Case cabinet door lock fastener for high-speed rail train

Abstract

The utility model discloses a case cabinet door lock fastener for a high-speed train, which comprises a case cabinet door lock fastener main body, and the case cabinet door lock fastener main body comprises a cabinet door body and a case fixing plate. A fixed box body is fixedly mounted in the middle of one side of the cabinet door body through a screw; a lock shaft is mounted on the surface of one side, extending to the cabinet door body, of the interior of the fixed box body; by designing the stability control mechanism, when the cabinet door lock fastener main body locks, installs and adjusts a lock catch on a cabinet door body and drives the lock catch to rotate through a lock shaft, a fixing ring rotates along with the lock catch, and a rotating control block is driven to be located in a rotating control groove and is smoothly controlled by a ball in a rotating mode, so that the fixing ring and the lock catch are stably controlled and adjusted; and stable control is still achieved when gaps occur due to friction generated by frequent rotation adjustment, the lock catch is conveniently and stably clamped to the outer surface of the clamping column to be locked and fixed, and the stability control performance and the locking effect of the cabinet door body installed on the high-speed train case through the case cabinet door lock fastener body are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-speed train chassis cabinet door lock fasteners, specifically relating to a type of chassis cabinet door lock fastener. Background Technology

[0002] The chassis is a box that is fixedly installed on the high-speed train for signal control installation. After the chassis is fixedly installed, it needs to be installed with a cabinet door for locking and protection. It is usually fixed by cabinet door locking fasteners. The existing locking fasteners are reinforcement fasteners used for locking the cabinet door on the high-speed train chassis, which facilitates effective locking and protection.

[0003] Existing cabinet door locking fasteners used on high-speed trains for locking and securing chassis cabinet doors involve directly using a tool to engage the locking shaft with the latch. However, prolonged use after installation can lead to friction between the locking shaft and the interior of the mounting box, creating gaps. These gaps make stable control difficult, causing the locking shaft and latch to wobble and become unstable, resulting in unstable locking and reduced locking effectiveness. This compromises the stability and locking performance of the cabinet door when installed on the high-speed train chassis. Therefore, this invention proposes a new type of chassis cabinet door locking fastener for high-speed trains. Utility Model Content

[0004] The purpose of this utility model is to provide a cabinet door locking fastener for high-speed trains, in order to solve the problem mentioned in the background art that when the cabinet door locking fastener is used to lock and fix the cabinet door on a high-speed train, long-term use can easily cause friction between the locking shaft and the inside of the fixing box, resulting in gaps. When gaps appear, it is not easy to control the stability, causing the locking shaft and the lock buckle to shake and become unstable, thus making the locking unstable and reducing the locking effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed train chassis cabinet door lock fastener, comprising a chassis cabinet door lock fastener body, the chassis cabinet door lock fastener body including a cabinet door body and a chassis fixing plate, a locking shaft extending from the interior of a fixing box to the side surface of the cabinet door body is fixedly installed by screws at the middle position of one side of the cabinet door body, the outer surface of the locking shaft is fixed with a latch, a torsion spring is sleeved on the side of the latch on the outer surface of the locking shaft, one end of the torsion spring is fixed to the interior of the fixing box body by screws, the other end of the torsion spring is fixed to the surface of the latch by screws, a locking post is provided inside the chassis fixing plate, and the chassis cabinet door lock fastener body is also provided with:

[0006] A stabilizing mechanism, comprising a fixed mounting assembly disposed on the outer surface of the locking shaft on one side of the latch, wherein a control assembly is disposed at the connection between the interior of the fixed mounting assembly and the inner side of the fixed housing, and a rolling assembly is disposed on the surface of the control assembly;

[0007] A reinforced locking mechanism is provided, and the reinforced locking mechanism includes a reinforced locking component disposed at the bottom of the interior of the fixed housing, wherein a limit sliding component is provided on the side of the reinforced locking component.

[0008] Preferably, the fixed mounting assembly includes a retaining ring fitted onto the outer surface of the lock shaft on the other side of the latch, and the inner surface of the retaining ring is fixed to the side of the latch by welding.

[0009] Preferably, the control component includes a rotation control groove formed inside the fixed ring, with rotation control blocks provided at both ends of the rotation control groove, and a connector integrally provided on the surface of the rotation control block, the end of the connector being fixed to the inner side of the fixed box by bolts.

