A safety protection device for underground pipe gallery construction

Abstract

The present invention discloses a safety protection device for underground pipe gallery construction, which relates to the technical field of safety protection, and comprises a baffle plate fitted with two side walls of a foundation pit, wherein a fastening mechanism is arranged inside the baffle plate, and the fastening mechanism comprises an adjusting plate located inside the baffle plate and slidably connected with the baffle plate, and at least two fastening blocks are slidably connected to a side of the baffle plate close to the foundation pit, and when the fastening block slides, the fastening blocks on the baffle plate slide in different directions, so that one of the fastening blocks can enhance the protection of the foundation pit through the baffle plate, and the buffer mechanism is arranged between two laterally opposite baffle plates, and is used for buffering the impact force when the adjusting plate slides, and the supporting mechanism is arranged at the bottom of the baffle plate, and is used for supporting the baffle plate and assisting in adjusting the force angle of the buffer mechanism; the present invention can achieve a better safety protection effect on the foundation pit.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection, and in particular to a safety protection device for construction of an underground pipe gallery. Background Art

[0002] Underground pipeline corridor, also known as common trench, is a municipal public facility built underground in the city for laying municipal public pipelines with unified planning, design, construction and maintenance. It refers to a public tunnel used for centralized laying of municipal pipelines such as electricity, communications, radio and television, water supply, drainage, heat, and gas in the city.

[0003] At present, when constructing underground pipe corridors, it is usually necessary to excavate the foundation pit on a preset path, and then the side walls of the foundation pit need to be safely protected to prevent the foundation pit from collapsing. Therefore, the side walls of the foundation pit need to be supported, and generally they are supported by guard plates and struts one by one. When the foundation pit partially collapses, the guard plates are susceptible to great impact force, which can easily affect other guard plates, resulting in reduced protection effect. At the same time, no buffering measures are taken to change the force impact, and the pre-tightening means cannot be automatically applied according to the different impact forces during collapse, which can easily endanger the personal safety of the workers.

[0004] Therefore, a safety protection device for underground pipe gallery construction is invented to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a safety protection device for the construction of an underground pipe gallery, which can effectively solve the technical problems in the background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a safety protection device for the construction of an underground pipe gallery, comprising a baffle plate that is fitted with the two side walls of a foundation pit, a fastening mechanism is arranged inside the baffle plate, the fastening mechanism comprises an adjusting plate located inside the baffle plate and slidably connected to the baffle plate, and at least two fastening blocks are slidably connected to one side of the baffle plate close to the foundation pit, when the fastening block slides, the fastening blocks on the same baffle plate slide in different directions, so that one of the fastening blocks can strengthen the protection of the foundation pit through the baffle plate; a buffer mechanism, the buffer mechanism is arranged between the two laterally opposite baffle plates, and is used to buffer the adjusting plate. The impact force when the plate slides, the buffer mechanism includes a strut located between the two laterally opposite baffles, the two ends of the strut are fixedly connected to the corresponding baffles, two spaced connection blocks are slidably connected to the strut, each of the connection blocks is hinged with a connecting rod, each of the connecting rod free ends is hinged with a buffer rod, each of the buffer rods is hinged with a fixed block at one end close to the adjustment plate, each of the fixed blocks is fixedly connected to the corresponding adjustment plate, and the fixed block is slidably connected to the baffle; a supporting mechanism, the supporting mechanism is arranged at the bottom of the baffle, for supporting the baffle and assisting in adjusting the force angle of the buffer mechanism.

[0007] Preferably, the fastening mechanism further comprises an auxiliary groove provided in the baffle, the adjustment plate is located in the auxiliary groove and is slidably connected to the auxiliary groove, and inclined guide grooves are provided on both vertical sides of the adjustment plate.

[0008] Preferably, one end of the fastening block close to the adjustment plate is fixedly connected to two support frames, and a guide rod located in the corresponding guide groove is fixedly connected between the two support frames.

[0009] Preferably, the fastening block is slidably connected to one end of the adjustment plate with a laterally extending positioning rod, the free end of the positioning rod is fixedly connected to the baffle, and both vertical sides of the adjustment plate are connected to the auxiliary groove via a first elastic member.

[0010] Preferably, the distance between the two guide grooves at one end close to the foundation pit is greater than the distance between the two ends away from the foundation pit, and the adjustment plate and the auxiliary groove are both I-shaped.

[0011] Preferably, two second elastic members are sleeved on the support rod and are spaced apart from each other in the transverse direction, and each of the second elastic members is located between the corresponding baffle plate and the connecting block.

[0012] Preferably, the supporting mechanism includes a fixing plate fixedly connected to the baffle, the fixing plate is provided with a mounting groove with an opening away from the baffle, a limiting plate is slidably connected in the mounting groove, one end of the limiting plate away from the baffle extends out of the mounting groove, and one end of the buffer rod away from the adjustment plate is hinged to the corresponding limiting plate.

[0013] Preferably, the limiting plate is provided with a sliding groove with its opening facing the support rod, a limiting block is slidably connected in the sliding groove, and the limiting block is connected to the sliding groove via a third elastic member.

[0014] Preferably, the fixing plate is provided with two limit grooves which are distributed laterally at intervals and communicated with the slide groove, the limit block can extend into the corresponding limit groove, and a push block which can contact the limit block is slidably connected in the slide groove.

[0015] Preferably, a plurality of vertically extending positioning piles are fixedly connected to one end of the fixing plate close to the foundation pit.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention provides a fastening mechanism, a buffer mechanism and a supporting mechanism. When collapse occurs at different positions of the foundation pit side wall, the fastening blocks at different positions can slide back to back under the action of the adjusting plate and the guide groove. According to the different collapse positions, the fastening blocks at different positions gradually extend into the soil under the action of soil gravity. The greater the distance that the fastening blocks extend into the soil, the greater the impact force that the baffle bears. At the same time, the chain collapse of the foundation pit is blocked, and the problem of large-scale collapse of the foundation pit is effectively prevented.

[0018] 2. The present invention, through the arrangement of the buffer rod, the connecting rod and the connecting block, not only fully reduces the impact force of the soil on the baffle plate during the sliding of the adjustment plate, but also changes the force point of the buffer rod on the baffle plate automatically as the position of the connection point between the adjustment plate and the buffer rod changes, so that the buffer rod can effectively support the baffle plate, and through the change of the angle of the buffer rod, it can also intuitively reflect the location of the local collapse of the foundation pit, thereby facilitating the staff to maintain the collapsed position and further ensuring the safety of the construction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the full cross-section structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the baffle, buffer mechanism and support mechanism in the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of the structure of the baffle, the buffer mechanism and the support mechanism in the present invention;

[0023] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A;

[0024] Figure 6 It is a schematic diagram of a partial expansion of the structure of the fastening mechanism in the present invention;

[0025] In the figure: 1. foundation pit; 2. baffle;

[0026] 3. Fastening mechanism; 301. Adjusting plate; 302. Fastening block; 303. Auxiliary groove; 304. Guide groove; 305. Support frame; 306. Guide rod; 307. Positioning rod; 308. First elastic member;

[0027] 4. Buffer mechanism; 401. Support rod; 402. Connecting block; 403. Connecting rod; 404. Buffer rod; 405. Fixing block; 406. Second elastic member;

[0028] 5. Support mechanism; 501. Fixed plate; 502. Mounting groove; 503. Limiting plate; 504. Sliding groove; 505. Limiting block; 506. Third elastic member; 507. Limiting groove; 508. Pushing block; 509. Positioning pile. DETAILED DESCRIPTION

[0029] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] In the prior art, during the construction of an underground pipe gallery, it is usually necessary to excavate a foundation pit 1 on a preset path. After the foundation pit 1 is excavated, the side walls of the foundation pit 1 need to be supported, and generally, the support is provided by guard plates and retaining rods one by one. When a partial collapse of the foundation pit 1 occurs, the guard plates are susceptible to great impact force, which can easily affect other guard plates, resulting in reduced protective effect. At the same time, no buffering measures are taken to change the force impact, and the pre-tightening means cannot be automatically applied according to the impact force during collapse, which can easily endanger the personal safety of the staff. This embodiment is specially invented to solve the above problems.

