CN111468895A - Method for manufacturing tent bracket - Google Patents
Method for manufacturing tent bracket Download PDFInfo
- Publication number
- CN111468895A CN111468895A CN202010283084.XA CN202010283084A CN111468895A CN 111468895 A CN111468895 A CN 111468895A CN 202010283084 A CN202010283084 A CN 202010283084A CN 111468895 A CN111468895 A CN 111468895A
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- pipe
- manufacturing
- tent
- mounting seat
- groups
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
- E04H15/34—Supporting means, e.g. frames
- E04H15/44—Supporting means, e.g. frames collapsible, e.g. breakdown type
- E04H15/48—Supporting means, e.g. frames collapsible, e.g. breakdown type foldable, i.e. having pivoted or hinged means
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Tents Or Canopies (AREA)
Abstract
The invention discloses a method for manufacturing a tent bracket, which is used for manufacturing the tent bracket, wherein the tent bracket comprises a plurality of groups of folding supporting rods, and two adjacent groups of folding supporting rods are movably sleeved; each group of folding supporting rods comprises an inner pipe and an outer pipe; the outer wall of one section of the inner pipe is provided with a plurality of groups of concave points, the section of the inner pipe provided with the concave points is fixedly sleeved with the inner cavity of the outer pipe, and the other section of the inner pipe not provided with the concave points is movably sleeved with the outer pipe in the other group of the folding supporting rods; the manufacturing method of the tent support comprises the following steps of firstly, preparing an outer pipe and an inner pipe; secondly, punching a plurality of groups of concave point groups on the surface of the prepared inner tube; assembling an outer pipe and an inner pipe in the folding support rod; and fourthly, the elastic ropes are connected with the folding support rods. The tent support manufactured by the manufacturing method has the characteristics of convenience in folding, small containing space, convenience in assembly, difficulty in rusting and corrosion and stability in connection.
Description
Technical Field
The invention relates to the field of tent accessories, in particular to a manufacturing method of a tent bracket.
Background
A conventional tent support, which is disclosed in patent No. 2003201262761, is composed of a plurality of outer tubes 2, and as shown in fig. 1, two outer tubes 2 are connected with each other by an inner tube 1; the inner tube 1 is penetrated in the inner cavity of the outer tube 2, one end of the inner tube 1 is fixedly connected with one group of outer tubes 2, and the other end of the inner tube 1 is movably connected with the other group of outer tubes 2; the assembly process is as follows: one end of an inner tube 1 is sleeved in an inner cavity of an outer tube 2, a plurality of concave points 3 are punched on the outer wall of the sleeved outer tube 2, the outer tube 2 and the inner tube 1 are deformed through the punched concave points 3, and the outer tube and the inner tube are fixedly connected together; meanwhile, in order to prevent the pipe body from being oxidized and corroded, the surface of the pipe body is coated with an anti-oxidation, anti-rust and anti-corrosion coating, the sleeved pipe body is directly arranged in the external environment and can be subjected to wind, rain and rain, the concave points 3 are arranged on the outer wall of the sleeved pipe body, the arranged concave points 3 can damage the coating, and water is easily accumulated at the concave points 3, so that the concave points 3 of the outer pipe 2 are easily oxidized and corroded, and the outer pipe 2 generates rust; therefore, the method for arranging the concave points 3 on the outer pipe 2 has the defects that the pipe body is easy to rust and the connection is not stable after a long time.
Still another fixed connection mode of inner tube 1 and outer tube 2 does: adopt two kinds of bodys after glue will cup joint to carry out fixed connection, use glue can appear oxidizing for a long time, its viscidity can lose, simultaneously because the clearance between inner tube 1 and the outer tube 2 is less, adhesion glue between the two is thinner, and the adhesive force is weaker, also has the shortcoming that glue distributes unevenly simultaneously.
In view of the above problems, the present invention provides a method for manufacturing a tent frame, and the tent frame is produced accordingly.
