Movable arm transportation support capable of saving storage space

Abstract

The utility model belongs to the technical field of storage and transportation, and relates to a movable arm transportation support capable of saving storage space, which comprises a frame main body, four stacking foot bowls and four folding type support columns, each stacking foot bowl and one folding type support column are arranged on one corner of the frame main body in an up-and-down opposite mode, the folding type supporting columns comprise fixed columns with U-shaped sections and movable columns rotationally connected to the upper portions of the fixed columns, the U-shaped opening direction of each fixed column faces the other fixed column at the other end of the long edge of the frame body, a rotating shaft of each movable column is in the direction of the wide edge of the frame body, and when the movable columns are horizontally placed, the rotating shafts of the movable columns are in the direction of the wide edge of the frame body. And the part, higher than the movable column, of the fixed column is matched with the sunken part at the bottom of the stacking foot bowl. When the movable arm transportation support is used for storing movable arms, the height difference between the two frame bodies can be increased through the movable columns; when the movable arm transportation support is independently stored, the movable column rotates to the horizontal direction, the stacking height is smaller, and the stacking space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage and transportation, in particular to a movable arm transportation bracket which saves storage space. Background Art

[0002] The boom refers to a working device of the excavator, which is mainly used to control the excavation and loading of the bucket. The boom is connected to the frame and has a long arm length, so it is commonly called the boom. The boom is a hollow and bent structure. When moving the boom, its structural characteristics need to be considered, so the transport rack needs to be able to separate the boom. However, in order to save space for the boom, the transport rack also needs to consider the stacking problem, which requires the transport rack to be stackable.

[0003] Chinese patent CN216735426U discloses an excavator boom operating tooling, including a frame, a front fork limiting orifice plate and a lower ear plate limiting orifice plate, the frame includes a bottom transverse bracket, a front vertical bracket, a middle vertical bracket and a rear vertical bracket, the bottoms of the front vertical bracket and the rear vertical bracket are both installed with stacking bowls, the front vertical bracket and the rear vertical bracket both include long columns, and the stacking bowls are stacked by being placed on the top of the long columns. The long column here is an integrated structure, and its height depends on the placement height of the boom. When the boom is not placed, this boom operating tooling cannot be staggered and stacked, otherwise it is easy to compress and deform the frame, which is not conducive to the positioning of the boom. Therefore, the stacking height of this boom operating tooling is the same when the boom is placed and when the boom is not placed, so it is not enough to save storage space when stored alone.

[0004] Therefore be necessary to improve the structure to solve the above problems. Summary of the invention

[0005] The main purpose of the utility model is to provide a boom transport bracket which saves storage space and can fold the uprights when stored separately, thereby reducing the stacking height when stored separately.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a boom transport bracket that saves storage space, comprising a frame body, four stacking foot bowls and four folding pillars, each stacking foot bowl and a folding pillar are arranged on a corner of the frame body opposite to each other up and down, the folding pillar comprises a fixed column with a U-shaped cross-section and a movable column rotatably connected to the upper part of the fixed column, the U-shaped opening direction of each fixed column is toward another fixed column at the other end of the long side of the frame body, the rotating shaft of the movable column is along the wide side direction of the frame body, and when the movable column is laid flat, the portion of the fixed column that is higher than the movable column matches the bottom depression of the stacking foot bowl.

[0007] Specifically, a fixing pin is passed through the upper portion of the fixing column along the wide side direction of the frame body, and a pin hole matching the fixing pin is provided in the middle portion of the movable column.

[0008] Furthermore, a pair of long holes for the rotating shaft of the movable column to pass through are provided in the middle of the fixed column, and the long hole has a vertical section, and the center line of the vertical section and the axis of the fixed pin are in the same vertical plane.

[0009] Furthermore, the long hole also has an inclined section located at the upper end of the vertical section, and the upper end of the inclined section is inclined toward the tilting direction of the movable column.

[0010] Specifically, the frame body includes a pair of upper long tubes, a pair of lower long tubes, a pair of upper connecting tubes, and a lower connecting tube along the X direction, a pair of upper short tubes, a pair of lower short tubes, two pairs of upper reinforcement tubes and two pairs of lower reinforcement tubes along the Y direction, and four vertical tubes and several pairs of support tubes along the Z direction; the four vertical tubes, a pair of upper long tubes, a pair of lower long tubes, a pair of upper short tubes, and a pair of lower short tubes are assembled into a rectangular frame structure, a pair of upper connecting tubes are closely arranged in the middle of the two upper long tubes and the two ends are respectively connected to the two upper short tubes, the two ends of the upper reinforcement tube are respectively connected to an upper long tube and an upper connecting tube, the lower connecting tube is arranged in the middle of the two lower long tubes and the two ends are respectively connected to the two lower short tubes, the two ends of the lower reinforcement tube are respectively connected to a lower long tube and the lower connecting tube, the upper reinforcement tube and the lower reinforcement tube are opposite to each other up and down, the support tube is connected between the upper long tube and the lower long tube, and the fixing column and the stacking foot bowl are arranged at the upper and lower ends of the vertical tubes.

[0011] Furthermore, one end of the upper long tube and the upper connecting tube is the front support section of the boom and each is provided with a front limit assembly, and the other end is the rear support section of the boom and each is provided with a rear limit assembly; the front limit assembly includes a pair of limit blocks and a limit pin passing through the pair of limit blocks along the X direction, and the rear limit assembly includes a plurality of inverted L-shaped folded tubes arranged along the X direction, and adjacent inverted L-shaped folded tubes are separated to form a placement channel; the heights of the front limit assembly and the rear limit assembly are both lower than the lowest point of the movable column when it is laid flat.

[0012] Furthermore, a supporting protrusion is provided on one side of the front limit assembly, and the supporting protrusion is located on the upper part of the upper long tube and supports the free end of the movable column in a horizontal state.

[0013] Furthermore, a front guard plate is provided on the outer side of the front portion of the upper long tube to cover the outer sides of the two limit blocks, and a rear guard plate is provided on the outer side of the rear portion of the upper long tube to cover the outer sides of all the inverted L-shaped folded tubes.

[0014] The beneficial effects of the technical solution of the utility model are:

[0015] The movable column in the boom transport bracket can switch between a vertical posture and a horizontal posture. When the boom is stored, the vertical movable column can increase the height difference between the two frame bodies, so that the boom can be separated from the boom transport bracket; when the boom transport bracket is stored alone, the movable column does not need to be kept in a vertical state, but rotated to a horizontal direction, so that when two boom transport brackets are stacked, the height is smaller, saving stacking space. Because both stacking methods rely on four stacking feet to stand firm, they are not easy to tip over. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the boom transport support in a folded state;

[0017] Figure 2 for Figure 1 A partial enlarged view of position A in the middle;

[0018] Figure 3 A three-dimensional diagram of the movable arm transport support in the embodiment in a propped-up state;

[0019] Figure 4 for Figure 3 A partial enlarged view of position B in the middle;

[0020] Figure 5 This is a diagram of the stacking state of the boom transport bracket of the embodiment when it is stored separately;

[0021] Figure 6 It is a diagram of the stacking state of the boom transport bracket of the embodiment when the boom is placed.

[0022] The numbers in the figure represent:

[0023] 1- Boom transport bracket,

[0024] 11-frame body, 111-supporting protrusion, 112a-upper long tube, 112b-lower long tube, 113a-upper connecting tube, 113b-lower connecting tube, 114a-upper short tube, 114b-lower short tube, 115a-upper reinforcement tube, 115b-lower reinforcement tube, 116-vertical tube, 117-supporting tube, 118-front limit assembly, 1181-limiting block, 1182-limiting pin, 1183-front guard plate, 119-rear limit assembly, 1191-inverted L-shaped folded tube, 1192-rear guard plate,

[0025] 12- Stacking foot bowls,

[0026] 13-foldable support column, 131-fixed column, 1311-long hole, 13111-vertical section, 13112-oblique section, 132-movable column, 1321-pin hole, 133-rotating shaft, 134-fixed pin;

[0027] 2- boom, 21- front axle, 22- rear axle. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with specific embodiments.

[0029] Example:

[0030] like Figures 1 to 6 As shown, a storage space-saving boom transport bracket 1 of the utility model comprises a frame body 11, four stacking foot bowls 12 and four folding pillars 13, each stacking foot bowl 12 and a folding pillar 13 are arranged on a corner of the frame body 11 opposite to each other up and down, the folding pillar 13 comprises a fixed column 131 with a U-shaped cross-section and a movable column 132 rotatably connected to the upper part of the fixed column 131, the U-shaped opening direction of each fixed column 131 is toward another fixed column 131 at the other end of the long side of the frame body 11, the rotating shaft 133 of the movable column 132 is along the wide side direction of the frame body 11, and when the movable column 132 is laid flat, the portion of the fixed column 131 that is higher than the movable column 132 matches the bottom recess of the stacking foot bowl 12.

[0031] The movable column 132 can rotate at least 90° at the top of the fixed column 131, that is, it can rotate between two postures in the vertical direction and the horizontal direction. The fixed column 131 surrounds the lower end of the movable column 132 from three sides, and the unenclosed side is for the movable column 132 to rotate and fall. In order to avoid interference between adjacent movable columns 132 when they are placed flat, the movable column 132 is preferably rotated above the long side of the frame body 11. When storing the boom 2, the stacking foot bowl 12 is placed on the upper end of the vertical movable column 132. The movable column 132 can increase the height difference between the two frame bodies 11, so that the boom 2 can be accommodated between the upper and lower boom transport brackets 1; when the boom transport bracket 1 is stored alone, the movable column 132 does not need to remain in a vertical state, but rotates to a horizontal direction, and the stacking foot bowl 12 is placed on the upper end of the fixed column 131. In this way, when the two boom transport brackets 1 are stacked, the height is smaller, saving stacking space. Because both stacking modes rely on four stacking foot bowls 12 to stand firmly, they are not easy to overturn.

[0032] like Figure 2 and Figure 4 As shown, a fixing pin 134 is passed through the upper portion of the fixing column 131 along the wide side direction of the frame body 11 , and a pin hole 1321 matching the fixing pin 134 is provided in the middle portion of the movable column 132 .

[0033] The movable column 132 and the fixed column 131 have the freedom of rotation only when they are connected by the rotating shaft 133. Therefore, in order to stabilize the position of the movable column 132 in the vertical position, the fixed pin 134 is required to connect the fixed column 131 and the movable column 132 for a second time. When the movable column 132 is in a horizontal position, the fixed pin 134 passes through the fixed column 132 but not through the pin hole 1321; when the movable column 132 is in a vertical position, the fixed pin 134 passes through the fixed column 132 and the pin hole 1321 at the same time.

[0034] like Figure 2 and Figure 4 As shown, a pair of long holes 1311 are provided in the middle of the fixed column 131 for the rotating shaft 133 of the movable column 132 to pass through. The long hole 1311 has a vertical section 13111 and an inclined section 13112 located at the upper end of the vertical section 13111. The center line of the vertical section 1311 and the axis of the fixed pin 134 are in the same vertical plane, and the upper end of the inclined section 13112 is inclined toward the tilting direction of the movable column 132.

[0035] In order to make the movable column 132 strictly along the Z direction in the vertical posture, the axial distance between the fixed pin 134 and the rotating shaft 133 needs to be appropriately increased. Here, the rotating shaft 133 is stretched through the hole of the fixed column 131, so that when the movable column 132 is rotated to the vertical posture, the rotating shaft 133 can fall along the long hole 1311, thereby extending the distance between the fixed pin 134 and the rotating shaft 133, and avoiding the movable column 132 from being deformed under load.

[0036] like Figures 1 to 4 As shown, the frame body 11 includes a pair of upper long tubes 112a, a pair of lower long tubes 112b, a pair of upper connecting tubes 113a, and a lower connecting tube 113b along the X direction, a pair of upper short tubes 114a, a pair of lower short tubes 114b, two pairs of upper reinforcing tubes 115a and two pairs of lower reinforcing tubes 115b along the Y direction, and four vertical tubes 116 and a plurality of pairs of supporting tubes 117 along the Z direction; the four vertical tubes 116, a pair of upper long tubes 112a, a pair of lower long tubes 112b, a pair of upper short tubes 114a, and a pair of lower short tubes 114b are assembled into a rectangular parallelepiped skeleton structure, and a pair of upper connecting tubes 113a are closely arranged on the two upper long tubes 114a. The middle of 12a and the two ends are respectively connected to two upper short tubes 114a, the two ends of the upper reinforcement tube 115a are respectively connected to an upper long tube 112a and an upper connecting tube 113a, the lower connecting tube 113b is arranged in the middle of the two lower long tubes 112b and the two ends are respectively connected to the two lower short tubes 114b, the two ends of the lower reinforcement tube 115b are respectively connected to a lower long tube 112b and the lower connecting tube 113b, the upper reinforcement tube 115a and the lower reinforcement tube 115b are opposite to each other in upper and lower directions, the support tube 117 is connected between the upper long tube 112a and the lower long tube 112b, and the fixing column 131 and the stacking foot bowl 12 are arranged at the upper and lower ends of the vertical tube 116.

[0037] The frame body 11 is formed by welding a number of square tubes with three axes orthogonal, wherein the X direction is the length direction, the Y direction is the width direction, and the Z direction is the height direction. This structure is stable and can withstand the pressure of the boom 2, and each frame body 11 can position two booms 2. The placement state of the boom 2 is that the turning position is centered and located at the top, and the turning position is located between the two lower reinforcement tubes 115b of the upper boom transport bracket 1. The width dimension of the boom 2 is much smaller than the length dimension, so this frame body 11 structure not only increases a space for the boom 2 to be placed, but also increases the width of the frame body 11 itself, avoiding its tipping over due to unstable center of gravity when it is stacked under load, thereby improving the safety of use.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, one end of the upper long tube 112a and the upper connecting tube 113a is the front support section of the boom and is provided with a front limit assembly 118, and the other end is the rear support section of the boom and is provided with a plurality of rear limit assemblies 119 arranged side by side along the X direction; the front limit assembly 118 includes a pair of limit blocks 1181 and a limit pin 1182 passing through the pair of limit blocks 1181 along the X direction, and the rear limit assembly 119 includes a plurality of inverted L-shaped folded tubes 1191 arranged along the X direction, and adjacent inverted L-shaped folded tubes 1191 are separated to form a placement channel; the heights of the front limit assembly 118 and the rear limit assembly 119 are both lower than the lowest point when the movable column 132 is laid flat.

[0039] The two ends of the boom 2 are respectively provided with a front axle 21 and a rear axle 22, and both ends of the front axle 21 and the rear axle 22 are slightly protruding from the two sides of the boom 2, wherein the front axle 21 is limited in the front limit assembly 118, and the rear axle 22 is limited in the rear limit assembly 119. The outer end of the front axle 21 can only fall between the two limit blocks 1181 from top to bottom, and the lower part of the front axle 21 is located on the upper long tube 112a or the upper connecting tube 113a, and then the upper part is limited by the limit pin 1182; the outer end of the rear axle 22 enters the inner side of the corner of the inverted L-shaped folded tube 1191 from the placement channel, and the lower part of the rear axle 22 is also located on the upper long tube 112a or the upper connecting tube 113a, and the upper part is limited by the inverted L-shaped folded tube 1191. Here, in order to make the boom transport bracket 1 applicable to various types of booms 2, multiple inverted L-shaped folded tubes 1191 are provided. When the boom 2 is in place, the rear axle 22 first passes through the corresponding placement channel, and the front axle 21 can be placed between the limit blocks 1181 after the boom 2 adjusts its X-direction position. The front limit assembly 118 and the rear limit assembly 119 are located near the two ends of the upper long side 112a, and the placement position of the movable column 132 is also at the two ends of the upper long side 112a, so in order not to affect the horizontal placement of the movable column 132, the height of the front limit assembly 118 and the rear limit assembly 119 cannot exceed the lowest point of the movable column 132 when it is horizontally placed.

[0040] like Figures 1 to 3 As shown, four supporting protrusions 111 corresponding to each movable column 132 are provided on the frame body 11 , and the supporting protrusions 111 are located on the upper part of the upper long tube 112 a and support the free end of the movable column 132 in a horizontal state.

[0041] The movable column 132 is a swingable component. If the supporting protrusion 111 is not used for limiting, the end of the movable column 132 close to the rotating shaft 133 may tilt upward when in a horizontal position, interfering with the cooperation between the stacking foot bowl 12 and the top of the fixed column 131. Therefore, the supporting protrusion 111 is needed to limit the position of the movable column 132.

[0042] like Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, a front guard plate 1183 is provided on the front outer side of the upper long tube 112a to cover the outer sides of the two limit blocks 1181, and a rear guard plate 1192 is provided on the rear outer side of the upper long tube 112a to cover the outer sides of the entire inverted L-shaped folded tube 1191.

