Auxiliary hoisting structure for air shaft lining air pipe

Abstract

The utility model discloses an auxiliary hoisting structure for a lining air pipe of an air shaft, which belongs to the technical field of air pipe installation, and adopts the technical scheme that the auxiliary hoisting structure for the lining air pipe of the air shaft is characterized by comprising two X-shaped rods made of outer sleeves, inner sleeve rods are inserted into two ends of each outer sleeve, and the inner sleeve rods are connected with the X-shaped rods. A plurality of mutually matched adjusting holes are formed in the inner sleeve rod and the outer sleeve; the adjusting hole in the outermost end of the inner sleeve rod is a hoisting hole or a hoisting rope limiting piece is arranged at the outer end of the inner sleeve rod. The utility model has the beneficial effects that the structure is X-shaped and is made of rigid materials, so that the air pipe is uniformly stressed in the hoisting process, and serious deformation is avoided; the structure can enhance the air pipe hoisting stability in the construction process; the structure is convenient to carry and install, easy to operate and suitable for multi-layer construction; the structure adopts a telescopic loop bar structure and can be suitable for air pipes of various sizes.

Description

Technical Field

[0001] The utility model belongs to the technical field of air duct installation, and particularly relates to an auxiliary hoisting structure for air ducts lined in an air well. Background Art

[0002] During the construction process, ventilation and air conditioning systems are usually connected to the end of each floor system in the form of lined air ducts in the air shaft. Lined air ducts are usually hoisted with a labor-saving device such as a hand chain hoist. The bottom hook of the hand chain hoist extends four ropes and is directly connected to the four corners or two corners of the air duct. This connection method is prone to uneven force on one end during the hoisting process, causing the air duct to be squeezed, stretched and deformed.

[0003] At present, during the construction process, the duct construction team generally uses wider slings to replace the slings, and puts the slings on the bottom of the duct. This method will make the duct easy to shake during the lifting process, and the safety of the lifting cannot be ensured. Another method is to use a sling or sling to wrap around the duct and tighten it. Although this method can fix the duct well, it will also tighten the duct and cause deformation. Therefore, an auxiliary lifting structure for the duct lined with the wind shaft is provided, so that during the vertical lifting process, the shaking of the duct in the suspended state is reduced, and the unbalanced force generated thereby is avoided to cause squeezing and stretching deformation of the duct. Utility Model Content

[0004] The utility model aims to provide an auxiliary hoisting structure for an air duct lined in an air shaft.

[0005] The utility model is realized through the following measures: an auxiliary lifting structure for the air duct lined in an air shaft, characterized in that it includes an X-shaped rod made of two outer sleeves, both ends of the outer sleeves are plugged with inner sleeve rods, and the inner sleeve rods and the outer sleeves are provided with a plurality of adjusting holes that cooperate with each other; the size and number of the adjusting holes on the inner sleeve rod and the outer sleeve are consistent and can cooperate with each other.

[0006] The adjusting hole at the outermost end of the inner sleeve rod is a hoisting hole or the outer end of the inner sleeve rod is provided with a hoisting rope limiter. The inner sleeve rod is matched with the inner side of the outer sleeve and can be freely extended and retracted inside the outer sleeve.

[0007] The two outer sleeves are integrally arranged with an included angle of 90 degrees.

[0008] The centers of the two outer sleeves are connected by bolts.

[0009] The rope limiting member includes a limiting rod, a rectangular opening is provided on the limiting rod, pulley one and pulley two are provided on the rectangular opening, pulley one is rotatably provided on pulley bracket one and the pulley bracket one is fixed on the side wall of the rectangular opening, pulley two is rotatably provided on pulley bracket two and the pulley bracket two is provided on the outer end wall of the rectangular opening through a stud, a stud mounting hole communicating with the rectangular opening is opened at the outer end of the limiting rod, a nut is provided on the stud and located in the rectangular opening through a threaded connection; two nuts can be provided, and the other nut is located on the outer side of the limiting rod.

[0010] The outer end of the inner sleeve rod is provided with an insertion interface, and the end of the limit rod away from the stud is inserted into the insertion interface and fixed by a bolt passing through the adjustment hole at the outermost end of the inner sleeve rod.

[0011] The pulley bracket 1 includes a pulley shaft and mounting plates arranged on both sides of the pulley shaft, an ear plate is fixedly arranged on the inner end wall of the rectangular opening, and the two mounting plates are located on both sides of the ear plate and fixed by bolts. A bolt mounting hole is opened on the side wall of the limit rod and at a position corresponding to the bolt of the pulley bracket 1. The outer diameter of the bolt mounting hole is larger than the outer diameter of the corresponding nut and bolt.

[0012] The pulley bracket 1 includes a U-shaped plate and a pulley shaft arranged on two side plates of the U-shaped plate, and the stud is fixedly arranged on the outer end plate of the U-shaped plate.

[0013] The outer sleeve and the inner sleeve rod are generally made of steel.

[0014] The technical solution provided by the embodiment of the utility model has the following beneficial effects: the structure is in an X shape and is made of a rigid material, so that the air duct is evenly stressed during the hoisting process and no serious deformation occurs; the structure can enhance the stability of the air duct hoisting during the construction process; the structure is easy to carry and install, easy to operate, and suitable for multi-layer construction; the structure adopts a telescopic sleeve structure and can be applied to air ducts of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present utility model, a brief introduction will be given to the drawings used in the embodiments below. Obviously, the drawings listed below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the third embodiment of the utility model;

[0018] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 It is a structural schematic diagram of the suspension rope limiting member in the third embodiment of the utility model;

[0020] Figure 5 It is a reference diagram of the use status of the utility model.

[0021] In the accompanying drawings, the components represented by each number are listed as follows: 1. Outer sleeve; 2. Inner sleeve rod; 3. Rope limiter; 301. Limit rod; 302. Pulley 1; 303. Pulley 2; 304. Pulley shaft; 305. Mounting plate; 306. Pulley 2 bolt; 307. U-shaped plate; 308. Stud; 309. Nut; 30101. Rectangular opening; 30102. Ear plate; 30103. Bolt mounting hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Embodiment 1:

[0024] See also Figure 1-Figure 5 An auxiliary hoisting structure for an air duct lined with an air shaft, characterized in that it comprises an X-shaped rod made of two outer sleeves 1, both ends of the outer sleeve 1 are plugged with inner sleeve rods 2, and the inner sleeve rods 2 and the outer sleeve 1 are provided with a plurality of mutually matching adjustment holes;

[0025] The adjustment hole at the outermost end of the inner sleeve rod 2 is a hoisting hole.

[0026] During the duct hoisting construction, the inner sleeve rod 2 is adjusted to a suitable length for the duct size, and then bolts are passed through the adjustment holes on the inner sleeve rod 2 and the outer sleeve 1 to fix it. Four slings or slings extend from the bottom hook of the hand chain hoist, one end of the four slings or slings is fixed to the bottom hook, and the other end passes through the hoisting holes of the four inner sleeve rods 2 and is fixedly connected to the four corners of the duct respectively.

[0027] The two outer sleeves 1 are integrally arranged and have an included angle of 90 degrees in a cross shape.

[0028] Embodiment 2:

[0029] See also Figure 1-Figure 5An auxiliary hoisting structure for an air duct lined with an air shaft, characterized in that it comprises an X-shaped rod made of two outer sleeves 1, both ends of the outer sleeve 1 are plugged with inner sleeve rods 2, and the inner sleeve rods 2 and the outer sleeve 1 are provided with a plurality of mutually matching adjustment holes;

[0030] The adjusting hole at the outermost end of the inner sleeve rod 2 is a lifting hole. Four lifting ropes or lifting straps extend from the bottom hook of the hand chain hoist. One end of the four lifting ropes or lifting straps is fixed to the bottom hook, and the other end passes through the lifting holes of the four inner sleeve rods 2 and is fixedly connected to the four corners of the air duct respectively.

[0031] The centers of the two outer sleeves 1 are connected by bolts, so that the angle of the X-shaped rod can be adjusted to adapt to air ducts of different sizes.

[0032] Embodiment three:

[0033] See also Figure 1-Figure 5 An auxiliary lifting structure for the air duct lined in an air shaft is characterized in that it includes an X-shaped rod made of two outer sleeves 1, both ends of the outer sleeve 1 are plugged with inner sleeve rods 2, and the inner sleeve rods 2 and the outer sleeve 1 are provided with a plurality of adjusting holes that cooperate with each other; the size and number of the adjusting holes on the inner sleeve rod 2 and the outer sleeve 1 are consistent and can cooperate with each other.

[0034] The outer end of the inner sleeve rod 2 is provided with a rope stopper 3. The inner sleeve rod 2 is matched with the inner side of the outer sleeve 1 and can be freely extended and retracted inside the outer sleeve 1.

[0035] The two outer sleeves 1 are integrally arranged with an included angle of 90 degrees.

[0036] The centers of the two outer sleeves 1 are connected by bolts.

