CN221027521U - Work platform and work machine - Google Patents

Abstract

The utility model relates to the technical field of ascending equipment, and provides an operation platform and an operation machine. The operation platform comprises an operation platform, a telescopic bracket and a telescopic driving mechanism; the operation platform comprises a bottom plate and a fence which is arranged on the upper side of the bottom plate in a surrounding mode, and an inlet and an outlet are formed in one side of the fence; the telescopic support is arranged at the inlet and outlet positions and comprises a pedal and a protective guard, the pedal is connected with the bottom plate, the protective guard is arranged at two sides of the pedal and is respectively connected with the fence and the pedal, and the pedal and the protective guard are suitable for performing telescopic actions close to or far from the pedal; the telescopic driving mechanism is suitable for driving the telescopic bracket to perform telescopic action. According to the utility model, the telescopic bracket is arranged on one side of the operation platform, the telescopic bracket is driven to extend through the telescopic driving mechanism, so that the telescopic bracket can be stretched into a narrow and complex space for use, and the space occupied by the operation platform can be reduced after the telescopic bracket is driven to shorten through the telescopic driving mechanism, so that the movement is more flexible and stable; therefore, the applicability can be effectively improved, and the use is more convenient.

Description

Work platform and work machine

Technical Field

The utility model relates to the technical field of ascending equipment, in particular to a working platform and a working machine.

Background

The existing working machinery with the ascending capacity (such as an ascending platform fire truck, an electric power construction ascending truck and the like) is provided with a working bucket which can move and ascend, and the working bucket can realize the bearing and conveying functions of articles or personnel, but is influenced by factors such as the size of the working bucket, the lifting structure angle and flexibility of the working bucket, and the like, so that the working machinery is difficult to meet the use requirements of foot part sites and has poor adaptability.

Taking a climbing platform fire truck as an example, the climbing truck rescue work bucket is large in size, and the boom has limited flexibility, so that the following situations can not be met:

1. in a fire disaster of a high-rise building, when people are trapped in a room due to smoke and fire, the working bucket is difficult to extend into the room for rescue;

2. The part of the high building is provided with a plurality of units, the outer layer of the building structure is concave-convex, for rescue work of personnel in the building concave, the traditional climbing platform rescue work bucket is limited in that the site can not reach the building concave, and the rescue range is limited;

3. In complex scenarios, the work bucket cannot rescue through a catwalk.

Disclosure of utility model

The utility model provides a working platform and a working machine, which are used for solving the problems that in the prior art, a working bucket is influenced by factors such as the size of the working bucket, the lifting structure angle and flexibility of the working bucket, the use requirement of a foot part field is difficult to meet, and the adaptability is poor.

The utility model provides an operation platform, comprising:

The operation platform comprises a bottom plate and a fence which is arranged on the upper side of the bottom plate in a surrounding mode, and an inlet and an outlet are formed in one side of the fence;

The telescopic support is arranged at the inlet and outlet positions and comprises a pedal and a guard rail, the pedal is connected with the bottom plate, the guard rail is arranged at two sides of the pedal and is respectively connected with the rail and the pedal, and the pedal and the guard rail are suitable for telescopic actions close to or far away from the pedal;

the telescopic driving mechanism is suitable for driving the telescopic bracket to perform telescopic action.

According to the working platform provided by the utility model, the pedal comprises at least two sections of telescopic plates, wherein the 1 st section of telescopic plate is arranged on the bottom plate in a sliding manner, and adjacent telescopic plates are matched in a sliding manner;

The telescopic driving mechanism is suitable for driving the telescopic plates of the section 1 to slide along the bottom plate and is suitable for driving the adjacent telescopic plates to slide relatively.

According to the utility model, the telescopic driving mechanism comprises:

The first motor is fixedly arranged on the bottom plate;

the gear is arranged on the rotating shaft of the first motor;

And the rack is connected with the telescopic plate in the section 1 and meshed with the gear.

