A weighing system for storage

Abstract

The present invention discloses a weighing system for warehousing, comprising a base hung on a column, a load-bearing plate placed on the base, at least one pressure sensor arranged between the load-bearing plate and the base, the weighing system comprising a central control unit and a display electrically connected to the central control unit, an alarm device and a protective device, the protective device being fixedly mounted on the base, the protective device comprising a plug-in hole arranged on the column, a load-bearing column and a limit mechanism for limiting the position of the load-bearing column, a threshold being arranged in the central control unit, when the weight on the load-bearing plate is greater than the threshold, the limit mechanism releases the limit on the load-bearing column, so that the limit column is plugged into the plug-in hole, and the central control unit drives the alarm device to send an alarm signal, the present invention can accurately display the weight of the goods on the load-bearing plate through the display for the convenience of goods statistics, when the weight exceeds the upper limit value, the protective device can be activated in time, the safety performance of the shelf is enhanced, and the warehouse manager is reminded to make adjustments in time.

Description

Technical Field

[0001] The present invention relates to the field of weighing technology, in particular to a weighing system for warehousing. Background Art

[0002] There are a lot of shelves for storing goods in the warehouse. In order to facilitate the installation of the shelves, the columns and bottom plates of the shelves are usually designed to be detachable. During use, the bottom plate can be directly installed on the columns of the shelves.

[0003] In conventional shelves, the side walls of the shelf columns are welded with horizontal "V"-shaped hanging parts, and then the plug-in parts at the bottom of the bottom plate are plugged into the hanging parts to achieve the installation of the bottom plate. Then the goods are placed on the bottom plate.

[0004] Since the hanging parts and the columns are welded, when too much goods are placed on the bottom plate, the hanging parts will be detached from the columns, affecting the safety of goods storage. At present, when placing goods on the shelf, it is usually judged whether there is space left on the shelf to determine whether the goods can be placed again. This will cause the weight of the goods stored on each shelf to be inconsistent. If the density of the goods is large, it is easy to cause the weight of the goods on the bottom plate to exceed the upper limit, causing the hanging parts to be desoldered and the goods to fall.

[0005] When goods are placed directly on existing shelves, it is not convenient to count the weight of the goods, which makes it difficult to count the goods.

[0006] Therefore, how to design a weighing system that assists in counting goods while limiting the upper limit of goods that can be stored on shelves has become a technical problem that needs to be solved urgently by people in this field. Summary of the invention

[0007] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the present invention is to provide a weighing system for warehousing to solve the problem of weight recording and safety protection of goods placed on shelves.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A weighing system for warehousing includes a base hung on a column, a load-bearing plate placed on the base, at least one pressure sensor arranged between the load-bearing plate and the base, the weighing system includes a central control unit, a display, an alarm device and a protective device, the pressure sensor, display, alarm device and protective device are all electrically connected to the central control unit, the protective device is fixedly mounted on the base, the protective device includes a plug hole opened on the column, a load-bearing column and a limiting mechanism for limiting the position of the load-bearing column, a threshold value is arranged in the central control unit, when the weight on the load-bearing plate is greater than the threshold value, the limiting mechanism releases the limit on the load-bearing column, so that the limiting column is plugged into the plug hole, and the central control unit drives the alarm device to send an alarm signal.

[0010] Furthermore, the protective device also includes a casing fixed on the base, a chamber is provided in the casing, a guide channel is provided on the side of the casing facing the plug-in hole, the load-bearing column is slidably installed in the guide channel, and an elastic component is installed between the load-bearing column and the side wall of the chamber. In the initial state, the elastic component is compressed and the limiting mechanism limits the movement of the load-bearing column.

[0011] Furthermore, the limiting mechanism includes a clamping groove, a clamping wedge block and a driving device for driving the clamping wedge block to switch inside and outside the clamping groove.

