CN212585361U - Novel feeding bottle rack - Google Patents

Abstract

The utility model belongs to the technical field of infant articles, in particular to a novel milk bottle rack, which comprises a base and a drying rack, wherein the drying rack is used for placing and draining milk bottles; the base is detachably connected with the plurality of drying frames, the drying frames are detachably connected, the number of the milk bottles which can be placed and drained on the milk bottle frame is adjusted through the number of the connected drying frames, so that a user can freely select the number of the drying frames according to the number of the milk bottles to be processed, the utilization rate of parts of the milk bottle frame is improved, and meanwhile, a certain space is saved; when the feeding bottle rack is not used, a user can simply separate the base from the airing rack, so that the base and the airing rack are separately arranged, and the feeding bottle rack is more convenient for the user to store; this design also can adjust the height of milk bottle frame when the regulation dries a frame quantity to can let the user select more suitable height to use milk bottle frame.

Description

Novel feeding bottle rack

Technical Field

The utility model relates to the technical field of infant articles, in particular to a novel feeding bottle rack.

Background

Feeding bottles are used as daily necessities for infants, and parents of infants pay great attention to all aspects of the feeding bottles, particularly the sanitary condition, which is directly related to the health of the infants. After the milk bottle is cleaned, bacteria are easy to breed when the milk bottle is placed at will, and the health of a baby is affected, so a series of milk bottle racks are gradually pushed out from the market and used for placing and draining the milk bottle. Common milk bottle racks include a water receiving box and an airing rack.

The Chinese patent application number is 2018201898928, the publication date is 2018, 2 and 5 days, the invention provides a novel milk bottle airing frame, the application discloses a novel milk bottle airing frame, the novel milk bottle airing frame comprises a base and airing rods, the airing rods are detachably and annularly distributed on an installation table, the airing rods are divided into a straw airing rod and a milk bottle airing rod, a nipple airing frame is erected above the straw airing rod, branches are formed on the straw airing rod by uniformly distributing a plurality of nipple placing grooves on the nipple airing frame, the milk bottle airing rod comprises a milk bottle airing rod main body and a limiting branch rod, and the limiting branch rod is arranged at the lower end part of the milk bottle airing rod main body.

The novel milk bottle airing rack disclosed in the patent document has the advantages that the structure is simple, milk bottles are not easily polluted, direct drainage is achieved, the number of the airing racks which can be inserted into the milk bottle rack is fixed, and when the number of the milk bottles to be placed is not enough, the number of the milk bottle racks can be increased or redundant milk bottles can be placed on a table top; when the number of the milk bottles is small, other airing rods on the milk bottle rack are idle and cannot be effectively utilized, and the unused parts occupy larger space.

Disclosure of Invention

The utility model aims at providing a novel milk bottle rack, which comprises a base and an airing rack, wherein the airing rack is used for placing and draining milk bottles; can dismantle on the base and be connected with a plurality of and dry the frame, and dry and can dismantle the connection between the frame, thereby stack on the vertical direction and dry the mode that the frame increased the feeding bottle and dry quantity through providing, solve the problem that the frame quantity of drying that can insert on the feeding bottle frame is not adjustable.

The purpose of the utility model is realized like this:

a novel feeding bottle rack comprises

A base for supporting the drying rack;

the drying rack is used for placing and draining the milk bottle;

can dismantle on the base and be connected with a plurality of and dry the frame, dry and to dismantle the connection between the frame.

Preferably, dry the frame including the body frame of bottle, the body frame is used for placing and driping the milk bottle frame body, and mutual joint in vertical direction between the body frame.

Preferably, an upper connecting groove I and a lower connecting groove I are respectively formed at the upper end and the lower end of the bottle body frame; the bottle body frames are connected up and down, and the bottle body frames are matched with the lower connecting groove I of the upper bottle body frame through the upper connecting groove I of the lower bottle body frame to realize detachable connection.

Preferably, the upper end and the lower end of the bottle body frame are formed with a limiting block and a limiting strip which are centrosymmetric, and the limiting block and the limiting strip are used for limiting the deviation and the rotation of the bottle body.

Preferably, the airing rack comprises a nipple rack, the nipple rack is used for placing and draining nipples, and the lower end of the nipple rack is detachably connected with the bottle body rack.

Preferably, a lower connecting groove II is formed at the lower end of the nipple frame, and the nipple frame is detachably connected with the bottle body frame through the matching of the lower connecting groove II of the nipple frame and the upper connecting groove I of the bottle body frame.

Preferably, a placing groove for placing and draining the nipple is formed in the upper end of the nipple frame, the cross section of the upper end of the nipple frame is arc-shaped, the periphery of the nipple frame is upwards bent to form a curved surface, and the placing groove is formed in the curved surface.

Preferably, the base is provided with an installation part, an upper connecting groove II matched with the lower connecting groove I or the lower connecting groove II is formed in the installation part, and the installation part is used for connecting the nipple frame or the bottle body frame.

Preferably, the base is provided with a draining rack for placing and draining parts of the feeding bottle, the draining rack is provided with a plurality of through holes for draining, and the plane of the draining rack is inclined downwards from the center of the base towards the outer side.

Preferably, base middle part shaping has the bellied mount table that makes progress, and the shaping has the mounting groove on the mount table, installation department lower extreme shaping has the installation piece with mounting groove matched with, and the installation department sets up on the mount table through the cooperation of installation piece with the mounting groove.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses a plurality of airing racks can be dismantled and connected on the base, and can dismantle the connection between the airing racks, adjust the quantity that can place and drip the feeding bottle on the feeding bottle frame through the quantity of the connected airing rack, thereby can let the user freely select the airing rack quantity according to the feeding bottle quantity that needs to handle, and then improve the utilization ratio of feeding bottle frame spare part, save certain space simultaneously; when the feeding bottle rack is not used, a user can simply separate the base from the airing rack, so that the base and the airing rack are separately arranged, and the feeding bottle rack is more convenient for the user to store; this design also can adjust the height of milk bottle frame when the regulation dries a frame quantity to can let the user select more suitable height to use milk bottle frame.

2. The drying rack of the utility model is divided into a bottle body rack and a nipple rack, and the lower end of the nipple rack is detachably connected with the feeding bottle rack; the bottle body frame is used for placing and draining the bottle body of the feeding bottle frame, and the nipple frame is used for placing and draining a nipple; through the design, the bottle body and the nipple of the milk bottle can be provided with related components which can be placed and drained, and the utilization rate of parts of the milk bottle rack is improved; meanwhile, when the nipple does not need to be hung for draining, the nipple frame can be detached, so that the space and the weight are reduced.

3. The upper and lower ends of the bottle body frame of the utility model are respectively provided with an upper connecting groove I and a lower connecting groove I; the bottle body frames are connected up and down, and the bottle body frames are detachably connected through the matching of an upper connecting groove I of the lower bottle body frame and a lower connecting groove I of the upper bottle body frame; the upper and lower connecting grooves between different bottle body frames are inserted in a cross way, so that the frame bodies of the bottle body frames are inserted into the connecting grooves, and the bottle body frames are clamped; and the disassembly can be completed only by drawing out the frame body of the bottle body frame from the connecting groove, so that the simple assembly and disassembly between the bottle body frames are realized.

4. The utility model has the advantages that the upper end of the nipple rack is formed with a placing groove for placing and draining the nipple, and the nipple can be clamped by the placing groove, so that the nipple can be stably placed on the nipple rack; a lower connecting groove II is formed at the lower end of the nipple rack, and the lower connecting groove II of the nipple rack is in cross insertion with the upper connecting groove I of the bottle body rack, so that the bottle body rack body and the lower end rack body of the nipple rack are respectively inserted into the lower connecting groove II and the upper connecting groove I, and the bottle body rack and the milk bottle rack are mutually clamped and connected to complete connection; the milk bottle rack can be separated only by drawing out the milk bottle rack from the upper connecting groove I; thereby the bottle body frame and the milk bottle frame can be simply disassembled and connected.

5. The utility model discloses a cross sectional shape of nipple frame upper end is convex, and the crooked curved surface that forms in nipple frame week side, the standing groove shaping is on the curved surface, places the nipple when the standing groove, because the nipple is in the curved surface so the nipple is placed and is certain inclination when the standing groove, and residual moisture can break away from the nipple because gravity flows downwards, more is favorable to the driping of nipple.

6. The upper end part and the lower end part of the bottle body frame and the lower end part of the nipple frame are formed with the centrosymmetric limiting blocks which are used for limiting the deviation and the rotation of the bottle body frame or the nipple frame, so that the bottle body frame or the nipple frame can be connected with each other more firmly and more stably, and a feeding bottle is not easy to shake when being hung on the feeding bottle frame; when the feeding bottle rack is impacted by external force, the bottle body rack or the nipple rack cannot easily shift and rotate, so that the use of the feeding bottle rack is influenced.

7. The base of the utility model is provided with a draining rack for placing and draining the parts of the feeding bottle; the parts which can not be hung on the milk bottle or other parts which can be placed on the plane of the draining rack can be directly placed on the draining rack for draining; the draining rack is provided with a plurality of through holes for draining water, the plane of the draining rack is inclined downwards from the center of the base to the outer side, the design can enable accumulated water remaining on the component to flow downwards to the through holes, then the accumulated water enters the water collecting area of the base and is finally treated with the accumulated water flowing down on the drying rack in a unified way; and then through above-mentioned design make the relative spare part that the feeding bottle frame can more comprehensive place and driping the feeding bottle, also enable ponding simultaneously and can obtain more effective processing.

8. The base of the utility model is provided with an installation part, an upper connecting groove II matched with a lower connecting groove I or a lower connecting groove II is formed on the installation part, and the installation part is used for connecting a nipple rack or a bottle body rack, so that the drying rack can be simply disassembled and connected on the base; when in use, the airing frame is inserted on the mounting part to complete the connection; thereby being more convenient for the user to use and store.

9. The utility model discloses a base middle part shaping has the bellied mount table that makes progress, and the shaping has the mounting groove on the mount table, and installation department lower extreme shaping has the installation piece with mounting groove matched with, and the installation department sets up on the mount table through the cooperation of installation piece with the mounting groove. The installation part can also be simply disassembled and assembled, so that the space is saved; simultaneously because the mount table is upwards bellied, and week side is the catchment area of base, so the installation department can not receive the ponding influence in catchment area easily to influence the use of installation department, perhaps ponding in the catchment area flows out the base from the mounting groove, wets ground or desktop.

10. The handle grooves are formed on the two sides of the base of the utility model, so that a user can move the feeding bottle rack more conveniently; the inboard handle trench position shaping of base has the lug, and lug butt catches the waterlogging caused by excessive rainfall frame, and when the waterlogging caused by excessive rainfall frame emergence skew, the lug also can play corresponding decurrent limiting displacement, can not squint too greatly when making the waterlogging caused by excessive rainfall frame place to make the more stable placing of waterlogging caused by excessive rainfall frame ability on the base.

Drawings

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

Fig. 2 is a schematic view of the nipple rack of the present invention.

Fig. 3 is a schematic view of the bottle body frame of the present invention.

Fig. 4 is a schematic view of the connection between the base, the draining layer and the mounting portion of the present invention.

Fig. 5 is a schematic view of the overall structure of the base of the present invention.

Fig. 6 is a schematic view of the overall structure of the installation part of the present invention.

Fig. 7 is an enlarged view of the position a of the present invention.

Reference numerals: 1-a base; 2-drying the rack; 3-bottle body frame; 4-nipple rack; 5, connecting a first upper groove; 6-lower connecting groove I; 7-placing the groove; 8-lower connecting groove II; 9-a restriction block; 10-a draining rack; 11-a mounting portion; 12-upper connecting groove two; 13-mounting a table; 14-mounting grooves; 15-mounting a block; 16-handle slot; 17-an abutment block; 18-hanging rod; 19-an abutment tab; 20-fixing holes; 21-fixing block: 22-restriction bar.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

Example 1:

as shown in figure 1, the novel milk bottle rack comprises a base 1 and a drying rack 2, wherein the drying rack 2 is used for placing and draining milk bottles. The drying rack 2 is divided into a bottle body rack 3 and a nipple rack 4, the bottle body rack 3 is used for placing and draining the bottle body of the milk bottle rack, and the nipple rack 4 is used for placing and draining the nipple.

As shown in fig. 3, an upper connecting groove one 5 and a lower connecting groove one 6 are respectively formed at the upper end and the lower end of the bottle body frame 3; the bottle body frames 3 are connected up and down, upper and lower connecting grooves between different bottle body frames 3 are in cross insertion connection, so that the frame bodies of the bottle body frames 3 are inserted into the connecting grooves, and the bottle body frames 3 are clamped. And only need take out the support body of body frame 3 from the spread groove and can accomplish the dismantlement, and then cooperate through last spread groove one 5 of body frame 3 below and the lower spread groove one 6 of body frame 3 above and realize the dismantlement connection between the body frame 3, make the installation between the body frame 3 with dismantle simple and convenient more. The two sides of the bottle body frame 3 are formed with the strip-shaped hanging rods 18 which are bent upwards, and the hanging rods 18 penetrate through the bottle openings of the feeding bottles to support the feeding bottles, so that the bottle bodies of the feeding bottles are hung on the bottle body frame 3 in a downward inclined mode, accumulated water of the feeding bottles flows downwards, and the feeding bottles can be dried more quickly.

As shown in fig. 2, the whole shape of the nipple holder 4 is petal-shaped, a placing groove 7 for placing and draining the nipple is formed at the upper end of the nipple holder, the two ends of the placing groove 7 are large, the middle of the placing groove is small, so that the nipple can be clamped by the placing groove 7, and the nipple can be stably placed on the nipple holder 4. The cross-sectional shape of the upper end of the nipple frame 4 is arc-shaped, the peripheral side of the nipple frame 4 is bent upwards to form a curved surface, the placing groove 7 is formed on the curved surface, when the nipple is placed on the placing groove 7, the nipple is placed on the placing groove 7 at a certain inclination angle because the nipple is positioned on the curved surface, and residual moisture can flow downwards to separate from the nipple due to gravity, so that the nipple is more favorable for draining.

The lower end of the nipple frame 4 is detachably connected with the bottle body frame 3. A lower connecting groove II 8 is formed at the lower end of the nipple rack 4, and the lower connecting groove II 8 of the nipple rack 4 is in cross insertion with an upper connecting groove I5 of the bottle body rack 3, so that the rack body of the bottle body rack 3 and the rack body at the lower end of the nipple rack 4 are respectively inserted into the lower connecting groove II 8 and the upper connecting groove I5, and the bottle body rack 3 and the milk bottle rack are mutually clamped and connected to complete connection; the milk bottle rack can be separated only by pulling out the milk bottle rack from the upper connecting groove I5; thereby the bottle body frame 3 and the milk bottle frame can be simply disassembled and connected.

With reference to fig. 4 and 6, the base 1 is provided with an installation part 11, the installation part 11 is formed with a fixing block 21 for limiting and fixing the drying rack 2, the installation part 11 is used for connecting the nipple rack 4 or the bottle body rack 3, and the fixing block 21 limits the deviation and rotation of the drying rack 2, so that the drying rack 2 is fixed on the installation part 11. Still the shaping has on the installation department 11 and goes up spread groove two 12 with spread groove one 6 or spread groove two 8 matched with down to realize base 1 and dry the frame 2 can dismantle be connected, make dry frame 2 can simply dismantle and be connected on base 1. When the drying rack is not needed to be used, the drying rack 2 can be separated by being pulled out from the mounting part 11, and the drying rack 2 and the base 1 are separately arranged, so that the space is saved; when in use, the drying rack 2 is only required to be inserted on the mounting part 11, and the connection can be completed; thereby being more convenient for the user to use and store.

Can dismantle through above-mentioned base 1 on be connected with a plurality of and dry frame 2, and dry the design that can dismantle the connection between the frame 2, let the user can be through the quantity that can place and drip dry feeding bottle on the quantity regulation feeding bottle frame of the frame 2 that dries of connection, the free choice dries 2 quantity of frame, and then improves the utilization ratio of feeding bottle frame spare part, saves certain space simultaneously. The bottle body frame 3 and the nipple frame 4 can be directly arranged on the base 1, and the bottle body frame 3 can be vertically overlapped on the base 1 by one layer, two layers, three layers and four layers. When the feeding bottle frame does not use, the user also can simply separate base 1 and dry frame 2 to base 1 with dry frame 2 separately and place, more person of facilitating the use's accomodation. The design can adjust the height of the milk bottle rack while adjusting the number of the drying racks 2, so that a user can select a more proper height to use the milk bottle rack.