[0043] The front guard plate 1183 is intended to separate the front axle 21 from the side of the frame body 11 when it falls, and the rear guard plate 1192 is intended to separate the rear axle 22 from the side of the frame body 11 when it falls. On the one hand, it can facilitate the boom 2 to find the correct falling position when it is in place, and on the other hand, it can also separate the front axle 21 or the rear axle 22 from the operator to avoid the risk of pinching people when the boom 2 falls.

[0044] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A boom transport bracket that saves storage space, characterized by: It includes a frame body, four stacking foot bowls and four folding pillars, each stacking foot bowl and a folding pillar are arranged on a corner of the frame body opposite to each other up and down, the folding pillar includes a fixed column with a U-shaped cross-section and a movable column rotatably connected to the upper part of the fixed column, the U-shaped opening direction of each fixed column is toward another fixed column at the other end of the long side of the frame body, the rotating shaft of the movable column is along the wide side direction of the frame body, and when the movable column is laid flat, the part of the fixed column that is higher than the movable column matches the bottom depression of the stacking foot bowl.

2. The space-saving boom transport bracket according to claim 1, characterized in that: A fixing pin is passed through the upper portion of the fixing column along the wide side direction of the frame body, and a pin hole matching the fixing pin is provided in the middle portion of the movable column.

3. The space-saving boom transport bracket according to claim 2, characterized in that: A pair of long holes for the rotating shaft of the movable column to pass through are arranged in the middle of the fixed column, and the long hole has a vertical section, and the center line of the vertical section and the axis of the fixed pin are in the same vertical plane.

4. The space-saving boom transport bracket according to claim 3 is characterized in that: The long hole also has an inclined section located at the upper end of the vertical section, and the upper end of the inclined section is inclined toward the tilting direction of the movable column.

5. The space-saving boom transport bracket according to claim 1, characterized in that: The frame body includes a pair of upper long tubes, a pair of lower long tubes, a pair of upper connecting tubes, and a lower connecting tube along the X direction, a pair of upper short tubes, a pair of lower short tubes, two pairs of upper reinforcing tubes and two pairs of lower reinforcing tubes along the Y direction, and four vertical tubes and several pairs of supporting tubes along the Z direction; the four vertical tubes, a pair of upper long tubes, a pair of lower long tubes, a pair of upper short tubes, and a pair of lower short tubes are assembled into a rectangular parallelepiped skeleton structure, a pair of upper connecting tubes are closely arranged in the middle of the two upper long tubes and the two ends are respectively connected to the two upper short tubes, the two ends of the upper reinforcing tube are respectively connected to an upper long tube and an upper connecting tube, the lower connecting tube is arranged in the middle of the two lower long tubes and the two ends are respectively connected to the two lower short tubes, the two ends of the lower reinforcing tube are respectively connected to a lower long tube and the lower connecting tube, the upper reinforcing tube and the lower reinforcing tube are opposite to each other up and down, the supporting tube is connected between the upper long tube and the lower long tube, and the fixing column and the stacking foot bowl are arranged at the upper and lower ends of the vertical tubes.

6. The space-saving boom transport bracket according to claim 5, characterized in that: One end of the upper long tube and the upper connecting tube is the front support section of the boom and each is provided with a front limit assembly, and the other end is the rear support section of the boom and each is provided with a rear limit assembly; the front limit assembly includes a pair of limit blocks and a limit pin passing through the pair of limit blocks along the X direction, and the rear limit assembly includes a plurality of inverted L-shaped folded tubes arranged along the X direction, and adjacent inverted L-shaped folded tubes are spaced apart to form a placement channel; the heights of the front limit assembly and the rear limit assembly are both lower than the lowest point of the movable column when it is laid flat.

7. The space-saving boom transport bracket according to claim 6, characterized in that: A supporting protrusion is provided on one side of the front limit assembly. The supporting protrusion is located on the upper part of the upper long tube and supports the free end of the movable column in a horizontal state.

8. The space-saving boom transport bracket according to claim 6, characterized in that: A front guard plate for shielding the outer sides of two limit blocks is arranged on the front outer side of the upper long tube, and a rear guard plate for shielding the outer sides of all inverted L-shaped folded tubes is arranged on the rear outer side of the upper long tube.

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