CN109363406B - Production process of inner support rod of handrail - Google Patents
Production process of inner support rod of handrail Download PDFInfo
- Publication number
- CN109363406B CN109363406B CN201811294731.6A CN201811294731A CN109363406B CN 109363406 B CN109363406 B CN 109363406B CN 201811294731 A CN201811294731 A CN 201811294731A CN 109363406 B CN109363406 B CN 109363406B
- Authority
- CN
- China
- Prior art keywords
- strip
- shaped
- shaped connecting
- handrail
- support rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/54—Supports for the arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention belongs to the technical field of chair accessories, and particularly relates to a production process of an inner support rod of a handrail. The technical problems that the design is unreasonable and the like in the prior art are solved. The production process of the inner support rod of the handrail comprises the following steps: s1, processing an L-shaped bent pipe and a strip-shaped connecting plate; s2, welding a nut; s3, clamping the middle part of the strip-shaped connecting plate in the positioning groove, inserting a fastener into the stepped hole in the middle part of the strip-shaped connecting plate, enabling the fastener to extend into the nut and be in threaded connection with the nut, and enabling the strip-shaped connecting plate and the U-shaped connecting part to be distributed in a cross shape, namely, manufacturing the inner support rod of the handrail. The invention has the advantages that: the assembling efficiency can be improved.
Description
Technical Field
The invention belongs to the technical field of chair accessories, and particularly relates to a production process of an inner support rod of a handrail.
Background
The chair is a seat.
The structure of the chair comprises chair supporting feet, a backrest, a seat board, armrests and the like.
In the field of armrests of swivel chairs, plastic sleeves and metal inner supports are generally adopted to be assembled into armrests by adopting the production process of the supporting rods in the armrests. The production process of the inner handrail supporting rod is generally made of metal pipes, and the inner handrail supporting rod is inserted into a plastic sleeve and then connected with a handrail plate, so that the handrail plate is fixed.
The production process of the inner supporting rod of the handrail adopts the connecting plate for connection when the inner supporting rod is connected with the handrail plate.
The existing assembly process is as follows: the production process of the L-shaped handrail inner supporting rod is inserted into the plastic sleeve, and the connecting plate is welded at one end of the L-shaped handrail inner supporting rod inserted into the plastic sleeve, so that the structure has the defects that:
in the process of inserting and before inserting, the connecting plate at this moment is easy to be impacted and deformed, so that subsequent accurate assembly cannot be realized, and the assembly efficiency is invisibly reduced.
Disclosure of Invention
The invention aims to solve the problems and provides a production process of an inner support rod of a handrail, which can improve the assembly efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme: the production process of the inner support rod of the handrail comprises the following steps:
s1, processing an L-shaped bent pipe, taking a metal pipe, horizontally fixing the metal pipe, processing a U-shaped connecting part at one end of the metal pipe and a plurality of punched connecting positioning holes on the U-shaped connecting part by adopting a forming die, milling a positioning groove at the other end of the metal pipe, and bending the middle part of the metal pipe by 90 degrees to obtain the L-shaped bent pipe;
processing a strip-shaped connecting plate, taking a metal plate, processing at least one strip-shaped plate by adopting a stamping die, processing nail passing holes at two ends of the strip-shaped plate by adopting a punching die, and processing a stepped hole in the middle of the strip-shaped plate;
s2, welding a nut, and fixing the thread inside one end of the L-shaped bent pipe far away from the U-shaped connecting part in a welding manner;
s3, clamping the middle part of the strip-shaped connecting plate in the positioning groove, inserting a fastener into the stepped hole in the middle part of the strip-shaped connecting plate, enabling the fastener to extend into the nut and be in threaded connection with the nut, and enabling the strip-shaped connecting plate and the U-shaped connecting part to be distributed in a cross shape, namely, manufacturing the inner support rod of the handrail.
And S4, performing surface coating processing on the inner support rod of the handrail.
The structure of the locating slot collaborative fastener and the bar connecting plate of design, it can ensure that bar connecting plate and U-shaped connecting portion are the cross and distribute, simultaneously, can also avoid because deformation when carrying and inserting to the plastic sheath damages, has improved packaging efficiency in the intangible, and the design is more reasonable.
In the production process of the inner handrail support rod, the inner handrail support rod comprises an L-shaped bent pipe, a U-shaped connecting part is formed at the lower end of the L-shaped bent pipe, a positioning groove is formed in the end face of the upper end of the L-shaped bent pipe, a nut is fixed inside the upper end of the L-shaped bent pipe, the inner handrail support rod further comprises a bar-shaped connecting plate, the bar-shaped connecting plate is clamped in the positioning groove, a fastener in threaded connection with the nut is arranged in the middle of the bar-shaped connecting plate in a penetrating mode, the thickness of the bar-shaped connecting plate is equal to or larger than the depth of the positioning groove, nail passing holes are formed in two ends of the bar-shaped connecting plate respectively, and the bar-shaped connecting plate and the U-shaped connecting part are distributed in a cross shape.
The structure of the locating slot collaborative fastener and the bar connecting plate of design, it can ensure that bar connecting plate and U-shaped connecting portion are the cross and distribute, simultaneously, can also avoid because deformation when carrying and inserting to the plastic sheath damages, has improved packaging efficiency in the intangible, and the design is more reasonable.
In the production process of the inner support rod of the handrail, the positioning grooves are in clearance fit with the strip-shaped connecting plates.
The structure can facilitate installation and construction.
In the production process of the inner support rod of the handrail, the nail passing hole is any one or combination of a kidney-shaped hole and a circular hole.
In the production process of the inner support rod of the handrail, the middle part of the strip-shaped connecting plate is provided with a stepped hole, and the cap end of the fastener is sunk into the stepped hole.
This configuration avoids cap end interference.
In the production process of the inner support rod of the handrail, the nut is connected with the L-shaped bent pipe in a welding mode.
The welding connection can ensure the strength of the connection structure.
In the production process of the support rod in the handrail, the U-shaped connecting part is provided with a plurality of connecting and positioning holes.
A plurality of spot welding areas are arranged on the U-shaped connecting part.
In the production process of the inner support rod of the handrail, the connecting and positioning hole is any one or combination of a kidney-shaped hole and a circular hole.
In the production process of the inner support rod of the handrail, the L-shaped bent pipe is formed by bending a metal pipe.
In the production process of the inner support rod of the handrail, the strip-shaped connecting plate is made of a metal plate through stamping.
Compared with the prior art, the production process of the inner support rod of the handrail has the advantages that:
the structure of the locating slot collaborative fastener and the bar connecting plate of design, it can ensure that bar connecting plate and U-shaped connecting portion are the cross and distribute, simultaneously, can also avoid because deformation when carrying and inserting to the plastic sheath damages, has improved packaging efficiency in the intangible, and the design is more reasonable.
Drawings
FIG. 1 is a schematic diagram of the structure provided by the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic diagram of a transverse cross-sectional structure of the U-shaped connecting part provided by the invention.
Fig. 4 is a schematic view of another structure of the viewing angle provided by the present invention.
In the figure, an L-shaped bent pipe b1, a U-shaped connecting part b11, a connecting positioning hole b111, a positioning groove b12, a nut b2, a strip-shaped connecting plate b3, a nail passing hole b31 and a fastener b 4.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in the figures 1-4 of the drawings,
the production process of the inner support rod of the handrail comprises an L-shaped bent pipe b1, wherein the L-shaped bent pipe b1 is formed by bending a metal pipe.
A U-shaped connecting portion b11 is formed at the lower end of the L-shaped bent pipe b1, and a plurality of connecting positioning holes b111 are provided in the U-shaped connecting portion b 11. The connecting positioning hole b111 is any one or the combination of a waist-shaped hole and a circular hole.
Be equipped with constant head tank b12 on the upper end terminal surface of L-shaped return bend b1, be fixed with nut b2 in L-shaped return bend b 1's upper end inside, this bracing piece still includes bar connecting plate b3, bar connecting plate b3 block in constant head tank b12 and wear to be equipped with in the middle part of bar connecting plate b3 with nut b2 threaded connection's fastener b4, fastener b4 is the bolt or the screw of interior cross recess, bar connecting plate b3 thickness be equal to or be greater than the groove depth of constant head tank b12, be equipped with respectively at the both ends of bar connecting plate b3 and cross nail hole b31, bar connecting plate b3 and U-shaped connecting portion b11 be the cross distribution.
The positioning groove b12 is in clearance fit with the strip-shaped connecting plate b 3.
The nail passing hole b31 is any one or combination of a kidney-shaped hole and a circular hole.
The middle part of the strip-shaped connecting plate b3 is provided with a stepped hole, and the cap end of the fastener b4 is sunk into the stepped hole.
The nut b2 is connected with the L-shaped bent pipe b1 in a welding mode.
The strip-shaped connecting plate b3 is made of a metal sheet through stamping.
The production process of the inner support rod of the handrail comprises the following steps:
s1, processing an L-shaped bent pipe b1, taking a metal pipe, horizontally fixing the metal pipe, processing a U-shaped connecting part b11 at one end of the metal pipe by adopting a forming die, punching a plurality of connecting positioning holes b111 on the U-shaped connecting part b11, milling a positioning groove b12 at the other end of the metal pipe, and bending the middle part of the metal pipe by 90 degrees to obtain the L-shaped bent pipe;
processing a strip-shaped connecting plate b3, taking a metal plate, processing at least one strip-shaped plate by adopting a stamping die, processing nail passing holes b31 at two ends of the strip-shaped plate by adopting a punching die, and processing a stepped hole in the middle of the strip-shaped plate;
s2, welding a nut, and fixing the thread in the end of the L-shaped bent pipe far away from the U-shaped connecting part b11 in a welding manner;
s3, clamping the middle part of the strip-shaped connecting plate b3 in a positioning groove b12, inserting a fastener into a stepped hole in the middle part of the strip-shaped connecting plate b3, enabling the fastener to extend into a nut and be in threaded connection with the nut, and enabling the strip-shaped connecting plate b3 and the U-shaped connecting part b11 to be distributed in a cross shape, namely the production process of the inner support rod of the handrail is obtained.
S4, carrying out surface coating processing on the production process of the inner support rod of the handrail. The plating layer is a bluing layer.
The upper surface of the strip-shaped connecting plate b3 is flush with the end surface of one end of the L-shaped bent pipe, which is provided with a positioning groove.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (6)
1. The production process of the inner support rod of the handrail is characterized by comprising the following steps of: s1, processing an L-shaped bent pipe (b1), taking a metal pipe, horizontally fixing the metal pipe, processing a U-shaped connecting part (b11) at one end of the metal pipe by adopting a forming die, processing a plurality of punching connecting positioning holes (b111) on the U-shaped connecting part (b11), milling a positioning groove (b12) at the other end of the metal pipe, and bending the middle part of the metal pipe by 90 degrees to obtain the L-shaped bent pipe;
processing a strip-shaped connecting plate (b3), taking a metal plate, processing at least one strip-shaped plate by adopting a stamping die, processing nail passing holes (b31) at two ends of the strip-shaped plate by adopting a punching die, and processing a stepped hole in the middle of the strip-shaped plate;
s2, welding a nut, and welding and fixing the threads inside one end of the L-shaped bent pipe far away from the U-shaped connecting part (b 11);
s3, clamping the middle part of the strip-shaped connecting plate (b3) in a positioning groove (b12), inserting a fastener into a stepped hole in the middle part of the strip-shaped connecting plate (b3), wherein the fastener extends into a nut and is in threaded connection with the nut, and the strip-shaped connecting plate (b3) and the U-shaped connecting part (b11) are distributed in a cross shape, namely, the inner support rod of the handrail is manufactured.
2. The process for producing an inner support bar for an armrest as claimed in claim 1, further comprising the steps of: and S4, performing surface coating processing on the inner support rod of the handrail.
3. The process for producing an inner support bar for armrests according to claim 1, wherein the thickness of the strip-shaped connecting plate (b3) is equal to or greater than the groove depth of the positioning groove (b 12).
4. The process for producing the support rod in the handrail as claimed in claim 1, wherein the positioning groove (b12) is in clearance fit with the strip-shaped connecting plate (b 3).
5. The process for producing the support rod in the handrail as claimed in claim 1, wherein the nut (b2) is welded to the L-shaped elbow (b 1).
6. The process for manufacturing the inner support rod of the handrail as claimed in claim 2, wherein the plating layer is a bluing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294731.6A CN109363406B (en) | 2018-11-01 | 2018-11-01 | Production process of inner support rod of handrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294731.6A CN109363406B (en) | 2018-11-01 | 2018-11-01 | Production process of inner support rod of handrail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109363406A CN109363406A (en) | 2019-02-22 |
| CN109363406B true CN109363406B (en) | 2021-07-30 |
Family
ID=65397370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811294731.6A Active CN109363406B (en) | 2018-11-01 | 2018-11-01 | Production process of inner support rod of handrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109363406B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090006594U (en) * | 2007-12-27 | 2009-07-01 | 허현중 | a chair of an elbow rest |
| DE202011105796U1 (en) * | 2011-09-16 | 2011-11-15 | Rüdiger Busse | upholstered furniture |
| CN203283067U (en) * | 2013-04-23 | 2013-11-13 | 安徽大为汽车配件有限公司 | Handrail for passenger car |
| CN203565633U (en) * | 2013-09-30 | 2014-04-30 | 罗定市恒兆蒸笼有限公司 | Ejector rod structure for food steamer lid processing device |
| CN203872526U (en) * | 2014-03-13 | 2014-10-15 | 重庆市神牛机械制造有限责任公司 | Adjustable mini-tiller armrest device |
| CN105033579A (en) * | 2015-07-07 | 2015-11-11 | 安徽华胤家具有限公司 | Processing technology for aluminum alloy armrests of chair |
| CN205495073U (en) * | 2016-04-06 | 2016-08-24 | 许锦荣 | A filter cage for sewage treatment cell -in mouth of a river department |
| CN205615651U (en) * | 2015-12-30 | 2016-10-05 | 天津起源创意泽众广告有限公司 | Novel rest handle |
| CN205696663U (en) * | 2016-04-22 | 2016-11-23 | 青岛海容商用冷链股份有限公司 | Refrigerator push and pull bar |
| CN205801317U (en) * | 2016-06-22 | 2016-12-14 | 天津市四海亨通自行车有限公司 | A kind of bicycle use front seat for children |
| CN205888426U (en) * | 2016-07-08 | 2017-01-18 | 重庆市地泽机械有限责任公司 | Motorcycle back bar welding frock |
| CN106925647A (en) * | 2017-04-25 | 2017-07-07 | 刘鹏 | One kind intersects combined type U-tube solar heat exchanger bending machine |
| CN207110439U (en) * | 2017-08-05 | 2018-03-16 | 滁州金诚金属制品有限公司 | A kind of connection ladder on scaffold |
| CN207953032U (en) * | 2018-01-16 | 2018-10-12 | 浙江君鸿机械有限公司 | A kind of motorcycle back elbow rest welding tooling |
-
2018
- 2018-11-01 CN CN201811294731.6A patent/CN109363406B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090006594U (en) * | 2007-12-27 | 2009-07-01 | 허현중 | a chair of an elbow rest |
| DE202011105796U1 (en) * | 2011-09-16 | 2011-11-15 | Rüdiger Busse | upholstered furniture |
| CN203283067U (en) * | 2013-04-23 | 2013-11-13 | 安徽大为汽车配件有限公司 | Handrail for passenger car |
| CN203565633U (en) * | 2013-09-30 | 2014-04-30 | 罗定市恒兆蒸笼有限公司 | Ejector rod structure for food steamer lid processing device |
| CN203872526U (en) * | 2014-03-13 | 2014-10-15 | 重庆市神牛机械制造有限责任公司 | Adjustable mini-tiller armrest device |
| CN105033579A (en) * | 2015-07-07 | 2015-11-11 | 安徽华胤家具有限公司 | Processing technology for aluminum alloy armrests of chair |
| CN205615651U (en) * | 2015-12-30 | 2016-10-05 | 天津起源创意泽众广告有限公司 | Novel rest handle |
| CN205495073U (en) * | 2016-04-06 | 2016-08-24 | 许锦荣 | A filter cage for sewage treatment cell -in mouth of a river department |
| CN205696663U (en) * | 2016-04-22 | 2016-11-23 | 青岛海容商用冷链股份有限公司 | Refrigerator push and pull bar |
| CN205801317U (en) * | 2016-06-22 | 2016-12-14 | 天津市四海亨通自行车有限公司 | A kind of bicycle use front seat for children |
| CN205888426U (en) * | 2016-07-08 | 2017-01-18 | 重庆市地泽机械有限责任公司 | Motorcycle back bar welding frock |
| CN106925647A (en) * | 2017-04-25 | 2017-07-07 | 刘鹏 | One kind intersects combined type U-tube solar heat exchanger bending machine |
| CN207110439U (en) * | 2017-08-05 | 2018-03-16 | 滁州金诚金属制品有限公司 | A kind of connection ladder on scaffold |
| CN207953032U (en) * | 2018-01-16 | 2018-10-12 | 浙江君鸿机械有限公司 | A kind of motorcycle back elbow rest welding tooling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109363406A (en) | 2019-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106907567B (en) | Profile reinforced connection structural member | |
| CN109363406B (en) | Production process of inner support rod of handrail | |
| CN219117574U (en) | Electrolytic cell | |
| CN218635613U (en) | Aluminum drawer for cabinet | |
| CN206516279U (en) | LED display installation frame structure | |
| CN108400525B (en) | Corner bracket and switch cabinet using same | |
| CN212599487U (en) | Forming extrusion screw tap with multi-edge surface | |
| CN109106123B (en) | Armrest manufacturing process | |
| CN210857492U (en) | Fabricated building structure system | |
| CN209121628U (en) | Handrail inner bracing piece | |
| CN218404480U (en) | Electroplating tool for long pipe parts | |
| CN210918684U (en) | Aluminum profile section structure of longitudinal beam of greenhouse door | |
| CN218651037U (en) | Assembled chair | |
| CN205947484U (en) | Install mounting structure of steel ball slide rail fast | |
| CN215759643U (en) | Novel cable clamp | |
| CN219987294U (en) | Positioning tool for water cutting forging | |
| CN218219648U (en) | Chair leg pipe, chair leg and chair | |
| CN109288300A (en) | Handrail inner bracing piece | |
| CN204597224U (en) | A kind of Novel distribution cabinet crossbeam | |
| CN210067623U (en) | Wind-resistant guardrail stand of inside enhancement | |
| CN219335621U (en) | Inlay type welding die punch | |
| CN220312292U (en) | Tool positioning block for welding metal rod piece | |
| CN217610172U (en) | Iron plate chair leg and chair | |
| CN210353952U (en) | Seat support frame and seat | |
| CN210502371U (en) | Connecting plate for connecting angle adjuster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |