Rail-mounted terminal block

Abstract

The invention relates to a rail-mounted terminal block, which comprises an insulating base, two first jacks, two first mounting holes, two second jacks and two second mounting holes, wherein the middle part of the front surface of the insulating base is provided with an accommodating cavity and one side of the upper end surface of the insulating base is provided with two first jacks; the other side of the upper end surface is provided with two second mounting holes in parallel; the upper part of one side surface of the insulating base is provided with a second jack; the first conductive terminal and the second conductive terminal are U-shaped, and each conductive terminal comprises a substrate, a top plate and a bottom plate; the first conductive terminal and the second conductive terminal are arranged back to back, and a conductive connecting plate is arranged between the first conductive terminal substrate and the second conductive terminal substrate; each first elastic pressing piece comprises a fixing part, an elastic part and a first contact part; the two pressing buckles are respectively inserted into the accommodating cavity from the first mounting holes of the insulating base; the two second elastic pressing sheets are L-shaped, and each second elastic pressing sheet comprises a base part, a bending part, an elastic arm, a second contact part and an abutting part; the second contact part corresponds to the second jack; the two rotating arm rods are respectively pivoted in the two second mounting holes of the insulating base, and one end of each rotating arm rod extends into the accommodating cavity to abut against the abutting part of the second elastic pressing sheet; and the cover plate is buckled and fixed on the front surface of the insulating base.

Description

Technical Field

[0001] The invention relates to a rail-mounted terminal block. Background Art

[0002] Terminal blocks, such as grounding terminal blocks, are generally used for integrated grounding wiring and wiring relays and wiring branches from grounding wiring of various devices, and can be snapped into the grounding rail with a single touch.

[0003] The current structure of the grounding terminal block has too many assembled parts, which is not conducive to production and assembly; moreover, the grounding terminal board is connected by two conductive plates through spot welding, which reduces the connection stability of the conductive plate area. The operation process also requires the intervention of a second-party process, which increases assembly uncertainty and increases the probability of defective hidden dangers; in addition, the current structure of the grounding terminal block has too little connection area between the wire and the conductive plate and the spring-pressed plate, which will lead to excessive temperature rise and excessive contact resistance, and thus there is a risk of burning the machine.

[0004] As disclosed in Chinese patent CN202010511547, “wire connection clamp, classification piece and wire connection clamp block”, the wire connection clamp has a basic module, and the basic module has a supporting rail fixing element for fixing the wire connection clamp on a supporting rail, wherein the basic module has a shell, and the shell extends along its longitudinal direction to two end areas of the shell, wherein the shell has a central area between the end areas, and the central area extends beyond the end areas of the shell in a direction forward from the supporting rail fixing element, wherein in each end area of ​​the two end areas, at least one accommodating device for accommodating a wire connection module is arranged on the basic module, wherein the wire connection module has at least one wire clamping terminal configured for clamping an electrical wire.

[0005] In this case, the basic module can have its own wire clamping terminal, for example, a clamping spring fixed to a central busbar piece, by which two adjacent wire clamping locations are formed together with the central busbar piece. The housing can then have corresponding wire lead-in openings, through which the electrical wires can be guided to the wire clamping locations on the clamping springs. Pin contacts or plug-in tongues of a transverse connector can also be introduced into the wire lead-in openings, which electrically connect two or more adjacent basic modules to one another. Summary of the invention

[0006] The object of the present invention is to provide a rail-mounted terminal block to solve the deficiencies of the prior art. The components are assembled using a snap-fit ​​or snap-fit ​​design to facilitate assembly; moreover, wiring is simpler and safer.

[0007] To achieve the above object, the technical solution of the present invention is:

[0008] A rail-mounted terminal block, comprising:

[0009] An insulating base, the middle part of the front side of which is concave to form an open accommodating chamber, two first plug holes for inserting wires into the accommodating chamber and two first mounting holes adjacent to the first plug holes are arranged in parallel on one side of the upper end surface of the insulating base; two second mounting holes are arranged in parallel on the other side of the upper end surface of the insulating base, and a second plug hole for inserting wires into the accommodating chamber is arranged on the upper part of one side surface of the insulating base corresponding to the second mounting holes; a first guide column is protrudingly arranged on one side of the inner wall of the accommodating chamber near the first mounting hole, and a second guide column is protrudingly arranged on the lower part of the other side of the inner wall, i.e. below the second mounting hole; a first positioning column and a second positioning column are arranged in the middle part of the inner wall of the accommodating chamber, and the first positioning column and the second positioning column are arranged in the middle part of the inner wall of the accommodating chamber, and the first positioning column and the second positioning column are respectively located on both sides below the first guide column;

