Electronic load sensor

Abstract

The utility model provides a kind of electronic type load cell, including sensor body, sensor body includes middle part shell, two groups of side part shell and bottom base plate, and first docking groove is symmetrically equipped in the left and right sides of middle part shell, and the first docking block that is adapted with first docking groove is correspondingly equipped in side part shell inside, and side part shell is detachably connected with middle part shell by first docking block and first docking groove, and positioning groove is equipped in the bottom of middle part shell.The utility model is by the cooperation of the first docking groove-docking block of middle part shell and side part shell, the cooperation of the positioning groove-positioning block of middle part shell and bottom base plate, and the cooperation of the plug-in block-plug-in slot of side part shell and bottom base plate, realize the detachable connection of each component of sensor body, when fault occurs inside sensor, shell can be quickly split for overhaul or replacement component, solve the problem that traditional integrated structure is difficult to disassemble and repair, improve user experience.

Description

Technical Field

[0001] This utility model belongs to the field of sensor technology, and more specifically, it relates to an electronic suspension sensor. Background Technology

[0002] Electronic suspension load cells, also known as cantilever beam load cells, are mostly rectangular in shape, with the strain zone located in the middle of the sensor. The sensor has two fixing holes at the rear end and a pressure-bearing attachment at the front end. It automatically adjusts itself under load, making it easy to install, convenient to use, and interchangeable.

[0003] Existing Chinese patent application number: CN202422489764.3 discloses a steel cantilever beam type load cell. This utility model relates to the technical field of load cells, and in particular to a steel cantilever beam type load cell. In use, the load cell pad assembly is positioned by the concave portion and groove, and then the support leg assembly is installed on the cantilever load cell body. The lead screw of the load-bearing plate passes through two sets of No. 1 through holes and is connected to No. 1 nuts, thereby completing the connection between the cantilever load cell body and the concave portion. Then, the height of the cantilever load cell body is adjusted by the support leg assembly to improve flexibility. It includes a cantilever load cell body, a concave portion, a groove, and a No. 1 through hole. The concave portion is provided on the top left side of the cantilever load cell body. The top of the concave portion is provided with two sets of grooves. The bottom of each set of grooves is provided with a set of No. 1 through holes. It also includes a load cell pad assembly and a support leg assembly. The groove and the concave portion cooperate to position the load cell pad assembly. The support leg assembly is provided on the cantilever load cell body.

[0004] The aforementioned utility model adopts an integrally molded beam structure with built-in resistance strain gauges and cables, all embedded in the elastic body. Once the sensor malfunctions, the entire structure is difficult to disassemble and repair, which may lead to a poor user experience.

[0005] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide an electronic suspension sensor, in order to achieve a more practical value. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides an electronic suspension sensor, which is achieved by the following specific technical means:

[0007] An electronic suspension weight sensor includes a sensor body, which comprises a central housing, two sets of side housings, and a bottom substrate. The central housing has symmetrical first docking grooves on its left and right sides, and the inner sides of the side housings have corresponding first docking blocks adapted to the first docking grooves. The side housings are detachably connected to the central housing through the first docking blocks and the first docking grooves. The bottom of the central housing has a positioning groove, and the top of the bottom substrate has a corresponding positioning block adapted to the positioning groove. The bottom substrate is detachably connected to the central housing through the positioning block and the positioning groove.

[0008] Preferably, a through hole is provided on the top side of the middle housing, and a rubber sealing sleeve is fixedly installed in the through hole. The cable of the sensor body passes through the rubber sealing sleeve and is press-fitted with the rubber sealing sleeve.

[0009] Preferably, the bottom substrate has symmetrical side plate storage slots on the left and right sides. Each set of side plate storage slots is rotatably installed with a set of side plates through a rotating shaft. The two sets of side plates can rotate around the rotating shaft to fit against the outer side of the side shell.

[0010] Preferably, the bottom of the side housing is provided with a plug-in block, and the top of the bottom substrate is provided with a plug-in groove that is adapted to the plug-in block. The side housing is detachably connected to the bottom substrate through the plug-in block and the plug-in groove.

