A spraying device for fire extinguishers and a spraying method thereof

Abstract

The present application relates to the technical field of fire extinguisher spraying, and particularly relates to a spraying device for fire extinguishers, which comprises a machine body with a spraying chamber, a curing room, a feeding chamber and a turning-back chamber, a conveying mechanism and a feeding device, wherein the feeding device has at least a supporting mode and a dust collection mode; in the supporting mode, the feeding device forms at least a supporting area for placing the bottom of a fire extinguisher bottle, the fire extinguisher bottle can be placed on the supporting area and hung by a lifting tool in the feeding chamber; in the dust collection mode, the feeding device forms at least a dust removal cavity for the fire extinguisher bottle to enter, the fire extinguisher bottle can enter or leave the dust removal cavity in the process of being hung and moved by the lifting tool; the feeding device can not only assist the feeding of the fire extinguisher bottle, but also can remove dust from the fire extinguisher bottle in the process of conveying the fire extinguisher bottle, so that the effect of spraying is ensured.

Description

Technical Field

[0001] This invention relates to the field of fire extinguisher spraying technology, and particularly to a fire extinguisher spraying device and spraying method. Background Technology

[0002] Fire extinguishers are common fire-fighting equipment. They are available in various public places or places where fires are prone to occur in case of emergency. Nowadays, different types of extinguishing agents are available according to different causes of fires, and these different types of fire extinguishers make up different categories of fire extinguishers (such as dry powder fire extinguishers, foam fire extinguishers, etc.).

[0003] Currently, after the fire extinguisher cylinders are formed but before filling, they are usually coated to improve their quality and visibility. However, the current coating process requires the cylinders to be sent to a cleaning chamber for air blowing before being transported and coated in the spray booth. While this method can reduce impurities on the cylinders, it still has the following shortcomings:

[0004] Firstly, the large space of the cleaning room makes it easy to have blind spots when cleaning fire extinguisher cylinders, resulting in poor cleaning effect.

[0005] Secondly, during the loading process after cleaning (referring to the process of attaching the fire extinguisher bottle to the lifting device) and the subsequent transportation process (before entering the spraying chamber), there is a problem that impurities are re-adsorbed onto the fire extinguisher bottle.

[0006] In summary, the aforementioned defects will all affect the spraying effect of fire extinguishers, and therefore urgently need to be improved. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a spraying device and spraying method for fire extinguishers, which aims to solve the problems mentioned in the background art.

[0008] The technical solution of the present invention is implemented as follows: a fire extinguisher spraying device, comprising:

[0009] The machine body includes a spray booth and an oven;

[0010] The spray nozzle is located in the spray chamber and sprays the fire extinguisher bottle.

[0011] The conveying mechanism is capable of conveying several lifting devices for suspending fire extinguisher cylinders and driving each lifting device through the spray booth and baking room;

[0012] The feature is that the machine body is composed of a main body and a sub-body, wherein the sub-body has a loading chamber communicating with the spraying chamber and a turning chamber communicating with the loading chamber, and a loading device capable of circulating between the loading chamber and the turning chamber is provided on the sub-body;

[0013] The feeding device has at least a support mode and a dust suction mode;

[0014] In the aforementioned support mode, the feeding device at least forms a support area for placing the bottom of the fire extinguisher bottle, which can be placed on the support area and suspended by a hoist in the feeding chamber;

[0015] In the dust collection mode, the feeding device forms at least a dust collection chamber for the fire extinguisher bottle to enter, and the fire extinguisher bottle can enter or leave the dust collection chamber while being suspended and moved by the lifting device.

[0016] By adopting the above technical solution:

[0017] This invention features a feeding device at the entrance of the spraying chamber of the spraying apparatus. This feeding device not only assists in feeding the fire extinguisher bottle, but also performs a comprehensive cleaning of the fire extinguisher bottle before it enters the spraying chamber. This not only provides a high cleaning effect, but also eliminates the need for a conveying process before the bottle enters the spraying chamber after cleaning. Therefore, it prevents the fire extinguisher bottle from re-adsorbing impurities, thus ensuring the effectiveness of the spraying.

[0018] Preferably, the feeding device includes:

[0019] The sprocket structure consists of several sprockets that are rotatably spaced on the auxiliary body;

[0020] The chain is connected between the sprockets and can circulate in the loading chamber and the turnaround chamber;

[0021] Several bases are installed at intervals on the chain and can move with the chain;

[0022] The dust collector is installed on the base and has a dust collection chamber;

[0023] The support body moves up and down within the dust removal chamber and has a dust discharge port;

[0024] The dust removal chamber can be supplied with air by the air supply system, and the support body can be driven to rise and fall by the driver.

[0025] When the support rises and protrudes from the top of the dust removal chamber, a support area is formed at the top of the dust removal chamber for placing fire extinguisher bottles.

[0026] When the support body descends and is located at the bottom of the dust removal chamber, the dust removal chamber is opened and the fire extinguisher bottle is allowed to enter.

[0027] Preferably, the dust collector comprises:

[0028] The first body has the dust removal chamber;

[0029] A filter screen is installed inside the dust removal chamber, which divides the dust removal chamber into an inner chamber and an outer chamber.

[0030] An air inlet is installed on the side wall of the first body and communicates with the outer cavity;

[0031] The support includes:

[0032] The second body is controlled by the driver to move up and down within the cavity;

[0033] A support platform is formed on top of the second body and can be exposed from the top of the dust removal chamber when the second body rises.

[0034] By adopting the above technical solution:

[0035] The feeding device of the present invention consists of a support body and a dust removal body, both of which are mounted on a base. The base can be moved by a chain, thus enabling the dust removal body and the support body to move along with the fire extinguisher bottle.

[0036] During the feeding process, the support body rises and moves out of the dust collector. The support platform formed on the top of the support body can be used to place the fire extinguisher bottle. Therefore, the fire extinguisher bottle can be placed on the support body to complete the feeding work. The fire extinguisher bottle can be coordinated with the lifting device in the feeding chamber (this is the prior art, see the embodiment section), thereby assisting in the feeding of the fire extinguisher bottle (feeding, i.e., the process of coordinating the fire extinguisher bottle with the lifting device).

[0037] During the movement of the fire extinguisher bottle by the lifting device, it can drive the fire extinguisher bottle into the dust removal chamber (inner cavity) of the dust removal body. The fire extinguisher bottle can complete the dust removal work from multiple angles in the inner cavity, and after dust removal, it leaves the dust removal chamber and is then controlled by the lifting device to directly enter the spraying chamber for spraying work.

[0038] In the process of cleaning fire extinguisher bottles according to the present invention, the gas can be filtered through a filter screen before being sprayed onto the fire extinguisher bottle, thereby ensuring the cleanliness of the gas used to clean the fire extinguisher bottle.

