CN203300471U - Combined type brake pullrod - Google Patents
Combined type brake pullrod Download PDFInfo
- Publication number
- CN203300471U CN203300471U CN2013203637417U CN201320363741U CN203300471U CN 203300471 U CN203300471 U CN 203300471U CN 2013203637417 U CN2013203637417 U CN 2013203637417U CN 201320363741 U CN201320363741 U CN 201320363741U CN 203300471 U CN203300471 U CN 203300471U
- Authority
- CN
- China
- Prior art keywords
- connection
- insulation support
- adapter sleeve
- sleeves
- support rods
- 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
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a combined type brake pullrod. The combined type brake pullrod comprises multiple insulation support rods and multiple connection sleeves, wherein the connection sleeves are hollow structures, an inner circumference wall of each connection sleeve and positions near two ends of each connection sleeve are provided with inner threads, one end of one insulation support rod is in thread connection with one end of one connection sleeve, any other insulation support rod is in thread connection with the other end of the connection sleeve, and unidirectional butt joint of the multiple insulation support rods is realized. According to the combined type brake pullrod, mutual butt joint of the insulation support rods is realized through the connection sleeves, adjustable length of the brake pullrod is realized, moreover, force at connection portions of the insulation support rods is relatively concentrated, after the connection sleeves are utilized for fastening connection, replacement of the connection sleeves is only needed when the connection sleeves are damaged, so damage to the insulation support rods is avoided, replacement cost is effectively reduced, and service life of the brake pullrod is improved correspondingly.
Description
Technical field
The utility model relates to a kind of electrician and uses operation tool, relates in particular to a kind of Combined brake pull rod.
Background technology
those skilled in the art should know, the brake pull-rod of two kinds of forms of existence of the prior art, respectively fixing brake pull-rod and length-adjustable brake pull-rod of length, the utility model relates to length-adjustable brake pull-rod, this on market kind of brake pull-rod has some eradication edge pressure pins and mutually docks and form, an end at every eradication edge pressure pin is offered inner chamber, and offer internal thread on the inwall of this inner chamber, and on the outer wall of the other end, offer external screw thread, then by external screw thread and the adaptation of internal thread, be connected to form every two and thoroughly do away with docking of edge pressure pin, yet the brake pull-rod of this structure is due to the stressed more concentrated and as easy as rolling off a log fatigue damage in joint position because of the insulation pressure pin, and then the direct damage of the pressure pin that causes insulating, cause great economic loss.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, provides a kind of simple in structure, reliable and practical and can effectively reduce the Combined brake pull rod of replacement cost.
For achieving the above object, the utility model adopts a kind of Combined brake pull rod, comprise some eradication edge pressure pins and several adapter sleeves, described adapter sleeve is hollow structure, and on the inner peripheral wall of described adapter sleeve, near the position at adapter sleeve two ends, offer internal thread, a described wherein end that thoroughly does away with the edge pressure pin forms and is threaded with a wherein end of described adapter sleeve, and wherein another eradication edge pressure pin forms and is threaded with the other end of this adapter sleeve arbitrarily, and then forms the unidirectional docking of some eradication edge pressure pins.
Concrete, on the inwall of described adapter sleeve, near centre position, have the defining flange that extends radially inwardly.
The utility model is by the above-mentioned improvement to prior art, owing to adopting adapter sleeve, described insulation pressure pin is realized to docking mutually, the apparent length-adjustable effect that reaches described brake pull-rod, simultaneously, stressed more concentrated due to the insulation pressure pin at joint, after adopting adapter sleeve to be fastenedly connected, when adapter sleeve damages because of the fatigue stress of insulation pressure pin, the adapter sleeve that only need more renew just can, the damage phenomenon that has prevented the insulation pressure pin occurs, effectively reduce replacement cost, improved accordingly the useful life of brake pull-rod.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment.
Fig. 2 is the schematic diagram of adapter sleeve in Fig. 1.
Embodiment
as Figure 1-Figure 2, specific embodiment of the utility model is a kind of Combined brake pull rod, as can be known in Fig. 1, comprise some eradication edge pressure pins 1 and several adapter sleeves 2, as can be known in conjunction with Fig. 2, described adapter sleeve 2 is hollow structure, and on the inner peripheral wall of described adapter sleeve 2, position near adapter sleeve 2 two ends offers internal thread, in the present embodiment, a described wherein end that thoroughly does away with edge pressure pin 1 forms and is threaded with a wherein end of described adapter sleeve 2, and wherein another eradication edge pressure pin 1 forms and is threaded with the other end of this adapter sleeve 2 arbitrarily, and then form the unidirectional docking of some eradication edge pressure pins 1.
Also obviously as can be known in Fig. 2, on the inwall of described adapter sleeve 2, near centre position, have the defining flange 20 that extends radially inwardly.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.Claim and equivalent thereof that the claimed scope of the utility model is appended define.
Claims (2)
1. Combined brake pull rod, it is characterized in that: comprise some eradication edge pressure pins and several adapter sleeves, described adapter sleeve is hollow structure, and on the inner peripheral wall of described adapter sleeve, near the position at adapter sleeve two ends, offer internal thread, a described wherein end that thoroughly does away with the edge pressure pin forms and is threaded with a wherein end of described adapter sleeve, and wherein another eradication edge pressure pin forms and is threaded with the other end of this adapter sleeve arbitrarily, and then forms the unidirectional docking of some eradication edge pressure pins.
2. a kind of Combined brake pull rod according to claim 1 is characterized in that: on the inwall of described adapter sleeve, near centre position, have the defining flange that extends radially inwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203637417U CN203300471U (en) | 2013-06-17 | 2013-06-17 | Combined type brake pullrod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203637417U CN203300471U (en) | 2013-06-17 | 2013-06-17 | Combined type brake pullrod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300471U true CN203300471U (en) | 2013-11-20 |
Family
ID=49576466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203637417U Expired - Fee Related CN203300471U (en) | 2013-06-17 | 2013-06-17 | Combined type brake pullrod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300471U (en) |
-
2013
- 2013-06-17 CN CN2013203637417U patent/CN203300471U/en not_active Expired - Fee Related
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Legal Events
| 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: 20131120 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |