Protective device

Abstract

The utility model discloses a protective device, which belongs to the field of protective devices and comprises a bottom plate, a top plate and two side plates. The bottom plate is detachably connected with an external device; the top plate is parallel to the bottom plate, an arc-shaped opening is formed in the outer end of the top plate, and a cushion is arranged at the arc-shaped opening; the lower sides of the two side plates are fixedly connected with the two sides of the bottom plate in a one-to-one correspondence mode, and the upper sides of the two side plates are connected with the two sides of the top plate in a one-to-one correspondence mode and can be slidably connected in the vertical direction. The bottom plate, the top plate and the two side plates jointly define an area with openings in the two ends. The medical nursing bed has the advantages that the bottom plate, the top plate and the two side plates jointly define an area with the two ends open, the area is used for placing feet, the top plate abuts against the legs of a worker, excessive stretching is avoided, the protection effect is achieved, the soft cushions are arranged at the arc-shaped openings, and the use comfort is improved.

Description

Technical Field

[0001] The utility model relates to the field of protective devices, in particular to a protective device. Background Art

[0002] An induced draft fan is a device that generates negative pressure by rotating an impeller and then extracts air from the system. It is usually installed at the tail end of the boiler to extract hot flue gas from the furnace.

[0003] When inspecting an induced draft fan, the upper casing of the induced draft fan needs to be removed, and then the blades of the induced draft fan need to be disassembled for inspection. For large induced draft fans, workers generally need to stand on the lower casing and rotate the blades into place before disassembling. However, since there is no special protective device, when standing on the lower casing, the workers' feet may unconsciously extend to the inside of the lower casing. If the blades are rotated at this time, the workers' feet may be easily injured by the blades, and the safety factor is low.

[0004] Therefore, it is necessary to design a protective device to avoid safety problems. Utility Model Content

[0005] The invention aims to overcome the problem that there is generally no protective device when disassembling the induced draft fan in the prior art, and the safety factor is low.

[0006] The utility model provides a protective device, which includes:

[0007] a bottom plate, detachably connected to an external device;

[0008] A top plate is arranged parallel to the bottom plate, an outer end of the top plate is provided with an arc-shaped opening, and a soft cushion is provided at the arc-shaped opening;

[0009] Two side panels, wherein the lower sides of the two side panels are fixedly connected to the two sides of the bottom panel in a one-to-one correspondence, and the upper sides of the two side panels are connected to the two sides of the top panel in a one-to-one correspondence and can be slidably connected in a vertical direction;

[0010] The bottom plate, the top plate and the two side plates together form an area with openings at both ends.

[0011] Preferably, each of the side panels is provided with a sliding groove extending in a vertical direction, and each of the side panels is also provided with at least one positioning hole;

[0012] The top plate includes a top plate body, two height adjustment plates and a plurality of positioning inserts; the two height adjustment plates are fixed on both sides of the top plate body in a one-to-one correspondence, the two height adjustment plates are inserted in the two slide grooves in a one-to-one correspondence, the two height adjustment plates are respectively provided with at least one group of height adjustment holes, each group of the height adjustment holes is arranged in a one-to-one correspondence with each of the positioning holes, and each group of the height adjustment holes respectively includes a plurality of inserts distributed at intervals along the vertical direction; each of the positioning inserts respectively includes an upper insert section, a lower insert section and a connecting section connecting the upper insert section and the lower insert section, each of the upper insert sections is respectively arranged in a one-to-one correspondence with each group of the height adjustment holes, each of the upper insert sections is respectively inserted in one of the inserts at a corresponding height in each group of the height adjustment holes, each of the upper insert sections is respectively arranged on the corresponding side plate, and each of the lower insert sections is respectively inserted in each of the positioning holes in a one-to-one correspondence;

[0013] Wherein, the outer end of the top plate body is provided with the arc-shaped opening.

[0014] Preferably, the upper surface of each of the side panels is respectively provided with a plurality of first limiting grooves;

[0015] Each of the upper insertion sections is respectively arranged in the corresponding first limiting groove.

[0016] Preferably, the inner side surface of each of the side panels is respectively provided with a second limiting groove corresponding to the first limiting groove;

[0017] Each of the connecting sections is arranged in a one-to-one correspondence in each of the second limiting grooves.

[0018] Preferably, a tool cylinder is fixed to the outer surface of one of the side plates.

[0019] Preferably, the upper surface of the bottom plate is provided with anti-slip grooves.

[0020] Preferably, two clamping plates are fixed to the lower surface of the bottom plate and are spaced apart along the length direction thereof.

[0021] Preferably, the bottom plate is provided with at least one sunken groove for installing bolts.

[0022] Beneficial effects:

[0023] The beneficial effects produced by adopting the technical solution of this utility model are as follows:

[0024] (1) The bottom plate is detachably connected to the external device. When inspecting the induced draft fan, install this protective device at the corresponding position on the lower shell where the staff stands. After the inspection, remove this protective device.

[0025] (2) The top plate is arranged in parallel with the bottom plate, the lower sides of the two side plates are fixedly connected to the two sides of the bottom plate in a one-to-one correspondence, the upper sides of the two side plates are connected to the two sides of the top plate in a one-to-one correspondence and can be slidably connected in the vertical direction, and the bottom plate, the top plate and the two side plates together form an area with two ends open. During maintenance, the staff can place both feet or one foot closer to the inner side of the lower shell in this area, and the top plate can support the staff's legs to prevent the staff's feet from being excessively extended, thereby playing a protective role and improving the safety factor of the maintenance work.

[0026] (3) An arc-shaped opening is provided at the outer end of the top plate, and a soft cushion is provided at the arc-shaped opening. When in use, the legs can rest against the soft cushion, thereby improving the comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a side view of a protective device in the utility model installed on an induced draft fan;

[0029] Figure 2 This is a top view of a protective device in the utility model installed on an induced draft fan;

[0030] Figure 3 This is a top view of a protective device in the present utility model;

[0031] Figure 4 This is a side view of a protective device in the present utility model;

[0032] Figure 5 This is a top view of a protective device in the present invention, excluding the top plate;

[0033] Figure 6 This is a side view of the height adjustment plate of the present invention;

[0034] Figure 7 This is a schematic structural diagram of the positioning insert in the present utility model;

[0035] In the picture:

[0036] 1- bottom plate, 101- anti-slip groove, 102- splint, 103- sinking groove, 2- cushion, 3- side plate, 301- slide groove, 302- positioning hole, 303- first limiting groove, 304- second limiting groove, 305- tool cylinder, 4- top plate body, 401- arc opening, 5- height adjustment plate, 501- socket, 6- positioning insert, 601- upper insertion section, 602- lower insertion section, 603- connecting section, 7- induced draft fan, 701- blade, 702- lower shell. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Please refer to Figures 1 to 7 The present embodiment provides a protective device, which includes a bottom plate 1, a top plate and two side plates 3. The bottom plate 1 is detachably connected to the external device. When inspecting the induced draft fan 7, the protective device is installed at the corresponding position where the worker stands on the lower shell 702. After the inspection is completed, the protective device is removed; the top plate is arranged parallel to the bottom plate 1, and the lower sides of the two side plates 3 are fixedly connected to the two sides of the bottom plate 1 in a one-to-one correspondence. The upper sides of the two side plates 3 are corresponding to the two sides of the top plate in a one-to-one correspondence and can be slidably connected in the vertical direction. The bottom plate 1, the top plate and the two side plates 3 together form an area with openings at both ends. During inspection, the worker can place two feet or one foot closer to the inner side of the lower shell 702 in this area, and support the worker's legs through the top plate to prevent the worker's feet from excessively extending, thereby playing a protective role and improving the safety factor of the inspection work; an arc-shaped opening 401 is opened at the outer end of the top plate, and a soft pad 2 is provided at the arc-shaped opening 401. When in use, the legs can rest against the soft pad 2 to improve the comfort of use.

[0039] As a preferred embodiment, each side panel 3 is respectively provided with a slide groove 301 extending in the vertical direction, and each side panel 3 is also respectively provided with at least one positioning hole 302; the top panel includes a top panel body 4, two height adjustment plates 5 and a plurality of positioning inserts 6, the two height adjustment plates 5 are fixed on both sides of the top panel body 4 in a one-to-one correspondence, the two height adjustment plates 5 are respectively inserted into the two slide grooves 301 in a one-to-one correspondence, and the two height adjustment plates 5 are respectively provided with at least one group of height adjustment holes, each group of height adjustment holes is provided in a one-to-one correspondence with each positioning hole 302, and each group of height adjustment holes includes a plurality of inserts 501 spaced apart in the vertical direction; each positioning insert 6 includes an upper insert section 601, a lower insert section 602 and The connecting section 603 is used to connect the upper insertion section 601 and the lower insertion section 602. Each upper insertion section 601 is respectively arranged in a one-to-one correspondence with each group of height adjustment holes. Each upper insertion section 601 is respectively inserted into one of the sockets 501 at the corresponding height in each group of height adjustment holes. Each upper insertion section 601 is respectively arranged on the upper surface of the corresponding side panel 3. Each lower insertion section 602 is respectively inserted into each positioning hole 302. The height adjustment plate 5 can be moved in the slide groove 301, and the positioning strip 6 can be matched with the sockets 501 at different height positions to change the position of the top plate body 4 relative to the bottom plate 1, which is suitable for people of different heights. The outer end of the top plate body 4 is provided with an arc-shaped opening 401.

[0040] As a preferred embodiment, the upper surface of each side panel 3 is provided with a plurality of first limiting grooves 303; each upper insertion section 601 is disposed within a corresponding first limiting groove 303. The inner side surface of each side panel 3 is provided with a second limiting groove 304 corresponding to the first limiting groove 303; each connecting section 603 is disposed in a corresponding second limiting groove 304 to prevent the positioning strip 6 from moving.

[0041] As a preferred embodiment, a tool barrel 305 is fixed to the outer surface of one of the side panels 3 for storing tools when repairing the induced draft fan 7 .

[0042] As a preferred embodiment, the upper surface of the base plate 1 is provided with anti-skid grooves 101 to prevent the foot from slipping and improve the safety factor.

[0043] As a preferred embodiment, two clamping plates 102 are fixed to the lower surface of the base plate 1, spaced apart along its length. When the protective tooling is installed on the lower shell 702, the two clamping plates 102 clamp the side walls of the lower shell 702. The base plate 1 is provided with at least one recessed groove 103 for mounting bolts. Bolts are installed in the recessed groove 103 to ensure that the base plate 1 is mounted on the lower shell 702 while preventing the bolts from protruding and interfering with the placement of the foot.

[0044] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A protective device, characterized in that: It includes: a bottom plate, detachably connected to an external device; A top plate is arranged parallel to the bottom plate, an outer end of the top plate is provided with an arc-shaped opening, and a soft cushion is provided at the arc-shaped opening; Two side panels, wherein the lower sides of the two side panels are fixedly connected to the two sides of the bottom panel in a one-to-one correspondence, and the upper sides of the two side panels are connected to the two sides of the top panel in a one-to-one correspondence and can be slidably connected in a vertical direction; The bottom plate, the top plate and the two side plates together form an area with openings at both ends.

2. A protective device according to claim 1, characterized in that: It includes: Each of the side panels is provided with a slide groove extending in a vertical direction, and each of the side panels is also provided with at least one positioning hole; The top plate includes a top plate body, two height adjustment plates and a plurality of positioning inserts; the two height adjustment plates are fixed on both sides of the top plate body in a one-to-one correspondence, the two height adjustment plates are inserted in the two slide grooves in a one-to-one correspondence, the two height adjustment plates are respectively provided with at least one group of height adjustment holes, each group of the height adjustment holes is arranged in a one-to-one correspondence with each of the positioning holes, and each group of the height adjustment holes respectively includes a plurality of inserts distributed at intervals along the vertical direction; each of the positioning inserts respectively includes an upper insert section, a lower insert section and a connecting section connecting the upper insert section and the lower insert section, each of the upper insert sections is respectively arranged in a one-to-one correspondence with each group of the height adjustment holes, each of the upper insert sections is respectively inserted in one of the inserts at a corresponding height in each group of the height adjustment holes, each of the upper insert sections is respectively arranged on the corresponding side plate, and each of the lower insert sections is respectively inserted in each of the positioning holes in a one-to-one correspondence; Wherein, the outer end of the top plate body is provided with the arc-shaped opening.

3. A protective device according to claim 2, characterized in that: It includes: A plurality of first limiting grooves are respectively formed on the upper surface of each of the side panels; Each of the upper insertion sections is respectively arranged in the corresponding first limiting groove.

4. A protective device according to claim 3, characterized in that: It includes: The inner side surface of each of the side panels is respectively provided with a second limiting groove corresponding to the first limiting groove; Each of the connecting sections is arranged in a one-to-one correspondence in each of the second limiting grooves.

5. A protective device according to claim 4, characterized in that: It includes: A tool barrel is also fixed to the outer surface of one of the side plates.

6. A protective device according to claim 5, characterized in that: It includes: The upper surface of the bottom plate is provided with anti-slip grooves.

7. A protective device according to claim 6, characterized in that: It includes: Two clamping plates spaced apart along the length direction of the bottom plate are fixed to the bottom surface of the bottom plate.

8. A protective device according to claim 7, characterized in that: It includes: The bottom plate is provided with at least one sunken groove for installing bolts.

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