Pit structure applied to mobile elevator

Abstract

A pit structure applied to a movable elevator comprises a movable cabin and a movable derrick installed in the movable cabin, the movable derrick is formed by sequentially splicing a plurality of derrick frames, the movable cabin is provided with a plurality of layers, an installation position is arranged in the movable cabin located on the bottom layer, the installation position upwards penetrates through the movable cabin on the upper layer, and the movable derrick is arranged in the movable cabin on the lower layer. The movable derrick is fixed in the mounting position, four fixing seats are arranged in the mounting position, right-angle caulking grooves are formed in the fixing seats, four pieces of supporting angle steel of the pit frame are embedded into the right-angle caulking grooves respectively to form plane limiting, and connecting seats are arranged on the supporting angle steel. After being embedded, the supporting angle steel is connected to the top of the fixing base through the connecting base to form vertical limiting, the connecting stability between the movable derrick and the movable cabin is improved through the horizontal limiting and vertical limiting effects between the fixing base and the pit frame, and normal operation of an elevator is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile elevator technical field, concretely relates to a bottom pit structure for mobile elevator. BACKGROUND

[0002] With the acceleration of urbanization and the increase of high-rise buildings, the importance of elevators as vertical transportation tools is increasingly prominent. Although the traditional fixed elevator is mature in technology, it has many inconveniences in installation and use in some special occasions, such as temporary buildings, large activity places, construction sites, etc. Therefore, mobile elevators emerge as the times require. In the elevator mobile derrick of the mobile elevator, there is a mobile derrick that is spliced by a multi-layer derrick frame to realize overall installation, so as to improve flexibility and adjustability, adapt to various changes, improve installation efficiency and reduce cost. For reference, please refer to the derrick splicing mode in the mobile villa elevator hall disclosed in Chinese utility model patent application No. 202323026788.7.

[0003] In the above structure, there is a significant problem: the mobile cabin is not designed with a sunken bottom pit structure, which directly leads to the fact that the bottom of the elevator derrick must be fixed directly on the ground of the mobile cabin. However, such a fixing method can cause the connection stability between the elevator derrick and the mobile cabin to be insufficient, which further poses a potential threat to the normal operation of the elevator.

[0004] Furthermore, for safety considerations, the bottom of the elevator derrick usually needs to be equipped with a buffer and shock absorption device. However, in this case, since the derrick is directly fixed to the ground of the mobile cabin, the buffer and shock absorption device can only be installed on the ground. This in turn brings another problem: when the car is lowered to the lowest point, it must hover above the buffer and shock absorption device. This results in the car being too high above the ground after stopping, and in extreme cases, the car may even be higher than the ground of the mobile cabin, which will undoubtedly seriously affect the normal use of the elevator. In order to solve this problem, it may be necessary to redesign the height of the mobile cabin to ensure that the car can maintain an appropriate height from the ground when stopping. However, such a design change will undoubtedly increase the cost of the project, thereby causing unnecessary economic burden. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a bottom pit structure for mobile elevator.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] The application relates to a pit structure applied to a mobile elevator, which comprises a mobile cabin and a mobile derrick installed in the mobile cabin, the mobile derrick is formed by sequentially splicing multiple groups of derrick frames, the mobile cabin is provided with multiple layers, the mobile cabin at the bottom layer is provided with an installation position, the installation position penetrates the mobile cabin at the upper layer upwards, the mobile derrick is fixed in the installation position, the installation position is provided with four fixing bases, the four fixing bases are distributed in a rectangular shape and correspond to four corners of a pit frame respectively, the pit frame comprises four vertical supporting angle steels and four horizontal connecting angle steels, the four connecting angle steels are sequentially connected to the bottom of the four supporting angle steels to form a rectangular bottom frame, the inner side of the fixing base is further provided with a right-angled embedding groove, the four supporting angle steels are embedded into the four right-angled embedding grooves to form planar limiting, the outer side of the four supporting angle steels is further provided with a connecting base respectively, the connecting base is away from the bottom end of the supporting angle steel, after the four supporting angle steels are embedded into the right-angled embedding grooves, the connecting base is connected to the top of the fixing base to form vertical limiting.

[0008] Further, the top of the fixing base is provided with a positioning groove for matching the positioning of the connecting base, and the connecting base is fixed in the positioning groove.

[0009] In the utility model, the bottom frame is further provided with a mounting plate, the mounting plate is provided with a damping and buffering device, the damping and buffering device comprises a first buffering base fixed on the mounting plate and a second buffering base rotatably mounted on the mounting plate, the first buffering base is vertically arranged, the second buffering base is horizontally arranged, the height of the first buffering base is greater than the height of the second buffering base in the horizontal state and is less than the height of the fixing base, the mounting plate is further provided with a driving assembly for driving the second buffering base to stand up in an emergency state, the driving end of the driving assembly is connected with the second buffering base, the driving assembly is further electrically connected with a speed limiter mounted on the car, when the speed limiter monitors that the running speed of the car exceeds the set value, the driving assembly is sent with an electrical signal so as to drive the second buffering base to stand up, and the height of the second buffering base after standing up is greater than the height of the fixing base.

[0010] Further, the mounting plate is provided with a rotating base, a rotating shaft is rotatably mounted on the rotating base, one end of the rotating shaft is connected with the driving assembly, the bottom of the second buffering base is axially slidably fitted in the middle part of the rotating shaft, the lower part of the rotating shaft is further provided with a limiting hole corresponding to the bottom end contour of the second buffering base, the driving assembly drives the second buffering base to stand up through the rotating shaft, after standing up, the second buffering base slides downwards relative to the rotating shaft under the action of gravity and is inserted into the limiting hole to form limiting.

[0011] Further, the lower part of the second buffer seat is provided with an assembly hole penetrating through two sides along the radial direction, the assembly hole extends along the axial direction, the middle part of the rotating shaft is provided with a sliding block, the profile of the sliding block corresponds to the profile of the assembly hole, the sliding block slides in the assembly hole when the second buffer seat slides downward, the rotating shaft is further provided with an arc-shaped stopper on both sides of the sliding block, and the stopper is slidably attached to both sides of the second buffer seat to form a limit.

[0012] In the utility model, the driving assembly includes a driver, a sliding rail, a push block, a rack and a driven gear, the driver is fixed on the mounting plate, the sliding rail is installed on one side of the driver and extends along the driving direction of the driver, the push block is slidably connected on the sliding rail and connected with the driving end of the driver, the rack is installed on the push block, the driven gear is installed on the end of the rotating shaft, the rack is meshed and connected with the driven gear, the driver drives the push block to move along the sliding rail to drive the rack to drive the driven gear to rotate, and the driven gear drives the rotating shaft to rotate when rotating to drive the second buffer seat to stand up.

[0013] The utility model has the advantages and beneficial effects that:

[0014] Four fixing bases are arranged in the installation position, and right-angle embedding grooves are arranged on the fixing bases, four supporting angle steels of the pit frame are embedded into the right-angle embedding grooves to form planar limiting, and connecting seats are further arranged on the supporting angle steels, the supporting angle steels are connected to the top of the fixing base through the connecting seats after embedding to form vertical limiting, the horizontal limiting and the vertical limiting between the fixing base and the pit frame improve the connection stability between the mobile derrick and the mobile cabin, and normal operation of the elevator is ensured.

