Screw heater with overheating protection function

Abstract

The invention relates to the technical field of screw heaters, and discloses a screw heater with an overheating protection function, which comprises a screw heater, the surface of the screw heater is fixedly connected with a fixed bracket, the bottom of the fixed bracket is fixedly connected with a support plate, and the screw heater also comprises a heat dissipation part, and the heat dissipation part comprises a connecting pipe, the end of the connecting pipe communicates with the end of the screw heater, and the end, away from the screw heater, of the connecting pipe communicates with a heat dissipation frame. According to the screw heater, plastic is heated, when the temperature in the screw heater is too high, the heat dissipation component is started to start working, airflow generated by the heat dissipation component enters the screw heater and cools the screw heater, the airflow entering the screw heater is exhausted through the exhaust component, and the heat dissipation effect is improved. And the heat dissipation component can push the exhaust component to rotate during rotation, and the exhaust component can collect high-temperature airflow in the screw heater and exhaust the high-temperature airflow out of the outer end of the screw heater during operation.

Description

Technical Field

[0001] The invention relates to the technical field of screw heaters, in particular to a screw heater with an overheating protection function. Background Art

[0002] Screw heater is a device used to heat materials or bolts. It is usually composed of three parts: heater body, heating tube and temperature control system. The heating tube usually adopts electric heating to convert electrical energy into thermal energy, so as to heat the materials in the screw machine. Screw heater has the characteristics of efficient heating, good stability, wide application range and easy maintenance. Screw heater is suitable for heating various materials and can meet the processing needs of different users. For example, screw heaters are widely used in chemical fiber screws, woven bag drawing machines, plastic heating, extruders and other equipment.

[0003] When the screw heater is used to heat the plastic, the screw heater needs to operate for a long time and needs to continuously provide heat during operation, which can easily cause the internal temperature of the screw heater to be too high. Excessive temperature can cause damage to the plastic during the heating operation. At present, the heat dissipation of the screw heater is generally carried out by a fan. The wind generated by the fan will also increase the temperature after contacting with the high temperature, resulting in poor heat dissipation effect of the fan. Summary of the invention

[0004] The object of the present invention is to provide a screw heater with an overheat protection function to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a screw heater with an overheat protection function, comprising a screw heater, a surface of the screw heater is fixedly connected to a fixed bracket, a bottom of the fixed bracket is fixedly connected to a support plate, and further comprising:

[0007] A heat dissipation component, the heat dissipation component includes a connecting pipe, an end of the connecting pipe is connected to an end of the screw heater, an end of the connecting pipe away from the screw heater is connected to a heat dissipation frame, an end of the heat dissipation frame away from the connecting pipe is connected to a fixing frame, and an end of the fixing frame away from the heat dissipation frame is provided with an air inlet pipe;

[0008] An adjusting component, the adjusting component comprising a moving frame, the inner wall of the moving frame being slidably connected to the surface of the air inlet pipe, a sliding rod being fixedly connected to the upper surface of the moving frame, and a connecting plate being fixedly connected to one end of the sliding rod away from the moving frame;

[0009] An exhaust component includes a rotating rod, a surface of the rotating rod is fixedly connected to an air outlet rack, a surface of the air outlet rack is connected to an exhaust rack, a surface of the exhaust rack is fixedly connected to a disc, a surface of the disc is rotatably connected to an inner wall of the screw heater, and an end of the exhaust rack passes through the disc and extends to the outer end of the screw heater.

[0010] Further, the heat dissipation component includes a round frame, the round frame is connected to the end of the air inlet pipe, the surface of the round frame is connected to a bent pipe, the end of the bent pipe away from the round frame is connected to the heat dissipation frame, the inner wall of the fixed frame is fixedly connected to a motor, the output end of the motor is fixedly connected to a fan blade, and the bottom of the air inlet pipe is connected to a cooling pipe;

[0011] One end of the cooling pipe away from the air inlet pipe is connected to a refrigeration device, and the bottom of the refrigeration device is fixedly connected to the top of the support plate.

[0012] Furthermore, the fan blades are located inside the heat dissipation frame, the circular frame is located at one end of the air inlet pipe close to the fixed frame, the number of the bent pipes is four, and the four bent pipes are arranged in a circle with the circular frame as the center, and the refrigeration device is located below the heat dissipation frame.

[0013] Further, the regulating component comprises a sealing ring, the surface of the sealing ring is fixedly connected to the inner wall of the connecting pipe, the inner wall of the sealing ring is slidably connected with a conical sealing block, the inner wall of the conical sealing block is provided with a sliding hole, the surface of the conical sealing block is fixedly connected to the end of the connecting plate, the surface of the movable frame is fixedly connected with a pull rod, the end of the pull rod away from the movable frame is fixedly connected with a sliding rod, the end of the sliding rod away from the pull rod is fixedly connected with a conical block, and the inner wall of the intake pipe is fixedly connected with a conical hole ring;

[0014] A push plate is fixedly connected to the bottom of the movable frame, an end of the push plate away from the movable frame is fixedly connected to an electric push rod, and an end of the electric push rod away from the push plate is fixedly connected to the top of the refrigeration device.

[0015] Furthermore, the connecting plate is located inside the heat dissipation frame, and one end of the sliding rod away from the movable frame passes through the heat dissipation frame and extends to the inside of the heat dissipation frame. There are four sliding rods, and the four sliding rods are arranged in a circle with the movable frame as the center.

[0016] Furthermore, one end of the sliding rod away from the pull rod passes through the intake pipe and extends to the inside of the intake pipe, the surface of the conical block contacts the inner wall of the conical hole ring, and the end of the connecting plate away from the sliding rod extends to the inside of the connecting pipe.

[0017] Further, the exhaust component includes an extrusion ring, the surface of the extrusion ring is fixedly connected to the inner wall of the screw heater, the inner wall of the extrusion ring is fixedly connected with a semicircular block, the surface of the air outlet frame is connected with a stabilizing frame, the end of the stabilizing frame away from the air outlet frame is connected with a rotating ring, the surface of the rotating ring is fixedly connected with a tripod, the inner wall of the tripod is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a contact block, and the end of the contact block away from the sliding groove is fixedly connected with a triangular plate;

[0018] The bottom of the triangular plate is fixedly connected to a round rod, the bottom of the round rod is fixedly connected to a through-hole plate, the bottom of the triangular plate is fixedly connected to a spring, one end of the spring away from the triangular plate is fixedly connected to the inner wall of the tripod, an air inlet hole is opened on the surface of the rotating ring, and the surface of the rotating ring is fixedly connected to an air gathering frame.

[0019] Furthermore, one end of the tripod away from the rotating ring contacts the inner wall of the extrusion ring, the surface of the semicircular block matches the inner wall of the tripod, one end of the round rod away from the triangular plate passes through the rotating ring and extends to the inside of the rotating ring, the surface of the through-hole plate contacts the inner wall of the stabilizing frame, the inner wall of the gas gathering frame corresponds to the inner wall of the air inlet, the end of the rotating rod is fixedly connected to the output end of the motor, and the surface of the rotating rod is slidably connected to the inner wall of the sliding hole.

[0020] The present invention has the following beneficial effects:

[0021] The screw heater of the present invention heats the plastic. When the temperature inside the screw heater is too high, the heat dissipation component is started to start working. The airflow generated by the heat dissipation component will enter the interior of the screw heater and cool it. The airflow entering the interior of the screw heater will be discharged through the exhaust component, and the heat dissipation component will push the exhaust component to rotate when rotating. When the exhaust component is in operation, the high-temperature airflow inside the screw heater will be collected and discharged out of the outer end of the screw heater. An adjusting component is provided inside the heat dissipation component. The adjusting component can adjust the size of the airflow entering the interior of the screw heater, and can be adjusted accordingly according to the temperature inside the screw heater to avoid the temperature inside the screw heater being too low to affect the heating effect of the plastic.

[0022] The cold air generated by the refrigeration device of the present invention will enter the interior of the air inlet pipe through the cooling pipe, and the cold air entering the interior of the air inlet pipe will enter the interior of the heat dissipation frame through the connection between the round frame and the bent pipe. At this time, the motor is started to drive the fan blades to rotate inside the heat dissipation frame. When the fan blades rotate, they push the cold air to flow into the interior of the screw heater, so that the cold air can quickly enter the interior of the screw heater for cooling it, thereby preventing the temperature inside the screw heater from being too high and causing damage to the plastic parts.

[0023] The present invention starts the electric push rod to push the push plate to move. When the push plate moves, it pushes the moving frame to slide on the surface of the air inlet pipe and pushes the pull rod to move. When the pull rod moves, it pushes the conical block to separate from the inner wall of the conical hole ring through the sliding rod. At the same time, the moving frame will drive the sliding rod to move. When the sliding rod moves, it pushes the conical sealing block to separate from the inner wall of the sealing ring through the connecting plate, thereby adjusting the air flow between the connecting pipe and the inside of the air inlet pipe, avoiding that the cold air entering the screw heater is too large, resulting in the internal temperature being too low, affecting the heating effect on the plastic parts. When the conical sealing block is completely separated from the inner wall of the sealing ring, the conical block will also be completely separated from the inner wall of the conical hole ring, thereby increasing the air intake of the connecting pipe, and further improving the cooling effect on the screw heater.

[0024] When the motor of the present invention rotates, it drives the air outlet frame to rotate through the rotating rod. When the air outlet frame rotates, it drives the rotating ring to rotate through the stabilizing frame. When the rotating ring rotates, the hot air inside the screw heater will enter the inside of the rotating ring through the gas gathering frame, and enter the inside of the air outlet frame through the stabilizing frame, and be discharged from the outer end of the screw heater through the air exhaust frame for heat dissipation. When the rotating ring rotates, it pushes the triangular plate to contact the semicircular block. The contact between the triangular plate and the semicircular block will push the through-hole plate to move toward the inside of the stabilizing frame through the round rod. When the through-hole plate moves, it pushes the airflow inside the stabilizing frame to quickly enter the inside of the air outlet frame, thereby further improving the heat dissipation efficiency of the screw heater.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic cross-sectional view of the screw heater of the present invention;

[0029] Figure 3 It is a schematic diagram of the overall structure of the heat dissipation component of the present invention;

[0030] Figure 4 It is a schematic diagram of the overall structure of the adjusting component of the present invention;

[0031] Figure 5 Another structural schematic diagram of the adjusting component of the present invention;

[0032] Figure 6 It is a schematic diagram of the overall structure of the exhaust component of the present invention;

[0033] Figure 7 Another schematic diagram of the structure of the exhaust component of the present invention;

