Sand dust test chamber tuyere adjusting device

Abstract

The utility model discloses a sand dust test chamber tuyere adjusting device which comprises a sand dust test chamber body and a vertical plate fixed in the sand dust test chamber body, a placing net is fixed between one side of the vertical plate and the inner wall of the sand dust test chamber body, and a recycling hopper located below the placing net is arranged in the sand dust test chamber body. A circulation assembly is further arranged in the sand dust test box body and comprises an air blower fixed in the sand dust test box body, an air inlet pipe enabling an air inlet of the air blower and the bottom of the recycling hopper to be fixed and communicated and an air outlet pipe with one end penetrating through the vertical plate and being fixed, and the air inlet end of the air outlet pipe is fixed and communicated with an air outlet of the air blower. The circulation assembly further comprises a hose fixed and communicated with the air outlet end of the air outlet pipe, and an adjusting mechanism used for adjusting the direction of an air outlet of the hose is arranged in the sand dust test box body. The angle of the air outlet of the hose can be adjusted, so that the influence of different wind and sand erosion angles on the wear resistance of a product can be detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand dust test technical field especially relates to a sand dust test box air port adjusting device. BACKGROUND

[0002] Sand dust test is also called sand dust test, it is a kind of test method simulating extreme natural environment condition, is used to assess the adaptability and performance of product or material in sand dust environment, and this test is essential for some application fields, such as car, building, electronic product etc., to ensure the reliability and stability of product under various environmental conditions.

[0003] In the Chinese utility model patent with the publication number CN205228772U, a kind of test detection device is disclosed, especially a sand dust test box, mainly including sand dust circulation system, control system and box, sand dust circulation system is mainly composed of sand blasting device, sand dust recovery device and air blower, sand blasting device shell is cylindrical cavity, rotating test rack is installed in cavity, sand dust recovery device shell is inverted cone, is connected in the lower of sand blasting device, sand dust recovery device bottom is connected with pipeline, another end of pipeline is communicated to the top of sand blasting device, air blower is connected on pipeline near sand dust recovery device, sand dust is transferred to sand blasting device by air blower, sand dust discharge controller is installed on pipeline near sand blasting device to control the sand blasting amount of sand blasting device.

[0004] Although the above-mentioned test detection device can detect the sealing performance of the product through sand dust test, the inventor believes that the following defects still exist: for the product commonly used in the area with more wind sand, not only the sealing performance needs to be detected, but also the wear resistance needs to be detected, the erosion of wind sand can cause great wear on the surface of the product, and the different angles of wind sand invasion can affect the accuracy of the detection result, the above-mentioned device is difficult to adjust the angle of air outlet, and it is difficult to simulate the erosion of wind sand with different angles on the product, therefore, the related technology needs to be improved and designed. UTILITY MODEL CONTENTS

[0005] In order to solve the above-mentioned problems, the utility model provides a sand dust test box air port adjusting device.

[0006] The technical purposes are achieved by the following technical scheme: a sand dust test box air port adjusting device, which comprises a sand dust test box body and a vertical plate fixed in the sand dust test box body, a placing net is fixed between the vertical plate side and the sand dust test box body inner wall, a recycling hopper located below the placing net is arranged in the sand dust test box body, a circulating assembly for conveying the sand material recycled by the recycling hopper to above the placing net is further arranged in the sand dust test box body, the circulating assembly comprises a blower fan fixed in the sand dust test box body, an air inlet pipe for fixing and communicating the air inlet of the blower fan and the bottom of the recycling hopper, and an air outlet pipe with one end penetrating through the vertical plate and being fixed, the air inlet end of the air outlet pipe is fixed and communicated with the air outlet of the blower fan, the circulating assembly further comprises a hose fixed and communicated with the air outlet end of the air outlet pipe, and an adjusting mechanism for adjusting the orientation of the air outlet of the hose is arranged in the sand dust test box body.

[0007] By adopting the above technical scheme, the orientation of the air outlet of the hose can be adjusted by the adjusting mechanism, so as to simulate the wind sand erosion angle at different angles, which is beneficial to improve the accuracy of the product wear resistance detection result.

[0008] Further, the adjusting mechanism comprises a mounting assembly, the mounting assembly comprises a mounting ring unit sleeved on the hose and matched with the hose, a mounting rod unit fixed with the top wall in the sand dust test box body, and a ball fixed with the lower end of the mounting rod unit and ball-jointed with the mounting ring unit; the adjusting mechanism further comprises a connecting assembly connected with the bottom of the mounting ring unit, and a driving assembly for controlling the mounting ring unit to rotate around the ball through the connecting assembly.

[0009] By adopting the above technical scheme, the driving assembly controls the mounting ring unit to rotate around the ball through the connecting assembly, so that the orientation of the air outlet of the hose is adjusted, so as to simulate the erosion of the product by the wind sand at different angles.

[0010] Further, the connecting assembly comprises a movable rod penetratingly arranged on the top of the sand dust test box body and slidingly matched, a movable plate fixed with the upper end of the movable rod, an upper spring sleeved on the movable rod and fixed between the bottom of the movable plate and the top of the sand dust test box body, a rotating shaft penetratingly arranged on the side wall of the movable rod close to the lower end of the movable rod, a connecting rod hinged with the end of the rotating shaft, and a T-shaped rod body fixed with the bottom of the mounting ring unit, the connecting rod is provided with two and symmetrically distributed on both sides of the mounting ring unit, one end of the connecting rod away from the rotating shaft is hinged with the end of the T-shaped rod body, and the driving assembly abuts against the top of the movable plate and controls the movable plate to ascend and descend.

[0011] Further, the sand and dust test box body top is fixed with a shell covering the outside of the movable plate, the drive assembly includes a motor fixed on the inner wall of the shell and a cam fixed with the output end of the motor, and the bottom of the cam abuts against the top of the movable plate.

[0012] By adopting the above technical scheme, the motor drives the cam to rotate after working, and due to the eccentric arrangement of the axis of the cam and the axis of the motor output shaft and the limitation of the shape of the cam, the movable plate and the movable rod are lifted under the elastic force of the upper spring, the movable rod pulls the mounting ring unit through the connecting rod and the T-shaped rod body, and due to the spherical joint between the mounting ring unit and the lower end of the mounting rod unit, the mounting ring unit drives the hose to swing around the spherical center of the sphere within a certain range, so as to adjust the angle of the air outlet of the hose, so as to simulate the erosion of wind and sand at different erosion angles to the product, and improve the accuracy of the detection of the wear resistance of the product.

[0013] Further, the mounting rod unit includes a sleeve fixed on the inner top wall of the sand and dust test box body, a sliding plate in sliding fit with the inner wall of the sleeve, a lower spring fixed between the inner top wall of the sand and dust test box body and the top of the sliding plate, and a vertical rod fixed with the bottom of the sliding plate, and the lower end of the vertical rod is fixed with the top of the sphere.

[0014] By adopting the above technical scheme, during the rotation of the mounting ring unit around the spherical center of the sphere when the motor is working, the lower spring enables the sliding plate and the vertical rod to adaptively change within a certain range, which is beneficial to ensure the angle adjustment of the hose.

[0015] Further, the mounting ring unit includes a first circular ring sleeved on the hose and a second circular ring sleeved on the hose, the first circular ring and the second circular ring abut against each other, recesses matched with the sphere are arranged at the intersection between the top of the first circular ring and the side of the first circular ring close to the second circular ring and at the intersection between the top of the second circular ring and the side of the second circular ring close to the first circular ring, the upper end of the vertical section of the T-shaped rod body is fixed with the bottom of the first circular ring or the bottom of the second circular ring, a bolt in gap fit with the second circular ring is arranged through the second circular ring, and the end of the bolt is threadedly connected with the side of the first circular ring close to the second circular ring.

[0016] By adopting the above technical scheme, the bolt detachably connects the second circular ring with the first circular ring, which is convenient for the staff to assemble the mounting ring unit.

[0017] Further, the bolt is a round head inner hexagonal countersunk head bolt, and a containing hole for containing the head of the bolt is arranged on the side wall of the side of the second circular ring away from the first circular ring.

[0018] By adopting the above technical scheme, the flatness and the aesthetic appearance of the surface of the second circular ring are enhanced.

[0019] Further, the cross section of the movable rod is rectangular.

[0020] By adopting the technical scheme, the rotation of the movable rod is limited, so that the movable rod can only vertically lift, and the hose can only adjust the angle in a plane around the sphere, so as to blow to the product in the forward direction or the lateral direction.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. In the application, the staff can adjust the direction of the air outlet of the hose by using the adjusting mechanism, so as to simulate different angle of wind and sand erosion, which is helpful to improve the accuracy of the detection result of the wear resistance of the product.

[0023] 2. In the application, the driving assembly controls the mounting ring unit to rotate around the sphere through the connecting assembly, so that the direction of the air outlet of the hose is adjusted, so as to simulate the erosion of the product by wind and sand at different angles. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall structure schematic view of the embodiment of the utility model;

[0025] Figure 2 is the structure schematic view of the embodiment of the utility model for highlighting the adjusting mechanism;

[0026] Figure 3 is Figure 2 the enlarged schematic view of A in the figure;

[0027] Figure 4 is the schematic view of the embodiment of the utility model for highlighting the connecting structure between the mounting rod unit and the mounting ring unit.

[0028] In the figure: 1, sand and dust test box body; 11, shell; 2, vertical plate; 3, placing net; 4, recycling hopper; 5, circulating assembly; 51, air blower; 52, air inlet pipe; 53, air outlet pipe; 54, hose; 541, limiting ring; 6, adjusting mechanism; 61, mounting assembly; 611, mounting ring unit; 6111, sleeve; 6112, sliding plate; 6113, lower spring; 6114, vertical rod; 612, mounting rod unit; 6121, first circular ring; 6122, second circular ring; 613, sphere; 62, connecting assembly; 621, movable rod; 622, movable plate; 623, upper spring; 624, rotating shaft; 625, connecting rod; 626, T-shaped rod body; 63, driving assembly; 631, motor; 632, cam; 7, groove; 8, bolt; 9, containing hole. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described; obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative effort based on the embodiments of the present application shall fall within the scope of the present application.

[0030] As shown in Figures 1-4 The sand dust test box air port adjusting device disclosed by the embodiments of the present application comprises a sand dust test box body 1 and a vertical plate 2 fixed in the sand dust test box body 1, a placing net 3 (the placing net 3 is a net body structure with mesh holes, used for placing products to be tested) is fixed between one side of the vertical plate 2 and the inner wall of the sand dust test box body 1, a recycling hopper 4 (in order to accelerate the recycling of sand in the test, a vibration motor 631 can be fixed on the recycling hopper 4, which is not shown in the figure) is arranged below the placing net 3 in the sand dust test box body 1, a circulating assembly 5 for conveying the sand recycled by the recycling hopper 4 to above the placing net 3 is further arranged in the sand dust test box body 1, the circulating assembly 5 comprises a blower fan 51 fixed in the sand dust test box body 1, an air inlet pipe 52 fixedly and communicatively connecting the air inlet of the blower fan 51 and the bottom of the recycling hopper 4, and an air outlet pipe 53 (the air outlet pipe 53 is made of hard material, the end of the air outlet pipe 53 away from the blower fan 51 is flush with the surface of the vertical plate 2 near the side of the recycling hopper 4, and the connection between the air outlet pipe 53 and the vertical plate 2 is sealed) penetrating through the vertical plate 2 and fixed, the air inlet end of the air outlet pipe 53 is fixedly and communicatively connected with the air outlet of the blower fan 51, and the circulating assembly 5 further comprises a hose 54 fixedly and communicatively connected with the air outlet end of the air outlet pipe 53, and an adjusting mechanism 6 for adjusting the orientation of the air outlet of the hose 54 is arranged in the sand dust test box body 1.

[0031] Under the action of the blower fan 51, the sand for sand dust test circulates in the sand dust test box body 1, the sand blows and hits the surface of the product under the action of wind, simulates the situation when the product is subjected to wind sand, and completes the detection of the sealing performance and the wind sand resistance of the product. The orientation of the air outlet of the hose 54 can be adjusted by the adjusting mechanism 6, so as to simulate the erosion angle of wind sand at different angles (in the test, the worker needs to place the product in the projection area directly below the hose 54, so that the hose 54 can blow directly or laterally to the product after angle adjustment), which is beneficial to improve the accuracy of the detection result of the wear resistance of the product.

[0032] The adjusting mechanism 6 comprises a mounting assembly 61, which comprises a mounting ring unit 611 sleeved on the hose 54 and matched with the hose 54, a mounting rod unit 612 fixed to the inner top wall of the sand and dust test box body 1, and a ball 613 fixed to the lower end of the mounting rod unit 612 and ball-jointed with the mounting ring unit 611; the adjusting mechanism 6 further comprises a connecting assembly 62 connected to the bottom of the mounting ring unit 611, and a driving assembly 63 controlling the rotation of the mounting ring unit 611 around the ball 613 through the connecting assembly 62. The driving assembly 63 controls the rotation of the mounting ring unit 611 around the ball 613 through the connecting assembly 62, so that the orientation of the air outlet of the hose 54 is adjusted, so as to simulate the erosion of products by wind sand at different angles.

[0033] The connecting assembly 62 comprises a movable rod 621 penetratingly arranged on the top of the sand and dust test box body 1 and slidably matched, a movable plate 622 fixed to the upper end of the movable rod 621, an upper spring 623 sleeved on the movable rod 621 and fixed between the bottom of the movable plate 622 and the top of the sand and dust test box body 1, a rotating shaft 624 penetratingly arranged on the side wall of the movable rod 621 near the lower end of the movable rod 621, a connecting rod 625 hinged to the end of the rotating shaft 624, and a T-shaped rod body 626 fixed to the bottom of the mounting ring unit 611, the connecting rod 625 is provided with two and symmetrically distributed on both sides of the mounting ring unit 611, one end of the connecting rod 625 away from the rotating shaft 624 is hinged to the end of the T-shaped rod body 626, and the driving assembly 63 is abutted against the top of the movable plate 622 and controls the lifting of the movable plate 622. The top of the sand and dust test box body 1 is fixed with a shell 11 covering the outer side of the movable plate 622, and the driving assembly 63 comprises a motor 631 fixed to the inner wall of the shell 11 and a cam 632 fixed to the output end of the motor 631, the bottom of the cam 632 is abutted against the top of the movable plate 622.

[0034] Specifically, the motor 631 drives the cam 632 to rotate after working, due to the eccentric arrangement of the axis of the cam 632 and the axis of the output shaft of the motor 631 and the limitation of the shape of the cam 632, the movable plate 622 and the movable rod 621 are lifted under the elastic force of the upper spring 623, the movable rod 621 pulls the mounting ring unit 611 through the connecting rod 625 and the T-shaped rod body 626, and the mounting ring unit 611 is ball-jointed with the lower end of the mounting rod unit 612, so that the mounting ring unit 611 drives the hose 54 to swing around the ball center of the ball 613 by a certain amplitude, thereby realizing the adjustment of the angle of the air outlet of the hose 54, so as to simulate the erosion of products by wind sand at different angles (the present application focuses on solving the problem that the existing air outlet angle is not convenient to adjust and is difficult to simulate the product being directly or laterally blown, and the specific erosion angle of the product by the wind sand is not within the improvement range of the present application and does not need to be introduced accordingly), which is conducive to improving the accuracy of the detection of the wear resistance of the product.

[0035] The mounting rod unit 612 comprises a sleeve 6111 fixed to the inner top wall of the sand and dust test box body 1, a sliding plate 6112 in sliding fit with the inner wall of the sleeve 6111, a lower spring 6113 fixed between the inner top wall of the sand and dust test box body 1 and the top of the sliding plate 6112, and a vertical rod 6114 fixed to the bottom of the sliding plate 6112, with the lower end of the vertical rod 6114 fixed to the top of the ball 613.

[0036] During the operation of the motor 631 and the rotation of the mounting ring unit 611 around the ball center of the ball 613, the lower spring 6113 allows the sliding plate 6112 and the vertical rod 6114 to make adaptive changes within a certain range, which is conducive to ensuring the angle adjustment of the hose 54.

[0037] The mounting ring unit 611 comprises a first circular ring 6121 sleeved on the hose 54 and a second circular ring 6122 sleeved on the hose 54, the first circular ring 6121 abuts against the second circular ring 6122, recesses 7 for cooperating with the ball 613 are arranged at the intersection of the top of the first circular ring 6121 and the side of the first circular ring 6121 close to the second circular ring 6122 and at the intersection of the top of the second circular ring 6122 and the side of the second circular ring 6122 close to the first circular ring 6121, the upper end of the vertical section of the T-shaped rod body 626 is fixed to the bottom of the first circular ring 6121 or the bottom of the second circular ring 6122, a bolt 8 in gap fit with the second circular ring 6122 is arranged through the second circular ring 6122, and the end of the bolt 8 is threadedly connected to the side of the first circular ring 6121 close to the second circular ring 6122. The bolt 8 detachably connects the second circular ring 6122 and the first circular ring 6121, which facilitates the assembly of the mounting ring unit 611 by the staff.

[0038] In this embodiment, the bolt 8 is a round head socket head bolt, and a receiving hole 9 for accommodating the head of the bolt 8 is arranged on the side wall of the second circular ring 6122 away from the first circular ring 6121. The cross section of the movable rod 621 is rectangular, which limits the rotation of the movable rod 621, so that the movable rod 621 can only vertically ascend and descend, and the hose 54 can only be angle-adjusted in a plane around the ball 613, achieving the purpose of blowing towards the product in the forward direction or the lateral direction (the product is placed in the area of the normal projection of the hose 54 when initially placed).

[0039] To avoid the disengagement of the mounting ring unit 611 from the end of the hose 54 during the adjustment of the hose 54, a limiting ring 541 is fixed to the end of the hose 54 away from the vertical plate 2, and the outer diameter of the limiting ring 541 is greater than the inner diameter of the mounting ring unit 611.

[0040] The use principle of the air outlet adjusting device of the sand and dust test box in the embodiment is as follows: under the action of the air blower 51, the sand for the sand and dust test circulates in the sand and dust test box body 1, the sand blows and hits the product surface under the action of the air force, the scene when the product is subjected to the wind and sand is simulated, and the detection of the sealing performance and the wind and sand resistance of the product is completed. The workers can adjust the air outlet direction of the hose 54 by using the adjusting mechanism 6, so that the wind and sand erosion angles at different angles are simulated, and the accuracy of the detection result of the wear resistance of the product is improved.

[0041] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the idea of the present application belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application can also be considered as the protection scope of the present application.

Claims

1. A sand dust test box air port adjusting device, comprising a sand dust test box body (1) and a vertical plate (2) fixed in the sand dust test box body (1), a placing net (3) is fixed between one side of the vertical plate (2) and the inner wall of the sand dust test box body (1), a recycling hopper (4) is arranged below the placing net (3) in the sand dust test box body (1), and a circulating assembly (5) for conveying the sand material recycled by the recycling hopper (4) to above the placing net (3) is further arranged in the sand dust test box body (1), characterized in that: The circulating assembly (5) comprises a blower (51) fixed in the sand dust test box body (1), an air inlet pipe (52) fixedly connected with the air inlet of the blower (51) and communicated with the bottom of the recycling hopper (4), and an air outlet pipe (53) penetrating through the vertical plate (2) and fixed at one end, wherein the air inlet end of the air outlet pipe (53) is fixedly connected with the air outlet of the blower (51), and the circulating assembly (5) further comprises a hose (54) fixedly connected with the air outlet end of the air outlet pipe (53), and the sand dust test box body (1) is provided with an adjusting mechanism (6) for adjusting the direction of the air outlet of the hose (54). ​ 2. The wind port adjustment device for a sand and dust test chamber according to claim 1, characterized in that: The adjusting mechanism (6) comprises a mounting assembly (61), the mounting assembly (61) comprises a mounting ring unit (611) sleeved on the hose (54) and matched with the hose (54), a mounting rod unit (612) fixedly connected with the top wall in the sand dust test box body (1), and a ball (613) fixedly connected with the lower end of the mounting rod unit (612) and spherically connected with the mounting ring unit (611); the adjusting mechanism (6) further comprises a connecting assembly (62) connected with the bottom of the mounting ring unit (611), and a driving assembly (63) for controlling the rotation of the mounting ring unit (611) around the ball (613) through the connecting assembly (62).

3. The device according to claim 2, characterized in that: The connecting assembly (62) comprises a movable rod (621) penetrating through the top of the sand dust test box body (1) and being slidingly matched, a movable plate (622) fixedly connected with the upper end of the movable rod (621), an upper spring (623) sleeved on the movable rod (621) and fixed between the bottom of the movable plate (622) and the top of the sand dust test box body (1), a rotating shaft (624) penetrating through the side wall of the movable rod (621) at a position close to the lower end of the movable rod (621), a connecting rod (625) hingedly connected with the end of the rotating shaft (624), and a T-shaped rod body (626) fixedly connected with the bottom of the mounting ring unit (611), wherein the connecting rod (625) is provided with two and symmetrically distributed on both sides of the mounting ring unit (611), one end of the connecting rod (625) away from the rotating shaft (624) is hingedly connected with the end of the T-shaped rod body (626), and the driving assembly (63) is abuttingly connected with the top of the movable plate (622) and controls the lifting of the movable plate (622).

4. The device according to claim 3, characterized in that: The top of the sand dust test box body (1) is fixedly connected with a shell (11) covering the outside of the movable plate (622), and the driving assembly (63) comprises a motor (631) fixed on the inner wall of the shell (11) and a cam (632) fixedly connected with the output end of the motor (631), and the bottom of the cam (632) is abuttingly connected with the top of the movable plate (622).

5. The device according to claim 3, characterized in that: The mounting rod unit (612) comprises a sleeve (6111) fixed to the inner top wall of the sand and dust test box body (1), a sliding plate (6112) in sliding fit with the inner wall of the sleeve (6111), a lower spring (6113) fixed between the inner top wall of the sand and dust test box body (1) and the top of the sliding plate (6112), and a vertical rod (6114) fixed to the bottom of the sliding plate (6112), wherein the lower end of the vertical rod (6114) is fixed to the top of the ball (613).

6. A dust test chamber air port adjustment device according to claim 5, characterized in that: The mounting ring unit (611) comprises a first circular ring (6121) sleeved on the hose (54) and a second circular ring (6122) sleeved on the hose (54), the first circular ring (6121) and the second circular ring (6122) abut against each other, recesses (7) matched with the ball (613) are arranged at the intersection between the top of the first circular ring (6121) and the side of the first circular ring (6121) close to the second circular ring (6122) and at the intersection between the top of the second circular ring (6122) and the side of the second circular ring (6122) close to the first circular ring (6121), the upper end of the vertical section of the T-shaped rod body (626) is fixed to the bottom of the first circular ring (6121) or the bottom of the second circular ring (6122), the second circular ring (6122) is provided with a bolt (8) in gap fit with the second circular ring (6122) penetrating through the second circular ring (6122), and the end of the bolt (8) is in threaded connection with the side of the first circular ring (6121) close to the second circular ring (6122).

7. A device for regulating the air flow from the air inlet of a sand and dust test chamber according to claim 6, characterized in that: The bolt (8) is a round head socket head bolt, and the side wall of the second circular ring (6122) away from the first circular ring (6121) is provided with an accommodating hole (9) for accommodating the head of the bolt (8).

8. The device according to claim 6, characterized in that: The cross section of the movable rod (621) is rectangular.

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