Thermal insulation shed capable of being quickly disassembled and assembled

By designing push parts and movable abutment structure in the insulation shed, the problem of difficulty in cleaning dust and snow on the roof is solved, the light and convenience of use are improved, and the weight of the roof is reduced.

CN222216620UActive Publication Date: 2024-12-24SHANGHAI GUANHUI NEW MATERIAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421028610.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-13
Publication Date
2024-12-24
Estimated Expiration
2034-05-13

AI Technical Summary

Technical Problem

The existing heat-insulated shed roof that can be quickly removed and installed is not easy to clean, resulting in accumulation of dust and rain and snow, causing shading and weight burden, affecting crop growth and convenience of use.

Method used

A structure including a base, insulation, frame, cleaning member and pusher is designed. The pusher drives the rotating plate to rotate, clean up dust or snow, and designs through the moving contact between the frame and insulation, which is convenient. Installation and disassembly.

Benefits of technology

It effectively avoids the accumulation of dust to block the light, improves the light level in the shed, is conducive to crop growth, and reduces the weight burden on the roof, making it convenient for use and maintenance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222216620U_ABST
    Figure CN222216620U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of heat preservation sheds, in particular to a heat preservation shed capable of being quickly disassembled and assembled, which comprises a base, the top of the base is movably abutted against the bottom of a heat preservation part, the inner bottom wall of the base is movably abutted against the bottom of a frame part, and when a worker needs to clean dust or accumulated snow, a push block is pushed to drive a push rod to move upwards, so that the worker can clean the dust or accumulated snow. A connecting rod transmits thrust borne by a push rod to a transmission rod, the transmission rod pushes a guide block to further push a left rotating plate and a right rotating plate, a sliding block transmits linear motion of the guide block to a rotating shaft to enable the rotating shaft to rotate around the axis of a fixed rod, and meanwhile the left rotating plate and the right rotating plate rotate around the axis of the fixed rod. Dust or accumulated snow on the top slides down from the two sides of the heat preservation shed, the situation that dust accumulation blocks the interior of the shed is avoided, the illumination level in the shed is improved, photosynthesis and growth of crops are facilitated, rain and snow can be prevented from being accumulated on the shed roof, the weight burden of the shed roof is relieved, and people can use the greenhouse conveniently.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of heat preservation sheds, in particular to a heat preservation shed that can be quickly dismantled and installed. Background Art

[0002] With the advancement of agricultural technology, the requirements for agricultural production environment are getting higher and higher. Especially in areas with changeable climate or poor environmental conditions, heat preservation sheds have become key facilities to ensure the normal growth of crops. The development of material science and engineering technology has also optimized the materials and structures of heat preservation sheds. The application of new materials makes heat preservation sheds lighter and more durable, while advanced structural design improves the stability and wind resistance of heat preservation sheds. The integration and application of these technologies have made heat preservation sheds that can be quickly dismantled and installed widely used in agricultural production.

[0003] At present, the roofs of most of the insulation sheds on the market that can be quickly dismantled and installed are not easy for people to clean. Dust accumulation will block the inside of the shed, and in rainy and snowy weather, the roof may be overloaded and cause the insulation shed to collapse, causing inconvenience to people's use. Utility Model Content

[0004] The purpose of the utility model is to provide a heat preservation shed that can be quickly dismantled and installed, so as to solve the problem that the roof of the heat preservation shed is not easy for people to clean as mentioned in the above background technology. To achieve the above purpose, the utility model provides the following technical solution: a heat preservation shed that can be quickly dismantled and installed, comprising a base, the top of the base movably abuts against the bottom of the heat preservation member, and the inner bottom wall of the base movably abuts against the bottom of the frame member.

[0005] The top of the frame member is movably abutted against the bottom of the cleaning member, and the bottom of the cleaning member is fixedly connected to the top of the pushing member.

