CN213573860U - Ladder with telescopic handrails - Google Patents

Abstract

The utility model discloses a handrail telescopic ladder, which comprises a support frame, a telescopic bench and two handrails, wherein the support frame comprises two frames, the telescopic bench comprises a plurality of benches, two holding parts of the first bench of the telescopic bench are respectively sleeved on a connecting rod in a rotating way, and two ends of the connecting rod penetrate out of linear chutes of the corresponding frames, so that the connecting rod can slide in the linear chutes and can rotate; the one end rigid coupling of two handrails is in the both ends of connecting rod, and is packing up the state, and flexible bench is accomodate between two frames, and two handrails are accomodate in the outside of two frames, and from packing up state to the state of opening, roll-off and upset downwards in flexible bench follows two frames drive the connecting rod simultaneously and slide to the second end of linear spout and rotate and predetermine the angle, make two handrails upwards overturn. The utility model discloses the flexible ladder of handrail can realize opening or pack up the function of opening or packing up the handrail when flexible bench.

Description

Ladder with telescopic handrails

Technical Field

The utility model relates to a telescopic ladder especially relates to a handrail telescopic ladder that the ladder is opened simultaneously can be followed to the handrail.

Background

Telescopic ladders are commonly used in applications where they are suspended from above to below, for example, on boats, and are commonly provided for convenience in diving, swimming or work by boat crews. The telescopic ladder generally comprises a support frame and telescopic ladder sections, wherein the first ladder section of the telescopic ladder sections is rotatably connected with the support frame through sliding shafts, and the sliding shafts can slide in frame linear sliding grooves of the support frame, so that the telescopic ladder sections can slide out and be opened. When the telescopic ladder section is used, the supporting frame is fixedly arranged on the yacht, and the telescopic ladder section slides out of the supporting frame and can be used by personnel after being opened. When not in use, the telescopic ladder section can be stored and fixed in the support frame after being folded. However, such a telescopic ladder needs to be used with handrails when in use, because when a person goes from underwater to a boat along a ladder section, the person needs to exert force with the aid of the handrails to finish the boarding action, and in the prior art, two handrails corresponding to both hands of the person are usually fixed on the boat, so that the handrails occupy space when not in use and influence the overall beauty of the boat. There are also cases where no handrail is provided, in which case there is a technical problem that it is inconvenient for a person to board a boat when going from under water along a flight to a boat.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a handrail telescopic ladder convenient to board that flexible bench can be followed and open simultaneously or pack up.

In order to solve the technical problem, the utility model discloses telescopic ladder of handrail includes braced frame and flexible bench, braced frame includes two frames, flexible bench includes a plurality of bench, and every bench includes two portions of gripping that the interval set up and connects in two the portion of trampling between the portion of gripping, the partly of two portions of gripping of every below bench can be followed two portions of gripping of top bench and slided in or the roll-off, its characterized in that: the handrail telescopic ladder further comprises two handrails, the uppermost ladder section in the telescopic ladder sections is a first ladder section, two holding parts of the first ladder section are rotatably sleeved on a connecting rod, the connecting rod is arranged between the two frames, one end of the connecting rod penetrates out of a linear sliding groove of one frame, and the other end of the connecting rod penetrates out of a linear sliding groove of the other frame, so that the connecting rod can slide in the linear sliding groove and can rotate; one end of one handrail is fixedly connected with one end of the connecting rod, and one end of the other handrail is fixedly connected with the other end of the connecting rod; in a retracted state, the connecting rod is arranged at the first end of the linear sliding groove, the telescopic ladder section is accommodated between the two side frames, one handrail is accommodated at the outer side of one side frame, and the other handrail is accommodated at the outer side of the other side frame; from a folding state to an opening state, the telescopic ladder sections slide out of the two frames and turn downwards by a first angle, and the connecting rod slides to the second end of the linear sliding groove and rotates by a preset angle, so that the two handrails turn upwards by a second angle.

Furthermore, a second end of the linear sliding groove of each frame is provided with a fixing piece, the fixing piece is fixedly connected with the frame, the whole handrail is arc-shaped, the other end of the handrail is supported on the fixing piece in a folded state, and the middle part of the handrail protrudes downwards; from the retracted state to the opened state, the armrest is turned upwards and positioned in a second angle state under the limit of the fixing piece.

Further, the frame comprises a vertical plate and a horizontal plate, the linear sliding groove is arranged in the middle of the vertical plate and extends along the length direction of the vertical plate, and the horizontal plate is connected to the top edge of the vertical plate; the horizontal plates of the two frames are arranged in a back-to-back manner, and the handrails are arranged below the horizontal plates of the corresponding frames.

Furthermore, the fixing piece is an L-shaped bending rod, one free end of the bending rod is fixedly connected with the horizontal plate, the other free end of the bending rod is fixedly connected with the vertical plate, and the top of the horizontal part of the bending rod is an arc surface which protrudes upwards.

Further, the fixing piece comprises an L-shaped bending plate and a supporting limiting block, one free edge of the bending plate is fixedly connected with the horizontal plate, and the other free edge of the bending plate is fixedly connected with the vertical plate; the supporting limiting block is fixed on the horizontal part of the bending plate; the cross section of the handrail is circular or oval, and an arc-shaped groove for holding the handrail is formed on the supporting limiting block.

Furthermore, a convex part is formed at the bottom of the handrail close to the connecting rod, and in an opening state, the convex part is positioned in the arc-shaped groove of the support limiting block.

Furthermore, shoulder blocks are formed at positions, close to the end portions, of the two ends of the connecting rod, sleeves are formed at the end portions, used for connecting, of the two handrails, and the handrails are locked to the corresponding shoulder blocks of the connecting rod through nuts.

Furthermore, pin shafts are formed on the outer sides of two holding parts of the lowermost ladder section of the telescopic ladder section, hooks are formed on the vertical plates of the two frames, one pin shaft corresponds to one hook, and the pin shafts are connected to the corresponding hooks in a hanging mode.

Furthermore, still include the pin, the both ends rigid coupling of pin is in two on the frame, just the pin is close to the second end setting of the linear spout of frame is held and is located the below position of linear spout.

Furthermore, flanges are arranged on the outer peripheral sides of the end parts of the insertion ends of the two holding parts of each lower ladder section, and stop blocks are arranged on the inner peripheral sides of the end parts of the inserted ends of the adjacent upper ladder sections, and the flanges can be hung on the stop blocks.

The utility model has the advantages that: through two handrail fixed connection at the both ends of connecting rod, two portions of gripping of the first bench of flexible bench rotate the cover and locate on the connecting rod to slide the connecting rod and wear to locate in the linear spout of two frames of braced frame, can realize opening or pack up the function of opening or packing up the handrail when flexible bench, flexible bench is when opening promptly, the handrail also reaches the state of opening, flexible bench is when packing up, the handrail also reaches the state of packing up. Therefore, when the ladder is opened for use, the handrails can be opened together, and when a guest uses the telescopic ladder section for boarding, the guest can hold the handrails with hands, so that the guest can conveniently board; when the ladder is not being retracted, the handrails are retracted along with the ladder.

Drawings

FIG. 1 is a perspective view of the retractable handrail ladder of the present invention in an open state;

FIG. 2 is a side view of the telescopic ladder of the present invention in an open state;

FIG. 3 is a top view of the retractable armrest ladder of the present invention in an open position;

FIG. 4 is a rear view of the retractable armrest ladder of the present invention in an open position;

FIG. 5 is a schematic view of the retractable handrail ladder according to the present invention in a retracted state;

the following description is made with reference to the accompanying drawings:

1-frame, 11-linear sliding groove, 12-vertical plate, 121-hook, 13-horizontal plate, 2-ladder section, 21-holding part, 211-pin shaft, 22-treading part, 3-handrail, 31-convex part, 4-connecting rod, 5-fixing part, 51-bending plate, 52-supporting limiting block, 521-arc groove, 6-nut and 7-stop lever.

Detailed Description

In order to clearly understand the technical contents of the present invention, the following examples are given in detail for the purpose of better understanding the contents of the present invention and are not intended to limit the scope of the present invention. The components in the structures of the drawings of the embodiments are not necessarily to scale, and do not represent actual relative sizes of the structures in the embodiments.

