CN113771949A - Trailer telescopic frame - Google Patents
Trailer telescopic frame Download PDFInfo
- Publication number
- CN113771949A CN113771949A CN202111345332.XA CN202111345332A CN113771949A CN 113771949 A CN113771949 A CN 113771949A CN 202111345332 A CN202111345332 A CN 202111345332A CN 113771949 A CN113771949 A CN 113771949A
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- China
- Prior art keywords
- outer sleeve
- clamping
- telescopic
- trailer
- inner telescopic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/14—Understructures, i.e. chassis frame on which a vehicle body may be mounted of adjustable length or width
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Tents Or Canopies (AREA)
Abstract
The invention discloses a trailer telescopic frame, belonging to the field of trailer frames, comprising: the outer sleeve beam is hollow and is in a U shape with an opening at the upper part; one end of the inner telescopic beam is inserted into the outer sleeve beam, and the inner telescopic beam can move in the outer sleeve beam; the body of the inner telescopic beam is provided with a beam connecting hole, and the outer wall of the outer sleeve beam is provided with a beam inserting hole which corresponds to the beam connecting hole in position and is consistent in size; the connection yielding part is arranged at the opening at the upper part of the outer sleeve beam and is positioned at one end of the outer sleeve beam close to the inner telescopic beam. Through the design that the inner telescopic beam can slide in the outer sleeve beam, the position between the outer sleeve beam and the inner telescopic beam can be quickly adjusted to a proper position during adjustment; through the setting of connecting the position of letting, make things convenient for the chucking hoop and overcoat roof beam, the interior roof beam that stretches out and draws back between all contact, can realize well fixing between overcoat roof beam, the interior roof beam that stretches out and draws back.
Description
Technical Field
The invention relates to the technical field of trailer frames, in particular to a telescopic frame of a trailer.
Background
The semitrailer is a heavy transport vehicle connected with a semitrailer head through a towing pin.
Due to the fact that the semitrailer is different in use condition, the frame with the proper length needs to be installed in a connected mode, and therefore the frame of the semitrailer needs to be replaced frequently to adapt to the use place.
The existing frame connected with the semitrailer is usually of a rigid integral structure, so that the use limitation is caused, the frame with various lengths is required to be equipped for meeting the use requirement, the cost is high, the occupied area for storage is large, and the maintenance cost is high.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a trailer telescopic frame which can be telescopically adjusted, can be adapted to semitrailers with different wheelbases, lengths and other requirements, can be adjusted at any time according to the requirements of the use environment, has good adaptability and universality and low cost, and avoids the defect that the frame of the existing semitrailer needs to be frequently replaced.
In order to solve the technical problems, the invention adopts the following technical scheme: the invention provides a trailer telescopic frame, comprising: the outer sleeve beam is hollow and is in a U shape with an opening at the upper part; one end of the inner telescopic beam is inserted into the outer sleeve beam, and the inner telescopic beam can move in the outer sleeve beam; the body of the inner telescopic beam is provided with a through beam connecting hole, and the outer wall of the outer sleeve beam is provided with a through beam inserting hole which corresponds to the beam connecting hole in position and has the same size; the connection yielding part is arranged at the edge of the U-shaped opening at the upper part of the outer sleeve beam and is positioned at one end of the outer sleeve beam sleeved with the inner telescopic beam; the clamping hoop is clamped on the outer wall of the outer sleeve beam and the inner telescopic beam which are sleeved with each other; and the upper supporting clamping plate is connected to the end part of one end, sleeved with the inner telescopic beam, of the outer sleeve beam, is connected with the edge of the U-shaped opening of the end, and is clamped on the inner telescopic beam.
Furthermore, a plurality of parallel clamping grooves are formed in the upper surface of the inner telescopic beam at equal intervals, and clamping strips matched with the clamping grooves are arranged on the inner surface of the upper supporting clamping plate and the inner top wall of the clamping hoop.
Furthermore, the clamping groove is a V-shaped groove, and the bottom end of the clamping groove is arc-shaped.
Furthermore, the connection yielding part is a sunken notch groove formed in the edge of the U-shaped opening of the outer sleeve beam, and the end part of the connection yielding part is arc-shaped.
Further, the distance between two adjacent clamping grooves is the same as the distance between two adjacent beam connecting holes and the distance between two adjacent beam inserting holes.
Furthermore, the number of the clamping hoops is two, and the two clamping hoops are distributed at two ends of the connection yielding part.
Furthermore, the clamping hoop comprises two oppositely-combined clamping frames, the upper ends of the two clamping frames are rotatably connected through a connecting pin, the clamping strips on the clamping hoop are two sections which are disconnected, the two sections of clamping strips are respectively positioned on the inner top walls of the two clamping frames, the bottom ends of the two clamping frames are respectively provided with a connecting plate, and the connecting plates are connected through a connecting piece.
Further, the connecting piece is a connecting bolt.
Furthermore, two the opposite side of card frame all is provided with the location lug, the locating hole that corresponds and the looks adaptation with the location lug position is seted up on the outer wall of overcoat roof beam and the position that corresponds with the location lug.
Furthermore, the number of the positioning holes in the outer sleeve beam is two, the distance between the two positioning holes is an integral multiple of the distance between the two adjacent clamping grooves, and the horizontal distance between the positioning hole close to the upper supporting clamping plate and the clamping strip on the inner surface of the upper supporting clamping plate is equal to the distance between the two adjacent clamping grooves.
The invention has the beneficial effects that:
(1) through the design that the inner telescopic beam can slide in the outer sleeve beam, when the adjusting is carried out, the outer sleeve beam and the inner telescopic beam can be quickly adjusted to a proper position.
(2) Through the setting of connecting the position of letting, make things convenient for the chucking hoop and overcoat roof beam, the interior roof beam that stretches out and draws back between all contact, can realize well fixing between overcoat roof beam, the interior roof beam that stretches out and draws back.
(3) Through the setting of last support cardboard for go up the support cardboard and further strengthen being connected between overcoat roof beam, the interior flexible roof beam, avoid the chucking hoop to concentrate and cause overcoat roof beam, interior flexible roof beam stress concentration, easily buckle etc. to overcoat roof beam, interior flexible roof beam effort.
(4) The telescopic frame of the trailer can be telescopically adjusted, can be adapted to semitrailers with different wheelbases, lengths and other requirements, can be adjusted at any time according to the requirements of the use environment, and has the advantages of good adaptability and universality, low maintenance cost of the telescopic frame of the trailer, no need of frames with various lengths and occupation of storage sites.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic top view of the structure of FIG. 1 according to the present invention.
Fig. 3 is a schematic structural view of the inner telescopic beam of the present invention.
Fig. 4 is a schematic structural view of the outer sleeved beam of the present invention.
Fig. 5 is a schematic sectional view a-a of the outer shell beam of the present invention.
Fig. 6 is a schematic structural view of the clip of the present invention.
In the figure: the telescopic beam comprises an outer sleeve beam 1, an inner telescopic beam 2, a connection yielding part 3, a support clamping plate 4, a clamping hoop 5, a clamping frame 51, a connecting plate 52, a positioning lug 53, a beam connecting hole 6, a clamping groove 7, a clamping strip 8, a beam splicing hole 9 and a positioning hole 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1 to 6, the present invention provides a telescopic frame of a trailer, comprising: the clamping device comprises an outer sleeve beam 1, an inner telescopic beam 2, a connection relief part 3, a clamping hoop 5 and an upper supporting clamping plate 4, wherein the outer sleeve beam 1 is hollow and is U-shaped with an opening at the upper part; one end of the inner telescopic beam 2 is inserted into the outer sleeve beam 1, and the inner telescopic beam 2 can move in the outer sleeve beam 1; a beam connecting hole 6 is formed in the body of the inner telescopic beam 2, and a beam inserting hole 9 which corresponds to the beam connecting hole 6 in position and is consistent in size is formed in the outer wall of the outer sleeve beam 1; the connection yielding part 3 is arranged at an opening at the upper part of the outer sleeve beam 1, and the connection yielding part 3 is positioned at one end of the outer sleeve beam 1 which is sleeved with the inner telescopic beam 2; the clamping hoop 5 is clamped on the outer wall of the outer sleeve beam 1 and the outer wall of the inner telescopic beam 2 which are sleeved; the upper supporting clamping plate 4 is connected to the end part of one end, sleeved with the inner telescopic beam 2, of the outer sleeve beam 1, connected with the edge of the U-shaped opening of the end and clamped on the inner telescopic beam 2.
