Novel protective device
By designing a new type of protective device including a support column, a first protective component and a second protective component, the problems of small protection area and gaps in the prior art are solved, and synchronous protection and gap occlusion on both sides of the human body are achieved, which significantly improves the protection effect.
Patent Information
- Application Number
- CN202421007191.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The protective device set in the prior art can only protect the front of the human body, resulting in a small protection area and the two sides of the human body cannot be protected simultaneously. At the same time, when adjusting the distance of the protective plate, there will be gaps between the top and bottom of the protective plate, which cannot provide a better protective effect.
A new type of protective device is designed, including a support column, a first protective assembly and a second protective assembly. Through the combination of sliding grooves and threaded rods, the flexible movement and adjustment of the protective plate is achieved, and the two sides of the human body can be protected simultaneously, and the gap after the protective plate is blocked through the second protective component.
The protection area is improved, the two sides of the human body can be protected simultaneously, the protection effect is enhanced, and the practicality of protection is further improved by blocking the gap.
Smart Images

Figure CN222657076U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a novel protective device. Background Art
[0002] Radiation has a great radiation effect on the human body, which seriously threatens human health. At present, when patients are examined in a standing position in clinical practice, other parts of the body will inevitably be exposed to radiation, and corresponding protective equipment is generally prepared to reduce the damage, such as lead clothing, protective glasses, protective lead shields and protective screens.
[0003] Reference is made to the authorized patent number "CN214856844U" which discloses a medical radiation protection device, which records the following technical problem: "By setting two protection plates that can move up and down in a support frame, adjusting the protection plates to a specified height through a limiting mechanism, and setting the interval width between the two protection plates, radiation inspections are performed in specified areas to reduce the harm of radiation to the body, which can effectively reduce work difficulty and working time."
[0004] In the process of implementing the patent, the applicant found that the patent had the following technical problems:
[0005] Since the protective device set in this patent can only protect the front of the human body when in use, the protection area is small, and it is not possible to simultaneously protect both sides of the human body, resulting in low protection efficiency. At the same time, when adjusting the distance between the two protective plates, since the protective plates are fixed, after the protective plates move to the middle, there will be a gap between the top and bottom of the protective plates, which cannot produce a better protection effect on the human body. For this reason, it is necessary to propose a new protective device to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content
[0006] Based on this, a new type of protective device is provided to solve the following technical problems raised in the background technology: since the protective device set in the patent can only protect the front of the human body when in use, the protection area is small, and it is impossible to simultaneously protect both sides of the human body, resulting in low protection efficiency. At the same time, when adjusting the distance between the two protective plates, since the protective plates are fixed, after the protective plates move to the middle, there will be a gap between the top and bottom of the protective plates, which cannot produce a better protection effect on the human body.
[0007] The utility model adopts the following technical solution:
[0008] The novel protective device specifically includes a support column, two of which are provided with the support columns, two first sliding grooves are vertically symmetrically arranged on the inner side of the support columns, both sides of the bottom of the support columns are fixedly connected with support seats, and the bottom of the support seats away from the support columns is fixedly connected with rollers, two first protective components are vertically arranged between the two support columns, both ends of the first protective components are slidably connected to the first sliding grooves on the inner sides of the two support columns, second sliding grooves are opened at adjacent ends of the two support columns, and two second protective components are vertically arranged between the two support columns, and both ends of the second protective components are slidably connected to the second sliding grooves.
[0009] Furthermore, the first protective assembly includes a first threaded rod, a first motor, a first protective baffle and a first sliding block, a rotating groove is opened on one side of the inner side of the first sliding groove, the inner side of the rotating groove is rotatably connected to the first threaded rod, the top of the rotating groove is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the top of the first threaded rod, two first protective baffles are vertically arranged between the two support columns, and both ends of the first protective baffles extend to the inner side of the first sliding groove and are slidably connected to the first sliding groove, both ends of the first protective baffle close to the rotating groove are fixedly connected to the first sliding block, and the first sliding block extends to the inner side of the rotating groove and is threadedly connected to the first threaded rod.
