A hydraulic oil identification device for an electro-hydraulic switch machine

Abstract

The present application discloses a hydraulic oil identification device for an electro-hydraulic switch machine, which relates to the technical field of electro-hydraulic switch machine hydraulic oil detection. It includes a detection box and a plurality of sample collection tubes detachably arranged on one side of the detection box. The sample collection tubes are arranged at intervals, and further includes: a timer fixedly arranged on the detection box, the timer is arranged corresponding to each sample collection tube, and each timer is located above the sample collection tube; a first electromagnet buckled on the upper end of the sample collection tube, the first electromagnet is electrically connected to an external power supply; a baffle plate rotatably arranged in the sample collection tube through a rotating shaft, the periphery of the baffle plate fits with the inner side wall of the sample collection tube, and the baffle plate is connected to the timer through a matching component; a ball, the ball is magnetically connected to the electromagnet. The present application has the effect of improving the effectiveness of hydraulic oil state detection.

Description

Technical Field

[0001] This application relates to the technical field of electro - hydraulic switch machine hydraulic oil detection, and particularly relates to an electro - hydraulic switch machine hydraulic oil identification device. Background Art

[0002] Electro - hydraulic switch machines are widely used in railway signal systems for realizing the conversion of turnouts. With the rapid development of rail transit systems, the reliability and maintenance efficiency of electro - hydraulic switch machines have become one of the key factors for ensuring the safe operation of trains. As an important working medium of electro - hydraulic switch machines, the performance of hydraulic oil directly affects the working stability and service life of the equipment. Therefore, timely and accurate detection and identification of the state of hydraulic oil are of great significance for preventing failures and extending the service life of the equipment.

[0003] Currently, common methods for detecting the state of hydraulic oil mainly include visual inspection, chemical analysis, and physical testing, etc. Specifically, visual inspection usually relies on the experience of operators to judge the color change and impurity content of hydraulic oil; chemical analysis requires sending samples to a laboratory for complex component analysis, which is time - consuming and costly; physical testing methods such as viscosity measurement and particle counting require specialized instrument equipment and have high requirements for the professional skills of operators. These methods have their own characteristics and are adopted to varying degrees in practical applications.

[0004] However, the above - mentioned traditional methods have some deficiencies. First, visual inspection is highly subjective and easily affected by human factors, resulting in a high misjudgment rate; second, although chemical analysis and physical testing are more accurate, they are complex in operation and long in cycle, making it difficult to meet the requirements of on - site rapid detection. In addition, most of the existing detection means can only be carried out under static conditions and cannot monitor the actual usage status of hydraulic oil in real time. These problems limit the effectiveness and reliability of hydraulic oil state detection, and there is an urgent need for a method and technology that can be used for on - site detection simply and quickly. Summary of the Invention

[0005] In order to improve the effectiveness of hydraulic oil state detection, this application provides an electro - hydraulic switch machine hydraulic oil identification device.

[0006] This application provides an electro - hydraulic switch machine hydraulic oil identification device, adopting the following technical scheme:

[0007] An electro - hydraulic switch machine hydraulic oil identification device includes a detection box and a sample collection tube detachably arranged on one side of the detection box. A plurality of the sample collection tubes are arranged at intervals, and further includes:

[0008] A timer, the timer is fixedly arranged on the detection box, the timer is arranged corresponding to the sample collection tube one by one, and each timer is located above the sample collection tube;

[0009] A first electromagnet, which is buckled on the upper end of the sample collection tube, and the first electromagnet is electrically connected to an external power supply;

[0010] A baffle, which is rotatably arranged in the sample collection tube through a rotating shaft, the periphery of the baffle fits with the inner side wall of the sample collection tube, and the baffle is connected to the timer through a matching component;

[0011] A ball, which is magnetically connected to the electromagnet.

[0012] By adopting the above technical solutions, the timer is arranged in one-to-one correspondence with the sample collection tube, and the falling time of the ball in each sample collection tube can be accurately controlled to ensure that the collected samples are representative. The first electromagnet is buckled on the upper end of the sample collection tube and is electrically connected to an external power supply. When needed, the falling of the ball can be controlled by the first electromagnet, so that the baffle is opened, so that the starting time of the ball is consistent, thereby increasing the detection accuracy.

[0013] Optionally, the matching component includes:

[0014] A pull rod, one end of which is fixedly connected to the baffle, and the other end of the pull rod extends out of the sample collection tube;

[0015] An insertion piece, which is slidably arranged in the timer, and the insertion piece is used to control the power on and off of the timer.

[0016] By adopting the above technical solutions, the sliding arrangement of the insertion piece in the timer and its function of controlling the power on and off of the timer ensure that the timer can be accurately started or stopped at a predetermined time point. The setting of the pull rod enables the opening or closing of the baffle to control the opening and closing of the timer, which is simple and easy to operate.

[0017] Optionally, a comparison component is detachably arranged at the lower end of the detection box, and the comparison component includes:

[0018] A colorimetric box, which is detachably arranged at the lower end of the detection box through a clamping member;

[0019] A colorimetric cuvette, which is fixedly arranged in the colorimetric box;

[0020] A colorimetric card disc, which is rotatably arranged in the colorimetric box, and the colorimetric card disc is located below the colorimetric cuvette;

[0021] A rotating block, which is rotatably arranged outside the colorimetric box, and the rotating block is rotatably connected to the colorimetric card disc through a rotating shaft;

[0022] Among them, an observation window is arranged on the colorimetric box, and the observation window is a transparent acrylic board.

[0023] By adopting the above technical solution, the colorimetric box is detachably arranged at the lower end of the detection box through the clamping parts, which is convenient for replacing and cleaning the colorimetric box, ensures the cleanliness of the test environment, improves the reliability of the test results, and the colorimetric cuvette is fixedly arranged in the colorimetric box, ensuring the stable placement of the sample and avoiding color deviation caused by shaking. The colorimetric disc is rotatably arranged in the colorimetric box and can be adjusted through the rotating block. The operation is simple and fast, and the closest standard color can be quickly found, further improving the identification efficiency. The observation window is made of transparent acrylic board, which has good light transmission performance, is convenient for clearly observing the colorimetric result, and reduces visual error.

[0024] Optionally, a clamping groove is vertically arranged at the lower end of the detection box, and sliding grooves are horizontally arranged at both ends of the clamping groove. The clamping parts include:

[0025] A clamping column, which is fixedly arranged at the upper end of the colorimetric box, and an embedding groove is arranged on the periphery of the clamping column;

[0026] A clamping block, which is slidably arranged in the sliding groove;

[0027] A first spring, one end of which is fixedly arranged at the bottom end of the sliding groove, and the other end of which is fixedly connected to the end of the clamping block away from the clamping column.

[0028] By adopting the above technical solution, the design of the clamping groove and the sliding groove enables the clamping column to be smoothly inserted and fixed at the lower end of the detection box, ensuring the stability of the colorimetric box. Under the action of the first spring, the clamping block can automatically pop out and be embedded into the embedding groove on the clamping column, realizing the self-locking function and preventing the colorimetric box from accidentally falling off. At the same time, the assembly efficiency is improved.

[0029] Optionally, a guiding inclined surface is arranged at the upper end of the clamping column.

[0030] By adopting the above technical solution, the guiding inclined surface can effectively guide the clamping column to smoothly enter the clamping groove, reduce the resistance caused by misalignment during the installation process, and improve the assembly efficiency.

[0031] Optionally, a control sensor is arranged at the bottom of the sample collection tube, and a second electromagnet is fixedly arranged on the side wall of the sample collection tube. The second electromagnet is electrically connected to the control sensor.

[0032] By adopting the above technical solution, when the ball drops to the preset height, the control sensor can detect this change and trigger the second electromagnet to work. That is, when the ball drops to the preset height, the control sensor controls the magnetic force of the second magnet to disappear, so that the baffle closes the sample collection tube, and at the same time drives the clamping block to move upward, so that the timer stops working. At the same time, the error caused by manual operation is reduced, and the reliability of the test results is improved.

[0033] Optionally, the sample collection tube is connected to the colorimetric cuvette through an injection tube, and a seal is provided at the connection between the injection tube and the colorimetric cuvette. The seal includes:

[0034] A sealing ring, which is fixedly arranged at the upper end of the colorimetric cuvette;

[0035] A sealing sleeve ring, which is connected to the end of the injection tube far away from the sample collection tube, and the sealing sleeve ring is clamped with the sealing ring.

[0036] By adopting the above technical solution, the sealing ring is fixedly arranged at the upper end of the colorimetric cuvette, ensuring the sealing performance of the top of the colorimetric cuvette and preventing liquid leakage. The sealing sleeve ring is clamped with the end of the injection tube far away from the sample collection tube, further enhancing the sealing and stability of the connection between the injection tube and the colorimetric cuvette, and effectively avoiding problems such as loosening and liquid leakage caused by vibration or external factors.

[0037] Optionally, a second spring is fixedly arranged at the upper end of the baffle. One end of the second spring is fixedly connected to the upper end of the baffle, and the other end of the second spring is fixedly connected to the inner wall of the sample collection tube.

[0038] By adopting the above technical solution, when the electromagnet loses its magnetism, the baffle can quickly reset, and at the same time drive the timer to stop timing, increasing the accuracy of timing.

[0039] In summary, the embodiment of the present invention provides an electro-hydraulic switch hydraulic oil identification device, including at least one of the following beneficial technical effects:

[0040] 1. The timer and the sample collection tube are arranged in one-to-one correspondence, and the falling time of the ball in each sample collection tube can be accurately controlled to ensure that the collected samples are representative. The first electromagnet is buckled on the upper end of the sample collection tube and electrically connected to an external power supply. When needed, the falling of the ball can be controlled by the first electromagnet, so that the baffle is opened, so that the starting time of the ball is the same, thereby increasing the detection accuracy.

[0041] 2. The sliding setting of the insert in the timer and its function of controlling the power-on and power-off of the timer ensure that the timer can be accurately started or stopped at a predetermined time point. The setting of the pull rod enables the opening or closing of the baffle to control the opening and closing of the timer, which is simple and easy to operate. Brief Description of the Drawings

[0042] Figure 1 It is a schematic structural diagram of a hydraulic oil identification device for an electro-hydraulic switch machine provided by an embodiment of the present invention;

[0043] Figure 2 It is a cross-sectional view of a hydraulic oil identification device for an electro-hydraulic switch machine provided by an embodiment of the present invention;

[0044] Figure 3 It is a cross-sectional view of a sample collection tube in a hydraulic oil identification device for an electro-hydraulic switch machine provided by an embodiment of the present invention;

[0045] Figure 4 It is a cross-sectional view of a matching component in a hydraulic oil identification device for an electro-hydraulic switch machine provided by an embodiment of the present invention;

[0046] Figure 5 It is a schematic structural diagram of a color comparison chuck in a hydraulic oil identification device for an electro-hydraulic switch machine provided by an embodiment of the present invention;

[0047] Figure 6 It is a cross-sectional view of a clamping part in a hydraulic oil identification device for an electro-hydraulic switch machine provided by an embodiment of the present invention;

[0048] Figure 7 It is a cross-sectional view of a sealing ring in a hydraulic oil identification device for an electro-hydraulic switch machine provided by an embodiment of the present invention.

[0049] Explanation of the marks in the figure:

[0050] 11. Detection box; 12. Sample collection tube; 13. Timer; 14. First electromagnet; 15. Baffle; 16. Ball;

[0051] 2. Matching component; 21. Pull rod; 22. Insert;

[0052] 3. Comparison component; 31. Color comparison box; 32. Colorimetric cell; 33. Color comparison chuck; 34. Rotating block; 35. Observation window;

[0053] 4. Clamping part; 41. Clamping column; 42. Clamping block; 43. First spring; 44. Clamping groove; 45. Sliding groove; 46. Embedding groove;

[0054] 51. Sealing ring; 52. Sealing sleeve ring; 53. Control sensor; 54. Second electromagnet; 55. Injection tube. Detailed Embodiment

[0055] The following will further elaborate on this application in conjunction with Figure 1-7 the accompanying drawings.

[0056] In conjunction with Figure 1 、 Figure 2 and Figure 3 ,an embodiment of this application discloses a hydraulic oil identification device for an electro - hydraulic switch machine, including: a detection box 11 and a sample collection tube 12 detachably arranged on one side of the detection box 11. A plurality of sample collection tubes 12 are arranged at intervals. It further includes a timer 13, a first electromagnet 14, a baffle 15, and a ball 16. The timer 13 is fixedly arranged on the detection box 11, and the timer 13 is arranged in one - to - one correspondence with the sample collection tube 12, and each timer 13 is located above the sample collection tube 12; the first electromagnet 14 is buckled on the upper end of the sample collection tube 12, and the first electromagnet 14 is electrically connected to an external power supply; the baffle 15 is rotatably arranged in the sample collection tube 12 through a rotating shaft, the peripheral side of the baffle 15 is in contact with the inner side wall of the sample collection tube 12, and the baffle 15 is connected to the timer 13 through a matching component 2; the ball 16 is magnetically connected to the electromagnet.

[0057] In the embodiment of this application, the detection box 11 is the main frame of the entire device, which can be made of metal materials and has high strength and corrosion resistance. The sample collection tube 12 can be connected to the detection box 11 by means of threads or buckles, etc., which is convenient for replacement and cleaning. The sample collection tube 12 is internally provided with a baffle 15, and the baffle 15 is rotatably arranged through a rotating shaft. The peripheral side of the baffle 15 is in close contact with the inner side wall of the sample collection tube 12 to prevent liquid leakage. The setting of the second spring enables the baffle 15 to remain closed when not under external force. The setting of the first electromagnet 14, when powered on, the first electromagnet 14 generates magnetism and attracts the ball 16 onto the first electromagnet 14. When the current is cut off, the first electromagnet 14 has no magnetism, causing the ball 16 to drop. The ball 16 is made of high - strength steel material and has good wear resistance and magnetism. To improve reliability, a permanent magnet can also be used instead of the electromagnet to reduce power consumption. Each upper end of the sample collection tube 12 is provided with a timer 13 for facilitating the observation of the falling time of each ball 16.

[0058] During specific use, the liquid to be detected and the specimen are sequentially placed into the sample collection tube 12, and then the power supply is disconnected, causing the magnetism of the first electromagnet 14 to disappear, so that the balls 16 in each sample collection tube 12 drop uniformly. The falling time of each ball 16 is observed through the timer 13, and then by observing the color of each liquid to be detected, it is comprehensively judged whether the hydraulic oil sample meets the usage standard.

[0059] In conjunction with Figure 3 and Figure 4In a specific application embodiment, the matching component 2 includes: a pull rod 21 and an insert 22, one end of the pull rod 21 is fixedly connected to the baffle 15, and the other end of the pull rod 21 extends out of the sample collection tube 12; the insert 22 is slidably arranged in the timer 13, and the insert 22 is used to control the power on and off of the timer 13.

[0060] In the embodiment of the present application, the pull rod 21 is a long rod. It should be noted that the pull rod 21 passes through the first electromagnet 14 and is connected to the plug 22. The plug 22 is an insulating sheet. When the plug 22 moves to the position of the battery of the timer 13, the setting of the plug 22 causes the timer 13 to be powered off. In specific use, when the baffle 15 rotates and fits the inner wall of the sample collection tube 12 due to the action of the ball 16, the baffle 15 rotates and moves, thereby driving the pull rod 21 to move downward, so that the pull rod 21 drives the plug 22 to leave the position of the battery of the timer 13, and the timer 13 starts timing.

[0061] Combination Figure 1 , Figure 5 and Figure 7 Specifically, a comparison assembly 3 is detachably provided at the lower end of the detection box 11, and the comparison assembly 3 includes: a colorimetric box 31, a colorimetric cell 32, a colorimetric chuck 33, and a rotating block 34. The colorimetric box 31 is detachably provided at the lower end of the detection box 11 through a clamping member 4; the colorimetric cell 32 is fixedly provided in the colorimetric box 31; the colorimetric chuck 33 is rotatably provided in the colorimetric box 31, and the colorimetric chuck 33 is located below the colorimetric cell 32; the rotating block 34 is rotatably provided outside the colorimetric box 31, and the rotating block 34 is rotatably connected to the colorimetric chuck 33 through a rotating shaft; wherein an observation window 35 is provided on the colorimetric box 31, and the observation window 35 is a transparent acrylic plate. The sample collecting tube 12 is connected to the cuvette 32 through an injection tube 55. A seal is provided at the connection between the injection tube 55 and the cuvette 32. The seal includes a sealing ring 51 and a sealing ferrule 52. The sealing ring 51 is fixedly arranged at the upper end of the cuvette 32. The sealing ferrule 52 and the injection tube 55 are away from one end of the sample collecting tube 12, and the sealing ferrule 52 is clamped with the sealing ring 51.

[0062] In the embodiment of the present application, the colorimetric box 31 is square-shaped, the width of the colorimetric box 31 is greater than the thickness of the detection box 11, and the colorimetric cuvette 32 is embedded in the colorimetric box 31. It should be noted that the colorimetric cuvette 32 is made of a transparent material, which can be glass or acrylic plate, as long as it can clearly show the color of the oil to be tested. The embodiment of the present application does not make specific limitations. The colorimetric disc 33 is disc-shaped, the colorimetric disc 33 rotates through the rotating block 34, and multiple colors are set on the colorimetric disc 33, and each color is fan-shaped, that is, multiple fan-shaped colors are spliced to form the colorimetric disc 33. More specifically, a colorimetric port is provided on the colorimetric box 31, the colorimetric port is fan-shaped, and the size specification of the colorimetric port is the same as that of one of the fan-shaped specifications of the colors, so that when the colorimetric disc 33 rotates, it is convenient to find the color similar to the oil. The rotating block 34 is cylindrical, and the rotating block 34 is fixedly connected to the colorimetric disc 33, that is, when the rotating block 34 rotates, the colorimetric disc 33 will also rotate accordingly. The injection tube 55 is circular, that is, it can connect the sample collection tube 12 and the colorimetric cuvette 32. The injection tube 55, the sealing ring 51 and the sealing sleeve 52 are made of rubber. Among them, the injection tube 55, the sealing ring 51 and the sealing sleeve 52 are snap-connected to seal the connection between the injection tube 55, the sealing ring 51 and the sealing sleeve 52.

[0063] During specific use, the colorimetric box 31 is fixedly connected to the detection box 11 through the clamping member 4. At the same time, the injection tube 55 is inserted into the colorimetric cuvette 32. During the connection process of the injection tube 55 and the colorimetric cuvette 32, the injection tube 55, the sealing ring 51 and the sealing sleeve 52 will be embedded with each other, so as to seal the connection between the injection tube 55 and the colorimetric cuvette 32 and prevent the oil to be tested from leaking from the connection. Then, the sampling oil is injected into the sample collection tube 12, so that the oil enters the colorimetric cuvette 32 through the injection tube 55. Then, the rotating block 34 is rotated to make the colorimetric disc 33 rotate, and it is observed through the colorimetric port whether the color of the colorimetric disc 33 is the same as the oil to be tested in the colorimetric cuvette 32, so as to quickly perform color comparison.

[0064] Combined with Figure 6 In a specific application embodiment, a clamping groove 44 is vertically provided at the lower end of the detection box 11, and sliding grooves 45 are horizontally provided at both ends of the clamping groove 44. The clamping member 4 includes a clamping column 41, a clamping block 42, and a first spring 43. The clamping column 41 is fixedly provided at the upper end of the colorimetric box 31, and an embedding groove 46 is provided on the periphery of the clamping column 41; the clamping block 42 is slidably arranged in the sliding groove 45; one end of the first spring 43 is fixedly provided at the bottom end of the sliding groove 45, and the other end of the first spring 43 is fixedly connected to the end of the clamping block 42 away from the clamping column 41.

[0065] In the embodiment of the present application, the clamping groove 44, the sliding groove 45 and the embedding groove 46 are all square-shaped. It should be noted that the sliding groove 45 and the embedding groove 46 are arranged oppositely. The specification of the clamping post 41 is set according to the specification of the clamping groove 44, which is not specifically limited in the embodiment of the present application. The clamping block 42 is square-shaped and can slide in the sliding groove 45. A guiding inclined surface is arranged at the upper end of the clamping post 41. Specifically, a guiding inclined surface is arranged at the lower end of the clamping groove 44.

[0066] During specific use, when in specific use, align the clamping post 41 at the upper end of the colorimetric box 31 with the clamping groove 44 at the lower end of the detection box 11 to ensure that the clamping post 41 can be smoothly inserted into the clamping groove 44. During the process of inserting the clamping post 41 into the clamping groove 44, due to the design of the guiding inclined surface at the upper end of the clamping post 41, the clamping block 42 will be squeezed and slide inwards along the sliding groove 45. At the same time, the first spring 43 will be compressed to store elastic potential energy. When the clamping post 41 is completely inserted into the clamping groove 44, the clamping block 42 will slide outwards along the sliding groove 45 under the elastic force of the first spring 43 until a part of the clamping block 42 is embedded in the embedding groove 46 on the circumferential side of the clamping post 41. At this time, the cooperation between the clamping block 42 and the embedding groove 46 realizes the locking between the colorimetric box 31 and the detection box 11. When it is necessary to disassemble the colorimetric box 31, since there is also a guiding inclined surface on the clamping groove 44, pull the colorimetric box 31 and the detection box 11 towards the mutually far ends, and the clamping block 42 moves towards the end far from the embedding groove 46 to disengage it from the embedding groove 46. After the clamping block 42 is unlocked, the clamping post 41 at the upper end of the colorimetric box 31 can be gently pulled out to disengage it from the clamping groove 44 at the lower end of the detection box 11. As the clamping post 41 is pulled out, the connection between the colorimetric box 31 and the detection box 11 is disconnected, and at this time, the colorimetric box 31 can be removed from the detection box 11.

[0067] Looking back Figure 3 and Figure 4 Specifically, a control sensor 53 is arranged at the bottom of the sample collection tube 12, and a second electromagnet 54 is fixedly arranged on the side wall of the sample collection tube 12. The second electromagnet 54 is electrically connected to the control sensor 53. A second spring is fixedly arranged at the upper end of the baffle 15. One end of the second spring is fixedly connected to the upper end of the baffle 15, and the other end of the second spring is fixedly connected to the inner wall of the sample collection tube 12.

[0068] In the embodiment of the present application, when the ball 16 drops to a preset height, the control sensor 53 can detect this change and trigger the second electromagnet 54 to work. That is, when the ball 16 drops to a preset height, the control sensor 53 controls the magnetic property of the second magnet to disappear, so that the baffle 15 closes the sample collection tube 12, and at the same time drives the clamping block to move upwards, so that the timer 13 stops working. At the same time, the error caused by manual operation is reduced, and the reliability of the test result is improved. Under the elastic recovery action of the second spring, the baffle 15 is reset.

[0069] The implementation principle of the embodiment of this application is as follows: The colorimetric box 31 is fixedly connected to the detection box 11 through the clamping member 4. At the same time, the injection tube 55 is inserted into the colorimetric dish 32. During the connection process of the injection tube 55 and the colorimetric dish 32, the sealing ring 51 and the sealing sleeve 52 of the injection tube 55 will be embedded with each other, so as to seal the connection between the injection tube 55 and the colorimetric dish 32 and prevent the oil sample to be measured from leaking from the connection. Then, the sampling oil is injected into the sample collection tube 12, so that the oil enters the colorimetric dish 32 through the injection tube 55. Then, the rotating block 34 is rotated to make the colorimetric chuck 33 rotate, and the color of the colorimetric chuck 33 is observed through the colorimetric port to see if it is the same as the oil sample to be measured in the colorimetric dish 32, so that the color comparison can be quickly carried out.

[0070] This specific embodiment is only an interpretation of this application, and it does not limit this application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions according to needs, but as long as it is within the scope of the claims of this application, it is protected by the patent law.

Claims

1. An identification device for the hydraulic oil of an electro-hydraulic switch machine, comprising a detection box (11) and a sample collection tube (12) detachably arranged on one side of the detection box (11), wherein a plurality of the sample collection tubes (12) are arranged at intervals, and is characterized in that, It further includes: A timer (13), the timer (13) is fixedly arranged on the detection box (11), the timer (13) is arranged in one-to-one correspondence with the sample collection tube (12), and each timer (13) is located above the sample collection tube (12); A first electromagnet (14), the first electromagnet (14) is buckled on the upper end of the sample collection tube (12), and the first electromagnet (14) is electrically connected to an external power supply; A baffle (15), the baffle (15) is rotatably arranged in the sample collection tube (12) through a rotating shaft, the peripheral side of the baffle (15) is attached to the inner side wall of the sample collection tube (12), and the baffle (15) is connected to the timer (13) through a matching component (2); A ball (16), the ball (16) is magnetically connected to the electromagnet; The matching component (2) includes: A pull rod (21), one end of the pull rod (21) is fixedly connected to the baffle (15), and the other end of the pull rod (21) extends out of the sample collection tube (12); An insertion piece (22), the insertion piece (22) is slidably arranged in the timer (13), and the insertion piece (22) is used to control the power on and off of the timer (13); A control sensor (53) is arranged at the bottom of the sample collection tube (12), and a second electromagnet (54) is fixedly arranged on the side wall of the sample collection tube (12), and the second electromagnet (54) is electrically connected to the control sensor (53); A second spring is fixedly arranged at the upper end of the baffle (15), one end of the second spring is fixedly connected to the upper end of the baffle (15), and the other end of the second spring is fixedly connected to the inner wall of the sample collection tube (12).

2. The hydraulic oil identification device for an electro-hydraulic switch machine according to claim 1, wherein A comparison component (3) is detachably arranged at the lower end of the detection box (11), and the comparison component (3) includes: A colorimetric box (31), the colorimetric box (31) is detachably arranged at the lower end of the detection box (11) through a clamping component (4); A colorimetric dish (32), the colorimetric dish (32) is fixedly arranged in the colorimetric box (31); A colorimetric chuck (33), the colorimetric chuck (33) is rotatably arranged in the colorimetric box (31), and the colorimetric chuck (33) is located below the colorimetric dish (32); A rotating block (34), the rotating block (34) is rotatably arranged outside the colorimetric box (31), and the rotating block (34) is rotatably connected to the colorimetric chuck (33) through a rotating shaft; Wherein, an observation window (35) is arranged on the colorimetric box (31), and the observation window (35) is a transparent acrylic plate.

3. The hydraulic oil identification device for an electro-hydraulic switch machine according to claim 2, characterized in that, A clamping groove (44) is vertically arranged at the lower end of the detection box (11), and sliding grooves (45) are horizontally arranged at both ends of the clamping groove (44), and the clamping component (4) includes: A clamping column (41), the clamping column (41) is fixedly arranged at the upper end of the colorimetric box (31), and an embedding groove (46) is arranged on the peripheral side of the clamping column (41); A clamping block (42), the clamping block (42) is slidably arranged in the sliding groove (45); The first spring (43), one end of the first spring (43) is fixedly arranged at the bottom end of the sliding groove (45), and the other end of the first spring (43) is fixedly connected to the end of the clamping block (42) away from the clamping column (41).

4. The hydraulic oil identification device for an electro-hydraulic switch machine according to claim 3, wherein A guiding inclined surface is arranged at the upper end of the clamping column (41).

5. The hydraulic oil identification device for an electro-hydraulic switch machine according to claim 2, characterized in that: The sample collection tube (12) is connected to the colorimetric cuvette (32) through an injection tube (55), and a seal is arranged at the connection of the injection tube (55) and the colorimetric cuvette (32). The seal includes: A sealing ring (51), the sealing ring (51) is fixedly arranged at the upper end of the colorimetric cuvette (32); A sealing sleeve ring (52), the sealing sleeve ring (52) is connected to the end of the injection tube (55) away from the sample collection tube (12), and the sealing sleeve ring (52) is clamped with the sealing ring (51).

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