Early warning device for hydraulic device

Abstract

The utility model relates to the technical field of hydraulic equipment, in particular to an early warning device for a hydraulic device, which comprises a hydraulic mechanism and an early warning mechanism. The early warning mechanism is installed on the outer side of the hydraulic mechanism, the hydraulic mechanism comprises a hydraulic cylinder, the inner side wall of the hydraulic cylinder is connected with a hydraulic rod in a sliding mode, the top of the hydraulic rod is fixedly connected with a connecting plate, and the outer side wall of the hydraulic cylinder is fixedly connected with a first fixing plate. Signals of an infrared transmitter are detected through an infrared receiver, if a hydraulic cylinder and a hydraulic rod are impacted or exceed a bearing load to be bent, a first sleeve and a second sleeve deform along with the hydraulic cylinder and the hydraulic rod, so that the infrared transmitter cannot irradiate the infrared receiver, and the infrared receiver does not receive infrared signals; and the controller starts the audible and visual alarm to remind the surroundings, so that operators can respond in time, the safety is improved, and early warning use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic equipment, in particular to a warning device for a hydraulic device. Background Technique

[0002] A crane is a hoisting and handling instrument widely used in ports, construction sites, workshops and other places. It is a unified name for lifting machinery. The use of a crane is for hoisting equipment, emergency rescue, lifting, rescue, etc. There are many types of cranes, basically covering various fields and various places. The most common ones are truck cranes (including truck-mounted cranes and tyre cranes) and crawler cranes. These two are important tools for construction sites. In addition, the use of quay cranes, tower cranes, gantry cranes and other cranes is also quite extensive. A crane hydraulic support is an important component used to bear the static and dynamic loads of the crane beam and transfer them to the lower structure;

[0003] Chinese published patent (Publication No.: CN216945959U) discloses a hydraulic force measurement and warning device, which includes at least one hydraulic support provided at the bottom end of a crane base. The hydraulic support is used to support the crane base. A load-bearing platform is provided at the top of the hydraulic support, and the load-bearing platform is used to reinforce and support the connection between the crane base and the hydraulic support. A fixed sleeve column is provided at the bottom of the load-bearing platform, and a hydraulic column is embedded at the top of the fixed sleeve column. The hydraulic column and the fixed sleeve column are movably connected. A hydraulic weighing device is provided at the bottom of the hydraulic support. Through the internally provided hydraulic weighing device, the force conditions of the four hydraulic supports are detected and fed back, and after obtaining the total weight, the gravity is displayed on the display in the crane cab, which is convenient for the driver to intuitively judge the current lifting weight of the crane. At the same time, the force conditions of the four hydraulic supports can be evaluated through the force distribution controller and the risk of crane rollover can be judged. Then, through the warning sounder, it is convenient for the driver in the crane to react and evacuate in the first time. However, the detection means for the hydraulic support is relatively single. If the hydraulic support is bent due to external influence or exceeding the load-bearing capacity, it is difficult to detect in time by simply detecting the internal pressure, which is likely to cause safety problems and is not conducive to early warning use. Therefore, a warning device for a hydraulic device is proposed. Content of the Utility Model

[0004] In view of this, the utility model provides a warning device for a hydraulic device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of the utility model is realized as follows: A warning device for a hydraulic device includes a hydraulic mechanism and a warning mechanism;

[0006] The warning mechanism is installed outside the hydraulic mechanism. The hydraulic mechanism includes a hydraulic cylinder. A hydraulic rod is slidably connected to the inner side wall of the hydraulic cylinder. A connecting plate is fixedly connected to the top of the hydraulic rod. A first fixing plate is fixedly connected to the outer side wall of the hydraulic cylinder. A second fixing plate is fixedly connected to one side of the connecting plate. The first fixing plate corresponds to the second fixing plate. A first sleeve is fixedly connected to the upper surface of the first fixing plate. A second sleeve is slidably connected to the inner side wall of the first sleeve. The top of the second sleeve is fixedly connected to the lower surface of the second fixing plate. An infrared emitter is installed on the inner bottom wall of the first sleeve. An infrared receiver is installed on the inner top wall of the second sleeve.

[0007] Further preferably, a hydraulic weighing device is installed on the inner bottom wall of the hydraulic cylinder.

[0008] Further preferably, a U-shaped plate is hinged to the outer side wall of the hydraulic cylinder. A base is fixedly connected to the bottom of the U-shaped plate.

[0009] Further preferably, an anti-slip pad is fixedly connected to the bottom of the base. Four threaded holes are symmetrically formed in the top of the connecting plate.

[0010] Further preferably, a limiting collar is fixedly connected to the outer side wall of the second sleeve.

[0011] Further preferably, a controller and a sound and light alarm are installed on the front surface of the U-shaped plate. The infrared receiver is signal-connected to the controller. The controller is electrically connected to the sound and light alarm.

[0012] Further preferably, a wireless transmitter is installed on the front surface of the U-shaped plate. The wireless transmitter is signal-connected to the controller.

[0013] Due to the adoption of the above technical solutions in the embodiments of the present utility model, it has the following advantages:

[0014] During the use of the present utility model, the infrared receiver detects the signal of the infrared emitter. If the hydraulic cylinder and the hydraulic rod are impacted or bent beyond the load-bearing capacity, the first sleeve and the second sleeve will deform accordingly, resulting in the infrared emitter being unable to irradiate the infrared receiver. The infrared receiver does not receive the infrared signal, and the controller activates the sound and light alarm to remind the surrounding area, facilitating the operator to react in a timely manner, improving safety, and being conducive to early warning use.

[0015] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments, and features, further aspects, embodiments, and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a structural diagram of the warning device for the hydraulic device of the present utility model;

[0018] Figure 2 For the present utility model Figure 1 Another perspective structural diagram;

[0019] Figure 3 It is a sectional structural diagram of the hydraulic cylinder of the present utility model;

[0020] Figure 4 It is a sectional structural diagram of the first sleeve and the second sleeve of the present utility model.

[0021] Reference numerals: 1, hydraulic mechanism; 11, hydraulic cylinder; 12, hydraulic rod; 13, hydraulic weighing device; 14, connecting plate; 15, threaded hole; 16, U-shaped plate; 17, base; 18, anti-slip pad; 2, warning mechanism; 21, first fixing plate; 22, second fixing plate; 23, first sleeve; 24, second sleeve; 25, infrared emitter; 26, infrared receiver; 27, limiting collar; 28, controller; 29, sound and light alarm; 3, wireless transmitter. Detailed implementation manners

[0022] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0023] The following will detail the embodiments of the present utility model with reference to the drawings.

[0024] As Figures 1-4 shown, the embodiment of the present utility model provides a warning device for a hydraulic device, including a hydraulic mechanism 1 and a warning mechanism 2;

[0025] The warning mechanism 2 is installed outside the hydraulic mechanism 1. The hydraulic mechanism 1 includes a hydraulic cylinder 11. A hydraulic rod 12 is slidably connected to the inner side wall of the hydraulic cylinder 11. A connecting plate 14 is fixedly connected to the top of the hydraulic rod 12. A first fixing plate 21 is fixedly connected to the outer side wall of the hydraulic cylinder 11. A second fixing plate 22 is fixedly connected to one side of the connecting plate 14. The first fixing plate 21 corresponds to the second fixing plate 22. A first sleeve 23 is fixedly connected to the upper surface of the first fixing plate 21. A second sleeve 24 is slidably connected to the inner side wall of the first sleeve 23. The top of the second sleeve 24 is fixedly connected to the lower surface of the second fixing plate 22. An infrared emitter 25 is installed on the inner bottom wall of the first sleeve 23. An infrared receiver 26 is installed on the inner top wall of the second sleeve 24.

[0026] In one embodiment, a hydraulic weighing device 13 is installed on the inner bottom wall of the hydraulic cylinder 11; the force inside the hydraulic cylinder 11 is detected by the hydraulic weighing device 13.

[0027] In one embodiment, a U-shaped plate 16 is hinged to the outer side wall of the hydraulic cylinder 11. A base 17 is fixedly connected to the bottom of the U-shaped plate 16; through the setting of the U-shaped plate 16, the U-shaped plate 16 is hinged to the hydraulic cylinder 11, and the angle of the U-shaped plate 16 is adjusted, so as to adjust the angle of the base 17, making the base 17 fit the ground better and improving the stability of the hydraulic cylinder 11.

[0028] In one embodiment, an anti-slip pad 18 is fixedly connected to the bottom of the base 17. Four threaded holes 15 are symmetrically opened at the top of the connecting plate 14; through the setting of the anti-slip pad 18, the stability of the base 17 is improved. Through the setting of the threaded holes 15, bolts are inserted into the threaded holes 15, which is convenient for fixing the connecting plate 14 to the installation position.

[0029] In one embodiment, a limiting collar 27 is fixedly connected to the outer side wall of the second sleeve 24; through the setting of the limiting collar 27, the position of the second sleeve 24 is restricted, so that the second sleeve 24 does not deviate when sliding in the first sleeve 23.

[0030] In one embodiment, a controller 28 and an audible and visual alarm 29 are installed on the front surface of the U-shaped plate 16. The infrared receiver 26 is signal-connected to the controller 28. The controller 28 is electrically connected to the audible and visual alarm 29; through the setting of the controller 28, when the infrared receiver 26 does not receive an infrared signal, the controller 28 activates the audible and visual alarm 29 to give a reminder to the surroundings.

[0031] In one embodiment, a wireless transmitter 3 is installed on the front surface of the U-shaped plate 16. The wireless transmitter 3 is signal-connected to the controller 28; through the setting of the wireless transmitter 3, the signals of the infrared receiver 26 and the hydraulic weighing device 13 are transmitted to the vehicle control room, which is convenient for the staff to observe.

[0032] When the utility model is working: First, the bolt is inserted into the threaded hole 15 to fix the connecting plate 14 to the installation position. The hydraulic weighing device 13 detects the force condition in the hydraulic cylinder 11, and the infrared receiver 26 detects the signal of the infrared transmitter 25. If the hydraulic cylinder 11 and the hydraulic rod 12 are impacted or bent beyond the bearing load, the first sleeve 23 and the second sleeve 24 will deform accordingly, resulting in the infrared transmitter 25 being unable to irradiate the infrared receiver 26. The infrared receiver 26 does not receive the infrared signal, and the controller 28 activates the sound and light alarm 29 to remind the surrounding area, facilitating the operator to make a response and improving safety.

[0033] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An early warning device for a hydraulic device, characterized in that: It comprises a hydraulic mechanism (1) and an early warning mechanism (2); The early warning mechanism (2) is installed on the outside of the hydraulic mechanism (1), and the hydraulic mechanism (1) comprises a hydraulic cylinder (11), the inner side wall of the hydraulic cylinder (11) is slidably connected to a hydraulic rod (12), the top of the hydraulic rod (12) is fixedly connected to a connecting plate (14), the outer side wall of the hydraulic cylinder (11) is fixedly connected to a first fixing plate (21), one side of the connecting plate (14) is fixedly connected to a second fixing plate (22), the first fixing plate (21) corresponds to the second fixing plate (22), the upper surface of the first fixing plate (21) is fixedly connected to a first sleeve (23), the inner side wall of the first sleeve (23) is slidably connected to a second sleeve (24), the top of the second sleeve (24) is fixedly connected to the lower surface of the second fixing plate (22), the inner bottom wall of the first sleeve (23) is installed with an infrared transmitter (25), and the inner top wall of the second sleeve (24) is installed with an infrared receiver (26).

2. The early warning device for a hydraulic device according to claim 1, characterized in that: A hydraulic weighing device (13) is installed on the inner bottom wall of the hydraulic cylinder (11).

3. The early warning device for a hydraulic device according to claim 1, characterized in that: A U-shaped plate (16) is hingedly connected to the outer side wall of the hydraulic cylinder (11), and a base (17) is fixedly connected to the bottom of the U-shaped plate (16).

4. The early warning device for a hydraulic device according to claim 3, characterized in that: The bottom of the base (17) is fixedly connected with an anti-skid pad (18), and the top of the connecting plate (14) is symmetrically provided with four threaded holes (15).

5. The early warning device for a hydraulic device according to claim 1, characterized in that: The outer side wall of the second sleeve (24) is fixedly connected to a limiting collar (27).

6. The early warning device for a hydraulic device according to claim 3, characterized in that: A controller (28) and an audible and visual alarm (29) are installed on the front surface of the U-shaped plate (16); the infrared receiver (26) is signal-connected to the controller (28); and the controller (28) is electrically connected to the audible and visual alarm (29).

7. The early warning device for a hydraulic device according to claim 6, characterized in that: A wireless transmitter (3) is installed on the front surface of the U-shaped plate (16), and the wireless transmitter (3) is connected to the controller (28) by signal.

Images