Protective cover for wiring terminal
By designing a protective device on the terminal block and using components such as U-shaped blocks and protruding rods to fix the button position, the problem of loose wires caused by accidental force on the button is solved, and the stability of the line connection is improved.
Patent Information
- Application Number
- CN202422782195.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-15
AI Technical Summary
The button on the outside of the terminal housing may be accidentally pressed down, causing the internal wires to loosen and affect the circuit connection effect.
A protective device is designed, which includes a rectangular block, a rotating shaft, a U-shaped block, a convex rod, a groove rod and a spring. By pushing the U-shaped block to rotate and fix it on the terminal shell, the button is prevented from being accidentally loosened by force.
It effectively prevents the loosening of wires caused by accidental squeezing of the terminal button, ensuring the stability and reliability of the line connection.
Smart Images
Figure CN223414308U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective covers, in particular to a protective cover for connection terminals. Background Art
[0002] A terminal block is an accessory product used to achieve electrical connections. It usually consists of a metal sheet sealed in insulating plastic. There are holes at both ends for inserting wires, and the elastic metal sheet is tightened or loosened by pressing screws or buttons.
[0003] When using button-type terminal blocks for wiring, it is necessary to press the button on the outside of the terminal shell to deform the elastic metal sheet, then insert one end of the wire into the terminal, and release the button to clamp the other end of the wire inside the terminal shell for fixation. During daily use, the button on the outside of the terminal shell may be accidentally pressed down, causing the wire inside the shell to loosen, affecting the circuit connection effect inside the terminal block. Utility Model Content
[0004] The utility model aims to solve the problem that the button on the outside of the terminal shell may be accidentally pressed down during daily use, causing the wires inside the shell to loosen, thereby affecting the connection effect of the circuit inside the terminal. A protective cover for the terminal is proposed.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a protective cover for a terminal block, comprising two rectangular blocks, one side of the rectangular block is fixedly connected to a terminal shell, and the outer surface of the rectangular block is provided with a protective device, and the protective device includes a rotating shaft, and both ends of the rotating shaft are respectively rotatably connected to the side of the two rectangular blocks close to each other. The outer surface of the rotating shaft is fixedly connected to a U-shaped block, one end of the U-shaped block is fixedly connected to a convex rod, and the side of the terminal shell away from the rectangular block is fixedly connected to a slot rod, a rectangular slot is provided inside the slot rod, and the inner wall of the slot rod is slidably connected to an L-shaped rod at both ends, and a spring is provided on one side of the two L-shaped rods, and the two ends of the spring are respectively fixedly connected to one side of the L-shaped rod and one side of the inner wall of the slot rod, and one end of the two L-shaped rods is fixedly connected to a sliding rod, and one side of the sliding rod is fixedly connected to a stopper, and the outer surface of the stopper slides on the inner wall of the slot rod.
[0006] The effect achieved by the above components is that when using the wiring terminal for wiring, first push the U-shaped block to rotate it away from the top of the terminal shell through the rotating shaft to facilitate controlling the button on the top of the terminal shell. After the wiring terminal is used, the U-shaped block can be pushed on one side of the terminal shell to rotate it through the rotating shaft so that one end of the U-shaped block with the protruding rod is inserted into the rectangular groove in the groove rod. When one side of the protruding rod contacts the block on one side of the inner wall of the groove rod, it pushes the block and the sliding rod and the L-shaped rods at both ends of the sliding rod to move in the direction away from the groove rod and compress the spring on the outer surface of the L-shaped rod, and then the bottom end of the protruding rod contacts the bottom end of the inner wall of the rectangular groove, and the protruding rod is located below the block When the button on the top of the terminal shell needs to be operated, the sliding rod is pulled to move the block away from the top of the convex rod, and then the U-shaped block is pushed to rotate to disengage the convex rod from the inside of the rectangular groove.
[0007] Preferably, the bottom edge of the protruding rod is arc-shaped, and the top edge of the stopper is arc-shaped.
[0008] The effect achieved by the above components is: by setting the bottom edge of the protruding rod and the top edge of the stopper to be arc-shaped, it is easier to push the stopper away from the groove rod when the bottom end of the protruding rod contacts the top end of the stopper, and it is not easy to get stuck on one side of the protruding rod.
[0009] Preferably, one side of the L-shaped rod is fixedly connected to a round rod, and the outer surface of the round rod slides on the inner wall of the groove rod.
[0010] The effect achieved by the above components is that when the sliding rod and the L-shaped rod move, the round rod will slide on the inner wall of the groove rod, further limiting the angle between the L-shaped rod and the sliding rod and the groove rod, and avoiding as much as possible the deviation of the angle of the sliding rod and the L-shaped rod when they move.
[0011] Preferably, the diameter of the round rod is slightly smaller than the inner diameter of the spring, and the round rod is located inside the spring.
[0012] The effect achieved by the above components is that when the L-shaped rod moves to deform the spring, the round rod will move inside the spring. The round rod can reinforce the internal shape of the spring and avoid the spring from twisting to an inclined angle and affecting normal use as much as possible.
[0013] Preferably, a slot block is fixedly connected to one side of the sliding rod, and two grooves are provided on the outer surface of the slot block.
[0014] The effect achieved by the above components is that by pinching the two grooves on the outer surface of the slot block, the sliding rod can be pulled more conveniently to control the movement of the sliding rod and the stop block.
[0015] Preferably, an anti-slip sheet is provided on one side of the U-shaped block, and a plurality of anti-slip protrusions are provided on one side of the anti-slip sheet.
[0016] The effect achieved by the above components is: pressing the anti-slip protrusions on the outer surface of the anti-slip sheet with your hand can increase the friction when the hand contacts one side of the anti-slip sheet on the outer surface of the U-shaped block, making it more convenient to push the U-shaped block to rotate and less likely to slip.
[0017] Preferably, a reinforcement device is provided on one side of the U-shaped block, and the reinforcement device includes a first reinforcement rod and a second reinforcement rod, the two ends of the first reinforcement rod and the second reinforcement rod are respectively fixedly connected to the two diagonal points of the top end of the inner wall of the U-shaped block, the middle end of the outer surface of the first reinforcement rod is fixedly connected to the middle end of the outer surface of the second reinforcement rod, and the first reinforcement rod and the second reinforcement rod are distributed in an X shape at the top end of the inner wall of the U-shaped block.
[0018] The effect achieved by the above components is: by arranging the first reinforcement rod and the second reinforcement rod in an X-shape and distributed at the top of the inner wall of the U-shaped block, the top of the inner wall of the U-shaped block can be reinforced, thereby avoiding the top of the U-shaped block from sinking downward when subjected to force as much as possible, thereby improving the stability and strength of the U-shaped block in protecting the top of the terminal shell.
[0019] Preferably, the bottom end of the U-shaped block is fixedly connected to two oblique rods, and a certain angle is formed between the two oblique rods and the top end of the inner wall of the U-shaped block.
[0020] The effect achieved by the above components is that by arranging the oblique rods, the top of the inner wall of the U-shaped block and the lower part of the corner between the two ends can be further supported, thereby further improving the overall structural strength of the U-shaped block.
[0021] Compared with the prior art, the advantages and positive effects of the present invention are:
[0022] In the utility model, a protective device is provided, the position of the U-shaped block on the outside of the terminal shell is adjusted by pushing the U-shaped block to rotate, and one end of the U-shaped block is fixed inside the rectangular groove by a stop block, so as to fix the position of the U-shaped block above the terminal shell. The top of the terminal shell is protected by the U-shaped block, so as to avoid as much as possible that the button at the top is accidentally squeezed when the terminal is in use, causing the internal fixed circuit to loosen. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the terminal shell of the utility model;
[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the sliding rod of the utility model;
[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating shaft of the utility model.
[0027] Legend: 1. Rectangular block; 2. Protective device; 3. Reinforcement device; 4. Terminal shell; 21. Rotating shaft; 22. U-shaped block; 23. Protruding rod; 24. Slot rod; 25. Rectangular groove; 26. Sliding rod; 27. L-shaped rod; 28. Spring; 29. Stop block; 210. Round rod; 211. Slot block; 212. Anti-slip sheet; 31. First reinforcing rod; 32. Second reinforcing rod; 33. Diagonal rod. DETAILED DESCRIPTION
[0028] Example 1, as Figure 1-4As shown, a protective cover for a terminal block includes two rectangular blocks 1, one side of the rectangular block 1 is fixedly connected to a terminal housing 4, the outer surface of the rectangular block 1 is provided with a protective device 2, the protective device 2 includes a rotating shaft 21, the two ends of the rotating shaft 21 are respectively connected to the side of the two rectangular blocks 1 close to each other, the outer surface of the rotating shaft 21 is fixedly connected to a U-shaped block 22, one end of the U-shaped block 22 is fixedly connected to a protruding rod 23, the side of the terminal housing 4 away from the rectangular block 1 is fixedly connected to a slot rod 24, the interior of the slot rod 24 is provided with a rectangular groove 25, and the inner wall of the slot rod 24 is slidably