According to the utility model, the telescopic driving mechanism comprises:

the second motor is fixedly arranged on the bottom plate;

The wire winding roller is arranged on the rotating shaft of the second motor;

the guide pulley is rotatably arranged at one end of the nth section of the expansion plate, which is far away from the bottom plate;

One end of the first inhaul cable is fixedly connected with the bottom plate, and the other end of the first inhaul cable bypasses the guide pulley and is connected with one end, close to the bottom plate, of the n+1th section of the expansion plate;

One end of the second inhaul cable is connected with the wire winding roller, and the other end of the second inhaul cable is connected with the (n+1) th section of expansion plate;

Wherein n is a positive integer.

According to the working platform provided by the utility model, two or more second inhaul cables are arranged, one end of each second inhaul cable is connected with the same wire collecting roller, and the other end of each second inhaul cable is connected with different expansion plates.

According to the working platform provided by the utility model, the pedal further comprises at least one supporting rod, the supporting rod is of a telescopic structure, one end of the supporting rod is fixedly connected with the bottom plate, and the other end of the supporting rod is connected with one end, far away from the bottom plate, of the pedal.

According to the utility model, the working platform further comprises:

The protective safety belt is arranged at one end of the protective guard, which deviates from the operation platform, two ends of the protective safety belt are respectively connected with two sides of the protective guard, and at least one end of the protective safety belt is detachably connected with the protective guard.

According to the utility model, the working platform further comprises:

The clamp is arranged at the movable end of the telescopic bracket and is suitable for moving along with the movable end of the telescopic bracket.

According to the working platform provided by the utility model, the guard rail comprises a pair of scissor type telescopic structures which are respectively arranged at two sides of the pedal, one end upper side of each scissor type telescopic structure is in sliding connection with the rail, the lower side of each scissor type telescopic structure is fixedly connected with the rail, and the other end lower side of each scissor type telescopic structure is fixedly connected with the pedal.

The utility model also provides a working machine comprising the working platform.

According to the working platform and the working machine, the telescopic support is arranged on one side of the working platform, the telescopic support is driven to extend through the telescopic driving mechanism, so that the telescopic support can extend into a narrow and complex space for use, the space occupied by the working platform can be reduced after the telescopic support is driven to shorten through the telescopic driving mechanism, and the movement is more flexible and stable; therefore, the applicability can be effectively improved, and the use is more convenient.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a construction of a work platform in an extended state of a telescopic bracket according to the present utility model;

Fig. 2 is a schematic structural view of a working platform provided by the utility model in a retracted state of a telescopic bracket;

FIG. 3 is a schematic view showing a back structure of a work platform according to the present utility model;

FIG. 4 is a second schematic view showing a back structure of a work platform according to the present utility model;

FIG. 5 is an enlarged view at A in FIG. 3;

FIG. 6 is an enlarged view at B in FIG. 4;

FIG. 7 is an enlarged view of FIG. 4 at C;

reference numerals:

100. An operating platform; 101. a bottom plate; 102. a fence; 103. a slip joint;

200. A telescopic bracket; 201. a pedal; 202. a guard rail; 203. a support rod; 204. a clamp; 205. a protective harness;

300. A telescopic driving mechanism; 301. a telescopic rod; 302. a first motor; 303. a gear; 304. a rack; 305. a second motor; 306. a wire winding roller; 307. a fixing seat; 308. a first cable; 309. a second guy cable; 310. a guide pulley; 311. a first connector; 312. and a second connecting piece.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The working platform of the present utility model is described below with reference to fig. 1 to 7, and fig. 1 is a schematic structural view of the working platform in a telescopic bracket extended state; fig. 2 is a schematic structural view of a working platform provided by the utility model in a retracted state of a telescopic bracket; FIG. 3 is a schematic view of a back structure of a work platform according to the present utility model; FIG. 4 is a schematic diagram showing a back structure of a work platform according to the present utility model; FIG. 5 is an enlarged view at A in FIG. 3; FIG. 6 is an enlarged view at B in FIG. 4; fig. 7 is an enlarged view at C in fig. 4.

Referring to fig. 1 to 4, the work platform includes an operation platform 100, a telescopic bracket 200, and a telescopic driving mechanism 300; the operation platform 100 comprises a bottom plate 101 and a fence 102 which is arranged on the upper side of the bottom plate 101 in a surrounding manner, wherein an inlet and an outlet are arranged on one side of the fence 102; the telescopic support 200 is arranged at an inlet and outlet position, the telescopic support 200 comprises a pedal 201 and a guard rail 202, the pedal 201 is connected with the bottom plate 101, the guard rail 202 is arranged at two sides of the pedal 201 and is respectively connected with the fence 102 and the pedal 201, and the pedal 201 and the guard rail 202 are suitable for performing telescopic actions close to or far from the pedal 201; the telescopic driving mechanism 300 is adapted to drive the telescopic bracket 200 to perform a telescopic action.