[0015] In addition, the first buffer seat is vertically arranged, the second buffer seat is horizontally arranged, the height of the first buffer seat is greater than the height of the second buffer seat in the horizontal state and less than the height of the fixing base, and only in an emergency, the second buffer seat is driven to stand up by the driving assembly to buffer and protect the car, so that in a normal state, the car is buffered by the first buffer seat when descending to the bottom, and the height of the car from the bottom surface is less than the height of the fixing base at this time, so that the car is prevented from being too high to affect use, the mobile cabin does not need to be redesigned, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further described below in combination with the drawings and embodiments:

[0017] Figure 1 It is a structural schematic view of the mobile elevator in the embodiment;

[0018] Figure 2 It is a cooperation schematic view of the pit frame and the fixing base in the embodiment;

[0019] Figure 3 For Figure 2 enlarged view of the middle A area;

[0020] Figure 4 is a schematic view of the second buffer seat in a horizontal state in this embodiment;

[0021] Figure 5 is a schematic view of the cooperation between the second buffer seat and the driving assembly in this embodiment;

[0022] Figure 6 is a schematic view of the second buffer seat in a horizontal state in this embodiment. DETAILED DESCRIPTION

[0023] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings of the embodiments of the present application, and the present application is not limited to the following embodiments.

[0024] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0025] In addition, if the embodiments of the present application involve descriptions of “first” or “second” and the like, the descriptions of “first” or “second” and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with “first” or “second” can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0026] As Figures 1 to 6As shown, the embodiment discloses a pit structure applied to a mobile elevator, which comprises a mobile cabin 1 and a mobile derrick 2 installed in the mobile cabin 1, the mobile derrick 2 is sequentially spliced by multiple groups of derrick frames, the mobile cabin 1 is provided with multiple layers, the mobile cabin 1 at the bottom layer is provided with a mounting position 10, the mounting position 10 penetrates the mobile cabin 1 at the upper layer upwards, the mobile derrick 2 is fixed in the mounting position 10, specifically, the mounting position 10 in the mobile cabin 1 at the bottom layer is provided with a fixing seat 11, the bottom of the mobile derrick 2 is provided with a pit frame 20 for being installed on the fixing seat 11, the fixing seat 11 is provided with four, the four fixing seats 11 are distributed in a rectangular shape and correspond to four corners of the pit frame 20 respectively, the pit frame 20 comprises four vertical support angle steels 201 and four horizontal connection angle steels 202, the four connection angle steels 202 are sequentially connected at the bottom of the four support angle steels 201 to form a rectangular bottom frame, the inner side of the fixing seat 11 is further provided with a right-angled embedding groove 110, the four support angle steels 201 are embedded into the four right-angled embedding grooves 110 respectively to form planar limiting, the outer side of the four support angle steels 201 is further provided with a connecting seat 203 respectively, the connecting seat 203 is arranged at a certain height away from the bottom end of the support angle steel 201, when the four support angle steels 201 are embedded into the right-angled embedding groove 110, the connecting seat 203 is connected at the top of the fixing seat 11 to form vertical limiting, preferably, the top of the fixing seat 11 is further provided with a positioning groove 111 for positioning the connecting seat 203, the connecting seat 203 is located in the positioning groove 111.

[0027] Further, the bottom frame is further provided with a mounting plate 21, the mounting plate 21 is provided with a damping and buffering device 22, the damping and buffering device 22 comprises a first buffering seat 221 fixed on the mounting plate 21 and a second buffering seat 222 rotationally installed on the mounting plate 21, the first buffering seat 221 is used for damping and buffering when the car normally stays at the bottom layer, the second buffering seat 222 is used for damping and buffering when the car suddenly drops in an emergency, therefore, under normal circumstances, the first buffering seat 221 is vertically arranged, the second buffering seat 222 is horizontally arranged, and the height of the first buffering seat 221 is greater than the height of the second buffering seat 222 in the horizontal state and is less than the height of the fixing seat 11, the mounting plate 21 is further provided with a driving assembly 23 for driving the second buffering seat 222 to stand up in an emergency state, the driving end of the driving assembly 23 is connected with the second buffering seat 222, the driving assembly 23 is further electrically connected with a speed limiter installed on the car, the speed limiter is a conventional component, therefore, it is not embodied in the drawings, when the speed limiter monitors that the running speed of the car exceeds the set value, an electrical signal is sent to the driving assembly 23 to drive the second buffering seat 222 to stand up, the height of the second buffering seat 222 after standing up is greater than the height of the fixing seat 11.

