CN210520914U

CN210520914U - Convenient collodion mop

Info

Publication number: CN210520914U
Application number: CN201920624507.2U
Authority: CN
Inventors: 陈琳玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-01
Filing date: 2019-05-01
Publication date: 2020-05-15
Anticipated expiration: 2029-05-01

Abstract

The utility model discloses a collodion mop with convenient use, which comprises a mop rod, a mop head, a wiping material matched with the mop head and a water squeezing frame which can move up and down along the mop rod; the method is characterized in that: the wringing frame comprises a frame body, a joint detachably connected with the frame body and a wringing component arranged on the frame body; the mop rod is provided with a limiting part, and the frame body is provided with a limiting strip which is in rotation stopping fit with the limiting part. The utility model discloses a set up spacing and do the spline cooperation to the locating part, consequently crowded water frame with both can't realize relative rotation for the mop pole, its stability when having improved the convenience of the operation when crowded water and crowded water, guarantee crowded water in-process wiper atress unanimous.

Description

Convenient collodion mop

Technical Field

The utility model belongs to the technical field of burnisher, especially, relate to a convenient to use's glued membrane mop.

Background

The mop is used as an important cleaning tool in daily life, various mops are contained in the market at present, and the mops are roughly divided into conventional mop-shaped mops, flat mops, rotary mops and convenient-to-use collodion mops, wherein the convenient-to-use collodion mops have a large share in the existing market, and have the advantages of convenience in use and capability of directly adhering small dirt to collodion; the existing market already has a convenient-to-use collodion mop which adopts the up-and-down action of the wringing frame to wring water, but when the wringing frame wrings water, the wringing part on the wringing frame can only face to collodion to realize smooth wringing in the wringing process, and the wringing effect can only be guaranteed; when water is squeezed, the water squeezing frame can rotate relative to the mop rod, and after the water squeezing frame rotates relative to the mop rod, the water squeezing frame cannot be aligned with the collodion cotton.

SUMMERY OF THE UTILITY MODEL

The utility model provides a convenient usage collodion mop which is convenient to operate, in order to overcome the defects of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a convenient collodion mop comprises a mop rod, a mop head, a wiping material matched with the mop head and a water squeezing frame capable of moving up and down along the mop rod; the lower end of the mop rod is connected with a connecting fork used for being connected with the mop head, and the mop head comprises a panel and a dragging plate clamped with the panel; the panel is provided with a connecting block movably connected with the connecting fork, the connecting block is provided with an inserting cavity with a downward opening, the middle part of the carriage is provided with a plug capable of being inserted into the inserting cavity, and when the panel is connected with the carriage, the plug can be inserted into the inserting cavity; the connecting fork and the connecting block are movably connected through a shaft body structure; the wringing frame comprises a frame body, a joint detachably connected with the frame body and a wringing component arranged on the frame body; the mop rod is provided with a limiting part, and the frame body is provided with a limiting strip for preventing the limiting part from rotating relative to the frame body.

The utility model is provided with the limiting strip to realize the rotation stopping fit for the limiting part, so that the wringing frame and the mop rod can not realize the relative rotation, and the mode ensures that when the wringing is needed, after the mop head is turned over, the wiping object can always be opposite to the wringing part, therefore, when the wringing frame is pushed and pulled, the accurate wringing effect can be realized each time; the mop wringing frame has the advantages that the operation convenience during wringing is improved, and similarly, the wringing frame is in rotation-stopping connection with the mop rod, so that the wringing frame cannot be clamped due to angular deviation even if moving up and down or the condition that a certain part is not enough in force during wringing is avoided during wringing, the rotation-stopping connection also improves the stability during wringing, and the force of a wiping object is consistent in the wringing process.

Preferably, the shaft body structure comprises a first shaft body and a second shaft body, wherein the first shaft body is provided with a clamping concave part, and the end part of the second shaft body is provided with a clamping convex part which can be inserted into the clamping concave part; through setting up first axis body and second axis body and being connected, it can realize the butt joint mode, and first axis body inserts from yoke one side, and the second axis body inserts from the yoke opposite side, and this in-process can realize first, after the second axis body accomplishes the connection, first, the second axis body can be realized fixing, need not additionally fixed again, can also ensure simultaneously that the hole can aim at on the in-process connecting block of connecting and the yoke hole.

Preferably, a plurality of convex rings clamped with the inner wall of the clamping concave part are arranged on the end surface of the clamping convex part; after the clamping convex part is inserted into the clamping concave part, the convex ring can be firmly abutted against the inner wall of the clamping concave part, so that the first shaft body and the second shaft body are firmly connected.

Preferably, the lower end of the connecting fork is provided with a rotation stopping strip; the second shaft body is provided with a first rotation stopping groove, the first shaft body is provided with a second rotation stopping groove, and the first rotation stopping groove and the second rotation stopping groove are sleeved into the rotation stopping strip after the first shaft body is connected with the second shaft body; the first rotation stopping groove and the second rotation stopping groove are sleeved in the rotation stopping strip, the first shaft body and the second shaft body cannot rotate at the connecting fork, the connection stability of the first shaft body and the second shaft body is improved, the positioning effect can be achieved in the connection process of the first shaft body and the second shaft body, and the first shaft body and the second shaft body are high in stability after installation.

Preferably, the limiting piece is fixed on the mop rod through a screw connector, and a positioning channel for partially inserting the screw connector is arranged on the frame body; the inner wall of the positioning channel can limit the outer wall of the screw connection piece by inserting the screw connection piece into the positioning channel, so that the screw connection piece realizes the rotation stopping matching between the wringing frame and the mop rod again; and the screw connector also realizes the installation and fixation of the limiting part, and the two-time rotation stopping matching can be realized by fixing the limiting part once through the screw connector.

Preferably, the limiting member comprises a connecting part sleeved on the mop rod and a limiting part arranged on the end part of the connecting part, and the screw connector is connected with the connecting part; the limiting part and the connecting part are integrally formed; the connecting part sleeve is arranged on the mop rod, so that the contact area is large, and the stability of connection between the mop rod and the connecting piece is realized; and the limiting part and the connecting part are integrally formed, so that the strength of the whole limiting part is high.

Preferably, the joint is provided with a concave rail part for inserting the limiting part; spacing portion inserts in the middle of the concave rail, and the inner wall of concave rail is spacing to spacing portion, and this spacing has restricted on the one hand the mop head to throw off from the support body in the middle of, and on the other hand guarantee is when using the mop, and spacing portion is located in the middle of the concave rail, has restricted crowded water frame to take place to rotate and rock and influence normal use.

Preferably, the upper end of the limiting part is provided with a first chamfer part, the lower end of the limiting part is provided with a second chamfer part, the first chamfer part is provided with a first inclined plane part, and the chamfer part is provided with a second inclined plane part; by arranging the first chamfer part and the second chamfer part, when the limiting part is inserted into the concave rail, the end part of the limiting part can gradually enter the concave rail along the first chamfer or the second chamfer, so that the limiting part can be smoothly inserted into the concave rail and the received resistance is small; meanwhile, chamfers are arranged at two ends of the limiting part, the direction of the limiting part does not need to be specially determined when the limiting part is installed, and the limiting part can be normally used only by installing the connecting part on the mop rod; make spacing portion end department width diminish through setting up first inclined plane portion and second inclined plane portion, consequently spacing portion can insert more accurately in the middle of the concave rail.

Preferably, a movable channel is arranged on the joint, and the screw connector can move into the movable channel from the positioning channel; through the arrangement of the movable channel communicated with the positioning channel, when the screw connector moves along with the mop rod, the screw connector can move into the movable channel through the positioning channel, and the mop rod is guaranteed to be always in rotation fit with the water squeezing frame.

Preferably, the mop rod comprises a first rod body, a second rod body detachably connected with the first rod body, and a third rod body detachably connected with the second rod body, and the limiting part is arranged on the third rod body; the split type mop rod can be conveniently detached through the first rod body, the second rod body and the third rod body in the transportation process, so that the split type mop rod is conveniently separated for transportation.

Preferably, the mop rod comprises a first rod body, a second rod body detachably connected with the first rod body, and a third rod body detachably connected with the second rod body, and the limiting part is arranged on the third rod body; a clamping piece is arranged in the third rod body, and a first clamping part and a second clamping part which are elastically arranged are arranged on the clamping piece; the second rod body is provided with a first bayonet through which the first clamping part penetrates and a second bayonet through which the second clamping part penetrates; the upper end surface of the first buckling part is an inclined surface which is obliquely arranged; the first buckling part and the second buckling part are arranged, the second rod body and the third rod body are tightly connected in a twice buckling mode, and the connection can improve the stability of the second rod body and the third rod body after the second rod body and the third rod body are connected; the inclined surface is arranged on the end surface of the first clamping part, so that the second rod body can gradually press the first clamping buckle along the inclined surface in the process that the second rod body is sleeved into the third rod body, and the second rod body and the third rod body can be conveniently connected together; the third rod body and the clamping piece which are convenient to connect through the rotation stopping convex part and the rotation stopping concave part are connected more firmly, and the clamping piece is prevented from rotating to influence the effect of connection between the third rod body and the clamping piece.

To sum up, the utility model discloses a set up spacing and do the spline cooperation to the locating part, consequently crowded water frame with both can't realize relative rotation for the mop pole, its convenience of operation when having improved crowded water and the stability when crowded water, guarantee crowded water in-process wiper atress unanimous.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

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

Fig. 3 is an explosion diagram of the wringing rack of the present invention.

Fig. 4 is a schematic structural view of the wringing rack joint of the present invention.

Fig. 5 is a schematic structural view of the wringing rack body of the present invention.

Fig. 6 is a schematic structural view of a third rod of the present invention.

Fig. 7 is an exploded view of the third rod of the present invention.

Fig. 8 is a schematic structural diagram of the locating part of the present invention.

Fig. 9 is an exploded view of the mop head of the present invention.

Fig. 10 is an exploded view of the mop head of the present invention.

Fig. 11 is a first schematic structural diagram of the shaft structure of the present invention.

Fig. 12 is a schematic structural diagram of the shaft structure according to the present invention.

Detailed Description

In order to make the technical field personnel understand the utility model discloses the scheme, will combine the drawing in the embodiment of the utility model below, to the technical scheme in the embodiment of the utility model carries out clear, complete description.

As shown in fig. 1-12, a convenient collodion mop comprises a mop rod 1, a mop head 2, a wiping material 3 and a wringing frame 4, wherein the mop rod 1 is connected with the mop head 2, the wiping material 3 is connected with the mop head 2, the wringing frame 4 is sleeved on the mop rod 1, and the wringing frame 4 can move up and down along the mop rod 1 to squeeze the wiping material to remove water; the mop rod 1 comprises a first rod body 11, a second rod body 12 and a third rod body 13, wherein the first rod body, the second rod body and the third rod body are all metal rods, the upper part of the first rod body 11 is connected with a handle sleeve 111, and the handle sleeve 111 is a plastic sleeve; the lower part of the first rod body 11 is provided with a screw head, the upper part of the second rod body 12 is provided with a joint connected with the screw head, and therefore when the first rod body 11 and the second rod body 12 are connected, the joint can be connected with the screw head.

Further, a square first bayonet 121 and a square second bayonet 122 are arranged at the lower part of the second rod 12, a clamping piece 14 is arranged at the upper part of the third rod 13, the clamping piece is a plastic block, the clamping piece 14 is fixed inside the third rod 13 and partially protrudes out of the end part of the third rod 13, an opening is arranged on the third rod 13, a first clamping part 141 and a second clamping part 142 are arranged on the clamping piece 14, the first clamping part 141 is a plastic part with elasticity, and the second clamping part 142 is also a plastic part with elasticity; two openings are arranged at the upper part of the third rod body 13, and the first buckling part 141 and the second buckling part 142 respectively penetrate out of the two openings; the upper end surface of the first buckling part 141 is an inclined surface which is obliquely arranged; the second fastening portion 142 is a plastic portion, and after the second rod 12 and the third rod 13 are connected, the first fastening portion 141 penetrates out of the first bayonet 121, and the second fastening portion 142 penetrates out of the second bayonet 122, so that the second rod 12 and the third rod 13 are connected with each other; meanwhile, the side wall of the clamping piece 14 is provided with a rotation stopping concave part 140, and the side wall of the upper part of the third rod body 13 is recessed from outside to inside to form a rotation stopping convex part 130 clamped into the rotation stopping concave part 140, so that the clamping piece 14 is fixed.

Specifically, the sub-unit connection of the third body of rod 13 has even cover 15, even cover 15 is the plastics cover be equipped with concave strip on the lateral wall of even cover 15, the lateral wall outside-in of the third body of rod 13 lower part is sunken to form and can block into the protruding strip in the depressed part, and then realize the third body of rod 13 with even cover 15 links together be equipped with elasticity knot portion 151 on even cover 15 be equipped with the through-hole on the third body of rod 13, elasticity is detained the portion and is followed wear out in the middle of the through-hole, the third body of rod 13 sub-unit connection has connect fork 16, connect fork 16 to be the plastics fork, be equipped with on the connect fork 16 and detain mouthful 161, work as connect fork 16 with after the third body of rod 13 links to each other, detain portion 151 is followed it wears out in the middle of mouthful 161 to realize connecting fork 16 and the connection can be dismantled to the third body of.

Further, a groove is formed in the connecting fork 16, a spring is arranged in the groove, the upper end of the spring abuts against the inner wall of the upper end of the groove body, a plastic part is connected to the lower portion of the spring, and the abutting part is a plastic part and is located between the connecting forks; the clevis 16 is connected to the mop head. Specifically, the mop head 2 comprises a panel 21 and a carriage 22, the panel 21 and the carriage 22 are both plastic plates, wherein the upper end surface of the panel is the back surface of the whole mop head; the edges of the panel 21 and the carriage 22 are clamped, which is the prior art, and therefore, the details are not described herein; the panel 21 is provided with a connecting block 211 movably connected with the connecting fork 16, the connecting block 211 is a plastic block similar to a square, the connecting block 211 is provided with an inserting cavity 2 with a downward opening, the middle part of the carriage is provided with a plug 220 capable of being inserted into the inserting cavity 210, the shape of the plug 220 is the same as that of the connecting block 211, the panel 21 is connected with the carriage 22, and the plug 220 can be inserted into the connecting part 211, so that the middle parts of the panel 21 and the carriage 22 are connected; the panel 21 is provided with a through hole, the back surface of the panel 21 is detachably connected with a switch 27, the switch 27 is provided with an assembling part 25 and a pressing part 26, and the pressing part 26 is a part with a circular upper end surface; the pressing part 26 can partially penetrate out of the upper part of the panel 21; the mounting portion 25 is provided with a cross-shaped groove, the bottom surface of the panel 21 is provided with a cross-shaped mounting protrusion 212, the mounting protrusion 212 is inserted into the mounting portion 25 when the switch 27 is connected, the bottom surface of the panel 21 is provided with a concave portion 213, the concave portion 213 is a groove formed by two convex strips provided on the bottom surface of the panel, and some portions of the switch 27 are positioned in the concave portion 213.

Further, the connecting fork 16 is connected with the connecting block 211 through a shaft body structure, the shaft body structure comprises a first shaft body 199 and a second shaft body 198, the first shaft body and the second shaft body are both plastic shafts, a clamping concave part 197 is arranged on the first shaft body 199, a clamping convex part 193 which can be inserted into the clamping concave part 197 is arranged at the end part of the second shaft body 198, and a plurality of rings of convex rings are arranged on the surface of the clamping convex part 193; the lower end of the connecting fork 16 is provided with two through holes, the inner walls of the two through holes are provided with rotation stopping strips 169 respectively, the second shaft body 198 is provided with a first rotation stopping groove 192, the first shaft body 199 is provided with a second rotation stopping groove 195, and after the first shaft body 199 and the second shaft body 198 are connected, the first rotation stopping groove and the second rotation stopping groove can be sleeved into the rotation stopping strips 169 respectively.

Further, the wringing frame 4 comprises a frame body 41, a joint 43 and a wringing component 45, the frame body 41 is a plastic frame with a rod-shaped middle upper part, the frame body 41 is sleeved on the mop rod, the frame body 41 can move up and down along the mop rod 1, a frame body part 42 is arranged at the lower part of the frame body 41, the frame body part 42 is similar to a square frame, and the joint 43 and the wringing component 45 are both arranged on the frame body part 42; the connector 43 is a plastic head, the connector 43 can be detachably connected with the inner wall of the frame body 42, two guide rail convex strips 44 are arranged on the side wall of the connector 43, the guide rail convex strips 44 are plastic strips, the end surfaces of the guide rail convex strips 44 are planes, one end of each guide rail convex strip 44 is provided with a first inclined surface 441, and the other end of each guide rail convex strip 44 is provided with a second inclined surface 442; during the water squeezing, the upper end surface of the panel 21 contacts the rail rib 44 and moves along the rail rib 44. Be equipped with locking structure on the support body 41, this locking structure can be used to fix the frame of squeezing water to the second body of rod, locking structure includes locking piece and elastic component, locking piece 45 is the plastic block be equipped with the locking convex part on the locking piece 45, this locking piece 45 with the upper portion swing joint of support body 41, elastic component 451 is the spring, this elastic component 451 one end with support body 41 links to each other, and the other end with locking piece 451 contacts, be equipped with perforation 418 on the support body 41, perforation 418 supplies the locking convex part passes be equipped with the locking groove on the second body of rod, the locking convex part can insert in the middle of the locking groove to realize the mutual locking of support body and second body of rod.

Specifically, two insertion convex parts 421 are arranged on the inner wall of the frame part 42, the insertion convex parts 421 are plastic strips, and the lower ends of the insertion convex parts 421 are provided with limiting concave parts 429; an inserting concave part 437 is arranged on the side wall of the joint 43, a limiting convex part is arranged at the bottom of the inserting concave part 437, the limiting convex part is a plastic convex part with the same shape as the limiting concave part 429, and when the inserting convex part 421 is inserted into the inserting concave part 437, the limiting convex part can enter the limiting concave part 429; a positioning protrusion 434 is provided on the upper portion of the contact 43, the positioning protrusion 434 is a protrusion having a cross section of an approximately triangular shape, a positioning recess 427 is formed on the upper end surface of the housing 42 in a recessed manner, the shape of the positioning recess 427 is the same as that of the positioning protrusion 434, and the positioning protrusion 434 is inserted into the positioning recess 427 when the contact 43 is connected to the housing 42.

Further, two connecting protrusions 422 are provided on the upper portion of the frame portion 42, the connecting protrusions 422 are plastic protrusions, and protrusions 428 are provided on the side walls of the connecting protrusions 422; the connector 43 is provided with a connecting concave portion 435, the connecting convex portion 422 can be inserted into the connecting concave portion 435, the convex portion 422 is a convex strip connected with the inner wall of the frame portion 42 and the inner wall of the connecting convex portion 422, the side wall of the connecting concave portion 435 is provided with a gap portion 436, and the gap portion 436 is penetrated by the convex portion 422; after the connection protrusion 422 is inserted into the connection recess 435, the bottom of the connection recess 435 is connected to the connection protrusion 422 by a screw.

In order to realize that the wringing frame 4 is locked relative to the mop rod 1, the third rod body 13 is connected with a limiting piece 18, the limiting piece 18 is in an omega-shaped section, the limiting piece 18 comprises a C-shaped connecting part 181 and a limiting part 182, the connecting part 181 is connected with the third rod body 13 through a screw connector 17, and the screw connector 17 is a bolt; the limiting part 182 is a convex strip, the limiting part 182 is connected with the end part of the connecting part 181, the upper end of the limiting part 182 is provided with a first chamfer part 185 and a second chamfer part 186, the first chamfer part 186 is provided with a first inclined plane part 187, the second chamfer part 186 is provided with a second inclined plane part 188, the inner wall of the joint 43 is provided with two concave rail parts 433, the limiting part 182 can be inserted into the concave rail parts 433, and the upper end part of the concave rail parts 433 is flared; the frame body 41 is provided with a limiting strip 411 for preventing the limiting member 18 from rotating relative to the frame body; the limiting piece 411 is arranged to be matched with the limiting piece 18 in a rotation stopping manner, so that the wringing frame 4 and the mop rod 1 cannot rotate relatively, and in this way, when wringing is needed, after the mop head 2 is turned over, the wiping object 3 always faces the wringing piece, so that when the wringing frame is pushed and pulled, accurate wringing effect can be achieved each time; the frame body 41 is provided with a positioning channel 410 for the screw 17 to be partially inserted; the inner wall of the positioning channel can limit the outer wall of the screw connection piece by inserting the screw connection piece into the positioning channel, so that the screw connection piece realizes the rotation stopping matching between the wringing frame and the mop rod again; the screw connector also realizes the installation and fixation of the limiting piece, and the two-time rotation stopping matching can be realized by fixing the limiting piece once through the screw connector; the joint 43 is provided with a movable channel 430, and the screw 17 can move from the positioning channel 410 to the movable channel 430.

