Bolt with hole structure for train compartment

Abstract

The utility model relates to the technical field of bolts, and discloses a bolt with a hole structure for a train compartment, which comprises a hexagonal block, a clamp spring piece and a circular column, the bottom of the circular column is fixedly connected with a threaded column, the top of the circular column is fixedly connected with a limiting column, and the outer wall of the limiting column is fixedly connected with a plurality of limiting blocks. A clamping cylinder is fixedly connected to the top of the limiting column, an arc-shaped groove is formed in the top of the hexagonal block, the clamping reed is clamped with the clamping cylinder, a hole is formed in the front side of the outer wall of the threaded column, a gasket is fixedly connected to the bottom of the hexagonal block, and a wear-resisting buffering mechanism is arranged on the outer wall of the threaded column. According to the utility model, the clamping spring sheet and the damaged hexagonal block are taken down, the new hexagonal block is installed above the limiting column, the clamping spring sheet is clamped again to complete replacement, the weight is reduced through the hole, the light weight trend is adapted, the contact area is increased through the gasket, the bolt is convenient to replace, and overhaul and maintenance are completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field especially uses the bolt with hole structure of train carriage. BACKGROUND

[0002] In the modern railway transportation system, the bolt with hole structure of train carriage is a kind of important connecting component, this kind of bolt is applied to each part of train carriage, from the splicing of car body frame, equipment installation to interior decoration fixation, its hole structure design not only can reduce self weight, meet the development trend of train lightening, but also can realize the special function of threading and installing pin through the design of hole, meet the complex assembly and use demand in carriage on the basis of guaranteeing connecting strength.

[0003] The early bolt with hole structure of train carriage is mainly composed of ordinary screw rod and nut, and the structure is relatively simple, in the use process, the bolt is easy to loosen under the complex vibration environment of train operation, leading to the security risk of connecting part, to solve these problems, the existing bolt with hole structure of train carriage adopts special thread design to enhance friction in design, adds lock washer and other structures to prevent loosening, however, the existing bolt with hole structure still has some problems to be solved, in the process of daily maintenance and overhaul, when the tool is used to disassemble and fasten the outside of bolt, since the outside of bolt is usually smooth, and surface wear and corrosion may occur after long-term use, when the tool such as spanner is used to operate, surface slippage phenomenon is prone to occur, which makes the subsequent bolt cannot be effectively disassembled and fastened, not only affects the maintenance efficiency, but also potential threat to train operation safety due to the failure to replace the faulty bolt in time. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides the bolt with hole structure of train carriage, aims at improving the problem that the outside of bolt may appear wear and corrosion in prior art, leading to the failure to replace the faulty bolt in time.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: the bolt with hole structure of train carriage, including hexagonal block, snap spring piece and circular column, the bottom of circular column is fixedly connected with threaded column, the top of circular column is fixedly connected with limiting column, the outer wall of limiting column is fixedly connected with a plurality of limiting blocks, the top of limiting column is fixedly connected with clamping cylinder, the top of hexagonal block is provided with arc slot, the snap spring piece is clamped with clamping cylinder, the outer wall front side of threaded column is provided with hole, the bottom of hexagonal block is fixedly connected with gasket, the outer wall of threaded column is provided with wear-resistant buffer mechanism, the wear-resistant buffer mechanism is used to improve its buffering capacity.

[0006] As a further description of the above technical solutions:

[0007] The wear-resistant buffer mechanism comprises a nut, an inner wall of the nut is arranged on an outer wall of the threaded column, a threaded groove is formed in the inner wall of the nut, the inner wall of the threaded groove is threadedly connected with the outer wall of the threaded column, an extrusion piece is fixedly connected to the top end of the nut, a plurality of wear-resistant strips are fixedly connected to the top end of the nut, a plurality of buffer plates are fixedly connected to the top end of the hexagonal block, and a plurality of anti-skid strips are fixedly connected to the top end of the buffer plate.

[0008] As a further description of the above technical solutions:

[0009] A plurality of limiting strips are fixedly connected to the top end of the gasket, and a plurality of anti-skid grooves are formed in the bottom end of the gasket.

[0010] As a further description of the above technical solutions:

[0011] Limiting columns are fixedly connected to the inner wall of the clamping spring piece, and the inner wall of the clamping cylinder is smoothly processed.

[0012] As a further description of the above technical solutions:

[0013] An annular groove is formed in the top end of the hexagonal block, and an annular magnet is fixedly connected to the inner wall bottom of the annular groove.

[0014] As a further description of the above technical solutions:

[0015] A plurality of clamping notches are formed in the outer wall of the hexagonal block, and the clamping notches are equidistantly formed in the outer wall of the hexagonal block.

[0016] As a further description of the above technical solutions:

[0017] A plurality of driving notches are formed in the outer wall of the nut, and the driving notches are equidistantly formed in the outer wall of the nut.

[0018] As a further description of the above technical solutions:

[0019] The size of the inner wall of the clamping spring piece is consistent with the size of the inner wall of the clamping cylinder, and the size of the outer wall of the circular column is greater than the size of the outer wall of the threaded column.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、In the utility model, by taking down the clamping spring piece and the damaged hexagonal block, installing a new hexagonal block above the limiting column, re-clamping the clamping spring piece to complete replacement, reducing weight through the hole, adapting to the lightweight trend, realizing threading and pin installation functions, meeting the needs of carriage assembly, increasing the contact area of the gasket, facilitating bolt replacement, and completing maintenance.

[0022] 2、The utility model discloses a through the extrusion piece through the contact area of increase with the contact, realized the uniform distribution of stress, and the wear -resisting strip improved its wear -resisting performance, and the buffer board provided the shock attenuation effect, effectively reduced the bolt loosening phenomenon caused by vibration, and the antiskid strip strengthened the friction with the surface of contact, thereby further improved the anti -shock performance of bolt. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the perspective view of train compartment bolt with hole structure that the utility model provides;

[0024] Figure 2 It is the front view of train compartment bolt with hole structure that the utility model provides;

[0025] Figure 3 It is the plan view of train compartment bolt with hole structure that the utility model provides;

[0026] Figure 4 It is the section view of train compartment bolt nut block that the utility model provides;

[0027] Figure 5 It is the wear -resisting buffer mechanism schematic diagram of train compartment bolt with hole structure that the utility model provides.

[0028] Legend:

[0029] 1, hexagonal block;2, wear -resisting buffer mechanism;201, nut;202, extrusion piece;203, wear -resisting strip;204, buffer board;205, thread groove;206, antiskid strip;3, clamping spring piece;4, round column;5, threaded column;6, limit block;7, limit column;8, arc slot;9, clamping cylinder;10, hole;11, gasket;12, limit strip;13, antiskid groove;14, limit column;15, annular recess;16, annular magnet;17, clamping notch;18, drive notch. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4The utility model provides a kind of embodiment: train compartment is with bolt with hole structure, including hexagonal block 1, spring clip 3 and circular column 4, the bottom of circular column 4 is fixedly connected with threaded column 5, the top of circular column 4 is fixedly connected with limiting column 7, the outer wall of limiting column 7 is fixedly connected with multiple limit blocks 6, the top of limiting column 7 is fixedly connected with clamping cylinder 9, the top of hexagonal block 1 is equipped with arc slot 8, spring clip 3 and clamping cylinder 9 are clamped, take down spring clip 3 from clamping cylinder 9, subsequently damaged hexagonal block 1 can be taken down, and new hexagonal block 1 is passed through clamping cylinder 9, and under the restriction of limit block 6, so that new hexagonal block 1 is clamped above limiting column 7, subsequently disassembled spring clip 3 is clamped above clamping cylinder 9, to complete the replacement of new hexagonal block 1, the outer wall front side of threaded column 5 is equipped with hole 10, hole 10 can reduce the self weight of bolt, comply with the development trend of train light weight, and still can be realized through hole 10 special function of threading, installing pin, on the basis of guaranteeing connection strength, satisfy the complex assembly and use demand in car, the bottom of hexagonal block 1 is fixedly connected with gasket 11, gasket 11 improves the contact area of hexagonal block 1, the outer wall of threaded column 5 is provided with wear-resistant buffer mechanism 2, and wear-resistant buffer mechanism 2 is used to improve its buffering capacity;

[0032] Specifically, when the bolt outside appears wear and tear, corrosion, leading to failure to replace the fault bolt in time, at this time, the tool is used to take down spring clip 3 from clamping cylinder 9, subsequently damaged hexagonal block 1 can be taken down, and new hexagonal block 1 is passed through clamping cylinder 9, and under the restriction of limit block 6, so that new hexagonal block 1 is clamped above limiting column 7, subsequently disassembled spring clip 3 is clamped above clamping cylinder 9, to complete the replacement of new hexagonal block 1, and through hole 10 can reduce the self weight of bolt, comply with the development trend of train light weight, and still can be realized through hole 10 special function of threading, installing pin, on the basis of guaranteeing connection strength, satisfy the complex assembly and use demand in car, simultaneously gasket 11 improves the contact area of hexagonal block 1, so that bolt can be replaced under wear and tear, corrosion, to complete its repair and maintenance.

[0033] Refer to Figure 1 、 Figure 2 and Figure 5The wear-resistant buffer mechanism 2 comprises a nut 201, the inner wall of the nut 201 is arranged on the outer wall of the threaded column 5, the inner wall of the nut 201 is provided with a threaded groove 205, the inner wall of the threaded groove 205 is threadedly connected with the outer wall of the threaded column 5, the top end of the nut 201 is fixedly connected with an extrusion sheet 202, the extrusion sheet 202 can increase the contact area with the surface of the connected object, the top end of the nut 201 is fixedly connected with a plurality of wear-resistant strips 203, the wear-resistant strips 203 improve the wear resistance of the extrusion sheet 202, the top end of the hexagonal block 1 is fixedly connected with a plurality of buffer plates 204, under the action of the buffer plates 204, the hexagonal block 1 has a certain buffering effect, when vibrating, the loosening of the bolt can be reduced, the top end of the buffer plate 204 is fixedly connected with a plurality of anti-skid strips 206, the anti-skid strips 206 can increase the friction strength with the surface of the connected object;

[0034] Specifically, for some connection conditions, the nut 201 needs to be used, the contact area with the surface of the connected object can be increased through the extrusion sheet 202, so that the stress is more uniform, then the wear resistance of the extrusion sheet 202 is improved through the wear-resistant strips 203, and under the action of the buffer plate 204, the hexagonal block 1 has a certain buffering effect, when vibrating, the loosening of the bolt can be reduced, and the anti-skid strips 206 above can increase the friction strength with the surface of the connected object, so as to improve the anti-vibration ability.

[0035] Referring to Figure 1 , Figure 3 and Figure 4 , the top end of the gasket 11 is fixedly connected with a plurality of limiting strips 12, the limiting strips 12 can limit the displacement of the gasket 11 in the process of bolt fastening or vibration caused by train running, the bottom end of the gasket 11 is provided with a plurality of anti-skid grooves 13, the anti-skid grooves 13 can greatly increase the friction between the tool and the gasket 11; the inner wall of the clamping spring sheet 3 is fixedly connected with a limiting column 14 on the front and back sides, the limiting column 14 can limit the installation position and angle of the clamping spring sheet 3, the inner wall of the clamping cylinder 9 is smoothly processed, which can reduce the friction resistance in the insertion process and avoid scratching and damaging the surface of the shaft part; the top end of the hexagonal block 1 is provided with an annular groove 15, the annular groove 15 can provide installation space for an annular magnet 16, the inner wall bottom of the annular groove 15 is fixedly connected with the annular magnet 16, and the annular magnet 16 can adsorb small metal scraps around;

[0036] Specifically, the spacer 11 can be limited in displacement by the limiting strip 12 during bolt fastening or vibration caused by train operation, ensuring that the spacer 11 is always in the correct position to play its due role of buffering and anti-loose, avoiding the hidden danger of bolt loosening caused by displacement of the spacer 11, the friction between the tool and the spacer 11 can be greatly increased by the anti-skid groove 13 to prevent the tool from slipping on the surface of the spacer 11 during operation, thereby helping to smoothly complete the disassembly and fastening work of the bolt, improving the efficiency and reliability of maintenance operation, the installation position and angle of the clamping spring piece 3 can be limited by the limiting column 14 to ensure that the clamping spring piece 3 can accurately play its clamping and fixing effect on other components, preventing the clamping spring piece 3 from deviating or misplacing during work, affecting the stability of the entire connecting structure, the inner wall of the clamping cylinder 9 can be smoothly processed to reduce the friction resistance during insertion, avoiding scratching and damaging the surface of the shaft component, and at the same time, the smooth inner wall can reduce the rotating friction loss when the shaft component rotates, improve the operating efficiency of the entire transmission or connecting structure, and prolong the service life of the related components, the annular recess 15 can provide installation space for the annular magnet 16, and through the structural design of the recess, the annular magnet 16 can be limited to a certain extent to prevent displacement during use, the annular magnet 16 can attract small metal debris around it, avoiding the scattering of these debris in the train running environment and entering the internal key components to affect the normal operation of the train, and at the same time, it can assist in fixing some light metal parts to some extent, facilitating installation and operation.

[0037] With reference to Figure 1 , Figure 2 and Figure 5 , a plurality of clamping notches 17 are formed around the outer wall of the hexagonal block 1, the clamping notches 17 are equidistantly formed on the outer wall of the hexagonal block 1, and the clamping notches 17 can be clamped in the tool during disassembly or installation of the hexagonal block 1, and then the hexagonal block 1 can be rotated for disassembly or installation; a plurality of driving notches 18 are formed around the outer wall of the nut 201, the driving notches 18 are equidistantly formed on the outer wall of the nut 201, and the driving notches 18 provide convenient operating points for disassembly and fastening of the nut 201; the inner wall size of the clamping spring piece 3 is consistent with the inner wall size of the clamping cylinder 9, in order to realize close and stable connection, the outer wall size of the circular column 4 is larger than the outer wall size of the threaded column 5, which can play a preliminary positioning and supporting role by virtue of its size advantage;

[0038] Specifically, by engaging the recess 17, when the hexagonal block 1 is disassembled or installed, only the tool is engaged in the engaging recess 17, and then the hexagonal block 1 is rotated to disassemble or install, the driving recess 18 provides a convenient operating force point for disassembling and tightening the nut 201, the inner wall size of the clamping spring piece 3 is consistent with the inner wall size of the clamping cylinder 9 to realize tight and stable connection, and the outer wall size of the circular column 4 is larger than the outer wall size of the threaded column 5, which can rely on the size advantage to play a preliminary positioning and supporting role.

[0039] Working principle: when the bolt outside appears wear or corrosion, and the fault bolt cannot be replaced immediately, the tool can be used to take out the clamping spring piece 3 from the clamping cylinder 9, then the damaged hexagonal block 1 can be disassembled, and the new hexagonal block 1 is passed through the clamping cylinder 9, under the limiting action of the limiting block 6, the new hexagonal block 1 will be limited above the limiting column 7, then the disassembled clamping spring piece 3 is reinstalled on the top of the clamping cylinder 9, to complete the replacement of the new hexagonal block 1, through the hole 10, the weight of the bolt can be reduced, which conforms to the development trend of train lightening, in addition, the hole 10 also allows to realize threading and installation of pins and other special functions, which not only ensures the strength of the connection, but also meets the complex assembly and use requirements inside the car, at the same time, the gasket 11 increases the contact area of the hexagonal block 1, so that the bolt can be replaced in the case of wear or corrosion, thereby realizing the maintenance and maintenance of the bolt;

[0040] And through the wear-resistant buffer mechanism 2, in some connection occasions, the nut 201 must be used, the contact area with the surface of the connected object can be increased through the extrusion piece 202, so as to realize the uniform distribution of stress, then the wear-resistant strip 203 improves the wear resistance of the extrusion piece 202, and under the assistance of the buffer plate 204, it has certain buffering capacity, when the vibration occurs, this structure can reduce the loosening influence on the bolt, in addition, the upper anti-skid strip 206 can enhance the friction force with the surface of the connected object, thereby improving the anti-vibration performance.

[0041] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bolt with a hole structure for a train carriage, comprising a hexagonal block (1), a clamping spring piece (3) and a circular column (4), characterized in that: The bottom of the circular column (4) is fixedly connected with a threaded column (5), the top of the circular column (4) is fixedly connected with a limiting column (7), the outer wall of the limiting column (7) is fixedly connected with a plurality of limiting blocks (6), the top of the limiting column (7) is fixedly connected with a clamping cylindrical column (9), the top of the hexagonal block (1) is provided with an arc-shaped groove (8), the clamping spring piece (3) is clamped with the clamping cylindrical column (9), the outer wall of the threaded column (5) is provided with a hole (10), the bottom of the hexagonal block (1) is fixedly connected with a gasket (11), and the outer wall of the threaded column (5) is provided with a wear-resistant buffering mechanism (2).

2. The hole-structured bolt for a train car according to claim 1, characterized by: The wear-resistant buffering mechanism (2) comprises a nut (201), the inner wall of the nut (201) is arranged on the outer wall of the threaded column (5), the inner wall of the nut (201) is provided with a threaded groove (205), the inner wall of the threaded groove (205) is threadedly connected with the outer wall of the threaded column (5), the top end of the nut (201) is fixedly connected with an extrusion piece (202), the top end of the nut (201) is fixedly connected with a plurality of wear-resistant strips (203), the top end of the hexagonal block (1) is fixedly connected with a plurality of buffer plates (204), and the top end of the buffer plate (204) is fixedly connected with a plurality of anti-skid strips (206).

3. The hole-structured bolt for a train car according to claim 1, characterized by: The top end of the gasket (11) is fixedly connected with a plurality of limiting strips (12), and the bottom end of the gasket (11) is provided with a plurality of anti-skid grooves (13).

4. The hole-structured bolt for a train car according to claim 1, characterized by: The inner wall of the clamping spring piece (3) is fixedly connected with a limiting column (14) on the front and back sides, and the inner wall of the clamping cylindrical column (9) is rounded.

5. The hole-structured bolt for a train car according to claim 1, characterized by: The top end of the hexagonal block (1) is provided with an annular groove (15), and the inner wall bottom of the annular groove (15) is fixedly connected with an annular magnet (16).

6. The hole-structured train car bolt according to claim 1, wherein: A plurality of clamping notches (17) are formed in the outer wall of the hexagonal block (1), and the clamping notches (17) are equidistantly arranged on the outer wall of the hexagonal block (1).

7. The hole-structured bolt for a train car according to claim 2, characterized by: A plurality of driving notches (18) are formed in the outer wall of the nut (201), and the driving notches (18) are equidistantly arranged on the outer wall of the nut (201).

8. The hole-structured bolt for a train car according to claim 1, characterized by: The size of the inner wall of the clamping spring piece (3) is consistent with the size of the inner wall of the clamping cylindrical column (9), and the size of the outer wall of the circular column (4) is greater than the size of the outer wall of the threaded column (5).

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