A spliced ​​injection molded insert

Abstract

The utility model discloses a spliced ​​injection molded insert, which relates to the technical field of injection molding, and comprises a first injection molded component and a second injection molded component. The first injection molded component comprises a first injection molded shell and a first embedded component, and the second injection molded component comprises a second injection molded shell and a second embedded component. A pair of plug-in positioning rods are arranged at one end of the first injection molded shell, a plug-in positioning groove matched with the pair of plug-in positioning rods is arranged on the second injection molded shell, a pair of locking bolts are arranged at one end of the second injection molded shell, a locking through hole matched with the pair of locking bolts is arranged on the first injection molded shell, the other end of the locking bolt can pass through the locking through hole, a locking nut is arranged on one end of the locking bolt passing through the locking through hole, and the locking nut is threadedly connected with the locking bolt, so as to solve the problem that when the current injection molded insert is used for cable connection, it is easy to be disconnected when subjected to external force because it is only connected by plugging, thereby affecting the signal transmission of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, and relates to a spliced ​​injection molded insert, in particular to a spliced ​​injection molded insert connector for cable connection. Background Art

[0002] Injection molded inserts refer to parts produced using injection molding technology. Injection molding is a manufacturing process in which molten plastic material is injected into a mold and then cooled to form the desired product. Injection molded inserts are usually used in the fields of automobiles, electronic products, home appliances, etc., and have the advantages of high precision, high strength, and short molding cycle.

[0003] In the fields of electronic products, automobiles, etc., injection molded inserts are often used to connect cables, such as plugs, sockets and other components. Through injection molding technology, cable connectors with good appearance and high precision can be produced to ensure the firmness and electrical performance of the connection. After being designed and tested, injection molded inserts can usually meet the needs of cable connection. In the prior art, injection molded inserts used to connect cables are usually connected only by plugging. When subjected to external force, they are easily disconnected, thereby affecting the signal transmission of the cable.

[0004] In the invention with application number: CN201010238935.5 and publication number: CN102340075B, a cable connector is disclosed, which includes: a conductive terminal, an insulator for accommodating the conductive terminal, a shell for accommodating the insulator, and a cable connected to the conductive terminal. It is still only connected by plugging, and when subjected to external force, it is easy to disconnect, thereby causing problems affecting the signal transmission of the cable. Utility Model Content

[0005] Based on this, in order to solve the above problems, the utility model proposes a spliced ​​injection molded insert, which solves the problem that when the current injection molded insert is used for cable connection, it is only connected by plugging, and it is easy to be disconnected when subjected to external force, thereby affecting the signal transmission of the cable.

[0006] The technical solution of the utility model is:

[0007] A spliced ​​injection molded insert comprises a first injection molded component and a second injection molded component, the first injection molded component and the second injection molded component are detachably connected, the first injection molded component comprises a first injection molded shell and a first embedded component, the first embedded component is matched with the first injection molded shell, the second injection molded component comprises a second injection molded shell and a second embedded component, the second embedded component is matched with the second injection molded shell, the first injection molded shell and the second injection molded shell are detachably connected, and one end of the first injection molded shell can contact one end of the second injection molded shell;

[0008] A pair of plug-in positioning rods are provided at one end of the first injection-molded housing that contacts the second injection-molded housing, and a plug-in positioning groove that cooperates with the pair of plug-in positioning rods is provided on the second injection-molded housing, and the plug-in positioning rods can be inserted into the plug-in positioning grooves and plugged with the plug-in positioning grooves;

[0009] The second injection molded shell is provided with a pair of locking bolts at one end of the plug-in positioning groove, one end of the locking bolt is located in the second injection molded shell, the first injection molded shell is provided with a locking through hole that is matched with the pair of locking bolts, the other end of the locking bolt can pass through the locking through hole and match the gap with the locking through hole, a locking nut is provided on one end of the locking bolt that passes through the locking through hole, and the locking nut is threadedly connected to the locking bolt for locking the first injection molded shell and the second injection molded shell.

[0010] Preferably, the first embedded part includes an insertion tube and a first sleeve, the insertion tube is arranged at one end of the first injection molded shell provided with a plug-in positioning rod, and one end of the insertion tube is located in the first injection molded shell, the first sleeve is arranged at the other end of the first injection molded shell, and one end of the first sleeve is located in the first injection molded shell, the end of the first sleeve located in the first injection molded shell contacts with the end of the insertion tube located in the first injection molded shell, the end of the second injection molded shell provided with a plug-in positioning groove is provided with an insertion groove matched with the insertion tube, and the insertion tube can be plugged into the insertion groove.

[0011] Preferably, the second insert includes a second sleeve, which is arranged at the other end of the second injection molded shell, and one end of the second sleeve is located in the second injection molded shell. When the insertion tube is inserted into the insertion groove, the end of the second sleeve located in the second injection molded shell can contact the end of the insertion tube inserted in the insertion groove.

[0012] Preferably, a first limiting ring is provided at the end of the insertion tube located in the first injection molded shell, a first limiting step cooperating with the first limiting ring is provided on the first injection molded shell, a second limiting ring is provided at the end of the first sleeve located in the first injection molded shell, a second limiting step cooperating with the second limiting ring is provided in the first injection molded shell, and the first limiting ring and the second limiting ring are restricted between the first limiting step and the second limiting step.

[0013] Preferably, a third limiting ring is provided at the end of the second sleeve located at one end inside the second injection molded shell, and a third limiting step is provided inside the second injection molded shell to cooperate with the third limiting ring. When the insertion tube is inserted into the insertion groove, the third limiting ring is restricted between the third limiting step and the insertion tube, and the insertion tube is in contact with the third limiting ring.

[0014] Preferably, the first injection molded shell is provided with a first sealing ring, which is arranged at one end of the first injection molded shell in contact with the second injection molded shell, and the second injection molded shell is provided with a first sealing groove cooperating with the first sealing ring, and the first sealing ring can be inserted into the first sealing groove and plugged into the first sealing groove.

[0015] Preferably, a second sealing ring is provided at one end of the insertion tube plugged into the insertion groove, a second sealing groove cooperating with the second sealing ring is provided on the third limiting ring, and the second sealing ring can be inserted into and plugged into the second sealing groove.

[0016] Preferably, it also includes a connecting component, which includes a pin and a socket adapted to the pin, one end of the pin is located in the insertion tube and is slidably connected to the insertion tube, one end of the socket is arranged in the insertion groove and is arranged in coordination with the pin and the insertion tube, one end of the pin can be inserted into the socket and plugged with the socket, when the insertion tube is plugged into the insertion groove, the socket is plugged into the insertion tube, and the pin is plugged into the socket.

[0017] Preferably, a first limit position cooperating with the insertion pin is provided between the insertion tube and the first sleeve, and one end of the insertion pin can contact and limit with the first limit position.

[0018] Preferably, a second limiting position cooperating with the socket is provided between the insertion tube and the second sleeve, and one end of the socket can contact and limit the second limiting position.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] When in use, the first injection molded shell and the second injection molded shell are matched, so that the pair of plug-in positioning rods on the first injection molded shell correspond to the pair of plug-in positioning grooves on the second injection molded shell respectively, and at the same time, the pair of locking bolts on the second injection molded shell correspond to the pair of locking through holes on the first injection molded shell, and then the first injection molded shell and the second injection molded shell are spliced, so that the plug-in positioning rods are inserted into the plug-in positioning grooves, the locking bolts pass through the locking through holes, and then the locking nuts are used to screw in the locking bolts, so that the first injection molded shell and the second injection molded shell are stably connected. This solves the problem that when the current injection molded inserts are used for cable connection, they are only connected by plugging, and are easily disconnected when subjected to external forces, thereby affecting the signal transmission of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a spliced ​​injection molded insert described in an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a spliced ​​injection molded insert after the cable is installed in the embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the first injection molding component described in an embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the second injection molding component described in the embodiment of the utility model;

[0025] Figure 5 It is a schematic cross-sectional structure diagram of a spliced ​​injection molded insert described in an embodiment of the utility model;

[0026] Figure 6 It is described in the embodiment of the utility model Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 7 It is described in the embodiment of the utility model Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of a spliced ​​injection molded insert after the cable is installed in the embodiment of the utility model;

[0029] Description of reference numerals:

[0030] 10-first injection molding component, 100-first injection molding shell, 101-first embedded part, 102-insertion positioning rod, 103-locking through hole, 104-insertion tube, 105-first sleeve, 106-first limiting ring, 107-first limiting step, 108-second limiting ring, 109-second limiting step, 110-first sealing ring, 111-second sealing ring, 112-first limiting position, 20-second Injection molding assembly, 200-second injection molding shell, 201-second embedded part, 202-plug-in positioning groove, 203-locking bolt, 204-locking nut, 205-insertion groove, 206-second sleeve, 207-third limiting ring, 208-third limiting step, 209-first sealing groove, 210-second sealing groove, 211-second limiting point, 30-connecting assembly, 300-pin, 301-socket. DETAILED DESCRIPTION

[0031] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0032] Example:

[0033] like Figures 1 to 4As shown, in order to solve the above problems, the present embodiment discloses a spliced ​​injection molded insert, comprising a first injection molded component 10 and a second injection molded component 20, the first injection molded component 10 and the second injection molded component 20 are detachably connected, the first injection molded component 10 comprises a first injection molded housing 100 and a first embedding component 101, the first embedding component 101 is arranged in cooperation with the first injection molded housing 100, the second injection molded component 20 comprises a second injection molded housing 200 and a second embedding component 201, the second embedding component 201 is arranged in cooperation with the second injection molded housing 200, the first injection molded housing 100 and the second injection molded housing 200 are detachably connected, and one end of the first injection molded housing 100 can contact one end of the second injection molded housing 200;

[0034] A pair of plug-in positioning rods 102 are provided at one end of the first injection-molded housing 100 that contacts the second injection-molded housing 200. A plug-in positioning groove 202 that cooperates with the pair of plug-in positioning rods 102 is provided on the second injection-molded housing 200. The plug-in positioning rod 102 can be inserted into the plug-in positioning groove 202 and plugged with the plug-in positioning groove 202.

[0035] The second injection molded shell 200 is provided with a pair of locking bolts 203 at one end of the plug-in positioning groove 202, and one end of the locking bolt 203 is located in the second injection molded shell 200. The first injection molded shell 100 is provided with a locking through hole 103 that is arranged in cooperation with the pair of locking bolts 203. The other end of the locking bolt 203 can pass through the locking through hole 103 and is gap-matched with the locking through hole 103. A locking nut 204 is provided on one end of the locking bolt 203 that passes through the locking through hole 103. The locking nut 204 is threadedly connected to the locking bolt 203 for locking the first injection molded shell 100 and the second injection molded shell 200.

[0036] When in use, the first injection molded housing 100 and the second injection molded housing 200 are matched, so that the pair of plug-in positioning rods 102 on the first injection molded housing 100 correspond to the pair of plug-in positioning grooves 202 on the second injection molded housing 200, and the pair of locking bolts 203 on the second injection molded housing 200 correspond to the pair of locking through holes 103 on the first injection molded housing 100. Then, the first injection molded housing 100 and the second injection molded housing 200 are spliced, so that the plug-in positioning rods 102 are inserted into the plug-in positioning grooves 202, and the locking bolts 203 pass through the locking through holes 103. Then, the locking nuts 204 are used to screw the locking bolts 203, so that the first injection molded housing 100 and the second injection molded housing 200 are stably connected. This solves the problem that when the current injection molded insert is used for cable connection, it is easy to be disconnected when subjected to external force because it is only connected by plugging, thereby affecting the signal transmission of the cable.

[0037] like Figure 5As shown, in order to facilitate the installation of the connecting component 30, this embodiment is modified on the basis of the above embodiment, and the difference from the above embodiment is that the first insert 101 includes an insertion tube 104 and a first sleeve 105, the insertion tube 104 is arranged at one end of the first injection molded shell 100 provided with a plug-in positioning rod 102, and one end of the insertion tube 104 is located in the first injection molded shell 100, the first sleeve 105 is arranged at the other end of the first injection molded shell 100, and one end of the first sleeve 105 is located in the first injection molded shell 100, the end of the first sleeve 105 located in the first injection molded shell 100 contacts with the end of the insertion tube 104 located in the first injection molded shell 100, the second injection molded shell 200 is provided with a plug-in positioning groove 202, one end is provided with an insertion groove 205 matched with the insertion tube 104, and the insertion tube 104 can be plugged into the insertion groove 205.

[0038] Preferably, the second insert 201 includes a second sleeve 206, which is arranged at the other end of the second injection molded shell 200, and one end of the second sleeve 206 is located in the second injection molded shell 200. When the insertion tube 104 is inserted into the insertion groove 205, the end of the second sleeve 206 located in the second injection molded shell 200 can contact the end of the insertion tube 104 inserted into the insertion groove 205.

[0039] When in use, the arrangement of the insertion tube 104, the first sleeve 105 and the second sleeve 206 can facilitate the passage of the cables to be connected through the first sleeve 105 and the second sleeve 206. At the same time, the arrangement of the insertion tube 104 and the insertion slot 205 can make the installation of the connection component 30 more convenient, and play a role in preventing wrong insertion when the pin 300 and the socket 301 in the connection component 30 are plugged in.

[0040] like Figure 6 to Figure 7 As shown, in order to facilitate the insertion tube 104 and the first sleeve 105 to be stably fixed in the first injection molding shell 100 during injection molding, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a first limiting ring 106 is provided at the end of the insertion tube 104 located in the first injection molding shell 100, and a first limiting step 107 cooperating with the first limiting ring 106 is provided on the first injection molding shell 100. A second limiting ring 108 is provided at the end of the first sleeve 105 located in the first injection molding shell 100, and a second limiting step 109 cooperating with the second limiting ring 108 is provided in the first injection molding shell 100. The first limiting ring 106 and the second limiting ring 108 are restricted between the first limiting step 107 and the second limiting step 109.

[0041] After injection molding, the first limiting ring 106 and the second limiting ring 108 are limited between the first limiting step 107 and the second limiting step 109 , so that the insertion tube 104 and the first sleeve 105 are embedded and installed in the first injection molding shell 100 .

[0042] Preferably, a third limiting ring 207 is provided at the end of the second sleeve 206 located at one end inside the second injection molding shell 200, and a third limiting step 208 is provided inside the second injection molding shell 200 to cooperate with the third limiting ring 207. When the insertion tube 104 is inserted into the insertion groove 205, the third limiting ring 207 is restricted between the third limiting step 208 and the insertion tube 104, and the insertion tube 104 is in contact with the third limiting ring 207.

[0043] After injection molding, the second sleeve 206 is embedded and installed in the second injection molded shell 200. When the insertion tube 104 is inserted into the insertion groove 205 during use, the third limiting ring 207 is restricted between the third limiting step 208 and the insertion tube 104, and the insertion tube 104 is in contact with the third limiting ring 207, so that the second sleeve 206 can be more stably embedded and installed in the second injection molded shell 200.

[0044] In order to improve the sealing performance of the connection between the first sleeve 105, the insertion tube 104 and the second sleeve 206, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment lies in that a first sealing ring 110 is provided on the first injection molded shell 100, and the first sealing ring 110 is arranged at one end where the first injection molded shell 100 contacts the second injection molded shell 200, and a first sealing groove 209 is provided on the second injection molded shell 200 to cooperate with the first sealing ring 110, and the first sealing ring 110 can be inserted into the first sealing groove 209 and plugged into the first sealing groove 209.

[0045] When in use, the provision of the first sealing ring 110 and the first sealing groove 209 can indirectly improve the sealing performance of the connection between the first sleeve 105 , the insertion tube 104 and the second sleeve 206 .

[0046] Preferably, a second sealing ring 111 is provided at one end of the insertion tube 104 inserted into the insertion groove 205, and a second sealing groove 210 cooperating with the second sealing ring 111 is provided on the third limiting ring 207, and the second sealing ring 111 can be inserted into and plugged into the second sealing groove 210.

[0047] When in use, the provision of the second sealing ring 111 and the second sealing groove 210 can further improve the sealing of the connection between the first sleeve 105, the insertion tube 104 and the second sleeve 206, thereby improving the sealing of the connection of the connecting assembly 30.