[0010] A first conductive terminal and a second conductive terminal, wherein the conductive terminal is a U-shaped structure, wherein the first conductive terminal comprises a substrate and a top plate and a bottom plate at the upper and lower ends thereof; a fixing through hole matching the first positioning column and the second positioning column is provided in the middle of the substrate, so as to penetrate the first positioning column and the second positioning column, and the first and second conductive terminals are arranged back to back, a conductive connecting plate is provided between the substrates of the first and second conductive terminals, and is respectively connected and fixed to the two side surfaces of the conductive connecting plate; a stopper is convexly provided near the fixing through hole in the middle of the substrate; a notch is provided on one side of the top plate of the first and second conductive terminals near the first plug hole; a through hole is provided in the middle of the conductive connecting plate for the first positioning column and the second positioning column to pass through;

[0011] Two first elastic sheets are respectively arranged on one side of the first conductive terminal and the second conductive terminal. The first elastic sheet is L-shaped and includes a vertically arranged fixing portion, an elastic portion extending and bending from the upper end of the fixing portion, and a first contact portion extending from the elastic portion; the fixing portion abuts against a stopper in the middle of the substrate; the elastic portion bypasses the first guide column and extends from the notch of the top plate of the first and second conductive terminals; the first contact portion is located below the first plug hole;

[0012] Two buckles, the lower ends of which are respectively inserted into the accommodating chamber from the two first mounting holes of the insulating base and respectively abut against the first contact portion of the first elastic pressure sheet;

[0013] Two second elastic sheets are respectively arranged on the other side of the first conductive terminal and the second conductive terminal, the second elastic sheet is L-shaped, including a base, a C-shaped bending portion extending upward from one end of the base, an elastic arm extending upward from one end of the bending portion, a second contact portion extending from the upper end of the elastic arm, and abutting portion extending from one side of the upper end of the second contact portion; the base is fixed to the bottom plate of the first conductive terminal; the bending portion bypasses the second guide column; the other side of the upper end of the second contact portion abuts against the top plate of the first conductive terminal; the second contact portion corresponds to the second plug hole;

[0014] Two swing arm rods are respectively pivotally connected to the two second mounting holes of the insulating base, one end of the swing arm rod extends into the accommodating chamber of the insulating base and respectively abuts against the abutting portion of the second elastic pressure sheet;

[0015] The cover plate is buckled and fixed on the front side of the insulating base.

[0016] The present invention also provides a rail-mounted terminal block, which comprises:

[0017] An insulating base, the middle part of the front side of which is concave to form an open accommodating chamber, one side of the upper end surface of the insulating base is provided with four first plugging holes for inserting wires into the accommodating chamber in pairs, and four first mounting holes adjacent to the first plugging holes; the other side of the upper end surface of the insulating base is provided with two second mounting holes in parallel, and the upper part of one side surface of the insulating base corresponding to the second mounting holes is provided with two second plugging holes for inserting wires into the accommodating chamber; two first guide pillars are protrudingly provided at one side of the inner wall of the accommodating chamber corresponding to the two rows of first mounting holes, and a second guide pillar is protrudingly provided at the lower part of the other side of the inner wall, that is, below the second mounting holes; a first positioning pillar and a second positioning pillar are provided in the middle part of the inner wall of the accommodating chamber, wherein a first positioning pillar is provided below the first guide pillar on one side, and a first positioning pillar and a second positioning pillar are provided on both sides below the first guide pillar on the other side;

[0018] The first conductive terminal and the second conductive terminal are U-shaped structures. The first conductive terminal includes a substrate and a top plate and a bottom plate at the upper and lower ends thereof. The substrate is provided with a fixed through hole and a fixed through hole matching the first positioning column and the second positioning column in the middle part, so as to penetrate the first positioning column and the second positioning column, and the first and second conductive terminals are arranged back to back. A conductive connecting plate is provided between the substrates of the first and second conductive terminals, and is respectively connected and fixed to the two sides of the conductive connecting plate. A stopper is provided protrudingly at the fixed through hole near one side of the middle part of the substrate. A notch is provided on the top plate of the first and second conductive terminals near the first plug hole. A through hole is provided in the middle part of the conductive connecting plate for the first positioning column and the second positioning column to pass through.

