Telescopic escape device and system

Abstract

The invention provides a telescopic escape device and system, and discloses a telescopic escape device, the telescopic escape device comprises a vertical ladder mechanism and a buckle mechanism, the vertical ladder mechanism comprises a fixed guide rail and a movable vertical ladder, the movable vertical ladder is coaxially installed on the fixed guide rail through a limiting mechanism, and the buckle mechanism comprises a contraction state stop lever, an extension state stop lever and an elastic buckle. The contraction state stop lever and the extension state stop lever are both installed on the fixed guide rail, the contraction state stop lever is located over the extension state stop lever, the elastic buckle is installed on the movable vertical ladder, and the elastic buckle can be buckled on the contraction state stop lever and can also be buckled on the extension state stop lever; the invention further discloses a telescopic escape system which comprises a main machine platform, the main machine platform is located over the ground, and the fixed guide rail in the telescopic escape device is installed on the main machine platform. According to the invention, no influence is caused to ground workers, and the workers on the host platform can be rapidly withdrawn to a ground safety zone.

Description

Technical Field

[0001] The present invention relates to the technical field of escape devices, and in particular, to a telescopic escape device and system. Background Art

[0002] On self-propelled mechanical equipment such as boom type, bridge type, gantry type, drum type reclaimers or excavators in steel mills, docks, mines and other sites, in accordance with relevant regulations, safety codes, standards and other requirements, in the event of emergencies such as fires or equipment damage on the equipment, escape devices need to be provided to facilitate the rapid escape of staff to the safe ground area. Generally, this escape device is a fixed vertical ladder, but the fixed vertical ladder will occupy a certain space. In the normal working state of the equipment, the fixed vertical ladder will run synchronously with the self-propelled mechanical equipment, which is extremely likely to cause harm to ground staff. Especially in developed countries such as Australia, according to the requirements of relevant safety codes, this risk is not allowed to occur.

[0003] The present invention aims to develop a telescopic escape device. In the normal working state of the equipment, the telescopic escape device is in a retracted state and will not cause any impact on ground staff during the operation of the equipment. When an emergency occurs on the equipment, the staff on the equipment can manually extend the telescopic escape device to make it in an extended state, and quickly withdraw to the safe ground area through the telescopic escape device. The staff who return to the ground can manually push the telescopic escape device back to the retracted state by themselves, meeting the requirements of safety codes and standards. Summary of the Invention

[0004] In view of the above-mentioned technical problems, a telescopic escape device and system are provided.

[0005] The technical means adopted by the present invention are as follows:

[0006] In a first aspect, a telescopic escape device includes a vertical ladder mechanism and a buckle mechanism; the vertical ladder mechanism includes a fixed guide rail and a movable vertical ladder, the axis of the fixed guide rail is perpendicular to the horizontal plane, the movable vertical ladder is coaxially installed on the fixed guide rail, and the movable vertical ladder can move relative to the fixed guide rail along its axis direction; the buckle mechanism includes a retracted state stop bar, an extended state stop bar and an elastic buckle, the axes of the retracted state stop bar and the extended state stop bar are both parallel to the horizontal plane, the retracted state stop bar and the extended state stop bar are both installed on the fixed guide rail, the retracted state stop bar is located directly above the extended state stop bar, the elastic buckle is installed on the movable vertical ladder, and the elastic buckle can be buckled on both the retracted state stop bar and the extended state stop bar; the fixed guide rail is detachably installed on the main machine platform.

[0007] Further, the elastic buckle includes a buckle base, a buckle body and a return torsion spring; a torsion spring mounting shaft is provided on the buckle base, the axis of the torsion spring mounting shaft is parallel to the horizontal plane, a retaining groove is formed on the buckle body, the buckle body is coaxially mounted on the torsion spring mounting shaft, the buckle body can rotate relative to the buckle base about its axis, the return torsion spring is coaxially sleeved outside the torsion spring mounting shaft, one end of the return torsion spring close to the buckle base is mounted on the buckle base, and one end of the return torsion spring close to the buckle body is mounted on the buckle body; the buckle base is mounted on the movable vertical ladder, and the retaining groove can be buckled on both the retracted state retaining rod and the extended state retaining rod.

[0008] Further, the movable vertical ladder is coaxially mounted on the fixed guide rail through a limiting mechanism; the limiting mechanism includes a limiting slider and a limiting chute, the limiting slider is a columnar structure with an axis perpendicular to the horizontal plane and a T-shaped cross section in the horizontal section, the side wall of the limiting slider is attached to the groove wall of the limiting chute, and the limiting slider can move relative to the limiting chute along its axis; the limiting slider is coaxially mounted on the fixed guide rail, and the limiting chute is coaxially formed on the movable vertical ladder.

