Foundation pit guardrail net with splicing function

Abstract

The utility model discloses a foundation pit guardrail net with a splicing function, which belongs to the technical field of foundation pit guardrail nets and comprises a prefabricated base, an upright post is inserted in the prefabricated base, splicing grooves are arranged on two sides of the upright post, splicing pieces are arranged on two sides of each splicing groove, splicing heads are fixedly arranged at two ends of the main support rod, and detachable vertical rods are vertically arranged and detachably connected with the main support rod. The protective net pieces are connected with the main supporting rods and the detachable vertical rods through screws. The foundation pit guardrail net is technically characterized in that the supporting framework of the foundation pit guardrail net is formed by splicing stand columns, main supporting rods and detachable vertical rods, splicing heads fixedly arranged at the two ends of each main supporting rod are clamped in splicing grooves in a sliding mode to play a role in sharing main loads, and first connecting bolts for connection are mainly used for fixing the positions of the main supporting rods; the main supporting rods can be prevented from deviating in the installation process through the connection mode, installation is convenient, meanwhile, the two ends of the detachable vertical rods are connected with the main supporting rods in a clamped and spliced mode, and the same effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a foundation pit guardrail net technology field, specifically a kind of foundation pit guardrail net with splicing function. BACKGROUND

[0002] The foundation pit guardrail net, also known as temporary edge guardrail, temporary edge protection net, construction foundation pit safety protection net, etc., is a protective facility specially designed to prevent personnel, animals or objects from accidentally falling into the foundation pit. It is widely used in various large foundation pit projects, such as underground garages, subway stations, large commercial complexes, etc., as well as road maintenance, river regulation and other types of projects, playing an effective isolation and warning role, ensuring the safety of construction personnel and passing pedestrians.

[0003] The existing foundation pit guardrail net is mainly composed of upright columns, surrounding nets (meshes), horizontal beams, connectors and other parts. The parts are usually fixedly connected by bolts, i.e. the load of the connection node is shared by the bolts and their corresponding bolt holes. It does not have the splicing feature and cannot share the load through the splicing structure. It is prone to wear or deformation of the connection node during use. In addition, since the parts cannot be preliminarily connected through splicing, positioning and auxiliary fixing of the parts are required during assembly, which is not convenient for efficient assembly work. Therefore, the present application provides a foundation pit guardrail net with splicing function. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a foundation pit guardrail net with splicing function. The support framework of the foundation pit guardrail net is composed of three parts: upright columns, main support rods and detachable vertical rods. The splicing heads fixedly arranged at both ends of the main support rod are slidingly connected in the splicing slots, which can share the main load. The first connecting bolt used for connection is mainly used to fix the position, and the above connection form can avoid the deviation of the main support rod during installation. The detachable vertical rods are connected and spliced with the main support rods at both ends, which has the same effect as above. In addition, the splicing slots arranged on the outer side of the upright columns at the edge can also reserve the conditions for subsequent splicing. When it is necessary to widen the foundation pit guardrail net, only the end of the main support rod to be added needs to be inserted into the reserved splicing slot, which is convenient for construction and assembly. The technical problems of the prior art, such as the foundation pit guardrail net not having the splicing feature, being unable to share the load through the splicing structure, and being inconvenient for efficient assembly work, are solved.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is as follows:

[0006] The utility model provides a kind of foundation pit guardrail net with splicing function, including prefabricated base, wherein stand is inserted, and stand both sides are equipped with splicing groove, and splicing groove both sides are equipped with a plurality of splicing piece, main support rod, its both ends are fixedly provided with splicing head, splicing head is slidably arranged in splicing groove, and splicing head and splicing piece are fixedly connected by first connecting bolt, detachable vertical rod, its vertical arrangement, and with main support rod detachably connected, protective screen, it is connected by screw between main support rod and detachable vertical rod, top cover, it is covered in stand top and is clamped with splicing groove, the support framework of this foundation pit guardrail net is spliced by three parts of stand, main support rod and detachable vertical rod, wherein, the splicing head fixedly provided at the both ends of main support rod is slidably clamped in splicing groove, can play the role of sharing main load, and first connecting bolt used for connection is mainly used to fix its position, and the above-mentioned connection form can avoid the deviation of main support rod during installation, and simultaneously, the both ends of detachable vertical rod are clamped and spliced with main support rod, and the effect is the same as above, in addition, the splicing groove outside stand outside set at edge can also reserve the condition of subsequent splicing, when needing to widen foundation pit guardrail net, just need to clamp the end of main support rod to be added into the splicing groove reserved, to facilitate construction assembly.

[0007] In a possible implementation manner, the splicing groove is in the shape of a Chinese character "N", the splicing head is also in the shape of a Chinese character "N", and the sizes of the splicing groove and the splicing head are consistent. The above structure can ensure that the splicing head is closely fitted with the splicing groove, ensure the tightness of the connection between the splicing head and the splicing groove, and facilitate the load transmission through the structure.

[0008] In a possible implementation manner, the splicing piece includes two symmetrical fixing pieces, the inner side surfaces of the fixing pieces are flush with the slot opening of the splicing groove, and the inner side surfaces of the fixing pieces are fitted with the splicing head. The fixing piece and the splicing head are both provided with corresponding threaded holes. The above structure can ensure that the fixing piece is closely fitted with the splicing head, and further ensure the tightness of the connection between the fixing piece and the splicing head.

[0009] In a possible implementation manner, the detachable vertical rod includes a vertical rod body, L-shaped clamping plates are fixedly connected to the upper end and the lower end of the vertical rod body, the L-shaped clamping plates are fixedly connected with the main support rod by second connecting bolts, and the L-shaped clamping plates and the main support rod are both provided with corresponding threaded holes. Based on the above structure, the L-shaped clamping plates can be used to clamp and splice the vertical rod body and the main support rod.

[0010] In a possible implementation manner, a column end plate is fixedly arranged at the lower end surface of the stand, a connecting barrel is fixedly connected to the lower end surface of the column end plate, the prefabricated base includes a base shell, a slot is arranged in the base shell, and a positioning connecting piece is anchored at the bottom of the slot. The connecting barrel is insertedly connected with the positioning connecting piece. The above structure can use the positioning connecting piece to play a role of positioning and guiding when the connecting barrel is installed, so that the bottom of the stand can be arranged centrally in the base shell, and the positioning connecting piece can strengthen the bottom of the stand.

[0011] In one possible implementation, the connecting cylinder has a grouting inlet at the bottom of one side and a grouting outlet at the top of the other side. When grout is poured to fix the base shell to the column, some grout can enter the interior of the connecting cylinder through the grouting inlet, filling the interior with grout and fixing the connecting cylinder to the positioning connector, thereby ensuring the firmness of the connection and giving it a strong load-bearing capacity.

[0012] In one possible implementation, the positioning connector includes a base plate anchored inside the base housing, with positioning angle steel welded to the four corners of its upper end face. The positioning angle steel is snapped into the inner wall of the connecting cylinder. In the above structure, the positioning angle steel plays the role of positioning support, while a space is reserved between them for cement mortar to fix the two together.

[0013] In one possible implementation, the top cover includes a cover plate, the lower end face of which is fixedly provided with a stop plate that fits against the upper main support rod, and both sides of the lower end face are fixedly provided with plug-in ends that are plugged into the splicing groove. The above structure can realize the detachable installation of the top cover.

[0014] In summary, this utility model has the following beneficial technical effects:

[0015] The supporting frame of the foundation pit guardrail is composed of three parts: columns, main support rods, and detachable vertical rods. The splice joints fixed at both ends of the main support rods slide and snap into the splice grooves, which can play a role in sharing the main load. The first connecting bolts are mainly used to fix its position. The above connection method can prevent the main support rods from shifting during installation. At the same time, the two ends of the detachable vertical rods are snapped and spliced ​​with the main support rods, achieving the same effect.

[0016] In addition, the splicing grooves on the outside of the posts at the edge can also reserve conditions for subsequent splicing. When it is necessary to widen the foundation pit guardrail, the end of the main support rod to be added only needs to be inserted into the reserved splicing groove, which is convenient for construction and assembly. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0019] Figure 2 This is a schematic diagram of the structural configuration of this utility model;

[0020] Figure 3This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the column base structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the column base connection structure of this utility model.

[0023] In the diagram: 1. Precast base; 11. Base shell; 12. Positioning connector; 121. Base plate; 122. Positioning angle steel; 2. Column; 21. Splicing groove; 22. Column end plate; 23. Connecting cylinder; 24. Grouting outlet; 25. Grouting inlet; 3. Splicing piece; 31. Fixing plate; 4. Main support rod; 41. Splicing joint; 5. Detachable vertical rod; 51. Vertical rod body; 52. L-shaped clamping plate; 53. Second connecting bolt; 6. Protective mesh; 7. Top cover; 71. Cover plate; 72. Abutment plate; 73. Insertion end; 8. First connecting bolt. Detailed Implementation

[0024] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0025] like Figure 1 - Figure 2 As shown, this embodiment provides a pit guardrail with splicing function, including a prefabricated base 1, in which a post 2 is inserted. Splicing grooves 21 are provided on both sides of the post 2, and several splicing components 3 are provided on both sides of the splicing grooves 21. A main support rod 4 has splicing joints 41 fixedly installed at both ends. The splicing joints 41 are slidably disposed in the splicing grooves 21, and are fixedly connected to the splicing components 3 by a first connecting bolt 8. A detachable vertical rod 5 is vertically arranged and detachably connected to the main support rod 4. A protective mesh 6 is connected to both the main support rod 4 and the detachable vertical rod 5. The top cover 7 is connected by screws and is placed on top of the column 2 and snapped into the splicing groove 21. The supporting frame of the pit guardrail is composed of three parts: column 2, main support rod 4 and detachable vertical rod 5. The splicing joints 41 fixed at both ends of the main support rod 4 are slidably snapped into the splicing groove 21, which can play the role of sharing the main load. The first connecting bolt 8 is mainly used to fix its position. The above connection method can prevent the main support rod 4 from shifting during installation. At the same time, the two ends of the detachable vertical rod 5 are snapped into the main support rod 4, which has the same effect.

[0026] The splicing groove 21 is convex in shape, and the splicing joint 41 is also convex in shape. The dimensions of the two are consistent. The above structural form can ensure that the splicing joint 41 and the splicing groove 21 fit tightly together, ensuring the tightness of the connection between the two, and facilitating the transfer of load through the structure.

[0027] In addition, the splicing groove 21 on the outside of the post 2 at the edge can also reserve the conditions for subsequent splicing. When it is necessary to widen the foundation pit guardrail, it is only necessary to insert the end of the main support rod 4 to be added into the reserved splicing groove 21, which is convenient for construction and assembly.

[0028] like Figure 2 As shown, the splicing component 3 includes two symmetrically arranged fixing pieces 31, the inner side of which is flush with the opening of the splicing groove 21, and the inner side of which is in contact with the splicing joint 41. The fixing pieces 31 and the splicing joint 41 are provided with corresponding threaded holes. The above structure can ensure the tight fit between the fixing pieces 31 and the splicing joint 41, thereby ensuring the tightness of the connection between the two.

[0029] like Figure 3 As shown, the detachable vertical rod 5 includes a vertical rod body 51, with L-shaped clamping plates 52 fixedly connected to both its upper and lower ends. It is fixedly connected to the main support rod 4 by a second connecting bolt 53. Both the L-shaped clamping plate 52 and the main support rod 4 have corresponding threaded holes. Based on the above structure, the L-shaped clamping plate 52 can realize the snap-fit ​​splicing function between the vertical rod body 51 and the main support rod 4.

[0030] like Figure 4 As shown, a column end plate 22 is fixedly installed on the lower end face of the column 2, and a connecting cylinder 23 is fixedly connected to its lower end face. The prefabricated base 1 includes a base shell 11, in which a groove is opened, and a positioning connector 12 is anchored at the bottom of the groove. The connecting cylinder 23 is inserted and connected to the positioning connector 12. The above structure can guide the positioning of the connecting cylinder 23 during installation, so that the bottom of the column 2 can be centrally arranged in the base shell 11. At the same time, the positioning connector 12 can strengthen the bottom of the column 2. A grouting inlet 25 is opened on one bottom side of the connecting cylinder 23, and a grouting outlet 24 is opened on the top side of the other side. When grout is poured to fix the base shell 11 and the column 2, some grout can enter the interior of the connecting cylinder 23 through the grouting inlet 25, so that the interior is filled with grout, and the connecting cylinder 23 is fixedly connected to the positioning connector 12, thereby ensuring the firmness of the connection and giving it a strong load-bearing capacity.

[0031] like Figure 5 As shown, the positioning connector 12 includes a base plate 121 anchored inside the base housing 11, with positioning angle steel 122 welded to the four corners of its upper end face. The positioning angle steel 122 is snapped into the inner wall of the connecting cylinder 23. In the above structure, the positioning angle steel 122 plays the role of positioning support, and a space is reserved between them for cement mortar to fix the two together.

[0032] like Figure 2As shown, the top cover 7 includes a cover plate 71, with a stop plate 72 fixedly provided on its lower end face to fit against the upper main support rod 4, and plug-in ends 73 fixedly provided on both sides of its lower end face, which are plugged into the splicing groove 21. The above structure can realize the detachable installation of the top cover 7.

