CN214778080U - Tank container - Google Patents

Abstract

The utility model relates to a tank container, which comprises a frame, a ladder stand and a grab bar; the crawling ladder is arranged on the side surface of the frame; the grab bar is rotatably arranged on the frame and can rotate upwards to a first state that the grab bar protrudes out of the top surface of the frame or rotate downwards to a second state that the grab bar is folded on the side surface of the frame; the grab rail is positioned at one side of the ladder. The handrail rod is positioned on one side of the ladder stand and is matched with the ladder stand, so that a worker can easily climb up and down the ladder stand; the rotary connection structure of the grab rail and the frame is utilized, so that the grab rail frame can have a first state of protruding out of the top surface of the frame for use and a second state of being folded on the side surface of the frame for containing, and can be conveniently grabbed when workers climb up and down on the ladder stand and the top of the tank in the first state, so that the operation or the maintenance on the top of the tank container are facilitated, and the use comfort and the safety of the tank ladder stand are further improved; and simultaneously, the space occupation of the tank can be reduced in the second state, so that the tank is convenient to transport and store.

Description

Tank container

Technical Field

The utility model relates to a container technical field, in particular to tank container.

Background

In order to facilitate the person to get on the top of the tank container to operate the valves, check the meters or to overhaul etc., a ladder stand is generally provided at the end or side of the tank container. The space available at the ends or sides of the tank container is often very limited, since any accessories on the tank container must not extend beyond the outer end faces of the container corners.

In the related art, the ladder stand is generally vertically disposed in a limited space at an end or a side of the tank and fixed to the frame by welding. When people climb up and down between the crawling ladder and the top of the tank, the people can only crawl and crawl by gripping the crawling ladder or the surface of the tank frame by hands, so that the climbing ladder is neither comfortable nor safe.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tank container to optimize the cat ladder structure of tank among the prior art, promote comfortable and the security that tank cat ladder used.

In order to solve the technical problem, the utility model adopts the following technical scheme:

according to an aspect of the utility model, the utility model provides a tank container, this tank container includes: a frame; the crawling ladder is arranged on the side surface of the frame; the grab bar is rotatably arranged on the frame and can rotate upwards to a first state that the grab bar protrudes out of the top surface of the frame or rotate downwards to a second state that the grab bar is folded on the side surface of the frame; the grab rail is positioned on one side of the ladder stand.

According to some embodiments of the present application, the top of the frame is provided with a fixing seat extending downward; one end of the handrail rod is hinged with the fixed seat; when the grab bar rotates relative to the fixed seat, the other end of the grab bar can protrude out of the top surface of the frame or be folded on the side surface of the frame.

According to some embodiments of the present application, the number of the fixing seats is two, and the fixing seats are arranged at intervals; the crawling ladder is arranged between the two fixed seats; the two handrail rods are hinged to the fixed seat respectively and are respectively arranged on two opposite sides of the ladder stand.

According to some embodiments of the present application, the tank container further comprises a connecting rod connecting the two grab rails so that the two grab rails rotate synchronously; when the grab bar is in the first state, the height of the connecting rod does not exceed the top surface of the frame; when the grab rail is in the second state, the connecting rod can be attached to the side wall of the ladder stand.

According to some embodiments of the present application, the connecting rod is a U-shaped rod, and both ends of the U-shaped rod are connected to the grab bar, respectively; when the grab rail is in the second state, the middle part of the U-shaped rod piece protrudes and extends in the direction far away from the frame; when the grab bar is in the first state, the middle part of the U-shaped rod piece protrudes towards the direction close to the frame and can extend on the top surface of the frame.

According to some embodiments of the present application, the tank container further comprises an armrest steering assembly comprising a link and a joystick; one end of the connecting rod is hinged with one end of the handrail rod, and the hinged shaft between the handrail rod and the fixed seat are arranged at intervals; the other end of the connecting rod is hinged with one end of the operating rod; the operating lever is hinged on the frame, and the hinged shaft between the operating lever and the connecting rod are arranged at intervals.

According to some embodiments of the present application, the armrest steering assembly further comprises a locking seat and a retaining pin; the locking seat is fixedly arranged on the frame and provided with a first pin hole and a second pin hole, and the operating rod is hinged to the locking seat; the fixed pin is inserted on the operating lever; when the fixed pin is opposite to the first pin hole, the grab rail is in a first state that the grab rail protrudes out of the top surface of the frame; when the fixed pin is opposite to the second pin hole, the grab bar is in a second state of being folded on the side surface of the frame.

According to some embodiments of the present application, the ladder stand comprises an upper ladder and a lower ladder; the top of the upper ladder is hinged with the frame, and the bottom of the lower ladder is hinged with the frame; the upper ladder and the lower ladder are rotatably connected, so that an open state and a closed state are formed between the upper ladder and the lower ladder, wherein the open state and the closed state are mutually folded to form parallel superposition.

According to some embodiments of the present application, a positioning pin is provided at the bottom of the upper ladder, and a guide groove is provided on the lower ladder; the positioning pin can be slidably accommodated in the guide groove so as to rotatably open or close the upper ladder and the lower ladder; when the positioning pin moves to one end, far away from the frame, of the guide groove, the upper ladder is connected with the lower ladder in a positioning mode.

According to some embodiments of the present application, the guide groove includes a sliding portion and a check portion communicating with each other, the check portion being located at an end of the sliding portion away from the frame; when the positioning pin is limited in the non-return part, the upper ladder and the lower ladder are in positioning connection and are in an open state.

According to some embodiments of the present application, the ladder stand further includes a positioning seat located right below the upper ladder, and the positioning seat is fixedly disposed on the frame; the bottom end of the upper ladder is provided with a positioning hole; a locking pin and a spring are arranged in the positioning seat; the locking pin movably penetrates through the positioning seat, and the top of the locking pin can penetrate through the positioning seat and extend upwards to be inserted into the positioning hole; the spring abuts against the locking pin to drive the locking pin to protrude out of the top of the positioning seat.

According to some embodiments of the application, two positioning seats are provided, and the two positioning seats are arranged at intervals and correspond to two ends of the bottom of the upper ladder one by one; the ladder stand also comprises a foot bar which is transversely arranged between the two positioning seats, and two ends of the foot bar respectively and movably extend into one of the positioning seats and are connected with the locking pin; the pedal lever can drive the locking pin to move downwards relative to the positioning seat, so that the top end of the locking pin retracts into the positioning seat.

According to some embodiments of the application, a blocking piece is arranged at the bottom end of the upper ladder and comprises an end sealing part and a pressing part which are integrally bent; the end sealing part is arranged on the end face of the bottom end of the upper ladder, and the positioning hole is formed in the end sealing part; the blocking part extends obliquely upwards from the edge of the end-closing part close to the frame; when the blocking piece rotates along with the ascending ladder to be close to the positioning seat, the blocking and pressing part can abut against and press the locking pin, so that the top end of the locking pin retracts into the positioning seat.

According to the above technical scheme, the embodiment of the utility model provides an at least have following advantage and positive effect:

in the tank container of the embodiment of the utility model, the grab bar is positioned at one side of the ladder stand and can be matched with the ladder stand, so that the worker can easily climb up and down the ladder stand; the rotary connection structure of the grab bar and the frame is utilized, so that the grab bar can have a first state of protruding out of the top surface of the frame for use and a second state of being folded on the side surface of the frame for storage, and in the first state, workers can climb up and down the ladder stand and the top of the tank, so that the operation or maintenance on the top of the tank container is facilitated, and the use comfort and safety of the tank ladder stand are further improved; and simultaneously, the space occupation of the tank can be reduced in the second state, so that the tank is convenient to transport and store.

Drawings

Fig. 1 is a schematic structural view of a tank container according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a region a in fig. 1.

Fig. 3 is an enlarged schematic view of a region B in fig. 1.

Fig. 4 is an enlarged schematic view of the region C in fig. 1.

Fig. 5 is a partial structural schematic view of the tank container of fig. 1 in a first state.

Fig. 6 is an enlarged schematic view of a region D in fig. 5.

Fig. 7 is a schematic view of the grab bar and the armrest steering assembly of fig. 1, with the grab bar in a second state folded to the side of the frame.

Fig. 8 is a schematic view of the grab bar and the armrest steering assembly of fig. 5, with the grab bar in a first state projecting above the top surface of the frame.

Fig. 9 is a partial structural view of the tank container of fig. 1 in a first state with the ladder stand open.

Fig. 10 is an enlarged schematic view of region E in fig. 9.

Fig. 11 is a schematic structural view of the positioning stand, the foot bar and the descending ladder of fig. 10.

Fig. 12 is a schematic structural view of the ladder stand, the handrail frame and the handrail operating assembly in fig. 1.