[0012] Furthermore, the driving device includes an armature piece fixed on the clamping wedge, an electromagnet fixed on the inner wall of the chamber, and a first spring located between the clamping wedge and the electromagnet, the electromagnet is electrically connected to the central control unit, and in an initial state, the clamping wedge is inserted into the clamping groove.

[0013] Furthermore, a drag handle is provided on the outer side of the housing, and a pull rope is connected between the drag handle and the clamping wedge block.

[0014] Furthermore, a support frame extending upward is fixedly provided on the bottom wall of the chamber, a flip shaft is fixedly provided on the support frame, a flip plate is rotatably connected to the flip shaft, and the clamping wedge is fixed on the flip plate.

[0015] Furthermore, the alarm device includes a buzzer and a warning light, the buzzer and the warning light are arranged in parallel, and the weighing system also includes a power supply and a contact switch for controlling the operation of the buzzer and the warning light, and the contact switch is located on the main circuit of the alarm device.

[0016] Furthermore, the contact switch includes a first contact and a second contact, the first contact is mounted on the load-bearing column, and the second contact is fixedly mounted on the inner wall of the chamber, and when the load-bearing column is plugged into the socket, the first contact and the second contact are in contact to form a power supply path.

[0017] Compared with the prior art, the invention has the following beneficial effects: the invention places the goods on the load-bearing plate, and then uses the pressure sensor to display the weight of the goods on the display, which is convenient for counting the weight of the goods on the base, and can clearly observe whether the weight of the goods has reached the upper limit value, so that the shelf is maintained within a safe range;

[0018] When the goods on the base exceed the threshold set by the central control unit, the central control unit controls the alarm device to send out an alarm signal, so that the warehouse keeper can adjust the goods on the shelf in time;

[0019] The central control unit is used to control the action of the limit mechanism. When the weight is greater than the threshold, the limit mechanism releases the restriction on the load-bearing column so that the load-bearing column is plugged into the plug hole, thereby strengthening the stability between the base and the column, improving the bearing capacity of the base, and reducing the risk of the base falling off the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 An exploded view of the weighing structure of the present invention;

[0022] Figure 3 An exploded view of the protective device of the present invention;

[0023] Figure 4 This is a schematic diagram of the display installation structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the initial state of the protective device of the present invention;

[0025] Figure 6 for Figure 5 A partial enlarged view of

[0026] Figure 7 This is a schematic diagram of the working state of the protective device of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the limiting frame;

[0028] Fig. 9 It is a control schematic diagram of the central control unit of the present invention;

[0029] Fig.10 It is a circuit diagram of the present invention.

[0030] In the figure: 1. base; 11. support plate; 12. connector; 2. load-bearing plate; 21. limit frame; 211. avoidance groove; 3. pressure sensor; 4. display; 41. hanging frame; 411. limit strip; 42. hanging block; 421. hanging groove; 5. casing; 51. chamber; 52. guide channel; 61. support frame; 62. flip axis; 63. flip plate; 64. clamping wedge; 71. electromagnet; 72. armature piece; 73. first spring; 81. load-bearing column; 811. clamping groove; 812. guide hole; 82. connecting plate; 83. second spring; 84. guide rod; 91. first contact; 92. second contact; 93. drag handle; 94. pull rope; 95. buzzer; 96. warning light; 10. column; 101. hanging piece; 102. connector hole. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present embodiment provides a weighing system for warehousing, which is installed on each load-bearing plate of the storage shelf and is used to measure the weight of the goods placed on the load-bearing plate, so as to facilitate the statistics of the goods and at the same time indicate whether the goods on the load-bearing plate exceed the upper weight limit, so as to promptly strengthen the load-bearing capacity of the load-bearing plate.

[0033] In this embodiment, the shelf includes four vertically arranged columns 10, and the side walls of the columns 10 are provided with a plurality of groups of hanging parts 101 arranged along the height direction of the columns 10, wherein the hanging parts 101 are in a horizontal V-shape and are welded to the side walls of the columns 10. It also includes a plurality of groups of bases 1, the upper and lower end surfaces of the bases 1 are penetrated to reduce the weight of the bases 1, and the four corners of the bottom of the bases 1 are welded with plug-in parts 12 plugged into the hanging parts 101, so as to facilitate the rapid installation of the bases 1 on the columns 10. The above arrangement can realize the rapid disassembly of the shelf.

[0034] In this embodiment, if Figure 1 and Figure 2 As shown, a support plate 11 is fixed on the base 1, and a pressure sensor 3 is fixed on the upper side of the support plate 11 by bolts. Four pressure sensors 3 are provided, respectively located at the four corners of the base 1. The pressure sensor adopts a resistance strain gauge pressure sensor. A load-bearing plate 2 is placed on the pressure sensors 3 at the four corners, and the load-bearing plate 2 is used to place goods.

[0035] In this embodiment, in order to prevent the load-bearing plate 2 placed on the pressure sensor 3 from shaking, Figure 8 As shown, a limiting frame 21 is fixedly provided on the bottom wall of the load-bearing plate 2, and the limiting frame 21 is sleeved on the outside of the pressure sensor 3, wherein the side wall of the pressure sensor 3 abuts against the inner wall of the limiting frame 21, thereby limiting the shaking of the load-bearing plate.

[0036] Since the limiting frame 21 is sleeved on the outside of the pressure sensor 3, in order to facilitate the signal of the pressure sensor 3 to be outputted outwardly, in this embodiment, Figure 8 As shown, the side wall of the limiting frame 21 is provided with an avoidance groove 211 for leading out the line of the pressure sensor 3.

[0037] like Figure 2 and Fig. 9 As shown, a display 4 is fixedly mounted on the side wall of the base 1, and the weighing system further comprises a central control unit, an alarm device and a protective device, and the alarm device, the protective device, the display and the pressure sensor 3 are all electrically connected to the central control unit. Among them, a threshold is set in the central control unit, and this threshold is the upper limit of the safety of placing goods on the load-bearing plate 2.

[0038] When the goods are placed on the load-bearing plate 2, the load-bearing plate 2 applies gravity to the pressure sensor 3, and then transmits the electrical signal to the central control unit, which processes it and then displays the weight of the goods on the load-bearing plate 2 on the display 4, thereby realizing the weighing of the goods on the load-bearing plate 2. The data displayed on the display 4 include the weight of the goods on the load-bearing plate 2, the upper limit value that the load-bearing plate 2 can bear, i.e., the threshold value, and the difference between the threshold value and the weight of the goods, so as to display how much more goods can be placed on the load-bearing plate 2. At this time, the data on the display facilitates the recording of items on the shelf.

[0039] When the vertical weight of the goods on the load-bearing plate 2 is greater than the threshold set by the central control unit, the central control unit controls the alarm device to send an alarm signal to remind the warehouse manager to handle the goods on the shelf. At the same time, the central control unit controls the operation of the protective device to strengthen the stability relationship between the base 1 and the column 10, thereby enhancing the bearing capacity of the load-bearing plate 2.

[0040] In order to realize the installation of the display 4, in this embodiment, as Figure 4As shown, a hanging block 42 is fixedly provided on the side wall of the base 1 by bolts, a hanging frame 41 is fixedly provided on the back side of the display 4 and is hung on the hanging block 42, and hanging grooves 421 recessed inwardly are provided on the front and rear side walls of the hanging block 42, and a limiting bar 411 inserted into the hanging groove 421 is provided on the inner wall of the hanging frame 41. In this embodiment, the display 4 is inserted into the hanging block 42 from top to bottom, so that the display 4 is installed, and because the limiting bar 411 is inserted into the hanging groove 421, the left and right movement of the display 4 can be limited, thereby improving the stability of the display 4.

[0041] In this embodiment, if Figure 5 As shown, the protective device also includes a housing 5 fixed to the bottom of the base 1, a chamber 51 is provided in the housing 5, a plug hole 102 is provided on the column 10 at the lower side of the hanging member 101, and a guide channel 52 communicating with the chamber 51 is provided on the outer wall of the housing 5 facing the plug hole 102, and a load-bearing column 81 capable of sliding is provided in the guide channel 52. Figure 5 It is a schematic diagram of the load-bearing column 81 in its initial state, at which point a portion of the load-bearing column 81 is located inside the guide channel 52, and the other portion is located inside the chamber 51, and an elastic component for allowing the load-bearing column 81 to pop outward and a limiting mechanism for limiting the position of the load-bearing column 81 are fixedly provided between the load-bearing column 81 and the side wall of the chamber 51.

[0042] Through the above arrangement, when the weight of the goods on the load-bearing plate 2 is greater than the set threshold, the central control unit controls the limit mechanism to operate and release the restriction on the load-bearing column 81. At this time, the elastic component pushes the load-bearing column 81 to slide and extend into the plug hole 102, thereby enhancing the stability between the base 1 and the column 10. Even when the hanging piece 101 and the column 10 are desoldered and separated, the load-bearing column 81 can still limit the base 1 and the goods from falling downward, thereby improving the safety performance of the shelf.

[0043] In this embodiment, the elastic component is a second spring 83. In order to improve the stability of the base 1 after the load-bearing column 81 is plugged into the plug hole 102, two load-bearing columns 81 are provided and arranged horizontally. In order to achieve synchronous movement of the two load-bearing columns 81, as shown in FIG. Figure 6 As shown, the ends of the two load-bearing columns 81 located inside the chamber 51 are fixed with a same connecting plate 82 , wherein one end of the second spring 83 is fixed to the side wall of the chamber 51 , and the other end is fixed to the connecting plate 82 .

[0044] Since the load-bearing column 81 has a large travel distance during the movement, in order to improve the stability of the load-bearing column 81, in this embodiment, Figure 6As shown, a guide hole 812 extending inward is fixedly provided at the end of the load-bearing column 81, and a guide rod 84 extending into the guide hole 812 is fixedly provided on the side wall of the chamber 51. The guide rod 84 is fixed to the side wall of the chamber 51 by bolts, and the second spring 83 is sleeved on the outside of the guide rod 84.

[0045] In order to achieve the limitation of the load-bearing column 81, in this embodiment, as Figure 6 As shown, the limiting mechanism includes a snap-in groove 811 opened at the bottom of the load-bearing column 81. In the present embodiment, the snap-in groove 811 is a right triangle, with one right-angled side located at the bottom of the load-bearing column 81 and the other right-angled side away from the plug-in hole 102. The limiting mechanism also includes a snap-in wedge block 64 that can switch back and forth in the snap-in groove 811 and a driving device that drives the snap-in wedge block 64 to move.

[0046] In this embodiment, the clamping wedge 64 is in the shape of a triangular prism, and the cross section is a right triangle that cooperates with the clamping groove 811. The driving device includes a first spring 73 and an electromagnetic switch, wherein one end of the first spring 73 is fixed to the bottom wall of the chamber 51, and the other end is fixed to the clamping wedge 64. The electromagnetic switch includes an electromagnet 71 fixed to the bottom wall of the chamber 51 and an armature piece 72 fixed to the clamping wedge 64. The electromagnet 71 is electrically connected to the central control unit. When the weight of the goods on the load-bearing plate 2 exceeds the threshold, the central control unit controls the electromagnet 71 to be energized, thereby generating a magnetic force to attract the armature piece 72 to move to one side of the electromagnet 71, compressing the first spring 73, and driving the clamping wedge 64 to break away from the restriction of the clamping groove 811, thereby releasing the load-bearing column 81.

