CN211991367U - Stitch welding type multilayer steel mesh framework - Google Patents
Stitch welding type multilayer steel mesh framework Download PDFInfo
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- CN211991367U CN211991367U CN202020703676.8U CN202020703676U CN211991367U CN 211991367 U CN211991367 U CN 211991367U CN 202020703676 U CN202020703676 U CN 202020703676U CN 211991367 U CN211991367 U CN 211991367U
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Abstract
The utility model discloses a stitch welding formula multilayer steel mesh skeleton, include the tubulose basic steel mesh skeleton that forms by the welding of basic unit welding mechanism, it has welded a plurality of secondary enhancement steel mesh skeletons radially to overlap in proper order through a plurality of secondary welding mechanism outside basic steel mesh skeleton, and each secondary enhancement steel mesh skeleton forms through the welding of corresponding secondary welding mechanism, warp and weft welded fastening on the adjacent secondary enhancement steel mesh skeleton, and the warp welded fastening of basic steel mesh skeleton's weft and adjacent secondary enhancement steel mesh skeleton. The utility model has the characteristics of hoop rigidity is high, and bearing capacity is strong, greatly reduced the wall thickness of tubular product for the quality is lighter relatively, is convenient for deposit warehousing and transportation and bury ground use. The utility model is suitable for a technical field that compound tubular product was made.
Description
Technical Field
The utility model belongs to the technical field of composite pipe makes, specifically speaking relates to a stitch welding formula multilayer steel mesh skeleton.
Background
The steel skeleton polyethylene plastic composite pipe (standard number: CJ/T123-2016) for water supply is reinforced by a single-layer steel wire mesh skeleton, is widely applied to the field of pressurized water delivery, and is also widely applied to the fields of petrochemical industry and the like due to excellent corrosion resistance.
At present, the maximum specification of the steel skeleton polyethylene plastic composite pipe is DN600, the caliber is continuously increased, the single-layer steel wire mesh reinforced structure cannot meet the requirement of the product on pressure, and meanwhile, the ring stiffness of the single-layer reinforced structure pipe is low, so that the storage, the transportation and the buried use of the pipe are limited.
When a higher pressure level is needed, the pressure bearing capacity of the pipe can be enhanced by the multi-layer steel mesh framework reinforcing structure, and meanwhile, the wall thickness of the pipe is greatly reduced. In the production of multilayer steel mesh skeleton reinforcing plastic composite pipe, the continuous welding technique of multilayer steel mesh skeleton is one of its key technique, does not have relevant introduction and utility model yet at present, the utility model discloses to provide a multilayer steel mesh skeleton stitch welding technique, provide the support for the production of multilayer steel mesh skeleton plastic composite pipe.
SUMMERY OF THE UTILITY MODEL
The utility model provides a stitch welding formula multilayer steel mesh skeleton for realize strengthening the bearing capacity of tubular product, simultaneously greatly reduced the purpose of the wall thickness of tubular product.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a stitch welding formula multilayer steel mesh skeleton, includes the tubulose basic steel mesh skeleton that forms by the welding of basic unit's welding mechanism, has welded a plurality of secondary steel mesh skeletons along its radial cover in proper order through a plurality of secondary welding mechanisms outside the basic steel mesh skeleton, and each secondary steel mesh skeleton is strengthened through the welding of corresponding secondary welding mechanism and forms, adjacent secondary warp and weft welded fastening on strengthening the steel mesh skeleton, and the warp welded fastening of steel mesh skeleton is strengthened with adjacent secondary to the weft of basic steel mesh skeleton.
Further, when welding basic steel mesh skeleton, be equipped with basic warp stop gear between basic unit's welding mechanism and basic steel mesh skeleton, the warp of basic steel mesh skeleton is spacing through basic warp stop gear.
Furthermore, basic warp stop gear is including assembling annular welding support electrode in basic steel mesh skeleton, in the outer peripheral face of welding support electrode is gone up and is opened a plurality of first spacing grooves along its circumference uniformly, each warp of basic steel mesh skeleton passes welding support electrode along the axial of welding support electrode through the first spacing groove that corresponds.
Further, when welding secondary reinforcing steel mesh skeleton, be equipped with secondary warp stop gear between secondary reinforcing steel mesh skeleton and the secondary welding mechanism that is used for this welding secondary reinforcing steel mesh skeleton, the warp of secondary reinforcing steel mesh skeleton is spacing through secondary warp stop gear.
Furthermore, the secondary warp limiting mechanism comprises a warp limiting ring sleeved outside the secondary reinforcing steel mesh framework, a plurality of second limiting grooves are uniformly formed in the inner circumferential surface of the warp limiting ring along the circumferential direction of the warp limiting ring, and each warp of the secondary reinforcing steel mesh framework penetrates through the warp limiting ring along the axial direction of the warp limiting ring through the corresponding second limiting groove.
Furthermore, a supporting seat for supporting the warp limiting ring is constructed at the lower part of the warp limiting ring.
Further, the spiral winding direction of the weft of the adjacent secondary reinforcing steel mesh frameworks is the same, and the spiral winding direction of the weft of the basic steel mesh framework is the same as that of the weft of the adjacent secondary reinforcing steel mesh frameworks.
Further, the spiral winding direction of the weft of the adjacent secondary reinforcing steel mesh frameworks is opposite, and the spiral winding direction of the weft of the basic steel mesh framework is opposite to that of the weft of the adjacent secondary reinforcing steel mesh framework.
Furthermore, each secondary welding mechanism for welding the secondary reinforcing steel mesh frameworks layer by layer is sequentially arranged at intervals along the axis direction of the basic steel mesh framework.
The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: gaps do not exist between every two layers of steel mesh frameworks, the steel mesh frameworks are welded into a whole through welding points between warps and wefts, and the overall strength and rigidity of the pipe are provided after the pipe is formed; and along with the welding of basic steel mesh skeleton by basic unit welding mechanism, basic unit welding mechanism will be welded the part and progressively conveyed to the secondary welding mechanism of each grade, make the utility model a continuous production process makes the shaping, has avoided after the individual layer welding, and then each other suit, then each other welded complicated process, has guaranteed the intensity after the whole welding, has avoided the phenomenon appearance of rosin joint or missing the welding; and simultaneously, based on the utility model discloses injection moulding's tubular product's hoop rigidity is high, and bearing capacity is strong, greatly reduced the wall thickness of tubular product for the quality is lighter relatively, is convenient for deposit warehousing and transportation and buries the ground and use.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a primary welding mechanism and a secondary welding mechanism according to an embodiment of the present invention; (ii) a
FIG. 3 is a schematic structural view of the connection between the main frame, the weft frame and the welding mechanism in the embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
fig. 6 is a right side view of the main frame in the embodiment of the present invention;
fig. 7 is a schematic structural view of a second traverse frame and a reversing mechanism according to an embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at D;
FIG. 9 is an enlarged view of a portion of FIG. 7 taken at E;
FIG. 10 is a schematic structural diagram of a first warp frame according to an embodiment of the present invention;
FIG. 11 is a schematic view of the structure of FIG. 10 at F;
FIG. 12 is a view showing a structure of a second warp frame according to the embodiment of the present invention;
FIG. 13 is a schematic structural view of a welding support electrode according to an embodiment of the present invention;
FIG. 14 is an enlarged view of portion C of FIG. 13;
fig. 15 is a schematic structural view of a secondary warp limiting mechanism according to an embodiment of the present invention;
fig. 16 is an axial structural section view of a secondary warp limiting mechanism according to an embodiment of the present invention.
Labeling components: 1-a first warp frame, 11-a first warp frame body, 12-a first warp disc, 13-a godet wheel, 2-a first warp converging unit, 3-a second warp converging unit, 4-a main frame, 41-an inner cylinder, 411-an inner cylinder extension part, 42-a base layer welding mechanism, 421-a welding wheel, 422-a welding support electrode, 423-a first limiting groove, 43-a secondary welding mechanism, 431-a support seat, 432-a warp limiting ring, 433-a second limiting groove, 44-a weft disc, 45-a weft frame body, 5-a warp reversing mechanism, 51-an outer reversing wheel, 52-an inner reversing wheel, 6-a second warp frame body, 61-a second warp frame body, 62-a second warp disc, 7-a basic steel mesh frame and 8-a secondary reinforcing steel mesh frame.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
The utility model discloses a stitch welding formula multilayer steel mesh skeleton, as shown in figure 1, figure 2, include the tubulose basic steel mesh skeleton 7 that forms by basic unit's welding mechanism welding, it has welded a plurality of secondary enhancement steel mesh skeleton 8 in proper order through a plurality of secondary welding mechanism radially to overlap along it outside basic steel mesh skeleton 7, and each secondary enhancement steel mesh skeleton 8 forms through the welding of corresponding secondary welding mechanism, warp and weft welded fastening on the adjacent secondary enhancement steel mesh skeleton 8, and the warp welded fastening of basic steel mesh skeleton 7's weft and adjacent secondary enhancement steel mesh skeleton 8. The utility model has the advantages that: gaps do not exist between every two layers of steel mesh frameworks, the steel mesh frameworks are welded into a whole through welding points between warps and wefts, and the overall strength and rigidity of the pipe are provided after the pipe is formed; and along with the welding of the basic steel mesh framework 7 by the basic welding mechanism, the basic welding mechanism gradually conveys the welded part to each level of secondary welding mechanism, so that the utility model discloses a continuous production process manufacturing and molding, avoided after the individual layer welding, the complicated process of sleeving each other, then welded each other, ensured the intensity after the whole welding, avoided the phenomenon that rosin joint or missing the welding appear; and simultaneously, based on the utility model discloses injection moulding's tubular product's hoop rigidity is high, and bearing capacity is strong, greatly reduced the wall thickness of tubular product for the quality is lighter relatively, is convenient for deposit warehousing and transportation and buries the ground and use.
As a preferred embodiment of the present invention, the spiral winding directions of the wefts of the adjacent secondary reinforcing steel mesh frames 8 are the same, and the spiral winding directions of the wefts of the foundation steel mesh frame 7 and the adjacent secondary reinforcing steel mesh frames 8 are the same; alternatively, the spiral winding direction of the weft of the adjacent secondary reinforcing steel mesh skeleton 8 is opposite, and the spiral winding direction of the weft of the base steel mesh skeleton 7 is opposite to that of the adjacent secondary reinforcing steel mesh skeleton 8. When the spiral winding directions of the wefts are the same, welding is convenient, and the radial bearing capacity of the formed framework is strong; when the weft spiral winding direction that adopts adjacent layer skeleton is opposite, axial, the radial bearing capacity of fashioned skeleton are strong, and the weft of warp both sides twines this warp and makes warp unwelded part less relatively, and the solder joint of warp is many promptly, and power consumption is big, but the wholeness is strong, and structural strength is big.
As a preferred embodiment of the present invention, as shown in fig. 2, fig. 6 shows, the utility model discloses a welding equipment includes host computer 4, be provided with basic unit's welding mechanism 42 and a plurality of secondary welding mechanism 43 on the host computer 4, basic steel mesh skeleton 7 forms through basic unit's welding mechanism 42 welding, each secondary strengthens steel mesh skeleton 8 forms through corresponding secondary welding mechanism 43 welding, basic unit's welding mechanism 42 and secondary welding mechanism 43 all include a plurality of welding unit, welding unit is equipped with and is used for twining the weft spiral in the warp outside and carries out welded welding wheel 421 to both, the weft frame includes that weft support body 45 and a plurality of winding have weft's weft dish 44, weft support body 45 rotates and installs on host computer 4, each weft dish 44 rotates and installs on weft support body 45, each welding unit sets firmly on weft support body 45, every welding unit and a weft dish 44 one-to-one.
As a preferred embodiment of the present invention, as shown in fig. 3 and 5, a basic warp limiting mechanism is provided at the base layer welding mechanism 42, and the warp of the basic steel mesh framework 7 is limited by the basic warp limiting mechanism. As shown in fig. 13 and 14, the basic warp limiting mechanism includes a welding support electrode 422 having an annular structure, the welding support electrode 422 is sleeved outside the inner cylinder extension 411 of the main machine 4, a first limiting groove 423 is formed on the outer circumferential surface of the welding support electrode 422 along the axial direction thereof, and each warp of the basic steel mesh framework 7 passes through the welding support electrode 422 through the corresponding first limiting groove 423. During welding, the welding wheel 421 of the base layer welding mechanism 42 spirally winds the weft which is unwound from the corresponding weft coil disc 44 onto the warp on the layer, the welding wheel 421 applies pressure to the weft and welds the weft when winding, and the welding support electrode 422 is arranged, so that the warp and the weft of the base steel mesh framework 7 are not deformed by pressure welding of the welding wheel 421, stable welding is realized, the welding is firmer and more reliable, the resistance of a non-welding part is reduced, the welding strength of a welding part is enhanced, and the welding quality is improved.
As a preferred embodiment of the present invention, as shown in fig. 3, 4 and 6, a basic warp limiting mechanism and a secondary warp limiting mechanism are provided at the secondary welding mechanism 43, a gap for the basic steel mesh framework 7 to pass through is provided between the basic warp limiting mechanism and the secondary warp limiting mechanism, and the warp of the secondary reinforced steel mesh framework 8 is limited by the secondary warp limiting mechanism. As shown in fig. 15 and 16, the secondary warp limiting mechanism includes a warp limiting ring 432, the warp limiting ring 432 is sleeved outside the welding support electrode 422, a support seat 431 is disposed at the lower portion of the warp limiting ring 432, a plurality of second limiting grooves 433 are uniformly formed on the inner circumferential surface of the warp limiting ring 432 along the circumferential direction thereof, each warp of the secondary reinforcing steel mesh framework 8 passes through the warp limiting ring 432 along the axial direction of the warp limiting ring 432 through the corresponding second limiting groove 433, and the warp of the secondary reinforcing steel mesh framework 8 passes through the warp limiting ring 432 through the corresponding limiting hole. During the welding, the wheel 421 of welding of secondary welding mechanism 43 will be from the corresponding latitude drum 44 on the weft spiral winding of separating the line warp on this layer, wheel 421 is exerted pressure and is welded to weft in the winding, support electrode 422 through setting up the welding, make basic steel mesh skeleton 7 can not be at the in-process flagging deformation of marcing and produce the influence to the later stage shaping, through setting up warp spacing ring 432, make the warp of secondary enhancement steel mesh skeleton 8 and weft can not be in order welding mechanism 43's wheel 421 pressure welding deformation, realize firm welding, the welding is more firm reliable, strengthen welded part's welding strength, welding quality has been improved. The welding of two-layer wire net can adopt welding processes such as resistance welding or laser welding, and preferably, resistance welding is adopted in this embodiment. Each secondary welding mechanism of this embodiment layer-by-layer welding secondary reinforcing steel mesh skeleton 8 sets up along the axis direction of host computer 4 interval in proper order for the welding process is the fashioned process of a continuous production manufacturing, improves production efficiency, and avoids turning to the welding and causes the phenomenon emergence of rosin joint or hourglass welding.
As a preferred embodiment of the present invention, as shown in fig. 7-12, the wire releasing portion includes a first warp frame 1, a second warp frame 6 and a plurality of weft frames, as shown in fig. 2, the first warp frame 1 is disposed at the tail end of the main frame 4, and a warp gathering mechanism is disposed between the first warp frame 1 and the main frame 4; the second warp frame 6 is symmetrically arranged at two sides of the main machine 4, the warp reversing mechanism 5 is arranged between the second warp frame 6 and the main machine 4, each weft frame is rotatably arranged on the main machine 4, and each welding mechanism is rotatably arranged on the main machine 4 through the corresponding weft frame. The first warp frame 1 comprises a plurality of first warp discs 12 wound with warps and a plurality of godet wheels 13, the first warp discs 12 are rotatably arranged on a first warp frame body 11, the godet wheels 13 are rotatably arranged at the top of the first warp frame body 11, and the godet wheels 13 are provided with godet grooves for guiding the warps; the second warp frame 6 comprises a plurality of second warp discs 62, and the second warp discs 62 are rotatably mounted on the second warp frame body 61. As shown in FIG. 2, the warp convergence mechanism comprises a first warp convergence unit 2 and a second warp convergence unit 3, each warp convergence unit comprises a warp convergence plate, the warp convergence plates are provided with a plurality of through holes for the passing of warps, and each warp convergence plate is welded on the convergence frame body. Warp on the first warp frame 1 passes through the through-hole that first warp assembles unit 2 after the godet wheel 13 direction, pass the through-hole that second warp assembles unit 3 again and accomplish the warp and assemble, then get into by host computer 4 afterbody, advance forward under the traction of traction portion and reach basic unit welding mechanism 42 department and weld with this layer weft, warp reversing mechanism 5 includes the switching-over frame of ring structure, the inner circle circumference of switching-over frame evenly is equipped with a plurality of interior reversing wheel 52, the outer lane circumference of switching-over frame evenly is equipped with a plurality of outer reversing wheel 51, each interior reversing wheel 52 and outer reversing wheel 51 one-to-one and rotate and install on the switching-over support body, switching-over support body and the inner tube extension 411 fixed connection of host computer 4. The warp threads on the second warp thread frame 6 are unwound from the second warp thread disc 62, then are reversed by the outer reversing wheel 51, then are reversed by the inner reversing wheel 52, and reach the secondary welding mechanism 43 under the traction of the traction part to be welded with the layer of weft threads. The primary welding mechanism 42 and the secondary welding mechanism 43 may be arranged symmetrically (welding position face to face) or sequentially, but a space for one person to operate is required between each layer of welding mechanism to maintain the weft and the welding mechanism. Specifically, in the embodiment, the two welding mechanisms are symmetrically arranged, that is, the welding wheels 421 of the two welding mechanisms are arranged face to face, so that the two welding mechanisms share one adjustment space, the overall length of the device is reduced, meanwhile, the length of the inner cylinder extension 411 of the main machine 4 is also reduced, and the rigidity of the device is improved. The first warp frame 1 is arranged at the tail part of the host machine 4, and the second warp frames 6 are symmetrically arranged at two sides of the host machine 4, so that the occupied space of the equipment is further reduced.
The utility model also discloses a stitch welding formula multilayer steel mesh skeleton's welding method, including following step:
s1, welding the basic steel mesh framework 7, and before welding, assembling welding support electrodes in an annular structure formed by the warps of the basic steel mesh framework 7, wherein the warps of the basic steel mesh framework 7 are assembled in the first limiting grooves 423 on the circumferential outer surface of the welding support electrodes one by one, and the welding support electrodes support and limit the warps; the purpose is to ensure the strength of a welding spot, and a welding wheel applies certain pressure to the welding spot during welding;
s2, when the basic steel mesh framework 7 is welded, a welding wheel of the basic layer welding mechanism applies pressure to a welding point where the weft and the warp are jointed and welds the welding point;
s3, welding the first layer of secondary reinforcing steel mesh framework 8 outside the basic steel mesh framework 7, wherein the warp of the secondary reinforcing steel mesh framework 8 is directly contacted with the weft of the basic steel mesh framework 7 and welded together, and the basic steel mesh framework 7 provides support for the secondary reinforcing steel mesh framework 8;
s4, when the corresponding secondary welding mechanism is used for welding the primary layer secondary reinforcing steel mesh framework 8, the warps of the secondary reinforcing steel mesh framework 8 are subjected to positive pressure and circumferential tangential force through rolling of the wefts of the warps by the welding wheels of the secondary welding mechanism, and during welding, in order to ensure that the basic steel mesh framework 7 is not deformed when being subjected to welding pressure, the warps are subjected to circumferential limiting; the specific circumferential limiting method comprises the following steps: the secondary warp limiting mechanism is adopted to perform annular limiting on warps, the secondary warp limiting mechanism is arranged between the secondary reinforcing steel mesh framework 8 and a secondary welding mechanism for welding the secondary reinforcing steel mesh framework 8, and the warps of the secondary reinforcing steel mesh framework 8 are limited by the secondary warp limiting mechanism;
and S5, when the Nth layer of secondary reinforcing steel net framework 8 is welded, the welding method is consistent with the welding method of the first layer of secondary reinforcing steel net framework 8, wherein N is an integer larger than 2.