[0010] Furthermore, the first protective component also includes a second threaded rod, a second motor and a second sliding block. The second threaded rod is rotatably connected to the inner center position of the first protective baffle, and the second motor is fixedly connected to the inner center top of the first protective baffle. The output end of the second motor is fixedly connected to the top of the second threaded rod, and the second sliding block is threadedly connected to the outer side of the second threaded rod, and the second sliding block is slidably connected to the inner side of the first protective baffle.
[0011] Furthermore, the first protective assembly also includes a second protective baffle, a limit block, a slide groove, a third sliding block and a connecting rotating rod, the second protective baffles are slidably connected to both ends of the inner side of the first protective baffle, and the two second protective baffles are symmetrically arranged, the top and bottom of the second protective baffle near one end of the second threaded rod are fixedly connected to the limit blocks, the top and bottom of the inner side of the first protective baffle are provided with limit grooves, and the limit block and the limit groove are slidably connected, the second protective baffle is fixedly connected to one end of the second threaded rod near the slide groove, the third sliding block is slidably connected to the inner side of the slide groove, the end of the third sliding block near the second threaded rod is rotatably connected to the connecting rotating rod, and the end of the connecting rotating rod away from the third sliding block is rotatably connected to the second sliding block.
[0012] Furthermore, the first protective assembly also includes a double-headed motor, a rotating shaft and a third protective baffle, a reserved groove is opened at the end of the second protective baffle away from the slide slot, a double-headed motor is fixedly connected to the center of the reserved groove, output ends at both ends of the double-headed motor are fixedly connected to the rotating shaft, ends of the rotating shaft away from the double-headed motor are rotatably connected to the top and bottom of the reserved groove, a third protective baffle is provided at the end of the second protective baffle away from the slide slot, and the third protective baffle is slidably connected to the inner side of the first protective baffle, and an end of the third protective baffle close to the second protective baffle extends to the inner side of the reserved groove and is fixedly connected to the outer side of the rotating shaft.
[0013] Further, the second protective assembly includes a fourth protective baffle, an insert block and a connecting handle, a fourth protective baffle is arranged between the two support columns, both ends of the fourth protective baffle are slidably connected to the second sliding groove, a plurality of first slots are opened at the top and bottom of the fourth protective baffle, and a plurality of second slots are opened at the top and bottom of the first protective baffle on the side close to the fourth protective baffle, an insert block is slidably connected to the inside of the first slot, and a plurality of the insert blocks penetrate the first slot and the second slot for plug-in connection, a connecting handle is arranged on the side of the plurality of insert blocks away from the fourth protective baffle, and the connecting handle and the ends of the plurality of insert blocks away from the fourth protective baffle are fixedly connected.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The utility model provides a novel protective device which can protect both sides of the human body simultaneously by increasing the protective area, thereby improving the protective effect of the protective device on the human body.
[0016] The utility model provides a novel protective device, which can cover the gap leaked after the protective plate is moved and adjusted, thereby further improving the protective effect of the protective device on the human body. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 A schematic diagram of the overall structure of a novel protective device provided by the utility model;
[0019] Figure 2 A schematic diagram of the explosion structure of a novel protective device provided by the utility model;
[0020] Figure 3 A new type of protective device provided by the utility model Figure 2 A schematic diagram of the structure at A;
[0021] Figure 4 A schematic diagram of the structure of a first protective baffle of a novel protective device provided by the utility model;
[0022] Figure 5 A schematic diagram of the structure of a second threaded rod of a novel protective device provided by the utility model;
[0023] Figure 6 A schematic diagram of the structure of a new type of protection device provided by the utility model when the first protection component is retracted or extended;
[0024] Figure 7 The utility model provides a new type of protective device provided by the second protective component of the structure of the schematic.
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] 1. Support column; 2. Support seat; 3. Roller; 4. First protective component; 5. Second protective component; 6. First threaded rod; 7. First motor; 8. First protective baffle; 9. First sliding block; 10. Second threaded rod; 11. Second motor; 12. Second sliding block; 13. Second protective baffle; 14. Limit block; 15. Slide; 16. Third sliding block; 17. Connecting rotating rod; 18. Double-headed motor; 19. Rotating shaft; 20. Third protective baffle; 21. Fourth protective baffle; 22. Insert block; 23. Connecting handle. DETAILED DESCRIPTION
[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0028] As described in the background art, since the protective device provided in the patent can only protect the front of the human body when in use, the protective area is small, and it is not possible to simultaneously protect both sides of the human body, resulting in low protection efficiency. At the same time, when adjusting the distance between the two protective plates, since the protective plates are fixed, after the protective plates move to the middle, there will be a gap between the top and bottom of the protective plates, which cannot provide better protection for the human body.
[0029] In order to solve this technical problem, the utility model provides a new type of protective device, which can simultaneously protect both sides of the human body by increasing the protection area, thereby improving the protective effect of the protective device on the human body.
[0030] Specifically, please refer to Figure 1-Figure 2 A new type of protective device specifically includes a support column 1. Two support columns 1 are provided. Two first sliding grooves are vertically symmetrically arranged on the inner side of the support column 1. Support seats 2 are fixedly connected to both sides of the bottom of the support column 1. Rollers 3 are fixedly connected to the bottom of the support seat 2 away from the support column 1. Two first protective components 4 are vertically arranged between the two support columns 1. Both ends of the first protective component 4 are slidably connected to the first sliding grooves on the inner sides of the two support columns 1. Second sliding grooves are opened at adjacent ends of the two support columns 1. Two second protective components 5 are also vertically arranged between the two support columns 1, and both ends of the second protective component 5 are slidably connected to the second sliding grooves.
[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0032] Embodiment 1:
[0033] Please refer to Figure 1-Figure 2 A new type of protective device, which includes a support column 1, two support columns 1 are provided, and two first sliding grooves are vertically symmetrically arranged on the inner side of the support column 1, and support seats 2 are fixedly connected to both sides of the bottom of the support column 1, and rollers 3 are fixedly connected to the bottom of the support seat 2 away from the support column 1. Two first protective components 4 are vertically arranged between the two support columns 1, and both ends of the first protective component 4 are slidably connected to the first sliding grooves on the inner sides of the two support columns 1, and second sliding grooves are opened at the adjacent ends of the two support columns 1, and two second protective components 5 are vertically arranged between the two support columns 1, and both ends of the second protective component 5 are slidably connected to the second sliding grooves.
[0034] When in use, the protective device can be pushed to a suitable designated position through the setting of the roller 3, and then the protective measures for the human body are taken through the setting of the first protective component 4. When protecting the human body, according to the actual situation, both sides of the human body can be protected synchronously, thereby improving the protective effect of the protective device on the human body. At the same time, the protective device can also be adapted to shield people of different heights and different body shapes, thereby further improving the protective effect of the protective device on the human body.
[0035] At the same time, through the setting of the first protection component 4, the gap can also be adjusted, so that regional protection of the human body can be achieved, thereby improving the practicality of the protection device;
[0036] At the same time, by setting the second protective component 5, when the first protective component 4 is adjusting the gap, the gap position after the first protective component 4 is moved can be covered, thereby further improving the protective effect of the protective device on the human body.
[0037] Embodiment 2:
[0038] This embodiment 2 is used to further disclose the specific structure of the first protection component 4 on the premise of the above embodiment. Through the coordination of the first protection component 4 and the structure in the above embodiment, it is possible to achieve synchronous protection of both sides of the human body by increasing the protection area, thereby improving the protective effect of the protection device on the human body.
[0039] A new type of protective device provided in Example 1 is further optimized, specifically, as follows: Figure 3-Figure 6 As shown, the first protective component 4 includes a first threaded rod 6, a first motor 7, a first protective baffle 8 and a first sliding block 9. A rotating groove is opened on one side of the inner side of the first sliding groove, and the inner side of the rotating groove is rotatably connected to the first threaded rod 6. The top of the rotating groove is fixedly connected to the first motor 7, and the output end of the first motor 7 is fixedly connected to the top of the first threaded rod 6. Two first protective baffles 8 are vertically arranged between the two support columns 1, and both ends of the first protective baffles 8 extend to the inner side of the first sliding groove and are slidably connected to the first sliding groove. Both ends of the first protective baffle 8 close to the rotating groove are fixedly connected to the first sliding block 9, and the first sliding block 9 extends to the inner side of the rotating groove and is threadedly connected to the first threaded rod 6.
