A circulating cooling pool for spring quenching

Abstract

The present invention discloses a circulating cooling pool for spring quenching, comprising: a base and a filter tank arranged on the base, a tank box is arranged on the top of the filter tank for rapid cooling of spring quenching; and electric slide rails are arranged on the inner wall of the tank box and are relatively arranged, and an electric slider adapted thereto is installed inside the electric slide rail; and also comprises a mounting frame assembly arranged between the electric sliders, the mounting frame assembly comprises fixed frames respectively fixed on the electric sliders, and a multi-stage lifting assembly arranged between the fixed frames for plug-in limiting of a plurality of springs. The present invention realizes the up and down movement of the spring under the limiting action of the telescopic adjustment rod through the setting of the mounting frame assembly and the action of the multi-stage lifting assembly. On the one hand, the cooling water can be stirred, and on the other hand, the cooling range of the spring can be increased and its cooling quality can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of spring quenching, in particular to a circulating cooling pool for spring quenching. Background Art

[0002] Quenching and tempering is a common heat treatment process for steel. The heat treatment of general springs is as follows: 1. Springs or elastic elements that are cold-formed from reinforced wires and strips do not require high-temperature quenching, only stress relief annealing is required. 2. Springs wound from hot-formed or annealed materials need to be quenched and tempered or isothermally quenched. When the spring is made, the spring steel with the original structure is first placed in a heating furnace for heating. After the spring steel is heated in the furnace for a certain period of time, the internal structure of the spring steel will undergo a certain deformation, forming uniform and fine austenite grains. At this time, the spring steel is taken out for cooling and forming, so that fine martensite structure is formed inside the spring, thereby obtaining a spring with better mechanical properties. In the process of cooling and forming the heated spring, the red-hot spring is continuously put into the cooling pool for oil cooling and then taken out. The existing circulating cooling pool for spring quenching also has the following defects: the shape of the spring is not easy to be fixed and limited, and it is in a piled state when poured into the cooling pool, and the heat between them is too large, and the cooling efficiency is extremely low. Summary of the invention

[0003] The object of the present invention is to provide a circulating cooling pool for spring quenching. Through the setting of the mounting frame assembly and the action of the multi-stage lifting assembly, the spring can be moved up and down under the limiting action of the telescopic adjustment rod. On the one hand, the cooling water can be stirred, and on the other hand, the cooling range of the spring can be increased to improve its cooling quality.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circulating cooling pool for spring quenching, comprising: a base and a filter tank arranged on the base, a pool box is arranged on the top of the filter tank for rapid cooling of spring quenching; and electric slide rails are arranged on the inner wall of the pool box and are relatively arranged, and an electric slider compatible with it is installed inside the electric slide rail; it also includes a mounting frame assembly arranged between the electric sliders, the mounting frame assembly includes fixing frames respectively fixed on the electric sliders, and a multi-stage lifting assembly arranged between the fixing frames, which is used for plug-in limiting of a plurality of springs.

[0005] Preferably, the multi-stage lifting assembly includes a first lifting frame arranged on the side wall of the fixed frame and can slide up and down, and a second mounting plate is horizontally installed between the first lifting frames; a second lifting frame arranged on the side wall of the first lifting frame and can slide up and down, and the first mounting plate is fixedly installed between the second lifting frames; and a third lifting frame arranged on the side wall of the second lifting frame and can slide up and down, and a third mounting plate is fixedly installed between the third lifting frames, the third mounting plate and the first mounting plate are respectively provided with a plurality of grooves, limit plates are fixedly installed on the corresponding grooves, and telescopic adjustment rods are respectively arranged on the second mounting plate and the first mounting plate, the telescopic adjustment rods pass through the limit plates installed on the grooves at corresponding positions and extend to the top of the third mounting plate; and also includes a pull rope mechanism arranged on the side wall of the fixed frame, for driving the multi-stage lifting assembly to operate.

[0006] Preferably, the rope-pulling mechanism includes rotatable transmission wheels respectively mounted on the first lifting frame, the fixed frame and the second lifting frame, and a fixed block fixed on the third lifting frame; it also includes a rotatable driving disk arranged in the middle of the fixed frame, and a motor box assembly fixed on the side wall of the fixed frame, which is used to drive the driving disk to rotate, and a transmission belt connected between the multiple transmission wheels, one end of the transmission belt is fixedly connected to the fixed block, and the other end of the transmission belt is fixedly connected to one side of the driving disk; and a first limiting assembly, a second limiting assembly and a third limiting assembly respectively arranged between the fixed frame and the first lifting frame, the first lifting frame and the second lifting frame, and the second lifting frame and the third lifting frame, which are used to trigger multi-stage transmission.

[0007] Preferably, the first limiting assembly includes a limiting block fixed on the side wall of the fixing frame and a limiting bar fixed on the side wall of the first lifting frame. When the limiting bar rises, it may interfere with the limiting block. The structure of the first limiting assembly is the same as that of the second limiting assembly and the third limiting assembly.

[0008] Preferably, a cooling circulation component is also provided on the pool body box for the circulation of cooling liquid, the cooling circulation component includes a cooling box arranged on the side wall of the pool body box for holding cold water, and an annular pipe arranged inside the cooling box, one end of the annular pipe is connected to a return pipe, the return pipe extends to the interior of the filter tank away from one end of the annular pipe and is fixedly installed with a water pump, and the other end of the annular pipe extends to the interior of the pool body box and is fixedly installed with a water spray plate.

[0009] Preferably, a filter assembly is provided inside the filter tank for filtering the coolant during circulation, and the filter assembly includes a filter seat fixed on the inner wall of the filter tank, a filter plate is provided in the middle of the filter seat, and grooves are formed between the two sides of the filter seat and the inner wall of the filter tank.

[0010] Preferably, a scraper assembly is provided on the filter seat for cleaning and unblocking impurities on the filter plate; the scraper assembly includes two scrapers installed on the top of the filter plate and can slide relative to each other, a compression spring is connected between the opposite back surfaces of the two scrapers and the inner wall of the filter tank, and two fixed pulleys are arranged opposite to each other on the filter seat, a pull rope is wound around the fixed pulley, one end of the pull rope is fixed to the side wall of the scraper, and the other end of the pull rope is fixedly connected to the bottom of the motor box assembly.

[0011] Preferably, a receiving frame is fixedly mounted on the lower part of the fixing frame for receiving the cooled spring, and a through slot is formed on the receiving frame.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention, through the setting of the mounting frame assembly and the action of the multi-stage lifting assembly, can realize the step-by-step upward or downward movement of the third lifting frame, the second lifting frame and the first lifting frame, and further make the limit plate move up and down relative to the telescopic adjustment rod, thereby realizing the up and down movement of the spring under the limiting action of the telescopic adjustment rod. On the one hand, the cooling water can be stirred, and on the other hand, the cooling range of the spring can be increased to improve its cooling quality.

[0014] 2. The present invention further arranges the multi-stage lifting assembly structure to insert springs with different numbers of turns into different positions of the telescopic adjustment rod. The limit plate arranged on the first mounting plate can be used to install longer springs, and the limit plate arranged on the third mounting plate is used to hold shorter springs, so as to facilitate cooling of springs of different models and sizes.

[0015] 3. The present invention provides a cooling circulation component and an annular tube arranged inside the cooling box. By driving the water pump, the coolant is pumped into the annular tube where the cooling box is located. The loop setting of the annular tube can increase the cooling time of the coolant in the annular tube. When the water spray plate where the annular tube is located flows back to the inside of the pool box again, the circulation of the coolant can be realized. The cooling effect of the cooling box and the annular tube can further improve the cooling efficiency of the coolant.

[0016] 4. In the present invention, due to the filter assembly arranged inside the filter tank, when the electric slider inside the electric slide rail drives the mounting frame assembly to move up and down as a whole, as shown in the figure, due to the pulling force of the pull rope, the two scrapers can be further driven to move on the filter plate and compress the compression springs on both sides. The scrapers can scrape the surface of the filter plate back and forth to clean and dredge the impurities on the filter plate.

[0017] 5. As other embodiments of the present invention, when the telescopic adjustment rod is in a retracted state, the third lifting frame, the second lifting frame and the first lifting frame move upward step by step, so that the limit plate further moves up and down relative to the telescopic adjustment rod, thereby realizing the upward movement of the spring under the limiting action of the telescopic adjustment rod, and finally the spring is lifted and separated from the telescopic adjustment rod, and falls on the material receiving frame for receiving, realizing the automatic unloading process, thereby further improving the work efficiency, and the graded lifting can realize the classified collection of different types of springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of a three-dimensional structure disassembled from a first viewing angle of the present invention;

[0020] Figure 3 for Figure 2 A schematic diagram of the second perspective structure;

[0021] Figure 4 for Figure 2 A schematic diagram of the third perspective structure;

[0022] Figure 5 for Figure 2 A schematic diagram of the front view structure of

[0023] Figure 6 It is a schematic diagram of a partially disassembled three-dimensional structure of the mounting frame assembly of the present invention;

[0024] Figure 7 It is a schematic diagram of a partially disassembled three-dimensional structure of the tank box of the present invention;

[0025] Figure 8 It is a front view structural schematic diagram of the multi-stage lifting assembly of the present invention;

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the annular tube of the present invention.

[0027] In the figure: 1. pool box; 2. base; 3. filter tank; 4. cooling box; 5. return pipe; 6. electric slide rail; 7. filter seat; 8. fixed pulley; 9. filter plate; 10. pull rope; 11. scraper; 12. compression spring; 13. electric slider; 14. material receiving frame; 15. first lifting frame; 16. fixed frame; 17. second lifting frame; 18. motor box assembly; 19. first mounting plate; 20. second mounting plate; 21. telescopic adjustment rod; 22. groove; 23. limit plate; 24. transmission wheel; 25. transmission belt; 26. third lifting frame; 27. drive disc; 28. water spray plate; 29. ​​annular pipe; 30. limit strip; 31. limit block; 32. fixed block; 33. third mounting plate. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. The following describes various embodiments of the present invention in detail in conjunction with the drawings.

[0029] Embodiment 1:

[0030] See also Figures 1 to 9 The present invention provides a technical solution: a circulating cooling pool for spring quenching, comprising: a base 2 and a filter tank 3 arranged on the base 2, a tank box 1 is arranged on the top of the filter tank 3 for rapid cooling of spring quenching; and electric slide rails 6 are arranged on the inner wall of the tank box 1 and are relatively arranged, and an electric slider 13 adapted thereto is installed inside the electric slide rail 6; it also includes a mounting frame assembly arranged between the electric sliders 13, the mounting frame assembly includes fixing frames 16 respectively fixed on the electric sliders 13, and a multi-stage lifting assembly arranged between the fixing frames 16 for plug-in limiting of a plurality of springs.

[0031] In this embodiment, through the structural setting of the multi-stage lifting assembly, the telescopic adjustment rod 21 is in an extended state during this process. Figure 6 and 8 As shown, when the multi-stage lifting assembly is in operation, the third lifting frame 26, the second lifting frame 17 and the first lifting frame 15 can be moved upward or downward step by step, and the limiting plate 23 can further move up and down relative to the telescopic adjustment rod 21, thereby realizing the up and down movement of the spring under the limiting action of the telescopic adjustment rod 21. On the one hand, the cooling water can be stirred, and on the other hand, the cooling range of the spring can be increased to improve its cooling quality.

[0032] Furthermore, the multi-stage lifting assembly includes a first lifting frame 15 which is arranged on the side wall of the fixed frame 16 and can slide up and down, and a second mounting plate 20 is horizontally installed between the first lifting frames 15; a second lifting frame 17 which is arranged on the side wall of the first lifting frame 15 and can slide up and down, and a first mounting plate 19 is fixedly installed between the second lifting frames 17; and a third lifting frame 26 which is arranged on the side wall of the second lifting frame 17 and can slide up and down, and a third mounting plate 33 is fixedly installed between the third lifting frames 26, and a plurality of grooves 22 are respectively opened on the third mounting plate 33 and the first mounting plate 19, and limit plates 23 are fixedly installed on the corresponding grooves 22, and telescopic adjustment rods 21 are respectively arranged on the second mounting plate 20 and the first mounting plate 19, and the telescopic adjustment rod 21 passes through the limit plates 23 installed on the corresponding position grooves 22 and extends to the top of the third mounting plate 33; it also includes a pull rope mechanism arranged on the side wall of the fixed frame 16, which is used to drive the multi-stage lifting assembly to operate.

[0033] like Figure 6 As shown, springs with different numbers of turns are inserted into different positions of the telescopic adjustment rod 21. The limit plate 23 arranged on the first mounting plate 19 can be used to install longer springs, and the limit plate 23 arranged on the third mounting plate 33 is used to hold shorter springs, so as to facilitate cooling of springs of different models and sizes.

[0034] Furthermore, the rope pulling mechanism includes a rotatable transmission wheel 24 respectively mounted on the first lifting frame 15, the fixed frame 16 and the second lifting frame 17, and a fixed block 32 fixed on the third lifting frame 26; it also includes a rotatable driving disk 27 arranged in the middle of the fixed frame 16, and a motor box assembly 18 fixed on the side wall of the fixed frame 16, which is used to drive the driving disk 27 to rotate, and a transmission belt 25 connected between multiple transmission wheels 24, one end of the transmission belt 25 is fixedly connected to the fixed block 32, and the other end of the transmission belt 25 is fixedly connected to one side of the driving disk 27; and a first limiting assembly, a second limiting assembly and a third limiting assembly respectively arranged between the fixed frame 16 and the first lifting frame 15, the first lifting frame 15 and the second lifting frame 17, and the second lifting frame 17 and the third lifting frame 26, which are used to trigger multi-stage transmission.

[0035] The motor in the motor box assembly 18 where the driving fixed frame 16 is located is working, and the motor drives the driving disk 27 to rotate counterclockwise, so that the transmission belts 25 on both sides are in an unwinding state. The tension of the transmission belts 25 is lost, and the third lifting frame 26, the second lifting frame 17 and the first lifting frame 15 move downward under the action of their own gravity. Similarly, when the driving disk 27 is driven to rotate clockwise, the transmission belts 25 on both sides are in a stretched state. Under the tension of the transmission belts 25, the first limiting assembly, the second limiting assembly and the third limiting assembly are cooperated to drive the third lifting frame 26, the second lifting frame 17 and the first lifting frame 15 at the corresponding positions to move upward step by step.

[0036] Furthermore, the first limiting assembly includes a limiting block 31 fixed on the side wall of the fixing frame 16 and a limiting bar 30 fixed on the side wall of the first lifting frame 15. When the limiting bar 30 rises, it may interfere with the limiting block 31. The structure of the first limiting assembly is the same as that of the second limiting assembly and the third limiting assembly.

[0037] The first limit assembly, the second limit assembly and the third limit assembly are arranged in coordination, namely, the limit block 31 fixed on the side wall of the fixed frame 16 and the limit bar 30 fixed on the side wall of the first lifting frame 15. When the limit bar 30 rises, it can interfere with the limit block 31, so as to trigger the third lifting frame 26, the second lifting frame 17 and the first lifting frame 15 to move upward step by step.

[0038] Embodiment 2:

[0039] As another embodiment of the present invention, a cooling circulation component is also provided on the pool body box 1 for circulating the cooling liquid. The cooling circulation component includes a cooling box 4 arranged on the side wall of the pool body box 1 for holding cold water, and an annular pipe 29 arranged inside the cooling box 4. One end of the annular pipe 29 is connected to a return pipe 5. The return pipe 5 extends from one end of the annular pipe 29 to the inside of the filter tank 3 and is fixedly installed with a water pump. The other end of the annular pipe 29 extends to the inside of the pool body box 1 and is fixedly installed with a water spray plate 28.

[0040] like Figure 1 , 7As shown in Figure 9, a cooling circulation component is set up, and an annular pipe 29 is set inside the cooling box 4. Since one end of the annular pipe 29 is connected to a return pipe 5, and the return pipe 5 extends to the inside of the filter tank 3 away from one end of the annular pipe 29 and is fixedly installed with a water pump, the other end of the annular pipe 29 extends to the inside of the pool box 1 and is fixedly installed with a spray plate 28. Since it is used for the circulation of coolant, the cooling circulation component includes a cooling box 4 set on the side wall of the pool box 1. When the spring enters the pool box 1 for cooling, the water pump is driven to work so that the coolant is drawn into the annular pipe 29 where the cooling box 4 is located. Through the loop setting of the annular pipe 29, the cooling time of the coolant in the annular pipe 29 can be increased. When the spray plate 28 where the annular pipe 29 is located flows back to the inside of the pool box 1 again, the circulation of the coolant can be realized. In combination with the cooling effect of the cooling box 4 and the annular pipe 29, the cooling efficiency of the coolant can be further improved.

[0041] Furthermore, a filter assembly is provided inside the filter tank 3 for filtering the coolant during circulation. The filter assembly includes a filter seat 7 fixed on the inner wall of the filter tank 3, a filter plate 9 is provided in the middle of the filter seat 7, and grooves are formed between the two sides of the filter seat 7 and the inner wall of the filter tank 3.

[0042] The filter plate 9 arranged in the middle of the filter seat 7 can remove impurities in the coolant, which is convenient for recycling the coolant. At the same time, grooves are formed between the two sides of the filter seat 7 and the inner wall of the filter tank 3 to collect the scraped impurities.

[0043] Furthermore, a scraper assembly is provided on the filter seat 7 for cleaning and unblocking impurities on the filter plate 9; the scraper assembly includes two scrapers 11 installed on the top of the filter plate 9 and can slide relative to each other, a compression spring 12 is connected between the opposite back surfaces of the two scrapers 11 and the inner wall of the filter tank 3, and two fixed pulleys 8 are arranged opposite to each other on the filter seat 7, a pull rope 10 is wound around the fixed pulley 8, one end of the pull rope 10 is fixed to the side wall of the scraper 11, and the other end of the pull rope 10 is fixedly connected to the bottom of the third mounting plate 33.

[0044] Through the filter assembly arranged inside the filter tank 3, when the electric slider 13 inside the electric slide rail 6 drives the mounting frame assembly to move up and down as a whole, Figure 6 Due to the pulling force of the pull rope 10, the two scrapers 11 can be further driven to move on the filter plate 9 and compress the compression springs 12 on both sides. The scrapers 11 scrape the surface of the filter plate 9 back and forth to clean and dredge the impurities on the filter plate 9.

[0045] Embodiment 3:

[0046] As another embodiment of the present invention, a receiving frame 14 is fixedly mounted on the lower part of the fixing frame 16 for receiving the cooled spring, and a through groove is formed on the receiving frame 14 .

[0047] A material receiving frame 14 is also fixedly installed at the lower part of the fixing frame 16, and a through slot is opened on the material receiving frame 14. When the spring cools down, the electric slider 13 inside the electric slide rail 6 is driven again, so that the mounting frame assembly moves upward as a whole and is separated from the coolant in the cell box 1. Figure 6 and 8 As shown, during this process, the telescopic adjustment rod 21 is in a retracted state, and the motor in the motor box assembly 18 where the fixed frame 16 is located is driven again to work, so that when the driving disk 27 rotates clockwise, the transmission belts 25 on both sides are in a stretched state, thereby driving the third lifting frame 26, the second lifting frame 17 and the first lifting frame 15 at the corresponding positions to move upward step by step. Through the upward step-by-step movement of the third lifting frame 26, the second lifting frame 17 and the first lifting frame 15, the limiting plate 23 is further moved up and down relative to the telescopic adjustment rod 21, thereby realizing the upward movement of the spring under the limiting action of the telescopic adjustment rod 21, and finally making the spring lifted and separated from the telescopic adjustment rod 21, and falling on the receiving frame 14 for receiving, realizing the automatic unloading process, thereby further improving the work efficiency, and graded lifting can realize the classified collection of different types of springs.

[0048] Working principle: This is a circulating cooling pool for spring quenching. When used, Figure 6 As shown, springs with different numbers of turns are plugged into different positions of the telescopic adjustment rod 21. The limit plate 23 provided on the first mounting plate 19 can be used to install a longer spring, and the limit plate 23 provided on the third mounting plate 33 is used to accommodate a shorter spring. When the springs are plugged in, as shown in FIG. Figure 1 and 6 As shown, due to the electric slide rail 6 and the electric slider 13 arranged inside, the mounting frame assembly can be driven to move downward as a whole and be immersed in the coolant inside the tank box 1 to achieve the cooling process;

[0049] By setting the multi-stage lifting assembly, the telescopic adjustment rod 21 is in an extended state during this process. Figure 6 and 8As shown, the motor in the motor box assembly 18 where the fixed frame 16 is driven is working, and the motor drives the driving disk 27 to rotate counterclockwise, so that the transmission belts 25 on both sides are in an unwinding state, and the tension of the transmission belts 25 is lost. The third lifting frame 26, the second lifting frame 17 and the first lifting frame 15 move downward under the action of their own gravity. Similarly, when the driving disk 27 is driven to rotate clockwise, the transmission belts 25 on both sides are in a stretched state. Under the tension of the transmission belts 25, the first limiting assembly, the second limiting assembly and the third limiting assembly, that is, the limiting block 31 fixed on the side wall of the fixed frame 16 and the limiting block 31 fixed on the side wall of the fixed frame 16, are arranged in cooperation. The limiting bar 30 on the side wall of the first lifting frame 15 may conflict with the limiting block 31 when the limiting bar 30 rises, so as to drive the third lifting frame 26, the second lifting frame 17 and the first lifting frame 15 at the corresponding positions to move upward step by step. In this embodiment, the third lifting frame 26, the second lifting frame 17 and the first lifting frame 15 can move upward or downward step by step through the back and forth rotation of the driving disk 27, and further make the limiting plate 23 move up and down relative to the telescopic adjustment rod 21, so as to realize the up and down movement of the spring under the limiting action of the telescopic adjustment rod 21. On the one hand, the cooling water can be stirred, and on the other hand, the cooling range of the spring can be increased.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. There are many ways of detachable installation, for example, it can be through the method of plug-in and snap-on matching, and for example, through the method of bolt connection, etc.

[0051] The above clearly and completely describes the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0052] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A circulating cooling pool for spring quenching, characterized in that: include: A base (2) and a filter tank (3) arranged on the base (2), wherein a tank box (1) is arranged on the top of the filter tank (3) for rapid cooling of spring quenching; and an electric slide rail (6) provided on the inner wall of the tank box (1) and arranged opposite to each other, wherein an electric slide block (13) adapted thereto is installed inside the electric slide rail (6); It also includes a mounting frame assembly arranged between the electric sliders (13), the mounting frame assembly including fixing frames (16) respectively fixed on the electric sliders (13), and a multi-stage lifting assembly arranged between the fixing frames (16) for inserting and limiting a plurality of springs; The multi-stage lifting assembly comprises a first lifting frame (15) which is arranged on the side wall of the fixing frame (16) and can slide up and down, and a second mounting plate (20) is transversely mounted between the first lifting frames (15); A second lifting frame (17) is arranged on the side wall of the first lifting frame (15) and can slide up and down, and a first mounting plate (19) is fixedly mounted between the second lifting frames (17); and a third lifting frame (26) arranged on the side wall of the second lifting frame (17) and capable of sliding up and down, a third mounting plate (33) being fixedly installed between the third lifting frames (26), a plurality of grooves (22) being respectively provided on the third mounting plate (33) and the first mounting plate (19), a limit plate (23) being fixedly installed on the corresponding grooves (22), and a telescopic adjustment rod (21) being respectively arranged on the second mounting plate (20) and the first mounting plate (19), the telescopic adjustment rod (21) passing through the limit plate (23) installed on the groove (22) at the corresponding position and extending to the top of the third mounting plate (33); It also includes a pull rope mechanism arranged on the side wall of the fixing frame (16) and used for driving the multi-stage lifting assembly to operate.

2. A circulating cooling pool for spring quenching according to claim 1, characterized in that: The rope pulling mechanism comprises a rotatable transmission wheel (24) respectively mounted on the first lifting frame (15), the fixed frame (16) and the second lifting frame (17), and a fixed block (32) fixed on the third lifting frame (26); It also includes a drive disk (27) rotatably arranged in the middle of the fixed frame (16), and a motor box assembly (18) fixed to the side wall of the fixed frame (16), used to drive the drive disk (27) to rotate, and a transmission belt (25) connected between the plurality of transmission wheels (24), one end of the transmission belt (25) being fixedly connected to the fixed block (32), and the other end of the transmission belt (25) being fixedly connected to a side edge of the drive disk (27); And a first limit assembly, a second limit assembly and a third limit assembly respectively arranged between the fixing frame (16) and the first lifting frame (15), the first lifting frame (15) and the second lifting frame (17), and the second lifting frame (17) and the third lifting frame (26), for triggering multi-stage transmission.

3. A circulating cooling pool for spring quenching according to claim 2, characterized in that: The first limiting assembly comprises a limiting block (31) fixed on the side wall of the fixing frame (16) and a limiting bar (30) fixed on the side wall of the first lifting frame (15); when the limiting bar (30) rises, it can interfere with the limiting block (31); the structure of the first limiting assembly is the same as that of the second limiting assembly and the third limiting assembly.

4. A circulating cooling pool for spring quenching according to claim 1, characterized in that: The tank body box (1) is also provided with a cooling circulation assembly for circulating a cooling liquid, the cooling circulation assembly comprising a cooling box (4) arranged on the side wall of the tank body box (1) for containing cold water, and an annular pipe (29) arranged inside the cooling box (4), one end of the annular pipe (29) being connected to a return pipe (5), one end of the return pipe (5) away from the annular pipe (29) extending to the inside of the filter tank (3) and having a water pump fixedly installed thereon, and the other end of the annular pipe (29) extending to the inside of the tank body box (1) and having a water spray plate (28) fixedly installed thereon.

5. A circulating cooling pool for spring quenching according to claim 2, characterized in that: A filter assembly is arranged inside the filter tank (3) for filtering the coolant during circulation, the filter assembly comprising a filter seat (7) fixed on the inner wall of the filter tank (3), a filter plate (9) being arranged in the middle of the filter seat (7), and grooves are formed between the two sides of the filter seat (7) and the inner wall of the filter tank (3).

6. A circulating cooling pool for spring quenching according to claim 5, characterized in that: The filter seat (7) is provided with a scraper assembly for cleaning and clearing impurities on the filter plate (9); The scraper assembly comprises two scrapers (11) mounted on the top of the filter plate (9) so as to slide relative to each other, a compression spring (12) being connected between the opposite back surfaces of the two scrapers (11) and the inner wall of the filter tank (3), and two fixed pulleys (8) arranged opposite to each other on the filter seat (7), a pull rope (10) being wound around the fixed pulley (8), one end of the pull rope (10) being fixed to the side wall of the scraper (11), and the other end of the pull rope (10) being fixedly connected to the bottom of the motor box assembly (18).

7. A circulating cooling pool for spring quenching according to claim 1, characterized in that: A material receiving frame (14) is also fixedly mounted on the lower part of the fixing frame (16) for receiving the cooled spring, and a through slot is formed on the material receiving frame (14).

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