Small compartment door lock for freight train

Abstract

The utility model discloses a small compartment door lock for a freight train, relates to the technical field of compartment door locks of freight trains, and can solve the problem that the existing small compartment door lock for the freight train easily causes looseness of a spring bolt or a lock component under the condition that a railway is uneven or the running speed is relatively high, so that the compartment door lock cannot be unlocked. The locking effect of the small door lock of the carriage is enhanced through reasonable cooperation of the connecting component, the pressure spring component and the spring component. The components can effectively prevent the spring bolt or other lockset components from loosening due to vibration or impact in the running process of a train, it is ensured that the compartment door is always kept in a locked state when not unlocked, the compression spring and the rebound compression spring are adopted, the elasticity and the buffering effect are improved, vibration can be better absorbed under the condition that a railway is not flat, and the service life of the compartment door is prolonged. The influence on the lock is reduced, and the carriage door is prevented from being opened accidentally due to vibration.

Description

TECHNICAL FIELD

[0001] The utility model relates to freight train carriage door lock technical field, concretely relates to a small door lock for freight train carriage. BACKGROUND

[0002] The carriage door of freight train is one of the key components to ensure the safety of goods in the train transportation process. The design and function of the small door lock used in the carriage are directly related to the safety of goods, the running stability of train and the safety of personnel in the transportation process.

[0003] However, the existing small door lock for freight train carriage often faces the problems of poor sealing and unstable structure in actual use, especially in the case of uneven railway or high running speed, the inertia force and vibration generated by the train will repeatedly pull the door lock, causing the lock tongue or lock component to loosen, and eventually causing the carriage door to open automatically without unlocking. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that the existing small door lock for freight train carriage is prone to loosen the lock tongue or lock component and eventually causes the carriage door to open automatically without unlocking in the case of uneven railway or high running speed in the prior art, the present application provides a small door lock for freight train carriage to solve the above problems.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0006] A small door lock for freight train carriage, comprising a panel component and a movable rod component, further comprising a connecting component, a compression spring component, a spring component and a rivet group, the panel component comprises a lock panel, the lock panel is detachably connected with the carriage, the connecting component is arranged on the top surface of the lock panel, a lock cover is protruded inside the lock panel, two fixing holes are arranged on the inner top surface of the lock cover, and the fixing holes are arranged in the same row;

[0007] The movable rod component comprises a connecting rod and a clamping column, one end of the connecting rod is movably connected to one end of the connecting component, the other end of the connecting rod extends to the inside of the lock cover through the fixing hole, and is fixedly connected with the clamping column, the other end of the connecting component is also movably connected with a locking component for locking the carriage door;

[0008] The compression spring component is movably connected between the locking component and the connecting rod through the rivet group, one end of the spring component is movably connected with the rivet group, and the other end of the spring component is movably connected with a second pin shaft penetrating through the connecting component and the connecting rod.

[0009] As a further improvement of the utility model, the connecting component comprises a connecting seat, first connecting holes and second connecting holes are formed on both sides of the long side of the connecting seat, a first pin shaft is inserted into the first connecting hole, a second pin shaft is inserted into the second connecting hole, the locking component is hinged to the first pin shaft, and the connecting rod is hinged to the second pin shaft.

[0010] As a further improvement of the utility model, the rivet group comprises a first rivet and a second rivet, the first rivet is inserted into the locking component, the second rivet is inserted into the connecting rod, and the two ends of the compression spring component are movably connected to the first rivet and the second rivet respectively.

[0011] As a further improvement of the utility model, the compression spring component comprises a compression spring shell and a rebound compression spring, the two ends of the compression spring shell are movably connected to the first rivet and the second rivet respectively, and at least two rebound compression springs are movably connected between the first rivet and the second rivet.

[0012] As a further improvement of the utility model, the spring component comprises a spring and a connecting plate, one end of the spring is connected to the outer wall of the second rivet, one end of the connecting plate is connected to the outer wall of the second pin shaft, and the other end of the spring is fixedly connected to the other end of the connecting plate.

[0013] As a further improvement of the utility model, the locking component comprises a lock tongue, first through holes and second through holes are formed in the lock tongue, the first rivet is inserted into the first through hole, and the first pin shaft is inserted into the second through hole.

[0014] As a further improvement of the utility model, a plurality of mounting holes are further formed in the lock panel, four mounting holes are formed at the four corners of the lock panel respectively.

