Pull-down type curtain locking device for train
By adopting a limit shell embedded in the vehicle wall and a limit cavity structure with hooks embedded in the train curtain locking device, the passenger error problem caused by the protrusion of the limit hook in the prior art is solved, and the safety performance of the curtains is improved.
Patent Information
- Application Number
- CN202421767096.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The limit hook of the existing train curtain locking device protrudes from the car wall, which is easily touched by passengers, affecting the ride experience and posing safety hazards.
A train pull-down curtain locking device is designed, adopting a limit shell embedded in the vehicle wall and a limit cavity structure of the hook. Locking is achieved by inserting the hook on the traction rod into the limit cavity, reducing the impact on passengers and safety hazards.
Through the embedded limit shell structure, the impact and safety hazards of curtains on passengers during use are reduced, and the safety performance of curtains is improved.
Smart Images
Figure CN222780418U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of curtain locking devices, and in particular to a pull-down curtain locking device for trains. Background Art
[0002] The self-rolling and pull-down curtains are a common type of curtains for windows in modern train designs. They combine the functions of automatic rolling up and pulling down, which not only facilitates passengers to quickly adjust the height of the curtains, but also automatically retracts when not needed, keeping the window area clean and beautiful.
[0003] In the existing train curtain technology, the pull-down curtain usually includes a spring curtain roller fixed on the car wall and a curtain body wound on the spring curtain roller. A traction rod is provided on the far side of the curtain body. In order to achieve the pull-down locking of the curtain, the train car wall is also provided with a limit hook protruding from the inner surface of the car wall. When the passenger pulls down the curtain to a certain position, the traction rod will move down to the bottom of the limit hook, and then under the action of the rebound force of the spring curtain roller, the curtain starts to automatically roll back until the outer periphery of the traction rod abuts against the limit hook, thereby achieving the pull-down locking of the curtain.
[0004] However, although this design effectively realizes the automatic retraction and locking of the curtain, it also has some problems. In particular, since the limit hook is protruding from the vehicle wall, passengers sitting near the seat may accidentally touch the limit hook protruding from the inner surface of the vehicle wall, which not only affects the passenger's riding experience, but also may cause certain safety hazards, and there is room for improvement. Utility Model Content
[0005] The purpose of this application is to provide a train pull-down curtain locking device to solve the problem in the above-mentioned related technology that passengers sitting near the seats may accidentally touch the limit hook, affecting the riding experience and may also cause certain safety hazards.
[0006] The present application provides a train pull-down curtain locking device that adopts the following technical solution:
[0007] A pull-down curtain locking device for trains comprises a spring curtain roller fixedly mounted on a vehicle wall and a curtain body wound around the spring curtain roller, wherein a traction rod is fixedly mounted on the curtain body away from the spring curtain roller; hooks are fixedly mounted at both ends of the traction rod, and a locking member for locking the hooks is disposed below the spring curtain roller, wherein the locking member comprises two limiting shells embedded in the vehicle wall, and a limiting cavity is provided on the limiting shell for the hooks to be placed and locked.
[0008] By adopting the above technical solution, when the curtain body is pulled down, the hook on the traction rod can be inserted into the limiting cavity on the limiting shell. Since the limiting shell is embedded in the inside of the vehicle wall, the impact of the pull-down curtain on the passengers during use is reduced, and the corresponding safety hazards (causing bumps to passengers, etc.) are also reduced, thereby improving the safety performance of the pull-down curtain during use.
[0009] Optionally, the inner edge of the opening of the limiting cavity is a guide fillet.
[0010] By adopting the above technical solution, due to the setting of the guide fillet on the opening edge of the limiting cavity, it is convenient for the user to insert the hook on the traction rod into the limiting cavity on the limiting shell along the guide fillet.
[0011] Optionally, the limiting shell is fixedly provided with a baffle on the outer edge of the opening of the limiting cavity, and a clamping block is fixedly provided on the outer surface of the limiting shell, and a limiting gap is preset between the clamping block and the baffle for the inner edge of the opening of the limiting shell on the vehicle wall to be clamped.
[0012] By adopting the above technical solution, due to the matching arrangement of the baffle and the clamping block, when the limit shell is installed and fixed, the limit shell can be inserted into the opening on the vehicle wall and pressed with force, so that the inner edge of the opening accommodating the limit shell is inserted into the limit gap between the clamping block and the baffle, thereby improving the installation efficiency of the limit shell.
[0013] Optionally, the side of the block away from the baffle is a guiding arc surface.
[0014] By adopting the above technical solution, due to the setting of the guiding arc surface on the clamping block, the inner edge of the opening accommodating the limit shell is clamped into the limit gap between the clamping block and the baffle along the guiding arc surface, further reducing the difficulty of installing the limit shell and improving its installation efficiency.