Referring to fig. 2, 3 and 7, the upper and lower ends of the body frame 3 and the lower end of the nipple frame 4 are formed with a restriction piece 9 having a central symmetry with respect to the connection groove near the left side of the connection groove, the restriction piece 9 is used to restrict the displacement and rotation of the body frame 3 or the nipple frame 4, and a restriction strip 22 having a central symmetry with respect to the connection groove is formed near the right side of the connection groove. The limiting blocks 9 and the limiting strips 22 enable the bottle body frame 3 or the nipple frame 4 to be connected with each other more firmly and stably, and the bottle body frame 3 or the nipple frame 4 cannot sway left and right when being connected, so that a feeding bottle is not prone to sway when being hung on the feeding bottle frame. When the milk bottle rack is impacted by external force, the bottle body rack 3 or the nipple rack 4 can be supported and fixed mutually through the limiting blocks 9 and the limiting strips 22, and the shifting and the rotation are not easy to occur, so that the use of the milk bottle rack is influenced.

As shown in fig. 4, be provided with draining rack 10 on base 1, the spare part that can not hang when the feeding bottle, perhaps other can place and can place on draining rack 10 planar part and drain on draining rack 10, the through-hole that a plurality of is used for the drainage has been seted up on draining rack 10, draining rack 10's upper surface is from base 1 center towards outside direction downward sloping, remaining ponding flows downwards because of the inclined plane on the part, the flow direction through-hole, then get into the catchment region of base 1 from the through-hole, converge with the ponding that flows down from drying rack 2 and concentrate on the catchment region, end user can be with the unified ponding of catchment region and handle.

The draining rack 10 is circular, the two ends of the draining rack are provided with abutting pieces 19, and the abutting pieces 19 are used for abutting against the peripheral side of the base 1, so that the draining rack 10 can abut against the base 1. When handling ponding, only need the hand hold to lean on piece 19 to lift up can raise draining rack 10, then can directly pour ponding, easy operation is swift. Meanwhile, the draining rack 10 only abuts against the base 1, so that the draining rack 10 is convenient to detach and mount.

The mounting part 11 penetrates through the draining rack 10, the mounting part 11 can be more stable through the design, and the shaking of the mounting part 11 and the drying rack 2 mounted on the mounting part is reduced.

As shown in fig. 5, an installation platform 13 protruding upwards is formed in the middle of the base 1, an installation groove 14 is formed on the installation platform 13, two cross-shaped fixing holes 20 are formed in the installation groove 14, an installation block 15 matched with the installation groove 14 is formed at the lower end of the installation part 11, and the installation block 15 is a cross-shaped projection. The mounting portion 11 is fixed to the mounting table 13 by the mounting block 15 through a fixing hole 20 in the mounting groove 14. Thus, the mounting part 11 can be simply disassembled and assembled, thereby saving more space; meanwhile, because the mounting platform 13 is convex upwards and the periphery is the water collecting area of the base 1, the mounting part 11 cannot be easily affected by the accumulated water in the water collecting area, so that the use of the mounting part 11 is affected, or the accumulated water in the water collecting area flows out of the base 1 from the mounting groove 14 to wet the ground or the table top.

Handle grooves 16 are formed on two sides of the base 1, so that a user can move the feeding bottle rack more conveniently. The inboard handle groove 16 position shaping of base 1 has butt piece 17, and the draining frame 10 is lived to butt piece 17 butt, and when draining frame 10 took place the skew, butt piece 17 also can play corresponding spacing effect down, can not squint too greatly when making draining frame 10 place to make draining frame 10 can more stable place on base 1.

The through holes and the projections in the mounting groove 14 and the mounting portion 11 in the present embodiment can be replaced with each other, and the through holes can also be replaced with grooves.

Example 2:

this embodiment is unanimous basically with embodiment 1, and its difference with embodiment 1 lies in installation department 11 integrated into one piece and sets up on mounting groove 14 to make installation department 11 more stable, and then make the dry frame 2 of connecting 1 on installation department 11 more stable, difficult rocking.

