Supporting structure for elevator maintenance pit

Abstract

An elevator maintenance pit supporting structure comprises a middle frame and four hinge seats arranged on the middle frame, the four hinge seats are arranged on the two sides of the middle frame in a pairwise mode, the elevator maintenance pit supporting structure further comprises four telescopic frames correspondingly connected with the four hinge seats, one end of each telescopic frame is connected to the corresponding hinge seat through a vertical rotating shaft, and the other end of each telescopic frame is connected to the corresponding hinge seat through a vertical rotating shaft. One end of the telescopic frame is connected with a vertical rotating shaft, the other end of the telescopic frame is connected with a supporting leg and can turn over around the vertical rotating shaft, and the fixing assembly is used for fixing the telescopic frame on the middle frame when the telescopic frame turns over and is stacked on the middle frame. According to the utility model, the versatility is better, and maintenance personnel can carry the device into and out of a pit conveniently.

Description

Technical Field

[0001] The utility model relates to a support structure for elevator maintenance pit, belonging to the technical field of elevator maintenance. Background Art

[0002] When maintaining and installing an elevator in an elevator pit, a pit support structure is usually required to support the elevator.

[0003] For a maintenance unit, when designing a pit support device, issues such as its structural strength, versatility, and portability need to be comprehensively considered.

[0004] Chinese Patent with the authorization announcement number CN 221253505 U discloses an elevator maintenance pit support device, including a frame and an adjustment device. A connecting column is provided on the inner wall of the frame. A support column is fixedly connected to the lower surface of the connecting column, and a contact block is fixedly connected to the lower surface of the support column. The adjustment device is arranged on the surface of the frame. The adjustment device includes an adjustment groove and a connecting block. The connecting block is fixedly connected to the side surface of the frame, and the adjustment groove is opened on the side surface of the connecting column.

[0005] In this technical solution, the pit support device can support elevators of different sizes by setting the adjustment device, improving versatility. However, it can only be adjusted in one direction, either meeting the adjustment in the width direction of the elevator to adaptively support elevators of different widths, or meeting the adjustment in the depth direction of the elevator to adaptively support elevators of different depths. It is difficult to adaptively support an elevator with changes in both width and depth. Therefore, its versatility still needs to be improved.

[0006] This technical solution also has the problem that the overall structure is large and it is not conducive to moving it into and out of the pit. Content of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the present application provides a support structure for elevator maintenance pit, which has better versatility and is convenient for maintenance personnel to move it into and out of the pit.

[0008] A support structure for elevator maintenance pit includes an intermediate frame, four hinge seats arranged on the intermediate frame. The four hinge seats are arranged in pairs on both sides of the intermediate frame. It further includes four telescopic frames corresponding to and connected to the four hinge seats. One end of the telescopic frame is connected to the corresponding hinge seat through a vertical rotating shaft, and the other end is connected with a support foot and can flip around the vertical rotating shaft. It also includes a fixing component for fixing the telescopic frame on the intermediate frame when the telescopic frame flips and overlaps on the intermediate frame.

[0009] Preferably, the intermediate frame is a rod member.

[0010] Preferably, the fixing component includes fastening screws or binding ropes.

[0011] Preferably, the telescopic frame includes an adjusting sleeve for connecting with the hinge seat, a movable frame rod inserted into the adjusting sleeve through a telescopic rod, and further includes a plurality of fastening bolts passing through the telescopic rod and moving along with the telescopic rod. The adjusting sleeve is provided with an installation groove for the telescopic rod to move, and the fastening bolts are provided with fastening nuts for cooperating with the fastening nuts for fastening.

[0012] Preferably, the fastening bolt has a bolt head, and the intermediate frame is provided with a receiving groove for receiving the bolt head when the telescopic frame is stacked on the intermediate frame.

[0013] One end of the adjusting sleeve close to the hinge seat is provided with an arc surface coaxial with the vertical rotating shaft; the hinge seat is provided with a plurality of supporting parts on the side of the arc surface, and the supporting parts have arc supporting surfaces that are in rolling contact with the arc surface.

[0014] The hinge seat includes an upper end plate, a lower end plate, and a side connecting plate connecting the upper end plate and the lower end plate. The supporting parts are arranged between the upper end plate and the lower end plate and connect the upper end plate and the lower end plate.

[0015] Preferably, the number of the supporting parts is three.

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. The utility model has better versatility and is convenient for maintenance personnel to carry it into and out of the pit.

[0018] 2. In the utility model, one end of the adjusting sleeve close to the hinge seat is provided with an arc surface coaxial with the vertical rotating shaft, and the hinge seat is provided with a plurality of supporting parts on the side of the arc surface, which can reduce the radial extrusion of the telescopic frame on the vertical rotating shaft, prevent the vertical rotating shaft from being deformed by force, and thus improve the service life of the entire pit support structure. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the structure of the pit support structure in the front view perspective;

[0020] Figure 2 It is a schematic diagram of the structure of the pit support structure in the top view perspective;

[0021] Figure 3 It is a schematic diagram of the structure of the pit support structure when folded;

[0022] Figure 4 It is a partial connection schematic diagram of the movable frame rod and the adjusting sleeve;

[0023] Figure 5It is a connection diagram of the hinge seat and the adjusting sleeve;

[0024] Figure 6 It is Figure 5 exploded view of;

[0025] Figure 7 It is Figure 5 sectional view of. Specific implementation mode

[0026] Next, the present utility model will be further described in conjunction with the accompanying drawings through specific embodiments.

[0027] Embodiment:

[0028] As Figures 1-4 shown, an elevator maintenance pit support structure includes an intermediate frame 1 and four hinge seats 2 arranged on the intermediate frame 1. The four hinge seats 2 are arranged in pairs on both sides of the intermediate frame 1. The two hinge seats 2 on the same side are respectively arranged at both ends of the intermediate frame 1. It further includes four telescopic frames 3 correspondingly connected to the four hinge seats 2. One end of the telescopic frame 3 is connected to the corresponding hinge seat 2 through a vertical rotating shaft 4, and the other end is connected with a support foot 5 and can rotate around the vertical rotating shaft 4, that is, the telescopic frame 3 can rotate forward and backward and can also expand and contract left and right, so that the support foot 5 can be adjusted in the width direction or the depth direction or both the width and depth directions. Compared with the prior art, the adjustable orientation is wider and the versatility is better. The pit support structure also includes a fixing component 6. When the telescopic frame 3 rotates and overlaps on the intermediate frame 1, the telescopic frame 3 is fixed on the intermediate frame 1 through the fixing component 6, reducing the overall volume of the elevator maintenance pit support structure and facilitating the maintenance personnel to carry it into and out of the pit. In this embodiment, the fixing component 6 uses fastening screws, and the fastening screws are used to pass through the telescopic frame 3 and connect to the intermediate frame 1. In other implementation modes, the fixing component 6 can also use binding ropes to fix the telescopic frame 3 on the intermediate frame 1 by binding.

[0029] In this embodiment, the intermediate frame 1 adopts a rod, and the size of the rod should be appropriate to ensure its strength. The intermediate frame 1 in the form of a rod not only has a simple structure and is easy to manufacture, but also its overall weight can be controlled, further facilitating the maintenance personnel to carry it into and out of the pit.

[0030] The telescopic frame 3 specifically includes an adjusting sleeve 31 for connecting with the hinge seat 2, and a movable frame rod 33 inserted into the adjusting sleeve 31 through a telescopic rod 32. The adjusting sleeve 31 is connected with the hinge seat 2 through the above-mentioned vertical rotating shaft 4. The telescopic frame 3 further includes a plurality of fastening bolts 34 passing through the telescopic rod 32 and moving along with the telescopic rod 32. The adjusting sleeve 31 is provided with an installation groove 311 for the telescopic rod 32 to move. The fastening bolts 34 are provided with fastening nuts 35, aiming to cooperate with the fastening nuts 35 to fasten and fix the telescopic rod 32 in the adjusting sleeve 31, so as to fix the telescopic frame 3.

[0031] The fastening bolt 34 has a bolt head 341. The intermediate frame 1 is provided with a receiving groove 11 for receiving the bolt head 341 when the telescopic frame 3 is stacked on the intermediate frame 1, preventing the bolt head 341 from affecting the stacking of the telescopic frame 3 on the intermediate frame 1 due to protruding from the surface of the telescopic frame 3.