[0015] Optionally, a magnet block is fixedly provided on the outer side surface of the limiting shell facing the spring roller, and the hook is made of a material that can be attracted by the magnet block.
[0016] By adopting the above technical solution, the hook in the limiting cavity can be adsorbed and fixed by the magnet block to improve the installation stability of the limiting shell, and the structural strength of the limiting shell can be improved to reduce the possibility of deformation or damage of the limiting shell when the hook is pressed tightly.
[0017] Optionally, a fixing sleeve is fixedly provided on the side surface of the hook, and the fixing sleeve is fixedly sleeved on the outer peripheral surface of the end of the traction rod.
[0018] By adopting the above technical solution, due to the setting of the fixing sleeve, the fixing sleeve can be fixedly installed on the outer periphery of the traction rod, thereby realizing the connection and fixation between the hook and the end of the traction rod, thereby improving the assembly efficiency of the hook and the traction rod.
[0019] Optionally, a traction ring is fixedly provided on the side of the traction rod away from the spring roller.
[0020] By adopting the above technical solution, it is convenient for the user to pull the traction rod and the curtain body by pulling the pull ring.
[0021] Optionally, the outer edge of the traction pull ring is rounded.
[0022] By adopting the above technical solution, since the outer edge of the traction pull ring is rounded, the possibility of the user's hand being scratched when pulling the traction pull ring is reduced.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. Since the limiting shell is embedded in the interior of the vehicle wall, the impact of the pull-down curtain on passengers during use is reduced, and the corresponding safety hazards (such as bumps on passengers) are also reduced, thereby improving the safety performance of the pull-down curtain during use.
[0025] 2. Due to the coordinated setting of the baffle and the card block, when the limit shell is installed and fixed, the limit shell can be inserted into the opening on the vehicle wall and pressed with force, so that the inner edge of the opening accommodating the limit shell is inserted into the limit gap between the card block and the baffle along the guide arc surface, thereby improving the installation efficiency of the limit shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;
[0028] Figure 2 This is a schematic diagram of the structure of the embodiment of the present application showing the engagement between the hook and the limit shell;
[0029] Figure 3 This is a schematic diagram of the structure of the embodiment of the present application showing the installation and cooperation between the limit housing and the magnet block;
[0030] Figure 4 It is a partial cross-sectional structural schematic diagram of the installation and cooperation of the limit housing in the embodiment of the present application;
[0031] Figure 5 This is a schematic diagram of the structure of the embodiment of the present application showing the installation and coordination of the traction rod and the curtain body;
[0032] Figure 6 It is a structural schematic diagram of the installation distribution of the upper limit shell on the vehicle wall in an embodiment of the present application.
[0033] In the figure, 1, spring roller shutter; 2, curtain body; 3, traction rod; 31, traction ring; 4, hook; 41, fixing sleeve; 5, locking piece; 51, limiting shell; 511, limiting cavity; 512, guide fillet; 52, magnet block; 53, baffle; 54, clamping block; 541, guide arc surface. DETAILED DESCRIPTION
[0034] The present application is further described in detail below in conjunction with all the accompanying drawings.
[0035] Example:
[0036] Reference Figure 1 and Figure 2 A train pull-down curtain locking device comprises a spring curtain roller 1 fixedly mounted on a train wall and a curtain body 2 wound around the spring curtain roller 1. The train shell is multi-layered, wherein the train wall is the layer closest to the interior of the carriage. A traction rod 3 is fixedly mounted on the curtain body 2 away from the spring curtain roller 1, and hooks 4 are fixedly arranged at both ends of the traction rod 3.
[0037] A locking member 5 for limiting and locking the hook 4 is provided below the spring roller shutter device 1, wherein the locking member 5 includes two limiting shells 51 embedded in the vehicle wall, and a limiting cavity 511 is provided on the limiting shell 51 for the hook 4 to be placed and locked, and the inner edge of the opening of the limiting cavity 511 is a guide fillet 512; when the curtain body 2 is pulled down, the hook 4 on the traction rod 3 can be inserted into the limiting cavity 511 on the limiting shell 51.
[0038] Reference Figure 2 A fixing sleeve 41 is fixedly provided on the side of the hook 4, wherein the fixing sleeve 41 is fixedly sleeved on the outer peripheral surface of the end of the traction rod 3, and finally the fixing sleeve 41 is fastened to the outer peripheral surface of the end of the traction rod 3 by screws.
