Air tightness detection device for heat energy pipe

Abstract

The utility model relates to the technical field of air tightness detection, in particular to a heat energy pipe air tightness detection device, which comprises a base, a connecting seat is fixedly connected above the base, a rotating shaft is rotatably connected between the base and the connecting seat, a sliding rail is fixedly connected on the outer surface of the rotating shaft, and a cover body is fixedly connected on the upper surface of the connecting seat. The upper surface of the cover body is fixedly connected with a vacuum pump, the interior of the cover body is fixedly connected with a negative pressure tank, and a supporting rod is connected between the base and the connecting seat in an embedded mode. The heat energy pipe with the flange is inverted, the tail end of the pipe penetrates through the insertion ring, the heat energy pipe or the heat energy pipe can make contact with the air exhaust head along with jacking of the electric push rod, the device can conduct air tightness testing on the heat energy pipe or the electric heater, and the air tightness testing range of the device is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection technical field, specifically a kind of heat pipe airtightness detection device. BACKGROUND

[0002] Airtightness detection device is used to detect the sealing property of heat pipe, and heat pipe is not a proper noun, but a more general term, which is usually used to describe the pipeline or device related to heat transfer, and can also be the common name of electric heating pipe. Electric heating pipe is a tubular electric heating element composed of spiral resistance wire and crystalline magnesium oxide powder. For electric heating pipe, the airtightness of the flange and the welding position of the heat pipe needs to be detected. The common methods are pressure decay method or vacuum decay method. However, the existing device has certain disadvantages, such as the fire-fighting pipeline airtightness detector disclosed in the announcement No. CN222104967U, which relates to pipeline detection technology. The utility model includes a base, a detector body is fixedly connected to one side of the top end of the base, a detection head is arranged at one end of the detector body, a plugging assembly is arranged on one side of the top end of the base for use with the detection head, a fixing mechanism is arranged on the top end of the base, and the fixing mechanism includes a vertical shell, the bottom end of the vertical shell is fixedly connected to the top end of the base.

[0003] Although the above-mentioned device tests the sealing property by pressure decay method and is convenient for fixing the pipeline, for heat pipe, some heat pipes need to test the airtightness of the flange and the pipeline connection position, and cannot be fixed by clamping both ends, otherwise the pipeline will be damaged, which reduces the application range of the device. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a heat pipe airtightness detection device to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A heat pipe airtightness detection device includes a base, a connecting seat is fixedly connected above the base, a rotating shaft is rotatably connected between the base and the connecting seat, a sliding rail is fixedly connected to the outer surface of the rotating shaft, a cover is fixedly connected to the upper surface of the connecting seat, a vacuum pump is fixedly connected to the upper surface of the cover, a negative pressure tank is fixedly connected inside the cover, a supporting rod is embeddedly connected between the base and the connecting seat, a connecting sleeve is arranged below the connecting seat, and a horizontal rod is threadedly connected to the outer surface of the connecting sleeve.

[0007] The outer surface of the crossbar is slidably connected with an air extraction module, the air extraction module comprises a sliding seat, a connecting head, an air extraction head and a pressure gauge, the sliding seat is slidably connected with the outer surface of the crossbar, the upper surface of the sliding seat is fixedly connected with a metal hose, the lower surface of the sliding seat is fixedly connected with the connecting head, the outer surface of the connecting head is threadedly connected with the air extraction head, and the outer surface of the connecting head is embeddedly connected with the pressure gauge;

[0008] The outer surface of the sliding rail is slidably connected with a fixing module, the fixing module comprises a sliding block and an insertion ring, the sliding block is slidably connected with the outer surface of the sliding rail, and the outer surface of the sliding block is fixedly connected with a limiting frame; and the insertion ring is embeddedly and movably connected with the upper surface of the limiting frame.

[0009] Further, the outer surface of the base is welded with a first connecting lug, the outer surface of the connecting seat is welded with a second connecting lug, the supporting rod is connected with the first connecting lug and the second connecting lug, the outer surface of the supporting rod is threadedly connected with a nut, and the connecting sleeve and the supporting rod are nestedly connected.

[0010] Further, the inner bottom surface of the base is fixedly connected with an electric push rod, and the output end of the electric push rod is in contact with the lower surface of the limiting frame.

[0011] Further, the air extraction module further comprises an air inlet pipe, an electromagnetic valve and a fastening knob, the air inlet pipe is embeddedly and fixedly connected with the outer surface of the metal hose, the electromagnetic valve is nestedly connected with the other end of the air inlet pipe, and the fastening knob is threadedly connected with the upper surface of the sliding seat.

[0012] Further, the negative pressure tank is communicated through the metal hose and the air extraction head, and one end of the fastening knob is in contact with the crossbar.

[0013] Further, the upper surface of the cover body is embeddedly connected with an air extraction pipe, the distal end of the air extraction pipe is fixedly connected with a one-way air outlet valve, the one-way air outlet valve is connected and communicated with the negative pressure tank, and the upper end of the air extraction pipe is connected with the air suction port of the vacuum pump.

[0014] Further, the fixing module further comprises an extrusion frame and a screw rod, the extrusion frame is embeddedly and fixedly connected with the outer surface of the limiting frame, the inner side surface of the extrusion frame is embeddedly and movably connected with an extrusion frame, the screw rod is rotatably connected with the outer surface of the extrusion frame, the extrusion frame and the extrusion frame are threadedly connected, and one end of the screw rod is fixedly connected with a hand wheel.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1, manual rotation cooperation rotating shaft moves fixed module, another group fixed module carries out the fixation of heat energy pipeline or electric heating pipe, this structure makes the device when carrying out air tightness detection, another group fixed module can carry out the fixation, through multiple fixed modules alternate use to improve the efficiency of air tightness detection.

[0017] 2, the heat energy pipeline is placed on the upper surface of the limiting frame, then the hand wheel is manually rotated, the extrusion frame is matched with the limiting frame to fix the heat energy pipeline under the pushing of the screw, when the flange welding position of the heat energy pipeline needs to be detected in gas tightness, the heat energy pipeline with the flange is inverted to make the pipeline end pass through the insertion ring, the heat energy pipeline or the heat energy pipeline can be contacted with the air suction head along with the jacking of the electric push rod, so that the device can detect the heat energy pipeline or the electric heater in gas tightness, and the range of gas tightness detection of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure schematic diagram of the utility model;

[0019] Figure 2 is the air suction module structure schematic diagram of the utility model;

[0020] Figure 3 is the fixed module structure schematic diagram of the utility model;

[0021] Figure 4 is the cover internal structure schematic diagram of the utility model.

[0022] In the drawing: 1, base; 101, first connecting lug; 102, electric push rod; 2, connecting seat; 201, second connecting lug; 202, support rod; 203, nut; 3, connecting sleeve; 301, cross bar; 4, air suction module; 401, sliding seat; 402, metal hose; 403, air inlet pipe; 404, electromagnetic valve; 405, fastening knob; 406, connecting head; 407, air suction head; 408, pressure gauge; 5, cover; 501, vacuum pump; 502, air suction pipe; 503, one-way air outlet valve; 504, negative pressure tank; 6, rotating shaft; 601, sliding rail; 7, fixed module; 701, sliding block; 702, limiting frame; 703, insertion ring; 704, extrusion frame; 705, extrusion frame; 706, screw rod; 707, hand wheel. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings of the embodiments of the utility model, and 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 the ordinary skill in the art without creative labor belong to the range of protection of the utility model.

[0024] Please refer to Figures 1-4The utility model discloses a kind of thermal energy pipe air tightness detection devices, including base 1, the upper surface of base 1 is fixedly connected with connecting seat 2, rotatingly connected between base 1 and connecting seat 2 has shaft 6, the outer surface of shaft 6 is fixedly connected with slide rail 601, the upper surface of connecting seat 2 is fixedly connected with cover 5, the upper surface of cover 5 is fixedly connected with vacuum pump 501, the inside of cover 5 is fixedly connected with negative pressure tank 504, support rod 202 is embedded between base 1 and connecting seat 2 and is connected, the lower portion of connecting seat 2 is provided with connecting sleeve 3, the outer surface of connecting sleeve 3 is threadedly connected with cross bar 301;

[0025] The outer surface of cross bar 301 is nested and slidably connected with suction module 4, and the suction module 4 includes a sliding seat 401, a connecting head 406, a suction head 407 and a pressure gauge 408.

[0026] The outer surface of the slide rail 601 is slidably connected with a fixing module 7, and the fixing module 7 includes a sliding block 701 and an insertion ring 703.

[0027] Specifically, when in use, the support rod 202 is used to connect the base 1 and the connecting seat 2, and the upper surface of the base 1 is provided with a through hole, which can be connected with the threaded assembly and the ground. The shaft 6 is connected with the slide rail 601 and the fixing module 7. The number of fixing modules 7 is multiple. After the heat energy pipe or the electric heating pipe is fixed through the limiting frame 702 or the insertion ring 703, the fixing module 7 is manually rotated and moved with the shaft 6, so that the other fixing module 7 can fix the heat energy pipe or the electric heating pipe. This structure allows the other fixing module 7 to be fixed when the device is used for air tightness detection. The efficiency of air tightness detection is improved by alternating use of multiple fixing modules 7. When detecting, the vacuum pump 501 is used to vacuumize the negative pressure tank 504, so that the negative pressure tank 504 is in a state of negative pressure. At this time, the metal hose 402 cooperates with the suction head 407 to perform suction operation on the heat energy pipe or the electric heating pipe. The value of the pressure gauge 408 is observed to know the air tightness result. The sliding seat 401 can slide on the cross bar 301, and the position of the suction head 407 can be manually adjusted to improve the adaptability of the device to different specifications of heat energy pipes.

[0028] Embodiment one

[0029] As Figures 1-4As shown, the outer surface of the base 1 is welded with a first connecting lug 101, the outer surface of the connecting seat 2 is welded with a second connecting lug 201, the support rod 202 is connected with the first connecting lug 101 and the second connecting lug 201, and the outer surface of the support rod 202 is screwed with a nut 203, and the connecting sleeve 3 is nested with the support rod 202.

[0030] In this embodiment, the nut 203 is used to connect the support rod 202 and the connecting sleeve 3, and at the same time, the fixing of the base 1 and the connecting seat 2 is completed.

[0031] As shown, Figures 1-4 The air suction module 4 further includes an air inlet pipe 403, a solenoid valve 404 and a fastening knob 405, the air inlet pipe 403 is embedded and fixedly connected to the outer surface of the metal hose 402, the solenoid valve 404 is nested at the other end of the air inlet pipe 403, the fastening knob 405 is screwed to the upper surface of the sliding seat 401, and one end of the fastening knob 405 is in contact with the cross rod 301.

[0032] In this embodiment, after the solenoid valve 404 is opened, the metal hose 402 is communicated with the outside through the solenoid valve 404, and the inside of the connecting head 406 is in a normal pressure state, which is convenient for the movement of the fixing module 7 and further facilitates the testing of the next group of fixing modules 7. By manually rotating the fastening knob 405, one end of the fastening knob 405 is in contact with the cross rod 301, and the sliding seat 401 can be fixed.

[0033] As shown, Figures 1-4 The negative pressure tank 504 is communicated through the metal hose 402 and the air suction head 407, the upper surface of the cover body 5 is embedded with the air suction pipe 502, the distal end of the air suction pipe 502 is fixedly connected with the one-way air outlet valve 503, the one-way air outlet valve 503 is connected and communicated with the negative pressure tank 504, and the upper end of the air suction pipe 502 is connected with the air outlet of the vacuum pump 501.

[0034] In this embodiment, when detecting, the negative pressure tank 504 cooperates with the metal hose 402 to suck the air in the air suction head 407, the one-way air outlet valve 503 only supports the air in the negative pressure tank 504 to cooperate with the vacuum pump 501 to discharge to the outside, and the air suction head 407 can be customized according to different specifications of the thermal energy pipe and connected with the connecting head 406 through screwing.

[0035] Embodiment two

[0036] On the basis of embodiment one, in order to make up for the problem that the limiting frame 702 is not convenient for clamping different specifications of the thermal energy pipe in embodiment one.

[0037] As shown, Figures 1-4 The inner bottom surface of the base 1 is fixedly connected with an electric push rod 102, and the output end of the electric push rod 102 is in contact with the lower surface of the limiting frame 702.

[0038] In the embodiment, the electric push rod 102 is started, the electric push rod 102 pushes the limiting frame 702 to move upwards, and the heat energy pipe or the pipeline on the upper surface of the limiting frame 702 is in contact with the suction head 407.

[0039] As shown in Figures 1-4 The fixed module 7 further comprises an extrusion frame 704 and a screw rod 706, the extrusion frame 704 is embedded on the outer surface of the limiting frame 702 and is fixedly connected to the limiting frame 702, the inner surface of the extrusion frame 704 is embedded with an extrusion frame 705 which is movably connected, the screw rod 706 is rotatably connected to the outer surface of the extrusion frame 705, the extrusion frame 705 and the extrusion frame 704 are threadedly connected, and one end of the screw rod 706 is fixedly connected with a hand wheel 707.

[0040] In the embodiment, the heat energy pipeline is placed on the upper surface of the limiting frame 702, and then the hand wheel 707 is manually rotated, under the pushing of the thread, the extrusion frame 705 cooperates with the limiting frame 702 to fix the heat energy pipeline, when the flange welding position of the heat energy pipeline needs to be tested for air tightness, the heat energy pipeline with the flange is inverted and inserted through the insertion ring 703, and with the jacking of the electric push rod 102, the heat energy pipe or the heat energy pipeline can be in contact with the suction head 407, so that the device can test the air tightness of the heat energy pipeline or the electric heater, and the range of air tightness test of the device is improved.

[0041] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0042] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A hot energy pipe air tightness detection device, comprising a base (1), a connecting seat (2) is fixedly connected above the base (1), a rotating shaft (6) is rotatably connected between the base (1) and the connecting seat (2), a sliding rail (601) is fixedly connected to the outer surface of the rotating shaft (6), a cover (5) is fixedly connected to the upper surface of the connecting seat (2), a vacuum pump (501) is fixedly connected to the upper surface of the cover (5), a negative pressure tank (504) is fixedly connected inside the cover (5), a supporting rod (202) is embeddedly connected between the base (1) and the connecting seat (2), a connecting sleeve (3) is arranged below the connecting seat (2), and a cross rod (301) is threadedly connected to the outer surface of the connecting sleeve (3). characterized in that The outer surface of the cross rod (301) is nested and slidingly connected with an air extraction module (4), and the air extraction module (4) comprises: a sliding seat (401) slidingly connected to the outer surface of the cross rod (301), a metal hose (402) fixedly connected to the upper surface of the sliding seat (401), a connecting head (406) fixedly connected to the lower surface of the sliding seat (401), an air extraction head (407) threadedly connected to the outer surface of the connecting head (406), a pressure gauge (408) embeddedly connected to the outer surface of the connecting head (406), the outer surface of the sliding rail (601) is slidingly connected with a fixing module (7), and the fixing module (7) comprises: a sliding block (701) slidingly connected to the outer surface of the sliding rail (601), and a limiting frame (702) fixedly connected to the outer surface of the sliding block (701), and an insertion ring (703) embeddedly movably connected to the upper surface of the limiting frame (702).

2. The apparatus of claim 1, wherein, A first connecting lug (101) is welded to the outer surface of the base (1), a second connecting lug (201) is welded to the outer surface of the connecting seat (2), the supporting rod (202) is connected with the first connecting lug (101) and the second connecting lug (201), a nut (203) is threadedly connected to the outer surface of the supporting rod (202), and the connecting sleeve (3) is nestedly connected with the supporting rod (202).

3. The apparatus of claim 1, wherein, An electric push rod (102) is fixedly connected to the inner bottom surface of the base (1), and the output end of the electric push rod (102) is in contact with the lower surface of the limiting frame (702).

4. The apparatus of claim 1, wherein, The air extraction module (4) further comprises: an air inlet pipe (403) embeddedly and fixedly connected to the outer surface of the metal hose (402), a solenoid valve (404) nestedly connected to the other end of the air inlet pipe (403), and a fastening knob (405) threadedly connected to the upper surface of the sliding seat (401).

5. The apparatus of claim 4, wherein, The negative pressure tank (504) is communicated through the metal hose (402) and the air extraction head (407), one end of the fastening knob (405) is in contact with the cross rod (301).

6. The apparatus of claim 1, wherein, A suction pipe (502) is embeddedly connected to the upper surface of the cover (5), a one-way air outlet valve (503) is fixedly connected to the distal end of the suction pipe (502), the one-way air outlet valve (503) is connected and communicated with the negative pressure tank (504), and the upper end of the suction pipe (502) is connected with the air suction port of the vacuum pump (501).

7. The apparatus of claim 1, wherein, The fixed module (7) further comprises: a pressing frame (704) embeddedly and fixedly connected to the outer surface of the limiting frame (702), an inner surface of the pressing frame (704) being embeddedly and movably connected with a pressing box (705); a screw rod (706) rotatably connected to the outer surface of the pressing box (705), the pressing box (705) and the pressing frame (704) being threadedly connected, and one end of the screw rod (706) being fixedly connected with a hand wheel (707).

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