CN215626421U - Speed-variable vehicle-mounted jack - Google Patents
Speed-variable vehicle-mounted jack Download PDFInfo
- Publication number
- CN215626421U CN215626421U CN202122448069.9U CN202122448069U CN215626421U CN 215626421 U CN215626421 U CN 215626421U CN 202122448069 U CN202122448069 U CN 202122448069U CN 215626421 U CN215626421 U CN 215626421U
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- Prior art keywords
- jack
- gear
- hinged
- support arm
- input
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- 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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- 230000009471 action Effects 0.000 description 6
- 208000006011 Stroke Diseases 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The utility model relates to a jack, in particular to a speed-variable vehicle-mounted jack. The device comprises a scissor jack (15), wherein the scissor jack (15) is fixedly connected with a gear box (14); the gearbox (14) comprises a gearbox body (9), an input shaft (17) and an output shaft (16) are arranged on the gearbox body (9), an input gear (13) is fixedly mounted on the input shaft (17), an output gear (12) is fixedly mounted on the output shaft (16), the input gear (13) is meshed with the output gear (12), and the number of teeth of the input gear (13) is not equal to that of the output gear (12); the gearbox body (9) is fixed on a connecting block (11) of the scissor jack (15), and the output shaft (16) is fixedly connected with a lead screw (2) of the scissor jack (15). The jack has multiple functions of lifting, supporting, speed changing and the like, can improve the speed of the empty load stroke of the jack, and saves time of a user.
Description
Technical Field
The utility model relates to a jack, in particular to a speed-variable vehicle-mounted jack.
Background
The vehicle-mounted jack is placed in a tool box of the automobile and used for jacking the automobile body when the spare tire is replaced. The lifting speed of the lifting jack can be increased in the idle load stage of the lifting jack, the vehicle-mounted lifting jack comprises a pneumatic lifting jack, an electric lifting jack, a hydraulic lifting jack and a mechanical lifting jack, the lifting jack with the speed adjusting function is generally common to the hydraulic lifting jack and the electric lifting jack, but the hydraulic lifting jack and the electric lifting jack are higher in cost compared with the mechanical lifting jack.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a variable-speed vehicle-mounted jack which has multiple functions of lifting, supporting, speed changing and the like, can improve the speed of the idle load stroke of the jack and save the time of a user.
The technical scheme adopted by the utility model is as follows:
a variable speed vehicle-mounted jack comprises a scissor jack (15), wherein the scissor jack (15) is fixedly connected with a gear box (14); the gearbox (14) comprises a gearbox body (9), an input shaft (17) and an output shaft (16) are arranged on the gearbox body (9), an input gear (13) is fixedly mounted on the input shaft (17), an output gear (12) is fixedly mounted on the output shaft (16), the input gear (13) is meshed with the output gear (12), and the number of teeth of the input gear (13) is not equal to that of the output gear (12); the gearbox body (9) is fixed on a connecting block (11) of the scissor jack (15), and the output shaft (16) is fixedly connected with a lead screw (2) of the scissor jack (15).
Further, the number of teeth of the input gear (13) is larger than that of the output gear (12).
Furthermore, the scissor jack (15) comprises a left lower support arm (5), a right lower support arm (6), a left upper support arm (7) and a right upper support arm (8), one end of the left lower support arm (5) is hinged with the base (1), and the other end of the left lower support arm (5) is hinged with the nut (10); one end of the right lower support arm (6) is hinged with the base (1), and the other end of the right lower support arm (6) is hinged with the connecting block (11); one end of the left upper support arm (7) is hinged with the nut (10), and the other end of the left upper support arm (7) is hinged with the top seat (3); one end of the right upper support arm (8) is hinged with the connecting block (11), and the other end of the right upper support arm (8) is hinged with the top seat (3); the middle part of the screw nut (10) is provided with a threaded hole which is in threaded fit with the screw rod (2), and the middle part of the connecting block (11) is provided with a through hole which is matched with the screw rod (2).
Further, a saddle (4) is arranged at the top of the top seat (3).
Furthermore, a hexagonal screwing head is arranged at the end part of the input shaft (17), and a hexagonal screwing head is arranged at the end part of the output shaft (16).
The technical scheme provided by the utility model has the beneficial effects that:
1. the speed of the empty load stroke of the jack can be increased, and the time of a user is saved;
2. compared with a jack debugged by a motor, the jack has the advantages of simple structure, high reliability and low cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of a variable speed vehicular jack of the present invention;
FIG. 2 is a cross-sectional view of a variable speed vehicular jack according to the present invention taken along line c-c;
fig. 3 is a schematic structural diagram of a variable speed vehicle-mounted jack according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-3, a variable speed vehicle-mounted jack comprises a scissor jack 15, wherein the scissor jack 15 is fixedly connected with a gear box 14; the gearbox 14 comprises a gearbox body 9, an input shaft 17 and an output shaft 16 are arranged on the gearbox body 9, an input gear 13 is fixedly mounted on the input shaft 17, an output gear 12 is fixedly mounted on the output shaft 16, the input gear 13 is meshed with the output gear 12, and the number of teeth of the input gear 13 is not equal to that of the output gear 12; the gear box body 9 is fixed on a connecting block 11 of the scissor jack 15, and the output shaft 16 is fixedly connected with the lead screw 2 of the scissor jack 15.
Further, the number of teeth of the input gear 13 is larger than that of the output gear 12.
Furthermore, the scissor jack 15 comprises a left lower support arm 5, a right lower support arm 6, a left upper support arm 7 and a right upper support arm 8, wherein one end of the left lower support arm 5 is hinged with the base 1, and the other end of the left lower support arm 5 is hinged with the screw nut 10; one end of the right lower support arm 6 is hinged with the base 1, and the other end of the right lower support arm 6 is hinged with the connecting block 11; one end of the left upper supporting arm 7 is hinged with a nut 10, and the other end of the left upper supporting arm 7 is hinged with the top seat 3; one end of the right upper support arm 8 is hinged with the connecting block 11, and the other end of the right upper support arm 8 is hinged with the top seat 3; the middle part of the screw nut 10 is provided with a threaded hole matched with the screw rod 2 in a threaded manner, and the middle part of the connecting block 11 is provided with a through hole matched with the screw rod 2.
Further, a saddle 4 is arranged on the top of the top seat 3.
Further, a hexagonal screwing head is arranged at the end of the input shaft 17, and a hexagonal screwing head is arranged at the end of the output shaft 16.
In the idle stroke stage when the jack is jacked, the hexagonal screwing head on the input shaft 17 is screwed to enable the input shaft 17 to rotate, the output shaft 16 rotates under the action of the input gear 13 and the output gear 12, and the rotating speed of the output shaft 16 is greater than that of the input shaft 17 because the number of teeth of the input gear 13 is greater than that of the output gear 12, and at the moment, the top seat 3 starts to rise rapidly under the action of the screw rod 2 and the nut 10; in the stage of a load stroke when the jack is jacked, a hexagonal screwing head on the output shaft 16 is screwed to rotate the output shaft 16, the input shaft 17 idles under the action of the input gear 13 and the output gear 12, and the jacking seat 3 is slowed down under the action of the screw rod 2 and the nut 10; in the lifting stage of the jack, the hexagonal screwing head on the input shaft 17 is screwed to rotate the input shaft 17, the output shaft 16 rotates under the action of the input gear 13 and the output gear 12, the rotating speed of the output shaft 16 is greater than that of the input shaft 17 because the number of teeth of the input gear 13 is greater than that of the output gear 12, and at the moment, the footstock 3 starts to rapidly descend under the action of the screw rod 2 and the nut 10.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A variable speed vehicle jack comprises a scissor jack (15), characterized in that the scissor jack (15) is fixedly connected with a gear box (14); the gearbox (14) comprises a gearbox body (9), an input shaft (17) and an output shaft (16) are arranged on the gearbox body (9), an input gear (13) is fixedly mounted on the input shaft (17), an output gear (12) is fixedly mounted on the output shaft (16), the input gear (13) is meshed with the output gear (12), and the number of teeth of the input gear (13) is not equal to that of the output gear (12); the gearbox body (9) is fixed on a connecting block (11) of the scissor jack (15), and the output shaft (16) is fixedly connected with a lead screw (2) of the scissor jack (15).
2. A variable-speed vehicular jack according to claim 1, wherein the number of teeth of the input gear (13) is greater than the number of teeth of the output gear (12).
3. The variable-speed vehicle jack of claim 1, wherein the scissor jack (15) comprises a left lower arm (5), a right lower arm (6), a left upper arm (7) and a right upper arm (8), one end of the left lower arm (5) is hinged with the base (1), and the other end of the left lower arm (5) is hinged with the screw nut (10); one end of the right lower support arm (6) is hinged with the base (1), and the other end of the right lower support arm (6) is hinged with the connecting block (11); one end of the left upper support arm (7) is hinged with the nut (10), and the other end of the left upper support arm (7) is hinged with the top seat (3); one end of the right upper support arm (8) is hinged with the connecting block (11), and the other end of the right upper support arm (8) is hinged with the top seat (3); the middle part of the screw nut (10) is provided with a threaded hole which is in threaded fit with the screw rod (2), and the middle part of the connecting block (11) is provided with a through hole which is matched with the screw rod (2).
4. A variable-speed vehicle jack according to claim 3, characterised in that a saddle (4) is provided on top of the top seat (3).
5. A variable-speed vehicle jack according to claim 1, in which the input shaft (17) is provided at its end with a hexagonal driving head and the output shaft (16) is provided at its end with a hexagonal driving head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122448069.9U CN215626421U (en) | 2021-10-12 | 2021-10-12 | Speed-variable vehicle-mounted jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122448069.9U CN215626421U (en) | 2021-10-12 | 2021-10-12 | Speed-variable vehicle-mounted jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215626421U true CN215626421U (en) | 2022-01-25 |
Family
ID=79934583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122448069.9U Expired - Fee Related CN215626421U (en) | 2021-10-12 | 2021-10-12 | Speed-variable vehicle-mounted jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215626421U (en) |
-
2021
- 2021-10-12 CN CN202122448069.9U patent/CN215626421U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |