CN103121648A - Automobile lifting jack - Google Patents
Automobile lifting jack Download PDFInfo
- Publication number
- CN103121648A CN103121648A CN2013100704217A CN201310070421A CN103121648A CN 103121648 A CN103121648 A CN 103121648A CN 2013100704217 A CN2013100704217 A CN 2013100704217A CN 201310070421 A CN201310070421 A CN 201310070421A CN 103121648 A CN103121648 A CN 103121648A
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- screw rod
- screw
- hold
- down arm
- jack
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Abstract
The invention discloses an automobile lifting jack comprising a first supporting arm, a second supporting arm, a third supporting arm and a fourth supporting arm, wherein the first supporting arm and the third supporting arm are movably connected by a first movable connection part, the second supporting arm and the fourth supporting arm are movably connected by a second movable connection part and the first movable connection part and the second movable connection part are both penetrated by a screw. The screw comprises a first screw, a second screw and a third screw. A connection bar is arranged at one end, connected with the second screw, of the first screw. A grove-II and a groove-III which are matched with the connection bar are formed in one end, connected with the first screw, of the second screw. One end, connected with the third screw, of the second screw is a protruded head-II. A groove-III matched with the protruded head-II of the second screw is formed in one end, connected with the second screw, of the third screw. An elastic component-III is arranged in the groove-III. The second screw is detachable. After the second screw is detached, the third screw can be screwed into the lifting jack, so that occupied space of the screw can be reduced, packaging box materials can be reduced and cost can be reduced.
Description
Technical field
The invention belongs to car jack.
Background technology
Jack is that a kind of the top with rigidity lifted part as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw.Can be divided into 3 kinds of rack-jack, lifting screw and hydraulic jacks by architectural feature.Jack is the simplest weight-lifting equipment of a kind of lifting highly little (less than 1m).It has two kinds of mechanical type and fluid pressure types.Mechanical jack has again rack-and-pinion and spiral two kinds, and because hoisting capacity is little, the operation effort generally only is used for flight-line maintenance work, and is inapplicable in repairing the bridge process.The fluid pressure type jack structure is compact, and stable working has self-locking action, therefore use extensively.Its shortcoming is that lifting is highly limited, and lifting velocity is slow.The kind of car jack can be divided into four kinds of rack-jack, lifting screw and hydraulic jack and Inflated jacks.In car jack commonly used, a lot of jacks are after accepting at present, and the screw rod in jack still has quite a few to stay outside jack.Grown much with regard to the entire length that makes jack like this, for wiring up, just needed the longer of packet design, materials demand is more, and cost is also just relatively high.
Summary of the invention
The present invention is directed to the prior art deficiency, provide the detachable combination of a kind of screw rod can reduce the jack that packing box length is saved cost.
in order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: car jack, comprise the first hold-down arm, the second hold-down arm, the 3rd hold-down arm, the 4th hold-down arm, described the first hold-down arm and the 3rd hold-down arm are flexibly connected by the first active connection part, described the second hold-down arm and the 4th hold-down arm are flexibly connected by the second active connection part, the first active connection part and the second active connection part are all passed by a screw rod, described the first hold-down arm and the second hold-down arm support and connection place are provided with base, described the 3rd hold-down arm and the 4th hold-down arm junction are provided with pallet, it is characterized in that: described screw rod comprises the first screw rod, the second screw rod and the 3rd screw rod, described the first screw rod connects the second screw rod one end and is provided with pipe link, described the second screw rod connects the first screw rod one end and offers No. two No. three grooves that coordinate described pipe link, it is No. two convex heads that described the second screw rod connects the 3rd screw rod end, described the 3rd screw rod connects the second screw rod end and offers No. three grooves that coordinate No. two convex heads of the second screw rod, be provided with elastic parts No. three in described No. three grooves.
In technique scheme, No. two convex heads of described the second screw rod are square, and No. three grooves of described the 3rd screw rod are square, and described No. two convex heads and described No. three grooves can be combined closely, facilitate bolt rotary, make up the wearing and tearing that can reduce between the second screw rod and the 3rd screw rod with respect to difformity.
In technique scheme, described No. three elastic partss are spring, and the spring cost is low, good springiness.
In technique scheme, described spring maximum compressibility is 24 percent of free height, and brute spring prevents that in use procedure, the second screw rod drops affects result of use.
The present invention compared with prior art has following beneficial effect: the present invention is directed to the prior art deficiency, a kind of screw rod detouchable car jack is provided.After the second screw rod disassembles, the 3rd screw rod is rotated in jack, reduced the length that screw rod stays outside jack, reduced the length of the packing box of packing jack, economical with materials has reduced packing cost.
Description of drawings
Fig. 1 is embodiment 1, embodiment 2, embodiment 3 schematic perspective views.
Schematic diagram when Fig. 2 is separating of the first screw rod in embodiment 1, the second screw rod and the 3rd screw rod.
Schematic diagram when Fig. 3 is separating of the first screw rod in embodiment 2, the second screw rod and the 3rd screw rod.
Fig. 4 is No. two groove ends enlarged drawings of the second screw rod in embodiment 2.
Schematic diagram when Fig. 5 is separating of the first screw rod in embodiment 3, the second screw rod and the 3rd screw rod.
Schematic diagram when Fig. 6 is separating of the first screw rod in embodiment 3, the 4th screw rod and the 3rd screw rod.
Fig. 7 is A-A schematic cross-section in Fig. 6.
Fig. 8 is B-B schematic cross-section in Fig. 6.
Fig. 9 is embodiment 4 schematic perspective views.
Schematic diagram when Figure 10 is the connection of the first screw rod in embodiment 4, the second screw rod and the 3rd screw rod.
The specific embodiment
below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail: embodiment 1: referring to Fig. 1 and Fig. 2, car jack, comprise the first hold-down arm 1, the second hold-down arm 2, the 3rd hold-down arm 3, the 4th hold-down arm 4, described the first hold-down arm 1 and the 3rd hold-down arm 3 are flexibly connected by the first active connection part 17, described the second hold-down arm 2 and the 4th hold-down arm 4 are flexibly connected by the second active connection part 18, the first active connection part 17 and the second active connection part 18 are all passed by a screw rod 7, described screw rod 7 comprises the first screw rod 8, the second screw rod 9 and the 3rd screw rod 10, described the first screw rod 8 is square screw rod, the first screw rod 8 is controlled by a motor 15 and is rotated, the end that described the second screw rod 9 connects the first screw rod 8 offers the square opening 11 that coordinates the first screw rod 8, the second screw rod 9 is enclosed within the first screw rod 8 outsides, and the second screw rod 9 and the first screw rod 8 closely cooperate, the first screw rod 8 rotates the rotation that drives the second screw rod 9.
It is convex 12 that described the second screw rod 9 connects the 3rd screw rod 10 ends, the end that described the 3rd screw rod 10 connects the second screw rods 9 offers the groove 13 that coordinates the second screw rod 9 convexs 12, the groove 13 of the 3rd screw rod 10 is enclosed within outside the convex 12 of the second screw rod 9, and the 3rd screw rod 10 and the second screw rod 9 closely cooperate, drive the rotation of the 3rd screw rod 10 after the second screw rod 9 rotates, be provided with elastic parts 14 in described groove 13.Elastic parts 14 is springs, and the spring cost is low, good springiness, and high-intensity spring can prevent that in use procedure, the second screw rod 9 drops and affects normal use.The 3rd screw rod 10 is through on the second active connection part 18.
Described the first hold-down arm 1 and the second hold-down arm 2 support and connection place are provided with base 5, and base 5 is used for support jack, and described the 3rd hold-down arm 3 and the 4th hold-down arm 4 junctions are provided with pallet 6, and pallet 6 is used for holding need to be by the object of jack-up.Said motor 15 connects a remote controller, and remote controller can be controlled rising and the decline of jack.
During use, convex 12 groove 13 place that first insert the 3rd screw rod 10 with the second screw rod 9, firmly head into toward in, the stressed inside contraction of elastic parts 14, take advantage of a situation the second screw rod 9 is inserted in the first screw rod 8, loose one's grip, elastic parts 14 in the situation that do not stress is upheld, withstand the second screw rod 9, the second screw rod 9 can't separately be dropped from the first screw rod 8.
Start remote controller, jack is risen, the jack-up object is completed the operation that need to carry out.After EO, descending jack uses a teleswitch, after jack descends fully, the second screw rod 9 is exerted all one's strength toward the 3rd screw rod 10 directions, the stressed contraction of elastic parts 14, this moment, the second screw rod 9 left the first screw rod 8, took out the second screw rod 9, manually the 3rd screw rod 10 is rotated in jack, namely enters toward the first screw rod 8 direction rotations.Jack and the second screw rod 9 are put into packing box and are preserved the most at last.
Embodiment 2: compare with embodiment 1, difference is, the screw-rod structure difference of described jack, and all the other are all identical.
referring to Fig. 1, Fig. 3 and Fig. 4, car jack, described the first screw rod 8 connects the second screw rod 9 one ends and is provided with pipe link 119, described pipe link 119 is welded on described the first screw rod 8, the first screw rod 8 is controlled by a motor 15 and is rotated, described the second screw rod 9 connects the first screw rod 8 one ends and offers No. two grooves 120 that coordinate described pipe link 119, No. two groove 120 can hold described pipe link 119, after pipe link 119 enters No. two grooves 120, can be that pipe link 119 is contained in No. two grooves 120 fully, the two ends of pipe link 119 are exposed at outside No. two grooves 120, do not affect result of use.The rotation of the first screw rod 8 drives the rotation of the second screw rod 9.
It is No. two convexs 112 that described the second screw rod 9 connects the 3rd screw rod 10 ends, described the 3rd screw rod 10 connects the second screw rod 9 ends and offers No. three grooves 113 that coordinate 9 No. two convexs of the second screw rod 112, No. three grooves 113 of the 3rd screw rod 10 are enclosed within outside No. two convexs 112 of the second screw rod 9, and the 3rd screw rod 10 and the second screw rod 9 closely cooperate, drive the rotation of the 3rd screw rod 10 after the second screw rod 9 rotates, be provided with elastic parts 114 No. three in described No. three grooves 113.No. three elastic parts 114 is springs, and the spring cost is low, good springiness, and high-intensity spring can prevent that in use procedure, the second screw rod 9 drops and affects normal use.The 3rd screw rod 10 is through on the second active connection part 18.
Described the first hold-down arm 1 and the second hold-down arm 2 support and connection place are provided with base 5, and base 5 is used for support jack, and described the 3rd hold-down arm 3 and the 4th hold-down arm 4 junctions are provided with pallet 6, and pallet 6 is used for holding need to be by the object of jack-up.Said motor 15 connects a remote controller, and remote controller can be controlled rising and the decline of jack.
During use, No. two convexs of the second screw rod 9 112 are first inserted No. three groove 113 places of the 3rd screw rod 10, firmly head into toward in, No. three stressed inside contractions of elastic parts 114 are taken advantage of a situation No. two No. three grooves 120 of the second screw rod 9 are aimed at the pipe link 119 of the first screw rod 8, and make pipe link 119 be positioned at groove 120 No. two, loose one's grip, No. three elastic partss 114 in the situation that do not stress are upheld, and withstand the second screw rod 9, and the second screw rod 9 can't separately be dropped from the first screw rod 8.
Start remote controller, jack is risen, the jack-up object is completed the operation that need to carry out.After EO, descending jack uses a teleswitch, after jack descends fully, the second screw rod 9 is exerted all one's strength toward the 3rd screw rod 10 directions, No. three stressed contractions of elastic parts 114, this moment, the second screw rod 9 left the first screw rod 8, took out the second screw rod 9, manually the 3rd screw rod 10 is rotated in jack, namely enters toward the first screw rod 8 direction rotations.Jack and the second screw rod 9 are put into packing box and are preserved the most at last.
Embodiment 3: compare with embodiment 1, difference is, the screw-rod structure difference of described jack, and all the other are all identical.
Referring to Fig. 1, Fig. 5 ~ Fig. 8, car jack, above-mentioned screw rod 7 comprises the first screw rod 8, the second screw rod 9 and the 3rd screw rod 10, described the first screw rod 8 is square screw rod, and described the second screw rod 9 connects the first screw rod 8 ends and offers 211, No. three square openings 211 of No. three square openings that coordinate the first screw rod 8 and wrap in the first screw rod 8 outsides, combine closely mutually, the first screw rod 8 drives the second screw rod 9 and rotates.It is No. three convexs 212 that described the second screw rod 9 connects the 3rd screw rod 10 ends, described the 3rd screw rod 10 connects the second screw rod 9 ends and offers No. five grooves 213 that coordinate 9 No. three convexs of the second screw rod 212, No. five grooves 213 wrap in outside No. three convexs 212, and combine closely mutually.
Be provided with 214, No. four elastic partss 214 of No. four elastic partss in above-mentioned No. five grooves 213 and be preferably spring, the spring cost is low, good springiness, and brute spring is for the effect that can play enthusiasm service life of device.Described No. five grooves 213 are offered to No. four elastic partss 214 and are extended to the 3rd screw rod 10 other ends around No. four elastic partss 214, simply, the 3rd inner No. five grooves 213 of screw rod 10 are annular arrangement, No. five grooves of annular arrangement 213 inside are solid, and described No. four elastic partss 214 are arranged on solid position.Be hollow between annulus inner circle and cylindrical.
In order to make past the first screw rod 8 contractions faster of the 3rd screw rod 10 and to connect the first screw rod 8, be provided with cylinder the 4th screw rod 219 that can connect the first screw rod 8 and the 3rd screw rod 10, described the 4th screw rod 219 connects the first screw rod 8 ends and offers No. two square openings 221 that coordinate the first screw rod 8, No. two square opening 221 is the same with No. three square openings 211 sizes of the second screw rod 9, first screw rod 8 of combining closely.Described the 4th screw rod 219 connects the 3rd screw rod 10 ends and offers No. four grooves 220 that coordinate No. five grooves 213, simply, the 4th screw rod 219 is cylinder type hollow near the 3rd screw rod 10 1 end inside, but the cylinder type hollow position does not communicate with No. two square openings 221.The 4th screw rod 219 can enter by No. five grooves 213 of the 3rd screw rod 10, and enters into the annulus part, deeply embeds the 3rd screw rod 10.Outside described the 4th screw rod 219, screw thread is arranged, described No. five groove 213 inwalls are provided with screw thread, and namely annulus cylindrical wall or annulus inner round wall are provided with screw thread, also can both be provided with screw thread.The screw thread of the 4th screw rod 219 can adapt with the screw thread of 10 No. five grooves 213 of the 3rd screw rod, and the rotation of the 4th screw rod 219 makes the 3rd screw rod 10 close toward the 4th screw rod 219 directions to the effect of 10 No. five groove 213 screw threads of the 3rd screw rod.
Described the first hold-down arm 1 and the second hold-down arm 2 support and connection place are provided with base 5, and described the 3rd hold-down arm 3 and the 4th hold-down arm 4 junctions are provided with pallet 6.
during use, starting switch, make jack increase, after complete operation, descending jack, then with hand, the second screw rod 9 is exerted all one's strength toward the 3rd screw rod 10 directions, the second screw rod 9 compresses No. four elastic partss 214, at this moment, the second screw rod 9 breaks away from the first screw rod 8, take out the second screw rod 9, in order to make past the first screw rod 8 contractions faster of the 3rd screw rod 10 and to connect the first screw rod 8, be provided with the 4th screw rod 219, the 4th screw rod 219 is rotated into toward 10 No. five grooves 213 of the 3rd screw rod, then the 4th screw rod 219 is combined with the first screw rod 8, open switch and rotate the first screw rod 8, driving the 4th screw rod 219 rotates, after the threaded function of the screw thread of the 4th screw rod 219 and 10 No. five grooves 213 of the 3rd screw rod, the 3rd screw rod 10 rotates toward the 4th screw rod 219 directions, the 4th screw rod 219 a little enter into the 3rd screw rod 10 inside, final the first screw rod 8, the 4th screw rod 219 and the 3rd screw rod 10 mutually combine, closing switch.Shortened screw rod 7 length that are retained in the outside this moment, reduced screw rod 7 and take up room, reduced the packing box material, reduced costs.
Use the 4th screw rod 219, after the 3rd screw rod 10 shrinks, the second active connection part 18 is also simultaneously toward interior movement, height had at this time risen jack before starting jack, at jack and when needing that between the object of jack-up, gap ratio is larger, relatively slow by the original mode jack that little by little rises, such method can improve the ascending velocity of jack.
Embodiment 4: compare with embodiment 1, difference is, described jack is hand jack, and the screw-rod structure of jack is different, and all the other are all identical.
referring to Fig. 9 and Figure 10, car jack, the coupling end that is connected with the second screw rod 9 in above-mentioned the first screw rod 8 is a hollow end 315, this end of the first screw rod 8 inside is emptied, described hollow end 315 inwalls are provided with elastic parts 321 No. one, No. one elastic parts 321 is preferably spring, cost is low, elastic effect is good, a plurality of elastic partss 321 are set on inwall, a described elastic parts 321 connects some connecting straps 319, connecting strap 319 at least two of settings are best, a described connecting strap 319 is echelon form, the outer end of a described connecting strap 319 is the inclined-plane, outward opening is that convenient the second screw rod 9 in inclined-plane enters, inner contact surface is the plane, slip after conveniently entering, and the plane is fixing more effective than fixing of male and fomale(M﹠F).the coupling end that is connected with the second screw rod 9 in described the 3rd screw rod 10 is No. two hollow end 316, this end of the 3rd screw rod 10 inside is emptied, described No. two hollow end 316 inwalls are provided with elastic parts 322 No. two, No. two elastic parts 322 is preferably spring, cost is low, elastic effect is good, a plurality of No. two elastic partss 322 are set on inwall, described No. two elastic partss 322 connect some No. two connecting straps 320, No. two connecting strap 320 at least two of settings are best, described No. two connecting straps 320 are echelon form, it is the inclined-plane that described No. two connecting strap 320 outward openings namely connect the second screw rod 9 ends, outward opening is that convenient the second screw rod 9 in inclined-plane enters, inner contact surface is the plane, slip after conveniently entering, and the plane is fixing more effective than fixing of male and fomale(M﹠F).
During use, the second screw rod 9 one ends are connected on the first screw rod 8, the other end is connected on the 3rd screw rod 10, because be over-surplus fit structure, add the effect of flexible assembly, after connecting, when rotating the first screw rod 8, can drive the rotation of the second screw rod 9 and the 3rd screw rod 10, not affect the use of jack integral body.Be provided with through hole 314 on the first screw rod 8, rocking bar 313 is put into through hole 314, rotating rocker 313, drive the rotation of the first screw rod 8, drive simultaneously the rotation of the second screw rod 9 and the 3rd screw rod 10, the rotation of screw rod acts on the first hold-down arm 1, the second hold-down arm 2, the 3rd hold-down arm 3, the 4th hold-down arm 4 by the first active connection part 17 and the second active connection part 18, and each hold-down arm is along screw rod 7 to internal contraction, pallet 6 upwards rises, thereby holds up object.
After use finishing, counter-rotation rocking bar 313 descends jack, the second screw rod 9 is taken out from two interference fit junctions, and with the 3rd screw rod 10 rotation indentation jacks, then jack is put back to packing box preserve and get final product.
Claims (4)
1. car jack, comprise the first hold-down arm (1), the second hold-down arm (2), the 3rd hold-down arm (3), the 4th hold-down arm (4), described the first hold-down arm (1) is flexibly connected by the first active connection part (17) with the 3rd hold-down arm (3), described the second hold-down arm (2) is flexibly connected by the second active connection part (18) with the 4th hold-down arm (4), the first active connection part (17) is all passed by a screw rod (7) with the second active connection part (18), described the first hold-down arm (1) is provided with base (5) with the second hold-down arm (2) support and connection place, described the 3rd hold-down arm (3) is provided with pallet (6) with the 4th hold-down arm (4) junction, it is characterized in that: described screw rod (7) comprises the first screw rod (8), the second screw rod (9) and the 3rd screw rod (10), described the first screw rod (8) connects the second screw rod (9) one ends and is provided with pipe link (119), described the second screw rod (9) connects the first screw rod (8) one ends and offers No. two grooves (120) that coordinate described pipe link (119), it is No. two convex heads (112) that described the second screw rod (9) connects the 3rd screw rod (10) end, described the 3rd screw rod (10) connects the second screw rod (9) end and offers No. three grooves (113) that coordinate second (9) No. two convex heads of screw rod (112), be provided with No. three elastic partss (114) in described No. three grooves (113).
2. car jack as claimed in claim 1, it is characterized in that: No. two convex heads (112) of described the second screw rod (9) are for square, described the 3rd (10) No. three grooves of screw rod (113) are square, and described No. two convex heads (112) can be combined closely with described No. three grooves (113).
3. car jack as claimed in claim 1, it is characterized in that: described No. three elastic partss (114) are spring.
4. car jack as claimed in claim 1, it is characterized in that: described spring maximum compressibility is 24 percent of free height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310070421.7A CN103121648B (en) | 2013-03-06 | 2013-03-06 | Car jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310070421.7A CN103121648B (en) | 2013-03-06 | 2013-03-06 | Car jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103121648A true CN103121648A (en) | 2013-05-29 |
| CN103121648B CN103121648B (en) | 2015-10-07 |
Family
ID=48452845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310070421.7A Active CN103121648B (en) | 2013-03-06 | 2013-03-06 | Car jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103121648B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2679130Y (en) * | 2004-02-06 | 2005-02-16 | 侯兴福 | Automotive electric jack |
| CN201099595Y (en) * | 2007-09-04 | 2008-08-13 | 常熟通润汽车零部件有限公司 | Scissor jack |
| CN201169515Y (en) * | 2008-03-14 | 2008-12-24 | 严祖炎 | Dynamoelectric scissor jack |
-
2013
- 2013-03-06 CN CN201310070421.7A patent/CN103121648B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2679130Y (en) * | 2004-02-06 | 2005-02-16 | 侯兴福 | Automotive electric jack |
| CN201099595Y (en) * | 2007-09-04 | 2008-08-13 | 常熟通润汽车零部件有限公司 | Scissor jack |
| CN201169515Y (en) * | 2008-03-14 | 2008-12-24 | 严祖炎 | Dynamoelectric scissor jack |
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| Publication number | Publication date |
|---|---|
| CN103121648B (en) | 2015-10-07 |
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