Safe and labor-saving cover plate

Abstract

The utility model relates to the technical field of cover plates, in particular to a safe and labor-saving cover plate which comprises a connecting frame, grid plates rotationally arranged on the two transverse sides of the connecting frame, first shielding plates arranged on the surfaces of the grid plates, second shielding plates rotationally arranged on the front side and the rear side of the connecting frame, and a driving device used for driving the grid plates to rotate upwards. Wherein the second shielding plates on the front side and the rear side are firstly opened, the driving device drives the grid plates to rotate, the grid plates are made to stand at the connecting frame, after completion, the second shielding plates and the grid plates surround to form obstacles to prevent people from entering the connecting frame, the grid plates are in an integrated grid shape, and a folding framework does not need to be manually contracted; the lifting mechanism can be driven to ascend and descend, then the grid plate is driven to rotate upwards and stand up, manual overturning of the grid plate is not needed, compared with an existing cover plate, operation is more convenient and faster, and the problems that it is strenuous to disassemble a telescopic framework of an existing cover plate, it is needed to pull the telescopic framework upwards manually, and time and labor are wasted are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cover plate, especially to a safe and labor-saving cover plate. BACKGROUND

[0002] At present, Chinese patent application number: CN115162918B discloses a safe and labor-saving cover plate opening type lifting mouth cover plate and its working method, including support frame, cover plate and telescopic framework rotatably arranged on the support frame on both sides of the cover plate in the vertical direction, the telescopic framework includes first connecting rod and telescopic frame, wherein the first connecting rod and the second connecting rod on the telescopic frame are attached to the support frame, the existing cover plate adopts telescopic framework as the support frame to reduce the volume, two disassemblers are needed to cooperate with disassembly and shrink, then the telescopic framework is pulled up through the pull rope to block the four around the lifting mouth, but the structure is laborious to disassemble the telescopic framework, and manual upward pulling of the telescopic framework is needed, which is time-consuming and laborious. SUMMARY

[0003] Therefore, in view of the above problems, the utility model provides a safe and labor-saving cover plate, which solves the technical problems of laborious disassembly of the telescopic framework of the existing cover plate, manual upward pulling of the telescopic framework, and time-consuming and laboriousness.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a safe and labor-saving cover plate, including connecting frame, grid plate rotatably arranged on the transverse two sides of the connecting frame, first shutter arranged on the surface of the grid plate, second shutter rotatably arranged on the front and rear two sides of the connecting frame, and driving device for driving the grid plate to rotate upward, the first shutter on the grid plate and the second shutter on the front and rear two sides of the connecting frame cover the connecting frame, the first shutter covers the middle position of the grid plate, and the second shutter covers the front and rear two side positions of the grid plate.

[0005] Further, the grid plate is composed of a plurality of horizontal rods and vertical rods intersecting longitudinally and transversely.

[0006] Further, the driving device includes a plurality of lifting mechanisms arranged between the connecting frame and the grid plate, and a driving mechanism for simultaneously driving the plurality of lifting mechanisms to move up and down.

[0007] Further, the lifting mechanism includes a plurality of guide blocks hingedly arranged on the bottom surface of the grid plate, a lead screw threadedly connected with the guide blocks, a transmission box for driving the lead screw to rotate, and a transmission member arranged between each transmission box, and the driving mechanism is a motor for driving the transmission member to rotate.

[0008] Further, the transmission member is a universal coupling.

[0009] Further, the second cover plate comprises a plurality of plate bodies, long rods arranged on both sides of the plate bodies, hinge seats arranged on top of the long rods, and an insertion block arranged between the plate bodies, wherein a transverse hole is arranged in the middle of the insertion block, the transverse hole in the middle of the insertion block is in sliding connection with the hinge seat, and a U-shaped hole for inserting the hinge seat is arranged on the right side of the insertion block.

[0010] By adopting the technical scheme, the safety labor-saving cover plate has the advantages that:

[0011] The safety labor-saving cover plate has the advantages that: the second cover plate on the front and back sides is first opened, the second cover plate has a width equal to the size of the connecting frame, and the volume and weight are small, which facilitates workers to pull out the second cover plate manually upward, the driving device drives the grating to rotate after completion, the grating stands at the connecting frame, the second cover plate and the grating form a barrier after completion, and the barrier prevents people from entering the inside of the connecting frame, the grating is integrally formed by a plurality of horizontal rods and vertical rods, and the grating is a grid without a manual folding framework, which is more convenient to turn upward, the driving device is provided with a built-in driving mechanism, which is a motor, and can drive the lifting mechanism to lift and then drive the grating to rotate upward, the grating does not need to be manually turned, the cover plate is more convenient and faster to operate, and the problems of laborious disassembly and expansion of the framework, and the need for manual upward pulling of the expansion framework are solved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the utility model;

[0013] Figure 2 is a grating unfolding structure schematic diagram of the utility model;

[0014] Figure 3 is a driving device structure schematic diagram of the utility model;

[0015] Figure 4 is a driving device structure front view schematic diagram of the utility model;

[0016] Figure 5 is a second cover plate local explosion structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] The utility model will be further described in combination with the drawings and the specific embodiments.

[0018] REFERENCE Figures 1 to 5The embodiment provides a safe and labor-saving cover plate, which comprises a connecting frame 1, a grating plate 2 rotatably arranged on the two lateral sides of the connecting frame 1, a first cover plate 3 arranged on the surface of the grating plate 2, a second cover plate 4 rotatably arranged on the front and back sides of the connecting frame 1, and a driving device for driving the grating plate 2 to rotate upwards, the first cover plate 3 on the grating plate 2 and the second cover plate 4 on the front and back sides of the connecting frame 1 cover the connecting frame 1, the first cover plate 3 covers the middle position of the grating plate 2, and the second cover plate 4 covers the front and back positions of the grating plate 2.

[0019] In use, the second cover plates 4 on the front and back sides are first opened, the second cover plates 4 are equal to the width dimension of the connecting frame 1, and the small volume and weight facilitate workers to manually pull out upwards, after completion, the driving device drives the grating plate 2 to rotate, so that the grating plate 2 stands at the connecting frame 1, after completion, the second cover plate 4 and the grating plate 2 form a barrier to prevent people from entering the inside of the connecting frame 1, since the grating plate 2 is integrally formed by the longitudinal and horizontal fixed connection of a plurality of horizontal rods 2a and vertical rods 2b, the grating plate 2 is a one-piece grating and does not need to manually contract and fold the framework, and it is more convenient to turn over upwards, the built-in driving mechanism 52 of the driving device is a motor, which can drive the lifting mechanism 51 to lift and then drive the grating plate 2 to rotate upwards and stand, without manually turning over the grating plate 2, and compared with the existing cover plate, the operation is more convenient and fast.

[0020] The length of the second cover plate 4 on the front and back sides accounts for about 20-30% of the front and back spacing length of the connecting frame 1, and is most preferably 25%, and the length of the first cover plate 3 in the middle of the grating plate 2 accounts for about 40-60% of the front and back spacing length of the connecting frame 1, which can reduce the weight of the second cover plate 4, manually pull the second cover plate 4, reduce the weight of the second cover plate 4, and simultaneously, the length of the first cover plate 3 is large, and the weight is pressed on the grating plate 2, the grating plate 2 is electrically driven, and the weight of the first cover plate 3 is comprehensively distributed and reduced.

[0021] The grating plate 2 is composed of a plurality of horizontal rods 2a and vertical rods 2b which are longitudinally and horizontally interlaced, and the plurality of horizontal rods 2a and vertical rods 2b can be integrally formed by welding or other existing connection modes, which is more convenient to open and close.

[0022] The driving device comprises a plurality of lifting mechanisms 51 arranged between the connecting frame 1 and the grating plate 2, and a driving mechanism 52 for simultaneously driving the plurality of lifting mechanisms 51 to move up and down, the lifting mechanism 51 comprises a plurality of guide blocks 511 hingedly arranged on the bottom surface of the grating plate 2, a lead screw 512 threadedly connected with the guide blocks 511, a transmission box 513 for driving the lead screw 512 to rotate, and a transmission member 514 arranged between each transmission box 513, and the driving mechanism 52 is a motor for driving the transmission member 514 to rotate.

[0023] The motor drives the transmission member 514 to rotate, the transmission member 514 drives the lead screw 512 at the top of each transmission box 513 to rotate, the lead screw 512 rotates, the lead screw 512 and the guide block 511 are pulled apart in length from the bottom of the guide block 511, and the lead screw 512 drives the grid plate 2 at the top to rotate until the grid plate 2 stands on the connecting frame 1.

[0024] The lifting mechanism 51 is the best embodiment, and the lifting mechanism 51 can also be replaced by an existing device such as an electric push rod or an air cylinder, which has the same function, and is a conventional technology, which will not be described here.

[0025] The transmission box mentioned in the application has been disclosed in the authorized and published utility model cases "Safe and labor-saving simple cover plate diverter" (CN103818440A) and "Safe and labor-saving novel reversing telescopic device of cover plate" (CN109980848A), and the structural principle of the transmission box has been disclosed, so the application will not be repeated here.

[0026] The transmission member 514 is preferably a universal joint, and when two spaced transmission boxes or the transmission box and the motor are not on the same axis, the universal joint can realize continuous transmission between the two spaced transmission boxes and the transmission box and the motor, and the universal joint is an existing technology, and can also be replaced by a traditional rotating shaft, which is an existing technology, and will not be described here.

[0027] The second shutter 4 comprises a plurality of plate bodies 401, long rods 402 arranged on the transverse two sides of the plate bodies 401, hinge seats 403 arranged on the top of the long rods 402, and plug blocks 404 arranged between the plate bodies 401, wherein the middle part of the plug block 404 is provided with a horizontal hole 405, the middle part of the plug block 404 is in sliding connection with the hinge seat 403, and the right side of the plug block 404 is provided with a U-shaped hole 406 for inserting the hinge seat 403.

[0028] When the second shutter is used, a plurality of plate bodies are pulled upwards, the second shutter is erected on the connecting frame, the plug block is pulled out of the hinge seat after completion, the plug block is pulled horizontally on an adjacent plate body, the plug block passes through the horizontal hole to approach the hinge seat on the adjacent plate body, the U-shaped hole on the plug block is inserted into the hinge seat on the adjacent plate body after completion, and the plurality of second shutters are blocked.

[0029] In addition, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] In the utility model, unless another definite provision and limitation, the term " install ", " link ", " connect ", " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated; can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's mutual action relation. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0031] In the utility model, unless another definite provision and limitation, first feature is " on " or " under " second feature can be that first and second features directly contact, or first and second features indirectly contact by intermediate medium. Moreover, first feature " above ", " over " and " on " second feature can be that first feature is directly above or obliquely above second feature, or just indicates that the horizontal height of first feature is higher than that of second feature. First feature " below ", " under " and " on " second feature can be that first feature is directly below or obliquely below second feature, or just indicates that the horizontal height of first feature is less than that of second feature.

[0032] In the description of the specification, the description of the terms " one embodiment ", " some embodiments ", " example ", " specific example " or " some examples " means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0033] Although the utility model has been specifically shown and introduced in combination with the preferred embodiment, the skilled in the art should understand that various changes can be made to the utility model in form and detail without departing from the spirit and scope of the utility model defined by the appended claims, and all are within the protection scope of the utility model.

Claims

1. A safe and labor-saving cover plate, characterized by, The utility model relates to a connecting frame (1), the lattice board (2) of rotationally arranged in the lateral two sides of connecting frame (1), the first shutter (3) of being arranged in the surface of lattice board (2), the second shutter (4) of rotationally arranged in the front and back two sides of connecting frame (1) and the drive arrangement for driving the upward rotation of lattice board (2), the first shutter (3) on lattice board (2) and the second shutter (4) of the front and back two sides of connecting frame (1) cover and cover connecting frame (1), the first shutter (3) covers the middle position of lattice board (2), and the second shutter (4) covers the front and back two side positions of lattice board (2).

2. The safe labor-saving cover plate according to claim 1, characterized in that: The lattice board (2) is composed of a plurality of horizontal rods (2a) and vertical rods (2b) intersecting longitudinally and transversely.

3. The safe labor-saving cover plate according to claim 1, characterized in that: The drive arrangement includes a plurality of lifting mechanisms (51) arranged between the connecting frame (1) and the lattice board (2), and a drive mechanism (52) for simultaneously driving the up-and-down movement of the plurality of lifting mechanisms (51).

4. A safety labor-saving cover plate according to claim 3, characterized in that: The lifting mechanism (51) includes a plurality of guide blocks (511) hingedly arranged on the bottom surface of the lattice board (2), a lead screw (512) threadedly connected with the guide blocks (511), a transmission box (513) for driving the rotation of the lead screw (512), and a transmission member (514) arranged between each transmission box (513), and the drive mechanism (52) is a motor for driving the rotation of the transmission member (514).

5. A safety labor-saving cover plate according to claim 4, characterized in that: The transmission member (514) is a universal coupling.

6. The safe labor-saving cover plate according to claim 1, characterized in that: The second shutter (4) includes a plurality of plate bodies (401), long rods (402) arranged on the lateral two sides of the plate bodies (401), hinge seats (403) arranged on the top of the long rods (402), and plug blocks (404) arranged between the plate bodies (401), the middle part of the plug block (404) is provided with a transverse hole (405), the middle part of the plug block (404) is in sliding connection with the hinge seat (403), and the right side of the plug block (404) is provided with a U-shaped hole (406) for inserting the hinge seat (403).

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