CN209797359U - Novel opening structure of scissor jack - Google Patents
Novel opening structure of scissor jack Download PDFInfo
- Publication number
- CN209797359U CN209797359U CN201920512730.8U CN201920512730U CN209797359U CN 209797359 U CN209797359 U CN 209797359U CN 201920512730 U CN201920512730 U CN 201920512730U CN 209797359 U CN209797359 U CN 209797359U
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- China
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- bevel gear
- threaded rod
- wall
- shell
- scissor jack
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Abstract
The utility model discloses a novel opening structure of scissor jack, which comprises a base and two groups of crossbeams, the end part of a lower supporting arm is arranged inside a rocking seat through a fixed pin, one end of a second threaded rod penetrates through the inside of a rectangular mounting block and is provided with a first bevel gear, two sides of the second threaded rod, one end of the crossbeam is provided with a rotating shaft mounting plate through a screw and a nut, the top surface of the rotating shaft mounting plate is welded with a cylindrical pin, the top surface of the cylindrical pin is rotatably connected with a stepped shaft through a fixed pin, the outer wall of the stepped shaft is sleeved and fixed with a second bevel gear, the first bevel gear is meshed and connected with the second bevel gear, the end part of the stepped shaft extends to the outer wall of a shell and is welded with a square block, the utility model converts the rotary motion of a rocker into the swing motion of the rocker, the axes are fixed, the operation is simple, and the use is convenient.
Description
Technical Field
The utility model relates to a shear type jack technical field, concretely relates to shear type jack's novel structure of opening.
Background
The scissor jack is also called a bracket jack, is light and fast to use, and is a vehicle-mounted product in various domestic automobile factories. The device consists of an upper supporting rod and a lower supporting rod which are made of metal plates, and the working principles are different. The cross section of the upper supporting rod and the cross section of the lower supporting rod at the tooth part and the part near the tooth part are rectangular with one side opened, and metal plates at two sides of the opening are bent inwards. The teeth on the upper support rod and the lower support rod are made of metal plates with bent openings at two sides, and the tooth width is larger than the thickness of the metal plates.
At present, the maximum torque which can be realized by a novel opening structure of a scissor jack is limited by the height of a screw rod above the ground through the limitation of the length of a force arm of a wrench; secondly, because of the lead screw and the eccentric of rocker pivot, lead to when using the rocker rotation, the rotatory unstable of rocker easily rocks, increases the use degree of difficulty.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shear type jack's novel structure of opening for solve the novel structure of opening of shear type jack that mentions in the above-mentioned background art, arm of force length through the spanner receives the restriction of the terrain clearance of lead screw, and realizable maximum torque is limited. Secondly, because of the lead screw and the eccentric of rocker pivot, lead to when using the rocker rotation, the rotation of rocker is unstable easily rocks, increases the problem such as the degree of difficulty of using.
In order to achieve the above object, the utility model provides a following technical scheme: a novel opening structure of a scissor jack comprises a base and two groups of crossbeams, wherein a rocking seat is fixed on the top surface of the base through screws, rectangular installation blocks are fixed at two ends between the two groups of crossbeams through penetrating bolts and nuts, the inside of each rectangular installation block is rotatably connected with a first threaded rod through a bearing, a second threaded rod is welded at the end part of each first threaded rod, nuts are respectively screwed on the outer walls of the first threaded rod and the second threaded rod, sliding grooves are respectively formed in the two groups of crossbeams, the nuts are slidably connected inside the sliding grooves, the upper end and the lower end of each nut are respectively hinged with an upper supporting arm and a lower supporting arm, the end part of each upper supporting arm is rotatably connected with a saddle through a fixed pin, the end part of each lower supporting arm is installed inside the rocking seat through a fixed pin, and a first bevel gear is installed at one end of each second threaded rod penetrating, both sides the pivot mounting panel is installed through screw and nut to the one end of crossbeam, the top surface welding of pivot mounting panel has the cylindric lock, the top surface of cylindric lock rotates through the fixed pin and is connected with the step shaft, cup joint on the outer wall of step shaft and be fixed with second bevel gear, first bevel gear is connected with second bevel gear meshing, one side that the outer wall of step shaft is located second bevel gear runs through there is the shell, the internally mounted of shell has ratchet, the outer wall welding that the tip of step shaft extended to the shell has square.
Preferably, ratchet mechanism, including the ratchet, the ratchet is installed on the outer wall of step shaft, one side of ratchet is located the welding on the inner wall of shell and has compression spring, compression spring's tip welding has the pawl, the tip of pawl passes through the connecting pin and rotates the inside of connecting at the shell, be located between the pawl and install the cam on being located the inside of shell, the knob is installed to the tip of cam, the tip of knob extends to the outside of shell.
Preferably, one side of the second bevel gear is located on the outer wall of the stepped shaft and sleeved with a gear pad, and one side of the gear pad is sleeved with a clamp spring.
preferably, the screw mechanisms of the first threaded rod and the second threaded rod are arranged oppositely.
Preferably, the top surface of the saddle is adhered with a rubber pad through glue.
Preferably, the outer wall of the square block is sleeved with a telescopic swing rod.
Compared with the prior art, the beneficial effects of the utility model are that:
1. The utility model has the advantages that the structure of the bevel gear set is meshed and rotated, so that the rotary motion of the rocker is converted into the swing motion of the swing rod, the axle center is fixed while the moment is increased, the operation is simple, and the use is convenient;
2. The utility model is sleeved on the outer wall of the square block through the telescopic swing rod, then the telescopic swing rod is repeatedly swung by hands, so that the square block can drive the shell to rotate, the end part of the shell is contacted with the rotating shaft mounting plate to stop rotating, then the second bevel gear is driven to rotate under the action of the stepped shaft, at the moment, the first bevel gear is driven to rotate through the second bevel gear, at the moment, the second threaded rod positioned in the first bevel gear can drive the first threaded rod to simultaneously rotate, so that the nuts positioned on the outer walls of the first threaded rod and the second threaded rod can simultaneously and relatively move, thereby the lifting is carried out under the action of the upper supporting arm and the lower supporting arm, when the use is finished, the second bevel gear and the stepped shaft are rotated for 180 degrees, at the moment, the jack can be lowered by repeatedly swinging through the telescopic swing rod again, the use is more convenient like this, and moment can not receive the restriction of external factor moreover, more laborsaving, the stability of a basic.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is an exploded view of the stepped shaft and the second bevel gear of the present invention;
Fig. 4 is a schematic view of the internal structure of the housing of the present invention;
fig. 5 is a right side view of the utility model with the telescopic swing link removed.
In the figure: 1. a base; 2. a cross beam; 3. shaking the seat; 4. a rectangular mounting block; 5. a first threaded rod; 6. a second threaded rod; 7. a chute; 8. a nut; 9. an upper support arm; 10. a lower support arm; 11. a saddle; 12. a rotating shaft mounting plate; 13. a cylindrical pin; 14. a stepped shaft; 15. a first bevel gear; 16. a second bevel gear; 17. a housing; 18. a ratchet mechanism; 1801. a ratchet wheel; 1802. a compression spring; 1803. a pawl; 1804. a cam; 1805. a knob; 19. a square block; 20. a gear pad; 21. a clamp spring; 22. a telescopic swing rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a technical scheme as shown in figures 1-5, a novel opening structure of a scissor jack, which comprises a base 1 and two groups of crossbeams 2, wherein the top surface of the base 1 is fixed with a rocking base 3 through screws, two ends between the two groups of crossbeams 2 are fixed with a rectangular mounting block 4 through penetrating bolts and nuts, the inside of the rectangular mounting block 4 is rotatably connected with a first threaded rod 5 through a bearing, the end part of the first threaded rod 5 is welded with a second threaded rod 6, the outer walls of the first threaded rod 5 and the second threaded rod 6 are both screwed with nuts 8, the inside of the two groups of crossbeams 2 is provided with a chute 7, the nuts 8 are slidably connected inside the chute 7, the upper end and the lower end of the nuts 8 are respectively hinged with an upper supporting arm 9 and a lower supporting arm 10, the end part of the upper supporting arm 9 is rotatably connected with a saddle 11 through a fixed pin, the end part of the lower supporting, one end of the second threaded rod 6 penetrates through the rectangular mounting block 4 and is internally provided with a first bevel gear 15, one ends of the crossbeams 2 at two sides are provided with a rotating shaft mounting plate 12 through screws and nuts, the top surface of the rotating shaft mounting plate 12 is welded with a cylindrical pin 13, the top surface of the cylindrical pin 13 is rotatably connected with a stepped shaft 14 through a fixing pin, the outer wall of the stepped shaft 14 is sleeved and fixed with a second bevel gear 16, the first bevel gear 15 is meshed and connected with the second bevel gear 16, one side of the outer wall of the stepped shaft 14, which is positioned at the second bevel gear 16, is penetrated with a shell 17, the inside of the shell 17 is provided with a ratchet mechanism 18, the end part of the stepped shaft 14, which extends to the outer wall of the shell 17, is, the length that can be convenient for increase moment like this goes up and down, makes the operation light more, can not receive the influence of outer wall factor moreover.
Specifically, ratchet 18, including ratchet 1801, ratchet 1801 installs on the outer wall of step shaft 14, one side of ratchet 1801 is located the welding on the inner wall of shell 17 and has compression spring 1802, the tip welding of compression spring 1802 has pawl 1803, the tip of pawl 1803 passes through the connecting pin and rotates the inside of connecting in shell 17, be located between the pawl 1803 and be located the inside of shell 17 and install cam 1804 on, knob 1805 is installed to the tip of cam 1804, the tip of knob 1805 extends to the outside of shell 17, can carry on spacingly to ratchet 1801 like this, prevents that flexible pendulum rod 22 reverse rotation from leading to the lowering of scissor jack, influence the operation.
Specifically, one side of the second bevel gear 16 is located on the outer wall of the stepped shaft 14 and sleeved with a gear pad 20, one side of the gear pad 20 is sleeved with a clamp spring 21, so that the disassembly is convenient, and meanwhile, the second bevel gear 16 is protected.
Specifically, the screw mechanisms of the first threaded rod 5 and the second threaded rod 6 are arranged oppositely, so that two groups of nuts 8 can move oppositely or oppositely at the same time, and the lifting or the lowering can be facilitated.
Specifically, the rubber pad is pasted through glue to the top surface of saddle 11, prevents that the top surface of saddle 11 from carrying out direct contact with the outer wall of car, causes the damage to the outer wall of car.
Specifically, the outer wall of the square block 19 is sleeved with a telescopic swing rod 22, so that the lifting is changed from the original rotation into the back-and-forth swinging motion, and the torque length is increased conveniently and more labor is saved.
The working principle is as follows: when the device is used, the telescopic swing rod 22 is sleeved on the outer wall of the square block 19, then the telescopic swing rod 22 is repeatedly swung by hands, so that the square block 19 drives the shell 17 to rotate, at the moment, the end part of the shell 17 is in surface contact with the rotating shaft mounting plate 12 to stop rotating, then the second bevel gear 16 is driven to rotate under the action of the stepped shaft 14, at the moment, the first bevel gear 15 is driven to rotate by the second bevel gear 16, the second threaded rod 6 positioned inside the first bevel gear 15 drives the first threaded rod 5 to simultaneously rotate, so that the nuts 8 positioned on the outer walls of the first threaded rod 5 and the second threaded rod 6 simultaneously and relatively move, thereby being lifted under the action of the upper supporting arm 9 and the lower supporting arm 10, and when the device is used, the second bevel gear 16 and the stepped shaft 14 are turned over for 180 degrees along the cylindrical pin 13, so that the second bevel gear 16 is just meshed with the first bevel, at this time, the scissor jack can be lowered by repeatedly swinging the telescopic swing rod 22 again, the scissor jack is lifted more stably through the engagement of the first bevel gear 15 and the second bevel gear 16, and meanwhile, the torque is not limited by external factors, so that the scissor jack is more convenient to use and saves more labor.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a novel structure of opening of scissor jack, includes base (1) and two sets of crossbeam (2), its characterized in that: the top surface of the base (1) is fixed with a rocking base (3) through screws, two ends between two groups of the cross beams (2) are fixed with rectangular mounting blocks (4) through penetrating bolts and nuts, the inside of each rectangular mounting block (4) is connected with a first threaded rod (5) through a bearing in a rotating manner, the end part of each first threaded rod (5) is welded with a second threaded rod (6), the outer walls of the first threaded rods (5) and the second threaded rods (6) are all screwed with nuts (8), the inside of the