Air pipe installation elevator for central air conditioner installation

Abstract

The utility model relates to the technical field of central air conditioner installation, and discloses an air pipe installation elevator for central air conditioner installation, which comprises a movable bottom plate and a vertical bracket fixed on one side of the top of the movable bottom plate, and further comprises a lifting mechanism arranged in the middle of the interior of the vertical bracket, the positions of the positioning shell and the extrusion shell are adjusted through the moving mechanism to clamp and fix the air pipe, the fixing effect on the air pipe is improved, circular air pipes with different thicknesses can be fixed through the arc-shaped sides of the positioning shell and the extrusion shell, the positioning shell and the extrusion shell are rotated to be replaced with the plane sides, limiting is conducted through the limiting mechanism, and the positioning shell and the extrusion shell are fixed. The square air pipe can be fixed by adjusting the supporting mechanism, the adaptability of the device is improved, the supporting mechanism is adjusted to a proper position, auxiliary supporting is conducted on the air pipe, the stability is improved, the risk that the air pipe shakes and falls off is reduced, and the problems that when part of existing elevators are used, the applicability is low, and the fixing effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning installation, in particular to an air duct installation hoist for central air-conditioning installation. Background Art

[0002] The central air conditioning system consists of one or more cold and heat source systems and multiple air conditioning systems. This system is different from traditional refrigerant air conditioning. It centrally processes air to meet comfort requirements and uses the principle of liquid vaporization refrigeration to provide the required cooling capacity for the air conditioning system to offset the heat load of the indoor environment; the heating system provides the required heat for the air conditioning system to offset the heating and cooling loads of the indoor environment. The duct installation project on the central air conditioner is a very important part of the central air conditioning installation project. The duct is generally located on the upper part of the house, at a high distance from the ground, and the entire duct is composed of multiple sections.

[0003] The air duct needs to be hoisted on the roof during installation. Therefore, in the prior art, an air duct installation hoist is usually used to lift the air duct to the roof for installation personnel to assemble. However, the existing air duct installation hoist has a simple lifting platform structure and low applicability. The square air duct is usually placed flat on the lifting platform for lifting and moving, while the round air duct is placed on the lifting platform with a triangular bracket for lifting and moving. There is no measure to fix the air duct, and the stability of the air duct during lifting is poor. During the lifting process, the air duct may be unstable and shake, resulting in the risk of the air duct slipping and falling. If a rope is used for fixing, it needs to be repeatedly wrapped and knotted for fixing, which is not only time-consuming but also there is a possibility of the rope loosening, posing certain safety hazards. Utility Model Content

[0004] The utility model aims to provide a duct installation hoist for central air-conditioning installation, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a central air conditioner installation duct installation hoist, including a movable bottom plate and a vertical bracket fixed to one side of the top of the movable bottom plate, and also includes:

[0006] A lifting mechanism is arranged in the middle of the vertical bracket, a lifting plate is slidably connected to the surface of one side of the vertical bracket, a moving mechanism is arranged in the middle of the top of the lifting plate, fixed plates are slidably connected to the two sides of the top of the lifting plate, a positioning shell is rotatably connected to the middle of the top of the fixed plate on one side, and an extrusion shell is rotatably connected to the middle of the top of the fixed plate on the other side, and an anti-slip pad is fixedly connected to one side of the arc of the extrusion shell;

[0007] A mounting shell is fixed to the bottom of both sides of the positioning shell and the extrusion shell, a limiting mechanism is arranged inside the mounting shell, guide grooves are opened on both sides of the lifting plate, a moving rod is slidably connected to the inner wall of the guide groove, a connecting rod is hinged on one side of the moving rod, and a supporting mechanism is arranged at the bottom of one side of the connecting rod.

[0008] Preferably, the moving mechanism includes a moving groove opened in the middle of the top of the lifting plate and a bidirectional threaded rod rotating inside the moving groove, one end of the bidirectional threaded rod is fixedly connected to a rocker, and both sides of the surface of the bidirectional threaded rod are threadedly connected to a moving sleeve, and the moving sleeve is slidably connected to the inner wall of the moving groove.

[0009] Preferably, the limiting mechanism includes a telescopic spring fixed to the top of the inner wall of the mounting shell and a limiting rod fixed to the bottom of the telescopic spring, a limiting groove is provided on the top of the fixing plate, the top of one side of the extending limit rod is rotatably connected to a positioning rod, and the bottom of the positioning rod is movably connected to the top of the mounting shell.

[0010] Preferably, the support mechanism includes a fixed bracket fixed to the bottom of the shorter side of the connecting rod and a rotating sleeve rotating inside one side of the fixed bracket, the internal thread of the rotating sleeve is connected to a short threaded rod, and the top of the short threaded rod is fixedly connected to a support shell.

[0011] Preferably, one side of the extruded shell is arc-shaped and has the same curvature as the arc-shaped side of the positioning shell, and both sides of the extruded shell are slidably connected to the inner wall of the positioning shell and used in conjunction with the positioning shell.

[0012] Preferably, the cross-section of the guide groove is T-shaped, and the cross-section of the guide groove is consistent with the shape of the moving rod and is used in conjunction with the moving rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model adjusts the positions of the positioning shell and the extrusion shell by a moving mechanism to clamp and fix the air duct, effectively improving the fixing effect of the air duct, and can fix circular air ducts of different thicknesses through the arc-shaped side of the positioning shell and the extrusion shell, and can fix square air ducts by rotating the positioning shell and the extrusion shell to replace the flat side, thereby improving the adaptability of the device, and limiting the positions through the limiting mechanism after changing the directions of the positioning shell and the extrusion shell to avoid changes in the angles of the positioning shell and the extrusion shell that affect the fixing effect, and adjusting the supporting mechanism to a suitable position can provide auxiliary support for the extended portion of the air duct, thereby improving the stability of the air duct during the lifting process and reducing the risk of shaking and falling off of the air duct, thereby solving the problem that some current hoists have low applicability and poor fixing effect when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a partial three-dimensional structure in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the moving mechanism in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the limiting mechanism in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the moving mechanism and the supporting mechanism in the utility model.

