Building construction foundation pit guardrail
Patent Information
- Application Number
- CN202521942904.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-10
AI Technical Summary
[0003]本实用新型的目的在于至少解决现有技术中存在的技术问题之一，提供一种建筑施工基坑护栏，能够解决结构不稳定的问题
1、该建筑施工基坑护栏，安全防护、灵活扩展和耐用性等多个维度，在结构稳定性方面，立杆作为核心支撑构件，与左杆、右杆共同构成稳固框架，底部的尖端通过锥形结构特性增强护栏与地面的锚固力，有效防止护栏倾倒，而立杆下方的法兰盘借助螺栓孔与地面固定件刚性连接，进一步避免施工中护栏移位，两者结合大幅提升了整体抗倾覆能力，横向框架中，下横杆、上横杆和扶手水平布置并与立杆、左杆、右杆固定连接，配合扶手和下横杆另一侧的斜杆形成三角形稳定结构，显著增强横杆与立杆的连接强度，提升框架抗变形能力，减少护栏受力后的形变。
Smart Images
Figure CN224885218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guardrail technology, and in particular to a guardrail for a construction pit. Background Technology
[0002] In the construction industry, the foundation pit is an important temporary work area, and the reliability of its surrounding protective facilities is directly related to the life safety of construction workers and the smooth progress of the project. Traditional foundation pit guardrail solutions have many defects that cannot be ignored in practical applications, posing significant hidden dangers to construction safety and efficiency. In terms of structural stability, the traditional guardrail fixing method is simple in design, with insufficient connection strength to the ground and a lack of effective anchoring measures. As a result, when the guardrail is subjected to external impact or natural environmental influences, it is very easy for it to shift, tilt, or even collapse, failing to form a continuous and reliable protective barrier. In severe cases, it may lead to safety accidents. In terms of protective performance, the protective structure of traditional guardrails often has insufficient sealing. Gaps or gaps are easy to appear on the protective surface, making it difficult to effectively prevent people from accidentally falling or objects from falling into the foundation pit. At the same time, the overall rigidity of the frame is weak, and it is easy to deform under stress, further reducing the protective capacity and bringing continuous safety risks to the construction area. In terms of adaptability and scalability, traditional guardrails have relatively fixed connection methods, making it impossible to flexibly adjust the installation angle according to the actual direction of the pit edge. When faced with irregular pit shapes, the installation process is complex and cumbersome, which not only makes it difficult to ensure the continuous closure of the guardrail, but also significantly increases construction time and labor costs, reducing construction efficiency. The lack of nighttime warning function is another prominent problem with traditional guardrails. Due to the lack of effective light reflection or warning measures, construction workers cannot detect the specific location of the guardrail in time at night or in environments with insufficient lighting, which can easily lead to accidents such as collisions and tripping, posing a serious threat to nighttime construction safety. The connection strength of the various components of traditional guardrails is insufficient. During long-term use, they are prone to loosening and component damage due to vibration, wear and other factors, requiring frequent repairs or replacements. This not only increases the cost and workload of later maintenance, but may also cause temporary failure of the protective function due to untimely repairs, affecting the normal construction progress. The combination of these defects makes traditional pit guardrails unable to meet the safety, efficiency and flexibility protection requirements of modern construction, becoming a major bottleneck restricting the improvement of construction safety management. Utility Model Content
[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a construction pit guardrail that can solve the problem of structural instability.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a construction pit guardrail, comprising uprights, a left pole on the left side and a right pole on the right side, the uprights, left pole and right pole being placed vertically and each having a pointed tip fixedly installed at its bottom, the axis of the pointed tip coinciding with the axis of each pole; four sleeves are fitted onto the left and right poles, the inner wall of the sleeves fitting against the outer wall of the poles and being circumferentially rotatable, a tenon is fixed on the left pole sleeve and a mortise is fixed on the right pole sleeve, the tenons and mortises of adjacent guardrail modules being mortised and tenoned together; steel mesh is fixed on the uprights, left pole and right pole; a flange and a lower crossbar are provided below the uprights, and a handrail is provided at the top of the uprights, left pole and right pole; an upper crossbar is provided above the lower crossbar; reflective strips are provided on the sides of the handrail, upper crossbar and lower crossbar; and diagonal bars are provided on the other side of the handrail and lower crossbar.
[0005] Preferably, the tip is a conical structure, coaxially fixed with the bottom of the upright, left and right poles, and the length of the tip is not less than twice the diameter of each pole.
