Novel structure of goods elevator
By designing a lifting device and support mechanism with symmetrically arranged motors and threaded sleeves, the reliability problem of the freight elevator lifting device is solved, multi-point support and synchronous movement are achieved, wear is reduced, goods are prevented from slipping and shifting, and the reliability and efficiency of the freight elevator are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YONGYU ELEVATOR MFG DEV
- Filing Date
- 2025-03-12
- Publication Date
- 2026-08-04
AI Technical Summary
The existing lifting devices and placement components of freight elevators are not very reliable after long-term use. Single-point support leads to severe wear, and the placement plate is difficult to rotate and push under gravity, which increases the risk of damage to the U-shaped fixing frame.
The lifting device adopts two sets of motors, screws and threaded sleeves arranged symmetrically, and the two threaded sleeves are connected by a support rod to achieve synchronous movement. At the same time, a support mechanism is set at the end of the shelf, including a gear, rack and pinion structure, to achieve multi-point support and synchronous movement, reduce wear, and prevent the support mechanism from retracting through rollers and pawls.
It improves the stability of the freight elevator, reduces wear on the lifting device, prevents goods from slipping and shifting, and enhances the reliability and efficiency of the freight elevator.
Smart Images
Figure CN224590481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of freight elevators, and in particular to a novel freight elevator structure. Background Technology
[0002] Freight elevators, also known as cargo elevators, are large-scale electromechanical integrated equipment specifically designed for cargo transportation. They are widely used in industrial, warehousing, and commercial fields. Depending on the usage environment and functional requirements, they can be divided into various types, featuring strong load-bearing capacity, smooth operation, and high safety and reliability. Freight elevators mainly consist of guide rails, a car, an electrical system, safety protection devices, a door system, and a traction system, enabling the efficient and safe transport of heavy or large materials. The use of freight elevators greatly improves logistics efficiency, reduces the need for manual handling, and is an indispensable piece of equipment in modern logistics transportation.
[0003] The prior art discloses a utility model patent entitled: A freight elevator with an automatic lifting platform, publication number: CN115009957A. It includes: a freight elevator body and a lifting device, wherein the lifting device includes a motor arranged on one side of the elevator, the motor is connected to a U-shaped fixing frame through a threaded rod and a threaded sleeve, and drives the lifting and lowering of the U-shaped fixing frame, and drives the placement component set inside the U-shaped fixing frame.
[0004] However, the placement component in the patent application specification is driven to rise and fall by a motor connected to a threaded rod and a threaded sleeve on one side of the elevator. During the rising and falling process, the single-point support method causes uneven force on the placement component, which can easily accelerate the wear of the threaded rod and the threaded sleeve.
[0005] Meanwhile, when the rotating plate arranged on one side of the placement component needs to be retracted after its surface is full of goods, the operation is as follows: First, rotate the rotating plate to a 90-degree angle with the placement plate and fix it to the placement plate with bolts. After fixing the rotating plate, push the placement plate with the goods between the two placement slots into the interior of the U-shaped fixing frame and fix the placement plate to the U-shaped fixing frame with bolts.
[0006] However, during this process, since the first step is to rotate the rotating plate, when the placement plate is full of goods, the excessive weight of the placement plate causes excessive friction between the end of the rotating plate and the ground, making it difficult to rotate. Furthermore, when the rotating plate is rotated above the placement plate, there is no support between the placement plate and the ground, and one side of the placement plate is suspended in the air. At this time, the force on the connection between the legs of the U-shaped fixing frame and the placement plate is too great. During the process of pushing the placement plate, not only will the risk of damage to the legs of the U-shaped fixing frame be increased, but the resistance during the pushback process will also be increased. Utility Model Content
[0007] The purpose of this invention is to solve the problem of low reliability of lifting devices and placement components in the prior art during long-term use.
