CN110657185B

CN110657185B - Special-shaped spring with auxiliary spring layer

Info

Publication number: CN110657185B
Application number: CN201910932714.9A
Authority: CN
Inventors: 范浩; 李涵; 周乾松
Original assignee: Zhejiang Three A Spring Co ltd
Current assignee: ZHEJIANG THREE A SPRING Co.,Ltd.
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2021-09-17
Anticipated expiration: 2039-09-29
Also published as: CN110657185A

Abstract

The invention relates to the field of special-shaped springs, in particular to a special-shaped spring with an auxiliary spring layer, which comprises a special-shaped spring, a stabilizing mechanism, a fixing mechanism, a telescopic mechanism and a clamping mechanism, and is characterized in that: the inside of abnormal shape spring is equipped with stabilizing mean, two fixed establishment of equal fixedly connected with in both ends of abnormal shape spring, the center department of abnormal shape spring has telescopic machanism through two clamping mechanism joints. Through the spacing spout and the spacing slider that set up, make flexible piece can slide at flexible inslot portion, and then make the distance of first flexible seat and the flexible seat of second can stretch out and draw back, when the installation abnormal shape spring, shorten the distance of the flexible seat of first flexible seat and second and then make putting into between two installation faces of abnormal shape spring can the ratio, make abnormal shape spring provide elasticity for two installation faces, prevent that the abnormal shape spring from causing the abnormal shape spring to pop out and cause the injury to operating personnel in the installation, and then easy to assemble.

Description

Special-shaped spring with auxiliary spring layer

Technical Field

The invention relates to the field of special-shaped springs, in particular to a special-shaped spring with an auxiliary spring layer.

Background

The rectangular spring is a rectangular spring for short, and when the installation space is limited, the rectangular spring is made of a rectangular section material, and because the rectangular spring can obtain a larger load bearing rectangular spring under the same space and deformation amount, compared with a spring made of a circular section material, the rectangular spring has a larger section area under the same space condition, the rectangular spring can absorb larger energy, and is mainly used for heavy machinery, stamping dies or springs with extremely high rigidity.

The cross sectional area of rectangle spring is big, so the energy that can absorb is just also big, and then make the bounce-back that the rectangle spring provided also great, when the rectangle spring need install between two installation faces that the installation space received the restriction, because two installation face rigidity, so unable removal installation face puts into the rectangle spring, if put into between two installation faces again with the compression of rectangle spring, so because the rebound dynamics of rectangle spring is great, can cause the rectangle spring to pop out and cause the injury to operating personnel in the installation, so inconvenient installation, and the rectangle spring is installed after between two installation faces, can receive the pressure of two installation faces, when the rectangle spring receives external shock and then the pressure that makes and receive takes place the slope, the rectangle spring can take place to buckle from the center, and then unable normal elasticity that provides.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a special-shaped spring with an auxiliary spring layer.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a heterotypic spring with auxiliary spring layer, includes heterotypic spring, stabilizing mean, fixed establishment, telescopic machanism, latch mechanism, its characterized in that: the inside of abnormal shape spring is equipped with stabilizing mean, two fixed establishment of equal fixedly connected with in both ends of abnormal shape spring, the center department of abnormal shape spring has telescopic machanism through two clamping mechanism joints.

Specifically, the abnormal shape spring includes first spring, second spring, the one end joint of first spring is in fixed establishment's inside, the other end of first spring passes through the one end of clamping mechanism joint at telescopic machanism, telescopic machanism's the other end has the second spring through the clamping mechanism joint, the other end joint of second spring is inside fixed establishment.

Specifically, stabilizing mean includes first stationary blade, stabilizing sleeve, stable loop bar, second stationary blade, spacing ring, fender ring, the fixed cover of first stationary blade is connected on the inner wall that first spring is close to fixed establishment one end, one side center department fixedly connected with stabilizing sleeve of fixed establishment is kept away from to first stationary blade, stabilizing sleeve's inside has cup jointed stable loop bar, stabilizing sleeve bar's the other end fixedly connected with second stationary blade, the second stationary blade is fixed to cup joint on the inner wall that fixed establishment one end was kept away from to first spring, stabilizing sleeve bar is located the fixed spacing ring that has cup jointed in the inside one end top of stabilizing sleeve, stabilizing sleeve's the fixed cover of opening part has cup jointed the fender ring.

Specifically, fixed establishment includes spring holder, fixing clip hole, fixed fixture block, fixed plate, fixed screw, the fixing clip hole has been seted up to one side inside of spring holder, the inside joint of fixing clip hole has first spring, the fixed fixture block of opposite side center department fixedly connected with of spring holder, the fixing clip block joint is inside the draw-in groove that spring mounting department set up, two fixed plates of fixedly connected with, two on the both sides side of spring holder respectively the fixed screw has all been seted up on the surface of fixed plate.

Specifically, the telescopic mechanism comprises a first telescopic seat, a telescopic groove, a telescopic block, a second telescopic seat, an adjusting screw hole, an adjusting bolt, a conical surface, a supporting block, a rotating piece, a first telescopic clamping groove, a second telescopic clamping groove, a limiting sliding groove and a limiting sliding block, the telescopic groove is formed in the first telescopic seat, the telescopic block is inserted in the telescopic groove, the second telescopic seat is fixedly connected to the near section of the telescopic block, the adjusting screw hole is formed in the outer wall of the first telescopic seat and extends into the telescopic groove, the adjusting bolt is inserted in the adjusting screw hole, the conical surface is fixedly connected to one end of the adjusting bolt, which is located in the telescopic groove, one side of the telescopic block, which is close to the conical surface, is provided with an inclined surface corresponding to the conical surface, the supporting block is fixedly connected to the inside of the telescopic groove, and the rotating piece is fixedly connected to the surface of the adjusting bolt, the telescopic device is characterized in that one end of the first telescopic seat, which is far away from the telescopic groove, is provided with a first telescopic clamping groove, one end of the second telescopic seat, which is far away from the telescopic block, is provided with a second telescopic clamping groove, two limiting sliding grooves are respectively formed in the relative inner wall of the first telescopic seat, and two limiting sliding blocks matched with the two limiting sliding grooves are respectively and fixedly connected to two side walls of the telescopic block.

Specifically, the clamping mechanism includes first jack, second jack, third jack, joint screw, joint hole, U-shaped cardboard, joint bolt, first jack is seted up on the outer wall of first flexible seat, the second jack extends to the inside of first flexible draw-in groove, first spring is located and offers the third jack corresponding with the second jack on the inside one end outer wall of first flexible draw-in groove, the inside of first jack, second jack, third jack is inserted and is equipped with same U-shaped cardboard, the joint screw has been seted up between first jack and the second jack, the joint hole that corresponds with the joint screw has been seted up on the surface of U-shaped cardboard, joint screw and the downthehole threaded connection of joint have the joint bolt.

Specifically, the connecting structure of the first spring and the first telescopic seat is the same as the connecting structure of the second spring and the second telescopic seat.

The invention has the beneficial effects that:

(1) according to the special-shaped spring with the auxiliary spring layer, the telescopic block can slide in the telescopic groove through the arranged limiting sliding groove and the limiting sliding block, so that the distance between the first telescopic seat and the second telescopic seat can be telescopic, when the special-shaped spring is installed, the distance between the first telescopic seat and the second telescopic seat is shortened, the special-shaped spring can be proportionally placed between the two installation surfaces, after the installation is completed, the adjusting bolt is inserted into the adjusting screw hole to prop the telescopic block open through the conical surface, so that the distance between the first telescopic seat and the second telescopic seat is increased, the special-shaped spring provides elasticity for the two installation surfaces, the problem that the special-shaped spring is popped out in the installation process to cause injury to operators is avoided, and the installation is convenient.

(2) According to the special-shaped spring with the auxiliary spring layer, the first spring and the second spring are kept straight all the time in the compression process through the stabilizing sleeve and the stabilizing loop bar which are arranged in the first spring and the second spring, so that when the special-shaped spring is subjected to external vibration and further transverse force, the special-shaped spring cannot be bent from the center, the special-shaped spring is prevented from being incapable of normally providing elastic force, the special-shaped spring is in a normal working state, and normal use is guaranteed.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic front structural view of a special-shaped spring with an auxiliary spring layer according to the present invention;

FIG. 2 is a front cross-sectional view of a telescopic mechanism of a special-shaped spring with an auxiliary spring layer according to the present invention;

FIG. 3 is a left side sectional view of a contracting mechanism of a special-shaped spring with an auxiliary spring layer according to the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 1 in a profiled spring with an auxiliary spring layer according to the present invention;

fig. 5 is an enlarged view of a portion B in fig. 1 of the special-shaped spring with the auxiliary spring layer provided by the invention.

In the figure: 1. a special-shaped spring; 11. a first spring; 12. a second spring; 2. a stabilizing mechanism; 21. a first fixing sheet; 22. a stabilizing sleeve; 23. stabilizing the loop bar; 24. a second fixing sheet; 25. a limiting ring; 26. a baffle ring; 3. a fixing mechanism; 31. a spring seat; 32. fixing the clamp hole; 33. fixing the fixture block; 34. a fixing plate; 35. fixing screw holes; 4. a telescoping mechanism; 41. a first telescopic base; 42. a telescopic groove; 43. a telescopic block; 44. a second telescopic base; 45. adjusting the screw hole; 46. adjusting the bolt; 47. a conical surface; 48. a support block; 49. rotating the sheet; 410. a first telescopic clamping groove; 411. a second telescopic clamping groove; 412. a limiting chute; 413. a limiting slide block; 5. a clamping mechanism; 51. a first jack; 52. a second jack; 53. a third jack; 54. clamping the screw hole; 55. a clamping hole; 56. a U-shaped clamping plate; 57. and clamping the bolt.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the special-shaped spring with the auxiliary spring layer according to the present invention includes a special-shaped spring 1, a stabilizing mechanism 2, a fixing mechanism 3, a telescopic mechanism 4, and a clamping mechanism 5, and is characterized in that: the inside of abnormal shape spring 1 is equipped with stabilizing mean 2, two fixed establishment 3 of the equal fixedly connected with in both ends of abnormal shape spring 1, the center department of abnormal shape spring 1 has telescopic machanism 4 through two 5 joints of latch mechanism.

Specifically, heterotypic spring 1 includes first spring 11, second spring 12, the one end joint of first spring 11 is in fixed establishment 3's inside, the other end of first spring 11 passes through 5 joints of latch mechanism in the one end of telescopic machanism 4, telescopic machanism 4's the other end has second spring 12 through 5 joints of latch mechanism, the other end joint of second spring 12 is inside fixed establishment 3.

Specifically, the stabilizing mechanism 2 includes a first fixing piece 21, a stabilizing sleeve 22, a stabilizing loop bar 23, a second fixing piece 24, a limit ring 25 and a baffle ring 26, the first fixing piece 21 is fixedly sleeved on the inner wall of one end of the first spring 11 close to the fixing mechanism 3, the first fixing piece 21 is far away from the fixing mechanism 3, the stabilizing sleeve 22 is fixedly connected with the stabilizing sleeve 22 at the center of one side, the stabilizing sleeve 23 is sleeved inside the stabilizing sleeve 22, the other end of the stabilizing loop bar 23 is fixedly connected with the second fixing piece 24, the second fixing piece 24 is fixedly sleeved on the inner wall of one end of the first spring 11 far away from the fixing mechanism 3, the stabilizing loop bar 23 is positioned at the top of the inner end of the stabilizing sleeve 22 and is fixedly sleeved with the limit ring 25, the baffle ring 26 is fixedly sleeved at the opening of the stabilizing sleeve 22, and the stabilizing loop bar 23 are arranged inside the first spring 11 and the second spring 12, so that the first spring 11 and the second spring 12 can always keep the first spring 11 and the second spring 12 in the compression process The holding ratio is straight, so that when the special-shaped spring 1 is subjected to external vibration and further subjected to transverse force, the special-shaped spring 1 cannot be bent from the center, the situation that the special-shaped spring 1 cannot normally provide elastic force is further prevented, and the special-shaped spring 1 is always in a normal working state.

Specifically, the fixing mechanism 3 includes a spring seat 31, a fixing clip hole 32, a fixing clip block 33, a fixing plate 34, and a fixing screw hole 35, the fixing clip hole 32 is provided inside one side of the spring seat 31, the first spring 11 is clamped inside the fixing clip hole 32, the fixing clip block 33 is fixedly connected to the center of the other side of the spring seat 31, the fixing clip block 33 is clamped inside a clip groove provided in the spring installation position, two fixing plates 34 are fixedly connected to two side edges of the spring seat 31, the fixing screw hole 35 is provided on the surface of each fixing plate 34, the fixing clip block 33 is fixed to two installation surfaces through the fixing screw hole 35 and the fixing bolt, and the fixing clip block 33 is clamped in the fixing hole provided in the installation surface to prevent the first spring 11 and the second spring from shaking.

Specifically, the telescopic mechanism 4 includes a first telescopic seat 41, a telescopic slot 42, a telescopic block 43, a second telescopic seat 44, an adjusting screw hole 45, an adjusting bolt 46, a conical surface 47, a supporting block 48, a rotating plate 49, a first telescopic slot 410, a second telescopic slot 411, a limiting sliding slot 412, and a limiting slider 413, the telescopic slot 42 is formed in the first telescopic seat 41, the telescopic block 43 is inserted in the telescopic slot 42, the second telescopic seat 44 is fixedly connected to a near-Yiyi section of the telescopic block 43, the adjusting screw hole 45 is formed in the outer wall of the first telescopic seat 41, the adjusting screw hole 45 extends to the inside of the telescopic slot 42, the adjusting bolt 46 is inserted in the adjusting screw hole 45, the conical surface 47 is fixedly connected to one end of the adjusting bolt 46 located in the telescopic slot 42, and an inclined surface corresponding to the conical surface 47 is formed on one side of the telescopic block 43 close to the conical surface 47, the inside of the telescopic slot 42 is fixedly connected with a supporting block 48, the surface of the adjusting bolt 46 is fixedly connected with a rotating plate 49, one end of the first telescopic base 41, which is far away from the telescopic slot 42, is provided with a first telescopic slot 410, one end of the second telescopic base 44, which is far away from the telescopic block 43, is provided with a second telescopic slot 411, the opposite inner walls of the first telescopic base 41 are respectively provided with two limiting sliding slots 412, two side walls of the telescopic block 43 are respectively and fixedly connected with two limiting sliding blocks 413 matched with the two limiting sliding slots 412, the telescopic block 43 can slide in the telescopic slot 42 through the arranged limiting sliding slots 412 and the limiting sliding blocks 413, so that the distance between the first telescopic base 41 and the second telescopic base 44 can be telescopic, when the special-shaped spring 1 is installed, the distance between the first telescopic base 41 and the second telescopic base 44 is shortened, and the special-shaped spring 1 can be more straightly placed between the two installation surfaces, after the installation is accomplished, insert adjusting bolt 46 and adjust screw 45 inside and strut flexible piece 43 through conical surface 47, and then make first flexible seat 41 and the distance grow of the flexible seat 44 of second, make heterotypic spring 1 provide elasticity for two installation faces, prevent that heterotypic spring 1 from causing heterotypic spring to pop out and cause the injury to operating personnel in the installation, and then easy to assemble.

Specifically, the clamping mechanism 5 includes a first jack 51, a second jack 52, a third jack 53, a clamping screw hole 54, a clamping hole 55, a U-shaped clamping plate 56, and a clamping bolt 57, the first jack 51 is disposed on the outer wall of the first telescopic seat 41, the second jack 52 extends into the first telescopic slot 410, the third jack 53 corresponding to the second jack 52 is disposed on the outer wall of one end of the first spring 11 located inside the first telescopic slot 410, the same U-shaped clamping plate 56 is inserted inside the first jack 51, the second jack 52, and the third jack 53, a clamping screw hole 54 is disposed between the first jack 51 and the second jack 52, a clamping hole 55 corresponding to the clamping screw hole 54 is disposed on the surface of the U-shaped clamping plate 56, the clamping screw hole 54 and the clamping bolt 57 are connected with the inner threads of the clamping screw hole 55, the first spring 11 and the first telescopic base 41 are clamped through the U-shaped clamping block 56, the U-shaped clamping plate 56 and the first telescopic base 41 are fixedly connected through the clamping bolt 57, and the first spring 11 and the second spring 12 are fixedly clamped at two ends of the telescopic mechanism 4 respectively through the clamping structure 5.

Specifically, the connection structure of the first spring 11 and the first telescopic seat 41 is the same as the connection structure of the second spring 12 and the second telescopic seat 44, and the two ends of the telescopic mechanism 4 are respectively clamped with the first spring 11 and the second spring 12 through the two same clamping mechanisms 5.

When the special-shaped spring 1 is installed, the distance between the first telescopic seat 41 and the second telescopic seat 44 is shortened, the special-shaped spring 1 can be straightly placed between the two installation surfaces, the first spring 11 and the second spring 12 are respectively clamped inside the two spring seats 31, and after the installation is finished, the adjusting bolt 46 is inserted into the adjusting screw hole 45 to drive the conical surface 47 to move forwards to expand the space between the telescopic block 43 and the telescopic groove 42 through rotating the adjusting screw hole 45 so as to expand the space between the telescopic block 43 and the telescopic groove 42 The inclined plane of the supporting block 48 and the telescopic block 43 prevents the conical surface 47 from being inserted between the telescopic block 43 and the telescopic groove 42, so that the distance between the first telescopic seat 41 and the second telescopic seat 44 is increased, the special-shaped spring 1 provides elastic force for the two installation surfaces, the special-shaped spring 1 is prevented from being ejected out to hurt operators in the installation process, and the installation is convenient, the first spring 11 and the second spring 12 are always kept straighter in the compression process through the stabilizing sleeve 22 and the stabilizing sleeve rod 23 which are arranged inside the first spring 11 and the second spring 12, the special-shaped spring 1 is prevented from being bent from the center when being subjected to external vibration and further transverse force, and the special-shaped spring 1 is prevented from being normally provided with elastic force and is always in a normal working state.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a heterotypic spring with auxiliary spring layer, includes heterotypic spring (1), stabilizing mean (2), fixed establishment (3), telescopic machanism (4), latch mechanism (5), its characterized in that: a stabilizing mechanism (2) is arranged inside the special-shaped spring (1), two ends of the special-shaped spring (1) are fixedly connected with two fixing mechanisms (3), and a telescopic mechanism (4) is clamped at the center of the special-shaped spring (1) through two clamping mechanisms (5);

the special-shaped spring (1) comprises a first spring (11) and a second spring (12), one end of the first spring (11) is clamped inside the fixing mechanism (3), the other end of the first spring (11) is clamped at one end of the telescopic mechanism (4) through a clamping mechanism (5), the other end of the telescopic mechanism (4) is clamped with the second spring (12) through the clamping mechanism (5), and the other end of the second spring (12) is clamped inside the fixing mechanism (3);

the stabilizing mechanism (2) comprises a first fixing piece (21), a stabilizing sleeve (22), a stabilizing loop bar (23), a second fixing piece (24), a limiting ring (25) and a baffle ring (26), wherein the first fixing piece (21) is fixedly sleeved on the inner wall of one end, close to the fixing mechanism (3), of a first spring (11), the stabilizing sleeve (22) is fixedly connected to the center of one side, far away from the fixing mechanism (3), of the first fixing piece (21), the stabilizing loop bar (23) is sleeved inside the stabilizing sleeve (22), the second fixing piece (24) is fixedly connected to the other end of the stabilizing loop bar (23), the second fixing piece (24) is fixedly sleeved on the inner wall of one end, far away from the fixing mechanism (3), of the first spring (11), the limiting ring (25) is fixedly sleeved on the top of one end, located inside the stabilizing loop bar (23), of the stabilizing sleeve (22), a baffle ring (26) is fixedly sleeved at the opening of the stabilizing sleeve (22);

the fixing mechanism (3) comprises a spring seat (31), a fixing clamp hole (32), a fixing clamping block (33), a fixing plate (34) and a fixing screw hole (35), wherein the fixing clamp hole (32) is formed in one side of the spring seat (31), a first spring (11) is clamped in the fixing clamp hole (32), the fixing clamping block (33) is fixedly connected to the center of the other side of the spring seat (31), the fixing clamping block (33) is clamped in a clamping groove formed in a spring mounting position, two fixing plates (34) are fixedly connected to two side edges of the spring seat (31) respectively, and fixing screw holes (35) are formed in the surfaces of the two fixing plates (34);

the telescopic mechanism (4) comprises a first telescopic seat (41), a telescopic groove (42), a telescopic block (43), a second telescopic seat (44), an adjusting screw hole (45), an adjusting bolt (46), a conical surface (47), a supporting block (48), a rotating plate (49), a first telescopic clamping groove (410), a second telescopic clamping groove (411), a limiting sliding groove (412) and a limiting sliding block (413), wherein the telescopic groove (42) is formed in the first telescopic seat (41), the telescopic block (43) is inserted in the telescopic groove (42), the near section of the telescopic block (43) is fixedly connected with the second telescopic seat (44), the outer wall of the first telescopic seat (41) is provided with the adjusting screw hole (45), the adjusting screw hole (45) extends into the telescopic groove (42), the adjusting bolt (46) is inserted in the adjusting screw hole (45), and one end, located in the telescopic groove (42), of the adjusting bolt (46) is fixedly connected with the conical surface (47), an inclined plane corresponding to the conical surface (47) is arranged on one side, close to the conical surface (47), of the telescopic block (43), a supporting block (48) is fixedly connected inside the telescopic groove (42), a rotating piece (49) is fixedly connected to the surface of the adjusting bolt (46), a first telescopic clamping groove (410) is formed in one end, far away from the telescopic groove (42), of the first telescopic seat (41), a second telescopic clamping groove (411) is formed in one end, far away from the telescopic block (43), of the second telescopic seat (44), two limiting sliding grooves (412) are formed in the opposite inner wall of the first telescopic seat (41), and two limiting sliding blocks (413) matched with the two limiting sliding grooves (412) are fixedly connected to the two side walls of the telescopic block (43) respectively;

the clamping mechanism (5) comprises a first jack (51), a second jack (52), a third jack (53), a clamping screw hole (54), a clamping hole (55), a U-shaped clamping plate (56) and a clamping bolt (57), wherein the first jack (51) is arranged on the outer wall of the first telescopic seat (41), the second jack (52) extends to the inside of the first telescopic clamping groove (410), a third jack (53) corresponding to the second jack (52) is arranged on the outer wall of one end of the first spring (11) positioned in the first telescopic clamping groove (410), the same U-shaped clamping plate (56) is inserted in the first jack (51), the second jack (52) and the third jack (53), and a clamping screw hole (54) is arranged between the first jack (51) and the second jack (52), a clamping hole (55) corresponding to the clamping screw hole (54) is formed in the surface of the U-shaped clamping plate (56), and clamping bolts (57) are connected with the clamping screw hole (54) and the clamping hole (55) through threads;

the connecting structure of the first spring (11) and the first telescopic seat (41) is the same as the connecting structure of the second spring (12) and the second telescopic seat (44);

when the special-shaped spring seat is used, firstly, the two spring seats (31) are respectively placed on the two mounting surfaces, the fixing plate (34) is fixed on the two mounting surfaces through the fixing screw holes (35) and the fixing bolts, the fixing clamping blocks (33) are clamped in the fixing holes formed in the mounting surfaces to prevent the first spring (11) and the second spring from shaking, so that the special-shaped spring (1) can not shake, the telescopic blocks (43) can slide in the telescopic grooves (42) through the arranged limiting sliding grooves (412) and the limiting sliding blocks (413), so that the distance between the first telescopic seat (41) and the second telescopic seat (44) can be telescopic, when the special-shaped spring (1) is mounted, the distance between the first telescopic seat (41) and the second telescopic seat (44) is shortened, so that the special-shaped spring (1) can be straightly placed between the two mounting surfaces, the first spring (11) and the second spring (12) are respectively clamped in the two spring seats (31), after the installation is finished, an adjusting bolt (46) is inserted into an adjusting screw hole (45), the adjusting screw hole (45) is rotated to drive a conical surface (47) to move forwards to prop open a space between a telescopic block (43) and a telescopic groove (42), the arranged supporting block (48) and the inclined surface of the telescopic block (43) prevent the conical surface (47) from being incapable of being inserted into the space between the telescopic block (43) and the telescopic groove (42), further the distance between a first telescopic seat (41) and a second telescopic seat (44) is increased, so that the special-shaped spring (1) provides elastic force for two installation surfaces, the special-shaped spring (1) is prevented from being popped out to hurt operators in the installation process, the installation is convenient, the first spring (11) and the second spring (12) are kept straight in the compression process through a stabilizing sleeve (22) and a stabilizing sleeve rod (23) which are arranged inside the first spring (11) and the second spring (12), when the special-shaped spring (1) is subjected to external vibration and further subjected to transverse force, the special-shaped spring (1) cannot be bent from the center, so that the special-shaped spring (1) is prevented from normally providing elastic force, and the special-shaped spring (1) is always in a normal working state.