CN200977653Y

CN200977653Y - Automatic opening device for tool box cap

Info

Publication number: CN200977653Y
Application number: CNU2006201653453U
Authority: CN
Inventors: 赵雄文
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-05
Filing date: 2006-12-05
Publication date: 2007-11-21
Anticipated expiration: 2016-12-05

Abstract

The utility model relates to a box cover automatic opening device of a tool box, which belongs to an auxiliary part added on the tool box. The utility model comprises a fixing hinge plate used for arranging on the box cover, a torsion spring, wherein the torsion spring is arranged on the fixing hinge plate through a pin axle, a first torsion spring foot used to tightly press the of the box cover is arranged at an end of the torsion spring, and a second torsion spring foot of the box cover used to tightly press the box body is arranged at the other end of the torsion spring. The utility model is characterized in that not only the automatic opening of the box cover is realized, but also the automatic close of the box cover is prevented when being opened or in the opening process through arranging the torsion spring on the fixing hinge plate, being beneficial for improving the secure operation performance; the utility model has simple structure, convenient installation, and low production cost; more than one box cover automatic opening device are used on the tool box, therefore the dimensions of the tool box has no limit, with a wide range of application; after the first and second bushings and a movable pulley are utilized, the tool box is protected, without damaging.

Description

Tool box case lid automatic open device

Technical field

The utility model relates to a kind of tool box case lid automatic open device, is installed in the hinge point place of tool box case lid and casing, is used to realize the automatic unlatching of case lid and prevents the tong of case lid when closing automatically, belongs to the appurtenances of setting up on the tool box.

Background technology

At present, common all kinds of tool boxes or claim Tool Cabinet on the market, the mode that its case lid is opened mainly comprises following three kinds: a kind of is need not any mechanism, directly adopt manual mode that case lid is opened, this mode requires the open angle of case lid greater than 95 °-102 °, and when opening or in the opening process, because the effect of inertia of gravity, case lid tends to fall down automatically and clamps operating personnel's hand, not only there is potential safety hazard, but also can increases operator's labour intensity, reduction operating efficiency; Second kind is by set up linkage between casing and case lid, can avoid falling down the potential safety hazard that causes automatically owing to case lid, but this mode need be finished the breakdown action of case lid equally by manual operation, not only labour intensity height, inefficiency, and install loaded down with trivial details, the cost of manufacture height; The third is to be connected with pneumatic strut between casing, rely on the effect of pneumatic strut, adopt manual mode to reach the purpose of opening case lid, although can prevent the closed voluntarily of case lid by pneumatic strut when opening or in the opening process, improve the safe application performance in tool box, but, have defective that the above-mentioned second way is deposited equally.

Summary of the invention

The purpose of this utility model be to provide a kind of simple in structure, easy for installation, safe and reliable, cost is low, can not only open case lid automatically and can effectively prevent case lid closure and the tool box case lid automatic open device of tong voluntarily when opening or in the process of unlatching.

The purpose of this utility model is achieved like this, and a kind of tool box case lid automatic open device comprises that one is used to be installed to the Fixed hinge plate 1 that case lid gets on; One torque spring 2 is installed on the Fixed hinge plate 1 by bearing pin 3, and the first torsion spring pin 21, the other end tool that one end tool is used to compress case lid is used to compress the second torsion spring pin 22 of casing.

The utility model is formed with torsion spring installing hole 12 and pin shaft hole 11 in an end end of described Fixed hinge plate 1, torque spring 2 places in the torsion spring installing hole 12, and bearing pin 3 is installed in torque spring 2 on the Fixed hinge plate 1 behind the through hole 23 that passes pin shaft hole 11 and torque spring 2 centres.

The utility model is installed with first, second sleeve pipe 211,221 respectively in the terminal end of described first, second

torsion spring pin

21,22.

The material of first, second sleeve pipe 211,221 described in the utility model is any one in plastics or the rubber.

The utility model is equipped with a movable pulley 4 in the not end end of the described second torsion spring pin 22.

The utility model is because after adopting said structure, one of advantage that has, by being installed in the torque spring 2 on the Fixed hinge plate 1, can not only realize the automatic unlatching of case lid, and can effectively prevent the voluntarily closure of case lid when opening or in the opening process, help improving safe application performance; Advantage two, simple in structure, easy for installation, cost of manufacture is low; Three, this case lid automatic open device can use more than one on the tool box simultaneously, so unrestricted to the dimensions in tool box, applied widely; Four, adopt first, second sleeve pipe 211,221 and movable pulley 4 after, can protect the tool box injury-free.

Description of drawings

Fig. 1 is a structure diagram of the present utility model.

Fig. 2 is applied to an example structure figure on the tool box for the utility model.

Among the figure: 1. Fixed hinge plate, 11. pin shaft holes, 12. torsion spring installing holes; 2. torque spring, 21. first torsion spring pin, 211. first sleeve pipes, 22. second torsion spring pin, 221 second sleeve pipes, 23. through holes; 3. bearing pin; 4. movable pulley; 5. casing latch; 6. casing, 61. drawers, 611. backboards, 62. are locked protruding, 63. drawer top panels; 7. locking plate, 71. slots; 8. hinge; 9. case lid, 91. box fasteners.

The specific embodiment

By following description to embodiment, will help to understand the utility model more, still, specific embodiment can't be considered as restriction to some extent to technical solutions of the utility model.

See also Fig. 1 and in conjunction with Fig. 2, the material of Fixed hinge plate 1 of the present utility model is preferably metal, through the pressing equipment punch forming, torsion spring installing hole 12 in the middle of the one end end and the circle of both sides circle shaping pin axis hole 11 are integrally formed during with 1 moulding of Fixed hinge plate.The middle tool through hole 23 of torque spring 2 bodies, both sides stretch out and are formed with first, second

torsion spring pin

21,22 in the end bending respectively, the first torsion spring pin 21 is affixed on the upper surface of Fixed hinge plate 1, is used to compress case lid, and the second torsion spring pin 22 is used for compressing with casing or casing latch.Simultaneously, in order to prevent from use to scratch the lacquer painting in tool box, can seal with first, second sleeve pipe 211,221 covers in the not end end of first, second

torsion spring pin

21,22, the material of first, second sleeve pipe 211,221 can be plastics, also can be rubber.Movable pulley 4 of the present utility model is installed in the not end end of the second torsion spring pin 22, is used for joining with the casing cunning, and its effect is in the process that case lid is opened, and prevents that the second torsion spring pin 22 from moving up and down and scratch casing.

Seeing also Fig. 2 narrates the utility model and is installed on a specific embodiment on the tool box, tool box shown in this Fig comprises casing 6, by the hinged case lid 9 of hinge 8 and casing 6, be located at the box fastener 91 on the case lid 9, be located at the lock protruding 62 with box fastener 91 snap closes of being used on the casing 6, be located at the drawer 61 in the casing 6, be positioned at the drawer top panel 63 and the casing latch 5 of drawer 61 tops, one end of described casing latch 5 in torque spring 2 places the torsion spring installing hole 12 of Fixed hinge plate 1 and by bearing pin 3 hub settings on Fixed hinge plate 1, and on the other end of described casing latch 5, have additional a locking plate 7, be formed with slot 71 between locking plate 7 and the casing latch 5, casing latch 5 can move up and down after passing through hole on the drawer top panel 63, and locking plate 7 is by backboard 611 lockings of the slot 71 on it with drawer 61.Please continue referring to Fig. 2, case lid automatic open device of the present utility model comprises the torque spring 2 that is installed in Fixed hinge plate 1 on the hinge 8 one side case lids 9, is installed in first, second

torsion spring pin

21,22 of tool on the Fixed hinge plate 1 by bearing pin 3, the first torsion spring pin 21 is affixed on the upper surface of Fixed hinge plate 1 and case lid 9 is compressed, the second torsion spring pin 22 is affixed on the casing latch 5, is installed with first, second sleeve pipe 211,221 of anti-scratch tool box lacquer painting in the course of the work simultaneously respectively in the terminal end of described first, second torsion spring pin 21,22.In this embodiment, owing in casing 6, have additional casing latch 5, the terminal end of the second torsion spring pin 22 directly is affixed on the casing latch 5, so can save the movable pulley 4 on the second torsion spring pin 22 that cooperates with casing 6.

Please narrate operating principle of the present utility model in conjunction with Fig. 2: the state shown in the figure be case lid 9 in opening, its relies on the torsion of torque spring 2 and spring angle to be enough to support that case lid 9 remains on open mode and auto-closing not.When with case lid 9 closures, by a pair of first,

second spring pin

21,22 on the torque spring 2, make torque spring 2 compressions, this process is the process of torque spring 2 savings elastic potential energys, after case lid 9 closures, by the snap action of the lock protruding 62 on box fastener on the case lid 9 91 and the casing 6, case lid 9 and casing 6 are pinned.After box fastener 91 and protruding 62 releases of lock, because the elastic potential energy of above-mentioned torque spring 2 savings is converted into spring kinetic energy, promote to turn on the case lid 9, thereby can real case lid 9 open automatically, and under the effect of torsion, stay open state and auto-closing not, tong phenomenon in can avoiding operating improves safe application performance.Simultaneously, the utility model can be according to the dimensions of tool box (or Tool Cabinet), at the case lid automatic open device that uses simultaneously on the tool box more than two or two.

Claims

1, a kind of tool box case lid automatic open device is characterized in that comprising that one is used to be installed to the Fixed hinge plate (1) that case lid gets on; One torque spring (2) is installed on the Fixed hinge plate (1) by bearing pin (3), and the first torsion spring pin (21), the other end tool that one end tool is used to compress case lid is used to compress the second torsion spring pin (22) of casing.

2, tool box according to claim 1 case lid automatic open device, it is characterized in that being formed with torsion spring installing hole (12) and pin shaft hole (11) in an end end of described Fixed hinge plate (1), torque spring (2) places in the torsion spring installing hole (12), and bearing pin (3) is installed in torque spring (2) on the Fixed hinge plate (1) after passing the middle through hole (23) of pin shaft hole (11) and torque spring (2).

3, tool box according to claim 1 case lid automatic open device is characterized in that being installed with first, second sleeve pipe (211), (221) respectively in the terminal end of described first, second torsion spring pin (21), (22).

4, tool box according to claim 3 case lid automatic open device, the material that it is characterized in that described first, second sleeve pipe (211), (221) is any one in plastics or the rubber.

5,, it is characterized in that a movable pulley (4) being installed in the not end end of the described second torsion spring pin (22) according to claim 1 or 3 described tool box case lid automatic open devices.