[0020] In the figure: 1. movable base plate; 2. vertical bracket; 3. lifting mechanism; 4. lifting plate; 5. moving mechanism; 51. moving groove; 52. bidirectional threaded rod; 53. rocker; 54. movable sleeve; 6. fixed plate; 7. positioning shell; 8. extrusion shell; 9. anti-skid pad; 10. mounting shell; 11. limiting mechanism; 111. telescopic spring; 112. limiting rod; 113. limiting groove; 114. positioning rod; 12. guide groove; 13. moving rod; 14. connecting rod; 15. supporting mechanism; 151. fixed bracket; 152. rotating sleeve; 153. short threaded rod; 154. supporting shell. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5As shown, a duct installation hoist for central air conditioning installation comprises a movable base plate 1, and a movable wheel is installed at the bottom of the movable base plate 1 to facilitate workers to move the device as a whole. A vertical bracket 2 is fixedly connected to one side of the top of the movable base plate 1, and the vertical bracket 2 is used to install parts. A lifting mechanism 3 is arranged in the middle of the vertical bracket 2, and the lifting mechanism 3 is used to control the lifting of parts on one side, so as to lift the duct, which is convenient for installing the duct of the central air conditioner. A lifting plate 4 is slidably connected to the surface of one side of the vertical bracket 2, and the lifting plate 4 is fixedly connected to the moving part of the lifting mechanism 3, and the lifting plate 4 is used to install parts to lift and transport the duct, and a moving mechanism 5 is arranged in the middle of the top of the lifting plate 4, and the moving mechanism 5 is used to control the parts on both sides of the top to move in opposite directions at the same time. The lifting plate 4 moves in the same direction. Fixed plates 6 are slidably connected to the two sides of the top of the lifting plate 4. The fixed plates 6 are located at the top of the moving mechanism 5. The fixed plates 6 correspond to the parts of the moving mechanism 5. A positioning shell 7 is rotatably connected to the middle of the top of the fixed plate 6 on one side. One side of the positioning shell 7 is set in an arc shape. An extrusion shell 8 is rotatably connected to the middle of the top of the fixed plate 6 on the other side. One side of the extrusion shell 8 is set in an arc shape, and the extrusion shell 8 has the same arc as the arc side of the positioning shell 7. The two sides of the extrusion shell 8 are slidably connected to the inner wall of the positioning shell 7. The positioning shell 7 and the extrusion shell 8 cooperate to extrude and fix the air duct. Air ducts of different diameters can be extruded and fixed. At the same time, the square air duct can be extruded and fixed by adjusting the directions of the positioning shell 7 and the extrusion shell 8 to avoid shaking of the air duct during the lifting process. The device can adapt to air ducts of different shapes, which improves the applicability of the device. An anti-skid pad 9 is fixedly connected to one side of the arc of the extruded shell 8. There are several anti-skid pads 9, which are respectively distributed on the inner and outer sides of the positioning shell 7 and the extruded shell 8. The shape of the anti-skid pad 9 is consistent with the shapes of the two sides of the positioning shell 7 and the extruded shell 8. The anti-skid pad 9 is used to increase friction and improve the fixing effect of the air duct. The bottom of both sides of the extruded shell 8 is fixedly connected with a mounting shell 10. There are four mounting shells 10, which are respectively located below the two sides of the positioning shell 7 and the extruded shell 8, and the mounting shells 10 are symmetrical to each other. The mounting shell 10 is used to install parts, which is convenient for limiting the positioning shell 7 and the extruded shell 8. A limiting mechanism 11 is arranged inside the mounting shell 10, and the number of the limiting mechanisms 11 is the same as that of the mounting shell 10. The shell 10 is consistent with the installation shell 10, and the limiting mechanism 11 is used to limit the positioning shell 7 and the extrusion shell 8 to avoid that the angles of the positioning shell 7 and the extrusion shell 8 are changed arbitrarily after adjusting the directions of the positioning shell 7 and the extrusion shell 8, thereby affecting the fixing effect of the air duct. Guide grooves 12 are provided on both sides of the lifting plate 4, and the cross-sectional shape of the guide groove 12 is T-shaped. The inner wall of the guide groove 12 is slidably connected with a moving rod 13, and the cross-sectional shape of the moving rod 13 is consistent with the guide groove 12. The moving rod 13 and the guide groove 12 can be used together to adjust the position of the parts on one side. A connecting rod 14 is hinged on one side of the moving rod 13, and the connecting rod 14 is composed of two hinged rods of different lengths. A supporting mechanism 15 is provided at the bottom of the shorter side of the connecting rod 14, and the number of the supporting mechanism 15 is two groups.The support mechanism 15 is located on both sides of the lifting plate 4, and is used to provide auxiliary support for the air duct, improve the stability of the air duct when it is moved, and facilitate workers to install the air duct.

[0023] The moving mechanism 5 includes a moving groove 51 opened in the middle of the top of the lifting plate 4, one side of the inner wall of the moving groove 51 is rotatably connected with a two-way threaded rod 52, one end of the two-way threaded rod 52 is fixedly connected with a rocker 53, the rocker 53 is located on one side of the lifting plate 4, and both sides of the surface of the two-way threaded rod 52 are threadedly connected with moving sleeves 54, the moving sleeves 54 are slidably connected to the inner wall of the moving groove 51, the number of moving sleeves 54 and the fixed plate 6 are the same and the positions correspond to each other, the top of the moving sleeve 54 is fixedly connected to the fixed plate 6, when the air duct is clamped and fixed, the two-way threaded rod 52 is controlled to rotate by rotating the rocker 53, and the moving sleeves 54 on both sides are controlled to move inward synchronously, so as to control the positioning shell 7 and the extrusion shell 8 to move inward at the same time to extrude and fix the air duct, and the air ducts of different shapes can be fixed by adjusting the directions of the positioning shell 7 and the extrusion shell 8, which is convenient for operation.

[0024] The limiting mechanism 11 includes a telescopic spring 111 fixed to the top of the inner wall of the mounting shell 10, the bottom of the telescopic spring 111 is fixedly connected to a limiting rod 112, one side of the limiting rod 112 is slidably connected to one side of the inner wall of the mounting shell 10, one side of the limiting rod 112 extends to the outside of the opening of the mounting shell 10, which is convenient for workers to move, the bottom of the limiting rod 112 is cylindrically arranged, and passes through the bottom of the inner wall of the mounting shell 10 and is slidably connected thereto, a limiting groove 113 is provided on the top of the fixing plate 6, the bottom of the limiting rod 112 is movably connected to the inner wall of the limiting groove 113, the number and position of the limiting grooves 113 correspond to the limiting rod 112, the top of the extending side of the limiting rod 112 is rotatably connected to a positioning rod 114, the bottom of the positioning rod 114 is connected to the mounting shell 1 0 is movably connected to the top of the positioning shell 7 or the extrusion shell 8. When limiting the positioning shell 7 or the extrusion shell 8, under the action of the telescopic spring 111, by pushing the side of the limit rod 112 upward, the bottom of the limit rod 112 is disengaged from the inside of the limit groove 113, and then the positioning rod 114 is rotated to make the positioning rod 114 contact with the top of the mounting shell 10 and press against each other, so as to release the limitation of the positioning shell 7 or the extrusion shell 8, and the positioning shell 7 or the extrusion shell 8 can be rotated. Similarly, the positioning rod 114 is rotated again to make it disengage from the top of the mounting shell 10 so that the bottom of the limit rod 112 is embedded in the inside of the limit groove 113, so as to limit the positioning shell 7 and the extrusion shell 8, so as to avoid the positioning shell 7 and the extrusion shell 8. The angle changes when the air duct is fixed to the air duct are avoided, thereby affecting the fixing effect of the air duct.

[0025] The supporting mechanism 15 includes a fixed bracket 151 fixed to the bottom of the shorter side of the connecting rod 14, the fixed bracket 151 is located on one side of the bottom of the shorter side of the connecting rod 14, the internal rotation connection of the fixed bracket 151 on one side is a rotating sleeve 152, the internal thread connection of the rotating sleeve 152 is a short threaded rod 153, the bottom of the short threaded rod 153 is fixedly connected with a control block, and the top of the short threaded rod 153 is fixedly connected with a supporting shell 154, the middle part of the top of the fixed bracket 151 is an arc setting, and the two sides of the top of the fixed bracket 151 are flat settings, which are suitable for supporting square or circular air ducts and are used in conjunction with the positioning shell 7 and the extrusion shell 8. When the air duct is auxiliary supported, the control block at the bottom of the short threaded rod 153 is rotated to control the support shell 154 to move up and down, and the height of the support shells 154 on both sides of the lifting plate 4 can be adjusted respectively. Corresponding adjustments are made according to the height of the air duct, so that the air duct can be more stable during the lifting process.

[0026] It is worth noting that the lifting mechanism 3 proposed in this technical solution is a prior art, and its working principle and beneficial effects when used are not described in detail here.

[0027] Working principle: First, place the air duct between the positioning shell 7 and the extrusion shell 8, then rotate the rocker 53, and control the movable sleeves 54 on both sides and the positioning shell 7 and the extrusion shell 8 above the top fixing plate 6 to move synchronously to the middle to clamp and fix the air duct. When fixing the square air duct, push the limit rod 112 upward to make its bottom out of the inside of the limit groove 113, and then rotate the positioning rod 114 to position the limit rod 112, adjust the limit mechanisms 11 on both sides of the positioning shell 7 and the extrusion shell 8 in turn, release the limit of the positioning shell 7 and the extrusion shell 8, and then rotate the positioning shell 7 and the extrusion shell 8 to make the positioning shell 7 and the extrusion shell 8 One side of the shell 8 faces inward, and the square air duct is squeezed and fixed by the moving mechanism 5. After the air duct is fixed, the support mechanisms 15 on both sides are adjusted according to the length and position of the air duct. If one side of the air duct extends longer, push the moving rod 13 and stretch the connecting rod 14 outward to adjust the position of the support mechanism 15 so that the support mechanism 15 is located below the bottom of the air duct. Then, rotate the short threaded rod 153 to adjust the height of the support shell 154 so that the top of the support shell 154 contacts the bottom of the extended side of the air duct to provide auxiliary support for the air duct. It can be adjusted according to actual usage, and then the lifting plate 4 is controlled by the lifting mechanism 3 to drive the air duct to lift upward.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A duct installation hoist for central air conditioning installation, comprising a movable base plate (1) and a vertical bracket (2) fixed to one side of the top of the movable base plate (1), characterized in that: Also includes: A lifting mechanism (3) is arranged in the middle of the vertical bracket (2); a lifting plate (4) is slidably connected to the surface of one side of the vertical bracket (2); a moving mechanism (5) is arranged in the middle of the top of the lifting plate (4); fixed plates (6) are slidably connected to both sides of the top of the lifting plate (4); a positioning shell (7) is rotatably connected to the middle of the top of the fixed plate (6) on one side; an extrusion shell (8) is rotatably connected to the middle of the top of the fixed plate (6) on the other side; and an anti-slip pad (9) is fixedly connected to one side of the arc of the extrusion shell (8); A mounting shell (10) is fixed to the bottom of both sides of the positioning shell (7) and the extrusion shell (8), a limiting mechanism (11) is arranged inside the mounting shell (10), guide grooves (12) are provided on both sides of the lifting plate (4), a moving rod (13) is slidably connected to the inner wall of the guide groove (12), a connecting rod (14) is hinged on one side of the moving rod (13), and a supporting mechanism (15) is arranged at the bottom of one side of the connecting rod (14).

2. The central air conditioner installation air duct installation hoist according to claim 1, characterized in that: The moving mechanism (5) comprises a moving groove (51) provided in the middle of the top of the lifting plate (4) and a bidirectional threaded rod (52) rotating inside the moving groove (51); one end of the bidirectional threaded rod (52) is fixedly connected to a rocker (53); both sides of the surface of the bidirectional threaded rod (52) are threadedly connected to moving sleeves (54); and the moving sleeves (54) are slidably connected to the inner wall of the moving groove (51).

3. The central air conditioner installation air duct installation hoist according to claim 1, characterized in that: The limiting mechanism (11) comprises a telescopic spring (111) fixed to the top of the inner wall of the mounting shell (10) and a limiting rod (112) fixed to the bottom of the telescopic spring (111); a limiting groove (113) is provided on the top of the fixing plate (6); the top of one side of the extending limit rod (112) is rotatably connected to a positioning rod (114); the bottom of the positioning rod (114) is movably connected to the top of the mounting shell (10).

4. The duct installation hoist for central air conditioner installation according to claim 1, characterized in that: The support mechanism (15) comprises a fixed bracket (151) fixed to the bottom of the shorter side of the connecting rod (14) and a rotating sleeve (152) rotating inside one side of the fixed bracket (151); the internal thread of the rotating sleeve (152) is connected to a short threaded rod (153); and the top of the short threaded rod (153) is fixedly connected to a support shell (154).

5. The duct installation hoist for central air conditioner installation according to claim 1, characterized in that: One side of the extrusion shell (8) is arranged in an arc shape and has the same arc as the arc of one side of the positioning shell (7), and both sides of the extrusion shell (8) are slidably connected to the inner wall of the positioning shell (7) and are used in conjunction with the positioning shell (7).

6. The central air conditioner installation air duct installation hoist according to claim 1, characterized in that: The cross-sectional shape of the guide groove (12) is T-shaped, and the cross-sectional shape of the guide groove (12) is consistent with that of the moving rod (13) and is used in conjunction with the moving rod (13).

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