An oil barrel gripping mechanism and a transfer forklift

Abstract

The present invention discloses an oil barrel gripping mechanism and a transfer forklift, which relates to the technical field of forklifts and includes a guide frame. A lifting platform is slidably installed on the guide frame in the vertical direction. Two parallel arms are horizontally installed on the lifting platform. A semi-circular frame is rotatably installed between the two arms, and the rotation axis of the semi-circular frame is horizontal and perpendicular to the arms. An installation rod is provided on the semi-circular frame. One end of the installation rod is provided with an anti-detachment component, and the other end of the installation rod is provided with a clamping component. A motor for driving the semi-circular frame to rotate is installed on the arm. When transferring an oil barrel in a vertical state to a predetermined position and placing it horizontally, the entire process of tilting, lifting, transporting, and placing the oil barrel is completely mechanically controlled in the present invention, which is safe and stable, and avoids the situation of knocking the oil barrel when manually laying it down.

Description

Technical Field

[0001] The present invention relates to the technical field of forklifts, and specifically to an oil barrel gripper mechanism and a transfer forklift. Background Art

[0002] When transporting oil barrels, it is necessary to ensure stability and avoid collision and friction. Therefore, a special oil barrel gripper is generally used to grab the oil barrel and transport it by a forklift.

[0003] The Chinese utility model patent with the publication number of CN215402919U discloses an oil barrel clamping device, which includes a column and a forklift connecting frame arranged perpendicular to each other. One end of the column far from the forklift connecting frame is provided with a first eagle beak clamping head. A set of connecting plates are respectively and correspondingly hinged on both sides of the column where the first eagle beak clamping head is located. The other side of the connecting plate far from the column is hinged with a second eagle beak clamping head. A clamping member for driving the two sets of connecting plates to approach each other is arranged on the connecting plate and the column.

[0004] The Chinese utility model patent with the publication number of CN210915192U discloses a forklift gripper, which includes a shoe cover plate; a slot is arranged on the shoe cover plate; a fixture mechanism for clamping the oil barrel is arranged on the bottom surface of the shoe cover plate; the fixture mechanism includes a barrel gripper, a vertical rod, and a frame plate for installing the barrel gripper; four frame plates that divide the bottom surface of the shoe cover plate into four regions are evenly arranged around the circumference of the vertical rod; a slideway for the barrel gripper to slide back and forth is arranged on the frame plate; the slideway is arranged parallel to the shoe cover plate; the barrel gripper includes a fixed seat; a hole groove matching the slideway is arranged in the fixed seat; touch-type clamps are arranged on both vertical side surfaces of the fixed seat; hooks and top blocks are arranged on the touch-type clamps.

[0005] The existing oil barrel grippers can only vertically place the oil barrel at a designated position after grabbing the oil barrel. However, during storage and transportation, it is often necessary to place the oil barrel flat, which still relies on manual labor to lay down the oil barrel. The oil barrel filled with oil is very heavy, and manual operation is likely to cause bumps to the oil barrel and even lead to oil leakage. Based on this, how to design an oil barrel gripper that can place the oil barrel flat at a designated position after grabbing the oil barrel is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide an oil barrel gripper mechanism and a transfer forklift to solve the above-mentioned deficiencies in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: An oil barrel gripping mechanism, comprising a guide frame, on which a lifting platform is slidably mounted in the vertical direction. Two parallel arms are horizontally mounted on the lifting platform. A semi-circular frame is rotatably mounted between the two arms, and the rotation axis of the semi-circular frame is horizontal and perpendicular to the arms. An installation rod is provided on the semi-circular frame. One end of the installation rod is provided with an anti-detachment component, and the other end of the installation rod is provided with a clamping component. A motor for driving the rotation of the semi-circular frame is mounted on the arm.

[0008] As a preferred technical solution of the present invention, a support rod is mounted at the bottom of the guide frame, and a support block is fixedly mounted at the end of the support rod. A rubber layer is provided on the surface of the support block.

[0009] As a preferred technical solution of the present invention, the installation rod is perpendicular to the rotation axis of the semi-circular frame, and the installation rod is slidably engaged with the semi-circular frame along its length direction. The arm is slidably engaged with the lifting platform along its length direction. A positioning hole is provided on the arm, and a pin adapted to the positioning hole is mounted on the lifting platform.

[0010] As a preferred technical solution of the present invention, an incomplete gear is fixedly mounted on the output shaft of the motor, and a straight rack adapted to the incomplete gear is horizontally and fixedly mounted on the lifting platform.

[0011] As a preferred technical solution of the present invention, a telescopic spring sleeved on the support rod is mounted between the support block and the guide frame. A vertical groove is provided on the support rod, and a plug rod vertically and fixedly mounted on the bottom of the lifting platform and adapted to the vertical groove is provided.

[0012] As a preferred technical solution of the present invention, the anti-detachment component includes an arc-shaped plate fixedly mounted on the installation rod. A limiting belt is mounted at one end of the arc-shaped plate, and a socket adapted to the limiting belt is provided at the other end of the arc-shaped plate.

[0013] As a preferred technical solution of the present invention, the clamping component includes a first clamping block fixedly mounted on the installation rod. A plug block adapted to the gap at the bottom of the oil barrel is slidably mounted on the first clamping block. A telescopic rod parallel to the installation rod is movably mounted on the installation rod, and a second clamping block is fixedly mounted at one end of the telescopic rod.

[0014] As a preferred technical solution of the present invention, both the telescopic rod and the installation rod are round rods and their axes coincide. A retaining ring adapted to the semi-circular frame is fixedly mounted on the installation rod. A first receiving groove is provided on the inner wall of the semi-circular frame, and an elastic member is mounted in the first receiving groove. A second receiving groove adapted to the first receiving groove is provided on the installation rod, and a positioning block is slidably mounted in the second receiving groove.

[0015] As a preferred technical solution of the present invention, a sector-shaped groove is provided on the mounting rod, and an arc-shaped block that cooperates with the sector-shaped groove is fixedly installed on the telescopic rod; the end face of the positioning block facing the center of the mounting rod is a hemispherical surface, the circumferential surface of the arc-shaped block away from the center of the mounting rod is an arc surface, and a positioning groove that cooperates with the positioning block is provided on the circumferential surface of the arc-shaped block away from the center of the mounting rod.

[0016] The present invention also provides a transfer forklift, including the above-mentioned oil barrel gripping mechanism.

[0017] In the above technical solution, for the transfer forklift including the oil barrel gripping mechanism provided by the present invention, when transferring an oil barrel in a vertical state to a predetermined position for horizontal placement, the oil barrel is first tilted at a certain angle, and then the oil barrel is lifted through the cooperation of the anti-detachment component and the clamping component, and the oil barrel is rotated while lifting the oil barrel, so that the oil barrel is in a horizontal state; after the forklift transfers the oil barrel to the predetermined position, as long as the lifting platform is controlled to descend, the oil barrel can be placed flat at the predetermined height. In the present invention, the entire process of tilting, lifting, transferring, and placing the oil barrel is completely mechanically controlled, safe and stable, and avoids the situation of knocking the oil barrel when manually laying down the oil barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a first three-dimensional structural schematic diagram of the oil barrel gripping mechanism in the embodiment;

[0020] Figure 2 It is a second three-dimensional structural schematic diagram of the oil barrel gripping mechanism in the embodiment;

[0021] Figure 3 For Figure 2 the enlarged schematic diagram at A in

[0022] Figure 4 It is a top view of the oil barrel gripping mechanism in the embodiment;

[0023] Figure 5 For Figure 4 the enlarged schematic diagram at B in

[0024] Figure 6 It is a structural schematic diagram of the connection part of the mounting rod, telescopic rod and semi-circular frame in the embodiment;

[0025] Figure 7 For Figure 6 the schematic diagram of the a-a cross-section in

[0026] Figure 8 is Figure 6 a schematic view of the b-b cross-section in

[0027] Explanation of reference numerals:

[0028] 1. Guide frame; 2. Lifting platform; 3. Support arm; 4. Semi-circular frame; 401. First receiving groove; 5. Mounting rod; 501. Second receiving groove; 502. Sector groove; 6. Anti-disengagement component; 601. Arc plate; 602. Limit belt; 603. Socket; 7. Clamping component; 701. First clamping block; 702. Insert block; 703. Telescopic rod; 704. Second clamping block; 8. Motor; 9. Support rod; 10. Support block; 11. Pin; 12. Incomplete gear; 13. Straight rack; 14. Telescopic spring; 15. Insert rod; 16. Stop ring; 17. Elastic member; 18. Positioning block; 19. Arc block; 1901. Positioning groove. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below in conjunction with the accompanying drawings.

[0030] This embodiment provides an oil barrel gripping mechanism and a transfer forklift including the oil barrel gripping mechanism. As Figure 1 and Figure 2 shown, the oil barrel gripping mechanism includes a rectangular guide frame 1, the guide frame 1 is fixedly installed on the vehicle body of the forklift, a lifting platform 2 is slidably installed on the guide frame 1 in the vertical direction, and a driving component for driving the lifting platform 2 to lift is installed on the forklift. The driving component can adjust the lifting platform 2 to any height within a predetermined range and keep the height of the lifting platform 2 unchanged. The specific structure of the driving component is the prior art in this field and will not be elaborated here; two parallel support arms 3 are horizontally installed on the lifting platform 2, the support arms 3 are slidably matched with the lifting platform 2 along their lengths, positioning holes are provided on the support arms 3, and pins 11 adapted to the positioning holes are movably installed on the lifting platform 2; a semi-circular frame 4 is rotatably installed between the two support arms 3, and the rotation axis of the semi-circular frame 4 is horizontal and perpendicular to the support arms 3; an installation rod 5 is provided on the semi-circular frame 4, an anti-disengagement component 6 is arranged at one end of the installation rod 5, and a clamping component 7 is arranged at the other end of the installation rod 5; a motor 8 for driving the semi-circular frame 4 to rotate is installed on the support arm 3; a support rod 9 is installed at the bottom of the guide frame 1, a support block 10 is fixedly installed at the end of the support rod 9, and a rubber layer is provided on the surface of the support block 10; the installation rod 5 is a round rod, the installation rod 5 is perpendicular to the rotation axis of the semi-circular frame 4, and the installation rod 5 is slidably matched with the semi-circular frame 4 along its length.

[0031] Specifically, in the initial state, the oil barrel is placed vertically, and the semi-circular frame 4 is in a horizontal state. The operator first drives the forklift near the oil barrel, then controls the lifting platform 2 to descend to a predetermined height, and then makes a slight adjustment to the position of the forklift to make the anti-disengagement component 6 partially fit with the oil barrel. Then, the operator controls the arm 3 to move a short distance towards the lifting platform 2, and drives the semi-circular frame 4 to rotate through the motor 8. During this process, the anti-disengagement component 6 applies a thrust to the upper half of the oil barrel, while the support block 10 supports the bottom edge of the oil barrel, causing the oil barrel to tilt at a certain angle. In this embodiment, the specific tilt angle is 3°. During this process, the motor 8 synchronously drives the semi-circular frame 4 to rotate, so that the virtual axis of the semi-circular frame 4 always coincides with the axis of the oil barrel. When the oil barrel is in a tilted state, the operator clamps the lifted bottom edge of the oil barrel through the clamping component 7 and binds the oil barrel through the anti-disengagement component 6. Then, while the operator controls the lifting platform 2 to rise, the motor 8 continues to drive the semi-circular frame 4, the mounting rod 5, the anti-disengagement component 6, the clamping component 7 and the oil barrel as a whole to rotate until the oil barrel is adjusted to a horizontal state. To sum up, there are two stages for laying the oil barrel flat. The first is the stage of pushing the oil barrel to a tilted state. In this stage, the clamping component 7 does not clamp the oil barrel. The second is the stage of laying the tilted oil barrel completely flat. In this stage, the clamping component 7 clamps the oil barrel, and the oil barrel rises while being laid flat. After the oil barrel is laid flat, the motor 8 stops working. The clamping component 7 clamps the top of one end edge of the oil barrel, and the anti-disengagement component 6 supports the other end of the oil barrel, so that the oil barrel maintains a horizontal and stable state. Then the lifting platform 2 continues to rise until the oil barrel rises to a predetermined height. Subsequently, after the operator drives the forklift to a predetermined position, the lifting platform 2 is controlled to descend until the oil barrel is placed stably. Finally, the restraints of the anti-disengagement component 6 and the clamping component 7 on the oil barrel are released, and the lifting platform 2 is controlled to rise so that the anti-disengagement component 6 and the clamping component 7 are completely separated from the oil barrel.

[0032] Such as Figure 1 And Figure 5As shown in the figure, an incomplete gear 12 is fixedly installed on the output shaft of the motor 8, and a straight rack 13 that cooperates with the incomplete gear 12 is horizontally and fixedly installed on the lifting table 2. In this way, during the stage of lifting and laying flat the oil barrel, when the motor 8 starts, the incomplete gear 12 will immediately engage with the straight rack 13, so that the entire assembly of the support arm 3, the semi-circular frame 4, the mounting rod 5, the anti-disengagement assembly 6, the clamping assembly 7, and the motor 8 moves toward the guide frame 1 due to the interaction force between the incomplete gear 12 and the straight rack 13, and the motor 8 synchronously drives the semi-circular frame 4 to rotate. After the semi-circular frame 4 rotates 3°, the oil barrel enters an inclined state, and the incomplete gear 12 disengages from the straight rack 13. At this time, the operator restricts the position of the support arm 3 through the pin 11, so that the support arm 3 remains relatively stationary with respect to the lifting table 2. During the continuous operation of the motor 8, it will drive the semi-circular frame 4 and the incomplete gear 12 to rotate, but the support arm 3 will no longer translate. To sum up, in this embodiment, two actions, namely the translation of the support arm 3 and the rotation of the semi-circular frame 4, are realized by a single driving source of the motor 8. Moreover, after the support arm 3 is translated to the predetermined position, it will no longer translate, while the semi-circular frame 4 can continue to rotate. This not only improves the transportation efficiency but also significantly reduces the manufacturing cost.

[0033] During the actual use process, during the inclined stage of the oil barrel, it is necessary to ensure that the support block 10 is relatively stationary with respect to the guide frame 1. However, during the stage of the forklift transporting the oil barrel, the oil barrel already placed in the lower layer will interfere with the support block 10. Currently, the operator can only disassemble or adjust the position of the support block 10. In this way, during the process of transporting each oil barrel, the operator has to disassemble or adjust the position of the support block 10, which greatly reduces the transportation efficiency.

[0034] As Figure 2As shown, the support rod 9 and the guide frame 1 slide in the horizontal direction, and a telescopic spring 14 is installed between the support block 10 and the guide frame 1 and is sleeved on the support rod 9; a vertical groove is opened on the support rod 9, and an insertion rod 15 that cooperates with the vertical groove is vertically fixedly installed at the bottom of the lifting platform 2; specifically, when the lifting platform 2 is at the lowest point of its vertical stroke, the insertion rod 15 is inserted into the support rod 9, which limits the support rod 9 and the support block 10, and the support rod 9 and the support block 10 can only remain stationary relative to the guide frame 1, so that in the stage of tilting the oil drum (that is, the stage when the clamping assembly 7 has not yet clamped the raised bottom edge of the oil drum), the support rod 9 is The block 10 can support the bottom edge of the oil barrel, thereby promoting the tilting of the oil barrel; when the clamping assembly 7 clamps the raised bottom edge of the oil barrel, the lifting platform 2 rises, and the insertion rod 15 is also separated from the support rod 9, and the support rod 9 and the support block 10 are no longer restricted; in this way, when the forklift transports the oil barrel, the oil barrel that has been placed on the lower layer can push the support block 10 to move horizontally after contacting with the support block 10, and the support block 10 will not interfere with the oil barrel that has been placed on the lower layer, thereby ensuring that the forklift can travel to the predetermined placement position; the telescopic spring 14 can reset the support rod 9 and the support block 10 after the transportation is completed. In summary, in this embodiment, the operator does not need to disassemble the support rod 9 and the support block 10, nor does he need to adjust the position of the support rod 9 and the support block 10. After the lifting platform 2 rises from the lowest point, the insertion rod 15 also rises and automatically releases the limit on the support rod 9 and the support block 10, which significantly improves the efficiency of transportation.

[0035] like Figure 2 and Figure 5 As shown, the anti-slip assembly 6 includes an arc-shaped plate 601 fixedly mounted on the mounting rod 5, and the inner arc surface of the arc-shaped plate 601 is adapted to the surface of the oil drum; the operator first drives the forklift to the vicinity of the oil drum to be transported, and then controls the lifting platform 2 to descend to a predetermined height, and then slightly adjusts the position of the forklift so that the inner arc surface of the arc-shaped plate 601 fits the surface of the oil drum; a limiting belt 602 is installed at one end of the arc-shaped plate 601, and a socket 603 cooperating with the limiting belt 602 is opened at the other end of the arc-shaped plate 601; the operator inserts one end of the limiting belt 602 into the socket 603, so that the limiting belt 602 fits tightly to the surface of the oil drum, and the limiting belt 602 is in a tensioned state; in this way, the binding of the oil drum by the anti-slip assembly 6 is completed. It should be noted that, when the oil drum changes from a vertical state to an inclined state, the limiting belt 602 is not inserted into the socket 603, but the operator needs to wait until the oil drum changes to an inclined state before inserting one end of the limiting belt 602 into the socket 603. The specific structure of the limiting belt 602 and the socket 603 is prior art, and the specific structure can refer to the socket structure of a car seat belt, but is not limited to this structure, and will not be elaborated here.

[0036] like Figure 3 ,Figure 6 , Figure 7 and Figure 8 As shown in Figure 6 , Figure 7 and Figure 8 , the clamping assembly 7 includes a first clamping block 701 fixedly installed on the mounting rod 5, and a plug block 702 slidably installed on the first clamping block 701 and adapted to the gap at the bottom of the oil barrel; a telescopic rod 703 parallel to the mounting rod 5 is movably installed on the mounting rod 5, and a second clamping block 704 is fixedly installed at one end of the telescopic rod 703; the telescopic rod 703 is a round rod and coincides with the axis of the mounting rod 5. The mounting rod 5 is slidably engaged with the semi-circular frame 4, but the position where the mounting rod 5 moves relative to the semi-circular frame 4 is limited within a certain range, that is, the mounting rod 5 will not fall off the semi-circular frame 4. A retaining ring 16 adapted to the semi-circular frame 4 is fixedly installed on the mounting rod 5; a first receiving groove 401 is formed on the inner wall of the semi-circular frame 4, and an elastic member 17 is installed in the first receiving groove 401. In this embodiment, the elastic member 17 is an oval metal ring without external force. A second receiving groove 501 adapted to the first receiving groove 401 is formed on the mounting rod 5, and a positioning block 18 is slidably installed in the second receiving groove 501. In the initial state, the contact part of the positioning block 18 and the elastic member 17 is located on the contact surface between the mounting rod 5 and the semi-circular frame 4; a sector-shaped groove 502 is formed on the mounting rod 5, and the sector-shaped groove 502 and the second receiving groove 501 have an overlapping part. An arc-shaped block 19 adapted to the sector-shaped groove 502 is fixedly installed on the telescopic rod 703. The arc-shaped block 19 can rotate around the axis of the telescopic rod 703 in the sector-shaped groove 502, and can also move along the axis direction of the telescopic rod 703; the end surface of the positioning block 18 facing the center of the mounting rod 5 is a hemispherical surface, and the circumferential surface of the arc-shaped block 19 away from the center of the mounting rod 5 is an arc surface, and a positioning groove 1901 adapted to the positioning block 18 is formed on the circumferential surface of the arc-shaped block 19 away from the center of the mounting rod 5. The positioning groove 1901 is arc-shaped. When the positioning block 18 is inserted into the positioning groove 1901, the arc-shaped block 19 cannot rotate relative to the positioning block 18, but can rise axially relative to the positioning block 18 along the telescopic rod 703.

[0037] A circular raised structure is formed at the bottom of the oil barrel, and gaps are provided on the circular raised structure. The clamping assembly 7 clamps the circular raised structure at the bottom of the oil barrel. The specific usage process of the clamping assembly 7 is as follows: In the initial state, the oil barrel is placed vertically, the semi-circular frame 4 is in a horizontal state, and the mounting rod 5 is in a vertical state. The operator first drives the forklift to the vicinity of the oil barrel, and then controls the lifting platform 2 to descend, so that the bottom surface of the first clamping block 701 fits the upper surface of the circular edge at the bottom of the oil barrel, and the bottom surface of the second clamping block 704 just fits the ground. The operator adjusts the position of the insertion block 702 so that the insertion block 702 is inserted into the gap of the circular protrusion at the bottom of the oil barrel; during the process of the operator adjusting the oil barrel to an inclined state, the semi-circular frame 4 and the mounting rod 5 also rotate, and the circular protrusion at the bottom of the oil barrel will push the first clamping block 701, so that the first clamping block 701, the mounting rod 5 and the anti-disengagement assembly 6 move axially along the oil barrel relative to the semi-circular frame 4; it should be noted that such a design is because during the process of the oil barrel being adjusted from a vertical state to an inclined state, the axis is not coincident with the rotation axes of the semi-circular frame 4 and the mounting rod 5. Only by designing the mounting rod 5 to be able to slide relative to the semi-circular frame 4 can it be ensured that the arc-shaped plate 601 always fits the surface of the oil barrel and exerts a stable thrust on the oil barrel during this stage; after the oil barrel is adjusted to an inclined state, the operator pulls the second clamping block 704 axially downward along the mounting rod 5, driving the telescopic rod 703 and the arc-shaped block 19 to move downward synchronously until the arc-shaped block 19 fits the bottom surface of the fan-shaped groove 502. In this state, the upper surface of the second clamping block 704 is flush with the bottom surface of the circular protrusion at the bottom of the oil barrel; during the process of the arc-shaped block 19 moving downward, it pushes the positioning block 18, so that the positioning block 18 is partially inserted into the first receiving groove 401, and the elastic member 17 deforms under the thrust of the positioning block 18; since a part of the positioning block 18 is located in the second receiving groove 501 and the other part is located in the first receiving groove 401, the relative static state of the semi-circular frame 4 and the mounting rod 5 is ensured through the positioning function of the positioning block 18; then, the operator rotates the second clamping block 704 so that the upper surface of the second clamping block 704 fits the bottom surface of the circular protrusion at the bottom of the oil barrel. In this state, the first clamping block 701 fits the upper surface of the circular edge at the bottom of the oil barrel, the second clamping block 704 fits the lower surface of the circular edge at the bottom of the oil barrel, and the insertion block 702 is inserted into the gap of the circular protrusion at the bottom of the oil barrel, playing a clamping role on the circular protrusion at the bottom of the oil barrel; and in this state, the positioning groove 1901 just corresponds to the position of the positioning block 18, then the positioning block 18 will be inserted into the positioning groove 1901 under the resilience of the elastic member 17, but a part of the positioning block 18 is still located in the first receiving groove 401; thus, the positioning block 18 not only makes the semi-circular frame 4 and the mounting rod 5 relatively static, but also prevents the arc-shaped block 19, the telescopic rod 703 and the second clamping block 704 from rotating, ensuring that the second clamping block 704 can always cooperate with the first clamping block 701 and the insertion block 702 to clamp the circular protrusion at the bottom of the oil barrel of the oil barrel;In this way, during the process of adjusting the oil barrel from an inclined state to a horizontal state, the semi-circular frame 4 and the mounting rod 5 always remain relatively stationary, and the clamping assembly 7 can always stably clamp the oil barrel. After the forklift transports the oil barrel in the horizontal state to the predetermined position, the operator moves the insertion block 702 so that the insertion block 702 is separated from the annular protrusion at the bottom of the oil barrel, and releases the binding of the anti-disengagement assembly 6 on the oil barrel. Then, the operator drives the lifting platform 2 to rise, so that the support arm 3, the semi-circular frame 4, the mounting rod 5, the anti-disengagement assembly 6, the clamping assembly 7 and the motor 8 rise as a whole. Since the annular protrusion at the bottom of the oil barrel is separated from the first clamping block 701 and the second clamping block 704, the operator can push the second clamping block 704 to reset axially along the telescopic rod 703, and the arc-shaped block 19 also resets axially along the telescopic rod 703 and is separated from the positioning block 18. Then, the operator reverses the second clamping block 704, so that the telescopic rod 703 and the arc-shaped block 19 are reset around the telescopic rod 703, and the positioning block 18 will reset under the resilience of the elastic member 17 to; Figure 6 the state shown.