[0006] Preferably, the base consists of four legs, a bottom plate and two threaded columns, and the tops of the four legs are fixedly connected to the bottom of the bottom plate, the four legs are distributed in a ring shape at equal distances, and the inner wall of the bottom plate is respectively threadedly connected to the outer walls of the two threaded columns, and an outer plate groove and an inner plate groove are respectively opened at the tops of both sides of the bottom plate.

[0007] Preferably, the thermal insulation component includes an outer baffle, an insulation plate and an inner baffle, and the number of the outer baffle, the insulation plate and the inner baffle are two each, one side of the two outer baffles are movably abutted against one side of the two insulation plates, and the other side of the two insulation plates are movably abutted against one side of the two inner baffles, the outer walls of the two outer baffles close to the bottom are movably abutted against the inner walls of the two outer plate grooves, and the outer walls of the two inner baffles close to the bottom are movably abutted against the inner walls of the two inner plate grooves, and the bottoms of the two insulation plates are movably abutted against the top of the bottom plate.

[0008] Preferably, the frame member is composed of two baffles, two sliding strips, a top plate, a door panel, a limit strip, two sliding balls and an armrest block, and the tops of the two baffles are respectively fixedly connected to the bottoms of the two sliding strips, the top plate is respectively provided with a guide groove at the bottom near the front and back sides, and the outer walls of the two sliding strips are respectively slidably connected to the inner walls of the two guide grooves, the baffle near the front is provided with a working cavity, and the inner wall of the working cavity is slidably connected to the outer wall of the door panel, a limit strip is provided on the side of the door panel away from the working cavity, and the bottom of the door panel is respectively fixedly connected to the tops of the two sliding balls, an armrest block is provided on the front side of the limit strip, and a working groove is provided at the center of the top plate, grooves are provided on both sides of the top plate, and the inner walls of the two grooves are respectively movably abutted against the outer walls of the outer baffle and the inner baffle near the top, the bottoms of the two sliding balls are both slidably connected to the inner bottom wall of the bottom plate, and the inner top walls of the two baffles are respectively movably abutted against the tops of the two threaded columns, and the bottoms of the two baffles are movably abutted against the inner bottom wall of the bottom plate.

[0009] Preferably, the cleaning component includes four fixed blocks, two fixed rods, a left rotating plate and a right rotating plate, and the two fixed blocks and one fixed rod form a group, the inner walls of the two groups of fixed blocks are fixedly connected to the outer walls of the fixed rods close to both ends, and the outer walls of the two groups of fixed rods away from both ends are rotatably connected to the inner walls of the left rotating plate and the right rotating plate respectively, the top of one side of the left rotating plate is movably abutted with the bottom of one side of the right rotating plate, and the bottoms of the four fixed blocks are fixedly connected to the top of the top plate, and the bottoms of the left rotating plate and the right rotating plate are movably abutted with the top of the top plate.

[0010] Preferably, the pushing member is composed of a guide block, a sliding block, a rotating shaft, a transmission rod, a connecting rod, a pushing rod and a pushing block, and the number of the guide block, the sliding block, the rotating shaft and the transmission rod is two. The two guide blocks are each provided with a sliding groove, and the inner walls of the two sliding grooves are slidingly connected to the outer walls of the two sliding blocks, respectively, the inner walls of the two sliding blocks are rotatably connected to the outer walls at both ends of the two rotating shafts, and the outer walls of the two rotating shafts are rotatably connected to the inner walls of the two transmission rods, respectively, the bottom ends of the two transmission rods are fixedly connected to the tops on both sides of the connecting rod, and the bottom of the connecting rod away from the two sides is fixedly connected to the top of the pushing rod, the bottom end of the pushing rod is fixedly connected to the top of the pushing block, and the two transmission rods pass through the working groove, and the tops of the two guide blocks are fixedly connected to the bottoms of the left rotating plate and the right rotating plate, respectively.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model discloses that when the staff needs to clean the dust or snow, they push the pushing block to drive the pushing rod to move upward, the connecting rod transmits the thrust received by the pushing rod to the transmission rod, the transmission rod pushes the guide block and then pushes the left rotating plate and the right rotating plate, the sliding block transmits the linear motion of the guide block to the rotating shaft to make it rotate around the axis of the fixed rod, and at the same time the left rotating plate and the right rotating plate rotate around the axis of the fixed rod, so that the dust or snow on the top slides down from both sides of the heat preservation shed, avoiding the shading of the shed by the accumulation of dust, thereby improving the light level in the shed, which is beneficial to the photosynthesis and growth of crops, and can avoid the accumulation of rain and snow on the roof, reduce the weight burden of the roof, and facilitate people's use.

[0013] In the utility model, during installation, the outer baffle plate and the inner baffle plate can be conveniently inserted into the bottom plate through the outer plate groove and the inner plate groove. After the insertion, the groove of the top plate is placed on the outer baffle plate and the inner baffle plate. The baffle plate moves along the direction of the guide groove under the drive of the sliding bar. After being pushed to the bottom, the threaded column is rotated to make it contact with the baffle plate to prevent the baffle plate from sliding after installation. The heat preservation shed can be conveniently disassembled and reassembled, which is convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is an exploded view of the utility model;

[0017] Figure 4 It is an exploded view of the pushing member in the utility model.

[0018] In the figure: 1. base; 101. support foot; 102. bottom plate; 103. threaded column; 2. thermal insulation member; 201. outer baffle; 202. heat insulation board; 203. inner baffle; 3. frame member; 301. shield; 302. sliding bar; 303. top plate; 304. door panel; 305. limit bar; 306. sliding ball; 307. handrail block; 4. cleaning member; 401. fixed block; 402. fixed rod; 403. left rotating plate; 404. right rotating plate; 5. pushing member; 501. guide block; 502. sliding block; 503. rotating shaft; 504. transmission rod; 505. connecting rod; 506. pushing rod; 507. pushing block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4 The utility model provides a technical solution: a heat preservation shed that can be quickly dismantled and installed, comprising a base 1, the top of the base 1 is movably abutted against the bottom of a heat preservation member 2, and the inner bottom wall of the base 1 is movably abutted against the bottom of a frame member 3.

[0021] The top of the frame member 3 is movably abutted against the bottom of the cleaning member 4 , and the bottom of the cleaning member 4 is fixedly connected to the top of the pushing member 5 .

[0022] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the base 1 is composed of four legs 101, a bottom plate 102 and two threaded columns 103, and the tops of the four legs 101 are fixedly connected to the bottom of the bottom plate 102, the four legs 101 are distributed in a ring at equal distances, and the inner wall of the bottom plate 102 is threadedly connected to the outer walls of the two threaded columns 103, respectively, and an outer plate groove and an inner plate groove are respectively provided on the tops of both sides of the bottom plate 102, and the legs 101 are in contact with the ground, ensuring the stability of the insulation shed.

[0023] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the thermal insulation component 2 includes an outer baffle 201, an insulation board 202 and an inner baffle 203, and the number of the outer baffle 201, the insulation board 202 and the inner baffle 203 are all two, one side of the two outer baffles 201 is movably abutted with one side of the two insulation boards 202, and the other side of the two insulation boards 202 is movably abutted with one side of the two inner baffles 203, the outer walls of the two outer baffles 201 near the bottom are movably abutted with the inner walls of the two outer plate grooves, and the outer walls of the two inner baffles 203 near the bottom are movably abutted with the inner walls of the two inner plate grooves, the bottoms of the two insulation boards 202 are movably abutted with the top of the bottom plate 102, the outer baffle 201 and the inner baffle 203 resist the influence of the external environment on the insulation boards 202, the outer baffle 201 and the inner baffle 203 can be conveniently installed on the bottom plate 102 by abutting, and can be conveniently disassembled and reassembled when the insulation boards need to be replaced.

[0024] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the frame member 3 is composed of two shielding plates 301, two sliding bars 302, a top plate 303, a door panel 304, a limiting strip 305, two sliding balls 306 and an armrest block 307, and the tops of the two shielding plates 301 are respectively fixedly connected to the bottoms of the two sliding bars 302, a guide groove is respectively provided at the bottom of the top plate 303 near the front and back sides, and the outer walls of the two sliding bars 302 are respectively slidably connected to the inner walls of the two guide grooves, the shielding plate 301 near the front side is provided with a working cavity, and the inner wall of the working cavity is slidably connected to the outer wall of the door panel 304, a limiting strip 305 is provided on the side of the door panel 304 away from the working cavity, and the bottom of the door panel 304 is respectively fixedly connected to the tops of the two sliding balls 306, an armrest block 307 is provided on the front side of the limiting strip 305, and the center of the top plate 303 A working groove is provided at the top, grooves are provided on both sides of the top plate 303, and the inner walls of the two grooves are movably abutted against the outer walls of the outer baffle plate 201 and the inner baffle plate 203 near the top, respectively, the bottoms of the two sliding balls 306 are slidably connected to the inner bottom wall of the bottom plate 102, and the inner top walls of the two baffles 301 are movably abutted against the tops of the two threaded columns 103, respectively, and the bottoms of the two baffles 301 are movably abutted against the inner bottom wall of the bottom plate 102, the sliding bar 302 can slide in the guide groove, thereby driving the baffle 301 to move along the direction of the guide groove, so that the baffle can be conveniently installed between the bottom plate 102 and the top plate 303, and the armrest block 307 is installed on the front of the limit bar 305, which is convenient for people to pull the door panel 304 to move left and right, and the limit bar 305 ensures that the door panel 304 will not slide out of the working cavity when moving.

[0025] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the cleaning member 4 includes four fixed blocks 401, two fixed rods 402, a left rotating plate 403 and a right rotating plate 404, and the two fixed blocks 401 and one fixed rod 402 form a group, the inner walls of the two groups of fixed blocks 401 are fixedly connected to the outer walls of the fixed rods 402 near both ends, and the outer walls of the two groups of fixed rods 402 away from both ends are rotatably connected to the inner walls of the left rotating plate 403 and the right rotating plate 404 respectively, the top of one side of the left rotating plate 403 is movably abutted against the bottom of one side of the right rotating plate 404, and the bottoms of the four fixed blocks 401 are fixedly connected to the top of the top plate 303, the left rotating plate 403 is rotatably abutted against the bottom of one side of the right rotating plate 404, and the bottoms of the four fixed blocks 401 are fixedly connected to the top of the top plate 303, The bottoms of the movable plate 403 and the right rotating plate 404 are movably abutted against the top of the top plate 303. After the insulation shed has been used for a long time or in rainy and snowy weather, dust or snow may accumulate on the top of the left rotating plate 403 and the right rotating plate 404. The left rotating plate 403 and the right rotating plate 404 can rotate around the axis of the fixed rod 402 to slide the dust or snow on the top down from both sides of the insulation shed, thereby avoiding dust accumulation and obstruction to the interior of the shed, thereby improving the light level in the shed, which is beneficial to the photosynthesis and growth of crops, and can avoid rain and snow accumulating on the roof of the shed, reducing the weight burden of the roof, and making it convenient for people to use.

[0026] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the pushing member 5 is composed of a guide block 501, a sliding block 502, a rotating shaft 503, a transmission rod 504, a connecting rod 505, a pushing rod 506 and a pushing block 507, and the number of the guide block 501, the sliding block 502, the rotating shaft 503 and the transmission rod 504 are all two, the two guide blocks 501 are each provided with a sliding groove, and the inner walls of the two sliding grooves are respectively slidably connected to the outer walls of the two sliding blocks 502, the inner walls of the two sliding blocks 502 are respectively rotatably connected to the outer walls at both ends of the two rotating shafts 503, and the outer walls of the two rotating shafts 503 are respectively rotatably connected to the inner walls of the two transmission rods 504, the bottom ends of the two transmission rods 504 are respectively fixedly connected to the tops on both sides of the connecting rod 505, and the bottom of the connecting rod 505 away from the two sides is fixedly connected to the top of the pushing rod 506, the bottom end of the pushing rod 506 is fixedly connected to the top of the pushing block 507, and the two transmission rods 504 pass through the working groove. The top of block 501 is fixedly connected to the bottom of the left rotating plate 403 and the right rotating plate 404 respectively. When the staff needs to clean dust or snow, they push the pushing block 507 to drive the pushing rod 506 to move upward, and the connecting rod 505 transmits the thrust exerted on the pushing rod 506 to the transmission rod 504. The transmission rod 504 pushes the guide block 501 and then pushes the left rotating plate 403 and the right rotating plate 404. The sliding block 502 transmits the linear motion of the guide block 501 to the rotating shaft to make it rotate around the axis of the fixed rod 402. At the same time, the left rotating plate 403 and the right rotating plate 404 rotate around the axis of the fixed rod 402, so that the dust or snow on the top slides down from both sides of the insulation shed, avoiding the blocking of light in the shed by dust accumulation, thereby improving the light level in the shed, which is beneficial to the photosynthesis and growth of crops, and can avoid the accumulation of rain and snow on the roof, reduce the weight burden of the roof, and facilitate people's use.

[0027] The use method and advantages of the utility model: When the insulation shed that can be quickly dismantled and installed is working, the working process is as follows:

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, when the staff needs to clean the dust or snow, they push the pushing block 507 to drive the pushing rod 506 to move upward, and the connecting rod 505 transmits the thrust exerted on the pushing rod 506 to the transmission rod 504, and the transmission rod 504 pushes the guide block 501 and then pushes the left rotating plate 403 and the right rotating plate 404, and the sliding block 502 transmits the linear motion of the guide block 501 to the rotating shaft to make it rotate around the axis of the fixed rod 402, and at the same time, the left rotating plate 403 and the right rotating plate 404 rotate around the axis of the fixed rod 402, so that the dust or snow on the top slides down from both sides of the insulation shed, avoiding the blocking of light in the shed by dust accumulation, thereby improving the light level in the shed, which is beneficial to the photosynthesis and growth of crops, and can avoid the accumulation of rain and snow on the roof, reduce the weight burden of the roof, and facilitate people's use. During installation, the outer baffle plate 201 and the inner baffle plate 203 can be easily inserted into the bottom plate 102 through the outer plate groove and the inner plate groove. After insertion, the groove of the top plate 303 is placed on the outer baffle plate 201 and the inner baffle plate 203. The shield plate 301 moves along the direction of the guide groove driven by the sliding bar 302. After being pushed to the bottom, the threaded column 103 is rotated to make it contact with the shield plate 301 to prevent the shield plate 301 from sliding after installation. The insulation shed can be easily disassembled and reassembled, which is convenient for people to use.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat preservation shed that can be quickly dismantled and installed, comprising a base (1), characterized in that: The top of the base (1) is movably abutted against the bottom of the heat-insulating component (2), and the inner bottom wall of the base (1) is movably abutted against the bottom of the frame component (3); The top of the frame member (3) is movably abutted against the bottom of the cleaning member (4), and the bottom of the cleaning member (4) is fixedly connected to the top of the pushing member (5).

2. The thermal insulation shed that can be quickly dismantled and installed according to claim 1 is characterized in that: The base (1) is composed of four supporting legs (101), a bottom plate (102) and two threaded columns (103), and the tops of the four supporting legs (101) are fixedly connected to the bottom of the bottom plate (102), the four supporting legs (101) are distributed in a ring shape at equal distances, and the inner wall of the bottom plate (102) is respectively threadedly connected to the outer walls of the two threaded columns (103), and the tops of both sides of the bottom plate (102) are respectively provided with an outer plate groove and an inner plate groove.

3. The quick-dismantling and installable heat preservation shed according to claim 2, characterized in that: The thermal insulation component (2) comprises an outer baffle (201), a heat insulation plate (202) and an inner baffle (203), and the number of the outer baffle (201), the heat insulation plate (202) and the inner baffle (203) is two each, one side of the two outer baffles (201) is movably abutted against one side of the two heat insulation plates (202), and the other side of the two heat insulation plates (202) is movably abutted against one side of the two inner baffles (203), the outer walls of the two outer baffles (201) close to the bottom are movably abutted against the inner walls of the two outer plate grooves, and the outer walls of the two inner baffles (203) close to the bottom are movably abutted against the inner walls of the two inner plate grooves, and the bottoms of the two heat insulation plates (202) are movably abutted against the top of the bottom plate (102).

4. The thermal insulation shed that can be quickly dismantled and installed according to claim 2 is characterized in that: The frame member (3) is composed of two shielding plates (301), two sliding bars (302), a top plate (303), a door panel (304), a limit bar (305), two sliding balls (306) and an armrest block (307), and the tops of the two shielding plates (301) are respectively fixedly connected to the bottoms of the two sliding bars (302), the bottoms of the top plate (303) close to the front and back sides are respectively provided with a guide groove, and the outer walls of the two sliding bars (302) are respectively slidably connected to the inner walls of the two guide grooves, the shielding plate (301) close to the front side is provided with a working cavity, and the inner wall of the working cavity is slidably connected to the outer wall of the door panel (304), and the side of the door panel (304) away from the working cavity is provided with a limit bar (305). 05), and the bottom of the door panel (304) is fixedly connected to the top of the two sliding balls (306), the front of the limit strip (305) is provided with an armrest block (307), and a working groove is provided at the center of the top plate (303), both sides of the top plate (303) are provided with grooves, and the inner walls of the two grooves are movably abutted with the outer walls of the outer baffle plate (201) and the inner baffle plate (203) near the top, respectively, the bottoms of the two sliding balls (306) are slidably connected with the inner bottom wall of the bottom plate (102), and the inner top walls of the two shielding plates (301) are movably abutted with the tops of the two threaded columns (103), and the bottoms of the two shielding plates (301) are movably abutted with the inner bottom wall of the bottom plate (102).

5. The thermal insulation shed that can be quickly dismantled and installed according to claim 4 is characterized in that: The cleaning member (4) comprises four fixed blocks (401), two fixed rods (402), a left rotating plate (403) and a right rotating plate (404), wherein the two fixed blocks (401) and one fixed rod (402) form a group, the inner walls of the two groups of fixed blocks (401) are fixedly connected to the outer walls of the fixed rods (402) close to both ends, and the outer walls of the two groups of fixed rods (402) away from both ends are rotatably connected to the inner walls of the left rotating plate (403) and the right rotating plate (404), respectively, the top of one side of the left rotating plate (403) is movably abutted against the bottom of one side of the right rotating plate (404), and the bottoms of the four fixed blocks (401) are fixedly connected to the top of the top plate (303), and the bottoms of the left rotating plate (403) and the right rotating plate (404) are movably abutted against the top of the top plate (303).

6. The quickly dismantled and installed heat preservation shed according to claim 5, characterized in that: The pushing member (5) is composed of a guide block (501), a sliding block (502), a rotating shaft (503), a transmission rod (504), a connecting rod (505), a pushing rod (506) and a pushing block (507), and the number of the guide block (501), the sliding block (502), the rotating shaft (503) and the transmission rod (504) is two, and the two guide blocks (501) are each provided with a slide groove, and the inner walls of the two slide grooves are respectively slidably connected to the outer walls of the two sliding blocks (502), and the inner walls of the two sliding blocks (502) are respectively rotatably connected to the outer walls at both ends of the two rotating shafts (503). The two rotating shafts (503) are connected, and the outer walls of the two rotating shafts (503) are rotatably connected to the inner walls of the two transmission rods (504), the bottom ends of the two transmission rods (504) are respectively fixedly connected to the tops of the two sides of the connecting rod (505), and the bottom of the connecting rod (505) away from the two sides is fixedly connected to the top of the pushing rod (506), the bottom end of the pushing rod (506) is fixedly connected to the top of the pushing block (507), and the two transmission rods (504) pass through the working groove, and the tops of the two guide blocks (501) are respectively fixedly connected to the bottoms of the left rotating plate (403) and the right rotating plate (404).