CN217106433U - Multifunctional protection device for building safety - Google Patents

Abstract

The application discloses a multifunctional protection device for building safety, which comprises a coaming, a bottom plate and a solar cell panel; the solar cell panel is characterized in that the top ends of the enclosing plates on two sides of the solar cell panel are fixedly provided with fixed plates, the two ends of the front side of the solar cell panel are fixedly provided with movable plates, and the movable plates are all slidably connected with movable cylinders. Through solar cell panel's adjustable design, the position is adjusted according to the bounding wall installation time, also can accomodate solar cell panel to the bounding wall inboard when not using, can be better protect solar cell panel, and can accomodate the formula design, conveniently move the bounding wall, supplementary fagging can still be accomodate to the bounding wall side with the rotation fagging and deposit, avoid influencing the bounding wall transport, the angle when conveniently establishing according to enclosing is adjusted, protector's suitability has been improved, but and the split type design between the bounding wall, make things convenient for independent split type transport of bounding wall and accomodate, protector's suitability has been improved.

Description

Multifunctional protection device for building safety

Technical Field

The application relates to a protection device, in particular to a multifunctional protection device for building safety.

Background

Building site is when the construction, for the safety, can erect safety device around the building site, the safety boarding passes through the staple to be fixed on ground, avoids irrelevant personnel to get into, and partial safety boarding is in the environmental protection, can erect solar cell panel on the top, through absorbing the sunlight, directly or indirectly convert solar radiation energy into the electric energy through photoelectric effect or photochemical effect, then throw light on etc. at night through the electric energy for protector's function is more comprehensive perfect.

Traditional solar cell panel who protects bounding wall top all is the snap-on in the bounding wall top, when using, can't enclose angle etc. when establishing according to the bounding wall and adjust, and when the transport, because solar cell panel's the great comparatively hard when transport with the transportation of volume, can't pack the back with the panel during the transport and move, has reduced the convenience when protector uses. Therefore, a multifunctional protection device for building safety is provided to solve the problems.

Disclosure of Invention

The utility model provides a multi-functional protector for building safety is used for solving the inconvenient problem of accomodating of solar cell regulation on the multi-functional protector among the prior art in this embodiment.

According to one aspect of the application, a multifunctional protection device for building safety is provided, which comprises a coaming, a bottom plate and a solar panel; the bounding wall top of solar cell panel both sides all is fixed with the fixed plate, solar cell panel front side both ends all are fixed with the movable plate, and the inside sliding connection all has the removal cylinder of movable plate, the one end that the removal cylinder is close to the fixed plate all is fixed with connecting screw, the one end that connecting screw extends to the movable plate outside all runs through to the fixed plate outer end, two the fixed plate is inside all seted up with connecting screw complex adjustment tank, two all cup jointed first clamp splice through the screw hole screw thread on the connecting screw in the fixed plate outside, the side all is provided with auxiliary structure around the bounding wall, the bounding wall side is provided with connection structure.

Further, auxiliary knot constructs including supplementary fagging, the all symmetries in side are provided with supplementary fagging, every on the bounding wall lateral wall of supplementary fagging both sides all be fixed with limiting plate, every supplementary fagging top both sides all are fixed with the removal screw rod, and remove the screw rod all with the inside movable groove sliding connection who offers of limiting plate, the one end that the removal screw rod extends to the limiting plate outside all thread bush is equipped with the second clamp splice, every supplementary fagging bottom front side all is provided with rotates the fagging, supplementary fagging bottom both sides all are provided with the connecting block, and the connecting block bottom all fixes on rotating the fagging, every supplementary fagging bottom one side all is fixed with supporting screw, and supporting screw all rotates with the connecting block of one side to be connected, the one end that supporting screw runs through to the connecting block outside all thread bush is equipped with the third clamp splice.

Further, connection structure is including connecting rod, dwang and adapter sleeve pole, bounding wall one side equidistance is fixed with a plurality of connecting rods, and the connecting rod bottom all is fixed with the dwang, bounding wall opposite side equidistance is fixed with the adapter sleeve pole, and connects the bounding wall rear end of loop bar upper run and all seted up the standing groove, the inside central point of standing groove puts the department and all has all ancient clamping screw, and all rotates the cover on the clamping screw and be equipped with the rotor plate, every the inside all thread bush that all is equipped with of clamping screw on rotor plate top is equipped with the fourth clamp splice.

Further, each fixing plate is transversely arranged in an L shape, and the diameter height of each first clamping block is larger than the height of each adjusting groove.

Furthermore, the moving plate is internally provided with sliding grooves matched with the moving cylinders, the side wall of the fixing plate on the outer side of each sliding groove is provided with a groove matched with the connecting screw rod, and the height of each moving cylinder is larger than that of each groove.

Furthermore, the thickness from the rear end of the adjusting groove to the rear end of the enclosing plate is larger than the sum of the thicknesses of the solar cell panel and the limiting plate, and each connecting screw rod is transversely arranged in a T shape.

Further, the height from the auxiliary supporting plate to the bottom end of the bottom plate is larger than the height of the rotating supporting plate, the thickness of the auxiliary supporting plate is larger than the width of the movable groove, and the thickness of the auxiliary supporting plate is smaller than the thickness of the limiting plate.

Further, the movable screw and the supporting screw are both arranged in a transverse T shape, and the width of each second clamping block is larger than that of the movable groove.

Further, every connect the loop bar inside all offer with dwang complex rotation hole, the height that the rotating plate all equals the connecting rod between to the loop bar all.

Furthermore, the rear end of each placing groove is open, and the height of each placing groove is larger than the sum of the heights of the rotating plate and the fourth clamping block.

Through the above-mentioned embodiment of this application, adopted adjustable connection structure, through the adjustable design between solar cell panel and the fixed plate for solar cell panel can carry out the angle modulation according to the position when normal use, when the bounding wall transport, can accomodate solar cell panel to the bounding wall side, conveniently moves the transportation, has solved the inconvenient problem of accomodating is adjusted to the solar cell on the current multi-functional protector, has improved the convenience when protector uses.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a side view of a deployed configuration according to one embodiment of the present application;

FIG. 3 is a schematic sectional front view of a portion of an embodiment of the present application;

FIG. 4 is a schematic side cross-sectional view of a portion of one embodiment of the present application;

FIG. 5 is a schematic sectional front view of a portion of a joint according to an embodiment of the present disclosure.

In the figure: 1. enclosing plates; 2. a base plate; 3. a solar panel; 4. a fixing plate; 5. moving the plate; 6. moving the cylinder; 7. connecting a screw rod; 8. an adjustment groove; 9. a first clamping block; 10. auxiliary supporting plates; 11. a limiting plate; 12. moving the screw; 13. a movable groove; 14. a second clamp block; 15. rotating the supporting plate; 16. connecting blocks; 17. a support screw; 18. a third clamping block; 19. a connecting rod; 20. rotating the rod; 21. connecting the loop bar; 22. a placement groove; 23. fixing the screw rod; 24. a rotating plate; 25. and a fourth clamping block.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-5, a multifunctional protection device for building safety comprises a coaming 1, a bottom plate 2 and a solar panel 3; the top ends of the enclosing plates 1 at two sides of the solar cell panel 3 are all fixed with fixed plates 4, two ends of the front side of the solar cell panel 3 are all fixed with movable plates 5, the interior of each movable plate 5 is connected with a movable cylinder 6 in a sliding way, one end of each movable cylinder 6 close to the corresponding fixed plate 4 is all fixed with a connecting screw 7, one end of each connecting screw 7 extending to the outer side of the corresponding movable plate 5 penetrates through the outer end of the corresponding fixed plate 4, the interior of each fixed plate 4 is provided with an adjusting groove 8 matched with the corresponding connecting screw 7, the connecting screws 7 at the outer sides of the two fixed plates 4 are all sleeved with first clamping blocks 9 through threaded holes, the front side and the rear side of each enclosing plate 1 are all provided with auxiliary structures, the side of each enclosing plate 1 is provided with a connecting structure, the orientation and the angle can be adjusted according to the actual position through the rotary design of the solar cell panel 3, and can be accommodated in the inner side of the enclosing plate 1 when not in use, so as to better protect the solar cell panel 3, the practicability of the protective device is improved;

