Elevator

Abstract

The invention provides an elevator. The elevator comprises two self-liftable ladders and a locking mechanism, wherein the tops of the two ladders are rotatably connected, and the locking mechanism is arranged at the bottoms of the two ladders and used for locking the two ladders when the two ladders rotate to a required angle. According to the elevator, the tops of the two ladders are rotationally connected, the two ladders are locked by the locking mechanism when the two ladders rotate to the required angle, so that the two ladders are kept stable, the overall stability of the elevator is improved, the situation that the elevator inclines or is not stable is avoided, the safety of operators is guaranteed, and in addition, the safety of the operators is improved. The two ladders can be used for an operator to climb and can be conveniently used by the operator, meanwhile, each ladder can ascend and descend, the overall height of the elevator can be adjusted, and the heights of the two ladders can be adjusted according to requirements, so that the elevator can meet various different requirements, and the use range is expanded.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a lift. Background Art

[0002] Housing construction refers to all kinds of housing construction and its ancillary facilities and the supporting lines, pipelines, equipment installation projects and indoor and outdoor decoration projects. "Housing construction" refers to projects with roofs, beams, columns, walls, foundations and can form internal spaces to meet people's needs for production, residence, study, public activities, etc. In the process of housing construction, safety elevators will be used in large quantities. Safety elevators are a kind of ladder that can be freely raised and lowered and can change height as needed. With the development of society, the application of safety elevators has become more and more extensive. Therefore, the demand for safety elevators is growing. However, the existing safety elevators are only set on one side, so it is easy to tilt or become unstable, which reduces the stability of the safety elevator and makes it difficult to ensure the safety of operators when using it. Summary of the invention

[0003] In view of this, the present invention proposes a lift, aiming to solve the problem of poor stability caused by the single-sided setting of the safety lift in the prior art.

[0004] The present invention provides an elevator, which comprises: two ladders which can be raised and lowered by themselves and a locking mechanism; wherein the tops of the two ladders are rotatably connected, and the locking mechanism is arranged at the bottoms of the two ladders for locking the two ladders when the two ladders are rotated to a desired angle.

[0005] Furthermore, in the above-mentioned elevator, each ladder includes: two ladder legs and a lifting guide rail; wherein the lifting guide rail is arranged on the inner side of one of the ladder legs and is slidably connected to the other ladder leg, and is used to drive the other ladder leg to slide; the top of the ladder leg placed on the upper side of the two ladders is rotatably connected, and the locking mechanism is arranged at the bottom of the ladder leg placed on the lower side of the two ladders.

[0006] Furthermore, in the above-mentioned elevator, each ladder leg includes: two support bodies arranged in parallel, multiple pedals, multiple extension plates and a pushing mechanism; wherein each pedal is horizontally arranged between the two support bodies, and each pedal is provided with a receiving groove on its outer side wall in the thickness direction; each extension plate is movably arranged in the receiving groove of each pedal in a one-to-one correspondence; the pushing mechanism is arranged in one of the support bodies and is connected to each extension plate, and is used to push each extension plate to move out of or retract the receiving groove.

[0007] Furthermore, in the above-mentioned elevator, the pushing mechanism includes: a pushing motor, a transmission mechanism and a plurality of pushing components; wherein, an installation channel is opened inside one of the supporting bodies along its height direction, the installation channel is opened at a position corresponding to each pedal, and the receiving groove of each pedal is open at a position corresponding to each opening, so that the receiving groove is connected to the installation channel; the transmission mechanism is arranged in the installation channel; each pushing component is arranged in the installation channel and connected to the transmission mechanism, and each pushing component is connected to each extension plate one by one; the pushing motor is connected to the transmission mechanism, and is used to drive each pushing component to move through the transmission mechanism, so as to drive each extension plate to move out of or retract the receiving groove.

[0008] Furthermore, in the above-mentioned elevator, each pushing assembly includes: a pushing plate and a screw rod in the form of a right-angled triangle; wherein the screw rod is connected to the transmission mechanism; the hypotenuse of the pushing plate is slidably connected to the end of the extension plate, and the pushing plate is screwed to the screw rod; the screw rod is used to rotate under the drive of the transmission mechanism, driving the pushing plate to move along the bottom wall of the accommodating groove, so as to push the extension plate to move out of or retract the accommodating groove.

