CN211501429U - Tension spring - Google Patents
Tension spring Download PDFInfo
- Publication number
- CN211501429U CN211501429U CN201922446736.2U CN201922446736U CN211501429U CN 211501429 U CN211501429 U CN 211501429U CN 201922446736 U CN201922446736 U CN 201922446736U CN 211501429 U CN211501429 U CN 211501429U
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- Prior art keywords
- connecting rod
- extension spring
- length
- connecting part
- elastic part
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- 239000000463 material Substances 0.000 claims abstract description 11
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 6
- 239000010962 carbon steel Substances 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000002180 anti-stress Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The utility model relates to an extension spring field, more specifically says, and it relates to an extension spring, include the body that is formed by the preparation of carbon steel wire material, the body includes elasticity portion, a connecting rod, a connecting portion, No. two connecting rods and No. two connecting portions. The utility model discloses the practicality is strong, and the spring that can effectively solve the extension spring eliminates because of the not enough potential safety hazard that produces of pulling force because of fixed winding the not enough condition of pulling force, simultaneously, can reduction in production cost in the production of extension spring, uses manpower sparingly and consumes, improves the material environmental protection, and then improves the holistic productivity effect of enterprise to because of the narrow and small difficult problem of assembly that leads to of installation space when still having solved follow-up installation.
Description
Technical Field
The utility model relates to an extension spring field, more specifically says that it relates to an extension spring.
Background
The extension spring, bear axial tensile coil spring, usually make with circular cross section material spring steel, in daily life, the extension spring is commonly used in the oven in order to control the motion of oven sliding door, under normal conditions, the spring of this kind of extension spring is from last hook winding to hook down, on some oven sliding doors that need different pulling force conditions, the condition that this kind of fixed winding mode then can lead to the pulling force too big or not enough, if cause the oven chamber door not to close because of the pulling force is not enough, then can produce the potential safety hazard, when pulling force is sufficient, then can cause the material waste during production, be unfavorable for the material environmental protection, and under the less condition of some assembly space conditions, the winding mode of this kind of hook winding to hook down is extremely unfavorable for the assembly of extension spring.
The drag hook position of most extension springs is half closed circular ring usually, and the open position often can take place because of the too big phenomenon that causes to drop of opening, and the open end is sharp thin, often can be because of the sharp thin fish tail operating personnel of opening.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve the above-mentioned not enough, a novel extension spring device is provided, the device reasonable in design, the spring that can effectively solve the extension spring is because of the not enough condition of pulling force that fixed winding caused, eliminate the potential safety hazard because of the not enough production of pulling force, and simultaneously, can reduction in production cost in the production of extension spring, the consumption of using manpower sparingly, improve the material environmental protection, and then improve the holistic productivity effect of enterprise, and because of the narrow and small easy fish tail operating personnel's of problem and the thin sharp in extension spring drag hook both ends that leads to the assembly difficulty of installation space problem when still having solved follow-up installation problem.
The above object of the present invention is achieved by the following technical solutions:
a tension spring comprises a body made of carbon steel wire materials, wherein the body comprises an elastic part, a first connecting rod, a first connecting part, a second connecting rod and a second connecting part; one end of the elastic part is connected with the first connecting rod, and the other end of the elastic part is connected with the second connecting rod; the first connecting rod is connected with the first connecting part; the second connecting rod is connected with the second connecting part;
the free length of the first connecting rod is equal to H1, the free length of the elastic part is equal to H2, the free length of the second connecting rod is equal to H3, and the length of H3 is greater than the sum of the lengths of H1 and H2; the length of H2 is greater than the length of H1;
one end of the first connecting part comprises a first anti-falling part, one end of the second connecting part comprises a second anti-falling part, and the end surfaces of the first anti-falling part and the second anti-falling part are subjected to fillet polishing treatment;
a reinforcing rib is arranged at the connecting position of the first connecting rod and the elastic part, and a reinforcing rib is arranged at the connecting position of the second connecting rod and the elastic part.
Preferably, the first connecting part and the second connecting part are in a non-closed circular ring shape.
Preferably, No. one anti-drop portion is crooked to the inside direction of ring of a connecting portion, No. two anti-drop portions are crooked to the inside direction of ring of No. two connecting portions, and No. one anti-drop portion and No. two anti-drop portions are the barb form.
Preferably, the bending outer diameter of the first connecting part is equal to d1, the bending outer diameter of the second connecting part is equal to d2, and the length of d1 is equal to the length of d 2.
Preferably, the bending direction of the first connecting part is opposite to that of the second connecting part.
Preferably, the inside upper end of ring of a connecting portion is provided with antiskid serration No. one, the inside lower extreme of ring of No. two connecting portions is provided with antiskid serration No. two.
Preferably, the first connecting rod and the second connecting rod are arranged at the central shaft axis extending position of the elastic part.
Preferably, the wire diameter of the connecting rod is 1 mm.
Preferably, the elastic portion has a cylindrical spiral shape.
Preferably, the effective number of turns of the elastic portion is 50.
The invention has the beneficial effects that: compared with the prior art, the utility model discloses a carbon steel wire preparation forms, and the carbon steel wire has elasticity, the advantage that anti stress ability is strong, the effective number of turns of the elasticity portion of body has 50 circles, and the both ends of elasticity portion are connected with the free length H3 that the line footpath is 1 mm's connecting rod and No. two connecting rods is longer than the free length of elasticity portion and a connecting rod sum, set up the connecting rod position like this, under the minimum condition in some extension spring assembly spaces, also can let the assembly personnel easily accomplish the assembly work, reduce the resilient means number of turns simultaneously, when having reduced the consumptive material, increased the pulling force of spring under injecing length, guaranteed the normal closure of oven chamber door, eliminated the potential safety hazard.
In addition, the effective number of turns of the elastic device is 50, the number of turns is set, the production benefit when the elastic device is processed is improved, the labor consumption required by processing products is saved, the connecting parts at the two ends of the tension spring are provided with barbs used for preventing dropping, and the potential safety hazard caused by dropping of the tension spring is increased.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of the present invention.
Fig. 3 is a partially enlarged view a of fig. 1.
The names of the components corresponding to the numerical identifiers in fig. 1 are as follows:
a body-1; an elastic part-2; a first connecting rod-3; a first reinforcing rib-31; connecting rod No. two-4; a second reinforcing rib-41; connecting part I-5; no. one anti-slip serration-51; a first drop prevention portion-52; connecting part II-6; no. two antiskid serration-61; and a second anti-falling part-62.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and in the description of the present invention, it should be noted that:
the term "connected" is to be understood broadly, and may be mechanical or electrical; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements.
The term "free length" refers to the length of the device when no external force is applied;
the term "outer diameter" shall be the diameter of the outer circle of the device;
the term "wire diameter" shall be the diameter of the metal wire;
the term "effective number of turns" shall be taken as the total number of turns of the portion of the spring participating in the deformation;
the specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
The best embodiment of this example is: as shown in fig. 1 and 2, a novel tension spring device comprises a body 1 made of carbon steel wire material, wherein the body 1 comprises an elastic part 2, a first connecting rod 3, a first connecting part 5, a second connecting rod 4 and a second connecting part 6.
Specifically, one end of the elastic part 2 is connected with the first connecting rod 3, and the other end of the elastic part 2 is connected with the second connecting rod 4; the first connecting rod 3 is connected with the first connecting part 5; no. two connecting rod 4 is connected with No. two connecting portion 6, and integrated into one piece's structure is favorable to the processing of equipment and the integrality of finished product.
Specifically, the free length of the first connecting rod 3 is equal to H1, the free length of the elastic part 2 is equal to H2, the free length of the second connecting rod 4 is equal to H3, and the length of H3 is greater than the sum of the lengths of H1 and H2; h2's length is greater than H1's length, sets up its length of connecting rod position and accuracy like this, is favorable to also can let the easy work of accomplishing the assembly of assembler under the minimum condition in some extension spring assembly spaces, saves the consumptive material of processing simultaneously.
Specifically, the one end of connecting portion 5 includes anti-drop portion 52, the one end of connecting portion 6 includes No. two anti-drop portions 62, the terminal surface of an anti-drop portion 52 and No. two anti-drop portions 62 has the radius angle to throw the mill and handle, adds anti-drop portion in the position of the connecting portion of extension spring and can effectively prevent to shine into connecting portion because of the opening of connecting portion and drop, does the radius angle at the position of both ends point and throws the mill and handle simultaneously, prevents sharp position fish tail operating personnel.
Specifically, the hookup location of a connecting rod 3 and elasticity portion 2 is provided with strengthening rib 31 No. one, No. two connecting rods 4 and elasticity portion 2's hookup location is provided with strengthening rib 41 No. two, adds the strengthening rib at the hookup location of connecting rod and elasticity portion 2, is favorable to strengthening hookup location's stability, prevents hookup location's fracture.
Specifically, the first connecting part 5 and the second connecting part 6 are in a non-closed circular ring shape, and the non-closed circular ring shape at the connecting part position is favorable for individual special installation environment and is superior to a fully-closed circular ring connecting part.
Specifically, the first anti-drop part 52 is bent towards the inner direction of the ring of the first connecting part 5, the second anti-drop part 62 is bent towards the inner direction of the ring of the second connecting part 6, and the first anti-drop part 52 and the second anti-drop part 62 are in a barb shape.
Specifically, the bending outer diameter of the first connecting part 5 is equal to d1, the bending outer diameter of the second connecting part 6 is equal to d2, the length of d1 is equal to the length of d2, the same bending outer diameter is beneficial to fixing the same force value by a machine during processing, and alignment deviation is facilitated during measurement.
Specifically, the bending direction of the first connecting part 5 is opposite to that of the second connecting part 6, and the opposite bending directions can increase the firmness and stability of the tension spring assembly.
Specifically, the inside upper end of ring of connecting portion 5 is provided with antiskid serration 51 No. one, the inside lower extreme of ring of connecting portion 6 No. two is provided with antiskid serration 61 No. two, and it is more firm to add antiskid serration extension spring both ends, increases the security of extension spring.
Specifically, a connecting rod 3 and a connecting rod 4 are arranged at the central shaft axis extending position of the elastic part 2, so that the tensile force balance is facilitated, and the tensile force is always in the central shaft position of the elastic part 2 and the connecting rod.
Specifically, the wire diameter of the first connecting rod 3 and the second connecting rod 4 is 1mm, and the connecting rods with the wire diameter size of 1mm are used for preventing the connecting rods from being too thin and broken when accidents such as collision occur.
Specifically, the elastic part 2 is cylindrical and spiral, and the cylindrical and spiral elastic part prevents tensile force from other directions from impacting and permanently deforming.
Specifically, the effective number of turns of the elastic part 2 is 50, so that the waste of consumables due to excessive number of turns is avoided.
The above description specifically describes the preferred embodiments of the present invention, but of course, the present invention can also adopt different forms from the above embodiments, and equivalent changes or corresponding modifications made by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a tension spring which characterized in that: the connecting rod comprises a body (1) made of carbon steel wire materials, wherein the body (1) comprises an elastic part (2), a first connecting rod (3), a first connecting part (5), a second connecting rod (4) and a second connecting part (6); one end of the elastic part (2) is connected with the first connecting rod (3), and the other end of the elastic part (2) is connected with the second connecting rod (4); the first connecting rod (3) is connected with the first connecting part (5); the second connecting rod (4) is connected with the second connecting part (6);
the free length of the first connecting rod (3) is H1, the free length of the elastic part (2) is H2, the free length of the second connecting rod (4) is H3, and the length of H3 is greater than the sum of the lengths of H1 and H2; the length of H2 is greater than the length of H1;
one end of the first connecting part (5) comprises a first anti-falling part (52), one end of the second connecting part (6) comprises a second anti-falling part (62), and the end parts of the first anti-falling part (52) and the second anti-falling part (62) are provided with semicircular chamfers;
the connecting position of a connecting rod (3) and an elastic part (2) is provided with a reinforcing rib (31), and the connecting position of a second connecting rod (4) and the elastic part (2) is provided with a second reinforcing rib (41).
2. The extension spring of claim 1, wherein: the first connecting part (5) and the second connecting part (6) are in a non-closed circular ring shape.
3. The extension spring of claim 2, wherein: no. one anti-drop portion (52) are crooked to the inside direction of ring of a connecting portion (5), No. two anti-drop portions (62) are crooked to the inside direction of ring of No. two connecting portions (6), and a anti-drop portion (52) and No. two anti-drop portions (62) are barb form.
4. The extension spring of claim 3, wherein: the bending outer diameter of the connecting part I (5) is equal to d1, the bending outer diameter of the connecting part II (6) is equal to d2, and the length of d1 is equal to the length of d 2.
5. The extension spring of claim 4, wherein: the bending direction of the first connecting part (5) is opposite to that of the second connecting part (6).
6. The extension spring of claim 5, wherein: the inner upper end of the ring of the first connecting part (5) is provided with a first anti-skidding serration (51), and the inner lower end of the ring of the second connecting part (6) is provided with a second anti-skidding serration (61).
7. The extension spring of claim 6, wherein: the first connecting rod (3) and the second connecting rod (4) are arranged at the axial extension position of the central shaft of the elastic part (2).
8. The extension spring of claim 7, wherein: the wire diameter of the first connecting rod (3) and the second connecting rod (4) is 1 mm.
9. The extension spring of claim 8, wherein: the elastic part (2) is cylindrical and spiral.
10. The extension spring of claim 9, wherein: the effective number of turns of the elastic part (2) is 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922446736.2U CN211501429U (en) | 2019-12-30 | 2019-12-30 | Tension spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922446736.2U CN211501429U (en) | 2019-12-30 | 2019-12-30 | Tension spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501429U true CN211501429U (en) | 2020-09-15 |
Family
ID=72395691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922446736.2U Active CN211501429U (en) | 2019-12-30 | 2019-12-30 | Tension spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501429U (en) |
-
2019
- 2019-12-30 CN CN201922446736.2U patent/CN211501429U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: One of the fifth floors, No. 389, Dongfu 3rd Road, Dongfeng Town, Zhongshan City, Guangdong Province, 528400 (Residence declaration) Patentee after: Guangdong Zhongchao Spring Co.,Ltd. Address before: 528400 Haotong Road, Minle Industrial Zone, Dongfeng Town, Zhongshan City, Guangdong Province Patentee before: ZHONGSHAN ZHONGCHAO ELECTRONICS CO.,LTD. |
|
| CP03 | Change of name, title or address |