[0048] like Figure 8As shown, in order to facilitate the connection of cables, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that it also includes a connecting component 30, and the connecting component 30 includes a pin 300 and a socket 301 adapted to the pin 300. One end of the pin 300 is located in the insertion tube 104 and is slidably connected to the insertion tube 104. One end of the socket 301 is arranged in the insertion groove 205 and is arranged in coordination with the pin 300 and the insertion tube 104. One end of the pin 300 can be inserted into the socket 301 and plugged with the socket 301. When the insertion tube 104 is plugged into the insertion groove 205, the socket 301 is plugged into the insertion tube 104, and the pin 300 is plugged into the socket 301.

[0049] Preferably, a first limit position 112 cooperating with the insertion pin 300 is provided between the insertion tube 104 and the first sleeve 105 , and one end of the insertion pin 300 can contact and limit the first limit position 112 .

[0050] Preferably, a second limiting portion 211 cooperating with the socket 301 is provided between the insertion tube 104 and the second sleeve 206 , and one end of the socket 301 can contact and limit the second limiting portion 211 .

[0051] When in use, one of the cables is connected to the pin 300 and the other cable is connected to the socket 301, and then the cable connected with the pin 300 is passed through the insertion tube 104 and the first sleeve 105 so that the pin 300 is located in the insertion tube 104, and the pin 300 is contacted and limited with the first limit position 112, and then the cable connected with the socket 301 is passed through the second sleeve 206 so that the socket 301 is located in the insertion groove 205, and the socket 301 is contacted and limited with the second limit position 211, and then the first injection molded shell 100 and the second injection molded shell 200 are correspondingly plugged in, so that the pin 300 can be inserted into the socket 301, and then the locking nut 204 can be tightened to complete the connection of the two cables. The locking nut 204 and the locking bolt 203 can be used to effectively fix the two cables, avoiding the problem that the injection molded inserts that are only connected by plug-in in the prior art are easily disconnected by external force.

[0052] Working principle of this utility model:

[0053] When in use, the first injection molded shell 100 and the second injection molded shell 200 are matched, so that the pair of plug-in positioning rods 102 on the first injection molded shell 100 correspond to the pair of plug-in positioning grooves 202 on the second injection molded shell 200 respectively, and at the same time, the pair of locking bolts 203 on the second injection molded shell 200 correspond to the pair of locking through holes 103 on the first injection molded shell 100, and then the first injection molded shell 100 and the second injection molded shell 200 are spliced, so that the plug-in positioning rod 102 is inserted into the plug-in positioning groove 202, the locking bolt 203 passes through the locking through hole 103, and then the locking nut 204 is used to screw the locking bolt 203 to ensure a stable connection between the first injection molded shell 100 and the second injection molded shell 200.

[0054] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A spliced ​​injection molded insert, characterized in that: The invention comprises a first injection molding component (10) and a second injection molding component (20), wherein the first injection molding component (10) and the second injection molding component (20) are detachably connected, the first injection molding component (10) comprises a first injection molding shell (100) and a first embedding component (101), the first embedding component (101) is arranged in cooperation with the first injection molding shell (100), the second injection molding component (20) comprises a second injection molding shell (200) and a second embedding component (201), the second embedding component (201) is arranged in cooperation with the second injection molding shell (200), the first injection molding shell (100) and the second injection molding shell (200) are detachably connected, and one end of the first injection molding shell (100) can contact one end of the second injection molding shell (200); A pair of plug-in positioning rods (102) are provided at one end of the first injection-molded housing (100) that contacts the second injection-molded housing (200); a plug-in positioning groove (202) that cooperates with the pair of plug-in positioning rods (102) is provided on the second injection-molded housing (200); the plug-in positioning rod (102) can be inserted into the plug-in positioning groove (202) and plugged with the plug-in positioning groove (202); The second injection molded housing (200) is provided with a pair of locking bolts (203) at one end of the plug-in positioning groove (202), one end of the locking bolts (203) is located in the second injection molded housing (200), the first injection molded housing (100) is provided with a locking through hole (103) which is arranged in cooperation with the pair of locking bolts (203), the other end of the locking bolt (203) can pass through the locking through hole (103) and is clearance-matched with the locking through hole (103), a locking nut (204) is provided on one end of the locking bolt (203) which passes through the locking through hole (103), the locking nut (204) is threadedly connected to the locking bolt (203) and is used to lock the first injection molded housing (100) and the second injection molded housing (200).

2. A spliced ​​injection molded insert according to claim 1, characterized in that: The first insert (101) comprises an insertion tube (104) and a first sleeve (105); the insertion tube (104) is arranged at one end of the first injection-molded housing (100) provided with a plug-in positioning rod (102), and one end of the insertion tube (104) is located in the first injection-molded housing (100); the first sleeve (105) is arranged at the other end of the first injection-molded housing (100), and one end of the first sleeve (105) is located in the first injection-molded housing (100); one end of the first sleeve (105) located in the first injection-molded housing (100) contacts one end of the insertion tube (104) located in the first injection-molded housing (100); one end of the second injection-molded housing (200) provided with a plug-in positioning groove (202) is provided with an insertion groove (205) matched with the insertion tube (104); the insertion tube (104) can be plugged into the insertion groove (205).

3. A spliced ​​injection molded insert according to claim 2, characterized in that: The second insert (201) includes a second sleeve (206), which is arranged at the other end of the second injection-molded shell (200), and one end of the second sleeve (206) is located in the second injection-molded shell (200). When the insertion tube (104) is inserted into the insertion groove (205), the end of the second sleeve (206) located in the second injection-molded shell (200) can contact the end of the insertion tube (104) inserted into the insertion groove (205).

4. A spliced ​​injection molded insert according to claim 3, characterized in that: A first limiting ring (106) is provided at an end of the insertion tube (104) located in the first injection molding shell (100), and a first limiting step (107) is provided on the first injection molding shell (100) to cooperate with the first limiting ring (106). A second limiting ring (108) is provided at an end of the first sleeve (105) located in the first injection molding shell (100), and a second limiting step (109) is provided in the first injection molding shell (100) to cooperate with the second limiting ring (108). The first limiting ring (106) and the second limiting ring (108) are restricted between the first limiting step (107) and the second limiting step (109).

5. A spliced ​​injection molded insert according to claim 4, characterized in that: A third limiting ring (207) is provided at an end of the second sleeve (206) located inside the second injection-molded shell (200), and a third limiting step (208) is provided inside the second injection-molded shell (200) to cooperate with the third limiting ring (207). When the insertion tube (104) is inserted into the insertion groove (205), the third limiting ring (207) is restricted between the third limiting step (208) and the insertion tube (104), and the insertion tube (104) is in contact with the third limiting ring (207).

6. A spliced ​​injection molded insert according to claim 5, characterized in that: A first sealing ring (110) is provided on the first injection-molded housing (100), and the first sealing ring (110) is arranged at one end of the first injection-molded housing (100) that contacts the second injection-molded housing (200). A first sealing groove (209) that cooperates with the first sealing ring (110) is provided on the second injection-molded housing (200), and the first sealing ring (110) can be inserted into the first sealing groove (209) and plugged into the first sealing groove (209).

7. A spliced ​​injection molded insert according to claim 6, characterized in that: A second sealing ring (111) is provided at one end of the insertion tube (104) plugged into the insertion groove (205), and a second sealing groove (210) matched with the second sealing ring (111) is provided on the third limiting ring (207). The second sealing ring (111) can be inserted into the second sealing groove (210) and plugged into the second sealing groove (210).

8. A spliced ​​injection molded insert according to claim 7, characterized in that: The device also includes a connection assembly (30), which includes a plug pin (300) and a socket (301) adapted to the plug pin (300). One end of the plug pin (300) is located in the insertion tube (104) and is slidably connected to the insertion tube (104). One end of the socket (301) is arranged in the insertion groove (205) and is arranged in coordination with the plug pin (300) and the insertion tube (104). One end of the plug pin (300) can be inserted into the socket (301) and connected to the socket (301). When the insertion tube (104) is connected to the insertion groove (205), the socket (301) is connected to the insertion tube (104), and the plug pin (300) is connected to the socket (301).

9. A spliced ​​injection molded insert according to claim 8, characterized in that: A first limit position (112) cooperating with the insertion pin (300) is provided between the insertion tube (104) and the first sleeve (105), and one end of the insertion pin (300) can contact and limit the first limit position (112).

10. A spliced ​​injection molded insert according to claim 9, characterized in that: A second limiting position (211) that cooperates with the socket (301) is provided between the insertion tube (104) and the second sleeve (206), and one end of the socket (301) can contact and limit the second limiting position (211).

Images