Single-point weighing sensor easy to install

Abstract

The utility model relates to the technical field of sensors, and discloses a single-point weighing sensor easy to install, which comprises a single-point sensor, the upper side and the lower side of the single-point sensor are respectively provided with a bearing plate and a base, and the single-point sensor is fixedly connected with the bearing plate and the base through installation assemblies; the mounting assembly comprises a threaded sleeve and a screw rod. Threads are arranged on the inner side and the outer side of the threaded sleeve correspondingly, and the directions of the threads are opposite. The threaded rod is inserted into the threaded sleeve, the threaded rod and the threaded sleeve are in threaded connection, one end of the threaded rod is in threaded connection with the threaded hole D, at the moment, the threaded rod can limit the threaded sleeve and prevent the threaded sleeve from loosening, meanwhile, the threads on the surface of the threaded rod and the threads on the surface of the threaded sleeve are opposite in direction, and when the threaded sleeve is loosened and rotates, the threaded sleeve is screwed out. And the screw rod rotates towards the tightening direction, so that the looseness of the bolt body can be inhibited, and the looseness among the sensor, the bearing plate and the base in the long-term use process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a single-point weighing sensor which is easy to install. Background Art

[0002] A weighing sensor is actually a device that converts mass signals into measurable electrical signal outputs. Weighing sensors can be divided into cantilever beam sensors, column sensors, etc. according to their structure. Single-point sensors are a type of cantilever beam sensors, often also called parallel beam sensors. This type of sensor is often fixed at one end and weighed at the other end.

[0003] Prior art publication number CN217930511U discloses a novel single-point weighing sensor, including a sensor, on which a mounting assembly and a limit assembly are arranged, the mounting assembly includes a plunger, a control rod, a spring A, a slide plate and a fixing member, the mounting assembly and the limit assembly are both provided with four groups and the four groups of mounting assemblies and limit assembly arrays are arranged on the sensor, the fixing member includes a support rod, one end of the support rod is hinged to the slide plate, the other end of the support rod is hinged to a connecting rod, the end of the connecting rod away from the support rod is hinged to the side of the plunger, the limit assembly includes a pressure plate, the top of the pressure plate is fixed with a vertical rod. The device inserts and fixes the plunger into the mounting hole and abuts and fixes it with the mounting hole through the coordinated use of the control rod, the support rod and the connecting rod in the mounting assembly.

[0004] Although the above device can connect the load-bearing plate, the base and the sensor, this abutment connection is not strong enough. When subjected to a large upward or downward pressure, the load-bearing plate and the base may fall off the sensor, making it unsafe to use. Therefore, a single-point weighing sensor that is more firmly installed, the load-bearing plate and the base can be firmly connected to the sensor, and is safer to use and easy to install is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a single-point weighing sensor that is easy to install, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A single-point weighing sensor that is easy to install, comprises a single-point sensor, wherein a load-bearing plate and a base are respectively arranged on the upper and lower sides of the single-point sensor, and the single-point sensor is fixedly connected to the load-bearing plate and the base through an installation component; the installation component comprises a threaded sleeve and a screw, wherein threads are arranged on the inner and outer sides of the threaded sleeve and the directions of the threads are opposite, the outer side of the screw is arranged with threads matching the inner threads of the threaded sleeve, and the screw is threadedly connected in the threaded sleeve, both ends of the screw extend to the outside of the threaded sleeve, a sleeve joint is fixed to one end of the threaded sleeve, a hexagonal nut is fixed to the end of the sleeve joint away from the threaded sleeve, a limiting sleeve is arranged inside the hexagonal nut, and a screw joint is fixed to one end of the screw.

[0008] As a further scheme of the utility model: the sleeve joint is cylindrical, and a longitudinal through hole is provided on the inner wall of the sleeve joint, the through hole on the inner wall of the sleeve joint is coaxially arranged with the threaded sleeve, and the aperture of the through hole on the inner wall of the sleeve joint is larger than the inner diameter of the threaded sleeve, the hexagonal socket nut is in an outer circle and inner square shape, and the diameter of the outer circle of the hexagonal socket nut is larger than the outer diameter of the sleeve joint, the outer shape of the limit sleeve matches the inner shape of the hexagonal socket nut, the screw joint is a regular hexagon, and the outer shape of the screw joint matches the inner shape of the hexagonal socket nut, the outer diameter of the screw joint is larger than the aperture of the through hole on the inner wall of the sleeve joint, and the outer diameter of the screw joint is smaller than the inner diameter of the hexagonal socket nut, and a cross cut is provided on the surface of the screw joint.

[0009] As a further solution of the utility model: a rubber plug is arranged above the inside of the hexagonal nut, the shape of the rubber plug matches the internal shape of the hexagonal nut, and a plurality of magnets are embedded and fixed at the bottom of the limiting sleeve.

[0010] As a further solution of the utility model: screw holes A are provided on one side of the load-bearing plate and the base corresponding to the mounting assembly, and a limiting gasket is fixed on one side of the top of the base.

[0011] As a further solution of the utility model: the two ends of the single-point sensor are respectively set as the load-bearing end and the fixed end, the limiting gasket is set below the load-bearing end, one side of the load-bearing end is provided with multiple screw holes C from top to bottom, and the load-bearing end is provided with multiple screw holes D below one side corresponding to the multiple screw holes C, and the multiple screw holes D are coaxially arranged with the multiple screw holes C and are connected one by one.

[0012] As a further solution of the utility model: a plurality of screw holes C are opened on one side of the fixed end from bottom to top, a plurality of screw holes D are opened above one side of the fixed end corresponding to the plurality of screw holes C, and the plurality of screw holes D are coaxially arranged with the plurality of screw holes C and connected one by one.

[0013] As a further solution of the utility model: grooves are provided on the upper and lower sides of the single-point sensor, and multiple strain gauges are installed in the two grooves; a cable connector is provided on one side of the single-point sensor, and the multiple strain gauges are electrically connected to the cable connector through leads; a strain groove is horizontally provided on the single-point sensor, and the strain groove runs through the front and rear end faces of the single-point sensor; silicone blocks are fixed in the two grooves; a load-bearing end gasket is provided above the load-bearing end, and a fixed end gasket is provided below the fixed end; multiple screw holes B are provided on the load-bearing end gasket and the fixed end gasket, and the multiple screw holes B are respectively provided in one-to-one correspondence with the multiple screw holes C.

[0014] As a further solution of the present invention: the screw hole A, the screw hole B, and the screw hole C have the same specifications, and the threads of the screw holes A, the screw holes B, and the screw holes C match the external threads of the threaded sleeve, the aperture of the screw hole D is the same as the aperture of the threaded sleeve, and the thread of the screw hole D is consistent with the internal thread of the threaded sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, the threaded sleeve can be tightened in the screw hole C by using a hexagonal wrench. The threaded sleeve passes through the screw hole A and the screw hole B in sequence, and is finally tightened at the bottom end of the screw hole C. At this time, the bottom plate, the fixed end gasket, and the single-point sensor are fixed together. Similarly, the bearing plate can be fixed above the bearing end through the same operation, thereby completing the initial assembly of the product;

[0017] 2. In the utility model, the screw is inserted into the threaded sleeve, and the screw and the threaded sleeve are also connected by threads. The screw is rotated downward (or upward) using a screwdriver, and one end of the screw extends into the screw hole D and is threadedly connected and fixed with the screw hole D. At this time, the screw can limit the threaded sleeve to prevent it from loosening. At the same time, the threads on the surface of the screw and the threads on the surface of the threaded sleeve are opposite. When the threaded sleeve loosens and rotates, the screw rotates in the tightening direction, which can inhibit the loosening of the bolt body, thereby avoiding the loosening of the sensor and the load-bearing plate and the base during long-term use, and the connection is more secure;

[0018] 3. In the utility model, the limit sleeve can be used to limit and fix the screw joint in the hexagonal nut to prevent the screw from loosening and rotating. The rubber plug can cover the opening at the upper end of the hexagonal nut to prevent the screw, sleeve, etc. from getting water and rusting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the expanded structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the unfolded structure of the threaded sleeve in the installation assembly.

[0023] Figure 4 Schematic diagram of the unfolded structure of the screw in the installation assembly.

[0024] Figure 5 It is a schematic diagram of the structure of the limit sleeve in the installation component from a bottom view.