[0047] In this embodiment, the electromagnet 71 is energized for an instantaneous action. After the clamping wedge block 64 releases the restriction of the load-bearing column 81, the electromagnet 71 is powered off. At this time, the clamping wedge block 64 is pushed upward under the action of the first spring 73 and abuts against the bottom of the load-bearing column 81.

[0048] In the initial state, if Figure 6 As described above, the clamping wedge block 64 is inserted into the clamping groove 811. If the bottom end of the connecting plate 82 exceeds the lowest position of the load-bearing column 81, the clamping wedge block 64 and the connecting plate 82 are likely to touch each other. Therefore, in this embodiment, Figure 6 As shown, the bottom of the connecting plate 82 is flush with the bottom of the receiving portion 81 , thereby preventing the clamping wedge 64 from interfering with the connecting plate 82 .

[0049] In this embodiment, if Figure 6 and Figure 7As shown, the limiting mechanism also includes a support frame 61 fixed to the bottom wall of the chamber 51, a flip shaft 62 is fixed on the support frame 61, a flip plate 63 is rotatably connected to the flip shaft 62, the clamping wedge block 64 is fixedly installed on the upper wall of the flip plate 63, wherein the upper end of the first spring 73 is fixed to the flip plate 63, and the armature piece 72 is fixedly installed on the bottom wall of the flip plate 63.

[0050] In this embodiment, the alarm device includes a buzzer 95, a warning light 96, a power supply and a contact switch. Fig.10 As shown, the alarm buzzer 95 and the warning light 96 are arranged in parallel, and the electromagnetic switch and the contact switch are arranged in parallel and installed on the main line of the circuit diagram, wherein the alarm device can send out an alarm signal when any one of the electromagnetic switch and the contact switch is closed.

[0051] In this embodiment, if Figure 6 and Figure 7 As shown, the contact switch includes a first contact 91 fixed on the connecting plate 82 and a second contact 92 fixed on the side wall of the chamber 51. In the initial state, as shown in FIG. Figure 6 As shown, the first contact 91 is disconnected from the second contact 92. When the load-bearing column 81 pops out, the first contact 91 is in contact with the second contact 92 to achieve power transmission.

[0052] Through the above arrangement, when the central control unit transmits power to the electromagnet 71, the electromagnet 71 attracts the armature piece 72 to move, and drives the flip plate 63 to flip around the flip axis 62, so that the clamping wedge 64 is out of contact with the clamping groove 811. At this time, the load-bearing column 81 is ejected and inserted into the plug hole 102 under the elastic force of the second spring 83 to bear part of the gravity of the base 1, thereby enhancing the stability between the base 1 and the column 10. At this time, the first contact 91 is in contact with the second contact 92 to achieve the closure of the contact switch. At this time, the power of the power supply can simultaneously transmit power to the buzzer 95 and the warning light 96 through the contact switch and the electromagnetic switch. Since the electromagnetic switch is plugged into the plug hole 102 after the load-bearing column 81, the central control unit stops transmitting power to the electromagnetic switch. At this time, the electromagnetic switch is turned on, and the power of the power supply is transmitted to the alarm device through the contact switch, so that the alarm signal is sent, so that the warehouse staff can find the shelf status in time and sort the goods.

[0053] In order to prevent the alarm device on the shelf from continuously sounding an alarm, in the present embodiment, a switch for controlling the emergency stop of the alarm device is installed on the display 4. After the goods on the shelf are cleared, the load-bearing column 81 can be manually pushed to move into the chamber 51. Due to the setting of the clamping wedge block 64 and the clamping groove 811, the load-bearing column 81 can be limited in time. When the outer load-bearing column 81 is completely moved into the guide channel 52, the second spring 83 is compressed to the extreme position.

