CN202115422U - Speaker switch mechanism of truck steering wheel - Google Patents
Speaker switch mechanism of truck steering wheel Download PDFInfo
- Publication number
- CN202115422U CN202115422U CN2011201941305U CN201120194130U CN202115422U CN 202115422 U CN202115422 U CN 202115422U CN 2011201941305 U CN2011201941305 U CN 2011201941305U CN 201120194130 U CN201120194130 U CN 201120194130U CN 202115422 U CN202115422 U CN 202115422U
- Authority
- CN
- China
- Prior art keywords
- steering wheel
- conducting rod
- switch mechanism
- insulation sleeve
- friction lining
- 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 - Lifetime
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Abstract
The utility model relates to a switch mechanism, in particular to a speaker switch mechanism of a truck steering wheel, which comprises a steering wheel body. A speaker cover is arranged on the steering wheel body, a switch mechanism is arranged in the steering wheel body, splines are sleeved outside a guide string, an insulating bush is sleeved outside the splines, the insulating bush and the steering wheel body are fixed together, a conductive pole is inserted into a connecting plate, a conductive pole spring is sleeved on the conductive pole, the conductive pole is inserted into the insulating bush, a friction plate is sleeved on the guide string, the friction plate is arranged below the splines, a conductive contact at the bottom of the conductive pole corresponds to the friction plate, a buffer cell is arranged at the back of the speaker cover, a buffer spring is arranged in the buffer cell, the other end of the buffer spring is in contact connection with the connecting plate, a speaker wire is connected onto the connecting plate, and a power cord is connected onto the friction plate. The speaker switch mechanism of the truck steering wheel is simple in structure, product reliability is improved, and production cost is reduced.
Description
Technical field
The utility model patent relates to a kind of switching mechanism, relates in particular to a kind of truck bearing circle horn switch mechanism.
Background technology
Present traditional truck bearing circle, the loudspeaker live wire all adopts conducting rod and friction lining in the bearing circle, has spring to withstand friction lining in the conducting rod; Conducting rod rotates with bearing circle, and long-term friction causes the conducting rod weak point that rubs; Even it is logical to rub; Cause bad contact to cause loudspeaker not ring, reduce greatly, need regular repairing or replacing to service life.Increased use cost, influence simultaneously is normal to be used.
The utility model content
The utility model mainly is to solve the deficiency that exists in the prior art; Providing a kind of saves former horn switch; Switch directly utilizes guide rod and friction lining contact point to replace horn switch; When bearing circle rotated, conducting rod and friction lining were separated, the truck bearing circle horn switch mechanism that conducting rod and contact friction sheet just contact in the time of need pinning loudspeaker.
The above-mentioned technical matters of the utility model mainly is able to solve through following technical proposals:
A kind of truck bearing circle horn switch mechanism comprises steering wheel main body, and described steering wheel main body is provided with horn hood; Be provided with switching mechanism in the described steering wheel main body, described switching mechanism comprises guiding tubing string, friction lining, conducting rod, spline, insulation sleeve, connecting strap, conducting rod spring and buffering spring, and described guiding tubing string overcoat has spline; Described spline is with insulation sleeve outward, and described insulation sleeve and steering wheel main body fix, and described conducting rod is pegged graft in the connecting strap; Be with the conducting rod spring on the conducting rod, described conducting rod is pegged graft in the insulation sleeve, and described friction lining socket-connects with the guiding tubing string; Described friction lining is positioned at the below of spline, and the conductive contact of described conducting rod bottom is corresponding with friction lining, and the back side of described horn hood is provided with dashpot; Be provided with recoil spring in the described dashpot; The other end of described recoil spring touches with connecting strap mutually, is connected with horn cable on the described connecting strap, is connected with power lead on the described friction lining.
Simple in structure, when loudspeaker were pressed, recoil spring drove connecting strap to pressing down, and connecting strap presses down and makes conducting rod to pressing down, and makes conductive contact contact with friction lining, and loudspeaker are sounded.Unclamp loudspeaker, conducting rod spring return, recoil spring is return also, makes conductive contact separate with friction lining.Improved the life-span of using greatly, the reliability of simultaneously each blast the horn has improved.
As preferably, the end of described guiding tubing string is with packing ring, and described packing ring and insulation sleeve are through the crimping of locking screw parent phase.
As preferably, the end of described conductive contact is a semicircle shape, and the cross-sectional plane of described insulation sleeve is " T " shape.
As preferably, described conduction tubing string and spline are interference fit.
Therefore, a kind of truck bearing circle horn switch mechanism of the utility model, simple in structure, improve product reliability, reduce production costs.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment 1: as shown in Figure 1, a kind of truck bearing circle horn switch mechanism comprises steering wheel main body 1; Described steering wheel main body 1 is provided with horn hood 2, is provided with switching mechanism in the described steering wheel main body 1, and described switching mechanism comprises guiding tubing string 3, friction lining 4, conducting rod 5, spline 6, insulation sleeve 7, connecting strap 8, conducting rod spring 9 and buffering spring 10; The described guiding tubing string 3 outer splines 6 that are with, the described spline 6 outer insulation sleeves 7 that are with, described insulation sleeve 7 fixes with steering wheel main body 1; Described conducting rod 5 grafting are gone in the connecting strap 8, are with conducting rod spring 9 on the conducting rod 5, and described conducting rod 5 pegs graft in the insulation sleeve 7; Described friction lining 4 socket-connects with guiding tubing string 3, and described friction lining 4 is positioned at the below of spline 6, and the conductive contact 11 of described conducting rod 5 bottoms is corresponding with friction lining 4; The back side of described horn hood 2 is provided with dashpot 14; Be provided with recoil spring 10 in the described dashpot 14, the other end of described recoil spring 10 touches with connecting strap 8 mutually, is connected with horn cable 15 on the described connecting strap 8; Be connected with power lead 16 on the described friction lining 4; The end of described guiding tubing string 3 is with packing ring 12, and described packing ring 12 passes through jam nut 13 crimping mutually with insulation sleeve 7, and the end of described conductive contact 11 is a semicircle shape; The cross-sectional plane of described insulation sleeve 7 is " T " shape, and described conduction tubing string 3 is an interference fit with spline 6.
Claims (4)
1. truck bearing circle horn switch mechanism, it is characterized in that: comprise steering wheel main body (1), described steering wheel main body (1) is provided with horn hood (2); Described steering wheel main body is provided with switching mechanism in (1); Described switching mechanism comprises guiding tubing string (3), friction lining (4), conducting rod (5), spline (6), insulation sleeve (7), connecting strap (8), conducting rod spring (9) and buffering spring (10), the outer spline (6) that is with of described guiding tubing string (3), the outer insulation sleeve (7) that is with of described spline (6); Described insulation sleeve (7) fixes with steering wheel main body (1); Described conducting rod (5) grafting is gone in the connecting strap (8), is with conducting rod spring (9) on the conducting rod (5), and described conducting rod (5) pegs graft in the insulation sleeve (7); Described friction lining (4) socket-connects with guiding tubing string (3); Described friction lining (4) is positioned at the below of spline (6), and the conductive contact (11) of described conducting rod (5) bottom is corresponding with friction lining (4), and the back side of described horn hood (2) is provided with dashpot (14); Be provided with recoil spring (10) in the described dashpot (14); The other end of described recoil spring (10) touches with connecting strap (8) mutually, is connected with horn cable (15) on the described connecting strap (8), is connected with power lead (16) on the described friction lining (4).
2. a kind of truck bearing circle horn switch mechanism according to claim 1, it is characterized in that: the end of described guiding tubing string (3) is with packing ring (12), and described packing ring (12) passes through jam nut (13) crimping mutually with insulation sleeve (7).
3. a kind of truck bearing circle horn switch mechanism according to claim 1 and 2, it is characterized in that: the end of described conductive contact (11) is a semicircle shape, the cross-sectional plane of described insulation sleeve (7) is " T " shape.
4. a kind of truck bearing circle horn switch mechanism according to claim 1 and 2 is characterized in that: described conduction tubing string (3) is an interference fit with spline (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201941305U CN202115422U (en) | 2011-06-10 | 2011-06-10 | Speaker switch mechanism of truck steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201941305U CN202115422U (en) | 2011-06-10 | 2011-06-10 | Speaker switch mechanism of truck steering wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202115422U true CN202115422U (en) | 2012-01-18 |
Family
ID=45456509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201941305U Expired - Lifetime CN202115422U (en) | 2011-06-10 | 2011-06-10 | Speaker switch mechanism of truck steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202115422U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231340A (en) * | 2011-06-10 | 2011-11-02 | 杭州梵隆方向盘有限公司 | Switching mechanism of truck steering-wheel horn |
| CN113815705A (en) * | 2021-09-22 | 2021-12-21 | 江苏徐工工程机械研究院有限公司 | Steering wheel assembly and engineering vehicle |
-
2011
- 2011-06-10 CN CN2011201941305U patent/CN202115422U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231340A (en) * | 2011-06-10 | 2011-11-02 | 杭州梵隆方向盘有限公司 | Switching mechanism of truck steering-wheel horn |
| CN113815705A (en) * | 2021-09-22 | 2021-12-21 | 江苏徐工工程机械研究院有限公司 | Steering wheel assembly and engineering vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120118 Effective date of abandoning: 20130925 |
|
| RGAV | Abandon patent right to avoid regrant |