Telescopic escalator

Abstract

The utility model discloses a telescopic escalator, which relates to the technical field of escalators, and comprises two telescopic ladder main columns, the opposite surfaces of the two telescopic ladder main columns are fixedly connected with three treading support components I, and the rear surfaces of the two telescopic ladder main columns are connected with telescopic components in a sliding manner; the upper surfaces of the two telescopic assemblies are fixedly connected with installation limiting assemblies. According to the telescopic ladder, the auxiliary columns of the telescopic ladder are fixed to the edge of a ship under the action of the second fixing blocks and the U-shaped clamping plates, then the main columns of the telescopic ladder move downwards under the action of the pull rods, the clamping blocks, the handle and the first fixing blocks, when the main columns move to the bottom, the pull rods are loosened, the clamping blocks move backwards under the action of the first springs, and then the main columns of the telescopic ladder move downwards. Therefore, the clamping block is clamped with the inner cavity of the lower part of the limiting sliding column, and the main column of the extension ladder is fixed after being unfolded, so that the aim of quickly unfolding and fixing during use is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of escalators, in particular to a telescopic escalator. Background Art

[0002] A telescopic ladder is a ladder that can be stretched and shortened like a fishing rod. It is divided into two types: an engineering telescopic ladder and a bamboo telescopic ladder. It is very convenient to carry and store and can be placed in a home closet, study, under the bed or in the trunk of a car.

[0003] Chinese patent document CN219008058U discloses a telescopic escalator for yachts and ships, which solves the problems of being unable to retract and insufficient protective measures in the prior art, including a ladder body, wherein a retractable ladder and two symmetrically arranged pull rods are slidably mounted inside the ladder body, respectively, wherein the retractable ladder and the interior of the ladder body are both fixedly connected with a plurality of symmetrically arranged pedals by bolts, and the tops of the two pull rods are commonly fixedly connected with a connecting rod by bolts, and the connecting rod is slidably mounted inside the ladder body, and a top block is fixedly connected to the connecting rod by bolts, and through the arrangement of structures such as limit blocks and limit grooves, when the escalator needs to be extended, it is only necessary to pull down the retractable ladder slidably connected to the inside of the ladder body, and when it is pulled to the bottom, the two limit blocks slidably connected to the inside of the retractable ladder will pop out into the two limit grooves opened inside the ladder body, thereby achieving the effect of convenient retraction.

[0004] The existing technology has the following problems:

[0005] The retractable escalator cannot be quickly unfolded and fixed when in use, which makes it inconvenient to use. It is also not easy to fix it to the hull, which affects its use. In addition, the retractable escalator is prone to collide with the hull when in use, causing damage, and the user cannot move well when climbing. Utility Model Content

[0006] The utility model provides a telescopic escalator to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A telescopic escalator comprises two telescopic ladder main columns, three pedal support assemblies 1 are fixedly connected to the opposite surfaces of the two telescopic ladder main columns, telescopic assemblies are slidably connected to the rear sides of the two telescopic ladder main columns, installation limiting assemblies are fixedly connected to the upper surfaces of the two telescopic assemblies, two pedal support assemblies 2 are fixedly connected to the opposite surfaces of the two telescopic assemblies, and fixing assemblies are fixedly connected to the upper parts of the front sides of the two telescopic ladder main columns.

[0009] Preferably, the first stepping support assembly includes two support frames. The opposite surfaces of the two support frames are respectively fixedly connected to the opposite surfaces of the two main telescopic ladder columns. Reinforcing U-shaped plates are fixedly installed on the inner walls of the two support frames and are located between the two main telescopic ladder columns. An anti-slip stepping plate is fixedly connected to the upper surface of the middle part of the reinforcing U-shaped plate and is located between the two support frames. An arc-shaped pull rod is fixedly connected to the inner wall of the lower part of the reinforcing U-shaped plate.

[0010] Preferably, the two telescopic assemblies include two limit sliding columns. The outer walls of the two limit sliding columns are respectively slidably connected to the inner walls of the two main telescopic ladder columns. Telescopic ladder sub-columns are fixedly connected to the rear surfaces of the two limit sliding columns, and the two telescopic ladder sub-columns are respectively located behind the two main telescopic ladder columns.

[0011] Preferably, the fixing assembly includes a first fixing block. The rear surface of the first fixing block is fixedly connected to the front surface of the main telescopic ladder column. Handles are fixedly connected to the upper and lower sides of the first fixing block. A clamping block is movably sleeved in the inner wall of the first fixing block. A pull rod is fixedly connected to the middle part of the front surface of the clamping block. The outer wall of the rear part of the pull rod is movably sleeved in the inner wall of the first fixing block. The fixing rod of the front part of the pull rod is located between the first fixing block and the handle. The outer wall of the clamping block is slidably connected to the inner cavity of the main telescopic ladder column. The rear part of the outer wall of the clamping block is clamped with the inner cavity of the limit sliding column. Springs are fixedly connected to the upper and lower parts of the front surface of the clamping block, and the two springs are respectively located on the upper and lower sides of the pull rod. The front surfaces of the two springs are respectively fixedly connected to the inner wall of the first fixing block.

[0012] Preferably, the installation limiting assembly includes a second fixing block. The lower surface of the second fixing block is fixedly connected to the upper surface of the telescopic ladder sub-column. A U-shaped clamping plate is slidably connected to the inner wall of the second fixing block. A limit sliding rod is movably sleeved in the inner cavity of the front part of the U-shaped clamping plate. The rear surface of the limit sliding rod is fixedly connected to the inner wall of the second fixing block. A spring is movably sleeved on the outer wall of the limit sliding rod. The front and rear sides of the spring are respectively fixedly connected to the opposite surfaces of the front part of the U-shaped clamping plate and the inner wall of the second fixing block.

[0013] Preferably, rubber pads are fixedly connected to the rear surfaces of the two telescopic ladder sub-columns. A rubber pad is fixedly connected to the rear surface of the second fixing block. The rear surface of the rubber pad abuts against the inner wall of the rear part of the U-shaped clamping plate.

[0014] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model compared with the prior art is:

[0015] 1. The utility model provides a telescopic ladder. Through the action of the U-shaped clamping plate, the limiting slide rod and the second spring, the inner wall of the rear part of the U-shaped clamping plate is clamped with the edge of the hull, and then it is fixed by screws. Through the action of the second fixing block and the U-shaped clamping plate, the telescopic ladder secondary column is fixed to the ship's side. Then, under the action of the pull rod, the clamping block, the handle and the first fixing block, the telescopic ladder main column moves downward. When it moves to the bottom, the pull rod is released, and the clamping block moves backward under the action of the two first springs, so that the clamping block is clamped with the inner cavity of the lower part of the limiting slide column, thereby fixing the telescopic ladder main column after it is unfolded, so as to achieve the purpose of being convenient to quickly unfold and fix during use.

[0016] 2. The utility model provides a telescopic ladder. Through the action of the first rubber pad, the telescopic ladder secondary column can have a certain buffering and protection during use, so as to prevent collision with the hull. At the same time, when not in use, it can also play a role in supporting and protecting, thereby improving the service life. At the same time, through the action of the anti-slip stepping pedal, it is convenient for the user to step on and prevent slipping, and when climbing, the user can also hold the arc-shaped pull rod to improve the stability during the climbing process. At the same time, because the arc-shaped pull rod is arranged between the two support frames, it is better for the user to grasp and apply force, thereby reducing the risk of the user falling and improving the use safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the utility model;

[0018] Figure 2 is an unfolded structural schematic diagram of the utility model;

[0019] Figure 3 is a side cross-sectional structural schematic diagram of the telescopic assembly and the telescopic ladder main column of the utility model;

[0020] Figure 4 is the utility model Figure 3 the enlarged structural schematic diagram at A in;

[0021] Figure 5 is a structural schematic diagram of the first stepping and supporting assembly of the utility model;

[0022] Figure 6 is a side cross-sectional structural schematic diagram of the fixing assembly of the utility model;

[0023] Figure 7 is a side structural schematic diagram of the telescopic assembly of the utility model;

[0024] Figure 8 is a side cross-sectional structural schematic diagram of the installation limiting assembly of the utility model.

[0025] In the figure: 1. Main column of the retractable ladder; 2. First stepping support assembly; 3. Retractable assembly; 4. Fixing assembly; 5. Second stepping support assembly; 6. Installation limiting assembly; 21. Support frame; 22. Reinforcing U-shaped plate; 23. Anti-slip stepping pedal; 24. Arc-shaped pull rod; 31. Sub-column of the retractable ladder; 32. Limit sliding column; 33. First rubber pad; 41. First fixing block; 42. Handle; 43. Clamping block; 44. Pull rod; 45. First spring; 61. Second fixing block; 62. U-shaped clamping plate; 63. Limit sliding rod; 64. Second spring; 65. Second rubber pad. Detailed implementation mode

[0026] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation modes.

[0027] As Figure 1 、 Figure 2 As shown in the figure, a retractable ladder includes two main columns 1 of the retractable ladder. Three first stepping support assemblies 2 are fixedly connected to the opposite surfaces of the two main columns 1 of the retractable ladder. The back surfaces of the two main columns 1 of the retractable ladder are both slidably connected with retractable assemblies 3. The upper surfaces of the two retractable assemblies 3 are both fixedly connected with installation limiting assemblies 6. Two second stepping support assemblies 5 are fixedly connected to the opposite surfaces of the two retractable assemblies 3. The upper parts of the front surfaces of the two main columns 1 of the retractable ladder are both fixedly connected with fixing assemblies 4;

[0028] During use, first fix the device through the two installation limiting assemblies 6, and then pull the two fixing assemblies 4 to make the two main columns 1 of the retractable ladder move downward to the right and downward in the two retractable assemblies 3. When moving to the bottom of the retractable assemblies 3, under the action of the two fixing assemblies 4, fix the two main columns 1 of the retractable ladder and the two retractable assemblies 3, so as to form a climbing channel between the three first stepping support assemblies 2 and the two second stepping support assemblies 5. Subsequently, climb and move through the first stepping support assembly 2 and the second stepping support assembly 5.

[0029] As Figure 3 As shown in the figure, the two retractable assemblies 3 include two limit sliding columns 32. The outer walls of the two limit sliding columns 32 are respectively slidably connected with the inner walls of the two main columns 1 of the retractable ladder. The back surfaces of the two limit sliding columns 32 are both fixedly connected with sub-columns 31 of the retractable ladder, and the two sub-columns 31 of the retractable ladder are respectively located behind the two main columns 1 of the retractable ladder;

[0030] Through the action of the two limit sliding columns 32, the two sub-columns 31 of the retractable ladder can stably move up and down behind the two main columns 1 of the retractable ladder, so as to facilitate unfolding during use.

[0031] As Figure 4 、 Figure 5As shown in the figure, the fixing component 4 includes a first fixing block 41. The rear surface of the first fixing block 41 is fixedly connected to the front surface of the main column 1 of the retractable ladder. On the upper and lower sides of the first fixing block 41, there are fixedly connected handles 42. Inside the inner wall of the first fixing block 41, there is a movable socket of a clamping block 43. In the middle of the front surface of the clamping block 43, there is a fixedly connected pull rod 44. The outer wall of the rear part of the pull rod 44 is movably sleeved with the inner wall of the first fixing block 41. The fixed rod of the front part of the pull rod 44 is located between the first fixing block 41 and the handle 42. The outer wall of the clamping block 43 is slidably connected to the inner cavity of the main column 1 of the retractable ladder. The rear part of the outer wall of the clamping block 43 is clamped with the inner cavity of the limit sliding column 32. On the upper and lower parts of the front surface of the clamping block 43, there are fixedly connected first springs 45, and the two first springs 45 are respectively located on the upper and lower sides of the pull rod 44. The front surfaces of the two first springs 45 are respectively fixedly connected to the inner wall of the first fixing block 41;

[0032] While holding the handle 42, pull the pull rod 44 to move the clamping block 43 forward, so that it moves away from the inner cavity of the limit sliding column 32. At this time, move the handle 42 downward to move the main column 1 of the retractable ladder downward. When it drives to the bottom, release the pull rod 44 to make the clamping block 43 move backward under the action of the two first springs 45, so that the clamping block 43 is clamped with the inner cavity of the lower part of the limit sliding column 32, thereby fixing the main column 1 of the retractable ladder after it is unfolded, so as to achieve the purpose of being convenient for quick unfolding and fixing during use.

[0033] As Figure 6 As shown in the figure, the first stepping and supporting component 2 includes two support frames 21. The opposite surfaces of the two support frames 21 are respectively fixedly connected to the opposite surfaces of the two main columns 1 of the retractable ladder. Inside the inner walls of the two support frames 21, there is fixedly installed a reinforcing U-shaped plate 22, and the reinforcing U-shaped plate 22 is located between the two main columns 1 of the retractable ladder. On the upper surface of the middle part of the reinforcing U-shaped plate 22, there is a fixedly connected anti-slip stepping plate 23, and the anti-slip stepping plate 23 is located between the two support frames 21. Inside the lower part of the inner wall of the reinforcing U-shaped plate 22, there is a fixedly connected arc-shaped pull rod 24;

[0034] During use, due to the action of the anti-slip stepping plate 23, it is convenient for the user to step on and prevent slipping. At the same time, when climbing, the user can also hold the arc-shaped pull rod 24 to improve the stability during climbing. At the same time, because the arc-shaped pull rod 24 is arranged between the two support frames 21, it is better for the user to grip and receive force, thereby reducing the risk of the user falling and improving the use safety.

[0035] As Figure 7 As shown in the figure, rubber pads 33 are fixedly connected to the rear surfaces of the two auxiliary columns 31 of the retractable ladder. A rubber pad 65 is fixedly connected to the rear surface of the second fixing block 61. The rear surface of the rubber pad 65 abuts against the inner wall of the rear part of the U-shaped clamping plate 62;

[0036] Through the action of the rubber pad 33, the telescopic ladder secondary column 31 can have a certain buffering protection during use, thus preventing collision with the hull. At the same time, when not in use, it can also play a role in support and protection, thereby improving the service life.

[0037] As Figure 8 shown, the installation limiting component 6 includes a second fixing block 61. The lower surface of the second fixing block 61 is fixedly connected to the upper surface of the telescopic ladder secondary column 31. A U-shaped clamping plate 62 is slidably connected to the inner wall of the second fixing block 61. A limiting sliding rod 63 is movably sleeved in the inner cavity of the front part of the U-shaped clamping plate 62. The rear of the limiting sliding rod 63 is fixedly connected to the inner wall of the second fixing block 61. A second spring 64 is movably sleeved on the outer wall of the limiting sliding rod 63. The front and rear sides of the second spring 64 are respectively fixedly connected to the opposite surfaces of the front part of the U-shaped clamping plate 62 and the inner wall of the second fixing block 61;

[0038] By pulling the pull rod on the upper part of the U-shaped clamping plate 62, the U-shaped clamping plate 62 moves backward under the action of the limiting sliding rod 63. Then, the U-shaped clamping plate 62 is clamped to the edge of the hull. At this time, release the U-shaped clamping plate 62, and the U-shaped clamping plate 62 moves forward under the action of the second spring 64, so that the inner wall of the rear part of the U-shaped clamping plate 62 is clamped to the edge of the hull. Then, fix it with screws. Through the action of the second fixing block 61 and the U-shaped clamping plate 62, the telescopic ladder secondary column 31 is fixed to the ship's side, thus facilitating use.

[0039] The working principle of the present utility model: During use, first pull the pull rod on the upper part of the U-shaped clamping plate 62, so that the U-shaped clamping plate 62 moves backward under the action of the limiting sliding rod 63. Then, the U-shaped clamping plate 62 is clamped to the edge of the hull. At this time, release the U-shaped clamping plate 62, and the U-shaped clamping plate 62 moves forward under the action of the second spring 64, so that the inner wall of the rear part of the U-shaped clamping plate 62 is clamped to the edge of the hull. Then, fix it with screws, so that the telescopic ladder secondary column 31 is fixed to the ship's side. Then, while holding the handle 42, pull the pull rod 44, so that the clamping block 43 moves forward, so that it moves away from the inner cavity of the limiting sliding column 32. At this time, move the handle 42 downward, and the telescopic ladder main column 1 moves downward under the action of the limiting sliding column 32. When moving to the bottom, release the pull rod 44, and the clamping block 43 moves backward under the action of the two first springs 45, so that the clamping block 43 is clamped to the inner cavity of the lower part of the limiting sliding column 32, so as to fix the telescopic ladder main column 1 after unfolding to the lower part of the telescopic ladder secondary column 31, so that an upward climbing passage is formed between the three first pedal support assemblies 2 and the two second pedal support assemblies 5. Subsequently, climb and move through the anti-slip pedal 23 and the arc-shaped pull rod 24.

