Upward-pressing and downward-pushing device for assembling electrical isolation adapter
By designing an upper-press and lower-push device for the electrical isolation adapter, and utilizing a pin and spring structure to achieve rapid and synchronous assembly, the problems of low assembly efficiency and low pass rate of optical components are solved, ensuring the integrity of the ceramic ferrule and the reliability of the assembled product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TENGJINGGUANG COMMUNICATION TECHNOLOGY (WUHAN) CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-19
AI Technical Summary
The existing optical components have low assembly efficiency and low pass rate. The ceramic ferrule end face is easily damaged, and the perpendicularity after assembly is poor, making them prone to breakage.
Design an upper and lower push device for an electrically isolated adapter, including a housing assembly and an electrically isolated adapter to be assembled. Through the cooperation of a first ejector pin and a second ejector pin, the various components are quickly and synchronously assembled. The interference fit and spring structure ensure assembly reliability.
It enables rapid and efficient assembly, improves the pass rate, avoids damage to the ceramic ferrule end face, and ensures the verticality and reliability of the assembled product.
Smart Images

Figure CN224254692U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of assembly equipment technology, and in particular to an upper pressure and lower push device for assembling an electrical isolation adapter. Background Technology
[0002] In conventional optical assembly, the process typically involves pressing and assembling one component at a time, followed by the next, and so on, one by one; or pressing and assembling two components at once, and so on, until the product is successfully assembled. Then, the product is removed and the next optical component is assembled. This method is very slow and has a low yield rate. In particular, the ceramic ferrule end face, commonly used in optical components, is prone to damage after repeated pressing. Furthermore, the overall verticality of the assembled optical component is often poor, resulting in it not being on a horizontal line and making it susceptible to breakage during use. Utility Model Content
[0003] In view of this, in order to solve the problems of low assembly efficiency, low pass rate, and damage to the end face of commonly used ceramic ferrule due to repeated pressing, the present invention provides an upper pressing and lower pushing device for assembling electrical isolation adapters.
[0004] An embodiment of this utility model provides an upper pressure and lower push device for assembling an electrically isolated adapter, comprising a housing assembly and an electrically isolated adapter to be assembled; wherein,
[0005] The outer casing assembly includes, from top to bottom, an upper cover, a middle cylinder, and a lower pad. An upper sealing block is provided between the upper cover and the middle cylinder. The upper outer wall of the upper sealing block is connected to the lower inner wall of the upper cover, and the lower outer wall is connected to the upper inner wall of the middle cylinder. A receiving hole is provided at the center of the upper end of the upper sealing block, and the lower end of the electrical isolation adapter to be assembled is received within the receiving hole. A through hole is provided at the center of the upper end of the upper cover, and a first ejector pin is provided inside the upper end of the through hole. The lower end of the first ejector pin passes through the through hole from top to bottom and connects with the adapter to be assembled. The upper end of the electrical isolation adapter is in contact with the middle cylinder and the lower pad. A lower sealing block is provided between the middle cylinder and the lower pad. The upper outer wall of the lower sealing block is connected to the lower inner wall of the middle cylinder and the lower end is connected to the upper end of the lower pad. A second ejector pin is provided inside the middle cylinder. The upper end of the second ejector pin passes through the receiving hole from bottom to top and contacts the lower end of the electrical isolation adapter to be assembled. The lower end passes through the lower sealing block and extends into the lower pad. A spring is sleeved on the outer wall of the second ejector pin. The upper end of the spring abuts against the upper end of the second ejector pin and the lower end abuts against the upper end of the lower sealing block.
[0006] Furthermore, the electrically isolated adapter to be assembled includes a lower body, an upper body, and a cap tube from bottom to top. The lower end of the lower body is accommodated in the accommodating hole, and the upper end is provided with a ceramic ferrule. The lower end of the upper body is sleeved on the upper end of the ceramic ferrule, and the upper end is accommodated in the lower end of the through hole. The outer wall of the lower end of the cap tube is in contact with the inner wall of the upper end of the upper body, and the upper end is located in the through hole. A sleeve is provided inside the cap tube. The lower end of the sleeve is sleeved on the upper end of the ceramic ferrule, and the outer wall of the sleeve is in contact with the inner wall of the upper body. The outer wall of the upper end is in contact with the inner wall of the upper end of the cap tube. The lower end of the first ejector pin is located inside the sleeve and contacts the upper end of the ceramic ferrule.
