Modular load partition monitoring and early warning device for hydraulic lifting trolley

Abstract

The utility model provides a kind of modularization load partition monitoring and early warning device for hydraulic lifting trolley, belong to the load monitoring field of bearing platform, comprising: at least three groups of load monitoring module and liquid level display module between the base of bearing platform and bearing part are set.The utility model, by designing load monitoring module, its built-in "piston structure", and by spring piece elastic support, it can extrude the liquid inside piston cavity when being pressed, and the liquid level display module is directly reflected at the float ball display piece by liquid pipe;Comprehensively use at least three groups of load monitoring module, when total load is overloaded, all float ball display piece is at high position;When partial load, there is big difference in position in float ball display piece, overload and partial load can be monitored based on the above principle.

Description

Technical Field

[0001] This utility model relates to the field of load monitoring for load-bearing platforms, specifically a modular load zoning monitoring and early warning device for hydraulic lifting platforms. Background Technology

[0002] Hydraulic lifting platform trolleys are indispensable vertical material conveying equipment in modern industrial production, logistics warehousing, and maintenance operations. Their operational safety is directly related to the safety of personnel and property. Among all the causes of accidents leading to structural damage, hydraulic system overload, or even overturning of the lifting platform trolley, overall overload and localized uneven loading are the two main root causes. Therefore, real-time and accurate monitoring of the platform load is a core technical requirement for ensuring the safe operation of the equipment.

[0003] Hydraulic load limiters that rely on a single pressure sensor can monitor the total load of the platform. When the total load exceeds the rated value, the system will trigger an alarm or cut off the power source, which can effectively prevent dangers caused by the total weight of the goods exceeding the limit. However, it cannot monitor the problem of off-center loading. Therefore, this utility model provides a modular load zoning monitoring and early warning device for hydraulic lifting platforms. Utility Model Content

[0004] To address the problem that traditional hydraulic load limiters cannot monitor off-center loads, this invention provides a modular load zoning monitoring and early warning device for hydraulic lifting platforms.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A modular load zoning monitoring and early warning device for a hydraulic lifting platform includes:

[0007] At least three load monitoring modules are installed between the base of the bearing platform and the bearing components;

[0008] A liquid level display module, wherein the liquid level display module has float display elements corresponding to the number of load monitoring modules, and the float display elements are connected to the load monitoring modules one by one through liquid pipes;

[0009] The load monitoring module includes:

[0010] The main body has a stepped opening and a liquid guiding groove on its top. The stepped opening includes a second hole and a first groove distributed vertically. The first groove is connected to the liquid guiding groove, and one end of the liquid guiding groove is connected to a liquid pipe.

[0011] A piston rod, wherein a piston is fixedly installed at the bottom end of the piston rod and inside the first groove;

[0012] A spring element is located inside the second hole, and a limiting ring located at the top of the spring element is sleeved on the piston rod.

[0013] A plug assembly is fixedly installed at the top of the second hole, and the plug assembly slides with the piston rod, and a limiting shoulder group corresponding to the outer side of the piston rod is provided on the inner side of the plug assembly.

[0014] The piston rod is fixedly connected to a second flange at its top end.

[0015] As a further description of the above technical solution:

[0016] The bottom of the main body is fixedly connected to a first flange.

[0017] As a further description of the above technical solution:

[0018] The liquid guiding channel is a through hole, and a plug is threaded onto one end of the liquid guiding channel.

[0019] As a further description of the above technical solution:

[0020] The spring component is a disc spring assembly.

[0021] As a further description of the above technical solution:

[0022] The plug assembly includes: an inner liner ring located on the inner side, and a plug ring fixed on the outer side of the inner liner ring. The plug ring is threaded into the second hole. The inner liner ring is composed of two arc-shaped parts joined together.

[0023] As a further description of the above technical solution:

[0024] It also includes: a monitoring module and an alarm module. The monitoring module is used to monitor the position of the float in the float display. The monitoring module is communicatively connected to the alarm module.

[0025] The beneficial effects of this utility model are:

[0026] This invention, through the design of a load monitoring module, incorporates a built-in "piston structure" elastically supported by springs. When under pressure, the piston compresses the liquid inside its chamber, which is then visually reflected on the float display of the liquid level display module via a liquid pipe. By employing at least three load monitoring modules, all float displays are at a high position when the total load is overloaded; and when there is an off-center load, the float displays show a significant positional difference. Based on this principle, overload and off-center load can be monitored. Furthermore, the "piston structure" elastically supported by springs acts as a buffer structure during use, preventing damage to the load-bearing platform from impact loads. Attached Figure Description

[0027] The following figures are shown to more clearly illustrate a modular load zoning monitoring and early warning device for a hydraulic lifting platform;

[0028] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0029] Figure 2 This is a perspective view of the load monitoring module of this utility model;

[0030] Figure 3 This is a cross-sectional view of the load monitoring module of this utility model;

[0031] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0032] The labels in the attached diagram;

[0033] 1. Load monitoring module; 101. Main body; 102. First flange; 103. Liquid guide groove; 104. Second flange; 105. Piston rod; 106. Piston; 107. Stepped opening; 107a. First groove; 107b. Second hole; 108. Spring; 109. Restriction ring; 1010. Inner liner ring; 1011. Plug ring; 2. Liquid pipe; 3. Liquid level display module; 4. Alarm module; 5. Monitoring module. Detailed Implementation

[0034] Please refer to the attached document. Figures 1-4 This application illustrates a modular load zoning monitoring and early warning device for a hydraulic lifting platform, which is used to monitor overload and off-center load on the platform. Specifically, it includes at least three load monitoring modules 1 and liquid level display modules 3 disposed between the base and the load-bearing components of the platform.

[0035] The liquid level display module 3 has float display elements corresponding to the number of load monitoring modules 1. The float display elements are connected to the load monitoring modules 1 one-to-one through liquid pipes 2. The liquid level of each float display element can be observed at the liquid level display module 3.

[0036] For example, load monitoring module 1 can be set to three groups, which are distributed in a triangular pattern; or load monitoring module 1 can be set to four groups, which are distributed at the four corners of the load-bearing platform.

[0037] The main body of the float display is a vertical cylinder, inside which is a sphere that floats on the surface of the liquid.

[0038] Specifically, the load monitoring module 1 includes: a main body 101, a piston rod 105, a spring 108, and a plug assembly.

[0039] The top of the main body 101 has a stepped opening 107 and a liquid guiding groove 103. The stepped opening 107 includes a second hole 107b and a first groove 107a distributed vertically. The diameter of the second hole 107b is larger than that of the first groove 107a, and a step is formed at the junction of the two. The first groove 107a is connected to the liquid guiding groove 103. One end of the liquid guiding groove 103 is connected to the liquid pipe 2. A piston 106 is fixedly installed at the bottom end of the piston rod 105 and inside the first groove 107a. The piston 106 and the inside of the first groove 107a form a "piston structure". The spring 108 is located inside the second hole 107b. The bottom of 08 abuts against the step at the top of the first groove 107a. A limiting ring 109 located at the top of the spring 108 is fitted on the piston rod 105. The plug assembly is fixedly installed at the top of the second hole 107b, and the plug assembly slides with the piston rod 105. A limiting shoulder group corresponding to the outer side of the piston rod 105 is provided on the inner side of the plug assembly. The shoulder group is used to limit the highest position of the piston rod 105 (when the piston rod 105 moves to the highest position, the piston 106 cannot leave the first groove 107a). The top of the piston rod 105 is fixedly connected to the second flange 104, which is used to connect to the upper support member.

[0040] like Figure 3 As shown, the upper support member presses on the second flange 104, and the second flange 104 transmits force to the piston rod 105. The piston rod 105 presses down on the limiting ring 109 to compress the spring member 108, and the piston rod 10 pushes the piston 106 downward to move downward, forcing the liquid inside the first groove 107a into the liquid guide groove 103, and then flowing through the liquid pipe 2 into the float display member.

[0041] In one embodiment, a first flange 102 is fixedly connected to the bottom of the main body 101, and the first flange 102 is fixedly installed to the base of the support platform.

[0042] In one embodiment, the liquid guiding groove 103 is a through hole, and a plug is threaded onto one end of the liquid guiding groove 103. The structure of the through hole is easy to process.

[0043] In one embodiment, the spring 108 is a disc spring assembly, which has higher load-bearing capacity and a longer service life.

[0044] In one embodiment, the plug assembly includes: an inner liner ring 1010 located on the inner side, and a plug ring 1011 fixed on the outer side of the inner liner ring 1010, the plug ring 1011 being threadedly engaged with the second hole 107b.

[0045] The inner side of the inner liner ring 1010 forms a step with the outer side of the piston rod 105, so that the inner liner ring 1010 can restrict the piston rod 105 from sliding upward. The inner liner ring 1010 is designed as two arc-shaped parts, which are joined together to form a ring, thus facilitating the installation of the inner liner ring 1010. The inner ring of the plug ring 1011 is fixedly fitted with the inner liner ring 1010. The inner ring hole of the plug ring 1011 is larger, thus facilitating the installation of the inner liner ring 1010 and the plug ring 1011.

[0046] In one embodiment, it further includes: a monitoring module 5 and an alarm module 4. The monitoring module 5 is used to monitor the position of the float in the float display, and the monitoring module 5 is communicatively connected to the alarm module 4.

[0047] The monitoring module 5 can use a camera to acquire images of the float display components. The processor processes the image information to determine whether there are situations such as "significant positional differences among the float display components" or "all float display components are in a high position".

[0048] The monitoring module 5 can use a distance sensor. The monitoring module 5 is fixed in position and is used to monitor the height position of the floats. It calculates the height data of all floats and determines whether there are situations such as "the floats in the display have large position differences" or "the floats in the display are all in a high position".

[0049] Alarm module 4 is an integrated module that combines visual display and dual logic alarm functions. It provides different alarms for two situations: "significant positional difference among the float indicators" and "all float indicators are at high positions". For example, a rapid beep and a flashing yellow warning light correspond to "significant positional difference among the float indicators", which is an off-center load alarm; a long beep and a solid red warning light correspond to "all float indicators are at high positions", which is an overload alarm.

[0050] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0051] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A modular load zoning monitoring and early warning device for a hydraulic lifting platform, characterized in that, include: At least three load monitoring modules (1) are installed between the base of the bearing platform and the bearing component; A liquid level display module (3) has a number of float display elements corresponding to the number of load monitoring modules (1). The float display elements are connected to the load monitoring modules (1) one-to-one through liquid pipes (2). The load monitoring module (1) includes: The main body (101) has a stepped opening (107) and a liquid guiding groove (103) on its top. The stepped opening (107) includes a second hole (107b) and a first groove (107a) distributed vertically. The first groove (107a) is connected to the liquid guiding groove (103). One end of the liquid guiding groove (103) is connected to the liquid pipe (2). A piston rod (105) is provided, and a piston (106) is fixedly installed at the bottom end of the piston rod (105) and inside the first groove (107a); A spring member (108) is located inside the second hole (107b), and a limiting ring (109) located at the top of the spring member (108) is sleeved on the piston rod (105); A plug assembly is fixedly installed at the top of the second hole (107b), and the plug assembly is slidably engaged with the piston rod (105), and a limiting shoulder group corresponding to the outer side of the piston rod (105) is provided on the inner side of the plug assembly. The piston rod (105) is fixedly connected to a second flange (104) at its top end.

2. The modular load zoning monitoring and early warning device for a hydraulic lifting platform as described in claim 1, characterized in that: The bottom of the main body (101) is fixedly connected to a first flange (102).

3. A modular load zoning monitoring and early warning device for a hydraulic lifting platform as described in claim 1, characterized in that: The liquid guiding groove (103) is a through hole, and a plug is threaded onto one end of the liquid guiding groove (103).

4. A modular load zoning monitoring and early warning device for a hydraulic lifting platform as described in claim 1, characterized in that: The spring component (108) is a disc spring assembly.

5. A modular load zoning monitoring and early warning device for a hydraulic lifting platform as described in claim 1, characterized in that, The plug assembly includes: an inner liner ring (1010) located on the inner side, and a plug ring (1011) fixed on the outer side of the inner liner ring (1010). The plug ring (1011) is threadedly engaged with the second hole (107b). The inner liner ring (1010) is formed by two arc-shaped parts joined together.

6. A modular load zoning monitoring and early warning device for a hydraulic lifting platform as described in claim 1, characterized in that, Also includes: The monitoring module (5) and the alarm module (4) are used to monitor the position of the float in the float display. The monitoring module (5) and the alarm module (4) are connected in communication.

Images