In this embodiment, the pedal 201 and the guard rail 202 perform telescoping operation synchronously while the telescoping support 200 is driven to telescope by the telescoping drive mechanism 300. After the telescopic bracket 200 is extended, an operator can move to the telescopic bracket 200 from the operation platform 100 to perform such works as fire rescue or equipment installation; after the telescopic bracket 200 is retracted, the space occupied by the operation platform is reduced, and the operation platform can be conveniently moved. The length of the telescopic bracket 200 can be adjusted, and the width of the telescopic bracket is smaller, so that the telescopic bracket can adapt to more complex environments and has better applicability.

The base plate 101 may be, for example, a rectangular, circular or oval plate structure, with the base plate 101 being horizontal during use. The rail 102 is formed by a plurality of rod bodies which are arranged in a staggered manner, and is arranged along the edge of the bottom plate 101 in a random manner, and the bottom of the rail 102 and the bottom plate 101 can be fixed by welding, bolting or the like. The rail 102 is provided with a notch on one side of the bottom plate 101, which constitutes an access opening.

In some embodiments of the present utility model, the pedal 201 includes at least two expansion plates, each of which may be a patterned steel plate. The 1 st section of expansion plate is arranged on the bottom plate 101 in a sliding way, and adjacent expansion plates are matched in a sliding way; the telescopic driving mechanism 300 is suitable for driving the 1 st telescopic plate to slide along the bottom plate 101, and is suitable for driving the adjacent telescopic plates to slide relatively.

Optionally, the pedal 201 is provided with a sliding groove at the inlet and outlet positions, and the 1 st expansion plate is inserted into the sliding groove to realize sliding connection between the 1 st expansion plate and the bottom plate 101.

Optionally, the expansion plates adopt a tubular structure, and adjacent expansion plates are mutually sleeved so as to realize sliding connection fit between the adjacent expansion plates. Of course, the telescopic plates can also be connected in a sliding manner through a matching structure of a sliding groove and a sliding rail.

In this embodiment, the telescopic driving mechanism 300 drives the 1 st section of telescopic plate to slide along the bottom plate 101 and drives the adjacent telescopic plates to slide relatively, so that the telescopic function of the driving pedal 201 can be realized.

In some embodiments of the present utility model, the guard rail 202 includes a pair of scissor-type telescopic structures disposed on both sides of the pedal 201, wherein one end of each scissor-type telescopic structure is slidably connected to the rail 102, the lower side is fixedly connected to the rail 102, and the other end of each scissor-type telescopic structure is fixedly connected to the pedal 201.

Specifically, sliding connectors 103 are respectively arranged at positions of two sides of the inlet and the outlet of the fence 102, vertical sliding grooves are formed in the sliding connectors 103, one end lower side of the scissor-fork type telescopic structure is fixedly connected with the fence 102 in a welding mode, a clamping mode or a bolt connection mode, and sliding pins are arranged on the upper side of the scissor-fork type telescopic structure and are arranged in the sliding grooves in a sliding mode. The underside of the other end of the scissor jack is fixedly connected with one end of the pedal 201 away from the base plate 101 by means of welding, clamping or bolting, for example.

In this embodiment, the pedal 201 can drive the guard rail 202 to stretch and retract synchronously in the process of driving the pedal 201 to stretch and retract through the stretching driving mechanism 300.

The scissor-fork type telescopic structure in this embodiment may be replaced by at least two vertical rods and a telescopic transverse rod disposed between the vertical rods, which is not described herein.

In some embodiments of the present utility model, the telescopic driving mechanism 300 includes a telescopic rod 301, the telescopic rod 301 includes a plurality of sliding rods, the number of the sliding rods is the same as that of the telescopic plates of the pedals 201, the sliding rods are fixedly connected with the corresponding pedals 201 through connecting pins, and one side of each sliding rod is provided with a mounting groove.

