Building construction hoisting device

Abstract

The utility model provides a building construction hoisting device which comprises a main beam, a base is installed at the lower end of the main beam, an L-shaped pipe is rotatably installed at the upper end of the main beam, a telescopic arm is inserted in the L-shaped pipe, and a manual jack is rotatably installed on the side, close to the main beam, of the lower surface of the L-shaped pipe through a rotating shaft. Two supporting lugs are rotationally installed at the cylinder body end of the manual jack and fixedly connected with a sliding sleeve, two upper supports are symmetrically installed at the lower end of the sliding sleeve, lower supports fixedly connected with a main beam are arranged on the lower sides of the two upper supports, and two supporting springs are installed between the lower supports and the upper supports. A guide hole is formed in the upper surface of the upper support, a support lug is arranged in the guide hole, an indicating rod is installed in the middle of the lower surface of the upper support located on the lower side of the support lug, the indicating rod penetrates through the guide hole, and a limiting seat is arranged on the lower side of the guide hole. And blind hoisting of objects exceeding the maximum bearing weight of the manual jack is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of hoisting devices for building construction, belong to the field of building construction. BACKGROUND

[0002] According to different work requirements and application scenarios, building hoisting device can be divided into multiple types, and the mobile hoisting device is a common one. The mobile hoisting device can adjust the position according to actual needs, has high flexibility, can cover a larger working area, and meets the construction needs of different stages. The application scenarios include but are not limited to material handling, equipment installation and other tasks in the construction site. The mobile hoisting device needs to move the position, so it is equipped with a manual jack. The manual jack is rotatably installed between the boom and the vertically arranged main beam. The manual jack is designed with a maximum load limit. If it exceeds this range, the internal pressure of the hydraulic system will rise sharply, exceeding the bearing capacity of the seal and cylinder, and eventually leading to cylinder explosion. When hoisting goods, the weight of the goods cannot be known, and when the construction personnel hoist more than the maximum load of the manual jack, the manual jack may explode. SUMMARY

[0003] To solve the problems in the background art, the utility model provides a hoisting device for building construction to provide an indication when the manual jack reaches the maximum load, and avoid hoisting goods that exceed the maximum load of the manual jack.

[0004] To achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a hoisting device for building construction, comprising a main beam, a base is installed at the lower end of the main beam, an L-shaped pipe is rotatably installed at the upper end of the main beam, a telescopic arm is inserted into the L-shaped pipe, the telescopic arm is connected to the L-shaped pipe by a latch, a lifting ring is welded to one end of the telescopic arm outside the L-shaped pipe, a manual jack is rotatably installed on the lower surface of the L-shaped pipe near the main beam, two ears are rotatably installed at the cylinder end of the manual jack, the ears are connected and fixed with a sleeve, the sleeve is sleeved on the main beam, two upper supports are symmetrically installed at the lower end of the sleeve, a lower support is arranged at the lower side of each upper support and connected and fixed with the main beam, two supporting springs are installed between the lower support and the upper support, an indicating rod is installed at the middle position of the lower surface of the upper support at the lower side of the ear, a guide hole is formed in the upper surface of the lower support, the indicating rod penetrates the guide hole, a limiting seat is arranged at the lower side of the guide hole, and one end of the limiting seat is connected and fixed with the main beam.

[0005] Further, the lower surface of the lower support is recessed downward to form two limiting holes, two limiting sleeves are installed on the lower surface of the upper support, and the two ends of the supporting spring are respectively installed in the limiting hole and the limiting sleeve.

[0006] Further, the indicating rod is sleeved with a blocking ring fixedly connected with the indicating rod, and the initial spacing between the blocking ring and the guide hole is equal to the initial spacing between the lower end of the indicating rod and the limiting seat.

[0007] Further, the base comprises a connecting seat, the lower end of the main beam is provided with the connecting seat, the lower surface of the connecting seat is provided with a long bottom beam and a short bottom beam, the two ends of the short bottom beam are fixedly connected with U-shaped seats, the U-shaped seats are fixedly connected with the long bottom beam, support arms are arranged in the U-shaped seats, and brake universal wheels are arranged at the ends of the support arms away from the U-shaped seats, the two ends of the long bottom beam and the two ends of the short bottom beam.

[0008] Further, the two symmetrically arranged rib plates are arranged at the upper end of the main beam in a bolt and nut matched mode, and the lower end of the rib plate is connected with the connecting seat through a bolt.

[0009] Further, the handle matched with the manual jack is arranged in the insertion sleeve arranged at the lower part of one side surface of the main beam.

[0010] Further, the first pin hole is arranged at one end of the telescopic arm in the L-shaped pipe, a plurality of second pin holes matched with the first pin hole are arranged on the L-shaped pipe, and a pin is arranged in the channel formed by the first pin hole and the second pin hole.

[0011] The utility model discloses beneficial effects:

[0012] 1. the cylinder end of the manual jack is rotatably arranged on the structure formed by the sliding sleeve, the supporting lug, the upper support, the lower support and the supporting spring, and in the initial state, there is a gap between the lower end of the indicating rod and the limiting seat under the support of the supporting spring, so that when the manual jack is elongated, the article hung on the telescopic arm and the L-shaped pipe can be lifted, at this time, the weight of the article acts on the supporting spring, the sliding sleeve slides downward along the main beam, and when the lower end of the indicating rod contacts the limiting seat, the weight of the article lifted exceeds the maximum load of the manual jack, so that the article lifted needs to be lightened, the indication that the maximum load of the manual jack is reached is realized, the article exceeding the maximum load of the manual jack is avoided from being blindly lifted, the cylinder of the manual jack is prevented from exploding, and the safety is improved.

[0013] 2. when the lower end of the indicating rod contacts the limiting seat, the blocking ring contacts the lower support, so that the force acting on the indicating rod is dispersed on the main beam through the limiting seat and the lower support, and the connecting part of the limiting seat and the main beam is prevented from completely bearing the reaction force brought by the article. DRAWINGS

[0014] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof, taken in conjunction with the accompanying drawings:

[0015] Figure 1 It is a structural schematic view of the building construction hoisting device of the present application;

[0016] Figure 2 It is Figure 1 It is an enlarged view of A in the middle;

[0017] Figure 3 It is an assembly schematic view of the sliding sleeve, supporting spring and main beam in the building construction hoisting device of the present application;

[0018] Figure 4 It is an assembly schematic view of the bolt, lifting ring and telescopic arm in the building construction hoisting device of the present application;

[0019] In the drawing: 1-main beam, 2-tensioning plate, 3-handle, 4-long bottom beam, 5-brake universal wheel, 6-U-shaped seat, 7-supporting arm, 8-short bottom beam, 9-manual jack, 10-second pin hole, 11-bolt, 12-telescopic arm, 13-lifting ring, 14-L-shaped tube, 15-sliding sleeve, 16-ear, 17-upper support, 18-indicator rod, 19-blocking ring, 20-lower support, 21-limiting seat, 22-supporting spring, 23-connection seat, 24-insertion sleeve, 25-limiting sleeve, 26-guiding hole. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0021] Please refer to Figure 1 and Figure 2 The present application provides a technical solution: a building construction hoisting device, comprising a main beam 1, wherein the lower end of the main beam 1 is provided with a base, and the base comprises a connection seat 23, the lower end of the main beam 1 is provided with the connection seat 23, the lower surface of the connection seat 23 is provided with a long bottom beam 4 and a short bottom beam 8, the two ends of the short bottom beam 8 are both connected and fixed with a U-shaped seat 6, the U-shaped seat 6 is connected and fixed with the long bottom beam 4, the U-shaped seat 6 is provided with a supporting arm 7, the end of the supporting arm 7 away from the U-shaped seat 6, the two ends of the long bottom beam 4 and the two ends of the short bottom beam 8 are all provided with a brake universal wheel 5, and the structure formed by the two supporting arms 7, the long bottom beam 4 and the short bottom beam 8 realizes the support of the main beam 1, the design of the brake universal wheel 5 provides convenience for the movement position, and the two symmetrically arranged tensioning plates 2 are installed on the upper end of the main beam 1 in a manner that the upper end of the main beam 1 is provided with the two symmetrically arranged tensioning plates 2 through cooperation of bolts and nuts, the lower end of the tensioning plate 2 is connected with the connection seat 23 through the bolts, and the stability of the overall structure is improved.

[0022] Please refer toFigure 1 and Figure 4 The upper end of the main beam 1 is rotatably installed with an L-shaped pipe 14, the L-shaped pipe 14 is inserted with a telescopic arm 12, the end of the telescopic arm 12 outside the L-shaped pipe 14 is welded with a lifting ring 13, the end of the telescopic arm 12 inside the L-shaped pipe 14 is provided with a first pin hole, the L-shaped pipe 14 is provided with a plurality of second pin holes 10 matched with the first pin hole, a pin 11 is inserted in the channel formed by the first pin hole and the second pin hole 10, the telescopic arm 12 is connected with the L-shaped pipe 14 through the pin 11, and the extension length of the telescopic arm 12 is adjusted.

[0023] Referring to Figures 1-3 The lower surface of the L-shaped pipe 14 is rotatably installed with a manual jack 9 through a rotating shaft near one side of the main beam 1, the cylinder end of the manual jack 9 is rotatably installed with two supporting ears 16, the supporting ears 16 are connected and fixed with a sliding sleeve 15, the sliding sleeve 15 is sleeved on the main beam 1, the lower end of the sliding sleeve 15 is symmetrically installed with two upper supports 17, the lower sides of the two upper supports 17 are provided with lower supports 20 connected and fixed with the main beam 1, the two supporting springs 22 are installed between the lower supports 20 and the upper supports 17, the upper surface of the lower support 20 is concave downward to form two limiting holes, the lower surface of the upper support 17 is installed with two limiting sleeves 25, so that the two ends of the supporting spring 22 are respectively installed in the limiting hole and the limiting sleeve 25, the stability of the installation of the supporting spring 22 is improved, and the insertion sleeve 24 is installed on one side surface of the main beam 1 at a lower position, the handle 3 matched with the manual jack 9 is inserted in the insertion sleeve 24, and the handle 3 is provided with a storage position.

[0024] Referring to Figures 1-3 The upper support 17 at the lower side of the supporting ear 16 is installed with an indicating rod 18 at the middle position of the lower surface, the lower support 20 at the lower side of the supporting ear 16 is provided with a guide hole 26, the indicating rod 18 penetrates through the guide hole 26, the lower side of the guide hole 26 is provided with a limiting seat 21, one end of the limiting seat 21 is connected and fixed with the main beam 1, the cylinder end of the manual jack 9 is rotatably installed on the structure formed by the sliding sleeve 15, the supporting ear 16, the upper support 17, the lower support 20 and the supporting spring 22, in the initial state, under the support of the supporting spring 22, there is a gap between the lower end of the indicating rod 18 and the limiting seat 21, when the manual jack 9 is elongated, the objects hung on the telescopic arm 12 and the L-shaped pipe 14 will be lifted, at this time, the weight of the objects will act on the supporting spring 22, the sliding sleeve 15 will slide downward along the main beam 1, when the lower end of the indicating rod 18 contacts with the limiting seat 21, the weight of the lifted objects exceeds the maximum load of the manual jack 9, the lifted objects need to be lightened, the indication that the maximum load of the manual jack 9 is reached is realized, the objects exceeding the maximum load of the manual jack 9 are avoided to be blindly lifted, the cylinder of the manual jack 9 is prevented from exploding, and the safety is improved.

