CN202664594U - Lock shaft improved structure of hair straightener closing-clamping lock - Google Patents

Abstract

The utility model relates to a lock shaft improved structure of a hair straightener closing-clamping lock. A hair straightener comprises a long upper clip and a long lower clip, one end of the upper clip and one end of the lower clip are locked with each other through a lock shaft, a left circular cavity of the lower clip is horizontally provided with a through hole in the direction facing towards a right circular cavity, the lock shaft is coaxially installed inside the through hole, the right side surface of a lock shaft end cover is protruded to form at least two positioning bones along the axial direction of the lock shaft, the right end of the lock shaft is provided with an annular through groove which is vertical to the axial direction of the lock shaft, and a U-shaped locked spring is pressed inside the annular through groove. The lock shaft with the improved structure can be dismantled repeatedly and is not damaged when in dismantling; a limiting structure of the lock shaft is relatively simplified, so that the production cost is reduced; and the positioning bone structures of the lock shaft reduce the requirement for materials, so that the forming is relatively easy, and the opening problem of the hair straightener can be well solved.

Description

A kind of heater of hair straightener is closed the lock shaft structure-improved of folder lock

Technical field

The utility model relates to the hair waving appliance field, and what relate in particular to a kind of heater of hair straightener closes the folder lock construction.

Background technology

Heater of hair straightener is again electric clamping plate, the popular clamping plate that cry, common heater of hair straightener is V-structure, comprise and be upper and lower two microscler clamping plate that " V " type is arranged, one end of two clamping plate is hinged by lock shaft, mutually folding of the other end correspondingly on the relative medial surface of two clamping plate folding ends is arranged a pair of heating board.

During work, with until the upper and lower folder of device open, make its heating by the current flow heats heating board, when treating that the heating board surface temperature reaches 170 ° of C～180 ° C, hair is put between two heating boards of heater of hair straightener, then the closed hair that clamps of upper and lower folder, move heater of hair straightener along the hair direction, by heating board hair is heated, softens, and then cooling, to reach the purpose of straight hair.

Existing a kind of heater of hair straightener is closed the folder lock construction, on, lower folder one end is sealed by the lock shaft of plastics, lock shaft length direction and upper, lower folder length direction is vertical, make a vertical cross-section along the lock shaft axis, on, lower folder is on two openings, lower relative " ∏ " shape, two vertical section two of being close to lower folder of upper folder are vertically pressed from both sides in the upper shed under the section insertion, be outside one's consideration and turn in the vertical section of a lower folder top 90, left with lower folder horizontal segment, right two ends surround a left side, right two openings, on, offer through hole on vertical section of lower folder, the coaxial lock shaft of packing in the through hole, lock shaft can be traversing vertically in through hole.

Lock shaft and upper and lower folder left side vertically between the section structure by a pair of location bone and locating slot limit and relatively rotate, when lock shaft pushes, the location bone all has with the locating slot of upper and lower folder and cooperates, and upper and lower folder and lock shaft can not rotate mutually, and heater of hair straightener is in blocking; When lock shaft was extracted, the location bone only had with the locating slot of lower folder and cooperates, and upper folder can rotate around the lock shaft axle center, and heater of hair straightener is in unlocking condition.

The lock shaft right-hand member is positioned at the right cylindrical cavity of lower folder, utilizes spacing shim of self-tapping screw locking on the lock shaft right side, and the size of spacing shim is greater than through-hole aperture, the extreme position during with the extracting of restriction lock shaft; The lock shaft left end is with end cap, and the size of end cap is greater than through-hole aperture, the extreme position during with the pushing of restriction lock shaft.

The existing folder lock construction that closes has following shortcoming:

1, lock shaft is working of plastics, and self-tapping screw is metalwork, when repeatedly dismantling self-tapping screw and lock shaft, is easy to produce the stripped thread phenomenon, and lock shaft is to tear open once just badly basically when reprocessing, and has further improved maintenance cost;

2, lock shaft and upper and lower folder left side vertically between the section structure by a pair of location bone and locating slot limit and relatively rotate, when sealed, the location bone rotates for the upper folder of restriction, and the trailing flank of itself and lock shaft axially parallel is stress surface, and lifting surface area is little, common plastics deforms easily, very high to material requirements, the moulding trouble, even but like this, lock shaft still is out of shape in long-term the use easily, cracking, the problem that causes heater of hair straightener " to open one's mouth ".

The utility model content

Technical problem to be solved in the utility model is to provide a kind of being convenient to repeatedly to dismantle, and reprocesses Shi Buhui because dismounting causes damage of components, and requires the heater of hair straightener of relative reduce to close the lock shaft structure-improved of folder lock to part material.

The utility model is achieved through the following technical solutions:

A kind of heater of hair straightener is closed the lock shaft structure-improved of folder lock, and described heater of hair straightener comprises microscler upper folder and lower folder, and upper and lower folder one end is sealed by lock shaft, and the lock shaft axis is vertical with upper and lower folder length direction,

On the vertical cross-section at lock shaft axis place, upper and lower folder is two upper and lower relative " ∏ " shapes of opening, and two vertical sections of upper folder are inserted in the upper shed of lower folder, and the lateral surface of the vertical section of upper folder is close to the vertically medial surface of section of lower folder,

A lower folder vertically section top 90 is outside one's consideration and is turned over, and surrounds two openings respectively towards left and right cylindrical cavity with the left and right two ends of lower folder horizontal segment,

Offer through hole from the left cylindrical cavity of lower folder level at upper and lower folder vertical section of right cylindrical cavity,

The coaxial lock shaft of packing in the through hole, lock shaft left end end cap is positioned at the left cylindrical cavity of lower folder, and right-hand member is positioned at the right cylindrical cavity of lower folder, and lock shaft can be traversing vertically in through hole,

It is characterized in that:

By the location bone of lock shaft end cap right flank along at least two strips of lock shaft axial projections, locate the bone bottom and join with lock shaft, offer vertically the locating slot of coupling on the through hole of the vertical section in upper and lower folder left side, leave radial clearance between locating slot and the location bone,

Axially offer annular through groove one at the lock shaft right-hand member perpendicular to lock shaft, be pressed into the button spring of " U " shape in the annular through groove, stretch out outside the annular through groove at button spring two ends,

Lock shaft has two operating positions:

When lock shaft is pushed, the lower left cylindrical cavity right-hand member bottom that presss from both sides of lock shaft end cap contact, the location position of bone is in the through hole of the vertical section in upper and lower folder left side, and lock shaft is in the locking position, and upper and lower folder is closed;

When lock shaft is extracted, the right cylindrical cavity left end of folder bottom under the contact of button spring, the location bone vertically withdraws from the through hole of section on the left of folder, is positioned at the through hole of the vertical section in lower folder left side, and lock shaft is in unlock position, and upper folder can be around the rotation of lock shaft axle center, and the relatively lower folder of upper folder is opened.

The utilization of this structure-improved is clamped on the traversing extreme position left that button spring on the lock shaft right-hand member substitutes spacing shim, limits lock shaft, the button spring is because the elastic shrinkage of himself is clamped in the annular through groove of lock shaft, annular through groove make-up spring plays position-limiting action, and the button spring is again to the traversing position-limiting action that plays of the left-hand of lock shaft.Not only dismounting is very convenient for the structure of button spring and annular through groove, and also can not destroy lock shaft when dismantling, and is beneficial to the reduction maintenance cost.

In addition, adopt the position limiting structure restriction of many location bones to relatively rotate between lock shaft and the upper and lower folder, the stress surface of location bone is multiplied, greatly reduce the requirement to the lock shaft material, even common material also can satisfy the requirement that is subjected to force intensity, lock shaft is not yielding, and heater of hair straightener is not easy " opening one's mouth ".

Further again, location bone quantity is 3, and the first and the 3rd location position of bone is in the both sides, front and back of lock shaft, and the second location position of bone is in the lock shaft top, and the angle of adjacent two location bones is 90 degree.This structure makes the force dispersion of bone side, location and evenly, both having made is common plastic material, also can not damage easily.

Further again, lock shaft is plastic shaft, and is easy to process, and easy to assembly.

The beneficial effects of the utility model are:

1, lock shaft can be dismantled repeatedly, and dismounting the time can not damage, and has reduced maintenance cost;

2, the position limiting structure of lock shaft is simplified relatively, has reduced production cost;

3, the location bone structure of lock shaft has reduced the requirement to material, so that moulding is relatively easy, and lock shaft is not yielding, has well solved the problem that heater of hair straightener " is opened one's mouth ".

Description of drawings

Fig. 1 is the perspective view of heater of hair straightener

Fig. 2 is along A-A among Fig. 1 to the inside perspective view of dissecing

Fig. 3 is the enlarged diagram that the utility model closes folder lock construction circle part in Fig. 2

Fig. 4 be existing close under the folder locking lock status along A-A among Fig. 1 to the planar structure schematic diagram

Fig. 5 is the assembling schematic diagram of existing lock shaft and spacing shim

Fig. 6 is the right view of Fig. 5

Fig. 7 is the assembling schematic diagram of existing lower folder with trim

Fig. 8 is the enlarged diagram at circle position among Fig. 6

Fig. 9 be the utility model close under the folder lock construction blocking along A-A among Fig. 1 to the planar structure schematic diagram

Figure 10 be the utility model close under the folder lock construction unlocking condition along A-A among Fig. 1 to the planar structure schematic diagram

Figure 11 is lock shaft and the assembling schematic diagram of detaining spring in the utility model

Figure 12 is the right view of Figure 11

Figure 13 is the assembling schematic diagram of upper and lower folder and trim in the utility model

Figure 14, the 15 process schematic diagrames for dismounting the utility model structure

Figure 16 is for removing the schematic diagram that cooperates of lock shaft and upper and lower folder behind the trim

In Fig. 1～16: 1 is upper folder, and 2 is lower folder, and 201 is the left cylindrical cavity of lower folder, and 202 is the right cylindrical cavity of lower folder, 203 is lower folder upper shed, and 204 is positive stop, and 205 is groove of annular, and 3 is lock shaft, 301 is end cap, and 302 are the location bone, and 303 is annular through groove, and 304 is locating hole, 4 is through hole, and 5 is trim, and 501 is positioning boss, and 502 is annular protrusion, 6 are the button spring, and 7 are the dismounting through hole, and 8 is thimble, 10 is power supply architecture, and 11 is spacing shim, and 12 is self-tapping screw.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a kind of schematic perspective view of heater of hair straightener, comprises microscler upper folder 1 and lower folder 2, and the logical lock shaft 3 of upper and lower folder 1,2 one ends is sealed, and lock shaft 3 axis and upper and lower folder 1,2 length direction are vertical.On the vertical cross-section at lock shaft 3 axis places, shown in Fig. 2～3, upper and lower folder 1,2 is two upper and lower relative " ∏ " shapes of opening, two of upper folder 1 vertically press from both sides in the upper shed 203 under the section insertion, the upper folder 1 vertically lateral surface of section is close to the vertically medial surface of section of lower folder 2, being outside one's consideration and turning in 2 vertical sections tops of lower folder 90, surrounds two openings respectively towards left and right cylindrical cavity 201,202 with the left and right two ends of lower folder 2 horizontal segments.From the left cylindrical cavity 201 of lower folder towards right cylindrical cavity 202 at upper and lower folder 1,2 vertical section upper level offered through hole 4, the coaxial lock shaft 3 of packing in the through hole, and lock shaft left end end cap 301 is positioned at the left cylindrical cavity 201 of lower folder, right-hand member is positioned at the right cylindrical cavity 202 of lower folder, and lock shaft can be traversing vertically in through hole 4.

Existing closing in the folder lock construction, such as Fig. 5, shown in 6, locate bone 302 by lock shaft left end end cap 301 right flanks along one of lock shaft 3 axial projections, upper and lower folder 1, the locating slot that is complementary is together vertically offered in the through hole 4 of section in 2 left sides, between lock shaft 3 and the upper folder 1, between lock shaft and the lower folder 2 only the location bone locating slot structure by a pair of mutual coupling limit and relatively rotate.When sealed, location bone 302 rotates in order to limit upper folder 1, the trailing flank of itself and lock shaft 3 axially parallels is stress surface, lifting surface area is little, and common material deforms easily, and is very high to material requirements, therefore moulding bothers, even but like this, still in long-term the use, be out of shape easily, ftracture the problem that causes heater of hair straightener " to open one's mouth ".

Lock shaft 3 right-hand members are positioned at the right cylindrical cavity 202 of lower folder, utilize spacing shim 11 of self-tapping screw 12 locking on lock shaft 3 right sides, and such as Fig. 5, shown in 6, spacing shim 11 external diameters are greater than through hole 4 apertures, the extreme position during with the extracting of restriction lock shaft 3; Lock shaft 3 left ends are with end cap 301, and end cap 301 external diameters are greater than through hole 4 apertures, the extreme position during with the pushing of restriction lock shaft 3.Because lock shaft 3 be working of plastics, self-tapping screw 12 is metalwork, when being dismounted for multiple times self-tapping screw 12 and lock shaft 3, is easy to produce the stripped thread phenomenon, and lock shaft 3 is to tear open once just badly basically when reprocessing, and maintenance all will be changed a new lock shaft at every turn.

Be coated with a trim 5 on the right cylindrical cavity 202 of lower folder, falling the annular protrusion 502 of groove 205 and trim 5 left end ends by the annular of the right cylindrical cavity of lower folder 202 bottoms between the two is installed together, shown in Fig. 7,8, this fit structure is complicated, adding need to increase the back-off mould man-hour, and production cost is increased greatly, can only take off trim 5 by the mode of destroying trim 5 during dismounting, reprocess and once will scrap a trim 5, maintenance cost is high.

In a kind of preferred structure of the present utility model, by the location bone 302 of lock shaft end cap 301 right flanks along 3 strips of lock shaft 3 axial projections, the first and the 3rd location position of bone is in the both sides, front and back of lock shaft 3, the second location position of bone is in lock shaft 3 tops, the angle of adjacent two location bones 302 is 90 degree, as shown in figure 12.Bone 302 bottoms, location and lock shaft 3 join, and offer vertically the locating slot of coupling on the through hole 4 of the vertical section in upper and lower folder 1,2 left side, leave radial clearance between locating slot and the location bone 302.

Axially offer annular through groove 303 one at the lock shaft right-hand member perpendicular to lock shaft 3, be pressed into the button spring 6 of " U " shape in the annular through groove 303, stretch out outside the annular through groove 303 at button spring 6 two ends, such as Figure 11, shown in 12.

Cover circular trim 5 on the opening of the right cylindrical cavity 202 of lower folder, trim 5 external diameters are less than or equal to right cylindrical cavity 202 internal diameters of lower folder, offer locating hole 304 on the lock shaft 3 right-hand member end faces, the positioning boss 501 that projection is complementary on the trim 5 left side correspondence positions, positioning boss 501 setting-ins enter in the locating hole 304, locating hole 304 and positioning boss 501 are " Φ " shape of mutual coupling, on the one side ring shape sidewall of locating hole 304 to inner process together radially straight wall, leave the gap on Zhi Bi end and the annular sidewall, as shown in figure 12.

A plurality of positive stops 204 are arranged along circular interval, bottom surface in the left end of the right cylindrical cavity 202 of lower folder bottom, and the distance between positive stop 204 and the trim 5 equals the positioning groove length on the through hole 4 vertically section of folder 1 left side, such as Figure 13, shown in 16.

Dismounting through hole 7 is vertically offered on the section junction in right side at upper and lower folder 1,2, and dismounting through hole 7 is communicated with the right cylindrical cavity 202 of lower folder and lower folder upper shed 203, and dismounting through hole 7 is positioned at lock shaft 3 rear sides, as shown in figure 16.

Lock shaft 3 has two operating positions:

When lock shaft 3 was pushed, lock shaft end cap 301 contacted left cylindrical cavity 201 right-hand members of lower folder bottom, and location bone 302 is positioned in the through hole 4 of the vertical section in upper and lower folder 1,2 left side, and lock shaft 3 is in the locking position, upper and lower folder 1,2 closure, as shown in Figure 9;

When lock shaft 3 is extracted, right cylindrical cavity 202 left ends of the lower folder of button spring 6 contacts bottom, location bone 302 withdraws from from the through hole 4 of the vertical section in upper folder 1 left side, be positioned at the vertically through hole 4 of section of lower folder 2 left sides, lock shaft 3 is in unlock position, upper folder 1 can be around the rotation of lock shaft 1 axle center, and the relatively lower folder 2 of upper folder 1 is opened, as shown in figure 10.

Upper and lower folder 1,2 is hollow structure, and its inside is divided into a plurality of hollow chamber by a plurality of floors, when dismantling the power supply architecture 10 of lower its afterbody from heater of hair straightener, and lower 203 direct and outside connections of folder upper shed.Therefore, this structure improved trim 5 is fixed on the lock shaft 3 by the interference fit of self and lock shaft 3, when the folder lock construction is closed in the needs dismounting, at first, utilize a thimble 8 from inserting in the dismounting through hole 7 with the lower folder upper shed 203 of exterior, trim 5 is pushed away from lock shaft 3, as shown in figure 14, the dismounting of trim 5 can be easily realized, and trim 5 can not be destroyed; Then from the right cylindrical cavity 202 of lower folder, take off the button spring 6 of spiral-lock on lock shaft 3, just can from the left cylindrical cavity 201 of lower folder, withdraw from lock shaft 3, as shown in figure 15, during assembling the action just in time opposite, dismounting is all very convenient.

The utilization of this structure-improved is clamped on the traversing extreme position left that button spring 6 on lock shaft 3 right-hand members substitutes spacing shims 11, limits lock shaft 3, button spring 6 is because the elastic shrinkage of himself is clamped in the annular through groove 303 of lock shaft 3, annular through groove 303 make-up springs 6 play position-limiting action, and button spring 6 is again to the traversing position-limiting action that plays of the left-hand of lock shaft 3.Not only dismounting is very convenient for the mounting structure of button spring 6 and annular through groove 303, and also can not destroy lock shaft 3 during dismounting, is beneficial to the reduction maintenance cost.

In addition, this structure-improved can also utilize contacting of positive stop 204 and trim 5 to cooperate the auxiliary left-hand that limits lock shaft 3 traversing, and the distance between positive stop 204 and the trim 5 equals the vertically positioning groove length on the through hole 4 of section of folder 1 left side.

In addition, lock shaft 3 and upper and lower folder 1,2 between adopt the position limiting structure restriction of 3 location bones 302 to relatively rotate, as shown in figure 12, the stress surface of location bone is multiplied, greatly reduce the requirement to the lock shaft material, even common material also can satisfy the requirement that is subjected to force intensity, lock shaft is not yielding, and heater of hair straightener is not easy " opening one's mouth ".

Claims (3)

1. a heater of hair straightener is closed the lock shaft structure-improved that folder is locked, and described heater of hair straightener comprises microscler upper folder (1) and lower folder (2), and upper and lower folder (1, a 2) end is sealed by lock shaft (3), and lock shaft (3) axis and upper and lower folder (1,2) length direction are vertical,

On the vertical cross-section at lock shaft (3) axis place, upper and lower folder (1,2) is two upper and lower relative " ∏ " shapes of opening, and two vertical sections of upper folder (1) are inserted in the lower folder upper shed (203), upper folder (1) the vertically lateral surface of section is close to the vertically medial surface of section of lower folder (2)

Lower folder (a 2) vertically section top 90 is outside one's consideration and is turned over, and surrounds two openings respectively towards left and right cylindrical cavity (201,202) with the left and right two ends of lower folder (2) horizontal segment,

Offer through hole (4) towards right cylindrical cavity (202) in vertical section upper level of upper and lower folder (1,2) from the left cylindrical cavity (201) of lower folder,

The coaxial lock shaft of packing into (3) in the through hole, lock shaft left end end cap (301) is positioned at the left cylindrical cavity of lower folder (201), and right-hand member is positioned at the right cylindrical cavity of lower folder (202), and lock shaft can be traversing vertically in through hole (4),

It is characterized in that:

By the location bone (302) of lock shaft end cap (301) right flank along at least two strips of lock shaft (3) axial projections, location bone (302) bottom joins with lock shaft (3), upper and lower folder (1,2) offer vertically the locating slot of coupling on the left of on the through hole (4) of vertical section, leave radial clearance between locating slot and the location bone (302)

Axially offer one annular through groove (303) at the lock shaft right-hand member perpendicular to lock shaft (3), be pressed into the button spring (6) of " U " shape in the annular through groove (303), stretch out outside the annular through groove (303) at button spring (6) two ends,

Lock shaft (3) has two operating positions:

When pushing, the lower folder of lock shaft end cap (301) contact left cylindrical cavity (201) right-hand member bottom is located bone (302) and is positioned at upper and lower folder (1 with lock shaft (3), 2) in the through hole (4) of the vertical section in left side, lock shaft (3) is in the locking position, upper and lower folder (1,2) closure;

With lock shaft (3) when extracting, the lower folder right cylindrical cavity (202) of button spring (6) contact left end bottom, location bone (302) withdraws from from the through hole (4) of the vertical section in upper folder (1) left side, be positioned at the vertically through hole (4) of section of lower folder (2) left side, lock shaft (3) is in unlock position, upper folder (1) can be around the rotation of lock shaft (1) axle center, and the relatively lower folder (2) of upper folder (1) is opened.

2. heater of hair straightener according to claim 1 is closed the lock shaft structure-improved of folder lock, it is characterized in that: described location bone (302) quantity is 3, the first and the 3rd location position of bone is in the both sides, front and back of lock shaft (3), the second location position of bone is in lock shaft (3) top, and the angle of adjacent two location bones (302) is 90 degree.

3. heater of hair straightener according to claim 1 is closed the lock shaft structure-improved of folder lock, it is characterized in that: described lock shaft (3) is plastic shaft.

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