Efficient freeze dryer capable of removing water vapor based on high-voltage electric field

Abstract

The invention discloses an efficient freeze dryer capable of removing water vapor based on a high-voltage electric field, and belongs to the technical field of freeze dryers. Comprising a support and a freeze dryer and a tray frame which are installed at the top of the support, the tray frame is installed in the freeze dryer, a supporting plate is fixedly connected to the top of the tray frame, and a plurality of first net box trays and a plurality of second net box trays are arranged on the inner side of the supporting plate; one first net box tray and one second net box tray form a group for assisting material turning, and a material turning mechanism for turning materials is arranged on one side of one group of the first net box tray and the second net box tray. According to the invention, the material turning mechanism is matched with the floating regulator; and the rotating disc is driven to drive the first net box tray and the second net box tray which are closed to rotate circumferentially, so that materials in the net box tray and the second net box tray can roll over, the situation that the materials are stacked at one position to affect the freeze-drying effect is avoided, and the overall practicability of the device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of freeze dryers, in particular to a high-efficiency freeze dryer based on high-voltage electric field to remove water vapor. Background Art

[0002] A freeze dryer, also known as a food vacuum freeze dryer, is a device that uses the principles of freezing and sublimation to remove moisture from objects in order to achieve long-term preservation and maintain the original properties. However, a high-efficiency freeze dryer that removes water vapor based on a high-voltage electric field is achieved by setting up a high-voltage electric field inside the freeze dryer. Under the action of the high-voltage electric field, water vapor molecules in the air will be affected by the electric field force, polarized and attracted to each other, and eventually condensed into water droplets or ice crystals. This process can accelerate the removal of water vapor and improve drying efficiency.

[0003] However, in the existing high-voltage electric field dehumidification high-efficiency freeze dryer, during the centralized freeze-drying process of granular materials, the materials are placed on trays and easily piled up, resulting in large temperature differences inside the materials. The temperature in some areas is too high or too low. Areas with too high temperatures may cause local overheating of the materials, affecting product quality; areas with too low temperatures may not be dried thoroughly, resulting in uneven moisture content of the product, thereby causing poor freeze-drying effect of the materials. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A high-efficiency freeze dryer based on high-voltage electric field for removing moisture, comprising a support and a freeze dryer mounted on the top of the support, a tray rack, the tray rack being mounted inside the freeze dryer, the top of the tray rack being fixedly connected to a support plate, a plurality of first mesh box trays and a plurality of second mesh box trays being arranged on the inner side of the support plate, a first mesh box tray and a second mesh box tray forming a group for assisting material turning, a turning mechanism for turning the material is arranged on one side of a group of the first mesh box tray and the second mesh box tray; a floating adjuster, located on the outer side of the support plate, for assisting the turning mechanism in turning the material; a toggle adjusting member, located on the inner side of the first mesh box tray and the second mesh box tray, for toggling the material on the inner side of the first mesh box tray and the second mesh box tray.

[0007] A further technical solution is that the floating adjuster includes a first driving motor installed at the bottom of the pallet rack, the output end of the first driving motor is connected to a transmission rod, and one end of the transmission rod passes through the top of the pallet rack and is rotatably connected to the pallet rack, a plurality of movable plates are arranged on the inner side of the support plate, one of the movable plates is fixedly connected to the support plate, and the remaining movable plates are slidably connected to the support plate and are installed on the outer wall of the transmission rod, and a rotating disk is arranged at one end of the movable plate.

[0008] According to a further technical solution, the transmission rod is composed of a plurality of reciprocating screw rods, and the pitches of the double thread grooves arranged on the outer walls of the plurality of reciprocating screw rods increase in an arithmetic progression from top to bottom.

[0009] A further technical solution is that the turning mechanism includes a rotating shaft rotatably connected to the inner side of the movable plate, one end of the rotating shaft is fixedly connected to the rotating disk, the outer wall of the rotating shaft located on the movable plate fixed on the inner side of the support plate is fixedly connected to a first bevel gear, the top of the transmission rod is fixedly connected to a second bevel gear meshing with the first bevel gear, the outer walls of the remaining rotating shafts are fixedly connected to a spur gear, and the top of the tray rack is located on the inner side of the movable plate and is fixedly connected to a spur rack meshing with the spur gear.

[0010] A further technical solution is that the material turning mechanism also includes a second driving motor installed on the top of the rotating disk, the output end of the second driving motor is connected to a bidirectional threaded screw, the outer wall of the bidirectional threaded screw is equipped with two sliders, and one side of each slider is fixedly connected to a support plate, the two support plates are respectively located on the top of the first net box tray and the second net box tray, the outer wall of the bidirectional threaded screw is provided with a positive thread and a negative thread, the two sliders are respectively threadedly connected to the positive thread and the negative thread outer wall, and the inner side of the rotating disk is provided with a limiting sliding groove matching the two sliders.

[0011] According to a further technical solution, a T-shaped block is fixedly connected to the bottom of the first net box tray and the top of the second net box tray, a T-shaped slot matching the T-shaped block is provided on the inner side of the support plate, the first net box tray or the second net box tray is slidably connected to the support plate via the T-shaped block, and the T-shaped block and the support plate are fixedly connected via bolts.

[0012] A further technical solution, the toggle adjustment member includes a plurality of trapezoidal push rods arranged on the inner sides of the first net box tray and the second net box tray, the plurality of trapezoidal push rods are fixedly connected by a movable rod, one end of the movable rod penetrates the outer wall of the first net box tray and is flush with the end of the first net box tray, the inner sides of the first net box tray and the second net box tray are fixedly connected with a protective sleeve, the outer wall of the movable rod is fixedly connected with a first ring, and the first ring is arranged on the inner side of the protective sleeve, and a connecting spring is installed between the first ring and the first net box tray.

[0013] A further technical solution, the toggle adjustment member also includes a power rod slidably connected to the inner side of the rotating shaft, one end of the power rod passes through the inner side of the rotating disk and is fixedly connected to a T-shaped plate, the outer wall of the T-shaped plate is slidably connected to two rectangular push rods, one side of each of the two sliding blocks is fixedly connected to a connecting rod, one end of the rectangular push rod passes through the outside of the connecting rod and abuts against one side of the movable rod, and the rectangular push rod is slidably connected to the connecting rod, the other end of the power rod is fixedly connected to a spherical rod, the inner side of the movable plate is fixedly connected to an oblique ring, and the end of the oblique ring is provided with an arc-shaped inclined surface, the outer wall of the power rod is fixedly connected to a second circular ring, and an auxiliary spring is installed between the second circular ring and the rotating shaft.

[0014] Beneficial effects of the present invention:

[0015] The present invention cooperates with the floating regulator by arranging a material turning mechanism; first, the bottom of the first net box tray and the top of the second net box tray are composed of a mesh partition, so that the first net box tray and the second net box tray are closed to perform freeze-drying operation on the materials inside. When the materials need to be freeze-dried, the second driving motor on the top of each rotating disk can be started, and the output end of the second driving motor drives the bidirectional threaded screw to rotate, thereby driving the two sliders to drive the first net box tray and the second net box tray to approach each other through a support plate respectively, so that after the first net box tray and the second net box tray are closed, the first driving motor is then started, and the output end of the first driving motor drives the transmission rod to rotate in a circle, thereby driving multiple movable plates to drive a group of the first net box tray and the second net box tray to move back and forth up and down respectively. Since the spur rack is fixed, the spur gear is driven by the spur rack to drive the rotating shaft to rotate, thereby driving the rotating disk to drive the closed first net box tray and the second net box tray to rotate in a circle, so that the materials inside can roll, thereby avoiding the accumulation of materials in one place affecting the freeze-drying effect.

[0016] By arranging the cooperation of the moving rod and other parts, since the transmission rod is composed of a plurality of reciprocating screw rods, and the pitches of the double thread grooves arranged on the outer walls of the plurality of reciprocating screw rods increase in an arithmetic progression from top to bottom, the rotating disks arranged vertically in the process of the transmission rod rotating are dispersed in an arithmetic progression in the process of moving downward, so that the first net box tray and the second net box tray can perform stable circular rotation;

[0017] By setting a toggle adjustment piece, when the rotating shaft rotates in a circle, the spherical rod is driven to rotate in a circle at the same time, so that when the spherical rod moves from the lowest point of the arc-shaped inclined surface at one end of the inclined ring to the highest point, the spherical rod is pushed to drive the power rod to move toward the first net box tray, so that the rectangular push rod pushes the movable rod to drive the trapezoidal push rod to move horizontally. When the spherical rod moves from the highest point of the arc-shaped inclined surface at one end of the inclined ring to the lowest point, the movable rod is reset under the action of the connecting spring, so that the trapezoidal push rod can toggle the material frozen on the first net box tray during the reciprocating movement, thereby ensuring the subsequent rolling effect of the material.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : A schematic structural diagram of the present invention;

[0020] Figure 2 : An exploded view of the present invention;

[0021] Figure 3 : A schematic diagram of the structure of the tray rack of the present invention;

[0022] Figure 4 : The present invention Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 : A schematic diagram of the partial structure of the pallet rack of the present invention;

[0024] Figure 6 : The present invention Figure 5 Enlarged view of point B in the middle;

[0025] Figure 7 : A schematic diagram of the transmission rod structure of the present invention;

[0026] Figure 8 : The present invention Figure 7 Enlarged view of point C in the middle;

[0027] Fig. 9 : A cross-sectional view of a rotating disk of the present invention;

[0028] Fig.10 : A schematic diagram of the structure of the toggle adjustment member of the present invention;

[0029] Fig.11 : A cross-sectional view of the rotating shaft of the present invention;

[0030] Fig.12 : Cross-sectional view of the support plate and T-block of the present invention.

[0031] 1. The worm gear of the embodiment of the present invention is provided with a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate, a toothed plate DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] Please refer to Figure 1-12 ;

[0034] Example 1

[0035] like Figures 1 to 12As shown, an embodiment of the present invention provides a high-efficiency freeze dryer based on high-voltage electric field for removing water vapor, including a support 1 and a freeze dryer 2 installed on the top of the support 1, a tray rack 3, the tray rack 3 is installed inside the freeze dryer 2, the top of the tray rack 3 is fixedly connected with a support plate 4, the inner side of the support plate 4 is provided with a plurality of first net box trays 5 and a plurality of second net box trays 6, a first net box tray 5 and a second net box tray 6 form a group for assisting material turning, and a turning mechanism for turning the material is provided on one side of a group of first net box trays 5 and second net box trays 6; a floating regulator is located on the outer side of the support plate 4, and is used to assist the turning mechanism in turning the material, and the floating regulator includes an installation A first driving motor 8 is provided at the bottom of the tray rack 3, and a transmission rod 18 is connected to the output end of the first driving motor 8, and one end of the transmission rod 18 passes through the top of the tray rack 3 and is rotatably connected to the tray rack 3. A plurality of movable plates 19 are provided on the inner side of the support plate 4, one of which is fixedly connected to the support plate 4, and the remaining movable plates 19 are slidably connected to the support plate 4 and are installed on the outer wall of the transmission rod 18. A rotating disk 7 is provided at one end of the movable plate 19. The transmission rod 18 is composed of a plurality of reciprocating screw rods, and the pitches of the double thread grooves provided on the outer walls of the plurality of reciprocating screw rods increase in an arithmetic progression from top to bottom. The turning mechanism includes a rotating shaft 20 rotatably connected to the inner side of the movable plate 19, and the rotating shaft 20 is provided with a rotating disk 7. One end is fixedly connected to the rotating disk 7, and the outer wall of the rotating shaft 20 located on the movable plate 19 fixed to the inner side of the support plate 4 is fixedly connected to the first bevel gear 21, and the top of the transmission rod 18 is fixedly connected to the second bevel gear 34 meshing with the first bevel gear 21, and the outer walls of the remaining rotating shafts 20 are fixedly connected to a spur gear 25, and the top of the tray rack 3 is located on the inner side of the movable plate 19 and is fixedly connected to a spur rack 24 meshing with the spur gear 25. The turning mechanism also includes a second drive motor 9 installed on the top of the rotating disk 7, and the output end of the second drive motor 9 is connected to a bidirectional threaded screw 28. The outer wall of the bidirectional threaded screw 28 is installed with two sliders 11, and one side of each slider 11 is A support plate 13 is fixedly connected, and the two support plates 13 are respectively located at the top of the first net box tray 5 and the second net box tray 6. The outer wall of the bidirectional threaded screw 28 is provided with positive threads and negative threads. The two sliders 11 are respectively threadedly connected to the positive threads and the negative threads on the outer wall. The inner side of the rotating disk 7 is provided with a limiting slide groove matching the two sliders 11. The bottom of the first net box tray 5 and the top of the second net box tray 6 are both fixedly connected with a T-shaped block 14. The inner side of the support plate 13 is provided with a T-shaped slot matching the T-shaped block 14. The first net box tray 5 or the second net box tray 6 is slidably connected to the support plate 13 through the T-shaped block 14, and the T-shaped block 14 and the support plate 13 are fixedly connected by bolts 33.

[0036] First, the bottom of the first net box tray 5 and the top of the second net box tray 6 are composed of a mesh partition, so that the first net box tray 5 and the second net box tray 6 are closed to perform freeze-drying operation on the materials inside. When the materials need to be freeze-dried, the second drive motor 9 on the top of each rotating disk 7 can be started, and the output end of the second drive motor 9 drives the bidirectional threaded screw 28 to rotate, thereby driving the two sliders 11 to drive the first net box tray 5 and the second net box tray 6 to approach each other through a support plate 13, so that after the first net box tray 5 and the second net box tray 6 are closed, the first drive motor 9 is then started. The output end of the first driving motor 8 drives the transmission rod 18 to rotate in a circle, thereby driving the multiple movable plates 19 to respectively drive a group of first net box trays 5 and second net box trays 6 to move up and down reciprocatingly. Since the spur rack 24 is fixed, the spur gear 25 is driven by the spur rack 24 to drive the rotating shaft 20 to rotate, thereby driving the rotating disk 7 to drive the closed first net box tray 5 and the second net box tray 6 to rotate in a circle, so that the materials inside can roll, thereby avoiding the accumulation of materials in one place to affect the freeze-drying effect, thereby improving the overall practicality of the device;

[0037] When the transmission rod 18 rotates, the first bevel gear 21 is driven by the second bevel gear 34 to drive the fixed rotating shaft 20 to rotate, thereby driving the top rotating disk 7 to rotate in a circle;

[0038] Since the transmission rod 18 is composed of multiple reciprocating screws, and the pitches of the double thread grooves arranged on the outer walls of the multiple reciprocating screws increase in an arithmetic progression from top to bottom, the vertically arranged rotating disk 7 of the transmission rod 18 is dispersed in an arithmetic progression during the downward movement, so that the first net box tray 5 and the second net box tray 6 can perform stable circular rotation.

[0039] Example 2

[0040] The toggle adjustment member is located on the inner side of the first net box tray 5 and the second net box tray 6, and is used to toggle the materials inside the first net box tray 5 and the second net box tray 6. The toggle adjustment member includes a plurality of trapezoidal push rods 12 arranged on the inner side of the first net box tray 5 and the second net box tray 6. The plurality of trapezoidal push rods 12 are fixedly connected by a movable rod 10. One end of the movable rod 10 penetrates the outer wall of the first net box tray 5 and is flush with the end of the first net box tray 5. A protective sleeve 15 is fixedly connected to the inner side of the first net box tray 5 and the second net box tray 6. A first circular ring 16 is fixedly connected to the outer wall of the movable rod 10, and the first circular ring 16 is arranged on the inner side of the protective sleeve 15. A connecting spring 17 is installed between the first circular ring 16 and the first net box tray 5 The toggle adjustment member also includes a power rod 22 slidably connected to the inner side of the rotating shaft 20, one end of the power rod 22 penetrates to the inner side of the rotating disk 7 and is fixedly connected to a T-shaped plate 27, and the outer wall of the T-shaped plate 27 is slidably connected to two rectangular push rods 30, one side of each of the two sliders 11 is fixedly connected to a connecting rod 29, one end of the rectangular push rod 30 penetrates to the outside of the connecting rod 29 and abuts against one side of the movable rod 10, and the rectangular push rod 30 is slidably connected to the connecting rod 29, the other end of the power rod 22 is fixedly connected to a spherical rod 26, the inner side of the movable plate 19 is fixedly connected to an oblique ring 23, and the end of the oblique ring 23 is provided with an arc-shaped inclined surface, the outer wall of the power rod 22 is fixedly connected to a second circular ring 31, and an auxiliary spring 32 is installed between the second circular ring 31 and the rotating shaft 20;

[0041] When the rotating shaft 20 rotates in a circle, it drives the spherical rod 26 to rotate in a circle, so that when the spherical rod 26 moves from the lowest point of the arc-shaped inclined surface at one end of the inclined ring 23 to the highest point, it pushes the spherical rod 26 to drive the power rod 22 to move toward the first net box tray 5, so that the movable rod 10 is pushed by the rectangular push rod 30 to drive the trapezoidal push rod 12 to move horizontally. When the spherical rod 26 moves from the highest point of the arc-shaped inclined surface at one end of the inclined ring 23 to the lowest point, the movable rod 10 is reset under the action of the connecting spring 17, so that the trapezoidal push rod 12 can move back and forth to move the material frozen on the first net box tray 5, thereby ensuring the subsequent rolling effect of the material.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field, comprising a support (1) and a freeze dryer (2) mounted on the top of the support (1), characterized in that: A tray rack (3), the tray rack (3) being installed inside the freeze dryer (2), the top of the tray rack (3) being fixedly connected to a support plate (4), a plurality of first net box trays (5) and a plurality of second net box trays (6) being arranged on the inner side of the support plate (4), a first net box tray (5) and a second net box tray (6) forming a group for assisting material turning, a turning mechanism for turning the material is arranged on one side of a group of the first net box tray (5) and the second net box tray (6); A floating regulator, located on the outer side of the support plate (4), and used to assist the material turning mechanism in performing a material turning operation; The shifting adjustment member is located inside the first net box tray (5) and the second net box tray (6), and is used to shift the materials inside the first net box tray (5) and the second net box tray (6).

2. The high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field according to claim 1, characterized in that: The floating regulator comprises a first driving motor (8) mounted at the bottom of the tray frame (3), the output end of the first driving motor (8) is connected to a transmission rod (18), and one end of the transmission rod (18) passes through the top of the tray frame (3) and is rotatably connected to the tray frame (3), a plurality of movable plates (19) are arranged on the inner side of the support plate (4), one of the movable plates (19) is fixedly connected to the support plate (4), and the remaining movable plates (19) are slidably connected to the support plate (4) and are mounted on the outer wall of the transmission rod (18), and a rotating disk (7) is arranged at one end of the movable plate (19).

3. The high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field according to claim 2, characterized in that: The transmission rod (18) is composed of a plurality of reciprocating screw rods, and the pitches of the double thread grooves arranged on the outer walls of the plurality of reciprocating screw rods increase in an arithmetic progression from top to bottom.

4. The high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field according to claim 2, characterized in that: The material turning mechanism comprises a rotating shaft (20) rotatably connected to the inner side of the movable plate (19), one end of the rotating shaft (20) being fixedly connected to the rotating disk (7), an outer wall of the rotating shaft (20) located on the movable plate (19) fixed to the inner side of the support plate (4) being fixedly connected to a first bevel gear (21), a top of the transmission rod (18) being fixedly connected to a second bevel gear (34) meshing with the first bevel gear (21), and the outer walls of the remaining rotating shafts (20) being fixedly connected to a spur gear (25), and a top of the tray rack (3) located on the inner side of the movable plate (19) being fixedly connected to a spur rack (24) meshing with the spur gear (25).

5. The high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field according to claim 4, characterized in that: The material turning mechanism further comprises a second drive motor (9) mounted on the top of the rotating disk (7); the output end of the second drive motor (9) is connected to a bidirectional threaded screw (28); two sliders (11) are mounted on the outer wall of the bidirectional threaded screw (28); and one side of each slider (11) is fixedly connected to a support plate (13); the two support plates (13) are respectively located on the top of the first net box tray (5) and the second net box tray (6); the outer wall of the bidirectional threaded screw (28) is provided with a positive thread and a negative thread; the two sliders (11) are respectively threadedly connected to the positive thread and the negative thread outer wall; and a limiting slide groove matching the two sliders (11) is provided on the inner side of the rotating disk (7).

6. The high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field according to claim 5, characterized in that: A T-shaped block (14) is fixedly connected to the bottom of the first net box tray (5) and the top of the second net box tray (6); a T-shaped slot matching the T-shaped block (14) is provided on the inner side of the support plate (13); the first net box tray (5) or the second net box tray (6) is slidably connected to the support plate (13) via the T-shaped block (14); and the T-shaped block (14) and the support plate (13) are fixedly connected via bolts (33).

7. The high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field according to claim 6, characterized in that: The toggle adjustment member comprises a plurality of trapezoidal push rods (12) arranged on the inner sides of the first net box tray (5) and the second net box tray (6); the plurality of trapezoidal push rods (12) are fixedly connected via a movable rod (10); one end of the movable rod (10) penetrates the outer wall of the first net box tray (5) and is flush with the end of the first net box tray (5); a protective sleeve (15) is fixedly connected to the inner sides of the first net box tray (5) and the second net box tray (6); a first circular ring (16) is fixedly connected to the outer wall of the movable rod (10), and the first circular ring (16) is arranged on the inner side of the protective sleeve (15); a connecting spring (17) is installed between the first circular ring (16) and the first net box tray (5).

8. The high-efficiency freeze dryer for removing water vapor based on a high-voltage electric field according to claim 7, characterized in that: The toggle adjustment member also includes a power rod (22) slidably connected to the inner side of the rotating shaft (20), one end of the power rod (22) passes through the inner side of the rotating disk (7) and is fixedly connected to a T-shaped plate (27), the outer wall of the T-shaped plate (27) is slidably connected to two rectangular push rods (30), one side of each of the two sliding blocks (11) is fixedly connected to a connecting rod (29), one end of the rectangular push rod (30) passes through the outside of the connecting rod (29) and abuts against one side of the movable rod (10), and the rectangular push rod (30) is slidably connected to the connecting rod (29), the other end of the power rod (22) is fixedly connected to a spherical rod (26), the inner side of the movable plate (19) is fixedly connected to an oblique ring (23), and the end of the oblique ring (23) is provided with an arc-shaped inclined surface, the outer wall of the power rod (22) is fixedly connected to a second circular ring (31), and an auxiliary spring (32) is installed between the second circular ring (31) and the rotating shaft (20).

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