High-stable bullet terminal row for rail transit

Abstract

The utility model discloses a kind of high-stable shell fragment terminal row for rail transit, including terminal row (1) and wire harness, the multiple terminals of the terminal row are fixed with wire harness, the both sides of the terminal row are fixed with support, the side of the support is fixed with fixed shell, the inside hollow of the fixed shell forms cavity, the inside fixed core of the cavity is fixed with.The inside of the fixed inner core is equipped with multiple through holes, the side fixed with fixed rod of the through hole, the side fixed with first clamping block of the fixed rod, the side close to first clamping block of the fixed rod is slidably connected with second clamping block, the through hole other side of the fixed inner core is slidably connected with sliding part, the side close to through hole of the sliding part is fixed with fixed part.High-stable anti-falling design: through the support structure of the clamping shaft piece and connecting piece cooperation of terminal row both sides, the wire harness of arbitrary angle can be firmly fixed, even when encountering violent vibration, wire harness also cannot separate from the inside of terminal row.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically a high-stability spring contact terminal block for rail transit. Background Technology

[0002] In the field of rail transit, terminal blocks are key components for electrical connections, undertaking important functions such as fixing wire harnesses and transmitting current and signals. With the rapid development of the rail transit industry, the speed of train operation is constantly increasing, and the operating environment is becoming more and more complex and changeable, which makes the performance requirements for terminal blocks increasingly stringent.

[0003] Currently, most common terminal blocks used in rail transit employ traditional fixed connection methods to secure wire harnesses. This method is highly susceptible to loosening or even detachment of the wire harnesses when subjected to severe vibrations, impacts, and frequent displacements during rail transit operation. This severely affects the stability of electrical connections, potentially leading to electrical faults and threatening train safety. Furthermore, traditional terminal blocks offer poor installation flexibility, making it difficult to adapt to wire harness installation requirements with different orientations and angles. This results in a cumbersome and inefficient installation process. Moreover, existing terminal block structures are poorly designed to buffer against external vibrations and impacts, failing to effectively protect internal components and wire harnesses. This makes it difficult to maintain stable electrical performance of the terminal blocks over the long term, increasing equipment maintenance costs and repair difficulties. Utility Model Content

[0004] The purpose of this invention is to provide a highly stable spring-loaded terminal block for rail transit, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a terminal block and a wire harness, wherein multiple terminals of the terminal block are each fixed with a wire harness, and both sides of the terminal block are fixed with support members, one side of the support member is fixed with a fixed outer shell, the inside of the fixed outer shell is hollow to form a cavity, and a fixed inner core is fixed inside the cavity.

[0006] The fixed inner core has multiple through holes inside. A fixing rod is fixed to one side of each through hole. A first locking block is fixed to one side of the fixing rod. A second locking block is slidably connected to the side of the fixing rod near the first locking block. A sliding member is slidably connected to the other side of the through hole of the fixed inner core. A fixing member is fixed to the side of the sliding member near the through hole. An operating member is fixed to the front surface of the sliding member.

[0007] Preferably, the support includes a clamping shaft, which is fixedly connected to both sides of the terminal block, and a connector is rotatably connected to the top of the clamping shaft.

[0008] Preferably, the fixing member includes a snap-fit ​​member, which is fixedly connected to one side of the sliding member, and a claw is fixed to one side of the snap-fit ​​member.

[0009] Preferably, the operating component includes a driving component, which is fixedly connected to a sliding component, and a handle is fixedly attached to the front surface of the driving component.

[0010] Preferably, the first card block and the second card block are trapezoidal in shape, and the bottom bases of the two trapezoids fit together.

[0011] Preferably, the latching member matches the latch claw and the first latching block matches the second latching block.

[0012] Preferably, a reserved wire harness is provided inside the cavity of the fixed outer shell and the fixed inner core near the terminal block.

[0013] Preferably, the through holes inside the fixed inner core match the wire harness.

[0014] Compared with the prior art, the beneficial effects of this utility model are: Shock absorption and electrical performance assurance: The hollow cavity inside the fixed housing not only provides ample installation space for internal components, but also effectively disperses and buffers external forces during external vibration or impact. The wire harnesses reserved inside the cavity can prevent the wire harnesses from becoming too short and taut due to external vibration, thereby preventing the connection between the terminal block and the wire harness from falling off, ensuring the long-term stability of the electrical performance of the terminal block, and ensuring the reliability of the electrical connection of the rail transit system.

[0015] Highly stable and anti-detachment design: The wire harness is fixed inside the terminal block by spring clips. At the same time, the support structure with clamping shaft and connecting parts is set on both sides of the terminal block, which allows the fixed shell to move in an arc shape. It can firmly fix the wire harness at any angle. Even if it encounters severe vibration during the operation of the rail transit system, the wire harness will not detach from the inside of the terminal block. This significantly improves the stability of the connection between the terminal block and the wire harness and reduces the risk of electrical failure caused by loose connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A frontal cross-sectional schematic diagram of the connection structure; Figure 3 for Figure 1 A schematic diagram of the assembly connection structure; Figure 4 for Figure 1 A schematic diagram of the left-side connection structure; Figure 5 for Figure 1 Enlarged schematic diagram of the connection structure.

[0017] In the diagram: 1. Terminal block, 2. Wire harness, 3. Clamping shaft, 4. Connector, 5. Fixed outer shell, 6. Fixed inner core, 7. Fixed rod, 8. First locking block, 9. Second locking block, 10. Sliding component, 11. Snap-fit ​​component, 12. Claw, 13. Driving component, 14. Handle. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-5 This utility model provides a high-stability spring-loaded terminal block technology solution for rail transit: it includes a terminal block 1 and a wire harness 2. The terminal block 1 is composed of multiple terminals, which are carriers for the fixed connection of the wire harness 2. The wire harness 2 is fixed in the terminal block 1 through springs. The wire harness 2 is fixed inside the multiple terminals of the terminal block 1. The wire harness 2 serves as the transmission medium for electrical connection and is responsible for transmitting current and signals between different electrical devices in the rail transit system.

[0020] Both sides of the terminal block 1 are fixed with support members, including clamping shaft members 3. The clamping shaft members 3 are fixedly connected to both sides of the terminal block. The clamping shaft members 3 can cooperate with the connecting members 4 to make the fixed housing 5 move in an arc shape, which is used to fix the wire harness 2 at any angle so that it will not be detached from the inside of the terminal block 1 due to severe vibration. The top of the clamping shaft member 3 is rotatably connected to the connecting member 4. The cooperation between the connecting member 4 and the clamping shaft member 3 allows the installer to flexibly adjust the fixed housing 5 according to the wire harness route, which is convenient for the wire harness to be connected to the terminal block. In the face of vibration and displacement, the fixed housing 5 can adjust its angle appropriately with the help of the connecting member 4 and the clamping shaft member 3 to alleviate external forces.

[0021] A fixed housing 5 is fixed on one side of the support. The hollow cavity inside the fixed housing 5 provides installation space for the internal components and can disperse and buffer external forces when subjected to external vibration or impact. The wire harness 2 reserved inside the cavity can ensure that the connection between the terminal block 1 and the wire harness 2 will not fall off due to the wire harness being too short and taut when subjected to external vibration, thus maintaining the stable electrical performance of the terminal block 1.

[0022] A fixed inner core 6 is fixed inside the cavity. Multiple through holes are formed inside the fixed inner core 6, and these through holes match the size of the wire harness 2. When the wire harness 2 passes through these through holes, the through holes provide precise guidance and positioning. Simultaneously, the cooperation of the first locking block 8, the second locking block 9, the locking member 11, and the claw 12 securely connects the wire harness 2 to the fixed inner core 6. A fixing rod 7 is fixed to one side of each through hole, providing a sliding track for the second locking block 9. The first locking block 8 is fixed to one side of the fixing rod 7. The first locking block 8 can expand when the locking member 11 and the locking claw 12 contact itself, thereby locking between the first locking block 8 and the second locking block 9, and thus squeezing and fixing the wire harness 2. The second locking block 9 is slidably connected to the side of the fixing rod 7 near the first locking block 8. The second locking block 9 can slide on the surface of the fixing rod 7. The second locking block 9 and the first locking block 8 are trapezoidal. Because the bottom is attached, it can expand when the locking claw 12 and the locking member 11 pass through the surface of the second locking block 9, thereby releasing the squeezing and fixing of the wire harness 2.

[0023] A sliding member 10 is slidably connected to the other side of the through hole of the fixed inner core 6. The sliding member 10 can move left and right within the fixed inner core 6 by the drive of the operating member, thereby driving the snap-fit ​​member 11 and the claw 12 to move, realizing the control of the position of the snap-fit ​​member 11 and the snap-fit ​​block 12, and completing the operation of fixing and releasing the wire harness 2. A fixing member is fixed on the side of the sliding member 10 near the through hole. The fixing member includes the snap-fit ​​member 11. The snap-fit ​​member 11 is fixedly connected to one side of the sliding member 10. The snap-fit ​​member 11 moves under the drive of the sliding member 10. Its main function is to cooperate with the first snap-fit ​​block 8, the second snap-fit ​​block 9 and the claw 12 to realize the compression and fixing of the wire harness 2. A claw 12 is fixed on one side of the snap-fit ​​member 11. The shape and size of the claw 12 match the first snap-fit ​​block 8 and the second snap-fit ​​block 9. When the snap-fit ​​member 11 moves under the drive of the sliding member 10, the claw 12 can be inserted into the gap between the first snap-fit ​​block 8 and the second snap-fit ​​block 9, thereby fixing the wire harness 2.

[0024] An operating component is fixed to the front surface of the slider 10. The operating component includes a driving component 13, which is fixedly connected to the slider 10. The driving component 13 can transmit the pulling force received by the handle 14 to the slider 10, thereby driving the locking component 11 and the claw 12. The handle 14 is fixed to the front surface of the driving component 13. The operator can operate the handle 14 by pushing and pulling to drive the driving component 13 and the slider 10 to move.

[0025] Working principle: When using a high-stability spring-loaded terminal block for rail transit, the wire harness 2 must first be connected to the terminal block 1 through the through holes of the fixed housing 5 and the fixed inner core 6. At the same time, a certain length of wire harness 2 is reserved inside the cavity of the fixed inner core 6. This reserved wire harness 2 can ensure a tight connection between the wire harness 2 and the terminal block 1 when the fixed housing 5 rotates or experiences external vibration and impact. Then, push the handle 14. When the handle 14 moves horizontally, it drives the sliding member 10 to move horizontally through the driving member 13. When the sliding member 10 moves horizontally, it drives the locking member 11 and the claw 12 to move horizontally. When the locking member 11 and the claw 12 contact the first locking block 8, they expand themselves. When moving horizontally again, the claw 12 can lock into the gap between the first locking block 8 and the second locking block 9. At this time, the claw 12 and the first locking block 8 can be fixedly connected, so that the sliding member 10 squeezes and fixes the wire harness 2. Then, rotate the fixed housing 5 to a specified angle to start the terminal block 1 to work.

[0026] When it is necessary to disconnect the terminal block 1 from the wire harness 2, the handle 14 needs to be pushed again. When the handle 14 is pushed and moves horizontally, it drives the sliding member 10 to move horizontally through the driving member 13. When the sliding member 10 moves horizontally, it drives the locking member 11 and the locking claw 12 to move horizontally. At this time, the locking claw 12 will continue to contact the second locking block 9. When the locking claw and the locking member 11 contact the second locking block 9, they expand. At this time, the handle 14 is pulled again. The handle 14 drives the locking claw 12 and the locking member 11 to move horizontally and reset through the driving member 13 and the sliding member 10. When the locking claw 12 moves horizontally and resets, it drives the second locking block 9 to move horizontally. When the bottom of the second locking block 9 is in contact with the bottom of the first locking block 8 due to the horizontal movement, the locking member 11 and the locking claw 12 expand due to contact with the second locking block 9, and thus move horizontally and reset through the first locking block 8 and pull out. At this time, the connection between the locking claw 12 and the first locking block 8 and the second locking block 9 is released, and the wire harness 2 can be pulled out.

[0027] Although embodiments of the present invention have been shown and described, 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-stability spring-loaded terminal block for rail transit, comprising a terminal block (1) and a wire harness (2), wherein multiple terminals of the terminal block (1) are each internally fixed with a wire harness (2), characterized in that, Both sides of the terminal block (1) are fixed with support members, and a fixed outer shell (5) is fixed on one side of the support member. The interior of the fixed outer shell (5) is hollow to form a cavity, and a fixed inner core (6) is fixed inside the cavity. The fixed inner core (6) has multiple through holes inside. A fixed rod (7) is fixed to one side of the through hole. A first locking block (8) is fixed to one side of the fixed rod (7). A second locking block (9) is slidably connected to the side of the fixed rod (7) near the first locking block (8). A sliding member (10) is slidably connected to the other side of the through hole of the fixed inner core (6). A fixing member is fixed to the side of the sliding member (10) near the through hole. An operating member is fixed to the front surface of the sliding member (10).

2. The high-stability spring-loaded terminal block for rail transit according to claim 1, characterized in that, The support includes a clamping shaft (3), which is fixedly connected to both sides of the terminal block, and a connector (4) is rotatably connected to the top of the clamping shaft (3).

3. The high-stability spring-loaded terminal block for rail transit according to claim 1, characterized in that, The fastener includes a snap-fit ​​member (11), which is fixedly connected to one side of the sliding member (10), and a claw (12) is fixed to one side of the snap-fit ​​member (11).

4. The high-stability spring-loaded terminal block for rail transit according to claim 1, characterized in that, The operating component includes a drive member (13), which is fixedly connected to a sliding member (10), and a handle (14) is fixedly attached to the front surface of the drive member (13).

5. A high-stability spring-loaded terminal block for rail transit according to claim 1, characterized in that, The first card block (8) and the second card block (9) are trapezoidal in shape, and the bottom bases of the two trapezoids are in contact with each other.

6. A high-stability spring-loaded terminal block for rail transit according to claim 3, characterized in that, The snap-fit ​​component (11) is matched with the snap-fit ​​claw (12) and the first snap-fit ​​block (8) is matched with the second snap-fit ​​block (9).

7. A high-stability spring-loaded terminal block for rail transit according to claim 1, characterized in that, The fixed outer shell (5) and the fixed inner core (6) are provided with a reserved wire harness (2) inside the cavity near the terminal block (1).

8. A high-stability spring-loaded terminal block for rail transit according to claim 1, characterized in that, The through holes inside the fixed inner core (6) match the wire harness (2).

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