CN210714432U

CN210714432U - Safety folding ladder

Info

Publication number: CN210714432U
Application number: CN201920720866.8U
Authority: CN
Inventors: 陈俊华
Original assignee: Jinhua Liyang Hardware Manufacturing Co ltd
Current assignee: Jinhua Liyang Hardware Manufacturing Co ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-06-09
Anticipated expiration: 2029-05-20

Abstract

The utility model relates to an staircase technical field discloses a safe folding ladder. The folding traction mechanism comprises a front support frame, a rear support frame and pedals, wherein connecting rods are hinged between every two adjacent pedals, and the end parts of the pedals are provided with folding traction mechanisms; the folding traction mechanism comprises a limiting rod positioned on the rear support frame, the lower plate surface of the pedal plate is provided with a lock hook fixing seat, the lock hook fixing seat comprises a fixing bottom plate, and a hinged plate is arranged on the fixing bottom plate; a lock hook is hinged between the hinged plates, and a limit groove clamped with the limit rod is arranged on the lock hook; a key mechanism for pushing the lock hook to be far away from the limiting rod is arranged on the outer end face of the pedal; the limiting rod is provided with a traction block, the traction block is provided with a through hole for the limiting rod to pass through, and the traction block is also provided with a sliding groove for the connecting rod to pass through. Through the setting of latch hook fixed plate, latch hook, button mechanism and traction block for folding staircase obtains fixedly when using, makes its safety that uses more, simultaneously, makes folding staircase get folding convenience more.

Description

Safety folding ladder

Technical Field

The utility model relates to an staircase technical field, specifically speaking relates to a safe folding ladder.

Background

The folding staircase is convenient to store due to being foldable, and the staircase is not high in height, so that the folding staircase is mainly used indoors such as families or offices. The folding escalators commonly used in the market at present are herringbone ladders and generally comprise a front support frame, a rear support frame, a pedal plate, an inverted U-shaped handrail and a folding traction device, wherein the front support frame and the rear support frame form a herringbone shape and are connected through the folding traction device, the pedal plate is arranged on the front support frame, and the inverted U-shaped handrail is connected to the top of the front support frame.

The patent with the application number of CN201720351417.1 discloses a household folding escalator, which comprises a front supporting frame, a rear supporting frame, a pedal connecting edge strip, a positioning edge strip, a supporting cross bar and a plurality of integrated pedals; the integral pedal comprises an integral pedal body and side covers on two sides, wherein the side covers are provided with a pin joint shaft hole, a pin joint positioning hole and a plurality of side cover mounting holes, and the integral pedal body is of a hollow structure and is internally provided with side cover mounting holes corresponding to the side cover mounting holes arranged on the side covers. Although various screws and nuts are hidden in the integral pedal plate after the pedal plate of the folding escalator is assembled, hands cannot be scratched when the pedal plate is carried and stored, the defects that the safety of the escalator is not high and the folding operation is inconvenient due to the fact that the connecting edge strip and the positioning edge strip are used for unfolding and positioning the escalator still exist.

SUMMERY OF THE UTILITY MODEL

The folding defect of using the operation inconveniently to the staircase that exists among the prior art, the utility model provides a safe folding ladder. The fixing device can fix the pedal in the using state, ensures the safety of a user and facilitates the folding and unfolding functions of the user.

In order to solve the above technical problem, the present invention solves the above technical problems.

The safe folding ladder comprises a front support frame and a rear support frame, wherein one ends of the front support frame and the rear support frame are mutually hinged, a plurality of transverse rods are arranged on the front support frame, pedals, one ends of which are mutually hinged with the transverse rods, are arranged on the transverse rods, connecting rods are hinged between the adjacent pedals and at the other ends of the pedals, and a folding traction mechanism is arranged at the end part of the pedal at the upper end of the front support frame; the folding traction mechanism comprises a limiting rod positioned on the rear support frame, a traction block is arranged on the limiting rod, a through hole for the limiting rod to pass through is formed in the traction block, and a sliding groove for the connecting rod to pass through is further formed in the traction block;

the lower plate surface of the pedal plate is provided with a groove, the bottom wall of the groove is provided with a lock hook fixing seat, the lock hook fixing seat comprises a fixing bottom plate fixedly arranged on the bottom wall of the groove, the fixing bottom plate is provided with hinged plates oppositely arranged, the fixing bottom plate is provided with a limiting plate matched with the side wall of the groove, and the limiting plate is provided with a limiting hole; a lock hook is hinged between the hinged plates, and a limit groove clamped with the limit rod is arranged on the lock hook;

the outer end face of the pedal is provided with a button mechanism, the button mechanism comprises an ejector rod penetrating through a limiting hole and extending into the position below the fixed base plate, the ejector rod is used for pushing the lock hook to break away from the limiting rod, one end, located below the fixed base plate, of the ejector rod is provided with a stop block, the diameter of the stop block is larger than that of the limiting hole, one end, located on the outer side face of the pedal, of the ejector rod is provided with a button, a spring used for pushing the ejector rod to keep away from.

Through the arrangement of the cross rod, the pedal plate, the connecting rod, the limiting rod and the traction block of the utility model, the pedal plate is hinged and connected through the connecting rod, so that the pedal plate at the upper end of the front support frame rotates around the cross rod to drive all the pedal plates to rotate around the cross rod, and the pedal plates can be folded and unfolded; the traction block is arranged, so that when the pedal plate is folded and folded, the connecting rod slides in the sliding groove on the traction block, the traction block rotates around the limiting rod, and the pedal plate drives the rear support frame to be folded and folded on the front support frame when being folded and folded, so that the folding and the folding of the folding staircase are more convenient; through the arrangement of the lock hook fixing seat, the lock hook and the key mechanism, the lock hook is clamped with the limiting rod, so that the folding escalator is fixed in a use state, the folding escalator is prevented from shrinking in the use state, and the safety of a user is guaranteed; the push rod, the spring and the button are arranged, so that when the button is pressed, the spring contracts to drive the push rod to push the lock hook to rotate, the lock hook is further far away from the limiting rod, fixing is released, and folding of the folding escalator are facilitated; the limit plate is arranged on the lock hook fixing seat, and the limit plate is arranged on the limit plate; the utility model discloses an above technical scheme for folding staircase obtains fixedly when using, makes its safety that uses more, simultaneously, makes folding staircase get folding convenience more.

Preferably, the upper surfaces of the pedals are provided with non-slip mats. Through the arrangement of the anti-slip mat, the friction force of a user standing on the upper surface of the pedal plate is increased, so that the user is prevented from falling off the escalator.

Preferably, the outer side surface of the spring is sleeved with a sponge sleeve. Through the setting of sponge cover for the sponge cover can protect the spring along with the flexible while that the button pressed, thereby prevents that the spring from falling the ash.

Preferably, the bottom end parts of the front support frame and the rear support frame are both provided with plugging covers. Through the arrangement of the blocking cover, the friction between the front support frame and the ground and the friction between the rear support frame and the ground are increased while the bottom ends of the front support frame and the rear support frame are protected, so that the staircase is prevented from sliding on the ground.

Preferably, plastic spacer bushes are arranged on the cross rod and positioned on two sides of the pedal. Through the setting of plastics spacer for the position of running-board on the horizontal pole obtains spacingly, and then prevents that the running-board from rocking on the horizontal pole, thereby makes the running-board work better.

Drawings

Fig. 1 is a schematic view of a safety folding ladder of embodiment 1;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a schematic view of a foot pedal in embodiment 1;

FIG. 4 is an enlarged view of B in FIG. 3;

FIG. 5 is a schematic view of the shackle holder of embodiment 1;

fig. 6 is a schematic view of the shackle of embodiment 1;

FIG. 7 is a schematic view of a drag mass in embodiment 1;

fig. 8 is a schematic view of a jack in embodiment 1.

The names of the parts indicated by the numerical references in the drawings are as follows: 110. a front support frame; 111. a cross bar; 112. blocking the cover; 120. a rear support frame; 121. a limiting rod; 130. a foot pedal; 131. a connecting rod; 211. a key mechanism; 221. a latch hook; 231. a traction block; 311. a groove; 321. a latch hook fixing seat; 331. a top rod; 341. a button; 351. a sponge sleeve; 411. fixing the bottom plate; 421. a hinge plate; 431. a limiting plate; 432. a limiting hole; 511. a limiting groove; 611. a through hole; 612. a sliding groove; 711. and a stop block.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.

