CN213594223U

CN213594223U - Safety anti-collision device and walking machine

Info

Publication number: CN213594223U
Application number: CN202022311191.7U
Authority: CN
Inventors: 张剑; 卢建旭; 谢忠全; 向小波; 刘桥求
Original assignee: Changsha Broad Homes Industrial Anhui Co ltd
Current assignee: Changsha Broad Homes Industrial Anhui Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-07-02
Anticipated expiration: 2030-10-16

Abstract

The utility model relates to a safe buffer stop and walking machinery. This safe buffer stop includes: the fixed bracket is used for being arranged on the walking machine body; the rotating shaft is rotatably connected to the fixed bracket around the axis of the rotating shaft; the anti-collision bracket is fixedly connected to the rotating shaft; the rotating cam type limit switch comprises a cam and a contact, the cam is arranged on the rotating shaft and rotates along with the rotating shaft, and the contact is used for being electrically connected with a control system for controlling the walking of the walking machine body; wherein, the anticollision support can drive the pivot and rotate around self axis under the exogenic action to drive the cam and rotate in order to trigger the contact. Above-mentioned safe buffer stop is at the in-process of walking machinery body, when the barrier was touch to the anticollision support, the anticollision support received exogenic action and drives the pivot and rotate to drive the cam and rotate in order to trigger the contact, and then make control system control walking machinery body stop the walking, avoid damaging walking machinery body and taking place the incident.

Description

Safety anti-collision device and walking machine

Technical Field

The utility model relates to an assembly type structure makes technical field, especially relates to a safe buffer stop and walking machinery.

Background

The fabricated building is a building which is formed by transferring a large amount of field operation work in the traditional construction mode to a factory, processing and manufacturing building components and accessories (such as floor slabs, wall slabs, stairs, balconies and the like) in the factory, transporting the components and accessories to a building construction site, and assembling and installing the components and the accessories on the site in a reliable connection mode.

In the production process of the concrete prefabricated part, traveling machines such as an overhead hanging type feeding trolley, a comprehensive transport vehicle, a hydraulic transverse moving vehicle and the like are widely used for conveying the concrete or the concrete prefabricated part. However, the production workshop environment of the concrete prefabricated part is complex, and the walking machinery is easy to collide in the walking process, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

On the basis, the safety anti-collision device and the walking machine which overcome the defects are provided for solving the problems that the environment of a production workshop of the concrete prefabricated part is complex, the walking machine is easy to collide in the walking process and potential safety hazards exist in the prior art.

A safety bump guard, comprising:

the fixed bracket is used for being arranged on the walking machine body;

the rotating shaft is rotatably connected to the fixed bracket around the axis of the rotating shaft;

the anti-collision bracket is fixedly connected to the rotating shaft; and

the rotary cam type limit switch comprises a cam and a contact, the cam is arranged on the rotating shaft and rotates along with the rotating shaft, and the contact is used for being electrically connected with a control system for controlling the walking of the walking machine body;

the anti-collision support can drive the rotating shaft to rotate around the axis of the anti-collision support under the action of external force, so that the cam is driven to rotate to trigger the contact, and the control system controls the walking machine body to stop walking.

In one embodiment, the safety collision avoidance device further comprises an elastic piece, and two opposite ends of the elastic piece abut against the collision avoidance support and the fixed support respectively.

In one embodiment, the number of the elastic parts is multiple, and the elastic parts are arranged at intervals along the direction parallel to the axis of the rotating shaft;

the elastic piece is a spring.

In one embodiment, the anti-collision support comprises an opposite connecting end and an anti-collision end, the connecting end is fixedly connected to the rotating shaft, and the anti-collision end extends towards one side of the fixed support, which is far away from the walking machine body, obliquely relative to the connecting end.

In one embodiment, the connecting end of the crash bracket has at least two connecting lugs;

the number of the rotating shafts is at least two, and the at least two rotating shafts are connected to the fixed support in a rotatable manner around the axis of the at least two rotating shafts and are coaxially arranged; the connecting support lugs are in one-to-one correspondence with the rotating shafts, each connecting support lug is fixedly connected to the corresponding rotating shaft, and the cam is installed on any one of the rotating shafts.

In one embodiment, the safety anti-collision device further comprises a bearing fixing seat and a bearing, the bearing fixing seat is fixedly connected to the fixing support, and the rotating shaft is assembled on the bearing fixing seat through the bearing.

In one embodiment, the cam is mounted to the shaft by a coupling.

In one embodiment, the rotating shaft has a preset triggering position in the process of rotating around the axis of the rotating shaft, and when the rotating shaft rotates to the triggering position, the cam triggers the contact.

A walking machine comprises a walking machine body, a control system and the safety anti-collision device in any embodiment.

In one embodiment, the control system includes a power control circuit for controlling power, the contacts being connected in series to the power control circuit such that when the cam actuates the contacts, the contacts open the power control circuit.

Above-mentioned safe buffer stop and walking machinery is through installing the fixed bolster on the walking machinery body for the fixed bolster removes along with the walking machinery body. In the process of walking machinery body, when the barrier was touch to the anticollision support, the anticollision support received exogenic action and drives the pivot and rotate to drive the cam and rotate in order to trigger the contact, and then make control system control walking machinery body stop the walking, avoid damaging walking machinery body and take place the incident.

Drawings

Fig. 1 is a schematic structural view of a walking machine according to an embodiment of the present invention;

fig. 2 is a plan view of the crash barrier of the walking machine shown in fig. 1 (the fixing bracket is omitted).

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, a safety collision avoidance device 20 according to an embodiment of the present invention includes a fixing bracket 21, a rotating shaft 22, a collision prevention bracket 23, and a rotating cam type limit switch 24.

The fixed bracket 21 is mounted on the traveling machine body 10 so as to move with the traveling machine body 10. The rotary shaft 22 is rotatably connected to the fixed bracket 21 about its axis. The crash support 23 is fixedly connected to the rotating shaft 22 so that the crash support 23 can rotate synchronously with the rotating shaft 22. The rotary cam type limit switch 24 includes a cam and a contact, and the cam is mounted on the rotary shaft 22 to rotate with the rotary shaft 22. The contact may be mounted on the fixed bracket 21 and used for electrical connection with a control system for controlling the traveling of the traveling machine body 10. The anti-collision support 23 can drive the rotating shaft 22 to rotate around the axis thereof under the action of external force, so as to drive the cam to rotate to trigger the contact, and further enable the control system to control the walking machine body 10 to stop walking.

The safety collision avoidance device 20 is configured such that the fixing bracket 21 is attached to the traveling machine body 10, so that the fixing bracket 21 moves along with the traveling machine body 10. In the walking process of the walking machine body 10, when the anti-collision support 23 touches the obstacle, the anti-collision support 23 is under the action of external force to drive the rotating shaft 22 to rotate, so as to drive the cam to rotate to trigger the contact (i.e. the contact is switched on or off), and further to enable the control system to control the walking machine body 10 to stop walking, thereby avoiding damage to the walking machine body 10 and safety accidents.

It should be noted that, the rotary cam type limit switch 24 has the advantages of flexibly adjusting the action area, high safety and stability, etc., so that the utility model discloses a safety anti-collision device 20 simple structure, flexible action, safety and reliability, excellent in use effect.

It should be noted that, as a preferred embodiment, the fixing bracket 21 may be fixedly connected to the front end of the walking machine body 10, so that the bumper device 20 protects the front end of the walking machine body 10 during the forward movement of the walking machine body 10. In other embodiments, the fixed bracket 21 may also be fixedly connected to the rear end of the walking machine body 10, and of course, the fixed bracket 21 may also be fixedly connected to both sides of the walking machine body 10, which is not limited herein.

