Assembled welding-free square tube car bottom platform

Abstract

The utility model discloses an assembly type welding-free square tube car bottom platform which comprises a car bottom square tube, a first connecting tube is installed on the left side of the car bottom square tube, a first side frame is installed on the left side of the first connecting tube, and a first limiting through hole is formed in the inner wall of the first side frame. The second connecting pipe is installed on the right side of the car bottom square pipe, a second side frame is installed on the right side of the second connecting pipe, second limiting through holes in one-to-one correspondence with the first limiting through holes are formed in the inner wall of the second side frame, and reinforcing rods are arranged in the second limiting through holes in a penetrating mode; and a stop block is integrally and fixedly mounted on the left side of the reinforcing rod. According to the drip irrigation tape for the water-saving irrigation device, the assembled square tube car platform is arranged, so that the defects caused by a welding mode are avoided, the square tube car platform is convenient to mount and dismount, the production efficiency of the square tube car platform is improved, and meanwhile, damaged parts are convenient to dismount and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car bottoms, in particular to an assembled non-welded square tube car bottom platform. Background Art

[0002] The elevator car bottom, generally referring to the bottom of the elevator shaft, is an important component of the elevator. It bears the weight of the elevator car and the passengers and items inside, so its load-bearing capacity and stability are very important. The elevator car bottom is usually made of a variety of materials, such as steel, alloys, etc., to ensure that it has sufficient strength and durability. At the same time, the design of the car bottom also needs to take into account the elevator's operating environment and conditions, such as humidity, temperature and other factors, to prevent corrosion and damage.

[0003] China Authorization Announcement No. CN211812928U discloses a composite car platform, an elevator car, and an elevator. The composite car platform includes a car platform plate and side frames mounted on the car platform plate. The car platform plate has a thickness of 1.5 mm and includes a flat plate at the bottom with a square surface. Two opposing sides of the four sides of the flat plate are bent upward to form hems. The side frames are mounted on the flat plate and arranged opposite each other. Each side frame is arranged side by side and abuts against the hems on the corresponding sides. The car platform is also equipped with a plurality of composite crossbeams connected between the two side frames. The composite crossbeams are a composite filling structure comprising a circumferentially closed outer frame and a composite material layer filled inside the outer frame. The composite car platform, elevator car, and elevator of the present invention have high stability, good firmness, high flatness, and low cost.

[0004] Existing elevator car platforms are made of square tubes through welding. This method is prone to welding defects such as weld porosity, lack of fusion, undercuts, weld bumps, and pits. These defects reduce the strength of the weld joints and affect the stability of the elevator car platform. During the welding process, due to the influence of heat input, the weld seam and the surrounding area will generate significant stress and deformation. This may cause deformation or cracks in the elevator car platform during use, affecting its service life and safety performance. Therefore, we propose an assembled, weld-free square tube car platform. Utility Model Content

[0005] The present utility model aims to provide an assembled, weld-free square tube car platform to address the problem, as mentioned in the background art, that conventional elevator car platforms are made of square tubes by welding. This welding method is prone to welding defects, such as weld porosity, lack of fusion, undercuts, weld bumps, and pits. These defects reduce the strength of the welded joints and affect the stability of the elevator car platform. During the welding process, the weld seam and the surrounding areas will generate significant stress and deformation due to the influence of heat input. This may cause deformation or cracks in the elevator car platform during use, affecting its service life and safety performance.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an assembled, weld-free square tube car platform, comprising a car square tube, a first connecting tube mounted on the left side of the car square tube, a first side frame mounted on the left side of the first connecting tube, and a first limiting through hole formed on the inner wall of the first side frame;

[0007] A second connecting pipe is installed on the right side of the square tube of the car bottom. A second side frame is installed on the right side of the second connecting pipe. A second limiting through hole corresponding to the first limiting through hole is opened on the inner wall of the second side frame. A reinforcing rod is passed through the inside of the second limiting through hole. A stopper is fixedly installed in an integral manner on the left side of the reinforcing rod. An external thread is opened on the outer surface of the right side of the reinforcing rod, and a nut is installed on the outside of the external thread.

[0008] Preferably, the first side frame is fixedly connected to the first connecting tube, and the shape and size of the interior of the first connecting tube partially coincide with the shape and size of the square tube of the car bottom, and the first connecting tube and the square tube of the car bottom are detachably connected.

