Air pipe mounting lift truck

Abstract

The utility model provides an air duct installation lift truck, which comprises a pulley, a support frame, a hollow shaft motor and a lifting support plate, the support frame is arranged on the pulley, the hollow shaft motor is vertically arranged on the support frame, the bottom of the lifting support plate is provided with a main lead screw which vertically extends, and the main lead screw is arranged in a hollow shaft of the hollow shaft motor in a transmission way; a plurality of guide cylinders are vertically arranged on the supporting frame, a plurality of main sliding rods extending downwards are arranged at the bottom of the lifting supporting plate, and the main sliding rods are arranged in the guide cylinders in a one-to-one sliding mode. According to the air pipe installation lifting truck, the air pipe placed on the lifting supporting plate can be conveyed into the air through the hollow shaft motor to be positioned and installed, and therefore the installation convenience of the air pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioner installation, in particular to a duct installation lifting vehicle. Background Art

[0002] In air conditioning installation projects, the installation of air ducts requires a lot of manpower and time. The air ducts are mainly installed in the air through screws or bridge frames, and are assembled section by section along the planned route. The difficulty lies in lifting each section of the air duct into the air and aligning it with the previous section of the air duct, and maintaining the suspended alignment state until it is fixed. The usual practice is to manually send the air duct to the scaffolding, and multiple people work on the scaffolding. At least two people lift the air duct to keep it in the suspended alignment state, and another 1-2 people fix it. However, the area of ​​the scaffolding is limited, and too many people can easily cause safety accidents. It is okay to install a straight air duct, but if you encounter a corner air duct, it is more difficult to maintain the alignment in the air. Not only is it difficult to bear the force, but there is also less space on the scaffolding for people to move around. Utility Model Content

[0003] In view of the defects of the background technology, the utility model proposes a duct installation lifting vehicle, which can automatically lift and hold the duct for positioning and installation, thereby improving the convenience of duct installation.

[0004] The utility model provides a duct installation lifting vehicle, comprising a pulley, a support frame, a hollow shaft motor and a lifting support plate, wherein the support frame is installed on the pulley, the hollow shaft motor is vertically installed on the support frame, a vertically extending main screw is provided at the bottom of the lifting support plate, and the main screw is transmission-installed in the hollow shaft of the hollow shaft motor;

[0005] The support frame is vertically provided with a plurality of guide cylinders, the bottom of the lifting support plate is provided with a plurality of main sliding rods extending downwards, and the plurality of main sliding rods are slidably arranged one by one in the guide cylinders.

[0006] Preferably, the duct installation lifting vehicle further comprises an extension screw and an extension slide rod;

[0007] The extension screw and the main screw have the same diameter and thread. The bottom end of the main screw extends downwardly from a first docking cylinder, a cross slot is provided in the middle of the first docking cylinder, the top end of the extension screw extends upwardly from a second docking cylinder having the same diameter as the first docking cylinder, a cross plug for inserting into the cross slot is provided at the top end of the second docking cylinder, threads are provided on the outside of the first docking cylinder and the second docking cylinder are connected and fixed by a locking nut, and the outer diameter of the locking nut is smaller than the inner diameter of the outer thread of the screw;

[0008] The extended sliding rod and the main sliding rod have the same diameter. The bottom end of the main sliding rod is provided with a bottom screw hole, and the top end of the extended sliding rod is provided with a top screw column for screwing the screw hole.

[0009] Preferably, the lifting support plate includes a pair of side brackets disposed on the left and right sides, each side bracket is provided with a vertical rod at the front and rear ends close to the outer side, and the top of the vertical rod is provided with a thread;

[0010] The lifting support plate also includes a pressure strip with perforations at both ends. The pressure strip spans the air duct and is connected to the vertical poles on the left and right sides of the lifting support plate through the perforations. After the connection, it is tightened by a tightening nut.

[0011] Preferably, the side bracket is telescopically arranged at the bottom of the lifting support plate.

[0012] Preferably, the bottom end of the vertical pole is hinged to the side bracket, the vertical poles at both ends of each side bracket are connected by a cross bar, and the side bracket is also provided with a limit baffle, and the two vertical poles connected by the cross bar are restricted from rotating between the limit baffle and the top surface of the lifting support plate.

[0013] Preferably, the duct installation lifting vehicle further comprises a front bracket telescopically arranged at the front of the lifting support plate and a rear bracket telescopically arranged at the rear of the lifting support plate;

[0014] The front bracket and the rear bracket are used to increase the area of ​​the air duct supported at the front and rear sides of the lifting support plate.

[0015] Preferably, the front bracket is provided with a liftable front supporting plate, and the rear bracket is provided with a liftable rear supporting plate.

