CN219668896U - Vacuum emulsion bottle with shutoff - Google Patents

Abstract

The utility model discloses a vacuum emulsion bottle with a shutoff, and belongs to the field of cosmetics. The vacuum emulsion bottle with a shutoff includes: the inner bottle combination is arranged in the outer bottle and connected with the pump core combination, the pump core combination is arranged at the upper end of the inner bottle combination, the nozzle is arranged at the upper end of the pump core combination through the shoulder sleeve, the closer component is arranged among the nozzle, the shoulder sleeve and the pump core combination, and the closer component is used for opening or closing the pump core combination through the rotation of the shoulder sleeve. Through setting up this closer subassembly, designed through rotatory locking mistake prevention press mechanism, this product has put this kind of control mechanism in shower nozzle department, realizes locking and opening the action through rotatory shoulder cover, and the replacement mode of bottle combination in this product is the screw thread to close simultaneously, and two rotations are separated through inside pump core combined mechanism, and each other is incoherent, does not influence the function.

Description

Vacuum emulsion bottle with shutoff

Technical Field

The utility model relates to the field of cosmetic packaging, in particular to a vacuum emulsion bottle with a closer.

Background

Cosmetic means chemical industry or fine chemical products which are spread on any part of the surface of the human body such as skin, hair, nails, lips and teeth, etc. by applying, spraying or the like to achieve cleaning, maintenance, beauty, finishing and changing the appearance, or to correct the smell of the human body and maintain a good state.

The prior cosmetic packaging has a vacuum emulsion bottle, and the basic principle is that a small nozzle is arranged at the position of a bottle mouth, and liquid in the bottle body is conveyed to the outside for people to use by pressing the nozzle. However, the structure of the vacuum nozzle is extremely easy to cause false pressing in the use process, so that liquid flows out and cosmetics are wasted.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a vacuum emulsion bottle with a closer.

The technical scheme of the utility model is as follows: a vacuum emulsion bottle with a shutoff, comprising:

an outer bottle;

the inner bottle combination is arranged in the outer bottle and is connected with the pump core combination;

the pump core assembly is arranged at the upper end of the inner bottle assembly; and

the nozzle is arranged at the upper end of the pump core combination through the shoulder sleeve, the shutoff device component is arranged among the nozzle, the shoulder sleeve and the pump core combination, and the shutoff device component realizes the opening and closing of the pump core combination through the rotation of the shoulder sleeve.

Further, the shutter assembly includes:

the first ribs are arranged at the lower end of the shoulder sleeve;

the first limiting groove is arranged at the outer side of the pump core assembly and comprises a first vertical groove and a first horizontal groove which are communicated with each other;

the first ribs are positioned in the first limiting grooves and can rotate under the action of external force, and when the first ribs are positioned in the first horizontal grooves, the pump core assembly is in a closed state; when the first ribs are positioned in the first vertical groove, the pump core assembly is in an open state. When the first ribs are positioned in the first horizontal groove, the pump core combination cannot be pressed, namely, the pump core combination is in a closed state; when the first ribs are positioned in the first vertical grooves, the pump core combination can be pressed along the direction in the first vertical grooves, namely in an open state; namely, the turning of the shoulder sleeve realizes the switching of the opening state and the closing state.

Further, a first salient point is arranged in the first horizontal groove, and the first salient point is arranged in an arc shape. Namely, when the first ribs pass over the first salient points, the closed state can be felt by a user conveniently, and when the closed state can be ensured, the pump core can not shake, so that the pump core is opened in a combined way.

Further, the inner wall of the shoulder sleeve and the outer wall of the pump core combination are respectively provided with a clamping block which can be clamped in a vertically staggered manner. Generally, the arrangement of such a misalignment engagement can ensure a tight connection in the up-down direction without affecting rotation.

Further, a first opening is formed in the circumferential side wall of the nozzle, the shoulder sleeve is sleeved on the circumferential direction of the nozzle, and the first ribs penetrate through the first opening to be connected with the pump core in a combined mode. I.e. a stable connection to the nozzle is ensured.

Further, the upper end of the shoulder sleeve is provided with an inwards-contracted clamping ring. The arrangement of the clamping ring and the nozzle in an abutting manner ensures the stability of the nozzle.

Further, the inner bottle combination and the pump core combination are connected through threads, a lower positioning convex point is arranged on the inner bottle combination, an upper positioning groove is arranged on the pump core combination, and the lower positioning convex point and the upper positioning groove are matched and positioned. Namely, when the inner bottle combination is connected with the pump core combination, the positioning connection is realized through the cooperation of the lower positioning convex points and the upper positioning grooves. Ensuring the connection tightness. The outer bottle is clamped between the pump core combination and the inner bottle combination, and the outer bottle is positioned at the outer side of the inner bottle combination.

And set up the direction inclined plane on the lower location bump, go up the location recess and set up through two location bumps that have the interval, the interval of two is last location recess, the connection of convenient lower location bump and last location recess.

Further, the shower nozzle further comprises a cover, wherein the cover is arranged above the shower nozzle.

Further, the inner bottle combination is also a replacement combination, the replacement combination comprises a replacement inner bottle, an inner plug capable of sealing the upper end of the replacement inner bottle is arranged at the upper end of the replacement inner bottle, and a replacement cover is arranged at the upper end of the replacement inner bottle in a threaded manner; the inner plug is in an inverted omega shape, and a dividing groove is arranged at the bottom of the inner plug. When the pump is assembled, the lower end of the pump core assembly is pressed downwards, and the bottom of the inner plug is torn along the dividing groove; the tightness during the assembly process is ensured.

Further, the inner plug is made of rubber. When the bottom of the inner plug is torn along the dividing groove, the inner plug can rebound automatically under the action of elasticity when the inner bottle is replaced and taken down, namely the dividing groove is closed again, so that the leakage of unused materials is avoided.

Further, another of the shutter assemblies includes:

the second ribs are arranged on the inner side of the upper end opening of the shoulder sleeve and extend to the inner wall beyond the connecting ring along the radial direction;

the connecting ring is clamped in the shoulder sleeve, the upper end of the connecting ring is exposed out of the upper end of the shoulder sleeve and connected with the nozzle, the lower end of the connecting ring is connected with the outer bottle, and a pump core combination is arranged in the connecting ring;

the second limiting groove is arranged at the outer side of the pump core assembly, the second limiting groove comprises a second vertical groove and a second horizontal groove which are mutually communicated, the second ribs are positioned in the second limiting groove and can rotate under the action of external force, and when the second ribs are positioned in the second horizontal groove, the pump core assembly is in a closed state; and when the second ribs are positioned in the second vertical grooves, the pump core assembly is in an open state. The upper end of the pump core combination is connected with the nozzle, and the lower end is connected with the inner bottle combination through threads.

Further, a second salient point is arranged in the second horizontal groove, and the second salient point is arranged in an arc shape. Namely, when the second ribs pass over the second convex points, the user can feel the closed state conveniently, and the pump core combination is opened because the second ribs do not shake when the closed state is ensured.

Further, set up the joint groove on the inner wall of outer bottle, the joint groove is L type setting set up the joint piece on the go-between, just the joint piece gets into and rotates along the vertical portion of joint groove and carries out horizontal part. And then the clamping connection is realized.

Further, a clamping convex point is arranged in the horizontal part of the clamping groove, and the clamping block passes over the clamping convex point and is positioned in the horizontal part of the clamping groove. The connection stability of the outer bottle and the connecting ring is ensured.

The beneficial technical effects of the utility model are as follows: through setting up this closer subassembly, designed through rotatory locking mistake press prevention mechanism, this product has put the mechanism in shower nozzle department, realizes locking and opening the action through rotatory shoulder cover (first kind is built-in shoulder cover; second kind exposes the shoulder cover), and the replacement mode of bottle combination in this product is the screw thread to be closed simultaneously, and two rotations are separated through inside pump core combined mechanism, and is incoherent each other, does not influence the function.

Drawings

Fig. 1 is a schematic perspective view of a vacuum emulsion bottle of a first type of shutter assembly.

Fig. 2 is a schematic diagram of the explosive structure of fig. 1.

Fig. 3 is a schematic view of a first shoulder pad.

Fig. 4 is a schematic view of a first nozzle.

Fig. 5 is a schematic view of a first pump core combination.

Fig. 6 is a schematic view of a first inner bottle combination.

Fig. 7 is a schematic view of an assembly process of the vacuum emulsion bottle of the first closure assembly.

Fig. 8 is a schematic view of the use of a vacuum emulsion bottle with a first closure assembly.

Fig. 9 is a schematic perspective view of a vacuum emulsion bottle of a second type of shutter assembly.

Fig. 10 is a schematic view of the explosive structure of fig. 9.

Fig. 11 is a schematic view of a second shoulder strap.

Fig. 12 is a schematic view of a connecting ring.

Fig. 13 is a schematic view of a second pump core combination.

Fig. 14 is a schematic view of a second outer bottle.

Fig. 15 is a schematic view of an assembly process of a vacuum emulsion bottle of a second closure assembly.

Fig. 16 is a schematic view of the use of a vacuum emulsion bottle with a second closure assembly.

Fig. 17 is a schematic diagram of an alternative combination.

Fig. 18 is a schematic view of an inner plug.

Fig. 19 is a schematic view of the inner plug in a use state.

In the figure:

1. an outer bottle is arranged on the inner side of the bottle,

2. an inner bottle combination, 21, a replacement combination, 211, a replacement inner bottle, 212, an inner plug, 213, a replacement cap, 214, a dividing groove,

3. the pump core is combined with the pump body,

4. the nozzle is provided with a nozzle which is provided with a nozzle,

5. the shoulder sleeve is provided with a shoulder sleeve,

6. the closer component 601, the first ribs 602, the first limit grooves 6021, the first vertical grooves 6022, the first horizontal grooves 6023, the first protruding points 603, the clamping blocks 604, the first openings 605, the lower positioning protruding points 606, the upper positioning grooves,

611. second ribs, 612, connecting rings, 613, second limit grooves, 6131, second vertical grooves, 6132, second horizontal grooves, 6133, second convex points, 614, clamping grooves, 615, clamping blocks, 616, clamping convex points,

7. and a cover.

Detailed Description

In order that the manner in which the above recited features of the present utility model are attained and can be understood in detail, a more particular description of the utility model, briefly summarized below, may be had by reference to the appended drawings and examples, which are illustrated in their embodiments, but are not intended to limit the scope of the utility model.

Referring to fig. 1-19, a vacuum emulsion bottle with a shutoff in this embodiment comprises:

an inner bottle combination 2 arranged in the outer bottle 1 and connected with the pump core combination 3;

the pump core assembly 3 is arranged at the upper end of the inner bottle assembly 2; and

the nozzle 4, the nozzle 4 passes through shoulder cover 5 to be set up in the upper end of pump core combination 3, and sets up the shutoff ware subassembly 6 between nozzle 4, shoulder cover 5 and the pump core combination 3, and the shutoff ware subassembly 6 passes through the rotation of shoulder cover 5 and realizes opening and closing of pump core combination 3.

Further, referring to fig. 2-6, the shutter assembly 6 includes:

the first rib 601 is arranged at the lower end of the shoulder sleeve 5;

the first limiting groove 602, the first limiting groove 602 arranged outside the pump core assembly 3 comprises a first vertical groove 6021 and a first horizontal groove 6022 which are communicated with each other;

the first rib 601 is located in the first limiting groove 602 and can rotate under the action of external force, and when the first rib 601 is located in the first horizontal groove 6022, the pump core assembly 3 is in a closed state; when the first rib 601 is located in the first vertical groove 6021, the pump core assembly 3 is in an open state. That is, when the first rib 601 is in the first horizontal groove 6022, the pump core assembly 3 cannot be pressed, that is, is in a closed state; when the first rib 601 is located in the first vertical groove 6021, the pump core assembly 3 can be pressed along the direction in the first vertical groove 6021, namely in an open state; i.e. the switching between the open and closed state is achieved by rotating the shoulder sleeve 5.

Further, referring to fig. 5, a first bump 6023 is disposed in the first horizontal groove 6022, and the first bump 6023 is disposed in an arc shape. That is, when the first rib 601 passes over the first protruding point 6023, the user can feel the closed state conveniently, and when the closed state can be ensured, the pump core assembly 3 can not shake, so that the pump core assembly is opened.

Further, referring to fig. 3 and 5, engaging blocks 603 capable of being engaged in a vertically staggered manner are provided on the inner wall of the shoulder sleeve 5 and the outer wall of the pump core assembly 3, respectively. Generally, the arrangement of such a misalignment engagement can ensure a tight connection in the up-down direction without affecting rotation.

Further, referring to fig. 4, a first opening 604 is provided in a circumferential side wall of the nozzle 4, and the shoulder sleeve 5 is sleeved on the circumference of the nozzle 4, and the first rib 601 passes through the first opening 604 to be connected with the pump core assembly 3. I.e. a stable connection to the nozzle 4 is ensured.

Further, referring to fig. 3, an inwardly tapered snap ring is provided at the upper end of the shoulder sleeve 5. The arrangement of the snap ring against the nozzle 4 ensures the stability of the nozzle 4.

Further, referring to fig. 5-6, the inner bottle assembly 2 and the pump core assembly 3 are connected through threads, a lower positioning convex point 605 is arranged on the inner bottle assembly 2, an upper positioning groove 606 is arranged on the pump core assembly 3, and the lower positioning convex point 605 is matched with the upper positioning groove 606 for positioning. I.e. when the inner bottle assembly 2 is connected with the pump core assembly 3, the positioning connection is realized by the cooperation of the lower positioning convex point 605 and the upper positioning groove 606. Ensuring the connection tightness. The outer bottle 1 is clamped between the pump core combination 3 and the inner bottle combination 2, and the outer bottle 1 is positioned outside the inner bottle combination 2.

Furthermore, referring to fig. 6, a guiding inclined plane is disposed on the lower positioning bump 605, and the upper positioning groove 606 is disposed through two positioning bumps with a space between them, which is the upper positioning groove 606, so as to facilitate connection between the lower positioning bump 605 and the upper positioning groove 606.

Further, the shower nozzle further comprises a cover 7, and the cover 7 is arranged above the shower nozzle.

Further, referring to fig. 17-19, the inner bottle assembly 2 is also a replacement assembly 21, the replacement assembly 21 includes a replacement inner bottle 211, an inner plug 212 capable of sealing the upper end of the replacement inner bottle 211 is arranged at the upper end of the replacement inner bottle 211, and a replacement cover 213 is also arranged at the upper end of the replacement inner bottle 211 in a threaded manner; the inner plug 212 has an inverted omega shape, and a dividing groove 214 is provided at the bottom of the inner plug 212. When assembling, the lower end of the pump core assembly 3 is pressed downward, and the bottom of the inner plug 212 is torn along the dividing groove 214; the tightness during the assembly process is ensured. The bottom of the inner plug is arc-shaped, so that the inner plug can be closed again when rebounding.

Further, referring to fig. 18-19, the inner plug 212 is made of rubber. When the bottom of the inner plug 212 is torn along the dividing groove 214, the inner bottle 211 can rebound by itself under the elastic action when being removed, i.e. the dividing groove 214 is closed again, thus avoiding the leakage of the unused material.

Further, referring to fig. 9-16, another shutoff assembly 6 includes:

the second ribs 611, the second ribs 611 are arranged on the inner side of the upper end opening of the shoulder sleeve 5, and the second ribs 611 extend to the inner wall beyond the connecting ring 612 along the radial direction;

the connecting ring 612 is clamped in the shoulder sleeve 5, the upper end of the connecting ring 612 is exposed out of the upper end of the shoulder sleeve 5 and is connected with the nozzle 4, the lower end of the connecting ring 612 is connected with the outer bottle 1, and the pump core combination 3 is arranged in the connecting ring 612;

the second limiting groove 613, the second limiting groove 613 is arranged at the outer side of the pump core assembly 3, the second limiting groove 613 comprises a second vertical groove 6131 and a second horizontal groove 6132 which are mutually communicated, the second rib 611 is positioned in the second limiting groove 613 and can rotate under the action of external force, and when the second rib 611 is positioned in the second horizontal groove 6132, the pump core assembly 3 is in a closed state; when the second rib 611 is located in the second vertical groove 6131, the pump core assembly 3 is in an open state. Namely, the upper end of the pump core combination 3 is connected with the nozzle 4, and the lower end is connected with the inner bottle combination 2 through threads.

Further, referring to fig. 13, a second bump 6133 is disposed in the second horizontal groove 6132, and the second bump 6133 is disposed in an arc shape. That is, when the second rib 611 passes over the second bump 6133, the user can feel the closed state conveniently, and the pump core assembly 3 can not be opened due to shaking when the closed state is ensured.

Further, referring to fig. 14, a clamping groove 614 is formed in the inner wall of the outer bottle 1, the clamping groove 614 is formed in an L shape, a clamping block 615 is formed on the connecting ring 612, and the clamping block 615 enters and rotates along the vertical portion of the clamping groove 614 to perform horizontal portion. And then the clamping connection is realized.

Further, referring to fig. 14, a clamping bump 616 is disposed in the horizontal portion of the clamping groove 614, and a clamping block 615 is located in the horizontal portion of the clamping groove 614 beyond the clamping bump 616. I.e. the stability of the connection of the outer bottle 1 and the connection ring 612 is ensured.

By arranging the closer component 6, a mechanism for preventing false pressing through rotary locking is designed, the mechanism is arranged at a spray head, locking and opening actions are realized through rotating the shoulder sleeve 5 (the first type is the built-in shoulder sleeve 5; the second type is the exposed shoulder sleeve 5), meanwhile, the replacement mode of the bottle combination 2 in the product is screw screwing, and two parts of rotation are separated through the mechanism of the internal pump core combination 3, are mutually incoherent and do not affect functions.

The first method for using the closer comprises the following steps: referring to figures 7-8 of the drawings,

inserting the pump core combination into the nozzle along the lower part, assembling the combination of the pump core combination and the outer bottle in an alignment way, inserting the shoulder sleeve into the first opening of the nozzle, realizing dislocation clamping of the clamping block, rotating the shoulder sleeve to realize opening and closing at the moment, and turning the shoulder sleeve from left to right to be in a closing state or in an opening state when the shoulder sleeve is turned from left to right as shown in the attached drawing;

finally, the inner bottle combination is connected with the pump core combination along the lower part of the outer bottle in a threaded manner, and finally a cover is covered;

when the novel pump is used, the cover is pulled out, the shoulder sleeve is rotated from right to left, the pump core assembly is in an open state, the button is pressed, the normal discharging is carried out, the novel pump is used, after the novel pump is used, the shoulder sleeve is rotated from left to right, the pump core assembly is in a closed state, the button cannot be pressed, and the cover is closed. The product is in a locking state, so that the leakage problem caused by mistakenly pressing the material in transportation or package is avoided.

Also in this case, the shoulder sleeve is substantially similar to the largest diameter of the pump core combination, being a built-in shutoff assembly.

The second method for using the closer comprises the following steps: with reference to figures 15-16 of the drawings,

the connecting ring is inserted into the shoulder sleeve from bottom to top, and the nozzle is in threaded connection with the upper end of the connecting ring;

inserting the pump core assembly into the connecting ring from bottom to top, and connecting the inner bottle assembly with the lower end of the pump core assembly through threads;

at the moment, the shoulder sleeve can be rotated to realize opening and closing, when the shoulder sleeve rotates from left to right as shown in the attached drawing, the shoulder sleeve is in an opening state, and otherwise, the shoulder sleeve is in a closing state;

then the outer part of the connecting ring is clamped with the outer bottle through the matching of the clamping block and the clamping groove, and finally the cover is covered.

When the novel pump is used, the cover is pulled out, the shoulder sleeve is rotated from left to right, the pump core assembly is in an open state, the button is pressed, the normal discharging is carried out, the novel pump is used, after the novel pump is used, the shoulder sleeve is rotated from left, the pump core assembly is in a closed state, the button cannot be pressed, and the cover is closed. The product is in a locking state, so that the leakage problem caused by mistakenly pressing the material in transportation or package is avoided.

The diameter of the shoulder sleeve is the same as that of the outer bottle, and the outer structure of the closer assembly is provided.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims (10)

1. A vacuum emulsion bottle having a closure, comprising:

an outer bottle (1);

the inner bottle assembly (2) is arranged in the outer bottle (1) and is connected with the pump core assembly (3);

the pump core assembly (3), the said pump core assembly (3) is set up in the upper end of the inner bottle assembly (2); and

the nozzle (4), nozzle (4) are set up in the upper end of pump core combination (3) through shoulder cover (5) set up between nozzle (4), shoulder cover (5) and pump core combination (3) and close ware subassembly (6), just the rotatory pump core combination (3) that opens or close of shoulder cover (5) are passed through to ware subassembly (6).

2. The vacuum emulsion bottle with shutoff of claim 1 wherein: the shutter assembly (6) comprises:

the first ribs (601) are arranged at the lower end of the shoulder sleeve (5);

the first limiting groove (602) is arranged outside the pump core combination (3), and the first limiting groove (602) comprises a first vertical groove (6021) and a first horizontal groove (6022) which are communicated with each other;

the first ribs (601) are positioned in the first limit grooves (602) and can rotate under the action of external force, and when the first ribs (601) are positioned in the first horizontal grooves (6022), the pump core assembly (3) is in a closed state; when the first ribs (601) are positioned in the first vertical grooves (6021), the pump core combination (3) is in an open state.

3. The vacuum emulsion bottle with shutoff of claim 2 wherein: a first salient point (6023) is arranged in the first horizontal groove (6022), and the first salient point (6023) is arranged in an arc shape.

4. The vacuum emulsion bottle with shutoff of claim 1 wherein: and the inner wall of the shoulder sleeve (5) and the outer wall of the pump core combination (3) are respectively provided with a clamping block (603) which can be clamped in a vertically staggered way.

5. The vacuum emulsion bottle with shutoff of claim 1 wherein: a first opening (604) is formed in the circumferential side wall of the nozzle (4), a shoulder sleeve (5) is sleeved on the circumferential direction of the nozzle (4), and a first rib (601) penetrates through the first opening (604) to be connected with the pump core assembly (3).

6. The vacuum emulsion bottle with shutoff of claim 1 wherein: the inner bottle combination (2) and the pump core combination (3) are connected through threads, a lower positioning convex point (605) is arranged on the inner bottle combination (2), an upper positioning groove (606) is arranged on the pump core combination (3), and the lower positioning convex point (605) and the upper positioning groove (606) are matched and positioned.

7. The vacuum emulsion bottle with shutoff of claim 1 wherein: the inner bottle combination (2) is also a replacement combination (21), the replacement combination (21) comprises a replacement inner bottle (211), an inner plug (212) capable of sealing the upper end of the replacement inner bottle (211) is arranged at the upper end of the replacement inner bottle (211), and a replacement cover (213) is also arranged at the upper end of the replacement inner bottle (211) in a threaded manner; the inner plug (212) is in an inverted omega shape, and a dividing groove (214) is arranged at the bottom of the inner plug (212).

8. The vacuum emulsion bottle with shutoff of claim 1 wherein: the other of said shutter assemblies (6) comprises:

the second ribs (611) are arranged on the inner side of the upper end opening of the shoulder sleeve (5), and the second ribs (611) extend to the inner wall beyond the connecting ring (612) along the radial direction;

the connecting ring (612), the connecting ring (612) is clamped in the shoulder sleeve (5), the upper end of the connecting ring (612) is exposed out of the upper end of the shoulder sleeve (5) and is connected with the nozzle (4), the lower end of the connecting ring (612) is connected with the outer bottle (1), and the pump core combination (3) is arranged in the connecting ring (612); and

the second limiting groove (613), the second limiting groove (613) is arranged on the outer side of the pump core assembly (3), the second limiting groove (613) comprises a second vertical groove (6131) and a second horizontal groove (6132) which are communicated with each other, the second rib (611) is positioned in the second limiting groove (613) and can rotate under the action of external force, and when the second rib (611) is positioned in the second horizontal groove (6132), the pump core assembly (3) is in a closed state; when the second ribs (611) are positioned in the second vertical grooves (6131), the pump core combination (3) is in an open state.

9. The vacuum emulsion bottle with shutoff of claim 8 wherein: the inner wall of the outer bottle (1) is provided with a clamping groove (614), the clamping groove (614) is L-shaped, the connecting ring (612) is provided with a clamping block (615), and the clamping block (615) enters along the vertical part of the clamping groove (614) and rotates to perform horizontal part.

10. The vacuum emulsion bottle with shutoff of claim 9 wherein: a clamping convex point (616) is arranged in the horizontal part of the clamping groove (614), and a clamping block (615) passes over the clamping convex point (616) and is positioned in the horizontal part of the clamping groove (614).