Telescopic equipment

Abstract

The telescopic equipment comprises a telescopic ladder and a cart, the cart comprises a supporting plate, a second sliding groove is formed in the supporting plate, a U-shaped sliding block is arranged in the second sliding groove in a sliding mode, and a rotating hole is formed in the U-shaped sliding block; a rotating block is arranged at the lower end of the extension ladder, is positioned in the U-shaped sliding block, and is provided with a convex shaft positioned in the rotating hole; fixing rods are arranged on the supporting plate and located on the two sides of the U-shaped sliding block. The fixing rod and the U-shaped sliding block are jointly provided with a screw hole, a screw rod is connected into the screw hole in a threaded mode, and when the screw rod is fixed, the bottom of the U-shaped sliding block is flush with the groove bottom of the second sliding groove. The telescopic ladder is arranged on the cart, so that the occupied space of the telescopic ladder is effectively compressed, the storage space at ordinary times is saved, the working intensity of lifting and moving during manual operation is reduced, and the operation is more convenient and safer.

Description

Technical Field

[0001] This invention belongs to the field of telescopic equipment technology and relates to a telescopic device. Background Technology

[0002] In modern urban life, property management is becoming increasingly diverse and complex. To improve work efficiency and safety, property management companies often use various equipment, including trolleys and telescopic ladders. Trolleys are mainly used for moving goods, which can effectively save time and effort for manual handling. Telescopic ladders are mainly used for working at heights, making it easier for staff to carry out maintenance and repair work.

[0003] However, there are also some problems with using telescopic ladders. When the telescopic ladder needs to be moved to a distant place, additional manpower is required due to its structural characteristics, which increases the labor intensity of employees. At the same time, the telescopic ladder will occupy a lot of space when it is not in use, affecting the space utilization efficiency of the property, thus causing the limitations of this technical solution. Summary of the Invention

[0004] The purpose of this invention is to provide a telescopic device that can solve the problems mentioned in the background art.

[0005] According to the technical solution provided by the present invention: a telescopic device includes a telescopic ladder and a trolley. The trolley is provided with a support plate, and a second slide groove is provided on the support plate. A U-shaped slider is slidably arranged in the second slide groove, and a rotating hole is provided in the U-shaped slider. A rotating block is provided at the lower end of the telescopic ladder, and the rotating block is provided with a convex shaft located in the rotating hole. Fixed rods are provided on the support plate and on both sides of the U-shaped slider. The fixed rods and the U-shaped slider are provided with screw holes, and screws are screwed into the screw holes. When the screws are fixed, the bottom of the U-shaped slider is flush with the bottom of the second slide groove.

[0006] Preferably, the fixing rod is L-shaped, and each of the opposite ends of the fixing rod is provided with a limiting block. The limiting block contacts the upper end of the U-shaped slider to limit the upward movement of the U-shaped slider.

[0007] Preferably, the lower end of the rotating block is arc-shaped, and the lowest point of the arc is flush with the lower end of the U-shaped slider. Multiple anti-slip grooves are provided on both the lower arc of the rotating block and the lower end of the U-shaped slider.

[0008] Preferably, the trolley also includes a push rod and a reinforcing rod; the support plate is provided with four fixed rings, the push rod is provided in the rings on both sides, and the reinforcing rod is provided in the two rings in the middle, and the other end of the reinforcing rod is connected to the push rod to form support for the push rod.

[0009] Preferably, the telescopic ladder includes multiple ladder bars, with multiple extendable ladder bars arranged sequentially above the bottom ladder bar, and a step provided near the top of every two opposing ladder bars; the inner walls of the ladder bars below the top ladder bar are symmetrically fitted with limiting grooves, and limiting sliders are slidably installed in the limiting grooves. Both ends of the limiting sliders are connected to the ladder bars, so that each ladder bar will not be pulled out when it is extended.

[0010] Preferably, each of the ladder bars above the lowest ladder bar has a partition inside, which divides the ladder bar into an upper part and a lower part; the lower part of the ladder bar is always located inside the corresponding lower ladder bar.

[0011] Preferably, each ladder bar has a round hole, and a spring telescopic rod is provided inside the lower part of the ladder bar. The spring telescopic rod has a pressure block. When the upper ladder bar is stretched, the pressure block is located in the round hole to fix the upper ladder bar.

[0012] Preferably, a first sliding groove is provided on each of the ladder bars below the uppermost ladder bar, and a connecting rod is symmetrically provided at the lower end of the partition. A sliding rod is connected to the connecting rod, and the sliding rod extends out of the first sliding groove, with a baffle at the extended end.

[0013] Preferably, push grooves are symmetrically provided on the pedals below the uppermost pedal; a first push plate is fixed on the middle pedal. When the ladder bar is stretched and moved down, the first push plate is pushed into the corresponding push groove below and the compression block moves inward so that the upper ladder bar can retract into the lower ladder bar, thereby forming a folding of the ladder bar.

[0014] Preferably, screws are symmetrically screwed onto the uppermost step, and a second push plate is screwed onto the lower end of the screw. The second push plate is L-shaped and forms a sliding connection with the uppermost ladder rod.

[0015] The telescopic device provided by this invention has the following advantages:

[0016] 1. By mounting the telescopic ladder on a trolley, the space occupied by the telescopic ladder is effectively reduced, which not only saves storage space but also reduces the workload of lifting and moving it manually, making operation more convenient and safer. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention.

[0018] Figure 2 This is a cutaway schematic diagram of the present invention.

[0019] Figure 3 This is an exploded view of the present invention.

[0020] Figure 4 This is a perspective view of the telescopic ladder of the present invention.

[0021] Figure 5 This is a schematic diagram of the ladder rod stacking of the present invention.

[0022] Figure 6 This is a cross-sectional view of the ladder rod of the present invention.

[0023] Figure 7 yes Figure 6 An enlarged schematic diagram of the structure of part A.

[0024] Figure 8 This is a schematic diagram of the cooperation between the limiting groove and the limiting slider of the present invention.

[0025] Figure 9 This is a schematic diagram of the ladder rod side of the present invention.

[0026] In the diagram: Screw 12; Ladder rod 13; Pedal 14; Partition 15; First slide groove 16; Push groove 17; First push plate 18; Round hole 19; Limiting slide groove 2; Limiting slider 21; Second push plate 22; Spring telescopic rod 3; Pressure block 31; Connecting rod 4; Slide rod 41; Baffle 42; Push rod 5; Second slide groove 51; Support plate 52; Reinforcing rod 53; U-shaped slider 6; Rotating block 61; Anti-slip groove 62; Rotating hole 63; Fixing rod 64; Limiting block 65; Screw 66; Screw hole 67. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] like Figure 1-8As shown, the present invention is a telescopic device, including a telescopic ladder and a trolley. The trolley is provided with a support plate 52, and a second slide groove 51 is provided on the support plate 52. A U-shaped slider 6 is slidably arranged in the second slide groove 51, and a rotating hole 63 is provided in the U-shaped slider 6. A rotating block 61 is provided at the lower end of the telescopic ladder. The rotating block 61 is located in the U-shaped slider 6, and the rotating block 61 is provided with a convex shaft located in the rotating hole 63. Fixing rods 64 are provided on the support plate 52 and on both sides of the U-shaped slider 6. The fixing rods 64 and the U-shaped slider 6 are provided with screw holes 67. A screw rod 66 is screwed into the screw hole 67. When the screw rod 66 is fixed, the bottom of the U-shaped slider 6 is flush with the bottom of the second slide groove 51.

[0030] By mounting the telescopic ladder on a trolley, the space occupied by the telescopic ladder is effectively reduced, which not only saves storage space but also reduces the workload of lifting and moving it manually, making the operation more convenient and safer.

[0031] When the telescopic ladder is needed, first rotate screw 66 to separate screw 66 from U-shaped slider 6. Under the action of gravity, U-shaped slider 6 drives the telescopic ladder to move downward, so that the bottom of U-shaped slider 6 contacts the telescopic ladder and the ground to form support. Then rotate the telescopic ladder to make the upper end of the telescopic ladder contact the wall to form support.

[0032] Preferably, the fixing rod 64 is L-shaped, and the opposite ends of the fixing rod 64 are respectively provided with limiting blocks 65. The limiting blocks 65 contact the upper end of the U-shaped slider 6 to limit the upward movement of the U-shaped slider 6. When the U-shaped slider 6 moves upward, when the upper end of the U-shaped slider 6 abuts against the limiting block 65, the screw hole 67 on the U-shaped slider 6 and the screw hole 67 on the fixing rod 64 are on the same vertical line, so as to facilitate the connection of the screw 66 and ensure quick connection without the need to repeatedly adjust the U-shaped slider 6.

[0033] Preferably, the lower end of the rotating block 61 is arc-shaped, and the lowest point of the arc is flush with the lower end of the U-shaped slider 6. Multiple anti-slip grooves 62 are provided on both the lower arc of the rotating block 61 and the lower end of the U-shaped slider 6 to increase friction, ensure the stability of the rotating block 61 and the U-shaped slider 6 in contact with the ground, and improve the stability of the telescopic ladder during telescopic use.

[0034] Preferably, the trolley also includes a push rod 5 and a reinforcing rod 53; the support plate 52 is provided with four rings fixedly arranged, the push rod 5 is provided in the rings on both sides, and the reinforcing rod 53 is provided in the two rings in the middle respectively. The other end of the reinforcing rod 53 is connected to the push rod 5 to form support for the push rod 5; thus ensuring the strength of the push rod 5.

