CN114526801B - Quick weighing device for electronic hanging scale - Google Patents

Abstract

The invention relates to the technical field of electronic hanging scales, in particular to a quick weighing device for an electronic hanging scale, which comprises a shell, wherein an upper opening and a lower opening are respectively formed in the upper end face and the lower end face of the shell, a lower connecting column is arranged in the lower opening, one end of the lower connecting column is hinged with a hook, the other end of the lower connecting column is fixedly provided with an upper pressing plate, a lower pressing plate is arranged below the upper pressing plate, a supporting plate is arranged below the lower pressing plate, a pressure sensor is fixedly arranged on the supporting plate, a pressing rod contacted with the pressure sensor is fixedly arranged on the lower pressing plate, a control unit, a display and a battery which are electrically connected are fixedly arranged in the shell, the pressure sensor is electrically connected with the control unit, an upper connecting column is arranged in the upper opening, one end of the lower connecting column is connected with a hanging ring, and the other end of the lower connecting column is fixedly provided with a connecting plate.

Description

Rapid weighing device for electronic crane scales

Technical field

The invention relates to the technical field of electronic crane scales, in particular to a rapid weighing device for electronic crane scales.

Background technique

At present, electronic crane scales are widely used in construction sites, warehouses, docks, workshops and other places. They are suitable for weighing hoisted materials. However, because the approximate weight of the object being measured cannot be known in advance, the weighing sensor may be damaged due to the overweight of the object being measured. The accuracy will decrease, and the service life of the electronic crane scale will be reduced. If it is too heavy, it will directly cause the sensor to fail, resulting in poor stability. In addition, when weighing items, the pair of items will drive the hook to rotate, and the hook will usually drive the entire electronic crane scale to rotate. It has a great impact on the connecting rope of the electronic crane scale and can easily cause the connecting rope to break. Therefore, a device is needed to solve the above problems.

Contents of the invention

In order to solve the problem in the existing technology that the approximate weight of the object to be measured cannot be known in advance, which leads to the overweight of the object to be measured and damage to the weighing sensor, which may cause the accuracy to decrease and the service life of the electronic crane scale to decrease, or in the worst case to directly cause the sensor to fail and lead to unstable use. In addition, when weighing items, the items drive the hook to rotate, and the hook usually drives the entire electronic crane scale to rotate, which has a great impact on the connecting rope of the electronic crane scale and can easily cause the connecting rope to break. , invented a rapid weighing device for electronic crane scales.

The technical solution of the present invention is to include a shell, wherein the upper and lower end surfaces of the shell are respectively provided with an upper opening and a lower opening, a lower connecting column is provided in the lower opening, and one end of the lower connecting column is hinged outside the shell. There is a hook, and the other end extends into the shell and is fixed with an upper pressure plate. A lower pressure plate is provided below the upper pressure plate. A support plate is provided below the lower pressure plate. A pressure sensor is fixed on the support plate. On the lower pressure plate A pressure rod in contact with the pressure sensor is fixed. An electrically connected control unit, display and battery are fixed in the housing. The pressure sensor is electrically connected to the control unit. An upper connecting post is provided in the upper opening. One end of the upper connecting post outside the shell is connected with a hanging ring, and the other end is fixed with a connecting plate inside the shell.

Preferably, the upper pressure plate is provided with a number of rolling grooves on its end surface close to the lower pressure plate, and the lower pressure plate is provided with a rolling ring groove in the same vertical direction as the rolling grooves on its end surface close to the upper pressure plate. The rolling grooves and rolling ring grooves There are balls inside.

Preferably, a plurality of limiting posts are fixed on the lower pressure plate, a number of limiting holes are opened on the support plate, and the limiting posts are slidably connected in the limiting holes.

Preferably, a number of guide posts are fixed on the support plate, a number of guide holes are opened on the housing, the guide posts are slidably connected in the guide holes, and a buffer spring is provided on the outer cover of the guide posts.

Preferably, an upper protrusion is fixed on the support plate, and a lower protrusion is fixed on the housing in a vertical direction at the same time as the upper protrusion. The upper protrusion and the lower protrusion are electrically connected to the control unit, The control unit is electrically connected to a buzzer.

Preferably, the lower connecting column is provided with a hinge groove at one end outside the housing, and the hook is hingedly connected in the hinge groove through a connecting shaft.

Preferably, a connecting head is fixed on one end of the upper connecting column outside the housing, and the hanging ring is detachably fixed on the connecting head through a connecting bolt.

The following beneficial effects can be achieved by adopting the technical solution of the present invention: (1) Through the lower connecting column, hook, upper pressure plate, lower pressure plate, support plate, and pressure sensor, it is convenient for the hook to drive the lower connecting column to move downward after connecting items, and the lower connection The column drives the upper pressure plate to move downward, the upper pressure plate drives the lower pressure plate to move downward, and the lower pressure plate presses the pressure sensor and the support plate to move downward, and then the weight of the item is measured through the pressure received by the pressure sensor; (2) Through the control unit and battery and display screen are used to convert the pressure on the pressure sensor into a digital signal, and then display it on the display screen; (3) The entire weighing device can be hoisted using the hanging ring through the upper connecting column, connecting plate, connecting head and hanging ring. up, thereby making it easier for the hook below to hook items for weighing; (4) Through the fixed groove, rolling ring groove and balls, the lower connecting column can drive the upper platen to rotate relative to the lower platen, preventing the items from driving the hook and the lower connecting column when they rotate. The shell rotates to avoid affecting the connection stability of the entire device; (5) The lower pressure plate and the support plate are easily connected through the limit column and the limit hole to prevent the lower pressure plate and the support plate from rotating relative to each other, thereby affecting the pressure rod and pressure sensor. (6) Through the guide pillar, guide hole and buffer spring, (7) through the upper bulge, lower bulge and buzzer, it is easy to detect whether the weight of the weighing item is overweight, and the buzzer will sound when it is overweight. The sound provides a warning to avoid damage to the weighing device caused by excessive weight of items; the technical solution of the present invention has broad application prospects in the technical field of electronic crane scales.

Description of drawings

Figure 1 is a cross-sectional view of a rapid weighing device for an electronic crane scale according to the present invention.

Figure 2 is an enlarged view of area A in Figure 1.

Among them, 1. Shell, 2. Lower opening, 3. Lower connecting column, 4. Hinge groove, 5. Hinge shaft, 6. Hook, 7. Upper opening, 8. Upper connecting column, 9. Connecting plate, 10. Connection Head, 11. Hanging ring, 12. Connecting bolt, 13. Upper pressure plate, 14. Lower pressure plate, 15. Pressure rod, 16. Pressure sensor, 17. Support plate, 18. Limiting rod, 19. Limiting hole, 20 , Guide column, 21. Buffer spring, 22. Guide hole, 23. Upper protrusion, 24. Lower protrusion, 25. Buzzer, 26. Control unit, 27. Display screen, 28. Battery.

Detailed ways

The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without any creative work fall within the scope of protection of the present invention. In the description of the present invention, it should be noted that: The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on that shown in the accompanying drawings The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. .

Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance in the description of the present invention. It should be noted that unless otherwise expressly stated Regulations and limitations, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. ; It can be directly connected, or it can be indirectly connected through an intermediary, or it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

The rapid weighing device for electronic crane scales shown in Figure 1-2 includes a shell 1, which facilitates isolation and protection of the internal structure through the shell 1 to prevent dust from falling into it and affecting its use. The upper and lower end surfaces of the shell 1 are respectively provided with an upper opening 7 and a lower opening 2. A lower connecting column 3 is provided in the lower opening 2. One end of the lower connecting column 3 is hinged with a hook 6 outside the shell 1, and the other end extends into the shell 1. And the upper pressure plate 13 is welded or removably fixed with bolts, so that the lower connecting column 3 and the upper pressure plate 13 are connected together to form a whole, and then the items that need to be weighed are hooked through the hook 6, so that the items drive the lower connecting column 3 and the lower The pressure plate 14 moves downward relative to the housing 1 . Specifically, the lower connecting column 3 has a hinge groove 4 at one end outside the housing 1, and the hook 6 is hingedly connected in the hinge groove 4 through the connecting shaft 5, so as to facilitate the hinge connection between the lower connecting column 3 and the hook 6 through the hinge shaft 5. This facilitates the quick disassembly and assembly of the lower connecting column 3 and the hook 6 . A lower pressure plate 14 is provided below the upper pressure plate 13, and a support plate 17 is provided below the lower pressure plate 14. The upper pressure plate 13 is slidingly connected to the lower pressure plate 14, so that the upper pressure plate 13 drives the lower pressure plate 14 to move downward. The sliding connection of the pressure plate 14 allows the upper pressure plate 13 to rotate relative to the lower pressure plate 14 and further to the housing 1 when the object drives the hook 6 and the lower connecting column 3 to rotate, thus preventing the rotation of the entire device from affecting the stability of the connection. A number of pressure sensors 16 are detachably fixed on the support plate 17 through bolts, and a pressure rod 15 in contact with the pressure sensor 16 is welded and fixed on the lower pressure plate 14, so that the lower pressure plate 14 moves downward to realize that the pressure rod 15 presses the pressure sensor 16. The pressure sensor 16 detects the pressure of the pressure rod 15, thereby realizing signal detection and output of the weight of the object. An electrically connected control unit 26, a display and a battery 28 are removably fixed in the housing 1 through screws. The pressure sensor 16 is electrically connected to the control unit 26. The control unit 26 is a common control circuit board on the market, which facilitates the use of the control unit 26. Receive and process the signal transmitted by the pressure sensor 16, and convert the signal into a digital signal and output it on the display screen 27, so as to facilitate intuitive viewing of the weight of the item. At the same time, the battery 28 is used to work for the control unit 26, the pressure sensor 16 and the display screen 27. Provide electrical energy. An upper connecting column 8 is provided in the upper opening 7. One end of the upper connecting column 8 outside the shell 1 is connected to a hanging ring 11, and the other end is welded or detachably fixed with a connecting plate 9 inside the shell 1, so that the connecting plate 9 is connected to the outer shell 1. The upper connecting posts 8 are connected together to form a whole, and the housing 1 is supported through the connecting plate 9. At the same time, the entire device is suspended in the air through the hanging ring 11, so that the lower hanging ring 11 can easily hang items. Specifically, the upper connecting column 8 has a connecting head 10 welded and fixed at one end outside the housing 1, and the hanging ring 11 is detachably fixed on the connecting head 10 through the connecting bolt 12, so that the connecting head 10 and the upper connecting column 8 are connected together to form As a whole, it is convenient to realize the detachable fixed connection between the hanging ring 11 and the upper connecting column 8 through the connecting head 10 and the connecting bolt 12, and to facilitate the quick disassembly and assembly of the hanging ring 11 and the upper connecting column 8.

As shown in Figure 1-2, a rapid weighing device for an electronic crane scale is provided. The upper platen 13 has a number of rolling grooves on its end near the lower platen 14. The lower platen 14 has an end face close to the upper platen 13 and is vertically aligned with the rolling grooves. direction of the rolling ring groove, and the rolling groove and the rolling ring groove are provided with balls, so that the balls can be fixedly connected in the rolling groove and the rolling ring groove to reduce the friction between the upper pressure plate 13 and the lower pressure plate 14, and facilitate the relative lowering of the upper pressure plate 13 The pressure plate 14 rotates.

As shown in Figure 1-2, a rapid weighing device for electronic crane scales has a number of limit columns welded and fixed on the lower pressure plate 14, a number of limit holes 19 are opened on the support plate 17, and the limit columns are slidingly connected to the limit holes. 19, it is convenient to realize the connection and limitation between the lower pressure plate 14 and the support plate 17 through the limit column and the limit hole 19, so as to prevent the lower pressure plate 14 from rotating relative to the support plate 17 and affecting the contact between the pressure rod 15 and the pressure sensor 16. A number of guide posts 20 are welded and fixed on the support plate 17, and a number of guide holes 22 are provided in the shell 1. The guide posts 20 are slidingly connected in the guide holes 22, so that the connection between the shell 1 and the support plate 17 can be realized through the guide posts 20 and the guide holes 22. to prevent the support plate 17 from rotating relative to the housing 1. The outer cover of the guide column 20 is provided with a buffer spring 21, which is convenient for providing elastic buffering to the support plate 17 through the buffer spring 21, so as to prevent the hook 6 from lowering the connecting column 3 to drive the upper pressure plate 13 when the items are weighed. The upper pressure plate 13 drives the lower pressure plate 14 and the lower pressure plate 14. The pressure plate 14 drives the pressure rod 15 to violently hit the pressure sensor 16, causing damage to the pressure sensor 16. At the same time, it does not affect the pressure sensor 16 to receive the pressure transmitted from the object. At the same time, the limit rod 18 and the limit hole 19, the guide column 20 and the guide hole are used. 22, the upper pressure plate 13 can rotate relative to the lower pressure plate 14 and the housing 1.

