Bending type quick female joint structure

Abstract

The utility model provides a bending type quick female joint structure, which is used for solving the problems of operability of positioning and jointing of a male joint and integral mass production and manufacturing, and comprises a connecting seat body provided with a connector which is connected with a pipe body with two guide grooves; the pivoting shaft is mounted in a pivoting hole formed in the connector, and a clamping groove is formed in each of the two ends of the pivoting shaft; the connecting pipe adopts a standard specification product and is partially sleeved in the pipe body so as to abut against a leakage stopping ring; the positioning sliding sleeve is sleeved and wrapped outside the pipe body to form a space for installing a return assembly, two protruding parts are arranged in the positioning sliding sleeve to be embedded into the two guide grooves of the pipe body, and two clamping blocks are arranged on one end face of the positioning sliding sleeve to be clamped into the two clamping grooves.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic components and equipment thereof, in particular to the scope of a bending type quick female connector structure. Background Art

[0002] A conventional bent quick female connector 9, such as Figure 11 As shown, the Taiwan Utility Model Patent No. TWM338301 "Plug-in Quick Rotary Joint" discloses a connecting seat 91, a pivot shaft 92, a leak-proof ring 93, a connecting tube 94 and a positioning sleeve 95. The connecting seat 91 and the pivot shaft 92, into which a male connector is inserted, can rotate relative to the connecting seat 91 at a specific angle to facilitate the connection or removal of the male and female connectors. Two grooves 921 and two clamping blocks 951 are respectively provided between the pivot shaft 92 and the positioning sleeve 95 to locate the connection of the male and female connectors. Two guide grooves 911 are provided on the outside of the connecting seat 91 to provide the two clamping blocks 951 for insertion and then guide the positioning sleeve 95 for linear movement, so that the two clamping blocks 951 are clamped into the two grooves 921 provided on the positioning sleeve 95 to locate the rotational angle position of the male connector.

[0003] However, since the length of the two guide grooves 911 is too short (about 7 mm), Figure 12 As shown, when the user pulls down the positioning sleeve 95 and often moves it too much, if the positioning sleeve 95 is slightly rotated, the two clamping blocks 951 will not be aligned with the two slots 921. When the restoring elastic force of a return spring 952 is provided, the positioning sleeve 95 cannot return to the starting position, causing the conventional bending type quick female connector 9 to lose its function of quickly connecting the pneumatic pipeline. Furthermore, the conventional bending type quick female connector 9 is not provided with any safety mechanism. If the positioning sleeve 95 is accidentally touched and linearly displaced, the two clamping blocks 951 will be disengaged from the two slots 921 to separate the male and female connectors, which will cause the operation of the pneumatic tool end to be interrupted. Therefore, the conventional bending type quick female connector 9 is quite impractical.

[0004] In addition, the related components of the conventional bent-type quick female connector 9 are relatively complex in shape and structure, requiring additional processing steps, resulting in high labor costs and being unfavorable for mass production. For example, the connecting pipe 94 is specially designed and is not a standard product. Figure 12 As shown, additional milling or turning is required at portion a, and additional milling or turning of the outer diameter is required at portions b and c, resulting in high manual manufacturing costs.

[0005] Therefore, in summary, the conventional bending type quick female connector 9 needs to be reviewed and improved in terms of operability of positioning and engaging the male connector and providing related structures for overall mass production. Utility Model Content

[0006] Therefore, in view of the operability and mass production issues of the conventional bending quick female connector 9, the primary object of the present invention is to provide a bending quick female connector structure that ensures the engagement operation of the fixed male connector at the rotational angle position; a secondary object of the present invention is to provide a bending quick female connector structure that facilitates overall mass production and reduces its manufacturing cost; and a further object of the present invention is to provide a safety mechanism of the bending quick female connector structure that ensures the engagement of the male and female connectors.

[0007] In order to achieve the above purpose, the utility model uses the following technical means:

[0008] A bending type quick female connector structure, characterized by comprising:

[0009] A connecting seat body having a connecting head connected to a tube body, the connecting head having a connecting opening and communicating with the tube body through the connecting opening, the connecting head also having a pivot hole adjacent to and laterally extending through the connecting opening, and at least one guide groove being provided on the exterior of the tube body;

[0010] A pivot shaft is installed in the pivot hole of the connector. The pivot shaft has a connecting hole corresponding to the connecting opening of the connector. A clamping slot is provided at each end of the pivot shaft.

[0011] a leak-proof ring installed inside the tube body and tightly attached to the connecting hole provided on the pivot shaft;

[0012] A connecting pipe, with a first connecting portion and a second connecting portion respectively provided at two ends thereof, the first connecting portion being inserted into and connected to the interior of the pipe body and abutting against the leak-proof ring, and the second connecting portion being exposed outside the pipe body; and

[0013] A positioning sleeve is inserted into and covers the outside of the tube body to form a space, and a return component is provided in the space. At least one protrusion is provided in the positioning sleeve, and the at least one protrusion is embedded in the at least one guide groove provided in the tube body. One end of the positioning sleeve is provided with two blocks facing the two slots provided at the two ends of the pivot shaft.

[0014] The bent type quick female connector structure is characterized in that: an air release channel is provided at the inlet of the connector corresponding to the male connector.

[0015] The bending type quick female connector structure, wherein: the return component also includes a return spring, a support ring and a buckle and are installed in sequence in the space, and the buckle is installed in a positioning groove provided at the outer end of the tube body.

[0016] The bent-type quick female connector structure has two guide grooves on the tube body and two protrusions corresponding to the guide grooves. The length of the two guide grooves is at least 10 mm, and the two guide grooves are symmetrical to each other in two L or V shapes.

[0017] The bent type quick female connector structure, wherein: the connecting opening of the connector is provided with a protruding edge corresponding to the male connector.

[0018] The bending type quick female connector structure, wherein: an O-ring is provided in the connecting hole provided on the pivot shaft, and a connecting step inner hole is provided at the front end of the corresponding male connector.

[0019] The bent type quick female connector structure, wherein: the leak-proof ring is set as a first-stage ring, and a small-diameter end face thereof is provided with a curved surface to closely fit the connecting hole.

[0020] In the bent-type quick female connector structure, the connecting pipe and the recovery assembly are both standard products, that is, a hexagonal portion is provided on the connecting pipe between the first connecting portion and the second connecting portion.

[0021] The bent type quick female connector structure, wherein: an operation indication area is provided on the outside of the positioning sleeve.

[0022] A bending type quick female connector structure, characterized by comprising:

[0023] An adapter body having an adapter connected to a tube body, the adapter having an adapter opening and communicating with the tube body through the adapter opening, the adapter also having a pivot hole adjacent to and extending transversely through the adapter opening, the tube body having at least one guide groove formed in a V-shape on the exterior thereof;

[0024] A pivot shaft is installed in the pivot hole of the connector. The pivot shaft has a connecting hole corresponding to the connecting opening of the connector. A clamping slot is provided at each end of the pivot shaft.

[0025] a leak-proof ring installed inside the tube body and tightly attached to the connecting hole provided on the pivot shaft;

[0026] A connecting pipe, with a first connecting portion and a second connecting portion respectively provided at two ends thereof, the first connecting portion being inserted into and connected to the interior of the pipe body and abutting against the leak-proof ring, and the second connecting portion being exposed outside the pipe body; and

[0027] A positioning sleeve is inserted into and covers the outside of the tube body to form a space, and a return component is provided in the space. At least one protrusion is provided in the positioning sleeve, and the at least one protrusion is embedded in the at least one guide groove provided in the tube body. One end of the positioning sleeve is provided with two blocks facing the two slots provided at the two ends of the pivot shaft.

[0028] The present invention can achieve the following effects by means of the above technical means:

[0029] 1. This invention utilizes the at least one or two guide slots provided on the tubular body of the connector body to mate with the at least one or two protrusions provided on the positioning sleeve, while also ensuring that the length of the guide slots is sufficient. This ensures that the two latching blocks provided on the positioning sleeve are always aligned with the two latching slots provided at the two ends of the pivot shaft, thereby ensuring the proper engagement of the male connector at the desired rotational angle. This, combined with an operation indicator area on the exterior of the positioning sleeve, further enhances operational effectiveness.

[0030] 2. The connecting pipe, the return assembly and other related components of the present invention are made of standard specifications and do not require additional processing and manufacturing processes. This is not only conducive to mass production of the present invention, but also reduces labor processing costs.

[0031] 3. The two guide grooves provided on the tube body of the connecting seat of the present invention are configured as L-shaped to correspond to the two protrusions provided on the positioning sleeve, thereby forming a safety mechanism to ensure the engagement of the male and female connectors. The safety mechanism can prevent accidental contact with the positioning sleeve and its linear displacement, which would allow the two locking blocks to disengage from the two locking grooves and separate the male and female connectors, resulting in accidental interruption of the operation of the pneumatic tool end. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a three-dimensional appearance diagram of the bent quick female connector structure of the present invention.

[0033] Figure 2 This is a three-dimensional exploded view of the structure of the bent quick female connector of the utility model.

[0034] Figure 3 It is a combined cross-sectional view of the bent quick female connector structure of the present invention.

[0035] Figure 4 For this utility model Figure 3 xx cross-sectional view.

[0036] Figure 5 For this utility model Figure 4 yy cross-sectional view.

[0037] Figure 6 This is another embodiment of the present invention regarding the connecting seat.

[0038] Figure 7 This is a schematic diagram of the bent quick female connector structure of the present invention before the male connector is inserted.

[0039] Figure 8 This is a schematic diagram of the utility model showing the bent-type quick female connector structure inserted into the male connector.

[0040] Figure 9 This is a schematic diagram of the bending type quick female connector structure of the present invention being inserted into the male connector and then being rotated and connected.

[0041] Figure 10 This is a schematic diagram of the positioning sleeve actuating after the bent-type quick female connector structure of the present invention is inserted into the male connector and turned straight.

[0042] Figure 11 This is a combined cross-sectional view of the customary bent-type quick female connector structure.

[0043] Figure 12 This is a schematic diagram of the operation of the traditional bending quick female connector structure.

[0044] Explanation of reference numerals: A-bending quick female connector; 1-connection seat; 11-connection head; 111-connection opening; 1111-protrusion; 112-pivot hole; 12-tube body; 121-guide groove; 1211-transverse groove; 122-positioning groove; 13-air leakage channel; 2-pivot shaft; 21-connection hole; 211-O-ring; 212-connection step inner hole; 22-slot; 3-leakage ring; 31-small diameter end face; 32-curved surface; 4-connecting pipe; 41-first joint; 42- Second joint; 43-hexagonal portion; 5-positioning sleeve; 51-space; 52-return assembly; 521-return spring; 522-support ring; 523-retaining ring; 53-protrusion; 54-block; 55-operation indication area; 6-male connector; 61-groove; 9-customary bent-type quick female connector; 91-connecting seat; 911-guide groove; 92-pivot shaft; 921-slot; 93-leak-proof ring; 94-connecting pipe; 95-positioning sleeve; 951-block; 952-return spring. DETAILED DESCRIPTION

[0045] The utility model provides a bending type quick female connector structure, such as Figure 1 As shown, it is mainly used for the quick connection of air pressure pipelines. Generally speaking, the male connector 6 is connected to the air pressure pipeline at the end of the pneumatic tool, while the bent quick female connector A of the utility model is connected to the air pressure pipeline at the end of the air pressure source. When the male and female connectors are connected, a air pressure pipeline d between the end of the pneumatic tool and the end of the air pressure source is connected, thereby allowing the high-pressure gas from the air pressure source to flow into the pneumatic tool, thereby enabling the pneumatic tool to be operated. After the male and female connectors are disconnected, the high-pressure gas from the end of the air pressure source to the air pressure pipeline at the end of the pneumatic tool is interrupted, and the high-pressure gas in the pneumatic tool is released at the same time, thereby stopping the pneumatic tool from operating. The bent quick female connector A includes: a connecting seat 1, a pivot shaft 2, a leak-proof ring 3, a connecting pipe 4 and a positioning sleeve 5; the above components are described in detail below with reference to the accompanying drawings.

[0046] The connecting seat body 1 is as follows Figures 2 to 6 As shown, a connector 11 is integrally connected to a tube body 12, and the connector 11 is provided with a connecting opening 111 and communicates with the tube body 12, and the connecting opening 111 is provided with a protruding edge 1111 corresponding to the male connector 6, and the protruding edge 1111 can guide the male connector 6 to rotate the angle position to facilitate the connection or disconnection of the male and female connectors; In addition, a pivot hole 112 is provided adjacent to and laterally passes through the bottom of the connecting opening 111, and the outer side of the tube body 12 is provided with at least one guide groove 121, preferably two guide groove; and a vent channel 13 is provided at the inlet of the connector 11 corresponding to the male connector 6, and the vent channel 13 provides when the male and female connectors are disassembled, so that the high-pressure gas in the pneumatic tool can flow smoothly out of the external environment; preferably, the guide groove 121 of the tube body 12 is preferably provided with two, that is, the protrusion 53 corresponding to the guide groove 121 is also provided with two, and the length of the two guide grooves 121 is preferably provided with at least 10 mm or more, and the two guide grooves 121 are provided with two L or V shapes that are symmetrical to each other, such as Figure 2 The two guide grooves 121 of the connecting seat 1 are L-shaped. Figure 6 The two guide grooves 121 of the connecting seat 1 are V-shaped, and the transverse grooves 1211 in the V-shaped guide grooves 121 are shorter and inclined upward.

[0047] The pivot shaft 2 is installed in the pivot hole 112 provided on the connector 11, and the pivot shaft 2 is provided with a connecting hole 21 corresponding to the connecting opening 111 provided on the connector 11, and a card slot 22 is provided at each end of the pivot shaft 2, and the card slot 22 provides a card block 54 provided on the positioning sleeve 5 for insertion; an O-ring 211 is provided in the connecting hole 21 provided on the pivot shaft 2, and a connecting step inner hole 212 is provided corresponding to the front end of the male connector 6, that is, the shape of the connecting step inner hole 212 corresponds to the shape of the front end of the male connector 6, and together with the O-ring 211, when the male and female connectors are connected and the air pressure pipeline is connected, there will be no air leakage.

[0048] The leak-proof ring 3 is installed inside the tube body 12 and is tightly attached to the bottom side of the connecting hole 21 provided on the pivot shaft 2. The leak-proof ring 3 is configured as a first-stage ring, and a curved surface 32 is provided on a small-diameter end face 31 thereof to tightly attach to the bottom side of the connecting hole 21. That is, the upper and lower sides of the leak-proof ring 3 provide airtight conditions between the pivot shaft 2 and the connecting pipe 4.

[0049] The connecting pipe 4 is provided with a first connecting portion 41 and a second connecting portion 42 at its upper and lower ends respectively, wherein the first connecting portion 41 is inserted into and connected to the inside of the tube body 12 and abuts against the leak-proof ring 3, while the second connecting portion 42 is exposed from the tube body 12; preferably, the connecting pipe 4 is a standard specification product (commonly known as: double external thread straight joint or pipe joint) to facilitate the overall mass production of the present invention, that is, a hexagonal portion 43 is further provided on the connecting pipe 4 between the first connecting portion 41 and the second connecting portion 42, and the first connecting portion 41 and the second connecting portion 42 are both set as two-taper external threads (also known as pipe threads).

[0050] The positioning sleeve 5 is inserted into the outside of the tube body 12 to form a space 51, and a return component 52 is provided in the space 51. At least one protrusion 53 is provided in the positioning sleeve 5, preferably two protrusions 53, and the at least one protrusion 53 is embedded in the at least one guide groove 121 provided in the tube body 12. One end of the positioning sleeve 5 is provided with two blocks 54 facing the slots 22 provided at the two ends of the pivot shaft 2, and an operation indication area 55 is provided on the outside of the positioning sleeve 5 to let the user know how to operate the positioning sleeve 5. For example, the operation indication area 55 is set as a downward arrow, so that the user knows to move the positioning sleeve 5 to perform the operation.

[0051] Furthermore, the return assembly 52 further includes a return spring 521, a support ring 522, and a retaining ring 523, which are sequentially installed within the space 51. The retaining ring 523 is mounted in a positioning groove 122 provided adjacent to the outer end of the tube 12. Preferably, the return spring 521, the support ring 522, and the retaining ring 523 are all standard products to facilitate mass production of the present invention. The return spring 521 of the return assembly 52 applies a return force to the positioning sleeve 5, causing the positioning sleeve 5 to undergo linear displacement, thereby positioning the male connector securely to the female connector of the present invention.

[0052] Therefore, the present invention provides a better solution for the positioning of the male and female joints in the bending type quick female joint structure. Please refer to Figures 7 to 10 As shown, when the male and female joints are initially separated, the center line of the connecting hole 21 of the pivot shaft 2 and the air pressure pipe d form an angle q, as shown in FIG. Figure 7As shown, because the connecting hole 21 is not aligned with the air pressure pipe d, the air pressure pipe d is disconnected, interrupting the supply of high-pressure gas from the air pressure source. That is, the connecting hole 21 is aligned with the air leakage channel 13 provided in the connecting base 1. At this time, because the two locking blocks 54 of the positioning sleeve 5 are not inserted into the locking grooves 22 at the two ends of the pivot shaft 2, the outer peripheries of the two ends of the pivot shaft 2 press against the two locking blocks 54, causing the positioning sleeve 5 to compress the return spring 521 to generate a return force and locate in the first position r.

[0053] When the front end of the male connector 6 is inserted into and tightly attached to the connecting opening 111 of the connector 11 and the connecting hole 21 of the pivot shaft 2, the male connector 6 is rotated straight. Figure 8 and Figure 9 As shown, the groove 61 of the male connector 6 is inserted into the protruding edge 1111 of the connecting opening 111, and the connecting hole 21 is aligned with the inlet of the male connector 6 and the air pressure pipe d, so that the air pressure pipe d and the male connector 6 are connected to supply high-pressure gas into the pneumatic tool. Figure 10 As shown, since the two clamping blocks 54 of the positioning sleeve 5 are aligned with the clamping slots 22 at the two ends of the pivot shaft 2, the restoring force of the return spring 521 can push the positioning sleeve 5 from the first position r to the second position s, so that the two clamping blocks 54 are inserted into the two clamping slots 22 to position the rotation angle position of the pivot shaft 2 and the male connector 6, so that the male connector 6 can be firmly connected to the female connector of the utility model, and the air pressure source can stably supply high-pressure gas to the pneumatic tool. For special instructions, please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6 As shown, in the operation of engaging the male and female connectors of the present invention, when the two clamping blocks 54 are engaged in the two clamping grooves 22, if there is a gap e between the two clamping blocks 54 and the two clamping grooves 22, the gap e is sufficient to allow the positioning sleeve 5 to rotate slightly, so that the two protrusions 53 of the positioning sleeve 5 can slightly enter the two transverse grooves 1211 of the two guide grooves 121 provided in the tube body 12, thereby forming a safety mechanism to ensure the engagement of the male and female connectors. This safety mechanism can prevent the linear displacement of the positioning sleeve 5 due to accidental contact, thereby causing the two clamping blocks 54 to disengage from the two clamping grooves 22, resulting in the separation of the male and female connectors, and finally causing the operation of the pneumatic tool end to be accidentally interrupted.

[0054] Conversely, to disconnect the air pressure source from the pneumatic tool, the positioning sleeve 5 is manually rotated and pushed (or simply pushed) from the second position s to the first position r, compressing the return spring 521 to accumulate a return force. This disengages the two latching blocks 54 from the two latching slots 22, and simultaneously reversely rotates the pivot shaft 2 and the male connector 6 by an angle q, aligning the connecting hole 21 of the pivot shaft 2 with the air bleed channel 13 of the connecting base 1. At this point, the high-pressure gas inside the pneumatic tool can flow smoothly to the outside environment through the connecting hole 21 and the air bleed channel 13. This allows the male connector 6 to be removed from the female connector of the present invention, thereby interrupting the supply of high-pressure gas to the pneumatic tool from the air pressure source.

[0055] It should be noted that the above is the technical principle used in the specific embodiment of the present utility model. If the changes made in accordance with the concept of the present utility model do not exceed the spirit covered by the description and drawings of the present utility model, they should be stated within the scope of protection of the present utility model.

Claims

1. A bending type quick female connector structure, characterized in that: Includes: A connecting seat body having a connecting head connected to a tube body, the connecting head having a connecting opening and communicating with the tube body through the connecting opening, the connecting head also having a pivot hole adjacent to and laterally extending through the connecting opening, and at least one guide groove being provided on the exterior of the tube body; A pivot shaft is installed in the pivot hole of the connector. The pivot shaft has a connecting hole corresponding to the connecting opening of the connector. A clamping slot is provided at each end of the pivot shaft. a leak-proof ring installed inside the tube body and tightly attached to the connecting hole provided on the pivot shaft; A connecting pipe, with a first connecting portion and a second connecting portion respectively provided at two ends thereof, the first connecting portion being inserted into and connected to the interior of the pipe body and abutting against the leak-proof ring, and the second connecting portion being exposed outside the pipe body; and A positioning sleeve is inserted into and covers the outside of the tube body to form a space, and a return component is provided in the space. At least one protrusion is provided in the positioning sleeve, and the at least one protrusion is embedded in the at least one guide groove provided in the tube body. One end of the positioning sleeve is provided with two blocks facing the two slots provided at the two ends of the pivot shaft.

2. The bent type quick female connector structure according to claim 1, characterized in that: The adapter is provided with an air release channel at the inlet of the male connector.

3. The bent quick female connector structure according to claim 1 or 2, characterized in that: The return assembly further comprises a return spring, a supporting ring and a buckle which are sequentially installed in the space. The buckle is installed in a positioning groove provided at the outer end of the tube body.

4. The bent type quick female connector structure according to claim 3, characterized in that: The tube body has two guide grooves, and the protrusions corresponding to the guide grooves are also two. The length of the two guide grooves is at least 10 mm. The two guide grooves are symmetrical to each other in two L or V shapes.

5. The bent type quick female connector structure according to claim 3, characterized in that: The connecting opening of the connecting head is provided with a protruding edge corresponding to the male connector.

6. The bent type quick female connector structure according to claim 3, characterized in that: An O-ring is arranged in the connecting hole of the pivot shaft, and a connecting step inner hole is arranged at the front end of the corresponding male joint.

7. The bent type quick female connector structure according to claim 3, characterized in that: The leak-proof ring is a first-stage ring, and a small-diameter end face thereof is provided with a curved surface to be closely attached to the connecting hole.

8. The bent type quick female connector structure according to claim 3, characterized in that: The connecting pipe and the restoring assembly are both standard products, that is, a hexagonal portion is provided between the first connecting portion and the second connecting portion on the connecting pipe.

9. The bent type quick female connector structure according to claim 3, characterized in that: An operation indication area is provided on the exterior of the positioning sleeve.

10. A bending type quick female connector structure, characterized in that: Includes: An adapter body having an adapter connected to a tube body, the adapter having an adapter opening and communicating with the tube body through the adapter opening, the adapter also having a pivot hole adjacent to and extending transversely through the adapter opening, the tube body having at least one guide groove formed in a V-shape on the exterior thereof; A pivot shaft is installed in the pivot hole of the connector. The pivot shaft has a connecting hole corresponding to the connecting opening of the connector. A clamping slot is provided at each end of the pivot shaft. a leak-proof ring installed inside the tube body and tightly attached to the connecting hole provided on the pivot shaft; A connecting pipe, with a first connecting portion and a second connecting portion respectively provided at two ends thereof, the first connecting portion being inserted into and connected to the interior of the pipe body and abutting against the leak-proof ring, and the second connecting portion being exposed outside the pipe body; and A positioning sleeve is inserted into and covers the outside of the tube body to form a space, and a return component is provided in the space. At least one protrusion is provided in the positioning sleeve, and the at least one protrusion is embedded in the at least one guide groove provided in the tube body. One end of the positioning sleeve is provided with two blocks facing the two slots provided at the two ends of the pivot shaft.

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