Cart for sound reflecting cover

Abstract

The invention discloses a cart for a sound reflecting cover, and belongs to the technical field of carts. A cart for a sound reflecting cover comprises a driving wheel set, a cart frame and a lifting driving assembly. The frame mounting frame is erected on the driving wheel set and moves through the driving wheel set; the output end of the lifting driving assembly is connected with the input end of the frame so as to adjust the height of the frame; the driving wheel set comprises a front driving wheel set and a rear driving wheel set; a pull rod assembly is installed between the front driving wheel set and the rear driving wheel set, the front driving wheel set and the rear driving wheel set are connected through the pull rod assembly and conduct power transmission, the rear driving wheel set is a power wheel set, and the front driving wheel set is a driven wheel set. Through the arrangement, the sound reflecting cover can be easily carried.

Description

Technical Field

[0001] The invention belongs to the technical field of carts, and more specifically, relates to a cart for a sound-reflecting hood. Background Art

[0002] At present, the Wenger-like anti-sound shield used in the theater is large in size and has a thick anti-sound shield plate, so it has a large gravity and a high center of gravity. It is laborious to carry it manually, and it can only be carried by a cart. However, ordinary carts will have safety hazards in transportation due to the high center of gravity of the anti-sound shield plate. Moreover, most of the current transportation carts use external power or hydraulic cylinders, which have certain limitations in transportation and are complicated to operate. As a device for improving the acoustic conditions of performing arts venues, the acoustic shield can be divided into fixed and mobile types according to the nature of the venue. When using the mobile type, it is installed during use, and after use, the disassembled acoustic shield needs to be moved to a storage location. Due to the high center of the acoustic shield plate, a trolley for the acoustic shield is specially developed. The acoustic shield trolley is pushed manually, and under the action of the driving wheel assembly, the acoustic shield can be moved labor-savingly. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a cart for a sound-reflecting hood, which can realize easy transportation of the sound-reflecting hood.

[0004] The present invention discloses a cart for an acoustic shield, which is used for transporting the acoustic shield, and comprises a driving wheel set, a frame and a lifting drive assembly; the frame is mounted on the driving wheel set and moves by the driving wheel set; the output end of the lifting drive assembly is installed and connected with the input end of the frame to adjust the height of the frame; The driving wheel set includes a front driving wheel set and a rear driving wheel set; a tie rod assembly is installed between the front driving wheel set and the rear driving wheel set, and the front driving wheel set and the rear driving wheel set are connected and power is transmitted through the tie rod assembly. The rear driving wheel set is the power wheel set, and the front driving wheel set is the driven wheel set.

[0005] As a further improvement of the present invention, the lifting drive assembly includes a handle, a screw rod and a linkage assembly; the handle is installed on the top of the screw rod; the lower end of the screw rod is threadedly connected to the end of one end of the linkage assembly, and the end of the linkage assembly away from the screw rod is installed and connected to the frame; the linkage assembly is driven by the handle to rotate the screw rod, thereby driving the frame to rise or fall.

[0006] As a further improvement of the present invention, the linkage assembly includes an adapter, a connecting piece, a first linkage rod and a second linkage rod; the lower end portion of the screw rod passes through the adapter and is threadedly connected to the adapter; the first linkage rod and the rear drive wheel group are on the same side; the second linkage rod and the front drive wheel group are on the same side; one end of the first linkage rod is rotatably connected to the adapter, and an end of the first linkage rod away from the adapter is rotatably connected to one end of the pull rod assembly; an end of the pull rod assembly away from the first linkage rod is rotatably connected to one end of the second linkage rod, and an end of the second linkage rod away from the pull rod assembly is rotatably connected to the frame.

[0007] As a further improvement of the present invention, the first linkage rod is provided with a bending portion, which is arranged in a bending manner; the bending portion of the first linkage rod is rotatably connected to the vehicle frame.

[0008] As a further improvement of the present invention, a positioning device is provided on the frame; two groups of positioning devices are provided, which are respectively installed at the front and rear ends of the frame; and the positioning device is consistent with the support frame provided on the anti-sound cover.

[0009] As a further improvement of the present invention, the rear drive wheel group includes a left rear drive wheel group and a right rear drive wheel group; a connecting shaft is installed between the left rear drive wheel group and the right rear drive wheel group to install the left rear drive wheel group and the right rear drive wheel group in linkage; a synchronization rod can also be removably provided between the left rear drive wheel group and the right rear drive wheel group, one end of the synchronization rod is rotationally connected to the left rear drive wheel group, and the end of the synchronization rod away from the left rear drive wheel group is rotationally connected to the right rear drive wheel group.

[0010] As a further improvement of the present invention, both the left rear drive wheel group and the right rear drive wheel group are installed with auxiliary braking devices; the auxiliary braking device includes a transmission assembly, a brake assembly and a brake assembly; the brake assembly is installed on the rear drive wheel group to control the stopping of the wheel set of the corresponding rear drive wheel group; the output end of the brake assembly is installed and connected with the input end of the brake assembly to control the opening and closing of the brake assembly; the brake assembly is installed and connected with the corresponding rear drive wheel group through the transmission assembly, and the operation of the rear drive wheel group drives the operation of the transmission assembly.

[0011] As a further improvement of the present invention, the transmission assembly includes a connecting rod, a belt, a first rotating wheel and a second rotating wheel; one end of the connecting rod is fixedly connected to the wheel set of the rear drive wheel group; the first rotating wheel is fixedly sleeved on the end of the first rotating wheel away from the wheel; the second rotating wheel and the first rotating wheel are connected by a belt drive.

[0012] As a further improvement of the present invention, the brake assembly includes a connecting disk, a connecting seat, a plurality of connecting columns, a first rotating shaft and a second rotating shaft; one end of the second rotating shaft passes through the connecting seat and is rotatably connected to the connecting seat; one end of the connecting column passes through the connecting seat and is fixedly connected to the connecting seat; the connecting columns are arranged at intervals around the connecting seat; the end of the connecting column away from the connecting seat passes through the connecting disk and is slidably connected to the connecting disk; one end of the first rotating shaft passes through the connecting disk and is fixedly connected to the connecting disk; a fixed wheel is provided on the outer peripheral fixed sleeve of the end of the first rotating shaft away from the connecting disk; a connecting wheel is rotatably provided on the first rotating shaft between the fixed wheel and the connecting disk, and a mounting column is rotatably provided on the top of the connecting wheel, and the top of the mounting column away from the connecting wheel is rotatably connected to the frame; the brake assembly is provided with a brake line, and the end of the brake line away from the brake assembly is fixedly connected to the fixed wheel; The second rotating wheel is fixedly sleeved on the end of the second rotating shaft away from the connecting seat to link the rear driving wheel set and the brake assembly.

[0013] As a further improvement of the present invention, a clamping sleeve is fixedly provided at the end of one end of the second rotating shaft that passes through the connecting seat; a clamping column is fixedly provided on the side of the connecting disk away from the first rotating shaft; the clamping column and the clamping sleeve are arranged oppositely, and the clamping column and the clamping sleeve are arranged concentrically and coaxially; when the connecting disk and the connecting seat move toward each other, the clamping column and the clamping sleeve move toward each other synchronously until the clamping column is embedded in the clamping sleeve; There are more than one arc-shaped grooves at the bottom of the clamping sleeve, and an arc-shaped clamping ring corresponding to the groove is arranged on the clamping column; the width of the clamping ring is smaller than the width of the groove, and the clamping ring can be embedded in the groove; when the clamping column is embedded in the clamping sleeve, the clamping column and the clamping sleeve move towards each other, and during the rotation of the connecting seat, the clamping ring is embedded in the corresponding groove, so that the connecting disk and the connecting seat are relatively fixed, and the connecting disk rotates with the rotation of the connecting seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the solution of the present invention can realize the lifting or lowering of the anti-sound cover, effectively preventing the anti-sound cover from tipping over due to being too high during transportation; a locking structure of the anti-sound cover is designed, and the cart is locked when the four positioning points of the anti-sound cover cart coincide with the points corresponding to the anti-sound cover, effectively preventing the cart from tipping over due to being not fixed during transportation; (1) Easy to operate: The rocker arm can lift a 1.5t anti-noise hood with a force of 3kg; (2) Safe and reliable: The self-locking structure of the screw nut greatly improves the safety and reliability of the system. There is no danger of hydraulic oil leakage and overturning, and the start-stop impact of the electric push rod fixed speed start is avoided. (3) Easy steering: Compared with the original triangular universal wheel structure, the directional wheel is easier to push, and can achieve easy steering and easy start and stop; (4) By releasing the front linkage rod, two-person (large-angle steering) operation can be achieved, enabling rapid deployment in narrow spaces; The solution of the present invention is also provided with an auxiliary braking device, which utilizes the rotation of the roller provided on the rear driving wheel group to tighten the brake line, thereby achieving the braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the lowest structural position of the side view of the present invention; Figure 2 It is a schematic diagram of the highest structural position of the side view of the present invention; Figure 3 It is a schematic diagram of the top view structure of the present invention; Figure 4 It is a schematic diagram of the structure of the rear drive wheel set of the present invention; Figure 5 It is a schematic diagram of the structure of the auxiliary braking device of the present invention.

[0016] Description of the numbers in the figure: 1. Front drive wheel set; 2. Tie rod assembly; 3. Vehicle frame; 4. Copy support; 5. Locking device; 6. Rear drive wheel set; 7. Lifting drive assembly; 71. First linkage rod; 72. Second linkage rod; 10. Auxiliary braking device; 101. Connecting rod; 102. Connecting plate; 103. Connecting seat; 104. Connecting column; 105. First rotating shaft; 106. Second rotating shaft; 107. Clamping column; 108. Clamping sleeve; 109. Belt; 1010. Fixed wheel; 1011. Connecting wheel; 1012. Mounting column; 1013. First rotating wheel; 1014. Second rotating wheel; 11. Anti-sound cover. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with embodiments. The following embodiments are for explanation of the present invention but the present invention is not limited to the following embodiments.

[0018] Specific embodiment 1: Please refer to Figure 1-5 A cart for an anti-sound cover is used to transport an anti-sound cover 11, comprising a driving wheel set, a frame and a lifting drive assembly 7; the frame is mounted on the driving wheel set and moves through the driving wheel set; the output end of the lifting drive assembly 7 is installed and connected to the input end of the frame to adjust the height of the frame.

[0019] The driving wheel set includes a front driving wheel set 1 and a rear driving wheel set 6; a tie rod assembly 2 is installed between the front driving wheel set 1 and the rear driving wheel set 6, and the front driving wheel set 1 and the rear driving wheel set 6 are connected and power is transmitted through the tie rod assembly 2, the rear driving wheel set 6 is the power wheel set, and the front driving wheel set 1 is the driven wheel set.

[0020] The lifting drive assembly 7 is fixedly mounted on the vehicle frame 3 and is rotationally connected to the rear drive wheel set 6 . The lifting drive assembly 7 is used to control the raising or lowering of the vehicle frame 3 .

[0021] The lifting drive assembly 7 includes a handle, a screw rod and a linkage assembly; the handle is installed on the top of the screw rod; the lower end of the screw rod is threadedly connected to the end of one end of the linkage assembly, and the end of the linkage assembly away from the screw rod is installed and connected to the frame; the linkage assembly is driven by the handle to rotate the screw rod, thereby driving the frame to rise or fall.

[0022] The linkage assembly includes an adapter, a connecting member, a first linkage rod 71 and a second linkage rod 72; the lower end of the screw rod passes through the adapter and is threadedly connected to the adapter; the first linkage rod 71 is on the same side as the rear drive wheel set 6; the second linkage rod 72 is on the same side as the front drive wheel set 1; one end of the first linkage rod 71 is rotatably connected to the adapter, and the end of the first linkage rod 71 away from the adapter is rotatably connected to one end of the tie rod assembly 2; the end of the tie rod assembly 2 away from the first linkage rod 71 is rotatably connected to one end of the second linkage rod 72, and the end of the second linkage rod 72 away from the tie rod assembly 2 is rotatably connected to the frame; Preferably, the first linkage rod 71 is provided with a bending portion, which is arranged in a bending manner; the bending portion of the first linkage rod 71 is rotatably connected to the vehicle frame 3 .

[0023] Optionally, a positioning device is provided on the frame 3; two groups of positioning devices are provided, which are respectively installed at the front and rear ends of the frame 3; the positioning device is consistent with the support frame provided on the anti-sound cover 11 to assist in installing the anti-sound cover 11 on the frame 3.

[0024] Optionally, an auxiliary support and a locking device 5 are installed on the frame 3, the auxiliary support is used to auxiliary support the anti-sound shield 11; the locking device 5 is used to lock the anti-sound shield 11 on the frame 3; during transportation, the anti-sound shield can be prevented from tipping over due to reasons such as being too large or too heavy.

[0025] The rear drive wheel set 6 includes a left rear drive wheel set and a right rear drive wheel set; a connecting shaft is installed between the left rear drive wheel set and the right rear drive wheel set to install the left rear drive wheel set and the right rear drive wheel set in linkage; a synchronization rod can also be removably arranged between the left rear drive wheel set and the right rear drive wheel set, one end of the synchronization rod is rotationally connected to the left rear drive wheel set, and the end of the synchronization rod away from the left rear drive wheel set is rotationally connected to the right rear drive wheel set.

[0026] Specific embodiment 2: Different from specific embodiment 1, the left rear drive wheel group and the right rear drive wheel group are both installed with auxiliary braking devices 10; the auxiliary braking device 10 includes a transmission assembly, a brake assembly and a brake assembly; the brake assembly is installed on the rear drive wheel group 6 to control the stopping of the wheel set of the corresponding rear drive wheel group; the output end of the brake assembly is installed and connected with the input end of the brake assembly to control the opening and closing of the brake assembly; the brake assembly is installed and connected with the corresponding rear drive wheel group through the transmission assembly, and the operation of the rear drive wheel group 6 drives the operation of the transmission assembly.

[0027] The transmission assembly includes a connecting rod 101, a belt 109, a first rotating wheel 1013 and a second rotating wheel 1014; one end of the connecting rod is fixedly connected to the wheel set of the rear driving wheel group 6; the first rotating wheel 1013 is fixedly sleeved on the end of the first rotating wheel 1013 away from the wheel; the second rotating wheel 1014 and the first rotating wheel 1013 are connected by the belt 109.

[0028] The brake assembly includes a connecting disk 102, a connecting seat 103, a plurality of connecting posts 104, a first rotating shaft 105 and a second rotating shaft 106; one end of the second rotating shaft 106 passes through the connecting seat 103 and is rotatably connected to the connecting seat 103; one end of the connecting post 104 passes through the connecting seat 103 and is fixedly connected to the connecting seat 103; the connecting posts 104 are arranged at intervals around the connecting seat 103; one end of the connecting post 104 away from the connecting seat 103 passes through the connecting disk 102 and is slidably connected to the connecting disk 102; one end of the first rotating shaft 105 passes through the connecting disk 102, fixedly connected to the connecting disk 102; a fixed wheel 1010 is fixedly sleeved on the outer periphery of the end of the first rotating shaft 105 away from the connecting disk 102; a connecting wheel 1011 is rotatably sleeved on the first rotating shaft 105 between the fixed wheel 1010 and the connecting disk 102, and a mounting column 1012 is rotatably provided on the top of the connecting wheel 1011, and the top of the mounting column 1012 away from the end of the connecting wheel 1011 is rotatably connected to the frame 3; a brake assembly is provided with a brake line, and the end of the brake line away from the brake assembly is fixedly connected to the fixed wheel 1010.

[0029] The second rotating wheel 1014 is fixedly sleeved on the end of the second rotating shaft 106 away from the connecting seat 103 to link the rear driving wheel set 6 and the brake assembly.

[0030] A clamping sleeve 108 is fixedly provided at the end of one end of the second rotating shaft 106 that passes through the connecting seat 103; a clamping column 107 is fixedly provided on the side of the connecting disk 102 away from the first rotating shaft 105; the clamping column 107 and the clamping sleeve 108 are arranged opposite to each other, and the clamping column 107 and the clamping sleeve 108 are arranged concentrically and coaxially; when the connecting disk 102 and the connecting seat 103 move towards each other, the clamping column 107 and the clamping sleeve 108 move towards each other synchronously until the clamping column 107 is embedded in the clamping sleeve 108.

[0031] Preferably, at least one arc-shaped groove is provided at the bottom of the clamping sleeve 108, and an arc-shaped clamping ring corresponding to the groove is provided on the clamping column 107; the width of the clamping ring is smaller than the width of the groove, and the clamping ring can be embedded in the groove; when the clamping column 107 is embedded in the clamping sleeve 108, the clamping column 107 and the clamping sleeve 108 move towards each other, and during the rotation of the connecting seat 103, the clamping ring is embedded in the corresponding groove, so that the connecting disk 102 and the connecting seat 103 are relatively fixed, and the connecting disk 102 rotates with the rotation of the connecting seat 103.

[0032] The brake components include common cantilever brakes, hanging brakes, etc., which will not be described in detail here.

[0033] The above is only a preferred specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed in the present application according to the technical solution and improved ideas of the present application, which should be covered by the protection scope of the present application.

Claims

1. A cart for an acoustic shield, used for transporting an acoustic shield (11), characterized in that: The vehicle comprises a driving wheel set, a frame and a lifting drive assembly (7); the frame is mounted on the driving wheel set and moves through the driving wheel set; the output end of the lifting drive assembly (7) is mounted and connected to the input end of the frame to adjust the height of the frame; The driving wheel set comprises a front driving wheel set (1) and a rear driving wheel set (6); a tie rod assembly (2) is installed between the front driving wheel set (1) and the rear driving wheel set (6); the front driving wheel set (1) and the rear driving wheel set (6) are connected via the tie rod assembly (2) and power is transmitted; the rear driving wheel set (6) is a driving wheel set, and the front driving wheel set (1) is a driven wheel set.

2. A cart for a sound-reflecting enclosure according to claim 1, characterized in that: The lifting drive assembly (7) comprises a handle, a screw rod and a linkage assembly; the handle is mounted on the top of the screw rod; the lower end of the screw rod is threadedly connected to the end of one end of the linkage assembly, and the end of the linkage assembly away from the screw rod is mounted and connected to the frame; the linkage assembly is driven by the handle to rotate the screw rod, thereby driving the frame to rise or fall.

3. A cart for a sound-reflecting enclosure according to claim 2, characterized in that: The linkage assembly comprises an adapter, a connecting member, a first linkage rod (71) and a second linkage rod (72); the lower end of the screw rod passes through the adapter and is threadedly connected to the adapter; the first linkage rod (71) and the rear drive wheel set (6) are on the same side; the second linkage rod (72) and the front drive wheel set (1) are on the same side; one end of the first linkage rod (71) is rotatably connected to the adapter, and one end of the first linkage rod (71) away from the adapter is rotatably connected to one end of the pull rod assembly (2); one end of the pull rod assembly (2) away from the first linkage rod (71) is rotatably connected to one end of the second linkage rod (72), and one end of the second linkage rod (72) away from the pull rod assembly (2) is rotatably connected to the vehicle frame.

4. A cart for a sound-reflecting enclosure according to claim 3, characterized in that: The first linkage rod (71) is provided with a bent portion, which is arranged in a bent manner; the bent portion of the first linkage rod (71) is rotationally connected to the vehicle frame (3).

5. The cart for the acoustic shield according to claim 1, characterized in that: The vehicle frame (3) is provided with a positioning device; two groups of the positioning devices are provided and are respectively installed at the front and rear ends of the vehicle frame (3); the positioning devices are matched with a support frame provided on the anti-sound cover (11).

6. The cart for the acoustic shield according to claim 1, characterized in that: The rear drive wheel set (6) comprises a left rear drive wheel set and a right rear drive wheel set; a connecting shaft is installed between the left rear drive wheel set and the right rear drive wheel set to link the left rear drive wheel set and the right rear drive wheel set; a synchronization rod is detachably provided between the left rear drive wheel set and the right rear drive wheel set, one end of the synchronization rod is rotationally connected to the left rear drive wheel set, and the end of the synchronization rod away from the left rear drive wheel set is rotationally connected to the right rear drive wheel set.

7. A cart for a sound-reflecting enclosure according to claim 6, characterized in that: The left rear drive wheel assembly and the right rear drive wheel assembly are both installed with auxiliary braking devices (10); the auxiliary braking devices (10) include a transmission assembly, a brake assembly and a brake assembly; the brake assembly is installed on the rear drive wheel assembly (6) to control the stopping of the wheel provided on the corresponding rear drive wheel assembly; the output end of the brake assembly is installed and connected to the input end of the brake assembly to control the opening and closing of the brake assembly; the brake assembly is installed and connected to the corresponding rear drive wheel assembly through the transmission assembly, and the operation of the rear drive wheel assembly (6) drives the operation of the transmission assembly.

8. The cart for the acoustic shield according to claim 7, characterized in that: The transmission assembly comprises a connecting rod (101), a belt (109), a first rotating wheel (1013) and a second rotating wheel (1014); one end of the connecting rod is fixedly connected to a wheel provided on a rear drive wheel assembly (6); the first rotating wheel (1013) is fixedly sleeved on an end of the first rotating wheel (1013) away from the wheel; and the second rotating wheel (1014) and the first rotating wheel (1013) are connected to each other via a belt (109).

9. A cart for a sound-reflecting enclosure according to claim 8, characterized in that: The brake assembly comprises a connecting disk (102), a connecting seat (103), a plurality of connecting posts (104), a first rotating shaft (105) and a second rotating shaft (106); one end of the second rotating shaft (106) passes through the connecting seat (103) and is rotatably connected to the connecting seat (103); one end of the connecting post (104) passes through the connecting seat (103) and is fixedly connected to the connecting seat (103); the connecting posts (104) are arranged at intervals around the connecting seat (103); one end of the connecting post (104) away from the connecting seat (103) passes through the connecting disk (102) and is slidably connected to the connecting disk (102); one end of the first rotating shaft (105) passes through A connecting disk (102) is fixedly connected to the connecting disk (102); a fixed wheel (1010) is fixedly sleeved on the outer periphery of an end of the first rotating shaft (105) away from the connecting disk (102); a connecting wheel (1011) is rotatably sleeved on the first rotating shaft (105) between the fixed wheel (1010) and the connecting disk (102); a mounting post (1012) is rotatably provided on the top of the connecting wheel (1011); the top of the mounting post (1012) away from the connecting wheel (1011) is rotatably connected to the vehicle frame (3); a brake assembly is provided with a brake line, and the end of the brake line away from the brake assembly is fixedly connected to the fixed wheel (1010); The second rotating wheel (1014) is fixedly sleeved on an end portion of the second rotating shaft (106) away from the connecting seat (103) to link the rear driving wheel set (6) and the brake assembly.

10. A cart for a sound-reflecting enclosure according to claim 9, characterized in that: A clamping sleeve (108) is fixedly provided at the end of one end of the second rotating shaft (106) that passes through the connecting seat (103); a clamping column (107) is fixedly provided on the side of the connecting disk (102) away from the first rotating shaft (105); the clamping column (107) and the clamping sleeve (108) are arranged opposite to each other, and the clamping column (107) and the clamping sleeve (108) are arranged concentrically and coaxially; when the connecting disk (102) and the connecting seat (103) move toward each other, the clamping column (107) and the clamping sleeve (108) move toward each other synchronously, until the clamping column (107) is embedded in the clamping sleeve (108); The bottom of the clamping sleeve (108) is provided with more than one arc-shaped groove, and the clamping column (107) is provided with an arc-shaped clamping ring corresponding to the groove; the width of the clamping ring is smaller than the width of the groove, and the clamping ring can be embedded in the groove; when the clamping column (107) is embedded in the clamping sleeve (108), the clamping column (107) and the clamping sleeve (108) move towards each other, and during the rotation of the connecting seat (103), the clamping ring is embedded in the corresponding groove, so that the connecting disk (102) and the connecting seat (103) are relatively fixed, and the connecting disk (102) rotates following the rotation of the connecting seat (103).

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