Container lifting appliance container landing measuring device

By using the fixing and adjusting components of the container spreader, and utilizing a permanent magnet jack and a threaded locking structure, a safe and efficient operation for single-person precise measurement of the container lifting rod is achieved, solving the cumbersome measurement problem that requires two operators in existing technologies.

CN224258133UActive Publication Date: 2026-05-19NINGBO BEILUN YONGHE CONTAINER TERMINAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO BEILUN YONGHE CONTAINER TERMINAL CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The current method of measuring the landing boom of container spreaders requires two operators, which is cumbersome and poses safety hazards.

Method used

Using fasteners and adjustment components, including a first rod and a slidingly mounted second rod, the measurement of the box rod is completed in a non-direct contact manner. It is fixed to the beam frame using a permanent magnet lifter, and precise adjustment is achieved by combining threaded fit and locking structure.

Benefits of technology

It enables single-person operation, increases measurement speed by about 50%, improves measurement accuracy and safety, and reduces labor costs and safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a container lifting appliance container landing measuring device, and belongs to the technical field of container lifting appliances. The device comprises a fixing part used for being fixed to the bottom of a beam frame and an adjusting assembly arranged on the fixing part, and the adjusting assembly comprises a first rod body fixed to the fixing part and a second rod body installed on the first rod body in a sliding mode and used for abutting against a box rod. The device has the effect of conveniently locking and measuring the lifting distance of the container landing rod.
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Description

Technical Field

[0001] This application relates to the field of container spreader technology, and in particular to a container spreader positioning and measuring device. Background Technology

[0002] Container spreaders play a vital role in modern logistics and transportation, primarily enabling the safe and efficient lifting of containers. With the rapid development of global trade, container spreader technology is constantly advancing, particularly in improving operational efficiency, safety, and ease of maintenance.

[0003] Chinese utility model patent CN215626119U discloses a container-landing device for a container spreader, comprising a landing rod. The landing rod includes a sliding rod for slidingly connecting with the inner wall of a sliding hole and an abutment rod for abutting against the upper surface of the container. An elastic element is sleeved on the sliding rod, and a limit pin is provided below the elastic element. The top of the beam frame typically has a housing for protecting the landing device, and the side wall of the housing has through holes corresponding to the landing device to facilitate maintenance by operators.

[0004] Before the actual operation of the lifting device, it is necessary to measure the lifting rod. However, the above-mentioned measurement work of the lifting device requires two operators. One person uses a pry bar to hold the bottom of the limit pin and then lifts the lifting rod upward until the lifting rod reaches the critical point of sensing the sensor inside the housing. The other person uses a measuring ruler to measure the lifting height of the lifting rod. The above measurement operation is cumbersome and has certain safety hazards. Utility Model Content

[0005] To facilitate the measurement of the lifting distance of the container landing boom, this application provides a container landing measurement device.

[0006] The container spreader positioning and measuring device provided in this application adopts the following technical solution:

[0007] A container spreader measuring device includes a fixing member for fixing to the bottom of a beam frame and an adjusting assembly disposed on the fixing member. The adjusting assembly includes a first rod fixed to the fixing member and a second rod slidably mounted on the first rod and for abutting against the container rod.

[0008] By adopting the above technical solution, the adjustment component consists of a first rod and a second rod that slides onto the first rod. The second rod can abut against the box rod. Utilizing the adjustability of the adjustment component, technicians can perform the box-lifting action without direct contact during maintenance and emergency repairs, avoiding potential safety hazards that could cause personal injury to technicians. Measurement work can be completed by a single person, reducing labor and increasing measurement speed by about 50%, thus improving work efficiency. Precise lifting of the box rod to the bottom is achieved, making the measurement data more reliable.

[0009] Optionally, the fixing component is a permanent magnet lifter, which has an attractive surface that fits against the bottom of the beam frame, and the attractive surface is perpendicular to the length direction of the second rod.

[0010] By adopting the above technical solution, the fixing component is set as a permanent magnet lifter, and its attraction surface is attached to the bottom of the beam frame, ensuring that the device is stably installed on the beam frame without the need for additional fixing tools or manual support, thus improving the safety and convenience of operation.

[0011] Optionally, the first rod body includes a first screw rod disposed on the fixing member and a first limiting ring disposed on the first screw rod and for mounting the second rod body, wherein the first limiting ring is provided with a threaded sleeve that is threadedly engaged with the first screw rod.

