Supporting leg weighing sensor

Abstract

The utility model relates to the technical field of weighing measuring instruments, in particular to a supporting leg weighing sensor which comprises a weighing sensor body, a connecting end, a supporting ball, a base, a fastening sleeve and an adjusting mechanism, the adjusting mechanism comprises a servo motor, a threaded rod and a ball screw nut pair, and the connecting end comprises a supporting portion and a connecting portion. One end of the supporting part is fixedly arranged above the weighing sensor body, the other end of the supporting part is slidably provided with the connecting part, the servo motor is arranged at the inner bottom of the supporting part, the servo motor is started to drive the threaded rod to rotate, and the ball screw nut pair is connected with the inner bottom of the connecting part, so that the connecting part slides in the supporting part; the position of the connecting part is adjusted, so that the connecting part can carry out supporting leg weighing on equipment with different heights, by adopting the structure and arranging the adjusting mechanism, the overall height of the supporting leg weighing sensor can be adjusted, and the adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing and measuring instruments, in particular to a foot weighing sensor. Background Art

[0002] At present, in equipment such as platform scales and medical equipment, most use feet to support the equipment, and the sensor is fixed in the equipment for weighing. The feet and the weighing sensor body are independent of each other, and corresponding structures need to be additionally arranged in the equipment to connect with the weighing sensor body, and the overall structure is relatively complex.

[0003] To solve the above problems, a prior publicly disclosed patent (CN205091041U) for a foot weighing sensor includes feet, characterized in that a weighing sensor is arranged in the feet, and a connection part for an object to which the feet need to be installed is arranged at the upper end of the feet. This technical solution can realize foot weighing. The feet not only have the functions of moving, supporting and adjusting the level of the equipment, but also can weigh, simplifying the structure of the appliance with feet and weighing; moreover, weighing at the foot part avoids the installation position error when installing the weighing sensor body inside the appliance, and the measurement is more accurate. And the foot weighing sensor has become a modular structure, and the feet are manufactured by weighing equipment manufacturers, which is more convenient for the installation and maintenance of the appliance with feet and weighing.

[0004] However, the overall height of the existing foot weighing sensor is fixedly set, and the overall height of the foot weighing sensor cannot be adjusted, and the adaptability is poor. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a foot weighing sensor, aiming to solve the technical problem that the overall height of the existing foot weighing sensor is fixedly set, the overall height of the foot weighing sensor cannot be adjusted, and the adaptability is poor.

[0006] To achieve the above purpose, the utility model provides a foot weighing sensor, including a weighing sensor body, a connection end, a support ball, a base, a fastening sleeve and an adjusting mechanism. A support ball is arranged on the upper surface of the base. A concave arc surface is arranged at the bottom of the elastic body in the weighing sensor body. One end of the elastic body in the weighing sensor body with the concave arc surface is arranged above the support ball. The connection end is arranged at the top end of the weighing sensor body. The fastening sleeve is threadedly connected to the outside of the base, and the fastening sleeve is arranged outside the bottom of the elastic body in the weighing sensor body and the support ball. Strain areas are arranged on both sides of the elastic body of the weighing sensor body.

[0007] The adjusting mechanism includes a servo motor, a threaded rod, and a ball screw nut pair. The connection end includes a support portion and a connection portion. One end of the support portion is fixedly arranged above the weighing sensor body, and the other end of the support portion is slidably provided with the connection portion. The outer part of the top end of the connection portion is provided with a connection thread. Both the support portion and the connection portion are arranged in a hollow structure. The servo motor is arranged at the inner bottom of the support portion. The output end of the servo motor is provided with the threaded rod, and the ball screw nut pair is arranged on the threaded rod. The ball screw nut pair is connected to the inner bottom wall of the connection portion.

[0008] Wherein, a limiting block is arranged at one end of the threaded rod away from the servo motor, and the limiting block is located inside the support portion.

[0009] Wherein, limiting grooves are arranged on both sides inside the support portion, and limiting plates are arranged on both sides outside the connection portion. The limiting plates are adapted to the limiting grooves.

[0010] Wherein, a wiring hole is arranged on the outer side of the support portion, and the wiring hole corresponds to the servo motor.

[0011] Wherein, the foot weighing sensor further includes a heat dissipation plate. The heat dissipation plate is arranged on the outer side wall of the support portion, and heat dissipation grooves are arranged through the heat dissipation plate. The heat dissipation grooves correspond to the servo motor.

[0012] Wherein, one end of the heat dissipation plate extending to the outside of the support portion is provided with a placement groove. The placement groove penetrates the heat dissipation groove, and a filter screen is arranged inside the placement groove.

[0013] For a foot weighing sensor of the present utility model, when the servo motor is started, it drives the threaded rod to rotate. Since the ball screw nut pair is connected to the inner bottom of the connection portion, the connection portion slides inside the support portion, adjusting the position of the connection portion, so that the connection portion can weigh the feet of devices at different heights. With the above structure, through the setting of the adjusting mechanism, the overall height of the foot weighing sensor can be adjusted to meet the foot weighing of different devices, and the adaptability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of the foot weighing sensor according to the first embodiment of the present utility model.

[0016] Figure 2 provided by the present utility model Figure 1 Partial enlarged structural view of part A of

[0017] Figure 3 It is a schematic exploded structural diagram of the foot weighing sensor according to the first embodiment of the present utility model.

[0018] Figure 4 It is a schematic structural diagram of the foot weighing sensor according to the second embodiment of the present utility model.

[0019] Figure 5 provided by the present utility model Figure 4 Partial enlarged structural view of part B of

[0020] 101 - weighing sensor body, 102 - support ball, 103 - base, 104 - fastening sleeve, 105 - servo motor, 106 - threaded rod, 107 - ball screw nut pair, 108 - support part, 109 - connecting part, 110 - concave arc surface, 111 - strain area, 112 - connecting thread, 113 - limit block, 114 - limit groove, 115 - limit plate, 116 - wiring hole, 201 - heat dissipation plate, 202 - heat dissipation groove, 203 - placement groove, 204 - filter screen. Detailed implementation manners

[0021] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0022] First embodiment:

[0023] Please refer to Figures 1 to 3 , wherein Figure 1 is a schematic structural diagram of the foot weighing sensor of the first embodiment, Figure 2 is Figure 1 partial enlarged structural view of part A of Figure 3 is a schematic exploded structural diagram of the foot weighing sensor of the first embodiment.

[0024] The utility model provides a foot weighing sensor, which comprises a weighing sensor body 101, a connecting end, a support ball 102, a base 103, a fastening sleeve 104 and an adjusting mechanism. The adjusting mechanism comprises a servo motor 105, a threaded rod 106 and a ball screw nut pair 107. The connecting end comprises a support portion 108 and a connecting portion 109. By the foregoing solution, the problem that the overall height of the existing foot weighing sensor is fixedly set and the overall height of the foot weighing sensor cannot be adjusted, resulting in poor adaptability, is solved. It can be understood that the foregoing solution can be used in the structure of the foot weighing sensor.

[0025] For this specific embodiment, the support ball 102 is arranged on the upper surface of the base 103. A concave arc surface 110 is arranged at the bottom of the elastic body in the weighing sensor body 101. One end of the elastic body in the weighing sensor body 101 having the concave arc surface 110 is arranged above the support ball 102. The top end of the weighing sensor body 101 is provided with the connecting end. The outer part of the base 103 is threadedly connected with the fastening sleeve 104. The fastening sleeve 104 is arranged at the bottom of the elastic body in the weighing sensor body 101 and outside the support ball 102. Strain regions 111 are arranged on both sides of the elastic body of the weighing sensor body 101. With the above structure, foot weighing can be realized. The foot not only has the functions of moving, supporting and adjusting the level of the equipment, but also can weigh, simplifies the structure of the appliance with a foot that has a weighing function, and moreover, weighing at this foot position avoids the installation position error when installing the weighing sensor inside the appliance, and the measurement is more accurate.

[0026] Wherein, one end of the support portion 108 is fixedly arranged above the weighing sensor body 101. The other end of the support portion 108 is slidably provided with the connecting portion 109. A connecting thread 112 is arranged outside the top end of the connecting portion 109. Both the support portion 108 and the connecting portion 109 are arranged in a hollow structure. The servo motor 105 is arranged at the inner bottom of the support portion 108. The output end of the servo motor 105 is provided with the threaded rod 106. The ball screw nut pair 107 is arranged on the threaded rod 106. The ball screw nut pair 107 is connected to the inner bottom wall of the connecting portion 109. Starting the servo motor 105 drives the threaded rod 106 to rotate. Since the ball screw nut pair 107 is connected to the inner bottom of the connecting portion 109, the connecting portion 109 slides inside the support portion 108, adjusting the position of the connecting portion 109, so that the connecting portion 109 can perform foot weighing on equipment of different heights. With the above structure, through the setting of the adjusting mechanism, the overall height of the foot weighing sensor can be adjusted to meet the foot weighing of different equipment, and the adaptability is stronger.

[0027] Secondly, a limit block 113 is provided at one end of the threaded rod 106 away from the servo motor 105. The limit block 113 is located inside the support portion 108. By providing the limit block 113, the ball screw nut pair 107 is prevented from detaching from the threaded rod 106. Since the limit block 113 is located inside the support portion 108, the connection portion 109 is prevented from falling off from inside the support portion 108.

[0028] Meanwhile, limit grooves 114 are provided on both sides inside the support portion 108, and limit plates 115 are provided on both sides outside the connection portion 109. The limit plates 115 are adapted to the limit grooves 114. By providing the limit grooves 114 and the limit plates 115, the structure is more stable when the connection plate slides inside the support portion 108.

[0029] In addition, a wiring hole 116 is provided on the outer side of the support portion 108, and the wiring hole 116 corresponds to the servo motor 105. By providing the wiring hole 116, the wiring of the servo motor 105 is completed.

