Efficient resistance-type heating tube

Abstract

The utility model discloses an efficient resistance type heating tube, which relates to the technical field of resistance heating tubes and comprises a butt joint seat, a connecting seat connected with an electric boiler is fixed at the bottom end of the butt joint seat, an electric heating tube for heating water is connected at the bottom end of the connecting seat, and a limiting mechanism is arranged on the butt joint seat. The limiting mechanism comprises a reset unit and a limiting unit; the limiting unit is used for providing limiting for connection of the connecting base and the electric boiler. The reset unit is used for providing elastic force in one direction for the limiting unit all the time. By arranging the limiting mechanism, in the process that the connecting base and the electric boiler are installed and connected, the limiting block can be in butt joint with the limiting groove in the butt joint groove of the electric boiler, the understanding force of the butt joint base and the electric boiler is further improved, when the hexagonal sleeve is used for being in butt joint with the butt joint base, limiting of the limiting block and the electric boiler is relieved synchronously, and the electric boiler is prevented from being damaged. Working steps are not added, and the connection force is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to resistance heating tube technical field, specifically a kind of high-efficiency resistance heating tube. BACKGROUND

[0002] Resistance heating is the process of heating object based on Joule effect when current flows through object with resistance, resistance heating tube generates heat by resistance wire and conducts heat to the outside, which can be used for heating liquid.

[0003] In the prior art, resistance heating tube is generally installed in electric boiler, and when resistance heating tube needs to be replaced due to damage, sleeve matched with the hexagonal outer wall of resistance heating tube is generally used for twisting, so that resistance heating tube is connected with the slot thread of electric boiler, to prevent resistance heating tube from loosening. In order to further improve the connection force of high-efficiency resistance heating tube, the utility model provides a kind of high-efficiency resistance heating tube. SUMMARY

[0004] The utility model discloses a kind of high-efficiency resistance heating tubes to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-efficiency resistance heating tube, including butt joint seat, the bottom of the butt joint seat is fixed with the connecting seat connected with electric boiler, the bottom of the connecting seat is connected with the electric heating tube for heating water, limiting mechanism is set on butt joint seat;

[0006] The limiting mechanism includes reset unit, limiting unit;

[0007] The limiting unit is used to limit the connection between the connecting seat and the electric boiler.

[0008] The reset unit is used to provide a directional elastic force for the limiting unit.

[0009] As a further scheme of the utility model: the limiting unit includes abutment, connecting block, limiting block and guide slot.

[0010] The abutment is axially slidably installed at the top end of the butt joint seat, and the abutment is used to drive the connecting block to move synchronously.

[0011] The connecting block is fixed at the bottom end of the abutment and extends into the interior of the butt joint seat, and the connecting block is used to drive the limiting block to move synchronously.

[0012] The limiting block is fixed at the bottom end of the connecting block and located at the bottom of the butt joint seat, and the limiting block is used to limit the connection between the butt joint seat and the electric boiler.

[0013] The guide groove is arranged on the inner wall of the butt joint base, and is used for providing space for axial movement of the connecting block.

[0014] As a further scheme of the utility model: the reset unit comprises a positioning rod and a spring.

[0015] The positioning rod is fixed on the inner wall of the butt joint base and penetrates the connecting block, and is used for providing guidance for movement of the connecting block.

[0016] The two ends of the spring are clamped on the inner wall of the butt joint base and the outer wall of the connecting block respectively, and the spring is used for providing reset elastic force for the moving connecting block.

[0017] As a further scheme of the utility model: the bottom end outer wall of the abutting block is in an inclined state.

[0018] As a further scheme of the utility model: the outer wall of the connecting base is butt jointed with the threaded groove of the electric boiler, and the inner cavity of the threaded groove is formed with a limiting groove for the limiting block to enter.

[0019] As a further scheme of the utility model: the number of the abutting blocks and the limiting blocks is two, and the two abutting blocks and the two limiting blocks are symmetrically distributed on the outer wall of the butt joint base.

