A cylinder block structure, a connecting structure, and a lifting trolley comprising both structures.

Abstract

This application belongs to the field of auxiliary equipment for the transfer / installation of electrical equipment, specifically relating to a cylinder structure, a connecting structure, and a lifting trolley incorporating both structures. It includes a trolley base, a placement platform, and cross lifting rods. The placement platform is driven to lift by a lifting hydraulic cylinder. The lifting hydraulic cylinder adopts a compact structure with the cylinder end and the pressurizing element collinear, equipped with a hinged rod and a connecting structure. The hinged rod is connected to the trolley base via a hinged seat, and a step rod, in conjunction with a transmission rod, transmits torque, avoiding mechanical interference. Support rods are provided between the cross lifting rods and hinged to the actuating hydraulic cylinder, optimizing the force direction. This utility model has a compact structure, is suitable for confined spaces in computer rooms, significantly improves the safety and efficiency of equipment installation, and reduces the labor intensity of maintenance personnel.

Description

Technical Field

[0001] This application belongs to the field of auxiliary equipment for the transfer / installation of electrical equipment, specifically relating to a cylinder structure, a connection structure, and a lifting trolley comprising both structures. Background Technology

[0002] Power supply company dispatch automation room is usually equipped with equipment such as servers, workstations, switches, and firewalls, and automation operation and maintenance personnel face frequent equipment installation work.

[0003] The automated data center uses standard 42U racks. Each time equipment is installed in the rack, two automated maintenance personnel are required to lift the equipment to the designated height using a front and rear manual lifting method. Then, a third maintenance personnel assists in tightening the screws. Due to the limited operating space between racks, maintenance personnel often face insufficient strength, which may result in equipment falling and injuring personnel or affecting the normal operation of other equipment, posing a significant safety hazard to maintenance personnel and data center equipment.

[0004] The problems of large numbers of people involved in equipment installation, long installation times, high labor intensity for maintenance personnel, and insufficient safety are becoming increasingly prominent. How to quickly and safely install data center equipment within limited space has become an urgent problem for maintenance personnel, and a solution urgently needs to be found.

[0005] Chinese invention patent CN202411762724.X discloses a special tool for replacing current transformers in switchgear, including a transfer trolley. A support platform is provided above the transfer trolley, and a lifting frame is provided between the support platform and the transfer trolley. Cross rods are provided inside the lifting frame, and connecting rods are connected to the ends of the cross rods. Lifting hydraulic cylinders are provided between the connecting rods.

[0006] The existing technology can realize the function of free transfer lifting equipment. However, the specific details of the connection between the hydraulic cylinder and the lifting mechanism are not disclosed in this document. The volume of the trolley is limited. A reasonable hydraulic cylinder structure can make the accessories of the lifting trolley more compact and optimize the lifting. At the same time, the existing technology does not disclose how the hydraulic cylinder is lifted by the components on the trolley. Utility Model Content

[0007] Technical problem: The technical problem to be solved by this application is to provide a structure for a lifting hydraulic cylinder adapted to a trolley, and to provide a compact connection method in conjunction with the structure to realize the lifting of the trolley, thereby solving the problem of transportation and lifting of equipment for maintenance and installation in the computer room.

[0008] Technical Solution: A cylinder structure, which mainly refers to the structure of the cylinder end of a pressure actuator such as a hydraulic cylinder or pneumatic cylinder. In the lifting trolley mentioned in this application, it is part of a lifting hydraulic cylinder. The overall lifting hydraulic cylinder includes an actuating hydraulic cylinder and a pressurizing hydraulic cylinder. The pressurizing hydraulic cylinder charges the actuating hydraulic cylinder through reciprocating motion, thereby extending the actuating hydraulic cylinder. The structure includes a cylinder end and a hinge component disposed at the cylinder end; it also includes a pressurizing element directly connected collinearly to the end of the cylinder end. The pressurizing element includes a pressurizing cylinder, a pressurizing piston, and a return spring. The base of the pressurizing cylinder is connected to the base of the cylinder end, the pressurizing piston is sleeved inside the pressurizing cylinder, and the two ends of the return spring are respectively connected to the base of the pressurizing cylinder and the end of the pressurizing piston.

[0009] The connecting component consists of two hinged rods, located on both sides of the pressurizing element and at a certain distance from the outer wall of the pressurizing cylinder. This distance is preferably sufficient to allow a helical return spring to be fitted onto the pressurizing cylinder without any mechanical interference. The length of the hinged component is greater than the length of the pressurizing element when it reaches its maximum stroke.

[0010] In this structure, the pressurizing element and the actuator cylinder are arranged coaxially, making the structure of the actuator and pressurizing element of the lifting hydraulic cylinder more compact. This is suitable for the small size of the trolley. The two extended hinge rods can be hinged to the trolley body to provide support. The length of the hinge rods is greater than the length of the pressurizing element, so that the connection structure covers the functional structure as a whole, further improving the compactness of the lifting hydraulic cylinder during installation and reducing the installation space.

[0011] Furthermore, the hinge rod consists of two straight rods, with their front ends fixedly connected to both sides of the pressurizing cylinder base and angled in a designated direction. The hinge rods point parallel to the direction of the cylinder's central axis. The aforementioned designated direction is the upward-facing side of the pressurizing cylinder base. This arrangement allows the installed hydraulic cylinder to be lowered by a certain amount of space, providing more space for the installation of the lifting rod.

[0012] Furthermore, a limiting plate is provided near the end of the pressurizing piston, and a return spring is provided between the limiting plate and the base of the pressurizing cylinder, with the pressurizing cylinder located at the center of the return spring.

[0013] This application also provides a connection structure, including a hinge seat for connecting the aforementioned hinge rod, the hinge seat having a first pin hole, and the hinge rod having a second pin hole corresponding to the first pin hole near its end.

[0014] It also includes a pedal, with a connector at the front end of the pedal, and a third pin hole corresponding to the first pin hole on the connector; a fourth pin hole is also provided on one side of the third pin hole, and the fourth pin hole is used to connect to the end of the aforementioned pressurizing piston.

[0015] The side view of the connector is a triangular shape with the apex facing down. The fourth pin hole is located at the apex, and the third pin hole is located above or diagonally above the fourth pin hole.

[0016] Furthermore, a fifth pin hole is provided at the end of the pressurizing piston; the fifth pin hole is used to hinge one end of the transmission rod, and the other end of the transmission rod connects to the fourth pin hole. If the fourth pin hole of the connector is directly connected to the fifth pin hole, since the connector as a whole rotates around the axis with the third pin hole, the actual movement path of the fourth pin hole is an arc. In this application, the pressurizing piston is collinear with the hydraulic cylinder, so mechanical interference will occur, resulting in greater wear or even the inability to extend and retract the pressurizing piston. Therefore, a transmission rod with both ends hinged to the fourth pin hole and the fifth pin hole respectively is needed to transmit torque to realize the extension and retraction of the pressurizing piston.

[0017] Furthermore, the central axes of the first pin hole, the second pin hole, the third pin hole, the fourth pin hole, and the fifth pin hole are parallel to each other.

[0018] This application also provides a lifting trolley, including a trolley base and a placement platform. The placement platform is parallel to the trolley base. The bottom of the placement platform and the top of the trolley base are connected by several sections of cross lifting rods. Two cross rods connected to the placement platform / trolley base are fixedly connected to the placement platform / trolley base, and the other is slidably connected to the placement platform / trolley base.

[0019] The aforementioned connecting structure is provided on one side of the bottom of the vehicle base, and the operation of the lifting hydraulic cylinder is realized through this connecting structure;

[0020] It also includes an actuator hydraulic cylinder, the cylinder body of which is connected to the aforementioned cylinder body structure and the aforementioned connecting structure.

[0021] Furthermore, the cross lifting bars are arranged symmetrically on the left and right, and a support rod is provided between the two opposing cross bars near the base of the vehicle. The support rod is hinged to the piston end of the hydraulic cylinder.

[0022] Furthermore, a raised support seat is provided in the middle of the support rod, and the support seat is hinged to the end of the actuator piston. The hinge hole or hinge pin on the support seat is parallel to the central axis of the aforementioned first to fifth hinge holes. The support seat points obliquely upward, with the tilt angle biased towards the side where the actuator hydraulic cylinder is located. The design of the support seat optimizes the force direction of the support rod during lifting, making the lifting rod easier to lift accordingly.

[0023] Furthermore, at least one reinforcing plate is provided on the bottom side of the base, and the hinge seat consists of two opposing plates perpendicular to the reinforcing plate. The hinge seat is positioned in the center to ensure more balanced support. The first pin hole is located on the plate.

[0024] The beneficial effects of this application are as follows:

[0025] 1. This lifting trolley, through its compact lifting hydraulic cylinder structure and connection structure, enables the safe transfer and lifting of equipment in a confined space, replacing the traditional manual lifting method. This effectively reduces the risk of equipment falling and injuring personnel or damaging other equipment, and significantly improves the safety of automated computer room equipment installation.

