Electric lifting device

Abstract

An electric lifting device comprises a box body, supports are fixedly connected to the front side and the rear side of the outer wall of the upper side of the box body respectively, a fixing plate is fixedly connected between the outer walls of the upper sides of the two supports, two symmetrically-distributed vertical plates are fixedly connected to the upper side wall of the fixing plate, a winding roller is arranged between the two vertical plates, and a traction rope is arranged on the winding roller. Compared with the prior art, the anti-falling device has the advantages that through the arrangement of the plate body, the extension plate, the guide rod, the follow-up block, the spring, the fixing rod, the anti-falling block and the connecting rod, the anti-falling device has the anti-falling function, the containing box can be blocked when falling occurs, the containing box is prevented from directly falling, and danger is avoided; through the arrangement of a bidirectional screw rod, a movable plate, a movable block, a hinge rod, universal wheels, a driving motor, a chain wheel and a chain, the universal wheels can stretch out to move when the device needs to move, and the universal wheels can retract into the box body when materials are lifted, so that the box body touches the ground and is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to an electric lifting device. Background Art

[0002] Electric lifting device is a kind of mechanical equipment that uses electric energy as power to lift or load and unload. It has the advantages of easy movement, easy to use, simple operation, large working surface, wide range, good balance performance, etc. It is widely used and often used in various production industries to lift materials.

[0003] However, the current electric lifting devices do not have an anti-fall function, which is quite dangerous. In addition, in order to facilitate movement, universal wheels are installed. However, the universal wheels are in point contact with the ground, and are prone to movement when lifting materials, which is not stable enough. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides an electric lifting device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is an electric lifting device, including a box body, and brackets are fixedly connected to the front and rear sides of the upper outer wall of the box body respectively, a fixing plate is fixedly connected between the upper outer walls of the two brackets, and two symmetrically distributed vertical plates are fixedly connected to the upper side walls of the fixing plate, a winding roller is provided between the two vertical plates, a traction rope is provided on the winding roller, one end of the traction rope passes through the fixing plate and is suspended with a accommodating box, a traction motor is installed on the side wall of one of the vertical plates away from the winding roller, the output shaft end of the traction motor passes through the vertical plate and is fixedly connected to one end of the winding roller, an anti-fall mechanism is provided on the bracket, and a moving mechanism is provided in the box body.

[0006] As an improvement: the anti-fall mechanism includes a plate body, an extension plate, a guide rod, a follower block, a spring, a fixed rod, an anti-fall block and a connecting rod. Two groups of symmetrically distributed extension plates are fixedly connected to a side wall of the plate body close to the containing box, and the number of extension plates in each group is two and they are distributed up and down. A guide rod is fixedly connected between the two extension plates, a follower block is slidingly sleeved on the guide rod, the follower block is fixedly connected to the containing box, a spring is provided between the follower block and the extension plate located above, the spring sleeve is arranged on the outside of the guide rod, a fixed rod is fixedly connected between the inner walls on both sides of the plate body, and two symmetrically distributed anti-fall blocks are slidingly sleeved on the fixed rod, one end of the anti-fall block is rotatably connected to the follower block, and a connecting rod is fixedly connected between the other ends of the two anti-fall blocks.

[0007] As an improvement: the moving mechanism includes a bidirectional screw, a movable plate, a moving block, a hinged rod, a universal wheel, a driving motor, a sprocket and a chain. Two bidirectional screws are rotatably provided between the front and rear inner walls of the box body and a movable plate is provided below the bidirectional screws. Two moving blocks are threadedly sleeved on the bidirectional screws. A hinged rod is hinged between the moving block and the upper side wall of the movable plate. Universal wheels are installed at the four corners of the lower side wall of the movable plate. A driving motor is installed on the front outer wall of the box body. The output shaft end of the driving motor extends into the box body and is fixedly connected to one end of one of the bidirectional screws. One end of the two bidirectional screws is fixedly sleeved with a sprocket, and a chain is provided between the two sprockets.

[0008] As an improvement: a plurality of blocking blocks cooperating with the anti-falling blocks are fixedly connected between the inner walls on both sides of the bracket.

[0009] As an improvement: two groups of symmetrically distributed guide wheels are installed on one side wall of the plate body away from the containing box, each group of guide wheels has two guide wheels and are distributed up and down, and two guide rails compatible with the guide wheels are fixedly connected to one side wall of the bracket close to the containing box.

[0010] As an improvement: a protection box is fixedly connected to the front outer wall of the box body, and a battery is arranged in the protection box.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The plate body, extension plate, guide rod, follower block, spring, fixed rod, anti-fall block and connecting rod are provided, so that the device has an anti-fall function, which can block the storage box when it falls, and avoid the danger of the storage box falling directly. The bidirectional screw, movable plate, moving block, hinged rod, universal wheel, drive motor, sprocket and chain are provided, so that the device can extend the universal wheel to move when it needs to move, and when lifting materials, the universal wheel can be retracted into the box body, so that the box body touches the ground and is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an electric lifting device of the utility model;

[0014] Figure 2 This is a schematic diagram of the anti-falling mechanism structure of an electric lifting device of the utility model;

[0015] Figure 3 This is a schematic diagram of the anti-falling block structure of an electric lifting device of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a moving mechanism of an electric lifting device of the utility model;

[0017] As shown in the figure:

[0018] 1. Box body; 1.1. Bracket; 1.2. Fixed plate; 1.3. Vertical plate; 1.4. Winding roller; 1.5. Traction rope; 1.7. Accommodation box; 1.6. Traction motor; 2. Anti-fall mechanism; 3. Moving mechanism; 2.1. Plate body; 2.2. Extension plate; 2.3. Guide rod; 2.4. Follow-up block; 2.5. Spring; 2.6. Fixed rod; 2.7. Anti-fall block; 2.8. Connecting rod; 3.1. Bidirectional screw; 3.2. Movable plate; 3.3. Moving block; 3.4. Articulated rod; 3.5. Universal wheel; 3.6. Driving motor; 3.7. Sprocket; 3.8. Chain; 1.11. Blocking block; 2.11. Guide wheel; 1.12. Guide rail; 4. Protective box. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features and purpose effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both sides", "one side", "the other side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1As shown, an electric lifting device comprises a box body 1, and brackets 1.1 are fixedly connected to the front and rear sides of the upper outer wall of the box body 1, respectively, a fixing plate 1.2 is fixedly connected between the upper outer walls of the two brackets 1.1, and two symmetrically distributed vertical plates 1.3 are fixedly connected to the upper side wall of the fixing plate 1.2, a winding roller 1.4 is arranged between the two vertical plates 1.3, and a traction rope 1.5 is arranged on the winding roller 1.4, one end of the traction rope 1.5 passes through the fixing plate 1.2 and is suspended with a receiving box 1.7, and one of the vertical plates 1.3 is away from A traction motor 1.6 is installed on one side wall of the winding roller 1.4. The output shaft end of the traction motor 1.6 passes through the vertical plate 1.3 and is fixedly connected to one end of the winding roller 1.4. After the material is placed in the containing box 1.7, the output shaft of the traction motor 1.6 can drive the winding roller 1.4 to rotate. When the winding roller 1.4 rotates, the traction rope 1.5 can be wound around the winding roller 1.4, so that one end of the traction rope 1.5 can pull the containing box 1.7 to rise. An anti-fall mechanism 2 is provided on the bracket 1.1, and a moving mechanism 3 is provided in the box body 1.

[0023] Specifically, Figure 2 and Figure 3 As shown, an electric lifting device, the anti-falling mechanism 2 includes a plate body 2.1, an extension plate 2.2, a guide rod 2.3, a follower block 2.4, a spring 2.5, a fixed rod 2.6, an anti-falling block 2.7 and a connecting rod 2.8. Two groups of symmetrically distributed extension plates 2.2 are fixedly connected to a side wall of the plate body 2.1 close to the accommodating box 1.7. The number of each group of extension plates 2.2 is two and they are distributed up and down. A guide rod 2.3 is fixedly connected between the two extension plates 2.2. A follower block 2.4 is slidably sleeved on the guide rod 2.3. The follower block 2.4 is fixedly connected to the accommodating box 1.7. A spring 2.5 is arranged between the follower block 2.4 and the extension plate 2.2 located above. The spring 2.5 is sleeved on the outside of the guide rod 2.3. A fixed rod 2.6 is fixedly connected between the inner walls on both sides of the plate body 2.1. The fixed rod 2.6 is slidably sleeved with two symmetrically distributed The anti-fall block 2.7 of the cloth, one end of the anti-fall block 2.7 is rotatably connected with the following block 2.4, and the other ends of the two anti-fall blocks 2.7 are fixedly connected with a connecting rod 2.8. When the accommodating box 1.7 rises, the following block 2.4 rises along the guide rod 2.3 and compresses the spring 2.5. When the following block 2.4 rises, it will pull the anti-fall block 2.7. Under the action of the fixed rod 2.6, the anti-fall block 2.7 tends to be vertical and will not contact the blocking block 1.11. Once falling occurs, the accommodating box 1.7 moves downward, and the spring 2.5 pushes the following block 2.4 to move downward together with the accommodating box 1.7. Under the action of the fixed rod 2.6, as the following block 2.4 moves downward, the anti-fall block 2.7 will be horizontal. At this time, the blocking block 1.11 will block the falling anti-fall block 2.7, so that it can drive the accommodating box 1.7 to stop falling when falling, which is safer.

[0024] Specifically, Figure 4 As shown, an electric lifting device, the moving mechanism 3 includes a bidirectional screw 3.1, a movable plate 3.2, a moving block 3.3, a hinge rod 3.4, a universal wheel 3.5, a driving motor 3.6, a sprocket 3.7 and a chain 3.8, two bidirectional screws 3.1 are rotatably arranged between the front and rear inner walls of the box body 1, and a movable plate 3.2 is arranged below the bidirectional screw 3.1, two moving blocks 3.3 are threadedly sleeved on the bidirectional screw 3.1, a hinge rod 3.4 is hinged between the moving block 3.3 and the upper side wall of the movable plate 3.2, universal wheels 3.5 are installed at the four corners of the lower side wall of the movable plate 3.2, a driving motor 3.6 is installed on the front outer wall of the box body 1, the output shaft end of the driving motor 3.6 extends into the box body 1 and is fixedly connected to one end of one of the bidirectional screws 3.1, one end of the two bidirectional screws 3.1 is fixedly sleeved with a sprocket 3.7, and the two sprockets 3 .7 is provided with a chain 3.8. When movement is required, the output shaft of the driving motor 3.6 can drive one of the two-way screws 3.1 to rotate. When the two-way screw 3.1 rotates, it will drive the sprocket 3.7 fixedly connected to it to rotate. Under the transmission of the chain 3.8, the other sprocket 3.7 drives the other two-way screw 3.1 to rotate. When the two-way screw 3.1 rotates, the two moving blocks 3.3 can be brought closer to each other, and the hinged rod 3.4 will push the movable plate 3.2 to move downward, and the universal wheel 3.5 will touch the ground and prop up the box body 1, and it can be moved. After moving to the destination, the driving motor 3.6 is reversed. After transmission, the two moving blocks 3.3 on the two-way screw 3.1 will move away from each other. Under the pulling of the hinged rod 3.4, the movable plate 3.2 drives the universal wheel 3.5 to rise, so that the bottom wall of the box body 1 touches the ground, forming a stable support, and avoiding deviation when lifting materials.

[0025] Specifically, Figure 2 As shown, an electric lifting device, a plurality of blocking blocks 1.11 cooperating with the anti-falling blocks 2.7 are fixedly connected between the inner walls of both sides of the bracket 1.1, and when falling occurs, the blocking blocks 1.11 can block the anti-falling blocks 2.7.

[0026] Specifically, Figure 2 and Figure 3 As shown, an electric lifting device is provided, two groups of symmetrically distributed guide wheels 2.11 are installed on a side wall of a plate body 2.1 away from a containing box 1.7, each group of guide wheels 2.11 has two guide wheels 2.11 and are distributed up and down, and two guide rails 1.12 matched with the guide wheels 2.11 are fixedly connected to a side wall of a bracket 1.1 close to the containing box 1.7. When the containing box 1.7 rises, the guide wheels 2.11 will rise along the guide rails 1.12, so that the movement of the plate body 2.1 is more stable.

[0027] Specifically, Figure 1As shown, an electric lifting device has a protection box 4 fixedly connected to the front outer wall of the box body 1, and a battery is arranged in the protection box 4 to provide power for the traction motor 1.6 and the drive motor 3.6.

[0028] When the utility model is implemented, when it is necessary to move, the output shaft of the driving motor 3.6 can drive one of the two-way screws 3.1 to rotate, and when the two-way screw 3.1 rotates, it will drive the sprocket 3.7 fixedly connected to it to rotate. Under the transmission of the chain 3.8, the other sprocket 3.7 drives the other two-way screw 3.1 to rotate. When the two-way screw 3.1 rotates, the two moving blocks 3.3 can be brought closer to each other, and the hinged rod 3.4 can push the movable plate 3.2 to move downward, and the universal wheel 3.5 can touch the ground and prop up the box body 1, and then it can be moved. After moving to the destination, the driving motor 3.6 is reversed. After transmission, the two moving blocks 3.3 on the two-way screw 3.1 will move away from each other. Under the pulling of the hinged rod 3.4, the movable plate 3.2 drives the universal wheel 3.5 to rise, so that the bottom wall of the box body 1 touches the ground, forming a stable support, avoiding deviation when lifting materials, and then loading the materials into the containing box 1.7, and starting the traction. The output shaft of the traction motor 1.6 can drive the winding roller 1.4 to rotate. When the winding roller 1.4 rotates, the traction rope 1.5 can be wound around the winding roller 1.4, so that one end of the traction rope 1.5 can pull the receiving box 1.7 to rise. When the receiving box 1.7 rises, the follower block 2.4 rises along the guide rod 2.3 and compresses the spring 2.5. When the follower block 2.4 rises, it will pull the anti-fall block 2.7. Under the action of the fixed rod 2.6, the anti-fall block 2.7 tends to be vertical and will not contact the blocking block 1.11. Once a fall occurs, the containing box 1.7 moves downward, and the spring 2.5 pushes the following block 2.4 to move downward together with the containing box 1.7. Under the action of the fixing rod 2.6, as the following block 2.4 moves downward, the anti-falling block 2.7 will become horizontal. At this time, the blocking block 1.11 will block the falling anti-falling block 2.7, so that it can drive the containing box 1.7 to stop falling when falling, which is safer.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric lifting device, comprising a box (1), characterized in that: Brackets (1.1) are fixedly connected to the front and rear sides of the upper outer wall of the box body (1), a fixed plate (1.2) is fixedly connected between the upper outer walls of the two brackets (1.1), two symmetrically distributed vertical plates (1.3) are fixedly connected to the upper side wall of the fixed plate (1.2), a winding roller (1.4) is provided between the two vertical plates (1.3), a traction rope (1.5) is provided on the winding roller (1.4), one end of the traction rope (1.5) passes through the fixed plate (1.2) and is suspended with a containing box (1.7), a traction motor (1.6) is installed on a side wall of one of the vertical plates (1.3) away from the winding roller (1.4), the output shaft end of the traction motor (1.6) passes through the vertical plate (1.3) and is fixedly connected to one end of the winding roller (1.4), an anti-falling mechanism (2) is provided on the bracket (1.1), and a moving mechanism (3) is provided in the box body (1).

2. An electric lifting device according to claim 1, characterized in that: The anti-fall mechanism (2) comprises a plate body (2.1), an extension plate (2.2), a guide rod (2.3), a follower block (2.4), a spring (2.5), a fixing rod (2.6), an anti-fall block (2.7) and a connecting rod (2.8); two groups of symmetrically distributed extension plates (2.2) are fixedly connected to a side wall of the plate body (2.1) close to the containing box (1.7); the number of the extension plates (2.2) in each group is two and they are distributed up and down; a guide rod (2.3) is fixedly connected between the two extension plates (2.2); a follower block (2.4) is slidably sleeved on the guide rod (2.3); The follower block (2.4) is fixedly connected to the containing box (1.7); a spring (2.5) is provided between the follower block (2.4) and the extension plate (2.2) located above; the spring (2.5) is sleeved on the outside of the guide rod (2.3); a fixing rod (2.6) is fixedly connected between the inner walls on both sides of the plate body (2.1); two symmetrically distributed anti-falling blocks (2.7) are slidably sleeved on the fixing rod (2.6); one end of the anti-falling block (2.7) is rotatably connected to the follower block (2.4); and a connecting rod (2.8) is fixedly connected between the other ends of the two anti-falling blocks (2.7).

3. The electric lifting device according to claim 1, characterized in that: The moving mechanism (3) comprises a bidirectional screw (3.1), a movable plate (3.2), a moving block (3.3), a hinge rod (3.4), a universal wheel (3.5), a driving motor (3.6), a sprocket (3.7) and a chain (3.8); two bidirectional screws (3.1) are rotatably arranged between the front and rear inner walls of the box body (1); a movable plate (3.2) is arranged below the bidirectional screws (3.1); two moving blocks (3.3) are threadedly sleeved on the bidirectional screws (3.1); the moving blocks (3.3) and the movable plate A hinge rod (3.4) is hinged between the upper side walls of the movable plate (3.2), universal wheels (3.5) are installed at the four corners of the lower side wall of the movable plate (3.2), a driving motor (3.6) is installed on the front outer wall of the box body (1), the output shaft end of the driving motor (3.6) extends into the box body (1) and is fixedly connected to one end of one of the bidirectional screw rods (3.1), one end of the two bidirectional screw rods (3.1) are fixedly sleeved with sprockets (3.7), and a chain (3.8) is provided between the two sprockets (3.7).

4. The electric lifting device according to claim 2, characterized in that: A plurality of blocking blocks (1.11) matching with the anti-falling blocks (2.7) are fixedly connected between the inner walls on both sides of the bracket (1.1).

5. The electric lifting device according to claim 2, characterized in that: Two groups of symmetrically distributed guide wheels (2.11) are installed on a side wall of the plate body (2.1) away from the containing box (1.7), each group of guide wheels (2.11) has two guide wheels (2.11) distributed up and down, and two guide rails (1.12) matched with the guide wheels (2.11) are fixedly connected to a side wall of the bracket (1.1) close to the containing box (1.7).

6. The electric lifting device according to claim 1, characterized in that: A protection box (4) is fixedly connected to the front outer wall of the box body (1), and a storage battery is arranged in the protection box (4).

Images