Example 1

As shown in fig. 1-7, the present embodiment provides a safety folding ladder, which includes a front support frame 110 and a rear support frame 120, one end of each of which is hinged to each other, a plurality of cross bars 111 are disposed on the front support frame 110, foot pedals 130, one ends of which are hinged to the cross bars 111, are disposed on the cross bars 111, connecting rods 131 are hinged between adjacent foot pedals 130 and at the other end of the foot pedals 130, and a folding traction mechanism is disposed at the end of the foot pedals 130 at the upper end of the front support frame 110; the folding traction mechanism comprises a limiting rod 121 positioned on the rear support frame 120, a traction block 231 is arranged on the limiting rod 121, a through hole 611 for the limiting rod 121 to pass through is arranged on the traction block 231, and a sliding groove 612 for the connecting rod 131 to pass through is also arranged on the traction block 231;

the lower board surface of the pedal 130 is provided with a groove 311, the bottom wall of the groove 311 is provided with a lock hook fixing seat 321, the lock hook fixing seat 321 comprises a fixed bottom board 411 fixedly arranged on the bottom wall of the groove 311, the fixed bottom board 411 is provided with a hinged board 421 oppositely arranged, the fixed bottom board 411 is provided with a limiting board 431 matched with the side wall of the groove 311, and the limiting board 431 is provided with a limiting hole 432; a locking hook 221 is hinged between the hinge plates 421, and a limiting groove 511 clamped with the limiting rod 121 is arranged on the locking hook 221;

the outer end face of the pedal plate 130 is provided with a button mechanism 211, the button mechanism 211 comprises a top rod 331 penetrating through a limiting hole 432 and extending into the position below the fixed bottom plate 411, the top rod 331 is used for pushing the locking hook 221 to be separated from the limiting rod 121, one end, located below the fixed bottom plate 411, of the top rod 331 is provided with a stop block 711, the diameter of the stop block 711 is larger than that of the limiting hole 432, one end, located on the outer side face of the pedal plate 130, of the top rod 331 is provided with a button 341, a spring used for pushing the top rod 331 to be far away.

Through the arrangement of the cross rod 111, the pedals 130, the connecting rod 131, the limiting rod 121 and the traction block 231 in the embodiment, the connecting rod 131 is hinged with the pedals 130, so that the pedals 130 at the upper end of the front support frame 110 rotate around the cross rod 111 to drive all the pedals 130 to rotate around the cross rod 111, and the pedals 130 can be folded and folded; the traction block 231 is arranged, so that when the pedal 130 is folded and folded, the connecting rod 131 slides in the sliding groove 612 on the traction block 231, the traction block 231 rotates around the limiting rod 121, and the pedal 130 drives the rear support frame 120 to be folded and folded on the front support frame 110 when being folded and folded, so that the folding and the folding of the folding staircase are more convenient; through the arrangement of the lock hook fixing seat 321, the lock hook 221 and the key mechanism 211, the lock hook 221 is clamped with the limiting rod 121, so that the folding escalator is fixed in a use state, the folding escalator is prevented from shrinking in the use state, and the safety of a user is guaranteed; the top rod 331, the spring and the button 341 are arranged, so that when the button 341 is pressed, the spring contracts to drive the top rod 331 to push the locking hook 221 to rotate, and further the locking hook 221 is far away from the limiting rod 121, so that the fixation is released, and the folding and the extension of the folding escalator are facilitated; the stopper 711 and the through hole 432 are arranged to make the stopper 711 and the limiting plate 431 abut against each other, so that the top rod 331 is prevented from being separated from the latch hook fixing seat 321 under the action of the spring, and the key mechanism 211 works better; this embodiment is through above technical scheme for folding staircase obtains fixedly when using, makes its safety that uses more, simultaneously, makes folding staircase obtain folding convenience more.

In this embodiment, the upper surface of the pedal 130 is provided with a non-slip pad. By the provision of the non-slip mat, the friction of the user standing on the upper surface of the step tread 130 is increased, thereby preventing the user from falling off the escalator.

