Hydraulic quick-change connector male head floating mechanism
By designing a floating mechanism for the male end of a hydraulic quick-change connector, and utilizing a combination of a male end bracket and a limit bolt, the problem of docking failure caused by misalignment of the male and female ends was solved, improving docking reliability and equipment adaptability, and reducing the risk of connector damage.
Patent Information
- Application Number
- CN202520584512.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-31
AI Technical Summary
When existing hydraulic quick-connect couplings are automatically connected, the positional deviation between the male and female ends exceeds the floating range, leading to connection failure or even damage to the coupling, which affects work efficiency and equipment operation stability.
A floating mechanism for the male end of a hydraulic quick-connect coupling was designed. Through the combination of the male end bracket and the limiting bolt, the male end is allowed to self-adjust within the floating range. Combined with the constraint of the limiting step, the smooth docking of the male and female ends is ensured.
It improves the success rate of docking, reduces the risk of joint damage, extends service life, and ensures the stable operation of the hydraulic system under complex working conditions.
Smart Images

Figure CN223725736U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hydraulic quick coupling technical field, concretely relates to a hydraulic quick coupling male head floating mechanism. BACKGROUND
[0002] In the hydraulic system, the application of hydraulic quick coupling is very wide, and its main function is to realize the quick connection and disconnection of hydraulic pipeline. In the automatic docking process, it is very important to quickly and accurately complete the docking of male and female heads. At present, the existing hydraulic quick coupling adopts female head floating mechanism in automatic docking. However, this method has obvious defects. When there is a position deviation between the male head and the female head, if the deviation exceeds the floating range of the female head, the docking will fail, and in serious cases, the quick coupling will be directly damaged. This not only affects the work efficiency and increases the equipment maintenance cost, but also may interfere with the normal operation of the entire hydraulic system, which brings great inconvenience in some working conditions with high requirements for the continuity of equipment operation. Therefore, it has important practical significance to develop a hydraulic quick coupling male head floating mechanism that can solve the above problems. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the problems in the background technology, the utility model provides a hydraulic quick coupling male head floating mechanism, which makes the male head in a floating state during docking, effectively compensates for the insufficient floating amount of the female head, improves the reliability of the joint docking, and reduces the docking failure and joint damage caused by position deviation.
[0004] Structure composition: the male head floating mechanism is mainly composed of a tool pin shaft, a welding block, a male head support, a quick coupling male head, a limiting bolt, a male head floating gap, a limiting step, a hydraulic joint, a tail oil port, a quick coupling female head and an adjusting gasket.
[0005] Connection relationship: the welding block and the tool pin shaft are fixedly connected through welding to ensure the stability of the connection. The male head support and the welding block are connected through two limiting bolts, and the male head support and the limiting bolt are provided with a floating gap. The adjusting gasket is not a necessary component, and a stepped limiting bolt can also be used to achieve the same effect. The male head support is provided with a limiting step for limiting the movement gap of the male head support along the axis direction of the quick coupling male head. The quick coupling male head is fixedly connected with the male head support through the hydraulic joint, and the internal oil passage of the quick coupling male head is communicated with the oil port of the male head support, so as to ensure the normal flow of hydraulic oil.
[0006] Working principle: During the docking of the male and female quick-connect couplings, the male connector bracket floats freely within the floating gap of the male connector, centered on the limiting bolt. During this floating process, the male connector bracket is simultaneously constrained in the axial direction by both the limiting bolt and the limiting step. This ensures that the male quick-connect coupling maintains a certain floating capacity without excessive displacement, thereby ensuring smooth docking of the male and female connectors and improving the reliability of the docking.
[0007] Compared with the prior art, the beneficial effects of this utility model are:
[0008] Improved docking success rate: By keeping the male connector in a floating state, the overall floating range is expanded, effectively reducing the probability of docking failure due to male and female connector position deviation, and improving the success rate of hydraulic quick-connect couplings in the automatic docking process.
[0009] Protective connectors reduce the squeezing deformation caused by positional deviations between male and female connectors, lower the risk of connector damage, extend the service life of quick-connect connectors, and reduce equipment maintenance costs.
[0010] Adaptable to harsh working conditions: In complex and harsh working environments, this mechanism can better cope with the problem of male and female head position deviation, ensure the stable operation of the hydraulic system, and improve the adaptability and reliability of the equipment. Attached Figure Description
[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0014] Figure 3 for Figure 2 A magnified front view of the structure at the location;
[0015] Figure 4 This is a schematic diagram of the docking structure of this utility model;
[0016] In the picture:
[0017] Attachment pin 1, welding block 2, male bracket 3, quick coupling male 4, limit bolt 5, male floating clearance 6, limit step 7, hydraulic connector 8, tail oil port 9, quick coupling female 10. Detailed Implementation
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0019] Embodiment 1
[0020] As Figures 1-4 indicated in the figure;
[0021] A hydraulic quick-change connector male head floating mechanism.