Fig. 13 is an enlarged structural view of the region F in fig. 12.

Fig. 14 is a schematic cross-sectional view of fig. 13.

Fig. 15 is a schematic view of the structure of the blocking piece and the locking pin in the state that the ascending ladder and the descending ladder tend to be closed.

Fig. 16 is a schematic structural view of the baffle plate in fig. 15.

Fig. 17 is a schematic structural view of a tank container according to another embodiment of the present invention.

Fig. 18 is an enlarged schematic view of the region G in fig. 17, showing the grab bar in the first state.

Fig. 19 is a structural schematic view of the grab bar of fig. 18 in a second state.

The reference numerals are explained below:

1. a frame; 11. a top beam; 12. a bottom beam; 13. a fixed seat; 2. a tank body; 3. climbing a ladder; 31. going up the ladder; 311. a vertical rod; 312. a cross bar; 313. positioning pins; 314. a baffle plate; 3141. sealing the end part; 3142. a pressure retaining part; 3110. positioning holes; 32. descending a ladder; 321. a support bar; 322. a guide groove; 3221. a sliding part; 3222. a non-return portion; 33. positioning seats; 331. a locking pin; 332. a spring; 333. a limiting ring; 34. a foot bar; 4. a handrail frame; 41. a grab rail; 411. a first hinge shaft; 412. a first bending section; 413. a vertical section; 414. a second bending section; 42. a connecting rod; 43. swinging arms; 5. an armrest control assembly; 51. a connecting rod; 511. a second hinge shaft; 512. a third hinge shaft; 52. a joystick; 521. a fourth hinge shaft; 53. a locking seat; 531. a first pin hole; 532. a second pin hole; 54. and fixing the pin.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

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 implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 and 4, an embodiment of the present invention provides a tank container, which includes a frame 1, a tank body 2 erected on the frame 1, a ladder stand 3 arranged on a side wall of the frame 1, a handrail operating assembly 5 arranged on the top of the ladder stand 3 and rotatable handrail frame 4 and used for controlling the rotation of the handrail frame 4. When workers need to climb the ladder stand 3, the workers can safely climb into the top of the tank container to operate with the assistance of the handrail frame 4.

Wherein, the frame 1 can adopt a hollow cuboid structure. The top end of the frame 1 is provided with a top beam 11, and the bottom end of the frame 1 is provided with a bottom beam 12. The top beam 11 and the bottom beam 12 are spaced apart from each other on the same side of the frame 1.

The tank 2 may be a tank structure for a general tank container, which is erected inside the frame 1. It will be understood that the tank 2 may be housed completely within the frame 1, and that the end of the tank 2 may also project beyond the end face of the frame 1.

The ladder stand 3 is arranged on the side surface of the frame 1, and the ladder stand 3 is arranged between the top beam 11 and the bottom beam 12. The side surface on which the ladder stand 3 is located may be a side surface of the frame 1 corresponding to the end of the tank 2, or may be a side surface of the frame 1 corresponding to the longitudinal direction of the tank 2.

It will be appreciated that in some embodiments the ladder 3 may be arranged directly vertically on the side of the frame 1. The top end of the ladder stand 3 is connected with a top beam 11, and the bottom end of the ladder stand 3 is connected with a bottom beam 12.

Referring to fig. 9 to 5 in combination with fig. 1 to 4, in some embodiments, the ladder stand 3 includes an upper ladder 31, a lower ladder 32 and a positioning seat 33.

The top of the upper ladder 31 is hinged to the frame 1 so as to be able to rotate relative to the frame 1.

The upper ladder 31 comprises two oppositely arranged vertical bars 311. A plurality of cross bars 312 arranged at intervals are arranged between the two vertical bars 311. The cross bar 312 is used for connecting and fixing the two vertical bars 311, and can be used for a worker to step when the worker climbs the ladder 3 up and down. The top of the vertical bar 311 is hinged to the frame 1 to enable the upper ladder 31 to rotate relative to the frame 1.

Referring to fig. 1, 2 and 12, in some embodiments, the top beam 11 is provided with a fixing base 13 extending downward, and the top of the vertical rod 311 is hinged to one side of the fixing base 13. The fixing seats 13 are two, and the two fixing seats 13 are arranged in parallel at intervals. The top of the upper ladder 31 is arranged between the two fixed seats 13, and the tops of the two vertical rods 311 are respectively hinged with one fixed seat 13. The upper step 31 is rotatable with respect to the frame 1, and the upper step 31 can have a vertical state in which it is vertically disposed on the side of the frame 1 and an inclined state in which it is obliquely disposed on the side of the frame 1.

