CN208993665U - The gearshift of electronic trailer supporting leg and electronic trailer supporting leg - Google Patents

The gearshift of electronic trailer supporting leg and electronic trailer supporting leg Download PDF

Info

Publication number
CN208993665U
CN208993665U CN201821486491.5U CN201821486491U CN208993665U CN 208993665 U CN208993665 U CN 208993665U CN 201821486491 U CN201821486491 U CN 201821486491U CN 208993665 U CN208993665 U CN 208993665U
Authority
CN
China
Prior art keywords
gear
supporting leg
shaft
shell
gearshift
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.)
Withdrawn - After Issue
Application number
CN201821486491.5U
Other languages
Chinese (zh)
Inventor
吴志强
杨旻瑞
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.)
Guangdong Fuwa Heavy Industry Co Ltd
Original Assignee
Guangdong Fuwa Heavy Industry 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 Guangdong Fuwa Heavy Industry Co Ltd filed Critical Guangdong Fuwa Heavy Industry Co Ltd
Priority to CN201821486491.5U priority Critical patent/CN208993665U/en
Application granted granted Critical
Publication of CN208993665U publication Critical patent/CN208993665U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Abstract

The gearshift of electronic trailer supporting leg and electronic trailer supporting leg, gearshift include motor;Input shaft motor-driven is arranged with the gear set for rotating synchronously and being slided along the extending direction of input shaft with input shaft on input shaft, which includes first gear and second gear;Shell is equipped with first rotating shaft and the second shaft on the shell;Output shaft, first rotating shaft and the second shaft couple with the output shaft synchronous respectively;Assembly is stirred for drive gear set transverse shifting, it includes the driving lever, handle and reversing unit for being connected to gear set that this, which stirs assembly, the reversing unit is used in handle rotation, drive driving lever push gear set postpone output shaft extending direction it is mobile so that gear set switches between first state, the second state and the third state.The transverse shifting for being converted to gear set of handle is reduced the width of shell by setting reversing unit by the utility model, and simplifies the structure of gearshift.

Description

The gearshift of electronic trailer supporting leg and electronic trailer supporting leg
Technical field
The utility model relates to trailer supporting leg technical fields, and in particular to a kind of gearshift of electronic trailer supporting leg, together When also set up a kind of electronic trailer supporting leg with the gearshift.
Background technique
Supporting leg is normally used for that semitrailer is supported to need to mention using supporting leg for semitrailer when trailer is separated with tractor For necessary support;Traditional supporting leg is by manpower swinging handle, and Lai Shixian supporting leg stretches, such as patent document A kind of semi-trailer support disclosed in CN207747874U, swinging handle drive the rotation of sliding tooth wheel, then drive and be installed on tiltedly Screw rod rotation on gear, screw rod and nut cooperate, so that inside and outside supporting leg does stretching motion, although traditional supporting leg can Meet semitrailer support to require, still, in use, operator needs to impose biggish power ability swinging handle, real Existing inside and outside supporting leg stretches, and it is extremely inconvenient to use.
In order to improve the defect of traditional supporting leg, there is a kind of motor-driven supporting leg of utilization, such as patent document The electric supporting leg referred in CN105128828A, using motor as driving unit, and configures gearshift, makes to prop up Leg can manually adjust in power free situation, to expand the scope of application of supporting leg, gearshift be by stirring handle, Drive preceding rocker and rear rocker to swing, to change the meshing relation between gear, thus realize high speed, low speed and it is manual it Between conversion;When at least needing to be in three different positions in horizontal swing due to preceding rocker and rear rocker, just it is able to achieve Above-mentioned height, low speed, manual gear, therefore, the width of gear-box is firstly the need of meeting biggish preceding rocker and rear rocker Installation, while it should be also adapted to the amplitude of its swing, it avoids interfering with preceding rocker, rear rocker, therefore, gear-box usually needs It is configured to that there is biggish width, this results in the width of entire supporting leg to increase, the peace being unfavorable on supporting leg and semitrailer Dress.
Utility model content
In view of the deficiencies of the prior art, one of the purpose of this utility model is to provide a kind of shift of electronic trailer supporting leg Mechanism can reduce the width of gear box casing, and simplify the structure of gearshift.
The two of the purpose of this utility model are to provide a kind of electronic trailer supporting leg.
To achieve the above object one, the utility model adopts the following technical solution:
The gearshift of electronic trailer supporting leg, including
Motor;
Input shaft motor-driven is arranged on input shaft and rotates synchronously with input shaft and can be along the extension side of input shaft To the gear set of sliding, which includes first gear and second gear;
Shell is equipped with first rotating shaft and the second shaft on the shell;
Output shaft, first rotating shaft and the second shaft couple with the output shaft synchronous respectively;
Assembly is stirred for drive gear set transverse shifting, it includes the driving lever for being connected to gear set, hand that this, which stirs assembly, Handle and reversing unit, the extension which is used to that driving lever promotion gear set to be driven to postpone input shaft in handle rotation Direction is mobile, so that gear set switches between first state, the second state and the third state;
Wherein, in first state, first gear is engaged with first rotating shaft;In the second state, first gear and first Shaft separation, second gear are separated with the second shaft;In the third state, second gear is engaged with the second shaft.
Be provided with gear of output end on output shaft, in first rotating shaft synchronous connection have a linkage gear and with output end tooth The first transmission gear for taking turns engagement, synchronous connection has the second transmission gear engaged with gear of output end in the second shaft, the When one state, first gear is engaged with linkage gear.
Reversing unit is articulated in the intracorporal rotation axis of shell for one, and handle is fixed on one end of rotation axis, the side of the rotation axis Face is provided with a skewed slot, and driving lever and shell are slidably matched and can move on the extending direction of input shaft relative to shell, and One end of driving lever is connected to gear set, the other end is provided with the guide pin in the skewed slot of a sliding.
A guide rod parallel with input shaft is further fixed in shell, the middle part sliding of driving lever is set in the guide rod On.
Stirring assembly further includes a positioning component, the positioning component include the positioning disk for being fixed on the rotation axis other end, Registration arm and elastic element, there are three positioning grooves for the edge setting of the positioning disk, and one end of registration arm rotatably connects On shell, the other end one positioning checkpoint being fastened in one of positioning groove of formation, elastic element connection and shell Between registration arm, provided elastic stress is used to that positioning checkpoint to be made to remain that the movement swung towards positioning disk becomes Gesture.
Elastic element is a torsional spring, and one end of the torsional spring is resisted against on shell, the other end is resisted against in registration arm.
