A telescopic lifting cage

Abstract

This utility model discloses a telescopic lifting cage, relating to the field of lifting platform technology. It includes a base, which is fixedly installed on the top of the lifting platform. A fixing part is provided on the top periphery of the base, and a sliding lifting part is provided inside the fixing part. An opening is provided on one side of both the fixing part and the lifting part. The fixing part and the lifting part have a C-shaped structure. A fixed gantry is provided on one side of the top of the base, and a lifting gantry is provided inside the fixed gantry. The lifting gantry rises and falls synchronously with the lifting part. A lifting mechanism is provided inside the upper part of the base. This telescopic lifting cage is fixed to the top of the lifting platform by the base. As the lifting platform rises, it raises the base to a certain height. If further height increase is needed, the lifting mechanism raises the lifting platform again, which in turn raises the lifting part and the lifting gantry synchronously. This reduces swaying during secondary lifting, and the telescopic cage provides better protection for people.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically a telescopic lifting cage. Background Technology

[0002] A lifting mechanism, also known as a lifting platform, is a type of lifting equipment that raises or lowers people or goods to a certain height. It is generally hydraulically driven, hence the name hydraulic lifting platform. It is widely used in high-altitude installation, maintenance, and other operations. According to different lifting mechanisms, they can be divided into: scissor lift, telescopic lift, sleeve lift, telescopic boom lift, and articulated boom lift.

[0003] Existing elevators face increasingly stringent requirements for safety and stability. Typically, a cage is installed at the top of the elevator to protect people or objects. However, common cages are usually fixed structures, achieved by welding columns and crossbars above the lifting platform, thus ensuring the safety of people or objects.

[0004] However, if the height is insufficient after the elevator has been raised to a certain height, people need to restart the elevator to raise it again. Since the elevator has already been raised to a certain height, the shaking of the elevator will increase when the elevator is restarted, which will increase the fear of height for people standing in the cage. Therefore, we need a telescopic elevator cage. Utility Model Content

[0005] The purpose of this utility model is to provide a telescopic lifting cage to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a telescopic lifting cage, including a base, the base being fixedly installed on the top of a lifting machine, a fixing part being provided on the top periphery of the base, a lifting part being provided on the inner side of the fixing part, an opening being provided on one side of the fixing part and the lifting part, the fixing part and the lifting part having a C-shaped structure, a fixed gantry being provided on one side of the top of the base, a lifting gantry being provided on the inner side of the fixed gantry, the lifting gantry being raised and lowered synchronously with the lifting part, a lifting mechanism being provided inside the upper part of the base, a lifting platform being provided above the lifting mechanism and fastened to the upper part of the base, the lifting mechanism being used to drive the lifting platform to move up and down.

[0007] Preferably, the base includes a bottom substrate, and a plurality of bolt holes are provided at the corners of the substrate. The substrate is fixed to the top of the elevator through the bolt holes and bolts.

[0008] A plurality of reinforcing liner plates are fixedly provided on the top periphery of the substrate, and a box is fixedly installed on the outer wall of the top of the substrate. An extension plate is fixedly connected to the outer top of the box, and the extension plate is fixedly installed on the outer top wall of the reinforcing liner plates.

[0009] Preferably, the fixing part includes a plurality of columns fixedly installed on the top outer wall of the base, with a limiting piece fixedly installed at the top of the column, and a reinforcing bar fixedly provided between adjacent limiting pieces.

[0010] Preferably, the lifting unit includes a ring rod slidably sleeved on the inner side of the column, a guide ring fixedly provided at the bottom end of the ring rod and sleeved on the outside of the column, a connecting frame provided on the inner side of the guide ring, the connecting frame fixedly connected to the side of the lifting platform, cover plates fixedly provided at the top ends of several ring rods, and a core sleeve fixedly provided on the outer side of one of the columns located at the corner.

