Width-adjustable land cattle

Abstract

The utility model belongs to the field of logistics handling equipment, and particularly relates to a width-adjustable truck, which comprises a manual hydraulic component used for providing lifting force, a fixing frame used for transmitting power, a pallet fork component used for lifting goods, and a rocker component used for connecting the fixing frame and the pallet fork component, the fixing frame comprises a jacking part and a connecting part; the rocker assembly comprises a rocker, a boss arranged on the circumferential side wall of the rocker and a set of rocker arms arranged opposite to the boss. The pallet fork assembly comprises a group of pallet fork bodies and auxiliary jacking assemblies arranged below the pallet fork bodies; on the basis of an original carrier, the structures of the rocker assembly and the pallet fork assembly are improved, and on the premise that other parts work normally, the two pallet fork bodies are translated and slide in the extension direction of the rocker, so that trays of different sizes and specifications can be matched with the carrier for use; the practicability and the suitability of the land cattle provided by the utility model are embodied.

Description

Technical Field

[0001] The utility model belongs to the field of logistics handling equipment, and in particular relates to a width-adjustable ground bull. Background Art

[0002] The ground bull is a commonly used logistics handling tool, widely used in supermarkets, shopping malls, warehouses, factories, logistics handling and other occasions. Due to its simple structure, small body size, easy operation, high handling efficiency, strong carrying capacity and low maintenance cost, the ground bull has been widely used in real life.

[0003] At present, conventional floor bulls are used in conjunction with pallets to transport goods, which can effectively reduce the labor intensity of workers in handling. However, floor bulls are usually divided into two specifications based on the different widths between their forks, namely 550mm and 685mm. This makes conventional floor bulls unable to adapt to pallets of various sizes. When the pallets used by the company are non-standard parts, the forks of the conventional floor bulls cannot be inserted into the bottom of the pallet, resulting in the inability to check in. In this way, workers need to replace different floor bulls to carry out the transportation of goods, which requires floor bulls of multiple different specifications, increasing production costs. Utility Model Content

[0004] In view of this, the utility model provides a width-adjustable ground bull, which is mainly aimed at trial working conditions with relatively small tonnage but various pallet types. Without affecting the handling effect of the ground bull, a special structural coordination method is used to make the distance between the two forks adjustable, aiming to achieve the effect of using one ground bull to cooperate with pallets of various sizes, thereby improving the practicality and adaptability of the ground bull.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows:

[0006] A width-adjustable floor bull comprises a manual hydraulic assembly for providing lifting force, a handle being provided at the power input end of the manual hydraulic assembly, a steering wheel being connected to the bottom of the manual hydraulic assembly via a rotating shaft, a connecting plate being rotatably sleeved on the rotating shaft, the width-adjustable floor bull further comprising: a fixed frame for transmitting power, a fork assembly for lifting cargo, and a rocker assembly connecting the fixed frame and the fork assembly, wherein:

[0007] A fixing frame, the fixing frame comprising a lifting portion and a connecting portion connected in one piece, the lifting portion being connected to a power output end of the manual hydraulic assembly;

[0008] The rocker assembly includes a rocker rotatably connected to the connecting portion, a boss being provided on the circumferential side wall of the rocker, the length of the boss being equal to the length of the rocker, and a group of rocker arms being provided in parallel on the circumferential side wall of the rocker at a position opposite to the boss, and one end of each rocker arm is fixedly connected to the two end portions of the rocker, respectively, and the other end is rotatably connected to the connecting plate, when the manual hydraulic assembly outputs power, the rocker in the rocker assembly moves vertically upward following the fixed frame, and at the same time, the rocker begins to rotate with itself as the axis, and when the rocker reaches a new position, the overall operating effect of the boss is to sweep a fan-shaped area from bottom to top with the rocker as the axis at that position;

[0009] A fork assembly comprising a set of fork bodies and an auxiliary lifting assembly disposed below each fork body, wherein the fork bodies are disposed parallel to one side of the connecting portion and are identical in structure, and each fork body is L-shaped as a whole and consists of an integrally provided lifting portion and a bearing portion, wherein the lifting portion is sleeved on the rocker via a sliding hole, the sliding hole consisting of a circular rotating hole and a fan-shaped clearance hole that are interconnected, the fan-shaped clearance hole having a fan-shaped area equal to the fan-shaped area swept by the boss, and furthermore, a mounting slot is provided on the lifting portion, and a through slot is provided on the bearing portion;

[0010] On this basis, the auxiliary jacking assembly includes a sliding block that is fitted on the rocker, and the sliding block is located in the mounting groove on the lifting part. A transmission arm is fixed on the sliding block, and the end of the transmission arm is rotatably connected to a transmission rod, and the other end of the transmission rod is connected to a driven wheel assembly through an L-shaped connector.

[0011] Preferably, in the rocker assembly, the rocker, boss, and rocker arm are all made of 40Cr.

[0012] Preferably, in the fork assembly, the distance between the fork bodies of a group is adjusted by the sliding fit between the lifting portion and the rocker, and the distance between the fork bodies of a group ranges from 0 to 700 mm.

[0013] More preferably, in the auxiliary jacking assembly, the L-shaped connecting member is composed of an integrally connected short side portion, a first rotating shaft, and a group of parallel long side portions, the short side portion is located above a group of the long side portions, and in addition, the short side portion is rotatably connected to the transmission rod, the first rotating shaft is rotatably connected to the bottom end of the fork body, and the driven wheel assembly is provided between a group of the long side portions.

[0014] Furthermore, the driven wheel assembly includes a second rotating shaft whose two ends are respectively rotatably connected to the end portions of a group of the long side portions, and a group of parallel driven wheel brackets are fixedly connected to the second rotating shaft, a group of driven wheels are arranged between the group of driven wheel brackets, and a group of driven wheels is always in contact with the ground.

[0015] The beneficial effects of the present invention are:

[0016] Generally speaking, the present invention improves the structure of the rocker assembly and the fork assembly on the basis of the original ground bull. Specifically: a boss is provided on the rocker, and the lifting part of the fork body is fitted and sleeved with the rocker through a sliding hole; the sliding block of each auxiliary lifting assembly in the fork assembly is fitted and sleeved with the rocker; based on the above structural improvements, although the provision of the boss partially reduces the lifting capacity of the ground bull, under the premise that the other components are working normally, the two fork bodies can be translated and slid along the extension direction of the rocker, which can meet the needs of pallets of different sizes and specifications for use with the ground bull. For use conditions where the cargo tonnage is relatively small but the pallet sizes and specifications are diverse, the practicality and adaptability of the width-adjustable ground bull provided by the present invention are reflected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the specific structure of the rocker assembly in the present utility model;

[0020] Figure 3 This is a schematic diagram of the specific structure of the fork body in the utility model;

[0021] Figure 4 This is a schematic diagram of the specific structure of the fork body in the utility model in the raised state;

[0022] Figure 5 This is a schematic diagram of the specific structure of the auxiliary jacking component in the utility model;

[0023] Figure 6 This is a schematic diagram of the operating state of the auxiliary jacking component of the utility model when it is in the lifting state. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The ground bull is a manual hydraulic transport truck or manual pallet truck, which is commonly used for transporting goods in warehouses, factories, supermarkets and other places. The ground bull uses a set of forks to cooperate with the gap at the bottom of the pallet, and the hydraulic system provides lifting power to complete the lifting of the goods; then through the steering wheels and driven wheels set at the bottom, the staff completes the transportation of the goods when pulling the ground bull.

[0027] However, due to the limitations of their size specifications, conventional floor bulls cannot be adaptively used with pallets of various sizes and specifications. If multiple floor bulls are set up, the production cost will increase. In view of this, the utility model improves the structure of the rocker assembly and the fork assembly on the basis of the original floor bull, and proposes a width-adjustable floor bull for use in conditions where the cargo tonnage is relatively small but the pallets have various sizes and specifications. The purpose is to achieve the effect of using one floor bull to cooperate with pallets of various sizes, thereby improving the practicality and adaptability of the floor bull.

[0028] The solution provided by the utility model will be described in detail below with reference to the accompanying drawings.

[0029] A width adjustable ground cattle, such as Figure 1As shown, it includes a manual hydraulic component 1 for providing lifting force. The power input end of the manual hydraulic component 1 is provided with a handle 101. The bottom of the manual hydraulic component 1 is connected to a steering wheel 102 through a rotating shaft, and a connecting plate 103 is rotatably sleeved on the rotating shaft.

[0030] It should be noted that the above structure is a necessary structure for the normal use of the ground bull provided by the present invention, and since the manual hydraulic component 1, the steering wheel 102, and the connecting plate 103 are all conventional settings of the ground bull that can be known to technical personnel in this field based on the existing technology, the working principle thereof will not be further elaborated here, and only the working effect corresponding to the above structure will be put into use.

[0031] In this technical solution, if Figure 1 As shown, the width-adjustable ground bull further comprises: a fixed frame 2 for transmitting power, a fork assembly 4 for lifting cargo, and a rocker assembly 3 connecting the fixed frame 2 and the fork assembly 4.

[0032] Among them, Figure 1 As shown, the fixing frame 2 includes a lifting portion 201 and a connecting portion 202 that are integrally connected, and the lifting portion 201 is connected to the power output end of the manual hydraulic assembly 1 .

[0033] like Figure 1-2 As shown, the rocker assembly 3 includes a rocker 301 rotatably connected to the connecting portion 202, and a boss 302 is provided on the circumferential side wall of the rocker 301, and the length of the boss 302 is equal to the length of the rocker 301. In addition, on the circumferential side wall of the rocker 301, a group of rocker arms 303 are provided in parallel at a position opposite to the boss 302, and one end of the group of rocker arms 303 is fixedly connected to the two end portions of the rocker 301, and the other end is rotatably connected to the connecting plate 103.

[0034] Based on the above structure, when the manual hydraulic assembly 1 outputs power, the rocker 301 in the rocker assembly 3 moves vertically upward following the fixed frame 2, and at the same time the rocker 301 starts to rotate with itself as the axis. When the rocker 301 reaches a new position, the overall operating effect of the boss 302 is to sweep a fan-shaped area from bottom to top with the rocker 301 as the axis at this position.

[0035] In addition, Figure 1 、 Figure 3-6 As shown, the fork assembly 4 includes a set of fork bodies 401 and an auxiliary lifting assembly 5 provided below each fork body 401 .

[0036] A set of fork bodies 401 are arranged parallel to one side of the connecting portion 202 and have the same structure. Each fork body 401 is L-shaped as a whole and consists of an integral lifting portion 402 and a bearing portion 403. The lifting portion 402 is sleeved on the rocker 301 through a sliding hole. Figure 3 As shown, the sliding hole is composed of a circular rotating hole 404 and a fan-shaped clearance hole 405 that are interconnected. The fan-shaped area of ​​the fan-shaped clearance hole 405 is equal to the area of ​​the fan-shaped area swept by the boss 302.

[0037] Based on the above structure, when the fan-shaped area of ​​the fan-shaped clearance hole 405 is equal to the area of ​​the fan-shaped area swept by the boss 302, that is, the rotational sweeping action of the boss 302 following the rotation of the rocker 301 is all performed within the fan-shaped clearance hole 405, when the manual hydraulic assembly 1 outputs power, a group of fork bodies 401 follow the rocker 301 to move vertically upward, but will not follow the rocker 301 to perform rotational movement at the same time, achieving the following effect. Figure 4 In addition, the lifting portion 402 is also provided with a mounting groove 406, the bearing portion 403 is provided with a through slot 407, such as Figure 3 shown.

[0038] like Figure 5-6 As shown, the auxiliary lifting assembly 5 includes a sliding block 501 that is fitted on the rocker 301, and the sliding block 501 is located in the mounting groove 406 on the lifting portion 402. A transmission arm 502 is fixedly provided on the sliding block 501, and the end of the transmission arm 502 is rotatably connected to a transmission rod 503, and the other end of the transmission rod 503 is connected to a driven wheel assembly through an L-shaped connecting member 504; wherein the L-shaped connecting member 504 is composed of an integrally connected short side portion 505, a first rotating shaft 506, and a group of parallel long side portions 507, and the short side portion 505 is located in a Above the group of long sides 507, in addition, the short side 505 is rotatably connected to the transmission rod 503, the first rotating shaft 506 is rotatably connected to the bottom end of the fork body 401, and the driven wheel assembly is provided between a group of long sides 507, and the driven wheel assembly includes a second rotating shaft 508 whose two ends are rotatably connected to the end of a group of long sides 507 respectively, and a group of parallel driven wheel brackets 509 are fixedly connected to the second rotating shaft 508, and a group of driven wheels 510 are provided between a group of driven wheel brackets 509, and a group of driven wheels 510 are always in contact with the ground.

[0039] Based on the above embodiment, when the manual hydraulic assembly 1 outputs power and a group of fork bodies 401 follow the rocker 301 to move vertically upward, due to the setting of the boss 302, the sliding block 501 that is sleeved with the rocker 301 follows the rocker 301 to perform a bottom-up rotational movement toward the driven wheel assembly. On this basis, the transmission arm 502 on the sliding block 501 moves toward the driven wheel assembly and pushes the transmission rod 503 to move in the same direction. At this time, the transmission rod 503 also pushes the short side portion 505 in the direction of the driven wheel assembly. Since the L-shaped connecting member 504 is rotatably connected to the bottom end of the fork body 401 through the first rotating shaft 506, and the short side portion 505 is located above a group of long side portions 507, the long side portion 507 rotates from top to bottom with the first rotating shaft 506 as the axis in the direction close to the manual hydraulic assembly 1, achieving the following effect. Figure 6 In the structure shown, since a group of driven wheels are always in contact with the ground, the rotational motion of a group of long sides 507 is converted into the vertical upward lifting motion of the first rotating shaft 506, and the distance of the lifting motion is equal to the distance of the power output of the manual hydraulic component 1. In this process, a group of driven wheels adaptively rolls in the direction close to the manual hydraulic component 1 to complete the lifting action of the ground bull provided by the utility model.

[0040] Based on the whole process of the above-mentioned lifting action, it is shown that under the above-mentioned structure, the normal lifting action of the ground bull is not affected. It can be concluded that: as the core of the present invention, when a group of fork bodies 401 slide on the rocker 301 along the extension direction of the convenient surface of the rocker 301 through the lifting part 402, the lifting part 402, the sliding block 501 and the rocker 301 always maintain the above-mentioned matching mode, so that the distance between a group of fork bodies 401 becomes adjustable, but the normal lifting action of the ground bull is not affected, and the effect of using one ground bull to match pallets of various sizes is achieved, which improves the practicality and adaptability of the ground bull. On this basis, the distance range between a group of fork bodies 401 is 0~700mm.

[0041] In addition, in the floor bull under the structure provided by the present invention, its core bearing component for lifting is the boss 302 in the rocker assembly 3. Therefore, the present invention uses 40Cr as the material of the rocker assembly 3, and makes the width-adjustable floor bull mainly for use in conditions where the cargo tonnage is relatively small but the pallet sizes and specifications are diverse.

