Electrical wiring terminal

Abstract

The invention relates to the technical field of wiring terminals, in particular to an electrical wiring terminal which comprises a guide rail strip, a side groove, a first vertical groove, a second vertical groove and a terminal shell and further comprises a side positioning plate, connecting grooves, a positioning seat, a positioning column, a positioning assembly, a reinforcing assembly, a bottom groove and a vertical rod. And the side positioning plate is slidably installed in the connecting groove in one side, the positioning seats are installed on the inner surface of the guide rail strip at equal intervals, inserting grooves are formed in the positioning seats, and falling grooves communicating with the inserting grooves are formed in the side walls of the positioning seats. The invention solves the problem of high later maintenance cost caused by the need of loosening all leads, pushing aside the adjacent wiring terminals and then replacing the ablated wiring terminals when a single ablated wiring terminal of a split wiring terminal strip is replaced, and has the advantages that the ablated wiring terminals are conveniently and independently replaced, a stable structure is formed between the adjacent wiring terminals, the replacement of the wiring terminals is not influenced, and the service life of the wiring terminal strip is prolonged. And the later maintenance cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of connection terminals, in particular to an electrical connection terminal. Background Art

[0002] Electrical terminal blocks are components used for electrical connections. They are mainly used to safely connect wires, cables or other electrical components together to achieve signal transmission and power transfer in electrical systems. They are widely used in the fields of electricity, electronics, automation and communications. Terminal blocks can be divided into screw terminals, crimp terminals, welding terminals and terminal blocks according to their types. Terminal blocks are composed of multiple terminals and are often used in distribution boxes and electrical control cabinets to facilitate the organization and management of multiple wire connections and to achieve centralized management of multiple lines.

[0003] At the construction site, the open-air distribution box provides temporary power supply for the construction site, connects the construction equipment and lighting facilities, and ensures the progress of the construction. Due to the large number of construction equipment and lighting facilities, terminal blocks are used in the open-air distribution box to connect multiple wires. The open-air distribution box cannot be completely sealed in design. When it is used in the rainy season in summer, water vapor enters the open-air distribution box, resulting in an increased possibility of ablation between the terminal and the wire. And when multiple electrical equipment is turned on at the same time, the current passing through the terminal is close to or exceeds the rated current, and the possibility of ablation is further increased. The terminal and the wire are melted and combined due to the high temperature caused by the ablation, forming a state similar to "connected as one".

[0004] When ablation occurs between the terminal and the wire, the ablated terminal needs to be replaced in time to avoid more serious faults or circuit short circuits caused by ablation. The integral terminal block needs to be replaced as a whole after a single terminal is ablated, which is costly. Therefore, split terminal blocks are mostly used in outdoor distribution boxes. In order to ensure the stability of the terminal blocks after splicing, the terminals at both ends need to be fixed with limiters. When replacing a single terminal, the limiters on both sides need to be removed, and the terminals on both sides of the ablated terminal need to be moved to both sides to make a certain space, and then the ablated terminal needs to be removed. However, the adjacent terminals are affected by the connected wires, and the wires will be twisted when they are moved, causing the contact surface between other terminals and the wires to be not tight enough. In the later stage, other terminals are prone to ablation due to poor contact. If the ablated terminals are replaced after the connected wires are loosened, the replacement time will be extended and the maintenance cost will be significantly increased.

[0005] To this end, an electrical connection terminal is proposed. Summary of the invention

[0006] The object of the present invention is to provide an electrical terminal block, which can quickly limit and fix the terminal housing and the guide rail when the terminal block is installed, and form a limit reinforcement structure between adjacent terminals after installation, so that the adjacent terminals do not interfere with each other when replaced. This solves the problem that when replacing a single ablated terminal in a split terminal row, all wires need to be loosened and adjacent terminals need to be pulled apart, and then the ablated terminal needs to be replaced, resulting in high subsequent maintenance costs. The present invention has the advantages of convenient independent replacement after ablation, forming a stable structure between adjacent terminals without affecting the replacement of the terminals, and low subsequent maintenance costs.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An electrical terminal comprises a guide rail, a side groove, a first vertical groove, a second vertical groove, and a terminal housing, wherein the side groove is arranged on the side wall of the guide rail, the first vertical groove and the second vertical groove are constructed on the surface of the guide rail, and the first vertical groove is connected to the side groove, the terminal housing is placed on the surface of the guide rail, and further comprises a side positioning plate, a connecting groove, a positioning seat, a positioning column, a positioning assembly, a reinforcement assembly, a bottom groove and a vertical rod, the connecting groove is symmetrically arranged on the side wall of the terminal housing, the side positioning plate is slidably installed in the connecting groove on one side, the positioning seat is evenly spaced and installed on the inner surface of the guide rail, and the inside of the positioning seat A slot is provided, and a drop groove connected to the slot is provided on the side wall of the positioning seat, the positioning column is installed at the bottom of the terminal shell, the positioning component is installed in the drop groove, and the positioning component passes through the side groove, the reinforcement component is installed on the positioning component, the bottom groove is provided on the bottom surface of the guide bar extension portion, and the vertical rod is installed at the bottom of the terminal shell, and when the terminal shell and the guide bar surface are in contact, the positioning column is inserted into the slot, and the positioning component and the positioning column are in rolling contact and slowly move up to be plugged with the vertical rod, and the reinforcement component moves up with the positioning component and pushes the side positioning plate into the connecting groove of the adjacent terminal shell.

