CN208747538U - Folding electric jack - Google Patents
Folding electric jack Download PDFInfo
- Publication number
- CN208747538U CN208747538U CN201821453615.XU CN201821453615U CN208747538U CN 208747538 U CN208747538 U CN 208747538U CN 201821453615 U CN201821453615 U CN 201821453615U CN 208747538 U CN208747538 U CN 208747538U
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- gear
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- gear housing
- shaft
- jack
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Abstract
The utility model belongs to technical field of crane equipment, is related to a kind of folding electric jack, including fixed bracket, the jack body assembly being rotatably dispose on the fixed bracket；The jack body assembly includes gear housing structure and is installed in the gear housing structure and drives the tube assembly for carrying out stretching motion by gear housing structure；The outer surface setting sliding sleeve and spring of the tube assembly, sliding sleeve one end is limited by tube assembly far from the shaft shoulder that gear housing structure side is formed, the spring one end is pressed in sliding sleeve other end, and the spring other end is pressed in the end face in tube assembly close to gear housing structure side.The utility model product quickly can be supported and be packed up；Using 2 or more, this jack can fast implement horizontal automatic adjustment；It is able to achieve automatic control, is operated without artificial mechanism；Effectively reduce length direction volume, it is easier to be installed on car body；It manipulates, follows the walk at any time, especially suitable for mobile caravan.
Description
Technical field
The utility model belongs to technical field of crane equipment, is related to a kind of folding electric jack.
Background technique
With economic development, national GDP increases, and people's living standards are constantly improving, and people are to psychological consumption
Demand is continuously increased, particularly in terms of camping/self-driving travel, and domestic caravan market is driven to continue to develop；In addition with informationization
Intelligentized development, special type vehicle/caravan appear in each row, and such as fire-fighting command caravan, first aid caravan, caravan etc. is commanded in public security.Room in a word
Vehicle appears in the every aspect of our lives in different forms.
For these caravans in stop or fixation, jack is at essential support device, in order to more rapidly safer
Fixation caravan, particularly contemplate mobile caravan can stop at any time support and pack up mobile demand, we redesign
A kind of folding electric jack that can quickly support and quickly pack up.
This, which folds jack, electronic program control, knows that support or receipts can be realized in simple operations control button or mobile phone
The movement risen, the movement of disassembly installation need to be thought by saving original non-collapsible jack.
Summary of the invention
For the utility model in view of the above-mentioned problems, providing a kind of folding electric jack, which enables to caravan fast
Speed support quickly packs up jack, and operating process is quick, safe.
According to the technical solution of the utility model includes: a kind of folding electric jack, which is characterized in that including fixed bracket,
The jack body assembly being rotatably dispose on the fixed bracket；The jack body assembly include gear housing structure and
It is installed in the gear housing structure and drives the tube assembly for carrying out stretching motion by gear housing structure；The tube assembly
Sliding sleeve and spring is arranged in outer surface, and sliding sleeve one end is limited by tube assembly far from the shaft shoulder that gear housing structure side is formed, described
Spring one end is pressed in sliding sleeve other end, and the spring other end is pressed in the end in tube assembly close to gear housing structure side
Face；Connecting rod, the connecting rod other end are connected corresponding to the hinge joint rotated down of jack body assembly on the fixed bracket
It is rotatablely connected by bolt and sliding sleeve outer surface；Horizontality, tube assembly full extension are in when the tube assembly is shunk completely
When it is in a vertical state.
The fixed bracket is equipped with the first limit switch as a further improvement of the utility model, and connecting rod is equipped with
Second limit switch, tube assembly is when in a horizontal state, the first limit switch and the second limit switch abutting contact；Jack master
Limited post is fixed on body component, when tube assembly is in a vertical state, limited post and fixed bracket abutting contact.
The output end of the gear housing is transmission shaft, the input of tube assembly as a further improvement of the utility model,
End is connecting shaft；The connecting shaft is equipped with link slot, and transmission shaft is equipped with boss, and boss is matched with link slot, realizes connecting shaft
With the transmission connection of transmission shaft.
As a further improvement of the utility model, the gear housing structure include motor, it is motor cover, transmission shaft, defeated
Gear, gear box cover, gear-box lower cover out, the gear box cover are fastenedly connected with gear-box lower cover pairing, transmission shaft two
Rotational support is covered under gear box cover, gear-box respectively at end, and output gear is fixed on transmission shaft, and motor is installed on gear
Under case on lid, the driving gear set in gear housing structure drives output gear, and output gear interlocks transmission shaft.