[0035] Preferably, the telescopic ladder includes multiple ladder bars 13. Above the bottom ladder bar 13, multiple stretchable ladder bars 13 are arranged in sequence. A step 14 is provided near the upper end of every two opposing ladder bars 13. The inner walls of the ladder bars 13 below the top ladder bar 13 are symmetrically equipped with limiting grooves 2. Limiting sliders 21 are slidably arranged in the limiting grooves 2. Both ends of the limiting sliders 21 are connected to the ladder bars 13, so that each ladder bar 13 will not be pulled out when it is stretched.

[0036] The limiting groove 2 and the slider 21 ensure that each ladder section will not be pulled out during extension, thus maintaining the stability of the entire ladder and preventing the ladder section 13 from accidentally sliding out during use. This effectively forms a constraint, thereby avoiding accidental slippage of the telescopic ladder during handling or use and significantly improving the safety of the telescopic ladder.

[0037] Preferably, each of the ladder rods 13 above the lowest ladder rod 13 is provided with a partition 15, which divides the ladder rod 13 into an upper part and a lower part; the lower part of the ladder rod is always located inside the corresponding lower ladder rod 13; the partition 15 provides support for the bottom of the upper ladder rod 13, and the upper end surface of the partition 15 is also provided with a rubber pad to reduce the impact of the upper ladder rod 13 on the partition 15.

[0038] Preferably, each of the middle ladder bars 13 has two circular holes 19 distributed vertically. The bottom ladder bar 13 has a circular hole 19 near its upper end face, and the top ladder bar 13 has a circular hole 19 near its lower end face. A spring telescopic rod 3 is provided inside the lower part of the ladder bar, and a pressure block 31 is provided on the spring telescopic rod 3. The pressure block 31 is frustoconical. When the upper ladder bar 13 is stretched, the pressure block 31 is located in the circular hole 19 to fix the upper ladder bar 13.

[0039] When the upper ladder rod 13 is pulled, and the limiting slider 21 abuts against the upper end of the limiting groove 2, the circular holes 19 below the ladder rod 13 are aligned with the circular holes 19 above the other ladder rod 13, and are on the same vertical line. The spring telescopic rod 3 is initially in a compressed state. When the circular holes 19 are aligned, the spring telescopic rod 3 returns to its original state, thereby driving the pressure block 31 to move relative to each other. This causes the end of the pressure block 31 to enter the two aligned circular holes 19, thus forming a fixed connection between the two ladder rods 13. This ensures that the ladder rod 13 will not move downward after being stretched, thus forming the stability of the ladder rod 13.

[0040] Preferably, the ladder rods 13 below the uppermost ladder rod 13 are provided with first sliding grooves 16, the lower end of the partition plate 15 is symmetrically provided with connecting rods 4, and the connecting rods 4 are connected to sliding rods 41. The sliding rods 41 extend out of the first sliding grooves 16, and the extended end is provided with a baffle 42, which is arc-shaped.

[0041] When the extension ladder rod 13 moves, it pulls down the partition 15 to move, which in turn drives the connecting rod 4, the slide rod 41 and the baffle 42 to move. The slide rod 41, guided by the first slide groove 16, ensures the straightness and stability of the movement process.

[0042] The extended end of the slide bar 41 is provided with a baffle 42. The baffle 42 can block and protect the pressure block 31 during movement. When the pressure block 31 is inserted into the round hole 19, the baffle 42 will automatically wrap around the extended end of the pressure block 31, which can effectively prevent the pressure block 31 from being accidentally touched or displaced during use, thus enhancing the safety of use.

[0043] Preferably, push grooves 17 are symmetrically provided on the pedals 14 below the uppermost pedal 14; a first push plate 18 is fixed on the pedals 14 in the middle part. When the ladder rod 13 is stretched and moved down, the first push plate 18 is pushed into the corresponding push groove 17 below and the compression block 31 moves inward so that the upper ladder rod 13 can retract into the lower ladder rod 13, thereby forming a stack of ladder rods 13.

[0044] A screw rod 12 is symmetrically screwed onto the uppermost step 14. A second push plate 22 is screwed onto the lower end of the screw rod 12. The second push plate 22 is L-shaped and forms a sliding connection with the uppermost ladder rod 13.

[0045] When it is necessary to store the ladder rod 13, rotate the screw 12 to separate the screw 12 from the second push plate 22. Then, pull the second push plate 22 down so that the lower end of the second push plate 22 passes through the push groove 17 and contacts the end of the uppermost pressure block 31. Press the second push plate 22 down, and the second push plate 22 applies pressure to the uppermost pressure block 31, causing the pressure block 31 to move inward and compress the spring telescopic rod 3, so that the pressure block 31 is compressed into the interior of the connected ladder rod 13. At this time, the uppermost ladder rod 13 moves downward under gravity, and at the same time, with the help of the user's pulling force, it moves the uppermost ladder rod 13 downward. As the uppermost ladder rod 13 moves downward, the corresponding first push plate 18 also moves downward synchronously and passes through the push groove 17 below it in sequence, so that the lower pressure block 31 is compressed in sequence, thereby forming the storage of multiple ladder rods 13.

[0046] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A telescopic device, characterized in that, The system includes a telescopic ladder and a trolley. The trolley is equipped with a support plate (52). The support plate (52) has a second slide groove (51). A U-shaped slider (6) is slidably installed in the second slide groove (51). A rotating hole (63) is installed in the U-shaped slider (6). The lower end of the telescopic ladder is equipped with a rotating block (61). The rotating block (61) is located in the U-shaped slider (6). The rotating block (61) is equipped with a convex shaft located in the rotating hole (63). The support plate (52) is equipped with fixing rods (64) on both sides of the U-shaped slider (6). The fixing rods (64) and the U-shaped slider (6) are equipped with screw holes (67). A screw rod (66) is screwed into the screw hole (67). When the screw rod (66) is fixed, the bottom of the U-shaped slider (6) is flush with the bottom of the second slide groove (51).

2. A telescopic device as claimed in claim 1, characterized in that: The fixing rod (64) is L-shaped, and the opposite ends of the fixing rod (64) are respectively provided with limiting blocks (65). The limiting blocks (65) contact the upper end of the U-shaped slider (6) to limit the upward movement of the U-shaped slider (6).

3. A telescopic device as claimed in claim 2, characterized in that: The lower end of the rotating block (61) is arc-shaped, and the lowest point of the arc is flush with the lower end of the U-shaped slider (6). Multiple anti-slip grooves (62) are provided on the lower arc of the rotating block (61) and the lower end of the U-shaped slider (6).

4. A telescopic device as claimed in claim 1, characterized in that: The trolley also includes a push rod (5) and a reinforcing rod (53); the support plate (52) is provided with four fixed rings, the push rod (5) is provided in the rings on both sides, and the reinforcing rod (53) is provided in the two rings in the middle. The other end of the reinforcing rod (53) is connected to the push rod (5) to form a support for the push rod (5).

5. A telescopic device as claimed in claim 1, characterized in that: The telescopic ladder includes multiple ladder bars (13). Above the bottom ladder bar (13), there are multiple sections of extendable ladder bars (13). Each pair of opposite ladder bars (13) has a step (14) near the top. The inner walls of the ladder bars (13) below the top ladder bar (13) are symmetrically fitted with limiting grooves (2). A limiting slider (21) is slidably installed in the limiting groove (2). Both ends of the limiting slider (21) are connected to the ladder bars (13), so that each section of ladder bar (13) will not be pulled out when it is stretched.

6. A telescopic ladder as claimed in claim 1, characterized in that: The interior of each of the ladder rods (13) above the lowest ladder rod (13) is provided with a partition (15), which divides the ladder rod (13) into an upper part and a lower part; the lower part of the ladder rod is always located inside the corresponding lower ladder rod (13).

7. A telescopic ladder as claimed in claim 6, characterized in that: All ladder rods (13) are provided with round holes (19). A spring telescopic rod (3) is provided inside the lower part of the ladder rod. A pressure block (31) is provided on the spring telescopic rod (3). When the upper ladder rod (13) is stretched, the pressure block (31) is located in the round hole (19) to fix the upper ladder rod (13).

8. A telescopic ladder as claimed in claim 7, characterized in that: The ladder rods (13) below the topmost ladder rod (13) are all provided with first sliding grooves (16). The lower end of the partition (15) is symmetrically provided with connecting rods (4). The connecting rods (4) are connected to sliding rods (41). The sliding rods (41) extend out of the first sliding grooves (16) and are provided with baffles (42) at the extended end.

9. A telescopic ladder as claimed in claim 8, characterized in that: Push grooves (17) are symmetrically provided on the pedals (14) below the uppermost pedal (14); the first push plate (18) is fixed on the pedals (14) in the middle part. When the ladder rod (13) moves down, the first push plate (18) is pushed into the corresponding push groove (17) below and the compression block (31) moves inward so that the upper ladder rod (13) can retract into the lower ladder rod (13), thereby forming a fold of the ladder rod (13).

10. A telescopic ladder as claimed in claim 9, characterized in that: A screw rod (12) is symmetrically screwed onto the uppermost step (14). A second push plate (22) is screwed onto the lower end of the screw rod (12). The second push plate (22) is L-shaped and forms a sliding connection with the uppermost ladder rod (13).

Images