Locking and positioning device of transfer cart

Abstract

The utility model relates to a locking and positioning device of a transfer cart, which comprises a main frame, the main frame is a transverse rectangular frame, the left end and the right end of the top edge of the main frame are respectively provided with an arc-shaped side rod, and the two arc-shaped side rods are symmetrically arranged; the left end and the right end of the bottom edge of the main frame are each provided with a guide bottom plate, and the left guide bottom plate and the right guide bottom plate are symmetrically arranged. The guide bottom plate is arranged below the arc-shaped side rods, the bottom ends of the supporting rods are fixed to the guide bottom plate, and limiting folded edges are arranged on the opposite inner side edges of the guide bottom plate; a rear panel is arranged in the rectangular frame of the main frame, a locking air cylinder is arranged in the middle of the rear panel, and the output end of the locking air cylinder is connected with a locking pressing plate. Sensor fixing plates are arranged on the left side and the right side of the locking air cylinder, and sensors are arranged on the sensor fixing plates. The locking device is simple in structure and convenient to operate, the transfer trolley can be quickly and automatically locked and positioned, operation efficiency is improved, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship elevators, in particular to a locking and positioning device for a transfer cart. Background Art

[0002] Currently, human-powered transfer vehicles, used for transporting goods, construction materials, and other materials, are still active in various industries requiring transport. The wheels on these transfer vehicles typically feature universal casters to facilitate steering and forward movement. However, due to the large mass and volume of the transported objects, the wheels can easily slip due to inertia during transport, causing the vehicle to shift position. Conventional wheel positioning typically uses simple pedal locks, but these are ineffective for universal wheel locking. Furthermore, when the transported objects are large and heavy, they are more susceptible to slippage, potentially leading to tipping and creating safety hazards. This also reduces operational efficiency and increases costs. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a locking and positioning device for a transfer cart, so as to realize rapid locking and positioning of the transfer cart, thereby improving safety and working efficiency.

[0004] The purpose of this utility model is achieved in this way:

[0005] A locking and positioning device for a transfer cart comprises a main frame, the main frame being a horizontally placed rectangular frame, with an arc-shaped side rod provided at each of the left and right ends of the top edge, the arc tangent of the left arc-shaped side rod being inclined toward the lower left, and the arc tangent of the right arc-shaped side rod being inclined toward the lower right, the two arc-shaped side rods being arranged symmetrically; support rods are provided below the outer ends of the arc-shaped side rods, and the support rods are arranged parallel to the main frame;

[0006] A guide base plate is provided at the left and right ends of the bottom edge of the main frame, and the left and right guide base plates are symmetrically arranged; the guide base plates are arranged below the arc-shaped side rods, the bottom ends of the support rods are fixed to the guide base plates, and the opposite inner sides of the guide base plates are provided with limit folding edges;

[0007] A rear panel is set in the rectangular frame of the main frame as a sealing plate, and a through hole is provided in the middle of the rear panel. A locking cylinder is set in the through hole, and the output end of the locking cylinder is connected to a locking pressure plate; sensor fixing plates are set on the left and right sides of the locking cylinder, and sensors are set on the sensor fixing plates.

[0008] Furthermore, the guide base plate includes an upper square area, a middle trapezoidal area and a lower square area, and the width of the upper square area is smaller than that of the lower square area.

[0009] Furthermore, the limiting fold includes a first fold, a second fold and a third fold. The first fold is vertically arranged at the edge of the upper square area of the guide base plate, the second fold is vertically arranged at the edge of the middle trapezoidal area of the guide base plate, and the third fold is arranged parallel to the main frame. The third fold serves as a baffle, the second fold serves as a guide plate, and the first fold serves as a fastening plate.

[0010] Furthermore, a guide pulley is provided on the inner side wall of the arcuate side rod, and the guide pulley is arranged on the inner side wall of the arcuate side rod away from the main frame; two grooves are provided on the inner side wall of the arcuate side rod, and a guide pulley is hinged in each groove for guiding the wheels of the running vehicle.

[0011] Furthermore, a friction copper plate is provided on the inner side wall of the arc-shaped side rod, and the friction copper plate is arranged on the inner side wall of the arc-shaped side rod close to the main frame.

[0012] Furthermore, two left and right buffer pads are provided on the top edge of the main frame, and the buffer pads are arranged on one side of the arc-shaped side rods to buffer the thrust of the transfer vehicle.

[0013] Furthermore, a rear support member is respectively provided on the back side of the left and right sides of the main frame.