The tube assembly includes outer tube, outer tube and gear housing fastening structure as a further improvement of the utility model,
Connection, inner tube are equipped in outer tube, and inner tube can be moved axially relative to outer tube, and inner tube is close to gear housing structure one end
It is fixed with feed screw nut, screw rod is threadedly coupled with feed screw nut, and screw rod is connect with connecting shaft by pin, is covered in the connecting shaft
If plane thrust roller bearing, plane thrust roller bearing one end is limited by the annular projection formed in connecting shaft, and plane pushes away
The power roller bearing other end passes through the baffle limiting of outer tube shaft end, is arranged plane on the outside diameter of axle of connecting shaft stretching outer tube baffle
Needle roller thrust bearing, plane needle roller thrust bearing one end pass through the semicircle card being arranged in connecting shaft by baffle limiting, the other end
Ring limit.
The connecting shaft is equipped with card slot as a further improvement of the utility model, two pairings of setting in card slot
Half-round clamping ring.
Outer tube is stretched out in said inner tube outer end as a further improvement of the utility model, and inner tube is stretched out outer tube part and formed
The shaft shoulder be tube assembly the shaft shoulder, sliding sleeve is sheathed on outer tube, sheath is arranged on sliding sleeve, the both ends of sheath are respectively arranged with hose
Hoop.
The jack body assembly is connected by shaft and fixed holder pivots as a further improvement of the utility model,
It connects.
The connecting rod is connect by pin shaft with fixed holder pivots as a further improvement of the utility model,.
The utility model has the technical effect that the utility model product quickly can be supported and be packed up；Use 2 or more
This jack can fast implement horizontal automatic adjustment；It is able to achieve automatic control, is operated without artificial mechanism；Effectively reduce length
Direction volume, it is easier to be installed on car body；It manipulates, follows the walk at any time, especially suitable for mobile caravan.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is structural schematic diagram when jack body assembly is rotated to 45 °.
Fig. 4 is the cross-sectional view of Fig. 3.
Fig. 5 is the stress diagram that the utility model is rotated to vertical state.
Fig. 6 is the structural schematic diagram that jack body assembly has just turned to vertical state.
Fig. 7 is the cross-sectional view of Fig. 6.
Fig. 8 is jack body assembly holding state structural schematic diagram.
Fig. 9 is the cross-sectional view of Fig. 8.
Specific embodiment
Specific embodiment of the present utility model is further described with reference to the accompanying drawing.
In Fig. 1 ~ 9, including motor 1, motor cover 2, transmission shaft 3, boss 3-1, output gear 4, gear box cover 5, fixation
Bracket 6, half-round clamping ring 8, plane needle roller thrust bearing 9, plane thrust roller bearing 10, connecting shaft 11, connects gear-box lower cover 7
Access slot 11-1, feed screw nut 12, spring 13, screw rod 14, sliding sleeve 15, outer tube 16, inner tube 17, sheath 18, hose clamp 19, bolt
20, connecting rod 21, the first limit switch 22-1, the second limit switch 22-2, shaft 23, pin shaft 24, limited post 25, jack main body
Component 26 etc..
As shown in Fig. 1 ~ 9, the utility model is a kind of folding electric jack, including fixes bracket 6, is rotatably dispose in institute
State the jack body assembly 26 on fixed bracket 6；The jack body assembly 26 includes gear housing structure and is installed on
Drive in the gear housing structure and by gear housing structure the tube assembly for carrying out stretching motion；The outer surface of the tube assembly
Sliding sleeve 15 and spring 13 are set, and 15 one end of sliding sleeve is limited by tube assembly far from the shaft shoulder that gear housing structure side is formed, described
13 one end of spring is pressed in 15 other end of sliding sleeve, and 13 other end of spring is pressed in tube assembly close to gear housing structure side
End face；Connecting rod 21, the company are connected corresponding to the hinge joint rotated down of jack body assembly 26 on the fixed bracket 6
21 other end of bar is rotatablely connected by bolt 20 and 15 outer surface of sliding sleeve；Horizontality is in when the tube assembly is shunk completely,
It is in a vertical state when tube assembly full extension.
Fixed bracket 6 is equipped with the first limit switch 22-1, and connecting rod 21 is equipped with the second limit switch 22-2, at tube assembly
When horizontality, the first limit switch 22-1 and the second limit switch 22-2 abutting contact；It is solid on jack body assembly 26
Surely there is limited post 25, when tube assembly is in a vertical state, limited post 25 and fixed 6 abutting contact of bracket.
The output end of gear housing is transmission shaft 3, and the input terminal of tube assembly is connecting shaft 11；The connecting shaft 11, which is equipped with, to be connected
Access slot 11-1, transmission shaft 3 are equipped with boss 3-1, and boss 3-1 is matched with link slot 11-1, realize connecting shaft 11 and transmission shaft 3
Transmission connection.
