Flexible unloading mechanism in pneumatic lifting device

Abstract

The utility model discloses a flexible unloading mechanism in a pneumatic lifting device, which comprises a lifting platform, a pneumatic lifting component, an operating handle component and a flexible unloading component, and the operating handle component operates the pneumatic lifting component to unload through the flexible unloading component; the operating handle assembly comprises an operating rod and an unloading handle, the operating rod is movably arranged at the end of the lifting platform, and the unloading handle is installed at the top end of the operating rod. The flexible unloading assembly comprises an unloading connecting rod arranged on the side of the pneumatic lifting assembly, the unloading connecting rod is movably installed with a rotating shaft as a fulcrum, the bottom of the unloading connecting rod makes contact with an unloading ejector rod of the pneumatic lifting assembly, the top of the unloading connecting rod is connected with one end of a steel wire rope, and the connecting position of the unloading connecting rod and the steel wire rope is sleeved with a reset spring. The reset spring is positioned through the supporting plate, and the other end of the steel wire rope penetrates out of the lifting platform and is in transmission connection with the unloading handle. The unloading handle and the unloading connecting rod which are connected through the flexible steel wire rope are arranged at the top end of the operating rod and in the lifting platform respectively, and long-distance flexible transmission is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lifting device field, especially to a kind of flexible unloading mechanism in pneumatic lifting device. BACKGROUND

[0002] Lifting device is the power generated by gas compression, the pressure generated by compressed gas through pneumatic system (including cylinder, air valve, air pipe, etc.) to drive the piston rod movement in cylinder, to realize lifting action, it is widely used in various occasions needing lifting, support or moving heavy objects.

[0003] Since the operating handle of pneumatic lifting device and pneumatic system are far away, if the device for unloading operation is set at the operating handle, the transmission structure precision of operating handle and pneumatic system is required higher. Therefore, the usual way is to set the unloading device near the pneumatic system.

[0004] For example, the patent number 202321011649.4 discloses a kind of automobile lifting machine convenient to adjust, including the oil pump being installed on the chassis, the output shaft of oil pump is hinged with connecting frame, the both ends of connecting frame are connected with connecting piece through first rotating shaft, the bottom end of connecting piece is abutted with safety tooth being arranged on the chassis, connecting frame can rotate around first rotating shaft, connecting block is sleeved on first rotating shaft, connecting block can rotate with first rotating shaft, connecting block is connected with lifting arm, the bottom end of handle is fixed on connecting frame, lifting pedal and pressure relief pedal are arranged on oil pump, oil pump is controlled by lifting pedal and pressure relief pedal, one end of lifting arm is arranged on the chassis, the other end of lifting arm is connected with tray, tray extends along the length direction of chassis.

[0005] The above technical scheme sets foot pedal for unloading control, when needing to unload pressure of oil pump, step on pressure relief pedal, solve the problem that existing lifting machine needs worker to bend down, control oil pump through handle, operation is more inconvenient.

[0006] But the above technical scheme sets two sets of control devices of foot pedal and operating handle, resulting in the occupation volume of whole device is larger.

[0007] Therefore, it is necessary to improve such a structure to overcome the above defects. UTILITY MODEL CONTENT

[0008] The utility model aims at providing a kind of flexible unloading mechanism in pneumatic lifting device to solve the problems in prior art.

[0009] The above technical purpose of the utility model is realized by the following technical scheme:

[0010] The utility model provides a flexible unloading mechanism in pneumatic lifting device, including lifting platform, pneumatic lifting assembly, operating handle assembly and flexible unloading assembly, operating handle assembly operates pneumatic lifting assembly unloading through flexible unloading assembly,

[0011] The operating handle assembly includes an operating rod and an unloading handle, the operating rod is movably arranged at an end of the lifting platform, and the unloading handle is installed at a top end of the operating rod.

[0012] The flexible unloading assembly includes an unloading connecting rod arranged at a side of the pneumatic lifting assembly, the unloading connecting rod is movably installed with a rotating shaft as a fulcrum, a bottom of the unloading connecting rod is in contact with an unloading top rod of the pneumatic lifting assembly, a top of the unloading connecting rod is connected with one end of a steel wire rope, a return spring is sleeved at a connection position of the unloading connecting rod and the steel wire rope, the return spring is positioned by a support plate, the other end of the steel wire rope is led out of the lifting platform and is in transmission connection with the unloading handle.

[0013] An end of the unloading handle is movably connected with the operating rod through a pin shaft and can rotate with the pin shaft as a fulcrum, and a traction head for connecting the steel wire rope is arranged on the unloading handle.

[0014] Further, a main body of the steel wire rope is arranged in a spring sheath, both ends of the spring sheath are respectively extended to the support plate and the unloading handle, and are respectively fixed by a sheath joint.

[0015] Further, one side of the unloading connecting rod is provided with a traction hole and is connected with the steel wire rope through the traction hole, and one side of the unloading connecting rod is provided with a rotating hole and is movably installed in the lifting platform through the rotating hole.

[0016] In summary, the utility model has the following beneficial effects:

[0017] The unloading handle and the unloading connecting rod connected by the flexible steel wire rope are arranged at the top end of the operating rod and in the lifting platform respectively, so that flexible transmission of a long distance is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the schematic diagram of the pneumatic lifting device.

[0019] Figure 2 is the schematic diagram of the operating handle assembly.

[0020] Figure 3 is the schematic diagram of the connection position of the operating rod and the unloading handle.

[0021] Figure 4 is the schematic diagram of the flexible unloading assembly.

[0022] Figure 5It is the schematic diagram of the unloading connecting rod of the utility model. DETAILED DESCRIPTION

[0023] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with the drawings and specific embodiments.

[0024] As Figure 1 And to Figure 5 The utility model discloses a flexible unloading mechanism in pneumatic lifting device, including lifting platform 1, pneumatic lifting assembly 2, operating handle assembly 3 and flexible unloading assembly 4, operating handle assembly 3 is through flexible unloading assembly 4 and operates pneumatic lifting assembly 2 unloading;

[0025] Operating handle assembly 3 includes operating rod 31 and unloading handle 32, and operating rod 31 is movably arranged at the end of lifting platform 1, and unloading handle 32 is installed at the top end of operating rod 31.

[0026] Flexible unloading assembly 4 includes unloading connecting rod 41 arranged at the side of pneumatic lifting assembly 2, and unloading connecting rod 41 is movably installed with rotating shaft 42 as fulcrum, the bottom of unloading connecting rod 41 is in contact with unloading top rod 21 of pneumatic lifting assembly 2, the top of unloading connecting rod 41 is connected with one end of steel wire rope 43, reset spring 44 is sleeved at the connection of unloading connecting rod 41 and steel wire rope 43, reset spring 44 is positioned through support plate 45, and the other end of steel wire rope 43 is drawn out of lifting platform 1 and is in transmission connection with unloading handle 32.

[0027] The end of unloading handle 32 is movably connected with operating rod 31 through pin shaft 321, and can rotate with pin shaft 321 as fulcrum, and the traction head 322 for connecting steel wire rope 43 is arranged on unloading handle 32.

[0028] The main body of steel wire rope 43 is arranged in spring sheath 46, and the both ends of spring sheath 46 extend to support plate 45 and unloading handle 32 respectively, and are fixed through a sheath connector 47 respectively.

[0029] One side of unloading connecting rod 41 is provided with traction hole 411, and is connected with steel wire rope 43 through traction hole 411, and one side of unloading connecting rod 41 is provided with rotating hole 412, and is movably installed in the inside of lifting platform 1 through rotating shaft 42 passing through rotating hole 412.

[0030] The working principle of the utility model is as follows:

[0031] When the pneumatic lifting assembly 2 needs to be unloaded, the unloading handle 32 is pulled upward, the pulling force of the unloading handle 32 acts on the unloading connecting rod 41 through the steel wire rope 43, the unloading connecting rod 41 rotates about the rotating shaft 42 under the action of the pulling force, since the bottom of the unloading connecting rod 41 is in contact with the unloading top rod 21 of the pneumatic lifting assembly 2, the unloading connecting rod 41 will push the unloading top rod 21, thereby the unloading gas path inside the pneumatic lifting assembly 2 is turned on, and the unloading operation of the pneumatic lifting assembly 2 is completed by operating the unloading handle 32.

[0032] After the unloading is completed, the unloading handle 32 is released, and the unloading connecting rod 41 returns to the initial position under the action of the reset spring 44.

[0033] In the present text, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of expressing the clarity and description of the technical scheme, and therefore cannot be understood as a limitation on the present application.

[0034] In the present text, the terms "including", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to containing the listed elements, other elements not explicitly listed can also be contained.

[0035] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A flexible unloading mechanism in a pneumatic lifting device, comprising a lifting platform (1), a pneumatic lifting assembly (2), an operating handle assembly (3) and a flexible unloading assembly (4), wherein the operating handle assembly (3) operates the pneumatic lifting assembly (2) to unload through the flexible unloading assembly (4); It is characterized in that The operating handle assembly (3) comprises an operating rod (31) and an unloading handle (32), wherein the operating rod (31) is movably arranged at the end of the lifting platform (1), and the unloading handle (32) is installed at the top end of the operating rod (31); The flexible unloading assembly (4) includes an unloading connecting rod (41) arranged on the side of the pneumatic lifting assembly (2). The unloading connecting rod (41) is movably installed with a rotating shaft (42) as a fulcrum. The bottom of the unloading connecting rod (41) contacts the unloading top rod (21) of the pneumatic lifting assembly (2). The top of the unloading connecting rod (41) is connected to one end of a steel wire rope (43). A return spring (44) is sleeved at the connection between the unloading connecting rod (41) and the steel wire rope (43). The return spring (44) is positioned by a support plate (45). The other end of the steel wire rope (43) passes through the lifting platform (1) and is transmission-connected to the unloading handle (32).

2. The flexible unloading mechanism in the pneumatic lifting device according to claim 1, characterized in that: The end of the unloading handle (32) is movably connected to the operating rod (31) through a pin shaft (321) and can rotate with the pin shaft (321) as a fulcrum. A traction head (322) for connecting a steel wire rope (43) is provided on the unloading handle (32).

3. The flexible unloading mechanism in the pneumatic lifting device according to claim 1, characterized in that: The main body of the steel wire rope (43) is arranged in a spring sheath (46), and the two ends of the spring sheath (46) extend to the support plate (45) and the unloading handle (32) respectively, and are fixed by a sheath joint (47) respectively.

4. The flexible unloading mechanism in the pneumatic lifting device according to claim 1, characterized in that: One side of the unloading connecting rod (41) is provided with a traction hole (411) and is connected to the wire rope (43) through the traction hole (411). One side of the unloading connecting rod (41) is provided with a rotation hole (412) and is movably installed inside the lifting platform (1) through a rotation shaft (42) passing through the rotation hole (412).

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