Flexible heating rod

Abstract

The utility model relates to the technical field of air duct heating rods, in particular to a flexible heating rod, which comprises an air duct frame, a fixing ring is fixedly connected to the top of the inner wall of the air duct frame, a flexible heating mechanism convenient for quickly inserting and fixing the heating rod is arranged in the air duct frame, and a heating pipe connecting piece is arranged in the fixing ring in an inserting manner. The annular clamping groove is formed in the side wall of the heating pipe connecting piece, the quick plug connector lug is fixedly connected to the top of the heating pipe connecting piece, the corrugated stainless steel outer pipe is fixedly connected to the bottom of the heating pipe connecting piece, and the stainless steel inner pipe is fixedly connected to the interior of the corrugated stainless steel outer pipe. According to the flexible heating rod, a guide hopper is mounted at the top of a straightening hollow pipe fixedly connected in an inner fixing plate, and a corrugated stainless steel outer pipe, copper powder, a stainless steel inner pipe, magnesium oxide powder and a spiral heating wire are inserted in the straightening hollow pipe and the guide hopper, so that the five structures can be quickly inserted and fixed in an air duct frame at multiple angles.

Description

TECHNICAL FIELD

[0001] The utility model relates to a duct heating rod technical field, concretely is a flexible heating rod. BACKGROUND

[0002] ‌Duct heating rod is a kind of equipment for heating air in duct, it mainly realizes heating function by resistance wire heating.When current passes through resistance wire, resistance wire will generate heat, these heat will be transferred to the air flowing through duct in the form of heat radiation and heat convection, to improve the temperature of air.Duct heating rod element is usually installed in a suitable frame, to ensure its stability and safety.

[0003] The above-mentioned device does not have the structure of the flexible bending installation of the heating rod in the duct frame when in use, which makes the existing heating rod mostly vertical rigid structure when in use, and the entire frame needs to be disassembled from the duct to remove the heating rod for maintenance or replacement when disassembling the heating rod, which is more cumbersome and the narrow space will further increase the operation difficulty, based on the existing technical deficiencies, the utility model designs a flexible heating rod. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a flexible heating rod, which has the advantage of flexible bending installation of the heating rod in the duct frame.

[0005] The utility model provides the following technical scheme: a flexible heating rod, including duct frame, the fixed ring is fixedly connected in the top of the frame inner wall of duct frame, the inside of duct frame is provided with flexible heating mechanism that is convenient for quick plug-in and fixed heating rod,

[0006] Flexible heating mechanism, the flexible heating mechanism includes heating pipe connecting piece, annular clamping groove, quick plug-in wire head, corrugated stainless steel outer tube, copper powder, stainless steel inner tube, magnesium oxide powder, spiral heating wire, straightening hollow pipe and guide hopper, the heating pipe connecting piece is inserted and connected in the inside of fixed ring, the annular clamping groove is set up in the side wall of heating pipe connecting piece, the quick plug-in wire head is fixedly connected in the top of heating pipe connecting piece, the corrugated stainless steel outer tube is fixedly connected in the bottom of heating pipe connecting piece, the stainless steel inner tube is fixedly connected in the inside of corrugated stainless steel outer tube, the copper powder is arranged between corrugated stainless steel outer tube and stainless steel inner tube, the spiral heating wire is arranged in the inside of stainless steel inner tube, the magnesium oxide powder is arranged between stainless steel inner tube and spiral heating wire, the straightening hollow pipe is sleeved and connected and arranged at the outside of corrugated stainless steel outer tube, the guide hopper is fixedly connected in the top end of straightening hollow pipe.

[0007] As a preferred technical scheme of the utility model, the inside of the air duct frame is fixedly connected with an inner fixed plate, a through slot is formed in the top of the air duct frame, a wire box is fixedly arranged below the through slot, and a top cover is arranged on the top of the air duct frame.

[0008] As a preferred technical scheme of the utility model, the inside of the air duct frame is fixedly connected with an inner fixed plate, a through slot is formed in the top of the air duct frame, a wire box is fixedly arranged below the through slot, and a top cover is arranged on the top of the air duct frame.

[0009] As a preferred technical scheme of the utility model, the inside of the air duct frame is fixedly connected with an inner fixed plate, a through slot is formed in the top of the air duct frame, a wire box is fixedly arranged below the through slot, and a top cover is arranged on the top of the air duct frame.

[0010] As a preferred technical scheme of the utility model, the inside of the air duct frame is fixedly connected with an inner fixed plate, a through slot is formed in the top of the air duct frame, a wire box is fixedly arranged below the through slot, and a top cover is arranged on the top of the air duct frame.

[0011] As a preferred technical scheme of the utility model, the inside of the air duct frame is fixedly connected with an inner fixed plate, a through slot is formed in the top of the air duct frame, a wire box is fixedly arranged below the through slot, and a top cover is arranged on the top of the air duct frame.

[0012] As a preferred technical scheme of the utility model, the inside of the air duct frame is fixedly connected with an inner fixed plate, a through slot is formed in the top of the air duct frame, a wire box is fixedly arranged below the through slot, and a top cover is arranged on the top of the air duct frame.

[0013] As a preferred technical scheme of the utility model, the inside of the air duct frame is fixedly connected with an inner fixed plate, a through slot is formed in the top of the air duct frame, a wire box is fixedly arranged below the through slot, and a top cover is arranged on the top of the air duct frame.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The flexible heating rod is bent at a certain angle according to the position of the top hole of the air duct frame and the guide hopper after the air duct frame is installed and fixed in the air duct and the straightening hollow pipe and the guide hopper are also fixed in the air duct frame by the inner fixed plate, the bottom end of the flexible heating rod is inserted into the straightening hollow pipe through the top circular hole of the air duct frame and the fixed ring under the guidance of the guide hopper at this time, the flexible heating rod is slowly inserted into the straightening hollow pipe after the bottom end of the flexible heating rod is positioned, the straightening hollow pipe is of rigid material, the flexible heating rod is quickly straightened after being inserted into the straightening hollow pipe, the heating pipe connecting piece also passes through the top hole of the air duct frame and enters the fixed ring after the flexible heating rod is completely inserted into the straightening hollow pipe, the limiting pin and the clamping bead arranged in the fixed ring are clamped into the annular clamping groove at this time, and the heating pipe connecting piece and the bottom flexible heating rod are fixed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The utility model discloses a whole structure schematic diagram.

[0017] Figure 2 The utility model discloses a wind channel frame elevation structure schematic diagram.

[0018] Figure 3 The utility model discloses a frame internal explosion structure schematic diagram.

[0019] Figure 4 The utility model discloses a flexible heating mechanism explosion structure schematic diagram.

[0020] In the drawing: 1, wind channel frame;101, internal fixed plate;102, through groove;103, wire box;104, top cover;2, fixed ring;201, limit bolt;202, clamping bead;3, flexible heating mechanism;301, heating pipe connecting piece;302, annular clamping groove;303, quick plug connector wire head;304, corrugated stainless steel outer tube;305, copper powder;306, stainless steel inner tube;307, magnesium oxide powder;308, spiral heating wire;309, straightening hollow pipe;310, guide hopper. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 A flexible heating rod, including wind channel frame 1, the fixed ring 2 is connected in the frame inner wall top of wind channel frame 1, the flexible heating mechanism 3 of being convenient for quick plug connector fixed heating rod is arranged in the inside of wind channel frame 1, the internal fixed plate 101 is connected in the inside of wind channel frame 1, the through groove 102 is seted up in the frame top of wind channel frame 1, the wire box 103 is fixedly arranged below the through groove 102, the top of wind channel frame 1 is provided with top cover 104.

[0023] Please refer to Figure 4, the flexible heating mechanism 3 includes a heating pipe connecting piece 301, an annular clamping groove 302, a quick plug-in wire head 303, a corrugated stainless steel outer pipe 304, copper powder 305, a stainless steel inner pipe 306, magnesium oxide powder 307, a spiral heating wire 308, a straightening hollow pipe 309 and a guide hopper 310, the heating pipe connecting piece 301 is plug-in arranged in the inside of the fixed ring 2, the annular clamping groove 302 is opened in the side wall of the heating pipe connecting piece 301, the quick plug-in wire head 303 is fixedly connected to the top of the heating pipe connecting piece 301, the corrugated stainless steel outer pipe 304 is fixedly connected to the bottom of the heating pipe connecting piece 301, the stainless steel inner pipe 306 is fixedly connected to the inside of the corrugated stainless steel outer pipe 304, the copper powder 305 is arranged between the corrugated stainless steel outer pipe 304 and the stainless steel inner pipe 306, the spiral heating wire 308 is arranged in the inside of the stainless steel inner pipe 306, the magnesium oxide powder 307 is arranged between the stainless steel inner pipe 306 and the spiral heating wire 308, the straightening hollow pipe 309 is sleeved and arranged outside the corrugated stainless steel outer pipe 304, the guide hopper 310 is fixedly connected to the top end of the straightening hollow pipe 309, the straightening hollow pipe 309 is fixedly connected to the inner fixed plate 101, the guide hopper 310 is arranged below the fixed ring 2, the corrugated stainless steel outer pipe 304, the copper powder 305, the stainless steel inner pipe 306, the magnesium oxide powder 307 and the spiral heating wire 308 are plug-in arranged in the inside of the straightening hollow pipe 309 and the guide hopper 310, the spiral heating wire 308 is electrically connected to the bottom of the heating pipe connecting piece 301, and the corrugated stainless steel outer pipe 304, the copper powder 305, the stainless steel inner pipe 306, the magnesium oxide powder 307 and the spiral heating wire 308 are combined into a flexible heating rod.

[0024] The heating pipe connecting piece 301, the annular clamping groove 302 and the quick plug-in wire head 303 are arranged to facilitate power supply and fixation of the corrugated stainless steel outer pipe 304, the copper powder 305, the stainless steel inner pipe 306, the magnesium oxide powder 307 and the spiral heating wire 308, and the corrugated stainless steel outer pipe 304, the copper powder 305, the stainless steel inner pipe 306, the magnesium oxide powder 307 and the spiral heating wire 308 are arranged in a powder shape, so as to improve the soft plasticity of the combination of the corrugated stainless steel outer pipe 304, the copper powder 305, the stainless steel inner pipe 306, the magnesium oxide powder 307 and the spiral heating wire 308.

[0025] Please refer to Figure 4 The limit bolt 201 is fixedly connected to the fixed ring 2, the inner end of the limit bolt 201 movably arranged has a clamping bead 202, and the clamping bead 202 is clamped and arranged in the groove of the annular clamping groove 302.

[0026] By setting the fixed ring 2, so that the corrugated stainless steel outer tube 304, copper powder 305, stainless steel inner tube 306, magnesium oxide powder 307 and spiral heating wire 308 inserted into the straight hollow pipe 309, by setting the limit bolt 201 and the card bead 202, and the card bead 202 is clamped into the annular clamping groove 302, so as to fix the heating pipe connector 301 and its bottom result, at the same time, it is convenient to overhaul or disassemble the flexible heating mechanism 3.

[0027] Working principle, when a flexible heating rod is used, the initial state is first fixed inside the air duct frame 1, the wire box 103 is installed below the through slot 102 opened at one end of the top of the air duct frame 1, and the top cover 104 is arranged on the top of the air duct frame 1, so as to fix the air duct frame 1 and facilitate wiring operation, and the limit bolt 201 is arranged in the fixed ring 2 fixedly connected to the inner wall of the air duct frame 1, and the inner end of the limit bolt 201 is provided with a card bead 202, so as to lock the flexible heating mechanism 3, which is convenient for quick disassembly, the guide hopper 310 is installed on the top of the straight hollow pipe 309 fixedly connected in the inner fixed plate 101, and the corrugated stainless steel outer tube 304, copper powder 305, stainless steel inner tube 306, magnesium oxide powder 307 and spiral heating wire 308 are inserted into the straight hollow pipe 309 and the guide hopper 310, so as to make the above five structures can be inserted into the air duct frame 1 at multiple angles.

[0028] When the flexible heating rod needs to be inserted into the air duct frame 1 at multiple angles, first, after the air duct frame 1 is installed and fixed in the air duct, and the straight hollow pipe 309 and the guide hopper 310 are also fixed in the air duct frame 1 by the inner fixed plate 101, the flexible heating rod at the bottom of the heating pipe connector 301 is bent at a certain angle according to the position of the hole on the top of the air duct frame 1 and the guide hopper 310. At this time, the bottom end of the flexible heating rod is inserted into the straight hollow pipe 309 through the guide hopper 310 from the top circular hole of the air duct frame 1 and the fixed ring 2. After the bottom end of the flexible heating rod is inserted and positioned, the flexible heating rod is slowly inserted into the straight hollow pipe 309. Because the straight hollow pipe 309 is made of hard material, after the flexible heating rod is inserted into the straight hollow pipe 309, the straight hollow pipe 309 can assist the flexible heating rod to be straightened quickly. After the flexible heating rod is completely inserted into the straight hollow pipe 309, the heating pipe connector 301 also passes through the hole on the top of the air duct frame 1 and enters the fixed ring 2. At this time, the limit bolt 201 and the card bead 202 arranged in the fixed ring 2 are clamped into the annular clamping groove 302 to fix the heating pipe connector 301 and the bottom flexible heating rod. The device is convenient for the flexible heating rod to be inserted into the air duct frame 1 at multiple angles.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible heating rod, comprising an air duct frame (1), characterized in that: The top of the inner wall of the air duct frame (1) is fixedly connected with a fixing ring (2), and the interior of the air duct frame (1) is provided with a flexible heating mechanism (3) that facilitates quick insertion and fixing of the heating rod. A flexible heating mechanism (3) includes a heating tube connector (301), an annular groove (302), a quick-connect connector (303), a corrugated stainless steel outer tube (304), copper powder (305), a stainless steel inner tube (306), magnesium oxide powder (307), a spiral heating wire (308), a straightening hollow tube (309), and a guide hopper (310). The heating tube connector (301) is inserted into the inside of the fixing ring (2). The annular groove (302) is opened on the side wall of the heating tube connector (301). The quick-connect connector (303) is fixedly connected to the top of the heating tube connector (301). The corrugated stainless steel outer tube... The tube (304) is fixedly connected to the bottom of the heating tube connector (301). The stainless steel inner tube (306) is fixedly connected to the inside of the corrugated stainless steel outer tube (304). The copper powder (305) is disposed between the corrugated stainless steel outer tube (304) and the stainless steel inner tube (306). The spiral heating wire (308) is disposed inside the stainless steel inner tube (306). The magnesium oxide powder (307) is disposed between the stainless steel inner tube (306) and the spiral heating wire (308). The straightening hollow tube (309) is sleeved on the outside of the corrugated stainless steel outer tube (304). The guide bucket (310) is fixedly connected to the top of the straightening hollow tube (309).

2. The flexible heating rod according to claim 1, characterized in that: An inner fixing plate (101) is fixedly connected inside the air duct frame (1). A through groove (102) is opened on the top of the air duct frame (1). A wire box (103) is fixedly installed below the through groove (102). A top cover (104) is provided on the top of the air duct frame (1).

3. A flexible heating rod according to claim 1, characterized in that: A limiting bolt (201) is fixedly connected through the fixed ring (2), and a retaining bead (202) is movably provided at the inner end of the limiting bolt (201).

4. A flexible heating rod according to claim 1, characterized in that: The straightening hollow tube (309) is fixedly connected to the inner fixing plate (101), and the guide bucket (310) is located below the fixing ring (2).

5. A flexible heating rod according to claim 1, characterized in that: The corrugated stainless steel outer tube (304), copper powder (305), stainless steel inner tube (306), magnesium oxide powder (307) and spiral heating wire (308) are inserted into the interior of the straightening hollow tube (309) and the guide bucket (310).

6. A flexible heating rod according to claim 1, characterized in that: The spiral heating wire (308) is electrically connected to the bottom of the heating tube connector (301).

7. A flexible heating rod according to claim 3, characterized in that: The locking bead (202) is engaged in the groove of the annular locking groove (302).

8. A flexible heating rod according to claim 1, characterized in that: The corrugated stainless steel outer tube (304), copper powder (305), stainless steel inner tube (306), magnesium oxide powder (307) and spiral heating wire (308) are combined to form a flexible heating rod.

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