Cart for conveying circuit board

Abstract

The utility model discloses a cart for transporting circuit boards, which comprises a cart body, a plurality of bearing sticks arranged in parallel, a bearing frame and a limiting rod, a hinge rod is arranged at one end of the top of the cart body, the bearing sticks are arranged on the bearing frame, one end of the bearing frame is hinged on the hinge rod, a clamping block is arranged at the other end of the bearing frame, and the end part of the limiting rod is hinged on the cart body. The limiting rod is provided with a clamping step, and the bottom of the clamping block can abut against the clamping step. The cart for conveying the circuit boards is simple in structure, not only can be matched with a feeding roller of a circuit board testing machine, but also can ensure that one or more circuit boards at the top of each pile of circuit boards placed on the bearing rollers cannot slide forwards in the moving process of the cart, so that the circuit boards are prevented from being collided and damaged, and the service life of the circuit boards is prolonged. The product quality is ensured.

Description

Technical Field

[0001] This utility model relates to a trolley for transporting circuit boards. Background Technology

[0002] Circuit board functional testing is a testing process for printed circuit boards in the electronics manufacturing industry. It aims to verify whether the entire circuit system on the circuit board is working properly according to the design specifications. This test is crucial for ensuring product quality, reliability, and performance.

[0003] Before testing, operators use a trolley to push the cleaned circuit boards to the side of the board testing machine's loading roller. To accommodate the automatic loading of the machine's roller, the existing trolleys used for transporting circuit boards require a horizontal support roller on the trolley. When the operator pushes the trolley towards the loading roller, the support roller on the trolley is positioned above it. Then, the loading roller moves upwards, and the adjacent roller on the trolley... The two support rollers move upwards through the gap and support the circuit board on the support roller. As the feeding roller continues to move upwards, the circuit board on the support roller is transferred to the feeding roller. When the bottom of the feeding roller is higher than the top of the support roller on the trolley, the rotating feeding roller can transport the circuit board to the circuit board testing machine. However, in the existing trolley, because the support roller for placing the circuit board is horizontal, one or more circuit boards at the top of each stack of circuit boards placed on the support roller are prone to slipping forward during the movement of the trolley, which can cause the circuit boards to bump and be damaged, resulting in defective products. Utility Model Content

[0004] The purpose of this invention is to provide a trolley for transporting circuit boards, thereby solving at least one of the aforementioned technical problems.

[0005] According to one aspect of the present invention, a trolley for transporting circuit boards is provided, comprising:

[0006] The vehicle body has a hinge rod at one end of its top.

[0007] Multiple parallel-arranged support rods;

[0008] A support frame, with support rods mounted on it, one end of which is hinged to a hinge rod, and the other end of which has a locking block; and

[0009] The limiting rod has its end hinged to the vehicle body and has a locking step. The bottom of the locking block can press against the locking step.

[0010] This utility model discloses a trolley for transporting circuit boards. Before transporting the circuit boards, rotating the limiting rod separates the locking step on the limiting rod from the locking block on the support frame. Since one end of the support frame is hinged to the hinge rod, the other end of the support frame moves downward and rests against the top of the trolley body. At this time, the support frame is tilted, and the support rod on the support frame is also tilted, with the front end higher than the rear end. Then, multiple stacks of circuit boards are placed on the support rod. The tilted support rod ensures that the circuit boards on the support rod will not slip forward during transport. When the operator pushes the trolley towards the feeding roller of the circuit board testing machine, the support rod on the trolley is positioned above the feeding roller of the circuit board testing machine. Then, one end of the support frame with the locking block is lifted upward, and rotating the limiting rod causes the bottom of the locking block on the support frame to press against the locking step on the limiting rod. At this time, the support frame and the support rod on the support frame are horizontal, and the multiple stacks of circuit boards placed on the support rod are also horizontal. The feeding roller of the circuit board testing machine prepares to move upward from the gap between two adjacent support rollers. Then, the feeding roller of the circuit board testing machine moves upward from the gap between two adjacent support rollers on the trolley and supports the circuit boards on the support rollers. As the feeding roller continues to move upward, the circuit boards on the support rollers are transferred to the feeding roller of the circuit board testing machine. When the bottom of the feeding roller of the circuit board testing machine is higher than the top of the support rollers on the trolley, the feeding roller can transport the circuit boards to the circuit board testing machine. When the circuit boards on the support rollers are completely transferred to the feeding roller of the circuit board testing machine, the trolley can be pulled away. The trolley of this utility model has a simple structure. It can not only cooperate with the feeding roller of the circuit board testing machine, but also ensure that one or more circuit boards at the top of each stack of circuit boards placed on the support rollers will not slip forward during the movement of the trolley, avoiding collisions and damage to the circuit boards and ensuring product quality.

