Anti-loosening screw for locomotive

Abstract

The utility model belongs to the technical field of screws, and particularly relates to an anti-loosening screw for a locomotive, which comprises a screw and a plurality of first sliding grooves, the plurality of first sliding grooves are arranged on the peripheral side of the screw, sliding blocks are connected in the first sliding grooves in a sliding mode, and tension springs fixed with the inner walls of the first sliding grooves are fixedly connected on the sliding blocks. The second sliding groove is formed in the screw, a plurality of third sliding grooves are formed in the inner wall of the second sliding groove, the third sliding grooves are communicated with the first sliding grooves respectively, a sliding rod is connected into the third sliding grooves in a sliding mode, and a plurality of extrusion blocks are fixedly connected to the peripheral side of the sliding rod. The problems that in the prior art, large vibration can be generated on a screw, particularly on a high-speed driving road surface or a bumpy road surface, the vibration continuously acts on the screw to enable the screw to be slightly loosened, and as time goes on, loosening can be gradually accumulated, and consequently the screw is likely to be loosened are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screws, in particular to anti-loosening screws for motor vehicles. Background Art

[0002] Locomotive screws play a key role in fixing and connecting various parts of the locomotive. The material, size and shape of these screws vary according to specific application scenarios and requirements.

[0003] First of all, there are many choices of materials for locomotive screws, including stainless steel, carbon steel, alloy steel and copper. Stainless steel screws are widely used in the high-demand locomotive manufacturing field because of their corrosion resistance, beauty, non-magnetic and high temperature resistance. Carbon steel screws have higher strength and durability and are suitable for some low-demand locomotive parts. Alloy steel screws are a high-strength material produced by adding alloy elements to steel, suitable for scenarios that require higher strength. Copper screws are mainly used in special industries such as electronic equipment and have good electrical and thermal conductivity.

[0004] Secondly, the size and shape of locomotive screws are determined according to specific needs. For example, some screws may require a specific length, diameter or pitch to meet the connection requirements of different components. In addition, some screws may also require special shapes, such as cones, hexagons or special shapes, to adapt to specific installation environments and operating requirements.

[0005] During long-term operation of a locomotive, especially when driving at high speed or on bumpy roads, it will produce large vibrations, which will continuously act on the screws, causing them to loosen slightly. Over time, the looseness will gradually accumulate, causing the screws to loosen. In view of this, we propose anti-loosening locomotive screws. Utility Model Content

[0006] The utility model aims to provide a screw for anti-loosening motor vehicle to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides an anti-loosening motor vehicle screw, comprising:

[0008] A screw and a plurality of first slide grooves, wherein the plurality of first slide grooves are arranged on the peripheral side of the screw, a slider is slidably connected in the first slide groove, and a tension spring fixed to the inner wall of the first slide groove is fixedly connected to the slider;

[0009] A second slide groove, wherein the second slide groove is provided in the screw, a plurality of third slide grooves are provided on the inner wall of the second slide groove, and the plurality of third slide grooves are respectively connected with the plurality of first slide grooves, a slide rod is slidably connected in the third slide groove, a plurality of extrusion blocks are fixedly connected on the peripheral side of the slide rod, and the plurality of extrusion blocks are respectively located in the plurality of third slide grooves and slidably connected with the plurality of third slide grooves, and one end of the plurality of extrusion blocks is respectively in contact with the plurality of sliders;

[0010] A driving assembly is located inside the screw and is used to drive the slide bar to move.

[0011] Based on the above structure, by setting the first slide groove and the slider, it is ensured that the slider can slide in the first slide groove, by setting the second slide groove and the slide rod, by setting the third slide groove and the extrusion block, it is ensured that the extrusion block can slide in the third slide groove, and by setting the driving component, it is ensured that the user can drive the slide rod to move through the driving component, so that the slide rod drives multiple extrusion blocks to move, and when the multiple extrusion blocks move downward, one end of the multiple extrusion blocks will respectively squeeze the multiple slide blocks, so that one end of the multiple slide blocks will move along the multiple first slide grooves respectively, and when the multiple slide blocks move to a position where they cannot move, the multiple slide blocks can fix the screws in the mounting holes of the screws to prevent loosening, and by setting the tension springs, it is ensured that when the multiple extrusion blocks release the extrusion of the multiple slide blocks, the multiple slide blocks can be reset by the elastic force of the multiple tension springs respectively.

