Convenient assembly type foundation pit safety slope protection

Abstract

A convenient assembled foundation pit safety slope protection, comprising a plurality of assembly plates that can be disassembled and connected end to end in a transverse direction, and a plurality of anchor rods for nailing each assembly plate to the soil surface. The assembly plates are made of polymer materials through an integrated molding process, and a plurality of anchor holes for the corresponding anchor rods to pass through are provided on the assembly plates. A plurality of assembly plates can be disassembled and connected end to end to form a group of slope protection surfaces. The present invention provides a convenient assembled foundation pit safety slope protection, which is mainly composed of assembly plates made of polymer materials that can be disassembled and assembled end to end in a transverse direction, and the assembly plates are nailed to the soil slope surface by anchor rods. The assembly plates are easy to manufacture, effectively block water, protect the soil layer, avoid soil slope collapse caused by the soil layer absorbing water, and ensure construction safety. There is no noise or dust during construction, and assembly is faster. It is recyclable and green.

Description

Technical Field

[0001] The invention relates to a convenient assembled foundation pit safety slope protection. Background Art

[0002] During the construction process of foundation pit construction, in order to protect the bottom of the foundation pit, a foundation pit slope protection is usually set up on the soil slope around the foundation pit support. Its function is to cover the soil layer to prevent rainwater from eroding the soil layer and causing landslides on the soil slope, causing mud to flow to the bottom of the trench, causing silt or quicksand at the bottom of the trench, affecting normal construction.

[0003] Conventional foundation pit slope protection adopts the concrete spraying and anchor construction method, that is, tying steel mesh on the foundation pit slope, arranging drainage holes, and then high-pressure spraying concrete to form a reinforced concrete surface slope protection layer about 8 cm thick to prevent soil erosion on the slope surface. The construction is slow and difficult. Due to the use of concrete spraying, the construction site is dusty and the environment is poor.

[0004] A Chinese patent with application publication number CN 108797608 A discloses an assembled bamboo strip foundation pit slope protection and a construction method thereof, wherein bamboo strips are assembled to form a foundation pit slope protection, including a foundation pit, wherein the foundation pit includes an upper soil body, a platform and a lower soil body, and bamboo strips are laid on the foundation pit, and the bamboo strips are connected to the foundation pit by bamboo nails. After the use of the foundation pit is over, the bamboo strips are removed for recycling and reuse. However, the bamboo strips themselves are troublesome to make, and the bamboo strips are connected to each other by manual hand-tying points, which is relatively troublesome to construct and install. Moreover, the bamboo strips are easy to penetrate water. In the case of heavy rain combined with loose soil, the soil that absorbs a large amount of rainwater still has the possibility of slope collapse, which poses a safety hazard. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a convenient assembled foundation pit safety slope protection.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a convenient assembled foundation pit safety slope protection, including multiple assembly plates that can be disassembled and connected laterally end to end, and multiple anchor rods that nail each assembly plate to the soil surface, the assembly plates are made of polymer materials through an integrated molding process, and the assembly plates are provided with multiple anchor holes for the corresponding anchor rods to pass through, and multiple assembly plates can be disassembled and connected together end to end to form a group of slope protection surfaces.

[0007] In certain embodiments, when there are two or more groups of the conveniently assembled foundation pit safety slope protection, the edges of the two adjacent groups of the slope protection surfaces are connected by a connecting strip, including a hard connecting part made of hard material located on both sides, and an intermediate elastic band made of soft material connected between the two hard connecting parts and capable of adapting to the angle between the two adjacent groups of slope protection surfaces. The hard connecting part and the intermediate elastic band are made of a polymer material as a whole through a co-extrusion process, and the hard connecting part can be detachably connected to the corresponding edge of the slope protection surface.

[0008] In certain embodiments, the two hard connection parts respectively have a groove capable of accommodating the edge of the slope protection surface, the notches of the two grooves are arranged opposite to each other, and the middle elastic band is composed of multiple elastic layers.

[0009] In certain embodiments, each group of the slope protection surfaces further includes a plurality of purlins, each of the purlins is laterally pressed on a plurality of the assembly plates, and the purlins are connected to the upper ends of the anchor rods.

[0010] In certain embodiments, each of the assembly panels is formed as a whole by longitudinally extruding a polymer material.

[0011] In certain embodiments, the lower portion of the anchor rod has fins that gradually widen spirally upward from the lower end of the anchor rod.

[0012] In certain embodiments, the convenient assembled foundation pit safety slope protection also includes steps installed on all slope protection surfaces for people to walk on, and two sets of handrails located on both sides of the steps, and the steps and the handrails are respectively fixedly connected to the corresponding upper ends of the anchor rods.

[0013] In some embodiments, each of the assembled panels includes a panel body, a locking structure and a locking groove structure arranged on the opposite side edges of the panel body, the locking structure and the locking groove structure are respectively formed by extending the same cross-section along the longitudinal straight line of the panel body, the cross-section of the locking groove structure includes an inclined entry and exit channel, a locking groove connected to the entry and exit channel, the entry and exit channel has an entry and exit guide inclined surface, the surface where the entry and exit guide inclined surface is located intersects with the bottom support surface of the panel body, the cross-section of the locking structure includes a locking main body, a convex groove formed on the surface of the locking main body The locking edge can be inserted into the locking groove structure through the locking structure, and then rotated to match to achieve connection. After one splicing plate is tilted so that the locking structure is pushed horizontally into the access channel of the other splicing plate to the bottom, it is rotated downward until the two splicing plates are relatively flat, and the two splicing plates are connected. When the two splicing plates are in a connected state, the locking edge is inserted into the corresponding locking groove, and one splicing plate is rotated upward to be tilted so that the locking structure is horizontally withdrawn from the bottom of the access channel of the other splicing plate, and the two splicing plates are separated.

[0014] In some embodiments, a channel lower edge and a channel upper edge are formed on both sides of the entrance and exit channel. When the two are projected onto the plane where the bottom supporting surface of the plate body is located, the channel lower edge is located on the outside of the channel upper edge, and a first limiting angle a that can be plugged into and cooperate with the channel lower edge is formed between the lock body and its plate body. When the two assembled plates are in a connected state, the channel lower edge is inserted within the first limiting angle a, and a rainwater collection groove is formed between the channel upper edge and the upper part of the plate body corresponding to the lock body.

[0015] In some embodiments, the locking groove is located at the bottom of the locking groove structure and extends upward. There is a downward-protruding inward-facing convex edge between the locking groove and the entry and exit channel. The locking edge is formed by the upward protrusion of the outer edge of the lock body. A second limiting angle b is formed between the locking edge and the lock body that can be inserted and cooperated with the inward-facing convex edge. When the two assembly panels are in a connected state, the locking edge is inserted in the locking groove, and the inward-facing convex edge is inserted in the second limiting angle b.

[0016] In some embodiments, the entry and exit guiding slope includes an upper guiding slope formed on the upper edge of the channel and a lower guiding slope formed on the lower edge of the channel, the upper guiding slope is parallel to the lower guiding slope, the locking slot structure also includes a translation channel connecting the entry and exit channel with the locking slot, the translation channel has an upper flat push surface arranged on the upper inner buckle convex edge, and a lower flat push surface located below and intersecting with the lower guiding slope, the upper flat push surface and the lower flat push surface are parallel to the bottom supporting surface of the plate body, the locking body protrudes downward to form a rotating fulcrum edge for facilitating the rotation of the two assembly plates, the rotating fulcrum edge has a first edge bevel and a second edge bevel, when the locking structure moves in the translation channel, the first edge bevel is pressed on the lower edge of the channel, and when the two assembly plates are in a connected state, the second edge bevel conflicts with the lower guide bevel.

[0017] In some embodiments, the surface where the entry and exit guide slope is located intersects with the bottom support surface of the plate body to form an angle c, and the angle c is 20°-70°.

[0018] The scope of the present invention is not limited to the technical solutions formed by a specific combination of the above technical features, but also includes other technical solutions formed by any combination of the above technical features or their equivalent features. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in this application.

[0019] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the present invention provides a convenient assembled foundation pit safety slope protection, which is mainly composed of assembled panels made of polymer materials that can be assembled horizontally from head to tail and can be removably assembled, and the assembled panels are nailed to the soil slope surface by anchor rods. The assembled panels are easy to make, effectively block water, protect the soil layer, avoid soil slope collapse caused by soil layer absorbing water, and ensure construction safety. There is no noise or dust during construction, and the assembly is faster. It is recyclable and can be reused, which is green and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 A schematic diagram of the convenient assembled foundation pit safety slope protection;

[0021] Attached Figure 2 A diagram of the convenient assembled foundation pit safety slope protection (without steps or handrails);

[0022] Attached Figure 3 It is a schematic diagram of the cross section of the convenient assembled foundation pit safety slope protection;

[0023] Attached Figure 4 It is a schematic diagram of the cross section of the assembly board;

[0024] Attached Figure 5 For attachment Figure 4 A magnified schematic diagram of point A;

[0025] Attached Figure 6 For attachment Figure 4 An enlarged schematic diagram of point B;

[0026] Attached Figure 7 A schematic diagram of the assembly process between two adjacent assembly panels (assembly panel embodiment 1);

[0027] Attached Figure 8 A schematic diagram of the assembly process between two adjacent assembly panels (assembly panel embodiment 2);

[0028] Attached Fig. 9 This is a schematic end view of a first embodiment of a connecting strip;

[0029] Attached Fig.10 This is a schematic end view of a second embodiment of a connecting strip;

[0030] Among them: 1. Assembling plate; 2. Anchor rod; 21. Fin; 3. Connecting strip; 31. Hard connection part; 32. Middle elastic band; 4. Purlin; 5. Step; 6. Handrail; 10. Plate body; 11. Locking structure; 111. Locking body; 112. Locking edge; 113. Rotation fulcrum edge; 11S1. First edge bevel; 11S2. Second edge bevel; 12. Locking groove structure; 121. Access channel; 122. Translation channel; 123. Locking groove; 124. Lower edge of channel; 125. Upper edge of channel; 126. Inward buckling convex edge; 12S1. Upper guiding bevel; 12S2. Lower guiding bevel; 12S3. Upper flat push surface; 12S4. Lower flat push surface. DETAILED DESCRIPTION

[0031] As attached Figure 1-3 As shown, a convenient assembled foundation pit safety slope protection includes a plurality of assembly plates 1 which can be disassembled and connected laterally end to end, and a plurality of anchor rods 2 for nailing each assembly plate 1 to the soil surface.

[0032] The assembly board 1 is made of polymer material through an integrated molding process, such as injection molding process, extrusion process, etc. In this embodiment, the extrusion process is used, which is more flexible and convenient to process, and the longitudinal length of the assembly board 1 can be cut according to needs. Polymer materials are common materials on the market. In this embodiment, the most suitable is general plastic, such as PE, PP, PVC, etc. Multiple assembly boards 1 are detachably connected together at the head and tail to form a set of slope protection surfaces.

[0033] In this embodiment, the assembly plate 1 is implemented as an embodiment 1. In order to facilitate disassembly and assembly, a disassembly structure that is convenient for disassembly is provided on the assembly plate 1, as shown in the attached Figure 4 -Attached Figure 7 As shown, each assembly board 1 includes a board body 10 , a locking structure 11 and a locking groove structure 12 disposed on two opposite sides of the board body 10 .

[0034] The lock structure 11 and the lock groove structure 12 are respectively formed by extending the same cross section along the longitudinal straight line of the plate body 10. Figure 5 , 7As shown, the cross section of the lock groove structure 12 includes an inclined access channel 121, a locking groove 123 connected to the access channel 121, and a translation channel 122 connecting the access channel 121 with the locking groove 123. The access channel 121 forms a lower channel edge 124 and an upper channel edge 125 on both sides. When the two are projected on the plane where the bottom support surface of the plate body 10 is located, the lower channel edge 124 is located outside the upper channel edge 125. The access channel 121 has an access guide inclined surface. The surface where the access guide inclined surface is located intersects with the bottom support surface of the plate body 10 to form an angle c, and the angle c is 30°-40°. Usually, the assembly board is 1.5-3 meters long in the longitudinal direction. This inclination angle is convenient for workers to hold it horizontally and tilt it downward to align and insert it. Specifically, the entry and exit guide slopes include an upper guide slope 12S1 formed on the upper edge 125 of the channel and a lower guide slope 12S2 formed on the lower edge 124 of the channel, and the upper guide slope 12S1 is parallel to the lower guide slope 12S2. The locking groove 123 is located at the bottom of the locking groove structure 12 and extends upward. There is an inner buckle convex edge 126 convex downward between the locking groove 123 and the entry and exit channel 121. The translation channel 122 has an upper flat push surface 12S3 set on the upper inner buckle convex edge 126 and a lower flat push surface 12S4 located below and intersecting with the lower guide slope 12S2. The upper flat push surface 12S3 and the lower flat push surface 12S4 are parallel to the bottom support surface of the plate body 10.

[0035] As attached Figure 6 , 7 As shown, the cross-section of the lock structure 11 includes a lock body 111 and a locking edge 112 protruding on the surface of the lock body 111. Specifically, the locking edge 112 is formed by the outer edge of the lock body 111 protruding upward, and a second limiting angle b that can be plugged with the inner buckle convex edge 126 is formed between the locking edge 112 and the lock body 111. A first limiting angle a that can be plugged with the lower edge 124 of the channel is formed between the lock body 111 and its plate body 10. The lock body 111 also has a rotating fulcrum edge 113 protruding downward to facilitate the rotation of the two assembly plates 1. The rotating fulcrum edge 113 has a first edge bevel 11S1 and a second edge bevel 11S2.

[0036] Through the above locking structure 11 and locking groove structure 12, any two assembly panels 1 can be assembled and connected. The locking structure 11 of one assembly panel 1 is inserted horizontally and tilted into the locking groove structure 12 of another assembly panel 1 on the soil slope. After insertion, it is pushed flat to the bottom, and then rotated downward to place the assembly panel 1 on the soil slope. The two assembly panels 1 are flattened to achieve a matching connection. When the locking structure 11 moves in the translation channel 122, the first angular bevel 11S1 presses on the lower edge 124 of the channel, and also plays a pushing and guiding role. On the contrary, the two assembly panels 1 in the connected state are separated, and one assembly panel 1 is rotated upward to be tilted, and the tilt angle is consistent with the access channel 121, and then the locking structure 11 is withdrawn horizontally from the bottom of the access channel 121 to the outside, so that the two assembly panels 1 are separated.

[0037] When the two assembly boards 1 are in a connected state, the lower edge 124 of the channel is inserted into the first limiting angle a, the locking edge 112 is inserted into the locking groove 123, the inner buckle convex edge 126 is inserted into the second limiting angle b, and the second edge bevel 11S2 conflicts with the lower guide bevel 12S2. After assembly, the assembly boards 1 are naturally limited, the position is unique and flat, and the locking is secure. The worker holds an assembly board, tilts it horizontally downward and inserts it. The push is smooth, convenient and fast. One person can assemble it quickly, the construction environment is good, and it can be assembled quickly without dust. Moreover, a rainwater collection groove is naturally formed between the upper edge 125 of the channel and the upper part of the plate body 10 corresponding to the lock body 111, which is convenient for collecting rainwater, and then drainage pipes and other facilities are installed below to drain the rainwater away.

[0038] The second embodiment of the assembly board 1 is different from the first embodiment in that the lock structure 11 has two locking edges 112 at the top and bottom, and no rotation fulcrum edge 113; and there is no translation channel 122 in the lock groove structure 12, and there are two locking grooves, which are respectively located at the upper and lower sides of the access channel 121. After the assembly board 1 is inserted horizontally and tilted to the bottom, it is rotated downward to flatten the two assembly boards 1, and the two locking edges 112 are respectively inserted into the corresponding locking grooves 123. The two assembly boards 1 can also be connected. However, in the first embodiment of the assembly board 1, the inner buckle convex edge 126 is thicker and the locking is more secure.

[0039] In order to firmly nail the assembly plate to the soil, the lower part of the anchor rod 2 has a fin 21 that spirals upward and gradually widens from the lower end of the anchor rod 2. The anchor rod 2 is driven into the soil by rotation and firmly combined with the soil, leaving the upper part of the anchor rod 2 on the surface of the soil. The assembly plate 1 of the slope protection is provided with a plurality of anchor holes for the corresponding anchor rods 2 to penetrate, and the assembly plate 1 is sleeved on the upper part of the corresponding anchor rod 2.

[0040] The soil slope is usually determined by the excavation method, and is usually stepped, such as an upper slope, a platform, and a lower slope; as shown in this embodiment, an upper platform, a slope, and a lower platform. The platform and the slope each require their own slope protection surface, so in this embodiment, the convenient assembled foundation pit safety slope protection has at least three sets of slope protection surfaces, corresponding to the upper platform, the slope, and the lower platform.

[0041] The edges of two adjacent sets of slope protection surfaces are connected by connecting strips 3, as shown in the attached Figure 1-3 As shown in Figures 9 and 10, the connecting strip 3 includes a hard connecting portion 31 made of a hard polymer material located on both sides, and an intermediate elastic band 32 made of a soft polymer elastomer material and capable of adapting to the angle between two adjacent groups of slope protection surfaces. The hard connecting portion 31 and the intermediate elastic band 32 are made of a polymer material through a co-extrusion process to form an integral body. The hard connecting portion 31 is detachably connected to the edge of the corresponding slope protection surface. In detail, the two hard connecting portions 31 are respectively provided with a groove capable of accommodating the edge of the slope protection surface, and the notches of the two grooves are arranged back to back, and the intermediate elastic band 32 is composed of multiple elastic layers. The edges of the upper and lower slope protection surfaces are respectively clamped in the grooves on both sides of the connecting strip 3. The connecting strip 3 not only plays the role of connecting the two slope protection surfaces, but also strengthens the flatness of the slope protection surface.

[0042] Each set of slope protection surfaces also includes multiple purlins 4, each of which is pressed laterally on multiple assembly plates 1. The purlins 4 are connected to the upper ends of the anchor rods 2 to enhance the flatness of the slope protection surfaces and form multiple slope protection surfaces and anchor rods 2 into a rigid whole.

[0043] In this embodiment, the connecting strip 3 and the purlin 4 complement each other, and the overall rigidity, coordination, neatness and appearance are better. However, in fact, it is also possible to use only the connecting strip 3 or only the purlin 4. If there is no purlin, the dense anchor rod 2 can also play a fixing role, and the connecting strip 3 is necessary to achieve the connection between adjacent slope protection surfaces. If the purlin 4 is used alone, the connecting strip 3 can also be omitted, and the adjacent slope protection surfaces are overlapped.

[0044] The convenient assembled foundation pit safety slope protection also includes steps 5 installed on all slope protection surfaces for people to walk on, and two sets of handrails 6 located on both sides of the steps 5. The steps 5 and the handrails 6 are fixedly connected to the upper ends of the corresponding anchor rods 2 respectively.

[0045] During installation, first calculate the required position of the anchor rod 2, screw the corresponding anchor rod 2 into the soil, put the assembly plate 1 on the anchor rod, and assemble the two adjacent assembly plates 1 horizontally and tilted by hand, and then a set of slope protection surfaces is completed. In this way, the required slope protection surface is completed, and the connecting strip 3 is installed between the upper and lower slope protection surfaces. Because the middle of the connecting strip 3 is made of soft material, it can be deformed and easy to install. After completion, the purlin 4 is installed on the upper part of the upper rod 2 to form a rigid whole. Steps and handrails can be installed on the upper end of the anchor rod 2 as needed.

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A convenient assembled foundation pit safety slope protection, characterized by: The invention comprises a plurality of assembly plates (1) which are detachably connected end to end in a transverse direction, and a plurality of anchor rods (2) for nailing each assembly plate (1) to a soil surface. The assembly plates (1) are made of a polymer material through an integrated molding process. The assembly plates (1) are provided with a plurality of anchor rod holes for corresponding anchor rods (2) to pass through. The plurality of assembly plates (1) are detachably connected end to end to form a set of slope protection surfaces. Each assembly plate (1) comprises a plate body (10), a locking structure (11) and a locking groove structure (12) which are arranged on two opposite side edges of the plate body (10) in a transverse direction. The locking structure (11) and the locking groove structure (12) are respectively formed by straightly extending the same cross section along the longitudinal direction of the plate body (10). The cross section of the locking groove structure (12) comprises an inclined access channel (121) and a locking groove (123) which is connected to the access channel (121). The access channel (121) has an access guide inclined surface. The surface where the entry and exit guide slope is located intersects with the bottom support surface of the plate body (10), the cross section of the locking structure (11) includes a locking body (111), and a protruding locking edge (112) formed on the surface of the locking body (111), and any two assembly plates (1) are connected by being inserted into the locking groove structure (12) through the locking structure (11) in a transversely inclined manner and then rotating to cooperate, and one assembly plate is tilted so that the locking structure (11) is pushed transversely into the other assembly plate (1 ) to the bottom of the access channel (121), the two assembling panels (1) are rotated downward until the two assembling panels (1) are relatively flat, thereby connecting the two assembling panels (1); when the two assembling panels (1) are in a connected state, the locking edges (112) are inserted into the corresponding locking grooves (123), and one assembling panel is rotated upward to be tilted, so that the locking structure (11) is laterally withdrawn from the bottom of the access channel (121) of the other assembling panel (1), thereby separating the two assembling panels (1).

2. The convenient assembled foundation pit safety slope protection according to claim 1 is characterized by: When the conveniently assembled foundation pit safety slope protection has two or more groups, the edges of two adjacent groups of slope protection surfaces are connected by a connecting strip (3), the connecting strip comprising a hard connecting portion (31) made of a hard material located at both sides, and a middle elastic band (32) made of a soft material connected between the two hard connecting portions (31) and capable of adapting to the angle between the two adjacent groups of slope protection surfaces. The hard connecting portion (31) and the middle elastic band (32) are integrally formed by a polymer material through a co-extrusion process, and the hard connecting portion (31) is detachably connected to the corresponding edge of the slope protection surface.

3. The convenient assembled foundation pit safety slope protection according to claim 2 is characterized by: The two hard connection parts (31) are respectively provided with a slot capable of accommodating the edge of the slope protection surface, and the notches of the two slots are arranged opposite to each other. The middle elastic band (32) is composed of multiple elastic layers.

4. The convenient assembled foundation pit safety slope protection according to claim 1 is characterized by: Each group of the slope protection surfaces also includes a plurality of purlins (4), each of the purlins (4) is respectively pressed laterally onto a plurality of the assembly plates (1), and the purlins (4) are connected to the upper ends of the anchor rods (2).

5. The convenient assembled foundation pit safety slope protection according to claim 1 is characterized by: Each of the assembly panels (1) is formed as a whole by extruding a polymer material in the longitudinal direction.

6. The convenient assembled foundation pit safety slope protection according to claim 1 is characterized by: The lower part of the anchor rod (2) has a fin (21) which spirals upward and gradually widens from the lower end of the anchor rod (2).

7. The convenient assembled foundation pit safety slope protection according to claim 6 is characterized by: The conveniently assembled foundation pit safety slope protection further comprises steps (5) installed on all slope protection surfaces for people to walk on, and two sets of handrails (6) located on both sides of the steps (5), wherein the steps (5) and the handrails (6) are respectively fixedly connected to the upper ends of the corresponding anchor rods (2).

8. The convenient assembled foundation pit safety slope protection according to claim 6 is characterized by: A channel lower edge (124) and a channel upper edge (125) are formed on both sides of the inlet and outlet channel (121). When the two are projected onto the plane where the bottom support surface of the plate body (10) is located, the channel lower edge (124) is located outside the channel upper edge (125). A first limiting angle a that can be plugged into the channel lower edge (124) is formed between the locking body (111) and its plate body (10). When the two assembled plates (1) are in a connected state, the channel lower edge (124) is inserted into the first limiting angle a, and a rainwater collection groove is formed between the channel upper edge (125) and the upper part of the plate body (10) corresponding to the locking body (111).

9. The convenient assembled foundation pit safety slope protection according to claim 7 is characterized by: The locking groove (123) is located at the bottom of the locking groove structure (12) and extends upwardly. An inner buckle convex edge (126) protruding downward is provided between the locking groove (123) and the access channel (121). The locking edge (112) is formed by the outer edge of the lock body (111) protruding upward. A second limiting angle b capable of being inserted and matched with the inner buckle convex edge (126) is formed between the locking edge (112) and the lock body (111). When the two assembly plates (1) are in a connected state, the locking edge (112) is inserted into the locking groove (123), and the inner buckle convex edge (126) is inserted into the second limiting angle b.

10. The convenient assembled foundation pit safety slope protection according to claim 9 is characterized in that: The entry and exit guiding inclined surface comprises an upper guiding inclined surface (12S1) formed on the upper edge (125) of the channel and a lower guiding inclined surface (12S2) formed on the lower edge (124) of the channel, wherein the upper guiding inclined surface (12S1) is parallel to the lower guiding inclined surface (12S2), and the locking groove structure (12) further comprises a translation channel (122) connecting the entry and exit channel (121) with the locking groove (123), wherein the translation channel (122) comprises an upper flat push surface (12S3) arranged on the upper inner buckle convex edge (126), and a lower flat push surface (12S4) located at the lower side and intersecting with the lower guiding inclined surface (12S2), wherein the upper The flat push surface (12S3) and the lower flat push surface (12S4) are parallel to the bottom support surface of the plate body (10); the lock body (111) protrudes downward to form a rotation fulcrum edge (113) for facilitating the rotation of the two assembly plates (1); the rotation fulcrum edge (113) has a first ridge bevel (11S1) and a second ridge bevel (11S2); when the lock structure (11) moves in the translation channel (122), the first ridge bevel (11S1) presses on the lower edge (124) of the channel; when the two assembly plates (1) are in a connected state, the second ridge bevel (11S2) abuts against the lower guide bevel (12S2).

11. The convenient assembled foundation pit safety slope protection according to claim 6 is characterized by: The surface where the entry and exit guide slope is located intersects with the bottom support surface of the plate body (10) to form an angle c, and the angle c is 20°-70°.

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