CN113771949B - Trailer telescopic frame - Google Patents
Trailer telescopic frame Download PDFInfo
- Publication number
- CN113771949B CN113771949B CN202111345332.XA CN202111345332A CN113771949B CN 113771949 B CN113771949 B CN 113771949B CN 202111345332 A CN202111345332 A CN 202111345332A CN 113771949 B CN113771949 B CN 113771949B
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- outer sleeve
- clamping
- telescopic
- inner telescopic
- distance
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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;
the clamping hoop comprises two involutory 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 disconnected segments, the two segments 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;
positioning lugs are arranged on the opposite side surfaces of the two clamping frames, and positioning holes corresponding to the positioning lugs and matched with the positioning lugs are formed in the outer wall of the outer sleeve beam;
the outer sleeve beam is provided with two positioning holes, 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;
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.
Further, the connecting piece is a connecting bolt.
The invention has the beneficial effects that:
1) 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;
2) through the arrangement of the connection relief part, the clamping hoop is convenient to contact with the outer sleeve beam and the inner telescopic beam, and the outer sleeve beam and the inner telescopic beam can be well fixed;
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 structural view 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 an inner telescopic beam according to the present invention;
FIG. 4 is a schematic structural view of an outer shell 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 inserting 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 outer sleeve beam 1 is hollow and is in a U shape 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 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 yielding part 3 is arranged at the edge of the U-shaped opening at the upper part of the outer sleeve beam 1, and the connecting yielding part 3 is positioned at one end of the outer sleeve beam 1 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 inner telescopic beam 2 which are sleeved with each other;
the clamp 5 comprises two involutory clamp frames 51, the upper ends of the two clamp frames 51 are rotatably connected through a connecting pin, the clamp strips 8 on the clamp 5 are two disconnected segments, the two segments of clamp strips 8 are respectively positioned on the inner top walls of the two clamp frames 51, the bottom ends of the two clamp frames 51 are respectively provided with a connecting plate 52, and the connecting plates 52 are connected through a connecting piece.
The connecting piece is a connecting bolt.
Two the opposite side of card frame 51 all is provided with location lug 53, on the outer wall of overcoat roof beam 1 and the position that corresponds with location lug 53 seted up with the location lug 53 position corresponding and the locating hole 10 of looks adaptation.
The outer sleeve beam 1 is provided with two positioning holes 10, the distance between the two positioning holes 10 is integral multiple of the distance between the two adjacent clamping grooves 7, and the horizontal distance between the positioning hole 10 close to the upper supporting clamping plate 4 and the clamping strip 8 on the inner surface of the upper supporting clamping plate 4 is equal to the distance between the two adjacent clamping grooves 7;
go up and support cardboard 4, go up and support cardboard 4 and connect the one end tip that outer sleeve beam 1 and interior telescopic girder 2 cup jointed mutually to connect the U type form opening border of this end, and block on interior telescopic girder 2.
Preferably, 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. Through the setting of card strip 8 for go up the card that supports 4 portions of cardboard and 5 homoenergetic of clamp 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.
Preferably, 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.
Preferably, the connection and relief portion 3 is a sunken notch groove formed in the edge of the U-shaped opening of the outer sleeve beam 1, and the end of the connection and relief portion 3 is arc-shaped. 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 of local increase of stress in an object, are avoided, and generally appear in places with sharp changes of the shape of the object, such as gaps, holes, grooves and rigid constraint places. 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.
Preferably, 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.
Preferably, two clamping hoops 5 are provided, and the two clamping hoops 5 are distributed at two ends of the connection relief portion 3.
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 (7)
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;
the clamping hoop (5) comprises two oppositely-combined 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;
positioning lugs (53) are arranged on the opposite side faces of the two clamping frames (51), and positioning holes (10) corresponding to the positioning lugs (53) and matched with the positioning lugs (53) are formed in the positions, corresponding to the positioning lugs (53), on the outer wall of the outer sleeve beam (1);
the outer sleeve beam is characterized in that the number of the positioning holes (10) in the outer sleeve beam (1) is two, the distance between the two positioning holes (10) is integral multiple of the distance between the two adjacent clamping grooves (7), and the horizontal distance between the positioning hole (10) close to the upper supporting clamping plate (4) and the clamping strip (8) on the inner surface of the upper supporting clamping plate (4) is equal to the distance between the two adjacent clamping grooves (7);
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 frame for the trailer according to claim 1, wherein 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).
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 trailer telescopic frame as claimed in claim 1, wherein said connecting member is a connecting bolt.
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 CN113771949A (en) | 2021-12-10 |
| CN113771949B true 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) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL121385C (en) * | 1961-03-10 | |||
| US3838868A (en) * | 1973-08-13 | 1974-10-01 | Western Lines Inc | Extendable trailer mechanism |
| FR2760704B1 (en) * | 1997-03-13 | 2000-09-08 | Mecanorem | IMPROVEMENTS ON BOAT TRAILERS |
| US6991250B2 (en) * | 2002-10-17 | 2006-01-31 | Lindsey Alan L | Multiple use convertible vehicle |
| DE102008056406A1 (en) * | 2008-11-07 | 2010-05-12 | Man Nutzfahrzeuge Ag | Chassis frame with variable 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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2021
- 2021-11-15 CN CN202111345332.XA patent/CN113771949B/en active Active
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| Publication number | Publication date |
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| CN113771949A (en) | 2021-12-10 |
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