CN108584760B - Plastic jack with metal retainer - Google Patents
Plastic jack with metal retainer Download PDFInfo
- Publication number
- CN108584760B CN108584760B CN201810785208.7A CN201810785208A CN108584760B CN 108584760 B CN108584760 B CN 108584760B CN 201810785208 A CN201810785208 A CN 201810785208A CN 108584760 B CN108584760 B CN 108584760B
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- coaxial hole
- coaxial
- metal retainer
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- base
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- 239000002184 metal Substances 0.000 title claims abstract description 78
- 229920003023 plastic Polymers 0.000 title claims abstract description 16
- 239000004033 plastic Substances 0.000 title claims abstract description 16
- 238000001746 injection moulding Methods 0.000 claims abstract description 44
- 229920006351 engineering plastic Polymers 0.000 claims abstract description 5
- 239000010953 base metal Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/12—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The plastic jack is characterized in that a top part, a base part, a lower supporting arm assembly and an upper supporting arm assembly are formed by injection molding of the metal retainer and engineering plastics, and the top part is provided with a U-shaped clamping groove, a middle bridge uniform force plate, a first uniform force seat and a second uniform force seat; each bridge frame fixedly connected with two sides of the middle bridge uniform force plate is respectively and integrally connected with a left side bearing plate and a right side bearing plate; a first uniform force seat arranged at the bottom end part of the middle bridge uniform force plate is in running clearance fit with the first pin shaft, and a second uniform force seat is in running clearance fit with the second pin shaft; a left supporting plate, a middle supporting plate and a right supporting plate are arranged in parallel between a left base side plate and a right base side plate of the base component; the shearing jack adopts a small amount of metal pieces and a small amount of light-weight and low-cost metal retainer to integrally form the lifting tool with high cost performance by injection molding, thereby greatly reducing the cost.
Description
Technical Field
The invention relates to a jack with a plastic main body, in particular to a plastic jack with a metal retainer for lifting a matched vehicle.
Background
The production factories of the types of vehicles are expected to be thick for cost reduction of parts and tools of related vehicles because the loads of the vehicles are determined, the vehicles are light and the service environment is good, for example, a plurality of automobile host factories have definite targets for cost reduction to respective automobile parts and tools, so that the quality of each matched product is kept and improved, quantitative indexes for cost reduction can be provided, the situation is said to be in line with the rule of product competition in market economy, professional manufacturers specially providing various types of weight lifting tools for each vehicle type are also provided, and the application is a novel and practical vehicle-mounted shear-type plastic jack which is creatively designed and manufactured on the premise of changing the design concept and fully guaranteeing the quality level.
Disclosure of Invention
The original research subject of the scissor jack using plastic as the main material is designed in view of the competing pressure of the quality and cost of the automobile accessory tool. Engineers overcome the constraint of the traditional concept, revolutionize the materials of a plurality of structural members of the scissor jack, and make computer modeling, theoretical calculation analysis and even complete pattern tests according to various indexes defined by technical standards, then gradually correct and lift the level of each parameter, thereby achieving the purpose of reducing the product cost to nearly two thirds of the prior full-steel structure jack in the whole production process, and realizing the transition from completely using high-quality steel materials to integrally injection molding with a small quantity of metal pieces and a small quantity of lightweight and low-cost metal retainer to form the light and durable high-cost-performance automobile lifting tool.
The above object of the present invention is achieved by the following technical solutions: a plastic jack with metal retainer comprises a power-driven metal screw pair, a base part, a lower supporting arm assembly, an upper supporting arm assembly, a top part and various revolute pair connecting hinges, and is characterized in that: the top part, the base part, the lower supporting arm assembly and the upper supporting arm assembly are formed by injection molding of a metal retainer and engineering plastics, and before injection molding of the top part, the top metal retainer is arranged in a die; before the base part is injection molded, a base metal retainer is arranged in the mold; before injection molding of the right part of the upper supporting arm in the upper supporting arm assembly, a metal retainer of the right part of the upper supporting arm is arranged in a die; before injection molding of the left part of the upper supporting arm in the upper supporting arm assembly, a metal retainer of the left part of the upper supporting arm is arranged in a die; before injection molding of the right part of the lower supporting arm in the lower supporting arm assembly, a metal retainer of the right part of the lower supporting arm is arranged in a die; before injection molding of the left part of the lower supporting arm in the lower supporting arm assembly, a metal retainer of the left part of the lower supporting arm is placed in a mold; the third coaxial hole formed on the plug part formed by injection molding is coaxially combined with the first coaxial hole on the plug metal retainer, and the fourth coaxial hole is coaxially combined with the second coaxial hole on the plug metal retainer by injection molding; in injection molding of the base component after the base metal retainer is placed, the fifth coaxial hole is coaxial with the seventh coaxial hole on the base metal retainer, and the sixth coaxial hole is coaxially combined with the eighth coaxial hole on the base metal retainer by injection molding; a left supporting plate, a middle supporting plate and a right supporting plate are arranged in parallel between a left base side plate and a right base side plate of the base component; a first cavity, a second cavity, a third cavity, a fourth cavity, a fifth cavity and a sixth cavity of a material-saving through hole are formed in the base part; the ninth coaxial hole arranged on the right part of the upper supporting arm is coaxial with the tenth coaxial hole on the metal retainer of the right part of the upper supporting arm, and the tenth coaxial hole and the twelfth coaxial hole are coaxially combined by injection molding; the thirteenth coaxial hole arranged on the left part of the upper supporting arm is coaxial with the fourteenth coaxial hole on the metal retainer of the left part of the upper supporting arm, and the fifteenth coaxial hole and the sixteenth coaxial hole are coaxially combined by injection molding; a seventeenth coaxial hole formed in the right part of the lower supporting arm is coaxial with an eighteenth coaxial hole in the metal retainer of the right part of the lower supporting arm, and a nineteenth coaxial hole and a twentieth coaxial hole are coaxially combined by injection molding; the twenty-second coaxial hole is arranged on the left part of the lower supporting arm and is coaxial with the twenty-second coaxial hole on the metal retainer of the left part of the lower supporting arm, and the twenty-third coaxial hole and the twenty-fourth coaxial hole are coaxially combined by injection molding; the third revolute pair is formed by rotationally connecting a third coaxial hole, a fifteenth coaxial hole and a first pin shaft; the fourth revolute pair is formed by rotationally connecting a fourth coaxial hole, a tenth coaxial hole and a second pin shaft; the second revolute pair is formed by rotationally connecting a sixth coaxial hole, a nineteenth coaxial hole and a fourth pin shaft; the first revolute pair is formed by rotationally connecting a fifth coaxial hole, a twenty-third coaxial hole and a third pin shaft; the fifth revolute pair is formed by rotationally connecting a thirteenth coaxial hole, a twenty-first coaxial hole and a hinge nut; the sixth revolute pair is formed by a ninth coaxial hole, a seventeenth coaxial hole and a hinge pin shaft in a rotary connection mode.
Wherein, on the top metal holder in the top part, a left side plate and a right side plate are provided and are joined together by a first bridge member and a second bridge member.
Wherein, the top part is provided with a U-shaped clamping groove and a middle bridge force-equalizing plate, and the bottom end part of the middle bridge force-equalizing plate is respectively provided with a first force-equalizing seat and a second force-equalizing seat; the left side bearing plate and the right side bearing plate are respectively integrally pulled and connected with the arched front left bridge frame, the arched front right bridge frame, the arched middle left bridge frame, the arched middle right bridge frame, the arched rear left bridge frame and the arched rear right bridge frame which are fixedly connected with the two sides of the middle bridge force-equalizing plate.
The first uniform force seat arranged at the bottom end part of the middle bridge uniform force plate is in running clearance fit with the first pin shaft, and the second uniform force seat is in running clearance fit with the second pin shaft.
Wherein the base metal retainer in the base member is in a "U" shape; the upper ends of the left supporting plate, the middle supporting plate and the right supporting plate are provided with a first semicircular seat, a second semicircular seat and a third semicircular seat which form a fifth coaxial hole with a through hole of the left side plate of the base and a through hole of the right side plate of the base; the fourth semicircular seat, the fifth semicircular seat and the sixth semicircular seat which are arranged at the upper end parts of the left supporting plate, the middle supporting plate and the right supporting plate form a sixth coaxial hole with the other through hole of the left side plate of the base and the other through hole of the right side plate of the base.
The first semicircular seat, the second semicircular seat and the third semicircular seat are in running fit with the third pin shaft; the fourth semicircular seat, the fifth semicircular seat, the sixth semicircular seat and the fourth pin shaft are in running clearance fit.
Compared with the prior art, the invention has the following beneficial effects: the shearing jack is changed from completely using high-quality steel materials to integrally injection-molding a small amount of metal pieces and a small amount of light-weight and low-cost metal retainer to form the automobile lifting tool which has the advantages of strength, light weight, durability and high cost performance, thereby realizing the larger-amplitude cost reduction requirement.
Drawings
Description of the drawings of the embodiments:
fig. 1 is a schematic perspective view of a complete machine of a vehicle-mounted scissor jack according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the lap joint formed on the basis of the metallic cage members of the present case;
fig. 3 is a perspective view of the plug metal retainer of the present embodiment;
FIG. 4 is a schematic perspective view of a plug member;
FIG. 5 is a schematic perspective view of the plug member inverted;
FIG. 6 is a schematic perspective view of a base metal retainer;
FIG. 7 is a schematic perspective view of a base member;
FIG. 8 is a schematic perspective view of the base member inverted;
FIG. 9 is a perspective view of the upper support arm right side metal retainer;
FIG. 10 is a schematic perspective view of the right side member of the upper support arm;
FIG. 11 is a schematic perspective view of the upper support arm right side member inverted;
FIG. 12 is a perspective view of the upper support arm left side metal retainer;
FIG. 13 is a perspective view of the left side member of the upper support arm;
FIG. 14 is an inverted perspective view of the left side member of the upper support arm;
FIG. 15 is a perspective view of the lower support arm right side metal retainer;
FIG. 16 is a perspective view of the right side member of the lower support arm;
FIG. 17 is an inverted perspective view of the right side member of the lower support arm;
FIG. 18 is a perspective view of the lower support arm left side metal retainer;
FIG. 19 is a perspective view of the left side member of the lower support arm;
FIG. 20 is an inverted perspective view of the left side member of the lower support arm;
FIG. 21 is a front view of a plug member;
FIG. 22 is a top view relative to FIG. 21;
FIG. 23 is a cross-sectional view "A-A" in FIG. 21;
FIG. 24 is a front view of the base member;
fig. 25 is a sectional view "B-B" on fig. 24.
The names of the components and related geometric structural elements shown in the figures are as follows:
1 a power driven metal screw pair, 2 a base part, 3 a lower support arm assembly, 4 an upper support arm assembly, 5 a plug part, 6 a first revolute pair, 7 a second revolute pair, 8 a third revolute pair, 9 a fourth revolute pair, 10 a fifth revolute pair, 11 a sixth revolute pair, 12 a plug metal retainer, 13 a base metal retainer, 14 a hinge nut, 15 a hinge pin, 16 a first bridge, 17 a second bridge, 18 a left side plate, 19 a right side plate, 20 a first coaxial hole, 21 a second coaxial hole, 22 a third coaxial hole, 23 a fourth coaxial hole, 24 a U-shaped clamping groove, 25 a middle bridge power balancing plate, 26 a first power balancing seat, 27 a second power balancing seat, 28 an arched front left bridge, 29 arched front right bridge, 30 arched middle left bridge, 31 arched middle right bridge, 32 arched rear left bridge, 33 arched rear right bridge, 34 left bearing plate, 35 right bearing, 36 seventh coaxial hole, 37 eighth coaxial hole, 38 fifth coaxial hole, 39 sixth coaxial hole, 40 base left side plate, 41 base right side plate, 42 left supporting plate, 43 middle supporting plate, 44 right supporting plate, 45 first semicircle seat, 46 second semicircle seat, 47 third semicircle seat, 48 fourth semicircle seat, 49 fifth semicircle seat, 50 sixth semicircle seat, 51 first cavity, 52 second cavity, 53 third cavity, 54 fourth cavity, 55 fifth cavity, 56 sixth cavity; 57 tenth coaxial hole, 58 ninth coaxial hole, 59 upper bearing arm right member, 60 upper bearing arm right member metal cage, 61 upper bearing arm left member, 62 upper bearing arm left member metal cage, 63 lower bearing arm right member, 64 lower bearing arm right member metal cage, 65 lower bearing arm left member, 66 lower bearing arm left member metal cage, 67 tenth coaxial hole, 68 twelfth coaxial hole, 69 thirteenth coaxial hole, 70 fourteenth coaxial hole, 71 fifteenth coaxial hole, 72 sixteenth coaxial hole, 73 seventeenth coaxial hole, 74 eighteenth coaxial hole, 75 nineteenth coaxial hole, 76 twentieth coaxial hole, 77 twentieth coaxial hole, 78 twenty second coaxial hole, 79 twenty third coaxial hole, 80 twenty fourth coaxial hole, 81 first pin, 82 second pin, 83 third pin, 84 fourth pin.
Detailed Description
The technical contents and effects of the present invention will be further described with reference to the drawings of the embodiments, but the description of the embodiments is not limited to the technical solutions, and any equivalent transformation in form according to the concepts of the present invention should be regarded as the scope of the technical solutions.
As can be seen from the drawings, the embodiment of the invention is obviously different from the structural member of the traditional scissor jack, fully considers the objective requirement of reinforcing the mechanical structural member strength caused by dynamic adverse factors in the lifting process of the automobile by using the metal retainer combined engineering plastics for injection molding to form the main structural member materials of the scissor jack, namely the top part 5, the base part 2, the lower supporting arm component 3 and the upper supporting arm component 4, and is matched with a small amount of metal structural members, so that the vehicle-mounted supporting jack of the embodiment has higher mechanical strength, toughness, impact resistance, excellent low-temperature environment use characteristics and self-lubricity required in various rotation and sliding movements of the jack including meshing teeth. Meanwhile, a large amount of metal leftover materials are used for manufacturing the metal retainer of the related structural member in factory production, so that high-quality metal raw materials and manpower, material resources and financial resources in each production process are greatly saved, and after each plastic part is assembled from the aspect of the overall reliability of the metal structural member of the jack, as seen from a combined three-dimensional schematic effect diagram of the metal retainer in FIG. 2, when the whole jack is operated after being assembled, the retainers formed by the metal structural members of the whole jack are hinged with each other, so that the mechanical strength and the use safety of the scissor jack are greatly ensured.
The embodiments of the present invention are combined as follows: the plastic jack with the metal retainer comprises a power-driven metal screw thread pair 1, a base part 2, a lower supporting arm assembly 3, an upper supporting arm assembly 4, a plug part 5 and a connecting pivot of each revolute pair, wherein the plug part 5, the base part 2, the lower supporting arm assembly 3 and the upper supporting arm assembly 4 are formed by injection molding of the metal retainer and engineering plastics; before injection molding of the plug part 5, placing a plug metal retainer 12 in the mold; before the base part 2 is injection molded, a base metal retainer 13 is placed in the mold; the upper support arm right part 59 in the upper support arm assembly 4 is placed in the mold with the upper support arm right part metal retainer 60 prior to injection molding; the metal retainer 62 of the left part of the upper supporting arm is put into the mould before the injection molding of the left part 61 of the upper supporting arm in the upper supporting arm assembly 4; a lower support arm right part metal retainer 64 is placed in the mold before the lower support arm right part 63 in the lower support arm assembly 3 is injection molded; before injection molding of the lower support arm left part 65 in the lower support arm assembly 3, a lower support arm left part metal retainer 66 is placed in the mold; the third coaxial hole 22 arranged on the plug part 5 formed by injection molding is coaxially combined with the first coaxial hole 20 on the plug metal retainer 12, and the fourth coaxial hole 23 is coaxially combined with the second coaxial hole 21 on the plug metal retainer 12 by injection molding; in the injection molding of the base member 2 after the placement of the base metal holder 13, the fifth coaxial hole 38 is coaxially combined with the seventh coaxial hole 36 on the base metal holder 13, and the sixth coaxial hole 39 is coaxially combined by injection molding with the eighth coaxial hole 37 on the base metal holder 13; a left thrust plate 42, a middle thrust plate 43, and a right thrust plate 44 are provided in parallel between the base left side plate 40 and the base right side plate 41 of the base member 2; the base part 2 is provided with a first cavity 51, a second cavity 52, a third cavity 53, a fourth cavity 54, a fifth cavity 55 and a sixth cavity 56 which are provided with material saving through holes; the ninth coaxial hole 58 provided in the upper support arm right member 59 is combined by injection molding coaxially with the tenth coaxial hole 57, the eleventh coaxial hole 67 and the twelfth coaxial hole 68 in the upper support arm right member metal holder 60; the thirteenth coaxial hole 69 provided in the upper support arm left-side member 61 is combined by injection molding coaxially with the fourteenth coaxial hole 70 in the upper support arm left-side member metal holder 62, and the fifteenth coaxial hole 71 is combined by injection molding coaxially with the sixteenth coaxial hole 72; a seventeenth coaxial hole 73 provided in the lower support arm right member 63 is coaxial with an eighteenth coaxial hole 74 in the lower support arm right member metal holder 64, and a nineteenth coaxial hole 75 is combined by injection molding coaxially with the twentieth coaxial hole 76; the twenty-second coaxial hole 77 provided in the lower support arm left member 65 is coaxial with the twenty-second coaxial hole 78 in the lower support arm left member metal retainer 66, and the twenty-third coaxial hole 79 is combined by injection molding coaxially with the twenty-fourth coaxial hole 80; the third revolute pair 8 is formed by rotationally connecting a third coaxial hole 22, a fifteenth coaxial hole 71 and a first pin shaft 81; the fourth revolute pair 9 is formed by rotationally connecting a fourth coaxial hole 23, a tenth coaxial hole 67 and a second pin 82; the second revolute pair 7 is formed by rotationally connecting a sixth coaxial hole 39, a nineteenth coaxial hole 75 and a fourth pin shaft 84; the first rotating pair 6 is formed by rotationally connecting a fifth coaxial hole 38, a twenty-third coaxial hole 79 and a third pin 83; on the plug metal holder 12 in the plug member 5, a left side plate 18 and a right side plate 19 are provided, and the left side plate 18 and the right side plate 19 are joined integrally with a first bridge 16 and a second bridge 17; the top part 5 is provided with a U-shaped clamping groove 24 and a middle bridge uniform force plate 25, and two bottom ends of the middle bridge uniform force plate 25 are respectively provided with a first uniform force seat 26 and a second uniform force seat 27; the left side bearing plate 34 and the right side bearing plate 35 are respectively integrally pulled by an arched front left bridge frame 28, an arched front right bridge frame 29, an arched middle left bridge frame 30, an arched middle right bridge frame 31, an arched rear left bridge frame 32 and an arched rear right bridge frame 33 which are fixedly connected at two sides of the middle bridge force equalizing plate 25; the first uniform force seat 26 arranged at the bottom end part of the middle bridge uniform force plate 25 is in rotary clearance fit with the first pin shaft 81, and the second uniform force seat 27 is in rotary clearance fit with the second pin shaft 82, so that the stress condition between related structural members is improved; the base metal holder 13 in the base part 2 has a "U" shape; the first semicircular seat 45, the second semicircular seat 46 and the third semicircular seat 47 which are arranged at the upper end parts of the left supporting plate 42, the middle supporting plate 43 and the right supporting plate 44 form a fifth coaxial hole 38 with a through hole of the base left side plate 40 and a through hole of the base right side plate 41; a fourth semicircular seat 48, a fifth semicircular seat 49 and a sixth semicircular seat 50 which are arranged at the upper end parts of the left supporting plate 42, the middle supporting plate 43 and the right supporting plate 44 form a sixth coaxial hole 39 with the other through hole of the base left side plate 40 and the other through hole of the base right side plate 41; the first semicircular seat 45, the second semicircular seat 46 and the third semicircular seat 47 are in clearance fit with the third pin shaft 83; the fourth semicircular seat 48, the fifth semicircular seat 49 and the sixth semicircular seat 50 are in clearance fit with the fourth pin shaft 84; the fifth revolute pair 10 is formed by combining a thirteenth coaxial hole 69, a twenty-first coaxial hole 77 and a hinge nut 14 in a rotary coupling manner; the sixth revolute pair 11 is rotatably coupled by a ninth coaxial hole 58, a seventeenth coaxial hole 73 and a hinge pin 15.
In the application of the technical scheme, the first force equalizing seat 26 and the second force equalizing seat 27 on the top component 5, and the first semicircular seat 45, the second semicircular seat 46, the third semicircular seat 47, the fourth semicircular seat 48, the fifth semicircular seat 49 and the sixth semicircular seat 50 arranged on the base component 2 are used as auxiliary bearing structures to effectively increase the bearing area on the relevant plastic component, so that all technical parameters of the embodiment scissor jack are ensured to meet the relevant technical standards.
Claims (5)
1. A plastic jack with metal retainer comprises a power-driven metal screw pair, a base part, a lower supporting arm assembly, an upper supporting arm assembly, a top part and various revolute pair connecting hinges, and is characterized in that: the top component (5), the base component (2), the lower supporting arm component (3) and the upper supporting arm component (4) are formed by adopting metal retainers and engineering plastics through injection molding, and before the top component (5) is subjected to injection molding, a top metal retainer (12) is arranged in a die; before the base part (2) is injection molded, a base metal retainer (13) is arranged in the mold; before the upper support arm right part (59) in the upper support arm assembly (4) is injection molded, an upper support arm right part metal retainer (60) is placed in a mold; before injection molding of an upper support arm left part (61) in the upper support arm assembly (4), placing an upper support arm left part metal retainer (62) in a mold; before the lower support arm right part (63) in the lower support arm assembly (3) is injection molded, a lower support arm right part metal retainer (64) is arranged in a mold; before the lower support arm left part (65) in the lower support arm assembly (3) is injection molded, a metal retainer (66) of the lower support arm left part is arranged in a mold; the third coaxial hole (22) arranged on the plug part (5) formed by injection molding is coaxially combined with the first coaxial hole (20) on the plug metal retainer (12), and the fourth coaxial hole (23) is coaxially combined with the second coaxial hole (21) on the plug metal retainer (12) by injection molding; in injection molding of the base part (2) after the base metal retainer (13) is placed, the fifth coaxial hole (38) is coaxial with the seventh coaxial hole (36) on the base metal retainer (13), and the sixth coaxial hole (39) is coaxially combined by injection molding with the eighth coaxial hole (37) on the base metal retainer (13); a left thrust plate (42), a middle thrust plate (43) and a right thrust plate (44) are arranged in parallel between a base left side plate (40) and a base right side plate (41) of the base component (2); a first cavity (51), a second cavity (52), a third cavity (53), a fourth cavity (54), a fifth cavity (55) and a sixth cavity (56) of the material-saving through hole are formed on the base part (2); a ninth coaxial hole (58) arranged on the upper supporting arm right side part (59) is coaxial with a tenth coaxial hole (57) on the upper supporting arm right side part metal retainer (60), and an eleventh coaxial hole (67) is coaxially combined with a twelfth coaxial hole (68) by injection molding; left side part of upper supporting arm (61)
The thirteenth coaxial hole (69) arranged on the upper support arm is coaxial with the fourteenth coaxial hole (70) on the metal retainer (62) of the left side part of the upper support arm, and the fifteenth coaxial hole (71) and the sixteenth coaxial hole (72) are coaxially combined by injection molding; a seventeenth coaxial hole (73) arranged on the right part (63) of the lower supporting arm is coaxial with an eighteenth coaxial hole (74) on the metal retainer (64) of the right part of the lower supporting arm, and a nineteenth coaxial hole (75) and a twentieth coaxial hole (76) are coaxially combined by injection molding; a twenty-second coaxial hole (77) provided in the lower support arm left member (65) is coaxial with a twenty-second coaxial hole (78) in the lower support arm left member metal retainer (66), and a twenty-third coaxial hole (79) is combined with a twenty-fourth coaxial hole (80) coaxially by injection molding; the third revolute pair (8) is formed by rotationally connecting a third coaxial hole (22), a fifteenth coaxial hole (71) and a first pin shaft (81); the fourth revolute pair (9) is formed by rotationally connecting a fourth coaxial hole (23), an eleventh coaxial hole (67) and a second pin shaft (82); the second revolute pair (7) is formed by rotationally connecting a sixth coaxial hole (39), a nineteenth coaxial hole (75) and a fourth pin shaft (84); the first revolute pair (6) is formed by rotationally connecting a fifth coaxial hole (38), a twenty-third coaxial hole (79) and a third pin shaft (83); the fifth revolute pair (10) is formed by rotationally connecting a thirteenth coaxial hole (69), a twenty-first coaxial hole (77) and a hinge nut (14); the sixth revolute pair (11) is formed by a ninth coaxial hole (58), a seventeenth coaxial hole (73) and a hinge pin (15) in a rotary connection mode.
2. A plastic jack with a metal retainer as claimed in claim 1, further characterized by: on a plug metal holder (12) in a plug member (5), a left side plate (18) and a right side plate (19) are provided, and the left side plate (18) and the right side plate (19) are joined integrally by a first bridge (16) and a second bridge (17).
3. The top part in the plastic jack with the metal retainer according to claim 2 is characterized in that a U-shaped clamping groove (24) and a middle bridge uniform force plate (25) are arranged on the top part (5), and a first uniform force seat (26) and a second uniform force seat (27) are respectively arranged at two ends of the bottom end part of the middle bridge uniform force plate (25); an arch front left bridge frame (28), an arch front right bridge frame (29), an arch middle left bridge frame (30), an arch middle right bridge frame (31), an arch rear left bridge frame (32) and an arch rear right bridge frame (33) which are fixedly connected with two sides of a middle bridge force equalizing plate (25) are respectively and integrally connected with a left side bearing plate (34) and a right side bearing plate (35); a first uniform force seat (26) arranged at the bottom end part of the middle bridge uniform force plate (25) is in rotary clearance fit with a first pin shaft (81), and a second uniform force seat (27) is in rotary clearance fit with a second pin shaft (82).
4. A plastic jack with a metal retainer as claimed in claim 1, further characterized by: the base metal retainer (13) in the base part (2) is in a U shape; a first semicircular seat (45), a second semicircular seat (46) and a third semicircular seat (47) which are arranged at the upper ends of the left supporting plate (42), the middle supporting plate (43) and the right supporting plate (44) form a fifth coaxial hole (38) with a through hole of the left base side plate (40) and a through hole of the right base side plate (41); a fourth semicircular seat (48), a fifth semicircular seat (49) and a sixth semicircular seat (50) which are arranged at the upper ends of the left supporting plate (42), the middle supporting plate (43) and the right supporting plate (44) form a sixth coaxial hole (39) with the other through hole of the base left side plate (40) and the other through hole of the base right side plate (41).
5. The base member of a plastic jack with a metal retainer of claim 4, further characterized by: the first semicircular seat (45), the second semicircular seat (46) and the third semicircular seat (47) are in rotary fit with the third pin shaft (83); the fourth semicircular seat (48), the fifth semicircular seat (49), the sixth semicircular seat (50) and the fourth pin shaft (84) are in rotary clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810785208.7A CN108584760B (en) | 2018-07-17 | 2018-07-17 | Plastic jack with metal retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810785208.7A CN108584760B (en) | 2018-07-17 | 2018-07-17 | Plastic jack with metal retainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108584760A CN108584760A (en) | 2018-09-28 |
| CN108584760B true CN108584760B (en) | 2024-03-08 |
Family
ID=63617825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810785208.7A Active CN108584760B (en) | 2018-07-17 | 2018-07-17 | Plastic jack with metal retainer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110371884A (en) * | 2019-07-29 | 2019-10-25 | 南通市通润汽车零部件有限公司 | A kind of scissor-like jack increases top component |
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| US6695289B1 (en) * | 2003-02-03 | 2004-02-24 | Emil Mickael | Motor driven scissor jack with limit switches |
| TW201020200A (en) * | 2008-07-08 | 2010-06-01 | Quaddro Technologies Pty Ltd | A scissor jack |
| CN103011007A (en) * | 2012-12-18 | 2013-04-03 | 南通市通润汽车零部件有限公司 | Fork shrinkage type screw jack |
| CN203079622U (en) * | 2012-12-18 | 2013-07-24 | 南通市通润汽车零部件有限公司 | Fork shrinkage type screw jack |
| CN104129733A (en) * | 2014-07-18 | 2014-11-05 | 南通市通润汽车零部件有限公司 | Scissor jack of optimized structure |
| CN107188071A (en) * | 2017-05-23 | 2017-09-22 | 南通市通润汽车零部件有限公司 | Combine the high-order scissor-like jack of band |
| CN208666974U (en) * | 2018-07-17 | 2019-03-29 | 南通市通润汽车零部件有限公司 | Plastics jack with metal cage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6695289B1 (en) * | 2003-02-03 | 2004-02-24 | Emil Mickael | Motor driven scissor jack with limit switches |
| TW201020200A (en) * | 2008-07-08 | 2010-06-01 | Quaddro Technologies Pty Ltd | A scissor jack |
| CN103011007A (en) * | 2012-12-18 | 2013-04-03 | 南通市通润汽车零部件有限公司 | Fork shrinkage type screw jack |
| CN203079622U (en) * | 2012-12-18 | 2013-07-24 | 南通市通润汽车零部件有限公司 | Fork shrinkage type screw jack |
| CN104129733A (en) * | 2014-07-18 | 2014-11-05 | 南通市通润汽车零部件有限公司 | Scissor jack of optimized structure |
| CN107188071A (en) * | 2017-05-23 | 2017-09-22 | 南通市通润汽车零部件有限公司 | Combine the high-order scissor-like jack of band |
| CN208666974U (en) * | 2018-07-17 | 2019-03-29 | 南通市通润汽车零部件有限公司 | Plastics jack with metal cage |
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| CN108584760A (en) | 2018-09-28 |
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