CN115839180A

CN115839180A - Portable operation frame and portable fire prevention operation canopy

Info

Publication number: CN115839180A
Application number: CN202211521668.1A
Authority: CN
Inventors: 魏向阳; 曾少豪; 邓健杨; 徐朕; 韦清化; 杨晓峰; 肖海杰
Original assignee: Maintenance and Test Center of Extra High Voltage Power Transmission Co
Current assignee: Maintenance and Test Center of Extra High Voltage Power Transmission Co
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-24

Abstract

The invention relates to a portable operation frame, the exterior of which is used for coating fireproof cloth, and the portable operation frame comprises at least two shelves and a folding assembly, wherein the shelves are sequentially spaced along a first direction, each shelf comprises at least two supporting pieces sequentially spaced along a second direction, and a telescopic assembly arranged between every two adjacent supporting pieces, the telescopic assembly is used for adjusting the distance between every two supporting pieces along the second direction, the second direction is intersected with the first direction, and the folding assembly is arranged between every two adjacent shelves and is used for adjusting the distance between every two shelves along the first direction. The portable operation frame is contracted to the shortest length along the second direction by the aid of the telescopic assembly and is folded along the first direction by the aid of the folding assembly, so that the occupied area of the operation frame is reduced, and the portable operation frame is easy to store. When the foldable work frame needs to be used, the telescopic assembly of the work frame is unfolded along the second direction, and the foldable assembly is unfolded along the first direction, so that the foldable work frame can be used. So, flexible subassembly and folding assembly cooperation make this operation frame easily accomodate and expand in the not unidimensional, have improved work efficiency.

Description

Portable operation frame and portable fire prevention operation canopy

Technical Field

The invention relates to the technical field of power grid equipment maintenance, in particular to a portable operation frame and a portable fireproof operation shed.

Background

At present, the internal firing operation of a power grid is strict, sparks can be generated in the repair, planning and welding operation of a repair transformer in a repair workshop, and if a professional firing workshop does not exist, great ignition risks are generated on the insulation of a transformer body and combustible substances in a workshop area; the outside of the factory can meet the requirements of open ground fire-starting operation, but the environment influence is large, and factors such as precipitation, natural wind and the like can influence the planing and welding quality and the construction period.

However, with the increase of the repair events of large transformers in the power grid plant, the maintenance period is greatly prolonged under the condition of ensuring the safety of facilities and operation in the plant, and the maintenance schedule of the transformers is seriously influenced.

Disclosure of Invention

On the basis, a portable operation frame and a portable fireproof operation shed are provided for solving the problem that the maintenance schedule of the transformer is influenced by greatly prolonging the maintenance period when the repair events of the transformer are increased.

A portable work stand for wrapping a fire-proof cloth on the outside thereof, comprising:

at least two shelves sequentially spaced along a first direction;

each shed frame comprises at least two supporting pieces and a telescopic assembly, wherein the supporting pieces are sequentially spaced along a second direction, the telescopic assembly is arranged between every two adjacent supporting pieces and is used for adjusting the distance between every two adjacent supporting pieces along the second direction, and the second direction is intersected with the first direction;

the folding assembly is arranged between two adjacent shed frames and used for adjusting the distance between the two shed frames along the first direction.

The portable operation frame is contracted to the shortest length along the second direction by the aid of the telescopic assembly and is folded along the first direction by the aid of the folding assembly, so that the occupied area of the operation frame is reduced, and the portable operation frame is easy to store. When the foldable work frame needs to be used, the telescopic assembly of the work frame is unfolded along the second direction, and the foldable assembly is unfolded along the first direction, so that the foldable work frame can be used. So, flexible subassembly and folding assembly cooperation make this operation frame easily accomodate and expand in the not unidimensional, have improved work efficiency.

In one embodiment, the telescopic assembly comprises a telescopic part, the telescopic part comprises a first telescopic part and a second telescopic part, and the first telescopic part is sleeved on the second telescopic part and can slide in the second telescopic part along the second direction.

In one embodiment, the telescopic assembly further comprises a guide assembly, and two ends of the guide assembly are respectively connected to the first telescopic member and the second telescopic member and used for guiding sliding between the first telescopic member and the second telescopic member.

In one embodiment, the guiding assembly includes a first fixing member, a second fixing member and a shaft body, the first fixing member and the second fixing member are respectively rotatably connected to the shaft body, one end of the first fixing member far away from the shaft body is rotatably connected to the first telescopic member, and one end of the second fixing member far away from the shaft body is rotatably connected to the second telescopic member.

In one embodiment, a protruding portion is disposed at one end of the second telescopic member close to the first telescopic member, and the shaft body is slidably disposed on the protruding portion along a third direction perpendicular to a plane formed by the first direction and the second direction.

In one embodiment, the shed frame further comprises an expansion frame and a workbench, and bearing parts are arranged on the expansion frame and the supporting parts and used for erecting the workbench;

in one embodiment, the expansion bracket is pivotally connected to the telescoping assembly and can be rotated to a second orientation.

In one embodiment, the folding assembly includes a folding member and is disposed on the support member in the second direction.

In one embodiment, the folding member comprises two folding portions which are crossed and rotatably connected, and one end of each blade is rotatably connected to the supporting member for controlling the plurality of shelves to be contracted in the first direction.

In one embodiment, the support member has movable wheels thereon for moving the canopy frame.

In one embodiment, the adjacent two supporting members have openings therebetween in the same canopy frame, and between all canopy frames, the openings can define a channel therebetween extending along the first direction.

A portable fire-proof working shed comprises

The portable working stand described above;

the fireproof cloth covers on the portable operation frame, and can be opened along the both ends of first direction for equipment of cominging in and going out, still is equipped with a plurality of vents on the fireproof cloth, is used for guaranteeing that the air is smooth.

The portable fireproof operation shed has the advantages that the telescopic assembly is contracted to the shortest length along the second direction, and meanwhile, the folding assembly is folded along the first direction, so that the occupied area of the operation shed is reduced, and the operation shed is easy to store. When the operation shed needs to be used, the telescopic assembly of the operation shed is unfolded along the second direction, and the folding assembly is unfolded along the first direction, so that the operation shed can be used. So, flexible subassembly and folding assembly cooperation make this operation frame easily accomodate and expand in the not unidimensional, have improved work efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a portable work frame according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the telescoping member of the portable work stand illustrated in FIG. 1;

FIG. 3 is a perspective view of the canopy of the portable work stand illustrated in FIG. 1;

fig. 4 is an enlarged view of the structure at circle a in fig. 1.

1. A shed frame; 11. a support member; 111. a carrier; 112. a movable wheel; 113. an opening; 12. a telescoping assembly; 121. a telescopic member; 1211. a first telescoping member; 1212. a second telescoping member; 1213. a convex portion; 122. a guide assembly; 1221. a first fixing member; 1222. a second fixing member; 1223. a shaft body; 13. an expansion frame; 2. a folding assembly; 21. a folding member; 211. a folding part; a. a first direction; b. a second direction; c. and a third direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In some embodiments, as shown in fig. 1, the present application provides a portable work frame, the exterior of which is used for covering fire-proof cloth, the portable work frame comprises at least two shelves 1, which are arranged at intervals in sequence along a first direction a, wherein each shelf 1 comprises at least two supporting members 11 which are arranged at intervals in sequence along a second direction b, and a telescopic assembly 12 arranged between two adjacent supporting members 11, the telescopic assembly 12 is used for adjusting the interval between two supporting members 11 along the second direction b, and the second direction b intersects with the first direction a; in addition, the portable operation frame further comprises a folding assembly 2 arranged between two adjacent canopy frames 1 and used for adjusting the distance between the two canopy frames 1 along the first direction a.

The portable work frame is folded along the first direction a by the folding assembly 2 while the telescopic assembly 12 is contracted to the shortest length along the second direction b, so that the work frame occupies a small area and is easy to store. Therefore, the telescopic assembly 12 and the folding assembly 2 are matched to enable the operation frame to be easily stored and unfolded in different dimensions, and the working efficiency is improved.

It should be noted that the telescopic assembly 12 can adjust the distance between the two supporting members 11 in the second direction b within its own telescopic range, and there are various embodiments, such as: it may be designed as, but not limited to, a telescopic sleeve, glides in sliding connection in turn, etc.

Meanwhile, the telescopic assembly 12 and the supporting member 11 can be connected in various ways, such as: which may be, but is not limited to, welded, snapped, hinged, etc.

In addition, the folding assemblies 2 can adjust the spacing between the shelves 1 by folding, which may be, but not limited to, a cross brace, etc.

In one embodiment, the first direction a is perpendicular to the second direction b.

Further, as shown in fig. 2, the telescopic assembly 12 includes a telescopic member 121, the telescopic member 121 includes a first telescopic member 1211 and a second telescopic member 1212, the first telescopic member 1211 is disposed through the second telescopic member 1212 and can slide in the second telescopic member 1212 along the second direction b. Thus, the first telescopic member 1211 extends and contracts inside the second telescopic member 1212, so that the telescopic structure is more stable and is not easy to twist and fall off.

The number of the telescopic members 121 is not limited herein, and may be one or more. When the telescopic member 121 is designed to be plural, the telescopic members 121 are fixedly connected to each other, and the connection manner may be, but is not limited to, welding, riveting, and the like.

It should be noted that the sliding of the first telescopic member 1211 and the second telescopic member 1212 relative to each other causes the telescopic member 121 to extend or contract in various ways, which can be, but is not limited to, the following embodiments:

in one embodiment, the first expansion element 1211 and the second expansion element 1212 are both sleeves, wherein an outer diameter of one sleeve is the same as an inner diameter of the other sleeve, and the two sleeves are sleeved with each other and can slide relative to each other;

in one embodiment, one of the first telescopic member 1211 and the second telescopic member 1212 is provided with a protrusion extending along the second direction b and a wing, and the other is provided with a channel extending along the second direction b and capable of interference-fitting with the wing, wherein the protrusion can slide in the channel to enable the first telescopic member 1211 to slide relative to the second telescopic member 1212.

Specifically, as shown in fig. 2, the first expansion element 1211 is disposed through the contraction hole of the second expansion element 1212 and can slide in the second expansion element 1212 to change the distance between the supporting elements 11.

Alternatively, the inner wall of the second telescoping member 1212 may have a variety of shapes that mate with the outer wall of the first telescoping member 1211, which may be, but is not limited to, circular, square, etc.

In addition, as shown in fig. 2, the telescopic member 121 further includes a guide assembly 122, and both ends of the guide assembly 122 are respectively connected to the first telescopic member 1211 and the second telescopic member 1212 for guiding the sliding between the first telescopic member 1211 and the second telescopic member 1212. Guide assembly 122 enables telescopic part 121 more stable at flexible in-process, prolongs telescopic part 121's life to a certain extent, guarantees canopy frame 1 stability at flexible in-process simultaneously.

It should be noted that the guiding assembly 122 is used to guide the extension and retraction direction of the telescopic member 121 and ensure that the extension and retraction processes of the first telescopic member 1211 and the second telescopic member 1212 are stable and can move synchronously with the extension and retraction of the telescopic member 121, and the specific embodiment thereof is various, such as a cross brace, an adjustable nut, and the like.

Alternatively, the guide member 122 may be coupled to the first telescopic member 1211 in various ways, such as, but not limited to, a shaft hole connection, a hinge connection, etc.; there are also various ways to connect the guiding component 122 to the second telescopic element 1212, which may be, but not limited to, a shaft hole connection, a hinge connection, etc.

Further, as shown in fig. 2, the guiding assembly 122 includes a first fixing element 1221, a second fixing element 1222, and a shaft body 1223, the first fixing element 1221 and the second fixing element 1222 are respectively rotatably connected to the shaft body 1223, an end of the first fixing element 1221 away from the shaft body 1223 is rotatably connected to the first expansion element 1211, and an end of the second fixing element 1222 away from the shaft body 1223 is rotatably connected to the second expansion element 1212. Thus, when the telescopic member 121 contracts or extends, the shaft 1223 moves along with the telescopic member, so that an included angle formed by the first fixing member 1221 and the second fixing member 1222 with the shaft 1223 as an intersection point is increased or decreased, and the stability of the first telescopic member 1211 and the second telescopic member 1212 in the process of extending and retracting is ensured by the structure.

It should be noted that, when the telescopic member 121 is contracted, the shaft body 1223 can move along with the contraction, and the first fixing member 1221 and the second fixing member 1222 rotate along the circumferential direction of the shaft body 1223 in the opposite direction, so that the included angle therebetween is reduced; when the telescopic member 121 is extended, the shaft body moves, and the first fixing element 1221 and the second fixing element 1222 are rotated in opposite directions along the circumferential direction of the shaft body 1223 to increase the included angle.

Optionally, there are various ways in which the first fixing member 1221 is connected to the first expansion member 1211, which may be, but not limited to, a shaft hole connection, a hinge connection, etc.; there are various ways to connect the second fixing member 1222 and the second expansion element 1212, which can be, but not limited to, a shaft hole connection, a hinge connection, etc.;

it should be further noted that, the first fixing element 1221 and the second fixing element 1222 are respectively rotatably connected to the shaft body 1223, which means that the shaft body 1223 is rotatably connected to the first fixing element 1221 and the shaft body 1223 is rotatably connected to the second fixing element 1222, and both the first fixing element 1221 and the second fixing element 1222 can rotate around the axis of the shaft body 1223.

In one embodiment, the shaft 1223 is a rivet, which connects the first fixing element 1221 and the second fixing element 1222 together, and the first fixing element 1221 and the second fixing element 1222 can rotate around the axis of the rivet.

In one embodiment, the shaft 1223 is a bolt, the bolt connects the first fixing member 1221 and the second fixing member 1222, and both the first fixing member 1221 and the second fixing member 1222 can rotate around the axis of the bolt.

Further, a protrusion 1213 is formed at one end of the second telescopic member 1212 close to the first telescopic member 1211, and the shaft body 1223 is slidably disposed on the protrusion 1213 along a third direction c perpendicular to a plane formed by the first direction a and the second direction b. Thus, when the first expansion element 1211 and the second expansion element 1212 expand and contract, the shaft body 1223 can move in the third direction c along with the expansion and contraction of the expansion and contraction member 121, the shaft body 1223 is connected by the convex portion 1213 to limit the movement stroke of the shaft body 1223, which is equivalent to limiting the expansion and contraction stroke of the first expansion element 1211 and the second expansion element 1212, thereby preventing the expansion and contraction stroke from being broken by operator misoperation and protecting the operation.

It should be noted that the shaft body 1223 can synchronously move along the third direction c during the extension and retraction process of the extension and retraction member 121, that is, when the extension and retraction process stops, the shaft body 1223 also stops moving; similarly, since the expansion and contraction of the expansion and contraction member 121 can be stopped even when the movement of the shaft body 1223 is stopped, the movement stroke of the shaft body 1223 is limited to limit the expansion and contraction stroke of the expansion and contraction member 121.

Among them, the shaft 1223 is slidably disposed on the protrusion 1213, and there are various methods for limiting the movement stroke of the shaft 1223 by the protrusion 1213, which can be, but are not limited to, the following embodiments:

in one embodiment, the protruding portion 1213 is provided with a strip-shaped hole, a portion of the shaft body 1223 penetrates through the strip-shaped hole and can slide in the strip-shaped hole, when the first expansion element 1211 and the second expansion element 1212 extend to the maximum length, the shaft body 1223 abuts against one end of the strip-shaped hole to limit the shaft body 1223 from moving continuously; when the first and

second expansion members

1211 and 1212 contract to the shortest length, the shaft 1223 abuts against the other end of the strip-shaped hole, so as to limit the shaft 1223 from moving further.

In one embodiment, the connection mode of the shaft 1223 and the protrusion 1213 is a pin structure, the shaft 1223 is fixedly connected to the pin, the pin is provided with a wing, the protrusion 1213 is provided with a groove for the pin to slide, one end of the groove can abut against the wing to limit the sliding stroke of the pin, and the sliding stroke range of the pin in the groove is the movement range of the shaft 1223.

In one embodiment, the present application further provides a first telescopic member 1211, wherein the first telescopic member 1211 is provided with a protrusion extending circumferentially around an end of the first telescopic member 1211 away from the second telescopic member 1212, and when the telescopic member 121 is contracted to the shortest length, the protrusion can abut against the protrusion 1213 of the second telescopic member 1212, so as to prevent the first telescopic member 1211 from being jammed in the second telescopic member 1212 after being contracted, and thus the assembly is not damaged.

In addition, as shown in fig. 3, the canopy frame 1 further includes an expansion frame 13 and a workbench, and the expansion frame 13 and the supporting member 11 are both provided with a bearing member 111 for setting up the workbench. Like this, when pergola 1 expandes and begins to use, a plurality of extension frame 13 and workstation can provide the working face for the operation personnel, make maintenance work more convenient, and efficiency is higher.

It should be noted that the above-mentioned expansion frame 13 is located between the two supporting members 11 of the canopy frame 1 and connected to the telescopic member 121, and the expansion frame 13 can be extended and retracted, and when the expansion frame 13 is extended to the maximum length, the end of the expansion frame 13 can be supported on the ground.

Optionally, the expansion frame 13 may have various configurations, which may be, but not limited to, the following embodiments:

in one embodiment, the expansion frame 13 is composed of two telescopic joints, wherein one telescopic joint has a small hole at the end connected with the other telescopic joint, and the other telescopic joint and the telescopic joint are provided with fasteners, when the expansion frame 13 is expanded to the maximum length, the fasteners of the telescopic joints are fastened in the small holes, so that the expansion frame 13 keeps the maximum length.

In one embodiment, the expansion frame 13 is two steel plates in a strip shape, one of the steel plates is provided with a sliding rail along the expansion direction of the expansion frame 13, the other steel plate is provided with a key which is in interference fit with the sliding rail and can slide along the sliding rail, a lock catch is arranged at the connecting part of the two steel plates, and when the expansion frame 13 extends to the maximum length, the lock catch is locked to fix the two steel plates, so that the expansion frame 13 keeps the maximum length.

It should be noted that the bearing components 111 on the supporting component 11 and the bearing components 111 on the expansion frame 13 are located on the same horizontal plane, and a plurality of groups of horizontal bearing components 111 are arranged on the supporting component 11 and the expansion frame 13 at intervals, so that the operator can keep horizontal when working on the workbench, and the safety of the operator is ensured.

In one embodiment, carriage 111 is a platform extending circumferentially around support 11 and a platform extending circumferentially around expansion bracket 13.

Optionally, the connecting manner of the bearing member 111 and the supporting member 11 is various, and it may be, but not limited to, welding, bolting, etc.; there are various ways of connecting the carrier 111 to the expansion frame 13, which may be, but not limited to, welding, bolting, etc.

In addition, the above-mentioned workbench can be matched with the carrier 111, so that the workbench can be set on the carrier 111.

Further, the expansion frame 13 is rotatably connected to the telescopic assembly 12 and can rotate to the second direction b. When the portable work frame does not need to be provided with a workbench, the expansion frame 13 can be upwards rotated to the second direction b, the internal space of the portable work frame is released, and the work of an operator is facilitated.

It should be noted that, when the portable work frame does not need to set up the work table, the expansion frame 13 can be retracted and rotated upward to the second direction b to be fixed, the internal space of the portable work frame is released, and when the work table needs to be set up, the expansion frame 13 is rotated downward and extended to the maximum length, so that the expansion frame 13 is supported on the ground, and then the work table can be set up on the carrying member 111.

Alternatively, there are various ways of pivotally connecting the expansion bracket 13 to the telescoping assembly 12, such as, but not limited to, a shaft-hole connection, a hinge connection, etc.

In one embodiment, as shown in fig. 4, the folding assembly 2 comprises a folding member 21 and is provided at an end of the support member 11 in the second direction b. Thus, the canopy frame 1 can be contracted or expanded in the first direction a, saving storage space when the canopy frame 1 is not needed.

It should be noted that the above-mentioned folding members 21 are disposed between the supporting members 11 of the two shelves 1, and each folding member 21 can make the two shelves 1 connected thereto contract or expand along the second direction b.

Alternatively, the folding member 21 and the supporting member 11 may be connected in various ways, such as but not limited to a shaft hole connection, a bolt connection, etc.

Further, as shown in fig. 4, the folding member 21 includes two folding portions 211 which are cross-rotatably connected, and one end of each folding portion 211 is rotatably connected to the supporting member 11 for controlling the plurality of shelves 1 to be contracted in the first direction a. In this way, the folding or unfolding of the canopy frame 1 is achieved by the rotation of the folding portion 211, so that the structure is easy to operate and maintain, and when not too many canopy frames 1 are required, the redundant canopy frames 1 can be detached by detaching the folding member 21 at any time.

It should be noted that the one end of each folding portion 211 is rotatably connected to the support 11 means that, in the two crossed and rotatably connected folding portions 211 on the same folding member 21, one folding portion 211 is connected to the support 11, and one end of the other folding portion 211 is connected to the other support 11, that is, the two folding portions 211 are respectively rotatably connected to different supports 11.

It should also be noted that two adjacent folding members 21 may be rotatably connected or not connected by their folding portions 211.

In addition, the support 11 is provided with movable wheels 112 for moving the canopy frame 1. The movable wheels 112 are arranged on the supporting member 11, so that the supporting member 11 can slide smoothly in the process of extending and retracting the telescopic assembly 12, the supporting member 11 can slide smoothly in the process of unfolding or folding the folding assembly 2, and the movement of the working frame can be facilitated.

It should be noted that the movable wheel 112 can roll to move the supporting member 11 and can also be locked to fix the supporting member 11.

In one embodiment, the movable wheels 112 are universal wheels.

Further, in the same canopy frame 1, there are openings 113 between two adjacent supporting members 11, and between all canopy frames 1, between the respective openings 113, a passage extending in the first direction a can be defined for accessing the equipment. The channel enables the transformer to be directly transported to the middle of the shed frame 1, facilitates the development of operation and is favorable for ventilation.

It should be further noted that the opening 113 is a "door" shaped opening 113 formed by two supporting members 11 and a telescopic assembly 12 of one canopy frame 1, and the width of the opening 113 can be changed along with the extension and retraction of the telescopic assembly 12; the channel is formed by a plurality of door-shaped openings 113 formed by arranging a plurality of shelves 1 at intervals along the first direction a, and the length of the channel can be changed along with the folding and unfolding of the folding assembly 2.

In addition, this application still provides a portable fire prevention operation canopy, including foretell portable operation frame and fire prevention cloth, this fire prevention cloth covers on portable operation frame, and just can open in the passageway both ends of first direction an along portable operation frame for the discrepancy equipment still is equipped with a plurality of vents on the fire prevention cloth, is used for guaranteeing that the air is smooth. Therefore, when the fireproof shed is used for operation, the fireproof cloth can effectively block sputtering of sparks, and meanwhile, the ventilation opening enables air in the shed to be smooth, so that the safety of operating personnel is guaranteed.

It should be further noted that the fireproof cloth can be opened at the two ends of the channel, which means that the fireproof cloth can be provided with open type openings at the two ends of the channel in a cutting mode, and can be opened independently to open the channel; the size, shape and number of the ventilation openings can be set according to the operation content, and the size, shape and number are not limited in the present application.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A portable work frame, the outside of which is used for wrapping fireproof cloth, characterized in that the portable work frame comprises:

at least two shelves sequentially spaced along a first direction;

and the folding assembly is arranged between every two adjacent shed frames and used for adjusting the distance between the two shed frames along the first direction.

2. The portable work stand of claim 1, wherein said telescoping assembly comprises a telescoping member, said telescoping member comprising a first telescoping member and a second telescoping member, said first telescoping member nested within said second telescoping member and slidable within said second telescoping member in said second direction.

3. A portable work head according to claim 2, wherein the telescopic assembly further comprises a guide assembly, both ends of the guide assembly being connected to the first and second telescopic members, respectively, for guiding the sliding movement between the first and second telescopic members.

4. The portable work stand of claim 3, wherein the guiding assembly comprises a first fixing member, a second fixing member and a shaft, the first fixing member and the second fixing member are respectively rotatably connected to the shaft, an end of the first fixing member away from the shaft is rotatably connected to the first telescopic member, and an end of the second fixing member away from the shaft is rotatably connected to the second telescopic member.

5. A portable work head according to claim 4, wherein the second telescopic member is provided with a protrusion at an end thereof adjacent to the first telescopic member, and the shaft body is slidably arranged on the protrusion along a third direction perpendicular to a plane formed by the first direction and the second direction.

6. The portable working frame according to any one of claims 1 to 5, wherein the frame further comprises an expansion frame and a workbench, and the expansion frame and the support member are provided with bearing members for erecting the workbench;

and/or the expansion frame is rotatably connected with the telescopic assembly and can rotate to the second direction.

7. A portable work stand according to claim 1, wherein the folding assembly comprises a folding member and is provided to the support member in the second direction.

8. A portable work stand according to claim 6, wherein said folding member includes two cross-pivotally connected folds, one end of each of said folds being pivotally connected to said support member for controlling the plurality of said shelves to collapse in said first direction.

9. A portable work stand according to claim 1, wherein the support member has movable wheels thereon for moving the canopy frame.

10. A portable work stand according to claim 1, wherein there are openings between adjacent two support members in the same canopy frame, and between all of the canopy frames, a channel extending in the first direction is definable between each of the openings.

11. A portable fire-proof working shed is characterized by comprising

The portable working stand described above;

the fireproof cloth covers the portable operation frame, two ends in the first direction can be opened for equipment to enter and exit, and a plurality of ventilation openings are formed in the fireproof cloth.