A segmented bottom plate type safety and labor-saving cover plate

Abstract

This utility model discloses a segmented, safe, and labor-saving cover plate, comprising: a U-shaped fixing frame with side plates welded and fixed to its bottom two sides; a cover plate body consisting of six sets arranged in a rectangular shape; and multiple sets of rotating support components, each fixedly connected to the inner walls of both sides of the U-shaped fixing frame. This utility model, through a series of structures, utilizes six sets of cover plate bodies to form three sections on each side that can be opened and closed independently. This avoids the problem of a heavy, integral cover plate body making it difficult to open and close with effort when the distance is long. Furthermore, when only a certain part needs to be opened, only the corresponding section of the cover plate body can be operated, reducing the ineffective force required to open the entire cover plate. This facilitates subsequent maintenance work, improves ease of use, and allows for automatic locking and support after the cover plate body is opened or closed, preventing accidental closure due to wind or other factors, thus improving operational stability.

Description

Technical Field

[0001] This utility model relates to the field of segmented cover plate technology, specifically a segmented bottom plate safety and labor-saving cover plate. Background Technology

[0002] Currently constructed dam gate slots and upper side openings of sunken gates mostly use concrete covers or fixed steel covers. Due to site conditions, hoisting is inconvenient and the fixed steel covers are large, making it difficult to open them easily for maintenance. This results in the following drawbacks: 1. The integral cover is heavy and difficult to open easily, causing significant inconvenience for subsequent maintenance. Furthermore, opening only a portion requires considerable effort, making it inconvenient for workers; 2. The cover lacks an automatic fixing and support mechanism, leading to accidental closure due to wind or other factors, resulting in poor stability. Therefore, this application proposes a segmented, safe, and labor-saving cover with a base plate to address these problems. Utility Model Content

[0003] The purpose of this utility model is to provide a segmented, safe, and labor-saving cover plate to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a segmented bottom plate type safety and labor-saving cover plate, comprising:

[0005] The U-shaped fixing frame has side plates welded and fixed on both sides of its bottom;

[0006] The cover body consists of six sets arranged in a rectangular pattern. The six sets of cover bodies form three sections on each side. By setting them individually, the problem of a heavy, one-piece cover body being difficult to open and close with effort is avoided when the distance is long.

[0007] The rotating support assembly consists of multiple sets, which are respectively fixedly connected to the inner walls of both sides of the U-shaped fixing frame. The two opposing sides of the cover plate bodies are respectively fixedly connected to the three corresponding rotating support assemblies. The rotating support assembly is used to rotate and support the corresponding cover plate bodies.

[0008] The U-shaped slider consists of six sets, each set below a corresponding cover plate body. The bottom sides of the cover plate body are fixedly connected to fixed seats. Two horizontal guide rods are welded and fixed between two fixed seats at the bottom of the same cover plate body. The U-shaped slider is slidably sleeved on the corresponding two horizontal guide rods. The top sides of the U-shaped slider are both set as inclined surfaces. The two inclined surfaces on the same U-shaped slider are symmetrically arranged. The top of the U-shaped slider has three slots.

[0009] The diagonal connecting rods consist of twelve sets, which are rotatably installed on the inner walls of the front and rear sides of the corresponding U-shaped sliders. The bottom of the two side plates that are close to each other are rotatably installed with the corresponding six diagonal connecting rods. The diagonal connecting rods are used to provide tilt support for the corresponding U-shaped sliders.

[0010] The elastic locking components consist of twelve sets, which are respectively embedded and fixed in pairs on the corresponding cover plate bodies. The six sets of elastic locking components in the middle are respectively movably locked in the corresponding three slots. The elastic locking components are used for easy pulling and unlocking and for automatic locking and fastening in conjunction with the inclined surface when the U-shaped slider moves horizontally.

[0011] Preferably, the swivel support assembly includes two support seats and a circular rotating sleeve. The two opposing sides of the cover plate bodies are welded and fixed to the outer sides of the three corresponding circular rotating sleeves. Support seats are rotatably installed on the front and rear sides of the circular rotating sleeves. The inner walls of the two sides of the U-shaped fixing frame are welded and fixed to the corresponding multiple support seats.