[0010] Preferably, the internal structure of the rotation control block matches that of the rotation control groove, and the connecting body and the interior of the fixed ring are rotatably connected through the rotation control block and the rotation control groove.

[0011] Preferably, the rolling assembly includes rolling grooves formed on both sides of the rotation control block, with balls rolling inside the rolling grooves and the balls contacting the inner surface of the rotation control grooves.

[0012] Preferably, the reinforcing locking assembly includes a movable groove formed at the bottom of the fixed box, a pressing plate is provided inside the movable groove, an elastic block is provided at the connection between the end of the pressing plate and the inside of the movable groove, and the end of the pressing plate matches the surface structure of the buckle.

[0013] Preferably, the limiting sliding assembly includes a limiting groove formed at the top of the inside of the moving groove, a limiting block is provided on the upper surface of one end of the extrusion plate, and the limiting block is slidably connected to the inside of the limiting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By designing a stabilizing mechanism, when the main body of the cabinet door locking fastener is installed and adjusted to lock the cabinet door, the locking shaft drives the fastener to rotate, causing the fixing ring to rotate accordingly. This, in turn, causes the rotation control block to rotate smoothly within the rotation control groove, controlled by the ball bearings. This ensures stable control of the fixing ring and the fastener during rotation adjustment. Even when frequent rotation adjustments cause friction and gaps, the control remains stable, facilitating the fastener to lock securely onto the outer surface of the locking post. This improves the stability and locking effect of the cabinet door when installed on the high-speed train chassis via the main body of the cabinet door locking fastener. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged structural diagram of section A;

[0018] Figure 3 This is a top view of the fixed box body, latch and locking shaft of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram of section B;

[0020] Figure 5 This is a cross-sectional view of the fixed ring, rotation control block, and ball bearings of this utility model.

[0021] Figure 6 This is a cross-sectional structural diagram of the chassis fixing plate, fixing box and extrusion plate of the present invention in the locked state;

[0022] In the diagram: 100, Cabinet door lock fastener body; 101, Cabinet door body; 102, Fixing box body; 1021, Extrusion plate; 1022, Limiting block; 1023, Limiting groove; 1024, Elastic block; 1025, Moving groove; 103, Locking shaft; 104, Cabinet fixing plate; 105, Engaging post; 106, Locking buckle; 1061, Fixing ring; 1062, Connecting body; 1063, Rotation control groove; 1064, Rotation control block; 1065, Rolling groove; 1066, Ball bearing; 107, Torsion spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 6 This utility model provides a technical solution: a high-speed train chassis cabinet door locking fastener, including a chassis cabinet door locking fastener body 100. The chassis cabinet door locking fastener body 100 includes a cabinet door 101 and a chassis fixing plate 104. A locking shaft 103 is fixedly installed at the middle position of one side of the cabinet door 101 by screws. The fixing box 102 extends from the inside of the fixing box 102 to the surface of one side of the cabinet door 101. A locking buckle 106 is fixed on the outer surface of the locking shaft 103 on the fixing box 102. A torsion spring 107 is fitted onto the outer surface of the locking shaft 103 on the side. One end of the torsion spring 107 is fixed to the inside of the fixed box 102 by screws, and the other end of the torsion spring 107 is fixed to the surface of the latch 106 by screws. A locking post 105 is provided inside the chassis fixing plate 104. When the cabinet door 101 is closed, the deformation of the torsion spring 107 causes the latch 106 and the locking shaft 103 to rotate, locking the latch 106 onto the outer surface of the locking post 105 and securing it. The main body 100 of the chassis door locking fastener is also provided with:

[0025] The stabilizing mechanism includes a fixed mounting component located on the outer surface of the locking shaft 103 on one side of the latch 106. A control component is provided at the connection between the inside of the fixed mounting component and the inner side of the fixed box 102. A rolling component is provided on the surface of the control component. When the main body 100 of the cabinet door locking fastener is locked to the cabinet door 101, the latch 106 is always stably controlled and locked by the stabilizing mechanism during adjustment, which makes it less likely for the latch 106 to shake and become unstable. This makes it easy for the latch 106 to be stably engaged and locked on the outer surface of the locking post 105.

[0026] In order to facilitate the connection of the latch 106 and the rotation control via the fixed mounting assembly, in this embodiment, preferably, the fixed mounting assembly includes a fixing ring 1061 fitted onto the outer surface of the locking shaft 103 on the other side of the latch 106. The inner surface of the fixing ring 1061 is fixed to the side of the latch 106 by welding, which can drive the fixing ring 1061 to rotate, facilitating stable rotation control operation.

[0027] To facilitate stable rotation of the latch 106 via the control component and prevent friction-induced instability during prolonged rotation, in this embodiment, the control component preferably includes a rotation control groove 1063 formed inside the fixing ring 1061. Rotation control blocks 1064 are provided at both ends of the rotation control groove 1063. A connector 1062 is integrally formed on the surface of the rotation control block 1064. The end of the connector 1062 is fixed to the inner side of the fixing box 102 by bolts. This allows the latch 106 to rotate, causing the fixing ring 1061 to rotate accordingly, and keeps the rotation control block 1064 within the rotation control groove 1063 for stable rotation control, thereby making the latch 106 more stably locked and reinforced.

[0028] In order to facilitate the smooth rotation control of the rotation control block 1064 within the rotation control groove 1063 via the rolling assembly, in this embodiment, preferably, the rolling assembly includes rolling grooves 1065 formed on both sides of the rotation control block 1064. Balls 1066 roll inside the rolling grooves 1065, and the balls 1066 contact the inner surface of the rotation control groove 1063. This allows the balls 1066 to roll within the rolling grooves 1065 when the rotation control block 1064 rotates within the rotation control groove 1063, thus ensuring smooth rotation control of the rotation control block 1064.

[0029] The locking mechanism is reinforced, and the reinforced locking mechanism includes a reinforced locking component located at the bottom of the fixed housing 102. The side of the reinforced locking component is provided with a limit sliding component. After the main body 100 of the chassis door locking fastener is locked to the cabinet door 101, the reinforced locking mechanism further locks and fixes the latch 106, thereby improving the locking and fastening of the main body 100 of the chassis door locking fastener to the cabinet door 101 on the high-speed train chassis.

[0030] In order to facilitate the tightening and locking of the latch 106 by strengthening the locking assembly, in this embodiment, preferably, the strengthening locking assembly includes a movable groove 1025 formed at the bottom of the fixed box 102. The movable groove 1025 is internally limited by a pressing plate 1021. An elastic block 1024 is provided at the connection between the end of the pressing plate 1021 and the inside of the movable groove 1025. The end of the pressing plate 1021 matches the surface structure of the latch 106. After the latch 106 is locked, the end of the pressing plate 1021 can be pressed against the surface of the latch 106 by the deformation of the elastic block 1024 to strengthen and lock the installation.

[0031] In order to facilitate the stable movement, compression, and locking installation of the extrusion plate 1021 by means of the limiting sliding assembly, in this embodiment, preferably, the limiting sliding assembly includes a limiting groove 1023 formed at the top of the inside of the moving groove 1025, and a limiting block 1022 is provided on the upper surface of one end of the extrusion plate 1021. The limiting block 1022 is slidably connected to the inside of the limiting groove 1023, so that the limiting block 1022 can be slidably controlled inside the limiting groove 1023 when the extrusion plate 1021 moves elastically, thereby stabilizing and reinforcing the extrusion plate 1021 by compression.

[0032] The working principle and usage process of this utility model: When using this type of high-speed train chassis cabinet door locking fastener, firstly, one side of the cabinet door 101 is installed on the signal control chassis of the high-speed train through a hinge. Then, the chassis fixing plate 104 is fixedly installed at the installation position on one side of the chassis. After installation, when the cabinet door 101 is closed, the torsion spring 107 deforms and drives the latch 106 and the locking shaft 103 to rotate, thereby locking the latch 106 onto the outer surface of the locking post 105 and fixing it in place. This makes it easy to lock and fix the cabinet door 101 to the surface of the high-speed train chassis through the main body 100 of the chassis cabinet door locking fastener.

[0033] Then, after the cabinet door 101 is locked and fixed, the elastic block 1024 deforms again, causing the pressing plate 1021 to slide inside the moving groove 1025. When the pressing plate 1021 slides, it causes the limiting block 1022 to slide inside the limiting groove 1023, thereby pressing the end of the pressing plate 1021 firmly against the surface of the latch 106 to strengthen the fixed installation of the latch 106. This strengthens the fixed installation of the latch 106 when it is locked and fixed, improves the locking and fastening of the cabinet door fastener body 100 on the high-speed train chassis, and directly squeezes the pressing plate 1021 to close inside the moving groove 1025 when the latch 106 is opened.

