Automatic locking quick connector

Abstract

This utility model relates to the field of quick connector technology and provides an automatic locking quick connector, comprising: a male connector with a male connector flange; a locking spring body including a blocking head, a locking spring cantilever, and a drive block; a housing with a housing column inside; and a quick connector body for accommodating the insertion of the male connector. When the male connector is inserted, the locking spring body contacts the male connector flange via the drive block, and under the action of insertion force, the locking spring cantilever undergoes elastic deformation, causing the blocking head to pass over the housing column and move forward, thus achieving automatic locking. This utility model achieves automatic locking upon insertion by inserting the male connector into the quick connector body, with the male connector flange contacting the drive block. Under the action of insertion force, the force is transmitted to the locking spring cantilever via the drive block; the elastic deformation of the locking spring cantilever causes the blocking head to lift, further allowing the blocking head to pass over the housing column; the movement of the locking spring body achieves locking upon insertion, eliminating the need for manual operation; the structure is compact and saves installation space.

Description

Technical Field

[0001] This utility model relates to the field of quick connector technology, and more specifically, to an automatic locking quick connector. Background Technology

[0002] In recent years, with the continuous growth of the market share of new energy vehicles, the number of hybrid electric vehicles (PHEVs) has exploded. Compared with traditional fuel vehicles, PHEVs need to be equipped with dual systems of oil and electricity. Compared with traditional fuel vehicles, their chassis space is more limited, requiring more compact, easier-to-operate and more efficient components.

[0003] The quick-connect fitting for refueling pipes disclosed in patent publication number CN215294056U requires a locking structure that needs to be manually pushed to the locking position, thus requiring more assembly space and making it unfavorable for the arrangement of parts.

[0004] Therefore, there is an urgent need to design a compact and easy-to-assemble quick-connect connector to improve the utilization of interior space in automobiles. Utility Model Content

[0005] The problem solved by this utility model is: how to enable the automatic locking quick-connect connector to lock automatically during installation without human intervention, and to have a higher space utilization rate.

[0006] To solve the above problems, this utility model provides an automatic locking quick-connect connector, comprising: Male connector, which is equipped with a male connector flange; The locking spring body includes a blocking head, a locking spring cantilever, and a drive block; A housing, wherein housing columns are provided inside the housing; The quick-connect connector body is used to accommodate the insertion of the male connector; When the male connector is inserted, the locking spring body contacts the male connector flange through the driving block, and under the action of the insertion force, the locking spring cantilever undergoes elastic deformation, causing the blocking head to pass over the housing column and move forward, thereby achieving automatic locking.

[0007] Optionally, the drive block has a curved surface structure for sliding contact with the male connector flange, decomposing the insertion force into friction and thrust.

[0008] Optionally, the thrust is further decomposed into the expansion force of the outward expansion of the locking spring cantilever and the forward thrust that pushes the locking spring body forward.

[0009] Optionally, the locking spring cantilever bends to both sides under the action of the expansion force, so that the blocking head is disengaged from the obstruction of the housing column.

[0010] Optionally, the blocking head is hooked onto the outside of the housing column in the locked state to prevent the locking spring body from retracting and loosening.

[0011] Optionally, the locking spring body further includes a blocking ring. When the locking spring body is inserted into the housing to form a closure, the blocking ring is located above the male connector flange to prevent the male connector from exiting.

[0012] Optionally, the mating structure between the housing column and the blocking head is a beveled or arc-shaped guide structure.

[0013] Optionally, both sides of the housing have a first through groove and a second through groove, the first through groove and the second through groove corresponding to the blocking ring and the locking spring cantilever, respectively.

[0014] Optionally, when the locking spring body moves toward the clamping male connector flange, the blocking ring moves along the first through groove; When the locking spring body moves toward the clamping male connector flange, the locking spring cantilever bends to both sides under the action of expansion force, and at least a portion of it is locked to the housing column through the second through groove.

[0015] Optionally, the quick-connect connector body and the housing are integrally formed.

[0016] Compared with the prior art, the automatic locking quick-connect connector of this utility model has the following advantages: This utility model involves inserting a male connector into the body of a quick-connect connector. The flange of the male connector contacts the drive block, and the force of insertion is transmitted to the locking spring cantilever through the drive block. The elastic deformation of the locking spring cantilever causes the blocking head to lift up and further pass over the housing column. The locking spring body moves, achieving immediate locking upon insertion without manual operation. The structure is compact and saves installation space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection between the male connector and the automatic locking quick-connect connector in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the locking spring body locking the male connector flange in an embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of the locking spring body and the housing column before locking in this embodiment of the present invention; Figure 4 This is a schematic diagram of the structure after the locking spring body and the housing column are locked together in an embodiment of this utility model; Figure 5 This is a schematic diagram of the automatic locking quick-connect connector in an embodiment of this utility model; Figure 6 This is a top view of the male connector and the automatic locking quick-connect connector before they are inserted in the embodiment of this utility model.

[0018] In the diagram: 100 is the male connector; 110 is the male connector flange; 200 is the locking spring body; 210 is the blocking head; 220 is the locking spring cantilever; 230 is the drive block; 240 is the locking spring cantilever; 300 is the housing; 310 is the housing column; 400 is the quick-connect connector body. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative embodiment of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0023] like Figures 1 to 6 As shown, this utility model embodiment provides an automatic locking quick-connect connector, comprising: Male connector 100, which is provided with male connector flange 110; The locking spring body 200 includes a blocking head 210, a locking spring cantilever 220, and a drive block 230; The housing 300 has a housing column 310 inside; The quick-connect connector body 400 is used to accommodate the insertion of the male connector 100; When the male connector 100 is inserted, the locking spring body 200 contacts the male connector flange 110 through the driving block 230, and under the action of the insertion force, it undergoes elastic deformation through the locking spring cantilever 220, causing the blocking head 210 to pass over the housing column 310 and move forward, thereby achieving automatic locking.

[0024] Specifically, the male connector 100 is inserted into the quick-connect connector body 400, and the male connector flange 110 contacts the drive block 230. Under the action of insertion force, the force is transmitted to the locking spring cantilever 220 through the drive block 230. The elastic deformation of the locking spring cantilever 220 causes the blocking head 210 to be lifted, further allowing the blocking head 210 to pass over the housing column 310. The locking spring body 200 moves, achieving locking upon insertion without manual operation. The structure is compact and saves installation space.

[0025] like Figure 2 and Figure 3 As shown, the drive block 230 has a curved surface structure for sliding contact with the male connector flange 110, decomposing the insertion force into friction and thrust. The curved surface structure optimizes the force transmission path, reduces frictional loss, and improves insertion smoothness.

[0026] The thrust is further decomposed into the expansion force of the outward expansion of the locking spring cantilever 220 and the forward thrust that pushes the locking spring body 200 forward. The force decomposition mechanism ensures that the locking spring cantilever 220 expands effectively, while simultaneously pushing the locking spring as a whole forward.

[0027] Under the action of expansion force, the locking spring cantilever 220 bends to both sides, causing the blocking head 210 to disengage from the obstruction of the housing column 310. Through the elastic deformation of the locking spring cantilever 220, the blocking head 210 is lifted, overcomes the obstacle, and achieves unlocking and forward movement.

[0028] When locked, the blocking head 210 hooks onto the outside of the housing column 310 to prevent the locking spring body 200 from retracting and becoming loose. The mechanical hook structure forms a reverse anti-retraction mechanism to prevent the locking spring from becoming loose.

[0029] Furthermore, the locking spring body 200 also includes a retaining ring 240. When the locking spring is closed, the retaining ring 240 is located above the male connector flange 110 to prevent the male connector 100 from retracting. The retaining ring 240 forms an axial anti-retraction mechanism, enhancing locking reliability.

[0030] It should be noted that the mating structure between the housing column 310 and the blocking head 210 is a beveled or arc-shaped guide structure. The guide structure optimizes the contact path and reduces impact and wear.

[0031] Both sides of the housing 300 have a first through groove and a second through groove, which correspond to the blocking ring 240 and the locking spring cantilever 220, respectively.

[0032] When the locking spring body 200 moves toward the clamping male flange 110, the blocking ring 240 moves along the first through groove; When the locking spring body 200 moves toward the clamping male flange 110, the locking spring cantilever 220 bends to both sides under the action of the expansion force, and at least a part of it is locked to the housing column 310 through the second through groove.

[0033] The through slot provides guidance and movement space for the movement of the locking spring's retaining ring 240 and the locking spring cantilever 220, ensuring accurate movement trajectories. The through slot guides the movement of each component of the locking spring along a predetermined path, ensuring a consistent locking process.

[0034] The quick-connect connector body 400 and housing 300 are integrally molded. This integrated design reduces the number of parts and improves structural strength and sealing performance.

[0035] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An automatic drop lock quick connector characterized by, include: Male connector, which is equipped with a male connector flange; The locking spring body includes a blocking head, a locking spring cantilever, and a drive block; A housing, wherein housing columns are provided inside the housing; The quick-connect connector body is used to accommodate the insertion of the male connector; When the male connector is inserted, the locking spring body contacts the male connector flange through the driving block, and under the action of the insertion force, the locking spring cantilever undergoes elastic deformation, causing the blocking head to pass over the housing column and move forward, thereby achieving automatic locking.

2. The automatic drop lock, quick connector of claim 1, wherein, The drive block has a curved surface structure for sliding contact with the male connector flange, decomposing the insertion force into friction and thrust.

3. The automatic drop lock, quick connector of claim 2, wherein, The thrust is further decomposed into the expansion force that expands the cantilever of the locking spring outward and the forward thrust that pushes the locking spring body forward.

4. The automatic drop lock, quick connector of claim 3, wherein, The locking spring cantilever bends to both sides under the action of expansion force, causing the blocking head to disengage from the obstruction of the housing column.

5. The automatic drop-in lock connector of claim 4, wherein When locked, the blocking head hooks onto the outside of the housing column to prevent the locking spring body from retracting and loosening.

6. The automatic locking quick-connect coupling according to claim 1, characterized in that, The locking spring body also includes a blocking ring. When the locking spring body is inserted into the housing to form a closure, the blocking ring is located above the male connector flange to prevent the male connector from exiting.

7. The automatic locking quick-connect coupling according to claim 1, characterized in that, The mating structure between the housing column and the blocking head is a sloped or arc-shaped guiding structure.

8. The automatic locking quick-connect connector according to claim 6, characterized in that, Both sides of the housing have a first through groove and a second through groove, which correspond to the blocking ring and the locking spring cantilever, respectively.

9. The automatic locking quick-connect coupling according to claim 8, characterized in that, When the locking spring body moves toward the clamping male flange, the blocking ring moves along the first through groove; When the locking spring body moves toward the clamping male connector flange, the locking spring cantilever bends to both sides under the action of expansion force, and at least a portion of it is locked to the housing column through the second through groove.

10. The automatic locking quick-connect coupling according to claim 1, characterized in that, The quick-connect connector body and the housing are integrally formed.

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