Stable building engineering foundation pit support

Abstract

The utility model provides a stable constructional engineering foundation pit support which comprises a foundation pit side face baffle, positioning frames are integrally arranged on the upper portion and the lower portion of the side face of the foundation pit side face baffle respectively, a support ejector rod is arranged on the inner side of the foundation pit side face baffle, and rack tooth grooves are formed in the upper portion and the lower portion of the inner side of the support ejector rod respectively. A horizontal movement driver and an end locker are installed on the outer side of the supporting ejector rod. The horizontal movement driver comprises a middle connecting base, and rectangular through holes are formed in the front end and the rear end of the inner side of the middle connecting base respectively. The supporting structure has the beneficial effects that through the arrangement of the middle connecting seat, the rectangular through hole, the driving motor, the driving gear and the guide rollers, the supporting ejector rods at the front end and the rear end are pushed to move towards the left side and the right side respectively, so that the inner sides of the side baffles of the foundation pit are reinforced, and the stability of the supporting structure is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building foundation pit support, and in particular relates to a stable building engineering foundation pit support. Background Art

[0002] The foundation pit support is a support, reinforcement and protection measure for the side walls of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. The open excavation foundation pit is an open-air foundation pit formed by excavating downward from the surface. The existing construction foundation pit support device belongs to the technical field of foundation pit support, and includes a base plate and a construction foundation pit support plate rotatably installed on the top of the base plate, the bottom end of the base plate is equidistantly fixed with anti-skid plates, and both sides of the top surface of the base plate are provided with slide grooves of T-shaped structure, the top of the slide groove is matched and plugged with sliders, the bottom end of the slider is fixed with a sliding rod that is clamped with the bottom of the slide groove, and positioning grooves are provided at both ends of the slider, and the top of the side wall of the construction foundation pit support plate is symmetrically fixed with mounting frames. This type of support device can only support the bottom of the foundation pit guard plate, and the upper part of the foundation pit guard plate is prone to tilt and collapse after being subjected to force, which affects the stability of the support structure. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a stable foundation pit support for construction projects. A horizontally arranged top rod is installed inside the foundation pit guard plate. The gap between the guard plates is reinforced by the meshing between gear racks. The top rod is locked by the mutual meshing between the gear teeth to improve the stability effect.

[0004] The technical solution is as follows: a stable construction engineering foundation pit support, including a foundation pit side baffle, the upper and lower parts of the side of the foundation pit side baffle are respectively integrated with a positioning frame, the inner side of the foundation pit side baffle is provided with a supporting top rod, and the upper and lower parts of the inner side of the supporting top rod are respectively provided with rack tooth grooves, and it is characterized in that the outer side of the supporting top rod is respectively installed with a horizontal moving driver and an end locker.

[0005] Preferably, the horizontal moving driver includes an intermediate connecting seat, and rectangular through holes are respectively opened at the front and rear ends of the inner side of the intermediate connecting seat, a driving motor is fixed at the upper middle position of the front and rear ends of the intermediate connecting seat, the upper and lower parts of the inner side of the intermediate connecting seat are respectively axially connected to driving gears, and the four corners of the inner side of the intermediate connecting seat are respectively axially connected to guide rollers.

[0006] Preferably, the end locker includes an end locking seat, the front and rear ends of the inner lower part of the end locking seat are respectively provided with push rod positioning grooves, and the inner side of the end locking seat is integrated with locking teeth, and the front and rear ends of the lower part of the end locking seat are respectively integrated with bolt hole plates.

[0007] Preferably, the supporting top rods are provided in plurality, and the supporting top rods are arranged in groups of two at the upper and lower inner sides of the side baffle of the foundation pit.

[0008] Preferably, the driving gears and guide rollers are provided in two groups, and each group consists of two driving gears and four guide rollers.

[0009] Preferably, the driving gear and the guide roller are respectively arranged on the inner side of the rectangular through hole, and the output rod of the driving motor is key-connected to the driving gear.

[0010] Preferably, the supporting top rod is inserted into the inner side of the rectangular through hole, and the end of the supporting top rod is inserted into the inner side of the positioning frame.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the arrangement of the positioning frame, the supporting top rod and the rack tooth groove is conducive to fixing the connection between the supporting top rod and the side baffle of the foundation pit, thereby reinforcing the side baffles of the foundation pit on the left and right sides, preventing the reinforced position from shifting after being stressed, and improving the stability of the support structure.

[0013] 2. In the utility model, the arrangement of the intermediate connecting seat, rectangular through hole, driving motor, driving gear and guide roller is conducive to pushing the supporting top rods at the front and rear ends to move to the left and right sides respectively, thereby reinforcing the inner side of the side baffle of the foundation pit and further improving the stability of the supporting structure.

[0014] 3. In the present invention, the arrangement of the end locking seat, the mandrel positioning groove, the locking teeth and the bolt hole plate is conducive to fixing the position of the supporting mandrel and increasing the contact area of ​​the connection position to prevent the fastener from being damaged after being subjected to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the horizontal moving driver of the utility model.

[0017] Figure 3 It is an internal sectional view of the horizontal moving driver of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the end locker of the utility model.

[0019] In the figure:

[0020] 1. Side baffle of foundation pit; 2. Positioning frame; 3. Supporting top rod; 4. Rack tooth groove; 5. Horizontal moving driver; 51. Intermediate connecting seat; 52. Rectangular through hole; 53. Driving motor; 54. Driving gear; 55. Guide roller; 6. End locker; 61. End locking seat; 62. Top rod positioning groove; 63. Locking tooth; 64. Bolt hole plate. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Example:

[0023] As attached Figure 1 As shown, a stable foundation pit support for construction engineering comprises a foundation pit side baffle 1, wherein the upper and lower parts of the side of the foundation pit side baffle 1 are respectively integrated with a positioning frame 2, and a supporting top rod 3 is arranged on the inner side of the foundation pit side baffle 1, and the upper and lower parts of the inner side of the supporting top rod 3 are respectively provided with a rack tooth groove 4, and it is characterized in that a horizontal moving driver 5 and an end locker 6 are respectively installed on the outer side of the supporting top rod 3; the horizontal moving driver 5 comprises an intermediate connecting seat 51, and rectangular through holes 52 are respectively opened at the front and rear ends of the inner side of the intermediate connecting seat 51, and a driving motor 53 is fixed at the upper middle position of the front and rear ends of the intermediate connecting seat 51, and a driving gear 54 is respectively axially connected to the upper and lower parts of the inner side of the intermediate connecting seat 51, and guide rollers 55 are respectively axially connected to the four corners of the inner side of the intermediate connecting seat 51.

[0024] As attached Figure 3 As shown, in the above embodiment, specifically, the end locker 6 includes an end locking seat 61, and the front and rear ends of the inner lower part of the end locking seat 61 are respectively provided with a push rod positioning groove 62, and the inner side of the end locking seat 61 is integrated with a locking tooth 63, and the front and rear ends of the lower part of the end locking seat 61 are respectively integrated with a bolt hole plate 64.

[0025] In the above embodiment, specifically, the guide rollers 55 are respectively attached to the upper and lower parts of the supporting top rod 3, and the driving gear 54 is meshed with the inner side of the rack tooth groove 4.

[0026] In the above embodiment, specifically, the end locking seats 61 are respectively arranged on the left and right sides of the middle connecting seat 51, and two symmetrically arranged end locking seats 61 form a group.

[0027] In the above embodiment, specifically, the upper and lower end locking seats 61 are connected by bolts, and the supporting mandrel 3 is inserted into the inner side of the mandrel positioning groove 62 .

[0028] In the above embodiment, specifically, the locking tooth 63 and the rack tooth groove 4 are plugged together, and the locking tooth 63 is arranged on the inner upper part of the push rod positioning groove 62 .

[0029] How it works

[0030] The working principle of the utility model is as follows: the staff places the side baffle plates 1 of the foundation pit on the left and right sides inside the foundation pit, and then places the supporting top rod 3 and the horizontal moving driver 5 on the inner sides of the side baffle plates 1 of the foundation pit respectively, and then powers the driving motor 53 through an external power supply, and the driving motor 53 drives the driving gear 54 to rotate, and through the mutual engagement between the driving gear 54 and the rack tooth groove 4, the supporting top rods 3 at the front and rear ends are pushed to move to the left and right sides respectively, and the inner sides of the side baffle plates 1 of the foundation pit are tightened and reinforced by the supporting top rods 3, and the ends of the supporting top rods 3 are inserted into the inner sides of the positioning frame 2, and then the end locking seats 61 are sleeved onto the upper and lower parts of the supporting top rods 3, and the supporting top rods 3 are inserted into the inner sides of the top rod positioning grooves 62, and finally, the end locking seats 61 of the upper and lower parts are fixed together by bolts and the bolt hole plates 64, and the end locking seats 61 are respectively tightened on the left and right sides of the middle connecting seat 51, thereby increasing the contact area of ​​the locking position and improving the stabilization effect.

[0031] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A stable foundation pit support for construction engineering, characterized in that: The stable foundation pit support for construction engineering comprises a foundation pit side baffle (1), wherein the upper and lower parts of the side of the foundation pit side baffle (1) are respectively provided with positioning frames (2) in an integrated manner, a supporting top rod (3) is provided on the inner side of the foundation pit side baffle (1), and the upper and lower parts of the inner side of the supporting top rod (3) are respectively provided with rack tooth grooves (4), and the outer side of the supporting top rod (3) is respectively provided with a horizontal moving driver (5) and an end locker (6).

2. The stable foundation pit support for construction engineering as claimed in claim 1 is characterized in that: The horizontal moving driver (5) comprises an intermediate connecting seat (51), wherein rectangular through holes (52) are respectively provided at the front and rear ends of the inner side of the intermediate connecting seat (51), a driving motor (53) is fixed at the upper middle position of the front and rear ends of the intermediate connecting seat (51), a driving gear (54) is respectively axially connected at the upper and lower parts of the inner side of the intermediate connecting seat (51), and guide rollers (55) are respectively axially connected at the four corners of the inner side of the intermediate connecting seat (51).

3. The stable foundation pit support for construction engineering as claimed in claim 1, characterized in that: The end locker (6) comprises an end locking seat (61), the front and rear ends of the inner lower part of the end locking seat (61) are respectively provided with push rod positioning grooves (62), and the inner side of the end locking seat (61) is integrally provided with locking teeth (63), and the front and rear ends of the lower part of the end locking seat (61) are respectively integrally provided with bolt hole plates (64).

4. The stable foundation pit support for construction engineering as claimed in claim 1, characterized in that: A plurality of the supporting top rods (3) are provided, and two supporting top rods (3) are provided in a group at the upper and lower inner sides of the foundation pit side baffle (1).

5. The stable foundation pit support for construction engineering as claimed in claim 2, characterized in that: The driving gear (54) and the guide roller (55) are respectively provided in two groups, and each group is respectively composed of two driving gears (54) and four guide rollers (55).

6. The stable foundation pit support for construction engineering as claimed in claim 2, characterized in that: The driving gear (54) and the guide roller (55) are respectively arranged on the inner side of the rectangular through hole (52), and the output rod of the driving motor (53) is key-connected with the driving gear (54).

7. The stable foundation pit support for construction engineering as claimed in claim 2, characterized in that: The supporting top rod (3) is inserted into the inner side of the rectangular through hole (52), and the end of the supporting top rod (3) is inserted into the inner side of the positioning frame (2).

Images