Terminal sealing structure of electric heating rod

Abstract

The utility model relates to the technical field of electric heating rods, and discloses an electric heating rod terminal sealing structure which comprises an electric heating rod body and a sealing cover arranged at the upper end of the electric heating rod body, the upper end of the electric heating rod body is provided with a wire, one end of the sealing cover is provided with a reinforcing assembly, and one end of the reinforcing assembly is provided with a stainless steel corrugated hose. The reinforcing assembly comprises a circular pipeline and a connecting mechanism fixedly installed in the middle of one side of the upper end of the circular pipeline, a pressing mechanism is fixedly installed at the upper end of the connecting mechanism in a threaded mode, and after a wire enters an inner cavity of the circular pipeline, a rotating rod is rotated clockwise to drive a hollow circular block and a threaded long rod to rotate; the threaded long rod descends in the inner cavity of the threaded cylinder in a threaded mode, then the threaded long rod drives the circular chuck and the arc-shaped pressing block to descend, the arc-shaped pressing block tightly presses the wire in the inner cavity of the circular pipeline to be fixed, and due to the arrangement, when one end of the wire is pulled, the stability of connection between the head end of the wire and the electrical bar cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating rods, in particular to a terminal sealing structure of an electric heating rod. Background Art

[0002] Container explosion-proof electric heating rods are products designed and manufactured for electric heating and insulation of containers such as storage tanks. They have a solid structure and high bending strength. Single-head electric heating tubes, also called single-ended electric heating tubes or spring-tube electric heating tubes, are a type of electric heating tube and are commonly used for mold heating.

[0003] For example, an electric heating rod terminal sealing structure with application number CN202322156948.3 includes an electric heating rod body, a sealing cover, a reinforcing tube, a stainless steel corrugated hose and a wire. On the electric heating rod terminal sealing structure, the sealing cover can seal, cover and reinforce the port on the electric heating rod body through which the wire passes; the reinforcing tube can reinforce the outlet of the wire, which can play a stable limiting role for the wire.

[0004] In the above patent, the wiring of the electric heating rod passes through the sealing cover and then leads out through the reinforcing tube, wherein the wire is movably installed in the inner cavity of the sealing cover and the reinforcing tube. Since one end of the wire is close to the connecting end of the electric heating rod, there is a hidden danger in the stability of the initial connection of the wire.

[0005] Therefore, we propose an electric heating rod terminal sealing structure to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide an electric heating rod terminal sealing structure to solve the problem that the wire is movably installed in the sealing cover and the inner cavity of the reinforcement tube in the above-mentioned background technology, and because one end of the wire is close to the connecting end of the electric heating rod, there is a hidden danger in the stability of the initial end connection of the wire.

[0007] To achieve the above object, the utility model provides the following technical solutions: an electric heating rod terminal sealing structure, comprising an electric heating rod body and a sealing cover arranged at the upper end of the electric heating rod body, a wire is arranged at the upper end of the electric heating rod body, a reinforcing component is arranged at one end of the sealing cover, and a stainless steel corrugated hose is arranged at one end of the reinforcing component;

[0008] The reinforcement component includes a circular pipe and a connecting mechanism fixedly installed in the middle of one side of the upper end of the circular pipe. The upper end of the connecting mechanism is threadedly fixed with a clamping mechanism, which is used to clamp and fix the wire in the inner cavity of the circular pipe.

[0009] Preferably, the sealing cover comprises a semicircular hollow cover and a fitting block fixedly mounted on an upper end of one side of an inner wall of the semicircular hollow cover.

[0010] Preferably, a long rod is fixedly mounted on one end of the fitting block, and an open pull ring is fixedly mounted on one end of the long rod.

[0011] Preferably, the connecting mechanism comprises a threaded cylinder and a sealing gasket embedded around the upper end of the threaded cylinder.

[0012] Preferably, the clamping mechanism includes a hollow round block and a rotating rod fixedly installed in the middle of the upper end of the bottom surface of the inner cavity of the hollow round block.

[0013] Preferably, a threaded long rod is fixedly installed at the middle part of the lower end of the hollow round block, a circular chuck is fixedly installed at the lower end of the threaded long rod, and an arc-shaped pressing block is fixedly installed at the lower end of the circular chuck.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. After the wire enters the inner cavity of the circular pipe, the hollow round block and the long threaded rod are driven to rotate by rotating the rotating rod clockwise, so that the long threaded rod is threaded down in the inner cavity of the threaded cylinder, and then the long threaded rod drives the round chuck and the arc-shaped pressing block to descend, so that the arc-shaped pressing block presses the wire tightly in the inner cavity of the circular pipe and fixes it. This arrangement ensures that when one end of the wire is pulled, it will not affect the stability of the connection between the head end of the wire and the electric heating rod.

[0016] 2. When the operator passes the wire through the inner cavity of the semicircular hollow cover and the circular pipe, the operator can hang the wire in the inner cavity of the open pull ring for support when the wire enters the inner cavity of the circular pipe from the semicircular hollow cover, so as to reduce the angle problem formed by the semicircular hollow cover and the circular pipe, which causes the wire to be bent and damaged for a long time when it is inserted and placed, thereby improving the service life of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the sealing cover of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the reinforcement component of the utility model;

[0020] Figure 4 For the utility model Figure 3 Enlarged view of point A.

[0021] In the figure: 1. Electric heating rod body; 2. Sealing cover; 21. Semicircular hollow cover; 22. Fitting block; 23. Long rod; 24. Open pull ring; 3. Reinforcement component; 31. Round pipe; 32. Connecting mechanism; 321. Threaded cylinder; 322. Sealing pad; 33. Pressing mechanism; 331. Hollow round block; 332. Rotating rod; 333. Threaded long rod; 334. Round chuck; 335. Arc-shaped pressing block; 4. Stainless steel corrugated hose; 5. Wire. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in 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 in 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.

[0023] Example 1: Please refer to Figure 1-4 A terminal sealing structure of an electric heating rod comprises an electric heating rod body 1 and a sealing cover 2 arranged at the upper end of the electric heating rod body 1, a wire 5 is arranged at the upper end of the electric heating rod body 1, a reinforcing component 3 is arranged at one end of the sealing cover 2, and a stainless steel corrugated hose 4 is arranged at one end of the reinforcing component 3. The sealing cover 2 and the reinforcing component 3 are arranged to protect the wire 5 connected to the electric heating rod body 1 and improve the stability of the connection setting of the wire 5.

[0024] The reinforcing assembly 3 includes a circular pipe 31 and a connecting mechanism 32 fixedly installed in the middle of one side of the upper end of the circular pipe 31. A clamping mechanism 33 is threadedly fixedly installed on the upper end of the connecting mechanism 32. The clamping mechanism 33 is used to clamp and fix the wire 5 in the inner cavity of the circular pipe 31.

[0025] The connection mechanism 32 includes a threaded cylinder 321 and a sealing gasket 322 embedded around the upper end of the threaded cylinder 321 . The sealing gasket 322 is used to improve the sealing performance of the connection between the pressing mechanism 33 and the threaded cylinder 321 .

[0026] The connecting mechanism 32 and the clamping mechanism 33 are sealed and connected via threads. When the threaded cylinder 321 and the threaded long rod 333 are threaded clockwise, the hollow round block 331 will be pressed against the upper end of the threaded cylinder 321. By setting the sealing gasket 322, the sealing performance of the connection between the threaded cylinder 321 and the threaded long rod 333 is improved. At the same time, when the clamping mechanism 33 fixes the wire 5, the sealing performance in the inner cavity of the circular pipe 31 is improved.

[0027] The pressing mechanism 33 includes a hollow circular block 331 and a rotating rod 332 fixedly installed in the middle of the upper end of the bottom surface of the inner cavity of the hollow circular block 331, and the rotating rod 332 drives the hollow circular block 331 to rotate.

[0028] A threaded long rod 333 is fixedly installed in the middle of the lower end of the hollow round block 331, a round chuck 334 is fixedly installed at the lower end of the threaded long rod 333, an arc-shaped pressing block 335 is fixedly installed at the lower end of the round chuck 334, the threaded long rod 333 is threadedly connected in the inner cavity of the threaded cylinder 321, and the round chuck 334 is movably set at the lower end of the slot of the threaded long rod 333, and the round chuck 334 is used to improve the stability of the threaded long rod 333 in the inner cavity of the threaded cylinder 321.

[0029] In this embodiment: after the wire 5 enters the inner cavity of the circular pipe 31, the hollow round block 331 and the threaded long rod 333 are driven to rotate by rotating the rotating rod 332 clockwise, so that the threaded long rod 333 is threadedly lowered in the inner cavity of the threaded cylinder 321, and then the threaded long rod 333 drives the round chuck 334 and the arc-shaped pressing block 335 to descend, so that the arc-shaped pressing block 335 presses the wire 5 tightly in the inner cavity of the circular pipe 31 and fixes it. This arrangement ensures that when one end of the wire 5 is pulled, it will not affect the stability of the connection between the head end of the wire 5 and the electric heating rod.

[0030] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 2 The sealing cover 2 includes a semicircular hollow cover 21 and a fitting block 22 fixedly installed on the upper end of one side of the inner wall of the semicircular hollow cover 21. The fitting block 22 is configured to drive a long rod 23 and an open pull ring 24 to be fixedly installed on the upper end of one side of the inner wall of the semicircular hollow cover 21.

[0031] A long rod 23 is fixedly mounted on one end of the fitting block 22 , and an open pull ring 24 is fixedly mounted on one end of the long rod 23 . The open pull ring 24 is suitable for supporting one end of the wire 5 entering into the inner cavity of the circular pipe 31 .

[0032] In this embodiment: when the operator passes the wire 5 out of the inner cavities of the semicircular hollow cover 21 and the circular pipe 31, the wire 5 can be hung in the inner cavity of the open pull ring 24 for support when the wire 5 enters the inner cavity of the circular pipe 31 from the semicircular hollow cover 21, so as to reduce the angle problem formed by the semicircular hollow cover 21 and the circular pipe 31, which causes the wire 5 to be bent and damaged for a long time when it is inserted and placed, thereby improving the service life of the wire 5.

[0033] Working principle: When the operator passes the wire 5 out of the inner cavity of the semicircular hollow cover 21 and the circular pipe 31, the wire 5 can be hung in the inner cavity of the open pull ring 24 for support when the wire 5 enters the inner cavity of the circular pipe 31 from the semicircular hollow cover 21, so as to reduce the angle problem formed by the semicircular hollow cover 21 and the circular pipe 31, which causes the wire 5 to be bent and damaged for a long time when it is inserted and placed. After the wire 5 enters the inner cavity of the circular pipe 31, the rotating rod 332 is rotated clockwise to drive the hollow round block 331 and the threaded long rod 333 to rotate, so that the threaded long rod 33 The thread descends in the inner cavity of the threaded cylinder 321, so that the threaded long rod 333 drives the round chuck 334 and the arc-shaped pressing block 335 to descend, so that the arc-shaped pressing block 335 presses the wire 5 in the inner cavity of the circular pipe 31 and fixes it. The connecting mechanism 32 and the pressing mechanism 33 are sealed and connected through the thread. The hollow round block 331 is pressed on the upper end of the threaded cylinder 321. The sealing gasket 322 is provided to improve the sealing of the connection between the threaded cylinder 321 and the threaded long rod 333. At the same time, when the pressing mechanism 33 fixes the wire 5, the sealing of the inner cavity of the circular pipe 31 is improved.

[0034] It should be noted that the electric heating rod body is equipped with core components that can support the normal operation of the electric heating rod body. The normal operation of the electric heating rod body is not an innovative part of the application document, but also belongs to common knowledge. Those skilled in the art are capable of thinking of the specific structure and structural layout.

[0035] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric heating rod terminal sealing structure, comprising an electric heating rod body (1) and a sealing cover (2) arranged at the upper end of the electric heating rod body (1), wherein a wire (5) is arranged at the upper end of the electric heating rod body (1), characterized in that: A reinforcing component (3) is provided at one end of the sealing cover (2), and a stainless steel corrugated hose (4) is provided at one end of the reinforcing component (3); The reinforcing assembly (3) comprises a circular pipe (31) and a connecting mechanism (32) fixedly mounted at the middle of one side of the upper end of the circular pipe (31); a clamping mechanism (33) is threadedly fixedly mounted at the upper end of the connecting mechanism (32); the clamping mechanism (33) is used to clamp and fix the wire (5) in the inner cavity of the circular pipe (31).

2. The electric heating rod terminal sealing structure according to claim 1, characterized in that: The sealing cover (2) comprises a semicircular hollow cover (21) and a fitting block (22) fixedly mounted on an upper end of one side of the inner wall of the semicircular hollow cover (21).

3. The electric heating rod terminal sealing structure according to claim 2, characterized in that: A long rod (23) is fixedly mounted on one end of the fitting block (22), and an open pull ring (24) is fixedly mounted on one end of the long rod (23).

4. The electric heating rod terminal sealing structure according to claim 1, characterized in that: The connection mechanism (32) comprises a threaded cylinder (321) and a sealing gasket (322) embedded around the upper end of the threaded cylinder (321).

5. The electric heating rod terminal sealing structure according to claim 1, characterized in that: The pressing mechanism (33) comprises a hollow round block (331) and a rotating rod (332) fixedly mounted in the middle of the upper end of the bottom surface of the inner cavity of the hollow round block (331).

6. The electric heating rod terminal sealing structure according to claim 5, characterized in that: A threaded long rod (333) is fixedly mounted in the middle of the lower end of the hollow circular block (331), a circular chuck (334) is fixedly mounted at the lower end of the threaded long rod (333), and an arc-shaped pressing block (335) is fixedly mounted at the lower end of the circular chuck (334).

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