[0007] Furthermore, the upper end of the second ejector pin contacts the lower end of the ceramic insert.
[0008] Furthermore, a guide sleeve is provided inside the upper end of the through hole. The upper end of the guide sleeve abuts against the upper end surface of the upper cover, and the lower outer wall is in contact with the lower inner wall of the through hole. The first ejector pin is located inside the guide sleeve.
[0009] Furthermore, the outer wall of the upper cover is symmetrically provided with a number of button adjustment holes. Each button adjustment hole is connected to the through hole. Each button adjustment hole is provided with a threaded adjustment knob screw. One end of each adjustment knob screw located in the corresponding button adjustment hole abuts against the upper outer wall of the upper body, and the other end is located outside the corresponding button adjustment hole.
[0010] Furthermore, a handwheel is fixedly sleeved at one end of each adjustment knob screw located outside the corresponding button adjustment hole.
[0011] Furthermore, a base is provided below the lower pad, and a groove is provided on the upper surface of the base. The lower end of the lower pad is accommodated in the groove, and the lower end of the lower pad is in fixed contact with the bottom of the groove.
[0012] Furthermore, a third clearance hole is provided at the center of the lower sealing block, a first clearance hole is provided at the center of the lower pad, and a second clearance hole is provided at the center of the groove, and the axes of the third clearance hole, the first clearance hole, and the second clearance hole coincide with each other.
[0013] Furthermore, the lower end of the second ejector pin extends through the third clearance hole into the first clearance hole.
[0014] Furthermore, there are three button adjustment holes and three adjustment knob screws, with each adjustment knob screw corresponding to one of the button adjustment holes.
[0015] Furthermore, the outer walls of the upper cover, the middle cylinder, and the lower pad are all provided with clearance slots, and the clearance slots are interconnected.
[0016] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows: The upper pressing and lower pushing device for assembling an electrical isolation adapter of this utility model, after sequentially placing the various components of the electrical isolation adapter to be assembled into the housing assembly, can cooperate with the second pin by squeezing the first pin, thereby quickly and synchronously assembling the various components of the electrical isolation adapter to be assembled together, quickly forming a usable electrical isolation adapter, ensuring reliability, improving yield and efficiency, and avoiding the problem of ceramic ferrule end face being damaged due to multiple pressing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an upper pressing and lower pushing device for assembling an electrical isolation adapter according to this utility model;
[0018] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the upper and middle cover;
[0019] Figure 3 yes Figure 1 Sectional view;
[0020] Figure 4 yes Figure 3 Front view;
[0021] Figure 5 yes Figure 4 Enlarged view of a portion of area A in the middle.
[0022] In the diagram: 1-Upper cover, 2-Middle cylinder, 3-Lower pad, 4-Base, 5-Exhaust hole, 6-Button adjustment hole, 7-Adjustment knob screw, 8-Allowing groove, 9-Upper sealing block, 10-Lower sealing block, 11-First clearance hole, 12-Second clearance hole, 13-Through hole, 14-First ejector pin, 15-Guide sleeve, 16-Cap tube, 17-Sleeve, 18-Upper seat, 19-Lower seat, 20-Ceramic insert, 21-Second ejector pin, 22-Spring, 23-Accommodation hole, 24-Third clearance hole. Detailed Implementation
[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0024] Please refer to Figures 1 to 5 The present invention provides an upper pressure and lower push device for assembling an electrically isolated adapter, including a housing assembly and an electrically isolated adapter to be assembled, wherein the electrically isolated adapter to be assembled is located inside the housing assembly, and the housing assembly is used to quickly assemble the electrically isolated adapter.
[0025] It should be noted here that, for ease of explanation, the electrical isolation adapter to be assembled in this embodiment is not the assembled device, but rather the individual components before assembly. The device in this embodiment is designed to quickly assemble the individual components to form a complete electrical isolation adapter.
[0026] In this embodiment, the electrical isolation adapter to be assembled refers to the various unassembled components, including, from top to bottom, the cap tube 16, the sleeve 17, the upper body 18, the lower body 19, and the ceramic ferrule 20. Each of the individual components is located inside the housing assembly. In this way, the individual components can be assembled quickly, effectively, and with a high pass rate through the housing assembly to form a complete electrical isolation adapter product.
[0027] Furthermore, the outer casing assembly includes, from top to bottom, an upper cover 1, a middle cylinder 2, and a lower pad 3, wherein an upper sealing block 9 is provided between the upper cover 1 and the middle cylinder 2, and a lower sealing block 10 is provided between the middle cylinder 2 and the lower pad 3.
[0028] The upper end of the upper sealing block 9 is located inside the lower end of the upper cover 1, and the outer wall of the upper end of the upper sealing block 9 is in contact with the inner wall 1 of the lower end of the upper cover 1. The lower end face of the upper sealing block 9 is detachably and fixedly connected to the upper end face of the middle cylinder 2, and the upper end face of the middle cylinder 2 is also detachably and fixedly connected to the lower end face of the upper cover 1.
[0029] The lower sealing block 10 is located inside the lower end of the middle cylinder 2, and the upper end of the lower sealing block 10 is detachably and fixedly connected to the lower end of the middle cylinder 2, and the lower end is detachably and fixedly connected to the upper end face of the lower pad 3. The upper end face of the lower pad 3 is also detachably and fixedly connected to the lower end face of the middle cylinder 2.
[0030] The upper sealing block 9 has a receiving hole 23 at the center of its upper end. The lower end of the lower seat 19 is received in the receiving hole 23, and the lower end of the lower seat 19 abuts against the upper end face of the upper sealing block 9. The upper end of the lower seat 19 is located above the upper sealing block 9.
[0031] The upper cover 1 has a through hole 13 at the center of the upper end. The lower end of the through hole 13 extends to the lower end face of the upper cover 1. The upper seat 18 is located inside the lower end of the upper cover 1, and the upper end of the upper seat 18 is accommodated inside the lower end of the through hole 13, while the lower end is located above the upper end of the lower seat 19.
[0032] The outer wall of the upper cover 1 is symmetrically provided with several button adjustment holes 6. Each button adjustment hole 6 is connected to the lower end of the through hole 13. Each button adjustment hole 6 is provided with a threaded adjustment knob screw 7. One end of each adjustment knob screw 7 located in the corresponding button adjustment hole 6 abuts against the upper outer wall of the upper seat 18, and the other end is located outside the corresponding button adjustment hole 6. In this way, the upper seat 18 can be relatively fixed by the adjustment knob screw 7 abutting against the upper outer wall of the upper seat 18.
[0033] Preferably, in this embodiment, there are three button adjustment holes 6 and three adjustment knob screws 7, with each adjustment knob screw 7 corresponding to one of the button adjustment holes 6.
[0034] Furthermore, each adjustment knob screw 7 is fixedly provided with a handwheel at one end outside the corresponding button adjustment hole 6, and the corresponding adjustment knob screw 7 can be adjusted by the handwheel.
[0035] The lower end of the ceramic insert 20 is housed inside the lower seat 19, and the upper end is housed inside the upper seat 18. The lower end of the sleeve 17 is fitted onto the outer wall of the upper end of the ceramic insert 20, and the outer wall of the lower end of the sleeve 17 contacts the inner wall of the upper end of the upper seat 18. At the same time, the lower end of the sleeve 17 abuts against the upper end of the upper seat 18. The cap tube 16 is fitted onto the outer wall of the upper end of the sleeve 17, and the lower end of the cap tube 16 abuts against the upper end of the upper seat 18. At the same time, the outer wall of the lower end of the cap tube 16 contacts the inner wall of the upper end of the upper seat 18, and the outer wall of the upper end of the cap tube 16 contacts the inner wall of the through hole 13.
[0036] It should be noted that the lower outer wall of the ceramic ferrule 20 is interference-fitted with the inner wall of the lower seat 19, which allows the ceramic ferrule 20 to be tightly connected to the lower seat when pressure is applied. Similarly, the upper outer wall of the ceramic ferrule 20 is interference-fitted with the lower inner wall of the sleeve 17, the upper outer wall of the sleeve 17 is interference-fitted with the inner wall of the cap tube 16, and the outer wall of the cap tube 16 is interference-fitted with the inner wall of the through hole 13. This allows the upper end of the ceramic ferrule 20 to be tightly connected with the sleeve 17, the cap tube 16, and the upper seat 18 when pressure is applied, thus forming a complete electrical isolation adapter.