[0039] Preferably, the first body has a first cleaning port communicating with the outer cavity, the second body has a second cleaning port communicating with the inner cavity, and the base has a cleaning mechanism capable of cleaning the outer cavity and / or the inner cavity through the first cleaning port and / or the second cleaning port, wherein the cleaning mechanism includes:

[0040] The dust extraction chamber is formed within the base and consists of a first dust extraction chamber and a second dust extraction chamber that are interconnected.

[0041] The dust extraction body consists of a first dust extraction body that moves within the first dust extraction chamber and a second dust extraction body that moves within the second dust extraction chamber;

[0042] The reset spring consists of a first reset spring disposed in the first dust extraction chamber and a second reset spring disposed in the second dust extraction chamber;

[0043] The drive shaft moves within the first dust extraction chamber, with one end extending out of the first dust extraction chamber;

[0044] The dust discharge pipe consists of a first dust discharge pipe connected to the first dust extraction chamber and a second dust discharge pipe connected to the second dust extraction chamber.

[0045] The first dust extraction chamber is connected to the second cleaning port through the first dust extraction pipe, and the second dust extraction chamber is connected to the first cleaning port through the second dust extraction pipe. A one-way valve is provided on the first dust extraction pipe, the second dust extraction pipe, the first dust discharge pipe and the second dust discharge pipe.

[0046] When the first dust extraction body and / or the second dust extraction body are controlled by the drive shaft to move within the first dust extraction chamber and / or the second dust extraction chamber, the first dust extraction body and / or the second dust extraction body can discharge the impurities in the first dust extraction chamber and / or the second dust extraction chamber through the dust discharge pipe.

[0047] When the first dust extraction body and / or the second dust extraction body are reset by the reset spring, the first dust extraction chamber and / or the second dust extraction chamber can draw impurities from the outer cavity and / or the inner cavity into the first dust extraction chamber and / or the second dust extraction chamber through the first dust extraction pipe and / or the second dust extraction pipe.

[0048] Preferably, the auxiliary body is further provided with a guide rail structure for the drive shaft end to move, wherein the guide rail structure includes:

[0049] Guide rail body;

[0050] Fixed body;

[0051] The guide rail is fixed to the auxiliary body by a fixing body, and the guide rail consists of a straight section guide area and a wave section guide area.

[0052] By adopting the above technical solution:

[0053] The present invention has a cleaning mechanism on the base. The cleaning mechanism can be controlled by the wave section guide area of ​​the guide rail structure. When it is started, it will remove impurities from the inner and outer cavities of the dust removal chamber to ensure the cleanliness of the dust removal chamber and avoid affecting the cleaning process of the next fire extinguisher bottle.

[0054] The cleaning mechanism of the present invention is operated in the turnaround chamber. Furthermore, the position of the support body and the dust removal body is changed during the cleaning process, which can not only form a support area for placing fire extinguisher bottles on the top of the cleaning device, but also clean the dust removal chamber. Therefore, when the feeding device leaves the turnaround chamber, it does not delay the placement of the fire extinguisher bottles on the support body.

[0055] In addition, the present invention cleans the inner cavity and the outer cavity separately, and uses airflow entering the outer cavity to assist in the cleaning, thereby improving the cleaning effect of the inner cavity and the outer cavity.

[0056] Preferably, a clamping structure is formed on the top of the first body, wherein the clamping structure includes:

[0057] The clamping plate is rotatably mounted on the top of the first body via a pivot.

[0058] Driven gears are mounted on each rotating shaft;

[0059] The drive gear is rotatably mounted on the top of the first body;

[0060] The drive gear ring is coaxially arranged with the first body and has an internal gear ring that meshes with each driven gear and an external gear ring that meshes with the drive gear.

[0061] The support groove consists of a first support groove formed on the drive gear and a second support groove formed on the drive gear ring;

[0062] The support rod consists of a first support rod disposed on the first body and movable within the first support groove, and a second support rod disposed on the first body and movable within the second support groove;

[0063] The drive gear is provided with a longitudinally penetrating threaded drive cavity, and a lifting shaft that can pass through the threaded drive cavity is provided in the first body, and a threaded drive shaft adapted to the threaded drive cavity is provided on the lifting shaft.

[0064] The clamping plate has at least a first clamping edge for clamping a fire extinguisher bottle and a second clamping edge for clamping a lifting device.

[0065] Preferably, the clamping plate has an air jet chamber supplied by the air supply system, and a plurality of air jet holes communicating with the air jet chamber are formed on the clamping plate.

[0066] By adopting the above technical solution:

[0067] To ensure the stability of the fire extinguisher bottle placed on the feeding device (i.e., the support body), this invention incorporates a clamping structure. This clamping structure can both hold the fire extinguisher bottle (improving its stability on the support body) and hold the lifting device when the fire extinguisher bottle enters the dust removal chamber (preventing the lifting device from shaking during the dust removal process, thus ensuring the cleaning effect of the fire extinguisher bottle).

[0068] Furthermore, the present invention also provides air jet holes on the clamping plates of the clamping structure. The airflow ejected from the air jet holes can assist the impurities in the dust removal chamber to flow to the bottom of the dust removal chamber, thereby achieving the purpose of "dust settling" (dust settling in the present invention refers to the sinking of impurities).

[0069] Furthermore, the present invention also provides a method for spraying a fire extinguisher, which uses the spraying device described above, and includes the following steps:

[0070] S1 Loading: The fire extinguisher bottle is placed in each support area of ​​the loading device and clamped by the first clamping edge of the clamping structure. It is then conveyed into the loading chamber by the loading device. The conveying mechanism keeps the lifting device and the fire extinguisher bottle on the same vertical line and drives the lifting device to descend. The lifting device is inserted into the mouth of the fire extinguisher bottle and fixes the fire extinguisher bottle, thus completing the loading operation.

[0071] S2 spraying: The conveying mechanism transports fire extinguisher cylinders into the spraying chamber via a hoist, where they are sprayed by the spray head;

[0072] S3 Drying: The fire extinguisher bottles sprayed in the spray booth are transported to the drying room by the conveying mechanism, and leave the drying room after drying, completing the spraying work of the fire extinguisher bottles;

[0073] Prior to step S2, the fire extinguisher bottle can be fed into the dust removal chamber by the lifting device of the conveying mechanism, and dust removal work is carried out in the dust removal chamber.

[0074] Furthermore, during the dust removal process of the fire extinguisher bottle entering the dust removal chamber, it undergoes the following dust removal steps in sequence, which include:

[0075] P1: When the fire extinguisher bottle on the support area of ​​the feeding device is removed by the lifting device, the support body is lowered by the drive and forms a dust removal chamber in the dust removal body;

[0076] P2: After the fire extinguisher bottle is controlled by the lifting device to enter the dust removal chamber, it maintains the same traveling speed as the feeding device. Then, the second clamping edge of the control clamping structure clamps the lifting device, and at the same time, the clamping structure is used to seal the top of the dust removal chamber.

[0077] P3: The gas supply system supplies gas to the dust removal chamber and the jet chamber respectively. The gas entering the dust removal chamber is filtered by the filter screen and sprayed onto the circumferential outer wall of the fire extinguisher bottle. The gas entering the jet chamber is ejected from the jet hole and transports the impurities falling from the fire extinguisher bottle towards the dust discharge port, thus completing the dust removal and / or dust settling work.

[0078] P4: After step P3 is completed, the support rises and opens the clamping structure in the process. Then, the fire extinguisher bottle leaves the dust removal chamber under the control of the hoist and is controlled by the conveying mechanism to enter the spraying chamber.

[0079] Furthermore, after step P4 is completed, the feeding device enters the turnaround chamber via the feeding chamber for a self-cleaning step, which includes:

[0080] L1: When the feeding device enters the return chamber, the support body is controlled by the driver to rise and close the top of the dust removal chamber. At the same time, a support area is formed on the top of the feeding device and it waits for the bottle to be loaded.

[0081] L2: When the feeding device passes through the wave section guide area of ​​the guide rail structure, the drive shaft is controlled by the wave section guide area to perform reciprocating extension and retraction work. When the drive shaft extends and retracts, it works with the return spring to drive the dust extraction body in the dust extraction chamber to perform dust extraction and dust removal work.

[0082] In step L2, when the drive shaft passes through the wave section guide area, it first retracts and squeezes the first dust extraction body and the second dust extraction body to discharge the material in the first dust extraction chamber and the second dust extraction chamber respectively. Then it extends and is reset by the reset spring. The first dust extraction body and the second dust extraction body are then removed from the inner and outer cavities through the first dust extraction chamber and the second dust extraction chamber.

[0083] During the process of removing impurities from the outer and inner cavities, the gas supply system supplies gas to the outer or inner cavity and flows around the inner and / or outer cavity, thereby carrying away the impurities in the inner and / or outer cavities.

[0084] By adopting the above technical solution:

[0085] In this invention, after the fire extinguisher bottle enters the dust removal chamber, the clamping structure is used to clamp the lifting device, which not only improves stability, but also sets step P2 (including clamping the lifting device) after step P1 and before step P3. During this process, the operation of the lifting device can rely entirely on the feeding device, thereby eliminating the need for the conveyor belt with protrusions, and thus also reducing energy consumption (see the embodiment section).

[0086] Furthermore, other advantages of the present invention will be demonstrated in the embodiments section of the present invention, thereby making the beneficial effects of the present invention even more significant. Attached Figure Description

[0087] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0088] Figure 1 This is a schematic diagram of the structure of a specific embodiment 1 of the present invention;

[0089] Figure 2 This is a schematic diagram of the conveying mechanism in specific embodiment 1 of the present invention;

[0090] Figure 3 This refers to the lifting device structure in specific embodiment 1 of the present invention;

[0091] Figure 4 for Figure 1 AA section view in the middle;

[0092] Figure 5 This is a schematic diagram of the feeding device in specific embodiment 1 of the present invention;

[0093] Figure 6 This is a schematic diagram of the conveying guide rail in specific embodiment 1 of the present invention;

[0094] Figure 7 This is a schematic diagram of the feeding device in specific embodiment 2 of the present invention;

[0095] Figure 8 This is a schematic diagram of the cleaning structure in specific embodiment 2 of the present invention;

[0096] Figure 9 This is an extended schematic diagram of the auxiliary fuselage inner guide rail structure in specific embodiment 2 of the present invention;

[0097] Figure 10 for Figure 7 BB section view in the middle;

[0098] Figure 11 for Figure 10 Another state diagram;

[0099] Figure 12 This is a schematic diagram of the internal drive thread cavity of the drive gear in specific embodiment 2 of the present invention. Detailed Implementation

[0100] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0101] like Figure 1-6 As shown, the present invention discloses a spraying device for a fire extinguisher, comprising:

[0102] The machine body 1 has a spray booth 10 and an oven 11;

[0103] The spray head is located inside the spray chamber 10 and sprays the fire extinguisher bottle.

[0104] The conveying mechanism is capable of conveying several lifting devices for suspending fire extinguisher bottles and driving each lifting device through the spray booth 10 and the baking room 11.

[0105] In this embodiment, reference Figure 2 The conveying structure consists of a conveying guide rail 2 and a drive mechanism mounted on the body 1. The conveying guide rail 2 includes a first conveying guide rail 21 and a second conveying guide rail 22. An active area 23 for the lifting device to move is formed between the first conveying guide rail 21 and the second conveying guide rail 22. A drive area 24 for the drive mechanism to move is provided on the first conveying guide rail 21 and the second conveying guide rail 22.

[0106] In this embodiment, the lifting device includes:

[0107] Rod body 200;

[0108] The sliding part 201 is provided at the top of the rod 200 and can move in the movable area 23 of the conveying guide rail 2;

[0109] The suspension unit consists of a suspension plate 202 that is rotatably connected to the bottom of the rod 200;

[0110] The limiting part 203 is provided on the rod 200 and is located at the bottom of the suspension piece 202.

[0111] In use, the rod 200 is inserted into the mouth of the fire extinguisher bottle. The suspension plate 202 is resisted by the edge of the mouth of the fire extinguisher bottle, so it rotates upward at the rotating part 202a, so that the rod 200 is inserted into the fire extinguisher bottle. After the rod 200 is inserted, the suspension plate 202 unfolds and contacts the inner wall of the fire extinguisher bottle, thereby fixing it to the fire extinguisher bottle, thus achieving the purpose of suspending and transporting the fire extinguisher bottle.

[0112] refer to Figure 2 In this embodiment, the driving mechanism includes:

[0113] Belt pulley 30;

[0114] The drive belt 31 is connected between the pulleys 30 for transmission.

[0115] The drive block 32 is spaced on the drive belt 31 and can move in the drive area 24 of the conveying guide rail 2, and is used to move the sliding part 201 of the hanger on the conveying guide rail 2.

[0116] In this embodiment, the machine body 1 is composed of a main body (with a spraying chamber 10 and a baking chamber 11) and a secondary body 1a. The secondary body 1a has a loading chamber 40 communicating with the spraying chamber 10 and a turning chamber 41 communicating with the loading chamber 40. A loading device that can circulate between the loading chamber 40 and the turning chamber 41 is provided on the secondary body 1a.

[0117] The feeding device has at least a support mode and a dust suction mode;

[0118] In the support mode, the feeding device forms at least a support area for placing the bottom of the fire extinguisher bottle, which can be placed on the support area and suspended by a lifting device in the feeding chamber 40.

[0119] In the dust collection mode, the feeding device forms at least a dust collection chamber for the fire extinguisher bottle to enter, and the fire extinguisher bottle can enter or leave the dust collection chamber while being suspended and moved by the lifting device.

[0120] In this embodiment, the feeding device includes:

[0121] The sprocket structure consists of several sprockets 50 that are rotatably spaced on the auxiliary fuselage 1a;

[0122] The chain 51 is connected between each sprocket 50 and can circulate between the loading chamber 40 and the return chamber 41;

[0123] Several bases 52 are installed at intervals on the chain 51 and can move with the chain 51.

[0124] refer to Figure 1 In this embodiment, when the sprocket is driven by a motor (not shown, but can be installed in the auxiliary body 1a in this embodiment), it drives the chain control base to circulate in the loading chamber 40 and the turning chamber 41.

[0125] In this embodiment, the auxiliary body 1a is provided with a connecting area 1b that connects the loading chamber 40 and the turnaround chamber 41.

[0126] refer to Figure 5In this embodiment, in addition to the conveying part formed by the sprocket structure, the feeding device also has an auxiliary part for the fire extinguisher bottle that forms the aforementioned support area and dust removal chamber, which includes:

[0127] The dust collector 60 is mounted on the base 52 and has a dust collection chamber;

[0128] The support body moves up and down within the dust removal chamber and has a dust discharge port 61a;

[0129] The dust removal chamber can be supplied with air by the air supply system, and the support body can be driven to rise and fall by the driver 61b.

[0130] When the support rises and protrudes from the top of the dust removal chamber, a support area is formed at the top of the dust removal chamber for placing fire extinguisher bottles.

[0131] When the support body descends and is located at the bottom of the dust removal chamber, the dust removal chamber is opened and the fire extinguisher bottle is allowed to enter.

[0132] In this embodiment, the dust collector 60 includes:

[0133] The first body 600 has the dust removal chamber;

[0134] The filter screen 601 is located inside the dust removal chamber, and divides the dust removal chamber into an inner chamber 601a and an outer chamber 601b;

[0135] The air inlet 602 is installed on the side wall of the first body 600 and communicates with the outer cavity 601b;

[0136] The support includes:

[0137] The second body 610 is controlled by the driver 61b (electric strut) to move up and down in the inner cavity 601a;

[0138] A support platform 611 is formed on the top of the second body 610 and can be exposed from the top of the dust removal chamber when the second body 610 rises. The dust discharge port 61a is provided on the support platform 611.

[0139] In this embodiment, there are multiple air inlets 602, which are distributed on the outside of the first body 600 and can be supplied with air. The dust outlet 61a can be connected to the dust pump through the air pipe 61c to perform dust extraction.

[0140] In this embodiment, the air supply system is an air pump, which is used to supply air to each air inlet 602.

[0141] like Figure 5 The dust collector shown is installed as follows Figure 1 The base shown has its dust removal chamber top opening facing upwards, which is used to receive fire extinguisher bottles or to place fire extinguisher bottles when the support platform is raised.

[0142] To better illustrate this embodiment, it will be described in the following parts:

[0143] First, the loading operation in this embodiment is carried out in the turnaround chamber. The loading is completed by simply placing the fire extinguisher bottle on the support platform. During this process, there is no direct contact with the lifting equipment, which saves the time of removing the lifting equipment and coordinating it with the fire extinguisher bottle.

[0144] Second, when the fire extinguisher is placed on the support platform (at which time the drive controls the support platform to rise and is located at the opening of the dust removal chamber), the dust removal body moves from the return chamber to the loading chamber under the control of the sprocket structure, and the lifting device cooperates with the fire extinguisher bottle in the loading chamber.

[0145] It should be noted that the conveyor rails in this embodiment are divided into the following types: Figure 6 The six segments shown (g1-g6, in which the lifting device can be controlled to move by the drive mechanism shown in this embodiment) are as follows: g1-g4 are the extended states of the conveying guide rail in the loading chamber, g5 is the extended state of the conveying guide rail at the junction of the loading chamber and the spraying chamber, and g6 is the extended state of the conveying guide rail in the spraying chamber and the baking chamber. g1-g6 reflect the height change of the conveying guide rail. In this embodiment, when the fire extinguisher bottle is engaged with the lifting device in the loading chamber, the lifting device moves from position g1 to position g2. Due to the height change, the lower end of the lifting device gradually approaches the fire extinguisher bottle until it is inserted into the fire extinguisher bottle, thereby completing the engagement between the lifting device and the fire extinguisher bottle.

[0146] Third, after the fire extinguisher bottle is engaged with the lifting device, the driver controls the support platform to descend. The bottom of the fire extinguisher bottle loses support and the bottle opening is completely fixed by the lifting device due to gravity. Then, the fire extinguisher bottle enters the dust removal chamber through stages g3 to g4. After entering the dust removal chamber, the air supply pump starts and supplies air into the dust removal chamber through the air inlet to clean the fire extinguisher bottle.

[0147] It is worth noting that the gas entering the dust removal chamber is filtered by a filter screen before entering the inner chamber, reducing the impurity content of the gas blown towards the fire extinguisher bottle and ensuring the cleaning effect. The cleaned impurities are discharged through the dust outlet and the dust pump, thus completing the cleaning work.

[0148] Fourth, after the fire extinguisher bottle is cleaned, the lifting device moves from stage g4 to stage g5. The lifting device rises and causes the fire extinguisher bottle to leave the dust removal chamber. Then the dust removal body enters the return chamber from the connecting area from the feeding chamber. During this process, the support body is driven to rise again to prepare for bottle filling.

[0149] It is worth mentioning that:

[0150] The purpose of placing the dust outlet on the support platform is not only to discharge impurities from the inner cavity, but also to activate the dust pump when the fire extinguisher bottle is placed on the support platform. The dust pump will then suck up the fire extinguisher bottle located on the support platform through the dust outlet, thereby improving the stability of the fire extinguisher bottle.

[0151] Secondly, in this embodiment, the sprocket structure drives the dust collector to run at the same speed as the lifting device on the conveying guide rail, so as to avoid collision between the fire extinguisher bottle and the dust collector.

[0152] Example 2 differs from Example 1 in that...

[0153] like Figure 7-8 As shown, in this embodiment: the first body 600 is provided with a first cleaning port 71 communicating with the outer cavity 601b, the second body 610 is provided with a second cleaning port 72 communicating with the inner cavity 601a, and the base 52 is provided with a cleaning mechanism that can clean the outer cavity 601b and / or the inner cavity 601a through the first cleaning port 71 and / or the second cleaning port 72.

[0154] In this embodiment, since the filter screen filters the gas entering the inner cavity from the outer cavity (this gas enters the outer cavity from the air inlet), it is necessary to clean the outer cavity in a timely manner to ensure the cleanliness of the outer cavity and the filtering effect of the filter screen. In addition, as the main dust removal area of ​​the fire extinguisher, the inner cavity will also accumulate impurities on the support body (or the second body). Therefore, in order to avoid the cleaning effect of the inner cavity on the fire extinguisher bottle, it is also necessary to clean the inner cavity.

[0155] To better describe the cleaning structure of this embodiment, the cleaning structure and the dust removal body are described separately. (Refer to...) Figure 7-8 The cleaning mechanism in this embodiment includes:

[0156] The dust extraction chamber is formed within the base 52 and consists of a first dust extraction chamber 81 and a second dust extraction chamber 82 that are interconnected.

[0157] The dust extraction body is composed of a first dust extraction body 821 that moves in the first dust extraction chamber 81 and a second dust extraction body 822 that moves in the second dust extraction chamber 82.

[0158] The reset spring consists of a first reset spring 831 disposed in the first dust extraction chamber 81 and a second reset spring 832 disposed in the second dust extraction chamber 82.

[0159] The drive shaft 84 is movable within the first dust extraction chamber 81, and one end extends out of the first dust extraction chamber 81;

[0160] The dust discharge pipe is composed of a first dust discharge pipe 851 connected to the first dust extraction chamber 81 and a second dust discharge pipe 852 connected to the second dust extraction chamber 82.

[0161] The first dust extraction chamber 81 is connected to the second cleaning port 72 through the first dust extraction pipe 811, and the second dust extraction chamber 82 is connected to the first cleaning port 71 through the second dust extraction pipe 812. A one-way valve 86 is provided on the first dust extraction pipe 811, the second dust extraction pipe 812, the first dust discharge pipe 851 and the second dust discharge pipe 852.

[0162] When the first dust extraction body 821 and / or the second dust extraction body 822 are controlled by the drive shaft 84 to move within the first dust extraction chamber 81 and / or the second dust extraction chamber 82, the first dust extraction body 821 and / or the second dust extraction body 822 can discharge the impurities in the first dust extraction chamber 81 and / or the second dust extraction chamber 82 through the dust discharge pipe.

[0163] When the first dust extraction body 821 and / or the second dust extraction body 822 are reset by the reset spring, the first dust extraction chamber 81 and / or the second dust extraction chamber 82 can draw impurities from the outer cavity 601b and / or the inner cavity 601a into the first dust extraction chamber 81 and / or the second dust extraction chamber 82 through the first dust extraction pipe 811 and / or the second dust extraction pipe 812.

[0164] In this embodiment: the auxiliary fuselage 1a is also provided with a guide rail structure for the end of the drive shaft 84 to move, for reference. Figure 9 Therefore, the guide rail structure of this embodiment includes:

[0165] Guide rail body 91;

[0166] Fixing body 92;

[0167] The guide rail 91 is fixed to the sub-body 1a by the fixing body 92, and the guide rail 91 is composed of a straight section guide area and a wave section guide area. The end of the drive shaft 84 is slidably connected to the guide rail 91. In this embodiment, the end of the drive shaft 84 may be provided with a clamping sliding part 84a, which cooperates with the guide rail 91 and makes the drive shaft 84 slidably connected to the guide rail 91.

[0168] like Figure 7 As shown in Figures 10-11, in this embodiment: a clamping structure is formed on the top of the first body, wherein the clamping structure includes:

[0169] The clamping piece 930 is rotatably mounted on the top of the first body 600 via a pivot 931;

[0170] Driven gear 932 is mounted on each rotating shaft 931;

[0171] The drive gear 933 is rotatably mounted on the top of the first body 600;

[0172] The drive gear ring 934 is coaxially arranged with the first body 600 and has an internal gear ring that meshes with each driven gear 932 and an external gear ring that meshes with the drive gear 933.

[0173] The support groove consists of a first support groove 941 formed on the drive gear 933 and a second support groove 942 formed on the drive gear ring 934;

[0174] The support rod consists of a first support rod 951 disposed on the first body 600 and movable in the first support groove 941, and a second support rod 952 disposed on the first body 600 and movable in the second support groove 942. In this embodiment, the drive gear and the drive gear ring can rotate through the cooperation of the support rod and the support groove.

[0175] The drive gear 933 is provided with a longitudinally penetrating threaded drive cavity 96, and a lifting shaft 97 that can pass through the threaded drive cavity 96 is provided in the first body 600 (in this embodiment, the lifting shaft 97 is connected to the second body, thereby eliminating the need for a driver to drive the lifting shaft and ensuring the synchronicity of the second body and the clamping structure). The lifting shaft 97 is provided with a threaded drive shaft that is adapted to the threaded drive cavity 96.

[0176] The clamping plate 930 has at least a first clamping edge 930a for clamping a fire extinguisher bottle and a second clamping edge 930b for clamping a lifting device.

[0177] In this embodiment: a jet chamber supplied by the air supply system is formed in the clamping plate 930, and a plurality of jet holes communicating with the jet chamber are formed on the clamping plate. The jet holes are located on the side of the clamping plate 930 near the dust removal chamber and are used to supply air into the dust removal chamber.

[0178] In this embodiment, the flow direction of the gas delivered into the outer cavity by the air inlet 602 is tangent to the outer wall of the filter screen in the dust removal chamber.

[0179] like Figure 7 As shown, in this embodiment, the threaded drive shaft consists of an upper threaded drive shaft 98a and a lower threaded drive shaft 98b located on the lifting shaft 97.

[0180] like Figure 12As shown, in this embodiment, the threaded drive cavity 96 consists of a first threaded cavity 96a adapted to the upper threaded drive shaft 98a and a second threaded cavity 96b adapted to the lower threaded drive shaft 98b. The diameter of the second threaded cavity 96b is larger than the diameter of the first threaded cavity 96a. When the lifting shaft rises, the upper threaded drive shaft 98a engages with the first threaded cavity 96a and drives the drive gear to rotate counterclockwise. Through the clockwise rotating gear ring, the clamping pieces rotate clockwise and separate from each other. Similarly, when the lifting shaft descends, the upper threaded drive shaft 98a engages with the first threaded cavity 96a and drives the clamping pieces to move closer to each other. When the lifting shaft rises and the lower threaded drive shaft 98b enters the second threaded cavity 96b, it can control the drive gear to rotate clockwise and drive the clamping pieces to move closer to each other. Similarly, when the lifting shaft descends and the lower threaded drive shaft gradually leaves the second threaded cavity 96b, the clamping pieces will separate again.

[0181] In this embodiment, the dust removal chamber (inner cavity) is composed of a first cavity 99a with a larger diameter and a second cavity 99b with a smaller diameter than the first cavity 99a.

[0182] Furthermore, this embodiment also provides a method for spraying a fire extinguisher, which uses the spraying device of this embodiment and includes the following steps:

[0183] S1 Loading: The fire extinguisher bottle is placed in each support area of ​​the loading device and clamped by the first clamping edge of the clamping structure. It is then conveyed into the loading chamber by the loading device. The conveying mechanism keeps the lifting device and the fire extinguisher bottle on the same vertical line and drives the lifting device to descend. The lifting device is inserted into the mouth of the fire extinguisher bottle and fixes the fire extinguisher bottle, thus completing the loading operation.

[0184] S2 spraying: The conveying mechanism transports fire extinguisher cylinders into the spraying chamber via a hoist, where they are sprayed by the spray head;

[0185] S3 Drying: The fire extinguisher bottles sprayed in the spray booth are transported to the drying room by the conveying mechanism, and leave the drying room after drying, completing the spraying work of the fire extinguisher bottles;

[0186] Prior to step S2, the fire extinguisher bottle can be fed into the dust removal chamber by the lifting device of the conveying mechanism, and dust removal work is carried out in the dust removal chamber.

[0187] Furthermore, during the dust removal process of the fire extinguisher bottle entering the dust removal chamber, it undergoes the following dust removal steps in sequence, which include:

[0188] P1: When the fire extinguisher bottle on the support area of ​​the feeding device is removed by the lifting device, the support body is lowered by the drive and forms a dust removal chamber in the dust removal body;

[0189] P2: After the fire extinguisher bottle is controlled by the lifting device to enter the dust removal chamber, it maintains the same traveling speed as the feeding device. Then, the second clamping edge of the control clamping structure clamps the lifting device, and at the same time, the clamping structure is used to seal the top of the dust removal chamber.

[0190] P3: The gas supply system supplies gas to the dust removal chamber and the jet chamber respectively. The gas entering the dust removal chamber is filtered by the filter screen and sprayed onto the circumferential outer wall of the fire extinguisher bottle. The gas entering the jet chamber is ejected from the jet hole and transports the impurities falling from the fire extinguisher bottle towards the dust discharge port, thus completing the dust removal and / or dust settling work.

[0191] P4: After step P3 is completed, the support rises and opens the clamping structure in the process. Then, the fire extinguisher bottle leaves the dust removal chamber under the control of the hoist and is controlled by the conveying mechanism to enter the spraying chamber.

[0192] Furthermore, after step P4 is completed, the feeding device enters the turnaround chamber via the feeding chamber for a self-cleaning step, which includes:

[0193] L1: When the feeding device enters the return chamber, the support body is controlled by the driver to rise and close the top of the dust removal chamber. At the same time, a support area is formed on the top of the feeding device and it waits for the bottle to be loaded.

[0194] L2: When the feeding device passes through the wave section guide area of ​​the guide rail structure, the drive shaft is controlled by the wave section guide area to perform reciprocating extension and retraction work. When the drive shaft extends and retracts, it works with the return spring to drive the dust extraction body in the dust extraction chamber to perform dust extraction and dust removal work.

[0195] In step L2, when the drive shaft passes through the wave section guide area, it first retracts and squeezes the first dust extraction body and the second dust extraction body to discharge the material in the first dust extraction chamber and the second dust extraction chamber respectively. Then it extends and is reset by the reset spring. The first dust extraction body and the second dust extraction body are then removed from the inner and outer cavities through the first dust extraction chamber and the second dust extraction chamber.

[0196] During the process of removing impurities from the outer and inner cavities, the gas supply system supplies gas to the outer or inner cavity and flows around the inner and / or outer cavity, thereby carrying away the impurities in the inner and / or outer cavities.

[0197] like Figure 7 As shown, in order to ensure the dust removal effect on the fire extinguisher bottle, the inner and outer cavities need to be cleaned in a timely manner. Therefore, this embodiment is equipped with a cleaning mechanism, the principle of which is as follows:

[0198] like Figure 7-8 As shown, a first cleaning port and a second cleaning port are respectively provided on the first body and the second body. Impurities in the outer cavity can be discharged through the first cleaning port, while impurities in the inner cavity can be discharged through the second cleaning port.

[0199] During impurity removal, the support body is controlled to rise, sealing the opening at the top of the inner cavity. At this time, the feeding device (i.e., the dust collector) moves from the feeding chamber to the return chamber. Meanwhile, the drive shaft on the base moves along the guide rail and passes through the wave-shaped guide area of ​​the guide rail. This wave-shaped guide area allows the drive shaft to reciprocate within the dust extraction chamber. More specifically:

[0200] refer to Figure 8-9 Guided by the wave-shaped guide zone, the drive shaft initially moves towards the second dust extraction chamber due to the thrust of the wave-shaped guide zone, causing the first dust extraction body to close the first dust extraction chamber and moving the second dust extraction body to the right. Subsequently, the drive shaft is reset by the tension of the wave-shaped guide zone, and the second dust extraction body loses its thrust and is reset by the reset spring, then performs dust extraction through the second dust extraction pipe (first removing impurities from the outer cavity through the first cleaning port; during dust extraction, the air supply pump supplies air to the outer cavity through the air inlet). Because the airflow direction is tangential to the outer wall of the filter screen, the airflow flows around the filter screen. Then, it enters the second dust extraction chamber through the first cleaning port. When the drive shaft and the return spring drive the first dust extraction body to return to its original position, the first dust extraction chamber removes impurities from the inner cavity through the first dust extraction pipe and the second cleaning port. The dust extraction principle is the same as that of the outer cavity. The gas entering the outer cavity through the air inlet will enter the inner cavity through the filter screen and flow around the second body. Then, it will draw impurities from the second cleaning port into the first dust extraction chamber, completing one round of dust extraction. Therefore, guided by the wave section guide area, the drive shaft reciprocates and removes impurities from the inner and outer cavities through the repeatedly moving first and second dust extraction bodies.

[0201] It is worth mentioning that in this embodiment, each dust extraction removes impurities from the outer cavity and then removes impurities from the inner cavity. This allows the gas in the outer cavity to pass through the filter and enter the inner cavity more effectively after the filter is cleaned, thus enabling better cleaning.

[0202] In addition, such as Figure 7 , 10 As shown in Figure -12, in order to achieve more stable bottle filling, a clamping structure is provided on the top of the first body in this embodiment. This clamping structure can not only clamp the fire extinguisher bottle, but also the lifting device. The former improves the stability of the fire extinguisher bottle during filling, while the latter ensures the stability of the lifting device and prevents it from swaying when the fire extinguisher bottle is in the dust removal chamber for dust removal. Figure 10 The diagram shown is a schematic of the clamping structure clamping the lifting device. Figure 11 This is a schematic diagram illustrating how the clamping structure can hold a fire extinguisher bottle. More detailed explanation follows:

[0203] In this embodiment, after the dust removal work of the fire extinguisher bottle is completed, the driver controls the support body (second body) to rise, and through the upper thread drive shaft to cooperate with the first thread cavity, the clamping plates separate from each other and open the opening of the dust removal cavity. At this time, the fire extinguisher bottle is controlled by the lifting device to rise and leave the dust removal cavity and then enter the spraying chamber for spraying work.

[0204] The dust collector then enters the return chamber. Subsequently, the actuator controls the support to rise, positioning the support platform at the first opening of the dust collector chamber (at which point the inner cavity is already sealed). After passing through the wave-shaped guide area, the dust collector begins its self-cleaning process, while the clamping plates are also open. After passing through the wave-shaped guide area, the dust collector gradually moves to the end of the return chamber and is bottled at the end (the fire extinguisher bottle is placed on the support platform). Once the fire extinguisher bottle is placed on the support platform, the support rises again and enters the second opening. Simultaneously, the lower thread drive shaft enters the second threaded cavity, driving the clamping plates to move closer together and clamp the fire extinguisher bottle.

[0205] Subsequently, the dust collector enters the loading chamber from the return chamber for loading. During the dust removal stage, the support descends, causing the lower thread drive shaft to leave the second thread cavity (at this time, the control clamping plates separate and release the fire extinguisher bottle), allowing the fire extinguisher bottle to enter the dust removal chamber for dust removal. Once the fire extinguisher bottle has completely entered the dust removal chamber, the upper thread drive shaft moves to the opening of the first thread cavity and enters the first thread cavity, causing the clamping plates to approach again and clamp the lifting device.

[0206] In summary, this embodiment uses a clamping structure to hold the fire extinguisher bottle and the lifting device, enabling the fire extinguisher bottle to complete the dust removal and feeding processes more stably.

[0207] It is worth mentioning that, in order to improve the cleaning effect on the fire extinguisher bottle, this embodiment also provides an air jet chamber and an air jet hole on the clamping plate. When the air supply pump supplies air to the air jet chamber, the gas flows from top to bottom through the air jet hole (the air flow from the air jet hole is small to avoid dust flying in the dust removal chamber). The weak air flow from the air jet hole can help the impurities in the dust removal chamber sink.

[0208] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spraying device for a fire extinguisher, comprising: The machine body (1) has a spraying chamber (10) and a baking chamber (11); The spray nozzle is located in the spray chamber (10) and sprays the fire extinguisher bottle; The conveying mechanism is capable of conveying several lifting devices for suspending fire extinguisher bottles and driving each lifting device through the spray booth (10) and the baking room (11). The machine body (1) is characterized in that: the machine body (1) is composed of a main body and a sub-body (1a), wherein the sub-body (1a) has a loading chamber (40) communicating with the spraying chamber (10) and a turning chamber (41) communicating with the loading chamber (40), and a loading device capable of circulating between the loading chamber (40) and the turning chamber (41) is provided on the sub-body (1a); The feeding device has at least a support mode and a dust suction mode; In the support mode, the feeding device forms at least a support area for placing the bottom of the fire extinguisher bottle, which can be placed on the support area and suspended by a hoist in the feeding chamber (40); In the aforementioned dust collection mode, the feeding device forms at least a dust removal chamber for the fire extinguisher bottle to enter, and the fire extinguisher bottle can enter or leave the dust removal chamber while being suspended and moved by the lifting device. The feeding device includes: The sprocket structure consists of several sprockets (50) that are rotatably spaced on the sub-fuselage (1a); The chain (51) is connected to each sprocket (50) and can circulate in the loading chamber (40) and the turning chamber (41); Several bases (52) are installed at intervals on the chain (51) and can move with the chain (51); The dust collector (60) is mounted on the base (52) and has a dust collection chamber; The support body moves up and down within the dust removal chamber and has a dust discharge port (61a). The dust removal chamber can be supplied with air by the air supply system, and the support body can be driven to rise and fall by the driver (61b). When the support rises and protrudes from the top of the dust removal chamber, a support area is formed at the top of the dust removal chamber for placing fire extinguisher bottles. When the support body descends and is located at the bottom of the dust removal chamber, the dust removal chamber is opened and the fire extinguisher bottle is allowed to enter.

2. The spraying device for a fire extinguisher according to claim 1, characterized in that: The dust collector (60) includes: The first body (600) has the dust removal chamber; A filter screen (601) is provided inside the dust removal chamber, and the dust removal chamber is divided into an inner chamber (601a) and an outer chamber (601b). An air inlet (602) is installed on the side wall of the first body (600) and communicates with the outer cavity (601b); The support includes: The second body (610) is controlled by the driver (61b) to move up and down in the inner cavity (601a); A support platform (611) is formed on top of the second body (610) and can be exposed from the top of the dust removal chamber when the second body (610) rises.