[0009] Furthermore, in the above-mentioned elevator, the transmission mechanism includes: a plurality of rotating wheels and a conveyor belt; wherein each rotating wheel is rotatably arranged in the installation channel, and each rotating wheel is connected to the end of each screw rod in a one-to-one correspondence; the conveyor belt is wound around the outside of each rotating wheel; and the driving motor is connected to one of the rotating wheels.

[0010] Furthermore, in the above-mentioned elevator, the end portion where the extending plate and the oblique side of the pushing plate are slidably connected is arc-shaped.

[0011] Furthermore, in the above-mentioned elevator, the locking mechanism includes: a screw, a threaded barrel, a rotating plate, a slider and a locking assembly; wherein the rotating plate is rotatably arranged at the bottom of one of the ladders; the first end of the screw is connected to the rotating plate, the second end of the screw is inserted and screwed in the threaded barrel, and a slider is arranged at the end of the threaded barrel away from the screw; the other ladder is provided with a slide groove near the bottom, and the slider is slidably connected to the slide groove; the locking assembly is arranged at the bottom of the slide groove, and is used to lock the slider when the slider slides to the bottom of the slide groove.

[0012] Furthermore, in the above-mentioned elevator, the locking assembly includes: an L-shaped baffle and an elastic member; wherein a clamping groove is opened on the side wall of the slide groove near the bottom, and the clamping groove is open on the side of the outer wall of the ladder; the first end of the baffle is slidably arranged in the clamping groove, and an elastic member is arranged between the first end of the baffle and the bottom wall of the clamping groove, and the first end of the baffle is used to be in an extended state under the action of the elastic member when the slider moves to the bottom of the slide groove to block the slider; the second end of the baffle extends from the open side wall of the clamping groove to the outside of the clamping groove, and is used to push the elastic member to compress, so that the first end of the baffle is placed in the clamping groove to cancel the blocking of the slider.

[0013] Furthermore, the above-mentioned lifting ladder also includes: a rocking rod, a pulling rope and a hook; wherein the rocking rod is arranged at the connection between the tops of the two ladders, and the rocking rod is connected to the hook through the pulling rope, and is used to drive the hook to move up and down by controlling the retraction and release of the pulling rope.

[0014] In the present invention, the tops of the two ladders are rotatably connected, and the locking mechanism locks the two ladders when the two ladders are rotated to the required angles, so that the two ladders remain stable, thereby improving the overall stability of the elevator, avoiding the elevator from tilting or becoming unstable, thereby ensuring the safety of the operators, and solving the problem of poor stability caused by the single-sided setting of the safety elevator in the prior art. In addition, both ladders can be climbed by the operators, which is convenient for the operators to use. At the same time, each ladder can be raised and lowered by itself, and the overall height of the elevator can be adjusted. The heights of the two ladders can also be adjusted separately according to needs, so that the elevator can meet various different needs and expand the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0016] Figure 1 A schematic diagram of the structure of an elevator provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the structure of the other side of the elevator provided by an embodiment of the present invention;

[0018] Figure 3 A schematic structural diagram of a pushing mechanism in an elevator provided in an embodiment of the present invention;

[0019] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0020] Figure 5 A schematic structural diagram of a transmission mechanism in an elevator provided by an embodiment of the present invention;

[0021] Figure 6 for Figure 2 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0022] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] See also Figures 1 to 6 , the figure shows the preferred structure of the lift in this embodiment. As shown in the figure, the lift includes: two ladders 1 and a locking mechanism 2. Each ladder 1 can be raised and lowered, so the height of each ladder 1 can be automatically adjusted. The tops of the two ladders 1 are rotatably connected, such as by a rotating shaft, or other rotatable connection methods, which are not limited in this embodiment.

[0024] The locking mechanism 2 is arranged at the bottom of the two ladders 1, and is used to lock the two ladders 1 when the two ladders 1 are rotated to a desired angle, so that the two ladders 1 keep the angle fixed, making the lift as a whole stable and firm.

[0025] It can be seen that in the present embodiment, the tops of the two ladders 1 are rotatably connected, and the locking mechanism 2 locks the two ladders 1 when the two ladders 1 are rotated to the desired angle, so that the two ladders 1 remain stable, thereby improving the overall stability of the elevator, avoiding the elevator from tilting or becoming unstable, thereby ensuring the safety of the operators, and solving the problem of poor stability caused by the single-sided setting of the safety elevator in the prior art. In addition, both ladders 1 can be climbed by operators, which is convenient for operators to use. At the same time, each ladder 1 can be raised and lowered by itself, and the overall height of the elevator can be adjusted. The heights of the two ladders 1 can also be adjusted separately according to needs, so that the elevator can meet various different needs and expand its scope of use.

[0026] See also Figure 1 and Figure 2In the above embodiment, each ladder 1 includes: two ladder legs 11 and a lifting rail 12. The lifting rail 12 is arranged on the inner side of one of the ladder legs 11, and the other ladder leg 11 is slidably connected to the lifting rail 12. Specifically, the two ladder legs 11 are respectively recorded as the first ladder leg and the second ladder leg. The lifting rail 12 is arranged on the inner side of the first ladder leg, and the second ladder leg is slidably connected to the lifting rail 12. The lifting rail 12 is used to drive the second ladder leg to slide along the direction of the first ladder leg, so that the overall height of the ladder 1 is extended or shortened, and the second ladder leg is placed above the first ladder leg. The lifting rail 12 can be an electric rail or other structures, and this embodiment does not impose any restrictions on this.

[0027] In specific implementation, the width of the first ladder leg is twice the width of the second ladder leg. The width of the first ladder leg is divided into two parts. The outer part serves as the structure of the first ladder leg, and the inner part is provided with a lifting guide rail 12 to install the second ladder leg.

[0028] The tops of the upper ladder legs 11 of the two ladders 1 are rotatably connected, and the locking mechanism 2 is provided at the bottoms of the lower ladder legs 11 of the two ladders 1. Specifically, the tops of the second ladder legs of the two ladders 1 are rotatably connected, and the locking mechanism 2 is provided at the bottoms of the first ladder legs of the two ladders 1.

[0029] See also Figures 1 to 5 Each ladder leg 11 includes: two support bodies 111, a plurality of pedals 112, a plurality of extension plates 113 and a pushing mechanism 114. The two support bodies 111 are arranged in parallel, that is, the two support bodies 111 are parallel and spaced a certain distance apart. Each pedal 112 is arranged horizontally between the two support bodies 111. Specifically, the two ends of each pedal 112 correspond to the two support bodies 111 one by one, and each end of each pedal 112 is connected to the corresponding support body 111, so each pedal 112 connects the two support bodies 111 into one. Each pedal 112 is arranged along the height direction of the two support bodies 111 ( Figure 1 The pedals 112 are arranged at intervals (from top to bottom as shown), and preferably the pedals 112 are evenly distributed along the height direction of the two support bodies 111.

[0030] In specific implementation, there can be two lifting rails 12 in each ladder 1, and the two lifting rails 12 are respectively and one-to-one arranged on the inner sides of the two supporting bodies 111 of the first ladder leg 11, and the two supporting bodies 111 of the second ladder leg 11 are slidably connected to the two lifting rails 12 one-to-one.

[0031] Each pedal 112 has a preset thickness, and each pedal 112 has a receiving groove on its outer side wall in the thickness direction, wherein the side of each pedal 112 facing the operator is the outer side wall, and the receiving groove is parallel to the top surface of the pedal 112, and the top surface of the pedal 112 is used for the operator to step on. The receiving groove extends from the outer side wall of the pedal 112 to the inner side of the pedal 112.

[0032] Each extension plate 113 corresponds to each pedal 112 one by one, and each extension plate 113 can be movably arranged in the receiving groove of the corresponding pedal 112, so each extension plate 113 can be placed inside the receiving groove, or can be extended to the outside of the receiving groove. When the extension plate 113 is extended to the outside of the receiving groove, the extension plate 113 is an extension of the pedal 112, which can extend the stepping surface of the operator, facilitate the operator's stepping, and improve the safety of the operator when stepping.

[0033] The pushing mechanism 114 is disposed inside one of the supporting bodies 111 , and is connected to each extension plate 113 . The pushing mechanism 114 is used to push each extension plate 113 out of the receiving groove or to drive each extension plate 113 to be retracted into the receiving groove.

[0034] The pushing mechanism 114 includes: a pushing motor 6, a transmission mechanism 7 and a plurality of pushing components 8. Among them, a mounting channel 1111 is provided inside one of the supporting bodies 111 along its height direction, and the mounting channel 1111 extends along the height direction of the supporting body 111. The mounting channel 1111 is provided with an opening corresponding to each pedal 112, and the receiving groove of each pedal 112 is open at each opening, so that the receiving groove is connected to the mounting channel 1111. Specifically, the supporting body 111 provided with the mounting channel 1111 is provided with an opening corresponding to each pedal 112, and the opening is connected to the mounting channel 1111, and the side wall of each pedal 112 facing the opening of the supporting body 111 is open, and the mounting channel 1111 is connected to the receiving groove of each pedal 112.

[0035] The transmission mechanism 7 is disposed in the installation channel 1111, and each push assembly 8 is also disposed in the installation channel 1111, and each push assembly 8 is connected to the transmission mechanism 7, and each push assembly 8 corresponds to each extension plate 113 one by one, and each push assembly 8 is connected to the corresponding extension plate 113. The push motor 6 is connected to the transmission mechanism 7, and the push motor 6 is used to drive each push assembly 8 to move through the transmission mechanism 7, and each push assembly 8 drives each extension plate 113 to move out of or retract the receiving groove.

[0036] Each pushing assembly 8 includes a pushing plate 81 and a screw rod 82 . The screw rod 82 is connected to the transmission mechanism 7 , and the screw rod 82 is arranged transversely in the installation channel 1111 , and the screw rod 82 extends from the installation channel 1111 to the extension plate 113 .

[0037] The push plate 81 is in the shape of a right triangle, one of the right-angled sides of the push plate 81 is in contact with the bottom wall of the receiving groove and the side wall of the installation channel 1111, and the hypotenuse of the push plate 81 is slidably connected to the end of the extension plate 113. Specifically, the bottom wall of the receiving groove is the side wall corresponding to the opening end of the receiving groove, and since the installation channel 1111 is connected to the receiving groove, the side wall of the installation channel 1111 is in contact with the bottom wall of the receiving groove, the first right-angled side of the push plate 81 is in contact with the side wall of the installation channel 1111 and the bottom wall of the receiving groove, and the second right-angled side of the push plate 81 is placed on one side of the transmission mechanism 7.

[0038] The screw 82 is provided through the second right-angled side and the hypotenuse of the push plate 81, and the screw 82 is screwed to the push plate 81. The screw 82 is used to rotate under the drive of the transmission mechanism 7, driving the push plate 81 to move along the bottom wall of the receiving groove, so as to push the extension plate 113 to move out of or retract the receiving groove. Specifically, when the extension plate 113 needs to be moved out of the receiving groove, the rotation of the screw 82 drives the push plate 81 to move along the bottom wall of the receiving groove toward the inside of the pedal 112 (i.e. Figure 4 When the extension plate 113 needs to be retracted into the receiving groove, the screw 82 rotates in the opposite direction, thereby driving the push plate 81 to move along the bottom wall of the receiving groove toward the transmission mechanism 7 (i.e. Figure 4 Since the hypotenuse of the push plate 81 is slidably connected to the end of the extension plate 113, the movement of the push plate 81 pulls the extension plate 113 to move, so that the extension plate 113 is retracted into the accommodating groove, which can save space and make the elevator compact as a whole.

[0039] Preferably, the end of the extension plate 113 that is slidably connected to the hypotenuse of the push plate 81 is arc-shaped. Specifically, the end of the extension plate 113 facing the push plate 81 is arc-shaped, and the end is slidably connected to the hypotenuse of the push plate 81. In this way, when the push plate 81 pushes the extension plate 113 to move, the hypotenuse of the push plate 81 and the end of the extension plate 113 are in sliding contact and extrusion. Since the inclined surface of the push plate 81 cooperates with the arc-shaped end of the extension plate 113, a smooth and effective thrust can be generated during the sliding and extrusion process, so that the extension plate 113 is moved out of the accommodating groove of the pedal 112. In this way, not only can the extension plate 113 be smoothly extended, but also sufficient supporting force can be provided.

[0040] The transmission mechanism 7 includes: a plurality of rotating wheels 71 and a conveyor belt 72. Each rotating wheel 71 is rotatably disposed in the installation channel 1111, each rotating wheel 71 corresponds to each screw rod 82 one by one, and the axis of each rotating wheel 71 is connected to the end of the corresponding screw rod 82.