[0009] Preferably, the second connecting tube is fixedly connected to the second side frame, and the shape and size of the interior of the second connecting tube partially coincide with the shape and size of the square tube of the car bottom, and the second connecting tube and the square tube of the car bottom are detachably connected.

[0010] Preferably, the reinforcing rod passes through the first limiting through hole, the car bottom square tube and the second limiting through hole in sequence, and the shape and size of the block are larger than the shape and size of the first limiting through hole, and the nut is threadedly connected to the reinforcing rod through an external thread.

[0011] Preferably, the second side frame further comprises:

[0012] The side frame reinforcement plates are fixedly installed inside the second side frame, and the side frame reinforcement plates are evenly distributed along the inside of the second side frame.

[0013] Preferably, the car bottom square tube is further provided with:

[0014] A sleeve is installed on the outside of the square tube of the car bottom. A limiting bolt is installed on the front end of the sleeve, and a square tube reinforcement plate is fixedly installed on the rear end of the sleeve. The shape and size of the square tube of the car bottom are partially consistent with the shape and size of the inside of the sleeve. The sleeve is detachably connected to the square tube of the car bottom through the limiting bolt.

[0015] Compared with the prior art, the utility model provides an assembled, non-welded square tube car bottom platform, which has the following beneficial effects: the drip irrigation belt for the water-saving irrigation device avoids the defects caused by the welding method by setting an assembled square tube car bottom platform, and facilitates the installation and disassembly of the square tube car bottom platform, thereby improving the production efficiency of the square tube car bottom platform and facilitating the disassembly and replacement of damaged parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0018] In the figure: 1. first side frame; 2. first connecting pipe; 3. square tube reinforcement plate; 4. limiting bolt; 5. sleeve; 6. square tube of car bottom; 7. second connecting pipe; 8. side frame reinforcement plate; 9. second side frame; 10. reinforcement rod; 11. nut; 12. external thread; 13. stopper; 14. first limiting through hole; 15. second limiting through hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-2, an assembled non-welded square tube car bottom platform, including a car bottom square tube 6, a first connecting tube 2 is installed on the left side of the car bottom square tube 6, and a first side frame 1 is installed on the left side of the first connecting tube 2; the first side frame 1 is fixedly connected to the first connecting tube 2, and the shape and size of the interior of the first connecting tube 2 partially coincide with the shape and size of the car bottom square tube 6, and the first connecting tube 2 and the car bottom square tube 6 are detachably connected, and a first limiting through hole 14 is opened on the inner wall of the first side frame 1; a sleeve 5 is installed on the outside of the car bottom square tube 6, and the sleeve 5 The front end is installed with a limiting bolt 4, and the rear end of the sleeve 5 is fixedly installed with a square tube reinforcement plate 3 in an integrated manner. The shape and size of the car bottom square tube 6 are partially consistent with the shape and size of the inner part of the sleeve 5. The sleeve 5 is detachably connected to the car bottom square tube 6 through the limiting bolt 4; the second connecting pipe 7 is installed on the right side of the car bottom square tube 6, and the right side of the second connecting pipe 7 is installed with a second side frame 9; the side frame reinforcement plate 8 is fixedly installed inside the second side frame 9, and the side frame reinforcement plates 8 are evenly distributed along the inner part of the second side frame 9; the second connecting pipe 7 The second side frame 9 is fixedly connected to the second connecting pipe 7, and the shape and size of the interior of the second connecting pipe 7 are partially consistent with the shape and size of the car bottom square pipe 6, and the second connecting pipe 7 is detachably connected to the car bottom square pipe 6. The inner wall of the second side frame 9 is provided with a second limiting through hole 15 corresponding to the first limiting through hole 14. The interior of the second limiting through hole 15 is penetrated by a reinforcing rod 10. The left side of the reinforcing rod 10 is fixedly installed with a stopper 13 in an integrated manner. The outer surface of the right side of the reinforcing rod 10 is provided with an external thread 12, and the outside of the external thread 12 is provided with a screw thread. The nut 11; the reinforcing rod 10 passes through the first limiting through hole 14, the car bottom square tube 6 and the second limiting through hole 15 in sequence, and the shape and size of the block 13 are larger than the shape and size of the first limiting through hole 14, and the nut 11 is threadedly connected to the reinforcing rod 10 through the external thread 12; by setting up an assembled square tube car bottom platform, the defects caused by the welding method are avoided, and the square tube car bottom platform is easy to install and disassemble, thereby improving the production efficiency of the square tube car bottom platform and facilitating the disassembly and replacement of damaged components.

[0021] Working principle: When assembling the weldless square tube car bottom platform, first pass the car bottom square tube 6 through the inside of the sleeve 5, screw the limit bolt 4 against the car bottom square tube 6 to fix the sleeve 5, and then insert the car bottom square tube 6 into the first connecting tube 2 and the second connecting tube 7 on the first side frame 1 and the second side frame 9. Secondly, pass the reinforcing rod 10 through the first limiting through-hole 14, the car bottom square tube 6 and the second limiting through-hole 15 in turn, and then screw the nut 11 onto the reinforcing rod 10 through the external thread 12, and then assemble the first side frame 1, the car bottom square tube 6 and the second side frame 9 together. Secondly, the setting of the side frame reinforcement plate 8 strengthens the overall strength of the second side frame 9, and the same is true for the first side frame 1. Then the setting of the sleeve 5 and the square tube reinforcement plate 3 connects multiple car bottom square tubes 6 together, so that the pressure borne by the car bottom square tube 6 can be shared with each other, avoiding excessive damage to a single car bottom square tube 6. This is the working principle of the drip irrigation belt for water-saving irrigation device.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled non-welded square tube car bottom platform, characterized in that: include: A square tube (6) for the car bottom, a first connecting tube (2) being installed on the left side of the square tube (6), a first side frame (1) being installed on the left side of the first connecting tube (2), and a first limiting through hole (14) being opened on the inner wall of the first side frame (1); A second connecting pipe (7) is installed on the right side of the car bottom square pipe (6); a second side frame (9) is installed on the right side of the second connecting pipe (7); a second limiting through hole (15) corresponding to the first limiting through hole (14) is opened on the inner wall of the second side frame (9); a reinforcing rod (10) is passed through the inside of the second limiting through hole (15); a stopper (13) is fixedly installed on the left side of the reinforcing rod (10); a thread (12) is opened on the outer surface of the right side of the reinforcing rod (10); a nut (11) is installed on the outside of the thread (12).

2. The assembled non-welded square tube car floor platform according to claim 1, characterized in that: The first side frame (1) is fixedly connected to the first connecting tube (2), and the shape and size of the interior of the first connecting tube (2) partially coincide with the shape and size of the car bottom square tube (6), and the first connecting tube (2) and the car bottom square tube (6) are detachably connected.

3. The assembled non-welded square tube car floor platform according to claim 1, characterized in that: The second connecting tube (7) is fixedly connected to the second side frame (9), and the shape and size of the interior of the second connecting tube (7) partially coincide with the shape and size of the car bottom square tube (6), and the second connecting tube (7) and the car bottom square tube (6) are detachably connected.

4. The assembled non-welded square tube car floor platform according to claim 1, characterized in that: The reinforcing rod (10) sequentially passes through the first limiting through hole (14), the car bottom square tube (6) and the second limiting through hole (15), and the shape and size of the stopper (13) are larger than the shape and size of the first limiting through hole (14), and the nut (11) is threadedly connected to the reinforcing rod (10) through a thread (12).

5. The assembled non-welded square tube car floor platform according to claim 1, characterized in that: The second side frame (9) is further provided with: A side frame reinforcement plate (8) is fixedly mounted inside the second side frame (9), and the side frame reinforcement plate (8) is evenly distributed along the inside of the second side frame (9).

6. The assembled non-welded square tube car floor platform according to claim 1, characterized in that: The car bottom square tube (6) is also provided with: A sleeve (5) is installed on the outside of the car bottom square tube (6), a limiting bolt (4) is installed on the front end of the sleeve (5), and a square tube reinforcement plate (3) is fixedly installed on the rear end of the sleeve (5) in an integrated manner. The shape and size of the car bottom square tube (6) partially coincide with the shape and size of the inside of the sleeve (5), and the sleeve (5) is detachably connected to the car bottom square tube (6) through the limiting bolt (4).

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