Automatic ash removal device and combustion fireplace

Abstract

The utility model discloses an automatic ash removal device, its technical scheme main points are including: hopper for adding combustion material, frame for placing hopper, ash removal subassembly and driving part, and driving part receives the starting signal to drive ash removal subassembly to carry out the ash removal action, control module is used to receive the trigger signal to give the starting signal of driving part starting unit length, installs the signal switch of frame, is used for giving the trigger signal of driving part when triggering, the cover plate is used for closing signal switch when covering the hopper mouth, and the cover plate separates the hopper mouth trigger signal switch, adopts the hopper cover action to trigger the ash removal device, to satisfy the ability of automatic ash removal of fireplace when adding material each time, reduces the ash dirt in fireplace.

Description

Technical Field

[0001] This utility model relates to the field of combustion fireplaces, and more specifically, to an automatic ash removal device and a combustion fireplace. Background Technology

[0002] A combustion fireplace is a type of fireplace that uses fuel combustion as its core principle. Essentially, it converts the chemical energy of fuels (such as wood, gas, biomass, etc.) into thermal energy.

[0003] A document with publication number CN120008103A and patent title "A real fireplace with ash removal function" is found. The specification discloses an ash removal device, namely a spiral ash pusher 4. Users can actively operate the spiral ash pusher 4 to remove ash. The operation can be done by hand or by operating the drive reduction motor 51. However, in actual use, users often forget to start the ash removal device. Often, after the burning particles in the hopper have burned out, new particles have been added multiple times, and the fireplace's burning cycle has become quite long. Yet, users still easily overlook the operation of actively removing ash, resulting in severe ash buildup at the ash removal location. Utility Model Content

[0004] The primary objective of this invention is to provide an automatic ash removal device that is triggered when the hopper lid closes, so as to automatically remove ash from the fireplace each time it is filled with fuel, thereby reducing ash buildup inside the fireplace.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An automatic ash removal device includes: a hopper for adding combustible material; a frame for holding the hopper; an ash removal assembly and a drive unit, wherein the drive unit receives a start signal to drive the ash removal assembly to perform an ash removal action; a control module for receiving a trigger signal and sending a start signal to the drive unit for a set duration; a signal switch installed on the frame for sending a trigger signal to the drive unit when triggered; and a cover plate that disengages from the hopper opening to trigger the signal switch.

[0006] Ideally, the hopper opening should face upwards.

[0007] Preferably, the signal switch is a push-button contact switch, and the button of the contact switch can be elastically reset.

[0008] Preferably, the edge of the contact switch mounting frame is provided with the button of the contact switch facing vertically upwards, and the cover plate is provided with a pressure plate for pressing the contact switch.

[0009] Preferably, the cover plate is hinged to the frame.

[0010] Preferably, the side of the cover plate facing the opening of the bucket is provided with a reinforcing rib.

[0011] A preferred design is one where the reinforcing ribs are arranged in a concave shape.

[0012] A preferred design is one where the hopper is mounted on a frame and a lifting handle is fixed inside the hopper.

[0013] Preferably, when the cover plate presses the signal switch, the reinforcing rib abuts against the lifting handle to control the travel of the cover plate pressing the signal switch.

[0014] The second objective of this invention is to provide a combustion fireplace that uses a hopper lid-closing action to trigger an ash-cleaning device, so as to automatically clean the fireplace each time fuel is added, thereby reducing ash buildup inside the fireplace.

[0015] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A combustion fireplace, including a furnace body, the furnace body including an automatic ash removal device.

[0016] In summary, this utility model has at least one of the following beneficial effects: (1) The ash removal device is triggered when the hopper lid is closed, so that the fireplace can be automatically cleaned every time it is filled with material, thereby reducing the ash inside the fireplace; (2) When adding pellets, the fireplace will not burn the pellets and the fireplace temperature will be at room temperature. At this time, the ash removal action is triggered, which reduces the interference of the high temperature generated by the fireplace combustion on the ash removal component.

[0017] (3) In some colder regions, fireplaces will burn fuel for a long time, such as an afternoon or a night. If the automatic ash removal is set during lunch break or at night, the noise during the ash removal process may affect people resting by the fireplace. This design is specifically designed to link the ash removal when adding fuel, so as to avoid disturbing people when they are warming and resting by the fireplace. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic dust removal device in the embodiment; Figure 2 This is a schematic diagram of the cover plate being opened in the frame in the embodiment; Figure 3 This is a schematic diagram of the reinforcing ribs installed on the cover plate in the embodiment; Figure 4 This is a schematic diagram of the automatic ash removal device in the fireplace in the embodiment.

