Water storage bag, water replenishing device of water storage bag and self-service water vending machine

Abstract

The invention discloses a water storage bag, a water storage bag water replenishing device and a self-service water vending machine, and belongs to the field of vending machines. Comprising a bag body and a bag opening, a water storage cavity for storing water is formed in the bag body; the bag opening is located at the outer end of the bag body and is an inlet-outlet of the water storage cavity; an infusion switch is arranged in the bag opening, the infusion switch is closed in a normal state, the opening of the infusion switch has a pressure threshold value, and when the pressure of the outside to the bag opening reaches the set threshold value, the bag opening is opened; the infusion switch comprises a return part made of an elastic material, so that the infusion switch is kept normally closed; the purpose that a user does not need to carry a container when purchasing water can be achieved.

Description

Technical Field

[0001] The present invention belongs to the field of vending machines, and more specifically, relates to a water storage bag, a water storage bag water replenishing device, and a self-service water vending machine. Background Art

[0002] Existing self-service water vending machines require users to bring their own containers (usually buckets) to receive purified water, and the self-service water vending machines only sell purified water. Although this allows the water storage containers to be recycled and ensures environmental performance, it also increases the difficulty of user use and forces users to use the premise of the self-service water vending machine, which makes sales flexibility too poor. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a water storage bag, a water storage bag water replenishing device, and a self-service water vending machine, which can achieve the purpose of users not having to bring their own containers when purchasing water.

[0004] A water storage bag of the present invention comprises a bag body and a bag opening; a water storage cavity for storing water is arranged inside the bag body; the bag opening is located at the outer end of the bag body and is the entrance and exit of the water storage cavity; an infusion switch is arranged inside the bag opening, the infusion switch is in a closed state under normal conditions, and the opening of the infusion switch has a pressure threshold, and when the external pressure on the bag opening reaches the set threshold, the bag opening is in an open state; the infusion switch comprises a return component made of elastic material to keep the infusion switch normally closed.

[0005] As a further improvement of the present invention, the infusion switch includes a bottle cap and an elastic membrane; the bottle cap is connected to the bag opening; the elastic membrane normally closes the bottle cap opening, and when the pressure of the external force on the elastic membrane reaches a set threshold, the elastic membrane cracks to form a water filling port; the elastic membrane is a return component, and the water filling port has the ability to close automatically.

[0006] As a further improvement of the present invention, the infusion switch includes a bottle cap and an elastic membrane; the bottle cap is connected to the bag opening; the elastic membrane is provided with a water replenishment channel which is closed under normal conditions, and when the pressure of the external force on the elastic membrane reaches a set threshold, the water replenishment channel is pressurized to remain open; the elastic membrane is a return component, and the water replenishment channel has the ability to close automatically.

[0007] As a further improvement of the present invention, a positioning slide groove is provided on the outer periphery of the bag opening, and the positioning slide groove is engaged and matched with an external fixing piece to limit the position.

[0008] A water storage bag water replenishing device, used for replenishing water in a water storage bag according to any one of claims 1 to 4; the water replenishing device comprises an infusion guide unit and an infusion drive unit; The infusion guide unit is located above the positioning unit, and the infusion guide unit is connected to an external water source through an infusion tube to replenish water to the water storage bag; The infusion driving unit is connected to the infusion guiding unit to drive the infusion guiding unit to move toward the water storage bag to be replenished; when the infusion guiding unit is located at or moved to the upper side of the water storage bag, the moving stroke of the infusion guiding unit is at least greater than the distance between it and the bag opening of the water storage bag, so that when draining water, the output end of the infusion guiding unit is located in the water storage bag; The water replenishing device is used in conjunction with an external positioning unit; the positioning unit has a limiting groove surrounded by a thin wall; the thin wall is fitted and matched with a positioning slide groove provided on the outer periphery of the bag opening; the outer diameter of the bag opening is larger than the diameter of the limiting groove, so that the bag opening can be slidably limited and embedded in the limiting groove during installation.

[0009] A self-service water vending machine, used for selling water storage bags filled with water; the self-service water vending machine comprises frame; The turntable unit is located inside the frame and has the ability to rotate by itself. It also has a number of limiting grooves to clamp the water storage bag. The water storage bag water replenishing device is installed on the frame and is located outside at least one corresponding limiting groove, and has the ability to move toward the water storage bag clamped on the limiting groove; A pushing unit is located inside the frame and is arranged outside the limiting groove where the water replenishing device is located. The output end of the pushing unit has the ability to move toward the water storage bag in the limiting groove to drive the water storage bag to move out of the limiting groove to drop the material; and The control detection unit is electrically connected with the turntable unit and the material pushing unit to obtain the rotation information of the turntable unit and output a start / stop signal to the material pushing unit.

[0010] As a further improvement of the present invention, the turntable unit includes a turntable and a turntable drive assembly; The edge of the turntable is provided with a number of evenly distributed limiting grooves; the outer side of each limiting groove is provided with a corresponding material dropping channel; The turntable driving assembly comprises a rotating motor fixedly mounted inside the frame, and an output end of the rotating motor is directly or indirectly connected to the turntable to drive the turntable to rotate.

[0011] As a further improvement of the present invention, the turntable drive assembly also includes a pinion, a large gear, a bearing seat and a center tube; the pinion is connected to the output end of the rotating motor; the large gear is meshed and connected with the pinion and is sleeved on the outer periphery of the center tube; the turntable is sleeved on the outer periphery of the bearing seat; the outer periphery of the center tube is sleeved with bearings, and the bearing seat is sleeved and installed on the outer periphery of the center tube and is used to install the bearings; the large gear, turntable and bearing seat are axially locked together by screws; the center tube is fixedly installed on the frame.

[0012] As a further improvement of the present invention, the pushing unit is located on the inner side of the upper end of the limiting groove where the water replenishing device is located; the pushing unit includes a pushing motor and a pushing block; the pushing block is connected to the output end of the pushing motor so as to have the ability to abut against the bag opening of the water storage bag and horizontally drive the water storage bag to move toward and away from the limiting groove.

[0013] As a further improvement of the present invention, a feeding guide cover is fixedly arranged on the outer periphery of at least one limiting groove; a feeding channel for moving the bag mouth of the water storage bag is opened inside the feeding guide cover; a feeding guide plate matching the positioning slide groove is fixedly arranged in the feeding channel; the limiting groove where the feeding guide cover is located is not the limiting groove corresponding to the water replenishing device.

[0014] As a further improvement of the present invention, a guide cover support plate is extended from the lower end of the feed guide cover toward the center side of the turntable unit, and the guide cover support plate is located at the lower end of the turntable unit to support the limit turntable unit.

[0015] As a further improvement of the present invention, the frame includes a load-bearing beam and a plurality of columns; the plurality of columns constitute a frame body; the load-bearing beam is fixedly arranged between the columns, and the turntable unit is installed at the lower end of the load-bearing beam.

[0016] As a further improvement of the present invention, a load-bearing hook plate is provided at the lower end of the load-bearing beam; the lower end of the load-bearing hook plate is located at the lower end surface of the turntable unit to support the turntable unit after water filling. As a further improvement of the present invention, protrusions are fixedly provided at both ends of the opening side of the limiting groove, and the distance between the two corresponding matching protrusions is larger than the opening of the limiting groove to form a blanking channel; the lower end of the load-bearing hook plate is located at the lower end of the protrusion.

[0017] As a further improvement of the present invention, a limit cover shell is provided on the upper side cover of the turntable unit, and the outer edge of the limit cover shell is a limit shell wall extending downward; the limit shell wall is located outside the empty limit groove; the limit shell wall is provided with an opening to connect to the limit groove where the water replenishing device is located.

[0018] As a further improvement of the present invention, the control detection unit includes a control module and a detection module; the detection module includes a material detection probe and / or a push material limit switch; The material detection probe is located on the upper side of the preceding limiting groove of the limiting groove where the water replenishing device is located, so as to obtain the material clamping information of the limiting groove; the control module is connected to the material detection probe to obtain the material clamping information; The pusher limit switch is located outside the limit groove where the water replenishing device is located to obtain the return information of the output end of the pusher unit; the pusher limit switch is connected to the driving component of the pusher unit to control the operation of the driving component of the pusher unit according to the position information of the water storage bag.

[0019] As a further improvement of the present invention, the control detection unit includes a control module and a sensing switch; the turntable is provided with a sensing hole on the inner side of the limit groove; the sensing switch is located on the upper side of the corresponding sensing hole in the limit groove for filling materials; the sensing range of the sensing switch is less than or equal to the diameter of the sensing hole; the control module is connected to the sensing switch to obtain the rotation angle information of the turntable; the control module is connected to the rotating motor to control the operation of the rotating motor according to the rotation angle information.

[0020] As a further improvement of the present invention, a limit cover is provided on the upper side cover of the turntable unit; a limit hole is provided on the upper end of the limit cover; The control detection unit comprises a positioning electromagnet; the positioning electromagnet is fixedly arranged inside the frame; the output end of the positioning electromagnet is matched with the limiting small hole to be plugged and fixed with the limiting cover shell as a whole during operation.

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. By adding an elastic membrane or duckbill valve or other infusion switch to the bottle cap of a conventional water storage bag, the water storage bag itself is matched with a water replenishment device, and the water storage bag is filled with purified water in the water vending machine, so that the water storage bag can still be used normally after filling. For self-service water vending machines, the water storage bag is small in size and can accommodate more empty water storage bags, ensuring that the number of water sales increases, reducing the number of times maintenance personnel need to refill materials, and also making it convenient for users, who no longer need to carry buckets to buy water.

[0022] 2. By setting a turntable unit in the water vending machine, each time water needs to be sold, the empty water storage bag is rotated to the lower side of the water replenishing device for automatic filling; this setting has high filling accuracy and low construction cost, which is conducive to industrial manufacturing and commercial promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the water storage bag of the present invention; Figure 2 It is a structural schematic diagram of the bag opening of the water storage bag of the present invention; Figure 3 It is a schematic diagram of the appearance structure of the self-service water vending machine of the present invention; Figure 4 It is a schematic diagram of the internal structure of the self-service water vending machine of the present invention; Figure 5 It is a schematic diagram of the appearance structure of the turntable unit of the present invention; Figure 6 It is a schematic diagram of the internal structure of the turntable unit of the present invention; Figure 7 It is a structural schematic diagram of the water replenishing device of the present invention; Figure 8 It is a structural schematic diagram of the turntable drive assembly of the present invention; Fig. 9 is an enlarged schematic diagram of the turntable drive assembly of the present invention; Fig.10 It is a structural schematic diagram of the positioning electromagnet of the present invention; Fig.11 It is a structural schematic diagram of the turntable feeding place of the present invention.

[0024] Description of the numbers in the figure: Frame 1, column 11, side plate 12, top plate 13, bottom plate 14, outlet 141, load-bearing beam 15, load-bearing hook plate 16; Water storage bag 2, positioning chute 21; Rotating disc 31, limiting groove 311, material dropping channel 312, sensing hole 313; Filling puncture head 41, feeding motor 42; Push block 51; Positioning electromagnet 61; Material detection probe 71; Limiting cover 81; Feeding guide cover 91, induction switch 92; Small gear 101 , large gear 102 , rotating motor 103 , bearing seat 104 . DETAILED DESCRIPTION

[0025] A water storage bag, see Figure 1-Figure 2 , including a bag body and a bag opening. A water storage cavity for storing water is provided inside the bag body; the bag opening is located at the outer end of the bag body and is the entrance and exit of the water storage cavity; an infusion switch is provided inside the bag opening, and the infusion switch is closed under normal conditions. The opening of the infusion switch has a pressure threshold, and when the external pressure on the bag opening reaches the set threshold, the bag opening is open; the infusion switch is connected to an elastic element that provides elastic return force for the switch, so that the infusion switch has the ability to remain closed.

[0026] Specifically, the infusion switch can be a bottle cap and an elastic membrane. The bottle cap is threadedly connected to the bag opening; the surface of the bottle cap body is provided with a through hole, and the elastic membrane closes the through hole of the bottle cap under normal conditions. When the pressure of the elastic membrane by the external force reaches a set threshold, the elastic membrane cracks to form a water filling port. The elastic membrane is made of elastic material, and the water filling port has the ability to close automatically. When the filling head is pierced through the elastic membrane, the elastic membrane cracks, and when the filling head enters, the elastic membrane tightly wraps the filling head due to elastic force to prevent leakage. After the filling head is pulled out, the elastic force of the elastic membrane will close the water filling port again, playing a certain sealing role.

[0027] Specifically, in addition to the design of the elastic membrane, the infusion switch can also be designed with a bottle cap and an elastic duckbill valve. The elastic duckbill valve is set at the through hole of the bottle cap to form a normally closed water replenishment channel. When the pressure of the external force on the duckbill valve reaches the set threshold, the water replenishment channel is pressurized and remains open; the elastic membrane is made of elastic material, and the water replenishment channel has the ability to close automatically. For example, when a filling head is used for water replenishment, the filling head is inserted into the duckbill valve for water replenishment. After the filling head is pulled out, the duckbill valve can automatically recover to achieve a one-way seal.

[0028] Specifically, a positioning groove 21 is provided on the outer periphery of the bag opening, and the positioning groove 21 is matched with the external fixing part to ensure that the water storage bag 2 can be stably placed when replenishing water.

[0029] A water storage bag water replenishment device, please refer to Figure 3-Figure 11 , used for replenishing water in the water storage bag 2; the water replenishing device includes a filling puncture head 41 and a replenishing motor 42.

[0030] The water replenishing device is used in conjunction with an external positioning unit; the positioning unit has a limiting groove 311 surrounded by a thin wall. Specifically, the positioning unit can be a metal sheet, and a limiting groove 311 is provided on the outer edge of the sheet. The limiting groove 311 is used to embed the bag opening of the water storage bag 2, and a positioning slide 21 that matches the thin wall is provided on the outer periphery of the bag opening. The positioning slide 21 can be slidably connected with the metal sheet to achieve the insertion of the water storage bag 2 while also achieving vertical limitation.

[0031] The feeding motor 42 is fixedly arranged above the limiting groove 311. The filling puncture head 41 is connected to the output end of the feeding motor 42. The filling puncture head 41 is connected to the external water source through a hose. The lower end of the filling puncture head 41 can be a pointed tip, which is convenient for passing through the infusion switch of the water storage bag 2. The feeding motor 42 can drive the filling puncture head 41 to reciprocate in the vertical direction. During operation, the filling puncture head 41 can be inserted downward into the infusion switch of the water storage bag 2 to deliver water.

[0032] The water replenishing device can be an intermediate module of the following self-service water vending machine, or it can be used as a water vending machine alone. The user puts the empty water storage bag 2 into the limiting groove 311, the replenishing motor 42 starts to descend, the filling piercing head 41 is filled with water, the replenishing motor 42 starts to return to its original position, and the user removes the water storage bag 2 to complete the water vending.

[0033] Preferably, a protrusion is fixedly provided at the outer edge of the metal sheet outside the limiting groove 311, and the distance between the two corresponding matching protrusions is larger than the opening of the limiting groove 311 to form a larger blanking channel 312. The diameter of the blanking channel 312 is larger than the outer diameter of the bag opening to facilitate blanking.

[0034] In addition, another structure can be set, the difference is that the limit groove 311 is not directly set on the lower side of the feeding motor 42 and the filling piercing head 41. The metal sheet can be set to be movable, or the feeding motor 42 and the filling piercing head 41 can be set to be movable as a whole, and the water filling is started only when the limit groove 311 and the filling piercing head 41 move to the corresponding position. The advantage of this setting is that the water source and the filling equipment can be hidden in a shell, reducing the pollution of the water source and avoiding damage to the filling equipment.

[0035] A self-service water vending machine, see Figure 3-Figure 11 , used for selling water storage bags 2 filled with water; the self-service water vending machine includes a frame 1, a turntable unit, a water storage bag water replenishing device, a pushing unit and a control and detection unit.

[0036] The frame 1 includes a plurality of columns 11 , side panels 12 , a top panel 13 , a bottom panel 14 and load-bearing beams 15 .

[0037] In this embodiment, there are 12 columns 11 to form a square frame. The side panels 12 cover the sides of the frame and have openings for refilling and / or maintenance of the self-service water vending machine. The top panel 13 covers the top surface of the frame. The bottom panel 14 covers the bottom surface of the frame and has an outlet 141 for the water storage bag to discharge. The load-bearing beam 15 is fixedly arranged on the upper side of the top panel for installing the turntable unit. At the same time, both ends of the load-bearing beam 15 are located on the upper side of the vertical columns. The advantage of this is that the number of columns 11 supported by the load-bearing beam 15 is increased to prevent the frame 1 from being crushed.

[0038] The turntable unit is located inside the frame 1 and has the ability to rotate by itself. It also has a number of limiting grooves 311 for clamping the water storage bag. The turntable unit includes a turntable 31 and a turntable drive assembly. The edge of the turntable 31 is provided with a number of evenly distributed limiting grooves 311; the outer side of each limiting groove 311 is provided with a corresponding material drop channel 312.

[0039] The turntable drive assembly includes a pinion 101, a large gear 102, a rotating motor 103, a bearing seat 104 and a central tube. The rotating motor 103 is fixedly mounted on the motor mounting plate inside the frame 1. The motor mounting plate is connected to the central tube, and the upper end of the central tube passes through the top plate 13 and is fixedly connected to the load-bearing beam 15 through a flange. The pinion 101 is connected to the output end of the rotating motor 103; the large gear 102 is meshed and connected with the pinion 101 and sleeved on the outer periphery of the central tube; the turntable 31 is sleeved on the outer periphery of the bearing seat 104; the outer periphery of the central tube is sleeved with bearings, and the bearing seat 104 is sleeved and installed on the outer periphery of the central tube and used to install bearings; the large gear 102, the turntable 31, and the bearing seat 104 are axially locked as a whole by screws; the lower end of the central tube supports the large gear 102, the turntable 31 and the bearing seat 104 that are locked as a whole. The rotating motor 103 is connected to the turntable 31 through a gear set to drive the turntable 31 to rotate. The gear set is not limited to the small gear 101 and the large gear 102. If there is a need for speed reduction, the number of gears can be increased.

[0040] The water bag water replenishing device is installed on the frame 1 and is located on the upper side of at least one corresponding limiting groove 311, and has the ability to move toward the water bag 2 clamped on the limiting groove 311. In the self-service water vending machine of this embodiment, the metal sheet is the turntable 31, the replenishing motor 42 is fixedly installed on the load-bearing beam 15, and the output end of the replenishing motor 42 passes through the frame 1 and is located on the upper side of the limiting groove 311 for filling. For other structures, refer to the description of the water replenishing device above.

[0041] The pusher unit is located on the inner side of the upper end of the limiting groove 311 for filling. The pusher unit includes a pusher motor and a pusher block 51. The pusher motor is fixedly mounted on the motor mounting plate, and the pusher block 51 is connected to the output end of the pusher motor so as to have the ability to abut against the bag opening of the water storage bag 2 and horizontally drive the water storage bag 2 to move away from the limiting groove 311. Of course, the pusher block 51 can also be replaced with a cam, and the pusher motor can be replaced with a rotating motor accordingly, so as to achieve the above technical effects.

[0042] A feeding station is arranged on the periphery of the turntable 31, and a feeding guide cover 91 is fixedly arranged on the periphery of the limiting groove 311 of the station, and the feeding guide cover 91 is fixedly connected to the motor mounting plate. A feeding channel for the bag mouth of the water storage bag 2 to move is provided inside the feeding guide cover 91; a feeding guide plate matching the positioning slide 21 is fixedly arranged inside the feeding channel; the limiting groove 311 where the feeding guide cover 91 is located is not the limiting groove 311 corresponding to the water replenishing device. A guide cover support plate is extended from the lower end of the feeding guide cover 91 toward the center side of the turntable 311 to support the turntable 311. Since the turntable 311 is large in size and prone to unevenness, a guide cover support plate is arranged so that the limiting groove 311 can always correspond to the feeding channel and no misalignment occurs. The side panel 12 is also provided with a feeding channel at the corresponding position, so that the maintenance personnel can control the feeding of the water storage bag 2 through this position. The operator only needs to insert the bag mouth of the water storage bag 2 into the feeding guide cover 91 and press it to the bottom to complete the feeding. After the turntable 31 rotates a certain angle, the next limiting groove 311 can be fed.

[0043] In addition, a load-bearing hook plate 16 is provided at the lower end of the load-bearing beam 15; the lower end of the load-bearing hook plate 16 is located at the lower end surface of the rotating disk 311 to support the rotating disk 311. The lower end of the load-bearing hook plate 16 is located at the lower end of the protrusion constituting the material dropping channel 312. Because the water storage bag 2 is filled with water and has a large weight, the rotating disk 311 is easy to deform. The load-bearing hook plate 16 supports the rotating disk 311 to prevent deformation and damage.

[0044] The control detection unit is connected with the turntable unit and the material pushing unit to obtain the rotation information of the turntable unit and output a start and stop signal to the material pushing unit.

[0045] Preferably, the control and detection unit includes a control module and a material detection probe 71; the material detection probe 71 is located on the upper side of the preceding limiting groove 311 of the limiting groove 311 where the water replenishing device is located, so as to obtain the material clamping information of the limiting groove 311; the control module and the material detection probe 71 are connected to obtain the material clamping information.

[0046] Preferably, the control detection unit includes a pushing limit switch; the pushing limit switch is located on the outside of the limit groove 311 where the water replenishing device is located to obtain the position information of the water storage bag in the limit groove 311; the pushing limit switch is connected to the driving component of the pushing unit to control the operation of the driving component of the pushing unit according to the position information of the water storage bag.

[0047] Preferably, the control detection unit includes a control module and a sensing switch 92; the rotating disk 31 is provided with a sensing hole 313 on the inner side of the limiting groove 311; the sensing switch 92 is located on the upper side of the sensing hole 313 corresponding to the limiting groove 311 for filling; the sensing range of the sensing switch 92 is less than or equal to the diameter of the sensing hole 313; the control module is connected to the sensing switch 92 to obtain the rotation angle information of the rotating disk 31; the control module is connected to the rotating motor 103 to control the operation of the rotating motor 103 according to the rotation angle information. It is ensured that the limiting grooves 311 can be rotated to the set position, and the accuracy and convenience of the filling and filling operations are improved.

[0048] Preferably, a limit cover shell 81 is provided on the upper side cover of the turntable unit; a limit hole is provided on the upper end of the limit cover shell 81; the control detection unit includes a positioning electromagnet 61; the positioning electromagnet is fixedly arranged inside the frame 1; the output end of the positioning electromagnet 61 corresponds to and matches the limit hole, so as to be plugged and fixed as a whole with the limit cover shell 81 during operation. In addition, the outer edge of the limit cover shell 81 is a limit shell wall extending downward; the limit shell wall is located outside the limit groove 311 of the empty position, and the empty position refers to the limit groove 311 that does not need to be replenished with water or material. The limit shell wall is provided with an opening to connect the limit groove 311 where the water replenishment device is located, and also connect the limit groove 311 where the material replenishment guide cover 91 is located, which will not hinder the removal of the water storage bag 2 after water replenishment, nor hinder the removal of the water storage bag 2 during material replenishment.

[0049] Working principle: An empty water bag 2 is clamped in each limiting groove 311 of the turntable 31. When a consumer needs to buy water, the water bag 2 located at the lower side of the filling piercing head 41 is used as the water bag 2 to be filled, or the filling piercing head 41 located in the previous sequence of the filling piercing head 41 on the turntable 31 is used. The difference is that the latter requires the turntable 31 to move, and after the material detection probe 71 determines that the water bag 2 is transported to the lower side of the filling piercing head 41, the feeding motor 42 is started, and the filling piercing head 41 descends to fill water. After the filling is completed, the filling piercing head 41 returns to its original position, the push block motor is started, and the push block 51 moves to push the filled water bag 2 to the blanking channel 312. After the water bag 2 enters the blanking channel 312, it loses its limit and falls down and is discharged through the outlet 141, and the consumer completes the consumption.

[0050] Afterwards, when a consumer buys water again, the turntable 31 moves the set angle to ensure repeated water sales.

[0051] Until all the empty water storage bags 2 on the turntable 31 are used up, the maintenance personnel can insert new empty water storage bags 2 into the filling guide cover 9 through the filling port, and fill the limiting groove 311 with material in coordination with the rotation of the turntable 31.

Claims

1. A water storage bag, characterized in that: It includes a bag body and a bag opening; a water storage cavity for storing water is provided inside the bag body; the bag opening is located at the outer end of the bag body and is the entrance and exit of the water storage cavity; an infusion switch is provided inside the bag opening, the infusion switch is closed under normal conditions, and the opening of the infusion switch has a pressure threshold, when the external pressure on the bag opening reaches the set threshold, the bag opening is open; the infusion switch includes a return component made of elastic material to keep the infusion switch normally closed.

2. A water storage bag according to claim 1, characterized in that: The infusion switch includes a bottle cap and an elastic membrane; the bottle cap is connected to the bag opening; the elastic membrane closes the bottle cap opening under normal conditions, and when the pressure of the external force on the elastic membrane reaches a set threshold, the elastic membrane cracks to form a water filling port; the elastic membrane is a return component, and the water filling port has the ability to close automatically.

3. A water storage bag according to claim 1, characterized in that: The infusion switch includes a bottle cap and an elastic membrane; the bottle cap is connected to the bag opening; the elastic membrane is provided with a water replenishment channel which is closed under normal conditions, and when the pressure exerted by the external force on the elastic membrane reaches a set threshold, the water replenishment channel is pressurized to remain open; the elastic membrane is a return component, and the water replenishment channel has the ability to close automatically.

4. A water storage bag according to claim 1, characterized in that: A positioning slide groove (21) is provided on the outer periphery of the bag opening, and the positioning slide groove (21) is engaged with a fixing piece of an external device to limit the position.

5. A water storage bag water replenishing device, characterized in that: Used for replenishing water in a water storage bag (2) according to any one of claims 1 to 4; the water replenishing device comprises an infusion guide unit and an infusion drive unit; The infusion guide unit is located above the positioning unit, and the infusion guide unit is connected to an external water source through an infusion tube to replenish water to the water storage bag; The infusion driving unit is connected to the infusion guiding unit to drive the infusion guiding unit to move toward the water storage bag to be replenished; when the infusion guiding unit is located at or moved to the upper side of the water storage bag, the moving stroke of the infusion guiding unit is at least greater than the distance between it and the bag opening of the water storage bag, so that when draining water, the output end of the infusion guiding unit is located in the water storage bag; The water replenishing device is used in conjunction with an external positioning unit; the positioning unit has a limiting groove (311) surrounded by a thin wall; the thin wall is engaged with a positioning slide groove (21) provided on the outer periphery of the bag opening; the outer diameter of the bag opening is larger than the diameter of the limiting groove (311), so that the bag opening is slidably limited and embedded in the limiting groove (311) during installation.

6. A self-service water vending machine, characterized in that: Used for selling a water storage bag (2) filled with water according to any one of claims 1 to 4; the self-service water vending machine comprises Frame (1); The turntable unit is located inside the frame (1) and has the ability to rotate on its own. It is also provided with a plurality of limiting grooves (311) for clamping the water storage bag; The water storage bag water replenishing device according to any one of claim 5 is installed on the frame (1) and is located outside at least one corresponding limiting groove (311), and has the ability to move toward the water storage bag (2) clamped on the limiting groove (311); A material pushing unit is located inside the frame (1) and is arranged outside the limiting groove (311) where the water replenishing device is located. The output end of the material pushing unit has the ability to move toward the water storage bag (2) in the limiting groove (311) to drive the water storage bag (2) to move out of the limiting groove (311) to drop the material; and The control detection unit is electrically connected with the turntable unit and the material pushing unit to obtain the rotation information of the turntable unit and output a start / stop signal to the material pushing unit.

7. The self-service water vending machine according to claim 6, characterized in that: The turntable unit comprises a turntable (31) and a turntable drive assembly; The edge of the rotating disk (31) is provided with a plurality of evenly distributed limiting grooves (311); the outer side of each limiting groove (311) is provided with a corresponding material dropping channel (312); The turntable drive assembly comprises a rotating motor (103) fixedly mounted inside the frame (1); an output end of the rotating motor (103) is directly or indirectly connected to the turntable (31) to drive the turntable (31) to rotate.

8. The self-service water vending machine according to claim 7, characterized in that: The turntable drive assembly further comprises a pinion (101), a large gear (102), a bearing seat (104) and a central tube; the pinion (101) is connected to the output end of the rotating motor (103); the large gear (102) is meshedly connected with the pinion (101) and sleeved on the outer circumference of the central tube; the turntable (31) is sleeved on the outer circumference of the bearing seat (104); a bearing is sleeved on the outer circumference of the central tube, and the bearing seat (104) is sleeved and installed on the outer circumference of the central tube and is used to install the bearing; the large gear (102), the turntable (31) and the bearing seat (104) are axially locked as a whole by screws; and the central tube is fixedly installed on the frame (1).

9. The self-service water vending machine according to claim 6, characterized in that: The pushing unit is located on the inner side of the upper end of the limiting groove (311) where the water replenishing device is located; the pushing unit comprises a pushing motor and a pushing block (51); the pushing block (51) is connected to the output end of the pushing motor so as to have the ability to abut against the bag opening of the water storage bag (2) and horizontally drive the water storage bag (2) to move away from the limiting groove (311).

10. The self-service water vending machine according to claim 6, characterized in that: A material replenishing guide cover (91) is fixedly arranged on the periphery of at least one limiting groove (311); a material replenishing channel for the bag opening of the water storage bag (2) to move is provided inside the material replenishing guide cover (91); a material replenishing guide plate matching the positioning slide groove (21) is fixedly arranged inside the material replenishing channel; and the limiting groove (311) where the material replenishing guide cover (91) is located is not a limiting groove (311) corresponding to the water replenishing device.

11. The self-service water vending machine according to claim 10, characterized in that: A guide cover supporting plate is provided at the lower end of the material replenishment guide cover (91) extending toward the center side of the turntable unit, and the guide cover supporting plate is located at the lower end of the turntable unit to support the limit turntable unit.

12. The self-service water vending machine according to claim 6, characterized in that: The frame (1) comprises a load-bearing beam (15) and a plurality of columns (11); the plurality of columns (11) constitute a frame body; the load-bearing beam (15) is fixedly arranged between the columns (11), and the turntable unit is installed at the lower end of the load-bearing beam (15).

13. The self-service water vending machine according to claim 12, characterized in that: A load-bearing hook plate (16) is provided at the lower end of the load-bearing beam (15); the lower end of the load-bearing hook plate (16) is located at the lower end surface of the turntable unit to support the turntable unit after water is filled.

14. The self-service water vending machine according to claim 13, characterized in that: Protrusions are fixedly provided at both ends of the opening side of the limiting groove (311), and the distance between the two correspondingly matched protrusions is larger than the opening of the limiting groove (311) to form a material dropping channel (312); the lower end of the load-bearing hook plate (16) is located at the lower end of the protrusion.

15. The self-service water vending machine according to claim 6, characterized in that: A limit cover shell (81) is provided on the upper side cover of the turntable unit, and the outer edge of the limit cover shell (81) is a limit shell wall extending downward; the limit shell wall is located outside the empty limit groove (311); the limit shell wall is provided with an opening to communicate with the limit groove (311) where the water replenishing device is located.

16. The self-service water vending machine according to claim 6, characterized in that: The control and detection unit comprises a control module and a detection module; the detection module comprises a material detection probe (71) and / or a material push limit switch; The material detection probe (71) is located on the upper side of the preceding limiting groove (311) of the limiting groove (311) where the water replenishing device is located, so as to obtain the material clamping information of the limiting groove (311); the control module is connected to the material detection probe (71) to obtain the material clamping information; The pusher limit switch is located outside the limit groove (311) where the water replenishing device is located, so as to obtain the return information of the output end of the pusher unit; the pusher limit switch is connected to the driving component of the pusher unit, so as to control the operation of the driving component of the pusher unit according to the position information of the water storage bag.

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