A tool for locking a vehicle floor

Abstract

The utility model relates to vehicle assembly technical field, specifically disclose a car bottom plate locking auxiliary tool for in the assembly process of car shell bottom plate and bearing clamp plate, limit locking nut from hexagon nut limit rotation groove falls off, it includes: tool bottom plate, elastic jacking module, including the floating board group that nut put piece groove is equipped with on the top surface, the alignment column for inserting the hole position in car shell bottom plate, the nut top rod that slides and extends into the nut put piece groove, and the elastic pre -tensioning piece for drive the floating board group relative tool bottom plate upward motion, wherein, when alignment column inserts the hole position in car shell bottom plate, nut put piece groove is aligned with hexagon nut limit rotation groove up and down. The car bottom plate locking auxiliary tool provided by the utility model can limit locking nut from downward hexagon nut limit rotation groove falls off in the assembly process of car shell bottom plate and bearing clamp plate, and further reduce the locking operation difficulty between bearing clamp plate and car shell bottom plate.

Description

Technical Field

[0001] This utility model relates to the field of vehicle assembly technology, and in particular to an auxiliary tool for locking the vehicle floor. Background Technology

[0002] In small electric or hand-pushed vehicles such as golf carts and smart transport vehicles, the wheel assembly mounting structure typically includes the following core components: a chassis base plate, a wheel bearing with its inner ring fitted onto the wheel axle, and a bearing clamp that works with the chassis base plate to clamp the outer ring of the wheel bearing from above and below.

[0003] To secure the bearing clamp, the side of the vehicle body base plate away from the bearing clamp is provided with a hexagonal nut rotation limiting groove for accommodating a lock nut; the bearing clamp plate is provided with bolt through holes aligned with the hexagonal nut rotation limiting groove. During assembly, the lock nut is typically placed into the hexagonal nut rotation limiting groove first, then the wheel bearing is placed on the vehicle body base plate, the bearing clamp plate is then placed on top, and finally, a lock bolt is passed through the bolt through hole and locked to the lock nut.

[0004] For ease of operation, the bearing clamp is usually positioned above the chassis floor during assembly. In this state, the hexagonal nut rotation limit groove opens downwards, and the locking nut inside will fall down by itself due to gravity, making it impossible to position stably. This makes it difficult to lock the locking bolts, greatly increasing the difficulty of locking the bearing clamp to the chassis floor.

[0005] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] One objective of this utility model is to provide an auxiliary tool for locking a vehicle floor, which can prevent the locking nut from falling out of the downward-facing hexagonal nut rotation limit groove during the assembly process of the vehicle floor and bearing clamp, thereby reducing the difficulty of locking the bearing clamp and the vehicle floor.

[0007] To achieve the above objectives, this utility model provides a vehicle floor locking auxiliary tool, used to prevent the locking nut from falling out of the downward-facing hexagonal nut rotation-limiting groove of the vehicle floor during the assembly process of the vehicle body floor and bearing clamp. The vehicle floor locking auxiliary tool includes:

[0008] Tool base plate;

[0009] An elastic lifting module is mounted on the tool base plate and includes a floating plate assembly that is slidably disposed relative to the tool base plate and has a nut slot on its top surface for inserting a locking nut; an alignment post mounted on the floating plate assembly and used to insert into a hole in the vehicle body base plate; a nut push rod that slides into the nut slot to support the locking nut upward; and an elastic preload member for driving the floating plate assembly to move upward relative to the tool base plate.

[0010] When the alignment post is inserted into the hole in the bottom plate of the vehicle body, the nut placement groove and the hexagonal nut rotation limiting groove are aligned vertically.

[0011] Optionally, the elastic lifting module further includes:

[0012] A module base plate is located below the floating plate assembly and is mounted on the tool base plate; wherein the lower end of the nut push rod is fixedly mounted on the module base plate.

[0013] Optionally, the module base plate and the tool base plate are detachably connected.

[0014] Optionally, the module base plate and the tool base plate are connected by fastener thread locking.

[0015] Optionally, the tool base plate is made of iron, and the bottom of the module base plate is provided with a magnet for magnetic connection with the tool base plate.

[0016] Optionally, the floating plate assembly includes a lifting plate located above the elastic pretensioner and a nut positioning block fixed to the top surface of the lifting plate;

[0017] The nut placement groove extends downward from the top surface of the nut positioning block and penetrates the lifting plate; the upper end of the nut push rod extends upward from the bottom plate of the module, passes through the lifting plate, and then extends into the nut positioning block.

[0018] The alignment column is installed on the lifting plate, and the diameter of the alignment column gradually decreases from top to bottom.

[0019] Optional, also includes:

[0020] A vertical guide post, the lower end of which is fixedly connected to the module base plate, and the upper end of which passes through the elastic pretensioner and then slides through the lifting plate;

[0021] A limiting ring is fixed to the upper end of the vertical guide post to restrict the lifting plate from sliding upwards and disengaging from the vertical guide post.

[0022] Optionally, when the top surface of the lifting plate abuts against the bottom surface of the limiting ring, the height of the top surface of the nut push rod is lower than the height of the groove of the nut placement slot.

[0023] Optionally, the vertical distance between the top surface of the nut push rod and the opening of the nut placement groove is less than or equal to the axial dimension of the locking nut.

[0024] Optionally, the tool base plate is further provided with several detachable contour support plates for supporting the vehicle body base plate upwards.

[0025] The beneficial effects of this utility model are as follows: It provides an auxiliary tool for locking the vehicle floor, which, during the working process:

[0026] The elastic preload usually keeps the floating plate assembly in a high position. The assembly worker can first put the locking nut into the nut slot.

[0027] Then, place the car body bottom plate on top of the car body bottom plate locking auxiliary tool, and achieve vertical alignment by inserting the alignment post into the holes of the car body bottom plate. At this time, the nut placement slot and the hexagonal nut rotation limiting slot of the car body bottom plate are aligned vertically.

[0028] When the body panel is pressed down, the body panel pushes the floating plate assembly to slide downward against the elastic preload, while the nut push rod moves upward relative to the fixed position, thereby smoothly pushing the locking nut into the downward hexagonal nut limit groove, effectively preventing the locking nut from falling off when the groove is facing downward.

[0029] After that, workers can install the wheel bearings and bearing plates in sequence, and use locking bolts to secure them.

[0030] Therefore, the vehicle floor locking auxiliary tool provided by this utility model can prevent the locking nut from falling out of the downward-facing hexagonal nut rotation limit groove during the assembly process of the vehicle body floor plate and the bearing clamp plate, thereby reducing the difficulty of locking the bearing clamp plate and the vehicle body floor plate. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the structure provided in the embodiment, showing the vehicle body floor plate being pressed onto the vehicle floor plate locking auxiliary tool;

[0033] Figure 2A cross-sectional schematic diagram of the vehicle body floor plate being pressed onto the vehicle floor plate locking auxiliary tool provided in the embodiment;

[0034] Figure 3 This is a schematic diagram of the structure of the vehicle floor locking auxiliary tool provided in the embodiment.

[0035] In the picture:

[0036] 100. Auxiliary tools for securing the vehicle floor;

[0037] 200, Body base plate; 200a, Hexagonal nut rotation limit groove; 200b, Hole position;

[0038] 300. Lock nut;

[0039] 1. Tool base plate;

[0040] 2. Flexible lifting module;

[0041] 201. Floating plate assembly; 2011. Lifting plate; 2012. Nut positioning block; 2012a. Nut placement slot;

[0042] 202. Alignment column;

[0043] 203. Nut push rod;

[0044] 204. Elastic preload;

[0045] 205. Module base plate;

[0046] 206. Vertical guide post;

[0047] 207. Limiting ring;

[0048] 3. Contouring support plate. Detailed Implementation

[0049] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0050] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0051] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0052] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0053] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0054] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0055] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0056] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0057] See Figures 1-3 This embodiment provides a vehicle floor locking auxiliary tool 100, which is used to prevent the locking nut 300 from falling out of the hexagonal nut rotation limiting groove 200a facing downward on the vehicle floor 200 during the assembly process of the vehicle body floor 200 and the bearing clamp.

[0058] Specifically, the undercarriage locking auxiliary tool 100 includes:

[0059] Tool base plate 1;

[0060] The elastic lifting module 2 is mounted on the tool base plate 1 and includes a floating plate assembly 201 that is slidably disposed relative to the tool base plate 1 and has a nut placement groove 2012a on its top surface for inserting a locking nut 300; an alignment post 202 mounted on the floating plate assembly 201 and used to insert into a hole 200b in the vehicle body base plate 200; a nut push rod 203 that slides into the nut placement groove 2012a to support the locking nut 300 upward; and an elastic preload member 204 for driving the floating plate assembly 201 to move upward relative to the tool base plate 1.

[0061] When the alignment post 202 is inserted into the hole 200b of the vehicle body bottom plate 200, the nut placement groove 2012a is vertically aligned with the hexagonal nut rotation limiting groove 200a.

[0062] It should be noted that the hole 200b into which the alignment post 202 is inserted can be a positioning hole specifically designed for the alignment post 202, or it can be some process holes or mounting holes that already exist on the chassis floor 200.

[0063] Tool base plate 1 serves as the base of the entire device, providing a stable support platform during operation:

[0064] The elastic preload 204 usually keeps the floating plate assembly 201 in a high position. The assembly worker can first put the locking nut 300 into the nut placement slot 2012a.

[0065] Subsequently, the car body base plate 200 is placed above the car body base plate locking auxiliary tool 100, and the upper and lower alignment is achieved by the upper and lower insertion of the alignment post 202 and the hole 200b of the car body base plate 200. At this time, the nut placement groove 2012a is aligned with the hexagonal nut rotation limiting groove 200a of the car body base plate 200.

[0066] When the body shell bottom plate 200 is pressed down, the body shell bottom plate 200 pushes the floating plate group 201 to slide down against the elastic preload, while the nut push rod 203 moves upward relative to the fixed position, thereby smoothly pushing the locking nut 300 into the descending hexagonal nut limit groove 200a, effectively preventing the locking nut 300 from falling off when the groove is facing down.

[0067] Afterward, workers can install the wheel bearings and bearing plates in sequence, and then use locking bolts to secure them. This process, through the coordination between the various components, solves the problem of the locking nut 300 easily falling off under gravity, significantly reducing assembly difficulty and improving work efficiency.

[0068] In this embodiment, the elastic lifting module 2 further includes a module base plate 205. The module base plate 205 is located below the floating plate group 201 and is mounted on the tool base plate 1; wherein, the lower end of the nut push rod 203 is mounted and fixed on the module base plate 205. The module base plate 205 is located below the floating plate group 201 and fixed on the tool base plate 1, and the lower end of the nut push rod 203 is mounted and fixed on the module base plate 205. This structure makes the module base plate 205 an independent base for the elastic lifting module 2, enhancing the overall rigidity; after the nut push rod 203 is fixed to the module base plate 205, when the floating plate group 201 moves downward, the nut push rod 203 can maintain an absolutely stable position, thereby ensuring that the lifting action of the locking nut 300 is accurate and reliable, avoiding deviation or jamming during the lifting process, and improving the repeatability and reliability of the tool.

[0069] Furthermore, the module base plate 205 is detachably connected to the tool base plate 1. This detachable connection allows the module base plate 205 to be quickly removed from the tool base plate 1 as needed, facilitating routine maintenance, cleaning, or replacement of worn parts. The specific implementation of the detachable connection can be varied; for example, the module base plate 205 and the tool base plate 1 can be connected via fastener threaded locking, snap-fit ​​connection, or magnetic connection, providing flexibility for adapting the tool to different working scenarios.

[0070] Optionally, when magnetically connected, the tool base plate 1 is made of iron, and the bottom of the module base plate 205 is provided with a magnet for magnetically connecting with the tool base plate 1. Because the iron plate is magnetically conductive and has a large area, the magnetic connection allows the module base plate 205 to be quickly attached to any position on the tool base plate 1, achieving temporary fixation without additional positioning components. This is particularly suitable for assembly scenarios requiring frequent movement or adjustment of workstations, greatly improving the convenience and adaptability of the tool.

[0071] In this embodiment, the floating plate assembly 201 includes a lifting plate 2011 located above the elastic pretensioner 204, and a nut positioning block 2012 installed and fixed on the top surface of the lifting plate 2011;

[0072] The nut placement groove 2012a extends downward from the top surface of the nut positioning block 2012 to penetrate the lifting plate 2011, forming a continuous receiving channel; the upper end of the nut push rod 203 extends upward from the module bottom plate 205 to pass through the lifting plate 2011 and then extends into the nut positioning block 2012.

[0073] The alignment post 202 is mounted on the lifting plate 2011, and the diameter of the alignment post 202 gradually decreases from top to bottom to reduce the difficulty of aligning the alignment post 202 and the hole 200b, thereby improving the smoothness of insertion. Furthermore, the elastic preload 204 is a compression spring.

[0074] This split structure allows the nut positioning block 2012 to be specially manufactured from wear-resistant materials to withstand the repeated insertion and ejection of the locking nut 300, while the lifting plate 2011 can focus on providing a sliding guide function, achieving functional modularity and facilitating processing and maintenance. When the lifting plate 2011 slides up and down under the action of the elastic preload 204, the nut positioning block 2012 moves accordingly, and the through-designed nut placement groove 2012a ensures that the transport path of the locking nut 300 is always aligned with the fixed nut push rod 203, guaranteeing a smooth and precise lifting process.

[0075] Optionally, the undercarriage locking auxiliary tool 100 also includes:

[0076] A vertical guide post 206, the lower end of which is fixedly connected to the module base plate 205, and the upper end of which passes through the elastic pretensioner 204 and then slides through the lifting plate 2011;

[0077] A limiting ring 207 is fixed to the upper end of the vertical guide post 206 to restrict the lifting plate 2011 from sliding upward until it disengages from the vertical guide post 206.

[0078] The lower end of the vertical guide post 206 is fixedly connected to the module base plate 205, and the upper end passes through the elastic preload 204 and the lifting plate 2011 in sequence, providing precise vertical guidance for the up-and-down sliding of the lifting plate 2011, effectively preventing the lifting plate 2011 from tilting or jamming during movement. The limiting ring 207 is fixed to the upper end of the vertical guide post 206. Its function is to limit the extreme position of the upward sliding of the lifting plate 2011, preventing it from accidentally detaching from the vertical guide post 206, thus enhancing the safety of tool operation. The elastic preload 204 is sleeved on the vertical guide post 206 and acts between the module base plate 205 and the lifting plate 2011 under compression. Its preload force is smoothly transmitted through the guidance of the vertical guide post 206, ensuring that the floating plate assembly 201 can smoothly return to the high position.

[0079] Optionally, when the top surface of the lifting plate 2011 abuts against the bottom surface of the limiting ring 207 (i.e., the floating plate assembly 201 is at its highest position), the height of the top surface of the nut push rod 203 is lower than the height of the opening of the nut placement groove 2012a. This dimensional relationship ensures that when the locking nut 300 is initially placed, the lower part of the locking nut 300 can fall into and lie stably in the nut placement groove 2012a, rather than being prematurely and completely lifted up by the nut push rod 203, thereby facilitating the worker's placement operation and ensuring the accurate initial positioning of the locking nut 300.

[0080] Furthermore, the vertical distance between the top surface of the nut push rod 203 and the opening of the nut placement groove 2012a is less than or equal to the axial dimension of the locking nut 300. This design ensures that when the floating plate assembly 201 is pressed down by the vehicle body bottom plate 200 and the nut placement groove 2012a descends to align with the hexagonal nut rotation limiting groove 200a, the nut push rod 203 can move upward a sufficient distance to completely and reliably push the locking nut 300 into the depth of the hexagonal nut rotation limiting groove 200a. This avoids the risk that the locking nut 300 may not be fully in place or may get stuck in the groove due to insufficient lifting stroke, thus ensuring a high first-time assembly success rate.

[0081] In this embodiment, the tool base plate 1 is further provided with several detachable contoured support plates 3 for supporting the car body base plate 200 upwards. The upper surface shape of these contoured support plates 3 matches the local lower contour of the car body base plate 200, and is used to support the car body base plate 200 from below during assembly. First, the contoured support plates 3 can provide more stable support, disperse downward pressure, and prevent the thin-walled car body base plate 200 from deforming due to excessive local stress. Second, the contoured design allows the car body base plate 200 to be quickly and accurately positioned at a predetermined height, working in conjunction with the alignment post 202 to further improve the accuracy and efficiency of assembly alignment. The detachable connection method allows a set of tool base plates 1 to be adapted to various models of car body base plates 200 by replacing the contoured support plates 3 of different shapes, significantly enhancing the versatility and application range of the tool.

[0082] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A vehicle floor locking auxiliary tool, used to prevent a locking nut (300) from falling out of a downward-facing hexagonal nut rotation-limiting groove (200a) in the vehicle floor (200) during the assembly of the vehicle body floor (200) and the bearing clamp, characterized in that, include: Tool base plate (1); The elastic lifting module (2) is installed on the tool base plate (1) and includes a floating plate assembly (201) that slides up and down relative to the tool base plate (1) and has a nut placement groove (2012a) on its top surface for inserting a locking nut (300); an alignment post (202) installed on the floating plate assembly (201) and used to insert into a hole (200b) in the car body base plate (200); a nut push rod (203) that slides into the nut placement groove (2012a) to support the locking nut (300) upward; and an elastic preload member (204) for driving the floating plate assembly (201) to move upward relative to the tool base plate (1). When the alignment post (202) is inserted into the hole (200b) of the vehicle body bottom plate (200), the nut placement groove (2012a) is vertically aligned with the hexagonal nut rotation limiting groove (200a).

2. The vehicle floor locking auxiliary tool according to claim 1, characterized in that, The elastic lifting module (2) also includes: The module base plate (205) is located below the floating plate group (201) and is installed on the tool base plate (1); wherein the lower end of the nut push rod (203) is installed and fixed on the module base plate (205).

3. The vehicle floor locking auxiliary tool according to claim 2, characterized in that, The module base plate (205) and the tool base plate (1) are detachably connected.

4. The vehicle floor locking auxiliary tool according to claim 3, characterized in that, The module base plate (205) and the tool base plate (1) are connected by fastener thread locking.

5. The vehicle floor locking auxiliary tool according to claim 3, characterized in that, The tool base plate (1) is made of iron, and the bottom of the module base plate (205) is provided with a magnet for magnetic connection with the tool base plate (1).

6. The vehicle floor locking auxiliary tool according to claim 2, characterized in that, The floating plate assembly (201) includes a lifting plate (2011) located above the elastic pretensioner (204) and a nut positioning block (2012) installed and fixed on the top surface of the lifting plate (2011). The nut placement groove (2012a) extends downward from the top surface of the nut positioning block (2012) to penetrate the lifting plate (2011); the upper end of the nut push rod (203) extends upward from the module bottom plate (205) to pass through the lifting plate (2011) and then extends into the nut positioning block (2012); The alignment post (202) is installed on the lifting plate (2011), and the diameter of the alignment post (202) gradually decreases from top to bottom.

7. The vehicle floor locking auxiliary tool according to claim 6, characterized in that, Also includes: A vertical guide post (206) is fixedly connected to the module base plate (205) at its lower end, and the upper end of the vertical guide post (206) slides through the elastic pretensioner (204) and then through the lifting plate (2011). A limiting ring (207) is fixed to the upper end of the vertical guide post (206) to restrict the lifting plate (2011) from sliding upward to disengage from the vertical guide post (206).

8. The vehicle floor locking auxiliary tool according to claim 7, characterized in that, When the top surface of the lifting plate (2011) abuts against the bottom surface of the limiting ring (207), the height of the top surface of the nut push rod (203) is lower than the height of the groove of the nut placement groove (2012a).

9. The vehicle floor locking auxiliary tool according to claim 8, characterized in that, The vertical distance between the top surface of the nut push rod (203) and the opening of the nut placement groove (2012a) is less than or equal to the axial dimension of the locking nut (300).

10. The vehicle floor locking auxiliary tool according to claim 1, characterized in that, The tool base plate (1) is also provided with several detachable contour support plates (3) for supporting the vehicle body base plate (200) upwards.

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