[0019] In the picture: 1. Framework; 2. Hopper; 21. Lifting handle; 3. Cover plate; 31. Pressure plate; 32. Reinforcing rib plate; 4. Drive components; 5. Control module; 6. Signal switches; 7. Dust removal components; 8. Power supply; 9. Furnace body. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example 1, an automatic dust removal device, referring to Figure 1 It includes a hopper 2, which is a metal hopper with its opening facing upwards. The hopper 2 is used to hold fuel pellets, and a spiral conveyor is installed below the hopper 2 to transport the pellets into the furnace.

[0022] A cover plate 3 is placed on top of the hopper 2. The cover plate 3 is a metal cover plate. The opening and closing action of the cover plate 3 controls the activation of the signal switch 6. The signal switch 6 is a push-button contact switch. The button of the contact switch can be elastically reset. In other embodiments, the signal switch 6 can also be a photoelectric proximity switch or other triggering device.

[0023] When the cover plate 3 is in the closed state, pressing the contact switch with the cover plate 3 will turn the signal switch 6 into the closed state. When the cover plate 3 is in the open state, the pressed contact switch is elastically reset, the signal switch 6 is in the start state and sends a trigger signal; The signal switch 6 is electrically connected to the control module 5, the control module 5 is electrically connected to the drive component 4, and the drive component 4 drives the dust removal assembly 7. Control module 5 is a PLC circuit board. The PLC circuit board is equipped with a time controller. The time controller is used to control the unit duration of the drive component 4. The unit duration can be 30 seconds, 1 minute, 2 minutes or 3 minutes, etc. When the drive unit 4 receives the start signal and begins to rotate, even if the cover plate 3 is closed immediately, the drive unit 4 will still rotate for one unit of time.

[0024] The driving component 4 is a motor, and the dust removal assembly 7 is a rotating dust removal structure.

[0025] Its working principle is as follows: when the cover plate 3 is opened, the signal switch 6 sends a trigger signal to the control module 5. The control module 5 has an external power supply 8. After receiving the trigger signal, the control module 5 sends a relay start signal, causing the relay to close. The relay is located on the power supply line 8 of the motor, which serves as the driving component 4. Therefore, the motor is powered on as the power source for dust cleaning. The relay will disconnect the power supply 8 after one unit of time, thereby completing one unit of dust cleaning. In other embodiments, the control module 5 has a DC-DC converter, and the control module 5 can directly set the power supply line to connect to the motor, so the motor does not need to be connected to an external power supply 8. Afterwards, the cover plate 3 closes again on the signal switch 6 on the hopper 2, waiting for the next time the cover is opened for cleaning; The dust removal assembly 7 includes a horizontal air duct with a hollow spiral rod. The motor drives the hollow spiral rod to rotate via a chain, causing the dust on the air duct to move to both sides and eventually fall downwards at both ends, thus achieving dust removal from the air duct.

[0026] Specifically, Figure 2 The hopper 2 is set on the frame 1, which is a metal frame. The upper end of the frame 1 has an installation hole, and the hopper 2 can be put into the frame 1 from top to bottom. The crossbar of the frame 1 has a slot, and the outer side of the hopper 2 is fixed with a block. When the hopper 2 is put into the frame 1, the block is engaged in the slot, thus setting the hopper 2 in the frame 1.

[0027] To facilitate the loading and unloading of the hopper 2 in the frame 1 during assembly and maintenance, two lifting handles 21 are welded and fixed to the inner wall of the hopper 2.

[0028] To facilitate the opening and closing of the cover plate 3, the hinge rod of the cover plate 3 and the plate at the front end of the frame 1 are rotatably connected. That is, one end of the hinge rod is connected to the cover plate 3 through a pivot, and the other end of the hinge rod is connected to the plate of the frame 1 through a pivot. The cover plate 3 can be rotated and opened and closed on the frame 1.

[0029] Specifically, the edge of the contact switch mounting frame 1 has an insertion hole on its upper edge. The contact switch is inserted into the insertion hole, and a circular connecting plate is provided at the upper end of the contact switch. The connecting plate abuts against the upper surface of the frame 1. A spring clip is installed below the connecting plate, and the spring clip is elastically engaged with the inner wall of the insertion hole to achieve fixation. In this way, when the cover plate 3 is closed, it can press the contact switch. When the cover plate 3 is opened, the contact switch resets and sends a trigger signal. Since the button of the contact switch faces vertically upward, the cover plate 3 is provided with a pressure plate 31. The pressure plate 31 is located at the lower edge of the cover plate 3 and is formed by bending. The pressure plate 31 is used to press and hold the contact switch.

[0030] The advantages of this design are obvious. The opening and closing of the cover plate 3 is linked to the ash cleaning action, so that the ash cleaning is initiated every time the cover plate 3 of the hopper 2 is opened. And the cover plate 3 must be opened every time fuel pellets are added to the hopper 2. This ensures that the user will perform the ash cleaning action after burning one hopper of pellets. Because the ash cleaning action is triggered by the opening of the cover, even if the user often forgets to clean the ash, the purpose of regular ash cleaning can still be achieved. The regularity here refers to the period when the cover plate 3 is opened, which is the usage cycle after the pellets are burned.

[0031] The fireplace requires an external power source 8 or the installation of a battery to provide power to the electronic control components 8; Example 2, an automatic dust removal device, differs from Example 1 in that, see below. Figure 3 The side of the cover plate 3 facing the opening of the bucket is provided with a reinforcing rib 32; the reinforcing rib 32 is arranged in a concave shape.

[0032] The reinforcing rib 32 is welded to the cover plate 3, with its three edges located inside the cover plate 3, and its two ends welded to the outer edge of the cover plate 3.

[0033] The purpose of the reinforcing rib 32 is to increase the structural strength of the cover plate 3. Since the cover plate 3 has a large area, the overall strength would be weak if a single metal sheet were used. Therefore, the reinforcing rib 32 is used to increase the overall structural strength.

[0034] Example 3, an automatic dust removal device, differs from Example 2, as described below. Figures 2-3 The reinforcing rib 32 protrudes from the cover plate 3, and the concave shape of the reinforcing rib 32 can be embedded into the opening of the hopper 2. Therefore, when the cover plate 3 presses the hopper 2, the reinforcing rib 32 can be screwed into the opening of the hopper 2, and the reinforcing rib 32 abuts against the lifting handle 21. At this time, the signal switch 6 is in the pressed state, and due to the blocking effect of the lifting handle 21, the cover plate 3 cannot move further down, thus protecting the signal switch 6.

[0035] Example 4, Combustion fireplace, reference Figure 4 It includes a furnace body 9, which includes an automatic ash removal device according to embodiment 1, embodiment 2, or embodiment 3.

[0036] Frame 1 is the metal frame of furnace body 9, and cover plate 3 is located above furnace body 9; The control module 5 is installed below the furnace body 9, and the motor is installed on the side of the furnace body 9; The furnace chamber and hopper 2 are arranged in a front-to-back configuration on the furnace body 9; The ash removal assembly 7 is installed above the furnace. The hot air from the furnace will enter the air duct of the ash removal assembly 7 from top to bottom. The plate of the air duct is welded to the furnace body 9. The two ends of the hollow spiral rod are rotatably connected to the side plate of the furnace body 9. During normal combustion, the particles in hopper 2 are fed into the furnace through the conveying structure for combustion; After combustion is complete, the user can open cover plate 3 to add fuel, at which point the ash removal will be activated.

[0037] The fireplace is equipped with a blower that blows air into the furnace, and the furnace body 9 is connected to an external power supply 8.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An automatic dust removal device, characterized in that, include: Hopper (2), used for adding combustion materials; Frame (1) for placing hopper (2); The dust removal assembly (7) and the driving component (4) are connected. The driving component (4) receives a start signal to drive the dust removal assembly (7) to perform a dust removal action. The control module (5) is used to receive the trigger signal and give the start signal to the drive unit (4) for a start time of one unit. The signal switch (6) installed on the frame (1) is used to provide a trigger signal to the drive unit (4) when triggered; Cover plate (3), cover plate (3) disengages from the bucket opening trigger signal switch (6).

2. The automatic dust removal device according to claim 1, characterized in that: The opening of the hopper (2) faces upward.

3. The automatic dust removal device according to claim 1, characterized in that: The signal switch (6) is a push-button contact switch, and the button of the contact switch can be elastically reset.

4. The automatic dust removal device according to claim 3, characterized in that: The edge of the contact switch mounting frame (1) is provided with the button of the contact switch facing vertically upward, and the cover plate (3) is provided with a pressure plate (31) for pressing the contact switch.

5. The automatic dust removal device according to claim 1, characterized in that: The cover plate (3) is hinged to the frame (1).

6. The automatic dust removal device according to claim 1, characterized in that: The side of the cover plate (3) facing the opening of the bucket is provided with a reinforcing rib plate (32).

7. The automatic dust removal device according to claim 6, characterized in that: The reinforcing ribs (32) are arranged in a concave shape.

8. The automatic dust removal device according to claim 6, characterized in that: The hopper (2) is mounted on the frame (1), and a lifting handle (21) is fixed inside the hopper (2).

9. The automatic dust removal device according to claim 8, characterized in that: When the cover plate (3) presses the signal switch (6), the reinforcing rib (32) abuts against the handle (21) to control the travel of the cover plate (3) pressing the signal switch (6).

10. A combustion fireplace, characterized by: It includes a furnace body (9), which includes the automatic ash removal device of claim 1.

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