[0054] When the electromagnetic switch is damaged, when the staff finds that the weight value on the load-bearing plate 2 is greater than the set threshold, in order to be able to promptly notify the warehouse staff, therefore, in this embodiment, if Figure 6 As shown, a draggable handle 93 is provided at the bottom of the casing 5, and a pull rope 94 is connected between the drag handle 93 and the flip plate 63. At this time, the drag handle 93 can be manually pulled to drive the flip plate 63 to rotate around the flip axis 62, and the load-bearing column 81 is released from the restriction of the clamping wedge block 64, so that the contact switch can be closed, and the alarm device can send out an alarm signal, thereby achieving the effect of timely reminding the warehouse keeper.

[0055] It will be apparent 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 considered exemplary and non-restrictive in all respects, 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.

Claims

1. A weighing system for storage, comprising a base (1) hung on a column (10), a load-bearing plate (2) placed on the base (1), characterized in that: At least one pressure sensor (3) is provided between the load-bearing plate (2) and the base (1); the weighing system comprises a central control unit, a display (4), an alarm device and a protective device; the pressure sensor (3), the display (4), the alarm device and the protective device are all electrically connected to the central control unit; The alarm device comprises a buzzer (95), a warning light (96) arranged in parallel with the buzzer (95), and a contact switch for supplying power to the buzzer (95) and the warning light (96); The protective device is fixedly mounted on the base (1), and comprises a plug hole (102) provided on the column (10), two horizontally arranged and mutually parallel load-bearing columns (81), and a limiting mechanism for limiting the position of the load-bearing columns (81), and the two load-bearing columns (81) are fixedly connected via a connecting plate (82); The limiting mechanism comprises a clamping groove (811) provided at the bottom of the load-bearing column (81), a clamping wedge block (64), and an electromagnetic switch for driving the clamping wedge block (64) to switch inside / outside the clamping groove (811); The electromagnetic switch is connected in parallel with the contact switch; the contact switch is arranged on the connecting plate (82); A threshold is provided in the central control unit. When the weight on the load-bearing plate (2) is greater than the threshold, the limiting mechanism releases the limit on the load-bearing column (81), allowing the load-bearing column (81) to be plugged into the plug hole (102), and the central control unit drives the alarm device to send out an alarm signal.

2. A warehousing weighing system according to claim 1, characterized in that: The protective device also includes a casing (5) fixed on the base (1), a chamber (51) is provided in the casing (5), a guide channel (52) is provided on the side of the casing (5) facing the plug hole (102), the load-bearing column (81) is slidably installed in the guide channel (52), an elastic component is installed between the load-bearing column (81) and the side wall of the chamber (51), in an initial state, the elastic component is compressed, the clamping wedge (64) is inserted into the clamping groove (811), and the limiting mechanism limits the movement of the load-bearing column (81).

3. A warehousing weighing system according to claim 2, characterized in that: The electromagnetic switch comprises an armature piece (72) fixed on a clamping wedge (64), an electromagnet (71) fixed on the inner wall of the chamber (51), and a first spring (73) located between the clamping wedge (64) and the electromagnet (71); the electromagnet (71) is electrically connected to the central control unit; in an initial state, the clamping wedge (64) is inserted into the clamping groove (811).

4. A warehousing weighing system according to claim 2 or 3, characterized in that: A drag handle (93) is provided on the outer side of the housing (5), and a pull rope (94) is connected between the drag handle (93) and the clamping wedge block (64).

5. A warehousing weighing system according to claim 3, characterized in that: A support frame (61) extending upward is fixedly provided on the bottom wall of the chamber (51), a flip shaft (62) is fixedly provided on the support frame (61), a flip plate (63) is rotatably connected to the flip shaft (62), and the clamping wedge block (64) is fixed on the flip plate (63).

6. A warehousing weighing system according to claim 1, characterized in that: The contact switch comprises a first contact (91) and a second contact (92); the first contact (91) is mounted on the load-bearing column (81), and the second contact (92) is fixedly mounted on the inner wall of the chamber (51); when the load-bearing column (81) is plugged into the plug hole (102), the first contact (91) and the second contact (92) are in contact to form a power supply path.

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