Engine cold and hot impact test equipment

Abstract

The invention relates to the field of engine cold and hot impact tests, in particular to engine cold and hot impact test equipment, which comprises a test box, an upper box door and a lower box door, the test box comprises a box body, an upper box door and a lower box door, the upper box door and the lower box door are rotatably connected with the box body, and the upper box door and the lower box door are respectively provided with an observation window and a first sealing ring; the upper box door and the lower box door respectively correspond to a heating chamber and a cooling chamber of the test box; the cleaning mechanism comprises a cleaning assembly which is arranged on the lower box door and used for removing water and frost from the observation window, and the lower box door is further provided with a collecting assembly used for collecting water and frost removed by the cleaning assembly; the cleaning assembly comprises a scraping plate arranged on one side of the lower box door; the collecting assembly comprises a storage box connected with the lower box door, water drops or frost on an observation window of the lower box door is scraped off through the cleaning assembly, the situation that the view of the observation window is affected by the water drops or the frost is avoided, and the frost and the water drops removed by the cleaning assembly are collected through the collecting assembly.

Description

Technical Field

[0001] The invention relates to the field of engine thermal shock test, in particular to engine thermal shock test equipment. Background Art

[0002] The engine thermal shock test is an important test method that uses a thermal shock test chamber to simulate the extreme temperature changes that the engine may encounter during actual use, such as driving in cold areas in winter or exploring in extreme climate conditions. Thermal shock testing can ensure the performance and reliability of the engine and its components under these conditions, which is directly related to the safety and service life of the vehicle.

[0003] When the engine is subjected to hot and cold shock tests, a two-box hot and cold shock test chamber is mostly used to perform hot and cold shocks on the engine. During the test, the engine will first be placed in a basket, and the cylinder drives the chain to pull the basket up and down. The basket drives the engine to switch between the heating chamber and the cooling chamber, thereby realizing the hot and cold shock test of the engine.

[0004] However, when the engine is heated to a high temperature inside the heating chamber and then quickly enters the cooling chamber, water vapor will be generated because the engine surface temperature is much higher than the temperature of the cooling chamber. When the water vapor encounters the cold observation window glass, it condenses into water droplets or frost. The presence of frost and water droplets adhering to the observation window of the cooling chamber will reduce the transparency of the observation window, making it difficult for the operator to observe the situation inside the cooling chamber, affecting the monitoring and evaluation test process of the engine.

[0005] Therefore, in order to better observe the performance of the engine in a cold environment, it is necessary to scrape off the water droplets or frost on the observation window. In the prior art, when there are water droplets or frost on the observation window, most of them are removed by manually opening the door of the cooling chamber and manually using a rag. When the door of the cooling chamber is opened, the cooling chamber is connected to the outside world, causing the temperature of the cooling chamber to further rise, which in turn causes the engine to cool down more slowly. Alternatively, the cooling system is turned off, causing the temperature of the cooling chamber to rise, and the frost is automatically melted. However, during the engine test, it takes a long time to close the cooling chamber and wait until its temperature returns to normal, which affects the engine test.

[0006] Therefore, an engine thermal shock test device is proposed. Summary of the invention

[0007] In view of the fact that in the above or prior art, when there are water droplets or frost on the observation window, most of them are removed by manually opening the door of the cooling chamber and manually using a rag. When the door of the cooling chamber is opened, the cooling chamber is connected to the outside, causing the temperature of the cooling chamber to further rise, thereby causing the engine to cool down more slowly. Alternatively, the cooling system is turned off, so that the temperature of the cooling chamber rises and the frost automatically melts. However, during the engine test, it takes a long time to close the cooling chamber and wait until its temperature returns to normal, and this affects the engine test. Therefore, the present invention is proposed.

[0008] Therefore, an object of the present invention is to provide an engine thermal shock test device.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising: A test box, comprising a box body, an upper box door and a lower box door rotatably connected to the box body, wherein the upper box door and the lower box door are both provided with observation windows; The upper box door and the lower box door correspond to the heating chamber and the cooling chamber of the test chamber respectively; A cleaning mechanism, comprising a cleaning assembly disposed on the lower door for removing water and defrosting the observation window, and a collecting assembly disposed on the lower door for collecting water and frost removed by the cleaning assembly; The cleaning assembly includes a scraper disposed on one side of the lower box door; The collection assembly includes a storage box connected to the lower box door, and one side of the storage box is in contact with the side wall of the lower box door.

[0010] As a preferred solution of the engine thermal shock test equipment of the present invention, the cleaning assembly further comprises a driving member connected to the lower box door, and the output end of the driving member is connected to a horizontal plate; The scraper is installed at the bottom of the horizontal plate, and the scraper is inclined.

[0011] As a preferred solution of the engine thermal shock test equipment of the present invention, the driving member is a cylinder or an electric telescopic rod.

[0012] As a preferred solution of the engine thermal shock test equipment of the present invention, wherein: a mounting groove is provided inside the horizontal plate, a T-shaped plate and a first spring are provided inside the mounting groove, one end of the first spring is connected to the T-shaped plate, and the other end of the first spring is connected to the inner wall of the mounting groove; The T-shaped plate is composed of a horizontal section and a vertical section. The vertical section of the T-shaped plate slides out of the mounting groove and is connected to the scraper.

[0013] As a preferred solution of the engine hot and cold shock test equipment of the present invention, wherein: a guide slope is provided on one side of the top of the storage box, the guide slope is located on the side where the storage box is in contact with the lower box door, the bottom surface of the storage box is a slope, the slope divides the bottom of the storage box into a high end and a low end, and a drain outlet is provided at the bottom of the storage box, and the drain outlet is located at the lower end of the storage box.

[0014] As a preferred solution of the engine thermal shock test equipment of the present invention, the cleaning assembly further comprises an auxiliary groove provided on the T-shaped plate, wherein the auxiliary groove is provided with a first inclined surface and a second inclined surface, and a convex block is also slidably provided inside the auxiliary groove, and the convex block is provided with a third inclined surface and a fourth inclined surface; The third inclined surface corresponds to the first inclined surface, and the fourth inclined surface corresponds to the second inclined surface.

[0015] As a preferred solution of the engine thermal shock test equipment of the present invention, the horizontal plate is also provided with a vertical groove, a positioning block is slidably arranged inside the vertical groove, one end of the positioning block passes through the vertical groove and is connected to the convex block.

[0016] As a preferred solution of the engine thermal shock test equipment of the present invention, the collecting assembly further comprises a hollow tube detachably connected to the drain port, an annular block is fixedly arranged inside the hollow tube, a second spring is connected to the annular block, and a sealing plug is connected to one end of the second spring away from the annular block; The sealing plug matches the drain outlet.

[0017] As a preferred solution of the engine thermal shock test equipment of the present invention, the sealing plug is made of low-temperature resistant material.

[0018] As a preferred solution of the engine thermal shock test equipment of the present invention, the collection assembly also includes two L-shaped plates arranged at the bottom of the lower box door, a slide groove is formed between the two L-shaped plates, and a storage box is slidably arranged inside the slide groove.

[0019] The engine hot and cold shock test equipment of the present invention has the following beneficial effects: the cleaning component scrapes off the water droplets or frost on the observation window of the lower box door through the scraper, so as to prevent the water droplets or frost from affecting the field of view of the observation window, thereby affecting the observation of the changes of the engine after the operator enters a cold environment from a hot environment, and the cleaning component adopts a flexible scraping method, which reduces the wear of the scraper when scraping off the water droplets or frost on the observation window of the lower box door, and when the scraper moves to the bottom, the storage box cooperates to drive the scraper to move, so that the scraper will not contact the surface of the observation window of the lower box door when resetting, further reducing the wear of the scraper and the observation window of the lower box door; The collecting component collects the frost and water droplets removed by the cleaning component through a storage box. At the same time, when the cooling chamber is working, the bottom of the storage box is blocked, so that the frost and water droplets are deposited inside the storage box. When the cooling chamber stops working, the frost turns into water and is discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of the engine thermal shock test equipment; Figure 2 Schematic diagram of the cleaning component part of the engine thermal shock test equipment Figure 1 ; Figure 3 Schematic diagram of the cleaning component part of the engine thermal shock test equipment Figure 2 ; Figure 4 Schematic diagram of the cleaning component part of the engine thermal shock test equipment Figure 3 ; Figure 5 This is a schematic diagram of the structure of the collection components of the engine thermal shock test equipment; Figure 6 For engine thermal shock test equipment Figure 5 Schematic diagram of the enlarged structure at position A in the middle.

[0022] In the figure: 100, test box; 101, box body; 102, upper box door; 103, lower box door; 104, observation window; 200. Cleaning agencies; 201, cleaning assembly; 201a, scraper; 201b, driving member; 201c, horizontal plate; 201c-1, mounting groove; 201c-2, T-shaped plate; 201c-3, first spring; 201d, auxiliary groove; 201e, first inclined surface; 201f, second inclined surface; 201g, convex block; 201h, third inclined surface; 201i, fourth inclined surface; 202, collecting component; 202a, storage box; 202a-1, diversion slope; 202a-2, drain outlet; 202b, hollow tube; 202c, annular block; 202d, second spring; 202e, sealing plug; 202fL, template; 202g storage box. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] Example 1, reference Figure 1 to Figure 4 , is the first embodiment of the present invention, which provides an engine thermal shock test equipment, including a test box 100, which includes a box body 101, an upper box door 102 and a lower box door 103 rotatably connected to the box body 101, and an observation window 104 is installed on the upper box door 102 and the lower box door 103. The upper box door 102 and the lower box door 103 correspond to the heating chamber and the cooling chamber of the test box 100 respectively, and a cleaning mechanism 200 is installed on the lower box door 103. The cleaning mechanism 200 is located at the lower box door 101. 03, the cleaning mechanism 200 includes a cleaning component 201 disposed on the lower door 103 for removing water and defrosting the observation window 104, and a collecting component 202 is also disposed on the lower door 103 for collecting water and frost removed by the cleaning component 201. The cleaning component 201 includes a scraper 201a disposed on one side of the lower door 103, and the collecting component 202 includes a storage box 202a connected to the lower door 103, and one side of the storage box 202a is in contact with the side wall of the lower door 103; Among them, due to the principle that hot air flows upward and cold air flows downward, the upper door 102 of most test boxes 100 corresponds to the heating chamber, and the lower door 103 corresponds to the cooling chamber. The heating chamber and the cooling chamber are separated by an isolation plate with a rectangular groove corresponding to the basket, and the rectangular groove is blocked by the top and bottom of the basket. The cleaning component 201 scrapes off the water droplets or frost on the observation window 104 of the lower box door 103 through the scraper 201a, so as to prevent the water droplets or frost from affecting the field of view of the observation window 104, thereby affecting the staff's observation of the changes of the engine after it enters a colder environment from a hot environment. The cleaning component 201 adopts a flexible scraping method to reduce the wear of the scraper 201a when scraping off the water droplets or frost on the observation window 104 of the lower box door 103. When the scraper 201a moves to the bottom, the storage box 202a cooperates to drive the scraper 201a to move, so that the scraper 201a will not contact the surface of the observation window 104 of the lower box door 103 when resetting, further reducing the wear of the scraper 201a and the observation window 104 of the lower box door 103. The collecting component 202 collects the frost and water droplets removed by the cleaning component 201 through the storage box 202a. At the same time, when the cooling chamber is working, the bottom of the storage box 202a is blocked, so that the frost and water droplets are deposited inside the storage box 202a. When the cooling chamber stops working, the frost turns into water and is discharged.

[0025] The storage box 202a is made of a low-temperature resistant material, such as polypropylene, which is a plastic material with excellent chemical corrosion resistance and low-temperature resistance and can maintain stability under extreme temperatures.

[0026] Furthermore, the cleaning assembly 201 further includes a driving member 201b connected to the lower box door 103, the output end of the driving member 201b is connected to a horizontal plate 201c, the scraper 201a is installed at the bottom of the horizontal plate 201c, and the scraper 201a is inclined; The driving member 201b drives the horizontal plate 201c to move downward, and the horizontal plate 201c drives the scraper 201a to move downward, so that the scraper 201a can clean the water droplets or frost on the observation window 104 of the lower box door 103, so as to prevent the water droplets or frost from affecting the field of view of the observation window 104, thereby affecting the staff's observation of the changes after the engine enters a colder environment from a hotter environment.

[0027] Furthermore, the driving member 201b is a cylinder or an electric telescopic rod, and the driving member 201b needs to be a device that retracts into the interior when not in use. If a threaded rod or the like is used to drive the scraper 201a to move up and down, frost may also form on the threaded rod, causing movement obstruction.

[0028] Furthermore, a mounting groove 201c-1 is provided inside the horizontal plate 201c, a T-shaped plate 201c-2 and a first spring 201c-3 are provided inside the mounting groove 201c-1, the T-shaped plate 201c-2 can slide inside the mounting groove 201c-1, one end of the first spring 201c-3 is connected to the T-shaped plate 201c-2, and the other end of the first spring 201c-3 is connected to the inner wall of the mounting groove 201c-1, the T-shaped plate 201c-2 is composed of a horizontal section and a vertical section, the vertical section slides out of the mounting groove 201c-1 and is connected to the scraper 201a; Among them, the vertical section of the T-shaped plate 201c-2 can be a threaded column, and threads begin to appear on the surface of the threaded column. The threads are one section, and one end of the threaded column is rotatably connected to the horizontal section through a rotating shaft, and a corresponding threaded groove needs to be opened on the scraper 201a. The scraper 201a can be installed by passing the threaded column through the threaded groove on the scraper 201a and then twisting the threaded column so that the scraper 201a moves upward along the threads on the surface of the threaded column. Otherwise, the scraper 201a that has been severely worn can be replaced.

[0029] In this embodiment, the collection assembly 202 is only a storage box 202a, and the storage box 202a is detachably connected to the lower box door 103; In the initial state, under the action of the elastic force of the first spring 201c-3, one end of the scraper 201a is in contact with the top of the observation window 104 of the lower door 103. When the engine is driven by the basket and enters the cooling chamber from the heating chamber, the thermal shock causes a layer of frost or water droplets to form on the observation window 104 of the lower door 103. By turning on the driving member 201b, the driving member 201b drives the scraper 201a to descend through the cross plate 201c and the T-shaped plate 201c-2, so that the scraper 201a scrapes off the water droplets and frost on the observation window 104 of the lower door 103 and enters the storage box 202a for collection. When the storage box 202a is full, the storage box 202a is removed and the frost and water inside are poured to a suitable place.

[0030] In summary, compared with the manual erasing in the prior art, manpower is saved, and the lower box door 103 does not need to be opened frequently during the test, thereby reducing the impact of the external temperature on the engine test.

[0031] Example 2, reference Figure 2 to Figure 5 , which is the second embodiment of the present invention. Different from the previous embodiment, in this embodiment, a guide slope 202a-1 is provided on one side of the top of the storage box 202a, and the guide slope 202a-1 is located on the side where the storage box 202a is in contact with the lower door 103; The backflow slope is set so that the frost scraped off by the scraper 201a can flow into the storage box 202a along the backflow slope to avoid adhering to the top of the storage box 202a.

[0032] Furthermore, the cleaning assembly 201 further includes an auxiliary groove 201d provided on the T-shaped plate 201c-2, wherein a first inclined surface 201e and a second inclined surface 201f are provided inside the auxiliary groove 201d, and a convex block 201g is slidably provided inside the auxiliary groove 201d, wherein a third inclined surface 201h and a fourth inclined surface 201i are provided on the convex block 201g, wherein the third inclined surface 201h corresponds to the first inclined surface 201e, and the fourth inclined surface 201i corresponds to the second inclined surface 201f; Among them, the convex block 201g is a convex shape after rotating ninety degrees clockwise, and the upper and lower ends of the convex block 201g correspond to the side positions of the driving member 201b and the storage box 202a respectively, and the gravity of the convex block 201g is smaller than the elastic force of the first spring 201c-3.

[0033] Furthermore, the convex block 201g corresponds to the mounting groove 201c-1, and the specific setting only needs to ensure that the convex block 201g can only move up and down in the vertical direction and remain connected to the horizontal plate 201c. For example, a limit plate is connected to the upper and lower ends of the convex block 201g, and the size of the limit plate is larger than the groove of the mounting groove, so that the two limit plates are respectively used to limit the maximum position of the upper and lower movements of the convex block 201g.

[0034] The rest of the structure is the same as that of Example 1.

[0035] Since part of the frost scraped off the observation window 104 of the lower box door 103 will accumulate on the guide slope 202a-1, it takes a greater force to clean the guide slope 202a-1. When the end of the scraper 201a contacts the guide slope 202a-1 on the top of the storage box 202a, the scraper 201a moves away from the lower box door 103 under the action of the guide slope 202a-1. The scraper 201a squeezes the first spring 201c-3 through the fixed block, causing the first spring 201c-3 to contract. At this time, under the action of the elastic force of the first spring 201c-3, the contact between the scraper 201a and the guide slope 202a-1 will be closer, thereby scraping the frost accumulated on the guide slope 202a-1 into the storage box 202a. When the end of the scraper 201a contacts the guide slope 202a-1 on the top of the storage box 202a, the bottom end of the convex block 201g also contacts the top of the storage box 202a. When the end of the scraper 201a contacts the guide slope 202a-1, the contact between the third slope 201h on the convex block 201g and the fourth slope 201i of the fixing block is reduced, thereby reducing wear. When the convex block 201g contacts the top of the storage box 202a, with the assistance of the vertical groove 201c-4 and the positioning block 201c-5, the convex block 201g When the scraper 201a continues to move downward and does not contact the guide slope 202a-1, at this time, the end of the convex block 201g away from the storage box 202a passes through the top of the installation groove 201c-1, and the height of the fourth slope 201i of the convex block 201g is flush with or greater than the height of the second slope 201f of the auxiliary groove 201d, and the connection between the first slope 201e and the second slope 201f is the same as the connection between the third slope 201h and the fourth slope 201i in the vertical direction; When the driving member 201b drives the scraper 201a to rise through the cross plate 201c and the fixed block, at this time, under the elastic force of the first spring 201c-3, the fixed block drives the scraper 201a to reset, and under the action of the gravity of the convex block 201g, the convex block 201g moves downward. Since the connection between the first inclined surface 201e and the second inclined surface 201f in the auxiliary groove 201d on the fixed block moves horizontally, and the connection between the third inclined surface 201h and the fourth inclined surface 201i on the convex block 201g moves vertically, when the connection between the third inclined surface 201h and the fourth inclined surface 201i on the convex block 201g contacts the auxiliary groove 201d, it must contact the second inclined surface 201f inside the auxiliary groove 201d, that is, the fourth inclined surface 201i on the convex block 201g. The first spring 201c-3 contacts the second inclined surface 201f inside the auxiliary groove 201d. Since the elastic force of the first spring 201c-3 is greater than the gravity of the convex block 201g, that is, when the first spring 201c-3 drives the fixed block to reset, when the fourth inclined surface 201i on the convex block 201g contacts the second inclined surface 201f inside the auxiliary groove 201d, the fixed block drives the convex block 201g to rise through the second inclined surface 201f on the auxiliary groove 201d. However, due to the gravity of the convex block 201g, the first spring 201c-3 cannot drive the scraper 201a back to the position where the scraper 201a is in contact with the observation window 104 of the lower box door 103 through the fixed block, so that the scraper 201a will not contact the surface of the observation window 104 of the lower box door 103 when it rises, thereby avoiding unnecessary wear. When the cross plate 201c moves to the top, the top of the convex block 201g contacts the driving member 201b, causing the convex block 201g to descend, and the convex block 201g drives the second inclined surface 201f on the auxiliary groove 201d through the fourth inclined surface 201i to make the fixed block move away from the lower box door 103. When the fourth inclined surface 201i is misaligned with the second inclined surface 201f, the second inclined surface 201f no longer supports the convex block 201g. Under the action of the convex block 201g's own gravity, the convex block 201g returns to its initial position. At this time, the convex block 201g no longer applies an additional force to the first spring 201c-3 through the fixed block. Under the elastic force of the first spring 201c-3, the fixed block drives the scraper 201a to fit the top of the observation window 104 of the lower box door 103.

[0036] In summary, based on the first embodiment, the second embodiment further improves the cleaning component 201, not only further adding the cleaning of the frost accumulated on the edge of the connection between the storage box 202a and the lower door 103 to prevent the frost accumulation from blocking the field of view of the observation window 104 of the lower door 103, but also ensuring that the scraper 201a will not contact the observation window 104 of the lower door 103 when resetting, causing unnecessary wear.

[0037] Example 3, reference Figure 2 to Figure 6 , which is the third embodiment of the present invention. Different from the previous embodiment, in this embodiment, the bottom surface of the storage box 202a is an inclined surface, which divides the bottom of the storage box 202a into a high end and a low end. The bottom of the storage box 202a is provided with a drainage port 202a-2, which is located at the low end of the storage box 202a; When the temperature of the cooling chamber returns to normal, by setting the bottom of the storage box 202a as an inclined surface and utilizing the height difference between the high and low ends, when the temperature of the cooling chamber returns to normal, the frost turns into water and gathers at the drain port 202a-2.

[0038] Furthermore, the collecting assembly 202 includes a hollow tube 202b detachably connected to the drain outlet 202a-2, an annular block 202c is fixedly arranged inside the hollow tube 202b, a second spring 202d is connected to the annular block 202c, a sealing plug 202e is connected to the end of the second spring 202d away from the annular block 202c, the sealing plug 202e matches the drain outlet 202a-2, and the installation method of the hollow tube 202b can be threaded installation. When used for a long time, when the elastic force of the second spring 202d is low, the hollow tube 202b can be removed and the second spring 202d can be replaced.

[0039] Furthermore, the sealing plug 202e is made of a low-temperature resistant material, which is polytetrafluoroethylene (PTFE). PTFE is a material with excellent chemical corrosion resistance and low-temperature resistance. It can maintain stability at extreme temperatures and can be used in applications that require high-temperature resistance, low-temperature resistance and chemical stability.

[0040] Furthermore, the collection assembly 202 further includes two L-shaped plates 202f disposed at the bottom of the lower box door 103, a slide groove is formed between the two L-shaped plates 202f, a storage box 202g is slidably disposed inside the slide groove, and the storage box 202g is located at the bottom of the hollow tube 202b; The storage box 202g is provided with a handle, and the storage box 202g and the two L-shaped plates 202f are connected in a drawer-type manner. When the storage box 202g is full, the storage box 202g can be removed and the water inside it can be drained. The material of the storage box 202g only needs to have corrosion resistance and does not need to have heat preservation function.

[0041] Different from the first embodiment, in this embodiment, the storage box 202a and the lower box door 103 are welded, ensuring that there is no gap between the storage box 202a and the lower box door 103, so that when the scraper 201a scrapes off frost and water droplets, water droplets will not enter the gap and affect the use of the device. In addition, in the initial state, under the action of the elastic force of the second spring 202d, the sealing plug 202e blocks the drain outlet 202a-2, and the rest of the structure is the same as that of Embodiment 2.

[0042] When the engine is placed inside the cooling chamber and the cooling chamber is opened, due to the principle of thermal expansion and contraction, the sealing plug 202e and the drain port 202a-2 will fit more tightly. When the scraper 201a scrapes frost and water droplets into the storage box 202a, they will accumulate at the drain port 202a-2 of the storage box 202a along the inclined surface at the bottom of the storage box 202a. Due to the low temperature of the cooling chamber (the temperature of the cooling chamber of the hot and cold shock test chamber 100 is generally between -40°C and -150°C), a small amount of water droplets will also quickly condense into ice. The presence of ice will further block the drain port 202a-2, thereby increasing the sealing effect of the cooling chamber. The presence of ice means that when one engine is tested and replaced with another engine, the lower box door 103 needs to be opened because the engine that has completed the test needs to be taken out. At this time, due to the external temperature, part of the ice on the top of the storage box 202a will melt and will not affect the sealing plug 202e. When the staff gets off work and the cooling chamber is closed, the temperature in the cooling chamber slowly returns to normal, and the ice inside the storage box 202a slowly melts. The melted ice turns into water and exerts a pushing force on the sealing plug 202e, and the cooling chamber no longer exerts a contraction force on the sealing plug 202e through the low temperature. At this time, the sealing plug 202e will drop and squeeze the second spring 202d, causing the second spring 202d to contract, so that the sealing plug 202e will not block the drain port 202a-2, so that the water inside the storage box 202a can flow out from the gap between the sealing plug 202e and the drain port 202a-2, and flow into the storage box 202g through the hollow tube 202b for collection. When the water inside the storage box 202a is completely drained, the water no longer exerts gravity on the sealing plug 202e, and under the action of the elastic force of the second spring 202d, the sealing plug 202e returns to its original position to block the drain port 202a-2. When the cooling chamber is opened, the storage box 202g can be removed and the water inside the storage box 202g can be poured to a suitable place. During daytime work, there is no need to consider the problem of the collection box. There is a long time enough for the staff to pour out the water flow inside the storage box 202g and reinsert the storage box 202g after pouring into the slide groove formed by the two L-shaped plates 202f.

[0043] In summary, a component suitable for collecting frost and water scraped off the scraper 201a is proposed. The principle of thermal expansion and contraction of the spring is used to achieve a tight seal of the cooling chamber, and the collected frost and water can be automatically discharged when the device is not in use, which is convenient for the staff to use water resources and will not be affected by the movement of the test box 100.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An engine thermal shock test equipment, characterized in that: include, A test box (100) comprises a box body (101), an upper box door (102) and a lower box door (103) rotatably connected to the box body (101), wherein both the upper box door (102) and the lower box door (103) are provided with an observation window (104); The upper box door (102) and the lower box door (103) correspond to the heating chamber and the cooling chamber of the test box (100) respectively; A cleaning mechanism (200) comprising a cleaning component (201) disposed on the lower box door (103) and used for removing water and defrosting the observation window (104); the lower box door (103) is also provided with a collecting component (202) for collecting water and frost removed by the cleaning component (201); The cleaning component (201) comprises a scraper (201a) provided on one side of the lower box door (103); The collection assembly (202) comprises a storage box (202a) connected to the lower box door (103), and one side of the storage box (202a) is in contact with the side wall of the lower box door (103).

2. The engine thermal shock test equipment according to claim 1, characterized in that: The cleaning component (201) further comprises a driving member (201b) connected to the lower box door (103), and an output end of the driving member (201b) is connected to a transverse plate (201c); The scraper (201a) is installed at the bottom of the horizontal plate (201c), and the scraper (201a) is arranged at an angle.

3. The engine thermal shock test equipment according to claim 2, characterized in that: The driving member (201b) is a cylinder or an electric telescopic rod.

4. The engine thermal shock test equipment according to claim 3, characterized in that: A mounting groove (201c-1) is provided inside the transverse plate (201c), a T-shaped plate (201c-2) and a first spring (201c-3) are provided inside the mounting groove (201c-1), one end of the first spring (201c-3) is connected to the T-shaped plate (201c-2), and the other end of the first spring (201c-3) is connected to the inner wall of the mounting groove (201c-1); The T-shaped plate (201c-2) consists of a horizontal section and a vertical section, and the vertical section of the T-shaped plate (201c-2) slides out of the installation groove (201c-1) and is connected to the scraper (201a).

5. The engine thermal shock test equipment according to claim 4, characterized in that: A guide slope (202a-1) is provided on one side of the top of the storage box (202a), the guide slope (202a-1) is located on the side of the storage box (202a) that is in contact with the lower door (103), the bottom surface of the storage box (202a) is a slope, the slope divides the bottom of the storage box (202a) into a high end and a low end, and a drainage outlet (202a-2) is provided at the bottom of the storage box (202a), the drainage outlet (202a-2) is located at the low end of the storage box (202a).

6. The engine thermal shock test equipment according to claim 5, characterized in that: The cleaning component (201) further comprises an auxiliary groove (201d) provided on the T-shaped plate (201c-2), wherein a first inclined surface (201e) and a second inclined surface (201f) are provided inside the auxiliary groove (201d), and a convex block (201g) is also slidably provided inside the auxiliary groove (201d), and a third inclined surface (201h) and a fourth inclined surface (201i) are provided on the convex block (201g); The third inclined surface (201h) corresponds to the first inclined surface (201e), and the fourth inclined surface (201i) corresponds to the second inclined surface (201f).

7. The engine thermal shock test equipment according to claim 6, characterized in that: The convex block (201g) corresponds to the installation groove (201c-1).

8. The engine thermal shock test equipment according to claim 7, characterized in that: The collecting assembly (202) further comprises a hollow tube (202b) detachably connected to the drain port (202a-2); an annular block (202c) is fixedly arranged inside the hollow tube (202b); a second spring (202d) is connected to the annular block (202c); and a sealing plug (202e) is connected to one end of the second spring (202d) away from the annular block (202c); The sealing plug (202e) matches the drain port (202a-2).

9. The engine thermal shock test equipment according to claim 8, characterized in that: The sealing plug (202e) is made of low-temperature resistant material.

10. The engine thermal shock test equipment according to claim 8 or 9, characterized in that: The collecting assembly (202) further comprises two L-shaped plates (202f) arranged at the bottom of the lower box door (103), a slide groove is formed between the two L-shaped plates (202f), and a storage box (202g) is slidably arranged inside the slide groove; The storage box (202g) is located at the bottom of the hollow tube (202b).

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