[0008] To achieve the above objectives, this application proposes a novel freight elevator structure, comprising: a freight elevator body; a base installed at the bottom of the inner wall of the freight elevator body; a lifting device connected to the base on the side wall of the freight elevator body; the lifting device including two motors installed at the top of the left and right side walls of the freight elevator body; screws fixedly connected to one end of the motor output shaft via couplings; two threaded sleeves threadedly connected to the surfaces of the two screws; a support rod connecting the two threaded sleeves; a U-shaped fixing frame installed on the top surface of the support rod and opening towards the front wall of the freight elevator body; a shelf embedded in the inner wall of the U-shaped fixing frame and connected to the U-shaped fixing frame via a slide rail mechanism; a mounting groove installed on the front surface of the shelf and penetrating the shelf; and a support mechanism installed within the mounting groove.
[0009] The lifting device of this application symmetrically arranges two sets of motors, screws, and threaded sleeves on opposite sides of the elevator, and connects the two threaded sleeves together through a support rod. This achieves simultaneous support for the shelf and synchronous movement of the two threaded sleeves. First, the symmetrical arrangement of the two sets of motors, screws, and threaded sleeves changes the U-shaped fixing frame from a single-point support to a multi-point support, increasing the stability of the shelf support and reducing wear on the lifting device during the lifting process. At the same time, the support rod connects the two threaded sleeves, achieving synchronous movement of the two threaded sleeves, further reducing wear caused by insufficient synchronization between the two threaded sleeves. This solves the problem of low reliability of the lifting device and placement components in the prior art during long-term use.
[0010] Furthermore, in order to achieve a fixed installation of the screw, the end of the screw without the motor is fixed to the base.
[0011] As an improvement to the aforementioned support mechanism, in order to achieve synchronous movement of the first support plate and the second support plate, so that the support plate can support the ground while blocking the goods placed on the shelf to prevent them from slipping, the support mechanism includes: a first support plate that is tightly attached to the front end face of the mounting groove and a second support plate that is tightly attached to the rear end face of the mounting groove; a gear disposed in the space between the first support plate and the second support plate; a first rack disposed on the rear end face of the first support plate and meshing with the gear; a second rack disposed on the front end face of the second support plate, parallel to the first rack and meshing with the gear; a groove that passes through the first support plate and the second support plate, is disposed in the space between the first rack and the second rack, and is parallel to the first rack and the second rack; a rotating shaft that passes through the groove and the gear and passes through the shelf; and a knob disposed on the rotating shaft near the end of the first rack.
[0012] Furthermore, in order to facilitate the deployment and support function of the support mechanism, a ratchet is provided between the knob and the shelf, which is arranged on the rotating shaft; a pawl that cooperates with the ratchet is provided on the front end face of the shelf.
[0013] Furthermore, to facilitate the reset of the support mechanism after use, a pressure plate is provided at the end of the pawl away from the ratchet.
[0014] Furthermore, in order to effectively reduce the resistance encountered when the shelf is pushed back after being filled with goods, rollers are provided on both sides of the bottom of the first support plate near the base.
[0015] The beneficial effects of this application are as follows: 1. The lifting device of this application, by symmetrically arranging two sets of motors, screws and threaded sleeves on opposite sides of the elevator, and connecting the two threaded sleeves together by a support rod, completes the support of the shelf while realizing the synchronous movement of the two threaded sleeves. First, the symmetrical arrangement of the two sets of motors, screws and threaded sleeves can change the U-shaped fixing frame from the original single-point support to multi-point support, increasing the stability of the shelf support and reducing the wear of the lifting device during the lifting process. At the same time, the support rod connects the two threaded sleeves, realizing the synchronous movement of the two threaded sleeves, further reducing the wear problem caused by insufficient synchronization of the two threaded sleeves, and solving the problem of low reliability of the lifting device and the placement component in the prior art during long-term use.
[0016] 2. This application provides a support mechanism at the end of the shelf. Before placing goods, simply rotate the knob on the surface of the support mechanism to extend it to the ground, thus supporting the shelf and reducing the pressure on the U-shaped support frame during the placement of goods. The ratchet and pawl on the support mechanism prevent support failure caused by the retraction of the support mechanism. After placing the goods, there is no need to rotate the support plate. Simply push the support mechanism, and the shelf can be easily pushed back into the U-shaped support frame by the rotation of the rollers, thereby reducing the friction on the U-shaped support frame and reducing wear on the U-shaped support frame.