[0038] In summary, in this embodiment, during the process of the oil barrel from the vertical state to the inclined state, the mounting rod 5 and the anti-disengagement assembly 6 can slide relative to the semi-circular frame 4, so as to ensure that the arc-shaped plate 601 can stably push the oil barrel to the inclined state. When the oil barrel is in the inclined state, the operator pulls down the second clamping block 704 and then rotates the second clamping block 704, and the clamping of the oil barrel by the clamping assembly 7 and the relative locking of the semi-circular frame 4 and the mounting rod 5 can be realized, ensuring that the mounting rod 5, the anti-disengagement assembly 6 and the clamping assembly 7 are stationary relative to the oil barrel during the process of adjusting the oil barrel from the inclined state to the horizontal state, significantly improving the stability of transportation. The operator realizes two effects by controlling the second clamping block 704, improving the operation efficiency. Similarly, after transporting a single oil barrel, the operator only needs to reset the second clamping block 704 to release the relative locking between the semi-circular frame 4 and the mounting rod 5.

[0039] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. An oil barrel gripping mechanism, comprising a guide frame (1), on which a lifting platform (2) is slidably mounted in the vertical direction, characterized in that, On the lifting platform (2), two parallel support arms (3) are horizontally installed. A semi-circular frame (4) is rotatably installed between the two support arms (3). The rotation axis of the semi-circular frame (4) is horizontal and perpendicular to the support arms (3). An installation rod (5) is provided on the semi-circular frame (4). One end of the installation rod (5) is provided with an anti-detachment component (6), and the other end of the installation rod (5) is provided with a clamping component (7). A motor (8) for driving the rotation of the semi-circular frame (4) is installed on the support arm (3). A support rod (9) is installed at the bottom of the guide frame (1). A support block (10) is fixedly installed at the end of the support rod (9). A rubber layer is provided on the surface of the support block (10). A telescopic spring (14) sleeved on the support rod (9) is installed between the support block (10) and the guide frame (1). A vertical groove is formed on the support rod (9), and a plug rod (15) matched with the vertical groove is vertically and fixedly installed at the bottom of the lifting platform (2). The clamping component (7) includes a first clamping block (701) fixedly installed on the installation rod (5). A plug block (702) matched with the gap at the bottom of the oil barrel is slidably installed on the first clamping block (701). A telescopic rod (703) parallel to the installation rod (5) is movably installed on the installation rod (5). A second clamping block (704) is fixedly installed at one end of the telescopic rod (703). The telescopic rod (703) and the installation rod (5) are both round rods and their axes coincide. A retaining ring (16) matched with the semi-circular frame (4) is fixedly installed on the installation rod (5). A first receiving groove (401) is formed on the inner wall of the semi-circular frame (4). An elastic member (17) is installed in the first receiving groove (401). A second receiving groove (501) adapted to the first receiving groove (401) is formed on the installation rod (5). A positioning block (18) is slidably installed in the second receiving groove (501). A sector-shaped groove (502) is formed on the installation rod (5). An arc-shaped block (19) matched with the sector-shaped groove (502) is fixedly installed on the telescopic rod (703). The end face of the positioning block (18) facing the center of the installation rod (5) is hemispherical. The circumferential surface of the arc-shaped block (19) away from the center of the installation rod (5) is arc-shaped, and a positioning groove (1901) matched with the positioning block (18) is formed on the circumferential surface of the arc-shaped block (19) away from the center of the installation rod (5).

2. The oil barrel gripping mechanism according to claim 1, wherein, The installation rod (5) is perpendicular to the rotation axis of the semi-circular frame (4), and the installation rod (5) is slidably matched with the semi-circular frame (4) along its length direction. The support arm (3) is slidably matched with the lifting platform (2) along its length direction. A positioning hole is formed on the support arm (3), and a plug pin (11) adapted to the positioning hole is installed on the lifting platform (2).

3. The oil barrel gripping mechanism according to claim 2, characterized in that, An incomplete gear (12) is fixedly installed on the output shaft of the motor (8). A straight rack (13) matched with the incomplete gear (12) is horizontally and fixedly installed on the lifting platform (2).

4. The oil barrel gripping mechanism according to claim 3, characterized in that The anti-detachment component (6) includes an arc-shaped plate (601) fixedly installed on the installation rod (5). A limiting belt (602) is installed at one end of the arc-shaped plate (601). A socket (603) matched with the limiting belt (602) is formed at the other end of the arc-shaped plate (601).

5. A transfer forklift, characterized in that, including the oil barrel gripper mechanism according to any one of claims 1-4.

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