[0032] like Figures 1 to 3As shown, this embodiment provides a safety protection device for the construction of an underground pipe gallery, including a baffle 2 that is fitted to the two side walls of a foundation pit 1, a fastening mechanism 3 is arranged inside the baffle 2, the fastening mechanism 3 includes an adjusting plate 301 located inside the baffle 2 and slidably connected to the baffle 2, and at least two fastening blocks 302 are slidably connected to the side of the baffle 2 close to the foundation pit 1. When the fastening blocks 302 slide, the fastening blocks 302 on the same baffle 2 slide in different directions, so that one of the fastening blocks 302 can strengthen the protection of the foundation pit 1 through the baffle 2.

[0033] The buffer mechanism 4 is arranged between two laterally opposite baffles 2 and is used to buffer the impact force when the adjustment plate 301 slides.

[0034] The supporting mechanism 5 is arranged at the bottom of the baffle 2 and is used to support the baffle 2 and assist in adjusting the force angle of the buffer mechanism 4 .

[0035] The fastening mechanism 3 also includes an auxiliary groove 303 provided in the baffle 2, the adjustment plate 301 is located in the auxiliary groove 303 and is slidably connected to the auxiliary groove 303, and inclined guide grooves 304 are provided on both vertical sides of the adjustment plate 301, and the end of the fastening block 302 close to the adjustment plate 301 is fixedly connected to two support frames 305, and a guide rod 306 located in the corresponding guide groove 304 is fixedly connected between the two support frames 305, and the end of the fastening block 302 close to the adjustment plate 301 is slidably connected to a laterally extending positioning rod 307, and the free end of the positioning rod 307 is fixedly connected to the baffle 2, and the vertical sides of the adjustment plate 301 are connected to the auxiliary groove 303 through a first elastic member 308, and the distance between the two guide grooves 304 close to the foundation pit 1 is greater than the distance between the two ends away from the foundation pit 1, and the shape of the adjustment plate 301 and the auxiliary groove 303 are both I-shaped.

[0036] When in use, firstly, a plurality of baffles 2 are attached to the side wall of the foundation pit 1 through the fastening blocks 302, and the side of the fastening blocks 302 away from the baffles 2 is a wedge-shaped surface, which is not only conducive to inserting the fastening blocks 302 into the soil of the foundation pit 1 for pre-fixation, but also enables the fastening blocks 302 to slide when subjected to the gravity of the soil. The supporting mechanism 5 is placed at the bottom of the baffle 2 to pre-support the baffle 2, and then the buffer mechanism 4 is connected between the two laterally opposite baffles 2 and supported and fastened again. When the part between the two fastening blocks 302 collapses, the fastening block 302 near the opening of the foundation pit 1 is subjected to the gravity of the soil. The fastening block 302 slides along the baffle 2 under the action of the inclined surface of the fastening block 302, and then the fastening block 302 near the opening of the foundation pit 1 drives the guide rod 306 to slide toward the center of the foundation pit 1 through the two support frames 305. Since the distance between the two guide grooves 304 close to the side wall of the foundation pit 1 is greater than the distance away from the side wall 1, the fastening block 302 near the foundation pit 1 drives the adjustment plate 301 to slide upward along the auxiliary groove 303 through the guide rod 306 and the guide groove 304, and the fastening block 302 slides along the positioning rod 307, and the first elastic member 308 away from the opening of the foundation pit 1 is compressed.

[0037] Furthermore, the adjusting plate 301 slides downward and drives the guiding rod 306 away from the opening of the foundation pit 1 to move toward the side wall of the foundation pit 1 through the guiding groove 304, so that the guiding rod 306 away from the opening of the foundation pit 1 drives the fastening block 302 away from the opening of the foundation pit 1 to slide through the supporting frame 305, and the fastening block 302 away from the opening of the foundation pit 1 continues to extend out of the baffle plate 2 and gradually inserts into the soil. When the upper part of the baffle plate 2 is subjected to the impact force of the soil, the fastening block 302 away from the opening of the foundation pit 1 can be inserted deeper into the soil, thereby strengthening the fastening force of the baffle plate 2 on the side wall support of the foundation pit 1 again. When the part below the fastening block 302 away from the opening of the foundation pit 1 collapses partially, the fastening block 302 away from the foundation pit 1 is affected by the gravity of the soil and Under the action of the wedge-shaped surface of the fastening block 302, the fastening block 302 away from the foundation pit 1 drives the guide rod 306 to move through the support frame 305. At this time, the guide rod 306 drives the adjustment plate 301 to slide downward along the auxiliary groove 303 through the guide groove 304. The first elastic member 308 close to the opening of the foundation pit 1 is compressed, and the adjustment plate 301 drives the fastening block 302 close to the opening of the foundation pit 1 to be gradually inserted into the soil through the guide groove 304, the guide rod 306 and the support frame 305. As the depth of the fastening block 302 close to the opening of the foundation pit 1 inserted into the soil gradually increases, it can not only increase the fastening force of the baffle 2 on the protection of the foundation pit 1, but also prevent the chain collapse of the side wall of the foundation pit 1, thereby improving the stability of the safety protection of the foundation pit 1.

[0038] To sum up, through the arrangement of the above-mentioned related components, when collapse occurs at different positions of the side wall of the foundation pit 1, the fastening blocks 302 at different positions can slide back to back under the action of the adjusting plate 301 and the guide groove 304, and according to the different collapse positions, the fastening blocks 302 at different positions gradually extend into the soil under the action of soil gravity. The greater the distance that the fastening blocks 302 extend into the soil, the greater the impact force borne by the baffle 2. At the same time, it also prevents the foundation pit 1 from chain-like collapse, effectively prevents the problem of large-scale collapse of the foundation pit 1, improves the safety performance of the side wall support of the foundation pit 1, and ensures the personal safety of the workers during construction.

[0039] Example 2

[0040] When the foundation pit 1 collapses, the baffle 2 will be subjected to a large impact force and will not be able to buffer it, which is not conducive to the baffle 2 to better protect the side wall of the foundation pit 1. It is also not conducive to adjusting the force angle of the buffer mechanism 4 according to the position where the baffle 2 is subjected to the impact force. It cannot effectively reduce the impact force exerted on the baffle 2, thereby reducing the stability of the baffle 2 in supporting the side wall of the foundation pit 1. Therefore, further improvements are made based on the above embodiments.

[0041] like Figures 3 to 6 As shown, the buffer mechanism 4 includes a support rod 401 located between two laterally opposite baffles 2, both ends of the support rod 401 are fixedly connected to the corresponding baffles 2, two spaced connection blocks 402 are slidably connected to the support rod 401, each connection block 402 is hinged with a connecting rod 403, and a buffer rod 404 is hinged at the free end of each connecting rod 403, and each buffer rod 404 is hinged with a fixed block 405 at one end close to the adjustment plate 301, each fixed block 405 is fixedly connected to the corresponding adjustment plate 301, and the fixed block 405 is slidably connected to the baffle 2, and two laterally spaced second elastic members 406 are mounted on the support rod 401, and each second elastic member 406 is located between the corresponding baffle 2 and the connection block 402.

[0042] The support mechanism 5 includes a fixing plate 501 fixedly connected to the baffle 2, a mounting groove 502 with an opening away from the baffle 2 is formed on the fixing plate 501, a limiting plate 503 is slidably connected in the mounting groove 502, an end of the limiting plate 503 away from the baffle 2 extends out of the mounting groove 502, an end of the buffer rod 404 away from the adjustment plate 301 is hinged to the corresponding limiting plate 503, a sliding groove 504 with an opening toward the support rod 401 is formed on the limiting plate 503, and a limiting plate 503 is slidably connected in the sliding groove 504. A limit block 505 is connected, and the limit block 505 is connected to the slide groove 504 through a third elastic member 506. Two limit grooves 507 which are distributed laterally and are connected to the slide groove 504 are provided on the fixed plate 501. The limit block 505 can extend into the corresponding limit groove 507. A push block 508 which can contact the limit block 505 is slidably connected in the slide groove 504. A plurality of vertically extending positioning piles 509 are fixedly connected to one end of the fixed plate 501 close to the foundation pit 1.

[0043] When in use, first fix the fixing plate 501 on the supporting mechanism 5 to the bottom of the baffle 2, and insert the positioning pile 509 into the soil, at this time, the fixing plate 501 can support the baffle 2; when collapse occurs near the opening of the foundation pit 1, the fastening block 302 near the opening of the foundation pit 1 drives the adjusting plate 301 to slide upward along the baffle 2 through the guide rod 306 and the guide groove 304, so that the adjusting plate 301 drives the buffer rod 404 to move toward the opening of the foundation pit 1 through the fixing block 405, and the buffer rod 404 drives the connecting block 402 to slide along the support rod 401 toward the baffle 2 through the connecting rod 403, so that the second elastic member 406 is compressed, so that the second elastic member 406 can apply a certain fastening force to the baffle 2 again, thereby again The impact force of the soil is offset, and at the same time, the buffer rod 404 drives the limiting plate 503 to slide along the installation groove 502 toward the fixed plate 501. When the limit block 505 on the limiting plate 503 slides to just below the limit groove 507 close to the baffle 2, under the action of the third elastic member 506, the third elastic member 506 drives the limit block 505 to slide along the slide groove 504 and insert into the limit groove 507. In the process of the limit block 505 being inserted into the limit groove 507, the angles of the buffer rod 404 and the connecting rod 403 also change, which can buffer the force of the soil impacting the baffle 2. After the limit block 505 is inserted into the limit groove 507, the support point of the buffer rod 404 on the baffle 2 is moved upward, thereby changing the force point, which can better support the baffle 2.

[0044] When collapse occurs at the opening away from the foundation pit 1, the fastening block 302 away from the opening of the foundation pit 1 drives the adjustment plate 301 to slide downward along the baffle 2 through the guide rod 306 and the guide groove 304, so that the adjustment plate 301 drives the buffer rod 404 to move toward the bottom of the foundation pit 1 through the fixed block 405, and the buffer rod 404 drives the connecting block 402 to slide along the support rod 401 away from the baffle 2 through the connecting rod 403, and the second elastic member 406 is released, so that the second elastic member 406 no longer applies a certain fastening force to the baffle 2. At the same time, the buffer rod 404 drives the limiting plate 503 to slide along the installation groove 502 away from the fixed plate 501. When the limit block 505 on the limiting plate 503 slides to the bottom of the limit groove 507 away from the baffle 2, Under the action of the third elastic member 506, the third elastic member 506 drives the limit block 505 to slide along the slide groove 504 and insert into the limit groove 507. In the process of the limit block 505 being inserted into the limit groove 507, the angles of the buffer rod 404 and the connecting rod 403 also change, which can buffer the force of the soil impacting the baffle 2. After the limit block 505 is inserted into the limit groove 507, the support point of the buffer rod 404 on the baffle 2 moves downward, thereby automatically adjusting the support point of the buffer rod 404 and the baffle 2 according to different collapse positions, thereby improving the support effect, effectively avoiding the problem of large-scale collapse of the foundation pit 1, and ensuring the personal safety of the staff. The push block 508 is set, which can push the limit block 505 out of the limit groove 507 to release the limit.