[0019] Four first elastic sheets, two by two, respectively arranged on one side of the first conductive terminal and the second conductive terminal, the first elastic sheet is L-shaped, and includes a vertically arranged fixed portion, an elastic portion extending and bending from the upper end of the fixed portion, and a first contact portion extending from the elastic portion; the fixed portion abuts against a stopper in the middle of the substrate; the elastic portion bypasses the first guide column and extends from the notch of the top plate of the first conductive terminal; the first contact portion is located below the first plug hole;

[0020] Four buckles, the lower ends of which are respectively inserted into the accommodating chamber from the four first mounting holes of the insulating base and abut against the first contact portion of the first elastic pressure sheet;

[0021] The two second elastic pressing pieces are L-shaped, including a base, a C-shaped bending portion extending upward from one end of the base, an elastic arm extending upward from one end of the bending portion, a second contact portion extending from the upper end of the elastic arm, and a supporting portion extending from one side of the upper end of the second contact portion; the base is fixed to the bottom plate of the first conductive terminal; the bending portion bypasses the second guide column; the other side of the upper end of the second contact portion is against the top plate of the first conductive terminal; the second contact portion corresponds to the second plug hole;

[0022] Two swing arm rods are respectively pivotally connected to the two second mounting holes of the insulating base, one end of the swing arm rod extends into the accommodating chamber of the insulating base and abuts against the abutting portion of the second elastic pressure sheet;

[0023] The cover plate is buckled and fixed on the front side of the insulating base.

[0024] Preferably, a limiting piece is protrudingly provided near the fixed through hole in the middle of the substrate of the first and second conductive terminals, and the outer end of the limiting piece is bent inward to form a hook; a connecting through hole is provided in the middle of the conductive connecting plate, and a connecting locking plate passes through the connecting through hole in the middle of the conductive connecting plate and is inserted between the hooks of the limiting pieces of the first and second conductive terminal substrates to lock the first and second conductive terminals and the conductive connecting plate to each other.

[0025] Preferably, both sides of the upper end surface of the substrate of the first and second conductive terminals corresponding to the notch are respectively provided with limiting portions bent inwardly; and the fixing portion of the first elastic pressure sheet is provided with a limiting groove matching the limiting portion.

[0026] Preferably, the substrates of the first and second conductive terminals are connected to the conductive connecting plate by riveting or mortise and tenon connection; more preferably, a plurality of rivets or tenons are protruding from the conductive connecting plate, and correspondingly, riveted through holes or mortises are provided on the substrates of the first and second conductive terminals.

[0027] Preferably, a limiting block is protruded from the lower part of the substrate of the first and second conductive terminals relative to the second elastic sheet, and correspondingly, a limiting groove matching the limiting block is provided at the base of the second elastic sheet, so that the base is limited to the substrate.

[0028] Preferably, the swing arm rod includes a fixed portion, and a pressing portion and a leaning portion extending from both ends of the fixed portion respectively; the swing arm rod fixed portion is pivotally connected to the second mounting hole of the insulating base, and the leaning portion corresponds to the abutting portion of the second elastic pressure sheet.

[0029] Preferably, short shafts are protrudingly provided on both sides of the fixing portion of the swing arm rod, and correspondingly, guide grooves for embedding the short shafts are provided on both side walls of the second mounting hole of the insulating base.

[0030] Preferably, the end faces of the first guide column, the second guide column and / or the first positioning column, the second positioning column are respectively provided with blind holes, and correspondingly, a first fixing column matching the blind holes is convexly provided on the inner side surface of the cover plate.

[0031] Preferably, a U-shaped limit plate is provided in the middle of the inner side surface of the cover plate, and the U-shaped limit plate abuts against the first conductive terminal bottom plate; preferably, a baffle is vertically provided in the middle of the inner side surface of the cover plate, and the baffle can abut against one side of the two second positioning columns; more preferably, second fixing columns are provided on both sides of the inner side surface of the cover plate, and correspondingly, fixing holes matching with the second fixing columns are provided on both sides of the front side of the insulating base.

[0032] Preferably, a side plate is provided on a side of the first conductive terminal close to the first elastic sheet, and a front end of the first contact portion of the first elastic sheet abuts against an inner wall of the side plate.

[0033] Beneficial effects of the present invention:

[0034] The existing connector has a two-input and multiple-output structure, and the adjacent poles or cross-pole conductive connections are connected using dedicated conductive connecting pieces. This structure is complex, requires special parts, and has high manufacturing and use costs.

[0035] The invention designs the conduction of the cross-pole by connecting the cross-pole line to the first or second plug hole, which is more convenient than the traditional method of internally arranging the cross-pole member.

[0036] The connection design between the conductive terminal, the cover plate, the insulating base and the ground terminal board of the present invention is designed by pressing the middle snap-on design, eliminating the traditional flange fixing or snap-on fixing device on both sides, and innovatively providing a more stable and reliable snap-on connection without increasing the side space. Clear feedback After any snap-on connection is in place, there will be a clear click and position change, which is convenient for clarifying the connection status.

[0037] The first jack of the present invention, i.e., the client plug-in, is designed as a vertical plug-in, which is more convenient and has a more stable connection than the prior art which mostly adopts an oblique plug-in.

[0038] The design of the elastic arm of the conductive terminal of the present invention makes the connection with the wire more stable and reliable, especially the superposition of the self-locking function, so that the connection can be continuously and stably even under vibration conditions.

