Weighing device

Abstract

The utility model provides a weighing device, which belongs to the technical field of vehicle weighing equipment, and comprises a pit slot arranged in a vehicle inlet channel, a plurality of pressure sensors arranged in the pit slot, a bearing platform arranged at the tops of the pressure sensors, a receiving groove arranged at the top in the pit slot, and a pair of insertion frames arranged at the upper part of the notch of the receiving groove, according to the utility model, the positioning bolts penetrate through the threaded holes and are fixed in the sealing frames, so that the bearing grooves and the sealing grooves are connected and fixed, and the sealing effect is improved; at the moment, the lower surface of the sealing groove and the upper surface of the bearing groove are attached and sealed, then the positioning frame is matched with the positioning groove in a sealed mode, the bearing platform seals the top of the sealing groove, therefore, multi-layer sealing protection is conducted on the pressure sensor in the pit groove, dust attack to the pressure sensor is reduced, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle weighing equipment technical field, concretely relates to a weighing device. BACKGROUND

[0002] The weighing detection device in prior art is mostly installed on the vehicle access channel of toll station, a pit is excavated in the vehicle access channel, a stainless steel pit groove is arranged in the pit, pressure sensors are installed in the stainless steel pit groove at intervals, a bearing platform is installed on the pressure sensors, vehicles drive through the bearing platform, the piezoelectric material (such as quartz crystal, piezoelectric ceramic) at the bottom of the bearing platform and the pressure sensors are used to convert the wheel axle pressure into electric signals, and the vehicle information is analyzed through signal processing algorithm, and the load information of the vehicle is measured.

[0003] However, in the use process, since the toll station is mostly located in a poor environment, the surrounding environment is easy to be damp and invaded by dust, and the conventional pit weighing device mostly has weak sealing performance, so that the pit weighing device is easy to be invaded by dust, and the service life of the pressure sensor in the pit groove is reduced. UTILITARIAN CONTENT

[0004] Therefore, the utility model provides a weighing device, the positioning bolt is connected and fixed with the sealing frame through the threaded hole, the receiving groove is connected and fixed with the sealing groove, the lower surface of the sealing groove is sealed with the upper surface of the receiving groove, the positioning frame is sealed and matched with the positioning groove, the bearing platform seals the top of the sealing groove, the pressure sensor in the pit groove is protected by multilayer sealing, the pressure sensor is less invaded by dust, and the service life of the equipment is improved.

[0005] In order to solve the above technical problems, the utility model provides a weighing device, which comprises a guard post arranged on both sides of a vehicle access channel, a pit groove arranged at the bottom between the guard posts, a plurality of pressure sensors arranged in the pit groove, a bearing platform arranged at the top of the pressure sensors, a receiving groove arranged at the top in the pit groove, the receiving groove being in the shape of a Chinese character Wang, a pair of plug-in frames arranged on the upper part of the groove opening of the receiving groove, each plug-in frame being matched with half of the receiving groove, a sealing groove arranged on each plug-in frame, a bearing platform arranged at the upper part of each sealing groove, a plurality of buffer assemblies arranged at the bottom of the bearing platform, and each buffer assembly being connected with the coaxial corresponding pressure sensor.

[0006] The top of the receiving groove is at the same height as the top of the pit groove, and the upper pressing plate of the pressure sensor is at the same height as the top of the pit groove.

[0007] The bottom of the groove is provided with a sealing frame, the sealing frame is embedded in the threaded hole, the sealing frame is in the shape of a square frame, the bottom of each sealing groove is provided with a plurality of threaded holes near one side of the abutment, the threaded holes are used for installing positioning bolts, each threaded hole penetrates the insertion frame and the receiving groove and is embedded in the sealing frame, and each threaded hole is provided with a positioning bolt, the positioning bolt is used for reinforcing the connection after the insertion frame is inserted into the receiving groove, and at this time, the lower surface of the sealing groove is sealed with the upper surface of the receiving groove.

[0008] A plurality of openings are provided through the bottom of the sealing groove, the openings are used for communication between the inside of the sealing groove and the inside of the pit, each opening corresponds to the upper pressure plate of the pressure sensor, and the size of the opening is consistent with the size of the upper pressure plate of the pressure sensor.

[0009] Each buffer assembly includes a buffer block, each buffer block is connected to the top of the corresponding pressure sensor upper pressure plate, the buffer block is used to reduce the instantaneous impact force on the pressure sensor upper pressure plate, thereby prolonging the service life of the pressure sensor, the upper part of each buffer block is provided with a pressure column, the pressure column is used to connect the buffer block and the buffer plate, so that the upper pressure plate of the pressure sensor is in contact with the buffer plate, and the force received by the buffer plate can be transmitted to the pressure sensor through the pressure column, each pressure column penetrates the opening, and each pressure column is provided with a buffer plate at the upper end, the buffer plate is used to enlarge the stress area of the pressure column, so that when the vehicle passes through the bearing platform, the force can be transmitted to the pressure column through the buffer plate, and then transmitted to the pressure sensor, so that the pressure sensor can measure the load when the vehicle passes.

[0010] A positioning groove is formed in the top wall of each sealing groove, the positioning groove is used to receive a positioning frame, so that the top of the bearing platform is sealed, a positioning frame is arranged at the top of each positioning groove, the positioning frame is used to be inserted into the positioning groove, so that the bearing platform and the sealing groove are integrated, each positioning frame is sealed and matched with the positioning groove, and the positioning frame is connected to the bottom of the corresponding bearing platform.

[0011] A handle is arranged at each corner of the top of each bearing platform, and the handle facilitates separation of the bearing platform and the sealing groove.

[0012] Each sealing groove is provided with a sealing plate, the sealing plate is used to seal the gap between the sealing groove and the abutment, the sealing plate is in the shape of a concave letter, and the outer wall of each sealing plate is in contact with the abutment.

[0013] Compared with the prior art, the application has at least one of the following beneficial technical effects:

[0014] 1、Through the insertion of the insertion frame into the receiving groove, the positioning bolt is connected and fixed with the sealing frame through the threaded hole, and then the receiving groove is connected and fixed with the sealing groove, at this time the lower surface of the sealing groove is sealed with the upper surface of the receiving groove, and then the positioning frame is sealed and matched with the positioning groove, and then the load platform seals the top of the sealing groove, thereby the pressure sensor in the pit groove is protected by multiple layers of sealing, the pressure sensor is less affected by dust, and the service life of the pressure sensor is prolonged.

[0015] 2、The handle facilitates personnel to separate the load platform and the sealing groove, the sealing plate is used for sealing the gap between the sealing groove and the guard pier, the sealing plate is in a concave shape, the notches on the two sealing plates correspond, and then the receiving groove and the sealing groove are wrapped.

[0016] 3、The buffer block is used for reducing the instantaneous impact force of the upper pressing plate of the pressure sensor, thereby prolonging the service life of the pressure sensor, the buffer block is provided with a pressure sensing layer, when the compression amount of the buffer material exceeds a threshold value, an alarm can be triggered to replace, damage of the pressure sensor caused by buffer failure is avoided, and the pressure column is used for connecting the buffer block and the buffer plate, so that the upper pressing plate of the pressure sensor is in contact with the buffer plate, and the force received by the buffer plate can be transmitted to the pressure sensor through the pressure column. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the main structure of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 It is a schematic view of the main structure of the utility model Figure 2 ;

[0020] Figure 4 It is a schematic view of the main structure of the utility model Figure 2 ;

[0021] The reference signs are explained as follows: 100, guard pier; 101, pit groove; 102, pressure sensor; 103, load platform; 200, receiving groove; 201, insertion frame; 202, sealing frame; 203, positioning bolt; 204, threaded hole; 300, sealing groove; 301, positioning groove; 302, positioning frame; 400, buffer assembly; 401, opening; 402, buffer block; 403, pressure column; 404, buffer plate; 500, handle; 501, sealing plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the following will be combined with the drawings of the embodiments of the utility model to make a detailed description. Figures 1-4The technical solutions of the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.

[0023] As Figures 1-4 The utility model discloses a kind of weighing devices, including the guard pier 100 of setting of both sides of access channel, the pit groove 101 of setting in the bottom between guard pier 100, pit groove 101 uses stainless steel material, multiple pressure sensors 102 are provided in pit groove 101, pressure sensor 102 includes lower pressing plate, upper pressing plate, lower pressing head, upper pressing head, sensor, wire and screw nut, load bearing platform 103 is collectively provided in the top of pressure sensor 102, load bearing platform 103 uses stainless steel material, receiving groove 200 is provided in the top in pit groove 101, receiving groove 200 uses stainless steel material, receiving groove 200 is horizontally Wang character shape, the slot of the middle part of receiving groove 200 is two times of side slot size, a pair of insertion frame 201 is provided on the upper portion of the slot of receiving groove 200, each insertion frame 201 is adapted with half of receiving groove 200, one sealing groove 300 is provided on each insertion frame 201, sealing groove 300 uses stainless steel material, one load bearing platform 103 is provided on the upper portion of each sealing groove 300, multiple buffer assemblies 400 are provided in the bottom of load bearing platform 103, except the position of buffer assembly 400, load bearing platform 103 is provided with several damping shock absorbers, buffer assembly 400 is used to slow down the instantaneous pressure that pressure sensor 102 receives, to improve equipment service life, each buffer assembly 400 is connected with coaxial corresponding pressure sensor 102.

[0024] In use, by inserting frame 201 is inserted into receiving groove 200, and then make positioning bolt 203 be connected and fixed with sealing frame 202 through thread hole 204, and then make receiving groove 200 be connected and fixed with sealing groove 300, at this time, the lower surface of sealing groove 300 is sealed with the upper surface of receiving groove 200, and then make load bearing platform 103 seal the top of sealing groove 300, to carry out multilayer sealing protection to the pressure sensor 102 in pit groove 101, reduce the invasion of dust to pressure sensor 102, to improve the service life of pressure sensor 102.

[0025] The utility model provides a kind of weighing device,

[0026] As Figure 1 、 2, 3: the top of the receiving groove 200 is at the same height as the top of the pit groove 101, the upper pressing plate of the pressure sensor 102 is at the same height as the top of the pit groove 101, the receiving groove 200 is welded to the top of the pit groove 101, the bottom of the slot of the receiving groove 200 is provided with a sealing frame 202, the size of the sealing frame 202 is consistent with the size of the slot of the receiving groove 200, the sealing frame 202 is welded to the bottom of the receiving groove 200, the sealing frame 202 is embedded in the threaded hole 204, the sealing frame 202 is in the shape of a square box, the bottom of each sealing groove 300 is provided with a plurality of threaded holes 204 near one side of the guard pier 100, the threaded holes 204 are used to install positioning bolts 203, the positioning bolts 203 are threadedly connected with the threaded holes 204, each threaded hole 204 passes through the insertion frame 201 and the receiving groove 200 and is embedded in the sealing frame 202, each threaded hole 204 is provided with a positioning bolt 203, the positioning bolt 203 is installed with a sealing gasket, and the positioning bolt 203 is used to reinforce the connection of the insertion frame 201 inserted into the receiving groove 200, and at this time the lower surface of the sealing groove 300 is sealed with the upper surface of the receiving groove 200.

[0027] The effect is that the sealing frame 202 is embedded in the threaded hole 204, the threaded hole 204 is used to install the positioning bolt 203, and the positioning bolt 203 is used to reinforce the connection of the insertion frame 201 inserted into the receiving groove 200, and at this time the lower surface of the sealing groove 300 is sealed with the upper surface of the receiving groove 200.

[0028] As shown in Figure 2 , 3 , 4: the bottom of the sealing groove 300 is provided with a plurality of openings 401, the openings 401 are used to communicate the inside of the sealing groove 300 with the inside of the pit groove 101, each opening 401 corresponds to the upper pressing plate of the pressure sensor 102, and the size of the opening 401 is consistent with the size of the upper pressing plate of the pressure sensor 102.

[0029] The effect is that the opening 401 is used to communicate the inside of the sealing groove 300 with the inside of the pit groove 101.

[0030] As shown in Figure 2 , 3As shown in FIG. 4, each buffer assembly 400 includes a buffer block 402, each buffer block 402 is connected to the top of the upper pressing plate of the corresponding pressure sensor 102, the buffer block 402 can be made of polyurethane, the buffer block 402 is internally provided with a groove for accommodating a pressing column 403, the buffer block 402 is used to reduce the instantaneous impact force received by the upper pressing plate of the pressure sensor 102, thereby improving the service life thereof, the buffer block 402 is internally provided with a pressure sensing layer, when the compression amount of the buffer material exceeds a threshold value, an alarm can be triggered to prompt replacement, thereby avoiding damage to the pressure sensor 102 due to buffer failure, the upper portion of each buffer block 402 is centrally provided with a pressing column 403, the pressing column 403 can be made of stainless steel, the pressing column 403 is weldedly connected to the load-bearing platform 103, the pressing column 403 is used to connect the buffer block 402 to the buffer plate 404, thereby enabling the upper pressing plate of the pressure sensor 102 to be in contact with the buffer plate 404, enabling the force received by the buffer plate 404 to be transmitted to the pressure sensor 102 through the pressing column 403, each pressing column 403 passes through the opening 401, and the upper end of each pressing column 403 is provided with a buffer plate 404, the buffer plate 404 can be made of polyurethane or natural rubber, the lower surface of the buffer plate 404 is in abutment with the inner bottom wall of the sealing groove 300, and the top of the buffer plate 404 is fixedly connected to the bottom of the load-bearing platform 103 through hot melting or bolting, the buffer plate 404 is used to expand the force receiving area of the pressing column 403, enabling the buffer plate 404 to transmit the force to the pressing column 403 when a vehicle passes through the load-bearing platform 103, and the force is further transmitted to the buffer block 402, and then transmitted to the pressure sensor 102 through the buffer block 402, thereby enabling the pressure sensor 102 to measure the load of the vehicle passing therethrough.

[0031] Effects: the buffer block 402 is used to reduce the instantaneous impact force received by the upper pressing plate of the pressure sensor 102, thereby improving the service life thereof, the buffer block 402 is internally provided with a pressure sensing layer, when the compression amount of the buffer material exceeds a threshold value, an alarm can be triggered to prompt replacement, thereby avoiding damage to the pressure sensor 102 due to buffer failure, and the pressing column 403 is used to connect the buffer block 402 to the buffer plate 404, thereby enabling the upper pressing plate of the pressure sensor 102 to be in contact with the buffer plate 404, enabling the force received by the buffer plate 404 to be transmitted to the pressure sensor 102 through the pressing column 403.

[0032] As Figure 2 , 3As shown in Figure 4: Each sealing groove 300 has a positioning groove 301 on its top groove wall. The sealing groove 300 is made of stainless steel. The positioning groove 301 is used to receive the positioning frame 302, so that the load-bearing platform 103 seals the top of the sealing groove 300. Each positioning groove 301 has a positioning frame 302 on its top. The positioning frame 302 is made of stainless steel. The positioning frame 302 is used to insert into the positioning groove 301, so that the load-bearing platform 103 and the sealing groove 300 are connected as one unit. Each positioning frame 302 is sealed and adapted to the positioning groove 301. The positioning frame 302 is welded to the bottom of its corresponding load-bearing platform 103.

[0033] Its effect is as follows: the positioning frame 302 is inserted into the positioning groove 301, thereby connecting the load-bearing platform 103 and the sealing groove 300 into one unit; the positioning groove 301 is used to receive the positioning frame 302, thereby sealing the top of the sealing groove 300 by the load-bearing platform 103.

[0034] like Figure 1 , 2 As shown in Figure 3: Each load-bearing platform 103 has a handle 500 at each of its four top corners. The handle 500 can be fixed to the top of the load-bearing platform 103 by bolts or welding. The handle 500 facilitates the separation of the load-bearing platform 103 from the sealing groove 300. Each sealing groove 300 has a sealing plate 501 on its outer wall. The sealing plate 501 is made of stainless steel and is used to seal the gap between the sealing groove 300 and the guard pier 100. The sealing plate 501 is U-shaped, and the recesses on the two sealing plates 501 correspond to each other, thereby wrapping the receiving groove 200 and the sealing groove 300. The outer wall of each sealing plate 501 is in close contact with the guard pier 100.

[0035] Its effects are as follows: the handle 500 facilitates the separation of the load-bearing platform 103 from the sealing groove 300, and the sealing plate 501 is used to seal the gap between the sealing groove 300 and the guard pier 100. The sealing plate 501 is U-shaped, and the recesses on the two sealing plates 501 correspond to each other, thereby wrapping the receiving groove 200 and the sealing groove 300.

[0036] Working principle: the instantaneous impact force on the upper pressing plate of the pressure sensor 102 is reduced through the buffer block 402, thereby prolonging the service life of the pressure sensor 102; the pressure sensing layer is built in the buffer block 402, when the compression amount of the buffer material exceeds the threshold value, an alarm can be triggered to replace, avoiding damage to the pressure sensor 102 due to buffer failure; the buffer block 402 is connected with the buffer plate 404 through the pressure column 403, so that the upper pressing plate of the pressure sensor 102 is in contact with the buffer plate 404, the force received by the buffer plate 404 can be transmitted to the pressure sensor 102 through the pressure column 403, so that the pressure sensor 102 can measure the load when the vehicle passes, thereby prolonging the service life of the pressure sensor 102; the positioning bolt 203 is connected and fixed with the sealing frame 202 through the threaded hole 204 by inserting the plug-in frame 201 into the receiving groove 200, and then the receiving groove 200 is connected and fixed with the sealing groove 300, at this time the lower surface of the sealing groove 300 is in close contact with the upper surface of the receiving groove 200, and then the positioning frame 302 is sealed and matched with the positioning groove 301, and then the load bearing platform 103 seals the top of the sealing groove 300, thereby sealing and protecting the pressure sensor 102 in the pit groove 101, reducing the invasion of dust on the pressure sensor 102, thereby prolonging the service life of the pressure sensor 102.

[0037] In addition, it should be further pointed out that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principle of the present application, some improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A weighing device, comprising guardrails (100) arranged on both sides of a vehicle access road, a pit (101) arranged at the bottom between the guardrails (100), a plurality of pressure sensors (102) arranged in the pit (101), and a load-bearing platform (103) arranged on the top of the pressure sensors (102), characterized in that: At the top inside the pothole (101), there is a receiving groove (200). The receiving groove (200) is in the shape of a Chinese character 'wang'. At the upper part of the notch of the receiving groove (200), there is a pair of insertion frames (201). Each insertion frame (201) is adapted to half of the receiving groove (200). On each insertion frame (201), there is a sealing groove (300). At the upper part of each sealing groove (300), there is a load-bearing platform (103). At the bottom of the load-bearing platform (103), there are multiple buffer components (400). Each buffer component (400) is connected to the corresponding pressure sensor (102) coaxially.

2. The weighing device as described in claim 1, characterized in that: The top of the receiving groove (200) is at the same height as the top of the pothole (101), and the upper pressing plate of the pressure sensor (102) is at the same height as the top of the pothole (101).

3. A weighing device as described in claim 2, characterized in that: At the bottom of the notch of the receiving groove (200), there is a sealing frame (202). The sealing frame (202) is in the shape of a square box. On one side of the bottom of each sealing groove (300) close to the pier (100), there are multiple threaded holes (204). Each threaded hole (204) passes through the insertion frame (201) and the receiving groove (200) and is embedded in the sealing frame (202). In each threaded hole (204), there is a positioning bolt (203).

4. A weighing device as described in claim 3, characterized in that: At the bottom of the sealing groove (300), there are multiple openings (401) penetrating through. Each opening (401) corresponds to the upper pressing plate of the pressure sensor (102).

5. A weighing device as described in claim 4, characterized in that: Each buffer component (400) includes a buffer block (402). Each buffer block (402) is connected to the top of the upper pressing plate of the pressure sensor (102). In the middle of the upper part of each buffer block (402), there is a pressure column (403). Each pressure column (403) passes through the opening (401). At the upper end of each pressure column (403), there is a buffer plate (404).

6. A weighing device as described in claim 5, characterized in that: On the top groove wall of each sealing groove (300), there is a positioning groove (301). At the top of each positioning groove (301), there is a positioning frame (302). Each positioning frame (302) is hermetically adapted to the positioning groove (301). The positioning frame (302) is connected to the bottom of the corresponding load-bearing platform (103).

7. A weighing device as described in claim 6, characterized in that: At the four corners of the top of each load-bearing platform (103), there is a handle (500).

8. A weighing device as described in claim 7, characterized in that: On the outer wall of each sealing groove (300), there is a sealing plate (501). The sealing plate (501) is in the shape of an inverted 'U'. The outer wall of each sealing plate (501) is in contact with the pier (100).

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