[0009] In an open-air distribution box, there are a large number of connected wires, and a single rail bar usually has dozens of terminal housings. If the terminal in the middle is burned, when replacing it, first remove the limiter, then loosen the wire on the burned terminal, and then move the adjacent terminals on the corresponding sides to both sides. If the terminals on both sides cannot be pushed due to the resistance caused by the bending of the wires, it is necessary to loosen the wires connected to the terminals on both sides, and then move the terminals on both sides of the burned terminals to make room for replacement. After replacement, the loosened wires need to be locked. The replacement operation takes a long time and has high maintenance costs. In order to avoid the terminal being burned due to the current passing through the terminal exceeding the rated current, a terminal with a larger rated current can be selected to connect the wires. However, due to the limitation of the internal space size of the distribution box, the size of the terminal with a larger rated current is also larger. Therefore, the number of large-rated current terminals that can be installed in the same space is limited. After installing a certain number of large-rated current terminals, the remaining space is small, which causes inconvenience in the later wiring operations. Therefore, it is not the best solution to avoid the burning of the terminal.

[0010] In addition, in the prior art, the wiring terminals are mostly installed on the guide rails in a movable plug-in manner. Although this method is relatively simple when installing the wiring terminals, electronic equipment such as relays and contactors are mostly installed in the distribution cabinet. When the relay or contactor is in the switching state, the internal electromagnet will quickly attract and release, generating a small amplitude vibration, which will cause the wiring terminals and the guide rails to slide relative to each other over time. If the connected wires are soft wires and the wiring terminals cannot be restricted, the wiring terminals are easy to move to the two ends of the guide rails, or even detach from the two ends of the guide rails. For this reason, two limiters need to be installed on the guide rails to limit the wiring terminals from both sides. However, this will cause the limiters to be additionally removed when replacing the burned wiring terminals, which brings inconvenience to the replacement of the burned wiring terminals. To this end, this solution installs a positioning column and a vertical rod at the bottom of the terminal housing. When the terminal housing is attached to the surface of the guide rail, the positioning column is inserted into the positioning seat, and the positioning assembly and the reinforcement assembly are driven upward through the rolling contact with the positioning assembly when the positioning column moves downward, thereby plugging and locking the terminal housing and the vertical rod. At the same time, the same side positioning plate is inserted between adjacent terminal housings, which effectively improves the stability of the terminal housing after installation.

[0011] Preferably, the positioning assembly includes a lifting block, a tooth groove, a receiving groove, a rubber wheel, a gear, an extension bar and a horizontal moving block. The positioning seat is internally constructed with inner limit grooves located on both sides of the falling groove. The lifting block is arranged in the falling groove. The receiving groove is opened in the middle position of the side wall of the lifting block. The tooth groove is opened on the side wall of the lifting block, and the tooth groove is symmetrically arranged about the receiving groove. The rubber wheel is rotatably installed in the falling groove. The gear is symmetrically installed on both sides of the rubber wheel. The rubber wheel is fitted with the receiving groove, and the gear is meshed with the tooth groove. The extension bar is installed on the side of the lifting block away from the slot, and the extension bar passes through the side groove. The horizontal moving block is arranged below the bottom groove, and both ends of the horizontal moving block and the end of the extension bar close to the horizontal moving block are constructed with 45° inclined surfaces.