[0026] 2. With the adoption of the lifting trolley, the equipment installation does not require the cooperation of multiple people. Only one person needs to operate the trolley to complete the transfer and lifting of the equipment, which reduces the number of maintenance personnel required, reduces labor intensity, and solves the problems of large number of people and long time consumption in the traditional installation process.

[0027] 3. The cylinder end of the lifting hydraulic cylinder is set on the same line as the pressurizing element. With the extension hinge rod and compact connection structure, the overall structure of the trolley is more compact and occupies less space. It is suitable for the narrow operating space between 42U racks and solves the problem of limited space in the computer room.

[0028] 4. The lifting trolley achieves rapid lifting and precise positioning of the equipment through the coordinated work of hydraulic cylinders and cross lifting bars. Combined with the transfer function, it significantly shortens the equipment installation time and improves the efficiency of automated operation and maintenance.

[0029] 5. The length of the hinge rod is greater than the maximum stroke of the pressurizing element. Combined with the hinge seat and pin hole connection, it provides stable support and reduces shaking during operation.

[0030] The transmission rod design avoids mechanical interference between the connecting parts and the pressurizing piston, reduces wear, and extends the service life of the lifting hydraulic cylinder.

[0031] The upward-sloping design of the support base optimizes the direction of force, making the cross lifting rods more responsive to lifting actions and improving the overall structural stability.

[0032] 6. The trolley's placement platform and cross lifting bar design allow for flexible height adjustment. Combined with the precise control of the hydraulic cylinder, it adapts to the installation requirements of different specifications of servers, workstations, switches, and other equipment, exhibiting strong versatility and practicality.

[0033] 7. The design of the pedal and connecting parts simplifies the operation of the lifting hydraulic cylinder. Maintenance personnel can achieve the lifting function through simple pedal operation, reducing the difficulty of operation. At the same time, the setting of the return spring and limit plate ensures the stable return of the pressurizing element, facilitating daily maintenance. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of the cylinder end and its additional connecting mechanism in Embodiment 1 of this application.

[0035] Figure 2This is a schematic front view of the lifting hydraulic cylinder according to Embodiment 1 of this application;

[0036] Figure 3 This is a three-dimensional schematic diagram of the lifting hydraulic cylinder according to Embodiment 1 of this application;

[0037] Figure 4 This is a front view schematic diagram of Embodiment 2 of this application;

[0038] Figure 5 This is a side view of Embodiment 2 of this application;

[0039] Figure 6-7 This is a three-dimensional schematic diagram of Embodiment 2 of this application;

[0040] Figure 8 This is a cross-sectional schematic diagram of Embodiment 2 of this application.

[0041] 1. Cylinder body end; 2. Pressurizing cylinder; 3. Pressurizing piston; 4. Return spring; 5. Limiting plate; 6. Hinge rod; 7. Car base; 8. Placement platform; 9. Casters; 10. Hand push handle; 11. Reinforcing plate; 12. Hinge seat; 13. First pin hole; 14. Second pin hole; 15. Step rod; 16. Connector; 17. Third pin hole; 18. Fourth pin hole; 19. Fifth pin hole; 20. Conductor rod; 21. Support rod; 22. Support base; 23. Control rod; 24. Control rope. Detailed Implementation

[0042] This application provides two embodiments for reference by those skilled in the art. Embodiment one is a cylinder block structure, in which the connecting structure is installed on the lifting trolley. The lifting trolley is used as the overall embodiment for the description of the connecting structure and the lifting trolley. Details are as follows:

[0043] Example 1,

[0044] like Figure 1-3 As shown, a cylinder structure is provided. This structure mainly refers to the structure of the cylinder end 1 of a pressure actuator such as a hydraulic cylinder or pneumatic cylinder. In the lifting trolley mentioned in this application, it is part of the lifting hydraulic cylinder. The overall lifting hydraulic cylinder includes an actuator hydraulic cylinder and a pressurizing hydraulic cylinder. The pressurizing hydraulic cylinder charges the actuator hydraulic cylinder through reciprocating motion, thereby achieving the extension of the actuator hydraulic cylinder.

[0045] Reference Figure 1 The structure includes a cylinder end 1 and a hinge member disposed on the cylinder end 1; see reference. Figure 1-3The structure also includes a pressurizing element that is directly connected to the end of the cylinder body 1 along the same line. The pressurizing element includes a pressurizing cylinder 2, a pressurizing piston 3, and a return spring 4. The base of the pressurizing cylinder 2 is connected to the base of the cylinder body 1. The pressurizing piston 3 is sleeved inside the pressurizing cylinder 2. The two ends of the return spring 4 are respectively connected to the base of the pressurizing cylinder 2 and the end of the pressurizing piston 3. Specifically, a limiting plate 5 is provided near the end of the pressurizing piston 3. The return spring 4 is provided between the limiting plate 5 and the base of the pressurizing cylinder 2. The pressurizing cylinder 2 is located at the center of the return spring 4.

[0046] Reference Figure 1 The connecting parts consist of two hinged rods 6, respectively located on both sides of the pressurizing element and at a certain distance from the outer wall of the pressurizing cylinder 2. This distance is preferably such that a spiral return spring 4 can be fitted onto the pressurizing cylinder 2 without any mechanical interference. The length of the hinged parts is greater than the length of the pressurizing element when it reaches its maximum stroke.

[0047] The hinge rod 6 consists of two straight rods, the front ends of which are fixedly connected to both sides of the base of the pressurizing cylinder 2 and are biased in a specified direction. The hinge rod 6 points parallel to the direction of the central axis of the cylinder body. The aforementioned specified direction is the upward side of the base of the pressurizing cylinder 2. This arrangement allows the installed hydraulic cylinder to be lowered by a certain amount of space, providing more space for the installation of the lifting rod.

[0048] Example 2,

[0049] like Figure 4-8 As shown, a lifting trolley includes a base 7 and a placement platform 8. The placement platform 8 is parallel to the base 7. The bottom of the placement platform 8 is connected to the top of the base 7 by two cross lifting rods. One of the two cross rods connected to the placement platform 8 / base 7 is fixedly connected to the placement platform 8 / base 7, and the other is slidably connected to the placement platform 8 / base 7. The upper surface of the placement platform is covered with silicone material, which serves the dual purpose of anti-slip and cushioning protection.

[0050] The main body of the base 7 is a rectangular frame structure welded from angle steel. Those skilled in the art can also use square steel for welding. Four universal wheels 9 with brakes are provided at the four corners of the bottom of the base 7.

[0051] A push handle 10 is provided on one side of the base 7. A vertically downward reinforcing plate 11 is provided at the bottom on the same side as the push handle 10. Two parallel plates perpendicular to the reinforcing plate 11 are provided at the center of the reinforcing plate 11 as a hinge seat 12. A first pin hole 13 is provided on the hinge seat 12. A second pin hole 14 corresponding to the first pin hole 13 is provided near the end of the hinge rod 6.

[0052] It also includes a pedal 15, the end of which extends outward and bends. A connector 16 is provided at the front end of the pedal 15. A third pin hole 17 corresponding to the first pin hole 13 is provided on the connector 16. A fourth pin hole 18 is also provided on one side of the third pin hole 17. The fourth pin hole 18 is used to connect to the end of the pressurizing piston 3.

[0053] The side view of connector 16 is generally triangular in shape, with the apex inverted and facing downwards. The fourth pin hole 18 is located at the apex, and the third pin hole 17 is located above the fourth pin hole 18.

[0054] The end of the pressurizing piston 3 is provided with a fifth pin hole 19; the fifth pin hole 19 is used to hinge one end of the transmission rod 20, and the other end of the transmission rod 20 is connected to the fourth pin hole 18. If the fourth pin hole 18 of the connecting member 16 is directly connected to the fifth pin hole 19, since the connecting member 16 rotates around the axis with the third pin hole 17, the actual movement path of the fourth pin hole 18 is an arc. In this application, the pressurizing piston 3 is collinear with the hydraulic cylinder, so mechanical interference will occur, resulting in greater wear or even the inability to extend and retract the pressurizing piston 3. Therefore, the transmission rod 20, which is hinged at both ends to the fourth pin hole 18 and the fifth pin hole 19 respectively, is needed to transmit torque to realize the extension and retraction of the pressurizing piston 3.

[0055] The central axes of the first pin hole 13, the second pin hole 14, the third pin hole 17, the fourth pin hole 18, and the fifth pin hole 19 are parallel to each other.

[0056] The cross lifting rods are symmetrically arranged on the left and right sides. A support rod 21 is provided between the two opposing cross rods near the base 7. The support rod 21 is hinged to the piston end of the hydraulic cylinder. The cylinder body end 1 of the hydraulic cylinder includes the cylinder body structure of Embodiment 1.

[0057] A raised support seat 22 is provided in the middle of the support rod 21, and the support seat 22 is hinged to the end of the actuator piston. The hinge hole or hinge pin on the support seat 22 is parallel to the central axis of the aforementioned first to fifth hinge holes. The support seat 22 points obliquely upward, with the tilt angle biased towards the side where the actuator hydraulic cylinder is located. The design of the support seat 22 optimizes the force direction of the support rod 21 during lifting, making the lifting rod easier to lift accordingly.

[0058] A control lever 23 is provided on the push handle 10. The control lever 23 is connected to the control rope 24 for releasing the pressure of the hydraulic cylinder.

Claims

1. A cylinder structure, comprising a cylinder end (1) and a hinge member disposed at the cylinder end (1); Its features are, It also includes a pressurizing element that is directly connected to the end of the cylinder end (1) along the same line. The pressurizing element includes a pressurizing cylinder (2), a pressurizing piston (3), and a return spring (4). The base of the pressurizing cylinder (2) is connected to the base of the cylinder end (1). The pressurizing piston (3) is sleeved inside the pressurizing cylinder (2). The two ends of the return spring (4) are respectively connected to the base of the pressurizing cylinder (2) and the end of the pressurizing piston (3). The hinge consists of two hinge rods (6), which are respectively disposed on both sides of the pressurizing element. The length of the hinge is greater than the length of the pressurizing element when it reaches its maximum stroke.

2. The cylinder block structure as described in claim 1, characterized in that, The hinge rod (6) consists of two straight rods, the front ends of which are fixedly connected to both sides of the base of the pressurizing cylinder (2) and biased in a specified direction. The hinge rod (6) points parallel to the direction of the central axis of the cylinder.

3. The cylinder block structure as described in claim 2, characterized in that, A limiting plate (5) is provided near the end of the pressurizing piston (3), and the reset spring (4) is provided between the limiting plate (5) and the base of the pressurizing cylinder (2). The pressurizing cylinder (2) is located at the center of the reset spring (4).

4. A connection structure, characterized in that, Includes a hinge seat (12) for connecting the hinge rod (6) of claim 3, the hinge seat (12) is provided with a first pin hole (13), and the hinge rod (6) is provided with a second pin hole (14) corresponding to the first pin hole (13) near its end. It also includes a pedal (15), with a connector (16) at the front end of the pedal (15), and a third pin hole (17) corresponding to the first pin hole (13) is provided on the connector (16); a fourth pin hole (18) is also provided on one side of the third pin hole (17), and the fourth pin hole (18) is used to connect to the end of the pressurizing piston (3) according to claim 3.

5. A connection structure as described in claim 4, characterized in that, The end of the pressurizing piston (3) is provided with a fifth pin hole (19). The fifth pin hole (19) is used to hinge one end of the transmission rod (20), and the other end of the transmission rod (20) is connected to the fourth pin hole (18).

6. The connection structure as described in claim 5, characterized in that, The central axes of the first pin hole (13), the second pin hole (14), the third pin hole (17), the fourth pin hole (18), and the fifth pin hole (19) are parallel to each other.

7. A lifting trolley, comprising a trolley base (7) and a placement platform (8), wherein the placement platform (8) is parallel to the trolley base (7), the bottom of the placement platform (8) is connected to the top of the trolley base (7) by a number of cross lifting rods, wherein one of the two cross rods connected to the placement platform (8) / trolley base (7) is fixedly connected to the placement platform (8) / trolley base (7), and the other is slidably connected to the placement platform (8) / trolley base (7); Its features are, The bottom side of the vehicle base (7) is provided with the connection structure as described in claim 6; It also includes an actuator hydraulic cylinder, wherein the cylinder end (1) of the actuator hydraulic cylinder comprises the cylinder structure of claim 3.

8. A lifting trolley as described in claim 7, characterized in that, The cross lifting rods are symmetrically arranged, and a support rod (21) is provided between the two opposite cross rods near the base (7). The support rod (21) is hinged to the piston end of the hydraulic cylinder.

9. A lifting trolley as described in claim 8, characterized in that, The support rod (21) has a protruding support seat (22) in the middle, and the support seat (22) is hinged to the end of the actuator piston.

10. A lifting trolley as described in any one of claims 7-9, characterized in that, The bottom side of the vehicle base (7) is provided with at least one section of reinforcing plate (11), and the hinge seat (12) consists of two opposing plates that are perpendicular to the reinforcing plate (11). The first pin hole (13) is formed on the plate.

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