A printing roller handling trolley

Abstract

The application discloses a printing roller carrying trolley, which comprises a trolley frame, a placing rack and an adjusting mechanism. When the placing rack is in a feeding state, the carrying trolley keeps a warped plate in contact with the ground. The printing roller is turned to be vertical, and the lower end surface is attached to the warped plate; at this time, the weight of the printing roller only acts on the warped plate, and the carrying trolley keeps the warped plate in contact with the ground. The printing roller is pushed to be inclined, so that the roller surface of the printing roller is in contact with a placing surface, the lower end edge is abutted against the warped plate, the printing roller is kept to be inclined, the weight of the printing roller also acts on the placing rack through the contact between the printing roller and the placing surface, the carrying trolley swings around a directional guide wheel, and the carrying trolley is restored and kept to be in contact with the ground. The placing rack is switched from the feeding state to a transfer state, the roller surface of the printing roller is in contact with the placing surface, the lower end surface is attached to the warped plate, and the printing roller is kept stable. The carrying trolley is moved to transfer the printing roller. The printing roller is placed on the carrying trolley, and the operation is more convenient.

Description

Technical Field

[0001] This application relates to a transport trolley, and more particularly to a printing roller transport trolley. Background Technology

[0002] Printing rollers are typically transported using a trolley, which is convenient and saves labor. The frame of a printing roller transport trolley generally has: a set of directional guide wheels, a set of steering guide wheels, an inclined placement surface, and a rocker arm positioned perpendicular to the placement surface at a lower position.

[0003] Under normal circumstances, the directional guide wheel and the steering guide wheel are in contact with the ground. When in use: using the directional guide wheel as a fulcrum, manually flip the transport trolley and keep it in the position of the rocker arm in contact with the ground. At this time, the rocker arm is horizontal and the placement surface is vertical. Manually flip the printing roller to vertical position, with the lower end face against the rocker arm. Manually adjust the position of the printing roller so that the roller surface contacts the placement surface. Manually hold the printing roller while generally using the directional guide wheel as a fulcrum to restore the transport trolley to the position of the steering guide wheel in contact with the ground.

[0004] The existing printing roller transport trolley still has the following problems: after the transport trolley flips over and touches the ground as a rocker, it cannot maintain this state stably and needs to be held by hand. At the same time, the placement surface is vertical, and it is not convenient to adjust the roller surface when it is in contact with the placement surface. Utility Model Content

[0005] This application provides a printing roller transport trolley, incorporating a placement frame and an adjustment mechanism. The placement surface is positioned on the placement frame, and the upper part of the placement frame is slidably fixed to the trolley frame, while the lower part is slidably fixed to the rocker arm, thereby allowing adjustment of the angle between the placement surface and the rocker arm. Adjusting the angle between the placement surface and the rocker arm to an obtuse angle shifts the center of gravity of the transport trolley towards the rocker arm, ensuring the transport trolley can stably keep the rocker arm in contact with the ground. Simultaneously, the placement surface is inclined, facilitating easier contact between the roller surface and the placement surface.

[0006] This application provides a printing roller transport trolley, comprising: The frame has a set of support rods; a set of directional guide wheels at the lower end of the support rods; a rocker arm perpendicular to the support rods and for the printing roller end to contact; a handle at the upper end of the support rods; and a set of steering guide wheels below the handle. The placement rack has a placement surface for the printing roller to contact; the lower position can be slidably and fixedly connected to the rocker arm, and the upper position can be slidably and fixedly connected to the support rod. The adjustment mechanism is used to adjust the position of the placement rack, allowing the placement rack to switch between the following two positions: the transfer state that is attached to the support rod, and the loading / unloading state that is separated from the support rod; Among them, the directional guide wheel is the fulcrum: in the transfer state, the steering guide wheel can be kept in contact with the ground; in the loading and unloading state, the rocker can be kept in contact with the ground.

[0007] In some embodiments, the adjustment mechanism includes: a connecting block, a threaded rod, and an internally threaded cylinder; the connecting block is hinged to the frame; the threaded rod is rotatably connected to the connecting block; the internally threaded cylinder is hinged to the mounting frame and is also threadedly connected to the threaded rod.