[0040] The first protective component 4 also includes a second threaded rod 10, a second motor 11 and a second sliding block 12. The second threaded rod 10 is rotatably connected to the inner center position of the first protective baffle 8, and the second motor 11 is fixedly connected to the inner center top of the first protective baffle 8. The output end of the second motor 11 is fixedly connected to the top of the second threaded rod 10, and the second sliding block 12 is threadedly connected to the outer side of the second threaded rod 10, and the second sliding block 12 is slidably connected to the inner side of the first protective baffle 8.
[0041] The first protective assembly 4 also includes a second protective baffle 13, a limit block 14, a slide groove 15, a third sliding block 16 and a connecting rotating rod 17. The second protective baffles 13 are slidably connected to both ends of the inner side of the first protective baffle 8, and the two second protective baffles 13 are symmetrically arranged. The top and bottom of the second protective baffle 13 near one end of the second threaded rod 10 are fixedly connected to the limit block 14. The top and bottom of the inner side of the first protective baffle 8 are provided with limit grooves, and the limit block 14 and the limit groove are slidably connected. The second protective baffle 13 is fixedly connected to one end of the second threaded rod 10 near the slide groove 15, and the third sliding block 16 is slidably connected to the inner side of the slide groove 15. The end of the third sliding block 16 near the second threaded rod 10 is rotatably connected to the connecting rotating rod 17, and the end of the connecting rotating rod 17 away from the third sliding block 16 is rotatably connected to the second sliding block 12.
[0042] The first protective assembly 4 also includes a double-headed motor 18, a rotating shaft 19 and a third protective baffle 20. A reserved groove is opened at the end of the second protective baffle 13 away from the slide slot 15, and the double-headed motor 18 is fixedly connected to the center of the reserved groove. The output ends at both ends of the double-headed motor 18 are fixedly connected to the rotating shaft 19, and the ends of the rotating shaft 19 away from the double-headed motor 18 are rotatably connected to the top and bottom of the reserved groove. A third protective baffle 20 is provided at the end of the second protective baffle 13 away from the slide slot 15, and the third protective baffle 20 is slidably connected to the inner side of the first protective baffle 8. The end of the third protective baffle 20 close to the second protective baffle 13 extends to the inner side of the reserved groove and is fixedly connected to the outer side of the rotating shaft 19.
[0043] Specifically: when in use, by turning on the second motor 11, the second threaded rod 10 is driven to rotate inside the first protective baffle 8, so that the second sliding block 12 connected to the outer thread of the second threaded rod 10 can be driven to slide up and down inside the first protective baffle 8. When the second sliding block 12 slides upward, it will drive the bottom of the connected rotating rod 17 to move upward synchronously;
[0044] During the movement of the connecting rotating rod 17, the other end of the connecting rotating rod 17 away from the second sliding block 12 will cause an extrusion effect on the third sliding block 16, and then drive the third sliding block 16 to slide in the opposite direction inside the sliding groove 15. At the same time, the angle of the connecting rotating rod 17 itself will also be adjusted inside the first protective baffle 8. During the process of adjusting the angle of the connecting rotating rod 17, a force of squeezing the second protective baffle 13 toward the outside of the first protective baffle 8 will be generated, thereby pushing the second protective baffle 13 and the third protective baffle 20 to the outside of the first protective baffle 8. The setting of the limit block 14 can produce a limiting effect for the movement of the second protective baffle 13 inside the first protective baffle 8, thereby preventing the second protective baffle 13 from moving out of the inside of the first protective baffle 8 as a whole.
[0045] The second protective baffle 13 drives the third protective baffle 20 to move out of the two ends of the first protective baffle 8, so as to expand the protection area on both sides of the human body. At the same time, the double-headed motor 18 can be turned on to drive the two rotating shafts 19 to rotate inside the reserved groove, so that the third protective baffle 20 can be driven to rotate by the setting fixedly connected to the rotating shaft 19, so that the two third protective baffles 20 can rotate to wrap the human body, thereby further improving the protection effect on the human body.