[0040] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification are only used to illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A retractable escalator, comprising two telescopic ladder main columns (1), characterized in that: Three stepping support components one (2) are fixedly connected to the opposite surfaces of the two telescopic ladder main columns (1). Telescopic components (3) are slidably connected to the rear surfaces of the two telescopic ladder main columns (1). Mounting restriction components (6) are fixedly connected to the upper surfaces of the two telescopic components (3). Two stepping support components two (5) are fixedly connected to the opposite surfaces of the two telescopic components (3). Fixed components (4) are fixedly connected to the upper parts of the fronts of the two telescopic ladder main columns (1).

2. The retractable escalator according to claim 1, wherein: The stepping support component one (2) includes two support frames (21). The opposite surfaces of the two support frames (21) are respectively fixedly connected to the opposite surfaces of the two telescopic ladder main columns (1). A reinforcing U-shaped plate (22) is fixedly installed on the inner walls of the two support frames (21) and the reinforcing U-shaped plate (22) is located between the two telescopic ladder main columns (1). An anti-slip stepping plate (23) is fixedly connected to the upper surface of the middle part of the reinforcing U-shaped plate (22) and the anti-slip stepping plate (23) is located between the two support frames (21). An arc-shaped pull rod (24) is fixedly connected to the inner wall of the lower part of the reinforcing U-shaped plate (22).

3. A retractable escalator according to claim 1, characterized in that: The two telescopic components (3) include two limit sliding columns (32). The outer walls of the two limit sliding columns (32) are respectively slidably connected to the inner walls of the two telescopic ladder main columns (1). Telescopic ladder sub-columns (31) are fixedly connected to the rear surfaces of the two limit sliding columns (32) and the two telescopic ladder sub-columns (31) are respectively located behind the two telescopic ladder main columns (1).

4. The retractable escalator according to claim 3, wherein: The fixed component (4) includes a first fixed block (41). The rear surface of the first fixed block (41) is fixedly connected to the front surface of the telescopic ladder main column (1). Handles (42) are fixedly connected to the upper and lower sides of the first fixed block (41). A clamping block (43) is movably sleeved on the inner wall of the first fixed block (41). A pull rod (44) is fixedly connected to the middle of the front surface of the clamping block (43). The outer wall of the rear part of the pull rod (44) is movably sleeved on the inner wall of the first fixed block (41). The fixed rod of the front part of the pull rod (44) is located between the first fixed block (41) and the handle (42). The outer wall of the clamping block (43) is slidably connected to the inner cavity of the telescopic ladder main column (1). The rear part of the outer wall of the clamping block (43) is clamped with the inner cavity of the limit sliding column (32). First springs (45) are fixedly connected to the upper and lower parts of the front surface of the clamping block (43) and the two first springs (45) are respectively located on the upper and lower sides of the pull rod (44). The fronts of the two first springs (45) are respectively fixedly connected to the inner wall of the first fixed block (41).

5. The retractable escalator according to claim 3, characterized in that: The installation limiting component (6) includes a second fixed block (61). The lower surface of the second fixed block (61) is fixedly connected to the upper surface of the telescopic ladder secondary column (31). A U-shaped clamping plate (62) is slidably connected to the inner wall of the second fixed block (61). A limiting slide rod (63) is movably sleeved in the inner cavity of the front part of the U-shaped clamping plate (62). The rear of the limiting slide rod (63) is fixedly connected to the inner wall of the second fixed block (61). A second spring (64) is movably sleeved on the outer wall of the limiting slide rod (63). The front and rear sides of the second spring (64) are respectively fixedly connected to the opposite surfaces of the front part of the U-shaped clamping plate (62) and the inner wall of the second fixed block (61).

6. A retractable escalator according to claim 5, characterized in that: Rubber pads one (33) are fixedly connected to the rear of both of the telescopic ladder secondary columns (31). A rubber pad two (65) is fixedly connected to the rear of the second fixed block (61). The rear of the rubber pad two (65) abuts against the inner wall of the rear part of the U-shaped clamping plate (62).

Images