CN107336664A - A kind of caravan extendable bracket - Google Patents

A kind of caravan extendable bracket Download PDF

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Publication number
CN107336664A
CN107336664A CN201710676414.XA CN201710676414A CN107336664A CN 107336664 A CN107336664 A CN 107336664A CN 201710676414 A CN201710676414 A CN 201710676414A CN 107336664 A CN107336664 A CN 107336664A
Authority
CN
China
Prior art keywords
square tube
shaped steel
bearing
push rod
fixedly connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710676414.XA
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Chinese (zh)
Inventor
路春华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Yao Ou Beijing Great Automotive Components Co Ltd
Original Assignee
Zhejiang Yao Ou Beijing Great Automotive Components Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Yao Ou Beijing Great Automotive Components Co Ltd filed Critical Zhejiang Yao Ou Beijing Great Automotive Components Co Ltd
Priority to CN201710676414.XA priority Critical patent/CN107336664A/en
Publication of CN107336664A publication Critical patent/CN107336664A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/32Vehicles adapted to transport, to carry or to comprise special loads or objects comprising living accommodation for people, e.g. caravans, camping, or like vehicles
    • B60P3/34Vehicles adapted to transport, to carry or to comprise special loads or objects comprising living accommodation for people, e.g. caravans, camping, or like vehicles the living accommodation being expansible, collapsible or capable of rearrangement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/32Vehicles adapted to transport, to carry or to comprise special loads or objects comprising living accommodation for people, e.g. caravans, camping, or like vehicles
    • B60P3/36Auxiliary arrangements; Arrangements of living accommodation; Details

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

The invention discloses a kind of caravan extendable bracket, including more than two, support, support includes C-shaped steel, inserts square tube in C-shaped steel, rack is installed on the outer surface of square tube bottom wall, it is provided with C-shaped steel and rack meshed gears, square tube can carry out telescopic moving along the bearing of trend of C-shaped steel, and the upper wall of C-shaped steel is fixed on caravan chassis;Gear on two adjacent stents is fixedly connected by connecting rod, and realize that the gear synchronous on two adjacent stents rotates, also include push rod device, push rod device includes screw mandrel, push rod, screw mandrel one end is connected with motor, feed screw nut is provided with screw mandrel, feed screw nut is fixedly connected with push rod one end, and the other end of push rod is fixedly connected with one end of a square tube.

Description

A kind of caravan extendable bracket
Technical field
The invention belongs to caravan expanding unit technical field, concretely relates to a kind of caravan extendable bracket.
Background technology
The expanding unit of caravan can effectively be solved to work in the wild or during lodge, and caravan insufficient space is brought huge Burden.Caravan needs to be extended to side when in use, be shrunk to when not in use with caravan respective width, so in caravan Chassis on need to install telescopic mechanism, traditional telescoping mechanism usually requires multigroup hydraulically extensible oil and driven, but Some hydraulically extensible oils do not have lazy-tongs, this result in multigroup hydraulic jack be frequently present of action it is inconsistent so that on one side Hydraulically extensible oil first stretch out or be retracted, and the hydraulically extensible oil of another side is not kept up with, then the square tube card of another side Extremely, the flexible of vehicle is influenceed.
The content of the invention
It is an object of the invention to provide a kind of caravan extendable bracket, its extendable bracket is carried out using the cooperation of wheel and rack Transmission, reach synchronous by connecting rod and stretch out with being retracted, avoid square tube stuck, extendable bracket stretches smooth.
In order to solve the above technical problems, the object of the present invention is achieved like this:
A kind of caravan extendable bracket, including more than two, support, support include C-shaped steel, square tube, square tube bottom are inserted in C-shaped steel Rack is installed, being provided with C-shaped steel can be along the bearing of trend of C-shaped steel with rack meshed gears, square tube on the outer surface of wall Telescopic moving is carried out, the upper wall of C-shaped steel is fixed on caravan chassis;Gear on two adjacent stents is fixed by connecting rod to be connected Connect, and realize that the gear synchronous on two adjacent stents rotates, in addition to push rod device, push rod device include screw mandrel, push rod, screw mandrel One end is connected with motor, and feed screw nut is provided with screw mandrel, and feed screw nut is fixedly connected with push rod one end, the other end of push rod It is fixedly connected with one end of a square tube.
On the basis of such scheme and as the preferred scheme of such scheme:First axle is provided with C-shaped steel left side wall Bearing, second bearing seat is provided with C-shaped steel right side wall, first bearing seat is oppositely arranged with second bearing seat, first bearing seat On clutch shaft bearing is installed, second bearing, in addition to rotary shaft be installed in second bearing seat, rotary shaft through clutch shaft bearing, Second bearing, gear is fixed between clutch shaft bearing and second bearing on the rotating shaft, is respectively fixed with left and right sides of gear Roller, roller contact with square tube with bottom wall outer surface.
On the basis of such scheme and as the preferred scheme of such scheme:One end of connecting rod on a support with turning One end of moving axis is fixedly connected, and the other end of connecting rod is fixedly connected with one end of another support upper rotary shaft.
On the basis of such scheme and as the preferred scheme of such scheme:One end of screw mandrel passes through shaft coupling and motor It is connected, feed screw nut is provided with screw mandrel, feed screw nut is fixedly connected with one end of push rod, the other end of push rod and a square tube One end be fixedly connected.
On the basis of such scheme and as the preferred scheme of such scheme:Also include synchronizing bar, on two adjacent stents Square tube be fixedly connected by synchronizing bar.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that:
C-shaped steel, is directly welded on caravan chassis, using a push rod device to one by the caravan extendable bracket of the present invention Square tube is driven, and is coordinated by wheel and rack and is passed work(, while in the presence of the connecting rod on other supports of synchronous drive Square tube carries out stretching motion, and it is stuck to avoid square tube, ensures that vehicle/caravan expansion action is happy.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the support overall structure diagram of the present invention.
Fig. 3 is the support left view structural representation of the present invention.
Fig. 4 is the support overall structure diagram of the present invention.
Fig. 5 is the support partial structural diagram of the present invention.
Fig. 6 is the support partial structural diagram of the present invention.
Fig. 7 is the support left view structural representation of the present invention.
Fig. 8 is the support partial structural diagram of the present invention.
Fig. 9 is the support partial structural diagram of the present invention.
Figure 10 is the bearing block structure schematic diagram of the present invention.
Figure 11 is the connecting board structure schematic diagram of the present invention.
Figure 12 is the push rod device structural representation of the present invention.
Figure 13 is the rotation shaft structure schematic diagram of the present invention.
Figure 14 is the disc structure schematic diagram of the present invention.
Embodiment
In the description of the invention, it is to be understood that the instruction such as term " on ", " under ", " top ", " bottom ", " interior ", " outer " Orientation or position relationship be based on orientation shown in the drawings or position relationship, or the invention product using when usually put Orientation or position relationship, or the orientation that usually understands of those skilled in the art or position relationship, be for only for ease of and retouch State the present invention and simplify description, rather than indicate or imply that signified equipment or element there must be specific orientation, with specific Azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings;
This gives a kind of caravan extendable bracket, including more than two, support, support is set in parallel in the chassis of caravan On,
Support includes C-shaped steel 1, and the bottom wall of C-shaped steel has opening, square tube 2 is inserted from one end of C-shaped steel, before C-shaped steel one end is End, the other end are rearward end, and square tube one end is leading section, the other end is rearward end, by the leading section of square tube from C-shaped steel Rearward end is inserted, and square tube can carry out telescopic moving in the bearing of trend of C-shaped steel interior edge C-shaped steel, can be directly by C-shaped steel upper wall It is welded and fixed with caravan chassis,
Some through holes are provided with C-shaped steel leading section, some through holes are also equipped with square tube rearward end, some circular discs 3 are pacified In through hole, the circular discs on C-shaped steel are engaged with the disk in square tube can guarantee that square tube when carrying out flexible, and square tube exists When larger displacement occurs the engagement of wheel and rack will not be caused to have some setbacks, will not also cause cannot normal operation situation hair Raw, circular discs can reduce room square tube sliding friction, more smooth in the rack motion in motor driven square tube, circular discs In the presence of spacing and stabilization effect is served again, allow square tube displacement in C-shaped steel to be limited within the scope of one, rack with Gear will not occur stuck phenomenon and have surplus,
C-shaped pipes leading section sets two pieces of connecting plates, and two pieces of connecting plates are respectively the first connecting plate 40, the second connecting plate 41, and first Connecting plate is fixedly connected with the left side wall of C-shaped steel, and the second connecting plate is fixedly connected with the right side wall of C-shaped steel, the first connecting plate First bearing seat 50 is glued with, the second connecting plate is glued with second bearing seat 51,
There are two first through hole 43 on first connecting plate, the first groove 44, the second connection are provided between two first through hole There are two the second through holes 45 on plate, the second groove 46 is provided between two the second through holes, there are two in first bearing seat Third through-hole 52, third through-hole position is relative with first through hole position, and first axle bearing bore is provided between two third through-holes, the One bearing hole site is relative with the first groove location, and clutch shaft bearing 53 is provided with first axle bearing bore, is had in second bearing seat Two fourth holes 54, fourth hole position is relative with the second lead to the hole site, and second bearing is provided between two fourth holes Hole, second bearing hole site is relative with the second groove location, is provided with second bearing 55 in second bearing hole, first bearing seat, Wear-resisting effect is played for brass part in the part for being used to install bearing in second bearing seat.
Bolt is through first through hole, third through-hole, the second through hole, fourth hole and uses locking nut clamping screw, protects Card will not produce loosening, and fixation, convenient detachable maintaining in the future are formed by bolt and locking nut;First connecting plate and first axle Bearing, the second connecting plate and second bearing seat can also be integrally formed.
Rack 20 is fixed with the bottom wall outer surface of square tube, rack is located between the left side wall and right side wall of C-shaped steel, tooth Bar is located at the opening of C-shaped steel;
Also include rotary shaft 6, rotary shaft is provided with through clutch shaft bearing, second bearing between clutch shaft bearing and second bearing Gear 60, gear are fixed on the rotating shaft, and gear rotates together with rotary shaft, and wheel and rack engages to form transmission mechanism, tooth Take turns increases service life for metallic sintered products, and the both sides of gear are respectively fixed with roller 7, and roller is fixed on the rotating shaft, roller Being contacted with square tube bottom wall outer surface, roller forms rolling friction with square tube, reduces resistance,
Also include push rod device, push rod device is also mounted on caravan chassis, and push rod device includes motor 80, and motor passes through shaft coupling Device is connected with screw mandrel 81, and feed screw nut 82 is provided with screw mandrel, and feed screw nut is fixedly connected with push rod 83, feed screw nut and push rod One end be fixedly connected, the other end of push rod is fixedly connected with the leading section of the square tube on a support, in use, electrically driven silk Bar rotates, and the feed screw nut on screw mandrel drives push rod to move, and push rod drives square tube to carry out stretching motion;
Also include connecting rod 9, connecting rod is used for the rotary shaft being fixedly connected on two adjacent stents, connecting rod one end with a support One end of rotary shaft be fixedly connected, the other end of connecting rod is fixedly connected with one end of the rotary shaft on another support;When pushing away When square tube on lever apparatus one support of drive carries out flexible, the rack meeting drive gear in square tube rotates, and gear is consolidated with rotary shaft It is fixed, and then drive rotary shaft to rotate, rotary shaft is rotated by another rotary shaft of connecting rod synchronous drive, and then is promoted another Wheel and rack transmission on one support, so the square tube on another support is also stretched, than hydraulically extensible oil simultaneously Expanding-contracting action is more smooth;
Also include synchronizing bar 10, the square tube on two adjacent stents is fixedly connected by synchronizing bar, and the both ends of synchronizing bar are respectively with two Leading section corresponding to square tube on adjacent stent is fixedly connected, and is more beneficial for adjacent two square tubes and is reached synchronous extended or retracted.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore:It is all according to The equivalence changes that structure, shape, the principle of the present invention is done, all should be covered by within protection scope of the present invention.

Claims (5)

  1. A kind of 1. caravan extendable bracket, it is characterised in that:Including more than two, support,
    Support includes C-shaped steel, square tube is inserted in C-shaped steel, and rack is provided with the outer surface of square tube bottom wall, is set on C-shaped steel Telescopic moving can be carried out with rack meshed gears, square tube along the bearing of trend of C-shaped steel by having, and the upper wall of C-shaped steel is fixed on caravan On chassis;
    Gear on two adjacent stents is fixedly connected by connecting rod, and realizes that the gear synchronous on two adjacent stents rotates,
    Also include push rod device, push rod device includes screw mandrel, push rod, and screw mandrel one end is connected with motor, and silk is provided with screw mandrel Stem nut, feed screw nut are fixedly connected with push rod one end, and the other end of push rod is fixedly connected with one end of a square tube.
  2. 2. caravan extendable bracket according to claim 1, it is characterised in that:Clutch shaft bearing is provided with C-shaped steel left side wall , second bearing seat is provided with C-shaped steel right side wall, first bearing seat is oppositely arranged with second bearing seat, in first bearing seat Clutch shaft bearing is installed, second bearing is installed in second bearing seat,
    Also include rotary shaft, rotary shaft passes through clutch shaft bearing, second bearing, on the rotating shaft between clutch shaft bearing and second bearing Gear is fixed with, roller is respectively fixed with left and right sides of gear, roller contacts with square tube with bottom wall outer surface.
  3. 3. caravan extendable bracket according to claim 2, it is characterised in that:One end of connecting rod and the rotation on a support One end of axle is fixedly connected, and the other end of connecting rod is fixedly connected with one end of another support upper rotary shaft.
  4. 4. caravan extendable bracket according to claim 1, it is characterised in that:One end of screw mandrel passes through shaft coupling and motor phase Connection, feed screw nut is provided with screw mandrel, feed screw nut is fixedly connected with one end of push rod, the other end of push rod and a square tube One end is fixedly connected.
  5. 5. caravan extendable bracket according to claim 1, it is characterised in that:Also include synchronizing bar, on two adjacent stents Square tube is fixedly connected by synchronizing bar.
CN201710676414.XA 2017-08-09 2017-08-09 A kind of caravan extendable bracket Pending CN107336664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710676414.XA CN107336664A (en) 2017-08-09 2017-08-09 A kind of caravan extendable bracket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710676414.XA CN107336664A (en) 2017-08-09 2017-08-09 A kind of caravan extendable bracket

Publications (1)

Publication Number Publication Date
CN107336664A true CN107336664A (en) 2017-11-10

Family

ID=60216913

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710676414.XA Pending CN107336664A (en) 2017-08-09 2017-08-09 A kind of caravan extendable bracket

Country Status (1)

Country Link
CN (1) CN107336664A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108263268A (en) * 2018-03-08 2018-07-10 太仓东泰精密机械有限公司 A kind of improved caravan expanding device
CN108705969A (en) * 2018-08-02 2018-10-26 荣成市名骏户外休闲用品有限公司 A kind of caravan and method with electronic rear overhang room
CN108725300A (en) * 2018-05-29 2018-11-02 太仓东泰精密机械有限公司 A kind of secondary expansion chassis of caravan
CN113738200A (en) * 2021-09-02 2021-12-03 太仓东泰精密机械有限公司 Locking mechanism for vehicle expansion assembly and cabin body push-pull mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202482005U (en) * 2012-03-16 2012-10-10 张家港市金昌龙机械设备有限公司 Hydraulic barrow
CN203995902U (en) * 2014-06-18 2014-12-10 沈阳华锐世纪投资发展有限公司 A kind of slide device for caravan sliding bin and caravan
CN204506681U (en) * 2015-04-07 2015-07-29 荣成康派斯新能源车辆有限公司 A kind of caravan kitchen range top slideway
CN207140923U (en) * 2017-08-09 2018-03-27 浙江耀欧汽车零部件有限公司 A kind of caravan extendable bracket

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202482005U (en) * 2012-03-16 2012-10-10 张家港市金昌龙机械设备有限公司 Hydraulic barrow
CN203995902U (en) * 2014-06-18 2014-12-10 沈阳华锐世纪投资发展有限公司 A kind of slide device for caravan sliding bin and caravan
CN204506681U (en) * 2015-04-07 2015-07-29 荣成康派斯新能源车辆有限公司 A kind of caravan kitchen range top slideway
CN207140923U (en) * 2017-08-09 2018-03-27 浙江耀欧汽车零部件有限公司 A kind of caravan extendable bracket

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108263268A (en) * 2018-03-08 2018-07-10 太仓东泰精密机械有限公司 A kind of improved caravan expanding device
CN108725300A (en) * 2018-05-29 2018-11-02 太仓东泰精密机械有限公司 A kind of secondary expansion chassis of caravan
CN108705969A (en) * 2018-08-02 2018-10-26 荣成市名骏户外休闲用品有限公司 A kind of caravan and method with electronic rear overhang room
CN113738200A (en) * 2021-09-02 2021-12-03 太仓东泰精密机械有限公司 Locking mechanism for vehicle expansion assembly and cabin body push-pull mechanism
CN113738200B (en) * 2021-09-02 2023-09-19 太仓东泰精密机械有限公司 Locking mechanism for vehicle expansion assembly and cabin push-pull mechanism

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