CN212776062U - Connecting joint - Google Patents

Abstract

The utility model provides a connecting joint, which comprises a joint body, a clamping piece and a male joint, wherein the joint body is of a hollow tubular structure, the first end of the joint body is connected with a pipeline, the second end of the joint body is used for being connected with the male joint, a positioning groove is arranged on the outer side wall of the joint body, a first anti-rotation part is arranged inside the positioning groove, the male joint is detachably sleeved outside the second end of the joint body, a clamping part which extends outwards along the radial direction of the joint body is arranged on the outer side wall of the male joint, the clamping piece is provided with a main body, a first stopping part and a second stopping part, the first stopping part and the second stopping part are connected with the main body, the first stopping part and the second stopping part both extend towards the center of the joint body, the second stopping part is arranged on one side of the clamping part, which is far away from the first end of the joint body, the second anti-rotation part is used for being clamped with the, so as to restrict the relative rotation between the joint body and the retainer and prevent the liquid leakage.

Description

Connecting joint

Technical Field

The utility model relates to a hydraulic system technical field especially relates to a connector.

Background

The pipe joint is a part for connecting a pipeline or installing the pipeline on a hydraulic component in a hydraulic system, and generally comprises a body, a locking clamp, a male joint and the like.

Present coupling, the locking card wherein includes the locking card body, set up two first joint portions and two second joint portions of setting on the locking card body is interior to be taken turns to at the locking card body, two first joint portions and two second joint portions distribute along the axial of locking card body, two first joint portions are used for connecting the locking card body and connect the body, two second joint portions are used for male joint and this body coupling of locking card, in order to realize male joint and the connection that connects the body, wherein, the interior week of first joint portion is connected with the cooperation of connecting the body.

Therefore, in the using process of the existing pipe joint, the lock clamp and the joint body are easy to rotate relatively, so that liquid leakage is caused, and the normal work of a hydraulic system is influenced.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a connector can realize clamping parts and the reliable connection that connects the body, prevents clamping parts and connects and takes place relative rotation between the body, influences hydraulic system's normal work.

The utility model provides a connecting joint, which comprises a joint body, a clamping fastener and a male joint;

the joint body is of a hollow tubular structure, a first end of the joint body is connected with the pipeline, a second end of the joint body is used for being connected with the male joint, a positioning groove is formed in the outer side wall of the joint body, and a first anti-rotation part is arranged inside the positioning groove;

the male joint is detachably sleeved outside the second end of the joint body, and a clamping part extending outwards along the radial direction of the joint body is arranged on the outer side wall of the male joint;

the clamping and stopping piece is provided with a main body, a first stopping part and a second stopping part, the first stopping part and the second stopping part are connected to the main body, the first stopping part and the second stopping part both extend to the center of the joint body, and the second stopping part stops at one side of the clamping and connecting part, which is far away from the first end of the joint body;

the first stopping part is provided with a second anti-rotation part which is used for being clamped with the first anti-rotation part so as to limit the relative rotation between the joint body and the clamping and stopping piece.

As an optional embodiment, the main body is annular, and the main body extends along the axial direction of the joint body, and the first stopping portion and the second stopping portion are both connected to the inner side wall of the main body.

As an alternative embodiment, the first stopping portion is annular;

the first rotation preventing part is arranged at the groove bottom of the positioning groove, and the second rotation preventing part is positioned on the circumferential inner edge of the first stopping part.

As an alternative embodiment, one of the first rotation preventing part and the second rotation preventing part is a groove extending along the axial direction of the joint body, and the other one is a protrusion capable of being clamped in the groove.

As an optional implementation manner, the first anti-rotation portion and the second anti-rotation portion are both multiple and are arranged at intervals along the circumferential direction of the joint body, and the first anti-rotation portion and the second anti-rotation portion are correspondingly arranged.

As an alternative embodiment, the side of the main body has an opening penetrating through the main body in the axial direction of the joint body, and the joint body is engaged with the inside of the main body via the opening.

As an optional embodiment, the first stopping portion is an open ring, and the first stopping portion is connected to the inner side wall of the main body through a connecting rib, and the opening direction of the first stopping portion is the same as the opening direction of the main body.

As an optional implementation manner, the inner edge of the first stopping portion includes a first matching section and a second matching section, and both the first matching section and the second matching section match with the shape of the outer side wall of the connector body, so that the connector body is alternatively clamped with the first matching section or the second matching section;

the center of the second mating segment is located between the center of the first mating segment and the opening.

As an alternative embodiment, when the joint body and the second mating segment are clamped, a projection of the male joint in the axial direction of the joint body and a projection of the second stopper portion in the axial direction do not overlap each other.

As an alternative embodiment, the connector further comprises a dust-proof sleeve, and when the male connector is not connected with the connector body, the dust-proof sleeve can be arranged outside the second end of the connector body to prevent dust from entering the connector body.

The utility model provides a connecting joint, which comprises a joint body, a clamping piece and a male joint, wherein the joint body is a hollow tubular structure, the first end of the joint body is connected with a pipeline, the second end of the joint body is used for being connected with the male joint, a positioning groove is arranged on the outer side wall of the joint body, a first anti-rotation part is arranged inside the positioning groove, the male joint is detachably sleeved outside the second end of the joint body, a clamping part which extends outwards along the radial direction of the joint body is arranged on the outer side wall of the male joint, the clamping piece is provided with a main body, a first stopping part and a second stopping part, the first stopping part and the second stopping part are connected with the main body, the first stopping part and the second stopping part both extend towards the center of the joint body, the second stopping part is arranged on one side of the clamping part which is deviated from the first end of the joint body, a second anti-rotation part is arranged on the first stopping part, and the, connect the body and block the relative rotation between the piece with the restriction, through set up the first portion of preventing changeing on connecting the body, set up the second on first backstop portion and prevent changeing the portion, make the second prevent changeing the portion and prevent changeing the portion block with first and be connected, connect the body and block the relative rotation between the piece with the restriction, thereby can prevent liquid leakage, guarantee hydraulic system's normal work, the lock card of having solved current coupling and connect between the body and easily take place relative rotation, lead to liquid leakage, influence the problem of hydraulic system normal work.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic perspective view of a latch in a conventional pipe joint;

fig. 2 is a schematic plan view illustrating a latch of a conventional pipe joint;

fig. 3 is a cross-sectional view of a connection joint according to an embodiment of the present invention;

FIG. 4 is a state view of the coupling fitting according to an embodiment of the present invention when no locking member is installed;

fig. 5 is a schematic perspective view of a male joint in a connection joint according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a locking piece in a connection joint according to an embodiment of the present invention;

fig. 7 is a schematic view illustrating an installation relationship between the locking piece and the male joint in the joint according to the embodiment of the present invention;

fig. 8 is a schematic view illustrating a positional relationship between the locking piece and the male joint when the locking piece is not connected in the joint according to the embodiment of the present invention;

fig. 9 is a state view of the engaging member of the coupling joint according to the embodiment of the present invention not coupled to the male joint;

fig. 10 is a schematic view of a connection relationship between a dust boot and a joint body in the connection joint according to the embodiment of the present invention;

fig. 11 is a partial structural view of fig. 10.

Description of reference numerals:

1-a joint body;

11-a positioning groove;

12-bamboo segments;

13-a first limiting plate;

14-mounting the shaft;

141-a first anti-rotation part;

15-a second limiting plate;

16-a connecting segment;

161-ring groove;

2-a retainer;

21-a body;

211-an opening;

212-a guide;

22-a first stop;

221-a first mating segment;

2211-a second rotation prevention section;

222-a second mating segment;

23-a second stop;

24-connecting ribs;

25-notch;

3-a male joint;

31-a snap-in part;

32-connecting sleeves;

4-sealing ring;

and 5, a dustproof sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the description of the present invention, the terms "first" and "second" are only used for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The pipe joint is a part for connecting a pipeline or installing the pipeline on a hydraulic component in a hydraulic system, and generally comprises a body, a locking clamp, a male joint and the like.

