Geotechnical engineering foundation pit anti-collapse supporting structure

Abstract

The utility model provides a geotechnical engineering foundation pit anti-collapse supporting structure which comprises a support, a telescopic end, two telescopic rods and two protection plates, the lower end of the telescopic end is inserted into an inner cavity of the support, and the two telescopic rods are movably connected with the two sides of the telescopic end respectively. The two protection plates are located on the opposite sides of the two telescopic rods correspondingly and fixedly connected with the telescopic rods, the telescopic ends and the support are adjusted and fixed through clamping mechanisms, placing grooves are formed in inner cavities of the telescopic rods, and positioning mechanisms used for adjusting the telescopic ends and the telescopic rods are arranged in inner cavities of the placing grooves. A transmission mechanism used in cooperation with the positioning mechanism is arranged in an inner cavity of the containing groove. The support can be suitable for supporting foundation pits of different sizes, the telescopic end of the support is stable in positioning, the structure is stable, and the protection effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of geotechnical engineering, and in particular relates to a geotechnical engineering foundation pit anti-collapse supporting structure. Background Art

[0002] The bracket is a connecting bracket used in the foundation pit protection device in geotechnical engineering. It can achieve the effect of preventing the foundation pit from collapsing by cooperating with the protection of the protective plate. In foundation pits of different sizes, the required bracket lengths are also different. Some brackets have fixed sizes and cannot be adjusted, while some existing brackets can be adjusted, but they are all adjusted and positioned by using threaded clamps. During long-term use, the threaded connectors are prone to severe wear, resulting in unstable positioning of the telescopic end of the bracket, thereby affecting the protection effect of the foundation pit. Utility Model Content

[0003] In view of the above-mentioned deficiencies of the prior art, the utility model provides a geotechnical engineering foundation pit anti-collapse support structure, which can be adjusted in height and length to adapt to foundation pits of different sizes, and the telescopic end of the bracket is stably positioned, the structure is stable, and the protection effect is good.

[0004] The technical solution provided by the utility model is: a geotechnical engineering foundation pit anti-collapse support structure, including a bracket, a telescopic end, two telescopic rods and two protective plates, the lower end of the telescopic end is inserted into the inner cavity of the bracket, the two telescopic rods are movably connected to the two sides of the telescopic end respectively, the two protective plates are respectively located on the opposite sides of the two telescopic rods and are fixedly connected to the telescopic rods, the telescopic end and the bracket are adjusted and fixed by a clamping mechanism, the inner cavity of the telescopic rod is provided with a placement groove, the inner cavity of the placement groove is provided with a positioning mechanism for adjusting the telescopic end and the telescopic rod, and the inner cavity of the placement groove is provided with a transmission mechanism used in conjunction with the positioning mechanism.

[0005] Furthermore, the clamping mechanism includes two slides fixed on the sides of the bracket and a clamping rod movably connected to the two slides, the surface of the clamping rod is sleeved with a first tension spring, the other end of the first tension spring is fixedly connected to the bracket, a clamping groove is opened on the telescopic end, one end of the clamping rod passes through the bracket and extends to the inner cavity of the clamping groove, and the number of the clamping grooves is multiple and evenly distributed vertically at the telescopic end.

[0006] Furthermore, the positioning mechanism includes two positioning rods, the tops of the two positioning rods on opposite sides are fixedly connected with oblique extrusion rods, the bottoms of the two positioning rods on opposite sides are connected with second tension springs, and the middle parts of the two positioning rods on opposite sides are provided with positioning blocks.

[0007] Furthermore, the transmission mechanism includes a transmission rod, the bottom of the transmission rod is fixedly connected to a connecting rod, the left and right sides of the connecting rod are fixedly connected to guide rods, and the side of the guide rod close to the extrusion rod is in contact with the surface of the extrusion rod.

[0008] Furthermore, the inner cavity of the guide rod is movably connected to a vertical rod, and the vertical rod is fixedly connected to the inner wall of the placement groove.

[0009] Furthermore, a plug-in block is fixedly connected to the bottom of the inner cavity of the placement slot, plug-in rods are movably connected to the left and right sides of the inner cavity of the plug-in block, the opposite sides of the two plug-in rods are fixedly connected to the positioning rods, and the second tension spring is fixedly connected to the plug-in block on one side close to the plug-in block.

[0010] Furthermore, positioning grooves are provided on both sides of the telescopic end. The number of the positioning grooves is several and evenly distributed on the left and right sides of the telescopic end. Two positioning blocks are respectively connected to the positioning grooves on the left and right sides.

[0011] The utility model is provided with a bracket, a telescopic end, a telescopic rod, a protective plate, a placement groove, a clamping mechanism, a positioning mechanism and a transmission mechanism. The telescopic end is released from a fixed state by pulling the clamping rod, and then the telescopic end is pulled to adjust the height. After the adjustment is completed, the clamping rod is released. During the resetting process, the clamping rod can stably position the telescopic end through the bracket, thereby completing the convenient adjustment and stable positioning of the height of the telescopic end. After the positioning mechanism is driven to move to a suitable position through the transmission mechanism, the telescopic rod is pulled to adjust the length and the protective plates on both sides are inserted into the inner cavity of the foundation pit. After the adjustment is completed, the transmission mechanism is released. During the resetting process, the positioning mechanism can fix the telescopic rod through the mutual cooperation of the telescopic rod and the telescopic end, thereby completing the stable support of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model;

[0013] Figure 2 The embodiment of the utility model provides a three-dimensional cross-sectional view;

[0014] Figure 3 It is a schematic diagram of adjusting the telescopic end and the telescopic rod provided by the embodiment of the utility model;

[0015] Figure 4 It is a schematic diagram of the connection of the internal structure of the placement slot provided by the embodiment of the utility model;

[0016] Figure 5 The utility model embodiment provides Figure 2 A partial enlarged view of the middle A;

[0017] Figure 6The utility model embodiment provides Figure 3 A partial enlarged view of point B in the middle.

[0018] In the figure: 1, bracket; 2, telescopic end; 3, telescopic rod; 4, protective plate; 5, placement slot; 6, clamping mechanism; 7, positioning mechanism; 8, transmission mechanism; 601, clamping rod; 602, first tension spring; 603, slide plate; 604, clamping slot; 701, positioning rod; 702, extrusion rod; 703, second tension spring; 704, positioning block; 801, transmission rod; 802, connecting rod; 803, guide rod; 9, vertical rod; 10, plug-in block; 11, plug-in rod; 12, positioning slot. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and should not be understood as limiting the present invention. In order to better illustrate the specific implementation methods of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods of the present invention, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "front", "rear", "upper", "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1-6A geotechnical engineering foundation pit anti-collapse support structure shown in the figure includes a bracket 1, a telescopic end 2, two telescopic rods 3 and two protective plates 4, the lower end of the telescopic end 2 is inserted into the inner cavity of the bracket 1, the two telescopic rods 3 are movably connected to the two sides of the telescopic end 2, the two protective plates 4 are respectively located on the opposite sides of the two telescopic rods 3 and are fixedly connected to the telescopic rods 3, the telescopic end 2 and the bracket 1 are adjusted and fixed by a clamping mechanism 6, the inner cavity of the telescopic rod 3 is provided with a placement groove 5, the inner cavity of the placement groove 5 is provided with a positioning mechanism 7 for adjusting the telescopic end 2 and the telescopic rod 3, and the inner cavity of the placement groove 5 is provided with a transmission mechanism 8 used in conjunction with the positioning mechanism 7.

[0023] The clamping mechanism 6 includes two slide plates 603 fixed to the sides of the bracket and a clamping rod 601 movably connected to the two slide plates 603. The surface of the clamping rod 601 is sleeved with a first tension spring 602. The other end of the first tension spring 602 is fixedly connected to the bracket 1. A clamping groove 604 is provided on the telescopic end 2. One end of the clamping rod 601 passes through the bracket 1 and extends to the inner cavity of the clamping groove 604. The number of the clamping grooves 604 is multiple and evenly distributed vertically on the telescopic end 2. By setting the clamping mechanism 6, the clamping rod 601 plays a role in conveniently fixing the telescopic end 2 through the bracket 1.

