CN213144978U

CN213144978U - Connecting assembly and carriage with same

Info

Publication number: CN213144978U
Application number: CN202021827525.XU
Authority: CN
Inventors: 李明理; 王健男
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-05-07
Anticipated expiration: 2030-08-27

Abstract

The utility model provides a coupling assembling and have its carriage, coupling assembling are used for fixing the component in rail vehicle's carriage, and coupling assembling includes: the bolt is used for penetrating through a first mounting hole of the member and a second mounting hole on a body plate of the carriage; the locking structure is matched and connected with the screw to fix the component on the vehicle body plate; the locking structure is provided with a thread part and a positioning part, the thread part is used for being in threaded connection with a screw, and the positioning part is used for being connected with the vehicle body plate so as to fix the locking structure on the vehicle body plate. The utility model discloses a coupling assembling has solved the unreliable problem of component installation in the carriage among the prior art.

Description

Connecting assembly and carriage with same

Technical Field

The utility model relates to a rail vehicle technical field particularly, relates to a coupling assembling and have its carriage.

Background

At present, in the operation of a railway train on a line, a structure in a carriage can be impacted by high-frequency vibration, although the amplitude is not large, the connecting piece can bring non-negligible influence to the train structure by the high-frequency vibration for a long time, particularly, passengers directly contact an interior structure, and the looseness of the interior structure can bring potential safety hazards to the passengers.

The existing train built-in structure mounting connecting piece mostly adopts fixing modes such as bolt and nut and screw connection, the connecting piece is convenient to mount, but is easy to loosen and fall off when being subjected to high-frequency vibration in the operation process, meanwhile, the simple mode adopting threaded connection has poor repeated dismounting performance, the phenomenon of 'thread slipping' can occur after being dismounted for many times, and the bolt and nut connection mode needs an operation space and cannot be used when the space is limited.

In addition, the use of the existing connecting piece often brings the problem of local collapse and deformation caused by stress concentration to the surface of the mounting piece, and the mounting structure is not beautiful.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a coupling assembling and have its carriage to solve the unreliable problem of carriage internals installation among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a coupling assembly for fixing a member in a carriage of a railway vehicle, the coupling assembly including: the bolt is used for penetrating through a first mounting hole of the member and a second mounting hole on a body plate of the carriage; the locking structure is matched and connected with the screw to fix the component on the vehicle body plate; the locking structure is provided with a thread part and a positioning part, the thread part is used for being in threaded connection with a screw, and the positioning part is used for being connected with the vehicle body plate so as to fix the locking structure on the vehicle body plate.

Further, location portion includes a plurality of elasticity cards, and a plurality of elasticity cards set up at intervals each other, and wherein, elasticity card is equipped with the constant head tank, and locking structure passes through the constant head tank and is connected with the car body board joint.

Further, the connection assembly further comprises: the screw seat is used for being connected with the component, so that the screw is connected with the component through the screw seat.

Furthermore, the screw seat is provided with an accommodating concave part and a through hole, one end of the screw, which is far away from the locking structure, is accommodated in the accommodating concave part, one end of the screw, which is close to the locking structure, extends out of the accommodating concave part from the through hole, one end of the screw seat, which is located at the opening of the accommodating concave part, is provided with a flanging which extends outwards, and the flanging is connected with the component.

Further, the connection assembly further comprises: the reinforcing plate is arranged on the surface of one side, close to the body plate, of the component, wherein at least one part of the screw seat is sunk into the first mounting hole, and the flanging of the screw seat is connected with the surface of one side, far away from the reinforcing plate, of the component; the first cushion block is arranged in the first mounting hole and located between the reinforcing plate and the screw seat, and the screw is sequentially arranged on the screw seat, the first cushion block and the reinforcing plate in a penetrating mode so as to be connected with the component.

Further, the connection assembly further comprises: and a second spacer disposed between the member and the body panel to space the member and the body panel a predetermined distance.

