Instantaneous heater

Abstract

The present invention discloses an instant heating heater, which relates to the technical field of heaters. This instant heating heater comprises a shell, a U-shaped tube with sealed ends fixedly connected inside the shell, and two symmetrically arranged mounting seats fixedly connected inside the two ends of the U-shaped tube, and an electric heating rod fixedly connected to the end of each mounting seat, and the electric heating rod is inserted in the U-shaped tube, and the side wall of each electric heating rod is sleeved with a telescopic cover, and one end of the telescopic cover is fixed to the end of the U-shaped tube. This instant heating heater exposes the electric heating rod when heating, and after heating is completed, the electric heating rod is sealed and protected, so that the electric heating rod is isolated from the external water to avoid the generation of scale, thereby ensuring its heating efficiency and service life; it can increase the moving path of cold water, thereby improving the efficiency and effect of heating; it can adjust the heating power of the electric heating rod according to the flow rate of cold water, which is more energy-saving and environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of heaters, in particular to an instant heater. Background Art

[0002] The instant heater is the core component of the instant electric water heater. It has the characteristics of fast and efficient heating and is an important part of modern water heater technology. The instant heater uses electric current to pass through the heating body to generate heat and quickly heat the water flowing through it. Its core component is the heating body, which generally uses metal tubes or ceramic heating plates as heating elements to achieve instant heating without waiting for heating time.

[0003] However, when the existing instant heaters are in use, the flow path of cold water is short, which affects the efficiency and effect of heating. At the same time, after the heating is completed, the electric heating rod is always immersed in water, which is easy to produce scale and inconvenient to clean, thereby affecting the heating efficiency and service life. In addition, it is not convenient to adjust the efficiency of the electric heating rod according to the flow rate of cold water, which is not energy-saving and environmentally friendly. Summary of the invention

[0004] The object of the present invention is to provide an instant heater to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an instant heating heater comprises a shell, a U-shaped tube with sealed ends fixedly connected inside the shell, and two symmetrically arranged mounting seats are fixedly connected inside the two ends of the U-shaped tube, an electric heating rod is fixedly connected to the end of each mounting seat, the electric heating rod is inserted in the U-shaped tube, and a side wall of each electric heating rod is sleeved with a telescopic cover, one end of the telescopic cover is fixed to the end of the U-shaped tube, and the other end of the telescopic cover is fixedly connected to a sealing ring, the sealing ring is sleeved on the side wall of the electric heating rod, and the movement of the sealing ring is driven by a pulling mechanism, a water supply pipe is fixedly connected to the side wall of the shell, and a water inlet pipe is fixedly connected between the water supply pipe and the U-shaped tube, the other end of the water supply pipe is fixedly connected to a fixed box, and the side wall of the fixed box is fixedly connected to a connecting pipe, the other end of the connecting pipe is fixedly connected to a water inlet valve, and a water outlet valve is fixedly connected to the side wall of the shell, and a water outlet pipe is fixedly connected between the water outlet valve and the U-shaped tube.

[0006] Preferably, the pulling mechanism includes an L-shaped plate fixedly connected to the top of the shell, and the bottom of the L-shaped plate is rotatably connected to a winding wheel via a rotating shaft, two symmetrically arranged pull ropes are wound around the side wall of the winding wheel, and the side wall of each sealing ring is fixedly connected to a connecting block, the other end of the pull rope passes through the U-shaped tube and is fixed to the side wall of the connecting block, the side wall of the shell is provided with a guide mechanism for guiding the pull rope, and the rotation of the rotating shaft is driven by a driving mechanism.

[0007] Preferably, a first spring is sleeved on the side wall of the electric heating rod, and two ends of the first spring are respectively fixed to the sealing ring and the end of the U-shaped tube.

[0008] Preferably, the driving mechanism includes a gear fixedly mounted on the side wall of the rotating shaft, and the side wall of the L-shaped plate is connected to a rack via a reset mechanism, the rack is meshed with the gear, and the movement of the rack is driven by a driving mechanism.

[0009] Preferably, the reset mechanism includes two symmetrically arranged fixed blocks fixedly connected to the side walls of the L-shaped plate, and the side walls opposite to the two fixed blocks are fixedly connected to two symmetrically arranged guide rods, the side wall sleeve of each guide rod is provided with a slider, the slider is fixed to the side wall of the rack, and the side wall sleeve of each guide rod is provided with a second spring.

[0010] Preferably, the pushing mechanism includes a rotating rod rotatably connected to the top of the fixed box, and a pointer is fixedly connected to the side wall of the rotating rod, a slide groove is provided on the top of the pointer, and a connecting frame is fixedly connected to the side wall of the rack, a pushing pin is fixedly connected to the bottom of the connecting frame, and the pushing pin is inserted in the slide groove, a power mechanism for driving the rotating rod to rotate is provided in the fixed box, and an indicating mechanism for indicating the rotation angle of the pointer is provided on the side wall of the fixed box.

[0011] Preferably, the power mechanism includes a driving shaft rotatably connected in a fixed box, and the upper end of the driving shaft is fixed to the lower end of the rotating rod, and a baffle is fixedly connected to the side wall of the driving shaft.

[0012] Preferably, the indicating mechanism comprises an L-shaped frame fixedly connected to the side wall of the fixed box, and the side wall of the L-shaped frame is fixedly connected with an arc plate, the arc plate is provided with scale markings, and the side wall of the fixed box is provided with a detection mechanism for detecting the scale markings indicated by the pointer.

[0013] Preferably, the detection mechanism comprises a mounting plate fixedly connected to a side wall of the fixed box, and a visual sensor is fixedly inserted on the top of the mounting plate.

[0014] Preferably, the guide mechanism includes a guide block fixedly connected to the top of the shell, and a pull rope passes through the side wall of the guide block. The side wall of the shell is fixedly connected with two groups of symmetrically arranged support blocks, and the number of support blocks in each group is two. The side wall of each group of support blocks is rotatably connected with a guide wheel, and the pull rope slides on the side wall of the guide wheel.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This instant heater is provided with a pulling mechanism, etc., when it is necessary to heat the cold water, the water inlet valve and the water outlet valve are opened, at this time, the external cold water enters the fixed box through the water inlet valve and the connecting pipe, and then enters the U-shaped tube through the water supply pipe and the water inlet pipe. At the same time, when the cold water enters the fixed box, it impacts the surface of the baffle, so that the baffle drives the driving shaft to rotate counterclockwise. When the driving shaft rotates, the pointer is driven to rotate through the rotating rod, and the push pin is caused to slide in the slide groove, thereby pushing the rack to move through the connecting frame. At the same time, the second spring is compressed, and when the rack moves. , pushing the gear and the rotating shaft to rotate, thereby driving the winding wheel to rotate, which can reel in the pull rope, thereby pulling the sealing ring to slide along the side wall of the electric heating rod. At the same time, the first spring and the telescopic cover are compressed, and the sealing ring slides to the side wall of the mounting seat for sealing. At this time, the electric heating rod is exposed. After the electric heating rod is exposed, the electric heating rod is energized and heated, thereby heating the cold water entering the U-shaped tube. Through the setting of the U-shaped tube, the movement path of the cold water can be increased, thereby improving the heating efficiency and effect. The heated hot water is discharged through the outlet pipe and the outlet valve for use, and when the heating is stopped , close the water inlet valve and the water outlet valve. At this time, the rack can move and reset under the action of the second spring, thereby pushing the gear and the rotating shaft to rotate and reset, and then driving the winding wheel to rotate in the opposite direction, thereby loosening the wound pull rope. At this time, under the action of the first spring, the sealing ring slides along the side wall of the mounting seat to the side wall of the electric heating rod and close to the end position, and at the same time, drives the telescopic cover to move and reset. In the process of moving the sealing ring, impurities such as water stains and scale on the surface of the electric heating rod can be cleaned, and the electric heating rod can be sealed and prevented through the joint action of the telescopic cover and the sealing ring. Protection, so that the electric heating rod is isolated from the external water to avoid scale generation, thereby ensuring its heating efficiency and service life; by setting up a detection mechanism, etc., when heating, when the external cold water enters the fixed box through the water inlet valve and the connecting pipe, it impacts the surface of the baffle, so that the baffle drives the driving shaft to rotate counterclockwise, and drives the pointer to rotate through the rotating rod. At this time, the flow rate of cold water can be judged by observing the scale mark on the arc plate pointed by the pointer through the visual sensor. The greater the flow rate, the greater the rotation angle of the pointer, and the heating power of the electric heating rod can be adjusted according to the flow rate of cold water, which is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a partial cross-sectional structural schematic diagram of the housing and the fixing box in the present invention;

[0019] Figure 3It is a partial cross-sectional structural schematic diagram of the U-shaped tube and the telescopic cover in the present invention;

[0020] Figure 4 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 5 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0022] Figure 6 for Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0023] Figure 7 for Figure 3 Schematic diagram of the enlarged structure at D in the middle;

[0024] Figure 8 for Figure 4 Schematic diagram of the enlarged structure at E in the middle;

[0025] Fig. 9 for Figure 5 Schematic diagram of the enlarged structure at F in the middle.

[0026] In the figure: 1, housing; 2, pulling mechanism; 201, L-shaped plate; 202, rotating shaft; 203, winding wheel; 204, pulling rope; 205, connecting block; 3, driving mechanism; 301, gear; 302, rack; 4, resetting mechanism; 401, fixing block; 402, guide rod; 403, slider; 404, second spring; 5, pushing mechanism; 501, connecting frame; 504, rotating rod; 505, pointer; 506, slide groove; 507, pushing pin; 6, indicating mechanism; 601, L-shaped frame; 602, curved plate ; 603, scale mark; 7, power mechanism; 701, drive shaft; 702, baffle; 8, guide mechanism; 801, guide block; 802, support block; 803, guide wheel; 9, detection mechanism; 901, mounting plate; 902, visual sensor; 10, first spring; 11, U-shaped tube; 12, mounting seat; 13, electric heating rod; 14, telescopic cover; 15, sealing ring; 16, water outlet pipe; 17, water inlet valve; 18, connecting pipe; 19, fixing box; 20, water supply pipe; 21, water inlet pipe; 22, water outlet valve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 9 The present invention provides a technical solution for an instant heating heater: an instant heating heater comprises a shell 1, a U-shaped tube 11 with sealed ends at both ends is fixedly connected in the shell 1, and two symmetrically arranged mounting seats 12 are fixedly connected inside the two ends of the U-shaped tube 11, an electric heating rod 13 is fixedly connected to the end of each mounting seat 12, the electric heating rod 13 is inserted in the U-shaped tube 11, and a side wall of each electric heating rod 13 is sleeved with a telescopic cover 14, one end of the telescopic cover 14 is fixed to the end of the U-shaped tube 11, and the other end of the telescopic cover 14 is fixedly connected to a sealing ring 15, the sealing ring 15 is sleeved on the side wall of the electric heating rod 13, and the movement of the sealing ring 15 is driven by a pulling mechanism 2, a water supply pipe 20 is fixedly connected to the side wall of the shell 1, and the water supply pipe 20 and the U-shaped tube 1 1 is fixedly connected with a water inlet pipe 21, the other end of the water supply pipe 20 is fixedly connected with a fixed box 19, and the side wall of the fixed box 19 is fixedly connected with a connecting pipe 18, the other end of the connecting pipe 18 is fixedly connected with a water inlet valve 17, and the side wall of the shell 1 is fixedly connected with a water outlet valve 22, and a water outlet pipe 16 is fixedly connected between the water outlet valve 22 and the U-shaped tube 11. When heating, the electric heating rod 13 is exposed. After the heating is completed, the electric heating rod 13 is sealed and protected, so that the electric heating rod 13 is isolated from the external water to avoid scale generation, thereby ensuring its heating efficiency and service life; the moving path of cold water can be increased, thereby improving the heating efficiency and effect; the heating power of the electric heating rod 13 can be adjusted according to the flow rate of cold water, which is more energy-saving and environmentally friendly.

[0029] See also Figure 4-Figure 9The pulling mechanism 2 includes an L-shaped plate 201 fixedly connected to the top of the shell 1, and the bottom of the L-shaped plate 201 is rotatably connected to a winding wheel 203 through a rotating shaft 202. Two symmetrically arranged pull ropes 204 are wound around the side wall of the winding wheel 203, and the side wall of each sealing ring 15 is fixedly connected to a connecting block 205. The other end of the pull rope 204 passes through the U-shaped tube 11 and is fixed to the side wall of the connecting block 205. The side wall of the shell 1 is provided with a guide mechanism 8 for guiding the pull rope 204, and the rotation of the rotating shaft 202 is driven by the driving mechanism 3. When it is necessary to When the cold water is heated, the water inlet valve 17 and the water outlet valve 22 are opened. At this time, the external cold water enters the fixed box 19 through the water inlet valve 17 and the connecting pipe 18, and then enters the U-shaped tube 11 through the water supply pipe 20 and the water inlet pipe 21. At the same time, when the cold water enters the fixed box 19, the driving mechanism 3 drives the rotating shaft 202 to rotate, thereby driving the winding wheel 203 to rotate, so that the pull rope 204 can be reeled up, thereby pulling the sealing ring 15 to slide along the side wall of the electric heating rod 13. At the same time, the telescopic cover 14 is compressed, and the sealing ring 15 is compressed. Slide to the side wall of the mounting seat 12 for sealing. At this time, the electric heating rod 13 is exposed. After the electric heating rod 13 is exposed, the electric heating rod 13 is energized for heating, thereby heating the cold water entering the U-shaped tube 11. The setting of the U-shaped tube 11 can increase the movement path of the cold water, thereby improving the heating efficiency and effect. The heated hot water is discharged through the outlet pipe 16 and the outlet valve 22 for use. When the heating is stopped, the inlet valve 17 and the outlet valve 22 are closed. At this time, the winding wheel 203 rotates in the opposite direction, thereby winding the draw rope 204 Release. At this time, under the action of the first spring 10, the sealing ring 15 slides along the side wall of the mounting seat 12 to the side wall of the electric heating rod 13 and close to the end position. At the same time, the telescopic cover 14 is driven to move and reset. During the movement of the sealing ring 15, water stains, scale and other impurities on the surface of the electric heating rod 13 can be cleaned. Moreover, through the joint action of the telescopic cover 14 and the sealing ring 15, the electric heating rod 13 can be sealed and protected, so that the electric heating rod 13 is isolated from the external water to avoid the formation of scale, thereby ensuring its heating efficiency and service life.

[0030] See also Figure 3 , Figure 6 and Figure 7 The side wall of the electric heating rod 13 is sleeved with a first spring 10 , and the two ends of the first spring 10 are respectively fixed to the sealing ring 15 and the end of the U-shaped tube 11 , so as to reset the movement of the sealing ring 15 .

[0031] See also Figure 8The driving mechanism 3 includes a gear 301 fixedly mounted on the side wall of the rotating shaft 202, and the side wall of the L-shaped plate 201 is connected to a rack 302 through a reset mechanism 4. The rack 302 is meshed with the gear 301, and the movement of the rack 302 is pushed by the pushing mechanism 5. The rack 302 is pushed to move by the pushing mechanism 5. When the rack 302 moves, the gear 301 and the rotating shaft 202 are pushed to rotate, thereby driving the winding wheel 203 to rotate.

[0032] See also Figure 8 The reset mechanism 4 includes two symmetrically arranged fixed blocks 401 fixedly connected to the side walls of the L-shaped plate 201, and the opposite side walls of the two fixed blocks 401 are fixedly connected to two symmetrically arranged guide rods 402, and the side wall of each guide rod 402 is sleeved with a slider 403, the slider 403 is fixed to the side wall of the rack 302, and the side wall of each guide rod 402 is sleeved with a second spring 404, which plays a guiding and resetting role for the movement of the rack 302.

[0033] See also Figure 8 and Fig. 9 The pushing mechanism 5 includes a rotating rod 504 rotatably connected to the top of the fixed box 19, and a pointer 505 is fixedly connected to the side wall of the rotating rod 504, a slide groove 506 is opened on the top of the pointer 505, and a connecting frame 501 is fixedly connected to the side wall of the connecting frame 501, and a pushing pin 507 is fixedly connected to the bottom of the connecting frame 501, and the pushing pin 507 is inserted in the slide groove 506. A power mechanism 7 for driving the rotating rod 504 to rotate is provided in the fixed box 19, and an indicating mechanism 6 for indicating the rotation angle of the pointer 505 is provided on the side wall of the fixed box 19. When cold water enters the fixed box 19, the driving shaft 701 is driven by the power mechanism 7 to rotate counterclockwise. When the driving shaft 701 rotates, the pointer 505 is driven to rotate through the rotating rod 504, and the pushing pin 507 slides in the slide groove 506, thereby pushing the rack 302 to move through the connecting frame 501.

[0034] See also Fig. 9 The power mechanism 7 includes a driving shaft 701 rotatably connected to the fixed box 19, and the upper end of the driving shaft 701 is fixed to the lower end of the rotating rod 504, and the side wall of the driving shaft 701 is fixedly connected with a baffle 702. When cold water enters the fixed box 19, it impacts the surface of the baffle 702, so that the baffle 702 drives the driving shaft 701 to rotate counterclockwise. When the driving shaft 701 rotates, the pointer 505 is driven to rotate through the rotating rod 504.

[0035] See also Fig. 9The indicating mechanism 6 includes an L-shaped frame 601 fixedly connected to the side wall of the fixed box 19, and the side wall of the L-shaped frame 601 is fixedly connected with an arc plate 602, and a scale mark 603 is set on the arc plate 602, and the side wall of the fixed box 19 is provided with a detection mechanism 9 for detecting the scale mark 603 indicated by the pointer 505. When external cold water enters the fixed box 19 through the water inlet valve 17 and the connecting pipe 18, it impacts the surface of the baffle 702, so that the baffle 702 drives the driving shaft 701 to rotate counterclockwise, and drives the pointer 505 to rotate through the rotating rod 504, and observes the scale mark 603 on the arc plate 602 indicated by the pointer 505, and the flow rate of the cold water can be judged. The greater the flow rate, the greater the rotation angle of the pointer 505.

[0036] See also Fig. 9 The detection mechanism 9 includes a mounting plate 901 fixedly connected to the side wall of the fixed box 19, and a visual sensor 902 is fixedly inserted on the top of the mounting plate 901. The flow rate of cold water can be determined by observing the scale mark 603 on the arc plate 602 pointed to by the pointer 505 through the visual sensor 902. The greater the flow rate, the greater the rotation angle of the pointer 505, and the heating power of the electric heating rod 13 is adjusted according to the flow rate of cold water, which is more energy-saving and environmentally friendly.

[0037] See also Figure 4 The guide mechanism 8 includes a guide block 801 fixedly connected to the top of the shell 1, and the pull rope 204 passes through the side wall of the guide block 801. The side wall of the shell 1 is fixedly connected with two groups of symmetrically arranged support blocks 802, and the number of each group of support blocks 802 is two. The side wall of each group of support blocks 802 is rotatably connected with a guide wheel 803, and the pull rope 204 slides on the side wall of the guide wheel 803, which guides the movement of the pull rope 204.

[0038] Working principle: When in use, when it is necessary to heat the cold water, open the water inlet valve 17 and the water outlet valve 22. At this time, the external cold water enters the fixed box 19 through the water inlet valve 17 and the connecting pipe 18, and then enters the U-shaped tube 11 through the water supply pipe 20 and the water inlet pipe 21. At the same time, when the cold water enters the fixed box 19, it impacts the surface of the baffle 702, so that the baffle 702 drives the drive shaft 701 to rotate counterclockwise. When the drive shaft 701 rotates, the pointer 505 is driven to rotate through the rotating rod 504, and the push pin 507 slides in the slide groove 506, thereby pushing the rack 302 to move through the connecting frame 501. At the same time, the second spring 404 is compressed. When the rack 3 When 02 moves, the gear 301 and the rotating shaft 202 are pushed to rotate, thereby driving the winding wheel 203 to rotate, and the pull rope 204 can be reeled up, thereby pulling the sealing ring 15 to slide along the side wall of the electric heating rod 13. At the same time, the first spring 10 and the telescopic cover 14 are compressed, and the sealing ring 15 slides to the side wall of the mounting seat 12 for sealing. At this time, the electric heating rod 13 is exposed. After the electric heating rod 13 is exposed, the electric heating rod 13 is powered on and heated, thereby heating the cold water entering the U-shaped tube 11. Through the setting of the U-shaped tube 11, the moving path of the cold water can be increased, thereby improving the heating efficiency and effect. The heated hot water is discharged through the outlet pipe 16 and the outlet valve 22 for use;

[0039] When the heating is to be stopped, the water inlet valve 17 and the water outlet valve 22 are closed. At this time, the rack 302 can be moved and reset under the action of the second spring 404, thereby pushing the gear 301 and the rotating shaft 202 to rotate and reset, and then driving the winding wheel 203 to rotate in the opposite direction, so as to loosen the wound pull rope 204. At this time, under the action of the first spring 10, the sealing ring 15 slides along the side wall of the mounting seat 12 to the side wall of the electric heating rod 13 and close to the end position, and at the same time, drives the telescopic cover 14 to move and reset. In the process of the movement of the sealing ring 15, impurities such as water stains and scale on the surface of the electric heating rod 13 can be cleaned, and through the joint action of the telescopic cover 14 and the sealing ring 15, the electric heating rod 13 can be sealed and protected, so that the electric heating rod 13 is isolated from the external water to avoid the formation of scale, thereby ensuring its heating efficiency and service life;

[0040] Moreover, when heating is performed, when external cold water enters the fixed box 19 through the water inlet valve 17 and the connecting pipe 18, it impacts the surface of the baffle 702, causing the baffle 702 to drive the drive shaft 701 to rotate counterclockwise, and drives the pointer 505 to rotate through the rotating rod 504. At this time, the flow rate of the cold water can be determined by observing the scale mark 603 on the arc plate 602 pointed by the pointer 505 through the visual sensor 902. The greater the flow rate, the greater the rotation angle of the pointer 505, and the heating power of the electric heating rod 13 can be adjusted according to the flow rate of the cold water, which is more energy-saving and environmentally friendly.

Claims

1. An instant heater, comprising a housing (1), characterized in that: A U-shaped tube (11) with sealed ends is fixedly connected inside the shell (1), and two symmetrically arranged mounting seats (12) are fixedly connected inside the two ends of the U-shaped tube (11), and an electric heating rod (13) is fixedly connected to the end of each mounting seat (12), and the electric heating rod (13) is inserted into the U-shaped tube (11), and the side wall of each electric heating rod (13) is sleeved with a telescopic cover (14), one end of the telescopic cover (14) is fixed to the end of the U-shaped tube (11), and the other end of the telescopic cover (14) is fixedly connected to a sealing ring (15), and the sealing ring (15) is sleeved on the side wall of the electric heating rod (13). , and the movement of the sealing ring (15) is driven by a pulling mechanism (2), a water supply pipe (20) is fixedly connected to the side wall of the shell (1), and a water inlet pipe (21) is fixedly connected between the water supply pipe (20) and the U-shaped tube (11), the other end of the water supply pipe (20) is fixedly connected to a fixed box (19), and the side wall of the fixed box (19) is fixedly connected to a connecting pipe (18), the other end of the connecting pipe (18) is fixedly connected to a water inlet valve (17), and a water outlet valve (22) is fixedly connected to the side wall of the shell (1), and a water outlet pipe (16) is fixedly connected between the water outlet valve (22) and the U-shaped tube (11); The pulling mechanism (2) comprises an L-shaped plate (201) fixedly connected to the top of the housing (1), and the bottom of the L-shaped plate (201) is rotatably connected to a winding wheel (203) via a rotating shaft (202), two symmetrically arranged pull ropes (204) are wound around the side wall of the winding wheel (203), and the side wall of each sealing ring (15) is fixedly connected to a connecting block (205), the other end of the pull rope (204) passes through the U-shaped tube (11) and is fixed to the side wall of the connecting block (205), the side wall of the housing (1) is provided with a guide mechanism (8) for guiding the pull rope (204), and the rotation of the rotating shaft (202) is driven by a driving mechanism (3); The driving mechanism (3) comprises a gear (301) fixedly sleeved on the side wall of the rotating shaft (202), and the side wall of the L-shaped plate (201) is connected to a rack (302) via a reset mechanism (4), the rack (302) is meshed with the gear (301), and the movement of the rack (302) is driven by a driving mechanism (5); The reset mechanism (4) comprises two symmetrically arranged fixing blocks (401) fixedly connected to the side walls of the L-shaped plate (201), and the opposite side walls of the two fixing blocks (401) are fixedly connected to two symmetrically arranged guide rods (402), the side walls of each of the guide rods (402) are sleeved with a slider (403), the slider (403) is fixed to the side wall of the rack (302), and the side wall of each of the guide rods (402) is sleeved with a second spring (404); The pushing mechanism (5) comprises a rotating rod (504) rotatably connected to the top of the fixed box (19), and a pointer (505) is fixedly connected to the side wall of the rotating rod (504), a slide groove (506) is provided on the top of the pointer (505), and a connecting frame (501) is fixedly connected to the side wall of the rack (302), a pushing pin (507) is fixedly connected to the bottom of the connecting frame (501), and the pushing pin (507) is inserted into the slide groove (506), a power mechanism (7) for driving the rotating rod (504) to rotate is arranged in the fixed box (19), and an indicating mechanism (6) for indicating the rotation angle of the pointer (505) is arranged on the side wall of the fixed box (19); The power mechanism (7) comprises a driving shaft (701) rotatably connected to the fixed box (19), wherein the upper end of the driving shaft (701) is fixed to the lower end of the rotating rod (504), and a baffle (702) is fixedly connected to the side wall of the driving shaft (701); The indicating mechanism (6) comprises an L-shaped frame (601) fixedly connected to a side wall of a fixed box (19), and a curved plate (602) is fixedly connected to the side wall of the L-shaped frame (601), a scale mark (603) is provided on the curved plate (602), and a detection mechanism (9) for detecting the scale mark (603) indicated by the pointer (505) is provided on the side wall of the fixed box (19); The detection mechanism (9) comprises a mounting plate (901) fixedly connected to the side wall of the fixed box (19), and a visual sensor (902) is fixedly inserted on the top of the mounting plate (901).

2. The instant heater according to claim 1, characterized in that: A first spring (10) is sleeved on the side wall of the electric heating rod (13), and two ends of the first spring (10) are respectively fixed to the sealing ring (15) and the end of the U-shaped tube (11).

3. The instant heater according to claim 2, characterized in that: The guide mechanism (8) comprises a guide block (801) fixedly connected to the top of the shell (1), and a pull rope (204) is arranged to pass through the side wall of the guide block (801), the side wall of the shell (1) is fixedly connected to two groups of symmetrically arranged support blocks (802), and the number of each group of support blocks (802) is two, and the side wall of each group of the support blocks (802) is rotatably connected to a guide wheel (803), and the pull rope (204) slides on the side wall of the guide wheel (803).

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