[0037] A guide sleeve 15 is provided inside the through hole 13. The upper end of the guide sleeve 15 abuts against the upper surface of the upper cover 1, and the lower outer wall contacts the inner wall of the through hole 13. A first ejector pin 14 is provided inside the guide sleeve 15. The upper end of the first ejector pin 14 is located above the upper cover 1, and the lower end extends into the sleeve 17 after passing through the guide sleeve 15 and the through hole 13 and is located above the upper end of the ceramic insert 20. In this way, when the upper end of the first ejector pin 14 is subjected to downward pressure, the lower end of the first ejector pin 14 can be pushed to squeeze the ceramic insert 20.
[0038] It should be noted that the upper cover 1 is provided with an exhaust hole 5, which is connected to the interior of the lower end of the upper cover 1. This is mainly to prevent the first ejector pin 14 from forming a high-pressure zone inside the lower end of the upper cover 1 when it is squeezed.
[0039] The inner cavity of the middle cylinder 2 is provided with a second ejector pin 21. The upper end of the second ejector pin 21 extends from bottom to top through the lower end of the upper sealing block 9 into the receiving hole 23 and is located below the lower end of the ceramic insert 20. The lower end extends through the lower sealing block 10 into the interior of the lower pad body 3. A spring 22 is sleeved on the second ejector pin 21. The upper end of the spring 22 abuts against the upper end of the second ejector pin 21, and the lower end abuts against the upper surface of the lower sealing block 10.
[0040] Furthermore, a base 4 is provided below the lower pad 3, and a groove is provided on the upper end surface of the base 4. The lower end of the lower pad 3 is accommodated in the groove, and the lower end of the lower pad 3 is in fixed contact with the bottom of the groove. At the same time, a third clearance hole 24 is provided at the center of the lower sealing block 10, a first clearance hole 11 is provided at the center of the lower pad 3, and a second clearance hole 12 is provided at the center of the groove. The axes of the third clearance hole 24, the first clearance hole 11, and the second clearance hole 12 coincide with each other. The lower end of the second ejector pin 21 extends through the third clearance hole 24 into the first clearance hole 11.
[0041] It should be noted that since some electrical isolation adapters are equipped with optical fibers, clearance slots 8 can be provided on the outer walls of the upper cover 1, the middle cylinder 2, and the lower pad 3, and the clearance slots 8 can be interconnected. In this way, when the electrical isolation adapter to be assembled is equipped with optical fibers, these clearance slots 8 can be used to avoid the optical fibers.
[0042] The working method of the upper and lower push device for assembling an electrically isolated adapter in this embodiment is as follows: When it is necessary to assemble the product, each component is placed in its corresponding position in sequence. Then, an external device applies downward pressure to the upper end of the first ejector pin 14. Subsequently, the first ejector pin moves downward to press against the ceramic ferrule 20, and the ceramic ferrule 20 moves downward, thereby assembling the components together through an interference fit. At the same time, when the ceramic ferrule 20 moves downward, the second ejector pin is squeezed by the lower end of the ceramic ferrule 20. Due to the action of the spring, the ceramic ferrule 20 is prevented from descending.
[0043] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.
[0044] Where there is no conflict, the above embodiments and features described herein can be combined with each other.