[0041] The conveyor belt 72 is wound around the outside of each rotating wheel 71, and the push motor 6 is connected to one of the rotating wheels 71. The push motor 6 drives the rotating wheel 71 connected thereto to rotate, and then drives the remaining rotating wheels 71 to rotate through the conveyor belt 72. The rotation of each rotating wheel 71 drives the rotation of each screw rod 82, so that each screw rod 82 rotates synchronously, and then each extension plate 113 moves synchronously. By controlling the forward and reverse rotation of the push motor 6, the forward and reverse rotation of the screw rod 82 can be achieved, and then the extension plate 113 is driven to move out of or retract the accommodating groove.

[0042] In specific implementation, the driving motor 6 is arranged on the upper part of the ladder leg 11 and placed outside the support body 111 . The driving end of the driving motor 6 is rotatably passed through the support body 111 and placed inside the support body 111 and then connected to one of the rotating wheels 71 .

[0043] During specific implementation, the conveyor belt 72 may be a belt.

[0044] It can be seen that in the present embodiment, each pedal 112 in each ladder leg 11 is horizontally arranged between the two supporting bodies 111 for operators to step on. In order to ensure stable stepping of the operators, the pushing mechanism 114 pushes the extension plate 113 in each pedal 112 to extend to the outside of the pedal 112. The extension plate 113 and the pedal 112 are stepped on by the operators together, which expands the area of ​​the pedal 112, lengthens the stepping surface of the operators, provides stepping and operating space for the operators, and improves the safety of the operators when stepping on.

[0045] See also Figure 1 , Figure 2 , Figure 3 and Figure 6 In the above embodiments, the locking mechanism 2 includes: a screw 21, a threaded barrel 22, a rotating plate 23, a slider 24 and a locking assembly 25. The rotating plate 23 is rotatably disposed at the bottom of one of the ladders 1, specifically, the rotating plate 23 is rotatably connected to the bottom of the ladder leg 11 of one of the ladders 1, and more specifically, the rotating plate 23 is rotatably connected to the bottom of one of the supporting bodies 111 in the first ladder leg 11 of one of the ladders 1.

[0046] The first end of the screw rod 21 is connected to the rotating plate 23, the second end of the screw rod 21 is inserted into the threaded barrel 22, and the screw rod 21 is screwed to the threaded barrel 22. A slider 24 is arranged at one end of the threaded barrel 22 away from the screw rod 21, and the slider 24 is fixedly connected to the threaded barrel 22. In this way, by rotating the screw rod 21, the screw rod 21 drives the threaded barrel 22 to approach the first end of the screw rod 21 or to move away from the first end of the screw rod 21, thereby adjusting the overall length of the screw rod 21 and the threaded barrel 22, so that the screw rod 21 and the threaded barrel 22 are in a horizontal straight state as a whole, which can adapt to different angles between the two ladders 1 and ensure the stability between the two ladders 1.

[0047] The other ladder 1 is provided with a chute 3 near the bottom. Specifically, the chute 3 is provided near the bottom of the ladder leg 11 of the other ladder 1. More specifically, the chute 3 is provided near the bottom of one of the supports 111 of the first ladder leg 11 of the other ladder 1. The chute 3 and the rotating plate 23 are both provided on the same side of the bottom of the two ladders 1. The slider 24 is slidably connected to the chute 3. When the two ladders 1 are stored, the slider 24 is moved in the chute 3 toward the top of the chute 3 ( Figure 1 The upper part shown in the figure slides, driving the rotation of the rotating plate 23, so that the screw rod 21 and the threaded tube 22 are tilted as a whole, which facilitates the merging of the two ladders 1 together and then completes the storage.

[0048] Preferably, a driving motor 26 is provided on the rotating plate 23 , and the driving motor 26 is connected to the first end of the screw rod 21 . The driving motor 26 drives the screw rod 21 to rotate, thereby realizing automatic control without manual rotation of the screw rod 21 .

[0049] The locking assembly 25 is disposed at the bottom of the slide groove 3 , and the locking assembly 25 is used to lock the slider 24 when the slider 24 slides to the bottom of the slide groove 3 .

[0050] The locking assembly 25 includes a baffle 251 and an elastic member 252. The side wall of the slide 3 near the bottom is provided with a clamping groove 31, and the clamping groove 31 is open toward the outer side wall of the ladder 1. Specifically, the clamping groove 31 is provided on the side wall of the slide 3, and the clamping groove 31 is open toward the outer side wall of the ladder 1.

[0051] The baffle 251 is L-shaped, and the first end of the baffle 251 is slidably disposed in the clamping groove 31, and an elastic member 252 is disposed between the first end of the baffle 251 and the bottom wall of the clamping groove 31, wherein the bottom wall of the clamping groove 31 is a side wall opposite to the open end of the clamping groove 31 facing the slide groove 3. The first end of the baffle 251 is used to be in an extended state under the action of the elastic member 252 to block the slide groove 24 when the slide groove 24 moves to the bottom of the slide groove 3. Specifically, when the elastic member 252 is in a normal state, the first end of the baffle 251 extends into the slide groove 3. When the slider 24 slides downward from the top of the slide groove 3, the slider 24 pushes the end of the first end of the baffle 251, so that the first end of the baffle 251 moves into the engaging groove 31, thereby squeezing the elastic member 252, so that the elastic member 252 is in a compressed state. When the first end of the baffle 251 is completely placed in the engaging groove 31, the slider 24 can slide to the bottom of the slide groove 3, and the slider 24 no longer pushes the first end of the baffle 251. At this time, under the elastic restoring force of the elastic member 252, the elastic member 252 pushes the first end of the baffle 251. One end moves toward the slide groove 3 until the elastic member 252 is in a normal state. At this time, the first end of the baffle 251 extends into the slide groove 3, and the first end of the baffle 251 blocks the slider 24, so that the slider 24 is placed at the bottom of the slide groove 3 to prevent the slider 24 from moving in the slide groove 3. At this time, the slider 24 contacts the lower surface of the first end of the baffle 251 to form a stable clamping structure, which effectively locks the position of the threaded barrel 22, so that the threaded barrel 22 is quickly and firmly maintained at the bottom of the slide groove 3, avoiding position displacement due to sliding or vibration, and further enhancing the safety and stability of the elevator during use.

[0052] The second end of the baffle 251 extends from the open side wall of the clamping groove 31 to the outside of the clamping groove 31. The second end of the baffle 251 is used to push the elastic member 252 to compress, so that the first end of the baffle 251 is placed in the clamping groove 31 to cancel the obstruction of the slider 24. Specifically, when the slider 24 needs to slide to the top of the slide groove 3, the operator manipulates the second end of the baffle 251 to move the baffle 251 into the clamping groove 31, thereby squeezing the elastic member 252, so that the elastic member 252 is in a compressed state, until the first end of the baffle 251 is completely placed in the clamping groove 31, the first end of the baffle 251 cancels the obstruction of the slider 24, and the slider 24 can slide to the top of the slide groove 3, so that the operator can readjust the position of the threaded barrel 22, thereby improving the flexibility in use.

[0053] Preferably, the upper surface of the first end of the baffle 251 is arc-shaped.

[0054] In a specific implementation, the elastic member 252 may be a spring.

[0055] It can be seen that in this embodiment, by rotating the screw rod 21, the threaded barrel 22 moves, and the overall length of the screw rod 21 and the threaded barrel 22 can be adjusted to adapt to the angle between the two ladders 1. When the slider 24 slides to the bottom of the chute 3, the first end of the baffle 251 blocks the slider 24, so that the slider 24 remains at the bottom of the chute 3, that is, the position of the slider 24 is determined, so that the screw rod 21 and the threaded barrel 22 as a whole do not move, and the screw rod 21 and the threaded barrel 22 as a whole form a triangular distribution with the two ladders 1, thereby improving the overall stability and safety of the elevator. When the two ladders 1 need to be merged, the baffle 251 cancels the blocking of the slider 24, so that the slider 24 can slide to the top of the chute 3, and the sliding of the slider 24 drives the rotation of the rotating plate 23, so that the screw rod 21 and the threaded barrel 22 are in an inclined state as a whole, which is convenient for the storage of the elevator and saves space.

[0056] See also Figure 1 In each of the above embodiments, the lift also includes: a rocking rod 4, a pulling rope and a hook 5. The rocking rod 4 is arranged at the connection between the tops of the two ladders 1, and the rocking rod 4 is connected to the hook 5 through the pulling rope. The rocking rod 4 is used to drive the hook 5 to move up and down by controlling the retraction and release of the pulling rope. Specifically, a shell is arranged at the connection between the tops of the two ladders 1, and a rotating shaft is rotatably arranged in the shell. The pulling rope is wound around the rotating shaft. One end of the pulling rope extends to the outside of the shell and is connected to the hook 5. A part of the rocking rod 4 is placed outside the shell, and the other part is passed through the shell and placed inside the shell. The end of the rocking rod 4 placed inside the shell is connected to the rotating shaft. The operator rotates the rocking rod 4, which drives the rotation of the rotating shaft, and then releases or winds the pulling rope, so that the hook 5 moves downward or upward. The hook 5 can be used to hook work tools and work materials. By moving the hook 5 up and down, the work tools and work materials can be driven to move up and down, which is convenient for the workers to use, improves the construction efficiency and convenience, and reduces the trouble and danger of taking and throwing back and forth or throwing from high altitude.

[0057] During specific implementation, the rocking rod 4, the pulling rope and the hook 5 may also be the same as the hand-cranked lifting structure, which will not be described in detail in this embodiment.

[0058] See also Figures 1 to 6 The use of the lift is introduced as follows: the bottoms of the two ladders 1 are separated into an eight-shaped shape, and the heights of the two ladders 1 are adjusted according to actual conditions.

[0059] When the lift needs to be placed against a wall, the heights of the two ladders 1 are different. The lifting guide rail 12 on one of the ladders 1 is activated, so that the upper ladder leg 11 slides with the lower ladder leg 11 to extend to the required height, and the other ladder 1 is placed against the wall.

[0060] When the height adjustment of the lift is completed, the screw rod 21 is rotated to drive the threaded barrel 22 to move, so that the distance between the screw rod 21 and the threaded barrel 22 is shortened, until the screw rod 21 and the threaded barrel 22 are in a horizontal straight line as a whole, and the screw rod 21 is stopped. The slider 24 is slid to the bottom of the slide groove 3, and the first end of the baffle 251 blocks the slider 24, so that the position of the slider 24 is fixed, that is, the position of the threaded barrel 22 is fixed. At this time, the screw rod 21 and the threaded barrel 22 are in a fixed state, thereby stably supporting the two ladders 1.

[0061] The push motor 6 is started, and the push motor 6 drives each rotating wheel 71 to rotate, and then drives each screw rod 82 to rotate, and then drives each push plate 81 to move. Each push plate 81 drives each extension plate 113 to move out of the accommodating groove of each pedal 112 synchronously, thereby expanding the stepping area of ​​the pedal 112.

[0062] When the operator performs construction work on the lift, he can rotate the rocking rod 4 to drive the hook 5 to be lowered from a high place, and lift various tools and materials required for the work to a required height through the hook 5.

[0063] In summary, in the present embodiment, the tops of the two ladders 1 are rotatably connected, and the locking mechanism 2 locks the two ladders 1 when the two ladders 1 are rotated to the desired angle, so that the two ladders 1 remain stable, thereby improving the overall stability of the elevator, avoiding the elevator from tilting or becoming unstable, and thus ensuring the safety of the operators. In addition, both ladders 1 can be climbed by the operators, which is convenient for the operators to use. At the same time, each ladder 1 can be raised and lowered by itself, and the overall height of the elevator can be adjusted. The heights of the two ladders 1 can also be adjusted separately according to needs, so that the elevator can meet various different needs and expand its scope of use.

[0064] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0065] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An elevator, characterized in that: include: Two ladders (1) that can be raised and lowered by themselves and a locking mechanism (2); wherein: The tops of the two ladders (1) are rotatably connected, and the locking mechanism (2) is arranged at the bottoms of the two ladders (1) and is used to lock the two ladders (1) when the two ladders (1) are rotated to a required angle.

2. The elevator according to claim 1, characterized in that: Each of the ladders (1) comprises: two ladder legs (11) and a lifting guide rail (12); wherein: The lifting guide rail (12) is arranged on the inner side of one of the ladder legs (11) and is slidably connected to the other ladder leg (11) to drive the other ladder leg (11) to slide; The tops of the upper ladder legs of the two ladders (1) are rotatably connected, and the locking mechanism (2) is arranged at the bottoms of the lower ladder legs of the two ladders (1).

3. The elevator according to claim 2, characterized in that: Each of the ladder legs (11) comprises: two supporting bodies (111) arranged in parallel, a plurality of pedals (112), a plurality of extension plates (113) and a pushing mechanism (114); wherein: Each of the pedals (112) is transversely arranged between the two support bodies (111), and each of the pedals (112) is provided with a receiving groove on its outer side wall in the thickness direction; Each of the extension plates (113) is movably disposed in a receiving groove of each of the pedals (112) in a one-to-one correspondence; The pushing mechanism (114) is arranged in one of the supporting bodies (111) and is connected to each of the extending plates (113), and is used to push each of the extending plates (113) to move out of or retract into the accommodating groove.

