A sewage treatment device for garbage transfer vehicles

Abstract

A sewage treatment device for a garbage transfer vehicle relates to the technical field of sewage treatment. An interception net is movably installed inside the sewage treatment box using an elastic structure. An electric-controlled agent box is provided on the outer wall of the sewage treatment box. The output end of the high-pressure pump in the agent area of ​​the electric-controlled agent box is connected to the agent main pipe through a pipeline. The other end of the agent main pipe is connected to an annular agent pipe. The annular agent pipe is embedded in an arc-shaped groove at the top of the outer ring wall of the sewage treatment box. The side wall of the annular agent pipe is connected to several agent branches. The outlet end of the agent branch pipe is located above the interception net. The device can disperse the viscous paste formed by fiber or granular impurities contained in the squeezed sewage, reduce the interaction force between particles, and disperse the paste into fine particles, thereby improving the fluidity of the sewage. It is also convenient for directly removing the filter assembly for cleaning, which is convenient for operation.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device for a garbage transfer vehicle. Background Art

[0002] Currently, wastewater from garbage transfer trucks is typically collected in specialized tanks during the compression process, sealed to prevent leakage. Some trucks also incorporate simple filtration mechanisms to filter wastewater before it enters the tank, separating solid impurities and reducing the solids content. Upon arrival at the transfer station, the wastewater in the tank is discharged into the station's sewage pool for centralized purification.

[0003] During the garbage squeezing process in the compression type garbage transfer vehicle, the discharged sewage is often mixed with fiber or granular impurities, forming a paste-like substance with high viscosity, which can easily block the filter components, drainage pipes and drainage holes in the sewage tank installed at the bottom of the filler, affecting the discharge of sewage. At this time, maintenance is required. Since the sewage tank is generally installed at the bottom of the filler with bolts and sealing components, the sewage tank needs to be disassembled as a whole, which is troublesome and not conducive to operation. Summary of the Invention

[0004] The purpose of the present invention is to address the defects and shortcomings of the existing technology and provide a sewage treatment device for a garbage transfer vehicle, which can disperse the viscous paste formed by fiber or granular impurities contained in the squeezed sewage, reduce the interaction force between the particles, and disperse the paste into fine particles, thereby improving the fluidity of the sewage, and making it easy to directly remove the filter component for cleaning, which is convenient for operation.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: it includes a sewage treatment box and an interception net; the upper port of the sewage treatment box is bent outward and integrally formed with a mounting edge with perforations and sealing strip grooves; the bottom of the sewage treatment box is connected to a drainage pipe; an interception net is movably installed inside the sewage treatment box using an elastic structure; an electric-controlled chemical box is provided on the outer wall of the sewage treatment box, and the output end of the high-pressure pump in the chemical area of ​​the electric-controlled chemical box is connected to the chemical main pipe through a pipeline, and the other end of the chemical main pipe is connected to the annular chemical pipe, which is embedded in the arc groove at the top of the outer ring wall of the sewage treatment box, and the side wall of the annular chemical pipe is connected to several chemical branches, and the outlet end of the chemical branch pipe is located above the interception net.

[0006] With the above design, the sewage treatment tank is installed to the bottom of the filler using the mounting edge and is sealed with bolts and sealing rings. When the garbage is sent into the carriage and squeezed, the sewage falls into the sewage treatment tank from the opening at the bottom of the filler. At the same time, the high-pressure pump in the electronically controlled agent tank is started to send the agent (such as dispersant) into the annular agent pipe, and then into the sewage treatment tank at high pressure through multiple agent branches, and into the sewage. During the transportation process, the vehicle bumps, driving the interception net to swing up and down under the action of the elastic structure, thereby achieving vibration mixing of the sewage and the agent. The agent disperses the viscous paste formed by fiber or granular impurities contained in the sewage. After arriving at the destination, the drain valve on the drain pipe is opened to discharge the sewage treated with the agent.

[0007] Preferably, the inner bottom wall of the sewage treatment box is provided with a drainage slope, and the drainage pipe is connected to the lowest position of the drainage slope.

[0008] Preferably, a side wall of the sewage treatment box away from the electronically controlled reagent box is provided with an inspection slot corresponding to the position of the interception net, and an inspection end cover is sealed and installed at the position of the inspection slot using a plurality of screws.

[0009] Preferably, the elastic structure comprises:

[0010] An electromagnet is installed in a buffer installation groove provided on the annular wall of a sewage treatment box. The interception net can be located in the buffer installation groove and shake up and down. During the shaking process, some sewage containing a paste-like substance with a large viscosity formed by fiber or granular impurities enters the maintenance groove from the frame position of the interception net, and then flows into the sewage treatment box through the gap between the bottom of the interception net and the buffer installation groove. Then, under the action of shaking, the sewage collides and is sheared with the interception net up and down or left and right, thereby further achieving mixing of the sewage and the agent, and dispersion of the paste-like substance in the sewage; the electric control circuits of the several electromagnets are arranged inside the side wall of the sewage treatment box, and finally pass through the side wall of the sewage treatment box and the electric control agent box, and are electrically connected to the electric control area in the electric control agent box;

[0011] Spring 1, wherein the upper end of the spring 1 is connected to the electromagnet, and the lower end of the spring 1 is connected to the iron ring;

[0012] Spring 2, the upper end of the spring 2 is connected to the iron ring, and the lower end is connected to the limit pressure plate, and the limit pressure plate is movably pressed on the mesh part of the interception net.

[0013] Preferably, a sealing rubber plug is installed on the inner side wall of the inspection end cover, and the sealing rubber plug is squeezed into the inspection slot.

[0014] Preferably, a plurality of handles are installed on the side wall of the frame of the intercepting net, corresponding to the maintenance slot.

[0015] Preferably, a guide plate movably in contact with the handle is embedded in the inner side wall of the sealing rubber plug at a position corresponding to the handle.

[0016] Preferably, a sealing end cap is connected to the outlet end of the medicine branch pipe by means of a plurality of springs, and the inner end surface of the sealing end cap is pressed against the outlet end of the medicine branch pipe.

[0017] Preferably, the inner end surface of the sealing end cover is integrally formed with a plurality of guide ridges, which are distributed circumferentially to form a conical structure with the center protruding toward the inside of the medicine branch tube; the outlet end surface of the medicine branch tube is provided with a plurality of ridge embedding grooves that cooperate with the guide ridges.

[0018] Preferably, the outlet end surface of the medicine branch pipe is provided with a plurality of mounting holes for embedding the supply springs at a position avoiding the ridge embedding groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a sewage treatment device for a garbage transfer vehicle, which utilizes the bumps during the transfer process to relatively fully mix the agent added to the sewage treatment box with the sewage, so that the viscous paste formed by the fiber or granular impurities contained in the squeezed sewage is dispersed, reducing the interaction force between the particles, and dispersing the paste into fine particles, thereby improving the fluidity of the sewage, and facilitating the direct removal and cleaning of the filter assembly, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a bottom view of the present invention.

[0022] Figure 3 It is a cross-sectional view of the present invention.

[0023] Figure 4 It is a structural diagram of the electromagnet, spring 1, iron ring, spring 2 and limit pressure plate in the present invention.

[0024] Figure 5 It is a schematic diagram of the internal structure of the present invention.

[0025] Figure 6 yes Figure 5 Enlarged view of part A in the middle.

[0026] Figure 7 It is a connection diagram of the annular medicine pipe, the medicine main pipe and the medicine branch pipe in the present invention.

[0027] Figure 8 It is a structural schematic diagram of the medicine branch pipe and the sealing end cover in Example 1.

[0028] Figure 9 It is a structural diagram of the medicine branch pipe and the sealing end cover in Example 2.

[0029] Figure 10 It is a structural diagram of the sealing end cover in the second embodiment.

[0030] Figure 11 It is a structural diagram of the medicine branch pipe in Example 2.

[0031] Description of reference numerals:

[0032] Sewage treatment box 1, discharge slope 1-1, buffer installation groove 1-2, maintenance slot 1-3, installation edge 2, interception net 3, maintenance end cover 4, annular chemical pipe 5, drainage pipe 6, electric control chemical box 7, chemical main pipe 8, chemical branch pipe 9, ridge groove 9-1, installation hole 9-2, sealing end cover 10, spring three 11, elastic structure 12, electromagnet 12-1, spring one 12-2, iron ring 12-3, spring two 12-4, limit pressure plate 12-5, handle 13, sealing plug 14, guide plate 15, guide ridge 16. DETAILED DESCRIPTION

[0033] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments described are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0034] like Figure 1-Figure 7As shown, this specific embodiment adopts the following technical solutions: it includes a sewage treatment box 1 and an interception net 3; the upper port of the sewage treatment box 1 is bent outward and integrally formed with a mounting edge 2 with perforations and sealing strip grooves; the bottom of the sewage treatment box 1 is connected to the drainage pipe 6; the inner bottom wall of the sewage treatment box 1 is provided with a drainage slope 1-1, and the drainage pipe 6 is connected to the lowest position of the drainage slope 1-1. The setting of the drainage slope 1-1 is conducive to the discharge of sewage; the interception net 3 is movably installed inside the sewage treatment box 1 using an elastic structure 12; the outer wall of the sewage treatment box 1 is provided with an electric control agent box 7, and the electric control agent box 7 is divided into an upper electric control area and a lower agent area by a horizontal partition, and the electric control area is provided with a power supply magnet 12-1 and a high voltage The power supply and control switch for the pump operation, the reagent area is filled with reagents for treating sewage (such as dispersants, oxidants, etc.), and can also be filled with clean water for cleaning the sewage treatment box 1. The high-pressure pump is a submersible pump, which is placed in the reagent area, and the output end of the high-pressure pump is connected to the reagent main pipe 8 through a pipeline (the pipeline is connected to the lower end of the reagent main pipe 8 after passing through the diaphragm), and the other end of the reagent main pipe 8 passes through the top wall of the electronic control reagent box 7 and is connected to the annular reagent pipe 5. The annular reagent pipe 5 is embedded in the arc-shaped groove at the top of the outer ring wall of the sewage treatment box 1, and the side wall of the annular reagent pipe 5 is connected to several reagent branch pipes 9. The reagent branch pipe 9 is sealed and penetrates the side wall of the sewage treatment box 1 with a sealing rubber ring, and the outlet end is located above the interception net 3;

[0035] The sewage treatment box 1 is provided with an inspection slot 1-3 corresponding to the position of the intercepting net 3 on one side wall away from the electronic control agent box 7, and an inspection end cover 4 is sealed and installed at the position of the inspection slot 1-3 using a number of screws; a sealing plug 14 is installed on the inner side wall of the inspection end cover 4, and the sealing plug 14 is extruded and set in the inspection slot 1-3; a plurality of handles 13 are installed on the side wall of the mesh frame of the intercepting net 3 corresponding to the inspection slot 1-3; a guide plate 15 that is in active contact with the handle 13 is embedded in the inner side wall of the sealing plug 14 at a position corresponding to the handle 13. When the inspection end cover 4 is installed in the inspection slot 1-3, the guide plate 15 is just in contact with the handle 13. When the intercepting net 3 shakes up and down, the handle 13 is just located at the position of the guide plate 15 and slides up and down, thereby avoiding friction caused by direct contact between the handle 13 and the sealing plug 14.

[0036] The elastic structure 12 comprises:

[0037] Electromagnet 12-1, the electromagnet 12-1 is installed in the buffer installation groove 1-2 opened on the inner ring wall of the sewage treatment box 1, and the interception net 3 can be located in the buffer installation groove 1-2 and shaken up and down. During the shaking process, some sewage containing a paste-like substance with a large viscosity formed by fiber or granular impurities enters the maintenance groove 1-3 from the frame position of the interception net 3, and then flows into the sewage treatment box 1 through the gap between the bottom of the interception net 3 and the buffer installation groove 1-2, and then collides and shears with the interception net 3 up and down or left and right under the action of shaking, thereby further achieving mixing of sewage and chemicals, and dispersion of the paste-like substance in the sewage; the electrical control circuits of several electromagnets 12-1 are all arranged inside the side wall of the sewage treatment box 1, and finally pass through the side wall of the sewage treatment box 1 and the electronically controlled reagent box 7, and are electrically connected to the electronic control area in the electronically controlled reagent box 7;

[0038] Spring 12-2, the upper end of the spring 12-2 is connected to the electromagnet 12-1, and the lower end is connected to the iron ring 12-3;

[0039] Spring 2 12 - 4 , the upper end of the spring 2 12 - 4 is connected to the iron ring 12 - 3 , and the lower end is connected to the limit pressure plate 12 - 5 , and the limit pressure plate 12 - 5 is movably pressed on the mesh part of the interception net 3 .

[0040] Example 1:

[0041] See Figure 8 As shown, in this embodiment, a sealing end cover 10 is connected to the outlet end of the medicine branch pipe 9 by using a plurality of springs 11 , and the inner end surface of the sealing end cover 10 is pressed against the outlet of the medicine branch pipe 9 .

[0042] Example 2:

[0043] See Figures 9-11 As shown, the inner end surface of the sealing end cover 10 in this embodiment is integrally formed with a plurality of guide ribs 16, and the plurality of guide ribs 16 are distributed circumferentially to form a conical structure with its center protruding toward the interior of the medicine branch pipe 9, thereby guiding and dispersing the sprayed medicine; the outlet end surface of the medicine branch pipe 9 is provided with a plurality of rib embedding grooves 9-1 that are embedded in cooperation with the guide ribs 16; the outlet end surface of the medicine branch pipe 9 is provided with a plurality of mounting holes 9-2 for embedding the supply spring three 11 at a position avoiding the rib embedding grooves 9-1.

[0044] When using the present invention, the sewage treatment box 1 is installed to the bottom of the filler using the mounting edge 2 and is sealed with bolts and sealing rings. When the garbage is sent into the compartment and squeezed, the sewage falls into the sewage treatment box 1 from the opening at the bottom of the filler. At the same time, the high-pressure pump in the electronically controlled reagent box 7 is started to send the reagent (such as dispersant) into the annular reagent pipe 5, and is sent into the sewage treatment box 1 by multiple reagent branches 9 under high pressure. Entering the sewage, the reagent is discharged from the outlet end of the reagent branch 9 under the action of the high-pressure pump. During the spraying, the impact force generated overcomes the elastic force of the spring three 11, thereby pushing open the sealing end cover 10 and directly impacting the guide rib 16. After being dispersed and expanded by the guide rib 16, the liquid is sprayed into the sewage in a scattered and splashing manner, allowing the medicine to have more contact with the sewage. After the medicine is added, the sealing end cover 10 is reclosed to the outlet end of the medicine branch pipe 9 under the elastic force of the spring three 11, effectively protecting the inside of the medicine branch pipe 9 and preventing the sewage from overflowing into the medicine branch pipe 9 due to shaking during the transfer process.

[0045] During the transportation process, the vehicle bumps and the electromagnet 12-1 is not energized. At this time, the electromagnet 12-1 has no magnetic attraction on the iron ring 12-3, and the spring 12-2 and the spring 2 12-4 are in their respective natural states (i.e., no force state). In this state, the limit pressure plate 12-5 is just pressed on the mesh surface of the interception net 3. The limit pressure plate 12-5 is made of silicone material with certain anti-corrosion performance. The micro-elasticity it possesses is just in contact with the interception net 3, reducing the lateral deviation of the interception net 3. During the driving of the transfer vehicle, the bumps caused by the road to the transfer vehicle will drive the interception net 3 under the action of the spring 1 12-2 and the spring 2 12-4. The up and down shaking realizes the vibration mixing of the sewage and the reagent, and the reagent disperses the viscous paste formed by the fiber or granular impurities contained in the sewage; during the shaking process, the sewage enters the maintenance slot 1-3 from the frame position of the interception net 3, and then flows into the position below the interception net 3 through the gap between the bottom of the interception net 3 and the buffer installation slot 1-2, and then collides and shears with the interception net 3 up and down or left and right under the action of shaking, thereby further achieving the effect of mixing and dispersion; after arriving at the destination, the drain valve on the drain pipe 6 is opened (the installation of the drain valve is a prior art and is not shown in the figure) to discharge the sewage treated with the reagent;

[0046] When it is necessary to use clean water to perform rough cleaning on the sewage treatment box 1, the clean water is loaded into the reagent area of ​​the electronically controlled reagent box 7 through the liquid inlet pipe connected to the reagent box 7 (the connection between the two is conventional technology, not shown in the figure), and the clean water is pumped into the sewage treatment box 1 by a high-pressure pump, so that the clean water covers the interception net 3. When the transported garbage is dumped, the transfer vehicle will also generate some vibration force, which also drives the interception net 3 to shake up and down under the action of the elastic structure 12, thereby achieving the stirring of the clean water, so that the clean water flushes the inner wall of the sewage treatment box 1 and the interception net 3, and finally the drain valve on the drain pipe 6 is opened to discharge the garbage;

[0047] When it is necessary to thoroughly clean the intercepting net 3, the inspection end cover 4 can be opened and the electromagnet 12-1 can be energized at the same time. After the electromagnet 12-1 is magnetized, the magnetic force overcomes the elastic force of the spring 12-2 and magnetically attracts the iron ring 12-3. At this time, the spring 2 12-3 and the limit pressure plate 12-5 are lifted, and the limit pressure plate 12-5 is separated from the intercepting net 3. At this time, the handle 13 can be used to take the intercepting net 3 out of the buffer mounting groove 1-2 and thoroughly cleaned by the external cleaning device. The high-pressure water gun can also be used to spray water from the buffer mounting groove 1-2 position toward the inner wall of the sewage treatment box 1 to flush and clean the inner wall of the sewage treatment box 1; after cleaning, the intercepting net 3 is reinserted into the sewage treatment box 1 from the inspection slot 1-3, and then the power of the electromagnet 12-1 is disconnected, and it is demagnetized. At this time, the iron ring 12-3 falls from the electromagnet 12-1, and the limit pressure plate 12-5 is pressed onto the mesh surface of the intercepting net 3 again.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] 1. By utilizing the bumps during transportation, the chemicals added to the sewage treatment tank are mixed relatively fully with the sewage, so that the viscous paste formed by the fiber or granular impurities contained in the squeezed sewage is dispersed, the interaction force between the particles is reduced, and the paste is dispersed into fine particles, thereby improving the fluidity of the sewage;

[0050] 2. The interception net is detachably installed inside the sewage treatment tank using an elastic structure, and an inspection end cover is provided to facilitate direct removal and cleaning of the filter assembly for easy operation;

[0051] 3. The interception net swings up and down with the elastic structure, and the sewage is sheared and dispersed up and down by the interception net, making the sewage dispersed more thoroughly and avoiding the formation of large particles;

[0052] 4. The high pressure of the high-pressure pump combined with the sealing end cover with guiding ridges can not only protect the chemical branch pipe from pollution, but also guide the sprayed chemical to disperse into the sewage, increase the contact area with the sewage, and improve the chemical mixing efficiency.

[0053] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sewage treatment device for a garbage transfer vehicle, comprising a sewage treatment box (1) and an interception net (3); an upper end of the sewage treatment box (1) is bent outward and integrally formed with a mounting edge (2) having a perforation and a sealing strip groove; a bottom of the sewage treatment box (1) is connected to a drainage pipe (6); Its characteristics are: An interception net (3) is movably installed inside the sewage treatment box (1) by utilizing an elastic structure (12); an outer wall of the sewage treatment box (1) is provided with an electric control agent box (7); an output end of a high-pressure pump in an agent area in the electric control agent box (7) is connected to a agent main pipe (8) by utilizing a pipeline; the other end of the agent main pipe (8) is connected to an annular agent pipe (5); the annular agent pipe (5) is embedded in an arc-shaped groove at the top of the outer ring wall of the sewage treatment box (1); a side wall of the annular agent pipe (5) is connected to a plurality of agent branch pipes (9); the outlet end of the agent branch pipe (9) is located above the interception net (3); a side wall of the sewage treatment box (1) away from the electric control agent box (7) is provided with an inspection slot (1-3) corresponding to the position of the interception net (3); The outlet end of the medicine branch pipe (9) is connected to a sealing end cover (10) by means of a plurality of springs (11), and the inner end surface of the sealing end cover (10) is extruded with the outlet of the medicine branch pipe (9); the inner end surface of the sealing end cover (10) is integrally formed with a plurality of guide ribs (16), and the plurality of guide ribs (16) are distributed circumferentially to form a conical structure with the center protruding toward the inside of the medicine branch pipe (9); the outlet end surface of the medicine branch pipe (9) is provided with a plurality of rib embedding grooves (9-1) that are embedded in cooperation with the guide ribs (16); The elastic structure (12) comprises: An electromagnet (12-1) is installed in a buffer installation groove (1-2) provided on the inner ring wall of a sewage treatment box (1); an interception net (3) can be located in the buffer installation groove (1-2) and shake up and down. During the shaking process, part of the sewage containing a paste-like substance with a large viscosity formed by fiber or granular impurities enters the maintenance slot (1-3) from the frame position of the interception net (3), and then flows into the sewage treatment box (1) through the gap between the bottom of the interception net (3) and the buffer installation groove (1-2). Then, under the shaking action, the sewage collides and shears with the interception net (3) up and down or left and right, thereby further achieving mixing of the sewage and the agent, and dispersion of the paste-like substance in the sewage; the electric control circuits of the plurality of electromagnets (12-1) are all arranged inside the side wall of the sewage treatment box (1), and finally pass through the side wall of the sewage treatment box (1) and the electric control agent box (7), and are electrically connected to the electric control area in the electric control agent box (7); Spring 1 (12-2), the upper end of the spring 1 (12-2) is connected to the electromagnet (12-1), and the lower end is connected to the iron ring (12-3); Spring 2 (12-4), the upper end of the spring 2 (12-4) is connected to the iron ring (12-3), and the lower end is connected to the limit pressure plate (12-5), and the limit pressure plate (12-5) is movably pressed on the mesh portion of the interception net (3); The sewage treatment box (1) is mounted to the bottom of the filler using the mounting edge (2) and is sealed and connected using bolts and sealing rings. When the garbage is sent into the vehicle compartment for squeezing, the sewage falls into the sewage treatment box (1) from the opening at the bottom of the filler. At the same time, the high-pressure pump in the electronically controlled reagent box (7) is started to send the reagent into the annular reagent pipe (5) and into the sewage treatment box (1) at high pressure through multiple reagent branches (9). The reagent enters the sewage. During the transportation process, the vehicle bumps, driving the interception net (3) to shake up and down under the action of the elastic structure (12), thereby achieving vibration mixing of the sewage and the reagent. The reagent disperses the viscous paste formed by fiber or granular impurities contained in the sewage. After arriving at the destination, the drain valve on the drain pipe (6) is opened to discharge the sewage treated with the reagent.

2. A sewage treatment device for a garbage transfer vehicle according to claim 1, characterized in that: The inner bottom wall of the sewage treatment box (1) is provided with a drainage slope (1-1), and the drainage pipe (6) is connected to the lowest position of the drainage slope (1-1).

3. The sewage treatment device for a garbage transfer vehicle according to claim 1, characterized in that: An inspection end cover (4) is sealed and installed at the inspection slot (1-3) using a plurality of screws.

4. A sewage treatment device for a garbage transfer vehicle according to claim 3, characterized in that: A sealing rubber plug (14) is installed on the inner side wall of the inspection end cover (4), and the sealing rubber plug (14) is squeezed and arranged in the inspection slot (1-3).

5. The sewage treatment device for a garbage transfer vehicle according to claim 4, characterized in that: A plurality of handles (13) are installed on the side wall of the frame of the intercepting net (3), corresponding to the maintenance slot (1-3).

6. The sewage treatment device for a garbage transfer vehicle according to claim 5, characterized in that: A guide plate (15) that is in movable contact with the handle (13) is embedded in the inner side wall of the sealing rubber plug (14) at a position corresponding to the handle (13).

7. The sewage treatment device for a garbage transfer vehicle according to claim 1, characterized in that: The outlet end surface of the medicine branch pipe (9) is provided with a plurality of mounting holes (9-2) for embedding the supply spring three (11) at a position away from the ridge embedding groove (9-1).

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