Self-locking lifting chain
Through the design of a self-locking lifting chain, the drive motor and drive gear are used to drive the chain links to slide and engage, which solves the high cost and space occupation problems of the hydraulic pump method, and achieves stable lifting and low-cost self-locking lifting effects for the screen.
Patent Information
- Application Number
- CN202422715226.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The existing car central control screen lifting system uses a hydraulic pump, which results in high operating costs and limited piston thrust. Different sizes of screens need to be matched with corresponding models of hydraulic pumps and hydraulic cylinders, which takes up space inside the center console.
A self-locking lifting chain is used, and the driving motor drives the driving gear to rotate, so that the chain links slide along the guide rail and engage with each other to achieve self-locking lifting of the screen. It has a simple structure, low cost and strong support.
The screen can be raised and lowered stably, which reduces the cost of use, reduces the space occupied by the center console, and has good support.
Smart Images
Figure CN223331063U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chains, and more precisely to a self-locking lifting chain. Background Art
[0002] Chain drive is one of the most widely used transmission methods. In some transmission mechanisms, vertically arranged chains are required to provide lifting power to achieve the purpose of lifting and lowering objects. Chains are generally metal links or rings and are often used for mechanical transmission and traction. Chains are used to block traffic passages (such as in streets, rivers, or at the entrances of harbors) and for mechanical transmission.
[0003] As for the chain that raises and lowers the center console screen, existing systems typically utilize a hydraulic pump. This pump uses pressure to transfer liquid to a hydraulic cylinder, where a piston pushes the screen up or down. Controlling the hydraulic system and thus the screen's rise and fall is accomplished by switching a control valve. However, this method increases costs for manufacturers, and the piston's thrust is limited. Different screen sizes require matching hydraulic pumps and cylinders of corresponding models. Furthermore, during installation, different components must be positioned appropriately, occupying space within the center console.
[0004] In view of this, the utility model provides a self-locking lifting chain. Utility Model Content
[0005] The purpose of this utility model is to solve the above shortcomings and provide a self-locking lifting chain.
[0006] The driving motor drives the driving gear to rotate, and the driving gear drives the chain link on one side to slide along the outer edge of the guide rail, so that the chain links on both sides are alternately engaged with each other, that is, the chain links are self-locking, and the guide rail with the screen installed above is pushed out for easy observation. The device has the characteristics of simple structure, low cost and strong support.
[0007] Therefore, the utility model provides a self-locking lifting chain, including self-locking chains on both sides of the base, wherein guide rails are symmetrically provided on both sides of the base, and the self-locking chains are connected by sliding along the edge of the guide rails. One side of the self-locking chain is driven by a driving assembly and pushes out the self-locking chains on both sides, so that the self-locking chains on both sides are engaged with each other to form an upright chain.
[0008] As a further improvement of the present technical solution, the self-locking chain is composed of a plurality of chain links and fixed pins, the chain links are irregularly shaped, and adjacent chain links are connected by fixed pins.
[0009] As a further improvement of the present technical solution, a limiting slot is provided at the protrusion on one side of the chain link, and the chain links on both sides are engaged with each other to support the top plates fixedly connected to the chain links at both ends, on which a display screen can be installed.
[0010] As a further improvement of the present technical solution, the driving assembly includes a driving motor and a driving gear. The driving motor is installed in the middle of the base on the opposite side of the guide rail. The external tooth groove of the driving gear coaxially connected to the output shaft of the driving motor and multiple chain links cooperate with each other.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] In this self-locking lifting chain, a driving motor drives a driving gear to rotate, and the driving gear drives the chain link on one side to slide along the outer edge of the guide rail, so that the chain links on both sides are alternately engaged with each other, that is, self-locking is achieved between the chain links, and the guide rail with the screen installed above is pushed out for easy observation. The device has the characteristics of simple structure, low cost of use and strong support. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will be described in more detail below by way of examples with reference to the accompanying drawings, in which:
[0014] Figure 1 This is a schematic diagram of the self-locking chain of the present invention in a folded state;
[0015] Figure 2 This is a schematic diagram of the self-locking chain of the present invention in an unfolded state;
[0016] Figure 3 This is an enlarged structural diagram of point A of the present utility model;
[0017] Figure 4 This is a schematic diagram of the drive assembly structure of the present utility model.
[0018] The meaning of each number in the figure is:
[0019] 100, self-locking chain; 101, chain link; 102, fixing pin; 103, limit slot;
[0020] 200, base; 201, guide rail; 202, top plate;
[0021] 300, driving assembly; 301, driving motor; 302, driving gear. DETAILED DESCRIPTION
[0022] As for the chain that raises and lowers the center console screen, existing systems typically utilize a hydraulic pump. This pump uses pressure to transfer liquid to a hydraulic cylinder, where a piston pushes the screen up or down. Controlling the hydraulic system and thus the screen's rise and fall is accomplished by switching a control valve. However, this method increases costs for manufacturers, and the piston's thrust is limited. Different screen sizes require matching hydraulic pumps and cylinders of corresponding models. Furthermore, during installation, different components must be positioned appropriately, occupying space within the center console.