FIG. 1 is a perspective view of the retractable handrail ladder of the present invention in an open state; FIG. 2 is a side view of the telescopic ladder of the present invention in an open state; FIG. 3 is a top view of the retractable armrest ladder of the present invention in an open position; FIG. 4 is a rear view of the retractable armrest ladder of the present invention in an open position; FIG. 5 is a schematic view of the retractable handrail ladder according to the present invention in a retracted state; as shown in fig. 1, 2, 3, 4 and 5, an armrest telescopic ladder comprises a support frame and telescopic ladder sections, wherein the support frame comprises two frames 1, the telescopic ladder sections comprise a plurality of ladder sections 2, each ladder section comprises two holding parts 21 arranged at intervals and a tread part 22 connected between the two holding parts, and one part of each of the two holding parts of each lower ladder section can slide in or slide out of the two holding parts of the upper ladder section, and the handrail telescopic ladder is characterized in that: the handrail telescopic ladder further comprises two handrails 3, the uppermost ladder section in the telescopic ladder sections is a first ladder section, two holding parts of the first ladder section are rotatably sleeved on a connecting rod 4, the connecting rod is arranged between the two frames, one end of the connecting rod penetrates out of a linear sliding groove 11 of one frame, and the other end of the connecting rod penetrates out of a linear sliding groove of the other frame, so that the connecting rod can slide in the linear sliding groove and can rotate; one end of one handrail is fixedly connected with one end of the connecting rod, and one end of the other handrail is fixedly connected with the other end of the connecting rod; in a retracted state, the connecting rod is arranged at the first end of the linear sliding groove, the telescopic ladder section is accommodated between the two side frames, one handrail is accommodated at the outer side of one side frame, and the other handrail is accommodated at the outer side of the other side frame; from a folding state to an opening state, the telescopic ladder sections slide out of the two frames and turn downwards by a first angle, and the connecting rod slides to the second end of the linear sliding groove and rotates by a preset angle, so that the two handrails turn upwards by a second angle. Through two handrail fixed connection at the both ends of connecting rod, two portions of gripping of the first bench of flexible bench rotate the cover and locate on the connecting rod to slide the connecting rod and wear to locate in the linear spout of frame, can realize opening or pack up the function of opening or packing up the handrail when flexible bench, flexible bench is when opening promptly, and the handrail also reaches the state of opening, and flexible bench is when packing up, and the handrail also reaches the state of packing up. Therefore, when the ladder is opened for use, the handrails can be opened together, and when a guest uses the telescopic ladder section for boarding, the guest can hold the handrails with hands, so that the guest can conveniently board; when the ladder is not being retracted, the handrails are retracted along with the ladder.

Preferably, referring to fig. 1 and 2, a fixing member 5 is disposed at a second end of the linear sliding groove of each side frame, the fixing member is fixedly connected with the side frame, the armrest is integrally arc-shaped, in a retracted state, the other end of the armrest is supported on the fixing member, and the middle of the armrest protrudes downwards; from the retracted state to the opened state, the armrest is turned upwards and positioned in a second angle state under the limit of the fixing piece. Through set up the mounting in the second end department of linear chute, because handrail middle part downwardly protruding stretches, at the opening in-process, the handrail can produce the interference effect with the mounting to change the state behind the handrail roll-off, realize promptly that the handrail upwards overturns and fixes a position the function at the second angle. During specific implementation, the middle part of the handrail can be bent twice to form a structure protruding downwards, preferably, one section of the handrail connected with the connecting rod is designed into a circular arc shape, so that the turning angle of the handrail after being opened meets the requirement of being held by a person.

Preferably, referring to fig. 1, the frame includes a vertical plate 12 and a horizontal plate 13, the linear sliding groove is disposed in the middle of the vertical plate and extends along the length direction of the vertical plate, and the horizontal plate is connected to the top edge of the vertical plate; the horizontal plates of the two frames are arranged in a back-to-back manner, and the handrails are arranged below the horizontal plates of the corresponding frames. Like this, the frame includes vertical board and horizontal plate, and vertical board is convenient for form linear spout, realizes opening or the direction and the limiting displacement who packs up. The horizontal plate is used for fixedly connecting the ship body and can play a role in covering the handrail.

Preferably, the fixing part is an L-shaped bending rod, one free end of the bending rod is fixedly connected with the horizontal plate, the other free end of the bending rod is fixedly connected with the vertical plate, and the top of the horizontal part of the bending rod is an arc surface which protrudes upwards. As a preferred embodiment, the fixing element may be in the form of a bending rod, preferably, the bending rod is a cylindrical rod, and the armrest is also cylindrical, and the armrest is turned upwards under the action of the bending rod during the opening process, and can be more smoothly opened and retracted by sliding between the cylindrical surface and the cylindrical surface.