[0042] Specifically, when using the width-adjustable ground bull provided by the present invention to transport goods, first adjust the distance between a set of fork bodies 401 according to the gap at the bottom of the pallet, then the staff uses the handle 101 to push the ground bull, insert a set of fork bodies 401 into the gap at the bottom of the pallet, and then control the manual hydraulic component 1 to start working, complete the lifting of the goods by the ground bull, and the steering wheel 102 and the driven wheel 510 cooperate to transport and place the goods.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A width-adjustable ground bull, comprising a manual hydraulic assembly for providing lifting force, a handle provided at the power input end of the manual hydraulic assembly, a steering wheel connected to the bottom of the manual hydraulic assembly via a rotating shaft, a connecting plate rotatably sleeved on the rotating shaft, characterized in that: The width-adjustable ground bull further comprises: a fixed frame for transmitting power, a fork assembly for lifting cargo, and a rocker assembly connecting the fixed frame and the fork assembly, wherein: A fixing frame, the fixing frame comprising a lifting portion and a connecting portion connected in one piece, the lifting portion being connected to a power output end of the manual hydraulic assembly; The rocker assembly includes a rocker rotatably connected to the connecting portion, a boss being provided on the circumferential side wall of the rocker, the length of the boss being equal to the length of the rocker, and a group of rocker arms being provided in parallel on the circumferential side wall of the rocker at a position opposite to the boss, and one end of each rocker arm is fixedly connected to the two end portions of the rocker, respectively, and the other end is rotatably connected to the connecting plate, when the manual hydraulic assembly outputs power, the rocker in the rocker assembly moves vertically upward following the fixed frame, and at the same time, the rocker begins to rotate with itself as the axis, and when the rocker reaches a new position, the overall operating effect of the boss is to sweep a fan-shaped area from bottom to top with the rocker as the axis at that position; A fork assembly comprising a set of fork bodies and an auxiliary lifting assembly disposed below each fork body, wherein the fork bodies are disposed parallel to one side of the connecting portion and are identical in structure, and each fork body is L-shaped as a whole and consists of an integrally provided lifting portion and a bearing portion, wherein the lifting portion is sleeved on the rocker via a sliding hole, the sliding hole consisting of a circular rotating hole and a fan-shaped clearance hole that are interconnected, the fan-shaped clearance hole having a fan-shaped area equal to the fan-shaped area swept by the boss, and furthermore, a mounting slot is provided on the lifting portion, and a through slot is provided on the bearing portion; On this basis, the auxiliary jacking assembly includes a sliding block that is fitted on the rocker, and the sliding block is located in the mounting groove on the lifting part. A transmission arm is fixed on the sliding block, and the end of the transmission arm is rotatably connected to a transmission rod, and the other end of the transmission rod is connected to a driven wheel assembly through an L-shaped connector.

2. The width-adjustable ground bull according to claim 1, characterized in that: In the rocker assembly, the rocker, boss, and rocker arm are all made of 40Cr.

3. The width-adjustable ground bull according to claim 2, characterized in that: In the fork assembly, the distance between the fork bodies of a group is adjusted by the sliding cooperation between the lifting part and the rocker, and the distance between the fork bodies of a group ranges from 0 to 700 mm.

4. The width-adjustable ground bull according to claim 3, characterized in that: In the auxiliary jacking assembly, the L-shaped connecting member is composed of an integrally connected short side portion, a first rotating shaft, and a group of parallel long side portions, the short side portion is located above a group of the long side portions, in addition, the short side portion is rotatably connected to the transmission rod, the first rotating shaft is rotatably connected to the bottom end of the fork body, and the driven wheel assembly is provided between a group of the long side portions.

5. The width-adjustable ground bull according to claim 4, characterized in that: The driven wheel assembly includes a second rotating shaft with both ends rotatably connected to the end portions of a group of the long side portions, a group of parallel driven wheel brackets are fixedly connected to the second rotating shaft, a group of driven wheels are arranged between the group of driven wheel brackets, and a group of driven wheels is always in contact with the ground.

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