CN213782316U - Clamping pin mounting structure, connecting core and free-beating crystal head - Google Patents

Abstract

The application relates to a clamping pin mounting structure, a connecting core and a free-beating crystal head, wherein the clamping pin mounting structure comprises a clamping pin and a fixed seat, the clamping pin comprises a clamping wire part, a connecting part and a contact part, one side of the fixed seat is provided with a first mounting groove and a second mounting groove, the clamping wire part is arranged in the first mounting groove in a penetrating manner and clamped with the fixed seat, the connecting part and the contact part are arranged in the second mounting groove in a penetrating manner, and one end surface of the fixed seat is provided with a contact opening; the wire clamping part extends in the direction away from the connecting part and extends out of the fixed seat, and the contact part is provided with an elastic protrusion protruding out of the contact opening. The connecting core comprises a circuit substrate, an upper plastic part, a lower plastic part, a plastic cover plate and a wire clamping block, wherein a plurality of upper clamping pins are arranged on the upper plastic part, a plurality of lower clamping pins are arranged on the lower plastic part, and the upper clamping pins and the mounting structure of the upper plastic part as well as the lower clamping pins and the mounting structure of the lower plastic part are connected by adopting the mounting structures. The application has the effects of higher production efficiency and simple installation.

Description

Clamping pin mounting structure, connecting core and free-beating crystal head

Technical Field

The application relates to the field of network cable connection accessories, in particular to a clamping pin mounting structure, a connection core and a free-beating crystal head.

Background

At present, when the network cable is connected with the crystal head, eight electric wires with corresponding marking colors in the network cable need to be arranged in eight corresponding holes on the crystal head in a penetrating manner according to the connection standard 568A or 568B, and then the clamping pins on the crystal head are extruded by the network cable pliers, so that the clamping pins pierce through an encapsulating layer of the network cable to complete the connection of the crystal head and the network cable.

The free-beating crystal head is a crystal head which can connect the network cable with the network cable without network cable pliers, and generally requires a user to firstly insert eight network cables into the free-beating crystal head according to a preset connection mode, and then to pierce through a clamping pin into an encapsulating layer corresponding to the network cable by pressing a shell so as to contact with an inner conductor.

In the actual production process, the clamping pins are usually fixed on the crystal head in a manner of being pre-welded on the circuit substrate. Thus, the inventors have found that this manner of securing is inconvenient and inefficient to assemble.

SUMMERY OF THE UTILITY MODEL

In order to improve packaging efficiency to a certain extent, this application provides a bayonet catch mounting structure, connects the core and exempts from to beat the quartzy head.

First aspect, the application provides a card foot mounting structure adopts following technical scheme:

a clamping pin mounting structure comprises a clamping pin and a fixing seat, wherein the clamping pin comprises a clamping wire part, a connecting part and a contact part which are sequentially connected, a first mounting groove and a second mounting groove which are mutually communicated are formed in one side of the fixing seat, the clamping wire part is arranged in the first mounting groove in a penetrating mode and clamped with the fixing seat, the connecting part and the contact part are arranged in the second mounting groove in a penetrating mode, and the second mounting groove penetrates through one end face of the fixing seat along the direction far away from the first mounting groove to form a contact opening;

the clamping wire part extends in the direction away from the connecting part and extends out of the fixed seat, and the contact part is provided with an elastic protrusion protruding out of the contact opening.

Through adopting above-mentioned technical scheme, in the assembling process, pack the joint into the fixing base along the orientation of seting up of first mounting groove and second mounting groove, and the contact site is fixed with the fixing base joint through card line portion for the contact site also can realize fixedly for the fixing base. Meanwhile, the contact part is used for being connected with the circuit substrate, and the elastic convex arrangement protruding out of the contact opening enables the contact part to always have a pretightening force on the circuit substrate, so that the connection strength between the clamping pin and the circuit substrate is improved. And conveniently assemble through the mode of this kind of joint connection, efficiency is higher.

Preferably, be provided with the elasticity fixture block on the card line portion, the elasticity fixture block leans out along the extending direction of card line portion, be provided with the draw-in groove that supplies elasticity fixture block to wear to establish and the joint on the fixing base.

