Overload protection device of weighing sensor

Abstract

The utility model discloses an overload protection device of a weighing sensor, which relates to the technical field of weighing sensors and comprises a weighing sensor body, an assembly part is fixedly mounted at the top of the weighing sensor body, a weighing rod is movably mounted at the top of the assembly part, and a weighing plate is fixedly mounted at the top of the weighing rod. A connecting block is movably installed at the bottom of the assembly part, and a weighing device is movably installed at the bottom of the connecting block. The lower pressing plate is matched with the buffering column to conduct buffering extrusion, the damping assembly is pushed to compress the compression rebounding column, the sliding block on the outer side of the damping assembly slides in the sliding groove in a buffering mode, and therefore the function of consuming acting force is achieved; and a rubber sleeve is pressed for auxiliary buffering, so that the telescopic buffering performance of the equipment is improved, and the protection function is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing sensors, in particular to an overload protection device for a weighing sensor. Background Art

[0002] A weighing sensor is a device that converts weight or force into an electrical signal. It is widely used in various weighing and force measurement systems. Current weighing sensors only have a measurement range and no overload protection device. Once the weight exceeds its measurement range, the weighing sensor will be damaged, causing immeasurable losses to industrial production.

[0003] Among the existing technical solutions, announcement number: CN213364010U is proposed, which is an anti-overload protection device for a weighing sensor, including a weighing platform, a weighing pan, a buffer sleeve, a pressure head upper body, a pressure head, a ball, a dust ring and a pressure seat. The main feature is to add a pressure-bearing piston whose periphery fits with the pressure head upper body at the top of the ball that constitutes the pressure-bearing assembly, and a spring sleeved on the pressure-bearing piston.

[0004] In order to solve the problem that all weight acts on the sensor through the pressure-bearing assembly during operation, and once the overload range is exceeded, permanent damage may be caused to the weighing sensor, the prior art uses a weighing plate to compress the spring that bears the specified weight through a buffer sleeve and the upper body of the pressure head, causing the weighing plate to move down and contact the limit block, so that the pressure generated by the weight exceeding the overload range is transferred to the weighing platform through the limit block, thereby effectively avoiding overload damage to the weighing sensor. However, there may be a problem that the buffer vibration amplitude of the protective device is large during the load-bearing process of the weighing sensor, affecting the safe operation of the weighing sensor. Utility Model Content

[0005] The purpose of the utility model is to provide an overload protection device for a weighing sensor to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An overload protection device for a weighing sensor comprises a weighing sensor body, a mounting part is fixedly mounted on the top of the weighing sensor body, a weighing rod is movably mounted on the top of the mounting part, and a weighing plate is fixedly mounted on the top of the weighing rod.

[0008] A connecting block is movably mounted on the bottom of the assembly part, a weighing device is movably mounted on the bottom of the connecting block, one end of the weighing device is fixedly connected to a wiring terminal, and a protective mechanism is arranged on the top of the weighing device.

[0009] A connecting hole is provided at one end of the weighing sensor body, and a fixing mechanism is arranged inside the connecting hole.

[0010] A further improvement of the technical solution of the utility model is that the protection mechanism comprises a pressing ring, and a pushing column is movably installed at the bottom of the pressing ring.

[0011] By adopting the above technical solution, the pressing ring and the pushing column cooperate with each other to achieve the function of pressing and weighing.

[0012] A further improvement of the technical solution of the utility model is that a clamping plate is fixedly installed on the inner wall of the weighing device, and the inner side of the clamping plate is movably installed on both sides of the pushing column.

[0013] By adopting the above technical solution, the weighing device, the clamping plate and the pushing column cooperate with each other to achieve the function of buffering and pushing.

[0014] A further improvement of the technical solution of the utility model is that a buffer column is movably installed at the bottom of the pushing column, a lower pressure plate is fixedly installed at the bottom of the buffer column, and a damping component is movably installed at the bottom of the lower pressure plate.

[0015] By adopting the above technical solution, the buffer column, the lower pressure plate and the damping component cooperate with each other to achieve the function of buffering consumption.

[0016] A further improvement of the technical solution of the utility model is that a rebound column is movably installed at the bottom of the damping component, a sleeve is fixedly connected to the bottom of the rebound column, and a sliding groove is opened at the top of the inner wall of the sleeve.

[0017] By adopting the above technical solution, the function of damping protection is achieved through the cooperation between the rebound column, the sleeve and the slide groove.

[0018] A further improvement of the technical solution of the utility model is that a telescopic column is fixedly installed at the bottom of the inner cavity of the damping component, a pressing block is movably sleeved at the bottom of the telescopic column, and a rubber sleeve is movably installed at the bottom of the pressing block.

[0019] By adopting the above technical solution, the telescopic column, the pressing block and the rubber sleeve cooperate with each other to achieve the function of buffering and damping.

[0020] A further improvement of the technical solution of the utility model is that the fixing mechanism comprises a threaded shaft, the internal thread of the threaded shaft is connected with a fixing bolt, and the top of the fixing bolt extends to the top of the assembly part.

[0021] By adopting the above technical solution, the threaded shaft and the fixing bolt cooperate with each other to achieve the function of threaded installation.

[0022] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0023] 1. The utility model provides an overload protection device for a weighing sensor. When the equipment is in a load-bearing overload state, the equipment pushes the connecting block, thereby driving the pressing ring to perform a pressing operation, and the pushing column presses the buffer column to achieve the function of buffering and expansion, which is beneficial to the overload protection of the device, thereby improving the protection function of the device and increasing the service life of the device.

[0024] 2. The utility model provides an overload protection device for a weighing sensor, in which a lower pressure plate cooperates with a buffer column to perform buffering and extrusion. The damping component is pushed, and then the compression rebound column is compressed. The slider on the outside of the damping component performs buffering and sliding inside the slide groove, thereby achieving the function of consuming the force. Then, during the downward pressure of the damping component, the telescopic column and the pressing block are driven to perform a pressing and telescopic action, and the rubber sleeve is pressed for auxiliary buffering, thereby improving the telescopic buffering performance of the equipment and further improving the protection function.

[0025] 3. The utility model provides an overload protection device for a weighing sensor, which is installed on the top of one end of the weighing sensor body through an assembly part and threadedly connected with a fixing bolt, so that the assembly part is conveniently fixedly installed on the top of the weighing sensor body, achieving the function of fixed installation, which is conducive to the convenient installation and disassembly of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 This is a schematic diagram of the main structure of the weighing sensor of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the weighing device of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the damping component of the utility model;

[0030] Figure 5 It is a schematic diagram of the telescopic column structure of the utility model.

[0031] In the figure: 1. Weighing sensor body; 2. Assembly parts; 3. Weighing rod; 4. Weighing plate; 5. Fixing bolt; 11. Weighing device; 12. Wiring terminal; 13. Pressing ring; 14. Connecting block; 15. Threaded shaft; 16. Telescopic column; 111. Clamping plate; 112. Pushing column; 113. Buffer column; 114. Lower pressure plate; 115. Damping assembly; 116. Rebound column; 117. Sleeve; 118. Slide; 161. Pressing block; 162. Rubber sleeve. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the embodiments:

[0033] like Figure 1-5 As shown, the utility model provides the following technical solutions.

[0034] Example 1

[0035] The present embodiment provides an overload protection device for a weighing sensor, comprising a weighing sensor body 1, a mounting part 2 is fixedly mounted on the top of the weighing sensor body 1, a weighing rod 3 is movably mounted on the top of the mounting part 2, a weighing plate 4 is fixedly mounted on the top of the weighing rod 3, a connecting block 14 is movably mounted on the bottom of the mounting part 2, a weighing device 11 is movably mounted on the bottom of the connecting block 14, one end of the weighing device 11 is fixedly connected to a wiring terminal 12, a protective mechanism is arranged on the top of the weighing device 11, the protective mechanism comprises a pressing ring 13, a pushing column 112 is movably mounted on the bottom of the pressing ring 13, and the inner wall of the weighing device 11 is fixedly mounted on the inner wall of the weighing device 11. A clamping plate 111 is fixedly installed, and the inner side of the clamping plate 111 is movably installed on both sides of the pushing column 112. A buffer column 113 is movably installed at the bottom of the pushing column 112, and a lower pressure plate 114 is fixedly installed at the bottom of the buffer column 113. The weighing plate 4 supports the object, presses the weighing rod 3 and the weighing device 11, and uses the weighing device 11 and the terminal 12 to transmit data to achieve the weighing function. When the equipment is overloaded, the connecting block 14 is pushed to drive the pressing ring 13 to press, so that the pushing column 112 presses the buffer column 113, and uses buffer compression to achieve the function of buffer protection, thereby increasing the protection function of the device.

[0036] Example 2

[0037] On the basis of Example 1, this embodiment provides a technical solution: preferably, a damping assembly 115 is movably installed at the bottom of the lower pressure plate 114, a rebound column 116 is movably installed at the bottom of the damping assembly 115, a sleeve 117 is fixedly connected to the bottom of the rebound column 116, a slide groove 118 is provided at the top of the inner wall of the sleeve 117, a telescopic column 16 is fixedly installed at the bottom of the inner cavity of the damping assembly 115, a pressing block 161 is movably sleeved at the bottom of the telescopic column 16, a rubber sleeve 162 is movably installed at the bottom of the pressing block 161, and the lower pressure plate 114 cooperates with the buffer column 113 to perform buffering and extrusion, and then pushes the damping assembly 115 to compress the rebound column 116, so that the slider outside the damping assembly 115 slides inside the slide groove 118 to achieve the function of consuming the force, and then when the damping assembly 115 is pressed down, it drives the telescopic column 16 and the pressing block 161 to be pressed and retracted, and cooperates with the rubber sleeve 162 for buffering, which is beneficial to telescopic buffering and beneficial to the device to increase the damping protection function.

