CN220165660U

CN220165660U - Safety fence structure for explosion-proof crane

Info

Publication number: CN220165660U
Application number: CN202321682647.8U
Authority: CN
Inventors: 吕利宗; 丁一; 苏阳
Original assignee: Demarco Hoisting Machinery Co Ltd
Current assignee: Demarco Hoisting Machinery Co Ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-12-12
Anticipated expiration: 2033-06-29

Abstract

The utility model discloses a safety fence structure for an explosion-proof crane, which comprises an explosion-proof crane walking table, a first installation sleeve is welded at the middle position of the upper end of the explosion-proof crane walking table, second installation sleeves are welded at the two sides of the upper end of the explosion-proof crane walking table, a first fixing column is fixed inside the first installation sleeve through bolts, one end of the first fixing column extends to the outside of the first installation sleeve, a second fixing column is fixed inside the second installation sleeve through bolts, one end of the second fixing column extends to the outside of the second installation sleeve, and a sliding groove is formed in the two sides of the first fixing column and the inner side of the second fixing column, a fence plate is arranged between the first fixing column and the second fixing column, and the two ends of the fence plate are in sliding fit with the sliding groove. The whole process of installing and dismantling the fence plate by the safety fence structure for the explosion-proof crane can be completed by a single person without multiple persons, and is convenient to use and good in practicability.

Description

Safety fence structure for explosion-proof crane

Technical Field

The utility model relates to the technical field of explosion-proof cranes, in particular to a safety fence structure for an explosion-proof crane.

Background

The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects in a certain range, also called crown block, aerial crane and crane, and the explosion-proof crane is a special type crane designed and developed for special environments filled with explosive gas and explosive dust, is widely applied to dangerous places where production environments such as petroleum, chemical industry, natural gas, food and the like are likely to explode, and workers can perform periodic inspection, maintenance, test, detection and inspection and other work on the hoisting machine, so that the personal safety of the workers is ensured, the safety risk of high-altitude falling is avoided, and a safety fence is required to be installed on the top of a travelling table of the explosion-proof crane.

The prior Chinese patent with the publication number of CN212387587U discloses a protective fence device of a crane, which comprises a walking platform, wherein the top end of the walking platform is detachably connected with a plurality of upright posts which are uniformly arranged at intervals, and a fence unit is detachably connected between two adjacent upright posts; the rail unit includes the latticed guard plate, and the upper and lower both ends of latticed guard plate all are fixed with the mounting panel, and rectangular through-hole and the mounting groove that is linked together with rectangular through-hole have all been seted up at the left and right sides both ends of mounting panel, and sliding connection has the slide bar in the rectangular through-hole, has seted up the spout with slide bar one-to-one on the stand, and the one end that the slide bar deviates from rectangular through-hole runs through the mounting groove and extends to in the spout, and the cover is equipped with the movable block on the inside slide bar of mounting groove, movable block and mounting groove sliding connection, the cover is equipped with compression spring on the slide bar.

The scheme is convenient to install and detach and easy to popularize, but when the fence device is dismounted, four handles are required to be operated simultaneously, single operation is inconvenient, multiple people are required to operate in a matched mode, the practicability is low, the use is inconvenient, the existing requirements are not met, and the safety fence structure for the explosion-proof crane is provided.

Disclosure of Invention

The utility model aims to provide a safety fence structure for an explosion-proof crane, which solves the problem that the safety fence structure provided in the background art is inconvenient to use due to inconvenient operation by a single person when being disassembled and assembled.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a safety fence structure for explosion-proof crane, includes explosion-proof crane walking board, the intermediate position department of explosion-proof crane walking board upper end has welded first installation cover, the both sides of explosion-proof crane walking board upper end have welded second installation cover, first installation cover is inside to be fixed with first fixed column through the bolt, and the one end of first fixed column extends to the outside of first installation cover, the inside of second installation cover is all fixed with the second fixed column through the bolt, and the one end of second fixed column all extends to the outside of second installation cover;

the sliding chute is arranged on the two sides of the first fixing column and the inner side of the second fixing column, a fence plate is arranged between the first fixing column and the second fixing column, and two ends of the fence plate are in sliding fit with the sliding chute;

still include the top dog, it sets up the top of first fixed column and second fixed column, the transmission chamber has been seted up to the inside of top dog, the inside intermediate position department of transmission chamber is provided with first pivot, the one end of first pivot runs through and extends to the outside of transmission chamber, and first pivot and transmission chamber threaded connection, the upside of the inside both sides of transmission chamber is all rotated and is provided with single threaded rod, the one end of single threaded rod is all fixed and is provided with the second pivot, the outside equal threaded connection of single threaded rod has the movable block, one side of movable block all welds the stopper, the one end of stopper all runs through and extends to the outside of transmission chamber, and the stopper all with transmission chamber sliding fit.

