Salt spray testing machine

Abstract

The utility model provides a salt spray testing machine which comprises a box body and an opening and closing door arranged on the front side of the box body, a salt spray spraying unit is arranged at the position, close to the left side, in the box body, an object placing plate with a plurality of first through holes is horizontally arranged at the position, located on the right side of the salt spray spraying unit, in the box body, and a placing plate capable of horizontally moving left and right is arranged above the object placing plate. A plurality of second through holes are formed in the placement plate, an exhaust pipe is arranged in the box body and located below the placement plate, and the tail end of the exhaust pipe penetrates out of the side wall of the box body and is connected to a tail gas treatment unit. The salt spray test box has the beneficial effects that the salt spray is sprayed into the box body through the salt spray spraying unit, the fixed storage plate is arranged in the box body and is used for placing one or more samples to be tested for salt spray test, and the placing plate capable of moving towards or away from the salt spray spraying unit is arranged above the storage plate and is used for placing the samples to be tested for salt spray test. The device is used for accurately determining the position of a tested sample for contrast test.

Description

Technical Field

[0001] The utility model belongs to the field of salt spray test equipment, in particular to a salt spray testing machine. Background Art

[0002] Salt spray corrosion is a common and most destructive atmospheric corrosion. The main corrosive component is sodium chloride in the ocean, which can damage products. In order to test the corrosion resistance of products, salt spray tests are often required after production to simulate salt spray corrosion in the atmosphere and finally test the corrosion resistance of the samples.

[0003] At present, the functions of the used salt spray testing machines are relatively single. The samples to be tested are placed in the box body, and then salt spray is sprayed into the box body. During the test, multiple groups of tests are often required for comparison, such as the control of salt spray concentration, time, and the distance between the sample and the salt spray spraying unit. Among them, the control of the distance between the sample and the salt spray spraying unit often needs to be adjusted by the operator at the initial stage of the test, that is, the sample to be tested is placed at the required position before the test. The operation is not flexible and it is not convenient for later adjustment. Summary of the Utility Model

[0004] In view of this, the utility model aims to overcome the above deficiencies in the prior art and proposes a salt spray testing machine.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A salt spray testing machine includes a box body and an opening and closing door arranged on the front side of the box body. A salt spray spraying unit is arranged near the left side inside the box body. A placing plate with a plurality of first through holes is horizontally arranged on the right side of the salt spray spraying unit inside the box body. A placing plate capable of horizontally moving left and right is arranged above the placing plate, and a plurality of second through holes are arranged on the placing plate. An exhaust pipe is arranged below the placing plate inside the box body, and the end of the exhaust pipe passes through the side wall of the box body and is connected to a tail gas treatment unit.

[0007] Further, the right end of the placing plate is fixedly connected to the right inner wall of the box body, and the left end is fixedly connected to a vertical plate fixedly connected to the bottom of the box body.

[0008] Further, a guide rod and a lead screw are arranged between the vertical plate and the right side wall of the box body below the placing plate. The end of the lead screw is fixedly connected to the output shaft of a motor fixedly connected to the outer side wall of the box body. A connecting block is connected between the guide rod and the lead screw. A connecting platform is fixedly connected to the upper side of the connecting block. A through groove is opened in the placing plate along the left and right directions corresponding to the connecting platform. The connecting platform passes through the through groove and can move left and right along the through groove. The placing plate is fixedly connected to the upper side of the connecting platform.

[0009] Further, a limiting edge integrally formed upward is arranged along the four peripheral edges on the upper side of the placing plate.

[0010] Furthermore, a counterbore is provided in the middle of the bottom of the connecting block, and a threaded hole is provided on the connecting table corresponding to the counterbore. The connecting block and the connecting table are fixedly connected together through the cooperation of bolts with the counterbore and the threaded hole.

[0011] Furthermore, a plurality of reinforcing ribs are provided between the connecting table and the placing plate.

[0012] Furthermore, the salt spray spraying unit includes a connecting pipe vertically arranged in the box body and a fog inlet pipe passing through the side wall of the box body and communicating with the connecting pipe. The bottom of the connecting pipe is fixedly connected to the bottom of the box body, and the top of the connecting pipe is higher than the placing plate. A spray cap is provided at the top of the connecting pipe, and the bottom of the spray cap is fixedly connected to the mounting block through a plurality of support columns. The mounting block is screwed on the outer side of the top of the connecting pipe.

[0013] Furthermore, a plurality of integrally formed branch pipes are evenly provided on both the upper side and the lower side of the exhaust pipe.

[0014] Furthermore, an air inlet is provided at the top of the box body, and a sealing plug is provided at the air inlet. The tail gas treatment unit includes a tail gas box filled with porous sponge, and a dissolving liquid is adsorbed in the porous sponge. The end of the exhaust pipe is connected to the inlet of the tail gas box through an air extraction pump, and an outlet is provided on the tail gas box.

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

[0016] The salt spray testing machine of the present utility model sprays salt spray into the box body through the salt spray spraying unit. A fixed placing plate is arranged in the box body for placing one or more samples to be tested for salt spray testing. A placing plate that can move towards or away from the salt spray spraying unit is arranged above the placing plate for accurately determining the position of the samples to be tested for comparative testing. First through holes and second through holes are arranged on the placing plate and the placing plate to facilitate the salt spray to pass through and be discharged from the exhaust pipe out of the box body, and finally be discharged into the atmosphere through the treatment of the tail gas treatment unit; the device has diverse functions, meets the requirements for position adjustment of the samples to be tested at any time, and can also simultaneously conduct comparative tests on changing the distance between the samples to be tested and the salt spray spraying unit. The operation is simple and convenient, and the test effect is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 is a schematic structural diagram of the salt spray testing machine according to an embodiment of the present utility model;

[0019] Figure 2 is a front view of the salt spray testing machine according to an embodiment of the present utility model;

[0020] Figure 3 Schematic diagram of the connection structure between the connection block and the connection platform described in the embodiment of the present utility model.

[0021] Explanation of reference numerals:

[0022] 1. Box body; 101. Air inlet; 2. Connecting pipe; 3. Mist inlet pipe; 4. Spray cap; 5. Support column; 6. Mounting block; 7. Vertical plate; 8. Placing plate; 801. First through hole; 802. Through groove; 9. Placing board; 901. Second through hole; 902. Limiting edge; 10. Exhaust pipe; 1001. Branch pipe; 11. Lead screw; 12. Guide rod; 13. Connection block; 1301. Counterbore; 14. Connection platform; 15. Motor; 16. Reinforcing rib; 17. Plug. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0027] As shown in the figure, a salt spray test machine includes a box body 1 and an opening and closing door (not shown in the figure) provided on the front side of the box body 1. A salt spray spraying unit is provided near the left side inside the box body 1. A placing plate 8 with a plurality of first through holes 801 is horizontally provided on the right side of the salt spray spraying unit inside the box body 1. A placing plate 9 capable of horizontally moving left and right is provided above the placing plate 8, and a plurality of second through holes 901 are provided on the placing plate 9. An exhaust pipe 10 is provided below the placing plate 8 inside the box body 1. The end of the exhaust pipe 10 passes through the side wall of the box body 1 and is connected to an exhaust gas treatment unit (not shown in the figure). In this embodiment, salt spray is sprayed into the box body 1 through the salt spray spraying unit. A fixed placing plate 8 is provided inside the box body 1 for placing one or more samples to be tested for salt spray tests. A placing plate 9 capable of moving towards or away from the salt spray spraying unit is provided above the placing plate 8 for accurately determining the position of the samples to be tested for comparative tests. First through holes 801 and second through holes 901 are provided on the placing plate 8 and the placing plate 9 to facilitate the salt spray to pass through and be discharged from the box body 1 through the exhaust pipe 10, and finally discharged into the atmosphere after being treated by the exhaust gas treatment unit.

[0028] The right end of the placing plate 8 is fixedly connected to the right inner wall of the box body 1, and the left end is fixedly connected to a vertical plate 7 fixedly connected to the bottom of the box body 1.

[0029] A guide rod 12 and a lead screw 11 are provided between the vertical plate 7 and the right side wall of the box body 1 and are located below the placing plate 8. The end of the lead screw 11 is fixedly connected to the output shaft of a motor 15 fixedly connected to the outer side wall of the box body 1. A connecting block 13 is connected between the guide rod 12 and the lead screw 11. A connecting platform 14 is fixedly connected to the upper side of the connecting block 13. A through groove 802 is opened in the upper side of the placing plate 8 corresponding to the connecting platform 14 in the left-right direction. The connecting platform 14 passes through the through groove 802 and can move left and right along the through groove 802. The placing plate 9 is fixedly connected to the upper side of the connecting platform 14. In this embodiment, the connecting block 13 is sleeved on the guide rod 12 and screwed to the lead screw 11. When the motor 15 drives the lead screw 11 to rotate, the connecting block 13 moves along the guide rod 12, and then drives the upper placing plate 9 to move left and right through the connecting platform 14, realizing the control of the distance between the samples to be tested on the placing plate 9 and the salt spray spraying unit.

[0030] A limiting edge 902 is integrally formed upward along the four peripheral edges of the upper side of the placing plate 9 to prevent the samples to be tested from sliding out of the placing plate 9 due to inertia at the moment when the placing plate 9 stops and starts to move.

[0031] A counterbore 1301 is opened in the middle of the bottom of the connecting block 13. A threaded hole is provided on the connecting platform 14 corresponding to the counterbore 1301. The connecting block 13 and the connecting platform 14 are fixedly connected together through the cooperation of a bolt with the counterbore 1301 and the threaded hole. Such a design facilitates the installation of the connection structure between the connecting block 13 and the connecting platform 14 at the placing plate 8.

[0032] A plurality of reinforcing ribs 16 are provided between the connecting platform 14 and the placing plate 9 to increase the load-bearing capacity of the placing plate 9.

[0033] The salt spray spraying unit includes a connecting pipe 2 vertically arranged in the box body 1 and a fog inlet pipe 3 passing through the side wall of the box body 1 and communicating with the connecting pipe 2. The bottom of the connecting pipe 2 is fixedly connected to the bottom of the box body 1. On the one hand, it plays a supporting role for the salt spray spraying unit, and on the other hand, it guides the salt spray so that the salt spray diffuses out from the upper end of the connecting pipe 2. Moreover, the top end of the connecting pipe 2 is higher than the placing plate 9, which is convenient for the salt spray to directly act on the sample to be measured after being ejected. A spray cap 4 is provided at the top end of the connecting pipe 2, and the bottom of the spray cap 4 is fixedly connected to the mounting block 6 through a plurality of support columns 5. The mounting block 6 is screwed on the outer side of the top end of the connecting pipe 2, which is convenient for replacing the spray cap 4.

[0034] A plurality of integrally formed branch pipes 1001 are uniformly provided on the upper side and the lower side of the exhaust pipe 10, which is convenient for the salt spray in the box body 1 to enter the exhaust pipe 10 and be sucked away.

[0035] An air inlet 101 is provided at the top of the box body 1, and a sealing plug 17 is provided at the air inlet 101. The tail gas treatment unit includes a tail gas box filled with porous sponge, and a dissolving liquid is adsorbed in the porous sponge. The end of the exhaust pipe 10 is connected to the inlet of the tail gas box through an air extraction pump, and an outlet is provided on the tail gas box. In this embodiment, when exhausting, the air extraction pump is started, and the sealing plug 17 is opened. After the salt spray is drawn into the tail gas box, it fully contacts with the dissolving liquid, the salt spray is dissolved and filtered, and then discharged from the outlet of the tail gas box.

[0036] The working process of this embodiment is as follows:

[0037] Place the sample to be measured on the placing plate 9 or the placing rack 8, connect the fog inlet pipe 3 to the salt spray generator, and spray it into the box body 1 through the fog inlet pipe 3 and the connecting pipe 2 to form a salt spray environment in the box body 1 for salt spray testing. If the sample to be measured is placed on the placing plate 9 and the distance between it and the salt spray spraying unit needs to be adjusted, then start the motor 15 to drive the lead screw 11 to rotate, and then drive the placing plate 9 to move horizontally through the connecting block 13. After the test is completed, start the air extraction pump and open the sealing plug 17 to suck the salt spray in the box body 1 into the tail gas box through the exhaust pipe 10. After the salt spray is dissolved by the dissolving liquid in the tail gas box, it is discharged into the atmosphere.

[0038] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A salt spray test machine, characterized in that: It includes a box body and an opening and closing door arranged on the front side of the box body, a salt mist spraying unit is arranged near the left side inside the box body, a storage plate with multiple first through holes is arranged horizontally on the right side of the salt mist spraying unit in the box body, a placement plate which can be moved horizontally left and right is arranged above the placement plate, and multiple second through holes are arranged on the placement plate, an exhaust pipe is arranged below the placement plate in the box body, and the end of the exhaust pipe passes through the side wall of the box body and is connected to the exhaust gas treatment unit.

2. A salt spray test machine according to claim 1, characterized in that: The right end of the storage plate is fixedly connected to the right inner wall of the box body, and the left end is fixedly connected to a vertical plate fixedly connected to the bottom of the box body.

3. A salt spray test machine according to claim 2, characterized in that: A guide rod and a lead screw are provided below the storage plate between the vertical plate and the right side wall of the box body, the end of the lead screw is fixedly connected to the output shaft of the motor fixedly connected to the outer side wall of the box body, and a connecting block is connected between the guide rod and the lead screw, a connecting platform is fixedly connected to the upper side of the connecting block, a through groove is opened in the left and right directions at the upper side of the storage plate corresponding to the connecting platform, the connecting platform is arranged through the through groove and can move left and right along the through groove, and the storage plate is fixedly connected to the upper side of the connecting platform.

4. A salt spray test machine according to claim 1, characterized in that: An integrally formed limiting edge is upwardly arranged at the edges around the upper side of the placement plate.

5. A salt spray test machine according to claim 3, characterized in that: A countersunk hole is opened in the middle of the bottom of the connection block, and a threaded hole is opened on the connection platform at a position corresponding to the countersunk hole. The connection block and the connection platform are fixedly connected together by the cooperation of bolts, the countersunk hole and the threaded hole.

6. A salt spray test machine according to claim 3, characterized in that: A plurality of reinforcing ribs are arranged between the connecting platform and the placing plate.

7. A salt spray test machine according to claim 1, characterized in that: The salt mist spraying unit includes a connecting pipe vertically arranged in a box body and a mist inlet pipe passing through a side wall of the box body and connected to the connecting pipe. The bottom of the connecting pipe is fixedly connected to the bottom of the box body, and the top of the connecting pipe is higher than the placement plate. A spray cap is arranged at the top of the connecting pipe, and the bottom of the spray cap is fixedly connected to a mounting block through a plurality of support columns. The mounting block is screwed to the outer side of the top of the connecting pipe.

8. A salt spray test machine according to claim 1, characterized in that: Multiple integrally formed branch pipes are evenly arranged on the upper and lower sides of the exhaust pipe.

9. A salt spray test machine according to claim 1, characterized in that: An air inlet is provided on the top of the box body, and a sealing plug is provided at the air inlet. The exhaust gas treatment unit includes an exhaust gas box filled with porous sponge, and the porous sponge is adsorbed with a solvent. The end of the exhaust pipe is connected to the inlet of the exhaust gas box through an exhaust pump, and an outlet is provided on the exhaust gas box.

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