A plurality of parallel clamping grooves 7 are formed in the upper surface of the inner telescopic beam 2 at equal intervals, and clamping strips 8 matched with the clamping grooves 7 are arranged on the surface of the upper supporting clamping plate 4 and the inner top wall of the clamping hoop 5. Through the setting of card strip 8 for go up the card that supports cardboard 4 and 5 homoenergetic and correspond and go into including draw-in groove 7 of flexible roof beam 2, the cooperation of card strip 8 and draw-in groove 7 makes can not relative movement after the chucking between interior flexible roof beam 2, the overcoat roof beam 1, thereby can the fixed length adjust between making interior flexible roof beam 2, the overcoat roof beam 1.
The clamping groove 7 is a V-shaped groove, and the bottom end of the clamping groove 7 is arc-shaped. The setting of draw-in groove 7 of this shape, when cooperating with card strip 8, can lead card strip 8 for card strip 8 is gone into to the middle part card of draw-in groove 7, makes card strip 8 can remove to the bottom of draw-in groove 7 naturally under the effect of draw-in groove 7, thereby makes the cooperation precision higher between interior flexible roof beam 2, the overcoat roof beam 1.
Connect and let position portion 3 for offering and be the breach groove that sinks the form on the open-ended border of overcoat roof beam 1U type form, and connect and let 3 tip in position portion be the arc. The end part of the connection position-giving part 3 is arc-shaped, so that the problems of stress concentration and elasticity mechanics, namely the phenomenon that the stress in an object is locally increased, generally appear in places with sharp changes of the shape of the object, such as gaps, holes, grooves and rigid constraint parts, are avoided. The stress concentration can cause fatigue cracks on the object and also can cause static load fracture of parts made of brittle materials. At the stress concentration, the maximum value of the stress (peak stress) is related to factors such as the geometry and loading manner of the object. The locally increased stress decays rapidly with increasing distance from the peak stress point. Since the peak stress often exceeds the yield limit (see the mechanical properties of the material) resulting in a redistribution of stress, the actual peak stress is often lower than the theoretical peak stress calculated from elastic mechanics. Through the design of this arc, can avoid stress concentration and the condition of breaching appears.
The distance between two adjacent clamping grooves 7 is the same as the distance between two adjacent beam connecting holes 6 and the distance between two adjacent beam inserting holes 9. Therefore, the inner telescopic beam 2 and the outer sleeve beam 1 and the beam inserting holes 9 and the beam connecting holes 6 can be in one-to-one correspondence in each adjustment.
The number of the clamping hoops 5 is two, and the two clamping hoops 5 are distributed at two ends of the connection yielding part 3.
The clamp hoop 5 comprises two clamp frames 51 which are closed oppositely, the upper ends of the clamp frames 51 are rotatably connected through a connecting pin, two sections of clamp strips 8 on the clamp hoop 5 are disconnected, the two sections of clamp strips 8 are respectively located on the inner top walls of the two clamp frames 51, the two sections of clamp strips are respectively provided with a connecting plate 52, and the connecting plates 52 are connected through a connecting piece.
Preferably, the connecting piece is a connecting bolt.
Preferably, two the relative side of card frame 51 all is provided with positioning convex block 53, the locating hole 10 that corresponds and looks adaptation with positioning convex block 53 position is seted up to the position that corresponds on the outer wall of overcoat roof beam 1 and with positioning convex block 53, the locating hole 10 on the overcoat roof beam 1 is two, and the interval of two locating holes 10 is the integral multiple of two adjacent draw-in grooves 7 intervals, and is close to the locating hole 10 of last support cardboard 4 and the horizontal distance between the card strip 8 of the internal surface of last support cardboard 4 and equals the interval of two adjacent draw-in grooves 7.
The working principle is as follows: during adjustment, the connecting piece between the two connecting plates 52 is removed, so that the two clamping frames 51 are opened through rotation, and the positioning lugs 53 are separated from the positioning holes 10, so that the clamping hoop 5 can be removed from the outer sleeve beam 1 and the inner telescopic beam 2.