Through adopting above-mentioned technical scheme, because the elasticity fixture block has certain incline direction, and then in the assembling process of card line portion, the elasticity fixture block can receive the extrusion of the cell wall of first mounting groove and return and contract, and then make things convenient for card foot and fixing base to install, and simultaneously, when elasticity fixture block and draw-in groove when just right with, through the elasticity restoring force that the elasticity fixture block had, make the elasticity fixture block resume the original state and wear to establish to the draw-in groove in, draw the in-process of card foot outwards, block card foot and fixing base emergence and break away from through spacing of elasticity fixture block, thereby realize that the mutual joint of card foot and fixing base is fixed.

Preferably, the two ends of the connecting part along the extension direction are provided with outwards protruding bulges, and the bulges are abutted against the groove wall of the second mounting groove.

Through adopting above-mentioned technical scheme, when the setting of bulge can improve the card foot fixed, the joint strength between connecting portion and the fixing base reduces the not hard up emergence of card foot, and then improves the structural strength of contact site to a certain extent.

Preferably, one end of the contact part, which is far away from the connecting part, is provided with a limiting part, and a limiting groove for the limiting part to penetrate is formed in the groove wall of the second mounting groove.

Through adopting above-mentioned technical scheme, the tip that sets up of spacing portion and spacing groove makes the contact site can carry on spacingly, and at the in-process that elastic bulge pressurized retraction, the tip of contact site can not take place to retract, and then joint strength and contact effect when can improve the structural strength of contact site and be connected with circuit substrate to a certain extent.

In a second aspect, the present application provides a connection core, which adopts the following technical scheme:

a connecting core comprises a circuit substrate, an upper plastic part, a lower plastic part, a plastic cover plate and a wire clamping block, wherein the upper plastic part and the lower plastic part are respectively arranged at two sides of the circuit substrate;

the elastic bulges of the upper clamping pins and the elastic bulges of the lower clamping pins are in one-to-one corresponding butt joint with the contact pieces of the circuit substrate, and the wire clamping parts of the upper clamping pins and the wire clamping parts of the lower clamping pins penetrate through the plastic cover plate.

Through adopting above-mentioned technical scheme, in the installation, at first with circuit substrate clamp locate on mould the piece and mould down between the piece to mould on will through moulding a apron and mould under will and mould between piece, circuit substrate and the piece and go on with fixed, hinder it to take place the separation, at this moment, elasticity protrusion supports tightly with the contact on the circuit substrate under the effect of elastic force, thereby make the card foot can communicate with circuit substrate and can keep better contact effect all the time. Meanwhile, the upper clamping pin and the lower clamping pin are connected with the circuit substrate in a fixing mode without welding and the like, so that the assembling efficiency is high, and the production is convenient.

Preferably, the lower plastic part is provided with a positioning column which penetrates through the circuit substrate and is connected with the upper plastic part, and the upper plastic part is provided with a positioning groove for the positioning column to correspondingly penetrate through.

Through adopting above-mentioned technical scheme, the setting of reference column and constant head tank is to moulding on, circuit substrate and moulding down and realize spacingly in the radial direction of reference column to mould a apron, mould on, circuit substrate and moulding down the relatively fixed of piece through mutually supporting with moulding a apron, holistic connectivity is better.

Preferably, mould a apron including butt joint board and an organic whole set up in the connecting plate at butt joint board both ends, both sides the connecting plate sets up respectively in last mould a and mould the both sides that a deviates from mutually down, on mould a and mould down and all correspond fixedly with the connecting plate joint.

Through adopting above-mentioned technical scheme, the fixed mode of joint is conveniently installed and is dismantled, need not the use of tools and can realize that the installation effectiveness is higher.

Preferably, the upper plastic part and the lower plastic part are respectively provided with a connecting groove for the connecting plate to penetrate through.

By adopting the technical scheme, the connecting groove can reduce the whole thickness of the connecting core and reduce the space occupied by the connecting core, so that the space occupied by the connecting core is smaller.