[0014] Furthermore, the rear support member includes a connecting plate, a triangular plate and a bottom plate, the connecting plate is fixed on the side of the main frame, the bottom plate and the connecting plate are arranged vertically, one right-angled side of the triangular plate is connected to the connecting plate, and the other right-angled side is connected to the bottom plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a locking and positioning device for a transfer cart with a simple structure and convenient operation. It can realize fast and automatic locking and positioning of the transfer cart, prepare for the next process, improve work efficiency, save time and effort; at the same time, it can avoid the risk of the transferred objects falling after loosening, further increase safety performance, and reduce the cost of damage caused by falling goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural diagrams of the present utility model.

[0018] Figure 2 This is the second structural diagram of the present utility model.

[0019] Figure 3 This is the third structural diagram of the present utility model.

[0020] in:

[0021] Main frame 1, arc-shaped side rod 2, guide pulley 21, friction copper plate 22, support rod 3, rear panel 4, guide bottom plate 5, limit folding edge 51, locking cylinder 6, locking pressure plate 61, sensor fixing plate 7, buffer pad 8, rear support 9. DETAILED DESCRIPTION

[0022] To better understand the technical solution of the present invention, the following detailed description is provided with reference to the relevant illustrations. It should be understood that the following specific embodiments are not intended to limit the specific implementation of the technical solution of the present invention; they are merely examples of possible implementations of the technical solution of the present invention. It should be noted that the description herein of the positional relationships of the various components, such as component A being located above component B, is based on the relative positions of the components in the illustrations and is not intended to limit the actual positional relationships of the components. Example 1

[0023] See also Figure 1-Figure 3 , Figure 1 A schematic structural diagram of the present invention is provided. As shown in the figure, the present invention relates to a locking and positioning device for a transfer cart, comprising a main frame 1, which is a horizontally arranged rectangular frame. An arc-shaped side bar 2 is provided at each of its top and left ends. The arc tangent of the left arc-shaped side bar 2 is tilted toward the lower left, while the arc tangent of the right arc-shaped side bar 2 is tilted toward the lower right. The two arc-shaped side bars 2 are symmetrically arranged. Support rods 3 are provided below the outer ends of the arc-shaped side bars 2 for support. The support rods 3 are arranged parallel to the main frame 1, i.e., one end of the arc-shaped side bar 2 is connected to the main frame 1, and the other end is connected to the support rod 3.

[0024] A guide base plate 5 is provided at the left and right ends of the bottom side of the main frame 1, and the left and right guide base plates 5 are symmetrically arranged; the guide base plates 5 are arranged below the arc-shaped side rods 2, and the bottom ends of the support rods 3 are fixed to the guide base plates 5;

[0025] The guide base plate 5 includes an upper square area, a middle trapezoidal area and a lower square area. The width of the upper square area is smaller than that of the lower square area. A limiting fold 51 is provided on the relative inner sides of the guide base plate 5. The limiting fold 51 includes a first fold, a second fold and a third fold. The first fold is vertically arranged at the edge of the upper square area of the guide base plate 5, the second fold is vertically arranged at the edge of the middle trapezoidal area of the guide base plate 5, and the third fold is arranged parallel to the main frame 1. The third fold serves as a baffle, the second fold serves as a guide plate, and the first fold serves as a fastening plate.

[0026] A rear panel 4 is provided in the rectangular frame of the main frame 1 as a sealing plate. A through hole is provided in the middle of the rear panel 4, in which a locking cylinder 6 is provided. The output end of the locking cylinder 6 is connected to a locking pressure plate 61, which is arranged horizontally in front of the top of the locking cylinder 6.

[0027] Sensor fixing plates 7 are provided on the left and right sides of the locking cylinder 6 , and sensors are provided on the sensor fixing plates 7 .

[0028] A guide pulley 21 and a friction copper plate 22 are provided on the inner side wall of the arcuate side rod 2. The friction copper plate 22 is arranged on the inner side wall of the arcuate side rod 2 close to the main frame 1, and the guide pulley 21 is arranged on the inner side wall of the arcuate side rod 2 away from the main frame 1; two grooves are provided on the inner side wall of the arcuate side rod 2, and a guide pulley 21 is hinged in each groove for guiding the wheels of the running vehicle.

[0029] The top edge of the main frame 1 is provided with two left and right buffer pads 8 , which are arranged on one side of the arc-shaped side rod 2 to buffer the thrust of the transfer vehicle.

[0030] A rear support member 9 is respectively provided on the back of the left and right sides of the main frame 1. The rear support member 9 includes a connecting plate, a triangular plate and a bottom plate. The connecting plate is fixed on the side of the main frame 1, and the bottom plate is vertically arranged to the connecting plate. One right-angled side of the triangular plate is connected to the connecting plate, and the other right-angled side is connected to the bottom plate to form a stable triangular structure for stably supporting the main frame 1.

[0031] The outer side of the lower square area of the guide base plate 5 is configured as an inclined step to facilitate the wheels rolling onto the guide base plate 5 .

[0032] Working principle:

[0033] The utility model provides a locking and positioning device for a transfer cart. The staff operates the transfer cart to the designated position and turns the wheels of the transfer cart toward the locking and positioning device. The wheels on the left and right sides slide onto the guide bottom plate 5 respectively, and are guided forward to the buffer pad 8 by the upper guide pulley 21 and the bottom limit folding edge 51 at the same time. The sensor senses that the wheel has reached the position and transmits a signal to the locking cylinder 6. The locking cylinder 6 drives the locking pressure plate 61 to press the transfer cart downward, thereby realizing fast and automatic locking and positioning of the transfer cart.

[0034] The above are only specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the scope of protection of the present invention.

Claims

1. A locking and positioning device for a transfer cart, characterized in that: It comprises a main frame (1), which is a horizontal rectangular frame, and has an arc-shaped side rod (2) at each of the left and right ends of its top edge, wherein the arc tangent of the left arc-shaped side rod (2) is inclined toward the lower left, and the arc tangent of the right arc-shaped side rod (2) is inclined toward the lower right, and the two arc-shaped side rods (2) are arranged symmetrically; a support rod (3) is provided below the outer end of the arc-shaped side rod (2), and the support rod (3) is arranged parallel to the main frame (1); A guide base plate (5) is provided at the left and right ends of the bottom edge of the main frame (1), and the left and right guide base plates (5) are symmetrically arranged; the guide base plates (5) are arranged below the arc-shaped side rods (2), the bottom ends of the support rods (3) are fixed on the guide base plates (5), and the guide base plates (5) are provided with limiting folding edges (51) on the opposite inner sides; A rear panel (4) is provided in the rectangular frame of the main frame (1), a through hole is provided in the middle of the rear panel (4), a locking cylinder (6) is provided in the through hole, and an output end of the locking cylinder (6) is connected to a locking pressure plate (61); sensor fixing plates (7) are provided on the left and right sides of the locking cylinder (6), and a sensor is provided on the sensor fixing plate (7).

2. The locking and positioning device of a transfer cart according to claim 1, characterized in that: The guide base plate (5) comprises an upper square area, a middle trapezoidal area and a lower square area, and the width of the upper square area is smaller than the width of the lower square area.

3. The locking and positioning device of a transfer cart according to claim 2, characterized in that: The limiting fold (51) includes a first fold, a second fold, and a third fold. The first fold is vertically arranged at the edge of the upper square area of the guide base plate (5), the second fold is vertically arranged at the edge of the middle trapezoidal area of the guide base plate (5), and the third fold is arranged parallel to the main frame (1). The third fold serves as a baffle, the second fold serves as a guide plate, and the first fold serves as a fastening plate.

4. The locking and positioning device for a transfer cart according to claim 1, characterized in that: A guide pulley (21) is provided on the inner side wall of the arc-shaped side rod (2), and the guide pulley (21) is arranged on the inner side wall of the arc-shaped side rod (2) away from the main frame (1); two grooves are provided on the inner side wall of the arc-shaped side rod (2), and a guide pulley (21) is hinged in each groove for guiding the wheels of the running vehicle.

5. The locking and positioning device of a transfer cart according to claim 1, characterized in that: A friction copper plate (22) is provided on the inner side wall of the arc-shaped side rod (2), and the friction copper plate (22) is arranged on the inner side wall of the arc-shaped side rod (2) close to the main frame (1).

6. The locking and positioning device for a transfer cart according to claim 1, characterized in that: Two left and right buffer pads (8) are provided on the top edge of the main frame (1). The buffer pads (8) are arranged on one side of the arc-shaped side rod (2) and are used to buffer the thrust of the transfer vehicle.

7. The locking and positioning device of a transfer cart according to claim 1, characterized in that: A rear support member (9) is provided on the back of the left and right sides of the main frame (1), respectively.

8. The locking and positioning device for a transfer cart according to claim 7, characterized in that: The rear support member (9) comprises a connecting plate, a triangular plate and a bottom plate, wherein the connecting plate is fixed to the side of the main frame (1), the bottom plate and the connecting plate are arranged perpendicularly, one right-angled side of the triangular plate is connected to the connecting plate, and the other right-angled side is connected to the bottom plate.

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