[0006] Preferably, two sleeves are provided on the left rod and two on the right rod, with the left rod sleeves and right rod sleeves symmetrically distributed. The inner walls of the sleeves are smooth and have a clearance fit with the outer walls of the corresponding rods.
[0007] Preferably, the tenon is fixed perpendicularly to the sleeve on the left rod, the mortise is fixed perpendicularly to the sleeve on the right rod, and the cross-sectional dimensions of the tenon are adapted to the groove dimensions of the mortise.
[0008] Preferably, the steel mesh is fixed to the inner wall of the left pole on the left side, the inner wall of the right pole on the right side, and the outer wall of the upright on the inner side, with the upper edge attached to the bottom surface of the upper crossbar and the lower edge attached to the top surface of the lower crossbar.
[0009] Preferably, the flange is horizontally fixed below the upright, and at least two bolt holes are opened on the flange, which are evenly distributed along the circumference of the flange.
[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. The construction pit guardrail of this building possesses multiple dimensions such as safety protection, flexible expansion, and durability. In terms of structural stability, the uprights, as the core supporting components, together with the left and right bars, form a stable frame. The pointed bottom end enhances the anchoring force between the guardrail and the ground through the conical structure, effectively preventing the guardrail from tilting. The flange below the uprights is rigidly connected to the ground fixing parts through bolt holes, further preventing the guardrail from shifting during construction. The combination of these two aspects significantly improves the overall anti-overturning capacity. In the horizontal frame, the lower horizontal bar, upper horizontal bar, and handrail are arranged horizontally and fixedly connected to the uprights, left and right bars. Together with the handrail and the diagonal bar on the other side of the lower horizontal bar, they form a triangular stable structure, significantly enhancing the connection strength between the horizontal bar and the upright, improving the frame's resistance to deformation, and reducing the deformation of the guardrail under stress.
[0011] 2. The construction pit guardrail of this building has a safety protection level. The steel mesh in the area enclosed by the uprights, left bar, and right bar forms a closed protective surface through edge fixation, which can effectively prevent people or objects from falling into the pit and directly improve the level of construction safety protection. At the same time, the reflective strips on the sides of the handrail, upper horizontal bar, and lower horizontal bar reflect light under illumination, which plays a clear warning role at night or in low-light environments, reminding construction workers to pay attention to the position of the guardrail and avoid accidental collisions.
[0012] 3. In terms of flexible expansion, the sleeves fitted on the left and right poles of this construction pit guardrail can rotate around the pole. The tenon on the left pole sleeve and the mortise on the right pole sleeve form a mortise and tenon connection structure. Rotating the sleeve can adjust the connection angle, realizing the rapid splicing of adjacent guardrail modules. It can flexibly adapt to different pit edge directions, greatly improving the convenience and adaptability of construction and installation. Overall, through the synergistic effect of various components, this guardrail shows significant advantages in ensuring construction safety, improving structural stability, and enhancing usage flexibility. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of a construction pit guardrail according to the present invention; Figure 2 This is a schematic diagram of a construction pit guardrail according to the present invention; Figure 3 This is a cross-sectional schematic diagram of a construction pit guardrail according to the present invention; Figure 4 This is a cross-sectional schematic diagram of a construction pit guardrail according to the present invention.
[0014] Attached reference numerals: 1. Upright pole; 2. Left pole; 3. Right pole; 4. Flange; 5. Point; 6. Lower crossbar; 7. Upper crossbar; 8. Tenon; 9. Sleeve; 10. Handrail; 11. Mortise; 12. Diagonal brace; 13. Steel mesh; 14. Bolt hole; 15. Reflective strip. Detailed Implementation
[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0018] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0019] Please see Figure 1-4 This utility model provides a technical solution: a construction pit guardrail, including a pole 1, a left pole 2 on the left side of the pole 1, and a right pole 3 on the right side of the pole 1. The pole 1, left pole 2, and right pole 3 are vertically placed and each has a tip 5 fixedly installed at the bottom. The axis of the tip 5 coincides with the axis of each pole. The left pole 2 and right pole 3 are provided with four sleeves 9 in pairs. The inner wall of the sleeve 9 fits against the outer wall of the left pole 2 and can rotate around the left pole 2. Two sleeves 9 are symmetrically fitted on the right pole 3. The connection relationship is the same as that of the left pole 2. The four sleeves 9 form two sets of symmetrical structures. The sleeves 9 on the left pole 2 are fixedly installed with tenons 8, and the sleeves 9 on the right pole 3 are fixedly installed with mortises 11. The tenons 8 and mortises 11 between two different guardrail modules can be connected by tenon and mortise. Steel mesh 13 is fixedly installed on the pole 1, left pole 2, and right pole 3. Upright pole 1, left pole 2, and right pole 3 are placed vertically. The axis of the fixed tip 5 at the bottom coincides with the axis of each pole. When inserted into the foundation, the structural characteristics of the tip 5 can enhance the anchoring force between the guardrail and the ground, preventing the guardrail from tilting. The flange 4 below upright pole 1 is connected to the ground fixing parts through bolt holes 14 and bolts, further improving the overall installation stability and preventing the guardrail from shifting during construction. The lower horizontal bar 6, upper horizontal bar 7, and handrail 10 are arranged horizontally and fixedly connected to upright pole 1, left pole 2, and right pole 3 to form a frame structure, enhancing the overall rigidity of the guardrail. A flange 4 is fixedly installed below the upright 1. Bolt holes 14 are provided on the flange 4. A lower crossbar 6 is fixedly installed below the upright 1. A handrail 10 is fixedly installed on the top of the upright 1, the left pole 2 and the right pole 3. An upper crossbar 7 is provided above the lower crossbar 6. Reflective strips 15 are fixedly installed on the side of the handrail 10, the upper crossbar 7 and the lower crossbar 6 arranged horizontally. A diagonal bar 12 is fixedly installed on the other side of the handrail 10 and the lower crossbar 6. The sleeves 9 fitted on the left rod 2 and the right rod 3 can rotate around the circumference of the rod. The tenon 8 on the sleeve 9 of the left rod 2 and the mortise 11 on the sleeve 9 of the right rod 3 form a tenon-and-mortise connection structure. When it is necessary to extend the length of the guardrail, the sleeve 9 is rotated to adjust the orientation of the tenon 8 and the mortise 11, so that the tenon 8 of the adjacent guardrail module can be inserted into the mortise 11, realizing quick splicing. Moreover, the rotational characteristics of the sleeve 9 make it easy to adjust the connection angle and adapt to different pit edge orientations. Steel mesh 13 is vertically arranged in the area enclosed by upright 1, left pole 2, and right pole 3. Its left edge is fixedly connected to the inner wall of left pole 2, its right edge is fixedly connected to the corresponding position of the inner wall of right pole 3, and its inner edge is fixedly connected to the outer wall of upright 1. The upper edge of steel mesh 13 is attached to the bottom surface of upper horizontal bar 7, and the lower edge is attached to the top surface of lower horizontal bar 6. The steel mesh 13 enclosed by the uprights 1, left pole 2, and right pole 3 forms a closed protective surface by being fixedly connected to each pole through the edges, preventing people or objects from falling into the foundation pit. The reflective strips 15 on the sides of the handrail 10, upper horizontal bar 7, and lower horizontal bar 6 reflect light under illumination, serving as a nighttime warning to remind construction workers to pay attention to the position of the guardrail. The diagonal bars 12 on the other side of the handrail 10 and lower horizontal bar 6 enhance the connection strength between the horizontal bar and the upright, improving the frame's resistance to deformation.
[0020] Working principle: During installation, the upright 1, left pole 2, and right pole 3 are inserted into the foundation through the bottom tip 5 and fixed and reinforced using the bolt holes 14 of the flange 4. By rotating the sleeves 9 on the left pole 2 and right pole 3, the tenons 8 of adjacent guardrail modules are mortised and tenoned with the mortises 11, completing the guardrail module splicing. In the frame structure, the lower horizontal bar 6, upper horizontal bar 7, and handrail 10 enhance stability, the diagonal bar 12 strengthens the connection, the steel mesh 13 forms a closed protection, and the reflective strip 15 provides nighttime warning. The whole structure achieves the safety protection function of the pit edge through the coordinated support and fixation, module connection, and protective warning structure. The aforementioned construction pit guardrail device offers multiple benefits in terms of structural stability, safety protection, flexible expansion, and durability. In terms of structural stability, the upright 1, as the core supporting component, together with the left pole 2 and right pole 3, forms a stable frame. The pointed end 5 at the bottom enhances the anchoring force between the guardrail and the ground through its conical structure, effectively preventing the guardrail from tipping over. The flange 4 below the upright 1 is rigidly connected to the ground fixing component through the bolt hole 14, further preventing the guardrail from shifting during construction. The combination of the two significantly improves the overall anti-overturning capacity. In the transverse frame, the lower horizontal bar 6, upper horizontal bar 7, and handrail 10 are arranged horizontally and fixedly connected to the upright 1, left pole 2, and right pole 3. Together with the handrail 10 and the diagonal bar 12 on the other side of the lower horizontal bar 6, they form a triangular stable structure, which significantly enhances the connection strength between the horizontal bar and the upright, improves the frame's resistance to deformation, and reduces the deformation of the guardrail after being subjected to force. In terms of safety protection, the steel mesh 13 within the area enclosed by the uprights 1, left pole 2, and right pole 3 forms a closed protective surface through edge fixing, which can effectively prevent people or objects from falling into the foundation pit, directly improving the level of construction safety protection. At the same time, the reflective strips 15 on the sides of the handrail 10, upper horizontal bar 7, and lower horizontal bar 6 reflect light under illumination, playing a clear warning role at night or in environments with insufficient light, reminding construction workers to pay attention to the position of the guardrail and avoid accidental collisions. In terms of flexible expansion, the sleeves 9 fitted on the left rod 2 and the right rod 3 can rotate around the circumference of the rod. The tenon 8 on the sleeve 9 of the left rod 2 and the mortise 11 on the sleeve 9 of the right rod 3 form a tenon and mortise connection structure. Rotating the sleeve 9 can adjust the connection angle, realizing the rapid splicing of adjacent guardrail modules. It can flexibly adapt to different pit edge directions, greatly improving the convenience and adaptability of construction and installation. Overall, the guardrail shows significant advantages in ensuring construction safety, improving structural stability, and enhancing the flexibility of use through the synergistic effect of various components.
[0021] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A construction pit guardrail, comprising uprights (1), characterized in that: The upright (1) has a left pole (2) on the left side and a right pole (3) on the right side. The upright (1), left pole (2) and right pole (3) are placed vertically and each has a fixed tip (5) at the bottom. The axis of the tip (5) coincides with the axis of each pole. The left pole (2) and right pole (3) are fitted with four sleeves (9). The inner wall of the sleeve (9) fits against the outer wall of the pole and can rotate circumferentially. A tenon (8) is fixed on the sleeve (9) of the left pole (2), and a mortise (11) is fixed on the sleeve (9) of the right pole (3). The tenons (8) and mortises (11) of adjacent guardrail modules can be connected by tenon and mortise. Steel mesh (13) is fixed on the upright (1), left pole (2) and right pole (3). A flange (4) and a lower crossbar (6) are provided below the upright (1), and a handrail (10) is provided at the top. The top of the upright (1), left bar (2) and right bar (3) are provided with handrails (10), and an upper crossbar (7) is provided above the lower crossbar (6). Reflective strips (15) are provided on the sides of the handrail (10), upper crossbar (7) and lower crossbar (6), and diagonal bars (12) are provided on the other side of the handrail (10) and lower crossbar (6).
2. The construction pit guardrail according to claim 1, characterized in that: The tip (5) is a conical structure and is fixed coaxially with the bottom of the upright (1), left rod (2) and right rod (3). The length of the tip (5) is not less than twice the diameter of each rod.
3. A construction pit guardrail according to claim 2, characterized in that: Two sleeves (9) are provided on the left rod (2) and the right rod (3). The sleeves (9) on the left rod (2) and the right rod (3) are symmetrically distributed. The inner wall of the sleeve (9) is smooth and has a clearance fit with the outer wall of the corresponding rod.
4. A construction pit guardrail according to claim 3, characterized in that: The tenon (8) is vertically fixed to the sleeve (9) on the left rod (2), and the mortise (11) is vertically fixed to the sleeve (9) on the right rod (3). The cross-sectional dimensions of the tenon (8) are adapted to the groove dimensions of the mortise (11).
5. A construction pit guardrail according to claim 4, characterized in that: The steel mesh (13) is fixed to the inner wall of the left rod (2) on the left side, to the inner wall of the right rod (3) on the right side, and to the outer wall of the upright (1) on the inner side. The upper edge is attached to the bottom surface of the upper horizontal bar (7) and the lower edge is attached to the top surface of the lower horizontal bar (6).
6. A construction pit guardrail according to claim 5, characterized in that: The flange (4) is horizontally fixed below the upright (1), and at least two bolt holes (14) are opened on the flange (4), with the bolt holes (14) evenly distributed around the flange (4).