Wiring terminal

Abstract

The utility model relates to a wiring terminal, which comprises a shell, a cover body, a hardware terminal and an operation button, a cavity capable of accommodating and clamping the hardware terminal is arranged in the shell, the top surface of the shell is provided with a lead plugging hole communicated with the cavity, and the side surface of the shell is clamped and connected with the operation button; the hardware terminal comprises a hardware busbar and an elastic piece, the elastic piece comprises an upper clamping piece and a lower clamping piece, the upper clamping piece is at least provided with a protruding position, the operation key is at least provided with a groove supporting position matched with the protruding position, the upper end of the busbar and the upper clamping piece form a clamping opening with a certain angle, and a bare wire can be clamped. According to the utility model, the operation button is arranged, so that the bare wire can be conveniently clamped and pulled out; according to the utility model, the wire can be conveniently inserted and connected, the wire can be stably fixed and prevented from falling off, the structure is simple, and the wire can be repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of a wiring terminal, in particular to a threadless wiring terminal. Background Art

[0002] Conventional wiring terminals adopt a hardware structure in which a wire is inserted into a copper material, and then screws or the like are used for threadedly fixing the wire in the hardware to form a wiring function, and then the housing is assembled. In recent years, some wiring terminal structures that do not require screw or other threaded installation connections have also appeared on the market. These wiring terminals can achieve the effect of directly inserting the wire and then installing and fixing it. However, some existing threadless wiring terminals or one-step wiring terminals have problems such as insufficient firmness of the wiring of the hardware structure, inferior elastic pieces, overly complex structures, and loose fitting between the hardware and the housing, resulting in displacement of the installation position of the hardware, etc., leading to low electrical conductivity of the wiring, affecting the wiring effect and quality, and it is necessary to improve the products of the existing technology.

[0003] In order to overcome at least one of the above-mentioned defects of the existing technology, a wiring terminal with a simple structure, fast installation, safety and reliability is provided. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wiring terminal to solve at least one of the problems raised in the above background art. The wiring terminal of the utility model has a simple structure, fast installation, safety and reliability.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wiring terminal includes a housing, a cover body, a hardware terminal and an operation button. It is characterized in that: a cavity for accommodating and clamping the hardware terminal piece is arranged inside the housing, a wire insertion hole communicated with the cavity is arranged on the top surface of the housing, and the operation button is clamped and connected to the side surface of the housing; the hardware terminal includes a hardware busbar and an elastic piece, the hardware busbar includes an upper end of the busbar and a lower end of the busbar, the elastic piece includes an upper clip and a lower clip, at least one convex position is arranged on the upper clip, at least one groove support position is arranged on the operation button, the convex position is movably connected with the groove support position, the upper end of the busbar forms an included angle with the upper clip to hold against, the upper end of the busbar and the upper clip form a holding port at a certain angle, and a clamping device is formed by using the elastic force of the elastic piece and the busbar. At the position of the holding port corresponding to the wire insertion hole, the bare wire can be clamped tightly.

[0007] Further, the operation button includes an upper top portion and a lower abutting portion. The lower abutting portion is provided with an upper positioning piece and a lower positioning piece. One ends of the upper positioning piece and the lower positioning piece are respectively connected to the upper top portion, and the other ends are free ends and are provided with groove support positions. The two free ends of the upper positioning piece and the lower positioning piece are snapped into the inner cavity of the housing, and the groove support positions are respectively movably matched with the convex positions of the upper clamping piece.

[0008] Further, convex positions are respectively provided on both sides of the upper clamping piece, and a notch is provided at the free end.

[0009] The outer sides of the upper positioning piece and the lower positioning piece are provided with clamping protrusions that can play a positioning role. The groove support positions at the ends of the upper positioning piece and the lower positioning piece are arc-shaped; the convex positions on the upper clamping piece are arc-shaped, and the groove support positions are adapted to the convex positions. The arc-shaped convex positions can move in cooperation along the arc-shaped groove support positions. The operation button manipulates the metal terminal elastic piece through the cooperation of the groove support position and the convex position.

[0010] At the corresponding positions on the inner sides of the upper positioning piece and the lower positioning piece of the operation button, mutually cooperating limiting blocks are provided, which can enhance the limiting and clamping effects on the inserted bare wire.