[0015] Compared with the prior art, the technical scheme of the utility model has the following advantages and effects:

[0016] 1. In the application, the reasonable cooperation of the connecting component, the compression spring component and the spring component enhances the locking effect of the carriage door lock. These components can effectively prevent the lock tongue or other lock components from loosening due to vibration or impact during train operation, ensure that the carriage door always remains locked when it is not unlocked, increase the elasticity and buffering effect by using compression springs and rebound compression springs, better absorb vibration in the case of uneven railway, reduce the impact on the lock, avoid accidental opening of the carriage door due to vibration, and then ensure the close connection of each component by the cooperation of the rivet group and the two pin shafts, improve the mechanical strength and anti-aging ability of the entire lock, and prolong the service life of the lock. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0018] Figure 1 is the isometric view of the present application;

[0019] Figure 2 is the isometric view of the present application;

[0020] Figure 3 is the front view of the present application;

[0021] Figure 4 is the left view of the present application;

[0022] Figure 5 is Figure 4 is the sectional view along the section symbol A-A;

[0023] Figure 6 is the bottom view of the present application.

[0024] In the figure: 10, panel part; 110, lock panel; 120, locking cover; 130, mounting hole; 140, fixing hole; 20, movable rod part; 210, connecting rod; 220, clamping column; 30, locking part; 310, lock tongue; 320, first through hole; 330, second through hole; 40, compression spring part; 410, compression spring shell; 420, rebound compression spring; 50, connecting part; 510, connecting seat; 520, first connecting hole; 530, second connecting hole; 60, rivet group; 610, first rivet; 620, second rivet; 70, first pin shaft; 80, second pin shaft; 90, spring part; 910, spring; 920, connecting plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the application, without making creative efforts, fall within the scope of the application.

[0027] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, if the terms "first", "second" and the like appear in the description of the application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In addition, if the terms "horizontal", "vertical" and the like appear in the description of the application, they do not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0030] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0031] Embodiments:

[0032] A kind of car door lock for freight train, including panel component 10 and movable lever component 20, still including connecting component 50, compression spring component 40, spring component 90 and rivet group 60, the panel component 10 includes lock panel 110, the lock panel 110 is detachably connected with car, the connecting component 50 is arranged at the top surface of the lock panel 110, the lock panel 110 is internally provided with locking cover 120, 2 fixed holes 140 are formed in the inner top surface of the locking cover 120, and the fixed holes 140 are arranged in a row;

[0033] The movable lever component 20 includes connecting rod 210 and clamping column 220, one end of the connecting rod 210 is movably connected to one end of the connecting component 50, the other end of the connecting rod 210 extends to the inside of the locking cover 120 through the fixed hole 140, and is fixedly connected with the clamping column 220, the other end of the connecting component 50 is also movably connected with locking component 30 for locking car door;

[0034] The compression spring component 40 is movably connected between the locking component 30 and the connecting rod 210 by the rivet group 60, one end of the spring component 90 is movably connected with the rivet group 60, and the other end of the spring component 90 is movably connected with the second pin shaft 80 penetrating the connecting component 50 and the connecting rod 210.

[0035] It is explained that the lock panel 110 can be directly detachably connected with the car, the top surface of the locking cover 120 has two fixed holes 140 arranged in a row for receiving and guiding the connecting rod 210 part of the movable lever component 20, one end of the connecting rod 210 is connected with the connecting component 50, and the other end extends into the locking cover 120 through the fixed hole 140, and the main function is to realize the locking or unlocking function by moving, the clamping column 220 is fixedly connected with the other end of the connecting rod 210, and the clamping column 220 can fix the structure of the door during locking to prevent the door from being opened, the compression spring component 40 ensures that the locking mechanism automatically returns to the original position after operation, maintains the locking state, and avoids the lock from being loose or unlocked. It is movably connected between the locking component 30 and the connecting rod 210 by the rivet group 60, provides necessary elastic support, and the spring component 90 is used to provide additional elastic pressure, so that the locking component can quickly return to the locking state. One end of the spring 910 is connected with other components by the rivet group 60, and the other end is movably connected with the second pin shaft 80 penetrating the connecting component 50 and the connecting rod 210, so that the spring 910 can accurately apply pressure when working.

[0036] Specifically, when the carriage door needs to be locked, the user pushes the operating part on the lock panel 110 to drive the connecting rod 210 to move, the connecting rod 210 passes through the fixed hole 140 and locks the door through the clamping column 220. The compression spring and the spring part 90 ensure that the lock can quickly recover and maintain a tightly locked state during operation. The connecting part 50, the movable rod part 20 and the locking part 30 work together to ensure efficient and reliable operation of the lock and prevent accidents during transportation of goods.

[0037] In combination with the drawings Figures 1-6 As shown, the connecting part 50 includes a connecting seat 510, the first connecting hole 520 and the second connecting hole 530 are opened along the two sides of the long side, the first pin shaft 70 is inserted into the first connecting hole 520, the second pin shaft 80 is inserted into the second connecting hole 530, the locking part 30 is hinged with the first pin shaft 70, and the connecting rod 210 is hinged with the second pin shaft 80.

[0038] As an illustration, the design of the connecting seat 510 enables the stable connection of each part of the lock, and the opening of the first connecting hole 520 and the second connecting hole 530 ensures that the locking part 30 and the connecting rod 210 can be correctly hinged to realize the functions of locking and unlocking. The first pin shaft 70 and the second pin shaft 80 can ensure the firmness of the connection and the smoothness of the operation. Through the first pin shaft 70, the locking part 30 can be flexibly rotated to adapt to different locking states of the door. The second pin shaft 80 ensures the stable connection of the connecting rod 210, so that the connecting rod 210 can smoothly pass through the fixed hole 140 to drive the clamping column 220 to lock.

[0039] In combination with the drawings Figures 1-6 As shown, the rivet group 60 includes a first rivet 610 and a second rivet 620, the first rivet 610 is inserted into the locking part 30, the second rivet 620 is inserted into the connecting rod 210, and the two ends of the compression spring part 40 are movably connected to the first rivet 610 and the second rivet 620 respectively.

[0040] It is explained that the design of the compression spring part 40 enhances the stability and durability of the lock. When the lock is in the locked state, the compression spring part 40 can provide a certain elastic force, so that the clamping column 220 can be more tightly fitted in the fixed hole 140 of the door frame, preventing the lock from being accidentally unlocked due to vibration or external force impact. At the same time, the two ends of the compression spring part 40 are movably connected to the first rivet 610 and the second rivet 620 respectively, which not only ensures the stability and reliability of the compression spring part 40, but also allows the compression spring part 40 to be adjusted as needed to adapt to the locking needs of different door locks. The insertion method of the first rivet 610 and the second rivet 620 ensures that the compression spring part 40 can be firmly fixed inside the lock and is not easy to fall off or be damaged. Through such design, the goods can be more reliably protected during transportation to prevent accidents.

[0041] In combination with the drawings of the specification Figures 1-6 As shown, the compression spring part 40 includes a compression spring housing 410 and a rebound spring 420, the compression spring housing 410 is movably connected to the first rivet 610 and the second rivet 620 at both ends, and the rebound spring 420 is arranged at least 2 and movably connected between the first rivet 610 and the second rivet 620.

[0042] It is explained that the compression spring housing 410 as a protective layer of the rebound spring 420 can effectively prevent the rebound spring 420 from being damaged or deformed during use. At the same time, the movable connection at both ends of the compression spring housing 410 makes the compression spring part 40 more flexible in response when stressed, thereby improving the locking effect and durability of the lock. The arrangement of at least 2 rebound springs 420 further enhances the rebound force and stability of the compression spring part 40, so that the lock can still maintain good locking effect after long-term use. In addition, the design of the same row of movable connection also makes the interaction between the rebound springs 420 more uniform, thereby avoiding the situation that the entire compression spring part 40 fails due to damage of individual rebound springs 420. Through such design, the stability and safety of the lock can be further improved to provide more reliable protection for the transportation of goods.

[0043] In combination with the drawings of the specification Figures 1-6 As shown, the spring part 90 includes a spring 910 and a connecting plate 920, one end of the spring 910 is connected to the outer wall of the second rivet 620, one end of the connecting plate 920 is connected to the outer wall of the second pin shaft 80, and the other end of the spring 910 is fixedly connected to the other end of the connecting plate 920.

[0044] It is worth mentioning that the spring component 90 not only enhances the flexibility and stability of the lock, but also improves the durability. One end of the spring 910 is connected to the outer wall of the second rivet 620, and such connection mode enables the spring 910 to distribute the force more evenly when subjected to force, thereby avoiding damage caused by force concentration. At the same time, one end of the connecting plate 920 is connected to the outer wall of the second pin shaft 80, and such design enables the connecting plate 920 to move flexibly with the opening and closing of the lock, further enhancing the flexibility of the lock. The other end of the spring 910 is fixedly connected to the other end of the connecting plate 920, and such fixed connection not only ensures the stability between the spring 910 and the connecting plate 920, but also enables the lock to fit more closely when closed, thereby improving the locking effect of the lock. Through such design, the spring component 90 can better cooperate with other components of the lock to realize the locking function of the lock, providing more reliable protection for the transportation of goods.

[0045] In combination with the drawings Figures 1-6 As shown, the locking component 30 includes a lock tongue 310, and the lock tongue 310 is internally provided with a first through hole 320 and a second through hole 330. The first rivet 610 is inserted into the first through hole 320, and the first pin shaft 70 is inserted into the second through hole 330.

[0046] It is worth mentioning that the first through hole 320 and the second through hole 330 internally provided in the lock tongue 310 are respectively used for inserting the first rivet 610 and the first pin shaft 70. Such design enables the lock tongue 310 to be firmly connected to the lock and not easy to loosen or fall off. The first rivet 610 is inserted into the first through hole 320, which not only plays a role in fixing the lock tongue 310, but also enables the lock tongue 310 to work more stably when subjected to force. At the same time, the first pin shaft 70 is inserted into the second through hole 330, and such connection mode enables the lock tongue 310 to rotate flexibly, thereby realizing the opening and closing function of the lock. Through such design, the locking component 30 can better cooperate with other components of the lock to realize the locking and unlocking function of the lock, providing more secure protection for the transportation of goods.

[0047] It is worth mentioning that a plurality of mounting holes 130 are also internally provided in the lock panel 110, and the mounting holes 130 are provided in four, and are respectively provided at the four corners of the lock panel 110.

[0048] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A small door lock for a freight train carriage, comprising a panel component (10) and a movable lever component (20), characterized in that... It also includes a connecting component (50), a compression spring component (40), a spring component (90), and a rivet assembly (60). The panel component (10) includes a lock panel (110), which is detachably connected to the carriage. The connecting component (50) is disposed on the top surface of the lock panel (110). A locking cover (120) is protruding inside the lock panel (110). Two fixing holes (140) are opened on the top surface of the locking cover (120), and the fixing holes (140) are opened in the same row. The movable rod component (20) includes a connecting rod (210) and a locking pin (220). One end of the connecting rod (210) is movably connected to one end of the connecting component (50), and the other end of the connecting rod (210) extends through the fixing hole (140) into the interior of the locking cover (120) and is fixedly connected to the locking pin (220). The other end of the connecting component (50) is also movably connected to a locking component (30) for locking the carriage door. The compression spring component (40) is movably connected between the locking component (30) and the connecting rod (210) via the rivet group (60). One end of the spring component (90) is movably connected to the rivet group (60), and the other end of the spring component (90) is movably connected to the second pin (80) that passes through the connecting component (50) and the connecting rod (210).

2. A small door lock for a freight train carriage according to claim 1, characterized in that, The connecting component (50) includes a connecting seat (510), which has a first connecting hole (520) and a second connecting hole (530) on both sides of its long side. A first pin (70) is inserted into the first connecting hole (520), and a second pin (80) is inserted into the second connecting hole (530). The locking component (30) is hinged to the first pin (70), and the connecting rod (210) is hinged to the second pin (80).

3. A small door lock for a freight train carriage according to claim 2, characterized in that, The rivet assembly (60) includes a first rivet (610) and a second rivet (620). The first rivet (610) is inserted into the locking component (30), and the second rivet (620) is inserted into the connecting rod (210). The two ends of the compression spring component (40) are movably connected to the first rivet (610) and the second rivet (620), respectively.

4. A small door lock for a freight train carriage according to claim 3, characterized in that, The compression spring component (40) includes a compression spring housing (410) and a rebound compression spring (420). The two ends of the compression spring housing (410) are movably connected to the first rivet (610) and the second rivet (620), respectively. At least two rebound compression springs (420) are provided and are movably connected in the same row between the first rivet (610) and the second rivet (620).

5. A small door lock for a freight train carriage according to claim 4, characterized in that, The spring component (90) includes a spring (910) and a connecting plate (920). One end of the spring (910) is connected to the outer wall of the second rivet (620), one end of the connecting plate (920) is connected to the outer wall of the second pin (80), and the other end of the spring (910) is fixedly connected to the other end of the connecting plate (920).

6. A small door lock for a freight train carriage according to claim 5, characterized in that, The locking component (30) includes a locking tongue (310), which has a first through hole (320) and a second through hole (330) inside. The first rivet (610) is inserted into the first through hole (320), and the first pin (70) is inserted into the second through hole (330).

7. A small door lock for a freight train carriage according to claim 6, characterized in that, The lock panel (110) is also provided with a plurality of mounting holes (130), and there are four mounting holes (130) respectively located at the four corners of the lock panel (110).

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