Temporary soil retaining device for building foundation construction

Abstract

The utility model discloses a temporary soil retaining device for building foundation construction. The temporary soil retaining device comprises a soil retaining plate and a telescopic supporting assembly. The number of the soil retaining plates is two, side beams are installed at the upper ends and the lower ends of the opposite faces of the two soil retaining plates correspondingly, supporting pipes are installed at the front ends and the rear ends, away from the side faces of the soil retaining plates, of the side beams correspondingly, and the ends, away from the soil retaining plates, of the eight supporting pipes are slidably connected with two telescopic pin shafts correspondingly; the telescopic supporting assembly comprises eight connecting pipes, inserting holes, nuts and two-way lead screws, the ends, close to the supporting pipes, of the connecting pipes are all provided with evenly-distributed inserting holes, and the sixteen pin shafts are all movably connected with the vertically-adjacent inserting holes in an inserted mode. The telescopic pin shaft is arranged to be connected with the telescopic supporting assembly, connection is convenient, different supporting widths can be formed according to different connection positions, use is easy, and the use range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundation construction, in particular to a temporary earth retaining device used for building foundation construction. Background Art

[0002] Building foundation construction is a key link in construction projects, involving multiple steps such as foundation treatment, foundation pit support, and concrete pouring. During the excavation of the foundation pit, temporary retaining devices are required to prevent earth collapse. Existing temporary retaining devices are generally composed of retaining plates on both sides and a supporting beam in the middle. The supporting beam in the middle tightens and fixes the retaining plates at both ends. The length of the supporting beam cannot generally be adjusted. When supporting foundation pits of different widths, it is necessary to use bolts to assemble support beams of different lengths, and then tilt them between the two retaining plates, and then use external force to move the support beam to the horizontal direction to achieve tightening. The structure is simple and the cost of use is low, but the assembly process using bolts is cumbersome and the length adjustment is inconvenient, which affects the convenience of use. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a temporary retaining device for use in building foundation construction. The device is provided with a retractable pin shaft for connection with the retractable support assembly, which is convenient to connect, and different support widths can be formed by different connection positions. The device is simple to use and has a wide range of uses, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a temporary earth retaining device for use in building foundation construction, comprising an earth retaining plate and a telescopic support assembly;

[0005] Retaining plates: There are two of them. Side beams are installed at the upper and lower ends of the opposite sides of the two retaining plates. Support tubes are installed at the front and rear ends of the side beams away from the sides of the retaining plates. The ends of the eight support tubes away from the retaining plates are slidably connected to two retractable pins.

[0006] Telescopic support assembly: It includes a connecting pipe, a socket, a nut and a bidirectional screw. There are eight connecting pipes. The connecting pipe is provided with evenly distributed sockets at one end close to the support pipe. Sixteen pins are movably connected to the vertically adjacent sockets. The eight connecting pipes are provided with nuts at one end away from the support pipe. A bidirectional screw is threadedly connected between the two corresponding nuts in the horizontal direction. It is provided with a telescopic pin to connect with the telescopic support assembly. The connection is convenient, and different support widths can be formed by different connection positions, and then it is tightened and fixed. It is simple to use and has a wide range of uses, which greatly improves the flexibility and convenience of temporary retaining devices in the construction of building foundations.

[0007] Furthermore, the telescopic support assembly also includes a protective shell, which is respectively arranged at the left and right ends of the bidirectional screw rod. The eight protective shells are all movably connected to the laterally adjacent connecting tubes to provide protection for the bidirectional screw rod.

[0008] Furthermore, it also includes slides, which are slidably connected to the inside of the support tubes. Sixteen pin shafts are provided with guide columns at one end close to the axis of the support tube. The sixteen guide columns are all slidably connected to the vertically adjacent slides, which facilitates the control of the synchronous movement of two guide columns inside the same support tube.

[0009] Furthermore, it also includes a pull rod, a spring and a retaining ring. The pull rod is respectively arranged at one end of the slide close to the retaining plate. The spring and the retaining ring are respectively movably connected to the outside of the pull rod. The inner arc walls of the eight support tubes are fixedly connected to the internal retaining ring. The spring is located between the retaining ring and the slide inside the same support tube to facilitate the positioning of the support tube.

[0010] Furthermore, it also includes handles, which are rotatably connected to the middle of the support tube. The eight pull rods are each provided with a connecting shaft at one end away from the slide seat. The eight connecting shafts are all slidably connected to the laterally adjacent handles to facilitate the control of the movement of the support tube.

[0011] Furthermore, the side of the retaining plate close to the side beam is provided with evenly distributed rectangular holes, and the sides of the two side beams close to the retaining plate are provided with evenly distributed connecting seats, and multiple connecting seats are movably connected with the laterally adjacent rectangular holes to facilitate the positioning of the side beams.

[0012] Furthermore, the side beam is provided with positioning shafts at both ends of the front and rear sides away from the retaining wall, and the eight support tubes are movably connected to the laterally adjacent positioning shafts. The eight support tubes are provided with symmetrically distributed positioning plates at one end close to the side beam to provide positioning for the support tubes.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the temporary earth retaining device used for building foundation construction has the following advantages:

[0014] It is equipped with a retractable pin to connect with the retractable support assembly, which is easy to connect. Different connection positions can form different support widths, and then it is tightened and fixed. It is simple to use and has a wide range of uses, which greatly improves the flexibility and convenience of using temporary retaining devices in building foundation construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is an enlarged structural diagram of point A of the utility model;

[0017] Figure 3This is an enlarged structural diagram of point B of the utility model;

[0018] Figure 4 This is an enlarged structural diagram of point C of the utility model;

[0019] Figure 5 This is an enlarged structural diagram of point D of the present invention.

[0020] In the figure: 1 retaining plate, 2 side beam, 3 support tube, 4 telescopic support assembly, 41 connecting tube, 42 socket, 43 nut, 44 bidirectional screw rod, 45 protective shell, 5 pin shaft, 6 slide seat, 7 guide column, 8 pull rod, 9 spring, 10 retaining ring, 11 handle, 12 connecting shaft, 13 rectangular hole, 14 connecting seat, 15 positioning shaft, 16 positioning plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5 , this embodiment provides a technical solution: a temporary earth retaining device for building foundation construction, comprising an earth retaining plate 1 and a telescopic support assembly 4;

[0023] Retaining board 1: There are two of them. Two retaining boards 1 are placed on the left and right sides of the tunnel of the building foundation. The retaining boards 1 block the soil on the sides to prevent soil collapse. Side beams 2 are installed on the upper and lower ends of the opposite sides of the two retaining boards 1. The side beams 2 are installed on the sides of the retaining boards 1. Support pipes 3 are installed on the front and rear ends of the side beams 2 away from the sides of the retaining boards 1. The eight support pipes 3 are slidably connected to two retractable pins 5 at one end away from the retaining boards 1. Evenly distributed rectangular holes 13 are opened on the side of the retaining board 1 close to the side beams 2. Evenly distributed connecting seats 14 are provided on the sides of the two side beams 2 close to the retaining board 1. The connecting seats 14 are all movably connected with the laterally adjacent rectangular holes 13. When connecting, the connecting seats 14 are passed through the rectangular holes 13 and then moved down to realize the connection and position the side beams 2. There are at least two connecting seats 14 on a single side beam 2. The side beam 2 away from the earth retaining plate 1 is provided with positioning shafts 15 at both ends. The eight support tubes 3 are all movably connected with the laterally adjacent positioning shafts 15. The ends of the eight support tubes 3 close to the side beams 2 are provided with symmetrically distributed positioning plates 16. The support tubes 3 are movably connected with the positioning shafts 15. The positioning shafts 15 position the support tubes 3. The positioning plates 16 move to the inside of the side beam 2 to limit the rotation of the support tubes 3.