[0008] In some embodiments, the frame is fixedly connected to an L-shaped rod between the support rod and the rocker arm; there is one steering guide wheel located on the L-shaped rod; and there are two directional guide wheels.

[0009] In some embodiments, the rocker is L-shaped and includes: a first plate and a second plate; the first plate is for the printing roller end to contact; the lower end of the support rod is located at the junction of the first plate and the second plate; the directional guide wheel is located on the side of the second plate away from the first plate.

[0010] In some embodiments, the placement rack is fixedly connected with multiple arc-shaped strips, and the concave arc surfaces of the multiple arc-shaped strips serve as placement surfaces.

[0011] In some embodiments, both the rocker and the placement surface are covered with a protective layer.

[0012] In summary, this application provides a printing roller transport trolley, including: a frame, a placement frame, and an adjustment mechanism. The placement frame is in the loading state, and the transport trolley keeps the rocker arm in contact with the ground. The printing roller is flipped to a vertical position, with its lower end face against the rocker arm. At this point, the weight of the printing roller acts only on the rocker arm, and the transport trolley keeps the rocker arm in contact with the ground. The printing roller is pushed to tilt, so that the roller surface contacts the placement surface, and the lower edge abuts against the rocker arm. The printing roller remains tilted, and simultaneously, through the contact between the printing roller and the placement surface, the weight of the printing roller also acts on the placement frame. The transport trolley swings around a guide wheel, returning to and maintaining the position where the guide wheel is in contact with the ground. The placement frame switches from the loading state to the transfer state, with the printing roller surface contacting the placement surface and the lower end face against the rocker arm, keeping the printing roller stable. The transport trolley is moved to transfer the printing roller. The beneficial effect is that it makes the operation of placing the printing roller onto the transport trolley more convenient. Attached Figure Description

[0013] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0014] Figure 1 This is a schematic diagram of the present application; Figure 2 This is a top view of this application; Figure 3 This is a side view of this application; Figure 4 This is a schematic diagram showing the placement of the printing roller according to this application.

[0015] In the picture, 1. Frame; 1A. Support rod; 1A1. Connecting plate; 1B. Guide wheel; 1C. Rocker; 1C1. First plate; 1C2. Second plate; 1D. Handlebar; 1E. Steering wheel; 1F. L-shaped rod; 2. Placement frame; 2A. Placement surface; 2B. Connecting rod; 2B1. First slider; 2B2. Second slider; 2C. Arc-shaped strip; 2D. Counterweight; 3. Adjustment mechanism; 31. Connecting block; 32. Threaded rod; 33. Internal threaded cylinder. Specific Implementation

[0016] The following description is provided in conjunction with the accompanying drawings, which are for illustrative purposes only and not strictly to scale. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the embodiments in this application can be combined with each other.

[0017] Please see Figure 1 A printing roller transport trolley includes: a frame 1, a placement frame 2, and an adjustment mechanism 3.

[0018] The frame 1 has a set of support rods 1A, more specifically, there can be two support rods 1A. The support rods 1A are inclined: the frame 1 has a set of directional guide wheels 1B and a rocker 1C at the lower end of the support rods 1A, the rocker 1C is perpendicular to the support rods 1A, and the rocker 1C is used for contact of the printing roller end; the frame 1 has a handle 1D at the upper end of the support rods 1A; the frame 1 has a set of steering guide wheels 1E below the handle 1D.

[0019] Please see Figure 1 and Figure 2The placement frame 2 has a placement surface 2A for contact between the printing roller surface and the surface. The lower part of the placement frame 2 is slidably and fixedly connected to the rocker arm 1C, and the upper part is slidably and fixedly connected to the support rod 1A. More specifically, the placement frame 2 may have two connecting rods 2B, with the lower end of the connecting rod 2B hinged to a first slider 2B1 and the upper end hinged to a second slider 2B2. Two linear guides may be fixed on the rocker arm 1C, and the two first sliders 2B1 are slidably connected to the two linear guides respectively. The two first sliders 2B1 are slidably connected to the two support rods 1A respectively. Correspondingly, the two first sliders 2B1 can also be connected to form a single slider. The first slider 2B1 may be designed with an Ω-shaped groove, allowing it to be radially engaged with the support rod 1A. After being engaged with the support rod 1A, the first slider 2B1 can slide along the support rod 1A.