Referring to fig. 9 to 15, the bottom of the upper step 31 is rotatably connected to the lower step 32, and the bottom of the lower step 32 is hinged to the frame 1, so that the upper step 31 and the lower step 32 have two states of opening and closing.

Go up the bottom of ladder 31 and the top of lower ladder 32 and outwards rotate respectively and open to make go up ladder 31 and lower ladder 32 relative rotation, and then make go up ladder 31 and lower ladder 32 and be in the open mode, go up ladder 31 and lower ladder 32 this moment and be the contained angle and link to each other, go up the slope of ladder 31 and arrange at frame 1 lateral part. When the staff climbed cat ladder 3, the focus of self can more press close to cat ladder 3, and staff's arm also stretches out more easily, is favorable to laborsaving.

In contrast, when the bottom end of the upper step 31 and the top end of the lower step 32 are rotated inward, respectively, so that the upper step 31 and the lower step 32 are both in the vertical state, the upper step 31 and the lower step 32 are stacked in parallel with each other in the closed state. Under the closed state, go up ladder 31 and lower ladder 32 and be contracted the integration in the finite space of frame 1 lateral wall, go up ladder 31 and lower ladder 32 and do not all exceed the outer terminal surface of tank container corner fitting, and the space that just occupies tank inside is less.

Still referring to fig. 9-15, in some embodiments, the lower ladder 32 includes two support bars 321 disposed opposite to each other at a certain interval. One end of the support rod 321 is hinged on the bottom beam 12, and the support rod 321 is provided with a guide groove 322. The two support rods 321 are respectively opposite to the two vertical rods 311, and the bottom of the vertical rod 311 is convexly provided with a positioning pin 313. The positioning pin 313 is slidably received in the guiding groove 322 to rotatably open or close the vertical bar 311 and the supporting bar 321, thereby rotatably opening or closing the upper ladder 31 and the lower ladder 32. When the positioning pin 313 moves to one end of the guide groove 322 far away from the frame 1, the upper ladder 31 is connected with the lower ladder 32 in a positioning manner, and the open state between the upper ladder 31 and the lower ladder 32 is fixed.

Referring to fig. 10 and 11, the guide groove 322 includes a sliding portion 3221 and a stopping portion 3222 communicating with each other. The check portion 3222 is located at an end of the sliding portion 3221 away from the frame 1. When the positioning pin 313 is limited in the stopping portion 3222, the upper ladder 31 and the lower ladder 32 are in positioning connection and in an open state. The stopping portion 3222 may be formed by extending an end of the sliding portion 3221 away from the frame 1 upward, so that the sliding portion 3221 and the stopping portion 3222 are combined into the guide groove 322 having an L-shaped structure, and the positioning pin 313 can position and lock the included angle between the upper ladder 31 and the lower ladder 32 when sliding to the stopping portion 3222.

After the ladder 3 is used, the support rod 321 is lifted up to separate the stopping portion 3222 from the positioning pin 313, thereby releasing the locked state of the included angle between the upper ladder 31 and the lower ladder 32. The positioning pin 313 can move toward one end close to the frame 1 along the sliding portion 3221, thereby gradually turning the upper and lower ladders 31 and 32 to the vertical state.

Referring to fig. 10 to 15, in some embodiments, the ladder stand 3 further includes a positioning seat 33 located right below the upper ladder 31, and the positioning seat 33 is fixed on the frame 1. The two positioning seats 33 are arranged corresponding to the vertical bars 311 of the upper ladder 31 one by one, and the bottom of the vertical bars 311 is provided with a positioning hole 3110. The lower end of the lower ladder 32 can be hinged to the positioning seat 33, i.e. the lower end of the support rod 321 is hinged to the positioning seat 33.

Referring to fig. 13 to 15, a locking pin 331 and a spring 332 are disposed in the positioning seat 33. The locking pin 331 is movably disposed in the positioning seat 33. When the vertical rod 311 is in a vertical state, the positioning seat 33 is located right below the vertical rod 311, and the top of the locking pin 331 can penetrate through the positioning seat 33 and extend upwards to be inserted into the positioning hole 3110 of the vertical rod 311, so as to lock the positioning seat 33 on the upper ladder 31, thereby keeping the vertical folding state of the upper ladder 31 and the lower ladder 32, and the ladder 3 is in a vertical state as a whole. The spring 332 abuts against the locking pin 331 to provide an upward elastic force to the locking pin 331 so as to urge the locking pin 331 to protrude upward out of the top of the positioning seat 33.