Preferably, mould a apron and still including an organic whole set up in butt joint board both ends and to the deflector that the card line piece extends, the deflector butt in the both sides of card line piece, be provided with the guide post on the card line piece, be provided with the guide way that supplies the guide post to wear to establish on the butt joint board.

Through adopting above-mentioned technical scheme, the setting of guide way can be so that when the effect that the card line piece realizes the direction to the in-process that moulds the apron and be close to, reduces the condition that takes place the skew in the connection process, conveniently connects.

In a third aspect, the application provides a beating-free crystal head, which adopts the following technical scheme:

a crystal head without beating comprises the connecting core.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the assembly efficiency is high, and the connection can be carried out in a bare-handed installation mode without tools for assembly and disassembly;

2. the connection strength is higher, and is good with the connection effect of net twine, is difficult to take place the condition of virtual connection.

Drawings

Fig. 1 is a schematic structural view illustrating a connection between a clip and a fixing base in embodiment 1 of the present application.

Fig. 2 is an exploded view of the clip and the fixing base in embodiment 1 of the present application.

Fig. 3 is a schematic structural view of the fixing base and the clip in another direction in embodiment 1 of the present application.

Fig. 4 is a schematic structural diagram of a clip in embodiment 1 of the present application.

FIG. 5 is a schematic view showing a structure of a connection core in embodiment 2 of the present application.

FIG. 6 is an exploded view of the connecting core in example 2 of the present application.

FIG. 7 is an exploded view of the connecting core in another view according to example 2 of the present application.

Fig. 8 is a schematic structural diagram of a crystal head without taking a crystal in embodiment 3 of the present application.

Fig. 9 is an exploded view of the crystal head according to embodiment 3 of the present application.

Description of reference numerals: 100. clamping a pin; 101. a wire clamping part; 102. a connecting portion; 103. a contact portion; 104. a wire clamping groove; 105. a projection; 106. elastic bulge; 107. a limiting part; 109. an elastic clamping block; 110. a hole of abdication; 20. a fixed seat; 21. a first mounting groove; 22. a second mounting groove; 23. a limiting groove; 24. a card slot; 300. a connecting member; 310. a circuit substrate; 311. a contact piece; 312. a touch panel; 320. plastic parts are coated; 321. positioning a groove; 322. connecting grooves; 323. a clamping block; 324. a first guide surface; 330. mounting a clamping pin; 340. a lower plastic part; 341. a groove is arranged in a penetrating way; 342. a positioning column; 350. a lower clamping pin; 400. a plastic cover plate; 410. a butt joint plate; 411. a guide groove; 420. a connecting plate; 421. a clamping groove; 422. a second guide surface; 430. a guide plate; 50. a wire clamping block; 51. a wiring slot; 52. a guide post; 6. a housing; 7. a gland; 8. a cable tray; 9. an identification ring; 10. connecting the cores; 11. and fixing the elastic sheet.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

Example 1:

the embodiment 1 of the application discloses a card foot mounting structure. Referring to fig. 1, the card pin 100 and the fixing base 20 are included, and the card pin 100 and the fixing base 20 are fixed in a clamping manner.

Referring to fig. 2, the clamping leg 100 includes a clamping line portion 101, a connecting portion 102, and a contact portion 103 integrally formed in this order, and the clamping line portion 101 and the contact portion 103 are extended in the same direction on the connecting portion 102. Wherein, a wire clamping groove 104 is arranged at one end of the wire clamping part 101 far away from the connecting part 102 in a penetrating way along the thickness direction.

One side of the fixing base 20 is provided with a first mounting groove 21 and a second mounting groove 22 which are communicated with each other, the clamping wire part 101 is arranged in the first mounting groove 21 in a penetrating manner and is clamped and fixed with the fixing base 20, the clamping wire part 101 extends out of the fixing base 20 in a direction away from the connecting part 102, and the connecting part 102 and the contact part 103 are arranged in the second mounting groove 22 in a penetrating manner. The width of the first mounting groove 21 is greater than that of the second mounting groove 22, and similarly, the width of the wire clamping part 101 is greater than that of the connecting part 102 and the contact part 103, so that the wire clamping part 101 can only slide in the first mounting groove 21. Meanwhile, the width of the connecting portion 102 is smaller than that of the second mounting groove 22, but both ends of the connecting portion 102 along the extending direction thereof are integrally provided with a protruding portion 105 protruding outward, and the protruding portions 105 at both sides are abutted against the groove walls at both sides of the second mounting groove 22.

