Heating device and electric heating mosquito killer
By employing spiral heating wires and ultrasonic welding in electric mosquito repellent devices, the problems of cumbersome and costly manufacturing processes in existing electric mosquito repellent devices have been solved, resulting in electric mosquito repellent devices with high-efficiency assembly and high heat conduction efficiency.
Patent Information
- Application Number
- CN202422712256.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The existing electric mosquito repellent devices have complicated manufacturing processes, require a lot of equipment, occupy a large space, have high production costs, and have low heat conduction efficiency.
A spirally wound heating wire is fitted onto the outside of the heat-conducting pipe, and an outer cover is fitted onto the outside of the heat-conducting pipe and fixed by ultrasonic welding to ensure that the heating wire is tightly attached to the heat-conducting pipe. This assembly-type operation improves production efficiency and reduces costs.
This technology enables efficient assembly and heat transfer of the heating element, significantly improving production efficiency, reducing production costs, and ensuring high heat transfer efficiency.
Smart Images
Figure CN223844770U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric mosquito incense device technical field, especially a kind of heating device and electric mosquito incense device. BACKGROUND
[0002] Electric mosquito incense device has the advantages of no clear smoke and fire, safety and cleanliness, good use effect and easy use, gradually replaces traditional burning mosquito incense;Electric mosquito incense device is the main mosquito repellent equipment in family life, and a piece of metal heat-conducting plate is placed on heating component to heat mosquito incense liquid or mosquito incense sheet.Currently, the electric mosquito incense device commonly used in market mostly adopts PTC heating element.The traditional electric mosquito incense device heating element often adopts the process of ceramic glue filling, and its main process is to weld two wires on the two poles of PTC first, then fill appropriate amount of glue into ceramic, then put the welded PTC into ceramic, then put semi-finished product into oven for drying, then rivet the dried ceramic with plastic foot stand and aluminum pipe, so as to make a heating element finished product.This process needs PTC wire welding machine, glue filling machine, oven, aluminum pipe riveting machine and other equipment, which requires more equipment, occupies large space, has high production cost and complicated manufacturing process. SUMMARY
[0003] The utility model discloses a kind of heating device and electric mosquito incense device, to solve the problems existing in the prior art described above, electric heating wire that is spirally wound is sleeved on the outer lateral wall of heat pipe, outer cover is sleeved on the outer lateral wall of heat pipe, the lateral wall of outer cover accommodating cavity can compress electric heating wire on heat pipe, ensure higher heat conduction efficiency, foot line extends to the outside of support and is connected with power supply, significantly improve production efficiency by assembly type operation, reduce production cost.
[0004] To achieve the above object, the utility model provides the following scheme: provide a kind of heating device, comprising: support, including base and the heat pipe of setting on the base;Heating element, including the electric heating wire that is spirally wound and is arranged at the outer side of the heat pipe, two end portions of the electric heating wire are provided with the foot line that protrudes from the support;Outer cover, the outer cover is installed on the support, the accommodating cavity for being sleeved on the outer side of the heat pipe is opened in the outer cover, the lateral wall of the accommodating cavity compresses the electric heating wire on the heat pipe.
[0005] Preferably, the electric heating wire is in a tapered spiral structure, and the outer wall of the heat pipe is in a tapered structure matching the tapered spiral structure.
[0006] Preferably, the heat pipe, the electric heating wire and the outer cover are ultrasonically welded, and the outer wall surface of the outer cover matches an ultrasonic welding mold of an ultrasonic welding device.
[0007] Preferably, the heat-conducting pipe and the electric heating wire are ultrasonically welded, the outer wall surface of the heat-conducting pipe is matched with a first die of an ultrasonic welding device, the heat-conducting pipe and the outer cover are ultrasonically welded, and the outer wall surface of the outer cover is matched with a second die of the ultrasonic welding device.
[0008] Preferably, the outer cover is detachably connected with the support, and a protrusion for pressing the electric heating wire is arranged on a side wall of the accommodating cavity.
[0009] Preferably, a clamping hook groove is arranged on the base, and a clamping hook head matched with the base is arranged on the outer cover.
[0010] Preferably, a wire outlet slot is arranged on the base, the foot wire can pass through the wire outlet slot, an end of the outer cover facing the base is an abutting surface, and the abutting surface is attached to the base.
[0011] Preferably, a wire outlet hole is arranged on the outer cover, and the two foot wires pass out of the wire outlet slot and the wire outlet hole respectively.
[0012] The electric heating mosquito-repellent device comprises the heating device, a heating cavity for accommodating a liquid wick is arranged in the heat-conducting pipe, a through hole for the liquid wick to pass in is arranged at an end of the outer cover away from the base, and the through hole is axially aligned with the heating cavity in the heat-conducting pipe.
[0013] Preferably, a support foot plate is arranged on the base, and a mounting hole is arranged on the support foot plate.
[0014] The present application has the following technical effects compared with the prior art.
[0015] Firstly, in the heating device, the electric heating wire wound in a spiral shape is sleeved on the outer side wall of the heat-conducting pipe, the electric heating wire is tightly attached to the outer wall surface of the heat-conducting pipe, the outer cover is sleeved on the outer side wall of the heat-conducting pipe, the shape of the accommodating cavity in the outer cover is matched with the shape of the outer side wall of the heat-conducting pipe, the side wall of the accommodating cavity can press the electric heating wire tightly on the outer side wall of the heat-conducting pipe, the high heat conduction efficiency is ensured, the overall assembly operation of the heating device is completed, the outer cover can be fixed on the support through welding, insertion or anchoring, and the foot wire extends to the outer side of the support and is connected with the power supply.
[0016] Second, in the electric mosquito-repellent device, the heat-conducting pipe is provided with a heating cavity, the through hole of the outer cover is axially aligned with the heating cavity, the liquid wick can pass through the through hole into the heating cavity, the electric heating wire is powered to heat, in the production and manufacturing, only the electric heating wire wound in a spiral shape is sleeved and tightly attached to the outer side wall of the heat-conducting pipe 5, the outer cover is sleeved on the outer side wall of the heat-conducting pipe, the overall assembly of the electric mosquito-repellent device is completed, the outer cover is fixed on the support by welding, insertion or anchoring, the foot wire extends to the outside of the support and is connected with the power supply, the overall assembly of the electric mosquito-repellent device is completed, the assembly process is simple and reliable, the production efficiency is significantly improved, the whole process is automatically assembled by automatic equipment at one time, and the automation of the overall assembly is realized. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0018] Figure 1 It is a front view schematic diagram of the electric mosquito-repellent device of the present application.
[0019] Figure 2 It is a bottom view schematic diagram of the electric mosquito-repellent device of the present application.
[0020] Figure 3 It is a schematic diagram of each component of the electric mosquito-repellent device of the present application.
[0021] Figure 4 It is a sectional view structural schematic diagram of the electric mosquito-repellent device of the present application.
[0022] Figure 5 It is a schematic diagram of the electric mosquito-repellent device and the ultrasonic welding mold of the present application.
[0023] Figure 6 It is a schematic diagram of the electric mosquito-repellent device and the first mold of the present application.
[0024] 1, support; 2, heating element; 3, outer cover; 4, base; 5, heat-conducting pipe; 6, electric heating wire; 7, foot wire; 8, heating cavity; 9, ultrasonic welding mold; 10, through hole; 11, supporting foot plate; 12, mounting hole; 13, first mold; 14, clamping protrusion; 15, lapping table. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0026] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, clear and understandable, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0027] Embodiment one:
[0028] Please refer to Figures 1 to 6 In the present embodiment, a heating device is provided, which comprises a support 1, a heating element 2 and an outer cover 3. The support 1 comprises a base 4 and a heat conducting pipe 5, and the heat conducting pipe 5 is connected with the base 4. Preferably, the heat conducting pipe 5 is connected with the base 4 through screw threads, or the heat conducting pipe 5 is integrally formed with the base 4. The heating element 2 comprises an electric heating wire 6, which is spirally wound on the outer side wall of the heat conducting pipe 5. The electric heating wire 6 is preferably attached to the outer side wall of the heat conducting pipe 5. The heat conducting pipe 5 is preferably made of high-temperature-resistant plastic. The two end portions of the electric heating wire 6 are provided with foot wires 7, which can be led out to the outside of the support 1. The end portions of the foot wires 7 are connected with a power source. The outer cover 3 is installed on the support 1. The outer cover 3 is provided with a receiving cavity, and the outer cover 3 is sleeved on the outer side wall of the heat conducting pipe 5 through the receiving cavity. The side wall of the receiving cavity can press the electric heating wire 6 tightly against the outer side wall of the heat conducting pipe. The channel in the heat conducting pipe 5 forms a heating cavity 8.
[0029] Working principle: in the assembly, the spiral wound electric heating wire 6 is sleeved on the outer wall of the heat conducting pipe 5, the electric heating wire 6 and the heat conducting pipe 5 are preferably reinforced by welding, the electric heating wire 6 is preferably tightly attached to the outer wall of the heat conducting pipe 5, the outer cover 3 is sleeved on the outer wall of the heat conducting pipe 5, the shape of the accommodating cavity in the outer cover 3 matches the shape of the outer wall of the heat conducting pipe 5, the side wall of the accommodating cavity can press the electric heating wire 6 on the outer wall of the heat conducting pipe 5, and the heat conduction efficiency is high. Thus, the overall assembly of the heating device is completed, the outer cover 3 is fixed on the support 1 by welding, insertion, anchoring, the foot wire 7 at both ends of the electric heating wire 6 extends to the outer side of the support 1, the foot wire 7 can be connected with the power supply, and the foot wire 7 is preferably integrally formed with the electric heating wire 6. The overall assembly of the heating device is completed, the assembly process is simple and reliable, the production efficiency is significantly improved, the above operation can be automatically realized through a mechanical hand or other PLC control device, that is, the whole process is automatically assembled at one time by using automatic equipment, and the automation of the overall assembly operation is realized. The electric heating wire 6 can be in full contact with the heat conducting pipe 5, the power supply supplies power to the electric heating wire 6 through the foot wire 7, the electric heating wire 6 converts electric energy into heat energy, the heat energy on the electric heating wire 6 can be effectively transmitted to the side wall of the heat conducting pipe 5, the heat conduction efficiency is high, the heat conducting pipe 5 can be quickly heated, the heating of the heating cavity 8 in the heat conducting pipe 5 is completed, and the heating function of the heating device is completed.
[0030] In one embodiment, the electric heating wire 6 is in a conical spiral structure, and the outer wall of the heat conducting pipe 5 matches the shape of the electric heating wire 6; that is, the outer wall surface of the heat conducting pipe 5 is also a conical structure, and the heat conducting pipe 5 can tightly support the electric heating wire 6. The electric heating wire 6 is tightly attached to the outer wall of the heat conducting pipe 5.
[0031] In one embodiment, the heat-conducting tube 5, the electric heating wire 6 and the outer cover 3 are connected by ultrasonic welding, and the outer wall surface of the outer cover 3 is matched with a mold of the ultrasonic welding device. When ultrasonic welding is performed, the electric heating wire 6 is first assembled on the outer wall of the heat-conducting tube 5, the electric heating wire 6 is attached to the outer wall surface of the heat-conducting tube 5, the heat-conducting tube 5 is vertically arranged, the outer cover 3 is assembled on the outer wall of the heat-conducting tube 5, the electric heating wire 6 is pressed on the heat-conducting tube 5 by the outer cover 3, the ultrasonic welding mold 9 preferably welds the device from top to bottom, the ultrasonic welding mold 9 directly abuts against the outer wall surface of the outer cover 3, in operation, the ultrasonic welding mold 9 acts on the outer cover 3 by high-frequency vibration, so that the outer cover 3, the electric heating wire 6 and the heat-conducting tube 5 are subjected to high-frequency friction, the ultrasonic mold welds the device from top to bottom, so that the electric heating wire 6 can be embedded in the side wall of the outer cover 3 and the heat-conducting tube 5, the electric heating wire 6 is fully wrapped by the side wall of the outer cover 3 and the heat-conducting tube 5, the heat generated by the electric heating wire 6 can be efficiently transferred to the side wall of the heat-conducting tube 5, so as to heat the heating cavity 8 inside the heat-conducting tube 5, the outer cover 3 and the heat-conducting tube 5 are preferably made of high-temperature-resistant plastic, and the heat-conducting tube 5 has good heat-conducting efficiency. In addition, preferably, the bottom of the outer cover 3 is attached to the end surface of the base 4, a welding line is arranged at the bottom of the outer cover 3, the bottom of the outer cover 3 is welded with the base 4 by ultrasonic welding, so as to increase the stability of the whole device and make the heating device firm and reliable. Preferably, the ultrasonic welding mold 9 is in a planar structure or an inner recess structure, the ultrasonic welding mold 9 in the inner recess structure can be nested on the outside of the outer cover 3 to perform ultrasonic welding, as shown in Figure 5 .
[0032] In one embodiment, the heat-conducting tube 5 and the electric heating wire 6 are welded by ultrasonic waves, the outer wall surface 5 of the heat-conducting tube 5 is matched with a first mold 13 of the ultrasonic welding device, as shown in Figure 6 , in operation, the electric heating wire 6 sleeved on the outside of the heat-conducting tube 5 is first welded by the first mold 13, so that the electric heating wire 6 is embedded in the side wall of the heat-conducting tube 5, the electric heating wire 6 is wrapped by the side wall of the heat-conducting tube 5 to ensure high heat transfer efficiency. In the ultrasonic welding process, the first mold 13 generates high-frequency vibration and acts on the electric heating wire 6, the electric heating wire 6 and the heat-conducting tube 5 are subjected to high-frequency friction, high heat is generated by high-frequency friction, so that the electric heating wire 6 is embedded in the side wall of the heat-conducting tube 5. The outer wall surface of the outer cover 3 is matched with a second mold of the ultrasonic welding device, the outer cover 3 can be ultrasonically welded by the second mold, the second mold is preferably in a planar structure or an inner recess structure, the second mold in the inner recess structure can be sleeved on the outside of the outer cover 3. In operation, the electric heating wire 6 and the heat-conducting tube 5 are first welded by the first mold 13, then the outer cover 3 is sleeved on the outside of the heat-conducting tube 5, the outer cover 3 and the heat-conducting tube 5 are welded together by high-frequency vibration generated by the second mold, so as to complete the manufacturing of the heating device.
[0033] In one embodiment, the electric heating wire 6 is in a spiral conical structure, the outer wall of the heat conducting pipe 5 matches the shape of the electric heating wire 6, the heat conducting pipe 5 is also in a conical structure, preferably, the heat conducting pipe 5 is in interference fit with the electric heating wire 6, so that the electric heating wire 6 is tightly clamped on the heat conducting pipe 5, and the electric heating wire 6 is fully attached to the outer wall of the heat conducting pipe 5. The side wall of the accommodating cavity of the outer cover 3 is provided with a protrusion, and the outer cover 3 is also preferably in a conical structure, the accommodating cavity of the outer cover 3 matches the outer wall of the heat conducting pipe 5, when the outer cover 3 is assembled on the heat conducting pipe 5, the protrusion on the side wall of the accommodating cavity can press down the electric heating wire 6, the electric heating wire 6 in a spiral conical structure is pressed downward, so that the electric heating wire 6 is sleeved on the part of the heat conducting pipe 5 with larger size, as the electric heating wire 6 moves downward gradually, the clamping force between the electric heating wire 6 and the heat conducting pipe 5 is greater, the electric heating wire 6 is more closely attached to the heat conducting pipe 5, the heat generated by the electric heating wire 6 can be efficiently transferred to the heat conducting pipe 5, and a certain gap can be left between the electric heating wire 6 and the outer cover 3, so that the outer cover 3 can be detachably connected with the support 1. The electric heating wire 6 can be of different specifications and resistance values according to needs, and a lacquered electric heating wire 6 or a bare electric heating wire 6 can be used according to needs.
[0034] In the embodiment, the base 4 of the support 1 is provided with a clamping hook groove, the outer cover 3 is provided with a clamping hook head, and the clamping hook head of the outer cover 3 can hook the clamping hook groove, so that the outer cover 3 is fixed with the support 1. Of course, the support 1 and the base 4 can also be welded together.
[0035] In one embodiment, the base 4 is provided with a wire outlet slot, preferably two wire outlet slots, and the foot wire 7 at the two ends of the electric heating wire 6 is outwardly threaded from the wire outlet slot, so that the foot wire 7 can be electrically connected with a power supply. The end face of the bottom of the outer cover 3 directly faces the base 4, and the end face is an abutting face. The wire outlet slot is preferably arranged in the interior of the base 4, and the abutting face is attached to the top face of the base 4. The base 4 can stably support the outer cover 3, and can also ensure that the bottom of the outer cover 3 is well welded with the base 4, thereby increasing the stability of the whole device.
[0036] In one embodiment, the wire outlet slot is arranged on the base 4, and a wire outlet hole is also arranged on the outer cover 3. The foot wire 7 at the bottom of the electric heating wire 6 in a spiral winding is threaded from the wire outlet slot on the base 4, and the foot wire 7 at the top of the electric heating wire 6 is threaded from the wire outlet hole on the outer cover 3.
[0037] In one embodiment, the bottom of the cover 3 is provided with a clamping protrusion 14, and the bracket 1 is provided with a clamping groove, the clamping protrusion 14 can be inserted into the clamping groove, preferably, the clamping groove is arranged in the top surface of the base 4, forming a certain degree of sealing, ensuring the stability of the assembly of the cover 3 and the bracket 1. At the same time, the top of the cover 3 is provided with a lap table 15, and the top of the heat pipe 5 is provided with a lap groove, which can cooperate with the lap table 15. After assembly is completed, the lap table 15 can abut against the lap table 15 on the top of the heat pipe 5, forming a certain degree of sealing, and further ensuring the stability of the assembly of the cover 3 and the bracket 1.
[0038] Embodiment two:
[0039] Please refer to Figures 1 to 6 The embodiment provides an electric heating mosquito incense device, which comprises the heating device in embodiment one, a heating cavity 8 is arranged in the heat pipe 5, one end of the cover 3 is opened, and the cover 3 is sleeved on the heat pipe 5 through the opening. A through hole 10 is arranged on the side, away from the base 4, of the cover 3, and the through hole 10 is axially aligned with the heating cavity 8, preferably, the through hole 10 is coaxially arranged with the heating cavity 8, and the electric heating wire 6 can tightly abut against the outer wall surface of the heating cavity 8. In use, the liquid stick can be inserted into the heating cavity 8 through the through hole 10, the electric heating wire 6 is electrified to heat, and the liquid stick in the heating cavity 8 is heated, so that the liquid is evaporated and diffused into the external environment. In the embodiment, the base 4 is provided with a supporting foot plate 11, and the supporting foot plate 11 is provided with a mounting hole 12, which is used for the assembly of the electric heating mosquito incense device. In the manufacturing process of the electric heating mosquito incense device, the electric heating wire 6 wound in a spiral shape is sleeved on the outer side wall of the heat pipe 5, so that the electric heating wire 6 tightly abuts against the outer wall surface of the heat pipe 5. The cover 3 is sleeved on the outer side wall of the heat pipe 5, the shape of the accommodating cavity in the cover 3 matches the shape of the outer side wall of the heat pipe 5, and the side wall of the accommodating cavity tightly presses the electric heating wire 6 on the outer side wall of the heat pipe 5. The overall assembly of the electric heating mosquito incense device is completed, the cover 3 can be fixed on the bracket 1 in a welding, inserting or anchoring mode, the foot wire 7 at both ends of the electric heating wire 6 extends to the outer side of the bracket 1, the foot wire 7 can be connected with the power supply, and the foot wire 7 is preferably integrally formed with the electric heating wire 6. The overall assembly of the electric heating mosquito incense device is completed, the assembly process is simple and reliable, and the production efficiency is significantly improved. The above operation can be automatically realized by a mechanical hand or other PLC control device, that is, the whole process is automatically assembled by automatic equipment at one time, and the overall assembly operation is automated. The electric heating wire 6 can fully contact the heat pipe 5, the power supply supplies power to the electric heating wire 6 through the foot wire 7, the electric heating wire 6 converts electric energy into heat energy, the heat energy on the electric heating wire 6 can be effectively transmitted to the side wall of the heat pipe 5, the heat conduction efficiency is high, the heat pipe 5 can be quickly heated, and the liquid stick in the heating cavity 8 in the heat pipe 5 is heated.
[0040] It should be noted that, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.
[0041] The principles and implementation modes of the present application are described by applying specific examples in the present application. The above embodiment description is only used to help understand the method and core idea of the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there will be changes in specific implementation modes and application ranges. In conclusion, the content of the present application should not be understood as a limitation of the present application.
Claims
1. A heat generating device, characterized by, include: The bracket (1) includes a base (4) and a heat-conducting pipe (5) disposed on the base (4); The heating element (2) includes a heating wire (6) that is spirally wound on the outside of the heat-conducting tube (5), and the two ends of the heating wire (6) are provided with lead wires (7) that extend out of the bracket (1); The outer cover (3) is mounted on the bracket (1). The outer cover (3) has a cavity for fitting around the heat pipe (5). The sidewall of the cavity presses the heating wire (6) onto the heat pipe (5).
2. The heat generating device according to claim 1, characterized in that The heating wire (6) has a conical spiral structure, and the outer wall of the heat-conducting tube (5) is a conical structure that matches the conical spiral structure.
3. The heat generating device according to claim 1 or 2, characterized in that, The heat pipe (5), the heating wire (6), and the outer cover (3) are ultrasonically welded, and the outer wall surface of the outer cover (3) matches the ultrasonic welding mold (9) of the ultrasonic welding device.
4. The heat generating device according to claim 1 or 2, characterized by The heat-conducting pipe (5) and the heating wire (6) are ultrasonically welded together. The outer wall of the heat-conducting pipe (5) is matched with the first mold (13) of the ultrasonic welding device. The heat-conducting pipe (5) and the outer cover (3) are ultrasonically welded together. The outer wall of the outer cover (3) is matched with the second mold of the ultrasonic welding device.
5. The heat generating device of claim 2, wherein The outer cover (3) is detachably connected to the bracket (1), and the side wall of the accommodating cavity is provided with a protrusion for pressing down the heating wire (6).
6. The heat generating device according to claim 5, characterized in that The base (4) is provided with a snap-fit hook groove, and the outer cover (3) is provided with a snap-fit hook head that snaps into the base (4).
7. The heat generating device of claim 1, wherein The base (4) has a cable outlet groove, and the lead wire (7) can pass through the cable outlet groove. The end of the outer cover (3) facing the base (4) is an abutment surface, and the abutment surface is in contact with the base (4).
8. The heat generating device according to claim 7, characterized in that The outer cover has a cable outlet hole, and the two lead wires (7) pass through the cable outlet groove and the cable outlet hole respectively.
9. An electric mosquito repellent device, characterized by comprising: The heating device includes any one of claims 1-8, wherein the heat-conducting pipe (5) has a heating cavity (8) for accommodating a liquid core rod, and the outer cover (3) has a through hole (10) for the liquid core rod to pass through at one end away from the base (4), and the through hole (10) is axially aligned with the heating cavity (8) in the heat-conducting pipe (5).
10. The electric heating mosquito killer as claimed in claim 9, wherein The base (4) is provided with a support foot plate (11), and the support foot plate (11) is provided with mounting holes (12).