[0020] As a further scheme of the utility model: the outer wall of the butt joint base is in a hexagonal structure as a whole.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] By arranging the limiting mechanism, the limiting block can be butt jointed with the limiting groove on the butt joint groove of the electric boiler during installation and connection of the connecting base and the electric boiler, the understanding between the connecting base and the electric boiler is further improved, and the limiting block and the electric boiler are simultaneously released when the hexagonal sleeve is butt jointed with the butt joint base, without increasing the working steps, and the connecting force is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a structural schematic view of the utility model;

[0024] Fig. 2 It is a structural schematic view of the limiting mechanism of the utility model.

[0025] Fig. 3 It is a structural schematic view of the limiting mechanism of the utility model.

[0026] In the drawing: 1, butt joint base; 2, connecting base; 3, electric heating pipe; 4, limiting mechanism; 401, abutting block; 402, connecting block; 403, limiting block; 404, guide groove; 405, positioning rod; 406, spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0028] Please refer to Figs. 1-3 In the embodiments of the utility model, an efficient resistance type heating pipe comprises a butt joint seat 1, the butt joint seat 1 is fixed with a connecting seat 2 connected with an electric boiler at the bottom end, the connecting seat 2 is connected with an electric heating pipe 3 for heating water at the bottom end, and the electric heating pipe 3 is characterized in that a limiting mechanism 4 is arranged on the butt joint seat 1.

[0029] The limiting mechanism 4 comprises a reset unit and a limiting unit.

[0030] The limiting unit is used for providing limiting for the connection of the connecting seat 2 and the electric boiler.

[0031] The reset unit is used for always providing elastic force in one direction for the limiting unit.

[0032] The limiting unit comprises a resisting block 401, a connecting block 402, a limiting block 403 and a guide groove 404.

[0033] The resisting block 401 is axially slidably installed at the top end of the butt joint seat 1, and the resisting block 401 is used for synchronously driving the connecting block 402 to move.

[0034] The connecting block 402 is fixed at the bottom end of the resisting block 401 and extends to the inside of the butt joint seat 1, and the connecting block 402 is used for synchronously driving the limiting block 403 to move.

[0035] The limiting block 403 is fixed at the bottom end of the connecting block 402 and located at the bottom of the butt joint seat 1, and the limiting block 403 is used for providing limiting for the connection of the butt joint seat 1 and the electric boiler.

[0036] The guide groove 404 is formed in the inner wall of the butt joint seat 1, and the guide groove 404 is used for providing space for the axial movement of the connecting block 402.

[0037] The reset unit comprises a positioning rod 405 and a spring 406.

[0038] The positioning rod 405 is fixed in the inner wall of the butt joint seat 1 and penetrates through the connecting block 402, and the positioning rod 405 is used for providing guidance for the movement of the connecting block 402.

[0039] The spring 406 is clamped at the inner wall of the butt joint seat 1 and the outer wall of the connecting block 402 at two ends respectively, and the spring 406 is used for providing reset elastic force for the moving connecting block 402.

[0040] The outer wall of the docking seat 1 is hexagonal in structure as a whole.

[0041] In the embodiment: through the structure, the hollow sleeve with a hexagonal shape can be docked with the outer wall of the docking seat 1. During the docking process, the sleeve with a hexagonal shape is in contact with the top inclined surface of the abutting block 401 on the outer side of the docking seat 1, and the abutting block 401 is given a pressing pushing force, the abutting block 401 is driven to move the connecting block 402 along the outer wall of the positioning rod 405, and the spring 406 is given a pressing force, the moving connecting block 402 synchronously drives the limiting block 403 to move, so that the limiting block 403 moves out of the internal limiting groove of the electric boiler. At this time, the hexagonal sleeve is given a rotating force, so that the hexagonal sleeve drives the docking seat 1 and the connecting seat 2 to rotate, and the connecting seat 2 moves out of the electric boiler, and the taking out and replacement operation of the docking seat 1, the connecting seat 2 and the electric heating tube 3 is completed. After losing the limiting from the hexagonal sleeve, the abutting block 401 and the limiting block 403 will return to the original position under the action of the spring 406, and wait for the next docking with the electric boiler.

[0042] Please refer to Figs. 1-3 , the bottom end of the abutting block 401 is inclined, the outer wall of the connecting seat 2 is docked with the threaded groove of the electric boiler, the inner cavity of the threaded groove is formed with a limiting groove for the limiting block 403 to enter, the number of the abutting block 401 and the limiting block 403 is two, and the two abutting blocks 401 and the limiting blocks 403 are symmetrically distributed on the outer wall of the docking seat 1.

[0043] In the embodiment: through the structure, the hollow sleeve with a hexagonal shape can be docked with the outer wall of the docking seat 1. During the docking process, the sleeve with a hexagonal shape is in contact with the top inclined surface of the abutting block 401 on the outer side of the docking seat 1, and the abutting block 401 is given a pressing pushing force, the abutting block 401 is driven to move the connecting block 402 along the outer wall of the positioning rod 405, and the spring 406 is given a pressing force, the moving connecting block 402 synchronously drives the limiting block 403 to move, so that the limiting block 403 moves out of the internal limiting groove of the electric boiler. At this time, the hexagonal sleeve is given a rotating force, so that the hexagonal sleeve drives the docking seat 1 and the connecting seat 2 to rotate, and the connecting seat 2 moves out of the electric boiler, and the taking out and replacement operation of the docking seat 1, the connecting seat 2 and the electric heating tube 3 is completed. After losing the limiting from the hexagonal sleeve, the abutting block 401 and the limiting block 403 will return to the original position under the action of the spring 406, and wait for the next docking with the electric boiler.

[0044] The above only describes the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A high-efficiency electric resistance heating tube, comprising a butt joint seat (1), a connecting seat (2) connected with an electric boiler is fixed at the bottom end of the butt joint seat (1), an electric heating tube (3) for heating water is connected at the bottom end of the connecting seat (2), characterized in that, The limiting mechanism (4) is arranged on the docking seat (1); The limiting mechanism (4) comprises a reset unit and a limiting unit; The limiting unit is used for providing limiting for the connection of the connecting seat (2) and the electric boiler; The reset unit is used for providing elastic force in one direction for the limiting unit; The limiting unit comprises a resisting block (401), a connecting block (402), a limiting block (403) and a guide groove (404); The resisting block (401) is axially slidably arranged at the top end of the docking seat (1), and the resisting block (401) is used for synchronously driving the connecting block (402) to move; The connecting block (402) is fixed at the bottom end of the resisting block (401) and extends into the docking seat (1), and the connecting block (402) is used for synchronously driving the limiting block (403) to move; The limiting block (403) is fixed at the bottom end of the connecting block (402) and located at the bottom of the docking seat (1), and the limiting block (403) is used for providing limiting for the connection of the docking seat (1) and the electric boiler; The guide groove (404) is arranged on the inner wall of the docking seat (1), and the guide groove (404) is used for providing space for the axial movement of the connecting block (402); The reset unit comprises a positioning rod (405) and a spring (406); The positioning rod (405) is fixed on the inner wall of the docking seat (1) and penetrates through the connecting block (402), and the positioning rod (405) is used for guiding the movement of the connecting block (402); The spring (406) is clamped at the inner wall of the docking seat (1) and the outer wall of the connecting block (402), and the spring (406) is used for providing reset elastic force for the moving connecting block (402).

2. The high efficiency electrically resistive heat generating tube of claim 1 wherein, The bottom end of the resisting block (401) is inclined.

3. The high efficiency electrically resistive heat generating tube of claim 1 wherein, The outer wall of the connecting seat (2) is connected with the threaded groove of the electric boiler, and the inner cavity of the threaded groove is formed with a limiting groove for the limiting block (403) to enter.

4. The high efficiency electrically resistive heat generating tube of claim 1 wherein, The number of the resisting block (401) and the limiting block (403) is two, and the two resisting blocks (401) and limiting blocks (403) are symmetrically distributed on the outer wall of the docking seat (1).

5. The high efficiency electrically resistive heat generating tube of claim 1 wherein, The outer wall of the docking seat (1) is in a hexagonal structure.

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