Referring to fig. 14, in some embodiments, a limiting ring 333 is sleeved on the peripheral wall of the locking pin 331, and the limiting ring 333 is disposed in the positioning seat 33. The spring 332 is sleeved on the locking pin 331, the bottom end of the spring 332 abuts against the positioning seat 33, the top end of the spring 332 abuts against the positioning ring, and the top end of the locking pin 331 is pushed by the limiting ring 333 to protrude out of the top of the positioning seat 33.

Referring to fig. 10 to 14, in some embodiments, the ladder stand 3 further includes a step bar 34 transversely disposed between the two positioning bases 33. Both ends of the pedal lever 34 are movably inserted into a positioning seat 33 and connected to the bottom end of the locking pin 331.

When the foot bar 34 receives a downward external force, such as a foot step or a press, the foot bar 34 can drive the locking pin 331 to move downward relative to the positioning seat 33, so that the top end of the locking pin 331 retracts into the positioning seat 33, and further contacts with the locking between the upper ladder 31 and the positioning seat 33, so that the upper ladder 31 and the lower ladder 32 can rotate outward.

Referring to fig. 15 and 16, in some embodiments, a stop piece 314 is disposed at the bottom end of the vertical rod 311. The blocking piece 314 includes a blocking portion 3141 and a pressing portion 3142 which are integrally formed by bending. The end-sealing portion 3141 is disposed on the bottom end surface of the vertical rod 311, and the positioning hole 3110 is disposed on the end-sealing portion 3141. The pressing stopper 3142 extends obliquely upward from the edge of the end stopper 3141 close to the frame 1.

When the upper ladder 31 and the lower ladder 32 tend to be closed, the blocking piece 314 rotates with the upper ladder 31 to approach the positioning seat 33, the blocking and pressing part 3142 can abut against and press the locking pin 331, so that the top end of the locking pin 331 retracts into the positioning seat 33, when the upper ladder 31 is aligned with the positioning seat 33, the top end of the locking pin 331 is opposite to the positioning hole 3110, and at the moment, the locking pin 331 can extend upwards into the positioning hole 3110 under the action of the spring 332, so that the upper ladder 31 is automatically locked on the positioning seat 33.

Referring to fig. 1 and 8, the handrail frame 4 is rotatably installed on the frame 1 and is located on the top of the ladder stand 3.

Referring to fig. 5 in conjunction with fig. 12, the handle frame 4 includes two handle bars 41 and a connecting rod 42 connected between the two handle bars 41.

The two grab bars 41 are respectively hinged on the opposite outer sides of a fixed seat 13. Each grab bar 41 has a hinged end at one end and a free end at the other end. The hinge shaft at the hinge end of the grab bar 41 is a first hinge shaft 411, and the grab bar 41 is rotatably coupled to the frame 1. The two grab bars 41 are arranged on both sides of the ladder stand 3 so as to be convenient for the working personnel to use when climbing.

During the rotation of the grab bar 41 relative to the positioning seat 33, the grab bar 41 can be rotated upward and has a first state protruding out of the top surface of the frame 1, while the grab bar 41 can be rotated downward and has a second state folded on the side surface of the frame 1. In the first state, the free end of the grab bar 41 protrudes out of the top surface of the frame 1. In the second state, the grab bar 41 is integrated in the limited space of the side wall of the frame 1 by contraction, the grab bar 41 does not exceed the outer end face of the corner fitting of the tank container, and the space occupied inside the tank container is small.

Referring to fig. 5, in the first state, the grab bar 41 is located at one side of the ladder stand 3, and the free end of the grab bar 41 protrudes out of the top of the frame 1, so as to provide a reliable gripping point for the personnel, and facilitate the personnel to climb up and down the ladder stand 3 and smoothly enter the frame 1 and the top of the tank. Thereby being convenient for operating or overhauling the top of the tank container and improving the comfort and the safety of the use of the tank ladder stand 3.

It will be appreciated that the upper ladder 31 and the lower ladder 32, whether in the vertically closed position or in the inclined open position, can be used in conjunction with the grab bar 41 to provide a safe and comfortable environment for the personnel to climb the ladder 3.

Referring to fig. 1 in combination with fig. 12, in the second state, the grab bar 41 is folded at the side of the frame 1 to accommodate the grab bar 41 in the frame 1, so as to reduce the space occupation of the tank for transportation and storage.

Referring to fig. 5 in conjunction with fig. 12, two ends of the connecting rod 42 are respectively connected to a grab rail 41, so that the two grab rails 41 can rotate synchronously. The connecting rods 42 are placed transversely to the outside of the ladder 3 remote from the frame 1.

Referring to fig. 5, in the first state of the grab bar 41, the height of the connecting rod 42 does not exceed the top surface of the frame 1, so as to prevent the connecting rod 42 from obstructing the person from entering the top of the frame 1.

Referring to fig. 1, when the grab bar 41 is in the second state and the ladder stand 3 is in the vertical state, the connecting rod 42 can be attached to the side wall of the ladder stand 3 away from the frame 1. And the ladder stand 3 and the handrail frame 4 are folded and accommodated in a limited space on the side surface of the frame 1, thereby reducing the occupation of the volume of the tank.

Referring to fig. 1 to 3 in combination with fig. 5 to 8, in some embodiments, the tank container further includes an armrest control assembly 5, and the armrest control assembly 5 includes a connecting rod 51, an operating rod 52, a locking seat 53 and a fixing pin 54.

The upper end of the link 51 is hinged to one end of the grab bar 41, and the hinge axis is a second hinge axis 511. The second hinge shaft 511 and the first hinge shaft 411 between the handle bar 41 and the fixing base 13 are spaced apart from each other. Therefore, when the link 51 moves up and down, the grab bar 41 is driven to rotate downward or upward about the first hinge shaft 411.

In some embodiments, a swing arm 43 is also connected to the hinged end of the grab bar 41. The swing arm 43 and the grab bar 41 rotate synchronously with the first hinge shaft 411 as an axis, that is, one end of the swing arm 43 is fixedly connected with the grab bar 41 and both hinged on the first hinge shaft 411, and the other end of the swing arm 43 and the other end of the grab bar 41 extend to two opposite sides of the first hinge shaft 411 respectively. The upper end of the connecting rod 51 is hinged with the other end of the swing arm 43, and the hinged shaft is a second hinged shaft 511. Therefore, when the link 51 moves up and down, the swing arm 43 can drive the grab bar 41 to rotate downward or upward about the first hinge shaft 411. It will be appreciated that the swing arm 43 and the grab bar 41 may be of integrally formed construction.

The other end of the link 51 is hinged to one end of the operating lever 52, and the hinge shaft is a third hinge shaft 512. The operating lever 52 is hinged to the frame 1, with a fourth hinging axis 521. The third hinge shaft 512 is spaced apart from the fourth hinge shaft 521. Therefore, when the operating lever 52 rotates about the fourth hinge shaft 521, the link 51 is driven to move up and down.

Referring to fig. 7 and 8, the first hinge shaft 411, the second hinge shaft 511, the third hinge shaft 512 and the fourth hinge shaft 521 may be distributed in a parallelogram structure, so that the grab bar 41, the link 51 and the operating lever 52 form a mechanism similar to the parallelogram link 51, and the grab bar 41 may be synchronously driven to rotate upwards or downwards by the operating lever 52.

Referring to fig. 3 and 6, the locking seat 53 is fixedly disposed on the frame 1, the locking seat 53 has a first pin hole 531 and a second pin hole 532, and the operating lever 52 is hinged to the locking seat 53; a fixing pin 54 is inserted into the operating lever 52, and the fixing pin 54 can be inserted into and removed from the operating lever 52.

Referring to fig. 5 and 6, when the operating lever 52 is rotated to make the fixing pin 54 opposite to the first pin hole 531, the fixing pin 54 is inserted into the first pin hole 531 to lock the operating lever 52 at the first pin hole 531 of the locking seat 53, so that the grab bar 41 can be locked in the first state protruding out of the top surface of the frame 1 by the connecting rod 51.

Referring to fig. 1 to 3, when the operating lever 52 is rotated in a reverse direction such that the fixing pin 54 is opposite to the second pin hole 532, the fixing pin 54 is inserted into the second pin hole 532 to lock the operating lever 52 at the second pin hole 532 of the locking seat 53, and the grab bar 41 can be locked in a second state folded at the side of the frame 1 by the connecting rod 51.

