Anti-winding pneumatic connector
The rotatable gas connector with a locking mechanism and O-ring seal addresses the issue of entanglement in traditional gas fittings, ensuring secure and flexible attachment and improved sealing.
Patent Information
- Application Number
- CN202422282045.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The tracheal joints of traditional pneumatic joints are fixed connections, which leads to easy wrapping during use.
The rotatable tracheal joint design is adopted, combined with the structure of hexagonal screw sleeve, locking nut, snap and retaining ring, so as to achieve a rotatable connection between the tracheal joint and the valve body, and is sealed through a combination of O-ring and retaining ring to enhance the sealing effect.
It effectively prevents the trachea from wrapping during use, improving the connection stability and sealing performance of the trachea.
Smart Images
Figure CN223105582U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the pneumatic field, and particularly relates to a pneumatic joint. Background Art
[0002] A pneumatic joint is a quick joint widely used in pneumatic tools. Its structure includes: a valve body, a ball seat screwed to the rear end of the valve body, a lock sleeve sleeved on the outer wall of the valve body, and a valve core sleeve and a valve core arranged in the valve body. A group of steel balls arranged in a circle are provided on the ball seat. A first return spring is provided in the lock sleeve, and a step cooperating with the steel balls is provided at the rear end. A second return spring is sleeved on the valve core, and an "O" - ring is arranged on the outer wall of the valve core to seal - cooperate with the inner wall of the valve core sleeve. The disadvantages of traditional pneumatic joints are: since the trachea joint at the end of the valve body is fixedly connected, during use, the trachea is prone to entanglement. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide an anti - entanglement pneumatic joint.
[0004] To solve the above problems, the technical solution adopted by the utility model includes: a valve body, a ball seat screwed onto the valve body, a lock sleeve sleeved on the outer wall of the valve body, and a valve core sleeve and a valve core arranged in the valve body. A group of first steel balls arranged in a circle are provided on the ball seat. A first return spring is provided in the lock sleeve, and a step cooperating with the first steel balls is provided at the rear end. A second return spring is sleeved on the valve core. It is characterized in that: the valve body is connected with a rotatable trachea joint through second steel balls in the rear - end steel ball groove. A positioning flange cooperating with the second steel balls is provided at the front end of the trachea joint, and an O - ring for sealing - cooperation with the trachea joint is provided on the valve core sleeve.
[0005] The anti - entanglement pneumatic joint is characterized in that: a hexagon socket head cap is connected to the trachea joint, a sheath is provided on the hexagon socket head cap, and a spring sleeve is provided at the tail of the sheath.
[0006] The anti - entanglement pneumatic joint is characterized in that: a locking nut is connected to the rear end of the hexagon socket head cap. A buckle is provided in the locking nut. The buckle has an opening and a tapered convex surface at the end. A tapered concave surface adapted to the tapered convex surface is provided in the locking nut.
[0007] The anti - entanglement pneumatic joint is characterized in that: the inner wall of the buckle is provided with reverse teeth.
[0008] The anti - entanglement pneumatic joint is characterized in that: a retaining ring is provided beside the O - ring on the valve core sleeve.
[0009] The anti - entanglement pneumatic joint is characterized in that: the retaining ring is a polytetrafluoroethylene retaining ring.
[0010] The anti-winding pneumatic joint is characterized in that a buckle positioning groove is provided in the locking nut.
[0011] The anti-entanglement pneumatic joint of the utility model has the following advantages: the air pipe joint and the valve body are rotatably connected, so that the air pipe is not easy to be entangled during use.
[0012] The utility model is further described below in conjunction with the accompanying drawings of the specification. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a cross-sectional view of the utility model anti-entanglement pneumatic connector;
[0014] Figure 2 It is an exploded view of the utility model anti-entanglement pneumatic joint;
[0015] Figure 3 It is a structural schematic diagram of the buckle of the utility model. DETAILED DESCRIPTION
[0016] Reference Figures 1-3 As shown, the anti-winding pneumatic joint of the utility model comprises a valve body 1, a steel ball seat 2 screwed on the valve body 1, a lock sleeve 3 sleeved on the outer wall of the valve body 1, and a valve core sleeve 4 and a valve core 5 arranged in the valve body 1. A group of first steel balls 6 arranged in a circumference are arranged on the steel ball seat 2. A first return spring 7 is arranged in the lock sleeve 3, and a step 8 cooperating with the first steel ball 6 is arranged at the rear end of the lock sleeve 3. A second return spring 9 is sleeved on the valve core 5. The valve body 1 is connected to a rotatable air pipe joint 12 through a second steel ball 11 in a steel ball groove 10 at the rear end, and a positioning flange 13 cooperating with the second steel ball 11 is arranged at the front end of the air pipe joint 12. An O-ring 14 sealingly cooperating with the air pipe joint 12 is arranged on the valve core sleeve 4.
[0017] Preferably, the trachea joint 12 is connected with a hexagonal screw sleeve 15, the hexagonal screw sleeve 15 is provided with a sheath 16, and the tail of the sheath 16 is provided with a spring sleeve 17. The sheath 16 and the spring sleeve 17 are used to protect the trachea.
[0018] Preferably, the rear end of the hexagonal screw sleeve 15 is connected to a locking nut 18, a buckle 19 is provided inside the locking nut 18, the buckle 19 is provided with an opening 20, and a conical convex surface 21 is provided at the end, and a conical concave surface 22 adapted to the conical convex surface 21 is provided inside the locking nut 18. When the locking nut 18 is tightened, the buckle 19 is gathered toward the center by the conical concave surface 22, so that air pipes of different calibers can be fastened to the air pipe joint 12.
[0019] Preferably, the inner wall of the buckle 19 is provided with inverted teeth 23 to prevent.
[0020] Preferably, a retaining ring 24 is provided beside the O-ring 14 corresponding to the valve core sleeve 4. The combination of the "O"-ring and the retaining ring is used for sealing, which can prevent the "O"-ring from being squeezed into the gap, avoiding the occurrence of gap biting, and thus enhancing the sealing effect of the O-ring. The retaining ring 24 is preferably a polytetrafluoroethylene (PTFE) retaining ring. The PTFE retaining ring has the characteristics of high working precision, excellent chemical resistance, no hardening or damage, wide operating temperature range, small friction, and no water absorption.
[0021] Preferably, a snap-fit positioning groove 25 is provided inside the lock nut 18 to prevent the snap 19 from falling off during disassembly and assembly.
[0022] The above does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed structure and technical content within the scope of the technical solution of the present invention to obtain equivalent embodiments with equivalent changes. However, as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. An anti-twisting pneumatic joint, comprising a valve body (1), a steel ball seat (2) screwed onto the valve body (1), a lock sleeve (3) sleeved on the outer wall of the valve body (1), and a valve core sleeve (4) and a valve core (5) arranged in the valve body (1). A group of first steel balls (6) arranged in a circumferential manner are provided on the steel ball seat (2). A first return spring (7) is arranged in the lock sleeve (3), and a step (8) cooperating with the first steel balls (6) is provided at the rear end. A second return spring (9) is sleeved on the valve core (5), and it is characterized in that: The valve body (1) is connected with a rotatable air pipe joint (12) through a second steel ball (11) in a rear-end steel ball groove (10). A positioning flange (13) adapted to the second steel ball (11) is provided at the front end of the air pipe joint (12). An O-ring (14) for sealing cooperation with the air pipe joint (12) is provided on the valve core sleeve (4).
2. The anti-tangling pneumatic joint according to claim 1, characterized in that: A hexagonal nut sleeve (15) is connected to the air pipe joint (12). A sheath (16) is provided on the hexagonal nut sleeve (15). A spring sleeve (17) is provided at the tail of the sheath (16).
3. The anti-winding pneumatic joint according to claim 2, characterized in that: A locking nut (18) is connected to the rear end of the hexagonal nut sleeve (15). A buckle (19) is provided in the locking nut (18). The buckle (19) is provided with an opening (20) and a tapered convex surface (21) at the end. A tapered concave surface (22) adapted to the tapered convex surface (21) is provided in the locking nut (18).
4. The anti-tangling pneumatic joint according to claim 3, characterized in that: The inner wall of the buckle (19) is provided with reverse teeth (23).
5. The anti-twist pneumatic joint according to claim 1, characterized in that: A retaining ring (24) is provided on the valve core sleeve (4) corresponding to the side of the O-ring (14).
6. The anti-winding pneumatic joint according to claim 5, characterized in that: The retaining ring (24) is a PTFE retaining ring.
7. The anti-tangling pneumatic joint according to claim 3, wherein: A buckle positioning groove (25) is provided in the locking nut (18).