[0011] Furthermore, the bottom of the snap-fit ​​block is sloped, and the snap-fit ​​steps are arranged at an angle.

[0012] Therefore, the bottom of the inclined snap-fit ​​block cooperates with the inclined snap-fit ​​steps to ensure that the snap-fit ​​block and the snap-fit ​​steps will not easily separate when the support frame and the support rod are in a horizontal state. Moreover, when the support frame needs to be adjusted to a horizontal state, the snap-fit ​​steps on the limit rod can be easily rotated to the bottom of the snap-fit ​​block on the support frame by rotating the limit rod.

[0013] Furthermore, the height of the bottom end of the snap-fit ​​block near the support frame is higher than the height of the bottom end of the snap-fit ​​block away from the support frame, and the height of the snap-fit ​​step near the support frame is higher than the height of the snap-fit ​​step away from the support frame.

[0014] Therefore, this ensures that the locking block and locking step will not easily separate when the support frame is horizontal, and that the locking step can easily rotate to the bottom of the locking block when the support frame needs to be adjusted to a horizontal position.

[0015] Furthermore, it also includes an L-shaped limiting rod, the longitudinal section of which is located on the other end of the support frame, and the transverse section of which can hook upwards onto the vehicle body.

[0016] Therefore, when the operator pushes the trolley toward the feeding roller of the circuit board testing machine, during the process of lifting one end of the mounting block of the support frame upward, the lateral section of the L-shaped limit rod can limit the height of the support frame being lifted upward, preventing the circuit board on the support roller from slipping off due to excessive upward lifting of the support frame.

[0017] Furthermore, the top of the support frame is provided with a mounting plate, and the end of the support rod is located on the mounting plate.

[0018] Therefore, the mounting plate can be used to mount and fix the support rod. When the circuit board is placed on the support rod, one side of each stack of circuit boards can rest against the mounting plate, which can prevent the circuit board from sliding backward during the movement of the trolley.

[0019] Furthermore, the vehicle body is provided with a hinge, and the end of the limiting rod is located on the hinge, with the limiting rod rotatably connected to the hinge.

[0020] Therefore, the limiting rod can rotate on the vehicle body through the hinge to cause the locking block on the support frame to press against the locking step on the limiting rod, or the locking block on the support frame to separate from the locking step on the limiting rod.

[0021] Furthermore, the limiting rod is provided with a pressing part.

[0022] Therefore, the limit rod can be rotated very easily by pressing the part.

[0023] Furthermore, the support frame is equipped with handles.

[0024] Therefore, workers can easily lift one end of the support frame upwards using the handle, and can also easily push the cart using the handle.

[0025] Furthermore, the bottom of the vehicle is equipped with casters with brakes.

[0026] Therefore, when the cart is pushed to the desired position, the casters with brakes can be locked to prevent the cart from moving randomly. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a trolley for transporting circuit boards according to the present invention;

[0028] Figure 2 for Figure 1 The diagram shows the structure of the trolley from another perspective;

[0029] Figure 3 for Figure 1 A structural schematic diagram of the trolley from another perspective;

[0030] Figure 4 for Figure 3 The diagram shows a trolley with its support frame tilted. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. It should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components.

[0033] See Figures 1 to 4 A trolley for transporting circuit boards includes a trolley body 1, a support rod 2, a support frame 3, a limiting rod 4, and an L-shaped limiting rod 5.

[0034] See Figures 1 to 4 The front end of the top of vehicle body 1 ( Figure 3 A hinge rod 11 is installed at the right end of the top of the trolley body 1, and one end of the support frame 3 ( Figure 3 The right end of the middle support frame 3 is hinged to the hinge rod 11, and the other end of the support frame 3 ( Figure 3 A snap-fit ​​block 31 is formed on the left end of the middle support frame 3.

[0035] See Figures 2 to 4The vehicle body 1 has a hinge part 12 formed thereon. The end of the limiting rod 4 is mounted on the hinge part 12 through a rotating shaft. The limiting rod 4 is rotatably connected to the hinge part 12. The limiting rod 4 has a locking step 41 formed thereon. The bottom of the locking block 31 on the support frame 3 can press against the locking step 41.

[0036] See Figure 3 and Figure 4 The bottom of the snap-fit ​​block 31 is sloped, and the height of the end of the bottom of the snap-fit ​​block 31 near the support frame 3 is higher than the height of the end of the bottom of the snap-fit ​​block 31 away from the support frame 3, that is... Figure 3 The bottom of the middle locking block 31 is lower on the left and higher on the right. The locking steps 41 are arranged at an angle, and the height of the end of the locking step 41 closer to the support frame 3 is higher than the height of the end of the locking step 41 farther from the support frame 3. Figure 3 The middle locking step 41 is lower on the left and higher on the right. The bottom of the inclined locking block 31 cooperates with the inclined locking step 41 to ensure that the support frame 3 and the support rod 2 are in a horizontal state. Figure 3 As shown in the diagram, the locking block 31 and the locking step 41 will not easily separate. Moreover, when the support frame 3 needs to be adjusted to a horizontal position, rotating the limiting rod 4 allows the locking step 41 on the limiting rod 4 to easily rotate to the bottom of the locking block 31 on the support frame 3. Figure 4 (The state shown).

[0037] See Figures 2 to 4 The limiting rod 4 has a pressing part 42 formed on it, and the limiting rod 4 can be rotated very easily by pressing part 42.

[0038] See Figures 1 to 4 The top of the support frame 3 is formed with a mounting plate 32. The ends of the support rods 2 are fixed on the mounting plate 32. There are multiple support rods 2, which are arranged in parallel. The mounting plate 32 can be used to install and fix the support rods 2. When circuit boards are placed on the support rods 2, one side of each stack of circuit boards can abut against the mounting plate 32. During the movement of the trolley, the circuit boards can be prevented from sliding backward.

[0039] See Figure 2The longitudinal section of the L-shaped limiting rod 5 is fixed on the support frame 3, and the transverse section of the L-shaped limiting rod 5 can hook the vehicle body 1 upward. When the operator pushes the trolley toward the feeding roller of the circuit board testing machine and the support roller 2 on the trolley is above the feeding roller of the circuit board testing machine, during the process of lifting one end of the setting locking block 31 of the support frame 3 upward, the transverse section of the L-shaped limiting rod 5 can limit the height of the support frame 3 to prevent the circuit board on the support roller 2 from slipping due to excessive height of the support frame 3 to be lifted upward. Moreover, since the bottom of the locking block 31 is inclined and the locking steps 41 are arranged at an angle, when the limiting rod 4 is rotated, the locking steps 41 on the limiting rod 4 can be easily rotated to the bottom of the locking block 31 on the support frame 3.

[0040] See Figures 2 to 4 The support frame 3 is equipped with a handle 33. After rotating the limiting rod 4, the locking step 41 on the limiting rod 4 is separated from the locking block 31 on the support frame 3. Figure 4 As shown in the diagram, the operator can easily lift one end of the support frame 3 upwards using the handle 33, and can also easily push the trolley using the handle 33.

[0041] See Figures 1 to 4 The four corners of the bottom of the cart body 1 are equipped with casters 13 with brakes. The cart can be moved very easily by the casters 13. When the cart is pushed to the desired position, the casters 13 with brakes can be locked to prevent the cart from moving at will.

[0042] See Figures 1 to 4 The trolley for transporting circuit boards of this utility model, before transporting the circuit boards, rotates the limiting rod 4 by pressing part 42, so that the locking step 41 on the limiting rod 4 separates from the locking block 31 on the support frame 3. Since one end of the support frame 3 is hinged to the hinge rod 11, the other end of the support frame 3 will move downward and abut against the top of the vehicle body 1. At this time, the support frame 3 is in an inclined state, and the support rod 2 on the support frame is in a state where the front end is higher than the rear end. Figure 4 (As shown in the diagram), then multiple stacks of circuit boards are placed on the support roller 2. Each stack of circuit boards on the support roller 2 rests against the mounting plate 32. The inclined support roller 2 ensures that the circuit boards on the support roller 2 will not slide forward during transportation. When the operator pushes the trolley toward the feeding roller of the circuit board testing machine, the support roller 2 on the trolley is positioned above the feeding roller of the circuit board testing machine. The casters 13 are locked to prevent the trolley from moving arbitrarily. Then, one end of the setting latching block 31 of the support frame 3 is lifted upward. By pressing the limit rod 4 through the pressing part 42, the bottom of the latching block 31 on the support frame 3 is pressed against the latching step 41 on the limit rod 4. At this time, the support frame 3 and the support roller 2 on the support frame 3 are in a horizontal state. Figure 3As shown in the diagram, the stacks of circuit boards placed on the support roller 2 are also horizontal, preparing for the feeding roller of the circuit board testing machine to move upward from the gap between two adjacent support rollers 2. Then, the feeding roller of the circuit board testing machine will move upward and support the circuit boards on the support roller 2 from the gap between two adjacent support rollers 2 on the trolley. As the feeding roller continues to move upward, the circuit boards on the support roller 2 are transferred to the feeding roller of the circuit board testing machine. When the bottom of the feeding roller of the circuit board testing machine is higher than the top of the support roller 2 on the trolley, the feeding roller can transport the circuit boards to the circuit board testing machine. When the circuit boards on the support roller 2 are completely transferred to the feeding roller of the circuit board testing machine, the trolley can be pulled away. The trolley of this utility model has a simple structure. It can not only cooperate with the feeding roller of the circuit board testing machine, but also ensure that one or more circuit boards at the top of each stack of circuit boards placed on the support roller 2 will not slip forward during the movement of the trolley, avoiding collisions and damage to the circuit boards and ensuring product quality.

[0043] The above descriptions are merely some embodiments of this utility model, intended to illustrate the technical means of this utility model, and are not intended to limit the technical scope of this utility model. Any obvious improvements made to this utility model by those skilled in the art in conjunction with existing common knowledge fall within the protection scope of this utility model.

Claims

1. A cart for transporting circuit boards, characterized by, The utility model relates to a vehicle body, which comprises: a vehicle body, one end of the top of the vehicle body being provided with a hinged rod; a plurality of parallel arranged bearing rods; a bearing frame, the bearing rods being arranged on the bearing frame, one end of the bearing frame being hinged to the hinged rod, and the other end of the bearing frame being provided with a clamping block; and a limiting rod, the end of the limiting rod being hinged to the vehicle body, the limiting rod being provided with a clamping step, and the bottom of the clamping block being capable of being pressed against the clamping step.

2. The cart of claim 1, wherein, The bottom of the clamping block is in the form of an inclined surface, and the clamping step is arranged in an inclined manner.

3. The cart of claim 2, wherein, The height of the bottom of the clamping block near one end of the bearing frame is higher than the height of the bottom of the clamping block away from the other end of the bearing frame, and the height of the clamping step near one end of the bearing frame is higher than the height of the clamping step away from the other end of the bearing frame.

4. The cart of claim 1, wherein, The utility model further comprises an L-shaped limiting rod, the longitudinal segment of the L-shaped limiting rod being arranged on the other end of the bearing frame, and the transverse segment of the L-shaped limiting rod being capable of being hooked upward to the vehicle body.

5. The cart of claim 1, wherein, The top of the bearing frame is provided with a mounting plate, and the end of the bearing rod is arranged on the mounting plate.

6. The cart of claim 1, wherein, The vehicle body is provided with a hinged part, the end of the limiting rod is arranged on the hinged part, and the limiting rod is rotationally connected to the hinged part.

7. The cart of claim 1, wherein, The limiting rod is provided with a pressing part.

8. The cart of claim 1, wherein, The bearing frame is provided with a handle.

9. The cart of claim 1, wherein, The bottom of the vehicle body is provided with a caster with a brake.

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