Adjustable folding stair for blow molding machine

Abstract

The utility model discloses an adjustable folding stair for a blow molding machine, and belongs to the technical field of stair design. The adjustable folding stair for the blow molding machine comprises a fixed platform, a plurality of supporting frame pin shafts rotationally installed on the fixed platform, a plurality of first supporting frames fixedly installed on one supporting frame pin shaft and a plurality of second supporting frames fixedly installed on the other supporting frame pin shaft. The fixing plates are fixedly installed at the ends, away from the supporting frame pin shafts, of the first supporting frames and the second supporting frames, and the pedal pin shafts are rotationally installed between the two first supporting frames and between the two second supporting frames. Through cooperative use of all the devices and cooperation of the first supporting frame, the second supporting frame, the pedal pin shafts and the pedal body, the multiple pedal pin shafts and the ground are located on the same horizontal plane all the time no matter the platform ascends or descends, the gravity center of a person standing on the pedal is prevented from deviating, installation is convenient, and use safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of staircase design technology, specifically an adjustable folding staircase for blow molding machines. Background Technology

[0002] Adjustable folding stairs are a type of staircase design with adjustable height and folding function. These stairs are typically used in spaces that require frequent changes, such as showrooms and construction sites, or in space-saving home environments, such as duplexes or villas. The design principles of adjustable folding stairs include telescopic structures, special support systems, material selection, and portability considerations.

[0003] As the platform rises and falls, the angle between the steps and the ground may not be on the same horizontal plane. This could cause a person standing on the steps to lose their center of gravity, posing a safety hazard to operators going up and down the platform.

[0004] Therefore, this utility model provides an adjustable folding staircase for blow molding machines to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides an adjustable folding staircase for a blow molding machine, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an adjustable folding staircase for a blow molding machine, comprising a fixed platform, a plurality of support frame pins rotatably mounted on the fixed platform, a plurality of first support frames fixedly mounted on one of the support frame pins, a plurality of second support frames fixedly mounted on the other support frame pin, a fixed plate fixedly mounted on one end of the first and second support frames away from the support frame pins, a plurality of pedal pins rotatably mounted between the two first support frames and between the two second support frames, a plurality of pedal bodies rotatably mounted between the first and second support frames via the pedal pins, and elastic retaining rings rotatably mounted on the pedal pins.

[0009] As a preferred technical solution of this application, the pedal pins are arranged in a linear array on the first support frame, the pedal pins pass through the first support frame and the second support frame, and one side of the elastic retaining ring is fixedly connected to one side of the first support frame and the second support frame.

[0010] As a preferred technical solution of this application, a sleeve rod is hinged to one side of the second support frame. A functional groove is opened inside the sleeve rod. A rack is fixedly connected to the inner wall of the functional groove. A sleeve is slidably connected inside the functional groove. A gear is rotatably connected to one end of the sleeve. The sleeve rod meshes with the rack.

[0011] As a preferred technical solution of this application, a connecting rod is slidably connected inside the functional slot, one end of the connecting rod is fixedly connected to a double-sided toothed rod, and the end of the connecting rod away from the double-sided toothed rod is hinged to one side of the first support frame, with the rack meshing with the double-sided toothed rod.

[0012] As a preferred technical solution of this application, a hinge block is fixedly connected to the side surface of the sleeve, a pressing plate is rotatably connected inside the hinge block, an insertion rod is fixedly connected to one side of the pressing plate, and a plurality of slots for insertion of the insertion rod are opened on the side surface of the connecting rod.

[0013] As a preferred technical solution of this application, a spring is provided between the pressing plate and the sleeve, one end of the spring is fixedly connected to the side surface of the sleeve, and the other end of the spring is fixedly connected to one side of the pressing plate.

[0014] (III) Beneficial Effects

[0015] This utility model has a simple structure and is easy to use. Through the cooperation between the first support frame, the second support frame, the pedal pins and the pedal body, the multiple pedal pins are always at the same horizontal angle to the ground, regardless of whether the platform is rising or falling. This prevents the center of gravity of the person standing on the pedal from deviating, making installation more convenient and improving safety. Attached Figure Description

[0016] Figure 1 A schematic diagram of an adjustable folding staircase for a blow molding machine. Figure 1 ;

[0017] Figure 2 A schematic diagram of an adjustable folding staircase for a blow molding machine. Figure 2 ;

[0018] Figure 3 A cross-sectional schematic diagram of the sleeve rod in an adjustable folding staircase for a blow molding machine;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0021] Figure 6 This is a schematic diagram of the installation of a connecting rod in an adjustable folding staircase for a blow molding machine.

[0022] In the picture:

[0023] 1. Fixed platform; 2. Support frame pin; 3. First support frame; 4. Second support frame; 5. Fixed plate; 6. Pedal pin; 7. Pedal body; 8. Elastic retaining ring; 9. Sleeve rod; 10. Rack; 11. Sleeve; 12. Gear; 13. Connecting rod; 14. Double-sided rack; 15. Hinge block; 16. Pressing plate; 17. Insert rod; 18. Spring. 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] This utility model provides an adjustable folding staircase for blow molding machines, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the adjustable folding staircase for the blow molding machine includes a fixed platform 1, multiple support frame pins 2 rotatably mounted on the fixed platform 1, multiple first support frames 3 fixedly mounted on one of the support frame pins 2, multiple second support frames 4 fixedly mounted on the other support frame pin 2, a fixed plate 5 fixedly mounted on the end of the first support frame 3 and the second support frame 4 away from the support frame pin 2, multiple pedal pins 6 rotatably mounted between the two first support frames 3 and the two second support frames 4, multiple pedal bodies 7 rotatably mounted between the first support frames 3 and the second support frames 4 via the pedal pins 6, and elastic retaining rings 8 rotatably mounted on the pedal pins 6.

[0026] The pedal pins 6 are arranged in a linear array on the first support frame 3. The pedal pins 6 pass through the first support frame 3 and the second support frame 4. One side of the elastic retaining ring 8 is fixedly connected to one side of the first support frame 3 and the second support frame 4.

[0027] When using the adjustable folding staircase of this blow molding machine, the fixed platform 1 is placed in a suitable position, and then multiple fixed plates 5 are fixedly installed on the ground. As the platform rises and falls, the two first support frames 3 and the two second support frames 4 are rotated simultaneously. The two first support frames 3 and the two second support frames 4 will rotate around the support frame pin 2 as the center. The rotation of the support frame pin 2 causes the pedal pin 6 fixed between the first support frame 3 and the second support frame 4 to rotate synchronously. The rotation of the pedal pin 6 causes the pedal pin 6 fixed on it to rotate synchronously. The elastic retaining ring 8 limits the pedal pin 6 to a certain extent, thereby ensuring that the multiple pedal pin 6 are always at the same horizontal plane with the ground, preventing the center of gravity of the person standing on the pedal from deviating.

[0028] Furthermore, to facilitate control of the rotation of the first support frame 3 and the second support frame 4, such as... Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a sleeve rod 9 is hinged to one side of the second support frame 4. A functional groove is provided inside the sleeve rod 9. A rack 10 is fixedly connected to the inner wall of the functional groove. A sleeve 11 is slidably connected inside the functional groove. A gear 12 is rotatably connected to one end of the sleeve 11. The sleeve rod 9 meshes with the rack 10.

[0029] The internal sliding connection of the functional slot is a connecting rod 13. One end of the connecting rod 13 is fixedly connected to a double-sided toothed rod 14. The end of the connecting rod 13 away from the double-sided toothed rod 14 is hinged to one side of the first support frame 3. The rack 10 meshes with the double-sided toothed rod 14.

[0030] When the adjustable folding staircase of this blow molding machine is in use, and the platform needs to rise or fall, the connecting rod 13, which is hinged to the first support frame 3, moves outward along the sleeve rod 9. The movement of the connecting rod 13 drives the double-sided rack 14 to move synchronously. The movement of the double-sided rack 14 drives the gear 12 that meshes with it to rotate synchronously. Since the two gears 12 mesh with the two racks 10 respectively, the rotation of the gears 12 ultimately drives the sleeve 11 to move along the direction of the rack 10, thereby realizing the synchronous outward movement of the sleeve 11 and the connecting rod 13. Through the movement of the sleeve 11 and the connecting rod 13, the two first support frames 3 and the two second support frames 4 rotate, and the rise and fall of the platform is completed by the rotation of the first support frames 3 and the second support frames 4.

[0031] It should be noted that, in order to control the movement of connecting rod 13 inside sleeve 9, such as Figure 1 , Figure 2 and Figure 6As shown, a hinge block 15 is fixedly connected to the side surface of the sleeve 11, and a pressing plate 16 is rotatably connected inside the hinge block 15. A plug rod 17 is fixedly connected to one side of the pressing plate 16, and multiple slots for the plug rod 17 to be inserted are opened on the side surface of the connecting rod 13.