[0012] In the above technical solution, further, the driving component includes:

[0013] A threaded rod, wherein the threaded rod is threadedly connected in the sliding rod, a rotating rod is fixedly connected to the top of the threaded rod, and one end of the rotating rod passes through the inner wall of the second sliding groove and extends to the outside to be rotatably connected to the screw, and a slot is opened on the peripheral side of the rotating rod;

[0014] A fixing component is located in the screw and is used to fix the rotating rod.

[0015] In this technical solution, it is ensured that the screws will not be loosened due to the influence of external vibration.

[0016] In the above technical solution, further, the fixing assembly includes:

[0017] A fourth slide groove, the fourth slide groove is provided in the screw and is connected to the slot, a plug rod is slidably connected in the fourth slide groove, one end of the plug rod extends into the slot and is plugged into the slot, the other end of the plug rod is fixedly connected to a spring fixed to the inner wall of the fourth slide groove, and an extrusion groove is provided on the plug rod;

[0018] The fifth slide groove is arranged on the inner wall of the fourth slide groove and is connected to the outside. A pressing block is slidably connected in the fifth slide groove, and one end of the pressing block extends into the extrusion groove and is plugged into the extrusion groove.

[0019] In this technical solution, it is ensured that the rotating rod will not rotate due to external influences.

[0020] In the above technical solution, further, the bottom end of the pressing block is inclined.

[0021] In this technical solution, it is ensured that the pressing block can squeeze the extrusion groove.

[0022] In the above technical solution, further, one end of the extrusion block is arranged at an angle.

[0023] In this technical solution, it is ensured that one end of the extrusion block can extrude the slider.

[0024] In the above technical solution, further, the slider is in an "L" shape.

[0025] In this technical solution, it is ensured that the sliding block can only slide in the first sliding groove.

[0026] The beneficial effects of the utility model are:

[0027] 1. The anti-loosening locomotive screw ensures that the slider can slide in the first slot by providing a first slot and a slider, ensures that the slider can slide in the second slot by providing a second slot and a slide bar, ensures that the slide bar can slide in the second slot by providing a third slot and an extrusion block, ensures that the extrusion block can slide in the third slot by providing a driving component, ensures that the user can drive the slide bar to move by the driving component, and allows the slide bar to drive multiple extrusion blocks to move, when the multiple extrusion blocks move downward, one end of the multiple extrusion blocks will respectively squeeze the multiple sliders, so that one end of the multiple sliders moves along the multiple first slots respectively, when the multiple sliders move to a position where they cannot move, the multiple sliders can fix the screw in the mounting hole of the screw to prevent loosening, and ensures that when the multiple extrusion blocks release the extrusion of the multiple sliders by providing a tension spring, the multiple sliders can be reset by the elastic force of the multiple tension springs respectively, thereby solving the problem that the locomotive will generate large vibrations during long-term operation, especially when driving at high speed or on bumpy roads, and these vibrations will continuously act on the screws to cause them to loosen slightly. As time goes by, the looseness will gradually accumulate, resulting in the problem that the screws may become loose.

[0028] 2. The anti-loosening motor vehicle screws ensure that the user can fix the rotating rod in the screw through the fixing components and the slots so that it cannot move, and ensure that the rotating rod will not rotate due to external influences. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 This is one of the schematic diagrams of the internal structure of the screw of the utility model;

[0031] Figure 3 This is the second schematic diagram of the internal structure of the screw of the utility model;

[0032] Figure 4 Bit Figure 3 The enlarged structural diagram at A in the middle;

[0033] Figure 5 It is a schematic diagram of the overall structure of the pressing block of the utility model.

[0034] The symbols in the figure are:

[0035] 1. Screw; 2. First slide groove; 3. Sliding block; 4. Tension spring; 5. Second slide groove; 6. Third slide groove; 7. Sliding rod; 8. Extrusion block; 9. Threaded rod; 10. Rotating rod; 11. Slot; 12. Fourth slide groove; 13. Insert rod; 14. Spring; 15. Extrusion groove; 16. Fifth slide groove; 17. Pressing block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0037] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0039] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0040] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0041] Embodiment 1:

[0042] See also Figure 1 - Figure 5 As shown, this embodiment provides an anti-loosening screw for a motor vehicle, including:

[0043] A screw 1 and a plurality of first slide grooves 2, wherein the plurality of first slide grooves 2 are provided on the peripheral side of the screw 1, a slider 3 is slidably connected in the first slide groove 2, and a tension spring 4 fixed to the inner wall of the first slide groove 2 is fixedly connected to the slider 3;

[0044] A second slide groove 5 is provided in the screw 1, a plurality of third slide grooves 6 are provided on the inner wall of the second slide groove 5, and the plurality of third slide grooves 6 are respectively connected with the plurality of first slide grooves 2, a slide rod 7 is slidably connected in the third slide groove 6, a plurality of extrusion blocks 8 are fixedly connected on the peripheral side of the slide rod 7, and the plurality of extrusion blocks 8 are respectively located in the plurality of third slide grooves 6 and slidably connected with the plurality of third slide grooves 6, and one end of the plurality of extrusion blocks 8 is respectively in contact with the plurality of sliders 3;

[0045] A driving assembly is located inside the screw 1 and is used to drive the slide bar 7 to move.

[0046] Embodiment 2:

[0047] This embodiment provides an anti-loosening motor vehicle screw, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0048] A threaded rod 9, the threaded rod 9 is threadedly connected in the sliding rod 7, a rotating rod 10 is fixedly connected to the top of the threaded rod 9, and one end of the rotating rod 10 passes through the inner wall of the second sliding groove 5 and extends to the outside to be rotatably connected with the screw 1, and a slot 11 is opened on the peripheral side of the rotating rod 10;

[0049] The fixing component is located inside the screw 1 and is used to fix the rotating rod 10 .

[0050] When in use, the user turns the rotating rod 10 by hand to drive the rotating rod 10 to drive the threaded rod 9 to rotate in the sliding rod 7. When the threaded rod 9 rotates, the sliding rod 7 will be moved downward along the second sliding groove 5 by the action of the threaded rod 9, so that the sliding rod 7 drives multiple extrusion blocks 8 to move downward along multiple third sliding grooves 6 respectively. When the multiple extrusion blocks 8 move downward, the multiple extrusion blocks 8 will squeeze the multiple sliding blocks 3 respectively, so that one end of the multiple sliding blocks 3 moves toward the inner wall of the mounting hole along the multiple first sliding grooves 2 respectively, and the multiple sliding blocks 3 stretch the multiple tension springs 4 respectively. When the multiple sliding blocks 3 move to a position where they cannot move, the multiple sliding blocks 3 will be tightly squeezed on the inner wall of the mounting hole to ensure that the screw 1 will not be loosened due to external vibration.

[0051] Embodiment 3:

[0052] This embodiment provides an anti-loosening screw for a motor vehicle, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the fixing assembly includes:

[0053] A fourth slide groove 12 is provided in the screw 1 and communicated with the slot 11. A plug rod 13 is slidably connected in the fourth slide groove 12, and one end of the plug rod 13 extends into the slot 11 and is plugged into the slot 11. The other end of the plug rod 13 is fixedly connected to a spring 14 fixed to the inner wall of the fourth slide groove 12. An extrusion groove 15 is provided on the plug rod 13.

[0054] The fifth slide groove 16 is provided on the inner wall of the fourth slide groove 12 and communicated with the outside. A pressing block 17 is slidably connected in the fifth slide groove 16 , and one end of the pressing block 17 extends into the extrusion groove 15 and is plugged into and matched with the extrusion groove 15 .

[0055] Among them, when the user needs to rotate the rotating rod 10, the user presses the pressing block 17 with his hand, so that one end of the pressing block 17 squeezes the squeezing groove 15, so that one end of the insertion rod 13 enters the fourth sliding groove 12 from the slot 11, and the other end of the insertion rod 13 compresses the spring 14. At this time, the fixation of the rotating rod 10 is released. When the user needs to fix the rotating rod 10, the user releases the hand pressing the pressing block 17, so that one end of the insertion rod 13 is inserted into the slot 11 under the action of the rebound force of the spring 14, and the rotating rod 10 is fixed in the screw 1 and cannot move, ensuring that the rotating rod 10 will not rotate due to external influences.

[0056] Embodiment 4:

[0057] This embodiment provides an anti-loosening screw for a motor vehicle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the bottom end of the pressing block 17 is inclined.

[0058] Here, it is ensured that the pressing block 17 can press the pressing groove 15 .

[0059] Embodiment 5:

[0060] This embodiment provides an anti-loosening screw for a motor vehicle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: one end of the extrusion block 8 is inclined.

[0061] Here, it is ensured that one end of the extrusion block 8 can extrude the slider 3 .

[0062] Embodiment 6:

[0063] This embodiment provides an anti-loosening screw for a motor vehicle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the slider 3 is in an "L" shape.

[0064] Here, it is ensured that the slide block 3 can only slide in the first slide groove 2 .

[0065] When in use, the user installs the screw 1 into the mounting hole, and then the user presses the pressing block 17 by hand, so that one end of the pressing block 17 squeezes the squeezing groove 15, so that one end of the insertion rod 13 enters the fourth slide groove 12 from the slot 11, and the other end of the insertion rod 13 compresses the spring 14. At this time, the fixation of the rotating rod 10 is released, and then the user rotates the rotating rod 10 by hand to drive the rotating rod 10 to drive the threaded rod 9 to rotate in the sliding rod 7. When the threaded rod 9 rotates, the sliding rod 7 will be affected by the thread of the threaded rod 9 and move downward along the second slide groove 5, so that the sliding rod 7 drives multiple squeezing blocks 8 to move downward along multiple third slide grooves 6 respectively. When the multiple squeezing blocks 8 move downward, the multiple squeezing blocks 8 will squeeze multiple The slider 3 allows one end of the multiple sliders 3 to move along the multiple first slide grooves 2 toward the inner wall of the mounting hole, and the multiple sliders 3 stretch the multiple tension springs 4 respectively. When the multiple sliders 3 move to a position where they cannot move, the multiple sliders 3 will be tightly squeezed on the inner wall of the mounting hole to ensure that the screw 1 will not be loosened due to external vibrations. Among them, when the multiple sliders 3 move to a position where they cannot move, the slot 11 will be connected to the fourth slide groove 12. Then the user releases the hand pressing the pressing block 17, allowing one end of the insertion rod 13 to be inserted into the slot 11 under the action of the rebound force of the spring 14, fixing the rotating rod 10 in the screw 1 and preventing it from moving, ensuring that the rotating rod 10 will not rotate due to external influences.

[0066] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. Anti-loosening screws for motor vehicles, characterized in that: include: A screw (1) and a plurality of first slide grooves (2), wherein the plurality of first slide grooves (2) are arranged on the peripheral side of the screw (1), a slider (3) is slidably connected in the first slide groove (2), and a tension spring (4) fixed to the inner wall of the first slide groove (2) is fixedly connected to the slider (3); A second slide groove (5), wherein the second slide groove (5) is provided in the screw (1), a plurality of third slide grooves (6) are provided on the inner wall of the second slide groove (5), and the plurality of third slide grooves (6) are respectively connected to the plurality of first slide grooves (2), a slide rod (7) is slidably connected in the third slide groove (6), a plurality of extrusion blocks (8) are fixedly connected on the peripheral side of the slide rod (7), and the plurality of extrusion blocks (8) are respectively located in the plurality of third slide grooves (6) and slidably connected to the plurality of third slide grooves (6), and one end of the plurality of extrusion blocks (8) is respectively in contact with the plurality of sliders (3); A driving assembly is located in the screw (1) and is used to drive the slide rod (7) to move.

2. The anti-loosening screw for motor vehicles according to claim 1, characterized in that: The drive assembly comprises: A threaded rod (9), wherein the threaded rod (9) is threadedly connected in the sliding rod (7), a rotating rod (10) is fixedly connected to the top end of the threaded rod (9), and one end of the rotating rod (10) passes through the inner wall of the second sliding groove (5) and extends to the outside to be rotatably connected to the screw (1), and a slot (11) is provided on the peripheral side of the rotating rod (10); A fixing component is located inside the screw (1) and is used to fix the rotating rod (10).

3. The anti-loosening screw for motor vehicles according to claim 2, characterized in that: The fixing assembly comprises: A fourth slide groove (12), wherein the fourth slide groove (12) is provided in the screw (1) and is connected to the slot (11); a plug rod (13) is slidably connected in the fourth slide groove (12); one end of the plug rod (13) extends into the slot (11) and is plugged into the slot (11); the other end of the plug rod (13) is fixedly connected to a spring (14) fixed to the inner wall of the fourth slide groove (12); and an extrusion groove (15) is provided on the plug rod (13); A fifth slide groove (16), the fifth slide groove (16) is formed on the inner wall of the fourth slide groove (12) and is in communication with the outside, a pressing block (17) is slidably connected in the fifth slide groove (16), and one end of the pressing block (17) extends into the extrusion groove (15) and is plugged into the extrusion groove (15).

4. The anti-loosening screw for motor vehicles according to claim 3, characterized in that: The bottom end of the pressing block (17) is arranged in an inclined manner.

5. The anti-loosening screw for motor vehicles according to claim 1, characterized in that: One end of the extrusion block (8) is arranged in an inclined manner.

6. The anti-loosening screw for motor vehicles according to claim 1, characterized in that: The sliding block (3) is in an "L" shape.

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