CN214854456U - Dress ornament - Google Patents

Abstract

The utility model discloses a dress, a first zipper and a second zipper are both arranged on a front piece, one end of a first rope belt is fixedly arranged on a first side of a hat, the other end of the first rope belt is connected with the first zipper, and when the first zipper is pulled down, the first side of the hat is tightened; one end of the second rope belt is fixedly arranged on the second side of the hat, the other end of the second rope belt is connected with the second zipper, and when the second zipper is pulled down, the second side of the hat is tightened; the hat opening of the hat can be tightened up by pulling down the first zipper and/or the second zipper, so that the hat is prevented from loosening, and the experience feeling is good. The end, far away from the hat, of the first rope belt is fixed through the first zipper, the end, far away from the hat, of the second rope belt is fixed through the second zipper, the free ends of the first rope belt and the second rope belt are changed into a fixed state from an original suspension state, the risk that the first rope belt and the second rope belt are wound to the neck due to swinging is eliminated, and safety is improved. Therefore, the utility model provides a dress possesses good security and experience simultaneously and feels.

Description

Dress ornament

Technical Field

The utility model relates to the technical field of clothing, in particular to dress.

Background

In recent years, cases of child suffocation caused by the rope belts on the clothes occur frequently, and based on the cases, the first mandatory national standard 'safety technical specification of infant and child textile products' specially for infant and child textile products clearly stipulates that the head and neck parts of the clothes of the infant and the children under the age of seven are not allowed to have any rope belts, although the safety risk caused by the rope belts can be eliminated by the stipulation, if the hat of the clothes is not provided with any rope belts, the tightness of the hat cannot be adjusted, the hat always loosens when the violent exercises or wind power is large, and the experience feeling is poor. Therefore, the existing clothes are difficult to simultaneously consider good safety and experience.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a dress, the both ends of first fag end link to each other with cap and first zip fastener respectively, and the both ends of second fag end link to each other with cap and second zip fastener respectively, and when the first zip fastener of drop-down and/or second zip fastener, the shrink is realized to the bill of cap, prevents that the cap from loosening and taking off, and can prevent that first fag end and second fag end from twining the neck, and security and experience are all better.

The specific scheme is as follows:

the utility model provides a dress, including cap and anter, still include:

the first rope belt and the second rope belt are respectively and fixedly arranged on two sides of the cap;

the first zipper is arranged on the front piece and is connected with one end, far away from the hat, of the first rope belt;

the second zipper is arranged on the front piece and is connected with one end, far away from the hat, of the second rope belt;

when the first zipper and/or the second zipper are pulled down, the cap opening of the cap is contracted.

Preferably, the method further comprises the following steps:

a first separation blade which is fixedly arranged on the front piece, is opposite to the first zipper and is used for shielding the first rope belt when the first zipper is pulled down;

and a second separation blade which is fixedly arranged on the front piece, is opposite to the second zipper and is used for shielding the second rope belt when the second zipper is pulled down.

Preferably, the first zipper and the second zipper have the same structure, and the first zipper comprises:

a base;

the first pulling piece and the second pulling piece are respectively and oppositely arranged at the top of the base to pull the base to slide in a reverse direction, and the first pulling piece is connected with the first rope belt;

the locking piece is arranged among the base, the first pull piece and the second pull piece and used for locking the base;

when the first pull piece or the second pull piece is pulled, the locking piece is unlocked;

when the first pull piece and the second pull piece are not pulled, the locking piece keeps locked.

Preferably, the locking member is a U-shaped elastic sheet.

Preferably, the U-shaped spring plate includes:

the first bulge is abutted against the first pull hole of the first pull piece;

the gear shaping is connected with the first bulge and matched with the jack arranged on the base;

when the first pull tab is pulled, the first protrusion is lifted up on the first pull tab so that the first protrusion drives the gear shaping to retract into the insertion hole.

Preferably, the hole edge of the first pull hole is integrally provided with a first shifting block which is matched with the first protrusion to shift the first protrusion.

Preferably, the U-shaped spring further comprises:

the second bulge is abutted against the end part of the base;

a transition groove connected between the first protrusion and the second protrusion;

when the second pull tab is pulled, the second pull tab is separated from the transition groove so that the second pull tab drives the first protrusion to move upwards through the groove edge of the lifting transition groove until the gear shaping is retracted into the insertion hole.

Preferably, the second pulling-on piece is provided with a second pulling hole for the U-shaped elastic piece to pass through, and a second shifting block matched with the transition groove for shifting the transition groove is arranged along the integrated hole of the second pulling hole.

Preferably, one end of the base, which is far away from the first pull piece, is fixedly provided with a stop groove which extends along the height direction of the base to prevent the second protrusion from being separated from the base.

Preferably, the top of base sets firmly at least one T type card post, and the both sides of every T type card post are equipped with left dog and right dog respectively, are equipped with the left mounting hole that is used for installing first pulling-on piece between the double-phase offside of T type card post and left dog, are equipped with the right mounting hole that is used for installing the second pulling-on piece between the double-phase offside of T type card post and right dog.

Compared with the prior art, the utility model provides a dress, including cap, anter, first fag end, second fag end, first zip fastener and second zip fastener. The first zipper and the second zipper are arranged on the front piece, one end of the first rope belt is fixedly arranged on the first side of the hat, the other end of the first rope belt is connected with the first zipper, and when the first zipper is pulled down, the first side of the hat is tightened; one end of the second rope belt is fixedly arranged on the second side of the hat, the other end of the second rope belt is connected with the second zipper, and when the second zipper is pulled down, the second side of the hat is tightened; therefore, the cap opening of the cap can be tightened by pulling down the first zipper and/or the second zipper, the cap is prevented from loosening, and the experience feeling is good.

Compared with the prior art, the hat with the detachable first rope belt is obviously different from the prior art in that one end, far away from the hat, of the first rope belt is fixed through the first zipper, one end, far away from the hat, of the second rope belt is fixed through the second zipper, so that the free ends of the first rope belt and the second rope belt are changed into a fixed state from an original suspension state, the risk that the first rope belt and the second rope belt are wound around the neck due to swinging is eliminated, and safety is improved.

Therefore, the utility model provides a dress possesses good security and experience simultaneously and feels.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a structural diagram of a cap opening of a garment according to an embodiment of the present invention;

FIG. 2 is a schematic view of the embodiment of the present invention showing the shrinkage of the cap opening of the garment;

fig. 3 is a diagram of a structure of a garment with a first blocking piece and a second blocking piece according to an embodiment of the present invention;

FIG. 4 is a block diagram of the first zipper of FIG. 1;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a cross-sectional view of the first zipper of FIG. 4 in a normal condition;

FIG. 7 is a cross-sectional view of the first zipper of FIG. 4 with the first pull tab lifted;

FIG. 8 is a cross-sectional view of the first zipper of FIG. 4 with the second pull tab lifted;

fig. 9 is a structural view of the locking member of fig. 4.

The reference numbers are as follows:

the cap 1, the front piece 2, the first rope belt 31, the second rope belt 32, the first zipper 41, the second zipper 42, the first baffle 51 and the second baffle 52;

a base 411, a first pull tab 412, a second pull tab 413, a locking member 414, a T-shaped clamp column 415, a left stop 416 and a right stop 417;

a receptacle 4111, a stop plate 4112, and a stop groove 4113;

a first pull hole 4121 and a first dial block 4122;

a second pull hole 4131 and a second dial 4132;

a first protrusion 4141, gear teeth 4142, a second protrusion 4143 and a transition groove 4144;

a left mounting hole 4161;

and a right mounting hole 4171.

Detailed Description

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

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 9, fig. 1 is a structural diagram of a cap opening of a garment provided in an embodiment of the present invention when the cap opening is normal; FIG. 2 is a schematic view of the embodiment of the present invention showing the shrinkage of the cap opening of the garment; fig. 3 is a diagram of a structure of a garment with a first blocking piece and a second blocking piece according to an embodiment of the present invention; FIG. 4 is a block diagram of the first zipper of FIG. 1; FIG. 5 is an exploded view of FIG. 4; FIG. 6 is a cross-sectional view of the first zipper of FIG. 4 in a normal condition; FIG. 7 is a cross-sectional view of the first zipper of FIG. 4 with the first pull tab lifted; FIG. 8 is a cross-sectional view of the first zipper of FIG. 4 with the second pull tab lifted; fig. 9 is a structural view of the locking member of fig. 4.

The embodiment of the utility model discloses a dress, including cap 1, anter 2, first fag end 31, second fag end 32, first zip fastener 41 and second zip fastener 42. Both the cap 1 and the front panel 2 may be textile pieces.

One end of the first string 31 is fixed on the first side of the cap 1, the other end of the first string is connected with the first zipper 41, the first zipper 41 is arranged on the front piece 2, when the first zipper 41 is pulled down, the first zipper 41 pulls one end of the first string 31 to move down, and the first side of the cap 1 is tightened; similarly, one end of the second string 32 is fixed on the second side of the cap 1, the other end of the second string is connected with the second zipper 42, the second zipper 42 is arranged on the front piece 2, when the second zipper 42 is pulled down, the second zipper 42 pulls one end of the second string 32 to move down, and the second side of the cap 1 is tightened; when the first zipper 41 and the second zipper 42 are simultaneously pulled down, both sides of the cap 1 are simultaneously tightened. Therefore, the cap opening of the cap 1 can be tightened by pulling down the first zipper 41 and/or the second zipper 42, so that the cap 1 is prevented from loosening, and the experience feeling is good.

The end of the first string 31 far away from the cap 1 is fixed by the first zipper 41, and the end of the second string 32 far away from the cap 1 is fixed by the second zipper 42, so that the free ends of the first string 31 and the second string 32 are changed from the original suspension state to the fixed state, the risk that the first string 31 and the second string 32 are wound around the neck due to swinging is eliminated, and the safety is improved.

The first side of the cap 1 is provided with a first rope hole for the first rope belt 31 to pass through, and one end of the first rope belt 31 is sewn at the end part of the first rope hole. The length and the width of the first rope hole are slightly larger than the width of the shoulder part, so that when the first rope belt 31 is pulled, the first rope belt 31 can be effectively prevented from tying the neck. Similarly, the second side of the cap 1 is provided with a second rope hole for fixing the second rope 32, and the second rope hole and the first rope hole have the same length, and both lengths should not be too long.

The first zipper 41 and the second zipper 42 are symmetrically arranged on the front panel 2, and are specifically sewn on the front panel 2. The first zipper 41 and the second zipper 42 extend along the vertical direction, the first zipper 41 is aligned with the first string 31, and the second zipper 42 is aligned with the second string 32, so that the first string 31 and the second string 32 can move linearly, and the resistance of the first zipper 41 and the second zipper 42 is minimized, and the labor is saved.

To sum up, the utility model provides a dress both possesses good security, possesses good experience again and feels.

Furthermore, the utility model also comprises a first baffle 51 and a second baffle 52, wherein the first baffle 51 is fixedly arranged on the front piece 2. The first flap 51 is rectangular, and three sides thereof are sewn to the front panel 2, and the other side thereof provides a space for fingers to pull the first zipper 41. The first blocking piece 51 is opposite to the first zipper 41, and the first zipper 41 is blocked by the first blocking piece 51, which is beneficial to improving the aesthetic property. When the first zipper 41 pulls the first rope belt 31, the extending length of the first rope belt 31 is lengthened, at the moment, the first blocking piece 51 blocks the first zipper 41, the first blocking piece 51 can also block the extending first rope belt 31, the first rope belt 31 is prevented from being hooked by a foreign object, the neck is favorably further prevented from being tied by the first rope belt 31, and the safety and the attractiveness are improved.

Similarly, the second flap 52 is fixed to the front panel 2 and is also sewn to the front panel 2. The second flap 52 is opposite to the second zipper 42, and the second zipper 42 and the protruding second string 32 are covered by the second flap 52, which has the same function as the first flap 51. The first zipper 41 and the second zipper 42 are parallel to each other and have opposite lengths, and the first blocking piece 51 and the second blocking piece 52 are also parallel to each other and have equal lengths.

Of course, letters, characters, patterns and the like can be arranged on the first blocking piece 51 and the second blocking piece 52, which is beneficial to improving the aesthetic property.

The first zipper 41 includes a base 411, a first pull tab 412, a second pull tab 413, and a locking member 414. The base 411 includes an upper plate and a lower plate which are oppositely disposed, a support core is fixedly disposed between the upper plate and the lower plate, so that one end of the base 411 forms an outlet, and the other end forms two inlets to correspondingly control the engagement or separation of the two sprockets, and the structure and connection relationship of the upper plate, the lower plate and the support core can refer to the prior art. The first pull tab 412 and the second pull tab 413 are respectively disposed at the top of the base 411 in an opposite manner, and can pull the base 411 to slide along the sprocket in an opposite direction. The first pull tab 412 and the second pull tab 413 are arranged in a staggered manner along a sliding direction parallel to the base 411.

The first pull tab 412 is identical in structure to the second pull tab 413, both of which are plate-like structures. The first pull tab 412 is connected to the first string 31, and the second pull tab 413 is provided with a webbing for facilitating a user to pinch the second pull tab 413.

The locking member 414 is disposed between the base 411, the first pull tab 412 and the second pull tab 413, and is used for locking the base 411. When the first pull tab 412 is pulled along the first direction, the locking member 414 is unlocked, the base 411 can slide along the sprocket, and the first pull tab 412 pulls the base 411 to slide along the first direction; when the second pull tab 413 is pulled in the second direction, the locking member 414 is unlocked again, the base 411 can also slide along the sprocket, and the second pull tab 413 pulls the base 411 to slide in the second direction; when the first pull tab 412 and the second pull tab 413 are not pulled, the locking member 414 remains locked, and the base 411 cannot slide along the sprocket. Obviously, the utility model discloses a base 411 of china is equipped with two pulling-on pieces, can follow two directions respectively and stimulate base 411 and slide, still can realize two-way locking simultaneously, and it is more convenient to operate, is favorable to promoting user experience and feels. In addition, the appearance of the base 411 is effectively improved by changing the structure of the base 411 in a breakthrough manner, and the attractiveness of the clothes is still facilitated to be improved.

The locking member 414 is a U-shaped elastic sheet and is made of a thin metal plate.

The U-shaped resilient piece includes a first protrusion 4141 and a gear shaping 4142, the first protrusion 4141 is one of the bent protrusions of the U-shaped resilient piece, and the first protrusion 4141 abuts against the first pulling hole 4121 of the first pulling tab 412. Specifically, the U-shaped resilient piece passes through the first hole 4121, and the concave surface of the inner side of the first protrusion 4141 abuts against the inner side surface of the first hole 4121. The gear shaping 4142 is arranged at one end, close to the first pull tab 412, of the U-shaped elastic sheet, the gear shaping 4142 is connected with the first protrusion 4141, the base 411 is provided with an insertion hole 4111, the gear shaping 4142 penetrates through the first pull hole 4121 and then is inserted into the insertion hole 4111, the gear shaping 4142 is made to penetrate through the insertion hole 4111 and then abuts against the sprocket in the base 411, and the gear shaping 4142 can effectively prevent the base 411 from sliding along the sprocket to achieve self-locking.

Under the normal state, the gear shaping 4142 is inserted into the insertion hole 4111, and the gear shaping 4142 abuts against the sprocket, so that the locking piece 414 is locked; when the first pull tab 412 is pulled, the first pull tab 412 rotates upward relative to the base 411, the hole of the first pull hole 4121 lifts the first protrusion 4141 upward, the first protrusion 4141 drives the gear shaping 4142 upward, the gear shaping 4142 retracts into the insertion hole 4111, the gear shaping 4142 is separated from the sprocket, and the locking member 414 is unlocked.

Specifically, the first pull hole 4121 is integrally provided with a first dial 4122, and the first dial 4122 is engaged with the first protrusion 4141 to dial the first protrusion 4141. The upper surface of the first dial 4122 is a plane, and the lower surface is a circular arc protrusion, the thickness of the circular arc protrusion gradually becomes thicker from the edge to the center, which provides a condition for the first dial 4122 to lift the first protrusion 4141 along the thickness direction of the base 411. Of course, the structure of the first dial 4122 is not limited thereto.

The U-shaped resilient piece further comprises a second protrusion 4143 and a transition groove 4144, the second protrusion 4143 is another bent protrusion of the U-shaped resilient piece, and the second protrusion 4143 abuts against one end of the base 411 away from the first pull tab 412. Specifically, an end of the second protrusion 4143 away from the transition groove 4144 is inclined from the end of the base 411 to the center of the base 411, so that the inner concave surface of the second protrusion 4143 elastically abuts against the end of the upper plate of the base 411. The second protrusions 4143 do not contact the lower plate of the base 411, and they are maintained at a proper distance to avoid interference. The transition groove 4144 is connected between the first protrusion 4141 and the second protrusion 4143, the groove bottom of the transition groove 4144 is provided with a convex rib, one side of the transition groove 4144 close to the first protrusion 4141 is provided with an arc-shaped protrusion protruding in a direction away from the base 411, and the other side of the transition groove 4144 is connected with the second protrusion 4143.

Under normal conditions, the convex rib of the transition groove 4144 abuts against the hole edge of the second pull hole 4131 of the second pull tab 413, the second protrusion 4143 abuts against the end part of the upper plate of the base 411, the first protrusion 4141 abuts against the hole edge of the first pull hole 4121, the gear shaping 4142 abuts against the sprocket through the insertion hole 4111, and the locking piece 414 is kept locked; when the second pull tab 413 is pulled, the second pull hole 4131 is disengaged from the rib of the transition groove 4144, the hole of the second pull hole 4131 abuts against the arc-shaped protrusion between the first protrusion 4141 and the transition groove 4144, and then the first protrusion 4141 is lifted up, so that the first protrusion 4141 drives the gear shaping 4142 to move upwards, the gear shaping 4142 retracts into the insertion hole 4111, the gear shaping 4142 is separated from the sprocket, and the locking member 414 is unlocked.

The second pull hole 4131 is used for the U-shaped elastic sheet to pass through, a second shifting block 4132 is integrally arranged in the hole of the second pull hole 4131, and the second shifting block 4132 is matched with the transition groove 4144 to shift the transition groove 4144. Specifically, the structure of the second dial 4132 is the same as the structure of the first dial 4122, that is, the lower surface of the second dial 4132 is also provided with an arc protrusion, and the arc protrusion can lift the first protrusion 4141 through the arc protrusion, so as to lift the gear shaping 4142, so that the gear shaping 4142 is disengaged from the sprocket.

To define the installation position of the locking member 414, a stop plate 4112 is fixed to an end of the base 411 away from the first pull tab 412, the stop plate 4112 is provided with a stop groove 4113, and the stop groove 4113 extends along the height direction of the base 411 to prevent the second protrusion 4143 from being disengaged from the base 411, and therefore the locking member 414 is prevented from being disengaged from the base 411.

At least one T-shaped clamp column 415 is fixedly arranged at the top of the base 411, a left stop block 416 and a right stop block 417 are respectively arranged on two sides of each T-shaped clamp column 415, mounting grooves are respectively arranged on two opposite sides of each T-shaped clamp column 415 and the corresponding left stop block 416, so that the two opposite sides of each T-shaped clamp column 415 and the corresponding left stop block 416 are combined to form a left mounting hole 4161, and the first pull piece 412 is mounted in the left mounting hole 4161. Similarly, the T-shaped clip 415 and the right stopper 417 have mounting grooves on opposite sides thereof, so that the T-shaped clip 415 and the right stopper 417 are combined to form a right mounting hole 4171, and the second pull tab 413 is mounted in the right mounting hole 4171. During assembly, the T-shaped clamp column is anchored at the top of the base 411, the first pull tab 412 and the second pull tab 413 are placed on the T-shaped clamp column respectively, and the left stop block 416 and the right stop block 417 are anchored on the T-shaped clamp column respectively, so that the first pull tab 412 and the second pull tab 413 are assembled. Specifically, two sets of T-shaped posts 415 are symmetrically disposed on the top of the base 411, and the two sets of T-shaped posts 415 are respectively located on two sides of the locking member 414.

The first zipper 41 and the second zipper 42 have the same structure, and the structure of the second zipper 42 can be referred to the first zipper 41 specifically, and will not be described in detail here.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. Clothing, characterized in that, including cap (1) and front piece (2), still include:

a first rope belt (31) and a second rope belt (32) which are respectively and fixedly arranged at two sides of the hat (1);

the first zipper (41) is arranged on the front piece (2) and connected with one end, far away from the hat (1), of the first rope belt (31);

the second zipper (42) is arranged on the front piece (2) and is connected with one end of the second rope belt (32) far away from the hat (1);

when the first zipper (41) and/or the second zipper (42) are/is pulled down, the cap opening of the cap (1) is contracted.

2. The article of apparel recited in claim 1, further comprising:

a first blocking piece (51) which is fixedly arranged on the front piece (2) and is opposite to the first zipper (41) and used for blocking the first rope belt (31) when the first zipper (41) is pulled down;

a second block piece (52) which is fixedly arranged on the front piece (2), is opposite to the second zipper (42) and is used for shielding the second rope belt (32) when the second zipper (42) is pulled down.

3. The article of apparel according to claim 1, characterized in that the first zip (41) is structurally identical to the second zip (42), the first zip (41) comprising:

a base (411);

a first pulling piece (412) and a second pulling piece (413) which are respectively and oppositely arranged on the top of the base (411) to pull the base (411) to slide in opposite directions, wherein the first pulling piece (412) is connected with the first rope belt (31);

a locking member (414) provided between the base (411), the first pull tab (412) and the second pull tab (413) and locking the base (411);

the latch (414) is unlocked when the first pull tab (412) or the second pull tab (413) is pulled;

the locking member (414) remains locked when the first pull tab (412) and the second pull tab (413) are not pulled.

4. The article of apparel according to claim 3, characterized in that the locking piece (414) is embodied as a U-shaped spring.

5. The article of apparel recited in claim 4, wherein the U-shaped spring plates include:

a first protrusion (4141) abutting against a first pull hole (4121) of the first pull tab (412);

the gear shaping (4142) is connected with the first bulge (4141) and is matched with the jack (4111) arranged on the base (411);

when the first pull tab (412) is pulled, the first protrusion (4141) is lifted up by the first pull tab (412) so that the first protrusion (4141) brings the gear shaping (4142) to retract into the insertion hole (4111).

6. The article of apparel according to claim 5, characterized in that the hole of the first pulling hole (4121) is provided along a single body with a first dial (4122) cooperating with the first protrusion (4141) to dial the first protrusion (4141).

7. The article of apparel recited in claim 5, wherein the U-shaped spring sheet further includes:

a second projection (4143) abutting an end of the base (411);

a transition groove (4144) connected between the first protrusion (4141) and the second protrusion (4143);

when the second pull tab (413) is pulled, the second pull tab (413) is disengaged from the transition groove (4144) so that the second pull tab (413) carries the first protrusion (4141) up by lifting up the groove of the transition groove (4144) until the gear shaping (4142) retracts into the receptacle (4111).

8. The garment according to claim 7, characterized in that the second pull tab (413) is provided with a second pulling hole (4131) for the U-shaped elastic sheet to pass through, and the hole of the second pulling hole (4131) is integrally provided with a second poking block (4132) which is matched with the transition groove (4144) to poke the transition groove (4144).

9. The article of apparel according to claim 7, characterized in that an end of the base (411) remote from the first pull tab (412) is fixedly provided with a stop groove (4113) extending in the height direction of the base (411) for preventing the second protrusion (4143) from disengaging from the base (411).

10. The garment of any one of claims 3 to 8, wherein at least one T-shaped clamp column (415) is fixedly arranged at the top of the base (411), a left stop block (416) and a right stop block (417) are respectively arranged on two sides of each T-shaped clamp column (415), a left mounting hole (4161) for mounting the first pull piece (412) is formed between the T-shaped clamp column (415) and two opposite sides of the left stop block (416), and a right mounting hole (4171) for mounting the second pull piece (413) is formed between the T-shaped clamp column (415) and two opposite sides of the right stop block (417).

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