When the relative position of outer sleeve beam 1 and interior flexible roof beam 2 need be adjusted, as shown in fig. 1, the left end of interior flexible roof beam 2 is pushed down for interior flexible roof beam 2 supports at the left end of outer sleeve beam 1, draw-in groove 7 of interior flexible roof beam 2 and the card strip 8 of the last 4 lower parts of support cardboard of outer sleeve beam 1 separate this moment, according to the demand this moment, with interior flexible roof beam 2 to advance in the outer sleeve beam 1 or with interior flexible roof beam 2 from the outer sleeve beam 1 in outwards pulling, until adjusting suitable position, with interior flexible roof beam 2 put down can.
Then the clamping hoop 5 is clamped on the outer sleeve beam 1, the clamping frames 51 on the two sides are closed, at the moment, the positioning lug 53 is correspondingly inserted into the positioning hole 10, and the two connecting plates 52 are connected through the connecting piece. The clamping strip 8 in the clamping frame 51 and the clamping strip 8 on the upper supporting clamping plate 4 are correspondingly clamped in the clamping groove 7.
The cross rods are inserted into the cross beam connecting holes 6 and the cross beam inserting holes 9, the outer sleeve beam 1, the inner telescopic beam 2 and the cross rods are combined into a trailer underframe, and a carriage or a flat plate is fixedly arranged on the trailer underframe when the trailer is used.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A trailer telescopic frame, comprising:
the outer sleeve beam (1), the outer sleeve beam (1) is hollow and U-shaped, and the upper part of the outer sleeve beam is opened;
one end of the inner telescopic beam (2) is inserted into the outer sleeve beam (1), and the inner telescopic beam (2) can move in the outer sleeve beam (1); a penetrating beam connecting hole (6) is formed in the body of the inner telescopic beam (2), and a penetrating beam inserting hole (9) which corresponds to the beam connecting hole (6) in position and is consistent in size is formed in the outer wall of the outer sleeve beam (1);
the connecting and avoiding part (3) is arranged at the edge of a U-shaped opening at the upper part of the outer sleeve beam (1), and the connecting and avoiding part (3) is positioned at one end, sleeved with the inner telescopic beam (2), of the outer sleeve beam (1);
the clamping hoop (5) is clamped on the outer wall of the outer sleeve beam (1) and the inner telescopic beam (2) which are sleeved;
go up and support cardboard (4), go up and support cardboard (4) and connect the one end tip that outer sleeve roof beam (1) and interior flexible roof beam (2) cup jointed mutually to with the U type form opening border connection of this end, and the card is on interior flexible roof beam (2).
2. The telescopic frame for the trailer according to claim 1, wherein a plurality of parallel clamping grooves (7) are formed in the upper surface of the inner telescopic beam (2) at equal intervals, and clamping strips (8) matched with the clamping grooves (7) are arranged on the inner surface of the upper supporting clamping plate (4) and the inner top wall of the clamping hoop (5).
3. The telescopic trailer frame as claimed in claim 2, characterized in that the slot (7) is a V-shaped slot, the bottom end of the slot (7) being curved.
4. The telescopic frame for a trailer according to claim 1, wherein the connection relief portion (3) is a sunken notch groove formed on the edge of the U-shaped opening of the outer sleeve beam (1), and the end of the connection relief portion (3) is arc-shaped.
5. The telescopic trailer frame as claimed in claim 2, characterized in that the distance between two adjacent clamping grooves (7) is the same as the distance between two adjacent beam connecting holes (6) and the distance between two adjacent beam plug-in holes (9).
6. The telescopic frame for trailers according to claim 1, characterized in that there are two of said clips (5), two of said clips (5) being distributed at the two ends of the connection relief portion (3).
7. The telescopic frame of a trailer as claimed in claim 2, wherein the clamping hoop (5) comprises two involutory clamping frames (51), the upper ends of the two clamping frames (51) are rotatably connected through a connecting pin, the clamping strip (8) on the clamping hoop (5) is divided into two sections, the two sections of clamping strips (8) are respectively positioned on the inner top walls of the two clamping frames (51), the bottom ends of the two clamping frames (51) are respectively provided with a connecting plate (52), and the connecting plates (52) are connected through a connecting piece.
8. The trailer telescopic frame as claimed in claim 7, wherein said connecting member is a connecting bolt.
9. The telescopic frame for the trailer according to claim 7, wherein the two opposite side surfaces of the clamping frames (51) are provided with positioning lugs (53), and the outer wall of the outer sleeve beam (1) is provided with positioning holes (10) corresponding to and matched with the positioning lugs (53) at positions corresponding to the positioning lugs (53).
10. The trailer telescopic frame as claimed in claim 9, characterized in that the number of the positioning holes (10) on the outer sleeve beam (1) is two, the distance between two positioning holes (10) is integral multiple of the distance between two adjacent clamping grooves (7), and the horizontal distance between the positioning hole (10) close to the upper support clamping plate (4) and the clamping strip (8) on the inner surface of the upper support clamping plate (4) is equal to the distance between two adjacent clamping grooves (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345332.XA CN113771949B (en) | 2021-11-15 | 2021-11-15 | Trailer telescopic frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345332.XA CN113771949B (en) | 2021-11-15 | 2021-11-15 | Trailer telescopic frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113771949A true CN113771949A (en) | 2021-12-10 |
| CN113771949B CN113771949B (en) | 2022-02-08 |
Family
ID=78873938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111345332.XA Active CN113771949B (en) | 2021-11-15 | 2021-11-15 | Trailer telescopic frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113771949B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB963042A (en) * | 1961-03-10 | 1964-07-08 | Armes De Guerre Fab Nat | Improvements in or relating to the locking of chassis members |
| US3838868A (en) * | 1973-08-13 | 1974-10-01 | Western Lines Inc | Extendable trailer mechanism |
| FR2760704A1 (en) * | 1997-03-13 | 1998-09-18 | Mecanorem | Boat trailer chassis in two sections |
| US20040080128A1 (en) * | 2002-10-17 | 2004-04-29 | Lindsey Alan L. | Multiple use convertible vehicle |
| CN201649628U (en) * | 2010-04-30 | 2010-11-24 | 赵更生 | Beam stretching structure used for template early-dismantled system |
| EP2184220B1 (en) * | 2008-11-07 | 2013-04-10 | MAN Truck & Bus AG | Chassis frame with variable assembly interface |
| CN209988001U (en) * | 2019-06-03 | 2020-01-24 | 青岛海空信合工程有限公司 | Electric tray cart |
| CN210032547U (en) * | 2019-04-29 | 2020-02-07 | 中国十九冶集团有限公司 | Adjustable safety hanging frame for operation in hole |
| CN213359392U (en) * | 2020-06-24 | 2021-06-04 | 安徽康源建设工程劳务有限公司 | Combined type supporting template for constructional engineering |
| CN112943762A (en) * | 2021-01-15 | 2021-06-11 | 宁波海仕凯驱动科技有限公司 | Hoop type link beam |
-
2021
- 2021-11-15 CN CN202111345332.XA patent/CN113771949B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB963042A (en) * | 1961-03-10 | 1964-07-08 | Armes De Guerre Fab Nat | Improvements in or relating to the locking of chassis members |
| US3838868A (en) * | 1973-08-13 | 1974-10-01 | Western Lines Inc | Extendable trailer mechanism |
| FR2760704A1 (en) * | 1997-03-13 | 1998-09-18 | Mecanorem | Boat trailer chassis in two sections |
| US20040080128A1 (en) * | 2002-10-17 | 2004-04-29 | Lindsey Alan L. | Multiple use convertible vehicle |
| EP2184220B1 (en) * | 2008-11-07 | 2013-04-10 | MAN Truck & Bus AG | Chassis frame with variable assembly interface |
| CN201649628U (en) * | 2010-04-30 | 2010-11-24 | 赵更生 | Beam stretching structure used for template early-dismantled system |
| CN210032547U (en) * | 2019-04-29 | 2020-02-07 | 中国十九冶集团有限公司 | Adjustable safety hanging frame for operation in hole |
| CN209988001U (en) * | 2019-06-03 | 2020-01-24 | 青岛海空信合工程有限公司 | Electric tray cart |
| CN213359392U (en) * | 2020-06-24 | 2021-06-04 | 安徽康源建设工程劳务有限公司 | Combined type supporting template for constructional engineering |
| CN112943762A (en) * | 2021-01-15 | 2021-06-11 | 宁波海仕凯驱动科技有限公司 | Hoop type link beam |
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| Publication number | Publication date |
|---|---|
| CN113771949B (en) | 2022-02-08 |
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