CN201963691U - Bolted joint - Google Patents

Bolted joint Download PDF

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Publication number
CN201963691U
CN201963691U CN2011200594139U CN201120059413U CN201963691U CN 201963691 U CN201963691 U CN 201963691U CN 2011200594139 U CN2011200594139 U CN 2011200594139U CN 201120059413 U CN201120059413 U CN 201120059413U CN 201963691 U CN201963691 U CN 201963691U
Authority
CN
China
Prior art keywords
bar
thick
screwed joint
face
taper
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
CN2011200594139U
Other languages
Chinese (zh)
Inventor
孙浩儿
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 HAOBO COMMERCE CO Ltd
Original Assignee
NINGBO HAOBO COMMERCE 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 HAOBO COMMERCE CO Ltd filed Critical NINGBO HAOBO COMMERCE CO Ltd
Priority to CN2011200594139U priority Critical patent/CN201963691U/en
Application granted granted Critical
Publication of CN201963691U publication Critical patent/CN201963691U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a bolted joint, which comprises a thin rod (1) and a thick rod (2). The thin rod (1) is connected with the thick rod (2). The thick rod (2) is provided with a threaded hole (2.1) extending from the free end of the thick rod (2) along the axial direction of the thick rod (2). The outer peripheral wall of the thin rod is provided with an external screw thread (1.1). The external screw thread (1.1) is matched with an internal screw thread of the threaded hole (2.1). The bolted joint is convenient to assemble and disassemble, has strong anti-tensile strength and is simple to assemble.

Description

Screwed joint
Technical field
The utility model relates to a kind of screwed joint.
Background technique
In mechanical field through regular meeting owing to reasons such as lengthening are used joint; and traditional joint much all is to adopt the mode of welding to be connected on the part; bother and weld not only dismounting; stretching resistance is also little; therefore easily the environment of some inclement conditions (strong) as shaking down generation break, phenomenon such as explosion, thereby the generation that causes the accident.And be used in large-scale joint in the technical fields such as tunnel, mining as those, and because itself volume is big, quality heavy, carry out the integral installation timing after being welded on the part, carry also very inconveniently, therefore just increased the difficulty of assembling.
The model utility content
The technical problems to be solved in the utility model is, provide a kind of easy accessibility, stretching resistance strong, assemble simple screwed joint.
Technical solution of the present utility model is, a kind of screwed joint with following structure is provided, and comprises thin bar and thick bar, and described thin bar is connected with bar slightly; Described thick bar is provided with from thick bar free end along the thick axially extended tapped hole of bar; The periphery wall of described thin bar is provided with outside thread; The internal thread of described outside thread and tapped hole matches.
After adopting above structure, the utility model screwed joint compared with prior art has the following advantages:
Because the thick bar of screwed joint of the present utility model is provided with tapped hole, therefore the screwed joint of this kind structure can screw in mode with the externally threaded part that matches with it and part by tapped hole and join, easy accessibility, the stretching resistance that is threaded is strong, and assembling is simple; Because the internal thread of described outside thread and tapped hole matches, therefore, also can interconnect between two identical screwed joints again, can select the quantity of screwed joint as required, promptly can connect one, also can connect two.
As a kind of improvement of the present utility model, the radius of described tapped hole and described thick bar coaxial line and described tapped hole is half of radius of described thick bar.Can guarantee the intensity of screwed joint like this.
As another kind of improvement the of the present utility model, the free-ended end face of described thin bar is provided with the regular polygon bolt head; The axis of the center line of described regular polygon bolt head and thin bar on same straight line and the regular polygon bolt head rib parallel with center line to the perpendicular distance of center line less than the radius of bar carefully.Because the free end of thin bar is provided with the regular polygon bolt head, can utilize instrument to assemble, and is more convenient to operate; Again since the axis of the center line of regular polygon bolt head and thin bar on same straight line and the regular polygon bolt head rib parallel with center line to the perpendicular distance of center line less than the radius of bar carefully, when a screwed joint screwed in the tapped hole of another screwed joint, bolt head can not hinder the rotation of screwed joint like this.
Also have a kind of improvement as of the present utility model, is connected by taper between described thin bar and the thick bar, the end face of the big end of described taper is superimposed with the end face of bar slightly and be connected, and the end face of described taper small end is superimposed with the end face of bar carefully and be connected.Described taper can reduce stress and concentrate.
Also have a kind of improvement as of the present utility model, the free-ended port of described thick bar is provided with taper mouth, and the diameter of the inner of described taper mouth is less than the diameter of the outer end of described taper mouth.Because the port of thick bar is provided with taper mouth, when screw rod is put into tapped hole like this, can not blocked by threaded bores, to avoid damaging the screw thread on the screw rod.
Description of drawings
Fig. 1 is the main TV structure schematic representation of screwed joint of the present utility model.
Fig. 2 is the left TV structure schematic representation of screwed joint of the present utility model.
Shown in the figure: 1, thin bar, 1.1, outside thread, 1.2, the regular polygon bolt head, 2, thick bar, 2.1, tapped hole, 2.2, taper mouth, 3, taper.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
See also Figure 1 and Figure 2, screwed joint of the present utility model comprises thin bar 1 and thick bar 2, and described thin bar 1 is connected with thick bar 2.Described thick bar 2 is provided with from the thick bar 2 axially extended tapped holes 2.1 in thick bar 2 free ends edge, and the periphery wall of described thin bar 1 is provided with outside thread 1.1; Described outside thread 1.1 matches with the internal thread of tapped hole 2.1, if two identical screwed joints are promptly arranged, the outside thread of a screwed joint can fit in the tapped hole of another screwed joint.The radius of described tapped hole 2.1 and described thick bar 2 coaxial lines and described tapped hole 2.1 is half of radius of described thick bar 2.Described thin bar 1 free-ended end face is provided with regular polygon bolt head 1.2; The axis of the center line of described regular polygon bolt head 1.2 and thin bar 1 on same straight line and regular polygon bolt head 1.2 rib parallel with center line to the perpendicular distance of center line less than the radius of bar 1 carefully.In this specific embodiment, described regular polygon bolt head 1.2 is square head, and is easy to process.
Is connected by taper 3 between described thin bar 1 and the thick bar 2, the end faces of described taper 3 big ends are superimposed with the end face of bar 2 slightly and be connected, and the end face of described taper 3 small ends is superimposed with the end face of bar 1 carefully and be connected.The free-ended port of described thick bar 2 is provided with taper mouth 2.2, and the diameter of the inner of described taper mouth 2.2 is less than the diameter of the outer end of described taper mouth 2.2.

Claims (5)

1. screwed joint is characterized in that: comprise thin bar (1) and thick bar (2), described thin bar (1) is connected with bar (2) slightly; Described thick bar (2) is provided with from thick bar (2) free end along the thick axially extended tapped hole of bar (2) (2.1); The periphery wall of described thin bar is provided with outside thread (1.1); Described outside thread (1.1) matches with the internal thread of tapped hole (2.1).
2. screwed joint according to claim 1 is characterized in that: the radius of described tapped hole (2.1) and described thick bar (2) coaxial line and described tapped hole (2.1) is half of radius of described thick bar (2).
3. screwed joint according to claim 1 is characterized in that: the free-ended end face of described thin bar (1) is provided with regular polygon bolt head (1.2); The axis of the center line of described regular polygon bolt head (1.2) and thin bar (1) on same straight line and regular polygon bolt head (1.2) rib parallel with center line to the perpendicular distance of center line less than the radius of bar (1) carefully.
4. screwed joint according to claim 1, it is characterized in that: be connected by taper (3) between described thin bar (1) and the thick bar (2), the end face of the big end of described taper (3) is superimposed with the end face of thick bar (2) and be connected, and the end face of described taper (3) small end is superimposed with the end face of bar (1) carefully and be connected.
5. screwed joint according to claim 1 is characterized in that: the free-ended port of described thick bar (2) is provided with taper mouth (2.2), and the diameter of the inner of described taper mouth (2.2) is less than the diameter of the outer end of described taper mouth (2.2).
CN2011200594139U 2011-03-03 2011-03-03 Bolted joint Expired - Fee Related CN201963691U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200594139U CN201963691U (en) 2011-03-03 2011-03-03 Bolted joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200594139U CN201963691U (en) 2011-03-03 2011-03-03 Bolted joint

Publications (1)

Publication Number Publication Date
CN201963691U true CN201963691U (en) 2011-09-07

Family

ID=44526226

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200594139U Expired - Fee Related CN201963691U (en) 2011-03-03 2011-03-03 Bolted joint

Country Status (1)

Country Link
CN (1) CN201963691U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777467A (en) * 2012-08-07 2012-11-14 苏州宝强精密螺丝有限公司 Stackable type bolt
CN109667886A (en) * 2019-01-10 2019-04-23 南通拓新自动化设备科技有限公司 A kind of fast joint structure of modular plastic foraminous conveyer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777467A (en) * 2012-08-07 2012-11-14 苏州宝强精密螺丝有限公司 Stackable type bolt
CN109667886A (en) * 2019-01-10 2019-04-23 南通拓新自动化设备科技有限公司 A kind of fast joint structure of modular plastic foraminous conveyer

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

Granted publication date: 20110907

Termination date: 20140303