Modularized assembly type steel structure elevator shaft
By combining components such as L-shaped plates, positioning rods, guide rods, and screws, the problem of rapid assembly of modular prefabricated steel structure elevator shafts was solved, achieving efficient installation and improved structural strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO YUTONG ELEVATOR ENGINEERING CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-08
AI Technical Summary
Existing modular prefabricated steel structure elevator shafts require multiple bolts during the splicing process, which weakens the structural strength, makes installation cumbersome, and consumes a lot of manpower.
The upper and lower steel frames are quickly positioned and assembled by using components such as L-shaped plates, positioning rods, guide rods, guide plates, and screws. The upper and lower steel frames are clamped by the cooperation of guide rods, mounting blocks, and springs, and fixed by the cooperation of screws and screw cylinders.
It enables rapid splicing of the upper and lower steel frames, improving splicing efficiency, reducing labor costs, and enhancing structural strength.
Smart Images

Figure CN224213723U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of elevator shaft technology, specifically a modular prefabricated steel structure elevator shaft. Background Technology
[0002] With the acceleration of urbanization and the booming development of the construction industry, steel structure elevator shafts have been widely used in high-rise buildings and the installation of elevators in existing buildings due to their significant advantages such as high strength, light weight, short construction period and recyclability. In recent years, modular prefabrication technology, as a new type of building technology, has effectively reduced on-site wet operations and construction environment pollution with its factory prefabrication and rapid on-site assembly characteristics, and has greatly improved construction efficiency, gradually becoming an important development direction for the construction of steel structure elevator shafts.
[0003] However, in practical applications, existing modular prefabricated steel structure elevator shafts generally use multiple bolts to splice each module, which requires a large number of bolt holes to be reserved on the modules, weakening the structural strength of the modules. Moreover, the bolt installation process is cumbersome, requires multiple people to cooperate, and consumes a lot of time and labor costs. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a modular prefabricated steel structure elevator shaft, which effectively solves the problem of the inconvenience of quickly assembling modules.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular prefabricated steel structure elevator shaft, including an upper steel frame, a lower steel frame at the bottom of the upper steel frame, and a connecting mechanism between the upper steel frame and the lower steel frame;
[0006] The connecting mechanism includes an L-shaped plate located between the upper steel frame and the lower steel frame. Two side plates are symmetrically fixedly connected to the outer side of the L-shaped plate. Positioning rods are fixedly connected to the outer side of each of the two side plates. Two positioning blocks are symmetrically fixedly connected to the top of the lower steel frame. The upper steel frame is fitted onto the outer side of the two positioning blocks. Positioning holes are provided on the outer side of each of the two positioning blocks. Both positioning rods pass through the upper steel frame and are inserted into the two positioning holes respectively.
[0007] Preferably, an I-shaped block is fixedly connected to the L-shaped plate, and T-shaped grooves are provided on the outer sides of both the upper and lower steel frames, with the I-shaped block inserted into the two T-shaped grooves.
[0008] Preferably, two guide rods are symmetrically fixedly connected to the upper steel frame, and a guide plate is movably sleeved between the two guide rods. The guide plate is located at the top of the L-shaped plate, and two columns are symmetrically fixedly connected to the top of the L-shaped plate. The guide plate is sleeved on the outside of the two columns, and mounting blocks are fixedly sleeved on the outside of the two guide rods. Springs are fixedly connected between the bottom of the two mounting blocks and the top of the guide plate, and the two springs are respectively sleeved on the outside of the two guide rods.
[0009] Preferably, a screw is fixedly connected to the upper steel frame, a guide plate is located outside the screw, a screw cylinder is threaded onto the outside of the screw, and the screw cylinder abuts against the top of the guide plate.
[0010] Preferably, the top of the L-shaped plate is provided with a clearance groove, and the L-shaped plate is located outside the screw through the clearance groove.
[0011] Preferably, the top of the guide plate is symmetrically rotatably connected to two limiting shafts, and the top of each of the two mounting blocks is fixedly connected to a limiting ring, the inner diameter of which is equal to the outer diameter of the limiting shaft.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The positioning between the upper and lower steel frames can be achieved through the cooperation of L-shaped plates, I-shaped blocks, T-slots, positioning blocks, side plates and positioning rods. The L-shaped plates can be clamped through the cooperation of guide rods, mounting blocks, springs, guide plates and columns. The guide plates can be prevented from moving through the cooperation of screws and screw cylinders, thus facilitating the quick splicing of the upper and lower steel frames.
[0014] 2. The guide rod, mounting block, spring, guide plate, limiting shaft and limiting ring are coordinated to facilitate the fixing of the guide plate after it is raised, so as to facilitate the placement of the L-shaped plate between the upper steel frame and the lower steel frame. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the modular prefabricated steel structure elevator shaft of this utility model;
[0018] Figure 2 This is a schematic diagram of the connection structure between the upper and lower steel frames of this utility model;
[0019] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the L-shaped plate structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the guide rod structure of this utility model.
[0022] In the diagram: 1. Upper steel frame; 2. Connecting mechanism; 201. L-shaped plate; 202. Side plate; 203. Positioning rod; 204. Guide rod; 205. Screw barrel; 206. Screw; 207. Column; 208. Guide plate; 209. I-shaped block; 2010. Clearance groove; 2011. Limiting ring; 2012. Limiting shaft; 2013. Spring; 2014. Mounting block; 3. Lower steel frame; 4. Positioning block; 5. Positioning hole; 6. T-slot. Detailed Implementation
[0023] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] Example 1, by Figure 1 The present invention relates to a modular prefabricated steel structure elevator shaft, including an upper steel frame 1, a lower steel frame 3 at the bottom of the upper steel frame 1, and a connecting mechanism 2 between the upper steel frame 1 and the lower steel frame 3.
[0025] Specifically, by Figure 2-5The connecting mechanism 2 includes an L-shaped plate 201 located between the upper steel frame 1 and the lower steel frame 3. Two side plates 202 are symmetrically fixedly connected to the outer side of the L-shaped plate 201. Positioning rods 203 are fixedly connected to the outer side of each side plate 202. Two positioning blocks 4 are symmetrically fixedly connected to the top of the lower steel frame 3. The upper steel frame 1 is fitted onto the outer side of the two positioning blocks 4. Positioning holes 5 are provided on the outer side of each positioning block 4. The two positioning rods 203 pass through the upper steel frame 1 and are inserted into the two positioning holes 5 respectively. I-shaped blocks 209 are fixedly connected to the L-shaped plate 201. T-slots 6 are provided on the outer side of both the upper steel frame 1 and the lower steel frame 3. The I-shaped blocks 209 are inserted into the two T-slots 6. Two guide rods 204 are symmetrically fixedly connected to the upper steel frame 1. A guide plate 208 is movably sleeved between the two guide rods 204. The guide plate 208 is located on the top of the L-shaped plate 201. Two uprights 207 are symmetrically fixedly connected to the top of the L-shaped plate 201. The guide plate 208 is sleeved on the outside of the two columns 207. Mounting blocks 2014 are fixedly sleeved on the outside of each of the two guide rods 204. Springs 2013 are fixedly connected between the bottom of each mounting block 2014 and the top of the guide plate 208. The two springs 2013 are respectively sleeved on the outside of the two guide rods 204. A screw 206 is fixedly connected to the upper steel frame 1. The guide plate 208 is located outside the screw 206 and is not in contact with the screw 206. To prevent wear on the threads on the outside of the screw 206, a screw cylinder 205 is fitted onto the threads on the outside of the screw 206. The screw cylinder 205 has multiple auxiliary handles on its outside to facilitate rotation. The screw cylinder 205 abuts against the top of the guide plate 208. The top of the L-shaped plate 201 has a clearance groove 2010. The L-shaped plate 201 is located outside the screw 206 through the clearance groove 2010. The clearance groove 2010 can avoid contact with the screw 206.
[0026] In use, first place the upper steel frame 1 on top of the lower steel frame 3, so that the upper steel frame 1 fits on the outside of the two positioning blocks 4. Then slide the guide plate 208 upward along the two guide rods 204. At this time, both springs 2013 are compressed. Then place the L-shaped plate 201 between the upper steel frame 1 and the lower steel frame 3, so that the I-shaped block 209 is inserted into the two T-slots 6. At the same time, the two positioning rods 203 are inserted into the two positioning holes 5 respectively. Then release the guide plate 208. At this time, both springs 2013 are reset and drive the guide plate 208 to slide downward along the two guide rods 204, so that the guide plate 208 fits on the outside of the two columns 207 until it is located on the top of the L-shaped plate 201, thereby clamping the L-shaped plate 201. Then rotate the screw barrel 205 clockwise on the outside of the screw 206 until the screw barrel 205 abuts against the top of the guide plate 208 to limit the guide plate 208. Finally, the upper steel frame 1 and the lower steel frame 3 are quickly spliced.
