Wireless transmission type U-shaped scale

Abstract

The utility model discloses a wireless transmission type U-shaped scale, which comprises two scale bodies, a plurality of weighing sensors, a connecting part, a cover plate and a wireless transmission assembly, the two scale bodies are oppositely arranged, the plurality of weighing sensors are correspondingly arranged on the two scale bodies, the connecting part is connected with the two scale bodies, an accommodating cavity is formed in the connecting part, and the cover plate is arranged in the accommodating cavity. The shell wall of the connecting part is provided with a mounting hole communicated with the accommodating cavity, the cover plate is matched with the mounting hole and is made of a non-metal material, the wireless transmission assembly comprises a first wireless transmission device arranged in the accommodating cavity, the first wireless transmission device is electrically connected with a plurality of weighing sensors, and the first wireless transmission device is electrically connected with the weighing sensors. An emission source of the first wireless transmission device at least partially faces the cover plate. According to the utility model, the number of cables arranged inside and outside the U-shaped scale is reduced, and the stability and maintenance convenience of the U-shaped scale are improved. In addition, the cover plate made of the non-metal material can reduce the blocking effect of the connecting part on the electromagnetic wave signal emitted by the emission source.

Description

TECHNICAL FIELD

[0001] The utility model belongs to U type scale technical field, concretely relates to a wireless transmission formula U type scale. BACKGROUND

[0002] U type scale is a kind of special weighing equipment, commonly used for the goods of AGV handling dolly, fork truck or dumper etc. Mobile equipment handling, with the increasing demand of weighing, the requirement of U type scale is higher and higher, and traditional U type scale cannot satisfy the current weighing demand.

[0003] Current U type scale mostly uses signal cable to transmit weighing data, so that U type scale is internally provided with numerous cables, and part of cable is led out from U type scale, in the occasion of serious rat infestation, cable is vulnerable to damage, and the messy cable is not conducive to the maintenance of U type scale.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model, and should not be regarded as an acknowledgement or any form of suggestion that this information constitutes prior art known to those of ordinary skill in the art. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a wireless transmission formula U type scale, which is used to solve the problem of messy cable inside the existing U type scale, which is not conducive to the maintenance of U type scale.

[0006] In order to realize the above-mentioned purpose, the utility model one specific implementation provides a wireless transmission formula U type scale, the wireless transmission formula U type scale includes two scale bodies, a plurality of weighing sensors, a connecting portion, a cover plate and a wireless transmission assembly, two scale bodies are oppositely arranged, a plurality of weighing sensors are correspondingly installed on two scale bodies, the connecting portion connects two scale bodies, the inside of the connecting portion is formed with accommodating cavity, the shell wall of the connecting portion is provided with installation hole in communication with accommodating cavity, the cover plate is matched with installation hole and is made of nonmetallic material, the wireless transmission assembly includes first wireless transmission equipment arranged in accommodating cavity, first wireless transmission equipment is electrically connected with a plurality of weighing sensors, and the emission source of first wireless transmission equipment at least partially faces the cover plate.

[0007] In one or more embodiments of the utility model, the side of the cover plate close to the emission source is provided with recess towards the emission source.

[0008] In one or more embodiments of the utility model, the emission source protrudes towards the recess.

[0009] In one or more embodiments of the utility model, on the plane perpendicular to the recess recessed direction, the vertical projection of the emission source is located in the vertical projection of the recess.

[0010] In one or more embodiments of the present application, the wireless transmission type U-shaped scale further comprises a spacer ring welded in the mounting hole, and the cover plate is in interference fit in the spacer ring.

[0011] In one or more embodiments of the present application, the spacer ring comprises a limiting portion protruding radially from an inner ring thereof, and the cover plate is in axial abutment with the limiting portion on the side close to the first wireless transmission device.

[0012] In one or more embodiments of the present application, the mounting hole is located on the top shell wall of the connecting portion.

[0013] In one or more embodiments of the present application, the wireless transmission type U-shaped scale further comprises a pulling member, the pulling member comprising a bearing portion at least partially arranged in the accommodating cavity and controllably removed from the accommodating cavity, and the wireless transmission assembly is mounted on the bearing portion.

[0014] In one or more embodiments of the present application, the wireless transmission assembly further comprises a power supply electrically connected with the first wireless transmission device.

[0015] In one or more embodiments of the present application, the wireless transmission assembly further comprises a digital junction box, and the first wireless transmission device is electrically connected with the plurality of weighing sensors through the digital junction box.

[0016] In one or more embodiments of the present application, the wireless transmission type U-shaped scale further comprises a second wireless transmission device in communication connection with the first wireless transmission device, and a data display device in electrical connection with the second wireless transmission device.

[0017] Compared with the prior art, the present application transmits the weighing data through the first wireless transmission device, reduces the number of cable layout inside and outside the U-shaped scale, and improves the stability and maintenance convenience of the U-shaped scale. Moreover, the cover plate made of non-metallic material is arranged at the emission source of the first wireless transmission device, which can reduce the blocking effect of the connecting portion made of metal on the electromagnetic wave signals emitted by the emission source. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 is a top view of the wireless transmission type U-shaped scale in an embodiment of the present application;

[0020] Figure 2It is internal structure diagram of connecting portion in one embodiment of the utility model;

[0021] Figure 3 It is the stereogram of puller in one embodiment of the utility model;

[0022] Figure 4 It is Figure 1 It is sectional structure diagram of A-A in the middle;

[0023] Figure 5 It is Figure 2 It is sectional structure diagram of B-B in the middle;

[0024] Figure 6 It is structure schematic diagram of second wireless transmission equipment and data display equipment in one embodiment of the utility model.

[0025] Main figure mark explanation: 1, scale body, 2, weighing sensor, 3, connecting portion, 301, hold cavity, 302, mounting hole, 4, cover plate, 401, recess, 5, spacer, 501, limit portion, 6, first wireless transmission equipment, 601, emission source, 7, power supply, 8, digital terminal box, 9, second wireless transmission equipment, 10, data display equipment, 11, puller, 1101, bearing portion, 1102, sealing portion, 1103, handle. Specific implementation

[0026] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor should belong to the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "top", "bottom", "upper", "lower" and the like is the orientation or position relation shown in the drawing, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0028] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more said features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] In an embodiment, referring to Figure 1 and Figure 2 , the embodiment provides a wireless transmission type U-shaped scale, which comprises two scale bodies 1, a plurality of weighing sensors 2, a connecting part 3, a cover plate 4 and a wireless transmission assembly.

[0030] The two scale bodies 1 are oppositely arranged and are generally configured as strip-shaped structures parallel to each other, and the plurality of weighing sensors 2 are evenly distributed on the two scale bodies 1. The connecting part 3 is located between the two scale bodies 1 and connects the two scale bodies 1, and together with the two scale bodies 1 forms a structure similar to a U-shaped structure. The shell part of the connecting part 3 is made of a metal material to ensure that it has a certain bearing capacity. The connecting part 3 has a receiving cavity 301 formed in the inside thereof, and a mounting hole 302 is formed in the shell wall of the connecting part 3 and is in communication with the receiving cavity 301. The cover plate 4 cooperates with the mounting hole 302 to cover the mounting hole 302. The cover plate 4 is made of a non-metal material, and specifically can be made of plastic. The thickness of the cover plate 4 can be specifically set to about 12 mm. The wireless transmission assembly comprises a first wireless transmission device 6 arranged in the receiving cavity 301. The first wireless transmission device 6 is electrically connected with the plurality of weighing sensors 2, and is used to send the weighing data of the plurality of weighing sensors 2 to a corresponding data display device 10 or a data processing device in a wireless transmission form. In order to ensure that the signal of the first wireless transmission device 6 can be stably transmitted to the outside of the connecting part 3, the emission source 601 of the first wireless transmission device 6 is arranged close to the cover plate 4 made of a non-metal material, so as to ensure that the emission source 601 is at least partially directed towards the cover plate 4, reduce the blocking effect of the connecting part 3 made of a metal material on the electromagnetic wave signal, and ensure that the emission source 601 can stably output the electromagnetic wave signal.

[0031] Considering that the height of the receiving cavity 301 is limited in actual application, the wireless transmission assembly is generally installed in the receiving cavity 301 along the horizontal plane, and the emission source 601 of the first wireless transmission device 6 mainly emits electromagnetic wave signals upward. In an embodiment, referring to Figure 4 and Figure 5 , in order to adapt to the size of the receiving cavity 301 and the installation mode of the wireless transmission assembly, the mounting hole 302 is formed in the top shell wall of the connecting part 3.

[0032] In an embodiment, referring to Figure 4 and Figure 5 , in order to further reduce the blocking effect of the cover plate 4 on the electromagnetic wave signal, one side of the cover plate 4 close to the emission source 601 is recessed with a recess 401 directed towards the emission source 601, so as to reduce the thickness of the part of the cover plate 4 directly opposite the emission source 601 and increase the penetration of the electromagnetic wave signal at the recess 401. The depth of the recess 401 can be set to about 4-6 mm, and specifically can be set to 4 mm, 5 mm or 6 mm.

[0033] Further, in order to ensure the penetration of the electromagnetic wave signal emitted by the emitting source 601 at the groove 401, the emitting source 601 should be arranged as much as possible to face the groove 401, and the planar size of the groove 401 should be greater than the planar size of the emitting source 601, that is, in the plane perpendicular to the direction of the groove 401, the vertical projection of the emitting source 601 is located in the vertical projection of the groove 401, and the vertical projection of the emitting source 601 is completely wrapped in the vertical projection of the groove 401.

[0034] In an embodiment, the cross-sectional shape of the cover plate 4, the groove 401 and the emitting source 601 are all set to be circular, the cross-sectional diameter of the cover plate 4 can be set to be about 70-90mm, and can be set to be 70mm, 80mm or 90mm, the cross-sectional diameter of the groove 401 can be set to be about 22-30mm, and can be set to be 22mm, 24mm, 26mm, 28mm or 30mm, and the cross-sectional diameter of the emitting source 601 can be set according to the above structure design.

[0035] In other alternative embodiments, the cross-sectional shape of the cover plate 4, the groove 401 and the emitting source 601 can all be set to be rectangular, the length and width of the cover plate 4 can be set to be about 70-90mm, the length and width of the groove 401 can be set to be about 22-30mm, and the length and width of the cross-section of the emitting source 601 can be set according to the above structure design.

[0036] In other alternative embodiments, the cross-sectional shape of the groove 401 and the emitting source 601 can be inconsistent, for example, the cross-sectional shape of the groove 401 is rectangular, and the cross-sectional shape of the emitting source 601 is circular.

[0037] Considering that the planar size (diameter or length and width) and depth of the groove 401 are too large, which will reduce the structural strength of the cover plate 4 and reduce the carrying capacity, and the planar size (diameter or length and width) and depth of the cross-section are too small, which will increase the blocking effect of the cover plate 4 on the electromagnetic wave signal, therefore, the planar size (diameter or length and width) and depth of the groove 401 should be controlled within a reasonable range. In an embodiment, the cross-section of the groove 401 is configured to be circular, and the ratio of the diameter to the depth of the cross-section can be set to be about 4-6, and can be set to be 4, 4.5, 5, 5.5 or 6.

[0038] In an embodiment, the transmitting source 601 of the first wireless transmission device 6 is configured as a structure protruding towards the recess 401, reducing the signal transmission distance. Moreover, considering the process error and external force extrusion in practical application, the connecting part 3 and the cover plate 4 can be extruded and deformed to a certain extent. In order to avoid damage to the transmitting source 601 after the extrusion and deformation of the connecting part 3 and the cover plate 4, the transmitting source 601 is arranged at a distance from the cover plate 4, which can be set to about 2-3 mm, and can be set to 2 mm, 2.5 mm or 3 mm.

[0039] In an embodiment, referring to Figure 4 and Figure 5 , the wireless transmission type U-shaped scale further comprises a spacer 5 made of metal material, which is fixed in the mounting hole 302 by welding, and the cover plate 4 is interference fitted in the spacer 5.

[0040] Further, the spacer 5 comprises a limiting part 501 protruding radially from the inner circle thereof, and the side of the cover plate 4 close to the first wireless transmission device 6 abuts against the limiting part 501 along the axial direction thereof. The limiting part 501 can be configured as a circular ring structure, or can also be configured as a plurality of radially protruding protruding block structures.

[0041] Further, the thickness of the spacer 5 can be set to about 13-15 mm, and can be set to 13 mm, 14 mm or 15 mm.

[0042] In an embodiment, referring to Figure 2 and Figure 3 , one side of the connecting part 3 is provided with an opening, and the wireless transmission type U-shaped scale further comprises a pull-out piece 11 installed in the accommodating cavity 301 from the opening and sealing the opening. The pull-out piece 11 comprises a bearing part 1101 and a sealing part 1102, both of which are configured as plate-like structures. The bearing part 1101 is substantially parallel to the horizontal plane, and the sealing part 1102 is substantially perpendicular to the bearing part 1101. The bearing part 1101 is at least partially located in the accommodating cavity 301, and the wireless transmission assembly is installed on the bearing part 1101. The sealing part 1102 is detachably fixed to the opening at the side edge of the connecting part 3, thereby sealing the accommodating cavity 301.

[0043] When the sealing part 1102 is disconnected from the connecting part 3, the user can pull out the bearing part 1101 and the wireless transmission assembly from the accommodating cavity 301 through the handle 1103 outside the sealing part 1102, so as to facilitate the maintenance and replacement of the wireless transmission assembly, and also facilitate the removal of the cover plate 4 from the inside of the accommodating cavity 301.