[0039] Reference Figure 2 and Figure 3 , the hook 4 is bent toward the direction close to the spring roller blind 1; when the limiting shell 51 is installed, the limiting shell 51 and the limiting cavity 511 inside are inclined toward the direction close to the spring roller blind 1. When the hook 4 is in the locked state, this arrangement reduces the possibility of the hook 4 naturally coming out of the limiting cavity 511 under the action of the rebound force.
[0040] A magnet block 52 is fixedly provided on the outer side of the limiting shell 51 facing the spring roller shutter device 1, and the hook 4 is made of metal material that can be attracted by the magnet block 4, specifically iron. In this way, the hook 4 in the limiting cavity 511 can be adsorbed and fixed by the magnet block 52, and the structural strength of the limiting shell 51 can be improved, thereby reducing the possibility of deformation or damage of the limiting shell 51 when the hook 4 is pressed tightly.
[0041] Reference Figure 3 and Figure 4 The limiting shell 51 is integrally formed with a baffle 53 at the outer edge of the opening of the limiting cavity 511, and a plurality of clamping blocks 54 are fixedly arranged on the outer surface of the limiting shell 51. A limiting gap is preset between the clamping blocks 54 and the baffle 53 for the inner edge of the opening of the limiting shell 51 on the vehicle wall to be clamped.
[0042] The side of the block 54 away from the baffle 53 is a guiding arc surface 541. When the limiting shell 51 is installed and fixed, the limiting shell 51 can be inserted into the opening on the vehicle wall and pressed with force so that the inner edge of the opening accommodating the limiting shell 51 is inserted into the limiting gap between the block 54 and the baffle 53 along the guiding arc surface 541. This arrangement facilitates the installation and fixation of the limiting shell 51.
[0043] Reference Figure 5 A traction ring 31 is fixedly provided on the side of the traction rod 3 away from the spring roller blind 1 , and the outer edge of the traction ring 31 is rounded, so that the user can pull the traction rod 3 and the curtain body 2 through the traction ring 31 .
[0044] Reference Figure 6 , two locking members 5 on the same horizontal plane are a group, and the vehicle wall has two groups of locking members 5 distributed along the height direction. With this arrangement, the traction rod 3 can be fixed at different heights, that is, the curtain can cover the lathe to different degrees. In other embodiments, the number of locking members 5 can also be set to three or four groups according to actual needs, and the specific number is not unique.
[0045] The implementation principle of the embodiment of the present application is:
[0046] By cooperating with the limiting shell 51 and the hook 4, since the limiting shell 51 is embedded in the vehicle wall, the influence of the pull-down curtain on the passengers during use is reduced, thereby improving its use performance.
[0047] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0048] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A pull-down curtain locking device for a train, comprising a spring curtain roller (1) fixedly mounted on a train wall and a curtain body (2) wound around the spring curtain roller (1), wherein a traction rod (3) is fixedly mounted on the curtain body (2) away from the spring curtain roller (1); It is characterized in that Hooks (4) are fixedly provided at both ends of the traction rod (3), and a locking member (5) for limiting and locking the hook (4) is provided below the spring curtain roller (1), the locking member (5) comprising two limiting shells (51) embedded in the vehicle wall, and a limiting cavity (511) for the hook (4) to be placed and locked is provided on the limiting shell (51).
2. A train pull-down curtain locking device according to claim 1, characterized in that: The inner edge of the opening of the limiting cavity (511) is a guide fillet (512).
3. A train pull-down curtain locking device according to claim 1, characterized in that: The limiting shell (51) is fixedly provided with a baffle (53) on the outer edge of the opening of the limiting cavity (511), and a clamping block (54) is fixedly provided on the outer surface of the limiting shell (51), and a limiting gap is preset between the clamping block (54) and the baffle (53) for the inner edge of the opening of the limiting shell (51) on the vehicle wall to be clamped.
4. A train pull-down curtain locking device according to claim 3, characterized in that: The side surface of the clamping block (54) away from the baffle (53) is a guiding arc surface (541).
5. A train pull-down curtain locking device according to claim 1, characterized in that: A magnet block (52) is fixedly provided on the outer surface of the limiting shell (51) facing the spring roller shutter device (1), and the hook (4) is made of a material that can be attracted by the magnet block (52).
6. A train pull-down curtain locking device according to claim 1, characterized in that: A fixing sleeve (41) is fixedly provided on the side surface of the hook (4), and the fixing sleeve (41) is fixedly sleeved on the outer peripheral surface of the end of the traction rod (3).
7. A train pull-down curtain locking device according to claim 1, characterized in that: A traction ring (31) is fixedly provided on the side of the traction rod (3) away from the spring curtain roller (1).
8. A train pull-down curtain locking device according to claim 7, characterized in that: The outer edge of the traction pull ring (31) is rounded.