[0017] 3. During the placement of goods, the support mechanism of this application provides support because the first support plate extends towards the bottom of the shelf and connects the shelf to the ground. Simultaneously, the second support plate extends towards the top of the shelf, creating a relatively protruding baffle on the top surface. For small, easily movable goods, this baffle does not increase the difficulty of placement. However, it does act as a barrier for small goods placed on the bottom layer of the shelf, effectively preventing loose small goods from sliding and falling off.
[0018] 4. The support mechanism of this application does not require the first and second support plates to be retracted after the lifting device raises the shelf. When a large cargo placed below the shelf is close to the shelf, the inner wall of the first support plate can contact the large cargo, which can effectively prevent the large cargo from shifting. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of a novel freight elevator structure according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the shelf in the embodiment of this application; Figure 3 This is a schematic diagram of the support mechanism in the embodiments of this application; Explanation of reference numerals in the attached figures: 1. Freight elevator main body; 2. Base; 3. Lifting device; 31. Motor; 32. Screw; 33. Threaded sleeve; 34. Support rod; 35. U-shaped fixing frame; 36. Shelf; 37. Mounting groove; 38. Support mechanism; 381. First support plate; 382. Second support plate; 383. Gear; 384. First rack; 385. Second rack; 386. Groove; 387. Rotating shaft; 388. Knob; 389. Ratchet; 3810. Pad; 3811. Pressure plate; 3812. Roller. Detailed Implementation
[0021] The following will be combined with the appendix Figures 1-3 The embodiments of the technical solutions of this application are described in detail below. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other. Example
[0022] like Figure 1This illustration depicts a novel freight elevator structure. To increase the stability of the shelf support and reduce wear on the lifting device, the lifting device of this application comprises a motor 31 installed at the top of each of the left and right side walls of the freight elevator body 1. The output shaft of each motor 31 is fixedly connected to a screw 32 via a coupling. A threaded sleeve 33 is threaded onto the surface of each of the two screws 32, and the two threaded sleeves 33 are connected by a support rod 34, forming a multi-point support structure. This structure not only supports the shelf 36 but also enables the synchronous movement of the two threaded sleeves 33. When the motor 31 starts, the shelf 36 is raised or lowered through the threaded engagement of the screws 32 and the threaded sleeves 33. Because the two sets of motors 31, screws 32, and threaded sleeves 33 are symmetrically arranged, the U-shaped fixing frame 35 changes from a single-point support to a multi-point support, increasing the stability of the shelf 36 and reducing wear on the lifting device 3 during the lifting process. In addition, the support rod 34 connects the two threaded sleeves 33, ensuring the synchronous movement of the two threaded sleeves 33 and further reducing wear problems caused by insufficient synchronization. Example
[0023] Please refer to Figure 2 To reduce friction and wear on the U-shaped support frame, a support mechanism 38 is provided at the end of the shelf 36. This mechanism includes a first support plate 381 and a second support plate 382. Through the meshing of gears 383, a first rack 384, and a second rack 385, and the cooperation of a rotating shaft 387 and a knob 388, the support mechanism 38 can be extended and retracted. Before placing goods, simply rotating the knob 388 extends the support mechanism 38 to the ground, providing support between the shelf 36 and the ground, thus reducing the pressure on the U-shaped support frame 35 during goods placement. Simultaneously, the ratchet 389 and pawl 3810 prevent the support mechanism 38 from retracting under external force, ensuring the reliability of the support. After the goods are placed, there is no need to rotate the support plate. Simply push the support mechanism 38, and the placement plate 36 can be easily pushed back into the U-shaped fixing frame 35 by the rotation of the roller 3812, thereby reducing the friction force on the U-shaped fixing frame 35 and reducing the wear of the U-shaped fixing frame 35. Example
[0024] Please continue to refer to Figure 3To effectively prevent loose goods from sliding and falling, the support mechanism 38, during the placement of goods, extends the first support plate 381 towards the bottom of the shelf 36, connecting the shelf 36 to the ground and providing support. Simultaneously, the second support plate 382 extends towards the top of the shelf 36, providing a relatively protruding baffle on the top surface of the shelf 36. While this baffle does not increase the difficulty of placing small, easily movable goods, it acts as a barrier for the lowest layer of small goods placed on the shelf 36, effectively preventing loose small goods from sliding and falling off the shelf 36. Example
[0025] Please continue to refer to Figure 3 To prevent the displacement of large goods, the first support plate 381 and the second support plate 382 may not be retracted after the lifting device 3 raises the storage plate 36. When the large goods placed below the storage plate 36 are close to the storage plate 36, the inner wall of the first support plate 381 can contact the large goods, forming additional support and limiting, which can effectively prevent the large goods from shifting during transportation and improve the stability and safety of the freight elevator.