Example 3:

this embodiment is basically the same with embodiment 1, and its difference with embodiment 1 lies in that the upper and lower both ends shaping of airing frame 2 has the cylindricality that siphonozooid (tourus) and siphonozooid internal diameter are equal, dries and cup joints each other through siphonozooid and cylindricality between the frame 2 and installs, is provided with in siphonozooid and the cylindricality and is used for restriction and fixed lug or recess, makes both connect more firmly, restricts relative rotation between them. Meanwhile, the cylinder also saves a certain space.

Example 4:

the present embodiment is substantially the same as embodiment 1, and the difference from embodiment 1 is that the upper and lower ends of the drying rack 2 are respectively formed with an internal thread and an external thread, and the internal thread and the external thread are used for threaded connection between the drying racks 2. The side surface of the drying rack 2 is provided with a plurality of internal thread holes for connecting other drying racks 2 to the side surface of the drying rack 2, so that the drying racks 2 can be stacked and detachably connected in the vertical direction and can be expanded in the transverse direction, the whole shape of the milk bottle rack is tree-shaped, the milk bottle rack can be expanded in more directions for use, and more milk bottles can be placed and drained simultaneously.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A novel baby bottle holder comprising:

a base (1) for supporting the drying rack (2);

the drying rack (2), the drying rack (2) is used for placing and draining the milk bottle;

the method is characterized in that:

can dismantle on base (1) and be connected with a plurality of and dry frame (2), dry and to dismantle the connection between frame (2).

2. The novel baby bottle holder according to claim 1, wherein: the drying rack (2) comprises a bottle body rack (3), the bottle body rack (3) is used for placing and draining the bottle body of the milk bottle rack, and the bottle body racks (3) are mutually clamped in the vertical direction.

3. A novel baby bottle holder according to claim 2, characterized in that: an upper connecting groove I (5) and a lower connecting groove I (6) are respectively formed at the upper end and the lower end of the bottle body frame (3); the bottle body frames (3) are connected up and down, and the upper connecting grooves (5) of the lower bottle body frames (3) are matched with the lower connecting grooves (6) of the upper bottle body frames (3) to realize detachable connection.

4. A novel baby bottle holder according to claim 2, characterized in that: the upper end and the lower end of the bottle body frame (3) are formed with a limiting block (9) and a limiting strip (22) which are centrosymmetric, and the limiting block (9) and the limiting strip (22) are used for limiting the deviation and the rotation of the bottle body frame (3).

5. The novel baby bottle holder according to claim 1, wherein: the drying rack (2) comprises a nipple rack (4), the nipple rack (4) is used for placing and draining nipples, and the lower end of the nipple rack (4) is detachably connected with the bottle body rack (3).

6. The novel baby bottle holder according to claim 5, wherein: the lower end of the nipple frame (4) is provided with a second lower connecting groove (8), and the second lower connecting groove (8) of the nipple frame (4) is matched with the first upper connecting groove (5) of the bottle body frame (3) to realize detachable connection of the nipple frame (4) and the bottle body frame (3).

7. The novel baby bottle holder according to claim 5, wherein: a placing groove (7) for placing and draining nipples is formed in the upper end of the nipple frame (4), the cross section of the upper end portion of the nipple frame (4) is arc-shaped, the peripheral side of the nipple frame (4) is bent upwards to form a curved surface, and the placing groove (7) is formed in the curved surface.

8. A novel baby bottle holder according to claim 3 or 4, characterized in that: the base (1) is provided with an installation part (11), an upper connecting groove II (12) matched with a lower connecting groove I (6) or a lower connecting groove II (8) is formed in the installation part (11), and the installation part (11) is used for connecting the nipple frame (4) or the bottle body frame (3).

9. A novel baby bottle holder according to any one of claims 1 to 7, characterized in that: the milk bottle draining device is characterized in that a draining rack (10) used for placing and draining parts of a milk bottle is arranged on the base (1), a plurality of through holes used for draining are formed in the draining rack (10), and the plane of the draining rack (10) inclines downwards towards the outer side direction from the center of the base (1).

10. The novel baby bottle holder according to claim 8, wherein: base (1) middle part shaping has bellied mount table (13) that makes progress, and the shaping has mounting groove (14) on mount table (13), installation department (11) lower extreme shaping has installation piece (15) with mounting groove (14) matched with, and installation department (11) set up on mount table (13) through the cooperation of installation piece (15) with mounting groove (14).

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