In the embodiment, the rotating shaft 22 has a preset triggering position during the rotation around its axis. When the shaft 22 is rotated to the activated position, the cam activates the contacts. Therefore, only when the anti-collision support 23 drives the rotating shaft 22 to rotate to the preset triggering position, the cam is driven to rotate so as to trigger the contact, so that the false triggering of the cam and the contact caused by the self-shaking of the anti-collision support 23 can be effectively prevented, and the reliability of the safety anti-collision device 20 is further improved. Further, the anti-collision bracket 23 drives the rotating shaft 22 to rotate around the axis thereof by a preset angle under the action of an external force, and then reaches the triggering position. The preset angle may be set by operating the rotary cam type limit switch 24 according to actual conditions, and is not limited herein, and may be set to, for example, 2 °, 3 °, 4 °, 5 °, or 10 °.

The embodiment of the utility model provides an in, safe buffer stop 20 still includes elastic component 25, and the relative both ends of this elastic component 25 butt respectively on crashproof support 23 and fixed bolster 21. Thus, when the collision avoidance support 23 collides with an obstacle, the rotating shaft 22 is driven to rotate (at this time, the elastic piece 25 is compressed by the collision avoidance support 23 and the fixed support 21, so as to play a role of buffering), and then the cam of the rotating cam type limit switch 24 is driven to rotate to trigger the contact, so that the reliability of the safety collision avoidance device 20 is further improved. Alternatively, the elastic member 25 may be a spring.

Further, the number of the elastic members 25 may be one or more. When the number of the elastic members 25 is plural, the plural elastic members 25 are arranged at intervals in a direction parallel to the axis of the rotation shaft 22. It is understood that a plurality herein refers to two or more.

In the embodiment, the anti-collision bracket 23 includes the opposite connection end 231 and the anti-collision end 232, the connection end 231 is fixedly connected to the rotation shaft 22, and the anti-collision end 232 extends obliquely toward the side of the fixed bracket 21 away from the walking machine body 10 relative to the connection end 231. Further, the connecting end 231 of the crash bracket 23 has at least two connecting lugs 233. The number of the rotating shafts 22 is at least two, and at least two rotating shafts 22 are connected to the fixed support 21 in a rotatable manner around the axes of the rotating shafts 22 and are coaxially arranged. The at least two connecting lugs 233 correspond to the at least two rotating shafts 22 one by one, each connecting lug 233 is fixedly connected to the corresponding rotating shaft 22, and the cam of the rotating cam type limit switch 24 is installed on any one rotating shaft 22 of the at least two rotating shafts 22. Therefore, the rotation of the anti-collision bracket 23 is more flexible and reliable, and the reliability of the anti-collision safety device 20 is further improved. Specifically, in the embodiment shown in fig. 2, the number of the connecting lugs 233 is two, and the number of the rotating shafts 22 is also two.

It should be noted that the crash-proof bracket 23 may be formed by connecting criss-cross crossbars and vertical bars, and of course, the crash-proof bracket 23 may also be formed by connecting in other manners, which is not limited herein. The crash support 23 may be made of a material that is light and not easy to deform, such as an aluminum alloy section, and is not limited herein.

The embodiment of the utility model provides an in, safety buffer stop 20 still includes bearing fixing base 26 and bearing 27. The bearing fixing seat 26 is fixedly connected to the fixing support 21, and the rotating shaft 22 is assembled on the bearing fixing seat 26 through the bearing 27, so that the rotating shaft 22 can be rotatably installed on the fixing support 21 around the axis of the rotating shaft 22. In this way, the bearing 27 and the bearing fixing seat 26 are used to mount the rotating shaft 22, so that the rotating shaft 22 can flexibly and stably rotate around the axis thereof.

In an embodiment of the present invention, the cam of the rotating cam type limit switch 24 may be mounted on the rotating shaft 22 through a coupling 28. In this way, the shaft coupling 28 is used to connect the rotating shaft 22 and the cam of the rotating cam type limit switch 24, so that the transmission between the rotating shaft 22 and the cam of the rotating cam type limit switch 24 is stable and reliable, and the cost is low.

Based on above-mentioned safe buffer stop 20, the utility model discloses still provide a walking machinery, including walking machinery body 10 and as above in arbitrary embodiment safe buffer stop 20.

