CN209064000U - The rack-and-pinion of article shading curtain covers unlocking mechanism - Google Patents

Abstract

The utility model covers unlocking mechanism about a kind of rack-and-pinion of article shading curtain, it is used to be arranged in the capping of cord central siphon end of article shading curtain, it includes having briquetting that rack-and-pinion, which covers unlocking mechanism, fixed block, an at least gear and at least a reseting elastic element, briquetting and fixed block are revolvably mounted on the different two sides of capping respectively, gear is hubbed in capping, first tooth-strip part of at least one gear engagement connection briquetting and the second tooth-strip part of fixed block, reseting elastic element is set in capping, reseting elastic element is connected to briquetting, any one or more in fixed block and gear three, briquetting and fixed block is set to pass through gear, the engagement formation of first tooth-strip part and the second tooth-strip part, reseting elastic element provides reseting elasticity and interlocks, make rack-and-pinion capping unlocking mechanism that there is locking and the unlocking function of gearing property, and it can provide Good ease-to-operate and rapid operation and other effects.

Description

The rack-and-pinion of article shading curtain covers unlocking mechanism

Technical field

The utility model relates to a kind of capping unlocking mechanism of article shading curtain, espespecially a kind of cord central siphon applied to article shading curtain In the capping of side, cord central siphon is enable to generate the rack-and-pinion of the functions such as locking and unlock in the car body side wall of motor vehicles Cover unlocking mechanism.

Background technique

The article shading curtain of masking article function is provided to the rear material-putting space of car body applied in motor vehicles at present, it is main It is to combine coiler to connect cord in cord central siphon, so that cord is pulled out expansion from cord central siphon by coiler, and Inside the cord energy automatic rolling to cord central siphon of expansion.To enable article shading curtain to be assembled in car body, the cord central siphon both ends Capping be locked in the two sidewalls of rear material-putting space of car body by snap mechanism respectively, in this way, the curtain of article shading curtain Cloth can pull cord to be unfolded by user, then be connected in car body by the locating convex block at the cord tailgate both ends of cord rear end Rear material-putting space on rear side of two sidewalls in, enable cord expansion positioning, material-putting space after the car body of motor vehicles is provided Hide object function.

When traditional article shading curtain is assembled in the car body of motor vehicles, stretched using energy center line in the capping of cord central siphon both ends The snap device of contracting is fixed on after car body in the catching groove of the two sidewalls of material-putting space, and the setting of cord central siphon group is enable to be located at car body Two sides between.Although the snap device that the aforementioned snap device being installed in capping can be stretched using its center line, makes cord Have the function of locking and unlock between central siphon and car body side wall, still, cord central siphon is installed or removes the operation of cord central siphon In the process, operator must compress the snap device unlock in capping with exerting a force by force along the center line of cord central siphon, hide Object curtain tear group open during, have and operate laborious problem.

In order to solve the problems, such as that aforementioned operation is laborious, existing capping at present is provided using rotation unlocking type snap device The relatively labor-saving mode of operation of user, still, the whole composition of rotation unlocking type snap device, structure is complex, Er Qieshe In the operating process locked and unlocked, the necessary turning knob of user drives solid rotation unlocking type snap device in capping Determine the movement that block executes locking with unlock, still there is inconvenient problem.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of rack-and-pinions of article shading curtain to cover unlocking mechanism, solution Certainly existing rotation unlocking type snap device structure is complicated and it is inconvenient the problems such as.

The technical solution that the utility model is proposed is: a kind of rack-and-pinion capping unlocking mechanism of article shading curtain is provided, It is used to be installed in the capping of cord central siphon end of article shading curtain, and opening is formed in the peripheral wall of the capping towards axial one end Accommodating space, the peripheral wall have adjacent the first side plate and the second side plate, wherein connection is equipped in the first side plate of the capping The one first of the accommodating space perforates, and one second perforation for being connected to the accommodating space is equipped in second side plate, first perforation There is a first pivoting portion far from biperforate a side, which has one far from a side of first perforation Second pivoting portion；

It includes a briquetting, a fixed block, at least a gear and an at least Flexible Reset that the rack-and-pinion, which covers unlocking mechanism, Element, the briquetting and the fixed block are revolvably mounted on the first perforation of the capping and the second perforation, the briquetting respectively to be revolved The first side plate of the capping is outer out and screws in the first side plate, and the second side plate which can screw out the capping is outer and screw in the In two side plates, which, which has, protrudes into one first tooth-strip part in the capping, which has one the protruded into the capping Two tooth-strip parts, the gear are hubbed in the accommodating space of the capping, and at least one gear engagement connects the first of the briquetting Second tooth-strip part of tooth-strip part and the fixed block and interlock, the reseting elastic element is installed in the capping, and the reset Elastic element connects any one or more in the gear, the briquetting and the fixed block, and can provide reseting elasticity, makes the tooth Formula capping unlocking mechanism has locking and the unlocking function of gearing property.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, the gear is one, and the gear has one Gear part, first tooth-strip part engage with the second tooth-strip part Heterogeneous Permutation and connect the gear part.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, the gear is one, and the gear includes one First gear portion and a second gear portion, the first gear portion and the second gear portion are coaxially disposed, and the first gear portion Diameter is different with the diameter in the second gear portion, and the first tooth-strip part engagement of the briquetting connects the first gear portion, the fixed block The second tooth-strip part engagement connect the second gear portion.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, the gear is two, and two gears are adjacent It being hubbed in the capping and is intermeshed, the gear engagement of one in two gears connects the first tooth-strip part of the briquetting, Another gear engagement connects the second tooth-strip part of the fixed block.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, two gears are that diameter is equal or diameter phase It is different.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, the other end of the peripheral wall of the capping relative to opening End plate with connection the first side plate and the first side plate, first perforation have one first pivot far from biperforate a side Socket part, second perforation have a second pivoting portion far from a side of the first perforation；The gear combines a pivot column to be hubbed at The end plate；The side of the briquetting is one first pivot joint end, which is pivotally connected first pivoting portion, the briquetting with the first pivot joint end The other side relative to the first pivot joint end is one first movable end, which can rotate around the first pivoting portion, make First movable end of the briquetting can protrude outside the first side plate of capping, and the briquetting can be pressed and shrink back to first side plate Interior, which is set to first movable end；The side of the fixed block is one second pivot joint end, and the fixed block is with the Two pivot joint ends are pivotally connected second pivoting portion, which is one second movable end relative to the other side of the second pivot joint end, The fixed block can be rotated around the second pivoting portion, and the second movable end of the fixed block is enable to stretch out outside the second side plate of capping And shrink back to second side plate, which is set to second movable end.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, which is located at the first side in the first movable end End edge in plate forms one first stopper section, which is located at the formation of the end edge in the second side plate 1 the in the second movable end Two stopper sections.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, the reseting elastic element is torque spring, should Second pivot joint end torsion in conjunction with any one or more in the gear of the first pivot joint end, the fixed block of briquetting Power spring connects the peripheral wall of the capping.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, the reseting elastic element is compressed spring, should Either one or two of both first movable end of briquetting and the second movable end of the fixed block are in conjunction with the compression bullet Spring connects the peripheral wall of the capping.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, the reseting elastic element is torque spring, institute It states torque spring and is sheathed on the pivot column, the torque spring both ends are separately connected the end plate and the gear.

In the rack-and-pinion capping unlocking mechanism of article shading curtain as described above, the reseting elastic element be it is multiple, wherein two The reseting elastic element is compressed spring, remaining described reseting elastic element is torque spring, the first movable end of the briquetting Both portion and second movable end of the fixed block connect the peripheral wall of the capping respectively in connection with a compressed spring, each described Gear connects the end plate in conjunction with a torque spring.

The attainable beneficial functional of the utility model is at least as follows:

1, structure is simplified: the utility model rack-and-pinion covers unlocking mechanism and passes through briquetting, fixed block, gear and Flexible Reset The simplification composite construction of element, wherein briquetting and fixed block are revolvably mounted on the different two sides of capping, gear installing respectively In in capping, and the first tooth-strip part of gear engagement connection briquetting and the second tooth-strip part of the fixed block and interlock, reset Elastic element provides reseting elasticity, therefore has inexpensive and easy for assembly and other effects.

2, ease-to-operate and laborsaving: from the above, the briquetting of the rack-and-pinion capping unlocking mechanism of the utility model and solid Determine the gearing between block, is engaged and linked by the first tooth-strip part of gear and briquetting and the second tooth-strip part of the fixed block, and Reseting elastic element provides reseting elasticity, so that rack-and-pinion capping unlocking mechanism is had locking and the unlocking function of gearing property, has Good ease-to-operate, and rapid operation and other effects.

The utility model rack-and-pinion covers in unlocking mechanism, when can be further also one using the gear, the tooth Wheel includes the different first gear portion and second gear portion of diameter, and first gear portion and second gear portion are coaxially disposed, the briquetting The first tooth-strip part engagement connect the first gear portion, the fixed block the second tooth-strip part engagement connect the second gear portion；Or Person, when the gear is two, the two gear intermeshings, and the diameter of two gears is different, in two gears The one gear engagement connects the first tooth-strip part of the briquetting, and another gear engagement connects the second rack gear of the fixed block Portion.Make as a result, by the transmission in the first gear portion and second gear portion of differential diameter in gear between briquetting and fixed block, or Person generates the effect of differential by the transmission of two gears of differential diameter between briquetting and fixed block.

Detailed description of the invention

Fig. 1 is that the first preferred embodiment of the rack-and-pinion capping unlocking mechanism of the utility model article shading curtain is installed in capping Floor map.

Fig. 2 is that the second preferred embodiment of the rack-and-pinion capping unlocking mechanism of the utility model article shading curtain is installed in capping Floor map.

Fig. 3 is that the third preferred embodiment of the rack-and-pinion capping unlocking mechanism of the utility model article shading curtain is installed in capping Floor map.

Fig. 4 is that rack-and-pinion shown in Fig. 1 covers the reset that torque spring pattern is added in the first preferred embodiment of unlocking mechanism The floor map of elastic element.

Fig. 5 is that the capping unlocking mechanism of the utility model article shading curtain is applied to the schematic top plan view of article shading curtain.

Fig. 6 is that the plane that rack-and-pinion shown in Fig. 1 covers when the briquetting in the first preferred embodiment of unlocking mechanism is pressed is shown It is intended to.

Fig. 7 is that the plane that rack-and-pinion shown in Fig. 2 covers when the briquetting in the second preferred embodiment of unlocking mechanism is pressed is shown It is intended to.

Fig. 8 is that the plane that rack-and-pinion shown in Fig. 3 covers when the briquetting in the preferred embodiment of unlocking mechanism third is pressed is shown It is intended to.

Description of symbols:

A article shading curtain

A1 cord central siphon A2 cord

10 12 accommodating spaces of capping

13 peripheral wall, 14 first side plate

141 first 142 first pivoting portions of perforation

The perforation of 15 second side plates 151 second

152 second pivoting portion, 16 end plate

20 rack-and-pinions cover unlocking mechanism

21 briquettings 211 first are pivotally connected end

212 first movable end, 213 first tooth-strip part

214 first stopper sections

22 fixed blocks 221 second are pivotally connected end

222 second movable end, 223 second tooth-strip part

224 second stopper sections

23A, 23B, 23C, 24D gear

230 gear parts

231 first gear portion, 232 second gear portion

24A, 24B reseting elastic element

25 pivot columns.

Specific embodiment

The preferred embodiment for cooperating attached drawing and the utility model below, it is to reach to make a reservation in fact that the utility model, which is further described, The technological means taken with novel purpose.

As shown in Figure 1, a preferred embodiment of its rack-and-pinion capping unlocking mechanism 20 for disclosing the utility model article shading curtain The schematic diagram being installed in the capping 10 of the cord central siphon of article shading curtain.The capping 10 is the lid of a hollow form, the capping 10 A center line is defined, which corresponds to the central axis of cord central siphon, and an opening is formed in the capping 10 towards the center The accommodating space 12 of one end of line, the capping 10 have in 12 periphery of accommodating space along circular one week of the center line winding Wall 13.

In aforementioned capping 10, the peripheral wall 13 includes one first side plate 14 and one second side plate 15, the first side plate 14 and The adjacent connection of second side plate 15, the first side plate 14 and the second side plate 15 can be vertical connection, alternatively, the first side plate 14 and second side Plate 15 can be ramp interface, which has the one of the first side plate 14 of connection and the first side plate 15 relative to the other end of opening End plate 16 is equipped with one first perforation 141 of connection accommodating space 12 in first side plate 14, is equipped with connection accommodating in the second side plate 15 One second perforation 151 in space 12, first perforation 141 have a first pivoting portion far from a side of the second perforation 151 142, which has a second pivoting portion 152 far from a side of the first perforation 141.In this preferred embodiment, First side plate 14 is located at the top of the peripheral wall 13 of capping 10.

As shown in Figures 1 to 4, rack-and-pinion capping unlocking mechanism 20 includes a briquetting 21, a fixed block 22, at least a tooth Take turns 23A, 23B, 23C, 23D and at least reseting elastic element 24A, 24B, in which:

As shown in Figures 1 to 4, the briquetting 21 and the fixed block 22 are revolvably mounted on the adjacent two sides of the capping 10 respectively The first side plate 14 and the second side plate 15 in, wherein the first side plate 14 that the briquetting 21 can screw out the capping 10 is outer and screw in the In side plate 14, which can screw out outside the second side plate 15 of the capping 10 and screw in the second side plate 15, the briquetting 21 With one first tooth-strip part 213 protruded into the capping 10, which has one second rack gear protruded into the capping 10 Portion 223.In this preferred embodiment, which is located at the top of the peripheral wall 13 of the capping 10, and then group is set the briquetting 21 In the first side plate 14 of the capping 10.

As shown in Figures 1 to 4, in this preferred embodiment, the side of the briquetting 21 is one first pivot joint end 211, should Briquetting 21 is located in the first perforation 141 of the first side plate 14 for group, which is pivotally connected the first pivot with the first pivot joint end 211 Socket part 142, the briquetting 21 are one first movable end 212 relative to the other side of the first pivot joint end 211, which can be around First perforation 141 sides first pivoting portion 142 rotate, enable the briquetting 21 the first movable end 212 protrude cover 10 The first side plate 14 outside, and the briquetting 21 can be pressed and shrink back to the first side plate 14, and first tooth-strip part 213 is set to the One movable end 212.The end edge that first movable end 212 is located in the first side plate 14 can also form one first stopper section 214, To limit.

As shown in Figures 1 to 4, in this preferred embodiment, the side of the fixed block 22 is one second pivot joint end 221, The fixed block 22 is located in the second perforation 151 of the second side plate 15 for group, which is pivotally connected with the second pivot joint end 221 Second pivoting portion 152, the fixed block 22 are one second movable end 222 relative to the other side of the second pivot joint end 221, this is solid Determining block 22 can rotate around the second pivoting portion 152 of the second 151 sides of perforation, make the second movable end 222 of the fixed block 22 It can stretch out outside the second side plate 15 of capping 10 and shrink back to the second side plate 15, it is living that second tooth-strip part 223 is set to second Moved end portion 222.The end edge that second movable end 222 is located in the second side plate 15 can also form one second stopper section 224, to Limit.

As shown in Figure 1 to Figure 3, described gear 23A, 23B, 23C, 23D are hubbed at the appearance of the capping 10 in conjunction with a pivot column 25 In 12 between emptying, the first tooth-strip part 213 that at least one gear 23A, 23B, 23C, 23D engagement connects the briquetting 21 is solid with this Determine the second tooth-strip part 223 of block 22 and interlocks.

Embodiment as shown in Figure 1 to Figure 2, when described gear 23A, 23B be one when, first tooth-strip part 213 with should Second tooth-strip part 223 all engages connection with the gear 23A, 23B, the briquetting 21 and the fixed block 22 can pass through gear 23A, 23B, first tooth-strip part 213 and second tooth-strip part 223 are engaged and are interlocked.

In aforementioned, the first preferred embodiment of rack-and-pinion capping unlocking mechanism as shown in Figure 1, gear 23A has a tooth Wheel portion 230, the first tooth-strip part 213 of the briquetting 21 is engaged with 223 Heterogeneous Permutation of the second tooth-strip part of the fixed block 22 to be connect The gear part 230.

Second preferred embodiment of rack-and-pinion capping unlocking mechanism as shown in Figure 2, gear 23B include a first gear portion 231 and a second gear portion 232, the first gear portion 231 and the second gear portion 232 are coaxially disposed, and the first gear portion 231 diameter is different with the diameter in the second gear portion 232, and the first tooth-strip part 213 engagement of the briquetting 21 connects first tooth The second tooth-strip part 223 engagement of wheel portion 231, the fixed block 22 connects the second gear portion 232.First gear portion is utilized as a result, 231 diameter is different with the diameter in the second gear portion 232, makes the first tooth for passing through gear 23 between briquetting 21 and fixed block 22 The transmission in wheel portion 231 and second gear portion 232 and the effect for generating differential.

As shown in figure 4, two described gear 23C, 23D are adjacent to be hubbed at the capping when described gear 23C, 23D are two It in 10 and is intermeshed, the gear 23C engagement of one in two described gear 23C, 23D connects the first tooth-strip part of the briquetting 21 213, another gear 23D then engage the second tooth-strip part 223 for connecting the fixed block 22.Two described gear 23C, 23D can be Diameter is equal or diameter is different, when the diameter of two described gear 23C, 23D is different, passes through between the briquetting 21 and fixed block 22 The transmission of gear 23C, 23D of two differential diameters, can also generate the effect of differential.As shown in Figures 1 to 4, the Flexible Reset Element 24A, 24B are installed in the capping 10, and described reseting elastic element 24A, 24B connect the gear 23A, 23B, 24C, Any one or more in 24D, the briquetting 21 and 22 three of the fixed block, and reseting elasticity can be provided, cover the rack-and-pinion Unlocking mechanism 20 has locking and the unlocking function of gearing property.

As shown in Figure 6 to 8, it in aforementioned, when the first movable end 212 of briquetting 21 is pressed and shrinks back to the first side plate When 14 inside, by at least one gear 23A, 23B, 24C, 24D, the briquetting 21 the first tooth-strip part 213 and the fixed block 22 the second tooth-strip part 223 is engaged and linked, and the flexible deformation of an at least reseting elastic element 24A, and can drive fixation Second movable end 222 of block 22 is shunk back to the second side plate 15, reseting elastic element 23A flexible deformation and accumulate elasticity Energy；When discharging briquetting 21, pass through the second of at least one gear, the first tooth-strip part 213 of the briquetting and the fixed block 22 Tooth-strip part 223 is engaged and linked, and an at least reseting elastic element 24A offer reseting elasticity drive, make the briquetting 21 The first movable end 212 protrusion capping 10 the first side plate 14 outside reset, the second movable end 222 of the fixed block 22 also from Outside dynamic the second side plate 15 for protruding the capping 10.

As shown in Figure 1, Figure 2 and Figure 3, described in the preferred embodiment of the utility model rack-and-pinion capping unlocking mechanism Reseting elastic element 24A can be one or two compressed spring, wherein the first movable end 212 of the briquetting 21 is fixed with this Either one or two of 222 the two of the second movable end of block 22 connects the peripheral wall of the capping 10 in conjunction with the compressed spring 13。

The utility model rack-and-pinion covers in unlocking mechanism, and the reseting elastic element 24B can be one or two torsion Spring, the first pivot joint end 211 of the briquetting 21 and the second of the fixed block 22 are pivotally connected any of 221 the two of end or two A peripheral wall (not shown) that the capping 10 is connected in conjunction with the torque spring.

In a preferred embodiment of the utility model rack-and-pinion capping unlocking mechanism, the reseting elastic element 24B can For torque spring, the torque spring is sheathed on the pivot column 25, the torque spring both ends be separately connected the end plate 16 with it is described Gear 23A, 23B, 24C, 24D.

As shown in figure 4, in the preferred embodiment of the utility model rack-and-pinion capping unlocking mechanism, the Flexible Reset member Part 24A, 24B are multiple, wherein the two reseting elastic element 24A are compressed spring, remaining described reseting elastic element 24B is Torque spring, the first movable end 212 of the briquetting 21 and 222 the two of the second movable end of the fixed block 22 are respectively in connection with one The compressed spring connects the peripheral wall 13 of the capping 10, and each torque spring is sheathed on the pivot column 25, each tooth It takes turns 23A and connects the end plate 16 in conjunction with a torque spring.

In a preferred embodiment of the utility model rack-and-pinion capping unlocking mechanism, the reseting elastic element can be more A, the reseting elastic element is all torque spring, and the first of the briquetting 21 is pivotally connected the second pivot of end 211, the fixed block 22 Connect the week that end 221 connects the capping 10 at least one described gear 23A, 23B, 24C, 24D respectively in connection with the torque spring Wall 13.

As shown in figure 5, when the rack-and-pinion capping unlocking mechanism 20 of the utility model article shading curtain is applied to article shading curtain, the rack gear Formula capping unlocking mechanism 20 is mounted on the end of the cord central siphon A1 of article shading curtain A by capping 10.When article shading curtain A be assembled in it is motor-driven When the rear material-putting space of the car body of vehicle, after being mounted on car body respectively with the capping 10 at the both ends cord central siphon A1 of article shading curtain A In the preset group-connecting groove in the two sidewalls of material-putting space, each capping 10 is blocked by the fixed block 22 that rack-and-pinion covers unlocking mechanism 20 It is buckled in the group-connecting groove of the side wall of car body and locks, be locked in cord central siphon A1 between the two sidewalls of rear material-putting space of car body.

As user article shading curtain A to be removed, under the cord A2 collapse state of article shading curtain A, user is from cord central siphon Briquetting 21 is pressed in the capping 10 of the side A1 passes through the gear 23A, 23B, 24C, 24D, the briquetting as shown in Figure 6 to 8 Being engaged and linked between the equal components of the second tooth-strip part 223 of 21 the first tooth-strip part 213 and the fixed block 22, and at least one resets The flexible deformation of elastic element 24A, and the second movable end 222 of fixed block 22 is driven to shrink back to capping 10, user is The two sidewalls of cord central siphon A1 from the rear material-putting space of car body can be removed.

By preceding description it is found that the utility model rack-and-pinion capping unlocking mechanism can be rotated respectively by briquetting and fixed block Ground is mounted on the different two sides of capping, and gear is installed in capping, and gear is separately connected the first tooth-strip part of briquetting and fixes with this Second tooth-strip part of block is engaged and linked, and reseting elastic element provides reseting elasticity etc., makes the capping unlock of the utility model rack-and-pinion Mechanism by briquetting, fixed block, gear and reseting elastic element simplification composite construction, therefore have low cost with it is easy for assembly And other effects.Meanwhile when rack-and-pinion capping unlocking mechanism is applied in article shading curtain, which covers the briquetting of unlocking mechanism and solid Determine the gearing between block, is that company is engaged with gear three with the second tooth-strip part of the fixed block by the first tooth-strip part of briquetting Dynamic and reseting elastic element provides reseting elasticity, and rack-and-pinion capping unlocking mechanism is made to have locking and the unlock function of gearing property Can, there is good ease-to-operate, and rapid operation and other effects.

The above is only the preferred embodiment of the utility model, not does in any form to the utility model Limitation, although the utility model has been disclosed in the preferred embodiments as above, is not intended to limit the utility model, any to be familiar with Professional and technical personnel, in the range of not departing from technical solutions of the utility model, when in the technology using the disclosure above Hold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility model Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still It is within the scope of the technical solutions of the present invention.

Claims (10)

1. a kind of rack-and-pinion of article shading curtain covers unlocking mechanism, it is used to be installed in the capping of the cord central siphon end of article shading curtain In, form accommodating space of the opening towards axial one end in the peripheral wall of the capping, the peripheral wall have adjacent the first side plate with Second side plate, which is characterized in that

It is equipped with one first perforation for being connected to the accommodating space in first side plate of the capping, is equipped in second side plate and is connected to the appearance One second perforation between emptying, this first is perforated and has a first pivoting portion far from biperforate a side, this second is worn Hole has a second pivoting portion far from a side of first perforation；

The rack-and-pinion covers unlocking mechanism and includes a briquetting, a fixed block, at least a gear and an at least reseting elastic element, The briquetting and the fixed block are revolvably mounted on the first perforation of the capping and the second perforation, the briquetting respectively can screw out the envelope First side plate of lid is outer and screws in the first side plate, which can screw out outside the second side plate of the capping and screw in the second side plate Interior, which has one first tooth-strip part protruded into the capping, which has one second rack gear protruded into the capping Portion, the gear are hubbed in the accommodating space of the capping, and at least one gear engagement connects the first tooth-strip part of the briquetting With the second tooth-strip part of the fixed block and interlock, the reseting elastic element is installed in the capping, and Flexible Reset member Part connects any one or more in the gear, the briquetting and the fixed block, and can provide reseting elasticity, seals the rack-and-pinion Lid unlocking mechanism has locking and the unlocking function of gearing property.

2. the rack-and-pinion of article shading curtain according to claim 1 covers unlocking mechanism, which is characterized in that the gear is one A, the gear has a gear part, which engages with the second tooth-strip part Heterogeneous Permutation and connect the gear part.

3. the rack-and-pinion of article shading curtain according to claim 1 covers unlocking mechanism, which is characterized in that the gear is one A, the gear includes a first gear portion and a second gear portion, and the first gear portion and the second gear portion are coaxially disposed, And the diameter in the first gear portion is different with the diameter in the second gear portion, the first tooth-strip part of briquetting engagement connection this first The second tooth-strip part engagement of gear part, the fixed block connects the second gear portion.

4. the rack-and-pinion of article shading curtain according to claim 1 covers unlocking mechanism, which is characterized in that the gear is two A, two gears are adjacent to be hubbed in the capping and is intermeshed, and the gear engagement connection of one in two gears should First tooth-strip part of briquetting, another gear engagement connect the second tooth-strip part of the fixed block.

5. the rack-and-pinion of article shading curtain according to any one of claim 1 to 4 covers unlocking mechanism, which is characterized in that should The peripheral wall of capping has the end plate of connection the first side plate and the first side plate relative to the other end of opening, and first perforation is separate Biperforate a side has a first pivoting portion, which has one second pivot joint far from a side of the first perforation Portion；

The gear combines a pivot column to be hubbed at the end plate；

The side of the briquetting is one first pivot joint end, which is pivotally connected first pivoting portion, the briquetting phase with the first pivot joint end The other side for the first pivot joint end is one first movable end, which can rotate around the first pivoting portion, make this First movable end of briquetting can protrude outside the first side plate of capping, and the briquetting can be pressed and shrink back to first side plate Interior, which is set to first movable end；

The side of the fixed block is one second pivot joint end, which is pivotally connected second pivoting portion with the second pivot joint end, this is solid The other side for determining block relative to the second pivot joint end is one second movable end, which can revolve around the second pivoting portion Turn, the second side plate for enabling the second movable end of the fixed block to stretch out capping is outer and shrink back to second side plate, this Two tooth-strip parts are set to second movable end.

6. the rack-and-pinion of article shading curtain according to claim 5 covers unlocking mechanism, which is characterized in that the briquetting is living in first Moved end portion is located at the end edge in the first side plate and forms one first stopper section, which is located at the second side plate in the second movable end Interior end edge forms one second stopper section.

7. the rack-and-pinion of article shading curtain according to claim 5 covers unlocking mechanism, which is characterized in that the Flexible Reset member Part is torque spring, and the first pivot joint end of the briquetting, the second of the fixed block are pivotally connected any of end and the gear Or torque spring described in multiple combinations connects the peripheral wall of the capping.

8. the rack-and-pinion of article shading curtain according to claim 5 covers unlocking mechanism, which is characterized in that the Flexible Reset member Part is compressed spring, either one or two of both second movable ends of the first movable end of the briquetting and the fixed block The peripheral wall of the capping is connected in conjunction with the compressed spring.

9. the rack-and-pinion of article shading curtain according to claim 5 covers unlocking mechanism, which is characterized in that the Flexible Reset member Part is torque spring, and the torque spring is sheathed on the pivot column, the torque spring both ends be separately connected the end plate with it is described Gear.

10. the rack-and-pinion of article shading curtain according to claim 5 covers unlocking mechanism, which is characterized in that the Flexible Reset Element is multiple, wherein two reseting elastic elements are compressed spring, remaining described reseting elastic element is torque spring, should Both first movable end of briquetting and second movable end of the fixed block connect the envelope respectively in connection with a compressed spring The peripheral wall of lid, each gear connect the end plate in conjunction with a torque spring.