Adjustable underframe

Abstract

The utility model discloses an adjustable underframe, which relates to the technical field of construction hoists, and is characterized in that a main underframe is formed by combining two groups of parallel transverse rectangular pipes and two groups of parallel longitudinal rectangular pipes, and the two groups of longitudinal rectangular pipes are arranged between the transverse rectangular pipes close to the middle and are fixedly connected; the two groups of auxiliary bottom frames are vertically mounted on the transverse rectangular pipe of the main bottom frame, each group comprises two auxiliary bottom frames, and the two groups of auxiliary bottom frames are arranged back to back; the telescopic assembly is inserted into the tail end of the transverse rectangular pipe of the main bottom frame and used for adjusting the overall length of the main bottom frame in a telescopic mode. The overall length of the main bottom frame can be changed through the telescopic assemblies, the rectangular pipes of the telescopic assemblies and the holes reserved in the main bottom frame are reserved, and bolts are inserted into the hole nuts to be screwed to limit the telescopic assemblies, so that the problems that in the prior art, the lengths of the two ends of the main bottom frame cannot be adjusted, and the main bottom frame is damaged are solved. And the cage cannot be closer to a building, so that the normal operation of equipment is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction hoists, in particular to an adjustable base frame. Background Art

[0002] The bottom cage frame is a key component of the construction elevator. It is located at the bottom of the construction elevator, above the concrete foundation. It is used to connect the construction elevator to the ground and bear all the loads above.

[0003] In the prior art, the Chinese patent with the publication number CN205132814U discloses the invention name of the construction elevator cage frame, which includes a transverse main frame as the main body, and two auxiliary frames 1 and two auxiliary frames 2, and the auxiliary frames 1 and 2 are mirror structures of each other; the middle part of the main frame is fixed to the ground by four anchor bolts symmetrical about its center; the two auxiliary frames 1 are symmetrically connected to the longitudinal sides of the main frame through one end, and are respectively perpendicular to the main frame; the auxiliary frame 2 is symmetrically connected to the longitudinal sides of the main frame through one end, and is respectively perpendicular to the main frame; and the auxiliary frames 1 and 2 located on the same side of the main frame are symmetrical to each other. However, in the prior art, the length of the two ends of the main frame cannot be adjusted, resulting in the cage being unable to get closer to the building, affecting the normal operation of the equipment. Utility Model Content

[0004] The utility model aims to provide an adjustable base frame to solve the problem in the prior art proposed by the above background technology that the lengths of the two ends of the main base frame cannot be adjusted, resulting in the cage being unable to get closer to the building, affecting the normal operation of the equipment.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an adjustable base frame, comprising:

[0006] A main chassis, the main chassis is composed of two groups of parallel transverse rectangular tubes and two groups of parallel longitudinal rectangular tubes, the two groups of longitudinal rectangular tubes are arranged near the middle between the transverse rectangular tubes and are fixedly connected;

[0007] Auxiliary chassis, wherein two groups of auxiliary chassis are vertically mounted on the horizontal rectangular tube of the main chassis, and each group has two auxiliary chassis, and the two groups of auxiliary chassis are arranged back to back;

[0008] A telescopic component is inserted into the end of the horizontal rectangular tube of the main chassis and is used for telescopically adjusting the overall length of the main chassis.

[0009] Preferably, the telescopic assembly includes a cross bar, symmetrical ear plates at both ends of the cross bar, and a rectangular tube whose size matches the horizontal rectangular tube of the main frame; the cross bar and the ear plates at both ends are an integral part, the two rectangular tubes are respectively fixed on the two ear plates, and the two rectangular tubes are movably connected to the horizontal rectangular tube of the main frame.

[0010] Preferably, a plurality of groups of equally spaced openings are provided on the rectangular tube; the openings are provided on the main frame at the movable travel of the rectangular tube, and the openings on the main frame correspond to the openings on the rectangular tube; the rectangular tube is limited by bolts passing through the main frame and the openings on the rectangular tube and connected with nuts.

[0011] Preferably, the telescopic components are symmetrically arranged at both ends of the main chassis.

[0012] Preferably, oblique supports are fixed between the transverse rectangular tubes and the longitudinal rectangular tubes of the main chassis.

[0013] Preferably, the oblique supports are symmetrically arranged in two groups up and down.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model realizes that the overall length of the main frame can be changed through the telescopic component, and reserved openings on the rectangular tube of the telescopic component and the main frame, and the telescopic component is limited by inserting bolts into the openings and tightening nuts, thereby solving the problem in the prior art that the length of the two ends of the main frame cannot be adjusted, resulting in the cage being unable to get closer to the building, affecting the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the telescopic assembly structure of the utility model;

[0018] Figure 3 for Figure 1 Schematic diagram of the local structure.

[0019] In the figure: 1. main frame; 2. auxiliary frame; 3. telescopic assembly; 301. cross bar; 302. ear plate; 303. rectangular tube; 4. opening; 5. oblique support. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 3 The utility model provides an adjustable base frame, which is composed of a main base frame 1, an auxiliary base frame 2 and a telescopic component 3.

[0022] In specific implementation, Figure 1 As shown, the main chassis 1 is composed of two groups of parallel horizontal rectangular tubes and two groups of parallel vertical rectangular tubes. The two groups of vertical rectangular tubes are arranged near the middle between the horizontal rectangular tubes and are fixedly connected.

[0023] As a further improvement, oblique supports 5 are fixed between the transverse rectangular tubes and the longitudinal rectangular tubes of the main chassis 1 ; two groups of oblique supports 5 are symmetrically arranged up and down to increase the overall strength of the main chassis 1 .

[0024] Two groups of auxiliary frames 2 are vertically installed on the horizontal rectangular tube of the main frame 1, and each group has two auxiliary frames. The two groups of auxiliary frames 2 are arranged back to back.

[0025] The telescopic assembly 3 is inserted into the end of the horizontal rectangular tube of the main chassis 1 and is used for telescopically adjusting the overall length of the main chassis 1 .

[0026] Among them, Figure 2 As shown, the telescopic assembly 3 includes a cross bar 301, ear plates 302 symmetrically disposed at both ends of the cross bar 301, and a rectangular tube 303 whose size matches the horizontal rectangular tube of the main chassis 1; the cross bar 301 and the ear plates 302 at both ends are an integral part, the two rectangular tubes 303 are respectively fixed on the two ear plates 302, and the two rectangular tubes 303 are movably connected to the horizontal rectangular tube of the main chassis 1.

[0027] like Figure 3 As shown, a plurality of groups of openings 4 with equal spacing are provided on the rectangular tube 303; an opening 4 is provided at the movable travel of the rectangular tube 303 on the main chassis 1, and the opening 4 on the main chassis 1 corresponds to the opening 4 on the rectangular tube 303; the rectangular tube 303 is limited by bolts penetrating the main chassis 1 and the openings 4 on the rectangular tube 303 and connected with nuts.

[0028] In one embodiment, the telescopic components 3 are symmetrically arranged at two ends of the main chassis 1 .

[0029] It should be noted that: when the length of the main frame 1 does not meet the requirements in actual working conditions, and the connection of the ear plate 302 cannot be achieved, the rectangular tube 303 of the telescopic assembly 3 is pulled out from the main frame 1, and after reaching the appropriate position, the bolts are passed through the openings 4 on the main frame 1 and the rectangular tube 303, and the other end of the bolt is threadedly connected to the nut and tightened to limit the rectangular tube 303. Several groups of openings 4 are set so that they can be applied to different working conditions in actual applications, so that the device can be suitable for different environments.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable chassis, characterized in that: include: A main chassis (1), the main chassis (1) being composed of two groups of parallel transverse rectangular tubes and two groups of parallel longitudinal rectangular tubes, the two groups of longitudinal rectangular tubes being arranged near the middle between the transverse rectangular tubes and fixedly connected; Auxiliary base frames (2), wherein two groups of the auxiliary base frames (2) are vertically mounted on the horizontal rectangular tube of the main base frame (1), and each group has two auxiliary base frames, and the two groups of the auxiliary base frames (2) are arranged back to back; A telescopic component (3) is inserted into the end of the horizontal rectangular tube of the main base frame (1) and is used to telescopically adjust the overall length of the main base frame (1).

2. The adjustable base frame according to claim 1, characterized in that: The telescopic assembly (3) comprises a crossbar (301), ear plates (302) symmetrically disposed at both ends of the crossbar (301), and a rectangular tube (303) having a size matching that of the transverse rectangular tube of the main chassis (1); the crossbar (301) and the ear plates (302) disposed at both ends are an integral part, the two rectangular tubes (303) are respectively fixed to the two ear plates (302), and the two rectangular tubes (303) are movably connected to the transverse rectangular tube of the main chassis (1).

3. The adjustable base frame according to claim 2, characterized in that: The rectangular tube (303) is provided with a plurality of groups of openings (4) at equal intervals; the openings (4) are provided at the movable travel of the rectangular tube (303) on the main base frame (1), and the openings (4) on the main base frame (1) correspond to the openings (4) on the rectangular tube (303); the rectangular tube (303) is limited by bolts penetrating the main base frame (1) and the openings (4) on the rectangular tube (303) and connected with nuts.

4. The adjustable base frame according to claim 3, characterized in that: The telescopic components (3) are symmetrically arranged at two ends of the main base frame (1).

5. The adjustable base frame according to any one of claims 1 to 4, characterized in that: An oblique support (5) is fixed between the transverse rectangular tube and the longitudinal rectangular tube of the main chassis (1).

6. The adjustable base frame according to claim 5, characterized in that: The oblique supports (5) are arranged in two groups symmetrically up and down.

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