Disclosure of Invention
The invention provides a method for manufacturing a tent bracket, which is simple and convenient to operate, and the tent bracket manufactured by the manufacturing method has the characteristics of convenience in folding, small accommodating space, convenience in assembly, difficulty in rusting and corrosion and stability in connection; specifically, the invention is realized by the following technical scheme:
a method for manufacturing a tent bracket is used for manufacturing the tent bracket, the tent bracket comprises a plurality of groups of folding supporting rods, and two adjacent groups of folding supporting rods are movably sleeved; each group of folding supporting rods comprises an inner pipe and an outer pipe; the outer wall of one section of the inner pipe is provided with a plurality of groups of concave points, the section of the inner pipe provided with the concave points is fixedly sleeved with the inner cavity of the outer pipe, and the other section of the inner pipe not provided with the concave points is movably sleeved with the outer pipe in the other group of the folding supporting rods; the manufacturing method of the tent bracket comprises the following steps,
preparing an outer pipe and an inner pipe;
secondly, punching a plurality of groups of concave point groups on the surface of the prepared inner tube;
assembling an outer pipe and an inner pipe in the folding support rod;
and fourthly, the elastic ropes are connected with the folding support rods.
Further, in the first step, the blank with the holes punched is heated firstly, then the blank is extruded, the extruded pipe body is subjected to heat treatment, then the pipe is rolled, the pipe body after the pipe rolling is subjected to cold drawing, the stretched pipe body is quenched, then the artificial aging is carried out, finally the processed pipe body is cut according to the size, and the surface of the cut pipe body is sprayed with the antioxidant coating
Further, in the third step, inserting the section of the inner pipe with the concave points into the inner cavity of the outer pipe to form primary assembly, placing the inner pipe and the outer pipe after the primary assembly on a pipe pressing machine, starting the pipe pressing machine, completely pressing the section of the inner pipe with the concave points into the outer pipe, and completing the assembly of the group of folding support rods
And further, in the fourth step, all the groups of the folding support rods which are connected in a pressing mode are connected in series in sequence through the elastic ropes, and the two ends of each elastic rope are fixedly connected with the outer pipes at the head end and the tail end of the tent support through the fixing caps respectively.
Further, the tube rolling process is performed twice.
Further, the cold drawing process was performed six times.
Further, the pipe pressing machine comprises a push rod, a front section installation seat, a middle section installation seat, a rear section installation seat and a slide rail; the middle section mounting seat and the rear section mounting seat are mounted on the slide rail and can move along the slide rail; the push rod, the front section mounting seat, the middle section mounting seat and the rear section mounting seat are sequentially and horizontally mounted, and the push rod, the front section mounting seat, the middle section mounting seat and the rear section mounting seat are positioned on a straight line; the anterior segment mount pad is used for placing the junction of outer tube and inner tube, and the middle section mount pad is used for placing the middle part of outer tube, and the back end mount pad is used for placing the terminal position of outer tube.
Further, the middle section mount pad includes base and flip, and the base is used for placing the outer tube, and flip is used for withholding the outer tube locking, prevents to press the pipe in-process, and the outer tube takes place to remove.
Further, the concave point groups are arranged along the axial direction of the inner pipe; each group of concave point groups comprises two concave points which are positioned on the same radial section and are respectively positioned on the end points at two ends of the same inner pipe diameter.
Furthermore, two groups of concave point groups are arranged on the outer wall of the inner pipe.
The invention has the beneficial effects that:
the utility model provides a pair of tent support, it comprises the folding branch of multiunit, form one and can dismantle fast, the support of equipment, and be provided with the pit on with the inner tube of this branch, make one section inner tube of having beaten the pit take place deformation, this deformation inner tube cup joints the assembly with the outer tube, because the pit beats the surface of establishing at the inner tube, and should beat one section inner tube cover of pit in the outer tube inner chamber, compare in the pit and beat this kind of condition of establishing at the outer tube surface, the cover is established the inner tube surface in the outer tube and can not receive the rainwater erosion, therefore, beat on the inner tube and establish pit department and also can not rust, branch life is prolonged.
Two groups of concave point groups are arranged on the surface of the inner pipe along the axial direction of the inner pipe; the two sets of the axially arranged concave point groups ensure that the inner pipe and the outer pipe are stably connected after being matched, and radial shaking is avoided, so that the inner pipe and the outer pipe are prevented from shaking radially when only one set of the concave point groups is arranged; each group of concave point groups comprises two concave points which are positioned on the same radial section and are respectively positioned on the end points of two ends of the same inner pipe diameter; the pipe walls of the two sections of inner pipes between the two concave points are extruded and expanded, and the two concave points on the same concave point group are respectively positioned at the end points at the two ends of the diameter of the same inner pipe, so that the outward expansion degree of the pipe walls of the two sections of inner pipes between the two concave points is ensured to be consistent, after the pipe walls of the two sections of inner pipes between the two concave points are in interference fit with the outer pipe, the stress on the pipe walls of the two sections of inner pipes between the two concave points is uniform and stable, the integral bending and pressing resistance is enhanced.
When the folding branch that this application provided of preparation, adopted the tube pressing machine to carry out fixed the cup jointing to inner tube and outer tube, this assembly process is comparatively convenient, only needs the start-up push rod can accomplish the equipment of inner tube and outer tube.
Drawings
FIG. 1 is a schematic view of a conventional connection between an inner pipe and an outer pipe;
FIG. 2 is a schematic view of the fixed sleeve connection between the inner tube and the outer tube of the foldable strut according to the present invention;
fig. 3 is a schematic view illustrating a tent frame according to the present invention in a separated state;
fig. 4 is a schematic view illustrating an assembled state of a tent frame according to the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is an enlarged view of FIG. 5;
FIG. 7 is a top view of a tube press provided in accordance with the present invention;
FIG. 8 is a major view of a pipe press provided by the present invention;
FIG. 9 is a top view of a tube press according to the present invention in cooperation with a folding bar;
fig. 10 is a front view of the pipe press according to the present invention in cooperation with a folding bar.
Wherein: 1. an inner tube; 2. an outer tube; 3. concave points; 4. an elastic cord; 5. a fixing cap; 51. a hand-held portion; 52. a fixed part; 53. a connecting portion; 6. a pipe pressing machine; 61. a push rod; 62. a front section mounting seat; 63. a middle section mounting base; 64. a rear section mounting base; 641. a placement section; 642. a boss portion; 65. a slide rail.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 2 and 3, a tent support comprises a plurality of groups of folding struts, two adjacent groups of folding struts are movably sleeved with each other, and the two groups of folding struts can be disassembled, that is, an inner tube 1 of a front folding strut is movably sleeved in a rear group of folding outer tubes 2; each group of folding supporting rods comprises two fixedly sleeved pipe bodies, the pipe bodies are divided into an inner pipe 1 and an outer pipe 2 according to the relative position relationship of the two pipe bodies after being sleeved, and the inner pipe 1 is sleeved in the inner cavity of the outer pipe 2.
When the folding tent is folded, the two adjacent groups of movably sleeved folding support rods are separated, so that the integral tent support can be disassembled and folded; when the folding tent is used, only two groups of detached adjacent folding supporting rods need to be sleeved, and the assembly of the whole tent support can be realized.
One of the greatest innovation points of the invention is a fixed sleeving mode of the outer pipe 2 and the inner pipe 1 in each group of folding supporting rods, and the concrete structure is as follows: set up a plurality of concave points 3 on the outer wall of inner tube 1, be equipped with one section and outer tube 2 fixed connection of concave point 3 on the inner tube 1. Through the structural design, the connection between the inner pipe 1 and the outer pipe 2 is realized, the concave points at the joints are prevented from being corroded by rainwater, and the service life of the supporting rod is prolonged.
As shown in fig. 5 and 6, the outer diameter of the inner tube 1 is smaller than the inner diameter of the outer tube 2; the inner diameter of the outer pipe 2 is 0.05 mm-0.06 mm larger than the outer diameter of the inner pipe 1. The outer pipe 2 and the inner pipe 1 are convenient to movably sleeve without a concave point, and clearance fit is realized.
