Anti-falling mechanical protection device for chassis of vehicle body

Abstract

The utility model relates to the technical field of safety protection equipment, in particular to a vehicle body chassis anti-falling mechanical protection device which comprises a cross beam installed on a bottom column, sliding tables are symmetrically installed at the two ends of the cross beam, guide rails are installed on the sliding tables, and translation supporting frames are installed on the sliding tables. Sliding blocks slidably connected to the guide rails are installed at the bottom of the translation supporting frame, two sets of tire supports are symmetrically installed on the two sides of the translation supporting frame, and a vehicle body chassis is placed on the two sets of tire supports. The translation supporting frame is pulled to drive the translation supporting frame and the tire supports on the two sides of the translation supporting frame to move to the bottom of the lifted vehicle body chassis, then tires at the bottom of the vehicle body chassis are placed in the tire supports respectively, the vehicle body chassis is lifted, and workers can enter the bottom of the vehicle body chassis in a standing posture to conduct overhauling, assembling and other operations. The operation space is increased, the vehicle body chassis is positioned and lifted through the tire support, and the safety of workers is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of safety protection equipment technology, and in particular to a mechanical protection device for preventing vehicle chassis from falling. Background Technology

[0002] Sling-type aerial work platform vehicles are widely used in construction, power, municipal and other fields. The safety of their underframe structure is the core of ensuring the safety of workers.

[0003] Currently, most telescopic aerial work platform vehicles require operations such as replacing oil plugs and installing components under the chassis during chassis frame assembly. Workers typically need to crawl into the confined space beneath the chassis in a supine position to complete these tasks. This supine position not only restricts the range of motion, affecting installation accuracy and efficiency, but also can lead to occupational health problems such as lumbar muscle strain and cervical spine injury due to prolonged abnormal posture. Alternatively, if workers enter the space under the chassis after it has been raised without any protective measures, a sudden collapse of the chassis could occur in the event of hydraulic system failure or mechanical component malfunction, resulting in personnel being crushed and injured, posing a serious safety hazard. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mechanical protection device for preventing vehicle chassis falls. It solves the technical problems of existing technologies where operators must crawl into the narrow space under the chassis in a supine position to complete the work, which affects the accuracy and efficiency of operation, or where there are safety hazards in directly entering the bottom after the chassis is raised without any protective measures. The device expands the operating space under the chassis and lifts the vehicle body, thereby improving operational safety.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a mechanical protection device for preventing the vehicle body chassis from falling, including a crossbeam installed on a base column, slides symmetrically installed at both ends of the crossbeam, guide rails installed on each slide, a translation support frame installed on the slide, and a slider slidably connected to the guide rails installed at the bottom of the translation support frame, two sets of tire brackets symmetrically installed on both sides of the translation support frame, on which the vehicle body chassis is placed, and an auxiliary support mechanism that provides auxiliary support points to prevent the vehicle body chassis from falling due to its own weight is installed at the other end of the translation support frame.

[0006] A further improvement is that the base column includes a base plate connected to the ground by bolts, an L-shaped column is installed on the base plate, and reinforcing ribs are installed at the L-shaped connection point of the L-shaped column and at the connection point between the bottom and the base plate.

[0007] A further improvement is that the tire bracket includes an L-shaped support frame installed on the outer side of the translation support frame, and the L-shaped connection of the L-shaped support frame has a large elevation angle structure. A lifting beam is installed inside the L-shaped support frame, and the lifting beam is located in the middle of the inner side of the L-shaped support frame.

[0008] A further improvement is that the translational support frame is welded together from two steel pipes and a longitudinal horizontal pipe, and the translational support frame is perpendicular to the bottom column.

[0009] A further improvement is that the inner side of the translation support frame is arrayed with multiple sets of insertion and fixing holes, and a insertion seat is installed on the slide, with a spring positioning pin that matches the insertion and fixing hole.

[0010] A further improvement is that the auxiliary support mechanism includes support legs respectively installed at the bottom of the steel pipes on both sides of the translation support frame, a hinge seat is installed at the bottom of the support leg, a rotating leg is hinged on the hinge seat, and a rotating positioning pin is inserted into the positioning hole corresponding to the hinge seat and the rotating leg.

[0011] By employing the above technical solution, this utility model provides a mechanical protection device for preventing vehicle chassis from falling, which has at least the following beneficial effects:

[0012] 1. This utility model involves pulling a translation support frame, which moves the frame and the tire brackets on both sides to the bottom of the raised vehicle chassis. The tires at the bottom of the chassis are then placed inside the tire brackets, lifting the chassis and allowing workers to enter the bottom of the chassis in a standing position for inspection and assembly operations. This increases the operating space, and the tire brackets effectively ensure the safety of workers by positioning and lifting the chassis.

[0013] 2. This utility model fixes the translation support frame by inserting the spring positioning pin into the insertion and fixing hole opened on the inner side of the translation support frame, thereby preventing the translation support frame from shaking during maintenance or assembly.

[0014] 3. This utility model allows the rotating outrigger to be rotated within the hinge seat until it is perpendicular to the ground and touches the ground by pulling out the rotating positioning pin. Then, the rotating positioning pin is inserted into the positioning hole to lock the rotating outrigger, providing a support point for the translation support frame and preventing the translation support frame from bending under the pressure of the vehicle chassis. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model in its static state;

[0019] Figure 3 This is an independent schematic diagram of the base column and its upper structure of this utility model;

[0020] Figure 4 This is an independent schematic diagram of the translational support frame and its upper structure of this utility model;

[0021] Figure 5 This is a bottom view of the translational support frame of this utility model;

[0022] Figure 6 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Base column; 11. Base plate; 12. L-shaped column; 13. Reinforcing rib plate;

[0024] 2. Crossbeam; 3. Slide table; 4. Guide rail;

[0025] 5. Translation support frame; 6. Slider;

[0026] 7. Tire bracket; 71. L-shaped support frame; 72. Lifting beam;

[0027] 8. Vehicle chassis;

[0028] 9. Auxiliary support mechanism; 91. Support leg; 92. Hinge seat; 93. Rotary support leg; 94. Rotary positioning pin;

[0029] 101. Socket; 102. Spring locating pin. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Given the current technology where workers must crawl in a supine position into the confined space under the underframe to complete tasks, affecting operational accuracy and efficiency, or where there are no safety hazards as workers enter the underframe directly after it is raised, this embodiment provides a mechanical protection device for the vehicle underframe to prevent falls. Please refer to [link / reference needed]. Figures 1-6The embodiment provides a mechanical protection device for preventing the vehicle chassis from falling, which can expand the operating space under the chassis and lift the vehicle body, improving operational safety. This mechanical protection device for preventing the vehicle chassis from falling includes a crossbeam 2 mounted on a base column 1. Slides 3 are symmetrically mounted at both ends of the crossbeam 2, and guide rails 4 are mounted on each slide. A translation support frame 5 is mounted on each slide, and a slider 6 is slidably connected to the guide rails 4 at the bottom of the translation support frame 5. Two sets of tire brackets 7 are symmetrically mounted on both sides of the translation support frame 5, and the vehicle chassis 8 is placed on the two sets of tire brackets 7. An auxiliary support mechanism 9 is installed at the other end of the translation support frame 5 to provide auxiliary support points and prevent the vehicle chassis 8 from falling due to its own weight.

[0033] When performing maintenance on the vehicle chassis 8, the chassis 8 is lifted using a lifting device. Then, the translation support frame 5 is pulled, and its bottom slider 6 slides within the guide rail 4 on the slide table 3. This causes the tire brackets 7 on both sides of the translation support frame 5 to move to the bottom of the chassis 8, with each of the four tire brackets 7 corresponding to a tire on the chassis 8. The chassis 8 is then placed inside the tire brackets 7, thus lifting the chassis 8. This allows workers to enter the bottom of the chassis 8 in a standing position for maintenance and assembly operations, increasing the operating space. Furthermore, the positioning and lifting of the chassis 8 using the tire brackets 7 effectively ensures the safety of the workers.

[0034] To ensure that the base column 1 has the strength to support the vehicle chassis 8, the base column 1 in this device includes a base plate 11 connected to the ground by bolts. An L-shaped column 12 is installed on the base plate 11. Reinforcing ribs 13 are installed at the L-shaped connection point of the L-shaped column 12 and at the bottom connection point with the base plate 11. The base plate 11 is fixed to the ground by bolts to prevent the base column 1 from tipping over under the pressure of the self-weight of the vehicle chassis 8 on one side. The reinforcing ribs 13 are used to improve the overall strength of the base column 1.

[0035] To prevent the tires of the vehicle chassis 8 from slipping within the tire bracket 7 and causing a safety accident, the tire bracket 7 in this device includes an L-shaped support frame 71 installed on the outer side of the translation support frame 5. The L-shaped connection of the L-shaped support frame 71 has a large upward angle structure. A lifting beam 72 is installed inside the L-shaped support frame 71, and the lifting beam 72 is located in the middle of the inner side of the L-shaped support frame 71. The bottom tires of the vehicle chassis 8 are placed on the lifting beam 72 inside the L-shaped support frame 71, and there is a certain height difference between the lifting beam 72 and the L-shaped support frame 71, thereby limiting and locking the tires on the tire bracket 7 and preventing the vehicle chassis 8 from slipping on the tire bracket 7.

[0036] The translation support frame 5 is made of two steel pipes and one longitudinal horizontal pipe welded together, which improves the overall strength of the translation support frame 5, and the translation support frame 5 is perpendicular to the bottom column 1.

[0037] To prevent the translation support frame 5 from shaking due to the force applied during the maintenance or assembly of the vehicle body chassis 8, the inner side of the translation support frame 5 is provided with multiple sets of insertion and fixing holes. The slide table 3 is equipped with a insertion seat 101, and the insertion seat 101 is equipped with a spring positioning pin 102 that matches the insertion and fixing hole. After the translation support frame 5 is moved to one side to support the vehicle body chassis 8, the spring positioning pin 102 is inserted into the insertion and fixing hole provided on the inner side of the translation support frame 5 to fix the translation support frame 5 and prevent the translation support frame 5 from shaking during maintenance or assembly.

[0038] Example 2

[0039] Because the chassis frame 8 itself is quite heavy, to avoid bending of the translation support frame 5 due to long-term pressure, therefore, based on embodiment one, as follows: Figures 1-6 As shown, the device is also equipped with an auxiliary support mechanism 9. The auxiliary support mechanism 9 includes support legs 91 respectively installed at the bottom of the steel pipes on both sides of the translation support frame 5. A hinge seat 92 is installed at the bottom of the support leg 91. A rotating support leg 93 is hinged on the hinge seat 92. A rotating positioning pin 94 is inserted into the positioning hole corresponding to the hinge seat 92 and the rotating support leg 93. When the translation support frame 5 is moved to the bottom of the vehicle body frame 8, the rotating positioning pin 94 is pulled out, and the rotating support leg 93 is rotated in the hinge seat 92 until it is perpendicular to the ground and touches the ground. Then the rotating positioning pin 94 is inserted into the positioning hole to lock the rotating support leg 93, providing a support point for the translation support frame 5 and preventing the translation support frame 5 from bending under the pressure of the vehicle body frame 8.

[0040] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical protection device against falling of a car body chassis, comprising a crossbeam (2) mounted on a bottom column (1), characterized in that: The crossbeam (2) is symmetrically equipped with slides (3) at both ends. Each slide (3) is equipped with a guide rail (4). A translation support frame (5) is installed on the slide (3). A slider (6) is slidably connected to the guide rail (4) at the bottom of the translation support frame (5). Two sets of tire brackets (7) are symmetrically installed on both sides of the translation support frame (5). A vehicle chassis (8) is placed on the two sets of tire brackets (7). An auxiliary support mechanism (9) is installed at the other end of the translation support frame (5) to provide auxiliary support points and prevent the vehicle chassis (8) from falling due to its own weight.

2. A mechanical protection device against falling from the underframe of a vehicle body according to claim 1, characterized in that: The base column (1) includes a base plate (11) connected to the ground by bolts. An L-shaped column (12) is installed on the base plate (11). The L-shaped connection point of the L-shaped column (12) and the connection point between the bottom and the base plate (11) are all equipped with reinforcing ribs (13).

3. The mechanical protection device according to claim 1, wherein: The tire bracket (7) includes an L-shaped support frame (71) installed on the outer side of the translation support frame (5), and the L-shaped connection of the L-shaped support frame (71) is a large elevation angle structure. A lifting beam (72) is installed inside the L-shaped support frame (71), and the lifting beam (72) is located in the middle of the inner side of the L-shaped support frame (71).

4. The mechanical protection device according to claim 1, wherein: The translation support frame (5) is made of two steel pipes and a longitudinal horizontal pipe welded together, and the translation support frame (5) is perpendicular to the bottom column (1).

5. The undercarriage fall-protection mechanical device of claim 1, wherein: The inner side of the translation support frame (5) has multiple sets of insertion and fixing holes. The slide table (3) is equipped with a insertion seat (101), and the insertion seat (101) is equipped with a spring positioning pin (102) that matches the insertion and fixing holes.

6. A mechanical protection device against falling from a body frame according to claim 4, characterized in that: The auxiliary support mechanism (9) includes support legs (91) installed on the bottom of the steel pipes on both sides of the translation support frame (5). A hinge seat (92) is installed at the bottom of the support leg (91). A rotating support leg (93) is hinged on the hinge seat (92). A rotating positioning pin (94) is inserted into the positioning hole corresponding to the hinge seat (92) and the rotating support leg (93).

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