[0038] Example 3

[0039] On the basis of Example 1, this embodiment provides a technical solution: preferably, a connecting hole is opened at one end of the weighing sensor body 1, and a fixing mechanism is arranged inside the connecting hole, the fixing mechanism includes a threaded shaft 15, and the internal thread of the threaded shaft 15 is connected with a fixing bolt 5, the top of the fixing bolt 5 extends to the top of the assembly part 2, and is installed on the top of one end of the weighing sensor body 1 through the assembly part 2, and is threadedly connected from the assembly part 2 with the fixing bolt 5, so that the assembly part 2 is fixedly installed on the top of the weighing sensor body 1, thereby achieving the function of fixed installation, which is conducive to the function of convenient installation and disassembly of the device.

[0040] The following is a detailed description of the working principle of the overload protection device of the weighing sensor.

[0041] like Figure 1-5 As shown, the weighing plate 4 is used to support the object, press the weighing rod 3 and the weighing device 11, and use the weighing device 11 and the terminal 12 to transmit data to achieve the weighing function. When the equipment is overloaded, the connecting block 14 is pushed to drive the pressing ring 13 to press, so that the pushing column 112 presses the buffer column 113, and the buffer compression is used to achieve the buffer protection function, thereby increasing the protection function of the device. Then, the lower pressing plate 114 cooperates with the buffer column 113 to perform buffer extrusion, and then pushes the damping component 115 to compress the rebound column 116, so that the outer side of the damping component 115 The slider slides inside the slide groove 118 to achieve the function of consuming the force, and then when the damping component 115 is pressed down, it drives the telescopic column 16 and the pressing block 161 to be pressed and retracted, and cooperates with the rubber sleeve 162 for buffering, which is beneficial to the telescopic buffering and the function of increasing the damping protection of the device. The assembly part 2 is installed on the top of one end of the weighing sensor body 1, and is threadedly connected from the assembly part 2 with the fixing bolt 5, so that the assembly part 2 is fixedly installed on the top of the weighing sensor body 1, achieving the function of fixed installation, which is beneficial to the function of convenient installation and disassembly of the device.

[0042] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An overload protection device for a weighing sensor, comprising a weighing sensor body (1), characterized in that: A mounting part (2) is fixedly mounted on the top of the weighing sensor body (1), a weighing rod (3) is movably mounted on the top of the mounting part (2), and a weighing plate (4) is fixedly mounted on the top of the weighing rod (3); A connecting block (14) is movably mounted at the bottom of the assembly part (2), a weighing device (11) is movably mounted at the bottom of the connecting block (14), one end of the weighing device (11) is fixedly connected to a wiring terminal (12), and a protective mechanism is arranged at the top of the weighing device (11); A connection hole is provided at one end of the weighing sensor body (1), and a fixing mechanism is provided inside the connection hole.

2. The overload protection device for a weighing sensor according to claim 1, characterized in that: The protection mechanism comprises a pressing ring (13), and a pushing column (112) is movably mounted on the bottom of the pressing ring (13).

3. The overload protection device for a weighing sensor according to claim 1, characterized in that: A clamping plate (111) is fixedly mounted on the inner wall of the weighing device (11), and the inner side of the clamping plate (111) is movably mounted on both sides of a pushing column (112).

4. The overload protection device for a weighing sensor according to claim 2, characterized in that: A buffer column (113) is movably mounted at the bottom of the pushing column (112), a lower pressing plate (114) is fixedly mounted at the bottom of the buffer column (113), and a damping assembly (115) is movably mounted at the bottom of the lower pressing plate (114).

5. The overload protection device for a weighing sensor according to claim 4, characterized in that: A rebound column (116) is movably mounted at the bottom of the damping assembly (115), a sleeve (117) is fixedly connected to the bottom of the rebound column (116), and a sliding groove (118) is provided at the top of the inner wall of the sleeve (117).

6. The overload protection device for a weighing sensor according to claim 4, characterized in that: A telescopic column (16) is fixedly mounted at the bottom of the inner cavity of the damping component (115), a pressing block (161) is movably sleeved at the bottom of the telescopic column (16), and a rubber sleeve (162) is movably mounted at the bottom of the pressing block (161).

7. The overload protection device for a weighing sensor according to claim 1, characterized in that: The fixing mechanism comprises a threaded shaft (15), the internal thread of the threaded shaft (15) is connected with a fixing bolt (5), and the top of the fixing bolt (5) extends to the top of the assembly part (2).

Images