CN208732500U - A kind of double nut anti-slip thread jack - Google Patents
A kind of double nut anti-slip thread jack Download PDFInfo
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- CN208732500U CN208732500U CN201820933059.XU CN201820933059U CN208732500U CN 208732500 U CN208732500 U CN 208732500U CN 201820933059 U CN201820933059 U CN 201820933059U CN 208732500 U CN208732500 U CN 208732500U
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- 229910000831 Steel Inorganic materials 0.000 claims description 20
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- 241001347978 Major minor Species 0.000 description 6
- 230000002045 lasting effect Effects 0.000 description 6
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Abstract
The utility model discloses a kind of double nut anti-slip thread jack, belong to lifting or load-bearing technical field.The utility model includes screw rod, upper scissors rod, lifting seat, lower scissors rod, pedestal and screw rod fixing seat, further includes double nut anti-slip thread mechanism, in which: above scissors rod and lower scissors rod are symmetrical 2；One end of upper scissors rod I and upper scissors rod II passes through the two sides that swivel pin is symmetrically articulated with lifting seat；One end of lower scissors rod I and lower scissors rod 2 II passes through swivel pin and is symmetrically articulated on pedestal；The other end of upper scissors rod II and lower scissors rod 2 II passes through shaft and is articulated in screw rod fixing seat；The other end of upper scissors rod I and lower scissors rod I passes through shaft and is articulated with double nut anti-slip thread mechanism, and screw rod is horizontally through shaft and double nut anti-slip thread mechanism, and is spirally connected with shaft and double nut anti-slip thread mechanism.Solve the problems, such as the screw body in jack on vehicle there are problems that load-bearing nut there is stripped thread and cannot continuous load-bearing.
Description
Technical field
The utility model relates to lifting or bearing equipment technical fields, specifically, being related to a kind of double nut anti-slip thread thousand
Jin top.
Background technique
Jack be it is a kind of use rigidity top lift part as equipment, pushed up in stroke by top bracket or bottom claw
Rise the light and small lifting equipment of weight.Rack-jack, screw jack and 3 kinds of hydraulic jack can be divided by structure feature.Thousand
Jin top is a kind of simplest lifting equipment of lifting height small (being less than 1m).It has mechanical and two kinds of fluid pressure type.Mechanically
Jack has rack-and-pinion and spiral two kinds again, and since lifting capacity is small, operation is laborious, is normally only used for flight-line maintenance work.Liquid
Pressure type jack structure is compact, stable working, there is self-locking, therefore uses extensive.
Currently, with the extensive use of automobile, jack tire patching is assisted with it, changes the function of tire and by favor.It is very heavy
Top is the equipment for lifting heavy, and has the performance that is be easily moved and operates, thus jack be widely used in it is different
Industry, especially vehicle maintenance.Therefore, almost each automobile equipped with jack.
Screw rod in jack on vehicle is the basic transmission mechanism of conventional machinery equipment, and load-bearing nut moves on screw rod
When, when due to long-term, overload operation or defective in quality product, often there is stripped thread problem in load-bearing nut, causes entire machine
Tool or equipment downtime and cannot continuous load-bearing even result in or cause safety accident sometimes.
Through retrieving, Chinese patent publication No. CN103993731B, publication date 2015.12.09, a kind of denomination of invention: screw rod
Nut type building scaffold anti-fall device, including screw rod, nut, fall prevention frame and spring, the interior setting nut of the fall prevention frame are described
Spring is arranged in nut top, and the screw rod runs through fall prevention frame, nut and spring, and tooth form groove, institute is arranged in the nut upper surface
State the upper plate inner surface setting tooth form boss of fall prevention frame；It can be in fall prevention frame using the nut and screw rod of larger lead angle
The voluntarily lifting of nut is kept in lifting speed appropriate, and avoids locking, when the rate of climb is more than that nut institute is attainable
After maximal velocity, nut will limit scaffold rising, and after decrease speed reaches the safety value of nut setting, nut is then pressed
Contracting spring so that the tooth form groove of nut upper surface is matched with the tooth form boss of fall prevention frame upper plate inner wall, and then is realized anti-fall
Frame is locked, and scaffold is prevented to fall；The invention needs major thread lift angle, in addition, it is desirable to which fall prevention frame structure, is suitable for installation space
Big building field, versatility are poor.
Utility model content
1. utility model technical problems to be solved
To overcome the problems, such as that the screw body in the prior art jack on vehicle stripped thread occurs there are load-bearing nut and cannot connect
The problem of continuous load-bearing, the utility model provides a kind of double nut anti-slip thread jack.The utility model passes through the setting of secondary nut,
When occurring stripped thread failure between main nut and screw rod, after main nut forced-slip, one, secondary nut can be overlapped with secondary nut
Load-bearing is simultaneously mobile simultaneously, to achieve the purpose that continuous load-bearing.
2. technical solution
To solve the above problems, the utility model adopts the following technical solution:
A kind of double nut anti-slip thread jack, including screw rod, upper scissors rod, lifting seat, lower scissors rod, pedestal and screw rod are solid
Reservation further includes double nut anti-slip thread mechanism, in which: the upper scissors rod and lower scissors rod are symmetrical 2, respectively
For upper scissors rod I, upper scissors rod II and lower scissors rod I, lower scissors rod 2 II；The one of the upper scissors rod I and upper scissors rod II
End is symmetrically articulated with the two sides of lifting seat by swivel pin；One end of the lower scissors rod I and lower scissors rod 2 II passes through
Swivel pin is symmetrically articulated on pedestal；The other end of the upper scissors rod II and lower scissors rod 2 II passes through shaft and is articulated with silk
In bar fixing seat；The other end of the upper scissors rod I and lower scissors rod I passes through shaft and is articulated with double nut anti-slip thread mechanism,
The screw rod is horizontally through shaft and double nut anti-slip thread mechanism, and is spirally connected with shaft and double nut anti-slip thread mechanism, double nut
Anti-slip thread mechanism includes screw rod and the main nut being socketed on screw rod and secondary nut, and the main nut is load-bearing nut, upper scissor
Bar I and lower scissors rod I are articulated on main nut, and preset clearance between main nut tail end and secondary nut avoids incipient stage pair spiral shell
Female load-bearing；When stripped thread failure between main nut and screw rod, one, and same time shift are overlapped after the main nut and secondary nut stress
Dynamic, which can be additional thrust, can apply to main nut or secondary nut, can also rotate inward secondary nut and main nut
Load-bearing role transfer is realized in engagement, secondary nut load-bearing, and the two is mobile simultaneously.
Symmetrical card convex is arranged in the tail end of further embodiment, main nut, can be one or more, the head of the pair nut
The card slot and chuck that end setting and card convex are correspondingly arranged are realized mobile while main nut and secondary nut after the two engagement.
Further scheme is provided with sliding equipment in the end of chuck and/or card slot, can be steel ball, lubrication stone
Ink pad piece etc., it is stuck when to avoid main nut and secondary nut role transfer.
Further scheme, sliding equipment include the steel ball in the circular trough and circular trough of the end of chuck, the steel
The diameter of pearl is slightly larger than circular trough, and steel ball plays effective supporting role to the main nut of damage, moreover, load-bearing capacity Qiang Bingke
It rolls and main nut is driven mutually to slide with secondary nut, occur after preventing main nut from directly contacting with secondary nut stuck.
Further scheme, card convex, card slot and chuck are arc-shaped, be it is two or more, corresponding circular trough and
Steel ball be also it is two or more, more, the engagement capability of the two is stronger, is less susceptible to stuck.
Further scheme further includes support base；The upper surface of the lifting seat is fixed with rotating dog, the support base
It is socketed on rotating dog, forms rotatable support base, the direction of support base is adjusted according to different weights.
Further scheme is also socketed with bearing assembly on the screw rod of the front end of screw rod fixing seat, avoids stuck screw rod
Rotation；Revolving part is reserved in the front end of the screw rod, and convenient wrench exerts a force up and down.