[0024] The positioning mechanism 7 includes two positioning rods 701, the tops of the two positioning rods 701 on opposite sides are fixedly connected with oblique extrusion rods 702, the bottoms of the two positioning rods 701 on opposite sides are connected with second tension springs 703, and the middle parts of the two positioning rods 701 on opposite sides are provided with positioning blocks 704. By setting the positioning mechanism 7, the positioning rods 701 and the positioning blocks 704 can quickly position the telescopic rod 3, avoiding the situation that the telescopic rod 3 becomes loose after being adjusted to a suitable position, thereby affecting the protection effect of the foundation pit.

[0025] The transmission mechanism 8 includes a transmission rod 801, the bottom of which is fixedly connected to a connecting rod 802, and the left and right sides of the connecting rod 802 are fixedly connected to guide rods 803, and the side of the guide rod 803 close to the extrusion rod 702 contacts the surface of the extrusion rod 702. The inner cavity of the guide rod 803 is movably connected to a vertical rod 9, and the vertical rod 9 is fixedly connected to the inner wall of the placement groove 5. By setting the transmission mechanism 8, the transmission rod 801 plays a role in driving the two guide rods 803 to move through the connecting rod 802, and the guide rod 803 will contact the surface of the extrusion rod 702 during the movement, so as to quickly drive the positioning rod 701 to move through the extrusion rod 702, thereby avoiding the situation that the telescopic rod 3 cannot be separated from the fixed state when the telescopic rod 3 needs to be adjusted. By setting the vertical rod 9, the vertical rod 9 plays a role in limiting the guide rod 803, thereby avoiding the situation that the guide rod 803 is misplaced during the movement.

[0026] The bottom of the inner cavity of the placement slot 5 is fixedly connected with a plug block 10, and the left and right sides of the inner cavity of the plug block 10 are movably connected with plug rods 11, and the opposite sides of the two plug rods 11 are fixedly connected to the positioning rod 701, and the side of the second tension spring 703 close to the plug block 10 is fixedly connected to the plug block 10. By providing the plug block 10 and the plug rod 11, the plug block 10 can guide the positioning rod 701 through the plug rod 11, thereby avoiding the displacement of the positioning rod 701 when moving.

[0027] The left and right sides of the telescopic end 2 are provided with positioning grooves 12, and the number of the positioning grooves 12 is several and evenly distributed on the left and right sides of the telescopic end 2, and the two positioning blocks 704 are respectively connected with the positioning grooves 12 on the left and right sides. The multiple positioning grooves 12 play the role of being able to quickly connect with the positioning blocks 704 when the telescopic rod 3 is adjusted to multiple different positions.