[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pressing and pushing device for assembling an electrically isolated adapter, characterized in that: Includes the housing assembly and the electrically isolated adapter to be assembled; wherein, The outer casing assembly includes, from top to bottom, an upper cover (1), a middle cylinder (2), and a lower pad (3). An upper sealing block (9) is provided between the upper cover (1) and the middle cylinder (2). The upper outer wall of the upper sealing block (9) is connected to the lower inner wall of the upper cover (1), and the lower outer wall is connected to the upper inner wall of the middle cylinder (2). A receiving hole (23) is provided at the center of the upper end of the upper sealing block (9), and the lower end of the electrical isolation adapter to be assembled is housed within the receiving hole (23). A through hole (13) is provided at the center of the upper end of the upper cover (1), and a first ejector pin (14) is provided inside the upper end of the through hole (13). The lower end of the first ejector pin (14) passes through the through hole (13) from top to bottom and connects with the electrical isolation adapter to be assembled. The upper end of the electrical isolation adapter is in contact. A lower sealing block (10) is provided between the middle cylinder (2) and the lower pad (3). The upper outer wall of the lower sealing block (10) is connected to the lower inner wall of the middle cylinder (2), and the lower end is connected to the upper end of the lower pad (3). A second ejector pin (21) is provided inside the middle cylinder (2). The upper end of the second ejector pin (21) passes through the receiving hole (23) from bottom to top and contacts the lower end of the electrical isolation adapter to be assembled. The lower end passes through the lower sealing block (10) and extends into the lower pad (3). A spring (22) is sleeved on the outer wall of the second ejector pin (21). The upper end of the spring (22) abuts against the upper end of the second ejector pin (21), and the lower end abuts against the upper end of the lower sealing block (10).
2. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 1, characterized in that: The electrical isolation adapter to be assembled includes, from bottom to top, a lower body (19), an upper body (18), and a cap tube (16). The lower end of the lower body (19) is housed in the receiving hole (23), and the upper end is provided with a ceramic ferrule (20). The lower end of the upper body (18) is sleeved on the upper end of the ceramic ferrule (20), and the upper end is housed in the lower end of the through hole (13). The outer wall of the lower end of the cap tube (16) is connected to the upper body. The upper inner wall of the seat (18) is fitted and the upper end is located in the through hole (13). The cap tube (16) is provided with a sleeve (17). The lower end of the sleeve (17) is fitted on the upper end of the ceramic insert (20) and the outer wall is fitted with the inner wall of the upper seat (18). The upper outer wall is fitted with the upper inner wall of the cap tube (16). The lower end of the first ejector pin (14) is located in the sleeve (17) and contacts the upper end of the ceramic insert (20).
3. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 2, characterized in that: The upper end of the second ejector pin (21) contacts the lower end of the ceramic insert (20).
4. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 2, characterized in that: The upper end of the through hole (13) is provided with a guide sleeve (15). The upper end of the guide sleeve (15) abuts against the upper end face of the upper cover (1), and the lower end outer wall is in contact with the lower end inner wall of the through hole (13). The first ejector pin (14) is located inside the guide sleeve (15).
5. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 2, characterized in that: The outer wall of the upper cover (1) is symmetrically provided with a number of button adjustment holes (6). Each button adjustment hole (6) is connected to the through hole (13). Each button adjustment hole (6) is provided with a threaded adjustment knob screw (7). One end of each adjustment knob screw (7) located in the corresponding button adjustment hole (6) abuts against the upper outer wall of the upper seat (18), and the other end is located outside the corresponding button adjustment hole (6).
6. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 5, characterized in that: Each of the adjustment knob screws (7) has a handwheel fixedly fitted at one end outside the corresponding button adjustment hole (6).
7. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 1, characterized in that: The lower pad (3) is provided with a base (4) below it. The upper surface of the base (4) is provided with a groove. The lower end of the lower pad (3) is accommodated in the groove, and the lower end of the lower pad (3) is in fixed contact with the bottom of the groove.
8. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 7, characterized in that: The lower sealing block (10) is provided with a third clearance hole (24) at its center, the lower pad (3) is provided with a first clearance hole (11) at its center, and the groove is provided with a second clearance hole (12) at its center. The axes of the third clearance hole (24), the first clearance hole (11), and the second clearance hole (12) coincide with each other. The lower end of the second ejector pin (21) extends through the third clearance hole (24) into the first clearance hole (11).
9. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 5, characterized in that: There are three button adjustment holes (6) and three adjustment knob screws (7), with each adjustment knob screw (7) corresponding to each button adjustment hole (6).
10. The upper pressure and lower push device for assembling an electrically isolated adapter as described in claim 1, characterized in that: The outer walls of the upper cover (1), the middle cylinder (2), and the lower pad (3) are all provided with clearance slots (8), and each clearance slot (8) is interconnected.