CN207140923U - A kind of caravan extendable bracket - Google Patents
A kind of caravan extendable bracket Download PDFInfo
- Publication number
- CN207140923U CN207140923U CN201720992633.4U CN201720992633U CN207140923U CN 207140923 U CN207140923 U CN 207140923U CN 201720992633 U CN201720992633 U CN 201720992633U CN 207140923 U CN207140923 U CN 207140923U
- Authority
- CN
- China
- Prior art keywords
- square tube
- shaped steel
- push rod
- bearing
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model 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
Technical field
The utility model 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
The purpose of this utility model is to provide a kind of caravan extendable bracket, and its extendable bracket uses the cooperation of wheel and rack
It is driven, reaching synchronous by connecting rod stretches out with being retracted, and avoids square tube stuck, extendable bracket stretches smooth.
In order to solve the above technical problems, what the purpose of this utility model was realized in：
A kind of caravan extendable bracket, including more than two, support, support include C-shaped steel, insert square tube in C-shaped steel, side
Rack is installed, being provided with C-shaped steel can be along the extension of C-shaped steel with rack meshed gears, square tube on the outer surface of ttom of pipe wall
Direction carries out telescopic moving, and the upper wall of C-shaped steel is fixed on caravan chassis；Gear on two adjacent stents is fixed by connecting rod
Connection, 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, silk
Bar 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, push rod it is another
End 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 utility model is prominent and beneficial compared with prior art to be had the technical effect that：
C-shaped steel, is directly welded on caravan chassis by caravan extendable bracket of the present utility model, is filled using a push rod
Put and a square tube be driven, by wheel and rack coordinate pass work(, while in the presence of connecting rod synchronous drive other
Square tube on support 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 overall structure diagram of the present utility model.
Fig. 2 is support overall structure diagram of the present utility model.
Fig. 3 is support left view structural representation of the present utility model.
Fig. 4 is support overall structure diagram of the present utility model.
Fig. 5 is support partial structural diagram of the present utility model.
Fig. 6 is support partial structural diagram of the present utility model.
Fig. 7 is support left view structural representation of the present utility model.
Fig. 8 is support partial structural diagram of the present utility model.
Fig. 9 is support partial structural diagram of the present utility model.
Figure 10 is bearing block structure schematic diagram of the present utility model.
Figure 11 is connecting board structure schematic diagram of the present utility model.
Figure 12 is push rod device structural representation of the present utility model.
Figure 13 is rotation shaft structure schematic diagram of the present utility model.
Figure 14 is disc structure schematic diagram of the present utility model.
Embodiment
In description of the present utility model, it is to be understood that term " on ", " under ", " top ", " bottom ", " interior ", " outer " etc.
The orientation or position relationship of instruction be based on orientation shown in the drawings or position relationship, or the utility model product use when
The orientation or position relationship usually put, or the orientation that usually understands of those skilled in the art or position relationship, be only for
Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified equipment or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
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.
The utility model is further described with specific embodiment 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 caravan
On chassis,
Support includes C-shaped steel 1, and the bottom wall of C-shaped steel has opening, and square tube 2, C-shaped steel one end are inserted from one end of C-shaped steel
It is rearward end for leading section, the other end, square tube one end is leading section, the other end is rearward end, by the leading section of square tube from C-shaped
The rearward end insertion of steel, 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 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, by some circles
Disk 3 is arranged in through hole, and the circular discs on C-shaped steel are engaged with the disk in square tube can guarantee that square tube when carrying out flexible, side
Pipe will not cause the engagement of wheel and rack to have some setbacks when larger displacement occurs, will not also cause cannot normal operation feelings
Condition occurs, and circular discs can reduce room square tube sliding friction, more smooth in the rack motion in motor driven square tube, circular
The presence of disk serves spacing and stabilization effect again, allows square tube displacement in C-shaped steel to be limited within the scope of one, tooth
Bar will not occur stuck phenomenon and have surplus with gear,
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,
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, and first connects
Fishplate bar is glued with first bearing seat 50, and the second connecting plate is glued with second bearing seat 51,
There are two first through hole 43 on first connecting plate, be provided with the first groove 44 between two first through hole, second
There are two the second through holes 45 on connecting plate, be provided with the second groove 46 between two the second through holes, have in first bearing seat
Two third through-holes 52, third through-hole position is relative with first through hole position, and clutch shaft bearing is provided between two third through-holes
Hole, clutch shaft bearing hole site is relative with the first groove location, is provided with clutch shaft bearing 53 in first axle bearing bore, in second bearing seat
With two fourth holes 54, fourth hole position is relative with the second lead to the hole site, and second is provided between two fourth holes
Bearing hole, second bearing hole site is relative with the second groove location, and second bearing 55, clutch shaft bearing are provided with second bearing hole
Wear-resisting effect is played for brass part in the part for being used to install bearing on seat, 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 pacified through clutch shaft bearing, second bearing between clutch shaft bearing and second bearing
Equipped with gear 60, gear is fixed on the rotating shaft, and gear rotates together with rotary shaft, and wheel and rack engages to form driver
Structure, gear are that metallic sintered products increase service life, and the both sides of gear are respectively fixed with roller 7, and roller is fixed on the rotating shaft,
Roller contacts with square tube bottom wall outer surface, and 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 is connected with screw mandrel 81, is provided with feed screw nut 82 on screw mandrel, and feed screw nut is fixedly connected with push rod 83, feed screw nut with
One end of push rod is fixedly connected, and the other end of push rod is fixedly connected with the leading section of the square tube on a support, in use, electrically driving
Dynamic screw mandrel 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 one
One end of rotary shaft on frame is fixedly connected, and the other end of connecting rod is fixedly connected with one end of the rotary shaft on another support；
When push rod device drives the square tube on a support to carry out flexible, the rack meeting drive gear in square tube rotates, and gear is with rotating
Axle is fixed, and then drives rotary shaft to rotate, and rotary shaft is rotated by another rotary shaft of connecting rod synchronous drive, and then is promoted
It is driven the wheel and rack on another support, so the square tube on another support is also stretched, than hydraulically extensible oil simultaneously
The expanding-contracting action of cylinder is more smooth；
Also include synchronizing bar 10, the square tube on two adjacent stents is fixedly connected by synchronizing bar, the both ends difference of synchronizing bar
Leading section corresponding with the square tube on two adjacent stents is fixedly connected, and is more beneficial for adjacent two square tubes and is reached synchronous stretching or contracting
Enter.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection model of the present utility model according to this
Enclose, therefore：All equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by protection of the present utility model
Within the scope of.
Claims (5)
- 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. 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. 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. 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. 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992633.4U CN207140923U (en) | 2017-08-09 | 2017-08-09 | A kind of caravan extendable bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992633.4U CN207140923U (en) | 2017-08-09 | 2017-08-09 | A kind of caravan extendable bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207140923U true CN207140923U (en) | 2018-03-27 |
Family
ID=61666213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720992633.4U Expired - Fee Related CN207140923U (en) | 2017-08-09 | 2017-08-09 | A kind of caravan extendable bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207140923U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336664A (en) * | 2017-08-09 | 2017-11-10 | 浙江耀欧汽车零部件有限公司 | A kind of caravan extendable bracket |
| CN108749701A (en) * | 2018-05-29 | 2018-11-06 | 太仓东泰精密机械有限公司 | A kind of double-motor power carriage side expansion rack |
-
2017
- 2017-08-09 CN CN201720992633.4U patent/CN207140923U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336664A (en) * | 2017-08-09 | 2017-11-10 | 浙江耀欧汽车零部件有限公司 | A kind of caravan extendable bracket |
| CN108749701A (en) * | 2018-05-29 | 2018-11-06 | 太仓东泰精密机械有限公司 | A kind of double-motor power carriage side expansion rack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20180809 |