Quick connector connecting mechanism of hydraulic power unit
By introducing auxiliary sealing components and limiting components into the quick coupling of the hydraulic power unit, the problems of seal failure and vibration loosening are solved, achieving efficient sealing and stable connection, and improving the reliability of the hydraulic system.
Patent Information
- Application Number
- CN202520589685.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Traditional hydraulic power unit quick couplings have seals that are prone to failure and lack a secondary sealing compensation mechanism. The mechanical snap-fit design is also prone to loosening under vibration, posing a risk of leakage and pipeline detachment.
The design employs a combination of auxiliary sealing components and limiting components, including sealing rings, drive rings, and limiting rings, to achieve secondary sealing and rigid locking. Springs provide elastic preload, and the angled design of the limiting block prevents misoperation.
It improves sealing performance, reduces leakage rate, enhances vibration resistance, prevents accidental disconnection, and improves connection stability and safety.
Smart Images
Figure CN223754928U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of connecting piece, especially relates to the quick connector connection mechanism of hydraulic power unit. BACKGROUND
[0002] As the core power transmission component in the field of engineering machinery, aerospace and the like, the sealing property and reliability of the pipeline connection of the hydraulic power unit directly affect the safety of equipment operation, and the quick connector, as a key element of the pipeline connection of the hydraulic system, needs to meet the stringent requirements of high frequency plugging, high pressure sealing, anti-vibration and anti-loosening.
[0003] However, the conventional quick connector relies on a single sealing ring to achieve sealing, and the single-stage sealing ring is prone to failure under high pressure or medium pollution, and lacks a secondary sealing compensation mechanism, so that the leakage rate significantly increases after long-term use; at the same time, the existing anti-loosening structure generally adopts a mechanical buckle design, and relies on a single locking mode of spring steel balls, which is prone to loosening under continuous vibration or impact load, and there is a risk of pipeline disconnection, which poses a risk of accidental unlocking and reduces the stability of the quick connector.
[0004] Therefore, the utility model provides a quick connector connection mechanism of hydraulic power unit to solve the above problems. SUMMARY
[0005] The utility model aims at providing a quick connector connection mechanism of hydraulic power unit, which solves the problems of single-stage sealing failure and vibration loosening in the prior art through the cooperation of the auxiliary sealing assembly and the limiting assembly.
[0006] To solve the above technical problems, the utility model is implemented through the following technical solutions.
[0007] The utility model is a quick connector connection mechanism of hydraulic power unit, which comprises a female connector and a male connector, and the female connector and the male connector are used in cooperation; the surface of the male connector is provided with an auxiliary sealing assembly, the auxiliary sealing assembly comprises a sealing ring sleeved on the surface of the male connector, a groove opened on one side of the sealing ring, a driving ring arranged in the inner cavity of the groove, a driving wheel fixedly connected to one side of the driving ring, a driving block arranged in the inner cavity of the groove, an extension rod fixedly connected to one side of the driving block, an arc-shaped pressing piece fixedly connected to the other end of the extension rod, a sealing groove opened on the inner side of the sealing ring, and a sealing ring arranged in the inner cavity of the sealing groove, and the secondary sealing function of the connector connection is realized through the auxiliary sealing assembly; the surface of the female connector is provided with a limiting assembly, the limiting assembly comprises a limiting ring sleeved on the surface of the female connector, a limiting groove opened on the inner side of the limiting ring, a fixing groove opened on the surface of the limiting ring, a first spring fixedly connected in the inner cavity of the fixing groove, and a limiting block fixedly connected to the other end of the first spring, and the surface sliding piece of the female connector is safely locked through the limiting assembly.
[0008] The utility model further sets up, the extension rod one end is penetrated to the sealed groove inner chamber and is connected with the one side fixed connection of arc pressure tablet, the extension rod surface is equipped with the second spring, the second spring one end is connected with the one side fixed connection of drive block, the other end of second spring is connected with the recess inner chamber fixed connection, through setting up the second spring, under the action of the second spring, drive block can reset upwards, convenient late separation joint.
