Door electrophoresis anti-opening jig
By designing an anti-opening fixture for car door electrophoresis, and using limiting components to lock and fix the fixture to the car body and door, the problem of equipment collision caused by door shaking is solved, improving operational convenience and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LEAPMOTOR TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-19
AI Technical Summary
During automobile production, the doors often wobble due to lack of fixation during electrophoresis, leading to a high incidence of equipment collision accidents.
Design a door electrophoresis anti-opening fixture, including a first limiting member, a second limiting member and a connecting member, to fix the car body and the door by snap-fit, ensuring that the door maintains a stable opening during the electrophoresis process and avoids shaking.
It significantly improves ease of operation, optimizes production time, reduces the incidence of equipment collision accidents caused by door shaking, and avoids door displacement and equipment collision.
Smart Images
Figure CN224378263U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive coating manufacturing technology, and in particular to a door electrophoresis anti-opening fixture. Background Technology
[0002] In the automobile production process, pretreatment and electrophoresis are required. During this process, the car doors need to be opened at a certain angle to maintain an effective distance between the door and the side door frame. However, because the doors are not effectively secured, they may open and close arbitrarily, causing the electrophoresis tank to shake and collide with the equipment on both sides during pretreatment, leading to quality problems. Utility Model Content
[0003] This application provides a door electrophoresis anti-opening fixture, which aims to address the technical problem of reducing the incidence of equipment collision accidents caused by door shaking.
[0004] Technical solution: This application provides a door electrophoresis anti-opening fixture, comprising:
[0005] The first limiting member has a first groove, which is used to accommodate the vehicle body;
[0006] The second limiting member has a second groove for accommodating the vehicle door;
[0007] The connecting parts are respectively connected to the first limiting member and the second limiting member.
[0008] Optionally, the first limiting member protrudes from one side of the connector, and the second limiting member protrudes from the side of the connector away from the first limiting member;
[0009] The opening of the first groove is located on the side of the first limiting member near the connecting member, and the opening of the second groove is located on the side of the second limiting member near the connecting member.
[0010] Optionally, it also includes a third limiting member, one end of which is connected to the second limiting member, and the other end of which extends in the opposite direction to the opening of the second groove and abuts against the sheet metal of the door.
[0011] Optionally, the first limiting member includes a first connecting segment, a first bending segment, and a second connecting segment connected in sequence, wherein the first connecting segment, the first bending segment, and the second connecting segment form the first groove;
[0012] The end of the second connecting segment away from the first bent segment is connected to the connector.
[0013] Optionally, the first bending segment is arc-shaped, and the radius of the first bending segment is R1, satisfying 3mm≤R1≤4mm.
[0014] Optionally, there is an included angle α between the first connecting segment and the second connecting segment, satisfying 25°≤a≤35°.
[0015] Optionally, the second limiting member includes a third connecting segment, a second bending segment, and a fourth connecting segment connected in sequence, wherein the third connecting segment, the second bending segment, and the fourth connecting segment form the second groove;
[0016] The end of the third connecting segment away from the second bent segment is connected to the connector.
[0017] The end of the fourth connecting segment away from the second bending segment is connected to the third limiting member.
[0018] Optionally, the second bending segment is arc-shaped, and the radius of the second bending segment is R2, satisfying 2mm≤R2≤3mm.
[0019] Optionally, there is an included angle b between the third connector and the fourth connector, satisfying 35°≤b≤45°.
[0020] Optionally, it also includes an installation handle connected to the end of the first connecting segment away from the first bent segment.
[0021] Beneficial Effects: Compared with the prior art, the car door electrophoresis anti-opening fixture of this application includes a first limiting member, a second limiting member, and a connecting member. The first limiting member is used to connect to the car body and has a first groove for accommodating the car body. The second limiting member is used to connect to the car door and has a second groove for accommodating the car door, and the shape of the second groove is adapted to the local structural contour of the car door. The connecting member is connected to the first limiting member and the second limiting member respectively. This car door electrophoresis anti-opening fixture, through the snap-fit between the first limiting member and the car body, the snap-fit between the second limiting member and the car door, and the cooperation with the connecting member, not only significantly improves the ease of operation and optimizes production time, but also effectively reduces the incidence of equipment collision accidents caused by car door shaking through a stable and reliable limiting effect.
[0022] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0023] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.
[0024] Figure 1 This is a cross-sectional structural schematic diagram of the car door electrophoresis anti-opening fixture provided in an exemplary embodiment of this disclosure;
[0025] Figure 2This is a cross-sectional structural diagram of the door electrophoresis anti-opening fixture provided in the exemplary embodiment of this disclosure when it is in the installation state;
[0026] Figure 3 This is a schematic diagram of the installation position of the door electrophoresis anti-opening fixture provided in an exemplary embodiment of this disclosure;
[0027] Figure 4 yes Figure 3 A magnified view of part A in the middle;
[0028] Figure 5 This is a schematic diagram of the overall structure of the door electrophoresis anti-opening fixture provided in an exemplary embodiment of this disclosure;
[0029] Figure 6 This is a schematic diagram of the installation state of the third limiting member provided in an exemplary embodiment of this disclosure.
[0030] Explanation of reference numerals in the attached figures:
[0031] 10-Body; 11-Side door frame; 20-Door; 21-Door lock stop; 22-Sheet metal;
[0032] 100 - First limiting component; 110 - First groove; 120 - First connecting section; 130 - Second connecting section; 140 - First bending section;
[0033] 200 - Second limiting component; 210 - Second groove; 220 - Third connecting section; 230 - Fourth connecting section; 240 - Second bending section;
[0034] 300-Connector;
[0035] 400 - Third limiting component; 410 - Limiting body; 420 - Bending part;
[0036] 500 - Install handle. Detailed Implementation
[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.
[0039] In the automobile production process, pretreatment and electrophoresis are required. During this process, the car doors need to be opened at a certain angle to maintain an effective distance between the door and the side door frame. However, because the doors are not effectively secured, they may open and close arbitrarily, causing the electrophoresis tank to shake and collide with the equipment on both sides during pretreatment, leading to quality problems.
[0040] In view of this, embodiments of this application provide a door electrophoresis anti-opening fixture, which aims to solve at least one of the above problems.
[0041] Please see Figure 1 This disclosure provides a door electrophoresis anti-opening fixture, including a first limiting member 100, a second limiting member 200, and a connecting member 300. The first limiting member 100 is used to connect to the vehicle body 10. Specifically, the first limiting member 100 has a first groove 110 for accommodating the vehicle body 10, and the shape of the first groove 110 is adapted to the partial structural contour of the vehicle body 10. Please refer to [link / reference]. Figure 2 , Figure 3 and Figure 4 In practical applications, operators only need to snap the first limiting component 100 into the corresponding position on the vehicle body 10, and the partial structure of the vehicle body 10 can be embedded into the first groove 110. Through the snap-fit between the first groove 110 and the vehicle body 10, a stable mechanical connection is formed, thereby achieving rapid positioning and fixation of the door electrophoresis anti-opening fixture and the vehicle body 10. This snap-fit method abandons the traditional bolt-fastening connection method and shortens the installation time.
[0042] like Figure 1 As shown, the second limiting member 200 is used to connect the door 20. Specifically, the second limiting member 200 has a second groove 210, which is used to accommodate the door 20, and the shape of the second groove 210 is adapted to the local structural contour of the door 20. In practical applications, when the second limiting member 200 is snapped into the door 20, the local structure of the door 20 can be precisely accommodated in the second groove 210. Utilizing the mechanical limiting effect of the second groove 210, a reliable connection is achieved between the door electrophoresis anti-opening fixture and the door 20. That is, through the double snap-fit of the first limiting member 100 and the second limiting member 200, the installation and removal process of the door electrophoresis anti-opening fixture is extremely simple. Operators can complete the installation and removal operations by hand without the need for complex tools, effectively improving the operating efficiency on the production line.
[0043] like Figure 1 As shown, the aforementioned connector 300 is connected to both the first limiting member 100 and the second limiting member 200. That is, the connector 300 connects the first limiting member 100 and the second limiting member 200, transmitting mechanical force and controlling the opening angle of the door 20. During the design phase, the length of the connector 300 can be designed according to the door opening requirements of different car models. For example, for compact sedans and SUVs, by customizing connectors 300 of different lengths, it can be ensured that the door 20 maintains the optimal opening angle during the electrophoresis process, meeting both process requirements and effectively mitigating collision risks.
[0044] Through the above technical solution, this door electrophoresis anti-opening fixture, through the engagement of the first limiting member 100 with the body 10, the engagement of the second limiting member 200 with the door 20, and the cooperation with the connecting member 300, not only significantly improves the ease of operation and optimizes production time, but also effectively reduces the incidence of equipment collision accidents caused by the shaking of the door 20 through a stable and reliable limiting effect.
[0045] In some examples, such as Figure 2 and Figure 4 As shown, the first limiting member 100 can engage with the side door frame 11 of the vehicle body 10, that is, the shape of the first groove 110 matches the contour of the side door frame 11, thereby fixing the electrophoretic anti-opening fixture of the door to the vehicle body 10. The second limiting member 200 can engage with the door lock stop 21, that is, the shape of the second groove 210 matches the contour of the door lock stop 21, thereby fixing the electrophoretic anti-opening fixture of the door to the door 20. Compared with the traditional design that requires drilling holes in the vehicle body 10 to install bolts, this embodiment avoids paint damage and is convenient to install.
[0046] In some embodiments, such as Figure 1As shown, the first limiting member 100 protrudes from one side of the connector 300, and the second limiting member 200 protrudes from the side of the connector 300 away from the first limiting member 100. The opening of the first groove 110 is located on the side of the first limiting member 100 near the connector 300, and the opening of the second groove 210 is located on the side of the second limiting member 200 near the connector 300. That is, the engaging directions of the first limiting member 100 and the second limiting member 200 are opposite.
[0047] It should be noted that when the body 10 and the door 20 are fixed and limited, the first limiting member 100 is engaged with the corresponding structure of the body 10 in the plane direction close to the connecting member 300, and the second limiting member 200 is engaged with the corresponding structure of the door 20 in the plane direction close to the connecting member 300. The first limiting member 100 and the second limiting member 200 form a straight hand transmission path through the connecting member 300. During the electrophoresis production process, the clamping force generated by the reverse engagement is used to keep the door 20 stably at the set opening, avoiding problems such as door 20 displacement and collision with equipment due to the shaking of the tank. At the same time, this layout also facilitates convenient installation and disassembly in the gap space between the body 10 and the door 20, adapting to the needs of different vehicle models.
[0048] In some embodiments, such as Figure 1 As shown, this door electrophoresis anti-opening fixture also includes a third limiting member 400. One end of the third limiting member 400 is connected to the second limiting member 200, and the other end of the third limiting member 400 extends in the opposite direction to the opening of the second groove 210. The extended end contacts and abuts against the sheet metal 22 of the door 20. That is, the second limiting member 200 is engaged with the door 20 through the second groove 210, and the third limiting member 400 abuts against the sheet metal 22 of the door 20 with its end. The two work together to restrict the door 20 from different directions, making the opening of the door 20 more stable during electrophoresis, reducing the possibility of the door 20 shifting or colliding with the equipment due to the shaking of the groove, improving the posture stability of the door 20, and ensuring the quality of electrophoresis.
[0049] Specifically, please refer to Figure 5 and Figure 6 The third limiting member 400 includes a limiting body 410 and a bent portion 420. The limiting body 410 extends in the direction opposite to the opening of the second groove 210, and the extended end contacts and abuts against the sheet metal 22 of the door 20. The limiting plate is connected to the fourth connecting section 230 of the second limiting member 200 through the bent portion 420. It should be noted that, as Figure 1As shown, the bent portion 420 is arc-shaped, and the radius of the bent portion 420 is R3, satisfying 7mm≤R3≤9mm. That is, R3 can be any value among 7.0mm, 7.1mm, 7.2mm, 7.3mm, 7.4mm, 7.5mm, 7.6mm, 7.7mm, 7.8mm, 7.9mm, 8.0mm, 8.1mm, 8.2mm, 8.3mm, 8.4mm, 8.5mm, 8.6mm, 8.7mm, 8.8mm, 8.9mm, and 9.0mm, or a range between any two values. On the one hand, the larger radius of curvature can absorb the installation impact and vibration during the electrophoresis process when the limiting body 410 abuts against the sheet metal 22, avoiding indentation of the sheet metal 22 and damage to the fixture, while also conforming to sheet metal 22 with different curvatures through elastic deformation; on the other hand, the standard radius range of R3 can adapt to the angle difference between the sheet metal 22 and the fourth connecting section 230 of different vehicle models, ensuring that the limiting body 410 abuts against the sheet metal 22 at a suitable angle, balancing the stability of support and the flexibility of buffer.
[0050] In some embodiments, please refer to Figure 5 The first limiting member 100 includes a first connecting segment 120, a first bending segment 140, and a second connecting segment 130 connected in sequence. The first connecting segment 120, the first bending segment 140, and the second connecting segment 130 form a first groove 110. The end of the second connecting segment 130 furthest from the first bending segment 140 is connected to the connecting member 300. Through this structure, the first limiting member 100 can achieve a matching and snap-fit connection with the corresponding structure of the vehicle body 10 by utilizing the shape and connection relationship of each segment, thereby fixing it to the vehicle body 10. This provides basic body body 10 connection support for the electrophoretic anti-opening mechanism of the door 20. Subsequently, in conjunction with other limiting members, it jointly completes the restriction of the opening degree of the door 20.
[0051] It should be noted that, as Figure 1 As shown, the first bending segment 140 is arc-shaped, and its radius is R1, satisfying 3mm≤R1≤4mm. That is, the radius R1 of the first bending segment 140 can be any value or a range between any two of the following: 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, and 4.0mm. The first bending segment 140 effectively alleviates the stress concentration problem during the snap-fit process, protecting the door electrophoretic anti-opening fixture from easy damage and preventing scratches on the surface of the body 10. The uniform R1 dimension enhances the adaptability of the door electrophoretic anti-opening fixture to different vehicle models. Regardless of the changes in the outline details of the side door frame 11 of the body 10, reliable limiting can be achieved through the first limiting member 100, ensuring the universality and stability of the door electrophoretic anti-opening fixture.
[0052] In addition, such as Figure 1 As shown, there is an included angle α between the first connecting segment 120 and the second connecting segment 130, satisfying 25°≤a≤35°. That is, the included angle α can be any angle or a range between any two angles from 25°, 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34°, and 35°. The range of included angle α is optimized through mechanics to ensure stable support for the snap-fit structure of the first limiting member 100: In a smaller angle range (e.g., 25° to 29°), the included angle is smaller, and the opening size of the first groove 110 is reduced, which can enhance the clamping force during snap-fit. This is suitable for models with a compact body structure and narrow snap-fit space (e.g., small cars, compact cars), ensuring that the door electrophoresis anti-opening fixture is tightly snapped to the body 10 during electrophoresis, preventing loosening due to shaking; the intermediate angle (e.g., 30°) is suitable for most conventional models (e.g., mid-size cars, SUVs), which can achieve quick alignment and installation through a reasonable opening width, balancing efficiency and stability; in a larger angle range (e.g., 31° to 35°), the opening of the first groove 110 is relatively large, suitable for models with an outwardly wide side door frame 11 of the body 10 and a deeper snap-fit position (e.g., large SUVs), which facilitates quick installation by operators and reduces alignment time. The included angle α covers a continuous value from 25° to 35°, taking into account the different needs of different vehicle models for snap-fit stability and ease of operation. This enables the first limiting component 100 to achieve reliable limiting and efficient installation in various body structures 10, further optimizing the actual application effect of the door electrophoresis anti-opening fixture.
[0053] In some embodiments, such as Figure 5 As shown, the second limiting member 200 includes a third connecting segment 220, a second bending segment 240, and a fourth connecting segment 230 connected in sequence. The third connecting segment 220, the second bending segment 240, and the fourth connecting segment 230 form a second groove 210. The shape of the second groove 210 is adapted to the door lock stop 21, and the door 20 is fixed at a specific opening degree by a snap-fit method, thereby restricting the movement of the door 20.
[0054] In this design, the end of the third connecting segment 220 furthest from the second bending segment 240 is connected to the connector 300, which connects the second limiting member 200 and the first limiting member 100, thus enabling force transmission between them. When the door 20 is subjected to an external force, the first limiting member 100 transmits the constraint force to the second limiting member 200 through the connector 300. The two work together to constrain the opening degree of the door 20.
[0055] The end of the fourth connecting segment 230 away from the second bending segment 240 is connected to the third limiting member 400. The other end of the third limiting member 400 extends towards the sheet metal 22 of the door 20 and abuts against it, forming a double limiting with the engagement with the second groove 210. The second limiting member 200 engages with the door 20 through the second groove 210, and the third limiting member 400 abuts against the sheet metal 22 of the door 20 with its end. The two work together to restrict the door 20 from different directions, limiting the displacement of the door 20 in multiple dimensions, ensuring the stability of the door 20 opening during the electrophoresis process, and preventing the door 20 from colliding or shifting due to shaking.
[0056] It should be noted that, as Figure 1 As shown, the second bending segment 240 is arc-shaped with a radius of R2, satisfying 2mm≤R2≤3mm. That is, the radius R2 of the second bending segment 240 can be any value from 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, and 3.0mm, or any value within a range of any two values. The second bending segment 240 effectively alleviates the stress concentration problem when the second limiting member 200 engages with the door lock stop 21, protecting the door electrophoretic anti-opening fixture from damage and preventing scratches on the door 20 surface. Simultaneously, the 2mm-3mm radius standard enhances the adaptability of the door electrophoretic anti-opening fixture to the contours of different vehicle models' door lock stops 21. Regardless of the shape of the lock stop, the second bending segment 240 can reliably engage, ensuring the stability of the fixture's restriction on the opening degree of the door 20.
[0057] In addition, such as Figure 1 As shown, there is an included angle b between the third connecting segment 220 and the fourth connecting segment 230, satisfying 35°≤b≤45°. That is, the included angle b can be any angle among 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, and 45°, or any range between any two angles. This angle range is mechanically optimized to make the second limiting member 200 form a stable snap-fit structure: in the smaller angle range (35° to 39°), the opening of the second groove 210 is smaller, resulting in a stronger clamping force on the door lock stop 21, which is suitable for models with compact lock stop space and can effectively prevent the fixture from shaking; the middle angle of 40° is suitable for most conventional models, ensuring quick alignment during installation; the second groove 210 has a larger opening in the larger angle range (41° to 45°), which is suitable for models with deep lock stop positions or outwardly wide contours, facilitating quick installation and reducing alignment time. The range of the included angle b takes into account the needs of different vehicle models for snap-fit stability and ease of installation, thereby improving the adaptability and application efficiency of the second limiting component 200.
[0058] In some embodiments, the first limiting member 100, the second limiting member 200, the connecting member 300, and the third limiting member 400 of the electrophoretic anti-opening fixture for the vehicle door adopt an integral molding structure. This structure integrates the components into a seamless whole without splicing or assembly gaps through processes such as injection molding, stamping, or casting. The one-piece molding structure has several advantages: First, it significantly improves structural strength, eliminating weak points in traditional prefabricated structures and allowing mechanical force to be uniformly transmitted through a continuous material path. This effectively avoids limit failures caused by loose or broken parts, enhancing impact resistance and durability. Second, it greatly optimizes installation efficiency. No step-by-step assembly is required; operators only need to snap the first limiter 100 onto the side door frame 11 of the vehicle body 10, the second limiter 200 onto the door lock stop 21, and the third limiter 400 onto the sheet metal 22 of the door 20 in one go to complete the installation, without any tools. Third, it ensures uniform dimensional accuracy and adaptability. The process ensures that the relative positions of each component are fixed, avoiding deviations in door 20 opening control caused by assembly errors. Fourth, it significantly reduces maintenance costs. With no moving parts or detachable interfaces, it reduces maintenance issues such as loose bolts and lost parts. Worn parts can be directly replaced as a whole, reducing production line downtime and maintenance costs.
[0059] It should be noted that the one-piece molded structure of this door electrophoresis anti-opening fixture must be made of a material with a certain degree of elasticity, such as a mechanical spring. This type of material has good elastic deformation capability. During the engagement process between the door electrophoresis anti-opening fixture and the body 10 and door 20, appropriate elastic deformation can achieve a tight engagement with the engagement points, ensuring a stable connection. Simultaneously, it effectively buffers external impacts, preventing damage to components or surface scratches caused by rigid contact. Furthermore, the elastic material can absorb the vibration energy generated by the tank's movement during electrophoresis, reducing the relative displacement between the fixture and the body 10 and door 20, further improving limiting stability, ensuring the accuracy of door 20 opening control, and balancing structural strength and operational reliability.
[0060] In some embodiments, such as Figure 1 and Figure 5 As shown, this door electrophoresis anti-opening fixture also includes a mounting handle 500, which is connected to the end of the first connecting section 120 away from the first bending section 140. Specifically, the operator can quickly lift the door electrophoresis anti-opening fixture by holding the mounting handle 500, align the first groove 110 of the first limiting member 100 with the snap-fit position of the side door frame 11 of the vehicle body 10, and at the same time use the handle to apply force to control the snap-fit depth, avoiding the fixture tilting or incomplete snap-fit due to uneven force during manual operation. The position layout of the mounting handle 500 (connected to the end of the first connecting section 120) makes the center of gravity distribution of this door electrophoresis anti-opening fixture more balanced.
[0061] It should be noted that the first limiting component 100, the second limiting component 200, the connecting component 300, the third limiting component 400, and the mounting handle 500 adopt a one-piece molding structure. This structure integrates the various components into a seamless whole without splicing or assembly gaps through a one-time molding process, significantly improving the performance and practicality of this door electrophoretic anti-opening fixture.
[0062] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0063] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.
[0064] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. A door electrophoresis anti-opening fixture, characterized in that, include: The first limiting member (100) has a first groove (110) for accommodating the vehicle body (10); The second limiting member (200) has a second groove (210) for accommodating the door (20); The connector (300) is connected to the first limiting member (100) and the second limiting member (200) respectively; The first limiting member (100) includes a first connecting segment (120), a first bending segment (140), and a second connecting segment (130) connected in sequence. The first connecting segment (120), the first bending segment (140), and the second connecting segment (130) form the first groove (110). The end of the second connecting segment (130) away from the first bending segment (140) is connected to the connector (300). The second limiting member (200) includes a third connecting segment (220), a second bending segment (240), and a fourth connecting segment (230) connected in sequence. The third connecting segment (220), the second bending segment (240), and the fourth connecting segment (230) form the second groove (210). The end of the third connecting segment (220) away from the second bending segment (240) is connected to the connector (300).
2. The door electrophoresis anti-opening jig according to claim 1, characterized by, The first limiting member (100) protrudes from one side of the connector (300), and the second limiting member (200) protrudes from the side of the connector (300) away from the first limiting member (100); The opening of the first groove (110) is located on the side of the first limiting member (100) near the connector (300), and the opening of the second groove (210) is located on the side of the second limiting member (200) near the connector (300).
3. The anti-opening fixture for car doors via electrophoresis according to claim 2, characterized in that, It also includes a third limiting member (400), one end of which is connected to the second limiting member (200), and the other end of which extends in the opposite direction to the opening of the second groove (210) and abuts against the sheet metal (22) of the door (20).
4. The anti-opening fixture for car doors via electrophoresis according to claim 3, characterized in that, The first bending segment (140) is arc-shaped, and the radius of the first bending segment (140) is R1, which satisfies 3mm≤R1≤4mm.
5. The door electrophoresis anti-opening jig according to claim 3, characterized by There is an included angle α between the first connecting segment (120) and the second connecting segment (130), which satisfies 25°≤a≤35°.
6. The door electrophoresis anti-opening jig according to claim 3, characterized by The end of the fourth connecting segment (230) away from the second bending segment (240) is connected to the third limiting member (400).
7. The door electrophoresis anti-opening jig according to claim 6, characterized by The second bending segment (240) is arc-shaped, and the radius of the second bending segment (240) is R2, which satisfies 2mm≤R2≤3mm.
8. The door electrophoresis anti-opening jig according to claim 6, characterized by, There is an included angle b between the third limiting member (400) and the fourth connecting segment (230), satisfying 35°≤b≤45°.
9. The door electrophoresis anti-opening jig according to claim 6, characterized by, It also includes an installation handle (500) connected to the end of the first connecting segment (120) away from the first bent segment (140).