[0011] Preferably, the top side of the side plate is provided with a second positioning slope, and the positions of the two sets of second positioning slopes correspond to the outer wall of the middle shell; the edge of the side plate receiving groove of the bottom base plate is provided with a first positioning slope, the first positioning slope corresponds to the side wall of the side plate, and when the side plate is attached to the outer side of the side shell, the side wall of the side plate is in contact with the first positioning slope.

[0012] Preferably, the inner wall of the rubber sealing sleeve is provided with an annular protrusion, and the outer insulation layer of the cable is provided with an annular groove that matches the annular protrusion, with the annular protrusion and the annular groove being interference fit.

[0013] Preferably, the middle shell, side shells and bottom base plate are all made of steel, and the outer side walls are all provided with an anti-rust coating.

[0014] Preferably, a set of support columns is provided at the four corners of the bottom of the bottom substrate, and the bottom of the support columns is provided with anti-slip pads.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model achieves detachable connection of various components of the sensor body by cooperating with the first docking groove-docking block of the middle shell and the side shell, cooperating with the positioning groove-positioning block of the middle shell and the bottom substrate, and cooperating with the insertion block-insertion groove of the side shell and the bottom substrate. When a fault occurs inside the sensor, the shell can be quickly disassembled for inspection or replacement of components, solving the problem of difficult disassembly and repair of traditional one-piece molded structures and improving the user experience.

[0017] 2. A rubber sealing sleeve is provided in the through hole on the top side of the middle shell of this utility model. The cable and the sealing sleeve are interference fit, and the annular protrusion on the inner side of the sealing sleeve is adapted to the annular groove of the outer insulation layer of the cable. This not only ensures the stability of the cable lead-out, but also effectively prevents dust, moisture and other impurities from entering the shell. At the same time, it avoids the cable being pulled and damaged when the shell is disassembled, thus extending the service life of the cable.

[0018] 3. The side plates on both sides of the bottom substrate of this utility model can rotate around the rotation axis. When they are in contact with the outer side of the side shell, the side wall of the side plate contacts the first positioning inclined surface, which restricts the side plate from rotating excessively. When rotated upward to the preset position, the second positioning inclined surface of the two sets of side plates contacts the outer wall of the middle shell, forming an auxiliary support, enhancing the overall structure's resistance to lateral forces, and reducing the shaking or deformation of the sensor during operation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model. Figure 1 .

[0021] Figure 3 This is a schematic diagram of the exploded structure of this utility model. Figure 2 .

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Sensor; 101. Middle housing; 1011. First docking groove; 1012. Positioning groove; 102. Side housing; 1021. First docking block; 1022. Positioning block; 1023. Insertion block; 103. Bottom base plate; 1031. Insertion groove; 1032. Side plate storage groove; 1033. First positioning slope; 104. Through hole; 105. Rubber sealing sleeve; 106. Side plate; 1061. Rotating shaft; 1062. Second positioning slope; 2. Support column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 3 As shown:

[0027] This utility model provides an electronic suspension weight sensor, including a sensor body 1. The sensor body 1 includes a central housing 101, two sets of side housings 102, and a bottom substrate 103. The central housing 101 has symmetrical first docking grooves 1011 on its left and right sides. The side housings 102 have corresponding first docking blocks 1021 that are adapted to the first docking grooves 1011 on their inner sides. The side housings 102 are detachably connected to the central housing 101 through the first docking blocks 1021 and the first docking grooves 1011. The central housing 101 has a positioning groove 1012 at its bottom. The bottom substrate 103 has a corresponding positioning block 1022 that is adapted to the positioning groove 1012 at its top. The bottom substrate 103 is detachably connected to the central housing 101 through the positioning block 1022 and the positioning groove 1012.

[0028] The middle housing 101 has a through hole 104 on its top side, and a rubber sealing sleeve 105 is fixedly installed inside the through hole 104. The cable of the sensor body 1 passes through the rubber sealing sleeve 105 and is press-fitted with the rubber sealing sleeve 105. The press-fit between the rubber sealing sleeve 105 and the cable in the through hole 104 can not only firmly constrain the position of the cable and prevent the cable from being damaged by pulling when the sensor body 1 is disassembled and assembled, but also achieve a tight seal and protection, blocking dust, moisture and other impurities from entering the housing and protecting the internal components. At the same time, the rubber material has a certain elasticity, which can buffer the slight deformation of the cable when it is under stress, further ensuring the service life of the cable and the stability of signal transmission.

