CN112610645A - High-precision mechanical spring resisting deformation in non-working direction - Google Patents
High-precision mechanical spring resisting deformation in non-working direction Download PDFInfo
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- CN112610645A CN112610645A CN202011575791.2A CN202011575791A CN112610645A CN 112610645 A CN112610645 A CN 112610645A CN 202011575791 A CN202011575791 A CN 202011575791A CN 112610645 A CN112610645 A CN 112610645A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
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Abstract
The invention discloses a high-precision mechanical spring capable of resisting deformation in a non-working direction, which belongs to the technical field of springs and comprises a spring main body and two deformation-resisting rod pieces, wherein each deformation-resisting rod piece comprises a fixed outer sleeve, and a matched telescopic inner sliding rod is connected in the fixed outer sleeve in a sliding manner. Can realize the setting through anti deformation member, receive under the normal compressed prerequisite of axial pressure ability at the spring main part, can effectually prevent the spring main part because of receiving axial tension tensile deformation, and can effectually prevent the spring main part because of receiving radial effort bending deformation, thereby the anti non-work of spring main part to the ability of deformation has been improved greatly, and then can effectively prolong the life of spring main part, and anti deformation member alternative install in the outside or the inboard of spring main part, can be according to the adjustment that the adaptability was made to the opposition deformation member of use scene, the practicality is greatly improved.
Description
Technical Field
The invention relates to the technical field of springs, in particular to a high-precision mechanical spring capable of resisting non-working deformation.
Background
A spring is a mechanical part that works by elasticity. The part made of elastic material deforms under the action of external force and restores to the original shape after the external force is removed. Also used as a "spring". Typically made of spring steel. The types of springs are complex and various, and mainly include spiral springs, volute springs, plate springs, special springs and the like according to the shapes.
The compression spring is a spiral spring bearing axial pressure, the cross section of the material used by the compression spring is mostly circular, the compression spring is also coiled by rectangle and multi-strand steel, the spring is generally equidistant, and the shape of the compression spring is as follows: the compression spring is cylindrical, conical, convex and concave, and a small number of non-circular shapes, and the like, a certain gap is reserved between the rings of the compression spring, and the compression spring contracts and deforms when subjected to external load, so that deformation energy is stored.
The compression spring is the most widely used one of all the spring types, and can provide a resisting force when being subjected to axial pressure, but the existing compression spring has poor capacity of resisting deformation in a non-working direction, such as being easily stretched and deformed when being subjected to axial tension, and being easily bent and deformed when being subjected to radial acting force, and the deformed compression spring is difficult to restore to the original shape, so that the performance of the spring is deteriorated, even damaged and scrapped. Therefore, we propose a high precision mechanical spring that resists deformation from the non-working direction.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a high-precision mechanical spring capable of resisting deformation in the non-working direction, which can effectively prevent the spring main body from being stretched and deformed due to axial tension on the premise that the spring main body can be normally compressed due to axial pressure through the arrangement of a deformation resisting rod piece, and can effectively prevent the spring main body from being bent and deformed due to radial acting force, so that the capacity of resisting deformation in the non-working direction of the spring main body is greatly improved, the service life of the spring main body can be effectively prolonged, the deformation resisting rod piece can be selectively arranged on the outer side or the inner side of the spring main body, the adaptability adjustment can be carried out on the deformation resisting rod piece according to a use scene, and the practicability is greatly improved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A high-precision mechanical spring resisting deformation in the non-working direction comprises a spring main body and two anti-deformation rod pieces, wherein each anti-deformation rod piece comprises a fixed outer sleeve, a matched telescopic inner slide rod is connected in the fixed outer sleeve in a sliding manner, the bottom end of the telescopic inner slide rod is fixedly connected with a connecting suspension rod, movable limiting rods are fixedly connected on the outer walls of the two sides of the connecting suspension rod, fixed baffle plates are fixedly connected on the inner walls of the two sides of the fixed outer sleeve, a cylinder connecting block is fixedly connected on one side of the bottom end of the fixed outer sleeve, the telescopic inner slide rod penetrates through the outer wall of the top of the fixed outer sleeve in a sliding manner and extends to the outside, a rod connecting block matched with the cylinder connecting block is fixedly connected on one side of the top end of the telescopic inner slide rod, an air pushing piston is, the one end fixed connection of air duct has elastic airbag, two symmetrical adjustment tanks have all been seted up to the top and the bottom of spring main part, it connects the pivot to rotate to be connected with through the bearing on the inner wall of adjustment tank, the fixed cover is equipped with adjustable connecting block on the outer wall of connecting the pivot, the spread groove has been seted up in the adjustable connecting block, fixed mounting has interior connection locating piece and outer connection locating piece on the bottom inner wall of adjustment tank.
Furthermore, the anti-deformation rod piece is arranged on the inner side of the spring body, the adjustable connecting block abuts against the inner connecting positioning block, the adjustable connecting block is swung to abut against the inner connecting positioning block, then the cylinder connecting block and the rod connecting block are respectively inserted into the corresponding connecting grooves, the cylinder connecting block and the rod connecting block abut against the corresponding magnetic suction blocks, and the anti-deformation rod piece can be arranged on the inner side of the spring body.
Further, anti deformation member sets up in the outside of spring main part, adjustable connecting block offsets with the external connection locating piece, with adjustable connecting block swing to offset with the external connection locating piece, then insert a connecting block, the pole connecting block respectively in the spread groove that corresponds, and make a connecting block, the pole connecting block offsets with the magnetism that corresponds, can install anti deformation member in the outside of spring main part, thereby make the selective inboard or the outside of installing in spring main part of anti deformation member, and then can be according to using the scene to counter deformation member and make the adjustment of adaptability, the practicality has been improved greatly.
Furthermore, the connecting groove in the adjustable connecting block at the bottom end of the spring main body is matched with the cylinder connecting block, and the connecting groove in the adjustable connecting block at the top end of the spring main body is matched with the rod connecting block.
Further, fixed mounting has magnetism to inhale the piece in the spread groove, magnetism inhales the piece and adopts magnet to make, a section of thick bamboo connecting block, pole connecting block all adopt ferromagnetic material to make, magnetism inhale the piece and a section of thick bamboo connecting block, the magnetic attraction between pole connecting block, can consolidate the anti member of deforming and the spring main part be connected to avoid anti member of deforming to break away from the spring main part, and when the spring main part received radial effort, under the supporting role of anti member of deforming, can effectually avoid spring main part bending deformation.
Furthermore, the inner connecting positioning block and the outer connecting positioning block are the same in shape and size, and are symmetrically arranged.
Furthermore, the movable limiting rod is located below the fixed baffle, the top end of the movable limiting rod is abutted to the bottom end of the fixed baffle, and the spring main body cannot be stretched upwards through the arrangement of the movable limiting rod and the fixed baffle, so that the spring main body can be effectively prevented from being stretched and deformed.
Furthermore, the vertical distance between the bottom end of the air pushing piston and the top end of the air guide pipe is larger than the deformation amount of the spring main body when the spring main body is compressed to the limit, and the vertical distance between the bottom end of the rod connecting block and the top end of the fixed outer sleeve is larger than the deformation amount of the spring main body when the spring main body is compressed to the limit, so that when the spring main body is subjected to axial pressure, the anti-deformation rod piece cannot hinder the spring main body to be compressed, and the spring main body can be normally used.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme is through the setting of anti deformation member, receive under the normal compressed prerequisite of axial pressure ability at the spring main part, can effectually prevent the spring main part because of receiving axial tension tensile deformation, and can effectually prevent the spring main part because of receiving radial effort bending deformation, thereby the anti non-work of spring main part to the ability of deformation has been improved greatly, and then the life of spring main part can be effectively prolonged, and the optional installation in the outside or the inboard of spring main part of anti deformation member, can be according to the adjustment that the adaptability was made to the opposition deformation member of use scene, the practicality has been improved greatly.
(2) Swing adjustable connecting block to offseting with the in-connection locating piece, then with a section of thick bamboo connecting block, the pole connecting block inserts respectively in the spread groove that corresponds, and make a section of thick bamboo connecting block, the pole connecting block is inhaled the piece with the magnetism that corresponds and is offseted, can install anti deformation member in the inboard of spring main part, swing adjustable connecting block to offseting with the outer joint locating piece, then with a section of thick bamboo connecting block, the pole connecting block inserts respectively in the spread groove that corresponds, and make a section of thick bamboo connecting block, the pole connecting block is inhaled the piece with the magnetism that corresponds and is offseted, can install anti deformation member in the outside of spring main part, thereby make the selective inboard or the outside of installing in spring main part of anti deformation member, and then can make adaptive adjustment according to using the scene to anti deformation.
(3) Fixed mounting has magnetism to inhale the piece in the spread groove, and magnetism inhales the piece and adopts magnet to make, and a section of thick bamboo connecting block, pole connecting block all adopt ferromagnetic material to make, and magnetism inhales the piece and a section of thick bamboo connecting block, the magnetic attraction between pole connecting block, can consolidate the anti member of deforming and spring body between be connected to avoid anti member of deforming to break away from spring body, and when spring body received radial effort, under the supporting role of anti member of deforming, can effectually avoid spring body bending deformation.
(4) The movable limiting rod is located below the fixed baffle, the top end of the movable limiting rod is abutted to the bottom end of the fixed baffle, and the spring main body cannot be stretched upwards through the movable limiting rod and the fixed baffle, so that the spring main body can be effectively prevented from being stretched.
(5) Vertical distance between push away air piston bottom and air duct top is greater than the deformation volume when the spring main part is compressed by the limit, and vertical distance between pole connecting block bottom and fixed overcoat section of thick bamboo top is greater than the deformation volume when the spring main part is compressed by the limit to make when the spring main part receives axial pressure, the anti deformation member can not hinder being compressed of spring main part, and then guarantee that the spring main part can normally use.
Drawings
FIG. 1 is a schematic structural view of an anti-deformation rod of the present invention disposed inside a spring body;
FIG. 2 is a schematic cross-sectional view of the inside of the fixed outer sleeve of the present invention;
FIG. 3 is a schematic top view of the spring body of the present invention;
FIG. 4 is a schematic cross-sectional view taken at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic bottom view of the spring body of the present invention;
FIG. 6 is a schematic view of the structure of the adjusting groove in front view;
FIG. 7 is a schematic structural view of the anti-deformation rod of the present invention disposed outside the spring body.
The reference numbers in the figures illustrate:
101. fixing an outer sleeve; 102. a telescopic inner sliding rod; 103. connecting the hanger rod; 104. a movable limiting rod; 105. fixing a baffle plate; 106. a cartridge connecting block; 107. a rod connecting block; 108. a push piston; 109. an air duct; 110. an elastic air bag; 002. a spring body; 201. an adjustment groove; 202. connecting the rotating shaft; 203. an adjustable connecting block; 204. connecting grooves; 205. a magnetic block; 206. internally connecting a positioning block; 207. the outer connecting positioning block.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-2, a high precision mechanical spring for resisting deformation in non-working direction comprises a spring main body 002 and two deformation-resisting rod pieces, wherein each deformation-resisting rod piece comprises a fixed outer sleeve 101, a matched telescopic inner slide rod 102 is slidably connected in the fixed outer sleeve 101, a connecting suspension rod 103 is fixedly connected at the bottom end of the telescopic inner slide rod 102, movable limiting rods 104 are fixedly connected to the outer walls of the two sides of the connecting suspension rod 103, the movable limiting rods 104 are positioned below a fixed baffle 105, the top ends of the movable limiting rods 104 are abutted against the bottom ends of the fixed baffle 105, through the arrangement of the movable limiting rods 104 and the fixed baffle 105, the spring main body 002 cannot be upwards stretched, the spring main body 002 can be effectively prevented from being stretched and deformed, the fixed baffle 105 is fixedly connected to the inner walls of the two sides of the fixed outer sleeve 101, and a sleeve connecting block 106 is fixedly connected to, the telescopic inner slide rod 102 penetrates through the outer wall of the top of the fixed outer sleeve 101 in a sliding manner and extends to the outside, one side of the top end of the telescopic inner slide rod 102 is fixedly connected with a rod connecting block 107 matched with the cylinder connecting block 106, the bottom end of the connecting suspender 103 is fixedly connected with an air pushing piston 108, the outer wall of one side of the fixed outer sleeve 101 is fixedly connected with an air guide pipe 109, the vertical distance between the bottom end of the air pushing piston 108 and the top end of the air guide pipe 109 is larger than the deformation amount of the spring main body 002 compressed at the limit, the vertical distance between the bottom end of the rod connecting block 107 and the top end of the fixed outer sleeve 101 is larger than the deformation amount of the spring main body 002 compressed at the limit, so that when the spring main body 002 is subjected to axial pressure, an anti-deformation rod piece cannot prevent the spring main body 002 from being compressed, and further guarantee, The setting of air duct 109, elasticity gasbag 110, when spring main body 002 received axial pressure, spring main body 002 can be compressed, can drive flexible interior slide bar 102 and slide to fixed outer sleeve 101 to drive push away air piston 108 and extrude into elasticity gasbag 110 with the air of its below through air duct 109, make elasticity gasbag 110 inflate the inflation, the elasticity of elasticity gasbag 110 can provide a buffering effect, and then improves spring main body 002's performance.
Referring to fig. 3-6, the top end and the bottom end of the spring main body 002 are both provided with two symmetrical adjusting grooves 201, the inner wall of the adjusting groove 201 is rotatably connected with a connecting rotating shaft 202 through a bearing, the outer wall of the connecting rotating shaft 202 is fixedly sleeved with an adjustable connecting block 203, the adjustable connecting block 203 is internally provided with a connecting groove 204, the connecting groove 204 in the adjustable connecting block 203 at the bottom end of the spring main body 002 is matched with the cylinder connecting block 106, the connecting groove 204 in the adjustable connecting block 203 at the top end of the spring main body 002 is matched with the rod connecting block 107, the connecting groove 204 is internally and fixedly provided with a magnetic attraction block 205, the magnetic attraction block 205 is made of a magnet, the cylinder connecting block 106 and the rod connecting block 107 are both made of a ferromagnetic material, the magnetic attraction block 205, the cylinder connecting block 106 and the rod connecting block 107 can reinforce the connection between the anti-deformation, an inner connecting positioning block 206 and an outer connecting positioning block 207 are fixedly mounted on the inner wall of the bottom end of the adjusting groove 201, the inner connecting positioning block 206 and the outer connecting positioning block 207 are identical in shape and size, and the inner connecting positioning block 206 and the outer connecting positioning block 207 are symmetrically arranged.
Referring to fig. 1, the anti-deformation rod is disposed inside the spring main body 002, the adjustable connection block 203 abuts against the inner connection positioning block 206, the adjustable connection block 203 is swung to abut against the inner connection positioning block 206, the cylinder connection block 106 and the rod connection block 107 are respectively inserted into the corresponding connection grooves 204, and the cylinder connection block 106 and the rod connection block 107 abut against the corresponding magnetic attraction blocks 205, so that the anti-deformation rod is mounted inside the spring main body 002.
Please refer to fig. 7, the anti-deformation rod is disposed outside the spring main body 002, the adjustable connection block 203 abuts against the external connection positioning block 207, the adjustable connection block 203 is swung to abut against the external connection positioning block 207, then the barrel connection block 106 and the rod connection block 107 are respectively inserted into the corresponding connection slots 204, and the barrel connection block 106 and the rod connection block 107 abut against the corresponding magnetic attraction block 205, so that the anti-deformation rod can be installed outside the spring main body 002, and the anti-deformation rod can be selectively installed inside or outside the spring main body 002, so that the anti-deformation rod can be adjusted adaptively according to the use scene, and the practicability is greatly improved.
According to the invention, through the arrangement of the anti-deformation rod piece, on the premise that the spring main body 002 can be normally compressed under the axial pressure, the spring main body 002 can be effectively prevented from being stretched and deformed due to the axial tension, and the spring main body 002 can be effectively prevented from being bent and deformed due to the radial acting force, so that the capacity of resisting deformation in the non-working direction of the spring main body 002 is greatly improved, the service life of the spring main body 002 can be further effectively prolonged, and the anti-deformation rod piece can be selectively arranged on the outer side or the inner side of the spring main body 002, so that the anti-deformation rod piece can be adaptively adjusted according to the use scene, and the practicability is greatly.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. The utility model provides an anti non-work is to high accuracy mechanical spring of deformation, includes spring main part (002) and two anti deformation member, its characterized in that: the anti-deformation rod piece comprises a fixed outer sleeve (101), a matched telescopic inner slide bar (102) is connected in the fixed outer sleeve (101) in a sliding manner, a connecting suspension rod (103) is fixedly connected at the bottom end of the telescopic inner slide bar (102), movable limiting rods (104) are fixedly connected on the outer walls of two sides of the connecting suspension rod (103), a fixed baffle (105) is fixedly connected on the inner walls of two sides of the fixed outer sleeve (101), a cylinder connecting block (106) is fixedly connected at one side of the bottom end of the fixed outer sleeve (101), the telescopic inner slide bar (102) penetrates through the outer wall of the top of the fixed outer sleeve (101) in a sliding manner and extends to the outside, a rod connecting block (107) matched with the cylinder connecting block (106) is fixedly connected at one side of the top end of the telescopic inner slide bar (102), and a gas pushing piston, fixedly connected with air duct (109) on the outer wall of fixed outer sleeve (101) one side, one end fixedly connected with elasticity gasbag (110) of air duct (109), two symmetrical adjustment tank (201) have all been seted up to the top and the bottom of spring main part (002), rotate through the bearing on the inner wall of adjustment tank (201) and be connected pivot (202), fixed cover is equipped with adjustable connecting block (203) on the outer wall of connection pivot (202), spread groove (204) have been seted up in adjustable connecting block (203), fixed mounting has interior connection locating piece (206) and outer joint locating piece (207) on the bottom inner wall of adjustment tank (201).
2. A high precision mechanical spring resisting deformation in the non-working direction according to claim 1, wherein: the anti-deformation rod piece is arranged on the inner side of the spring main body (002), and the adjustable connecting block (203) is abutted to the inner connecting positioning block (206).
3. A high precision mechanical spring resisting deformation in the non-working direction according to claim 1, wherein: the anti-deformation rod piece is arranged on the outer side of the spring main body (002), and the adjustable connecting block (203) is abutted to the outer connecting positioning block (207).
4. A high precision mechanical spring resisting deformation in the non-working direction according to claim 1, wherein: the connecting groove (204) in the adjustable connecting block (203) at the bottom end of the spring main body (002) is matched with the cylinder connecting block (106), and the connecting groove (204) in the adjustable connecting block (203) at the top end of the spring main body (002) is matched with the rod connecting block (107).
5. A high precision mechanical spring resisting deformation in the non-working direction according to claim 4, wherein: the magnetic attraction block (205) is fixedly mounted in the connecting groove (204), the magnetic attraction block (205) is made of a magnet, and the cylinder connecting block (106) and the rod connecting block (107) are made of ferromagnetic materials.
6. A high precision mechanical spring resisting deformation in the non-working direction according to claim 1, wherein: the inner connecting positioning block (206) and the outer connecting positioning block (207) are the same in shape and size, and the inner connecting positioning block (206) and the outer connecting positioning block (207) are symmetrically arranged.
7. A high precision mechanical spring resisting deformation in the non-working direction according to claim 1, wherein: the movable limiting rod (104) is located below the fixed baffle (105), and the top end of the movable limiting rod (104) is abutted to the bottom end of the fixed baffle (105).
8. A high precision mechanical spring resisting deformation in the non-working direction according to claim 1, wherein: the vertical distance between the bottom end of the air pushing piston (108) and the top end of the air guide pipe (109) is larger than the deformation amount of the spring main body (002) when the spring main body is compressed at the limit.
9. A high precision mechanical spring resisting deformation in the non-working direction according to claim 1, wherein: the vertical distance between the bottom end of the rod connecting block (107) and the top end of the fixed outer sleeve (101) is larger than the deformation amount of the spring main body (002) when the spring main body is compressed at the limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575791.2A CN112610645A (en) | 2020-12-28 | 2020-12-28 | High-precision mechanical spring resisting deformation in non-working direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575791.2A CN112610645A (en) | 2020-12-28 | 2020-12-28 | High-precision mechanical spring resisting deformation in non-working direction |
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| CN112610645A true CN112610645A (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011575791.2A Pending CN112610645A (en) | 2020-12-28 | 2020-12-28 | High-precision mechanical spring resisting deformation in non-working direction |
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| CN104613116A (en) * | 2015-01-29 | 2015-05-13 | 苏州中太动力弹簧有限公司 | Anti-deformation spring |
| CN207762172U (en) * | 2017-10-20 | 2018-08-24 | 浙江省诸暨市凌华弹簧有限公司 | A kind of tension spring of antifatigue deformation |
| CN208565367U (en) * | 2018-06-22 | 2019-03-01 | 钱江弹簧（杭州）有限公司 | A kind of spring that non-deformability is strong |
| DE102017129539A1 (en) * | 2017-12-12 | 2019-06-13 | Stabilus Gmbh | Spring sleeve, cylinder, piston-cylinder unit and method of manufacturing a piston-cylinder unit |
| CN110749262A (en) * | 2019-12-09 | 2020-02-04 | 河南交通职业技术学院 | Pit digging volume detection device and detection method for detecting roadbed compactness by pit digging method |
| CN210318283U (en) * | 2019-06-20 | 2020-04-14 | 江苏新航合金科技有限公司 | Nickel alloy spring |
| CN111358238A (en) * | 2020-04-17 | 2020-07-03 | 安徽中慧展览服务有限公司 | Display device convenient to remove rotation |
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2020
- 2020-12-28 CN CN202011575791.2A patent/CN112610645A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613116A (en) * | 2015-01-29 | 2015-05-13 | 苏州中太动力弹簧有限公司 | Anti-deformation spring |
| CN207762172U (en) * | 2017-10-20 | 2018-08-24 | 浙江省诸暨市凌华弹簧有限公司 | A kind of tension spring of antifatigue deformation |
| DE102017129539A1 (en) * | 2017-12-12 | 2019-06-13 | Stabilus Gmbh | Spring sleeve, cylinder, piston-cylinder unit and method of manufacturing a piston-cylinder unit |
| CN208565367U (en) * | 2018-06-22 | 2019-03-01 | 钱江弹簧（杭州）有限公司 | A kind of spring that non-deformability is strong |
| CN210318283U (en) * | 2019-06-20 | 2020-04-14 | 江苏新航合金科技有限公司 | Nickel alloy spring |
| CN110749262A (en) * | 2019-12-09 | 2020-02-04 | 河南交通职业技术学院 | Pit digging volume detection device and detection method for detecting roadbed compactness by pit digging method |
| CN111358238A (en) * | 2020-04-17 | 2020-07-03 | 安徽中慧展览服务有限公司 | Display device convenient to remove rotation |
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Application publication date: 20210406 |