Limiting mechanism of automobile weighing apparatus

Abstract

The utility model belongs to the technical field of automobile weighing instruments, and particularly relates to a limiting mechanism of an automobile weighing instrument, which comprises a wagon balance main body, anti-skid pads and a motor, the anti-skid pads are arranged on the upper surfaces of the two sides of the wagon balance main body, and the motor is arranged in the wagon balance main body. According to the utility model, the neutral gear, the rack, the displacement limiting frame, the shaft body connecting block, the turnover frame and the sleeve are arranged, the motor and the hydraulic cylinder are controlled through the external control unit, before a vehicle runs onto the wagon balance main body, the wheel track of the vehicle is measured firstly, and then the motor is controlled to drive the neutral gear to rotate; the middle gear rotates to drive the racks at the two ends to move, the moving directions of the racks are opposite, so that the displacement limiting frames on the two sides are driven to move synchronously, the displacement limiting frames drive the hydraulic air cylinders installed at the lower ends to move, the spacing of the limiting structure can be adjusted according to the measured wheel track of an automobile, and therefore accurate limiting is achieved. And the universality and practicability of the structure are improved, so that most vehicles can be limited.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technical field of truck scale, concretely is a kind of limiting mechanism of truck scale. BACKGROUND

[0002] Truck scale is a kind of equipment for measuring the weight of car, usually called truck scale or ground weight. It is mainly used to measure the load weight of truck, to ensure the weight control and management during transportation. In the process of using truck scale, since the car is in the state of stop, therefore, it needs to use suitable limiting mechanism to ensure that the car does not deviate from the position.

[0003] The prior art has the following disadvantages: in the prior art with publication number CN212963657U "a limiting mechanism of truck scale", "including upper support plate and lower support plate, the upper support plate is provided with limiting slot penetrating the upper support plate, limiting box is arranged below limiting slot, limiting box is communicated with limiting slot and limiting box is installed with support device;The support device includes sliding plate that is slidably connected in the limiting box, and further includes support seat that is arranged above the sliding plate, the support seat is elastically supported on the sliding plate, and the support seat is rotatably supported by two axis-parallel supporting rollers".

[0004] The above structure limits the position of the car by setting limiting slot, limiting box and support device, but the structure is the same as the limiting structure of traditional truck scale, and uses fixed-position limiting structure. This kind of structure is reliable and durable, but lacks flexibility. The position limitation of vehicle mainly relies on the fixation of car tire, and the wheel track parameters of car are different, so the universality is poor, and it cannot adapt to the limiting operation of most vehicles, and can only limit the vehicles with fixed wheel track. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a limiting mechanism of truck scale, which solves the problem of poor universality caused by the inability to change the distance between limiting structures according to wheel track.

[0006] To achieve the above object, the utility model provides the following technical scheme: a limiting mechanism of truck scale, including ground weight main body, non-slip pad and motor, the non-slip pad is arranged on the upper surface of both sides of ground weight main body, and the motor is arranged in the interior of ground weight main body.

[0007] The upper end of both sides of the ground weight main body is provided with a displacement limiting frame, and the middle part of the displacement limiting frame is provided with a hydraulic cylinder.

[0008] The ground weight main body further includes a center gear and a rack, the center gear is movably connected to the upper end of the motor, and the tooth groove of the rack is engaged with the center gear.

[0009] As an optimal technical scheme of the utility model, the outer periphery of the middle gear is provided with two groups of racks, and the outer side ends of the two groups of racks are fixedly connected with the displacement limiting frame.

[0010] As an optimal technical scheme of the utility model, the displacement limiting frame further comprises a shaft body connecting block, a turnover frame and a sleeve, the shaft body connecting block is movably connected between the turnover frame and the side wall of the displacement limiting frame, and the connection position of the turnover frame and the shaft body connecting block is provided with a shaft body structure penetrating therethrough.

[0011] As an optimal technical scheme of the utility model, the sleeve is movably connected to the bottom end of the turnover frame and is embedded by the columnar structure on the upper end of the hydraulic cylinder.

[0012] As an optimal technical scheme of the utility model, the middle part of the displacement limiting frame is provided with a groove structure, the bottom end is penetrated by the hydraulic cylinder, and the outer wall end faces on both sides are provided with rectangular groove structures.

[0013] As an optimal technical scheme of the utility model, the groove structure provided in the middle part of the displacement limiting frame is consistent with the shape of the turnover frame, and the turnover frame is embedded in the groove in the idle state.

[0014] As an optimal technical scheme of the utility model, the inside of the sleeve is further provided with a ball joint and a bearing structure, and the turnover frame can be rotated to 45° under the support of the ball joint and the bearing structure.

[0015] Compared with the prior art, the utility model provides a limiting mechanism of an automobile weighing scale:

[0016] A limiting mechanism of an automobile weighing scale, by setting a middle gear, a rack, a displacement limiting frame, a shaft body connecting block, a turnover frame and a sleeve, when the structure is used, the operator controls the motor and the hydraulic cylinder through the external control unit, before the vehicle drives onto the main body of the weighbridge, the operator first measures the wheel track of the vehicle, then controls the motor to drive the middle gear to rotate, the middle gear drives the two end racks to move when rotating, the moving directions of the racks are opposite, thereby driving the two displacement limiting frames to move synchronously, the displacement limiting frame drives the hydraulic cylinder installed at the lower end to move, until the distance between the two displacement limiting frames is consistent with the wheel track of the vehicle, then the vehicle drives onto the main body of the weighbridge, the hydraulic cylinder is controlled to be lifted and the turnover frame is driven to rotate under the support of the shaft body connecting block, until it is inclined to 45° and stopped, at this time, the two turnover frames on the front and back sides limit the positions of the front and back wheels of the vehicle, and cooperate with the main body of the weighbridge to complete the measurement of the vehicle.

[0017] Through the above setting and process, the structure has the following beneficial effects:

[0018] Through cooperation of the rack, the middle gear, the variable position limiting frame and the turnover frame, the structure can adjust the spacing of the limiting structure according to the wheel track of the measured automobile, so that accurate limiting is realized, and the universality and practicability of the structure are improved, so that most vehicles can be limited. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a main body internal section structure schematic view of the utility model;

[0021] Figure 3 It is a shaft connecting block connecting position structure schematic view of the utility model;

[0022] Figure 4 It is a main body side end structure schematic view of the utility model.

[0023] In the drawing: 1, main body of the weighbridge; 101, middle gear; 102, rack; 2, non-slip pad; 3, motor; 4, variable position limiting frame; 401, shaft connecting block; 402, turnover frame; 403, sleeve; 5, hydraulic cylinder. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] In the embodiment: a limiting mechanism of automobile weighing apparatus, including the main body of the weighbridge 1, the non-slip pad 2, the motor 3, the non-slip pad 2 is arranged on the upper surface of both sides of the main body of the weighbridge 1, and the motor 3 is arranged inside the main body of the weighbridge 1.

[0026] The upper end of both sides of the main body of the weighbridge 1 is provided with the variable position limiting frame 4, and the middle part of the variable position limiting frame 4 is provided with the hydraulic cylinder 5.

[0027] The main body of the weighbridge 1 further includes the middle gear 101 and the rack 102, the middle gear 101 is movably connected to the upper end of the motor 3, and the tooth groove of the rack 102 is engaged with the middle gear 101.

[0028] In this embodiment, the outer periphery of the intermediate gear 101 is provided with two sets of racks 102, and the outer ends of the two sets of racks 102 are fixedly connected with the displacement limiting frame 4 respectively; the displacement limiting frame 4 further comprises a shaft body connecting block 401, a turnover frame 402 and a sleeve 403, the shaft body connecting block 401 is movably connected between the turnover frame 402 and the side wall of the displacement limiting frame 4, and a shaft body structure is arranged at the connecting position of the turnover frame 402 and the shaft body connecting block 401 and penetrates the connecting position.

[0029] Specifically, as shown in Figure 1 and Figure 4 , the shaft body structure penetrating the connecting position of the turnover frame 402 and the shaft body connecting block 401 bears the rotation of the turnover frame 402 and provides close connection.

[0030] In this embodiment, the sleeve 403 is movably connected to the bottom end of the turnover frame 402 and is embedded by the columnar structure at the upper end of the hydraulic cylinder 5; the middle part of the displacement limiting frame 4 is provided with a groove structure, the bottom end is penetrated by the hydraulic cylinder 5, and the outer wall end faces of the two sides are provided with rectangular groove structures.

[0031] Specifically, as shown in Figure 2 and Figure 3 , the rectangular grooves provided at the side ends of the displacement limiting frame 4 accommodate the embedding and connection of the two side ends of the rack 102, and the upper end of the turnover frame 402 remains horizontal with the load cell body 1 after being embedded in the inner side of the displacement limiting frame 4.

[0032] In this embodiment, the groove structure provided in the middle part of the displacement limiting frame 4 is consistent with the shape of the turnover frame 402, and the turnover frame 402 is embedded in the groove when it is in the inactivated state; the inside of the sleeve 403 is further provided with a ball joint and a bearing structure, and the turnover frame 402 can be rotated to 45° at most under the support of the ball joint and the bearing structure.

[0033] The working principle and use process of the utility model are as follows: when the structure is used, the operator controls the motor 3 and the hydraulic cylinder 5 through an external control unit, measures the wheel track of the vehicle before the vehicle drives onto the load cell body 1, then controls the motor 3 to drive the intermediate gear 101 to rotate, the intermediate gear 101 drives the two racks 102 to move when rotating, the moving directions of the two racks 102 are opposite, thereby driving the two displacement limiting frames 4 to move synchronously, the displacement limiting frame 4 drives the hydraulic cylinder 5 installed at the lower end to move, until the distance between the two displacement limiting frames 4 is consistent with the wheel track of the vehicle, then the vehicle can drive onto the load cell body 1, the hydraulic cylinder 5 is controlled to be lifted and the turnover frame 402 is driven to rotate under the support of the shaft body connecting block 401, until it is inclined to 45° and then stops, at this time, the two turnover frames 402 on the front and back sides limit the positions of the front and back wheels of the vehicle, and cooperate with the load cell body 1 to complete the measurement of the vehicle.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A limiting mechanism for a vehicle weighing scale, comprising a weighbridge body (1), an anti-slip pad (2), and a motor (3), wherein the anti-slip pad (2) is disposed on the upper surfaces of both sides of the weighbridge body (1), and the motor (3) is disposed inside the weighbridge body (1), characterized in that: The weighbridge body (1) is provided with displacement limiting frames (4) on both upper sides, and a hydraulic cylinder (5) is provided in the middle of the displacement limiting frame (4). The weighbridge body (1) also includes a center gear (101) and a rack (102). The center gear (101) is movably connected to the upper end of the motor (3), and the tooth groove of the rack (102) meshes with the center gear (101).

2. The limiting mechanism of a vehicle weighing scale according to claim 1, characterized in that: The center gear (101) is provided with two sets of racks (102) on its periphery, and the outer ends of the two sets of racks (102) are respectively fixedly connected to the displacement limiting frame (4).

3. The limiting mechanism of a vehicle weighing scale according to claim 1, characterized in that: The displacement limiting frame (4) also includes a shaft connecting block (401), a flipping frame (402), and a sleeve (403). The shaft connecting block (401) is movably connected between the flipping frame (402) and the side wall of the displacement limiting frame (4). A shaft structure is provided through the connection between the flipping frame (402) and the shaft connecting block (401).

4. The limiting mechanism of a vehicle weighing scale according to claim 3, characterized in that: The sleeve (403) is movably connected to the bottom end of the tilting frame (402) and is embedded in the columnar structure at the upper end of the hydraulic cylinder (5).

5. The limiting mechanism of a vehicle weighing scale according to claim 1, characterized in that: The displacement limiting frame (4) has a groove structure in the middle and is penetrated by a hydraulic cylinder (5) at the bottom, while rectangular groove structures are provided on both outer wall surfaces.

6. The limiting mechanism of a vehicle weighing scale according to claim 5, characterized in that: The groove structure in the middle of the displacement limiting frame (4) is consistent with the shape of the flipping frame (402), and the flipping frame (402) is embedded in the groove when it is not in use.

7. The limiting mechanism of a vehicle weighing scale according to claim 3, characterized in that: The sleeve (403) is also equipped with a ball joint and a bearing structure inside, and under its support, the tilting frame (402) can rotate up to 45°.

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