Preferably, referring to fig. 2 and 3, the fixing member includes an L-shaped bending plate 51 and a supporting limiting block 52, one free edge of the bending plate is fixedly connected with the horizontal plate, and the other free edge of the bending plate is fixedly connected with the vertical plate; the supporting limiting block is fixed on the horizontal part of the bending plate; the cross section of the handrail is circular or oval, and an arc-shaped groove 521 for holding the handrail is formed on the supporting limiting block. Like this, at open mode, the handrail upset back is close to the position of connecting rod and is just supported in the arc recess of supporting the stopper, can lock the handrail. The supporting limiting block can be made of nylon and the like, and the scratch preventing effect can be achieved. The bending plate is L-shaped and can be fixedly connected with the vertical plate and the horizontal plate of the frame. Preferably, the bending plate and the frame are made of metal materials and can be fixed in a welding mode.

Preferably, referring to fig. 2, a protrusion 31 is formed at a position of the bottom of the armrest near the connecting rod, and in the open state, the protrusion is positioned in the arc-shaped groove of the support stopper. Like this, at open mode, can make the convex part butt just in the arc recess that supports the stopper after the handrail upset, lock the handrail, avoid the handrail to rock, influence the result of use.

Preferably, the positions of the two ends of the connecting rod, which are close to the end portions, form shoulder blocks, the end portions of the two handrails, which are used for connection, form sleeves, and the handrails are locked to the corresponding shoulder blocks of the connecting rod through nuts 6. Like this, can realize the fixed connection of connecting rod and handrail with the shoulder of connecting rod department of keeping off with the one end lock solid of handrail through the nut. Like this, the connecting rod when the rotation of spout, the handrail can upwards overturn predetermined second angle, for example can make the handrail be vertical state, is 90 degrees contained angles with the braced frame that the level set up, and the personnel of being convenient for grasp the handrail and go to the ship. But is limited thereto and may be designed at other angles. The shoulder of the connecting rod can be realized by reducing the diameter by turning.

Preferably, the outer sides of two holding parts of the lowermost ladder section of the telescopic ladder section are respectively provided with a pin shaft 211, the vertical plates of the two frames are respectively provided with a hook 121, one pin shaft corresponds to one hook, and in a retracted state, the pin shafts are hung on the corresponding hooks. Like this, through the cooperation of articulating of round pin axle and couple, can realize the fixed of flexible bench in the state of packing up, prevent that flexible bench is non-artificial to be opened.

Preferably, still include pin 7, the both ends rigid coupling of pin is in two on the frame, just the pin is close to the second end setting of the linear spout of frame is held and is located the below position of linear spout. Like this, at the open mode, can carry out the backstop to flexible bench, fix a position flexible bench, the angle that the flexible bench was opened is restricted.

Optionally, a fitting piece is fixedly arranged at the end of the insertion end of each lower ladder section, and the outer periphery of the fitting piece has an anti-slip function and is in frictional contact with the inner periphery of the holding part. Like this, because the fitting piece has anti-skidding effect, under the effect of the frictional force between the periphery side that the fitting piece has anti-skidding effect and the internal periphery side of the portion of gripping, each bench of ladder can not be opened under the effect of gravity, only can rely on external force just can open, therefore, can effectively avoid the unsafe factor when each bench roll-off of ladder is opened, and simultaneously, when opening the ladder under the external force effect, under the effect of frictional force, the portion of gripping of below bench closely cooperates with the portion of gripping of top bench, when rotating the ladder, can effectively solve the problem of the spacious action because of each bench cooperation is not hard up and is produced.

Optionally, the outer peripheral sides of the ends of the insertion ends of the two holding portions of each lower ladder section are provided with flanges, the inner peripheral sides of the ends of the inserted ends of the adjacent upper ladder sections are provided with stoppers, and the flanges can be hung on the stoppers. Optionally, the fitting piece is a plug, one end of the plug is fixedly sleeved in the insertion end of the lower ladder section, and the outer peripheral side face of the other end of the plug has an anti-slip effect and is in frictional contact with the inner peripheral side face of the holding portion. Optionally, the mating member is a ring, an inner circumferential side of the ring is fixedly connected with an outer circumferential side of the insertion end of the lower ladder section, and the outer circumferential side of the ring has an anti-slip function and is in frictional contact with an inner circumferential side surface of the holding portion.

The above embodiments are described in detail with reference to the accompanying drawings, and those skilled in the art will be able to make various modifications and changes to the above embodiments without departing from the spirit of the present invention.