[0024] The telescopic support assembly 4 includes a connecting tube 41, a socket 42, a nut 43 and a bidirectional screw rod 44. There are eight connecting tubes 41. The connecting tube 41 is provided with evenly distributed sockets 42 at one end close to the supporting tube 3. The sixteen pins 5 are movably connected to the vertically adjacent sockets 42. The insertion depth of the supporting tube 3 is controlled according to the distance between the two retaining plates 1. Then, the appropriate socket 42 is selected to correspond to the pin 5. The pin 5 is extended and movably connected to the socket 42 to realize the connection between the supporting tube 3 and the connecting tube 41. The eight connecting tubes 41 are provided with a nut 43 at one end away from the supporting tube 3. A bidirectional screw rod 44 is threadedly connected between the two corresponding nuts 43 in the horizontal direction. The two supporting tubes 3 are connected to the connecting tubes 41 at both ends of the same bidirectional screw rod 44. The telescopic support assembly 4 also includes a protective shell 45. The protective shells 45 are respectively arranged at the left and right ends of the bidirectional screw rod 44. The eight protective shells 45 are movably sleeved on the connecting tubes 41 adjacent to the horizontal direction. The protective shell 45 provides protection for the bidirectional screw rod 44.

[0025] Among them: it also includes a slide 6, the slide 6 is slidably connected to the inside of the support tube 3, and the sixteen pins 5 are provided with a guide column 7 at one end close to the axis of the support tube 3. The sixteen guide columns 7 are all slidably connected to the vertically adjacent slide 6. It also includes a pull rod 8, a spring 9 and a retaining ring 10. The pull rod 8 is respectively arranged at one end of the slide 6 close to the retaining plate 1, and the spring 9 and the retaining ring 10 are movably sleeved on the outside of the pull rod 8. The inner arc walls of the eight support tubes 3 are fixedly connected to the internal retaining ring 10. The spring 9 is located between the retaining ring 10 and the slide 6 inside the same support tube 3. The pull rod 8 drives the slide 6 to move synchronously to compress the spring 9. The inclined sliding hole on the pull rod 8 slides relative to the guide column 7. The two inclined slides of the same slide 6 The holes are symmetrically arranged, and the two inclined sliding holes on the same slide 6 are inclined from the outside to the center in the direction away from the pull rod 8, and then the slide 6 will drive the pin shaft 5 to retract to the inside of the support tube 3 through the guide column 7. It also includes a handle 11, and the handle 11 is rotated and connected to the middle part of the support tube 3. The eight pull rods 8 are each provided with a connecting shaft 12 at one end away from the slide 6, and a guide ring is provided in the middle of the support tube 3 for sliding connection with the pull rod 8. The eight connecting shafts 12 are all slidably connected to the laterally adjacent handles 11. Pull the handle 11 in the direction away from the connecting tube 41, and the handle 11 rotates the long slide groove in the middle of itself to slide relative to the connecting shaft 12, and drives the pull rod 8 to move in the direction away from the connecting tube 41 through the connecting shaft 12.

[0026] The working principle of a temporary earth retaining device for building foundation construction provided by the present invention is as follows: when in use, two earth retaining plates 1 are placed on the left and right sides of the tunnel of the building foundation, and then the side beams 2 are installed on the sides of the earth retaining plates 1. When connecting, the connecting seat 14 is passed through the rectangular hole 13 and then moved down to realize the clamping and positioning of the side beams 2. Then, the two supporting tubes 3 are connected with the connecting tubes 41 at both ends of the same two-way screw rod 44, thereby forming a telescopic beam as a whole. When connecting, the handle 11 is pulled away from the connecting tube 41, and the handle 11 rotates the long slide groove in the middle of itself and The connecting shaft 12 slides relatively, and drives the pull rod 8 to move in the direction away from the connecting pipe 41 through the connecting shaft 12. The pull rod 8 drives the slide 6 to move the compression spring 9 synchronously. The inclined sliding hole on the pull rod 8 slides relatively with the guide column 7. The two inclined sliding holes on the same slide 6 are symmetrically arranged. The two inclined sliding holes on the same slide 6 are tilted from the outside to the center in the direction away from the pull rod 8. Then the slide 6 drives the pin 5 to retract into the inside of the support tube 3 through the guide column 7, and then the connecting tube 41 is plugged into the support tube 3. According to the distance between the two retaining plates 1 Control the insertion depth of the support tube 3, then select the appropriate socket 42 to correspond to the pin 5, then release the handle 11, and the spring 9 drives the slide 6, the guide column 7 and the pin 5 to reset under the drive of the retaining ring 10, and the pin 5 extends out and movably plugs into the socket 42 to realize the connection between the support tube 3 and the connecting tube 41. After the two connecting tubes 41 are connected, the telescopic beam formed by the support tube 3, the connecting tube 41, the nut 43 and the bidirectional screw rod 44 are installed as a whole between the two side beams 2. When installing, the support tube 3 is aligned with the positioning shaft 15, and then the bidirectional screw rod 44 is rotated. The bidirectional screw rod The threads at both ends of 44 are in opposite directions, and the nut 43 drives the connecting tube 41 to move in directions away from each other. The connecting tube 41 drives the support tube 3 to move closer to the side beam 2 through the pin shaft 5, and then the support tube 3 is movably connected with the positioning shaft 15, and the positioning plate 16 moves to the inside of the side beam 2. Then, the two-way screw rod 44 is tightened through the force tube, and the extended support tube 3 tightens the retaining plates 1 on both sides through the side beam 2. The retaining plates 1 block the soil on the side to prevent soil collapse. After use, loosen the two-way screw rod 44 to control the contraction of the support tube 3, and then carry out the dismantling work.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A temporary earth retaining device for building foundation construction, characterized in that: It comprises a retaining plate (1) and a telescopic support assembly (4); Earth retaining plates (1): There are two earth retaining plates (1), with side beams (2) installed at both upper and lower ends of the opposing surfaces of the two earth retaining plates (1), and support tubes (3) installed at both front and rear ends of the side beams (2) away from the earth retaining plates (1), and two retractable pins (5) are slidably connected at one end of the eight support tubes (3) away from the earth retaining plates (1); The telescopic support assembly (4) comprises a connecting tube (41), a socket (42), a nut (43) and a bidirectional screw rod (44). There are eight connecting tubes (41). The connecting tubes (41) are provided with evenly distributed sockets (42) at one end close to the support tube (3). The sixteen pins (5) are movably connected to the vertically adjacent sockets (42). The eight connecting tubes (41) are provided with a nut (43) at one end away from the support tube (3). A bidirectional screw rod (44) is threadedly connected between two corresponding nuts (43) in the transverse direction.

2. A temporary earth retaining device for building foundation construction according to claim 1, characterized in that: The telescopic support assembly (4) further comprises a protective shell (45), which is respectively arranged at the left and right ends of the bidirectional screw rod (44), and the eight protective shells (45) are all movably sleeved on the laterally adjacent connecting pipes (41).

3. A temporary earth retaining device for building foundation construction according to claim 1, characterized in that: The invention also includes a slide seat (6), wherein the slide seats (6) are respectively slidably connected to the inside of the support tube (3), and a guide column (7) is provided at one end of the sixteen pin shafts (5) close to the axis of the support tube (3), and the sixteen guide columns (7) are all slidably connected to the vertically adjacent slide seats (6).

4. A temporary earth retaining device for building foundation construction according to claim 3, characterized in that: It also includes a pull rod (8), a spring (9) and a retaining ring (10), wherein the pull rod (8) is respectively arranged at one end of the slide seat (6) close to the earth retaining plate (1), the spring (9) and the retaining ring (10) are respectively movably sleeved on the outside of the pull rod (8), the inner arc walls of the eight support tubes (3) are fixedly connected to the internal retaining ring (10), and the spring (9) is located between the retaining ring (10) and the slide seat (6) inside the same support tube (3).

5. A temporary earth retaining device for building foundation construction according to claim 4, characterized in that: It also includes handles (11), which are rotatably connected to the middle of the support tube (3). The eight pull rods (8) are each provided with a connecting shaft (12) at one end away from the slide seat (6), and the eight connecting shafts (12) are all slidably connected to the laterally adjacent handles (11).

6. A temporary earth retaining device for building foundation construction according to claim 1, characterized in that: The retaining plate (1) is provided with evenly distributed rectangular holes (13) on the side surface close to the side beam (2), and evenly distributed connecting seats (14) are provided on the side surfaces of the two side beams (2) close to the retaining plate (1), and the multiple connecting seats (14) are all movably engaged with the laterally adjacent rectangular holes (13).

7. A temporary earth retaining device for building foundation construction according to claim 1, characterized in that: The side beam (2) is provided with positioning shafts (15) at both ends of the front and rear sides away from the retaining plate (1); the eight support tubes (3) are movably connected to the laterally adjacent positioning shafts (15); and the eight support tubes (3) are provided with symmetrically distributed positioning plates (16) at one end close to the side beam (2).

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