CN2802164Y - Cold-forging die strong beam formed connecting screw - Google Patents
Cold-forging die strong beam formed connecting screw Download PDFInfo
- Publication number
- CN2802164Y CN2802164Y CN 200520059691 CN200520059691U CN2802164Y CN 2802164 Y CN2802164 Y CN 2802164Y CN 200520059691 CN200520059691 CN 200520059691 CN 200520059691 U CN200520059691 U CN 200520059691U CN 2802164 Y CN2802164 Y CN 2802164Y
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- China
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- screw rod
- spiral shell
- cold
- forging die
- connecting screw
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Abstract
The utility model relates to the technical field of connecting screw rods, particularly a connecting screw rod formed via a cold-forging die and strong beams and used in furniture connecting devices. The utility model comprises a screw cap, a screw neck, a screw body and a screw rod, wherein a plurality of grooves are concavely evenly distributed on the screw body along the axial direction; a square end surface on one end of each groove is level to the screw rod near the screw neck, and an arced end surface on the other end of the groove is near the screw rod. After the structure is adopted, raw material is saved because the screw body is dented with the grooves and the structure does not affect the strength of the screw rod. Thus, the screw rod of the utility model can cause metallic surfaces to generate cold hardening simultaneously when saving cost, so that metallic compact degree is increased and mechanical strength is obviously increased.
Description
Technical field
The utility model relates to the connecting screw rod technical field, refers in particular to a kind of connecting screw rod of the cold-forging die intense beam moulding of using in the furniture connection set.
Technical background
In being connected of the transverse slat of furniture and stringer board, a kind of eccentric disc that comprises is arranged, connecting screw rod, the connection set that the plastic cement nut is formed, also claim three-in-one assembly parts, when this furniture connection set uses, at first on longitudinal plate, stamp a transverse holes, imbed a plastic cement nut that mates with the connecting screw rod screw thread, and with in the connecting screw rod connection, as the screw rod end is the wood snail line, then need not the plastic cement nut, then on horizontal plate, each makes a call to the vertical hole and the transverse holes that interconnect, inserts eccentric disc in vertical hole, and transverse holes stretches through for connecting screw rod, the head of connecting screw rod is buckled in the eccentric grove of eccentric disc, can finishes dismounting with screw-driver turn eccentric disc.Connecting screw rod in the above-mentioned connection set owing to be subjected to the restriction of process conditions, is normally made with the metal bar cutting, and it is concentrated and damage that this kind processing mode easily makes the junction of screw rod produce stress.
The connecting screw rod of a kind of furniture connection set that is disclosed in Chinese patent application number " 200420046397.X " claimant Mr.'s Zhong Junfei the application documents has adopted the technology of cold-forging die intense beam moulding, can address the above problem.Yet in the connecting screw rod of common cold-forging die intense beam moulding, its shaft mostly is cylindric usually, and its metal consumptive material has accounted for the significant proportion of the cost of raw material.
Summary of the invention
The purpose of this utility model is exactly the connecting screw rod of a kind of cost that saves material of providing at the deficiencies in the prior art part, rational in infrastructure, cold-forging die intense beam moulding that mechanical strength is high.
For achieving the above object, the utility model includes nut, spiral shell neck, spiral shell body and screw rod, and evenly distributing vertically on one's body at spiral shell is concaved with several grooves, and this groove one end face is held level with both hands together with the spiral shell body one near the spiral shell neck, and this groove other end is near the screw rod position.
Described groove is the groove of parallel band shape.
The angle that is connected the connecting part of described spiral shell neck and spiral shell body can be 90 degree～150 degree.
Described spiral shell body diameter of section is 3mm～12mm.
Described spiral shell body diameter of section is 1.8～2.8 times of spiral shell throat area diameter.Described screw rod is provided with screw thread.
The diameter of section of described spiral shell body is 1.1～1.6 times of screw rod diameter of section.
The angle of the junction of described spiral shell body and screw rod is the right angle.
After adopting said structure,, saved raw material, and this structure does not influence the intensity of screw rod owing to be arranged with some grooves on one's body at spiral shell; In addition, the angle of the connecting part of spiral shell neck and spiral shell body can be 90 and spends to 150 degree, spiral shell body diameter of section is 1.8 times to 2.8 times of spiral shell throat area diameter, adopting above-mentioned data to carry out the moulding of cold-forging die intense beam just can make the intensity of screw rod and cost reach suitable ratio, therefore, screw rod of the present utility model produces flow harden in the cost-effective metal surface that also makes simultaneously, and the metal compaction degree increases, and mechanical strength obviously increases.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structural representation.
Fig. 2 uses novel a kind of embodiment's perspective view for this.
Fig. 3 is the structural representation of eccentric disc in the furniture connection set.
Fig. 4 is the usage mode schematic representation of furniture connection set.
