Convenient hand-screwing sealing structure of clamping sleeve

Abstract

The utility model provides a clamping sleeve convenient hand-screwing sealing structure which comprises a main body assembly, and the main body assembly comprises a lower shell inner connector, an annular groove, a lower shell and a threaded hole. An annular groove is formed in the outer side wall of the lower shell inner connector, the outer side wall of the lower shell inner connector is sleeved with a lower shell, and a threaded hole is formed in the lower shell. A limiting assembly is arranged in the main body assembly and comprises a fixing pin, a pin hole, a locking bolt and an ejector block. The appearance structures of the upper shell and the lower shell are designed to be triangular, a worker can stably grasp the clamping sleeve with bare hands conveniently, slipping is effectively prevented, meanwhile, the torque applied during hand screwing can be increased, and then the sealing effect of the clamping sleeve is improved. The locking bolt is rotated to be embedded into the annular groove, relative rotation between the shells is effectively prevented through a limiting mechanism between the ejector block and the fixing pin, and it is ensured that the clamping sleeve is in a stable state in the screwing process.

Description

Technical Field

[0001] This utility model relates to a sealing structure, and more particularly to a convenient hand-tightening sealing structure for ferrules, belonging to the technical field of ferrule sealing structures. Background Technology

[0002] Compression fittings are a class of essential components widely used in industry, scientific research, and laboratories. These include guard columns, in-line filters, and column tubes. Guard columns are typically used in chromatographic analysis systems as the connection between the injector and the column, effectively protecting the column from contamination by impurities in the sample and extending its lifespan. In-line filters are primarily used in liquid or gas pipelines, using built-in filter screens or membranes to filter out tiny particles, impurities, or microorganisms in the fluid in real time, ensuring fluid purity and stable system operation. Column tubes, as one of the core components of chromatographic analysis, are filled with a specific stationary phase for the separation and purification of different components in a sample. These compression fittings, with their high precision, high reliability, and ease of replacement, play an indispensable role in various analytical testing, fluid transport, and purification systems.

[0003] Conventional seals are typically tightened using tools like wrenches during installation to ensure the desired sealing effect. In some cases, for ease of operation or due to space constraints, knurled structures are designed on the exterior of the seal to increase friction and facilitate hand-tightening. However, the torque that can be applied by hand-tightening is limited, and the cylindrical shape is prone to relative rotation, leading to poor sealing performance, affecting normal equipment operation, and even posing safety hazards. Therefore, a convenient hand-tightening sealing structure with a ferrule is proposed. Utility Model Content

[0004] In view of this, the present invention provides a convenient hand-tight sealing structure for the ferrule, so as to solve or alleviate one of the technical problems existing in the prior art, and at least provide a beneficial option.

[0005] The technical solution of this utility model embodiment is implemented as follows: a convenient hand-tightening sealing structure for a ferrule includes a main component, the main component including a lower shell inner connector, an annular groove, a lower shell and a threaded hole; the outer side wall of the lower shell inner connector is provided with an annular groove, the outer side wall of the lower shell inner connector is fitted with the lower shell, and the interior of the lower shell is provided with a threaded hole.

[0006] The main body component is provided with a limiting component, which includes a fixing pin, a pin hole, a locking bolt, and a top block; the annular groove is fixedly connected to a fixing pin, which is fixedly connected to the inside of the pin hole; the threaded hole is threadedly connected to a locking bolt, and one end of the locking bolt is fixedly connected to a top block.

[0007] A further preferred embodiment: the top block is disposed inside the annular groove.

[0008] A further preferred embodiment includes an upper housing, an inner connector within the upper housing, and a core.

[0009] The upper housing is fitted with an inner connector, and the bottom of the inner connector is provided with a core. The core adopts a compression fitting structure to achieve a sealed connection with the pipeline. The self-tightening effect is generated by the conical surface fit to ensure that the seal is maintained under high pressure and wide temperature range.

[0010] A further preferred embodiment: the inner connector of the lower shell is located at the bottom of the core.

[0011] A further preferred embodiment: a first sealing ring is provided between the inner connector of the upper shell and the core.

[0012] A further preferred embodiment includes a second sealing ring provided between the inner connector of the lower shell and the core.

[0013] A further preferred embodiment: the upper shell and the lower shell are triangular.

[0014] A further preferred embodiment: the pin hole is fixedly connected to the interior of the connector inside the lower housing.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] I. This utility model designs the upper and lower shells into a triangular shape, which makes it easy for workers to grip firmly with their bare hands, effectively preventing slippage. At the same time, it can increase the torque applied when twisting by hand, thereby improving the sealing effect of the ferrule.

[0017] II. This utility model uses a rotating locking bolt to embed it into the annular groove, and utilizes the limiting mechanism between the top block and the fixing pin to effectively prevent relative rotation between the housings, ensuring that the ferrule remains stable during the tightening process.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a structural diagram of the present invention after the shell has been removed;

[0023] Figure 4 This is a structural diagram of the core and the first sealing ring of this utility model;

[0024] Figure 5 This is a structural diagram of the core and the second sealing ring of this utility model.

[0025] Reference numerals: 10. Main body assembly; 11. Upper shell; 12. Inner connector of upper shell; 13. Core; 14. Inner connector of lower shell; 15. Annular groove; 16. Lower shell; 17. Threaded hole; 18. First sealing ring; 19. Second sealing ring; 20. Limiting assembly; 21. Fixing pin; 22. Pin hole; 23. Locking bolt; 24. Top block. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figures 1-5 As shown, this utility model embodiment provides a convenient hand-tightening sealing structure for a ferrule, including a main component 10. The main component 10 includes a lower shell inner connector 14, an annular groove 15, a lower shell 16, and a threaded hole 17. The outer side wall of the lower shell inner connector 14 is provided with an annular groove 15, and the lower shell 16 is fitted onto the outer side wall of the lower shell inner connector 14. The lower shell 16 is provided with a threaded hole 17 inside.

