CN2504805Y

CN2504805Y - Fast joint

Info

Publication number: CN2504805Y
Application number: CN 01233533
Authority: CN
Inventors: 林泰源
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-17
Filing date: 2001-08-17
Publication date: 2002-08-07
Anticipated expiration: 2011-08-17

Abstract

A fast-joint is inserted and connected with a protective pipe. A plurality of intervallic arranged annular concave parts and annular convex parts are arranged on the surface of the protective pipe. The fast-joint comprises a body, a locking connection body, and a limited element arranged and fastened between the body and the locking connection body. The body is in a hollow annular shape, a locking fixed ring is formed on an outer torus of the body. The outer torus extends to the two sides of the locking fixed ring and then respectively forms a front outer thread segment and a back outer thread segment, furthermore, an inner torus of the body is provided with a flange. The locking connection body is in a hollow annular shape, an inner torus of the locking connection body is provided with a screw connecting part which is screwed and fixed on the front outer thread segment of the body, the screw connecting part is provided with a connection edge arranged along the axial direction of the screw connecting part. The limited element which is arranged and fastened between the body and the locking connection body is C-shaped from side view and open with an opening. The utility model has the advantages of convenient assembly and disassembly, free from water and oil infiltration and long service life.

Description

Snap joint

(1) technical field

The utility model relates to a kind of joint, particularly a kind of snap joint.

(2) background technology

Common mechanical equipment; for example: CNC lathe, planer, comprehensive process center machine etc.; all dispose an electric appliance box, it utilizes cable that the power supply in the external world is connected to the control switch of electric appliance box, is resent to machine body; has the screw-shaped protection tube and all be arranged with a surface outside the common cable; this protection tube then is connected with electric appliance box by a joint, connects the purpose of establishing to reach, yet; easy to connect in order to make, reduce work hours, a kind of snap joint appears on the market.

As Fig. 1; shown in 2; general snap joint; include a body 10; one is located in the affixed ring 20 in this body 10; reach one and can penetrate the protection tube 30 of holding at this affixed ring 20; this body 10 is a hollow tube; the nearly trailing edge of its anchor ring place is provided with the rectangular opening 11 of fourth class angle intervals; and be formed with a thread segment 12 at leading section; this thread segment 12 is in order to be spirally connected with electric appliance box; this affixed ring 20 has the hollow ring body that a diameter is slightly less than this body 10; rectangular opening 11 places with respect to this body 10 on the outer ring surface of one ring wall are formed with similar number and rubber-like fixing body 21; each fixes body 21 and is formed with a triangle tapering 211; and one of ring wall inner ring surface is formed with an overhead kick 212 at the root edge place of this fixing body 21; this affixed ring 20 also has the annulus 22 of a diameter greater than the end edge of this body 10 in addition; when the ring body of this affixed ring 20 was located in this body 10, the fixing body 21 of this affixed ring 20 was prominent putting at rectangular opening 11 places.

As shown in Figure 2; when this body 10 and this protection tube 30 connect when establishing; this protection tube 30 is for cooperating the structure kenel of this snap joint; it is the flexible pipe that a surface has a circulus; connect when establishing; only need this protection tube 30 is located in the inside of this affixed ring 20, make these overhead kick 212 holdings, just can reach the purpose of assembling at the depressed part 31 of these protection tube 30 ring-type tissues.

But this general snap joint still has disappearance described as follows and has to be solved when reality is used:

1. the body 10 of this snap joint forms holding with this affixed ring 20; but the ring-type tissue holding of this protection tube 30 of arranging in pairs or groups is in the overhead kick 212 of this affixed ring 20; though have the function that structure is firmly organized knot; but; in fact its obturation effect and ideal not to the utmost; be subjected to moisture content or oil gas easily and from the joint gap of this protection tube 30 and this affixed ring 20, infiltrate this protection tube 30; after long-term the use; make the cable in this protection tube 30 suffer erosion, corrode easilier; cause the situation of cable short circuit, electric leakage to take place, and lose the safeguard function of this protection tube 30.

2. when this snap joint is desired to separate with this protection tube 30; at first to use hand tool; for example: straight screwdriver; the fixing body 21 of this affixed ring 20 is broken away from rectangular opening 11 in this body 10; make holding can successfully break away from this body 10 relatively at the protection tube 30 of this overhead kick 212; then use a hand tool to pull the overhead kick 212 of this affixed ring 20; allow this protection tube 30 break away from this affixed ring 20; above-mentioned so complicated demounting procedure; not only has the shortcoming that dismounting is difficult for; in addition, losing time also is its weak point.

(3) utility model content

The purpose of this utility model is to provide a kind of associativity good, and the snap joint that can simple and easyly assemble, dismantle.

In order to achieve the above object; the utility model provides a kind of snap joint; plug with a protection tube and to be connected; the surface of this protection tube is provided with most annular recess and projecting ring sections separately; this snap joint includes a body, an interlocking body; reach one and install the locating part that is packed between this body and this interlocking body, it is characterized in that:

This body is a hollow and annular body, and has a locking ring that is molded over this body outer ring surface, and this outer ring surface toward the both sides of this locking ring extend be respectively equipped with one before external thread section behind the external thread section and, and the inner ring surface of this body is equipped with a flange;

This interlocking body is a hollow and annular body, has an interlocking ring that is molded over the external anchor ring of this interlocking, and this interlocking body inner ring surface also has the spiro union portion of the solid preceding external thread section at this body of a spiral shell, and this spiro union portion has one and extends axially the edge of accepting of setting along it;

This locating part, be a C shape ring body, it has an opening port, one periphery wall that extends to form from past these locating part both sides of this opening port, an and roof that extends in opposite directions from this periphery wall apical margin level, this roof has an ora terminalis away from this periphery wall, and be provided with most the banking stops that do not contact and be unidirectional tooth tip shape each other along its axial down extension by this ora terminalis, this each banking stop also has an oblique protuberance toward the extension of central axis and the angle that tilts, this each banking stop, match between this periphery wall and this roof three and define a ring groove, the roof of this locating part to should opening port along axially down extending a recess walls.

Described snap joint is characterized in that: this protection tube penetrates in this interlocking body and is connected on the flange of this body, and a gasket ring is installed between this flange and this protection tube.

Described snap joint, it is characterized in that: be formed with a torticollis portion between the roof ora terminalis of this locating part and the oblique protuberance of this locating part, this torticollis portion has the inclined plane of one 5 degree, and the inclined plane of this torticollis portion links this oblique protuberance and forms an inclined plane greater than 90 degree.

Described snap joint; it is characterized in that: this locating part is to be made by rubber-like rubber or plastic material; this protection tube penetrates the oblique protuberance of this interlocking body and this banking stop of process; this oblique protuberance will be subjected to this protection tube projecting ring section extrusion strength and produce distortion, relend the depressed part holding packing of its elastic-restoring force and this protection tube.

Described snap joint; it is characterized in that: the inclined plane terminal horizontal of the oblique protuberance of this locating part is formed with a reverse blocking edge in opposite directions; the projecting ring section clip packing of this reverse blocking edge and this protection tube; when the protection tube that penetrates this locating part is desired to move toward this interlocking body direction, then by the projecting ring section formation clip shape of the reverse blocking edge of this locating part and this protection tube and can't move.

In sum, snap joint of the present utility model, it has assembling, dismounting is simple and easy, and long-term the use is difficult for producing distortion and long advantage of life-span, in addition, it also has preferable obturation effect, is not easy to be subjected to the infiltration of moisture content or oil gas, can reduce relatively because of the cable corrosion causes the situation of cable short circuit, electric leakage to take place.

(4) description of drawings

Fig. 1 is a three-dimensional exploded view of general snap joint.

Fig. 2 is an assembled sectional view of general snap joint.

Fig. 3 is a three-dimensional exploded view of the utility model one preferred embodiment.

Fig. 4 is the cutaway view of the locating part of this preferred embodiment of the utility model.

Fig. 5 is the top view of the locating part of this preferred embodiment of the utility model.

Fig. 6 is an assembled sectional view of this preferred embodiment of the utility model.

(5) embodiment

Shown in Fig. 3,6; it is a preferred embodiment of the utility model snap joint; be fit to plug linking for a protection tube 70; this protection tube 70 is the hollow tube that a surface has a circulus; and the surface forms most annular recess 71 and projecting ring section 72 separately; this snap joint includes a body 40, but solid interlocking body 50, one installings at this body 40 of a spiral shell are packed in the locating part 60 between this body 40 and this interlocking body 50.

This body 40 is a hollow and annular body, and has a hexagonal locking ring 42 that is molded over the outer ring surface 41 of this body 40, and this outer ring surface 41 extends toward the both sides of this lockings ring 42 and forms external thread section 43 and a diameter before one respectively and be somebody's turn to do the little back external thread section 44 of preceding external thread section 43, and the inner ring surface 45 of this body 40 also is equipped with a flange 46.

This interlocking body 50 is the hollow and annular body that a diameter is slightly larger than this body 40, has a hexagonal interlocking ring 52 that is molded over the outer ring surface 51 of this interlocking body 50, but its inner ring surface 53 also has the spiro union portion 54 of the solid preceding external thread section 43 at this body 40 of a spiral shell, and this spiro union portion 54 extends axially to be formed with along it accepts edge 55.

As Fig. 3,4, shown in 5, this locating part 60 be selected from a kind of as rubber, rubber-like materials such as plastics are made, and side-looking generally is a C shape ring body, and has an opening port 61, one extends to form a periphery wall 62 from this opening port 61 toward these locating part 60 both sides, an and roof 63 that extends in opposite directions from these periphery wall 62 apical margin levels, this roof 63 has an ora terminalis 631 away from this periphery wall 62, and axially down extend to form most the banking stops 64 that do not contact and be unidirectional tooth tip shape each other along it by this ora terminalis 631, this banking stop 64 also has an oblique protuberance 65 toward the extension of central axis and the angle that tilts, and be formed with a torticollis portion 66 between the ora terminalis 631 of this oblique protuberance 65 and this roof 63, this torticollis portion 66 has the inclined plane 661 of about 5 degree in the present embodiment, in addition, the inclined plane 661 of this torticollis portion 66 links this oblique protuberance 65 and more is formed with an inclined plane 651 greater than 90 degree, and the terminal horizontal on the inclined plane 651 of this oblique protuberance 65 is formed with a reverse blocking edge 652 in opposite directions, in addition, relend by these banking stops 64, match between this periphery wall 62 and this roof 63 threes and define a

ring groove

67, and 63 pairs of the roofs of this locating part 60 should opening port 61 along axially down extending a straight recess walls 68.

During assembling; as Fig. 3; shown in 6; roof 63 with this locating part 60 is connected to accepting on the edge 55 of this interlocking body 50 earlier; again with the solid preceding external thread section 43 of spiro union portion 54 spiral shells of this interlocking body 50 at this body 40; make these locating part 60 installings be packed between the preceding external thread section of accepting edge 55 and this body 40 43 open ora terminalis of this interlocking body 50; at last; this protection tube 70 penetrated this interlocking body 50 and during through the oblique protuberance 65 of this locating part 60; this oblique protuberance 65 will be subjected to this protection tube 70 projecting ring section 72 extrusion strength and produce distortion; relend its depressed part that plays shape restoring force and this protection tube 70 71 and form holding packing shape; when these protection tube 70 desires move toward these interlocking body 50 directions; then form the holding shapes and can't move by the projecting ring section 72 of the reverse blocking edge 652 of this locating part 60 and this protection tube 70; and then make this interlocking body 50; form between this locating part 60 and this protection tube 70 threes and this body 40 and combine closely, promptly finish the assembling of the utility model snap joint.

When the operator wants to dismantle this snap joint; only need the spiro union portion 54 of this interlocking body 50 is broken away from the preceding external thread section 43 of this body 40; make this locating part 60 also detach this body 40 with this protection tube 70; at this moment; by this locating part 60 is C body design; and can pull the opening port 61 of this locating part 60 easily; holding can be broken away from easily at the protection tube 70 of the oblique protuberance 65 of this locating part 60; has simple and easy assembling relatively; the advantage of dismounting; in addition; the radially relative position of the opening port 61 of this locating part 60 has a recess walls 68; can make when this locating part 60 is outwards pulled; a preferable elastic-restoring force is provided, after long-term the use, has to be difficult for producing and be out of shape and long advantage of life-span.

In addition; when this protection tube 70 penetrates in this interlocking body 50 and be connected on the flange 46 of this body 40; can on the flange 46 of this body 40, install a gasket ring 47 that supplies this protection tube 70 to avoid liquid to infiltrate; the design of arranging in pairs or groups and combining closely between this interlocking body 50, this locating part 60 and this protection tube 70 threes and this body 40; it is different from general snap joint; and has preferable obturation effect; after long-term the use; also be not easy to be subjected to the infiltration of moisture content or oil gas, reduce relatively because of the cable corrosion causes the situation of cable short circuit, electric leakage and take place.

Claims

1. snap joint; plug with a protection tube and to be connected, the surface of this protection tube is provided with most annular recess and projecting ring sections separately, and this snap joint includes a body, an interlocking body; reach one and install the locating part that is packed between this body and this interlocking body, it is characterized in that:

2. snap joint as claimed in claim 1 is characterized in that: this protection tube penetrates in this interlocking body and is connected on the flange of this body, and a gasket ring is installed between this flange and this protection tube.

3. snap joint as claimed in claim 1, it is characterized in that: be formed with a torticollis portion between the roof ora terminalis of this locating part and the oblique protuberance of this locating part, this torticollis portion has the inclined plane of one 5 degree, and the inclined plane of this torticollis portion links this oblique protuberance and forms an inclined plane greater than 90 degree.

4. snap joint as claimed in claim 1; it is characterized in that: this locating part is to be made by rubber-like rubber or plastic material; this protection tube penetrates the oblique protuberance of this interlocking body and this banking stop of process, the depressed part holding packing of this oblique protuberance and this protection tube.

5. snap joint as claimed in claim 1 is characterized in that: the inclined plane terminal horizontal of the oblique protuberance of this locating part is formed with a reverse blocking edge in opposite directions, the projecting ring section clip packing of this reverse blocking edge and this protection tube.