A leak-proof automotive hydraulic hose connection sealing assembly

Abstract

This utility model relates to a leak-proof automotive hydraulic hose connection sealing assembly, belonging to the field of automotive parts technology. The leak-proof automotive hydraulic hose connection sealing assembly includes: two crimping connectors and an anti-loosening mechanism. The two crimping connectors are respectively fixedly connected to a connector tube and a threaded tube. A sealing ring is embedded between the connector tube and the threaded tube. A threaded sleeve that is threadedly connected to the threaded tube is slidably connected to the surface of the connector tube. The anti-loosening mechanism provides a stable installation base through a fixing ring. The precise insertion of the slot and the positioning element ensures alignment accuracy. The threaded positioning groove and the threaded connection of the bolt form a rigid lock, effectively suppressing the relative rotation of the threaded sleeve and the threaded tube. Under vibration conditions, this structure counteracts the loosening torque through multiple mechanical constraints, significantly reducing the risk of threaded connection loosening and ensuring the long-term compressed state of the sealing ring.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a leak-proof automotive hydraulic oil pipe connection sealing assembly. Background Technology

[0002] Automotive hydraulic hose connection sealing assemblies are key components in hydraulic systems, primarily used to ensure a tight connection between hoses, fittings, and valve bodies. These assemblies fill clearance gaps through elastic deformation and structural compression, and can withstand oil pressure, vibration, and temperature variations, thereby maintaining stable system operation. Common sealing component types include O-rings and compression fittings; these components must possess properties such as oil resistance, temperature resistance, and aging resistance.

[0003] Currently, users typically employ tight threaded connections to improve the stability of seal operation. However, under long-term vibration conditions, the friction between threaded connections gradually decreases, increasing the probability of loosening. This issue makes it difficult for seals to maintain stable operation, and the risk of leakage remains. Utility Model Content

[0004] Therefore, it is necessary to provide a leak-proof automotive hydraulic hose connection sealing assembly to address the problem that existing automotive hydraulic hose connection sealing assemblies are prone to loosening due to vibration.

[0005] A leak-proof automotive hydraulic hose connection sealing assembly includes: two crimping joints and an anti-loosening mechanism, wherein the two crimping joints are respectively fixedly connected to a connector tube and a threaded tube, a sealing ring is embedded between the connector tube and the threaded tube, and a threaded sleeve that is threadedly connected to the threaded tube is slidably connected to the surface of the connector tube.

[0006] In one embodiment, the anti-loosening mechanism includes a fixing ring fixedly connected to the surface of the threaded pipe. The fixing ring has a slot at its side end and a threaded positioning groove communicating with the slot on its upper surface. A positioning element rotatably connected to the threaded sleeve is inserted into the slot, and a bolt threadedly connected to the threaded positioning groove is inserted into the upper surface of the positioning element.

[0007] In one embodiment, the partial cross-sectional shape of the connection between the slot and the positioning element is annular, and the centerlines of the slot, the positioning element, and the threaded tube coincide.

[0008] In one embodiment, the threaded tube is perpendicular to the axis of the bolt.

[0009] In one embodiment, the upper surface of the fixing ring has an arc-shaped opening that communicates with both the slot and the threaded positioning groove. The upper surface of the positioning member is fixedly connected with a positioning ring sleeve that engages with the arc-shaped opening. The shank of the bolt extends through the outside of the positioning ring sleeve.

[0010] In one embodiment, a flexible protective sleeve is provided between the positioning ring and the bolt head, and the shank of the bolt is located inside the flexible protective sleeve.

[0011] In one embodiment, the flexible protective sleeve is a rubber spring material component, and the flexible protective sleeve is in a compressed state.

[0012] In one embodiment, the bottom of the bolt has a mounting cavity, and the inner top wall of the mounting cavity is fixedly connected to a metal spring that contacts the threaded positioning groove.

[0013] In one embodiment, the metal spring is always in a compressed state, and the metal spring is a stainless steel component.

[0014] Beneficial effects

[0015] 1. The aforementioned leak-proof automotive hydraulic hose connection sealing assembly features an anti-loosening mechanism that provides a stable mounting base through a retaining ring. Precise insertion of the slot and positioning element ensures alignment accuracy, while the threaded connection between the threaded positioning groove and the bolt forms a rigid lock, effectively suppressing relative rotation between the threaded sleeve and the threaded tube. Under vibration conditions, this structure counteracts loosening torque through multiple mechanical constraints, significantly reducing the risk of threaded connection loosening and ensuring the long-term tightness of the sealing ring.

[0016] 2. The interlocking fit between the arc-shaped opening and the positioning ring restricts radial displacement, the flexible protective sleeve absorbs vibration energy through elastic deformation, and the metal spring provides continuous axial preload. These three elements work together to form a dynamic anti-loosening system, compensating for wear clearances in the threaded pair and preventing bolt retraction due to alternating loads, thereby maintaining the overall stability of the sealing assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 for Figure 1Schematic sectional view along the middle AA direction;

[0020] Figure 3 for Figure 1 Cross-sectional view along the middle BB direction;

[0021] Figure 4 for Figure 3 Enlarged view of C;

[0022] Figure 5 This is an exploded view of the overall structure of this utility model.

[0023] Figure label:

[0024] 100. Crimped connector; 200. Connector tube; 300. Threaded tube; 400. Sealing ring; 500. Threaded sleeve; 600. Anti-loosening mechanism; 610. Retaining ring; 611. Slot; 612. Threaded positioning groove; 613. Arc opening; 620. Positioning component; 630. Bolt; 631. Mounting cavity; 640. Positioning ring sleeve; 650. Flexible protective sleeve; 660. Metal spring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The following is combined Figure 1 - Figure 5 This invention describes a leak-proof automotive hydraulic hose connection sealing assembly.

[0027] In one embodiment, a leak-proof automotive hydraulic hose connection sealing assembly includes: two crimping fittings 100 and an anti-loosening mechanism 600. The two crimping fittings 100 are respectively fixedly connected to a fitting tube 200 and a threaded tube 300. A sealing ring 400 is embedded between the fitting tube 200 and the threaded tube 300. A threaded sleeve 500 that is threadedly connected to the threaded tube 300 is slidably connected to the surface of the fitting tube 200. The crimping fittings 100 achieve a stable connection of the hose, the sealing ring 400 provides a reliable seal to prevent leakage, and the threaded sleeve 500 achieves initial tightening.

[0028] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the anti-loosening mechanism 600 includes a retaining ring 610 fixedly connected to the surface of the threaded tube 300. A slot 611 is provided on the side end of the retaining ring 610, and a threaded positioning groove 612 communicating with the slot 611 is provided on the upper surface of the retaining ring 610. A positioning element 620 rotatably connected to the threaded sleeve 500 is inserted into the inside of the slot 611. A bolt 630 threadedly connected to the threaded positioning groove 612 is inserted into the upper surface of the positioning element 620. The retaining ring 610 provides the mounting base, the slot 611 and the positioning element 620 ensure precise alignment, and the threaded positioning groove 612 cooperates with the bolt 630 to enhance the anti-loosening effect.

[0029] The partial cross-sectional shape of the connection between the slot 611 and the positioning element 620 is annular. The centerlines of the slot 611, the positioning element 620, and the threaded tube 300 coincide. The annular cross-sectional design ensures coaxiality and prevents misalignment. The centerline of the threaded tube 300 is perpendicular to the centerline of the bolt 630. This vertical arrangement prevents the bolt 630 from loosening due to vibration. The upper surface of the fixing ring 610 has an arc-shaped opening 613 that communicates with both the slot 611 and the threaded positioning groove 612. The upper surface of the positioning element 620 is fixedly connected to a positioning ring sleeve 640 that engages with the arc-shaped opening 613. The shank of the bolt 630 extends beyond the positioning ring sleeve 640. The engagement between the arc-shaped opening 613 and the positioning ring sleeve 640 further restricts rotation. A flexible protective sleeve 650 is fitted between the positioning ring 640 and the head of the bolt 630. The shank of the bolt 630 is located inside the flexible protective sleeve 650. The flexible protective sleeve 650 buffers vibration and prevents corrosion. The flexible protective sleeve 650 is a rubber spring material component. The flexible protective sleeve 650 is in a compressed state, and the compressed state provides a continuous elastic holding force. The bottom of the bolt 630 has an installation cavity 631. The inner top wall of the installation cavity 631 is fixedly connected to a metal spring 660 that contacts the threaded positioning groove 612. The metal spring 660 provides additional locking force. The metal spring 660 is always in a compressed state. The metal spring 660 is a stainless steel material component. Stainless steel is corrosion-resistant and extends service life.

