Protective device for earthwork excavation process

Abstract

The utility model discloses a protective device for earthwork excavation process, which relates to the technical field of constructional engineering, and comprises a base, a support rod is arranged on the top surface of the base, four fixing cones are annularly connected to the bottom surface of the base, two protective net connecting pieces are connected to the outer surface of the support rod, and the protective net connecting pieces are connected to the outer surface of the support rod. According to the device, through cooperation of an adjusting block, a limiting pin, a guide block, a mounting groove, a limiting pin hole and a fixing ring, flexible fixing position adjustment can be conveniently conducted according to the shape of a construction site when the protective net is connected and mounted, so that it is guaranteed that the protective net can be matched with the shape of the construction site, and all-around protection is conducted; and through cooperation of the connecting blocks, the adjusting bolts, the mounting bases, the supporting rods, the sliding grooves and the adjusting holes, the fixing height of the two mounting bases on the outer surfaces of the supporting rods is flexibly adjusted, the connecting position is adjusted, and the protective net mounting and connecting device is suitable for mounting and connecting various protective nets of various sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a protective device for earth and stone excavation. Background Art

[0002] It is often necessary to excavate earth and stone at construction sites. During the excavation, stones and earth will roll down into the pits under the action of rain or inertia, seriously affecting the construction safety in the pits. For example, a Chinese patent discloses a safety protection structure for earth and stone excavation (Announcement No. CN216949775U). Although the safety protection structure can protect the periphery of the excavation, due to the uneven and irregular shapes of the construction sites during earth and stone excavation, it is impossible to perform all-round protection according to the shape of the construction site during protection, thereby failing to ensure the construction safety of the construction workers in the pits. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a protective device for the earth and stone excavation process, which solves the problem that all-round protection cannot be performed according to the shape of the construction site.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a protective device for earthwork excavation, comprising a base, a support rod is arranged on the top surface of the base, four fixed cones are connected to the bottom surface of the base in a ring shape, and two protective net connectors are connected to the outer surface of the support rod;

[0005] The protective net connecting piece includes a mounting seat, a mounting groove is provided on the outer surface of the mounting seat, two sliding blocks are connected to the inner side wall of the mounting seat in a ring shape, and four first connecting blocks are connected to the inner side wall of the mounting groove in a ring shape, and a fixing ring is provided at one end of each of the four first connecting blocks.

[0006] As a further technical solution of the utility model, sliding grooves are provided at the outer surface of the support rod corresponding to the sliding paths of the two sliders, the bottom surface of the mounting seat is connected to a second connecting block, the surface of the second connecting block is penetrated by an adjusting bolt, and a plurality of adjusting holes are provided on the outer surface of the support rod corresponding to the adjusting bolt.

[0007] As a further technical solution of the utility model, guide blocks are provided on the upper and lower surfaces of one end of the first connecting block, guide grooves are provided at the inner side walls of the installation groove corresponding to the sliding path of the guide block, and movable grooves are provided on the upper surface of the first connecting block.

[0008] As a further technical solution of the utility model, the inner side wall of the movable groove is connected to an adjusting block, a side of the adjusting block and the inner side wall thereof is connected to a reset spring, a limit pin is arranged on one side of the adjusting block, and the inner side wall of the mounting groove is annular and has a plurality of limit pin holes corresponding to the limit pin.

[0009] As a further technical solution of the utility model, the inner diameter of the mounting seat is adapted to the outer diameter of the support rod, the inner diameter of the slide groove is adapted to the sliding path of the slider, and the inner diameter of the adjustment hole is adapted to the outer diameter of the adjustment bolt.

[0010] As a further technical solution of the utility model, the inner diameter size of the guide groove is adapted to the sliding path of the guide block, the inner diameter size of the movable groove is adapted to the sliding path of the adjustment block, the inner diameter size of the plurality of limit pin holes is adapted to the outer diameter size of the limit pin, and the adjustment block is connected to the inner side wall of the movable groove through a reset spring.

[0011] Beneficial Effects

[0012] The utility model provides a protective device for earth and stone excavation. Compared with the prior art, it has the following beneficial effects:

[0013] 1. A protective device for earthwork excavation, which can facilitate the flexible adjustment of the fixed position according to the shape of the construction site when the protective net is connected and installed through the cooperation of the adjusting block, the limit pin and the guide block with the installation groove, the limit pin hole and the fixing ring, thereby ensuring that the protective net can adapt to the shape of the construction site, perform all-round protection, and ensure the construction safety of the construction site.

[0014] 2. A protective device for earth and stone excavation, which can flexibly adjust the fixed height of the two mounting seats on the outer surface of the support rod through the cooperation between the connecting block, the adjusting bolt, the mounting seat, the support rod, the slide groove and the adjusting hole, so as to facilitate the adjustment of the connection position according to the protection needs and the size of the protective net, and adapt to the installation and connection of various sizes of protective nets. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a protective device for earth and stone excavation;

[0016] Figure 2 It is a front view of a protective device for earthwork excavation;

[0017] Figure 3 It is a schematic diagram of the decomposed structure of a protective device for earthwork excavation;

[0018] Figure 4The present invention is a structural schematic diagram of a protective net connecting piece of a protective device used in the process of earth and stone excavation.

[0019] In the figure: 1. base; 2. support rod; 21. slide groove; 22. adjustment hole; 3. fixed cone; 4. protective net connecting piece; 41. mounting seat; 42. mounting groove; 43. slider; 44. first connecting block; 45. fixing ring; 46. guide block; 47. guide groove; 48. movable groove; 49. adjusting block; 401. limit pin; 402. reset spring; 403. limit pin hole; 404. second connecting block; 405. adjusting bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution for a protective device during earthwork excavation: a protective device for earthwork excavation, comprising a base 1, a support rod 2 is arranged on the top surface of the base 1, four fixing cones 3 are connected to the bottom surface of the base 1 in an annular shape, two protective net connectors 4 are connected to the outer surface of the support rod 2, the protective net connector 4 comprises a mounting seat 41, a mounting groove 42 is arranged on the outer surface of the mounting seat 41, two sliding blocks 43 are connected to the inner side wall of the mounting seat 41 in an annular shape, four first connecting blocks 44 are connected to the inner side wall of the mounting groove 42 in an annular shape, and a fixing ring 45 is arranged at one end of each of the four first connecting blocks 44.

[0022] like Figure 1-3 As shown, the outer surface of the support rod 2 and the corresponding positions of the sliding paths of the two sliders 43 are provided with sliding grooves 21, the bottom surface of the mounting seat 41 is connected with a second connecting block 404, the surface of the second connecting block 404 is penetrated with an adjusting bolt 405, and the outer surface of the support rod 2 and the corresponding adjusting bolts 405 are provided with a plurality of adjusting holes 22, the inner diameter size of the mounting seat 41 is adapted to the outer diameter size of the support rod 2, the inner diameter size of the sliding groove 21 is adapted to the sliding path of the slider 43, and the inner diameter size of the adjusting hole 22 is adapted to the outer diameter size of the adjusting bolt 405. It should be noted that the two mounting seats 41 and the four fixing rings 45 can all be connected and installed to the protective net, and the adjusting bolts 405 connected to the surface of the second connecting block 404 can cooperate with the plurality of adjusting holes 22 to fix and install the protective net according to the size of the protective net.

[0023] like Figure 3-4As shown, the upper and lower surfaces of one end of the first connecting block 44 are both provided with a guide block 46, the inner side wall of the mounting groove 42 and the corresponding position of the sliding path of the guide block 46 are provided with a guide groove 47, the upper surface of the first connecting block 44 is provided with a movable groove 48, the inner side wall of the movable groove 48 is connected to an adjustment block 49, one side of the adjustment block 49 and the inner side wall of the movable groove 48 is connected to a return spring 402, one side of the adjustment block 49 is provided with a limit pin 401, the inner side wall of the mounting groove 42 is annular and has a plurality of limit pin holes 403 corresponding to the limit pin 401, and the guide groove 47 is provided with a plurality of limit pin holes 403 corresponding to the limit pin 401. The inner diameter size is adapted to the sliding path of the guide block 46, the inner diameter size of the movable groove 48 is adapted to the sliding path of the adjustment block 49, the inner diameter size of the multiple limit pin holes 403 is adapted to the outer diameter size of the limit pin 401, and the adjustment block 49 is connected to the inner side wall of the movable groove 48 through the reset spring 402. It should be noted that the adjustment block 49 and the limit pin 401 cooperate with the multiple limit pin holes 403 to flexibly adjust the fixed position of the first connecting block 44 and the fixing ring 45 in the installation groove 42, thereby facilitating the adjustment of the installation and connection position of the protective net according to protection requirements.

