CN216994721U - Brake power-off device with adjustable sensitivity - Google Patents
Brake power-off device with adjustable sensitivity Download PDFInfo
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- CN216994721U CN216994721U CN202220769221.5U CN202220769221U CN216994721U CN 216994721 U CN216994721 U CN 216994721U CN 202220769221 U CN202220769221 U CN 202220769221U CN 216994721 U CN216994721 U CN 216994721U
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- trigger element
- switch
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Abstract
The utility model relates to a brake power-off device with adjustable sensitivity, which comprises a brake oil cylinder, a brake crank, a push rod, a power-off switch and a power-off trigger element, wherein a brake crank mounting bracket is arranged outside the brake oil cylinder, one end of the brake crank is a connecting end, the connecting end of the brake crank is hinged to the brake crank mounting bracket through a first hinge shaft, and the push rod is hinged to the connecting end of the brake crank through a second hinge shaft; the connecting end of the brake crank is also fixedly provided with a power-off trigger element mounting block, the power-off trigger element mounting block is provided with a mounting hole, the power-off trigger element is clamped in the mounting hole and is in interference fit with the mounting hole, and the power-off switch is arranged near the brake crank mounting bracket; the adjusting screw is screwed in the mounting hole and abuts against one side, away from the power-off switch, of the power-off trigger element, and when the adjusting screw is screwed, the distance between the power-off trigger element and the power-off switch can be adjusted, so that the induction sensitivity between the power-off trigger element and the power-off switch can be flexibly adjusted; the brake has the advantages of high reliability, adjustable brake power-off stroke and the like.
Description
Technical Field
The utility model relates to the field of electric vehicle accessories, in particular to a brake power-off device with adjustable sensitivity.
Background
The brake crank power-off device of the electric vehicle is known to fix magnetic steel on a brake crank, and fix a reed switch (also called a magnetic reed switch) near a brake crank bracket, when the electric vehicle normally runs, the reed switch is in a disconnection state, during brake operation, brake action of the brake crank drives the magnetic steel to be close to the reed switch so as to excite the reed switch to be connected, and further a drive circuit of the electric vehicle is disconnected, when the brake crank is loosened, the brake crank returns to the original position under the action of a return spring and drives the magnetic steel to be far away from the reed switch, so that the reed switch returns to the disconnection state due to disappearance of magnetic force, and further the drive circuit of the electric vehicle is connected again.
And the brake power-off stroke of the brake crank (i.e. the stroke of driving the magnetic steel to be close to the reed pipe to excite the reed pipe to be switched on and switched off the electric vehicle driving circuit during braking) is related to the distance between the magnetic steel and the reed pipe, specifically, the larger the distance between the magnetic steel and the reed pipe is, the larger the brake power-off stroke of the brake crank is, and conversely, the smaller the distance between the magnetic steel and the reed pipe is, the smaller the brake power-off stroke of the brake crank is. However, in the prior art, the distance between the magnetic steel and the reed switch is usually not adjustable, which results in that, on the one hand, when the sensitivity between the magnetic steel and the reed switch is reduced due to frequent use and other reasons, the accuracy and stability of the brake power-off operation can be directly influenced, and on the other hand, a user cannot flexibly adjust the brake power-off stroke of the brake lever according to the use requirement, thereby influencing the use convenience.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a brake power-off device with adjustable sensitivity, so that the accuracy and stability of brake power-off operation are ensured on one hand, and the convenience and flexibility of use are improved on the other hand.
The purpose of the utility model is realized by the following technical scheme:
a brake power-off device with adjustable sensitivity comprises a brake oil cylinder, a brake crank, a push rod, a power-off switch and a power-off trigger element, wherein a brake crank mounting bracket is arranged outside the brake oil cylinder, one end of the brake crank is a connecting end, the other end of the brake crank is an operating end, the connecting end of the brake crank is hinged to the brake crank mounting bracket through a first hinged shaft, one end of the push rod is hinged to the connecting end of the brake crank through a second hinged shaft, and the other end of the push rod extends into the brake oil cylinder; the brake crank is characterized in that a connecting end of the brake crank is also fixedly provided with a power-off trigger element mounting block, the power-off trigger element mounting block is provided with a mounting hole, the power-off trigger element is clamped in the mounting hole and is in interference fit with the mounting hole, and the power-off switch is arranged near the brake crank mounting bracket and realizes an electric switch function according to the approach or the distance of the power-off trigger element; the adjusting screw is screwed in the mounting hole and abuts against one side, away from the power-off switch, of the power-off trigger element, and when the adjusting screw is screwed, the distance between the power-off trigger element and the power-off switch can be adjusted.
