CN218635685U - Child safety door sill - Google Patents

Abstract

The utility model provides a children's safety door fence belongs to children's door fence technical field. It has solved the current poor and unstable problem of use of children's safety door fence security. This children's safety door fence includes that fence frame and rotation connect on fence frame breast board, install lock body and lock seat respectively on the relative lateral part in fence frame and fence upper end, the locked groove has on the lock seat, the spring bolt that inserts the locked groove has on the lock body, the locked groove is located and is equipped with the domatic of relative spring bolt downside downward sloping near notch position department on the cell wall of spring bolt below, it withdraws from the locked groove to be equipped with on the lock body can drive the spring bolt part and makes the spring bolt tip be in the linkage piece of domatic top, the spring bolt can make the spring bolt tip move to withdrawing from the locked groove completely along domatic direction through upwards lifting the pulling lock seat when the spring bolt tip is in domatic top. This children's safety door fence only lifts the lock seat again after removing the linkage and just can accomplish whole unblocks for this safety lock obtains promotion by a wide margin at the security after the locking.

Description

Child safety door sill

Technical Field

The utility model relates to a belong to children's door fence technical field, relate to a door fence, in particular to children's safety door fence.

Background

The children's door fence is a simple and easy blocking device who is used for placing children room from home, and it mainly comprises the hurdle frame that is used for fixing with the wall and the breast board of rotation connection on the hurdle frame, and the breast board can rotate to open and make things convenient for us adult to pass through, often is provided with simple and easy safety lock between breast board and hurdle frame. Conventional simple and easy safety lock all comprises lock body and lock seat, the lock body is fixed on the fence frame, the spring bolt that can stretch out and draw back has on the lock body, it can supply the spring bolt male locked groove to have on the lock seat, the lock seat is fixed on the breast board, all be provided with on the lock body and drive the button in the spring bolt receipts lock body completely, only need slide button to make the spring bolt fully retract in the lock body then aim at the spring bolt position on the lock seat and loosen the button and can accomplish and lock when needs locking, also directly come the unblock through the button when the unblock.

However, as people find clever children or older children to unlock the door sill several times, the people know that the door sill can be unlocked only by sliding the button, so that the door sill is in the same nominal shape, and the button is placed at a position where the upper end face of the lock body is obvious or even provided with a note or a pattern for opening the door sill for the convenience of users, so that the children with great curiosity can try to slide, and the safety lock can be unlocked.

And current breast board is connected with the hurdle frame directly through the hinge that can automatic re-setting, and some adopt to install structures such as reset spring on the axis of rotation of breast board and make it can self return after opening. But with the use, the spring and the hinge are easy to age after long-time use, so that the reset is not smooth and is slow.

SUMMERY OF THE UTILITY MODEL

Not enough to current technique, the utility model provides a children's safety door fence. It is poor and use unstable technical problem that it was solved current children's safety door fence security.

In order to realize the purpose, the utility model adopts the technical scheme that:

the utility model provides a children's safety door fence, includes the hurdle frame and rotates the breast board of connection on the hurdle frame, install lock body and lock seat respectively on the relative lateral part in hurdle frame and breast board upper end, the locked groove has on the lock seat, have the spring bolt that inserts the locked groove on the lock body, its characterized in that, the locked groove is located the cell wall of spring bolt below and is equipped with the domatic of relative spring bolt downside downward sloping near notch position department, be equipped with on the lock body and drive the spring bolt part and withdraw from the linkage piece that the locked groove made the spring bolt tip be in domatic top, when the spring bolt tip is in domatic top the spring bolt can make the spring bolt tip remove to withdrawing from the locked groove completely along domatic direction through upwards lifting the lock seat.

When the safety door sill is in a normal locking state, the spring bolt is completely inserted into the lock groove, the end part of the spring bolt is close to the bottom of the lock groove, the lock seat is moved upwards in the up-down front-back direction at the moment, and the spring bolt and four groove walls of the lock groove form a support to limit the movement of the lock seat, namely the normal locking state; in a semi-unlocking state, if a child accidentally moves a linkage part to enable the spring bolt to partially withdraw from the lock groove, the spring bolt can be abutted against the front side groove wall and the rear side groove wall of the lock groove in the front-rear direction and is positioned in a locked state at the front side and the rear side, the lock seat is pressed downwards, the spring bolt can also be abutted against and limited to be separated from the upper side groove wall of the lock groove, only the lock seat is lifted upwards, the slope surface on the lock seat can drive the spring bolt to guide and move to further withdraw from the lock groove, and when the spring bolt completely withdraws from the lock groove, the lock seat can move back and forth, namely, the lock is unlocked; the complete unlocking moves the linkage earlier and makes the spring bolt tip be in domatic top, then lets domatic drive spring bolt withdraw from the locked groove completely through carrying and draw the lock seat and be in the complete unlocking state promptly, and this design is through such three kinds of unlocking states, can realize preventing that some kids from going to unblock this safety lock through control linkage, even the linkage is moved also can only unblock the part, and can't open the door sill of having installed this safety lock for the security of this safety lock after the locking obtains promotion by a wide margin.

In the child safety door fence, a guide inclined plane capable of being matched with the slope surface is arranged on the lower side of the end part of the lock tongue.

The direction inclined plane has on the tip of the spring bolt of this design, and the direction inclined plane is the same with domatic incline direction, and the direction inclined plane can be better when carrying the pulling lock seat along domatic direction removal make the spring bolt withdraw from the lock seat completely, and the design makes this safety lock structure more smooth and easy when the secondary unblock, improves the security when guaranteeing that the unblock is smooth and easy.

In foretell children's safety door fence, the stroke groove has been seted up to the lock body upper end, the button that the linkage just can follow the stroke groove and remove is located for inlaying in the stroke groove, the draw-in groove has been seted up to the upper end of spring bolt, the left side of draw-in groove is sealed and the right side of draw-in groove is opened, be equipped with the fixture block that the card goes into in the draw-in groove on the button, the fixture block can form with draw-in groove left side cell wall and support and the fixture block can take off from the right side uncovered department of draw-in groove and move, when the button moves left to support and lean on when supporting the left side cell wall with the stroke groove the tip of spring bolt is located domatic top.

The linkage piece of this design is actually the button, can drive the spring bolt unblock through the shift knob on the lock body, but the button of this design also can only withdraw the spring bolt half when moving leftmost extreme position along the stroke groove, the spring bolt part is retrieved and is made the tip of spring bolt be located domatic top, like this through carrying the lift lock seat can let the spring bolt further retract, thereby such secondary unblock mode can effectively avoid some clever children independently to move the button unblock safety lock and open the door sill, design the security height like this.

In foretell children's safety door fence, install base and stopper respectively on the relative lateral part of breast frame and breast board lower extreme, the base is located and has seted up the spacing groove on one side near the breast board, the upper end of spacing groove has uncovered, the one end of stopper stretches into the spacing inslot and when the breast board lifts the stopper can deviate from uncovered department, be provided with the elastic component that enables the stopper and keep stretching out the state between stopper and the breast board, and when the breast board resets the stopper can be followed the base side and removed the shrink and stretch out the card again and go into the spacing inslot when removing to the spacing inslot.

Bottom on the lateral part of breast board rotation end and between the hurdle frame still is provided with base and stopper, in the normal locking of safety lock, the stopper is inserted at the spacing inslot, the downside that the both sides cell wall of spacing groove is spacing to make the breast board rotation end can not take place the slope when the atress, let the effect of blocking of whole breast board better, need promote the lock seat when the unblock and make the safety lock unblock completely, so the breast board can drive the together lifting of stopper, the stopper lifting can break away from the upside opening department of spacing groove, rotate the breast board again and can accomplish the unblock, design the security very high like this. When the baffle plate is reset, the limiting block is abutted against the base and can be matched with the inclined plane on the base along with the gradual rotation of the baffle plate to enable the limiting block to overcome the elasticity of the elastic piece to retract, and then when the baffle plate is completely reset, the limiting block just resets to the limiting groove, namely extends out of the limiting groove again under the action of the elasticity and is clamped into the limiting groove.

In foretell children's safety door fence, the opening that can supply the people to walk through has on the fence frame, the fence frame is located open-ended wherein one side and is fixed with upper bracket and undersetting, be fixed with on the lateral part of breast board and rotate set one and rotate set two and be equipped with pivot one and pivot two respectively, pivot one pegs graft the cooperation with the upper bracket, pivot two pegs graft the cooperation with the undersetting.

In the child safety door sill, the lower support is provided with a shaft hole used for being matched with the second rotating shaft, symmetrical ramps are obliquely arranged on two sides of the shaft hole on the lower support, the highest positions of the two ramps are intersected to form a highest point, symmetrical limiting parts are protruded on two sides of the second rotating sleeve, a slope surface and an inner groove are respectively arranged on two sides of the limiting part on the second rotating sleeve, when the second rotating sleeve rotates, the slope surface and the ramps in the rotating direction can move in a mutually guiding mode to enable the second rotating sleeve to be lifted upwards, the slope surface and the ramps are kept in point contact in the rotating process, and any one inner groove can be matched with the ramps at the high points through rotation of the second rotating sleeve to enable the second rotating sleeve to be kept in an open state.

The second rotating sleeve and the lower support are supported through the rotating shaft in an initial normally closed state, meanwhile, the notch groove is in fit contact with the ramp to provide support, the slope surface and the ramp are immediately changed into point contact and can move relatively but still keep a point contact state along with the rotation of the second rotating sleeve towards one side, the second rotating sleeve can be lifted relatively due to the inclined surface matching principle as long as the slope surface and the ramp move relatively, and the contact area between the lifted second rotating sleeve and the lower support is small, so that the second rotating sleeve can rotate more smoothly. The rotating sleeve II continuously rotates along with the fact that a contact point on the rotating slope surface of the rotating sleeve II is closer to the limiting part and finally reaches the limiting part, the rotating sleeve II continuously moves upwards along the ramp by taking the limiting part as the contact point until the contact point reaches the highest point of the ramp, the rotating sleeve II is limited in the circumferential direction by the principle that the subsequent inner groove is matched with the ramp at the highest point to be clamped when the limiting part continuously rotates over the highest point, and therefore the rotating sleeve II is kept in a normally open state. The reset process needs to reset the limiting part to the state before crossing the peak with the help of external force towards reverse motion, then the original reset of the point contact state can be kept between the rotating sleeve II and the lower support under the action of gravity of the door sill or vertical downward external force of the shaft, the contact area is still small, and the reset is very smooth. The point contact in this scheme is slope and ramp surface small area contact promptly, and area of contact is very little can be regarded as point-to-point contact, and the resistance that area of contact is little produced just makes more smoothly when moving.

In the child safety door sill, a gasket is fixed at the end of the first rotating shaft, a spring is sleeved on the first rotating shaft, one end of the spring abuts against the gasket, and the other end of the spring abuts against the inner side face of the upper support.

According to the design, the spring is arranged between the upper support and the first rotating sleeve, and the effect of the design is that the first rotating sleeve can generate restoring pressure after being lifted upwards, so that the second rotating sleeve and the lower support are enabled to be matched with each other to rotate to reset, namely, the downward pressure of the reset slope is used for supplementing the gravity of the breast board.

In foretell children's safety door fence, all peg graft on the outside portion of fence frame and have the stopper, all peg graft threaded rod on the stopper and the threaded rod homoenergetic slides along the horizontal hole direction of stopper, threaded connection has the nut on the threaded rod, the nut can control the sliding distance between threaded rod and the stopper hole and form at its terminal surface and keep out through rotating.

The nut is abutted to the end face of the plug, and the telescopic length of the adjusting threaded rod is controlled by rotating the nut, so that the door frame with the design can adapt to various installation environments.

In foretell children's safety door fence, be fixed with on the tip of threaded rod and be used for leaning on the seat of leaning on in the wall that is round platform form.

When the two sides of the door frame are both walls, the threaded rod which is abutted to the seat can be connected to the nut in a threaded mode, the abutment seat can be well abutted to the wall in contact with the wall, and stability is good.

In foretell children's safety door fence, be fixed with on the tip of threaded rod be U-shaped be used for with the stair on the spacing seat of stand complex, the inboard of spacing seat has curved stress surface, the back of spacing seat is equipped with web beam, spacing seat all is equipped with inside sunken material reduction groove one on the upper and lower both sides face that is located web beam, and the tank bottom department that subtracts material groove one protrusion has the rib that is used for strengthening the cooperation intensity between spacing seat and the threaded rod.

If the handrail is arranged on both sides or one side of the handrail when the handrail frame is arranged in the staircase, a threaded rod with a U-shaped limiting seat can be used, the U-shaped limiting seat can be matched with the upright post on the handrail in a clamping way, and the handrail is very convenient to use. The inboard of the spacing seat at the U-shaped has the atress face, and the cooperation area between atress face and the stand is big, and the atress is stable, and overall connection is good the back stability better, and reinforced beam all designs in the both sides of spacing seat when guaranteeing structural strength has the groove of subtracting one, can effectual material on the basis of guaranteeing overall structure intensity to and reduce weight. The threaded rod is connected with the limiting seat through the inserting threads, and the connection strength between the limiting seat and the threaded rod can be improved due to the fact that the first material reducing groove is formed, and the protruding reinforcing portion is arranged on the bottom of the first material reducing groove.

In foretell children's safety door fence, it can supply threaded rod male hole to have on the stopper, and the protrusion has the bump on the side on the stopper, the left and right sides that lies in the bump on the stopper all is provided with the depressed part that is V-arrangement undercut, both sides all are equipped with the sectional groove around lieing in the bump on the stopper, the tip of bump has the direction inclined plane that the slope set up.

The pipe grafting cooperation on stopper and the fence frame of this design, the bump on it can be fixed in the trompil on the inner wall of pipe after the stopper inserts and make tight fit between stopper and the pipe fixed, and the design of sectional groove and depressed part can let the bump receive the extrusion when inserting intraductal to sink more easily and take place deformation and have the resilience force to make the bump kick-back to spacing fixed in the steel pipe trompil again. The arrangement of the guide inclined plane can ensure that the salient point can move forward along the guide inclined plane when contacting with the pipe and is smoother when entering the pipe.

In foretell children's safety door fence, the hurdle includes body and extension piece, can dismantle between extension piece and the body and be connected and be provided with the reinforcement between extension piece and the body, the radial cross-section of reinforcement is the U-shaped just the reinforcement card is established on the bottom between body and extension piece.

The design of extension piece is in order to prevent that can reach the effect of adaptation through the installation extension piece when the not adaptation of interval between fence frame and the wall, installs the reinforcement additional between extension piece and body behind the installation extension piece and makes extension piece and body formation bulk connection intensity obtain guaranteeing.

In foretell children's safety door fence, the reinforcement is trapezoidal form along its ascending cross-section of width direction, the reinforcement has on its length direction to be used for with body and extension joint complex draw-in groove, the protrusion has the enhancement convex surface in the both sides portion of reinforcement, strengthen having seted up the even spacer groove in a plurality of intervals on the convex surface, the enhancement convex surface between the spacer groove forms a plurality of vertical ribs of root, subtract silo two has been seted up on the bottom surface of reinforcement, and the bottom of reinforcement is equipped with the even strengthening rib in interval on the length direction of subtracting silo two, the strengthening rib all is arranged along the width direction of subtracting silo two and the both ends of strengthening rib all meet with the both sides cell wall that subtracts silo two, subtract the silo internal bit in and all set up towards the inside material reduction cavity that extends of rib with every rib just to the department.

The trapezoidal form is made in order to satisfy structural strength's demand to the reinforcement of this design, and the upper end width is little promptly, and the bottom width is big, and design structural strength is better like this, and this reinforcement has in addition in its side design to strengthen the convex surface in order to strengthen the side direction and support intensity. The material quantity and the quality of whole reinforcement have all obtained improving when foretell structural strength obtains promoting, so this design has seted up the interval groove on strengthening the convex surface in order to reduce the material, material saving, and the material reducing groove two has been seted up on comparatively wide bottom, through hollowing out the material on the part bottom surface with material saving, and set up the strengthening rib in order to realize that structural strength does not receive the influence when hollowing out, and this design still hollows out the inside of rib and forms the material reducing cavity, make the whole material of its whole reinforcement further descend, material saving, make holistic structural strength obtain promotion by a wide margin when reducing in production cost.

In the child safety door fence, the pedal is clamped and arranged at the bottom of the fence frame and right below the fence plate.

The utility model has the advantages that:

1. this design can only let the spring bolt part withdraw from the locked groove through removing the linkage, then just can let domatic drive spring bolt guide on the lock seat move and further withdraw from the locked groove to the pulling lock seat that lifts, complete unblock, can prevent like this that some kids from going to unblock this safety lock through control linkage, even the linkage is removed also can the unblock part, and can't open the door fence of installing this safety lock, only remove the linkage after the lifting lock seat just can accomplish whole unblocks again, make the security of this safety lock after the locking obtain promotion by a wide margin.

2. The breast board of this design can upwards lifting certain distance after taking place to rotate, and itself breast board supports in grades through spacing portion, slope and leans on the ramp, and under the condition of the artificial exogenic action of no people after the lifting, contact site can move down along the ramp direction, moves down in-process breast board and is promptly at the in-process that resets, and the design has utilized breast board self gravity or the downward external force of axial to drive the breast board and resets like this, and stability is fabulous.

3. The design of extension piece can make this hurdle frame and installation wall adaptation more, still is provided with stopper, adjusting nut and threaded rod on the extension piece, and adjusting nut and threaded rod can be further finely tune the installation width to the hurdle frame, let the body of having installed the extension piece additional higher with the degree of cooperation of wall, and the direct threaded connection of threaded rod comes flexible regulation length through the screw rotation on the nut for the hurdle frame of this design can adapt to various installation environment.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a half sectional view of the safety lock of the present invention;

FIG. 3 is a view showing the lower support and the limiting block of the present invention;

FIG. 4 is a matching view of the lower support and the second rotating sleeve of the present invention;

FIG. 5 is a part view of the lower support of the present invention;

FIG. 6 is a drawing showing the second rotary sleeve of the present invention;

FIG. 7 is a detail view of the stopper of the present invention;

FIG. 8 is a detail view of the reinforcement member of the present invention;

FIG. 9 is a bottom view of the reinforcement member of the present invention;

FIG. 10 is a side view of the reinforcement member of the present invention;

fig. 11 is a cross-sectional view of the upper support and the first rotating sleeve of the present invention;

fig. 12 is a part view of the spacing base of the present invention.

In the figure, 1, a lock body; 11. a stroke slot; 2. a lock base; 21. locking the groove; 22. a slope surface; 3. a latch bolt; 31. a guide slope; 32. a card slot; 4. a linkage member; 41. a button; 42. a clamping block; 5. a hurdle frame; 51. a base; 52. a limiting groove; 53. an opening; 54. a nut; 55. a plug; 551. an inner bore; 552. salient points; 553. a section groove; 56. a threaded rod; 57. a leaning seat; 58. a limiting seat; 59. a body; 591. an extension member; 592. a reinforcement; 593. a card slot; 594. a reinforcing convex surface; 595. a spacing groove; 596. a rib; 597. a material reducing groove II; 598. reinforcing ribs; 599. a material reducing cavity; 6. a breast board; 61. a limiting block; 62. a pedal; 7. an upper support; 8. a lower support; 81. a second rotating shaft; 82. a ramp; 83. a shaft hole; 84. a peak; 9. rotating the sleeve I; 91. a first rotating shaft; 92. a gasket; 93. a spring; 10. rotating the sleeve II; 101. a limiting part; 102. a slope surface; 103. an inner groove.

Detailed Description

As shown in fig. 1-12, a child safety door fence includes a fence frame 5 and a fence 6 rotatably connected to the fence frame 5, a lock body 1 and a lock base 2 are respectively installed on opposite sides of upper ends of the fence frame 5 and the fence 6, the lock base 2 has a lock groove 21, the lock body 1 has a lock tongue 3 inserted into the lock groove 21, a slope 22 inclined downward relative to a lower side of the lock tongue 3 is provided at a position close to a notch on a groove wall of the lock groove 21 below the lock tongue 3, the lock body 1 is provided with a linkage 4 capable of driving the lock tongue 3 to partially exit from the lock groove 21 so that an end of the lock tongue 3 is above the slope 22, and when the end of the lock tongue 3 is above the slope 22, the lock tongue 3 can move along the slope 22 to completely exit from the lock groove 21 by lifting the lock base 2 upward. When the safety door fence is in a normal locking state, the bolt 3 is completely inserted into the lock groove 21, the end part of the bolt 3 is close to the bottom of the lock groove 21, the lock seat 2 is moved upwards in the up-down front-back direction at this time, and the bolt 3 and four groove walls of the lock groove 21 form a support to limit the movement of the lock seat 2, namely, the normal locking state; in a semi-unlocking state, if a child accidentally moves the linkage 4 to enable the bolt 3 to partially withdraw from the lock groove 21, at the moment, the bolt 3 can be abutted against the front side wall and the rear side wall of the lock groove 21 in the front-rear direction and is in a locked state at the front side and the rear side, the lock base 2 is pressed downwards, the bolt 3 can also be abutted against the upper side wall of the lock groove 21 to be limited to be separated, only the lock base 2 is lifted upwards, the slope 22 on the lock base 2 can drive the bolt 3 to move in a guiding manner to further withdraw from the lock groove 21, and when the bolt 3 completely withdraws from the lock groove 21, the lock base 2 can move back and forth, namely, the unlocking is realized; complete unlocking, it makes 3 tip of spring bolt be in domatic 22 top to remove linkage 4 earlier, then let domatic 22 drive spring bolt 3 to withdraw from the locked groove 21 completely through carrying the lock seat 2 and be in the complete unlocking state promptly, this design is through such three kinds of unlocking state, can realize preventing that some kids from removing this safety lock of unblock through control linkage 4, even linkage 4 is removed also can only the unblock part, and can't open the door sill of installing this safety lock, make the security of this safety lock after the locking obtain promotion by a wide margin.

The lower side of the end part of the lock tongue 3 is provided with a guide inclined plane 31 which can be matched with the sloping surface 22. The inclined plane 31 that has the direction on the tip of the spring bolt 3 of this design, the inclined plane 31 that leads is the same with domatic 22's incline direction, and the inclined plane 31 that leads when carrying the lock seat 2 can be better moves along domatic 22 direction and makes spring bolt 3 withdraw from lock seat 2 completely, and the design makes this safety lock structure more smooth and easy when the secondary unblock, improves the security when guaranteeing that the unblock is smooth and easy like this. Travel groove 11 has been seted up to 1 upper end of lock body, link 4 is for inlaying the button 41 of locating in travel groove 11 and can following travel groove 11 and remove, draw-in groove 32 has been seted up to the upper end of spring bolt 3, the left side of draw-in groove 32 is sealed and the right side of draw-in groove 32 is opened, be equipped with the stopper 61 that the card was gone into in the draw-in groove 32 on the button 41, stopper 61 can form with draw-in groove 32 left side cell wall and keep out and stopper 61 can follow the uncovered department in right side of draw-in groove 32 and take off and move, the tip that leans on spring bolt 3 when leaning on with travel groove 11 when button 41 moves left and leans on is located domatic 22 top. The link 4 of this design is actually button 41, can drive 3 unblocks of spring bolt through shift button 41 on lock body 1, but the button 41 of this design also can only withdraw the spring bolt 3 half when moving to leftmost extreme position along stroke groove 11, the spring bolt 3 part is retrieved and is made the tip of spring bolt 3 be located domatic 22 top, can let spring bolt 3 further retract through carrying the lift lock seat 2 like this, thereby such secondary unlocking mode can effectively avoid some clever children independently to move button 41 unblock safety lock and open the door sill, design the security height like this. Install base 51 and stopper 61 respectively on the relative lateral part of hurdle 5 and breast board 6 lower extreme, base 51 is located and has seted up spacing groove 52 on the one side of being close to breast board 6, and the upper end of spacing groove 52 has uncovered, and stopper 61's one end stretches into in the spacing groove 52 and stopper 61 can deviate from uncovered department when breast board 6 lifts. Still be provided with base 51 and stopper 61 with the bottom between hurdle 5 on the lateral part of breast board 6 rotation end, when the safety lock normally locks, stopper 61 is inserted in spacing groove 52, the downside that makes breast board 6 rotation end spacing of both sides cell wall of spacing groove 52 can not take place the slope when the atress, let whole breast board 6 block the effect better, need promote the lock seat 2 when the unblock and make the safety lock unblock completely, so breast board 6 can drive stopper 61 and together lift, stopper 61 lift can break away from the upside opening department of spacing groove 52, rotate breast board 6 again and can accomplish the unblock, design security ten minutes height like this.

The hurdle frame 5 is provided with an opening 53 through which people can walk, an upper support 7 and a lower support 8 are fixed on one side of the hurdle frame 5, which is located at the opening 53, a first rotating sleeve 9 and a second rotating sleeve 10 are fixed on the side portion of the hurdle plate 6, a first rotating shaft 91 and a second rotating shaft 81 are respectively arranged on the first rotating sleeve 9 and the second rotating sleeve 10, the first rotating shaft 91 is in plug-in fit with the upper support 7, and the second rotating shaft 81 is in plug-in fit with the lower support 8. The lower support 8 is provided with a shaft hole 83 used for being matched with the second rotating shaft 81, symmetrical ramps 82 are obliquely arranged on two sides of the shaft hole on the lower support 8, the highest positions of the two ramps 82 are intersected to form a peak 84, symmetrical limiting parts 101 protrude from two sides of the second rotating sleeve 10, a slope surface 102 and an inner groove 103 are respectively arranged on two sides of the limiting part 101 on the second rotating sleeve 10, when the second rotating sleeve 10 rotates, the slope surface 102 and the ramp 82 in the rotating direction can move in a mutually guiding mode to enable the second rotating sleeve 10 to lift upwards, the slope surface 102 and the ramp 82 are kept in point contact in the rotating process, and any inner groove 103 can enable the second rotating sleeve 10 to be kept in an open state through the fact that the second rotating sleeve 10 rotates and is in clamping fit with the ramp 82 at the peak 84.

