Hot gas heating and pressurizing system for pulse test box

Abstract

The utility model relates to the related technical field of pulse tests, and discloses a hot air heating and pressurizing system for a pulse test box, which comprises the pulse test box, an air adding cylinder is fixedly connected on the side wall of the pulse test box, a heating box is fixedly connected on the air outlet end of the air adding cylinder, and an air inlet is arranged on the pulse test box. The air inlet is connected with the heating box through a connecting pipe, a heating wire is fixedly connected into the heating box, a one-way sealing assembly is arranged between the air adding cylinder and the heating box, the air inlet is formed in the side wall of the air adding cylinder, and a conical air valve is installed in the air inlet. The temperature in the test box can be accurately adjusted by controlling the heating time of the heating wire, the air pressure in the test box can be adjusted by injecting high-pressure gas into the test box through the arrangement of the air cylinder, gas leakage is avoided through the arrangement of the one-way sealing assembly, and the device is simple in overall structure, convenient to operate and low in cost. Control is accurate, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to pulse testing, in particular to a hot air heating and pressurizing system for a pulse testing box. Background Art

[0002] The impulse test chamber is an essential testing equipment for the metal, plastic, rubber, electronic and other material industries. It is used to test the material structure or composite material to see how well it can withstand different environments, and to detect chemical changes or physical damage to the sample caused by environmental influences in the shortest possible time.

[0003] In the prior art, temperature and air pressure are often controlled by ventilation, and air with a qualified temperature is introduced into the box for replacement. The existing method of preparing air with a qualified temperature is to let the air flow through a heating tower. The temperature of the water in the heating tower is controlled and the water is circulated and sprayed, and it is fully in contact and exchanged with the air flowing through to produce air with a qualified temperature. The disadvantage of this method is that the equipment needs to be equipped with a heating tower, the specific heat of water is large, the system inertia is large and the reaction is slow, the energy consumption is high, the temperature balance time is long, and the control accuracy is low. Utility Model Content

[0004] The utility model aims to provide a hot air heating and pressurizing system for a pulse test chamber to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hot air heating and pressurizing system for a pulse test box comprises a pulse test box, a gas filling cylinder is fixedly connected to the side wall of the pulse test box, a heating box is fixedly connected to the air outlet end of the gas filling cylinder, an air inlet is arranged on the pulse test box, the air inlet and the heating box are connected by a connecting pipe, a heating wire is fixedly connected in the heating box, a one-way sealing assembly is arranged between the gas filling cylinder and the heating box, an air inlet is arranged in the side wall of the gas filling cylinder, a conical valve is installed in the air inlet, a filter is fixedly connected to the end of the gas filling cylinder away from the gas filling cylinder, a piston is slidably connected in the gas filling cylinder, one end of a connecting rod is fixedly connected to the piston, and the other end of the connecting rod passes through the gas filling cylinder and is connected to a crank slider assembly.

[0007] As a further solution of the utility model: a take-in and put-out port is provided in the pulse test box, a sealing cover is installed in the take-in and put-out port, mounting seats are fixedly connected on both sides of the take-in and put-out port, mounting frames are fixedly connected on both sides of the sealing cover, mounting bolts are slidably connected between the mounting frame and the mounting seat, and nuts are threadedly connected on the mounting bolts.

[0008] As a further solution of the utility model: a take-in and put-out port is provided in the pulse test box, a sealing cover is installed in the take-in and put-out port, mounting seats are fixedly connected on both sides of the take-in and put-out port, mounting frames are fixedly connected on both sides of the sealing cover, mounting bolts are slidably connected between the mounting frame and the mounting seat, and nuts are threadedly connected on the mounting bolts.

[0009] As a further solution of the utility model: the crank slider assembly includes a second fixed frame fixedly connected to the base, the second fixed frame is fixedly connected to a motor, one end of the crank is fixedly connected to the output shaft of the motor, the other end of the crank is rotatably connected to one end of a rocker arm, and the other end of the rocker is rotatably connected to a connecting rod.

[0010] As a further solution of the utility model: the one-way sealing assembly includes a sealing valve fixedly connected to the air outlet of the gas filling cylinder, a first fixed frame fixedly connected to the gas filling cylinder is arranged on the side of the sealing valve away from the gas filling cylinder, a telescopic rod is slidably connected to the first fixed frame, a sealing block is fixedly connected to one end of the telescopic rod, the sealing block and the sealing valve cooperate with each other, and a spring mounted on the telescopic rod is arranged between the sealing block and the first fixed frame.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model can accurately adjust the temperature in the test box by controlling the heating time of the heating wire, and can also adjust the air pressure in the test box by injecting high-pressure gas into the test box through the setting of the gas cylinder, and can avoid gas leakage through the setting of the one-way sealing component. The overall structure of the device is simple, the operation is convenient, the control is precise, and the practicability of the equipment is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the structure of a hot air heating and pressurizing system for a pulse test chamber.

[0013] Figure 2 The utility model is a perspective view of a hot air heating and pressurizing system for a pulse test chamber.

[0014] Figure 3 The utility model is a cross-sectional view of a hot air heating and pressurizing system for a pulse test chamber.

[0015] Figure 4 It is a cross-sectional view of a hot air heating and pressurizing system for a pulse test chamber in the utility model.

[0016] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0017] In the figure: 1-pulse test box, 2-removal port, 3-sealing cover, 4-mounting seat, 5-mounting frame, 6-mounting bolts, 7-nuts, 8-pressure gauge, 9-gas cylinder, 10-heating box, 11-connecting pipe, 12-sealing valve, 13-first fixing frame, 14-telescopic rod, 15-sealing block, 16-spring, 17-piston, 18-connecting rod, 19-second fixing frame, 20-motor, 21-crank, 22-rocker arm, 23-intake port, 24-filter, 25-conical valve. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1 to Figure 5 In an embodiment of the utility model, a hot air heating and pressurizing system for a pulse test box includes a pulse test box 1, a gas cylinder 9 is fixedly connected to the side wall of the pulse test box 1, a heating box 10 is fixedly connected to the gas outlet end of the gas cylinder 9, an air inlet 23 is provided on the pulse test box 1, the air inlet 23 and the heating box 10 are connected by a connecting pipe 11, a heating wire is fixedly connected in the heating box 10, a one-way sealing component is provided between the gas cylinder 9 and the heating box 10, an air inlet 23 is provided in the side wall of the gas cylinder 9, a conical valve 25 is installed in the air inlet 23, a filter screen 24 is fixedly connected to the end of the gas inlet 23 away from the gas cylinder 9, a piston 17 is slidably connected in the gas cylinder 9, one end of a connecting rod 18 is fixedly connected to the piston 17, and the other end of the connecting rod 18 passes through the gas cylinder 9 and is connected to a crank slider assembly. The utility model is connected to the crank slider assembly through the crank slider assembly The connecting rod 18 is driven to reciprocate and extend, and the connecting rod 18 drives the piston 17 to reciprocate in the gas filling cylinder 9. When the piston 17 moves to the side away from the heating box 10, the air pressure in the gas filling cylinder 9 decreases. At this time, the one-way sealing component is closed, and the conical valve 25 opens under the action of the air pressure difference, so that the external air is sucked in along the air inlet 23 through the conical valve 25, and the gas is filtered through the filter 24 in the process. Then, when the piston 17 moves to the side close to the heating box 10, the air pressure in the gas filling cylinder 9 increases. At this time, the one-way sealing component opens under the push of the air pressure difference, and the conical valve 25 remains closed under the action of the high-pressure gas. At this time, the gas flows into the heating box 10 along the gas filling cylinder 9, and then the gas is heated by the heating wire. The heated gas is discharged into the pulse test box 1 along the connecting pipe 11, thereby realizing the heating and pressurization of the pulse test box 1.

[0020] In one case of this embodiment, see Figure 1 to Figure 5 The pulse test box 1 is provided with a take-in and put-out port 2, a sealing cover 3 is installed in the take-in and put-out port 2, mounting seats 4 are fixedly connected on both sides of the take-in and put-out port 2, mounting frames 5 are fixedly connected on both sides of the sealing cover 3, mounting bolts 6 are slidably connected between the mounting frame 5 and the mounting seat 4, and nuts 7 are threadedly connected on the mounting bolts 6. The utility model facilitates the taking and putting of test products in the pulse test box 1 through the provision of the take-in and put-out port 2, and at the same time, the take-in and put-out port 2 is sealed through the sealing cover 3, and at the same time, the mounting seat 4 and the mounting frame 5 are installed and fixed through the threaded connection of the mounting bolts 6 and the nuts 7, and then the sealing cover 3 is installed and fixed to the take-in and put-out port 2.

[0021] In one case of this embodiment, see Figure 1 to Figure 5 The pulse test box 1 is fixedly connected with a pressure gauge 8 . The utility model detects the gas pressure in the pulse test box 1 by setting the pressure gauge 8 .

[0022] In one case of this embodiment, see Figure 1 to Figure 5 The crank slider assembly includes a second fixed frame 19 fixedly connected to the base, and a motor 20 is fixedly connected to the second fixed frame 19. One end of a crank 21 is fixedly connected to the output shaft of the motor 20. The other end of the crank 21 is rotatably connected to one end of a rocker arm 22. The other end of the rocker is rotatably connected to the connecting rod 18. The crank slider assembly drives the crank 21 to rotate through the motor 20, and the crank 21 drives the rocker to rock back and forth, and the rocker drives the connecting rod 18 to reciprocate and extend.

[0023] In one case of this embodiment, see Figure 1 to Figure 5The one-way sealing assembly includes a sealing valve 12 fixedly connected to the air outlet of the gas filling cylinder 9, a first fixing frame 13 fixedly connected to the gas filling cylinder 9 is arranged on the side of the sealing valve 12 away from the gas filling cylinder 9, a telescopic rod 14 is slidably connected to the first fixing frame 13, a sealing block 15 is fixedly connected to one end of the telescopic rod 14, the sealing block 15 cooperates with the sealing valve 12, a spring 16 sleeved on the telescopic rod 14 is arranged between the sealing block 15 and the first fixing frame 13, the one-way sealing assembly slides and fixes the sealing block 15 through the sliding connection between the telescopic rod 14 and the first fixing frame 13, and then The sealing block 15 is elastically pushed by the setting of the spring 16, so that the sealing block 15 elastically fits on the sealing valve 12. Thereafter, when the gas pressure in the filling cylinder 9 increases, an air pressure difference is generated between the heating box 10 and the filling cylinder 9. The air pressure difference acts on the sealing block 15, so that the sealing block 15 moves away from the sealing valve 12, thereby opening the sealing valve 12. At this time, the gas in the filling cylinder 9 flows into the heating box 10 along the sealing valve 12. When the gas pressure in the filling cylinder 9 decreases, the air pressure difference presses the sealing block 15 against the sealing valve 12, thereby sealing the sealing valve 12.

[0024] The working principle of the utility model is as follows: the utility model drives the crank 21 to rotate by the motor 20, the crank 21 drives the crank to reciprocate, the crank drives the connecting rod 18 to reciprocate, and the connecting rod 18 drives the piston 17 to reciprocate in the gas cylinder 9. When the piston 17 moves to the side away from the heating box 10, the air pressure in the gas cylinder 9 decreases, and the one-way sealing component is closed at this time. The conical valve 25 opens under the action of the air pressure difference, so that the external air is introduced along the air inlet 23 through the conical valve 25. Inhale, and in this process the gas is filtered through the filter screen 24, and then when the piston 17 moves to the side close to the heating box 10, the air pressure in the gas filling cylinder 9 increases, and at this time the one-way sealing component opens under the push of the air pressure difference, and the conical valve 25 remains closed under the action of the high-pressure gas, and at this time the gas flows into the heating box 10 along the gas filling cylinder 9, and then is heated by the heating wire, and the heated gas is discharged into the pulse test box 1 along the connecting pipe 11, thereby realizing the heating and pressurization of the pulse test box 1.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0026] 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 hot air heating and pressurizing system for a pulse test chamber, comprising a pulse test chamber, characterized in that: An air filling cylinder is fixedly connected to the side wall of the pulse test box, and a heating box is fixedly connected to the air outlet end of the air filling cylinder. An air inlet is arranged on the pulse test box, and the air inlet and the heating box are connected by a connecting pipe. A heating wire is fixedly connected in the heating box, and a one-way sealing assembly is arranged between the air filling cylinder and the heating box. An air inlet is arranged in the side wall of the air filling cylinder, and a conical valve is installed in the air inlet. A filter is fixedly connected to the end of the air inlet away from the air filling cylinder, and a piston is slidably connected in the air filling cylinder, one end of a connecting rod is fixedly connected to the piston, and the other end of the connecting rod passes through the air filling cylinder and is connected to a crank slider assembly.

2. A hot air heating and pressurizing system for a pulse test chamber according to claim 1, characterized in that: The pulse test box is provided with a take-in and put-out port, a sealing cover is installed in the take-in and put-out port, mounting seats are fixedly connected on both sides of the take-in and put-out port, mounting frames are fixedly connected on both sides of the sealing cover, mounting bolts are slidably connected between the mounting frame and the mounting seat, and nuts are threadedly connected on the mounting bolts.

3. The hot air heating and pressurizing system for a pulse test chamber according to claim 1, characterized in that: The pulse test box is fixedly connected with a pressure gauge.

4. The hot air heating and pressurizing system for a pulse test chamber according to claim 1, characterized in that: The crank slider assembly includes a second fixed frame fixedly connected to the base, the second fixed frame is fixedly connected to a motor, one end of a crank is fixedly connected to the output shaft of the motor, the other end of the crank is rotatably connected to one end of a rocker arm, and the other end of the rocker arm is rotatably connected to a connecting rod.

5. The hot air heating and pressurizing system for a pulse test chamber according to claim 1, characterized in that: The one-way sealing assembly includes a sealing valve fixedly connected to the air outlet of the gas filling cylinder, a first fixing frame fixedly connected to the gas filling cylinder is arranged on the side of the sealing valve away from the gas filling cylinder, a telescopic rod is slidably connected to the first fixing frame, a sealing block is fixedly connected to one end of the telescopic rod, the sealing block and the sealing valve cooperate with each other, and a spring sleeved on the telescopic rod is arranged between the sealing block and the first fixing frame.

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