High-pressure-resistant push-pull type quick connector

Abstract

The utility model relates to a push-pull type quick connector resistant to high pressure, which belongs to the field of push-pull type quick connectors and comprises a connector main body front end and a connector main body rear end fixedly communicated with the bottom of the connector main body front end, a fastening assembly is arranged outside the connector main body rear end, a buffer assembly is arranged outside the connector main body rear end, and the buffer assembly is connected with the connector main body front end. The fastening assembly comprises two clamping sleeves which are connected to the outer portion of the rear end of the connector body in a sleeving mode, four mounting blocks are fixedly connected to the outer portions of the two clamping sleeves, and bolts are connected to the interiors of the mounting blocks in a threaded mode. According to the high-pressure-resistant push-pull type quick connector, the two clamping sleeves are attached to each other for preliminary fixation, and then the rear end of the connector body and the two clamping sleeves are further fixed through matched use of the mounting blocks and bolts, so that the wrapping performance of the rear end of the connector body is guaranteed and enhanced, and the compression strength and safety of the rear end of the connector body are improved; and the advantage of good protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of push-pull type quick connectors, in particular to a high-pressure resistant push-pull type quick connector. Background Art

[0002] Push-pull pneumatic quick connectors are primarily used on pneumatic tools, such as air cannons, dust guns, tire pressure guns, and jackhammers. Traditional pneumatic quick connectors for large air cannons come in two types: non-airtight and airtight. Non-airtight connectors cannot be removed during use of the pneumatic tool, while airtight connectors are controlled by a ball valve. Because the valve's external switch is exposed on the outside of the connector, it can easily break during use, rendering the entire connector useless.

[0003] In the process of using pneumatic tools, a high-pressure resistant push-pull quick connector is required. The Chinese utility model patent with announcement number CN217603597U discloses a high-pressure resistant quick connector, including a quick connector body, one end of the quick connector body is a fixed connector that connects to the external air outlet pipe, and the other end is a dynamic connector that connects to the external air inlet pipe. A cut-off structure is provided inside the quick connector body, and the cut-off structure includes a valve core and a valve stem. The valve core is arranged at one end of the dynamic connector and the tail of the valve core extends to the outside of the quick connector body. The head of the valve core is provided with a docking groove in the center, and the end of the valve stem is provided with a docking joint that can be engaged with the docking groove.

[0004] However, the high-pressure resistant quick connector of the utility model has low pressure resistance during use, which makes the pipe joint prone to leakage or bursting, and is easy to break, causing the entire connector to be scrapped, seriously affecting the use quality of the quick connector and failing to meet the use requirements. Therefore, a high-pressure resistant push-pull quick connector is proposed to solve the above problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a high-pressure resistant push-pull quick connector, which has the advantages of good protection effect and strong practicality. It solves the problem that the existing high-pressure resistant quick connector has low pressure resistance during use, which makes the pipe joints prone to leakage or bursting, and is easy to break and cause the entire connector to be scrapped, seriously affecting the use quality of the quick connector and failing to meet usage requirements.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-pressure resistant push-pull quick connector, comprising a connector body front end and a connector body rear end fixedly connected to the bottom of the connector body front end, a fastening assembly being provided on the outside of the connector body rear end, and a buffer assembly being provided on the outside of the connector body rear end;

[0007] The fastening assembly includes two ferrules sleeved on the rear end of the connector body, the exteriors of the two ferrules are fixedly connected to four mounting blocks, and the interiors of the mounting blocks are threadedly connected to bolts;

[0008] The buffer assembly includes a first hinged seat hinged to the outside of the ferrule, an elastic telescopic rod hinged inside the first hinged seat, an end of the elastic telescopic rod away from the first hinged seat is hinged to a second hinged seat, and a protective shell is fixedly connected to the side of the second hinged seat away from the elastic telescopic rod.

[0009] Furthermore, the two ferrules are symmetrically distributed on the outside of the rear end of the joint body, and the outer diameter of the rear end of the joint body is adapted to the inner diameter of the ferrules.

[0010] Furthermore, the four mounting blocks are distributed in a rectangular shape on the outside of the ferrule, and the number of the bolts is four.

[0011] Furthermore, a spring is fixedly connected between the first hinge seat and the second hinge seat, and the spring is connected around the outside of the elastic telescopic rod.

[0012] Furthermore, the number of the first hinged seat, the elastic telescopic rod, the second hinged seat and the spring is six, the number of the protective shells is two, and the two protective shells are symmetrically distributed on the outside of the two ferrules.

[0013] Furthermore, a fixing component extending to the outside is provided inside the front end of the connector body, and the fixing component includes a frame fixedly connected to the inside of the front end of the connector body, a return spring is fixedly installed inside the frame, and the end of the return spring away from the frame is fixedly connected to a block extending to the outside of the frame.

[0014] Furthermore, a movable opening adapted to the clamping block is provided inside the frame, and the outer diameter of the clamping block is adapted to the inner diameter of the movable opening.

[0015] Compared with the prior art, the present invention provides a high-pressure resistant push-pull quick connector with the following advantages:

[0016] 1. This high-pressure resistant push-pull quick connector preliminarily fixes the outer surface of the rear end of the connector body by fitting two ferrules together, and then further fixes the rear end of the connector body and the two ferrules by using a mounting block and bolts, thereby improving the connection effect between the rear end of the connector body and the two ferrules, ensuring and strengthening the wrapping of the rear end of the connector body, improving the pressure resistance and safety of the rear end of the connector body, and achieving the advantage of good protection effect.

[0017] 2. This high-pressure resistant push-pull quick connector uses the elastic force of the elastic telescopic rod and the spring to cushion the impact force generated when the front and rear ends of the connector body fall. By providing a clamping block and a return spring, the clamping block can clamp the male connector to connect the air pipe and the pneumatic tool, thereby improving the convenience of use of the front and rear ends of the connector body and achieving the advantage of strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 2 This is a top view of the structure of the fastening assembly of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure shown;

[0021] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure of B shown;

[0022] Figure 5 It is a structural stereogram of the fixing assembly of the utility model.

[0023] In the figure: 1 front end of the joint body, 2 rear end of the joint body, 3 fastening assembly, 31 ferrule, 32 mounting block, 33 bolt, 4 buffer assembly, 41 first hinge seat, 42 elastic telescopic rod, 43 second hinge seat, 44 protective shell, 45 spring, 5 fixing assembly, 51 frame, 52 return spring, 53 block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5In this embodiment, a high-pressure resistant push-pull quick connector includes a connector body front end 1 and a connector body rear end 2 fixedly connected to the bottom of the connector body front end 1. A fastening assembly 3 is provided on the outside of the connector body rear end 2, and a buffer assembly 4 is provided on the outside of the connector body rear end 2. The fastening assembly 3 includes two ferrules 31 sleeved on the outside of the connector body rear end 2. The outsides of the two ferrules 31 are fixedly connected to four mounting blocks 32, and the internal threads of the mounting blocks 32 are connected to bolts 33. By fitting the two ferrules 31 together, the outer surface of the connector body rear end 2 is preliminarily fixed, and then the connector body rear end 2 and the two ferrules 31 are further fixed by using the mounting blocks 32 and the bolts 33, thereby improving the connection effect between the connector body rear end 2 and the two ferrules 31, ensuring and strengthening the wrapping of the connector body rear end 2, improving the pressure resistance and safety of the connector body rear end 2, and achieving the advantage of good protection effect.

[0026] The two ferrules 31 are symmetrically distributed on the outside of the rear end 2 of the connector body, and the outer diameter of the rear end 2 of the connector body is adapted to the inner diameter of the ferrules 31 .

[0027] Specifically, four mounting blocks 32 are distributed outside the ferrule 31 in a rectangular shape, and the number of the bolts 33 is four.

[0028] It should be noted that the front end 1 and the rear end 2 of the joint body are both conventional technologies known to the public in the prior art, so their specific structural composition and working principles will not be described in detail in this article.

[0029] In this embodiment, the buffer assembly 4 includes a first hinged seat 41 hinged to the outside of the ferrule 31. An elastic telescopic rod 42 is hingedly connected to the interior of the first hinged seat 41. A second hinged seat 43 is hingedly connected to the end of the elastic telescopic rod 42 away from the first hinged seat 41. A protective shell 44 is fixedly connected to the side of the second hinged seat 43 away from the elastic telescopic rod 42. The elastic force of the elastic telescopic rod 42 and the spring 45 allows the front end 1 and the rear end 2 of the joint body to cushion the impact force generated when falling.

[0030] A spring 45 is fixedly connected between the first hinge seat 41 and the second hinge seat 43 , and the spring 45 is connected around the outside of the elastic telescopic rod 42 .