[0029] The bottom base plate 103 has symmetrical side plate storage slots 1032 on both sides. Each set of side plate storage slots 1032 has a set of side plates 106 rotatably installed in it via a rotating shaft 1061. The two sets of side plates 106 can rotate around the rotating shaft 1061 to fit against the outside of the side shell 102. The side plate storage slots 1032 provide storage space for the side plates 106, allowing the side plates 106 to rotate flexibly via the rotating shaft 1061. When not in use, they fit against the outside of the side shell 102, reducing space occupation. When needed, they can be unfolded, which facilitates the disassembly and assembly of the shell and enhances the overall stability through structural cooperation, realizing the dual function of "storage-support" and improving structural flexibility.

[0030] The side housing 102 has a plug-in block 1023 at its bottom, and the bottom base plate 103 has a corresponding plug-in groove 1031 at its top that is adapted to the plug-in block 1023. The side housing 102 is detachably connected to the bottom base plate 103 through the plug-in block 1023 and the plug-in groove 1031. The matching and cooperation of the plug-in block 1023 and the plug-in groove 1031, on the basis of the connection between the middle housing 101, the side housing 102, and the bottom base plate 103, adds an auxiliary fixing point between the side housing 102 and the bottom base plate 103, making the connection between the three more stable, reducing relative shaking during operation, and improving the load-bearing capacity and deformation resistance of the overall structure.

[0031] The side plate 106 has a second positioning slope 1062 on its top side. The positions of the two sets of second positioning slopes 1062 correspond to the outer wall of the middle shell 101. The side plate storage groove 1032 of the bottom base plate 103 has a first positioning slope 1033 on its edge. The first positioning slope 1033 corresponds to the side wall of the side plate 106. When the side plate 106 is attached to the outer side of the side shell 102, the side wall of the side plate 106 is in contact with the first positioning slope 1033. The second positioning slope 1062 corresponds to the outer wall of the middle shell 101. When the side plate 106 is unfolded, it can form lateral support for the middle shell 101, enhancing the overall resistance to lateral forces. The first positioning slope 1033 corresponds to the side wall of the side plate 106. When the side plate 106 is attached to the side shell 102, it can precisely limit the rotation angle, avoid excessive rotation that may cause structural interference, and ensure the stability of the storage state.

[0032] The inner wall of the rubber sealing sleeve 105 is provided with an annular protrusion, and the outer insulation layer of the cable is provided with an annular groove that matches the annular protrusion. The annular protrusion and the annular groove are interference-fitted. The interference fit between the annular protrusion and the annular groove increases the contact area and friction between the rubber sealing sleeve 105 and the cable under the premise of basic sealing, further improving the sealing effect, such as enhancing the waterproof and dustproof level, while preventing the cable from axially moving in the shell, ensuring the stability of the signal transmission path, and reducing measurement errors caused by cable displacement.

[0033] The middle housing 101, the side housing 102 and the bottom substrate 103 are all made of steel, and the outer walls are all coated with anti-rust coating. The steel material has high strength and good rigidity, which can meet the requirements of the sensor for structural load-bearing capacity. The anti-rust coating on the outer wall can effectively resist corrosion from harsh environments such as humidity and dust, extend the service life of the housing, and improve the applicability of the sensor under complex working conditions.

[0034] The bottom substrate 103 has a set of support pillars 2 at the four corners of its bottom end. The bottom end of the support pillars 2 is provided with anti-slip pads. The support pillars 2 raise the bottom substrate 103 to prevent ground impurities from directly contacting the housing. The anti-slip pads at the bottom end can increase the friction with the placement surface, prevent the sensor from sliding due to force when it is working, ensure the stability of the measurement position, and reduce measurement errors caused by displacement.

[0035] The working principle of this embodiment: The sensor body 1 is composed of a middle shell 101, two sets of side shells 102 and a bottom substrate 103, which are assembled into a complete frame through a detachable structure: the middle shell 101 and the side shells 102 are connected by the first docking groove 1011 and the first docking block 1021; the middle shell 101 and the bottom substrate 103 are connected by the positioning groove 1012 and the positioning block 1022; and the side shells 102 and the bottom substrate 103 are connected by the insertion block 1023 and the insertion groove 1031, providing a stable mounting foundation for the internal core measuring elements such as resistance strain gauges;

[0036] During measurement, an external load is applied to the sensor body 1. The core component converts force into electrical signal through strain sensing. The signal is transmitted via a cable, which passes through a rubber sealing sleeve 105 inside the top through-hole 104 of the middle housing 101. The rubber sealing sleeve 105 is interference-fitted with the cable, and its inner annular protrusion matches the annular groove of the cable's outer insulation layer, ensuring stable signal transmission and isolating external impurities. The side plates 106 on both sides of the bottom substrate 103 can be rotated and adjusted via a rotating shaft 1061.

[0037] When the side plate 106 rotates to fit against the outside of the side housing 102, the side wall of the side plate 106 abuts against the first positioning slope 1033 at the edge of the side plate receiving groove 1032, limiting the rotation angle to maintain a compact structure. When the two sets of side plates 106 rotate upward, the second positioning slope 1062 on their top side contacts the outer wall of the middle housing 101, forming an auxiliary support to enhance the overall resistance to lateral forces. The support base column 2 and the bottom anti-slip pad at the bottom of the bottom base plate 103 provide stable support by increasing friction, preventing the sensor from sliding when under force and ensuring a stable measurement environment.

[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An electronic suspension sensor, comprising a sensor body (1), characterized in that: The sensor body (1) includes a central housing (101), two sets of side housings (102), and a bottom substrate (103). The central housing (101) has symmetrical first docking grooves (1011) on its left and right sides. The side housings (102) have corresponding first docking blocks (1021) that are adapted to the first docking grooves (1011) on their inner sides. The side housings (102) are detachably connected to the central housing (101) through the first docking blocks (1021) and the first docking grooves (1011). The central housing (101) has a positioning groove (1012) at its bottom. The bottom substrate (103) has a corresponding positioning block (1022) that is adapted to the positioning groove (1012) at its top. The bottom substrate (103) is detachably connected to the central housing (101) through the positioning block (1022) and the positioning groove (1012).

2. The electronic suspension sensor according to claim 1, characterized in that: The top side of the middle housing (101) is provided with a through hole (104), and a rubber sealing sleeve (105) is fixedly installed in the through hole (104). The cable of the sensor body (1) passes through the rubber sealing sleeve (105) and is press-fitted with the rubber sealing sleeve (105).

3. The electronic suspension sensor according to claim 1, characterized in that: The bottom substrate (103) is symmetrically provided with side plate storage grooves (1032) on the left and right sides. Each set of side plate storage grooves (1032) is rotatably installed with a set of side plates (106) through a rotating shaft (1061). The two sets of side plates (106) can be rotated around the rotating shaft (1061) to fit against the outside of the side shell (102).

4. The electronic suspension sensor according to claim 1, characterized in that: The side housing (102) is provided with a plug-in block (1023) at the bottom, and the bottom substrate (103) is provided with a plug-in groove (1031) adapted to the plug-in block (1023) at the top. The side housing (102) is detachably connected to the bottom substrate (103) through the plug-in block (1023) and the plug-in groove (1031).

5. The electronic suspension sensor according to claim 3, characterized in that: The top side of the side plate (106) is provided with a second positioning slope (1062). The positions of the two sets of second positioning slopes (1062) correspond to the outer wall of the middle shell (101). The edge of the side plate storage groove (1032) of the bottom base plate (103) is provided with a first positioning slope (1033). The first positioning slope (1033) corresponds to the side wall of the side plate (106). When the side plate (106) is attached to the outside of the side shell (102), the side wall of the side plate (106) is in contact with the first positioning slope (1033).

6. The electronic suspension sensor according to claim 2, characterized in that: The inner wall of the rubber sealing sleeve (105) is provided with an annular protrusion, and the outer insulation layer of the cable is provided with an annular groove that matches the annular protrusion. The annular protrusion and the annular groove are interference-fitted.

7. The electronic suspension sensor according to claim 1, characterized in that: The middle shell (101), side shell (102) and bottom base plate (103) are all made of steel, and the outer side walls are all provided with anti-rust coating.

8. The electronic suspension sensor according to claim 1, characterized in that: The bottom base plate (103) is provided with a set of support columns (2) at the four corners of the bottom end, and the bottom end of the support columns (2) is provided with anti-slip pads.

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