Corrosion resistance testing device for spring steel wire

Abstract

The invention relates to the technical field of corrosion resistance testing, and particularly discloses a spring steel wire corrosion resistance testing device which comprises a test box assembly, a clamping mechanism is arranged in the test box assembly, a spring steel wire piece is placed on the clamping mechanism, and a spray tower assembly is arranged in the test box assembly. A partition plate opening and closing mist suction mechanism is further arranged above the spray tower assembly, and the partition plate opening and closing mist suction mechanism automatically changes the corrosion intensity of corrosive mist on the spring steel wire piece so as to observe the corrosion resistance effect of the spring steel wire piece under different corrosion intensities; the test box assembly comprises a test box body, and a cover groove is formed in the upper end of the test box body; according to the device, the spring steel wire piece can be eroded by salt mist particles in a flowing mode, and the concentration degree of the salt mist particles can be improved by directly sucking the salt mist particles from the spray nozzle for blowing, so that the extreme degree of the environment where the spring steel wire piece is located can be efficiently improved.

Description

Technical Field

[0001] This invention relates to the field of corrosion resistance testing technology, and more specifically to a device for testing the corrosion resistance of spring steel wire. Background Technology

[0002] During the production process, spring steel wire needs to undergo corrosion resistance testing. In order to observe the corrosion status of spring steel wire in extreme environments, staff will use a salt spray test chamber to test the corrosion resistance of spring steel wire. That is, the spring steel wire is placed in a salt spray test chamber, and the high-concentration salt spray environment simulated by the salt spray test chamber is used to observe the corrosion resistance of spring steel wire.

[0003] However, in actual use, the process of testing the corrosion resistance of spring steel wire using a salt spray test chamber still has the following shortcomings;

[0004] Firstly, in the current salt spray test chamber, a spray tower is used to atomize sodium chloride solution, thereby distributing salt spray particles evenly within the chamber. In this method, the salt spray particles diffuse throughout the chamber space, eroding the spring steel wire in a relatively static manner. However, in order to observe and compare the corrosion resistance of the spring steel wire under more extreme environments, the erosion method of the salt spray particles should be changed, that is, the relatively static salt spray particle erosion process should be changed to a relatively flowing erosion process. In the current technology, a fan is generally used to blow the smoke particles that have diffused in the test chamber. Although this method causes the smoke particles to flow, the smoke particles are relatively dispersed and not concentrated enough, which cannot effectively increase the degree of extremeness of the environment in which the spring steel wire is located.

[0005] Secondly, in the current salt spray test chamber, the spring steel wire is usually placed inside the test chamber. However, the spring steel wire should be under stress during actual use. The current salt spray test chamber cannot apply external force to the spring steel wire to put it under stress, thus making it impossible to better observe the corrosion resistance of the spring steel wire during actual operation.

[0006] Therefore, in order to solve the above problems, it is necessary to provide a device for testing the corrosion resistance of spring steel wire. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a spring steel wire corrosion resistance testing device to solve the problems existing in the background art.

[0008] The present invention provides the following technical solution: a spring steel wire corrosion resistance testing device, comprising a test chamber assembly, wherein a clamping mechanism is provided inside the test chamber assembly, and a spring steel wire component is placed on the clamping mechanism; a spray tower assembly is provided inside the test chamber assembly, wherein a partition opening and closing mist suction mechanism is provided above the spray tower assembly.

[0009] The partition opening and closing mist-absorbing mechanism automatically changes the erosion intensity of corrosive mist on the spring steel wire component, so as to observe the corrosion resistance effect of the spring steel wire component under different erosion intensities.

[0010] Furthermore, the test chamber assembly includes a test chamber body, the upper end of which has a cover groove, the inner side wall of which has a pipe hole, the bottom inner side wall of which has a drain hole, and a side box fixedly installed on the outer side of the test chamber body.

[0011] Furthermore, the clamping mechanism includes two side rails symmetrically installed on the two inner side walls of the test chamber. A left end plate is installed on the left end of each side rail, and a right end plate is movably sleeved on the right end of each side rail. Grooves are provided on both the left and right end plates, allowing the spring steel wire to be placed within them. A tension cylinder is fixedly installed on the outside of the test chamber. A pull rod is connected to the drive end of the tension cylinder, and the shaft end of the pull rod is fixedly connected to the right end plate. The left end... Both the left and right end plates have pressure blocks on their top surfaces. The bottom of each pressure block has an arc protrusion that matches the groove. When the pressure block is pressed down, the arc protrusion presses and fixes the spring steel wire placed in the groove. Bolts are movably sleeved at both ends of each pressure block. Threaded holes are opened at both ends of the left and right end plates. The pressure block is fixedly connected to the left and right end plates at both ends by bolts. A compression spring is sleeved on the shaft of each bolt. A fixing rod is fixedly connected between the left end plate and the inner wall of the test chamber.

[0012] Furthermore, the spray tower assembly includes a spray pipe, the pipe of the spray pipe is fixedly connected to the pipe hole, the inside of the pipe of the spray pipe is provided with an atomizing nozzle, a bracket is installed at the upper end of the pipe of the spray pipe, a partition is fixedly installed at the upper end of the bracket, and a cone is provided at the bottom of the partition, the cone is directly opposite the opening of the pipe of the spray pipe.

[0013] Furthermore, the partition member has an inner annular groove inside, and evenly distributed channel grooves on its surface. A limiting arc groove corresponding to the channel groove is formed in the inner annular groove. A movable disc is movably fitted into the inner annular groove. The movable disc has an open groove corresponding to the channel groove. Evenly distributed limiting arc strips are provided on the movable disc. Evenly distributed fan blades are fixedly installed at the outer end of the movable disc. A support rod is fixedly installed at the center of the upper end of the partition member, and a support bar is fixedly fitted onto the support rod. A fixing block is fixedly installed at the upper outer side of the movable disc, and a tension spring connects the fixing block and the end of the support bar. When the tension spring is not under force, the solid part on the movable plate located at the limiting arc strip closes the channel groove. When the movable plate rotates clockwise to stretch the tension spring, the limiting arc strip is screwed into the limiting arc groove and stopped moving. When the open groove aligns with the channel groove to open it, a cover is provided above the partition. A connecting block is fixedly connected between the cover and the inner wall of the test chamber. A duct is fixedly installed at the upper end of the cover. The duct communicates with the bottom space of the cover. A fan is provided in the duct. A blower is fixedly connected at the upper end of the duct. A blower chamber is fixedly installed at the end of the blower pipe. The blower chamber is located above the spring steel wire.

[0014] Furthermore, the back of the test chamber assembly is also provided with a liquid supply assembly, which includes a liquid tank. The liquid tank is fixedly installed on the back of the test chamber body. A pressure pump is fixedly installed at the rear end of the nozzle pipe. The pressure pump is located in the liquid tank. A cover box is fixedly installed at the upper end of the liquid tank. The cover box has an injection port.

[0015] Furthermore, a lid assembly is movably mounted on the test chamber assembly. The lid assembly includes a back frame, which is fixedly mounted on the back of the test chamber. A movable rod is movably mounted on the back frame, and a lid component is fixedly connected to the movable rod. The bottom end of the lid component fits into the lid groove.

[0016] Furthermore, a drainage assembly is fixedly installed on the bottom outer side of the test chamber assembly. The drainage assembly includes a drainage pipe, which is fixedly connected to a drainage hole, and a liquid valve is provided on the drainage pipe.

[0017] The technical effects and advantages of this invention are as follows:

[0018] 1. This invention is equipped with a baffle opening and closing mist suction mechanism. When it is necessary to change the erosion mode of salt spray particles, that is, to change the relatively static salt spray particle erosion process to a relatively flowing erosion process, the fan is started to draw air above the baffle. Under the action of airflow, the fan blades start to drive the movable disc to rotate clockwise. When the limiting arc strip is screwed into the limiting arc groove and stopped moving, the opening groove and the channel groove are aligned to open it. At this time, the salt spray particles released from the end of the nozzle are drawn into the blowpipe through the channel groove and the opening groove, and finally blown onto the spring steel wire component placed at the bottom through the blow chamber. In this way, the salt spray particles can erode the spring steel wire component in a flowing manner, and the method of directly drawing salt spray particles from the spray nozzle and blowing them can improve the concentration of salt spray particles, thereby effectively improving the extreme degree of the environment in which the spring steel wire component is located.

[0019] 2. The present invention is provided with a clamping mechanism. When the device is in use, the two ends of the spring steel wire are placed in the grooves opened in the left end plate and the right end plate respectively. Then, the bolts are tightened to press the pressure block onto the left end plate and the right end plate, thereby fixing the two ends of the spring steel wire. Then, the tension cylinder is activated to apply external force to the spring steel wire through the pull rod to stretch it, thereby simulating and observing the corrosion resistance performance of the spring steel wire in actual work. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the test chamber assembly structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the clamping mechanism of the present invention.

[0023] Figure 4 This is a schematic diagram of the spray tower assembly structure of the present invention.

[0024] Figure 5 This is a schematic diagram of the partition structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the partition opening and closing mist suction mechanism of the present invention.

[0026] Figure 7 This is a schematic diagram of the structure of the movable disc in this invention.

[0027] Figure 8 This is a partial cross-sectional structural diagram of the partition opening and closing mist-absorbing mechanism of the present invention.

[0028] Figure 9 This is a schematic diagram of the structure of the cover compartment of the present invention.

[0029] Figure 10This is a schematic diagram of the liquid supply component structure of the present invention.

[0030] Figure 11 This is a schematic diagram of the drainage component structure of the present invention.

[0031] The attached figures are labeled as follows: 1. Test chamber assembly; 101. Test chamber body; 102. Cover groove; 103. Pipe hole; 104. Drain hole; 105. Side chamber; 2. Clamping mechanism; 201. Side rail; 202. Left end plate; 203. Right end plate; 204. Pull cylinder; 205. Pull rod; 206. Pressure block; 207. Bolt; 208. Compression spring; 209. Fixing rod; 3. Spring steel wire component; 4. Spray tower assembly; 401. Spray pipe; 402. Bracket; 403. Partition plate component; 404. Conical body; 5. Partition plate opening and closing mist suction mechanism; 501. Inner ring groove; 502. Channel groove; 5 03. Limiting arc groove; 504. Movable plate; 505. Open groove; 506. Limiting arc strip; 507. Fan blade; 508. Support rod; 509. Support bar; 510. Fixing block; 511. Tension spring; 512. Cover chamber; 513. Connecting block; 514. Air duct; 515. Fan; 516. Blow pipe; 517. Blow chamber; 6. Liquid supply assembly; 601. Liquid tank; 602. Pressure pump; 603. Cover box; 604. Liquid injection port; 7. Box cover assembly; 701. Back frame; 702. Movable rod; 703. Box cover piece; 8. Drainage assembly; 801. Drainage pipe; 802. Liquid valve. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The spring steel wire corrosion resistance testing device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 1 The present invention provides a test device for the corrosion resistance of spring steel wire, including a test chamber assembly 1, a clamping mechanism 2 inside the test chamber assembly 1, a spring steel wire component 3 placed on the clamping mechanism 2, a spray tower assembly 4 inside the test chamber assembly 1, a partition opening and closing mist suction mechanism 5 above the spray tower assembly 4, a liquid supply assembly 6 on the back of the test chamber assembly 1, a cover assembly 7 movably installed on the test chamber assembly 1, and a drain assembly 8 fixedly installed on the bottom outer side of the test chamber assembly 1;

[0034] In this embodiment, the clamping mechanism 2 is used to place and clamp the spring steel wire 3. The clamping mechanism 2 can also provide tension to the spring steel wire 3 to simulate the corrosion process of the spring steel wire 3 under high-intensity tension. The spray tower assembly 4 can atomize the sodium chloride solution to form fine salt spray particles and spray them out and distribute them evenly inside the test chamber assembly 1, so as to observe the corrosion resistance of the spring steel wire 3 in extreme environments. The baffle opening and closing mist suction mechanism 5 can automatically change the erosion intensity of the salt spray on the spring steel wire 3 to observe the corrosion resistance effect of the spring steel wire 3 under different erosion intensities. The spray tower assembly 4 can draw the required sodium chloride solution from the liquid supply assembly 6. The box cover assembly 7 can cover and seal the test chamber assembly 1. The drain assembly 8 can discharge the sodium chloride solution in the test chamber assembly 1.

[0035] Reference Figure 2 and Figure 3 The test chamber assembly 1 includes a test chamber body 101, with a cover groove 102 at the upper end of the test chamber body 101, pipe holes 103 on the inner side wall of the test chamber body 101, and a drain hole 104 on the bottom inner side wall of the test chamber body 101. A side box 105 is fixedly installed on the outer side of the test chamber body 101. The clamping mechanism 2 includes two side rails 201, which are symmetrically installed on the two inner side walls of the test chamber body 101. A left end plate 202 is installed on the left end of the side rail 201, and a right end plate 203 is movably sleeved on the right end of the side rail 201. Grooves are provided on both the left end plate 202 and the right end plate 203, and spring steel wire 3 can be placed in the grooves. A tension cylinder 204 is fixedly installed on the outer side of the test chamber body 101. The drive end of the electric cylinder 204 is connected to a pull rod 205. The shaft end of the pull rod 205 is fixedly connected to the right end plate 203. The left end plate 202 and the right end plate 203 are both provided with pressure blocks 206. The bottom of the pressure blocks 206 is provided with an arc protrusion that fits into the groove. When the pressure blocks 206 are pressed down, their arc protrusions press and fix the spring steel wire 3 placed in the groove. Bolts 207 are movably sleeved at both ends of the pressure blocks 206. Threaded holes are opened at both ends of the left end plate 202 and the right end plate 203. The pressure blocks 206 are fixedly connected to the left end plate 202 and the right end plate 203 at both ends by bolts 207 respectively. A compression spring 208 is sleeved on the shaft of the bolt 207. A fixing rod 209 is fixedly connected between the left end plate 202 and the inner wall of the test chamber 101.

[0036] In this embodiment, the two ends of the spring steel wire 3 are placed in the grooves opened in the left end plate 202 and the right end plate 203, respectively. Then, the bolts 207 are tightened to press the pressure block 206 onto the left end plate 202 and the right end plate 203, thereby fixing the two ends of the spring steel wire 3. Then, the tension cylinder 204 is activated, and the spring steel wire 3 is stretched by applying external force through the pull rod 205, thereby simulating and observing the corrosion resistance performance of the spring steel wire in actual work.

[0037] Reference Figure 4 The spray tower assembly 4 includes a spray pipe 401, the pipe of the spray pipe 401 is fixedly connected to the pipe hole 103, the inside of the pipe of the spray pipe 401 is provided with an atomizing nozzle, a bracket 402 is installed at the upper end of the pipe of the spray pipe 401, a partition 403 is fixedly installed at the upper end of the bracket 402, and a cone 404 is provided at the bottom of the partition 403, the cone 404 is directly opposite the opening of the pipe of the spray pipe 401.

[0038] In this embodiment, sodium chloride solution is pumped into nozzle 401, and salt spray particles are sprayed outward from the opening through the atomizing nozzle installed inside. The salt spray particles collide with cone 404 and disperse in all directions under the protection of partition 403, and begin to permeate the entire interior space of test chamber 101.

[0039] Since the atomizing nozzle installed inside the nozzle 401 is a conventional technique used by those skilled in the art, its structure is not shown in the figure, and its specific structure is not described in detail in the specification.

[0040] Reference Figures 5-9 The partition 403 has an inner annular groove 501 inside, and evenly distributed channel grooves 502 on its surface. A limiting arc groove 503 corresponding to the channel groove 502 is formed in the inner annular groove 501. A movable disc 504 is movably sleeved in the inner annular groove 501. An open groove 505 corresponding to the channel groove 502 is formed on the movable disc 504. Evenly distributed limiting arc strips 506 are provided on the movable disc 504. Evenly distributed fan blades 507 are fixedly installed at the outer end of the movable disc 504. A support rod 508 is fixedly installed at the upper center of the partition 403. A support bar 509 is fixedly sleeved on the support rod 508. A fixing block 510 is fixedly installed at the upper outer side of the movable disc 504. A tension spring 511 connects the fixing block 510 and the end of the support bar 509. When no force is applied, the solid part on the movable disc 504 located at the limiting arc strip 506 closes the channel groove 502. When the movable disc 504 rotates clockwise to stretch the tension spring 511, the limiting arc strip 506 is screwed into the limiting arc groove 503 and stopped moving. When the open groove 505 aligns with the channel groove 502 to open it, a cover 512 is provided above the partition 403. A connecting block 513 is fixedly connected between the cover 512 and the inner wall of the test chamber 101. A duct 514 is fixedly installed at the upper end of the cover 512. The duct 514 communicates with the bottom space of the cover 512. A fan 515 is provided in the duct 514. A blow pipe 516 is fixedly connected at the upper end of the duct 514. A blow chamber 517 is fixedly installed at the end of the blow pipe 516. The blow chamber 517 is located above the spring steel wire 3.

[0041] In this embodiment, when it is necessary to change the erosion mode of salt spray particles, that is, to change the relatively static salt spray particle erosion process to a relatively flowing erosion process, the fan 515 is started to draw air above the partition 403. Under the action of airflow, the fan blade 507 starts to drive the movable disk 504 to rotate clockwise. When the limiting arc strip 506 is screwed into the limiting arc groove 503 and stopped moving, the open groove 505 is aligned with the channel groove 502 to open it. At this time, the salt spray particles released from the end of the nozzle 401 are drawn into the blow pipe 516 through the channel groove 502 and the open groove 505 and finally blown onto the spring steel wire 3 placed at the bottom through the blow chamber 517. In this way, the salt spray particles can erode the spring steel wire 3 in a flowing manner, and the method of directly drawing salt spray particles from the spray nozzle and blowing them can improve the concentration of salt spray particles, thereby effectively improving the extreme degree of the environment in which the spring steel wire 3 is located.

[0042] Reference Figure 10 The liquid supply component 6 includes a liquid tank 601, which is fixedly installed on the back of the test chamber 101. A pressure pump 602 is fixedly installed at the rear end of the nozzle 401. The pressure pump 602 is located in the liquid tank 601. A cover box 603 is fixedly installed at the upper end of the liquid tank 601. An injection port 604 is provided on the cover box 603.

[0043] In this embodiment, sodium chloride solution is injected into liquid tank 601 through injection port 604, and pressure pump 602 pumps sodium chloride solution into nozzle 401.

[0044] Reference Figure 10 The box cover assembly 7 includes a back frame 701, which is fixedly installed on the back of the test chamber 101. A movable rod 702 is movably installed on the back frame 701. The movable rod 702 is fixedly connected to the box cover part 703. The bottom end of the box cover part 703 fits into the cover groove 102.

[0045] In this embodiment, the above structure allows the cover 703 to be placed on the test chamber 101, thus sealing the space.

[0046] Reference Figure 11 The drainage assembly 8 includes a drainage pipe 801, which is fixedly connected to the drainage hole 104, and a liquid valve 802 is provided on the drainage pipe 801.

[0047] In this embodiment, the liquid valve 802 is used to open and close the drain pipe 801, thereby discharging and storing the sodium chloride solution deposited in the test chamber 101.

[0048] The working principle of this invention is as follows: When using the device, the two ends of the spring steel wire 3 are placed in the grooves opened in the left end plate 202 and the right end plate 203, respectively. Then, the bolts 207 are tightened to press the pressure block 206 onto the left end plate 202 and the right end plate 203, thereby fixing the two ends of the spring steel wire 3. Then, the tension cylinder 204 is activated, and the spring steel wire 3 is stretched by applying external force through the pull rod 205, thereby simulating and observing the corrosion resistance of the spring steel wire in actual work. When it is necessary to change the erosion mode of salt spray particles, that is, to change the relatively static salt spray particle erosion process to a relatively flowing erosion process, the fan 515 is started to draw air above the partition 403. Under the action of the airflow... When the fan blade 507 starts to drive the movable disk 504 to rotate clockwise, and the limiting arc strip 506 is screwed into the limiting arc groove 503 and stopped moving, the open groove 505 aligns with the channel groove 502 to open it. At this time, the salt spray particles released from the end of the nozzle 401 are sucked into the blow pipe 516 through the channel groove 502 and the open groove 505 and finally blown onto the spring steel wire 3 placed at the bottom through the blow chamber 517. In this way, the salt spray particles can be eroded on the spring steel wire 3 in a flowing manner, and the method of directly sucking salt spray particles from the spray nozzle and blowing them can improve the concentration of salt spray particles, thereby effectively improving the extreme degree of the environment in which the spring steel wire 3 is located.

[0049] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0050] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0051] In conclusion, 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 within the protection scope of the present invention.

Claims

1. A spring steel wire corrosion resistance testing device, comprising a test chamber assembly (1), wherein a clamping mechanism (2) is provided inside the test chamber assembly (1), a spring steel wire component (3) is placed on the clamping mechanism (2), and a spray tower assembly (4) is provided inside the test chamber assembly (1), characterized in that, The spray tower assembly (4) is also provided with a baffle opening and closing mist suction mechanism (5) above it; The partition opening and closing mist suction mechanism (5) automatically changes the erosion intensity of corrosive mist on the spring steel wire (3) in order to observe the corrosion resistance effect of the spring steel wire (3) under different erosion intensities.

2. The spring steel wire corrosion resistance testing device according to claim 1, characterized in that: The test chamber assembly (1) includes a test chamber body (101), a cover groove (102) is provided at the upper end of the test chamber body (101), a pipe hole (103) is provided on the inner side wall of the test chamber body (101), a drain hole (104) is provided on the bottom inner side wall of the test chamber body (101), and a side box (105) is fixedly installed on the outer side of the test chamber body (101).

3. The spring steel wire corrosion resistance testing device according to claim 1, characterized in that: The clamping mechanism (2) includes two side rails (201) symmetrically installed on the two inner side walls of the test chamber (101). A left end plate (202) is installed on the left end of each side rail (201), and a right end plate (203) is movably sleeved on the right end of each side rail (201). Grooves are provided on both the left end plate (202) and the right end plate (203), and the spring steel wire (3) can be placed in the grooves. A tension cylinder (204) is fixedly installed on the outside of the test chamber (101). A pull rod (205) is connected to the drive end of the tension cylinder (204). The shaft end of the pull rod (205) is fixedly connected to the right end plate (203). The left end plate (202) and the right end plate (203) are connected to each other. Each plate (203) is provided with a pressure block (206) on its upper part. The bottom of each pressure block (206) is provided with an arc protrusion that fits into the groove. When the pressure block (206) is pressed down, its arc protrusion presses and fixes the spring steel wire (3) placed in the groove. Both ends of the pressure block (206) are movably sleeved with bolts (207). Both ends of the left end plate (202) and the right end plate (203) are provided with threaded holes. The pressure block (206) is fixedly connected to the left end plate (202) and the right end plate (203) at both ends by bolts (207). A compression spring (208) is sleeved on the shaft of the bolt (207). A fixing rod (209) is fixedly connected between the left end plate (202) and the inner wall of the test chamber (101).

4. The spring steel wire corrosion resistance testing device according to claim 1, characterized in that: The spray tower assembly (4) includes a spray pipe (401), the pipe of the spray pipe (401) is fixedly connected to the pipe hole (103), the inside of the pipe of the spray pipe (401) is provided with an atomizing nozzle, a bracket (402) is installed at the upper end of the pipe of the spray pipe (401), a partition (403) is fixedly installed at the upper end of the bracket (402), and a cone (404) is provided at the bottom of the partition (403), the cone (404) is directly opposite the opening of the pipe of the spray pipe (401).

5. The spring steel wire corrosion resistance testing device according to claim 4, characterized in that: The partition (403) has an inner annular groove (501) inside, and evenly distributed channel grooves (502) are formed on the partition (403). A limiting arc groove (503) corresponding to the channel groove (502) is formed in the inner annular groove (501). A movable disc (504) is movably sleeved in the inner annular groove (501). An open groove (505) corresponding to the channel groove (502) is formed on the movable disc (504). The movable disc (504) has evenly distributed channel grooves (505). The movable disk (504) has uniformly distributed limiting arc strips (506), and uniformly distributed fan blades (507) are fixedly installed on the outer end of the movable disk (504). A support rod (508) is fixedly installed at the center of the upper end of the partition (403), and a support bar (509) is fixedly sleeved on the support rod (508). A fixing block (510) is fixedly installed on the upper outer side of the movable disk (504), and a tension spring (511) is connected between the fixing block (510) and the end of the support bar (509). 11) When no force is applied, the solid part of the movable disc (504) located at the limiting arc strip (506) closes the channel groove (502). When the movable disc (504) rotates clockwise to stretch the tension spring (511), the limiting arc strip (506) is screwed into the limiting arc groove (503) and stopped moving. When the open groove (505) aligns with the channel groove (502) to open it, a cover (512) is provided above the partition (403). The cover (512) and the test chamber (1) are connected. A connecting block (513) is fixedly connected between the inner walls of 01), and a duct (514) is fixedly installed at the upper end of the hood (512). The duct (514) is connected to the bottom space of the hood (512). A fan (515) is provided in the duct (514). A blower (516) is fixedly connected at the upper end of the duct (514). A blower (517) is fixedly installed at the end of the blower (516). The blower (517) is located above the spring steel wire (3).

6. The spring steel wire corrosion resistance testing device according to claim 4, characterized in that: The back of the test chamber assembly (1) is also provided with a liquid supply assembly (6). The liquid supply assembly (6) includes a liquid tank (601). The liquid tank (601) is fixedly installed on the back of the test chamber body (101). A pressure pump (602) is fixedly installed at the rear end of the pipe of the nozzle (401). The pressure pump (602) is located in the liquid tank (601). A cover box (603) is fixedly installed at the upper end of the liquid tank (601). An injection port (604) is opened on the cover box (603).

7. The spring steel wire corrosion resistance testing device according to claim 1, characterized in that: A cover assembly (7) is movably mounted on the test chamber assembly (1). The cover assembly (7) includes a back frame (701). The back frame (701) is fixedly mounted on the back of the test chamber body (101). A movable rod (702) is movably mounted on the back frame (701). A cover piece (703) is fixedly connected to the movable rod (702). The bottom end of the cover piece (703) fits into the cover groove (102).

8. The spring steel wire corrosion resistance testing device according to claim 1, characterized in that: A drain assembly (8) is fixedly installed on the bottom outer side of the test chamber assembly (1). The drain assembly (8) includes a drain pipe (801), which is fixedly connected to a drain hole (104). A liquid valve (802) is provided on the drain pipe (801).

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