[0031] Specifically, there are six first hinged seats 41 , elastic telescopic rods 42 , second hinged seats 43 and springs 45 , and two protective shells 44 . The two protective shells 44 are symmetrically distributed on the outside of the two ferrules 31 .

[0032] In this embodiment, a fixing assembly 5 extending from the interior of the front end 1 of the connector body is provided. The fixing assembly 5 includes a frame 51 fixedly connected to the interior of the front end 1 of the connector body. A return spring 52 is fixedly installed in the interior of the frame 51. The end of the return spring 52, which is remote from the frame 51, is fixedly connected to a clamping block 53 extending from the exterior of the frame 51. By providing the clamping block 53 and the return spring 52, the clamping block 53 can clamp the male connector, allowing the air pipe to be connected to the pneumatic tool, thereby improving the convenience of use of the front end 1 and the rear end 2 of the connector body, achieving the advantage of strong practicality.

[0033] The frame 51 has a movable opening inside thereof adapted to the clamping block 53 , and the outer diameter of the clamping block 53 is adapted to the inner diameter of the movable opening.

[0034] The working principle of the above embodiment is:

[0035] When in use, the outer surface of the rear end 2 of the connector body is initially fixed by fitting the two ferrules 31 together, and then the rear end 2 of the connector body and the two ferrules 31 are further fixed by using the mounting block 32 in combination with the bolt 33, thereby improving the connection effect between the rear end 2 of the connector body and the two ferrules 31, so that the wrapping property of the rear end 2 of the connector body is guaranteed and strengthened, and the elastic force of the elastic telescopic rod 42 and the spring 45 is used to buffer the impact force generated when the connector body falls, and the block 53 and the return spring 52 are provided so that the block 53 can clamp the male head to connect the trachea and the pneumatic tool.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure resistant push-pull quick connector, characterized by: The invention comprises a joint body front end (1) and a joint body rear end (2) fixedly connected to the bottom of the joint body front end (1); a fastening component (3) is provided on the outside of the joint body rear end (2); and a buffer component (4) is provided on the outside of the joint body rear end (2); The fastening assembly (3) comprises two ferrules (31) sleeved on the outside of the rear end (2) of the joint body, the outsides of the two ferrules (31) being fixedly connected to four mounting blocks (32), and the internal threads of the mounting blocks (32) being connected to bolts (33); The buffer assembly (4) includes a first hinged seat (41) hinged to the outside of the ferrule (31), an elastic telescopic rod (42) is hinged inside the first hinged seat (41), an end of the elastic telescopic rod (42) away from the first hinged seat (41) is hinged to a second hinged seat (43), and a side of the second hinged seat (43) away from the elastic telescopic rod (42) is fixedly connected to a protective shell (44).

2. A high-pressure resistant push-pull quick connector according to claim 1, characterized in that: The two ferrules (31) are symmetrically distributed on the outside of the rear end (2) of the joint body, and the outer diameter of the rear end (2) of the joint body is adapted to the inner diameter of the ferrules (31).

3. The high-pressure resistant push-pull quick connector according to claim 1, characterized in that: The four mounting blocks (32) are distributed outside the clamping sleeve (31) in a rectangular shape, and the number of the bolts (33) is four.

4. The high-pressure resistant push-pull quick connector according to claim 1, characterized in that: A spring (45) is fixedly connected between the first hinge seat (41) and the second hinge seat (43), and the spring (45) is connected around the outside of the elastic telescopic rod (42).

5. The high-pressure resistant push-pull quick connector according to claim 1, characterized in that: The number of the first hinge seat (41), the elastic telescopic rod (42), the second hinge seat (43) and the spring (45) is six, the number of the protective shells (44) is two, and the two protective shells (44) are symmetrically distributed on the outside of the two ferrules (31) in a front-to-back manner.

6. The high-pressure resistant push-pull quick connector according to claim 1, characterized in that: A fixing assembly (5) extending to the outside of the connector body is provided inside the front end (1) of the connector body, and the fixing assembly (5) comprises a frame (51) fixedly connected to the inside of the front end (1) of the connector body, a return spring (52) is fixedly installed inside the frame (51), and a clamping block (53) extending to the outside of the frame (51) is fixedly connected to one end of the return spring (52) away from the frame (51).

7. The high-pressure resistant push-pull quick connector according to claim 6, characterized in that: A movable opening adapted to the clamping block (53) is provided inside the frame (51), and the outer diameter of the clamping block (53) is adapted to the inner diameter of the movable opening.

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