Positioning lifting appliance for suspension assembly of prefabricated staircase

Abstract

The utility model discloses a positioning lifting appliance for suspension assembly of a prefabricated stair. The positioning lifting appliance comprises a suspension hook, a suspension beam, a main suspension rope and a lifting rope. The suspension hook is provided with an adjusting mechanism which drives the suspension beam to be adjusted and enables the prefabricated staircase in the suspension state to be in the horizontal state, and the suspension beam is further provided with a fine adjustment mechanism which drives the prefabricated staircase to correspond to the assembly position of the prefabricated staircase. According to the lifting appliance, the prefabricated staircase in a suspended state can be adjusted to be in a horizontal state through the adjusting mechanism, namely, the horizontal state of the prefabricated staircase is well adjusted before the prefabricated staircase is in contact with a mounting position for mounting, so that the two ends of the prefabricated staircase can be positioned and placed at the lower part at the same time, and the mounting efficiency is improved. And through the arrangement of the fine adjustment mechanism, horizontal deviation caused by suspension shaking can be adjusted step by step, so that the prefabricated staircase can vertically and accurately correspond to the mounting position, and the mounting efficiency and accuracy are further improved.

Description

Technical Field

[0001] The present application relates to the technical field of suspension assembly of prefabricated stairs, and in particular to a positioning hanger for suspension assembly of prefabricated stairs. Background Art

[0002] Prefabricated components are steel, wood or concrete components that are prefabricated in factories or on-site according to design specifications. There are many types of prefabricated components, such as prefabricated floor slabs, prefabricated wall panels, prefabricated beams and columns, prefabricated stairs; steel structural components, wooden components, composite panels, etc. The production of prefabricated components adopts an industrialized production model, which can produce multiple components at the same time in a relatively short period of time, greatly improving production efficiency and reducing labor costs. In addition, the production process of prefabricated components ensures the consistency and quality stability of the components. It is an efficient, high-quality, and environmentally friendly building component with broad application prospects and market demand.

[0003] At present, in public buildings, precast concrete components (precast floor slabs, precast wall panels, precast beams and columns, precast stairs) usually need to be suspended for installation, as shown in the attached manual. Figure 1 The installation of the prefabricated staircase shown in the figure. The hoisting device part includes a suspension hook and a suspension beam. The main suspension ropes hanging on the suspension hooks are connected to the two sides of the suspension beam. The lifting ropes connected to the two sides of the prefabricated staircase are also connected to the two sides of the bottom of the suspension beam. The prefabricated staircase is pre-set with a lifting hole connected to the lifting rope. After the lifting rope is connected to the lifting hole through the lifting accessories, the prefabricated staircase can be lifted and placed in the staircase installation position in the building by moving the suspension hook upwards, such as Figure 1-2 shown.

[0004] like Figure 2 As shown in the figure, since the stairs are in a sloped structure after assembly, the heights between the upper and lower sides of the prefabricated stairs and the suspension beam are different, and the inclinations of the stairs in different design structures are different, resulting in the prefabricated stairs not being in a horizontal state after hoisting. For example, after being hoisted to the installation position, Figure 3 After the right side of the prefabricated staircase contacts the installation position, there is still a certain distance between the left side and the installation position. The suspension hook needs to be lowered further to place the left side on the installation position ( Figure 4 shown).

[0005] The suspended staircase is in a shaking and unstable state. Therefore, after placing both ends of the prefabricated staircase on the installation position, the lower end of the prefabricated staircase ( Figure 5The right side of the staircase will deflect in the direction of the arrow, and then it needs to be adjusted again after lifting. However, due to the uneven state of the prefabricated staircase when lifting, when adjusting the right end, it is necessary to lift the left end at the same time. If the left end has been installed in place, the adjustment of the right end will affect the left end, causing the position of the left end to deviate again. In the unstable state after lifting, it is necessary to adjust repeatedly, which makes the installation period of the entire prefabricated staircase too long and increases the construction cost. Summary of the invention

[0006] In response to the above-mentioned problems, the present application aims to provide a positioning hanger for the suspended assembly of prefabricated stairs, which can adjust the prefabricated stairs in a suspended state to a horizontal state through an adjustment mechanism, that is, the horizontal state of the prefabricated stairs is adjusted before contacting and installing them in the installation position, and then the positioning and placement of both ends of the prefabricated stairs can be achieved simultaneously after being lowered, thereby improving the installation efficiency.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is as follows: a positioning hanger for a prefabricated staircase suspension assembly, comprising a suspension hook and a suspension beam, with main suspension ropes suspended on the suspension hooks connected on both sides of the suspension beam, and lifting ropes assembled and connected to both sides of the prefabricated staircase connected on both sides of the bottom of the suspension beam, characterized in that an adjustment mechanism is arranged on the suspension hook to drive the suspension beam to adjust and make the prefabricated staircase in the suspended state in a horizontal state, and a fine-tuning mechanism is also arranged on the suspension beam to drive the prefabricated staircase to correspond to its assembly position.