Referring to fig. 5-7, in some embodiments of the utility model, a telescoping drive mechanism 300 includes a first motor 302, a gear 303, and a rack 304; the first motor 302 is fixedly arranged on the bottom plate 101; the gear 303 is arranged on the rotating shaft of the first motor 302; the rack 304 is connected to the section 1 expansion plate and is meshed with the gear 303.

Specifically, the first motor 302 is fixedly disposed on the lower side of the base plate 101 through a motor base, a rotating shaft of the first motor 302 is perpendicular to the extending and retracting direction of the pedal 201, the gear 303 is coaxially fixed on the rotating shaft of the first motor 302, the rack 304 is disposed along the extending and retracting direction of the pedal 201 and is fixedly connected with a slide bar corresponding to the 1 st section of expansion plate, and the rack 304 is meshed with the gear 303.

When the first motor 302 operates, the gear 303 is driven to rotate, so that the rack 304 is driven to slide along the telescopic direction of the pedal 201, the rack 304 drives the 1 st section of telescopic plate to slide, and the sliding direction of the 1 st section of telescopic plate can be controlled by controlling the rotating direction of the first motor 302.

In some embodiments of the present utility model, the telescopic drive mechanism 300 includes a second motor 305, a take-up roller 306, a guide pulley 310, a first cable 308, and a second cable 309; the second motor 305 is fixedly arranged on the bottom plate 101; the wire winding roller 306 is arranged on the rotating shaft of the second motor 305; the guide pulley 310 is rotatably arranged at one end of the nth section of expansion plate far away from the bottom plate 101; one end of the first inhaul cable 308 is fixedly connected with the bottom plate 101, and the other end of the first inhaul cable bypasses the guide pulley 310 and is connected with one end, close to the bottom plate 101, of the n+1th expansion plate; one end of the second inhaul cable 309 is connected with the wire collecting roller 306, and the other end of the second inhaul cable is connected with the n+1st expansion plate; wherein n is a positive integer.

In this embodiment, the second motor 305 is fixedly disposed on the lower side of the base plate 101 through the motor base, and the rotation axis of the second motor 305 is perpendicular to the extending direction of the pedal 201, so that, for convenience in arrangement, the second motor 305 and the first motor 302 may be disposed separately on two sides of the extension rod 301, and the mounting slot of the extension rod 301 faces the second motor 305. The take-up roller 306 is coaxially fixed to the rotation shaft of the second motor 305.

The underside of the base plate 101 is provided with a fixing seat 307, and the fixing seat 307 is provided with a fixing ring for connecting a stay cable. The first connecting piece 311 and the second connecting piece 312 are arranged at one end, close to the bottom plate 101, in the mounting groove of the sliding rod, and the first connecting piece 311 and the second connecting piece 312 can be in a hook structure or an annular structure.

If the number of expansion plates is m, where m is a positive integer greater than n, the number of guide pulleys 310, first cables 308 and second cables 309 are all m-1. Taking m=3 as an example, the number of the guide pulleys 310, the first cables 308 and the second cables 309 is 2. One of the guide pulleys 310 is rotatably arranged at one end of the 1 st expansion plate, which is away from the bottom plate 101, and the other guide pulley 310 is rotatably arranged at one end of the 2 nd expansion plate, which is away from the bottom plate 101. One end of one first inhaul cable 308 is connected with the fixing seat 307, and the other end of the first inhaul cable is connected with a first connecting piece 311 on a sliding rod corresponding to the 2 nd section of expansion plate; one end of the other first inhaul cable 308 is connected with the fixing seat 307, and the other end is connected with the first connecting piece 311 on the sliding rod corresponding to the 3 rd telescopic plate. One end of one second inhaul cable 309 is connected with the wire receiving roller 306, and the other end of the second inhaul cable is connected with a second connecting piece 312 on a sliding rod corresponding to the 2 nd section of expansion plate; one end of the other second inhaul cable 309 is connected with the wire receiving roller 306, and the other end is connected with a second connecting piece 312 on the sliding rod corresponding to the 3 rd expansion plate.

When the section 1 expansion plate extends outwards, the guide pulley 310 on the section 1 expansion plate is driven to move in the direction away from the bottom plate 101, and as one end of the first stay rope 308 is connected with the mounting seat and is fixed in position, when the guide pulley 310 moves in the direction away from the bottom plate 101, the other end of the first stay rope 308 is close to the guide pulley 310, so that the section 2 expansion plate can be driven to extend out of the section 1 expansion plate; when the 1 st expansion plate is retracted, the guide pulley 310 on the 1 st expansion plate is driven to move towards the direction close to the bottom plate 101, so that the first inhaul cable 308 is loosened, the second inhaul cable 309 is rolled by operating the second motor 305, and the 2 nd expansion plate can be pulled to retract into the 1 st expansion plate through the second inhaul cable 309. The telescopic principle of other telescopic plates is the same as that of the 2 nd telescopic plate, and the description is omitted here.

According to the working platform of the embodiment of the utility model, two or more second inhaul cables 309 are provided, one end of each second inhaul cable 309 is connected with the same wire collecting roller 306, and the other end is connected with different expansion plates. The winding of two or more second inhaul cables 309 can be simultaneously realized through the same wire winding roller 306, so that the number of the second motors 305 and the second wire winding rollers 306 can be reduced, the overall weight is effectively reduced, the production cost is reduced, and the safety is improved.

It should be noted that, when each second cable 309 is connected to the same take-up roller 306, because of different arrangement angles of the second cables 309, in order to avoid that the second cables 309 are too tight due to mismatching between the winding speed of a portion of the second cables 309 and the retractable distance of the corresponding expansion plate, the tightening degree of the second cables 309 when the corresponding expansion plate extends can be flexibly designed, for example, a portion of the second cables 309 are in a loose state when the corresponding expansion plate extends.

It will be appreciated that the above embodiments are merely illustrative of one form of actuation for telescoping the pedal 201, and that in some other embodiments, it is within the scope of the present application to replace it with, for example, multiple hydraulic cylinders or multiple lead screw drive arrangements.

In some embodiments of the present utility model, the pedal 201 further includes at least one supporting rod 203, where the supporting rod 203 is in a telescopic structure, and one end of the supporting rod 203 is fixedly connected to the base plate 101, and the other end is connected to a second telescopic plate located at the end.

The two support rods 203 are arranged on two sides of the pedal 201, the two ends of the support rods 203 are fixedly connected with the bottom plate 101 and the pedal 201 through structures such as pipe clamps, and the support rods 203 synchronously stretch along with the pedal 201 when the pedal 201 stretches. The support rod 203 can support and guide the pedal 201, and improve the structural strength and the telescopic stability.

Optionally, the supporting rod 203 is provided with a plurality of rod bodies corresponding to the telescopic plates of the pedal 201, and each rod body is fixedly connected with the corresponding telescopic plate.

Referring back to fig. 1 and fig. 2, in some embodiments of the present utility model, the operation platform further includes a safety belt 205, the safety belt 205 is disposed at an end of the guard rail 202 facing away from the operation platform 100, two ends of the safety belt 205 are respectively connected to two sides of the guard rail 202, and at least one end of the safety belt 205 is detachably connected to the guard rail 202.

Alternatively, the guard belt 205 is a reelable guard belt structure or an elastic belt structure, and when one end of the guard belt is detached from the guard rail 202, the guard belt 205 is reeled or retracted to one side of the guard rail 202.

Optionally, at least one end of the protective safety belt 205 is detachably connected with the guard 202 by a clamping or hanging manner.

Optionally, the guard belt 205 is provided with two or more in the vertical direction.

In this embodiment, personnel can be avoided dropping by setting up the protective safety belt 205, and when one end of the protective safety belt 205 is required to be far away from the operation platform 100 through the telescopic bracket 200, one end of the telescopic bracket 200 can be detached, so that an opening is formed at one end of the telescopic bracket 200 far away from the operation platform 100.

In some embodiments of the present utility model, the work platform further comprises a clamp 204, wherein the clamp 204 is disposed at the movable end of the telescopic bracket 200, and the clamp 204 is adapted to move along with the movable end of the telescopic bracket 200.

The clamp 204 may be a hydraulic clamp 204, a pneumatic clamp 204, a manual clamp 204, or the like, and is not specifically limited herein.