3. The spraying device for a fire extinguisher according to claim 2, characterized in that: The first body (600) is provided with a first cleaning port (71) communicating with the outer cavity (601b), and the second body (610) is provided with a second cleaning port (72) communicating with the inner cavity (601a). The base (52) is provided with a cleaning mechanism capable of cleaning the outer cavity (601b) and / or the inner cavity (601a) through the first cleaning port (71) and / or the second cleaning port (72), wherein the cleaning mechanism includes: The dust extraction chamber is formed within the base (52) and consists of a first dust extraction chamber (81) and a second dust extraction chamber (82) that are interconnected. The dust extraction body is composed of a first dust extraction body (821) that moves in the first dust extraction chamber (81) and a second dust extraction body (822) that moves in the second dust extraction chamber (82); The reset spring consists of a first reset spring (831) located in the first dust extraction chamber (81) and a second reset spring (832) located in the second dust extraction chamber (82); The drive shaft (84) is movable inside the first dust extraction chamber (81), and one end protrudes from the first dust extraction chamber (81); The dust discharge pipe consists of a first dust discharge pipe (851) connected to the first dust extraction chamber (81) and a second dust discharge pipe (852) connected to the second dust extraction chamber (82); The first dust extraction chamber (81) is connected to the second cleaning port (72) through the first dust extraction pipe (811), and the second dust extraction chamber (82) is connected to the first cleaning port (71) through the second dust extraction pipe (812). A one-way valve (86) is provided on the first dust extraction pipe (811), the second dust extraction pipe (812), the first dust discharge pipe (851), and the second dust discharge pipe (852). When the first dust extraction body (821) and / or the second dust extraction body (822) are controlled by the drive shaft (84) to move within the first dust extraction chamber (81) and / or the second dust extraction chamber (82), the first dust extraction body (821) and / or the second dust extraction body (822) can discharge the impurities in the first dust extraction chamber (81) and / or the second dust extraction chamber (82) through the dust discharge pipe; When the first dust extraction body (821) and / or the second dust extraction body (822) are reset by the reset spring, the first dust extraction chamber (81) and / or the second dust extraction chamber (82) can draw impurities in the outer cavity (601b) and / or the inner cavity (601a) into the first dust extraction chamber (81) and / or the second dust extraction chamber (82) through the first dust extraction pipe (811) and / or the second dust extraction pipe (812).

4. The spraying device for a fire extinguisher according to claim 3, characterized in that: The sub-fuselage (1a) is also provided with a guide rail structure for the end of the drive shaft (84) to move, wherein the guide rail structure includes: Guide rail body (91); Fixing body (92); The guide rail (91) is fixed to the auxiliary fuselage (1a) by the fixing body (92), and the guide rail (91) is composed of a straight section guide area and a wave section guide area.

5. A spraying device for a fire extinguisher according to any one of claims 2-4, characterized in that: A clamping structure is formed on the top of the first body, wherein the clamping structure includes: The clamping piece (930) is rotatably mounted on the top of the first body (600) via a pivot (931); Driven gears (932) are mounted on each rotating shaft (931); A drive gear (933) is rotatably mounted on the top of the first body (600); The drive gear ring (934) is coaxially arranged with the first body (600) and has an internal gear ring that meshes with each driven gear (932) and an external gear ring that meshes with the drive gear (933). The support groove consists of a first support groove (941) formed on the drive gear (933) and a second support groove (942) formed on the drive gear ring (934); The support rod consists of a first support rod (951) disposed on the first body (600) and movable in the first support groove (941) and a second support rod (952) disposed on the first body (600) and movable in the second support groove (942); The drive gear (933) is provided with a longitudinally penetrating threaded drive cavity (96), and a lifting shaft (97) that can pass through the threaded drive cavity (96) is provided in the first body (600), and a threaded drive shaft (98a, 98b) adapted to the threaded drive cavity (96) is provided on the lifting shaft (97). The clamping plate (930) has at least a first clamping edge (930a) for clamping a fire extinguisher bottle and a second clamping edge (930b) for clamping a lifting device.

6. The spraying device for a fire extinguisher according to claim 5, characterized in that: The clamping plate (930) has an air jet chamber supplied by the air supply system, and a plurality of air jet holes communicating with the air jet chamber are formed on the clamping plate (930).

7. A method for spraying a fire extinguisher, comprising using the spraying apparatus as described in claim 6, characterized in that, Includes the following steps: S1 Loading: The fire extinguisher bottle is placed in each support area of ​​the loading device and clamped by the first clamping edge of the clamping structure. It is then conveyed into the loading chamber by the loading device. The conveying mechanism keeps the lifting device and the fire extinguisher bottle on the same vertical line and drives the lifting device to descend. The lifting device is inserted into the mouth of the fire extinguisher bottle and fixes the fire extinguisher bottle, thus completing the loading operation. S2 spraying: The conveying mechanism transports fire extinguisher cylinders into the spraying chamber via a hoist, where they are sprayed by the spray head; S3 Drying: The fire extinguisher bottles sprayed in the spray booth are transported to the drying room by the conveying mechanism, and leave the drying room after drying, completing the spraying work of the fire extinguisher bottles; Prior to step S2, the fire extinguisher bottle can be fed into the dust removal chamber by the lifting device of the conveying mechanism, and dust removal work is carried out in the dust removal chamber.

8. The method for spraying a fire extinguisher according to claim 7, characterized in that: During the dust removal process of the fire extinguisher bottle entering the dust removal chamber, it undergoes the following dust removal steps in sequence, which include: P1: When the fire extinguisher bottle on the support area of ​​the feeding device is removed by the lifting device, the support body is lowered by the drive and forms a dust removal chamber in the dust removal body; P2: After the fire extinguisher bottle is controlled by the lifting device to enter the dust removal chamber, it maintains the same traveling speed as the feeding device. Then, the second clamping edge of the control clamping structure clamps the lifting device, and at the same time, the clamping structure is used to seal the top of the dust removal chamber. P3: The gas supply system supplies gas to the dust removal chamber and the jet chamber respectively. The gas entering the dust removal chamber is filtered by the filter screen and sprayed onto the circumferential outer wall of the fire extinguisher bottle. The gas entering the jet chamber is ejected from the jet hole and transports the impurities falling from the fire extinguisher bottle towards the dust discharge port, thus completing the dust removal and / or dust settling work. P4: After step P3 is completed, the support rises and opens the clamping structure in the process. Then, the fire extinguisher bottle leaves the dust removal chamber under the control of the hoist and is controlled by the conveying mechanism to enter the spraying chamber.

9. The method for spraying a fire extinguisher according to claim 8, characterized in that: After step P4 is completed, the feeding device enters the turnaround chamber via the feeding chamber for a self-cleaning step, which includes: L1: When the feeding device enters the return chamber, the support body is controlled by the driver to rise and close the top of the dust removal chamber. At the same time, a support area is formed on the top of the feeding device and it waits for the bottle to be loaded. L2: When the feeding device passes through the wave section guide area of ​​the guide rail structure, the drive shaft is controlled by the wave section guide area to perform reciprocating extension and retraction work. When the drive shaft extends and retracts, it works with the return spring to drive the dust extraction body in the dust extraction chamber to perform dust extraction and dust removal work. In step L2, when the drive shaft passes through the wave section guide area, it first retracts and squeezes the first dust extraction body and the second dust extraction body to discharge the material in the first dust extraction chamber and the second dust extraction chamber respectively. Then it extends and is reset by the reset spring. The first dust extraction body and the second dust extraction body are then removed from the inner and outer cavities through the first dust extraction chamber and the second dust extraction chamber. During the process of removing impurities from the outer and inner cavities, the gas supply system supplies gas to the outer or inner cavity and flows around the inner and / or outer cavity, thereby carrying away the impurities in the inner and / or outer cavities.

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