[0045] To sum up, through the arrangement of the buffer rod 404, the connecting rod 403 and the connecting block 402, not only the soil impact force on the baffle plate 2 is fully reduced during the sliding of the adjusting plate 301, but also as the position of the connection point between the adjusting plate 301 and the buffer rod 404 changes, the force point of the buffer rod 404 on the baffle plate 2 is adaptively changed, so as to ensure that the buffer rod 404 can effectively support the baffle plate 2 at different collapse positions, and through the angle change of the buffer rod 404, the position of the local collapse of the foundation pit 1 can also be intuitively reflected, so as to facilitate the staff to maintain the collapsed position and further ensure the safety of the construction work.

[0046] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A safety protection device for underground pipe gallery construction, characterized in that: It includes baffles that fit the two side walls of the foundation pit, and a fastening mechanism is arranged inside the baffles; The fastening mechanism comprises an adjusting plate located inside the baffle and slidably connected to the baffle, and two fastening blocks are slidably connected to one side of the baffle close to the foundation pit, and when the fastening blocks slide, the fastening blocks on the same baffle slide in different directions, so that one of the fastening blocks can strengthen the protection of the foundation pit through the baffle; A buffer mechanism, wherein the buffer mechanism is arranged between the two laterally opposite baffles and is used to buffer the impact force when the adjustment plate slides; the buffer mechanism comprises a strut between the two laterally opposite baffles, both ends of the strut are fixedly connected to the corresponding baffles, two spaced connection blocks are slidably connected to the strut, each of the connection blocks is hinged with a connecting rod, each of the connecting rods is hinged with a buffer rod at its free end, each of the buffer rods is hinged with a fixed block at one end close to the adjustment plate, each fixed block is fixedly connected to the corresponding adjustment plate, and the fixed block is slidably connected to the baffle; A supporting mechanism is arranged at the bottom of the baffle and is used to support the baffle. The other end of the buffer rod is hinged to the supporting mechanism so that the supporting mechanism can assist in adjusting the force angle of the buffer mechanism.

2. The safety protection device according to claim 1, characterized in that: The fastening mechanism also includes an auxiliary groove provided in the baffle plate, the adjustment plate is located in the auxiliary groove and is slidably connected to the auxiliary groove, and obliquely arranged guide grooves are provided on both vertical sides of the adjustment plate.

3. The safety protection device according to claim 2, characterized in that: One end of the fastening block close to the adjustment plate is fixedly connected to two support frames, and a guide rod located in the corresponding guide groove is fixedly connected between the two support frames.

4. The safety protection device according to claim 3, characterized in that: One end of the fastening block close to the adjustment plate is slidably connected with a laterally extending positioning rod, a free end of the positioning rod is fixedly connected to the baffle, and both vertical sides of the adjustment plate are connected to the auxiliary groove through a first elastic member.

5. The safety protection device according to claim 4, characterized in that: The distance between the two guide grooves close to one end of the foundation pit is greater than the distance between the two guide grooves away from one end of the foundation pit, and the adjustment plate and the auxiliary groove are both in an I-shape.

6. The safety protection device according to claim 5, characterized in that: The support rod is sleeved with two second elastic members that are spaced apart in a transverse direction, and each of the second elastic members is located between the corresponding baffle plate and the connecting block.

7. The safety protection device according to claim 6, characterized in that: The supporting mechanism includes a fixing plate fixedly connected to the baffle, a mounting groove with an opening away from the baffle being opened on the fixing plate, a limiting plate being slidably connected in the mounting groove, one end of the limiting plate away from the baffle extending out of the mounting groove, and one end of the buffer rod away from the adjusting plate being hinged to the corresponding limiting plate.

8. The safety protection device according to claim 7, characterized in that: The limiting plate is provided with a sliding groove with an opening toward the support rod, the sliding groove is slidably connected with a limiting block, and the limiting block is connected to the sliding groove through a third elastic member.

9. The safety protection device according to claim 8, characterized in that: The fixing plate is provided with two limit grooves which are distributed at intervals in transverse direction and communicated with the slide groove. The limit block can extend into the corresponding limit groove. A push block which can contact with the limit block is slidably connected in the slide groove.

10. The safety protection device according to claim 9, characterized in that: One end of the fixing plate close to the foundation pit is fixedly connected with a plurality of vertically extending positioning piles.

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