The upper surface setting of further scheme, rotatable support base is fluted, can play the effect of positioning；The pair
Nut be it is two or more, tail end is identical with the end construction of the main nut, can theoretically be continued for load-bearing, only need
It successively to realize that master-pair, major-minor-pair, major-minor are secondary-secondary, major-minor is secondary-secondary ... and wait the transfer of roles.
A kind of operating method of double nut anti-slip thread jack, step are as follows:
Step 1: lifting seat load-bearing: lifting seat pushes against the bottom of weight, keeps the uniform weight bearing situations of jack entirety；
Step 2: main nut load-bearing: it is covered on revolving part with spanner, continuous applying force revolving part drives screw rod persistently to rotate,
By rotary screw, main nut load-bearing, main nut drives secondary nut to move together to perpendicular to force direction, and then holds to weight
It is continuous to press closer；
Step 3: secondary nut load-bearing: when stripped thread failure occurs in main nut, applying external force in main nut or secondary nut, card convex
It is engaged with card slot, with the lasting rotation of screw rod, main nut and secondary nut agree with, and secondary nut starts load-bearing, drives main nut one
It rises to the direction movement perpendicular to force, until opening or jacking up weight.
It is easy to operate, wide application.
3. beneficial effect
Compared with prior art, the utility model has the following obvious advantages:
(1) the double nut anti-slip thread jack of the utility model, is skillfully constructed, without outer between main nut and anti-fall nut
Add object to fix, driven by screw thread and the object that agrees between the two, main nut is realized with secondary nut overlap joint and moved simultaneously, main nut
The transfer that can realize load-bearing when stripped thread failure with secondary nut again, is not necessarily to shutdown maintenance, and then achieve the purpose that lasting load-bearing；
(2) the double nut anti-slip thread jack of the utility model, main nut and secondary nut preset clearance, avoid the two simultaneously
Load-bearing and may damage simultaneously；
(3) the double nut anti-slip thread jack of the utility model, card convex, card slot and chuck play the purpose of overlap joint engagement,
And then it realizes mobile while main nut and secondary nut；
(4) the double nut anti-slip thread jack of the utility model, sliding equipment such as steel ball, lubricating graphite gasket can be achieved
Avoid stuck purpose；
(5) the double nut anti-slip thread jack of the utility model, compared to the lubricating graphite gasket for walking lubricating action merely,
Steel ball in circular trough and circular trough, moreover it is possible to play the role of support, buffering load-bearing, and then realize role be transferred into it is steady into
Row；After main nut damage, main nut is fallen on secondary nut, and by the support of steel ball, main nut will appear the idle running of certain angle,
Then it is operated after agreeing with secondary nut with secondary nut；
(6) the double nut anti-slip thread jack of the utility model, two or more card convexs, card slot, chuck circular trough and steel
Pearl, more, the engagement capability of the two is stronger, is less susceptible to stuck；
(7) the double nut anti-slip thread jack of the utility model, secondary nut can continuously be arranged, can theoretically be continued for
Load-bearing, it is only necessary to successively realize that master-pair, major-minor-pair, major-minor are secondary-secondary, major-minor is secondary-secondary ... and wait the transfer of roles；
(8) operating method of the utility model realizes the process of main nut and secondary nut role transfer, easy to operate,
Wide application can continue production free of discontinuities, production efficiency and high degree of automation.
Detailed description of the invention
Fig. 1 is the double nut anti-slip thread jack structure schematic diagram of the utility model；
Fig. 2 is structural schematic diagram after the part A amplification in Fig. 1；
Fig. 3 is the main nut side view in the utility model；
Fig. 4 is the main nut sectional view in the utility model；
Fig. 5 is the main nut bottom view in the utility model；
Fig. 6 is the main nut perspective view in the utility model；
Fig. 7 is the secondary nut side view in the utility model；
Fig. 8 is the secondary nut top view in the utility model；
Fig. 9 is the secondary nut sectional view in the utility model；
Figure 10 is the secondary nut perspective view in the utility model；
Figure 11 is the secondary nut side view of embodiment 6 to 7 in the utility model.
In figure: 1. screw rods；2. main nut；3. steel ball；4. secondary nut；Scissors rod on 5.；6. support base；7. rotating dog；8.
Swivel pin；9. circlip；10. lifting seat；11. lower scissors rod；12. screw rod fixing seat；13. bearing assembly；14. pedestal；15. rotation
Part；16. shaft；22. card convex；41. card slot；42. chuck；Scissors rod I on 51.；Scissors rod II on 52.；61. groove；Under 111.
Scissors rod I；112. lower scissors rod 2 II.
Specific embodiment
For the content for further appreciating that the utility model, this utility model is described in detail in conjunction with attached drawing.
Embodiment 1
The double nut anti-slip thread jack of the present embodiment, as shown in Figure 1, 2, including screw rod 1, upper scissors rod 5, lifting seat
10, lower scissors rod 11, pedestal 14 and screw rod fixing seat 12 further include double nut anti-slip thread mechanism, in which: the upper scissors rod 5
Be symmetrical 2 with lower scissors rod 11, respectively upper scissors rod I 51, upper scissors rod II 52 and lower scissors rod I 111, under
Scissors rod 2 II 112；One end of the upper scissors rod I 51 and upper scissors rod II 52 passes through swivel pin 8 and is symmetrically articulated with lifting
The two sides of seat 10；One end of the lower scissors rod I 111 and lower scissors rod 2 II 112 passes through swivel pin 8 and is symmetrically articulated with pedestal
On 14；The other end of the upper scissors rod II 52 and lower scissors rod 2 II 112 passes through shaft 16 and is articulated with screw rod fixing seat 12
On；The other end of the upper scissors rod I 51 and lower scissors rod I 111 passes through shaft 16 and is articulated with double nut anti-slip thread mechanism, institute
It states screw rod 1 and is horizontally through shaft 16 and double nut anti-slip thread mechanism, and be spirally connected with shaft 16 and double nut anti-slip thread mechanism, double spiral shells
Female anti-slip thread mechanism includes screw rod 1 and the main nut 2 being socketed on screw rod 1 and secondary nut 4, and the main nut 2 is load-bearing spiral shell
Mother, upper scissors rod I 51 and lower scissors rod I 111 are articulated on main nut 2, between reserving between 2 tail end of main nut and secondary nut 4
Gap avoids 4 load-bearing of incipient stage pair nut；When stripped thread failure between main nut 2 and screw rod 1, the main nut 2 and secondary nut
One is overlapped after 4 stress, and is moved simultaneously, which can be additional thrust, it can apply to main nut 2 or secondary nut 4,
Secondary nut 4 can also be rotated inward and main nut 2 engages, secondary 4 load-bearing of nut, realize load-bearing role transfer, secondary nut 4 drives master
Nut 2, the two are mobile simultaneously.
Embodiment 2
The double nut anti-slip thread jack of the present embodiment, basic structure are theed improvement is that with embodiment 1: main nut 2
Symmetrical card convex 22 is arranged in tail end, and card convex 22 can be one or more, is 2 in the present embodiment as shown in Fig. 1,3,4,5,6,
As shown in Fig. 1,7,8,9,10, the card slot 41 and chuck 42 that the head end setting of the pair nut 4 is correspondingly arranged with card convex 22, also
It is 2, realizes mobile while main nut 2 and secondary nut 4.Before stripped thread failure between main nut 2 and screw rod 1,22 He of card convex
Chuck 42 overlaps after slightly contacting, and main nut 2 can be realized and drive secondary nut 4 mobile with screw rod 1；When main nut 2
It between screw rod 1 after stripped thread failure, exerts a force to main nut 2 or secondary nut 4, rotates inward secondary nut 4 and main nut 2 engages, it is main
Nut 2 dallies after certain angle, and card convex 22 and chuck 42 completely attach to one, realizes that secondary nut 4 drives main nut 2 with screw rod
1 is mobile, and then realizes the transfer of load-bearing role, and what is be achieved that does not stop and the load-bearing that persistently exerts a force yet.
Embodiment 3
The double nut anti-slip thread jack of the present embodiment, basic structure are theed improvement is that with embodiment 3: chuck 42
It is provided with sliding equipment in end and/or card slot 41, can be steel ball, lubricating graphite gasket etc., is lubrication stone in the present embodiment
Setting in ink pad piece, the end of chuck 42 and card slot 41, card convex 22 is blocked when can shift to avoid main nut 2 and secondary 4 role of nut
It dies of in card slot 41；The end of card convex 22 preset clearance 2mm between card slot 41.On the screw rod 1 of the front end of screw rod fixing seat 12
It is also socketed with bearing assembly 13, avoids the rotation of stuck screw rod 1；Reserve revolving part 15, convenient wrench in the front end of the screw rod 1
Force up and down.
The operating method of the present embodiment double nut anti-slip thread jack, step are as follows:
Step 1: lifting seat load-bearing: lifting seat 10 pushes against the bottom of weight, keeps the uniform load-bearing shape of jack entirety
State；
Step 2: main nut load-bearing: being covered on revolving part 15 with spanner, continuous applying force revolving part 15 drives screw rod 1 to continue
Rotation, by rotary screw 1,2 load-bearing of main nut, main nut 2 drives secondary nut 4 to move together to perpendicular to force direction, into
And weight is persistently pressed closer；
Step 3: secondary nut load-bearing: when stripped thread failure occurs in main nut 2, applying external force in main nut 2 or secondary nut 4, card
Convex 22 and card slot 41 engage, with the lasting rotation of screw rod 1, main nut 2 and secondary nut 4 agree with, and secondary nut 4 starts load-bearing, band
Dynamic main nut 2 is mobile to the direction perpendicular to force together, until opening or jacking up weight.
The present embodiment double nut anti-slip thread jack, realizes the process of main nut 2 and secondary 4 role of nut transfer, and has
Effect avoids weight and falls because of stripped thread, and screw rod 1 is sustainable to drive different weights to realize lifting, easy to operate, wide application.
Embodiment 4
The double nut anti-slip thread jack of the present embodiment, basic structure with embodiment 3, improve and the difference is that: card
Convex 22 end preset clearance 3mm between card slot 41；The height of card convex 22 and chuck 42 is 2cm；Sliding equipment includes chuck
Steel ball 3 in the circular trough and circular trough of 42 end, the diameter of the steel ball 3 are slightly larger than circular trough, the master of 3 pairs of steel ball damages
Nut 2 plays effective supporting role, moreover, load-bearing capacity is strong and can roll drive main nut 2 and the mutually sliding of secondary nut 4,
Sliding is improved to roll, it is significantly more efficient prevent main nut 2 from directly contacting with secondary nut 4 after occur it is stuck.
The operating method of the present embodiment double nut anti-slip thread jack, step are as follows:
Step 1: lifting seat load-bearing: lifting seat 10 pushes against the bottom of weight, keeps the uniform load-bearing shape of jack entirety
State；
Step 2: main nut load-bearing: being covered on revolving part 15 with spanner, continuous applying force revolving part 15 drives screw rod 1 to continue
Rotation, by rotary screw 1,2 load-bearing of main nut, main nut 2 drives secondary nut 4 to move together to perpendicular to force direction, into
And weight is persistently pressed closer；
Step 3: secondary nut load-bearing: when stripped thread failure occurs in main nut 2, applying external force in main nut 2 or secondary nut 4, card
Convex 22 and card slot 41 engage, with the lasting rotation of screw rod 1, main nut 2 first dallies, after main nut 2 and secondary nut 4 agree with, knot
Beam idle running, secondary nut 4 start load-bearing, and the main nut 2 of 3 pairs of steel ball damages plays effective supporting role, moreover, load-bearing capacity is strong
And can roll and drive main nut 2 and the mutually sliding of secondary nut 4, sliding is improved to roll, drives main nut 2 together to vertical
It is mobile in the direction of force, until opening or jacking up weight.
Embodiment 5
The double nut anti-slip thread jack of the present embodiment, basic structure with embodiment 4, improve and the difference is that: also
Including support base 6；The upper surface of the lifting seat is fixed with rotating dog 7, and the support base 6 is socketed on rotating dog 7, and formation can
Rotary support seat adjusts the direction of support base 6 according to different weights, and the top of rotating dog 7 can be socketed circlip 9, avoid to revolve
Turn support base and is detached from lifting seat 10.As shown in figs. 5 and 8, card convex 22, card slot 41 and chuck 42 are arc-shaped, and radian is 60 ° equal
To be two or more, it is 2 in the present embodiment that corresponding circular trough and steel ball 3, which are also two or more,.
In the step of operating method of the present embodiment double nut anti-slip thread jack three: the angle that main nut 2 dallies is
60°。
Embodiment 6
The double nut anti-slip thread jack of the present embodiment, basic structure with embodiment 5, improve and the difference is that: card
Convex 22 end preset clearance 5mm between card slot 41；The height of card convex 22 and chuck 42 is 2cm；Secondary nut 4 be two or
Multiple, the present embodiment is 2, and as shown in figure 11, tail end is identical with the end construction of the main nut 2 to be also equipped with chuck
42, the chuck 42 at secondary 4 both ends of nut is staggered；Chuck 42 and 22 quantity of card convex are 3, and radian is 30 °.
The operating method of the present embodiment double nut anti-slip thread jack, step are as follows:
Step 1: lifting seat load-bearing: lifting seat 10 pushes against the bottom of weight, keeps the uniform load-bearing shape of jack entirety
State；
Step 2: main nut load-bearing: being covered on revolving part 15 with spanner, continuous applying force revolving part 15 drives screw rod 1 to continue
Rotation, by rotary screw 1,2 load-bearing of main nut, main nut 2 drives secondary nut 4 to move together to perpendicular to force direction, into
And weight is persistently pressed closer；
Step 3: secondary nut load-bearing: when stripped thread failure occurs in main nut 2, applying external force in main nut 2 or secondary nut 4, card
Convex 22 and card slot 41 engage, with the lasting rotation of screw rod 1, main nut 2 dallies after 60 °, and main nut 2 and secondary nut 4 agree with,
Terminate idle running, secondary nut 4 starts load-bearing, and the main nut 2 of 3 pairs of steel ball damages plays effective supporting role, moreover, load-bearing capacity
Qiang Bingke, which is rolled, drives main nut 2 and the secondary mutually sliding of nut 4, and sliding is improved to roll, drives main nut 2 together to vertical
It is directly mobile in the direction of force.
Step 4: the second secondary nut load-bearing: when stripped thread failure occur in main nut 2 and first secondary nut 4, applying external force
In main nut 2 or first secondary nut 4, card convex 22 and card slot 41 are engaged, with the lasting rotation of screw rod 1, main nut 2 and first
After 60 ° of idle running of a pair nut 4, first secondary nut 4 and second secondary nut 4 agree with, and terminate idle running, and second pair nut 4 is opened
Beginning load-bearing drives first secondary nut 4 and main nut 2 mobile to the direction perpendicular to force together, can if weight is automobile
Automobile is continued to jack up vertically upward.
Embodiment 7
The double nut anti-slip thread jack of the present embodiment, basic structure are theed improvement is that with embodiment 6: secondary nut 4 is
Multiple, i.e., 3 or more, as shown in figure 11, tail end is identical with the end construction of the main nut 2 to be also equipped with chuck 42, pair
The chuck 42 at 4 both ends of nut is staggered；Chuck 42 and 22 quantity of card convex are 3, and radian is 15 °.
