CN201992220U - Spherical fastening-pressing type hose joint - Google Patents

Spherical fastening-pressing type hose joint Download PDF

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Publication number
CN201992220U
CN201992220U CN2011201206910U CN201120120691U CN201992220U CN 201992220 U CN201992220 U CN 201992220U CN 2011201206910 U CN2011201206910 U CN 2011201206910U CN 201120120691 U CN201120120691 U CN 201120120691U CN 201992220 U CN201992220 U CN 201992220U
Authority
CN
China
Prior art keywords
pipe
locking nut
joint
free
pressing type
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
CN2011201206910U
Other languages
Chinese (zh)
Inventor
陆颂荫
陆昱森
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.)
Ningbo Donggang Fastener Manufacturing Co Ltd
Original Assignee
Ningbo Donggang Fastener Manufacturing Co Ltd
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 Ningbo Donggang Fastener Manufacturing Co Ltd filed Critical Ningbo Donggang Fastener Manufacturing Co Ltd
Priority to CN2011201206910U priority Critical patent/CN201992220U/en
Application granted granted Critical
Publication of CN201992220U publication Critical patent/CN201992220U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a spherical fastening-pressing type hose joint, which comprises a joint body and a locking nut, wherein the joint body comprises a tail pipe part, a head pipe part and a bending pipe part, and one end of the bending pipe part is connected with one end of the head pipe part; the other end of the bending pipe part is connected with one end of the tail pipe part, and the tail pipe part, the bending pipe part and the head pipe part are integrated; the included angle between the axis of the tail pipe part and the axis of the head pipe part is 135 degrees, and the free end of the head pipe part is arranged in the locking nut; one end of the locking nut close to the free end of the head pipe part is provided with an annular limit retaining ring, and an annular groove into which the annular limit retaining ring on the locking nut is embedded is arranged on the outer circumference of the head pipe part; the annular limit retaining ring is in clearance fit with the annular groove, and the surface of the free end of the head pipe part is an arc surface; and the outer contour of the cross section of the locking nut is a regular pentagon. When the locking nut is tightened, a wrench is not easy to slip, and the sealing performance is high.

Description

A kind of sphere fastening-pressing type hose coupling
Technical field
The utility model relates to a kind of joint, specifically is a kind of sphere fastening-pressing type hose coupling.
Background technique
Hose coupling is a kind of parts that will be used to connect flexible pipe and machinery equipment, and flexible pipe is generally transport pipe, pneumatic tube and water pipe etc.The head of hose coupling generally is provided with locking nut, this locking nut is generally positive hexagon nut, this hexagon nut is when tightening with spanner or unclamping, the clamping part of spanner is clamped on two parallel side walls of hexagonal locking nut outer side wall, like this when tightening locking nut, because the external frame of positive hexagonal locking nut is near circular, excessive if exert oneself or overexert and to make locking nut outer side wall corner angle wearing and tearing, spanner is skidded, thereby can not tighten locking nut, make the sealability of hose coupling and machinery equipment joint bad like this.
When the hose coupling head was connected with machinery equipment such as valve, the head at hose coupling was provided with the sealing that a resilient pad improves the joint usually.The area of contact of the resilient pad that is provided with in the head of the hose coupling of prior art and the head of hose coupling is little, so sealability is not high, particularly under the situation that oil pressure or air pressure are bigger in machinery equipment, oil or gas in the machinery equipment can overflow from the head of hose coupling, thereby the head seal performance of hose coupling is reduced.
The model utility content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, provides a kind of when tightening locking nut, and spanner is difficult for skidding, and the high sphere fastening-pressing type hose coupling of sealability.
Technical solution of the present utility model is, a kind of sphere fastening-pressing type hose coupling with following structure is provided: it comprises joint body and locking nut, described joint body comprises tail pipe portion, pipe portion and bent portion, one end of described bent portion is connected with an end of a pipe portion, the other end of bent portion is connected with an end of tail pipe portion, described tail pipe portion, bent portion and a three of pipe portion are one, and the axis of tail pipe portion becomes 135 degree angles with an axis of pipe portion; The free end of described pipe portion is arranged in the locking nut, described locking nut is provided with the annular stop back-up ring near the free-ended end of a pipe portion, the excircle of described pipe portion is provided with the annular groove for the annular stop back-up ring embedding of locking nut, described annular stop back-up ring and annular groove Spielpassung; The free end end face of described pipe portion is a cambered surface, and the cross section external frame of described locking nut is a regular pentagon.
After adopting above structure, a kind of sphere fastening-pressing type of the utility model hose coupling compared with prior art, have the following advantages: on the excircle of head pipe portion, be provided with annular groove for the annular stop back-up ring embedding of locking nut, and annular stop back-up ring and annular groove Spielpassung, this annular stop back-up ring makes the joint body axial limiting in locking nut and joint body and locking nut can circumferentially be rotated, thereby makes the easier for installation of this sphere fastening-pressing type hose coupling; Moreover, because the cross section of the locking nut of this sphere fastening-pressing type hose coupling is a regular pentagon, thereby make spanner when the clamping locking nut screwing, be difficult for incline wearing and tearing with locking nut, thereby when tightening locking nut, spanner is difficult for skidding, and makes sphere fastening-pressing type hose coupling tightr with being connected of machinery equipment; In addition, the free end end face of pipe portion is a cambered surface, when tightening locking nut and be connected with machinery equipment, the resilient pad of placing in the locking nut is big with the free-ended curved end area of contact of a pipe portion, thereby has improved the sealability of this sphere fastening-pressing type hose coupling and machinery equipment joint.
As a kind of improvement, the tail pipe portion of described joint body is provided with the flexuose projection.Be installed in the tail pipe portion of joint body at flexible pipe after, this flexuose projection has increased the inwall of flexible pipe and the frictional force of tail pipe portion, makes the flexible pipe difficult drop-off.
Description of drawings
Fig. 1 is the structural representation of a kind of sphere fastening-pressing type of the utility model hose coupling.
Fig. 2 is the A-A sectional structure schematic representation of a kind of sphere fastening-pressing type of the utility model hose coupling in Fig. 1.
As shown in the figure:
1, locking nut, 2, a pipe portion, 3, bent portion, 4, tail pipe portion, 5, projection, 6, the annular stop back-up ring, 7, annular groove, 8, the free end end face.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1 and Figure 2,
A kind of sphere fastening-pressing type of the utility model hose coupling, it comprises joint body and locking nut 1, described joint body comprises tail pipe portion 4, a pipe portion 2 and bent portion 3, one end of described bent portion 3 is connected with an end of a pipe portion 2, the other end of bent portion 3 is connected with an end of tail pipe portion 4, described tail pipe portion 4, bent portion 3 and 2 three of pipe portion are one, and the axis of tail pipe portion 4 becomes 135 degree angles with an axis of pipe portion 2; The free end of described pipe portion 2 is arranged in the locking nut 1, described locking nut 1 is provided with annular stop back-up ring 6 near a pipe portion 2 free-ended ends, the excircle of described pipe portion 2 is provided with the annular groove 7 for annular stop back-up ring 6 embeddings of locking nut 1, described annular stop back-up ring 6 and annular groove 7 Spielpassung; The free end end face 8 of described pipe portion 2 is a cambered surface, and the cross section external frame of described locking nut 1 is a regular pentagon.
The tail pipe portion 4 of described joint body is provided with flexuose projection 5.

Claims (2)

1. sphere fastening-pressing type hose coupling, it comprises joint body and locking nut (1), it is characterized in that: described joint body comprises tail pipe portion (4), a pipe portion (2) and bent portion (3), one end of described bent portion (3) is connected with an end of pipe portion (2), the other end of bent portion (3) is connected with an end of tail pipe portion (4), described tail pipe portion (4), bent portion (3) and a three of pipe portion (2) are one, and the axis of tail pipe portion (4) becomes 135 degree angles with an axis of pipe portion (2); The free end of described pipe portion (2) is arranged in the locking nut (1), described locking nut (1) is provided with annular stop back-up ring (6) near a free-ended end of pipe portion (2), the excircle of described pipe portion (2) is provided with the annular groove (7) for annular stop back-up ring (6) embedding of locking nut (1), described annular stop back-up ring (6) and annular groove (7) Spielpassung; The free end end face (8) of described pipe portion (2) is a cambered surface, and the cross section external frame of described locking nut (1) is a regular pentagon.
2. a kind of sphere fastening-pressing type hose coupling according to claim 1 is characterized in that: the tail pipe portion (4) of described joint body is provided with flexuose projection (5).
CN2011201206910U 2011-04-15 2011-04-15 Spherical fastening-pressing type hose joint Expired - Fee Related CN201992220U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201206910U CN201992220U (en) 2011-04-15 2011-04-15 Spherical fastening-pressing type hose joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201206910U CN201992220U (en) 2011-04-15 2011-04-15 Spherical fastening-pressing type hose joint

Publications (1)

Publication Number Publication Date
CN201992220U true CN201992220U (en) 2011-09-28

Family

ID=44668710

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201206910U Expired - Fee Related CN201992220U (en) 2011-04-15 2011-04-15 Spherical fastening-pressing type hose joint

Country Status (1)

Country Link
CN (1) CN201992220U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105156806A (en) * 2015-09-17 2015-12-16 北京精密机电控制设备研究所 Hydraulic pipeline flexible connection structure and method suitable for compact space
CN109552647A (en) * 2018-11-02 2019-04-02 中国航空工业集团公司西安飞机设计研究所 A kind of banjo fixing butt jointing of composite material class revolving body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105156806A (en) * 2015-09-17 2015-12-16 北京精密机电控制设备研究所 Hydraulic pipeline flexible connection structure and method suitable for compact space
CN109552647A (en) * 2018-11-02 2019-04-02 中国航空工业集团公司西安飞机设计研究所 A kind of banjo fixing butt jointing of composite material class revolving body

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110928

Termination date: 20120415