A sleeve dispensing head structure
By designing the sleeve dispensing head structure and utilizing the combination of a pressure applicator and a glue applicator, uniform glue application is achieved, solving the problems of glue waste and poor installation in existing technologies, and improving the efficiency and effectiveness of sleeve dispensing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU XINYUGUANG TECHNOLOGY CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-21
AI Technical Summary
Existing dispensing devices use a large amount of adhesive when injecting it into the sleeve, resulting in adhesive waste and affecting the installation effect.
Design a sleeve dispensing head structure, including a pressure device and a glue applicator. The glue applicator is equipped with an annular dispensing port. The pressure device supplies glue to the glue applicator, and the glue applicator applies glue to the inner circumferential wall of the sleeve to ensure uniform glue distribution.
Reduce glue usage to avoid waste, ensure even glue distribution during ferrule installation, and improve installation efficiency.
Smart Images

Figure CN224525141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dispensing head technology, and in particular to a sleeve dispensing head structure. Background Technology
[0002] Optical adapters receive optical connectors to create optical transmission paths. Fiber optic adapters are the most widely used components in fiber optic communication systems. In the field of optical communication, fiber optic adapters are frequently used to achieve signal transmission between two fiber optic connectors. The main components of a fiber optic adapter include a semi-finished product, a sleeve for inserting the optical fiber, and metal parts. The sleeve is typically used for fiber optic splicing, enabling precise connection and protection between two optical fibers. Before inserting the optical fiber, adhesive is often injected into the sleeve to strengthen the connection between the optical fiber and the ceramic sleeve; therefore, an adhesive dispensing device is required for the dispensing operation.
[0003] In the existing technology, there is a Chinese utility model patent with publication number CN223027673U entitled "Fiber Optic Adapter Sleeve Insertion and Dispensing Device." This dispensing device uses the lifting and lowering of a relay tube to drive the dispensing tube into the fiber optic adapter sleeve body, and the adhesive is injected into the fiber optic adapter sleeve body through the dispensing tube, thus realizing automated dispensing operation. However, this dispensing device can only roughly squeeze the adhesive into the inner cavity of the sleeve during dispensing. A large amount of adhesive needs to be injected to ensure adhesive adhesion. When inserting the ferrule, a lot of adhesive is squeezed out of the sleeve, which is wasteful and affects the installation. There is an urgent need for a dispensing head that is suitable for sleeves and can dispense less adhesive and adhere evenly to the sleeve wall. Utility Model Content
[0004] The purpose of this utility model is to provide a sleeve dispensing head structure to solve the problem that when the dispensing device injects glue into the sleeve, a large amount of glue needs to be injected to achieve glue adhesion, and when the insert is installed, a lot of glue will be squeezed out, causing waste and affecting the installation.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A sleeve dispensing head structure is disclosed, which applies adhesive to the inner circumferential wall of a ceramic sleeve. The dispensing head includes a pressure device and an applicator. The lower edge diameter of the pressure device is not less than the end face diameter of the ceramic sleeve. The inlet end of the applicator is connected to the outlet end of the pressure device. The applicator is adapted to the inner cavity of the ceramic sleeve, and the applicator is provided with an annular adhesive outlet.
[0007] A further technical solution is: the glue presser includes an upper pressure plate, a telescopic glue storage tube, a lower pressure plate, a guide rod, and a spring. The telescopic glue storage tube is installed between the upper pressure plate and the lower pressure plate. The guide rod is installed on the lower pressure plate and slidably connected to the upper pressure plate. The spring is fitted on the guide rod and abuts against the upper pressure plate and the lower pressure plate respectively.
[0008] A further technical solution is: the upper pressure plate is provided with a glue inlet with a cap.
[0009] A further technical solution is that a handle is provided on the upper pressure plate.
[0010] A further technical solution is that the telescopic rubber storage tube is a corrugated hose.
[0011] A further technical solution is: the glue applicator includes a glue outlet tube, a sizing tube, and a glue outlet head. The two ends of the glue outlet tube are respectively connected to the discharge end of the glue press and the inlet end of the glue outlet head. The sizing tube is threadedly connected to the glue press.
[0012] A further technical solution is: an annular groove is provided outside the dispensing head, and a concave annular rubber strip is provided on the annular groove.
[0013] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:
[0014] This utility model proposes a sleeve dispensing head structure. The dispensing head has a pressure device that provides glue to the applicator after being pressed. The applicator uses the annular glue outlet on the outer peripheral wall to apply glue to the inner peripheral wall of the sleeve. Firstly, the amount of glue used is small, and secondly, the glue adheres to the wall evenly. During the installation of the insert, excessive glue will not be generated, reducing glue waste and facilitating the installation of the insert. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a sleeve dispensing head according to the present invention.
[0016] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the midpoint adhesive tip.
[0017] Figure 3 This utility model Figure 1 A schematic diagram of the intermediate glue applicator.
[0018] Reference numerals: 1. Ceramic sleeve; 2. Dispensing head; 3. Glue presser; 4. Glue applicator; 5. Annular glue outlet; 6. Upper pressure plate; 7. Telescopic glue storage tube; 8. Lower pressure plate; 9. Guide rod; 10. Spring; 11. Cap; 12. Handle; 13. Glue outlet tube; 14. Sizing tube; 15. Glue outlet head; 16. Annular rubber strip. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0025] This implementation example Figure 1 and Figure 2 As shown, a sleeve dispensing head structure is provided. The dispensing head 2 applies adhesive to the inner circumferential wall of the ceramic sleeve 1. The dispensing head 2 includes a pressure device 3 and an applicator 4. The lower edge diameter of the pressure device 3 is not less than the end face diameter of the ceramic sleeve 1. The feed end of the applicator 4 is connected to the discharge end of the pressure device 3. The applicator 4 is adapted to the inner cavity of the ceramic sleeve 1, and the applicator 4 is provided with an annular adhesive outlet 5.
[0026] The glue presser 3 mainly serves to store glue, supply glue to the glue applicator 4, and position the ceramic sleeve 1. That is, the glue presser 3 can store an appropriate amount of glue. The bottom of the glue presser 3 will abut against the end of the ceramic sleeve 1 and play a corresponding positioning role. Under pressure, it will squeeze the glue into the glue applicator 4. The glue applicator 4 will also enter the ceramic sleeve 1 under the positioning of the glue presser 3. On the basis of the glue supply from the glue presser 3, the glue will be coated on the inner circumferential wall of the ceramic sleeve 1 through the annular glue outlet 5 of the glue applicator 4.
[0027] Preferably, the glue presser 3 includes an upper pressure plate 6, a telescopic glue storage tube 7, a lower pressure plate 8, a guide rod 9, and a spring 10. The telescopic glue storage tube 7 is installed between the upper pressure plate 6 and the lower pressure plate 8. The guide rod 9 is installed on the lower pressure plate 8 and is slidably connected to the upper pressure plate 6. The spring 10 is fitted on the guide rod 9 and abuts against the upper pressure plate 6 and the lower pressure plate 8 respectively.
[0028] A certain amount of glue is first stored in the telescopic glue storage tube 7. The lower pressure plate 8 will abut against the end of the ceramic sleeve 1. After the upper pressure plate 6 is subjected to force, it descends along the guide rod 9, thereby compressing the telescopic glue storage tube 7. At this time, the glue in the telescopic glue storage tube 7 will be squeezed towards the glue applicator 4.
[0029] Preferably, the upper pressure plate 6 is provided with an adhesive inlet with a cover 11.
[0030] Glue can be injected into the glue presser 3 through the glue inlet, and the glue inlet is sealed with the glue cap 11.
[0031] Preferably, a handle 12 is provided on the upper pressure plate 6.
[0032] Workers can apply the glue manually using handle 12.
[0033] It is worth noting that the dispensing head 1 can also be installed on the working end of the automatic dispensing machine to achieve automated operation.
[0034] Preferably, the telescopic rubber storage tube 7 is a corrugated hose.
[0035] Corrugated hoses have a certain degree of elasticity (expansion and contraction), enabling the storage and compression of adhesives.
[0036] Preferably, such as Figure 3As shown, the glue applicator 4 includes a glue outlet tube 13, a sizing tube 14, and a glue outlet head 15. The two ends of the glue outlet tube 13 are respectively connected to the discharge end of the glue presser 3 and the feed end of the glue outlet head 15. The sizing tube 14 is threadedly connected to the glue presser 3.
[0037] The diameter of the sizing tube 14 is matched with the inner diameter of the ceramic sleeve 1, mainly to prevent the dispensing head 2 from being unstable during glue application, and the dispensing head 15 is used to disperse the glue.
[0038] Preferably, an annular groove is provided outside the dispensing head 15, and a concave annular rubber strip 16 is provided on the annular groove.
[0039] The annular rubber strip 16 expands when squeezed by the glue, and comes close to the inner wall of the ceramic sleeve 1, ensuring the glue coating effect and also playing a role in spreading the glue evenly.
[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A sleeve dispensing head structure, wherein the dispensing head (2) applies adhesive to the inner circumferential wall of a ceramic sleeve (1), characterized in that: The dispensing head (2) includes a pressure plater (3) and a glue applicator (4). The lower edge diameter of the pressure plater (3) is not less than the end face diameter of the ceramic sleeve (1). The feed end of the glue applicator (4) is connected to the discharge end of the pressure plater (3). The glue applicator (4) is adapted to the inner cavity of the ceramic sleeve (1), and the glue applicator (4) is provided with an annular glue outlet (5).
2. The sleeve dispensing head structure according to claim 1, characterized in that: The glue presser (3) includes an upper pressure plate (6), a telescopic glue storage tube (7), a lower pressure plate (8), a guide rod (9), and a spring (10). The telescopic glue storage tube (7) is installed between the upper pressure plate (6) and the lower pressure plate (8). The guide rod (9) is installed on the lower pressure plate (8) and is slidably connected to the upper pressure plate (6). The spring (10) is fitted on the guide rod (9) and abuts against the upper pressure plate (6) and the lower pressure plate (8) respectively.
3. The sleeve dispensing head structure according to claim 2, characterized in that: The upper pressure plate (6) is provided with an inlet with a cover (11).
4. The sleeve dispensing head structure according to claim 2, characterized in that: A handle (12) is provided on the upper pressure plate (6).
5. The sleeve dispensing head structure according to claim 2, characterized in that: The telescopic rubber storage tube (7) is a corrugated hose.
6. The sleeve dispensing head structure according to claim 1, characterized in that: The glue applicator (4) includes a glue outlet tube (13), a sizing tube (14), and a glue outlet head (15). The two ends of the glue outlet tube (13) are respectively connected to the discharge end of the glue presser (3) and the feed end of the glue outlet head (15). The sizing tube (14) is threadedly connected to the glue presser (3).
7. The sleeve dispensing head structure according to claim 6, characterized in that: The dispensing head (15) is provided with an annular groove, and a concave annular rubber strip (16) is provided on the annular groove.