CN117246919A - Self-folding device and method for rocker arm landing pole anti-rocker arm based on combined spring - Google Patents
Self-folding device and method for rocker arm landing pole anti-rocker arm based on combined spring Download PDFInfo
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- CN117246919A CN117246919A CN202311436418.2A CN202311436418A CN117246919A CN 117246919 A CN117246919 A CN 117246919A CN 202311436418 A CN202311436418 A CN 202311436418A CN 117246919 A CN117246919 A CN 117246919A
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- Prior art keywords
- rocker arm
- spring
- plate
- supporting
- self
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention belongs to the field of transmission line iron tower assembly construction, and discloses a device and a method for preventing rocker arm self-furling of a rocker arm falling to the ground and holding pole based on a combined spring, wherein the device comprises the following steps: the device comprises a loading module, a transmission module and an installation module; the loading module comprises: a support rod and a push rod; the transmission module includes: a push rod pressing plate and a combined spring; the mounting module includes: a support front plate, a support rear plate and an inner spring guide rod; the supporting rod is fixedly connected with one ends of a plurality of push rods, and the other ends of the push rods are fixed on the push rod pressing plate; one end of each of the plurality of inner spring guide rods is fixed on the supporting front plate, and the other end is fixed on the supporting rear plate; a combined spring is sleeved on the periphery of the part of each spring guide rod, which is positioned between the push rod pressing plate and the supporting rear plate. The invention has simple structure and is convenient to process and install; the problem of falling to the ground and holding pole rocking arm draws in auto-lock and exhibition and put the difficulty is solved, double rocking arm falls to the ground and holds pole group tower efficiency of construction has been improved.
Description
Technical Field
The invention belongs to the field of transmission line iron tower assembly construction, and particularly relates to a device and a method for preventing rocker arm self-furling of a rocker arm falling to the ground and holding pole based on a combined spring.
Background
The assembly of the transmission line iron tower is an important link with large engineering quantity, high construction difficulty and multiple technical links in the construction of the power grid. The rocker arm floor pole can realize double-side simultaneous lifting work relative to the inner suspension pole, the construction efficiency is high, and the rocker arm pole upright post is directly supported on the ground, so that the structural stability and the safety are good, and the rocker arm floor pole is one of common and important construction equipment for the current tower assembly construction.
The basic structure of the existing rocker arm floor-type holding pole comprises: the variable amplitude steel wire rope, the mast, the rocker arm, the rod body and the like, and the rocker arm realizes variable amplitude through the movement of the variable amplitude steel wire rope. When the rocker arm falls to the ground and the pole body reaches a certain height, the length of the amplitude-variable steel wire rope is increased, so that the dead weight of the rocker arm is increased, and when the angle between the rocker arm and the mast is smaller, the rocker arm can be folded and self-locked due to the action of traction force of the amplitude-variable steel wire rope and wind load on the rocker arm. At present, a folding-preventing self-locking device is not installed on the rocker arm holding pole, and a manual or twisting mode is generally adopted for dragging below. From a review, zhang Weimin et al have designed a dual rocker arm, anti-toppling jack, but not to the desired effect.
At present, a mode of manual or twisting and grinding to drag below is adopted to have potential safety hazards, so that safety accidents are easy to occur. Zhang Weimin and the like, the double-rocker-arm pole-holding rocker-arm anti-overturning top support is arranged at the top of the rod body, the spring elongation is small, the stroke is short, the spring force of the scheme is small, and the rocker arm is difficult to be sprung off smoothly. In addition, the friction force of the pushing plate on the rocker arm is large, the main material of the rocker arm is easy to damage, and the device cannot be popularized and applied due to the defects.
Some manufacturers have developed related device design work, but do not develop detailed theoretical research, and the problem of rocker arm furling and self-locking is not solved effectively.
Disclosure of Invention
The invention aims to provide a device and a method for preventing a rocker arm from self-furling of a rocker arm floor type holding pole based on a combined spring, so as to solve the furling self-locking problem caused by the increase of the dead weight of a variable-amplitude steel wire rope when the rocker arm floor type holding pole body reaches a certain height.
In order to solve the technical problems, the invention adopts the following technical scheme:
in a first aspect, the invention provides a rocker arm falling to the ground and holding a pole and preventing a rocker arm from self-collapsing device based on a combined spring, comprising: the device comprises a loading module, a transmission module and an installation module;
the loading module comprises: a support rod and a push rod;
the transmission module includes: a push rod pressing plate and a combined spring;
the mounting module includes: a support front plate, a support rear plate and an inner spring guide rod;
the supporting rod is fixedly connected with one ends of a plurality of push rods, and the other ends of the push rods are fixed on the push rod pressing plate; one end of each of the plurality of inner spring guide rods is fixed on the supporting front plate, and the other end is fixed on the supporting rear plate; a combined spring is sleeved on the periphery of the part of each spring guide rod, which is positioned between the push rod pressing plate and the supporting rear plate.
The invention is further improved in that: a plurality of bushings are fixedly arranged on the push rod pressing plate; a plurality of inner spring guide rods pass through the corresponding bushings.
The invention is further improved in that: the combined spring comprises an inner spring sleeved on the periphery of the inner spring guide rod and an outer spring sleeved on the periphery of the inner spring.
The invention is further improved in that: the outer spring inner ring is in clearance fit with the bushing outer ring, and the inner spring inner ring is in transition fit with the inner spring guide rod outer ring.
The invention is further improved in that: an outer spring clamping block is arranged on the supporting rear plate.
The invention is further improved in that: the support rod comprises a first steel pipe;
two connecting lug plates are fixed in the middle of the first steel pipe, and rib plates are also fixed between the connecting lug plates and the side walls of the first steel pipe; two mounting holes are formed in each connecting lug plate, and each rib plate is provided with one mounting hole, and six mounting holes are used for mounting six corresponding push rods.
The invention is further improved in that: the push rod comprises an ear plate, a second steel pipe and a joint; the ear plate is fixed at one end of the second steel pipe and forms an L shape together with the second steel pipe; the other end of the second steel pipe is a joint; the joint is fixed on the push rod pressing plate.
The invention is further improved in that: two ends of the first steel pipe are fixed with a steel plate; a blocking sleeve is respectively arranged on two sides of the first steel pipe, and a second short shaft sleeve, a long shaft sleeve and a first short shaft sleeve are sequentially arranged between the blocking sleeve and the corresponding steel plate.
The invention is further improved in that: one or two of the front support plate and the rear support plate are fixedly connected with a main material of the uppermost mast standard section in the rocker arm floor type derrick, and the support rods protrude out of the outer wall of the uppermost mast standard section.
In a second aspect, the invention provides a method for preventing a rocker arm from self-collapsing on the basis of a combined spring and a rocker arm falling to the ground and a pole, which comprises the following steps: the rocker arm of the rocker arm falling to the ground hits the supporting rod after being folded, drives the supporting rod and the push rod to press against the push rod pressing plate, so that the combined spring is stressed and compressed, kinetic energy is stored as elastic potential energy, the elastic potential energy is reacted to the rocker arm, the rocker arm rebounds, and the function of preventing the rocker arm from being folded and self-locking is achieved.
Compared with the prior art, the device has the following beneficial effects:
the invention provides a rocker arm falling and holding pole rocker arm self-folding prevention device and method based on a combined spring, wherein the device comprises the following components: the device comprises a loading module, a transmission module and an installation module; the loading module comprises: a support rod and a push rod; the transmission module includes: a push rod pressing plate and a combined spring; the mounting module includes: a support front plate, a support rear plate and an inner spring guide rod; the supporting rod is fixedly connected with one ends of a plurality of push rods, and the other ends of the push rods are fixed on the push rod pressing plate; one end of each of the plurality of inner spring guide rods is fixed on the supporting front plate, and the other end is fixed on the supporting rear plate; a combined spring is sleeved on the periphery of the part of each spring guide rod, which is positioned between the push rod pressing plate and the supporting rear plate. The invention has simple structure and is convenient to process and install.
The invention has good energy storage effect. In the working range of the amplitude variation angle of the rocker arm of 70-87 degrees, the device can utilize the combined spring to compress and store energy to directly bounce the rocker arm, so that the problems of folding self-locking and difficult unfolding of the floor type derrick rocker arm are solved, and the construction efficiency of the double-rocker-arm floor type derrick tower is improved.
The invention can be reused after the holding pole is dismantled, the device is fast and convenient to install, the workload and the labor intensity of constructors are reduced, and the resources and the engineering cost are saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a self-collapsing device for preventing rocker arms;
FIG. 2 is a schematic view of the structure of the support bar;
FIG. 3 is a schematic view of a push rod;
FIG. 4 is a schematic view of a combination spring;
FIG. 5 is a schematic view of the construction of the innerspring guide post;
fig. 6 is a schematic view of the structure of a rocker arm ground boom.
In the figure: 1. a support rod; 2. a push rod; 3. supporting the front plate; 4. a bushing; 5. a push rod pressing plate; 6. an inner spring; 7. an inner spring guide bar; 8. an outer spring; 9. supporting the back plate; 10. an outer spring clamping block; 101. a variable amplitude steel wire rope; 102. a safety rope; 103. mast standard section; 104. hoisting a steel wire rope; 105. a lifting hook; 106. a hanging piece; 107. an inner pull wire; 108. reinforced anti-twisting waist ring; 109. a shaft; 110. a rotary plate; 111. a rocker arm; 112. a mast; 11. a steel plate; 12. a first short sleeve; 121. a second short sleeve; 13. a long shaft sleeve; 14. a blocking sleeve; 15. connecting an ear plate; 16. rib plates; 17. a first steel pipe; 21. ear plates; 22. a second steel pipe; 23. a joint; 71. a first screw plate; 72. a third steel pipe; 73. a second screw plate.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The following detailed description is exemplary and is intended to provide further details of the invention. Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
Example 1
Referring to fig. 1, the invention provides a rocker arm falling to the ground and holding a pole self-furling prevention device based on a combined spring, comprising: loading module, transmission module and installation module.
The loading module comprises a supporting rod 1 and a push rod 2;
the transmission module comprises a bushing 4, a push rod pressing plate 5, an inner spring 6, an outer spring 8 and an outer spring clamping block 10;
the mounting module comprises a supporting front plate 3, an inner spring guide bar 7 and a supporting rear plate 9.
The supporting rod 1 is fixedly connected with one ends of six push rods 2 through bolt connection, and the other ends of the six push rods 2 are fixed on the push rod pressing plate 5 so as to transmit force.
Six bushings 4 are fixedly arranged on the push rod pressing plate 5; six inner spring guide rods 7 are fixed on the supporting front plate 3 at one end and on the supporting rear plate 9 at the other end; six inner spring guide rods 7 pass through the corresponding bushings 4. The outer periphery of the part of each spring guide rod 7 between the push rod pressing plate 5 and the supporting rear plate 9 is sleeved with a combined spring, and the combined spring comprises an inner spring 6 sleeved on the outer periphery of the inner spring guide rod 7 and an outer spring 8 sleeved on the outer periphery of the inner spring 6. The support back plate 9 is provided with an outer spring catch 10. The inner ring of the outer spring 8 is in clearance fit with the outer ring of the bushing 4, the inner ring of the inner spring 6 is in transition fit with the outer ring of the inner spring guide rod 7, and meanwhile, the outer spring clamping block 10 and the inner spring guide rod 7 play a limiting role to prevent the spring from being skewed in the working process.
Referring to fig. 2, the support rod 1 includes a steel plate 11, a first short sleeve 12, a second short sleeve 121, a long sleeve 13, a stopper sleeve 14, a connection lug 15, a rib plate 16, and a first steel pipe 17.
Two ends of the first steel pipe 17 are fixed with a steel plate 11; a blocking sleeve 14 is respectively arranged on two sides of the first steel pipe 17, and a second short shaft sleeve 121, a long shaft sleeve 13 and a first short shaft sleeve 12 are sequentially arranged between the blocking sleeve 14 and the corresponding steel plate 11. Two connecting lug plates 15 are fixed in the middle of the first steel pipe 17, and rib plates 16 are also fixed between the connecting lug plates 15 and the side walls of the first steel pipe 17; two mounting holes are formed in each connecting lug plate 15, and each rib plate 16 is provided with one mounting hole, and six mounting holes are used for mounting six corresponding push rods 2.
Referring to fig. 3, the push rod 2 includes an ear plate 21, a second steel pipe 22, and a joint 23. The ear plate 21 is fixed to one end of the second steel pipe 22, and forms an L shape together with the second steel pipe 22. The other end of the second steel pipe 22 is a joint 23.
Referring to fig. 4, the inner spring 6 and the outer spring 8 form a combined spring.
Referring to fig. 5, the inner spring guide rod 7 includes a first screw plate 71, a third steel pipe 72, and a second screw plate 73; the first screw plate 71 and the second screw plate 73 are fixed to both ends of the third steel pipe 72, respectively. The first screw plate 71 is fixedly connected with the supporting front plate 3, and the second screw plate 73 is fixedly connected with the supporting rear plate 9.
Example 2
Referring to fig. 6, the rocker arm ground-engaging boom includes a luffing wire rope 101, a safety rope 102, a mast standard joint 103, a hoisting wire rope 104, a hook 105, a hanger 106, an inner stay wire 107, a reinforced anti-twist ring 108, a body 109, a swivel 110, a rocker arm 111, and a mast 112.
The top of the shaft 109 is fixedly connected with a mast 112; the lower part of the rod body 109 is connected with a reinforced waist-twisting prevention ring 108, and the reinforced waist-twisting prevention ring 108 is connected with the top of the rod body 109 through an inner stay wire 107. A rotary disc 110 is arranged between the pole body 109 and the mast 112; a plurality of swing arms 111 are connected to the swing plate 110. The hanging hook 105 is hung with a hanging piece 106. The lifting hook 105 is provided with a lifting steel wire rope 104; one end of the hoisting wire 104 is fixed, and the other end is connected to a hoisting winch (not shown) via a swing arm 111. One end of the luffing wire rope 101 is fixed, and the luffing winch (not shown) is connected with the luffing wire rope 101 through the outer end of the rocker 111, the top end of the mast 112 and the interior of the mast 112. The swing arm 111 is connected to the top end of the mast 112 via a safety line 102.
The optimal installation position of the swing arm self-gathering prevention device is selected to be on the uppermost mast standard section 103 of the mast 112 through calculation of the amplitude steel wire rope and wind load, wherein the supporting front plate 3 is fixedly connected with one side main material of the uppermost mast standard section 103 through bolts, and the supporting rear plate 9 is fixedly connected with the other side main material of the uppermost mast standard section 103 through bolts; so that the support bar 1 protrudes beyond the outer wall of the uppermost mast section 103.
The invention provides a rocker arm falling and holding pole self-folding prevention method based on a combined spring, which comprises the following steps: in the working range of the amplitude variation angle of the rocker 111 ranging from 70 degrees to 87 degrees, the rocker 111 is folded and then impacts the supporting rod 1 positioned on the outer wall of the uppermost mast standard section 103, the supporting rod 1 and the push rod 2 are driven to press the push rod pressing plate 5, the combined spring consisting of the inner spring 6 and the outer spring 8 is stressed and compressed, kinetic energy is stored as elastic potential energy, and the elastic potential energy is reacted to the rocker 111 to rebound, so that the function of preventing the rocker from folding and self-locking is achieved, and the falling and holding rod of the rocker is protected from overturning.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (10)
1. Rocker arm is prevented rocking arm from drawing in device in on the ground armful pole based on combination spring, its characterized in that includes: the device comprises a loading module, a transmission module and an installation module;
the loading module comprises: a supporting rod (1) and a pushing rod (2);
the transmission module includes: a push rod pressing plate (5) and a combined spring;
the mounting module includes: a supporting front plate (3), a supporting rear plate (9) and an inner spring guide rod (7);
the supporting rod (1) is fixedly connected with one ends of a plurality of push rods (2), and the other ends of the push rods (2) are fixed on the push rod pressing plate (5); one end of a plurality of inner spring guide rods (7) is fixed on the supporting front plate (3), and the other end is fixed on the supporting rear plate (9); a combined spring is sleeved on the periphery of the part of each spring guide rod (7) between the push rod pressing plate (5) and the supporting rear plate (9).
2. The rocker arm self-furling prevention device based on the combined spring for the floor type derrick of the rocker arm is characterized in that a plurality of bushings (4) are fixedly arranged on a push rod pressing plate (5); a plurality of inner spring guide rods (7) pass through the corresponding bushings (4).
3. The rocker arm self-retracting device based on the combined spring for the floor type holding pole is characterized in that the combined spring comprises an inner spring (6) sleeved on the periphery of an inner spring guide pole (7) and an outer spring (8) sleeved on the periphery of the inner spring (6).
4. The rocker arm self-folding prevention device based on the combined spring for the floor type holding pole is characterized in that an inner ring of an outer spring (8) is in clearance fit with an outer ring of a bushing (4), and an inner ring of an inner spring (6) is in transition fit with an outer ring of an inner spring guide pole (7).
5. The rocker arm self-collapsing prevention device based on the combined spring for the floor-standing pole of the rocker arm, as claimed in claim 1, is characterized in that an outer spring clamping block (10) is arranged on the supporting rear plate (9).
6. The rocker arm self-collapsing prevention device based on the combined spring for the floor-standing pole of the rocker arm according to claim 1, characterized in that the supporting pole (1) comprises a first steel tube (17);
two connecting lug plates (15) are fixed in the middle of the first steel pipe (17), and rib plates (16) are also fixed between the connecting lug plates (15) and the side walls of the first steel pipe (17); two mounting holes are formed in each connecting lug plate (15), and each rib plate (16) is provided with one mounting hole, and six mounting holes are used for mounting six corresponding push rods (2).
7. The rocker arm self-collapsing prevention device based on the combined spring for the floor-standing pole of the rocker arm according to claim 1, characterized in that the push rod (2) comprises an ear plate (21), a second steel tube (22) and a joint (23); the ear plate (21) is fixed at one end of the second steel pipe (22) and forms an L shape together with the second steel pipe (22); the other end of the second steel pipe (22) is a joint (23); the joint (23) is fixed on the push rod pressing plate (5).
8. The rocker arm self-folding prevention device based on the combined spring for the floor type derrick of the rocker arm is characterized in that two ends of a first steel pipe (17) are fixed with a steel plate (11); a retaining sleeve (14) is respectively arranged on two sides of the first steel pipe (17), and a second short shaft sleeve (121), a long shaft sleeve (13) and a first short shaft sleeve (12) are sequentially arranged between the retaining sleeve (14) and the corresponding steel plate (11).
9. The rocker arm falling and holding pole rocker arm self-folding prevention device based on the combined spring according to claim 1 is characterized in that one or two of a supporting front plate (3) and a supporting rear plate (9) are fixedly connected with a main material of an uppermost mast standard section (103) in the rocker arm falling and holding pole, and the supporting pole (1) protrudes out of the outer wall of the uppermost mast standard section (103).
10. The rocker arm falling and holding pole rocker arm self-furling prevention method based on the combined spring is characterized in that the rocker arm falling and holding pole rocker arm self-furling prevention device based on the combined spring is characterized in that the rocker arm falling and holding pole self-furling prevention device based on the combined spring is any one of claims 1 to 9; comprising the following steps:
the rocker arm (111) of the rocker arm falling to the ground is folded and then hits the supporting rod (1), the supporting rod (1) and the push rod (2) are driven to press the push rod pressing plate (5), so that the combined spring is stressed and compressed, kinetic energy is stored as elastic potential energy, the elastic potential energy is reacted to the rocker arm (111), the rocker arm (111) rebounds, and the function of preventing the rocker arm from folding and self-locking is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436418.2A CN117246919B (en) | 2023-10-31 | 2023-10-31 | Device and method for automatically retracting rocker arm based on combined spring for rocker arm landing support rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436418.2A CN117246919B (en) | 2023-10-31 | 2023-10-31 | Device and method for automatically retracting rocker arm based on combined spring for rocker arm landing support rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117246919A true CN117246919A (en) | 2023-12-19 |
| CN117246919B CN117246919B (en) | 2025-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311436418.2A Active CN117246919B (en) | 2023-10-31 | 2023-10-31 | Device and method for automatically retracting rocker arm based on combined spring for rocker arm landing support rod |
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| Country | Link |
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| CN (1) | CN117246919B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201040692Y (en) * | 2007-06-06 | 2008-03-26 | 湖北省输变电工程公司 | Double flat arm base pole |
| CN207699074U (en) * | 2017-11-28 | 2018-08-07 | 浙江省建设机械集团有限公司 | A kind of electric power pole arm support receipts arm thrust brake |
| KR20210049030A (en) * | 2021-01-25 | 2021-05-04 | 연 태 최 | Winch crane with support and buffer and excellent corrosion resistance |
| CN216711447U (en) * | 2021-12-31 | 2022-06-10 | 天津送变电工程有限公司 | Safe buffer positioning device for double-rocker arm holding rod and arm retracting |
| CN220999012U (en) * | 2023-10-31 | 2024-05-24 | 中国电力科学研究院有限公司 | Self-retracting device for rocker arm grounding arm anti-rocker arm based on combined spring |
-
2023
- 2023-10-31 CN CN202311436418.2A patent/CN117246919B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201040692Y (en) * | 2007-06-06 | 2008-03-26 | 湖北省输变电工程公司 | Double flat arm base pole |
| CN207699074U (en) * | 2017-11-28 | 2018-08-07 | 浙江省建设机械集团有限公司 | A kind of electric power pole arm support receipts arm thrust brake |
| KR20210049030A (en) * | 2021-01-25 | 2021-05-04 | 연 태 최 | Winch crane with support and buffer and excellent corrosion resistance |
| CN216711447U (en) * | 2021-12-31 | 2022-06-10 | 天津送变电工程有限公司 | Safe buffer positioning device for double-rocker arm holding rod and arm retracting |
| CN220999012U (en) * | 2023-10-31 | 2024-05-24 | 中国电力科学研究院有限公司 | Self-retracting device for rocker arm grounding arm anti-rocker arm based on combined spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117246919B (en) | 2025-09-02 |
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