[0011] In the utility model, by providing a clamping piece on the metal terminal, the clamping piece can apply a clamping force to the bare wire at the clamping opening, which is convenient for the insertion and connection of the wire, and can firmly fix the wire to prevent the wire from falling off. The structure is simple and can be used repeatedly. At the same time, through the action of the operation button, the upper top portion of the operation button drives the groove support force of the lower abutting portion of the operation button to cooperate with the convex position of the upper clamping piece through the sliding fulcrum of the strip-shaped column bayonet of the housing for rotation and pulling up and resetting, which is convenient for inserting or pulling out the wire from the wire insertion hole to the terminal as needed.

[0012] Further, the upper clamping piece is connected to the lower clamping piece, and a "V"-shaped structure is formed between the two, and the included angle is 20° - 70°, and the preferred range is 30° - 60°.

[0013] Further, the lower clamping piece is provided with a first bending portion and a second bending portion, and the bending directions of the first bending portion and the second bending portion are opposite to form a wavy shape.

[0014] Further, the number of the clamping pieces is the same as the number of the wire insertion holes, and the position of each clamping piece corresponds to the position of the wire insertion hole.

[0015] Further, in order to enhance the conduction rate of the metal terminal and improve the contact effect, the metal terminal is formed in a "Z" shape, and the metal terminal is provided with a first convex block and a second convex block. The first convex block is located at the lower end of the metal terminal, and the second convex block is located at the free end of the metal terminal.

[0016] Further, the number and positions of the first bumps on the metal terminal correspond to those of the lower clip, and the number and positions of the second bumps on the metal terminal correspond to those of the upper clip. Moreover, the second bumps on the metal terminal can just extend into the clamping opening formed between the metal terminal and the free end of the upper clip, and the free end of the upper clip and the plane of the second bumps are used to clamp the exposed wire part.

[0017] Further, the housing is enclosed by a bottom plate, a top plate, a front baffle, a rear baffle, a left side plate, and a right side plate.

[0018] The upper end of the left side plate of the housing is connected to the top plate, and the lower end is a free end. A positioning block is provided near the top plate in the direction of the cavity, and an insertion plate and a clamping block are provided on the outer side wall of the lower end of the left side plate.

[0019] Further, a bayonet and a strip-shaped column are provided on the right side plate of the housing. The strip-shaped column is located between two adjacent bayonets. The upper top of the operation button is at the upper end of the right side plate, and the upper positioning piece and the lower positioning piece of the lower abutting part are snapped into the cavity through two adjacent bayonets, and a strip-shaped column is clamped between the upper positioning piece and the lower positioning piece.

[0020] Further, the number of the bayonets is N + 1, where N is the number of wire insertion holes, and the width of the bayonet is suitable for inserting the operation button.

[0021] Further, the width of the strip-shaped column is adapted to the width of the wire insertion hole, and it has a rectangular structure. The upper end is connected to the top plate, and the lower end is a free end. A fixing structure is provided at the free end of the strip-shaped column.

[0022] Further, the fixing structure of the strip-shaped column includes a clamping block and a stepped concave position. The clamping block is located on the outer side wall of the end of the strip-shaped column, and the stepped concave position is provided on the inner side wall of the end of the strip-shaped column, facing the inner cavity of the housing, which is convenient for inserting the metal terminal, plays a fixing role, and can also be fixed in cooperation with the housing.

[0023] Further, the cover body includes a cover body main body, a left side surface of the cover body, a right side surface of the cover body, a front side surface of the cover body, a rear side surface of the cover body, and a bottom surface of the cover body. The left side surface of the cover body, the right side surface of the cover body, the front side surface of the cover body, the rear side surface of the cover body, and the bottom surface of the cover body are respectively provided on the cover body main body, enclosing a square groove structure.

[0024] Further, the positioning structure in the cover body includes a horizontal positioning plate and a vertical positioning plate perpendicular to the bottom surface, forming several rectangular or square grooves for limiting the metal terminal.

[0025] A positioning groove is provided between the positioning structure and the right side surface of the cover body for inserting the right side plate of the housing, and a positioning groove is provided between the positioning structure and the left side surface of the cover body for inserting the right side plate of the housing.

[0026] Furthermore, several countersinks with openings facing the middle cavity of the cover are provided on the inner side wall of the left side of the cover. Their sizes, quantities, shapes, and positions are adapted to the clamping blocks on the outer side wall of the lower end of the left side plate of the housing, playing a fixing role and preventing dislocation.

[0027] On the inner side wall of the right side of the cover, there are several countersinks with openings facing the middle cavity of the cover. Their sizes, quantities, shapes, and positions are adapted to the clamping blocks at the ends of the strip-shaped columns of the right side plate of the housing, playing a fixing role and preventing dislocation.

[0028] Furthermore, several test ports are provided on the bottom surface of the cover.

[0029] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0030] First, the present utility model includes a housing, a cover, a hardware terminal, and an operation button. By combining the housing and the cover, it facilitates the installation of the hardware terminal, improves the sealing performance, and enhances the production efficiency.

[0031] Second, the present utility model has made multiple improvements to the structure of the hardware terminal, such as the improvement of the clip structure, the improvement of the hardware terminal, and the improvement of the operation button structure. These improvements not only enhance the reliability of the clamping effect of the clip of the operation button on the wire, but also take into account the convenience of wire extraction. It can be repeatedly used on the basis of ensuring the performance of the hardware terminal, and further simplifies the structure of the hardware terminal, reducing the processing cost.

[0032] Third, the present utility model has made significant improvements to the housing. By utilizing the positional relationship of different components, more functions are set, making the internal structure of the housing more compact and practical, thereby reducing the processing difficulty and improving the processing efficiency.

[0033] Fourth, through the improvement of the cover, especially the setting of the first limit groove and the second limit groove of the cover, it plays an important role in the fixed installation of the end of the hardware terminal, which is simple and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figures 1-7 It is a schematic structural diagram of the wiring terminal of the present utility model.

[0035] Figures 8-10 It is a schematic structural diagram of the cover in the wiring terminal of the present utility model.

[0036] Figures 11-14 It is a schematic structural diagram of the housing in the wiring terminal of the present utility model.

[0037] Figures 15-20 It is a schematic structural diagram of the hardware terminal of the wiring terminal of the present utility model.

[0038] Figures 21-23Schematic diagram of the operation button in the terminal block of the present utility model Specific embodiments

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the present utility model, the positive direction of the X-axis is defined as left, and its opposite direction is right; the positive direction of the Y-axis is defined as front, and its opposite direction is rear; the positive direction of the Z-axis is defined as upper, and its opposite direction is lower.

[0040] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature.

[0042] In the description of this specification, the descriptions referring to the terms "embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0043] Please refer to Figures 1-20 The schematic diagrams showing the structures of the terminal block of the present utility model from different angles and read the following embodiments.

[0044] Embodiment

[0045] A wiring terminal includes a housing 1, a cover 2, a metal terminal 3, and an operation button 4.

[0046] The overall shape of the housing 1 is rectangular, and it can also be set into a cube or other irregular shapes according to actual needs. The housing is surrounded by a bottom plate 11, a top plate 12, a front baffle 13, a rear baffle 14, a left side plate 15, and a right side plate 16. A cavity 17 for accommodating the metal terminal 3 is provided inside the housing. The housing is preferably integrally formed, or it can also be connected by plugging or clamping two or more components.

[0047] The top plate 12 is provided with a plurality of wire insertion holes 121 that can communicate with the cavity. The wire insertion holes 121 can extend towards the cavity. The number of the wire insertion holes 121 is preferably 2 to 6, and can also be set according to actual needs, and is arranged along the length direction of the top plate of the housing. The wire insertion holes 121 are preferably approximately vertical square holes and extend from the top plate towards the cavity.

[0048] The metal terminal 3 includes a metal bus bar 31 and a spring piece 32. The metal terminal 3 forms a "Z" shape, and the shape of the metal terminal 3 in this patent is not limited to this. The metal bus bar 31 is provided with a first convex block 311 and a second convex block 312. The upper end of the metal bus bar 31 is a free end, and the lower end is connected to a clip. The first convex block 311 is located at the lower end of the metal bus bar 31, and the second convex block 312 is located at the free end of the metal bus bar 31.

[0049] It should be clear here that the metal terminal described in the present utility model is made of a conductive material, but the name of the metal terminal itself is not a limitation on the material of the metal terminal.

