Intelligent electric control gas heater with power-off protection function

Abstract

The utility model relates to the technical field of gas heater equipment, in particular to an intelligent electric control gas heater with a power-off protection function, which is characterized in that a support shaft is screwed on the inner wall of a gas inlet pipe through a bearing, fan blades are fixedly arranged on the support shaft, a driving shaft is screwed on a rack through a bearing, and a motor is fixedly arranged on the rack; an output shaft of the motor is in transmission connection with the front end of the driving shaft, the inertia flywheel is rotationally arranged on the rack through a rotating shaft, the driving shaft is rotationally arranged on the rack through a bearing, the driven shaft is rotationally connected to the air inlet pipe in a penetrating mode through a bearing, and the lower end of the driven shaft is in transmission connection with the supporting shaft through a bevel gear set. The upper end of the driven shaft is in transmission with the lower end of the driving shaft; based on the structural scheme that air is actively supplied into a combustion chamber to assist combustion, a corresponding mechanical energy storage structure is arranged, then the mechanical energy storage structure can be started to maintain a fan to work for a certain time when equipment is powered off, and waste gas in the combustion chamber is blown out through an exhaust channel.

Description

Technical Field

[0001] The utility model relates to the technical field of gas heater equipment, in particular to an intelligent electric-controlled gas heater with a power-off protection function. Background Art

[0002] A gas heater is a convenient and inexpensive heating device that generates heat by burning natural gas and then transfers the heat energy to the user end through a heat transfer medium. The working section is separated from the heating section, and has a high degree of safety in use. However, since the heating source of a gas heater is the burning of natural gas, there will inevitably be certain gas safety risks. Although corresponding disposal structures and disposal plans are set up to address safety risks, such as being able to cut off the gas supply and shut down the combustion chamber when the equipment is powered off, this emergency structure only stops the supply of natural gas. The incompletely burned natural gas remaining in the combustion chamber can only be discharged passively, which can easily cause the residual natural gas to cause a re-ignition fire. Therefore, the power-off protection structure of this item needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to address the defects and shortcomings of the prior art and to provide an intelligent electric-controlled gas heater with a power-off protection function. Based on a structural scheme of actively supplying air into the combustion chamber to assist combustion, a corresponding mechanical energy storage structure is arranged, so that when the equipment loses power, the mechanical energy storage structure can be started to maintain the operation of the fan for a certain period of time, and the exhaust gas in the combustion chamber can be blown out through the exhaust duct.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] It comprises a combustion chamber and an air intake pipe, wherein the air intake pipe is inserted and fixed on the front side plate of the combustion chamber, a frame is fixedly arranged on the front side wall of the combustion chamber, and the air intake pipe is fixedly arranged at the lower end of the frame, and it also comprises:

[0006] A support shaft, wherein the support shaft is screwed onto the inner wall of the intake pipe through a bearing;

[0007] Fan blades, the fan blades are fixedly arranged on the supporting shaft;

[0008] A driving shaft, wherein the driving shaft is rotatably mounted on the frame via a bearing;

[0009] A motor, wherein the motor is fixedly mounted on the frame, and an output shaft of the motor is drivingly connected to a front end of the drive shaft;

[0010] An inertia flywheel, wherein the inertia flywheel is rotatably mounted on the frame via a rotating shaft, and an end shaft of the inertia flywheel is transmission-connected to a rear end of the drive shaft;

[0011] A driving shaft, wherein the driving shaft is rotatably mounted on the frame via a bearing, and the upper end of the driving shaft is connected to the driving shaft via a bevel gear set;

[0012] A driven shaft, wherein the driven shaft is screwed and inserted into the air intake pipe through a bearing, the lower end of the driven shaft is connected to the support shaft through a bevel gear set, and the upper end of the driven shaft is connected to the lower end of the driving shaft;

[0013] The electromagnetic coupler is arranged in series on the driving shaft.

[0014] Preferably, a hexagonal transmission rod is fixedly provided at the lower end of the driving shaft, a spline shaft is fixedly provided at the upper end of the driven shaft, a transmission member is provided between the driving shaft and the driven shaft, a hexagonal sleeve is integrally formed at the upper end of the transmission member, and the hexagonal transmission rod is movably inserted in the hexagonal sleeve, a spline sleeve is integrally formed at the lower end of the transmission member, and the spline sleeve is matched with the spline shaft.

[0015] Preferably, a lifting seat is provided on the transmission member through a bearing screw sleeve, a buckle is fixedly provided on the lifting seat, an electric push rod is fixedly provided on the frame, an electromagnetic claw is fixedly provided on the output shaft of the electric push rod, and the electromagnetic claw is matched with the buckle.