[0012] By adopting the above technical solution, the first limiting ring is threadedly engaged with the first screw through a threaded sleeve, thereby fixing the first limiting ring and the first screw. This design allows for flexible adjustment of the installation position of the second rod, improving the adaptability of the measuring device, meeting the measurement needs of rods of different sizes and positions, and simplifying the assembly and debugging process of the measuring device.

[0013] Optionally, the first limiting ring has a sliding screw hole, and the second rod body has a threaded portion that mates with the sliding screw hole.

[0014] By adopting the above technical solution, the second rod can be precisely adjusted in axial position relative to the first rod. This design not only improves the adjustment accuracy of the measuring device but also simplifies the operation process of measuring the box rod, reduces the need for manual intervention, thereby improving measurement efficiency and reducing safety hazards.

[0015] Optionally, the fastener has a mounting through hole through which the first screw passes horizontally, and the fastener has locking nuts at both ends of the mounting through hole for locking the first screw.

[0016] By adopting the above technical solution, a mounting through hole is opened on the fixing component and a locking nut is used to allow the first screw to pass horizontally through the fixing component and achieve detachable fixing. This design facilitates the installation and removal of the first screw, improves the assembly efficiency and maintenance convenience of the device, and can be adjusted according to the distance of the second rod of the mounting rod to ensure the correspondence between the mounting rod and the second rod.

[0017] Optionally, a third rod for rotation is provided at the end of the second rod.

[0018] By adopting the above technical solution, the setting of the third rod enables the end of the second rod to have a rotation function, making the lifting and lowering of the second rod more effortless.

[0019] Optionally, the first screw has a plug-in portion at one end facing the second rod, and the first limiting ring has a plug-in sleeve that engages with the plug-in portion. The plug-in sleeve has a locking screw hole, and a locking bolt for abutting the plug-in portion is provided at the locking screw hole.

[0020] By adopting the above technical solution, the cooperation between the plug-in part and the plug-in sleeve enables rapid assembly and disassembly between the first screw and the first limiting ring, improving installation efficiency. The locking screw hole and locking bolt ensure the stability of the connection between the first screw and the first limiting ring, reducing the probability of loosening or falling off during use, thereby improving the overall reliability of the measuring device.

[0021] Optionally, the inner wall of the insertion sleeve is provided with a limiting groove along the axial direction, and the insertion part is provided with a limiting ridge that slides and engages with the limiting groove.

[0022] By adopting the above technical solution, the cooperation between the limiting groove and the limiting edge can effectively prevent the circumferential rotation of the insertion part in the insertion sleeve, while ensuring the perpendicularity of the sliding screw hole of the first limiting ring.

[0023] Optionally, the insertion part is provided with a pressing surface along the length direction of the first screw for the end of the locking bolt to abut against.

[0024] By adopting the above technical solution, the setting of the pressing plane allows the locking bolt to abut against the insertion part more tightly, effectively preventing the two from loosening or separating during use, thereby improving the overall stability of the device.

[0025] Optionally, a positioning block is rotatably provided on the side wall of the first limiting ring, and the positioning block has a limiting slot for inserting a measuring ruler.

[0026] By adopting the above technical solution, the positioning block can limit the placement of the measuring ruler, reducing the probability of measurement data deviation caused by the operator shaking the measuring ruler when manually holding it.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Through the cooperation of fasteners and adjustment components, the measurement of the box rod can be completed by a single person, which significantly improves the convenience of operation and reduces labor costs;

[0029] 2. The sliding installation structure of the first and second rods in the adjustment assembly makes the measurement process more precise and controllable, effectively improving the measurement accuracy;

[0030] 3. Precise lifting of the lifting rod can be achieved without the need for external tools such as crowbars, improving the overall safety of the operation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure installed at the bottom of the beam frame in Example 1.

[0032] Figure 2 This is a schematic diagram of the overall structure of Example 1.

[0033] Figure 3 This is a schematic diagram of the exploded structure of Example 1.

[0034] Figure 4 This is a schematic diagram of the structure of Example 2.

[0035] Figure 5 This is an exploded view of the first rod and the insertion sleeve in Embodiment 2.

[0036] Explanation of reference numerals in the attached drawings: 1. Fixing component; 11. Contact surface; 12. Mounting through hole; 13. Locking nut; 2. Adjusting assembly; 21. First rod; 211. First screw; 212. First limiting ring; 2121. Sliding screw hole; 213. Threaded sleeve; 214. Insertion part; 2141. Limiting ridge; 2142. Pressing plane; 215. Insertion sleeve; 2151. Limiting groove; 2152. Locking screw hole; 216. Locking bolt; 22. Second rod; 221. Threaded part; 23. Third rod; 24. Positioning block; 241. Limiting slot; 3. Beam frame; 4. Box-mounting rod. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0038] This application discloses a container spreader positioning and measuring device.

[0039] Example 1:

[0040] Reference Figure 1A container spreader measuring device includes a fixing component 1 and an adjusting component 2. The fixing component 1 is used to fit and fix to the bottom of the beam frame 3, and the adjusting component 2 is set on the fixing component 1 for lifting the bottom of the spreader arm 4.

[0041] Reference Figure 2 The fixing component 1 is a permanent magnet lifter, whose structure and principle are consistent with the prior art, and will not be described further in this application. The fixing component 1 has a suction surface 11 that fits against the bottom of the beam frame 3. In this embodiment, the suction surface 11 is a horizontal surface.

[0042] The adjusting assembly 2 includes a first rod 21 fixed to the fixing member 1 and a second rod 22 slidably mounted on the first rod 21. The bottom of the second rod 22 corresponds to the bottom of the support rod 4, and the sliding direction of the second rod 22 is parallel to the height direction, so that the sliding of the second rod 22 can push the support rod 4 upward.

[0043] Reference Figure 2 and Figure 3 The first rod body 21 includes a first screw 211 and a first limiting ring 212. The fixing member 1 has a mounting through hole 12 through which the first screw 211 passes horizontally. The fixing member 1 is provided with locking nuts 13 at both ends of the mounting through hole 12 for locking the first screw 211, so that the operator can slide and adjust the first rod body 21, thereby ensuring that the second cylinder and the setter rod 4 are located on the same vertical axis, improving the adaptability of the measuring device.

[0044] A threaded sleeve 213 is integrally welded to the side wall of the first limiting ring 212, and the threaded sleeve 213 and the first screw 211 are threadedly engaged. The first limiting ring 212 has a sliding screw hole 2121 that penetrates both end faces, and the side wall of the second rod 22 is provided with a threaded portion 221 that mates with the sliding screw hole 2121. When the threaded sleeve 213 and the first screw 211 are threadedly fixed, the first limiting ring 212 is rotated to a horizontal position (the axis of the sliding screw hole 2121 is parallel to the height direction).

[0045] To facilitate the operator's rotation of the second rod 22, a third rod 23 is also provided at the end of the second rod 22. The third rod 23 and the second rod 22 are fixed together by bolts or welding. The extension direction of the third rod 23 is perpendicular to the length direction of the second rod 22, so that the third rod 23 can be used as a handle for rotation.

[0046] The implementation principle of the container spreader positioning and measuring device in this application embodiment is as follows: The operator adjusts the fixing part 1 to the magnetic state and then attaches it to the bottom of the beam frame 3. The first screw 211 is horizontally adjusted so that the bottom of the second rod 22 corresponds to the bottom of the positioning rod 4. The third rod 23 is rotated so that the second rod 22 gradually slides upward. The top of the second rod 22 pushes the positioning rod 4. When the top of the positioning rod 4 is close to the sensor, the rotation of the third rod 23 is stopped, and the distance between the bottom of the positioning rod 4 and the bottom of the beam frame 3 is measured.

[0047] Example 2: Except for the connection method of the first limiting ring 212 and the first screw 211, the structure of this example is the same as that of Example 1.

[0048] Reference Figure 4 and Figure 5 The first rod body 21 includes a first screw 211 and a first limiting ring 212. The fixing member 1 has a mounting through hole 12 through which the first screw 211 passes horizontally, and the fixing member 1 has locking nuts 13 at both ends of the mounting through hole 12 for locking the first screw 211. The first screw 211 has a plug-in portion 214 on the side facing the second rod body 22, and the plug-in portion 214 is not threaded.

[0049] The side wall of the first limiting ring 212 is provided with a plug-in sleeve 215 that engages with the plug-in part 214. The inner hole of the plug-in sleeve 215 is provided with a limiting groove 2151 along its axial direction, and one end of the limiting groove 2151 passes through the end face of the plug-in sleeve 215. The side wall of the plug-in part 214 is provided with a limiting ridge 2141 that engages with the limiting ring. Through the cooperation of the limiting ridge 2141 and the limiting groove 2151, the installation of the first limiting ring 212 can be limited, thereby ensuring the verticality of the axis of the sliding screw hole 2121.

[0050] The insert sleeve 215 has a locking screw hole 2152 on its side wall that connects to the inner hole. The insert sleeve 215 also has a locking bolt 216 at the locking screw hole 2152 for abutting against the insert part 214. When the insert sleeve 215 is inserted to a certain position, aligning the second rod 22 with the mounting rod 4, it is locked in place by the locking bolt 216. To improve the locking effect of the locking bolt 216, the insert part 214 has a pressing surface 2142 on its outer side wall along the length of the first screw 211. The bolt shank end of the locking bolt 216 abuts against the pressing surface 2142. Compared to the bolt shank abutting against the arc-shaped outer side wall, this increases the pressing area and improves pressing stability.

[0051] A positioning block 24 is rotatably mounted on the side wall of the first limiting ring 212. The positioning block 24 is generally rectangular, and a limiting groove 241 is formed on the side away from the first limiting ring 212. The limiting groove 241 is designed so that the operator can insert the measuring ruler into the limiting groove 241, ensuring the perpendicularity of the measuring ruler and reducing errors caused by manual handling of the measuring ruler. A hinge seat is mounted on the first limiting ring 212, and the positioning block 24 is provided with a hinge joint that inserts into the hinge seat. The hinge joint and the hinge seat are rotatably connected by a hinge shaft. The first limiting ring 212 rotates up and down, so that the positioning block 24 can rotate according to the usage state.

[0052] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A container spreader positioning and measuring device, characterized in that, It includes a fixing member (1) for fixing to the bottom of the beam frame (3) and an adjustment assembly (2) disposed on the fixing member (1). The adjustment assembly (2) includes a first rod (21) fixed to the fixing member (1) and a second rod (22) slidably mounted on the first rod (21) and used to abut against the box rod (4).

2. The container spreader positioning and measuring device according to claim 1, characterized in that, The fixing component (1) is a permanent magnet lifter. The permanent magnet lifter is provided with a suction surface (11) that fits against the bottom of the beam frame (3). The suction surface (11) is perpendicular to the length direction of the second rod (22).

3. The container spreader positioning and measuring device according to claim 1, characterized in that, The first rod (21) includes a first screw (211) disposed on the fixing member (1) and a first limiting ring (212) disposed on the first screw (211) and for the second rod (22) to be installed. The first limiting ring (212) is provided with a threaded sleeve (213) that is threadedly engaged with the first screw (211).

4. The container spreader positioning and measuring device according to claim 3, characterized in that, The first limiting ring (212) has a sliding screw hole (2121), and the second rod (22) has a threaded part (221) that mates with the sliding screw hole (2121).

5. A container spreader positioning and measuring device according to claim 3, characterized in that, The fastener (1) has a mounting through hole (12) through which the first screw (211) passes horizontally, and the fastener (1) has a locking nut (13) at both ends of the mounting through hole (12) for locking the first screw (211).

6. The container spreader positioning and measuring device according to claim 1, characterized in that, The end of the second rod (22) is provided with a third rod (23) for rotation.

7. A container spreader positioning and measuring device according to claim 3, characterized in that, The first screw (211) has a plug-in part (214) at one end facing the second rod body (22). The first limiting ring (212) has a plug-in sleeve (215) that is plugged into the plug-in part (214). The plug-in sleeve (215) has a locking screw hole (2152) and a locking bolt (216) for abutting the plug-in part (214) is provided at the locking screw hole (2152).

8. A container spreader positioning and measuring device according to claim 7, characterized in that, The inner wall of the plug sleeve (215) is provided with a limiting groove (2151) along the axial direction, and the plug part (214) is provided with a limiting ridge (2141) that slides and engages with the limiting groove (2151).

9. A container spreader positioning and measuring device according to claim 8, characterized in that, The plug portion (214) is provided with a pressing surface (2142) along the length direction of the first screw (211) for the end of the locking bolt (216) to abut.

10. A container spreader positioning and measuring device according to claim 7, characterized in that, The first limiting ring (212) has a rotatable positioning block (24) on its side wall, and the positioning block (24) has a limiting slot (241) for inserting a measuring ruler.