CN219296979U

CN219296979U - Landing leg and transportation frame with braking structure

Info

Publication number: CN219296979U
Application number: CN202223602099.1U
Authority: CN
Inventors: 魏文深; 林子南; 林凤澈; 魏建
Original assignee: Xiamen Shenlan Power Technology Co ltd
Current assignee: Xiamen Shenlan Power Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-04
Anticipated expiration: 2032-12-30

Abstract

The application relates to a landing leg and transportation frame with braking structure, the landing leg includes supporting component and actuating component, the supporting component activity sets up on the landing leg, actuating component is used for driving supporting component and goes up and down, actuating component includes rotary power source, driving medium and driving medium, rotary power source is used for driving the driving medium and rotates, the driving medium is connected with the driving medium transmission and is used for driving supporting component and goes up and down, braking structure includes the spacing dish with driving medium fixed connection and is used for restricting spacing dish pivoted spacing post. When the weight ratio of the object lifted by the supporting leg is large, if the transmission piece is reversed, the limiting disc can be clamped by the limiting column, so that the supporting leg is prevented from retracting, the object can be lifted normally, and the lifting efficiency is further ensured.

Description

Landing leg and transportation frame with braking structure

Technical Field

The application relates to the technical field of supporting legs of a transportation frame, in particular to a supporting leg with a braking structure and a transportation frame.

Background

When the supporting legs are used for lifting objects by the transportation frame, the oversized force arm is eliminated, so that the phenomenon that the vehicle body is tilted is avoided. The landing leg generally includes drive assembly, drive assembly and supporting component, and drive assembly provides a power supply, and drive assembly turns into the power that drive assembly provided and drives supporting component and go up and down to realize the extension and the withdrawal of landing leg, some landing legs adopt belt pulley and lead screw to transmit at present. However, when the weight of the lifted object is relatively large, the belt pulley is easy to reverse, so that the supporting legs retract, and the normal lifting of the object is affected.

Disclosure of Invention

When the weight ratio of the object of lifting by crane is great to above-mentioned current transportation frame, the belt pulley takes place to reverse easily to make the landing leg appear the phenomenon of withdrawal, and then influence the technical problem that the normal of object lifted by crane, this application has proposed landing leg and transportation frame with braking structure, adopts following technical scheme:

in a first aspect, the application proposes a landing leg with braking structure, it includes supporting component and actuating component, the supporting component activity sets up on the landing leg, actuating component is used for driving supporting component and goes up and down, actuating component includes rotary power source, driving medium and driving medium, rotary power source is used for driving the driving medium and rotates, the driving medium is connected with the driving medium transmission and is used for driving supporting component and goes up and down, braking structure includes the spacing dish with driving medium fixed connection and is used for restricting spacing dish pivoted spacing post.

Through adopting above-mentioned technical scheme, when the weight ratio of the object of lifting by crane is great at the transportation frame of using this landing leg, if the driving medium takes place to reverse, utilize spacing post can block spacing dish to prevent the landing leg withdrawal, thereby make the object normally lift by crane, and then guaranteed the efficiency of hoist and mount.

Preferably, the limiting disc is provided with a limiting groove for the insertion of the limiting column, and the supporting leg is provided with a driving source for controlling the expansion of the limiting column. Through adopting above-mentioned technical scheme, inserting spacing post in spacing groove can realize restricting the rotation of restriction limiting disk.

Preferably, the limit grooves are arranged in a plurality, and a plurality of limit grooves are arranged on the limit disc in an annular array. Through adopting above-mentioned technical scheme, set up a plurality of spacing grooves and make things convenient for spacing post to insert on the spacing dish.

Preferably, the transmission piece comprises a first belt pulley, the limiting disc is fixedly arranged on one side of the first belt pulley, and the limiting disc and the first belt pulley rotate coaxially.

Preferably, the driving member further comprises a belt and a second pulley, the belt connects the first pulley and the second pulley, and the driving member is in driving connection with the second pulley.

Preferably, the driving piece comprises a screw rod, and the supporting component comprises a movable seat which is in transmission fit with the screw rod and a supporting rod which is fixedly connected with the movable seat.