Further, the connection assembly further comprises: the buffer pad, the buffer pad setting is carried out the damping between second cushion and automobile body board.

Further, coupling assembling still includes anticreep piece, and the anticreep piece overlaps and establishes on the screw and the two can the relative slip, and the anticreep piece is located between the one end that locking structure and screw kept away from locking structure, and the screw is close to the spacing backstop of one end and the anticreep piece of locking structure.

Further, the screw has screwhead, changeover portion and screw thread section, and the changeover portion is located screwhead and screw thread section between and for the reducing section, and the anticreep spare cover is established on the changeover portion and is set up between component and automobile body board, and wherein, the anticreep spare is the loop configuration, and the anticreep spare inboard is equipped with the screw to when the screw moves towards the outside of component, the anticreep spare moves with the backstop screw with the screw thread section cooperation.

According to the utility model discloses a further aspect provides a carriage, including component, coupling assembling and automobile body board, the component passes through coupling assembling to be fixed on the automobile body board, and coupling assembling is foretell coupling assembling.

Use the technical scheme of the utility model's coupling assembling can make the screw firmly fix on the automobile body board through setting up locking structure. Specifically, locking structure's screw portion is equivalent to the nut, screw portion screws up on the screw of screw, thereby link together the component with the automobile body board on the automobile body, in order to prevent that locking structure from moving because of the relative screw of vibration effect in the vehicle operation and lax, locking structure is last still to be provided with the location portion that is used for being connected with the automobile body board, thereby location portion and automobile body board are connected and prevent that locking structure from moving the problem that leads to appearing not hard up between locking structure and the screw relatively the automobile body board, the problem of the screw is easily become flexible and lead to the interior component installation insecure of carriage in long-time vehicle operation process has been solved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a cross-sectional view of an embodiment of a connection assembly connecting a member to a body panel within a vehicle cabin in accordance with the present invention;

fig. 2 shows a schematic view of a screw embodiment of a connection assembly according to the present invention;

fig. 3 shows a schematic view of a locking structure embodiment of a connection assembly according to the present invention;

figure 4 shows a schematic view of an embodiment of a retaining member of a connection assembly according to the present invention;

fig. 5 shows a schematic view of an embodiment of a screw seat of a connection assembly according to the present invention.

Wherein the figures include the following reference numerals:

10. a member; 20. a vehicle body panel; 30. a screw; 31. a screw head; 32. a transition section; 33. a threaded segment; 40. a locking structure; 41. a threaded portion; 42. an elastic card; 421. positioning a groove; 50. a screw seat; 51. an accommodating recess; 52. flanging; 60. a reinforcing plate; 70. a first cushion block; 80. a second cushion block; 90. a drop-off prevention member; 100. a cushion pad.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to solve the unreliable problem of carriage internals 10 installation among the prior art, the utility model provides a coupling assembling and have its carriage.

Referring to fig. 1 to 5, a coupling assembly for securing a member 10 within a car of a railway vehicle comprises: a screw 30 and a locking structure 40, wherein the screw 30 is used for being arranged in a first mounting hole of the member 10 and a second mounting hole on the body plate 20 of the carriage in a penetrating way; the locking structure 40 is connected with the screw 30 in a matching way so as to fix the component 10 on the body plate 20; the locking structure 40 is provided with a threaded portion 41 and a positioning portion, the threaded portion 41 is used for being in threaded connection with the screw 30, and the positioning portion is used for being connected with the body panel 20 so as to fix the locking structure 40 on the body panel 20.

The utility model provides a coupling assembling can make screw 30 firmly fix on automobile body board 20 through setting up locking structure 40. Specifically, the threaded portion 41 of the locking structure 40 corresponds to a nut, the threaded portion 41 is screwed on the thread of the screw 30, so as to connect the component 10 with the body plate 20 on the vehicle body, in order to prevent the locking structure 40 from loosening relative to the screw 30 due to vibration during the vehicle running, a positioning portion for connecting with the body plate 20 is further arranged on the locking structure 40, the positioning portion is connected with the body plate 20, so as to prevent the locking structure 40 from moving relative to the body plate 20 to cause loosening between the locking structure 40 and the screw 30, and the problem that the screw 30 is easy to loosen during the long-time vehicle running to cause loose installation of the component 10 in the vehicle compartment is solved.

As shown in fig. 3, the positioning portion includes a plurality of elastic clamping pieces 42, the elastic clamping pieces 42 are arranged at intervals, wherein the elastic clamping pieces 42 are provided with positioning grooves 421, and the locking structure 40 is connected with the body panel 20 in a clamping manner through the positioning grooves 421.

As shown in fig. 1 and 3, the number of the elastic clamping pieces 42 in this embodiment may be two, two elastic clamping pieces 42 are symmetrically disposed, one end of each elastic clamping piece 42 is connected to the threaded portion 41, the threaded portion 41 is of a ring structure, a thread is disposed inside the threaded portion, and the other end of each elastic clamping piece 42 is a free end, so that the elastic clamping pieces 42 can move closer to or away from the threaded portion 41. During specific locking, the screw 30 firstly passes through the component 10 and the vehicle body plate 20 which need to be connected in sequence, the thread part 41 of the locking structure 40 is sleeved on the screw 30 and matched with the thread on the screw 30, the elastic shifting piece is bent to form a sunken positioning groove 421, two elastic clamping pieces 42 are extruded to be close to each other, then the positioning groove 421 is clamped with the vehicle body plate 20, and the elastic clamping pieces 42 are loosened to fix the locking structure 40 and the vehicle body plate 20 together.

Further, when the two elastic clamping pieces 42 are not stressed, the distance between the two positioning grooves 421 is smaller than the diameter of the mounting hole on the body panel 20, so that the elastic clamping pieces 42 of the locking structure 40 can be elastically restored by the stress generated by the compression mounting to tightly connect the locking structure 40 with the body panel 20 without falling off in the use process.

As shown in fig. 1, the connection assembly further includes a screw receptacle 50, the screw receptacle 50 being adapted to be connected with the component 10 such that the screw 30 is connected with the component 10 through the screw receptacle 50. The screw seat 50 has an accommodating recess 51 and a through hole, one end of the screw 30 away from the locking structure 40 is accommodated in the accommodating recess 51, one end of the screw 30 close to the locking structure 40 extends out of the through hole to the outside of the accommodating recess 51, one end of the screw seat 50 at the opening of the accommodating recess 51 has a flange 52 extending outwards, and the flange 52 is connected with the component 10.

As shown in fig. 1 and 5, the screw seat 50 of the present embodiment is configured as a "zigzag" structure, the screw head 31 of the screw 30, i.e. the screw head 31, is disposed in the receiving recess 51, and is sunk into the first mounting hole of the component 10 and does not protrude from the outer surface of the component 10, further, the application of the screw seat 50 increases the contact area of the outer panel of the component 10, i.e. the stress on the outer panel of the component 10 is effectively dispersed, and the problems of local collapse and deformation of the surface of the component 10 caused by stress concentration can be greatly reduced.

As shown in fig. 1, the connecting assembly further includes a reinforcing plate 60 and a first pad 70, the reinforcing plate 60 being disposed on a surface of the member 10 on a side close to the vehicle body panel 20. Wherein at least a part of the screw seat 50 is sunk into the first mounting hole and the flange 52 of the screw seat 50 is connected with the surface of the member 10 on the side far away from the reinforcing plate 60; the first block 70 is disposed in the first mounting hole and located between the reinforcing plate 60 and the screw seat 50, and the screw 30 is sequentially inserted through the screw seat 50, the first block 70 and the reinforcing plate 60 to form a connection with the component 10.