[0030] Working principle: First, the two crimping joints 100 are crimped and fixed to the two oil pipes respectively. Then, a sealing ring 400 is embedded between the joint pipe 200 and the threaded pipe 300, and the threaded sleeve 500, which is slidably connected to the surface of the joint pipe 200, is screwed into the threaded pipe 300 for initial tightening. During this process, the threaded pipe 300 inserts the positioning part 620 of the anti-loosening mechanism 600 into the slot 611 of the fixing ring 610, so that the positioning ring sleeve 640 on the positioning part 620 is engaged with the arc opening 613 of the fixing ring 610. Then, the bolt 630 is screwed into the threaded positioning groove 612 for locking. At this time, the metal spring 660 at the bottom of the bolt 630 is compressed to provide a continuous locking force. At the same time, the flexible protective sleeve 650 is fitted on the shank of the bolt 630 and is in a compressed state, further enhancing the anti-loosening effect, so as to ensure that the joint pipe 200, the threaded pipe 300 and the sealing ring 400 form a stable sealing connection.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A leak-proof automotive hydraulic hose connection sealing assembly, characterized in that, include: Two crimping connectors (100) are provided, and the two crimping connectors (100) are respectively fixedly connected to a connector tube (200) and a threaded tube (300). A sealing ring (400) is embedded between the connector tube (200) and the threaded tube (300). A threaded sleeve (500) that is threadedly connected to the threaded tube (300) is slidably connected to the surface of the connector tube (200). The anti-loosening mechanism (600) includes a fixing ring (610) fixedly connected to the surface of the threaded tube (300). The fixing ring (610) has a slot (611) at its side end. The upper surface of the fixing ring (610) has a threaded positioning groove (612) communicating with the slot (611). A positioning element (620) rotatably connected to the threaded sleeve (500) is inserted into the slot (611). A bolt (630) threadedly connected to the threaded positioning groove (612) is inserted into the upper surface of the positioning element (620).

2. The leak-proof automotive hydraulic hose connection sealing assembly according to claim 1, characterized in that, The local cross-sectional shape of the connection between the slot (611) and the positioning member (620) is annular, and the center lines of the slot (611), the positioning member (620) and the threaded tube (300) coincide.

3. The leak-proof automotive hydraulic hose connection sealing assembly according to claim 2, characterized in that, The threaded tube (300) is perpendicular to the axis of the bolt (630).

4. The leak-proof automotive hydraulic hose connection sealing assembly according to claim 1, characterized in that, The upper surface of the fixing ring (610) is provided with an arc-shaped opening (613) that communicates with both the slot (611) and the threaded positioning groove (612). The upper surface of the positioning member (620) is fixedly connected with a positioning ring sleeve (640) that engages with the arc-shaped opening (613). The shank of the bolt (630) extends through the outside of the positioning ring sleeve (640).

5. The leak-proof automotive hydraulic hose connection sealing assembly according to claim 4, characterized in that, A flexible protective sleeve (650) is provided between the positioning ring (640) and the head of the bolt (630), and the shank of the bolt (630) is located inside the flexible protective sleeve (650).

6. The leak-proof automotive hydraulic hose connection sealing assembly according to claim 5, characterized in that, The flexible protective sleeve (650) is a rubber spring material component, and the flexible protective sleeve (650) is in a compressed state.

7. The leak-proof automotive hydraulic hose connection sealing assembly according to claim 1, characterized in that, The bottom of the bolt (630) is provided with a mounting cavity (631), and the inner top wall of the mounting cavity (631) is fixedly connected with a metal spring (660) that contacts the threaded positioning groove (612).

8. The leak-proof automotive hydraulic hose connection sealing assembly according to claim 7, characterized in that, The metal spring (660) is always in a compressed state, and the metal spring (660) is a stainless steel component.

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