[0028] When the utility model is used specifically, the clamping rod 601 is pulled, and the clamping rod 601 will be separated from the inner cavity of the clamping groove 604 during the movement and the first tension spring 602 will be stretched. After the clamping rod 601 is separated from the inner cavity of the clamping groove 604, the telescopic end 2 is pulled to adjust the height. After the adjustment is completed, the clamping rod 601 is released, and the tension of the first tension spring 602 is contracted, which will quickly drive the clamping rod 601 to insert into the inner cavity of the clamping groove 604 to fix the telescopic end 2 through the bracket 1. After the fixation is completed, the transmission rod 801 can be pulled. During the movement of the transmission rod 801, the two guide rods 803 will be driven to move through the connecting rod 802. During the movement, the guide rod 803 will contact the surface of the extrusion rod 702 and exert force on the extrusion rod 702, so that the extrusion rod 702 is squeezed. After being stressed, the pressure rod 702 will drive the positioning rod 701 to move. During the movement, the positioning rod 701 will stretch the second tension spring 703. After the positioning block 704 moves to the inner cavity of the positioning groove 12, the telescopic rod 3 is pulled to adjust the length and the protective plates 4 on both sides are inserted into the inner cavity of the foundation pit. After the protective plates 4 are inserted into the inner cavity of the foundation pit, the transmission rod 801 is released, and the guide rod 803 will fall down by itself to reset. During the resetting process, the squeezing rod 702 will lose the stressed state. After the squeezing rod 702 loses the state, the tension of the second tension spring 703 will shrink, which will quickly drive the positioning block 704 to insert into the inner cavity of the positioning groove 12 to fix the telescopic rod 3 through the telescopic end 2, thereby completing the stable support of the foundation pit to prevent the foundation pit from collapsing.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A geotechnical engineering foundation pit anti-collapse support structure, comprising a support (1), a telescopic end (2), two telescopic rods (3) and two protective plates (4), characterized in that: The lower end of the telescopic end (2) is inserted into the inner cavity of the bracket (1); the two telescopic rods (3) are movably connected to the two sides of the telescopic end (2); the two protective plates (4) are respectively located on the opposite sides of the two telescopic rods (3) and are fixedly connected to the telescopic rods (3); the telescopic end (2) and the bracket (1) are adjusted and fixed by a clamping mechanism (6); the inner cavity of the telescopic rod (3) is provided with a placement groove (5); the inner cavity of the placement groove (5) is provided with a positioning mechanism (7) for adjusting the telescopic end (2) and the telescopic rod (3); and the inner cavity of the placement groove (5) is provided with a transmission mechanism (8) used in conjunction with the positioning mechanism (7).

2. A geotechnical engineering foundation pit anti-collapse support structure according to claim 1, characterized in that: The clamping mechanism (6) comprises two slide plates (603) fixed on the side of the bracket (1) and a clamping rod (601) movably connected to the two slide plates (603); a first tension spring (602) is sleeved on the surface of the clamping rod (601); the other end of the first tension spring (602) is fixedly connected to the bracket (1); a clamping groove (604) is provided on the telescopic end (2); one end of the clamping rod (601) passes through the bracket (1) and extends to the inner cavity of the clamping groove (604); the number of the clamping grooves (604) is multiple and evenly distributed vertically on the telescopic end (2).

3. The anti-collapse support structure for a geotechnical engineering foundation pit according to claim 1, characterized in that: The positioning mechanism (7) comprises two positioning rods (701), the tops of the two positioning rods (701) on opposite sides are fixedly connected with oblique extrusion rods (702), the bottoms of the two positioning rods (701) on opposite sides are connected with second tension springs (703), and the middle parts of the two positioning rods (701) on opposite sides are provided with positioning blocks (704).

4. A geotechnical engineering foundation pit anti-collapse support structure according to claim 3, characterized in that: The transmission mechanism (8) comprises a transmission rod (801), the bottom of the transmission rod (801) is fixedly connected to a connecting rod (802), the left and right sides of the connecting rod (802) are fixedly connected to guide rods (803), and the side of the guide rod (803) close to the extrusion rod (702) contacts the surface of the extrusion rod (702).

5. A geotechnical engineering foundation pit anti-collapse support structure according to claim 4, characterized in that: The inner cavity of the guide rod (803) is movably connected to a vertical rod (9), and the vertical rod (9) is fixedly connected to the inner wall of the placement groove (5).

6. The anti-collapse support structure for a geotechnical engineering foundation pit according to claim 3, characterized in that: A plug-in block (10) is fixedly connected to the bottom of the inner cavity of the placement slot (5), and plug-in rods (11) are movably connected to the left and right sides of the inner cavity of the plug-in block (10), and the opposite sides of the two plug-in rods (11) are fixedly connected to the positioning rod (701), and the second tension spring (703) is fixedly connected to the plug-in block (10) on the side close to the plug-in block (10).

7. The anti-collapse support structure for a geotechnical engineering foundation pit according to claim 3, characterized in that: The left and right sides of the telescopic end (2) are both provided with positioning grooves (12), the number of the positioning grooves (12) is several and evenly distributed on the left and right sides of the telescopic end (2), and the two positioning blocks (704) are respectively connected to the positioning grooves (12) on the left and right sides.

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