CN204284748U - A kind of hose coupling - Google Patents

Abstract

The utility model is a hose joint, the key points of the technical scheme include a sleeve, a connecting head and an axially arranged channel in the connecting head, one end of the connecting head is provided with a connecting part for connecting a hose, and The outer wall of the connecting part is radially provided with a convex ring, and the other end of the connecting part opposite to its end face is provided with an external thread; the sleeve includes a penetrating end and a fixed end, The penetration end and the fixed end are respectively located at both ends of the sleeve, and the inner wall of the fixed end is provided with an internal thread matching the external thread. The wall thickness of the fixed end is smaller than the wall thickness of the penetration end. When the sleeve is connected to the connector, The inner wall of the sleeve is provided with a wedge-shaped surface at the position between the end corresponding to the connecting part and the protruding ring. The wedge-shaped surface is inclined from the fixed end to the penetrating end. The pipe penetrates into the gap, and the fixed end is also provided with a sealing sleeve. The utility model is characterized by high sealing performance, anti-falling off, and convenient installation.

Description

a hose connector

technical field

The utility model relates to a pipe joint, in particular to a hose joint.

Background technique

Existing hose joints mainly include two types, one is the hose joint with a sleeve and the hose joint without a sleeve. When the hose joint without a sleeve is connected to the rubber hose, it is usually only through Put the rubber hose sleeve on the sleeve end of the hose joint. This connection method is the most common. For example, the water pipe is placed on the faucet in the family. Although it is convenient to disassemble and assemble, the airtight performance is poor, especially in When the pressure in the pipe is too high, the hose is easy to fall off; the advantage of the existing hose joint with sleeve is that the sleeve can be sleeved on the outside of the hose, and the sleeve is connected to the body of the hose joint to increase the connection with the hose. The connecting surface of the pipe increases the contact area, so that the hose is not easy to fall off, and the sealing performance is also improved. However, this kind of hose joint has the problem that it is very inconvenient to disassemble. Most of the existing hoses are made of rubber materials, and the friction coefficient is large. When the hose is put on the hose connector, the sleeve and the hose interfere together and it is difficult to install, and it takes a lot of time and effort to fix the sleeve in place.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a hose joint with high sealing performance, anti-dropping and easy installation.

In order to achieve the above purpose, the utility model provides the following technical solutions: a hose connector, including a sleeve, a connector and an axially arranged channel inside the connector,

One end of the connecting head is provided with a connecting part for connecting a hose, the end of the connecting part is in a tapered structure inclined outwards, the outer wall of the connecting part is radially provided with a protruding ring, and the connecting part is opposite to the connecting part. The other end of the end face is provided with an external thread;

The sleeve includes a penetration end and a fixed end, the penetration end and the fixed end are respectively located at both ends of the sleeve, the inner wall of the fixed end is provided with an internal thread matching the external thread, and the wall thickness of the fixed end is smaller than that of the penetration end thick, when the sleeve is connected to the connector, the inner wall of the sleeve is provided with a wedge-shaped surface between the end of the corresponding connection part and the convex ring, and the wedge-shaped surface is inclined from the fixed end to the penetration end. There is a gap for the hose to penetrate between the penetration end and the connection part;

The side plate where the external thread of the connecting part is located is also provided with an annular slot, and a sealing sleeve with one end sealingly connected in the slot, and the sealing sleeve is sleeved between the outer surface of the fixed end and the slot. The groove is made of elastic material and can be turned inside out.

By adopting the above-mentioned technical scheme, the hose joint includes a sleeve and a connecting head. The channel arranged axially in the connecting head is a circulation channel. One end of the connecting head is a connecting part for connecting a hose. , the connection part is characterized in that its end is provided with an outwardly inclined conical surface, and a convex ring is provided behind the conical surface. This design effectively strengthens the fixing effect between the hose and the connection part. Compared with the setting of the smooth surface of the connecting part in the past, the tapered surface on the part makes it easier for the connecting part to penetrate into the opening of the hose, and the tapered surface has a stronger fastening effect on the hose because it is stretched outward, making the hose When it is fixed on the connecting part, it is more firm and not easy to fall off. The protruding ring provided further strengthens the above-mentioned fastening effect. Only the outer diameter of the tapered surface is in contact with the inner wall of the hose, and the stretched front end of the hose will not be fixed. When the hose is subjected to a large outward force, it is still easy to fall off, such as pulling the hose outward. out. Through the setting of the convex ring, after the connecting part penetrates into the hose, the hose is stretched by the tapered surface, and the connecting part is continuously pushed into the hose, and the stretched part of the front end of the hose is then placed on the convex ring, so that The contact surface between the hose and the connecting part is further increased, and through the elastic effect of the stretched hose, it is tightly placed on the connecting part, the fixing effect is further strengthened, and the airtightness of the connecting part is effectively improved. No leakage, convenient and practical.

In addition, the cooperation between the sleeve and the connector in this solution can provide more comprehensive protection for the hose, such as fixing and sealing, and it is easier to install than the conventional sleeve. The sleeve is cylindrical, and one end is provided with an internal thread, which is used to cooperate with the external thread of the connecting part to fix the sleeve. The wall thickness of the fixed end of the sleeve is smaller than that of the penetration end, so the inner diameter of the fixed end is larger than the penetration end. The inner diameter of the end, and the inner wall of the sleeve is provided with a wedge-shaped surface, the wedge-shaped surface is located at the transition part between the penetration end and the fixed end, and the position of the wedge-shaped surface just corresponds to the position between the tapered surface and the convex ring, here mainly The part of the hose that is stretched when it is placed over the connection. When installing the hose, first pass the hose through the sleeve from the penetration end, then insert the connecting part into the hose, and then push the sleeve toward the connector, and the sleeve can be moved toward the connector with the rotation Initially, because the wall thickness of the fixed end is smaller than that of the penetrating end, the inner wall of the fixed end is not in contact with the surface of the hose, and the contact surface is small and it is easier to drag the sleeve. When the fixed end of the sleeve moves to the taper of the connecting part When it is on the surface, the hose is stretched by the tapered surface, and the hose is in contact with the inner wall of the fixed end, because the inner diameter of the fixed end is larger than the penetration end, and the part of the inner diameter larger than the penetration end is just used to accommodate the stretched part of the sleeve, and With the setting of the wedge-shaped surface, the sleeve can still be conveniently rotated to screw the sleeve to the connector and connected with the connector, and when the sleeve is connected to the connector, the wedge-shaped surface of the inner wall of the sleeve is closely connected with the outer wall of the hose , Compress and fix the hose, the fixing effect of the hose is more firm, and it is not easy to fall off.

At the same time, in order to further strengthen the tightness of the new hose joint, the utility model is also provided with a sealing sleeve, one end of the sealing sleeve is sealed and connected in the embedded groove, and the sleeve body of the sealing sleeve is sleeved on the outer wall of the fixed end of the sleeve and the embedded groove. Between the grooves, since the fixed end is used for threaded connection with the connecting part, there is a gap in the threaded connection, so an annular slot is provided on the side of the threaded connection, which is used to seal one end of the sleeve in the inside, and the other end Set on the outer wall of the fixed end, so that the sleeve wraps the connection between the fixed end and the connecting part in the sealing sleeve. The structure of the sleeve effectively increases the sealing surface, and achieves a better sealing effect through the elastic effect of the sealing sleeve , and in order to avoid affecting the installation of the hose, the sealing sleeve can be turned from the inside to the outside when the hose is installed, turned to the other side of the connection part, and then turned back after the hose is installed, so as to achieve enhanced sealing but not Does not affect the function of the hose installation.

Based on the above-mentioned solutions, the remarkable effect of the new hose joint compared with the previous hose joints lies in its high sealing performance, anti-falling off, and convenient installation.

The utility model is further configured as follows: the opposite side of the connecting part is provided with a radially outwardly extending flange, and when the sleeve is connected to the connector, the end of the fixed end is attached to the flange , the inner wall near the end of the fixed end and the outer wall of the connecting part are arranged in close contact.

By adopting the above technical solution, the set hemming width coincides with the thickness of the fixed end. When the sleeve is connected to the connector, the end wall of the fixed end is in contact with this side, and the inner wall of the fixed end is attached to the outer wall of the connecting part. By fitting the end wall and inner wall of the fixed end with the flange and the outer wall of the connecting part, the tightness of the place is further strengthened, and the threaded connection between the sleeve and the connecting part is effectively protected so that it does not come into contact with the outside world, effectively preventing Its corrosion prevents joint damage and enhances its stability in use.

The utility model is further configured as: the inner wall of the penetrating end is provided with several annular grooves.

By adopting the above-mentioned technical scheme, several rings provided at the piercing end, when piercing the hose, due to the setting of the groove, reduce the contact surface with the casing, making it more convenient for the hose to penetrate, and the hose joint and the hose are put into When in use, the hose is filled with fluid, through the pressure of the fluid, and the hose is elastic, the part of the hose located in the groove is slightly sunk in the groove by the fluid pressure, and forms a certain conflict with the groove wall, strengthening the hose The fixing effect further prevents the hose from falling off.

The utility model is further configured as: the outer wall of the sleeve is provided with a frosted surface.

By adopting the above technical solution, the frosted surface provided on the hose enhances the surface roughness of the sleeve, so that it is not easy to slip when installing the sleeve, the grip is comfortable, and the installation of the sleeve is facilitated.

The utility model is further configured as: the other end of the connecting head opposite to the connecting part is provided with a quick-fit joint.

By adopting the above technical solution, the quick-fit joint is a standardized component, and one end of the connector is configured as a quick-fit joint, which facilitates the standardized installation of the hose joint and other components.

Description of drawings

Figure 1 is a cross-sectional view of an embodiment of a hose joint in the present invention;

Fig. 2 is the second cross-sectional view of a hose joint embodiment of the present invention;

Fig. 3 is a structural schematic diagram of an embodiment of a hose joint in the present invention;

Fig. 4 is an exploded view of a hose joint sleeve and a connector of the present invention;

Fig. 5 is an internal structural diagram of a hose joint embodiment of the present invention;

FIG. 6 is an enlarged view of part A of FIG. 5 .

Explanation of reference signs: 1. connector; 2. sleeve; 3. thread connection; 4. sealing sleeve; 11. connection; 12. tapered surface; 13. protruding ring; Fitting joint; 16, embedding groove; 21, penetrating end; 22, fixed end; 23, wedge-shaped surface; 24, groove.

Detailed ways

Referring to Fig. 1 to Fig. 6, an embodiment of a hose joint of the present utility model will be further described.

A hose joint described in this embodiment includes a sleeve 2, a connecting head 1 and an axially arranged channel inside the connecting head 1, and one end of the connecting head 1 is provided with a connecting portion 11 for connecting a hose. The end portion of the connecting portion 11 is inclined outwards to form a tapered surface 12, the rear end of the tapered surface 12 is arc-shaped, and the outer wall of the connecting portion 11 is radially provided with a convex ring 13, and the connecting portion 11 The other end opposite to its end face is provided with an external thread; the sleeve 2 includes a penetration end 21 and a fixed end 22, the penetration end 21 and the fixed end 22 are respectively located at the two ends of the sleeve 2, and the inner wall of the fixed end 22 is provided with a The internal thread matched with the external thread, the wall thickness of the fixed end 22 is smaller than the wall thickness of the penetrating end 21, when the sleeve 2 is connected with the connector 1, the inner wall of the sleeve 2 corresponds to the end of the connecting part 11 and the protrusion The position between the rings 13 is provided with a wedge-shaped surface 23, and the wedge-shaped surface 23 is inclined from the fixed end 22 to the penetration end 21, and a gap for the hose to penetrate is provided between the penetration end 21 and the connecting part 11 .

The hose connector will be further described below. The hose connector includes a sleeve 2 and a connector 1. The channel arranged axially in the connector 1 is a flow channel, and one end of the connector 1 is a connecting part 11 for connecting a hose. The pipe is fixed on the connecting part 11. The characteristic of the connecting part 11 is that its end is provided with an outwardly inclined conical surface 12, and a protruding ring 13 is provided behind the conical surface 12. This design effectively strengthens the The fixing function of the hose and the connecting part 11, the setting of the tapered surface 12 at the end of the connecting part 11 compared with the setting of the smooth surface of the connecting part 11 in the past makes it easier for the connecting part 11 to penetrate into the opening of the hose, and the tapered surface 12. Since it is stretched outwards, the fastening effect on the hose is stronger, so that the hose is more firmly fixed on the connecting part 11 and is not easy to fall off. The protruding ring 13 further strengthens the above-mentioned fastening effect. When only the tapered surface 12 plays a role in stretching the hose, the connecting part 11 penetrates into the hose, and only the outer diameter of the tapered surface 12 abuts against the inner wall of the hose, and the stretched front end of the hose will be lack of fixation , when the hose is subjected to a large outward force, it is still easy to fall off, such as pulling the hose out forcibly. Through the setting of the convex ring 13, after the connecting part 11 penetrates into the hose, the hose is stretched by the tapered surface 12, and the connecting part 11 is continuously pushed into the hose, and the stretched part of the front end of the hose is then placed on the convex ring. On the ring 13, the contact surface between the hose and the connection part 11 is further increased, and through the elastic effect of the hose being stretched, it is tightly placed on the connection part 11, the fixing effect is further strengthened, and the joint is effectively improved. Excellent air tightness, no leakage at the joint, convenient and practical.

In addition, the sleeve 2 in this solution cooperates with the connector 1 to provide more comprehensive protection for the hose, such as fixing and sealing, and is easier to install than the conventional sleeve 2 . The sleeve 2 is cylindrical, and one end is provided with an internal thread, which is used to cooperate with the external thread of the connecting part 11 to fix the sleeve 2. The wall thickness of the fixed end 22 of the sleeve 2 is smaller than the wall thickness of the penetration end 21, so its The inner diameter of the fixed end 22 is larger than the inner diameter of the penetrating end 21, and the inner wall of the sleeve 2 is provided with a wedge-shaped surface 23, which is located at the transition part between the penetrating end 21 and the fixed end 22, and the position of the wedge-shaped surface 23 is It just corresponds to the position between the tapered surface 12 and the protruding ring 13 , where it is mainly the stretched part when the hose is put on the connecting part 11 . When installing the hose, first pass the hose through the sleeve 2 from the penetration end 21, then insert the connecting part 11 into the hose, and then push the sleeve 2 to the direction of the connector 1. Sleeve 2 moves toward connector 1. Initially, because the wall thickness of fixed end 22 is smaller than that of penetration end 21, the inner wall of fixed end 22 does not contact the surface of the hose, and it is easier to drag sleeve 2 with a smaller contact surface. , when the fixed end 22 of the sleeve 2 moves to the tapered surface 12 of the connecting part 11, the hose is stretched by the tapered surface 12, and the hose contacts the inner wall of the fixed end 22, because the inner diameter of the fixed end 22 is larger than the penetration end 21, the inner diameter part of which is larger than the penetration end 21 is just used to accommodate the stretched part of the sleeve 2, and with the setting of the wedge-shaped surface 23, the sleeve 2 can still be conveniently twisted to the connection by rotating the sleeve 2 When the head 1 is connected with the connecting head 1, and the sleeve 2 is connected with the connecting head 1, the wedge-shaped surface 23 of the inner wall of the sleeve 2 is closely connected with the outer wall of the hose, and the hose is pressed and fixed, and the fixing effect of the hose is better. Firm and not easy to fall off.

Simultaneously, in order to further strengthen the tightness of this novel hose joint, the utility model is also provided with a sealing sleeve 4, referring to Fig. Between the outer wall of the fixed end of the sleeve and the socket 16, since the fixed end is used for threaded connection with the connection part, there is a gap in the threaded connection, so an annular socket 16 is provided on the side of the threaded connection for inserting the sleeve One end of the cylinder is sealed and connected inside, and the other end is sleeved on the outer wall of the fixed end, so that the sleeve wraps the joint between the fixed end and the connecting part in the sealing sleeve 4. The structure of the sleeve effectively increases the sealing surface, and through The elastic effect of the sealing sleeve 4 achieves a better sealing effect, and in order to avoid affecting the installation of the hose, as shown in Figure 2 here, the sealing sleeve 4 can be turned up from the inside to the connecting part when the hose is installed On the other side of the hose, turn it back after the hose is installed, so as to achieve the effect of strengthening the sealing without affecting the installation of the hose. The above-mentioned sealing sleeve 4 is made of rubber material, and the embedded groove 16 is set in a limited position. The structure, as shown in Figure 6, is set as a circular structure, or a dovetail shape, or a T shape, mainly based on the consideration of a better fixing effect of the sealing cylinder. Of course, the general groove structure is also acceptable. The sealing sleeve 4 Embedded in the slot 16 and fixed with the slot 16 by bonding.

Based on the above-mentioned solutions, the remarkable effect of the new hose joint compared with the previous hose joints lies in its high sealing performance, anti-falling off, and convenient installation.

Referring to Fig. 4 and Fig. 5, the other side of the connecting part 11 opposite to its end is provided with a radially outwardly extending flange 14, when the sleeve 2 is connected to the connector 1, the fixed end 22 The end portion is attached to the folded edge 14 , and the inner wall near the end of the fixed end 22 is attached to the outer wall of the connecting portion 11 . The width of the set flange 14 coincides with the thickness of the fixed end 22. When the sleeve 2 is connected to the connector 1, the end wall of the fixed end 22 is in contact with this side, and the inner wall of the fixed end 22 is in contact with the connection part 11. The outer wall is fitted, and the end wall and the inner wall of the fixed end 22 are respectively attached to the flange 14 and the outer wall of the connecting part 11 to further strengthen the tightness of the place and effectively protect the threaded connection between the sleeve 2 and the connecting part 11 , so that it does not come into contact with the outside world, effectively prevents it from rusting, prevents damage to the joints, and enhances its stability in use.

Further, the inner wall of the penetrating end 21 is provided with several annular grooves 24, and the several annular grooves 24 provided on the penetrating end 21 reduce the contact surface with the casing when the hose is penetrated due to the setting of the grooves 24, It makes it easier to insert the hose. When the hose connector and the hose are put into use, the hose is filled with fluid, and the hose is elastic due to the pressure of the fluid. The part of the hose located in the groove 24 is slightly affected by the fluid pressure. Being trapped in the groove 24, it forms a certain conflict with the wall of the groove 24, strengthens the fixing effect of the hose, and further prevents the hose from falling off.

The outer wall of the sleeve 2 is provided with a frosted surface, and the frosted surface provided by the hose enhances the surface roughness of the sleeve 2, making it difficult to slip when installing the sleeve 2, with a comfortable grip and convenient installation of the sleeve 2.

The other end of the connecting head 1 relative to the connecting portion 11 is provided with a quick-fit joint 15, which is a standardized component, and one end of the connecting head 1 is set as a structure of the quick-fit joint 15, which facilitates the standardization of hose joints and other components. installation.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present utility model shall be included in the present utility model. within the scope of the new protection.

Claims (5)

1. a hose coupling, comprises the passage axially arranged in sleeve, connecting head and connecting head, it is characterized in that:

Described connecting head one end is provided with the joint for connecting hose, and the end of described joint is outward-dipping tapered structure, and the outer wall radial direction of described joint is provided with bulge loop, and the other end of described joint its end face relative is provided with outside thread;

Described sleeve comprises penetrating to be held and fixed end, penetrate end and fixed end lays respectively at the two ends of sleeve, fixed end inwall is provided with the internal thread mated with outside thread, the wall thickness of described fixed end is less than the wall thickness penetrating end, when described sleeve is connected with connecting head, position between the end of the inwall corresponding connection parts of sleeve and bulge loop is provided with sphenoid surface, and described sphenoid surface self-retaining end is obliquely installed to penetrating end, described in penetrate the gap being provided with between end with joint and penetrating for flexible pipe;

The side panel at the outside thread place place of described joint is also provided with the caulking groove of annular, and one end is sealedly attached to the stuffing box gland in caulking groove, and described stuffing box gland is placed between the outer surface of fixed end and caulking groove, and described caulking groove is made can be routed up from inside to outside by elastic material.

2. a kind of hose coupling according to claim 1, it is characterized in that: the opposite side of described joint its end relative is provided with the flanging extended radially outwardly, when described sleeve is connected with connecting head, the end of fixed end and flanging are fitted and are arranged, and the outer wall of the inwall of fixed end near its end and joint is fitted and arranged.

3. a kind of hose coupling according to claim 1 and 2, is characterized in that: described in penetrate end inwall be provided with some annular grooves.

4. a kind of hose coupling according to claim 3, is characterized in that: the outer wall of described sleeve is provided with frosting.

5. a kind of hose coupling according to claim 4, is characterized in that: the other end of described connecting head opposing connections is provided with ready-packaged joint.