A hanging livestock scale

Abstract

The invention relates to a hanging livestock scale, comprising a weighing plate, a hanging rope, a first fixed pulley, a second fixed pulley and a weighing device, wherein the weighing device comprises a weighing sensor and a counterweight, wherein one end of the hanging rope is fixedly connected to the weighing plate, and the other end of the hanging rope passes through the first fixed pulley and the second fixed pulley in sequence and is fixedly connected to the counterweight, wherein the counterweight is arranged directly below the weighing sensor, and the weighing sensor is inverted, with its measuring end facing downwards directly to the counterweight, and the weight of the counterweight is greater than the weight of the weighing plate; the hanging livestock scale inverts the weighing sensor above the weighing plate, and then connects the weighing plate to the counterweight through the hanging rope, and when the livestock is weighed on the weighing plate, the weighing plate is pressed down by its own weight, and the counterweight is driven to move upwards to squeeze the weighing sensor, thereby outputting the weight of the measured livestock; since the weighing sensor is located above and away from the measuring plate, it will not be contaminated by dirt, and thus the weighing sensor can be effectively prevented from being polluted and corroded.

Description

Technical Field

[0001] The invention relates to the technical field of animal husbandry scales, in particular to a hanging animal husbandry scale. Background Art

[0002] In large-scale farms, it is necessary to measure the weight of the animals regularly, which is helpful for farmers to detect the growth of the animals so as to make targeted adjustments. For large livestock, since their weight can generally reach hundreds of kilograms, they are generally weighed on a platform scale. When measuring, these livestock are driven onto the scale one by one to measure their weight.

[0003] Since the time for livestock to urinate and defecate is not restricted, for large-scale farms, since there are many large livestock that need to be weighed, it is inevitable that some livestock will defecate and urinate on the scale.

[0004] At present, most domestic livestock scales have a structure where the weighing sensor is placed under the scale body. This structure is simple, easy to operate and easy to manufacture. However, when the staff flushes the scale regularly, the wastewater generated by the flushing will flow to the bottom of the scale surface, contaminating and corroding the weighing sensor under the scale surface, affecting the measurement accuracy and shortening its service life. Summary of the invention

[0005] In view of this, it is necessary to provide a hanging livestock scale to solve the technical problem in the prior art that livestock excrete urine and feces during weighing, which is easily contaminated on the weighing sensor during cleaning and corrodes the weighing sensor.

[0006] The invention provides a hanging livestock scale, which comprises a weighing plate, a hanging rope, a first fixed pulley, a second fixed pulley and a weighing device, wherein the weighing device comprises a weighing sensor and a counterweight, wherein one end of the hanging rope is fixedly connected to the weighing plate, and the other end of the hanging rope passes through the first fixed pulley and the second fixed pulley in sequence and is fixedly connected to the counterweight, wherein the counterweight is arranged directly below the weighing sensor, the weighing sensor is inverted, and a measuring end of the weighing sensor faces downward to face the counterweight, and a first distance is formed between the counterweight and the measuring end of the weighing sensor, and the weight of the counterweight is greater than the weight of the weighing plate, so that the weighing plate is suspended in the air and a second distance is formed between the weighing plate and the ground, and the second distance is greater than the first distance; the measured livestock on the weighing plate can use its own weight to press down the weighing plate, drive the counterweight to move upward, and press the measuring end of the weighing sensor, so that the weighing sensor measures the weight of the measured livestock.

[0007] Furthermore, the weighing plate is rectangular, and the hanging livestock scale also includes an upward slope portion and a downward slope portion arranged on opposite sides of the weighing plate.

[0008] Furthermore, the height of the ascending slope portion is higher than that of the descending slope portion, and anti-slip grooves are arranged on the slope surfaces of the ascending slope portion and the descending slope portion.

[0009] Furthermore, the suspended livestock scale also includes guide rods arranged one-to-one corresponding to the corners of the weighing plate, each guide rod includes a rod body and a plurality of guide rollers, the rod body is vertically arranged, and its cross-section is L-shaped, the rod body is arranged at the corner of the weighing plate and forms a gap with the side of the weighing plate, an installation groove is opened on the inner side of the weighing plate, the guide roller part is built into the installation groove and is rotatably connected to the installation groove, the other part of the guide roller extends into the gap and abuts against the side of the weighing plate, and the rotation direction of the guide roller is vertical.

[0010] Furthermore, the guide rod also includes an auxiliary fixed pulley, which is fixedly connected to the top inner side of the rod body. The suspension rope includes a main rope and multiple branch ropes. One end of the branch rope is fixedly connected to the upper surface of the weighing plate, and the other end thereof passes around the auxiliary fixed pulley one by one and is fixedly connected to the main rope. The end of the main rope away from the branch rope passes through the first fixed pulley and the second fixed pulley in sequence and is fixedly connected to the counterweight block.

[0011] Furthermore, the weighing device also includes a weighing shell and a force equalizing plate. A weighing cavity is formed in the weighing shell. A first through hole is opened on the top of the weighing shell to connect to the weighing cavity. The weighing sensor is fixedly connected to the inner top surface of the weighing cavity, and its measuring end is fixedly connected to the force equalizing plate. A second through hole coaxial with the first through hole is opened on the force equalizing plate. The main rope passes through the first through hole and the second through hole in sequence and is fixedly connected to the counterweight block.

[0012] Furthermore, the weighing device also includes a bearing plate, which is built into the weighing cavity and located below the force equalizing plate. The bearing plate is fixedly connected to the inner wall of the weighing cavity, and the counterweight block is arranged on the bearing plate.

[0013] Furthermore, the hanging livestock scale also includes a guardrail arranged above the weighing plate, both ends of the guardrail are fixedly connected to the rod body, and the guardrail is parallel to the upward slope portion and points in the direction of the downward slope portion.

[0014] Furthermore, the weighing device is arranged on a side of the weighing plate close to one of the guardrails.

[0015] Compared with the prior art, the present hanging livestock scale places the weighing sensor upside down above the weighing plate, and then connects the weighing plate to the counterweight through a hanging rope. When the livestock is weighed on the weighing plate, it uses its own weight to press down the weighing plate, driving the counterweight to move upward to squeeze the weighing sensor, thereby measuring the weight of the measured livestock. Since the weighing sensor is located above and away from the measuring plate, it will not be contaminated by dirt, effectively preventing the weighing sensor from being contaminated and corroded. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a front view of a hanging livestock scale provided by the present invention;

[0017] Figure 2A side view of the hanging livestock scale provided by the present invention;

[0018] Figure 3 A partial top view of the hanging livestock scale provided by the present invention;

[0019] Figure 4 for Figure 1 Cross-sectional view of the weighing device. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0021] See also Figures 1 to 4 The hanging livestock scale comprises a weighing plate 1, a guide rod 2, an upward slope portion 3, a downward slope portion 4, a guardrail 5, a hanging rope 6, a first fixed pulley 7, a second fixed pulley 8 and a weighing device 9, which can be used to weigh the weight of livestock in a breeding farm.

[0022] The weighing plate 1 is usually a rectangular structure, and the livestock stands on the weighing plate 1 for measurement during weighing.

[0023] Four guide rods 2 are correspondingly arranged at the four corners of the weighing plate 1, and each guide rod 2 includes a rod body 21, a guide roller 22 and an auxiliary fixed pulley 23. The rod body 21 is vertically arranged, and its cross section is L-shaped. The rod body 21 is arranged at the corner of the weighing plate 1, so that the two sides of the rod body 21 are respectively parallel to the two sides of this corner, and a certain gap is maintained. A mounting groove is provided on the inner side of the rod body 21, and the guide roller 22 is partially built into the mounting groove and rotatably connected with the mounting groove. The other part of the guide roller 22 extends into the gap and abuts against the side of the weighing plate 1. The rotation direction of the guide roller 22 is vertical. When the weighing plate 1 moves up and down, the guide roller 22 can play a role of auxiliary guidance. The auxiliary fixed pulley 23 is fixedly connected to the top of the inner side of the rod body, and plays a role of auxiliary guidance for the suspension rope 6.

[0024] An upward slope portion 3 and a downward slope portion 4 are respectively arranged on opposite sides of the weighing plate 1. The sections of the upward slope portion 3 and the downward slope portion 4 are both triangular, so that livestock can walk on and off the weighing plate conveniently. Anti-skid grooves are arranged on the slopes of the upward slope portion 4 and the downward slope portion 5 to prevent livestock from slipping during walking. And the height of the highest point of the upward slope portion 4 is higher than the height of the highest point of the downward slope portion 4.

[0025] A pair of sides of the weighing plate 1 are provided with an upward slope 3 and a downward slope 4, and a guardrail 5 is provided above the other pair of sides. Both ends of the guardrail 5 are respectively fixedly connected to the rod body 21 to regulate the walking direction of the livestock so that they walk from the upward slope 3 to the downward slope 4.

[0026] The suspension rope 6 includes a main rope 61 and a plurality of branch ropes 62. There are four branch ropes 62, which correspond to the four corners of the weighing plate 1. One end of the branch rope 62 is fixedly connected to the upper surface of the weighing plate 1, and then passes vertically upward around the auxiliary fixed pulley 23 and is fixedly connected to one end of the main rope 61. The other end of the main rope 61 passes sequentially around the first fixed pulley 7 and the second fixed pulley 8 and is fixedly connected to the counterweight 95 in the weighing device 9.

[0027] The weighing device 9 is arranged on the side of the weighing plate 1 opposite to one of the guardrails 5, so as not to interfere with the walking of the livestock. The weighing device includes a weighing shell 91, a weighing sensor 92, a force equalizing plate 93, a bearing plate 94 and a counterweight 95. A weighing cavity is formed in the weighing shell 91, and a first through hole is provided at the top of the weighing shell 91 to connect the weighing cavity. The weighing sensor 92 is built into the weighing cavity and fixedly connected to the inner top surface of the weighing cavity. The weighing sensor 92 is inverted, and the measuring end is fixedly connected to the force equalizing plate 93 vertically downward, and a second through hole coaxial with the first through hole is provided on the force equalizing plate 93. A bearing plate 94 is arranged below the force equalizing plate 93, and the bearing plate 94 is built into the weighing cavity and fixedly connected to the inner wall of the weighing cavity, and the counterweight 95 is placed on the bearing plate 94. The distance between the upper surface of the counterweight 95 and the lower surface of the force equalizing plate 93 is the first spacing. The main rope passes through the first through hole and the second through hole in sequence and is fixedly connected to the counterweight block 95 .

[0028] The weight of the counterweight 95 should be greater than the weight of the weighing plate 1, so that the weighing plate 1 is suspended in the air, and a second distance is formed between the weighing plate 1 and the ground, which is greater than the first distance. However, the amount of the second distance cannot be too large, and the livestock standing on the weighing plate 1 should be able to pull the counterweight 95.

[0029] When the weighing plate 1 is empty, since the weight of the counterweight 95 is greater than that of the weighing plate 1, the weighing plate 1 is pulled up, and the height of its upper surface is the same as the height of the highest point of the upward slope portion 3. The counterweight 95 is placed on the bearing plate 94, and the bearing plate 94 bears the excess weight of the counterweight 95.

[0030] When the livestock walks onto the weighing plate 1 from the upward slope 3, the weight of the livestock plus the weighing plate 1 is greater than the weight of the counterweight 95. The livestock presses down the weighing plate 1 by its own weight, and pulls the counterweight 95 upward through the suspension rope 6 until it is blocked by the force equalizing plate 93. The counterweight 95 squeezes the force equalizing plate 93, and the pressure generated is obtained by the weighing sensor 92. According to the force analysis, it is easy to know that the weight of the weighing plate 1 plus the weight of the livestock is equal to the weight of the counterweight 95 plus the supporting force of the force equalizing plate 93. The weight of the weighing plate 1 and the counterweight 95 are known, and the supporting force of the force equalizing plate 93 can be obtained from the weighing sensor 92. Therefore, the weight of the livestock is equal to the weight of the counterweight 95 minus the weight of the weighing plate 1 plus the reading of the weighing sensor 92. Therefore, it is only necessary to set the measurement starting point of the weighing sensor 92 to the weight of the counterweight 95 minus the weight of the weighing plate 1, so that the weight of the livestock can be directly read from the weighing sensor 92.

[0031] The implementation of the embodiments of the present invention has the following beneficial effects: the hanging livestock scale places the weighing sensor upside down above the weighing plate, and then connects the weighing plate to the counterweight block through a hanging rope. When the livestock is weighed on the weighing plate, the weighing plate is pressed down by its own weight, driving the counterweight block to move upward to squeeze the weighing sensor, thereby outputting the weight of the measured livestock. Since the weighing sensor is located above and away from the measuring plate, it will not be contaminated by dirt, effectively preventing the weighing sensor from being contaminated and corroded.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A hanging livestock scale, characterized in that: It includes: A weighing plate, a suspension rope, a first fixed pulley, a second fixed pulley and a weighing device, wherein the weighing device comprises a weighing sensor and a counterweight, wherein one end of the suspension rope is fixedly connected to the weighing plate, and the other end of the suspension rope passes through the first fixed pulley and the second fixed pulley in sequence and is fixedly connected to the counterweight, wherein the counterweight is arranged directly below the weighing sensor, the weighing sensor is inverted, and its measuring end faces downwardly to the counterweight, and a first distance is formed between the counterweight and the measuring end of the weighing sensor, and the weight of the counterweight is greater than the weight of the weighing plate, so that the weighing plate is suspended in the air and a second distance is formed between the weighing plate and the ground, and the second distance is greater than the first distance; The measured livestock on the weighing plate can use its own weight to press down the weighing plate, drive the counterweight block to move upward, and squeeze the measuring end of the weighing sensor, so that the weighing sensor measures the weight of the measured livestock; The hanging livestock scale also includes guide rods arranged one by one in correspondence with the corners of the weighing plate, each of the guide rods includes a rod body and a plurality of guide rollers, the rod body is arranged vertically, and its cross section is L-shaped, the rod body is arranged directly opposite the corner of the weighing plate, so that the two sides of the rod body are respectively parallel to the two sides of the corresponding corner, and a gap is formed with the side of the weighing plate, a mounting groove is opened on the inner side of the weighing plate, the guide roller part is built into the mounting groove, and is rotatably connected to the mounting groove, the other part of the guide roller extends into the gap and abuts against the side of the weighing plate, and the rotation direction of the guide roller is vertical; The weighing device also includes a weighing shell and a force equalizing plate, a weighing cavity is formed in the weighing shell, a first through hole is provided on the top of the weighing shell to communicate with the weighing cavity, the weighing sensor is fixedly connected to the inner top surface of the weighing cavity, and a measuring end thereof is fixedly connected to the force equalizing plate, a second through hole coaxial with the first through hole is provided on the force equalizing plate, and a main rope passes through the first through hole and the second through hole in sequence to be fixedly connected to the counterweight block; The weighing device also includes a bearing plate, which is built into the weighing cavity and located below the force equalizing plate. The bearing plate is fixedly connected to the inner wall of the weighing cavity, and the counterweight block is arranged on the bearing plate.

2. The hanging livestock scale according to claim 1, characterized in that: The weighing plate is rectangular, and the hanging livestock scale further comprises an upward slope portion and a downward slope portion arranged on opposite sides of the weighing plate.

3. The hanging livestock scale according to claim 2, characterized in that: The height of the upward slope portion is higher than that of the downward slope portion, and anti-slip grooves are arranged on the slope surfaces of the upward slope portion and the downward slope portion.

4. The hanging livestock scale according to claim 3, characterized in that: The guide rod also includes an auxiliary fixed pulley, which is fixedly connected to the top inner side of the rod body. The suspension rope includes a main rope and multiple branch ropes. One end of the branch rope is fixedly connected to the upper surface of the weighing plate, and the other end thereof passes around the auxiliary fixed pulley one by one and is fixedly connected to the main rope. The end of the main rope away from the branch rope passes through the first fixed pulley and the second fixed pulley in sequence and is fixedly connected to the counterweight block.

5. The hanging livestock scale according to claim 4, characterized in that: The hanging livestock scale also includes a guardrail arranged above the weighing plate, both ends of the guardrail are fixedly connected to the rod body respectively, and the guardrail is parallel to the upward slope portion and points in the direction of the downward slope portion.

6. The hanging livestock scale according to claim 5, characterized in that: The weighing device is arranged on a side of the weighing plate close to one of the guardrails.

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