[0022] In the embodiment: to solve the technical problems existing in the prior art, as disclosed in the background art above, "when the position deviation occurs between the male head and the female head, if the deviation exceeds the floating range of the female head, it will lead to the failure of the butt joint, and in serious cases, it will even directly damage the quick-change connector. This not only affects the work efficiency and increases the equipment maintenance cost, but also may interfere with the normal operation of the entire hydraulic system, and in some working conditions with high requirements for the continuity of equipment operation, it will bring great inconvenience", in combination with the actual use, this problem is obviously a real problem and is relatively difficult to solve, therefore, to solve this technical problem, a hydraulic quick-change connector male head floating mechanism is provided on this basis.
[0023] As Figures 1-4 indicated in the figure;
[0024] In combination with the above content, including the tool pin shaft 1, the welding block 2, the male head support 3, the quick connector male head 4, the limiting bolt 5, the male head floating gap 6, the limiting step 7, the hydraulic connector 8, the tail oil port 9, the quick connector female head 10; the welding block 2 is fixedly connected with the tool pin shaft 1; the male head support 3 is connected with the welding block 2 through two limiting bolts 5, and the male head support 3 and the limiting bolt 5 have a floating gap 6 therebetween.
[0025] The limiting step 7 is arranged on the male head support 3; the quick connector male head 4 is fixedly connected with the male head support 3 through the hydraulic connector 8, and the internal oil passage of the quick connector male head 4 is in communication with the oil port 9 of the male head support 3.
[0026] The floating gap 6 can be adjusted by adjusting the gasket 11, or by using the stepped limiting bolt 5.
[0027] During the butt joint process of the quick connector male head 4 and the quick connector female head 10, the male head support 3 is freely floating within the range of the male head floating gap 6 with the limiting bolt 5 as the center, and is simultaneously constrained in the axial direction by the limiting bolt 5 and the limiting step 7.
[0028] Installation step: first, the welding block is firmly welded on the tool pin shaft, ensure the welding quality, prevent loose in the process of use. Then, through two limit bolts, the male head support is connected with the welding block, in the connection, according to the actual demand, adjust the floating gap between the male head support and the limit bolt, can choose to install adjusting washer, also can directly use the limit bolt with appropriate step structure. Then, the quick connector male head is fixedly installed on the male head support through hydraulic connector, and it is ensured that the internal oil channel of the quick connector male head and the oil port of the male head support are correctly connected, and the oil channel connection is completed.
[0029] Use process: when the hydraulic quick connector is automatically docked, if there is a position deviation between the quick connector and the female head, the male head support will freely float within the floating gap of the male head around the limit bolt, and at the same time, it is constrained by the limit bolt and the limit step in the axial direction, so that the quick connector male head can adaptively adjust the position and realize smooth docking with the female head. After docking, hydraulic oil can flow through the quick connector male head, the internal oil channel and the oil port of the male head support, so as to ensure the normal work of the hydraulic system. During use, the connection of each part can be checked regularly, such as whether the limit bolt is loose, whether there is a crack between the welding block and the tool pin shaft, etc., so as to ensure that the male head floating mechanism is always in good working condition.
[0030] Finally, it should be pointed out that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A hydraulic quick-change coupling male head floating mechanism, characterized by, Including tool pin shaft (1), welding block (2), male head support (3), quick connector male head (4), limiting bolt (5), male head floating gap (6), limiting step (7), hydraulic connector (8), tail oil port (9), quick connector female head (10); The welding block (2) is fixedly connected with the tool pin shaft (1); The male head support (3) is connected with the welding block (2) through two limiting bolts (5), and the male head support (3) and the limiting bolt (5) have a floating gap (6) therebetween.
2. A hydraulic quick-change coupling male float mechanism according to claim 1, characterized in that, The male head support (3) is provided with a limiting step (7); The quick connector male head (4) is fixedly connected with the male head support (3) through the hydraulic connector (8), and the oil passage in the quick connector male head (4) is communicated with the oil port (9) of the male head support (3).
3. A hydraulic quick hitch male floating mechanism according to claim 1, characterised in that: The floating gap (6) can be adjusted by adjusting the gasket (11), or by using a stepped limiting bolt (5).
4. The male float mechanism of a hydraulic quick- change coupling according to claim 1, characterized in that: In the process of connecting the quick connector male head (4) with the quick connector female head (10), the male head support (3) is freely floating within the range of the male head floating gap (6) with the limiting bolt (5) as the center, and is constrained in the axial direction by the limiting bolt (5) and the limiting step (7).