阅读说明：本技术 一种称重传感器及称重秤 (Weighing sensor and weighing scale ) 是由 顾荣兵 于 2021-10-08 设计创作，主要内容包括：本发明提供一种称重传感器及称重秤,所述底板上固定设置有外壳体,所述外壳体的顶壁中内嵌设置有第一弹性密封垫,所述下承载板的底部凹面中活动设置有传力球,所述上承载板和下承载板之间设置有外撑结构,使得上承载板和下承载板可以被向相互远离的方向推动；所述弹性结构可拆卸地设置在上承载板和下承载板之间；所述旋转支撑杆上固定设置有放置板,所述外壳体的顶壁中内嵌设置有第二弹性密封垫,所述竖杆远离顶部调节手柄的一端和放置板可活动接触,所述竖杆的侧面固定设置有两个插杆。本发明提供了称重传感器及称重秤,内置有多个弹性结构,且可以在不拆卸打开传感器的情况下进行更换,省时省力,避免精细零件丢失,使得传感器可以具备多种称重精度。(The invention provides a weighing sensor and a weighing scale, wherein a bottom plate is fixedly provided with an outer shell, a first elastic sealing gasket is embedded in the top wall of the outer shell, a force transmission ball is movably arranged in the concave surface of the bottom of a lower bearing plate, and an external support structure is arranged between the upper bearing plate and the lower bearing plate, so that the upper bearing plate and the lower bearing plate can be pushed in the direction away from each other; the elastic structure is detachably arranged between the upper bearing plate and the lower bearing plate; the fixed board of placing that is provided with on the swivelling joint pole, embedded second elastic sealing pad that is provided with in the roof of shell body, the montant is kept away from top adjustment handle's one end and is placed board mobile contact, the side of montant is fixed and is provided with two inserted bars. The invention provides a weighing sensor and a weighing scale, which are internally provided with a plurality of elastic structures, can be replaced under the condition of not disassembling and opening the sensor, are time-saving and labor-saving, avoid the loss of fine parts and enable the sensor to have various weighing precisions.)

1. A load cell, comprising:

the device comprises a bottom plate (1), wherein an outer shell (2) is fixedly arranged on the bottom plate (1), a first elastic sealing gasket (3) is embedded in the top wall of the outer shell (2), an upper bearing plate (4) is fixedly arranged in the middle of the first elastic sealing gasket (3), an upper clamping and embedding structure is fixedly arranged below the upper bearing plate (4), a lower bearing plate (5) is arranged in an inner cavity formed by the outer shell (2) and the bottom plate (1), a lower clamping and embedding structure is fixedly arranged above the lower bearing plate (5), a force transmission ball (7) is movably arranged in the bottom concave surface of the lower bearing plate (5), the bottom end of the force transmission ball (7) is movably arranged in the top concave surface of an inclined base (8), a compression spring (9) is connected between the inclined base (8) and the bottom plate (1), a limiting plate (10) is movably clamped and embedded between the inclined base (8) and the bottom plate (1), a lower adjusting rod (11) is fixedly arranged on the side face of the limiting plate (10), the lower adjusting rod (11) penetrates through the side wall of the outer shell (2), a lower adjusting handle (12) is fixedly arranged at the end part of the lower adjusting rod, and an external support structure is arranged between the upper bearing plate (4) and the lower bearing plate (5), so that the upper bearing plate (4) and the lower bearing plate (5) can be pushed in the direction away from each other;

the elastic structure (6) is detachably arranged between the upper bearing plate (4) and the lower bearing plate (5), the elastic structure (6) comprises an elastic body (601), at least one through groove (602) is formed in the elastic body (601), an upper positioning plate (603) and a lower positioning plate (604) are fixedly arranged at the upper end and the lower end of the elastic body (601) respectively, transverse grooves (605) are formed in the upper positioning plate (603) and the lower positioning plate (604), first protruding blocks (606) are fixedly arranged in the transverse grooves (605), longitudinal clamping grooves (607) are formed in the ends, far away from each other, of the upper positioning plate (603) and the lower positioning plate (604), and second protruding blocks (608) are fixedly arranged in the longitudinal clamping grooves (607); and

rotatory bracing piece (26), rotatory bracing piece (26) are articulated to be set up in the inner chamber that shell body (2) and bottom plate (1) enclose, the fixed board (28) of placing that is provided with on rotatory bracing piece (26), embedded second elastic sealing pad (29) that is provided with in the roof of shell body (2), sealed running through is provided with montant (30) in second elastic sealing pad (29), the fixed top adjustment handle (31) that is provided with in top of montant (30), the one end of top adjustment handle (31) is kept away from in montant (30) and place board (28) mobile contact, the fixed two inserted bars (32) that are provided with in side of montant (30), all fixed third protruding piece (321) that are provided with on inserted bar (32), the fixed stopper (33) that is provided with in top surface of placing board (28).

2. A load cell according to claim 1, wherein: go up inlay card structure and include first protrusion pole (401), first protrusion pole (401) are fixed to be set up in the below of last loading board (4), integrated into one piece is provided with first inlay card piece (402) on first protrusion pole (401).

3. A load cell according to claim 1, wherein: the lower clamping and embedding structure comprises a second protruding rod (501), the second protruding rod (501) is fixedly arranged above the lower bearing plate (5), and a second clamping and embedding block (502) is integrally formed on the second protruding rod (501).

4. A load cell according to claim 1, wherein: and a lower sealing gasket (13) is arranged at the penetrating position of the lower adjusting rod (11) and the outer shell (2).

5. A load cell according to claim 1, wherein: the outer support structure comprises a mounting plate (14), a bearing (15) is embedded in the mounting plate (14), a transmission rod (16) is hinged in the bearing (15), a driven bevel gear (17) is fixedly sleeved on the transmission rod (16), the side surface of the driven bevel gear (17) is engaged with a driving bevel gear (18), an upper adjusting rod (19) is fixedly arranged at the center of one end of the driving bevel gear (18) far away from the driven bevel gear (17), the upper adjusting rod (19) penetrates through the side wall of the outer shell (2), an upper adjusting handle (20) is fixedly arranged at the end part, screw rods (22) are fixedly arranged at both ends of the transmission rod (16), and the surface thread directions of the two lead screws (22) are opposite, nuts (23) are movably arranged on the lead screws (22), and push rods (24) are fixedly arranged on the nuts (23).

6. A load cell according to claim 5, wherein: an upper sealing washer (21) is arranged at the penetrating position of the upper adjusting rod (19) and the outer shell (2).

7. A load cell according to claim 5, wherein: and one ends of the two lead screws (22) far away from the transmission rod (16) are fixedly provided with blocking blocks (25).

8. A load cell according to claim 1, wherein: one end of the rotary supporting rod (26) close to the bottom plate (1) is hinged in a bearing seat (27), and the bearing seat (27) is embedded in the bottom plate (1).

9. A weighing scale, characterized by: a load cell comprising any of the preceding claims 1-8.

Technical Field

The invention relates to the technical field of weighing devices, in particular to a weighing sensor and a weighing scale.

Background

In the prior art, a column-type weighing sensor with the application number of "201620173067. X" includes a column-type elastic body, a housing and a strain gauge, the housing is a truncated cone-shaped structure with a narrow top and a wide bottom, two edge bosses assembled with a bearing accessory are arranged on the side surface of at least one bearing end of the elastic body, and a dust cover is arranged at the joint of the lower end of the housing and the bearing accessory. The shell is of a round platform-shaped structure, has the advantages of low center of gravity and stable structure, can block the influence of impurities such as silt on the bearing contact structure, and is beneficial to accurate weighing; a dust cover is arranged at the joint of the lower part of the shell and the bearing accessory, and a glass sintered cable joint welded on the shell is arranged at the wire outlet of the elastic body, so that the waterproof and dustproof capacity of the sensor can be improved; the bearing accessory assembled with the elastic body is provided with the stepped cylindrical groove with the large outside and the small inside, so that the bearing point position of the elastic body is fixed, the swing angle of the sensor is ensured, and the column type weighing sensor is simple and stable in structure, has the characteristics of high weighing precision, rotation prevention, water prevention and dust prevention, and is suitable for being used in the field of automobile weighing.

However, the method still has the obvious defects in the using process: the elastic body in the device is a fixing device, on one hand, after the elastic body is damaged or the performance is reduced, the elastic body in the sensor needs to be integrally disassembled to replace the elastic body, so that the operation is complex and time-consuming, and small parts are very easy to scatter and lose in the disassembling and opening process due to the fine internal parts of the sensor, the matching is difficult, and the failure of the device is caused; on the other hand, different elastic bodies can lead to weighing sensors to have different weighing accuracies, and the elastic body in the device is unique, so the weighing accuracy cannot be freely switched, different weighing use requirements cannot be met, and the application range is limited.

Disclosure of Invention

The present invention is directed to a weighing sensor and a weighing scale, which solve the problems of the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a load cell, comprising:

the bottom plate is fixedly provided with an outer shell, a first elastic sealing gasket is embedded in the top wall of the outer shell, an upper bearing plate is fixedly arranged in the middle of the first elastic sealing gasket, an upper clamping and embedding structure is fixedly arranged below the upper bearing plate, a lower bearing plate is arranged in an inner cavity formed by the outer shell and the bottom plate, a lower clamping and embedding structure is fixedly arranged above the lower bearing plate, a force transmission ball is movably arranged in the bottom concave surface of the lower bearing plate, the bottom end of the force transmission ball is movably arranged in the top concave surface of the tilting base, a compression spring is connected between the tilting base and the bottom plate, a limiting plate is movably clamped and embedded between the tilting base and the bottom plate, a lower adjusting rod is fixedly arranged on the side surface of the limiting plate and penetrates through the side wall of the outer shell, and a lower adjusting handle is fixedly arranged at the end part of the lower adjusting rod, an external support structure is arranged between the upper bearing plate and the lower bearing plate, so that the upper bearing plate and the lower bearing plate can be pushed in the direction away from each other;

the elastic structure is detachably arranged between the upper bearing plate and the lower bearing plate and comprises an elastic body, at least one through groove is formed in the elastic body, an upper positioning plate and a lower positioning plate are fixedly arranged at the upper end and the lower end of the elastic body respectively, transverse grooves are formed in the upper positioning plate and the lower positioning plate respectively, first protruding blocks are fixedly arranged in the transverse grooves, longitudinal clamping grooves are formed in the ends, away from each other, of the upper positioning plate and the lower positioning plate respectively, and second protruding blocks are fixedly arranged in the longitudinal clamping grooves; and

the utility model discloses a mobile phone support, including the casing, the casing is provided with the bottom plate, the casing is provided with the top regulation handle, the top is provided with the board, the rotatory bracing piece is articulated to be set up in the inner chamber that the casing encloses with the bottom plate, the fixed board of placing that is provided with on the rotatory bracing piece, it is provided with the second elastic sealing pad to embed in the roof of casing, sealed the running through is provided with the montant among the second elastic sealing pad, the fixed top regulation handle that is provided with in top regulation handle is kept away from to the montant, the fixed two inserted bars that are provided with in side of montant, all fixed third protruding piece that is provided with on the inserted bar, the fixed stopper that is provided with of top surface of placing the board.

Preferably, the upper clamping and embedding structure comprises a first protruding rod, the first protruding rod is fixedly arranged below the upper bearing plate, and a first clamping and embedding block is integrally formed on the first protruding rod.

Preferably, the lower clamping and embedding structure comprises a second protruding rod, the second protruding rod is fixedly arranged above the lower bearing plate, and a second clamping and embedding block is integrally formed on the second protruding rod.

Preferably, a lower sealing washer is arranged at the penetrating position of the lower adjusting rod and the outer shell.

Preferably, the outer supporting structure includes the mounting panel, the embedded bearing that is provided with in the mounting panel, the articulated transfer line that is provided with in the bearing, fixed cover is equipped with passive bevel gear on the transfer line, passive bevel gear's side meshing is provided with drive bevel gear, drive bevel gear keeps away from the fixed regulation pole that is provided with in one end center department of passive bevel gear, go up the lateral wall that the regulation pole runs through the shell body, and the end fixing is provided with adjustment handle, the both ends of transfer line are all fixed and are provided with the lead screw, and the surperficial screw thread opposite direction of these two lead screws, all the activity is provided with the nut on the lead screw, all fixed push rods that are provided with on the nut.

Preferably, an upper sealing washer is arranged at the penetrating position of the upper adjusting rod and the outer shell.

Preferably, one end of each of the two lead screws, which is far away from the transmission rod, is fixedly provided with a blocking block.

Preferably, one end of the rotating support rod, which is close to the bottom plate, is hinged in a bearing seat, and the bearing seat is embedded in the bottom plate.

A weighing scale comprises the weighing sensor.

Compared with the prior art, the invention has the beneficial effects that:

1. the elastic structure of the invention can be replaced, and the weighing sensor does not need to be completely disassembled and opened during replacement, thereby saving time and energy, saving disassembling tools, avoiding the fine structure in the sensor from rolling and losing, having better user experience and simpler and quicker operation;

2. the invention can embed various elastic structures in the shell of the sensor in advance, and can be conveniently replaced into different elastic structures according to different use conditions in actual use, thereby ensuring that the weighing sensor can realize different weighing precisions and has stronger universality.

The invention provides a weighing sensor and a weighing scale, which are internally provided with a plurality of elastic structures, can be freely replaced under the condition of not disassembling and opening the sensor, are time-saving and labor-saving, avoid the loss of fine parts and enable the sensor to have various weighing precisions.

Drawings

FIG. 1 is a schematic sectional front view of the elastic structure of the present invention in an assembled state;

FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the invention at B in FIG. 1;

FIG. 4 is a schematic sectional front view of the outer supporting structure (excluding the elastic structure) of the present invention;

FIG. 5 is an enlarged view of the invention at C of FIG. 4;

FIG. 6 is a schematic top sectional view of the upper positioning plate of the present invention;

FIG. 7 is a schematic bottom view of the compression spring and the limiting plate of the present invention relative to the tilting base;

fig. 8 is a schematic view showing a state where the elastic structure is placed on the placement board in the present invention.

In the figure: 1 bottom plate, 2 outer shell, 3 first elastic sealing gasket, 4 upper bearing plate, 401 first protruding rod, 402 first clamping insert, 5 lower bearing plate, 501 second protruding rod, 502 second clamping insert, 6 elastic structure, 601 elastic body, 602 through groove, 603 upper positioning plate, 604 lower positioning plate, 605 transverse groove, 606 first protruding block, 607 longitudinal clamping groove, 608 second protruding block, 7 force transmission ball, 8 inclined base, 9 compression spring, 10 limiting plate, 11 lower adjusting rod, 12 lower adjusting handle, 13 lower sealing gasket, 14 mounting plate, 15 bearing, 16 transmission rod, 17 passive bevel gear, 18 driving bevel gear, 19 upper adjusting rod, 20 upper adjusting handle, 21 upper sealing gasket, 22 lead screw, 23 nut, 24 push rod, 25 blocking block, 26 rotary supporting rod, 27 bearing seat, 28 placing plate, 29 second elastic sealing gasket, 30 vertical rod, 31 top adjusting handle, 32 inserted rod, 21 upper sealing gasket, 22 lead screw, 23 nut, 24 push rod, 25 blocking block, 26 rotary supporting rod, 27 bearing seat, 28 placing plate, 29 second elastic sealing gasket, 30 vertical rod, 31 top adjusting handle, 32 inserted rod, etc, 321 a third bump and 33 a limit block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

a load cell, comprising:

the bottom plate 1, the bottom plate 1 is fixedly provided with an outer shell 2, the outer shell 2 can be a transparent shell, and then a user can conveniently observe the condition of an internal structure, the operation is more convenient, a first elastic sealing gasket 3 is embedded in the top wall of the outer shell 2, an upper bearing plate 4 is fixedly arranged in the middle of the first elastic sealing gasket 3, an upper clamping and embedding structure is fixedly arranged below the upper bearing plate 4, when the upper bearing plate 4 moves up and down, the first elastic sealing gasket 3 can deform along with the upper bearing plate, but the upper bearing plate is always kept in a relative sealing state, a lower bearing plate 5 is arranged in an inner cavity formed by the outer shell 2 and the bottom plate 1, a lower clamping and embedding structure is fixedly arranged above the lower bearing plate 5, a force transmission ball 7 is movably arranged in a concave surface at the bottom of the lower bearing plate 5, the bottom end of the force transmission ball 7 is movably arranged in a concave surface at the top of an inclined base 8, and the force transmission ball 7 cannot be separated from the position between the lower bearing plate 5 and the inclined base 8, a compression spring 9 is connected and arranged between the inclined base 8 and the bottom plate 1, a limiting plate 10 is movably clamped and embedded between the inclined base 8 and the bottom plate 1, one side of the limiting plate 10, which is contacted with the inclined base 8, is also an inclined surface, and the slope is the same as that of the inclined surface of the inclined base 8, so that the top surface of the limiting plate 10 is attached to the bottom surface of the inclined base 8, a lower adjusting rod 11 is fixedly arranged on the side surface of the limiting plate 10, the lower adjusting rod 11 penetrates through the side wall of the outer shell 2, a lower adjusting handle 12 is fixedly arranged at the end part of the lower adjusting rod, the lower adjusting rod 11 can be pulled through the lower adjusting handle 12 to drive the limiting plate 10 to move, an external support structure is arranged between the upper bearing plate 4 and the lower bearing plate 5, so that the upper bearing plate 4 and the lower bearing plate 5 can be pushed in the direction away from each other, and therefore, the elastic structure 6 clamped and positioned in the clamping and embedded manner can be taken out and replaced;

the elastic structure 6, the elastic structure 6 is detachably disposed between the upper bearing plate 4 and the lower bearing plate 5, and can be freely replaced, the elastic structure 6 includes an elastic body 601, the elastic body 601 is provided with at least one through groove 602, so as to avoid the problem of damage of the elastic body 601 due to stress concentration, and improve the service life of the elastic body 601, the upper and lower ends of the elastic body 601 are respectively fixedly provided with an upper positioning plate 603 and a lower positioning plate 604, so as to facilitate positioning and mounting of the elastic body 601, the upper positioning plate 603 and the lower positioning plate 604 are both provided with a transverse groove 605, the transverse groove 605 is both fixedly provided with a first raised block 606, the mutually distant ends of the upper positioning plate 603 and the lower positioning plate 604 are both provided with a longitudinal slot 607, the longitudinal slot 607 is both fixedly provided with a second raised block 608, in the actual manufacturing process, the first raised block 606 and the second raised block 608 can be integrally formed with the corresponding upper positioning plate 603 or lower positioning plate 604, the whole body is more stable and not easy to damage, and the service life of the device is effectively prolonged; and

the rotary supporting rod 26 is hinged to the inner cavity formed by the outer shell 2 and the bottom plate 1, so that the rotary supporting rod 26 can rotate in situ, the placing plate 28 is fixedly arranged on the rotary supporting rod 26, a plurality of elastic structures 6 with the same or different types of elastic bodies 601 but the same size can be placed on the placing plate 28, a second elastic sealing gasket 29 is embedded in the top wall of the outer shell 2, a vertical rod 30 is arranged in the second elastic sealing gasket 29 in a sealing and penetrating manner, the vertical rod 30 can be lifted, moved or rotated in a small amplitude, the second elastic sealing gasket 29 can be stretched or extruded at the moment, but the sealing performance is always kept, a top adjusting handle 31 is fixedly arranged at the top end of the vertical rod 30, the vertical rod 30 can be operated through the top adjusting handle 31, the use is more comfortable, one end of the vertical rod 30, which is far away from the top adjusting handle 31, can be movably contacted with the placing plate 28, the fixed two inserted bars 32 that are provided with in side of montant 30, when using, inserted bar 32 can aim at and insert the cross slot 605 of elastic construction 6, receive the position restriction of first protruding piece 606, make inserted bar 32 can drive elastic construction 6 and remove, all be fixed on the inserted bar 32 and be provided with third protruding piece 321, the fixed stopper 33 that is provided with in top surface of placing board 28, after dismantling original elastic construction 6, inserted bar 32 can drive this elastic construction 6 and remove it on placing board 28, at this moment, inserted bar 32 moves back, this elastic construction 6 receives stopping of stopper 33 spacing, will break away from on the inserted bar 32.

Preferably, the upper clamping structure comprises a first protruding rod 401, the first protruding rod 401 is fixedly arranged below the upper bearing plate 4, and a first clamping block 402 is integrally formed on the first protruding rod 401 to form a firm whole and is not easy to damage.

Preferably, the lower engaging structure includes a second protruding rod 501, the second protruding rod 501 is fixedly disposed above the lower carrier plate 5, and a second engaging block 502 is integrally formed on the second protruding rod 501.

Preferably, a lower sealing washer 13 is arranged at a penetrating position of the lower adjusting rod 11 and the outer shell 2, the lower adjusting rod 11 can rotate in the lower sealing washer 13, and the arrangement of the lower sealing washer 13 improves the relative sealing performance of an inner cavity enclosed between the outer shell 2 and the bottom plate 1, so that the inner elements are prevented from being polluted and damaged after water vapor, dust and the like in the external environment enter the inner cavity.

Preferably, the external bracing structure comprises a mounting plate 14, a bearing 15 is embedded in the mounting plate 14, a transmission rod 16 is hinged in the bearing 15, so that the transmission rod 16 can rotate in situ, a driven bevel gear 17 is fixedly sleeved on the transmission rod 16, a driving bevel gear 18 is meshed with the side surface of the driven bevel gear 17, when in use, the driving bevel gear 18 rotates to drive the driven bevel gear 17 to rotate, an upper adjusting rod 19 is fixedly arranged at the center of one end of the driving bevel gear 18 away from the driven bevel gear 17, the upper adjusting rod 19 penetrates through the side wall of the outer shell 2, an upper adjusting handle 20 is fixedly arranged at the end part, the upper adjusting rod 19 can be driven by the upper adjusting handle 20 to rotate, the driving bevel gear 18 at the end part is driven to rotate along with the upper adjusting rod 19, lead screws 22 are fixedly arranged at both ends of the transmission rod 16, and the surface screw threads of the two lead screws 22 are opposite in direction, all the movable nuts 23 that are provided with on the lead screw 22, when the transfer line 16 rotates, the lead screws 22 of both sides can take place the rotation simultaneously, make two nuts 23 move simultaneously according to the direction that is close to each other or keeps away from each other, all fixedly on the nut 23 be provided with the push rod 24, the nut 23 can drive the push rod 24 and remove, the push rod 24 of both sides and then promote last loading board 4 and lower loading board 5 to the direction of keeping away from each other, thereby enlarge the interval of last loading board 4 and lower loading board 5, be convenient for take off and change elastic construction 6.

Preferably, an upper sealing washer 21 is arranged at a penetrating position of the upper adjusting rod 19 and the outer shell 2, the upper adjusting rod 19 can rotate in the lower sealing washer 13, and the arrangement of the lower sealing washer 13 improves the relative sealing performance of an inner cavity enclosed between the outer shell 2 and the bottom plate 1, so that the inner elements are prevented from being polluted and damaged after water vapor, dust and the like in the external environment enter the inner cavity.

Preferably, a stop 25 is fixedly arranged at one end of each of the two threaded spindles 22 remote from the transmission rod 16, and the stop 25 is arranged to prevent the nut 23 from disengaging from the threaded spindle 22 during movement.

Preferably, one end of the rotation support rod 26 close to the bottom plate 1 is hinged in a bearing seat 27, and the bearing seat 27 is embedded in the bottom plate 1, so that the bearing seat 27 can provide stable rotation support for the rotation support rod 26.

A weighing scale comprises the weighing sensor.

The first embodiment is as follows:

during the use, can be directly place the object that needs weigh on the surface of last loading board 4, it can push down to go up loading board 4 atress, first elastic sealing pad 3 at this moment can take place deformation along with the position change of last loading board 4, go up the elastomer 601 among the loading board 4 pushing down elastic structure 6, the elastomer 601 bears the external force that weighing sensor received, produce the reaction force to external force, reach relative static balance, and produce the strain area of a high-quality, make the more ideal conversion task of accomplishing the jujube signal of telecommunication that meets an emergency of resistance strain gauge of pasting in this district, realize weighing and measure from this.

Example two:

after long-term use, if the elastic structure 6 used currently has the problem of aging and damage and needs to be replaced, or has different requirements for the current measurement accuracy, the elastic structure 6 with other elastomer 601 models needs to be replaced to adjust the weighing accuracy, and then the replacement and adjustment can be carried out without disassembling and opening the sensor:

specifically, the first step: a user moves the vertical rod 30 through the top adjusting handle 31, so that the two inserting rods 32 on the vertical rod 30 are respectively inserted into the upper through groove 602 and the lower through groove 602 of the elastic structure 6, and the elastic structure 6 is clamped and positioned;

the second step is that: a user pulls the lower adjusting handle 12, the lower adjusting handle 12 drives the limiting plate 10 to be pulled outwards through the lower adjusting rod 11 until the limiting plate 10 moves to a position where only a small part of the limiting plate contacts with the bottom plate of the tilting base 8, the limiting support received by the bottom of the tilting base 8 becomes lower at the moment, but under the action of the compression spring 9, the tilting base 8 still can be jacked up, and the elastic structure 6 still keeps still at the moment;

the third step: the outer supporting structure is operated to push the upper bearing plate 4 and the lower bearing plate 5 to the direction away from each other, a user rotates the upper adjusting handle 20, the upper adjusting handle 20 drives the driving bevel gear 18 to rotate through the upper adjusting rod 19, the driving bevel gear 18 drives the transmission rod 16 to rotate through the driven bevel gear 17, so that the lead screws 22 on two sides rotate simultaneously, the two nuts 23 can move to the direction away from each other simultaneously due to the fact that the surface thread directions of the two lead screws 22 are opposite, the upper bearing plate 4 is jacked up by the push rod 24 on the upper side, the lower bearing plate 5 is pushed down by the push rod 24 on the lower side, and the compression spring 9 at the moment is extruded, so that the space between the upper bearing plate 4 and the lower bearing plate 5 is enlarged;

the fourth step: the user moves the vertical rod 30 through the top adjusting handle 31 again, so that the inserted rod 32 drives the taken-down elastic structure 6 to move the elastic structure 6 onto the placing plate 28, and at the moment, the vertical rod 30 continues to move, so that the elastic structure 6 is blocked by the limiting block 33 and cannot continue to move along with the elastic structure, and the originally used elastic structure 6 is taken down;

the fifth step: a user operates the vertical rod 30 through the top adjusting handle 31, so that the vertical rod 30 stirs other limiting blocks 33 to further drive the placing plate 28 to rotate, the placing plate 28 rotates around the central point of the rotating support rod 26, the elastic structure 6 to be replaced is moved to a position close to the upper bearing plate 4 and the lower bearing plate 5, and then the inserting rod 32 is inserted into the transverse groove 605 of the elastic structure 6 to drive the elastic structure 6 to move between the upper bearing plate 4 and the lower bearing plate 5;

and a sixth step: and a third step and a second step of reverse operation, namely, firstly resetting the upper and lower push rods 24 to prevent the upper and lower push rods from directly contacting the upper bearing plate 4 or the lower bearing plate 5, gradually pushing the limiting plate 10 inwards, gradually pushing the tilting base 8 upwards by the limiting plate 10, pushing the lower bearing plate 5 upwards by the tilting base 8 through the force transmission ball 7, inserting the second protruding rod 501 on the lower bearing plate 5 into the longitudinal clamping groove 607 of the lower bearing plate 604, then pressing the upper bearing plate 4 downwards, inserting the first protruding rod 401 at the bottom of the upper bearing plate 4 into the longitudinal clamping groove 607 of the upper bearing plate 603, thereby realizing the installation of the new elastic structure 6, and opening the sensor without dismounting in the whole installation process, thereby saving time and energy, saving a dismounting tool, avoiding the fine structure inside the sensor from rolling and losing, and being convenient to use and being worthy of popularization.

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