[0026] In summary, the novel freight elevator structure of this application improves the stability of the freight elevator and reduces wear by optimizing the design of the lifting device and support mechanism. At the same time, it solves the problems of loose goods sliding and falling and large goods shifting, thereby improving the reliability and efficiency of the freight elevator.
[0027] In the description of the embodiments of this application, the technical terms "upper", "lower", "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 the embodiments of this application 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 the embodiments of this application.
[0028] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "set," "equipped with," "connected," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A novel freight elevator structure, comprising: Freight elevator body (1); A base (2) installed at the bottom of the inner wall of the main body of the freight elevator (1), and a lifting device (3) connected to the base (2) on the side wall of the main body of the freight elevator (1), characterized in that the lifting device (3) includes two motors (31) set at the top of the left and right side walls of the main body of the freight elevator (1); a screw (32) fixedly connected to one end of the output shaft of the motor (31) through a coupling; two threaded sleeves (33) threadedly connected to the surfaces of the two screws (32); a support rod (34) connecting the two threaded sleeves (33); a U-shaped fixing frame (35) set on the top surface of the support rod (34) and opening towards the front wall of the main body of the freight elevator (1); a shelf (36) embedded in the inner wall of the U-shaped fixing frame (35) and connected to the U-shaped fixing frame (35) through a slide rail mechanism; an installation groove (37) set on the front end face of the shelf (36) and penetrating the shelf (36); and a support mechanism (38) set in the installation groove (37).
2. The novel freight elevator structure according to claim 1, characterized in that, The end of the screw (32) without the motor (31) is fixed to the base (2).
3. The novel freight elevator structure according to claim 1, characterized in that, The support mechanism (38) includes: a first support plate (381) tightly abutting the front end face of the mounting groove (37) and a second support plate (382) tightly abutting the rear end face of the mounting groove (37); a gear (383) disposed in the space between the first support plate (381) and the second support plate (382); a first rack (384) disposed on the rear end face of the first support plate (381) and meshing with the gear (383); and a rack (384) disposed on the front end face of the second support plate (382) parallel to the first rack (384). A second rack (385) meshes with the gear (383); a groove (386) passing through the first support plate (381) and the second support plate (382), and set in the space between the first rack (384) and the second rack (385) and parallel to the first rack (384) and the second rack (385); a rotating shaft (387) passing through the groove (386) and the gear (383) and passing through the shelf (36); and a knob (388) set on the rotating shaft (387) near the end of the first rack (384).
4. The novel freight elevator structure according to claim 3, characterized in that, A ratchet (389) is provided between the knob (388) and the shelf (36) and is arranged on the rotating shaft (387); a pawl (3810) that cooperates with the ratchet (389) is provided on the front end face of the shelf (36).
5. The novel freight elevator structure according to claim 4, characterized in that, The end of the pawl (3810) away from the ratchet (389) is provided with a pressure plate (3811).
6. The novel freight elevator structure according to claim 3, characterized in that, The first support plate (381) is provided with rollers (3812) on both sides of the bottom of the base (2).