Alternatively, a plurality of clamps 204 are provided, and a plurality of clamps 204 are provided at intervals in a direction perpendicular to the extending and contracting direction of the pedal 201, for example, two clamps 204 are provided, and two clamps 204 are located on both sides of the pedal 201 in the direction perpendicular to the extending and contracting direction of the pedal 201.

In this embodiment, the clamp 204 can be used to clamp windowsill guard rails, thin wall boards, etc., so as to maintain stability and safety of rescue state of the operation platform, and reduce personnel collision caused by shaking of the operation platform.

The embodiment of the utility model also provides a working machine, which comprises the working platform.

The working platform in this embodiment may be, for example, a fire truck, an electric power construction truck, etc., and is not particularly limited herein, in other words, any working platform capable of using the embodiment of the present utility model shall be within the scope of the present utility model.

Optionally, the working machine further comprises a boom, the movable end of the boom is fixedly connected with the working platform, and the boom is suitable for driving the working platform to move.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A work platform, comprising:

The operation platform comprises a bottom plate and a fence which is arranged on the upper side of the bottom plate in a surrounding mode, and an inlet and an outlet are formed in one side of the fence;

The telescopic support is arranged at the inlet and outlet positions and comprises a pedal and a guard rail, the pedal is connected with the bottom plate, the guard rail is arranged at two sides of the pedal and is respectively connected with the rail and the pedal, and the pedal and the guard rail are suitable for telescopic actions close to or far away from the pedal;

the telescopic driving mechanism is suitable for driving the telescopic bracket to perform telescopic action.

2. The work platform of claim 1, wherein the pedal comprises at least two sections of expansion plates, wherein the 1 st section of expansion plate is slidably arranged on the bottom plate, and adjacent expansion plates are in sliding connection and fit;

The telescopic driving mechanism is suitable for driving the telescopic plates of the section 1 to slide along the bottom plate and is suitable for driving the adjacent telescopic plates to slide relatively.

3. The work platform of claim 2, wherein the telescoping drive mechanism comprises:

The first motor is fixedly arranged on the bottom plate;

the gear is arranged on the rotating shaft of the first motor;

And the rack is connected with the telescopic plate in the section 1 and meshed with the gear.

4. A work platform according to claim 2 or 3, wherein the telescopic drive mechanism comprises:

the second motor is fixedly arranged on the bottom plate;

The wire winding roller is arranged on the rotating shaft of the second motor;

the guide pulley is rotatably arranged at one end of the nth section of the expansion plate, which is far away from the bottom plate;

One end of the first inhaul cable is fixedly connected with the bottom plate, and the other end of the first inhaul cable bypasses the guide pulley and is connected with one end, close to the bottom plate, of the n+1th section of the expansion plate;

One end of the second inhaul cable is connected with the wire winding roller, and the other end of the second inhaul cable is connected with the (n+1) th section of expansion plate;

Wherein n is a positive integer.

5. The work platform of claim 4, wherein the second cables are provided with two or more, one end of each second cable is connected to the same wire winding roller, and the other end is connected to a different expansion plate.

6. The work platform of claim 2, wherein the pedal further comprises at least one support rod, the support rod is of a telescopic structure, one end of the support rod is fixedly connected with the bottom plate, and the other end of the support rod is connected with one end of the pedal away from the bottom plate.

7. The work platform of claim 1, further comprising:

The protective safety belt is arranged at one end of the protective guard, which deviates from the operation platform, two ends of the protective safety belt are respectively connected with two sides of the protective guard, and at least one end of the protective safety belt is detachably connected with the protective guard.

8. The work platform of claim 1, further comprising:

The clamp is arranged at the movable end of the telescopic bracket and is suitable for moving along with the movable end of the telescopic bracket.

9. The work platform of claim 1, wherein the guard rail comprises a pair of scissor fork type telescopic structures which are respectively arranged at two sides of the pedal, one end upper side of each scissor fork type telescopic structure is in sliding connection with the rail, the lower side of each scissor fork type telescopic structure is fixedly connected with the rail, and the other end lower side of each scissor fork type telescopic structure is fixedly connected with the pedal.

10. A work machine comprising a work platform according to any one of claims 1 to 9.