A new type of anti-detachment quick connector
By introducing an anti-slip mechanism into the rotary joint, and utilizing threaded connection and clamping plate limiting structure, the problem of easy slippage between the steel ball seat and the water pipe is solved, achieving a stable connection of the joint and improving its operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU ARMTECH FLUID TECH CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-06-30
Smart Images

Figure CN224433695U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quick coupling technology, specifically a novel anti-detachment quick coupling. Background Technology
[0002] A rotary joint is a pipe connection device that allows the connected pipes to rotate relative to each other. It can be used to transmit various media such as gas, liquid, and oil. The application fields of rotary joints cover almost all processing and manufacturing industries, such as metallurgy, machine tools, power generation, petroleum, rubber, plastics, textiles, printing and dyeing, pharmaceuticals, cigarettes, papermaking, food, and feed processing. Common rotary joints include hydraulic rotary joints, high-pressure rotary joints, multi-channel rotary joints, high-speed rotary joints, high-temperature rotary joints, single-channel rotary joints, special-purpose rotary joints, LED-specific rotary joints, excavator-specific rotary joints, and machine tool-specific rotary joints.
[0003] According to the Chinese patent publication number "CN201434173Y", an ultra-high pressure quick connector is disclosed, comprising a threaded sleeve, a steel ball seat, a shell, a sealing sleeve, and a valve core. The shell, steel ball seat, and threaded sleeve are on the same axis. The shell is connected to the steel ball seat by a spring I on the outside. The steel ball seat and the threaded sleeve are threadedly connected. The valve core and the steel ball seat have a conical surface line contact at the contact point. There is a groove in the middle of the conical surface of the valve core, and an O-ring is installed in the groove. The sealing sleeve is slidably connected to the steel ball seat. A retaining ring is provided at the corresponding position of the groove on the steel ball seat and the sealing sleeve. A spring II is loosely fitted outside the valve core. The spring II is located between the sealing sleeve and the steel ball seat. This utility model has high output pressure, good sealing performance, and a switching function.
[0004] When the steel ball seat of the above-mentioned connector is connected to the water pipe, the outer shell and the steel ball seat can still slide, which makes it easy for the operator to detach the steel ball seat from the water pipe during use, affecting the stability of the water pipe connection. Therefore, a new type of anti-detachment quick connector is proposed to solve the above-mentioned problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a new type of anti-detachment quick connector to address the shortcomings of the prior art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a novel anti-detachment quick connector, including a female head, an anti-detachment shell fixedly installed on the female head, an anti-detachment mechanism provided on the anti-detachment shell, a connector shell threadedly connected to the anti-detachment shell, and a male head rotatably connected inside the connector shell through a bearing;
[0007] The anti-detachment mechanism includes a storage cavity and a push block. The push block is disposed inside the storage cavity. A guide post is fixedly installed inside the storage cavity. A guide groove is provided on the push block. The upper end of the guide post is inserted into the guide groove. A spring is sleeved on the guide post. A locking plate is fixedly installed at the bottom of the push block. A locking hole is provided on the connector shell. The locking plate is locked into the locking hole.
[0008] Preferably, the storage cavity is located on the anti-detachment shell, the card plate has a through hole, and the guide post passes through the interior of the through hole, so that the guide post can pass through the card plate.
[0009] Preferably, the bottom of the push block is provided with a spring groove, the upper end of the spring abuts against the inside of the spring groove, and the lower end of the spring abuts against the inner wall of the storage cavity. The spring groove can limit the movement of the spring.
[0010] Preferably, there are two locking holes, which are respectively opened on the upper and lower sides of the outer wall of the connector shell. The locking holes enable the locking plate to position the connector shell.
[0011] Preferably, there are two clamping plates, which are respectively disposed on the upper and lower sides of the anti-detachment shell, and the clamping plates can limit the position of the connector shell.
[0012] Preferably, the outer wall of the anti-detachment shell is provided with external threads, and the inner wall of the connector shell is provided with internal threads, so that the anti-detachment shell and the connector shell can be connected by the threads.
[0013] The present invention adopts the above technical solution, which can bring the following beneficial effects:
[0014] This new type of anti-detachment quick connector, when connected to the anti-detachment shell, involves rotating the connector shell to engage the threaded connection with the anti-detachment shell. During the rotation of the connector shell, the user presses the button, causing the protrusion of the clamping plate to retract into the storage cavity. After the connector shell is rotated into position, the button is released, causing it to move upward under the action of the spring and drive the clamping plate upward, so that the protrusion of the clamping plate is locked in the locking hole on the connector shell, thus limiting the position of the connector shell and preventing the quick connector from becoming loose after long-term use, which would affect the stability of the water pipe connection. This improves the practicality of the quick connector. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a partial cross-sectional structural diagram of the present invention;
[0017] Figure 3 for Figure 2Enlarged schematic diagram of the structure at point A in the middle;
[0018] Figure 4 This is a schematic diagram of the anti-shell removal structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the connector shell structure of this utility model.
[0020] In the diagram: 1. Female head; 2. Anti-detachment mechanism; 201. Storage cavity; 202. Press block; 203. Guide groove; 204. Guide post; 205. Spring; 206. Spring groove; 207. Clamping plate; 208. Through hole; 209. Clamping hole; 3. Anti-detachment shell; 4. Connector shell; 5. Male head; 6. External thread; 7. Internal thread. Detailed Implementation
[0021] 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.
[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.
[0025] Please see Figure 1-5The technical solution of this utility model is as follows: a new type of anti-detachment quick connector, including a female head 1, an anti-detachment shell 3 fixedly installed on the female head 1, an anti-detachment mechanism 2 provided on the anti-detachment shell 3, a connector shell 4 threadedly connected to the anti-detachment shell 3, and a male head 5 rotatably connected inside the connector shell 4 through a bearing.
[0026] The anti-detachment mechanism 2 includes a storage cavity 201 and a push block 202. The push block 202 is disposed inside the storage cavity 201. A guide post 204 is fixedly installed inside the storage cavity 201. A guide groove 203 is provided on the push block 202. The upper end of the guide post 204 is inserted into the guide groove 203. A spring 205 is sleeved on the guide post 204. A retaining plate 207 is fixedly installed at the bottom of the push block 202. A retaining hole 209 is provided on the connector shell 4. The retaining plate 207 is engaged inside the retaining hole 209. When the connector shell 4 is connected to the anti-detachment shell 3, rotating the connector shell 4 causes the threaded connection to be engaged. On the unpacking 3, during the rotation of the connector shell 4, the user presses the button 202, causing the protrusion of the exposed locking plate 207 to be hidden in the storage cavity 201. After the connector shell 4 is rotated into place, the button 202 is released, causing the button 202 to move upward under the action of the spring 205 and drive the locking plate 207 to move upward, so that the protrusion of the locking plate 207 is locked in the locking hole 209 on the connector shell 4, limiting the connector shell 4 and preventing the connector shell 4 from becoming loose after long-term use, which would affect the stability of the water pipe connection and improve the practicality of the quick connector.
[0027] The storage cavity 201 is opened on the anti-detachment shell 3, and the card plate 207 has a through hole 208. The guide post 204 passes through the interior of the through hole 208. The through hole 208 allows the guide post 204 to pass through the card plate 207.
[0028] The bottom of the push block 202 is provided with a spring groove 206. The upper end of the spring 205 abuts against the inside of the spring groove 206, and the lower end of the spring 205 abuts against the inner wall of the storage cavity 201. The spring groove 206 can limit the position of the spring 205.
[0029] There are two locking holes 209, which are respectively opened on the upper and lower sides of the outer wall of the connector shell 4. The locking plate 207 can be used to position the connector shell 4 by setting the locking holes 209.
[0030] There are two clamping plates 207, which are respectively set on the upper and lower sides of the anti-detachment shell 3. The clamping plates 207 can limit the connection shell 4.
[0031] The outer wall of the anti-detachment shell 3 is provided with an external thread 6, and the inner wall of the connector shell 4 is provided with an internal thread 7. The anti-detachment shell 3 and the connector shell 4 can be connected by the thread.
[0032] Working principle: When the connector shell 4 is connected to the anti-detachment shell 3, the connector shell 4 is rotated to make the threaded connection on the anti-detachment shell 3. During the rotation of the connector shell 4, the user presses the button 202, so that the protrusion of the clamping plate 207 exposed outside is hidden in the storage cavity 201. After the connector shell 4 is rotated into place, the button 202 is released, so that the button 202 moves upward under the action of the spring 205 and drives the clamping plate 207 to move upward, so that the protrusion of the clamping plate 207 is locked in the clamping hole 209 on the connector shell 4, which limits the connector shell 4 and prevents the connector shell 4 from loosening after long-term use, which affects the stability of water pipe connection, thus improving the practicality of the quick connector.
[0033] This utility model provides a novel anti-detachment quick connector. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.
Claims
1. A novel anti-detachment quick connector, comprising a female connector (1), characterized in that: The female head (1) is fixedly installed with an anti-detachment shell (3), the anti-detachment shell (3) is provided with an anti-detachment mechanism (2), the anti-detachment shell (3) is threadedly connected with a connector shell (4), and the inside of the connector shell (4) is rotatably connected with a male head (5) through a bearing; The anti-detachment mechanism (2) includes a storage cavity (201) and a push block (202). The push block (202) is disposed inside the storage cavity (201). A guide post (204) is fixedly installed inside the storage cavity (201). A guide groove (203) is provided on the push block (202). The upper end of the guide post (204) is inserted into the guide groove (203). A spring (205) is sleeved on the guide post (204). A locking plate (207) is fixedly installed at the bottom of the push block (202). A locking hole (209) is provided on the connector shell (4). The locking plate (207) is locked inside the locking hole (209).
2. The novel anti-detachment quick connector according to claim 1, characterized in that: The storage cavity (201) is opened on the anti-detachment shell (3), and the card plate (207) has a through hole (208). The guide post (204) passes through the interior of the through hole (208).
3. The novel anti-detachment quick connector according to claim 1, characterized in that: The bottom of the push block (202) is provided with a spring groove (206), the upper end of the spring (205) abuts against the inside of the spring groove (206), and the lower end of the spring (205) abuts against the inner wall of the storage cavity (201).
4. The novel anti-detachment quick connector according to claim 1, characterized in that: The number of the card holes (209) is two, and the two card holes (209) are respectively opened on the upper and lower sides of the outer wall of the connector shell (4).
5. A novel anti-detachment quick connector according to claim 1, characterized in that: The number of the card plates (207) is two, and the two card plates (207) are respectively arranged on the upper and lower sides of the anti-detachment shell (3).
6. A novel anti-detachment quick connector according to claim 1, characterized in that: The outer wall of the anti-detachment shell (3) is provided with external threads (6), and the inner wall of the connector shell (4) is provided with internal threads (7).