Double-clamping-sleeve type quick-screwing straight-through connector
By designing a double-ferrule quick-connect straight connector, tool-free installation is achieved using components such as ferrule nuts and auxiliary throttles. This solves the problem that existing ferrule straight connectors require tools for rotation and fixation, improving installation efficiency and enhancing sealing performance and structural protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU SENHAO AUTOMATION EQUIPMENT CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-15
AI Technical Summary
The existing compression fitting straight connector requires tools to rotate and fix it during installation, which is inconvenient to use without tools, resulting in low installation and maintenance efficiency.
A double-clamp type quick-tight straight connector was designed, which uses components such as clamp nuts, auxiliary handles, external seats, knobs and fastening bolts. The auxiliary handle can be rotated flexibly through the movable rod. Combined with the limit base and sealing ring, it can achieve tool-free convenient installation and strong sealing.
It facilitates installation, improves installation efficiency, and extends service life through comprehensive sealing and safety protection.
Smart Images

Figure CN224245619U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of compression fitting straight connectors, specifically a double compression fitting quick-tight straight connector. Background Technology
[0002] The main functions of compression fittings include connecting and sealing pipelines to ensure unobstructed fluid flow. They are also characterized by easy installation, corrosion resistance, high pressure resistance, and temperature resistance. The compression fitting forms a seal and fastening effect with the outer wall of the steel pipe. They are suitable for hydraulic, pneumatic and other fields, eliminating the need for complex welding and greatly simplifying installation and maintenance.
[0003] The currently used compression fitting straight connector requires tools for rotation and fixation during installation. Without tools, it is inconvenient to use, delays installation and maintenance, and reduces installation efficiency.
[0004] Therefore, a novel double-ferrule quick-connect straight connector is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a double-clamp type quick-connect straight connector to solve the problem mentioned in the background art that the clamp type straight connector requires tools for rotation and fixation during installation, which is inconvenient to use without tools, delays installation and maintenance, and reduces installation efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-clamp type quick-connect straight connector, comprising a connector body, with connecting covers extending through both sides of the connector body, a first connecting seat fixedly connected to the left side of one set of connecting covers, and a second connecting seat fixedly connected to the right side of one set of connecting covers, with threaded sleeves fitted and fixedly fitted onto the outside of both the first and second connecting seats, and a convenient component for easy movement fitted onto the outside of the threaded sleeves;
[0007] The convenient component includes an auxiliary throttle, a retaining nut is sleeved on the outside of the threaded sleeve, two sets of external seats are fixedly connected to the top and bottom of the retaining nut, a movable rod is provided through the inside of the auxiliary throttle, the two ends of the movable rod are respectively movably connected to the inner ends of the two sets of external seats, a fastening bolt is provided through the inside of the two sets of external seats, and a knob is fixedly connected to the front end of the fastening bolt.
[0008] As a further technical solution of this utility model, the top and bottom ends of the outer side of the ferrule nut are fixedly connected to a limiting base. The outer end of the limiting base is provided with a placement groove. The auxiliary handle is inserted into the limiting base, and the outer side of the auxiliary handle and the inner side of the placement groove form an insertion connection. The thread on the surface of the threaded sleeve matches the thread on the inner wall of the ferrule nut.
[0009] As a further technical solution of this utility model, a sealing ring is fixedly connected to the inner wall of the connecting cover, and multiple sets of fixing seats are fixedly connected in a ring at equal intervals to the front and rear ends inside the connecting cover.
[0010] As a further technical solution of this utility model, a reinforcing inner layer is fixedly connected to the inner end of the sealing ring, and multiple sets of connecting brackets are sleeved on the outside of the sealing ring, with the outer end of the connecting brackets fixedly connected to the inner end of the fixing seat.
[0011] As a further technical solution of this utility model, a protective inner layer is fixedly connected to the inner wall of the first connecting seat and the second connecting seat, and a protective outer layer is fixedly connected to the surface of the protective inner layer. The surface of the protective inner layer and the inner wall of the first connecting seat and the second connecting seat are bonded together by the adhesive outer layer.
[0012] As a further technical solution of this utility model, a moisture-proof bottom layer is fixedly connected to the inner end of the inner protective layer, and a reinforcing outer layer is fixedly connected to the outer end of the inner protective layer.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the double-clamp type quick-connect straight connector not only achieves the functions of easy installation and strong sealing, but also achieves the function of safety protection;
[0014] (1) By setting a ferrule nut, auxiliary handle, external base, knob, fastening bolt, limiting base and movable rod, the auxiliary handle can be flexibly rotated between two sets of external bases by the movable rod, and pulled outward. The fastening bolt moves through the internal parts of the external base and the auxiliary handle to ensure the fixation of the auxiliary handle itself. The staff can easily rotate and tighten the ferrule nut by holding the auxiliary handle. By adding the limiting base, the auxiliary handle can be moved downward and installed into the placement groove by the plug-in connection method, which plays a limiting and fixing role on the outside of the auxiliary plate, and the auxiliary handle can be safely stored.
[0015] (2) By setting up a connecting cover, sealing ring, reinforcing inner layer, connecting frame and fixing seat, the two sets of connecting covers can provide all-round safety protection for the connection between the connector body and the first connecting seat and the second connecting seat. The sealing ring greatly enhances the sealing performance of the connection, effectively preventing foreign objects from entering and affecting fluid movement, and reducing damage to the connector body, the first connecting seat and the second connecting seat. The connecting frame is sleeved on the outside of the sealing ring and cooperates with the fixing seat to improve the connection force between the sealing ring and the inner wall of the connecting cover, effectively preventing the sealing ring from loosening or even falling off. At the same time, the reinforcing inner layer enhances the strength of the sealing ring itself and avoids inward depression.
[0016] (3) By setting a protective inner layer, an adhesive surface layer, a reinforced outer layer and a moisture-proof bottom layer, the inner walls of the first and second connecting seats are both equipped with a protective inner layer, which can provide all-round protection for the inner walls of the first and second connecting seats. The adhesive surface layer is used to strengthen the adhesion of the protective inner layer surface, effectively preventing the protective inner layer from falling off. The reinforced outer layer and the moisture-proof bottom layer work together to play a dual role of reinforcement and moisture protection, effectively extending the service life of the overall structure. Attached Figure Description
[0017] Figure 1 This is a front view structural diagram of the present utility model;
[0018] Figure 2 This is a top view schematic diagram of the ferrule nut of this utility model;
[0019] Figure 3 This is a side view of the connecting outer cover structure of this utility model;
[0020] Figure 4 This is a side view of the first connecting seat of this utility model.
[0021] In the diagram: 1. Connector body; 2. Connecting cover; 3. Threaded sleeve; 4. First connecting seat; 5. Compression nut; 6. Auxiliary throttle; 7. Knob; 8. Second connecting seat; 9. Limiting base; 10. External seat; 11. Placement groove; 12. Movable rod; 13. Fastening bolt; 14. Fixed seat; 15. Sealing ring; 16. Connecting frame; 17. Reinforced inner layer; 18. Protective inner layer; 19. Adhesive surface layer; 20. Reinforced outer layer; 21. Moisture-proof bottom layer. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 A double-clamp type quick-connect straight connector includes a connector body 1. Both sides of the connector body 1 are provided with connecting covers 2. A first connecting seat 4 is fixedly connected to the left side of a set of connecting covers 2, and a second connecting seat 8 is fixedly connected to the right side of a set of connecting covers 2. Threaded sleeves 3 are fixedly fitted on the outside of both the first connecting seat 4 and the second connecting seat 8. Convenient components for easy movement are fitted on the outside of the threaded sleeves 3.
[0024] The convenient components include an auxiliary throttle 6, a retaining nut 5 that is sleeved on the outside of the threaded sleeve 3, two sets of external seats 10 that are fixedly connected to the top and bottom of the retaining nut 5, a movable rod 12 that is passed through the inside of the auxiliary throttle 6, and the two ends of the movable rod 12 that are movably connected to the inner ends of the two sets of external seats 10 respectively. Fastening bolts 13 that are passed through the inside of the two sets of external seats 10, and a knob 7 that is fixedly connected to the front end of the fastening bolts 13.
[0025] The top and bottom ends of the ferrule nut 5 are fixedly connected to the limiting base 9. The outer end of the limiting base 9 is laterally provided with a placement groove 11. The auxiliary handle 6 is inserted into the limiting base 9, and the outside of the auxiliary handle 6 and the inside of the placement groove 11 form an insertion connection. The thread on the surface of the threaded sleeve 3 matches the thread on the inner wall of the ferrule nut 5.
[0026] Specifically, such as Figure 1 and Figure 2 As shown, during use, the movable rod 12 rotates flexibly between the two sets of external seats 10, pulls the auxiliary handle 6 outward to a vertical position, and rotates the knob 7 in sequence to move the fastening bolt 13 through the interior of the external seat 10 and the auxiliary handle 6, fixing the auxiliary handle 6 in the current position. The operator holds the two sets of auxiliary handles 6 and moves and tightens the ferrule nut 5.
[0027] A sealing ring 15 is fixedly connected to the inner wall of the connecting outer cover 2, and multiple sets of fixing seats 14 are fixedly connected in an annular manner at equal intervals at the front and rear ends inside the connecting outer cover 2.
[0028] The inner end of the sealing ring 15 is fixedly connected to a reinforcing inner layer 17, and the outer side of the sealing ring 15 is provided with multiple sets of connecting brackets 16, the outer end of the connecting bracket 16 being fixedly connected to the inner end of the fixing seat 14.
[0029] Specifically, such as Figure 1 and Figure 3 As shown, during use, the two sets of connecting covers 2 provide all-round safety protection for the connection between the connector body 1 and the first connecting seat 4 and the second connecting seat 8. The sealing ring 15 greatly enhances the sealing performance of the connection, effectively preventing foreign objects from entering and affecting fluid movement, and reducing damage to the connector body 1, the first connecting seat 4 and the second connecting seat 8. The connecting bracket 16 is sleeved on the outside of the sealing ring 15 and cooperates with the fixing seat 14 to improve the connection force between the sealing ring 15 and the inner wall of the connecting cover 2, effectively preventing the sealing ring 15 from loosening or even falling off. At the same time, the reinforced inner layer 17 enhances the strength of the sealing ring 15 itself and prevents it from sinking inward.
[0030] A protective inner layer 18 is fixedly connected to the inner wall of the first connecting seat 4 and the second connecting seat 8. A protective inner layer 19 is fixedly connected to the surface of the protective inner layer 18. The surface of the protective inner layer 18 and the inner wall of the first connecting seat 4 and the second connecting seat 8 are bonded together by the adhesive surface 19.
[0031] A moisture-proof bottom layer 21 is fixedly connected to the inner end of the inner protective layer 18, and a reinforcing outer layer 20 is fixedly connected to the outer end of the inner protective layer 18.
[0032] Specifically, such as Figure 1 and Figure 4 As shown, when in use, a protective inner layer 18 is added to the inner wall of both the first connecting seat 4 and the second connecting seat 8, which can provide all-round protection for the inner wall of the first connecting seat 4 and the second connecting seat 8. The adhesive surface layer 19 is used to strengthen the adhesive force of the protective inner layer 18, effectively preventing the protective inner layer 18 from falling off. The reinforced outer layer 20 and the moisture-proof bottom layer 21 work together to play a dual role of reinforcement and moisture protection, effectively extending the service life of the overall structure.
