CN201110435Y

CN201110435Y - High-efficiency joint

Info

Publication number: CN201110435Y
Application number: CNU2007200789408U
Authority: CN
Inventors: 柯友敏; 柯寿乾
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-30
Filing date: 2007-03-30
Publication date: 2008-09-03
Anticipated expiration: 2017-03-30

Abstract

The utility model relates to a joint, in particular to a high-effective joint which is connected by a vehicle braking system hose and a metal tube, wherein the high-effective joint is provided with a body which comprises a first tube-shaped body segment and a second tube-shaped body segment, a connection structure is arranged on the outer wall of the first tube-shaped body segment, a tube-shaped inner-core is arranged in the first tube-shaped body segment, one end of the tube-shaped inner-core is fixedly connected with the first tube-shaped body segment, the gap is formed among the outer wall of the other end of tube-shaped inner-core, the inner wall of the first tube-shaped body segment and the inner wall of the second tube-shaped body segment, a ring-shaped flute and an inner-wall conical segment are positioned on the inner wall of the second tube-shaped body segment, a seal piece is positioned in the ring-shaped flute, a fracture ring-shaped lock card is arranged in the inner-wall conical segment, the outer wall of the ring-shaped lock card is provided with a lock card conical face which is matched with an inner-wall conical segment, the first tube-shaped body segment is fixedly connected with the second tube-shaped body segment through screws which are mutually matched with each other. The product can make users exchange the hose without using special tool rapidly and reliably.

Description

Efficient joint

Technical field

The utility model relates to a kind of joint, a kind of efficient joint that is connected with metal tube in particular for the brake system of car flexible pipe.

Background technique

Existing automobile brake hose coupling has body, it promptly is a Connection Card, usually flexible pipe is nested with on metal tube and tightens flexible pipe with Connection Card then, thereby flexible pipe inside brake liquid or the increase of brake gas pressure cause flexible pipe landing from the metal tube when preventing automobile brake.In addition, because motor vehicle brake fluid has stronger corrosivity and the automobilism environment is abominable, can be after the use for a long time of above-mentioned flexible pipe because of managing factor accelerated ageings such as high temperature and the breakage that interior brake fluid corrodes or brake gas expansion contraction makes flexible pipe distort, automobile distributes, in case the flexible pipe breakage will cause braking automobile malfunctioning, thereby the potential safety hazard of bringing, therefore flexible pipe also takes normal replacing, and then keeps brake system of car to have good working order.Generally speaking, the user is tightening Connection Card or is changing flexible pipe need unclamp Connection Card the time, all need to employ special tools such as open mouth tongs and just can stir Connection Card, these special tools just possess in the auto repair station, and changing the place of flexible pipe, the user tends to change because of the concrete service time of flexible pipe, usually but automobile by chance is not parked in the auto repair station when promptly being badly in need of to change flexible pipe, it is very difficult even can't change flexible pipe that the user does not have special tool to cause allowing the user change flexible pipe, brought inconvenience to the user.Therefore, need provide a kind of special tool that do not use is the efficient joint of automobile brake flexible pipe of replaceable flexible pipe.

The model utility content

It is the efficient joint of automobile brake flexible pipe of replaceable flexible pipe that the purpose of this utility model provides a kind of special tool that do not use.

Efficient joint of the present utility model has body, described body is made of the first tubular body section and the second tubular body section, the described first tubular body section outer wall is provided with linkage structure, be equipped with tubular core in the described first tubular body section, one end of described tubular core is fixedlyed connected with the first tubular body section, the medial axis of described tubular core overlaps with the medial axis of the described first tubular body section, the medial axis of described tubular core overlaps with the medial axis of the second tubular body section, all has the gap between the outer wall of the described tubular core the other end and the first tubular body section inwall and the second tubular body section inwall, have annular recess and conical surface of inboard wall section on the described second tubular body section inwall, be provided with Sealing in the described annular recess, described conical surface of inboard wall section place is provided with the annular lock card with fracture, described annular lock card outer wall has the locking card conical surface that matches with the conical surface of inboard wall section, and the described first tubular body section is fixedlyed connected by the screw thread that cooperatively interacts with the second tubular body section.

The first tubular body section described in the utility model and the second tubular body section can be made of plastics or metal, when the described first tubular body section and the second tubular body section are made of plastics, can reduce the use amount of noble metal, reduce production costs significantly, and make the body overall weight light and handy, help transportation and storage.When the described first tubular body section and the second tubular body section were made of metal, it was more reliable to allow body be connected with the external metallization pipe, and intensity is higher.

The linkage structure of the first tubular body section outer wall setting described in the utility model can be a Placement commonly used such as screw thread or Connection Card, usually the Placement that is provided with on the external metallization pipe is for being threaded, and the linkage structure of recommending the first tubular body section outer wall setting is for being threaded.The tubular core that is nested with in the first tubular body section described in the utility model can be that the tubular metal inner core also can be the plastic tube-shape inner core, described tubular core can be served as by the first tubular body intersegmental part material extension part, certainly the tubular core that also can make other materials is in case of necessity separately packed in manufacturing procedure in the first tubular body section, allows tubular core one end and the first tubular body intersegmental part drive fit form a fixed connection.

All has the gap between the outer wall of the other end of tubular core described in the utility model and the first tubular body section inwall and the second tubular body section inwall, promptly be meant when needs carry out the external hose connection, can allow described tubular core, external hose, by the body that the first tubular body section and the second tubular body section constitute, be nested with successively from the inside to the outside.

Have annular recess and conical surface of inboard wall section on the second tubular body section inwall described in the utility model, be provided with Sealing in the described annular recess, described Sealing can be existing normally used rubber seal ring, sealed nylon circle or the like.Described conical surface of inboard wall section place is provided with the annular lock card with fracture, described annular lock card outer wall has the locking card conical surface that matches with the conical surface of inboard wall section, after being provided with like this, when described annular lock axis to when motion, just can allow annular lock card outer wall locking card cone match conical surface of inboard wall section and cause the annular lock card to dwindle internal diameter or enlarge internal diameter.Described annular lock card inwall can be provided with structures such as antislip cog, and it is one or more that described antislip cog can be provided with as required, and described antislip cog can be made separately, and certain described antislip cog also can be served as by annular lock card inwall extension part.

When the efficient joint in using the utility model connects external hose, can allow earlier constitute body by the screw thread that the cooperatively interacts fixedly connected first tubular body section and the second tubular body section.The gap that has between the outer wall that allows external hose axially be inserted in then promptly to allow external hose enter the tubular core the other end in the second tubular body section of described body and the first tubular body section inwall and the second tubular body section inwall, simultaneously also allow tubular core axially be inserted in external hose, form tubular core, the state that external hose and body are nested with from the inside to the outside successively, at this moment, the outer wall of described external hose contacts with the annular lock card inwall with fracture that is provided with of the Sealing that is provided with and described conical surface of inboard wall section place in the described annular recess simultaneously, then described external hose is moved to being inserted in the opposite direction of the second tubular body section, external hose moves and also drives the annular lock card simultaneously and move, because described annular lock card outer wall has the locking card conical surface that matches with the conical surface of inboard wall section, at this moment, the annular lock card can be along with conical surface of inboard wall section radial contraction, and then with external hose clamping and card jail, not only can prevent the external hose slippage but also played the effect in gap between sealed external hose inner wall and the tubular core outer wall, it is safer reliable to allow external hose connect.In order to play the better seal effect, a plurality of annular recess can be set and Sealing is set in annular recess, allow described Sealing with the clearance seal between the external hose outer wall and the second tubular body section inwall, thereby guarantee to connect the Security after the external hose.After connecting external hose, just can allow body be connected by the linkage structure of the first tubular body section outer wall setting with the metal interface of outside, certainly, also can allow body be connected in case of necessity earlier, and then connect the step of external hose with the metal interface of outside.When needing to take out external hose, just can rotate the second tubular body section or the first tubular body Duan Rangqi earlier makes connected another tubular body section break away from by screw thread, then described external hose is moved to the direction of being inserted in the second tubular body section, at this moment, described external hose can drive the annular lock card and move together, the annular lock card can radially enlarge along with the conical surface of inboard wall section, and then unclamp the clamping external hose, at last, continue to allow external hose move, can finally allow external hose separate with the second tubular body section to the direction of being inserted in the second tubular body section.Repeating aforementioned operation is replaceable next bar external hose.

Compared with the aforementioned existing similar products, efficient joint of the present utility model can allow the user not use special tool promptly can change not only the brake system of car flexible pipe soon but also reliably under the premise that security is guaranteed, and be not subjected to the restriction in equipment and place, brought convenience, Applicable scope wider to the user.

Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.

Description of drawings

Fig. 1 is the structural representation of efficient joint among the embodiment.

Fig. 2 is the A-A sectional drawing of Fig. 1.

Fig. 3 is the structural representation after the efficient joint connection external hose among Fig. 1.

Embodiment

Shown in Fig. 1～3, efficient joint in the present embodiment has body, described body is made of the first tubular body section 1 and the second tubular body section 2, the described first tubular body section, 1 outer wall is provided with linkage structure 3, be equipped with tubular core 4 in the described first tubular body section 1, one end of described tubular core 4 is fixedlyed connected with the first tubular body section 1, the medial axis of described tubular core 4 overlaps with the medial axis of the described first tubular body section 1, the medial axis of described tubular core 4 overlaps with the medial axis of the second tubular body section 2, all has gap 5 between the outer wall of described tubular core 4 the other ends and the first tubular body section, 1 inwall and the second tubular body section, 2 inwalls, have annular recess 6 and conical surface of inboard wall section 7 on the described second tubular body section, 2 inwalls, be provided with Sealing 8 in the described annular recess 6, described conical surface of inboard wall section 7 places are provided with the annular lock card 10 with fracture 9, described annular lock card 10 outer walls have the locking card conical surface 11 that matches with conical surface of inboard wall section 7, and the described first tubular body section 1 is fixedlyed connected by the screw thread 12 that cooperatively interacts with the second tubular body section 2.

The linkage structure 3 of the first tubular body section outer wall setting is for being threaded in the present embodiment.The Sealing 8 that is provided with in the annular recess described in the present embodiment 6 is existing normally used rubber seal rings.

Claims

1. efficient joint, has body, it is characterized in that described body is made of the first tubular body section and the second tubular body section, the described first tubular body section outer wall is provided with linkage structure, be equipped with tubular core in the described first tubular body section, one end of described tubular core is fixedlyed connected with the first tubular body section, the medial axis of described tubular core overlaps with the medial axis of the described first tubular body section, the medial axis of described tubular core overlaps with the medial axis of the second tubular body section, all has the gap between the outer wall of the described tubular core the other end and the first tubular body section inwall and the second tubular body section inwall, have annular recess and conical surface of inboard wall section on the described second tubular body section inwall, be provided with Sealing in the described annular recess, described conical surface of inboard wall section place is provided with the annular lock card with fracture, described annular lock card outer wall has the locking card conical surface that matches with the conical surface of inboard wall section, and the described first tubular body section is fixedlyed connected by the screw thread that cooperatively interacts with the second tubular body section.