As shown in fig. 1 and 2, fig. 1 is a schematic perspective view of a latch in a conventional pipe joint. Fig. 2 is a schematic plan view of a latch in a conventional pipe joint. The existing pipe joint, wherein the locking clip 100 includes a locking clip body 10, two first clamping portions 20 arranged on the inner periphery of the locking clip body 10 and two second clamping portions 30 arranged on the inner periphery of the locking clip body 10, the two first clamping portions 20 and the two second clamping portions 30 are distributed along the axial direction of the locking clip body 10, the two first clamping portions 20 are used for connecting the locking clip body 10 and the joint body, the two second clamping portions 30 are used for connecting the male joint with the locking clip body 10, so as to realize the connection of the male joint with the joint body, wherein the inner periphery of the first clamping portions is connected with the joint body in a matching manner, however, in the using process of the existing pipe joint, relative rotation is easy to occur between the locking clip 100 and the joint body, so that liquid leakage is caused, and the normal work of a hydraulic system is influenced.

Therefore, the utility model provides a connector can make to connect the body and stop the piece and be connected reliably, prevents to connect the body and stop the relative rotation between the piece, avoids liquid to leak, guarantees hydraulic system's normal work.

It should be noted that the connecting joint provided by the embodiment can be applied to a hydraulic system of a heavy truck to realize connection between a fuel tank and a fuel pipe.

As shown in fig. 3-11, fig. 3 is a cross-sectional view of a connection joint according to an embodiment of the present invention. Fig. 4 is a state diagram of the connection joint according to the embodiment of the present invention when the locking piece is not mounted. Fig. 5 is a schematic perspective view of a male joint in a connection joint according to an embodiment of the present invention. Fig. 6 is a schematic perspective view of a locking piece in a joint according to an embodiment of the present invention. Fig. 7 is a schematic view illustrating an installation relationship between the locking piece and the male joint in the joint according to the embodiment of the present invention. Fig. 8 is a schematic view showing a positional relationship between the locking piece and the male joint in the joint according to the embodiment of the present invention when the locking piece and the male joint are not connected. Fig. 9 is a state diagram of the coupling joint according to the embodiment of the present invention in which the locking piece and the male joint are not coupled to each other. Fig. 10 is a schematic view of a connection relationship between a dust boot and a joint body in a connection joint according to an embodiment of the present invention. Fig. 11 is a partial structural view of fig. 10.

As shown in fig. 3-6, an embodiment of the present invention provides a connection joint, including a joint body 1, a clamping part 2 and a male joint 3, wherein the joint body 1 is a hollow tubular structure, a first end of the joint body 1 is connected to a pipeline, a second end of the joint body 1 is used for being connected to the male joint 3, a positioning groove 11 is provided on an outer side wall of the joint body 1, a first rotation-preventing portion 141 is provided inside the positioning groove 11, the male joint 3 is detachably sleeved outside a second end of the joint body 1, a clamping portion 31 extending radially outward along the joint body 1 is provided on an outer side wall of the male joint 3, the clamping part 2 has a main body 21, a first stopping portion 22 and a second stopping portion 23, the first stopping portion 22 and the second stopping portion 23 are connected to the main body 21, the first stopping portion 22 and the second stopping portion 23 both extend toward a center of the joint body 1, the second stopping portion 23 stops at a side of the clamping portion 31 departing from the first end of the joint body 1, the first stopping portion 22 is provided with a second rotation preventing portion 2211, and the second rotation preventing portion 2211 is used for being clamped with the first rotation preventing portion 141 to limit the relative rotation between the joint body 1 and the clamping piece 2.

Specifically, the first end that connects body 1 is bamboo joint section 12, the first end of bamboo joint section 12 links to each other with oil pipe, the second end of bamboo joint section 12 sets up the first limiting plate 13 that connects gradually, installation axle 14, second limiting plate 15 and linkage segment 16, bamboo joint section 12, first limiting plate 13, installation axle 14, second limiting plate 15 and linkage segment 16 all cavity and concentric the setting, first limiting plate 13, installation axle 14 and second limiting plate 15 form positioning groove 11, first portion 141 of preventing changeing is located the periphery wall of installation axle 14, male joint 3 installs on linkage segment 16.

