Under-vehicle equipment and railway vehicle

Abstract

The utility model provides an under-vehicle device and a railway vehicle, the under-vehicle device comprises a bearing assembly, the bearing assembly comprises a cabinet body and a cover plate, the cabinet body is provided with an opening, and the cover plate covers the opening; the cover plate is mounted on one side of the cabinet body through the connecting piece; and the anti-falling assembly comprises a tensioning piece, the tensioning piece has deformation, and the tensioning piece is detachably connected between the cover plate and the cabinet body. The safety in the using process is improved, and the pressure relief function can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tracks, in particular to an under - vehicle device and a rail vehicle. Background Art

[0002] Urban rail transit, such as subways and light rails, is part of the urban passenger transportation system. With the gradual increase in the operating speed and vehicle availability requirements of rail transit vehicles, the reliability and safety of under - vehicle devices have also been improved.

[0003] Currently, due to installation, maintenance and other requirements, the cabinet covers of under - vehicle devices mostly adopt a quickly detachable installation structure.

[0004] However, during the operation of the vehicle, there is a risk of the cabinet cover falling off due to reasons such as lock failure, loosening of the cover fastening, and human error, which poses potential safety hazards to the operation of the vehicle and track - side equipment. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide an under - vehicle device and a rail vehicle, which improve the safety during use and can realize a pressure - relief function.

[0006] To achieve the above object, in a first aspect, the utility model provides an under - vehicle device installed on the car body of a rail vehicle. The under - vehicle device includes:

[0007] A bearing assembly, which includes a cabinet body and a cover plate. The cabinet body has an opening, and the cover plate covers the opening;

[0008] A connecting member, and the cover plate is installed on one side of the cabinet body through the connecting member;

[0009] An anti - detachment assembly, which includes a tensioning member with a deformation amount, and the tensioning member is detachably connected between the cover plate and the cabinet body.

[0010] The beneficial effects of the utility model are as follows: Through the setting of the anti - detachment assembly, on the basis of the cover plate being installed on the cabinet body, it ensures that the cabinet body and the cover plate always remain stable, and will not accidentally fall off due to lock failure or loosening of the fastening, greatly improving the safety during use and reducing the possibility of human operation errors. Even when the user does not fully lock it, the anti - detachment assembly can provide additional protection to prevent the cover plate from loosening, and maintains the simplicity of the operation. It can be easily locked and unlocked without additional tools or complex steps; in addition, the tensioning member has a certain deformation amount, which enables flexible adjustment between the cover plate and the cabinet body, and can also meet the requirement of pressure relief when the internal pressure of the cabinet body is too high.

[0011] On the basis of the above - mentioned technical solution, the utility model can also be improved as follows.

[0012] In some alternative embodiments, there are multiple tension members, and the multiple tension members are connected to different positions between the cover plate and the cabinet body.

[0013] It should be noted that the arrangement of multiple tension members is to improve the connection strength of the tension members, and further improve the anti - detachment effect of the anti - detachment component.

[0014] In some alternative embodiments, the tension member is a steel wire rope.

[0015] In some alternative embodiments, the anti - detachment component further includes a limiting member. At least part of the limiting member is movably arranged on one of the cabinet body and the cover plate, and the tension member is connected between the other of the cabinet body and the cover plate and the limiting member, so that the tension member can be detached or abutted relative to the limiting member.

[0016] It should be noted that the arrangement of the limiting member, on the one hand, satisfies the installation of the tension member, and on the other hand, satisfies the abutment of the tension member, so that the tension member can be tightened between the cabinet body and the cover plate.

[0017] In some alternative embodiments, the limiting member includes a limiting pin and a baffle. The limiting pin is arranged on the cover plate, and the tension member is connected between the cabinet body and the limiting member;

[0018] The limiting pin has a pin shaft, the pin shaft is arranged along the radial direction of the limiting pin, an adjustment hole is formed on the baffle, the adjustment hole extends along the length direction of the baffle, the pin shaft passes through the adjustment hole and can be located at different positions of the adjustment hole.

[0019] It should be noted that the arrangement of the limiting pin and the baffle is to meet the tightening or disassembly of the tension member.

[0020] In some alternative embodiments, when the pin shaft is located at the first position of the adjustment hole, the baffle is located on both sides of the limiting pin along the radial direction of the limiting pin, the tension member is hung on the limiting pin and abuts against the baffle;

[0021] When the pin shaft is located at the second position of the adjustment hole, the baffle moves to one side of the limiting pin along the radial direction and rotates to one side of the limiting pin along the axial direction, so that the tension member is detached from the limiting pin.

[0022] It should be noted that the design of the limiting pin and the baffle enables the baffle to provide a blocking function for the tension member so that it can be installed on the limiting member; or the baffle can move along the pin shaft and rotate to be flush with the limiting pin, so that the tension member can be detached.

[0023] In some alternative embodiments, the limiting pin has a slotted opening, the slotted opening is located at the end of the limiting pin, the pin shaft is located in the slotted opening, and the slotted opening has a notch facing the baffle.

[0024] It should be noted that the design of the slotted opening provides an avoidance space for the rotation of the baffle.

[0025] In some alternative embodiments, the anti - detachment component further includes a fastener. One end of the tension member is connected to the cabinet body through the fastener, and the other end of the tension member is movably connected to the limiting member.

[0026] It should be noted that the design of the fastener enables the tension member to be firmly installed on the cabinet body. When it is necessary to disassemble the tension member, only the end installed on the limiting member needs to be disassembled. The structure is compact and simple, and easy to operate.

[0027] In some alternative embodiments, at least one of the fastener and the connecting member is a fastening bolt.

[0028] It should be noted that such a setting takes into account the cost issue. In addition, it is convenient for operation and improves the connection strength.

[0029] In a second aspect, the present utility model further provides a rail vehicle, including a vehicle body and the above - mentioned under - vehicle equipment, and the under - vehicle equipment is arranged on the vehicle body.

[0030] The under - vehicle equipment and the rail vehicle provided by the present utility model, the rail vehicle includes a vehicle body and the above - mentioned under - vehicle equipment, and the under - vehicle equipment is arranged on the vehicle body; wherein, the under - vehicle equipment includes a bearing component, the bearing component includes a cabinet body and a cover plate, the cabinet body has an opening, and the cover plate covers the opening; a connecting member, the cover plate is installed on one side of the cabinet body through the connecting member; an anti - detachment component, the anti - detachment component includes a tension member, the tension member has a deformation amount, and the tension member is detachably connected between the cover plate and the cabinet body.

[0031] Through the setting of the anti - detachment component, on the basis that the cover plate is installed on the cabinet body, it is ensured that the cabinet body and the cover plate always remain stable, and will not accidentally fall off due to lock failure or fastening loosening, greatly improving the safety during use and reducing the possibility of human operation errors. Even when the user does not fully lock it, the anti - detachment component can also provide additional protection to prevent the cover plate from loosening, and maintains the simplicity of the operation. It can be easily locked and unlocked without additional tools or complex steps; in addition, the tension member has a certain deformation amount, which enables the flexible adjustment between the cover plate and the cabinet body, and can also meet the requirement of pressure relief due to excessive internal pressure in the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following - described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a schematic structural diagram of the under - vehicle equipment provided by the embodiment of the present utility model;

[0034] Figure 2 Partial structural schematic diagram of the under-vehicle equipment provided by the embodiment of the present utility model;

[0035] Figure 3 is Figure 2 Partial enlarged view at I in

[0036] Figure 4 Structural schematic diagram of the tensioning member provided by the embodiment of the present utility model;

[0037] Figure 5 Schematic diagram of the first state of the limiting member provided by the embodiment of the present utility model;

[0038] Figure 6 Schematic diagram of the second state of the limiting member provided by the embodiment of the present utility model;

[0039] Figure 7 Schematic diagram of the third state of the limiting member provided by the embodiment of the present utility model.

[0040] Explanation of reference numerals:

[0041] 100 - Under-vehicle equipment;

[0042] 110 - Bearing assembly;

[0043] 111 - Cabinet;

[0044] 112 - Cover plate;

[0045] 120 - Connecting member;

[0046] 130 - Anti-disengagement assembly;

[0047] 131 - Tensioning member;

[0048] 132 - Limiting member;

[0049] 1321 - Limiting pin;

[0050] 13211 - Pin shaft;

[0051] 1322 - Baffle;

[0052] 13221 - Adjusting hole;

[0053] 133 - Fastening member. Detailed implementation manners

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model. All other embodiments obtained fall within the scope of protection of the present utility model. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0055] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0056] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath", and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0057] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] At present, due to installation, maintenance and other requirements of the undercarriage equipment, the cabinet cover plates mostly adopt a quickly detachable and installable structure. However, during the operation of the vehicle, there is a risk of the cabinet cover plate falling off due to reasons such as locking failure, loosening of the cover plate fastening, and human error, which poses potential safety hazards to the operation of the vehicle and trackside equipment.

[0059] To overcome the defects in the prior art, the undercarriage equipment and rail vehicle provided by the present utility model, through the setting of the anti-detachment component, ensure that the cover plate is firmly fixed to the cabinet on the basis of being installed on the cabinet, and will not accidentally fall off due to locking failure or fastening loosening, greatly improving the safety during use and reducing the possibility of human operation errors. Even when the user does not fully lock it, the anti-detachment component can provide additional protection to prevent the cover plate from loosening, and maintains the simplicity of the operation, allowing for easy locking and unlocking operations without the need for additional tools or complex steps; in addition, the tensioning member has a certain amount of deformation, enabling flexible adjustment between the cover plate and the cabinet, and can also meet the requirement of pressure relief due to excessive internal pressure in the cabinet.

[0060] The following will describe the content of the present utility model in detail with reference to the accompanying drawings, so that those skilled in the art can understand the content of the present utility model more clearly and in detail.

[0061] Figure 1 It is a schematic structural diagram of the undercarriage equipment provided by an embodiment of the present utility model. Figure 2 It is a partial structural diagram of the undercarriage equipment provided by an embodiment of the present utility model. Figure 3 For Figure 2 The partial enlarged view at I in

[0062] As Figures 1 to 3 shown, an embodiment of the present utility model provides an undercarriage equipment 100, which is installed on the car body of a rail vehicle. The undercarriage equipment 100 includes:

[0063] A bearing component 110, the bearing component 110 includes a cabinet 111 and a cover plate 112. The cabinet 111 has an opening, and the cover plate 112 covers the opening.

[0064] A connecting member 120, the cover plate 112 is installed on one side of the cabinet 111 through the connecting member 120.

[0065] An anti-detachment component 130, the anti-detachment component 130 includes a tensioning member 131. The tensioning member 131 has a deformation amount, and the tensioning member 131 is detachably connected between the cover plate 112 and the cabinet 111.

[0066] With the above settings, that is, through the settings of the anti - detachment component 130, on the basis that the cover plate 112 is installed on the cabinet body 111, it is ensured that the cabinet body 111 and the cover plate 112 always remain stable, and will not accidentally fall off due to lock failure or fastening loosening, greatly improving the safety during use and reducing the possibility of human operation errors. Even when the user does not fully lock it, the anti - detachment component 130 can provide additional protection to prevent the cover plate 112 from loosening, and maintains the simplicity of operation. The locking and unlocking operations can be easily performed without additional tools or complex steps; in addition, the tensioning member 131 has a certain amount of deformation, which enables flexible adjustment between the cover plate 112 and the cabinet body 111, and can also meet the requirement of pressure relief when the internal pressure of the cabinet body 111 is too high.

[0067] It should be noted that the following is a specific description of each structure.

[0068] It should be noted that the cabinet body 111 is used to accommodate various electrical devices such as electronic components, and the cabinet body 111 is hoisted at the bottom of the car body of the rail vehicle.

[0069] In this embodiment, the cabinet body 111 is installed at the bottom of the car body, and the installation environment of the electrical equipment is complex. To prevent external water stains, dust, etc. from entering the cabinet body 111, the cabinet body 111 can be a sealed cabinet body 111, which includes a sealed cavity, and the electronic component assembly is installed in the cavity.

[0070] In some embodiments, the cabinet body 111 is generally in the shape of a hollow cuboid. The hollow space inside the cabinet body 111 is an installation cavity. Installation lugs are provided on two opposite sides of the top surface of the cabinet body 111, and through - holes are opened on the lugs. The connecting member 120 passes through the through - holes to fasten the cabinet body 111 to the bottom of the car body.

[0071] In some embodiments, the cover plate 112 can be fixedly connected to the cabinet body 111, for example, directly welded or riveted to the cabinet body 111. This can improve the sealing performance of the cabinet body 111, and eliminate the hinge structure, reducing the cost.

[0072] Of course, in other embodiments, the shape and installation method of the cabinet body 111 are not limited to this. To prevent interference between the cabinet body 111 and other structures at the bottom of the car body, the cabinet body 111 can be reasonably provided with avoidance structures according to the structure at the bottom of the car body. For example, the cabinet body 111 can be a cuboid with a missing corner, a triangular prism or other shapes. The cabinet body 111 can also be installed at the bottom of the car body by riveting.

[0073] In some embodiments, the cabinet body 111 can be a three - dimensional structure formed by connecting multiple rods. After the multiple rods are connected, openings are formed, and a cover plate 112 is covered on each opening, so that the cabinet body 111 and the cover plate 112 enclose an installation cavity.

[0074] The cabinet body 111 can be made of materials with relatively high strength, such as aluminum alloy, steel, etc. The cover plate 112 is a covering part and has relatively low requirements for strength, and can be made of thin plates. For example, a cuboid cabinet body 111 is formed by splicing multiple aluminum alloy profiles, and stainless steel plates are covered on each opening of the cuboid cabinet body 111. Compared with the cabinet body 111 being entirely made of profiles with relatively high strength, the cabinet body 111 composed of the cabinet body 111 and the cover plate 112 reduces costs while ensuring strength.

[0075] The utility model adopts durable materials and reliable structural designs, significantly extending the service lives of the cabinet body 111, the cover plate 112 and its anti-detachment assembly 130, reducing the frequencies of maintenance and replacement, and lowering the usage costs.

[0076] Optionally, the cabinet body 111 is formed by spot welding multiple stainless steel parts, and sealant is applied at each weld seam, which can improve the sealing performance of the cabinet body 111 and prevent external dust, etc. from entering the cabinet body 111 through the weld seams. The method of applying sealant at the weld seams after spot welding reduces costs while ensuring the sealing performance compared with the method of continuous welding.

[0077] It should be noted that in order to prevent the connection strength of the connector 120 from being insufficient, an anti-detachment assembly 130 is added on the basis of the connector 120. The anti-detachment assembly 130 provides secondary anti-detachment protection for the cover plate 112 under conditions such as the locking failure of the cabinet body 111 and the cover plate 112 and the loosening of fastening, avoiding the influence on the vehicle operation caused by the detachment of the cover plate 112 and eliminating potential safety hazards to the vehicle, trackside equipment, personnel, etc.

[0078] Specifically, the tensioning member 131 has a certain amount of deformation, and the length of the tensioning member 131 can be predetermined. When the cover plate 112 is about to fall off due to reasons such as locking failure or fastening loosening, since one end of the tensioning member 131 is fastened on the side of the cabinet body 111 and the other end is tensioned on the side of the cover plate 112, after the tensioning member 131 is tightened, there is no risk of the cover plate 112 falling off.

[0079] In addition, for the cabinet body 111 with sealing requirements, when the internal pressure of the cabinet body 111 is too high, it may cause the cover plate 112 to become loose. The utility model can not only achieve secondary anti-detachment, but also realize the function of pressure relief of the cabinet body 111.

[0080] As Figures 1 to 3 shown, in some optional embodiments, there are multiple tensioning members 131, and the multiple tensioning members 131 are connected at different positions between the cover plate 112 and the cabinet body 111.

[0081] It should be noted that the multiple tensioning members 131 are provided to improve the connection strength of the tensioning members 131, and further improve the anti-detachment effect of the anti-detachment assembly 130.

[0082] Figure 4 This is a schematic structural diagram of the tensioning member provided by the embodiment of the present utility model. As Figures 1 to 4 shown, in some alternative embodiments, the tensioning member 131 is a steel wire rope.

[0083] It should be noted that when the tensioning member 131 is a steel wire rope, it can have a certain amount of elastic deformation and plastic deformation. Among them, elastic deformation refers to the reversible deformation that occurs when the steel wire rope is stressed. When an external force is applied to the steel wire rope, the steel wire rope will undergo a certain degree of deformation. The stress corresponding to this deformation is called elastic stress, which is proportional to the elongation of the steel wire rope after being stressed. When the external force is removed, the steel wire rope will return to its original shape and length. This phenomenon is called the elastic deformation of the steel wire rope, and the functions of hoisting, traction, etc. can be realized by utilizing the characteristics of elastic deformation.

[0084] Secondly, plastic deformation refers to the irreversible deformation that occurs when the steel wire rope is stressed. When the external force exceeds the strength limit of the steel wire rope, the steel wire rope will undergo plastic deformation, that is, the shape and length of the steel wire rope will change. At this time, the stress borne by the steel wire rope is called plastic stress, which is proportional to the elongation of the steel wire rope after being stressed. When the external force is removed, the steel wire rope will not return to its original shape and length, but retains the deformation after being stressed.

[0085] In summary, the principle of the steel wire rope mainly involves two aspects: elastic deformation and plastic deformation. Within the range of elastic deformation, the steel wire rope can achieve excellent properties such as strength, toughness, and wear resistance. However, when the stress exceeds the elastic limit, the steel wire rope will undergo plastic deformation, thereby reducing its service life. Therefore, when using a steel wire rope, it is necessary to select and use it according to its strength and stress limit to ensure its safe and reliable operation.

[0086] Figure 5 This is a schematic diagram of the first state of the limiting member provided by the embodiment of the present utility model. Figure 6 This is a schematic diagram of the second state of the limiting member provided by the embodiment of the present utility model. Figure 7 This is a schematic diagram of the third state of the limiting member provided by the embodiment of the present utility model.

[0087] As Figures 1 to 7 shown, in some alternative embodiments, the anti-disengagement assembly 130 further includes a limiting member 132. At least a part of the limiting member 132 is movably disposed on one of the cabinet body 111 and the cover plate 112, and the tensioning member 131 is connected between the other of the cabinet body 111 and the cover plate 112 and the limiting member 132, so that the tensioning member 131 can be disengaged or abutted against the limiting member 132.

[0088] It should be noted that the setting of the limiting member 132, on the one hand, satisfies the installation of the tensioning member 131, and on the other hand, satisfies the abutment of the tensioning member 131, so that the tensioning member 131 can be tensioned between the cabinet body 111 and the cover plate 112.

[0089] As Figures 1 to 7 shown, in some alternative embodiments, the limiting member 132 includes a limiting pin 1321 and a baffle 1322. The limiting pin 1321 is arranged on the cover plate 112, and the tensioning member 131 is connected between the cabinet body 111 and the limiting member 132;

[0090] The limiting pin 1321 has a pin shaft 13211 which is arranged radially along the limiting pin 1321. An adjustment hole 13221 is formed on the baffle 1322, and the adjustment hole 13221 extends along the length direction of the baffle 1322. The pin shaft 13211 passes through the adjustment hole 13221 and can be located at different positions of the adjustment hole 13221.

[0091] It should be noted that the settings of the limiting pin 1321 and the baffle 1322 are to satisfy the tensioning or disassembly of the tensioning member 131.

[0092] Specifically, the design of the pin shaft 13211 and the adjustment hole 13221 is to satisfy that the baffle 1322 can move and rotate relative to the limiting pin 1321.

[0093] In some alternative embodiments, when the pin shaft 13211 is located at the first position of the adjustment hole 13221, the baffle 1322 is located on both sides of the limiting pin 1321 along the radial direction of the limiting pin 1321. The tensioning member 131 is hung on the limiting pin 1321 and abuts against the baffle 1322;

[0094] When the pin shaft 13211 is located at the second position of the adjustment hole 13221, the baffle 1322 moves to one side of the limiting pin 1321 in the radial direction and rotates to one side of the limiting pin 1321 in the axial direction, so that the tensioning member 131 can be separated from the limiting pin 1321.

[0095] It should be noted that the design of the limiting pin 1321 and the baffle 1322 enables the baffle 1322 to provide a blocking function for the tensioning member 131 so that it can be installed on the limiting member 132; or the baffle 1322 can move along the pin shaft 13211 and rotate to be flush with the limiting pin 1321, so that the tensioning member 131 can be detached.