The double nut anti-slip thread jack of the present embodiment, can theoretically be continued for load-bearing, it is only necessary to successively realize master-
Pair, major-minor-pair, major-minor are secondary-secondary, major-minor is secondary-secondary ... waits the transfer of roles.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without departing from the spirit of the invention, not inventively design with should
The similar frame mode of technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (8)
1. a kind of double nut anti-slip thread jack, including screw rod (1), upper scissors rod (5), lifting seat (10), lower scissors rod (11),
Pedestal (14) and screw rod fixing seat (12), which is characterized in that further include double nut anti-slip thread mechanism, in which:
The upper scissors rod (5) and lower scissors rod (11) are symmetrical 2, respectively upper scissors rod I (51), upper scissor
Bar II (52) and lower scissors rod I (111), lower scissors rod 2 II (112)；The upper scissors rod I (51) and upper scissors rod II (52)
One end pass through the two sides that swivel pin (8) is symmetrically articulated with lifting seat (10)；The lower scissors rod I (111) and lower scissors rod
One end of 2 II (112) passes through swivel pin (8) and is symmetrically articulated on pedestal (14)；The upper scissors rod II (52) and lower scissor
The other end of bar 2 II (112) passes through shaft (16) and is articulated on screw rod fixing seat (12)；The upper scissors rod I (51) and under
The other end of scissors rod I (111) passes through shaft (16) and is articulated with double nut anti-slip thread mechanism, and the screw rod (1) is horizontally through
Shaft (16) and double nut anti-slip thread mechanism, and be spirally connected with shaft (16) and double nut anti-slip thread mechanism；The double nut is anti-skidding
Silk mechanism includes screw rod (1) and the main nut (2) being socketed on screw rod (1) and secondary nut (4), and the main nut (2) is load-bearing
Nut, the upper scissors rod I (51) and lower scissors rod I (111) are articulated on main nut (2), main nut (2) tail end and secondary nut
(4) preset clearance between；When stripped thread failure between main nut (2) and screw rod (1), the main nut (2) and secondary nut (4) by
One is overlapped after power, and is moved simultaneously.
2. double nut anti-slip thread jack as described in claim 1, which is characterized in that the tail end of the main nut (2) is arranged
Symmetrical card convex (22), the card slot (41) and chuck (42) that the head end setting of the pair nut (4) is correspondingly arranged with card convex (22).
3. double nut anti-slip thread jack as claimed in claim 2, which is characterized in that the end of the chuck (42) and/or
Sliding equipment is provided in card slot (41).
4. a kind of double nut anti-slip thread jack as claimed in claim 3, which is characterized in that the sliding equipment includes chuck
(42) diameter of the steel ball (3) in the circular trough and circular trough of end, the steel ball (3) is slightly larger than circular trough.
5. a kind of double nut anti-slip thread jack as claimed in claim 4, which is characterized in that the card convex (22), card slot
(41) and chuck (42) is arc-shaped, be it is two or more, corresponding circular trough and steel ball (3) are also two or more.
6. a kind of double nut anti-slip thread jack as claimed in claim 5, which is characterized in that further include support base (6)；It is described
The upper surface of lifting seat (10) is fixed with rotating dog (7), and the support base (6) is socketed on rotating dog (7), forms rotatable branch
Support seat.
7. a kind of double nut anti-slip thread jack as claimed in claim 5, which is characterized in that the screw rod fixing seat (12)
Bearing assembly (13) are also socketed on the screw rod (1) of front end；Reserve revolving part (15) in the front end of the screw rod (1).
8. a kind of double nut anti-slip thread jack as claimed in claim 6, which is characterized in that
Fluted (61) are arranged in the upper surface of the rotatable support base；
It is described pair nut (4) be it is two or more, tail end is identical with the end construction of the main nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820933059.XU CN208732500U (en) | 2018-06-15 | 2018-06-15 | A kind of double nut anti-slip thread jack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820933059.XU CN208732500U (en) | 2018-06-15 | 2018-06-15 | A kind of double nut anti-slip thread jack |
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| Publication Number | Publication Date |
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| CN208732500U true CN208732500U (en) | 2019-04-12 |
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| CN201820933059.XU Expired - Fee Related CN208732500U (en) | 2018-06-15 | 2018-06-15 | A kind of double nut anti-slip thread jack |
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| CN (1) | CN208732500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584759A (en) * | 2018-06-15 | 2018-09-28 | 安徽世界村新材料有限公司 | A kind of double nut anti-slip thread jack and its operating method |
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2018
- 2018-06-15 CN CN201820933059.XU patent/CN208732500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584759A (en) * | 2018-06-15 | 2018-09-28 | 安徽世界村新材料有限公司 | A kind of double nut anti-slip thread jack and its operating method |
| CN108584759B (en) * | 2018-06-15 | 2023-10-27 | 国网浙江省电力有限公司龙游县供电公司 | Double-nut anti-skid jack and operation method thereof |
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| GR01 | Patent grant | ||
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| 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: 20190412 |