Preferably, a travel switch for controlling the travel of the support rod is arranged on the support leg. By adopting the technical scheme, the extension length of the supporting rod can be controlled by setting the travel switch, and the extension length is matched with the height of the carriage.

Preferably, the travel switch is electrically connected with a main controller, and the main controller is electrically connected with the driving source. Through adopting above-mentioned technical scheme, utilize travel switch to stop when the bracing piece stretches out the stroke furthest, then control the actuating source with spacing post stretch out the card into in the spacing dish for first belt pulley and other parts that first belt pulley transmission is connected also can not take place to rotate, thereby prevent the landing leg withdrawal, make the article normally hoist and mount, and then guaranteed the efficiency of hoist and mount.

Preferably, the length direction of the limiting post is perpendicular to the plane where the limiting disc is located. By adopting the technical scheme, the length direction of the limiting column is perpendicular to the plane where the limiting disc is located, so that the limiting column is conveniently inserted into the limiting disc.

Preferably, the transmission piece comprises a first belt pulley, a belt and a second belt pulley, the first belt pulley is in transmission connection with the rotary power source, the belt is connected with the first belt pulley and the second belt pulley, the second belt pulley is in transmission connection with the driving piece, and the limiting disc is fixedly arranged on the second belt pulley. Through adopting above-mentioned technical scheme, this kind of scheme is applicable to the less condition in space near first belt pulley, can decide the mounted position of limiting plate according to the installation space of transportation frame.

In a second aspect, the present application also discloses a transport rack comprising the leg of the first aspect and a frame, the support structure being disposed on the frame.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the landing leg with the braking structure is used, the rotary power source is used for controlling the first belt pulley to rotate, the first belt pulley rotates to drive the second belt pulley to rotate, the second belt pulley drives the screw rod to rotate, the screw rod is driven to stretch out after rotating, the supporting rod stops when reaching the far-end of the stroke, then the driving source is controlled to stretch out of the limiting column to be clamped into the limiting groove, when the weight of an object lifted by the landing leg is relatively large, if the belt pulley is inverted, the limiting disc can be clamped by the limiting column, and as the limiting disc is fixedly connected with the first belt pulley, other parts in transmission connection with the first belt pulley cannot rotate, so that the landing leg is prevented from retracting, the object can be lifted normally, and the lifting efficiency is further ensured;

2. when the supporting rod extends to the farthest end of the travel, the travel switch is utilized to stop, and then the driving source is controlled to extend and clamp the limit column into the limit disc, so that the first belt pulley and other parts in transmission connection with the first belt pulley cannot rotate, the supporting leg is prevented from retracting, the object can be lifted normally, and the lifting efficiency is further guaranteed;

3. the length direction of the limit post is perpendicular to the plane where the limit plate is located, so that the limit post is beneficial to being inserted into the limit plate.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The accompanying drawings illustrate embodiments and, together with the description, serve to explain the principles of the present application. Many of the intended advantages of other embodiments and embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

Fig. 1 is a schematic structural view of a leg with a braking structure according to an embodiment of the present application.

Fig. 2 is a schematic view of a structure of an embodiment of the present application for highlighting a support member.

Fig. 3 is another view of fig. 2.

Fig. 4 is a schematic structural view of an embodiment of the present application for protruding the limit post.

Fig. 5 is a schematic structural view of a transportation frame according to an embodiment of the present application.

Reference numerals illustrate: 1. a fixing frame; 2. a rotary power source; 3. a first pulley; 4. a second pulley; 5. a belt; 6. a screw rod; 7. a movable seat; 8. a support rod; 9. a movable hole; 10. a limiting disc; 11. a limit column; 12. a driving source; 13. a limit groove; 14. a lower frame; 15. an upper frame; 16. a column; 17. and (3) wheels.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In a first aspect, referring to fig. 1, an embodiment of the present application discloses a fixing frame 1, a support assembly, a driving assembly and a braking structure.