[0044] In an embodiment, referring to Figure 2As shown, the wireless transmission assembly further comprises a power supply 7 and a digital junction box 8, the first wireless transmission device 6, the power supply 7 and the digital junction box 8 are fixedly installed on the same face of the bearing part 1101 by bolts, and the power supply 7 and the first wireless transmission device 6 are electrically connected with the digital junction box 8 by cables, so as to realize the electrical connection between the power supply 7 and the first wireless transmission device 6, and enable the power supply 7 to supply power to the first wireless transmission device 6.

[0045] Further, the digital junction box 8 is also electrically connected with the plurality of weighing sensors 2 by cables, so as to realize the electrical connection between the first wireless transmission device 6 and the plurality of weighing sensors 2. In specific application, all the weighing sensors 2 on a single scale body 1 can be connected in series, and then the digital junction box 8 is electrically connected with the weighing sensors 2 close to it by cables.

[0046] In other alternative embodiments, the wireless transmission assembly can also be directly electrically connected with the plurality of weighing sensors 2 and the power supply 7 by cables.

[0047] In an embodiment, referring to Figure 6 As shown, the wireless transmission type U-shaped scale further comprises a second wireless transmission device 9 and a data display device 10, the second wireless transmission device 9 is in communication connection with the first wireless transmission device 6, and is used for receiving the electromagnetic wave signal transmitted by the first wireless transmission device 6. The second wireless transmission device 9 is electrically connected with the data display device 10 by cables, and is used for transmitting the electromagnetic wave signal to the data display device 10, so that the data display device 10 displays the corresponding weighing data to the user.

[0048] In an embodiment, the first wireless transmission device 6 and the second wireless transmission device 9 can adopt Bluetooth devices or Wi-Fi devices, and the data display device 10 can be selected from instruments or display screens.

[0049] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0050] Furthermore, it should be understood that although the specification is described in terms of examples, the specification is not to be limited to only these described examples. The specification is intended to include each independent example described by the specification, as well as any combination of the examples in whole or part.

Claims

1. A wireless transmission U-shaped scale, characterized in that, The wireless transmission type U-shaped scale comprises: Two scale bodies (1) arranged oppositely, A plurality of weighing sensors (2) corresponding to the two scale bodies (1); A connecting part (3) connecting the two scale bodies (1), wherein an accommodating cavity (301) is formed in the connecting part (3), and a mounting hole (302) in communication with the accommodating cavity (301) is formed in the shell wall of the connecting part (3); A cover plate (4) matched with the mounting hole (302) and made of a non-metallic material; A wireless transmission assembly comprising a first wireless transmission device (6) arranged in the accommodating cavity (301), wherein the first wireless transmission device (6) is electrically connected with the plurality of weighing sensors (2), and a transmission source (601) of the first wireless transmission device (6) at least partially faces the cover plate (4).

2. The wireless transmission U-shaped scale according to claim 1, characterized in that, A groove (401) facing the transmission source (601) is formed in the side of the cover plate (4) close to the transmission source (601).

3. The wireless transmission U-shaped scale according to claim 2, wherein, The transmission source (601) protrudes towards the groove (401).

4. The wireless transmission U-shaped scale according to claim 2, wherein, In a plane perpendicular to the recess direction of the groove (401), the vertical projection of the transmission source (601) is located in the vertical projection of the groove (401).

5. The wireless transmission U-shaped scale according to claim 1, wherein, The wireless transmission type U-shaped scale further comprises a spacer (5) welded in the mounting hole (302), and the cover plate (4) is interference-fitted in the spacer (5).

6. The wireless transmission U-shaped scale according to claim 5, wherein, The spacer (5) comprises a limiting part (501) protruding radially from the inner circle thereof, and the side of the cover plate (4) close to the first wireless transmission device (6) abuts against the limiting part (501) along the axial direction.

7. The wireless transmission U-shaped scale according to claim 1, wherein, The mounting hole (302) is located on the top shell wall of the connecting part (3).

8. The wireless transmission U-shaped scale according to claim 1, wherein, The wireless transmission type U-shaped scale further comprises a pulling member (11), wherein the pulling member (11) comprises a bearing part (1101) arranged at least partially in the accommodating cavity (301) and controllably moved out of the accommodating cavity (301), and the wireless transmission assembly is mounted on the bearing part (1101).

9. The wireless transmission U-shaped scale according to claim 1, wherein, The wireless transmission assembly further comprises a power supply (7) electrically connected with the first wireless transmission device (6); and / or, The wireless transmission assembly further comprises a digital junction box (8), and the first wireless transmission device (6) is electrically connected with the plurality of weighing sensors (2) through the digital junction box (8).

10. The wireless transmission U-shaped scale according to claim 1, wherein, The wireless transmission type U-shaped scale further comprises a second wireless transmission device (9) in communication connection with the first wireless transmission device (6) and a data display device (10) electrically connected with the second wireless transmission device (9).

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