Furthermore, the inside mounting groove that is formed with of link of brake lever, first articulated shaft and second articulated shaft all run through in this mounting groove, outage trigger element installation piece embedding just clamp in the mounting groove on first articulated shaft and/or the second articulated shaft, outage trigger element installation piece still including expose in the installation department of mounting groove, the mounting hole is the through hole and sets up the installation department.
Further, the mounting hole is parallel to the first hinge shaft and the second hinge shaft, and the second hinge shaft is located between the first hinge shaft and the mounting hole.
Furthermore, the inner side of the power-off trigger element mounting block is provided with a first bayonet facing the opening of the first hinge shaft and a second bayonet facing the opening of the second hinge shaft, the first bayonet is clamped in the first hinge shaft, and the second bayonet is clamped in the second hinge shaft.
Furthermore, the outside of outage trigger component installation piece has outside open-ended third bayonet socket, still includes the locking piece, the locking piece card is gone into in the third bayonet socket and then will outage trigger component installation piece supports tightly and is in can not drop in the mounting groove.
Further, first bayonet socket with the second bayonet socket respectively with first articulated shaft with second articulated shaft clearance fit, just the opening width of first bayonet socket is less than the diameter of first articulated shaft, the opening width of second bayonet socket is less than the diameter of second articulated shaft.
Furthermore, still be equipped with on the outage trigger component installation piece with second bayonet socket intercommunication and towards outside open-ended dodge hole, should dodge the hole and can supply the push rod articulate in this one end tip of brake lever gets into.
Furthermore, brake lever installing support includes the extension board that a pair of interval set up, forms brake lever installation space between this pair of extension board, the link of brake lever is put into brake lever installation space and through first articulated shaft articulates on this pair of extension board.
Furthermore, an opening connecting ring positioned below the pair of support plates is further arranged outside the brake oil cylinder, a fixed plate is fixedly clamped at an opening part of the opening connecting ring, the upper part of the fixed plate extends to the outer side of one of the support plates, a containing cavity is formed in the upper part of the fixed plate, and the power-off switch is installed in the containing cavity.
Further, the power-off switch is a magnetic reed switch, and the power-off trigger element is a magnet.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model can adjust the distance between the power-off trigger element and the power-off switch, namely, the induction sensitivity between the power-off trigger element and the power-off switch can be flexibly adjusted according to requirements, thereby ensuring that the induction sensitivity between the power-off trigger element and the power-off switch is always kept in a reliable range on one hand, further ensuring the accuracy and stability of brake power-off operation, and realizing adjustment on the brake power-off stroke of the brake crank on the other hand, thereby being more suitable for the use habit of a user or the requirements of a use scene, and further improving the convenience and flexibility of use. Meanwhile, the distance between the power-off trigger element and the power-off switch can be adjusted very simply and conveniently by only screwing the adjusting screw and correspondingly adjusting the position of the power-off trigger element.
Drawings
Fig. 1 is a schematic front view of the braking power-off device of the present invention.
Fig. 2 is a schematic cross-sectional view of the braking de-energizing device of the present invention.
Fig. 3 is a schematic perspective view of the braking power-off device according to the present invention.
Fig. 4 is an exploded view of the braking power cutoff device according to the present invention.
Fig. 5 is a schematic structural diagram of a mounting block and a power-off trigger element in the present invention.
FIG. 6 is a schematic view of the latch block of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are given in the accompanying drawings.
As shown in fig. 1 to 6, the brake power-off device with adjustable sensitivity according to the present embodiment includes a brake cylinder 1, a brake lever 2, a push rod 3, a power-off switch 4 and a power-off trigger element 5, wherein a brake lever mounting bracket 6 is disposed outside the brake cylinder 1, one end of the brake lever 2 is a connection end 21, and the other end is an operation end 22, the connection end of the brake lever 2 is hinged to the brake lever mounting bracket 6 through a first hinge shaft 7, one end of the push rod 3 is hinged to the connection end 21 of the brake lever 2 through a second hinge shaft 8, and the other end of the push rod 3 extends into the brake cylinder 1; the link 21 of brake lever 2 still fixed mounting has outage trigger element installation piece 9, is equipped with mounting hole 91 on the outage trigger element installation piece 9, and outage trigger element 5 clamps in mounting hole 91 and interference fit with it, and outage switch 4 sets up near brake lever installing support 6 and according to being close to or keeping away from of outage trigger element 5 and realize the electric switch function.
