CN217271578U

CN217271578U - Extension spring with limiting protection structure

Info

Publication number: CN217271578U
Application number: CN202221291003.1U
Authority: CN
Inventors: 田备
Original assignee: Taizhou Suyuan Auto Parts Co ltd
Current assignee: Taizhou Suyuan Auto Parts Co ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-08-23
Anticipated expiration: 2032-05-27

Abstract

The utility model is suitable for an extension spring technical field provides an extension spring with spacing protection architecture, including spring main part, fixed block, connecting piece one, connecting piece two, telescopic link one, telescopic link two, slide bar, sliding shaft and folding rod, the upper and lower both ends of spring main part all fixedly connected with fixed block, and all install the couple on two fixed blocks, in order to stimulate the spring; the first telescopic rod and the second telescopic rod are both connected with the first sliding groove and the second sliding groove in a sliding mode through sliding rods, so that the first telescopic rod slides in the first connecting piece, and the second telescopic rod slides in the second connecting piece to stretch; the first telescopic rod and the second telescopic rod stretch along with the spring, so that the stretching length of the spring is limited, and the service life of the spring is prolonged; and the inner walls of the two sides of the first sliding groove and the second sliding groove are provided with a first damping spring and a second damping spring for damping.

Description

Extension spring with limiting protection structure

Technical Field

The utility model belongs to the technical field of extension spring, especially, relate to an extension spring who has spacing protection architecture.

Background

In the field of current tension springs, springs are mechanical parts that work 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. An extension spring (also called a tension spring, simply referred to as a tension spring) is a coil spring that bears an axial tension, and is generally made of a material with a circular cross section. When not under load, the tension spring is generally tight and free of gaps between the coils.

The existing extension spring is easy to be over-extended in the use process, so that the service life of the extension spring is short, the extension spring needs to be frequently replaced, and the use cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides an extension spring with spacing protection architecture aims at solving the spring that mentions in the above-mentioned background and easily overstretch in the use, and extension spring's life is shorter, needs often to change extension spring, the higher problem of use cost.

The utility model discloses a realize like this, a extension spring who has spacing protection architecture, including spring main part, fixed block, connecting piece one, connecting piece two, telescopic link one, telescopic link two, slide bar, sliding shaft and folding rod.

The upper end and the lower end of the spring main body are fixedly connected with the fixing blocks.

The two fixing blocks are respectively provided with the first connecting piece and the second connecting piece, and the spring main body is sleeved outside the first connecting piece and the second connecting piece.

All seted up sliding tray one on the both sides inner wall of connecting piece one, all seted up sliding tray two on the both sides inner wall of connecting piece two, all install on telescopic link one and the telescopic link two the slide bar, just the both ends of slide bar all are provided with curved slip head.

The first telescopic rod is connected with the first sliding grooves in a sliding mode through the sliding rod.

The two telescopic rod bodies are connected with the two sliding grooves II in a sliding mode through the sliding rods.

Preferably, the inner walls of the two sides of the first sliding groove are provided with first damping springs, and the inner walls of the two sides of the second sliding groove are provided with second damping springs.

Preferably, the first damping spring and the second damping spring are both provided with plastic pads.

Preferably, the outer walls of the first telescopic rod and the second telescopic rod are respectively provided with a first mounting groove and a second mounting groove.

The mounting groove I and the mounting groove II are internally provided with the sliding shafts, and the sliding shafts are provided with two sliding blocks in a sliding mode.

Preferably, the two folding rods are rotatably connected with a rotating shaft.

And two ends of the folding rods are rotatably connected with the corresponding sliding blocks.

Preferably, the two fixing blocks are provided with hooks.

And the outer surfaces of the spring main body and the hook are both sprayed with antirust layers.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an extension spring with a limit protection structure, the upper end and the lower end of a spring main body are both fixedly connected with fixed blocks, and hooks are arranged on the two fixed blocks for pulling the spring; meanwhile, a first connecting piece and a second connecting piece are respectively arranged on the two fixed blocks, a first sliding groove and a second sliding groove are respectively formed in the first connecting piece and the second connecting piece, the first telescopic rod and the second telescopic rod are both connected with the first sliding groove and the second sliding groove in a sliding mode through sliding rods, so that the first telescopic rod slides in the first connecting piece, and the second telescopic rod slides in the second connecting piece to stretch; the first telescopic rod and the second telescopic rod stretch along with the spring to limit the stretching length of the spring, so that the service life of the spring is prolonged; the inner walls of the two sides of the first sliding groove and the second sliding groove are respectively provided with a first damping spring and a second damping spring, so that the vibration of the first telescopic rod and the second telescopic rod during sliding is reduced, and the stability is higher; the two folding rods are rotatably connected through a rotating shaft, and are both connected with the first telescopic rod and the second telescopic rod in a sliding manner so as to be folded, and the lengths of the first telescopic rod and the second telescopic rod are prolonged; and this extension spring function is comprehensive, and convenient to use can restrict the extension length of spring, prolongs the life of spring, more is worth using widely.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a schematic structural view of a first connecting member of the present invention;

fig. 3 is an enlarged view of a point a in fig. 2 according to the present invention;

in the figure: 1. a spring body; 2. a fixed block; 201. hooking; 3. a first connecting piece; 301. a first sliding groove; 302. a first damping spring; 4. a second connecting piece; 401. a second sliding groove; 402. a second damping spring; 5. a first telescopic rod; 501. a first mounting groove; 6. a second telescopic rod; 601. a second mounting groove; 7. a slide bar; 701. a sliding head; 8. a sliding shaft; 801. a slider; 9. a folding bar; 901. and rotating the shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-3, the present invention provides a technical solution: an extension spring with a limiting protection structure comprises a spring main body 1, a fixing block 2, a connecting piece I3, a connecting piece II 4, a telescopic rod I5, a telescopic rod II 6, a sliding rod 7, a sliding shaft 8 and a folding rod 9, wherein the upper end and the lower end of the spring main body 1 are fixedly connected with the fixing block 2, the connecting piece I3 and the connecting piece II 4 are respectively arranged on the two fixing blocks 2, the spring main body 1 is sleeved outside the connecting piece I3 and the connecting piece II 4, the inner walls of the two sides of the connecting piece I3 are respectively provided with a sliding groove I301, the inner walls of the two sides of the connecting piece II 4 are respectively provided with a sliding groove II 401, the telescopic rod I5 and the telescopic rod II 6 are respectively provided with the sliding rod 7, and the two ends of the sliding rod 7 are both provided with arc-shaped sliding heads 701, the first telescopic rod 5 is connected with the first two sliding grooves 301 in a sliding mode through the sliding rod 7, and the second telescopic rod 6 is connected with the second two sliding grooves 401 in a sliding mode through the sliding rod 7.

Wherein, one 5 telescopic link slides in two sliding tray 301 through slide bar 7, two 6 telescopic links slide in two 401 sliding tray through slide bar 7, when spring main body 1 received the compression, one 5 telescopic link and two 6 contractions of telescopic link are in one 3 and two 4 connecting pieces, when spring main body 1 received the extension, one 5 telescopic link and two 6 following extensions of telescopic link, restriction spring main body 1's length of elongation, prevent that spring main body 1 from receiving the extension force too big, and then prolong spring main body 1's life.

The inner walls of the two sides of the first sliding groove 301 are provided with a first damping spring 302, the inner walls of the two sides of the second sliding groove 401 are provided with a second damping spring 402, and the first damping spring 302 and the second damping spring 402 are provided with plastic pads.

Wherein, when one 5 and two 6 telescopic links slide in the sliding tray 301 and two 401, one 5 and two 6 conflict damping spring 302 and two 402 of damping spring of telescopic link, damping spring 302 and two 402 of damping spring slow down the shaking force of one 5 and two 6 telescopic links of telescopic link, the plastic pad material is softer simultaneously, prevent that one 5 and two 6 telescopic links from colliding with the diapire of sliding tray 301 and two 401 of sliding tray, the life of extension one 5 and two 6 telescopic links.

Mounting groove one 501 and mounting groove two 601 have been seted up on the outer wall of telescopic link one 5 and telescopic link two 6 respectively, all install slide shaft 8 in mounting groove one 501 and the mounting groove two 601, and equal slidable mounting has two sliders 801 on two slide shaft 8, and two folding rod 9 rotate and are connected with axis of rotation 901, and the both ends of two folding rod 9 all rotate and connect the slider 801 that corresponds.

In addition, slider 801 can slide on sliding shaft 8, and two folding rod 9 accessible axis of rotation 901 are folded and are expanded, and telescopic link one 5 and two 6 telescopic links are close to each other, two folding rod 9 of folding, and telescopic link one 5 and two 6 telescopic links are kept away from each other, and two folding rod 9 expand, the length of extension telescopic link one 5 and two 6 telescopic links.

All install couple 201 on two fixed blocks 2, and all spray on the surface of spring main part 1 and couple 201 and have the antirust coat.

In addition, the extension spring can be hung through the hook 201, the extension spring body 1 is used, meanwhile, the antirust layers on the outer surfaces of the spring body 1 and the hook 201 can be epoxy antirust paint, the corrosion rate of the spring body 1 and the hook 201 is reduced, and the service lives of the spring body 1 and the hook 201 are prolonged.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the extension spring can be hung on the hook 201, the extension spring main body 1, the first expansion link 5 slides in the first two sliding grooves 301 through the sliding rod 7, the second expansion link 6 slides in the second two sliding grooves 401 through the sliding rod 7, when the spring main body 1 is compressed, the first telescopic rod 5 and the second telescopic rod 6 are contracted in the first connecting piece 3 and the second connecting piece 4, when the spring main body 1 is stretched, extension is followed to telescopic link 5 and telescopic link two 6, restriction spring main body 1's length that elongates, and two 9 accessible axis of rotation 901 of folding rod are folded and are expanded, and telescopic link 5 and two 6 are close to each other, two folding rod 9 of folding, and telescopic link 5 and two 6 are kept away from each other, and two folding rod 9 expand, prevent that spring main body 1 from receiving the tensile force too big, and then extension spring main body 1's life.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An extension spring with a limit protection structure is characterized in that: the spring fixing device comprises a spring main body (1), a fixing block (2), a first connecting piece (3), a second connecting piece (4), a first telescopic rod (5), a second telescopic rod (6), a sliding rod (7), a sliding shaft (8) and a folding rod (9);

the upper end and the lower end of the spring main body (1) are fixedly connected with the fixed blocks (2);

the first connecting piece (3) and the second connecting piece (4) are respectively arranged on the two fixing blocks (2), and the spring main body (1) is sleeved outside the first connecting piece (3) and the second connecting piece (4);

the inner walls of the two sides of the first connecting piece (3) are respectively provided with a first sliding groove (301), the inner walls of the two sides of the second connecting piece (4) are respectively provided with a second sliding groove (401), the first telescopic rod (5) and the second telescopic rod (6) are respectively provided with the sliding rod (7), and the two ends of the sliding rod (7) are respectively provided with an arc-shaped sliding head (701);

the first telescopic rod (5) is connected with the first sliding grooves (301) in a sliding mode through the sliding rod (7);

the second telescopic rod (6) is connected with the second sliding groove (401) in a sliding mode through the sliding rod (7).

2. A tension spring having a restraint structure as defined in claim 1, wherein: and the inner walls of the two sides of the first sliding groove (301) are provided with a first damping spring (302), and the inner walls of the two sides of the second sliding groove (401) are provided with a second damping spring (402).

3. A tension spring having a restraint structure according to claim 2, wherein: and plastic pads are arranged on the first damping spring (302) and the second damping spring (402).

4. A tension spring having a restraint structure according to claim 1, wherein: the outer walls of the first telescopic rod (5) and the second telescopic rod (6) are respectively provided with a first mounting groove (501) and a second mounting groove (601);

all install in mounting groove one (501) and mounting groove two (601) sliding shaft (8), and two sliding shaft (8) are last all slidable mounting to have two sliders (801).

5. An extension spring having a restraint structure according to claim 4, wherein: the two folding rods (9) are rotatably connected with a rotating shaft (901);

and the two ends of the two folding rods (9) are rotatably connected with the corresponding sliding blocks (801).

6. A tension spring having a restraint structure as defined in claim 1, wherein: hooks (201) are arranged on the two fixed blocks (2);

and anti-rust layers are sprayed on the outer surfaces of the spring main body (1) and the hook (201).