Claims (10)

1. The utility model provides a telescopic ladder with handrails, includes braced frame and flexible bench, braced frame includes two frames (1), flexible bench includes a plurality of bench (2), and every bench includes two portions of gripping (21) that the interval set up and connects in two trample portion (22) between the portion of gripping, and the partly of two portions of gripping of every below bench can be followed two portions of gripping of top bench and slided in or the roll-off, its characterized in that: the handrail telescopic ladder further comprises two handrails (3), the uppermost ladder section in the telescopic ladder sections is a first ladder section, two holding parts of the first ladder section are rotatably sleeved on a connecting rod (4), the connecting rod is arranged between the two frames, one end of the connecting rod penetrates out of a linear sliding groove (11) of one frame, and the other end of the connecting rod penetrates out of a linear sliding groove of the other frame, so that the connecting rod can slide in the linear sliding groove and can rotate; one end of one handrail is fixedly connected with one end of the connecting rod, and one end of the other handrail is fixedly connected with the other end of the connecting rod; in a retracted state, the connecting rod is arranged at the first end of the linear sliding groove, the telescopic ladder section is accommodated between the two side frames, one handrail is accommodated at the outer side of one side frame, and the other handrail is accommodated at the outer side of the other side frame; from a folding state to an opening state, the telescopic ladder sections slide out of the two frames and turn downwards by a first angle, and the connecting rod slides to the second end of the linear sliding groove and rotates by a preset angle, so that the two handrails turn upwards by a second angle.

2. The telescopic handrail ladder of claim 1, wherein: a fixing piece (5) is arranged at the second end of the linear sliding groove of each frame, the fixing piece is fixedly connected with the frame, the handrail is integrally arc-shaped, the other end of the handrail is supported on the fixing piece in a folded state, and the middle part of the handrail protrudes downwards; from the retracted state to the opened state, the armrest is turned upwards and positioned in a second angle state under the limit of the fixing piece.

3. The telescopic handrail ladder of claim 2, wherein: the frame comprises a vertical plate (12) and a horizontal plate (13), the linear sliding groove is arranged in the middle of the vertical plate and extends along the length direction of the vertical plate, and the horizontal plate is connected to the top edge of the vertical plate; the horizontal plates of the two frames are arranged in a back-to-back manner, and the handrails are arranged below the horizontal plates of the corresponding frames.

4. A telescopic handrail ladder as claimed in claim 3, wherein: the fixing piece is an L-shaped bending rod, one free end of the bending rod is fixedly connected with the horizontal plate, the other free end of the bending rod is fixedly connected with the vertical plate, and the top of the horizontal part of the bending rod is an upward convex arc surface.

5. A telescopic handrail ladder as claimed in claim 3, wherein: the fixing piece comprises an L-shaped bending plate (51) and a supporting limiting block (52), one free edge of the bending plate is fixedly connected with the horizontal plate, and the other free edge of the bending plate is fixedly connected with the vertical plate; the supporting limiting block is fixed on the horizontal part of the bending plate; the cross section of the handrail is circular or oval, and an arc-shaped groove (521) for holding the handrail is formed on the supporting limiting block.

6. The telescopic handrail ladder of claim 5, wherein: a convex part (31) is formed at the bottom of the handrail close to the connecting rod, and in an opening state, the convex part is positioned in the arc-shaped groove of the supporting limiting block.

7. The telescopic handrail ladder of claim 5, wherein: the positions, close to the end parts, of the two ends of the connecting rod form shoulder blocks (41), the end parts, used for connecting, of the two handrails form sleeves (32), and the handrails are locked to the corresponding shoulder blocks of the connecting rod through nuts (6).

8. A telescopic handrail ladder as claimed in claim 3, wherein: the outer sides of two holding parts of the lowermost ladder section of the telescopic ladder section are respectively provided with a pin shaft (211), hooks (121) are respectively formed on the vertical plates of the two frames, one pin shaft corresponds to one hook, and the pin shafts are connected to the corresponding hooks in a hanging mode in a folded state.

9. The telescopic handrail ladder of claim 1, wherein: still include pin (7), the both ends rigid coupling of pin is in two on the frame, just the pin is close to the second end setting of the linear spout of frame is held and is located the below position of linear spout.

10. The telescopic handrail ladder of claim 1, wherein: flanges are arranged on the outer peripheral sides of the ends of the insertion ends of the two holding parts of each lower ladder section, and stop blocks are arranged on the inner peripheral sides of the ends of the inserted ends of the adjacent upper ladder sections and can be hung on the stop blocks.

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