CN210063180U - Locking mechanism of trailer sliding frame - Google Patents
Locking mechanism of trailer sliding frame Download PDFInfo
- Publication number
- CN210063180U CN210063180U CN201920517733.0U CN201920517733U CN210063180U CN 210063180 U CN210063180 U CN 210063180U CN 201920517733 U CN201920517733 U CN 201920517733U CN 210063180 U CN210063180 U CN 210063180U
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- Prior art keywords
- transmission shaft
- locking
- guide sleeve
- sliding frame
- connecting piece
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- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 230000013011 mating Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The locking mechanism of the trailer sliding frame comprises two locking assemblies respectively arranged at two ends of the sliding frame and a transmission shaft extending along the length direction of the sliding frame, wherein each locking assembly comprises two locking units respectively positioned at two sides of the transmission shaft, and each locking unit comprises a guide sleeve fixed on the sliding frame, a bolt movably penetrating in the guide sleeve, an elastic element arranged between the bolt and the guide sleeve and a connecting piece; the outer side end of the plug pin penetrates through the guide sleeve to form a plug end for being inserted into the frame, the elastic element is used for providing elastic stress for pushing the plug end towards the outer side, one end of the connecting piece is connected to the plug pin, the other end of the connecting piece is rotatably connected to the transmission shaft, and the relative rotating axis of the connecting piece and the transmission shaft is staggered with the central axis of the transmission shaft. The utility model can accurately position the sliding frame of the trailer; and, it only needs the rotation through the transmission shaft, can realize four bolts simultaneous actions, simple structure, and can stable operation.
Description
Technical Field
The utility model relates to a commercial vehicle technical field, concretely relates to locking mechanism of trailer balladeur train.
Background
The carriage is usually mounted on the girder of the trailer and serves to adjust the distance between the trailer and the tractor, so that the load can be distributed more reasonably in order to adapt the trailer to different road surfaces. The locking mechanism of the carriage is an important component of the overall carriage assembly, which locks the carriage to the frame to define the relative position of the carriage to the frame. The structure of the existing sliding frame locking mechanism is complex, the positioning is not accurate enough, and the risk of pin removal exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a simple structure, fix a position accurate trailer balladeur train's locking mechanism to prior art not enough.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the locking mechanism of the trailer sliding frame comprises two locking assemblies respectively arranged at two ends of the sliding frame and a transmission shaft extending along the length direction of the sliding frame, wherein each locking assembly comprises two locking units respectively positioned at two sides of the transmission shaft, and each locking unit comprises a guide sleeve fixed on the sliding frame, a bolt movably penetrating in the guide sleeve, an elastic element arranged between the bolt and the guide sleeve and a connecting piece; the outer side end of the plug pin penetrates through the guide sleeve to form a plug end for being inserted into the frame, the elastic element is used for providing elastic stress for pushing the plug end towards the outer side, one end of the connecting piece is connected to the plug pin, the other end of the connecting piece is rotatably connected to the transmission shaft, and the relative rotating axis of the connecting piece and the transmission shaft is staggered with the central axis of the transmission shaft.
A limiting plate is fixedly connected to the plug pin, and the elastic element is clamped between the limiting plate and the guide sleeve; the connecting piece is including connecting portion and the connecting rod that is the U-shaped, and the tip of connecting portion U-shaped is connected respectively in the both sides of limiting plate, and the one end fixed connection of connecting rod is on connecting portion, and the other end passes through the rotatable pin joint of pivot on the transmission shaft.
The both ends of transmission shaft are fixed with a carousel respectively, and the other end of the connecting rod of two locking units of locking subassembly all passes through the pivot pin joint on this carousel.
The elastic element is a spring sleeved outside the bolt, and two ends of the spring are respectively abutted against the guide sleeve and the limiting plate.
This locking mechanism is still including the swinging arms and the pull rod that are located transmission shaft one end, and the one end of swinging arms is fixed on the transmission shaft, and the one end of pull rod is articulated with the other end of swinging arms, is provided with two screens piece on the pull rod, is provided with a joint portion on the balladeur train, this joint portion can inject the corresponding position with two screens piece cooperations in order to with the pull rod respectively.
The both ends of balladeur train are fixed with a mount pad respectively, and two locking subassemblies are arranged in two mount pads respectively, and the tip of mount pad is provided with the through-hole that supplies the end of pegging graft to wear out, is provided with the fixed plate in the mount pad, and uide bushing fixed connection is on this fixed plate.
The beneficial effects of the utility model reside in that:
the utility model can make four bolts simultaneously inserted into the frame or simultaneously separated from the frame, thereby accurately positioning the sliding frame of the trailer; and, it only needs the rotation through the transmission shaft, can realize four bolts simultaneous actions, simple structure, and can stable operation.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a schematic structural view of the locking assembly of fig. 1.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1, 2, and 3, for the locking mechanism of trailer carriage of the present invention, it includes two locking assemblies and a transmission shaft 30, each locking assembly includes two locking units 20, wherein, the two locking assemblies are respectively installed at two ends of the carriage 10, the transmission shaft 30 extends along the length direction of the carriage 10 and is placed at the middle position of the width direction of the carriage 10, the two locking units 20 on each locking assembly are respectively located at two sides of the transmission shaft 30, the two locking units 20 are oppositely disposed, the locking units include a latch 21, a guide sleeve 22, a spring 23 and a connecting piece 25, the guide sleeve 22 is fixed on the carriage 10, the latch 21 is movably threaded in the guide sleeve 22, the latch 21 extends along the width direction of the carriage 10, one end of the latch 21 facing the outside of the carriage 10 is penetrated by the guide sleeve 22 and forms a plugging end, the plugging end is used for inserting into the vehicle frame, a spring 23 is disposed between the plug 21 and the guide sleeve 22, which may be sleeved on the plug 21, and two free ends of the spring 23 abut against the plug 21 and the guide sleeve 22, respectively, so that the elastic stress provided by the spring 23 can push the plug 21 outward, one end of the connecting member 25 is connected to the plug 21, and the other end extends to the transmission shaft 30 toward the middle of the width direction of the carriage 10, and the one end of the connecting member 25 is rotatably connected to the transmission shaft 30, the connecting member 25 is axially staggered from the center of the transmission shaft 30 with respect to the rotation axis of the transmission shaft 30, that is, the other end of the connecting member 25 is connected to an eccentric position of the transmission shaft 30, so that when the transmission shaft 30 is rotated, the transmission shaft 30 pulls the connecting member 25, so that the plug 21 can be retracted toward the inner side of the carriage 10, that the inserting end of the plug 21 is separated from the carriage, and the, so that the plug 21 is inserted into the frame.
When the inserting end of the bolt 21 is required to be separated from the frame, the transmission rod 30 is rotated by external force to drive the connecting pieces 25 of the four locking units 20 to move towards the middle part of the width direction of the sliding frame 10, and then the inserting ends of the four bolts 21 are simultaneously driven to be separated from the frame; when the carriage 10 needs to be locked, the external force is released, the latches 21 of the four locking units 20 are simultaneously moved toward the outside of the carriage 10 by the elastic stress of the respective springs 23, and are inserted into the carriage frame to lock the carriage 10, thereby limiting the carriage 10.
Compared with the prior art, the utility model can enable four bolts to be inserted into the frame or separated from the frame at the same time, thereby being capable of accurately positioning the sliding frame of the trailer; and, it only needs the rotation through the transmission shaft, can realize four bolts simultaneous actions, simple structure, and can stable operation.
As shown in fig. 2, the plug 21 of the present invention is fixedly connected with a position-limiting plate 24, and the spring 23 is clamped between the position-limiting plate 24 and the guide sleeve 22; in order to prevent the bolt 21 from deflecting during sliding, the connecting member 25 includes a U-shaped connecting portion 251 and a connecting rod 252, two ends of the U-shape of the connecting portion 251 are respectively connected to two sides of the limiting plate 24, one end of the connecting rod 252 is fixedly connected to the connecting portion 251, and the other end is pivotally connected to the transmission shaft 30 through a rotating shaft, so that the pulling force of the connecting rod 252 on the bolt 21 is averagely applied to two sides of the bolt 21, thereby ensuring balanced stress on two sides of the bolt 21, avoiding the bolt 21 from swinging left and right during sliding, and further ensuring that the locking mechanism can stably and continuously work normally.
Furthermore, the utility model discloses still be provided with a carousel 31 respectively at the both ends of transmission shaft 30, the other end of connecting rod 252 on two locking units on the locking subassembly is respectively through the pivot pin joint on this carousel 31, so, increased the distance between connecting rod 252 axis of rotation and the transmission shaft 30 the central axis, this other end that makes connecting rod 252 has great radius of rotation to when transmission shaft 30 rotates a less angle, can enough ensure that bolt 21 lateral shifting's distance satisfies the requirement of locking and unblock.
It should be noted that the spring 23 of the present invention is used as an elastic element which can restore the latch 21, but the spring 23 may be replaced by other elastic elements, such as a rubber block with elasticity, etc., in any case, as long as it can provide a tendency to keep the latch 21 moving outwards all the time.
In another preferred embodiment of the present invention, the locking mechanism further comprises a swing rod 41 and a pull rod 42 at one end of the transmission shaft 30, one end of the swing rod 41 is fixed on the transmission shaft 30, one end of the pull rod 42 is hinged at the other end of the swing rod 41, the swing rod 41 is swung by pulling the pull rod 42 to drive the transmission shaft 30 to rotate, in addition, in order to keep the locking mechanism in the locking state or the unlocking state, two locking members are provided on the pull rod 42, correspondingly, a locking portion is provided on the carriage 10, the locking portion can be matched with any one of the two locking members to lock the position of the pull rod 42, so as to make the latch 21 in the position of inserting into the frame and the position of separating from the frame, the locking member can be a groove 421 provided on the pull rod 42, when the groove 421 on the pull rod 42 close to the swing rod 41 is matched with the locking portion on the carriage 10, the latch 21 is in a disengaged condition from the frame and the latch 21 is in an inserted condition into the frame when the recess 421 on the pull rod 42 remote from the sway bar 41 engages the catch on the carriage 10.
In other embodiments, the utility model discloses both ends at balladeur train 10 are fixed with a mount pad 11 respectively, and two locking subassemblies are installed respectively in two mount pads 11, and the tip of mount pad 11 is provided with the through-hole that supplies bolt 21 to pass, still is provided with fixed plate 111 in mount pad 11, and uide bushing 22 is fixed on fixed plate 111, so arrange the locking subassembly in inside mount pad 11, provide the installation basis to the locking subassembly to protect the locking subassembly.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The locking mechanism of the trailer sliding frame is characterized by comprising two locking assemblies respectively arranged at two ends of the sliding frame and a transmission shaft extending along the length direction of the sliding frame, wherein each locking assembly comprises two locking units respectively positioned at two sides of the transmission shaft, each locking unit comprises a guide sleeve fixed on the sliding frame, a bolt movably penetrated in the guide sleeve, an elastic element arranged between the bolt and the guide sleeve and a connecting piece; the outer side end of the plug pin penetrates through the guide sleeve to form a plug end for being inserted into the frame, the elastic element is used for providing elastic stress for pushing the plug end towards the outer side, one end of the connecting piece is connected to the plug pin, the other end of the connecting piece is rotatably connected to the transmission shaft, and the relative rotating axis of the connecting piece and the transmission shaft is staggered with the central axis of the transmission shaft.
2. The trailer carriage lock mechanism as in claim 1, wherein a retainer is fixedly attached to the latch pin, the resilient member being captured between the retainer and the guide sleeve; the connecting piece is including connecting portion and the connecting rod that is the U-shaped, and the tip of connecting portion U-shaped is connected respectively in the both sides of limiting plate, and the one end fixed connection of connecting rod is on connecting portion, and the other end passes through the rotatable pin joint of pivot on the transmission shaft.
3. The trailer carriage latch mechanism as in claim 2, wherein a turntable is fixed to each end of the drive shaft, and the other end of each of the links of the two latch units of the latch assembly is pivotally connected to the turntable by a pivot shaft.
4. The trailer carriage lock mechanism as in claim 2, wherein the resilient member is a spring disposed about the latch pin, the spring having ends abutting the guide sleeve and the limit plate, respectively.
5. The locking mechanism for a trailer carriage as claimed in claim 1, further comprising a swing lever at one end of the drive shaft and a pull lever, the swing lever being fixed at one end to the drive shaft and the pull lever being hinged at one end to the other end of the swing lever, the pull lever being provided with two detents, the carriage being provided with a catch portion which is capable of cooperating with the two detents, respectively, to retain the pull lever in position.
6. The trailer carriage latch mechanism of claim 1 wherein a mounting block is secured to each end of the carriage, the latch assemblies are disposed in the mounting blocks, the mounting blocks have through holes formed in the ends thereof through which the mating ends extend, and the mounting blocks have a retaining plate secured thereto to which the guide sleeves are secured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517733.0U CN210063180U (en) | 2019-04-17 | 2019-04-17 | Locking mechanism of trailer sliding frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517733.0U CN210063180U (en) | 2019-04-17 | 2019-04-17 | Locking mechanism of trailer sliding frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210063180U true CN210063180U (en) | 2020-02-14 |
Family
ID=69437370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920517733.0U Active CN210063180U (en) | 2019-04-17 | 2019-04-17 | Locking mechanism of trailer sliding frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210063180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236339A1 (en) * | 2022-06-05 | 2023-12-14 | 广东富华重工制造有限公司 | Locking mechanism of trailer slider, and trailer slider |
-
2019
- 2019-04-17 CN CN201920517733.0U patent/CN210063180U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236339A1 (en) * | 2022-06-05 | 2023-12-14 | 广东富华重工制造有限公司 | Locking mechanism of trailer slider, and trailer slider |
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