As shown in fig. 1, in the embodiment, the reinforcing plate 60 is a steel plate, the steel plate is fixed on the inner side surface of the member 10 by glue application and rivet pulling, the member 10 and the reinforcing steel plate are integrated, and the existence of the reinforcing steel plate greatly increases the stress area of the inner side panel of the member 10, so that the stress of the inner side panel of the member 10 is effectively dispersed; the use of the screw seat 50 increases the stressed area of the anti-loose screw 30 and the outer side panel of the component 10, and the use of the first cushion block 70 makes the screw seat 50 stressed little or not stressed, i.e. the stress on the outer side of the component 10 is effectively dispersed.

In the particular embodiment shown in FIG. 1, the connection assembly further includes a second spacer 80, the second spacer 80 being disposed between the member 10 and the body panel 20 such that the member 10 and the body panel 20 are spaced a predetermined distance apart.

According to the size requirement between the member 10 and the body panel 20, a second pad is placed on the reinforced steel plate in advance, wherein the center of the second pad is provided with a hole, and the back adhesive is bonded with the reinforced steel plate. The second shim plate can effectively prevent the deformation of the member 10 or the body panel 20 caused by the force applied by the tightening force of the screws 30.

In the particular embodiment shown in FIG. 1, the attachment assembly further includes a cushion 100, the cushion 100 being disposed between the second pad 80 and the body panel 20 for damping vibrations.

As shown in FIG. 1, the cushion pad 100 in this embodiment is made of an elastic material or felt to reduce the influence of vehicle vibration on the connecting assembly.

In the specific embodiment shown in fig. 1, the connecting assembly further includes a separation-preventing member 90, the separation-preventing member 90 is sleeved on the screw 30 and can slide relative to the screw 30, the separation-preventing member 90 is located between the locking structure 40 and one end of the screw 30 far away from the locking structure 40, and one end of the screw 30 close to the locking structure 40 is limited and stopped by the separation-preventing member 90. The screw 30 has a screw head 31, a transition section 32 and a threaded section 33, the transition section 32 is located between the screw head 31 and the threaded section 33 and is a reducing section, and the anti-dropping member 90 is sleeved on the transition section 32 and is arranged between the member 10 and the body panel 20. The anti-separation element 90 is an annular structure, and a thread is disposed on the inner side of the anti-separation element 90, so that when the screw 30 moves toward the outer side of the component 10, the anti-separation element 90 cooperates with the thread section 33 to stop the movement of the screw 30.

As shown in fig. 1 and 4, in the present embodiment, the retaining member 90 is used to prevent the screw 30 from falling off, the retaining member 90 is a ring structure, a thread is provided inside the ring structure, and the retaining member 90 is disposed between the body panel 20 and the member 10, so that when the screw 30 is disengaged from the locking structure 40, the thread inside the retaining member 90 is further engaged with the threaded section 33 on the screw 30, thereby preventing the screw 30 from moving further and falling off from one side of the member 10.

Specifically, the transition section 32 in the middle of the locking screw 30 is an optical axis and is free of threads, the diameter of the transition section is smaller than that of the threaded section 33, and the tail of the screw 30 is provided with machined threads. The anti-slip element 90 has a machined thread on the inside that mates with it. When the locking screw 30 is disengaged from the nut, the locking screw 30 cannot be disengaged from the member 10 because the disengagement preventing member 90 has an internal thread for engaging with the locking screw 30.

The utility model also provides a carriage, including component 10, coupling assembling and automobile body board 20, component 10 passes through coupling assembling to be fixed on automobile body board 20, and coupling assembling is foretell coupling assembling.

