CN207701062U - Ladder plastics spring safety structure - Google Patents

Abstract

The utility model is related to a kind of ladder plastics spring safety structures, it includes front leg strut component, rear support leg component and Active foot plate, front leg strut component and rear support leg member hinges, Active foot plate one end is rotatably assorted with front leg strut component, the Active foot plate other end is overlapped with rear support leg component, auxiliary catch ontology is additionally provided on Active foot plate, auxiliary catch ontology and rear support leg component snapping, the auxiliary catch ontology is equipped with elasticity of plastics part, elasticity of plastics part and auxiliary catch ontology single injection-molded, elasticity of plastics part are contacted with Active foot plate.The auxiliary catch ontology and elasticity of plastics part single injection-molded of such ladder plastics spring safety structure, it is possible to reduce number of parts reduces processing cost and material cost to reduce die cost input；Meanwhile the generalization of the diversification and part to ladder product has certain promotion, to improve the competitiveness of product in market.

Description

Ladder plastics spring safety structure

Technical field

The utility model is related to a kind of ladder, especially a kind of ladder plastics spring safety structure.

Background technology

China Patent No. CN201420281543.0 discloses a kind of folding step ladder on October 29th, 2014, including preceding Supporting leg, rear support leg, pedal and support plate, pedal are fixed on front leg strut, and rear support leg upper end is rotatably assorted with front leg strut, after Transverse tube is additionally provided on supporting leg, support plate one end is rotatablely connected with front leg strut, and the support plate other end is overlapped on the transverse tube of rear support leg, The other end of the support plate is equipped with the locking buckle for connecting with transverse tube, and support plate bottom is equipped with connecting rod, connecting rod two end difference It is rotatably assorted with support plate and transverse tube.The locking buckle of the structure is plastic part, is connect with support plate by metal spring, currently When supporting leg is opened with rear support leg, support plate is overlapped on the transverse tube of rear support leg, and locking buckle has fastening under metal spring effect The effect trend of transverse tube, to prevent pedal ladder, front leg strut and rear support leg fold in use；But due to metal spring It is separated with both locking buckles, cause cost to improve but also the input substantially produced also increases so that increasing the difficulty of installation.

In addition, exist simultaneously one kind on the market conducts oneself with dignity principle to ensure that part is correctly blocked with transverse tube, but one by part There is the situation that cannot correctly block under fixed condition, to which there are certain risks.

Utility model content

The purpose of this utility model is to provide a kind of simple and reasonable for structure, easy for installation, reduction number of parts, savings Processing cost, the ladder plastics spring safety structure for improving stability, with overcome the deficiencies in the prior art.

What the purpose of this utility model was realized in：

A kind of ladder plastics spring safety structure, including front leg strut component, rear support leg component and Active foot plate, front leg strut group Part and rear support leg member hinges, Active foot plate one end are rotatably assorted with front leg strut component, the Active foot plate other end and rear support leg group Part overlaps, and auxiliary catch ontology, auxiliary catch ontology and rear support leg component snapping are additionally provided on Active foot plate, it is characterised in that：It is described Auxiliary catch ontology is equipped with elasticity of plastics part, elasticity of plastics part and auxiliary catch ontology single injection-molded, elasticity of plastics part and work Dynamic pedal contact.The shape of elasticity of plastics part can be set according to common elastic part shape so that it can with auxiliary catch ontology one It is body formed.The elastic property using material itself is realized to have the function that instead of metal spring, and energy in the prior art Realize the function of buckle.

The purpose of this utility model can also use following technical measures to solve：

As a kind of more specific scheme, the auxiliary catch ontology includes pedestal, operation handle, coupler body and the plastics bullet Property part, pedestal is rotatably arranged on Active foot plate bottom, operation handle and coupler body setting in pedestal rear end, elasticity of plastics part one end with Pedestal front end connects, and the elasticity of plastics part other end is contacted with Active foot plate bottom.

The elasticity of plastics part is plastics spring.

The plastics spring is S-shaped plates.

The front leg strut component includes front leg strut and fixed pedestal, and fixed pedestal is fixedly connected with front leg strut, rear support leg group Part includes rear support leg and supporting rod, and rear support leg is hinged with front leg strut, and supporting rod is arranged on rear support leg, and the Active foot plate other end is taken It is connected on supporting rod, supporting rod is equipped with the coupler body snapping for hooking position and auxiliary catch ontology；It is also set between supporting rod and Active foot plate There are connecting rod, connecting rod two end to be rotatably assorted respectively with supporting rod and Active foot plate.

Gum cover is arranged with outside the supporting rod, the hook position is arranged on gum cover surface.The hook position of gum cover is to auxiliary catch sheet The position-limiting action of the coupler body of body, gum cover uses the section diversification that can make supporting rod, while reducing the fee of material of gum cover With and die cost.

The pedestal that the Active foot plate bottom corresponds to auxiliary catch ontology is equipped with hinged seat, and hinged seat is equipped with pin hole, and pedestal is logical It is hinged with hinged seat to cross pin.

The hinged seat is made of left and right two boards body, and pin hole is opened on plate body and at left and right sides of plate body, pedestal It is arranged between two boards body, pin is inserted on the outside of pin hole；It is other on the outside of the respective pin hole of the Active foot plate bottom to be equipped with plastics Bumping post.Plastics bumping post is equipped with two, forms flare openings between two plastics bumping posts, pin flare openings are strutted after It can be fully mated with pin hole.

The Active foot plate bottom is in latticed, and the elasticity of plastics part other end stretches into a grid.Fenestral fabric can be with So that Active foot plate is under using smaller material context, intensity can reach the requirement of relevant regulations.

The Active foot plate is equipped with the through-hole for leading to its rear end top surface, and the operation handle of auxiliary catch ontology stretches into through-hole. By push handle can make auxiliary catch body overcome the active force of elasticity of plastics part with hook body and be detached from, before then carrying out The folding storage of leg assembly and rear support leg component.

The beneficial effects of the utility model are as follows：

The auxiliary catch ontology and elasticity of plastics part single injection-molded of such ladder plastics spring safety structure, it is possible to reduce Number of parts reduces processing cost and material cost to reduce die cost input；Meanwhile to the diversification of ladder product And the generalization of part has certain promotion, to improve the competitiveness of product in market.

Description of the drawings

Fig. 1 is one example structure schematic diagram of the utility model.

Fig. 2 is enlarged structure schematic diagram at A in Fig. 1.

Fig. 3 is Active foot plate, auxiliary catch ontology, gum cover and supporting rod decomposition texture schematic diagram in the utility model.

Fig. 4 is the utility model ladder structural schematic diagram.

Fig. 5 is the utility model footmuff body construction schematic diagram.

Fig. 6 is enlarged structure schematic diagram at B in Fig. 5.

Specific implementation mode

The utility model is further described with reference to the accompanying drawings and embodiments.

Shown in Fig. 1 to Fig. 3, a kind of ladder plastics spring safety structure, including front leg strut component, rear support leg component and Active foot plate 2, front leg strut component and rear support leg member hinges, 2 one end of Active foot plate are rotatably assorted with front leg strut component, and activity is stepped on 2 other end of plate is overlapped with rear support leg component, and auxiliary catch ontology 7, auxiliary catch ontology 7 and rear support leg group are additionally provided on Active foot plate 2 Part snapping, the auxiliary catch ontology 7 are equipped with elasticity of plastics part 72, and elasticity of plastics part 72 is once molded into auxiliary catch ontology 7 Type, elasticity of plastics part 72 are contacted with Active foot plate 2.

The auxiliary catch ontology 7 includes pedestal 71, operation handle 75, coupler body 73 and the elasticity of plastics part 72, pedestal 71 Be rotatably arranged on 2 bottom of Active foot plate, operation handle 75 and the setting of coupler body 73 in 71 rear end of pedestal, 72 one end of elasticity of plastics part with 71 front end of pedestal connects, and 72 other end of elasticity of plastics part is contacted with 2 bottom of Active foot plate.

The elasticity of plastics part 72 is plastics spring.The plastics spring is S-shaped plates.

The front leg strut component includes front leg strut 1 and fixed pedestal 3, and fixed pedestal 3 is fixedly connected with front leg strut 1, rear to prop up Leg assembly includes rear support leg 9 and supporting rod 5, and rear support leg 9 is hinged with front leg strut 1, and supporting rod 5 is arranged on rear support leg 9, and activity is stepped on 2 other end of plate is overlapped on supporting rod 5, and supporting rod 5 is equipped with 73 snapping of coupler body for hooking position 61 and auxiliary catch ontology 7；Supporting rod 5 Connecting rod 8 is additionally provided between Active foot plate 2,8 both ends of connecting rod are rotatably assorted with supporting rod 5 and Active foot plate 2 respectively.

Gum cover 6 is arranged with outside the supporting rod 5, the hook position 61 is arranged on 6 surface of gum cover.

The pedestal 71 that 2 bottom of the Active foot plate corresponds to auxiliary catch ontology 7 is equipped with hinged seat 23, and hinged seat 23 is equipped with pin hole 24, pedestal 71 is hinged by pin 74 and hinged seat 23.

The hinged seat 23 is made of left and right two boards body, and pin hole 24 is opened on plate body and at left and right sides of plate body, Pedestal 71 is arranged between two boards body, and pin 74 is inserted into from 24 outside of pin hole；Outside 2 bottom respective pin hole 24 of the Active foot plate Plastics bumping post 21 is equipped with by side.

2 bottom of the Active foot plate is in latticed, and 72 other end of elasticity of plastics part stretches into a grid.In conjunction with shown in Fig. 4, The Active foot plate 2 is equipped with the through-hole 22 for leading to its rear end top surface, and the operation handle 75 of auxiliary catch ontology 7 stretches into through-hole 22, Also, operation handle 75 is located at Active foot plate top surface rear end.

In conjunction with shown in Fig. 5 and Fig. 6, the front leg strut 1 and rear support leg 9 of ladder respectively have the foot tube of left and right two to constitute, foot tube Lower end is equipped with footmuff ontology 4, and 4 bottom of footmuff ontology is equipped with non slip surface, the footmuff ontology 4 and non slip surface single injection-molded.

The non slip surface includes peripheral non slip surface 42 and central non slip surface 43, and peripheral non slip surface 42 is located at 4 bottom of footmuff ontology Portion periphery, central non slip surface 43 are located at 42 inside of peripheral non slip surface, are equipped between peripheral non slip surface 42 and central non slip surface 43 recessed Slot 44.

It is equipped with multi-disc bearing rib 45 in the groove 44, is spaced from each other between each bearing rib 45, bearing rib 45 Both ends are connect with the side of peripheral non slip surface 42 and 43 side of central non slip surface respectively.

The periphery non slip surface 42 and central non slip surface 43 are equipped with anti-skid chequer.

4 top of the footmuff ontology is equipped with foot tube grafting cavity, and foot tube grafting cavity side is equipped with connecting hole 41.Foot tube is inserted Enter in foot tube grafting cavity and is connect with foot tube grafting cavity by screw after connecting hole 41.

Tight fit convex ribs, tight fit convex ribs and foot tube tight fit are equipped on the inside of the foot tube grafting cavity.

The loose upper end in 4 lower end of footmuff ontology is narrow, to increase its contact area.

Claims (10)

1. a kind of ladder plastics spring safety structure, including front leg strut component, rear support leg component and Active foot plate（2）, front leg strut Component and rear support leg member hinges, Active foot plate（2）One end is rotatably assorted with front leg strut component, Active foot plate（2）The other end with Rear support leg component overlaps, Active foot plate（2）On be additionally provided with auxiliary catch ontology（7）, auxiliary catch ontology（7）It is buckled with rear support leg component It connects, it is characterised in that：The auxiliary catch ontology（7）It is equipped with elasticity of plastics part（72）, elasticity of plastics part（72）With auxiliary catch sheet Body（7）Single injection-molded, elasticity of plastics part（72）With Active foot plate（2）Contact.

2. ladder plastics spring safety structure according to claim 1, it is characterised in that：The auxiliary catch ontology（7）Including Pedestal（71）, operation handle（75）, coupler body（73）With the elasticity of plastics part（72）, pedestal（71）It is rotatably arranged on Active foot plate （2）Bottom, operation handle（75）And coupler body（73）It is arranged in pedestal（71）Rear end, elasticity of plastics part（72）One end and pedestal（71） Front end connects, elasticity of plastics part（72）The other end and Active foot plate（2）Bottom contacts.

3. ladder plastics spring safety structure according to claim 1 or claim 2, it is characterised in that：The elasticity of plastics part（72） For plastics spring.

4. ladder plastics spring safety structure according to claim 3, it is characterised in that：The plastics spring is S-shaped Plates.

5. ladder plastics spring safety structure according to claim 2, it is characterised in that：The front leg strut component includes preceding branch Leg（1）And fixed pedestal（3）, fixed pedestal（3）With front leg strut（1）It is fixedly connected, rear support leg component includes rear support leg（9）And branch Strut（5）, rear support leg（9）With front leg strut（1）It is hinged, supporting rod（5）It is arranged in rear support leg（9）On, Active foot plate（2）The other end It is overlapped on supporting rod（5）On, supporting rod（5）It is equipped with and hooks position（61）With auxiliary catch ontology（7）Coupler body（73）Snapping；Supporting rod （5）With Active foot plate（2）Between be additionally provided with connecting rod（8）, connecting rod（8）Both ends respectively with supporting rod（5）And Active foot plate（2）Rotation Cooperation.

6. ladder plastics spring safety structure according to claim 5, it is characterised in that：The supporting rod（5）It is arranged with outside Gum cover（6）, the hook position（61）It is arranged in gum cover（6）Surface.

7. ladder plastics spring safety structure according to claim 2, it is characterised in that：The Active foot plate（2）Bottom pair Insurable hook ontology（7）Pedestal（71）Equipped with hinged seat（23）, hinged seat（23）Equipped with pin hole（24）, pedestal（71）Pass through pin Nail（74）With hinged seat（23）It is hinged.

8. ladder plastics spring safety structure according to claim 7, it is characterised in that：The hinged seat（23）By left and right two Block plate body is constituted, pin hole（24）It is opened on plate body and through the plate body left and right sides, pedestal（71）Setting two boards body it Between, pin（74）From pin hole（24）Outside is inserted into；The Active foot plate（2）Bottom respective pin hole（24）Plastics are equipped with by outside to keep off Column（21）.

9. ladder plastics spring safety structure according to claim 2, it is characterised in that：The Active foot plate（2）Bottom is in It is latticed, elasticity of plastics part（72）The other end stretches into a grid.

10. ladder plastics spring safety structure according to claim 2, it is characterised in that：The Active foot plate（2）Equipped with logical To the through-hole of its rear end top surface（22）, auxiliary catch ontology（7）Operation handle（75）Stretch into through-hole（22）It is interior.