CN112498490A - Semitrailer and frame thereof - Google Patents
Semitrailer and frame thereof Download PDFInfo
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- CN112498490A CN112498490A CN202011524677.7A CN202011524677A CN112498490A CN 112498490 A CN112498490 A CN 112498490A CN 202011524677 A CN202011524677 A CN 202011524677A CN 112498490 A CN112498490 A CN 112498490A
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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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- 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
- B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
- B62D21/20—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17 trailer type, i.e. a frame specifically constructed for use in a non-powered vehicle
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- Combustion & Propulsion (AREA)
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Abstract
The invention provides a semitrailer and a frame thereof, wherein the frame comprises an outer cross beam, an inner beam, a lifting lock head, a base and a lock pin assembly. The inner beam can stretch out and draw back in the extending direction of the outer beam, and the lifting lock head moves to a certain set position along with the inner beam, so that the horizontal position of the lifting lock head in the width direction of the semitrailer frame is adjustable. Through the cooperation of base, lockpin subassembly, outer crossbeam and inner beam, realize the position locking of outer crossbeam and inner beam. At the same time, the pin in the locking pin assembly is blocked by the base which limits the axial movement of the pin and avoids the occurrence of pin removal. The semi-trailer can be used for transporting containers or mechanical equipment with different widths, so that the practicability of the semi-trailer is enhanced, the multi-purpose of one vehicle is realized, the semi-trailers with different types of containers or mechanical equipment with different widths do not need to be matched, the vehicle purchasing quantity and cost of a vehicle unit are reduced, and the energy conservation and environmental protection are contributed.
Description
Technical Field
The invention relates to the technical field of transportation equipment, in particular to a semitrailer and a frame thereof.
Background
A semitrailer is a vehicle for transporting bulk goods, and a lifting lock is usually used to fix the semitrailer to a container or a mechanical device. The lifting lock head has the advantages of high strength, convenience in operation, good reliability and the like. In general, the position of the lifting lock is fixed and cannot be adjusted by horizontal movement, so that the application range of the semitrailer with the lifting lock is limited, and the semitrailer with different models can be selected according to the size of a container or mechanical equipment.
Disclosure of Invention
One object of the invention is to provide a semitrailer frame, which solves the technical problem that a lifting lock head in the prior art cannot realize position adjustment through horizontal movement, and can ensure that the lifting lock head can be stably placed at a required position.
Another object of the present invention is to provide a semitrailer that can be used to transport containers or mechanical equipment of different widths and to avoid tipping of the containers or mechanical equipment during transport.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to one aspect of the invention, the invention provides a semitrailer frame, comprising:
the lifting lock head is fixed on the inner beam and can move along with the inner beam;
a base fixed to an outer wall surface of the outer beam;
the lock pin assembly comprises a pin and a stopper fixed on the pin, and the pin sequentially penetrates through the base, the outer cross beam and the inner beam to limit the positions of the outer cross beam and the inner beam; also, the base is capable of blocking the stop into and out of the base with the pin to limit axial movement of the pin.
In one embodiment, the base comprises a base body and a flange; the seat body is provided with a step hole, the seat body is fixed on the outer cross beam, and the end surface of a small hole in the step hole is attached to the outer wall surface of the outer cross beam; the flange is arranged at the large hole end of the step hole and is provided with a notch;
the pin sequentially penetrates through the step hole, the outer cross beam and the inner beam on the seat body to limit the positions of the outer cross beam and the inner beam, and the blocking piece on the pin can enter and exit the seat body from the notch and is blocked by the blocking edge after rotating along with the axis of the pin.
In a further refinement, the latch assembly further comprises:
and the handle is fixed at the end head of the pin and is used for screwing the pin.
Preferably, the handle comprises a transverse plate and a vertical plate, the transverse plate and the vertical plate are spliced into a T shape, a groove is formed in the vertical plate, and the end of the pin is fixed in the groove.
In a further refinement, the latch assembly further comprises:
and the flexible connecting pieces are respectively connected with the handle and the outer cross beam.
Still further improved, the semitrailer frame still includes:
a reinforcing plate fixed to an outer wall surface of the outer beam and directly opposing the base; the pin can penetrate through the reinforcing plate after penetrating out of the outer cross beam.
In a further improvement, the semitrailer frame further comprises:
and the reinforcing rib plates are uniformly distributed in the outer cross beam along the extension direction of the outer cross beam.
In one embodiment, a first lateral through hole is formed in the outer beam, and the base covers the first lateral through hole; the inner beam is provided with a plurality of second lateral through holes which are arranged at intervals along the extension direction of the inner beam; and the pin penetrates through the base and then penetrates through the first lateral through hole and any second lateral through hole to connect and lock the outer cross beam and the inner beam.
In a further improvement, the semitrailer frame further comprises:
the sleeves are in one-to-one correspondence with the second lateral through holes, and each sleeve is inserted into one second lateral through hole; and the pin penetrates through the base and then penetrates through the sleeve in the first lateral through hole and any second lateral through hole to connect and lock the outer cross beam and the inner beam.
The invention also provides a semitrailer, wherein the frame is any one of the frames, the two ends of the outer cross beam in the frame are respectively provided with an inner beam with adjustable positions along the extension direction of the outer cross beam, and each inner beam is fixedly provided with a lifting lock head capable of moving along with the inner beam.
According to the technical scheme, the invention has at least the following advantages and positive effects:
according to the semi-trailer and the frame thereof, the inner beam can stretch in the extending direction of the outer beam, and the lifting lock head moves to a certain set position along with the inner beam, so that the horizontal position of the lifting lock head in the width direction of the semi-trailer frame can be adjusted. Through the cooperation of base, lockpin subassembly, outer crossbeam and inner beam, realize the position locking of outer crossbeam and inner beam. At the same time, the pin in the locking pin assembly is blocked by the base which limits the axial movement of the pin and avoids the occurrence of pin removal.
The semi-trailer can be used for transporting containers or mechanical equipment with different widths, so that the practicability of the semi-trailer is enhanced, the multi-purpose of one vehicle is realized, the semi-trailers with different types of containers or mechanical equipment with different widths do not need to be matched, the vehicle purchasing quantity and cost of a vehicle unit are reduced, and the energy conservation and environmental protection are contributed.
Drawings
FIG. 1 is a front view of a semitrailer frame in a first condition in which an outer cross member and an inner cross member are assembled in accordance with an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of a semitrailer frame in a second configuration in which an outer cross member and an inner cross member are assembled in accordance with an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 1;
FIG. 5 is a front view of an outer cross member of a frame of the semitrailer in accordance with an embodiment of the present invention;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
fig. 7 is a top view of an outer cross beam in the frame of the semitrailer provided by the embodiment of the invention;
FIG. 8 is a front view of an inner rail of a frame for a semitrailer in accordance with an exemplary embodiment of the present invention;
FIG. 9 is a cross-sectional view C-C of FIG. 8;
FIG. 10 is a front view of a latch assembly in a frame of the semitrailer provided in accordance with an embodiment of the present invention;
FIG. 11 is a left side view of FIG. 10;
FIG. 12 is a front view of a base in a frame of the semitrailer provided in accordance with an embodiment of the present invention;
FIG. 13 is a cross-sectional view taken along line D-D of FIG. 12;
fig. 14 is a cross-sectional view E-E of fig. 12.
The reference numerals are explained below:
1. an outer beam; 11. a first lateral through hole;
2. an inner beam; 21. a second lateral through hole;
3. a lifting lock head;
4. a base; 41. a base body; 411. a stepped bore; 42. blocking edges; 421. a notch;
5. a latch assembly; 51. a pin; 52. a stopper; 53. a handle; 531. a transverse plate; 532. a vertical plate; 5321. a groove; 54. a flexible connector;
6. a sleeve; 7. a reinforcing plate; 8. and a reinforcing plate.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
The invention provides a semitrailer and a frame thereof. In some semi-trailer frames for transporting containers or mechanical equipment, two or three beams are provided with locking heads for fixing the containers or the mechanical equipment, and the beam with the locking heads can be called as a locking head beam.
The technical scheme in this embodiment has mainly improved the semi-trailer frame, more specifically, has improved the tapered end crossbeam of semi-trailer frame, and concrete scheme content is as follows:
as shown in fig. 1 to 4, a semi-trailer frame has a retractable lock head beam comprising an outer beam 1, an inner beam 2, a lifting lock head 3, a base 4, a lock pin assembly 5. The position of the lock head cross beam in the semitrailer frame and the connection relation between the lock head cross beam and the longitudinal beam or the related structure can refer to the description of the related technology of the semitrailer frame, and the description is omitted here.
Wherein, regarding the whole frame, the outer beam 1 extends along the transverse direction of the frame, namely the width direction of the frame, at least one end of the outer beam 1 is provided with an inner beam 2, and the inner beam 2 is arranged at the end part of the outer beam 1 in a manner of being adjustable along the extending direction of the outer beam 1. The lifting lock head 3 is fixed on the inner beam 2 and can move along with the inner beam 2.
The base 4 is fixed to the outer wall surface of the outer beam 1. As shown in fig. 10 and 11, the detent assembly 5 includes a pin 51 and a stopper 52 fixed to the pin 51, wherein the pin 51 is a cylindrical pin. The pins 51 pass through the base 4, the outer beam 1 and the inner beam 2 in sequence to define the positions of the outer beam 1 and the inner beam 2, and the base 4 can block the stoppers 52 which enter and exit the base 4 along with the pins 51 to limit the axial movement of the pins 51.
According to the semi-trailer frame, the inner beam 2 can stretch out and draw back in the extending direction of the outer beam 1, and the lifting lock head 3 moves to a certain set position along with the inner beam 2, so that the horizontal position of the lifting lock head 3 in the width direction of the semi-trailer frame is adjustable.
Therefore, when the semitrailer needs to load containers or mechanical equipment with different widths, the inner beam 2 is pulled out or drawn back according to the width of the container or the mechanical equipment to be transported, so that the lifting lock head 3 is adjusted to a proper position, and then the pin 51 sequentially penetrates through the base 4, the outer cross beam 1 and the inner beam 2 and then locks the positions of the outer cross beam 1 and the inner beam 2. At the same time, the pin 51 is blocked by the seat 4, the seat 4 limits the axial movement of the pin 51, avoiding the occurrence of a pin-out condition.
In the technical field of semitrailers, in order to enable a semitrailer to transport containers of different sizes, a frame is usually modified in the length direction, namely the extending direction of a longitudinal beam, for example, a telescopic beam is connected between a front frame and a rear frame, and the length of the frame is adjustable through the telescopic beam, so that the transportation requirements of the containers of different lengths are met. Over the years, in the field of semitrailer technology, technicians have developed a technical prejudice that only length (the direction of extension of the longitudinal beams) modifications are often made to the frame, ignoring width (the direction of extension of the transverse beams) modifications.
After the semi-trailer frame in the embodiment is used, the semi-trailer can be used for transporting containers or mechanical equipment with different widths, so that the practicability of the semi-trailer is enhanced, the multi-purpose of one vehicle is realized, the semi-trailers with different types and different widths do not need to be matched with semi-trailers with different types, the vehicle purchasing quantity and cost of vehicle units are reduced, and the contribution is made to energy conservation and environmental protection.
When only one end of the outer cross beam 1 is provided with the inner beam 2 and the lifting lock head 3, and the inner beam 2 extends out of the end part of the outer cross beam 1, the lifting lock head 3 and the frame bear containers or mechanical equipment, the containers or the mechanical equipment are installed on the frame in a left-right asymmetrical mode, and therefore extra means are needed to guarantee the stability of the containers or the mechanical equipment. As shown in fig. 1 to 3, two ends of the outer beam 1 are respectively provided with an inner beam 2 with adjustable position along the extending direction of the outer beam 1, and each inner beam 2 is fixed with a lifting lock head 3 capable of moving along with the inner beam 2. Therefore, the two inner beams 2 are symmetrically arranged on the same outer cross beam 1, and the two lifting lock heads 3 are also symmetrically arranged.
As shown in FIG. 1, when the inner beams 2 at both ends are extended, a container or mechanical equipment with a wide width can be loaded on the frame. As shown in fig. 3, after the inner beams 2 at both ends are retracted into the outer beam 1, the carriage can be loaded with a container or mechanical equipment with a narrow width.
When the frame bears container or mechanical equipment, both sides inner beam 2 and the lift tapered end 3 on it bear jointly to container or mechanical equipment's focus and the focus of semitrailer frame are on same straight line, thereby make both sides inner beam 2 difficult the emergence bend, and container or mechanical equipment are difficult to take place to incline moreover, have avoided the appearance of the condition of toppling, have promoted the factor of safety of semitrailer.
The outer cross member 1 and the inner cross member 2 are preferably steel box beams, and the cross-sectional shape of the box beams may be U-shaped, rectangular, square, horseshoe-shaped, or other shapes, thereby improving the load-bearing capacity and the connection strength. In the present embodiment, as shown in fig. 6 and 9, the outer cross member 1 and the inner cross member 2 are each a box-shaped member having a square cross-sectional shape. One end of the inner beam 2 can be inserted from one end of the outer beam 1, and the other end of the inner beam 2 is welded with the lifting lock head 3. The outer beam 1 and the inner beam 2 are matched in size and are in clearance fit. Lubricating measures are taken between the outer beam 1 and the inner beam 2, for example, grease is applied.
In a further improvement, as shown in fig. 5 and 7, a plurality of reinforcing rib plates 8 are uniformly distributed inside the outer cross beam 1 along the extending direction of the outer cross beam 1. Since the cross section of the outer beam 1 is square in the present embodiment, the reinforcing rib plates 8 are also square plates, and the side faces of the reinforcing rib plates 8 are in contact with the inner surface of the outer beam 1. The reinforcing rib plate 8 and the outer cross beam 1 can be fixed in a welding or gluing mode. By arranging the reinforcing rib plates 8, the strength of the outer cross beam 1 is further improved, so that the load capacity of the outer cross beam is improved, and the service life of the outer cross beam is prolonged.
In order to realize that the position of the inner beam 2 at the end of the outer beam 1 along the extending direction of the outer beam 1 can be adjusted and locked as required, the embodiment adopts the following specific structure:
as shown in fig. 5, the outer beam 1 is provided with a first lateral through hole 11, and the first lateral through hole 11 is located at the middle position of the outer beam 1 in the thickness direction. The base 4 covers the first lateral through hole 11, and the base 4 can be fixed on the outer wall surface of the outer cross beam 1 by welding. As shown in fig. 1 and 8, a plurality of second lateral through holes 21 are formed in the inner beam 2 and are arranged at intervals along the extension direction of the inner beam, and the second lateral through holes 21 are arranged in a row on the inner beam 2 and are located in the middle of the inner beam 2 in the thickness direction.
As shown in fig. 1, the end of the inner beam 2 opposite to the lift cylinder 3 can be inserted into the outer beam 1 from the end of the outer beam 1. Along with the inner beam 2 stretches into and stretches out on the outer beam 1, the inner beam 2 realizes that the position of the outer beam 1 in the extending direction is adjustable, and the position adjustment of the lifting lock head 3 is also realized. During the process of the inner beam 2 stretching and retracting at the end part of the outer beam 1, the first lateral through hole 11 on the outer beam 1 can be aligned with any second lateral through hole 21 on the inner beam 2. After the inner beam 2 and the lifting lock head 3 thereon are adjusted to a proper position, the pin 51 is inserted into the first lateral through hole 11 after passing through the base 4 and a certain second lateral through hole 21 aligned with the first lateral through hole 11 to connect and lock the outer beam 1 and the inner beam 2.
In this embodiment, the two ends of the outer beam 1 are both provided with the inner beam 2 capable of adjusting the position in a telescopic manner, so that two first lateral through holes 11 are formed in the outer beam 1, and each end close to the outer beam 1 is provided with one first lateral through hole 11. Each first lateral through hole 11 is covered with a base 4. The outer beam 1 and the inner beams 2 at both ends thereof can be locked in position by means of the pins 51, the first lateral through holes 11 and one of the second lateral through holes 21.
In addition, in order to ensure that the locking between the outer beam 1 and the inner beam 2 is more stable, the outer beam 1 may be further provided with a plurality of first lateral through holes 11, each first lateral through hole 11 is covered with a base 4, and each inner beam 2 is stably locked by inserting a pin 51 into a plurality of pairs of corresponding first lateral through holes 11 and second lateral through holes 21.
Furthermore, the second lateral through holes 21 on the inner beam 2 can be uniformly distributed, so that the position of the inner beam 2 on the outer beam 1 can be uniformly adjusted.
The structure is simple and easy to implement, and besides the structure, only one second lateral through hole 21 can be formed in the inner beam 2, and a plurality of first lateral through holes 11 can be formed in the outer cross beam 1. The inner beam 2 is extended and contracted along the extending direction of the outer beam 1, and after reaching a desired position, a certain first lateral through hole 11 can be aligned with the second lateral through hole 21, and then the pin 51 is inserted to achieve locking.
In a further development, as shown in fig. 9, a sleeve 6 is inserted into each second lateral through hole 21. The pin 51 passes through the base 4 and then passes through the sleeve 6 in the first lateral through hole 11 and the second lateral through hole 21 to connect and lock the outer beam 1 and the inner beam 2. The bushing 6 provides a passage for the pin 51 to pass through, facilitating the pin 51 to pass through the cross beam 1 and the inner beam 2 to lock them.
In a further improvement, as shown in fig. 6, a reinforcing plate 7 is fixed to an outer wall surface of the outer beam 1 directly opposite to the base 4, and the reinforcing plate 7 is made of a steel plate, so that the reinforcing plate 7 can be fixed to the outer beam 1 by welding. The pin 51 can pass through the reinforcement plate 7 after passing out of the outer beam 1. The reinforcing plate 7 may be used to support the end of the pin 51. The pin 51 passes through the reinforcing plate 7, and it is clear that the reinforcing plate 7 is provided with a through hole having a diameter equal to the outer diameter of the pin 51, the pin 51 preferably being a clearance fit with the through hole in the reinforcing plate 7.
In the present embodiment, as shown in fig. 12 to 14, the base 4 includes a seat body 41 and a rib 42, wherein the seat body 41 is a block made of steel, and the rib 42 is made of the same material as the seat body 41. The seat body 41 is provided with a step hole 411, the seat body 41 is fixed on the outer cross beam 1, and the end surface of the small hole in the step hole 411 is welded after being attached to the outer wall surface of the outer cross beam 1. Furthermore, a flange 42 is disposed at an opening of a large hole of the stepped hole 411, and a notch 421 is disposed on the flange 42. As shown in fig. 12, the rib 42 is circular, the outer peripheral surface thereof is inscribed on the inner wall surface of the large hole of the stepped hole 411, the rib 42 is located at the opening end of the large hole, and the end surface of the rib 42 is flush with the end surface of the opening of the large hole. The notch 421 can break the closed loop of the annular rib 42. As shown in fig. 12 to 14, the seat body 41 and the rib 42 of the base 4 are integrally connected.
As shown in fig. 10, the stoppers 52 are fixed to the pins 51 in the radial direction, and the stoppers 52 are any one of a straight screw, a cylindrical pin, and a conical pin. The pin 51 may be provided with a radial groove in which a cylindrical or conical pin may be inserted. And the in-line screw may be threadedly coupled to the pin 51.
One end of the pin 51 sequentially passes through the step hole 411 on the seat body 41, the first lateral through hole 11 on the outer beam 1 and the second lateral through hole 21 on the inner beam 2, and then positions of the outer beam 1 and the inner beam 2 are limited. During the process of inserting the pin 51 into the above parts, the stopper 52 on the pin 51 can enter the seat body 41 from the notch 421 on the rib 42. The other end of the pin 51 is placed outside the seat body 41, the pin 51 is screwed to rotate around the axis thereof, the stopper 52 is screwed into the annular groove formed by the shoulder of the rib 42 and the stepped hole 411, the axial movement of the pin 51 is blocked by the shoulder of the rib 42 and the stepped hole 411, and the occurrence of the pin-out condition is avoided. Only by turning the pin 51 so that the stopper 52 is aligned with the notch 421, the pin 51 can be pulled out from the housing 41, the outer beam 1, and the inner beam 2. To facilitate the stopper 52 entering and exiting the notch 421, the width of the notch 421 is slightly larger than the width of the stopper 52.
The pin 51 passes through a small hole in the stepped hole 411 of the base body 41, and then passes through the first lateral through hole 11 on the outer beam 1 and the second lateral through hole 21 on the inner beam 2 to limit the positions of the outer beam 1 and the inner beam 2. The diameter of the small hole in the stepped hole 411 is similar to the diameter of the pin 51, and the small hole in the stepped hole 411 is in clearance fit with the pin 51, so that the pin 51 can be conveniently plugged into or pulled out of the seat body 41. As shown in fig. 10 and 11, the pin 51 is provided with a handle 53, and the handle 53 is fixed to the end of the pin 51 to facilitate the rotation of the pin 51.
In this embodiment, as shown in fig. 10, the handle 53 includes a horizontal plate 531 and a vertical plate 532, the horizontal plate 531 and the vertical plate 532 form a T shape, and a connection portion between the horizontal plate 531 and the vertical plate 532 adopts an arc transition. A groove 5321 is formed on the vertical plate 532, as shown in fig. 10, the groove 5321 is located at the middle position of the end of the vertical plate 532, and the end of the pin 51 is fixed in the groove 5321. The pin 51 and the groove 5321 can be fixed by clamping, welding or gluing. The transverse plate 531 is used for holding fingers, the vertical plate 532 bears torque, and the handle 53 with the structure is simple in structure, high in strength, safe and durable.
In a further development, as shown in fig. 2 and 4, a flexible connection 54 is connected between the handle 53 and the outer beam 1, which flexible connection 54 is a catenary chain or a catenary, preferably a steel link chain in this embodiment. When the pin 51 is pulled out, it can be suspended on the outer beam 1 by means of the flexible connection 54 in order to find the pin 51, avoiding the influence on the transportation work due to the loss of the pin 51.
According to the semi-trailer and the frame thereof, the inner beam 2 can stretch in the extending direction of the outer beam 1, and the lifting lock head 3 moves to a certain set position along with the inner beam 2, so that the horizontal position of the lifting lock head 3 in the width direction of the semi-trailer frame is adjustable.
Therefore, when the semitrailer needs to load containers or mechanical equipment with different widths, the inner beam 2 is pulled out or drawn back according to the width of the container or the mechanical equipment to be transported, so that the lifting lock head 3 is adjusted to a proper position, and then the pin 51 sequentially penetrates through the base 4, the outer cross beam 1 and the inner beam 2 and then locks the positions of the outer cross beam 1 and the inner beam 2. At the same time, the pin 51 is blocked by the base 4, and the axial movement of the pin 51 is limited by the base 4, so that the pin is prevented from being disengaged.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. A semi-trailer frame, comprising:
the lifting lock head is fixed on the inner beam and can move along with the inner beam;
a base fixed to an outer wall surface of the outer beam;
the lock pin assembly comprises a pin and a stopper fixed on the pin, and the pin sequentially penetrates through the base, the outer cross beam and the inner beam to limit the positions of the outer cross beam and the inner beam; also, the base is capable of blocking the stop into and out of the base with the pin to limit axial movement of the pin.
2. The semi-trailer frame as claimed in claim 1, wherein the base comprises a seat body and a flange; the seat body is provided with a step hole, the seat body is fixed on the outer cross beam, and the end surface of a small hole in the step hole is attached to the outer wall surface of the outer cross beam; the flange is arranged at the large hole end of the step hole and is provided with a notch;
the pin sequentially penetrates through the step hole, the outer cross beam and the inner beam on the seat body to limit the positions of the outer cross beam and the inner beam, and the blocking piece on the pin can enter and exit the seat body from the notch and is blocked by the blocking edge after rotating along with the axis of the pin.
3. The semi-trailer frame as claimed in claim 2, wherein the latch assembly further comprises:
a handle secured at the end of the pin for twisting the pin.
4. The semi-trailer frame as claimed in claim 3, wherein the handle comprises a cross plate and an upright plate, the cross plate and the upright plate are spliced into a T shape, the upright plate is provided with a groove, and the end of the pin is fixed in the groove.
5. The semi-trailer frame of claim 3, wherein the latch assembly further comprises:
and the flexible connecting pieces are respectively connected with the handle and the outer cross beam.
6. A semi-trailer frame as claimed in claim 1, further comprising:
a reinforcing plate fixed to an outer wall surface of the outer beam and directly opposing the base; the pin can penetrate through the reinforcing plate after penetrating out of the outer cross beam.
7. A semi-trailer frame as claimed in claim 1, further comprising:
and the reinforcing rib plates are uniformly distributed in the outer cross beam along the extension direction of the outer cross beam.
8. The semitrailer frame as claimed in any one of claims 1 to 7, characterized in that a first lateral through hole is opened on the outer cross member, and the base covers the first lateral through hole; the inner beam is provided with a plurality of second lateral through holes which are arranged at intervals along the extension direction of the inner beam; and the pin penetrates through the base and then penetrates through the first lateral through hole and any second lateral through hole to connect and lock the outer cross beam and the inner beam.
9. The semi-trailer frame as recited in claim 8, further comprising:
the sleeves are in one-to-one correspondence with the second lateral through holes, and each sleeve is inserted into one second lateral through hole; and the pin penetrates through the base and then penetrates through the sleeve in the first lateral through hole and any second lateral through hole to connect and lock the outer cross beam and the inner beam.
10. A semitrailer, characterized in that the frame of the semitrailer is as claimed in any one of claims 1 to 9, wherein inner beams are mounted at both ends of the outer beam in the frame and are adjustable in position along the extension direction of the outer beam, and a lifting lock capable of moving along with the inner beams is fixed on each inner beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524677.7A CN112498490A (en) | 2020-12-22 | 2020-12-22 | Semitrailer and frame thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524677.7A CN112498490A (en) | 2020-12-22 | 2020-12-22 | Semitrailer and frame thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112498490A true CN112498490A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011524677.7A Pending CN112498490A (en) | 2020-12-22 | 2020-12-22 | Semitrailer and frame thereof |
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| CN (1) | CN112498490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114802455A (en) * | 2022-05-09 | 2022-07-29 | 一汽解放汽车有限公司 | Frame cross beam assembly and vehicle |
| CN114940212A (en) * | 2022-05-30 | 2022-08-26 | 常州市瑞悦车业有限公司 | Length-adjustable general vehicle frame for transportation |
-
2020
- 2020-12-22 CN CN202011524677.7A patent/CN112498490A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114802455A (en) * | 2022-05-09 | 2022-07-29 | 一汽解放汽车有限公司 | Frame cross beam assembly and vehicle |
| CN114802455B (en) * | 2022-05-09 | 2023-10-03 | 一汽解放汽车有限公司 | Frame cross beam assembly and vehicle |
| CN114940212A (en) * | 2022-05-30 | 2022-08-26 | 常州市瑞悦车业有限公司 | Length-adjustable general vehicle frame for transportation |
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