and the two guide rods 2 form an L shape. Among them, the specific implementation process of the foundation pit water filter net support device can be found in the above description, and this embodiment will not be repeated here.

[0051] During specific implementation, there may be two, three, or four foundation pit water filter net support devices, and this embodiment does not impose any limitation on this.

[0052] See also Figures 4 to 6 Preferably, the guide rods 2 at corresponding positions in any two adjacent foundation pit water filter net support devices are integrally formed, which improves the overall stability, is more solid and strong, and is easy to manufacture.

[0053] See also Figures 4 to 6 More preferably, the connection between the corresponding guide rods 2 in any two adjacent foundation pit water filter net support devices is an arc transition, so that the two guide rods 2 have a certain toughness, avoiding breakage and deformation, and extending the service life.

[0054] See also Figures 4 to 6 , the support bodies 1 in any two opposite foundation pit water filter net support devices are connected by at least one pull rope 5. Specifically, the positions of the locking mechanisms 4 in any two opposite foundation pit water filter net support devices correspond to each other, and the positions of the pull blocks 43 in the locking mechanisms 4 at the corresponding positions also correspond to each other, and the two pull blocks 43 at the corresponding positions are connected by the pull rope 5. The pull rope 5 is used to pull the two pull blocks 43 at the corresponding positions in the two opposite foundation pit water filter net support devices, driving the corresponding stop rod 41 to move toward the center of the foundation pit, thereby canceling the blocking effect on the corresponding guide rod 2, so that the corresponding guide rod 2 can slide out from the corresponding end of the support body 1, and the pull ropes 5 between the other two opposite pull blocks 43 are pulled in turn to complete the disassembly of each foundation pit water filter net support device.

[0055] During specific implementation, each pull block 43 in each foundation pit water filter net supporting device is provided with a pull hook 44 to facilitate the connection of the pull rope 5 .

[0056] Combination Figures 1 to 5 The use process of the foundation pit water filter net support system is introduced. The foundation pit is a frame-type foundation pit, and the corresponding foundation pit water filter net support devices are four, and the four foundation pit water filter net support devices correspond to the four side walls of the foundation pit one by one.

[0057] During installation, the water filter net is attached to the vertical side wall of the foundation pit. Since the guide rods 2 at the contact points of two adjacent foundation pit water filter net support devices are connected, two adjacent foundation pit water filter net support devices need to be installed at the same time during installation. First, one foundation pit water filter net support device is installed, and the support body 1 is in contact with the side wall of the foundation pit. At this time, the guide rod 2 is retracted inside the support body 1. Then, the guide rod 2 is pulled out of the support body 1, and the guide rod 2 pushes the stop rod 41, so that the stop rod 41 is pushed up. At this time, the spring 42 is in a stretched state. As the guide rod 2 continues to slide outward, the stop rod 41 is pushed out of the slot 21, and then the elastic restoring force of the spring 42 pushes the stop rod 41 to move toward the guide rod 2, so that the first end of the stop rod 41 is re-placed in another slot 21. According to the above method, the guide rod 2 is continuously pulled out from the inside of the support body 1 until the length of the part of the guide rod 2 placed outside the support body 1 is approximately the same as the length of the side wall of the foundation pit. According to the above method, the adjacent foundation pit water filter net support devices are installed. Since the guide rods 2 in the two adjacent foundation pit water filter net support devices are connected, the positions of the two guide rods 2 are fine-tuned according to the positions of the two foundation pit side walls corresponding to the two adjacent foundation pit water filter net support devices until the two guide rods 2 abut against each other. Then, each nail body 3 is nailed into the side wall of the foundation pit. The installation method of the remaining foundation pit water filter net support devices is the same as the above method.

[0058] During disassembly, it is only necessary to pull the pull ropes 5 at the two pull blocks 43 at the corresponding positions in the two relative foundation pit water filter net support devices to drive the corresponding stop rod 41 to move toward the center of the foundation pit, thereby canceling the blocking effect on the corresponding guide rod 2, so that the corresponding guide rod 2 can slide out from the corresponding end of the support body 1, and pull the pull ropes 5 between the other two relative pull blocks 43 in turn to complete the disassembly of each foundation pit water filter net support device.

[0059] It can be seen that in this embodiment, by vertically connecting the guide rods 2 at corresponding positions in any two adjacent foundation pit water filter net support devices, the support body 1 in each foundation pit water filter net support device not only supports and fixes the water filter net by nailing the nail body 3 thereon into the side wall of the foundation pit, but also the guide rods 2 in each foundation pit water filter net support device are abutted and fixed by the guide rods 2 of the adjacent foundation pit water filter net support device, so that each guide rod 2 can be abutted by the adjacent foundation pit side walls, and the foundation pit water filter net support device placed in the middle is supported by squeezing the two adjacent foundation pit side walls, which further plays a role in supporting and fixing the water filter net, improves the support effect of the water filter net, and avoids the falling of the water filter net and the collapse of the foundation pit side walls.

[0060] It should be noted that the principles of the foundation pit water filter net support device and the foundation pit water filter net support system in the present invention are the same, and the relevant parts can be referenced to each other.

[0061] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A foundation pit water filter net support device, characterized in that: include: A support body (1), two guide rods (2), at least two nail bodies (3) and two locking mechanisms (4); wherein: The support body (1) is used to contact any side wall of the foundation pit to support the water filter net attached to the side wall of the foundation pit; Each of the nail bodies (3) is arranged on the first side of the support body (1), and each of the nail bodies (3) is used to be nailed into the side wall of the foundation pit; The two guide rods (2) are respectively arranged at the two ends of the support body (1) in a one-to-one correspondence and in an adjustable position, and each guide rod (2) is used to abut against the side wall adjacent to the side wall of the foundation pit; The interior of the support body (1) is hollow and has openings at both ends, and each of the guide rods (2) is slidably inserted into the interior of the support body (1) from the corresponding end of the support body (1); The two locking mechanisms (4) correspond to the two guide rods (2) one by one, and each locking mechanism (4) is used to lock the guide rod (2) when the corresponding guide rod (2) is placed at any position in the support body (1); Each of the locking mechanisms (4) comprises: a stop rod (41), a spring (42) and a pull block (43); wherein: A guide hole is provided at each end of a second side of the support body (1) opposite to the first side, and each guide rod (2) is provided with a plurality of slots (21) on the second side of the support body (1); The stop rod (41) is inserted into any one of the guide holes, and the first end of the stop rod (41) is placed in any one of the slots (21) of the corresponding guide rod (2). The first end of the stop rod (41) is an inclined surface inclined toward the center of the support body (1), so that when the guide rod (2) slides away from the support body (1), the stop rod (41) is lifted up by the guide rod (2) so that the guide rod (2) can slide, and when the guide rod (2) slides toward the center of the support body (1), the stop rod (41) blocks the guide rod (2) to prevent the guide rod (2) from sliding. The second end of the stop rod (41) is placed outside the support body (1) and is connected to the pull block (43). The spring (42) is sleeved on the portion of the stop rod (41) located outside the support body (1), and the first end of the spring (42) is connected to the second side of the support body (1), and the second end of the spring (42) is connected to the pull block (43); The slots (21) are evenly distributed along the length direction of the corresponding guide rod (2); Each of the locking mechanisms (4) further comprises: a guide cylinder (45); wherein the guide cylinder (45) is connected to the second side of the support body (1) and corresponds to the guide hole, and the stop rod (41) is sequentially inserted into the interior of the guide cylinder (45) and the corresponding guide hole.

2. The foundation pit water filter net support device according to claim 1, characterized in that: The nail bodies (3) are evenly distributed along the length direction of the support body (1).

3. A foundation pit water filter network support system, characterized in that: At least two foundation pit water filter net support devices as claimed in claim 1 or 2; wherein, Any two adjacent foundation pit water filter net support devices are perpendicular to each other, and the guide rods (2) at corresponding positions in any two adjacent foundation pit water filter net support devices are vertically connected.

4. The foundation pit water filter net support system according to claim 3, characterized in that: The guide rods (2) at corresponding positions in any two adjacent foundation pit water filter net support devices are integrally formed.

5. The foundation pit water filter net support system according to claim 3, characterized in that: The connection between the guide rods (2) at corresponding positions in any two adjacent foundation pit water filter net support devices is an arc transition.

6. The foundation pit water filter net support system according to claim 3, characterized in that: The support bodies (1) in any two opposite foundation pit water filter net support devices are connected via at least one pull rope (5).

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