Positioning tool for assembling open wagon side door anti-opening device
By designing a positioning fixture that includes multiple abutment parts, the assembly process of the lock and support seat of the anti-opening device for the side door of the C70E open wagon is simplified, solving the problems of cumbersome operation and low efficiency in the existing technology, and realizing efficient positioning and welding operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRRC YANGTZE CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-21
AI Technical Summary
In the existing technology, the assembly process of the anti-opening device for the side door of the C70E open wagon is cumbersome and inefficient. In particular, the welding and fixing operation of the lock and the support is complicated, resulting in unsatisfactory assembly efficiency.
A positioning fixture for assembling a convertible side door anti-opening device is provided, including first, second, third and fourth abutment members, which abut against different sides of the support base and the lock, respectively. The precise positioning of the support base and the lock is achieved by the arrangement of these abutment members, simplifying the assembly operation.
It greatly simplifies the assembly and positioning of locks and support bases, improves assembly efficiency, reduces labor intensity, and increases assembly and welding efficiency.
Smart Images
Figure CN224527053U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of railway open wagon technology, and particularly relates to a positioning tool for assembling an anti-opening device for the side door of an open wagon. Background Technology
[0002] The C70E open wagon, a widely used general-purpose open wagon in my country's railway freight sector, features a body constructed from Q450NQR1 high-strength weathering steel with an all-steel welded structure, possessing excellent corrosion resistance and load-bearing capacity. The side walls employ a plate-column design, with end walls composed of welded horizontal strips and corner posts. Side doors and a lower side door are provided on both sides to meet the needs of loading and unloading bulk cargo. The reliability of the lower side door's anti-opening mechanism directly affects the vehicle's transport safety, and the welding and fixing of the lock to the support base is a crucial step in the assembly of these components.
[0003] The assembly of the lock and the support base mainly relies on the traditional marking and positioning process. The specific process is as follows: the positioning lines are manually measured and marked on the top surface of the support base, the lock is placed on the top surface of the support base, and the position of the lock is adjusted according to the marking lines. Finally, it is fixed by welding. However, the marking and alignment operations are cumbersome, and the assembly and welding efficiency is not ideal. Summary of the Invention
[0004] This application provides a positioning fixture for assembling a side door anti-opening device for open wagons, aiming to at least partially solve the technical problems of cumbersome and inefficient assembly operations for such devices. Therefore,
[0005] One aspect of this application provides a positioning fixture for assembling a convertible side door anti-opening device, used to vertically stack and position locks on a support base; comprising:
[0006] The first abutting member has a first abutting portion, and the first abutting portion is configured to abut against a first side surface of the support base in the length direction;
[0007] The second abutment is disposed on the same side as the first abutment portion. The second abutment has a second abutment portion, and the second abutment portion is configured to abut against a second side surface of the support base in the width direction.
[0008] The third abutment is disposed on the side opposite to the second abutment, where the first abutment is located. The third abutment has a third abutment and is configured to abut against a third side surface in the width direction of the lock. The second side surface and the third side surface are located on opposite sides of the width direction of the lock.
[0009] A fourth abutment is disposed between the first abutment, the second abutment, and the third abutment. The fourth abutment has a fourth abutment portion on the side away from the first abutment, and the fourth abutment portion is configured to abut against a fourth side surface in the length direction of the lock. The fourth side surface and the first side surface are located on the same side in the length direction of the lock.
[0010] In some embodiments, the fourth abutment further includes a first pressing portion, which is located between the first abutment and the fourth abutment in the vertical direction, and the first pressing portion is configured to abut against the top surface of the support.
[0011] In some embodiments, the third abutment further includes a second pressing portion, which is located below the third abutment in the vertical direction and is configured to abut against the top surface of the support.
[0012] In some embodiments, the first abutment, the second abutment, the third abutment, or the fourth abutment is provided with a handle.
[0013] In some embodiments, the third abutment is rotatably connected to the first abutment.
[0014] In some embodiments, the deflection direction of the third abutment is in the vertical direction.
[0015] In some embodiments, the positioning fixture for assembling the convertible side door anti-opening device further includes a pre-compression mechanism connected between the third abutment and the first abutment, and the pre-compression mechanism has a vertically downward component in the pre-compression force so that the third abutment elastically presses against the support seat.
[0016] In some embodiments, the pre-compression mechanism includes:
[0017] The first bushing is disposed on the first abutment member;
[0018] The second bushing is disposed on the third abutment member, and the second bushing is coaxially disposed with the first bushing;
[0019] A pin is fitted inside the first bushing and the second bushing;
[0020] A torsion spring is sleeved on the pin, with its two torsion arms abutting against the first abutting member and the third abutting member respectively. The elastic pressure direction of the torsion spring is configured to drive the third abutting member to press against the support seat.
[0021] In some embodiments, the second abutment, the third abutment, and the fourth abutment are respectively connected to the first abutment.
[0022] In some embodiments, the positioning fixture for assembling the anti-opening device of the convertible side door further includes a base plate, on which the first abutment and the second abutment are disposed.
[0023] The embodiments of this application have at least the following beneficial effects:
[0024] The positioning fixture for assembling the anti-opening device for the side door of a convertible provided in this application includes a first abutment, a second abutment, a third abutment, and a fourth abutment. The first abutment has a first abutment portion, which is configured to abut against a first side surface of the support in the length direction. The second abutment is disposed on the same side as the first abutment portion, and has a second abutment portion, which is configured to abut against a second side surface of the support in the width direction. The third abutment is disposed opposite to the second abutment on the same side as the first abutment portion. The third abutment member has a third abutment portion, and the third abutment portion is configured to abut against a third side surface in the width direction of the lock, wherein the second side surface and the third side surface are located on opposite sides of the width direction of the lock; the fourth abutment member is disposed between the first abutment member, the second abutment member and the third abutment member, wherein the fourth abutment member has a fourth abutment portion on the side away from the first abutment member, and the fourth abutment portion is configured to abut against a fourth side surface in the length direction of the lock, wherein the fourth side surface and the first side surface are located on the same side of the length direction of the lock.
[0025] Specifically, for vertically stacked support bases and locks, the arrangement of the first, second, third, and fourth abutments allows the first and second abutments to position the support base, and the third and fourth abutments to position the lock. This enables the positioning of the relative positions of the lock and the support base, greatly simplifying the assembly and positioning operation and improving assembly efficiency. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 A schematic diagram of the positioning fixture for assembling the anti-opening device for the open side door of a convertible is shown in an embodiment of this application;
[0028] Figure 2 It shows Figure 1 A schematic diagram showing the fit between the positioning fixture and the support base;
[0029] Figure 3 It shows Figure 1 A schematic diagram showing the interaction between the positioning fixture and the lock.
[0030] Figure 4 It shows Figure 1 A top view of the positioning fixture in the image;
[0031] Figure 5 It shows Figure 1 The main view of the positioning fixture in the middle;
[0032] Figure 6 It shows Figure 1 A schematic diagram showing the coordination between the positioning fixture, support base, and lock.
[0033] Figure label:
[0034] 1-First abutting component, 11-First abutting part;
[0035] 2-Second abutting component, 21-Second abutting part;
[0036] 3-Third abutment, 31-Third abutment part, 32-Second pressing part, 33-Handle;
[0037] 4-Fourth abutment, 41-Fourth abutment part, 42-First pressing part;
[0038] 5-Handle;
[0039] 6-Preload mechanism, 61-First bushing, 62-Second bushing, 63-Pin, 64-Torsion spring;
[0040] 7-Base plate;
[0041] 8-Support base, 81-First side surface, 82-Second side surface, 83-Top surface;
[0042] 9-Lock, 91-Third side, 92-Fourth side. Detailed Implementation
[0043] 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 the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0044] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0045] This application is described below with reference to the accompanying drawings and specific embodiments:
[0046] The anti-opening device for the side door of the C70E open wagon consists of stacked support bases and locks. During assembly, the locks are usually placed directly on top of the support bases and welded along the designated positions. It is usually necessary to mark lines on the top surface of the support bases beforehand to guide positioning. However, marking and alignment operations typically require manual pushing, which is cumbersome, labor-intensive, and results in unsatisfactory assembly and welding efficiency.
[0047] Therefore, this application provides a positioning tool for assembling a side door anti-opening device for open wagons, which aims to solve, at least to some extent, the technical problems of cumbersome and inefficient assembly operations of the side door anti-opening device for open wagons.
[0048] See Figure 1 , Figure 2 , Figure 3 and Figure 6 In some embodiments, the positioning fixture for assembling the anti-opening device of the convertible side door is used to stack and position the lock 9 on the support seat 8 in the vertical direction Z; and the specific structural setting of the fixture is used to abut and position the support seat 8 and the lock 9 respectively, thereby simplifying the positioning and assembly operation, reducing labor intensity and improving operation efficiency.
[0049] The support base 8 and the lock 9 are components with clearly defined length and width directions. In this embodiment, they are positioned by abutment based on a unified length direction X and width direction Y.
[0050] The positioning fixture for assembling the anti-opening device of the open vehicle side door includes: a first abutment 1, a second abutment 2, a third abutment 3, and a fourth abutment; the second abutment 2 and the third abutment 3 are arranged opposite each other on the same side of the first abutment 1, and the fourth abutment can be arranged between the first abutment 1, the second abutment 2, and the third abutment 3, that is, in the area enclosed by the first abutment 1, the second abutment 2, and the third abutment 3, thereby forming multiple abutment positions for abutting against the sides of the vertically stacked support base 8 and the lock 9 in the length direction X and width direction Y, respectively, to achieve positioning.
[0051] The first abutting member 1 has a first abutting part 11, which is disposed on the side of the first abutting member 1 near the second abutting member 2 and the third abutting member 3. The first abutting part 11 is configured to abut against the first side 81 of the support seat 8 in the length direction X, thereby realizing the positioning of the support seat 8 in the length direction X.
[0052] The second abutment 2 is provided with a second abutment part 21 on the side near the third abutment 3, and the second abutment part 21 is configured to abut against the second side surface 82 of the support 8 in the width direction Y; thereby realizing the positioning of the support 8 in the width direction Y.
[0053] That is, the support base 8 is reliably positioned by the first abutting part 11 and the second abutting part 21 abutting against and positioning the first side 81 and the second side 82 in the length direction X and width direction Y of the support base 8.
[0054] The third abutment 3 is provided with a third abutment part 31 on the side close to the second abutment 2, and the third abutment part 31 is configured to abut against the third side 91 in the width direction Y of the lock 9, and the second side 82 and the third side 91 are located on both sides of the width direction Y of the lock 9, thereby realizing the abutment positioning of the lock 9 in the width direction Y.
[0055] The fourth abutment 4 is higher than the support base 8 in the vertical direction, thereby avoiding interference with the positioning of the support base 8; and the fourth abutment 4 has a fourth abutment portion 41 on the side away from the first abutment 1, and the fourth abutment portion 41 is configured as a fourth side surface 92 in the length direction X of the lock 9, and the fourth side surface 92 and the first side surface 81 are located on the same side in the length direction X of the lock 9.
[0056] Considering that the support base 8 and the lock 9 are stacked in the vertical direction Z, there is a height difference in the vertical direction Z between the first side 81 and the fourth side 92 on the side closer to the first abutment 1 in the length direction X. Therefore, there is also a matching height difference between the fourth abutment part 41 and the first abutment part 11 in the vertical direction Z. Thus, the fourth abutment part 41 and the first abutment part 11 respectively abut against and position the lock 9 and the support base 8 in the length direction X.
[0057] That is, the lock 9 is reliably positioned by the third abutment part 31 and the fourth abutment part 41 abutting against the fourth side 92 and the third side 91 in the length direction X and width direction Y of the lock 9.
[0058] In other words, when assembling the support base 8 and the lock 9, the first abutment part 11, the second abutment part 21, the third abutment part 31 and the fourth abutment part 41 respectively abut against and position the first side 81 and the second side 82 of the support base 8 and the third side 91 and the fourth side 92 of the lock 9, thereby achieving precise positioning of their relative positions.
[0059] During assembly, the support base 8 can be pushed between the first abutment 1, the second abutment 2, and the third abutment 3, and the position of the support base 8 in the length direction X and the width direction Y can be further adjusted so that the first side 81 abuts against the first abutment 11 and the second side 82 abuts against the second abutment 21. Then, the lock 9 is pushed between the first abutment 1, the second abutment 2, and the third abutment 3, and the position of the support base 8 in the length direction X and the width direction Y can be further adjusted so that the third side 91 abuts against the third abutment 31 and the fourth side 92 abuts against the fourth abutment 41. This completes the positioning assembly, followed by welding fixation, which greatly improves the assembly positioning operation, reduces labor intensity, and increases operational efficiency.
[0060] In some embodiments, the fourth abutment 4 further includes a first pressing portion 42, which is located between the first abutment 11 and the fourth abutment 41 in the vertical direction Z, and the first pressing portion 42 is configured to abut against the top surface 83 of the support 8.
[0061] That is, the first pressing part 42 abuts against the top surface 83 of the support base 8, thereby stably pressing the support base 8 in the vertical direction Z, and cooperating with the first abutting part 11 and the second abutting part 21 to realize the three-dimensional positioning of the support base 8.
[0062] Generally, the first pressing part 42 can be set as the bottom surface of the fourth abutment 4.
[0063] In some embodiments, the third abutment 3 further includes a second pressing portion 32, which is located below the third abutment 3 in the vertical direction Z, and is configured to abut against the top surface 83 of the support 8.
[0064] That is, the second pressing part 32 abuts against the top surface 83 of the support base 8, thereby stably pressing the support base 8 in the vertical direction Z to improve positioning reliability.
[0065] Generally, the second pressing part 32 is the bottom surface of the third abutting member 3.
[0066] In some embodiments, a handle 5 is provided on the first abutment 1, the second abutment 2, the third abutment 3, or the fourth abutment 4 to facilitate transfer operations.
[0067] In some embodiments, in order to facilitate the movement of the support base 8 and the lock 9, the third abutment 3 can be deflected and connected to the first abutment 1, so that when the support base 8 and the lock 9 are moved, the third abutment 3 can be deflected to leave room for movement.
[0068] In some embodiments, the deflection direction of the third abutment 3 is in the vertical direction Z, that is, it can deflect upward or downward, so that the weight of the third abutment 3 can be used to press the support base 8 through the second pressing part 32 and stably place it on the top surface 83 of the support base 8, and ensure that the position of the third abutment 31 in the width direction X is stable.
[0069] See Figure 4 , Figure 5 and Figure 6 In some embodiments, the positioning fixture for assembling the anti-opening device of the convertible side door further includes a pre-pressing mechanism 6 connected between the third abutment 3 and the first abutment 1, and the pre-pressing force of the pre-pressing mechanism 6 has a vertically downward component so that the third abutment 3 elastically presses the support seat 8.
[0070] In other words, by configuring the pre-pressure direction of the pre-pressure mechanism 6, the third abutment 3 can press down on the support seat 8 to keep the position of the support seat 8 stable; it can also reduce the swing displacement of the third abutment 3 and keep the position stable, thereby ensuring the positional reliability of the lock 9.
[0071] In some embodiments, the preload mechanism 6 may adopt a structure based on elastic preload of an elastic element. Specifically, the preload mechanism 6 may include: a first bushing 61, a second bushing 62, a pin 63, and a torsion spring 64.
[0072] The first bushing 61 is disposed on the first abutment 1, the second bushing 62 is disposed on the third abutment 3, and the second bushing 62 is coaxially disposed with the first bushing 61. The pin 63 is embedded in the first bushing 61 and the second bushing 62, thereby realizing the hinge connection between the third abutment 3 and the first abutment 1.
[0073] The torsion spring 64 is sleeved on the pin 6, and the two torsion arms of the torsion spring 64 abut against the first abutment 1 and the third abutment 3 respectively. The elastic pressure direction of the torsion spring 64 is configured to drive the third abutment 3 to press against the support seat 8.
[0074] In other words, the torsion spring 64 is used to elastically press the third abutment 3 and simultaneously press the support seat 8.
[0075] In some embodiments, a handle 33 may be provided on the third abutment 3 to facilitate the deflection of the third abutment 3.
[0076] In some embodiments, the second abutment 2, the third abutment 3, and the fourth abutment 4 can be connected to the first abutment 1 as a whole to ensure the stability of the abutment operation.
[0077] In some embodiments, the positioning fixture for assembling the anti-opening device of the open vehicle side door further includes a base plate 7, on which the first abutment 1 and the second abutment 2 are disposed, thereby using the base plate 7 as a load-bearing foundation to stably place the first abutment 1 and the second abutment 2, and maintain the positional stability of the first abutment 1, the second abutment 2, the third abutment 3 and the fourth abutment 4.
[0078] In some embodiments, the first abutment 1, the second abutment 2, the third abutment 3, and the fourth abutment 4 can be configured as plates, thereby reducing weight to a certain extent and facilitating movement and operation.
[0079] In some embodiments, the corner areas of the plates of the second abutment 2 and the third abutment 3 can be set to a missing corner shape to facilitate observation and assembly welding and relocation operations.
[0080] In some embodiments, the corner area between the third abutment 3 and the fourth abutment 4 may also be provided as a missing corner to avoid mutual interference.
[0081] The embodiments of this application have at least the following beneficial effects:
[0082] The positioning fixture for assembling the anti-opening device for the side door of a convertible provided in this application includes a first abutment, a second abutment, a third abutment, and a fourth abutment. The first abutment has a first abutment portion, which is configured to abut against a first side surface of the support in the length direction. The second abutment is disposed on the same side as the first abutment portion, and has a second abutment portion, which is configured to abut against a second side surface of the support in the width direction. The third abutment is disposed opposite to the second abutment on the same side as the first abutment portion. The third abutment member has a third abutment portion, and the third abutment portion is configured to abut against a third side surface in the width direction of the lock, wherein the second side surface and the third side surface are located on opposite sides of the width direction of the lock; the fourth abutment member is disposed between the first abutment member, the second abutment member and the third abutment member, wherein the fourth abutment member has a fourth abutment portion on the side away from the first abutment member, and the fourth abutment portion is configured to abut against a fourth side surface in the length direction of the lock, wherein the fourth side surface and the first side surface are located on the same side of the length direction of the lock.
[0083] Specifically, for vertically stacked support bases and locks, the arrangement of the first, second, third, and fourth abutments allows the first and second abutments to position the support base, and the third and fourth abutments to position the lock. This enables the positioning of the relative positions of the lock and the support base, greatly simplifying the assembly and positioning operation and improving assembly efficiency.
[0084] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0085] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" 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 application and 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 application.
[0086] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0087] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0088] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0089] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0090] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0091] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A positioning fixture for assembling a side door anti-opening device for a convertible, used to vertically stack and position the lock on a support base; characterized in that, include: The first abutting member has a first abutting portion, and the first abutting portion is configured to abut against a first side surface of the support base in the length direction; The second abutment is disposed on the same side as the first abutment portion. The second abutment has a second abutment portion, and the second abutment portion is configured to abut against a second side surface of the support base in the width direction. The third abutment is disposed on the side opposite to the second abutment, where the first abutment is located. The third abutment has a third abutment and is configured to abut against a third side surface in the width direction of the lock. The second side surface and the third side surface are located on opposite sides of the width direction of the lock. A fourth abutment is disposed between the first abutment, the second abutment, and the third abutment. The fourth abutment has a fourth abutment portion on the side away from the first abutment, and the fourth abutment portion is configured to abut against a fourth side surface in the length direction of the lock. The fourth side surface and the first side surface are located on the same side in the length direction of the lock.
2. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in claim 1, characterized in that, The fourth abutment further includes a first pressing part, which is located between the first abutment and the fourth abutment in the vertical direction, and is configured to abut against the top surface of the support.
3. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in claim 1, characterized in that, The third abutment also includes a second pressing part, which is located below the third abutment in the vertical direction, and is configured to abut against the top surface of the support.
4. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in claim 1, characterized in that, The first, second, third, or fourth abutment is provided with a handle.
5. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in claim 1, characterized in that, The third abutment is rotatably connected to the first abutment.
6. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in claim 5, characterized in that, The deflection direction of the third abutment is in the vertical direction.
7. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in claim 6, characterized in that, The positioning fixture for assembling the anti-opening device for the open vehicle side door also includes a pre-compression mechanism connected between the third abutment and the first abutment, and the pre-compression mechanism has a vertically downward component in the pre-compression force so that the third abutment elastically presses the support seat.
8. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in claim 7, characterized in that, The pre-compression mechanism includes: The first bushing is disposed on the first abutment member; The second bushing is disposed on the third abutment member, and the second bushing is coaxially disposed with the first bushing; A pin is fitted inside the first bushing and the second bushing; A torsion spring is sleeved on the pin, with its two torsion arms abutting against the first abutting member and the third abutting member respectively. The elastic pressure direction of the torsion spring is configured to drive the third abutting member to press against the support seat.
9. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in any one of claims 1 to 8, characterized in that, The second abutment, the third abutment, and the fourth abutment are respectively connected to the first abutment.
10. The positioning fixture for assembling the anti-opening device for the side door of a convertible as described in any one of claims 1 to 8, characterized in that, The positioning fixture for assembling the anti-opening device for the open vehicle side door also includes a base plate, on which the first abutment and the second abutment are disposed.