Lifting door of lifting box

Abstract

The utility model discloses a lifting box lifting door, which relates to the field of lifters and comprises a lift car, an upper double door is slidably connected in the lift car, a lower double door is slidably connected on the front side of the lift car, a connecting beam is fixedly mounted at the upper end of the lift car, and a pulley is rotatably connected on the outer side of the upper end of the connecting beam. A steel wire rope is wound around the outer wall of the pulley, and the two ends of the steel wire rope are fixedly connected with the upper double door and the lower double door respectively. By the adoption of the structure, in the using process of the lifting car, the upper double door and the lower double door are arranged to be opened in different directions, the supporting effect of the upper double door and the lower double door can be effectively improved, the risk that the upper double door and the lower double door are damaged is reduced, the service life of the upper double door and the service life of the lower double door are prolonged, and the safety of the lifting car is improved. And the lower parts of the upper double-door and the lower double-door can be effectively prevented from being jacked up, so that high-altitude falling of goods due to falling of the goods is effectively avoided, and the safety of a construction site is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of elevators, and in particular relates to a lifting door of a lifting box. Background Art

[0002] A construction elevator, also known as a construction lift or construction hoist, generally refers to a means of transport that vertically transports pedestrians or building materials and goods on a construction site. It is the most commonly used vertical means of transporting people and goods in the contemporary construction industry. A construction elevator, also known as a freight elevator, is generally larger and has a heavier load capacity than a passenger elevator.

[0003] In the prior art, when the double-door car of a construction elevator is in use, the double doors are mostly opened in one direction and upward. Therefore, when loading heavy objects, if the goods fall over, it is easy for the goods to lift up the lower part of the door, which not only easily causes damage to the double doors, but also easily causes the goods to fall from the lower part of the double doors, thereby seriously affecting the safety of the elevator. Utility Model Content

[0004] In response to the problems mentioned in the background technology, the purpose of the present utility model is to provide a lifting box lifting door to solve the problem that the double doors of the lifting box of the construction elevator in the prior art are mostly single-direction and open upward, which not only easily causes damage to the double doors when the goods are dumped, but also easily causes the goods to fall.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A lifting box lifting door comprises a car, wherein the interior of the car is slidingly connected to an upper double-opening door, the front of the car is slidingly connected to a lower double-opening door, the upper end of the car is fixedly installed with a connecting beam, the outer side of the upper end of the connecting beam is rotatably connected to a pulley, the outer wall of the pulley is wrapped with a steel wire rope, and the two ends of the steel wire rope are respectively fixedly connected to the upper double-opening door and the lower double-opening door; a lifting assembly is also fixedly installed on the car, comprising a motor, a screw and a threaded sleeve, the motor is installed on one side of the car, the screw is fixedly connected to the output end of the motor, the threaded sleeve is fixedly installed on one side of the upper double-opening door, and the threaded sleeve is threadedly connected to the outer wall of the screw. The lifting assembly can be replaced with other transmission structures. The transmission structure of the car double-opening door is existing technology and will not be elaborated on here.

[0007] Furthermore, as a preferred technical solution, a pull rod is fixedly installed on the rear side of the upper end of the car, and the connecting beam is fixedly connected to the upper end of the car through the pull rod.

[0008] Furthermore, as a preferred technical solution, guide rails are fixedly installed on the inner wall and front side of the car, and the upper double door and the lower double door are slidingly connected to the car through the guide rails.

[0009] Furthermore, as an optimal technical solution, the upper end of the upper double door is fixedly connected to an upper crossbeam, and the upper crossbeam is in contact with the upper end of the car body.

[0010] Furthermore, as an optimal technical solution, the lower end of the lower double door is fixedly connected to a lower crossbeam, and the lower crossbeam is in contact with the front side of the lower end of the car body.

[0011] Furthermore, as an optimal technical solution, bolts are respectively inserted into the upper end of the upper beam and the lower end of the lower beam, one end of the bolts respectively passes through the upper beam, the upper double door and the lower beam, the lower double door, and one end of the bolts is threadedly connected with a nut.

[0012] Furthermore, as an optimal technical solution, the outer wall of one end of the bolt is respectively sleeved with a flat washer and a spring washer, one side of the flat washer is fitted with the nut, the other side of the flat washer is fitted with the spring washer, and one side of the spring washer is respectively fitted with the inner walls of the upper double door and the lower double door.