[0034] Finally, when the main body 100 of the chassis door locking fastener is locked and the adjusting latch 106 is installed on the cabinet door 101, the latch 106 is rotated by the locking shaft 103. At this time, the fixing ring 1061 rotates along with it, and the rotation control block 1064 is rotated inside the rotation control groove 1063. At the same time, when the rotation control block 1064 rotates, the ball 1066 contacts the inner surface of the rotation control groove 1063 and rolls inside the rolling groove 1065. This stabilizes the fixing ring 1061 and the latch 106 during rotation adjustment. Even when frequent rotation adjustment causes friction and gaps, the control remains stable, and the latch 106 is not prone to shaking or instability. This makes it easy for the latch 106 to be stably engaged and locked on the outer surface of the locking post 105, improving the stability and locking effect of the cabinet door 101 installed on the high-speed train chassis by the main body 100 of the chassis door locking fastener.

[0035] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed train chassis cabinet door locking fastener, comprising a chassis cabinet door locking fastener body (100), wherein the chassis cabinet door locking fastener body (100) includes a cabinet door body (101) and a chassis fixing plate (104), wherein a locking shaft (103) is fixedly installed at the middle position of one side of the cabinet door body (101) by screws, the locking shaft (103) extending from the interior of the fixing box (102) to the surface of one side of the cabinet door body (101) and the locking shaft (103) The outer surface of the mounting plate (104) is fixed to the fixed housing (102) with a latch (106). A torsion spring (107) is fitted onto the side of the latch (106) on the outer surface of the locking shaft (103). One end of the torsion spring (107) is fixed to the interior of the fixed housing (102) with a screw, and the other end of the torsion spring (107) is fixed to the surface of the latch (106) with a screw. A locking post (105) is provided inside the mounting plate (104). The characteristic feature is that: The main body (100) of the cabinet door lock fastener is also provided with: The stabilizing mechanism includes a fixed mounting assembly disposed on the outer surface of the locking shaft (103) on one side of the latch (106), a control assembly is disposed at the connection between the interior of the fixed mounting assembly and the inner side of the fixed box (102), and a rolling assembly is disposed on the surface of the control assembly; The reinforced locking mechanism includes a reinforced locking component disposed at the bottom of the interior of the fixed housing (102), and a limit sliding component is provided on the side of the reinforced locking component.

2. The high-speed train chassis cabinet door lock fastener according to claim 1, characterized in that: The fixed mounting assembly includes a retaining ring (1061) fitted onto the outer surface of the lock shaft (103) on the other side of the latch (106), and the inner surface of the retaining ring (1061) is fixed to the side of the latch (106) by welding.

3. The high-speed train chassis cabinet door lock fastener according to claim 2, characterized in that: The control component includes a rotation control groove (1063) inside the fixed ring (1061). Rotation control blocks (1064) are provided at both ends of the rotation control groove (1063). A connector (1062) is integrally provided on the surface of the rotation control block (1064). The end of the connector (1062) is fixed to the inner side of the fixed box (102) by bolts.

4. A high-speed train chassis cabinet door lock fastener according to claim 3, characterized in that: The internal structure of the rotation control block (1064) matches that of the rotation control groove (1063), and the internal structure of the connecting body (1062) and the fixing ring (1061) are rotatably connected through the rotation control block (1064) and the rotation control groove (1063).

5. A high-speed train chassis cabinet door lock fastener according to claim 3, characterized in that: The rolling assembly includes rolling grooves (1065) formed on both sides of the rotation control block (1064), and rolling balls (1066) roll inside the rolling grooves (1065), with the rolling balls (1066) in contact with the inner surface of the rotation control groove (1063).

6. A high-speed train chassis cabinet door lock fastener according to claim 1, characterized in that: The reinforced locking assembly includes a movable groove (1025) formed at the bottom of the interior of the fixed box (102). A pressing plate (1021) is provided inside the movable groove (1025). An elastic block (1024) is provided at the connection between the end of the pressing plate (1021) and the interior of the movable groove (1025). The end of the pressing plate (1021) matches the surface structure of the buckle (106).

7. A high-speed train chassis cabinet door lock fastener according to claim 6, characterized in that: The limiting sliding assembly includes a limiting groove (1023) formed at the top of the inside of the moving groove (1025), and a limiting block (1022) is provided on the upper surface of one end of the extrusion plate (1021), and the limiting block (1022) is in a limiting sliding connection with the inside of the limiting groove (1023).

Images