[0032] A spring 18 is provided between the pressing plate 16 and the sleeve 11. One end of the spring 18 is fixedly connected to the side surface of the sleeve 11, and the other end of the spring 18 is fixedly connected to one side of the pressing plate 16.

[0033] When using the adjustable folding staircase in this blow molding machine, to raise or lower the platform, the end of the press plate 16 near the spring 18 is manually pressed. During pressing, the spring 18 is compressed, and the hinge block 15 causes the end of the press plate 16 near the insert rod 17 to move upwards. This movement of the press plate 16 drives the insert rod 17 to move synchronously until it moves out of the slot on the connecting rod 13, stopping the limiting of the connecting rod 13. Then, moving the connecting rod 13 outwards drives the double-sided gear 14 to move synchronously. The movement of the double-sided gear 14 drives the meshing gear 12 to rotate synchronously. The rotation of the gear 12 ultimately drives the sleeve... The sleeve 11 moves along the direction of the rack 10, thereby realizing the synchronous outward movement of the sleeve 11 and the connecting rod 13. Through the movement of the sleeve 11 and the connecting rod 13, the two first support frames 3 and the two second support frames 4 are rotated. After rotating to a suitable angle, the pressing plate 16 is manually released. The elastic potential energy of the spring 18 moves the end of the pressing plate 16 close to the spring 18 upward. Through the action of the hinge block 15, the end of the pressing plate 16 away from the spring 18 moves downward. The downward movement of the pressing plate 16 drives the insertion rod 17 to move downward synchronously until the insertion rod 17 is inserted into the new slot, and the connecting rod 13 is repositioned.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable folding staircase for a blow molding machine, characterized in that: The adjustable folding staircase for the blow molding machine includes a fixed platform (1), a plurality of support frame pins (2) rotatably mounted on the fixed platform (1), a plurality of first support frames (3) fixedly mounted on one of the support frame pins (2), a plurality of second support frames (4) fixedly mounted on the other support frame pin (2), a fixed plate (5) fixedly mounted on the first support frame (3) and the second support frame (4) at the end away from the support frame pin (2), a plurality of pedal pins (6) rotatably mounted between the two first support frames (3) and the two second support frames (4), a plurality of pedal bodies (7) rotatably mounted between the first support frames (3) and the second support frames (4) via the pedal pins (6), and elastic retaining rings (8) rotatably mounted on the pedal pins (6).

2. The adjustable folding staircase for a blow molding machine according to claim 1, characterized in that: The pedal pins (6) are arranged in a linear array on the first support frame (3). The pedal pins (6) pass through the first support frame (3) and the second support frame (4). One side of the elastic retaining ring (8) is fixedly connected to one side of the first support frame (3) and the second support frame (4).

3. The adjustable folding staircase for a blow molding machine according to claim 1, characterized in that: A sleeve rod (9) is hinged to one side of the second support frame (4). A functional groove is provided inside the sleeve rod (9). A rack (10) is fixedly connected to the inner wall of the functional groove. A sleeve (11) is slidably connected inside the functional groove. A gear (12) is rotatably connected to one end of the sleeve (11). The sleeve rod (9) meshes with the rack (10).

4. An adjustable folding staircase for a blow molding machine according to claim 3, characterized in that: A connecting rod (13) is slidably connected inside the functional slot. One end of the connecting rod (13) is fixedly connected to a double-sided toothed rod (14). The end of the connecting rod (13) away from the double-sided toothed rod (14) is hinged to one side of the first support frame (3). The rack (10) meshes with the double-sided toothed rod (14).

5. An adjustable folding staircase for a blow molding machine according to claim 4, characterized in that: A hinge block (15) is fixedly connected to the side surface of the sleeve (11), and a pressing plate (16) is rotatably connected inside the hinge block (15). A plug rod (17) is fixedly connected to one side of the pressing plate (16), and a plurality of slots for the plug rod (17) to be inserted are provided on the side surface of the connecting rod (13).

6. An adjustable folding staircase for a blow molding machine according to claim 5, characterized in that: A spring (18) is provided between the pressing plate (16) and the sleeve (11). One end of the spring (18) is fixedly connected to the side surface of the sleeve (11), and the other end of the spring (18) is fixedly connected to one side of the pressing plate (16).

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