connected to L-shaped rods 27 at both ends. , one side of the two L-shaped rods 27 is respectively provided with a spring 28, and the two ends of the spring 28 are respectively fixedly connected to one side of the L-shaped rod 27 and one side of the inner wall of the groove rod 24, one end of the two L-shaped rods 27 is fixedly connected to the sliding rod 26, and one side of the sliding rod 26 is fixedly connected to the stopper 29. The outer surface of the stopper 29 slides on the inner wall of the groove rod 24. When using the terminal block for wiring, first push the U-shaped block 22 through the rotating shaft 21 to rotate away from the top of the terminal shell 4 to facilitate the control of the button at the top of the terminal shell 4. After the terminal block is used, the U-shaped block 22 can be pushed through the rotating shaft on one side of the terminal shell 4 The U-shaped block 22 is rotated so that one end of the protruding rod 23 is inserted into the rectangular groove 25 in the groove rod 24. When one side of the protruding rod 23 contacts the stopper 29 on one side of the inner wall of the groove rod 24, it pushes the stopper 29 and the sliding rod 26 and the L-shaped rods 27 at both ends of the sliding rod 26 to move away from the groove rod 24 and compress the spring 28 on the outer surface of the L-shaped rod 27. Then the bottom end of the protruding rod 23 contacts the bottom end of the inner wall of the rectangular groove 25. The protruding rod 23 is located below the stopper 29. The spring 28 on the outer surface of the L-shaped rod 27 returns to its original shape and pushes the L-shaped rod 27 to drive the sliding rod 26 and the stopper 29 to their original shape. The position of the stopper 29 is moved so that the stopper 29 is located above the protruding rod 23 to fix the position of the protruding rod 23 and one end of the U-shaped block 22 inside the rectangular groove 25, and the position of the U-shaped block 22 above the terminal shell 4 is fixed. The top of the button on the top of the terminal shell 4 is protected by the U-shaped block 22 to avoid accidental squeezing of the button on the top of the terminal when the terminal is in use, which may cause the internal fixed circuit to loosen. When the button on the top of the terminal shell 4 needs to be operated, the sliding rod 26 is pulled to move the stopper 29 away from the top of the protruding rod 23, and then the U-shaped block 22 is pushed to rotate to disengage the protruding rod 23 from the inside of the rectangular groove 25.
[0029] Reference Figure 2-4As shown, in this embodiment: the bottom edge of the protruding rod 23 is arc-shaped, and the top edge of the stop block 29 is arc-shaped. By setting the bottom edge of the protruding rod 23 and the top edge of the stop block 29 to be arc-shaped, it is easier to push the stop block 29 to move in the direction away from the groove rod 24 when the bottom end of the protruding rod 23 contacts the top of the stop block 29, and it is not easy to get stuck on one side of the protruding rod 23. A round rod 210 is fixedly connected to one side of the L-shaped rod 27. The outer surface of the round rod 210 slides on the inner wall of the groove rod 24. When the sliding rod 26 and the L-shaped rod 27 move, the round rod 210 will slide on the inner wall of the groove rod 24, further limiting the angle between the L-shaped rod 27 and the sliding rod 26 and the groove rod 24, and avoiding the angle of the sliding rod 26 and the L-shaped rod 27 from being deflected when moving as much as possible.
[0030] Reference Figure 2-4 The cam 212 is provided with a plurality of anti-skid protrusions 216 on one side of the U-shaped block 22, and the cam 212 is provided with a plurality of anti-skid protrusions 217 on the other side of the U-shaped block 22.
[0031] Reference Figure 1 、 Figure 2 and Figure 4As shown, in this embodiment: a reinforcing device 3 is provided on one side of the U-shaped block 22, and the reinforcing device 3 includes a first reinforcing rod 31 and a second reinforcing rod 32. The two ends of the first reinforcing rod 31 and the second reinforcing rod 32 are fixedly connected to the two diagonal positions of the top end of the inner wall of the U-shaped block 22, respectively. The middle end of the outer surface of the first reinforcing rod 31 is fixedly connected to the middle end of the outer surface of the second reinforcing rod 32. The first reinforcing rod 31 and the second reinforcing rod 32 are distributed in an X shape at the top end of the inner wall of the U-shaped block 22. The top of the inner wall of the U-shaped block 22 can be reinforced to prevent the top of the U-shaped block 22 from sinking downward when subjected to force, thereby improving the stability and strength of the U-shaped block 22 when protecting the top of the terminal shell 4. The bottom end of the U-shaped block 22 is fixedly connected to two inclined rods 33, and a certain angle is formed between the two inclined rods 33 and the top of the inner wall of the U-shaped block 22. By setting the inclined rods 33, the top of the inner wall of the U-shaped block 22 and the bottom of the corner between the two ends can be further supported, thereby further improving the overall structural strength of the U-shaped block 22.
[0032] Working principle: When using the terminal block for wiring, first push the U-shaped block 22 to rotate away from the top of the terminal shell 4 through the rotating shaft 21 to facilitate controlling the button on the top of the terminal shell 4. After the terminal block is used, the U-shaped block 22 can be pushed on one side of the terminal shell 4 to rotate through the rotating shaft 21 so that one end of the U-shaped block 22 with the protruding rod 23 is inserted into the rectangular groove 25 in the groove rod 24. When one side of the protruding rod 23 contacts the stopper 29 on one side of the inner wall of the groove rod 24, it pushes the stopper 29 and the sliding rod 26 and the L-shaped rods 27 at both ends of the sliding rod 26 to move in the direction away from the groove rod 24 and compress the spring 28 on the outer surface of the L-shaped rod 27. Then the bottom end of the protruding rod 23 contacts the bottom end of the inner wall of the rectangular groove 25, and the protruding rod 23 is located at the stopper 29 At the bottom, the spring 28 on the outer surface of the L-shaped rod 27 will return to its original shape and push the L-shaped rod 27 to drive the sliding rod 26 and the stopper 29 to move to the original position, so that the stopper 29 is located above the protruding rod 23 to fix the position of the protruding rod 23 and one end of the U-shaped block 22 inside the rectangular groove 25, and fix the position of the U-shaped block 22 above the terminal shell 4. The top of the button of the terminal shell 4 is protected by the U-shaped block 22 to avoid accidental squeezing of the top button when the terminal is in use, which may cause the internal fixed circuit to loosen. When the button at the top of the terminal shell 4 needs to be operated, the sliding rod 26 is pulled to move the stopper 29 away from the top of the protruding rod 23, and then the U-shaped block 22 is pushed to rotate to disengage the protruding rod 23 from the inside of the rectangular groove 25.
[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A protective cover for a terminal block, comprising two rectangular blocks (1), characterized in that: A terminal housing (4) is fixedly connected to one side of the rectangular block (1); a protective device (2) is provided on the outer surface of the rectangular block (1); the protective device (2) comprises a rotating shaft (21); both ends of the rotating shaft (21) are rotatably connected to the sides of the two rectangular blocks (1) that are close to each other; a U-shaped block (22) is fixedly connected to the outer surface of the rotating shaft (21); one end of the U-shaped block (22) is fixedly connected to a protruding rod (23); a side of the terminal housing (4) away from the rectangular block (1) is fixedly connected to a slotted rod (24); the slotted rod (2 4) is provided with a rectangular groove (25), the inner wall of the groove rod (24) is slidably connected to the two ends of the L-shaped rod (27), one side of the two L-shaped rods (27) is respectively provided with a spring (28), the two ends of the spring (28) are respectively fixedly connected to one side of the L-shaped rod (27) and one side of the inner wall of the groove rod (24), one end of the two L-shaped rods (27) is fixedly connected to a sliding rod (26), one side of the sliding rod (26) is fixedly connected to a stopper (29), and the outer surface of the stopper (29) slides on the inner wall of the groove rod (24).
2. The protective cover for a terminal block according to claim 1, characterized in that: The bottom edge of the protruding rod (23) is arc-shaped, and the top edge of the stopper (29) is arc-shaped.
3. The protective cover for a terminal block according to claim 2, characterized in that: A round rod (210) is fixedly connected to one side of the L-shaped rod (27), and the outer surface of the round rod (210) slides on the inner wall of the groove rod (24).
4. The protective cover for a terminal block according to claim 3, characterized in that: The diameter of the round rod (210) is slightly smaller than the inner diameter of the spring (28), and the round rod (210) is located inside the spring (28).
5. The protective cover for a terminal block according to claim 4, characterized in that: A slot block (211) is fixedly connected to one side of the sliding rod (26), and two grooves are formed on the outer surface of the slot block (211).
6. The protective cover for a terminal block according to claim 5, characterized in that: An anti-slip sheet (212) is provided on one side of the U-shaped block (22), and a plurality of anti-slip protrusions are provided on one side of the anti-slip sheet (212).
7. The protective cover for a terminal block according to claim 6, characterized in that: A reinforcement device (3) is provided on one side of the U-shaped block (22), and the reinforcement device (3) includes a first reinforcement rod (31) and a second reinforcement rod (32), the two ends of the first reinforcement rod (31) and the second reinforcement rod (32) are respectively fixedly connected to the two diagonal points of the top end of the inner wall of the U-shaped block (22), the middle end of the outer surface of the first reinforcement rod (31) is fixedly connected to the middle end of the outer surface of the second reinforcement rod (32), and the first reinforcement rod (31) and the second reinforcement rod (32) are distributed in an X shape at the top end of the inner wall of the U-shaped block (22).
8. The protective cover for a terminal block according to claim 7, characterized in that: The bottom end of the U-shaped block (22) is fixedly connected to two oblique rods (33), and a certain angle is formed between the two oblique rods (33) and the top end of the inner wall of the U-shaped block (22).