Wiring terminal

Abstract

The utility model relates to a wiring terminal, which comprises a shell, a cover body, a hardware terminal and operation keys, a cavity capable of accommodating 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 two corresponding side surfaces of the shell are connected with the operation keys; the hardware terminal comprises a hardware busbar and an elastic piece, the elastic piece comprises a first clamping piece and a second clamping piece, the upper clamping piece of the first clamping piece and the lower clamping piece of the second clamping piece are at least provided with a protruding position, the operation key is at least provided with a groove supporting position, and the protruding position is movably connected with the groove supporting position; a clamping opening is formed by the busbar and the elastic sheet and can tightly clamp the bare wire. The wiring terminal provided by the utility model can realize the insertion connection of the lead without the help of an external tool, can stably fix the lead, prevents the lead from falling off, and can be repeatedly used.

Description

Technical Field

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

[0002] Conventional wiring terminals adopt a hardware structure in which a wire is inserted into copper material, and then screws are used for threaded fixation to form a wiring function of the wire in the hardware, and then the housing is assembled. In recent years, some wiring terminal structures that do not require threaded installation and connection with screws have also emerged on the market. These wiring terminals can achieve the effect of directly inserting and fixing the wire. 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 of the hardware and the housing, resulting in displacement of the installation position of the hardware, leading to low electrical conductivity of the wiring, affecting the wiring effect and quality, and the products of the existing technology need to be improved.

[0003] 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.

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

[0006] The utility model provides a wiring terminal, which includes a housing, a cover body, a hardware terminal and an operation button. A cavity for accommodating the hardware terminal is arranged inside the housing. A wire insertion hole communicating with the cavity is arranged on the top surface of the housing. The operation buttons are connected to the two opposite side surfaces of the housing. The hardware terminal includes a hardware busbar and an elastic piece. The hardware busbar includes an upper end of the busbar, a lower end of the busbar and a connecting piece. The middle of the upper end of the busbar and the lower end of the busbar is connected by the connecting piece, and each of the upper end of the busbar and the lower end of the busbar has a free end. The elastic piece includes a first clip and a second clip. The first clip and the second clip are respectively provided with an upper clip and a lower clip. At least one convex position is arranged on the upper clip of the first clip and the lower clip of the second clip. The operation button has at least one groove support position. The convex position is movably connected with the groove support position.

[0007] The upper end of the busbar abuts against the upper clamping piece of the first clamping piece, forming a clamping opening with a certain angle with the upper clamping piece of the first clamping piece. A clamping device is formed by using the elastic force of the elastic piece and the busbar; the lower end of the busbar abuts against the lower clamping piece of the second clamping piece, forming a clamping opening with a certain angle with the lower clamping piece of the second clamping piece. A clamping device is formed by using the elastic force of the elastic piece and the busbar. The position of the clamping opening corresponds to the wire insertion hole, and the bare wire can be clamped tightly.

[0008] In the present utility model, by providing the first clamping piece and the second clamping piece on the hardware terminal, a clamping force can be applied to the bare wire at the clamping opening, which is convenient for the insertion 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, a better clamping effect is generated through the action of the operation button, and it is convenient to insert or pull out the bare wire as needed.

[0009] In an alternative embodiment: in the above-mentioned wiring terminal, the operation button includes an upper top and a lower abutting part. The lower abutting part 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, 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 clamped into the inner cavity of the housing.

[0010] The groove support positions are respectively movably matched with the protruding positions of the upper clamping piece.

[0011] On both sides of the upper clamping piece of the first clamping piece and the lower clamping piece of the second clamping piece, protruding positions are respectively provided, and notches are provided at the free ends.

[0012] On the outer sides of the upper positioning piece and the lower positioning piece, there are convex bumps 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 protruding positions of the upper clamping piece of the first clamping piece and the lower clamping piece of the second clamping piece are arc-shaped. The groove support position is adapted to the protruding position, and the arc-shaped protruding position can move along the arc-shaped groove support position.

[0013] At corresponding positions on the inner sides of the upper positioning piece and the lower positioning piece of the operation button, there are mutually cooperating limit blocks.

[0014] The upper clamping piece and the lower clamping piece of the first clamping piece are connected, and the upper clamping piece and the lower clamping piece of the second clamping piece are connected. A "V"-shaped structure is formed between the upper clamping piece and the lower clamping piece, and the included angle is 20° - 70°, preferably in the range of 30° - 60°.

[0015] In an alternative embodiment: the connection pieces of the first clamping piece, the second clamping piece and the hardware busbar form a clamping groove, and the clamping groove has a structure similar to a "U" shape.

[0016] In an alternative solution: One end of the lower clip of the first clip is connected to the connecting piece of the hardware busbar; The lower clip is provided with a first bending portion and a second bending portion, the first bending portion is bent upward, and the second bending portion is bent downward, with opposite bending directions to form a wavy shape;

[0017] The upper clip of the second clip is connected to the hardware busbar; The upper clip of the second clip is provided with a first bending portion and a second bending portion, the first bending portion is bent downward, and the second bending portion is bent upward, with opposite bending directions to form a wavy shape.

[0018] In an alternative solution: Among the above-mentioned terminal blocks, the included angle of the first bending portion is 90° - 160°, and the included angle of the second bending portion is 90° - 160°.

[0019] In an alternative solution: The number of the first clip and the second clip is the same as the number of wire insertion holes, and they are arranged side by side on the upper end and the lower end of the busbar, and the position of each clip corresponds to the position of the wire insertion hole.

[0020] In an alternative solution: Among the above-mentioned terminal blocks, the free ends of the upper end and the lower end of the hardware terminal busbar are respectively provided with bumps, and the bumps can extend into the clamping openings, and together with the busbar form a clamping device by the elastic force of the elastic piece for clamping the exposed wire part.

[0021] In an alternative solution: Among the above-mentioned terminal blocks, the number and position of the bumps on the hardware terminal respectively correspond to the number and position of the upper clip of the first clip and the lower clip of the second clip, and the bumps on the hardware terminal can just extend into the clamping openings formed between the free end of the upper clip of the hardware terminal and the first clip or the free end of the lower clip of the second clip respectively, and the free ends of the upper clip of the first clip and the lower clip of the second clip are respectively used to clamp the exposed wire part with the plane of the bumps.

[0022] In an alternative solution: Among the above-mentioned terminal blocks, the housing is surrounded by a bottom plate, a top plate, a front baffle, a rear baffle, a left side plate and a right side plate;

[0023] The top plate is provided with a first middle partition, and the wire insertion hole and the first middle partition can extend towards the cavity direction;

[0024] The inner cavity of the housing is provided with a second middle partition, which can be inserted into the "U"-shaped clip groove between the first clip and the second clip provided on the hardware terminal. The upper end of the second middle partition is connected to the first middle partition, and the lower end is a free end.

[0025] In an alternative solution: Among the above-mentioned terminal blocks, the lower ends of the front baffle and the rear baffle of the housing are provided with fixing devices;

[0026] The fixing device includes a plug board, a number of fixing pieces, and a positioning concave; a number of fixing pieces are provided on both sides and the lower edge of the plug board, and the positioning concave is at the lower edge of the plug board, and the notch direction is perpendicular to the fixing pieces.

[0027] In an alternative solution: in the above-mentioned terminal, at the upper end of the left side plate of the housing, a top plate is connected, and the lower end is a free end. The free end is provided with a bayonet and a strip column. The strip column is arranged between two adjacent bayonets. The upper top of the operation button is at the upper end of the left 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 column is clamped between the upper positioning piece and the lower positioning piece;

[0028] At the upper end of the right side plate of the housing, a top plate is connected, and the lower end is a free end. The free end is provided with a bayonet and a strip column. The strip column is arranged 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 column is clamped between the upper positioning piece and the lower positioning piece.

[0029] In an alternative solution: in the above-mentioned terminal, the number of bayonets is N + 1, where N is the number of wire insertion holes, and the width of the bayonet is suitable for clamping the operation button; the strip column is arranged between two adjacent bayonets to avoid functional interference between adjacent clamping pieces.

[0030] In an alternative solution: in the above-mentioned terminal, the width of the strip 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 column.

[0031] In an alternative solution: in the above-mentioned terminal, the fixing structure at the free end of the strip column includes a first clamping block, a second clamping block, and a stepped concave. The first clamping block and the second clamping block are located on the outer side wall of the end, and the stepped concave is provided on the inner side wall of the end, facing the inner cavity of the housing, which is convenient for inserting the hardware terminal.

[0032] In an alternative solution: in the above-mentioned terminal, the cover body includes a cover body main body, a cover body left side, a cover body right side, a cover body front side, a cover body rear side, and a cover body bottom surface. The cover body left side, the cover body right side, the cover body front side, the cover body rear side, and the cover body bottom surface are respectively arranged on the cover body main body, enclosing a square groove structure.

[0033] In an alternative solution: in the above-mentioned terminal, a positioning structure capable of accommodating the hardware terminal is provided in the middle of the cover body main body. The positioning structure includes a number of mutually perpendicular positioning columns, forming a square or rectangular groove, which is used to limit the hardware terminal of the housing when the cover body is installed and connected to the housing.