[0009] Further, a monitoring mechanism is further included; the monitoring mechanism includes a proximity switch; the proximity switch is mounted on the fixed guide rail and is located between the retracted state retaining rod and the extended state retaining rod in the vertical direction; the elastic buckle is made of a metal material, and the elastic buckle can enter the sensing area of the proximity switch driven by the movable vertical ladder and can also leave the sensing area of the proximity switch driven by the movable vertical ladder.

[0010] Further, a protection mechanism is further included; the protection mechanism includes a protective cage, and the protective cage is a cylindrical structure with an axis perpendicular to the horizontal plane and both ends open; the protective cage is mounted on the fixed guide rail and is coaxially sleeved outside the fixed guide rail.

[0011] In a second aspect, a telescopic escape system includes a main machine platform, the main machine platform is located directly above the ground, and further includes the telescopic escape device according to any one of the first aspect; the fixed guide rail in the telescopic escape device is mounted on the main machine platform; when the retaining groove in the telescopic escape device is buckled on the extended state retaining rod, the height difference between the bottom end of the movable vertical ladder and the ground is less than or equal to the set maximum safe landing distance.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. In the present invention, when the self-propelled mechanical equipment is operating, the elastic buckle is buckled on the retracted state stop bar, and the vertical ladder mechanism is in the retracted state. Even if the present invention operates synchronously with the self-propelled mechanical equipment, it will not cause any impact on the ground staff. When an emergency occurs on the self-propelled mechanical equipment, the elastic buckle is buckled on the extended state stop bar, and the vertical ladder mechanism is in the extended state. The staff on the main machine platform can quickly withdraw to the ground safety zone through the present invention. The staff who return to the ground can manually push the vertical ladder mechanism in the present invention back to the retracted state by themselves, meeting the requirements of safety codes and standards.

[0014] 2. In the present invention, when it is necessary to change the elastic buckle from being buckled on the extended state stop bar to being buckled on the retracted state stop bar, first remove the buckle body and the retaining groove from the extended state stop bar. After the torque of the return torsion spring returns to zero, then move the buckle body and the retaining groove upward until the retaining groove is buckled on the retracted state stop bar. When it is necessary to change the elastic buckle from being buckled on the retracted state stop bar to being buckled on the extended state stop bar, first remove the buckle body and the retaining groove from the retracted state stop bar. After the torque of the return torsion spring returns to zero, then move the buckle body and the retaining groove downward to the lower side of the extended state stop bar, and finally move the buckle body and the retaining groove upward until the retaining groove is buckled on the extended state stop bar.

[0015] 3. In the present invention, the fixed guide rail and the movable vertical ladder are installed together through the limit slider and the limit chute, so that the movable vertical ladder will not fall off the fixed guide rail.

[0016] 4. In the present invention, the proximity switch is used to monitor whether the vertical ladder mechanism is in the retracted state or the extended state.

[0017] 5. In the present invention, the staff on the vertical ladder mechanism is protected by the protective cage to prevent the staff from falling off the vertical ladder mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the overall structure diagram of a telescopic escape device and system of the present invention when the vertical ladder mechanism is in the retracted state;

[0020] Figure 2 It is the overall structure diagram of a telescopic escape device and system of the present invention when the vertical ladder mechanism is in the extended state;

[0021] Figure 3 This is the overall structure diagram of the elastic buckle in a telescopic escape device and system of the present invention;

[0022] Figure 4 This is the overall flowchart of changing the elastic buckle from being buckled on the retracted state lever to being buckled on the extended state lever in the present invention;

[0023] Figure 5 This is the overall flowchart of changing the elastic buckle from being buckled on the extended state lever to being buckled on the retracted state lever in the present invention;

[0024] Figure 6 This is the overall structure diagram of the limit slider and limit chute in a telescopic escape device and system of the present invention;

[0025] In the figure: 1 - fixed guide rail; 2 - proximity switch; 3 - protective cage; 4 - movable vertical ladder; 5 - main machine platform; 6 - extended state lever; 7 - retracted state lever; 8 - elastic buckle; 9 - limit chute; 10 - limit slider; 801 - buckle base; 802 - return torsion spring; 803 - buckle body; 804 - retaining groove. Detailed implementation manners

[0026] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way restricts the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] It should be noted that the terms used here are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to the present invention. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0029] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention: the orientation terms "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0031] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. can be used here to describe the spatial positional relationships between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0032] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without otherwise stating, the above words have no special meanings, and thus should not be construed as limiting the protection scope of the present invention.

[0033] Embodiment 1:

[0034] As shown Figures 1 to 6 in the figure, a telescopic escape device includes a vertical ladder mechanism and a buckle mechanism; the vertical ladder mechanism includes a fixed guide rail 1 and a movable vertical ladder 4, the axis of the fixed guide rail 1 is perpendicular to the horizontal plane, the movable vertical ladder 4 is coaxially installed on the fixed guide rail 1, and the movable vertical ladder 4 can move relative to the fixed guide rail 1 along its axis direction; the buckle mechanism includes a retracted state stop bar 7, an extended state stop bar 6 and an elastic buckle 8, the axes of the retracted state stop bar 7 and the extended state stop bar 6 are both parallel to the horizontal plane, the retracted state stop bar 7 and the extended state stop bar 6 are both installed on the fixed guide rail 1, the retracted state stop bar 7 is located directly above the extended state stop bar 6, the elastic buckle 8 is installed on the movable vertical ladder 4, and the elastic buckle 8 can be buckled on either the retracted state stop bar 7 or the extended state stop bar 6; the fixed guide rail 1 is detachably installed on the main machine platform 5.

[0035] Specifically, two fixed guide rails 1 are arranged in the horizontal direction, and both sides of the movable vertical ladder 4 in the horizontal direction are installed on the two fixed guide rails 1 respectively.

[0036] In addition, two buckle mechanisms are arranged in the horizontal direction. The two retracted state stop bars 7 in the two buckle mechanisms have the same height and are respectively installed on the two fixed guide rails 1. The two extended state stop bars 6 in the two buckle mechanisms have the same height and are respectively installed on the two fixed guide rails 1. The two elastic buckles 8 in the two buckle mechanisms have the same height and are respectively installed on both sides of the movable vertical ladder 4 in the horizontal direction.

[0037] In this embodiment, the elastic buckle 8 includes a buckle base 801, a buckle body 803 and a return torsion spring 802; a torsion spring mounting shaft is provided on the buckle base 801, the axis of the torsion spring mounting shaft is parallel to the horizontal plane, a stop groove 804 is opened on the buckle body 803, the buckle body 803 is coaxially installed on the torsion spring mounting shaft, the buckle body 803 can rotate relative to the buckle base 801 around its axis, the return torsion spring 802 is coaxially sleeved outside the torsion spring mounting shaft, one end of the return torsion spring 802 close to the buckle base 801 is installed on the buckle base 801, and one end of the return torsion spring 802 close to the buckle body 803 is installed on the buckle body 803; the buckle base 801 is installed on the movable vertical ladder 4, and the stop groove 804 can be buckled on either the retracted state stop bar 7 or the extended state stop bar 6.

[0038] Specifically, when it is necessary to change the elastic buckle 8 from being buckled on the extended state stop bar 6 to being buckled on the retracted state stop bar 7, as Figure 5As shown, first remove the buckle body 803 and the retaining groove 804 from the extended state lever 6. After the torque of the return torsion spring 802 returns to zero, then move the buckle body 803 and the retaining groove 804 upward until the retaining groove 804 engages with the retracted state lever 7.

[0039] In addition, when it is necessary to change the elastic buckle 8 from engaging with the retracted state lever 7 to engaging with the extended state lever 6, as Figure 4 shown, first remove the buckle body 803 and the retaining groove 804 from the retracted state lever 7. After the torque of the return torsion spring 802 returns to zero, then move the buckle body 803 and the retaining groove 804 downward to below the extended state lever 6, and finally move the buckle body 803 and the retaining groove 804 upward until the retaining groove 804 engages with the extended state lever 6.

[0040] In this embodiment, as Figure 6 shown, the movable vertical ladder 4 is coaxially installed on the fixed guide rail 1 through a limiting mechanism; the limiting mechanism includes a limiting slider 10 and a limiting chute 9. The limiting slider 10 is a columnar structure with an axis perpendicular to the horizontal plane and a T-shaped cross-section in the horizontal plane. The side wall of the limiting slider 10 fits with the groove wall of the limiting chute 9, and the limiting slider 10 can move relative to the limiting chute 9 along its axis direction; the limiting slider 10 is coaxially installed on the fixed guide rail 1, and the limiting chute 9 is coaxially opened on the movable vertical ladder 4.

[0041] Specifically, limiting sliders 10 are installed on both fixed guide rails 1, and limiting chutes 9 are opened on both sides of the movable vertical ladder 4 in the horizontal direction.

[0042] In this embodiment, a monitoring mechanism is further included; the monitoring mechanism includes a proximity switch 2; the proximity switch 2 is installed on the fixed guide rail 1 and is located between the retracted state lever 7 and the extended state lever 6 in the vertical direction; the elastic buckle 8 is made of a metal material, and the elastic buckle 8 can enter the sensing area of the proximity switch 2 driven by the movable vertical ladder 4 and can also leave the sensing area of the proximity switch 2 driven by the movable vertical ladder 4.