As shown in Figure 1-2, a fast weighing device for electronic crane scales has an upper protrusion 23 removably fixed on the support plate 17 through screws, and a vertically aligned upper protrusion 23 is fixed on the housing 1 through screws. The lower protrusion 24, the upper protrusion 23 and the lower protrusion 24 are electrically connected to the control unit 26. The control unit 26 is electrically connected to a buzzer 25, so that the weight hung on the hook 6 is too large and exceeds the weight of the weighing device. When weighing items within the weighing limit, the upper protrusion 23 and the lower protrusion 24 can come into contact, allowing the buzzer 25 to work and sound an alarm.

The above-mentioned embodiments only express several implementation modes of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the patent of the present invention should be determined by the appended claims.

Claims (5)

1. The quick weighing device for the electronic hanging scale comprises a shell (1), and is characterized in that an upper opening (7) and a lower opening (2) are respectively formed in the upper end face and the lower end face of the shell (1), a lower connecting column (3) is arranged in the lower opening (2), one end of the lower connecting column (3) is hinged with a hook (6) outside the shell (1), the other end of the lower connecting column extends into the shell (1) and is fixedly provided with an upper pressing plate (13), a lower pressing plate (14) is arranged below the upper pressing plate (13), a supporting plate (17) is arranged below the lower pressing plate (14), a pressure sensor (16) is fixed on the supporting plate (17), a pressing rod (15) in contact with the pressure sensor (16) is fixed on the lower pressing plate (14), a control unit (26), a display and a battery (28) are electrically connected in the shell (1), an upper connecting column (8) is arranged in the upper opening (7), and one end (9) of the upper connecting column (8) is connected with the outer shell (1) in a connecting ring (9); the end face, close to the lower pressing plate (14), of the upper pressing plate (13) is provided with a plurality of rolling grooves, the end face, close to the upper pressing plate (13), of the lower pressing plate (14) is provided with a rolling ring groove in the same vertical direction with the rolling grooves, and the rolling grooves and the rolling ring grooves are internally provided with balls; a plurality of guide posts (20) are fixed on the supporting plate (17), a plurality of guide holes (22) are formed in the shell (1), the guide posts (20) are slidably connected in the guide holes (22), and buffer springs (21) are sleeved outside the guide posts (20).

2. The quick weighing device for the electronic hanging scale according to claim 1, wherein a plurality of limiting columns are fixed on the lower pressing plate (14), a plurality of limiting holes (19) are formed in the supporting plate (17), and the limiting columns are slidably connected in the limiting holes (19).

3. The quick weighing device for the electronic hanging scale according to claim 1, wherein an upper protrusion (23) is fixed on the supporting plate (17), a lower protrusion (24) which is vertical to the upper protrusion (23) is fixed on the housing (1), the upper protrusion (23) and the lower protrusion (24) are electrically connected with a control unit (26), and the control unit (26) is electrically connected with a buzzer (25).

4. The quick weighing device for the electronic hanging scale according to claim 1, wherein a hinge groove (4) is formed in one end of the lower connecting column (3) outside the shell (1), and the hook (6) is hinged in the hinge groove (4) through a connecting shaft.

5. The quick weighing device for the electronic hanging scale according to claim 1, wherein one end of the upper connecting column (8) outside the shell (1) is fixed with a connector (10), and the hanging ring (11) is detachably fixed on the connector (10) through a connecting bolt (12).