A wind channel type electric heater convenient to assemble and disassemble

Abstract

The utility model relates to electric heater technical field, concretely is a kind of air duct formula electric heater convenient to assemble and disassemble, including electric heater body, the electric heater body includes shell, heating mechanism is equipped on the shell upper portion, the heating mechanism includes junction box and several electric heating pipes, the shell top four corners are all equipped with connecting plate, and support plate is equipped between the top of same side two connecting plates, locking groove is opened symmetrically in the both sides of support plate, locking rod is slidably arranged in the locking groove, the top of locking rod top end is equipped with link plate, and pull plate is connected between the top of two link plates, the lower of pull plate is equipped with multiple locking mechanism, the heating mechanism of the utility model and shell do not need to be tightened and fixed using bolt one by one during installation process, so when disassembling, it also does not need to be disassembled by unscrewing bolt one by one, effectively shorten the time of installation and disassembly, improve work efficiency, and enhance the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of electric heater technology, specifically a duct-type electric heater that is easy to install and disassemble. Background Technology

[0002] Duct-type electric heaters are mainly used for heating air in ducts. Through the air supply system, the gas entering the duct-type electric heater is heated to a high temperature and pressure, and then discharged. The resulting hot air is dry, free of moisture, static electricity, conductivity, combustion, explosion, electrochemical corrosion, pollution, and is safe and reliable. It is widely used in aerospace, weaponry, chemical industry, power plant air conveying chute gasification air heating, and ash silo gasification air heating.

[0003] The existing duct-type electric heater uses multiple bolts to fix the heating mechanism to the shell. During installation, each bolt needs to be tightened. Later, when the heating mechanism is inspected, each bolt needs to be loosened and removed. The operation is cumbersome, time-consuming, labor-intensive, and inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide an easy-to-install and disassemble duct-type electric heater for existing devices, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A duct-type electric heater that is easy to install and disassemble includes an electric heater body. The electric heater body includes a housing. A heating mechanism is provided on the upper part of the housing. The heating mechanism includes a junction box and several electric heating tubes. The junction box is connected to a second mounting plate through a hollow conduit. A first mounting plate is connected to the bottom of the second mounting plate. The upper ends of the electric heating tubes pass through the first mounting plate, the second mounting plate, and the hollow conduit and are disposed in the junction box. The electric heating tubes at the bottom of the first mounting plate are placed inside the housing. Connecting plates are provided at the four corners of the top of the housing. A support plate is provided between the tops of two connecting plates on the same side. Locking grooves are symmetrically opened on both sides of the support plate. A locking rod is slidably disposed in the locking groove. A connecting plate is provided at the top of the locking rod. A pull plate is connected between the tops of two connecting plates. Multiple locking mechanisms are provided below the pull plate.

[0007] The locking mechanism includes a bearing column set on the support plate, a displacement groove is opened in the bearing column, a pressure plate is slidably connected in the displacement groove, a slide rod is connected to the top end face of the pressure plate, and the slide rod extends to the outside of the bearing column and connects to the top end face of the pull plate.

[0008] As a further embodiment of this utility model, the inner wall of the support plate is provided with a snap-fit ​​plate, and both sides of the second mounting plate are provided with snap-fit ​​grooves for the snap-fit ​​plate to be inserted.

[0009] As a further embodiment of this utility model, the top end face of the connecting plate is provided with a first locking groove for inserting a locking rod when the locking plate is locked in the locking groove, and a second locking groove for inserting a locking rod when the locking plate is disengaged from the locking groove.

[0010] As a further embodiment of this utility model, the top end face of the housing is provided with a mounting groove that matches the first mounting plate.

[0011] As a further embodiment of this utility model, both sides of the support plate are provided with vertical plates located outside the connecting plate, the bottom of the inner sidewall of the vertical plate is provided with a guide plate, and the outer sidewall of the connecting plate is provided with a guide groove that allows the guide plate to move.

[0012] As a further embodiment of this utility model, a spring located in a displacement groove is coaxially sleeved on the outer side of the slide rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The heating mechanism and housing of this invention do not require individual bolt tightening during installation, and therefore do not require individual bolt loosening during disassembly, effectively shortening installation and disassembly time, improving work efficiency, and enhancing ease of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the heating mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the shell of this utility model;

[0018] Figure 4 This is a schematic diagram of the connecting plate of this utility model;

[0019] Figure 5 This is a diagram showing the connection relationship between the support plate and the locking mechanism of this utility model;

[0020] Figure 6 This is a cross-sectional view of the locking mechanism of this utility model;

[0021] In the diagram: 1. Electric heater body; 11. Housing; 1101. Connecting plate; 1102. Support plate; 1103. Locking groove; 1104. Locking rod; 1105. Connecting plate; 1106. Pull plate; 1107. Snap-fit ​​plate; 1108. First locking groove; 1109. Second locking groove; 1110. Mounting groove; 1111. Vertical plate; 1112. Guide plate; 1113. Guide groove; 12. Heating mechanism; 1201. Junction box; 1202. Electric heating tube; 1203. Hollow conduit; 1204. Second mounting plate; 1205. First mounting plate; 1206. Snap-fit ​​groove; 13. Locking mechanism; 1301. Bearing column; 1302. Displacement groove; 1303. Pressure plate; 1304. Slide rod; 1305. Spring. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Example

[0025] refer to Figures 1-6A duct-type electric heater that is easy to install and disassemble includes an electric heater body 1. The electric heater body 1 includes a housing 11. A heating mechanism 12 is provided on the upper part of the housing 11. The heating mechanism 12 includes a junction box 1201 and a plurality of electric heating tubes 1202. The junction box 1201 is connected to a second mounting plate 1204 through a hollow conduit 1203. A first mounting plate 1205 is connected to the bottom of the second mounting plate 1204. The upper ends of the electric heating tubes 1202 pass through the first mounting plate 1205, the second mounting plate 1204 and the hollow conduit 1203 and are mounted in the junction box 1201. Inside the housing 11, the electric heating tube 1202 at the bottom of the first mounting plate 1205 is placed inside the housing 11. Connecting plates 1101 are fixedly connected to the four corners of the top of the housing 11. A support plate 1102 is provided between the tops of the two connecting plates 1101 on the same side. Locking grooves 1103 are symmetrically opened on both sides of the support plate 1102. A locking rod 1104 is slidably provided in the locking groove 1103. A connecting plate 1105 is fixedly connected to the top of the locking rod 1104. A pull plate 1106 is fixedly connected between the tops of the two connecting plates 1105. Multiple locking mechanisms 13 are provided below the pull plate 1106.

[0026] The locking mechanism 13 includes a bearing column 1301 fixedly connected to the support plate 1102. A displacement groove 1302 is provided in the bearing column 1301. A pressure plate 1303 is slidably connected in the displacement groove 1302. A slide rod 1304 is fixedly connected to the top end face of the pressure plate 1303. The slide rod 1304 extends to the outside of the bearing column 1301 and is fixedly connected to the top end face of the pull plate 1106.

[0027] Furthermore, the top end face of the housing 11 is provided with a mounting groove 1110 that matches the first mounting plate 1205. Through the arrangement of the first mounting plate 1205 and the mounting groove 1110, the initial connection between the heating mechanism 12 and the housing 11 is realized.

[0028] Furthermore, the inner wall of the support plate 1102 is provided with a snap-fit ​​plate 1107, and both sides of the second mounting plate 1204 are provided with snap-fit ​​grooves 1206 for the snap-fit ​​plate 1107 to be inserted into. Through the matching of the snap-fit ​​plate 1107 and the snap-fit ​​grooves 1206, the second mounting plate 1204 can be further locked, thereby ensuring that the heating mechanism 12 and the housing 11 are firmly installed.

[0029] Furthermore, the top end face of the connecting plate 1101 is provided with a first locking groove 1108 for the locking rod 1104 to be inserted when the locking plate 1107 is locked in the locking groove 1206, and a second locking groove 1109 for the locking rod 1104 to be inserted when the locking plate 1107 is disengaged from the locking groove 1206.

[0030] Furthermore, both sides of the support plate 1102 are provided with vertical plates 1111 located outside the connecting plate 1101. The bottom of the inner sidewall of the vertical plate 1111 is provided with a guide plate 1112. The outer sidewall of the connecting plate 1101 is provided with a guide groove 1113 that allows the guide plate 1112 to move. Through the setting of the guide plate 1112 and the guide groove 1113, the support plate 1102 always maintains the connection relationship with the connecting plate 1101, and at the same time, it can also guide the displacement of the support plate 1102.

[0031] Furthermore, a spring 1305 is coaxially sleeved on the outer side of the slide rod 1304 and located in the displacement groove 1302. One end of the spring 1305 is fixedly connected to the pressure plate 1303, and the other end of the spring is fixedly connected to the inner side wall of the displacement groove 1302.

[0032] The working principle of this utility model:

[0033] During installation, firstly, align the first mounting plate 1205 of the heating mechanism 12 with the mounting groove 1110 of the housing 11 and insert it to achieve initial connection between the heating mechanism 12 and the housing 11. Then, pull the pull plate 1106 upwards. The pull plate 1106 drives the slide rod 1304 and the pressure plate 1303 to move upwards simultaneously. At the same time, the pressure plate 1303 compresses the spring 1305 until the front end of the locking rod 1104 is completely retracted into the locking groove 1103. Next, move the support plate 1102 so that the snap-fit ​​plate 1107 on the inner side wall of the support plate 1102... Insert the rod into the snap-fit ​​groove 1206 of the second mounting plate 1204. At this time, the locking groove 1103 is connected to the first locking groove 1108. After the pull plate 1106 is released, the spring 1305 drives the pull plate 1106 to reset under the loss of external force, so that the locking rod 1104 is inserted into the first locking groove 1108 of the connecting plate 1101, thereby locking the support plate 1102. The snap-fit ​​plates 1107 on the two support plates 1102 further lock the second mounting plate 1204, ensuring that the heating mechanism 12 is firmly installed with the housing 11.

[0034] During disassembly, pull the pull plate 1106 upwards to fully retract the front end of the locking rod 1104 into the locking groove 1103. Then, move the support plate 1102 so that the snap-fit ​​plate 1107 on its inner side wall disengages from the snap-fit ​​groove 1206 of the second mounting plate 1204. At this time, the locking groove 1103 is connected to the second locking groove 1109. After releasing the pull plate 1106, the locking rod 1104 is inserted into the second locking groove 1109 of the connecting plate 1101, thereby releasing the locking state between the snap-fit ​​plate 1107 on the support plate 1102 and the second mounting plate 1204. Finally, remove the heating mechanism 12 upwards from the housing 11 for maintenance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A duct-type electric heater that is easy to install and disassemble, comprising an electric heater body (1), wherein the electric heater body (1) includes a housing (11), and a heating mechanism (12) is provided on the upper part of the housing (11), characterized in that: The heating mechanism (12) includes a junction box (1201) and a plurality of electric heating tubes (1202). The junction box (1201) is connected to a second mounting plate (1204) via a hollow conduit (1203). The bottom of the second mounting plate (1204) is connected to a first mounting plate (1205). The upper end of each electric heating tube (1202) passes through the first mounting plate (1205), the second mounting plate (1204), and the hollow conduit (1203) and is disposed inside the junction box (1201). The electric heating tubes (1202) at the bottom of the first mounting plate (1205) are disposed within the junction box (1201). Inside the housing (11), there are connecting plates (1101) at the four corners of the top of the housing (11), and a support plate (1102) is provided between the tops of the two connecting plates (1101) on the same side. The support plate (1102) has locking grooves (1103) symmetrically opened on both sides. A locking rod (1104) is slidably provided in the locking groove (1103). A connecting plate (1105) is provided at the top of the locking rod (1104). A pull plate (1106) is connected between the tops of the two connecting plates (1105). Multiple locking mechanisms (13) are provided below the pull plate (1106). The locking mechanism (13) includes a bearing column (1301) disposed on a support plate (1102). A displacement groove (1302) is provided in the bearing column (1301). A pressure plate (1303) is slidably connected in the displacement groove (1302). A slide rod (1304) is connected to the top end face of the pressure plate (1303). The slide rod (1304) extends to the outside of the bearing column (1301) and connects to the top end face of the pull plate (1106).

2. The duct-type electric heater that is easy to install and disassemble according to claim 1, characterized in that: The inner wall of the support plate (1102) is provided with a snap-fit ​​plate (1107), and both sides of the second mounting plate (1204) are provided with snap-fit ​​grooves (1206) for the snap-fit ​​plate (1107) to be inserted.

3. The duct-type electric heater that is easy to install and disassemble according to claim 2, characterized in that: The top end face of the connecting plate (1101) is provided with a first locking groove (1108) for the locking rod (1104) to be inserted when the locking plate (1107) is locked in the locking groove (1206), and a second locking groove (1109) for the locking rod (1104) to be inserted when the locking plate (1107) is disengaged from the locking groove (1206).

4. The duct-type electric heater that is easy to install and disassemble according to claim 1, characterized in that: The top end face of the housing (11) is provided with a mounting groove (1110) that fits with the first mounting plate (1205).

5. A duct-type electric heater that is easy to install and disassemble according to claim 1, characterized in that: The support plate (1102) has vertical plates (1111) on both sides located outside the connecting plate (1101). The bottom of the inner wall of the vertical plate (1111) is provided with a guide plate (1112). The outer wall of the connecting plate (1101) is provided with a guide groove (1113) that allows the guide plate (1112) to move.

6. A duct-type electric heater that is easy to install and disassemble according to claim 1, characterized in that: A spring (1305) is coaxially sleeved on the outside of the slide rod (1304) and located in the displacement groove (1302).

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