In this embodiment, the oil pipe is a nylon pipe, it should be noted that in the specific implementation manner of this embodiment, the purpose of this embodiment can be achieved as long as the oil pipe is a flexible pipe, and here, the specific type of the oil pipe is not limited.

Specifically, because the first end that connects body 1 is bamboo joint section 12, consequently, attach fitting will play the effect of showing the pull-out effect that increases oil pipe when being connected with oil pipe for be connected compactly and be difficult for breaking away from between oil pipe and the attach fitting, can effectively prevent the leakage of fluid.

In this embodiment, the outer diameter of the first end of the bamboo joint section 12 is smaller than the outer diameter of the second end of the bamboo joint section 12, the outer diameter of the second end of the bamboo joint section 12 is smaller than the outer diameter of the first limiting plate 13, the outer diameter of the mounting shaft 14 is smaller than the outer diameter of the second end of the bamboo joint section 12, the outer diameter of the second limiting plate 15 is smaller than the outer diameter of the first limiting plate 13, the outer diameter of the second limiting plate 15 is larger than the outer diameter of the second end of the bamboo joint section 12, and the outer diameter of the connecting section 16 is equal to the outer diameter.

In a specific embodiment of the present embodiment, the retainer 2 is an elastic member.

As shown in fig. 3, in order to improve the sealing performance of the connection joint provided in the present embodiment, a seal ring 4 is provided between the male joint 3 and the connection section 16, and the seal ring 4 is fitted in an annular groove 161 located on the outer periphery of the connection section 16, so that liquid leakage can be prevented.

Optionally, the sealing ring 4 is an O-shaped sealing ring, an inner periphery of the sealing ring 4 abuts against a groove bottom of the annular groove 161, and an outer periphery of the sealing ring 4 abuts against an inner periphery of the male joint 3.

In this embodiment, the male joint 3 further includes a connecting sleeve 32, the connecting sleeve 32 is sleeved on the connecting section 16, the periphery of the sealing ring 4 is pressed against the inner wall of the connecting sleeve 32, the clamping portion 31 is arranged on the periphery of the connecting sleeve 32, and the clamping portion 31 is located on the end portion of the connecting sleeve 32 close to the clamping part 2.

In the present embodiment, the snap-in portion 31 is an annular plate.

In the connection joint provided by the embodiment, if the connection joint needs to be used and installed, firstly, the sealing ring 4 is installed in the annular groove 161; then, the male joint 3 is installed on the second end of the joint body 1, specifically, the connecting sleeve 32 is sleeved on the connecting section 16, so that the clamping portion 31 abuts against one end of the second limiting plate 15 away from the joint body 1; then, install clamping part 2 in the positioning groove 11 of joint body 1, specifically, establish main part 21 cover on installation axle 14 for second backstop portion 23 butt is on the one side of deviating from joint body 1 first end of joint portion 31, and makes second prevent changeing portion 2211 and first prevent changeing portion 141 looks block, with the relative rotation between restriction joint body 1 and clamping part 2, thereby can guarantee to connect the reliable connection between body 1 and clamping part 2, prevent that liquid from taking place to leak.

In the specific embodiment of this embodiment, the main body 21 is annular, and the main body 21 extends along the axial direction of the joint body 1, and the first stopping portion 22 and the second stopping portion 23 are both connected to the inner side wall of the main body 21, and when the clamping piece 2 is installed on the joint body 1, the main body 21 is sleeved on the outer side of the second limiting plate 15.

As an alternative embodiment of the present embodiment, the second blocking portion 23 has a connection surface 231, a first extending surface 232, a second extending surface 233 and a transition surface 234, the connection surface 231 is connected to the inner side wall of the main body 21, the first extending surface 232 and the second extending surface 233 both extend toward the center of the main body 21, the first extending surface 232 and the second extending surface 233 intersect at a side close to the center of the main body 21, the transition surface 234 connects the first extending surface 232 and the second extending surface 233, and the second extending surface 233 can abut on a side of the clamping portion 31 away from the first end of the joint body 1 to connect the male joint 3 and the clamping member 2, so as to connect the male joint 3 and the joint body 1.

As shown in fig. 6 and 7, in the present embodiment, two second stopping portions 23 are disposed on the inner side wall of the main body 21, and the two second stopping portions 23 are disposed in pairs.

As an alternative embodiment, the first stopping portion 22 is annular, the first rotation preventing portion 141 is disposed at the bottom of the positioning groove 11, and the second rotation preventing portion 2211 is located on the inner circumferential edge of the first stopping portion 22.

In some embodiments, one of the first anti-rotation portion 141 and the second anti-rotation portion 2211 is a groove extending along the axial direction of the joint body 1, and the other is a protrusion capable of being clamped in the groove, and the protrusion is engaged with the corresponding groove to mount the clamping unit 2 on the joint body 1 and connect the male joint 3 with the joint body 1.

In a specific embodiment of this embodiment, the first rotation-preventing portion 141 is a groove, and the second rotation-preventing portion 2211 is a protrusion.

Optionally, the protrusion is a columnar structure.

In this embodiment, the first anti-rotation portions 141 and the second anti-rotation portions 2211 are both multiple and are arranged at intervals along the circumferential direction of the joint body 1, and the first anti-rotation portions 141 and the second anti-rotation portions 2211 are correspondingly arranged.

Specifically, the first rotation prevention portions 141 are uniformly distributed on the outer periphery of the mounting shaft 14, and the second rotation prevention portions 2211 are uniformly distributed on the inner edge of the first stopping portion 22.

In some embodiments, the side of the main body 21 has an opening 211 penetrating the main body 21 in the axial direction of the joint body 1, the mounting shaft 14 is engaged with the inside of the main body 21 via the opening 211, and by providing the opening 211, not only can a guiding function be provided for the installation of the locking piece 2, but also the expansion degree of the locking piece 2 can be increased, and the installation of the locking piece 2 can be facilitated.

As an alternative embodiment of the present embodiment, the guide portions 212 are provided on both sides of the opening 211, the two guide portions 212 are provided in pairs, the guide portions 212 extend in the radial direction of the main body 21, and the thickness of the guide portions 212 in the axial direction of the main body 21 is equal to the axial thickness of the main body 21, and the two guide portions 212 are provided, so that not only can a further guiding function be provided for the installation of the locking piece 2, but also the strength of the main body 21 can be increased, the service life of the main body 21 can be prolonged, and further the service life of the locking piece 2 can be prolonged.

In the present embodiment, the first stopping portion 22 is an open ring, the first stopping portion 22 is connected to the inner side wall of the main body 21 through the connecting rib 24, the opening direction of the first stopping portion 22 is the same as the opening direction of the main body 21, and the opening of the first stopping portion 22 is communicated with the opening of the main body 21, so that the first stopping portion 22 is engaged with the mounting shaft 14.

In a specific embodiment of this embodiment, the first stopping portion 22 is connected to the inner side wall of the main body 21 through a plurality of connecting ribs 24, the plurality of connecting ribs 24 are annularly distributed on the circumferential outer edge of the first stopping portion 22 with the axis of the first stopping portion 22 as a central line, one end of the connecting rib 24 is connected to the outer circumferential wall of the first stopping portion 22, the other end of the connecting rib 24 extends to the outer side of the first stopping portion 22 along the radial direction of the first stopping portion 22, and the other end of the connecting rib 24 is connected to the inner side wall of the main body 21, so as to connect the first stopping portion 22 to the main body 21.

In the present embodiment, the connecting rib 24 is integrally formed with the first blocking portion 22, so as to facilitate the processing of the first blocking portion 22.

In the specific embodiment of this embodiment, 3 connecting ribs 24 are disposed on the circumferential outer edge of the first stopping portion 22, an included angle between adjacent connecting ribs 24 is 90 °, a gap 25 is formed between adjacent connecting ribs 24, the first stopping portion 22 and the main body 21, the gap 25 corresponds to the second stopping portion 23, and a projection of the second stopping portion 23 in the axial direction of the clamping member 2 coincides with a partial projection of the gap 25 in the axial direction of the clamping member 2.

Optionally, the inner edge of the first blocking portion 22 includes a first matching section 221 and a second matching section 222, the first matching section 221 and the second matching section 222 are both matched with the outer sidewall of the mounting shaft 14 in shape, so that the joint body 1 is selected to be clamped with the first matching section 221 or the second matching section 222, the center of the second matching section 222 is located between the center of the first matching section 221 and the opening 211, and the second rotation preventing portions 2211 are located on the inner wall of the first matching section 221.

Specifically, the opening of the first blocking portion 22 is opened on one side of the second fitting section 222.

In the present embodiment, 3 connecting ribs 24 are connected between the first fitting section 221 and the main body 21.

Specifically, when the first matching section 221 and the mounting shaft 14 are clamped with each other, the clamping stop 2 is connected with the joint body 1, and the male joint 3 is connected with the joint body 1; when the second fitting section 222 and the mounting shaft 14 are engaged with each other, the male connector 3 is separated from the retainer 2, and the male connector 3 is separated from the connector body 1.

In this embodiment, when installation axle 14 and second cooperation section 222 joint, male joint 3 is at the ascending projection of joint body 1 axial and second backstop portion 23 projection in this orientation each other do not overlap, make second backstop portion 23 and joint portion 31 take place the dislocation, no longer the block connection, at this moment, male joint 3 and stop piece 2 separation, make male joint 3 and joint body 1 separation, can pull down male joint 3, be convenient for next time to the joint that this embodiment provided reuse.

As shown in fig. 10 and 11, the connection joint that this embodiment provided still includes dirt proof boot 5, and when male joint 3 was not connected with joint body 1, dirt proof boot 5 can be installed and prevent the dust entering in connecting section 16 outside and connect body 1, and in addition, dirt proof boot 5 can also play the safeguard effect, avoids colliding with taking place in the in-process of carrying connection joint, is convenient for use connection joint.

Specifically, when the joint is shipped to a user, the dust boot 5 is installed outside the joint section 16 to protect the joint body 1 and prevent dust from entering the joint body 1.

In the specific implementation manner of this embodiment, one end of the dust-proof sleeve 5 is a closed end, the other end of the dust-proof sleeve 5 is an open end, and the closed end of the dust-proof sleeve 5 is matched with one end of the connecting section 16 far away from the bamboo segment 12.

Specifically, the service condition of the connection joint provided by this embodiment is as follows:

when the connection joint provided by the embodiment leaves the factory, the connection joint needs to be assembled, the sealing ring 4 is firstly installed in the annular groove 161, and then the dust-proof sleeve 5 is installed outside the connection section 16; when the connecting joint needs to be used, the dustproof sleeve 5 is detached from the connecting section 16, and then the male joint 3 is sleeved on the connecting section 16, specifically, the connecting sleeve 32 is sleeved on the connecting section 16, so that the end part of the clamping part 31 close to the first end of the joint body 1 abuts against the second limiting plate 15; after that, the clamping part 2 is installed on the joint body 1, and the clamping part 2 is clamped and connected with the male joint 3, so as to install the male joint 3 on the joint body 1, specifically, the clamping part 2 is pushed inwards manually, under the guiding action of the opening 211 and the opening of the first stopping part 22, the first matching section 221 is clamped and connected with the installation shaft 14, at this time, the second stopping part 23 is clamped and connected with the clamping part 31, and the assembly of the connection joint is completed.

When some parts of the connecting joint need to be replaced, the connecting joint needs to be disassembled, firstly, the clamping part 2 is pulled outwards manually to enable the second matching section 222 to be clamped and connected with the mounting shaft 14, at the moment, the second stopping portion 23 and the clamping portion 31 are dislocated, the male joint 3 is disassembled from the connecting section 16, the sealing ring 4 is taken out, then the clamping part 2 is pulled out completely, the disassembling of the connecting joint can be completed, and the parts can be replaced.

The connecting joint provided by the embodiment comprises a joint body 1, a clamping part 2 and a male joint 3, wherein the joint body 1 is of a hollow tubular structure, the first end of the joint body 1 is connected with a pipeline, the second end of the joint body 1 is used for being connected with the male joint 3, a positioning groove 11 is arranged on the outer side wall of the joint body 1, a first anti-rotation part 141 is arranged inside the positioning groove 11, the male joint 3 is detachably sleeved outside the second end of the joint body 1, a clamping part 31 extending outwards along the radial direction of the joint body 1 is arranged on the outer side wall of the male joint 3, the clamping part 2 is provided with a main body 21, a first stopping part 22 and a second stopping part 23, the first stopping part 22 and the second stopping part 23 are connected to the main body 21, the first stopping part 22 and the second stopping part 23 both extend towards the center of the joint body 1, the second stopping part 23 is stopped on the side of the clamping part 31 departing from the first, the first blocking portion 22 is provided with a second rotation-preventing portion 2211, and the second rotation-preventing portion 2211 is used for being clamped with the first rotation-preventing portion 141 to limit the relative rotation between the joint body 1 and the clamping fastener 2, so that the liquid leakage can be prevented, and the normal operation of the hydraulic system is ensured.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A connector fitting, comprising a fitting body, a retainer and a male fitting;

the joint body is of a hollow tubular structure, a first end of the joint body is connected with a pipeline, a second end of the joint body is used for being connected with the male joint, a positioning groove is formed in the outer side wall of the joint body, and a first anti-rotation part is arranged inside the positioning groove;

the male joint is detachably sleeved outside the second end of the joint body, and a clamping part extending outwards along the radial direction of the joint body is arranged on the outer side wall of the male joint;

the clamping and stopping piece is provided with a main body, a first stopping part and a second stopping part, the first stopping part and the second stopping part are connected to the main body, the first stopping part and the second stopping part both extend towards the center of the joint body, and the second stopping part stops at one side of the clamping and connecting part, which is far away from the first end of the joint body;

the first stopping part is provided with a second rotation preventing part which is used for being clamped with the first rotation preventing part so as to limit the relative rotation between the joint body and the clamping and stopping piece.

2. The connector of claim 1, wherein the main body is annular and extends in an axial direction of the connector body, and the first stopper portion and the second stopper portion are connected to an inner sidewall of the main body.

3. The connection fitting according to claim 2, wherein the first stop is annular;

the first anti-rotation part is arranged at the groove bottom of the positioning groove, and the second anti-rotation part is positioned on the circumferential inner edge of the first stopping part.

4. The connection fitting according to claim 3, wherein one of the first rotation preventing portion and the second rotation preventing portion is a groove extending in an axial direction of the fitting body, and the other is a protrusion which is snapably provided in the groove.

5. The connector according to claim 4, wherein the first rotation preventing portion and the second rotation preventing portion are both multiple and arranged at intervals along a circumferential direction of the connector body, and the first rotation preventing portion and the second rotation preventing portion are correspondingly arranged.

6. The connection fitting according to claim 5, wherein an opening penetrating the main body in an axial direction of the fitting body is provided on a side of the main body, and the fitting body is engaged with an inner side of the main body via the opening.

7. The coupling joint according to any one of claims 1 to 6, wherein the first stopper is an open ring, and the first stopper is connected to an inner side wall of the main body by a connecting rib, and an opening direction of the first stopper coincides with an opening direction of the main body.

8. The connector sub of claim 6, wherein the inner edge of the first stop includes a first engagement section and a second engagement section, and wherein the first engagement section and the second engagement section are both shaped to match an outer sidewall of the connector body, such that the connector body is alternatively snapped into engagement with the first engagement section or the second engagement section;

the center of the second mating segment is located between the center of the first mating segment and the opening.

9. The connector according to claim 8, wherein when the connector body and the second engagement section are engaged, a projection of the male connector in an axial direction of the connector body and a projection of the second stopper portion in the axial direction do not overlap with each other.

10. The connection fitting of claim 9, further comprising a dust boot mountable outside the second end of the fitting body to prevent dust from entering the fitting body when the male fitting is not connected to the fitting body.

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