Impact resistant weighing device

Abstract

The application discloses an impact-resistant weighing device and relates to the technical field of tire blank weighing. The device comprises a rack assembly, which comprises a meander-shaped rack. Two symmetrically distributed middle rods are fixedly installed at the inner end of the meander-shaped rack. A plurality of uniformly distributed middle holes are formed in the upper end surface of each middle rod. A vertical column is fixedly installed at each corner of the meander-shaped rack. A bottom fastening assembly is fixedly installed at the lower end of each vertical column. A foot switch is arranged on the left side of the right bottom fastening assembly. An alignment hole is formed in the upper end of each vertical column. A tire blank supporting and limiting mechanism is arranged on the upper end of the plurality of vertical columns. The tire blank supporting and limiting mechanism comprises a tire blank placing panel, and a tire blank body is arranged at the middle of the upper end of the tire blank placing panel. The impact load of the tire blank body is separated from the electronic platform scale assembly through the design of the tire blank supporting and limiting mechanism. The weighing function is separated from the impact load of the tire blank body. The electronic platform scale assembly is prevented from being subjected to a great impact force when the tire blank body is placed. The electronic platform scale assembly only bears the weighing task, and the service life of the electronic platform scale assembly is prolonged.

Description

Technical Field

[0001] This invention relates to the field of embryo weighing technology, specifically an impact-resistant weighing device. Background Technology

[0002] In the existing technology, solid tire blanks are weighed by directly weighing them using a conventional electronic platform scale. The operator places the solid tire blank, which weighs hundreds of kilograms, directly on the scale surface of the electronic platform scale to complete the weighing operation. The electronic platform scale directly serves as the load-bearing and weighing component of the tire blank, without any buffer or shock-proof intermediate transition structure. The weight of the tire blank and the impact force during placement directly act on the core sensing component of the electronic platform scale.

[0003] However, when the weight of the tire and the impact force during tire placement directly act on the core sensing components of the electronic platform scale, the sensing elements are easily deformed and damaged, leading to frequent malfunctions of the electronic platform scale, a significant decrease in weighing accuracy, and deviations in weighing accuracy caused by impact. This results in inaccurate tire weight detection data, affecting the setting of subsequent production process parameters, and potentially impacting the quality of the solid tire product. Therefore, we propose an impact-resistant weighing device. Summary of the Invention

[0004] The purpose of this invention is to provide an impact-resistant weighing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an impact-resistant weighing device, comprising a frame assembly, the frame assembly including a U-shaped frame, two symmetrically distributed intermediate rods fixedly installed at the inner end of the U-shaped frame, each intermediate rod having multiple evenly distributed intermediate holes on its upper surface, columns fixedly installed at each corner of the U-shaped frame, a bottom fastening assembly fixedly installed at the lower end of each column, a foot switch provided on the left side of the bottom fastening assembly on the right side, an alignment hole provided at the upper end of each column, and a tire blank support and limiting mechanism provided at the upper end of the plurality of columns. The supporting and limiting mechanism includes a tire carcass placement panel, with a tire carcass body disposed at the upper center of the tire carcass placement panel. A tire carcass lifting mechanism is detachably mounted on the upper ends of the two intermediate rods. An electronic scale assembly is disposed at the upper end of the tire carcass lifting mechanism. The bottom fastening assembly securely mounts the entire device to the ground. The tire carcass supporting and limiting mechanism centers and limits tire carcass bodies of different outer diameters. The tire carcass lifting mechanism, together with the tire carcass supporting and limiting mechanism, the electronic scale assembly, and the tire carcass body, provides a lifting function. The electronic scale assembly weighs the tire carcass body.

[0006] Preferably, each corner of the lower end of the tire carcass placement panel is fixedly equipped with a guide pin body, and each guide pin body is inserted into an alignment hole. A guide pin guard plate is provided on the outer side of each corner of the lower end of the tire carcass placement panel. Sliding grooves are provided on both sides of the upper end of the tire carcass placement panel. A follower shaft is rotatably connected to the middle of the lower end of the tire carcass placement panel via a bearing. A central gear is fixedly installed at the lower end of the follower shaft. A torsion spring is fixedly installed at the upper end of the central gear, and the upper end of the torsion spring is fixedly installed at the lower end of the tire carcass placement panel. The torsion spring is sleeved on the outer side of the follower shaft. Two centrally symmetrically arranged racks are meshed on the front and rear sides of the central gear. A moving rod is fixedly installed on the outer side of the upper end of each rack. A bottom limiting plate is fixedly installed at the upper end of each moving rod. A slider is fixedly installed at the upper end of the bottom limiting plate. A top limiting plate is fixedly installed at the upper end of the slider. A tire carcass limiting arc plate is fixedly installed at the upper end of the top limiting plate. The tire carcass body is disposed between the two tire carcass limiting arc plates.

[0007] Preferably, the tire lifting mechanism includes an intermediate plate. The surface of the intermediate plate is detachably connected to the upper ends of two intermediate rods by multiple locking bolts. A cylinder is fixedly installed at the lower center of the intermediate plate. A platform scale support assembly is detachably installed at the end of the cylinder's telescopic rod. The platform scale support assembly includes a platform scale support body. The upper end of the platform scale support body has multiple sets of symmetrically distributed locking holes. The lower end of the platform scale support body is detachably installed with multiple sets of symmetrically distributed guide rod connecting sleeve assemblies. The guide rod connecting sleeve assembly includes a guide rod connecting sleeve body. The surface of the guide rod connecting sleeve body has a second through hole. The lower end of the intermediate plate is detachably installed with multiple sets of symmetrically distributed guide rod guide sleeve assemblies. The guide rod guide sleeve assembly includes a guide rod guide sleeve body. The surface of the guide rod guide sleeve body has a first through hole. The lower end of the platform scale support body is fixedly installed with multiple symmetrically distributed guide rod bodies. The outer end of the guide rod body is slidably connected to the inner wall of the first and second through holes.

[0008] Preferably, the electronic platform scale assembly includes an electronic platform scale body, a shock-absorbing pad is fixedly installed on the upper end of the electronic platform scale body, a support column is provided at each corner of the lower end of the electronic platform scale body, the lower ends of the multiple support columns are all located on the upper end of the platform scale pallet assembly, and lifting strips are fixedly installed on the front and rear sides of the upper end of the shock-absorbing pad.

[0009] Preferably, the guide pin guard plate includes a first protective part, the upper end of which is fixedly installed on the lower end of the tire blank placement panel, and a second protective part is fixedly installed on the outer end of the first protective part, the upper end of which is fixedly installed on the lower end of the tire blank placement panel, and both the first protective part and the second protective part are disposed on the outer side of the guide pin body.

[0010] Preferably, the upper end of the bottom limiting plate is slidably connected to the lower end of the tire carcass placement panel, and the lower end of the top limiting plate is slidably connected to the upper end of the tire carcass placement panel.

[0011] Preferably, the foot switch includes a foot pedal, which is disposed at the lower part of the U-shaped frame, and a fixing part is provided at the upper end of the foot pedal.

[0012] Preferably, the upper outer side of the guide rod sleeve body is provided with a plurality of first mounting holes distributed in a circle, and the inner wall of the first mounting holes is threaded with a first hexagon socket bolt, which is threaded to the surface of the intermediate plate.

[0013] Preferably, the upper outer side of the guide rod connecting sleeve body is provided with a plurality of second mounting holes distributed in a circle, and the inner wall of the second mounting hole is threaded with a second hexagon socket bolt, the upper section of the second hexagon socket bolt being threaded to the inner wall of the locking hole.

[0014] Preferably, the bottom fastening assembly includes a bottom fastening plate, the upper end of which is fixedly installed on the lower end of the column, and each bottom fastening plate has a plurality of symmetrically distributed bottom mounting holes at its upper end.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention separates the impact bearing and weighing functions of the tire blank body by using a separate design for the tire blank support and limiting mechanism and the electronic platform scale assembly. This allows the electronic platform scale assembly to avoid the huge impact force when the tire blank body is placed and only undertake the weighing task, thereby improving the service life of the electronic platform scale assembly.

[0017] 2. This invention, through the tire lifting mechanism and the electronic platform scale assembly, enables the electronic platform scale assembly to switch between "low-position isolation when not weighing and high-position lifting when weighing" through the tire lifting mechanism, thereby achieving a combination of impact isolation and accurate weighing.

[0018] 3. The present invention improves the stability of the guide rod body during the lifting process through the guide rod and guide sleeve assembly and the guide rod connecting sleeve assembly, thereby further improving the stability and accuracy of the electronic platform scale assembly during the lifting process and avoiding weighing errors and equipment jamming caused by offset. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0021] Figure 3 This is a schematic diagram of the rack assembly structure of the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of the embryo support and limiting mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the slider of the present invention;

[0024] Figure 6 This is a schematic diagram of the embryo lifting mechanism of the present invention;

[0025] Figure 7 This is a schematic diagram of the platform scale pallet assembly structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the guide rod and guide sleeve assembly structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the guide rod connecting sleeve assembly of the present invention;

[0028] Figure 10 This is a schematic diagram of the embryo placement panel structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the electronic platform scale assembly structure of the present invention;

[0030] Figure 12 This is a schematic diagram of the guide pin guard plate structure of the present invention;

[0031] Figure 13 This is a schematic diagram of the foot switch structure of the present invention;

[0032] Figure 14 This is a schematic diagram of the bottom fastening assembly structure of the present invention;

[0033] Figure 15 This is a schematic diagram of the embryo body structure of the present invention.

[0034] In the diagram: 1. Frame assembly; 11. Rectangular frame; 12. Intermediate rod; 13. Intermediate hole; 14. Column; 15. Alignment hole; 2. Bottom fastening assembly; 21. Bottom fastening plate; 22. Bottom mounting hole; 3. Foot switch; 31. Foot pedal; 32. Fixing part; 4. Carcass body; 5. Carcass support and limiting mechanism; 51. Carcass placement panel; 52. Slide groove; 53. Guide pin body; 54. Follower shaft; 55. Center gear; 56. Torsion spring; 57. Rack; 58. Moving rod; 59. Bottom limiting plate; 510. Slider; 511. Top limiting plate; 512. Carcass limiting arc plate; 513. Guide pin guard plate; 5131. First protection 5132. Second Protective Part; 6. Tire Carcass Lifting Mechanism; 61. Intermediate Plate; 62. Cylinder; 63. Guide Rod and Guide Sleeve Assembly; 631. Guide Rod and Guide Sleeve Body; 632. First Through Hole; 633. First Mounting Hole; 64. Platform Scale Support Plate Assembly; 641. Platform Scale Support Plate Body; 642. Locking Hole; 65. Locking Bolt; 66. First Hex Socket Head Bolt; 67. Second Hex Socket Head Bolt; 68. Guide Rod Connecting Sleeve Assembly; 681. Guide Rod Connecting Sleeve Body; 682. Second Through Hole; 683. Second Mounting Hole; 69. Guide Rod Body; 7. Electronic Platform Scale Assembly; 71. Electronic Platform Scale Body; 72. Shock Absorbing Pad; 73. Lifting Strip; 74. Support Column. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1 - Figure 15This invention provides a technical solution: an impact-resistant weighing device, including a frame assembly 1, the frame assembly 1 including a U-shaped frame 11, two symmetrically distributed intermediate rods 12 fixedly installed at the inner end of the U-shaped frame 11, each intermediate rod 12 having multiple evenly distributed intermediate holes 13 on its upper surface, each corner of the U-shaped frame 11 having a column 14 fixedly installed, each column 14 having a bottom fastening component 2 fixedly installed at its lower end, a foot switch 3 provided on the left side of the bottom fastening component 2 on the right side, each column 14 having an alignment hole 15 on its upper end, and a tire support limiting mechanism 5 provided on the upper end of the multiple columns 14, the tire support... The limiting mechanism 5 includes a tire carcass placement panel 51, with a tire carcass body 4 located at the upper center of the tire carcass placement panel 51. A tire carcass lifting mechanism 6 is detachably installed on the upper ends of the two intermediate rods 12. An electronic platform scale assembly 7 is installed on the upper end of the tire carcass lifting mechanism 6. The bottom fastening assembly 2 serves to securely install the entire device to the ground. The tire carcass support and limiting mechanism 5 serves to center and limit the tire carcass body 4 of different outer diameters. The tire carcass lifting mechanism 6, together with the tire carcass support and limiting mechanism 5, the electronic platform scale assembly 7, and the tire carcass body 4, performs a lifting function. The electronic platform scale assembly 7 serves to weigh the tire carcass body 4.

[0037] In this embodiment, guide pin bodies 53 are fixedly installed at each corner of the lower end of the tire blank placement panel 51, and each guide pin body 53 is inserted into an alignment hole 15. Guide pin guard plates 513 are provided on the outer side of each corner of the lower end of the tire blank placement panel 51. Slide grooves 52 are provided on both sides of the upper end of the tire blank placement panel 51. A follower shaft 54 ​​is rotatably connected to the middle of the lower end of the tire blank placement panel 51 through a bearing. A central gear 55 is fixedly installed at the lower end of the follower shaft 54. A torsion spring 56 is fixedly installed at the upper end of the central gear 55, and the upper end of the torsion spring 56 is fixedly installed on the tire blank placement panel 51. At the lower end, a torsion spring 56 is sleeved on the outside of the follower shaft 54. The central gear 55 is meshed with two centrally symmetrical racks 57 on the front and rear sides. A moving rod 58 is fixedly installed on the outer side of the upper end of each rack 57. A bottom limiting plate 59 is fixedly installed on the upper end of each moving rod 58. A slider 510 is fixedly installed on the upper end of the bottom limiting plate 59. A top limiting plate 511 is fixedly installed on the upper end of the slider 510. A tire blank limiting arc plate 512 is fixedly installed on the upper end of the top limiting plate 511. The tire blank body 4 is arranged between the two tire blank limiting arc plates 512.

[0038] Specifically, when placing the tire blank body 4, the tire blank limiting arc plate 512 on one side can be moved outward and pulled. The tire blank limiting arc plate 512 on one side directly drives the top limiting plate 511, slider 510 and bottom limiting plate 59 on the same side to move. At this time, the slider 510 slides on the inner wall of the slide groove 52. At the same time, the bottom limiting plate 59 directly drives the moving rod 58 and the rack 57 to move outward. At this time, the rack 57 directly drives the central gear 55 to rotate clockwise. At this time, the central gear 55 directly drives the follower shaft 54 ​​to rotate clockwise. The torsion spring 56 will generate a torsion effect. Next, the tire blank body 4 is placed between the two tire blank limiting arc plates 512. Then, the tire blank limiting arc plate 512 on one side can be released. At this time, the torsion spring 56 needs to return to its original state. At this time, the two tire blank limiting arc plates 512 move closer to each other. When the inner ends of the two tire blank limiting arc plates 512 are in contact with the outer ends of the tire blank body 4, it is ready.

[0039] In this embodiment, the tire lifting mechanism 6 includes an intermediate plate 61. The surface of the intermediate plate 61 is detachably connected to the upper ends of two intermediate rods 12 by multiple locking bolts 65. A cylinder 62 is fixedly installed at the lower center of the intermediate plate 61. A platform scale assembly 64 is detachably installed at the end of the telescopic rod of the cylinder 62. The platform scale assembly 64 includes a platform scale body 641. The upper end of the platform scale body 641 has multiple sets of symmetrically distributed locking holes 642. The lower end of the platform scale body 641 is detachably installed with multiple sets of symmetrically distributed guide rod connecting sleeve assemblies 68. The rod connecting sleeve assembly 68 includes a guide rod connecting sleeve body 681, the surface of which has a second through hole 682. Multiple sets of symmetrically distributed guide rod and guide sleeve assemblies 63 are detachably installed at the lower end of the intermediate plate 61. Each guide rod and guide sleeve assembly 63 includes a guide rod and guide sleeve body 631, the surface of which has a first through hole 632. Multiple symmetrically distributed guide rod bodies 69 are fixedly installed at the lower end of the platform support plate body 641. The outer ends of the guide rod bodies 69 are slidably connected to the inner walls of the first through hole 632 and the second through hole 682.

[0040] Specifically, when lifting the tire blank body 4, the cylinder 62 can be controlled by the foot switch 3. At this time, the end of the telescopic rod of the cylinder 62 directly drives the platform scale pallet assembly 64, the guide rod body 69 and the electronic platform scale assembly 7 to move upward. When the electronic platform scale assembly 7 moves upward, it will directly lift the tire blank support limit mechanism 5 and the tire blank body 4, realizing the action switch of "low-position isolation when not weighing and high-position lifting when weighing", further realizing the combination of impact isolation and accurate weighing.

[0041] In this embodiment, the electronic platform scale assembly 7 includes an electronic platform scale body 71. A shock-absorbing pad 72 is fixedly installed on the upper end of the electronic platform scale body 71. Support columns 74 are provided at each corner of the lower end of the electronic platform scale body 71. The lower ends of multiple support columns 74 are all located on the upper end of the platform scale pallet assembly 64. Lifting strips 73 are fixedly installed on the front and rear sides of the upper end of the shock-absorbing pad 72.

[0042] Specifically, the electronic platform scale component 7 can be used to weigh the embryo body 4.

[0043] In this embodiment, the guide pin guard plate 513 includes a first protective part 5131, the upper end of which is fixedly installed on the lower end of the tire blank placement panel 51, and a second protective part 5132 is fixedly installed on the outer end of the first protective part 5131, the upper end of which is fixedly installed on the lower end of the tire blank placement panel 51. Both the first protective part 5131 and the second protective part 5132 are located on the outer side of the guide pin body 53.

[0044] Specifically, the guide pin guard plate 513 can provide external protection for the guide pin body 53.

[0045] In this embodiment, the upper end of the bottom limiting plate 59 is slidably connected to the lower end of the embryo placement panel 51, and the lower end of the top limiting plate 511 is slidably connected to the upper end of the embryo placement panel 51.

[0046] Specifically, ensure that the tire blank limiting arc plate 512 does not wobble during movement.

[0047] In this embodiment, the foot switch 3 includes a foot pedal 31, which is disposed at the lower part of the U-shaped frame 11, and a fixing part 32 is disposed at the upper end of the foot pedal 31.

[0048] Specifically, the foot switch 3 can be used to control the opening and closing of cylinder 62.

[0049] In this embodiment, a plurality of first mounting holes 633 are provided on the outer side of the upper end of the guide rod sleeve body 631 in a circular arrangement. The inner wall of the first mounting hole 633 is threaded with a first internal hexagon bolt 66, which is threaded to the surface of the intermediate plate 61.

[0050] Specifically, the first internal hex bolt 66 facilitates the disassembly of the guide rod sleeve body 631 from the intermediate plate 61.

[0051] In this embodiment, a plurality of second mounting holes 683 are provided on the outer side of the upper end of the guide rod connecting sleeve body 681 in a circular arrangement. The inner wall of the second mounting hole 683 is threaded with a second internal hex bolt 67, and the upper part of the second internal hex bolt 67 is threaded to the inner wall of the locking hole 642.

[0052] Specifically, the second internal hex bolt 67 facilitates the disassembly of the guide rod connecting sleeve body 681 from the platform scale plate body 641.

[0053] In this embodiment, the bottom fastening assembly 2 includes a bottom fastening plate 21. The upper end of the bottom fastening plate 21 is fixedly installed on the lower end of the column 14. Each bottom fastening plate 21 has a plurality of symmetrically distributed bottom mounting holes 22 on its upper end.

[0054] Specifically, the bottom fastening component 2 secures the entire device to the ground.

[0055] Working principle: When weighing the tire carcass 4, the foot switch 3 can be used to control the cylinder 62 for the first time. At this time, the end of the cylinder 62's extension rod directly drives the platform plate 641, the electronic platform scale assembly 7, and the tire carcass support and limit mechanism 5 to lift up. At this time, the electronic platform scale assembly 7 can complete the weighing of the tire carcass support and limit mechanism 5. Next, the foot switch 3 is used to control the cylinder 62, and the end of the cylinder 62's extension rod directly drives the platform plate 641, the electronic platform scale assembly 7, and the tire carcass support and limit mechanism 5 to lift up. The embryo support limiting mechanism 5 moves downward. Once the electronic platform scale assembly 7 separates from the embryo support limiting mechanism 5, the embryo limiting arc plate 512 on one side is pulled outward. The embryo limiting arc plate 512 on one side directly drives the top limiting plate 511, slider 510, and bottom limiting plate 59 on the same side to move. At this time, the slider 510 slides on the inner wall of the slide groove 52. At the same time, the bottom limiting plate 59 directly drives the moving rod 58 and the rack 57 to move outward. At this time, the rack 57 directly drives the central gear 5 5. Rotate clockwise. At this time, the central gear 55 directly drives the follower shaft 54 ​​to rotate clockwise, and the torsion spring 56 will generate a torsion effect. Next, place the tire body 4 between the two tire body limiting arc plates 512. Then release one side of the tire body limiting arc plate 512. At this time, the torsion spring 56 needs to return to its original state. The two tire body limiting arc plates 512 will move closer to each other. When the inner ends of both tire body limiting arc plates 512 are in contact with the outer ends of the tire body 4, the tire body is ready. Then, press the foot switch 3 again. The cylinder 62 is controlled so that the end of the cylinder 62 extension rod directly drives the platform plate body 641, the electronic platform scale assembly 7, the tire carcass support and limiting mechanism 5, and the tire carcass body 4 to be lifted. When the upper end of the electronic platform scale assembly 7 contacts the lower end of the tire carcass support and limiting mechanism 5, and the tire carcass support and limiting mechanism 5 is separated from the column 14, the electronic platform scale assembly 7 can weigh the tire carcass support and limiting mechanism 5 and the tire carcass body 4 as a whole. Then, the weight of the tire carcass body 4 can be obtained by subtracting the two weighing results.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant weighing device, comprising a frame assembly (1), characterized in that: The frame assembly (1) includes a U-shaped frame (11). Two symmetrically distributed intermediate rods (12) are fixedly installed at the inner end of the U-shaped frame (11). Each intermediate rod (12) has multiple evenly distributed intermediate holes (13) on its upper surface. Each corner of the U-shaped frame (11) is fixedly installed with a column (14). Each column (14) has a bottom fastening assembly (2) fixedly installed at its lower end. A foot switch (3) is provided on the left side of the bottom fastening assembly (2) on the right side. Each column (14) has an alignment hole (15) on its upper end. A tire blank support and limiting mechanism (5) is provided on the upper end of multiple columns (14). The tire blank support and limiting mechanism (5) includes a tire blank placement surface. The plate (51) has a tire body (4) at the upper center of the tire placement panel (51). The two intermediate rods (12) are detachably mounted with a tire lifting mechanism (6). An electronic platform scale assembly (7) is provided at the upper end of the tire lifting mechanism (6). The bottom fastening assembly (2) serves to securely install the entire device to the ground. The tire support limiting mechanism (5) serves to center and limit the tire body (4) with different outer diameters. The tire lifting mechanism (6) serves to lift together the tire support limiting mechanism (5), the electronic platform scale assembly (7) and the tire body (4). The electronic platform scale assembly (7) serves to weigh the tire body (4).

2. The impact-resistant weighing device according to claim 1, characterized in that: Each corner of the lower end of the tire blank placement panel (51) is fixedly equipped with a guide pin body (53), and each guide pin body (53) is inserted into an alignment hole (15). Each corner of the lower end of the tire blank placement panel (51) is provided with a guide pin guard plate (513). Both sides of the upper end of the tire blank placement panel (51) are provided with a sliding groove (52). The lower middle part of the tire blank placement panel (51) is rotatably connected to a follower shaft (54) through a bearing. The lower end of the follower shaft (54) is fixedly equipped with a central gear (55). The upper end of the central gear (55) is fixedly equipped with a torsion spring (56), and the upper end of the torsion spring (56) is fixedly installed at the lower end of the tire blank placement panel (51). The torsion spring (56) is sleeved on the outside of the follower shaft (54). The central gear (55) is meshed with two racks (57) arranged in a centrally symmetrical manner on the front and rear sides. A moving rod (58) is fixedly installed on the outer side of the upper end of each rack (57). A bottom limiting plate (59) is fixedly installed on the upper end of each moving rod (58). A slider (510) is fixedly installed on the upper end of the bottom limiting plate (59). A top limiting plate (511) is fixedly installed on the upper end of the slider (510). A tire blank limiting arc plate (512) is fixedly installed on the upper end of the top limiting plate (511). A tire blank body (4) is provided between the two tire blank limiting arc plates (512).

3. The impact-resistant weighing device according to claim 1, characterized in that: The tire lifting mechanism (6) includes an intermediate plate (61). The surface of the intermediate plate (61) is detachably connected to the upper ends of two intermediate rods (12) by multiple locking bolts (65). A cylinder (62) is fixedly installed in the middle of the lower end of the intermediate plate (61). A platform scale pallet assembly (64) is detachably installed at the end of the telescopic rod of the cylinder (62). The platform scale pallet assembly (64) includes a platform scale pallet body (641). The upper end of the platform scale pallet body (641) has multiple sets of symmetrically distributed locking holes (642). The lower end of the platform scale pallet body (641) is detachably installed with multiple sets of symmetrically distributed guide rod connecting sleeve assemblies (68). The connecting sleeve assembly (68) includes a guide rod connecting sleeve body (681), the surface of which is provided with a second through hole (682). Multiple sets of symmetrically distributed guide rod sleeve assemblies (63) are detachably installed at the lower end of the intermediate plate (61). The guide rod sleeve assembly (63) includes a guide rod sleeve body (631), the surface of which is provided with a first through hole (632). Multiple symmetrically distributed guide rod bodies (69) are fixedly installed at the lower end of the platform plate body (641). The outer end of the guide rod body (69) is slidably connected to the inner wall of the first through hole (632) and the second through hole (682).

4. The impact-resistant weighing device according to claim 1, characterized in that: The electronic platform scale assembly (7) includes an electronic platform scale body (71), a shock-absorbing pad (72) is fixedly installed on the upper end of the electronic platform scale body (71), and a support column (74) is provided at each corner of the lower end of the electronic platform scale body (71). The lower ends of the multiple support columns (74) are all located on the upper end of the platform scale pallet assembly (64), and a lifting strip (73) is fixedly installed on both the front and rear sides of the upper end of the shock-absorbing pad (72).

5. The impact-resistant weighing device according to claim 2, characterized in that: The guide pin guard plate (513) includes a first protective part (5131), the upper end of which is fixedly installed on the lower end of the tire blank placement panel (51), and a second protective part (5132) is fixedly installed on the outer end of the first protective part (5131), the upper end of which is fixedly installed on the lower end of the tire blank placement panel (51), and both the first protective part (5131) and the second protective part (5132) are located on the outside of the guide pin body (53).

6. The impact-resistant weighing device according to claim 2, characterized in that: The upper end of the bottom limiting plate (59) is slidably connected to the lower end of the embryo placement panel (51), and the lower end of the top limiting plate (511) is slidably connected to the upper end of the embryo placement panel (51).

7. The impact-resistant weighing device according to claim 1, characterized in that: The foot switch (3) includes a foot pedal (31), which is located at the lower part of the loop frame (11), and a fixing part (32) is provided at the upper end of the foot pedal (31).

8. The impact-resistant weighing device according to claim 3, characterized in that: The upper outer side of the guide rod sleeve body (631) is provided with a plurality of first mounting holes (633) arranged in a circular pattern. The inner wall of the first mounting hole (633) is threaded with a first internal hex bolt (66), and the first internal hex bolt (66) is threaded to the surface of the intermediate plate (61).

9. The impact-resistant weighing device according to claim 3, characterized in that: The upper outer side of the guide rod connecting sleeve body (681) is provided with a plurality of second mounting holes (683) distributed in a circular pattern. The inner wall of the second mounting hole (683) is threaded with a second internal hex bolt (67). The upper section of the second internal hex bolt (67) is threaded to the inner wall of the locking hole (642).

10. The impact-resistant weighing device according to claim 1, characterized in that: The bottom fastening assembly (2) includes a bottom fastening plate (21), the upper end of which is fixedly installed on the lower end of the column (14), and each bottom fastening plate (21) has multiple symmetrically distributed bottom mounting holes (22) on its upper end.

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