A quick-detachable oil pipe nozzle connector

By using a moving block and a steel ball self-locking structure for the oil pipe nozzle connector, the problem of cumbersome disassembly of the oil pipe and nozzle connector is solved, enabling rapid disassembly and installation, improving operational efficiency and sealing performance, and reducing maintenance costs.

CN224944460UActive Publication Date: 2026-11-06MIANYANG HUABO PRECISION MACHINING CO LTD
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Patent Information

Application Number
CN202522702437.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-19
Publication Date
2026-11-06
Estimated Expiration
2035-12-19

AI Technical Summary

Technical Problem

The existing oil pipe and nozzle connectors are cumbersome to disassemble and install during frequent replacement and cleaning, and repeated tightening causes thread wear, affecting the sealing performance. The flange connection is complicated to operate and cannot be quickly disassembled.

Method used

It adopts a self-locking structure that combines a moving block with a steel ball, and uses bolts to connect the fixing block. Combined with rubber rings and threaded slots, it enables quick connection and disassembly, ensuring a tight seal.

Benefits of technology

It enables quick disassembly and installation, reduces maintenance costs, improves operational efficiency, ensures sealing and reliability, and facilitates standardized production and inventory management of parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of oil pipe technology, specifically a quick-detachable oil pipe nozzle connector, including a first pipe fitting. A second pipe fitting is connected to the left side of the first pipe fitting via a connecting pipe. A fixing block is inserted inside the right side of the second pipe fitting. A steel ball is engaged on the second pipe fitting. Movable blocks are inserted into the upper ends of both the second and first pipe fittings, and bolts are inserted into the upper ends of the movable blocks. Two sets of mounting plates are fixedly connected to the upper right side of the second pipe fitting. A rotating rod is connected to the side of the two sets of mounting plates that are close to each other, and the lower end of the rotating rod abuts against a locking block. The lower end of the locking block is connected to the second pipe fitting via a spring. This design achieves pipe fitting connection by setting the thread of the connecting rod and the threaded slot of the second pipe fitting. Combined with a rubber ring, it effectively seals the leakage of internal fluid. During maintenance, the pipe fittings can be separated for internal maintenance of both the first and second pipe fittings, and installation is also easy.
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Description

Technical Field

[0001] This utility model relates to the field of oil pipe technology, specifically to a quick-detachable oil pipe nozzle connector. Background Technology

[0002] In the field of industrial fluid transport, especially in hydraulic systems, lubrication systems and cleaning equipment, a reliable connection between the hose and the nozzle is crucial.

[0003] In existing technologies, the connection between the oil pipe and the nozzle is mostly achieved by direct threading or flange bolt fixing. Although the threaded connection is simple in structure, the disassembly and installation process is cumbersome, time-consuming and labor-intensive in situations where the nozzle needs to be frequently replaced and cleaned. Moreover, repeated tightening can easily lead to thread wear and affect the sealing performance. The flange connection requires the use of tools to tighten multiple bolts, which is more complicated and cannot be quickly disassembled. To address these issues, we propose a quick-disassembly oil pipe-nozzle connection to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a quick-detachable oil pipe nozzle connector to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-detachable oil pipe nozzle connector, comprising a first pipe, a second pipe connected to the left side of the first pipe via a connecting pipe, a fixing block inserted inside the right side of the second pipe, a steel ball engaged on the second pipe, a movable block inserted at the upper end of both the second and first pipes, and a bolt inserted at the upper end of the movable block, two sets of mounting plates fixedly connected to the upper right side of the second pipe, a rotating rod connected to the side of the two sets of mounting plates that are close to each other, and the lower end of the rotating rod abutting against a locking block, the lower end of the locking block being connected to the second pipe via a spring.

[0006] Preferably, the outer surface of the connecting pipe is uniformly distributed with threads, the second pipe fitting has a threaded slot that mates with the connecting pipe, and a rubber ring is provided at the end where the first pipe fitting and the second pipe fitting intersect; the connecting pipe is connected to the first pipe fitting through the threaded slot of the second pipe fitting, and the rubber ring ensures its sealing performance.

[0007] Preferably, steel balls are evenly distributed on both the first and second pipe fittings, and both the first and second pipe fittings have grooves that cooperate with the steel balls. The steel balls are movably engaged in the grooves, and the inner side of the steel balls abuts against the fixing block. After the steel balls are pushed up by the fixing block, multiple steel balls can effectively withstand the pressure and push the fixing block backward, and the steel balls fall down to achieve separation.