The utility model discloses a carriage adopts foretell coupling assembling to fix the component 10 in the carriage to can be effective guarantee component 10 can firmly be fixed on body board 20 really.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

the utility model discloses a set up location portion on locking structure 40 and be connected with automobile body board 20 to solved locking structure 40 and can not be when the vibration from the problem that screw 30 breaks away from, in addition, subside screwhead 31 in the mounting hole of component 10 through setting up screw seat 50, thereby do not bulge in the surface of component 10, more pleasing to the eye, through using blotter 100, reduced the influence of vehicle vibration to coupling assembling, reduced the deformation and so on of junction through setting up the reinforcement steel sheet.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection assembly for securing a member (10) within a car body of a railway vehicle, characterized in that the connection assembly comprises:

a screw (30), wherein the screw (30) is used for being arranged in a first mounting hole of the component (10) and a second mounting hole on a vehicle body plate (20) of the carriage in a penetrating mode;

a locking structure (40), wherein the locking structure (40) is matched and connected with the screw (30) to fix the component (10) on the vehicle body plate (20);

the locking structure (40) is provided with a threaded portion (41) and a positioning portion, the threaded portion (41) is used for being in threaded connection with the screw (30), and the positioning portion is used for being connected with the vehicle body plate (20) so as to fix the locking structure (40) on the vehicle body plate (20).

2. The connecting assembly according to claim 1, wherein the positioning portion comprises a plurality of elastic clamping pieces (42), the elastic clamping pieces (42) are arranged at intervals, wherein the elastic clamping pieces (42) are provided with positioning grooves (421), and the locking structure (40) is connected with the vehicle body plate (20) in a clamping mode through the positioning grooves (421).

3. The connection assembly of claim 1, further comprising:

a screw receptacle (50), the screw receptacle (50) being adapted to be connected to the component (10) such that the screw (30) is connected to the component (10) via the screw receptacle (50).

4. The connecting assembly according to claim 3, wherein the screw seat (50) has a receiving recess (51) and a through hole, one end of the screw (30) away from the locking structure (40) is received in the receiving recess (51), one end of the screw (30) close to the locking structure (40) protrudes from the through hole to the outside of the receiving recess (51), one end of the screw seat (50) at the opening of the receiving recess (51) has an outwardly protruding flange (52), and the flange (52) is connected with the component (10).

5. The connection assembly of claim 3, further comprising:

a reinforcing plate (60), wherein the reinforcing plate (60) is arranged on the surface of the side, close to the vehicle body plate (20), of the component (10), at least one part of the screw seat (50) is sunk into the first mounting hole, and the flanging of the screw seat (50) is connected with the surface of the side, away from the reinforcing plate (60), of the component (10);

the first cushion block (70) is arranged in the first mounting hole and located between the reinforcing plate (60) and the screw base (50), and the screw (30) sequentially penetrates through the screw base (50), the first cushion block (70) and the reinforcing plate (60) to be connected with the component (10).

6. The connection assembly of claim 1, further comprising:

a second spacer (80), the second spacer (80) being disposed between the member (10) and the body panel (20) to space the member (10) and the body panel (20) a predetermined distance apart.

7. The connection assembly of claim 6, further comprising:

a cushion pad (100), the cushion pad (100) being disposed between the second pad (80) and the body panel (20) for damping vibrations.

8. The connecting assembly of claim 1, further comprising a release-preventing member (90), wherein the release-preventing member (90) is sleeved on the screw (30) and can slide relative to the screw, the release-preventing member (90) is located between the locking structure (40) and one end of the screw (30) far away from the locking structure (40), and one end of the screw (30) close to the locking structure (40) and a limit stop of the release-preventing member (90).

9. The connection assembly according to claim 8, wherein the screw (30) has a screw head (31), a transition section (32) and a threaded section (33), the transition section (32) is located between the screw head (31) and the threaded section (33) and is a reduced diameter section, the anti-slip member (90) is sleeved on the transition section (32) and is arranged between the member (10) and the body plate (20), wherein the anti-slip member (90) is of an annular structure, and the anti-slip member (90) is internally provided with threads so that when the screw (30) moves towards the outside of the member (10), the anti-slip member (90) cooperates with the threaded section (33) to stop the screw (30) from moving.

10. A carriage comprising a member (10), a connection assembly and a body panel (20), said member (10) being fixed to said body panel (20) by means of said connection assembly, characterized in that said connection assembly is a connection assembly according to any one of claims 1 to 9.