Test box externally connected with heating pipe

Abstract

The utility model discloses a test box with an external heating pipe, which comprises a box body, a working chamber arranged in the box body, a heating plate arranged in the working chamber, a heating pipe arranged in the heating plate, an end part of the heating pipe protruding out of the box body, a sleeve arranged outside the heating pipe extending out of the box body, and a free end of the heating pipe connected with a power supply binding post. And a sealing assembly is arranged at the joint of the heating pipe and the power supply binding post and is connected with the sleeve for sealing. According to the utility model, the heating tube and the power supply binding post are led out of the box body, so that the problem that the power supply binding post is arranged in the box body to easily cause discharge in the prior art is solved, and the problem that the insulation tape is not resistant to high and low temperatures but is wound on the wiring part to solve the discharge problem is solved. Meanwhile, the sealing assembly is arranged at the wiring position of the power binding post, so that the problem that sealing is difficult due to the fact that the heating pipe and the power binding post are led out of the box body can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental test chamber technical field, concretely relates to a test chamber of heating pipe external connection. BACKGROUND

[0002] The environmental simulation test chamber can be used for testing the running state of products under different environments, such as low pressure temperature test chamber, which is used for testing the stability of products under low pressure and different temperature changes. The inside of the test chamber is usually heated or cooled by heating pipes and refrigeration pipes built in the working chamber. The heating pipe adopts electric heating mode, so the heating pipe needs to be connected with the power line, but the power line built in the working chamber is prone to discharge under certain conditions during testing, thereby affecting normal testing. The common treatment method is to wrap the wiring part with insulating tape, but the service life of the insulating tape is low under high and low temperature environment, and the insulating tape needs to be replaced frequently, causing inconvenience in equipment use. SUMMARY

[0003] In view of the above problems in the prior art, the utility model aims at providing a test chamber with heating pipe external connection, which solves the problem of low service life of the power line built in the test chamber and frequent replacement of the insulating tape, thereby improving the convenience of use.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A test chamber with heating pipe external connection comprises a box body, a working chamber is arranged in the box body, a heating plate is arranged in the working chamber, a heating pipe is built in the heating plate, the end of the heating pipe protrudes out of the box body, a sleeve is arranged outside the heating pipe protruding out of the box body, a power connection post is connected to the free end of the heating pipe, and a sealing assembly is arranged at the connection between the heating pipe and the power connection post to seal the sleeve.

[0006] The above structure design leads the heating pipe and the power connection post out of the box body, solves the problem of easy discharge of the power line built in the box body in the prior art, and solves the problem of discharge by wrapping the wiring part with insulating tape, but the insulating tape is not resistant to high and low temperature. At the same time, the sealing assembly arranged at the wiring position of the power connection post can ensure that the heating pipe and the power connection post are led out of the box body, which solves the problem of sealing difficulty.

[0007] As a further improvement, the sealing assembly comprises a sealing sleeve and a fixing nut, the sealing sleeve is provided with a mounting hole, the sealing sleeve is sleeved on the heating pipe, the fixing nut is provided with a through hole, the fixing nut is fixedly arranged on the sleeve, and the power connection post is connected with the external power supply through the through hole.

[0008] With the above structure design, the sealing sleeve is arranged at the wiring position for sealing, and the fixing nut is used for fixing, so that the sealing effect is improved by extruding the sealing sleeve, and the sealing sleeve is convenient to disassemble and replace.

[0009] As a further improvement, the two ends of the sealing sleeve are conical structures for easy installation, and the sealing sleeve is made of polytetrafluoroethylene material.

[0010] With the above structure design, the installation of the sealing sleeve is facilitated, and the polytetrafluoroethylene material has high and low temperature resistance and softness, so that the sealing effect is better when the fixing nut is fixed.

[0011] As a further improvement, the sleeve end is provided with external threads, the fixing nut is provided with internal threads corresponding to the external threads, and the fixing nut is connected with the sleeve by threads.

[0012] With the above structure design, the fixing nut is connected by threads, so that it is more convenient to disassemble and has better stability.

[0013] As a further improvement, the sleeve is provided with a sealing groove on the inner side of the external threads, and a sealing ring is arranged in the sealing groove.

[0014] With the above structure design, the wiring position is sealed twice to further improve the sealing effect of the wiring position.

[0015] As a further improvement, the sleeve is made of stainless steel material, and the end is fixed to the rear end of the box by welding.

[0016] As a further improvement, the heating plate in the working chamber is provided with three layers, and the heating pipe in each layer of the heating plate is externally connected to the box.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model discloses that the heating pipe and the power supply terminal post are led to the outside of the box, solves the problem that the power line is easily discharged in the prior art, and solves the problem that the power line is discharged under certain conditions by winding the wiring part with insulating tape in the prior art, but the insulating tape is not resistant to high and low temperature.

[0019] 2. The utility model discloses that the sealing assembly is arranged at the wiring position of the power supply terminal post, so that the problem that the heating pipe and the power supply terminal post are led to the outside of the box and are difficult to seal is solved. DRAWINGS

[0020] Figure 1 The structure of the utility model is shown in the drawing.

[0021] Figure 2 is Figure 1 is an enlarged view of A in the figure;

[0022] Figure 3 is another angle structural schematic view of the utility model;

[0023] Figure 4 is Figure 3 is an enlarged view of B in the figure.

[0024] in the figure:

[0025] Box 1, workroom 1a, hot plate 2, heating tube 3, sleeve 4, outer thread 4a, sealing groove 4b, power terminal 5, sealing assembly 6, sealing sleeve 6a, mounting hole 61a, fixed nut 6b, through hole 61b, inner thread 62b. DETAILED DESCRIPTION

[0026] In order to make the technical content, structural features, purposes and effects of the utility model clear, the following will be described in detail in combination with the embodiments and the accompanying drawings.

[0027] The technical scheme of the utility model will be described clearly and completely in combination with the accompanying drawings. Obviously, the described embodiments are 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 belong to the protection scope of the utility model. In the description of the utility model, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the utility model.

[0028] Please refer to Figures 1 to 4The utility model relates to a kind of test box of heating pipe outer connection, including box 1, working chamber 1a is equipped in box 1, heating plate 2 is equipped in working chamber 1a, working chamber 1a is heated by heating plate 2, and product can also be placed on heating plate 2 and test.The heating plate 2 is built-in heating pipe 3, and heating pipe 3 is disc-shaped structure and is arranged, can improve the uniformity of heating plate 2 heating.The end of the heating pipe 3 protrudes out of the box 1, and the heating pipe 3 outside the box 1 is provided with sleeve 4, and the free end of the heating pipe 3 is connected with power terminal post 5 by electric heating, and the heating pipe 3 and power terminal post 5 connection place is provided with sealing assembly 6 and is sealed with sleeve 4 connection.In the utility model, heating pipe 3 and power terminal post 5 wiring position are arranged outside box 1, and are sealed by sealing assembly 6, to avoid the following conditions:

[0029] 1. power terminal post 5 built-in box 1 content is prone to discharge condition;

[0030] 2. insulating tape winding wiring position avoids discharge condition, but because insulating tape is poor in high and low temperature resistance, needs to be frequently replaced Problem;

[0031] 3. heating pipe 3 and power terminal post 5 are external, and sealing problem.

[0032] Please continue to see Figure 2 And Figure 4 Specifically, the sealing assembly 6 includes a sealing sleeve 6a and a fixing nut 6b, the sealing sleeve 6a is provided with a mounting hole 61a, the sealing sleeve 6a is sleeved on the heating pipe 3, the fixing nut 6b is provided with a through hole 61b, the fixing nut 6b is fixedly arranged on the sleeve 4, and the power terminal post 5 is connected with an external power source through the through hole 61b. In the embodiment, the two ends of the sealing sleeve 6a are tapered structures for easy installation, and the sealing sleeve 6a is made of polytetrafluoroethylene material.

[0033] Further, the sleeve 4 is provided with an external thread 4a at the end, the fixing nut 6b is provided with an internal thread 62b corresponding to the external thread 4a, and the fixing nut 6b is connected with the sleeve 4 by screwing.

[0034] Further, the sleeve 4 is provided with a sealing groove 4b on the inside of the external thread 4a, and a sealing ring (not shown) is arranged in the sealing groove 4b, which can further improve the sealing performance of the connection between the heating pipe 3 and the power terminal post 5.

[0035] In the embodiment, the sleeve 4 is made of stainless steel material, and the end is fixed to the rear end of the box 1 by welding.

[0036] In the example, the heating plate 2 in the working chamber 1a is arranged in three layers, and the heating pipe 3 in each layer of the heating plate 2 is externally connected to the box 1.

[0037] The utility model discloses a working principle:

[0038] The utility model discloses a round hole is set up in the rear end of box 1, and the sleeve pipe 4 is welded and fixed in the position of round hole, the end of heating pipe 3 is led to the sleeve pipe 4 and protrudes out of the sleeve pipe 4, and the end of heating pipe 3 is connected power supply binding post 5, and the sealing sleeve 6a is sleeved in the wiring place of heating pipe 3 and power supply binding post 5, and power supply binding post 5 passes through the mounting hole 61a of sealing sleeve 6a and the through hole 61b of fixed nut 6b, and fixed nut 6b extrudes sealing sleeve 6a and forms internal sealing, and fixed nut 6b is connected on sleeve pipe 4 through screw thread. The power supply binding post 5 is connected with power supply and realizes power supply heating. Therefore, the utility model discloses the wiring place of heating pipe 3 and power supply binding post 5 is led to the outside of box 1 and guarantees its sealing property through sealing assembly 6, and then the discharge problem of built-in power supply binding post 5 is avoided.

[0039] According to the disclosure and teaching of the above description, the skilled in the art of the utility model can also change and modify the above embodiment. Therefore, the utility model is not limited to the specific embodiment disclosed and described above, and some modifications and changes of the utility model should fall into the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the utility model.

Claims

1. A test chamber for heating an external surface of a pipe, characterized by, The utility model provides a heating plate, including box (1), be equipped with workroom (1a) in box (1), be equipped with heating plate (2) in workroom (1a), the heating plate (2) is built -in heating pipe (3), the end of heating pipe (3) protrudes out of the box (1), and the heating pipe (3) outside that protrudes out of box (1) is equipped with sleeve (4), the free end of heating pipe (3) is connected power supply terminal post (5), and heating pipe (3) and power supply terminal post (5) connection place set up sealing assembly (6) with sleeve (4) connection carries out sealing.

2. A test chamber for heating the outside of a pipe as claimed in claim 1, characterized in that The sealing assembly (6) includes a sealing sleeve (6a) and a fixing nut (6b), the sealing sleeve (6a) is provided with a mounting hole (61a), the sealing sleeve (6a) is sleeved on the heating pipe (3), the fixing nut (6b) is provided with a through hole (61b), the fixing nut (6b) is fixedly arranged on the sleeve (4), and the power supply terminal post (5) is connected with the external power supply through the through hole (61b).

3. A test chamber for heating the outside of a pipe as claimed in claim 2, wherein The sealing sleeve (6a) is tapered at both ends for easy installation, and the sealing sleeve (6a) is made of polytetrafluoroethylene material.

4. A test chamber for heating the outside of a pipe as claimed in claim 2, wherein The sleeve (4) is provided with external threads (4a) at the end, the fixing nut (6b) is provided with internal threads (62b) corresponding to the external threads (4a), and the fixing nut (6b) and the sleeve (4) are connected by threads.

5. A test chamber for heating the exterior of a pipe as claimed in claim 4, wherein, The sleeve (4) is provided with a sealing groove (4b) inside the external threads (4a), and the sealing groove (4b) is provided with a sealing ring.

6. A test chamber for heating the outside of a pipe as defined in claim 1, wherein The sleeve (4) is made of stainless steel material, and the end is fixed to the rear end of the box (1) by welding.

7. A test chamber for heating the outside of a pipe as defined in claim 1, wherein The heating plate (2) in the workroom (1a) is provided with three layers, and the heating pipe (3) in each layer of the heating plate (2) is externally connected to the box (1).

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