[0020] Please see Figure 1 and Figure 3 In some embodiments, the rocker arm 1C is L-shaped and includes a first plate 1C1 and a second plate 1C2. The first plate 1C1 is for contact with the end of the printing roller. The lower end of the support rod 1A is located at the junction of the first plate 1C1 and the second plate 1C2. The support rod 1A and the rocker arm 1C can be welded together, that is, the support rod 1A is welded to both the first plate 1C1 and the second plate 1C2. The directional guide wheel 1B is located on the side of the second plate 1C2 away from the first plate 1C1.

[0021] On the one hand, the connection between the support rod 1A and the rocker 1C is relatively stable; on the other hand, it is relatively convenient to design the position and diameter of the directional guide wheel 1B, and to swing the frame 1 with the directional guide wheel 1B as the fulcrum, so that the bottom surface of the subsequent rocker 1C can touch the ground.

[0022] Please see Figure 3 In some embodiments, an L-shaped rod 1F is fixedly connected between the support rod 1A and the rocker 1C. More specifically, a connecting plate 1A1 can be fixedly connected between the two support rods 1A, with one end of the L-shaped rod 1F fixedly connected to the connecting plate 1A1 and the other end fixedly connected to the rocker 1C. There is one steering guide wheel 1E, located on the L-shaped rod 1F; there are two directional guide wheels 1B.

[0023] The transport trolley is a three-wheeled vehicle. The L-shaped rod 1F forms a triangular structure to stabilize the frame 1, and the three-wheeled design makes it easy to turn the transport trolley.

[0024] By sliding the placement frame 2 on the support rod 1A and on the rocker arm 1C, the angle between the placement frame 2 and the rocker arm 1C can be adjusted. Correspondingly, after adjustment, the placement frame 2 is still fixed relative to the frame 1, and a corresponding locking structure is required to re-limit the sliding of the placement frame 2 on the support rod 1A and on the rocker arm 1C.

[0025] Please see Figure 1 The adjustment mechanism 3 is used to adjust the position of the placement rack 2, that is, to adjust the angle between the placement rack 2 and the rocker 1C, so that the placement rack 2 can switch between the following two positions: the transfer state that is attached to the support rod 1A, and the loading state that is separated from the support rod 1A.

[0026] Please see Figure 3 In some embodiments, the adjusting mechanism 3 is a telescopic rod, including: a connecting block 31, a threaded rod 32, and an internal threaded cylinder 33.

[0027] Connecting block 31 is hinged to frame 1. Threaded rod 32 is rotatably connected to connecting block 31. More specifically, threaded rod 32 and connecting block 31 can be connected by a retaining ring or bearing. Frame 1 may have a through slot for threaded rod 32 to pass through, and a handwheel can be installed at the end of threaded rod 32 that passes through. Internal threaded cylinder 33 is hinged to mounting bracket 2 and is also threadedly connected to threaded rod 32.

[0028] Manually rotate the threaded rod 32 to adjust the length of the threaded rod 32 and the internal threaded cylinder 33, thereby driving the placement frame 2 to move and adjusting the angle between the placement frame 2 and the rocker plate 1C. Stop rotating the threaded rod 32. The threaded connection between the threaded rod 32 and the internal threaded cylinder 33 plays the role of the aforementioned locking structure.

[0029] Please see Figure 3 and Figure 4 When the trolley is not holding the printing roller, the directional guide wheel 1B is used as the fulcrum: When the placement rack 2 is in the transfer state, the transport trolley can keep the steering guide wheel 1E in contact with the ground. At this time, the rocker 1C is tilted, and the angle between the placement rack 2 and the rocker 1C is 90 degrees.

[0030] When the placement rack 2 is in the loading state, the transport trolley can keep the rocker 1C in contact with the ground. At this time, the rocker 1C is horizontal and the bottom surface of the rocker 1C is in contact with and attached to the ground. The angle between the placement rack 2 and the rocker 1C is an obtuse angle.

[0031] When the placement rack 2 is in the transfer state, the center of gravity of the transport trolley is on the side of the directional guide wheel 1B towards the steering guide wheel 1E. When the placement rack 2 switches from the transfer state to the loading state, the center of gravity of the transport trolley is on the side of the directional guide wheel 1B towards the rocker arm 1C. More specifically, a counterweight 2D can be fixedly connected to a lower position of the placement rack 2.