[0008] Preferably, the adjustment mechanism is a rotating roller which is sleeved on the suspension hook and has a cylindrical structure, and the main suspension rope is pressed against the circumferential surface of the rotating roller.

[0009] Preferably, a bearing is provided on the inner wall of the rotating roller, and a limiting groove for embedding the main suspension rope is provided on the circumferential surface of the rotating roller.

[0010] Preferably, the fine-tuning mechanism is a V-shaped rod hingedly arranged at one end of the suspension beam, and the V-shaped rod includes a driving rod and a fine-tuning rod in contact with the wall.

[0011] The beneficial effect of the present application is that the hanger can adjust the prefabricated stairs in a suspended state to a horizontal state through an adjusting mechanism, that is, the horizontal state of the prefabricated stairs is adjusted before contacting and installing with the installation position, and then the positioning and placement of both ends of the prefabricated stairs can be achieved simultaneously after being lowered, thereby improving the installation efficiency.

[0012] Through the fine-tuning mechanism, the horizontal deviation caused by the suspension shaking can be gradually adjusted (eliminated) so that the prefabricated stairs can accurately correspond vertically to the installation position, thereby further improving the installation efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram of the currently suspended prefabricated stairs being lowered.

[0014] Figure 2 for Figure 1 Figure after lowering.

[0015] Figure 3 This is a diagram of the prefabricated staircase in an uneven state after hoisting and in contact with the installation position on one side.

[0016] Figure 4 For Figure 3 The foundation continues to lower until the left side of the stairs contacts the installation position as shown in the figure.

[0017] Figure 5 Illustration of the prefabricated stairs and the deviation of the installation position.

[0018] Figure 6 Adjust for moving precast stairs upwards Figure 5 Skew state.

[0019] Figure 7 The illustration shows that a rotating roller is mounted on the suspension hook of this application.

[0020] Figure 8 For this application, the main suspension rope is embedded in the rotating roller as shown.

[0021] Fig. 9 This is a diagram of the process of adjusting the horizontal state of the prefabricated stairs in this application in a suspended state.

[0022] Fig.10 For this application Fig. 9 After adjustment, the prefabricated stairs below are moved to the installation position as shown in the figure.

[0023] Fig.11 The illustration shows that the prefabricated stairs for this application are shaking in a suspended state, resulting in a horizontal deviation from the installation position.

[0024] Fig.12 A fine-tuning mechanism diagram is set for this application.

[0025] Fig.13 This is a diagram showing the effect of fine-tuning the level of a prefabricated staircase for this application.

[0026] Fig.14 This is a diagram of the current prefabricated stair suspension assembly.

[0027] In the figure: 7-prefabricated stairs; 8-stair installation position. DETAILED DESCRIPTION

[0028] In order to enable ordinary technicians in the field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Refer to the attached Figures 1 to 13 The shown positioning hoist for a prefabricated staircase suspension assembly comprises a suspension hook 1 and a suspension beam 2, with main suspension ropes 3 suspended on the suspension hook 1 connected to both sides of the suspension beam 2, and lifting ropes 4 assembled and connected to both sides of the prefabricated staircase connected to both sides of the bottom of the suspension beam 2. By connecting the lifting ropes to the lifting holes reserved on the prefabricated staircase (not shown in the figure), the prefabricated staircase can be lifted to the installation position in the building by moving the suspension hook 1 upward.

[0030] In order to solve the problem that when suspending prefabricated stairs, there is a deviation from the installation position due to uneven hoisting, and repeated adjustments are required, such as Fig. 9 As shown, the present application is provided with an adjustment mechanism on the suspension hook 1 to drive the suspension beam 2 to adjust and make the prefabricated staircase in the suspended state in a horizontal state. The adjustment mechanism can adjust the prefabricated staircase in the suspended state to a horizontal state, that is, the horizontal state of the prefabricated staircase is adjusted before contacting and installing with the installation position, such as Fig.10 As shown, the two ends of the prefabricated stairs can be positioned and placed at the same time, thereby improving the installation efficiency.

[0031] like Fig.11 As shown, during the process of hoisting and displacement of the prefabricated stairs, due to the flexibility of the main suspension rope 3 and the lifting rope 4, the prefabricated stairs will have a certain degree of shaking ( Fig.11 Therefore, in order to solve this problem, a fine-tuning mechanism is provided on the suspension beam 2 to drive the prefabricated stairs to correspond to its assembly position. The fine-tuning mechanism can gradually adjust (eliminate) the horizontal deviation caused by the suspension shaking, so that the prefabricated stairs can accurately correspond vertically to the installation position, thereby further improving the installation efficiency and accuracy.

[0032] Specifically, Figure 7-10 As shown, the adjustment mechanism is a rotating roller 5 of a cylindrical structure which is sleeved on the suspension hook 1, and the main suspension rope 3 is pressed against the circumference of the rotating roller 5. The rotating roller 5 can be quickly sleeved and assembled on the suspension hook 1, avoiding the difficulty of improving the suspension hook 1. At the same time, after the rotating roller 5 is disassembled, it does not affect the suspension hook 1 to perform other lifting operations. After the rotating roller 5 is sleeved on the suspension hook 1, the main suspension rope 3 is pressed against the circumference of the rotating roller 5, and then the lifting is carried out after being connected to the prefabricated stairs through the lifting rope 4.

[0033] After the prefabricated stairs are hoisted to the upper side of the installation position, Fig. 9As shown, a driving force is applied to the prefabricated stairs from both sides in the direction of the arrow, so that the main suspension rope 3 drives the rotating roller 5 to rotate on the suspension hook 1 in the direction of the arrow, and the length of the main suspension rope 3 on both sides of the suspension hook 1 is adjusted, so that the prefabricated stairs can be adjusted to a horizontal state, and then as shown in FIG. Fig.10 By moving down as shown, both ends of the prefabricated stairs can contact the installation position at the same time, and the prefabricated stairs can be suspended and installed in one step. By applying driving force to the prefabricated stairs from both sides in the direction of the arrow, the prefabricated stairs below can be used to make the bottom end contact (connect) with the installation position first, and then the length of the main suspension rope 3 on both sides of the suspension hook 1 can be adjusted automatically. Figure 5 If there is a deflection as shown, the deviation can be adjusted during the downward movement through the support of the installer.

[0034] In order to further facilitate the rotation of the rotating roller 5 on the suspension hook 1, a bearing (not shown in the figure) is arranged on the inner wall of the rotating roller 5, and the rotation of the rotating roller 5 can be facilitated by the bearing.

[0035] In order to prevent the main suspension rope 3 from coming off the rotating roller 5, Figure 7 As shown, a limiting groove 5a for embedding the main suspension rope 3 is provided on the circumferential surface of the rotating roller 5. During the rotation of the rotating roller 5 and the adjustment of the main suspension rope 3, the main suspension rope 3 is always kept embedded in the limiting groove 5a to prevent the main suspension rope 3 from coming out.

[0036] To solve the horizontal deviation between the prefabricated stairs and the installation position, such as Figure 12-13 As shown, the fine-tuning mechanism is a V-shaped rod 6 hingedly arranged at one end of the suspension beam 2, and the V-shaped rod 6 includes a driving rod 61 and a fine-tuning rod 62 in contact with the wall. Fig.12 As shown in the figure, when there is a horizontal deviation between the prefabricated stairs and the installation position, the operator standing in the building level inside the installation position can Fig.13 The driving rod 61 is rotated in the direction of the middle arc arrow, so that the end of the fine-tuning rod 62 contacts the wall, thereby driving the prefabricated stairs to move in the direction of the straight arrow, thereby achieving vertical correspondence with the installation position, realizing the fine-tuning effect on the prefabricated stairs, solving the problem of difficulty in stable adjustment through the suspension hook 1, and further improving the assembly efficiency of the prefabricated stairs.

[0037] The principle of the present application is: after the prefabricated stairs are hoisted to the upper side of the installation position, driving force is applied to the prefabricated stairs from both sides, so that the main suspension rope 3 drives the rotating roller 5 to rotate on the suspension hook 1 in the direction of the arrow, and the length of the main suspension rope 3 on both sides of the suspension hook 1 is adjusted, so that the prefabricated stairs can be adjusted to a horizontal state, and then moved downward. When approaching the installation position, the end of the fine-tuning rod 62 is contacted with the wall by rotating the driving rod 61, thereby driving the prefabricated stairs to move and achieve vertical correspondence with the installation position. Continuing to lower the prefabricated stairs can make both ends of the prefabricated stairs contact the installation position at the same time, realizing one-time suspension installation and molding, and improving the assembly efficiency of the prefabricated stairs.

[0038] The above shows and describes the basic principles, main features and advantages of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, which fall within the scope of the present application to be protected.

Claims

1. A positioning sling for suspending a prefabricated staircase, comprising a suspending hook (1) and a suspending beam (2), wherein the suspending beam (2) is connected to two sides thereof with a main suspending rope (3) suspended on the suspending hook (1), and the bottom of the suspending beam (2) is also connected to two sides thereof with a lifting rope (4) assembling and connecting the two sides of the prefabricated staircase, wherein: The suspension hook (1) is provided with an adjustment mechanism for driving the suspension beam (2) to adjust and make the prefabricated staircase in a suspended state in a horizontal state, and the suspension beam (2) is also provided with a fine adjustment mechanism for driving the prefabricated staircase to correspond to its assembly position.

2. The positioning hanger according to claim 1, characterized in that: The adjustment mechanism is a rotating roller (5) which is sleeved on the suspension hook (1) and has a cylindrical structure, and the main suspension rope (3) is pressed against the circumference of the rotating roller (5).

3. The positioning hanger according to claim 2, characterized in that: A bearing is arranged on the inner wall of the rotating roller (5), and a limiting groove (5a) for embedding the main suspension rope (3) is provided on the circumference of the rotating roller (5).

4. The positioning hanger according to claim 3, characterized in that: The fine-adjustment mechanism is a V-shaped rod (6) hingedly arranged at one end of the suspension beam (2), and the V-shaped rod (6) comprises a driving rod (61) and a fine-adjustment rod (62) in contact with the wall.

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