[0012] Preferably, the elastic locking assembly includes a rectangular sleeve, a rectangular slider, three locking posts, three ball bearings, three springs, a connecting plate, and a U-shaped handle. The top two sides of the cover plate body are respectively fitted and fixed to the corresponding rectangular sleeves. The rectangular slider is slidably fitted inside the corresponding rectangular sleeve. The locking posts are movably fitted into the corresponding slots. The ball bearings are movably fitted into the bottom end of the locking posts. The rectangular slider is fixedly fitted onto the corresponding three locking posts. The rectangular sleeve is slidably fitted onto the corresponding three locking posts. The spring is fixedly connected between the top of the corresponding rectangular slider and the inner wall of the top of the rectangular sleeve. The spring is movably fitted onto the corresponding locking posts. The connecting plate is fixedly connected to the top of the corresponding three locking posts. The top of the connecting plate has a groove. The U-shaped handle is rotatably installed between the front and rear inner walls of the corresponding groove. The ball bearings are adapted to the inclined surface on the corresponding U-shaped slider.

[0013] Preferably, a support frame is welded and fixed between the inner walls of the front and rear sides of the U-shaped fixing frame, and flexible rubber pads are embedded and fixed on both sides of the top of the support frame, with the top of the flexible rubber pads in movable contact with the bottom side of the corresponding cover plate body.

[0014] Preferably, the rotating sleeve has two first bearings fixedly fitted inside, and the two first bearings located in the same rotating sleeve have the same first stainless steel shaft fixedly fitted inside, with the front end and rear end of the first stainless steel shaft welded and fixed to the corresponding support seat respectively.

[0015] Preferably, six supports are fixedly connected to the bottom of the two side plates on their adjacent sides. The inner walls of the front and rear sides of the U-shaped slider and the front side of the supports are all welded and fixed with a second stainless steel shaft. The top and bottom of the front side of the inclined connecting rod are both provided with circular through holes. A second bearing is fixedly sleeved in the circular through hole. The inner ring of the second bearing is fixedly sleeved with the outer side of the corresponding second stainless steel shaft.

[0016] Preferably, one side of the U-shaped slider has two horizontal guide holes that slide and fit with the outer side of the corresponding horizontal guide rod.

[0017] Preferably, the bottoms of two adjacent cover plate bodies on the same side are in movable contact with the same fixed support leg, and the two opposite fixed support legs are fixedly connected to the same T-shaped bracket, with the top of the T-shaped bracket welded to the bottom of the support frame.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By setting up six sets of cover plates, three sections on each side can be opened and closed independently. This avoids the phenomenon that the heavy integral cover plate body is difficult to open and close with effort when the distance is long. Moreover, when only a certain part needs to be opened, only the cover plate body at the corresponding position can be operated, reducing the ineffective force caused by opening the whole body. This brings convenience to subsequent maintenance work and improves ease of use.

[0020] 2. Through the cooperation of the cover plate body, the swivel support assembly, the elastic locking assembly, the U-shaped slider, the horizontal guide rod and the diagonal connecting rod, the cover plate body can be automatically locked and supported after opening or closing, avoiding the phenomenon of automatic closing due to accidental wind blowing or accidental collision, thus improving the stability of use.

[0021] 3. By using a T-shaped bracket and fixed legs in combination, the bottom joint of two adjacent cover plates can be strengthened, further reducing the risk of non-professionals such as university students stepping on the cover plates and falling down, and improving the support safety when closed.

[0022] This utility model incorporates a series of structures, utilizing six sets of cover plates to form three sections on each side that can be opened and closed independently. This avoids the problem of a heavy, integral cover plate making it difficult to open and close with minimal effort when the distance is long. Furthermore, when only a certain part needs to be opened, only the cover plate at that location can be operated, reducing the ineffective force required to open the entire cover plate. This facilitates subsequent maintenance and improves ease of use. Additionally, the cover plate automatically locks and supports itself after opening or closing, preventing accidental closure due to wind or other factors, thus improving operational stability. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a segmented safety and labor-saving cover plate according to Embodiment 1 of this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure viewed from below;

[0025] Figure 3This is a schematic diagram of the main sectional view of a segmented safety and labor-saving cover plate according to Embodiment 1 of this utility model;

[0026] Figure 4 for Figure 3 A magnified structural diagram of part A in the diagram;

[0027] Figure 5 This is a bottom view structural diagram of a segmented safety and labor-saving cover plate proposed in Embodiment 2 of this utility model.