[0033] The working principle and usage process of this utility model:

[0034] The supporting frame of the foundation pit guardrail is composed of three parts: columns 2, main support rods 4, and detachable vertical rods 5. The splicing joints 41 fixed at both ends of the main support rods 4 are slidably engaged in the splicing grooves 21, which can play a role in sharing the main load. The first connecting bolts 8 are mainly used to fix its position, and the above connection method can prevent the main support rods 4 from shifting during the installation process.

[0035] Meanwhile, the two ends of the detachable vertical rod 5 are snapped together with the main support rod 4, achieving the same effect as above. Specifically, the detachable vertical rod 5 includes a vertical rod body 51, with L-shaped clamping plates 52 fixedly connected to both its upper and lower ends. These plates are fixedly connected to the main support rod 4 by the second connecting bolts 53. Both the L-shaped clamping plates 52 and the main support rod 4 have corresponding threaded holes. Based on the above structural form, the L-shaped clamping plates 52 can achieve the snapping and splicing function between the vertical rod body 51 and the main support rod 4.

[0036] In addition, the splicing groove 21 on the outside of the post 2 at the edge can also reserve the conditions for subsequent splicing. When it is necessary to widen the foundation pit guardrail, it is only necessary to insert the end of the main support rod 4 to be added into the reserved splicing groove 21, which is convenient for construction and assembly.

[0037] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A foundation trench guard fence having a splicing function, characterized by, The utility model relates to a prefabricated base (1) is inserted with stand (2), and both sides of stand (2) are provided with splicing groove (21), and both sides of splicing groove (21) are equipped with a plurality of splicing pieces (3); Main support rod (4) is fixedly provided with splicing head (41) at both ends, splicing head (41) is slidably arranged in splicing groove (21), and splicing head (41) is fixedly connected with splicing piece (3) through first connecting bolt (8); Detachable vertical rod (5) is vertically arranged and detachably connected with main support rod (4); Protective screen (6) is connected with main support rod (4) and detachable vertical rod (5) through screws; Top cover (7) is arranged on the top of stand (2) and is clamped with splicing groove (21). The splicing groove (21) is in the shape of a Chinese character "N", and the splicing head (41) is also in the shape of a Chinese character "N", and the sizes of the two are consistent.

2. The excavation fence mesh with splicing function according to claim 1, characterized in that: The splicing piece (3) includes two symmetrical fixed pieces (31), and the inner side surface of the fixed piece (31) is flush with the slot of the splicing groove (21), and the inner side surface of the fixed piece (31) is attached to the splicing head (41), wherein corresponding threaded holes are formed on the fixed piece (31) and the splicing head (41).

3. The excavation fence mesh with splicing function according to claim 1, characterized in that: The detachable vertical rod (5) includes a vertical rod body (51), and L-shaped clamping plates (52) are fixedly connected to the upper and lower ends of the vertical rod body (51), and the L-shaped clamping plates (52) are fixedly connected with the main support rod (4) through second connecting bolts (53), and corresponding threaded holes are formed on the L-shaped clamping plates (52) and the main support rod (4).

4. The excavation fence mesh with splicing function according to claim 1, characterized in that: The lower end surface of the stand (2) is fixedly provided with a column end plate (22), and the lower end surface of the column end plate (22) is fixedly connected with a connecting cylinder (23), the prefabricated base (1) includes a base shell (11), and a slot is formed in the base shell (11), and a positioning connecting piece (12) is anchored at the bottom of the slot, wherein the connecting cylinder (23) is connected with the positioning connecting piece (12) through insertion.

5. The excavation fence mesh with splicing function according to claim 1, characterized in that: The connecting cylinder (23) is provided with a grouting inlet (25) at the bottom of one side, and a grouting outlet (24) is formed at the top of the other side.

6. The excavation fence mesh with splicing function according to claim 5, characterized in that: The positioning connecting piece (12) includes a bottom plate (121) anchored in the base shell (11), and positioning angle steels (122) are welded to the upper end surfaces of the four corners of the bottom plate (121), and the positioning angle steels (122) are clamped with the inner wall of the connecting cylinder (23).

7. The excavation fence mesh with splicing function according to claim 5, characterized in that: The top cover (7) includes a cover plate (71), and a resisting plate (72) is fixedly arranged on the lower end surface of the cover plate (71) and attached to the upper main support rod (4), and plug-in end heads (73) are fixedly arranged on the lower end surfaces of both sides of the cover plate (71) and are connected with the splicing groove (21) through insertion.

8. The excavation fence mesh with splicing function according to claim 1, characterized in that: ​

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