[0029] The main body component 10 is provided with a limiting component 20, which includes a fixing pin 21, a pin hole 22, a locking bolt 23 and a top block 24; the annular groove 15 is fixedly connected to the fixing pin 21, which is fixedly connected to the inside of the pin hole 22; the threaded hole 17 is threadedly connected to the locking bolt 23, and one end of the locking bolt 23 is fixedly connected to the top block 24.

[0030] In this embodiment, specifically: the top block 24 is disposed inside the annular groove 15. By rotating the locking bolt 23, it moves into the sleeve, causing the top block 24 to be embedded inside the annular groove 15. The limiting mechanism between the top block 24 and the fixing pin 21 effectively prevents the relative rotation between the upper housing 11 and the lower housing 16, ensuring that the sleeve is in a stable state during the tightening process.

[0031] In this embodiment, specifically: the main body component 10 also includes an upper shell 11, an inner connector 12 of the upper shell, and a core 13;

[0032] The upper housing 11 is fitted with an inner connector 12. The bottom of the inner connector 12 is provided with a core 13. The inner connector 12 is used to connect to the upper housing 11. The core 13 adopts a compression fitting structure to achieve a sealed connection with the pipeline. The self-tightening effect is generated through the conical surface fit to ensure that the seal is maintained under high pressure and wide temperature range.

[0033] In this embodiment, specifically: the lower shell inner connector 14 is disposed at the bottom of the core 13, and the lower shell inner connector 14 is used to connect the lower shell 16.

[0034] In this embodiment, specifically: a first sealing ring 18 is provided between the inner connector 12 of the upper shell and the core 13, and the sealing performance of the connection between the inner connector 12 of the upper shell and the core 13 is enhanced by the first sealing ring 18.

[0035] In this embodiment, specifically: a second sealing ring 19 is provided between the inner connector 14 of the lower shell and the core 13, thereby enhancing the sealing performance of the connection between the inner connector 14 of the lower shell and the core 13.

[0036] In this embodiment, specifically: the upper shell 11 and the lower shell 16 are triangular. By designing the appearance structure of the upper shell 11 and the lower shell 16 as triangular, it is easier for the staff to grip firmly with their bare hands, effectively preventing slippage. At the same time, it can increase the torque applied when twisting by hand, thereby improving the sealing effect of the ferrule.

[0037] In this embodiment, specifically: the pin hole 22 is fixedly connected to the inside of the lower shell inner connector 14, and the shape of the pin hole 22 matches the fixing pin 21 to ensure that the fixing pin 21 can be stably inserted and fixed in the pin hole 22.

[0038] In operation, this utility model features a triangular design for the upper housing 11 and lower housing 16, which facilitates a firm grip by the operator and effectively prevents slippage. It also increases the torque applied during hand tightening, thereby improving the sealing effect of the ferrule. By rotating the locking bolt 23, it moves into the ferrule, causing the top block 24 to embed into the annular groove 15. The limiting mechanism between the top block 24 and the fixing pin 21 effectively prevents relative rotation between the upper housing 11 and the lower housing 16, ensuring that the ferrule remains stable during tightening.

[0039] The shell structure of this utility model can be designed as either a split type or an integrated type. In this embodiment, a split type structure is preferred to reduce processing costs and improve manufacturing flexibility. However, it should be noted that the structure also supports the conversion to an integrated design. The sealing performance of the ferrule assembly can be further improved through the integral molding process, thereby achieving flexible adaptation between cost control and functional requirements in different application scenarios.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A convenient hand-tight sealing structure for a ferrule, comprising a main component (10), characterized in that: The main body component (10) includes a lower shell inner connector (14), an annular groove (15), a lower shell (16), and a threaded hole (17); the lower shell inner connector (14) has an annular groove (15) on its outer side wall, the lower shell inner connector (14) is fitted with the lower shell (16), and the lower shell (16) has a threaded hole (17) inside its interior; The main body component (10) is provided with a limiting component (20) inside. The limiting component (20) includes a fixing pin (21), a pin hole (22), a locking bolt (23), and a top block (24). The annular groove (15) is fixedly connected to the fixing pin (21), which is fixedly connected to the inside of the pin hole (22). The threaded hole (17) is threadedly connected to the locking bolt (23), and one end of the locking bolt (23) is fixedly connected to the top block (24).

2. The convenient hand-tightening sealing structure for a ferrule according to claim 1, characterized in that: The top block (24) is disposed inside the annular groove (15).

3. The convenient hand-tightening sealing structure for a ferrule according to claim 1, characterized in that: The main body component (10) also includes an upper shell (11), an inner connector (12) of the upper shell, and a core (13); The upper shell (11) is fitted with an inner connector (12), and a core (13) is provided at the bottom of the inner connector (12).

4. The convenient hand-tightening sealing structure for a ferrule according to claim 3, characterized in that: The lower shell inner connector (14) is located at the bottom of the core (13).

5. The convenient hand-tightening sealing structure for a ferrule according to claim 3, characterized in that: A first sealing ring (18) is provided between the inner connector (12) of the upper shell and the core (13).

6. The convenient hand-tightening sealing structure for a ferrule according to claim 3, characterized in that: A second sealing ring (19) is provided between the inner connector (14) of the lower shell and the core (13).

7. The convenient hand-tightening sealing structure for a ferrule according to claim 3, characterized in that: The upper shell (11) and the lower shell (16) are triangular.

8. The convenient hand-tightening sealing structure for a ferrule according to claim 1, characterized in that: The pin hole (22) is fixedly connected to the inside of the connector (14) in the lower shell.

Images