two groups of the cross beams (2) is provided with a sliding chute (7), the nuts (8) are connected inside the sliding chutes (7) in a sliding manner, the upper end and the lower end of each nut (8) are respectively hinged with an upper supporting arm (9) and a lower supporting arm (10), the end part of each upper supporting arm (9) is connected with a saddle (11) through a fixing pin in a rotating manner, the end part of each lower supporting arm (10) is installed, one end of the second threaded rod (6) penetrates through the rectangular mounting block (4) and is internally provided with a first bevel gear (15), one end of the cross beam (2) at two sides is provided with a rotating shaft mounting plate (12) through a screw and a nut, the top surface of the rotating shaft mounting plate (12) is welded with a cylindrical pin (13), the top surface of the cylindrical pin (13) is rotatably connected with a stepped shaft (14) through a fixed pin, a second bevel gear (16) is sleeved and fixed on the outer wall of the stepped shaft (14), the first bevel gear (15) is meshed with the second bevel gear (16), a shell (17) penetrates through the outer wall of the stepped shaft (14) at one side of the second bevel gear (16), the inside mounting of shell (17) has ratchet (18), the tip of step shaft (14) extends to the outer wall welding of shell (17) has square piece (19).
2. the novel opening mechanism of a scissor jack according to claim 1, wherein: ratchet (18), including ratchet (1801), ratchet (1801) is installed on the outer wall of step shaft (14), the welding has compression spring (1802) on the inner wall that one side of ratchet (1801) is located shell (17), the end welding of compression spring (1802) has pawl (1803), the tip of pawl (1803) is passed through the connecting pin and is rotated the inside of connecting in shell (17), it installs cam (1804) on the inside of shell (17) to be located between pawl (1803), knob (1805) is installed to the tip of cam (1804), the tip of knob (1805) extends to the outside of shell (17).
3. The novel opening mechanism of a scissor jack according to claim 1, wherein: one side of the second bevel gear (16) is located on the outer wall of the stepped shaft (14) and sleeved with a gear pad (20), and one side of the gear pad (20) is sleeved with a clamp spring (21).
4. The novel opening mechanism of a scissor jack according to claim 1, wherein: the screw mechanisms of the first threaded rod (5) and the second threaded rod (6) are arranged oppositely.
5. The novel opening mechanism of a scissor jack according to claim 1, wherein: the top surface of the saddle (11) is adhered with a rubber pad through glue.
6. The novel opening mechanism of a scissor jack according to claim 1, wherein: the outer wall of the square block (19) is sleeved with a telescopic swing rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512730.8U CN209797359U (en) | 2019-04-16 | 2019-04-16 | Novel opening structure of scissor jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512730.8U CN209797359U (en) | 2019-04-16 | 2019-04-16 | Novel opening structure of scissor jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209797359U true CN209797359U (en) | 2019-12-17 |
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ID=68829542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920512730.8U Active CN209797359U (en) | 2019-04-16 | 2019-04-16 | Novel opening structure of scissor jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209797359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573556A (en) * | 2020-05-19 | 2020-08-25 | 郭细婷 | Lifting device with deadlock structure |
-
2019
- 2019-04-16 CN CN201920512730.8U patent/CN209797359U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573556A (en) * | 2020-05-19 | 2020-08-25 | 郭细婷 | Lifting device with deadlock structure |
| CN111573556B (en) * | 2020-05-19 | 2021-07-09 | 德清创赢机械科技有限公司 | Lifting device with deadlock structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210601 Granted publication date: 20191217 |