In this embodiment, the outer side surface of the spring is sleeved with a sponge sleeve 351. Through the setting of sponge cover 351 for sponge cover 351 can protect the spring along with the flexible of button 341 pressing, thereby prevents that the spring from falling the ash.

In this embodiment, the bottom ends of the front support frame 110 and the rear support frame 120 are both provided with a blocking cover 112. Through the arrangement of the blocking cover 112, the friction between the front support frame 110 and the ground is increased while the bottom ends of the front support frame 110 and the rear support frame 120 are protected, so that the staircase is prevented from sliding on the ground.

In this embodiment, plastic spacers are disposed on the cross bar 111 and on both sides of the pedal 130. Through the arrangement of the plastic spacer, the position of the pedal 130 on the cross rod 111 is limited, so that the pedal 130 is prevented from shaking on the cross rod 111, and the pedal 130 can work better.

When the safety folding ladder of the embodiment is used specifically, the front support frame 110 and the rear support frame 120 are unfolded firstly, and the locking hook 221 is shifted to enable the locking hook 221 to be clamped on the limiting rod 121 to fix the pedal 130, so that the safety of a user is guaranteed; when the escalator needs to be folded and unfolded, the button 341 is pressed, so that the top rod 331 pushes the locking hook 221 to be far away from the limiting rod 121, the fixing of the pedal 130 is released, and the pedal 130 is pulled to be unfolded and unfolded on the front support frame 110.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. Safe folding ladder, its characterized in that: the folding traction mechanism comprises a front support frame (110) and a rear support frame (120) with one ends hinged with each other, wherein a plurality of cross rods (111) are arranged on the front support frame (110), foot pedals (130) with one ends hinged with the cross rods (111) are respectively arranged on the cross rods (111), connecting rods (131) are respectively hinged between the adjacent foot pedals (130) and at the other end of each foot pedal (130), and a folding traction mechanism is arranged at the end part of each foot pedal (130) at the upper end of the front support frame (110); folding drive mechanism is including gag lever post (121) that is located back support frame (120), is equipped with traction block (231) on gag lever post (121), is equipped with through-hole (611) that are used for gag lever post (121) to pass on traction block (231), still is equipped with on traction block (231) to supply to be used for sliding tray (612) that connecting rod (131) passed.

2. The safety folding ladder of claim 1, wherein: the lower board surface of the pedal plate (130) is provided with a groove (311), the bottom wall of the groove (311) is provided with a lock hook fixing seat (321), the lock hook fixing seat (321) comprises a fixed bottom board (411) fixedly arranged on the bottom wall of the groove (311), the fixed bottom board (411) is provided with hinge plates (421) oppositely arranged, the fixed bottom board (411) is provided with a limiting board (431) matched with the side wall of the groove (311), and the limiting board (431) is provided with a limiting hole (432); a lock hook (221) is hinged between the hinged plates (421), and a limit groove (511) clamped with the limit rod (121) is arranged on the lock hook (221).

3. The safety folding ladder of claim 2, wherein: be equipped with button mechanism (211) on the outer terminal surface of running-board (130), button mechanism (211) are including passing ejector pin (331) that spacing hole (432) stretched into PMKD (411) below department, ejector pin (331) are used for promoting latch hook (221) and break away from gag lever post (121), one end that ejector pin (331) are located PMKD (411) below is equipped with stopper (711) that the diameter is greater than spacing hole (432) diameter, one end that ejector pin (331) are located running-board (130) lateral surface is equipped with button (341), be equipped with between button (341) and running-board (130) lateral wall and be used for promoting ejector pin (331) and keep away from the spring of latch hook, ejector pin (331) pass the spring setting.

4. The safety folding ladder of claim 1, wherein: the upper surfaces of the pedals (130) are provided with non-slip mats.

5. The safety folding ladder of claim 3, wherein: the outer side surface of the spring is sleeved with a sponge sleeve (351).

6. The safety folding ladder of claim 3, wherein: the bottom ends of the front support frame (110) and the rear support frame (120) are respectively provided with a blocking cover (112).

7. The safety folding ladder of claim 1, wherein: plastic spacer bushes are arranged on the cross rod (111) and positioned on two sides of the pedal (130).