A pit guard structure
By setting through holes and connecting plates in the elevator pit guardrail structure and using bolts, rapid installation and enhanced rigidity are achieved, solving the problem of cumbersome installation in narrow spaces, improving installation efficiency and connection firmness, and making it suitable for operations in narrow spaces such as elevator pits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUZHOU NANXUN YINGKAI ELEVATOR PARTS FACTORY
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-24
Smart Images

Figure CN224549686U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator guardrail installation technology, and in particular to a pit guardrail structure. Background Technology
[0002] Existing technology, such as the counterweight protective net disclosed in patent number CN 220618020 U, includes a pair of auxiliary guide rails and several protective net bodies arranged vertically. Each protective net body has symmetrically arranged splicing blocks at its upper and lower ends, and adjacent protective net bodies are spliced together through these splicing blocks. The inner wall of each protective net body has several through holes; the middle of each splicing block has several reinforcing plates, and both ends have symmetrically arranged splicing grooves. This utility model uses a protective net body made of modified PVC material. The protective net body has several through holes inside, resulting in better rigidity and a smooth, aesthetically pleasing surface. Each protective net body requires only two L-shaped supports on one side, and the splicing points of two protective net bodies are further reduced by sharing splicing blocks, further reducing the number of supports, thereby further reducing costs and saving installation time. It can adapt to auxiliary guide rails with different spacing, ensuring the strength of the protective net body during use.
[0003] In the actual installation process, the above-mentioned device requires splicing two protective net bodies together using splicing blocks, and then fixing them to the guide rail with bolts and brackets. For narrow spaces such as elevator pits, the installation is quite cumbersome. Therefore, there is an urgent need for a pit guardrail structure that is easy and quick to install, has a firm and reliable connection, and is especially suitable for narrow pit working environments, so as to significantly improve installation efficiency, reduce installation costs, and ensure the stability of safety protection. Summary of the Invention
[0004] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a pit guardrail structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] Design a pit guardrail structure, including guide rails and a protective net located between the guide rails, and also including...
[0007] A first connecting plate is fixedly connected to the protective net via a first fixing component. The first fixing component includes a through hole penetrating the protective net and a first fixing part that cooperates with the through hole to fix the first connecting plate to an adjacent protective net.
[0008] The second connecting plate is integrally connected to the first connecting plate and is fixed to the guide rail by the second fixing component.
[0009] Furthermore, the first fixing part includes a first bolt passing through the first connecting plate and the through hole, and a first nut screwed onto the first bolt.
[0010] Furthermore, the second fixing component includes two first waist holes provided on the second connecting plate, a second bolt and a second nut that cooperate with the first waist holes to fix the pressure guide plate on the second connecting plate, and one end of the pressure guide plate abuts against the guide rail.
[0011] Furthermore, the protective net includes two reinforcing plates, a baffle connected to the reinforcing plates to form a cavity, and a first support strip and a second support strip spaced apart within the cavity.
[0012] Furthermore, the first support bar and the second support bar are tilted in opposite directions.
[0013] Furthermore, the through hole is provided on the reinforcing plate.
[0014] Furthermore, it also includes a side guardrail plate, a second waist hole penetrating the side guardrail plate, a third bolt and a third nut for fixing the side guardrail plate to the second connecting plate through the second waist hole, a third connecting plate connected to the side guardrail plate, and a fourth bolt for fixing the third connecting plate to the wall.
[0015] The pit guardrail structure proposed in this utility model has the following advantages:
[0016] This utility model simplifies the installation process, reduces installation time, and improves the installation efficiency of protective nets by setting through holes in the protective net and utilizing the cooperation between the first fixing part and the through holes to achieve rapid installation and connection of adjacent protective nets. It is suitable for operation in narrow spaces such as elevator pits. The integrated connection structure of the first connecting plate and the second connecting plate enhances rigidity and enables rapid positioning of the protective net and the guide rail. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is an enlarged schematic diagram of point A of the present invention;
[0019] Figure 3 This is an enlarged schematic diagram of the present invention (B).
[0020] Figure 4 This is a schematic diagram of the second connecting plate;
[0021] Figure 5 This is a schematic diagram of the protective netting; Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Example, refer to Figure 1-5 A pit guardrail structure includes guide rails 1 and a protective net 2 located between the guide rails 1, and also includes
[0024] The first connecting plate 3 is fixedly connected to the protective net 2 through the first fixing component 4. The first fixing component 4 includes a through hole 401 penetrating the protective net 2 and a first fixing part 402 that cooperates with the through hole 401 to fix the first connecting plate 3 to the adjacent protective net 2. The first fixing part 402 fixes the first connecting plate 3 to the adjacent protective net 2, thereby realizing the quick installation and connection of the adjacent protective net 2.
[0025] The second connecting plate 5 is integrally connected to the first connecting plate 3 and is fixed to the guide rail 1 by the second fixing component 6. The second connecting plate 5 is locked to the guide rail 1 by the second fixing component 6 to form an overall support frame.
[0026] This utility model achieves rapid installation and connection of adjacent protective nets 2 by setting through holes 401 on the protective net 2 and utilizing the cooperation of the first fixing part 402 and the through holes 401, simplifying the installation steps, reducing installation time, and improving the installation efficiency of the protective net 2. It is suitable for operations in narrow spaces such as elevator pits. The integrated connection structure of the first connecting plate 3 and the second connecting plate 5 enhances rigidity and simultaneously achieves rapid positioning of the protective net 2 and the guide rail 1.
[0027] In an optional embodiment of this utility model, the first fixing part 402 includes a first bolt 4021 passing through the first connecting plate 3 and the through hole 401, and a first nut 4022 screwed to the first bolt 4021. The first bolt 4021 passes through the first connecting plate 3 and the through hole 401. After the first nut 4022 is tightened, a mechanical pressing fix is formed, which provides high tensile and shear strength, and facilitates later maintenance or replacement of the protective net.
[0028] In an optional embodiment of this utility model, the second fixing component 6 includes two first waist holes 601 provided on the second connecting plate 5, and a second bolt 603 and a second nut 604 that cooperate with the first waist holes 601 to fix the pressure guide plate 602 on the second connecting plate 5. One end of the pressure guide plate 602 abuts against the guide rail 1. The second bolt 603 passes through the first waist hole 601 and the pressure guide plate 602. After adjusting the position, the second nut 604 is locked. The pressure guide plate 602 presses and fixes the guide rail 1 by abutting force. The design of the first waist hole 601 allows for fine adjustment of the position of the second bolt 603, thereby adapting to guide rails 1 of different sizes.
[0029] In an optional embodiment of this utility model, the protective net 2 includes two reinforcing plates 201, a baffle 203 connected to the reinforcing plates 201 to form a cavity 202, and a first support strip 204 and a second support strip 205 spaced apart within the cavity 202. The reinforcing plates 201 provide edge strength, the baffle 203 forms a protective surface, and the first support strip 204 and the second support strip 205 inside reinforce the cavity structure. The cavity structure absorbs impact energy and prevents deformation. At the same time, the hollow design inside the cavity reduces weight and lowers cost.
[0030] In an optional embodiment of this utility model, the first support bar 204 and the second support bar 205 are inclined in opposite directions. The first support bar 204 and the second support bar 205, which are inclined in opposite directions, form a mesh truss structure, which evenly distributes the load, resists external forces in multiple directions, and reduces vibration.
[0031] In an optional embodiment of this utility model, the through hole 401 is provided on the reinforcing plate 201. The hole is made in the thick area of the reinforcing plate 201 to avoid weakening the weak parts of the protective net 2. The reinforcing plate 201 has a high load-bearing capacity and is not easy to tear when the bolts are tightened, thus reducing fatigue damage at the connection.
[0032] In an optional embodiment of this utility model, it further includes a side guardrail 7, a second waist hole 8 penetrating the side guardrail 7, a third bolt 9 and a third nut 10 fixing the side guardrail 7 to the second connecting plate 5 through the second waist hole 8, a third connecting plate 11 connected to the side guardrail 7, and a fourth bolt 12 for fixing the third connecting plate 11 to the wall. The second waist hole 8 adjusts the position of the side guardrail 7, and the third connecting plate 11 transmits lateral force to the wall, thereby improving the guardrail's resistance to tipping.
[0033] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent 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, and therefore should not be construed as a limitation on this patent application.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0035] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.
[0036] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
Claims
1. A pit guardrail structure, comprising guide rails (1) and a protective net (2) located between the guide rails (1), characterized in that: Also includes The first connecting plate (3) is fixedly connected to the protective net (2) by the first fixing component (4), wherein the first fixing component (4) includes a through hole (401) penetrating the protective net (2) and a first fixing part (402) that cooperates with the through hole (401) to fix the first connecting plate (3) on the adjacent protective net (2); The second connecting plate (5) is integrally connected with the first connecting plate (3) and fixed on the guide rail (1) by the second fixing component (6).
2. The pit guardrail structure according to claim 1, characterized in that: The first fixing part (402) includes a first bolt (4021) passing through the first connecting plate (3) and the through hole (401), and a first nut (4022) screwed to the first bolt (4021).
3. The pit guardrail structure according to claim 1, characterized in that: The second fixing component (6) includes two first waist holes (601) provided on the second connecting plate (5), and a second bolt (603) and a second nut (604) that cooperate with the first waist holes (601) to fix the pressure guide plate (602) on the second connecting plate (5), with one end of the pressure guide plate (602) abutting against the guide rail (1).
4. The pit guardrail structure according to claim 1, characterized in that: The protective net (2) includes two reinforcing plates (201), a baffle (203) connected to the reinforcing plates (201) to form a cavity (202), and a first support bar (204) and a second support bar (205) spaced apart within the cavity (202).
5. The pit guardrail structure according to claim 4, characterized in that: The first support bar (204) and the second support bar (205) are inclined in opposite directions.
6. The pit guardrail structure according to claim 4, characterized in that: The through hole (401) is provided on the reinforcing plate (201).
7. The pit guardrail structure according to claim 1, characterized in that: It also includes a side guardrail (7), a second waist hole (8) through the side guardrail (7), a third bolt (9) and a third nut (10) for fixing the side guardrail (7) to the second connecting plate (5) through the second waist hole (8), a third connecting plate (11) connected to the side guardrail (7), and a fourth bolt (12) for fixing the third connecting plate (11) to the wall.