[0016] Preferably, when the front support plate is at the initial height, its top surface is on the same plane as the top surface of the lifting support plate, and a fine-tuning screw is provided at the bottom of the front support plate, which extends vertically downward through an adjustment hole provided on the front bracket and an adjustment nut rotatably installed at the bottom of the adjustment hole.

[0017] Preferably, the support frame includes a double ring skeleton and a plurality of support rods, the inner ring and the outer ring of the double ring skeleton are fixedly connected by spokes, the top ends of the plurality of support rods are connected to the bottom of the outer ring at equal angles, the bottom ends of the plurality of support rods are connected to the pulley, and the hollow shaft motor is sleeved in the inner ring.

[0018] Preferably, a group of inverted rod sleeves are evenly distributed on the outer ring, a group of rod sleeves corresponding to the inverted rod sleeves are fixed on the top of the pulley, and each support rod is inserted in a pair of inverted rod sleeves and the rod sleeve.

[0019] The beneficial effects of the utility model include: the air duct installation lifting vehicle can send the air duct placed on the lifting pallet into the air for positioning and installation through a hollow shaft motor; the air duct installation lifting vehicle can also simply fix the air duct through the side brackets on both sides and the pressure strips, realize the front and rear movement of the air duct through the pulley at the bottom, further stabilize the air duct through the front bracket and the rear bracket and adjust the front and rear inclination angle of the air duct, thereby improving the convenience of air duct installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is described in detail below with reference to the embodiments and drawings, wherein:

[0021] Figure 1 It is a three-dimensional schematic diagram of the utility model of the air duct installation lifting vehicle (without the air duct).

[0022] Figure 2 It is a front view of the utility model air duct installation lifting vehicle.

[0023] Figure 3 It is a right side view of the utility model air duct installation lifting vehicle.

[0024] Figure 4 It is a partial enlarged view of the utility model of the air duct installation lifting vehicle.

[0025] Figure 5 It is a schematic diagram of the docking of the main screw and the extension screw.

[0026] Figure 6 It is a schematic diagram of the docking of the main slide bar and the extended slide bar.

[0027] Reference numerals:

[0028] 1-pulley, 2-support frame, 21-guide cylinder, 22-double ring frame, 23-support rod, 24-inverted rod sleeve, 25-rod sleeve, 3-hollow shaft motor, 4-lifting support plate, 41-side bracket, 42-vertical pole, 43-pressure strip, 44-pressure nut, 45-cross bar, 46-limit baffle, 5-main lead screw, 51-extension lead screw, 52-first docking cylinder, 53-cross slot, 54-second docking cylinder, 55-cross plug, 56-locking nut, 6-main slide rod, 61-extension slide rod, 62-bottom screw hole, 63-top stud, 7-front bracket, 71-front support plate, 72-fine-tuning screw, 73-adjustment hole, 74-adjustment nut, 8-rear bracket, 81-rear support plate, 100-air duct. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0031] The principle of the present utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0032] Reference Figure 1-6 The utility model proposes a duct installation lifting vehicle, comprising a pulley 1, a support frame 2, a hollow shaft motor 3 and a lifting support plate 4. The support frame 2 is installed on the pulley 1, the hollow shaft motor 3 is vertically installed on the support frame 2, and a vertically extending main screw 5 is provided at the bottom of the lifting support plate 4, and the main screw 5 is transmission-installed in the hollow shaft of the hollow shaft motor 3; the support frame 2 is vertically provided with a plurality of guide cylinders 21, and a plurality of downwardly extending main slide bars 6 are provided at the bottom of the lifting support plate 4, and the plurality of main slide bars 6 are slidingly arranged one by one in the guide cylinders 21. The duct installation lifting vehicle can send the duct 100 placed on the lifting support plate 4 into the air through the hollow shaft motor 3 for positioning and installation. Among them, the duct installation lifting vehicle can be pushed to the installation site and moved with the progress of the duct installation. When the duct is positioned, the direction can also be changed by moving the pulley 1. When in use, the air duct 100 is lifted from the ground and placed on the lifting support plate 4, and then the hollow shaft motor 3 is turned on to lift the lifting support plate 4. The main slide bar 6 is used to stabilize the lifting support plate 4 to keep it vertically upward to prevent it from tilting sideways.

[0033] In this embodiment, the air duct installation lifting vehicle also includes an extension screw 51 and an extension slide bar 61. The extension screw 51 is used to connect with the main screw, and the extension slide bar 61 is used to connect with the main slide bar 6. They are used when the lifting height of the lifting support plate 4 is insufficient. The extension screw 51 and the main screw 5 have the same diameter and thread. The bottom end of the main screw 5 extends downward from the first docking cylinder 52. The middle part of the first docking cylinder 52 is provided with a cross slot 53. The top end of the extension screw 51 extends upward from the second docking cylinder 54 with the same diameter as the first docking cylinder 52. The top end of the second docking cylinder 54 is provided with a cross plug 55 for inserting into the cross slot 53. The first docking cylinder 52 and the second docking cylinder 54 are provided with threads on the outside, and are connected and fixed by a locking nut 56. The outer diameter of the locking nut 56 is smaller than the inner diameter of the outer thread of the screw. After the cross plug 55 is inserted into the cross slot 53, the extension screw 51 cannot rotate relative to the main screw 5, so that the external threads of the two are kept consistent. The locking nut 56 is used to fix the extended lead screw 51 and the main lead screw 5 to prevent the two from being separated. The outer diameter of the locking nut 56 is smaller than the inner diameter of the outer thread of the lead screw, so that the joint part is not affected by the transmission when passing through the hollow shaft of the hollow shaft motor 3.

[0034] In addition, the extended slide rod 61 and the main slide rod 6 have the same diameter. A bottom screw hole 62 is provided at the bottom end of the main slide rod 6, and a top screw 63 for screwing into the screw hole is provided at the top end of the extended slide rod 61. When docking, align the top screw 63 with the bottom screw hole 62 and then rotate the extended screw rod relatively to achieve docking of the two.

[0035] In this embodiment, the lifting support plate 4 includes a pair of side brackets 41 disposed on the left and right sides, and the side brackets 41 are used to fix the air duct 100. Each pair of side brackets 41 is provided with a vertical rod 42 at the front and rear ends close to the outside, and the top of the vertical rod 42 is provided with a thread. The lifting support plate 4 also includes a pressure strip 43 with perforations at both ends, which spans the air duct 100 and is connected to the vertical rods 42 located on the left and right sides of the lifting support plate 4 through the perforations, and is tightened by a clamping nut 44 after connection. That is, there is a pair of vertical rods 42 installed on a pair of side brackets 41 on the left and right sides of the air duct 100, and there are two pressure strips 43, which can be installed in parallel or crosswise. After installation, the two ends of the pressure strip 43 are penetrated into the vertical rods 42 through the perforations, and the pressure strip 43 is tightly locked against the top of the air duct 100 by the clamping nut 44.

[0036] In this embodiment, the side bracket 41 is telescopically arranged at the bottom of the lifting support plate 4, and the width of the lifting support plate 4 is 600 mm. When the width of the air duct exceeds 600 mm, the side bracket 41 can be pulled out to ensure that a wider air duct can also be successfully fixed.

[0037] In this embodiment, the bottom end of the vertical rod 42 is hinged to the side bracket 41, and the vertical rods 42 at both ends of each pair of side brackets 41 are connected by a cross bar 45. The side bracket 41 is also provided with a limit baffle 46. The two vertical rods 42 connected by the cross bar 45 are limited to rotate between the limit baffle 46 and the top surface of the lifting support plate 4. When the air duct installation lift needs to be loaded and transported, the vertical rod 42 can be laid down on the lifting support plate 4 to reduce the overall height of the air duct installation lift. The vertical rod 42 cannot continue to rotate outward through the limit baffle 46, so the vertical rod 42 usually has only two states: upright and laid down.

[0038] In this embodiment, the duct installation lifting vehicle further includes a front bracket 7 telescopically arranged at the front of the lifting support plate 4 and a rear bracket 8 telescopically arranged at the rear of the lifting support plate 4, and the front bracket 7 and the rear bracket 8 are used to increase the area of ​​the duct at the front and rear sides of the lifting support plate 4. Especially when encountering a corner duct, the stretched front bracket 7 and the rear bracket 8 can effectively increase the front and rear length of the lifting support plate 4 to avoid the risk of the duct tipping over and falling.

[0039] In this embodiment, the front bracket 7 is provided with a liftable front support plate 71, and the rear bracket 8 is provided with a liftable rear support plate 81. This technical solution can be used to adjust the front and rear elevation angles of the installed air duct 100 according to the installation situation of the previous air duct, so as to facilitate the docking and assembly of the two. Specifically, when the front support plate 71 is at the initial height, its top surface is on the same plane as the top surface of the lifting support plate 4, and a fine-tuning screw 72 is provided at the bottom of the front support plate 71. The fine-tuning screw 72 extends vertically downward through the adjustment hole 73 provided on the front bracket 7 and the adjustment nut 74 rotatably installed at the bottom of the adjustment hole 73. The structure of the rear bracket 8 is the same as that of the front bracket 7.

[0040] In this embodiment, the support frame 2 includes a double ring frame 22 and a plurality of support rods 23. The inner ring and the outer ring of the double ring frame 22 are fixedly connected by spokes, the top ends of the plurality of support rods 23 are connected to the bottom of the outer ring at equal angles, the bottom ends of the plurality of support rods 23 are connected to the pulley 1, and the hollow shaft motor 3 is sleeved in the inner ring. The double ring frame 22 can enhance the overall stability of the support frame 2 to prevent the center of gravity from being unstable and tipping over when lifting the air duct.

[0041] In this embodiment, a group of inverted rod sleeves 24 are evenly arranged on the outer ring, a group of rod sleeves 25 corresponding to the inverted rod sleeves 24 are fixed on the top of the pulley 1, and each support rod 23 is inserted into a pair of inverted rod sleeves 24 and rod sleeves 25. This technical solution can support the disassembly of the support frame 2, and after disassembly, the support rods 23 of different heights can be replaced to change the lifting height of the lifting support plate 4 to adapt to a more complex installation environment.

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

Claims

1. A duct installation lifting vehicle, characterized in that: It includes a pulley, a support frame, a hollow shaft motor and a lifting support plate, wherein the support frame is mounted on the pulley, the hollow shaft motor is vertically mounted on the support frame, a vertically extending main screw is provided at the bottom of the lifting support plate, and the main screw is transmission-mounted in the hollow shaft of the hollow shaft motor; The support frame is vertically provided with a plurality of guide cylinders, the bottom of the lifting support plate is provided with a plurality of main sliding rods extending downwards, and the plurality of main sliding rods are slidably arranged in the guide cylinders one by one.

2. The duct installation lifting vehicle according to claim 1, characterized in that: The air duct installation lifting vehicle also includes an extension screw and an extension slide rod; The extension screw and the main screw have the same diameter and thread. The bottom end of the main screw extends downwardly through a first docking cylinder, a cross slot is provided in the middle of the first docking cylinder, the top end of the extension screw extends upwardly through a second docking cylinder having the same diameter as the first docking cylinder, a cross plug for inserting into the cross slot is provided at the top end of the second docking cylinder, the first docking cylinder and the second docking cylinder are provided with threads on the outside and are connected and fixed by a locking nut, the outer diameter of the locking nut is smaller than the inner diameter of the outer thread of the screw; The extended sliding rod and the main sliding rod have the same diameter. A bottom screw hole is provided at the bottom end of the main sliding rod, and a top screw for screwing the screw hole is provided at the top end of the extended sliding rod.

3. The duct installation lifting vehicle according to claim 2, characterized in that: The lifting support plate includes a pair of side brackets arranged on the left and right sides, each side bracket is provided with a vertical rod at the front and rear ends close to the outer side, and the top of the vertical rod is provided with a thread; The lifting support plate also includes a pressure strip with perforations at both ends. The pressure strip spans the air duct and is connected to the vertical poles on the left and right sides of the lifting support plate through the perforations. After the connection, it is tightened by a tightening nut.

4. The duct installation lifting vehicle according to claim 3, characterized in that: The side bracket is telescopically arranged at the bottom of the lifting support plate.

5. The duct installation lifting vehicle according to claim 3, characterized in that: The bottom end of the vertical rod is hinged to the side bracket, and the vertical rods at both ends of each side bracket are connected by a cross bar. The side bracket is also provided with a limit baffle, and the two vertical rods connected by the cross bar are restricted from rotating between the limit baffle and the top surface of the lifting support plate.

6. The duct installation lifting vehicle according to claim 2, characterized in that: The duct installation lifting vehicle further comprises a front bracket telescopically arranged in front of the lifting support plate and a rear bracket telescopically arranged in the rear of the lifting support plate; The front bracket and the rear bracket are used to increase the area of ​​the air duct supported on the front and rear sides of the lifting support plate.

7. The duct installation lifting vehicle according to claim 6, characterized in that: The front support is provided with a liftable front supporting plate, and the rear support is provided with a liftable rear supporting plate.

8. The duct installation lifting vehicle according to claim 7, characterized in that: When the front support plate is at an initial height, its top surface is on the same plane as the top surface of the lifting support plate. A fine-tuning screw is provided at the bottom of the front support plate. The fine-tuning screw extends vertically downward through an adjustment hole provided on the front bracket and an adjustment nut rotatably installed at the bottom of the adjustment hole.

9. The duct installation lifting vehicle according to claim 1, characterized in that: The support frame includes a double ring frame and a plurality of support rods. The inner ring and the outer ring of the double ring frame are fixedly connected by spokes. The top ends of the plurality of support rods are connected to the bottom of the outer ring at equal angles. The bottom ends of the plurality of support rods are connected to the pulley. The hollow shaft motor is sleeved in the inner ring.

10. The duct installation lifting vehicle according to claim 9, characterized in that: A group of inverted rod sleeves are evenly arranged on the outer ring, a group of rod sleeves corresponding to the inverted rod sleeves are fixed on the top of the pulley, and each support rod is inserted into a pair of inverted rod sleeves and a rod sleeve.

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