[0096] Specifically, the pin shaft 13211 is located at the second position of the adjustment hole 13221. The tensioning member 131 gradually passes through the baffle 1322 and the limit pin 1321. After that, the baffle 1322 rotates counterclockwise, forming an angle with the limit pin 1321. Then, the position between the baffle 1322 and the limit pin 1321 is adjusted so that the pin shaft 13211 is located at the first position of the adjustment hole 13221. The tensioning member 131 can abut against the baffle 1322 in the tensioned state to complete the tensioning.

[0097] Of course, the process of disassembling the tensioning member 131 is opposite to the above. Specifically, the pin shaft 13211 is located at the first position of the adjustment hole 13221. The baffle 1322 is moved so that the pin shaft 13211 is located at the second position of the adjustment hole 13221. After that, the baffle 1322 rotates clockwise until it is flush with the limit pin 1321, and the tensioning member 131 can be detached, finally completing the disassembly.

[0098] In some alternative embodiments, the limit pin 1321 has a slotted opening. The slotted opening is located at the end of the limit pin 1321. The pin shaft 13211 is located within the slotted opening. The slotted opening has a notch facing the baffle 1322.

[0099] It should be noted that the design of the slotted opening provides a clearance space for the rotation of the baffle 1322.

[0100] In some alternative embodiments, the anti - detachment assembly 130 further includes a fastener 133. One end of the tensioning member 131 is connected to the cabinet body 111 through the fastener 133, and the other end of the tensioning member 131 is movably connected to the limiting member 132.

[0101] It should be noted that the design of the fastener 133 enables the tensioning member 131 to be firmly installed on the cabinet body 111. When the tensioning member 131 needs to be disassembled, only the end installed on the limiting member 132 needs to be disassembled. The structure is compact and simple, and easy to operate.

[0102] In some alternative embodiments, at least one of the fastener 133 and the connecting member 120 is a fastening bolt.

[0103] It should be noted that such a setting takes into account the cost issue. In addition, it is convenient for operation and improves the connection strength.

[0104] The under - vehicle equipment provided by the embodiment of the present utility model includes a bearing assembly. The bearing assembly includes a cabinet body and a cover plate. The cabinet body has an opening, and the cover plate covers the opening; a connecting member, the cover plate is installed on one side of the cabinet body through the connecting member; an anti - detachment assembly, the anti - detachment assembly includes a tensioning member. The tensioning member has a deformation amount, and the tensioning member is detachably connected between the cover plate and the cabinet body.

[0105] Through the setting of the anti - detachment component, on the basis that the cover plate is installed on the cabinet body, it ensures that the cabinet body and the cover plate always remain stable, and will not accidentally fall off due to lock failure or fastening loosening, greatly improving the safety during use and reducing the possibility of errors in manual operations. Even when the user does not fully lock it, the anti - detachment component can provide additional protection to prevent the cover plate from loosening, and maintains the simplicity of operation. It can be easily locked and unlocked without additional tools or complex steps; in addition, the tensioning member has a certain amount of deformation, which enables flexible adjustment between the cover plate and the cabinet body, and can also meet the requirement of pressure relief due to excessive internal pressure in the cabinet body.

[0106] In addition, the embodiment of the present utility model further provides a rail vehicle, including a vehicle body and the above - mentioned under - vehicle equipment 100, and the under - vehicle equipment 100 is arranged on the vehicle body.

[0107] It should be noted that the vehicle body can be a freight vehicle body. The freight vehicle body includes a head car and multiple intermediate cars, that is, the freight vehicle body includes multiple carriages. The under - vehicle equipment 100 in the first embodiment can be arranged at the bottom of each carriage, and the under - vehicle equipment 100 can be arranged on the underframe of the vehicle body.

[0108] The under - vehicle equipment 100 is arranged at the bottom of the vehicle body, which can save the space inside the carriage, improve the accommodation capacity of the vehicle body, make the bottom of the vehicle body cleaner, and the layout simpler.

[0109] Among them, the specific structure, working principle and function of the under - vehicle equipment 100 have been described in detail in the above - mentioned first embodiment, and will not be elaborated here.

[0110] Through the setting of the anti - detachment component, on the basis that the cover plate is installed on the cabinet body, it ensures that the cabinet body and the cover plate always remain stable, and will not accidentally fall off due to lock failure or fastening loosening, greatly improving the safety during use and reducing the possibility of errors in manual operations. Even when the user does not fully lock it, the anti - detachment component can provide additional protection to prevent the cover plate from loosening, and maintains the simplicity of operation. It can be easily locked and unlocked without additional tools or complex steps; in addition, the tensioning member has a certain amount of deformation, which enables flexible adjustment between the cover plate and the cabinet body, and can also meet the requirement of pressure relief due to excessive internal pressure in the cabinet body.

[0111] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0112] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. An undercarriage device (100), installed on a rail vehicle, characterized in that: The off-vehicle equipment (100) comprises: A bearing assembly (110), the bearing assembly (110) comprising a cabinet (111) and a cover plate (112), the cabinet (111) having an opening, and the cover plate (112) covering the opening; A connecting piece (120), wherein the cover plate (112) is installed on one side of the cabinet (111) through the connecting piece (120); An anti-slip assembly (130), the anti-slip assembly (130) comprising a tensioning member (131), the tensioning member (131) having a deformation amount, and the tensioning member (131) being detachably connected between the cover plate (112) and the cabinet body (111).

2. The under-vehicle device (100) according to claim 1, characterized in that: There are a plurality of tensioning members (131), and the plurality of tensioning members (131) are connected at different positions between the cover plate (112) and the cabinet body (111).

3. The under-vehicle device (100) according to claim 1, characterized in that: The tensioning member (131) is a steel wire rope.

4. The under-vehicle device (100) according to any one of claims 1 to 3, characterized in that: The anti-drop assembly (130) further comprises a limiting member (132), at least part of which is movably arranged on one of the cabinet body (111) and the cover plate (112), and the tensioning member (131) is connected between the other of the cabinet body (111) and the cover plate (112) and the limiting member (132), so that the tensioning member (131) falls off or abuts against the limiting member (132).

5. The under-vehicle device (100) according to claim 4, characterized in that: The limiting member (132) comprises a limiting pin (1321) and a baffle (1322); the limiting pin (1321) is arranged on the cover plate (112); and the tensioning member (131) is connected between the cabinet (111) and the limiting member (132); The limiting pin (1321) has a pin shaft (13211), and the pin shaft (13211) is radially arranged along the limiting pin (1321). An adjustment hole (13221) is provided on the baffle plate (1322), and the adjustment hole (13221) extends along the length direction of the baffle plate (1322). The pin shaft (13211) passes through the adjustment hole (13221) and can be located at different positions of the adjustment hole (13221).

6. The under-vehicle device (100) according to claim 5, characterized in that: When the pin shaft (13211) is located at the first position of the adjustment hole (13221), the baffle (1322) is located on both sides of the limit pin (1321) along the radial direction of the limit pin (1321), and the tensioning member (131) is hung on the limit pin (1321) and abuts against the baffle (1322); When the pin shaft (13211) is located at the second position of the adjustment hole (13221), the baffle (1322) moves to the radial side of the limit pin (1321) and rotates around the pin shaft (13211) to the axial side of the limit pin (1321), so that the tensioning member (131) falls off relative to the limit pin (1321).

7. The under-vehicle device (100) according to claim 6, characterized in that: The limiting pin (1321) has a slot, the slot is located at the end of the limiting pin (1321), the pin shaft (13211) is located in the slot, the slot has a notch, and the notch faces the baffle (1322).

8. The under-vehicle device (100) according to claim 5, characterized in that: The anti-drop assembly (130) further comprises a fastener (133), one end of the tensioning member (131) is connected to the cabinet (111) via the fastener (133), and the other end of the tensioning member (131) is movably connected to the limiting member (132).

9. The under-vehicle device (100) according to claim 8, characterized in that: At least one of the fastener (133) and the connector (120) is a fastening bolt.

10. A rail vehicle, characterized in that: It comprises a vehicle body and the under-vehicle device (100) according to any one of claims 1 to 9, wherein the under-vehicle device (100) is arranged on the vehicle body.

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