A 2000v on-board welding fixture lock
The design of components such as base, cover plate, handle, fixing block and pull rod solves the problem of insufficient operation convenience of traditional locking devices, realizes the quick fixing and disassembly of circuit boards, and is suitable for 2000V voltage environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 合肥卓沫智能科技有限公司
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional locking devices are not convenient to operate when fixing circuit boards. They rely on screws, which result in strong fixing effect but inconvenient operation.
It uses components such as a base, cover plate, handle, fixing block, spring and pull rod. By rotating the handle, the fixing block slides in the fixing groove. Combined with the pull rod and spring, it can be quickly fixed or disassembled.
It enables rapid fixing and disassembly of circuit boards, improves operational convenience, and meets the safety and stability requirements under a 2000V voltage environment.
Smart Images

Figure CN224419035U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of welding fixture technology, and in particular to a 2000V on-board welding fixture latch. Background Technology
[0002] In modern electronics manufacturing, onboard soldering fixtures (also known as PCB soldering jigs or tools) play a crucial role in ensuring that printed circuit boards (PCBs) are accurately positioned and securely fixed during soldering. As electronic products trend towards miniaturization and multifunctionality, the demands for PCB assembly precision are increasing, driving innovation and progress in soldering fixture technology.
[0003] Traditional onboard soldering fixture latches typically consist of several key components: First, the main frame is made of high-strength insulating material to ensure safety during operation in high-voltage environments, while providing a robust and reliable support structure to secure the circuit board and effectively prevent current leakage. Second, the latch mechanism is designed to lock and unlock the circuit board, ensuring its stability throughout the soldering process. To accommodate operating voltage requirements up to 2000V, the latch integrates electrical isolation components, such as special insulating washers or coatings, to enhance electrical safety and protect users from the risk of electric shock. Furthermore, the adjustment mechanism allows for fine-tuning according to the actual size of the circuit board, ensuring that circuit boards of various sizes can be securely clamped through screw adjustments or other forms of adjustable brackets. At the contact point between the latch and the circuit board, a soft, non-conductive cushioning material is often provided, preventing damage to the circuit board and providing additional anti-slip functionality. Finally, voltage level markings and safety warnings are prominently displayed to remind users of the dangers of high voltage and to use the equipment correctly.
[0004] However, in practical applications, locking devices mostly rely on screws to fix the circuit board. Although this method can provide a strong fastening effect, it is not ideal in terms of ease of operation.
[0005] Therefore, those skilled in the art have provided a 2000V onboard welding fixture latch to solve the problems mentioned in the background art. Utility Model Content
[0006] To address the issue that the locking devices mentioned in the background technology mostly rely on screws to fix the circuit board, which, although providing a strong fastening effect, is not ideal in terms of ease of operation, this application provides a 2000V onboard welding fixture locking device.
[0007] The 2000V on-board welding fixture latch provided in this application adopts the following technical solution: it includes a base, the top of the base is covered with a cover plate, and the cover plate is hinged to the base. A handle is rotatably connected to one side of the cover plate. A fixing block is inserted into the handle. A fixing seat fixedly installed on the base is slidably connected to the outer surface of the fixing block. A spring and a pull rod are fixedly connected to one side of the fixing block. The spring is sleeved on the outer surface of the pull rod. A pulling mechanism for pulling the fixing block to make reciprocating motion is installed at one end of the pull rod that passes through the fixing seat.
[0008] Preferably, the handle has a fixing groove inside that matches the size of the fixing block.
[0009] Preferably, the pulling mechanism includes a rotating base, a rotating shaft, and a wrench fixedly installed at one end of the pull rod. One end of the pull rod passes through the fixed base and is fixedly connected to the rotating base. The rotating shaft is fixedly connected inside the rotating base, and both ends of the rotating shaft are rotatably connected to the inner wall of the wrench.
[0010] Preferably, the handle is U-shaped.
[0011] Preferably, the pull rod is slidably connected to the fixed seat.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] 1. By rotating the handle to align the fixing slot with the fixing block, manually rotate the wrench 90 degrees to push the rotating base, which in turn pushes the pull rod to insert the fixing block into the fixing slot. Conversely, manually rotate the wrench 90 degrees in the opposite direction to bring one side of the wrench into contact with the fixing base. At the same time, pull the rotating base to move the pull rod. The movement of the pull rod causes the fixing block to compress the spring and disengage from the fixing slot, thus completing the disassembly of the handle. This allows for the rapid fixing or disassembly of the fixture. Attached Figure Description
[0014] Figure 1 This is a front structural schematic diagram of a 2000V onboard welding fixture latch in an embodiment of this application;
[0015] Figure 2 This is a front cross-sectional view of a 2000V onboard welding fixture latch in an embodiment of this application;
[0016] Figure 3 This is a schematic diagram of the internal structure of the fixing seat of a 2000V onboard welding fixture lock in an embodiment of this application.
[0017] Explanation of reference numerals in the attached drawings: 1. Base; 2. Cover plate; 3. Handle; 4. Fixing groove; 5. Fixing block; 6. Spring; 7. Fixing seat; 8. Pull rod; 9. Rotary seat; 10. Rotating shaft; 11. Wrench. Detailed Implementation
[0018] The following will be combined with the appendix Figure 1-3 The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0019] This application discloses a 2000V onboard welding fixture latch, referring to... Figure 1-3 The system includes a base 1, a cover plate 2 on top of the base 1, and the cover plate 2 is hinged to the base 1. A handle 3 is rotatably connected to one side of the cover plate 2. The handle 3 is U-shaped and has fixing grooves 4 on both sides. A fixing block 5 is inserted into the fixing groove 4. A fixing seat 7 fixedly installed on the base 1 is slidably connected to the outer surface of the fixing block 5. A spring 6 and a pull rod 8 are fixedly connected to one side of the fixing block 5. The spring 6 is sleeved on the outer surface of the pull rod 8. The pull rod 8 is slidably connected to the fixing seat 7, and a pulling mechanism for pulling the fixing block 5 to make reciprocating motion is installed at one end of the pull rod 8 that passes through the fixing seat 7. By setting the handle 3, fixing groove 4, fixing block 5, spring 6, pull rod 8 and pulling mechanism to work together, the fixing block 5 can be pulled out of the fixing groove 4 by the pulling mechanism and the pull rod 8, releasing the fixing of the handle 3. The pulling mechanism pushes the pull rod 8 to drive the fixing block 5 into the fixing groove 4, completing the fixing of the handle 3. This allows the staff to quickly fix the base 1 and the cover plate 2 together.
[0020] In this application, the pulling mechanism includes a rotating seat 9, a rotating shaft 10, and a wrench 11 fixedly installed at one end of the pull rod 8. One end of the pull rod 8 passes through the fixed seat 7 and is fixedly connected to the rotating seat 9. The rotating shaft 10 is fixedly connected inside the rotating seat 9, and both ends of the rotating shaft 10 are rotatably connected to the inner wall of the wrench 11. By setting the wrench 11, rotating seat 9, and rotating shaft 10 to work together, rotating the wrench 11 pulls the pull rod 8 through the rotating seat 9, causing the fixed block 5 to move.
[0021] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0022] The implementation principle of the 2000V onboard welding fixture latch in this application embodiment is as follows: During use, rotating the handle 3 causes the fixing groove 4 to align with the fixing block 5. Manually rotating the wrench 11 ninety degrees causes the wrench 11 to push the rotating seat 9, which in turn pushes the pull rod 8 to push the fixing block 5 into the interior of the fixing groove 4, thus quickly fixing the handle 3. During disassembly, manually rotating the wrench 11 ninety degrees in the opposite direction causes one side of the wrench 11 to contact the fixing seat 7. At the same time, pulling the rotating seat 9 causes the pull rod 8 to move. The movement of the pull rod 8 causes the fixing block 5 to compress the spring 6 and disengage from the interior of the fixing groove 4, thus disassembling the handle 3. This achieves the rapid fixing or disassembly of the fixture.
[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0024] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
Claims
1. A 2000V onboard welding fixture latch, comprising a base (1), characterized in that, The base (1) is covered with a cover plate (2), and the cover plate (2) is hinged to the base (1). A handle (3) is rotatably connected to one side of the cover plate (2). A fixing block (5) is inserted into the inside of the handle (3). A fixing seat (7) is slidably connected to the outer surface of the fixing block (5) and fixedly installed on the base (1). A spring (6) and a pull rod (8) are fixedly connected to one side of the fixing block (5). The spring (6) is sleeved on the outer surface of the pull rod (8). A pulling mechanism for pulling the fixing block (5) to reciprocate is installed at one end of the pull rod (8) that passes through the fixing seat (7).
2. The locking mechanism of a 2000V onboard welding fixture according to claim 1, characterized in that: The handle (3) has a fixing groove (4) inside that matches the size of the fixing block (5).
3. The locking mechanism of a 2000V onboard welding fixture according to claim 1, characterized in that: The pulling mechanism includes a rotating seat (9), a rotating shaft (10), and a wrench (11) fixedly installed at one end of the pull rod (8). The pull rod (8) passes through one end of the fixed seat (7) and is fixedly connected to the rotating seat (9). The rotating shaft (10) is fixedly connected inside the rotating seat (9). The two ends of the rotating shaft (10) are rotatably connected to the inner wall of the wrench (11).
4. The locking mechanism of a 2000V onboard welding fixture according to claim 1, characterized in that: The handle (3) is U-shaped.
5. A 2000V onboard welding fixture locking buckle according to claim 1, characterized in that: The pull rod (8) is slidably connected to the fixed seat (7).