A battery with protective function
By designing limit, pressure and protection mechanisms in the battery, using sliding blocks, connecting rods, driving components and sliders, the problem of battery protection in bumpy states is solved, and the safety and power control of the battery is achieved, avoiding the Damage and fire risk.
Patent Information
- Application Number
- CN202410384675.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2044-04-01
AI Technical Summary
The prior art cannot effectively protect the battery in a bumpy state, resulting in the battery potentially damaged or fire risk.
A battery is designed including a cover plate, a limiting mechanism, a pressure mechanism and a protection mechanism. The limiting mechanism locates and controls the battery output power when bumped through a sliding block and a spring mechanism. The pressure mechanism automatically passes through a connecting rod and a driving assembly. The battery is clamped and the protection mechanism avoids excessive squeezing of the battery through the press rod and slider mechanism.
It realizes protection against the battery in bumpy situations, avoids damage and fire risks, controls the battery output power, and ensures battery safety and stability.
Smart Images
Figure CN118137055B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of storage batteries, and in particular discloses a storage battery with a protection function. Background Art
[0002] As a device that can store and release electrical energy, batteries are widely used in power systems, transportation, electronic equipment and other fields. However, during use, batteries may be affected by factors such as overcharging, over-discharging, short circuit, overheating, etc., resulting in battery performance degradation, damage, and even safety issues such as fire. With the advancement of renewable energy and electrification trends, the demand and research and development of batteries with protective functions are also increasing. Technological innovation continues to promote the development of battery technology, so that the performance and safety of batteries with protective functions are continuously improved.
[0003] A Chinese invention patent with publication number CN114824609A discloses a new energy storage battery with a protective function. The technical solution of the invention is: it includes a base plate, a battery and two protective components, the protective components include two groups of limit members installed on the base plate, each group of the limit members includes two mounting plates fixedly installed on the top of the base plate, a tolerance plate is slidably installed on the base plate, each group of the limit members is provided with a preset track and a limit track, the two groups of the limit members are connected to a battery box by sliding up and down through the preset track and the limit track, and the battery is installed inside the battery box. However, the invention cannot protect the battery in a bumpy state, so a battery with a protective function is invented to address this defect. Summary of the invention
[0004] In view of the above technical problems, the technical solution adopted by the present invention is: a battery with a protective function, comprising a cover plate, a limiting mechanism, a pressing mechanism and a protective mechanism, the limiting mechanism comprising a battery, a mounting frame and a limiting assembly, the pressing mechanism comprising a second connecting rod and a moving assembly, the protective mechanism comprising a pressure rod and a driving assembly, the battery is slidably installed in the mounting frame, the limiting assembly is connected to the battery, the mounting frame is connected to the limiting assembly, the second connecting rod is connected to the cover plate, the moving assembly is connected to the limiting assembly, the pressure rod is connected to the cover plate, the cover plate is connected to the driving assembly, and the driving assembly is connected to the mounting frame.
[0005] Furthermore, the limiting assembly includes a first fixed block, two of which are provided, the two first fixed blocks are symmetrically fixedly installed inside the installation frame, the battery is slidably installed between the two first fixed blocks, two rectangular through holes are provided on the inner side of the installation frame, a movable block is slidably installed in the two rectangular through holes of the installation frame respectively, the movable blocks are symmetrically distributed on both sides of the battery, a support plate is fixedly installed on the lower part of the installation frame, a pillar is fixedly installed on the lower side of the support plate, and a bottom frame is fixedly installed on the lower side of the pillar.
[0006] Furthermore, a first turntable is rotatably installed on the lower side of the support plate, a fixed shaft is rotatably installed on the lower side of the first turntable, the fixed shaft is fixedly installed on the upper side of the bottom frame, two sections of first sliding grooves are provided on the first turntable, and a first moving rod is slidably installed on the inner wall of each first sliding groove, and each first moving rod is fixedly installed on the lower side of a moving block.
[0007] Furthermore, the first slide groove is an arc shape, a rotating rod is fixedly installed on the outer surface of the first moving rod, a first spring is wound on the outer surface of the fixed shaft, one end of the first spring is fixedly installed on the outer surface of the fixed shaft, and the other end of the fixed shaft is fixedly installed on the rotating rod, a second slide groove is provided on the side of the rotating rod, the second moving rod is slidably installed on the inner wall of the second slide groove, the first slider is fixedly installed on the lower side of the second moving rod, a third slide groove is provided on the side of the mounting frame, the first slider is slidably installed on the inner wall of the third slide groove, the first fixed shaft is fixedly installed on the inner wall of the third slide groove, the first slider is slidably installed on the outer surface of the first fixed shaft, the outer surface of the first fixed shaft is wound with a second spring, one end of the second spring is fixedly installed on the outer surface of the first fixed shaft, and the other end of the second spring is fixedly installed on the first slider.
[0008] Furthermore, a first connecting rod is rotatably mounted on the outer surface of the rotating rod, a sliding rheostat is fixedly mounted on the bottom frame, and a sliding part of the sliding rheostat is rotatably connected to the first connecting rod.
[0009] Furthermore, the bottom frame is hollow inside, and the moving assembly includes a second turntable, the second turntable is rotatably mounted inside the bottom frame, a counterweight block is fixedly mounted on the lower side of the second turntable, and the counterweight block is slidably mounted inside the bottom frame, a driving block is fixedly mounted on the upper side of the second turntable, and a movable frame is slidably mounted on the side of the driving block, and the movable frame is slidably mounted on the second turntable, a limiting rod is fixedly mounted inside the bottom frame, and the movable frame is slidably mounted on the limiting rod, and a first push rod and a second push rod are respectively fixedly mounted on both sides of the movable frame, and the sides of the first push rod and the second push rod are respectively slidably connected to a second connecting rod, and each side of the second connecting rod is rotatably mounted with a connecting shaft, and each second connecting rod is rotatably connected to a cover plate, and a second fixed block is fixedly mounted on the side of the connecting shaft, and the second fixed block is fixedly mounted on the side of the bottom frame.
[0010] Furthermore, the side surfaces of the installation frame are respectively provided with fourth slide grooves, and the driving assembly includes a follower rod, which is fixedly installed on the side surface of the cover plate, and an end shaft is rotatably installed on the side surface of the follower rod, and the end shaft is rotatably installed on the side surface of the cover plate, and a moving shaft is fixedly installed on the side surface of the follower rod, and the moving shaft is slidably installed on the inner wall of the fourth slide groove.
[0011] Furthermore, the side surfaces of the installation frame are respectively provided with fifth slide grooves, and a clamp block is slidably installed on the inner wall of the fifth slide groove, and the clamp block is slidably connected to the battery. The side surfaces of the clamp block are provided with inclined surfaces, and the height of the inclined surfaces of the side surfaces of the clamp block gradually decreases along the direction away from the battery. The moving axis is provided with an inclined surface toward the side surface of the clamp block, and the inclination of the inclined surface of the moving axis is equal to that of the inclined surface of the clamp block.
[0012] Furthermore, the protection mechanism also includes a vertical pole, which is fixedly mounted on the upper side of the support plate, a sixth slide groove is arranged on the side of the vertical pole, a second slider is slidably mounted on the inner wall of the sixth slide groove, an intermediate pole is fixedly mounted on the side of the second slider, a third connecting rod is rotatably mounted on the outer surface of the intermediate pole, the third connecting rod is rotatably connected to the end shaft, the pressure rod is fixedly mounted on the lower side of the second slider, and the pressure rod is slidably mounted on the inner wall of the sixth slide groove.
[0013] Compared with the prior art, the present invention has the following advantages: (1) the present invention protects the battery in the event of an impact, thereby preventing the battery from being damaged; (2) the present invention controls the battery output power according to the bumpy conditions, thereby preventing excessive power from damaging the battery; and (3) the present invention automatically clamps the battery in the event of a bumpy ride, thereby preventing the battery from falling loose. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0015] Figure 2 It is a schematic diagram of the structure of the limiting mechanism of the present invention.
[0016] Figure 3 It is a schematic diagram of the structure of the limiting component of the present invention.
[0017] Figure 4 It is a schematic diagram of the position relationship between the mounting frame and the bottom frame of the present invention.
[0018] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.
[0019] Figure 6 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.
[0020] Figure 7 It is a schematic diagram of the structure of the motion component of the present invention.
[0021] Figure 8 for Figure 7 Schematic diagram of the partial enlarged structure at point C in the middle.
[0022] Fig. 9 It is a schematic diagram of the position relationship between the clamping block and the moving axis of the present invention.
[0023] Fig.10 This is a schematic diagram of the driving assembly structure of the present invention.
[0024] Fig.11 for Fig.10 Schematic diagram of the local enlarged structure at point D in the middle.
[0025] 1-limiting mechanism; 2-cover plate; 3-pressing mechanism; 4-protection mechanism; 101-battery; 102-installation frame; 103-support plate; 104-pillar; 105-first turntable; 106-bottom frame; 107-first fixed block; 108-moving block; 109-first slide; 110-first moving rod; 111-fixed shaft; 112-rotating rod; 113-first spring; 114-second slide; 115-third slide; 116-first fixed shaft; 117-second spring; 118-second moving rod; 119-first slider; 120-first A connecting rod; 121-sliding rheostat; 301-a second connecting rod; 302-a second fixed block; 303-a connecting shaft; 304-a second turntable; 305-a counterweight block; 306-a moving frame; 307-a driving block; 308-a first push rod; 309-a second push rod; 310-a limiting rod; 401-a vertical rod; 402-a fourth slide slot; 403-a fifth slide slot; 404-a following rod; 405-a clamping block; 406-a moving shaft; 407-an end shaft; 408-a third connecting rod; 409-an intermediate rod; 410-a pressure rod; 411-a second sliding block; 412-a sixth slide slot. DETAILED DESCRIPTION
[0026] The technical solution of the present invention is further explained below in combination with and through specific implementation methods.
[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.
[0028] As attached Figure 1 ~Attached Figure 10 As shown in FIG. 1 , the limiting mechanism 1 includes a battery 101, a mounting frame 102 and a limiting assembly, the pressing mechanism 3 includes a second connecting rod 301 and a moving assembly, the protection mechanism 4 includes a pressure rod 410 and a driving assembly, the battery 101 is slidably installed in the mounting frame 102, the limiting assembly is connected to the battery 101, the mounting frame 102 is connected to the limiting assembly, the second connecting rod 301 is connected to the cover plate 2, the moving assembly is connected to the limiting assembly, the pressure rod 410 is connected to the cover plate 2, the cover plate 2 is connected to the driving assembly, and the driving assembly is connected to the mounting frame 102.
[0029] As attached Figure 1 ~Attached Figure 10As shown in FIG. 1 , the limit assembly includes a first fixed block 107, two first fixed blocks 107 are provided, and the two first fixed blocks 107 are symmetrically fixedly installed inside the installation frame 102, and the battery 101 is slidably installed between the two first fixed blocks 107. Two rectangular through holes are provided on the inner side of the installation frame 102, and a moving block 108 is slidably installed in the two rectangular through holes of the installation frame 102, respectively. The moving blocks 108 are symmetrically distributed on both sides of the battery 101, and the lower part of the installation frame 102 is fixedly installed with a support The support plate 103 is provided with a support column 104 fixedly mounted on the lower side of the support plate 103, and a bottom frame 106 is fixedly mounted on the lower side of the support column 104; a first turntable 105 is rotatably mounted on the lower side of the support plate 103, and a fixed shaft 111 is rotatably mounted on the lower side of the first turntable 105, and the fixed shaft 111 is fixedly mounted on the upper side of the bottom frame 106, and two sections of first slide grooves 109 are arranged on the first turntable 105, and a first moving rod 110 is slidably mounted on the inner wall of each first slide groove 109, and each first moving rod 110 is fixedly mounted The first sliding groove 109 is in an arc shape, a rotating rod 112 is fixedly installed on the outer surface of the first moving rod 110, a first spring 113 is wound around the outer surface of the fixed shaft 111, one end of the first spring 113 is fixedly installed on the outer surface of the fixed shaft 111, and the other end of the fixed shaft 111 is fixedly installed on the rotating rod 112, a second sliding groove 114 is provided on the side of the rotating rod 112, a second moving rod 118 is slidably installed on the inner wall of the second sliding groove 114, and a first spring 113 is fixedly installed on the lower side of the second moving rod 118. A slider 119, a third slide groove 115 is set on the side of the mounting frame 102, the first slider 119 is slidably installed on the inner wall of the third slide groove 115, and a first fixed shaft 116 is fixedly installed on the inner wall of the third slide groove 115. The first slider 119 is slidably installed on the outer surface of the first fixed shaft 116, and a second spring 117 is wound around the outer surface of the first fixed shaft 116. One end of the second spring 117 is fixedly installed on the outer surface of the first fixed shaft 116, and the other end of the second spring 117 is fixedly installed on the first slider 119.
[0030] As attached Figure 1 ~Attached Figure 10 As shown in FIG. 1 , a first connecting rod 120 is rotatably mounted on the outer surface of the rotating rod 112 , a sliding rheostat 121 is fixedly mounted on the bottom frame 106 , and a sliding portion of the sliding rheostat 121 is rotatably connected to the first connecting rod 120 .
[0031] As attached Figure 1 ~Attached Figure 10As shown in FIG. 1 , the bottom frame 106 is hollow inside, and the motion assembly includes a second turntable 304, which is rotatably mounted inside the bottom frame 106, a counterweight block 305 is fixedly mounted on the lower side of the second turntable 304, and the counterweight block 305 is slidably mounted inside the bottom frame 106, a driving block 307 is fixedly mounted on the upper side of the second turntable 304, and a moving frame 306 is slidably mounted on the side of the driving block 307, and the moving frame 306 is slidably mounted on the second turntable 306, and a limit rod 310 is fixedly mounted inside the bottom frame 106. The frame 306 is slidably installed on the limit rod 310, and the first top rod 308 and the second top rod 309 are fixedly installed on both sides of the movable frame 306. The sides of the first top rod 308 and the second top rod 309 are respectively slidably connected to a second connecting rod 301, and each second connecting rod 301 has a connecting shaft 303 rotatably installed on the side, and each second connecting rod 301 is rotatably connected to a cover plate 2, and a second fixed block 302 is fixedly installed on the side of the connecting shaft 303, and the second fixed block 302 is fixedly installed on the side of the bottom frame 106.
[0032] As attached Figure 1 ~Attached Figure 10 As shown in FIG. 1 , the side of the installation frame 102 is respectively provided with a fourth slide groove 402, and the driving assembly includes a follower rod 404, the follower rod 404 is fixedly installed on the side of the cover plate 2, and the end shaft 407 is rotatably installed on the side of the follower rod 404, and the end shaft 407 is rotatably installed on the side of the cover plate 2, and the side of the follower rod 404 is fixedly installed with a moving shaft 406, and the moving shaft 406 is slidably installed on the inner wall of the fourth slide groove 402; the side of the installation frame 102 is respectively provided with a fifth slide groove 403, and the inner wall of the fifth slide groove 403 is slidably installed with a clamping block 405, and the clamping block 405 is slidably connected to the battery 101, and the side of the clamping block 405 is provided with an inclined surface, and the inclined surface of the side of the clamping block 405 is along the direction away from the battery 101 The height gradually decreases, and the moving shaft 406 is provided with an inclined surface toward the side of the clamping block 405, and the inclination of the inclined surface of the moving shaft 406 is equal to the inclination of the inclined surface of the clamping block 405; the protection mechanism 4 also includes a vertical rod 401, the vertical rod 401 is fixedly installed on the upper side of the support plate 103, and a sixth slide groove 412 is provided on the side of the vertical rod 401, and a second slider 411 is slidably installed on the inner wall of the sixth slide groove 412, and an intermediate rod 409 is fixedly installed on the side of the second slider 411, and a third connecting rod 408 is rotatably installed on the outer surface of the intermediate rod 409, and the third connecting rod 408 is rotatably connected to the end shaft 407, and a pressure rod 410 is fixedly installed on the lower side of the second slider 411, and the pressure rod 410 is slidably installed on the inner wall of the sixth slide groove 412.
[0033] The working principle of a storage battery with a protection function disclosed by the present invention is as follows.
[0034] (i) When hit or shaken suddenly, the first slider 119 slides along the inner wall of the third slide groove 115. At this time, the first slider 119 drives the second moving rod 118 to move. The second moving rod 118 drives the rotating rod 112 to move through the second slide groove 114. The rotating rod 112 drives the first turntable 105 to rotate. When the first turntable 105 rotates, it drives the first slide groove 109 to move. When the first slide groove 109 moves, it drives the first moving rod 110 to move. The first moving rod 110 drives the moving block 108 to move, and the battery 101 is positioned by the moving block 108. At this time, the rotating rod 112 drives the first connecting rod 120 to move. The first connecting rod 120 drives the sliding part of the sliding rheostat 121 to move, and the output power of the battery 101 is reduced by the sliding rheostat 121.
[0035] (ii) When the swing occurs, the second turntable 304 rotates under the action of the counterweight block 305, and the second turntable 304 rotates, and the driving block 307 moves when the second turntable 304 rotates, and the driving block 307 drives the movable frame 306 to slide along the limit rod 310, and the movable frame 306 drives the first push rod 308 and the second push rod 309 to move, and the first push rod 308 or the second push rod 309 drives the second connecting rod 301 to rotate, and the second connecting rod 301 drives the cover plate 2 to move and clamp the battery 101, and the cover plate 2 drives the following rod 404 to slide along the fourth slide groove 402, and the following rod 404 drives the moving shaft 406 to move, and the moving shaft 406 drives the clamping block 405 to move, and the battery 101 is tightened by the clamping block 405.
[0036] (iii) When the follower rod 404 moves, it drives the third connecting rod 408 to move, the third connecting rod 408 drives the middle rod 409 to move, the middle rod 409 drives the second slider 411 to slide along the sixth slide groove 412, and the second slider 411 drives the pressure rod 410 to move upward, so that the pressure rod 410 is separated from the battery 101, thereby avoiding excessive squeezing of the battery 101.
Claims
1. A storage battery with a protective function, comprising a cover plate (2), characterized in that: A storage battery with a protective function further comprises a limiting mechanism (1), a pressing mechanism (3) and a protective mechanism (4); the limiting mechanism (1) comprises a storage battery (101), a mounting frame (102) and a limiting assembly; the pressing mechanism (3) comprises a second connecting rod (301) and a moving assembly; the protective mechanism (4) comprises a pressing rod (410) and a driving assembly; the storage battery (101) is slidably mounted in the mounting frame (102); the limiting assembly is connected to the storage battery (101); the mounting frame (102) is connected to the limiting assembly; the second connecting rod (301) is connected to a cover plate (2); the moving assembly is connected to the limiting assembly; the pressing rod (410) is connected to the cover plate (2); the cover plate (2) is connected to the driving assembly; and the driving assembly is connected to the mounting frame (102); The limiting assembly comprises a first fixed block (107), two first fixed blocks (107) are provided, the two first fixed blocks (107) are symmetrically fixedly installed inside the installation frame (102), the storage battery (101) is slidably installed between the two first fixed blocks (107), the installation frame (102) is provided with two rectangular through holes inside, a moving block (108) is slidably installed in the two rectangular through holes of the installation frame (102), the moving blocks (108) are symmetrically distributed on both sides of the storage battery (101), a support plate (103) is fixedly installed on the lower part of the installation frame (102), a pillar (104) is fixedly installed on the lower side of the support plate (103), and a bottom frame (106) is fixedly installed on the lower side of the pillar (104); A first rotating disk (105) is rotatably mounted on the lower side of the support plate (103); a fixed shaft (111) is rotatably mounted on the lower side of the first rotating disk (105); the fixed shaft (111) is fixedly mounted on the upper side of the bottom frame (106); two sections of first sliding grooves (109) are provided on the first rotating disk (105); a first moving rod (110) is slidably mounted on the inner wall of each of the first sliding grooves (109); and each of the first moving rods (110) is fixedly mounted on the lower side of a moving block (108); The first slide groove (109) is in an arc shape, a rotating rod (112) is fixedly installed on the outer surface of the first moving rod (110), a first spring (113) is wound around the outer surface of the fixed shaft (111), one end of the first spring (113) is fixedly installed on the outer surface of the fixed shaft (111), and the other end of the fixed shaft (111) is fixedly installed on the rotating rod (112), a second slide groove (114) is arranged on the side of the rotating rod (112), a second moving rod (118) is slidably installed on the inner wall of the second slide groove (114), and a first sliding block (114) is fixedly installed on the lower side of the second moving rod (118). 9), a third slide groove (115) is provided on the side of the installation frame (102), the first slider (119) is slidably mounted on the inner wall of the third slide groove (115), a first fixed shaft (116) is fixedly mounted on the inner wall of the third slide groove (115), the first slider (119) is slidably mounted on the outer surface of the first fixed shaft (116), a second spring (117) is wound around the outer surface of the first fixed shaft (116), one end of the second spring (117) is fixedly mounted on the outer surface of the first fixed shaft (116), and the other end of the second spring (117) is fixedly mounted on the first slider (119).
2. A storage battery with a protective function according to claim 1, characterized in that: A first connecting rod (120) is rotatably mounted on the outer surface of the rotating rod (112), a sliding rheostat (121) is fixedly mounted on the bottom frame (106), and a sliding portion of the sliding rheostat (121) is rotatably connected to the first connecting rod (120).
3. A storage battery with a protective function according to claim 1, characterized in that: The bottom frame (106) is hollow inside, and the motion assembly comprises a second rotating disk (304), the second rotating disk (304) is rotatably mounted inside the bottom frame (106), a counterweight block (305) is fixedly mounted on the lower side of the second rotating disk (304), and the counterweight block (305) is slidably mounted inside the bottom frame (106), a driving block (307) is fixedly mounted on the upper side of the second rotating disk (304), a moving frame (306) is slidably mounted on the side of the driving block (307), and the moving frame (306) is slidably mounted on the second rotating disk (304), and a limiting rod (310) is fixedly mounted inside the bottom frame (106). The movable frame (306) is slidably mounted on the limit rod (310); a first push rod (308) and a second push rod (309) are fixedly mounted on both sides of the movable frame (306); the side surfaces of the first push rod (308) and the second push rod (309) are slidably connected to a second connecting rod (301) respectively; a connecting shaft (303) is rotatably mounted on the side surface of each second connecting rod (301); each second connecting rod (301) is rotatably connected to a cover plate (2); a second fixed block (302) is fixedly mounted on the side surface of the connecting shaft (303); and the second fixed block (302) is fixedly mounted on the side surface of the bottom frame (106).
4. A storage battery with a protective function according to claim 3, characterized in that: The side surfaces of the installation frame (102) are respectively provided with fourth slide grooves (402), and the driving assembly includes a follower rod (404), the follower rod (404) is fixedly installed on the side surface of the cover plate (2), an end shaft (407) is rotatably installed on the side surface of the follower rod (404), the end shaft (407) is rotatably installed on the side surface of the cover plate (2), a moving shaft (406) is fixedly installed on the side surface of the follower rod (404), and the moving shaft (406) is slidably installed on the inner wall of the fourth slide groove (402).
5. A storage battery with protection function according to claim 4, characterized in that: The side surfaces of the installation frame (102) are respectively provided with fifth slide grooves (403), and a clamping block (405) is slidably installed on the inner wall of the fifth slide groove (403), and the clamping block (405) is slidably connected to the battery (101). The side surfaces of the clamping block (405) are provided with inclined surfaces, and the height of the inclined surfaces of the side surfaces of the clamping block (405) gradually decreases in a direction away from the battery (101). The moving shaft (406) is provided with an inclined surface toward the side surface of the clamping block (405), and the inclination of the inclined surface of the moving shaft (406) is equal to that of the inclined surface of the clamping block (405).
6. A storage battery with a protective function according to claim 4, characterized in that: The protection mechanism (4) further comprises a vertical rod (401), wherein the vertical rod (401) is fixedly mounted on the upper side of the support plate (103), a sixth slide groove (412) is arranged on the side of the vertical rod (401), a second slider (411) is slidably mounted on the inner wall of the sixth slide groove (412), an intermediate rod (409) is fixedly mounted on the side of the second slider (411), a third connecting rod (408) is rotatably mounted on the outer surface of the intermediate rod (409), the third connecting rod (408) is rotatably connected to the end shaft (407), and the pressure rod (410) is fixedly mounted on the lower side of the second slider (411), and the pressure rod (410) is slidably mounted on the inner wall of the sixth slide groove (412).