The brake power-off device further comprises an adjusting screw 10, the adjusting screw 10 is in threaded connection with the mounting hole 91 and abuts against one side, away from the power-off switch 4, of the power-off trigger element 5, and when the adjusting screw 10 is screwed, the distance between the power-off trigger element 5 and the power-off switch 4 can be adjusted. Specifically, when the adjusting screw 10 is screwed, the brake trigger element 5 can be propped against to move towards the direction close to the power-off switch 4, so that the distance between the power-off trigger element 5 and the power-off switch 4 is shortened, the induction sensitivity between the power-off trigger element 5 and the power-off switch 4 is enhanced, the brake power-off stroke of the brake lever can be reduced, when the adjusting screw 10 is unscrewed, the brake trigger element 5 can be stretched into the mounting hole 91 from the side, away from the adjusting screw 10, by means of a rod-shaped tool and is knocked to move towards the direction far away from the power-off switch 4, the distance between the power-off trigger element 5 and the power-off switch 4 is increased, the induction sensitivity between the power-off trigger element 5 and the power-off switch 4 is weakened, and the brake power-off stroke of the brake lever can be increased.
In order to facilitate the installation of the power-off trigger element installation block 9, an installation groove 210 is formed inside the connection end 21 of the brake lever 2, the first hinge shaft 7 and the second hinge shaft 8 both penetrate through the installation groove 210, the power-off trigger element installation block 9 is embedded into the installation groove 210 and is clamped on the first hinge shaft 7 and the second hinge shaft 8 (in other alternative embodiments of the present invention, the power-off trigger element installation block 9 may also be embedded into the installation groove 210 and is clamped on the first hinge shaft 7 or the second hinge shaft 8), the power-off trigger element installation block 9 further includes an installation portion 92 exposed out of the installation groove 210, and the installation hole 91 is a through hole and is arranged on the installation portion 92.
As described above, the mounting hole 91 is parallel to the first hinge shaft 7 and the second hinge shaft 8, and the second hinge shaft 8 is located between the first hinge shaft 7 and the mounting hole 91.
As described above, the power-off trigger member mounting block 9 has the first bayonet 93 opened to the first hinge shaft 7 and the second bayonet 94 opened to the second hinge shaft 8 on the inner side thereof, the first bayonet 93 is engaged with the first hinge shaft 7 in a snap-fit manner, and the second bayonet 94 is engaged with the second hinge shaft 8 in a snap-fit manner. Meanwhile, the first and second bayonets 93 and 94 are in clearance fit with the first and second hinge shafts 7 and 8, respectively, so that the power-off trigger mounting block 9 can be rotated along with it when the brake lever 2 is rotated. In addition, in order to prevent the power-off trigger mounting block 9 from being disengaged during the rotation process, the opening width of the first bayonet 93 is smaller than the diameter of the first hinge shaft 7, and the opening width of the second bayonet 94 is smaller than the diameter of the second hinge shaft 8, during the installation, the first bayonet 93 and the second bayonet 94 are respectively clamped into the first hinge shaft 7 and the second hinge shaft 8 according to the elastic deformation of the power-off trigger mounting block 9.
As described above, the outer side of the power-off trigger element mounting block 9 has a third bayonet 95 that opens outwards, and further includes the locking block 11, and the locking block 11 is clamped into the third bayonet 95 to further tightly support the power-off trigger element mounting block 9 in the mounting groove 210, so as not to fall off by itself. When the power-off trigger element mounting block 9 needs to be detached, the locking block 11 can be firstly pulled out, and then the power-off trigger element mounting block 9 is pulled out from the mounting groove 210.
As mentioned above, the power-off trigger element mounting block 9 is further provided with an avoiding hole 96 communicated with the second bayonet 94 and opened towards the outside, and the avoiding hole 96 can be accessed by the end portion of the push rod 3 hinged to the brake lever 2.
As mentioned above, the brake lever mounting bracket 6 includes a pair of spaced support plates 61, a brake lever mounting space 62 is formed between the pair of support plates 61, and the connecting end 21 of the brake lever 2 is inserted into the brake lever mounting space 62 and hinged to the pair of support plates 61 through the first hinge shaft 7.
As described above, the outside of the brake cylinder 1 is further provided with the opening connecting ring 12 located below the pair of support plates 61, the opening portion of the opening connecting ring 12 is fixed with the fixing plate 13, the upper portion of the fixing plate 13 extends to the outer side of one of the support plates 61, the upper portion of the fixing plate 13 is formed with the cavity 130, and the power-off switch 4 is installed in the cavity 130.
In this embodiment, the power-off switch 4 is a magnetic reed switch, and the power-off trigger element 5 is a magnet.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the present invention are within the scope of the present invention.
Claims (10)
1. A brake power-off device with adjustable sensitivity comprises a brake cylinder, a brake lever, a push rod, a power-off switch and a power-off trigger element, wherein a brake lever mounting bracket is arranged outside the brake cylinder; the method is characterized in that: the brake crank is characterized in that a connecting end of the brake crank is also fixedly provided with a power-off trigger element mounting block, the power-off trigger element mounting block is provided with a mounting hole, the power-off trigger element is clamped in the mounting hole and is in interference fit with the mounting hole, and the power-off switch is arranged near the brake crank mounting bracket and realizes an electric switch function according to the approach or the distance of the power-off trigger element; the adjusting screw is screwed in the mounting hole and abuts against one side, away from the power-off switch, of the power-off trigger element, and when the adjusting screw is screwed, the distance between the power-off trigger element and the power-off switch can be adjusted.
2. The brake power-off device with adjustable sensitivity of claim 1, wherein: the inside mounting groove that is formed with of link of brake lever, first articulated shaft and second articulated shaft all run through in this mounting groove, outage trigger component installation piece embedding just clamp in the mounting groove on first articulated shaft and/or the second articulated shaft, outage trigger component installation piece still including expose in the installation department of mounting groove, the mounting hole is the through hole and sets up the installation department.
3. The brake power-off device with adjustable sensitivity of claim 2, wherein: the mounting hole is parallel to the first hinge shaft and the second hinge shaft, and the second hinge shaft is located between the first hinge shaft and the mounting hole.
4. An adjustable sensitivity brake de-energizing device according to claim 2 or 3, wherein: the inboard of outage trigger component installation piece has towards first articulated shaft open-ended first bayonet socket and towards second articulated shaft open-ended second bayonet socket, first bayonet socket cutting ferrule in first articulated shaft, the second bayonet socket cutting ferrule in the second articulated shaft.
5. The adjustable sensitivity brake power-off device as claimed in claim 4, wherein: the outside of outage trigger component installation piece has outside open-ended third bayonet socket, still includes the locking piece, the locking piece card is gone into in the third bayonet socket and then will outage trigger component installation piece supports tightly can not drop in the mounting groove.
6. The adjustable sensitivity brake power-off device as claimed in claim 4, wherein: first bayonet socket with the second bayonet socket respectively with first articulated shaft with second articulated shaft clearance fit, just the opening width of first bayonet socket is less than the diameter of first articulated shaft, the opening width of second bayonet socket is less than the diameter of second articulated shaft.
7. The brake power-off device with adjustable sensitivity of claim 4, wherein: still be equipped with on the outage trigger component installation piece with the second bayonet socket intercommunication just outside open-ended dodges the hole, should dodge the hole and can supply the push rod articulate in this one end tip of brake lever gets into.
8. An adjustable sensitivity brake de-energizing device according to claim 1, 2 or 3, wherein: the brake lever installing support comprises a pair of supporting plates arranged at intervals, a brake lever installing space is formed between the pair of supporting plates, and the connecting end of the brake lever is placed into the brake lever installing space and is hinged to the pair of supporting plates through the first hinge shaft.
9. The brake power-off device with adjustable sensitivity of claim 8, wherein: the brake oil cylinder is characterized in that an opening connecting ring is further arranged outside the brake oil cylinder and located below the pair of support plates, a fixing plate is fixed to an opening portion of the opening connecting ring in a clamping mode, the upper portion of the fixing plate extends to the outer side of one of the support plates, a containing cavity is formed in the upper portion of the fixing plate, and the power-off switch is installed in the containing cavity.
10. An adjustable sensitivity brake de-energizing device according to claim 1, 2 or 3, wherein: the power-off switch is a magnetic reed switch, and the power-off trigger element is a magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220769221.5U CN216994721U (en) | 2022-04-02 | 2022-04-02 | Brake power-off device with adjustable sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220769221.5U CN216994721U (en) | 2022-04-02 | 2022-04-02 | Brake power-off device with adjustable sensitivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216994721U true CN216994721U (en) | 2022-07-19 |
Family
ID=82375340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220769221.5U Active CN216994721U (en) | 2022-04-02 | 2022-04-02 | Brake power-off device with adjustable sensitivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216994721U (en) |
-
2022
- 2022-04-02 CN CN202220769221.5U patent/CN216994721U/en active Active
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| GR01 | Patent grant | ||
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