[0012] As mentioned above, when the terminal is installed on the guide bar, the bottom surface of the terminal shell will fall, and the positioning column at the bottom will be inserted into the slot of the positioning seat. The rubber wheel will roll after contacting the side wall of the positioning column, and then drive the lifting block to move up along the lifting slot through the cooperation of the gear and the tooth groove. After moving up to a certain height, the horizontal moving block will move horizontally and be plugged and fixed with the vertical rod under the contact of the inclined surface, thereby quickly locking and fixing the terminal shell of the terminal on the surface of the guide bar. It is more convenient to install the terminal on the guide bar for the first time, and it is also relatively simple to replace the burned terminal and install a new terminal shell of the terminal, which is conducive to shortening the maintenance time of subsequent burning and replacement of the terminal, thereby reducing the later maintenance cost.

[0013] Preferably, the reinforcement assembly includes a through rod and a wedge block, the through rod is installed on the surface of the extension strip, the wedge block is installed on the top of the through rod, the through rod passes through the first side groove, and when the through rod and the wedge block move upward, they push the side positioning plate to move toward the outside of the connecting groove.

[0014] As mentioned above, when the extension bar moves up and down with the lifting block, the through rod and the wedge block move up and down together with the extension bar. When the wedge block moves up, the wedge block gradually contacts the end of the side positioning plate, so that the side positioning plate moves toward the outside of the connecting groove until the side positioning plate is inserted into the connecting groove of the adjacent terminal housing. This is beneficial to improving the stability between adjacent terminal housings and avoiding small vibrations caused by the internal relays or contactors of the open-air distribution cabinet when they are in the switching state, causing the terminal housing to detach from the surface of the guide bar, further improving the stability of the terminal in the working state. In addition, through multiple fixations of the terminal housing, it is possible to effectively avoid shaking of the terminal housing during use, causing the contact surface between the contact piece of the terminal and the wire to loosen, thereby effectively reducing the possibility of burning of the terminal during use.

[0015] Preferably, the terminal housing is provided with horizontal slide grooves on both sides of the connecting groove, side blocks located in the horizontal slide grooves are installed on both sides of the side positioning plate, and a first spring located in the horizontal slide groove is connected between the side block and the terminal housing.

[0016] As mentioned above, when the ablated terminal is removed, when the toggle bar is pressed down and the terminal shell is lifted up synchronously, the first spring can push the side positioning plate back into the connecting groove after losing the squeezing effect of the wedge block, thereby separating the terminal shell of the ablated terminal from the terminal shell behind, and at the same time, pull down the extension bar of the front terminal shell to make the side positioning plate of the front terminal shell withdraw from the terminal shell connecting groove of the ablated terminal. At this time, the terminal shell of the ablated terminal can be easily lifted up without causing displacement of the terminal shell adjacent to the ablated terminal.

[0017] Preferably, a top block is installed on the top of the horizontal moving block, a cross bar penetrating the top block is installed in the bottom groove, a second spring is sleeved on the outer periphery of the cross bar, and the second spring is arranged on the side of the top block close to the vertical rod.

[0018] As mentioned above, when the burnt terminal needs to be removed, the toggle bar is pressed down and the terminal housing of the burnt terminal is lifted up. After the external force is lost, the second spring can push the horizontal moving block to the left so that the horizontal moving block can be quickly separated from the vertical pole, thereby quickly removing the terminal housing from the guide bar.

[0019] Preferably, an inner groove is formed in the side wall of the vertical pole, and a third spring is arranged in the inner groove, the top of the third spring abuts against a limit block extending above the inner groove, and a toggle bar extending to the outside of the vertical pole is installed on the side wall of the limit block.

[0020] As mentioned above, when replacing the burned terminal block later, the toggle block is pressed down by the finger, and the toggle block drives the limit plug block to move downward and squeeze the third spring, so that the limit plug block and the horizontal moving block lose the limiting effect, and then the positioning component and the reinforcement component can be moved accordingly by lifting the terminal housing.

[0021] Preferably, a wedge-shaped surface is constructed on the top of the limiting plug block, and the wedge-shaped surface is arranged close to one side of the horizontal moving block.

[0022] As described above, under the action of the wedge-shaped surface on the top of the limit plug, when the horizontal moving block and the limit plug are docked, the limit plug first moves downward and then resets and moves upward, thereby effectively locking the horizontal moving block.

[0023] Preferably, the diameter of the rubber wheel is larger than the outer diameter of the gear, and a friction surface is provided on the outer circumference of the rubber wheel, and a rough surface is provided on the side wall of the positioning column, and the width of the rough surface is equal to that of the rubber wheel.

[0024] As described above, under the design of the friction surface and the rough surface, when the positioning column contacts the rubber wheel during the insertion of the positioning column into the positioning seat, the downward movement of the positioning column can drive the rubber wheel to rotate stably, thereby controlling the upward movement of the lifting block with the help of the downward movement of the positioning column.

[0025] Preferably, limit sliders are installed on both sides of the lifting block, and the limit sliders extend into the inner limit groove.

[0026] As described above, with the cooperation of the limit slider and the limit groove, the lifting block can be effectively prevented from being deviated to the left and right during the up and down movement, thereby ensuring the fitting effect of the gear and the tooth groove.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention provides a positioning seat, a positioning column, a positioning assembly and a vertical rod. When the terminal is installed on the guide rail for the first time, the terminal can be installed and fixed when the terminal housing is attached to the surface of the guide rail. The operation is simple and no additional operation is required. When the ablated terminal is replaced later, it is convenient to separate the adjacent terminal housings so that the separate terminal housings can be removed, which is beneficial to shorten the maintenance time of the subsequent ablation replacement of the terminal, thereby reducing the later maintenance cost.

[0029] 2. The present invention provides a reinforcement component, a positioning component and a side positioning plate. When the terminal housings of the terminal blocks are installed in sequence, the side positioning plate of the terminal housing installed later is moved outward along the connecting groove under the action of the reinforcement component that moves upward along with the positioning component until it is inserted into the connecting groove of the adjacent installed terminal housing, so that a connecting structure can be formed between the installed terminal housings, thereby improving the stability of the terminal blocks during use, avoiding the vibration generated when the electronic components inside the distribution box are working, resulting in a loose contact surface between the terminal and the wire and causing ablation, thereby effectively reducing the possibility of ablation of the terminal blocks.

[0030] 3. The present invention provides a vertical pole, a positioning assembly and a reinforcement assembly. When the terminal is burned, the terminal can be disassembled by pressing down the toggle bar and lifting up the terminal shell simultaneously, so that the terminal shell of the burned terminal can be separated from the terminal shell behind. At the same time, the extension bar of the front terminal shell is pulled down, and the side positioning plate of the front terminal shell is withdrawn from the terminal shell connecting groove of the burned terminal. Then, the terminal shell of the burned terminal can be separated from the terminal shell in front without causing displacement of the terminal shell adjacent to the burned terminal, effectively preventing displacement of the adjacent terminal shells, and avoiding the possibility of burning of other terminals due to deflection of the wire and the contact piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 is a cross-sectional view of the present invention;

[0033] Figure 3 It is a schematic structural diagram of the terminal housing of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the positioning assembly when the positioning column of the present invention is not inserted into the positioning seat;

[0035] Figure 5 It is a schematic structural diagram of the positioning seat and the positioning post when the positioning post of the present invention is inserted into the positioning seat;

[0036] Figure 6 It is a structural schematic diagram of the positioning assembly when the positioning column of the present invention is inserted into the positioning seat;

[0037] Figure 7 It is a structural schematic diagram of the vertical pole of the present invention;

[0038] Figure 8 It is a schematic structural diagram of the lifting block and the rubber wheel of the present invention.

[0039] In the figure: 1, guide rail; 2, side groove; 3, first vertical groove; 4, second vertical groove; 5, terminal housing; 6, side positioning plate; 61, side block; 62, first spring; 63, horizontal slide groove; 7, connecting groove; 8, positioning seat; 81, slot; 82, drop groove; 83, inner limit groove; 9, positioning column; 10, positioning assembly; 101, lifting block; 1011, limit slider; 102, tooth groove; 103, receiving groove; 104, rubber wheel; 105, gear; 106, extension bar; 107, horizontal moving block; 1071, cross bar; 1072, top block; 1073, second spring; 11, reinforcement assembly; 111, through rod; 112, wedge block; 12, bottom groove; 13, vertical rod; 131, inner groove; 132, third spring; 133, toggle bar; 134, limit plug. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 8 The present invention provides an electrical terminal block, and the technical solution is as follows:

[0042] Reference Figures 1 to 3, an electrical terminal, including a guide bar 1, a side groove 2, a first vertical groove 3, a second vertical groove 4, and a terminal housing 5, wherein the side groove 2 is arranged on the side wall of the guide bar 1, the first vertical groove 3 and the second vertical groove 4 are constructed on the surface of the guide bar 1, and the first vertical groove 3 is connected to the side groove 2, and the second vertical groove 4 is closer to the surface edge of the guide bar 1 than the first vertical groove 3, the terminal housing 5 is placed on the surface of the guide bar 1, and also includes a side positioning plate 6, a connecting groove 7, a positioning seat 8, a positioning column 9, a positioning component 10, a reinforcement component 11, a bottom groove 12 and a vertical rod 13, the connecting groove 7 is symmetrically arranged on the side wall of the terminal housing 5, and the connecting groove 7 is arranged on both sides of the terminal housing 5, that is, there are four connecting grooves 7 on a single terminal housing 5, refer to Figure 1 , the connection groove 7 ( Figure 1 The depth of the side positioning plate 6 is smaller than the depth of the connecting groove 7 on the rear side of the terminal housing 5. The side positioning plate 6 is slidably installed in the connecting groove 7 on one side (the rear side of the terminal housing 5). When the side positioning plate 6 slides, it enters the front connecting groove 7 of the adjacent rear terminal housing 5 along the rear connecting groove 7. The end of the side positioning plate 6 is a cube structure. When the cube structure is inserted, the uninserted part of the side positioning plate 6 is located between the adjacent terminal housings 5, that is, there is a certain gap between the adjacent terminal housings 5 ​​to facilitate the subsequent removal of the ablated terminal housings 5; the positioning seats 8 are installed at equal intervals on the inner surface of the guide rail 1, and the positioning seats 8 are provided with slots 81 inside. The top of the slots 81 is flush with the top of the positioning seats 8. The side walls of the positioning seats 8 are provided with drop grooves 82 connected to the slots 81. The width of the drop grooves 82 is smaller than the width of the positioning seats 8. The positioning column 9 is installed at the bottom of the terminal housing 5. When the terminal housing 5 is attached to the surface of the guide rail 1, When the terminal housing 5 moves downward, the positioning column 9 can be inserted into the slot 81, the positioning component 10 is installed in the falling slot 82, and the positioning component 10 passes through the side slot 2, the positioning component 10 extends to the outside of the guide bar 1, the reinforcement component 11 is installed on the positioning component 10, the reinforcement component 11 and the corresponding first vertical slot 3 are in the same vertical direction, the bottom slot 12 is opened on the bottom surface of the extension part of the guide bar 1, the bottom slot 12 is located on the inner side of the second vertical slot 4, the vertical rod 13 is installed at the bottom of the terminal housing 5, and when the terminal housing 5 is in contact with the surface of the guide bar 1, the positioning column 9 is inserted into the slot 81, and the vertical rod 13 passes through the guide bar 1, and the bottom of the vertical rod 13 extends to the bottom of the guide bar 1, and the positioning component 10 rolls in contact with the positioning column 9 and slowly moves up along the falling slot 82 and the side slot 2 until it is plugged with the vertical rod 13, the reinforcement component 11 moves up with the positioning component 10 and pushes the side positioning plate 6 into the connecting slot 7 of the adjacent terminal housing 5.

[0043] As an embodiment of the present application, refer to Figures 4 to 6The positioning assembly 10 includes a lifting block 101, a tooth groove 102, a receiving groove 103, a rubber wheel 104, a gear 105, an extension bar 106 and a horizontal moving block 107. The positioning seat 8 is internally structured with inner limit grooves 83 located on both sides of the drop groove 82. The lifting block 101 is arranged in the drop groove 82. Under the action of gravity, the bottom of the lifting block 101 fits with the positioning seat 8. The receiving groove 103 is arranged in the middle position of the side wall of the lifting block 101. The tooth groove 102 is arranged on the side wall of the lifting block 101, and the tooth groove 102 is symmetrically arranged about the receiving groove 103. , the rubber wheel 104 is rotatably installed in the drop groove 82, the gear 105 is symmetrically installed on both sides of the rubber wheel 104, the rubber wheel 104 is fitted with the receiving groove 103, the gear 105 is meshed with the tooth groove 102, the extension bar 106 is installed on the side of the lifting block 101 away from the slot 81, and the extension bar 106 passes through the side groove 2, the horizontal moving block 107 is arranged below the bottom groove 12, and both ends of the horizontal moving block 107 and the end of the extension bar 106 close to the horizontal moving block 107 are constructed with a 45° inclined surface; when the positioning column 9 is inserted into the positioning seat 8, refer to Figure 4 and Figure 5 In the process of inserting the positioning column 9 into the slot 81, when the side wall of the positioning column 9 contacts the outer periphery of the rubber wheel 104, as the positioning column 9 moves downward, the rubber wheel 104 will drive the gear 105 to rotate counterclockwise, and the gear 105 rotates counterclockwise through the tooth groove 102 to drive the lifting block 101 to move upward, so that the reinforcement component 11 and the extension bar 106 move up with the lifting block 101 at the same time. When the extension bar 106 moves up to a certain height, its end contacts the end of the horizontal moving block 107. In the subsequent upward movement process, under the action of the inclined surface, the horizontal moving block 107 moves toward the side of the vertical pole 13 until the horizontal moving block 107 is locked with the vertical pole 13.

[0044] As an embodiment of the present application, refer to Figure 4 The reinforcement component 11 includes a through rod 111 and a wedge block 112. The through rod 111 is installed on the surface of the extension bar 106, and the wedge block 112 is installed on the top of the through rod 111. The through rod 111 passes through the first side groove 2. When the through rod 111 and the wedge block 112 move upward, they push the side positioning plate 6 to move toward the outside of the connecting groove 7. When the through rod 111 moves upward together with the extension bar 106, it moves along the first vertical groove 3. When the wedge block 112 contacts the side wall of the side positioning plate 6 and the through rod 111 continues to move upward, the wedge block 112 will slowly push the side positioning plate 6 outward, so that the end of the side positioning plate 6 is exposed from the connecting groove 7 and enters the connecting groove 7 on the front side of the adjacent terminal housing 5 on the rear side.

[0045] As an embodiment of the present application, refer to Figure 2, horizontal slide grooves 63 are provided inside the terminal housing 5 on both sides of the connecting groove 7, and side blocks 61 located in the horizontal slide grooves 63 are installed on both sides of the side positioning plate 6, and a first spring 62 located in the horizontal slide groove 63 is connected between the side block 61 and the terminal housing 5. When the side positioning plate 6 moves outward along the connecting groove 7, the side positioning plate 6 drives the side block 61 to move horizontally together, thereby squeezing the first spring 62. When the terminal housing 5 of the ablation terminal needs to be removed later, the positioning assembly 10 of the front terminal housing 5 is restricted from contact. When the terminal housing 5 of the ablation terminal is lifted, the first spring 62 can push the side positioning plate 6 to move quickly into the connecting groove 7, so that the upward movement of the terminal housing 5 of the ablation terminal will not be interfered by the side positioning plate 6 of the adjacent terminal housing 5.

[0046] As an embodiment of the present application, refer to Figure 6 A top block 1072 is installed on the top of the horizontal moving block 107, and a cross bar 1071 penetrating the top block 1072 is installed in the bottom groove 12. A second spring 1073 is sleeved on the outer periphery of the cross bar 1071, and the second spring 1073 is arranged on the side of the top block 1072 close to the vertical pole 13. When the horizontal moving block 107 moves toward the vertical pole 13, the horizontal moving block 107 drives the top block 1072 to move together, thereby squeezing the second spring 1073. When the horizontal moving block 107 is subsequently contacted with the restriction of the vertical pole 13 on the horizontal moving block 107, the second spring 1073 can push the horizontal moving block 107 to quickly reset and withdraw from the vertical pole 13.

[0047] As an embodiment of the present application, refer to Figure 7 The side wall of the vertical rod 13 is provided with an inner groove 131, and a third spring 132 is arranged in the inner groove 131. The top of the third spring 132 abuts against a limit plug 134 extending to the top of the inner groove 131. The top of the limit plug 134 is constructed with a wedge-shaped surface, and the wedge-shaped surface is arranged close to one side of the horizontal moving block 107. The side wall of the limit plug 134 is installed with a toggle bar 133 extending to the outside of the vertical rod 13. When the horizontal moving block 107 is slowly inserted into the vertical rod 13, the horizontal moving block 107 will first squeeze the limit plug 134 downward after contacting the top of the limit plug 134. The limit plug 134 moves downward and squeezes the third spring 132. When the horizontal moving block 107 reaches the maximum horizontal moving position, that is, the top block 1072 completely compresses the second spring 1073, the limit plug 134 moves upward and resets under the action of the third spring 132, thereby locking the end of the horizontal moving block 107 through the limit plug 134. When the terminal housing 5 of the ablated terminal needs to be removed later, the limit plug 134 is driven downward by pressing the toggle bar 133. At this time, the horizontal moving block 107 loses the restriction of the limit plug 134, and the terminal housing 5 can be smoothly lifted up.

[0048] As an embodiment of the present application, refer to Figure 8The diameter of the rubber wheel 104 is larger than the outer diameter of the gear 105, and a friction surface is provided on the outer periphery of the rubber wheel 104. A rough surface is provided on the side wall of the positioning column 9, and the width of the rough surface is equal to the width of the rubber wheel 104. When the rubber wheel 104 contacts the positioning column 9, the friction surface fits the rough surface, effectively avoiding slipping between the rubber wheel 104 and the positioning column 9.

[0049] As an embodiment of the present application, refer to Figure 8 Limiting sliders 1011 are installed on both sides of the lifting block 101, and the limiting sliders 1011 extend into the inner limiting groove 83. Under the action of the limiting sliders 1011 and the inner limiting groove 83, when the lifting block 101 moves up and down, no left and right deviation will occur, ensuring that the lifting block 101 always moves in the vertical direction.

[0050] Working principle: when the terminal housing 5 of the wiring terminal is fitted on the surface of the guide rail 1, the side wall of the positioning column 9 rolls and fits with the positioning component 10 during the insertion of the positioning column 9 into the positioning seat 8, so that the positioning component 10 and the reinforcement component 11 move upward, and the end of the positioning component 10 is plugged into the part of the vertical rod 13 extending to the bottom of the guide rail 1, and the reinforcement component 11 squeezes the side positioning plate 6 to move outward from the connecting groove 7, so that the side positioning plate 6 is plugged between adjacent terminal housings 5. When the terminal housing 5 of the ablated wiring terminal is subsequently disassembled, the toggle bar 133 of the ablated wiring terminal and the extension bar 106 at the bottom of the front terminal housing 5 are pressed down to unlock and separate the adjacent terminal housings 5, thereby quickly replacing the ablated wiring terminal;

[0051] Specifically, when installing the terminal housing 5, during the process of inserting the positioning column 9 into the slot 81, after the positioning column 9 drops to a certain height, its side wall contacts the outer periphery of the rubber wheel 104, so that the rubber wheel 104 drives the gear 105 to rotate counterclockwise together, and the gear 105 rotates counterclockwise through the tooth groove 102 to drive the lifting block 101 to move upward, so that the reinforcement component 11 and the extension bar 106 move upward with the lifting block 101, and when the extension bar 106 moves up to a certain height, its end contacts the end of the horizontal moving block 107, and when it continues to move upward, Under the action of the inclined plane, the horizontal moving block 107 moves toward the side of the vertical rod 13 until the horizontal moving block 107 presses down the limit plug 134. When the limit plug 134 is reset, the horizontal moving block 107 is locked. At the same time, the wedge block 112 moves upward together with the extension bar 106. After the wedge block 112 contacts the side wall of the side positioning plate 6, the through rod 111 continues to move upward. The wedge block 112 pushes the side positioning plate 6 outward. The end of the side positioning plate 6 is exposed from the connecting groove 7 and inserted into the connecting groove 7 on the front side of the adjacent terminal housing 5 at the rear side.

[0052] When the terminal housing 5 of the burnt terminal needs to be removed, the push bar 133 is pressed down to drive the limit plug 134 to move downward. At this time, the horizontal moving block 107 loses the restriction of the limit plug 134. After the positioning component 10 of the front terminal housing 5 is restricted in contact, when the terminal housing 5 of the burnt terminal is lifted up, the first spring 62 can push the side positioning plate 6 to move quickly into the connecting groove 7. Under the action of the second spring 1073, the horizontal moving block 107 can be pushed to reset and separate from the vertical pole 13. At this time, the terminal housing 5 of the burnt terminal can be lifted up to be removed.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrical terminal, comprising a guide rail (1), a side groove (2), a first vertical groove (3), a second vertical groove (4), and a terminal housing (5), characterized in that: The terminal housing (5) further comprises a side positioning plate (6), a connecting groove (7), a positioning seat (8), a positioning column (9), a positioning assembly (10), a reinforcement assembly (11), a bottom groove (12) and a vertical rod (13), wherein the connecting groove (7) is symmetrically arranged on the side wall of the terminal housing (5), the side positioning plate (6) is slidably installed in the connecting groove (7) on one side, the positioning seat (8) is evenly installed on the inner surface of the guide rail (1), a slot (81) is arranged inside the positioning seat (8), a drop groove (82) connected to the slot (81) is arranged on the side wall of the positioning seat (8), the positioning column (9) is installed at the bottom of the terminal housing (5), and the positioning assembly (10) is installed at the bottom of the terminal housing (5). ) is installed in the drop groove (82), and the positioning component (10) passes through the side groove (2), the reinforcement component (11) is installed on the positioning component (10), the bottom groove (12) is opened on the bottom surface of the extension part of the guide rail (1), and the vertical rod (13) is installed at the bottom of the terminal housing (5). When the terminal housing (5) and the guide rail (1) surface are in contact, the positioning column (9) is inserted into the slot (81), and the positioning component (10) and the positioning column (9) are in rolling contact and slowly move up to be plugged with the vertical rod (13), and the reinforcement component (11) moves up with the positioning component (10) and pushes the side positioning plate (6) into the connecting groove (7) of the adjacent terminal housing (5).

2. An electrical terminal according to claim 1, characterized in that: The positioning assembly (10) comprises a lifting block (101), a tooth groove (102), a receiving groove (103), a rubber wheel (104), a gear (105), an extension bar (106) and a horizontal moving block (107); the positioning seat (8) is internally structured with inner limit grooves (83) located on both sides of the falling groove (82); the lifting block (101) is arranged in the falling groove (82); the receiving groove (103) is arranged in the middle position of the side wall of the lifting block (101); the tooth groove (102) is arranged on the side wall of the lifting block (101); and the tooth groove (102) is symmetrically arranged with respect to the receiving groove (103); the rubber wheel (104) is provided with a tooth groove (102) and a tooth groove (102) arranged on the side wall of the lifting block (101); and the rubber wheel (104) is provided with a tooth groove (102) and a tooth groove (106) and a horizontal moving block (107); The wheel (104) is rotatably mounted in the drop groove (82), the gear (105) is symmetrically mounted on both sides of the rubber wheel (104), the rubber wheel (104) is fitted with the receiving groove (103), the gear (105) is meshed with the tooth groove (102), the extension bar (106) is mounted on the side of the lifting block (101) away from the slot (81), and the extension bar (106) passes through the side groove (2), the horizontal moving block (107) is arranged below the bottom groove (12), and both ends of the horizontal moving block (107) and the end of the extension bar (106) close to the horizontal moving block (107) are constructed with 45° inclined surfaces.

3. An electrical terminal according to claim 2, characterized in that: The reinforcement component (11) comprises a penetration rod (111) and a wedge block (112); the penetration rod (111) is mounted on the surface of the extension strip (106); the wedge block (112) is mounted on the top of the penetration rod (111); the penetration rod (111) passes through the first side groove (2); when the penetration rod (111) and the wedge block (112) move upward, they push the side positioning plate (6) to move toward the outside of the connecting groove (7).

4. An electrical terminal according to claim 3, characterized in that: The terminal housing (5) is provided with horizontal slide grooves (63) located on both sides of the connecting groove (7), and side blocks (61) located in the horizontal slide groove (63) are installed on both sides of the side positioning plate (6), and a first spring (62) located in the horizontal slide groove (63) is connected between the side block (61) and the terminal housing (5).

5. An electrical terminal according to claim 4, characterized in that: A top block (1072) is installed on the top of the horizontal moving block (107), a cross bar (1071) penetrating the top block (1072) is installed in the bottom groove (12), a second spring (1073) is sleeved on the outer periphery of the cross bar (1071), and the second spring (1073) is arranged on a side of the top block (1072) close to the vertical rod (13).

6. An electrical terminal according to claim 5, characterized in that: The side wall of the vertical rod (13) is provided with an inner groove (131), and a third spring (132) is arranged in the inner groove (131); the top of the third spring (132) is in contact with a limit plug (134) extending to the top of the inner groove (131); and the side wall of the limit plug (134) is provided with a toggle bar (133) extending to the outside of the vertical rod (13).

7. An electrical terminal according to claim 6, characterized in that: The top of the limiting plug block (134) is structured with a wedge-shaped surface, and the wedge-shaped surface is arranged close to one side of the horizontal moving block (107).

8. An electrical terminal according to claim 2, characterized in that: The diameter of the rubber wheel (104) is greater than the outer diameter of the gear (105), and a friction surface is provided on the outer circumference of the rubber wheel (104).

9. An electrical terminal according to claim 8, characterized in that: The side wall of the positioning column (9) is provided with a rough surface, and the width of the rough surface is equal to the width of the rubber wheel (104).

10. An electrical terminal according to claim 9, characterized in that: Limiting slide blocks (1011) are installed on both sides of the lifting block (101), and the limiting slide blocks (1011) extend into the inner limiting groove (83).

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