CN215056509U - Door pocket structure capable of being assembled and installed quickly - Google Patents

Abstract

The utility model discloses a quick combination mounting door pocket structure, which comprises a first clamping plate, wherein a second clamping plate is fixedly mounted above the first clamping plate, a door frame is fixedly mounted at the rear side of the second clamping plate, and a first limiting plate is fixedly mounted above the door frame; a combination door pocket of assembling through the multimode piece, adopt a structure of assembling the composite mounting fast, accessible mechanical type scene composite mounting door pocket, when follow-up maintenance or need change the door frame size, the door pocket is dismantled on the scene to the accessible, with trading other size parts and need not direct destruction, and then reach the purpose that reduces the construction degree of difficulty and material cost, in this device, through setting up a plurality of groups of cardboards, with portal and wall body block, set up the limiting plate again between the face of being connected of portal and wall body, change and the distance between the wall body, all there is the draw-in groove on every group limiting plate simultaneously, can continue to install the limiting plate on the limiting plate, in order to reach more stable installation effect.

Description

Door pocket structure capable of being assembled and installed quickly

Technical Field

The utility model relates to a door pocket technical field specifically is a door pocket structure of fast assembly installation.

Background

Door pocket is a building decoration term, refers to two door frames inside and outside the door, also directly called door frames. The main functions of the door are to fix the door leaf and protect the corner, decoration and the like, and the door is usually used for protecting the door from being scratched, corroded, damaged, stained and the like in the decoration process.

Traditional wood system door head installation is inconvenient, adopts the mode of foamer to construct the installation, and the mounting that needs the location after the equipment is accomplished is fixed, and current door pocket size adjustment is less can not adjust even, and it is inconvenient all to need the customization processing to the installation of different wall body thickness, and the use gluing agent installation of current door pocket is very difficult to later maintenance and with the dismantlement of trading.

Therefore, a door pocket structure capable of being assembled and installed quickly is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a door pocket structure of quick aggregate erection, adaptation door pocket and wall body interval, the maintenance is changed in convenient dismantlement simultaneously, it is inconvenient to propose traditional wood system door head installation in solving above-mentioned background art, the mode that adopts the foamer is under construction and is installed, the mounting that needs the location after the equipment is accomplished is fixed, and current door pocket size modulation is less can not adjust even, it is inconvenient all to need the customization processing to the installation of different wall body thickness, the installation of the use gluing agent of current door pocket, to the very difficult problem of dismantlement of later maintenance and follow trade.

In order to achieve the above object, the utility model provides a following technical scheme: a door pocket structure capable of being quickly assembled and installed comprises a first clamping plate, wherein a second clamping plate is fixedly installed above the first clamping plate, a door frame is fixedly installed on the rear side of the second clamping plate, a first limiting plate is fixedly installed above the door frame, a first clamping groove is formed in the door frame, a door frame is fixedly installed in the door frame, a fixing hole is formed in the top end of the door frame, a second limiting plate is fixedly installed on the right side of the door frame, a second clamping groove is formed in the rear side of the fixing hole, a notch is formed in the right end of the second clamping groove, a third clamping groove is formed in the lower portion of the second clamping groove, a fourth clamping groove is formed in the lower portion of the notch, a fifth clamping groove is formed in the right side of the fourth clamping groove, a sixth clamping groove is formed in the top end of the first limiting plate, a seventh clamping groove is formed in the lower portion of the sixth clamping groove, and a connecting plate is fixedly installed at the bottom end of the first limiting plate, the top fixed mounting of connecting plate has the connecting block, fixed mounting has the baffle on the second cardboard, the place ahead fixed mounting of baffle has the picture peg.

Through adopting the above technical scheme, be equipped with first draw-in groove between portal and the door frame, insert first cardboard and second cardboard in the first draw-in groove, make portal and wall connection, and the draw-in groove has all been seted up to four terminal surfaces about the portal, be used for connecting first limiting plate and second limiting plate, shorten portal and wall body interval, reach the effect with portal and wall body block, the draw-in groove has all been seted up on every first limiting plate of group and every second limiting plate of group simultaneously, the draw-in groove structure is the same with the draw-in groove structure on the portal, make all can continue to install the limiting plate on every limiting plate of group, reach the effect that adapts to different distance sizes.

Preferably, the connecting block is connected with the second clamping groove through a clamping block, the connecting plate is connected with the third clamping groove through a clamping block, the sixth clamping groove and the second clamping groove are identical in structure, and the seventh clamping groove and the third clamping groove are identical in structure.

Through adopting above-mentioned technical scheme, utilize the block of connecting block and second draw-in groove, and the block of connecting plate and third draw-in groove, with first limiting plate and portal zonulae occludens, simultaneously because sixth draw-in groove is the same with second draw-in groove structure, seventh draw-in groove is the same with third draw-in groove structure, can set up the first limiting plate of multiunit, the successive layer block makes things convenient for portal adaptation and wall body interval.

Preferably, the cross section structures of the first limiting plate and the second limiting plate are the same, the connecting plate on the second limiting plate is connected with the fourth clamping groove through a clamping manner, and the connecting block on the second limiting plate is connected with the fifth clamping groove through a clamping manner.

Through adopting above-mentioned technical scheme, with the right-hand member block of second limiting plate and portal, simultaneously because first limiting plate is the same with second limiting plate cross sectional structure, can set up multiunit second limiting plate, the successive layer block makes things convenient for portal adaptation and wall body interval, reaches aggregate erection's effect.

Preferably, the second clamping groove and the third clamping groove are respectively provided with two groups, one group of the second clamping groove and one group of the third clamping groove are arranged at the top end of the portal frame, the other group of the second clamping groove and one group of the third clamping groove are arranged at the bottom end of the portal frame, the fourth clamping groove and the fifth clamping groove are respectively provided with two groups, one group of the fourth clamping groove and one group of the fifth clamping groove are arranged at the left end of the portal frame, and the other group of the fourth clamping groove and one group of the fifth clamping groove are arranged at the right end of the portal frame.

Through adopting above-mentioned technical scheme, second draw-in groove and third draw-in groove have all been seted up to the top and the bottom of portal, can be used to install first limiting plate, and fourth draw-in groove and fifth draw-in groove have all been seted up at both ends about the portal, can be used to install the second limiting plate.

Preferably, the first limiting plate and the second limiting plate are respectively provided with two groups, one group of the first limiting plate is arranged at the top end of the gantry, the other group of the first limiting plate is arranged at the bottom end of the gantry, one group of the second limiting plate is arranged at the left end of the gantry, and the other group of the second limiting plate is arranged at the right end of the gantry.

Through adopting above-mentioned technical scheme, four ends about the upper and lower of portal all can install the limiting plate, conveniently adjusts portal and wall body interval, reaches better linkage effect, guarantees the stability of connecting.

Preferably, the length of the first limiting plate is the same as that of the second clamping groove, and the length of the second limiting plate is the same as that of the gantry.

Through adopting above-mentioned technical scheme, after the first limiting plate of installation, first limiting plate covers the region of second draw-in groove, and the notch can be omitted outside, installs the second limiting plate, and the second limiting plate can be filled the notch completely, guarantees portal and wall body's joint strength and stability.

Preferably, the baffle plate and the inserting plate are integrally formed, and the inserting plate is connected with the first clamping groove through clamping.

Through adopting above-mentioned technical scheme, integrated into one piece can guarantee the structural strength of second cardboard, and after the installation picture peg, baffle and wall connection are injectd the position of portal.

Preferably, the first clamping grooves are provided with two groups, one group of the first clamping grooves is arranged on the front side of the door frame in a surrounding mode, the other group of the first clamping grooves is arranged on the back side of the door frame in a surrounding mode, and the two groups of the first clamping grooves are not communicated with each other.

Through adopting above-mentioned technical scheme, because picture peg and first draw-in groove block are connected, can all install the sub-assembly that contains the picture peg on the front of portal and the back, reach the effect of prescribing a limit to the portal position.