[0032] The process of the transport trolley transporting the printing roller: S1. Set the placement rack 2 to the loading state, and keep the transport trolley in contact with the ground on the rocker 1C; S2. Flip the printing roller to a vertical position, with its lower end face in contact with the rocker plate 1C. At this time, the weight of the printing roller is only applied to the rocker plate 1C. The transport trolley keeps the rocker plate 1C in contact with the ground. S3. Push the printing roller to tilt so that the roller surface of the printing roller contacts the placement surface 2A and the lower edge abuts against the rocker plate 1C. The printing roller remains tilted. At the same time, through the contact between the printing roller and the placement surface 2A, the weight of the printing roller is also applied to the placement frame 2. The transport trolley swings around the guide wheel 1B and returns to and maintains the steering guide wheel 1E touching the ground. S4. The placement rack 2 switches from the feeding state to the transfer state, the printing roller surface contacts the placement surface 2A, and the lower end surface is attached to the rocker plate 1C to keep the printing roller stable. S5. The moving transport trolley transfers the printing rollers.

[0033] Please see Figure 1 and Figure 2 In some embodiments, the placement rack 2 is fixedly connected with multiple arc-shaped strips 2C, and the concave arc surface of the multiple arc-shaped strips 2C is the placement surface 2A.

[0034] Under the influence of gravity, the printing roller contacts the lowest point of the roller surface and the concave arc surface. Combined with the friction between the lower end face of the printing roller and the rocker plate 1C, the printing roller is less likely to roll around the axis during the transfer process.

[0035] In some embodiments, both the rocker 1C and the placement surface 2A are covered with a protective layer.

[0036] For example, the protective layer could be a rubber pad. The protective layer protects the outer surface of the printing roller.

Claims

1. A printing roller transport trolley, characterized in that, include: The frame (1) has a set of support rods (1A); a set of directional guide wheels (1B) and a rocker (1C) perpendicular to the support rods (1A) and for contact with the end of the printing roller are located at the lower end of the support rods (1A); a handle (1D) is located at the upper end of the support rods (1A); and a set of steering guide wheels (1E) is located below the handle (1D). The placement rack (2) has a placement surface (2A) for the printing roller to contact; it can be slidably and fixedly connected to the rocker (1C) at the lower position and slidably and fixedly connected to the support rod (1A) at the upper position; Adjustment mechanism (3) is used to adjust the position of the placement rack (2) so that the placement rack (2) can switch between the following two positions: the transfer state that is attached to the support rod (1A) and the loading and unloading state that is separated from the support rod (1A); Among them, the directional guide wheel (1B) is the fulcrum: in the transfer state, the steering guide wheel (1E) can be kept in contact with the ground; in the loading and unloading state, the rocker (1C) can be kept in contact with the ground.

2. The printing roller transport trolley according to claim 1, characterized in that, The adjustment mechanism (3) includes: a connecting block (31), a threaded rod (32), and an internal threaded cylinder (33); the connecting block (31) is hinged to the frame (1); the threaded rod (32) is rotatably connected to the connecting block (31); the internal threaded cylinder (33) is hinged to the placement frame (2) and is also threadedly connected to the threaded rod (32).

3. The printing roller transport trolley according to claim 1, characterized in that, The frame (1) is fixedly connected to an L-shaped rod (1F) between the support rod (1A) and the rocker (1C); there is one steering guide wheel (1E) located on the L-shaped rod (1F); there are two directional guide wheels (1B).

4. A printing roller transport trolley according to claim 1, characterized in that, The rocker (1C) is L-shaped and includes: a first plate (1C1) and a second plate (1C2); the first plate (1C1) is for the end of the printing roller to contact; the lower end of the support rod (1A) is located at the junction of the first plate (1C1) and the second plate (1C2); the guide wheel (1B) is located on the side of the second plate (1C2) away from the first plate (1C1).

5. A printing roller transport trolley according to claim 1, characterized in that, The placement rack (2) is fixedly connected with multiple arc-shaped strips (2C), and the concave arc surface of the multiple arc-shaped strips (2C) is the placement surface (2A).

6. A printing roller transport trolley according to claim 1, characterized in that, Both the rocker (1C) and the placement surface (2A) are covered with a protective layer.

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