[0008] Preferably, the fixing block is arranged in a ring structure and inserted into the second pipe fitting. The left side of the fixing block is arranged in a beveled structure. The outer side of the fixing block abuts against the steel ball. The outer surface of the fixing block is evenly distributed with protrusions. The second pipe fitting has a groove that matches the protrusions. The beveled structure of the fixing block reduces the complexity of the structure and realizes the self-locking function of the steel ball through a simple structure.

[0009] Preferably, both the first and second pipe fittings are fixedly connected to mounting plates, and a rotating rod is rotatably connected to the mounting plates. The rotating rod is configured with an inverted V-shaped structure, and the lower end of the rotating rod abuts against the locking block. Both the second and first pipe fittings are provided with slots that cooperate with the locking block, and the lower end of the spring is fixedly connected to the slots. The rotating rod acts as a lever, amplifying the moving force into downward pressure, easily compressing the spring and pushing the locking block.

[0010] Preferably, rubber rings are provided at both ends of the first and second pipe fittings; the rubber rings can reduce the rigid friction between the first and second pipe fittings.

[0011] Preferably, the movable block is fixedly installed in the slot of the second pipe fitting by bolts, and both the movable block and the second pipe fitting have slots that cooperate with the bolts; when the internal structure of the pipe fitting is damaged, the movable block can be removed by bolts, and the fixed block can be taken out from the side of the second pipe fitting and the first pipe fitting that are close to each other for maintenance.

[0012] This utility model provides a quick-detachable oil pipe nozzle connector, which has the following advantages:

[0013] This solution achieves the connection function by setting a movable block and a steel column. The movable block is connected to the fixed block by bolts, and the fixed block is locked in conjunction with the locking block to achieve the self-locking function after connection. The overall operation is simple, requires no other tools, takes very little time, and has high operating efficiency.

[0014] This solution connects the pipe fittings by setting the thread of the connecting rod to the threaded slot of the second pipe fitting. With the help of the rubber ring, it can effectively seal the leakage of internal fluid, ensuring sealing and reliability. During maintenance, the pipe fittings can be separated to maintain the inside of the first and second pipe fittings. It is also easy to install.

[0015] This solution uses a detachable movable block to house the parts within an openable tube. When maintenance is required, there is no need to scrap the entire connector; only the internal parts need to be replaced, resulting in extremely low maintenance costs. This modular design also facilitates standardized production and inventory management of parts while maximizing the service life of the main structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is an exploded view of the components of this utility model;

[0019] Figure 3 This is an exploded view of the components of this utility model;

[0020] Figure 4 This is an exploded structural diagram of the components of this utility model.

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0022] In the diagram: 1. First pipe fitting; 2. Second pipe fitting; 3. Connecting pipe; 4. Fixing block; 5. Steel ball; 6. Moving block; 7. Bolt; 8. Mounting plate; 9. Rotating rod; 10. Locking block; 11. Spring. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 This utility model provides a technical solution: a quick-detachable oil pipe nozzle connector, including a first pipe 1, a second pipe 2 connected to the left side of the first pipe 1 via a connecting pipe 3, a fixing block 4 inserted inside the right side of the second pipe 2, a steel ball 5 engaged on the second pipe 2, a movable block 6 inserted at the upper end of both the second pipe 2 and the first pipe 1, and a bolt 7 inserted at the upper end of the movable block 6, two sets of mounting plates 8 fixedly connected to the upper right side of the second pipe 2, a rotating rod 9 connected to the side of the two sets of mounting plates 8 that are close to each other, and the lower end of the rotating rod 9 abutting against a locking block 10, the lower end of the locking block 10 being connected to the second pipe 2 via a spring 11.

[0025] The outer surface of the connecting pipe 3 is evenly distributed with threads. The second pipe fitting 2 has a threaded slot that mates with the connecting pipe 3, and a rubber ring is provided at the end where the first pipe fitting 1 and the second pipe fitting 2 intersect. The threads of the connecting pipe 3 and the threaded slot, along with the rubber ring, provide double sealing protection and connection guidance. The threaded connection between the connecting pipe 3 and the second pipe fitting 2 constitutes a mechanical seal, which can effectively withstand the fluid pressure inside the pipe. The rubber ring provided at the mating end face of the first pipe fitting 1 and the second pipe fitting 2 constitutes a second flexible seal, which can compensate for minor deviations in processing and installation and prevent leakage. The threaded connection structure between the connecting pipe 3 and the second pipe fitting 2 is mainly used for subsequent maintenance of the internal parts of the first pipe fitting 1 and the second pipe fitting 2.

[0026] Both the first fitting 1 and the second fitting 2 have steel balls 5 evenly distributed on them, and both the first fitting 1 and the second fitting 2 have grooves that cooperate with the steel balls 5. The steel balls 5 are movably engaged in the grooves, and the inner side of the steel balls 5 abuts against the fixing block 4. The evenly distributed steel balls 5 achieve extremely high engagement strength. When the steel balls 5 are pushed out by the fixing block 4, the steel balls 5 are engaged on the outer end of the pipe wall. The fixing block 4 is self-locked by the moving block 6 and the locking block 10, realizing the connection between the oil pipe nozzle connector and the second fitting 2. The connection is simple to install. The ends of the first fitting 1 and the second fitting 2 that are far apart are provided with sealing rubber rings, and the sealing rubber rings are engaged on the first fitting 1 and the second fitting 2.

[0027] The fixing block 4 is arranged in a ring structure and inserted into the second pipe fitting 2. The left side of the fixing block 4 is arranged in a bevel structure. The outer side of the fixing block 4 abuts against the steel ball 5. The outer surface of the fixing block 4 is evenly distributed with protrusions. The second pipe fitting 2 is provided with a groove that matches the protrusions. By moving the moving block 6 connected to the bolt 7 at the left end, the steel ball 5 abutting the outer side of the fixing block 4 is pushed into the groove, thereby achieving connection with the inner wall of the oil pipe. The operation is simple and can be quickly installed and disassembled, which improves work efficiency.

[0028] Mounting plates 8 are fixedly connected to both the first pipe fitting 1 and the second pipe fitting 2. A rotating rod 9 is rotatably connected to the mounting plate 8. The rotating rod 9 is designed with an inverted V-shape. The lower end of the rotating rod 9 abuts against the locking block 10. Both the second pipe fitting 2 and the first pipe fitting 1 have slots that cooperate with the locking block 10. The lower end of the spring 11 is fixedly connected in the slot. The locking block 6 is locked by setting the locking block 10 and the spring 11. At the same time, the locking block 10 can withstand the pressure of the fluid in the pipe wall, so that the steel ball 5 is in the slot in the inner wall of the oil pipe, realizing the connection function. When the second pipe fitting 2 is withdrawn, one end of the rotating rod 9 is pressed. When the rotating rod 9 is subjected to downward pressure, it rotates around the axis. The other end presses down on the locking block 10, so that it squeezes the spring 11 and withdraws into the pipe wall. The moving block 6 moves in the direction of the withdrawable fixed block 4. The steel ball 5 loses the support of the moving block 6 and returns to the groove in the pipe, realizing the withdrawal of the second pipe fitting 2. The operation is convenient and can be quickly disassembled.

[0029] Both ends of the first fitting 1 and the second fitting 2 are equipped with rubber rings. The rubber rings at both ends of the connector form an efficient sealing barrier. The rubber rings at the ends of the first fitting 1 and the second fitting 2 that are far apart from each other can effectively seal the pipes and oil nozzles connected to the fittings, preventing water from entering the fittings through the gaps in the steel balls, thus preventing leakage.

[0030] The movable block 6 is inserted into the slot of the second pipe fitting 2. The movable block 6 is fixedly installed in the slot of the second pipe fitting 2 by bolts 7. Both the movable block 6 and the second pipe fitting 2 have slots that cooperate with the bolts 7. First, press the rotating rod 9 so that the rotating rod 9 presses down on the locking block 10. At the same time, the locking block 10 moves downward so that the top of the locking block 10 is parallel to the inside of the second pipe fitting 2, so that the movable block 6 moves to the right. At the same time, the movable block 6 pushes the locking block 10 to the right. Since the lower end of the movable block 6 is connected to the fixed block 4 by bolts 7, the movable block 6 drives the fixed block 4 to move to the right, so that the fixed block 4 can be unlocked. The upper end of the locking block 10 abuts against the second pipe fitting 2, so that the fixed block 4 can be disassembled from the second pipe fitting 2 for maintenance of the inside of the second pipe fitting 2. The installation and disassembly are convenient.

[0031] Working principle: The fixed block 4 is placed into the second pipe fitting 2. After the threaded slot is visible in the groove of the second pipe fitting 2, the movable block 6 is connected to the fixed block 4 by bolts 7. It is connected to the second pipe fitting 2 through the connecting pipe 3. The second pipe fitting 2 is inserted into the pipe wall connected to the oil pipe nozzle, pushing the movable block 6 to move towards the center of the second pipe fitting 2. The movable block 6 is connected to the fixed block 4 by bolts 7. The movable block 6 drives the fixed block 4 to move towards the center. The steel ball 5 is pressed into the groove by the resistance of the fixed block 4. After the spring 11 enters the groove, it is released and drives the locking block. 10 rises and self-locks. The rotating rod 9 is fixed in position by the friction of the rubber ring at the hinge. The lower end of the rotating rod 9 abuts against the upper end of the locking block 10 to limit it from popping out. When removing the pipe fitting, press the rotating rod 9. When the rotating rod 9 is subjected to downward pressure, it rotates around the axis. The other end of the rotating rod 9 is forced downward to drive the locking block 10 to press down the spring 11, pressing the locking block 10 into the slot. If necessary, move the moving block 6 backward. When maintaining or replacing, remove the bolt 7 and the moving block 6, and pull out the fixing block 4 to maintain and replace the internal parts.

[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick disconnect tubing spool connector comprising a first tubular member (1) characterised in that: The left side of the first pipe fitting (1) is connected to the second pipe fitting (2) via a connecting pipe (3). A fixing block (4) is inserted inside the right side of the second pipe fitting (2). A steel ball (5) is engaged on the second pipe fitting (2). A moving block (6) is inserted at the upper end of both the second pipe fitting (2) and the first pipe fitting (1). A bolt (7) is inserted at the upper end of the moving block (6). Two sets of mounting plates (8) are fixedly connected to the upper right side of the second pipe fitting (2). A rotating rod (9) is connected to the side of the two sets of mounting plates (8) that are close to each other. The lower end of the rotating rod (9) abuts against the locking block (10). The lower end of the locking block (10) is connected to the second pipe fitting (2) via a spring (11).

2. The quick-detachable oil pipe nozzle connector according to claim 1, characterized in that: The outer surface of the connecting pipe (3) is evenly distributed with threads, and the second pipe fitting (2) is provided with a threaded slot that matches the connecting pipe (3).

3. The quick-detachable oil pipe nozzle connector according to claim 1, characterized in that: Steel balls (5) are evenly distributed on the first pipe fitting (1) and the second pipe fitting (2), and the first pipe fitting (1) and the second pipe fitting (2) are provided with slots that cooperate with the steel balls (5). The steel balls (5) are movably engaged in the slots, and the inner side of the steel balls (5) abuts against the fixing block (4).

4. The quick-detachable oil pipe nozzle connector according to claim 1, characterized in that: The fixing block (4) is arranged in a ring structure and inserted into the second pipe (2). The left side of the fixing block (4) is arranged in a sloping structure. The outer side of the fixing block (4) abuts against the steel ball (5). The outer surface of the fixing block (4) is evenly distributed with protrusions. The second pipe (2) is provided with a slot that matches the protrusions.

5. The quick-detachable oil pipe nozzle connector according to claim 1, characterized in that: The first pipe fitting (1) and the second pipe fitting (2) are both fixedly connected to an installation plate (8). A rotating rod (9) is rotatably connected to the installation plate (8). The rotating rod (9) is arranged in an inverted V-shape. The lower end of the rotating rod (9) abuts against the locking block (10). The second pipe fitting (2) and the first pipe fitting (1) are both provided with a slot that cooperates with the locking block (10). The lower end of the spring (11) is fixedly connected in the slot.

6. The quick-detachable oil pipe nozzle connector according to claim 1, characterized in that: Rubber rings are provided at both the left and right ends of the first pipe fitting (1) and the second pipe fitting (2).

7. The quick-detachable oil pipe nozzle connector according to claim 1, characterized in that: The movable block (6) is fixedly installed in the slot of the second pipe (2) by bolts (7). Both the movable block (6) and the second pipe (2) have slots that cooperate with the bolts (7).