Gear housing structure includes under motor 1, motor cover 2, transmission shaft 3, output gear 4, gear box cover 5, gear-box
Lid 7, the gear box cover 5 are fastenedly connected with 7 pairing of gear-box lower cover, and rotational support is distinguished in gear-box in 3 both ends of transmission shaft
In upper cover 5, gear-box lower cover 7, output gear 4 is fixed on transmission shaft 3, and motor 1 is installed on gear-box lower cover 7, gear-box
Driving gear set in body structure drives output gear 4, and output gear 4 interlocks transmission shaft 3.
Tube assembly includes outer tube 16, and outer tube 16 is connect with gear housing fastening structure, and inner tube 17 is equipped in outer tube 16
In, inner tube 17 can be moved axially relative to outer tube 16, and inner tube 17 is fixed with feed screw nut 12 close to gear housing structure one end,
Screw rod 14 is threadedly coupled with feed screw nut 12, and screw rod 14 is connect with connecting shaft 11 by pin, is arranged in the connecting shaft 11 flat
Face thrust roller bearing 10,10 one end of plane thrust roller bearing are limited by the annular projection formed in connecting shaft 11, plane
10 other end of thrust roller bearing passes through the baffle limiting of 16 shaft end of outer tube, and connecting shaft 11 stretches out the outside diameter of axle of 16 baffle of outer tube
On be arranged plane needle roller thrust bearing 9,9 one end of plane needle roller thrust bearing passes through connecting shaft 11 by baffle limiting, the other end
The half-round clamping ring 8 of upper setting limits.
Connecting shaft 11 is equipped with card slot, and the half-round clamping ring 8 of two pairings is arranged in card slot.
Outer tube 16 is stretched out in 17 outer end of inner tube, and inner tube 17 stretches out the shaft shoulder that the shaft shoulder that 16 part of outer tube is formed is tube assembly, sliding
Set 15 is sheathed on outer tube 16, sheath 18 is arranged on sliding sleeve 15, the both ends of sheath 18 are respectively arranged with hose clamp 19.
Jack body assembly 26 is rotatablely connected by shaft 23 and fixed bracket 6.
Connecting rod 21 is rotatablely connected by pin shaft 24 and fixed bracket 6.
The course of work of the utility model product is as follows: is retracted to during being rotated by 90 ° as shown in Fig. 1 ~ 6, motor 1 drives
After dynamic screw rod 14 rotates, drive feed screw nut 12 that inner tube 17 is made to do axial relative movement with respect to outer tube 16.Such as 5 institute of stress sketch
Show, fixed bracket 6 is fixing piece, and connecting rod 21 and fixed bracket 6 pass through pin shaft 24 and form hinge；Gear housing structure and tube assembly
Fig. 1, jack body assembly 26 shown in 2, jack body assembly 26 and fixed bracket 6 are formed after connecting by fastening bolt
Hinge is formed by the connection of shaft 23；Sliding sleeve 15 connect to form hinge by bolt 20 with connecting rod 21；Sliding sleeve 15 can prolong jack
Body assembly 26 slides axially；It is Ft that elastic force is formed under the action of compressed 13 elastic force of spring, and elastic force Ft is resolved into through connecting rod
Power Fr perpendicular to the connecting rod and power Fs for being parallel to connecting rod, Fr act on connecting rod one end, and the other end is hinge, therefore connecting rod 21 1
End forms torque M r under Fr effect centered on shaft makes connecting rod 21 make rotating motion around pin shaft 24, and connecting rod 21 prolongs sliding sleeve 15
Jack body assembly 26 axially moves while jack body assembly 26 23 makes rotating motion around the shaft.When rotation is to 90 degree
When, limited post 25 is contacted with fixed bracket 6, and forming torque centered on shaft 23 to jack body assembly 26 is Mx, limit
The torque M x that column 25 generates is identical as the torque square Mr size of connecting rod 21, contrary, and tube assembly and fixed bracket 6 are fixed at this time
Face is vertical, and keeps stable state, and feed screw nut 12 continues to move to and body assembly no longer rotates.
Claims (9)
1. a kind of folding electric jack, which is characterized in that including fixed bracket (6), be rotatably dispose in the fixed bracket (6)
On jack body assembly (26)；The jack body assembly (26) includes gear housing structure and is installed on the gear
Drive on body structure and by gear housing structure the tube assembly for carrying out stretching motion；Sliding sleeve is arranged in the outer surface of the tube assembly
(15) and spring (13), sliding sleeve (15) one end are limited by tube assembly far from the shaft shoulder that gear housing structure side is formed, the bullet
Spring (13) one end is pressed in sliding sleeve (15) other end, and spring (13) other end is pressed in tube assembly close to gear housing structure
The end face of side；Hinge joint rotated down on the fixed bracket (6) corresponding to jack body assembly (26) connects connecting rod
(21), connecting rod (21) other end is rotatablely connected by bolt (20) and sliding sleeve (15) outer surface；The tube assembly is received completely
Horizontality is in when contracting, when tube assembly full extension is in a vertical state.
2. folding electric jack as described in claim 1, it is characterised in that: the fixed bracket (6) is equipped with the first limit
Bit switch (22-1), connecting rod (21) are equipped with the second limit switch (22-2), and tube assembly is when in a horizontal state, and the first limit is opened
Close (22-1) and the second limit switch (22-2) abutting contact；It is fixed with limited post (25), manages on jack body assembly (26)
When component is in a vertical state, limited post (25) and fixed bracket (6) abutting contact.
3. folding electric jack as described in claim 1, it is characterised in that: the output end of the gear housing is transmission shaft
(3), the input terminal of tube assembly is connecting shaft (11)；The connecting shaft (11) is equipped with link slot (11-1), and transmission shaft (3) is equipped with convex
Platform (3-1), boss (3-1) are matched with link slot (11-1), realize the transmission connection of connecting shaft (11) and transmission shaft (3).
4. folding electric jack as claimed in claim 1 or 3, it is characterised in that: the gear housing structure includes motor
(1), motor cover (2), transmission shaft (3), output gear (4), gear box cover (5), gear-box lower cover (7), on the gear-box
Lid (5) is fastenedly connected with gear-box lower cover (7) pairing, and rotational support is distinguished in gear box cover (5), tooth in transmission shaft (3) both ends
On roller box lower cover (7), output gear (4) is fixed on transmission shaft (3), and motor (1) is installed on gear-box lower cover (7), gear
Driving gear set in body structure drives output gear (4), and output gear (4) interlocks transmission shaft (3).
5. folding electric jack as described in claim 1, it is characterised in that: the tube assembly includes outer tube (16), outer tube
(16) it is connect with gear housing fastening structure, inner tube (17) is equipped in outer tube (16), and inner tube (17) can be relative to outer tube
(16) it moves axially, inner tube (17) is fixed with feed screw nut (12) close to gear housing structure one end, screw rod (14) and screw rod
Nut (12) is threadedly coupled, and screw rod (14) is connect by pin with connecting shaft (11), is arranged plane on the connecting shaft (11) and pushes away
Power roller bearing (10), plane thrust roller bearing (10) one end are put down by the annular projection limit formed on connecting shaft (11)
Thrust roller bearing (10) other end in face passes through the baffle limiting of outer tube (16) shaft end, and connecting shaft (11) stretches out outer tube (16) baffle
The outside diameter of axle on be arranged plane needle roller thrust bearing (9), plane needle roller thrust bearing (9) one end is another by baffle limiting
End is limited by the half-round clamping ring (8) being arranged on connecting shaft (11).
6. folding electric jack as claimed in claim 5, it is characterised in that: the connecting shaft (11) is equipped with card slot, card
The half-round clamping ring (8) of two pairings is set in slot.
7. folding electric jack as claimed in claim 5, it is characterised in that: outer tube is stretched out in said inner tube (17) outer end
(16), inner tube (17) stretches out the shaft shoulder that the shaft shoulder that outer tube (16) part is formed is tube assembly, and sliding sleeve (15) is sheathed on outer tube (16)
On, it is arranged on sliding sleeve (15) sheath (18), the both ends of sheath (18) are respectively arranged with hose clamp (19).
8. folding electric jack as described in claim 1, it is characterised in that: the jack body assembly (26) is by turning
Axis (23) and fixed bracket (6) rotation connection.
9. folding electric jack as described in claim 1, it is characterised in that: the connecting rod (21) passes through pin shaft (24) and solid
Fixed rack (6) rotation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821453615.XU CN208747538U (en) | 2018-09-05 | 2018-09-05 | Folding electric jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821453615.XU CN208747538U (en) | 2018-09-05 | 2018-09-05 | Folding electric jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208747538U true CN208747538U (en) | 2019-04-16 |
Family
ID=66082936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821453615.XU Active CN208747538U (en) | 2018-09-05 | 2018-09-05 | Folding electric jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208747538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821169A (en) * | 2018-09-05 | 2018-11-16 | 无锡康泰电子有限公司 | Folding electric jack |
-
2018
- 2018-09-05 CN CN201821453615.XU patent/CN208747538U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821169A (en) * | 2018-09-05 | 2018-11-16 | 无锡康泰电子有限公司 | Folding electric jack |
| CN108821169B (en) * | 2018-09-05 | 2024-05-10 | 无锡康泰电子有限公司 | Folding electric jack |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |