CN206988620U - Prevent the adapter component that flexible pipe surprisingly comes off - Google Patents

Abstract

The utility model provides an adapter assembly for preventing hoses from falling off accidentally, and relates to an adapter assembly for hydraulic equipment, which specifically includes a blue ring, a seamless steel pipe, a tail core and an adapter. The seamless steel pipe is connected to the flange ring and the tail Between the cores, one end of the tail core and the seamless steel pipe is welded together by friction welding, and the other end of the seamless steel pipe and the flange ring are fixed together by friction welding, and a locking strip is arranged on the adapter, and the tail core There is a groove on the top, and the locking strip is matched with the groove to connect the adapter with the tail core; through the design of the adapter, the adapter assembly can adapt to hoses of different sizes, and when the size of the hose is modified , By replacing the adapter, the hose and the adapter assembly can be reliably connected, and through the structural optimization design, the adapter assembly is more convenient to cooperate with the external rubber hose and sleeve.

Description

Adapter Assembly to Prevent Accidental Disconnection of Hose

technical field

The utility model relates to the field of hydraulic equipment, in particular to an adapter assembly that can be used on hydraulic equipment to prevent hoses from falling off accidentally.

Background technique

The adapter assembly is an important part that connects hydraulic equipment and rubber hoses. It generally includes an integral hose connection section and a fixed connection port for screwing into the threaded hole of the hydraulic equipment. Usually, the hose connection The connection port of the section is provided with a fixing device to prevent the hose from slipping off from the hose connection section, but when installing the fixing device, it is cumbersome and wastes a lot of working time.

In the prior art, a hose connection section has been proposed, and the technical solution adopted is that, in the hose connection section, around the port connected to the hose, there are several sets of anti-slip rings, wherein the outer end surface of each set of anti-slip rings Inclined setting, a fixed ring is set on the fixed connection port connected to the hydraulic equipment, and the upper and lower parts of the fixed ring are respectively connected to the clamp cover through torsion springs, and the hose and the adapter assembly are reliably connected through the clamp cover and the anti-dropping ring, but adopt The device with this structure cannot realize the fast installation and disengagement of the hose, and the size of the relevant hose must match the hose connection section on the adapter, so as to prevent the hose from being reliably connected to the connection section.

Therefore, it is necessary to further improve the structure of the existing adapter assembly to overcome the above-mentioned technical defects.

Utility model content

The purpose of the utility model is to provide an adapter assembly used for hydraulic equipment to prevent the hose from accidentally falling off, which is reliable in hose connection and convenient in clamping.

The above objects of the utility model are achieved by the technical features of the independent claims, and the dependent claims develop the technical features of the independent claims in an alternative or advantageous manner.

For reaching above-mentioned purpose, the technical scheme that the utility model adopts is as follows:

An adapter assembly for preventing hoses from falling off accidentally, the adapter assembly includes a flange ring, a seamless steel pipe, a tail core, and an adapter, wherein the seamless steel pipe is arranged between the flange ring and the tail core, and the tail core and the tail core One end of the seamless steel pipe is fixed together by friction welding, and the other end of the seamless steel pipe and the flange ring are fixed together by friction welding;

The tail core is close to one end of the seamless steel pipe, and an arc edge is formed on the outside, which is welded together with one end of the seamless steel pipe by friction welding, and the part of the tail core connected with the arc edge forms a protruding stepped shaft , a barbed tooth is formed between the outer end surface of the end of the tail core away from the seamless steel pipe and the stepped shaft, the tooth profile of the barbed tooth faces the direction of the seamless steel tube, and the tooth profile angle is 30° to 60°;

A groove is provided between the inverted tooth and the stepped shaft, the groove is formed by a bottom and two sides connected thereto, wherein the bottom and the inner opening of the connecting position of the two sides form an arc connection , wherein the vertical distance between the upper surface of the side near the end of the seamless steel pipe and the bottom is greater than the vertical distance between the upper surface of the side far from the end of the seamless steel pipe and the bottom;

The adapter is provided with a tail core connection section and a hose connection section, the tail core connection section is provided with a first through hole inside, and the hose connection section is provided with a second through hole inside, wherein the diameter of the first through hole is greater than the diameter of the second through hole;

A plurality of first through holes are uniformly distributed along the outer circumference of the tail core connecting section, a connecting portion is arranged in the first through hole, and the connecting portion passes through the first through hole and is located in the first through hole, The connecting part matches the groove provided on the tail core;

Wherein, the connecting part includes a fastening ring, a guide post, a locking strip, and a spring, wherein:

The fastening ring is sleeved on the connecting section of the tail core, and a second through hole opposite to the position of the first through hole is arranged on the fastening ring, and guide posts are arranged in the first through hole and the second through hole, A step is arranged on the upper part of the guide post, and the size of the step is larger than the size of the second through hole; a spring is sleeved on the guide post at the connecting section between the fastening ring and the tail core, and one end of the spring is connected to the fastening ring Contact, the other end of the spring is in contact with the connecting section of the tail core; the lower part of the guide post is hinged with a locking bar through the first through hole, and the locking bar is in a state of contact and separation with the groove provided on the tail core;

The hose connection section is provided with a first external thread section close to the tail core connection section, and a second external thread section is provided between the first external thread section and the front end surface of the hose connection section, and the second external thread section It is a tapered thread, and the direction of rotation of the first external thread segment and the second external thread segment is inconsistent;

A hose is sleeved on the hose connection section, and a first nut and a second nut are connected to the hose, wherein the first nut matches with the first external thread section, and the second nut cooperates with the second external thread section match.

Further, the aforementioned first external thread is a trapezoidal thread.

Further, the aforementioned second through hole and the body part of the adapter form a transition slope, and the included angle between the slope and the edge line of the second through hole is 45°.

Further, the aforementioned first external thread is a right-handed thread, and the second external thread is a left-handed thread.

Further, the size of the aforementioned first through hole is smaller than the size of the stepped shaft.

Further, the aforementioned flange ring includes a flange ring body and an inclined transition part integrally formed with the flange ring body, and the inclined transition part is fixed with the other end of the seamless steel pipe by friction welding. The internal through holes of the flange ring body and the inclined transition portion have the same size as the pipe holes of the seamless steel pipe.

Further, the inclination angle of the inclined transition portion of the aforementioned flange ring is in the range of 30-80°.

Further, the inclination angle of the inclined transition portion of the aforementioned flange ring is 62°.

Further, at least one annular groove is provided on the front end surface of the body of the aforementioned flange ring.

The adapter assembly proposed by the utility model can adjust the size of the hose according to the use environment by connecting the adapter on the tail core, avoiding the need to adjust the size of the hose if the size of the hose cannot be adjusted in the prior art. It is necessary to replace the flange ring, seamless steel pipe, and tail core together, and the waste is serious, and through structural optimization, the adapter can be quickly connected and separated from the tail core, and the connection is reliable; because the adapter is provided with two different rotations Threads in the same direction, so that the hose can be reliably connected to the adapter. When vibration occurs, because the two threads have opposite directions of rotation, it can ensure that one of the nuts is reliably connected to the adapter under any circumstances, so that the hose does not will slip off the adapter.

It should be understood that all combinations of the foregoing concepts as well as additional concepts described in more detail below may be considered part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent. Additionally, all combinations of claimed subject matter are considered a part of the inventive subject matter of the present disclosure.

The foregoing and other aspects, embodiments and features of the teachings of the present invention can be more fully understood from the following description when taken in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and/or beneficial effects of the exemplary embodiments, will be apparent from the following description, or learned by practice of specific embodiments according to the teachings of the present invention.

Description of drawings

The figures are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like reference numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of the various aspects of the invention will now be described by way of example with reference to the accompanying drawings, in which:

Fig. 1 is a schematic structural diagram of an adapter assembly.

Fig. 2 is a structural schematic diagram of the tail core.

Fig. 3 is a schematic diagram of the structure of the adapter.

Fig. 4 is a schematic structural view of the connection part provided in the adapter.

Detailed ways

In order to better understand the technical content of the utility model, specific embodiments are given and described as follows in conjunction with the accompanying drawings.

Aspects of the invention are described in this disclosure with reference to the accompanying drawings, in which a number of illustrated embodiments are shown. The embodiments of the present disclosure are not necessarily intended to include all aspects of the present invention. It should be understood that the various concepts and embodiments described above, as well as those concepts and embodiments described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not Not limited to any implementation. In addition, some aspects disclosed in this utility model can be used alone or in any appropriate combination with other aspects disclosed in this utility model.

As shown in Figures 1 to 4, the adapter assembly to prevent the hose from accidentally falling off, the adapter assembly includes a flange ring 1, a seamless steel pipe 2, a tail core 3, and an adapter 4, wherein the seamless steel pipe 2 is set in the French Between the flange ring 1 and the tail core 3, the tail core 3 and one end of the seamless steel pipe 2 are fixed together by friction welding, and the other end of the seamless steel pipe 2 is fixed together with the flange ring 1 by friction welding.

As shown in Figure 2, the tail core 3 is adjacent to one end of the seamless steel pipe 2, and an arc edge 3a is formed on its outside, which is welded together with one end of the seamless steel pipe 2 by friction welding, and the tail core 3 is connected to the arc The part where the edge 3a is connected forms a protruding stepped shaft 3d, and an inverted tooth 3c is formed between the outer end surface of the tail core 3 away from the end of the seamless steel pipe 2 and the stepped shaft 3d, and the tooth shape of the inverted tooth 3c faces the The direction of the seamless steel pipe 2, and the tooth profile angle is 30°-60°, preferably, the tooth profile angle is 45°.

A groove 3b is provided between the inverted tooth 3c and the stepped shaft 3d, and the groove 3b is formed by a bottom edge and two sides connected thereto, where the bottom edge and the two sides are connected at the inner opening position An arc connection is formed, wherein the vertical distance between the upper surface of the side close to the end of the seamless steel pipe 2 and the bottom is greater than the vertical distance between the upper surface of the side far from the end of the seamless steel pipe 2 and the bottom, so that the locking strip 7b It can reliably contact with the groove 3b, so that the adapter 4 and the pigtail 3 can be reliably connected.

As a preferred embodiment, the side of the inverted tooth 3c away from the end of the tail core 3 and the side of the end away from the seamless steel pipe 2 can be the same side, which saves materials and reduces processing difficulty.

As shown in Figure 3, the adapter 4 is provided with a tail core connection section 4a and a hose connection section 4b, the tail core connection section 4a is provided with a first through hole inside, and the hose connection section 4b is provided with a first through hole inside. Two through holes, wherein the diameter of the first through hole is larger than the diameter of the second through hole.

A plurality of first through holes 4a-1 are evenly distributed along the outer circumference of the tail core connecting section 4a, and a connecting portion 7 is arranged in the first through hole 4a-1, and the connecting portion 7 passes through the first through hole 4a-1. The through hole 4a-1 is located in the first through hole, and the connecting part 7 matches the groove 3b provided on the tail core 3;

Wherein, as shown in FIG. 4, the connecting part 7 includes a fastening ring 7c, a guide post 7a, a locking bar 7b, a spring 7d, and a return spring 7e, wherein:

The fastening ring 7c is sleeved on the tail core connecting section 4a, and the fastening ring 7c is provided with a second through hole opposite to the first through hole 4a-1, and the first through hole 4a-1 and the second through hole A guide post 7a is provided in the two through holes, and a step is provided on the top of the guide post 7a, and the size of the step is larger than the size of the second through hole; it is located on the guide post 7a of the fastening ring 7c and the tail core connecting section 4a A spring 7d is sleeved, one end of the spring 7d is in contact with the fastening ring 7c, and the other end of the spring 7d is in contact with the tail core connecting section 4a; the lower part of the guide post 7a is hinged through the first through hole 4a-1 The locking strip 7b, the locking strip 7b is in contact with and separated from the groove 3b provided on the tail core 3;

The guide post 7a and the locking bar 7b are provided with a return spring 7e, one end of the return spring 7e is connected to the guide post 7a, the other end of the return spring 7e is connected to the locking bar 7b, and the return spring 7e makes the guide An included angle is formed between the column 7a and the locking bar 7b, and the inclination direction of the locking bar 7b is the same as that of the inverted tooth 3c. Preferably, the included angle between the locking bar 7b and the extension of the guide post 7a is is 60°.

The hose connection section 4b is provided with a first external thread section 4b-1 close to the tail core connection section 4a, and a second external thread section is provided between the first external thread section 4b-1 and the front end surface of the hose connection section 4b Segment 4b-2, the second external thread segment 4b-2 is a tapered thread, and the first external thread segment 4b-1 and the second external thread segment 4b-2 have inconsistent rotation directions, and the second external thread 4b-2 is a tapered thread thread, so that the hose can be quickly socketed on the adapter 4; when vibration occurs, the threaded connection becomes loose, because the rotation direction of the first external thread segment 4b-1 and the second external thread end 4b-2 are inconsistent, there must be A threaded connection is tightened to make the connection of the hose to the adapter 4 reliable.

A hose is sleeved on the hose connection section 4b, and a first nut 5 and a second nut 6 are connected to the hose, wherein the first nut 5 is matched with the first external thread section 4b-1, and the second nut 5 is matched with the first external thread section 4b-1. The nut 6 cooperates with the second external thread segment 4b-2.

Preferably, the first external thread 4b-1 is a trapezoidal thread. Since the cross section of the thread is trapezoidal, this toothed thread makes the connection between the hose and the adapter more suitable, and avoids the triangular thread from piercing the hose. The disadvantage of the rectangular threaded hose connection is easy to deform.

A transition slope is formed between the second through hole and the front end of the adapter, and the included angle between the slope and the edge line of the second through hole is 45°.

In a further embodiment, the first external thread 4b-1 is a right-handed thread, and the second external thread 4b-2 is a left-handed thread. Due to the commonly used right-handed thread, the second external thread 4b-2 is a left-handed thread Prevent misoperation, causing the hose to slip.

In a further embodiment, the flange ring 1 includes a flange ring body and an inclined transition part integrally formed with the flange ring body, and the inclined transition part is fixed to the other end of the seamless steel pipe 2 by friction welding Together, the internal through holes of the flange ring body and the inclined transition portion have the same size as the pipe holes of the seamless steel pipe 2 .

In a further embodiment, the inclination angle of the inclined transition portion of the flange ring 1 is in the range of 30-80°, and the inclination angle range of the inclined transition portion is preferably 62°, which facilitates the connection between the flange ring 1 and the seamless steel pipe 2. of welding.

In a further embodiment, at least one annular groove is provided on the front end surface of the body of the flange ring 1, and a sealing ring is arranged in the annular groove, and the sealing ring makes the sealing between the flange ring 1 and the hydraulic equipment reliable.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the utility model belongs can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present utility model should be defined by the claims.

Claims (9)

1. An adapter assembly for preventing the hose from accidentally falling off, characterized in that the adapter assembly includes a flange ring, a seamless steel pipe, a tail core, and an adapter, wherein the seamless steel pipe is arranged on the flange ring and the tail core Between, the tail core and one end of the seamless steel pipe are fixed together by friction welding, and the other end of the seamless steel pipe and the flange ring are fixed together by friction welding; The tail core is close to one end of the seamless steel pipe, and an arc edge is formed on the outside, which is welded together with one end of the seamless steel pipe by friction welding, and the part of the tail core connected with the arc edge forms a protruding stepped shaft , a barbed tooth is formed between the outer end surface of the end of the tail core away from the seamless steel pipe and the stepped shaft, the tooth profile of the barbed tooth faces the direction of the seamless steel tube, and the tooth profile angle is 30° to 60°; A groove is provided between the inverted tooth and the stepped shaft, the groove is formed by a bottom and two sides connected thereto, wherein the bottom and the inner opening of the connecting position of the two sides form an arc connection , wherein the vertical distance between the upper surface of the side near the end of the seamless steel pipe and the bottom is greater than the vertical distance between the upper surface of the side far from the end of the seamless steel pipe and the bottom; The adapter is provided with a tail core connection section and a hose connection section, the tail core connection section is provided with a first through hole inside, and the hose connection section is provided with a second through hole inside, wherein the diameter of the first through hole is greater than the diameter of the second through hole; A plurality of first through holes are uniformly distributed along the outer circumference of the tail core connecting section, a connecting portion is arranged in the first through hole, and the connecting portion passes through the first through hole and is located in the first through hole, The connecting part matches the groove provided on the tail core; Wherein, the connecting part includes a fastening ring, a guide post, a locking strip, and a spring, wherein: The fastening ring is sleeved on the connecting section of the tail core, and a second through hole opposite to the position of the first through hole is arranged on the fastening ring, and guide posts are arranged in the first through hole and the second through hole, A step is arranged on the upper part of the guide post, and the size of the step is larger than the size of the second through hole; a spring is sleeved on the guide post at the connecting section between the fastening ring and the tail core, and one end of the spring is connected to the fastening ring Contact, the other end of the spring is in contact with the connecting section of the tail core; the lower part of the guide post is hinged with a locking bar through the first through hole, and the locking bar is in a state of contact and separation with the groove provided on the tail core; The hose connection section is provided with a first external thread section close to the tail core connection section, and a second external thread section is provided between the first external thread section and the front end surface of the hose connection section, and the second external thread section It is a tapered thread, and the direction of rotation of the first external thread segment and the second external thread segment is inconsistent; A hose is sleeved on the hose connection section, and a first nut and a second nut are connected to the hose, wherein the first nut matches with the first external thread section, and the second nut cooperates with the second external thread section match. 2 . The adapter assembly for preventing accidental detachment of the hose according to claim 1 , wherein the first external thread is a trapezoidal thread. 3 . 3. The adapter assembly for preventing the hose from falling off accidentally according to claim 1, characterized in that, the second through hole and the front end face of the adapter form a transition slope, and the clip between the slope and the edge line of the second through hole The angle is 45°. 4 . The adapter assembly for preventing accidental detachment of the hose according to claim 1 , wherein the first external thread is a right-handed thread, and the second external thread is a left-handed thread. 5 . The adapter assembly for preventing the hose from falling off accidentally according to claim 1 , wherein the size of the first through hole is smaller than the size of the stepped shaft. 6 . 6. The adapter assembly for preventing the hose from accidentally falling off according to claim 1, wherein the flange ring comprises a flange ring body and an inclined transition part integrally formed with the flange ring body, and the inclined transition part is formed integrally with the flange ring body. The transition part and the other end of the seamless steel pipe are fixed together by friction welding, and the inner through hole of the flange ring body and the inclined transition part has the same size as the pipe hole of the seamless steel pipe. 7 . The adapter assembly for preventing accidental detachment of the hose according to claim 6 , wherein the inclination angle of the inclined transition portion of the flange ring is in the range of 30-80°. 8 . The adapter assembly for preventing accidental detachment of the hose according to claim 1 , wherein the inclination angle of the inclined transition portion of the flange ring is 62°. 9 . The adapter assembly for preventing the hose from falling off accidentally according to claim 1 , wherein at least one annular groove is provided on the front end surface of the body of the flange ring. 10 .