CN204937120U - A kind of brake cable automatic tightening device - Google Patents
A kind of brake cable automatic tightening device Download PDFInfo
- Publication number
- CN204937120U CN204937120U CN201520671469.8U CN201520671469U CN204937120U CN 204937120 U CN204937120 U CN 204937120U CN 201520671469 U CN201520671469 U CN 201520671469U CN 204937120 U CN204937120 U CN 204937120U
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- CN
- China
- Prior art keywords
- brake cable
- ratchet
- rocking bar
- automatic tightening
- pull bar
- 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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Abstract
The utility model relates to mechanical type brake system, is specifically related to a kind of brake cable automatic tightening device.Current, using brake cable as the mechanical type brake system of drive disk assembly, operation is tightened up for brake cable, also need to implement manually, safeguard frequent and inconvenient.Not enough for this point, the utility model provides a kind of brake cable automatic tightening device, comprises ratchet device, connecting rod, rocking bar, pull bar, track adjusting wheel, line wheel, brake cable.Described utility model, the transmission pulling force distributed by pull bar, driving pawl mechanism makes intermittent moment, and then tightens up brake cable, realizes the automatic tightening of brake cable with this, and that effectively reduces brake cable tightens up frequency of maintenance.
Description
Technical field
The utility model relates to mechanical type brake system, is specifically related to a kind of brake cable automatic tightening device.
Background technology
Mechanical type brake system in use, because brake facing weares and teares gradually, Brake displacement needed for control for brake will expand gradually, for avoiding causing brake system failure, inefficacy thus, usually need to tighten up drive disk assembly, reduce the required displacement of braking, thus recover the braking effect of brake system.Current, using brake cable as the mechanical type brake system of drive disk assembly, operation is tightened up for brake cable, also need to implement manually, safeguard frequent and inconvenient.
Summary of the invention
For not enough described in background technology, the utility model provides a kind of brake cable automatic tightening device.
A kind of brake cable automatic tightening device, it is by ratchet device, connecting rod, rocking bar, pull bar, track adjusting wheel, line is taken turns, brake cable is formed, described ratchet device refers to internal messing ratchet device or external toothing ratchet device, ratchet device is by frame, ratchet, retaining pawl, ratchet, spring, rocking bar is formed, its interval moves across connecting rod and is controlled by rocking bar, described rocking bar is also connected to pull bar, and between rocking bar and pull bar, be provided with interlock space, described pull bar is connected to another connecting rod, connecting rod is connected to track adjusting wheel, around brake cable in described track adjusting wheel, one end of described brake cable extends to outside frame through frame side wall, the other end is fixed on the side of line wheel, described line wheel is fixed on ratchet, and with ratchet common rotary axis.
A kind of brake cable automatic tightening device described above, the connecting rod between its ratchet device and rocking bar, also can be substituted by gear cluster.
A kind of brake cable automatic tightening device described above, its pull bar also can be substituted by rocking bar.
A kind of brake cable automatic tightening device described above, its ratchet device further comprises ratchet device engagement control switch, described ratchet device engagement control switch is made up of push rod and spring, its push rod is connected on frame side wall, push rod outside frame side wall and between frame, spring is set, inside frame side wall, push rod separates two terminations, and two terminations extend the outside to the ratchet in ratchet device and retaining pawl respectively.
Compared with prior art, a kind of brake cable automatic tightening device provided by the utility model, by the automatic tightening to brake cable, effectively reduce frequency and number of times that brake system drive disk assembly tightens up maintenance, prevent simultaneously because of be negligent of drive disk assembly tighten up safeguard and cause the malfunctioning of brake system or lost efficacy.
Accompanying drawing explanation
Topology view when Fig. 1 is the utility model employing internal messing ratchet device.
Fig. 2 is that the utility model adopts internal messing ratchet device to reach topology view when brake cable tightens up condition.
When Fig. 3 is the utility model employing internal messing ratchet device, ratchet engagement control switch disconnects topology view when ratchet, retaining pawl and ratchet meshing relation.
Fig. 4 is topology view when the utility model adopts external toothing ratchet device, gear cluster substitutes connecting rod, rocking bar substitutes pull bar.
Fig. 5 is that the utility model adopts external toothing ratchet device, gear cluster substitutes connecting rod, rocking bar substitutes pull bar, and reaches topology view when brake cable tightens up condition.
When Fig. 6 is the utility model employing external toothing ratchet device, ratchet engagement control switch disconnects topology view when ratchet, retaining pawl and ratchet meshing relation.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described further below by specific embodiment:
As shown in Figures 1 to 6, a kind of brake cable automatic tightening device described in embodiment, comprises ratchet device (frame 1, ratchet 2, retaining pawl 3, spring 4, ratchet 5, spring 6, rocking bar 7), connecting rod 8, gear cluster 9, rocking bar 10, pull bar 11, rocking bar 12, connecting rod 13, track adjusting wheel 14, brake cable 15, line wheel 16, ratchet device engagement control switch (push rod 17, spring 18).
Embodiment 1
As Fig. 1, shown in 2, ratchet device (1 ~ 7) controls its intermittent moment through connecting rod 8 by rocking bar 10, rocking bar 10 frame is above pull bar 11, pull bar 11 is provided with boss in the both sides of rocking bar 10, the minimum aperture of configured left boss and rocking bar 10 is the interlock space of pull bar 11 and rocking bar 10, pull bar 11 is through frame 1 sidewall, and limit it pull direction by frame 1, the left side of pull bar 11 connects connecting rod 13, connecting rod 13 is connected to track adjusting wheel 14, brake cable 15 is through frame 1 sidewall, walk around track adjusting wheel 14, the left side of fixing online wheel 16, line wheel 16 is fixed on ratchet 2, and with ratchet common rotary axis.Now, using pull bar 11 as the input end controlled, when it moves to the right, brake cable 15 is subject to the traction of track adjusting wheel 14 and produces movement, after the movement of pull bar 11 makes to reduce to zero during the interlock space of pull bar 11 and rocking bar 10, pull bar 11 and rocking bar 10 produce interaction relation, continue to pull pull bar 11 driving pawl mechanism (1 ~ 7) to be moved, line wheel 16 and ratchet 2 synchronous axial system, and brake cable 15 is wound around on the hand of rotation of line wheel 16, tighten up, after the movement of pull bar 11 makes retaining pawl 3 be engaged to next gear teeth, under the restriction of retaining pawl 3, be wound into the brake cable 15 part line segment on line wheel 16, to do not returned when pull bar 11 resets, now reach the object of brake cable automatic tightening.
As shown in Figure 1,3, under internal messing ratchet device (1 ~ 7) is in the prerequisite of initial condition, the termination of push rod 17 in frame 1 of ratchet device engagement control switch (17 ~ 18) extends to outside the boss on retaining pawl 3, ratchet 5.When promotion push rod 17 moves in frame, spring 18 is squeezed and produces compression, and retaining pawl 3, ratchet 5 are squeezed and produce rotation, and ratchet 2 and retaining pawl 3, ratchet 5 depart from engagement thus; Unclamp push rod 17, spring 18 makes push rod 17 reset, and spring 4, spring 6 make retaining pawl 3 respectively, ratchet 5 resets, and ratchet 2 and retaining pawl 3, ratchet 5 engage again.
Embodiment 2
As Fig. 4, shown in 5, two gears of gear cluster 9 are separately fixed at the termination, side of rocking bar 7 and rocking bar 10, ratchet device (1 ~ 7) controls its intermittent moment through gear cluster 9 by rocking bar 10, rocking bar 10 frame is above rocking bar 12, rocking bar 12 has circular opening boss in the arranged outside of rocking bar 10, minimum aperture between boss open lower side anchor ring and rocking bar 10 side surface is the interlock space of rocking bar 12 and rocking bar 10, connecting rod 13 is connected on the left of rocking bar 12, connecting rod 13 is connected to track adjusting wheel 14, brake cable 15 is through frame 1 sidewall, walk around track adjusting wheel 14, the side of fixing online wheel 16, line wheel 16 is fixed on ratchet 2, and with ratchet common rotary axis.Now, using rocking bar 12 as the input end controlled, when it rotates to the right, brake cable 15 is subject to the traction of track adjusting wheel 14 and produces movement, when rocking bar 12 turns over certain angle, when making rocking bar 12 reduce to zero with the interlock space of rocking bar 10, rocking bar 12 and rocking bar 10 collide and produce interaction relation, be rotated further rocking bar 12 driving pawl mechanism (1 ~ 7) is moved, line wheel 16 and ratchet 2 synchronous axial system, and brake cable 15 is wound around on the hand of rotation of line wheel 16, tighten up, after the rotation of rocking bar 12 makes retaining pawl 3 be engaged to next gear teeth, under the restriction of retaining pawl 3, be wound into the brake cable 15 part line segment on line wheel 16, to do not returned when pull bar 11 resets, now reach the object of brake cable automatic tightening.
As shown in Fig. 4,6, under mesh ratchet gear mechanism (1 ~ 7) is in the prerequisite of initial condition outside, the termination of push rod 17 in frame 1 of ratchet device engagement control switch (17 ~ 18) extends to the flange outer sides of retaining pawl 3, ratchet 5.When promotion push rod 17 moves in frame, spring 18 is squeezed and compresses, and retaining pawl 3, ratchet 5 are squeezed and produce rotation, and ratchet 2 and retaining pawl 3, ratchet 5 depart from engagement thus; Unclamp push rod 17, spring 18 makes push rod 17 reset, and spring 4, spring 6 make retaining pawl 3 respectively, ratchet 5 resets, and ratchet 2 and retaining pawl 3, ratchet 5 engage again.
The foregoing is only preferred embodiment of the present utility model; be not limited to scope of patent protection of the present utility model; all within this utility model concept, the amendment made, equivalent conversion, improvement etc. all should be included within protection domain of the present utility model.
Claims (4)
1. a brake cable automatic tightening device, it is by ratchet device, connecting rod, rocking bar, pull bar, track adjusting wheel, line is taken turns, brake cable is formed, it is characterized in that, described ratchet device refers to internal messing ratchet device or external toothing ratchet device, ratchet device is by frame, ratchet, retaining pawl, ratchet, spring, rocking bar is formed, its interval moves across connecting rod and is controlled by rocking bar, described rocking bar is also connected to pull bar, and interlock space is set between rocking bar and pull bar, described pull bar is connected to another connecting rod, connecting rod is connected to track adjusting wheel, around brake cable in described track adjusting wheel, one end of described brake cable extends to outside frame through frame side wall, the other end is fixed on the side of line wheel, described line wheel is fixed on ratchet, and with ratchet common rotary axis.
2. a kind of brake cable automatic tightening device as claimed in claim 1, is characterized in that the connecting rod between described ratchet device and rocking bar also can be substituted by gear cluster.
3. a kind of brake cable automatic tightening device as claimed in claim 1, it is characterized in that, described pull bar also can be substituted by rocking bar.
4. a kind of brake cable automatic tightening device as claimed in claim 1, it is characterized in that, described ratchet device further comprises ratchet device engagement control switch, described ratchet device engagement control switch is made up of push rod and spring, its push rod is connected on frame side wall, push rod outside frame side wall and arrange spring between frame, inside frame side wall, push rod separates two terminations, and two terminations extend the outside to the ratchet in ratchet device and retaining pawl respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520671469.8U CN204937120U (en) | 2015-09-01 | 2015-09-01 | A kind of brake cable automatic tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520671469.8U CN204937120U (en) | 2015-09-01 | 2015-09-01 | A kind of brake cable automatic tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204937120U true CN204937120U (en) | 2016-01-06 |
Family
ID=55004566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520671469.8U Expired - Fee Related CN204937120U (en) | 2015-09-01 | 2015-09-01 | A kind of brake cable automatic tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204937120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777000A (en) * | 2020-07-14 | 2020-10-16 | 熊卫明 | Elevator speed limiting device for power maintenance |
-
2015
- 2015-09-01 CN CN201520671469.8U patent/CN204937120U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777000A (en) * | 2020-07-14 | 2020-10-16 | 熊卫明 | Elevator speed limiting device for power maintenance |
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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: 20160106 Termination date: 20160901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |