A dust test box capable of automatically adding materials

Abstract

The utility model relates to the technical field of sand and dust test, and in particular to a sand and dust test box capable of automatic feeding, comprising a box body with an upper cavity and a lower cavity, a material discharge groove connected to the upper cavity being provided in the box body, a driving motor being fixedly provided at the top of the box body, and a stirring piece fixedly connected to the output end of the driving motor being rotatably installed in the upper cavity, and a feeding mechanism for quantitatively conveying sand is provided in the box body through the upper cavity and the lower cavity. The utility model has an upper cavity and a lower cavity provided in the box body, and the weight of the sand on the loading plate is weighed and monitored by a pressure sensor, and at the same time, an automatic telescopic device is controlled to control the loading plate to move up and down, so as to realize quantitative conveying of the sand in the upper cavity to the lower cavity; a pushing plate moving back and forth toward the discharge port is provided in the lower cavity, and the pushing plate is actively pulled by a pressure sensor moving up and down, so as to realize quantitative pushing.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and dust testing, in particular to a sand and dust testing box capable of automatically adding materials. Background Art

[0002] The sand and dust test is mainly used for sand and dust simulation testing of low-voltage electrical appliances, motors, instruments, meters, electronic products, and lamps. It is used to evaluate the resistance of all mechanical, electronic, electrochemical, and electromechanical equipment to dry sand or dusty atmospheres and whether they can be stored and operated.

[0003] Under existing conditions, a dust test box with automatic feeding, such as the one disclosed in announcement number CN209432356U, is used. The material is received through a receiving hopper, and then the screw shaft is driven to rotate by the rotation of the driving motor, thereby feeding the material through the spiral blades. This principle is the same as that of the existing screw conveyor, but it is difficult to quantitatively control the transported sand in the test box, resulting in a different amount of sand transported each time, which makes it difficult to meet the quantitative control requirements in the comparative experiment, and it is impossible to obtain accurate experimental results data. Utility Model Content

[0004] The utility model aims to solve the problem that it is difficult to realize quantitative feeding in the sand and dust test box in the prior art, and proposes a sand and dust test box capable of automatically feeding.

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

[0006] A dust test box capable of automatic feeding comprises a box body with an upper cavity and a lower cavity, the box body is provided with a material discharge groove connected to the upper cavity, and the box body is provided with a material discharge channel connected to the material discharge groove and the lower cavity, a driving motor is fixedly arranged on the top of the box body, and a stirring member fixedly connected to the output end of the driving motor is rotatably installed in the upper cavity, and the box body is provided with a feeding mechanism for quantitatively conveying sand through the upper cavity and the lower cavity.

[0007] Preferably, the upper cavity and the lower cavity are opened in the box body from top to bottom, and the side walls at the upper and lower ends of the box body are respectively provided with a feed port connected to the upper cavity and a discharge port connected to the lower cavity.

[0008] Preferably, the feeding mechanism comprises a lifting support rod which is slidably sleeved in the lower cavity through the material discharge groove, and a material loading plate and a pressure sensor are respectively fixedly mounted on the lifting support rod, a guide groove is provided at the lower end of the material discharge groove, and a welded return spring and a guide block are arranged in the guide groove, a traction link is connected to the guide block and the pressure sensor by a pin shaft, and an automatic telescopic device which is controlled to open and close by the pressure sensor and is pin-connected to the traction link is installed on the pin shaft at the lower end of the material discharge groove;

[0009] The feeding mechanism also includes a pushing component corresponding to the discharge port.

[0010] Preferably, the material loading plate is located at the top end of the lifting support rod and is slidably mounted in the upper cavity and the material discharge groove, and the pressure sensor is installed at the lower end of the lifting support rod in the lower cavity.

[0011] Preferably, the return spring is horizontally welded in the guide groove, and the guide block is slidably mounted in the guide groove.

[0012] Preferably, the pushing assembly includes a limit groove opened in the inner wall of the lower cavity, and a limit block is slidably mounted in the limit groove, a guide rail is integrally provided at the bottom end of the lower cavity, and a push plate is slidably mounted on the guide rail toward the discharge port, a limit connecting rod is pin-connected between the limit block and the push plate, and a traction rod is pin-connected between the limit connecting rod and the pressure sensor.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model has an upper cavity and a lower cavity in the box body, and a material discharge groove and a material discharge channel connecting the upper cavity and the lower cavity are provided in the box body, and a stirring element driven to rotate by a driving motor is provided in the upper cavity.

[0015] 2. The utility model sets a lifting support rod connecting the loading plate and the pressure sensor between the unloading groove and the lower cavity, and monitors the weight of the sand on the loading plate through the pressure sensor, and controls the automatic telescopic device to control the up and down movement of the loading plate, thereby realizing quantitative transportation of the sand in the upper cavity to the lower cavity.

[0016] 3. The utility model provides a push plate in the lower cavity that moves back and forth toward the discharge port, and utilizes a pressure sensor that moves up and down to tug on the push plate so as to achieve quantitative pushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a dust test box capable of automatically adding materials proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a dust test box capable of automatically adding materials proposed by the utility model;

[0019] Figure 3 This is an enlarged schematic diagram of the structure of part A of a dust test box capable of automatically adding materials proposed by the utility model.

[0020] In the figure: 1. Box body; 101. Upper cavity; 102. Lower cavity; 2. Unloading groove; 3. Unloading channel; 4. Driving motor; 5. Stirring element; 6. Lifting support rod; 7. Loading plate; 8. Pressure sensor; 9. Guide groove; 10. Reset spring; 11. Guide block; 12. Traction connecting rod; 13. Automatic telescope; 14. Limiting groove; 15. Limiting block; 16. Guide rail; 17. Pushing plate; 18. Limiting connecting rod; 19. Traction rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 3 A dust test box capable of automatically feeding includes a box body 1 with an upper cavity 101 and a lower cavity 102, a material discharge groove 2 connected to the upper cavity 101 is provided in the box body 1, and a material discharge channel 3 connected to the material discharge groove 2 and the lower cavity 102 is provided in the box body 1. Figure 1 The discharge channel 3 is opened at an angle so that the sand material can automatically enter the lower cavity 102 .

[0023] A driving motor 4 is fixedly installed on the top of the box body 1, and a stirring member 5 fixedly connected to the output end of the driving motor 4 is rotatably installed in the upper cavity 101. Under the driving action of the stirring member 5, an appropriate amount of sand is moved to the loading plate 7, and the pressure sensor 8 is used to monitor the weight of the sand on the loading plate 7.

[0024] The box body 1 is provided with a feeding mechanism for quantitatively conveying sand through the upper cavity 101 and the lower cavity 102. Figure 1 With attached Figure 3 :

[0025] On the one hand, the feeding mechanism includes a lifting support rod 6 which is slidably sleeved in the lower cavity 102 through the unloading groove 2, and a loading plate 7 and a pressure sensor 8 are fixedly installed on the lifting support rod 6 respectively, a guide groove 9 is opened at the lower end of the unloading groove 2, and a welded return spring 10 and a guide block 11 are arranged in the guide groove 9, a traction link 12 is pin-connected between the guide block 11 and the pressure sensor 8, and an automatic telescopic device 13 which is controlled to open and close by the pressure sensor 8 and pin-connected to the traction link 12 is installed on the pin at the lower end of the unloading groove 2. After the pressure sensor 8 determines that there is enough sand on the loading plate 7, it controls the automatic telescopic device 13 to open, so as to pressurize the traction link 12, so that the lifting support rod 6 and the loading plate 7 are lifted and lowered vertically, and then the sand on the loading plate 7 is sent to the unloading channel 3;

[0026] On the other hand, the feeding mechanism also includes a pushing assembly corresponding to the discharge port, and the pushing assembly includes a limit groove 14 opened in the inner wall of the lower cavity 102, and a limit block 15 is slidably mounted in the limit groove 14, and a guide rail 16 is integrally provided at the bottom end of the lower cavity 102, and a pushing plate 17 facing the discharge port is slidably mounted on the guide rail 16, a limit connecting rod 18 is pin-connected between the limit block 15 and the pushing plate 17, and a traction rod 19 is pin-connected between the limit connecting rod 18 and the pressure sensor 8, and the limit connecting rod 18 is driven by the pressure sensor 8 that moves up and down to move up and down, thereby driving the pushing plate 17 to move back and forth horizontally, thereby pushing the sand material in the lower cavity 102 to the discharge port position.

[0027] Based on this, further extension:

[0028] First, the upper cavity 101 and the lower cavity 102 are opened from top to bottom in the box body 1, and the upper and lower side walls of the box body 1 are respectively provided with a feed port connected to the upper cavity 101 and a discharge port connected to the lower cavity 102 to realize the in and out transportation of sand.

[0029] Secondly, the loading plate 7 is located at the top end of the lifting support rod 6 and is slidably mounted in the upper cavity 101 and the unloading groove 2, and the pressure sensor 8 is installed at the lower end of the lifting support rod 6 in the lower cavity 102. The pressure sensor 8 is used to monitor the weight of the sand on the loading plate 7. When the weight of the sand reaches the standard, the loading plate 7 is controlled to move down into the unloading groove 2.

[0030] Finally, the return spring 10 is horizontally welded in the guide groove 9 , and the guide block 11 is slidably mounted in the guide groove 9 .

[0031] It should be noted that the specific models and specifications of the motors and sensors need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be repeated.

[0032] The functional principle of the utility model can be explained through the following operation modes:

[0033] Sand is introduced into the upper cavity 101 through the feed port, and the driving motor 4 drives the stirring member 5 to stir the sand, so that a proper amount of sand is accumulated on the loading plate 7;

[0034] At this time, the weight of the sand on the loading plate 7 is detected by the pressure sensor 8, and the automatic retractor 13 is controlled to open, so that the output end of the automatic retractor 13 applies pressure to the traction link 12 to pull the guide block 11, thereby driving the lifting support rod 6 and the loading plate 7 to move downward until the loading plate 7 is stored in the lower end of the unloading groove 2;

[0035] The sand material on the loading plate 7 enters the lower cavity 102 through the unloading channel 3;

[0036] The pressure sensor 8 pulls the limit link 18 through the traction rod 19, so that the limit block 15 slides up and down in the limit groove 14, thereby realizing the reciprocating motion of the push plate 17 on the guide rail 16, thereby pushing the sand material in the lower cavity 102 to the discharge port position.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dust test box capable of automatically feeding, comprising a box body (1) having an upper cavity (101) and a lower cavity (102), characterized in that: The box body (1) is provided with a material discharge groove (2) connected to the upper cavity (101), and a material discharge passage (3) connected to the material discharge groove (2) and the lower cavity (102) is provided in the box body (1). A driving motor (4) is fixedly arranged at the top of the box body (1), and a stirring member (5) fixedly connected to the output end of the driving motor (4) is rotatably installed in the upper cavity (101). The box body (1) is provided with a feeding mechanism for quantitatively conveying sand material through the upper cavity (101) and the lower cavity (102).

2. The dust test box capable of automatic feeding according to claim 1, characterized in that: The upper cavity (101) and the lower cavity (102) are opened from top to bottom on the box body (1), and the upper and lower side walls of the box body (1) are respectively provided with a feed port connected to the upper cavity (101) and a discharge port connected to the lower cavity (102).

3. The dust test box capable of automatic feeding according to claim 2, characterized in that: The feeding mechanism comprises a lifting support rod (6) which is slidably mounted in the lower cavity (102) through a material discharge groove (2), and a material loading plate (7) and a pressure sensor (8) are fixedly mounted on the lifting support rod (6), respectively; a guide groove (9) is provided at the lower end of the material discharge groove (2), and a welded return spring (10) and a guide block (11) are arranged in the guide groove (9); a traction link (12) is connected to the pressure sensor (8) by a pin shaft between the guide block (11), and an automatic telescopic device (13) which is controlled to open and close by the pressure sensor (8) and is connected to the traction link (12) by a pin shaft is installed on the lower end of the material discharge groove (2); The feeding mechanism also includes a pushing component corresponding to the discharge port.

4. The dust test box capable of automatic feeding according to claim 3, characterized in that: The material loading plate (7) is located at the top end of the lifting support rod (6) and is slidably mounted in the upper cavity (101) and the material discharge groove (2), and the pressure sensor (8) is installed at the lower end of the lifting support rod (6) located in the lower cavity (102).

5. The dust test box capable of automatically feeding materials according to claim 3, characterized in that: The return spring (10) is horizontally welded in the guide groove (9), and the guide block (11) is slidably mounted in the guide groove (9).

6. The dust test box capable of automatically feeding materials according to claim 3, characterized in that: The pusher assembly comprises a limit groove (14) formed in the inner wall of the lower cavity (102), and a limit block (15) is slidably mounted in the limit groove (14); a guide rail (16) is integrally provided at the bottom end of the lower cavity (102), and a pusher plate (17) is slidably mounted on the guide rail (16) facing the discharge port; a limit connecting rod (18) is pin-connected between the limit block (15) and the pusher plate (17), and a traction rod (19) is pin-connected between the limit connecting rod (18) and the pressure sensor (8).

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