Totally sealed electronic truck scale

Abstract

The utility model relates to electronic truck scale technical field, concretely is a kind of full-sealed electronic truck scale.The utility model, one end of weighing platform is detachably connected with the side wall of weighing platform by connecting mechanism in the weighing ramp, the weighing ramp is inclined to assist vehicle to travel to the top of weighing platform along its inclined direction, the connecting mechanism includes first connecting piece and second connecting piece, the first connecting piece is fixedly assembled in the end face of weighing ramp close to weighing platform, the second connecting piece is fixedly assembled in the side wall of weighing platform corresponding first connecting piece, and first connecting piece and second connecting piece are adapted to engage, the utility model, by setting connecting mechanism, the engagement type connection of weighing ramp and weighing platform is realized, when inserting rod is inserted into hollow sleeve, first hook and second hook are automatically hooked under the action of reset spring, cooperate with the locking of fixed pin to mesh rack, can ensure the stability of connection, avoid loosening caused by vehicle rolling.

Description

Technical Field

[0001] This utility model relates to the field of electronic truck scale technology, and in particular to a fully sealed electronic truck scale. Background Technology

[0002] Electronic truck scales are commonly used for vehicle weight measurement and are widely applied in logistics warehousing, transportation, and industrial production. Their core function is to support vehicles on a weighing platform and achieve accurate weight measurement.

[0003] However, existing electronic truck scales still have technical defects in actual use. The auxiliary ramps (used to guide vehicles up and down the weighing platform) of existing electronic truck scales are mostly assembled with the weighing platform by fixed welding or simple bolt connection. Although the fixed welding structure can ensure a stable connection, it cannot be disassembled, resulting in the equipment occupying a lot of space and being inconvenient to handle during transportation. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the background art by proposing a fully sealed electronic truck scale.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fully sealed electronic truck scale, comprising a weighing platform, wherein ramps are provided on both sides of the weighing platform along its length direction, and the end of the ramp near the weighing platform is detachably connected to the side wall of the weighing platform through a connecting mechanism. The ramps are inclined to assist vehicles in traveling along their inclined direction to the top of the weighing platform. The connecting mechanism includes a first connector and a second connector. The first connector is fixedly assembled on the end face of the ramp near the weighing platform, and the second connector is fixedly assembled on the side wall of the weighing platform corresponding to the first connector, and the first connector and the second connector are adapted to engage.

[0006] Preferably, the top end face of the weighing platform is covered with a platform guard plate, which is fixed to the weighing platform at intervals along the edge of the weighing platform by bolts. The upper surface of the platform guard plate is provided with a plurality of anti-slip ribs at intervals along its length direction. The length direction of each anti-slip rib is consistent with the width direction of the weighing platform to prevent the vehicle tires from sliding on the platform guard plate.

[0007] Preferably, the first connector includes a fixing seat, which is block-shaped and fixedly attached to the end face of the ramp near the weighing platform. The fixing seat extends horizontally toward the side wall of the weighing platform to form a plug-in rod. The axis of the plug-in rod is perpendicular to the side wall of the weighing platform. The outer circumference of the plug-in rod is provided with a plurality of first hooks at intervals along its length. Each first hook protrudes toward the direction away from the ramp, and the end face of the first hook is inclined.

[0008] Preferably, the second connector includes a hollow sleeve, which is fixed horizontally to the side wall of the weighing platform, and the axis of the hollow sleeve is collinear with the axis of the insertion rod. The interior of the hollow sleeve forms a channel for the insertion rod to be inserted. A gear shaft is rotatably connected to the inner wall of the hollow sleeve along its radial direction. The axial direction of the gear shaft is perpendicular to the axial direction of the hollow sleeve. A check plate is fixedly connected to the outer circumferential surface of the gear shaft. The free end of the check plate extends into the internal channel of the hollow sleeve, and a second hook is provided on the side of the free end of the check plate facing the channel entrance. A return spring is fixedly connected between the side of the check plate facing the inner wall of the hollow sleeve and the inner wall of the hollow sleeve. When the return spring is in its natural state, the second hook of the check plate protrudes into the channel to prevent the insertion rod from coming out.

[0009] Preferably, the gear shaft includes a gear and a shaft. The two ends of the shaft are rotatably supported on the inner walls of the hollow sleeve by bearings, and one end of the shaft extends out of the hollow sleeve. The part of the shaft inside the hollow sleeve is fixedly connected to one end of the check plate, and the end of the shaft extending out of the hollow sleeve is coaxially fixedly connected to the gear. The tooth surface of the gear faces away from the hollow sleeve.

[0010] Preferably, the side wall of the hollow sleeve has a strip-shaped hole along its axial direction, which communicates with the internal channel of the hollow sleeve. A meshing rack slides through the strip-shaped hole along the axial direction of the hollow sleeve. The portion of the meshing rack inside the hollow sleeve meshes with a gear. A pin hole is formed at one end of the meshing rack outside the hollow sleeve. A insertion hole is formed on the side wall of the weighing platform corresponding to the pin hole. A fixing pin is inserted and removed into the pin hole and the insertion hole. When the ramp for climbing the scale needs to be installed, the fixing pin is first pulled out to release the restriction on the meshing rack. Then, the insertion rod is inserted into the channel along the axis of the hollow sleeve. The first hook of the insertion rod presses against the second hook of the check plate, forcing... The check plate rotates around the shaft towards the inner wall of the hollow sleeve, and the return spring is compressed synchronously. After the last first hook passes the second hook, the return spring rebounds and pushes the check plate to return to its original position. The second hook engages with the first hook. Finally, the fixing pin is inserted to lock the meshing rack and complete the assembly. When it is necessary to disassemble the weighing ramp, first pull out the fixing pin, and then continue to push the connecting rod into the channel to separate the first hook from the second hook. Push the meshing rack to slide along the strip hole. The meshing rack drives the gear to rotate. The gear drives the check plate to rotate away from the channel through the shaft. The second hook disengages from the channel. Finally, pull out the connecting rod, reset the meshing rack and check plate, and insert the fixing pin.

[0011] Preferably, a cleaning mechanism is fixedly mounted on the side wall of the weighing platform along its height direction. The cleaning mechanism is located beside the weighing ramp. The cleaning mechanism includes a threaded sleeve, which is fixed horizontally to the side wall of the weighing platform. A threaded rod is threadedly connected inside the threaded sleeve along its axial direction. The outer circumferential surface of the threaded rod protrudes radially to form a gripping ring. The gripping ring is located at the end of the threaded rod away from the weighing platform. The end of the threaded rod near the weighing platform is rotatably connected to a connecting block via a bearing. The connecting block is coaxially arranged with the threaded rod.

[0012] Preferably, a connecting support rod is fixedly connected to the end of the connecting block away from the threaded rod in a direction perpendicular to the threaded rod. The length direction of the connecting support rod is consistent with the length direction of the anti-slip ribs of the platform guard plate. A stone-removing rake is fixedly connected to the end of the connecting support rod away from the connecting block in a direction perpendicular to the connecting support rod. The rake teeth of the stone-removing rake face the anti-slip ribs of the platform guard plate, and the spacing between the rake teeth matches the spacing between the anti-slip ribs. A placement block is fixedly located on the side wall of the weighing platform directly below the stone-removing rake. The upper surface of the placement block has a groove that matches the stone-removing rake and is used to support the stone-removing rake when not in use. When sand and gravel are stuck in the gaps of the anti-slip ribs, rotating the gripping ring drives the threaded rod to rotate outward along the axis of the threaded sleeve until the threaded rod is disengaged from the threaded sleeve. Holding the connecting support rod drives the stone-removing rake to move along the length direction of the anti-slip ribs, so that the rake teeth extend into the gaps to clean the sand and gravel.

[0013] In summary, the beneficial effects of this utility model are as follows: By setting up a connection mechanism consisting of a first connector, a second connector, a return spring, and a fixing pin, a snap-fit ​​connection is achieved between the weighing ramp and the weighing platform. When the plug rod is inserted into the hollow sleeve, the first hook and the second hook automatically engage under the action of the return spring. Combined with the locking of the meshing rack by the fixing pin, the connection is stable and loosening caused by vehicle running over it is prevented. When disassembling, it is only necessary to pull out the fixing pin and push the meshing rack to release the snap-fit ​​without the need for complicated tools. This not only solves the problem of the inability to disassemble and assemble traditional welded structures, but also overcomes the defect of easy loosening of bolted connections, which facilitates equipment transportation and subsequent maintenance.

[0014] The anti-slip ribs on the countertop effectively increase the friction between the vehicle tires and the countertop, preventing the vehicle from sliding. At the same time, the specially designed cleaning mechanism can target and remove sand and debris from the gaps in the anti-slip ribs. The cleaning rake can be removed by rotating the grip ring and moved along the length of the anti-slip ribs to complete the cleaning. There is no need for manual digging, making it easy to operate and maintaining the effectiveness of the anti-slip structure for a long time, avoiding the decrease in anti-slip effect and countertop wear caused by the accumulation of debris.

[0015] The platform's top is protected by a protective plate that can directly withstand vehicle traffic, preventing wear and tear on the platform itself. The hollow sleeve in the connecting mechanism, which encloses the connecting rod, gears, and meshing racks, effectively prevents rainwater and dust intrusion, reducing the risk of rust and jamming. Furthermore, the stone-removing rake can be placed in a recessed area when not in use, preventing damage from external impacts. The overall structure enhances the protection of core components and extends the overall lifespan of the equipment. The weighing ramp and platform are precisely aligned via a connecting mechanism, ensuring smooth vehicle movement up and down the inclined ramp and preventing bumps caused by ramp misalignment. The check plate and return spring automatically lock in one direction after the connecting rod is inserted, ensuring reliable connection without additional operation and further improving the stability of the equipment during operation, adapting to the frequent passage needs of vehicles of different tonnages. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention from another angle; Figure 3 This utility model Figure 1 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional three-dimensional structural diagram of the connecting mechanism of this utility model.

[0017] Legend: 1. Weighing platform; 2. Platform guard plate; 21. Anti-slip ribs; 3. Scale ramp; 4. Connecting mechanism; 41. First connector; 411. Fixed seat; 412. Insert rod; 413. First hook; 42. Second connector; 421. Check plate; 4211. Second hook; 422. Gear shaft; 423. Return spring; 424. Meshing rack; 425. Fixed pin; 426. Hollow sleeve; 5. Control unit; 6. Cleaning mechanism; 61. Threaded sleeve; 62. Threaded rod; 63. Holding ring; 64. Connecting block; 65. Connecting support rod; 66. Stone cleaning rake; 67. Placement block. Detailed Implementation

[0018] Reference Figures 1-4As shown, this utility model provides a technical solution: a fully sealed electronic truck scale with a weighing platform 1 as the main load-bearing structure for supporting vehicles to be weighed. The weighing platform 1 has ramps 3 on both sides along its length. The ramps 3 are inclined, and their ends near the weighing platform 1 are detachably connected to the side wall of the weighing platform 1 via a connecting mechanism 4. Vehicles can smoothly travel along the inclined direction of the ramps 3 to the top of the weighing platform 1. The connecting mechanism 4 includes a first connecting member 41 and a second connecting member 42. The first connecting member 41 is fixedly assembled to the end face of the ramp 3 near the weighing platform 1. During assembly, the connection between the first connecting member 41 and the ramp 3 can be ensured by welding or bolt tightening. The second connecting member 42 is fixedly assembled to the side wall of the weighing platform 1 corresponding to the first connecting member 41, and the structures of the first connecting member 41 and the second connecting member 42 are adapted to achieve a snap-fit ​​connection.

[0019] The top surface of the weighing platform 1 is covered with a platform guard plate 2. The coverage area of ​​the platform guard plate 2 is consistent with the top area of ​​the weighing platform 1 to achieve comprehensive protection. The platform guard plate 2 is fixed to the weighing platform 1 with bolts evenly spaced along the edge of the weighing platform 1. The distribution of the bolts ensures that the platform guard plate 2 is evenly stressed and will not shift due to vehicle pressure. Several anti-slip ribs 21 are protruding along the length of the upper surface of the platform guard plate 2. Each anti-slip rib 21 is a long strip-shaped protrusion, and the length direction of the anti-slip rib 21 is consistent with the width direction of the weighing platform 1. When a vehicle drives on the platform guard plate 2, the tires come into contact with the anti-slip ribs 21, which increases friction and prevents the vehicle tires from slipping.

[0020] The first connector 41 includes a fixing seat 411, which is a block structure and is fixedly attached to the end face of the ramp 3 near the weighing platform 1. The contact surface between the fixing seat 411 and the ramp 3 can be polished to ensure a tight fit. The fixing seat 411 extends horizontally toward the side wall of the weighing platform 1 to form a plug-in rod 412. The plug-in rod 412 and the fixing seat 411 are integrally formed to ensure structural strength. The axis of the plug-in rod 412 is perpendicular to the side wall of the weighing platform 1, so that the plug-in rod 412 can be aligned horizontally with the second connector 42. The outer circumferential surface of the plug-in rod 412 is provided with a plurality of first hooks 413 at intervals along its length. Each first hook 413 protrudes toward the direction away from the ramp 3, and the end face of the first hook 413 is inclined. This inclined structure can reduce resistance when the plug-in rod 412 is inserted into the second connector 42.

[0021] The second connecting member 42 includes a hollow sleeve 426, which is fixed horizontally to the side wall of the weighing platform 1. The connection between the hollow sleeve 426 and the weighing platform 1 can be achieved by welding or bolting. The axis of the hollow sleeve 426 is collinear with the axis of the insertion rod 412, ensuring that the insertion rod 412 can be accurately inserted into the hollow sleeve 426. The interior of the hollow sleeve 426 forms a channel for the insertion rod 412. The inner diameter of the channel is adapted to the outer diameter of the insertion rod 412 to ensure that the insertion rod 412 does not wobble excessively after insertion. A gear shaft 422 is rotatably connected to the inner wall of the hollow sleeve 426 along its radial direction. The axial direction of the gear shaft 422 is perpendicular to the axial direction of the hollow sleeve 426. Both ends of the gear shaft 422 are connected to the inner wall of the hollow sleeve 426 through bearings to achieve smooth rotation. A check plate 421 is fixedly connected to the outer circumferential surface of the gear shaft 422. The check plate 421 and the shaft can be fixed by welding. The free end of the check plate 421 extends into the internal channel of the hollow sleeve 426, and a second hook 4211 is provided on the side of the free end of the check plate 421 facing the channel entrance. The second hook 4211 and the check plate 421 are integrally formed. A return spring 423 is fixedly connected between the side of the check plate 421 facing the inner wall of the hollow sleeve 426 and the inner wall of the hollow sleeve 426. The two ends of the return spring 423 can be connected to the check plate 421 and the inner wall of the hollow sleeve 426 respectively by hooks or welding. When the return spring 423 is in its natural state, the second hook 4211 of the check plate 421 protrudes into the channel to prevent the plug rod 412 from coming out.

[0022] The gear shaft 422 includes a gear and a shaft. Both ends of the shaft are rotatably supported on the inner walls of the hollow sleeve 426 via bearings. The bearings reduce frictional resistance during shaft rotation, and one end of the shaft extends outside the hollow sleeve 426. The portion of the shaft inside the hollow sleeve 426 is fixedly connected to one end of the check plate 421. Welding can be used to ensure connection strength. The end of the shaft extending outside the hollow sleeve 426 is coaxially fixedly connected to the gear. The coaxiality of the gear and shaft can be ensured through machining to guarantee precise transmission. The gear teeth face away from the hollow sleeve 426 to facilitate engagement with the meshing rack 424.

[0023] A strip-shaped hole is formed along the axial direction of the side wall of the hollow sleeve 426. The length direction of the strip-shaped hole is consistent with the axial direction of the hollow sleeve 426, and the strip-shaped hole communicates with the internal channel of the hollow sleeve 426. A meshing rack 424 slides through the strip-shaped hole along the axial direction of the hollow sleeve 426. The width of the meshing rack 424 is adapted to the width of the strip-shaped hole to ensure smooth sliding. The part of the meshing rack 424 located inside the hollow sleeve 426 meshes with a gear. The tooth density of the meshing rack 424 matches the tooth density of the gear to achieve stable transmission. A pin hole is formed at one end of the meshing rack 424 located outside the hollow sleeve 426. A insertion hole is formed on the side wall of the weighing platform 1 at the position corresponding to the pin hole. The diameter of the pin hole and the insertion hole are the same. A fixing pin 425 can be inserted and removed through the pin hole and the insertion hole to limit the meshing rack 424. When assembling the ramp 3, first pull out the fixing pin 425 to release the limit on the meshing rack 424. Then, slowly insert the connector rod 412 into the channel along the axis of the hollow sleeve 426. The first hook 413 on the connector rod 412 will contact and squeeze the second hook 4211 on the check plate 421, forcing the check plate 421 to rotate around the shaft towards the inner wall of the hollow sleeve 426. The return spring 423 is compressed synchronously with the rotation of the check plate 421. After the last first hook 413 passes the second hook 4211, the return spring 423 rebounds under its own elastic force and pushes the check plate 421 to return to its original position. At this time, the second hook 4211 and the first hook 413 hook each other to prevent the connector rod 412 from coming out. Finally, insert the fixing pin 425 into the pin hole and the insertion hole to lock the meshing rack 424 to complete the assembly. When it is necessary to disassemble the weighing ramp 3, first pull out the fixing pin 425 to release the restriction on the meshing rack 424, then continue to push the insertion rod 412 into the hollow sleeve 426, so that the first hook 413 and the second hook 4211 separate and form a certain distance. Then push the meshing rack 424 to slide along the strip hole. When the meshing rack 424 slides, it drives the gear meshing with it to rotate. The rotation of the gear will drive the shaft to rotate synchronously. The rotation of the shaft will drive the check plate 421 to rotate away from the channel, so that the second hook 4211 rises and moves away from the channel to release the obstruction of the insertion rod 412. At this time, pull the insertion rod 412 out of the hollow sleeve 426, then push the meshing rack 424 to reset and drive the gear, shaft and check plate 421 to reset. Finally, reinsert the fixing pin 425 into the insertion hole and pin hole to complete the disassembly.

[0024] A cleaning mechanism 6 is fixedly assembled on the side wall of the weighing platform 1 along its height direction, and the cleaning mechanism 6 is located beside the weighing ramp 3 to avoid affecting vehicles moving onto and off the weighing platform 1. The cleaning mechanism 6 includes a threaded sleeve 61, which is horizontally fixed on the side wall of the weighing platform 1, and the connection between the threaded sleeve 61 and the weighing platform 1 can be realized by welding or bolt fastening. A threaded rod 62 is threadedly connected inside the threaded sleeve 61 along its axial direction, and the external thread of the threaded rod 62 matches the internal thread of the threaded sleeve 61 to ensure stable threaded connection. A grip convex ring 63 is formed by protruding radially on the outer circumferential surface of the threaded rod 62, the grip convex ring 63 and the threaded rod 62 are of an integrally formed structure, and the grip convex ring 63 is located at the end of the threaded rod 62 away from the weighing platform 1, so that an operator can conveniently rotate the threaded rod 62 through the grip convex ring 63. The end of the threaded rod 62 close to the weighing platform 1 is rotatably connected with a connecting block 64 through a bearing. The arrangement of the bearing can ensure that the connecting block 64 will not rotate synchronously with the threaded rod 62 when the threaded rod 62 rotates, and the connecting block 64 and the threaded rod 62 are arranged coaxially to ensure force balance.

[0025] The end of the connecting block 64 away from the threaded rod 62 is fixedly connected with a connecting strut 65 in a direction perpendicular to the threaded rod 62. The connecting strut 65 and the connecting block 64 can be fixed by welding, and the length direction of the connecting strut 65 is consistent with the length direction of the anti-slip ribs 21 of the platform guard plate 2 to facilitate subsequent cleaning operations. The end of the connecting strut 65 away from the connecting block 64 is fixedly connected with a stone cleaning rake 66 in a direction perpendicular to the connecting strut 65. The rake teeth of the stone cleaning rake 66 are elongated and face the anti-slip ribs 21 of the platform guard plate 2, and the spacing between the rake teeth is adapted to the spacing between the anti-slip ribs 21, so that the rake teeth can smoothly extend into the gaps between the anti-slip ribs 21. A placement block 67 is fixed on the side wall of the weighing platform 1 at a position directly below the stone cleaning rake 66. The placement block 67 and the side wall of the weighing platform 1 can be fixed by welding. The upper surface of the placement block 67 is provided with a groove adapted to the stone cleaning rake 66, and the shape and size of the groove match the outer shape of the stone cleaning rake 66. In the non-use state, the stone cleaning rake 66 can be placed in the groove for supporting. When sand and stones are stuck in the gaps between the anti-slip ribs 21, the operator rotates the grip convex ring 63 to drive the threaded rod 62 to screw out along the axis of the threaded sleeve 61 until the threaded rod 62 is completely separated from the threaded sleeve 61, then holds the connecting strut 65 to drive the stone cleaning rake 66 to move along the length direction of the anti-slip ribs 21, so that the rake teeth of the stone cleaning rake 66 extend into the gaps between the anti-slip ribs 21, and the sand and stones in the gaps are cleaned out through the movement of the rake teeth.< / Detailed Description of the Embodiments> Working Principle The working principle of this fully sealed electronic truck scale revolves around four core processes: assembly, weighing, disassembly, and cleaning. During the assembly stage of the ramp 3, the plug rod 412 of the first connecting piece 41 engages with the hollow sleeve 426 of the second connecting piece 42. Utilizing the locking action of the first hook 413 and the second hook 4211, along with the elastic restoring force of the return spring 423, a quick and stable connection is achieved between the ramp 3 and the weighing platform 1. The fixing pin 425 further prevents loosening of components after assembly by locking the meshing rack 424. During weighing operations, the weighing platform 1 serves as the main support for the vehicle to be weighed. The platform guard plate 2 provides protection to the top of the weighing platform 1, preventing direct wear. Simultaneously, the anti-slip ribs 21 on the platform guard plate 2 increase the friction between the tires and the guard plate, preventing the vehicle from slipping during weighing due to starting, braking, or slight tilting of the platform, ensuring stability during the weighing process. When the weighing ramp 3 needs to be disassembled for maintenance or transportation, the limiting position on the meshing rack 424 is released by pulling out the fixing pin 425. After pushing the plug rod 412 to separate the first hook 413 from the second hook 4211, the meshing transmission of the meshing rack 424 and the gear drives the check plate 421 to rotate, releasing the obstruction of the plug rod 412 by the second hook 4211, thus realizing the convenient disassembly of the weighing ramp 3. When sand and gravel accumulate in the gaps of the anti-slip rib 21 and affect the anti-slip effect, the threaded rod 62 is separated from the threaded sleeve 61 by rotating the gripping convex ring 63. The hand-held connecting support rod 65 drives the stone-removing rake 66 into the gap, and the sand and gravel are removed by the fit between the rake teeth and the gap, ensuring the continuous effectiveness of the anti-slip function of the anti-slip rib 21. The overall structure, through the synergistic effect of each component, achieves accurate and stable vehicle weighing and convenient equipment maintenance.

Claims

1. A fully sealed electronic truck scale, comprising a weighing platform (1), characterized in that: The weighing platform (1) is provided with ramps (3) on both sides along its length. The end of the ramp (3) near the weighing platform (1) is detachably connected to the side wall of the weighing platform (1) through a connecting mechanism (4). The ramp (3) is inclined to assist the vehicle to travel along its inclined direction to the top of the weighing platform (1). The connecting mechanism (4) includes a first connector (41) and a second connector (42). The first connector (41) is fixedly assembled on the end face of the ramp (3) near the weighing platform (1). The second connector (42) is fixedly assembled on the side wall of the weighing platform (1) corresponding to the first connector (41). The first connector (41) and the second connector (42) are adapted to engage.

2. The fully sealed electronic truck scale according to claim 1, characterized in that: The top end face of the weighing platform (1) is covered with a platform guard plate (2). The platform guard plate (2) is fixed to the weighing platform (1) at intervals along the edge of the weighing platform (1) by bolts. The upper surface of the platform guard plate (2) is provided with a number of anti-slip ribs (21) at intervals along its length direction. The length direction of each anti-slip rib (21) is consistent with the width direction of the weighing platform (1) to prevent the vehicle tires from sliding on the platform guard plate (2).

3. The fully sealed electronic truck scale according to claim 2, characterized in that: The first connector (41) includes a fixed seat (411), which is block-shaped and fixedly attached to the end face of the ramp (3) near the weighing platform (1). The fixed seat (411) extends horizontally toward the side wall of the weighing platform (1) to form a plug rod (412). The axis of the plug rod (412) is perpendicular to the side wall of the weighing platform (1). The outer circumferential surface of the plug rod (412) is provided with a plurality of first hooks (413) at intervals along its length. Each first hook (413) protrudes toward the direction away from the ramp (3), and the end face of the first hook (413) is inclined.

4. The fully sealed electronic truck scale according to claim 3, characterized in that: The second connector (42) includes a hollow sleeve (426), which is fixed horizontally to the side wall of the weighing platform (1). The axis of the hollow sleeve (426) is collinear with the axis of the insertion rod (412). The interior of the hollow sleeve (426) forms a channel for the insertion rod (412) to be inserted. A gear shaft (422) is rotatably connected to the inner wall of the hollow sleeve (426) along its radial direction. The axial direction of the gear shaft (422) is perpendicular to the axial direction of the hollow sleeve (426). The outer circumferential surface of the shaft of the gear shaft (422) is fixedly connected to... There is a check plate (421), the free end of which extends into the internal channel of the hollow sleeve (426), and the free end of the check plate (421) is provided with a second hook (4211) facing the channel entrance. A return spring (423) is fixedly connected between the side of the check plate (421) facing the inner wall of the hollow sleeve (426) and the inner wall of the hollow sleeve (426). When the return spring (423) is in the natural state, the second hook (4211) of the check plate (421) protrudes into the channel to prevent the plug rod (412) from coming out.

5. A fully sealed electronic truck scale according to claim 4, characterized in that: The gear shaft (422) includes a gear and a shaft. The two ends of the shaft are rotatably supported on the inner walls of the hollow sleeve (426) by bearings, and one end of the shaft extends to the outside of the hollow sleeve (426). The part of the shaft inside the hollow sleeve (426) is fixedly connected to one end of the check plate (421). The end of the shaft extending outside the hollow sleeve (426) is coaxially fixedly connected to the gear. The tooth surface of the gear faces away from the hollow sleeve (426).

6. A fully sealed electronic truck scale according to claim 5, characterized in that: The hollow sleeve (426) has a strip-shaped hole along its axial direction on its side wall. The strip-shaped hole is connected to the internal channel of the hollow sleeve (426). A meshing rack (424) is slidably passed through the strip-shaped hole along the axial direction of the hollow sleeve (426). The part of the meshing rack (424) inside the hollow sleeve (426) meshes with a gear. A pin hole is opened at one end of the meshing rack (424) outside the hollow sleeve (426). An insertion hole is opened on the side wall of the weighing platform (1) at the position corresponding to the pin hole. A fixing pin (425) can be inserted and removed through the pin hole and the insertion hole.

7. A fully sealed electronic truck scale according to claim 6, characterized in that: A cleaning mechanism (6) is fixedly mounted on the side wall of the weighing platform (1) along its height direction. The cleaning mechanism (6) is located beside the weighing ramp (3). The cleaning mechanism (6) includes a threaded sleeve (61). The threaded sleeve (61) is fixed to the side wall of the weighing platform (1) in the horizontal direction. A threaded rod (62) is threadedly connected inside the threaded sleeve (61) along its axial direction. The outer circumferential surface of the threaded rod (62) is radially raised to form a gripping convex ring (63). The gripping convex ring (63) is located at the end of the threaded rod (62) away from the weighing platform (1). The end of the threaded rod (62) close to the weighing platform (1) is rotatably connected to a connecting block (64) through a bearing. The connecting block (64) is coaxially arranged with the threaded rod (62).

8. A fully sealed electronic truck scale according to claim 7, characterized in that: The connecting block (64) is fixedly connected to a connecting support rod (65) at one end away from the threaded rod (62) in a direction perpendicular to the threaded rod (62). The length direction of the connecting support rod (65) is consistent with the length direction of the anti-slip ribs (21) of the tabletop guard plate (2). The connecting support rod (65) is fixedly connected to a stone cleaning rake (66) at one end away from the connecting block (64) in a direction perpendicular to the connecting support rod (65). The rake teeth of the stone cleaning rake (66) face the anti-slip ribs (21) of the tabletop guard plate (2), and the spacing between the rake teeth is adapted to the spacing between the anti-slip ribs (21). A placement block (67) is fixedly placed on the side wall of the weighing platform (1) at a position directly below the stone cleaning rake (66). The upper surface of the placement block (67) is provided with a groove adapted to the stone cleaning rake (66) for supporting the stone cleaning rake (66) when not in use.

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