Embodiment
Shown in accompanying drawing 1～2: the utility model includes: nut 11, spiral shell neck 12, spiral shell body 13 and screw rod 14, on spiral shell body 13, evenly distribute vertically and be concaved with several grooves 131, these groove 131 1 end faces are held level with both hands together with the spiral shell body 13 1 near spiral shell neck 12, and these groove 131 other ends are near screw rod 14 positions.Described groove 131 is the groove of parallel band shape.The angle that is connected the connecting part of described spiral shell neck 12 and spiral shell body 13 can be 90 degree～150 degree.Described spiral shell body 13 diameter of sections are 3mm～12mm.Described spiral shell body 13 diameter of sections are 1.8～2.8 times of spiral shell neck 12 diameter of sections.Described screw rod 14 is provided with screw thread.The diameter of section of described spiral shell body 13 is 1.1～1.6 times of screw rod 14 diameter of sections.Described spiral shell body 13 is the right angle with the angle of the junction of screw rod 14.
During use, as the eccentric disc among Fig. 3 23, the opening slot 24 that the radially outer bead of this eccentric disc 23 offers ccontaining connecting screw rod spiral shell neck 12 and nut 11 is fastened; Again as shown in Figure 4, when furniture connects use, at first on longitudinal plate 21, make a call to a transverse holes, imbed a plastic cement nut that is complementary with the connecting screw rod screw thread, and with in the connecting screw rod connection, as the screw rod end is the wood snail line, then need not the plastic cement nut, then on horizontal plate 22, each makes a call to the vertical hole and the transverse holes that are interconnected, inserts eccentric disc 23 in vertical hole, and transverse holes stretches through for connecting spiral shell body 13, the nut 11 of connecting screw rod is buckled in 24 li of the opening slots of eccentric disc, can finishes dismounting with screw-driver turn eccentric disc.
After adopting said structure,, saved raw material, and this structure does not influence the intensity of screw rod owing to be arranged with some grooves on one's body at spiral shell; Therefore, screw rod of the present utility model produces flow harden in the cost-effective metal surface that also makes simultaneously, and the metal compaction degree increases, and mechanical strength obviously increases.
Claims (8)
1, the connecting screw rod of a kind of cold-forging die intense beam moulding, include nut (11), spiral shell neck (12), spiral shell body (13) and screw rod (14), it is characterized in that: evenly distributing vertically on spiral shell body (13) is concaved with several grooves (131), these groove (131) one end faces are held level with both hands together with the spiral shell body (13) near spiral shell neck (12), and this groove (131) other end is near screw rod (14) position.
2, the connecting screw rod of a kind of cold-forging die intense beam according to claim 1 moulding is characterized in that: described groove (131) is the groove of parallel band shape.
3, the connecting screw rod of a kind of cold-forging die intense beam according to claim 1 moulding is characterized in that: the angle that is connected the connecting part of described spiral shell neck (12) and spiral shell body (13) can be 90 degree～150 degree.
4, the connecting screw rod of a kind of cold-forging die intense beam according to claim 1 moulding is characterized in that: described spiral shell body (13) diameter of section is 3mm～12mm.
5, the connecting screw rod of a kind of cold-forging die intense beam according to claim 1 moulding is characterized in that: described spiral shell body (13) diameter of section is 1.8～2.8 times of spiral shell neck (12) diameter of section.
6, the connecting screw rod of a kind of cold-forging die intense beam according to claim 1 moulding is characterized in that: described screw rod (14) is provided with screw thread.
7, the connecting screw rod of a kind of cold-forging die intense beam according to claim 1 moulding is characterized in that: the diameter of section of described spiral shell body (13) is 1.1～1.6 times of screw rod (14) diameter of section.
8, the connecting screw rod of a kind of cold-forging die intense beam according to claim 1 moulding is characterized in that: described spiral shell body (13) is the right angle with the angle of the junction of screw rod (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520059691 CN2802164Y (en) | 2005-06-15 | 2005-06-15 | Cold-forging die strong beam formed connecting screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520059691 CN2802164Y (en) | 2005-06-15 | 2005-06-15 | Cold-forging die strong beam formed connecting screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802164Y true CN2802164Y (en) | 2006-08-02 |
Family
ID=36846872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520059691 Expired - Fee Related CN2802164Y (en) | 2005-06-15 | 2005-06-15 | Cold-forging die strong beam formed connecting screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802164Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279216A (en) * | 2014-09-17 | 2015-01-14 | 常州市家虹包装有限公司 | Furniture connector |
| CN114318996A (en) * | 2022-01-26 | 2022-04-12 | 中国电建集团昆明勘测设计研究院有限公司 | Airport assembled prestressed pavement structure with composite connection mode and installation method |
| CN114318997A (en) * | 2022-01-26 | 2022-04-12 | 中国电建集团昆明勘测设计研究院有限公司 | Airport assembled pavement structure adopting mortise-tenon joint |
-
2005
- 2005-06-15 CN CN 200520059691 patent/CN2802164Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279216A (en) * | 2014-09-17 | 2015-01-14 | 常州市家虹包装有限公司 | Furniture connector |
| CN114318996A (en) * | 2022-01-26 | 2022-04-12 | 中国电建集团昆明勘测设计研究院有限公司 | Airport assembled prestressed pavement structure with composite connection mode and installation method |
| CN114318997A (en) * | 2022-01-26 | 2022-04-12 | 中国电建集团昆明勘测设计研究院有限公司 | Airport assembled pavement structure adopting mortise-tenon joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 Termination date: 20120615 |