Locking structure for PCB (printed circuit board) material rack

Abstract

The utility model relates to a locking structure for a PCB (printed circuit board) material rack, which belongs to the technical field of PCB transportation and storage tools, and comprises a locking frame, a locking piece and a driving handle, the locking frame is fixed on the PCB material rack, the locking piece is arranged in the locking frame in a penetrating manner, the driving handle is rotatably arranged at the lower end part of the locking frame, and the driving handle is fixed on the PCB material rack. One end of the locking piece extends out of the locking frame, the other end of the locking piece makes contact with the driving handle, the driving handle can control the locking piece to move upwards to lock a synchronous belt on the PCB material frame, an elastic piece is arranged between the locking piece and the locking frame, and the upper end of the locking piece is always away from the synchronous belt under the action of the elastic piece. The utility model aims to provide the locking structure for the PCB material rack, which is reasonable and simple in structure, simple to maintain and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB board transportation and storage tools, in particular to a locking structure for a PCB board rack. Background Art

[0002] In the field of electronics manufacturing, the manufacture, testing, and assembly of PCBs are often involved. Since PCBs are relatively fragile and there are many of them, there are certain risks in the transportation process. Therefore, special racks for transporting and storing PCBs have appeared on the market. Most racks on the market store PCBs by adjusting the width with screws. This is difficult to adjust, has low size adjustment accuracy, low efficiency, and cumbersome parts replacement.

[0003] The domestic database has disclosed the application number 201922469716.7, and the patent name is the utility model of anti-static SMT loading and unloading rack, which includes an adjusting handle, a tensioning block, a screw rod, a bearing fixing seat, a fixing block and a base plate. A ruler is fixedly connected to the top of the base plate, the base plate is U-shaped, and a U-shaped groove is fixedly connected to the inner wall of the front end of the base plate by bolts. One side of the tensioning block is fixedly connected to a shaft lock, and the tensioning block is movably connected to the U-shaped groove. The adjusting handle is fixedly installed on one side of the synchronous pulley, and the synchronous pulley is fixedly sleeved on the shaft. The end of the shaft deviates from the synchronous pulley and passes through the shaft lock and is movably connected in the shaft lock. The end of the shaft close to the shaft lock is fixedly sleeved in the bearing, and the bearing fixing seat is fixedly connected to the inner wall of the base plate. There are two groups of bearing fixing seats, and the two groups of bearing fixing seats are respectively fixedly connected to the inner walls of the front and rear ends of the base plate. The number of bearing fixing seats in each group is four, and the four bearing fixing seats are respectively located at the four corners of the base plate. An M3 type synchronous pulley is fixedly sleeved on one end of the screw rod, and the number of the screw rods is four. The four screw rods are movably connected to the bearing fixing seats on the front and rear ends of the base plate respectively, and a copper nut is movably sleeved on the screw rod, and a pointer is fixedly installed on the copper nut. The fixed block is fixedly connected to the bottom end of the copper nut, and the fixed block is fixedly connected to the slot plate at the end deviating from the copper nut, and the slot plate is movably connected to the screw rod through the fixed block. A belt is provided on the synchronous pulley, and the synchronous pulley is connected to the M3 type synchronous pulley through the belt. The above utility model can quickly adjust the width and is locked by a shaft lock. Although the above technical problems are solved, the shaft lock and the adjustment handle are arranged together, which makes the overall structure more complicated. The shaft lock becomes loose after long-term use, which is inconvenient to maintain. Utility Model Content

[0004] The purpose of the utility model is to provide a locking structure for a PCB board rack which has a reasonable and simple structure, is easy to maintain and easy to use.

[0005] The purpose of this utility model is achieved in this way:

[0006] A locking structure for a PCB board rack comprises a locking frame, a locking member, and a driving handle. The locking frame is fixed to the PCB board rack, the locking member is disposed within the locking frame, and the driving handle is rotatably disposed at the lower end of the locking frame. One end of the locking member extends out of the locking frame, and the other end contacts the driving handle. The driving handle can control the locking member to move upward to lock a synchronous belt on the PCB board rack.

[0007] In the above-mentioned locking structure for the PCB board rack, an elastic member is provided between the locking member and the locking rack, and the upper end portion of the locking member is always away from the synchronous belt under the action of the elastic member.

[0008] In the above-mentioned locking structure for PCB board rack, the elastic member is a spring, the elastic member is sleeved on the locking member, and one end of the elastic member abuts against the locking frame, and the other end abuts against the middle end of the locking member.

[0009] In the above-mentioned locking structure for PCB board rack, a guide rod is passed through the middle end of the elastic member, and a guide groove for the guide rod to slide up and down is provided on the locking frame, and the elastic member abuts against the guide rod.

[0010] In the above-mentioned locking structure for a PCB board rack, a ball is rotatably provided on the lower end portion of the locking member.

[0011] In the above-mentioned locking structure for the PCB board rack, a locking plate is provided at the upper end portion of the locking member.

[0012] In the above-mentioned locking structure for the PCB board rack, the driving handle includes a handle and a driving block connected to each other, the driving block is rotatably arranged on the locking frame through a rotating shaft, and a lifting portion and a retracting portion are provided on the driving block, and a transition arc is provided between the lifting portion and the retracting portion.

[0013] In the above-mentioned locking structure for the PCB board rack, the locking rack is further provided with a connecting hole.

[0014] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0015] The utility model installs a locking structure on one side of the material rack. When the material plate distance of the material rack needs to be fixed, it is only necessary to pull the driving handle, and the driving handle pushes the locking piece to move upward to lock the synchronous belt, so that the material plate of the material rack will not move; when the material plate distance of the material rack needs to be adjusted, the driving handle is pulled, and the driving handle returns to the set position, and the locking piece will move away from the synchronous belt due to the elasticity of the spring, which makes it convenient for users to make adjustments. The overall structure is simple and easy to maintain and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the installation position of the utility model.

[0017] Figure 2 This is one of the structural diagrams of the present utility model.

[0018] Figure 3 It is a cross-sectional view of the present utility model.

[0019] Figure 4 This is the second structural diagram of the present utility model.

[0020] 1-locking frame; 2-locking member; 3-driving handle; 4-elastic member; 11-connecting hole; 21-ball; 22-locking plate; 31-handle; 32-driving block; 41-guide rod; 42-guide groove; 321-lifting part; 322-retracting part; 323-transition arc. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to specific embodiments of the present invention:

[0022] like Figures 1-4 As shown: A locking structure for a PCB board rack, comprising a locking frame 1, a locking member 2 and a driving handle 3, wherein the locking frame 1 is fixed to the PCB board rack, the locking member 2 is inserted into the locking frame 1, and the driving handle 3 is rotatably arranged at the lower end of the locking frame 1, one end of the locking member 2 extends out of the locking frame 1, and the other end thereof contacts the driving handle 3, and the driving handle 3 can control the locking member 2 to move upward to lock the synchronous belt on the PCB board rack, an elastic member 4 is provided between the locking member 2 and the locking frame 1, and the upper end of the locking member 2 is always away from the synchronous belt under the action of the elastic member 4, and the elastic member 4 is The spring, the elastic member 4 is sleeved on the locking member 2, and one end of the elastic member 4 abuts against the locking frame 1, and the other end abuts against the middle end of the locking member 2. By installing a locking structure on one side of the material rack, when it is necessary to fix the distance between the material rack's material loading plates, it is only necessary to pull the driving handle, and the driving handle pushes the locking member to move upward to lock the synchronous belt, so that the material rack's material loading plates will not move; when it is necessary to adjust the distance between the material rack's material loading plates, pull the driving handle, and the driving handle returns to the set position. The locking member will move away from the synchronous belt due to the elasticity of the spring, which makes it convenient for users to make adjustments, and the overall structure is simple, easy to maintain and install.

[0023] In the above-mentioned locking structure for the PCB board rack, a guide rod 41 is passed through the middle end of the elastic member 4, and a guide groove 42 is provided on the locking frame 1 for the guide rod 41 to slide up and down. The elastic member 4 rests on the guide rod 41. Specifically, this is to ensure that the locking member can move in one direction and will not rotate.

[0024] In the above-mentioned locking structure for PCB board rack, a ball 21 is rotatably provided at the lower end of the locking member 2. Specifically, this is to reduce the friction between the locking member and the driving handle and extend the service life of the locking member.

[0025] In the above-mentioned locking structure for the PCB board rack, a locking plate 22 is provided at the upper end of the locking member 2. Specifically, the locking plate can be provided with teeth adapted to the synchronous belt, so that the synchronous belt can be further fixed.

[0026] In the above-mentioned locking structure for the PCB board rack, the driving handle 3 includes a handle 31 and a driving block 32 that are connected to each other. The driving block 32 is rotatably arranged on the locking frame 1 through a rotating shaft, and a lifting portion 321 and a retracting portion 322 are provided on the driving block 32. A transition arc 323 is provided between the lifting portion 321 and the retracting portion 322. Specifically, this is to facilitate the switching back and forth of the locking member between the lifting portion and the retracting portion to ensure smoothness.

[0027] In the above-mentioned locking structure for PCB board rack, the locking rack 1 is further provided with a connecting hole 11, specifically, to facilitate the connection and disassembly of the locking rack with the rack.

[0028] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A locking structure for a PCB board rack, characterized by: The invention comprises a locking frame (1), a locking member (2) and a driving handle (3); the locking frame (1) is fixed on a PCB board rack; the locking member (2) is inserted into the locking frame (1); the driving handle (3) is rotatably arranged at the lower end of the locking frame (1); one end of the locking member (2) extends out of the locking frame (1) and the other end contacts the driving handle (3); and the driving handle (3) can control the locking member (2) to move upward to lock the synchronous belt on the PCB board rack.

2. The locking structure for a PCB board rack according to claim 1, characterized in that: An elastic member (4) is provided between the locking member (2) and the locking frame (1), and the upper end portion of the locking member (2) is always away from the synchronous belt under the action of the elastic member (4).

3. The locking structure for a PCB board rack according to claim 2, characterized in that: The elastic member (4) is a spring, and the elastic member (4) is sleeved on the locking member (2). One end of the elastic member (4) abuts against the locking frame (1), and the other end abuts against the middle end of the locking member (2).

4. The locking structure for a PCB board rack according to claim 3, characterized in that: A guide rod (41) is passed through the middle end of the elastic member (4), and a guide groove (42) for the guide rod (41) to slide up and down is provided on the locking frame (1), and the elastic member (4) abuts against the guide rod (41).

5. The locking structure for a PCB board rack according to claim 1, characterized in that: A ball (21) is rotatably provided at the lower end of the locking member (2).

6. The locking structure for a PCB board rack according to claim 5, characterized in that: A locking plate (22) is provided at the upper end of the locking member (2).

7. The locking structure for a PCB board rack according to claim 1, 2, 3, 4, 5, or 6, characterized in that: The driving handle (3) comprises a handle (31) and a driving block (32) connected to each other. The driving block (32) is rotatably arranged on the locking frame (1) via a rotating shaft. The driving block (32) is provided with a jacking portion (321) and a retracting portion (322). A transition arc (323) is provided between the jacking portion (321) and the retracting portion (322).

8. The locking structure for a PCB board rack according to claim 7, characterized in that: The locking frame (1) is also provided with a connecting hole (11).

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