A wind turbine blade mold locking device that is easy to disassemble and assemble and a method of using the same

Abstract

The present invention discloses a wind turbine blade mold locking device that is easy to disassemble and assemble and a method of using the same, belonging to the technical field of wind turbine blade processing. The present invention comprises an upper fixing plate and a lower fixing plate that are respectively fixedly installed on the sides of the upper mold and the lower mold, and the upper fixing plate and the lower fixing plate are both provided with long screw holes for screw fixing, and the upper fixing plate and the lower fixing plate are also fixedly installed with support blocks, and the upper fixing plate and the lower fixing plate are respectively fixedly connected with a first locking seat and a second locking seat through the support blocks; a gas delivery component is arranged between the push block and the partition plate to realize gas delivery during locking; a locking component is installed on the inner wall of the second locking seat to realize the limit locking of the push block through temperature changes. The wind turbine blade mold locking device that is easy to disassemble and assemble and a method of using the same can be easily disassembled and assembled and locked twice, so as to realize stable locking of the mold, and the mold can be sealed during the locking process to ensure the locking effect.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade processing, and in particular to a wind turbine blade mold locking device which is easy to assemble and disassemble and a use method thereof. Background Art

[0002] During the production and processing of wind turbine blades, molds are needed to shape the blades. During the mold closing process, in order to ensure the sealing and stability of the mold, a locking device is needed to lock the movable mold and the fixed mold.

[0003] In the prior art, there is a locking device for mold clamping and a mold with publication number CN117002051A, which includes an upper locking part and a lower locking part, wherein the upper locking part includes an upper frame, a first hydraulic motor fixedly connected to the upper frame, a connecting and fixing rod and a first transmission part, and the lower locking part includes a lower frame and a hydraulic locking structure, wherein the lower frame is provided with an internal threaded hole, and the hydraulic locking structure includes a locking ring, a second hydraulic motor driving the locking ring to rotate, and a second transmission part connected to the second hydraulic motor, wherein the first hydraulic motor can drive the connecting and fixing rod to rotate, so as to form a threaded connection between the connecting and fixing rod and the lower frame, and the second hydraulic motor can drive the locking ring to rotate, so as to enable the locking ring to move axially along the connecting and fixing rod;

[0004] However, when the existing wind turbine blade mold locking device is in use, it is impossible to perform a sealing test on the locked mold, because it is impossible to effectively ensure that the mold is locked in place. At the same time, the mold cannot be locked again after being locked, so that the locking power relies solely on a single driving device, which is prone to malfunction and loosening, and has certain usage defects. Summary of the invention

[0005] The purpose of the present invention is to provide a wind turbine blade mold locking device that is easy to assemble and disassemble and a method of using the same, so as to solve the problem raised by the above-mentioned background technology that the wind turbine blade mold locking device currently on the market cannot perform sealing detection on the locked mold when in use, cannot effectively ensure that the mold is locked in place, and at the same time, the mold cannot be locked for a second time after being locked, so that the locking power relies solely on a single driving device, which is prone to malfunction and loosening.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wind turbine blade mold locking device that is easy to disassemble and assemble, comprising an upper fixing plate and a lower fixing plate that are respectively fixedly mounted on the sides of the upper mold and the lower mold, wherein the upper fixing plate and the lower fixing plate are both provided with long screw holes for screw fixing, and the upper fixing plate and the lower fixing plate are also fixedly mounted with support blocks, and the upper fixing plate and the lower fixing plate are respectively fixedly connected with a first locking seat and a second locking seat through the support blocks, and a positioning hole for positioning and locking is provided on the first locking seat;

[0007] It also includes: a hydraulic cylinder, fixedly installed in the inner cavity of the second locking seat, a push block is fixedly installed at the output end of the hydraulic cylinder, a pull rod is fixedly installed on the upper surface of the push block, and a top column is fixedly installed on the upper end of the pull rod;

[0008] A fixed cylinder is fixedly mounted on the upper end of the second locking seat, and a limit position assembly is connected between the fixed cylinder and the top column;

[0009] A telescopic rod, telescopically mounted on the second locking seat, with a sealing cover fixedly mounted on the upper end of the telescopic rod;

[0010] A partition is installed in the cavity of the second locking seat by lifting, and a monitoring component is connected between the partition and the second locking seat to monitor the pressure applied to the partition;

[0011] The gas delivery component is arranged between the push block and the partition plate to realize the gas delivery during locking;

[0012] The locking assembly is installed on the inner wall of the second locking seat and realizes the limit locking of the push block through temperature changes.

[0013] Preferably, the first locking seat and the second locking seat are fitted together, and two positioning holes are symmetrically provided at the lower end of the first locking seat, and the positioning holes and the top column are clearance-matched to achieve a guiding connection.

[0014] By adopting the above technical solution, when the movable mold is moved to close the mold, the first locking seat on the outer side of the movable mold can be driven to fit the second locking seat on the outer side of the fixed mold, so that the ejector column can pass through the positioning hole to achieve preliminary guiding positioning.

[0015] Preferably, the fixing tube passes through and is fixedly installed on the upper end of the second locking seat, and the pull rod passes through the fixing tube, and the pull rod and the fixing tube form a lifting structure.

[0016] By adopting the above technical solution, the hydraulic cylinder can push the push block downward, thereby driving the pull rod to move downward synchronously, thereby realizing the position adjustment of the top column.

[0017] Preferably, the limiting assembly includes a first connecting rod and a second connecting rod which are respectively and evenly elastically connected to the top column and the outside of the fixed cylinder, and the lower end of the first connecting rod and the upper end of the second connecting rod are rotationally connected, and the second connecting rod is rotated and unfolded to fit and support on the upper inner wall of the positioning hole.

[0018] By adopting the above technical solution, when the top column moves downward, it can drive the first connecting rod and the second connecting rod to rotate, so that the connection between the first connecting rod and the second connecting rod expands outward, thereby achieving the clamping of the positioning hole.

[0019] Preferably, the lower end of the telescopic rod passes through the side wall of the second locking seat, and a first spring is connected between the telescopic rod and the second locking seat, and the telescopic rod and the second locking seat constitute an elastic telescopic structure, the push block and the second locking seat constitute a lifting structure, and the push block is attached to one side of the lower end of the telescopic rod in an inclined structure, and when the push block moves downward, it pushes the telescopic rod close to the mold joint.

[0020] By adopting the above technical solution, when the push block moves downward, the telescopic rod can be pushed by the resistance of the inclined surface to perform elastic telescopic adjustment, so that the sealing cover on the top of the telescopic rod is close to the mold joint.

[0021] Preferably, the outer ring of the sealing cover is fixedly provided with rubber material, and the sealing cover is sealed to fit the mold joint after moving, and the air supply component includes an elastic airbag fixedly connected between the push block and the partition, and the elastic airbag and the sealing cover are connected by a first air supply pipe.

[0022] By adopting the above technical solution, when the sealing cover is attached to the side wall of the mold, the telescopic rod will slide along the vertical side of the push block, and the elastic airbag will continue to be pressurized, thereby increasing the air pressure inside the sealing cover.

[0023] Preferably, the monitoring assembly includes a second spring fixedly connected to the partition and the inner wall of the second locking seat, and the partition and the second locking seat constitute an elastic lifting structure, and a pressure sensor is installed between the partition and the inner wall of the second locking seat.

[0024] By adopting the above technical solution, when the mold connection is sealed, the gas in the sealing cover cannot be discharged, so that the elastic airbag will push the partition downward after being pressurized, thereby being detected by the pressure sensor. When the mold connection does not meet the sealing requirements, the gas in the elastic airbag will continue to be discharged, making it impossible for the partition to move downward to squeeze the pressure sensor, thereby achieving effective detection of the sealing of the mold connection.

[0025] Preferably, the locking assembly includes a fixing seat fixedly mounted on the inner wall of the second locking seat, and a control bag is fixedly mounted on the inner side of the fixing seat, and the control bag and the elastic air bag are connected through a second air supply pipe, and a bayonet is fixedly connected to the outer side of the control bag, a third spring is connected between the bayonet and the inner wall of the fixing seat, and the bayonet and the fixing seat form an elastic telescopic structure, a limiting hole is provided on the side wall of the push block, and the bayonet forms a plug-in structure with the limiting hole after being extended.

[0026] By adopting the above technical solution, when the sealing cover is attached to the mold connection seam, the gas inside it will exchange heat with the injection molding material in the mold, so that the internal air pressure of the control bag increases and further expands, thereby pushing the latch to elastically expand and insert into the limit hole, thereby locking the push block.

[0027] A method for using a wind turbine blade mold locking device that is easy to assemble and disassemble comprises the following steps:

[0028] The first step is to fix the upper fixing plate and the lower fixing plate to the outer sides of the movable mold and the fixed mold of the wind turbine blade mold respectively by screws, and then control the mold to be close and spliced. At this time, the top column will pass through the positioning hole to achieve guidance. When the first locking seat and the second locking seat are in contact with each other, start the hydraulic cylinder and control the hydraulic cylinder to push the push block to move down on the inner side of the second locking seat. At this time, the push block will drive the pull rod to move down synchronously, and the pull rod will be telescopically adjusted with the fixed tube, thereby driving the top column to move down synchronously, so that the top column drives multiple groups of first connecting rods and second connecting rods to rotate and expand outward. At this time, the second connecting rod will fit and support the upper inner wall of the positioning hole after rotation, so as to achieve the fit locking of the first locking seat and the second locking seat, and ensure the effective locking of the movable mold and the fixed mold;

[0029] The second step is that as the push block moves downward, its inclined surface will contact the lower end of the telescopic rod, thereby pushing the telescopic rod to elastically expand and contract, so that the sealing cover on the top of the telescopic rod can be sealed and fitted at the mold joint. As the push block continues to move downward, the lower end of the telescopic rod will slide against the vertical surface of the side of the push block. At this time, the push block will continue to squeeze the elastic airbag. When the mold joint is sealed well, the elastic airbag will drive the partition to move downward and squeeze the pressure sensor after being pressurized to achieve pressure detection. When the mold joint is not fully sealed, the sealing cover will be exhausted, thereby reducing the pressure detected by the pressure sensor, thereby achieving sealing detection of the mold joint during the locking process.

[0030] The third step is that when the elastic airbag is pressurized, part of the gas inside it will enter the control bag through the second air pipe, causing the control bag to expand. The expanded control bag will push the bayonet pin to move elastically, so that the bayonet pin is close to the opening of the limiting hole. When the injection molding material is injected into the mold, the air inside the sealing cover will be heated, thereby increasing the air pressure inside the control bag, thereby pushing the bayonet pin to further expand and contract, so that it is stuck in the limiting hole, thereby locking the push block and further improving the locking effect of the mold.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: the conveniently disassembled wind turbine blade mold locking device and the use method thereof can be conveniently disassembled and assembled and locked twice, thereby realizing stable locking of the mold, and the mold can be sealed and tested during the locking process to ensure the locking effect. The specific contents are as follows;

[0032] 1. A pull rod, a push column, a first connecting rod and a second connecting rod are provided. When the mold is closed, the first locking seat and the second locking seat will be close to each other, and the push column will pass through the positioning hole. Then the hydraulic cylinder is controlled to push the push block downward, so that the push block pulls the two push columns downward through the pull rod, so that the push column drives the first connecting rod and the second connecting rod to rotate and expand. The expanded second connecting rod will fit and support the upper inner wall of the positioning hole, thereby realizing the locking of the first locking seat and the second locking seat, and then realizing the locking of the movable mold and the fixed mold, making the disassembly and assembly of the mold more convenient;

[0033] 2. A telescopic rod, a sealing cover, a pressure sensor and an elastic airbag are provided. When the push block moves downward, the inclined surface of the push block will contact the lower end of the telescopic rod, pushing the telescopic rod to elastically expand and contract, so that the sealing cover is sealed and fitted to the joint of the mold. As the push block continues to move downward, the elastic airbag can be squeezed, and the pressure change of the pressure sensor can achieve the sealing effect of the mold joint, thereby verifying the locking effect of the device;

[0034] 3. A control bag and a bayonet are provided. When the material is injected into the mold, the heat generated by the material will heat the air in the sealing cover, so that the air pressure inside the control bag is further increased, so that the control bag is deformed and pushes the bayonet to elastically expand and contract, and then automatically snaps into the limit hole, thereby realizing secondary locking of the push block and further improving the locking effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0036] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0037] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0038] Figure 4 It is a schematic cross-sectional structural diagram of the second locking seat of the present invention;

[0039] Figure 5 This is a schematic diagram of the split structure of the first locking seat and the second locking seat of the present invention;

[0040] Figure 6 This is a schematic diagram of the connection structure between the first connecting rod and the second connecting rod of the present invention;

[0041] Figure 7 It is a schematic diagram of the cross-sectional structure of the elastic airbag of the present invention;

[0042] Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0043] In the figure: 1. upper fixing plate; 2. lower fixing plate; 3. long screw hole; 4. support block; 5. first locking seat; 6. second locking seat; 7. positioning hole; 8. hydraulic cylinder; 9. push block; 10. pull rod; 11. top column; 12. fixing tube; 13. first connecting rod; 14. second connecting rod; 15. limiting hole; 16. telescopic rod; 17. first spring; 18. sealing cover; 19. partition; 20. second spring; 21. pressure sensor; 22. elastic airbag; 23. first air pipe; 24. fixing seat; 25. control bag; 26. second air pipe; 27. third spring; 28. bayonet. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Example 1: Please refer to Figure 1-Figure 6 As shown, the existing wind turbine blade mold locking device is inconvenient to detect the joint sealing of the mold during use, so the locking effect cannot be guaranteed. In order to solve this technical problem, this embodiment discloses the following technical content;

[0046] A wind turbine blade mold locking device with convenient assembly and disassembly, comprising an upper fixing plate 1 and a lower fixing plate 2 respectively fixedly mounted on the sides of an upper mold and a lower mold, wherein the upper fixing plate 1 and the lower fixing plate 2 are both provided with long screw holes 3 for screw fixing, and the upper fixing plate 1 and the lower fixing plate 2 are also fixedly mounted with support blocks 4, and the upper fixing plate 1 and the lower fixing plate 2 are respectively fixedly connected with a first locking seat 5 and a second locking seat 6 through the support blocks 4, and the first locking seat 5 is provided with a positioning hole 7 for positioning and locking;

[0047] It also includes: a hydraulic cylinder 8, which is fixedly installed in the inner cavity of the second locking seat 6, a push block 9 is fixedly installed at the output end of the hydraulic cylinder 8, a pull rod 10 is fixedly installed on the upper surface of the push block 9, and a top column 11 is fixedly installed at the upper end of the pull rod 10;

[0048] A fixed cylinder 12 is fixedly mounted on the upper end of the second locking seat 6, and a limit position assembly is connected between the fixed cylinder 12 and the top column 11; a telescopic rod 16 is telescopically mounted on the second locking seat 6, and a sealing cover 18 is fixedly mounted on the upper end of the telescopic rod 16; a partition 19 is lifted and mounted in the cavity of the second locking seat 6, and a monitoring assembly is connected between the partition 19 and the second locking seat 6 to monitor the pressure applied by the partition 19; a gas transmission assembly is arranged between the push block 9 and the partition 19 to realize gas transmission during locking;

[0049] The first locking seat 5 and the second locking seat 6 fit together, and two positioning holes 7 are symmetrically opened at the lower end of the first locking seat 5, and the positioning holes 7 and the top column 11 are clearance-matched to achieve a guiding connection. The fixed cylinder 12 passes through and is fixedly installed on the upper end of the second locking seat 6, and the pull rod 10 passes through the fixed cylinder 12, and the pull rod 10 and the fixed cylinder 12 form a lifting structure. The limiting assembly includes a first connecting rod 13 and a second connecting rod 14 that are respectively and uniformly elastically connected to the outside of the top column 11 and the fixed cylinder 12, and the lower end of the first connecting rod 13 and the upper end of the second connecting rod 14 are rotationally connected, and the second connecting rod 14 rotates and unfolds to fit and support the inner wall of the upper end of the positioning hole 7.

[0050] The lower end of the telescopic rod 16 passes through the side wall of the second locking seat 6, and a first spring 17 is connected between the telescopic rod 16 and the second locking seat 6, and the telescopic rod 16 and the second locking seat 6 constitute an elastic telescopic structure, the push block 9 and the second locking seat 6 constitute a lifting structure, and the push block 9 is attached to one side of the lower end of the telescopic rod 16 and is arranged in an inclined structure, and when the push block 9 moves downward, it pushes the telescopic rod 16 close to the mold joint.

[0051] The outer ring of the sealing cover 18 is fixedly provided with rubber material, and the sealing cover 18 is sealed and fitted to the mold joint after moving, and the air supply component includes an elastic air bag 22 fixedly connected between the push block 9 and the partition 19, and the elastic air bag 22 and the sealing cover 18 are connected by a first air supply pipe 23.

[0052] The monitoring component includes a second spring 20 fixedly connected to the partition 19 and the inner wall of the second locking seat 6, and the partition 19 and the second locking seat 6 constitute an elastic lifting structure, and a pressure sensor 21 is installed between the partition 19 and the inner wall of the second locking seat 6.

[0053] The upper fixing plate 1 and the lower fixing plate 2 are fixedly installed on the outer sides of the movable mold and the fixed mold of the wind turbine blade mold by screws, and then the mold is controlled to be close and spliced. At this time, the top column 11 will pass through the positioning hole 7 to achieve guidance. When the first locking seat 5 and the second locking seat 6 are in contact with each other, the hydraulic cylinder 8 is started and the hydraulic cylinder 8 is controlled to push the push block 9 to move downward on the inner side of the second locking seat 6. At this time, the push block 9 will drive the pull rod 10 to move downward synchronously, and the pull rod 10 will be telescopically adjusted with the fixed cylinder 12, thereby driving the top column 11 to move downward synchronously, so that the top column 11 drives multiple groups of first connecting rods 13 and second connecting rods 14 to rotate and expand outward. At this time, the second connecting rod 14 will be in contact with the inner wall of the upper end of the positioning hole 7 after rotation, so as to achieve the fitting and locking of the first locking seat 5 and the second locking seat 6, and ensure the effective locking of the movable mold and the fixed mold;

[0054] As the push block 9 moves downward, its inclined surface will contact the lower end of the telescopic rod 16, thereby pushing the telescopic rod 16 to elastically expand and contract, so that the sealing cover 18 on the top of the telescopic rod 16 can be sealed and fitted to the mold joint seam. As the push block 9 continues to move downward, the lower end of the telescopic rod 16 will slide against the vertical surface of the side of the push block 9. At this time, the push block 9 will continue to squeeze the elastic airbag 22. When the mold joint seam is sealed intact, the elastic airbag 22 will drive the partition 19 to move downward and squeeze the pressure sensor 21 after being pressurized to achieve pressure detection. When the mold joint seam is not fully sealed, the sealing cover 18 will be exhausted, thereby reducing the pressure detected by the pressure sensor 21, thereby achieving sealing detection of the mold joint seam during the locking process.

[0055] Embodiment 2: The technical content disclosed in this embodiment is a further improvement on the above embodiment 1. The existing wind turbine blade mold locking device only realizes the locking operation through a single driving device during use, which makes the locking device easy to loosen and disengage. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 3-Figure 4 and Figure 7-Figure 8 As shown;

[0056] The locking assembly is mounted on the inner wall of the second locking seat 6, and realizes the limit locking of the push block 9 through temperature change. The locking assembly includes a fixing seat 24 fixedly mounted on the inner wall of the second locking seat 6, and a control bag 25 is fixedly mounted on the inner side of the fixing seat 24, and the control bag 25 and the elastic air bag 22 are connected through a second air delivery pipe 26, and a bayonet 28 is fixedly connected to the outer side of the control bag 25, and a third spring 27 is connected between the bayonet 28 and the inner wall of the fixing seat 24, and the bayonet 28 and the fixing seat 24 form an elastic telescopic structure, and a limit hole 15 is provided on the side wall of the push block 9, and the bayonet 28 forms a plug-in structure with the limit hole 15 after being extended.

[0057] When the elastic airbag 22 is pressurized, part of the gas inside it will enter the control bag 25 through the second air supply pipe 26, causing the control bag 25 to expand. The expanded control bag 25 will push the bayonet 28 to move elastically, so that the bayonet 28 is close to the opening of the limiting hole 15. When the injection molding material is injected into the mold, the air inside the sealing cover 18 will be heated, thereby increasing the air pressure inside the control bag 25, thereby pushing the bayonet 28 to further expand and contract, thereby getting stuck in the limiting hole 15, thereby locking the push block 9 and further improving the locking effect of the mold.

[0058] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0059] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind turbine blade mold locking device that is easy to assemble and disassemble, comprising an upper fixing plate (1) and a lower fixing plate (2) fixedly mounted on the sides of an upper mold and a lower mold respectively, wherein the upper fixing plate (1) and the lower fixing plate (2) are both provided with long screw holes (3) for screw fixing, and the upper fixing plate (1) and the lower fixing plate (2) are also fixedly mounted with support blocks (4), and the upper fixing plate (1) and the lower fixing plate (2) are respectively fixedly connected with a first locking seat (5) and a second locking seat (6) via the support blocks (4), and the first locking seat (5) is provided with a positioning hole (7) for positioning and locking; It is characterized in that Also includes: A hydraulic cylinder (8) is fixedly mounted in the inner cavity of the second locking seat (6); a push block (9) is fixedly mounted on the output end of the hydraulic cylinder (8); a pull rod (10) is fixedly mounted on the upper surface of the push block (9); and a top column (11) is fixedly mounted on the upper end of the pull rod (10); the positioning hole (7) and the top column (11) are clearance-matched to achieve a guiding connection; A fixed cylinder (12) is fixedly mounted on the upper end of the second locking seat (6), a limiting assembly is connected between the fixed cylinder (12) and the top column (11), and the pull rod (10) passes through the fixed cylinder (12), and the pull rod (10) and the fixed cylinder (12) form a lifting structure, the limiting assembly includes a first connecting rod (13) and a second connecting rod (14) which are respectively and evenly elastically connected to the top column (11) and the outside of the fixed cylinder (12), and the lower end of the first connecting rod (13) and the upper end of the second connecting rod (14) are connected in rotation, and the second connecting rod (14) is rotated and unfolded to fit and support the inner wall of the upper end of the positioning hole (7); A telescopic rod (16) is telescopically mounted on the second locking seat (6), a sealing cover (18) is fixedly mounted on the upper end of the telescopic rod (16), a lower end of the telescopic rod (16) passes through the side wall of the second locking seat (6), a first spring (17) is connected between the telescopic rod (16) and the second locking seat (6), and the telescopic rod (16) and the second locking seat (6) form an elastic telescopic structure; A partition (19) is installed in a lifting manner in the cavity of the second locking seat (6), a monitoring component is connected between the partition (19) and the second locking seat (6) for monitoring the pressure applied by the partition (19), the monitoring component comprises a second spring (20) fixedly connected to the partition (19) and the inner wall of the second locking seat (6), the partition (19) and the second locking seat (6) constitute an elastic lifting structure, and a pressure sensor (21) is installed between the partition (19) and the inner wall of the second locking seat (6); A gas delivery component is arranged between the push block (9) and the partition (19) to realize gas delivery during locking, wherein the gas delivery component comprises an elastic air bag (22) fixedly connected between the push block (9) and the partition (19), and the elastic air bag (22) and the sealing cover (18) are connected via a first gas delivery pipe (23); A locking assembly is mounted on the inner wall of the second locking seat (6) and realizes the limit locking of the push block (9) through temperature change. The locking assembly comprises a fixing seat (24) fixedly mounted on the inner wall of the second locking seat (6), and a control bag (25) is fixedly mounted on the inner side of the fixing seat (24), and the control bag (25) and the elastic air bag (22) are connected through a second air delivery pipe (26). At the same time, a bayonet (28) is fixedly connected to the outer side of the control bag (25), and a third spring (27) is connected between the bayonet (28) and the inner wall of the fixing seat (24), and the bayonet (28) and the fixing seat (24) form an elastic telescopic structure. The side wall of the push block (9) is provided with a limit hole (15), and the bayonet (28) forms a plug-in structure with the limit hole (15) after being extended.

2. The wind turbine blade mold locking device that is easy to assemble and disassemble according to claim 1 is characterized in that: The first locking seat (5) and the second locking seat (6) fit together, and two positioning holes (7) are symmetrically provided at the lower end of the first locking seat (5).

3. The wind turbine blade mold locking device that is easy to assemble and disassemble according to claim 1 is characterized in that: The fixing tube (12) penetrates and is fixedly mounted on the upper end of the second locking seat (6).

4. The wind turbine blade mold locking device that is easy to assemble and disassemble according to claim 1 is characterized in that: The push block (9) and the second locking seat (6) form a lifting structure, and the push block (9) is arranged in an inclined structure on one side of the lower end of the telescopic rod (16), and when the push block (9) moves downward, it pushes the telescopic rod (16) close to the mold joint.

5. The wind turbine blade mold locking device that is easy to assemble and disassemble according to claim 4 is characterized in that: The outer ring of the sealing cover (18) is fixedly provided with a rubber material, and the sealing cover (18) is sealed against the mold joint after being moved.

6. The conveniently disassembled and assembled wind turbine blade mold locking device according to claim 5, characterized in that: The method of using the locking device is as follows: S1. The upper fixing plate (1) and the lower fixing plate (2) are respectively fixedly installed on the outer sides of the upper mold and the lower mold of the wind turbine blade mold by screws, and then the molds are controlled to be close to each other for splicing. At this time, the top column (11) will penetrate the positioning hole (7) to achieve guidance. When the first locking seat (5) and the second locking seat (6) are fitted with each other, the hydraulic cylinder (8) is started and the hydraulic cylinder (8) is controlled to push the push block (9) to move downward on the inner side of the second locking seat (6). At this time, the push block (9) will drive the pull rod (10) to move downward synchronously, and the pull rod (10) will be telescopically adjusted with the fixing tube (12), thereby driving the top column (11) to move downward synchronously, so that the top column (11) drives multiple groups of first connecting rods (13) and second connecting rods (14) to rotate and expand outward. At this time, the second connecting rod (14) will fit and support on the upper inner wall of the positioning hole (7) after rotation, so as to achieve the fitting and locking of the first locking seat (5) and the second locking seat (6), thereby ensuring the effective locking of the movable mold and the fixed mold; S2. As the push block (9) moves downward, its inclined surface structure will contact the lower end of the telescopic rod (16), thereby pushing the telescopic rod (16) to elastically expand and contract, so that the sealing cover (18) on the top of the telescopic rod (16) can be sealed and fitted on the mold joint seam. As the push block (9) continues to move downward, the lower end of the telescopic rod (16) will slide against the vertical surface of the side of the push block (9). At this time, the push block (9) will continue to squeeze the elastic airbag (22). When the mold joint seam is sealed well, the elastic airbag (22) will be pressed to drive the partition plate (19) to move downward and squeeze the pressure sensor (21) to achieve pressure detection. When the mold joint seam is not fully sealed, the sealing cover (18) will be exhausted, thereby reducing the pressure detected by the pressure sensor (21), thereby achieving sealing detection of the mold joint seam during the locking process. S3. When the elastic airbag (22) is pressurized, part of the gas inside it will enter the control bag (25) through the second air supply pipe (26), causing the control bag (25) to expand. The expanded control bag (25) will push the latch (28) to move elastically, so that the latch (28) is close to the opening of the limiting hole (15). When the injection molding material is injected into the mold, the air inside the sealing cover (18) will be heated, thereby increasing the internal air pressure of the control bag (25), thereby pushing the latch (28) to further expand and contract, so that it is stuck in the limiting hole (15), thereby locking the push block (9), and further improving the locking effect of the mold.

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