[0034] Figure 8 For the present invention Figure 7 A magnified schematic diagram of part A in FIG.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] In the figure: 1, screw heater; 2, fixed bracket; 3, support plate; 4, heat dissipation component; 5, adjustment component; 6, exhaust component; 10, connecting pipe; 11, heat dissipation frame; 12, fan blade; 13, fixed frame; 14, round frame; 15, air inlet pipe; 16, motor; 17, elbow pipe; 18, cooling pipe; 19, refrigeration device; 20, sealing ring; 21, connecting plate; 22, moving frame; 23, pull rod; 24, push plate; 25, slide rod; 26, Electric push rod; 27, conical sealing block; 28, sliding hole; 29, conical block; 30, conical hole ring; 31, sliding rod; 40, rotating rod; 41, air outlet frame; 42, exhaust frame; 43, disc; 44, extrusion ring; 45, semicircular block; 46, rotating ring; 47, stabilizing frame; 48, slide groove; 49, contact block; 50, triangular plate; 51, tripod; 52, spring; 53, through-hole plate; 54, round rod; 55, air inlet; 56, air gathering frame. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figure 1-Figure 8As shown, the present invention is a screw heater with an overheating protection function, including a screw heater 1, a fixed bracket 2 is fixedly connected to the surface of the screw heater 1, the screw heater 1 of the present invention heats the plastic, when the temperature inside the screw heater 1 is too high, the heat dissipation component 4 is started to start operation, the airflow generated by the heat dissipation component 4 will enter the inside of the screw heater 1, and cool it, the airflow entering the inside of the screw heater 1 will be discharged through the exhaust component 6, and the heat dissipation component 4 will push the exhaust component 6 to rotate when rotating, the exhaust component 6 will collect the high-temperature airflow inside the screw heater 1 and discharge it from the outer end of the screw heater 1 when operating, an adjusting component 5 is arranged inside the heat dissipation component 4, the adjusting component 5 can adjust the size of the airflow entering the inside of the screw heater 1, and can be adjusted accordingly according to the temperature inside the screw heater 1 to avoid the temperature inside the screw heater 1 being too low to affect the heating effect of the plastic, the bottom of the fixed bracket 2 is fixedly connected with a support plate 3, and also includes:

[0039] The heat dissipation component 4 includes a connecting pipe 10, an end of the connecting pipe 10 is connected to an end of the screw heater 1, an end of the connecting pipe 10 away from the screw heater 1 is connected to a heat dissipation frame 11, an end of the heat dissipation frame 11 away from the connecting pipe 10 is connected to a fixing frame 13, and an end of the fixing frame 13 away from the heat dissipation frame 11 is provided with an air inlet pipe 15;

[0040] The adjusting component 5 includes a moving frame 22, the inner wall of the moving frame 22 is slidably connected to the surface of the air inlet pipe 15, the upper surface of the moving frame 22 is fixedly connected to a slide bar 25, and one end of the slide bar 25 away from the moving frame 22 is fixedly connected to a connecting plate 21;

[0041] The exhaust component 6 includes a rotating rod 40, the surface of the rotating rod 40 is fixedly connected to an air outlet frame 41, the surface of the air outlet frame 41 is connected to an exhaust frame 42, the surface of the exhaust frame 42 is fixedly connected to a disc 43, the surface of the disc 43 is rotatably connected to the inner wall of the screw heater 1, and the end of the exhaust frame 42 passes through the disc 43 and extends to the outer end of the screw heater 1.

[0042] The heat dissipation component 4 includes a round frame 14, which is connected to the end of the air inlet pipe 15, and the surface of the round frame 14 is connected to a bent pipe 17. The cold air generated by the refrigeration device 19 of the present invention will enter the interior of the air inlet pipe 15 through the cooling pipe 18, and the cold air entering the interior of the air inlet pipe 15 will enter the interior of the heat dissipation frame 11 through the connection between the round frame 14 and the bent pipe 17. At this time, the motor 16 is started to drive the fan blades 12 to rotate inside the heat dissipation frame 11. The fan blades 12 push the cold air to flow into the screw heater 1 when rotating, so that the cold air can quickly enter the interior of the screw heater 1 to cool it, thereby preventing the temperature inside the screw heater 1 from being too high and causing damage to the plastic parts. The end of the bent pipe 17 away from the round frame 14 is connected to the heat dissipation frame 11, the inner wall of the fixed frame 13 is fixedly connected to the motor 16, the output end of the motor 16 is fixedly connected to the fan blades 12, and the bottom of the air inlet pipe 15 is connected to the cooling pipe 18;

[0043] One end of the cooling pipe 18 away from the air inlet pipe 15 is connected to a refrigeration device 19 , and the bottom of the refrigeration device 19 is fixedly connected to the top of the support plate 3 .

[0044] The fan blades 12 are located inside the heat dissipation frame 11 , the round frame 14 is located at one end of the air inlet pipe 15 close to the fixed frame 13 , there are four curved pipes 17 , and the four curved pipes 17 are arranged in a circle with the round frame 14 as the center. The refrigeration device 19 is located below the heat dissipation frame 11 .

[0045] The adjusting component 5 includes a sealing ring 20, the surface of the sealing ring 20 is fixedly connected to the inner wall of the connecting pipe 10, the inner wall of the sealing ring 20 is slidably connected with a conical sealing block 27, the inner wall of the conical sealing block 27 is provided with a sliding hole 28, the surface of the conical sealing block 27 is fixedly connected to the end of the connecting plate 21, the surface of the moving frame 22 is fixedly connected to a pull rod 23, the end of the pull rod 23 away from the moving frame 22 is fixedly connected to a sliding rod 31, the end of the sliding rod 31 away from the pull rod 23 is fixedly connected to a conical block 29, and the inner wall of the intake pipe 15 is fixedly connected to a conical hole ring 30;

[0046] A push plate 24 is fixedly connected to the bottom of the movable frame 22 , an end of the push plate 24 away from the movable frame 22 is fixedly connected to an electric push rod 26 , and an end of the electric push rod 26 away from the push plate 24 is fixedly connected to the top of the refrigeration device 19 .

[0047] The connecting plate 21 is located inside the heat dissipation frame 11. The present invention starts the electric push rod 26 to push the push plate 24 to move. When the push plate 24 moves, it pushes the moving frame 22 to slide on the surface of the intake pipe 15, and pushes the pull rod 23 to move. When the pull rod 23 moves, it pushes the conical block 29 to separate from the inner wall of the conical hole ring 30 through the sliding rod 31. At the same time, the moving frame 22 drives the sliding rod 25 to move. When the sliding rod 25 moves, it pushes the conical sealing block 27 to separate from the inner wall of the sealing ring 20 through the connecting plate 21, thereby controlling the air flow inside the connecting pipe 10 and the intake pipe 15. Adjustment is performed to avoid a large amount of cold air entering the screw heater 1, which may cause the internal temperature to be too low and affect the heating effect on the plastic parts. When the conical sealing block 27 is completely separated from the inner wall of the sealing ring 20, the conical block 29 will also be completely separated from the inner wall of the conical hole ring 30, thereby increasing the air intake of the connecting pipe 10 and further improving the cooling effect on the screw heater 1. The end of the sliding rod 25 away from the movable frame 22 passes through the heat dissipation frame 11 and extends to the interior of the heat dissipation frame 11. There are four sliding rods 25, and the four sliding rods 25 are arranged around the movable frame 22 as the center circle.

[0048] One end of the sliding rod 31 away from the pull rod 23 passes through the intake pipe 15 and extends to the inside of the intake pipe 15 , the surface of the conical block 29 contacts the inner wall of the conical hole ring 30 , and one end of the connecting plate 21 away from the sliding rod 25 extends to the inside of the connecting pipe 10 .

[0049] The exhaust component 6 includes an extrusion ring 44, the surface of which is fixedly connected to the inner wall of the screw heater 1, a semicircular block 45 is fixedly connected to the inner wall of the extrusion ring 44, a stabilizing frame 47 is connected to the surface of the air outlet frame 41, an end of the stabilizing frame 47 away from the air outlet frame 41 is connected to a rotating ring 46, a surface of the rotating ring 46 is fixedly connected to a tripod 51, a slide groove 48 is provided on the inner wall of the tripod 51, a contact block 49 is slidably connected to the inner wall of the slide groove 48, and a triangular plate 50 is fixedly connected to the end of the contact block 49 away from the slide groove 48;

[0050] A round rod 54 is fixedly connected to the bottom of the triangular plate 50, a through-hole plate 53 is fixedly connected to the bottom of the round rod 54, a spring 52 is fixedly connected to the bottom of the triangular plate 50, one end of the spring 52 away from the triangular plate 50 is fixedly connected to the inner wall of the tripod 51, an air inlet hole 55 is opened on the surface of the rotating ring 46, and a gas gathering frame 56 is fixedly connected to the surface of the rotating ring 46.

[0051] One end of the tripod 51 away from the rotating ring 46 contacts the inner wall of the extrusion ring 44, the surface of the semicircular block 45 is adapted to the inner wall of the tripod 51, and one end of the round rod 54 away from the triangular plate 50 penetrates the rotating ring 46 and extends to the inside of the rotating ring 46. When the motor 16 of the present invention rotates, the outlet frame 41 is driven to rotate through the rotating rod 40, and when the outlet frame 41 rotates, the rotating ring 46 is driven to rotate through the stabilizing frame 47. When the rotating ring 46 rotates, the hot air inside the screw heater 1 will enter the inside of the rotating ring 46 through the gas collecting frame 56, and enter the inside of the outlet frame 41 through the stabilizing frame 47, and be discharged from the screw heater 1 through the exhaust frame 42. The outer end of the screw heater 1 is subjected to heat dissipation treatment. When rotating, the rotating ring 46 pushes the triangular plate 50 to contact the semicircular block 45. The contact between the triangular plate 50 and the semicircular block 45 will push the through-hole plate 53 to move toward the inside of the stabilizing frame 47 through the round rod 54. When moving, the through-hole plate 53 pushes the airflow inside the stabilizing frame 47 to quickly enter the inside of the air outlet frame 41, further improving the heat dissipation efficiency of the screw heater 1. The surface of the through-hole plate 53 contacts the inner wall of the stabilizing frame 47, and the inner wall of the air gathering frame 56 corresponds to the inner wall of the air inlet hole 55. The end of the rotating rod 40 is fixedly connected to the output end of the motor 16, and the surface of the rotating rod 40 is slidably connected to the inner wall of the sliding hole 28.

[0052] When in use, the screw heater 1 heats the plastic. When the temperature inside the screw heater 1 is too high, the heat dissipation component 4 is started to start working. The airflow generated by the heat dissipation component 4 will enter the interior of the screw heater 1 and cool it down. The airflow entering the interior of the screw heater 1 will be discharged through the exhaust component 6, and the heat dissipation component 4 will push the exhaust component 6 to rotate when rotating. The exhaust component 6 will collect the high-temperature airflow inside the screw heater 1 and discharge it out of the outer end of the screw heater 1 when working. An adjustment component 5 is provided inside the heat dissipation component 4. The adjustment component 5 can adjust the size of the airflow entering the interior of the screw heater 1, and can be adjusted accordingly according to the temperature inside the screw heater 1 to avoid the screw The temperature inside the heater 1 is too low, which affects the heating effect of the plastic. The cold air generated by the refrigeration device 19 will enter the interior of the air inlet pipe 15 through the cooling pipe 18. The cold air entering the interior of the air inlet pipe 15 will enter the interior of the heat dissipation frame 11 through the connection between the round frame 14 and the bent pipe 17. At this time, the motor 16 is started to drive the fan blades 12 to rotate inside the heat dissipation frame 11. The fan blades 12 push the cold air to flow into the screw heater 1 when rotating, so that the cold air can quickly enter the interior of the screw heater 1 to cool it down, avoiding the damage of the plastic parts caused by the excessive temperature inside the screw heater 1. The electric push rod 26 is started to push the push plate 24 to move. When the push plate 24 moves, it pushes the movable frame 22 to slide on the surface of the air inlet pipe 15, and pushes the pull rod 26 when moving. The rod 23 moves, and the pull rod 23 pushes the conical block 29 to separate from the inner wall of the conical hole ring 30 through the sliding rod 31 when moving. At the same time, the moving frame 22 will drive the sliding rod 25 to move. When the sliding rod 25 moves, it pushes the conical sealing block 27 to separate from the inner wall of the sealing ring 20 through the connecting plate 21, thereby adjusting the air flow inside the connecting pipe 10 and the air intake pipe 15 to avoid the large amount of cold air entering the screw heater 1, which causes the temperature inside to be too low and affects the heating effect on the plastic parts. When the conical sealing block 27 is completely separated from the inner wall of the sealing ring 20, the conical block 29 is also completely separated from the inner wall of the conical hole ring 30, thereby increasing the air intake of the connecting pipe 10 and further improving the cooling effect on the screw heater 1. When the motor 16 rotates The air outlet frame 41 is driven to rotate by the rotating rod 40, and the air outlet frame 41 drives the rotating ring 46 to rotate through the stabilizing frame 47 when rotating. When the rotating ring 46 rotates, the hot air inside the screw heater 1 will enter the inside of the rotating ring 46 through the gas gathering frame 56, and enter the inside of the air outlet frame 41 through the stabilizing frame 47, and be discharged from the outer end of the screw heater 1 through the exhaust frame 42 for heat dissipation. When rotating, the rotating ring 46 pushes the triangular plate 50 to contact the semicircular block 45. The contact between the triangular plate 50 and the semicircular block 45 will push the through-hole plate 53 to move toward the inside of the stabilizing frame 47 through the round rod 54. When moving, the through-hole plate 53 pushes the airflow inside the stabilizing frame 47 to quickly enter the inside of the air outlet frame 41, thereby further improving the heat dissipation efficiency of the screw heater 1.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A screw heater with an overheat protection function, comprising a screw heater (1), a fixed bracket (2) being fixedly connected to the surface of the screw heater (1), a support plate (3) being fixedly connected to the bottom of the fixed bracket (2), characterized in that: Also includes: A heat dissipation component (4), the heat dissipation component (4) comprising a connecting pipe (10), an end of the connecting pipe (10) being in communication with an end of the screw heater (1), an end of the connecting pipe (10) away from the screw heater (1) being in communication with a heat dissipation frame (11), an end of the heat dissipation frame (11) away from the connecting pipe (10) being in communication with a fixing frame (13), and an end of the fixing frame (13) away from the heat dissipation frame (11) being provided with an air inlet pipe (15); An adjusting component (5), the adjusting component (5) comprising a movable frame (22), the inner wall of the movable frame (22) being slidably connected to the surface of the air inlet pipe (15), a sliding rod (25) being fixedly connected to the upper surface of the movable frame (22), and a connecting plate (21) being fixedly connected to one end of the sliding rod (25) away from the movable frame (22); An exhaust component (6), the exhaust component (6) comprising a rotating rod (40), the surface of the rotating rod (40) being fixedly connected to an air outlet frame (41), the surface of the air outlet frame (41) being connected to an exhaust frame (42), the surface of the exhaust frame (42) being fixedly connected to a disc (43), the surface of the disc (43) being rotatably connected to the inner wall of the screw heater (1), and the end of the exhaust frame (42) passing through the disc (43) and extending to the outer end of the screw heater (1).

2. The screw heater with overheat protection function according to claim 1, characterized in that: The heat dissipation component (4) comprises a round frame (14), the round frame (14) and the end of the air inlet pipe (15) are connected to each other, the surface of the round frame (14) is connected to a bent pipe (17), the end of the bent pipe (17) away from the round frame (14) is connected to the heat dissipation frame (11), the inner wall of the fixed frame (13) is fixedly connected to a motor (16), the output end of the motor (16) is fixedly connected to a fan blade (12), and the bottom of the air inlet pipe (15) is connected to a cooling pipe (18); One end of the cooling pipe (18) away from the air inlet pipe (15) is connected to a refrigeration device (19), and the bottom of the refrigeration device (19) is fixedly connected to the top of the support plate (3).

3. The screw heater with overheat protection function according to claim 2, characterized in that: The fan blades (12) are located inside the heat dissipation frame (11), the circular frame (14) is located at one end of the air inlet pipe (15) close to the fixed frame (13), the number of the bent pipes (17) is four, and the four bent pipes (17) are arranged around the circular frame (14) as the center circle, and the refrigeration device (19) is located below the heat dissipation frame (11).

4. The screw heater with overheat protection function according to claim 3, characterized in that: The regulating component (5) comprises a sealing ring (20), the surface of the sealing ring (20) is fixedly connected to the inner wall of the connecting pipe (10), the inner wall of the sealing ring (20) is slidably connected to a conical sealing block (27), the inner wall of the conical sealing block (27) is provided with a sliding hole (28), the surface of the conical sealing block (27) is fixedly connected to the end of the connecting plate (21), the surface of the moving frame (22) is fixedly connected to a pull rod (23), the end of the pull rod (23) away from the moving frame (22) is fixedly connected to a sliding rod (31), the end of the sliding rod (31) away from the pull rod (23) is fixedly connected to a conical block (29), and the inner wall of the intake pipe (15) is fixedly connected to a conical hole ring (30); The bottom of the movable frame (22) is fixedly connected to a push plate (24), one end of the push plate (24) away from the movable frame (22) is fixedly connected to an electric push rod (26), and one end of the electric push rod (26) away from the push plate (24) is fixedly connected to the top of the refrigeration device (19).

5. The screw heater with overheat protection function according to claim 4, characterized in that: The connecting plate (21) is located inside the heat dissipation frame (11), and one end of the sliding rod (25) away from the movable frame (22) passes through the heat dissipation frame (11) and extends into the interior of the heat dissipation frame (11). There are four sliding rods (25), and the four sliding rods (25) are arranged in a circle with the movable frame (22) as the center.

6. The screw heater with overheat protection function according to claim 5, characterized in that: One end of the sliding rod (31) away from the pull rod (23) passes through the intake pipe (15) and extends to the interior of the intake pipe (15), the surface of the conical block (29) contacts the inner wall of the conical hole ring (30), and one end of the connecting plate (21) away from the sliding rod (25) extends to the interior of the connecting pipe (10).

7. The screw heater with overheat protection function according to claim 6, characterized in that: The exhaust component (6) comprises an extrusion ring (44), the surface of the extrusion ring (44) is fixedly connected to the inner wall of the screw heater (1), the inner wall of the extrusion ring (44) is fixedly connected to a semicircular block (45), the surface of the air outlet frame (41) is connected to a stabilizing frame (47), the end of the stabilizing frame (47) away from the air outlet frame (41) is connected to a rotating ring (46), the surface of the rotating ring (46) is fixedly connected to a tripod (51), the inner wall of the tripod (51) is provided with a sliding groove (48), the inner wall of the sliding groove (48) is slidably connected to a contact block (49), and the end of the contact block (49) away from the sliding groove (48) is fixedly connected to a triangular plate (50); The bottom of the triangular plate (50) is fixedly connected to a round rod (54), the bottom of the round rod (54) is fixedly connected to a through-hole plate (53), the bottom of the triangular plate (50) is fixedly connected to a spring (52), one end of the spring (52) away from the triangular plate (50) is fixedly connected to the inner wall of the tripod (51), the surface of the rotating ring (46) is provided with an air inlet hole (55), and the surface of the rotating ring (46) is fixedly connected to a gas collecting frame (56).

8. The screw heater with overheat protection function according to claim 7, characterized in that: One end of the tripod (51) away from the rotating ring (46) contacts the inner wall of the extrusion ring (44), the surface of the semicircular block (45) matches the inner wall of the tripod (51), one end of the round rod (54) away from the triangular plate (50) passes through the rotating ring (46) and extends to the inside of the rotating ring (46), the surface of the through-hole plate (53) contacts the inner wall of the stabilizing frame (47), the inner wall of the gas gathering frame (56) corresponds to the inner wall of the air inlet (55), the end of the rotating rod (40) is fixedly connected to the output end of the motor (16), and the surface of the rotating rod (40) is slidably connected to the inner wall of the sliding hole (28).

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