Weighbridge weighing sensing device

Abstract

The utility model discloses a wagon balance weighing sensing device which comprises a weighing sensor, moving seats, a fixed seat, an elastic compression assembly and an elastic stretching assembly, the two moving seats are symmetrically and fixedly arranged on the left side and the right side of the weighing sensor, and two sliding seats are fixedly arranged on the bottom surfaces of the two moving seats; the fixing seat is provided with sliding holes in one-to-one correspondence with the two sliding seats, the two sliding seats are in sliding fit with the two sliding holes, the front side wall of the fixing seat is provided with two first through holes collinear with the center lines of the two sliding holes, and the rear side wall of the fixing seat is provided with two second through holes collinear with the center lines of the two sliding holes; the front end of the elastic compression assembly is fixedly arranged on the front side wall of the fixing base, and the rear end penetrates through the first through hole and abuts against the front side wall of the sliding base. The rear end of the elastic stretching assembly is fixedly arranged on the rear side wall of the fixing base, and the front end of the elastic stretching assembly penetrates through the second through hole and is connected to the rear side wall of the sliding base. The weighbridge weighing sensing device improves unbalance loading resistance and long-term stability of a weighing system.

Description

Technical Field

[0001] This invention relates to the field of weighing sensor technology, and in particular to a weighbridge weighing sensor device and weighbridge system with a horizontal buffer function. Background Technology

[0002] In traditional weighbridge weighing processes, when a vehicle enters the weighing platform at low speed, factors such as braking inertia, S-shaped driving, or jumping over the scale generate horizontal impact forces. These impact forces create lateral loads on the load cells. Current technologies primarily focus on vertical impact protection for the load cells, such as using spring assemblies to absorb vertical loads. However, they lack effective protection against horizontal forces, leading to the following problems:

[0003] First, due to their structural characteristics, column-type sensors are insufficiently resistant to lateral forces and are easily affected by lateral interference, leading to increased off-center load errors and even sensor rotation. Prolonged use may cause cable entanglement or breakage. Second, while bridge-type sensors have better off-center load resistance, extreme horizontal displacement can still cause pressure head offset, affecting measurement accuracy. Furthermore, traditional four-corner eight-position collision limit devices rely on bolt gap adjustment; however, changes in ambient temperature causing the scale body to expand and contract can easily lead to inaccurate limit gaps. If the gap is too small, the scale body may jam; if the gap is too large, it will exacerbate horizontal swaying, further affecting weighing stability.

[0004] In summary, existing weighbridge systems have significant shortcomings in terms of horizontal impact protection, sensors are susceptible to lateral force interference, limit systems have poor reliability, and equipment failure rates are high. Utility Model Content

[0005] In view of this, the present invention proposes a weighbridge weighing sensor device capable of resisting horizontal impacts and a weighbridge, so as to provide horizontal protection for the sensor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A weighbridge weighing sensing device includes a weighing sensor, and further includes: two movable seats, which are mirror-symmetrically fixed to the lower sidewalls of the left and right sides of the weighing sensor, and two sliding seats are fixed parallel to the bottom surfaces of the two movable seats; a fixed seat, in which sliding holes corresponding to the two sliding seats are opened parallel to each other along the length direction of the middle part, and the two sliding seats slide in cooperation with the two sliding holes; the front sidewall of the fixed seat has two first through holes collinear with the center lines of the two sliding holes, and the rear sidewall of the fixed seat has two second through holes collinear with the center lines of the two sliding holes; an elastic compression component, corresponding to the through holes, with the front end of the elastic compression component fixed to the front sidewall of the fixed seat and the rear end passing through the first through hole and abutting against the front sidewall of the sliding seat; and an elastic tension component, corresponding to the through holes, with the rear end of the elastic tension component fixed to the rear sidewall of the fixed seat and the front end passing through the second through hole and connected to the rear sidewall of the sliding seat.

[0008] To better achieve the above technical solution, optionally, the cross-section of the slide block is an inverted T-shape, and the top surface of the bottom horizontal part of the slide block slides and mates with the bottom surface of the fixed seat.

[0009] Optionally, the movable seat includes a horizontal plate and a right-angled plate, wherein the two right-angled sidewalls of the right-angled plate are respectively fixed to the sidewall of the weighing sensor and the top surface of the horizontal plate.

[0010] Optionally, the movable seat and the corresponding slide are provided with at least two coaxial connecting holes, and the connecting holes are provided with connecting bolts connecting the movable seat and the corresponding slide.

[0011] Optionally, the side portion of the fixing seat has at least two mounting holes that avoid the through hole, and each mounting hole is provided with a fixing bolt.

[0012] Optionally, the elastic compression assembly includes a first end plate and an elastic compression rod fixed to the center of the rear sidewall of the first end plate. The first end plate is fixed to the front sidewall of the fixed seat by fastening bolts, and the rear moving end of the elastic compression rod abuts against the front sidewall of the slide.

[0013] Optionally, the front sidewall of the slide is provided with a positioning groove that mates with the rear moving end of the elastic compression rod.

[0014] Optionally, the elastic tension assembly includes a second end plate and an elastic tension rod fixed to the center of the front sidewall of the second end plate. The second end plate is fixed to the rear sidewall of the fixed seat by screws, and the front movable end of the elastic tension rod is fixed to the rear sidewall of the slide.

[0015] The beneficial effects of this utility model are:

[0016] This utility model discloses a weighbridge weighing sensor device. Through the sliding cooperation between the sliding base and the sliding hole, and the bidirectional linkage mechanism of the elastic compression component and the elastic tension component, when the weighing sensor is subjected to a horizontal front-back impact, the weighing sensor can move slightly forward with the weighbridge. During the forward movement of the weighing sensor, the elastic compression component is compressed and the elastic tension component is stretched, thereby achieving elastic buffering. This offsets the impact force in the horizontal front-back direction, improves the anti-eccentric load capacity and long-term stability of the weighbridge weighing sensor device, and thus extends the service life of the weighing sensor. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a weighbridge weighing sensor device according to Embodiment 1 of this utility model;

[0018] Figure 2 yes Figure 1 Exploded view;

[0019] Figure 3 yes Figure 1 Front view of the elastic compression component;

[0020] Figure 4 yes Figure 1 Front view of the elastic tension component;

[0021] Figure 5 This is a front view of a weighbridge according to Embodiment 2 of this utility model;

[0022] Figure label:

[0023] Weighbridge weighing sensor 10, weighing sensor 11, movable base 12, horizontal plate 121, right-angle plate 122, connecting bolt 123, sliding base 13, positioning groove 131, fixed base 14, sliding hole 141, mounting hole 142, elastic compression assembly 15, first end plate 151, elastic compression rod 152, elastic tension assembly 16, second end plate 161, elastic tension rod 162, weighbridge base 20, mounting base 30. Detailed Implementation

[0024] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Identical components are indicated by the same reference numerals.

[0025] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Identical components are indicated by the same reference numerals.

[0026] Example 1

[0027] Please see Figures 1 to 4This utility model discloses a weighbridge weighing sensing device 10, which includes a weighing sensor 11, a movable base 12, a fixed base 14, an elastic compression component 15, and an elastic tension component 16.

[0028] Among them, the weighing sensor 11 is the prior art, which can be a column-type weighing sensor or a bridge-type weighing sensor. There are two movable seats 12. The upper parts of the two movable seats 12 are fixedly fixed in a mirror-symmetrical manner on the lower sidewalls of the left and right sides of the weighing sensor 11. The bottom surfaces of the two movable seats 12 are fixedly mounted with two sliding seats 13 in parallel.

[0029] In an embodiment of this utility model, the movable seat 12 includes a horizontal plate 121 and a right-angled plate 122. The two right-angled sidewalls of the right-angled plate 122 are fixedly connected to the sidewall of the weighing sensor 11 and the top surface of the horizontal plate 121, respectively. Specifically, the right-angled plate 122, the weighing sensor 11, and the horizontal plate 121 are an integral structure.

[0030] like Figure 2 As shown, the fixed base 14 has parallel sliding holes 141 in the middle of its length direction, which correspond one-to-one with the two sliding blocks 13. That is, the sliding holes 141 are two shaped grooves. The two sliding blocks 13 and the two sliding holes 141 are slidably fitted. The front side wall of the fixed base 14 has two first through holes that are collinear with the center line of the two sliding holes 141. The rear side wall of the fixed base 14 has two second through holes that are collinear with the center line of the two sliding holes 141. That is, the two first through holes and the two second through holes are coaxial.

[0031] like Figure 1 and Figure 2 As shown, there are two elastic compression components 15, and the front ends of the two elastic compression components 15 are fixed to the front side wall of the fixed base 14, and the rear ends pass through the first through hole and abut against the front side wall of the slide 13; there are two elastic tension components 16, and the rear ends of the two elastic tension components 16 are fixed to the rear side wall of the fixed base 14, and the front ends pass through the second through hole and are connected to the rear side wall of the slide 13.

[0032] According to an embodiment of the present invention, a weighbridge weighing sensor 10, through the sliding engagement of the slide block 13 and the sliding hole 141, and the bidirectional linkage mechanism of the elastic compression component 15 and the elastic tension component 16, allows the weighing sensor 11 to move slightly forward with the weighbridge when subjected to an impact in the horizontal front-back direction. During the forward movement of the weighing sensor 11, the elastic compression component 15 is compressed and the elastic tension component 16 is stretched, thereby achieving elastic buffering, thus offsetting the impact force in the horizontal front-back direction, and thereby improving the service life of the weighing sensor 11.

[0033] In an embodiment of this utility model, the movable seat 12 and the corresponding slide 13 are provided with at least two coaxial connecting holes, preferably two, and are spaced apart. The connecting holes are provided with connecting bolts 123 for connecting the movable seat 12 and the corresponding slide 13. The movable seat 12 and the slide 13 are connected by the connecting bolts 123, which facilitates the installation of the slide 13 in the sliding hole 141.

[0034] In an embodiment of this utility model, the side portion of the fixing seat 14 is provided with at least two mounting holes 142, preferably four, avoiding the through hole. Each mounting hole 142 is provided with a fixing bolt, and the fixing seat 14 is fixed on the horizontal surface by using the fixing bolts passing through the mounting holes 142.

[0035] In an embodiment of this utility model, the slide 13 has an inverted T-shaped cross section. The top surface of the bottom horizontal part of the slide 13 slides and fits against the bottom surface of the fixed seat 14. The slide 13 with the inverted T-shaped structure can only move back and forth, thereby improving the accuracy of the fit.

[0036] like Figure 3 As shown, in an embodiment of this utility model, the elastic compression assembly 15 includes a first end plate 151 and an elastic compression rod 152 fixed to the center of the rear side wall of the first end plate 151. The first end plate 151 is fixed to the front side wall of the fixed seat 14 by fastening bolts, and the rear end of the elastic compression rod 152 abuts against the front side wall of the slide 13.

[0037] Specifically, the elastic compression rod 152 is a spring compression rod. When the elastic compression rod 152 is subjected to a horizontal forward thrust, the elastic compression rod 152 contracts. When the horizontal forward thrust disappears or decreases, the elastic compression rod 152 returns to its original position. The front side wall of the slide block 13 is provided with a positioning groove 131 that cooperates with the rear moving end of the elastic compression rod 152. Placing the rear end of the elastic compression rod 152 in the positioning groove 131 can make the horizontal forward thrust evenly transmitted to the elastic compression rod 152.

[0038] like Figure 4 As shown, in an embodiment of this utility model, the elastic tension assembly 16 includes a second end plate 161 and an elastic tension rod 162 fixed to the center of the front sidewall of the second end plate 161. The second end plate 161 is fixed to the rear sidewall of the fixed seat 14 by screws, and the front movable end of the elastic tension rod 162 is fixed to the rear sidewall of the slide 13.

[0039] Specifically, the rear side wall of the slide 13 and the front movable end of the elastic tension rod 162 are both provided with connecting hooks. The two connecting hooks are connected by a pin, so that the elastic tension assembly 16 and the slide 13 are connected as one unit.

[0040] Example 2

[0041] like Figure 5As shown, this utility model embodiment provides a weighbridge based on embodiment 1, including a weighbridge base 20, with U-shaped mounting seats 30 fixedly connected to the four corners of the weighbridge base 20, and each mounting seat 30 is respectively connected to a weighbridge weighing sensor 10 as described in embodiment 1.

[0042] This utility model provides a weighbridge in which some of the front and rear impact forces generated when a vehicle enters the weighbridge and brakes are absorbed by the elastic deformation of the elastic compression component 15 and the elastic tension component 16, thereby improving the load cell 11's resistance to front and rear impacts and thus extending the service life of the load cell 11.

[0043] The technical solution of this utility model has been described in detail above with reference to specific embodiments. The specific embodiments described are used to help understand the concept of this utility model. Derivations and modifications made by those skilled in the art based on the specific embodiments of this utility model also fall within the protection scope of this utility model.

Claims

1. A weighbridge weighing sensing device (10), comprising a weighing sensor (11), characterized in that, Also includes: Two movable seats (12) are fixedly mounted on the lower sidewalls of the left and right sides of the weighing sensor (11) in a mirror symmetrical manner, and two sliding seats (13) are fixedly mounted on the bottom surface of the two movable seats (12) in parallel. The fixed base (14) has two sliding holes (141) that are parallel to each other along its length direction. The two sliding holes (13) are slidably engaged with the two sliding holes (141). The front side wall of the fixed base (14) has two first through holes that are collinear with the center lines of the two sliding holes (141). The rear side wall of the fixed base (14) has two second through holes that are collinear with the center lines of the two sliding holes (141). The elastic compression component (15) corresponds to the through hole. The front end of the elastic compression component (15) is fixed to the front side wall of the fixed base (14), and the rear end passes through the first through hole and abuts against the front side wall of the slide (13). And an elastic tension component (16), which corresponds to the through hole one by one. The rear end of the elastic tension component (16) is fixed to the rear side wall of the fixed seat (14), and the front end passes through the second through hole and is connected to the rear side wall of the slide (13).

2. The weighbridge weighing sensor (10) according to claim 1, characterized in that, The cross-section of the slide (13) is inverted T-shaped, and the top surface of the bottom horizontal part of the slide (13) slides and fits against the bottom surface of the fixed seat (14).

3. The weighbridge weighing sensor (10) according to claim 2, characterized in that, The movable seat (12) includes a horizontal plate (121) and a right-angle plate (122), and the two right-angle sidewalls of the right-angle plate (122) are fixedly connected to the sidewall of the weighing sensor (11) and the top surface of the horizontal plate (121), respectively.

4. The weighbridge weighing sensor (10) according to claim 1, characterized in that, The movable seat (12) and the corresponding slide (13) are provided with at least two coaxial connecting holes, and the connecting holes are provided with connecting bolts (123) for connecting the movable seat (12) and the corresponding slide (13).

5. The weighbridge weighing sensor (10) according to claim 1, characterized in that, The side portion of the fixing base (14) has at least two mounting holes (142) that are not through the through hole, and each mounting hole (142) is provided with a fixing bolt.

6. The weighbridge weighing sensor (10) according to claim 1, characterized in that, The elastic compression assembly (15) includes a first end plate (151) and an elastic compression rod (152) fixed at the center of the rear side wall of the first end plate (151). The first end plate (151) is fixed to the front side wall of the fixed seat (14) by fastening bolts, and the rear moving end of the elastic compression rod (152) abuts against the front side wall of the slide (13).

7. The weighbridge weighing sensor (10) according to claim 6, characterized in that, The front side wall of the slide (13) is provided with a positioning groove (131) that cooperates with the rear moving end of the elastic compression rod (152).

8. The weighbridge weighing sensor (10) according to claim 1, characterized in that, The elastic tension assembly (16) includes a second end plate (161) and an elastic tension rod (162) fixed at the center of the front side wall of the second end plate (161). The second end plate (161) is fixed to the rear side wall of the fixed seat (14) by screws, and the front movable end of the elastic tension rod (162) is fixed to the rear side wall of the slide (13).

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