JP2002136937A - Washing machine for inner wall surface of tube having small bore diameter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine for the inner wall surface of a tube having a small bore diameter, in which even if a winding tube having a small bore diameter, dirt or the like stuck to the inner wall surface are surely washed out. SOLUTION: A syrup supplying line of a dispenser for pouring out a drink such as syrup is constituted of the tube having a small bore diameter. The washing machine for washing the inner wall surface of the tube is provided with a washing water supplying system connected to the tube 14 constituting a line supplying syrup through a pump 11 for supplying syrup from a connector 13 for connecting a syrup vessel such as a bag-in box. The washing water supplying system is equipped with an oscillating device 20 generating wave motion. Both a washing water supplying source and an air supplying system are connected to the oscillating device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-diameter tube inner wall surface washing machine suitable for cleaning the inner wall surface of a syrup supply tube attached to a dispenser for pouring a soft drink, especially a syrup-based beverage.

[0002]

2. Description of the Related Art As a dispenser for dispensing a syrup-based beverage into a cup, a variable-volume container (called a bag-in-box, hereinafter referred to as BIB) enclosing syrup.
) Is widely used in which a syrup is dispensed by a pump (gas pump) at a constant rate and simultaneously mixed with a separately supplied dilution water to produce a beverage.

In this type of dispenser, BIB
The syrup is guided by a small-diameter tube made of flexible plastic or metal from the pump to the discharge nozzle to a cup or the like via a pump, but the line of this tube is relatively long. Moreover, since it is tortuous, syrup adheres to the inner wall surface of the tube due to use, and is gradually soiled.

Conventionally, the inner wall surface of the tube is periodically cleaned, and the cleaning is generally performed by a cleaning and sterilizing treatment using a chemical.

[0005]

However, it is difficult to remove dirt (especially biofilm) adhered to the inner wall surface of the tube by the above-mentioned cleaning and sterilization using the chemical, and the sterilizing effect by the chemical is sufficiently exhibited. Was difficult.

[0006] In the case of a relatively large diameter and short line used in a draft beer server, it is difficult to remove dirt on the inner wall surface of the tube by inserting a sponge ball into the tube and flushing it with tap water. Although it is possible, it is difficult to push the sponge ball to the end of the tube when the tube has a small diameter, a long line, and a meandering pipe such as a syrup dispenser.

If the high-pressure cleaning water is supplied, the sponge balls can be flushed. However, the sponge balls are flushed by the high-pressure cleaning water, so that the sponge balls are deformed, and the entire surface of the inner wall of the tube is deformed. It passes without contact, and a sufficient cleaning effect cannot be expected.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a small-diameter tube inner wall surface washer capable of reliably removing dirt adhered to the inner wall surface of a small-diameter long and winding tube. It is a thing.

[0009]

According to the present invention, there is provided a washing water supply system which is connected to a small-diameter tube to be washed. Characterized in that a rocking device for generating the vibration is connected.

In the case of a washing machine for washing the inner wall surface of a small-diameter tube constituting a syrup supply line of a dispenser for a soft drink or the like, a syrup is supplied from a syrup container connection connector such as a bag-in-box via a syrup supply pump. A washing water supply system connected to a tube constituting a syrup supply line for discharging the washing water, the washing water supply system includes a swinging device for generating a wave in the washing water, and the washing water supply to the swinging device. A source or an air supply system is connected thereto.

The oscillating device includes an outer casing having connection portions connected to a washing water supply system at both ends in the axial direction, and a magnetic material internally provided movably in the axial direction inside the outer casing and having a through hole in the axial direction. And a coil disposed on the outer surface of the outer casing for alternately generating a magnetic field for the forward and backward movements of the movable body, and energizing the coil for the forward and backward movements. Preferably, the movable body is reciprocated to generate a pulsating wave in the washing water.

The washing water supply system includes a first connection portion for connecting a syrup container connection connector of a dispenser, and a tube connected to a discharge port of a syrup supply pump of the dispenser to form a syrup supply line. A second connection portion detached from the pump and connected thereto, and a third connection portion connected to a discharge port of the pump via a tube,
The first swinging device communicates with the first connection portion and is connected to the second swinging device.
A second swinging device is provided in communication with the connection portion, and an air supply path and a washing water supply route are connected to the first swinging device via a manifold, and the second swinging device is connected to the second swinging device. It is preferable that the second connection portion is connected to the second connection portion by a connection tube.

A sponge ball insertion device is interposed between the second connection portion and the connecting tube, and the sponge ball is inserted into a tube constituting the syrup supply line, and the sponge ball flows along with the washing water. Thus, the inner wall surface of the tube can be cleaned.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a configuration diagram showing a use state of one embodiment of a small-diameter tube inner wall surface washer 1 (hereinafter, simply referred to as a washer) according to the present invention. In this embodiment, the small-diameter tube inner wall surface washer is a portable type so that it can be carried to any place. Yes,
FIG. 2 is a right side view in the use state, and FIG. 3 is a left side view in the non-use state.

The washing machine 1 has a box-shaped main body 2.
And a lid 4 attached to one side edge of the opening of the main body 2 so as to be openable and closable by a hinge 3. A cleaning water supply system 5 is provided in the main body 2, and a control panel is provided in the lid 4. Part 6
And a control unit 7 and a power supply unit 8.

The dispenser 9 to be washed is for dispensing a soft drink or the like, and FIG.
As shown in a part of an example of a type using 10, a suction side port 1 of a syrup supply pump 11 (gas pump) is shown.
A tube 12 connected to 1a is connected to a spout 10a of the BIB 10 via a connector 13, and a tube 14 constituting a syrup syrup supply line is connected to a discharge side port 11b of the syrup supply pump 11, A fixed amount of syrup is supplied through the tube 14 by the operation of the syrup supply pump 12, and when the syrup is poured into the glass C, the syrup is mixed with dilution water to be provided as a beverage. The tube 14 constituting the syrup supply line is not short as shown in the figure, and the length and the path of the syrup supply tube connected from the discharge port 11b of the gas pump to the main body of the dispenser 9 are various. Also in the main body, a syrup tube for a cooling section and the like are formed in a meandering pipe, and are long to reach a spout.

The cleaning water supply system 5 provided in the main body 2 has a first connection portion 15 to which a connector 13 for connecting to the BIB 10 can be connected and a discharge port 11 b of the pump 11. A second connecting portion 16 for connecting the tube 14 connected to form the outlet line by disconnecting the tube 14 from the pump 11, and a third connecting portion 18 for connecting the discharge side port 11 b of the pump 11 via an auxiliary tube 17. Is disposed on the short side surface 2 a of the main body 2.

From the inside of the first connecting portion 15 to the opposite end of the main body 2, a first swinging device 20, a manifold 2
1. The air supply pipes 22 are sequentially connected.
2 is provided with an air inlet at the end, and an air valve 23 comprising a solenoid valve is provided in the air supply pipe 22.
And an air check valve 24 to form an air supply system.

The manifold 21 is provided with a washing water supply pipe 2.
5 and the cleaning agent supply pipe 26 are connected to each other, and the air sucked through the air supply pipe 22 and the cleaning water and the cleaning agent supplied through the cleaning water supply pipe 25 and the cleaning agent supply pipe 26 are connected in the manifold 21. They are mixed and sent to the rocking device 20.

Opposite ends of the cleaning water supply pipe 25 and the cleaning agent supply pipe 26 are opened on a side surface 2b of the main body 2 opposite to the side surface 2a.
a and 26a are connected to a cleaning water tank 27 such as a poly tank and a cleaning agent tank 28 via connectors 27a and 28a. The cleaning water supply pipe 25 and the cleaning agent supply pipe 26 have solenoid valves 29 and 30 respectively.
Is provided. The cleaning fluidity of the cleaning water is obtained by using the syrup discharge pump 11 of the dispenser 9 as a driving source.

A second swinging device 31 is connected to the inside of the second connection portion 16, and a sponge ball thrower 32 is connected to the inside of the third connection portion 18. The second swinging device 31 and the sponge ball thrower 32 are connected by a connecting tube 33.

The first and second oscillating devices 20, 31
5 has the same configuration, as schematically shown in FIG. 5 by way of example, one of the connecting portions 20 is connected to the manifold 21 at the upstream end and the connecting portion to the first connecting portion 15 is connected at the downstream end. An outer housing 36 having an inner housing 35 and an inner housing 36 movably housed in the outer housing 36 in the axial direction.
A movable body 38 composed of a magnet having a through-hole 37 having substantially the same diameter as the opening diameter of each of the outer casings 4 and 35 and coils 39 and 39 disposed on the outer surface of the outer casing 36. The movable body 38 reciprocates by forming an AC magnetic field of an arbitrary frequency, thereby generating a strong pulsating wave in the washing water flowing in the outer casing 36.

Next, a sponge ball thrower 32 used for washing with the sponge ball 40 is shown in FIG.
As shown in FIG. 1, one end has the above-described third connecting portion 18 at one end and a connecting portion 41 at the other end for connecting the connecting tube 33, and has a flow connecting these connecting portions 18 and 41 inside. A sponge ball input section 44 is provided on an upper portion of an outer casing 43 having a path 42, and the input section 44 and the flow path 42 are communicated with each other through a ball through hole 45.
The sponge ball 40 is supplied into the flow channel 42 by pushing the sponge ball 40 into the channel 4 with a push rod 46.

Therefore, the tube 1 of the dispenser 9
When cleaning the insides of the tubes 2 and 14, the washing machine 1 is brought close to the syrup container, the cover 4 is opened to open the control panel 6, and the connector 13 of the tube 12 on the suction side of the dispenser 9 is connected. It is detached from the BIB 10 and connected to the first connection part 15 of the cleaning machine 1.

The tube 14 constituting the syrup supply line is disconnected from the discharge port 11b of the pump 11 and is connected to the third connecting portion 18 of the washing machine 1. Pump 11
The auxiliary tube 17 is connected to the discharge-side port 11a of the first embodiment, and the other end of the auxiliary tube 17 is connected to the second connection portion 16.

On the other hand, a washing water tank 27 and a washing agent tank 28 are connected to connecting portions of the washing water supply pipe 25 and the washing agent supply pipe 26 of the washing machine 1 by connecting members 27a, 28a.
When the air valve 23 is opened in this manner, air is sent to the first swinging device 20 via the manifold 21, and by opening the solenoid valves 29 and 30, both of the cleaning water and the cleaning agent pass through the manifold 21. To one rocking device 20.

At this time, the coil 3 of the first swinging device 20
When an electric current is applied to the electrodes 9 and 39, an AC magnetic field is generated, and the movable body 38 reciprocates in the axial direction, so that air and cleaning water flowing in the outer casing 36 of the oscillating device 20 and the through hole 37 of the movable body 38. A strong pulsating wave is generated, and the flow enters the tube 12 through the connector 13 and this tube 12
The pulsating wave intermittently passes through the inner wall surface of the housing, thereby receiving a strong cleaning action.

On the other hand, the air and the washing water which have come out of the pump 11 enter the second swinging device 31 through the auxiliary tube 17 and are sent out as pulsating waves by the same operation as the first swinging device 20. It flows into the syrup supply line tube 14 through the connection tube 33, and the inner wall surface is cleaned.

This syrup supply line tube 14
When sponge cleaning is also used inside the sponge ball, the sponge ball 40 is inserted into the flow path 42 by inserting the sponge ball 40 into the sponge ball input section 44 of the sponge ball input device 32 and pushing it in with the push rod 46. The dirt sticking to the inner wall surface of the tube 14 is also washed away by the sliding flow of the 40 by the compressed air and the washing water.

Operation of the washing machine 1 having the above functions (washing)
By setting the mode in the control unit in advance, it is possible to perform cleaning according to the purpose.

That is, the cleaning function is set as follows.

(1) Washing only with compressed air pressure (discharge of residual liquid in the tube) (2) Washing only with washing water (3) Pulsation by washing water + oscillating device (addition of action force of washing water) (4) Rinse by cleaning water + compressed air + oscillating device (addition of cavitation effect) (5) Rinse by washing water + sponge ball + oscillating device (addition of sliding cleaning power) (6) (3) ), (4), (5), and (6) include the addition of a cleaning agent.

A program suitable for the purpose of cleaning can be performed by preparing a program based on these cleaning functions in advance and selecting the function.

The control panel section 6 is provided with a cleaning function changeover switch group 50 for selecting the cleaning function. In addition, the control panel section 6 includes a mode changeover switch 51 for switching between a direct mode and a set mode, a start / cancel switch 52, an operation display lamp 53, a power switch 54, a timer setting section 55, a frequency indicator 56, and an input power indicator 5
7, a preset switch group 58 and an operation switch group 59 are provided.

As a control function, there are a direct mode and a set mode as operation modes, and there is also a "storage operation". The adjustment function includes setting of the opening / closing timing of the air valve, setting of the timer, and setting of the operation of the swing device. Other functions include overheat alarm 6
0, a display function of the monitor lamp group 61 and the like.

In the direct mode, when the mode changeover switch 51 is switched to "direct", the operation starts immediately when the operation switch 59 is turned on, thereby enabling all parallel operations.

In the set mode, when the mode switch 51 is switched to "set", the operation switch 5
The operation based on the set value set in the control panel unit 6 is performed by turning ON of 9. When the set start switch 52 is turned on during the operation, the operation is stopped. It is possible to change the setting during operation in the "set mode".

The preset mode is a mode that is normally used. When the preset switch 58 is turned on, the operation starts under the conditions set and stored in advance. This switch 58 is valid regardless of the mode setting. The operation is started one second after the preset switch 58 is turned on, and a continuous sound (beep) is generated during that time.

In the "memory operation", the mode changeover switch 51 is set to "set", and after setting the operating conditions, an arbitrary preset switch 58 is pressed twice per second. This memory is saved over the previous settings.

The start / stop of the operation starts one second later when an arbitrary preset switch 58 is turned on. When the mode switch 51 is pressed during the operation, the operation is instantly stopped.

As for the switching of the preset, when another preset switch 58 is pressed during operation in an arbitrary preset mode, the operation is stopped, and the switch pressed later is made valid. Also, the mode changeover switch 51
Is in the "set" position, turning on the set switch 58 permits the change to the "set mode".

Next, the opening / closing timing of the air valve of the adjusting function is set to "continuous operation" when the air valve 23 is independently turned on, and "intermittent operation" at a preset cycle when operating in parallel with another switch.

The operation timing of the above-mentioned "intermittent operation" is 0 to 0.9 second and 0.1 second interval (0 is continuous).
The N-OFF time is the same.

For the timer setting, two independent subtraction timers are used, and the time setting is a maximum of 24 hours.
It can be set at one minute intervals. Each timer 55
_1, 55 ₂ operates in conjunction with a single or another function. When the timer is activated, the monitor lamp 61 of the timer is turned on. When the count reaches “0”, a continuous sound is generated.

Next, the operation setting of the rocking devices 20 and 31 has two independent power supplies, and "frequency" and "input power" can be set arbitrarily. And independent 2
Frequency indicator ₅₆ 1 strains, 56 and a ₂ and the power Indicator ₅₇ 1, 57 _2.

The applied frequency range is 10 to 990 Hz (1
The input power range is from 1 to 99 W (1 W unit).

There is provided means for making adjustments in the above units, and a rotary encoder can be used as the means. The above set values are stored and can be reproduced.

Heating alarm 60 as another function
Monitors the coil temperature of the rocking devices 20 and 31 and issues an alarm by continuous sound and blinking of the monitor lamp 61 when the coil is overheated, and issues an alarm when a preset caution temperature is reached. However, there are no restrictions on driving.

The oscillating device 20, which has reached the set temperature,
31 is forcibly terminated at that time. At the time of the stop, all the functions associated with the corresponding vibration device 20 or 31 are stopped, and the values of the timers 55 ₁ and 55 ₂ (subtraction timers) and the operation state at the end are saved. Then, the operation is restarted when the temperature returns to the preset return temperature.

When the corresponding set or preset switch 58 is pressed at the time of forced termination, the setting is reset.
When the heating alarm 60 is lit at the time of this reset, the operation of the swing devices 20 and 31 is not permitted.

Monitor lamp 61 as other function
Is composed of two-color LEDs, the operating state is indicated by red lighting, and the set mode is indicated by green lighting.

Each of the above switches is of a waterproof type, so that a membrane switch can be used. The push button type switches generate a beep sound when pressed.

Further, a remote controller for performing the above operations can be added. In this case, a maximum of 10
m can be used.

Next, the test results of the cleaning power of the tube inner wall surface washer according to the present invention will be described.

FIG. 7 shows an outline of the test apparatus used in the above test. The tube 14 constituting the syrup supply line is connected to the air and washing water supply system 62 in the above embodiment, and the upstream of the tube 14 is connected. A syrup supply system 64 from the BIB 10 is connected via a T-shaped joint pipe 63 near the end, and the gas pump 6 of the syrup supply system 64 is connected.
5, the syrup is supplied into the tube 14, then the supply of the syrup is stopped, the inside of the tube 14 is washed, and the state of the cleaning inside the tube 14 is checked. A check valve 65 is interposed near the joint pipe 63 of the syrup supply system 64 so that the washing water from the washing water supply system 62 does not flow into the syrup supply system 64. In addition, 66 is a solenoid valve for interrupting the supply of syrup, 67 is a flow regulator, and 68 is a syrup valve.

The members of the cleaning water supply system 62 corresponding to those in FIG. 1 are denoted by the same reference numerals.

The method of evaluation by the above-described test apparatus is to quantitatively measure and evaluate the cleaning effect due to the difference in the cleaning function.
The washing water was passed through the sample No. 4, and the detergency was evaluated by measuring the residual sugar content of the washing wastewater at regular intervals.

The tube 14 used for the test has an inner diameter of 6.
3 mm, length 7200 mm, internal volume 200 ml.

Next, the evaluation procedure was as follows. (1) Preparation a) The cleaning valve 29 is turned on, the syrup valve 68 is opened, and after the space between the valve 68 and the cleaning water valve 29 is filled with the cleaning water, the syrup valve 68 is closed. b) After turning off the washing water valve 29, the valve 66 of the syrup supply system 64 is turned on, the syrup valve 68 is opened, and the syrup is filled up to the syrup valve 68 through the T-shaped joint pipe 63. At this time, about 300 ml of washing water is discharged, and then 100 ml or more of syrup is discharged. c) After closing the syrup valve 68, turn the valve 66 OF
F. d) Measurement data 003 Measurement with syrup supply tube 14 connected to T-shaped joint tube 63. Measurement Data 006 The tube 14 is removed from the T-shaped joint tube 63, and the measurement is performed after the tube 14 is closed with a closing nut.

(2) Measurement a) A fixed amount of the washing wastewater is separated from the syrup valve 68,
Measure the residual sugar content.

(3) Cleaning method [G-1] The cleaning water valve 29 of the cleaning water supply system 62 is closed, and the syrup valve 68 is opened to introduce cleaning water. “G-2” The swing device 31 is turned on, and the washing water valve 29 is turned on.
After turning on, the syrup valve 68 is opened and washing water is introduced. "G-3" The swing device 20 is turned on, the air valve 23 is turned on intermittently, the washing water valve 29 is turned on, and then the syrup valve 68 is opened and washing water is introduced. In this case, since the flow velocity is small and the air suction amount becomes uneven,
By actuating, the intake air was dispersed. "G-4" The swing device 31 is turned on, the air valve 23 is turned on intermittently, the washing water valve 29 is turned on, and then the syrup valve 68 is opened and washing water is introduced.

(4) Completion of Measurement (Return to Preparation Procedure) FIGS. 8A to 8D illustrate cleaning images of the above-mentioned cleaning methods “G-1” to “G-4”.

FIGS. 9 and 10 show the measurement results obtained by the above-described cleaning methods.

FIG. 9 is a numerical value and a graph showing the result of the measurement data 006, and FIG. 10 is a numerical value and a graph showing the result of the measurement data 003.

In view of the above results, the measured data 006 showed that G-2 has a stable and good detergency as compared with the conventional cleaning using only water (G-1).

The method (G-4) in which air is sucked together with the cleaning water at a constant mixing ratio and is made finer by the oscillating device 31 and a pulsating wave is applied to the cleaning water (G-4) is relatively influenced by the variation in the air mixing ratio. , Indicating that it has the strongest detergency.

The method of sucking air at a constant mixing ratio without giving a pulsating wave (G-3) is generally a conventional method of G-1 and G
The detergency was shown in the middle of -2, but the effect varied greatly depending on the mixing ratio of air.

Although it is difficult to maintain the inflow ratio of air at a low flow rate, a large air reservoir in the suction side tube can be dispersed by operating the swinging device 20, and a certain ratio can be maintained. Can be approached.

In the graph of FIG. 9, the peak of G-4 at the washing water amount of 1000 ml does not appear in other cleaning methods, and is a characteristic inherent to the G-4 method. It is considered that the retained syrup was washed out in the branch pipe portion of the T-shaped joint pipe 63.

[0070]

As described above, according to the present invention, the pulsating wave is given to the washing water by the oscillating device interposed in the washing water supply system, and the washing water is supplied into the tube. The expansion, shrinkage, vibration and interfacial flow force of the tube are given by this, thereby promoting the peeling and dispersing of the dirt, so that a good cleaning effect can be obtained, and even the long tube can be surely cleaned. Can be.

The vibrator can generate a strong wave by applying an arbitrary frequency of several Hz to several hundreds Hz and an arbitrary AC power, and uses a bubble cleaning by air mixing and a sponge pole. It is possible to perform complex cleaning of sliding cleaning.

Further, when the above-mentioned sponge pole is used in combination, the sponge pole can be smoothly moved at a normal pressure and washed even with a bent small-diameter tube. It is easy to control the moving speed while sliding the width of
Unprecedented detergency can be obtained even for strong dirt.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of a small-diameter tube inner wall surface washer according to the present invention.

FIG. 2 is a right side view showing a specific example of the cleaning machine in FIG. 1 with a cover part opened.

FIG. 3 is a left side view showing a state where a lid is closed.

FIG. 4 is a configuration diagram illustrating an example of a syrup dispenser as an example of a cleaning target.

FIG. 5 schematically shows the configuration of the swing device in FIG. 1,
(A) is a cross-sectional view of the movable body at the left row, and (B) is a cross-sectional view of the movable body at the right row.

FIGS. 6A and 6B are diagrams illustrating an example of a sponge pole insertion device in FIG. 1, wherein FIG. 6A is a diagram illustrating a state before a sponge ball is inserted, and FIG.

FIG. 7 is a configuration diagram of test mounting used for a test of the present invention.

FIGS. 8A to 8D are conceptual diagrams of each cleaning function.

FIG. 9 is a numerical table and a graph showing test results.

FIG. 10 is a numerical table and a graph showing test results.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Small-diameter tube inner wall surface washer 2 Main body 4 Lid 5 Wash water supply system 6 Control panel 9 Dispenser 10 Back-in box (BIB) 11 Syrup supply pump (gas pump) 14 Syrup supply line tube 15 First connection Part 16 Second connecting part 18 Third connecting part 20 First oscillating device 31 Second oscillating device 32 Sponge ball thrower 38 Movable body 39 Coil 40 Sponge ball

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F16L 55/24 B67D 1/08 Z

Claims (6)

[Claims] A washing water supply system connected to a small-diameter tube to be washed is provided, and an oscillating device for generating a wave in the washing water is connected in the middle of the washing water supply system. A wall cleaning machine for inside diameter tubes. 2. A washing machine for washing an inner wall surface of a small-diameter tube constituting a syrup supply line of a dispenser for dispensing beverages such as syrup, wherein a pump for supplying syrup from a syrup container connection connector such as a bag-in-box. A washing water supply system connected to a tube constituting a line for supplying a syrup via the washing water, the washing water supply system includes an oscillating device for generating a wave in the washing water, and the oscillating device includes a washing device. A small-diameter tube inner wall surface washer to which a water supply source is connected. 3. The small-diameter tube inner wall surface washer according to claim 1, wherein the oscillating device is connected to the cleaning water supply system and the air supply system. 4. The oscillating device has an outer casing having connection portions connected to a washing water supply system at both ends in the axial direction, and an axially movable through hole provided in the outer casing so as to be movable in the axial direction. A movable body composed of a magnet, and a coil disposed on the outer surface of the outer casing for generating a magnetic field for the forward and backward movements of the movable body alternately; and a coil for the forward and backward movements. The small-diameter tube inner wall surface washer according to any one of claims 1 to 3, wherein the movable body is reciprocated by energization to generate a pulsating wave in the washing water. 5. A syrup supply line connected to a first connection portion for connecting a syrup container connection connector of a dispenser and a discharge port of a syrup supply pump of the dispenser. A second connecting portion that connects to the pump by removing it from the pump, and a third connecting portion that connects to a discharge port of the pump via a tube,
The first swinging device communicates with the first connection portion and is connected to the second swinging device.
A second swinging device is provided in communication with the connection portion, and an air supply path and a washing water supply route are connected to the first swinging device via a manifold, and the second swinging device is connected to the second swinging device. The second connection part is connected by a connection tube.
The small-diameter tube inner wall surface washer according to any one of claims 4 to 4. 6. A sponge ball dispenser is interposed between the second connecting portion and the connecting tube, and a sponge ball is inserted into a tube constituting the syrup supply line. The small-diameter tube inner wall surface washer according to any one of claims 1 to 5.