[0043] In this embodiment, a protection mechanism is further included; the protection mechanism includes a protective cage 3. The protective cage 3 is a cylindrical structure with an axis perpendicular to the horizontal plane and both ends open; the protective cage 3 is installed on the fixed guide rail 1 and coaxially sleeved outside the fixed guide rail 1.

[0044] Embodiment 2:

[0045] As Figures 1 to 6As shown, a telescopic escape system includes a host platform 5 which is directly above the ground, and also includes the telescopic escape device described in any one of Embodiment 1; the fixed guide rail 1 in the telescopic escape device is installed on the host platform 5; when the retaining groove 804 in the telescopic escape device is buckled on the extended state lever 6, the height difference between the bottom end of the movable vertical ladder 4 and the ground is less than or equal to the set maximum safe landing distance.

[0046] Specifically, the maximum safe landing distance is set to 40 centimeters.

[0047] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A telescopic escape device, characterized in that, It includes a vertical ladder mechanism and a buckle mechanism; The vertical ladder mechanism includes a fixed guide rail (1) and a movable vertical ladder (4). The axis of the fixed guide rail (1) is perpendicular to the horizontal plane. The movable vertical ladder (4) is coaxially installed on the fixed guide rail (1), and the movable vertical ladder (4) can move relative to the fixed guide rail (1) along its axis direction; The buckle mechanism includes a retracted state stop bar (7), an extended state stop bar (6) and an elastic buckle (8). The axes of the retracted state stop bar (7) and the extended state stop bar (6) are both parallel to the horizontal plane. The retracted state stop bar (7) and the extended state stop bar (6) are both installed on the fixed guide rail (1). The retracted state stop bar (7) is located directly above the extended state stop bar (6). The elastic buckle (8) is installed on the movable vertical ladder (4), and the elastic buckle (8) can be buckled on either the retracted state stop bar (7) or the extended state stop bar (6); The fixed guide rail (1) is detachably installed on the main machine platform (5).

2. The telescopic escape device according to claim 1, wherein, The elastic buckle (8) includes a buckle base (801), a buckle body (803) and a return torsion spring (802); The buckle base (801) is provided with a torsion spring mounting shaft. The axis of the torsion spring mounting shaft is parallel to the horizontal plane. A stop groove (804) is formed on the buckle body (803). The buckle body (803) is coaxially installed on the torsion spring mounting shaft. The buckle body (803) can rotate relative to the buckle base (801) around its axis. The return torsion spring (802) is coaxially sleeved outside the torsion spring mounting shaft. One end of the return torsion spring (802) close to the buckle base (801) is installed on the buckle base (801), and one end of the return torsion spring (802) close to the buckle body (803) is installed on the buckle body (803); The buckle base (801) is installed on the movable vertical ladder (4), and the stop groove (804) can be buckled on either the retracted state stop bar (7) or the extended state stop bar (6).

3. The telescopic escape device according to claim 1, characterized in that, The movable vertical ladder (4) is coaxially installed on the fixed guide rail (1) through a limiting mechanism; The limiting mechanism includes a limiting slider (10) and a limiting chute (9). The limiting slider (10) is a columnar structure with an axis perpendicular to the horizontal plane and a T-shaped cross-section in the horizontal plane. The side wall of the limiting slider (10) fits with the groove wall of the limiting chute (9). The limiting slider (10) can move relative to the limiting chute (9) along its axis direction; The limiting slider (10) is coaxially installed on the fixed guide rail (1), and the limiting chute (9) is coaxially formed on the movable vertical ladder (4).

4. A telescopic escape device according to claim 1, characterized in that, It also includes a monitoring mechanism; The monitoring mechanism includes a proximity switch (2); The proximity switch (2) is installed on the fixed guide rail (1) and is located vertically between the retracted state stop bar (7) and the extended state stop bar (6); the elastic buckle (8) is made of a metal material, and the elastic buckle (8) can enter and leave the sensing area of the proximity switch (2) driven by the movable vertical ladder (4).

5. A telescopic escape device according to claim 1, characterized in that, It further includes a protection mechanism; The protection mechanism includes a protective cage (3), and the protective cage (3) is a cylindrical structure with an axis perpendicular to the horizontal plane and both ends open; The protective cage (3) is installed on the fixed guide rail (1) and coaxially sleeved outside the fixed guide rail (1).

6. A telescopic escape system, comprising a host platform (5), the host platform (5) being directly above the ground, characterized in that, It further includes the telescopic escape device according to any one of claims 1 to 5; The fixed guide rail (1) in the telescopic escape device is installed on the main machine platform (5); When the slot (804) in the telescopic escape device is buckled on the extended state stop bar (6), the height difference between the bottom end of the movable vertical ladder (4) and the ground is less than or equal to the set maximum safe landing distance.

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