In order to ensure that the warps and the wefts of the Nth secondary reinforcing steel mesh framework 8 and the warps of the Nth secondary reinforcing steel mesh framework 8 and the wefts of the previous secondary reinforcing steel mesh framework 8 or the foundation steel mesh framework 7 are welded into a whole, when any secondary reinforcing steel mesh framework 8 is welded, the welding current of the corresponding secondary welding mechanism is increased, and meanwhile, pressure is applied above welding spots during welding. Each secondary welding mechanism for welding the secondary reinforcing steel mesh frameworks 8 layer by layer is arranged at intervals along the traction direction of the stitch welding type multilayer steel mesh frameworks, the stitch welding type multilayer steel mesh frameworks are pulled by external force, and the basic steel mesh frameworks 7 and the secondary reinforcing steel mesh frameworks 8 complete continuous stitch welding operation of the multilayer tubular steel meshes.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.
Claims (9)
1. The utility model provides a stitch welding formula multilayer steel mesh skeleton which characterized in that: including the tubulose basic steel mesh skeleton that forms by the welding of basic unit welding mechanism, it has a plurality of secondary to strengthen the steel mesh skeleton to overlap in proper order to weld along its radial through a plurality of secondary welding mechanisms outside basic steel mesh skeleton, and each secondary strengthens the steel mesh skeleton and forms through the welding of corresponding secondary welding mechanism, and adjacent secondary warp and weft welded fastening on strengthening the steel mesh skeleton, and the warp welded fastening of steel mesh skeleton is strengthened with adjacent secondary to the weft of basic steel mesh skeleton.
2. A stitch-welded multi-layer steel mesh skeleton according to claim 1, wherein: when welding basic steel mesh skeleton, be equipped with basic warp stop gear between basic unit's welding mechanism and basic steel mesh skeleton, the warp of basic steel mesh skeleton is spacing through basic warp stop gear.
3. A stitch-welded multi-layer steel mesh skeleton according to claim 2, wherein: the basic warp stop gear is including assembling annular welding support electrode in basic steel mesh skeleton, in it has a plurality of first spacing grooves to open uniformly along its circumference on the outer peripheral face of welding support electrode, each warp of basic steel mesh skeleton passes welding support electrode along the axial of welding support electrode through the first spacing groove that corresponds.
4. A stitch-welded multi-layer steel mesh skeleton according to claim 1, wherein: when the secondary steel mesh framework is reinforced by welding, a secondary warp limiting mechanism is arranged between the secondary steel mesh framework and a secondary welding mechanism used for welding the secondary steel mesh framework, and warps of the secondary steel mesh framework are limited by the secondary warp limiting mechanism.
5. The stitch-welded multi-layer steel mesh skeleton according to claim 4, wherein: the secondary warp limiting mechanism comprises a warp limiting ring sleeved outside the secondary reinforcing steel mesh framework, a plurality of second limiting grooves are uniformly formed in the inner circumferential surface of the warp limiting ring along the circumferential direction of the warp limiting ring, and each warp of the secondary reinforcing steel mesh framework penetrates through the warp limiting ring through the corresponding second limiting groove along the axial direction of the warp limiting ring.
6. A stitch-welded multi-layer steel mesh skeleton according to claim 5, wherein: the lower part of the warp limiting ring is provided with a supporting seat for supporting the warp limiting ring.
7. A stitch-welded multi-layer steel mesh skeleton according to any one of claims 1-6, wherein: the spiral winding direction of the weft of the adjacent secondary reinforcing steel mesh frameworks is the same, and the spiral winding direction of the weft of the basic steel mesh framework is the same as that of the weft of the adjacent secondary reinforcing steel mesh frameworks.
8. A stitch-welded multi-layer steel net skeleton according to any one of claims 1 to 6, wherein: the spiral winding directions of the wefts of the adjacent secondary reinforcing steel mesh frameworks are opposite, and the spiral winding directions of the wefts of the basic steel mesh framework and the adjacent secondary reinforcing steel mesh frameworks are opposite.
9. A stitch-welded multi-layer steel net skeleton according to any one of claims 1 to 6, wherein: and all secondary welding mechanisms for welding the secondary reinforcing steel mesh frameworks layer by layer are sequentially arranged at intervals along the axis direction of the basic steel mesh framework.
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| CN202020703676.8U CN211991367U (en) | 2020-04-30 | 2020-04-30 | Stitch welding type multilayer steel mesh framework |
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| CN202020703676.8U CN211991367U (en) | 2020-04-30 | 2020-04-30 | Stitch welding type multilayer steel mesh framework |
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