CN209191943U - A kind of locking mechanism of bottom plate, equipment compartment and rolling stock - Google Patents

Abstract

The utility model discloses the locking mechanism, equipment compartment and rolling stock of a kind of bottom plate, wherein the locking mechanism includes: upper lock tube, can push against the upper face of the bottom plate；Lower lock tube is connected with the upper lock tube, can push against the lower face of the bottom plate；Hanging part is hung on upper part；Anti-off bolt, thread rod part can pass through the lower lock tube, and connect with the lower thread of the hanging part, and the head of the Anti-off bolt can be supported the lower lock tube, and the head of the Anti-off bolt is equipped with gap；Rotation preventing device is installed on the lower lock tube, is equipped with the locking bar extended downwardly, the locking bar can be plugged in the gap, to limit the rotation of the Anti-off bolt.The locking mechanism of the provided bottom plate of the utility model is integrated with the function of locking and anticreep simultaneously, and connection is reliable, and the key point that need to be checked in routine maintenance work is less, and operating efficiency is higher, and disassembling operations are more simplified.

Description

A kind of locking mechanism of bottom plate, equipment compartment and rolling stock

Technical field

The utility model relates to lock structure technical fields, and in particular to a kind of locking mechanism of bottom plate, equipment compartment and iron Road vehicles.

Background technique

Most of key equipment of rolling stock is lifted in the equipment compartment under vehicle, and for convenience of overhauling, which has Dismountable bottom plate.But in rolling stock operational process, due to body oscillating etc., the bolt for fixing the bottom plate has It may get loose, and then bottom plate is caused to fall off, influence the normal operation of vehicle.

For this purpose, in the prior art, individual anti-loosing device can also be equipped with for bottom plate, specifically please refer to Fig. 1, Fig. 2, Fig. 1 is a kind of schematic diagram of anti-loosing device of railcar equipment Ceiling in the prior art, and Fig. 2 is railway in the prior art The schematic diagram of another anti-loosing device of vehicle arrangement Ceiling.

As shown in Figure 1 and Figure 2, which mainly includes B-mode baffle 02, safety pin 05 and Anti-off bolt 06, during installation, can be with the 01 pre-buried aluminium block 011 in inside of bottom plate, and swivel nut 012 is inlayed inside pre-buried aluminium block 011, meanwhile, make Second shape baffle 02 and safety pin composition are fixed on bottom plate 01 with structure glue and sunk screw 03, finally, bonding hat aluminium lid 04, keep sunk screw 03 not exposed.Using this structure, when the bolt looseness of 01 surrounding of bottom plate, bottom plate will fall, second shape Baffle 02 and Anti-off bolt 06 can be overlapped on bottom plate hinge 013, to prevent bottom plate 01 from continuing to fall.

But this anti-loosing device is absolute construction, this is just that the conventional maintenance of vehicle increases difficulty, in daily dimension During shield, other than whether the installation bolt of bottom plate 01 to be checked loosens, the state for individually confirming safety pin 05 is also needed, is needed The key point of confirmation is more, and the activity duration is long；Moreover, above-mentioned anti-loosing device, which also will affect the normal of bottom plate 01, beats Push And Release It closes, when normally disassembly bottom plate 01 is to safeguard internal unit, needs to be first the spare time by locking states unlock by above-mentioned anti-loosing device State is set, the installation bolt of bottom plate 01 then can be dismantled, and in mounting base 01, sequence is just the opposite, needs first to twist The installation bolt of upper plate 01, is then adjusted to locking states by idle state for above-mentioned anti-loosing device again, entire to dismount It operates very complicated.

Therefore, how a kind of scheme is provided, is still those skilled in the art's technology urgently to be resolved to overcome drawbacks described above Problem.

Utility model content

The purpose of the utility model is to provide a kind of locking mechanism of bottom plate, equipment compartment and rolling stocks, wherein the bottom plate Locking mechanism be integrated with the function of locking and anticreep simultaneously, connection is reliable, the key of the need inspection in routine maintenance work Point is less, and operating efficiency is higher, and disassembling operations are more simplified.

In order to solve the above technical problems, the utility model provides a kind of locking mechanism of bottom plate, comprising: upper lock tube, it can Push against the upper face of the bottom plate；Lower lock tube is connected with the upper lock tube, can push against the lower face of the bottom plate；Hanging part, It is hung on upper part；Anti-off bolt, thread rod part can pass through the lower lock tube, and the lower thread with the hanging part Connection, the head of the Anti-off bolt can be supported the lower lock tube, and the head of the Anti-off bolt is equipped with gap； Rotation preventing device is installed on the lower lock tube, is equipped with the locking bar extended downwardly, and the locking bar can be plugged in the gap, with limit Make the rotation of the Anti-off bolt.

The locking mechanism of the provided bottom plate of the utility model is matched by upper lock tube, lower lock tube, can with locking bottom plate, The cooperation for passing through hanging part, Anti-off bolt and lower lock tube again, can be supported lower lock tube, and establish lower lock tube and upper portion Part links, and then by floor locking in upper part；And anti-falling piece locking bar and gap it is mating, and can limit anti- The rotation of de- bolt, falls off to avoid Anti-off bolt in operational process from hanging part, while carrying out locking to bottom plate, also collects At the function of anticreep, it is more advantageous to and guarantees being reliably connected for bottom plate and upper part.

More importantly using the above structure, in daily maintenance, it is only necessary to check whether the locking bar of rotation preventing device is also inserted Be connected in the gap of Anti-off bolt, can the basic confirmation tie point it is whether reliable, the key point for needing to check is less, when operation Between it is shorter, operating efficiency is higher, moreover, above-mentioned locking mechanism is integrated component, the function of existing locking, and have the function of anticreep Can, disassembling operations are more simplified.

Optionally, the upper lock tube, the lower lock tube are cylindrical in shape, and the outer rim of the upper end of the upper lock tube is equipped with along diameter To outwardly extending upper flange, the outer rim of the lower end of the lower lock tube is equipped with the lower wing plate extended radially outward；On described Lock tube, the lower lock tube can be plugged in the lockhole of the bottom plate, and with the upper face phase of the upper flange and the bottom plate It supports, the lower face of the lower wing plate and the bottom plate offsets.

Optionally, the locking external threading is connected to the lower lock tube, and the upper lock tube, the lower lock tube and the bottom Also pass through glue connection between plate.

Optionally, the lower lock tube includes inner barrel and outer barrel, is equipped with connection ring flat-plate therebetween, and the lower wing plate is set to The outside wall surface of the outer cylinder, the connection ring flat-plate are equipped with via hole, and the locking bar can be stretched out from the via hole.

Optionally, the rotation preventing device is cylindrical in shape, and is set in the inner cylinder, and the internal diameter of the rotation preventing device and the inner cylinder Outer diameter be adapted；The quantity of the locking bar is multiple, each circumferentially spaced setting of locking bar, the quantity of the via hole and institute It is consistent to state locking bar, each locking bar is plugged in each via hole, and the hole wall of the via hole and the locking bar correspondingly The rotation preventing device can be limited relative to the rotation of the lower lock tube by matching.

Optionally, further include elastic component, the elastic component can offset with the rotation preventing device, with force the rotation preventing device with The connection ring flat-plate offsets.

Optionally, the outside wall surface of the rotation preventing device is equipped with the shaft shoulder, and the lower end of the upper lock tube is equipped with annular groove；The elasticity Part is spring, and is coated at the rotation preventing device, and one end offsets with the shaft shoulder, and the other end is installed in the annular groove, and institute It states spring and is in compressive state.

It optionally, further include split nut, the upper end of the split nut is threadedly connected to the hanging part, the split nut Lower end be threadedly connected to the thread rod part of the Anti-off bolt.

Optionally, the hanging part is articulated bolt, and the thread rod part of the articulated bolt being capable of hanging from upper part The mount hole of ear passes through, and is connected with the split nut, and the head of the articulated bolt is abutted against with the lifting lug.

Optionally, the mount hole is the strip-shaped hole extended transversely.

It optionally, further include elastic cushion, when the Anti-off bolt is tightened, the elastic cushion can be pressed on the anticreep Between the head of bolt and the lower lock tube.

The utility model also provides a kind of equipment compartment, including bottom plate, and the bottom plate has the locking mechanism of above-mentioned bottom plate.

Since the locking mechanism of above-mentioned bottom plate has been provided with technical effect as above, then, there is the bottom plate locking mechanism Equipment compartment also when having similar technical effect, therefore this will not be repeated here.

The utility model also provides a kind of rolling stock, including equipment compartment, and the equipment compartment is above-mentioned equipment compartment.

Since above-mentioned equipment compartment has been provided with technical effect as above, then, the rolling stock with the equipment compartment is also When having similar technical effect, therefore this will not be repeated here.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of anti-loosing device of railcar equipment Ceiling in the prior art；

Fig. 2 is the schematic diagram of another anti-loosing device of railcar equipment Ceiling in the prior art；

Fig. 3 is provided a kind of structural schematic diagram of specific embodiment of the locking mechanism of bottom plate by the utility model；

Fig. 4 is the explosive view of Fig. 3.

The reference numerals are as follows in Fig. 1-2:

01 bottom plate, 011 pre-buried aluminium block, 012 swivel nut, 013 bottom plate hinge, 02 B-mode baffle, 03 sunk screw, 04 shape for hat aluminium Lid, 05 safety pin, 06 Anti-off bolt.

The reference numerals are as follows in Fig. 3-4:

Lock tube, 11 upper flanges on 1；

2 lower lock tubes, 21 inner cylinders, 22 outer cylinders, 221 lower wing plates, 23 connection ring flat-plates；

3 hanging parts；

4 Anti-off bolts, 41 gap, 42 spring washers, 43 plain washers；

5 rotation preventing devices, 51 locking bars, 52 shaft shoulders；

6 elastic components；

7 split nuts；

8 lifting lugs, 81 mount holes；

9 elastic cushions；

S bottom plate, S1 lockhole.

Specific embodiment

In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have The utility model is described in further detail for body embodiment.

The words such as " first " described herein, " second ", be merely for convenience of description scheme same or like two with On structure or component, be not offered as certain particular determination to sequence.

Herein, it is longitudinal with the driving direction of rolling stock, is cross with longitudinal perpendicular direction in the horizontal plane To.

Fig. 3-4 is please referred to, Fig. 3 is provided a kind of knot of specific embodiment of the locking mechanism of bottom plate by the utility model Structure schematic diagram, Fig. 4 are the explosive view of Fig. 3.

As shown in Figure 3, Figure 4, the utility model provides a kind of locking mechanism of bottom plate, comprising: upper lock tube 1 and lower lock tube 2, The two can be connected, and push against the upper face in bottom plate S, lower face respectively, connect pass to establish lock tube with the locking of bottom plate S System, and the connection of the abutting and upper lock tube 1 and lower lock tube 2 of upper lock tube 1 and bottom plate S, can also provide certain for lower lock tube 2 Support, can reduce the bonding strength demand between lower lock tube 2 and bottom plate S；Hanging part 3 and Anti-off bolt 4, hanging part 3 are hung Lower lock tube 2 can be passed through in the thread rod part of upper part, Anti-off bolt 4, and is connect with the lower thread of hanging part 3, to build Linking between vertical Anti-off bolt 4 and upper part, and the head of Anti-off bolt 4 can be supported lower lock tube 2, Jin Erke Linking between lock tube (namely bottom plate S) and upper part is established by Anti-off bolt 4, and Anti-off bolt 4 can be to lower lock Set 2, which is formed, to be stopped, and is loosened, is fallen to avoid lower lock tube 2；The head of rotation preventing device 5, Anti-off bolt 4 is equipped with gap 41, rotation preventing device 5 Lower end be equipped with the locking bar 51 that extends downwardly, rotation preventing device 5 is installed on lower lock tube 2, and locking bar 51 can be plugged in gap 41, with limitation The rotation of Anti-off bolt 4.

So set, matched by upper lock tube 1, lower lock tube 2, it can be with locking bottom plate S, then pass through hanging part 3, anticreep spiral shell The cooperation of bolt 4 and lower lock tube 2 can be supported lower lock tube 2, and establish linking for lower lock tube 2 and upper part, and then general Bottom plate S is locked in upper part；And the locking bar 51 of rotation preventing device 5 and gap 41 is mating, and can limit Anti-off bolt 4 Rotation, falls off to avoid Anti-off bolt 4 in operational process from hanging part 3, while carrying out locking to bottom plate S, is also integrated with The function of anticreep is more advantageous to and ensures being reliably connected for bottom plate S and upper part.

More importantly using the above structure, in daily maintenance, it is only necessary to check rotation preventing device 5 locking bar 51 whether Also be plugged in the gap 41 of Anti-off bolt 4, it can whether the basic confirmation tie point reliable, the key point for needing to check compared with Few, the activity duration is shorter, and operating efficiency is higher；Moreover, above-mentioned locking mechanism be integrated component, the function of existing locking, There is the function of anticreep again, in disassembly process, two kinds of functions can't be interfered with each other, and compared with the prior art, disassembling operations can It significantly simplifies.

By taking installation as an example, first rotation preventing device 5 can be jacked up upwards, and (Anti-off bolt 4 here can be with by Anti-off bolt 4 Using hexagon socket head cap screw, operation is tightened or unscrewed to it to facilitate) it tightens, so that its head is propped up lower lock tube 2 Then support unclamps rotation preventing device 5, under the effect of gravity, the locking bar 51 of rotation preventing device 5 can fall naturally and be inserted into open-minded In mouth 41, installation can be completed.It should be noted that 4 head of Anti-off bolt should be adjusted when Anti-off bolt 4 is finally tightened Setting angle, allows gap 41 and 51 face of locking bar, and then guarantees that locking bar 51 can be naturally fallen in gap 41.

Here, the utility model embodiment is not defined concrete shape, the structure etc. of locking bar 51, gap 41, lock The end (i.e. lower end) of bar 51 can have the conical designs such as tapered circular cone, arc cone, pyramid, the upper end of corresponding gap 41 It can have the navigation designing of taper, to facilitate locking bar 51 to be inserted into gap 41, regardless of using which kind of scheme, as long as can be square Just locking bar 51 is inserted into gap 41.

Specifically, still as shown in figure 3, upper lock tube 1, lower lock tube 2 can be cylindrical in shape, the outer rim of the upper end of upper lock tube 1 It can be equipped with the upper flange 11 extended radially outward, the outer rim of the lower end of lower lock tube 2, which can be equipped with, to be extended radially outward Lower wing plate 221, bottom plate S can be equipped with lockhole S1；Upper lock tube 1, lower lock tube 2 can be plugged in the lockhole S1 of bottom plate S, and with The upper face of upper flange 11 and bottom plate S offset, lower wing plate 221 and the lower face of bottom plate S offset, and then complete lock tube and bottom plate S Between locking.Upper flange 11, lower wing plate 221 structure be not limited thereto, the two can be annular slab, in Fig. 4 Scheme；Alternatively, at least one of the two may include circumferentially spaced several rib plates, with by each rib plate come the bottom of to The plate face up and down of plate S is pushed against, and also can carry out positive lock to bottom plate S in this way.

It can use and be threadedly coupled between upper lock tube 1 and lower lock tube 2, wherein one can be equipped with external screw thread, and another one can To be equipped with internal screw thread, mutually to tighten.Glue connection can also be used between upper and lower two lock tube and bottom plate S, it is specifically, above-mentioned Glue can be set between lockhole S1 inner wall and two lock tube outer walls, between upper flange 11 and bottom plate S upper face and lower wing plate Between 221 and bottom plate S lower face, using this structure, on the one hand, the sealing of corresponding lock tube Yu the junction bottom plate S can be improved On the other hand the connection reliability of two lock tubes Yu bottom plate S also can be further improved in performance.

Lower lock tube 2 may include inner cylinder 21 and outer cylinder 22, connection ring flat-plate 23 is equipped with therebetween, by inner cylinder 21 and outer cylinder 22 are connected as an entirety, and lower wing plate 221 above-mentioned can be set in the outside wall surface of outer cylinder 22；Connection ring flat-plate 23 can be equipped with Hole, rotation preventing device 5 may be mounted between inner cylinder 21 and outer cylinder 22, and its locking bar 51 can be stretched out from via hole.Here via hole It upper end can also be using taper navigation designing possessed by 41 upper end of gap above-mentioned, to facilitate locking bar 51 to pass through from via hole.

Both rotation preventing device 5 can be cylindrical in shape, and its internal diameter can be adapted with the outer diameter of inner cylinder 21, i.e., can substantially phase Deng so that rotation preventing device 5, when being coated at inner cylinder 21, the inner wall of rotation preventing device 5 can be fitted closely with the outer wall of inner cylinder 21, to mention The compactedness of high equipment advantageously reduces the noise in vehicle operation.

For rotation preventing device 5, the quantity of locking bar 51 can be one, or multiple；It is each to lock when to be multiple Bar 51 circumferentially spaced can be arranged, and the quantity for being set to the via hole on connection ring flat-plate 23 can be consistent with locking bar 51, each to lock Bar 51 can be plugged in each via hole correspondingly.Moreover, the size of via hole should be adapted with locking bar 51, so that the hole of via hole Wall can be matched with locking bar 51, to limit rotation preventing device 5 relative to the rotation of lower lock tube 2, to guarantee that this is practical new to a greater degree The reliability of the provided locking mechanism of type.

Further, can also include elastic component 6, which can offset with rotation preventing device 5, with force rotation preventing device 5 with Connection ring flat-plate 23 offsets, i.e. the elastic force that can give rotation preventing device 5 to move downward of elastic component 6, which can be with anti-rotation The self gravity of part 5 matches, so that rotation preventing device 5 remains the trend moved downward.

In this way, during installation, when the external force for acting on rotation preventing device 5 disappears, which can discharge, to cooperate anti-rotation The gravity of part 5 itself, to drive the locking bar 51 of rotation preventing device 5 to be inserted into the gap 41 of Anti-off bolt 4；And the elastic force can continue Effect, can largely overcome vehicle operation due to body oscillating etc., caused by about 5 rotation preventing device jump The situation that dynamic, locking bar 51 is jumped out from gap 41.

In specific scheme, which can be spring, may be other elasticity members such as elastic ball certainly Part；The outside wall surface of rotation preventing device 5 can be equipped with the shaft shoulder 52, and spring can be installed on rotation preventing device 5 with housing, and one end can be with upper lock tube 1 offsets, and the other end can offset with the shaft shoulder 52, and the elastic component 6 can be in compressive state always, constantly to rotation preventing device 5 generations effect.

In conjunction with Fig. 3, the lower end of the inner wall of upper lock tube 1 can be equipped with annular groove, and the upper end of the spring can be installed on ring In slot.So set, annular groove and rotation preventing device 5 can play certain guiding role to the movement of spring, it can be largely Ground avoids radial-play of the spring in telescopic process, and therefrom caused by spring clamping stagnation, be difficult to the situation being operating normally.

Hanging part 3 can be articulated bolt, and the thread rod part of articulated bolt can be from the mount hole of the lifting lug 8 of upper part 81 pass through, and are threadedly coupled with the thread rod part of aforementioned Anti-off bolt 4, and the head of articulated bolt can then offset with lifting lug 8 It connects, to hang on lifting lug 8.Here, it can be equipped with plain washer 43 between the head of articulated bolt and lifting lug 8, connect with increasing Contacting surface product, improves frictional force.

In a kind of scheme, articulated bolt can be connected directly with Anti-off bolt 4, i.e. the lower end of articulated bolt and anticreep In the upper end of bolt, one can be equipped with threaded hole, and another one can be fastened in the threaded hole；In another scheme, Adapter can be equipped between articulated bolt and Anti-off bolt 4, with continued reference to FIG. 3, above-mentioned adapter can be split nut 7, The thread rod part of articulated bolt can be connected with the upper end of split nut 7, and the thread rod part of Anti-off bolt 4 then can be with lock spiral shell The lower end of mother 7 is connected, to construct the threaded connection relation between articulated bolt and Anti-off bolt 4 by the split nut 7.

Comparatively, in the former scheme, since articulated bolt and Anti-off bolt 4 are connected directly, lifting lug 8 and bottom plate S Between mounting distance limited by two bolt lengths, mounting distance between the two is relatively small；And use split nut 7 into The scheme of row switching, then can have bigger mounting distance between lifting lug 8 and bottom plate S, meanwhile, according to used split nut 7 The difference of axial length and two bolts are screwed into the difference of 7 length of split nut, can neatly adjust between lifting lug 8 and bottom plate S Mounting distance.Certainly, the threaded connection between articulated bolt and Anti-off bolt 4 may be implemented in above-mentioned two schemes, When it is implemented, those skilled in the art can select according to actual needs.

The mount hole 81 that lifting lug 8 is arranged in can be existed using the strip-shaped hole extended transversely with easily adjusting hanging part 3 Installation site in lifting lug 8, and then it is can absorb the tolerance of each lockhole S1 on bottom plate S, to guarantee that bottom plate S can easily be done peace Dress.

It further, can also include elastic cushion 9, elastic cushion 9 can be externally fitted to Anti-off bolt 4, tighten in Anti-off bolt 4 When, elastic cushion 9 can be pressed between the head of Anti-off bolt 4 and lower lock tube 2.In conjunction with Fig. 3, the head of Anti-off bolt 4 and bullet Property pad 9 between be also provided with plain washer 43 and spring washer 42, contact area can be improved in plain washer 43, with improve friction Power, and spring washer 42 can then play locking technical effect.

It is arranged such, on the one hand, can control the depth that Anti-off bolt 4 is screwed into split nut 7, easily to control bottom plate S With the mounting distance between lifting lug 8, at the same time it can also avoid the head of Anti-off bolt 4 directly with lower lock tube 2 it is inconsistent, and make It wears and aggravates at lower lock tube 2；On the other hand, elastic cushion 9 has compressible performance, during Anti-off bolt 4 is tightened, bullet Property pad 9 there is certain compression surplus, it is convenient to the angle on adjustment 4 head of Anti-off bolt when tightening so that 41 energy of gap Enough and 51 face of locking bar, moreover, the elastic cushion 9 compressed can generate downward reaction force to the head of Anti-off bolt 4, so that The external screw thread of Anti-off bolt 4 and the internal screw thread of split nut 7 can offset in above-below direction, can with the connection for guaranteeing between the two By property.

A point situation is needed to be described the determination of the final installation site of elastic cushion 9, in a kind of situation, as shown in figure 3, Elastic cushion 9 is finally to be coated at split nut 7, at this point, the axial dimension of split nut 7 is larger；In another case, elastic cushion 9 It is then the thread rod part for being sleeved on Anti-off bolt 4, at this point, the axial dimension of split nut 7 is relatively small.It is appreciated that both Mounting means can effectively fix elastic cushion 9, and in the specific implementation, those skilled in the art can be according to practical need It is selected.

, it is emphasized that although the utility model design of the locking mechanism of the provided bottom plate of the utility model is to railway The improvement of vehicle arrangement Ceiling disconnecting prevention structure, it will be clear that the application range of the locking mechanism is not limited to setting for rolling stock Standby cabin, in fact, its installation that can be applied to plate body in the similar scene such as any kind of cabin, cabinet.

Referring again to Fig. 3, the installation process of the locking mechanism of the provided bottom plate S of the utility model is as follows:

Hanging part 3, plain washer 43 and split nut 7 are installed on lifting lug 8, and carried out prefastened by step S1；

Step S2, mounting base S: firstly, upper lock tube 1, lower lock tube 2, rotation preventing device 5 and elastic component 6 are installed on lockhole In S1；Then, elastic cushion 9, plain washer 43, spring washer 42 and Anti-off bolt 4 are successively installed, rotation preventing device 5 is jacked up upwards, And operate Anti-off bolt 4 and tighten, at this point, meeting automatic traction split nut 7 rotates, and then realizes split nut 7 because screw thread cooperates With tightening for hanging part 3, hanging part 3 is anchored on lifting lug 8；Finally, rotation preventing device 5 is unclamped, in elastic component 6 and rotation preventing device 5 Under the action of self weight, locking bar 51 is inserted into gap 41, to lock Anti-off bolt 4.

Disassembly process and the above-mentioned installation process of the locking mechanism of the provided bottom plate S of the utility model are on the contrary, certainly, dismantle When be mainly based upon the opposite step of above-mentioned steps S2, go to dismantle the locking mechanism in each lockhole S1.

The utility model also provides a kind of equipment compartment, including bottom plate S, and bottom plate S has involved by the respective embodiments described above Bottom plate S locking mechanism.

Since above-mentioned locking mechanism has been provided with technical effect as above, then, the equipment compartment with the locking mechanism Also when having similar technical effect, therefore this will not be repeated here.

The utility model also provides a kind of rolling stock, including equipment compartment, which is above-mentioned equipment compartment.

Since above-mentioned equipment compartment has been provided with technical effect as above, then, the rolling stock with the equipment compartment is also When having similar technical effect, therefore this will not be repeated here.

Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art For member, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as the protection scope of the utility model.

Claims (13)

1. a kind of locking mechanism of bottom plate characterized by comprising

Upper lock tube (1), can push against the upper face of the bottom plate (S)；

Lower lock tube (2) is connected with the upper lock tube (1), can push against the lower face of the bottom plate (S)；

Hanging part (3), is hung on upper part；

Anti-off bolt (4), thread rod part can pass through the lower lock tube (2), and connect with the lower thread of the hanging part (3) It connects, the head of the Anti-off bolt (4) can be supported the lower lock tube (2), and the head of the Anti-off bolt (4) is set There are gap (41)；

Rotation preventing device (5) is installed on the lower lock tube (2), is equipped with the locking bar (51) extended downwardly, and the locking bar (51) can insert The gap (41) are connected to, to limit the rotation of the Anti-off bolt (4).

2. the locking mechanism of bottom plate according to claim 1, which is characterized in that the upper lock tube (1), the lower lock tube (2) It is cylindrical in shape, the outer rim of the upper end of the upper lock tube (1) is equipped with the upper flange (11) extended radially outward, the lower lock tube (2) outer rim of lower end is equipped with the lower wing plate (221) extended radially outward；

The upper lock tube (1), the lower lock tube (2) can be plugged in the lockhole (S1) of the bottom plate (S), and with the upper limb The upper face of plate (11) and the bottom plate (S) offsets, the lower wing plate (221) and the lower face of the bottom plate (S) offset.

3. the locking mechanism of bottom plate according to claim 2, which is characterized in that the upper lock tube (1) is threadedly connected to described Lower lock tube (2), and also pass through glue connection between the upper lock tube (1), the lower lock tube (2) and the bottom plate (S).

4. the locking mechanism of bottom plate according to claim 2, which is characterized in that the lower lock tube (2) include inner cylinder (21) and Outer cylinder (22) is equipped with therebetween connection ring flat-plate (23), and the lower wing plate (221) is set to the outside wall surface of the outer cylinder (22), The connection ring flat-plate (23) is equipped with via hole, and the locking bar (51) can stretch out from the via hole.

5. the locking mechanism of bottom plate according to claim 4, which is characterized in that the rotation preventing device (5) is cylindrical in shape, and is set in The inner cylinder (21), and the internal diameter of institute's rotation preventing device (5) is adapted with the outer diameter of the inner cylinder (21)；

The quantity of the locking bar (51) is multiple, the circumferentially spaced setting of each locking bar (51), the quantity of the via hole and institute It is consistent to state locking bar (51), each locking bar (51) is plugged in each via hole correspondingly, and the hole wall of the via hole with The locking bar (51), which matches, can limit the rotation preventing device (5) relative to the rotation of the lower lock tube (2).

6. the locking mechanism of bottom plate according to claim 4, which is characterized in that further include elastic component (6), the elastic component (6) it can offset with the rotation preventing device (5), to force the rotation preventing device (5) to offset with the connection ring flat-plate (23).

7. the locking mechanism of bottom plate according to claim 6, which is characterized in that the outside wall surface of the rotation preventing device (5) is equipped with axis The lower end of shoulder (52), the upper lock tube (1) is equipped with annular groove；

The elastic component (6) is spring, and is coated at the rotation preventing device (5), and one end offsets with the shaft shoulder (52), the other end It is installed in the annular groove, and the spring is in compressive state.

8. the locking mechanism of bottom plate described in any one of -7 according to claim 1, which is characterized in that further include split nut (7), institute The upper end for stating split nut (7) is threadedly connected to the hanging part (3), and the lower end of the split nut (7) is threadedly connected to institute State the thread rod part of Anti-off bolt (4).

9. the locking mechanism of bottom plate according to claim 8, which is characterized in that the hanging part (3) is articulated bolt, described The thread rod part of articulated bolt can be passed through from the mount hole (81) of the lifting lug (8) of upper part, and with the split nut (7) phase Even, the head of the articulated bolt is abutted against with the lifting lug (8).

10. the locking mechanism of bottom plate according to claim 9, which is characterized in that the mount hole (81) is to extend transversely Strip-shaped hole.

11. the locking mechanism of bottom plate according to claim 8, which is characterized in that further include elastic cushion (9), in the anticreep When bolt (4) is tightened, the elastic cushion (9) can be pressed on the Anti-off bolt (4) head and the lower lock tube (2) it Between.

12. a kind of equipment compartment, including bottom plate (S), which is characterized in that the bottom plate (S) has as any in claim 1-11 The locking mechanism of the item bottom plate (S).

13. a kind of rolling stock, including equipment compartment, which is characterized in that the equipment compartment is equipment compartment described in claim 12.