WO2014075645A1

WO2014075645A1 - Discharge opening retaining clip and container

Info

Publication number: WO2014075645A1
Application number: PCT/CN2013/087542
Authority: WO
Original assignee: 上海鸿研物流技术有限公司
Priority date: 2012-11-14
Filing date: 2013-11-20
Publication date: 2014-05-22
Also published as: CN102923413B; CN102923413A

Abstract

A discharge opening retaining clip and container, the discharge opening fixing clamp (3) comprising a turnplate (31), a plurality of locking pawls (33), and a chassis (32); a transmission mechanism is disposed between the turnplate (31) and the locking pawls (33), such that the rotation of the turnplate (31) causes the locking pawls (33) to change the size of the space enclosed thereby via the transmission mechanism, so as to lock or unlock the discharge opening (2). The container is used to accommodate a liner bag filled with liquid; the discharge opening retaining clip (3) is installed on the container. The discharge opening retaining clip can be pre-installed on a container, and can adapt to the discharge openings of various shapes and sizes, thus facilitating use.

Description

Drain port fixing clip and container

The present invention relates to a clamp, and in particular to a discharge port retaining clip on a large container. Background technique

Today, it is common to use large containers for the transport of bulk liquids. These containers are available in metal, wood and plastic. They all have a bottom and four side panels. Due to sealing problems, they tend to be in containers. Place a liner bag inside, then place the liquid in the liner bag and cover it with a lid. This will protect the liner bag from damage.

When the liquid in the container needs to be discharged, the more common method is to open a hole in the side below the container, the lower part of the bag has a discharge port, and the flange of the discharge port and the liner bag are melted together, and the bag is lined. When placed in the container, its discharge port is aligned with the hole in the container. Most of these discharge ports do not have valves themselves, and the thin diaphragm between the discharge passage of the discharge port and the inside of the liner bag is retained, and the film is pierced only when the pipe with the valve is connected to the discharge port. A part of the discharge port has its own valve, and its discharge passage is directly connected to the inside of the liner bag. It only needs to be directly connected with the pipe to discharge the liquid.

These vents have a specific shape near the root of the flange, such as a square or hexagon. These specific shapes are used to connect with a chuck. When the liner is placed in the container, the chuck is first Will be caught on the drain, and then snap the chuck to the opening below the container. As such, the vent is secured to the container and the protective liner is not easily damaged during use. When the liquid in the container is drained, the liner bag, drain, and chuck are removed and discarded.

A conventional chuck is assembled from two parts, each of which has a pin and a hole that can be fitted to each other, and the intermediate portion is flattened to have a specific shape of the root of the discharge port to be clamped. When such a chuck is mounted at an opening below the side of the large container, the side walls of the opening can be relied upon to limit the separation of the two parts of the chuck. When the liquid in the container is drained, the liner bag, the discharge port, and the chuck are removed, and the chuck can be easily removed from the discharge port, so that it can be reused. However, the shape of the portion of the root of the discharge port for being clamped and fixed is various, and regardless of which of the above-mentioned chucks is required, a plurality of different shapes and sizes are required to match the installation, which causes an increase in cost and an increase in labor. . Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a discharge port fixing clip which can be previously mounted on a container and which can accommodate discharge ports of various shapes and sizes.

In order to achieve the above object, the present invention provides a discharge port fixing clip, characterized in that: the discharge port fixing clip includes a turntable, a plurality of locking claws, and a chassis, and a transmission is arranged between the turntable and the locking claw The mechanism is configured to enable the plurality of locking claws to change the size of the space enclosed by the transmission mechanism when the rotating wheel is rotated, thereby locking or unlocking the discharge opening.

Preferably, the discharge port comprises a flange, a discharge passage, and a hexagonal straight or square straight step, and the discharge port fixing clip is used for clamping or loosening the hexagonal straight step and the square straight step. , thereby locking or unlocking the drain.

In the discharge port fixing clip of the first preferred embodiment of the present invention,

The center of the turntable is provided with a central through hole through which the discharge opening passes, and the bottom surface of the turntable has four contour-shaped grooves, and the four grooves are equally arranged at intervals of 90 degrees along the circumference of the center of the turntable. And contoured such that its point along the length direction gradually moves away from the center of the turntable, and on the side of the turntable opposite the groove, there is also a protrusion for facilitating the operator's hand-held operation; The claw is provided with a slide rail, the front side is provided with a locking plane, and a locking groove is recessed in the middle of the locking plane, and a pin is arranged on the upper surface of the locking claw;

The chassis is provided with a central through hole through which the discharge opening passes, and is provided with four radial sliding grooves, and the four sliding grooves are equally arranged at intervals of 90 degrees around the center of the chassis;

The locking claw is slidable along the sliding groove by the cooperation of the pin and the groove to change the size of the space enclosed by the locking claw, thereby locking or unlocking the discharge opening.

In a first preferred embodiment, preferably, the chassis is further provided with a resilient buckle for securing the chassis to the container.

In the discharge port fixing clip of the second preferred embodiment of the present invention,

The center of the turntable is provided with a central through hole through which the discharge opening passes, and has 4 on the bottom surface of the turntable The contoured troughs are equally arranged at intervals of 90 degrees along the circumference of the center of the turntable, and have a protrusion on one side of the turntable for easy operation by the operator;

One end of the locking claw has a rotation center hole, the other end is a locking plane, a middle portion of the locking plane is a locking groove, and a pin for engaging with the through groove is further provided in a middle portion of the locking claw;

The chassis is provided with a central through hole through which the discharge opening passes, and each of the four corners of the chassis has a rotating center pin, and each of the locking claws is rotatable about the center pin within a certain angle range;

The locking claw is rotatable around the rotation center pin under the cooperation of the pin on the locking claw and the through groove to change the size of the space enclosed by the locking claw, thereby locking or unlocking the discharge mouth.

In the discharge port fixing clip of the third preferred embodiment of the present invention,

The vent fixing clip further has a cover, a front cover, a rear cover, a positioning ring, and two transmission gears, the positioning ring and the turntable are formed as a single piece, and the cover and the cover The turntable connection enables the rotation of the cover to drive the turntable to rotate;

The turntable is provided with a central through hole through which the discharge port passes, and the outer circumference is provided with two driving teeth respectively for meshing with the two transmission gears;

The chassis is provided with holes and grooves for respectively positioning the transmission gear and the locking claw;

The number of the locking claws is two, and a rack that meshes with the transmission gear is disposed thereon, so that when the cover is rotated, the cover drives the turntable to rotate, and then the driving teeth and the Engagement of the transmission gear and engagement of the transmission gear with the locking pawl move the locking pawl to change the size of the space enclosed by the locking pawl to lock or unlock the discharge opening.

In a third preferred embodiment, preferably, the locking claw is a U-shaped member, and the two arms of the U-shape are provided with a rack; the transmission gear includes two teeth respectively meshing with the driving tooth and the rack gear.

In the discharge port fixing clip of the fourth preferred embodiment of the present invention,

The vent fixing clip further has a front cover, a rear cover, and two transmission gears; the center of the turntable is provided with a central through hole through which the discharge opening passes, and has a convenient on one side of the turntable The operator holds the extended portion of the operation, and the outer circumference of the turntable is provided with driving teeth for meshing with the two transmission gears; The chassis is provided with grooves for respectively positioning the two transmission gears; the number of the locking claws is two, and a rack that meshes with the transmission gear is disposed thereon, so that when the rotary table is rotated Engagement of the driving tooth with the transmission gear and engagement of the transmission gear with the locking claw to move the locking claw to change the size of the space enclosed by the locking claw, thereby locking or unlocking the discharge port .

In a fourth preferred embodiment, preferably, the transmission gear is composed of a helical tooth located at a middle portion and a right helical gear and a left helical gear at both ends, and the helical tooth meshes with the driving tooth on the turntable, The right helical gear and the left helical gear are respectively meshed with the racks on the two locking claws.

The present invention also provides a container for accommodating a liquid-filled lining bag, the lining bag is provided with a discharge opening, and a side of the lower portion of the container is provided with a hole, when the lining bag is placed The discharge port is aligned with the hole when in the container, wherein: the discharge port fixing clip as described above is installed in the hole.

The vent fixing clip of the present invention can be pre-mounted on the container, and the shape of the locking claw in the fixing clip is adapted to a plurality of existing vent shapes and the space formed (enclosed) can be adjusted, thereby being clamped Discharge ports of different shapes and sizes, and can be reused and dispensed with recycling operations, making operation easier. DRAWINGS

Figure la is a perspective view of a conventional discharge port;

Figure lb is a schematic diagram of the hexagonal straight order of the discharge port of Figure la;

Figure 2a is a perspective view showing the structure of another commonly used discharge port;

Figure 2b is a schematic view of the hexagonal straight step of the discharge port of Figure 2a;

Figure 3 is an exploded perspective view of the first embodiment of the discharge port fixing clip according to the present invention; Figure 4 is a perspective view of the turntable of the discharge port fixing clip of Figure 3;

Figure 5 is a perspective view of the chassis of the discharge port fixing clip of Figure 3;

Figure 6 is a perspective view of the locking claw of the discharge port fixing clip of Figure 3;

7-8 are schematic views showing the use state of the first embodiment of the discharge port fixing clip of the present invention; Fig. 9 is an exploded perspective view showing the second embodiment of the discharge port fixing clip according to the present invention; Schematic diagram of the use state of the second embodiment of the discharge port fixing clip; Figure 11 is an exploded perspective view showing a third embodiment of the discharge port fixing clip according to the present invention; Figure 12 is a perspective view of the cover of the discharge port fixing clip of Figure 11;

Figure 13 is a perspective view of the turntable of the discharge port fixing clip of Figure 11;

Figure 14 is a perspective view of the transmission mechanism of the discharge port fixing clip of Figure 11;

Figure 15 is a front elevational view of the discharge port retaining clip of Figure 11 after assembly;

16 and 17 are schematic views showing the use state of the third embodiment of the discharge port fixing clip of the present invention; Fig. 18 is an exploded perspective view showing the fourth embodiment of the discharge port fixing clip according to the present invention; and Fig. 19 is the discharge of Fig. 18. Front view of the drive gear of the port retaining clip;

Figs. 20 and 21 are views showing the state of use of the lock claw of the discharge port fixing clip of Fig. 18 when the lock claw is opened and the lock claw is closed, respectively. detailed description

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described in detail with reference to the appended claims The embodiment shown in the drawings is not intended to limit the scope of the invention, but only to illustrate the spirit of the invention. In this document, the upper, lower, left, right, front, and rear refer to the relative positions of the parts in the direction shown.

Figure la-2b shows the structure of two commonly used vents. As shown in Figure la-lb, the discharge port 1 has a flange 1 1 , a discharge passage 13 and a hexagonal straight step 12 . Among them, the hexagonal straight step 12 is a portion that can be used for clamping and fixing. The discharge port 2 and the discharge port 1 are similar in structure. As shown in Figs. 2a-2b, the discharge port 2 also includes a flange 22 and a discharge passage 23, the difference being that in the discharge port 2, the portion for clamping and fixing is a square straight step. twenty two. It should be pointed out that most of the existing discharge ports, whether it is the type of discharge port 1 or the type of discharge port 2, are used for clamping the opposite sides of the straight steps 12, 22 (ie hexagonal or square parallel sides). Basically consistent, this allows them to be considered to share a venting clip.

3-6 illustrate the structure of a first embodiment of a vent anchor clip in accordance with the present invention. As shown in Figs. 3 and 4, the discharge port fixing clip 3 is composed of a turntable 31, a chassis 32, and a locking claw 33. The center of the turntable 31 is provided with a central through hole 310 through which the discharge opening passes. The outer ring of the turntable 31 has a 4-segment flange 312 enclosing a substantially circular shape. On the bottom surface of the turntable 31, there are four contour-shaped grooves 313, 4 The grooves 313 are equally arranged at intervals of 90 degrees along the circumference of the center, and the contours of the grooves 313 are formed. The point along the length direction is gradually moved away from the center of the turntable 31, and both the head and the tail of each groove 313 have a gentle contour. Further, on the side opposite to the flange 312 of the turntable 31, there is a projecting portion 31 1 which is convenient for people to grasp.

Fig. 5 shows the construction of the chassis 32. As shown in FIG. 5, the center of the chassis 32 is provided with a central through hole 320 through which the discharge opening passes. One side of the chassis 32 is provided with two elastic buckles 321 for fastening the entire discharge opening clamp 3 On the container (not shown). A ring flange 322 is formed on the chassis 32, and the outer side of the flange 322 also has four elastic buckles 324 for engaging the chassis 32 to the turntable 31. Between the central through hole 320 and the flange 322, four radial chutes 323 are provided, and the four chutes 323 are equally arranged at intervals of 90 degrees around the center of the chassis.

Fig. 6 shows the configuration of the locking claws 33. As shown in Fig. 6, each side of the main body of the locking claw 33 has a slide rail 334 that cooperates with the sliding groove 323. A pin 333 is provided on the upper surface of the locking claw 33, and the pin 333 is adapted to cooperate with the groove 313 on the turntable 31 such that when the turntable 31 is rotated, the locking claw 33 can slide along the chute 323 toward the center of the chassis or away from the center of the chassis , thereby locking or unlocking the drain. A locking plane is provided on the front side of the locking pawl 33. A locking recess 332 is recessed in the middle of the locking plane 331 to facilitate engagement with discharge ports of various shapes and sizes.

7-8 are schematic views showing the state of use of the first embodiment of the discharge port fixing clip of the present invention. As shown in Figures 7 and 8, the discharge port retaining clips 3 can respectively lock the hexagonal straight step 12 and the square straight step 22 shaped discharge ports. As shown in Fig. 7-8, after the turntable 31 is placed on the chassis 32, the elastic buckle 324 extends out of the outer edge of the chassis 32 to prevent the turntable 31 from being easily detached, and the purpose is to allow the turntable 31 to rotate relative to the chassis 32 about its center. Four locking claws 33 are fitted in the chutes 323 of the chassis 32, respectively. At this time, the pin 333 on the locking claw 33 will protrude into the recess 313 of the turntable 31, thus forming a simple cam mechanism, and when the turntable 31 is rotated, the locking claw 33 can be made along the chute 323. Move in a straight line. Both the head and the tail of the groove 313 have a gentle contour, which can prevent the pin 333 of the locking claw 33 from being easily moved when in these positions, thereby ensuring that the locking plane 331 can be kept close to the locked state. The hexagonal straight step 12 or the square straight step 22 achieves the locking of the discharge opening.

Wherein, for the locking of the discharge opening having the hexagonal straight step 12, as shown in Fig. 7, the locking groove 332 is designed to be sized to accommodate the upper and lower corners thereof. Thus, both the discharge port 1 and the discharge port 2 can be fixed by the discharge port fixing clip 3, and the discharge port is moved upward when the lock is required to be unlocked. In addition, when the turntable 31 is rotated in the counterclockwise direction, the groove 313 will drive the pin 333 to move outward, so that the space enclosed by the locking claw 33 is enlarged, and the discharge port 1 and the discharge port 2 can be easily removed.

Figure 9 is an exploded perspective view showing a second embodiment of the discharge port fixing clip according to the present invention. As shown in Fig. 9, the structure of the first embodiment is different mainly in that, in the present embodiment, the movable locking claw 33 is changed into a rotatable locking claw 45. Similarly, in the present embodiment, a simple cam mechanism is formed by the through groove 431 on the dial 43 and the pin 451 on the locking pawl 45 to control the rotation of the locking pawl 45, thereby achieving clamping or loosening of the discharge opening.

Specifically, the discharge port fixing clip 4 is composed of a screw 41, a cover 42, a turntable 43, a locking claw 45, and a chassis 44. The metal cover 42 material is preferably a steel sheet having a through hole 421 through the screw 41 and a positioning hole 422 for mating with the boss 442 on the chassis 44. The turntable 43 has four through grooves 431 equally distributed along the center 90 degrees, and each of the through grooves 431 has a slope 432 at the end. Further, similarly, at the edge of the center hole 434 of the turntable 43, there is also a projection 435 which is convenient for people to grasp.

The locking claw 45 has a rotation center hole 454 at one end and a locking plane 452 at the other end, and a locking groove 453 at the center of the locking plane 452. There is also a pin 451 for engaging the through groove 431 in the middle of the locking claw 45. Each of the four corners of the chassis 44 has a rotating center pin 441, and each of the locking claws 45 is rotatable about the center pin 441 over a range of angles. As shown in FIG. 10, when the turntable 43 is rotated clockwise, the through groove 431 rotates the guiding lock claw 45 clockwise so that the locking plane 452 can approach the straight portion of the discharge port and continue to rotate the turntable 43 so that the lock claw 45 is The pin 451 passes over the slope 432 at the end of the slot 421, which will protect the locking pawl 45 from being easily removed from the end of the slot 431 when subjected to a force against the lock. As with the first embodiment, for the locking of the hexagonal straight step 12, the locking groove 453 is designed to accommodate the upper and lower corners thereof.

Need to release the vent fixing clip 4 When locking the vent, turn the turntable counterclockwise 43, so that the guide groove 431 guide pin 451 rotates counterclockwise around the center hole 454. Thus, the space enclosed by the locking planes 452 of the four locking claws 45 is enlarged, and the discharge port 1 and the discharge port 2 can be easily removed.

1 to 17 show a schematic structural view of a third embodiment of a discharge port fixing clip according to the present invention. As shown in FIG. 11, the discharge port fixing clip 5 includes a cover 51, a front cover 52, a rear cover 57, and a turn The disc 53, the chassis 54, the locking pawl 55, the transmission gear 56 and the positioning ring 58 are formed. The turntable 53 and the positioning ring 58 are formed as a single piece. The outer circumference of the turntable is provided with two spaced apart driving teeth 530. The turntable 53 and the transmission gear 56 form a gear-gear transmission relationship, and the transmission gear 56 and the locking claw 55 form a gear. The transmission relationship of a rack. The turntable 53, the chassis 54, the lock pawl 55, and the transmission gear 56 are assembled between the front cover 52 and the rear cover 57, and the front cover 52 and the rear cover 57 are screwed.

As shown in Figs. 1 to 12-12, the cover 51 is a torus having a recess 51 1 , a slit 512 , and a slit 513 on the inner wall thereof. The recess 51 1 is for engaging with the rib 533 on the turntable 53, so that when the cover 51 is rotated, the turntable 53 can be rotated. The slit 512 and the slit 513 are for engaging with the elastic buckle 534 on the turntable 53, so that the cover can be mounted to the turntable 53 and can be rotated by a certain angle with respect to the turntable 53. The front cover 51 is provided with a central through hole 520. The inner wall of the central through hole 520 is provided with four positioning teeth 522 which are evenly distributed along the circumference. The locking claw 55 is a substantially U-shaped member, and the two arms of the U-shape are provided with a rack 551. The transmission gear 56 includes a gear 561 and a gear 562. The center of the chassis 54 is provided with a center through hole 541, and on both opposite sides, a recess 542 for mounting the locking claw 55 and a hole 543 for mounting the transmission gear 56 are provided.

After the assembly is completed, as shown in Fig. 17, when the cover 51 is rotated counterclockwise, the recess 51 1 will drive the rib 533 on the turntable 53, and then pass through the transmission mechanism constituted by the turntable 53, the transmission gear 56 and the locking claw 55. The space formed by the two locking claws 55 becomes small, so that it can fix the discharge port 1 or the discharge port 2. At this time, the positioning ring 58 is pivoted with the positioning boss 531 - the side and the other side along the contour of the positioning tooth 522, and the elastic piece 532 causes the side to always go to the outer position. Thus, when the turntable 53 is rotated to an angle at which the discharge opening 1 or the discharge opening 2 is locked, the positioning ring 58 is positioned in a certain positioning tooth 522, and the turntable 53 does not rotate clockwise due to the reaction force of the locking claw 55. Thereby, the discharge port 1 or the discharge port 2 or other shaped discharge port is locked.

When unlocking, the cover 51 is rotated clockwise. At this time, the recess 51 1 swings the pressing positioning ring 58 inwardly, so that it is disengaged from the positioning tooth 522, so that the turntable 53 can also rotate clockwise and then pass through the transmission. The mechanism enlarges the space formed by the two locking claws 45, and the discharge port 1 and the discharge port 2 can be easily removed.

18-21 are structural views showing a fourth embodiment of a discharge port fixing clip according to the present invention. As shown in FIG. 18, the discharge port fixing clip 6 is composed of a front cover 61, a rear cover 66, a turntable 62, and a chassis. 63. The locking claw 65, the transmission gear 64 and the self-tapping screw 67 are composed. The turntable 62 is provided with a central hole 620. The edge of the central hole 620 also has a protruding portion 622 for facilitating the operation. The outer side of the turntable is a helical tooth 621. The helical tooth 621 and the helical tooth 642 of the transmission gear 64 cooperate to form a gear. Gear transmission relationship. Both ends of the transmission gear 64 are a right helical gear 641 and a left helical gear 643, respectively. The locking claws 65 also have helical racks 651 and 652 on both sides thereof, and the helical racks 651 and 652 cooperate with the right helical gear 641 and the left helical gear 643, respectively, to form a spiral-rack transmission relationship. A groove 631 for accommodating the transmission gear 64 is provided in the chassis 63.

When assembled, the turntable 62, the chassis 63, the locking pawl 65, and the transmission gear 64 are assembled between the front cover 61 and the rear cover 66, and the front cover 61 and the rear cover 66 are joined together by a tapping screw 67. After the assembly is completed, when the turntable 62 is rotated, the two locking claws 65 move together inward or outward by the action of the above-described transmission mechanism composed of the turntable 62, the transmission gear 64 and the locking pawl, so that the discharge port can be locked or unlocked. 1 or discharge port 2 or other shaped discharge port. Moreover, since the locking pawl 65 and the transmission gear 64 form a spiral-rack mechanism relationship, the rotation of the locking pawl 62 in the reverse direction is not caused when the locking pawl 65 is subjected to the reaction force.

It should be noted that, although not shown, in the conventional large tote for transporting bulk liquid, the wall of the hole for accommodating the opening of the discharge port on the side below the container generally has a square groove. Therefore, the discharge port fixing clips 4, 5, 6 are sized to match the square grooves in the opening, thereby enabling the discharge port fixing clip to be fixed in the container.

The vent fixing clip of the present invention can be pre-mounted on the container, and the shape of the locking claw in the fixing clip is adapted to a plurality of existing vent shapes and the space formed (enclosed) can be adjusted, thereby being clamped Discharge ports of different shapes and sizes, and can be reused and dispensed with recycling operations, making operation easier.

The preferred embodiments of the present invention have been described in detail hereinabove, and it is understood that various modifications and changes may be made by those skilled in the art. These equivalent forms are also within the scope defined by the claims appended hereto.

Claims

Rights request

A vent fixing clip, characterized in that: the vent fixing clip includes a turntable, a plurality of locking claws, and a chassis, and a transmission mechanism is disposed between the turntable and the locking claw, so that the rotating When the turntable is turned, the plurality of locking claws can be changed by the transmission mechanism to change the size of the space enclosed thereby, thereby locking or unlocking the discharge opening.

2. The vent fixing clip according to claim 1, wherein: the discharge port comprises a flange, a discharge passage, and a hexagonal straight or square straight step, and the discharge port fixing clip is used for clamping Live or loosen the hexagonal straight and square straight steps to lock or unlock the drain.

3. The vent fixing clip according to claim 1, wherein:

4. The vent fixing clip according to claim 3, wherein: the chassis is further provided with a resilient buckle for fixing the chassis to the container.

5. The vent fixing clip according to claim 1, wherein:

The center of the turntable is provided with a central through hole through which the discharge opening passes. On the bottom surface of the turntable, there are four contoured through grooves, and the through grooves are equally arranged at intervals of 90 degrees along the circumference of the center of the turntable. There is also a protrusion on one side of the turntable for easy operation by the operator;

The chassis is provided with a central through hole through which the discharge opening passes, and the four corners of the chassis Each having a rotating center pin, each locking pawl being rotatable about the center pin over a range of angles;

6. The vent fixing clip according to claim 1, wherein:

7. The vent fixing clip according to claim 6, wherein: the locking claw is a U-shaped member, and the two arms of the U-shape are provided with a rack; the transmission gear includes a driving tooth and The two gears that the rack engages.

8. The vent fixing clip according to claim 1, wherein:

The vent fixing clip further has a front cover, a rear cover, and two transmission gears; the center of the turntable is provided with a central through hole through which the discharge opening passes, and has a convenient on one side of the turntable The operator holds the extended portion of the operation, and the outer circumference of the turntable is provided with driving teeth for meshing with the two transmission gears;

The chassis is provided with grooves for respectively positioning the two transmission gears;

The number of the locking claws is two, and a rack that meshes with the transmission gear is disposed thereon, such that when the rotary table is rotated, the driving teeth mesh with the transmission gear and the transmission gear and the transmission The engagement of the locking claws causes the locking claws to move to change the size of the space enclosed by the locking claws, thereby locking or unlocking the discharge opening.

9. The vent fixing clip according to claim 8, wherein: the transmission gear is composed of a helical tooth located at a middle portion and a right helical gear and a left helical gear at both ends, the helical tooth and the turntable The drive teeth are engaged, and the right helical gear and the left helical gear are respectively engaged with the racks on the two locking claws.

10. A container for containing a liquid-filled liner bag, the liner bag being provided with a discharge opening, and a side of the lower portion of the container is provided with a hole, when the liner bag is placed in the The discharge port is aligned with the hole in the container, and the discharge port fixing clip according to any one of claims 1 to 9 is installed in the hole.