the auxiliary structure comprises auxiliary supporting plates 10, the front side and the rear side of each surrounding plate 1 are symmetrically provided with the auxiliary supporting plates 10, the side walls of the surrounding plates 1 on the two sides of each auxiliary supporting plate 10 are all fixed with limiting plates 11, the two sides of the top end of each auxiliary supporting plate 10 are all fixed with movable screws 12, the movable screws 12 are all in sliding connection with movable grooves 13 arranged in the limiting plates 11, one ends of the movable screws 12 extending to the outer sides of the limiting plates 11 are all in threaded sleeve connection with second clamping blocks 14, the front side of the bottom end of each auxiliary supporting plate 10 is all provided with a rotary supporting plate 15, the two sides of the bottom end of each auxiliary supporting plate 10 are all provided with connecting blocks 16, the bottom ends of the connecting blocks 16 are all fixed on the rotary supporting plates 15, one side of the bottom end of each auxiliary supporting plate 10 is all fixed with supporting screws 17, the supporting screws 17 are all in rotary connection with the connecting blocks 16 on one side, one end of the supporting screws 17 penetrating to the outer sides of the connecting blocks 16 is all in threaded sleeve connected with third clamping blocks 18, the coaming 1 is supported in an auxiliary manner through the auxiliary supporting plate 10, and a supporting force is provided for the coaming 1, so that the coaming 1 is more stable and firm after being installed, the stability of the coaming 1 in use is improved, and the coaming can be moved to the side edge of the coaming 1 to be convenient to move; the connecting structure comprises connecting rods 19, rotating rods 20 and connecting loop bars 21, a plurality of connecting rods 19 are fixed on one side of a surrounding plate 1 at equal intervals, the bottom ends of the connecting rods 19 are fixed with the rotating rods 20, the other side of the surrounding plate 1 is fixed with the connecting loop bars 21 at equal intervals, a placing groove 22 is formed in the rear end of the surrounding plate 1 on which the connecting loop bars 21 are arranged, fixing screws 23 are arranged at the central positions inside the placing groove 22 at regular intervals, rotating plates 24 are rotatably sleeved on the fixing screws 23, a fourth clamping block 25 is sleeved inside the fixing screw 23 at the top end of each rotating plate 24 in a threaded manner, and the surrounding plate 1 is spliced through the splicing type fixing structure of the surrounding plate 1, so that the angle adjustment can be carried out on the surrounding plate 1, the operation is simple and convenient, and the convenience in use of the surrounding plate 1 is improved;

each fixing plate 4 is transversely arranged in an L shape, the diameter height of each first clamping block 9 is larger than the height of each adjusting groove 8, the solar cell panel 3 can be conveniently and completely moved to the rear side of the enclosing plate 1, the first clamping blocks 9 can be enabled to abut against the side edges of the fixing plates 4, and the solar cell panel 3 and the fixing plates 4 can be conveniently fixed; the movable plate 5 is internally provided with chutes matched with the movable cylinders 6, the side walls of the fixed plates 4 at the outer sides of the chutes are provided with slots matched with the connecting screw rods 7, and the heights of the movable cylinders 6 are all larger than those of the slots, so that the movable cylinders 6 can move in the movable plate 5 conveniently, and the movable cylinders 6 are prevented from moving out of the movable plate 5; the thickness from the rear end of the adjusting groove 8 to the rear end of the coaming 1 is larger than the sum of the thicknesses of the solar cell panel 3 and the limiting plate 11, and each connecting screw 7 is transversely arranged in a T shape, so that the solar cell panel 3 can be rotated to be attached to the limiting plate 11 on the rear side of the coaming 1, and the solar cell panel 3 can be conveniently stored; the height from the auxiliary supporting plate 10 to the bottom end of the bottom plate 2 is greater than the height of the rotating supporting plate 15, the thickness of the auxiliary supporting plate 10 is greater than the width of the movable groove 13, the thickness of the auxiliary supporting plate 10 is smaller than the thickness of the limiting plates 11, the rotating supporting plate 15 can be stored to the side edge of the coaming 1, and the auxiliary supporting plate 10 can conveniently move between the two limiting plates 11; the movable screw 12 and the support screw 17 are both arranged in a transverse T shape, the width of each second clamping block 14 is larger than that of the movable groove 13, the second clamping blocks 14 and the third clamping blocks 18 are prevented from being separated from the movable screw 12 and the support screw 17, the second clamping blocks 14 can be abutted against the side edge of the limiting plate 11, and the auxiliary supporting plate 10 and the limiting plate 11 can be conveniently fixed; a rotating hole matched with the rotating rod 20 is formed in each connecting loop bar 21, the height from the rotating plate 24 to the connecting loop bar 21 is equal to the height of the connecting rod 19, the rotating rod 20 can be conveniently inserted into the connecting loop bar 21, and the rotating plate 24 is used for limiting, so that the rotating rod 20 can only rotate in the connecting loop bar 21, and the rotating rod 20 is prevented from being separated from the connecting loop bar 21; every standing groove 22 rear end all sets up to open, and every standing groove 22 highly all is greater than the sum of the height of rotor plate 24 and fourth clamp splice 25, guarantees that fourth clamp splice 25 can rotate to separate with rotor plate 24 to conveniently rotate rotor plate 24, make rotor plate 24 and the back of connecting loop bar 21 dislocation, make things convenient for dwang 20 to insert inside connecting loop bar 21, thereby make things convenient for the equipment between bounding wall 1.

When the solar cell panel is used, when the angle of the solar cell panel 3 needs to be adjusted, the first clamping block 9 is rotated to relieve the clamping fixation of the first clamping block 9 on the fixed plate 4, the solar cell panel 3 can be rotated to drive the movable plate 5 to rotate on the movable cylinder 6, after the rotation is finished, the first clamping block 9 is rotated again to enable the first clamping block 9 to clamp and fix the fixed plate 4 again, the fixed plate 4 can be fixed, when the solar cell panel 3 is not used, the first clamping block 9 is rotated again to push the solar cell panel 3 to drive the front end of the movable plate 5 to move onto the movable cylinder 6, then the connecting screw 7 is pushed to enable the connecting screw 7 to move to the rear end of the adjusting groove 8, at the moment, the solar cell panel 3 is positioned behind the enclosure plate 1, under the matching of the movable plate 5 and the movable cylinder 6, the movable plate is rotated to be vertically placed to be attached to the rear side of the enclosure plate 1, then the first clamping block 9 is twisted again to clamp and fix the fixed plate 4, when the coaming 1 is assembled, the coaming 1 is lifted, the connecting rod 19 drives the rotating rod 20 to be inserted into the connecting sleeve rod 21, then the rotating plate 24 is rotated, the rotating plate 24 is rotated to the top end of the connecting rod 19, the position is limited by the rotating plate 24, the connecting rod 19 is rotatably connected with the connecting sleeve rod 21, the rotating rod is screwed to the fourth clamping block 25, the fourth clamping block 25 is pressed and fixed on the rotating plate 24, then the coaming 1 is rotated according to the angle during enclosure, after the coaming 1 is rotated to the required angle, the fixing nail is nailed into the ground through the bottom plate 2, after the coaming 1 is fixed, the second clamping blocks 14 at two sides are screwed, so that the clamping and fixing of the second clamping blocks 14 on the limiting plate 11 are released, then the auxiliary supporting plate 10 is rotated, the third clamping block 18 is screwed, the clamping and fixing of the third clamping block 18 on the connecting block 16 is released, the rotating supporting plate 15 is rotated to be horizontally placed, the auxiliary supporting plate 10 is pulled downwards, drive and rotate fagging 15 butt on ground, can carry out auxiliary stay to bounding wall 1 through rotating fagging 15 and supplementary fagging 10 cooperation, then twist respectively and move second clamp splice 14 and third clamp splice 18 press from both sides tight fixed can to limiting plate 11 and connecting block 16, use the completion back, twist again and move second clamp splice 14 and third clamp splice 18, will assist fagging 10 and rotate fagging 15 and accomodate to bounding wall 1 side, and press from both sides tight fixed can, the electrical components that appear in this application all external intercommunication power and control switch when using.

The application has the advantages that:

1. the solar panel protection device is simple in operation, the angle can be adjusted according to the position of the coaming 1 during installation through the adjustable design of the solar panel 3, the solar panel 3 can be stored inside the coaming 1 when the solar panel is not used, the solar panel 3 can be better protected, and the coaming 1 can be conveniently moved due to the storage design;

2. the structure is reasonable, the auxiliary supporting plates 10 are matched with the rotating supporting plates 15 to support the two sides of the coaming 1 in an auxiliary mode, so that the coaming 1 can be placed on uneven building ground at a high temperature, the stability of the protective device in use is greatly improved, the auxiliary supporting plates 10 and the rotating supporting plates 15 can be still stored to the side edges of the coaming 1 to be stored, and the coaming 1 is prevented from being influenced to be carried;

3. this application is rational in infrastructure, connects through the rotary type between bounding wall 1, and the angle when establishing is conveniently adjusted according to enclosing, has improved protector's suitability, and but removable fraction design between the bounding wall 1 makes things convenient for the independent split formula transport of bounding wall 1 and accomodates, has improved protector's suitability.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a multi-functional protector is used to building safety which characterized in that: comprises a coaming (1), a bottom plate (2) and a solar panel (3); the top ends of the coamings (1) at the two sides of the solar cell panel (3) are both fixed with a fixed plate (4), the two ends of the front side of the solar cell panel (3) are both fixed with a movable plate (5), and the moving plate (5) is internally connected with a moving cylinder (6) in a sliding way, one end of the moving cylinder (6) close to the fixed plate (4) is fixed with a connecting screw rod (7), one end of each connecting screw rod (7) extending to the outer side of the corresponding movable plate (5) penetrates through the outer ends of the corresponding fixed plates (4), adjusting grooves (8) matched with the corresponding connecting screw rods (7) are formed in the two fixed plates (4), the connecting screw rods (7) on the outer sides of the two fixed plates (4) are sleeved with first clamping blocks (9) through threaded holes in a threaded manner, the side all is provided with auxiliary structure around bounding wall (1), bounding wall (1) side is provided with connection structure.

2. The multifunctional protector for building safety as claimed in claim 1, wherein: the auxiliary structure comprises auxiliary supporting plates (10), wherein the front side and the rear side of each surrounding plate (1) are symmetrically provided with the auxiliary supporting plates (10), the side walls of the surrounding plates (1) at the two sides of each auxiliary supporting plate (10) are respectively fixed with a limiting plate (11), the two sides of the top end of each auxiliary supporting plate (10) are respectively fixed with a movable screw (12), the movable screws (12) are respectively in sliding connection with movable grooves (13) formed in the limiting plates (11), one ends of the movable screws (12) extending to the outer sides of the limiting plates (11) are respectively sleeved with a second clamping block (14) in a threaded manner, the front side of the bottom end of each auxiliary supporting plate (10) is respectively provided with a rotating supporting plate (15), the two sides of the bottom end of each auxiliary supporting plate (10) are respectively provided with a connecting block (16), the bottom ends of the connecting blocks (16) are respectively fixed on the rotating supporting plates (15), and one side of the bottom end of each auxiliary supporting plate (10) is respectively fixed with a supporting screw (17), and the supporting screw rods (17) are rotationally connected with the connecting blocks (16) on one side, and the supporting screw rods (17) penetrate through to the outer ends of the connecting blocks (16) and are all sleeved with third clamping blocks (18) in a threaded manner.

3. The multifunctional protector for building safety as claimed in claim 1, wherein: connection structure is including connecting rod (19), dwang (20) and adapter sleeve pole (21), bounding wall (1) one side equidistance is fixed with a plurality of connecting rods (19), and connecting rod (19) bottom all is fixed with dwang (20), bounding wall (1) opposite side equidistance is fixed with adapter sleeve pole (21), and adapter sleeve pole (21) goes up bounding wall (1) rear end of dividing and has all seted up standing groove (22), standing groove (22) inside central point puts the department and all has all ancient fixed screw (23), and all rotates on fixed screw (23) and overlap and be equipped with rotor plate (24), every the inside all thread bush of fixed screw (23) on rotor plate (24) top is equipped with fourth clamp splice (25).

4. The multifunctional protector for building safety as claimed in claim 1, wherein: each fixing plate (4) is transversely arranged in an L shape, and the diameter height of each first clamping block (9) is larger than the height of each adjusting groove (8).

5. The multifunctional protector for building safety as claimed in claim 1, wherein: the movable plate (5) is internally provided with sliding grooves matched with the movable cylinders (6), the side wall of the fixed plate (4) on the outer side of each sliding groove is provided with a groove matched with the connecting screw rod (7), and the height of each movable cylinder (6) is larger than that of each groove.

6. The multifunctional protector for building safety as claimed in claim 1, wherein: the thickness between the rear end of the adjusting groove (8) and the rear end of the coaming plate (1) is larger than the sum of the thicknesses of the solar cell panel (3) and the limiting plate (11), and each connecting screw rod (7) is arranged in a transverse T shape.

7. The multifunctional protector for building safety as claimed in claim 2, wherein: the height of supplementary fagging (10) between bottom plate (2) bottom all is greater than the height of rotating fagging (15), the thickness of supplementary fagging (10) all is greater than the width of activity groove (13), the thickness of supplementary fagging (10) all is less than the thickness of limiting plate (11).

8. The multifunctional protector for building safety as claimed in claim 2, wherein: the movable screw rod (12) and the supporting screw rod (17) are arranged in a transverse T shape, and the width of each second clamping block (14) is larger than that of the movable groove (13).

9. A multi-functional safety shield as recited in claim 3, further comprising: every connecting sleeve pole (21) inside all seted up with dwang (20) complex rotation hole, the height that the rotating plate (24) was gone between connecting sleeve pole (21) all equals the height of connecting rod (19).

10. A multi-functional safety shield as recited in claim 3, further comprising: the rear end of each placing groove (22) is open, and the height of each placing groove (22) is larger than the sum of the heights of the rotating plate (24) and the fourth clamping block (25).

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