The outer surface of one section pipe wall of inner tube 1 is provided with a plurality of concave points 3 for the position that is equipped with concave point 3 on inner tube 1 takes place to deform, consequently look past along the axial of inner tube 1, on the cross section that this inner tube 1 was beaten concave point 3 department, because the concave point 3 has been beaten to the surface of inner tube 1, so this concave point 3 department receives the extrusion, the pipe wall that is in the not 3 departments of beating concave point on same radial cross section is then outside inflation expansion, cup joint this section inner tube 1 that has beaten concave point 3 behind the inner chamber of outer tube 2 of the same group, the inflation department of inner tube 1 that has beaten concave point 3 and outer tube 2 interference fit, this inflation pipe wall restriction both produce axial displacement, thereby realize that inner tube 1 one end cup joints with outer tube 2 fixedly.
In order to ensure that the connection stability is high after the expanded pipe wall of the inner pipe 1 is in interference fit with the outer pipe 2, the method for forming the concave points 3 on the inner pipe 1 is as follows:
as shown in fig. 6, two sets of pit groups are provided on the surface of the inner tube 1 along the axial direction of the inner tube 1; the two sets of axially arranged concave point groups ensure that the inner pipe 1 and the outer pipe 2 are stably connected after being matched, and radial shaking is avoided, so that the inner pipe 1 and the outer pipe 2 are prevented from shaking radially when only one set of concave point group is arranged; each group of concave point groups comprises two concave points 3, and the two concave points 3 are positioned on the same radial section and are respectively positioned on the end points at two ends of the diameter of the same inner pipe 1; the pipe walls of the two sections of the inner pipes 1 between the two concave points 3 are extruded and expanded, and the two concave points 3 on the same concave point group are respectively positioned at the end points at the two ends of the diameter of the same inner pipe 1, so that the outward expansion degree of the pipe walls of the two sections of the inner pipes 1 between the two concave points 3 is ensured to be consistent, after the pipe walls of the two sections of the inner pipes 1 between the two concave points 3 are in interference fit with the outer pipe 2, the stress on the pipe walls of the two sections of the inner pipes 1 between the two concave points 3 is uniform and stable, the integral.
Two adjacent groups of folding supporting rods are movably sleeved, namely, one section of the inner pipe 1 which is not provided with the concave point 3 is in clearance fit with the other outer pipe 2, and the two sections are movably sleeved.
As shown in fig. 3 and 4, in order to ensure that the sequence of each folding strut is not changed after the folding struts are disassembled, the elastic rope 4 is sequentially passed through each group of folding struts, and two ends of the elastic rope 4 are respectively and fixedly connected with one outer tube 2 at the head end and the tail end of the tent support through the fixing caps 5.
The fixing cap 5 and the outer tube 2 are fastened and connected by threads, and the specific connection mode is as follows:
as shown in fig. 4, the fixing cap 5 includes a hand-held portion 51, a fixing portion 52 and a connecting portion 53, which are connected in sequence; the fixing part 52 is provided with threads which are matched with the threads on the inner wall of the tail end of the outer tube 2, and the fixing part and the outer tube are connected in a fastening way; the hand-held part 51 is used for holding by hand, and the fixing cap 5 is rotated to be screwed with the outer tube 2; the connecting part 53 is provided with a through hole, and the elastic rope 4 passes through the through hole and is connected and fixed with the fixing cap 5.
When in use, the elastic rope 4 firstly passes through each group of outer pipes 2, the end part of the elastic rope 4 is fixed on the fixing cap 5, and the fixing cap 5 is arranged at the end part of the outer pipe 2.
The material of the inner tube 1 and the outer tube 2 is selected to be 7001 aluminum material, and the aluminum material has better ductility.
The manufacturing and processing method of the pipe body is as follows:
firstly, heating a perforated blank, then extruding, carrying out heat treatment on the extruded blank, then rolling a pipe, carrying out cold drawing on the pipe after the pipe is rolled twice, carrying out six times of cold drawing, quenching the stretched pipe, carrying out artificial aging, finally cutting the processed pipe according to the size, and spraying an antioxidant coating on the surface of the cut pipe; the preparation of the outer tube 2 or the inner tube 1 is achieved by the above steps.
A plurality of concave points 3 are punched on the surface of the prepared inner pipe 1.