Preferably, the outer wall of the first rotating shaft at one end inside the transmission cavity and one end of the second rotating shaft are fixedly provided with conical gears, and the conical gears are in meshed connection.

Preferably, the guide rods are welded below the single threaded rod, penetrate through the moving block, and are in sliding fit with the moving block.

Preferably, the upper end of one side of the second fixing column is provided with a limiting groove, and the limiting groove is matched with one end of the limiting block outside the transmission cavity.

Preferably, the upper ends of the first fixing column and the second fixing column are welded with positioning blocks, three equally spaced positioning grooves are formed in the lower end of the top stop block, and the positioning grooves are matched with the positioning blocks.

Preferably, a hand wheel is arranged at one end of the first rotating shaft, which is positioned outside the transmission cavity.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the first fixing column is arranged at the upper end of the first mounting sleeve, the second fixing column is arranged in the second mounting sleeve, when the assembly is carried out, a worker can conveniently and preliminarily fix the fence plate by sliding the fence plate into the sliding groove between the first fixing column and the second fixing column, then the top stop block is pressed down and clamped into the positioning groove through the positioning block, and the top stop block can limit the upper end of the fence plate, so that the fence plate can be conveniently fixed, the whole-process operation is simple and convenient, and the daily use is convenient.

2. According to the utility model, the single threaded rod is arranged on the upper side of the inner side of the transmission cavity in a rotating way, after the top stop block is pressed down, the movable block can synchronously rotate through rotating the single threaded rod, and can horizontally and linearly move under the limiting action of the guide rod, and the movable block can be driven to be clamped into the limiting groove when moving, so that the top stop block can be firmly fixed, the connection firmness of the top stop block and the second fixed column is enhanced, the falling risk of the fence plate is avoided, and the safety is improved.

3. According to the utility model, the first rotating shaft is arranged at the middle position in the transmission cavity in a rotating way, when the single threaded rod is required to be rotated, a worker can drive the first rotating shaft to rotate only by rotating the hand wheel, and the first rotating shaft can realize synchronous rotation of the two single threaded rods under the meshing transmission of the bevel gears, so that a single person can finish the movement fixation of the limiting blocks at the two sides, the whole process of installing and dismantling the fence plate can be finished by the single person without multiple operations, and the fence plate is convenient to use and good in practicability.

Drawings

FIG. 1 is a front view of the internal structure of the present utility model;

FIG. 2 is a schematic top view of the upper end structures of the first and second fixing posts of the present utility model;

FIG. 3 is an enlarged view of a portion of the area A of FIG. 1 in accordance with the present utility model;

fig. 4 is an enlarged view of a portion of the area B of fig. 1 in accordance with the present utility model.

In the figure: 1. an explosion-proof crane walking platform; 2. a mounting sleeve; 3. a first fixing column; 4. a second fixing column; 5. a fence panel; 6. a chute; 7. a top stop; 8. a hand wheel; 9. a first rotating shaft; 10. a transmission cavity; 11. a second rotating shaft; 12. a bevel gear; 13. a single threaded rod; 14. a moving block; 15. a guide rod; 16. a limiting block; 17. a limit groove; 18. a positioning block; 19. a positioning groove; 20. and a second mounting sleeve.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a safety fence structure for explosion-proof crane, including explosion-proof crane walking board 1, the intermediate position department of explosion-proof crane walking board 1 upper end has welded first installation cover 2, the both sides of explosion-proof crane walking board 1 upper end have welded second installation cover 20, first installation cover 2 is inside to be fixed with first fixed column 3 through the bolt, and the one end of first fixed column 3 extends to the outside of first installation cover 2, the inside of second installation cover 20 is all fixed with second fixed column 4 through the bolt, and the one end of second fixed column 4 all extends to the outside of second installation cover 20;

the sliding chute 6 is arranged on the two sides of the first fixed column 3 and the inner side of the second fixed column 4, a fence plate 5 is arranged between the first fixed column 3 and the second fixed column 4, and the two ends of the fence plate 5 are in sliding fit with the sliding chute 6;

still include top dog 7, it sets up the top at first fixed column 3 and second fixed column 4, transmission chamber 10 has been seted up to the inside of top dog 7, the inside intermediate position department of transmission chamber 10 is provided with first pivot 9, the one end of first pivot 9 runs through and extends to the outside of transmission chamber 10, and first pivot 9 and transmission chamber 10 threaded connection, the upside of the inside both sides of transmission chamber 10 all rotates and is provided with single threaded rod 13, the one end of single threaded rod 13 is all fixed to be provided with second pivot 11, the outside of single threaded rod 13 all threaded connection has movable block 14, one side of movable block 14 all welds stopper 16, the one end of stopper 16 all runs through and extends to the outside of transmission chamber 10, and stopper 16 all and transmission chamber 10 sliding fit.

During the use, can one end to the both sides of first fixed column 3 with the fence board 5 through spout 6, mention top dog 7 and place the upper end of pushing down at first fixed column 3 and second fixed column 4, rotate the stopper 16 that can make both sides through handheld hand wheel 8 and move into the inside of spacing groove 17, accomplish the fixed to top dog 7, carry out spacingly to fence board 5 through top dog 7 to accomplish the fixed to fence board 5, whole flow can accomplish alone, need not many people's operations, easy operation, the practicality is good.

Referring to fig. 3, the outer wall of the first rotating shaft 9 at one end inside the transmission cavity 10 and one end of the second rotating shaft 11 are fixedly provided with bevel gears 12, the bevel gears 12 are in meshed connection, and the meshed connection of the bevel gears 12 realizes synchronous rotation of the first rotating shaft 9 and the two second rotating shafts 11, so that the two second rotating shafts 11 synchronously rotate, further synchronous rotation of the two single threaded rods 13 is realized, and the operation and the use by a single person are facilitated;

referring to fig. 4, a guide rod 15 is welded below the single threaded rod 13, the guide rods 15 penetrate through the moving block 14, the guide rods 15 are in sliding fit with the moving block 14, the guide rods 15 can enable the moving block 14 to be limited axially, rotation of the moving block 14 is converted into horizontal linear movement, and therefore the limiting block 16 can be driven to be clamped into the limiting groove 17;

referring to fig. 4, the upper ends of one side of the second fixing post 4 are provided with limit grooves 17, the limit grooves 17 are matched with one end of the limit block 16 outside the transmission cavity 10, and after the limit block 16 is clamped into the limit grooves 17, the connection firmness between the second fixing post 4 and the top stop block 7 can be increased;

referring to fig. 2, 3 and 4, the upper ends of the first fixing column 3 and the second fixing column 4 are welded with a positioning block 18, the lower ends of the top stop blocks 7 are provided with three positioning grooves 19 distributed at equal intervals, the positioning grooves 19 are matched with the positioning block 18, the positioning block 18 is clamped into the positioning groove 19 to achieve the primary positioning effect, the stability of the top stop blocks 7 can be improved, and the subsequent fixing is facilitated;

referring to fig. 1, a hand wheel 8 is installed at one end of the first shaft 9 located outside the transmission cavity 10, and the hand wheel 8 is provided with the first shaft 9 which is convenient for the operator to rotate.

Working principle: when in use, the first fixing column 3 and the second fixing column 4 are respectively fixedly connected with the first mounting sleeve 2 and the second mounting sleeve 20 through bolts, the two fence plates 5 are moved to two sides of the first fixing column 3 through the sliding grooves 6, the top stop block 7 is lifted, placed and pressed down at the upper ends of the first fixing column 3 and the second fixing column 4, the positioning block 18 can be clamped into the positioning groove 19 at the moment, the top stop block 7 can be initially fixed, the stability is improved, the subsequent fixation is convenient, the hand wheel 8 is held by a worker to rotate at the moment, the hand wheel 8 can drive the first rotating shaft 9 to rotate, the first rotating shaft 9 can drive one of the conical gears 12 to rotate, the conical gears 12 on two sides are driven to rotate due to the meshed connection, the two second rotating shafts 11 are synchronously rotated, the second rotating shaft 11 rotates to drive the single threaded rod 13 to rotate, so that the synchronous rotation of the two single threaded rods 13 can be realized, the single threaded rods 13 rotate to drive the movable blocks 14 to rotate, and because one end of the movable blocks 14 is in sliding fit with the guide rods 15, the movable blocks 14 are axially limited, the rotation of the movable blocks 14 is converted into horizontal linear movement, when the movable blocks 14 move towards the direction of the fence plate 5, the limiting blocks 16 can be driven to be clamped into the limiting grooves 17, so that the top check blocks 7 and the second fixed columns 4 can be firmly fixed, the fixing of the top check blocks 7 is completed, the fixing of the fence plate 5 is completed, the fixing of the top check blocks 7 can be released only by rotating the hand wheels 8 in the opposite direction when the fence plate 5 is dismounted, the limiting of the fence plate 5 can be lifted up by the top check blocks 7, the dismounting of the fence plate 5 is completed, the whole process can be completed by a single person without a plurality of people, the operation is simple, the practicability is good.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a safety fence structure for explosion-proof crane, includes explosion-proof crane walking board (1), the intermediate position department welding of explosion-proof crane walking board (1) upper end has first installation cover (2), the both sides welding of explosion-proof crane walking board (1) upper end has second installation cover (20), the inside first fixed column (3) that have through the bolt fastening of first installation cover (2), and the outside that one end of first fixed column (3) extends to first installation cover (2), the inside of second installation cover (20) all has second fixed column (4) through the bolt fastening, and the one end of second fixed column (4) all extends to the outside of second installation cover (20), its characterized in that:

the novel fixing device further comprises a sliding groove (6) which is formed in the two sides of the first fixing column (3) and the inner side of the second fixing column (4), a fence plate (5) is arranged between the first fixing column (3) and the second fixing column (4), and two ends of the fence plate (5) are in sliding fit with the sliding groove (6);

still include top dog (7), it sets up the top of first fixed column (3) and second fixed column (4), transmission chamber (10) have been seted up to the inside of top dog (7), the inside intermediate position department of transmission chamber (10) is provided with first pivot (9), the one end of first pivot (9) runs through and extends to the outside of transmission chamber (10), and first pivot (9) and transmission chamber (10) threaded connection, the upside of the inside both sides of transmission chamber (10) all rotates and is provided with single threaded rod (13), the one end of single threaded rod (13) is all fixed and is provided with second pivot (11), the outside equal threaded connection of single threaded rod (13) has movable block (14), one side of movable block (14) all welds stopper (16), the one end of stopper (16) all runs through and extends to the outside of transmission chamber (10), and stopper (16) all with transmission chamber (10) sliding fit.

2. The safety fence structure for an explosion-proof crane according to claim 1, wherein: the outer wall of the first rotating shaft (9) at one end inside the transmission cavity (10) and one end of the second rotating shaft (11) are fixedly provided with conical gears (12), and the conical gears (12) are in meshed connection.

3. The safety fence structure for an explosion-proof crane according to claim 1, wherein: the guide rods (15) are welded below the single threaded rod (13), the guide rods (15) penetrate through the moving blocks (14), and the guide rods (15) are in sliding fit with the moving blocks (14).

4. The safety fence structure for an explosion-proof crane according to claim 1, wherein: the upper end of one side of the second fixed column (4) is provided with a limiting groove (17), and the limiting groove (17) is matched with one end of the limiting block (16) outside the transmission cavity (10).

5. The safety fence structure for an explosion-proof crane according to claim 1, wherein: the upper ends of the first fixing column (3) and the second fixing column (4) are welded with positioning blocks (18), three equally-spaced positioning grooves (19) are formed in the lower end of the top stop block (7), and the positioning grooves (19) are matched with the positioning blocks (18).

6. The safety fence structure for an explosion-proof crane according to claim 1, wherein: and a hand wheel (8) is arranged at one end of the first rotating shaft (9) positioned outside the transmission cavity (10).