[0025] Figure 6 It is a schematic diagram of the expanded structure of the sensor in the utility model.

[0026] Figure 7 It is a front cross-sectional view of the sensor in the present utility model.

[0027] Notes on figure numbers: 1-load-bearing plate, 2-base, 3-single-point sensor, 31-load-bearing end, 32-cable connector, 33-strain groove, 34-silicone block, 35-fixed end gasket, 36-fixed end, 37-strain gauge, 38-groove, 39-load-bearing end gasket, 310-screw hole B, 311-screw hole C, 312-screw hole D, 4-mounting assembly, 41-threaded sleeve, 42-sleeve joint, 43-hexagonal nut, 44-limiting sleeve, 45-rubber plug, 46-screw, 47-screw joint, 48-magnet, 5-screw hole A, 6-limiting gasket. DETAILED DESCRIPTION

[0028] The following embodiments will be combined with the accompanying drawings to describe the utility model in detail. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0029] Example 1

[0030] See also Figure 1 , Figure 2 In an embodiment of the utility model, a single-point weighing sensor that is easy to install includes a single-point sensor 3, and a load-bearing plate 1 and a base 2 are respectively provided on the upper and lower sides of the single-point sensor 3. The single-point sensor 3 is fixedly connected to the load-bearing plate 1 and the base 2 through an installation component 4. The load-bearing plate 1 and the base 2 are both provided with screw holes A5 on one side corresponding to the installation component 4, and a limiting gasket 6 is fixed on one side of the top of the base 2.

[0031] See also Figure 3 , Figure 4 , Figure 5 The mounting assembly 4 comprises a threaded sleeve 41 and a screw 46. The inner and outer sides of the threaded sleeve 41 are provided with threads in opposite directions. The outer side of the screw 46 is provided with threads matching the inner threads of the threaded sleeve 41, and the screw 46 is threadedly connected in the threaded sleeve 41. Both ends of the screw 46 extend to the outside of the threaded sleeve 41. A sleeve joint 42 is fixed to one end of the threaded sleeve 41. The sleeve joint 42 is cylindrical, and a longitudinal through hole is opened on the inner wall of the sleeve joint 42. The through hole on the inner wall of the sleeve joint 42 is coaxially arranged with the threaded sleeve 41, and the aperture of the through hole on the inner wall of the sleeve joint 42 is larger than the inner diameter of the threaded sleeve 41.

[0032] The sleeve joint 42 is fixed with a hexagon socket nut 43 at one end away from the threaded sleeve 41. The hexagon socket nut 43 is in a shape of an outer circle and an inner square. The outer diameter of the hexagon socket nut 43 is larger than the outer diameter of the sleeve joint 42. A limiting sleeve 44 is arranged inside the hexagon socket nut 43. The shape of the limiting sleeve 44 matches the internal shape of the hexagon socket nut 43. A rubber plug 45 is arranged above the inside of the hexagon socket nut 43. The shape of the rubber plug 45 matches the internal shape of the hexagon socket nut 43. The inner shape of the sleeve joint 42 is matched, a plurality of magnets 48 are embedded and fixed at the bottom of the limiting sleeve 44, a screw joint 47 is fixed to one end of the screw rod 46, the screw joint 47 is a regular hexagon, and the outer shape of the screw joint 47 matches the inner shape of the hexagonal nut 43, the outer diameter of the screw joint 47 is larger than the aperture of the through hole on the inner wall of the sleeve joint 42, and the outer diameter of the screw joint 47 is smaller than the inner diameter of the hexagonal nut 43, and a cross cut is provided on the surface of the screw joint 47.

[0033] Example 2

[0034] Based on Example 1, please refer to Figure 6 , Figure 7 , the two ends of the single-point sensor 3 are respectively set as a load-bearing end 31 and a fixed end 36, the limit gasket 6 is set below the load-bearing end 31, and a plurality of screw holes C311 are opened on one side of the load-bearing end 31 from top to bottom, and a plurality of screw holes D312 are opened below one side of the load-bearing end 31 corresponding to the plurality of screw holes C311, and the plurality of screw holes D312 are coaxially arranged with the plurality of screw holes C311 and connected one by one;

[0035] A plurality of screw holes C311 are formed on one side of the fixed end 36 from bottom to top, and a plurality of screw holes D312 are formed on the upper side of the fixed end 36 corresponding to the plurality of screw holes C311. The plurality of screw holes D312 are coaxially arranged with the plurality of screw holes C311 and are connected one by one.