And (3) mounting and connecting the prepared outer pipe 2 and the prepared inner pipe 1 to form a group of folding supporting rods, wherein the process is as follows:
inserting the section of the inner pipe 1 with the concave points 3 into the inner cavity of the outer pipe 2, placing the primarily assembled inner pipe 1 and outer pipe 2 on a pipe pressing machine 6, starting the pipe pressing machine 6, and completely pressing the section of the inner pipe 1 with the concave points 3 into the outer pipe 2 to form a group of folding supporting rods.
As shown in fig. 7 and 8, the pipe press 6 includes a push rod 61, a front-stage mounting seat 62, a middle-stage mounting seat 63, a rear-stage mounting seat 64, and a slide rail 65.
The middle-stage mount 63 and the rear-stage mount 64 are mounted on the slide rails 65 and movable along the slide rails 65. The push rod 61, the front section mounting seat 62, the middle section mounting seat 63 and the rear section mounting seat 64 are sequentially mounted, and the four are mounted on a straight line.
Middle section mount pad 63 includes base and flip, puts the interlude of outer tube 2 on the base of middle section mount pad 63, and flip turns, withholds outer tube 2, prevents to press the pipe in-process, and outer tube 2 takes place to remove.
The rear-stage mounting seat 64 includes a placement portion 641 and a protrusion 642, which are connected to each other. The outer tube 2 is placed on the placement portion 641 with its distal end portion abutting against one side wall of the projection 642.
As shown in fig. 9 and 10, the positions of the middle-stage mounting seat 63 and the rear-stage mounting seat 64 are adjusted on the slide rail 65, the middle-stage mounting seat 63 and the rear-stage mounting seat 64 are adjusted to appropriate positions to be fixed, the preliminary assembly form of the inner tube 1 and the outer tube 2 is placed on the tube press 6, the inner tube 1 faces the end of the push rod 61, the joint of the outer tube 2 and the inner tube 1 is placed on the front-stage mounting seat 62, the middle part of the outer tube 2 is placed on the middle-stage mounting seat 63, and the tail end part of the outer tube 2 is mounted on the rear-.
The push rod 61 is started, the push rod 61 is in contact with one end of the inner tube 1, the tail end of the outer tube 2 is in contact with the rear section mounting seat 64, the push rod 61 pushes the inner tube 1 to enter the inner cavity of the outer tube 2, and one section of the inner tube 1, which is provided with the concave points 3, is completely pushed into the inner cavity of the outer tube 2, so that the assembly of the inner tube and the outer tube is completed.
The assembled groups of folding supporting rods are connected in series in sequence through the elastic ropes 4, and two ends of each elastic rope 4 are fixedly connected with each group of outer tubes 2 at the head end and the tail end of the tent support through the fixing caps 5 respectively to form a complete tent support.
Through the steps, the tent support is manufactured.
The invention makes subversive improvement on each group of folding supporting rods in the tent bracket, changes the original external punching point into the internal punching point for extrusion assembly, thus avoiding the damage of the surface protective coating by the external punching point of the supporting rod and solving the problem that the external concave point is easy to accumulate water and rust. The invention can ensure that the surface of the whole tent support is smooth after being assembled and the protective coating is complete, thereby greatly prolonging the service life of the tent support.
The above is the preferred embodiment of the present invention, and several other simple substitutions and modifications made on the premise of the inventive concept should be considered as falling into the protection scope of the present invention.
Claims (10)
1. A method for manufacturing a tent bracket is used for manufacturing the tent bracket, the tent bracket comprises a plurality of groups of folding supporting rods, and two adjacent groups of folding supporting rods are movably sleeved; each group of folding supporting rods comprises an inner pipe and an outer pipe; the outer wall of one section of the inner pipe is provided with a plurality of groups of concave points, the section of the inner pipe provided with the concave points is fixedly sleeved with the inner cavity of the outer pipe, and the other section of the inner pipe not provided with the concave points is movably sleeved with the outer pipe in the other group of the folding supporting rods; the manufacturing method of the tent support is characterized in that: the steps of the method are as follows,
preparing an outer pipe and an inner pipe;
secondly, punching a plurality of groups of concave point groups on the surface of the prepared inner tube;
assembling an outer pipe and an inner pipe in the folding support rod;
and fourthly, the elastic ropes are connected with the folding support rods.
