Heating pipe

Abstract

The utility model relates to the field of heating tubes of automobile dryers, and provides a heating tube which comprises a ceramic tube and a resistance wire, the resistance wire is sleeved in the ceramic tube, the resistance wire is fixed in the ceramic tube through dispensing, the resistance wire extends out of the open end of the ceramic tube, and magnesium powder is filled in the other end of the ceramic tube; a wire limiting head is further included; the wire limiting head comprises a connecting cylinder, a first limiting cylinder and a second limiting cylinder, the inner end of the connecting cylinder is installed at the opening end of the ceramic tube, and the first limiting cylinder and the second limiting cylinder are both arranged at the outer end of the connecting cylinder; by arranging the wire limiting head, the first wire and the second wire can be limited, it is guaranteed that the structure is more stable, the whole heating pipe can be effectively prevented from rotating in the transportation process, the first wire and the second wire are prevented from being bent, and the transportation quality of the heating pipe is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of heating tubes of automobile dryers, in particular to a heating tube. Background Art

[0002] Automobile air dryers are generally installed on large buses or trucks. They are an indispensable component, especially for some heavy-duty vehicles. Their function is to dry and filter the compressed air from the car's air pump so that the impurities contained in the gas will not enter the car's brake system through the gas, thereby maintaining the sensitivity and effectiveness of the car's brake system.

[0003] The function of the air dryer is to dry out the moisture in the high-pressure air to prevent the corrosion of the brake parts caused by moisture in the air. There is a heating rod in the drying tank. When the temperature is lower than 5°C, the heating rod works.

[0004] The heating rod has a simple structure and a small size. The resistance wire is fixed by internal glue. Therefore, the resistance wire is easy to rotate during transportation, causing the wire to become tangled, or the heating tube to shake due to the tangling, which is not conducive to the protection of the heating tube. Utility Model Content

[0005] The utility model provides a heating tube, which can limit the first wire and the second wire by setting a wire limiting head, thereby ensuring a more stable structure, effectively preventing the entire heating tube from rotating during transportation, preventing the first wire and the second wire from bending, and ensuring the transportation quality of the heating tube.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A heating tube, comprising: a ceramic tube and a resistance wire, wherein the resistance wire is sleeved in the ceramic tube, the resistance wire is fixed in the ceramic tube by dispensing, a first wire and a second wire are connected to both ends of the resistance wire, the first wire and the second wire extend from an open end of the ceramic tube, and the other end of the ceramic tube is filled with magnesium powder;

[0008] Also included is a wire limiter head;

[0009] The wire limiting head comprises a connecting cylinder, a first limiting cylinder and a second limiting cylinder, the inner end of the connecting cylinder is installed at the open end of the ceramic tube, and the first limiting cylinder and the second limiting cylinder are both arranged at the outer end of the connecting cylinder;

[0010] Two ends of the resistance wire are connected with a first electric wire and a second electric wire, the first electric wire is limited in the first limiting cylinder, and the second electric wire is limited in the second limiting cylinder.

[0011] Furthermore, a first elastic sealing block and a second elastic sealing block are respectively disposed in the first limiting cylinder and the second limiting cylinder, a first mounting hole is disposed on the first elastic sealing block, and a second mounting hole is disposed on the second elastic sealing block;

[0012] The first electric wire passes through the first mounting hole, and the second electric wire passes through the second mounting hole.

[0013] Furthermore, the first elastic sealing block and the second elastic sealing block are respectively provided with a first opening and a second opening;

[0014] The connecting tube is provided with a flange, and the connecting tube is buckled on the ceramic tube through the flange;

[0015] The flange and the first limiting cylinder are both provided with a first notch;

[0016] The flange and the second limiting cylinder are both provided with a second notch;

[0017] The first electric wire is installed in the first elastic sealing block through the first notch and the first opening;

[0018] The second electric wire is installed in the second elastic sealing block through the second notch and the second opening.

[0019] Furthermore, the first elastic sealing block and the second elastic sealing block are respectively sleeved in the first limiting cylinder and the second limiting cylinder through interference connection.

[0020] Furthermore, the outer ends of the first limiting cylinder and the second limiting cylinder are respectively provided with a first limiting ring and a second limiting ring;

[0021] The first limiting ring limits the first elastic sealing block, and the first electric wire passes through the first limiting ring;

[0022] The second limiting ring limits the second elastic sealing block, and the second electric wire passes through the second limiting ring.

[0023] Furthermore, the end of the first electric wire is connected to a first connecting terminal, and the end of the second electric wire is connected to a second connecting terminal.

[0024] The utility model can limit the first wire and the second wire by setting the wire limiting head, thereby ensuring a more stable structure, and can effectively prevent the entire heating tube from rotating during transportation, prevent the first wire and the second wire from bending, and ensure the transportation quality of the heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 This is a schematic diagram of the structure of a heating tube in a specific embodiment of the utility model;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure of a resistance wire of a heating tube is shown;

[0028] Figure 3 for Figure 1 A schematic diagram of the matching relationship between a wire limiting head of a heating tube and a first elastic sealing block and a second elastic sealing block is shown;

[0029] Figure 4 for Figure 3 The structural schematic diagram of the wire limit head shown;

[0030] Figure 5 for Figure 4 A top view of the structure of the wire limiter shown;

[0031] Figure 6 for Figure 3 A structural cross-sectional view of the first elastic sealing block and the second elastic sealing block shown;

[0032] Figure 7 for Figure 6 The overall structural schematic diagram of the first elastic sealing block and the second elastic sealing block shown;

[0033] Figure 8 for Figure 7 The structure shown is a left view;

[0034] Fig. 9 for Figure 7 A top view of the structure shown;

[0035] Explanation of the accompanying drawings: ceramic tube 1; resistance wire 2; first electric wire 21; second electric wire 22; first terminal 23; second terminal 24; electric wire limiting head 3; connecting cylinder 31; first limiting cylinder 32; second limiting cylinder 33; flange 34; first notch 35; second notch 36; first limiting ring 37; second limiting ring 38; first elastic sealing block 4; first mounting hole 41; first opening 42; second elastic sealing block 5; second mounting hole 51; second opening 52. DETAILED DESCRIPTION

[0036] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the specific embodiment of the present invention, see Figure 1-Figure 9 A heating tube comprises: a ceramic tube 1 and a resistance wire 2, wherein the resistance wire 2 is bent and sleeved in the ceramic tube 1, and the two ends of the resistance wire 2 are connected with a first wire 21 and a second wire 22, and the outer end of the ceramic tube 1 is a stepped tube, and the first wire 21 and the second wire 22 extend out of the outer end, and the resistance wire 2 is fixed in the ceramic tube 1 by dispensing glue to prevent the resistance wire 2 from shaking in the ceramic tube 1, and the inner end part of the ceramic tube 1 is filled with magnesium powder;

[0038] Also includes a wire limiter 3;

[0039] The wire limiting head 3 includes a connecting tube 31, a first limiting tube 32 and a second limiting tube 33. The inner end of the connecting tube 31 is installed inside the opening end of the ceramic tube 1, and the first limiting tube 32 and the second limiting tube 33 are both arranged at the outer end of the connecting tube 31.

[0040] The first electric wire 21 is confined in the first limiting cylinder 32 , and the second electric wire 22 is confined in the second limiting cylinder 33 .

[0041] In the specific embodiment of the present utility model, see Figure 1-Figure 9 , the first limiting cylinder 32 and the second limiting cylinder 33 are respectively provided with a first elastic sealing block 4 and a second elastic sealing block 5; the first elastic sealing block 4 and the second elastic sealing block 5 are actually an integrated structure, the main body is located in the connecting cylinder 31, a part of the top extends into the first limiting cylinder 32, and a part extends into the second limiting cylinder 33, the first elastic sealing block 4 is provided with a first mounting hole 41, and the second elastic sealing block is provided with a second mounting hole 51;

[0042] The first wire 21 passes through the first mounting hole 41 , and the second wire 22 passes through the second mounting hole 51 ;

[0043] By providing the first elastic sealing block 4 and the second elastic sealing block 5 , the first electric wire 21 and the second electric wire 22 can be squeezed tightly to prevent the first electric wire 21 and the second electric wire 22 from shaking.

[0044] In the specific embodiment of the present utility model, see Figure 1-Figure 9The first elastic sealing block 4 and the second elastic sealing block 5 are respectively provided with a first opening 42 and a second opening 52, the first opening 42 extends to the first mounting hole 41, and the second opening 52 extends to the second mounting hole 51, and the first wire 21 and the second wire 22 pass through the first opening and the second opening respectively and are limited in the first mounting hole 41 and the second mounting hole 51;

[0045] The connecting tube 31 is provided with a flange 34, and the connecting tube 31 is buckled on the ceramic tube 1 through the flange 34. The flange is glued to the ceramic tube to ensure that the wire limit head does not move, thereby limiting the first wire 21 and the second wire 22;

[0046] The flange 34 and the first limiting tube 32 are both provided with a first notch 35;

[0047] The flange 34 and the second limiting tube 33 are both provided with a second notch 36;

[0048] The first wire 21 is installed in the first elastic sealing block 4 through the first notch 35 and the first opening 42;

[0049] The second electric wire is installed in the second elastic sealing block 5 through the second notch 36 and the second opening 52;

[0050] The first elastic sealing block 4 and the second elastic sealing block 5 can limit the first electric wire 21 and the second electric wire 22 .

[0051] In the specific embodiment of the present utility model, see Figure 1-Figure 9 The first elastic sealing block 4 and the second elastic sealing block 5 are respectively sleeved in the first limiting cylinder 32 and the second limiting cylinder 33 through interference connection, thereby preventing the first elastic sealing block 4 and the second elastic sealing block 5 from shaking and ensuring the stability of the first elastic sealing block 4 and the second elastic sealing block 5.

[0052] In the specific embodiment of the present utility model, see Figure 1-Figure 9 , the outer ends of the first limiting cylinder 32 and the second limiting cylinder 33 are respectively provided with a first limiting ring 37 and a second limiting ring 38. In the accompanying drawings, the first limiting ring 37 is formed by the flange 34 and the first limiting cylinder 32, and the second limiting ring 38 is formed by the flange 34 and the second limiting cylinder 33;

[0053] The first limiting ring 37 limits the first elastic sealing block 4, and the first wire 21 passes through the first limiting ring 37;

[0054] The second limiting ring 38 limits the second elastic sealing block 5 , and the second electric wire 22 passes through the second limiting ring 38 .

[0055] In the specific embodiment of the present utility model, see Figure 1-Figure 9 The end of the first electric wire 21 is connected to a first terminal 23 , and the end of the second electric wire 22 is connected to a second terminal 24 .

[0056] The resistance wire 2, the first wire 21, the second wire 22, the first terminal 23 and the second terminal 24 are finished products. When installing, first bend the resistance wire, insert the resistance wire into the ceramic tube, and make the first wire and the second wire extend out of the ceramic tube, and then fix the resistance wire with glue;

[0057] Then install the wire limit head on the first wire and the second wire. After reasonable adjustment, buckle the wire limit head on the ceramic tube and use glue to fix it. Then fill it with sand and seal it to complete the processing of a heating tube.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating tube, comprising: A ceramic tube and a resistance wire, wherein the resistance wire is sleeved in the ceramic tube and fixed in the ceramic tube by dispensing glue, a first wire and a second wire are connected to both ends of the resistance wire, the first wire and the second wire extend from the open end of the ceramic tube, and the other end of the ceramic tube is filled with magnesium powder; It is characterized by: it also includes a wire limiting head; The wire limiting head comprises a connecting cylinder, a first limiting cylinder and a second limiting cylinder, the inner end of the connecting cylinder is installed at the open end of the ceramic tube, and the first limiting cylinder and the second limiting cylinder are both arranged at the outer end of the connecting cylinder; The first electric wire limiter is located in the first limiting cylinder, and the second electric wire limiter is located in the second limiting cylinder.

2. A heating tube according to claim 1, characterized in that: A first elastic sealing block and a second elastic sealing block are respectively arranged in the first limiting cylinder and the second limiting cylinder, a first mounting hole is arranged on the first elastic sealing block, and a second mounting hole is arranged on the second elastic sealing block; The first electric wire passes through the first mounting hole, and the second electric wire passes through the second mounting hole.

3. A heating tube according to claim 2, characterized in that: The first elastic sealing block and the second elastic sealing block are respectively provided with a first opening and a second opening; The connecting tube is provided with a flange, and the connecting tube is buckled on the ceramic tube through the flange; The flange and the first limiting cylinder are both provided with a first notch; The flange and the second limiting cylinder are both provided with a second notch; The first electric wire is installed in the first elastic sealing block through the first notch and the first opening; The second electric wire is installed in the second elastic sealing block through the second notch and the second opening.

4. A heating tube according to claim 2, characterized in that: The first elastic sealing block and the second elastic sealing block are respectively sleeved in the first limiting cylinder and the second limiting cylinder through interference connection.

5. A heating tube as claimed in claim 3, characterized in that: The outer ends of the first limiting cylinder and the second limiting cylinder are respectively provided with a first limiting ring and a second limiting ring; The first limiting ring limits the first elastic sealing block, and the first electric wire passes through the first limiting ring; The second limiting ring limits the second elastic sealing block, and the second electric wire passes through the second limiting ring.

6. A heating tube according to claim 1, characterized in that: An end of the first electric wire is connected to a first connection terminal, and an end of the second electric wire is connected to a second connection terminal.

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