In a specific embodiment, the walking machine further comprises a control system, and the contacts of the rotating cam type limit switch 24 are electrically connected with the control system, so that when the cam of the rotating cam type limit switch 24 triggers the contacts, the control system controls the walking machine body 10 to stop walking. Further, the control system includes an electric energy control circuit connected to the motor and the power supply, the power supply supplies electric energy to the motor through the electric energy control circuit, and the motor is used for driving the walking machine body 10 to walk. The contacts of the rotary cam type limit switch 24 are connected in series in the power control circuit. When the cam of the rotating cam type limit switch 24 triggers the contact, the contact of the rotating cam type limit switch 24 disconnects the electric energy control circuit, so that the power supply is disconnected from the motor, and the motor cannot drive the walking machine body 10 to continue walking.

Further, the traveling machine body 10 further includes a brake electrically connected to the control system, and the control system controls the brake to brake the traveling machine body 10 when the cam of the cam type limit switch 24 is rotated to trigger the contact.

It should be noted that the control system, the electric energy control circuit and the brake may adopt a mature prior art, and therefore, the detailed description thereof is omitted.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A safety bump guard, comprising:

a fixed bracket (21) for mounting on the traveling machine body (10);

the rotating shaft (22) is rotatably connected to the fixed bracket (21) around the axis of the rotating shaft;

the anti-collision support (23) is fixedly connected to the rotating shaft (22); and

the rotary cam type limit switch (24) comprises a cam and a contact, the cam is mounted on the rotating shaft (22) to rotate along with the rotating shaft (22), and the contact is used for being electrically connected with a control system for controlling the walking of the walking machine body (10);

the anti-collision support (23) can drive the rotating shaft (22) to rotate around the axis of the anti-collision support under the action of external force, so that the cam is driven to rotate to trigger the contact, and the control system controls the walking machine body (10) to stop walking.

2. The crash safety device according to claim 1, characterized in that the crash safety device (20) further comprises an elastic member (25), and opposite ends of the elastic member (25) abut against the crash support (23) and the fixing support (21), respectively.

3. The crashworthy safety device according to claim 2, wherein the number of the elastic members (25) is plural, and the plural elastic members (25) are arranged at intervals in a direction parallel to the axis of the rotating shaft (22);

the elastic piece (25) is a spring.

4. A crash safety device according to claim 1, characterized in that the crash support (23) comprises opposite connecting ends (231) and crash ends (232), the connecting ends (231) being fixedly connected to the rotation shaft (22), the crash ends (232) extending obliquely relative to the connecting ends (231) towards a side of the fixed support (21) facing away from the walking machine body (10).

5. A crash safety device according to claim 4, characterized in that the connecting end (231) of the crash support (23) has at least two connecting lugs (233);

the number of the rotating shafts (22) is at least two, and the at least two rotating shafts (22) are connected to the fixed support (21) in a rotatable mode around the axis of the rotating shafts and are arranged coaxially; the at least two connecting support lugs (233) correspond to the at least two rotating shafts (22) one by one, each connecting support lug (233) is fixedly connected to the corresponding rotating shaft (22), and the cam is installed on any one of the at least two rotating shafts (22).

6. The crash-proof safety device according to claim 1, characterized in that the crash-proof safety device (20) further comprises a bearing fixing seat (26) and a bearing, the bearing fixing seat (26) is fixedly connected to the fixing bracket (21), and the rotating shaft (22) is assembled on the bearing fixing seat (26) through the bearing.

7. A crashworthy safety arrangement according to claim 1, characterised in that the cam is mounted on the shaft (22) by a coupling (28).

8. A crash safety device according to claim 1, characterized in that said shaft (22) has a preset triggering position during its rotation about its own axis, said cam triggering said contact when said shaft (22) rotates to said triggering position.

9. A walking machine, characterized by comprising a walking machine body (10), a control system and a safety bump guard (20) according to any one of claims 1 to 8.

10. The mobile machine of claim 9, wherein the control system includes a power control circuit for controlling electrical power, the contacts being connected in series to the power control circuit such that when the cam actuates the contacts, the contacts open the power control circuit.