CN212004036U - Gear rack, chain wheel and chain locking device - Google Patents
Gear rack, chain wheel and chain locking device Download PDFInfo
- Publication number
- CN212004036U CN212004036U CN202020429023.5U CN202020429023U CN212004036U CN 212004036 U CN212004036 U CN 212004036U CN 202020429023 U CN202020429023 U CN 202020429023U CN 212004036 U CN212004036 U CN 212004036U
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- bolt
- gear
- rack
- stage step
- chain
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Abstract
The utility model discloses a gear rack, chain wheel and chain locking device, which comprises a gear box, wherein a rack is arranged in the middle of the gear box in a penetrating way, a plurality of pressing wheels are arranged on the tooth back side of the rack, and the pressing wheels are all abutted against the surface of the tooth back; the flank of tooth side of rack is equipped with the gear, and the top of gear is equipped with the bolt, the lower extreme of bolt just is the type profile of tooth with gear matched with, and the upper portion of bolt is for being the cylindric of tertiary ladder, and the upper portion of bolt all inserts in fixing support, fixing support install on the box of gear box, fixing support's inside is equipped with the bolt groove coaxial with bolt upper portion, the middle part in bolt groove is equipped with spacing boss, and the solenoid valve is installed on fixing support's upper portion, the solenoid valve cover locate on the tertiary ladder of bolt. The utility model discloses a solenoid valve control bolt up-and-down motion can prevent effectively that factors such as gliding, broken axle, shaft key from cuting and the accident of falling that causes can change equipment such as motor or speed reducer under no support state.
Description
Technical Field
The utility model particularly relates to a rack and pinion, sprocket chain locking device.
Background
When the existing gear rack and chain wheel and chain device is used, the falling accident is easy to happen if the problems of motor halt, shaft breakage, shaft key shearing and the like occur; and when motor or speed reducer need be changed, need use subassembly such as pin to block the device, cause the damage to the device easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art, and provides a gear rack and sprocket chain locking device which comprises a gear box, wherein a rack is arranged in the middle of the gear box in a penetrating way, a plurality of pressing wheels are arranged on the tooth back side of the rack, and the pressing wheels are all abutted against the surface of the tooth back; a gear is arranged on the side of the tooth surface of the rack, the gear is meshed with the rack, a bolt is arranged above the gear, the lower end of the bolt is opposite to the gear and is in a similar tooth shape matched with the gear, the upper part of the bolt is cylindrical in a three-stage step shape, the bolt is a first-stage step, a second-stage step and a third-stage step from bottom to top, the diameter of the first-stage step is larger than that of the second-stage step, and the diameter of the second-stage step is larger than that of the; the upper part of the bolt is inserted into a fixed support, the fixed support is arranged on a box body of the gearbox, a bolt groove coaxial with the upper part of the bolt is arranged inside the fixed support, a limit boss is arranged in the middle of the bolt groove, a reset spring is sleeved on a secondary step of the bolt, one end of the reset spring abuts against the end face of the primary step, and the other end of the reset spring abuts against the surface of the limit boss; the upper portion of fixing support installs the solenoid valve, the solenoid valve cover locate on the tertiary ladder of bolt.
Further, the gear is a driven gear.
Further, the gear is a driving gear with an input shaft.
Furthermore, the electromagnetic valve is connected with a motor contactor.
Furthermore, the rack is a rigid rack or a flexible rack.
Has the advantages that: the utility model discloses a reciprocating motion is done to solenoid valve actuation profile of tooth round pin, and when the power circular telegram, the solenoid valve has been got the electricity and has been done instantaneous actuation action, opens the bolt, and the gear can move, otherwise the motor loses the electricity, and the sucking disc release, reset spring promote the bolt round pin and sell the gear dead. The device can effectively prevent falling accidents caused by factors such as gliding, shaft breakage, shaft key shearing and the like. The motor or the speed reducer and other equipment can be replaced under the unsupported state.
Drawings
FIG. 1 is a schematic view of the internal structure of a rack and pinion, sprocket and chain locking device;
FIG. 2 is a schematic structural view of a fixing support and a plug portion;
FIG. 3 is a schematic view of the power-on and power-off structure of FIG. 1;
in the figure: 1. the device comprises a gear box, 2, a rack, 3, a pressing wheel, 4, a gear, 5, a bolt, 6, a first-level step, 7, a second-level step, 8, a third-level step, 9, a fixed support, 10, a limiting boss, 11, a reset spring, 12 and an electromagnetic valve.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in fig. 1-3, a gear rack, sprocket and chain locking device comprises a gear box 1, wherein a rack 2 is arranged in the middle of the gear box 1 in a penetrating manner, the rack 2 is a hard straight rack or a flexible rack, a plurality of pressing wheels 3 are arranged on the tooth back side of the rack 2, and the pressing wheels 3 are abutted against the surface of the tooth back; a gear 4 is arranged on the side of the tooth surface of the rack 2, and the gear 4 is a driven gear or a driving gear with an input shaft; the gear 4 is meshed with the rack 2, a bolt 5 is arranged above the gear 4, the lower end of the bolt 5 is opposite to the gear 4 and is in a similar tooth shape matched with the gear 4, the upper part of the bolt 5 is cylindrical in a three-stage step shape, the bolt is a first-stage step 6, a second-stage step 7 and a third-stage step 8 from bottom to top, the diameter of the first-stage step 6 is larger than that of the second-stage step 7, and the diameter of the second-stage step 7 is larger than that of the third-stage step 8; the upper part of the bolt 5 is inserted into a fixed support 9, the fixed support 9 is installed on a box body of the gear box 1, a bolt groove coaxial with the upper part of the bolt 5 is formed in the fixed support 9, a limiting boss 10 is arranged in the middle of the bolt groove, a return spring 11 is sleeved on a secondary step of the bolt 5, one end of the return spring 11 abuts against the end face of the primary step 6, and the other end of the return spring abuts against the surface of the limiting boss 10; the upper part of the fixed support is provided with an electromagnetic valve 12, and the electromagnetic valve 12 is sleeved on the third-stage ladder 8 of the bolt; the solenoid valve 12 is connected to a motor contactor.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A gear rack and chain wheel and chain locking device is characterized by comprising a gear box, wherein a rack is arranged in the middle of the gear box in a penetrating mode, a plurality of pressing wheels are arranged on the tooth back side of the rack, and the pressing wheels are abutted against the surface of the tooth back; a gear is arranged on the side of the tooth surface of the rack, the gear is meshed with the rack, a bolt is arranged above the gear, the lower end of the bolt is opposite to the gear and is in a similar tooth shape matched with the gear, the upper part of the bolt is cylindrical in a three-stage step shape, the bolt is a first-stage step, a second-stage step and a third-stage step from bottom to top, the diameter of the first-stage step is larger than that of the second-stage step, and the diameter of the second-stage step is larger than that of the; the upper part of the bolt is inserted into a fixed support, the fixed support is arranged on a box body of the gearbox, a bolt groove coaxial with the upper part of the bolt is arranged inside the fixed support, a limit boss is arranged in the middle of the bolt groove, a reset spring is sleeved on a secondary step of the bolt, one end of the reset spring abuts against the end face of the primary step, and the other end of the reset spring abuts against the surface of the limit boss; the upper portion of fixing support installs the solenoid valve, the solenoid valve cover locate on the tertiary ladder of bolt.
2. A rack and pinion, sprocket, chain locking device as claimed in claim 1 wherein said gear is a driven gear.
3. A rack and pinion, sprocket and chain lock as set forth in claim 1 wherein said gear is a drive gear with an input shaft.
4. A rack and pinion, sprocket and chain lock as set forth in claim 1 wherein said solenoid valve is connected to a motor contactor.
5. A rack and pinion, sprocket and chain lock as claimed in claim 1 wherein the rack is a rigid rack or a flexible rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020429023.5U CN212004036U (en) | 2020-03-30 | 2020-03-30 | Gear rack, chain wheel and chain locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020429023.5U CN212004036U (en) | 2020-03-30 | 2020-03-30 | Gear rack, chain wheel and chain locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212004036U true CN212004036U (en) | 2020-11-24 |
Family
ID=73421818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020429023.5U Active CN212004036U (en) | 2020-03-30 | 2020-03-30 | Gear rack, chain wheel and chain locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212004036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850559A (en) * | 2021-02-05 | 2021-05-28 | 广州市浩杰玩具有限公司 | Electromechanical device installs ladder for building engineering |
-
2020
- 2020-03-30 CN CN202020429023.5U patent/CN212004036U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850559A (en) * | 2021-02-05 | 2021-05-28 | 广州市浩杰玩具有限公司 | Electromechanical device installs ladder for building engineering |
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| GR01 | Patent grant |