CN202149302U - Universal joint - Google Patents

Universal joint Download PDF

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Publication number
CN202149302U
CN202149302U CN201120253729U CN201120253729U CN202149302U CN 202149302 U CN202149302 U CN 202149302U CN 201120253729 U CN201120253729 U CN 201120253729U CN 201120253729 U CN201120253729 U CN 201120253729U CN 202149302 U CN202149302 U CN 202149302U
Authority
CN
China
Prior art keywords
cylindrical
external diameter
cylinder
multistage
dop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201120253729U
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Chinese (zh)
Inventor
李善评
曾雪媛
张启磊
崔江杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University
Original Assignee
Shandong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong University filed Critical Shandong University
Priority to CN201120253729U priority Critical patent/CN202149302U/en
Application granted granted Critical
Publication of CN202149302U publication Critical patent/CN202149302U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a joint applicable to various specifications of soft pipes and hard pipes, which belongs to the technical field of pipe connecting devices. The joint comprises a joint body and a pressing sleeve, wherein the joint body is in threaded connection with the pressing sleeve; the joint body comprises a large cylinder and a multi-section cylinder; one end of the multi-section cylinder is hermetically connected with the large cylinder; the multi-section cylinder comprises cylinders and truncated cones, and the outside diameter of the cylinders is decreased gradually; two adjacent cylinders are connected through the truncated cone; and the multi-section cylinder is applicable to various specifications of soft pipes and hard pipes. The joint is applicable to various specifications of soft pipes and hard pipes, and can be mounted and demounted fast, has wide application scope, high firmness and tightness as well as large safety factor and saves both time and labor. Therefore, the joint is favorable for popularization and utilization.

Description

A kind of universal joint
Technical field
The utility model relates to a kind of flexible pipe and hard pipe joint that is applicable to plurality of specifications, belongs to the assembling pipe joint technical field.
Background technique
Placement between traditional pipeline and other device is that pipeline is enclosed within on the device, tightens or uses iron wire to tighten with fixing device and connect, and this Placement exists and can not assemble fast, and shortcoming such as waste time and energy.
Along with the development of society, the union of pipeline connects and is widely used in the industrial and agricultural production equipment, and existing union generally comprises outside thread head, gland nut and seal washer etc.Chinese patent 200710026771.8 has been introduced a kind of anticreep, strong SEALING FITTING; But shortcomings such as this patent exists, and part is many, installation steps are loaded down with trivial details, it is not firm to connect, be prone to come off; Especially in chemical process; Connect not firm, being prone to come off is extremely dangerous, has huge potential safety hazard.Chinese patent 200910098863.6 discloses a kind of quick coupling of claw-type plastic hose, but it only is suitable for the fixedly flexible pipe of specification, and is not suitable for the connecting tube of hard tube and other specifications, and using scope is restricted, and certain narrow limitation is arranged.
Summary of the invention
Be technical deficiency more than solving, the utility model provide a kind of simple in structure, can quick mounting with dismounting, be connected firmly, safety coefficient is high, and is time saving and energy saving, the joint that flexible pipe and hard tube all are suitable for.
The utility model is realized through following technological scheme:
A kind of universal joint; Comprise joint body and clamping sleeve; Joint body is threaded with clamping sleeve, it is characterized in that: described joint body comprises large cylinder and multistage cylindrical body, and cylindrical end of multistage and large cylinder are tightly connected; Described multistage cylindrical body comprises cylindrical body and the truncated cone that external diameter successively decreases gradually, connects through truncated cone between adjacent two cylindrical bodys.The advantage of this kind design: the multistage cylindrical body is applicable to the plastic flexible pipe and the hard tube of plurality of specifications; The plastic rigid pipe of different inner diameters specification and flexible pipe can be stuck in outside one section cylindrical body on the multistage cylindrical body that is complementary with it; Make it plastic rigid pipe and flexible pipe applicable to different size, Applicable scope is wider.
One section cylindrical body that the right output port of described truncated cone and external diameter are big is tightly connected; One section cylindrical body that the left port of truncated cone and external diameter are little is tightly connected; The cylindrical body external diameter that the right-hand member external diameter of truncated cone and external diameter are big is identical, and the cylindrical body external diameter that the left end external diameter of truncated cone and external diameter are little is identical.
One section cylindrical external diameter of described multistage cylindrical body external diameter maximum is less than the external diameter of large cylinder.
Preferably; Described multistage cylindrical body is outside equipped with claw; The circumference of claw is fixed on the large cylinder one end end face, and for holding the cavity of flexible pipe or hard tube, described claw comprises at least three dops between claw and the described multistage cylindrical body; Dop is evenly distributed on the circumference, and the length of dop is identical with the cylindrical length of multistage.When plastic rigid pipe or hose proof outside the multistage cylindrical body, screw on clamping sleeve, claw is extruded and causes that dop is extruded, dop makes plastic rigid pipe or more firm being pressed on the cylindrical outer wall of multistage of flexible pipe, reaches the purpose of connection, anti-loose and sealing.
Described clamping sleeve one end inwall is provided with internal thread; Large cylinder is provided with the outside thread that is complementary with the clamping sleeve internal thread outward; Be evenly distributed with dop on the other end inwall one circle of clamping sleeve; Said dop is at least three, and the bottom of dop is fixed on the clamping sleeve inwall, and the top of dop is arranged rounded.The advantage of this kind design: dop has elasticity, can the plastic rigid pipe and the flexible pipe of the various outer diameter specification inserted be pushed, in addition; After screwing on clamping sleeve; This dop can also push the dop of large cylinder upper clipping claw, utilizes the dop that is extruded that plastic tube is played further chucking, for plastic flexible pipe; When hydrodynamic pressure raise, the extruding of two place's dops can make its connection, sealing effect better.
Preferably, to arrange rounded diameter identical with one section cylindrical external diameter of multistage cylindrical body external diameter minimum on the top of dop.
Preferably, the clamping sleeve inwall is provided with the internal diameter of an end internal diameter of screw thread greater than the other end.
Described multistage cylindrical body also is with O type elastic seal ring outward.During use, insert external hard tube, seal ring is close to the hard tube mouth of pipe and is enclosed within on the multistage cylindrical body, seals; When inserting external hose, seal ring is placed in the external hose outside, and flexible pipe is played anticreep, seal action.
The beneficial effect of the utility model is: the multistage cylindrical body of the utility model designs, and goes for the plastic rigid pipe or the flexible pipe of different size, and is applied widely, can realize quick mounting and dismounting, and soundness is good, is not easy to throw off.The utility model is easy to use, good airproof performance, and safety coefficient is high, and is time saving and energy saving, helps promoting and utilizing.
Description of drawings
Fig. 1 is the structural representation of clamping sleeve, joint body;
Fig. 2 is the structural representation that joint connects plastic rigid pipe;
Fig. 3 is the structural representation that joint connects plastic flexible pipe;
Fig. 4 is a clamping sleeve internal structure schematic representation.
Wherein, 1, large cylinder; 2, multistage cylindrical body; 3, dop a; 4, clamping sleeve; 41, dop b; 5, elastic seal ring; 6, plastic rigid pipe; 7, plastic flexible pipe.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is done explanation at length, but be not limited thereto.
Embodiment 1
A kind of universal joint; Structure is as shown in Figure 1, comprises joint body and clamping sleeve 4, and joint body comprises large cylinder 1 and multistage cylindrical body 2; Large cylinder 1 is the hollow setting with multistage cylindrical body 2; One end and the large cylinder 1 of multistage cylindrical body 2 are tightly connected, and the external diameter of multistage cylindrical body 2 is less than the external diameter of large cylinder 1 on the whole, and multistage cylindrical body 2 is applicable to the plastic flexible pipe 7 or the plastic rigid pipe 6 of plurality of specifications.As shown in Figure 4, clamping sleeve 4 one end inwalls are provided with internal thread, the large cylinder 1 outer outside thread that is complementary with clamping sleeve 4 internal threads that is provided with; Clamping sleeve 4 is threaded in outside the large cylinder 1 of joint body, is evenly distributed with dop b41 on the other end inwall one circle of clamping sleeve 4, and is preferred; Dop b41 is three, and the bottom of dop b41 is fixed on clamping sleeve 4 inwalls, and dop b41 and clamping sleeve 4 inwalls are in a certain angle; According to the utility model; It is comparatively suitable that dop b41 and clamping sleeve 4 inwalls are 45 ° of angles, and the top of dop b41 is arranged rounded, and this diameter of a circle is identical with one section cylindrical external diameter of multistage cylindrical body 2 external diameters minimum; Preferably, clamping sleeve 4 inwalls are provided with the internal diameter of an end internal diameter of screw thread greater than the other end.
Multistage cylindrical body 2 outsides are provided with claw; The circumference of claw is fixed on the large cylinder 1 left end end face, and for holding the cavity of plastic rigid pipe 6 or plastic flexible pipe 7, claw comprises 4 dop a3 between claw and the multistage cylindrical body 2; Dop a3 evenly distributes on the circumference; The length of dop a3 is identical with the length of multistage cylindrical body 2, and dop a3 is a multi-section structure, the concavo-convex setting of outer surface.Screw on clamping sleeve 4 after inserting plastic rigid pipe 6 or flexible pipe 7; Clamping sleeve 4 inner clip head b41 extruding plastic hard tubes 6 or flexible pipe 7 and dop a3 boss; Further extruding plastic hard tube 6 of dop a3 or flexible pipe 7; The extruding of two place's dops makes on the more firm outer wall that is pressed on multistage cylindrical body 2 of plastic rigid pipe 6 or flexible pipe 7, reaches the purpose of connection, anti-loose and sealing.
The multistage cylindrical body 2 outer O type elastic seal rings 5 that also are with.When the external hard tube 6 of access used, as shown in Figure 2, elastic seal ring 5 was close to hard tube 6 mouths of pipe and is enclosed within on the multistage cylindrical body, seals; When inserting external hose 7, as shown in Figure 3, elastic seal ring 5 is enclosed within the external hose outside, and flexible pipe is played anticreep, seal action.
Multistage cylindrical body 2 is made up of cylindrical body and truncated cone that external diameter successively decreases gradually; Two adjacent cylindrical bodys connect through truncated cone; One section cylindrical body that the right output port of truncated cone and external diameter are big is tightly connected; One section cylindrical body that the left port of truncated cone and external diameter are little is tightly connected, and the cylindrical body external diameter that the right-hand member external diameter of truncated cone and external diameter are big is identical, and the cylindrical body external diameter that the left end external diameter of truncated cone and external diameter are little is identical.One section cylindrical external diameter of multistage cylindrical body 2 external diameters maximum is less than the external diameter of large cylinder 1.
Embodiment 2
A kind of universal joint, structure such as embodiment 1 are said, and different is:
Dop b41 is 4, and dop a3 is 5.

Claims (8)

1. universal joint; Comprise joint body and clamping sleeve, joint body and clamping sleeve are threaded, and it is characterized in that: described joint body comprises large cylinder and multistage cylindrical body; Large cylinder and multistage cylindrical body are the hollow setting; Cylindrical end of multistage and large cylinder are tightly connected, and described multistage cylindrical body comprises cylindrical body and the truncated cone that external diameter successively decreases gradually, connect through truncated cone between adjacent two cylindrical bodys.
2. a kind of universal joint according to claim 1; It is characterized in that: one section cylindrical body that the right output port of described truncated cone and external diameter are big is tightly connected; One section cylindrical body that the left port of truncated cone and external diameter are little is tightly connected; The cylindrical body external diameter that the right-hand member external diameter of truncated cone and external diameter are big is identical, and the cylindrical body external diameter that the left end external diameter of truncated cone and external diameter are little is identical.
3. a kind of universal joint according to claim 1 is characterized in that: one section cylindrical external diameter of described multistage cylindrical body external diameter maximum is less than the external diameter of large cylinder.
4. a kind of universal joint according to claim 1; It is characterized in that: described multistage cylindrical body is outside equipped with claw; The circumference of claw is fixed on the large cylinder one end end face, and for holding the cavity of flexible pipe or hard tube, described claw comprises at least three dops between claw and the described multistage cylindrical body; Dop evenly distributes on the circumference, and the length of dop is identical with the cylindrical length of multistage.
5. a kind of universal joint according to claim 1; It is characterized in that: described clamping sleeve one end inwall is provided with internal thread; Large cylinder is provided with the outside thread that is complementary with the clamping sleeve internal thread outward, is evenly distributed with dop on the other end inwall one circle of clamping sleeve, and said dop is at least three; The bottom of dop is fixed on the clamping sleeve inwall, and the top of dop is arranged rounded.
6. a kind of universal joint according to claim 5 is characterized in that: it is identical with one section cylindrical external diameter of multistage cylindrical body external diameter minimum that rounded diameter is arranged on the top of said dop.
7. a kind of universal joint according to claim 5 is characterized in that: said clamping sleeve inwall is provided with the internal diameter of an end internal diameter of screw thread greater than the other end.
8. a kind of universal joint according to claim 1 is characterized in that: described multistage cylindrical body also is with O type elastic seal ring outward.
CN201120253729U 2011-07-18 2011-07-18 Universal joint Expired - Fee Related CN202149302U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120253729U CN202149302U (en) 2011-07-18 2011-07-18 Universal joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120253729U CN202149302U (en) 2011-07-18 2011-07-18 Universal joint

Publications (1)

Publication Number Publication Date
CN202149302U true CN202149302U (en) 2012-02-22

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ID=45590361

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120253729U Expired - Fee Related CN202149302U (en) 2011-07-18 2011-07-18 Universal joint

Country Status (1)

Country Link
CN (1) CN202149302U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104802445A (en) * 2015-04-20 2015-07-29 张广山 Basket type tablet pressing machine air supply pipe fixing element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104802445A (en) * 2015-04-20 2015-07-29 张广山 Basket type tablet pressing machine air supply pipe fixing element

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120222

Termination date: 20170718

CF01 Termination of patent right due to non-payment of annual fee