Foundation pit edge protection device for building construction

Abstract

The utility model relates to the technical field of foundation pit edge protection devices for building construction, in particular to a foundation pit edge protection device for building construction. A guardrail is arranged on the side portion of a stand column, a guardrail connecting piece is fixed to the side surface of the guardrail, a tooth block is fixed to the surface of the outer side of the guardrail connecting piece, a guardrail waist groove is formed in the front surface of the guardrail connecting piece, and a lower supporting plate is fixed to the lower end of an upper supporting plate. A first rotary disc and a second rotary disc are movably arranged between the upper supporting plate and the lower supporting plate in a sleeved mode, stand column connecting pieces are fixed to the side surfaces of the first rotary disc and the second rotary disc, and stand column waist grooves are formed in the surfaces of the stand column connecting pieces. And the gear cannot rotate, so that the stand column connecting pieces cannot rotate, the stability of fixed connection of the two sets of connecting pieces is guaranteed, and convenient direction changing during construction of the protective fence is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of a foundation pit edge protection device for building construction, in particular to a foundation pit edge protection device for building construction. Background Art

[0002] The foundation pit is a pit excavated at the foundation design location according to the base elevation and foundation plane dimensions.

[0003] In the prior art, in order to facilitate construction and provide sufficient space, it is usually necessary to dig a foundation pit before construction. In order to protect the isolation and safety of the workers inside the foundation pit and the people outside the construction, it is necessary to build protective measures on the edge of the foundation pit. Most of the protection is done by using guardrails. The guardrails are composed of columns and guardrails. The columns are fixed to the ground, and then the connecting plates welded on the columns are matched with the connecting plates welded on the guardrails, and the two sets of connecting plates are fixed by bolts or welding, so as to achieve the effect of stable protection of the guardrails.

[0004] However, the connecting pieces of the existing guardrails are all fixed vertically on the sides of the columns and guardrails to increase the contact area between the guardrails and the columns and improve the stability of the guardrails. However, the vertical fixation of the connecting pieces makes it impossible to adjust the angle between the columns and the guardrails. When constructing guardrails at the edges and corners of the foundation pit, special columns are required to achieve the direction change of the guardrail, which has limitations. Utility Model Content

[0005] The purpose of the utility model is to provide a foundation pit edge protection device for construction to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a foundation pit edge protection device for construction, the foundation pit edge protection device for construction comprising:

[0007] A column, wherein a guardrail is provided on the side of the column, a guardrail connecting piece is fixed to the side surface of the guardrail, a tooth block is fixed to the outer surface of the guardrail connecting piece, and a guardrail waist groove is opened on the front surface of the guardrail connecting piece;

[0008] An upper support plate, a lower support plate is fixed at the lower end of the upper support plate, a first turntable and a second turntable are movably sleeved between the upper support plate and the lower support plate, column connecting plates are fixed on the side surfaces of the first turntable and the second turntable, and column waist grooves are opened on the surface of the column connecting plates.

[0009] Preferably, the upper support plate and the lower support plate are fixed inside the column, a tooth groove is provided on the side surface of the upper support plate, and the upper support plate and the lower support plate are fixedly connected by a bearing.

[0010] Preferably, the first turntable and the second turntable are movably sleeved on the outer surface of the bearing, and the first turntable is located above the second turntable.

[0011] Preferably, a guide rod is fixed on the upper surface of the waist groove of the column, an annular block is fixed on the outer surface of the guide rod, and a gear is movably sleeved on the outer surface of the guide rod.

[0012] Preferably, a through hole is provided inside the gear, the through hole penetrates the upper and lower ends of the gear, and an annular groove is provided on the inner wall of the through hole.

[0013] Preferably, the annular block corresponds to the annular groove and is clamped in a movably connected manner. The diameter of the guide rod is the same as the diameter of the through hole. The diameter of the annular block is the same as the diameter of the annular groove. The diameter of the annular block is larger than the diameter of the guide rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Since the gears are locked with the tooth grooves, the rotation of the column connecting piece will drive the gears to rotate. The guardrail connecting piece is put on the outer surface of the column connecting piece, and the tooth block is matched with the gear and locked. When the guardrail connecting piece is completely put on the outer surface of the column connecting piece due to gravity, the guardrail waist groove corresponds to the column waist groove. At this time, the two sets of connecting pieces can be fixedly connected by bolts and nuts. At the same time, the tooth block limits the gear, so that the gear cannot rotate. The inability of the gear to rotate will cause the column connecting piece to be unable to rotate, thereby ensuring the stability of the fixed connection between the two sets of connecting pieces, thereby realizing convenient change of direction during guardrail construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-section and explosion of the connection component structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the guardrail connecting piece of the utility model;

[0019] Figure 4 This is an exploded schematic diagram of the structure of the column connecting piece assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the cross-section and explosion of the column connecting piece structure of the utility model.

[0021] In the figure: 1. column; 2. guardrail; 3. upper support plate; 4. column connecting plate; 5. guardrail connecting plate; 6. tooth block; 7. guardrail waist groove; 8. gear; 9. column waist groove; 10. first turntable; 11. second turntable; 12. tooth groove; 13. lower support plate; 14. through hole; 15. annular groove; 16. guide rod; 17. annular block. DETAILED DESCRIPTION

[0022] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 5 The utility model provides a technical solution: a foundation pit edge protection device for building construction.

[0024] In embodiment 1, a guardrail 2 is provided on the side of the column 1, and a guardrail connecting piece 5 is fixed to the side surface of the guardrail 2. A tooth block 6 is fixed to the outer surface of the guardrail connecting piece 5. Since the tooth block 6 limits the gear 8, the gear 8 cannot rotate. The inability of the gear 8 to rotate will cause the column connecting piece 4 to be unable to rotate, thereby ensuring the stability of the fixed connection between the two sets of connecting pieces. A guardrail waist groove 7 is provided on the front surface of the guardrail connecting piece 5.

[0025] A lower support plate 13 is fixed to the lower end of the upper support plate 3, and a first turntable 10 and a second turntable 11 are movably sleeved between the upper support plate 3 and the lower support plate 13. A column connecting piece 4 is fixed to the side surfaces of the first turntable 10 and the second turntable 11. The column connecting piece 4 can drive the first turntable 10 and the second turntable 11 to rotate around the bearing, thereby realizing the change of direction during the construction of the guardrail. A column waist groove 9 is opened on the surface of the column connecting piece 4.

[0026] On the basis of Example 1, in order to achieve convenient direction change during the construction of the guardrail, the upper support plate 3 and the lower support plate 13 are fixed inside the column 1, and a tooth groove 12 is provided on the side surface of the upper support plate 3. The upper support plate 3 and the lower support plate 13 are fixedly connected by bearings.

[0027] The first turntable 10 and the second turntable 11 are movably sleeved on the outer surface of the bearing, and the first turntable 10 is located above the second turntable 11 .

[0028] A guide rod 16 is fixed on the upper surface of the column waist groove 9, and an annular block 17 is fixed on the outer surface of the guide rod 16. A gear 8 is movably sleeved on the outer surface of the guide rod 16. The gear 8 serves as a transmission part and can limit the gear 8 to achieve the restriction of the column connecting piece 4.

[0029] A through hole 14 is formed inside the gear 8 , and the through hole 14 penetrates the upper and lower ends of the gear 8 . An annular groove 15 is formed on the inner wall of the through hole 14 .

[0030] The annular block 17 corresponds to and is clamped in the annular groove 15 and is movably connected. The diameter of the guide rod 16 is the same as the diameter of the through hole 14, and the diameter of the annular block 17 is the same as the diameter of the annular groove 15. The diameter of the annular block 17 is larger than the diameter of the guide rod 16, so the annular block 17 will not fall out of the annular groove 15, so the gear 8 will not be separated from the column connecting piece 4.

[0031] When the gear 8 is not in the same position as the gear 8, the gear 8 is not in the same position as the gear 8. When the gear 8 is not in the same position as the gear 8, the gear 8 is not in the same position as the gear 8. When the gear 8 is not in the same position as the gear 8, the gear 8 is not in the same position as the gear 8. When the gear 8 is not in the same position as the gear 8, the gear 8 is not in the same position as the gear 8.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit edge protection device for construction, characterized by: The foundation pit edge protection device for building construction includes: A column (1), a guardrail (2) is provided on the side of the column (1), a guardrail connecting piece (5) is fixed on the side surface of the guardrail (2), a tooth block (6) is fixed on the outer surface of the guardrail connecting piece (5), and a guardrail waist groove (7) is opened on the front surface of the guardrail connecting piece (5); An upper support plate (3) is fixed to the lower end of the upper support plate (3), a first turntable (10) and a second turntable (11) are movably sleeved between the upper support plate (3) and the lower support plate (13), a column connecting piece (4) is fixed to the side surfaces of the first turntable (10) and the second turntable (11), and a column waist groove (9) is opened on the surface of the column connecting piece (4).

2. A foundation pit edge protection device for construction according to claim 1, characterized in that: The upper support plate (3) and the lower support plate (13) are fixed inside the column (1); a tooth groove (12) is provided on the side surface of the upper support plate (3); and the upper support plate (3) and the lower support plate (13) are fixedly connected via a bearing.

3. A foundation pit edge protection device for construction according to claim 2, characterized in that: The first rotating disk (10) and the second rotating disk (11) are movably sleeved on the outer surface of the bearing, and the first rotating disk (10) is located above the second rotating disk (11).

4. A foundation pit edge protection device for construction according to claim 3, characterized in that: A guide rod (16) is fixed on the upper side surface of the column waist groove (9), an annular block (17) is fixed on the outer surface of the guide rod (16), and a gear (8) is movably sleeved on the outer surface of the guide rod (16).

5. The foundation pit edge protection device for construction according to claim 4, characterized in that: A through hole (14) is provided inside the gear (8), and the through hole (14) penetrates the upper and lower ends of the gear (8). An annular groove (15) is provided on the inner wall of the through hole (14).

6. The foundation pit edge protection device for construction according to claim 5, characterized in that: The annular block (17) corresponds to and is locked with the annular groove (15) and is movably connected. The diameter of the guide rod (16) is the same as the diameter of the through hole (14). The diameter of the annular block (17) is the same as the diameter of the annular groove (15). The diameter of the annular block (17) is larger than the diameter of the guide rod (16).

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