Referring to fig. 2 and 3, the second mounting groove 22 penetrates an end surface of the fixing base 20 in a direction away from the first mounting groove 21 to form a contact opening, and the contact portion 103 has an elastic protrusion 106 protruding from the contact opening. The middle part of the contact part 103 is bent to one side by stamping, and the stamping part forms the elastic protrusion 106 and partially protrudes out of the fixed seat 20, when the contact part 103 contacts with the outside and is extruded, the contact part 103 is always restored to the original state by the elastic protrusion 106 and the elasticity of the connection between the contact part 103 and the connecting part 102 so as to generate the trend of extruding outwards.

In order to improve the structural strength and the elastic force of the contact portion 103, a limiting portion 107 is integrally disposed at one end of the contact portion 103 away from the connecting portion 102, and a limiting groove 23 for the limiting portion 107 to penetrate is disposed on a groove wall of the second mounting groove 22. The width of the limiting portion 107 is greater than the width of the contact portion 103, and the limiting groove 23 penetrates through the clamping wire portion 101 and extends out of one side wall of the fixing seat 20, so that when the contact portion 103 deforms under the action of external force, the end, away from the connecting portion 102, of the contact portion 103 can be limited through the limiting portion 107, retraction of the end is avoided, and meanwhile, in the process of receiving external pressure, the limiting portion 107 can slide towards the extending direction of the clamping wire portion 101 to meet the deformation of the contact portion 103.

Referring to fig. 4 in combination with fig. 1, an elastic latch 109 is integrally disposed on the wire-clamping portion 101, one end of the elastic latch 109 is integrally disposed on the wire-clamping portion 101, and the other end of the elastic latch 109 is inclined outward along the extending direction of the wire-clamping portion 101, specifically, the elastic latch 109 is formed by stamping on the wire-clamping portion 101, that is, the wire-clamping portion 101 has a hole 110 for the elastic latch 109 to pass through after being deformed. Meanwhile, the fixing base 20 is provided with a clamping groove 24 for the elastic clamping block 109 to penetrate and clamp, in this embodiment, in order to detach the clamping leg 100 conveniently, the clamping groove 24 is disposed at one end of the first mounting groove 21 far away from the second mounting groove 22 and penetrates through a groove wall of the first mounting groove 21. Therefore, in the process of detaching the clip 100, the clip 100 can be detached from the fixing base 20 by pressing the elastic clip 109 on the outer side of the fixing base 20 and separating the elastic clip 109 from the clip groove 24.

The implementation principle of the mounting structure of the clamping leg 100 in the embodiment of the application is as follows: when the clamping foot 100 needs to be installed, the clamping foot 100 is installed in the fixing seat 20 along the notch directions of the first installation groove 21 and the second installation groove 22, and then the clamping foot 100 is clamped on the fixing seat 20 through the arrangement of the elastic clamping block 109, so that the installation of the clamping foot 100 is completed.

Example 2:

the embodiment 2 of the present application discloses a connecting core, and referring to fig. 5, the connecting core comprises a connecting member 300, a plastic cover plate 400 and a wire clamping block 50 which are sequentially arranged. Wherein, the card line piece 50 is kept away from one side of moulding a apron 400 and is used for supplying the net twine to wear to establish, and the net twine is worn to establish and is connected through connecting piece 300 after moulding between apron 400 and the card line piece 50, and the one end that the connecting piece 300 kept away from moulding an apron 400 can supply network interface connection.

Referring to fig. 6 in combination with fig. 2, the connecting member 300 includes a circuit substrate 310, an upper molding member 320, an upper clamping leg 330, a lower molding member 340 and a lower clamping leg 350, the upper molding member 320 and the lower molding member 340 are respectively disposed on the upper and lower sides of the circuit substrate 310, and the molding cover 400 is used for fixing the upper molding member 320, the circuit substrate 310 and the lower molding member 340 to each other. The upper clamping feet 330 are provided with four and mounted on the upper plastic part 320, and the lower clamping feet 350 are correspondingly provided with four and mounted on the lower plastic part 340. The mounting structure of the upper clamping leg 330 and the upper plastic part 320 and the mounting structure of the lower clamping leg 350 and the lower plastic part 340 are the same as the mounting structure of the clamping leg and the fixing seat in embodiment 1, specifically, the upper clamping leg 330 and the lower clamping leg 350 in this embodiment correspond to the clamping leg 100 in embodiment 1, and the upper plastic part 320 and the lower plastic part 340 in this embodiment correspond to the fixing seat 20 in embodiment 1. It should be noted that the structures of the upper plastic part 320, the lower plastic part 340, the upper clamping leg 330 and the lower clamping leg 350 can be adaptively changed according to the actual size design requirement, so that the connecting portion 102 of the lower clamping leg 350 in this embodiment is shortened according to the actual size requirement (adapted to the size of the lower plastic part 340), and the connecting portion 102 of the lower clamping leg 350 in this embodiment is not provided with the protruding portion 105.

The circuit substrate 310 faces the two end faces of the upper plastic part 320 and the lower plastic part 340 and is provided with four contact pieces 311 on one side close to the plastic cover plate 400, eight parallel contact plates 312 are longitudinally clamped on one side of the circuit substrate 310 away from the plastic cover plate 400, a through groove 341 for the contact plates 312 to penetrate through is formed in the lower plastic part 340, and the eight contact pieces 311 are connected with the eight contact plates 312 in a one-to-one correspondence manner. The elastic protrusions 106 of the four upper pins 330 on the upper plastic part 320 and the elastic protrusions 106 of the four lower pins 350 on the lower plastic part 340 are respectively and correspondingly abutted against the eight contact pieces 311 on the circuit substrate 310, and the four upper pins 330 and the four lower pins 350 are communicated with the eight contact pieces 311 through the limit of the plastic cover plate 400.

Referring to fig. 6 and 7, the lower molding 340 is integrally provided with at least one positioning post 342 penetrating through the circuit substrate 310 and connected to the upper molding 320, and the upper molding 320 is correspondingly provided with at least one positioning groove 321 for the positioning post 342 to correspondingly penetrate through. The positioning posts 342 are disposed to limit the upper molding member 320, the circuit board 310 and the lower molding member 340 in the radial direction of the positioning posts 342.

The plastic cover plate 400 comprises an abutting plate 410 abutting against the upper plastic part 320 and the lower plastic part 340 and connecting plates 420 integrally arranged at two ends of the abutting plate 410, the connecting plates 420 at two sides are respectively arranged at two sides of the upper plastic part 320 and the lower plastic part 340 deviating from each other, and the upper plastic part 320 and the lower plastic part 340 are correspondingly and fixedly clamped with the connecting plates 420. The connecting plate 420 and the upper plastic part 320 and the lower plastic part 340 are connected in the same manner, and the connecting plate 420 and the upper plastic part 320 are connected by way of example, wherein the end of the upper plastic part 320, which is away from the circuit board 310, is provided with a connecting groove 322 for the connecting plate 420 to penetrate through, the bottom of the connecting groove 322 is integrally provided with a clamping block 323 on the upper plastic part 320, and correspondingly, the connecting plate 420 is provided with a clamping groove 421 for the clamping block 323 to penetrate through. However, it should be noted that the engaging groove 421 may or may not pass through the connecting plate 420, and based on the same inventive concept, the engaging block 323 may also be disposed on the connecting plate 420, so that the engaging groove 421 is correspondingly disposed on the upper plastic part 320.

Specifically, a first guide surface 324 is provided on one side of the clamping block 323 facing the insertion direction of the connecting plate 420, a second guide surface 422 is provided on one side of the connecting plate 420 facing the clamping block 323, and the first guide surface 324 and the second guide surface 422 facilitate the fitting of the connecting member 300 and the plastic cover plate 400.

When the connecting member 300 is connected to the plastic cover 400, the wire-locking portions 101 of the four upper pins 330 and the wire-locking portions 101 of the four lower pins 350 penetrate and extend out of the plastic cover 400. Correspondingly, the wire clamping block 50 is correspondingly provided with wire grooves 51 which are correspondingly matched with the wire clamping parts 101 of the four upper clamping pins 330 and the wire clamping parts 101 of the four lower clamping pins 350 one by one. When connection is needed, the network cable is firstly inserted into the corresponding connection slot 51, then the plastic cover plate 400 and the cable clamping block 50 are pressed, so that the cable clamping part of the upper clamping pin 330 and the cable clamping part 101 of the lower clamping pin 350 pierce through the encapsulating layer of the corresponding network cable and contact with the inner conductor thereof, and the communication between the network cable and the corresponding contact plate 312 is realized.

Therefore, in order to position and guide the wire clamping block 50 during the press-fitting process, the plastic cover 400 further includes guide plates 430 integrally disposed at two ends of the abutting plate 410 and extending toward the wire clamping block 50, and the guide plates 430 abut against two sides of the wire clamping block 50. The wire clamping block 50 is provided with a guide post 52, the abutting plate 410 is provided with a guide groove 411 through which the guide post 52 is inserted, and the end of the guide post 52 away from the wire clamping block 50 is arranged in a quadrangular pyramid shape.

The implementation principle of the connecting core in the embodiment of the application is as follows: in the installation process, the upper molding part 320, the circuit substrate 310 and the lower molding part 340 are sequentially stacked, the positioning column 342 correspondingly penetrates through the circuit substrate 310 and the upper molding part 320, the upper clamping pin 330 and the lower clamping pin 350 sequentially penetrate through the molding cover plate 400, and the molding cover plate 400, the upper molding part 320 and the lower molding part 340 are respectively clamped to complete the installation.

Example 3:

the embodiment 3 of the present application discloses a crystal head without beating, referring to fig. 8 and 9, the crystal head without beating includes a housing 6, a gland 7, a cable tray 8, an identification ring 9 and a connection core 10 as described in embodiment 2. Wherein, be provided with fixed shell fragment 11 on the casing 6, connect the core 10 and install in casing 6 through the mode of joint, gland 7 articulates on casing 6, and the cable holds in the palm one side that line blocking piece 50 that 8 is fixed in connection core 10 kept away from a apron 400 of moulding, can drive the line blocking piece 50 of connecting core 10 and be close to a apron 400 of moulding through overturning gland 7 and fixing with casing 6.

In the installation process, the gland 7 is firstly opened, then the network cable is correspondingly connected to the cable clamping block 50 after sequentially passing through the identification ring 9, the cable support 8 and the cable clamping block 50, and then the cable clamping block 50 is installed on the corresponding position of the shell 6. Then, the gland 7 is closed, the wire clamping block 50 is forced to move towards the direction close to the plastic cover plate 400 by the driving of the gland 7, so that the upper clamping pin 330 and the lower clamping pin 350 pierce the corresponding network cable and are connected with the inner conductor of the network cable, and the installation of the crystal head without beating is further realized.

It should be noted that, the mounting structure of the crystal head is not limited to the above-mentioned embodiment, and a structure that can push the wire clamping block 50 to move toward the plastic cover plate 400 is within the protection scope of the present application, which is a structural design that can be made by those skilled in the art after understanding the implementation principle of the connecting core 10 of the present application, and is not described herein again.

Similarly, the connecting core 10 of the present application is not limited to be applied to a play-free crystal head, but may be correspondingly applied to a play-free network module, and only the structure of the connecting member 300 needs to be adaptively modified, which is not described herein again.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a card foot mounting structure which characterized in that: the clamping device comprises a clamping pin (100) and a fixing seat (20), wherein the clamping pin (100) comprises a clamping line part (101), a connecting part (102) and a contact part (103) which are sequentially connected, one side of the fixing seat (20) is provided with a first mounting groove (21) and a second mounting groove (22) which are communicated with each other, the clamping line part (101) is arranged in the first mounting groove (21) in a penetrating manner and clamped with the fixing seat (20), the connecting part (102) and the contact part (103) are arranged in the second mounting groove (22) in a penetrating manner, and the second mounting groove (22) penetrates through one end face of the fixing seat (20) along the direction far away from the first mounting groove (21) to form a contact opening;

the wire clamping part (101) extends in the direction away from the connecting part (102) and extends out of the fixed seat (20), and the contact part (103) is provided with an elastic protrusion (106) protruding out of the contact opening.

2. The clip mounting structure according to claim 1, wherein: an elastic clamping block (109) is arranged on the clamping line part (101), the elastic clamping block (109) inclines outwards along the extension direction of the clamping line part (101), and a clamping groove (24) for the elastic clamping block (109) to penetrate through and be clamped is arranged on the fixed seat (20).

3. The clip mounting structure according to claim 1, wherein: the two ends of the connecting part (102) in the extension direction are provided with outwards protruding convex parts (105), and the convex parts (105) are abutted with the groove walls of the second mounting groove (22).

4. The clip mounting structure according to claim 1, wherein: one end, far away from the connecting part (102), of the contact part (103) is provided with a limiting part (107), and a limiting groove (23) for the limiting part (107) to penetrate is formed in the groove wall of the second mounting groove (22).

5. A coupling core, characterized by: the plastic wire harness comprises a circuit substrate (310), an upper plastic part (320), a lower plastic part (340), a plastic cover plate (400) and a wire clamping block (50), wherein the upper plastic part (320) and the lower plastic part (340) are respectively arranged at two sides of the circuit substrate (310), the plastic cover plate (400) is used for fixing the upper plastic part (320), the circuit substrate (310) and the lower plastic part (340), the upper plastic part (320) is provided with a plurality of upper clamping pins (330), the lower plastic part (340) is provided with a plurality of lower clamping pins (350), and the mounting structures of the upper clamping pins (330) and the upper plastic part (320) and the mounting structures of the lower clamping pins (350) and the lower plastic part (340) are connected by adopting the mounting structure as claimed in any one of claims 1-4;

the elastic bulges (106) of the upper clamping pins (330) and the elastic bulges (106) of the lower clamping pins (350) are correspondingly abutted with the contact pieces (311) of the circuit substrate (310) one by one, and the wire clamping parts (101) of the upper clamping pins (330) and the wire clamping parts (101) of the lower clamping pins (350) penetrate through the plastic cover plate (400).

6. The connection core according to claim 5, wherein: the lower plastic part (340) is provided with a positioning column (342) which penetrates through the circuit substrate (310) and is connected with the upper plastic part (320), and the upper plastic part (320) is provided with a positioning groove (321) for the positioning column (342) to correspondingly penetrate through.

7. The connection core according to claim 5, wherein: mould a apron (400) including butt joint board (410) and integrative connecting plate (420) that sets up in butt joint board (410) both ends, both sides connecting plate (420) set up respectively on mould a (320) and mould the both sides that (340) deviate from mutually down, on mould a (320) and mould down and all correspond with connecting plate (420) joint fixed.

8. The connection core according to claim 7, wherein: the upper plastic part (320) and the lower plastic part (340) are respectively provided with a connecting groove (322) for the connecting plate (420) to penetrate through.

9. The connection core according to claim 7, wherein: the plastic cover plate (400) further comprises guide plates (430) which are integrally arranged at two ends of the abutting plate (410) and extend towards the wire clamping block (50), the guide plates (430) abut against two sides of the wire clamping block (50), guide posts (52) are arranged on the wire clamping block (50), and guide grooves (411) for the guide posts (52) to penetrate are formed in the abutting plate (410).

10. The utility model provides a exempt from to beat quartzy head which characterized in that: comprising a connection core (10) according to any of claims 5-9.

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