[0030] When using a foot weighing sensor of this embodiment, foot weighing can be achieved. The foot not only has the functions of moving, supporting and adjusting the level of the equipment, but also can weigh, simplifying the structure of the appliance with a foot that has a weighing function. Moreover, weighing at the foot part avoids the installation position error when installing a weighing sensor inside the appliance, and the measurement is more accurate. And the servo motor 105 can be started to drive the threaded rod 106 to rotate. Since the ball screw nut pair 107 is connected to the inner bottom of the connection portion 109, the connection portion 109 slides inside the support portion 108, adjusting the position of the connection portion 109 so that the connection portion 109 can perform foot weighing on equipment at different heights. With the above structure, through the setting of the adjustment mechanism, the overall height of the foot weighing sensor can be adjusted to meet the foot weighing of different equipment, and the adaptability is stronger.

[0031] Second Embodiment:

[0032] Based on the first embodiment, please refer to Figure 4 and Figure 5 , Figure 4 which is a schematic structural diagram of the foot weighing sensor of the second embodiment, Figure 5 and Figure 4 is a partial enlarged structural view at B of

[0033] The present invention provides a foot weighing sensor which further includes a heat dissipation plate 201.

[0034] For this specific embodiment, the heat dissipation plate 201 is provided on the outer wall of the support portion 108. Heat dissipation grooves 202 are provided through the heat dissipation plate 201. The heat dissipation grooves 202 correspond to the servo motor 105. Through the arrangement of the heat dissipation plate 201 and the heat dissipation grooves 202, the interior of the support portion 108 is kept in communication with the outside air, so that the heat generated by the servo motor 105 during operation is carried away by the flowing air.

[0035] Among them, a placement groove 203 is provided at one end of the heat dissipation plate 201 extending to the outside of the support portion 108. The placement groove 203 penetrates the heat dissipation grooves 202. A filter screen 204 is provided inside the placement groove 203. Through the arrangement of the filter screen 204, dust in the air is filtered to prevent excessive dust from entering the interior of the support portion 108 through the heat dissipation grooves 202.

[0036] When using a foot weighing sensor according to this embodiment, through the arrangement of the heat dissipation plate 201 and the heat dissipation grooves 202, the interior of the support portion 108 is kept in communication with the outside air, so that the heat generated by the servo motor 105 during operation is carried away by the flowing air. And through the arrangement of the filter screen 204, dust in the air is filtered to prevent excessive dust from entering the interior of the support portion 108 through the heat dissipation grooves 202.

[0037] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand the whole or part of the processes of the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A foot weighing sensor, comprising a weighing sensor body, a connection end, a support ball, a base and a fastening sleeve. The upper surface of the base is provided with the support ball. The bottom of the elastomer in the weighing sensor body is provided with a concave arc surface. One end of the elastomer in the weighing sensor body having the concave arc surface is arranged above the support ball. The top end of the weighing sensor body is provided with the connection end. The outside of the base is threadedly connected with the fastening sleeve. The fastening sleeve is arranged outside the bottom of the elastomer in the weighing sensor body and the support ball. Strain regions are arranged on both sides of the elastomer of the weighing sensor body. It is characterized in that, it further comprises an adjustment mechanism; The adjustment mechanism includes a servo motor, a threaded rod and a ball screw nut pair. The connection end includes a support portion and a connection portion. One end of the support portion is fixedly arranged above the weighing sensor body. The other end of the support portion is slidably provided with the connection portion. The outside of the top end of the connection portion is provided with a connection thread. Both the support portion and the connection portion are arranged in a hollow structure. The servo motor is arranged at the inner bottom of the support portion. The output end of the servo motor is provided with the threaded rod. The threaded rod is provided with the ball screw nut pair. The ball screw nut pair is connected to the inner bottom wall of the connection portion.

2. The foot weighing sensor according to claim 1, characterized in that, A limit block is arranged at one end of the threaded rod away from the servo motor, and the limit block is located inside the support portion.

3. The foot weighing sensor according to claim 2, characterized in that, Limit grooves are arranged on both sides inside the support portion, and limit plates are arranged on both sides outside the connection portion. The limit plates are adapted to the limit grooves.

4. The foot weighing sensor according to claim 3, characterized in that, A wiring hole is arranged on the outer side of the support portion, and the wiring hole corresponds to the servo motor.

5. The foot weighing sensor according to claim 4, characterized in that, The foot weighing sensor further comprises a heat dissipation plate. The heat dissipation plate is arranged on the outer side wall of the support portion. Heat dissipation grooves are arranged through the heat dissipation plate, and the heat dissipation grooves correspond to the servo motor.

6. The foot weighing sensor according to claim 5, characterized in that, One end of the heat dissipation plate extending to the outside of the support portion is provided with a placement groove. The placement groove penetrates the heat dissipation groove, and a filter screen is arranged inside the placement groove.

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