[0024] Working principle of the utility model: when in use, according to the protection requirements and the size of the protection net, the adjusting bolts 405 on the surface of the second connecting block 404 on the bottom surface of the two mounting seats 41 are screwed outwards, so that the adjusting bolts 405 are separated from the adjusting holes 22, and then the two mounting seats 41 are slid along the outer surface of the support rod 2, so that the slider 43 slides along the inner wall of the slide groove 21, and after sliding to the appropriate position, the two mounting seats 41 are respectively located at the upper and lower connection ends of the protection net, and then the adjusting bolts 405 are screwed inwards, so that the adjusting bolts 405 are stuck in the corresponding adjusting holes 22, and the connection position of the protection net can be adjusted;

[0025] According to the number of connections of the protective net, the adjustment block 49 on the upper surface of the corresponding first connecting block 44 is slid along the inner wall of the movable groove 48, squeezing the reset spring 402 to separate the limit pin 401 from the limit pin hole 403, and then the first connecting block 44 is rotated along the inner wall of the installation groove 42 to make the fixing ring 45 and the fixing ring 45 at the corresponding position of the other support rod 2 be at a corresponding angle, and then the adjustment block 49 is released, and the reset spring 402 drives the adjustment block 49 to reset, so that the limit pin 401 is inserted into the inner wall of the corresponding limit pin hole 403, and the protective net can be connected and installed according to the protective shape.

Claims

1. A protective device for earthwork excavation, comprising a base (1), characterized in that: The top surface of the base (1) is provided with a support rod (2), the bottom surface of the base (1) is connected to four fixing cones (3) in a ring shape, and the outer surface of the support rod (2) is connected to two protective net connecting pieces (4); The protective net connecting member (4) comprises a mounting seat (41), the outer surface of the mounting seat (41) is provided with a mounting groove (42), the inner side wall of the mounting seat (41) is annularly connected to two sliding blocks (43), the inner side wall of the mounting groove (42) is annularly connected to four first connecting blocks (44), and one end of each of the four first connecting blocks (44) is provided with a fixing ring (45).

2. A protective device for earthwork excavation according to claim 1, characterized in that: The outer surface of the support rod (2) and the corresponding positions of the sliding paths of the two sliders (43) are provided with sliding grooves (21); the bottom surface of the mounting seat (41) is connected with a second connecting block (404); the surface of the second connecting block (404) is penetrated by an adjusting bolt (405); and the outer surface of the support rod (2) and the corresponding positions of the adjusting bolt (405) are provided with a plurality of adjusting holes (22).

3. The protective device for earthwork excavation according to claim 1, characterized in that: A guide block (46) is provided on the upper and lower surfaces of one end of the first connecting block (44), a guide groove (47) is provided at a position corresponding to the inner side wall of the mounting groove (42) and the sliding path of the guide block (46), and a movable groove (48) is provided on the upper surface of the first connecting block (44).

4. A protective device for earthwork excavation according to claim 3, characterized in that: The inner side wall of the movable groove (48) is connected to an adjustment block (49), a side surface of the adjustment block (49) and located on the inner side wall of (48) is connected to a return spring (402), a side surface of the adjustment block (49) is provided with a limit pin (401), and the inner side wall of the mounting groove (42) is annular and has a plurality of limit pin holes (403) corresponding to the limit pin (401).

5. The protective device for earthwork excavation according to claim 2, characterized in that: The inner diameter of the mounting seat (41) matches the outer diameter of the support rod (2), the inner diameter of the slide groove (21) matches the sliding path of the slider (43), and the inner diameter of the adjustment hole (22) matches the outer diameter of the adjustment bolt (405).

6. The protective device for earthwork excavation according to claim 4, characterized in that: The inner diameter of the guide groove (47) is compatible with the sliding path of the guide block (46), the inner diameter of the movable groove (48) is compatible with the sliding path of the adjustment block (49), the inner diameter of the plurality of limit pin holes (403) is compatible with the outer diameter of the limit pin (401), and the adjustment block (49) is connected to the inner side wall of the movable groove (48) via a return spring (402).

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