Fig. 17 is a schematic structural view of a tank container according to another embodiment of the present invention. Fig. 18 is an enlarged schematic view of the region G in fig. 17, in which the grab bar 41 is in the first state. Fig. 19 is a structural schematic view of the grab bar 41 in fig. 18 in a second state.

Referring to fig. 17 to 19, the difference between the embodiment and the embodiment shown in fig. 1 to 16 is mainly the difference between the connection position of the top of the ladder stand 3 and the structure of the handrail frame 4.

The top of the ladder stand 3 is directly hinged on the top beam 11, and the grab bar 41 is separately hinged on the fixed seat 13. It should be noted that the top of the ladder stand 3 is still located between the two fixed bases 13.

In the armrest frame 4, the connecting rod 42 is a U-shaped bar. Both ends of the U-shaped rod are connected with the grab bar 41 respectively.

Referring to fig. 18, in the second state of the grab bar 41, i.e. the folded state, the middle part of the U-shaped bar protrudes away from the frame 1. Therefore, when the middle part of the U-shaped rod is attached to the side wall of the ladder stand 3, the grab bars 41 at the two ends of the U-shaped rod can be closer to the inside of the frame 1, so that the grab frame 4 can be more completely accommodated in the frame 1.

Referring to fig. 19, in the first state of the grab bar 41, the middle of the U-shaped bar protrudes toward the frame 1. When the grab bar 41 is abutted against the top beam 11, the middle part of the U-shaped rod can be extended to the top surface of the frame 1 and is close to or overlapped on the top surface of the frame 1, so that the connecting rod 42 can be further prevented from obstructing the personnel from entering the top of the frame 1.

Referring to fig. 18 and 19, in the present embodiment, the grab bar 41 includes a first bending section 412, a vertical section 413 and a second bending section 414 which are integrally formed.

The first bending section 412 and the second bending section 414 respectively extend from two ends of the vertical section 413 to the same side direction. The first bending section 412 serves as a hinge end of the grab bar 41 and is hinged to the fixed seat 13 through a first hinge shaft 411. One end of the swing arm 43 is connected to the first bending section 412. The second bend 414 is located at the free end of the grab bar 41. It can be understood that one end of the swing arm 43 is connected to the first bending section 412 and can be rotated in synchronization with the first hinge shaft 411.

Referring to fig. 19, when the grab bar 41 is in the second state and the middle of the U-shaped rod is attached to the side wall of the ladder stand 3, the first bending section 412 and the second bending section 414 do not exceed the outer contour of the frame 1, and the vertical section 413 can protrude toward the inside of the frame 1 so as to be accommodated in the frame 1.

Referring to fig. 18, in the first state of the grab bar 41, the vertical section 413 can be attached to the side wall of the top beam 11, and the second bending section 414 can extend above the top of the frame 1, and the middle of the U-shaped bar can extend on the top surface of the frame 1 to be close to or overlapped on the top surface of the frame 1.

Based on the technical scheme, the embodiment of the utility model provides an at least, following advantage and positive effect have:

in the tank container of the embodiment of the utility model, the handrail rod 41 of the handrail frame 4 is positioned at one side of the ladder stand 3 and can be matched with the ladder stand 3, so that the worker can easily climb up and down the ladder stand 3; by utilizing the rotating connection structure of the handrail rod 41 of the handrail frame 4 and the frame 1, the handrail frame 4 can have a first state of protruding out of the top surface of the frame 1 for use and a second state of being folded on the side surface of the frame 1 for storage, and under the first state, workers can climb up and down the ladder stand 3 and the top of the tank so as to be convenient for operation or maintenance on the top of the tank container, thereby improving the comfort and safety of the use of the tank ladder stand 3; meanwhile, the space occupation of the tank can be reduced in the second state, so that the tank is convenient to transport and store.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (13)

1. A tank container, comprising:

a frame;

the crawling ladder is arranged on the side surface of the frame; and

the grab bar is rotatably arranged on the frame and can rotate upwards to a first state that the grab bar protrudes out of the top surface of the frame or rotate downwards to a second state that the grab bar is folded on the side surface of the frame; the grab rail is positioned on one side of the ladder stand.

2. A tank container as claimed in claim 1, wherein the frame is provided at the top thereof with downwardly extending fixing seats;

one end of the handrail rod is hinged with the fixed seat;

when the grab bar rotates relative to the fixed seat, the other end of the grab bar can protrude out of the top surface of the frame or be folded on the side surface of the frame.