[0025] Referring to Figure 2The blocking ring 19 is fixedly connected with the indicating rod 18, and the initial distance between the blocking ring 19 and the guide hole 26 is equal to the initial distance between the lower end of the indicating rod 18 and the limiting seat 21; when the lower end of the indicating rod 18 contacts the limiting seat 21, the blocking ring 19 contacts the lower support 20, so that the force acting on the indicating rod 18 is dispersed on the main beam 1 through the limiting seat 21 and the lower support 20, avoiding that the connecting part of the limiting seat 21 and the main beam 1 completely bears the reaction force brought by the articles.

[0026] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A construction hoist comprising a main beam (1), characterised in that: The lower end of the main beam (1) is provided with a base, the upper end of the main beam (1) is rotatably provided with an L-shaped pipe (14), the L-shaped pipe (14) is provided with a telescopic arm (12), the telescopic arm (12) is connected with the L-shaped pipe (14) through a bolt (11), one end of the telescopic arm (12) outside the L-shaped pipe (14) is welded with a lifting ring (13), the lower surface of the L-shaped pipe (14) is rotatably provided with a manual jack (9) through a rotating shaft near one side of the main beam (1), the cylinder end of the manual jack (9) is rotatably provided with two supporting ears (16), the supporting ears (16) are fixedly connected with a sliding sleeve (15), the sliding sleeve (15) is sleeved on the main beam (1), the lower end of the sliding sleeve (15) is symmetrically provided with two upper supports (17), the lower side of each of the two upper supports (17) is provided with a lower support (20) fixedly connected with the main beam (1), the lower support (20) and the upper support (17) are provided with two supporting springs (22), the middle position of the lower surface of the upper support (17) on the lower side of the supporting ear (16) is provided with an indicating rod (18), the lower support (20) on the lower side of the supporting ear (16) is provided with a guide hole (26), the indicating rod (18) penetrates through the guide hole (26), the lower side of the guide hole (26) is provided with a limiting seat (21), one end of the limiting seat (21) is fixedly connected with the main beam (1).

2. A construction hoist according to claim 1, characterised in that: The upper surface of the lower support (20) is concave downward to form two limiting holes, the lower surface of the upper support (17) is provided with two limiting sleeves (25), and the two ends of the supporting spring (22) are respectively arranged in the limiting hole and the limiting sleeve (25).

3. A construction hoist according to claim 1, wherein: The indicating rod (18) is sleeved with a blocking ring (19) fixedly connected with the indicating rod (18), and the initial distance between the blocking ring (19) and the guide hole (26) is equal to the initial distance between the lower end of the indicating rod (18) and the limiting seat (21).

4. A construction hoist according to claim 1, wherein: The base comprises a connecting seat (23), the lower end of the main beam (1) is provided with the connecting seat (23), the lower surface of the connecting seat (23) is provided with a long bottom beam (4) and a short bottom beam (8), the two ends of the short bottom beam (8) are fixedly connected with U-shaped seats (6), the U-shaped seats (6) are fixedly connected with the long bottom beam (4), the U-shaped seats (6) are provided with supporting arms (7), and the ends, away from the U-shaped seats (6), of the long bottom beam (4) and the two ends of the short bottom beam (8) are provided with brake universal wheels (5).

5. A construction hoist according to claim 4, wherein: The upper end of the main beam (1) is provided with two symmetrically arranged rib plates (2) through the cooperation of bolts and nuts, and the lower end of the rib plate (2) is connected with the connecting seat (23) through the bolt.

6. A construction hoist according to claim 1, wherein: The lower part of one side surface of the main beam (1) is provided with a plug-in sleeve (24), and the plug-in sleeve (24) is provided with a handle (3) matched with the manual jack (9).

7. A construction hoist according to claim 1, wherein: The first pin hole is arranged at one end of the telescopic arm (12) in the L-shaped tube (14), a plurality of second pin holes (10) are arranged on the L-shaped tube (14) and matched with the first pin hole, and the channel formed by the first pin hole and the second pin holes (10) is inserted with a pin (11).

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