[0034] In an alternative solution: among the above-mentioned terminal blocks, the heights of the front and rear sides of the cover body are adapted to the heights of the fixing devices of the front and rear baffles of the housing; a first limiting groove is provided on the front side of the cover body, and a card is provided on the first limiting groove, and the size and shape of the card are adapted to the positioning concave position at the lower end of the front baffle of the housing;

[0035] A second limiting groove is provided on the rear side of the housing cover body, and a card is provided on the second limiting groove, and the size and shape of the card are adapted to the positioning concave position at the lower end of the rear baffle.

[0036] In an alternative solution: among the above-mentioned terminal blocks, a plurality of countersinks with openings facing the middle cavity of the cover body are provided on the inner side wall of the left or right side of the cover body, and their sizes, quantities and shapes are adapted to the clamping blocks at the ends of the strip-shaped columns on the left or right side plates of the housing. When the housing is inserted into the cover body, it plays a fixing role to prevent dislocation

[0037] In an alternative solution: among the above-mentioned terminal blocks, at least one test port is provided on the bottom surface of the cover body.

[0038] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0039] First, the present utility model includes a housing, a cover body, a hardware terminal and an operation button, with a compact structure, good sealing performance, safety and reliability, convenient installation, simplified product structure and installation process, and improved production efficiency.

[0040] Second, the present utility model has made multiple improvements to the structure of the hardware terminal, such as the improvement of the structures of the first clamping piece and the second clamping piece and the improvement of the structure of the operation button. These improvements not only further improve the clamping effect of the clamping pieces of the hardware terminal on the wire, but also use the operation button structure to enhance the clamping effect and release the clamping effect, making it easy to pull out the wire. 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 and reduces the volume setting.

[0041] Third, the present utility model has made a major improvement to the housing. By using the positional relationship of different components, more functions are set, the internal structure of the housing is more compact and lightweight, more practical, simplifies the structure setting of the housing, thereby reducing the processing difficulty, improving the processing efficiency and reducing the processing cost.

[0042] Fourth, the present utility model has made improvements to the cover body, especially by setting the first limiting groove and the second limiting groove of the cover body, which plays an important role in the fixed installation of the end of the hardware terminal, is convenient for installation and prevents falling off and displacement. Description of the Drawings

[0043] Figure 1 Structural schematic diagram of the terminal block of the present utility model Figure 1。

[0044] Figure 2 Structural schematic of the terminal block of the present utility model Figure 2 。

[0045] Figure 3 Structural schematic of the terminal block of the present utility model Figure 3 。

[0046] Figure 4 Structural schematic of the cover body of the terminal block of the present utility model Figure 1 。

[0047] Figure 5 Structural schematic of the cover body of the terminal block of the present utility model Figure 2 。

[0048] Figure 6 Structural schematic of the cover body of the terminal block of the present utility model Figure 3 。

[0049] Figure 7 Figure - 11 is a structural schematic diagram of the housing of the terminal block of the present utility model.

[0050] Figures 12 - 19 Structural schematic diagram of the hardware terminal of the terminal block of the present utility model

[0051] Figures 20 - 22 Structural schematic diagram of the operation button of the terminal block of the present utility model

[0052] In the figure: housing 1, bottom plate 11, top plate 12, front baffle 13, rear baffle 14, left side plate 15, right side plate 16, first middle partition 122, second middle partition 17, wire insertion hole 121, cavity 18, fixing device 131, insertion plate 1311, fixing piece 1312, positioning concave position 1313, fixing device 141, insertion plate 1411, fixing piece 1412, positioning concave position 1413, bayonet 152, strip-shaped column 153, stepped concave position 1531, block 1532, bayonet 162, strip-shaped column 163, stepped concave position 1631, block 1632

[0053] Hardware terminal 3, hardware busbar 31, elastic piece 32, upper end of busbar 311, lower end of busbar 312, connecting piece 313, first clip 33, second clip 34, first clamping opening 35, second clamping opening 36, clamping groove 37, upper clip 331 of the first clip, lower clip 332 of the first clip, upper clip 341 of the second clip, lower clip 342 of the second clip, convex block 3111, convex block 3121, protruding position 3421, protruding position 3311, notch 3312, notch 3422, first bending part 3411 of the upper clip 341 of the second clip, second bending part 3412 of the upper clip 341, the lower clip 332 of the first clip is provided with a first bending part 3321 and a second bending part 3322

[0054] Operation button 4, upper top 41, lower abutting part 42, upper positioning piece 421, lower positioning piece 422, clamping convex 4211, limiting block 4213, groove support position 4212, clamping convex 4221, limiting block 4223, groove support position 4222.

[0055] Cover body 2, cover body main body 21, left side surface 22 of the cover body, right side surface 23 of the cover body, front side surface 24 of the cover body, rear side surface 25 of the cover body, bottom surface 26 of the cover body, positioning structure 21, positioning column 211, first limiting groove 241, card 2411, second limiting groove 251, card 2511, counterbore 221, counterbore 231 Specific embodiments

[0056] In the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship 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, so it 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.

[0057] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; 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 defined. 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.

[0058] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature.

[0059] In the description of this specification, the descriptions referring to terms such as "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 expressions 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.

[0060] Please refer to Figures 1 - 19 The structural schematic diagrams of the wiring terminal of the present utility model from different angles to read the following embodiments.

[0061] Embodiment:

[0062] This embodiment discloses a wiring terminal, including a housing 1, a cover 2, a hardware terminal part 3 and an operation button 4.

[0063] The overall housing 1 is in the shape of a cuboid, and can also be set into a cube or other irregular shapes according to actual needs. The housing 1 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 second middle partition 17 and a cavity 18 for accommodating hardware parts are provided inside the housing. The housing is preferably integrally formed, or can also be connected by plugging or snapping two or more components.

[0064] The top plate 12 is provided with a plurality of wire insertion holes 121 and a first middle partition 122 that can communicate with the cavity. The wire insertion holes 121 and the first middle partition 122 can extend towards the cavity direction to connect with the second middle partition 17. The number of the wire insertion holes is preferably 2 to 6, and can also be set according to actual needs. The wire insertion holes 121 are divided into upper and lower rows, and each row is arranged side by side along the length direction of the housing top plate. The wire insertion holes 121 are preferably approximately vertical square holes and extend from the top plate towards the cavity direction. The first middle partition is a hollow groove-shaped structure.

[0065] The hardware terminal 3 includes a hardware busbar 31 and an elastic piece 32. The hardware busbar 31 includes an upper busbar end 311, a lower busbar end 312, and a connecting piece 313. The upper busbar end 311 and the lower busbar end 312 are connected by the connecting piece 313 in the middle, and each of the upper busbar end and the lower busbar end has a free end. The upper busbar end 311 extends obliquely downward to the left, forming an inverted "L" shape. A convex block 3111 is provided on the upper busbar end 311. The lower busbar end 312 extends obliquely upward to the left, forming an "L" shape. A convex block 3121 is provided on the lower busbar end 312. The number and position of the convex block 3111 respectively correspond to the number and position of the upper clip of the first clip, and the convex block 3121 corresponds to the number and position of the lower clip of the second clip. The connecting piece 313 has a U-shaped structure, its upper end is connected to the upper busbar end 311, and the lower end of the connecting piece 313 is connected to the lower busbar end 312. The upper busbar end 311, the lower busbar end 312, and the connecting piece 313 are integrally formed, preferably with an upper and lower symmetrical structure, and the whole is in the shape of "[", but the shape of the hardware part in this patent is not limited to this. It should be clear here that the hardware terminal described in this patent is made of a conductive material, but the name of the hardware terminal itself is not a limitation on the material of the hardware terminal.

[0066] The elastic piece 32 includes a first clip 33 and a second clip 34. The first clip and the second clip are respectively provided with an upper clip and a lower clip. The first clip 33 includes an upper clip 331 and a lower clip 332, and the upper clip is connected to the lower clip, forming a "V" - shaped structure therebetween, and the included angle is 20° - 70°, preferably in the range of 30° - 60°. The upper clip 331 of the first clip is a free end. Arc - shaped raised positions 3311 are respectively provided on both sides of the upper clip 331, and a notch 3312 is provided at the free end, and the free end and the upper busbar end 311 form a first clamping opening 35. The convex block 3111 can just extend into the first clamping opening 35, and together with the elastic force of the elastic piece, it forms a clamping device with the busbar. The part between the free end of the upper clip 331 of the first clip and the plane of the convex block is used to clamp the exposed wire part.

[0067] One end of the lower clip 332 of the first clip is connected to the connecting piece 313. The lower clip 332 is provided with a first bending part 3321 and a second bending part 3322. The first bending part bends upward, and the second bending part bends downward, with opposite bending directions forming 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 upper clip generate stronger elastic force, effectively prevent the deformation of the hardware body and produce a better clamping effect.

[0068] Similarly, the second clip 34 includes an upper clip 341 and a lower clip 342. The upper clip 341 is connected to the connecting piece 313, and the lower clip is a free end. On both sides of the lower clip 342, there are respectively provided arc-shaped raised positions 3421, and a notch 3422 is provided at the free end. Moreover, the free end and the lower end 312 of the bus bar form a second clamping opening 36. The convex block 3121 can just extend into the second clamping opening 36, and together with the elastic force of the elastic piece and the bus bar, a clamping device is formed. Between the free end of the lower clip 342 of the second clip 34 and the plane of the convex block, the exposed wire part is clamped.

[0069] The upper clip 341 is provided with a first bending part 3411 and a second bending part 3412. The first bending part bends downward, and the second bending part bends upward. 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 upper clip generate stronger elastic force, effectively prevent the deformation of the hardware body and produce a better clamping effect.

[0070] The number of the first clips and the second clips is the same as the number of wire insertion holes, and they are arranged side by side on the upper end and the lower end of the bus bar. The position of each clip corresponds to the position of the wire insertion hole. The first clip 33, the second clip 34 and the connecting piece 313 form a clip groove 37, and this clip groove has a structure similar to a "U" shape. Since the lower end of the upper clip of the first clip is provided with a first bending part and a second bending part, and the upper end of the upper clip of the second clip is provided with a first bending part and a second bending part, and their directions are opposite to form a stronger clamping force.

[0071] The upper ends of the left side plate 15 and the right side plate 16 of the housing are respectively connected to the top plate. The lower end of the left side plate 15 is a free end for fixing the hardware terminal 3. The free end of the left side plate 15 is provided with a plurality of bayonets 152 and a plurality of strip-shaped columns 153. A plurality of operation buttons 4 are connected to the upper part of the left side plate 15. The operation button 4 is provided with an upper top part 41 and a lower abutting part 42. The lower abutting part 42 is provided with an upper positioning piece 421 and a lower positioning piece 422.

[0072] The number of bayonets on the left side plate 15 is N + 1, where N is the number of the insertion holes 121. The width of the bayonet is suitable for inserting the positioning card. There is a strip-shaped column 153 between two adjacent bayonets. The width of the strip-shaped column 153 is adapted to the width of the insertion hole 121, and it has a rectangular structure. The upper end is connected to the top plate, and the lower end is a free end. On the inner side wall of the free end of the strip-shaped column 153, a stepped concave position 1531 is provided towards the inner cavity of the housing, which is convenient for inserting the hardware terminal and plays a fixing role. On the outer side wall of the free end of the strip-shaped column, near the end, there is a clamping block 1532, which plays a fixing role.

[0073] One end of the upper positioning piece 421 and the lower positioning piece 422 of the operation button 4 is respectively connected to the upper top 41, and the other end is a free end. 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 153, so that the upper positioning piece and the lower positioning piece of the operation button 4 can be respectively snapped into adjacent card slots. When in use, the upper top 41 of the operation button 4 is at the upper end of the left side plate. The two free ends of the upper positioning piece and the lower positioning piece are snapped into the cavity through two adjacent card slots, and the strip-shaped column 153 is clamped between the upper positioning piece and the lower positioning piece. The width of the card slot 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 card slots of the rest that are not the near 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.

[0074] A clamping protrusion 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 protrusion 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 raised positions 3311 respectively provided on both sides of the upper end of the upper clamping piece of the first clamp to achieve a movable connection. The arc-shaped raised positions 3311 can move along the arc-shaped groove support positions in cooperation, and the operation button manipulates the metal end elastic piece through the cooperation of the groove support position and the raised position. Under the action of an external force, the upper top of the operation button 4 drives the groove support force at the lower bottom of the operation button to cooperate with the raised position of the upper clamping piece to rotate and pull up and return through the sliding fulcrum of the strip-shaped column card slot of the shell, so as to facilitate the insertion or extraction of the wire from the wire insertion hole into 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.

[0075] 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, enabling the wire to be smoothly inserted into the hardware part, and playing an insulating protection role to avoid short-circuit accidents caused by the contact of two adjacent bare wires.

[0076] Adopting this structure enables the operation button 4 to move up and down along the adjacent bayonet 152. When the operation button 4 is opened, the operation button 4 is located at the lower end of the bayonet 152. The movement of the upper positioning piece 42 and the lower positioning piece 43 is used to manipulate the metal terminal elastic piece to release the clamping effect on the inserted bare wire, so that the wire can be inserted or removed. When the operation button 4 is closed, the operation button 4 returns to the upper end of the bayonet 152. By moving the upper positioning piece 42 and the lower positioning piece 43, the metal terminal elastic piece is manipulated to resume the limiting and clamping effect on the inserted bare wire.

[0077] Similarly, the lower end of the right side plate 16 is a free end for fixing the metal terminal 3. The free end of the right side plate 16 is provided with a plurality of bayonets 162 and a plurality of strip-shaped columns 163. The upper part of the right side plate 16 is connected with a plurality of operation buttons 4. The operation button 4 is provided with an upper top 41 and a lower abutting part 42. The lower abutting part 42 is provided with an upper positioning piece 421 and a lower positioning piece 422.

[0078] The number of bayonets on the right side plate 16 is N + 1, the width of the bayonet is suitable for inserting the operation button 4, and a strip-shaped column 163 is provided between two adjacent bayonets. The width of the strip-shaped column 163 is adapted to the width of the insertion hole 121, and it has a rectangular structure. The upper end is connected to the top plate, and the lower end is a free end. The inner side wall of the free end of the strip-shaped column 163 is provided with a stepped concave position 1631 towards the inner cavity of the housing, which is convenient for inserting the metal terminal and plays a fixing role. A clamping block 1632 is provided on the outer side wall of the free end of the strip-shaped column near the end, which plays a fixing role.

[0079] One end of the upper positioning piece 421 and the lower positioning piece 422 of the operation button 4 is respectively connected to the upper top 41, and the other end is a free end. 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 163, so that the upper positioning piece and the lower positioning piece of the operation button 4 can be respectively clamped into adjacent bayonets. During use, the upper top 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 clamped into the cavity through two adjacent bayonets, and a strip-shaped column 163 is clamped between the upper positioning piece and the lower positioning piece. Among them, the width of the bayonet near one end of the 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 clamped into. The width of the bayonets 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 clamped into.

[0080] On the outer side of the upper positioning piece 421, there is a clamping protrusion 4211, on the inner side surface, there is a limiting block 4213, and at the end of the upper positioning piece, there is an arc-shaped groove support position 4212. Correspondingly, on the outer side of the lower positioning piece 422, there is a clamping protrusion 4221, on the inner side surface, there is a limiting block 4223, and at the end of the lower positioning piece, there is an arc-shaped groove support position 4222. The arc-shaped groove support positions of the upper positioning piece and the lower positioning piece can be adapted to the arc-shaped protrusion positions 3421 provided on both sides of the lower clip 342 of the second clip to achieve a movable connection. The arc-shaped protrusion positions 3421 can move along the arc-shaped groove support position 4222 in cooperation. The operating button manipulates the metal terminal elastic piece through the cooperation of the groove support position and the protrusion position. Under the action of an external force, the upper top of the operating button 4 drives the operating button to slide and pivot through the bar-shaped column bayonet sliding fulcrum of the housing, and the groove support force at the lower part of the operating button is combined with the protrusion position of the upper clip to perform a rotary pull-up and return, facilitating the insertion or extraction of the wire from the wire insertion hole to the terminal as needed. The limiting blocks 4213 of the upper positioning piece and the limiting blocks 4223 of the lower positioning piece are in corresponding positions and cooperate with each other to enhance the limiting and clamping effects on the inserted bare wire.

[0081] Inside the cavity of the housing 1, there is a second middle partition 17, which can be inserted into the "U"-shaped clip groove 37 between the first clip and the second clip, playing a good fixing role. The upper end of the second middle partition 17 is connected to the first middle partition 122, and the lower end is a free end.

[0082] The bottom plate 11 has an open structure that penetrates the cavity.

[0083] The upper end of the front baffle 13 of the housing is connected to the top plate 11, and the lower end is provided with a fixing device 131. The fixing device 131 includes an insertion plate 1311, a plurality of fixing pieces 1312, and a positioning concave position 1313. The two sides and the lower edge of the insertion plate 1311 are connected with a plurality of fixing pieces 1312. The number of fixing pieces is preferably 2 to 6. The positioning concave position 1313 is at the lower edge of the insertion plate 1311, and the notch direction is perpendicular to the fixing pieces.

[0084] The upper end of the rear baffle 14 of the housing is connected to the top plate 11, and the lower end is provided with a fixing device 141. The fixing device 141 includes an insertion plate 1411, a plurality of fixing pieces 1412, and a positioning concave position 1413. The two sides and the lower edge of the insertion plate 1311 are connected with a plurality of fixing pieces 1412. The number of fixing pieces is preferably 2 to 6. The positioning concave position 1413 is at the lower edge of the insertion plate, and the notch direction is perpendicular to the fixing pieces.

[0085] 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.

[0086] A positioning structure 211 capable of accommodating hardware terminals 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.

[0087] The positioning structure 21 in the middle of the cover body main body includes a plurality of mutually perpendicular positioning columns 211 forming a square or rectangular groove for limiting and fixing the hardware terminals. Specifically, the positioning columns 211 can be provided with three horizontal columns and four vertical columns, which are mutually perpendicular to form a square or rectangular groove.

[0088] 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 of the front baffle 13 and the fixing devices 141 of the rear baffle 14 of the housing. The front side surface 24 of the cover body is provided with a first limiting groove 241, and a card 2411 is provided on the first limiting groove 241. The size and shape of the card are adapted to the positioning concave position 1313 at the lower end of the front baffle 13 to play a fixing role. When the lower end fixing device of the housing front baffle 13 is inserted, the first limiting groove 241 is adapted to the fixing device 131. Among them, the insertion plate 1311 and the fixing piece 1312 can be inserted into the first limiting groove 241. At the same time, the card 2411 on the first limiting groove 241 is inserted into the positioning concave position 1313 at the lower end of the front baffle 13 to play a good fixing role. In addition, the inner side of the first limiting groove 241 is matched with the positioning column 211 of the positioning structure 21 to play 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, and a card 2511 is provided on the second limiting groove 251. The size and shape of the card are adapted to the positioning concave position 1413 at the lower end of the rear baffle 14. When the lower end fixing device of the housing rear baffle is inserted, the second limiting groove 251 is adapted to the fixing device. Among them, the insertion plate 1411 and several fixing pieces 1412 are inserted into the second limiting groove 251. At the same time, the card 2511 on the second limiting groove 251 is inserted into the positioning concave position 1413 at the lower end of the rear baffle to play a fixing role. In addition, the inner side of the second limiting groove 251 is matched with the positioning column 211 of the positioning structure 21 to play a better fixing and limiting role.

[0089] On the inner wall of the left side surface 22 of the cover body, there are several sunk platforms 221 with openings facing the middle cavity of the cover body. Their sizes, quantities, and shapes are adapted to the clamping blocks 1532 at the ends of the strip-shaped columns 153 on the left side plate of the housing. When the housing 1 is inserted into the cover body 2, the lower end of the left side plate of the housing is inserted into the gap formed between the left side surface of the cover body and the positioning column 211. The clamping block 1532 cooperates with the sunk platform 221 on the left side surface of the cover body to play a fixing role and prevent dislocation. Similarly, on the inner wall of the right side surface 23 of the cover body, there are several sunk platforms 231 with openings facing the middle cavity of the cover body. Their sizes, quantities, and shapes are adapted to the clamping blocks 1632 at the ends of the strip-shaped columns 163 on 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 gap formed between the right side surface of the cover body and the positioning column 211. The clamping block 1632 cooperates with the sunk platform 231 on the right side surface of the cover body to play a fixing role and prevent dislocation.

[0090] On the bottom surface 26 of the cover body, there are 2 test ports, which are communicated with the cavity of the housing and are electrically connected to the hardware terminals through the test ports.

[0091] During installation, the hardware terminal 3 is placed into the cavity of the housing. The clamping groove 37 with a "U" - shaped structure between the first clamping piece and the second clamping piece on the hardware terminal 3 is inserted into the second middle partition of the inner cavity of the housing, playing a good fixing role. When the housing is connected to the cover body, the lower ends of the left side plate and the right side plate of the housing are respectively connected to the upper ends of the left side surface and the right side surface of the cover body, and the lower ends of the front baffle and the rear baffle of the housing are respectively connected to the upper ends of the front side surface and the rear side surface of the cover body.

[0092] Obviously, the above - mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than 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 based on 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 within 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 a hardware terminal, the top surface of the shell is provided with a wire insertion hole connected to the cavity, and the corresponding two side surfaces of the shell are 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, a lower end of the bus and a connecting piece, the upper end of the bus and the lower end of the bus are connected by a connecting piece in the middle, and the upper end of the bus and the lower end of the bus each have a free end, the spring includes a first clip and a second clip, the first clip and the second clip are respectively provided with an upper clip and a lower clip, the upper clip of the first clip and the lower clip of the second clip have at least one protrusion, the operation button has at least one groove support position, and the protrusion is movably connected to the groove support position; The upper end of the busbar forms an angle with the upper clamp of the first clamp to support it, and the upper end of the busbar and the upper clamp of the first clamp form a clamping opening at a certain angle, and the elastic force of the spring sheet is used to form a clamping device with the busbar; the lower end of the busbar forms an angle with the lower clamp of the second clamp to support it, and the lower end of the busbar and the lower clamp of the second clamp form a clamping opening at a certain angle, and the elastic force of the spring sheet is used to form a clamping device with the busbar, and the position of the clamping opening corresponds to the wire plug-in hole, so as to clamp the exposed wire.

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 of the first clamping piece and the lower clamping piece of the second clamping piece are respectively provided with protrusions on both sides, and the free ends are provided with notches; 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 positions of the upper clamping piece of the first clamping piece and the lower clamping piece of the second clamping piece are 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 and the lower clamping piece of the first clamping piece and the upper clamping piece and the lower clamping piece of the second clamping piece are connected, and a "V"-shaped structure is formed between the upper clamping piece and the lower clamping piece, and the angle range is 20°-70° or 30°-60°.

5. A terminal block according to claim 1, characterized in that: The first clamping piece, the second clamping piece and the connecting piece of the hardware busbar form a clamping groove, and the clamping groove is similar to a "U"-shaped structure.

6. A terminal block according to claim 3, characterized in that: One end of the lower clip of the first clip is connected to the connecting piece of the hardware busbar; the lower clip is provided with a first bending portion and a second bending portion, the first bending portion is bent upward, and the second bending portion is bent downward, and the bending directions are opposite to form a wave shape; The upper clamp of the second clamp is connected to the hardware bus; the upper clamp of the second clamp is provided with a first bending portion and a second bending portion, the first bending portion is bent downward, and the second bending portion is bent upward, and the bending directions are opposite to form a wave shape.

7. A terminal block according to claim 6, characterized in that: The first bending portion has an angle of 90°-160°, and the second bending portion has an angle of 90°-160°.

8. A terminal block according to claim 1, characterized in that: The number of the first clips and the second clips is the same as the number of the wire insertion holes, and they are arranged in parallel on the upper end and the lower end of the busbar, and the position of each clip corresponds to the position of the wire insertion hole.

9. A terminal block according to claim 1, characterized in that: The free ends of the upper end and the lower end of the hardware bus are respectively provided with protrusions, which can be inserted into the clamping opening, and use the elastic force of the spring sheet and the bus to form a clamping device for clamping the exposed wire part.

10. A connection terminal according to claim 9, characterized in that: The number and position of the protrusions correspond to the number and position of the upper clip of the first clip and the lower clip of the second clip, respectively, and the protrusions of the hardware terminal can just extend into the clamping openings formed by the hardware terminal and the free end of the upper clip of the first clip or the free end of the lower clip of the second clip, respectively, and the free end of the upper clip of the first clip and the free end of the lower clip of the second clip are respectively between the protrusion plane to clamp the exposed wire part.

11. A terminal block according to claim 1, 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 top plate is provided with a first middle partition plate, and the wire insertion hole and the first middle partition plate can extend toward the cavity; The inner cavity of the shell is provided with a second middle partition plate, which can be inserted into the "U"-shaped clamping groove between the first clamping piece and the second clamping piece provided on the hardware terminal. The upper end of the second middle partition plate is connected to the first middle partition plate, and the lower end is a free end.

12. A connection terminal according to claim 11, characterized in that: The lower ends of the front baffle plate and the rear baffle plate of the housing are provided with fixing devices; The fixing device comprises a plug board, a plurality of fixing pieces and a positioning recess; a plurality of fixing pieces are arranged on both sides and the lower edge of the plug board, the positioning recess is at the lower edge of the plug board, and the recess direction is perpendicular to the fixing piece.

13. A connection terminal according to claim 11, characterized in that: 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. The free end is provided with a plurality of bayonet holes 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 left side plate. The upper positioning piece and the lower positioning piece of the lower stopper are inserted into the cavity through two adjacent bayonet holes. A strip column is clamped between the upper positioning piece and the lower positioning piece. The upper end of the right side plate of the shell is connected to the top plate, and the lower end is a free end. The free end is provided with a plurality of bayonet holes and strip columns. 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.

14. A connection terminal according to claim 13, 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 such that the operation button can be inserted therein; the strip column is arranged between two adjacent bayonet holes to avoid mutual functional interference between adjacent clips.

15. A connection terminal according to claim 14, 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.

16. A connection terminal according to claim 15, characterized in that: The fixing structure of the free end of the strip column includes a first clamping block, a second clamping block and a stepped recess. The first clamping block and the second clamping block are located on the outer side wall of the end portion, and the stepped recess is arranged on the inner side wall of the end portion, facing the inner cavity of the shell, so as to facilitate the insertion of the hardware terminal.

17. The 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.

18. A connection terminal according to claim 17, characterized in that: A positioning structure capable of accommodating hardware terminals is provided in the middle of the cover body. The positioning structure includes a plurality of mutually perpendicular positioning columns forming a square or rectangular groove, which is used to limit the hardware terminals of the shell when the cover body is installed and connected.

19. A connection terminal according to claim 17, characterized in that: The heights of the front side and rear side of the cover body are matched with the heights of the fixing devices of the front baffle and the rear baffle of the shell; the front side of the cover body is provided with a first limiting groove, and a card is provided on the first limiting groove, and the size and shape of the card are matched with the positioning recess at the lower end of the front baffle of the shell; A second limiting groove is provided on the rear side of the shell cover, and a card is provided on the second limiting groove. The size and shape of the card are matched with the positioning recess at the lower end of the rear baffle.

20. The connection terminal according to claim 17, characterized in that: The inner wall of the left or 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 and shape of the sinks are adapted to the blocks at the ends of the strip columns of the left or right plate of the shell body, and play a fixing role when the shell body is inserted into the cover body to prevent dislocation.

21. A terminal block according to any one of claims 1 to 20, characterized in that: The bottom surface of the cover body is provided with at least one test port.

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