[0027] Specifically, by Figure 5As shown, the top of the guide plate 208 is symmetrically rotatably connected to two limiting shafts 2012, and the top of each of the two mounting blocks 2014 is fixedly connected to a limiting ring 2011, the inner diameter of the limiting ring 2011 being equal to the outer diameter of the limiting shaft 2012.
[0028] In use, the guide plate 208 is first slid upward along the two guide rods 204. At this time, the two springs 2013 are compressed and drive the two limiting shafts 2012 to rise. When the guide plate 208 moves to the appropriate position, the two limiting shafts 2012 are rotated to the required position so that the two limiting shafts 2012 are inserted into the two limiting rings 2011 under the action of the elastic force of the two springs 2013, thereby fixing the guide plate 208 after it has moved. Finally, the L-shaped plate 201 can be placed between the upper steel frame 1 and the lower steel frame 3.
Claims
1. A modular prefabricated steel structure elevator shaft, comprising an upper steel frame (1), characterized in that: The bottom of the upper steel frame (1) is provided with a lower steel frame (3), and a connecting mechanism (2) is provided between the upper steel frame (1) and the lower steel frame (3). The connecting mechanism (2) includes an L-shaped plate (201) located between the upper steel frame (1) and the lower steel frame (3). Two side plates (202) are symmetrically fixedly connected to the outer side of the L-shaped plate (201). Positioning rods (203) are fixedly connected to the outer side of both side plates (202). Two positioning blocks (4) are symmetrically fixedly connected to the top of the lower steel frame (3). The upper steel frame (1) is sleeved on the outer side of the two positioning blocks (4). Positioning holes (5) are provided on the outer side of both positioning blocks (4). The two positioning rods (203) pass through the upper steel frame (1) and are inserted into the two positioning holes (5) respectively.
2. The modular prefabricated steel structure elevator shaft according to claim 1, characterized in that: The L-shaped plate (201) is fixedly connected with an I-shaped block (209). The outer sides of the upper steel frame (1) and the lower steel frame (3) are provided with T-shaped grooves (6), and the I-shaped block (209) is inserted into the two T-shaped grooves (6).
3. The modular prefabricated steel structure elevator shaft according to claim 1, characterized in that: Two guide rods (204) are symmetrically fixedly connected to the upper steel frame (1). A guide plate (208) is movably sleeved between the two guide rods (204). The guide plate (208) is located at the top of the L-shaped plate (201). Two columns (207) are symmetrically fixedly connected to the top of the L-shaped plate (201). The guide plate (208) is sleeved on the outside of the two columns (207). Mounting blocks (2014) are fixedly sleeved on the outside of the two guide rods (204). Springs (2013) are fixedly connected between the bottom of the two mounting blocks (2014) and the top of the guide plate (208). The two springs (2013) are respectively sleeved on the outside of the two guide rods (204).
4. The modular prefabricated steel structure elevator shaft according to claim 1, characterized in that: A screw (206) is fixedly connected to the upper steel frame (1), and a guide plate (208) is located on the outside of the screw (206). A screw cylinder (205) is threaded onto the outside of the screw (206), and the screw cylinder (205) abuts against the top of the guide plate (208).
5. A modular prefabricated steel structure elevator shaft according to claim 1, characterized in that: The top of the L-shaped plate (201) is provided with a relief groove (2010), and the L-shaped plate (201) is located outside the screw (206) through the relief groove (2010).
6. A modular prefabricated steel structure elevator shaft according to claim 3, characterized in that: The top of the guide plate (208) is symmetrically rotatably connected to two limiting shafts (2012), and the tops of the two mounting blocks (2014) are fixedly connected to limiting rings (2011). The inner diameter of the limiting rings (2011) is equal to the outer diameter of the limiting shafts (2012).