4. The elevator according to claim 3, characterized in that: The pushing mechanism (114) comprises: a pushing motor (6), a transmission mechanism (7) and a plurality of pushing components (8); wherein: A mounting channel (1111) is provided inside one of the supporting bodies (111) along its height direction, the mounting channel (1111) is provided with an opening at a position corresponding to each pedal (112), and the receiving groove of each pedal (112) is open at a position corresponding to each opening, so that the receiving groove is in communication with the mounting channel (1111); The transmission mechanism (7) is arranged in the installation channel (1111); Each of the pushing components (8) is disposed in the installation channel (1111) and connected to the transmission mechanism (7), and each of the pushing components (8) is connected to each of the extension plates (113) in a one-to-one correspondence; The pushing motor (6) is connected to the transmission mechanism (7) and is used to drive each pushing assembly (8) to move through the transmission mechanism (7) so as to drive each extension plate (113) to move out of or retract into the accommodating groove.

5. The elevator according to claim 4, characterized in that: Each of the pushing components (8) comprises: a pushing plate (81) and a screw rod (82) in the form of a right triangle; wherein: The screw rod (82) is connected to the transmission mechanism (7); The oblique side of the push plate (81) is slidably connected to the end of the extension plate (113), and the push plate (81) is screwed to the screw rod (82); The screw rod (82) is used to rotate under the drive of the transmission mechanism (7), driving the pushing plate (81) to move along the bottom wall of the accommodating groove, so as to push the extension plate (113) to move out of or retract into the accommodating groove.

6. The elevator according to claim 5, characterized in that: The transmission mechanism (7) comprises: a plurality of rotating wheels (71) and a conveyor belt (72); wherein: Each of the rotating wheels (71) is rotatably disposed in the installation channel (1111), and each of the rotating wheels (71) is connected to an end of each of the screw rods (82) in a one-to-one correspondence; The conveyor belt (72) is wound around the outside of each of the rotating wheels (71); The driving motor (6) is connected to one of the rotating wheels (71).

7. The elevator according to claim 5, characterized in that: The end portion of the extension plate (113) that is slidably connected to the oblique edge of the push plate (81) is arc-shaped.

8. The elevator according to claim 1, characterized in that: The locking mechanism (2) comprises: a screw rod (21), a threaded cylinder (22), a rotating plate (23), a slider (24) and a locking assembly (25); wherein: The rotating plate (23) is rotatably arranged at the bottom of one of the ladders (1); The first end of the screw rod (21) is connected to the rotating plate (23), the second end of the screw rod (21) is inserted into and screwed into the threaded barrel (22), and the slider (24) is provided at one end of the threaded barrel (22) away from the screw rod (21); The other ladder (1) is provided with a slide groove (3) near the bottom, and the sliding block (24) is slidably connected to the slide groove (3); The locking assembly (25) is arranged at the bottom of the slide groove (3) and is used to lock the slide block (24) when the slide block (24) slides to the bottom of the slide groove (3).

9. The elevator according to claim 8, characterized in that: The locking assembly (25) comprises: an L-shaped baffle (251) and an elastic member (252); wherein: The slide groove (3) is provided with a clamping groove (31) on the side wall near the bottom, and the clamping groove (31) is open toward the outer side wall of the ladder (1); The first end of the baffle (251) is slidably disposed in the clamping groove (31), and the elastic member (252) is disposed between the first end of the baffle (251) and the bottom wall of the clamping groove (31), and the first end of the baffle (251) is used to be in an extended state under the action of the elastic member (252) to block the slider (24) when the slider (24) moves to the bottom of the slide groove (3); The second end of the baffle (251) extends from the open side wall of the clamping groove (31) to the outside of the clamping groove (31) and is used to push the elastic member (252) to compress, so that the first end of the baffle (251) is placed in the clamping groove (31) to cancel the obstruction of the sliding block (24).

10. The elevator according to claim 1, characterized in that: Also includes: A rocking rod (4), a pulling rope and a hook (5); wherein, The rocking rod (4) is arranged at the connection point of the tops of the two ladders (1), and the rocking rod (4) is connected to the hook (5) via the pulling rope, and is used to drive the hook (5) to move up and down by controlling the retraction and extension of the pulling rope.

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