[0009] The utility model further sets up, drive wheel, drive block and arc pressure tablet quantity all are six, and one to one correspondence, the sealed ring surface is provided with friction block, the limit ring surface is provided with indication arrow, through setting up friction block, convenient operator manual rotation sealed ring, through setting up indication arrow, convenient prompting operator limit component's release method.
[0010] The utility model further sets up, the drive block surface is fixedly connected with the baffle ring, the baffle ring one side is fixedly connected with the guide rod.
[0011] The utility model further sets up, the guide rod quantity is six, the guide rod one end is spherical design, through guide rod one end is spherical design, the guide rod and drive ring contact surface can smoothly slide in the feeding process of sealed ring, improve drive ring service life.
[0012] The utility model further sets up, the sealed ring inside is equipped with internal thread, the male joint surface is equipped with external thread, through the cooperation of internal thread and external thread, realize the screw feed movement of sealed ring, make it fast movement to joint connecting place, simple operation.
[0013] The utility model further sets up, the limit block and limit groove quantity all are five, the limit block is close to female joint surface connector one side is right angle design, and other three faces are inclined angle design.
[0014] The utility model has the following beneficial effects.
[0015] 1. The utility model discloses a secondary sealing structure is provided with, when initial insertion, the sealed structure in female joint and male joint interior realizes primary sealing, after rotating sealed ring, drive ring pushes arc pressure tablet extruding sealing ring through extension rod, forms radial secondary pressure sealing, effectively compensates sealed structure wear or medium pressure fluctuation, effectively reduces leakage rate, and the second spring provides elastic pre-tightening force, makes arc pressure tablet automatic adjustment pressure tightly with sealing ring wear, improves sealing effect.
[0016] 2. The utility model discloses a limit component is provided with, and the limit block is in the slipperiness piece in place through the first spring and is bounced into the limit groove, forms rigid right angle face lock, promotes anti-vibration ability, and the inclined angle design of limit block allows one-way unlocking, prevents accidental operation and leads to accidental disengagement.
[0017] Of course, any product implementing the present application does not necessarily need to achieve all the advantages mentioned above simultaneously. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced.
[0019] Figure 1 It is a perspective view of the quick connector connecting mechanism of the hydraulic power unit.
[0020] Figure 2 It is an exploded view of the quick connector connecting mechanism of the hydraulic power unit.
[0021] Figure 3 It is an exploded view of the sealing ring and the male connector in the quick connector connecting mechanism of the hydraulic power unit.
[0022] Figure 4 It is an exploded view of the limiting ring and the female connector in the quick connector connecting mechanism of the hydraulic power unit.
[0023] Figure 5 It is a sectional view of the sealing ring in the quick connector connecting mechanism of the hydraulic power unit.
[0024] In the drawings: 1, female connector; 2, male connector; 3, sealing ring; 4, groove; 5, driving ring; 6, driving wheel; 7, driving block; 8, extension rod; 9, arc-shaped pressing sheet; 10, sealing groove; 11, sealing ring; 12, limiting ring; 13, limiting groove; 14, fixing groove; 15, first spring; 16, limiting block; 17, second spring; 18, stop ring; 19, guide rod; 20, internal thread; 21, external thread; 22, friction block; 23, indicating arrow. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. The described embodiments are only some of the embodiments of the present application, not all.
[0026] Embodiment 1
[0027] Please refer to Figures 1-5The utility model discloses a quick -coupling connection mechanism of hydraulic power unit, including female joint 1 and male joint 2, female joint 1 is used in cooperation with male joint 2, the surface of male joint 2 is provided with auxiliary sealing assembly, and auxiliary sealing assembly includes the sealing ring 3 of setting in the surface of male joint 2, the recess 4 of setting in one side of sealing ring 3, the drive ring 5 of setting in the inner chamber of recess 4, is fixedly connected with the drive wheel 6 with one side of drive ring 5, the drive block 7 of setting in the inner chamber of recess 4, the extension rod 8 of being fixedly connected with one side of drive block 7, the arc-shaped tablet 9 of being fixedly connected with the other end of extension rod 8, the sealing groove 10 of setting in the inner side of sealing ring 3, the sealing ring 11 of setting in the inner chamber of sealing groove 10, realize secondary sealing function at the joint connection place through auxiliary sealing assembly, the surface of female joint 1 is provided with limiting component, and limiting component includes the limiting ring 12 of setting in the surface of female joint 1, the limiting groove 13 of setting in the inner side of limiting ring 12, the fixed groove 14 of setting in the surface of limiting ring 12, the first spring 15 of being fixedly connected in the inner chamber of fixed groove 14, the limiting block 16 of being fixedly connected with the other end of first spring 15, and the surface sliding piece of female joint 1 is carried out safe lock buckle through limiting component.
[0028] Further supplement: female joint 1 and male joint 2 are all existing plug-in type quick couplings, which are prior art, and the present scheme will not be described in detail, and the skilled in the art can clearly know the working principle, the material of sealing ring 11 is made of high elasticity and corrosion-resistant material, which ensures the sealing effect of the connection between female joint 1 and male joint 2, one side of limiting ring 12 is slidably connected with the surface sliding piece of female joint 1 through a sliding block and a sliding groove, which belongs to prior art and will not be described in detail, to ensure that limiting ring 12 maintains a certain degree of rotational freedom during the axial movement of the sliding piece, facilitating the release of the limiting in the later period.
[0029] Example 2
[0030] Please refer to Figures 1-5 On the basis of example 1, one end of extension rod 8 penetrates into the inner chamber of sealing groove 10 and is fixedly connected with one side of arc-shaped tablet 9, a second spring 17 is sleeved on the surface of extension rod 8, one end of second spring 17 is fixedly connected with one side of drive block 7, the other end of second spring 17 is fixedly connected with the inner chamber of recess 4, the number of drive wheel 6, drive block 7 and arc-shaped tablet 9 is six, and they are one-to-one corresponding, a friction block 22 is arranged on the surface of sealing ring 3, an indicating arrow 23 is arranged on the surface of limiting ring 12, a stop ring 18 is fixedly connected with one side of drive block 7, a guide rod 19 is fixedly connected with one side of stop ring 18, the number of guide rod 19 is six, one end of guide rod 19 is designed as a spherical shape, an internal thread 20 is arranged on the inner side of sealing ring 3, an external thread 21 is arranged on the surface of male joint 2, the number of limiting block 16 and limiting groove 13 is five, one side of limiting block 16 close to the surface connecting piece of female joint 1 is designed as a right angle, and the other three sides are designed as an inclined angle.
[0031] Further supplement: by setting the second spring 17, under the action of the second spring 17, the driving block 7 can be reset upwards, facilitating the separation of the joint in the later period, by setting the friction block 22, the operator can manually rotate the sealing ring 3, by setting the indicating arrow 23, the operator can be reminded of the dismounting method of the limiting assembly, by designing the one end of the guide rod 19 as a spherical shape, the guide rod 19 and the driving ring 5 contact surface can smoothly slide during the feeding process of the sealing ring 3, the service life of the driving ring 5 is improved, by the cooperation of the internal thread 20 and the external thread 21, the screw feeding motion of the sealing ring 3 is realized, so that it is quickly moved to the joint connection, and the operation is simple.
[0032] The working principle of the utility model is that the operator directly inserts the female joint 1 and the male joint 2, the female joint 1 inner cavity sealing ring 11 is deformed under pressure, initial sealing is formed, the surface sliding part of the female joint 1 slides to one side during the insertion process, at this time, it drives the limiting ring 12 to move, when the sliding part moves to the limit position, the limiting block 16 is popped out to the outside by the action of the first spring 15 on the limiting block 16, so that it is clamped with the limiting groove 13 inside the limiting groove 13, the sliding part is limited, the sliding part is prevented from loosening in the vibration environment, and the pipeline shake-off accident is caused.
[0033] Then the sealing ring 3 is rotated, the sealing ring 3 is moved to the joint connection under the screw feeding motion of the cooperation of the internal thread 20 and the external thread 21, in this process, the guide rod 19 moves the driving wheel 6 by driving the driving ring 5, the driving wheel 6 moves the extension rod 8 by driving the driving block 7, the extension rod 8 extrudes the sealing ring 11 at the joint connection by the arc-shaped pressing piece 9, and the joint connection is sealed twice.
[0034] When separating, the sealing ring 3 is rotated in reverse, the arc-shaped pressing piece 9 is reset by the action of the second spring 17 on the driving block 7, then the sealing ring 11 is reset by moving with the sealing ring 3, then only the limiting ring 12 is rotated, the limiting ring 12 drives the limiting block 16 to compress the corresponding first spring 15, the limiting of the limiting ring 12 is released, which can be realized, and the operation is simple.
[0035] The above only describes certain exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways, therefore, the above drawings and description are illustrative in nature, and should not be understood as the limitation of the protection scope of the utility model claims.
Claims
1. Quick coupling connection mechanism of a hydraulic power unit, comprising a female coupling (1) and a male coupling (2), characterized in that: The female joint (1) is used in cooperation with the male joint (2); The surface of the male joint (2) is provided with an auxiliary sealing assembly, the auxiliary sealing assembly comprises a sealing ring (3) sleeved on the surface of the male joint (2), a groove (4) opened on one side of the sealing ring (3), a driving ring (5) arranged in the inner cavity of the groove (4), a driving wheel (6) fixedly connected with one side of the driving ring (5), a driving block (7) arranged in the inner cavity of the groove (4), an extension rod (8) fixedly connected with one side of the driving block (7), an arc-shaped pressing piece (9) fixedly connected with the other end of the extension rod (8), a sealing groove (10) opened on the inner side of the sealing ring (3), and a sealing ring (11) arranged in the inner cavity of the sealing groove (10), so as to realize the secondary sealing function of the joint connection through the auxiliary sealing assembly; The surface of the female joint (1) is provided with a limiting assembly, the limiting assembly comprises a limiting ring (12) sleeved on the surface of the female joint (1), a limiting groove (13) opened on the inner side of the limiting ring (12), a fixing groove (14) opened on the surface of the limiting ring (12), a first spring (15) fixedly connected in the inner cavity of the fixing groove (14), and a limiting block (16) fixedly connected with the other end of the first spring (15), so as to safely lock the sliding member on the surface of the female joint (1) through the limiting assembly.
2. The hydraulic power unit quick coupling connection mechanism of claim 1, wherein: One end of the extension rod (8) penetrates into the inner cavity of the sealing groove (10) and is fixedly connected with one side of the arc-shaped pressing piece (9), a second spring (17) is sleeved on the surface of the extension rod (8), one end of the second spring (17) is fixedly connected with one side of the driving block (7), and the other end of the second spring (17) is fixedly connected with the inner cavity of the groove (4).
3. The hydraulic power unit quick coupling connection mechanism of claim 1, wherein: The number of the driving wheel (6), the driving block (7) and the arc-shaped pressing piece (9) is six, and they are one-to-one corresponding, a friction block (22) is arranged on the surface of the sealing ring (3), and an indicating arrow (23) is arranged on the surface of the limiting ring (12).
4. The hydraulic power unit quick coupling connection mechanism of claim 1, wherein: A blocking ring (18) is fixedly connected on the surface of the driving block (7), and a guide rod (19) is fixedly connected on one side of the blocking ring (18).
5. The quick union connection mechanism of the hydraulic power unit according to claim 4, characterized in that: The number of the guide rod (19) is six, and one end of the guide rod (19) is designed in a spherical shape.
6. The hydraulic power unit quick coupling connection mechanism of claim 1, wherein: An inner thread (20) is opened on the inner side of the sealing ring (3), and an outer thread (21) is opened on the surface of the male joint (2).
7. The hydraulic power unit quick coupling connection mechanism of claim 1, wherein: The number of the limiting block (16) and the limiting groove (13) is five, one side of the limiting block (16) close to the surface of the female joint (1) is designed in a right angle, and the other three sides are designed in an inclined angle.