Claims

1. A convenient collodion mop comprises a mop rod (1), a mop head (2), a wiping material (3) matched with the mop head (2) and a water squeezing frame (4) capable of moving up and down along the mop rod (1); the lower end of the mop rod (1) is connected with a connecting fork (16) which is used for being connected with the mop head (2), and the mop head (2) comprises a panel (21) and a planker (22) which is clamped with the panel (21); the panel (21) is provided with a connecting block (211) movably connected with the connecting fork (16), the connecting block (211) is provided with an inserting cavity (210) with a downward opening, the middle part of the carriage (22) is provided with a plug (220) capable of being inserted into the inserting cavity (210), and when the panel (21) is connected with the carriage (22), the plug (220) can be inserted into the inserting cavity (210); the method is characterized in that: the connecting fork (16) is movably connected with the connecting block (211) through a shaft body structure; the wringing frame (4) comprises a frame body (41), a joint (43) detachably connected with the frame body (41) and a wringing component (46) arranged on the frame body (41); the mop rod (1) is provided with a limiting piece (18), and the frame body (41) is provided with a limiting strip (419) for blocking the limiting piece (18) from rotating relative to the frame body (41).

2. A convenient collodion mop as recited in claim 1, wherein: the shaft body structure comprises a first shaft body (199) and a second shaft body (198), a clamping concave part (197) is arranged on the first shaft body (199), and a clamping convex part (193) capable of being inserted into the clamping concave part (197) is arranged at the end part of the second shaft body (198).

3. A convenient collodion mop as recited in claim 2, wherein: the end face of the clamping convex part (193) is provided with a plurality of convex rings clamped with the inner wall of the clamping concave part (197).

4. A convenient collodion mop as recited in claim 2, wherein: the lower end of the connecting fork (16) is provided with a rotation stopping strip (169); the second shaft body (198) is provided with a first rotation stopping groove (192), the first shaft body (199) is provided with a second rotation stopping groove (195), and after the first shaft body (199) and the second shaft body (198) are connected, the first rotation stopping groove and the second rotation stopping groove are sleeved into the rotation stopping strip (169).

5. A convenient collodion mop as recited in claim 1, wherein: the limiting piece (18) is fixed on the mop rod (1) through a screw connector (17), and a positioning channel (410) for the screw connector (17) to be partially inserted is arranged on the frame body (41).

6. A convenient collodion mop as recited in claim 5, wherein: the limiting piece (18) comprises a connecting part (181) arranged on the mop rod (1) and a limiting part (182) arranged on the end part of the connecting part (181), and the screw connector (17) is connected with the connecting part (181); the limiting part (182) and the connecting part (181) are integrally formed.

7. A convenient collodion mop as recited in claim 6, wherein: the joint (43) is provided with a concave rail part (433) for the insertion of the limiting part (182).

8. A convenient collodion mop as recited in claim 6, wherein: the upper end of the limiting part (182) is provided with a first chamfer part (185), the lower end of the limiting part (182) is provided with a second chamfer part (186), the first chamfer part (185) is provided with a first inclined plane part (187), and the second chamfer part (186) is provided with a second inclined plane part (188).

9. A convenient collodion mop as recited in claim 5, wherein: the joint (43) is provided with a movable channel (430), and the screw connector (17) can move into the movable channel (430) from the positioning channel (410).

10. A convenient collodion mop as recited in claim 1, wherein: the mop rod (1) comprises a first rod body (11), a second rod body (12) detachably connected with the first rod body (11) and a third rod body (13) detachably connected with the second rod body (12), and the limiting piece (18) is arranged on the third rod body (13); a clamping piece (14) is arranged in the third rod body (13), and a first clamping part (141) and a second clamping part (142) which are elastically arranged are arranged on the clamping piece (14); a first bayonet (121) through which the first buckling part (141) partially penetrates and a second bayonet (122) through which the second buckling part (142) partially penetrates are arranged on the second rod body (12); the upper end surface of the first buckling part (141) is an inclined surface which is obliquely arranged.