[0016] Preferably, a guide rod lifting seat is fixedly arranged on the frame and movably sleeved on the guide rod. A spring is sleeved and fixed on the guide rod, and the lower end of the spring is abutted against the upper surface of the lifting seat.

[0017] Preferably, the ridge of the spline shaft is arranged in a threaded shape, and the groove of the spline sleeve is arranged in a threaded shape matching with the ridge of the spline shaft.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The device is provided with an inertia flywheel, and the inertia flywheel is driven to rotate by a motor, and the fan blades are driven to rotate by the motor at the same time, so that the inertia flywheel can be used to store energy when the motor is powered on, so that when the device is powered off and stopped, the inertia flywheel provides kinetic energy to drive the fan blades to continue working for a period of time, so as to blow air into the stopped combustion chamber to blow away the residual exhaust gas, thereby ensuring the safety of fire use;

[0020] The device connects an electromagnetic coupler in series on the driving shaft between the inertial flywheel and the motor, and sets a transmission member between the driving shaft and the supporting shaft on which the fan blades are set. The transmission member connects the hexagonal transmission rod with the spline shaft, so that when the power is off, the output shaft of the motor and the inertial flywheel are disconnected and the driving shaft and the supporting shaft are closed, thereby driving the fan blades through the inertial flywheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a structural schematic diagram of the utility model.

[0022] Figure 2 yes Figure 1 Lower left side view of .

[0023] Figure 3 It is a structural schematic diagram of the driving shaft, the transmission member and the driven shaft in the utility model.

[0024] Figure 4 It is a structural schematic diagram of the drive shaft, transmission member and support shaft in the utility model.

[0025] Figure 5 It is a cross-sectional view of the transmission member in the utility model.

[0026] Description of reference numerals:

[0027] Combustion chamber 1, intake pipe 2, frame 3, support shaft 4, fan blades 5, drive shaft 6, motor 7, inertia flywheel 8, active shaft 9, driven shaft 10, electromagnetic coupler 11, hexagonal transmission rod 12, spline shaft 13, transmission part 14, hexagon socket 15, spline sleeve 16, lifting seat 17, buckle 18, electric push rod 19, electromagnetic claw 20, guide rod 21, spring 22. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] like Figure 1-5 As shown, this embodiment includes a combustion chamber 1 and an air intake pipe 2, wherein the air intake pipe 2 is inserted and fixed on the front side plate of the combustion chamber 1, a frame 3 is fixedly arranged on the front side wall of the combustion chamber 1, and the air intake pipe 2 is fixedly arranged at the lower end of the frame 3, and it also includes:

[0031] A support shaft 4, wherein the support shaft 4 is screwed onto the inner wall of the intake pipe 2 through a bearing;

[0032] The fan blades 5 are fixedly arranged on the support shaft 4;

[0033] A driving shaft 6, wherein the driving shaft 6 is rotatably mounted on the frame 3 via a bearing;

[0034] The motor 7 is fixedly mounted on the frame 3, and the output shaft of the motor 7 is drivingly connected to the front end of the drive shaft 6;

[0035] An inertia flywheel 8, wherein the inertia flywheel 8 is rotatably mounted on the frame 3 via a rotating shaft, and an end shaft of the inertia flywheel 8 is transmission-connected to a rear end of the drive shaft 6;

[0036] A driving shaft 9, wherein the driving shaft 9 is rotatably mounted on the frame 3 via a bearing, and the upper end of the driving shaft 9 is transmission-connected to the driving shaft 6 via a bevel gear set;

[0037] A driven shaft 10, wherein the driven shaft 10 is screwed through the air intake pipe via a bearing, and the lower end of the driven shaft 10 is transmission-connected to the support shaft 4 via a bevel gear set;

[0038] An electromagnetic coupler 11, wherein the electromagnetic coupler 11 is arranged in series on the drive shaft 6, and the electromagnetic coupler 11 is arranged between the bevel gear on the drive shaft 6 and the motor 7;

[0039] A guide rod 21, wherein the guide rod 21 is fixedly arranged on the frame 3;

[0040] A lifting seat 17, wherein the lifting seat 17 is movably sleeved on the guide rod 21;

[0041] A transmission member 14, wherein the transmission member 14 is rotatably mounted on a lifting seat 17 via a bearing, a hexagon socket 15 is integrally formed at the upper end of the transmission member 14, and a spline socket 16 is integrally formed at the lower end of the transmission member 14;

[0042] A hexagonal transmission rod 12, wherein the hexagonal transmission rod 12 is fixedly arranged at the lower end of the driving shaft 9, and the hexagonal transmission rod 12 is movably inserted into the hexagonal sleeve 15;

[0043] A spline shaft 13, wherein the spline shaft 13 is fixedly arranged at the upper end of the driven shaft 10, and the spline shaft 13 is movably inserted in the spline sleeve 16, and the convex ridge of the spline shaft 13 is a spiral arrangement in the shape of a positive thread, and the groove of the spline sleeve 16 is a spiral arrangement in cooperation therewith;

[0044] An electric push rod 19, wherein the electric push rod 19 is fixedly arranged on the frame 3;

[0045] An electromagnetic claw 20, wherein the electromagnetic claw 20 is fixedly arranged on the output shaft of the electric push rod 19;

[0046] Buckle 18, the buckle 18 is fixedly arranged on the lifting seat 17, and the electromagnetic claw 20 is buckled and arranged on the buckle 18;

[0047] The spring 22 is sleeved on the guide rod 21 , the upper end of the spring 22 is fixedly disposed on the upper end of the guide rod 21 , and the lower end of the spring 22 is abutted against the upper surface of the lifting seat 17 .

[0048] After adopting the technical solution disclosed in the utility model, it can achieve:

[0049] When the device is used, the device provides heat energy through the combustion of natural gas in the combustion chamber 1, and through the rotation of the fan blades 5, actively supplies air into the combustion chamber 1 through the air intake pipe 2, so that the natural gas in the combustion chamber 1 is fully burned, and when the device is powered on, it drives the inertia flywheel 8 to rotate and store energy. When the device is powered off and enters the power-off protection, the inertia flywheel 8 releases kinetic energy to drive the fan blades 5 to keep working for a certain period of time, so that the accumulated air is blown into the combustion chamber 1 to blow out the residual natural gas in the combustion chamber 1;

[0050] When the device is powered on:

[0051] When the motor 7 is turned on, the electromagnetic coupler 11 is energized and closed, the electromagnetic claw 20 is energized and closed and grabs the buckle 18, the motor 7 drives the drive shaft 6 to rotate, the drive shaft 6 drives the inertia flywheel 8 to rotate, the drive shaft 6 drives the active shaft 9 to rotate through the bevel gear group transmission, the active shaft 9 drives the transmission member 14 to rotate through the hexagonal transmission rod 12, the lifting seat 17 is pulled upward by the electric push rod 19, and the transmission member 14 is driven to move upward through the lifting seat 17, so that the spline sleeve 16 is separated from the spline shaft 13, and then the transmission member 14 cannot drive the driven shaft 10 to rotate, and then, when the motor 7 drives the inertia flywheel 8 to reach a stable speed, the transmission member 14 is lowered so that the spline sleeve 16 is connected to the spline shaft 13, and then while the drive shaft 6 drives the inertia flywheel 8 to keep rotating, the active shaft 9 drives the driven shaft 10 to rotate through the transmission member 14, the driven shaft 10 drives the support shaft 4 to rotate through the bevel gear group, the support shaft 4 drives the fan blades 5 to rotate, and sends the external air into the combustion chamber 1 through the intake pipe 2;

[0052] When the equipment is powered off and the corresponding gas supply structure enters power off protection:

[0053] The electromagnetic coupler 11 is powered off and disconnected, so that the driving shaft 9 is disconnected from the output shaft of the motor 7, the electromagnetic claw 20 is electrically opened and the buckle 18 is released, the spring 22 pushes the lifting seat 17 downward to move, and the lifting seat 17 drives the transmission member 14 to move downward, so that the spline sleeve 16 is sleeved on the spline shaft 13, and then, the inertial flywheel 8 keeps rotating to convert the accumulated potential energy into the kinetic energy of the driving shaft 6, and the driving shaft 6 drives the support shaft 4 to rotate through the driving shaft 9, the transmission member 14, and the driven shaft 10, and then, the rotation of the fan blade 5 is still maintained in the power-off state until the inertial flywheel 8 releases all the accumulated potential energy;

[0054] When the equipment is powered off and the electromagnetic claw 20 releases the buckle 18, the transmission member 14 descends by relying on its own neutral position and that of the lifting seat 17, and is pushed downward by the spring 22, so that the spline sleeve 16 descends and is sleeved on the spline shaft 13. In this state, when the transmission member 14 rotates, the transmission member 14 is the force-applying end and the driven shaft 10 is the force-receiving end, and in cooperation with the spiral spline shaft 13, the spline sleeve 16 maintains normal contact coupling with the spline shaft 13, thereby always maintaining the transmission connection between the transmission member 14 and the driven shaft 10 under the premise of losing the support of the electrical components.

[0055] The technical advantages that can be achieved by adopting the above technical solution are as follows:

[0056] The device is provided with an inertia flywheel 8, and the inertia flywheel 8 is driven to rotate by the motor 7, and the fan blades 5 are driven to rotate by the motor 7 at the same time, so that the inertia flywheel 8 can be used to store energy when the motor 7 is powered on, so that when the device is powered off and stopped, the inertia flywheel 8 provides kinetic energy to drive the fan blades 5 to continue working for a period of time, so as to blow air into the stopped combustion chamber 1 to blow away the residual exhaust gas, thereby ensuring the safety of fire use;

[0057] The device connects an electromagnetic coupler 11 in series on the driving shaft 6 between the inertial flywheel 8 and the motor 7, and sets a transmission member 14 between the driving shaft 9 and the supporting shaft 4 on which the fan blades 5 are set. The transmission member 14 connects the hexagonal transmission rod 12 with the spline shaft 13, so that when the power is off, the output shaft of the motor 7 and the inertial flywheel 8 can be disconnected and the driving shaft 6 and the supporting shaft 4 can be closed, so that the fan blades 5 can be driven by the inertial flywheel 8.

[0058] For those skilled in the art, they can modify the technical solutions recorded 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 utility model should be included in the protection scope of the present utility model.

Claims

1. An intelligent electric-controlled gas heater with a power-off protection function, comprising a combustion chamber (1) and an air intake pipe (2), wherein the air intake pipe (2) is inserted and fixed on the front side plate of the combustion chamber (1), a frame (3) is fixedly arranged on the front side wall of the combustion chamber (1), and the air intake pipe (2) is fixedly arranged at the lower end of the frame (3); characterized in that: It also contains: A support shaft (4), wherein the support shaft (4) is screwed onto the inner wall of the intake pipe (2) via a bearing; Fan blades (5), wherein the fan blades (5) are fixedly arranged on the support shaft (4); A driving shaft (6), wherein the driving shaft (6) is rotatably mounted on the frame (3) via a bearing; A motor (7), wherein the motor (7) is fixedly mounted on the frame (3), and an output shaft of the motor (7) is drivingly connected to a front end of the drive shaft (6); An inertia flywheel (8), wherein the inertia flywheel (8) is rotatably mounted on the frame (3) via a rotating shaft, and an end shaft of the inertia flywheel (8) is transmission-connected to a rear end of a drive shaft (6); A driving shaft (9), wherein the driving shaft (9) is rotatably mounted on the frame (3) via a bearing, and the upper end of the driving shaft (9) is transmission-connected to the driving shaft (6) via a bevel gear set; A driven shaft (10), wherein the driven shaft (10) is screwed and inserted into the intake pipe (2) through a bearing, the lower end of the driven shaft (10) is transmission-connected to the support shaft (4) through a bevel gear set, and the upper end of the driven shaft (10) is transmission-connected to the lower end of the driving shaft (9); An electromagnetic coupler (11), wherein the electromagnetic coupler (11) is arranged in series on the drive shaft (6).

2. The intelligent electric-controlled gas heater with power-off protection function according to claim 1 is characterized in that: A hexagonal transmission rod (12) is fixedly arranged at the lower end of the driving shaft (9), a spline shaft (13) is fixedly arranged at the upper end of the driven shaft (10), a transmission member (14) is arranged between the driving shaft (9) and the driven shaft (10), a hexagonal sleeve (15) is integrally formed at the upper end of the transmission member (14), and the hexagonal transmission rod (12) is movably inserted in the hexagonal sleeve (15), a spline sleeve (16) is integrally formed at the lower end of the transmission member (14), and the spline sleeve (16) is matched with the spline shaft (13).

3. The intelligent electric-controlled gas heater with power-off protection function according to claim 2 is characterized in that: The transmission member (14) is provided with a lifting seat (17) through a bearing rotation sleeve, the lifting seat (17) is fixedly provided with a buckle (18), the frame (3) is fixedly provided with an electric push rod (19), the output shaft of the electric push rod (19) is fixedly provided with an electromagnetic claw (20), and the electromagnetic claw (20) is matched with the buckle (18).

4. The intelligent electrically controlled gas heater with power failure protection function according to claim 3 is characterized in that: A guide rod (21) is fixedly arranged on the frame (3), and a lifting seat (17) is movably sleeved on the guide rod (21). A spring (22) is sleeved and fixed on the guide rod (21), and the lower end of the spring (22) is abutted against the upper surface of the lifting seat (17).

5. The intelligent electric-controlled gas heater with power-off protection function according to claim 4 is characterized in that: The convex ridge of the spline shaft (13) is arranged in a threaded shape, and the concave groove of the spline sleeve (16) is arranged in a threaded shape matching with the convex ridge of the spline shaft (13).

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