The synchronous connection of input shaft has a face gear, and the body of motor is fixed on the bottom wall outer of shell, and shaft is prolonged upwards The bottom wall of shell is stretched and passes through, the synchronous connection in part that the shaft of motor penetrates enclosure interior has a cone tooth engaged with face gear Wheel.
Gear set further includes a stepped groove, and stepped groove is provided on input shaft between first gear and second gear External splines, stepped groove sliding are socketed on external splines, and one end of driving lever is embedded in stepped groove and is held in the first tooth Between wheel and second gear.
To achieve the above object two, the utility model adopts the following technical solution:
Electronic trailer supporting leg, including interior supporting leg, the movable outer supporting leg being set in outside interior supporting leg and above-mentioned electronic The gearshift of trailer supporting leg is articulated with a screw rod extended along short transverse in outer supporting leg, has a nut, screw rod in interior supporting leg It wears and connects in nut;Shell is fixedly connected on outer supporting leg, output shaft connection synchronous with screw rod.
Output shaft is arranged in inside outer supporting leg and synchronous connection has the first helical gear, and the top of screw rod is connected with first tiltedly Second helical gear of gear engagement.
The utility model has the beneficial effects that:
Compared with the prior art, when the utility model is shifted gears, it is not necessary that the forward and backward rocker of swing is arranged in shell, pass through Reversing unit is set, by the transverse shifting for being converted to gear set of handle, enables gear set in high speed, low speed, manual Arbitrarily switch between state, so that shell is not necessarily to reduce the width of shell for the space of the element setting evacuation swung, and And simplify the structure of gearshift.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model gearshift;
Fig. 2 is the structural schematic diagram that the utility model stirs assembly;
Fig. 3 is the structural schematic diagram of the utility model positioning component;
Fig. 4 is the schematic diagram of the utility model manual mode;
Fig. 5 is the schematic diagram of the utility model lower-speed state;
Fig. 6 is the schematic diagram of the utility model fast state;
Fig. 7 is the structural schematic diagram of the electronic trailer supporting leg of the utility model.
Specific embodiment
In the following, being further described in conjunction with the drawings and specific embodiments to the utility model:
As shown in Figure 1, 2, 3, it is a kind of gearshift 100 of electronic trailer supporting leg of the utility model, is used to utilize Motor-driven supporting leg, to realize that such supporting leg in driving, can either realize manual and electric expansion, simultaneously simultaneously, moreover it is possible to It is enough to realize the flexible switching stretched with low speed of height, convenient for the accurately and quickly adjusting of landing leg stretching height, so that supporting leg is to hang Vehicle provides good support.
Specifically, the gearshift 100 of the electronic trailer supporting leg of the utility model include motor (not shown go out), shell, Input shaft 50, output shaft 20, first rotating shaft 30, the second shaft 40, gear set 60 and assembly is stirred, wherein shell is as entire The installation foundation of gearshift, for the ease of the installation of axis and gear, shell is arranged to two parts, i.e. left shell 11 and the right side Shell 12, left housing shell 11 and right shell body 12 snap together, and above-mentioned axis and gear are disposed around enclosure interior.Input shaft 50 are driven by motor, as power intake, the output power of motor are transferred to output shaft 20, and drive branch by output shaft 20 Leg is flexible;Gear set 60 is mounted on input shaft 50, which includes first gear 61 and second gear 62, first gear 61 and second gear 62 can be integral structure, the two is capable of the length direction sliding of input shaft 50 of postponing simultaneously, and It can be rotated with input shaft 50, to cooperate input shaft 50 to transmit the power of motor.First rotating shaft 30 and the second shaft 40 are all provided with It sets inside housings, and the connection synchronous with output shaft 20 respectively of first rotating shaft 30 and the second shaft 40, first rotating shaft 30, second Shaft 40 and output shaft 20 are to be arranged in parallel, along shell width direction extend, synchronize connection can particularly, First rotating shaft 30 is synchronous to couple the first transmission gear 31, and the second transmission gear 41 of synchronous connection, corresponding in the second shaft, defeated Synchronous connection gear of output end 21, the first transmission gear 31 and the second transmission gear 41 are protected with gear of output end 21 on shaft 20 Normal meshing state is held, first rotating shaft 30, the second shaft 40 is remained and links with output shaft 20;Certainly, it needs herein strong It adjusts, to keep the linkage of first rotating shaft 30 Yu output shaft 20, can not only use the intermeshing mode of said gear, also Can using other modes, such as belt gear, likewise, the others mode be also applied for the second shaft 40 with it is defeated The linkage of shaft 20.The utility model stirs assembly for driving 60 transverse shifting of gear set, particularly makes gear set suitable The extending direction for prolonging input shaft 50 is mobile, the gear set 60 postpone input shaft 50 move during, can be realized practical Novel gear shift mechanism switches between high speed, low speed, manual three states, and it includes driving lever 75, handle 74, commutation that this, which stirs assembly, Unit, driving lever 75 are connected on gear set 60, and the rotation of handle 74 can be converted to and be dialled when handle 74 rotates by reversing unit The transverse shifting of bar 75 then makes driving lever 75 that gear set 60 be pushed to slide on input shaft 50, realizes cutting for above three state It changes.Specifically, reversing unit is a rotation axis 71, which is articulated in shell, and the outboard end of rotation axis 71 is pierced by To hull outside, handle 74 is located at hull outside and is fixedly connected on the outboard end of the rotation axis 71, in the rotation axis 71 Side is provided with a skewed slot 711, and driving lever 75 is slidably matched with shell, make it have the length direction of input shaft 50 of postponing relative to The freedom degree of shell movement, one end of driving lever 75 is connected on gear set 60, the other end is a guide pin 751, the guide pin 751 Sliding is embedded in skewed slot 711, in this way, the side wall pushing tow of skewed slot 711 is led when stirring the drive rotation of rotation axis 71 of handle 74 To pin 751, so that driving lever 75 is postponed 50 transverse shifting of input shaft, then push gear set 60 mobile.It is low due to needing to be arranged one Fast shelves, therefore, it is necessary to set a diameter relative to the lesser gear of second gear 62, in order to make first for first gear 61 Gear 61 can link after gear set is moved to corresponding position with first rotating shaft 30, the utility model in first rotating shaft 30 also Synchronous connection has a linkage gear 32, in this way, behind the mobile above-mentioned corresponding position of gear set 60, first gear 61 and the connection Moving gear 32 engages, in this way, first rotating shaft 30 can be transferred to by input shaft 50 for power, then by 31 He of the first transmission gear Power is transferred to output shaft 20 by gear of output end 51, and being also possible to first rotating shaft 30, to be fixed on shell first gear 31 opposite It can be rotated in first rotating shaft 30.
A guide rod 73 is further fixed in order to enable driving lever 75 smoothly to slide, in shell, the guide rod 73 and input Axis 50 is arranged in parallel, and the middle part sliding of driving lever 75 is socketed on the guide rod 73.It is of course also possible to be set in the inner wall of shell A linear guide is set by driving lever 75 is slidably mounted in the linear guide, so that the smooth sliding when being pushed of driving lever 75.
In addition, in other embodiments, the utility model can also be using other structures replace above-mentioned skewed slot and Guide pin, to push 75 transverse shifting of driving lever, for example, it may be in one fin of setting that the surface of rotation axis 71 is protruded, it should The inclined extension of fin, fin are connected to driving lever 75, a spring can be set between driving lever 75 and shell, which is used for will Driving lever 75 is always towards the direction pushing tow close to fin, that is to say, that fin moves inward for pushing tow driving lever 75, and driving lever 75 reset is realized by the elastic stress of spring.
It is shown in Figure 4, it is the utility model one of which state, in this state, gear set 60 is between linkage gear 32 and the second position between transmission gear 41 at, first gear 61 is separated with first rotating shaft 30, i.e. first gear 61 and linkage Gear 32 is discrete state, and second gear 62 is separated with the second shaft 40, i.e., second gear 62 is to separate with second driving shaft 40 State, in this state, the power of motor can not pass to output shaft 20 by first rotating shaft 30 and the second shaft 40, at this time Operator is manual to drive output shaft 20 to rotate using the rocker arm being detachably connected on supporting leg with output shaft 20, this state is hand Dynamic shelves.
It is shown in Figure 5, when gear set is moved to the position of a setting towards close 32 direction of linkage gear, first Gear 61 is engaged with linkage gear 32, i.e. the connection synchronous with first rotating shaft 30 of first gear 61, at this point, what the power of motor transmitted Sequence is successively are as follows: motor, input shaft, first gear 61, linkage gear 32, first rotating shaft 30, the first transmission gear 31, output end Gear 21, output shaft 20.Since the diameter of first gear 61 is smaller, when gear set 60 is in the state, as low speed Shelves, low or first gear can accurately adjust the stroke of supporting leg, and have biggish torque.
It is shown in Figure 6, when gear set to close to the second transmission gear 41 direction to one set position when, first Gear 61 is separated with linkage gear 32, and second gear 62 is then engaged with the second transmission gear 41, at this time second gear 62 and second Transmission shaft 40 couples, and in this state, the power of the power of motor transmitting is successively are as follows: motor, input shaft, second gear 62, the Two transmission gears 41, gear of output end 21, output shaft 20.Second gear 62 is relatively large in diameter, and therefore, gear set 60 is in the shape When state, as work as at a high speed, can realize the quick-expansion of supporting leg at this time, improve efficiency.
It is stirred referring to Fig. 3 in order to which gear set 60 is locked in manual, low speed, fast state shown in above-mentioned Fig. 4,5,6 Assembly further includes a positioning component 72, which includes positioning disk 721, registration arm 722 and torsional spring 723, positioning disk 721 are fixedly connected on the one end of rotation axis 71 far from handle 74, and there are three positioning groove a, b, c, positioning for setting on positioning disk 721 One end of arm 722 is rotatably coupled on shell, the other end forms a positioning checkpoint 7221, and one end of torsional spring 723 is supported In on shell, the other end be resisted against in registration arm 722, using the elastic stress of torsional spring 723, remain positioning checkpoint 7221 The movement tendency swung towards positioning disk 721, in this way, when positioning checkpoint 7221 is fastened in one of positioning groove, Not under the premise of by external force, positioning checkpoint 7221 limits the rotation of positioning disk 721, then prevents rotation axis 71 from rotating, makes to rotate Axis 71 is maintained at corresponding state.In above-mentioned state shown in Fig. 4, positioning checkpoint 7221 is located in positioning groove b, in Fig. 5 Shown in state when, positioning checkpoint 7221 is located in positioning groove a, and when state shown in Fig. 6, and positioning checkpoint 7221 is located at In positioning groove c.When needing to shift gears, rotational handle 74, the side wall pushing tow positioning checkpoint 7221 of groove overcomes torsional spring 723 Elastic stress is caught in positioning checkpoint 7221 again in other positioning grooves.Certainly, in other embodiments, above-mentioned torsional spring 723 can be using other elastic elements replacements, for example, the spring between shell and registration arm 722 is arranged in, spring is always Pushing tow registration arm 722 is installed on positioning checkpoint in one of positioning groove, is provided in short, elastic element is capable of providing Elastic stress make positioning checkpoint 7221 remain towards positioning disk 71 direction swing movement tendency.
In the utility model, motor is placed in the lower section of shell, one face gear 51 of synchronous connection on input shaft 50, electricity The body of machine is fixed on the bottom wall outer of shell, and the shaft of motor passes through preset mounting hole in shell bottom wall, and in motor Shaft penetrates one bevel gear of the synchronous connection in end of enclosure interior, which engages with face gear.In this way, motor is placed in The lower section of shell makes motor not protrude from the lateral surface of shell, to reduce the width of supporting leg.
The gear set 60 of the utility model further includes a stepped groove, stepped groove be located at first gear 61 and second gear 62 it Between, i.e., first gear 61, second gear 62 are integrally formed by an interconnecting piece being arranged between the two, and stepped groove setting exists On the outside of socket part;External splines is provided on input shaft 50, stepped groove gear set is socketed on external splines, in this way, by gear set 60 It is slidably mounted on input shaft 50, and ensures that gear set 60 can be rotated with input shaft 50, one end of driving lever 75 is embedded in In stepped groove and it is held between first gear 61 and second gear 62.
It,, will by the way that reversing unit is arranged it is not necessary that the forward and backward rocker of swing is arranged in shell when the utility model is shifted gears The transverse shifting for being converted to gear set of handle, enables gear set arbitrarily to cut between high speed, low speed, manual mode It changes, so that shell is not necessarily to the space avoided for the element setting swung, and simplifies the structure of gearshift.
As shown in fig. 7, the electronic trailer supporting leg of the utility model includes interior supporting leg 300, outer supporting leg 200 and above-mentioned electricity The gearshift 100 of dynamic trailer supporting leg, outer supporting leg 200 is movable to be set in outside interior supporting leg 300, is equipped in outer supporting leg 200 One screw rod 203, the screw rod and outer supporting leg 200, which pivot, to be cooperated, and is provided with a nut 301 in interior supporting leg 300, screw rod 203, which is worn, to be connect In the nut 301, the shell of the gearshift 100 of above-mentioned electronic trailer supporting leg is fixed on the side of outer supporting leg 200, output shaft 20 Connection synchronous with screw rod 203, i.e. output shaft 20 drive screw rod 203 to rotate, and by the cooperation of screw rod 203 and nut 301, realize outer Supporting leg 300 and interior supporting leg 200 it is flexible.It is internally provided with the first helical gear 201 and the second helical gear 202 in outer supporting leg 200, The axis of second helical gear 202 is overlapped with screw rod 203, and the top of screw rod 203 is connected on second helical gear 202, output shaft The part that 20 one end protrudes from hull outside is arranged in inside outer supporting leg 200, and end of output shaft 20 and first is tiltedly The synchronous connection of gear 201.The electronic trailer supporting leg of the utility model, by the way that above-mentioned gearshift is arranged, it can be achieved that low speed, high speed With the switching manually adjusted so that supporting leg in the state of non-transformer also can normal use, while can be realized high speed, low speed Switching, so that supporting leg is preferably supported trailer.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations;Although referring to aforementioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that, it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features, and these It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (10)

1. the gearshift of electronic trailer supporting leg, which is characterized in that including
Motor;
Input shaft motor-driven is arranged on input shaft and rotates synchronously with input shaft and can be sliding along the extending direction of input shaft Dynamic gear set, the gear set include first gear and second gear;
Shell is equipped with first rotating shaft and the second shaft on the shell;
Output shaft, first rotating shaft and the second shaft couple with the output shaft synchronous respectively;
Stir assembly for drive gear set transverse shifting, this stir assembly include the driving lever for being connected to gear set, handle, with And reversing unit, the extending direction which is used to that driving lever promotion gear set to be driven to postpone input shaft in handle rotation It is mobile, so that gear set switches between first state, the second state and the third state;
Wherein, in first state, first gear is engaged with first rotating shaft;In the second state, first gear and first rotating shaft Separation, second gear are separated with the second shaft;In the third state, second gear is engaged with the second shaft.
2. the gearshift of electronic trailer supporting leg as described in claim 1, which is characterized in that be provided with output end on output shaft Gear, the first transmission gear that synchronous connection has a linkage gear and engages with gear of output end in first rotating shaft, second turn Synchronous connection has the second transmission gear engaged with gear of output end, in first state, first gear and linkage gear on axis Engagement.
3. the gearshift of electronic trailer supporting leg as described in claim 1, which is characterized in that reversing unit is articulated in shell for one Intracorporal rotation axis, handle are fixed on one end of rotation axis, and the side of the rotation axis is provided with a skewed slot, and driving lever and shell slide Cooperate and can be moved on the extending direction of input shaft relative to shell, and one end of driving lever is connected to gear set, the other end It is provided with the guide pin in skewed slot of a sliding.
4. the gearshift of electronic trailer supporting leg as claimed in claim 3, which is characterized in that be further fixed in shell one with it is defeated Enter the parallel guide rod of axis, the middle part sliding of driving lever is set on the guide rod.
5. the gearshift of electronic trailer supporting leg as claimed in claim 3, which is characterized in that stirring assembly further includes one fixed Hyte part, the positioning component include the positioning disk for being fixed on the rotation axis other end, registration arm and elastic element, the positioning disk Edge setting there are three positioning groove, one end of registration arm is rotatably coupled on shell, the other end forms a card and sets Positioning checkpoint in a wherein positioning groove, between elastic element connection and shell and registration arm, provided elasticity Stress is used to that positioning checkpoint to be made to remain the movement tendency swung towards positioning disk.
6. the gearshift of electronic trailer supporting leg as claimed in claim 5, which is characterized in that elastic element is a torsional spring, should One end of torsional spring is resisted against on shell, the other end is resisted against in registration arm.
7. the gearshift of electronic trailer supporting leg as described in claim 1, which is characterized in that the synchronous connection of input shaft has one side Gear, the body of motor are fixed on the bottom wall outer of shell, and shaft upwardly extends and pass through the bottom wall of shell, the shaft of motor The synchronous connection in part for penetrating enclosure interior has a bevel gear engaged with face gear.
8. the gearshift of electronic trailer supporting leg as described in claim 1, which is characterized in that gear set further includes a ladder Slot, stepped groove are provided with external splines between first gear and second gear on input shaft, being socketed in for gear set sliding is outer On spline, one end of driving lever in stepped groove and is held between first gear and second gear.
9. electronic trailer supporting leg, which is characterized in that including interior supporting leg, the movable outer supporting leg being set in outside interior supporting leg and Such as the gearshift of the described in any item electronic trailer supporting legs of claim 1-8, one is articulated in outer supporting leg and is prolonged along short transverse The screw rod stretched has a nut in interior supporting leg, and screw rod, which is worn, to be connect in nut;Shell is fixedly connected on outer supporting leg, output shaft and silk The synchronous connection of bar.
10. electronic trailer supporting leg as claimed in claim 9, which is characterized in that output shaft is arranged in inside outer supporting leg and synchronous Connection has the first helical gear, and the top of screw rod is connected with the second helical gear engaged with the first helical gear.
CN201821486491.5U 2018-09-12 2018-09-12 The gearshift of electronic trailer supporting leg and electronic trailer supporting leg Withdrawn - After Issue CN208993665U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821486491.5U CN208993665U (en) 2018-09-12 2018-09-12 The gearshift of electronic trailer supporting leg and electronic trailer supporting leg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821486491.5U CN208993665U (en) 2018-09-12 2018-09-12 The gearshift of electronic trailer supporting leg and electronic trailer supporting leg

Publications (1)

Publication Number Publication Date
CN208993665U true CN208993665U (en) 2019-06-18

Family

ID=66801187

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821486491.5U Withdrawn - After Issue CN208993665U (en) 2018-09-12 2018-09-12 The gearshift of electronic trailer supporting leg and electronic trailer supporting leg

Country Status (1)

Country Link
CN (1) CN208993665U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109017712A (en) * 2018-09-12 2018-12-18 广东富华重工制造有限公司 The gearshift of electronic trailer supporting leg and electronic trailer supporting leg

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109017712A (en) * 2018-09-12 2018-12-18 广东富华重工制造有限公司 The gearshift of electronic trailer supporting leg and electronic trailer supporting leg
CN109017712B (en) * 2018-09-12 2024-05-14 广东富华重工制造有限公司 Gear shifting mechanism of electric trailer support leg and electric trailer support leg

Similar Documents

Publication Publication Date Title
US9555856B2 (en) Electric front derailleur
TWI547416B (en) Bicycle derailleur
CN103909519B (en) The parallel connection change born of the same parents platform that a kind of free degree is variable
CN208993665U (en) The gearshift of electronic trailer supporting leg and electronic trailer supporting leg
CN109417871A (en) A kind of rotary cultivator
CN106352037B (en) Telescopic component and electric drawer cabinet
CN114310996B (en) Opening and closing driving mechanism and manipulator assembly
CN203656102U (en) Linear reciprocating mechanism
CN109017712A (en) The gearshift of electronic trailer supporting leg and electronic trailer supporting leg
CN109826926B (en) Automatic door opening device and refrigerator with same
CN212605517U (en) Four-crawler-wheel agricultural chassis
CN202732915U (en) Automobile automatic transmission gearshift unlocking mechanism
CN212616251U (en) Synchronous gear shifting device of double-gearbox
CN210205883U (en) Driving device of toy and toy comprising same
CN210468123U (en) Antenna, power input device with downward inclination angle adjustment and switching mechanism
CN208487199U (en) A kind of motor-driven gear shift transmission mechanism with electric hybrid powering differential mechanism
CN208184507U (en) Automobile side-door electric driving mechanism
CN109424734B (en) Speed-changing reversing transmission mechanism of rotary cultivator
CN212435666U (en) Multi-angle transform easy-to-install photoelectric switch
CN213742879U (en) Electric retractable door driving assembly
CN110690571B (en) Antenna, power input device for downward inclination adjustment and switching mechanism
CN210540191U (en) Bed panel coupling rotating device and bed with same
CN112243697B (en) Transmission shaft device for swing arm type agricultural machine
CN216107513U (en) Needle pitch adjusting mechanism
CN220581542U (en) High-low gear output shaft

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20190618

Effective date of abandoning: 20240514

AV01 Patent right actively abandoned

Granted publication date: 20190618

Effective date of abandoning: 20240514

AV01 Patent right actively abandoned
AV01 Patent right actively abandoned