[0023] like Figure 1-4 As shown, the device includes self-locking chains 100 on both sides of the base 200, and guide rails 201 are symmetrically provided on both sides of the base 200. The self-locking chains 100 are connected by sliding along the edge of the guide rail 201. The self-locking chain 100 on one side is driven by the driving assembly 300 and pushes out the self-locking chains 100 on both sides, so that the self-locking chains 100 on both sides are engaged with each other to form an upright chain. The driving motor 301 drives the driving gear 302 to rotate, and the driving gear 302 drives the chain links 101 on one side to slide along the outer edge of the guide rail 201, so that the chain links 101 on both sides are alternately engaged with each other, that is, self-locking is achieved between the chain links 101, and the guide rail 201 on which the screen is installed is pushed out for easy observation. The device has the characteristics of simple structure, low cost of use and strong support.
[0024] First, when installing the car screen, place the entire device in the placement slot pre-opened on the center console, and the guide rails 201 on both sides are against the inner wall of the placement slot, and the self-locking chains 100 on both sides are pressed to prevent the self-locking chains 100 from falling off the guide rails 201. Then use screws to fix the base 200 in the placement slot to prevent the base 200 from shaking in the working state and affecting the stability of the screen.
[0025] Therefore, after the screen is fixed on the top plate 202, the cover on the center console is covered so that the screen fits exactly with the square hole opened in the cover. When the screen needs to be raised, by pressing the lifting button, the control system controls the drive motor 301 to start working, and the output shaft of the drive motor 301 drives the drive gear 302 to rotate. Since the outer tooth groove of the drive gear 302 and the multiple chain links 101 coaxially connected to the output shaft of the drive motor 301 cooperate with each other, during the rotation of the drive gear 302, the chain link 101 on one side is pushed to one side and close to the chain link 101 on the other side.
[0026] In order to lift up the screen fixed on the top plate 202, the specific structure of the self-locking chain 100 is disclosed. The self-locking chain 100 is composed of multiple links 101 and fixed pins 102. The links 101 are irregular in shape. Adjacent links 101 are connected by fixed pins 102, and a limiting slot 103 is provided at the protrusion on one side of the link 101. Therefore, in the process of driving the link 101 to move to one side, the adjacent links 101 on both sides are alternately engaged with each other through the limiting slot 103, and the multiple engaged links 101 form an upright chain, so that the chain moves upward to push out the top plate 202 and the screen. The structure is simple and easy to use. It can also prevent the screen from tilting and falling, thereby reflecting the good support advantage of the device.
[0027] As the screen rises, the chain links 101 at the outer edge of the guide rail 201 are continuously reduced. When the screen rises to the specified position, the lifting knob is pressed again. At this time, the drive motor 301 stops rotating and the screen remains at the specified height. Secondly, when retracting the screen, by pressing the descending button, the drive motor 301 rotates in the opposite direction to retract the chain links 101. At the same time, the chain links 101 drive the top plate 202 and the screen to descend, and the screen is retracted to be flush with the center console cover.
[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A self-locking lifting chain, comprising self-locking chains (100) on both sides of a base (200), characterized in that: Guide rails (201) are symmetrically provided on both sides of the base (200), and self-locking chains (100) are slidably connected along the edges of the guide rails (201). The self-locking chain (100) on one side is driven by a driving assembly (300) and the self-locking chains (100) on both sides are pushed out, so that the self-locking chains (100) on both sides are mutually engaged and matched to form an upright chain.
2. The self-locking lifting chain according to claim 1, characterized in that: The self-locking chain (100) is composed of a plurality of chain links (101) and a fixed pin shaft (102), and adjacent chain links (101) are connected via the fixed pin shaft (102).
3. The self-locking lifting chain according to claim 2, characterized in that: A limit slot (103) is provided at a raised portion on one side of the chain link (101), and the chain links (101) on both sides are engaged with each other to support the chain links (101) at both ends to be fixedly connected to a top plate (202), on which a display screen can be installed.
4. The self-locking lifting chain according to claim 1, wherein: The drive assembly (300) comprises a drive motor (301) and a drive gear (302). The drive motor (301) is mounted in the middle of the base (200) on the opposite side of the guide rail (201). The output shaft of the drive motor (301) is coaxially connected to the drive gear (302), and the outer tooth grooves of the drive gear (302) and the plurality of chain links (101) cooperate with each other.