Anti-drop hydraulic quick connector

Abstract

The utility model relates to the technical field of anti-falling devices, in particular to an anti-falling hydraulic quick connector. The anti-disengaging hydraulic quick connector comprises a male connector body, a female connector body, an outer sleeve and a connector nut, a plurality of grooves are formed in the outer side of the lower end of the male connector body in the radial direction, through holes corresponding to the grooves are formed in the female connector body, the through holes and the grooves can be connected through steel balls, and the outer sleeve is sleeved with the connector nut. An outer sleeve is arranged on the female connector in a sliding mode, and the outer sleeve is connected with the male connector through a connector nut. The outer sleeve is clamped between the male connector and the female connector for primary fixation, then the male connector and the outer sleeve are secondarily fixed through the connector nut, a quick connector anti-falling measure is added to the connector, the installation and maintenance time of a hydraulic system is remarkably shortened, and the safety and stability of the hydraulic system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-slip devices, in particular to an anti-slip hydraulic quick connector. Background Art

[0002] In modern industrial production and daily life, hydraulic systems are widely used in various mechanical equipment and devices due to their advantages such as large power transmission, flexible configuration and simple control. Therefore, the application of pipe quick connectors in hydraulic systems is extremely extensive.

[0003] The existing pipe docking device does not require any tools and can be completed by pressing with both hands. It can also maintain the seal of high-pressure fluids and is easy and quick to operate. When the joint needs to be disconnected, the outer jacket only needs to be pushed by hand to disconnect the joint. Under normal circumstances, the outer jacket remains stationary to maintain the reliability of the joint. However, under special working conditions, the outer jacket may be pushed by external forces, causing the quick connector to detach. For example, in certain high-pressure impact fluids, flowing concrete mixtures, and mud with high viscosity, the outer jacket may be pushed by the impact force of the fluid, causing the quick connector to fall off.

[0004] Therefore, it is necessary to provide an anti-drop hydraulic quick connector to solve the problems in the above-mentioned background technology. Utility Model Content

[0005] In response to the above-mentioned problems, the present application provides an anti-slip hydraulic quick connector, which is fixed once by clamping the outer sleeve between the male connector and the female connector, and then fixed twice between the male connector and the outer sleeve by a connector nut. The joint adds an anti-slip measure for the quick connector, significantly reduces the installation and maintenance time of the hydraulic system, and improves the safety and stability of the hydraulic system.

[0006] To achieve the purpose of this application, this application provides the following technical solutions:

[0007] The present application provides an anti-slip hydraulic quick connector, including: a male connector, a female connector, a sleeve and a joint nut, wherein the male connector and the female connector are both hollow inside, and a plurality of grooves are provided in the radial direction of the outer side of the lower end of the male connector, a through hole corresponding to the groove is provided in the female connector, the through hole and the groove can be connected by a steel ball, the interior of the sleeve is a cylinder arranged in a stepped manner, and a sleeve is slidably provided on the female connector, and the sleeve is connected to the male connector by a joint nut.

[0008] In a possible implementation, a one-way valve core is disposed inside the male connector and the female connector.

[0009] In a possible implementation, both the upper end of the male connector and the lower end of the female connector are provided with connector threads.

[0010] In a possible implementation, the inner diameter of the joint nut gradually increases from top to bottom, the inner upper end of the joint nut is set as a joint nut bottom hole, and the inner lower end of the joint nut is set as an internal thread.

[0011] In a possible implementation, a shoulder 1 is fixedly provided at the upper end of the outer side of the male connector.

[0012] In a possible implementation, the inner diameter of the bottom hole of the joint nut is 1-3 cm larger than the outer diameter of the joint thread, and the outer diameter of the joint thread is 2-3 cm smaller than the outer diameter of the shoulder.

[0013] In a possible implementation, the shoulder is slidably engaged and connected with the joint nut.

[0014] In a possible implementation, a thread is provided at the upper end of the outer sleeve, and the internal thread located at the lower end of the joint nut is threadedly connected to the thread.

[0015] In a possible implementation, a second shoulder is fixedly provided on the outer side of the female connector, and a plurality of axially arranged springs are fixed radially on the inner wall of the outer sleeve near the second shoulder.

[0016] The beneficial effects of the utility model are:

[0017] The utility model discloses to ensure that the male connector and the female connector are fixed once by clamping the outer sleeve between them, and then fix the male connector and the outer sleeve for a second time by the joint nut, and the joint has an anti-dropping measure for the quick joint, which on the one hand significantly reduces the installation and maintenance time of the hydraulic system and improves the working efficiency; on the other hand, it ensures that the joint can be effectively prevented from accidentally falling off even under high pressure or vibration conditions, thereby improving the safety and reliability of the system and helping to improve the stability and working efficiency of the entire hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application.

[0019] Figure 1 It is a schematic diagram of the overall top view structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall internal cross-sectional structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the connection between the male connector and the connector nut in the utility model;

[0022] Figure 4It is a schematic diagram of the connection between the female connector box and the outer sleeve in the utility model;

[0023] Figure 5 It is a schematic diagram of the top view of the joint nut in the utility model;

[0024] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the joint nut in the utility model;

[0025] Figure numerals: 1, male connector; 2, female connector; 3, outer sleeve; 4, connector nut; 5, one-way valve core; 6, steel ball; 7, spring; 8, connector thread; 9, connector nut bottom hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.

[0028] Figure 1-6 The anti-slip hydraulic quick connector provided in the embodiment of the present application includes: a male connector 1, a female connector 2, a sleeve 3 and a joint nut 4, wherein the male connector 1 and the female connector 2 are both hollow inside, and a plurality of grooves are provided in the radial direction of the outer side of the lower end of the male connector 1, and a through hole corresponding to the groove is provided in the female connector 2, and the through hole and the groove can be connected by a steel ball 6, and the steel ball 6 is rotatably set in the through hole, the interior of the sleeve 3 is a cylinder arranged in a stepped manner, and the sleeve 3 is slidably provided on the female connector 2, and the sleeve 3 is connected to the male connector 1 by a joint nut 4.

[0029] On the basis of the above scheme, when the male connector 1 and the female connector 2 are connected, the outer sleeve 3 is pushed downward to make the steel ball 6 fall into the large diameter at the top of the outer sleeve 3, the male connector 1 is inserted into the female connector 2, and then the outer sleeve 3 is loosened, and the steel ball 6 is stuck in the groove of the male connector 1. At this time, the outer sleeve 3 limits the movement of the steel ball 6, so that the male connector 1 and the female connector 3 are tightly connected, and under the action of the seal, a high-pressure seal is achieved; then the joint nut 4 is inserted into the tail end of the male connector 1, and after the male connector 1 and the female connector 2 are connected, the joint nut 4 is screwed into the outer sleeve 3 to limit the downward movement of the outer sleeve 3, thereby ensuring that the outer sleeve 3 will not be pushed downward under the action of external force, thereby achieving the purpose of preventing it from falling off;

[0030] When it is necessary to disconnect the connection between the male connector 1 and the female connector 2, first unscrew the connector nut 4 and the sleeve 3, push the sleeve 3 downward, so that the steel ball 6 falls into the large diameter at the top of the sleeve 3, and the male connector 1 is pulled out from the female connector 2 to achieve the separation between the male connector 1 and the female connector 2.

[0031] In a possible implementation, a one-way valve core 5 is disposed inside the male connector 1 and the female connector 2 .

[0032] It needs to be explained that the one-way valve core 5 is arranged between the male connector 1 and the female connector 2 mainly to ensure that the liquid can only flow in one direction to prevent the liquid from flowing back during the operation of the system; when the working device leaves the working position or the system experiences pressure fluctuations, the one-way valve core 5 can be quickly closed to prevent the liquid from flowing back, thereby maintaining the stability and reliability of the hydraulic system; the pressure of the hydraulic system can also be controlled to a certain extent by adjusting the pressure opening and closing of the one-way valve core 5.

[0033] See also Figure 2 , Figure 3 and Figure 4 In a possible implementation, the upper end of the male connector 1 and the lower end of the female connector 2 are both provided with connector threads 8.

[0034] See also Figure 5 and Figure 6 In a possible implementation, the inner diameter of the joint nut 4 gradually increases from top to bottom, the inner upper end of the joint nut 4 is set as a joint nut bottom hole 9, and the inner lower end of the joint nut 4 is set as an internal thread.

[0035] In a possible implementation, a shoulder 1 is fixedly provided at the upper end of the outer side of the male connector 1 .

[0036] In a possible implementation, the inner diameter of the bottom hole 9 of the joint nut is 1-3 cm larger than the outer diameter of the joint thread 8, and the outer diameter of the joint thread 8 is 2-3 cm smaller than the outer diameter of the shoulder 1.

[0037] In a possible implementation, the shoulder 1 is slidably engaged and connected with the joint nut 4 .

[0038] Based on the above scheme, the inner diameter of the bottom hole 9 of the joint nut is larger than the outer diameter of the joint thread 8, so that the butt nut 4 can be sleeved on the shoulder one; at the same time, the outer diameter of the joint thread 8 is smaller than and also smaller than the outer diameter of the shoulder one, so that the butt nut 4 can be stuck on the shoulder one.

[0039] See also Figure 2 and Figure 4 In a possible implementation, a thread is provided at the upper end of the outer sleeve 3, and the internal thread located at the lower end of the joint nut 4 is connected to the thread by a thread.

[0040] Based on the above scheme, after the internal thread matches the thread, the downward movement of the outer sleeve 3 is limited, thereby ensuring that the outer sleeve 3 will not separate from the male connector 1 and the female connector 2 under high pressure or vibration conditions, effectively preventing accidental detachment between the connectors, thereby improving the safety and reliability of the system, and helping to improve the stability and working efficiency of the entire hydraulic system.

[0041] See also Figure 2 and Figure 4 In one possible implementation, a shoulder 2 is fixedly provided on the outer side of the female connector 2, and a plurality of axially arranged springs 7 are radially fixed to the inner wall of the outer sleeve 3 near the shoulder 2, so as to facilitate the first docking and limiting of the male connector 1 and the female connector 2 through the outer sleeve 3 and the subsequent disassembly.

[0042] In specific implementation, when the male connector 1 and the female connector 2 are connected, the outer sleeve 3 is pushed down, the spring 7 contracts, and the steel ball 6 falls into the large diameter at the top of the outer sleeve 3. The male connector 1 is inserted into the female connector 2, and then the outer sleeve 3 is loosened, and the steel ball 6 is stuck in the groove of the male connector 1. Then the joint nut 4 is inserted into the tail end of the male connector 1. After the male connector 1 and the female connector 2 are connected, the joint nut 4 is screwed into the outer sleeve 3 to limit the downward movement of the outer sleeve 3; when the connection needs to be disconnected, the joint nut 4 is first unscrewed from the outer sleeve 3, and then the outer sleeve 3 is pushed. The spring 7 contracts, causing the steel ball 6 to fall into the large diameter at the top of the outer sleeve 3, and the male connector 1 can be pulled out of the female connector 2 to disconnect the male connector 1 and the female connector 2.

[0043] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.

Claims

1. Anti-drop hydraulic quick connector, characterized in that: include: A male connector (1), a female connector (2), a sleeve (3) and a joint nut (4), wherein the male connector (1) and the female connector (2) are both hollow inside, and a plurality of grooves are provided on the outer side of the lower end of the male connector (1) in the radial direction, and a through hole corresponding to the groove is provided inside the female connector (2), and the through hole and the groove can be connected by a steel ball (6), the interior of the sleeve (3) is a cylindrical body arranged in a stepped manner, and the sleeve (3) is slidably provided on the female connector (2), and the sleeve (3) and the male connector (1) are connected by a joint nut (4).

2. The anti-drop hydraulic quick connector according to claim 1, characterized in that: A one-way valve core (5) is disposed inside the male connector (1) and the female connector (2).

3. The anti-drop hydraulic quick connector according to claim 1, characterized in that: The upper end of the male connector (1) and the lower end of the female connector (2) are both provided with connector threads (8).

4. The anti-drop hydraulic quick connector according to claim 3, characterized in that: The inner diameter of the joint nut (4) gradually increases from top to bottom, the inner upper end of the joint nut (4) is arranged as a joint nut bottom hole (9), and the inner lower end of the joint nut (4) is arranged as an internal thread.

5. The anti-drop hydraulic quick connector according to claim 4, characterized in that: A shoulder 1 is fixedly provided at the upper end of the outer side of the male connector (1).

6. The anti-drop hydraulic quick connector according to claim 5, characterized in that: The inner diameter of the bottom hole (9) of the joint nut is 1-3 cm larger than the outer diameter of the joint thread (8), and the outer diameter of the joint thread (8) is 2-3 cm smaller than the outer diameter of the shoulder.

7. The anti-drop hydraulic quick connector according to claim 5, characterized in that: The shoulder portion 1 is slidably engaged and connected with the joint nut (4).

8. The anti-drop hydraulic quick connector according to claim 4, characterized in that: The upper end of the outer sleeve (3) is provided with a thread, and the internal thread located at the lower end of the interior of the joint nut (4) is connected to the thread via a thread.

9. The anti-drop hydraulic quick connector according to claim 1, characterized in that: A second shoulder is fixedly provided on the outside of the female joint (2), and a plurality of axially arranged springs (7) are fixedly provided in the radial direction on the inner wall of the outer sleeve (3) close to the second shoulder.

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