Air duct type heater with dust removal function

Abstract

The utility model relates to the technical field of air duct type heaters, and discloses an air duct type heater with an ash removal function. Comprising a body assembly; the main body assembly comprises a shell, an electric heating element and a heating element, wherein the shell is provided with the electric heating element; the air inlet is formed in the shell; the air outlet is formed in the shell; the external pipeline is arranged on the air outlet; when the device is connected with an external pipeline, only the fixing ring on the external pipeline needs to be placed on the fixing mechanism to be attached to the connecting ring on the air outlet, meanwhile, the external pipeline is placed on the supporting columns, and two hands are released; after the fixing ring and the connecting ring are attached in place, the fixing ring and the connecting ring are driven by the fixing mechanism to be inserted into the first groove body and the second groove body to be locked and fixed, and after the external pipeline and the air outlet are in butt joint, the external pipeline and the air outlet are supported through the fixing plate, the supporting column and the fixing mechanism; and the problems of shaking, loosening and even separation of the joint of the external pipeline and the air outlet are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct type heaters, in particular to an air duct type heater with dust removal function. Background Art

[0002] An electric heater is a device that can convert electrical energy into thermal energy. It is used to increase the temperature, keep warm, and heat flowing liquid or gaseous media. When the heating medium enters the heating chamber of the sheathed electric heater under pressure, the heat generated by the electric heating element is taken away by the principle of fluid thermodynamics, so that the temperature of the heated medium meets the user's process requirements. It also has a dust removal function for easy dust prevention.

[0003] At present, when the duct heaters on the market are in use, they are mostly connected to the external pipes by bolts and flanges. It is necessary to turn several bolts one by one. The operation steps are not only cumbersome but also difficult to disassemble and assemble. In the related technology, the external pipe is inserted into the inner wall of the duct heater by plugging or squeezing the arc surface of the external pipe by a screw to simplify the fixation. However, there is no support device at the connection between the external pipe and the duct heater. Therefore, the stability of the docking process may not be ensured during use, which may easily cause the pipe to shake, loosen or even detach, and the personnel are required to hold the external pipe with their hands during the docking and fixing process, which leads to certain limitations. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a duct heater with dust removal, which has the advantages of convenient quick connection between the duct heater and the external pipeline and stable support for the joint between the external pipeline and the duct heater, solving the problem of cumbersome connection between the duct heater and the external pipeline and lack of support at the joint.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a duct heater with dust removal, comprising a main body component; the main body component comprises: a shell, on which an electric heating element is arranged; an air inlet, arranged on the shell; an air outlet, arranged on the shell; an external pipe, arranged on the air outlet; an adjustment component is arranged on the external pipe, and the adjustment component comprises: a fixing ring, arranged on the external pipe; a groove body one, opened on the fixing ring; a connecting ring, arranged on the air outlet; a groove body two, opened on the connecting ring; a fixing mechanism, arranged on the connecting ring; a fixing plate, arranged on the shell, and the fixing plate and the fixing mechanism are fixedly connected; a support column, arranged on the fixing plate.

[0008] In some embodiments, the fixing mechanism includes: a connecting frame, which is arranged on the fixing plate, and the connecting frame and the connecting ring are fixedly connected; a screw rod, which is threadedly connected to the connecting frame; a connecting plate, which is rotatably connected to the screw rod; a connecting rod, which is arranged on the connecting plate, and the connecting rod is inserted into the slot body one and the slot body two.

[0009] In some embodiments, the fixing mechanism further includes: a limiting rod slidably connected to the connecting frame, and the limiting rod and the connecting plate are fixedly connected.

[0010] In some embodiments, the fixing mechanism further includes: a guide block, which is disposed on the connecting rod.

[0011] In some embodiments, a positioning assembly is disposed on the connecting frame, and the positioning assembly includes: a positioning rod disposed on the connecting frame; a positioning groove opened on the fixing ring, and the positioning rod is inserted into the positioning groove.

[0012] In some embodiments, a sealing ring is provided on one side of the fixing ring.

[0013] In some embodiments, a reinforcing rib is provided between the fixing plate and the shell, and two ends of the reinforcing rib are fixedly connected to the fixing plate and the shell respectively.

[0014] In some embodiments, a plurality of support columns are disposed on the fixing plate.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a duct heater with dust removal, which has the following beneficial effects:

[0017] When the utility model is connected with the external pipe, it is only necessary to place the fixing ring on the external pipe on the fixing mechanism and fit it with the connecting ring on the air outlet, and at the same time place the external pipe on several supporting columns to release both hands. When the fixing ring and the connecting ring are fit in place, they are respectively inserted into the inside of the groove body one and the groove body two through the movement inside the fixing mechanism to lock and fix the fixing ring and the connecting ring. When the external pipe and the air outlet are connected, the external pipe and the air outlet are supported by the fixing plate, the supporting column and the fixing mechanism, so as to avoid shaking, loosening or even separation at the connection point between the external pipe and the air outlet. The utility model has the advantages of convenient quick connection between the duct heater and the external pipe and stable support for the connection point between the external pipe and the duct heater, which solves the problems of complicated connection between the duct heater and the external pipe and lack of support at the connection point. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the main components of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the adjustment component of the utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the adjustment component of the utility model.

[0021] In the figure:

[0022] 1. Main assembly; 11. Shell; 12. Electric heating element; 13. Air inlet; 14. Air outlet; 15. External pipe;

[0023] 2. Adjustment assembly; 21. Fixing ring; 22. Slot body 1; 23. Connecting ring; 24. Slot body 2; 25. Fixing mechanism; 251. Connecting frame; 252. Screw rod; 253. Connecting plate; 254. Connecting rod; 255. Limiting rod; 256. Guide block; 26. Fixing plate; 27. Support column;

[0024] 3. Positioning assembly; 31. Positioning rod; 32. Positioning slot;

[0025] 4. Sealing ring;

[0026] 5. Strengthen the ribs. DETAILED DESCRIPTION

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

[0028] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] Duct heaters are usually composed of heating tubes, heat exchangers and air ducts. When the heater is powered on, the heating tubes begin to heat up and transfer the heat energy to the heat exchanger. When the air in the heat exchanger flows through the heater, it will be affected by the heat energy emitted by the heater and become warm. The heated air is then transported to the place that needs to be heated through the air duct. In this process, the air will transfer part of the heat to the area that needs to be heated, thereby achieving the heating effect.

[0032] In the related art, the operation of connecting the duct heater with the external pipe is complicated. It is usually simplified by plugging or inserting the external pipe into the inner wall of the duct heater and squeezing the arc surface of the external pipe with a screw to fix it. However, there is no support device at the connection between the external pipe and the duct heater. Therefore, the stability of the docking process may not be ensured during use, which may easily cause the pipe to shake, loosen or even detach. In addition, during the docking and fixing process, personnel are required to hold the external pipe with hands all the time, which leads to certain limitations.

[0033] In order to solve the problems in the related technology to a certain extent, the embodiment of the present application provides a duct heater with dust removal. When it needs to be connected to an external pipe, the fixing ring 21 on the external pipe 15 only needs to be placed on the fixing mechanism 25 to fit the connecting ring 23 on the air outlet 14, and the external pipe 15 needs to be placed on several support columns 27 to release both hands. When the fixing ring 21 and the connecting ring 23 are fit in place, they are inserted into the inside of the groove body 1 22 and the groove body 2 24 respectively through the movement inside the fixing mechanism 25 to lock and fix the fixing ring 21 and the connecting ring 23. When the external pipe 15 and the air outlet 14 are connected, the external pipe 15 and the air outlet 14 are supported by the fixing plate 26, the support column 27 and the fixing mechanism 25 to avoid shaking, loosening or even detachment at the connection point between the external pipe 15 and the air outlet 14.

[0034] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0035] Combination Figure 1-Figure 3The embodiment of the present application provides a duct heater with dust removal, including a main body component 1; the main body component 1 includes: a shell 11, on which an electric heating element 12 is arranged; an air inlet 13, arranged on the shell 11; an air outlet 14, arranged on the shell 11; an external pipe 15, arranged on the air outlet 14; an adjustment component 2 is arranged on the external pipe 15, and the adjustment component 2 includes: a fixing ring 21, arranged on the external pipe 15; a groove body 1 22, opened on the fixing ring 21; a connecting ring 23, arranged on the air outlet 14; a groove body 24, opened on the connecting ring 23; a fixing mechanism 25, arranged on the connecting ring 23; a fixing plate 26, arranged on the shell 11, and the fixing plate 26 and the fixing mechanism 25 are fixedly connected; a support column 27, arranged on the fixing plate 26.

[0036] The duct heater is usually composed of a heating tube, a heat exchanger and an air duct. When the heater is powered on, the heating tube starts to heat up and transfers the heat energy to the heat exchanger. When the air in the heat exchanger flows through the heater, it will be affected by the heat energy emitted by the heater and become warm. The heated air is then transported to the place that needs to be heated through the air duct. In this process, the air will transfer part of the heat to the area that needs to be heated, thereby achieving the heating effect. However, the operation of connecting the duct heater to the external pipeline is cumbersome, so when it needs to be connected to the external pipeline 15, it is only necessary to place the fixing ring 21 on the external pipeline 15. When the fixing mechanism 25 is attached to the connecting ring 23 on the air outlet 14, the external pipe 15 is placed on several supporting columns 27 and both hands are released. When the fixing ring 21 and the connecting ring 23 are attached in place, the fixing mechanism 25 is moved inside to insert the fixing ring 21 and the connecting ring 23 into the inside of the groove body 1 22 and the groove body 2 24 respectively to lock and fix the fixing ring 21 and the connecting ring 23. When the external pipe 15 and the air outlet 14 are connected, the external pipe 15 and the air outlet 14 are supported by the fixing plate 26, the supporting columns 27 and the fixing mechanism 25 to avoid shaking, loosening or even separation at the connection point between the external pipe 15 and the air outlet 14.

[0037] In some embodiments, the fixing mechanism 25 includes: a connecting frame 251, which is arranged on the fixing plate 26, and the connecting frame 251 and the connecting ring 23 are fixedly connected; a screw rod 252, which is threadedly connected to the connecting frame 251; a connecting plate 253, which is rotatably connected to the screw rod 252; a connecting rod 254, which is arranged on the connecting plate 253, and the connecting rod 254 is inserted into the slot body 1 22 and the slot body 2 24.

[0038] During fixation, when the fixing ring 21 and the connecting ring 23 fit in place, the connecting plate 253 is driven to move by rotating the screw rod 252, and the connecting rod 254 is driven to move by the movement of the connecting plate 253. The connecting rod 254 is moved and inserted into the inner walls of the groove body 1 22 and the groove body 24 to lock the fixing ring 21 and the connecting ring 23, thereby completing the connection between the external pipe 15 and the air outlet 14. During disassembly, the connecting rod 254 is driven to disengage from the groove body 1 22 and the groove body 24 to release the fixation by rotating the screw rod 252 in the opposite direction, and finally the external pipe 15 can be removed, thereby facilitating the quick disassembly and assembly of the external pipe 15.

[0039] In some embodiments, the fixing mechanism 25 also includes: a limiting rod 255, which is slidably connected to the connecting frame 251, and the limiting rod 255 and the connecting plate 253 are fixedly connected. When the connecting plate 253 is driven to move by the rotation of the screw rod 252, the limiting rod 255 fixed on the connecting plate 253 slides on the inner wall of the connecting frame 251, thereby preventing the connecting plate 253 from deflecting during the movement.

[0040] In some embodiments, the fixing mechanism 25 also includes: a guide block 256, which is arranged on the connecting rod 254. When the connecting rod 254 is moved and inserted into the slot body 1 22 and the slot body 2 24 for fixing, because the guide block 256 is conical, it is convenient for the connecting rod 254 to be quickly and accurately inserted into the slot body 1 22 and the slot body 2 24.

[0041] In some embodiments, a positioning assembly 3 is disposed on the connecting frame 251 , and the positioning assembly 3 includes: a positioning rod 31 disposed on the connecting frame 251 ; a positioning groove 32 opened on the fixing ring 21 , and the positioning rod 31 is inserted into the positioning groove 32 .

[0042] When the external pipe 15 needs to be connected to the air outlet 14, the two positioning grooves on the fixing ring 21 are aligned with the two positioning rods 31 on the connecting frame 251 and inserted for positioning, thereby avoiding displacement during the connection process and increasing the connection and fixing strength between the external pipe 15 and the air outlet 14.

[0043] In some embodiments, a sealing ring 4 is provided on one side of the fixing ring 21 . When the external pipe 15 and the air outlet 14 are connected, the sealing ring 4 can increase the sealing effect between the external pipe 15 and the air outlet 14 .

[0044] In some embodiments, a reinforcing rib 5 is provided between the fixing plate 26 and the shell 11 , and two ends of the reinforcing rib 5 are respectively fixedly connected to the fixing plate 26 and the shell 11 , thereby increasing the fixing effect between the fixing plate 26 and the shell 11 .

[0045] In some embodiments, a plurality of support columns 27 are disposed on the fixing plate 26. When the external pipe 15 is supported by the support columns 27 and the hands are released, the plurality of support columns 27 facilitate more stable support of the external pipe 15.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0047] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A duct heater with dust removal function, comprising a main body component (1); the main body component (1) comprises: A housing (11) on which an electric heating element (12) is disposed; An air inlet (13) is arranged on the housing (11); An air outlet (14) is arranged on the housing (11); An external pipe (15) is arranged on the air outlet (14); The feature is that: an adjustment component (2) is provided on the external pipe (15), and the adjustment component (2) comprises: A fixing ring (21) is arranged on the external pipe (15); A groove body (22) is formed on the fixing ring (21); A connecting ring (23) is arranged on the air outlet (14); A second groove body (24) is provided on the connecting ring (23); A fixing mechanism (25) is arranged on the connecting ring (23); A fixing plate (26) is disposed on the housing (11), and the fixing plate (26) and the fixing mechanism (25) are fixedly connected; The support column (27) is arranged on the fixing plate (26).

2. The duct heater with dust removal function according to claim 1, characterized in that: The fixing mechanism (25) comprises: A connecting frame (251) is arranged on the fixing plate (26), and the connecting frame (251) and the connecting ring (23) are fixedly connected; A screw rod (252) threadedly connected to the connecting frame (251); A connecting plate (253) rotatably connected to the screw rod (252); A connecting rod (254) is arranged on the connecting plate (253), and the connecting rod (254) is inserted into the first groove body (22) and the second groove body (24).

3. The duct heater with dust removal function according to claim 2, characterized in that: The fixing mechanism (25) further comprises: The limiting rod (255) is slidably connected to the connecting frame (251), and the limiting rod (255) and the connecting plate (253) are fixedly connected.

4. The duct heater with dust removal function according to claim 2, characterized in that: The fixing mechanism (25) further comprises: A guide block (256) is arranged on the connecting rod (254).

5. The duct heater with dust removal function according to claim 2, characterized in that: The connecting frame (251) is provided with a positioning assembly (3), and the positioning assembly (3) comprises: A positioning rod (31) is arranged on the connecting frame (251); A positioning groove (32) is formed on the fixing ring (21), and the positioning rod (31) is inserted into the positioning groove (32).

6. The duct heater with dust removal function according to claim 1, characterized in that: A sealing ring (4) is provided on one side of the fixing ring (21).

7. The duct heater with dust removal function according to claim 1, characterized in that: A reinforcing rib (5) is provided between the fixing plate (26) and the shell (11), and two ends of the reinforcing rib (5) are fixedly connected to the fixing plate (26) and the shell (11) respectively.

8. The duct heater with dust removal function according to claim 1, characterized in that: A plurality of support columns (27) are arranged on the fixing plate (26).

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