In a specific embodiment, the driving assembly includes a rotary power source 2, a transmission member and a driving member, where the rotary power source 2 is used to drive the transmission member to rotate, in this embodiment, the rotary power source 2 is a rotary motor, the transmission member includes at least one belt pulley, and the driving member is a screw rod structure.

In a specific embodiment, the transmission member includes a first pulley 3, a second pulley 4, and a belt 5, the first pulley 3 is in transmission connection with the rotary power source 2, and the belt 5 connects the first pulley 3 and the second pulley 4 to rotate the second pulley 4 by using the first pulley 3. Wherein the diameter of the first pulley 3 is smaller than the diameter of the second pulley 4, whereby a decelerating effect can be achieved.

Referring to fig. 2, in a specific embodiment, the driving member includes a screw 6 and a movable seat 7 cooperating with the screw 6, and the movable seat 7 is provided with a screw pair cooperating with the screw 6, and when the screw 6 rotates, the movable seat 7 can be driven to move by using the screw pair.

In a specific embodiment, the fixing frame 1 is a frame of a transport frame, and includes an upper fixing frame and a lower fixing frame. In other embodiments, the holder 1 may not be a frame of the transport rack, but may be provided separately and detachably connected to the frame of the transport rack.

Referring to fig. 2 and 3, in a specific embodiment, the support assembly includes a support rod 8, and the support rod 8 is fixedly connected with the movable seat 7. A movable hole 9 for the supporting rod 8 to pass through is arranged on the lower fixing frame 1, and a roller is arranged at the bottom of the supporting rod 8.

In a specific embodiment, the fixing frame 1 is provided with a linear guide rail for guiding the support rod 8.

Referring to fig. 1 and 4, in a specific embodiment, the braking structure includes a stopper disc 10 fixedly connected to the first pulley 3 and a stopper post 11 for restricting rotation of the stopper disc 10. The limiting disc 10 is fixedly arranged on one side of the first belt pulley 3, and the limiting disc 10 and the first belt pulley 3 coaxially rotate.

In a specific embodiment, a driving source 12 for controlling the expansion and contraction of the limiting post 11 is arranged on the fixing frame 1, and a plurality of limiting grooves 13 for inserting the limiting post 11 are arranged on the limiting plate 10. In the present embodiment, the number of the limiting grooves 13 is four, and four arrays of the limiting grooves 13 are provided on the limiting plate 10.

In a specific embodiment, the driving source 12 is a cylinder, and the cylinder is disposed on the fixing frame 1 and is used for controlling the expansion and contraction of the limiting post 11. The length direction of the limiting post 11 is perpendicular to the plane where the limiting plate 10 is located.

In a specific embodiment, the support leg is provided with a travel switch for controlling the travel of the support rod 8, the travel switch can be arranged between the upper fixing frame and the lower fixing frame, and the travel switch can be used for controlling the extending length of the support rod 8 and is matched with the height of a carriage.

In a specific embodiment, the travel switch is electrically connected to a main controller, and the main controller is electrically connected to the driving source 12.

In a specific embodiment, the limiting plate 10 may also be disposed on the second pulley 4, which is suitable for the case that the space near the first pulley 3 is small, and the mounting position of the limiting plate 10 may be determined according to the mounting space of the transportation frame.

The utility model provides a landing leg with braking structure when using, utilize rotary power source 2 control first belt pulley 3 earlier, first belt pulley 3 rotates the back and drives second belt pulley 4 through belt 5 and rotate, second belt pulley 4 drives lead screw 6 and rotates, drive bracing piece 8 after the lead screw 6 rotates and stretch out, stop moving when bracing piece 8 reaches the stroke distal end, then control drive source 12 stretches out the card into spacing inslot 13 with spacing post 11, thereby make when the weight ratio of the transportation frame of using this landing leg at the object of lifting by crane is great, if first belt pulley 3 takes place to reverse, then can block limiting disc 10 through spacing post 11, because limiting disc 10 and first belt pulley 3 fixed connection also can not take place to rotate for other parts that first belt pulley 3 transmission is connected, can prevent the landing leg withdrawal, thereby make the object normally lift by crane, and then guaranteed the efficiency of lifting by crane.

In a second aspect, referring to fig. 5, the present application further discloses a transportation frame, which includes the leg with the braking structure and the frame according to the first aspect of the embodiment, the frame includes a lower frame 14 and an upper frame 15, and a column 16 is fixedly disposed between the lower frame 14 and the upper frame 15. The legs with the braking structure are arranged between the lower frame 14 and the upper frame 15, and the legs with the braking structure are arranged at one side of the end parts of the lower frame 14/the upper frame 15, and wheels 17 are also arranged at the bottom of the lower frame 14 and can be matched with the rollers at the bottoms of the legs with the braking structure.

The transportation frame of this application when lifting by crane heavy object, can realize transportation frame and remove in the transport vechicle with the gyro wheel of the bottom of bracing piece 8 bottom and the wheel of the bottom of lower frame 14, after shifting out the carriage outside with it, utilize drive assembly to stretch out supporting component's bracing piece 8 and make the gyro wheel of bracing piece 8 bottom place subaerial, then control drive source 12 stretch out the card with spacing post 11 and go into spacing dish 10 limit, thereby make when the transportation frame lifts by crane heavy object, the too big arm of force can be eliminated to the adoption landing leg, and set up braking structure and avoid the transportation frame landing leg to withdraw when lifting by crane heavy object, make the object normally lift by crane, and then guaranteed the efficiency of hoist by crane.

While the present utility model has been described with reference to the specific embodiments thereof, the scope of the present utility model is not limited thereto, and any changes or substitutions will be apparent to those skilled in the art within the scope of the present utility model, and are intended to be covered by the present utility model. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

In the description of the present application, it should be understood that the terms "upper," "lower," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The word 'comprising' does not exclude the presence of elements or steps not listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.

Claims

1. A leg having a braking structure, characterized by: including supporting component and drive assembly, the supporting component activity sets up on the landing leg, drive assembly is used for driving supporting component and goes up and down, drive assembly includes rotary power source (2), driving medium and driving medium, rotary power source (2) are used for driving the driving medium and rotate, the driving medium is connected with the driving medium transmission and is used for driving supporting component and goes up and down, braking structure includes spacing dish (10) and be used for limiting spacing dish (10) pivoted spacing post (11) with driving medium fixed connection.

2. A leg with a braking structure as claimed in claim 1, wherein: limiting grooves (13) for inserting the limiting columns (11) are formed in the limiting plates (10), and driving sources (12) used for controlling the expansion and contraction of the limiting columns (11) are arranged on the supporting legs.

3. A leg with a braking structure as claimed in claim 2, wherein: the limiting grooves (13) are arranged in a plurality, and the limiting discs (10) are arranged on the limiting grooves (13) in an annular array.

4. A leg with a braking structure as claimed in claim 1, wherein: the transmission piece comprises a first belt pulley (3), the limiting disc (10) is fixedly arranged on one side of the first belt pulley (3), and the limiting disc (10) and the first belt pulley (3) rotate coaxially.

5. A leg with a braking structure as claimed in claim 4, wherein: the transmission piece further comprises a belt (5) and a second belt pulley (4), the belt (5) is connected with the first belt pulley (3) and the second belt pulley (4), and the driving piece is in transmission connection with the second belt pulley (4).

6. A leg with a braking structure as claimed in claim 1, wherein: the driving piece comprises a screw rod (6) and a movable seat (7) matched with the screw rod (6), and the supporting component comprises a supporting rod (8) fixedly connected with the movable seat (7).

7. A leg with a braking structure as claimed in claim 6, wherein: the landing leg is provided with a travel switch for controlling the travel of the supporting rod (8).

8. A leg with a braking structure as claimed in claim 7, wherein: the travel switch is electrically connected with a main controller, and the main controller is electrically connected with a driving source (12).

9. A leg with a braking structure as claimed in claim 2, wherein: the length direction of the limiting column (11) is perpendicular to the plane where the limiting disc (10) is located.

10. A transportation rack, characterized in that: comprising the leg of any one of claims 1-9 and a frame, said leg being arranged on the frame.