[0036] Grooves 38 are provided on both upper and lower sides of the single-point sensor 3, and a plurality of strain gauges 37 are installed in the two grooves 38. A cable connector 32 is provided on one side of the single-point sensor 3, and the plurality of strain gauges 37 are electrically connected to the cable connector 32 through leads. A strain groove 33 is transversely provided on the single-point sensor 3, and the strain groove 33 runs through the front and rear end faces of the single-point sensor 3. Silicone blocks 34 are fixed in the two grooves 38. A load-bearing end gasket 39 is provided above the load-bearing end 31, and a fixed end gasket 35 is provided below the fixed end 36. A plurality of screw holes B310 are provided on the load-bearing end gasket 39 and the fixed end gasket 35, and the plurality of screw holes B310 are respectively provided in one-to-one correspondence with the plurality of screw holes C311;

[0037] The screw hole A5, the screw hole B310, and the screw hole C311 have the same specifications, and the threads of the screw holes A5, the screw holes B310, and the screw holes C311 match the external threads of the threaded sleeve 41, the aperture of the screw hole D312 is the same as the aperture of the threaded sleeve 41, and the thread of the screw hole D312 is consistent with the internal thread of the threaded sleeve 41.

[0038] Working principle: Place the single-point sensor 3 on the base 2, place a fixed end gasket 35 between the fixed end 36 of the single-point sensor 3 and the base 2, and use a hexagonal wrench to tighten the threaded sleeve 41 into the screw hole C311. The threaded sleeve 41 passes through the screw hole A5 and the screw hole B310 in turn, and is finally tightened to the bottom end of the screw hole C311. At this time, the bottom plate 2, the fixed end gasket 35, and the single-point sensor 3 are fixed together. Similarly, the load-bearing plate 1 can be fixed above the load-bearing end 31 through the same operation, thereby completing the initial assembly of the product;

[0039] Further, in order to improve the stability of the installation structure, the screw 46 can be inserted into the threaded sleeve 41. The screw 46 and the threaded sleeve 41 are also connected by threads. The screw 46 is rotated downward (or upward) using a screwdriver. One end of the screw 46 extends into the screw hole D312 and is threadedly connected and fixed with the screw hole D312. At this time, the screw 46 can limit the threaded sleeve 41 to prevent it from loosening. At the same time, the threads on the surface of the screw 46 are opposite to the threads on the surface of the threaded sleeve 41. When the threaded sleeve 41 loosens and rotates, the screw 46 rotates in the tightening direction, which can suppress the loosening of the bolt body, thereby avoiding the loosening of the sensor and the load-bearing plate and the base during long-term use, and the connection is more secure.

[0040] In addition, the limit sleeve 44 can be used to limit and fix the screw joint 47 in the hexagonal nut 43 to prevent the screw 46 from loosening and rotating. The rubber plug 45 can cover the opening at the upper end of the hexagonal nut 43 to prevent the screw, sleeve, etc. from getting wet and rusting.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An easy-to-install single-point weighing sensor, comprising a single-point sensor (3), characterized in that: The single-point sensor (3) is provided with a load-bearing plate (1) and a base (2) on the upper and lower sides respectively; the single-point sensor (3) is fixedly connected to the load-bearing plate (1) and the base (2) via a mounting assembly (4); the mounting assembly (4) comprises a threaded sleeve (41) and a screw (46); the threaded sleeve (41) is provided with threads on both the inner and outer sides thereof and the directions of the threads are opposite; the outer side of the screw (46) is provided with a threaded sleeve (41) that matches the inner thread of the threaded sleeve (41). The threaded sleeve (41) has a threaded connection, and the screw rod (46) is threadedly connected in the threaded sleeve (41), both ends of the screw rod (46) extend to the outside of the threaded sleeve (41), one end of the threaded sleeve (41) is fixed with a sleeve joint (42), one end of the sleeve joint (42) away from the threaded sleeve (41) is fixed with a hexagon socket nut (43), a limiting sleeve (44) is arranged inside the hexagon socket nut (43), and one end of the screw rod (46) is fixed with a screw rod joint (47).

2. The easy-to-install single-point weighing sensor according to claim 1, characterized in that: The sleeve joint (42) is cylindrical, and a longitudinal through hole is opened on the inner wall of the sleeve joint (42). The through hole on the inner wall of the sleeve joint (42) is coaxially arranged with the threaded sleeve (41), and the hole diameter of the through hole on the inner wall of the sleeve joint (42) is larger than the inner diameter of the threaded sleeve (41). The hexagon socket nut (43) is in an outer circle and an inner square shape, and the outer diameter of the hexagon socket nut (43) is larger than the outer diameter of the sleeve joint (42). The limiting sleeve ( The outer shape of the screw joint (44) matches the inner shape of the hexagonal nut (43), the screw joint (47) is a regular hexagon, and the outer shape of the screw joint (47) matches the inner shape of the hexagonal nut (43), the outer diameter of the screw joint (47) is larger than the aperture of the through hole on the inner wall of the sleeve joint (42), and the outer diameter of the screw joint (47) is smaller than the inner diameter of the hexagonal nut (43), and a cross cut is provided on the surface of the screw joint (47).

3. The easy-to-install single-point weighing sensor according to claim 2, characterized in that: A rubber plug (45) is arranged above the interior of the hexagonal nut (43), and the shape of the rubber plug (45) matches the internal shape of the hexagonal nut (43). A plurality of magnets (48) are embedded and fixed at the bottom of the limiting sleeve (44).

4. The easy-to-install single-point weighing sensor according to claim 3, characterized in that: The load-bearing plate (1) and the base (2) are both provided with screw holes A (5) on one side corresponding to the mounting assembly (4), and a limiting gasket (6) is fixed on one side of the top of the base (2).

5. The easy-to-install single-point weighing sensor according to claim 4, characterized in that: The two ends of the single-point sensor (3) are respectively arranged as a load-bearing end (31) and a fixed end (36); the limit gasket (6) is arranged below the load-bearing end (31); a plurality of screw holes C (311) are provided on one side of the load-bearing end (31) from top to bottom; a plurality of screw holes D (312) are provided below one side of the load-bearing end (31) corresponding to the plurality of screw holes C (311); the plurality of screw holes D (312) are coaxially arranged with the plurality of screw holes C (311) and are connected one-to-one.

6. The easy-to-install single-point weighing sensor according to claim 5, characterized in that: A plurality of screw holes C (311) are provided on one side of the fixed end (36) from bottom to top, and a plurality of screw holes D (312) are provided above one side of the fixed end (36) corresponding to the plurality of screw holes C (311), and the plurality of screw holes D (312) are coaxially arranged with the plurality of screw holes C (311) and are connected one-to-one.

7. The easy-to-install single-point weighing sensor according to claim 6, characterized in that: The single-point sensor (3) is provided with grooves (38) on both upper and lower sides, and a plurality of strain gauges (37) are installed in the two grooves (38). A cable connector (32) is provided on one side of the single-point sensor (3), and the plurality of strain gauges (37) are electrically connected to the cable connector (32) through leads. A strain groove (33) is transversely provided on the single-point sensor (3), and the strain groove (33) runs through the front and rear end surfaces of the single-point sensor (3). A silicone block (34) is fixed in the two grooves (38). A load-bearing end gasket (39) is provided above the load-bearing end (31), and a fixed end gasket (35) is provided below the fixed end (36). A plurality of screw holes B (310) are provided on the load-bearing end gasket (39) and the fixed end gasket (35), and the plurality of screw holes B (310) are respectively provided in one-to-one correspondence with the plurality of screw holes C (311).

8. The easy-to-install single-point weighing sensor according to claim 7, characterized in that: The screw hole A (5), the screw hole B (310), and the screw hole C (311) have the same specifications, and the threads of the screw hole A (5), the screw hole B (310), and the screw hole C (311) match the external threads of the threaded sleeve (41), the hole diameter of the screw hole D (312) is the same as the hole diameter of the threaded sleeve (41), and the thread of the screw hole D (312) is consistent with the internal thread of the threaded sleeve (41).

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