[0032] As Figures 5-7 shown, the hinge seat 2 includes an upper end plate 21, a lower end plate 22, and a side connecting plate 23 connecting the upper end plate 21 and the lower end plate 22. The side connecting plate 23 is connected to the intermediate frame 1 by welding or fastening.

[0033] As a component for installing the telescopic frame 3, the vertical rotating shaft 4 more or less bears the extrusion from the telescopic frame 3. To enhance the service life of the vertical rotating shaft 4, an arc surface 312 coaxial with the vertical rotating shaft 4 is provided at one end of the adjusting sleeve 31 close to the hinge seat 2. Between the upper end plate 21 and the lower end plate 22, a plurality of support portions 24 connecting the upper end plate 21 and the lower end plate 22 and located on the side of the arc surface 312 are further provided. The support portions 24 have arc support surfaces that rollingly contact the arc surface 312. The existence of the arc support surfaces can reduce the radial extrusion of the telescopic frame 3 on the vertical rotating shaft 4, prevent the vertical rotating shaft 4 from deforming under force, thereby improving the service life of the entire pit support structure. At the same time, the support portions 24 connect the upper end plate 21 and the lower end plate 22, structurally strengthen the upper end plate 21 and the lower end plate 22, improve the service life of the entire hinge seat 2, and thus improve the service life of the pit support structure. There are three support portions 24, two of which are located on both sides of the third support portion 24, and the centers of the three are arranged at an obtuse angle.

[0034] The above embodiments only describe the preferred implementation manners of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various variations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. An elevator maintenance pit support structure, characterized in that: The invention comprises an intermediate frame (1), four hinged seats (2) arranged on the intermediate frame (1), wherein the four hinged seats (2) are arranged in pairs on both sides of the intermediate frame (1), and four telescopic frames (3) correspondingly connected to the four hinged seats (2), wherein one end of the telescopic frame (3) is connected to the corresponding hinged seat (2) via a vertical rotating shaft (4), and the other end is connected to a supporting foot (5) and can be turned around the vertical rotating shaft (4), and further comprises a fixing component (6) for fixing the telescopic frame (3) on the intermediate frame (1) when the telescopic frame (3) is turned over and overlapped on the intermediate frame (1).

2. The elevator maintenance pit support structure according to claim 1, characterized in that: The intermediate frame (1) is a rod.

3. The elevator maintenance pit support structure according to claim 1, characterized in that: The fixing assembly (6) comprises a fastening screw or a binding rope.

4. The elevator maintenance pit support structure according to claim 1, characterized in that: The telescopic frame (3) comprises an adjustment sleeve (31) for connecting with the hinge seat (2), a movable frame rod (33) inserted into the adjustment sleeve (31) through a telescopic rod (32), and a plurality of fastening bolts (34) passing through the telescopic rod (32) and moving with the movement of the telescopic rod (32). The adjustment sleeve (31) is provided with a mounting groove (311) for the movement of the telescopic rod (32), and the fastening bolts (34) are provided with fastening nuts (35) for fastening in cooperation with the fastening nuts (35).

5. The elevator maintenance pit support structure according to claim 4, characterized in that: The fastening bolt (34) has a bolt head (341), and the intermediate frame (1) is provided with a receiving groove (11) for receiving the bolt head (341) when the telescopic frame (3) is stacked on the intermediate frame (1).

6. The elevator maintenance pit support structure according to claim 4, characterized in that: An arc surface (312) coaxial with the vertical rotation axis (4) is provided at one end of the adjustment sleeve (31) close to the hinge seat (2); a plurality of support portions (24) located on the side of the arc surface (312) are provided on the hinge seat (2); the support portions (24) have arc support surfaces in rolling contact with the arc surface (312).

7. The elevator maintenance pit support structure according to claim 6, characterized in that: The hinge seat (2) comprises an upper end plate (21), a lower end plate (22), and a side connecting plate (23) connecting the upper end plate (21) and the lower end plate (22); the support portion (24) is arranged between the upper end plate (21) and the lower end plate (22) and connects the upper end plate (21) and the lower end plate (22).

8. The elevator maintenance pit support structure according to claim 6, characterized in that: There are three supporting parts (24).

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