A kind of prefabricated components battery mould
Technical field
The utility model relates to a kind of production equipment of building materials, particularly a kind of prefabricated components battery mould.
Background technology
In order to energy-saving and emission-reduction; protection of the environment, advocates green building, and country is carrying forward vigorously enforcement housing industrialization; building industry entirety is being upgraded by the mode of traditional form of construction work to building industrialization and is being made the transition, and building industrialization becomes the emphasis direction of future architecture industry development.Wherein, the suitability for industrialized production of precast concrete becomes the key point realizing building industrialization.
House precast concrete is divided into external wall plate, inner wall of building plate, building floor, architectural stair, coupling beam, balcony slab, air-condition plate etc. a variety of, adopt flat-die in process of production more, i.e. horizontal layout template, cast concrete along the horizontal plane, forms the precast concrete of various structure.The shortcoming of this produced by plane moulding method is that production efficiency is lower, the template number that need prepare is more, the space that production line takies is larger, and because component bottom surface is template face, upper surface is casting area, the difficult quality of upper surface controls, and because the shape of component, structure change are many, adopts produced by plane moulding to be subject to a lot of restriction.
In addition, also have and adopt battery mould production equipment to produce precast concrete, vertically cast concrete forms precast concrete.As at application number be 201410486474.1 Chinese patent in, disclose a kind of multifunctional concrete prefabricated component battery mould production equipment and production line, specifically comprise chassis, running gear, first, second limit mould, first, second end mould, several partition walls, backform, several collets, first, second end mould is equipped with core pore, and first, second limit mould and first, second end mould can move on chassis.
Above-mentioned battery mould production equipment, limit mould with the tensioning apparatus mutually supporting and be connected is not set between partition wall, be fixed by means of only the running gear opposite side mould be arranged on base and partition wall, in casting process, when carrying out slip casting owing to adopting pumping equipment, under the impact of mortar, the distortion of partition wall or limit mould may be caused, thus the pouring quality of prefabricated component is built in impact.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of prefabricated components battery mould, its production efficiency is high, and the prefabricated components quality of production is good.
Solution of the present utility model is achieved in that a kind of prefabricated components battery mould, comprises rail system, drive system and template system, wherein: rail system, comprises two or more track; Drive system, comprise and drive power source and drive jockey, described driving power source is connected with rail system by described driving jockey; Template system, is arranged on rail system, and described template system comprises bed die, formwork erection and Bian Mo, the molding cavity of assembled at least one prefabricated component of formation of described bed die, formwork erection and Bian Mo; Described formwork erection comprises fixing formwork erection and at least one movable formwork erection, and described movable formwork erection can move in orbit; Described prefabricated components battery mould also comprises strainer; described strainer comprises connecting rod and telescoping mechanism; the first end of described connecting rod is connected with movable formwork erection; the first end of described telescoping mechanism is connected with fixing formwork erection, removably connects between the second end of described connecting rod and the second end of telescoping mechanism.So, when aforementioned for employing battery mould is manufactured concrete component, adopt and drive template system to move horizontally in orbit in electric drive or hydraulic-driven to carry out assembled and form removal, be conducive to enhancing productivity, and the control accuracy improved concrete component size, thus improve the quality of the prefabricated components produced.In application process, by driving drive system movable formwork erection can be opened or closed, be conducive to the assembled of mould and dismounting, and, when drive system is single driving activity formwork erection, can the operation of single-unit activity formwork erection in form removal process, can according to assembled order one by one prefabricated components hang mould, can prevent battery mould from toppling over.And can movement in orbit by control activity formwork erection, the assembled of battery mould and form removal can be carried out easily, be conducive to enhancing productivity.In addition, by arranging tensioning apparatus, after making template system split, there is continuous, thus make battery mould in process of production, prevent the seepage of cement mortar in particularly slip casting, vibratory compaction process, the strength grade of concrete component is conformed to design grade, effective guarantee is defined to the quality control of concrete component; And removably connect between second end and the second end of telescoping mechanism of connecting rod, then make the split of template system and form removal become very simple, reduce operation easier; In addition, if when being also provided with pressure control device on tensioning apparatus, then while fully can ensureing the split pressure of template system, can also prevent from causing die deformation to damage because of over-tension.
Another technical scheme of the present utility model is on above-mentioned basis, and described telescoping mechanism is oil cylinder or cylinder, and one end of described oil cylinder or cylinder is connected with fixing formwork erection by the first Connection Block, and the other end of described oil cylinder or cylinder is connected with described connecting rod.So, employing oil cylinder or cylinder are used as the power source as strainer, have increased substantially the job stability of strainer, and easily realize the control of tensioning dynamics, and the other end adopts connecting rod, make the connection of strainer very convenient and simple, reduce operation easier.
Another technical scheme of the present utility model is on above-mentioned basis, described rail system comprises two tracks, roller is provided with in described track, the at least side of described track is provided with chute, described roller can roll and be arranged in described chute, described formwork erection is arranged on described roller, and described in described drive systems, roller moves in orbit.So, by being provided with roller in orbit, after roller and track runner lock, the speed that template system is assembled and dismantle can be increased substantially, particularly template system and drive system and track define stable snap close and are connected, increase substantially the stability of battery mould, template system is not easily toppled over, improve the security performance of battery mould.
Another technical scheme of the present utility model is on above-mentioned basis, and at least one end at the upper and lower two ends of described chute is provided with in-flanges, within described roller is positioned at in-flanges.So, chute is provided with in-flanges, roller is positioned at after within in-flanges, and roller and track runner in-flanges form locking, and also have guide effect, roller is unlikely to sideslip or stuck in chute simultaneously.The speed that template system is assembled and dismantle can be increased substantially like this, particularly template system and drive system and track define stable snap close and are connected, increase substantially the stability of battery mould, template system is not easily toppled over, improve the security performance of battery mould.
Another technical scheme of the present utility model is that, on above-mentioned basis, described rail system also comprises track growing apparatus, and described track growing apparatus comprises growth track and is connected and fixed plate, and described growth track is connected with track by being connected and fixed plate.So, by the length adopting the combination being connected and fixed plate and track to increase track, can ensure that the axis of track is constant, decrease the distortion of battery mould, and, by increasing the unit number of track length and template system, the concrete component number that same set of battery mould is produced can be increased flexibly, or it can be made to produce mass concrete component.In addition, when equipment needs transport, the ultra-wide problem in transportation can be solved by described track growing apparatus, to transport.
Another technical scheme of the present utility model is on above-mentioned basis, described driving power source is motor or motor, described driving jockey comprises drive link and gear, described track is provided with tooth bar, described driving power source is rotated by drive link driven gear, and wheel and rack generation relativity also drives template system to move.So, adopt motor or motor driven gear wheel and drive template system to move, gear and tooth bar combine, can prevent template system from producing trickle slip because of inertia, accurately can locate template system, and gear-rack drive power attenuation is little.
Another technical scheme of the present utility model is that, on above-mentioned basis, described template system also comprises backform, and described backform is arranged at the top of described molding cavity, and the side of described backform and Bian Mo or formwork erection are rotatably connected.So, after backform is arranged at the top of described molding cavity, after closing backform, slip casting method can be adopted to produce concrete component, and backform can limit the height dimension of concrete component, meanwhile, also makes the smooth specification of the end face of concrete component; In addition; also overfall can be set on backform; air in concrete component formation die cavity can be discharged; also excessive slip casting can be overflowed simultaneously, fully ensure that concrete component is built full, effectively ensure that its product quality; and; the side of backform and limit mould, side form or be rotatably connected every mould, then make the form removal of backform and close tightly to become very convenient, be conducive to enhancing productivity.
Another technical scheme of the present utility model is on above-mentioned basis, described template system also comprises backform hold down gag, described backform hold down gag comprises holder, pressing plate and fixing pluge, the first end of described holder and pressing plate is equipped with connecting hole, and the first end of described pressing plate is overlapped on holder, its second side pressure is located on backform, and described holder is arranged on the end face of formwork erection, described fixing pluge is plugged in upper and lower connecting hole, for connecting described pressing plate and holder.So, by arranging backform hold down gag, make backform can bear the concrete component pressure that produces of slip casting in process of production, effectively prevent backform to be out of shape displacement, fully ensure that the size conforms designing requirement of concrete component, and, adopt the backform hold down gag of aforementioned structure, make use of deadweight and lever construction dexterously, make it have self-locking ability, and matched moulds, form removal operation are simple.
Another technical scheme of the present utility model is that, on above-mentioned basis, described bed die is arranged at the bottom of described molding cavity, and described limit mould is arranged at the two sides of described molding cavity.So, when limit mould is arranged at the two sides of described molding cavity, limit mould is removed very convenient, particularly when producing the concrete component of different-thickness, the reserved adjustment width more than needed of limit mould size, only need adjustment mold cavity width and do not need more to change sides mould, making same set of battery mould can produce the concrete component of multiple complete different-thickness size simultaneously, achieve one module multiple usages.
Another technical scheme of the present utility model is that, on above-mentioned basis, the junction of described bed die, Bian Mo, backform and formwork erection is provided with seal.So; bed die, Bian Mo, backform are or/and after the junction of mould is provided with seal; in the production process of concrete component; the seepage of cement mortar is prevented in particularly slip casting, vibratory compaction process; the strength grade of concrete component is conformed to design grade, effective guarantee is defined to the quality control of concrete component.
Another technical scheme of the present utility model is on above-mentioned basis, described template system also comprises bed die fixture, described bed die fixture is arranged on the below of formwork erection and bed die, described one end of bed die fixture is fixedly connected with the bottom surface of formwork erection, and the other end is connected with the lower surface of bed die; Described bed die fixture comprises supporting seat and the stiff end that is arranged on supporting seat and adjustable side, and described stiff end is connected to the bottom of formwork erection, and described adjustable side is supported on the bottom surface of bed die.So, by the setting of bed die fixture, operative constraint is formed to the position of bed die, prevents it to be out of shape displacement in process of production, solve the problem of the easy seepage of traditional moulds bed die, in addition, if when bed die fixture is also provided with vertical lowering means, in dismounting mold process, vertical lowering means is only needed to move down, concrete component can be made to pass through from reforming small moving down, thus reach the effect of rapping, concrete component can not be adhered on side form.And described bed die fixture comprises supporting seat and the stiff end that is arranged on supporting seat and adjustable side, described stiff end is connected to the bottom of formwork erection, and described adjustable side is supported on the bottom surface of bed die.So, by the adjustment to adjustable side, bed die height can be changed, thus make a set of battery mould can become to produce the concrete component of differing heights, achieve one module multiple usages.
Another technical scheme of the present utility model is on above-mentioned basis, described template system also comprises the limit mould jockey be arranged on formwork erection side end face, described limit mould jockey comprises fixed head and at least one piece of active plate, described active plate is vertically installed on fixed head, described active plate has and is flexibly connected hole, be provided with dismountable connector in described flexible connection hole, connected by described limit mould jockey between described formwork erection and Bian Mo; Described flexible connection hole is mounting hole or elongate holes.So, by arranging limit mould jockey, be template system define can the combining structure of assembled, detachable, changeable, and, limit mould jockey template system can be held tightly formed overall; In addition, be provided with dismountable connector in flexible connection hole after, the assembled and dismounting of limit mould jockey is very convenient, reduces the assembled of battery mould and dismounting difficulty.
Another technical scheme of the present utility model is on above-mentioned basis, described prefabricated components battery mould also comprises tensioning apparatus, described tensioning apparatus comprises connecting rod and retractor device, the first end of described connecting rod is connected with movable formwork erection, the first end of described retractor device is connected with fixing formwork erection, removably connects between the second end of described connecting rod and the second end of retractor device; Described retractor device is oil cylinder or cylinder, and one end of described oil cylinder or cylinder is connected with fixing formwork erection by the first Connection Block, and the other end of described oil cylinder or cylinder is connected with described connecting rod.So, by arranging tensioning apparatus, after making template system split, there is continuous, thus make battery mould in process of production, prevent the seepage of cement mortar in particularly slip casting, vibratory compaction process, the strength grade of concrete component is conformed to design grade, effective guarantee is defined to the quality control of concrete component; And removably connect between second end and the second end of retractor device of connecting rod, then make the split of template system and form removal become very simple, reduce operation easier; In addition, if when being also provided with pressure control device on tensioning apparatus, then while fully can ensureing the split pressure of template system, can also prevent from causing die deformation to damage because of over-tension.In addition, employing oil cylinder or cylinder are used as the power source as tensioning apparatus, have increased substantially the job stability of tensioning apparatus, and easily realize the control of tensioning dynamics, and the other end adopts connecting rod, make the connection of tensioning apparatus very convenient and simple, reduce operation easier.
Another technical scheme of the present utility model is on above-mentioned basis, described prefabricated components battery mould also comprises grouting device, described grouting device comprises feed pipe, filling tube and stifled core, the tube wall of described filling tube has charging aperture, the discharging opening of described feed pipe is connected with the charging aperture of described filling tube, described stifled core is removably set in filling tube, and described stifled core can be opened or the charging aperture of filling tube described in shutoff and/or discharging opening under predetermined state; The outer end of described stifled core is provided with catch bar, and described stifled core can move around by the inwall along filling tube under the effect of catch bar.So, because the stifled inner face of core and the working face of template flush, can fully prevent concreting from completing and after harden, form concrete bolt thus cause cannot the situation appearance of the demoulding in discharge outlet.And catch bar is provided with in the outer end of stifled core, described stifled core can move around by the inwall along filling tube under the effect of catch bar, like this after slip casting completes, stifled core can be advanced and block grouting port, prevents excessive slip casting.
Another technical scheme of the present utility model is on above-mentioned basis, and described grouting device is arranged on described limit mould or bed die or backform.Like this, can need according to different the position that grouting device is set, conveniently manipulate grouting device, improve slip casting efficiency.
Another technical scheme of the present utility model is on above-mentioned basis; described prefabricated components battery mould also comprises prefabricated component internal styling device, and described prefabricated component internal styling device is the dividing plate be arranged in described molding cavity, projection, groove or splicing chunk.So, then correspondingly can correspondingly form pit, hole, projection, raised line, windowsill, locker etc. on concrete component, fully meet the diversity requirement of concrete component.
Another technical scheme of the present utility model is on above-mentioned basis, and described prefabricated components battery mould also comprises protector, and described protector piecemeal is arranged on formwork erection and/mould top, limit.So, because battery mould height is comparatively large, the setting of protector, making operating personnel when overhauling or form removal lifts concrete component, forming good protection, prevent the generation of security incident to operating personnel.
Another technical scheme of the present utility model is on above-mentioned basis, and described prefabricated components battery mould also comprises heating apparatus, and described heating apparatus is the electric heat source be arranged on described template system, liquid state or gaseous medium heating source.So, low temp area in the winter time, temperature is too low makes concrete setting rate reduce, and likely cause concrete to be damaged by frost, and after battery mould arranges heating apparatus, by heating maintenance, battery mould normal use at low ambient temperatures can be ensured; And heating apparatus is the electric heat source be arranged on described template system, liquid state or gaseous medium heating source, then can select mode of heating flexibly according to working condition.
Another technical scheme of the present utility model is on above-mentioned basis; described prefabricated components battery mould also comprises form height adjusting device; described form height adjusting device is that backform or bed die regulate height and position by magnetic holder fixture, and described magnetic holder fixture is electromagnetism box fixture.So, the height of the inner molding cavity of template system can be changed by adjusting template arrangement for adjusting height, thus realize the concrete component simultaneously can producing multiple complete differing heights size at same set of battery mould, achieve one module multiple usages; And when to be backform or bed die regulate height and position by magnetic holder fixture to form height adjusting device, backform is or/and the position of bed die can be arranged flexibly; When fixture adopts electromagnetism box, then do not need to destroy template system, the installation site of form height adjusting device can be arranged on any position according to the size requirements of concrete component, make same set of battery mould can produce the concrete component of multiple complete differing heights size simultaneously, achieve one module multiple usages.In addition, when adopting electromagnetism box fixture, the additional and subduction of magnetic is very convenient, but also can slowly increase progressively magnetic dynamics, is not easy to cause wink to inhale to operating personnel and crushes, significant to safety in production.
Another technical scheme of the present utility model is on above-mentioned basis; described prefabricated components battery mould also comprises template width adjusting device, and to be described bed die regulate height and position by oil cylinder or gear or cam or tooth bar or draw-in groove to described template width adjusting device.So, the thickness of concrete component formation cavity can be changed by adjusting template width adjusting device, make same set of battery mould can produce the concrete component of multiple complete different-thickness size simultaneously, achieve one module multiple usages.
Another technical scheme of the present utility model is on above-mentioned basis; described prefabricated components battery mould also comprises prefabricated component core-pulling device; described core-pulling device comprises some independently sub-drawing core pipes; described sub-drawing core pipe is made up of steel pipe; at least one lateral wall of described sub-drawing core pipe is provided with elastomer or brush, and described elastomer or brush are arranged on the relative face of adjacent sub-drawing core pipe.So, by arranging core-pulling device, thus make battery mould can produce core-drawing pore-creating concrete component, and described core-pulling device comprises some independently sub-drawing core pipes, sub-drawing core pipe is made up of steel pipe, at least one lateral wall of described sub-drawing core pipe is provided with elastomer or brush, elastomer or brush are formed and good block effect in concrete placement, prevent cast-in-place concrete from pouring into hollow concrete member inner chamber, fully ensure that the complete Sum fanction of hollow concrete member internal cavities, and in the process of loosing core, elastomer or brush can discharge rapping space, the difficulty that makes to loose core significantly is reduced, and, even if loose core when concrete solidifies not yet completely, also can not adhere to because of concrete damage drawing core pipe causing concrete component, fully ensure that the total quality of concrete component.And elastomer or brush are arranged on the relative face of adjacent sub-drawing core pipe, all there is compression stroke between adjacent so sub-drawing core pipe, can fully ensure deviating from smoothly of core pipe.In addition, at least one lateral wall of described sub-drawing core pipe is provided with elastomer or brush, the frictional force between adjacent sub-drawing core pipe can also be reduced, the active force of loosing core is diminished, is convenient to loose core.
Another technical scheme of the present utility model is, on above-mentioned basis, described template system to be provided with vibratory compaction device, and described vibratory compaction device is arranged in described prefabricated component core-pulling device.By being arranged on the core mould vibrating bar in prefabricated component core-pulling device, in the process of producing concrete component, fine gas bubbles vibration in concrete slurry can be discharged, effectively prevent concrete component internal density hollowing phenomenon that is uneven, that formed because of bubble from occurring, improve the packing of concrete component, fully can ensure that the intensity of concrete component reaches designing requirement.
Another technical scheme of the present utility model is, on above-mentioned basis, described template system to be provided with vibratory compaction device, and described vibratory compaction device is for being arranged on vibrating head or vibrating motor on described template system.By being arranged on vibrating head on template system or vibrating motor, in the process of producing concrete component, fine gas bubbles vibration in concrete slurry can be discharged, effectively prevent concrete component internal density hollowing phenomenon that is uneven, that formed because of bubble from occurring, improve the packing of concrete component, fully can ensure that the intensity of concrete component reaches designing requirement.
Another technical scheme of the present utility model is on above-mentioned basis, described connecting rod comprises first connecting rod and second connecting rod, described first connecting rod and second connecting rod the inner are by the first pinned connection, the outer end of described first connecting rod and the connection of described telescoping mechanism, the outer end of described second connecting rod is connected with described movable formwork erection.So, first connecting rod and second connecting rod the inner are by after the first pinned connection, and both can for being that axis rotates with bearing pin, and both very easily mount and dismount, and are conducive to the installation of limit mould, dismounting and replacing, improve the applicability of battery mould.
Another technical scheme of the present utility model is on above-mentioned basis, removably connect between described first connecting rod and second connecting rod, the inner of described first connecting rod and/or second connecting rod offers multiple the first connecting hole arranged along second connecting rod length direction, and described first bearing pin optionally inserts in described first connecting hole.So, tensioning apparatus length can regulate, and can not need, under the prerequisite changing tensioning apparatus, can change the horizontal length of template system.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.
The prefabricated components battery mould assembled state structural representation of Fig. 1 involved by a kind of embodiment of this technology;
The prefabricated components battery mould disassembled form structural representation of Fig. 2 involved by a kind of embodiment of this technology;
Fig. 3 is the front view of the battery mould of prefabricated components shown in Fig. 1;
Fig. 4 is the structural representation of the track of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
Fig. 5 is the structural representation of the roller devices of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
Fig. 6 is the stereogram of roller devices shown in Fig. 5;
Fig. 7 is the structural representation of the track growing apparatus of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
Fig. 8 is the structural representation of the drive system of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
Fig. 9 is the structural representation of the backform of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
Figure 10 is the backform hold down gag structural representation of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
Figure 11 is the bed die fixture structure schematic diagram of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
The limit mould jockey structural representation that Figure 12 is a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
Figure 13 is the structural representation of the tensioning apparatus of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
Figure 14 is the structural representation of the grouting device of a kind of embodiment of the battery mould of prefabricated components shown in Fig. 1;
The prefabricated component core-pulling device structural representation of a kind of embodiment of prefabricated components battery mould shown in Figure 15 Fig. 1.
In figure:
100 rail system 200 drive system 300 template systems
301 bed die 3011 bed die fixture 302 limit moulds
The movable formwork erection of formwork erection 304 fixed by 3021 limit mould jockeys 303
305 tensioning apparatus 306 grouting device 307 protectors
01 supporting seat 02 hinged bolt 03 contiguous block
04 gripper shoe 05 supporting seat 06 boss
11 backform 12 backform hold down gag 13 latches
14 pressure head 15 holder 16 pressing plates
21 first connecting rod 22 oil cylinder 23 first Connection Blocks
25 second Connection Block 26 second connecting rod 27 crook
31 feed pipe 32 rotating disks 33 block up core
34 filling tube 35 catch bar 36 bracing frames
41 track 42 tooth bar 43 chutes
44 motor 45 first gear 46 drive links
47 second gear 48 bolt 49 connecting holes
410 first supporting seat 411 first connecting axle 412 rollers
413 second supporting seats 110 are connected and fixed plate 111 and are connected and fixed bolt
51 fixed head 52 first connecting plates 54 are flexibly connected hole
55 first latch 56 second latch 57 second connecting plates
58 first gripper shoe 59 second gripper shoe 510 the 3rd gripper shoes
61 sub-drawing core pipe 62 core-pulling mechanism 63 brushes
Detailed description of the invention
Be described in detail the utility model below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.In addition, those skilled in the art, according to the description of presents, can carry out respective combination to the feature in embodiment in presents and in different embodiment.
The utility model embodiment is as follows, refers to Fig. 1 to Fig. 4, a kind of prefabricated components battery mould, comprise rail system 100, drive system 200 and template system 300, wherein: rail system 100, comprise two or more track 41, preferably described track 41 is parallel to each other; Drive system 200, comprise and drive power source and drive jockey, described driving power source is connected with rail system 100 by described driving jockey; Template system 300, is arranged on rail system 100, and described template system 300 comprises bed die 301, formwork erection and Bian Mo 302, the molding cavity of assembled at least one prefabricated component of formation of described bed die 301, formwork erection and Bian Mo 302; Described formwork erection can comprise fixing formwork erection 303 and at least one movable formwork erection 304, and described movable formwork erection 304 can move in orbit; Described prefabricated components battery mould also comprises strainer; as shown in Fig. 1 and Figure 13; described tensioning apparatus 305 comprises connecting rod and retractor device; the first end of described connecting rod is connected with movable formwork erection 304 by the second Connection Block 25; the right-hand member of described retractor device is connected with fixing formwork erection 303 by the first Connection Block 23, removably connects between the second end of described connecting rod and the second end of retractor device.So, when aforementioned for employing battery mould is manufactured concrete component, adopt and drive template system 300 to move horizontally in orbit in electric drive or hydraulic-driven to carry out assembled and form removal, be conducive to enhancing productivity, and the control accuracy improved concrete component size, thus improve the quality of the prefabricated components produced.In application process, can by driving drive system 200, movable formwork erection 304 be opened or close, be conducive to the assembled of mould and dismounting, and, when drive system 200 is single driving activity formwork erection 304, can single-unit activity formwork erection 304 operation in form removal process, can according to assembled order one by one prefabricated components hang mould, can prevent battery mould from toppling over.And can movement in orbit by control activity formwork erection 304, the assembled of battery mould and form removal can be carried out easily, be conducive to enhancing productivity.In addition, by arranging tensioning apparatus, after making template system split, there is continuous, thus make battery mould in process of production, prevent the seepage of cement mortar in particularly slip casting, vibratory compaction process, the strength grade of concrete component is conformed to design grade, effective guarantee is defined to the quality control of concrete component; And removably connect between second end and the second end of telescoping mechanism of connecting rod, then make the split of template system and form removal become very simple, reduce operation easier; In addition, if when being also provided with pressure control device on tensioning apparatus, then while fully can ensureing the split pressure of template system, can also prevent from causing die deformation to damage because of over-tension.
On the basis of above-described embodiment, in another embodiment of the utility model, described retractor device is oil cylinder or cylinder, and one end of described oil cylinder 22 or cylinder is connected with fixing formwork erection 303 by the first Connection Block, and the other end of described oil cylinder 22 or cylinder is connected with described connecting rod.The left end of described telescoping mechanism is also provided with the crook 27 in semi-surrounding shape, and the right-hand member of connecting rod is provided with the engaging portion matched with crook 27.So, by arranging tensioning apparatus 305, after making template system 300 split, there is continuous, thus make battery mould in process of production, prevent the seepage of cement mortar in particularly slip casting, vibratory compaction process, the strength grade of concrete component is conformed to design grade, effective guarantee is defined to the quality control of concrete component; And removably connect between second end and the second end of retractor device of connecting rod, then make the split of template system 300 and form removal become very simple, reduce operation easier; In addition, if when being also provided with pressure control device on tensioning apparatus 305, then while fully can ensureing the split pressure of template system 300, can also prevent from causing die deformation to damage because of over-tension.In addition, employing oil cylinder 22 or cylinder are used as the power source as tensioning apparatus 305, increase substantially the job stability of tensioning apparatus 305, and easily realize the control of tensioning dynamics, and, the other end adopts connecting rod, makes the connection of tensioning apparatus 305 very convenient and simple, reduces operation easier.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Fig. 1, Fig. 4 to Fig. 6, described rail system 100 can comprise two tracks 41, be provided with roller 412 in described track 41, at least side of described track 41 is provided with chute 43, and described roller 412 can roll and be arranged in described chute 43, described formwork erection is arranged on described roller 412, and described drive system 200 drives described roller 412 to move on track 41.Roller 412 can partly be arranged in chute 43, also can all be arranged in chute 43.So, by being provided with roller 412 in track 41, after roller 412 and track runner lock, the speed that template system 300 is assembled and dismantle can be increased substantially, particularly template system 300 defines stable snap close with drive system 200 and track 41 and is connected, increase substantially the stability of battery mould, template system 300 has not easily been toppled over, improves the security performance of battery mould.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figures 4 to 6, for preventing roller 412 from skidding off chute 43, in-flanges can be provided with at least one end at chute about 43 two ends, within described roller 412 is positioned at in-flanges.So, chute 43 is provided with in-flanges, roller 412 is positioned at after within in-flanges, roller 412 and track runner in-flanges form locking, template system 300 assembled and dismounting speed, particularly template system 300 can be increased substantially define stable snap close with drive system 200 and track 41 and be connected, increase substantially the stability of battery mould, template system 300 is not easily toppled over, improves the security performance of battery mould.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 7, described rail system 100 can also comprise track growing apparatus, described track growing apparatus comprises and increases track and be connected and fixed plate 110, and described growth track is by being connected and fixed plate 110 and being connected and fixed bolt 111 and being connected with track.So, by the length adopting the combination being connected and fixed plate 110 and track to increase track, can ensure that the axis of track is constant, decrease the distortion of battery mould, and, by increasing the unit number of track length and template system 300, the concrete component number that same set of battery mould is produced can be increased flexibly, or it can be made to produce mass concrete component.In addition, when equipment needs transport, the ultra-wide problem in transportation can be solved by described track growing apparatus, to transport.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 4 and Figure 8, described driving power source can be motor 44 or motor, described driving jockey comprises drive link 46 and gear, described track is provided with tooth bar 42, described driving power source is rotated by drive link 46 driven gear, and wheel and rack 42 relativity occurs and drives template system 300 to move.So, adopt motor 44 or motor driven gear wheel and drive template system 300 to move, gear and tooth bar 42 combine, can prevent template system 300 from producing trickle slip because of inertia, accurately can locate template system 300, and gear-rack drive power attenuation is little.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figures 1 to 8, rail system is used for prefabricated components battery mould, battery mould comprises the spaced formwork erection of polylith, rail system comprises two parallel orbits 41, also comprise idler wheel mechanism and actuating unit, idler wheel mechanism is arranged on the lower end of formwork erection, idler wheel mechanism comprises roller 412, idler wheel mechanism is matched with track 41 by roller 412, and actuating unit is connected with idler wheel mechanism, and actuating unit is walked in track 41 for driving described roller 412.As shown in Figure 5 and Figure 6, idler wheel mechanism can also comprise supporting seat and the first connecting axle 411, and the upper end of supporting seat is fixedly linked by the lower end of bolt 48 with formwork erection, and roller 412 is arranged at the lower end of supporting seat.The lower end of supporting seat is provided with connecting hole 49, and the first connecting axle 411 is arranged in connecting hole 49, and roller 412 is rotatably connected with supporting seat by the first connecting axle 411.Supporting seat specifically comprises the first supporting seat 410 and the second supporting seat 413, first supporting seat 410 is supported by two rollers 412, and the second supporting seat 413 is supported by a roller 412.This set-up mode, by supporting seat, formwork erection and roller 412 are coupled together, formwork erection is arranged on supporting seat, and structure is simple, practical.Actuating unit as shown in Figure 8, comprise gear, tooth bar 42 and the second connecting axle, tooth bar 42 is arranged on the upper surface of track 41, second connecting axle is arranged on supporting seat, and can rotate relative to supporting seat, gear then fixed cover is located on the second connecting axle, and wheel and rack 42 engages.This set-up mode, namely formwork erection is driven to move from the side of formwork erection, actuating unit comprises the second connecting axle and is fixedly installed on the gear of the second connecting axle, gear is used for coordinating with the tooth bar 42 of track 41 upper surface, second connecting axle is placed on supporting seat, when gear rolls on tooth bar 42, supporting seat can be driven to move by the second connecting axle, the accurate control to formwork erection position can be realized.Further, described actuating unit can also comprise drive link 46, the two ends of drive link 46 respectively with under same formwork erection, described second connecting axle of two of being positioned on same axis is connected.This set-up mode, namely drive formwork erection to move from the both sides of formwork erection, by drive link 46 on two tracks 41, two relative second connecting axles link together, realize the idler wheel mechanism interlock under same formwork erection, offset when preventing roller 412 from rolling, make the movement of formwork erection more stable.In addition, described gear can comprise the first gear 45 and the second gear 47, first gear 45 and the second gear 47 are fixedly installed on drive link 46 respectively, gear can also be other any possible quantity, concrete number is consistent with the quantity of track 41, tooth bar 42 is arranged on the upper surface of track 41, power transmission shaft is rotatably arranged on supporting seat, gear fixed cover is located at the two ends of power transmission shaft, and wheel and rack 42 engages, power source comprises output shaft, one end of output shaft is fixedly connected with one end of power transmission shaft, roll on tooth bar 42 for driving the multiple gears on power transmission shaft.This set-up mode, power source is directly connected with power transmission shaft, i.e. power source Direct driver power transmission shaft, and compared with previous embodiment, drive link 46 and the second connecting axle are integrated into a power transmission shaft, and structure is more simple, and install more convenient, use cost is lower.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 2 and Figure 9, described template system 300 can also comprise backform 11, described backform 11 is arranged at the top of described molding cavity, and the side of described backform 11 and limit mould 302 or formwork erection are rotatably connected.So, after backform 11 is arranged at the top of described molding cavity, after closing backform 11, slip casting method can be adopted to produce concrete component, and backform 11 can limit the height dimension of concrete component, meanwhile, also makes the smooth specification of the end face of concrete component; In addition; also overfall can be set on backform 11; air in concrete component formation die cavity can be discharged; also excessive slip casting can be overflowed simultaneously, fully ensure that concrete component is built full, effectively ensure that its product quality; and; the side of backform 11 and limit mould 302, side form or be rotatably connected every mould, then make the form removal of backform 11 and close tightly to become very convenient, be conducive to enhancing productivity.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 9 and Figure 10, described template system 300 can also comprise backform hold down gag 12, described backform hold down gag 12 comprises holder, pressing plate and fixing pluge, the first end of described holder and pressing plate is equipped with connecting hole, and the first end of described pressing plate is overlapped on holder, its second side pressure is located on backform, described holder is arranged on the end face of formwork erection, described fixing pluge is plugged in upper and lower connecting hole, for connecting described pressing plate and holder.So, by arranging backform hold down gag 12, make backform can bear the concrete component pressure that produces of slip casting in process of production, effectively prevent backform to be out of shape displacement, fully ensure that the size conforms designing requirement of concrete component, and, adopt the backform hold down gag 12 of aforementioned structure, make use of deadweight and lever construction dexterously, make it have self-locking ability, and matched moulds, form removal operation are simple.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 9 and Figure 10, described backform hold down gag 12, for compressing the backform 11 of prefabricated components battery mould, backform hold down gag 12 comprises holder 15, pressing plate 16 and latch 13, the first end of holder 15 and pressing plate 16 is equipped with connecting hole, and the first end of pressing plate 16 is overlapped on holder 15, latch 13 second end of connecting hole center platen 16 on holder 15 is also provided with pressure head 14, pressure head 14 and holder 15 are all positioned at the below of pressing plate 16, by arranging the pressure head 14 being used for clamping platen 16 in pressing plate 16 bottom, when pressing mold compresses backform 11, stress point is more concentrated, compress better effects if, in addition, the setting of pressure head 14, can produce certain gap, be conducive to the installation of pressure head 14 between pressing plate 16 and backform 11, moreover pressure head 14 can also overcome the impact that backform 11 brings with the upper end injustice of formwork erection.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Figure 1, described bed die 301 can be arranged at the bottom of described molding cavity, and described limit mould 302 can be arranged at the two sides of described molding cavity.So, when limit mould 302 is arranged at the two sides of described molding cavity, limit mould 302 is removed very convenient, particularly when producing the concrete component of different-thickness, the reserved adjustment width more than needed of limit mould 302 size, only need adjustment mold cavity width and do not need more to change sides mould 302, making same set of battery mould can produce the concrete component of multiple complete different-thickness size simultaneously, achieve one module multiple usages.
On the basis of above-described embodiment, in another embodiment of the utility model, the junction of described bed die 301, limit mould 302, backform and formwork erection can be provided with seal.So; bed die 301, limit mould 302, backform are or/and after the junction of mould is provided with seal; in the production process of concrete component; the seepage of cement mortar is prevented in particularly slip casting, vibratory compaction process; the strength grade of concrete component is conformed to design grade, effective guarantee is defined to the quality control of concrete component.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Fig. 1 and Figure 11, described template system 300 can also comprise bed die fixture 3011, described bed die fixture 3011 is arranged on the below of formwork erection and bed die 301, described one end of bed die fixture 3011 is fixedly connected with the bottom surface of formwork erection, and the other end is connected with the lower surface of bed die 301; Described bed die fixture 3011 comprises supporting seat and the stiff end that is arranged on supporting seat and adjustable side, and described stiff end is connected to the bottom of formwork erection, and described adjustable side is supported on the bottom surface of bed die 301.So, by the setting of bed die fixture 3011, operative constraint is formed to the position of bed die 301, it is prevented to be out of shape displacement in process of production, solve the problem of the easy seepage of traditional moulds bed die, in addition, if when bed die fixture 3011 is also provided with vertical lowering means, in dismounting mold process, vertical lowering means is only needed to move down, concrete component can be made to pass through from reforming small moving down, thus reach the effect of rapping, concrete component can not be adhered on side form.And described bed die fixture 3011 comprises supporting seat and the stiff end that is arranged on supporting seat and adjustable side, described stiff end is connected to the bottom of formwork erection, and described adjustable side is supported on the bottom surface of bed die.So, by the adjustment to adjustable side, bed die 301 height can be changed, thus make a set of battery mould can become to produce the concrete component of differing heights, achieve one module multiple usages.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Fig. 1 and Figure 11, described bed die fixture 3011 comprises supporting seat 05 and the stiff end be arranged on supporting seat 05 and adjustable side, stiff end is fixedly installed on the bottom of formwork erection, it highly immobilizes, and adjustable side its highly can regulate, it is arranged on the bottom surface of bed die.Stiff end specifically can comprise connecting plate 01, the lower surface of connecting plate 01 is arranged on supporting seat 05, the upper surface of connecting plate 01 is supported in the bottom surface of formwork erection, and connecting plate 01 can weld or riveted joint for non-removable with between formwork erection, also can connect for hinged bolt 02.In addition, stiff end also comprises boss 06, and boss 06 is specifically arranged between supporting seat 05 and connecting plate 01, and namely one end of boss 06 is connected with supporting seat 05, the other end of boss 06 is connected with connecting plate 01, and the sectional area of boss 06 is less than the base area of connecting plate 01.Adjustable side comprises adjustable for height gripper shoe 03, and gripper shoe 03, especially by connector, is fixedly installed on supporting seat 05, gripper shoe 03 is for supporting the lower surface of bed die, and gripper shoe 03 can arrange polylith, and its thickness is different, during use, expansion regulating mechanism adjuster height also can be set.In addition, also can arrange different-thickness brace table 04 between gripper shoe 03 and described supporting seat 05, being fixedly connected with gripper shoe 03 of brace table 04, for convenience of dismounting, brace table 04 and supporting seat 05 are for removably connecting.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in figs. 1 and 12, described template system 300 can also comprise the limit mould jockey 3021 be arranged on formwork erection side end face, described limit mould jockey 3021 can comprise fixed head 51 and at least one piece of active plate, described active plate is vertically installed on fixed head 51, described active plate has and is flexibly connected hole 54, be provided with dismountable connector in described flexible connection hole 54, connected by described limit mould jockey 3021 between described formwork erection and Bian Mo 302; Described flexible connection hole 54 is mounting hole or elongate holes.So, by arranging limit mould jockey 3021, be template system 300 define can the combining structure of assembled, detachable, changeable, and, limit mould jockey 3021 template system 300 can be held tightly formed overall; In addition, be provided with dismountable connector in flexible connection hole 54 after, the assembled and dismounting of limit mould jockey 3021 is very convenient, reduces the assembled of battery mould and dismounting difficulty.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in figure 12, described active plate comprises the first connecting plate 52 and the second connecting plate 57, first connecting plate 52 and the second connecting plate 57 be arranged in parallel, first connecting plate 52 and the second connecting plate 57 have coaxial flexible connection hole 54, and latch is arranged in the first connecting plate 52 and the corresponding flexible connection hole 54 of the second connecting plate 57 simultaneously.Described latch can for establishing and first latch 55 on first gripper shoe 58 left side and the second latch 56 be located on the right of the first gripper shoe 58.In addition, the second gripper shoe 59 can also be provided with above the first gripper shoe 58; Second gripper shoe 59 is positioned at above the first connecting plate 52 simultaneously, and all vertical with fixed head 51 with the first connecting plate 52, plays further booster action.In addition, the 3rd gripper shoe 510 can also be set below described first gripper shoe 58; 3rd gripper shoe 510 is also positioned at below the second connecting plate 57 simultaneously, and all vertical with fixed head 51 with the second connecting plate 57, plays the effect strengthened further.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in figure 13, described connecting rod comprises first connecting rod 21 and second connecting rod 26, the left end of first connecting rod 21 and the right-hand member of second connecting rod 26 are by the first pinned connection, the right-hand member of first connecting rod 21 and the connection of telescoping mechanism, the left end of second connecting rod 26 is connected with mobile mould, particularly, the right-hand member of first connecting rod 21 and the left end of second connecting rod 26 are equipped with pin-and-hole, first bearing pin is inserted with in pin-and-hole, and first connecting rod 21 and second connecting rod 26 are linked together.This set-up mode, the length of tensioning apparatus is adjustable.
On the basis of above-described embodiment, in another embodiment of the utility model, as shown in Fig. 1 and Figure 14, described prefabricated components battery mould can also comprise grouting device 306, described grouting device 306 comprises feed pipe 31, filling tube 34 and stifled core 33, the tube wall of described filling tube 34 has charging aperture, the discharging opening of described feed pipe 31 is connected with the charging aperture of described filling tube 34, described stifled core 33 is removably set in filling tube 34, and described stifled core 33 can be opened or the charging aperture of filling tube 34 described in shutoff and/or discharging opening under predetermined state; The outer end of described stifled core 33 is provided with catch bar 35, and described stifled core 33 can move around along the inwall of filling tube 34 under the effect of catch bar 35.In addition, can be provided with the rotating disk 32 for rotating catch bar 35 in one end of described catch bar 35, described rotating disk 32 is fixedly connected with described catch bar 35.Further, described grouting device 306 can also comprise bracing frame 36, and bracing frame 36 can offer hole, and catch bar 35 is arranged in described hole.So, because the stifled inner face of core 33 and the working face of template flush, can fully prevent concreting from completing and after harden, form concrete bolt thus cause cannot the situation appearance of the demoulding in discharge outlet.And catch bar 35 is provided with in the outer end of stifled core 33, described stifled core 33 can move around along the inwall of filling tube 34 under the effect of catch bar 35, like this after slip casting completes, stifled core 33 can be advanced and block grouting port, prevents excessive slip casting.
On the basis of above-described embodiment, in another embodiment of the utility model, described grouting device 306 can be arranged on described limit mould 302 or bed die 301 or backform.Like this, can need the position arranging grouting device 306 according to different, convenient manipulation grouting device 306, improves slip casting efficiency.
On the basis of above-described embodiment; in another embodiment of the utility model; described prefabricated components battery mould can also comprise prefabricated component internal styling device, and described prefabricated component internal styling device is the dividing plate be arranged in described molding cavity, projection, groove or splicing chunk.So, then correspondingly can correspondingly form pit, hole, projection, raised line, windowsill, locker etc. on concrete component, fully meet the diversity requirement of concrete component.
On the basis of above-described embodiment, in another embodiment of the utility model, as depicted in figs. 1 and 2, described prefabricated components battery mould can also comprise protector 307, and described protector 307 piecemeal is arranged on formwork erection and/limit mould 302 top.So, because battery mould height is comparatively large, the setting of protector 307, making operating personnel when overhauling or form removal lifts concrete component, forming good protection, prevent the generation of security incident to operating personnel.
On the basis of above-described embodiment, in another embodiment of the utility model, described prefabricated components battery mould can also comprise heating apparatus, and described heating apparatus is the electric heat source, liquid state or the gaseous medium heating source that are arranged on described template system 300.So, low temp area in the winter time, temperature is too low makes concrete setting rate reduce, and likely cause concrete to be damaged by frost, and after battery mould arranges heating apparatus, by heating maintenance, battery mould normal use at low ambient temperatures can be ensured; And heating apparatus is the electric heat source, liquid state or the gaseous medium heating source that are arranged on described template system 300, then can select mode of heating flexibly according to working condition.
On the basis of above-described embodiment; in another embodiment of the utility model; described prefabricated components battery mould can also comprise form height adjusting device; described form height adjusting device is that backform or bed die 301 regulate height and position by magnetic holder fixture, and described magnetic holder fixture is electromagnetism box fixture.So, the height of the inner molding cavity of template system 300 can be changed by adjusting template arrangement for adjusting height, thus realize the concrete component simultaneously can producing multiple complete differing heights size at same set of battery mould, achieve one module multiple usages; And when to be backform or bed die 301 regulate height and position by magnetic holder fixture to form height adjusting device, backform is or/and the position of bed die 301 can be arranged flexibly; When fixture adopts electromagnetism box, then do not need to destroy template system 300, the installation site of form height adjusting device can be arranged on any position according to the size requirements of concrete component, make same set of battery mould can produce the concrete component of multiple complete differing heights size simultaneously, achieve one module multiple usages.In addition, when adopting electromagnetism box fixture, the additional and subduction of magnetic is very convenient, but also can slowly increase progressively magnetic dynamics, is not easy to cause wink to inhale to operating personnel and crushes, significant to safety in production.
On the basis of above-described embodiment; in another embodiment of the utility model; described prefabricated components battery mould can also comprise template width adjusting device, and to be described bed die 301 regulate height and position by oil cylinder or gear or cam or tooth bar or draw-in groove to described template width adjusting device.So, the thickness of concrete component formation cavity can be changed by adjusting template width adjusting device, make same set of battery mould can produce the concrete component of multiple complete different-thickness size simultaneously, achieve one module multiple usages.
On the basis of above-described embodiment; in another embodiment of the utility model; as shown in figure 15; described prefabricated components battery mould can also comprise prefabricated component core-pulling device; described core-pulling device comprises some independently sub-drawing core pipes 61; described sub-drawing core pipe 61 is made up of steel pipe, and at least one lateral wall of described sub-drawing core pipe 61 is provided with elastomer or brush 63, and described elastomer or brush 63 are arranged on the relative face of adjacent sub-drawing core pipe 61.In addition, core-pulling mechanism 62 can also be provided with in one end of sub-drawing core pipe 61.So, by arranging core-pulling device, thus make battery mould can produce core-drawing pore-creating concrete component, and described core-pulling device comprises some independently sub-drawing core pipes 61, sub-drawing core pipe 61 is made up of steel pipe, at least one lateral wall of described sub-drawing core pipe 61 is provided with elastomer or brush, elastomer or brush are formed and good block effect in concrete placement, prevent cast-in-place concrete from pouring into hollow concrete member inner chamber, fully ensure that the complete Sum fanction of hollow concrete member internal cavities, and in the process of loosing core, elastomer or brush can discharge rapping space, the difficulty that makes to loose core significantly is reduced, and, even if loose core when concrete solidifies not yet completely, also can not adhere to because of concrete damage drawing core pipe causing concrete component, fully ensure that the total quality of concrete component.And elastomer or brush are arranged on the relative face of adjacent sub-drawing core pipe 61, all there is compression stroke between adjacent so sub-drawing core pipe 61, can fully ensure deviating from smoothly of core pipe.
On the basis of above-described embodiment, in another embodiment of the utility model, described template system is provided with vibratory compaction device, described vibratory compaction device is arranged in described prefabricated component core-pulling device.By being arranged on the core mould vibrating bar in prefabricated component core-pulling device, in the process of producing concrete component, fine gas bubbles vibration in concrete slurry can be discharged, effectively prevent concrete component internal density hollowing phenomenon that is uneven, that formed because of bubble from occurring, improve the packing of concrete component, fully can ensure that the intensity of concrete component reaches designing requirement.
On the basis of above-described embodiment, in another embodiment of the utility model, described template system is provided with vibratory compaction device, described vibratory compaction device can for being arranged on vibrating head or vibrating motor on described template system 300.By being arranged on vibrating head on template system 300 or vibrating motor, in the process of producing concrete component, fine gas bubbles vibration in concrete slurry can be discharged, effectively prevent concrete component internal density hollowing phenomenon that is uneven, that formed because of bubble from occurring, improve the packing of concrete component, fully can ensure that the intensity of concrete component reaches designing requirement.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.