A door machine electrical maintenance auxiliary installation piece

CN224900810UActive Publication Date: 2026-10-27MIKAMI ELECTRICAL & MECHANICAL (HAINAN) CO LTD
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Patent Information

Application Number
CN202522673920.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-17
Publication Date
2026-10-27
Estimated Expiration
2035-12-17

AI Technical Summary

Technical Problem

在长时间的维修作业中,由于设备震动或负载变化,容易出现折叠机构缓慢回缩或连接处松动的情况,导致支撑平台发生非预期的沉降或晃动,不仅影响电气元件安装的精度,更对维修人员的人身安全构成潜在威胁,现有的支撑平台多为光面结构,缺乏对维修用辅助设备的专用固定和调节卡槽,导致辅助工具放置不稳,进一步降低了作业的安全性与效率

Benefits of technology

1、本实用新型,通过在支撑座内设置滑动柱驱动折叠杆开合,配合连接柱与伸缩杆形成的稳固支撑结构,并利用弹簧驱动的L形块卡入折叠杆内壁的限位槽二中进行机械锁定,解决了现有门机维修支撑装置在高度调节后锁定不牢固、容易因受力晃动或意外下降的问题,能够自由且平稳地调节维修高度,并在作业时实现双重稳固锁定,有效保障维修人员及设备安全。

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Abstract

The utility model relates to the technical field of electrical maintenance discloses a door machine electrical maintenance auxiliary installation spare, including support seat and setting in its upper support platform, the support seat is slidably connected with sliding column through sliding groove no.
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Description

Technical Field

[0001] This utility model relates to the field of electrical maintenance technology, and in particular to an auxiliary installation component for electrical maintenance of gantry cranes. Background Technology

[0002] As an important loading and unloading equipment in ports and large freight yards, the stable operation of the electrical system of gantry cranes is crucial. When repairing, replacing parts or assisting in the installation of the electrical system of gantry cranes, auxiliary support devices are needed to lift maintenance personnel or heavy installation components to a designated height for the operation.

[0003] Existing auxiliary support devices for gantry crane maintenance have certain shortcomings in their structural design. Traditional scissor or hydraulic lifting platforms often lack a reliable mechanical locking mechanism after being adjusted to a designated height, relying solely on hydraulic valve closure or simple friction tightening to maintain the height. During prolonged maintenance operations, equipment vibration or load changes can easily cause the folding mechanism to slowly retract or the connections to loosen, leading to unexpected settlement or swaying of the support platform. This not only affects the accuracy of electrical component installation but also poses a potential threat to the personal safety of maintenance personnel. Existing support platforms are mostly smooth structures, lacking dedicated fixing and adjustment slots for auxiliary maintenance equipment, resulting in unstable placement of auxiliary tools and further reducing the safety and efficiency of the operation.

[0004] Therefore, this utility model proposes an auxiliary installation component for the electrical maintenance of gantry cranes to address the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems existing in the field of gantry crane electrical maintenance auxiliary installation device, such as imperfect structural design, lack of reliable mechanical hard locking mechanism after adjustment to a specified height, easy to cause safety hazards due to shaking or accidental descent under force, and lack of dedicated auxiliary tooling interface, which makes it difficult to flexibly position and quickly fix heavy hydraulic auxiliary equipment on the platform and has low convenience of use, this utility model aims to provide a gantry crane electrical maintenance auxiliary installation component with improved structure that can effectively solve the above problems.

[0006] This utility model provides an auxiliary installation component for electrical maintenance of a door operator, including: a support base, and a support platform disposed above the support base; and a lifting and locking mechanism comprising a limiting groove, a fixing block, an L-shaped block, and a spring.

[0007] The inner wall of the support base is provided with a sliding groove extending along the length direction. A sliding column is slidably connected in the sliding groove. A scissor-type folding rod is rotatably connected to the outer wall of the sliding column. A connecting column is rotatably connected at the intersection of the two folding rods. The top of the connecting column is slidably connected to the bottom of the support base. The folding rod is opened and closed by moving the sliding column to achieve lifting and lowering. The inner wall of the folding rod has a limiting groove for locking.

[0008] The top of the support base is connected to the bottom of the support platform by a telescopic rod, providing vertical guidance. A fixing block is fixedly connected to the front top of the support base. Sliding grooves are provided on both the left and right sides of the inner wall of the fixing block. An L-shaped block is slidably connected in the sliding groove. A spring is connected between the outer wall of the L-shaped block and the inner wall of the sliding groove. The L-shaped block, the fixing block and the folding rod are combined by the spring driving the L-shaped block to engage with the limiting groove, thereby achieving a high degree of mechanical locking.

[0009] Preferably, a positioning groove is provided on the rear side of the inner wall of the support base, a positioning strip is slidably connected in the positioning groove, and a hydraulic platform is fixedly connected to the top of the positioning strip, so that the hydraulic platform can be adjusted in position along the direction of the positioning groove.

[0010] Preferably, the inner wall of the support base is rotatably connected to the left and right sides of the rotating column, and the outer wall of the rotating column is fixedly connected to the clamping plate. The clamping plate is set on the rotating column and is used to rotate with the rotating column to press or release the hydraulic platform.

[0011] Preferably, the inner wall of the rotating column is provided with a slot, and the inner wall of the support base is provided with a sliding groove three. A sliding block is slidably connected in the sliding groove three, and a spring two is connected to the outer wall of the sliding block. Under the elastic force of the spring two, the sliding block is suitable for being locked into the slot, thereby restricting the rotation of the rotating column and preventing the auxiliary mechanism from loosening.

[0012] Preferably, the telescopic rods are provided in four sets, and are respectively located at the four corners of the top of the support base. The two ends of the telescopic rods are fixedly connected to the support base and the support platform, respectively, to provide more stable four-point support.

[0013] Preferably, one end of the spring is fixedly connected to the outer wall of the L-shaped block, and the other end abuts against the bottom wall of the sliding groove, ensuring that the L-shaped block always has an inward locking tendency.

[0014] Preferably, the support base has a rectangular frame structure, and the sliding groove extends along the length direction of the support base, which helps to improve the structural strength and stability of the base.

[0015] Preferably, the end of the sliding block opposite to the second spring is provided with a lever, which extends to the outside of the support base, so that the operator can manually unlock the auxiliary mechanism from the outside.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problems of existing gantry crane maintenance support devices that are not securely locked after height adjustment, are prone to shaking or accidental descent due to force, and can be mechanically locked by using a spring-driven L-shaped block to engage with the limiting groove two on the inner wall of the folding rod. It can freely and smoothly adjust the maintenance height and achieve double stable locking during operation, effectively ensuring the safety of maintenance personnel and equipment.

[0017] 2. This utility model solves the problems of existing maintenance devices lacking dedicated auxiliary tooling interfaces and heavy hydraulic auxiliary equipment being difficult to position flexibly and quickly fix on the platform by setting a positioning groove and positioning strip on the rear side of the support base, and combining it with a quick fixing mechanism composed of a rotating column, a card plate and a sliding block with spring locking. The auxiliary hydraulic table position is flexible to adjust, easy to disassemble and assemble, and is reliably fixed during use, which significantly improves maintenance efficiency and ease of operation. Attached Figure Description

[0018] Figure 1 This is a perspective view of the front side of the support base of an auxiliary installation component for electrical maintenance of a gantry crane proposed in this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a rear view of the positioning groove of an auxiliary installation component for electrical maintenance of a gantry crane proposed in this utility model; Figure 4 This is a sectional view of a fixing block for an auxiliary installation component for electrical maintenance of a gantry crane, as proposed in this utility model. Figure 5 for Figure 4 Enlarged view of section B in the middle; Figure 6 This is a partial structural diagram of a hydraulic platform for an auxiliary installation component for electrical maintenance of a gantry crane, as proposed in this utility model. Figure 7 This is a sectional view of the rotating column of an auxiliary installation component for electrical maintenance of a gantry crane, as proposed in this utility model. Figure 8 for Figure 7 Enlarged view of point C in the middle.

[0019] Legend: 1. Support base; 2. Auxiliary mechanism; 201. Positioning groove; 202. Positioning strip; 203. Hydraulic platform; 204. Rotating column; 205. Clamping plate; 206. Sliding groove three; 207. Sliding block; 208. Spring two; 209. Clamping groove; 3. Sliding groove one; 4. Sliding column; 5. Folding rod; 6. Connecting column; 7. Support platform; 8. Fixing block; 9. Sliding groove two; 10. L-shaped block; 11. Spring one; 12. Limiting groove two; 13. Telescopic rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figures 1 to 8 This utility model embodiment provides an auxiliary installation component for the electrical maintenance of a gantry crane, including a support base 1, an auxiliary mechanism 2, and a support platform 7 disposed above the support base 1. The support base 1 is used to bear the overall load and provide stable ground support. The inner wall of the support base 1 is provided with a sliding groove 3, which extends along the length of the support base 1. A sliding column 4 is slidably connected in the sliding groove 3. A folding rod 5 is rotatably connected to the outer wall of the sliding column 4. The folding rod 5 has a scissor structure. A connecting column 6 is rotatably connected at the intersection of the two folding rods 5. The top of the connecting column 6 is slidably connected to the bottom of the support platform 7. The horizontal reciprocating movement of the sliding column 4 in the sliding groove 3 drives the folding rod 5 to open and close, thereby driving the support platform 7 to achieve vertical lifting and lowering.

[0022] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 A telescopic rod 13 is connected between the top of the support base 1 and the bottom of the support platform 7. The telescopic rod 13 provides auxiliary support and vertical guidance during the lifting and lowering of the support platform 7. A limiting groove 12 is opened on the inner wall of the folding rod 5. A fixing block 8 is fixedly connected to the top front side of the support base 1. A sliding groove 9 is opened on both the left and right sides of the inner wall of the fixing block 8. An L-shaped block 10 is slidably connected in the sliding groove 9. A spring 11 is connected between the outer wall of the L-shaped block 10 and the inner wall of the sliding groove 9. Under the elastic force of the spring 11, the L-shaped block 10 is suitable for being inserted into the limiting groove 12, thereby locking the position of the folding rod 5.

[0023] Please refer to Figure 3 , Figure 6 and Figure 8A positioning groove 201 is provided on the rear side of the inner wall of the support base 1. A positioning strip 202 is slidably connected in the positioning groove 201. A hydraulic platform 203 is fixedly connected to the top of the positioning strip 202. The hydraulic platform 203 can move horizontally with the positioning strip 202 to adjust its position. To fix the hydraulic platform 203, rotating columns 204 are rotatably connected to the left and right sides of the inner wall of the support base 1. A clamping plate 205 is fixedly connected to the outer wall of the rotating column 204. The clamping plate 205 rotates with the rotating column 204 to press the hydraulic platform 203. To prevent the rotating column 204 from rotating accidentally, a slot 209 is provided on the inner wall of the rotating column 204. The inner wall of the support base 1 is provided with... There is a sliding groove 206, and a sliding block 207 is slidably connected in the sliding groove 206. A spring 208 is connected to the outer wall of the sliding block 207. Under the elastic force of the spring 208, the sliding block 207 is suitable to be inserted into the slot 209 to limit the rotation of the rotating column 204. There are four sets of telescopic rods 13, which are located at the four corners of the top of the support base 1. The two ends of the telescopic rods 13 are fixedly connected to the support base 1 and the support platform 7, respectively. One end of the spring 11 is fixedly connected to the outer wall of the L-shaped block 10, and the other end abuts against the bottom wall of the sliding groove 29, so that the L-shaped block 10 is always subjected to a thrust pointing in the direction of the limiting groove 22.

[0024] Working principle: When maintenance is required, a sliding groove 3 is provided on the inner wall of the support base 1. A sliding column 4 is slidably connected to the sliding groove 3. A folding rod 5 is rotatably connected to the outer wall of the sliding column 4. A limit groove 12 is provided on the inner wall of the folding rod 5. A connecting column 6 is rotatably connected at the intersection of the two folding rods 5. A support platform 7 is slidably connected to the top of the connecting column 6. A fixing block 8 is provided on the front top of the support base 1. Sliding grooves 9 are provided on both the left and right sides of the inner wall of the fixing block 8. An L-shaped block 10 is slidably connected to the inner wall of the sliding groove 9. A spring 11 is provided on the outer wall of the L-shaped block 10. A telescopic rod 13 is provided between the top of the support base 1 and the bottom of the support platform 7. Therefore, when maintaining the gate machine, the outer walls of the two L-shaped blocks 10 can be pressed down. Slide towards the center, causing spring 11 to be squeezed by the L-shaped blocks 10 on both sides. Then, slide the sliding column 4 along the inner wall of the sliding groove 3, causing the folding rods 5 on both sides to retract towards the center. The connecting column 6 can ensure that the folding rods 5 remain stable during the retraction process. Then, the support platform 7 rises and falls under the action of the folding rods 5. While the support platform 7 rises and falls, the telescopic rod 13 can ensure that it remains stable during the rise. Then, the L-shaped blocks 10 on both sides can be released, so that the L-shaped blocks 10 on both sides are bounced into the limiting groove 12 under the elastic force of spring 11, which can then lock the folding rods 5 and prevent them from loosening, thus maintaining stability during maintenance. This allows the height of the device to be freely adjusted and can be stored in time when not needed, improving the practicality of the device. During operation, the auxiliary mechanism 2 contains multiple structures. A positioning groove 201 is provided on the rear side of the inner wall of the support base 1. A positioning strip 202 is slidably connected to the inner wall of the positioning groove 201. A hydraulic platform 203 is provided on the top of the positioning strip 202. Rotating columns 204 are rotatably connected to both the left and right sides of the inner wall of the support base 1. A slot 209 is provided on the inner wall of the rotating column 204, and a locking plate 205 is provided on the outer wall of the rotating column 204. A sliding groove 206 is provided on the inner wall of the support base 1. A sliding block 207 is slidably connected to the inner wall of the sliding groove 206. A spring 208 is provided on the outer wall of the sliding block 207. Therefore, when the auxiliary mechanism 2 is not needed, the sliding block 207 can be slid outward along the inner wall of the sliding groove 206, causing the spring 208 to be compressed by the sliding block 207, thereby preventing the rotating column 204 from being compressed by the sliding block 207. 07 is stuck, then the rotating column 204 can be rotated, and then the hydraulic table 203 is not stuck by the clamping plate 205. Then the positioning strip 202 can be slid along the inner wall of the positioning groove 201. After that, the hydraulic table 203 can be removed. When the auxiliary mechanism 2 is needed, the sliding block 207 can be slid along the inner wall of the sliding groove 206 to the outer wall, so that the spring 208 is squeezed. Alternatively, the rotating column 204 can be rotated, and then the positioning strip 202 and the hydraulic table 203 can be slid along the inner wall of the positioning groove 201. Then the rotating column 204 can be rotated, and then the sliding block 207 can be released, so that the sliding block 207 is bounced into the clamping groove 209 under the elastic force of the spring 208, which can then lock the rotating column 204 to prevent the rotating column 204 from rotating. This realizes the auxiliary device during maintenance, making the device more stable during operation, and the operation is simple, convenient and quick.

Claims

1. A gantry crane electrical maintenance auxiliary installation component, comprising: The support base (1), the auxiliary mechanism (2) and the support platform (7) set above the support base (1) are provided. The inner wall of the support base (1) is provided with a sliding groove (3). A sliding column (4) is slidably connected in the sliding groove (3). A folding rod (5) is rotatably connected to the outer wall of the sliding column (4). Its characteristics are: A connecting column (6) is rotatably connected at the intersection of the folding rod (5). The top of the connecting column (6) is slidably connected to the bottom of the support platform (7). A telescopic rod (13) is fixedly connected between the top of the support base (1) and the bottom of the support platform (7). A limiting groove (12) is opened on the inner wall of the folding rod (5). A fixing block (8) is fixedly connected to the front top of the support base (1). A sliding groove (9) is opened on both the left and right sides of the inner wall of the fixing block (8). An L-shaped block (10) is slidably connected in the sliding groove (9). A spring (11) is connected between the outer wall of the L-shaped block (10) and the inner wall of the sliding groove (9). Under the elastic force of the spring (11), the L-shaped block (10) slides along the sliding groove (9) and is inserted into the limiting groove (12) to lock the folding rod (5).

2. The auxiliary installation component for electrical maintenance of a gantry crane according to claim 1, characterized in that, The support base (1) has a positioning groove (201) on the rear side of its inner wall. A positioning strip (202) is slidably connected in the positioning groove (201). A hydraulic platform (203) is fixedly connected to the top of the positioning strip (202). The hydraulic platform (203) moves horizontally back and forth along the positioning groove (201) with the positioning strip (202).

3. The auxiliary installation component for electrical maintenance of a gantry crane according to claim 2, characterized in that, The inner wall of the support base (1) is rotatably connected to the left and right sides of the rotating column (204). The outer wall of the rotating column (204) is fixedly connected to the clamping plate (205). When the clamping plate (205) rotates with the rotating column (204) to the first position, it presses the hydraulic platform (203). When it rotates to the second position, it releases the hydraulic platform (203).

4. The auxiliary installation component for electrical maintenance of a gantry crane according to claim 3, characterized in that, The inner wall of the rotating column (204) is provided with a slot (209), the inner wall of the support base (1) is provided with a sliding groove three (206), a sliding block (207) is slidably connected in the sliding groove three (206), and a spring two (208) is connected to the outer wall of the sliding block (207).

5. The auxiliary installation component for electrical maintenance of a gantry crane according to claim 4, characterized in that, The sliding block (207) is engaged in the slot (209) of the rotating column (204) under the elastic force of the second spring (208) to restrict the rotation of the rotating column (204) around its axis. When the sliding block (207) is squeezed by the second spring (208) by the external force and slides along the third sliding groove (206), it disengages from the slot (209).

6. The auxiliary installation component for electrical maintenance of a gantry crane according to claim 1, characterized in that, The telescopic rod (13) is provided in four sets and is distributed at the four corners of the top of the support base (1). The two ends of the telescopic rod (13) are fixedly connected to the support base (1) and the support platform (7) respectively.

7. The auxiliary installation component for electrical maintenance of a gantry crane according to claim 1, characterized in that, One end of the spring (11) is fixedly connected to the outer wall of the L-shaped block (10), and the other end abuts against the bottom wall of the sliding groove (9).

8. The auxiliary installation component for electrical maintenance of a gantry crane according to claim 1, characterized in that, The sliding groove (3) extends along the length of the support (1).