[0011] Preferably, the fixed gantry includes a restraining sleeve rotatably connected to the fixing part, and a plurality of extension arms are fixedly provided on one outer wall of the restraining sleeve. A plurality of the columns are fixed on one outer wall of the extension arms. The distal end of the extension arm is fixedly provided with ear seats symmetrically distributed vertically, and a pin is inserted into the ear seat.

[0012] Preferably, the lifting gantry includes a connecting plate, and several ring rods are fixedly installed on the bottom outer wall of the connecting plate. Both ends of the connecting plate are fixedly provided with overlapping joints. Insert rods are provided inside two of the ring rods. Core holes are provided on the uprights of the fixed gantry, and the insert rods are slidably inserted into the core holes.

[0013] Preferably, the lifting mechanism includes a drive motor fixed to one side of the base, and a reducer is provided on the output shaft of the drive motor. A lead screw that penetrates into the base is connected to one side of the reducer, and a lead screw nut is threaded onto the external thread of the lead screw.

[0014] The base has sliding grooves on both sides inside and on both sides below the lifting platform. Rollers are installed inside the sliding grooves of the base. A movable shaft is connected between the two rollers. A bearing seat is installed on one side of the top of the base. Lifting rod 1 is rotatably connected to both ends of the movable shaft 1. Lifting rod 2 is connected to the bearing seat via a rotating shaft. The sliding groove of the lifting platform has a movable shaft 2 inside. A pin is installed at the node between lifting rod 1 and lifting rod 2.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this telescopic lifting cage,

[0016] (1) The base is fixed to the top of the elevator. As the elevator rises, the base is raised to a certain height. If it is necessary to raise the height further, the lifting mechanism is used to lift the lifting platform again. Then the lifting platform lifts the lifting part and the lifting gate synchronously, reducing the shaking of the secondary lifting. The telescopic cage provides better protection for people.

[0017] (2) A fixed gantry is adopted, which can rotate on one side of the fixed part to realize the opening and closing of the fixed gantry along with the lifting gantry, making it convenient for people to enter and exit the cage. At the same time, when the lifting part is raised, it can drive the lifting gantry to rise synchronously, further improving the protection effect for people in the air. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the structure of this utility model from one angle;

[0019] Figure 2 This is a three-dimensional view of the structure of this utility model from another angle;

[0020] Figure 3 This is a schematic diagram of the lifting part structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixed gantry and lifting gantry structures of this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting mechanism of this utility model.

[0023] In the diagram: 1. Base; 11. Base plate; 12. Reinforcing liner; 13. Bolt hole; 14. Box body; 15. Extension plate; 2. Fixing part; 21. Limiting plate; 22. Reinforcing bar; 3. Lifting part; 31. Ring rod one; 32. Guide ring; 33. Connecting frame; 34. Cover plate; 35. Core sleeve; 4. Fixing frame; 41. Restraint sleeve; 42. Extension arm; 43. Column; 44. Ear seat; 45. Pin rod; 5. Lifting gantry; 51. Core hole; 52. Insert rod; 53. Ring rod II; 54. Connecting plate; 55. Overlap joint; 6. Lifting mechanism; 61. Drive motor; 62. Reducer; 63. Lead screw; 64. Lead screw nut; 65. Moving shaft I; 66. Slide groove; 67. Roller; 68. Lifting rod I; 69. Lifting rod II; 70. Moving shaft II; 71. Pin; 72. Bearing seat; 7. Lifting platform. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-5 As shown, this utility model embodiment provides a telescopic lifting cage, including a base 1, which is fixedly installed on the top of the lifting machine. A fixing part 2 is provided on the top periphery of the base 1, and a lifting part 3 that slides up and down is provided on the inner side of the fixing part 2. An opening is provided on one side of the fixing part 2 and the lifting part 3. The fixing part 2 and the lifting part 3 have a C-shaped structure. A fixed gate frame 4 is provided on one side of the top of the base 1, and a lifting gate frame 5 is provided on the inner side of the fixed gate frame 4. The lifting gate frame 5 rises and falls synchronously with the lifting part 3. A lifting mechanism 6 is provided inside the upper part of the base 1, and a lifting platform 7 that is fastened to the upper part of the base 1 is provided above the lifting mechanism 6. The lifting mechanism 6 is used to drive the lifting platform 7 to move up and down.

[0026] In this embodiment, a base 1 is included. The base 1 is fixedly installed on the top of the elevator. The base 1 includes a bottom base plate 11. Several bolt holes 13 are provided at the corners of the base plate 11. The base plate 11 is fixed to the top of the elevator through the bolt holes 13 and bolts. The base plate 11 is fixedly installed on the top of the elevator by inserting bolts into the bolt holes 13. The structure of the elevator is also a commonly used lifting structure in the prior art. It uses the parallelogram principle to achieve lifting. The base plate 11 is installed on the platform on top of it.

[0027] Specifically, a number of reinforcing plates 12 are fixedly arranged on the top periphery of the substrate 11, and a housing 14 is fixedly installed on the outer wall of the top of the substrate 11. An extension plate 15 is fixedly connected to the outer top of the housing 14, and the extension plate 15 is fixedly installed on the outer top wall of the reinforcing plates 12. The reinforcing plates 12 improve the connection strength between the substrate 11 and the extension plate 15. The housing 14 is used to install the lifting mechanism 6. When the lifting mechanism 6 drives the lifting platform 7 to descend completely, the upper surface of the lifting platform 7 is flush with the upper surface of the housing 14.

[0028] In this embodiment, a fixing part 2 is provided on the top periphery of the base 1. The fixing part 2 includes several columns 43 fixedly installed on the top outer wall of the base 1. A limiting piece 21 is fixedly installed at the top of the column 43. A reinforcing bar 22 is fixedly provided between adjacent limiting pieces 21. The bottom end of the column 43 of the fixing part 2 is fixedly welded to the top outer wall of the extension plate 15. When the ring rod 31 slides upward on the inner side of the column 43, the limiting piece 21 is used to limit the guide ring 32, so as to prevent the ring rod 31 from slipping off the top of the column 43.

[0029] In this embodiment, a sliding lifting part 3 is provided on the inner side of the fixing part 2. An opening is provided on one side of the fixing part 2 and the lifting part 3. The fixing part 2 and the lifting part 3 have a C-shaped structure. The lifting part 3 includes a ring rod 31 that is slidably sleeved on the inner side of the column 43. A guide ring 32 that is sleeved on the outside of the column 43 is fixedly provided at the bottom end of the ring rod 31. A connecting frame 33 is provided on the inner side of the guide ring 32. The connecting frame 33 is fixedly connected to the side of the lifting platform 7 and is connected to the lifting platform 7 through the connecting frame 33. As the lifting platform 7 rises, it can drive the lifting part 3 to move synchronously. A cover plate 34 is fixedly provided at the top of several ring rods 31. A core sleeve 35 is fixedly provided on the outside of one of the columns 43 located at the corner. The ring rods 31 are partially surrounded on the inner side of the column 43. The C-shaped lifting part 3 is inserted into the C-shaped part of the fixing part 2, thereby realizing that several ring rods 31 slide on the inner side of the column 43, allowing the lifting part 3 to rise along the fixing part 2.

[0030] In this embodiment, a fixed door frame 4 is provided on one side of the top of the base 1. The fixed door frame 4 includes a restraining sleeve 41 that is rotatably connected to the fixing part 2. The restraining sleeve 41 is sleeved on the outside of the column 43 at the corner and rotates outside of it. Several extension arms 42 are fixedly provided on one side of the outer wall of the restraining sleeve 41. Several columns 43 are fixed on one side of the outer wall of the extension arm 42. The extension arm 42 rotates outside of the column 43 through the restraining sleeve 41 to realize the opening and closing of the fixed door frame 4. People enter the cage from here. The far end of the extension arm 42 is fixedly provided with ear seats 44 that are symmetrically distributed vertically. A pin rod 45 is inserted into the inside of the ear seat 44. When the fixed door frame 4 is closed, the ear seat 44 is just inserted into the top and bottom of the core sleeve 35. The pin rod 45 is inserted into the inside of the ear seat 44 and the core sleeve 35 to realize the fixed connection between the fixed door frame 4 and the fixing part 2.

[0031] In this embodiment, a lifting gantry 5 is provided on the inner side of the fixed gantry 4. The lifting gantry 5 rises and falls synchronously with the lifting part 3. The lifting gantry 5 includes a connecting plate 54. Several ring rods 53 are fixedly installed on the bottom outer wall of the connecting plate 54. Both ends of the connecting plate 54 are fixedly provided with overlapping joints 55. Insert rods 52 are provided inside the two ring rods 53. The column 43 of the fixed gantry 4 is provided with a core hole 51, and the insert rod 52 is slidably inserted into the core hole 51. After the lifting part 3 is raised, the overlapping joint 55 overlaps on the cover plate 34, thereby using the cover plate 34 to drive the overlapping joint 55 and the connecting plate 54 to rise. At this time, the insert rod 52 moves up and down inside the core hole 51, ensuring the stability of the connection between the lifting gantry 5 and the fixed gantry 4 and improving the protection effect for people.

[0032] In this embodiment, a lifting mechanism 6 is provided inside the upper part of the base 1, and a lifting platform 7 is provided above the lifting mechanism 6 and fastened to the upper part of the base 1. The lifting mechanism 6 is used to drive the lifting platform 7 to move up and down. The lifting mechanism 6 includes a drive motor 61 fixed to one side of the base 1, and a reducer 62 is provided on the output shaft of the drive motor 61. A lead screw 63 that penetrates into the interior of the base 1 is connected to one side of the reducer 62, and a lead screw nut 64 is threaded onto the external thread of the lead screw 63.

[0033] Specifically, the base 1 has sliding grooves 66 on both sides inside and the lifting platform 7 on both sides below. The sliding groove 66 of the base 1 has rollers 67 inside. The two rollers 67 are connected by a moving shaft 65. The top side of the base 1 has a bearing seat 72. The two ends of the moving shaft 65 are rotatably connected to the lifting rod 68. The bearing seat 72 is connected to the lifting rod 69 via a rotating shaft. The sliding groove 66 of the lifting platform 7 has a moving shaft 70 inside. The joint between the lifting rod 68 and the lifting rod 69 is provided with a pin 71.

[0034] The movement of the lifting mechanism 6 is as follows: when the drive motor 61 is started, it drives the lead screw 63 to rotate through the reducer 62. The lead screw 63 drives the lead screw nut 64 to move linearly. Then, the lead screw nut 64 drives the moving shaft 65 to slide inside the slide groove 66, so that the bottom end of the lifting rod 68 is raised. At this time, the moving shaft 70 at the top of the lifting rod 69 slides inside the slide groove 66 of the lifting platform 7. The bottom end of the moving shaft 70 rotates on the bearing seat 72, thereby driving the lifting platform 7 to rise. When the drive motor 61 reverses, the lifting platform 7 moves downward.

[0035] Working principle: When in use, the operator fixes the base 1 to the top of the elevator. As the elevator rises, it can lift the base 1 to a certain height, and people stand in the cage composed of the fixed part 2 and the fixed door frame 4.

[0036] When the lifting height of the elevator is insufficient to complete the work, the operator can activate the lifting mechanism 6 to raise the lifting platform 7. At the same time, when the lifting platform 7 rises, it can drive the lifting part 3 to rise along the fixed part 2. The lifting part 3 drives the lifting gantry 5 to rise. The lifting part 3 and the lifting gantry 5 also form a cage after being raised, which further improves the protection effect for people working at height.

[0037] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A telescopic lifting cage, comprising a base (1), characterized in that: The base (1) is fixedly installed on the top of the elevator. A fixing part (2) is provided on the top periphery of the base (1). A sliding lifting part (3) is provided on the inner side of the fixing part (2). An opening is provided on one side of the fixing part (2) and the lifting part (3). The fixing part (2) and the lifting part (3) are C-shaped structures. A fixed gate frame (4) is provided on one side of the top of the base (1). A lifting gate frame (5) is provided on the inner side of the fixed gate frame (4). The lifting gate frame (5) moves up and down synchronously with the lifting part (3). A lifting mechanism (6) is provided inside the upper part of the base (1). A lifting platform (7) is provided above the lifting mechanism (6) and fastened to the upper part of the base (1). The lifting mechanism (6) is used to drive the lifting platform (7) to move up and down.

2. The telescopic lifting cage according to claim 1, characterized in that: The base (1) includes a bottom base plate (11), and a number of bolt holes (13) are provided at the corners of the base plate (11). The base plate (11) is fixed to the top of the elevator through the bolt holes (13) and bolts. A plurality of reinforcing liner plates (12) are fixedly provided on the top periphery of the substrate (11), and a box (14) is fixedly installed on the outer wall of the top of the substrate (11). An extension plate (15) is fixedly connected to the outer side of the top of the box (14), and the extension plate (15) is fixedly installed on the outer wall of the top of the reinforcing liner plate (12).

3. The telescopic lifting cage according to claim 1, characterized in that: The fixing part (2) includes several columns (43) fixedly installed on the top outer wall of the base (1). The top of the column (43) is fixedly installed with a limiting piece (21), and a reinforcing bar (22) is fixedly provided between adjacent limiting pieces (21).

4. A telescopic lifting cage according to claim 3, characterized in that: The lifting part (3) includes a ring rod (31) that is slidably sleeved on the inner side of the column (43). The bottom end of the ring rod (31) is fixedly provided with a guide ring (32) that is sleeved on the outside of the column (43). A connecting frame (33) is provided on the inner side of the guide ring (32). The connecting frame (33) is fixedly connected to the side of the lifting platform (7). A cover plate (34) is fixedly provided on the top of several ring rods (31). A core sleeve (35) is fixedly provided on the outer side of one of the columns (43) located at the corner.

5. A telescopic lifting cage according to claim 4, characterized in that: The fixed gantry (4) includes a restraint sleeve (41) rotatably connected to the fixed part (2), and a plurality of extension arms (42) are fixedly provided on one side outer wall of the restraint sleeve (41). A plurality of columns (43) are fixed on one side outer wall of the extension arm (42). The distal end of the extension arm (42) is fixedly provided with ear seats (44) symmetrically distributed vertically. A pin rod (45) is inserted into the inside of the ear seat (44).

6. A telescopic lifting cage according to claim 5, characterized in that: The lifting gantry (5) includes a connecting plate (54). Several ring rods (53) are fixedly installed on the bottom outer wall of the connecting plate (54). Both ends of the connecting plate (54) are fixedly provided with joints (55). Insert rods (52) are provided inside the two ring rods (53). The column (43) of the fixed gantry (4) is provided with a core hole (51), and the insert rod (52) is slidably inserted into the core hole (51).

7. A telescopic lifting cage according to claim 1, characterized in that: The lifting mechanism (6) includes a drive motor (61) fixed on one side of the base (1), and a reducer (62) is provided on the output shaft of the drive motor (61). A lead screw (63) that penetrates into the base (1) is connected to one side of the reducer (62), and a lead screw nut (64) is threaded onto the outside of the lead screw (63). The base (1) has sliding grooves (66) on both sides inside and on both sides below the lifting platform (7). Rollers (67) are provided inside the sliding grooves (66) of the base (1). A movable shaft (65) is connected between the two rollers (67). A bearing seat (72) is provided on one side of the top of the base (1). A lifting rod (68) is rotatably connected to both ends of the movable shaft (65). A lifting rod (69) is connected to the bearing seat (72) through a rotating shaft. A movable shaft (70) is provided inside the sliding grooves (66) of the lifting platform (7). A pin (71) is provided at the node of the lifting rod (68) and the lifting rod (69).

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