The outer side of the hurdle frame 5 is inserted with a plug 55, an inner hole 551 of the plug 55 is inserted with a threaded rod 56, the threaded rod 56 can slide along the inner hole 551 in a guiding mode, the threaded rod 56 is connected with a nut 54 in a threaded mode, and the nut 54 can control the sliding distance between the threaded rod 56 and the plug 55 through rotation and can abut against the end face of the threaded rod 54. The end portion of the threaded rod 56 is fixed with a U-shaped limiting seat 58 used for being matched with an upright post on a stair, the inner side of the limiting seat 58 is provided with an arc-shaped stress surface 581, two side portions of the limiting seat 58 are respectively provided with a first material reducing groove 582 which is recessed inwards, the groove bottom of the first material reducing groove 582 protrudes to form a reinforcing portion 583 used for reinforcing the matching strength between the limiting seat 58 and the threaded rod 56, an inner hole 551 which can be used for inserting the threaded rod 56 is formed in the plug 55, a salient point 552 protrudes from the upper side surface of the plug 55, left and right sides of the plug 55 on the salient point 552 are respectively provided with a recessed portion 554 which is recessed downwards in a T shape, sectional grooves 553 are respectively formed in the front side and the rear side of the plug 55 on the salient point 552, and guide inclined planes 555 are arranged at the end portions of the salient point 552. The stile comprises a body 59 and an extension piece 591, the extension piece 591 is detachably connected with the body 59, a reinforcing member 592 is arranged between the extension piece 591 and the body 59, the radial section of the reinforcing member 592 is U-shaped, and the reinforcing member 592 is clamped on the bottom between the body 59 and the extension piece 591. Reinforcing member 592 is trapezoidal form along the cross-section on its width direction, reinforcing member 592 has along its length direction be used for with body 59 and extension 591 joint complex draw-in groove 593, the convex surface 594 is strengthened to the protrusion in the both sides portion of reinforcing member 592, strengthen having seted up a plurality of even interval grooves 595 in interval on the convex surface 594, strengthen the convex surface 594 and form a plurality of vertical ribs 596 under the separation of interval groove 595, subtract two 597 of silo have been seted up on the bottom surface of reinforcing member 592, be equipped with even strengthening rib 598 in interval on the length direction of subtract two 597 of silo bottom edge of reinforcing member 592, strengthening rib 598 all arranges along the width direction that subtracts silo two 597 and the both ends of strengthening rib 598 all meet with the both sides cell wall that subtracts silo two 597, subtract silo two 597 internal bit and all offer towards the inside material reducing cavity 599 that extends of rib 596 with every rib 596. A pedal 62 is clamped on the bottom of the fence frame 5 and is positioned right below the fence 6.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description, and are not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and therefore, are not to be considered as limitations of the present invention, and the fundamental principles, main features, and advantages of the present invention have been shown and described above, as would be understood by those skilled in the art.

Claims (14)

1. The utility model provides a children's safety door fence, includes hurdle (5) and rotates and connect breast board (6) on hurdle (5), install lock body (1) and lock seat (2) on the relative lateral part in hurdle (5) and breast board (6) upper end respectively, lock seat (2) are gone up and have locked groove (21), lock body (1) is gone up and is had spring bolt (3) that insert in locked groove (21), a serial communication port, locked groove (21) are located spring bolt (3) below the cell wall and are being equipped with domatic (22) of relative spring bolt (3) downside slope near notch position department, be equipped with on lock body (1) and drive spring bolt (3) part and withdraw from locked groove (21) and make spring bolt (3) tip be in linkage (4) of domatic (22) top, when spring bolt (3) tip is in domatic (22) top spring bolt (3) can make spring bolt (3) tip along domatic (22) direction removal to withdraw from locked groove (21) completely through upwards lifting.

2. The child safety door sill according to claim 1, characterized in that a guide slope (31) capable of cooperating with the slope (22) is provided at the lower side of the end of the latch tongue (3).

3. The child safety door sill according to claim 2, characterized in that a stroke groove (11) is formed in the upper end of the lock body (1), the linkage member (4) is a button (41) which is located in the stroke groove (11) and can move along the stroke groove (11), a clamping groove (32) is formed in the upper end of the lock tongue (3), the left side of the clamping groove (32) is closed, the right side of the clamping groove (32) is open, a clamping block (42) which is clamped into the clamping groove (32) is arranged on the button (41), the clamping block (42) can be abutted to the left side groove wall of the clamping groove (32) and can be disengaged from the right side opening of the clamping groove (32), and when the button (41) moves leftwards, the end of the lock tongue (3) is located above the slope surface (22) when the clamping block abuts to the left side groove wall of the stroke groove (11).

4. The children's safety door fence according to claim 3, characterized in that a base (51) and a stop block (61) are respectively installed on the opposite side parts of the lower ends of the fence frame (5) and the fence (6), a limit groove (52) is formed on one side of the base (51) close to the fence (6), the upper end of the limit groove (52) is provided with an opening, one end of the stop block (61) extends into the limit groove (52) and the stop block (61) can be disengaged from the opening when the fence (6) is lifted, an elastic member capable of keeping the stop block (61) in an extending state is arranged between the stop block (61) and the fence (6), and when the fence (6) is reset, the stop block (61) can move along the side surface of the base (51) and retract and can be clamped into the limit groove (52) again when moving into the limit groove (52).

5. The child safety door sill according to any one of claims 1 to 4, characterized in that the sill frame (5) is provided with an opening (53) through which a person can walk, an upper support (7) and a lower support (8) are fixed to one side of the sill frame (5) located at the opening (53), a first rotating sleeve (9) and a second rotating sleeve (10) are fixed to the side portion of the sill plate (6), the first rotating sleeve (9) and the second rotating sleeve (10) are respectively provided with a first rotating shaft (91) and a second rotating shaft (81), the first rotating shaft (91) is in plug-in fit with the upper support (7), and the second rotating shaft (81) is in plug-in fit with the lower support (8).

6. The child safety door sill according to claim 5, characterized in that the lower support (8) is provided with a shaft hole (83) for being matched with the second rotating shaft (81), symmetrical ramps (82) are obliquely arranged on two sides of the shaft hole on the lower support (8), the highest parts of the two ramps (82) are intersected to form a highest point (84), symmetrical limiting parts (101) are protruded on two sides of the second rotating sleeve (10), a ramp surface (102) and an inner groove (103) are respectively arranged on two sides of the limiting part (101) on the second rotating sleeve (10), when the second rotating sleeve (10) rotates, the ramp surface (102) and the ramp (82) in the rotating direction can be guided to move mutually to enable the second rotating sleeve (10) to be lifted upwards, the ramp surface (102) and the ramp (82) are kept in point contact during rotation, and any inner groove (103) can be clamped and matched with the ramp (82) at the highest point (84) through rotation of the second rotating sleeve (10) to enable the second rotating sleeve (10) to be kept in an open state.

7. The child safety door sill according to claim 5, characterized in that a pad (92) is fixed to the end of the first rotating shaft (91), a spring (93) is sleeved on the first rotating shaft (91), one end of the spring (93) abuts against the pad (92), and the other end of the spring (93) abuts against the inner side surface of the upper support (7).

8. The child safety door sill according to claim 7, characterized in that plugs (55) are inserted on the outer side portions of the frame frames (5), threaded rods (56) are inserted on the plugs (55) and the threaded rods (56) can slide along the plugs (55), nuts (54) are connected on the threaded rods (56) in a threaded manner, and the nuts (54) can control the sliding distance between the threaded rods (56) and the plugs (55) through rotation and form a stop on the end faces thereof.

9. A child safety door stop according to claim 8, characterized in that an abutment (57) in the form of a truncated cone for abutment against the inside of a wall is fixed to the end of the threaded rod (56).

10. The child safety door sill according to claim 8, characterized in that a U-shaped limiting seat (58) for matching with a vertical column on a staircase is fixed on the end of the threaded rod (56), the inner side of the limiting seat (58) is provided with an arc-shaped stress surface (581), the back of the limiting seat (58) is provided with a reinforcing beam (584), the limiting seat (58) is provided with a first inwardly-recessed material reducing groove (582) on each of the upper and lower side surfaces of the reinforcing beam (584), and a reinforcing part (583) for reinforcing the matching strength between the limiting seat (58) and the threaded rod (56) protrudes from the groove bottom of the first material reducing groove (582).

11. The child safety fence according to claim 9, wherein the plug (55) is provided with an inner hole (551) into which the threaded rod (56) can be inserted, the plug (55) is provided with a convex point (552) protruding from the upper side surface thereof, the plug (55) is provided with a recess (554) which is recessed downwards in a V shape at the left and right sides of the convex point (552), the plug (55) is provided with sectional grooves (553) at the front and rear sides of the convex point (552), and the end of the convex point (552) is provided with a guide slope (555) which is obliquely arranged.

12. A child safety door rail according to claim 11, characterized in that the rail comprises a body (59) and an extension piece (591), the extension piece (591) is detachably connected with the body (59), a reinforcing member (592) is arranged between the extension piece (591) and the body (59), the radial section of the reinforcing member (592) is U-shaped, and the reinforcing member (592) is clamped on the bottom between the body (59) and the extension piece (591).

13. The child safety door fence according to claim 12, wherein the cross section of the reinforcing member (592) in the width direction is in a trapezoid shape, the reinforcing member (592) has a clamping groove (593) for clamping and matching with the body (59) and the extension member (591) in the length direction, a reinforcing convex surface (594) protrudes from two side portions of the reinforcing member (592), a plurality of spaced grooves (595) with uniform intervals are formed in the reinforcing convex surface (594), a plurality of vertical ribs (596) are formed under the separation of the spaced grooves (595), a material reducing groove II (597) is formed in the bottom surface of the reinforcing member (592), reinforcing ribs (598) with uniform intervals are formed in the bottom of the reinforcing member (592) in the length direction of the material reducing groove II (597), the reinforcing ribs (598) are arranged in the width direction of the material reducing groove II (597), two ends of the reinforcing ribs (598) are connected with two sides of the material reducing groove II (597), and the two ends of the reinforcing ribs (598) are located in the material reducing groove II (597) and face the inner side of each rib (599) and face the inner side of each rib (597).

14. A child safety door hurdle according to claim 13, characterized in that a step (62) is clipped on the bottom of the hurdle frame (5) just below the balustrade panel (6).

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