[0039] The swing arm rod of the present invention adopts a unique lever technology. By opening the swing arm rod, the connection and release of multi-core soft rubber wires without pre-cooling joints can be directly completed; and, guide grooves for embedding the short axis of the swing arm rod are provided on both side walls of the second mounting hole of the insulating base, which is more stable than the existing technology.

[0040] The grounding terminal board of the present invention is directly connected to the first conductive terminal, which makes connection and grounding more convenient and installation with the insulating base more convenient; and preferably, the grounding terminal board and the first conductive terminal are designed as an integrated whole, which makes production and installation more convenient and the connection more stable.

[0041] The top surface of the insulating base of the present invention is designed with a wire observation hole, which can effectively check whether the installation is in place and complete. The product inspection hole accelerates the self-inspection function of the production line machine and greatly saves the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a stereogram of embodiment 1 of the present invention;

[0043] Figure 2 The three-dimensional decomposition of Example 1 of the present invention Figure 1 ;

[0044] Figure 3 The three-dimensional decomposition of Example 1 of the present invention Figure 2 ;

[0045] Figure 4 It is a front view of Embodiment 1 of the present invention (without the cover plate);

[0046] Figure 5 is a three-dimensional diagram of the insulating base in Example 1 of the present invention;

[0047] Figure 6 It is a three-dimensional exploded view of the first and second conductive terminals and the ground terminal plate in Embodiment 1 of the present invention;

[0048] Figure 7 is a stereogram of embodiment 2 of the present invention;

[0049] Figure 8 The three-dimensional decomposition of Example 2 of the present invention Figure 1 ;

[0050] Fig. 9 The three-dimensional decomposition of Example 2 of the present invention Figure 2 ;

[0051] Fig.10 It is a front view of Embodiment 2 of the present invention (without the cover plate);

[0052] Fig.11 is a three-dimensional diagram of an insulating base in Example 2 of the present invention;

[0053] Fig.12 It is a three-dimensional exploded view of the first and second conductive terminals and the ground terminal plate in embodiment 2 of the present invention. DETAILED DESCRIPTION

[0054] See also Figure 1 to Figure 6 The rail-mounted terminal block of the present invention comprises:

[0055] The insulating base 1 has a concave middle portion on the front side to form an open accommodating chamber 100. Two first plug holes 101 for inserting wires into the accommodating chamber 100 and two first mounting holes 102 adjacent to the first plug holes 101 are arranged in parallel on one side of the upper end surface of the insulating base 1; two second mounting holes 103 are arranged in parallel on the other side of the upper end surface of the insulating base 1, and two second plug holes 104 for inserting wires into the accommodating chamber 100 are arranged on the upper portion of one side surface of the insulating base 1 corresponding to the two second mounting holes 103; a first guide column 11 is protrudingly provided on one side of the inner wall of the accommodating chamber 100 near the first mounting hole 102, and a second guide column 12 is protrudingly provided on the lower portion of the other side of the side wall, i.e., below the second mounting hole 103; a first positioning column 13 and a second positioning column 13' are arranged in the middle of the inner wall of the accommodating chamber 100, and the first positioning column 13 and the second positioning column 13' are respectively located on both sides below the first guide column 11;

[0056] The first conductive terminal 2 and the second conductive terminal 3 are U-shaped structures. The first conductive terminal 2 includes a substrate 21 (taking the first conductive terminal 2 as an example, the same below) and a top plate 22 and a bottom plate 23 at its upper and lower ends; a fixing through hole 211 and a fixing through hole 211' matching the first positioning column 13 and the second positioning column 13' are provided in the middle of the substrate 21, so as to penetrate the first positioning column 13 and the second positioning column 13', and the first and second conductive terminals 2 and 3 are arranged back to back, and a conductive connecting plate 9 is provided between the substrates of the first and second conductive terminals 2 and 3, and is respectively connected and fixed to the two side surfaces of the conductive connecting plate 9; a stopper 212 is convexly provided near the fixing through hole 211' in the middle of the substrate 21; a notch 221 is provided on the top plate 22 of the first and second conductive terminals 2 and 3 near the first plug hole 101; a through hole 91 is provided in the middle of the conductive connecting plate 9 for the first positioning column 13 and the second positioning column 13' to pass through;

[0057] Two first spring-pressing pieces 4, 4' are respectively arranged at one side of the first conductive terminal 2 and the second conductive terminal 3, and the first spring-pressing pieces 4, 4' are L-shaped. The first spring-pressing piece 4 (taking the first spring-pressing piece 4 as an example, the same below) includes a vertically arranged fixing portion 41, an elastic portion 42 extending and bent from the upper end of the fixing portion 41, and a first contact portion 43 extending from the elastic portion 42; the fixing portion 41 abuts against the stopper 212 in the middle of the substrate 21; the elastic portion 42 bypasses the first guide column 11 and extends from the notch 221 of the top plate 22 of the first and second conductive terminals 2, 3; the first contact portion 43 is located below the first plug hole 101;

[0058] Two buckles 5, 5', the lower ends of the buckles 5 (taking buckle 5 as an example, the same below) are respectively inserted into the accommodating chamber 100 from the two first mounting holes 102 of the insulating base 1, and respectively abut against the first contact portions 43 of the first elastic plates 4, 4';

[0059] The two second elastic sheets 6, 6' are respectively arranged at the other side of the first conductive terminal 2 and the second conductive terminal 3. The second elastic sheet 6 (taking the second elastic sheet 6 as an example, the same below) is L-shaped, including a base 61, a C-shaped bending portion 62 extending upward from one end of the base 61, an elastic arm 63 extending upward from one end of the bending portion 62, a second contact portion 64 extending from the upper end of the elastic arm 63, and abutting portion 65 extending from one side of the upper end of the second contact portion 64; the base 51 is fixed on the bottom plate 23 of the first conductive terminal 2; the bending portion 62 bypasses the second guide column 12; the other side of the upper end of the second contact portion 64 abuts against the top plate 22 of the first conductive terminal 2; the second contact portion 64 corresponds to the second plug hole 104;

[0060] The two swing arms 7, 7' are respectively pivotally connected to the two second mounting holes 103 of the insulating base 1, and one end of the swing arm 7 extends into the accommodating chamber 100 of the insulating base 1 and respectively abuts against the abutting portion 65 of the second elastic sheet 6;

[0061] The cover plate 8 is fastened and fixed on the front side of the insulating base 1 .

[0062] Preferably, the substrates of the first and second conductive terminals 2 and 3 are connected to the conductive connecting plate 9 by riveting or mortise and tenon connection; more preferably, a plurality of rivets or tenons 92 are protruding from the conductive connecting plate 9, and correspondingly, riveted through holes 213 or mortises are provided on the substrate 21 of the first and second conductive terminals 2 and 3.

[0063] Preferably, a limit block 214 is protruded from the lower part of the substrate 21 of the first and second conductive terminals 2 and 3 relative to the second spring-pressing sheet 6, and correspondingly, the base 61 of the second spring-pressing sheet 6 is provided with a limit groove 611 matching the limit block 214, and the base 61 is limited to the substrate 21 thereby.

[0064] Preferably, the swing arm rod 7 (taking the swing arm rod 7 as an example, the same) includes a fixed portion 71, and a pressing portion 72 and a pressing portion 73 extending from both ends of the fixed portion 71; the fixed portion 71 of the swing arm rod 7 is pivotally connected to the second mounting hole 103 of the insulating base 1, and the pressing portion 73 corresponds to the abutting portion 65 of the second elastic sheet 6.

[0065] Preferably, short shafts 74 are protruded on both sides of the fixing portion 71 of the swing arm 7, and correspondingly, guide grooves 1031 for embedding the short shafts 74 are provided on both side walls of the second mounting hole 103 of the insulating base 1.

[0066] Preferably, the end faces of the first guide column 11, the second guide column 12 and / or the first positioning column 13, the second positioning column 13' are respectively provided with blind holes, and correspondingly, the inner side surface of the cover plate 8 is convexly provided with a first fixing column 81 matching the blind holes.

[0067] Preferably, a U-shaped limiting plate 82 is provided in the middle of the inner side of the cover plate 8, and the U-shaped limiting plate 82 abuts against the bottom plate 23 of the first conductive terminal 2; preferably, a baffle 83 is vertically provided in the middle of the inner side of the cover plate 8, and the baffle can abut against one side of the two second positioning columns 13'.

[0068] Preferably, second fixing columns 83 are disposed on both sides of the inner side surface of the cover plate 8 , and correspondingly, fixing holes 105 cooperating with the second fixing columns 83 are disposed on both sides of the front surface of the insulating base 1 .

[0069] Preferably, a side plate 24 is provided on a side of the first conductive terminal 2 close to the first elastic sheet 4 , and a front end of the first contact portion 43 of the first elastic sheet 4 abuts against an inner wall of the side plate 24 .

[0070] See also Figure 7 to Figure 12 The rail-mounted terminal block of the present invention comprises:

[0071] The insulating base 1 has a concave middle portion on the front side to form an open accommodating chamber 100. Four first plug holes 101 for inserting wires into the accommodating chamber 100 and four first mounting holes 102 adjacent to the first plug holes 101 are arranged in parallel on one side of the upper end surface of the insulating base 1; two second mounting holes 103 are arranged in parallel on the other side of the upper end surface of the insulating base 1, and two second plug holes for inserting wires into the accommodating chamber 100 are arranged on the upper side of one side of the insulating base 1 corresponding to the second mounting holes 103. 104; two first guide pillars 11 are protrudingly provided at one side of the inner wall of the accommodating chamber 100 corresponding to the two rows of first mounting holes 102, and a second guide pillar 12 is protrudingly provided at the lower part of the other side of the inner wall, that is, below the second mounting holes 103; a first positioning pillar 13 and a second positioning pillar 13' are provided at the middle part of the inner wall of the accommodating chamber 100, wherein the first positioning pillar 13 is provided below the first guide pillar 11 on one side, and the first positioning pillar 13 and the second positioning pillar 13' are provided on both sides below the other first guide pillar 11;

[0072] The first conductive terminal 2 and the second conductive terminal 3 are U-shaped structures. The first conductive terminal 2 (taking the first conductive terminal 2 as an example, the same below) includes a substrate 21 and a top plate 22 and a bottom plate 23 at its upper and lower ends; a fixing through hole 211 and a fixing through hole 211' matching the first positioning column 13 and the second positioning column 13' are provided in the middle of the substrate 21, so as to penetrate the first positioning column 13 and the second positioning column 13', and the first and second conductive terminals 2 and 3 are arranged back to back, and a conductive connecting plate 9 is provided between the substrates of the first and second conductive terminals 2 and 3, and is respectively connected and fixed to the two side surfaces of the conductive connecting plate 9; a stopper 212 is protruded near the fixing through hole 211 on one side of the middle of the substrate 21; a notch 221 is provided on the top plate 22 of the first and second conductive terminals 2 and 3 near the first plug hole 101; a through hole 91 is provided in the middle of the conductive connecting plate 9 for the first positioning column 13 and the second positioning column 13' to pass through;

[0073] Four first elastic sheets 4, 4', two by two, are respectively arranged at one side of the first conductive terminal 2 and the second conductive terminal 3, the first elastic sheet 4 (taking the first elastic sheet 4 as an example, the same below) is L-shaped, and includes a vertically arranged fixed portion 41, an elastic portion 42 extending and bent from the upper end of the fixed portion 41, and a first contact portion 43 extending from the elastic portion 42; the fixed portion 41 abuts against the stopper 212 in the middle of the substrate 21; the elastic portion 42 bypasses the first guide column 11 and extends from the notch 221 of the top plate 22 of the first conductive terminal 2; the first contact portion 43 is located below the first plug hole 101;

[0074] The lower ends of the four buckles 5 and 5' are respectively inserted into the accommodating chamber 100 from the four first mounting holes 102 of the insulating base 1 and abut against the first contact portion 43 of the first elastic sheet 4;

[0075] The two second elastic sheets 6, 6' are L-shaped, including a base 61, a C-shaped bent portion 62 extending upward from one end of the base 61, an elastic arm 63 extending upward from one end of the bent portion 62, a second contact portion 64 extending from the upper end of the elastic arm 63, and a supporting portion 65 extending from one side of the upper end of the second contact portion 64; the base 51 is fixed on the bottom plate 23 of the first conductive terminal 2; the bent portion 62 bypasses the second guide column 12; the other side of the upper end of the second contact portion 64 is against the top plate 22 of the first conductive terminal 2; the second contact portion 64 corresponds to the second plug hole 104;

[0076] The two swing arms 7, 7' are respectively pivotally connected to the two second mounting holes 103 of the insulating base 1, and one end of the swing arm 7 extends into the accommodating chamber 100 of the insulating base 1 and abuts against the abutting portion 65 of the second elastic sheet 6;

[0077] The cover plate 8 is fastened and fixed on the front side of the insulating base 1 .

[0078] Preferably, a limiting member 212 is protruded near the fixed through hole 211' in the middle of the substrate of the first and second conductive terminals 2 and 3, and the outer end of the limiting member 212 is bent inward to form a hook portion 2121; a connecting through hole 93 is provided in the middle of the conductive connecting plate 9, and a connecting locking plate 94 passes through the connecting through hole 93 in the middle of the conductive connecting plate 9 and is inserted between the hook portion 2121 of the limiting member 212 of the substrate of the first and second conductive terminals 2 and 3, so as to lock the first and second conductive terminals 2 and 3 and the conductive connecting plate 9 with each other.

[0079] Preferably, both sides of the upper end surface of the substrate 21 of the first and second conductive terminals 2 and 3 corresponding to the notch 221 are respectively provided with limiting portions 215 bent inwardly; the fixing portion 41 of the first elastic pressure sheet 4 is provided with a limiting groove 411 matching the limiting portion 215.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the invention may be modified or replaced by equivalents without departing from the scope of the technical solutions of the present invention, which should all be covered by the scope of the claims of the present invention.

Claims

1. A rail-mounted terminal block, characterized in that: include, An insulating base, the middle part of the front side of which is concave to form an open accommodating chamber, two first plug holes for inserting wires into the accommodating chamber and two first mounting holes adjacent to the first plug holes are arranged in parallel on one side of the upper end surface of the insulating base; two second mounting holes are arranged in parallel on the other side of the upper end surface of the insulating base, and two second plug holes for inserting wires into the accommodating chamber are arranged on the upper part of one side surface of the insulating base corresponding to the two second mounting holes; a first guide column is protrudingly arranged on one side of the inner wall of the accommodating chamber near the first mounting hole, and a second guide column is protrudingly arranged on the lower part of the other side of the inner wall, i.e., below the second mounting hole; a first positioning column and a second positioning column are arranged in the middle part of the inner wall of the accommodating chamber, and the first positioning column and the second positioning column are respectively located on both sides below the first guide column; A first conductive terminal and a second conductive terminal, wherein the conductive terminal is a U-shaped structure, wherein the first conductive terminal comprises a substrate and a top plate and a bottom plate at the upper and lower ends thereof; a fixing through hole matching the first positioning column and the second positioning column is provided in the middle of the substrate, so as to penetrate the first positioning column and the second positioning column, and the first and second conductive terminals are arranged back to back, a conductive connecting plate is provided between the substrates of the first and second conductive terminals, and is respectively connected and fixed to the two side surfaces of the conductive connecting plate; a stopper is convexly provided near the fixing through hole in the middle of the substrate; a notch is provided on one side of the top plate of the first and second conductive terminals near the first plug hole; a through hole is provided in the middle of the conductive connecting plate for the first positioning column and the second positioning column to pass through; Two first elastic sheets are respectively arranged on one side of the first conductive terminal and the second conductive terminal. The first elastic sheet is L-shaped and includes a vertically arranged fixing portion, an elastic portion extending and bending from the upper end of the fixing portion, and a first contact portion extending from the elastic portion; the fixing portion abuts against a stopper in the middle of the substrate; the elastic portion bypasses the first guide column and extends from the notch of the top plate of the first and second conductive terminals; the first contact portion is located below the first plug hole; Two buckles, the lower ends of which are respectively inserted into the accommodating chamber from the two first mounting holes of the insulating base and respectively abut against the first contact portion of the first elastic pressure sheet; Two second elastic sheets are respectively arranged on the other side of the first conductive terminal and the second conductive terminal, the second elastic sheet is L-shaped, including a base, a C-shaped bending portion extending upward from one end of the base, an elastic arm extending upward from one end of the bending portion, a second contact portion extending from the upper end of the elastic arm, and abutting portion extending from one side of the upper end of the second contact portion; the base is fixed to the bottom plate of the first conductive terminal; the bending portion bypasses the second guide column; the other side of the upper end of the second contact portion abuts against the top plate of the first conductive terminal; The second contact portion corresponds to the second plug hole; Two swing arm rods are respectively pivotally connected to the two second mounting holes of the insulating base, one end of the swing arm rod extends into the accommodating chamber of the insulating base and respectively abuts against the abutting portion of the second elastic pressure sheet; The cover plate is buckled and fixed on the front side of the insulating base.

2. A rail-mounted terminal block, characterized in that: include, An insulating base, the middle part of the front side of which is concave to form an open accommodating chamber, one side of the upper end surface of the insulating base is provided with four first plugging holes for inserting wires into the accommodating chamber in pairs and four first mounting holes adjacent to the first plugging holes; the other side of the upper end surface of the insulating base is provided with two second mounting holes in parallel, and the upper part of one side surface of the insulating base corresponding to the second mounting holes is provided with two second plugging holes for inserting wires into the accommodating chamber; two first guide pillars are protrudingly provided at one side of the inner wall of the accommodating chamber corresponding to the two rows of first mounting holes, and a second guide pillar is protrudingly provided at the lower part of the other side of the side wall, that is, below the second mounting holes; a first positioning pillar and a second positioning pillar are provided in the middle part of the inner wall of the accommodating chamber, wherein a first positioning pillar is provided below the first guide pillar on one side, and a first positioning pillar and a second positioning pillar are provided on both sides below the first guide pillar on the other side; The first conductive terminal and the second conductive terminal are U-shaped structures. The first conductive terminal includes a substrate and a top plate and a bottom plate at the upper and lower ends thereof. The substrate is provided with a fixed through hole and a fixed through hole matching the first positioning column and the second positioning column in the middle part, so as to penetrate the first positioning column and the second positioning column, and the first and second conductive terminals are arranged back to back. A conductive connecting plate is provided between the substrates of the first and second conductive terminals, and is respectively connected and fixed to the two sides of the conductive connecting plate. A stopper is provided protrudingly at the fixed through hole near one side of the middle part of the substrate. A notch is provided on the top plate of the first and second conductive terminals near the first plug hole. A through hole is provided in the middle part of the conductive connecting plate for the first positioning column and the second positioning column to pass through. Four first elastic sheets, two by two, respectively arranged on one side of the first conductive terminal and the second conductive terminal, the first elastic sheet is L-shaped, and includes a vertically arranged fixed portion, an elastic portion extending and bending from the upper end of the fixed portion, and a first contact portion extending from the elastic portion; the fixed portion abuts against a stopper in the middle of the substrate; the elastic portion bypasses the first guide column and extends from the notch of the top plate of the first conductive terminal; the first contact portion is located below the first plug hole; Four buckles, the lower ends of which are respectively inserted into the accommodating chamber from the four first mounting holes of the insulating base and abut against the first contact portion of the first elastic pressure sheet; The two second elastic pressing pieces are L-shaped, including a base, a C-shaped bending portion extending upward from one end of the base, an elastic arm extending upward from one end of the bending portion, a second contact portion extending from the upper end of the elastic arm, and a supporting portion extending from one side of the upper end of the second contact portion; the base is fixed to the bottom plate of the first conductive terminal; the bending portion bypasses the second guide column; the other side of the upper end of the second contact portion is against the top plate of the first conductive terminal; the second contact portion corresponds to the second plug hole; Two swing arm rods are respectively pivotally connected to the two second mounting holes of the insulating base, one end of the swing arm rod extends into the accommodating chamber of the insulating base and abuts against the abutting portion of the second elastic pressure sheet; The cover plate is buckled and fixed on the front side of the insulating base.

3. The rail-mounted terminal block according to claim 2, characterized in that: A limiting piece is protruded near the fixed through hole in the middle of the substrate of the first and second conductive terminals, and the outer end of the limiting piece is bent inward to form a hook; a connecting through hole is provided in the middle of the conductive connecting plate, and a connecting locking plate passes through the connecting through hole in the middle of the conductive connecting plate and is inserted between the hooks of the limiting pieces of the first and second conductive terminal substrates.

4. The rail-mounted terminal block according to claim 2 or 3, characterized in that: Limiting parts bent inwards are respectively arranged on both sides of the upper end surfaces of the substrate of the first and second conductive terminals at the corresponding notches; and limiting grooves matching the limiting parts are arranged on the fixing part of the first elastic pressure sheet.

5. The rail-mounted terminal block according to claim 1, 2, 3 or 4, characterized in that: The substrates of the first and second conductive terminals are connected to the conductive connecting plate by riveting or mortise and tenon connection; more preferably, a plurality of rivets or tenons are protruding from the conductive connecting plate, and correspondingly, riveted through holes or mortises are provided on the substrates of the first and second conductive terminals.

6. The rail-mounted terminal block according to claim 1, 2, 3, 4 or 5, characterized in that: A limiting block is protruded from the lower part of the substrate of the first and second conductive terminals relative to the second elastic sheet. Correspondingly, a limiting groove matching the limiting block is provided at the base of the second elastic sheet, and the base is limited to the substrate by this.

7. The rail-mounted terminal block according to claim 1 or 2, characterized in that: The swing arm rod includes a fixed portion, and a pressing portion and a leaning portion extending from both ends of the fixed portion respectively; the fixed portion of the swing arm rod is pivotally connected to the second mounting hole of the insulating base, and the leaning portion corresponds to the abutting portion of the second elastic sheet; preferably, short shafts are protruding on both sides of the fixed portion of the swing arm rod, and correspondingly, guide grooves for embedding the short shafts are provided on both side walls of the second mounting hole of the insulating base.

8. The rail-mounted terminal block according to claim 1 or 2, characterized in that: The end faces of the first guide column, the second guide column and / or the first positioning column, the second positioning column are respectively provided with blind holes, and correspondingly, the inner side surface of the cover plate is convexly provided with a first fixing column matching the blind hole.

9. The rail-mounted terminal block according to claim 1 or 2, characterized in that: A U-shaped limiting plate is provided in the middle of the inner side surface of the cover plate, and the U-shaped limiting plate is against the bottom plate of the first conductive terminal; preferably, a baffle is vertically provided in the middle of the inner side surface of the cover plate, and the baffle can be against one side of the two second positioning columns; more preferably, second fixing columns are provided on both sides of the inner side surface of the cover plate, and correspondingly, fixing holes matching with the second fixing columns are provided on both sides of the front side of the insulating base.

10. The rail-mounted terminal block according to any one of claims 1 to 9, characterized in that: A side plate is arranged on one side of the first conductive terminal close to the first elastic sheet, and the front end of the first contact portion of the first elastic sheet abuts against the inner wall of the side plate.

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