[0046] When regional protection of the human body is required, the first motor 7 can be turned on, and the first threaded rod 6 can be driven by the first motor 7 to rotate inside the rotating groove, and at the same time, the first sliding block 9 threadedly connected to the first threaded rod 6 is driven to move up and down inside the rotating groove, and then the two first sliding blocks 9 are fixedly connected to the first protective baffle 8 to achieve the effect of adjusting the position of the two first protective baffles 8 between the two support columns 1, so that the size of the gap between the two first protective baffles 8 can be adjusted according to the situation, thereby improving the practicality of the protective device.
[0047] Embodiment 3:
[0048] This embodiment 3 is used to further disclose the specific structure of the second protective component 5 on the premise of the above embodiments. Through the coordination of the second protective component 5 and the structure in the above embodiments, it is possible to block the gaps leaked after the protective plate is moved and adjusted, thereby further improving the protective effect of the protective device on the human body.
[0049] The novel protective device provided in Example 1 and Example 2 is further optimized. Specifically, Figure 7 As shown, the second protective component 5 includes a fourth protective baffle 21, an insert block 22 and a connecting handle 23. The fourth protective baffle 21 is arranged between the two support columns 1. Both ends of the fourth protective baffle 21 are slidably connected to the second sliding groove. A plurality of first slots are opened at the top and bottom of the fourth protective baffle 21, and a plurality of second slots are opened at the top and bottom of the first protective baffle 8 close to the fourth protective baffle 21. An insert block 22 is slidably connected to the inner side of the first slot, and a plurality of insert blocks 22 pass through the first slot and the second slot for plug-in connection. A connecting handle 23 is arranged on the side of the plurality of insert blocks 22 away from the fourth protective baffle 21, and the connecting handle 23 and the ends of the plurality of insert blocks 22 away from the fourth protective baffle 21 are fixedly connected.
[0050] When the first protective baffle 8 moves between the two support columns 1, the connecting handle 23 can be pushed to drive the insert block 22 to pass through the first sliding groove and insert into the inner side of the second sliding groove at the top of the outer side of the first protective baffle 8, so that the fourth protective baffle 21 can be limited with the first protective baffle 8, so that the fourth protective baffle 21 can be driven to move synchronously in the second sliding groove through the movement of the first protective baffle 8;
[0051] At the same time, the second slots opened at the top and bottom of the first protective baffle 8 and the multiple plug-in blocks 22 set at the top and bottom of the fourth protective baffle 21 can cooperate to achieve a variety of shielding effects;
[0052] For example, the insert block 22 at the bottom of the fourth protective baffle 21 is inserted into the inner side of the second slot at the top of the first protective baffle 8, so that the fourth protective baffle 21 is located at the top of the first protective baffle 8, and can move up and down with the first protective baffle 8, and cover the gap at the top of the first protective baffle 8;
[0053] Insert the plug block 22 at the top of the fourth protective baffle 21 into the inner side of the second slot at the bottom of the first protective baffle 8, so that the fourth protective baffle 21 is located at the bottom of the first protective baffle 8, and can move up and down with the first protective baffle 8, and cover the gap at the bottom of the first protective baffle 8;
[0054] Thereby, the effect of shielding the gap between the two first protective baffles 8 can be improved, thereby improving the protective effect on the human body.
Claims
1. A novel protective device, comprising a support column (1), characterized in that: The support columns (1) are provided with two, and two first sliding grooves are vertically symmetrically arranged on the inner side of the support columns (1), and the two sides of the bottom of the support columns (1) are fixedly connected with support seats (2), and the bottom of the support seats (2) away from the support columns (1) is fixedly connected with rollers (3), and two first protective components (4) are vertically arranged between the two support columns (1), and both ends of the first protective components (4) are slidably connected to the first sliding grooves on the inner sides of the two support columns (1), and the adjacent ends of the two support columns (1) are provided with second sliding grooves, and two second protective components (5) are also vertically arranged between the two support columns (1), and both ends of the second protective components (5) are slidably connected to the second sliding grooves.
2. A novel protective device according to claim 1, characterized in that: The first protection component (4) comprises a first threaded rod (6), a first motor (7), a first protection baffle (8) and a first sliding block (9); a rotating groove is provided on one side of the inner side of the first sliding groove; the inner side of the rotating groove is rotatably connected to the first threaded rod (6); the top of the rotating groove is fixedly connected to the first motor (7); the output end of the first motor (7) is fixedly connected to the top of the first threaded rod (6); two first protection baffles (8) are vertically arranged between the two support columns (1); both ends of the first protection baffles (8) extend to the inner side of the first sliding groove and are slidably connected to the first sliding groove; both ends of the first protection baffle (8) close to the rotating groove are fixedly connected to the first sliding block (9); the first sliding block (9) extends to the inner side of the rotating groove and is threadedly connected to the first threaded rod (6).
3. A new type of protective device according to claim 2, characterized in that: The first protective component (4) also includes a second threaded rod (10), a second motor (11) and a second sliding block (12); the second threaded rod (10) is rotatably connected to the inner center of the first protective baffle (8); the second motor (11) is fixedly connected to the inner center top of the first protective baffle (8); the output end of the second motor (11) is fixedly connected to the top of the second threaded rod (10); the outer side of the second threaded rod (10) is threadedly connected to the second sliding block (12); and the second sliding block (12) is slidably connected to the inner side of the first protective baffle (8).
4. A new type of protective device according to claim 3, characterized in that: The first protection component (4) further comprises a second protection baffle (13), a limit block (14), a slide groove (15), a third sliding block (16) and a connecting rotating rod (17); the first protection baffle (8) is slidably connected to both ends of the inner side with the second protection baffle (13), and the two second protection baffles (13) are symmetrically arranged; the top and bottom of the second protection baffle (13) near one end of the second threaded rod (10) are fixedly connected to the limit block (14); the top and bottom of the inner side of the first protection baffle (8) are provided with A limiting groove, and the limiting block (14) and the limiting groove are slidably connected, the second protective baffle (13) is fixedly connected with a sliding groove (15) at one end close to the second threaded rod (10), and a third sliding block (16) is slidably connected inside the sliding groove (15), and the third sliding block (16) is rotatably connected with a connecting rotating rod (17) at one end close to the second threaded rod (10), and the end of the connecting rotating rod (17) away from the third sliding block (16) is rotatably connected with the second sliding block (12).
5. A new type of protective device according to claim 4, characterized in that: The first protection component (4) also includes a double-headed motor (18), a rotating shaft (19) and a third protection baffle (20); a reserved groove is provided at one end of the second protection baffle (13) away from the slide groove (15); a double-headed motor (18) is fixedly connected to the center of the reserved groove; output ends at both ends of the double-headed motor (18) are fixedly connected to the rotating shaft (19); ends of the rotating shaft (19) away from the double-headed motor (18) are rotatably connected to the top and bottom of the reserved groove; a third protection baffle (20) is provided at one end of the second protection baffle (13) away from the slide groove (15), and the third protection baffle (20) is slidably connected to the inner side of the first protection baffle (8); an end of the third protection baffle (20) close to the second protection baffle (13) extends to the inner side of the reserved groove and is fixedly connected to the outer side of the rotating shaft (19).
6. A novel protective device according to claim 2, characterized in that: The second protective assembly (5) comprises a fourth protective baffle (21), an insert block (22) and a connecting handle (23). The fourth protective baffle (21) is arranged between the two support columns (1). Both ends of the fourth protective baffle (21) are slidably connected to the second sliding groove. The top and bottom of the fourth protective baffle (21) are provided with a plurality of first slots, and the top and bottom of the first protective baffle (8) close to the fourth protective baffle (21) are provided with a plurality of second slots. The inside of the first slot is slidably connected with an insert block (22), and the plurality of insert blocks (22) penetrate the first slot and are plugged into the second slot. A connecting handle (23) is arranged on the side of the plurality of insert blocks (22) away from the fourth protective baffle (21), and the connecting handle (23) is fixedly connected to the ends of the plurality of insert blocks (22) away from the fourth protective baffle (21).