[0050] The spring piece 32 is connected to the metal bus bar 31. The spring piece 32 includes an upper clip 321 and a lower clip 322, and the upper clip is connected to the lower clip, forming a "V" - shaped structure between them, and the included angle is 20° - 70°, preferably in the range of 30° - 60°.

[0051] The upper clip 321 is a free end. Arc-shaped raised positions 3211 are respectively provided on both sides of the upper clip. A notch 3212 is provided at the free end. And a clamping opening 33 is formed between the free end and the upper end of the hardware busbar 31, which can clamp and connect the bare wire. The wire insertion hole 121 corresponds to the position of the clamping opening 33. One end of the lower clip 322 is connected to the upper clip 321, and the other end is connected to the hardware busbar 31. The lower end of the hardware busbar 31 and the lower clip 322 can be connected by a snap-in method. The lower clip 322 is provided with a first bending part 3221 and a second bending part 3222. The first bending part bends upward, and the second bending part bends downward. The bending directions are opposite to form a wavy shape. The included angle of the first bending part is 90° - 160°, and the included angle of the second bending part is 90° - 160°. Adopting this structure can make the lower clip generate stronger elastic force and clamping force, effectively prevent the deformation of the hardware terminal and produce a better clamping effect.

[0052] The number of the clips 32 is the same as the number of the wire insertion holes 121, and the position of each clip corresponds to the position of the wire insertion hole.

[0053] The number and position of the first convex blocks 311 on the hardware busbar 31 correspond to the lower clip 322, playing a fixing role. The number and position of the second convex blocks 312 on the hardware busbar 31 correspond to the upper clip 321. And a clamping opening 33 with a certain angle is formed between the upper end of the hardware busbar 31 and the upper clip 311. The elastic force of the elastic piece and the busbar form a clamping device.

[0054] The upper end of the left side plate 15 is connected to the top plate 12, and the lower end is a free end. A positioning block 151 is provided near the top plate towards the cavity direction, facilitating the fixing of the clip 32. An insertion plate 152 and a clamping block 153 are provided on the outer side wall of the lower end part.

[0055] A bayonet 161 and a strip-shaped column 162 are provided on the right side plate 16 of the housing. The strip-shaped column 162 is arranged between two adjacent bayonets 161. The number of the bayonets 161 is N + 1, where N is the number of the insertion holes, and the width of the bayonet is suitable for inserting the operation button 4. A strip-shaped column 162 is provided between two adjacent bayonets. The width of the strip-shaped column 162 is adapted to the width of the insertion hole, presenting a rectangular structure. The upper end is connected to the top plate, and the lower end is a free end. A fixing structure 1621 is provided at the free end of the strip-shaped column 162. The fixing structure 1621 includes a clamping block 1622 and a stepped concave position 1623. The clamping block 1622 is located on the outer side wall of the end part, and the stepped concave position 1623 is arranged on the inner side wall of the end part, facing the inner cavity direction of the housing, facilitating the insertion of the hardware terminal, playing a fixing role, and also being able to cooperate with the housing for fixing.

[0056] The operation button 4 is provided with an upper top portion 41 and a lower abutting portion 42. The lower abutting portion 42 is provided with an upper positioning piece 421 and a lower positioning piece 422. One ends of the upper positioning piece 421 and the lower positioning piece 422 are respectively connected to the upper top portion 41, and the other ends are free ends. The distance width between the upper positioning piece 421 and the lower positioning piece 422 is adapted to the width of the strip-shaped column 162, so that the upper positioning piece and the lower positioning piece of the operation button 4 can be respectively snapped into adjacent bayonet openings. The upper top portion 41 of the operation button 4 is at the upper end of the right side plate. The two free ends of the upper positioning piece and the lower positioning piece are snapped into the cavity through two adjacent bayonet openings, and a strip-shaped column 162 is clamped between the upper positioning piece and the lower positioning piece. Among them, the width of the bayonet opening at one end of the near front baffle and the rear baffle is greater than the thickness of the upper positioning piece or the lower positioning piece, for one of the upper positioning piece or the lower positioning piece to be snapped into. The width of the bayonet openings of the rest that are not near the front baffle and the rear baffle is greater than the thickness of the upper positioning piece and the lower positioning piece, so as to allow two corresponding positioning pieces of two adjacent operation buttons 4 to be snapped into.

[0057] A clamping convex 4211 is provided on the outer side of the upper positioning piece 421, a limiting block 4213 is provided on the inner side, and an arc-shaped groove support position 4212 is provided at the end of the upper positioning piece. Correspondingly, a clamping convex 4221 is provided on the outer side of the lower positioning piece 422, a limiting block 4223 is provided on the inner side, and an arc-shaped groove support position 4222 is provided at the end of the lower positioning piece. The arc-shaped groove support positions of the upper positioning piece and the lower positioning piece can be adapted to the arc-shaped convex positions 3211 respectively provided on both sides of the upper end of the upper clamping piece to play a movable connection role. The arc-shaped convex positions 3211 can move along the arc-shaped groove support positions in cooperation. The operation button manipulates the metal end elastic piece through the cooperation of the groove support position and the convex position. For example, under the action of an external force, the upper top portion of the operation button 4 drives the groove support force of the lower abutting portion of the operation button through the sliding fulcrum of the strip-shaped column bayonet opening of the housing to cooperate with the convex position of the upper clamping piece for rotation and pulling up and returning, so as to facilitate inserting or pulling out the wire from the wire insertion hole to the terminal as needed. The limiting block 4213 of the upper positioning piece corresponds to the limiting block 4223 of the lower positioning piece in position, and they cooperate with each other to enhance the limiting and clamping effects on the inserted bare wire.

[0058] The operation button 4 is made of a non-conductive material such as plastic, which not only plays a role in limiting and fixing, but also plays a role in guiding and spacing, enables the wire to be smoothly inserted into the metal terminal, and plays an insulation protection role to avoid short-circuit accidents caused by contact between two adjacent bare wires.

[0059] The bottom plate 11 is an open structure that penetrates through the cavity.

[0060] A fixing device 131 is provided at the lower end of the front baffle 13 of the housing. The fixing device 131 includes an insertion plate 132 and a fixing piece 133. The fixing piece 133 is provided at the lower end edge of the insertion plate 132.

[0061] A fixing device 141 is provided at the lower end of the rear baffle 14 of the housing. The fixing device 141 includes a plug board 142 and a fixing piece 143. The fixing piece 143 is arranged at the lower end edge of the plug board 142.

[0062] The cover body 2 includes a cover body main body 21, a left side surface 22 of the cover body, a right side surface 23 of the cover body, a front side surface 24 of the cover body, a rear side surface 25 of the cover body, and a bottom surface 26 of the cover body. The left side surface 22 of the cover body, the right side surface 23 of the cover body, the front side surface 24 of the cover body, the rear side surface 25 of the cover body, and the bottom surface 26 of the cover body are respectively arranged on the cover body main body 21 to form a square groove structure.

[0063] A positioning structure 211 capable of accommodating and clamping a hardware terminal is provided in the middle of the cover body main body 21. The lower ends of the left side plate 15 and the right side plate 16 of the housing are respectively connected to the upper ends of the left side surface 22 and the right side surface 23 of the cover body. The lower ends of the front baffle 13 and the rear baffle 14 of the housing are respectively connected to the upper ends of the front side surface 24 and the rear side surface 25 of the cover body.

[0064] The positioning structure 211 in the middle of the cover body includes a horizontal positioning plate 2111 and a vertical positioning plate 2112 perpendicular to the bottom surface. The horizontal positioning plate 2111 and the vertical positioning plate 2112 form a number of rectangular or square grooves for limiting the hardware terminal.

[0065] A positioning groove is provided between the positioning structure 211 and the right side surface 23 of the cover body for the right side plate 16 of the housing to be inserted. A positioning groove is provided between the positioning structure 211 and the left side surface 22 of the cover body for the left side plate 15 of the housing to be inserted.

[0066] The positioning structure 211 abuts against the stepped concave position 1624 of the bar-shaped column 162 fixing structure, which can play a positioning role.

[0067] The heights of the front side surface 24 and the rear side surface 25 of the cover body are adapted to the heights of the fixing devices 131 or 141 of the front baffle 13 and the rear baffle 14 of the housing. The front side surface 24 of the cover body is provided with a first limiting groove 241. When the fixing device at the lower end of the front baffle 13 of the housing is inserted, the first limiting groove 241 is adapted to the fixing device 131. Among them, the plug board 1311 and the fixing piece 1312 can be inserted into the first limiting groove 241 to play a fixing role. In addition, the inner side of the first limiting groove 241 is the horizontal positioning plate 2111 of the positioning structure 21, which plays a better fixing and limiting role. Similarly, the rear side surface 25 of the housing cover body is provided with a second limiting groove 251. When the fixing device at the lower end of the rear baffle of the housing is inserted, the second limiting groove 251 is adapted to the fixing device 141. Among them, the plug board 1411 and several fixing pieces 1412 are inserted into the second limiting groove 251 to play a fixing role. In addition, the inner side of the second limiting groove 251 is the horizontal positioning plate 2111 of the positioning structure 21, which plays a better fixing and limiting role.

[0068] On the inner side wall of the left side surface 22 of the cover body, there are a number of countersinks 221 with openings facing the middle cavity of the cover body, and their sizes, quantities, shapes and positions are adapted to the insertion plates 152 and clamping blocks 153 on the outer side wall of the lower end of the left side plate of the housing. When the housing 1 is inserted into the cover body 2, the insertion plate 152 at the lower end of the left side plate of the housing is inserted into the positioning groove formed between the left side surface of the cover body and the positioning structure 21, and the clamping block 153 cooperates with the countersink 221 on the left side surface of the cover body to play a fixing role and prevent dislocation. Similarly, on the inner side wall of the right side surface 23 of the cover body, there are a number of countersinks 231 with openings facing the middle cavity of the cover body, and their sizes, quantities, shapes and positions are adapted to the clamping blocks 1632 at the ends of the strip-shaped columns of the right side plate of the housing. When the housing is inserted into the cover body, the lower end of the right side plate of the housing is inserted into the positioning groove formed between the right side surface of the cover body and the positioning structure 21, and the clamping block 1622 cooperates with the countersink 231 on the right side surface of the cover body to play a fixing role and prevent dislocation.

[0069] On the bottom surface 26 of the cover body, there are a number of test holes 261.

[0070] During installation, the hardware terminals are placed into the cavity of the housing. The top of the "V"-shaped structure of the clip of the hardware terminal abuts against the positioning block 151 at the upper end of the left side plate, the lower clip contacts the left side panel 15 of the housing, the first convex block 311 of the hardware terminal can abut against the left side panel of the housing to play a positioning role, the bottom of the free end of the hardware terminal is placed into the cavity of the cover body, and is fixed and limited by the positioning structure of the cover body. The top of the free end of the hardware terminal is located in the gap between the positioning structure of the cover body and the left side panel of the housing.

[0071] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A terminal block, comprising a housing, a cover, a hardware terminal and an operating button, characterized in that: The shell is provided with a cavity for accommodating clamping hardware terminals, the top surface of the shell is provided with a wire insertion hole connected to the cavity, and the side of the shell is snap-connected to the operation button; the hardware terminal includes a hardware bus and a spring, the hardware bus includes an upper end of the bus and a lower end of the bus, the spring includes an upper clamp and a lower clamp, the upper clamp has at least one protruding position, the operation button has at least one groove supporting position, the protruding position is movably connected to the groove supporting position, the upper end of the bus forms an angle with the upper clamp to support it, the upper end of the bus and the upper clamp form a clamping opening at a certain angle, the elastic force of the spring and the bus form a clamping device, the clamping opening position corresponds to the wire insertion hole, and the exposed wire can be clamped.

2. A terminal block according to claim 1, characterized in that: The operation button includes an upper top and a lower abutment, the lower abutment is provided with an upper positioning piece and a lower positioning piece, one end of the upper positioning piece and the lower positioning piece are respectively connected to the upper top, and the other end is a free end and is provided with a groove support position, the two free ends of the upper positioning piece and the lower positioning piece are inserted into the inner cavity of the shell, and the groove support positions are respectively moved in cooperation with the raised positions of the upper clamping piece.

3. A terminal block according to claim 2, characterized in that: The upper clamping piece is provided with protrusions on both sides and a notch at the free end; The outer sides of the upper positioning piece and the lower positioning piece are provided with a convex clamping member that can play a positioning role, and the groove support positions at the ends of the upper positioning piece and the lower positioning piece are arc-shaped; the convex position on the upper clamping piece is arc-shaped, and the groove support position is adapted to the convex position, and the arc-shaped convex position can move along the arc-shaped groove support position; The inner side surface of the upper positioning piece of the operation button and the inner side surface of the lower positioning piece are provided with corresponding positions of mutually matching limiting blocks.

4. A terminal block according to claim 1, characterized in that: The upper clamping piece is connected to the lower clamping piece, and a "V"-shaped structure is formed therebetween, with an included angle of 20°-70°.

5. A terminal block according to claim 1, characterized in that: The lower clamping piece is provided with a first bending portion and a second bending portion, and the first bending portion and the second bending portion are bent in opposite directions to form a wave shape.

6. A terminal block according to claim 1, characterized in that: The number of the clips is the same as the number of the wire insertion holes, and the position of each clip corresponds to the position of the wire insertion hole.

7. A terminal block according to claim 1, characterized in that: The hardware terminal forms a "Z" shape, and is provided with a first protrusion and a second protrusion. The first protrusion is located at the lower end of the hardware terminal, and the second protrusion is located at the free end of the hardware terminal.

8. A terminal block according to claim 7, characterized in that: The number and position of the first protrusions on the hardware terminal correspond to the lower clamp, the number and position of the second protrusions on the hardware terminal correspond to the upper clamp, and the second protrusions on the hardware terminal can just extend into the clamping opening formed by the hardware terminal and the free end of the upper clamp, and the free end of the upper clamp and the plane of the second protrusion are used to clamp the exposed wire part.

9. A terminal block according to claim 2, characterized in that: The shell is surrounded by a bottom plate, a top plate, a front baffle, a rear baffle, a left side plate and a right side plate; The upper end of the left side plate of the shell is connected to the top plate, and the lower end is a free end. A positioning block is provided near the top plate toward the cavity, and an insert plate and a clamping block are provided on the outer side wall of the lower end of the left side plate; The right side plate of the shell is provided with a bayonet and a strip column, the strip column is arranged between two adjacent bayonet holes, the upper top of the operation button is at the upper end of the right side plate, the upper positioning piece and the lower positioning piece of the lower support part are inserted into the cavity through two adjacent bayonet holes, and a strip column is clamped between the upper positioning piece and the lower positioning piece.

10. A connection terminal according to claim 9, characterized in that: The number of the bayonet is equal to the number of the wire insertion holes N+1, and the width of the bayonet is preferably large enough to fit the operation button.

11. A connection terminal according to claim 9, characterized in that: The width of the strip column is matched with the width of the wire plug-in hole, and it is a rectangular structure, with the upper end connected to the top plate and the lower end being a free end; the free end of the strip column is provided with a fixed structure.

12. A connection terminal according to claim 11, characterized in that: The fixing structure of the strip column includes a block and a stepped recess, wherein the block is located on the outer side wall of the end of the strip column, and the stepped recess is arranged on the inner side wall of the end of the strip column, facing the inner cavity of the shell.

13. A connection terminal according to claim 11, characterized in that: The cover body includes a cover body, a left side surface of the cover body, a right side surface of the cover body, a front side surface of the cover body, a rear side surface of the cover body and a bottom surface of the cover body. The left side surface of the cover body, the right side surface of the cover body, the front side surface of the cover body, the rear side surface of the cover body and the bottom surface of the cover body are respectively arranged on the cover body to form a square trough structure.

14. A connection terminal according to claim 13, characterized in that: The positioning structure in the cover body includes a plurality of rectangular or long grooves formed by a horizontal positioning plate and a vertical positioning plate perpendicular to the bottom surface, which are used to limit the position of the hardware terminal; A positioning groove is provided between the positioning structure and the right side surface of the cover body for the right side plate of the shell to be inserted into, and a positioning groove is provided between the positioning structure and the left side surface of the cover body for the right side plate of the shell to be inserted into.

15. A connection terminal according to claim 13, characterized in that: The inner wall of the left side of the cover body is provided with a plurality of sinks with openings facing the middle cavity of the cover body, and the size, number, shape and position of the sinks are adapted to the block on the outer wall of the lower end of the left side plate of the shell; The inner side wall of the right side of the cover body is provided with a plurality of sinks with openings facing the middle cavity of the cover body, and the size, number, shape and position of the sinks are matched with the clamping block at the end of the spacer piece of the right side plate of the shell body.

16. A terminal block according to any one of claims 1 to 15, characterized in that: A plurality of test ports are arranged on the bottom surface of the cover body.

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