[0037] The rope limiting member 3 includes a limiting rod 301, a rectangular opening 30101 is provided on the limiting rod 301, a pulley 1 302 and a pulley 2 303 are provided on the rectangular opening 30101, the pulley 1 302 is rotatably provided on the pulley bracket 1 and the pulley bracket 1 is fixed on the side wall of the rectangular opening 30101, the pulley 2 303 is rotatably provided on the pulley bracket 2 and the pulley bracket 2 is provided on the outer end wall of the rectangular opening 30101 through a stud 308, a stud 308 mounting hole communicating with the rectangular opening 30101 is opened on the outer end of the limiting rod 301, and a nut 309 is provided on the stud 308 and located in the rectangular opening 30101 through a threaded connection;

[0038] The outer end of the inner sleeve rod 2 is provided with an insertion interface, and the end of the limiting rod 301 away from the stud 308 is inserted into the insertion interface and fixed by a bolt passing through the adjustment hole at the outermost end of the inner sleeve rod 2.

[0039] The pulley bracket 1 includes a pulley shaft 304 and mounting plates 305 arranged on both sides of the pulley shaft 304. An ear plate 30102 is fixedly arranged on the inner end wall of the rectangular opening 30101. The two mounting plates 305 are located on both sides of the ear plate 30102 and are fixed by the pulley second bolt 306. A bolt mounting hole 30103 is opened on the side wall of the limiting rod 301 and at a position corresponding to the bolt of the pulley bracket 1.

[0040] The pulley bracket 1 includes a U-shaped plate 307 and a pulley shaft 304 arranged on two side plates of the U-shaped plate 307, and a stud 308 is fixedly arranged on the outer end plate of the U-shaped plate 307.

[0041] Four slings or slings extend from the bottom hook of the hand chain hoist. One end of the four slings or slings is fixed to the bottom hook, and the other end passes through the two pulleys 1 302 and the pulley 2 303 of the four inner sleeve rods 2, and then is fixedly connected to the four corners of the air duct respectively. Since the two pulleys can rotate, the wear degree of the slings or slings can be reduced, and the service life can be increased. Among them, when the slings or slings pass between the two pulleys, the nut 309 can be screwed to move the pulley 2 303 and adjust the distance between the two pulleys to facilitate the passage of the slings or slings. The slings or slings are located between the grooves of the two pulleys, which can also prevent the slings or slings from detaching.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary hoisting structure for an air duct lined with an air shaft, characterized in that: It comprises an X-shaped rod made of two outer sleeves, both ends of the outer sleeves are plugged with inner sleeve rods, and the inner sleeve rods and the outer sleeves are both provided with a plurality of adjusting holes that cooperate with each other; The adjusting hole at the outermost end of the inner sleeve rod is a hoisting hole or the outer end of the inner sleeve rod is provided with a hoisting rope limiting piece.

2. According to claim 1, the auxiliary hoisting structure for the air duct lined in the air shaft is characterized in that: The two outer sleeves are integrally arranged with an included angle of 90 degrees.

3. According to claim 1, the auxiliary hoisting structure for the air duct lined in the air shaft is characterized in that: The centers of the two outer sleeves are connected by bolts.

4. The auxiliary hoisting structure for the air duct lined in the air shaft according to claim 1 is characterized in that: The rope limiter comprises a limit rod, a rectangular opening is formed on the limit rod, a pulley 1 and a pulley 2 are formed on the rectangular opening, the pulley 1 is rotatably disposed on the pulley bracket 1 and the pulley bracket 1 is fixed on the side wall of the rectangular opening, the pulley 2 is rotatably disposed on the pulley bracket 2 and the pulley bracket 2 is disposed on the outer end wall of the rectangular opening through a stud, a stud mounting hole communicating with the rectangular opening is formed on the outer end of the limit rod, and a nut is provided on the stud and located in the rectangular opening through a threaded connection; The outer end of the inner sleeve rod is provided with an insertion interface, and the end of the limiting rod away from the stud is inserted into the insertion interface and fixed by a bolt passing through the adjustment hole at the outermost end of the inner sleeve rod.

5. The auxiliary hoisting structure for the air duct lined in the air shaft according to claim 4 is characterized in that: The pulley bracket 1 includes a pulley shaft and mounting plates arranged on both sides of the pulley shaft, and an ear plate is fixedly arranged on the inner end wall of the rectangular opening. The two mounting plates are located on both sides of the ear plate and are fixed by bolts.

6. The auxiliary hoisting structure for the air duct lined in the air shaft according to claim 4 is characterized in that: The pulley bracket 1 includes a U-shaped plate and a pulley shaft arranged on two side plates of the U-shaped plate, and the stud is fixedly arranged on the outer end plate of the U-shaped plate.

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