[0028] Further, in order to ensure that the second buffer seat 222 can play an effective buffering role, a rotating seat 211 is arranged on the mounting plate 21, a rotating shaft 212 is rotatably arranged on the rotating seat 211, one end of the rotating shaft 212 is connected with the driving assembly 23, the bottom of the second buffer seat 222 is axially and slidingly fitted in the middle part of the rotating shaft 212, a limiting hole 213 corresponding to the bottom end contour of the second buffer seat 222 is further arranged below the rotating shaft 212, and the limiting hole 213 is specifically arranged on the mounting plate 21. When the driving assembly 23 drives the second buffer seat 222 to stand up through the rotating shaft 212, the second buffer seat 222 slides downward relative to the rotating shaft 212 under the action of gravity, so that the bottom of the second buffer seat 222 is inserted into the limiting hole 213 to form limiting, thereby ensuring that the second buffer seat 222 cannot deflect to both sides in a stressed state, and thus an effective buffering role can be played. In order to enable the second buffer seat 222 to slide downward, a fitting hole 223 extending along the radial direction and penetrating through both sides is specifically arranged on the lower part of the second buffer seat 222, the fitting hole 223 further extends along the axial direction to form a long strip-shaped hole, a sliding block 214 is arranged on the middle part of the rotating shaft 212, and the contour of the sliding block 214 corresponds to the contour of the fitting hole 223. Specifically, the sliding block 214 is in a flat structure, the two side planes of the sliding block 214 are slidingly fitted on the two inner side planes of the fitting hole 223, and the sliding block 214 slides in the fitting hole 223 when the second buffer seat 222 slides downward. In addition, arc-shaped stop blocks 215 are arranged on both sides of the sliding block 214 on the rotating shaft 212, and the stop blocks 215 are slidingly fitted on both sides of the second buffer seat 222 to form limiting, thereby avoiding deflection of the second buffer seat 222 to both sides.

[0029] In the embodiment, the driving assembly 23 comprises a driver 231, a sliding rail 232, a push block 233, a rack 234 and a driven gear 235. The driver 231 is fixed on the mounting plate 21. The sliding rail 232 is arranged on one side of the driver 231 and extends along the driving direction of the driver 231. The push block 233 is slidingly fitted on the sliding rail 232 and connected with the driving end of the driver 231. The rack 234 is arranged on the push block 233. The driven gear 235 is arranged on the end part of the rotating shaft 212. Specifically, the driver 231 is connected with a speed limiter. The rack 234 is meshingly connected with the driven gear 235. The driver 231 drives the push block 233 to move along the sliding rail 232, thereby driving the rack 234 to drive the driven gear 235 to rotate. When the driven gear 235 rotates, the rotating shaft 212 is driven to rotate, thereby driving the second buffer seat 222 to stand up.

[0030] The above described in the specification is only an example of the present application, the skilled in the art can make various modifications or supplements or adopt similar ways instead of the described specific embodiments, as long as it does not deviate from the content of the specification or beyond the scope defined by the claims, it should belong to the protection scope of the present application.

Claims

1. A pit structure applied to a mobile elevator, comprising a mobile cabin (1) and a mobile shaft frame (2) installed in the mobile cabin (1), the mobile shaft frame (2) is sequentially spliced by multiple groups of shaft frame, the mobile cabin (1) is provided with multiple layers, characterized in that: The mobile cabin (1) at the bottom is provided with a mounting position (10) which penetrates the mobile cabin (1) at the upper layer upwards, the mobile derrick (2) is fixed in the mounting position (10), the mounting position (10) is provided with a fixing seat (11), the bottom of the mobile derrick (2) is provided with a pit frame (20), the fixing seat (11) is provided with four, the four fixing seats (11) are distributed in a rectangular shape and correspond to four corners of the pit frame (20) respectively, the pit frame (20) comprises four vertically arranged support angle steels (201) and four horizontally arranged connecting angle steels (202), the four connecting angle steels (202) are sequentially connected at the bottom of the four support angle steels (201) to form a rectangular bottom frame, the inner side of the fixing seat (11) is further provided with a right-angled embedding groove (110), the four support angle steels (201) are embedded into the four right-angled embedding grooves (110) to form planar limiting, the outer side of the four support angle steels (201) is further provided with a connecting seat (203) respectively, the connecting seat (203) is away from the bottom end of the support angle steel (201), after the four support angle steels (201) are embedded into the right-angled embedding grooves (110), the connecting seat (203) is connected at the top of the fixing seat (11) to form vertical limiting.

2. The pit structure for a mobile elevator according to claim 1, wherein: The top of the fixing seat (11) is provided with a positioning groove (111) for matching the connecting seat (203) positioning, the connecting seat (203) is fixed in the positioning groove (111).

3. The pit structure for a mobile elevator according to claim 1, wherein: The bottom frame is further provided with a mounting plate (21), the mounting plate (21) is provided with a shock absorbing and buffering device (22), the shock absorbing and buffering device (22) comprises a first buffering seat (221) fixed on the mounting plate (21) and a second buffering seat (222) rotationally mounted on the mounting plate (21), the first buffering seat (221) is vertically arranged, the second buffering seat (222) is horizontally arranged, the height of the first buffering seat (221) is greater than the height of the second buffering seat (222) in the horizontal state, the mounting plate (21) is further provided with a driving assembly (23) for driving the second buffering seat (222) to stand up in an emergency state, the driving end of the driving assembly (23) is connected with the second buffering seat (222), the driving assembly (23) is further electrically connected with a speed limiter mounted on the car, when the speed limiter monitors that the running speed of the car exceeds the set value, the driving assembly (23) is sent with an electrical signal so as to drive the second buffering seat (222) to stand up, the height of the second buffering seat (222) after standing up is greater than the height of the fixing seat (11).

4. The pit structure for a mobile elevator according to claim 3, wherein: The mounting plate (21) is provided with a rotating seat (211), the rotating seat (211) is rotatably provided with a rotating shaft (212), one end of the rotating shaft (212) is connected with a driving assembly (23), the bottom of the second buffer seat (222) is axially slidably fitted in the middle of the rotating shaft (212), the lower portion of the rotating shaft (212) is further provided with a limiting hole (213) corresponding to the bottom end contour of the second buffer seat (222), the driving assembly (23) drives the second buffer seat (222) to stand up through the rotating shaft (212), after standing up, the second buffer seat (222) slides downward relative to the rotating shaft (212) under the action of gravity and is inserted into the limiting hole (213) to form limiting.

5. The pit structure for a mobile elevator according to claim 4, wherein: The lower portion of the second buffer seat (222) is provided with an assembly hole (223) penetrating through both sides along the radial direction, the assembly hole (223) extends along the axial direction, the middle portion of the rotating shaft (212) is provided with a sliding block (214), the contour of the sliding block (214) corresponds to the contour of the assembly hole (223), when the second buffer seat (222) slides downward, the sliding block (214) slides in the assembly hole (223), the rotating shaft (212) is further provided with an arc-shaped stop block (215) on both sides of the sliding block (214), the stop block (215) is slidably attached to both sides of the second buffer seat (222) to form limiting.

6. The pit structure for a mobile elevator according to claim 4, wherein: The driving assembly (23) comprises a driver (231), a sliding rail (232), a push block (233), a rack (234) and a driven gear (235), the driver (231) is fixed on the mounting plate (21), the sliding rail (232) is installed on one side of the driver (231) and extends along the driving direction of the driver (231), the push block (233) is slidably fitted on the sliding rail (232) and is connected with the driving end of the driver (231), the rack (234) is installed on the push block (233), the driven gear (235) is installed on the end portion of the rotating shaft (212), the rack (234) is meshingly connected with the driven gear (235), the driver (231) drives the push block (233) to move along the sliding rail (232) so as to drive the rack (234) to drive the driven gear (235) to rotate, when the driven gear (235) rotates, the rotating shaft (212) is driven to rotate so as to drive the second buffer seat (222) to stand up.

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