[0028] In the diagram: 1. U-shaped fixing frame; 101. Side plate; 102. Support frame; 103. T-shaped bracket; 104. Fixed support leg; 2. Cover plate body; 201. Circular rotating sleeve; 3. Horizontal guide rod; 301. U-shaped slider; 302. Diagonal connecting rod; 303. Slot; 304. Second stainless steel shaft; 4. Rectangular sleeve; 401. Locking post; 402. Ball bearing; 403. Spring; 404. Rectangular slider; 405. Connecting plate; 406. U-shaped handle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] like Figures 1 to 4 As shown in this embodiment, a segmented safety and labor-saving cover plate with a base plate includes:

[0032] The U-shaped fixing frame 1 has side plates 101 welded and fixed on both sides of its bottom;

[0033] The cover body 2 consists of six sets arranged in a rectangular shape. The six sets of cover body 2 are arranged in a way that forms three sections on each side. By setting them separately, the problem of the integral cover body 2 being too heavy and difficult to open and close with effort is avoided when the distance is long.

[0034] The rotating support assembly consists of multiple sets, which are respectively fixedly connected to the inner walls of both sides of the U-shaped fixing frame 1. The opposing sides of the two cover plate bodies 2 are respectively fixedly connected to the three corresponding rotating support assemblies. The rotating support assembly is used to rotate and support the corresponding cover plate body 2.

[0035] The U-shaped slider 301 consists of six sets, each set below the corresponding cover plate body 2. The bottom sides of the cover plate body 2 are fixedly connected to fixed seats. Two horizontal guide rods 3 are welded and fixed between the two fixed seats at the bottom of the same cover plate body 2. The U-shaped slider 301 is slidably sleeved on the corresponding two horizontal guide rods 3. The top of both sides of the U-shaped slider 301 is set as inclined surfaces. The two inclined surfaces on the same U-shaped slider 301 are symmetrically arranged. The top of the U-shaped slider 301 has three slots 303.

[0036] There are twelve sets of diagonal connecting rods 302, which are rotatably installed on the front inner wall and the rear inner wall of the corresponding U-shaped slider 301. The bottom of the two side plates 101 on the side that are close to each other are rotatably installed with the corresponding six diagonal connecting rods 302. The diagonal connecting rods 302 are used to provide tilt support for the corresponding U-shaped slider 301.

[0037] The elastic locking components consist of twelve sets, which are respectively embedded and fixed in pairs on the corresponding cover plate body 2. The six sets of elastic locking components in the middle are respectively movably locked in the corresponding three slots 303. The elastic locking components are used for easy pulling to unlock and to automatically lock in place when the U-shaped slider 301 moves laterally, in conjunction with its inclined surface.

[0038] In this embodiment, a support frame 102 is welded and fixed between the inner walls of the front and rear sides of the U-shaped fixing frame 1. Flexible rubber pads are embedded and fixed on both sides of the top of the support frame 102. The top of the flexible rubber pads is in movable contact with the bottom side of the corresponding cover plate body 2. The support frame 102 and the flexible rubber pads are used to strengthen the support of the cover plate body 2 on both sides in the middle when closed. Six supports are fixedly connected to the bottom of the two side plates 101 on the side with similar sides. The inner walls of the front and rear sides of the U-shaped slider 301 and the front side of the supports are welded and fixed with a second stainless steel shaft 304. The top and bottom of the front side of the inclined connecting rod 302 are provided with circular through holes. A second bearing is fixedly sleeved in the circular through holes. The inner ring of the second bearing is fixedly fitted with the outer side of the corresponding second stainless steel shaft 304. The supports, the second bearing and the second stainless steel shaft 304 serve to rotate and install the inclined connecting rod 302. Two horizontal guide holes are provided on one side of the U-shaped slider 301, which are respectively slidably fitted with the outer side of the corresponding horizontal guide rod 3, serving to guide the U-shaped slider 301 to slide laterally.

[0039] Furthermore, such as Figure 1 , 2 As shown in Figure 3, the rotating support assembly includes two support seats and a circular sleeve 201. The two opposing cover plate bodies 2 are welded and fixed to the outer sides of the three corresponding circular sleeves 201 on their respective sides. Support seats are rotatably installed on the front and rear sides of the circular sleeves 201. The inner walls of the two sides of the U-shaped fixing frame 1 are welded and fixed to the corresponding multiple support seats.

[0040] In this embodiment, two first bearings are fixedly fitted inside the rotary sleeve 201. The two first bearings located inside the same rotary sleeve 201 are fixedly fitted with the same first stainless steel shaft. The front end and rear end of the first stainless steel shaft are welded and fixed to the corresponding support seat respectively. The first bearings and the first stainless steel shaft play the role of rotating and installing the corresponding rotary sleeve 201.

[0041] In this embodiment, two support seats and a rotating sleeve 201 are used to support the rotating sleeve 201, and the rotating sleeve 201 provides rotational support for the corresponding cover plate body 2.

[0042] Furthermore, such as Figure 1 , 2 As shown in Figures 3 and 4, the elastic locking assembly includes a rectangular sleeve 4, a rectangular slider 404, three locking posts 401, three ball bearings 402, three springs 403, a connecting plate 405, and a U-shaped handle 406. The top two sides of the cover plate body 2 are respectively fitted and fixed to the corresponding rectangular sleeves 4. The rectangular slider 404 is slidably fitted into the corresponding rectangular sleeve 4. The locking posts 401 are movably locked into the corresponding slots 303. The ball bearings 402 are movably fitted into the bottom end of the locking posts 401. The rectangular slider 404 is fixedly fitted into the corresponding three locking posts 406. On column 401, rectangular sleeve 4 is slidably sleeved on the corresponding three locking columns 401. Spring 403 is fixedly connected between the top of the corresponding rectangular slider 404 and the inner wall of the top of the rectangular sleeve 4. Spring 403 is movably sleeved on the corresponding locking column 401. Connecting plate 405 is fixedly connected to the top of the corresponding three locking columns 401. The top of connecting plate 405 is provided with a groove. U-shaped handle 406 is rotatably installed between the front and rear inner walls of the corresponding groove. Ball 402 is adapted to the inclined surface on the corresponding U-shaped slider 301.

[0043] In this embodiment, the top two sides of the cover plate body 2 are provided with mounting holes, and the rectangular sleeve 4 is welded and fixed in the corresponding mounting holes; the top of the rectangular slider 404 is provided with three fitting holes that are fixedly connected to the outer side of the corresponding locking post 401; the top of the rectangular sleeve 4 is provided with three vertical guide holes that are slidably fitted to the outer side of the corresponding locking post 401, so as to allow the locking post 401 to pass through and guide its vertical sliding; the inner walls of the front and rear sides of the groove are both welded and fixed with a third stainless steel shaft, and the two ends of the U-shaped handle 406 are both welded and fixed with a circular sleeve. The circular sleeve is fixedly fitted with a third bearing, and the inner ring of the third bearing is fixedly fitted to the outer side of the corresponding third stainless steel shaft, so as to achieve the effect of rotating and installing the U-shaped handle 406.

[0044] In this embodiment, the rectangular sleeve 4, rectangular slider 404, three locking pins 401, three ball bearings 402, three springs 403, connecting plate 405, and U-shaped handle 406 work together. The three locking pins 401 engage and lock the corresponding U-shaped slider 301 through the three slots 303. Pulling the U-shaped handle 406 upwards causes the corresponding connecting plate 405 to move upwards. The connecting plate 405 then moves the corresponding three locking pins 401 upwards, separating them from the three slots 303. The locking pins 401 then move the corresponding rectangular slider 404 upwards, compressing the springs 403, achieving a simple and convenient pull-to-unlock effect. After unlocking, rotating the cover plate body 2 upwards opens the cover plate... The main body 2 drives the U-shaped slider 301 to rotate outward via two corresponding horizontal guide rods 3. Under the pull of the inclined connecting rod 302, the U-shaped slider 301 rotates outward and slides on the two corresponding horizontal guide rods 3 towards the corresponding circular rotating sleeve 201, causing the corresponding inclined connecting rod 302 to rotate outward and tilt. When the U-shaped slider 301 slides outward to the corresponding outer ball 402, the inclined surface on the U-shaped slider 301 presses against the corresponding ball 402. Under the pressing force, the ball 402 is pressed and moves up along the inclined surface, causing the corresponding locking post 401 to move upward. The locking post 401 causes the corresponding rectangular slider 404 to be compressed upward by the spring 403. When the corresponding slot 303 moves outward to align with the locking post 401, the spring 403, which is in a compressed state, drives the locking post 401 to move back into the slot 303 via the corresponding rectangular slider 404, locking the U-shaped slider 301 in place. The inclined connecting rod 302 provides support through the locked U-shaped slider 301, and further supports the rotating cover body 2 via the horizontal guide rod 3, achieving the effect of automatically locking and supporting the cover body 2 after it is opened. When closing, the outer U-shaped handle 406 is pulled up, and the movement process is the same as pulling up the inner U-shaped handle 406 at the top, unlocking the cover again, and then the cover can be closed. When the main body 2 and the cover plate main body 2 rotate to close, the corresponding two horizontal guide rods 3 drive the U-shaped slider 301 to slide inward. The U-shaped slider 301 drives the corresponding inclined connecting rod 302 to rotate until the inclined surface of the U-shaped slider 301 presses the inner ball 402 and moves it upward. The ball 402 drives the corresponding locking post 401 to move upward. The locking post 401 drives the rectangular slider 404 to compress the spring 403 until the U-shaped slider 301 drives the corresponding slot 303 to move back to align with the inner locking post 401. At this time, the spring 403, which is in a compressed state, drives the locking post 401 to move back and lock into the slot 303 through the corresponding rectangular slider 404, realizing the locking work again.

[0045] It should be noted that the support base, circular sleeve 201, diagonal connecting rod 302, U-shaped slider 301, fixed base, support, rectangular sleeve 4, rectangular slider 404, locking post 401, connecting plate 405 and U-shaped handle 406 are all preferably made of stainless steel. The advantages of stainless steel are high hardness, high wear resistance and good maintenance-free effect, which ensures long-term connection and support stability.

[0046] The usage method of this embodiment is as follows: When using the segmented safety and labor-saving cover plate, the six sets of cover plate bodies 2 are arranged in a way that three sections are on each side. By setting them separately, the phenomenon that the integral cover plate body 2 is too heavy and difficult to open and close with effort is avoided when the distance is long. Moreover, when only a certain part needs to be opened, only the cover plate body 2 at the corresponding position can be operated, reducing the phenomenon of ineffective force caused by opening the whole, bringing convenience to subsequent maintenance work and improving ease of use.

[0047] Three locking pins 401 are used to lock the corresponding U-shaped sliders 301 through three slots 303. Pulling the inner U-shaped handle 406 upward causes the corresponding connecting plate 405 to move upward. The connecting plate 405 causes the corresponding three locking pins 401 to move upward and separate from the three slots 303. The locking pins 401 cause the corresponding rectangular sliders 404 to move upward and compress the spring 403, achieving a simple and convenient pull-to-unlock effect. When the cover body 2 is turned upward after unlocking, the cover body 2 causes the corresponding three circular rotating sleeves 201 to rotate. The cover body 2 causes the U-shaped sliders 301 to rotate outward through the corresponding two horizontal guide rods 3. Under the pull of the inclined connecting rod 302, the U-shaped sliders 301 rotate outward and slide towards the corresponding circular rotating sleeves 201 on the corresponding two horizontal guide rods 3, causing the corresponding inclined connecting rod 302 to rotate outward and tilt. When the corresponding outer ball 402 is at the U-shaped slider 301, the inclined surface on the U-shaped slider 301 presses the corresponding ball 402. Under the pressure, the ball 402 is pressed and moves up along the inclined surface, which drives the corresponding locking post 401 to move up. The locking post 401 drives the corresponding rectangular slider 404 to compress the spring 403 upward. When the U-shaped slider 301 drives the corresponding slot 303 to move outward and align with the locking post 401, the spring 403, which is in a compressed state, drives the locking post 401 to move back and lock into the slot 303 through the corresponding rectangular slider 404, locking and securing the U-shaped slider 301. The inclined connecting rod 302 supports the U-shaped slider 301 through the locked U-shaped slider 301, and further locks and supports the rotating and opening cover body 2 through the horizontal guide rod 3, realizing the effect of automatically locking and supporting the cover body 2 after it is opened, avoiding the phenomenon of automatic closing due to accidental wind or accidental bumps, and improving the stability of use.

[0048] When closing, pull up the outer U-shaped handle 406. Similarly, pull up the inner U-shaped handle 406 to unlock again. Then the cover body 2 can be closed. When the cover body 2 rotates to close, the corresponding two horizontal guide rods 3 drive the U-shaped slider 301 to slide inward. The U-shaped slider 301 drives the corresponding inclined connecting rod 302 to rotate until the inclined surface of the U-shaped slider 301 presses the inner ball 402 and moves it upward. The ball 402 drives the corresponding locking post 401 to move upward. The locking post 401 drives the rectangular slider 404 to compress the spring 403 until the U-shaped slider 301 drives the corresponding slot 303 to move back to align with the inner locking post 401. At this time, the spring 403, which is in a compressed state, drives the locking post 401 to move back and lock into the slot 303 through the corresponding rectangular slider 404, realizing the locking work again.

[0049] Example 2

[0050] like Figure 5 As shown, this embodiment differs from Embodiment 1 in that: the bottoms of two adjacent cover plate bodies 2 located on the same side are also in contact with the same fixed support leg 104, and the two fixed support legs 104 on the left and right sides are fixedly connected to the same T-shaped bracket 103, and the top of the T-shaped bracket 103 is welded and fixed to the bottom of the support frame 102.

[0051] This embodiment can strengthen the support at the bottom joint of two adjacent cover plate bodies 2, further reducing the risk of non-professionals such as college students stepping on the cover plate bodies 2 and falling down, and improving the support safety when closed.

[0052] The method of use in this embodiment is as follows: The difference from the first embodiment is that it also has the following functions: By using the set T-shaped bracket 103 and fixed support leg 104, it can strengthen the active support at the bottom joint of the two adjacent cover plate bodies 2, further reducing the risk of non-professionals such as college students stepping on the cover plate body 2 and falling down, and improving the support safety when closed.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bottom plate sectional safety labor-saving type cover plate comprising a meander-shaped fixing frame (1), characterized in that: include: A U-shaped fixing frame (1) has side plates (101) welded and fixed on both sides of its bottom; The cover plate body (2) consists of six sets arranged in a rectangular shape; The rotating support assembly consists of multiple sets, which are respectively fixedly connected to the inner walls of both sides of the U-shaped fixing frame (1). The two opposing sides of the cover plate bodies (2) are respectively fixedly connected to the three corresponding rotating support assemblies. The U-shaped slider (301) consists of six sets, which are respectively set below the corresponding cover plate body (2). The bottom sides of the cover plate body (2) are fixedly connected to the fixing seats. Two horizontal guide rods (3) are welded and fixed between the two fixing seats at the bottom of the same cover plate body (2). The U-shaped slider (301) is slidably sleeved on the corresponding two horizontal guide rods (3). The top of both sides of the U-shaped slider (301) is set as an inclined surface. The two inclined surfaces on the same U-shaped slider (301) are symmetrically arranged. The top of the U-shaped slider (301) has three slots (303). The diagonal connecting rods (302) are in twelve groups and are respectively rotatably installed on the front inner wall and the rear inner wall of the corresponding U-shaped slider (301). The bottom of the two side plates (101) on the adjacent side are respectively rotatably installed with the corresponding six diagonal connecting rods (302). The elastic locking components consist of twelve sets, which are respectively embedded and fixed in pairs on the corresponding cover plate body (2). The six sets of elastic locking components in the middle are respectively movably locked in the corresponding three slots (303).

2. The floor segmental safety labor-saving cover plate according to claim 1, characterized in that: The rotating support assembly includes two support seats and a rotating sleeve (201). The two opposing cover plate bodies (2) are welded and fixed to the outer sides of the three corresponding rotating sleeves (201) on their respective sides. Support seats are rotatably installed on the front and rear sides of the rotating sleeves (201). The inner walls of the two sides of the U-shaped fixing frame (1) are welded and fixed to the corresponding multiple support seats.

3. The bottom plate segmented safe labor-saving cover plate according to claim 1, characterized in that: The elastic locking assembly includes a rectangular sleeve (4), a rectangular slider (404), three locking posts (401), three ball bearings (402), three springs (403), a connecting plate (405), and a U-shaped handle (406). The top two sides of the cover plate body (2) are respectively fitted and fixed to the corresponding rectangular sleeves (4). The rectangular slider (404) is slidably fitted into the corresponding rectangular sleeve (4). The locking posts (401) are movably locked into the corresponding slots (303). The ball bearings (402) are movably fitted into the bottom end of the locking posts (401). The rectangular slider (404) is fixedly fitted into the corresponding three locking posts (401). On the column (401), the rectangular sleeve (4) is slidably fitted on the corresponding three locking posts (401), the spring (403) is fixedly connected between the top of the corresponding rectangular slider (404) and the inner wall of the top of the rectangular sleeve (4), the spring (403) is movably fitted on the corresponding locking post (401), the connecting plate (405) is fixedly connected to the top of the corresponding three locking posts (401), the top of the connecting plate (405) is provided with a groove, the U-shaped handle (406) is rotatably installed between the inner walls of the front and rear sides of the corresponding groove, and the ball (402) is adapted to the inclined surface on the corresponding U-shaped slider (301).

4. The bottom plate segmented safe labor-saving cover plate according to claim 1, characterized in that: A support frame (102) is welded and fixed between the inner walls of the front and rear sides of the U-shaped fixing frame (1). Flexible rubber pads are embedded and fixed on both sides of the top of the support frame (102). The top of the flexible rubber pads is in contact with the bottom side of the corresponding cover plate body (2).

5. The bottom plate segmented safe labor-saving cover plate according to claim 2, characterized in that: The circular sleeve (201) is fixedly fitted with two first bearings. The two first bearings located in the same circular sleeve (201) are fixedly fitted with the same first stainless steel shaft. The front end and rear end of the first stainless steel shaft are welded and fixed to the corresponding support seats respectively.

6. The bottom plate segmented safe labor-saving cover plate according to claim 1, characterized in that: Six supports are fixedly connected to the bottom of the two side plates (101) on the side that are close to each other. The inner wall of the front side and the inner wall of the rear side of the U-shaped slider (301) and the front side of the support are all welded and fixed with a second stainless steel shaft (304). The top and bottom of the front side of the inclined connecting rod (302) are provided with round through holes. A second bearing is fixedly sleeved in the round through hole. The inner ring of the second bearing is fixedly sleeved with the outer side of the corresponding second stainless steel shaft (304).

7. The bottom plate segmented safe labor-saving cover plate according to claim 1, characterized in that: The U-shaped slider (301) has two horizontal guide holes on one side, which are respectively slidably fitted to the outer side of the corresponding horizontal guide rod (3).

8. The bottom plate segmented safety labor-saving cover plate according to claim 1, characterized in that: The bottom of the two adjacent cover plate bodies (2) on the same side is also in contact with the same fixed support leg (104), and the two fixed support legs (104) on the left and right sides are fixedly connected to the same T-shaped bracket (103). The top of the T-shaped bracket (103) is welded and fixed to the bottom of the support frame (102).

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