3. The tank container according to claim 2, wherein the fixing seats are provided in two and spaced apart; the crawling ladder is arranged between the two fixed seats;

the two handrail rods are hinged to the fixed seat respectively and are respectively arranged on two opposite sides of the ladder stand.

4. The tank container of claim 3, further comprising a connecting rod connecting the two grab rails so that the two grab rails rotate in synchronization;

when the grab rail is in the second state, the connecting rod can be attached to the side wall of the ladder stand.

5. The tank container according to claim 4, wherein the connection rods are U-shaped rod members, both ends of which are connected to the grab bars, respectively;

when the grab rail is in the second state, the middle part of the U-shaped rod piece protrudes and extends in the direction far away from the frame;

when the grab bar is in the first state, the middle part of the U-shaped rod piece protrudes towards the direction close to the frame and can extend on the top surface of the frame.

6. The tank container of claim 2, further comprising an armrest steering assembly comprising a link and a lever;

one end of the connecting rod is hinged with one end of the handrail rod, and a hinged shaft between the connecting rod and the handrail rod and a hinged shaft between the handrail rod and the fixed seat are arranged at intervals;

the other end of the connecting rod is hinged with one end of the operating rod; the operating rod is hinged on the frame, and a hinged shaft between the operating rod and the frame and a hinged shaft between the operating rod and the connecting rod are arranged at intervals.

7. The tank container of claim 6, wherein the handle assembly further comprises a locking seat and a fixing pin;

the locking seat is fixedly arranged on the frame and provided with a first pin hole and a second pin hole, and the operating rod is hinged to the locking seat; the fixed pin is inserted on the operating lever;

when the fixed pin is opposite to the first pin hole, the grab rail is in a first state that the grab rail protrudes out of the top surface of the frame; when the fixed pin is opposite to the second pin hole, the grab bar is in a second state of being folded on the side surface of the frame.

8. The tank container of claim 1, wherein the ladder stand includes an upper ladder and a lower ladder;

the top of the upper ladder is hinged with the frame, and the bottom of the lower ladder is hinged with the frame;

the upper ladder and the lower ladder are rotatably connected, so that an open state and a closed state are formed between the upper ladder and the lower ladder, wherein the open state and the closed state are mutually folded to form parallel superposition.

9. The tank container of claim 8, wherein the upper step is provided at the bottom thereof with a positioning pin, and the lower step is provided with a guide groove;

the positioning pin can be slidably accommodated in the guide groove so as to rotatably open or close the upper ladder and the lower ladder; when the positioning pin moves to one end, far away from the frame, of the guide groove, the upper ladder is connected with the lower ladder in a positioning mode.

10. The tank container of claim 9, wherein the guide groove includes a slide portion and a check portion communicating with each other, the check portion being located at an end of the slide portion remote from the frame;

when the positioning pin is limited in the non-return part, the upper ladder and the lower ladder are in positioning connection and are in an open state.

11. The tank container of claim 8, wherein the ladder stand further comprises a positioning seat positioned right under the upper ladder, the positioning seat being fixed to the frame;

the bottom end of the upper ladder is provided with a positioning hole; a locking pin and a spring are arranged in the positioning seat; the locking pin movably penetrates through the positioning seat, and the top of the locking pin can penetrate through the positioning seat and extend upwards to be inserted into the positioning hole; the spring abuts against the locking pin to drive the locking pin to protrude out of the top of the positioning seat.

12. The tank container of claim 11, wherein there are two of said positioning seats, and two of said positioning seats are spaced apart and correspond to one of two ends of said upper ladder bottom;

the ladder stand also comprises a foot bar which is transversely arranged between the two positioning seats, and two ends of the foot bar respectively and movably extend into one of the positioning seats and are connected with the locking pin; the pedal lever can drive the locking pin to move downwards relative to the positioning seat, so that the top end of the locking pin retracts into the positioning seat.

13. The tank container as claimed in claim 11, wherein a blocking piece is provided at a bottom end of the ascending ladder, the blocking piece including an end closing portion and a pressing portion which are integrally bent;

the end sealing part is arranged on the end face of the bottom end of the upper ladder, and the positioning hole is formed in the end sealing part; the blocking part extends obliquely upwards from the edge of the end-closing part close to the frame;

when the blocking piece rotates along with the ascending ladder to be close to the positioning seat, the blocking and pressing part can abut against and press the locking pin, so that the top end of the locking pin retracts into the positioning seat.

Images