A steel frame structure for a service elevator

Abstract

This utility model provides a steel frame structure for a service elevator, including multiple angle steel sections and multiple crossbars. The angle steel sections have L-shaped right angles, with the right-angled sides of the L-shapes sequentially featuring concave grooves and bends. Several mounting holes are arranged in a straight line at the bottom of the concave grooves. The crossbars are connected laterally to the mounting holes of the angle steel sections by screws. By employing a novel design for the angle steel sections, with a protruding right-angle section, the problem of the inner angle of the 90° frame right-angle iron not being able to fit completely is solved. The concave grooves at the hole locations solve the problem of screws protruding. This structure of the angle steel greatly increases its strength.

Description

Technical Field

[0001] This utility model relates to the field of support frame technology, and in particular to a steel frame structure for a service elevator. Background Technology

[0002] With the increasing demand for small-scale cargo transportation, dumbwaiters (mini or small elevators used in supermarkets, restaurants, warehouses, and other similar settings to transport goods, meals, and other items) are becoming increasingly common. These elevators typically rely on steel frame structures for fixed installation, and their structural stability directly affects the elevator's safety and lifespan.

[0003] Existing dumbwaiter steel frames are mostly assembled using right-angled angle irons, as shown in Figures 4 and 5, and may also have the following technical defects:

[0004] (1) Poor fit: The inner angle of the right angle iron has a curvature, which makes it impossible to fit completely during assembly, resulting in installation difficulties. After installation, it is easy to deform due to uneven force.

[0005] (2) Insufficient safety: The screw head of the connecting screw protrudes from the surface of the angle iron (as shown in Figure 5), which is prone to collision with the elevator car, goods or operators, posing a safety hazard;

[0006] (3) Low structural strength: The single right-angled angle iron has limited load-bearing capacity and is prone to deformation or even damage after long-term load-bearing, affecting the service life of the elevator. Therefore, this utility model proposes a steel frame structure for a service elevator to at least partially solve the user pain points in the existing usage environment. Utility Model Content

[0007] In view of the above problems, this utility model proposes a steel frame structure for a service elevator that overcomes or at least partially solves the above problems. By optimizing the angle steel design, the fit, safety, and structural strength of the steel frame are improved.

[0008] To address the aforementioned problems, this utility model discloses a steel frame structure for a service elevator, comprising:

[0009] Multiple angle steel sections and multiple crossbeams;

[0010] The angle steel has an L-shaped right angle, and the right angle side of the L-shaped right angle is successively concave groove and bent.

[0011] The bottom of the concave groove has several mounting holes arranged in a straight line;

[0012] The crossbar is connected laterally to the mounting holes of the angle steel by screws.

[0013] Optionally, the two side walls of the concave groove are sloped structures.

[0014] Optionally, the angle steel is provided with four pieces;

[0015] Each of the angle steels is set vertically, and at least two crossbars are connected between each pair of angle steels using screws;

[0016] The screw head is located within the concave groove.

[0017] Optionally, the bend is a U-shaped structure.

[0018] Optionally, the width of the U-shaped opening in the U-shaped bend is not greater than the depth of the concave groove.

[0019] Optionally, the angle steel is made of iron or stainless steel.

[0020] The embodiments of this utility model have the following advantages:

[0021] The structure comprises multiple angle steel sections and multiple crossbars. The angle steel sections have L-shaped right angles, with the right-angled sides of the L-shape sequentially featuring concave grooves and bends. Several mounting holes are arranged in a straight line at the bottom of the concave grooves. The crossbars are connected laterally to the mounting holes of the angle steel sections via screws. This innovative design of the angle steel sections, with protruding right-angle sections, solves the problem of incomplete fit at the inner corners of 90° frame right-angle iron sections due to their curved shape. The concave grooves at the hole locations prevent screws from protruding. This structural design significantly increases the strength of the angle steel. Attached Figure Description

[0022] Figure 1 This is a first-view structural schematic diagram of the angle steel of a service elevator steel frame structure provided in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the angle steel structure of a service elevator steel frame according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the angled steel cross-section structure of a service elevator steel frame structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of a steel frame structure for a service elevator, based on the prior art of this utility model.

[0026] Figure 5 yes Figure 4 Enlarged view of section A in the middle.

[0027] The attached diagram is described below:

[0028] 100. Angle steel; 101. L-shaped right angle; 102. Concave groove; 103. Bending; 104. Mounting hole. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figures 1 to 2 As shown in some embodiments of this utility model, a steel frame structure for a service elevator includes: multiple angle steels 100 and multiple crossbeams; the angle steels 100 are provided with L-shaped right angles 101, and the right-angled sides of the L-shaped right angles 101 are successively concave grooves 102 and bends 103; the bottom of the concave grooves 102 has a plurality of mounting holes 104 arranged in a straight line; the crossbeams are connected laterally to the mounting holes 104 of the angle steels 100 by screws.

[0031] In this application, the L-shaped right angle 101 and the concave groove 102 structure solve the fitting problem caused by the inner angle curvature of traditional angle iron, resulting in a more stable installation. Furthermore, the concave groove 102 accommodates the screw head, preventing protrusion and collision. The bending structure 103 enhances the rigidity of the angle steel and improves its resistance to deformation. For example, when applied to the installation of warehouse elevator steel frames, the L-shaped right angle 101 and concave groove 102 structure of the angle steel allow the bottom of the concave groove 102 to completely fit against the frame, with the screw head hidden within the concave groove 102. When pedestrians and goods pass by the warehouse elevator steel frame, they will not be scratched by the screws.

[0032] The two side walls of the concave groove 102 are sloped. This sloped structure avoids the problem of limited space in the concave groove 102, which would be inconvenient for installation in a vertical structure. The sloped structure results in a larger opening and a relatively smaller bottom in the concave groove 102, providing ample operating space at the opening. This facilitates the insertion of tools (such as wrenches) during screw installation, reducing interference. Furthermore, the slope disperses stress, enhancing the structural strength of the concave groove 102. For example, when installing a crossbar, a wrench can be inserted along the slope of the concave groove 102 to easily tighten screws, avoiding tool jamming caused by vertical side walls.

[0033] Four angle steel sections 100 are provided; six, eight, or more can also be used depending on the width requirements. The specific configuration can be adjusted according to the application. Each angle steel section 100 is vertically installed, and at least two crossbeams are connected between each pair of angle steel sections 100 using screws; the screw heads are located within the concave grooves 102. The four angle steel sections form a stable frame, which, together with the multiple crossbeams, enhances the overall structural strength. The concealed screw heads completely solve the problem of protruding collisions, improving safety. In supermarket merchandise conveyor elevators, the frame formed by the four angle steel sections is connected by multiple crossbeams, resulting in a stable structure that prevents workers from being scratched by protruding screws when approaching the elevator.

[0034] The bend 103 is a U-shaped structure. The U-shaped structure disperses stress through deformation, significantly enhancing the bending and deformation resistance of the angle steel and extending its service life. For example, in warehouse elevators that bear heavy loads for extended periods, the U-shaped bend in the angle steel can disperse the stress generated by the weight of the loads, allowing for long-term use without significant deformation.

[0035] Furthermore, the width of the U-shaped bend 103 is no greater than the depth of the concave groove. This prevents the U-shaped bend from protruding from the surface of the angle steel, avoiding interference with the elevator car, goods, etc., and saving installation space. When the elevator car moves up and down, the U-shaped bend will not rub against the side wall of the car because its width does not exceed the depth of the concave groove.

[0036] The angle steel 100 is made of iron or stainless steel. Iron is relatively inexpensive and suitable for dry environments. Stainless steel angle steel 100, being rust-resistant, has better environmental adaptability and is suitable for humid environments (such as restaurants and kitchens). For example, stainless steel angle steel is used in kitchen food elevators, preventing rust even after long-term contact with moisture; iron angle steel is used in dry warehouse elevators to reduce costs.

[0037] This embodiment provides a steel frame structure for a service elevator, including four angle steel sections 100 and several crossbeams. The specific structure is as follows: The angle steel sections 100 are L-shaped right angles 101 with no curvature on the right angle sides to ensure a perfect fit during assembly; the right angle sides are provided with concave grooves 102 and U-shaped bends 103 in sequence; the two side walls of the concave grooves 102 are sloping structures, and multiple mounting holes 104 are distributed along a straight line at the bottom, for example, the hole diameter can be adapted to M8 screws; the U-shaped opening of the U-shaped bend 103 has a width of 3cm, and the depth of the concave groove 102 is 4cm, which meets the requirement that the width of the U-shaped opening is not greater than the depth of the concave groove; the material is stainless steel (suitable for humid environments such as restaurants), and if used in a dry storage environment, iron can also be used to reduce costs; the number of mounting holes 104 can be set according to the height of the steel frame, for example, 5-10 mounting holes are set per meter of angle steel, and the spacing between adjacent holes is 10-20cm. The crossbeams can be square tubes, round tubes, or angle steel, with through holes at both ends that fit the mounting holes 104 to ensure connection with the angle steel 100. Assembly method: Four angle steels 100 are erected to form four columns of a cuboid frame; every two adjacent angle steels 100 are connected by two crossbeams (square tube structure, length adapted to the distance between the two columns): the two ends of the crossbeams are fixed to the mounting holes 104 of the angle steel 100 with M8 screws, the screw heads are completely inside the concave grooves 102 and do not protrude from the surface of the angle steel; along the height of the frame, a set of crossbeams is set every 50cm (each set contains 4 crossbeams, connecting the four sides respectively) to ensure structural stability.

[0038] The steel frame structure of this embodiment can be applied to restaurant food conveying elevators. Its L-shaped right angles fit perfectly, making the installation more stable. The screws are concealed to avoid collisions with the food carts, and the U-shaped bends enhance the resistance to deformation, so that the structure can remain stable even after long-term use.

[0039] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0040] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0041] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0042] The above provides a detailed description of the steel frame structure for a service elevator provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A hoistway steel frame structure characterized by, include: Multiple angle steel sections (100) and multiple crossbars; The angle steel (100) is provided with an L-shaped right angle (101), and the right angle side of the L-shaped right angle (101) is successively a concave groove (102) and a bend (103). The bottom of the concave groove (102) has several mounting holes (104) arranged in a straight line. The crossbeam is connected laterally to the mounting hole (104) of the angle steel (100) by screws.

2. The hoistway steel frame structure according to claim 1, wherein The two side walls of the concave groove (102) are sloping structures.

3. The hoistway steel frame structure according to claim 2, wherein The angle steel (100) is provided in four sections; Each of the angle steels (100) is erected vertically, and at least two crossbars are connected between each pair of angle steels (100) by bolts; The screw head is located in the concave groove (102).

4. The debris elevator steel frame structure of claim 1, wherein, The bend (103) is a U-shaped structure.

5. The hoistway steel frame structure according to claim 4, wherein The U-shaped bend (103) has a U-shaped opening width that is not greater than the depth of the concave groove.

6. The debris elevator steel frame structure of claim 1, wherein The angle steel (100) is made of iron or stainless steel.

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