Preferably, the cross section structures of the second clamping plates are the same as those of the first clamping plates, four groups of the second clamping plates are arranged, two groups of the second clamping plates are arranged on the front side and the rear side of the top end of the portal frame, and the other two groups of the second clamping plates are arranged on the front side and the rear side of the bottom end of the portal frame.

Through adopting above-mentioned technical scheme, all install the second cardboard on the top of both sides around the portal and after the bottom, can want the restriction effect to the portal more stably, and because the second cardboard is the same with first cardboard cross section structure, first cardboard can first draw-in groove block connection equally.

Preferably, the first clamping plates are provided with four groups, wherein two groups of the first clamping plates are arranged on the front side and the rear side of the left end of the gantry, and the other two groups of the first clamping plates are arranged on the front side and the rear side of the right end of the gantry.

Through adopting above-mentioned technical scheme, the first cardboard of four groups is installed in the front and back both sides at both ends about the portal, plays the limited effect to the portal, also plays the effect of shielding portal and wall body clearance simultaneously, and is more pleasing to the eye.

Compared with the prior art, the beneficial effects of the utility model are that: a combination door pocket of assembling through the multimode piece, adopt a structure of assembling the composite mounting fast, accessible mechanical type scene composite mounting door pocket, when follow-up maintenance or need change the door frame size, the door pocket is dismantled on the scene to the accessible, with trading other size parts and need not direct destruction, and then reach the purpose that reduces the construction degree of difficulty and material cost, in this device, through setting up a plurality of groups of cardboards, with portal and wall body block, set up the limiting plate again between the face of being connected of portal and wall body, change and the distance between the wall body, all there is the draw-in groove on every group limiting plate simultaneously, can continue to install the limiting plate on the limiting plate, in order to reach more stable installation effect.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention;

fig. 2 is a schematic structural view of the gantry of the present invention;

FIG. 3 is an enlarged view of the structure at the position A of the present invention;

fig. 4 is a schematic diagram of a first limiting plate structure of the present invention;

fig. 5 is a schematic structural view of the second clamping plate of the present invention.

In the figure: 1. a first clamping plate; 2. a second clamping plate; 3. a gantry; 4. a first limit plate; 5. a first card slot; 6. a fixing hole; 7. a second limiting plate; 8. a door frame; 9. a second card slot; 10. a recess; 11. a third card slot; 12. a fourth card slot; 13. a fifth card slot; 14. a sixth card slot; 15. a seventh card slot; 16. connecting blocks; 17. a connecting plate; 18. a baffle plate; 19; and (4) inserting plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution of a rapid assembled and installed door pocket structure: a door pocket structure capable of being quickly assembled and installed is disclosed, as shown in figures 1 to 5, and comprises a first clamping plate 1, a second clamping plate 2 is fixedly installed above the first clamping plate 1, a door frame 3 is fixedly installed at the rear side of the second clamping plate 2, a first limiting plate 4 is fixedly installed above the door frame 3, a first clamping groove 5 is formed in the door frame 3, a door frame 8 is fixedly installed in the door frame 3, a fixing hole 6 is formed in the top end of the door frame 3, a second limiting plate 7 is fixedly installed on the right side of the door frame 3, a second clamping groove 9 is formed in the rear side of the fixing hole 6, a notch 10 is formed in the right end of the second clamping groove 9, a third clamping groove 11 is formed in the lower portion of the second clamping groove 9, a fourth clamping groove 12 is formed in the lower portion of the notch 10, a fifth clamping groove 13 is formed in the right side of the fourth clamping groove 12, a sixth clamping groove 14 is formed in the top end of the first limiting plate 4, a seventh clamping groove 15 is formed in the lower portion of the sixth clamping groove 14, the bottom end of the first limiting plate 4 is fixedly provided with a connecting plate 17, a connecting block 16 is fixedly arranged above the connecting plate 17, a baffle 18 is fixedly arranged on the second clamping plate 2, and an inserting plate 19 is fixedly arranged in front of the baffle 18.

Through adopting the above technical scheme, be equipped with first draw-in groove 5 between portal 3 and the door frame 8, insert first cardboard 1 and second cardboard 2 in first draw-in groove 5, make portal 3 and wall connection, and the draw-in groove has all been seted up to four terminal surfaces about the portal, be used for connecting first limiting plate 4 and second limiting plate 7, shorten portal 3 and wall body interval, reach the effect with portal 3 and wall body block, the draw-in groove has all been seted up on every first limiting plate 4 of group and every second limiting plate 7 simultaneously, the draw-in groove structure is the same with the draw-in groove structure on the portal, make all can continue to install the limiting plate on every limiting plate of group, reach the effect of adapting to different distance sizes.

Specifically, as shown in fig. 3 and 4, the connecting block 16 is connected with the second card slot 9 through a snap fit, the connecting plate 17 is connected with the third card slot 11 through a snap fit, the sixth card slot 14 is identical in structure with the second card slot 9, and the seventh card slot 15 is identical in structure with the third card slot 11.

Through adopting above-mentioned technical scheme, utilize the block of connecting block 16 and second draw-in groove 9, and the block of connecting plate 17 and third draw-in groove 11, with first limiting plate 4 and portal 3 zonulae occludens, simultaneously because sixth draw-in groove 14 is the same with second draw-in groove 9 structure, seventh draw-in groove 15 is the same with third draw-in groove 11 structure, can set up the first limiting plate 4 of multiunit, and the successive layer block makes things convenient for portal 3 to adapt to and the wall body interval.

Specifically, as shown in fig. 3, the cross-sectional structures of the first limiting plate 4 and the second limiting plate 7 are the same, the connecting plate 17 on the second limiting plate 7 is connected with the fourth engaging groove 12 through a snap fit, and the connecting block 16 on the second limiting plate 7 is connected with the fifth engaging groove 13 through a snap fit.

Through adopting above-mentioned technical scheme, with the right-hand member block of second limiting plate 7 and portal 3, simultaneously because first limiting plate 4 is the same with 7 cross section structures of second limiting plate, can set up multiunit second limiting plate 7, the successive layer block makes things convenient for portal 3 adaptation and wall body interval, reaches aggregate erection's effect.

Specifically, as shown in fig. 1 to 3, two sets of second card slots 9 and two sets of third card slots 11 are respectively provided, wherein one set of second card slots 9 and one set of third card slots 11 are provided at the top end of the gantry 3, the other set of second card slots 9 and one set of third card slots 11 are provided at the bottom end of the gantry 3, two sets of fourth card slots 12 and two sets of fifth card slots 13 are respectively provided, one set of fourth card slots 12 and one set of fifth card slots 13 are provided at the left end of the gantry 3, and the other set of fourth card slots 12 and one set of fifth card slots 13 are provided at the right end of the gantry 3.

Through adopting above-mentioned technical scheme, second draw-in groove 1 and third draw-in groove 11 have all been seted up on the top and the bottom of portal 3, can be used to install first limiting plate 4, and fourth draw-in groove 12 and fifth draw-in groove 13 have all been seted up at both ends about portal 3, can be used to install second limiting plate 7.

Specifically, as shown in fig. 1, the first limiting plate 4 and the second limiting plate 7 are respectively provided with two sets, wherein one set of the first limiting plate 4 is installed at the top end of the gantry 3, the other set of the first limiting plate 4 is installed at the bottom end of the gantry 3, one set of the second limiting plate 7 is installed at the left end of the gantry 3, and the other set of the second limiting plate 7 is installed at the right end of the gantry 3.

Through adopting above-mentioned technical scheme, four ends about portal 3 about, all can install the limiting plate, conveniently adjust portal 3 and wall body interval, reach better linkage effect, guarantee the stability of connecting.

Specifically, as shown in fig. 3, the length of the first limiting plate 4 is the same as the length of the second slot 9, and the length of the second limiting plate 7 is the same as the height of the gantry 3.

Through adopting above-mentioned technical scheme, after the first limiting plate 4 of installation, first limiting plate covers the region of second draw-in groove 9, and notch 10 can be omitted outside, installs second limiting plate 7, and second limiting plate 7 can be filled notch 10 completely, guarantees portal 3 and the joint strength and the stability of wall body.

Specifically, as shown in fig. 5, the blocking plate 18 and the insertion plate 19 are integrally formed, and the insertion plate 19 and the first engaging groove 5 are connected by engaging.

Through adopting above-mentioned technical scheme, integrated into one piece can guarantee the structural strength of second cardboard 2, and after installation picture peg 19, baffle 18 is connected with the wall body, prescribes a limit to the position of portal 3.

Specifically, as shown in fig. 1, two sets of first card slots 5 are formed, wherein one set of first card slots 5 is formed around the front side of the gantry 3, the other set of first card slots 5 is formed around the back side of the gantry 3, and the two sets of first card slots 5 are not communicated with each other.

By adopting the technical scheme, because the inserting plate 19 is clamped and connected with the first clamping groove 5, the front surface and the back surface of the portal 3 can be provided with the combined piece containing the inserting plate 19, and the effect of limiting the position of the portal 3 is achieved.

Specifically, as shown in fig. 1, the cross-sectional structure is the same between the second clamping plate 2 and the first clamping plate 1, the second clamping plate 2 is provided with four groups, wherein two groups of second clamping plates 2 are arranged on the front side and the rear side of the top end of the gantry 3, and the other two groups of second clamping plates 2 are arranged on the front side and the rear side of the bottom end of the gantry 3.

Through adopting above-mentioned technical scheme, all install second cardboard 2 after the top and the bottom of both sides around portal 3, can want the restriction effect to portal 3 more stable, and because second cardboard 2 is the same with 1 cross sectional structure of first cardboard, first cardboard 1 equally can 5 block connections of first draw-in groove.

Specifically, as shown in fig. 1, the first clamping plates 1 are provided with four groups, wherein two groups of the first clamping plates 1 are arranged on the front side and the rear side of the left end of the gantry 3, and the other two groups of the first clamping plates 1 are arranged on the front side and the rear side of the right end of the gantry 3.

Through adopting above-mentioned technical scheme, four first cardboard 1 of group install both sides around the portal 3 left and right sides, play the limited effect to portal 3, also play the effect of shielding portal 3 and wall body clearance simultaneously, and are more pleasing to the eye.

The working principle is as follows: be equipped with first draw-in groove 5 between portal 3 and the door frame 8, insert first cardboard 1 and second cardboard 2 in first draw-in groove 5, make portal 3 and wall connection, and the draw-in groove has all been seted up to four terminal surfaces about the portal, be used for connecting first limiting plate 4 and second limiting plate 7, shorten portal 3 and wall body interval, reach the effect with portal 3 and wall body block, the draw-in groove has all been seted up on every first limiting plate of group 4 and every second limiting plate of group 7 simultaneously, the draw-in groove structure is the same with the draw-in groove structure on the portal, make all can continue to install the limiting plate on every limiting plate of group, reach the effect that adapts to different distance sizes.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a door pocket structure of fast assembly installation, includes first cardboard (1), its characterized in that: a second clamping plate (2) is fixedly arranged above the first clamping plate (1), a portal frame (3) is fixedly arranged at the rear side of the second clamping plate (2), a first limiting plate (4) is fixedly arranged above the portal frame (3), a first clamping groove (5) is formed in the portal frame (3), a door frame (8) is fixedly arranged in the portal frame (3), a fixing hole (6) is formed in the top end of the portal frame (3), a second limiting plate (7) is fixedly arranged on the right side of the portal frame (3), a second clamping groove (9) is formed in the rear side of the fixing hole (6), a notch (10) is formed in the right end of the second clamping groove (9), a third clamping groove (11) is formed in the lower portion of the second clamping groove (9), a fourth clamping groove (12) is formed in the lower portion of the notch (10), a fifth clamping groove (13) is formed in the right side of the fourth clamping groove (12), sixth draw-in groove (14) have been seted up on the top of first limiting plate (4), seventh draw-in groove (15) have been seted up to the below of sixth draw-in groove (14), the bottom fixed mounting of first limiting plate (4) has connecting plate (17), the top fixed mounting of connecting plate (17) has connecting block (16), fixed mounting has baffle (18) on second cardboard (2), the place ahead fixed mounting of baffle (18) has picture peg (19).

2. The quick assemble installation jamb structure of claim 1, wherein: the connecting block (16) is connected with the second clamping groove (9) in a clamping mode, the connecting plate (17) is connected with the third clamping groove (11) in a clamping mode, the sixth clamping groove (14) is identical to the second clamping groove (9) in structure, and the seventh clamping groove (15) is identical to the third clamping groove (11) in structure.

3. The quick assemble installation jamb structure of claim 1, wherein: the cross section structure between the first limiting plate (4) and the second limiting plate (7) is the same, the connecting plate (17) on the second limiting plate (7) is connected with the fourth clamping groove (12) through clamping, and the connecting block (16) on the second limiting plate (7) is connected with the fifth clamping groove (13) through clamping.

4. The quick assemble installation jamb structure of claim 1, wherein: second draw-in groove (9) and third draw-in groove (11) respectively are provided with two sets ofly, and wherein a set of second draw-in groove (9) and a set of third draw-in groove (11) are seted up on the top of portal (3), and the bottom in portal (3) is seted up in another a set of second draw-in groove (9) and a set of third draw-in groove (11), fourth draw-in groove (12) and fifth draw-in groove (13) respectively are provided with two sets ofly, and wherein a set of fourth draw-in groove (12) and a set of fifth draw-in groove (13) are seted up at the left end of portal (3), and the right-hand member in portal (3) is seted up in another a set of fourth draw-in groove (12) and a set of fifth draw-in groove (13).

5. The quick assemble installation jamb structure of claim 1, wherein: the first limiting plate (4) and the second limiting plate (7) are respectively provided with two sets, wherein one set of first limiting plate (4) is installed on the top of the portal frame (3), the other set of first limiting plate (4) is installed at the bottom of the portal frame (3), one set of second limiting plate (7) is installed at the left end of the portal frame (3), and the other set of second limiting plate (7) is installed at the right end of the portal frame (3).

6. The quick assemble installation jamb structure of claim 1, wherein: the length of the first limiting plate (4) is the same as that of the second clamping groove (9), and the length of the second limiting plate (7) is the same as that of the gantry (3).

7. The quick assemble installation jamb structure of claim 1, wherein: the baffle plate (18) and the inserting plate (19) are integrally formed, and the inserting plate (19) is connected with the first clamping groove (5) through clamping.

8. The quick assemble installation jamb structure of claim 1, wherein: the first clamping grooves (5) are provided with two groups, one group of the first clamping grooves (5) surrounds the front surface of the portal frame (3), the other group of the first clamping grooves (5) surrounds the back surface of the portal frame (3), and the two groups of the first clamping grooves (5) are not communicated with each other.

9. The quick assemble installation jamb structure of claim 1, wherein: the cross section structures between the second clamping plates (2) and the first clamping plates (1) are the same, four groups of the second clamping plates (2) are arranged, two groups of the second clamping plates (2) are arranged on the front side and the rear side of the top end of the portal frame (3), and the other two groups of the second clamping plates (2) are arranged on the front side and the rear side of the bottom end of the portal frame (3).

10. The quick assemble installation jamb structure of claim 1, wherein: the first clamping plates (1) are provided with four groups, wherein two groups of the first clamping plates (1) are arranged on the front side and the rear side of the left end of the portal frame (3), and the other two groups of the first clamping plates (1) are arranged on the front side and the rear side of the right end of the portal frame (3).

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