Manual fork lift for handling counter-shells
By designing a manual forklift for theater acoustic enclosures, employing a double-lever structure and caster assembly, the problems of high cost, noise, and low efficiency in handling theater acoustic enclosures have been solved. This achieves labor-saving, fast, and low-noise handling, reducing costs and protecting the health of operators.
Patent Information
- Application Number
- CN202521448243.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-10
AI Technical Summary
In existing technologies, theater acoustic shields are costly to transport, noisy, inefficient to operate, and complex to install.
Design a manual forklift with a double-lever structure, including a first-stage lever formed by the hinged connection between the movable frame and the base, and a second-stage lever formed by the hinged connection between the handle and the hinged column and the movable frame via the transmission rod. Manual handling is achieved through the linkage of the double levers. Combined with caster assembly and support structure, operation is simplified and noise is reduced.
It enables labor-saving, fast, and low-noise handling of acoustic shields, reducing costs and improving operational efficiency, protecting operator health, and is environmentally friendly and energy-saving.
Smart Images

Figure CN224677718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building equipment technology, and in particular to a manual forklift for transporting soundproof enclosures. Background Technology
[0002] The theater acoustic reflector features an arc-shaped acoustic diffuser design. The side and back panels are composed of three arc-shaped acoustic diffusers forming a tower-like structure. The two wings can be unfolded and connected for use, or folded for easy movement and storage. Currently, hydraulic or electric forklifts are typically used to move the theater acoustic reflector, which is costly and suffers from problems such as high noise levels during operation, low operational efficiency, and complex installation. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a manual forklift for transporting soundproof covers, which is simple and labor-saving to operate, while reducing costs and noise.
[0004] A manual forklift for transporting a soundproof cover according to an embodiment of the present invention includes: a base and a lifting assembly; the base is provided with a hinge column and a caster assembly, and the caster assembly is provided in multiple sets; the lifting assembly includes a handle, a transmission rod and a movable frame, the handle is disposed above the movable frame, one end of the handle is hinged to the hinge column, the movable frame is hinged to the base, one end of the transmission rod is hinged to the handle, the other end of the transmission rod is hinged to one end of the movable frame, and the transmission rod is disposed close to the hinge column.
[0005] In some embodiments of this utility model, the base is provided with a bracket and a support rod, the bracket is connected to the support rod, and the bracket is provided with a handle.
[0006] In some embodiments of this utility model, the base is vertically provided with a support rod, the support rod is provided with at least two supporting rods, and a plurality of supporting rods are arranged sequentially along the vertical direction.
[0007] In some embodiments of this utility model, the transmission rod includes a connector, and both ends of the connector are threadedly connected to adjusting rods, and the two adjusting rods are respectively hinged to the hand rod and the movable frame.
[0008] In some embodiments of this utility model, the hinged column is provided with a connecting rod, and the upper end of the connecting rod is hinged to the end of the handle.
[0009] In some embodiments of this utility model, the caster assembly includes a first connecting plate, a second connecting plate, and a plurality of rollers. The first connecting plate is vertically provided with a rotating shaft, the rotating shaft is rotatably connected to the second connecting plate, and the rollers are rotatably connected to the second connecting plate.
[0010] In some embodiments of this utility model, the second connecting plate is polygonal in shape, the rotating shaft is located at the center of the second connecting plate, and a plurality of rollers are symmetrically distributed on the bottom side of the second connecting plate.
[0011] In some embodiments of this utility model, a support plate is provided at one end of the movable frame away from the hinge post, the support plate protrudes from the base, and the support plate is located on the lower side of the base.
[0012] Compared with the prior art, the manual forklift for transporting soundproof covers according to this utility model embodiment has the following advantages: the movable frame is hinged to the base to form a first-level lever, and then one end of the handle is hinged to the hinge post on the base and hinged to the movable frame through the transmission rod to form a second-level lever. The first-level lever and the second-level lever are linked together, and the soundproof cover can be manually transported through the double lever, which saves effort, has a simple structure, improves transmission efficiency, enables the object to be lifted quickly, and saves operation time. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a manual forklift used for transporting the soundproof cover according to an embodiment of the present invention; Figure 2 This is an exploded view of a manual forklift used for transporting the acoustic shield according to an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the operation of pushing a manual forklift used for transporting the acoustic shield into the acoustic shield according to an embodiment of the present invention. Figure 4 This is a schematic diagram illustrating the operation of lifting the acoustic shield using a manual forklift for transporting the acoustic shield according to an embodiment of the present invention. Figure 5 This is a schematic diagram of a manual forklift lifting the sound-absorbing cover for transporting the sound-absorbing cover according to an embodiment of the present invention.
[0014] Explanation of reference numerals in the attached figures: Base 100; hinge column 110; connecting rod 111; caster assembly 120; caster 121; first connecting plate 122; second connecting plate 123; pivot 124; bracket 130; handle 131; support rod 140; support rod 141; hand lever 210; transmission rod 220; connector 221; adjusting rod 222; movable frame 230; support plate 231; sound reflector 300. Detailed Implementation
[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0016] like Figure 1 and Figure 2 As shown, the manual forklift for transporting soundproof covers according to this utility model embodiment includes: a base 100 and a lifting assembly; the base 100 is provided with a hinge column 110 and a caster assembly 120, and multiple sets of caster assemblies 120 are provided; the lifting assembly includes a handle 210, a transmission rod 220 and a movable frame 230, the handle 210 is disposed above the movable frame 230, one end of the handle 210 is hinged to the hinge column 110, the movable frame 230 is hinged to the base 100, one end of the transmission rod 220 is hinged to the handle 210, the other end of the transmission rod 220 is hinged to one end of the movable frame 230, and the transmission rod 220 is disposed close to the hinge column 110.
[0017] Reference Figures 1 to 5 The movable frame 230 is hinged to the base 100 to form a first-level lever. Then, one end of the handle 210 is hinged to the hinge post 110 on the base 100 and to the movable frame 230 via the transmission rod 220 to form a second-level lever. The first-level lever and the second-level lever are linked, and the second-level lever drives the first-level lever. The double lever enables manual handling of objects. The end of the movable frame 230 away from the transmission rod 220 is set as the support end. Rotating the handle 210 downwards drives the movable frame 230 to rotate via the transmission rod 220, causing the support end of the movable frame 230 to rise. This allows for the movement of heavier objects with less force, saving effort. The structure is simple, improves transmission efficiency, enables quick lifting of objects, saves operation time, has low noise, protects the operator's hearing health, and is zero-emission, energy-saving and environmentally friendly.
[0018] Understandably, referring to Figure 1 and Figure 2 The base 100 is provided with a bracket 130 and a support rod 140, the bracket 130 is connected to the support rod 140, and the bracket 130 is provided with a handle 131. The handle 131 on the bracket 130 makes it easy to drive the base 100 to move by holding the handle 131, making the operation simple and flexible.
[0019] Understandably, referring to Figure 1 and Figure 2The base 100 is vertically provided with a support rod 140, and the support rod 140 is provided with at least two supporting rods 141, and multiple supporting rods 141 are arranged sequentially in the vertical direction. Pull up lever 210 to rotate it upwards, and drive the support end of movable frame 230 to descend via transmission rod 220. Then, place lever 210 on the upper support rod 141 to stabilize it, freeing the operator's hands to push the manual forklift used to move the sound reflector 300. This allows base 100 to smoothly extend under the sound reflector 300. Then, rotate lever 210 downwards to rotate movable frame 230, raising the sound reflector 300. Place lever 210 on the lower support rod 141 to prevent it from rotating upwards, keeping it stable. The support end of movable frame 230 stably lifts the sound reflector 300, freeing the operator's hands to drive the manual forklift used to move the sound reflector 300, thus realizing the movement of the sound reflector 300.
[0020] Additionally, it is understandable that, referring to Figure 1 and Figure 2 The support rod 140 is connected to the bracket 130, which enhances the structural strength of the support rod 140 and thus improves the load-bearing capacity of the support rod.
[0021] Understandably, referring to Figure 1 and Figure 2 The transmission rod 220 includes a connector 221. Threaded holes are respectively opened at both ends of the connector 221 along the axial direction. Adjusting rods 222 are respectively provided at both ends of the connector 221. The two adjusting rods 222 are threadedly connected to the threaded holes at both ends, and are hinged to the handle 210 and the movable frame 230, respectively. By rotating the adjusting rods 222, the adjusting rods 222 extend or retract from the connector 221, thereby changing the overall length of the transmission rod 220, adjusting the travel of the supporting end of the movable frame 230, and limiting the lifting height of the supporting end to prevent excessive lifting height from causing instability and tipping.
[0022] Understandably, referring to Figure 1 and Figure 2 The hinge post 110 is equipped with a connecting rod 111, the upper end of which is hinged to the end of the handle 210. By setting the connecting rod 111 on the hinge post 110, the handle 210 is hinged to the connecting rod 111, and then the connecting rod 111 is installed on the hinge post 110, which facilitates quick docking between the connecting rod 111 and the hinge post 110 and improves assembly efficiency.
[0023] Understandably, the caster assembly 120 includes a first connecting plate 122, a second connecting plate 123, and multiple casters 121. The first connecting plate 122 has a vertically mounted pivot 124, which is rotatably connected to the second connecting plate 123. The casters are also rotatably connected to the second connecting plate 123. The first connecting plate 122 is connected to the bottom side of the base 100, and the second connecting plate 123 is connected to the first connecting plate 122 via the pivot 124, enabling the second connecting plate 123 to rotate. This allows the base 100 to move in any direction, facilitating directional control and improving handling efficiency.
[0024] Understandably, referring to Figure 1 and Figure 2 The second connecting plate 123 is polygonal in shape, and the pivot 124 is located at the center of the second connecting plate 123. Multiple rollers are symmetrically distributed on the bottom side of the second connecting plate 123, so that the second connecting plate 123 is balanced by force and the stability of the caster assembly 120 is improved.
[0025] Understandably, referring to Figure 1 and Figure 2 A support plate 231 is provided at the end of the movable frame 230 away from the hinge column 110, and the support plate 231 is located on the lower side of the base 100. The support plate 231 extends outward and protrudes from the base 100, increasing the contact area between the movable frame 230 and the acoustic shield 300 and improving lifting stability.
[0026] Reference Figure 3 and Figure 5 The working process of this utility model is as follows: Pull up the lever 210, causing it to rotate upwards, and drive the support end of the movable frame 230 downwards via the transmission rod 220. Then, by placing the lever 210 on the upper side of the upper support rod 141, the upper support rod 141 lifts the lever 210, keeping it stable. Then, push the manual forklift used to move the acoustic shield, allowing the base 100 to smoothly extend into the gap under the acoustic shield 300. Then, drive the lever 210 downwards. The movable frame 230 rotates, and the supporting end of the movable frame 230 rises, lifting the sound reflector 300. Then, the lever 210 is placed under the lower support rod 141. The lower support rod 141 prevents the lever 210 from rotating upward, keeping the lever 210 stable. The supporting end of the movable frame 230 stably lifts the sound reflector 300. Then, the manual forklift used to move the sound reflector 300 is driven by the caster assembly 120, realizing the movement of the sound reflector 300. This is convenient, environmentally friendly, cost-effective, and quick and labor-saving.
[0027] In summary, this utility model embodiment provides a manual forklift for transporting soundproof covers. The movable frame 230 is hinged to the base 100 to form a first-stage lever. Then, one end of the handle 210 is hinged to the hinge post 110 on the base 100 and is hinged to the movable frame 230 through the transmission rod 220 to form a second-stage lever. The first-stage lever and the second-stage lever are linked, and the second-stage lever drives the first-stage lever. The double levers enable manual handling of objects. The end of the movable frame 230 away from the transmission rod 220 is set as the support end. Rotating the handle 210 downwards drives the movable frame 230 to rotate through the transmission rod 220, causing the support end of the movable frame 230 to rise. This allows for the movement of heavier objects with less force, saving effort. The structure is simple, improves transmission efficiency, enables quick lifting of objects, saves operation time, has low noise, protects the operator's hearing health, and is zero-emission, energy-saving and environmentally friendly.
[0028] The above are merely preferred embodiments of this utility model. It should be noted that for ordinary counters in this technical field, several improvements and substitutions can be made without departing from the counting principle of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.
Claims
1. A manual forklift for transporting soundproof covers, characterized in that, Including: The base is provided with a hinge column and a caster assembly, wherein multiple sets of the caster assembly are provided; The lifting assembly includes a hand lever, a transmission rod, and a movable frame. The hand lever is positioned above the movable frame, with one end of the hand lever hinged to a hinge post. The movable frame is hinged to the base. One end of the transmission rod is hinged to the hand lever, and the other end of the transmission rod is hinged to one end of the movable frame. The transmission rod is positioned close to the hinge post.
2. The manual forklift for transporting the acoustic shield according to claim 1, characterized in that, The base is provided with a bracket and a support rod, the bracket is connected to the support rod, and the bracket is provided with a handle.
3. The manual forklift for transporting the acoustic shield according to claim 2, characterized in that, The base is vertically provided with a support rod, and the support rod is provided with at least two supporting rods, and multiple supporting rods are arranged sequentially along the vertical direction.
4. The manual forklift for transporting the acoustic shield according to claim 1, characterized in that, The transmission rod includes a connector, and adjusting rods are threaded to both ends of the connector. The two adjusting rods are respectively hinged to the hand lever and the movable frame.
5. The manual forklift for transporting the acoustic shield according to claim 1, characterized in that, The hinged column is provided with a connecting rod, the upper end of which is hinged to the end of the handle.
6. The manual forklift for transporting the acoustic shield according to claim 1, characterized in that, The caster assembly includes a first connecting plate, a second connecting plate, and a plurality of rollers. The first connecting plate is vertically provided with a pivot, which is rotatably connected to the second connecting plate. The rollers are rotatably connected to the second connecting plate.
7. The manual forklift for transporting the acoustic shield according to claim 6, characterized in that, The second connecting plate is polygonal in shape, the pivot is located at the center of the second connecting plate, and a plurality of rollers are symmetrically distributed on the bottom side of the second connecting plate.
8. The manual forklift for transporting the acoustic shield according to claim 1, characterized in that, A support plate is provided at one end of the movable frame away from the hinge post. The support plate protrudes from the base and is located on the lower side of the base.