[0013] In summary, the present invention has the following beneficial effects:

[0014] First, during the use of the lift car, by setting the upper and lower double doors to open in different directions, the support effect of the upper and lower double doors can be effectively improved, thereby reducing the risk of damage to the upper and lower double doors, thereby increasing the service life of the upper and lower double doors, and effectively preventing the lower parts of the upper and lower double doors from being lifted up, effectively preventing goods from falling and causing falling objects from high altitude, thereby ensuring the safety of the construction site;

[0015] Second, by adopting a transmission mechanism to drive the upper double door to move longitudinally, the upper double door can drive the lower double door to move simultaneously through the pulley and wire rope, so that the upper double door and the lower double door can be opened synchronously to facilitate the entry and exit of goods and staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a right side structural schematic diagram of the present utility model;

[0018] Figure 3 This utility model Figure 1 Schematic diagram of the enlarged structure of part A.

[0019] Drawing numbers: 1. upper double door, 2. lower double door, 3. pulley, 4. connecting beam, 5. upper crossbeam, 6. lower crossbeam, 7. guide rail, 8. wire rope, 9. pull rod, 10. nut, 11. bolt, 12. flat washer, 13. spring washer, 14. car. DETAILED DESCRIPTION

[0020] Example

[0021] refer to Figures 1 to 3 , the lifting box door described in this embodiment includes a car 14, the interior of the car 14 is slidably connected to the upper double door 1, the front of the car 14 is slidably connected to the lower double door 2, the upper end of the car 14 is fixedly installed with a connecting beam 4, the outer side of the upper end of the connecting beam 4 is rotatably connected to a pulley 3, the outer wall of the pulley 3 is wrapped with a steel wire rope 8, and the two ends of the steel wire rope 8 are respectively fixedly connected to the upper double door 1 and the lower double door 2; a lifting assembly is also fixedly installed on the car 14, including a motor, a screw and a threaded sleeve, the motor is installed on one side of the car 14, the screw is fixedly connected to the output end of the motor, the threaded sleeve is fixedly installed on one side of the upper double door 1, and the threaded sleeve is threadedly connected to the outer wall of the screw, and the lifting assembly can be replaced with other transmission structures. The transmission structure of the double door of the car 14 is a prior art and will not be elaborated on here.

[0022] When the lift car 14 is in use, the upper double door 1 is driven to move longitudinally by the lifting assembly, so that the upper double door 1 can drive the lower double door 2 to move simultaneously through the pulley 3 and the wire rope 8, so that the upper double door 1 and the lower double door 2 are opened at the same time, and the lower double door 2 is opened in a different direction from the upper double door 1 to facilitate the entry and exit of goods and staff. It can also effectively improve the supporting effect of the upper double door 1 and the lower double door 2, so as to reduce the risk of damage to the upper double door 1 and the lower double door 2, and improve the service life of the upper double door 1 and the lower double door 2. It can also effectively prevent the lower parts of the upper double door 1 and the lower double door 2 from being lifted up, so as to effectively prevent goods from falling and falling objects from high altitude, thereby ensuring the safety of the construction site.

[0023] refer to Figure 3 A pull rod 9 is fixedly installed on the rear side of the upper end of the car 14, and the connecting beam 4 is fixedly connected to the upper end of the car 14 through the pull rod 9; by installing the pull rod 9 on the rear side of the upper end of the car 14 and installing the connecting beam 4 on the pull rod 9, the pull rod 9 plays a role in stabilizing the position of the connecting beam 4.

[0024] refer to Figure 2 The inner wall and front side of the car 14 are respectively fixedly installed with guide rails 7, and the upper double door 1 and the lower double door 2 are respectively slidably connected to the car 14 through the guide rails 7; the guide rails 7 can make the upper double door 1 and the lower double door 2 more stable when moving, and at the same time avoid the upper double door 1 and the lower double door 2 from deflecting.

[0025] refer to Figure 1The upper end of the upper double door 1 is fixedly connected to an upper crossbeam 5, which fits with the upper end of the car 14 body; the lower end of the lower double door 2 is fixedly connected to a lower crossbeam 6, which fits with the lower front end of the car 14 body; by installing an upper crossbeam 5 at the upper end of the upper double door 1, the upper crossbeam 5 can limit the position of the upper double door 1 to prevent the upper double door 1 from moving too much, and the lower crossbeam 6 can limit the position of the lower double door 2 to improve the stability of the lower double door 2.

[0026] refer to Figure 1 The upper end of the upper crossbeam 5 and the lower end of the lower crossbeam 6 are respectively inserted with bolts 11, one end of the bolt 11 passes through the upper crossbeam 5, the upper double door 1 and the lower crossbeam 6, the lower double door 2, and one end of the bolt 11 is threadedly connected with a nut 10; the outer walls of one end of the bolt 11 are respectively sleeved with a flat washer 12 and a spring washer 13, one side of the flat washer 12 fits with the nut 10, and the other side of the flat washer 12 fits with the spring washer 13, and one side of the spring washer 13 fits with the inner wall of the upper double door 1 and the lower double door 2; by adopting the combination of bolts 11 and nuts 10, and by using flat washers 12 and spring washers 13 to stabilize the position of nuts 10, avoid loosening of nuts 10, and avoid overtightening of nuts 10 and causing damage to the upper crossbeam 5, lower crossbeam 6, upper double door 1 and lower double door 2 by the bolts 11 and nuts 10, the position of the upper crossbeam 5 and the lower crossbeam 6 can be achieved.

[0027] Principle and advantages of use: When the lift car 14 is in use, the lift makes the lift car 14 move up and down through the guide rail 7. When it is necessary to load and unload goods or get on and off staff, the upper double door 1 is driven to move longitudinally by the lifting assembly, and the position of the connecting beam 4 is stabilized by the pull rod 9, so that the connecting beam 4 stabilizes the position of the pulley 3, and the upper double door 1 drives the lower double door 2 to move simultaneously through the pulley 3 and the wire rope 8, so that the upper double door 1 and the lower double door 2 are opened at the same time, and the lower double door 2 is opened in a different direction from the upper double door 1, so that goods and staff can enter and exit. Moreover, after the upper double door 1 and the lower double door 2 are closed, the bolts 11, nuts 10, flat washers 12, and spring washers are used to tighten the upper double door 1 and the lower double door 2. 13. The upper crossbeam 5 is respectively installed on the upper end of the upper double door 1, and the lower crossbeam 6 is installed on the lower end of the lower double door 2. The upper crossbeam 5 can limit the position of the upper double door 1 to prevent the upper double door 1 from moving too much, and the lower crossbeam 6 can limit the position of the lower double door 2 to improve the stability of the lower double door 2. The supporting effect of the upper and lower double doors 1 and 2 can be effectively improved to reduce the risk of damage to the upper and lower double doors 1 and 2, and extend the service life of the upper and lower double doors 1 and 2. In addition, the lower parts of the upper and lower double doors 1 and 2 can be effectively prevented from being lifted up, so as to effectively prevent goods from falling and falling objects from high altitude, thereby ensuring the safety of the construction site.

Claims

1. A lifting box door, comprising a car (14), characterized in that: The interior of the car (14) is slidably connected to an upper double door (1), the front of the car (14) is slidably connected to a lower double door (2), the upper end of the car (14) is fixedly mounted with a connecting beam (4), the outer side of the upper end of the connecting beam (4) is rotatably connected to a pulley (3), the outer wall of the pulley (3) is wound with a steel wire rope (8), and the two ends of the steel wire rope (8) are respectively fixedly connected to the upper double door (1) and the lower double door (2).

2. The lifting door of a lifting box according to claim 1, characterized in that: A pull rod (9) is fixedly installed on the rear side of the upper end of the car (14), and the connecting beam (4) is fixedly connected to the upper end of the car (14) through the pull rod (9).

3. The lifting door of a lifting box according to claim 1, characterized in that: The inner wall and the front side of the car (14) are respectively fixedly mounted with guide rails (7), and the upper double door (1) and the lower double door (2) are respectively slidably connected to the car (14) via the guide rails (7).

4. The lifting door of a lifting box according to claim 1, characterized in that: The upper end of the upper double door (1) is fixedly connected to an upper crossbeam (5), and the upper crossbeam (5) is in contact with the upper end of the car (14) body.

5. The lifting door of a lifting box according to claim 4, characterized in that: The lower end of the lower double door (2) is fixedly connected to a lower crossbeam (6), and the lower crossbeam (6) is in contact with the front side of the lower end of the car (14) body.

6. The lifting door of a lifting box according to claim 5, characterized in that: The upper end of the upper crossbeam (5) and the lower end of the lower crossbeam (6) are respectively connected with bolts (11), one end of the bolts (11) respectively passes through the upper crossbeam (5), the upper double door (1) and the lower crossbeam (6), the lower double door (2), and one end of the bolts (11) is threadedly connected with a nut (10).

7. The lifting door of a lifting box according to claim 6, characterized in that: The outer wall of one end of the bolt (11) is respectively sleeved with a flat washer (12) and a spring washer (13); one side of the flat washer (12) is fitted with the nut (10); the other side of the flat washer (12) is fitted with the spring washer (13); and one side of the spring washer (13) is respectively fitted with the inner walls of the upper double door (1) and the lower double door (2).

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