[0033] Working principle: When in use, the movable rod 12 rotates flexibly between the two sets of external seats 10, pulling the auxiliary handle 6 outward to a vertical position. After rotating the knob 7 in sequence, the fastening bolt 13 moves through the interior of the external seat 10 and the auxiliary handle 6, fixing the auxiliary handle 6 in the current position. The operator holds the two sets of auxiliary handles 6 to move and tighten the clamp nut 5. The two sets of connecting covers 2 provide all-round safety protection for the connection between the connector body 1 and the first connecting seat 4 and the second connecting seat 8. The sealing ring 15 greatly enhances the sealing performance of the connection, effectively preventing foreign objects from entering and affecting fluid movement, and reducing damage to the connector body 1, the first connecting seat 4 and the second connecting seat 8. The connecting frame 16 is sleeved on the outside of the sealing ring 15 and cooperates with the fixed seat 14 to improve the connection force between the sealing ring 15 and the inner wall of the connecting cover 2. The inner walls of the first connecting seat 4 and the second connecting seat 8 are both added with protective inner layers 18, which can provide all-round protection for the inner walls of the first connecting seat 4 and the second connecting seat 8.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A double-ferrule quick-connect fitting, comprising a fitting body (1), characterized in that: Both sides of the connector body (1) are provided with connecting covers (2). A first connecting seat (4) is fixedly connected to the left side of a set of connecting covers (2), and a second connecting seat (8) is fixedly connected to the right side of a set of connecting covers (2). Threaded sleeves (3) are fixedly fitted on the outside of the first connecting seat (4) and the second connecting seat (8). Convenient components for easy movement are fitted on the outside of the threaded sleeves (3). The convenient component includes an auxiliary throttle (6), a retaining nut (5) is sleeved on the outside of the threaded sleeve (3), two sets of external seats (10) are fixedly connected to the top and bottom of the retaining nut (5), a movable rod (12) is provided through the inside of the auxiliary throttle (6), the two ends of the movable rod (12) are movably connected to the inner ends of the two sets of external seats (10), and fastening bolts (13) are provided through the inside of the two sets of external seats (10), and a knob (7) is fixedly connected to the front end of the fastening bolt (13).
2. The connector according to claim 1, characterized in that: The top and bottom ends of the ferrule nut (5) are fixedly connected to a limiting base (9). The outer end of the limiting base (9) is provided with a placement groove (11). The auxiliary throttle (6) is inserted into the limiting base (9), and the outside of the auxiliary throttle (6) and the inside of the placement groove (11) are connected by an insertion. The thread on the surface of the threaded sleeve (3) matches the thread on the inner wall of the ferrule nut (5).
3. The connector according to claim 1, characterized in that: The inner wall of the connecting cover (2) is fixedly connected with a sealing ring (15), and multiple sets of fixing seats (14) are fixedly connected in a ring at equal intervals at the front and rear ends inside the connecting cover (2).
4. The connector according to claim 3, characterized in that: The inner end of the sealing ring (15) is fixedly connected to a reinforcing inner layer (17), and the outer side of the sealing ring (15) is provided with multiple sets of connecting brackets (16), the outer end of the connecting brackets (16) being fixedly connected to the inner end of the fixing seat (14).
5. The connector according to claim 1, characterized in that: A protective inner layer (18) is fixedly connected to the inner wall of the first connecting seat (4) and the second connecting seat (8). A protective outer layer (19) is fixedly connected to the surface of the protective inner layer (18). The surface of the protective inner layer (18) is bonded to the inner wall of the first connecting seat (4) and the second connecting seat (8) through the adhesive outer layer (19).
6. The straight connector according to claim 5, characterized in that: The inner end of the protective inner layer (18) is fixedly connected to a moisture-proof bottom layer (21), and the outer end of the protective inner layer (18) is fixedly connected to a reinforcing outer layer (20).