2. The method of manufacturing a tent leg of claim 1, wherein: in the first step, the blank with the holes is heated, then the blank is extruded, the extruded pipe body is subjected to heat treatment, then pipe rolling is carried out, the pipe body after pipe rolling is subjected to cold drawing, the stretched pipe body is quenched, then artificial aging is carried out, finally the treated pipe body is cut according to the size, and an antioxidant coating is sprayed on the surface of the cut pipe body.
3. The method of manufacturing a tent leg of claim 1, wherein: and in the third step, inserting the section of the inner pipe with the concave points into the inner cavity of the outer pipe to form primary assembly, placing the inner pipe and the outer pipe after the primary assembly on a pipe pressing machine, starting the pipe pressing machine, and completely pressing the section of the inner pipe with the concave points into the outer pipe to complete the assembly of the group of folding support rods.
4. The method of manufacturing a tent leg of claim 1, wherein: and in the fourth step, all the groups of the folding supporting rods which are connected in a pressing mode are sequentially connected in series through the elastic ropes, and the two ends of each elastic rope are fixedly connected with the outer pipes at the head end and the tail end of the tent support through the fixing caps respectively.
5. The method of manufacturing a tent frame of claim 2, wherein: the tube rolling process was performed twice.
6. The method of manufacturing a tent frame of claim 2, wherein: the cold drawing process was performed six times.
7. The method of manufacturing a tent frame of claim 3, wherein: the pipe pressing machine comprises a push rod, a front section mounting seat, a middle section mounting seat, a rear section mounting seat and a slide rail; the middle section mounting seat and the rear section mounting seat are mounted on the slide rail and can move along the slide rail; the push rod, the front section mounting seat, the middle section mounting seat and the rear section mounting seat are sequentially and horizontally mounted, and the push rod, the front section mounting seat, the middle section mounting seat and the rear section mounting seat are positioned on a straight line; the anterior segment mount pad is used for placing the junction of outer tube and inner tube, and the middle section mount pad is used for placing the middle part of outer tube, and the back end mount pad is used for placing the terminal position of outer tube.
8. The method of manufacturing a tent leg of claim 7, wherein: the middle section mount pad includes base and flip, and the base is used for placing the outer tube, and flip is used for withholding the outer tube locking, prevents to press the pipe in-process, and the outer tube takes place to remove.
9. The method of manufacturing a tent frame of claim 1, wherein: the concave point groups are arranged along the axial direction of the inner pipe; each group of concave point groups comprises two concave points which are positioned on the same radial section and are respectively positioned on the end points at two ends of the same inner pipe diameter.
10. The method of manufacturing a tent frame of claim 1 or 9, wherein: two groups of concave point groups are arranged on the outer wall of the inner pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283084.XA CN111468895B (en) | 2020-04-13 | 2020-04-13 | Method for manufacturing tent bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283084.XA CN111468895B (en) | 2020-04-13 | 2020-04-13 | Method for manufacturing tent bracket |
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| Publication Number | Publication Date |
|---|---|
| CN111468895A true CN111468895A (en) | 2020-07-31 |
| CN111468895B CN111468895B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010283084.XA Active CN111468895B (en) | 2020-04-13 | 2020-04-13 | Method for manufacturing tent bracket |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2654784Y (en) * | 2003-11-24 | 2004-11-10 | 金基凤 | Folding supporting pole for tent |
| CN101988533A (en) * | 2009-07-30 | 2011-03-23 | 金祚献 | Connecting sleeve |
| CN204225971U (en) * | 2014-10-23 | 2015-03-25 | 东莞正扬电子机械有限公司 | A kind of sparger for SCR system |
-
2020
- 2020-04-13 CN CN202010283084.XA patent/CN111468895B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2654784Y (en) * | 2003-11-24 | 2004-11-10 | 金基凤 | Folding supporting pole for tent |
| CN101988533A (en) * | 2009-07-30 | 2011-03-23 | 金祚献 | Connecting sleeve |
| CN204225971U (en) * | 2014-10-23 | 2015-03-25 | 东莞正扬电子机械有限公司 | A kind of sparger for SCR system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111468895B (en) | 2022-05-03 |
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