Knife net electronic target

Abstract

The utility model discloses a knife net electronic target, which relates to the technical field of dart targets and mainly comprises a target body frame, a target body embedded in the target body frame, a metal knife net and a bull eye which are embedded in the target body, and a number ring fixed outside an invalid partition of the target body, the partition induction lines are fixed below the metal knife net but are not in contact with the metal knife net at all, leads of the partition induction lines are arranged below an annular diameter or a longitudinal diameter of the metal knife net, perspective observation is performed from a vertical target surface view angle, and the metal knife net completely and correspondingly covers the partition induction lines. On the premise that the magnetic induction effect of the partition induction lines is not affected, the induction lines are effectively protected, and damage to the induction lines caused by dart throwing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dart targets, in particular to a knife net electronic target. Background Art

[0002] Darts is a sport that combines entertainment, fitness, and competition, and is widely popular in Europe and the United States. As this activity becomes more popular, the number of darts enthusiasts in China is also increasing. Darts has now been included in the national sports program, and many international darts invitational tournaments have been held.

[0003] The electronic targets on the market are plastic, limited to plastic dart pins, and are called soft dart targets. International dart competitions use hard darts, and the targets are made of sisal fiber, designed for steel darts. These targets are referred to as hemp targets. There are three types of products: standard circular wire targets, mid-range triangular mesh targets, and high-end knife mesh targets. Over the past decade, several countries and regions have been developing steel pin electronic targets. For example, some countries use the operating principle of plastic electronic targets, employing membrane push-type switches for zone signal recognition. The impact of the dart throw causes the contacts of the zone fiber blocks to press the membrane switches to report the score. However, in humid seasons, the fiber blocks absorb air humidity, causing them to expand. Alternatively, the darts hitting the zones can cause the fiber blocks to expand again, hindering the movement of the zones and preventing normal score reporting. Domestic research and development of electronic targets primarily utilizes eddy current sensing for identification and zoning. These targets utilize a triangular mesh. The triangular mesh on the target surface is secured to the target body by 20 U-shaped nails. These metallic nails hinder signal recognition, and when darts land on the parallel positions of the U-shaped nails, the score may not be displayed. Meanwhile, some countries and regions are using camera recognition in their electronic target development because the target surface partitioning net is too thin to achieve signal recognition for the blade net partition. These targets are constructed with a circular EVA ring around the periphery of a standard dartboard. Three cameras extend from this ring, facing the target body. The cameras identify the area where the darts were thrown and transmit the score signal to the electronic system. In dart competitions, three darts are thrown per round, and darts thrown onto the target surface are prone to being at parallel angles. The overlapping darts create blind spots for the camera, making them difficult to identify. This can lead to underreporting of dart positions and false scores.

[0004] The utility model patent CN213932233U authorized on August 10, 2021 discloses an electronic target based on an induction coil. An induction coil is wound around the isolation net / target block of each partition, and electromagnetic induction scoring based on the energized coil is achieved through cooperation with the circuit. This patent fixes the induction coil in the groove at the bottom of the partition isolation net and the bull's eye ring by injection molding or glues it to the bottom of the partition isolation net by glue to prevent it from being displaced due to the fluidity of the target fiber, thereby ensuring the stability of the scoring results. However, the problem with this solution is that the induction coil is placed in the metal knife net. Although the solution can avoid the displacement of the induction coil due to the fluidity of the target fiber, the problem of missing scores still exists in actual applications. Utility Model Content

[0005] Aiming at the technical defects of the existing electronic targets, the utility model provides a knife net electronic target.

[0006] A knife net electronic target mainly comprises a target frame, a target body embedded in the target frame, a metal knife net and a bull's eye embedded in the target body, and a number ring fixed outside an invalid partition of the target body.

[0007] The target body is provided with 82 partitioned induction lines, corresponding to the 82 scoring zones of the target body respectively. The partitioned induction lines in the target body are fixed below the metal knife net but do not contact the metal knife net (to avoid being affected by the shielding of the metal knife net). Specifically, the circular line of the partitioned induction line corresponds to the circular warp of the metal knife net, the longitudinal line of the partitioned induction line corresponds to the longitudinal diameter of the metal knife net, and the 50 partitioned induction lines correspond to the bull's eye. The lead of the partitioned induction line is set below the longitudinal circular warp or longitudinal warp of the metal knife net, and is connected to the circuit board through the threading hole on the bottom plate of the target body frame. From the perspective of vertical target surface, the metal knife net or bull's eye completely covers the partitioned induction line.

[0008] Furthermore, the partitioned induction wires are embedded in the target by cutting grooves in the target body, and the depth of the grooves is greater than the sum of the depth of the metal blade mesh embedded in the target body and the depth required to accommodate the partitioned induction wires.

[0009] Furthermore, grooves are provided on both sides of the annular diameter and the longitudinal diameter of the electronic target metal blade net, and adhesive is filled into the grooves before the metal blade net is pressed into the target body.

[0010] Furthermore, a protective net is provided within the target body to partition the induction lines. The protective net is constructed identically to the metal blade net, specifically, its annular diameter and longitudinal diameter correspond to those of the metal blade net. The protective net is positioned between the metal blade net and the bottom plate of the target body frame. When viewed from a perspective perpendicular to the target surface, the metal blade net completely covers the protective net.

[0011] The protective net is internally provided with a wire trough for accommodating the partitioned induction wires. The leads of the partitioned induction wires pass through the wire holes in the bottom plate and connect to the circuit board behind the target frame. Of course, when viewed from a perspective perpendicular to the target surface, the metal blade net also completely covers the lead holes.

[0012] Furthermore, the target frame is composed of a base plate and a fence fastened around the target, and the base plate is provided with 50-partition lead holes, 25-partition lead holes, 3-fold partition lead holes, 2-fold partition lead holes, and local partition lead holes.

[0013] Furthermore, the bottom plate is provided with a plurality of concentrically distributed annular reinforcing ribs and a plurality of equally spaced radial reinforcing ribs on the side facing away from the target body; and a vibration sensor is provided on the side facing away from the target body.

[0014] Furthermore, the number ring is fixed to the target body by a plurality of flattening glues, the outer edge of the flattening glue is provided with a number ring slot, the flattening glue is provided with a threaded hole for inserting a fastening screw, and the flattening glue is fixed to the target body by the screws.

[0015] Furthermore, a signal light through hole is provided at the center of one of the flattened rubbers, in which a network connection indicator signal light is installed; and a circular hole magnet for magnetizing the dart is built into the center of one of the flattened rubbers.

[0016] Beneficial effects of the utility model:

[0017] 1. The root cause of the problem of missed scores in the existing knife net electronic target was identified. The partition induction line was fixed under the metal knife net, thus avoiding the problem of metal fixing claws shielding the magnetic induction signal, so that the scoring problem no longer existed.

[0018] 2. The partitioned induction wire is protected by the target body and the knife net or protective net, so it can be stably and permanently fixed inside the target body, thereby increasing the service life of the electronic target;

[0019] 3. The metal mesh is provided with grooves, which, on the one hand, make the mesh and the target more tightly bonded during the bonding process, thus improving the connection strength between the two. On the other hand, it can block and protect the darts that are shot into the edge of the mesh, effectively preventing the darts from being inserted obliquely into the target and damaging the partition sensing line below.

[0020] 4. The arc-shaped reinforcement ribs and radial reinforcement ribs on the bottom plate can effectively prevent the bottom plate from deforming under the impact force of darts, thereby improving the structural stability of the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0022] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0023] Figure 2 It is a structure schematic diagram of the present application after splitting.

[0024] Figure 3 It is a structure schematic diagram of the present application after splitting from the second perspective.

[0025] Figure 4 It is a structure schematic diagram of the present application of the knife net and the protective net.

[0026] Figure 5 It is a connection schematic diagram of the present application of the knife net and the protective net.

[0027] Figure 6 It is a structure schematic diagram of the present application of the protective net.

[0028] Figure 7 It is a structure schematic diagram of the present application Figure 4 of the enlarged structure at A.

[0029] Figure 8 It is a structure schematic diagram of the present application Figure 4 of the enlarged structure at B.

[0030] Figure 9 It is a structure schematic diagram of the present application of the four flattened adhesives.

[0031] Figure 10 It is a structure schematic diagram of the present application of the bull's eye.

[0032] Figure 11 It is a structure schematic diagram of the present application of the bull's eye after the ring is cut open.

[0033] In the figure: 1, target disc; 2, knife net; 21, groove; 3, protective net; 31, wire slot; 4, lead hole; 5, target body frame; 501, bottom plate; 502, steel ring; 503, back cover plate; 51, arc-shaped reinforcing rib; 52, radial reinforcing rib; 6, flattened adhesive; 61, screw hole; 62, digital ring clamping groove; 7, bull's eye; 71, bull's eye ring; 72, sharp claw; 8, round hole magnet; 9, signal lamp. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] After research and analysis, the reason why the utility model patent CN213932233U still has the problem of missed scoring in actual application is that the partition isolation net and the bull's eye are made of metal material, the induction line is arranged inside or fixed on the bottom through glue, and there is a problem of magnetic induction signal shielding. Based on this finding, the utility model fixes the partition induction line under the metal knife net, and the effective partition knife net without metal claws does not hinder the horizontal magnetic field. When the dart needle is thrown into the target body, the horizontal magnetic wave identifies the position of the dart needle and automatically transmits the signal position and score.

[0036] Embodiment 1

[0037] A knife net electronic target, as shown in Figure 1-3 , mainly comprises a target body frame 5, a target body 1 embedded in the target body frame 5, a metal knife net 2 and a bull's eye 7 embedded in the fiber layer 1, and a digital ring fixed outside the invalid partition of the target body 1, and the target body 1 is provided with a partition induction line. How to set the partition induction line to achieve the scoring effect belongs to the prior art, which will not be described here. The target body in the embodiment is preferably a fiber target body, especially high-quality jiongma.

[0038] In the embodiment, the partition induction line is embedded by slotting on the target body 1, and the slotting depth is greater than the sum of the embedding depth of the metal knife net 2 into the target body and the depth required for accommodating the partition induction line. From the perspective of vertical target surface perspective observation, the metal knife net 2 completely covers the partition induction line, which ensures normal partition induction and protects the partition induction line.

[0039] The related electronic target manufacturing process is that a groove with a certain depth is first opened on the target body 1, then the partition induction line is arranged in it, and it is ensured that the metal knife net does not contact the partition induction line after being placed, that is, there is a gap between the bottom surface of the metal knife net and the partition induction line. Because the fiber target body has a certain flowability, the gap will be filled with fibers, so that a fixed structure is formed among the partition induction line, the target body and the metal knife net.

[0040] To prevent the dart needle from being inserted into the target body 1 at an angle and damaging the partition induction line, recesses 21 are arranged on both sides of the annular diameter and the longitudinal diameter of the metal knife net 2, as shown in Figure 6Before the metal knife net 2 is pressed into the target body 1, the recess 21 is filled with adhesive. In this way, not only the stability of the fixed knife net can be improved, but the recess 21 can also prevent the dart needle from sliding further into the target body 1 and damaging the partition inductive line.

[0041] Embodiment 2

[0042] Different from Embodiment 1, in this embodiment, a protective net 3 made of non-metallic material is arranged inside the target body 1. The protective net 3 has the same structure as the metal knife net 2 and is located between the metal knife net 2 and the bottom plate 501 of the target body frame 5. From the perspective of vertical target surface, the metal knife net 2 completely covers the protective net 3.

[0043] The protective net 3 is internally provided with a wire slot 31 for accommodating the partition inductive line. As shown in Figure 6 The lead wire of the partition inductive line is led out through the wire hole 4 on the bottom plate 501 and connected to the circuit board behind the target body frame 5, and then sealed by the back cover plate 503. From the perspective of vertical target surface, the metal knife net 2 also completely covers the wire hole 4.

[0044] The wire slot 31 can be opened towards the side of the bottom plate 501 and then directly downwardly pass through the wire hole 4; or the wire slot 31 can be opened towards the side of the metal knife net 2 and then opened towards the side of the bottom plate 501 at the lead wire hole opposite to the wire hole 4 for the lead wire of the partition inductive line to pass through. The latter has the advantage that it is more convenient to control the partition inductive line during the process of placing the protective net into the target body, so as to prevent the partition inductive line from being displaced during the extrusion process of embedding into the target body.

[0045] In actual use, the protective net can be made of plastic material or other high polymer material, which can protect the partition inductive line while not shielding the magnetic induction signal, thereby ensuring the accuracy of each dart score. However, such material does not have the high hardness of metal material and cannot withstand the impact of the dart for a long time, nor can it well protect the partition inductive line. Therefore, in this embodiment, the protective net is arranged between the metal knife net and the bottom plate of the target body frame, so that the metal knife net completely covers the protective net, which does not affect the dart entering the target body, protects the partition inductive line, and avoids the shielding of the metal knife net to the magnetic induction signal.

[0046] When the player throws, the dart penetrates into the target body to a certain depth to stay on the target body without falling off. The depth is certainly greater than the depth of the metal knife net penetrating into the target body, so the dart needle penetrating into the target body can be inducted by the partition inductive line inside the protective net and accurately scored.

[0047] In this embodiment, a vibration sensor is provided on the side of the base plate 501 facing away from the target to identify the number of darts thrown by the player. When a dart is thrown onto the target, the target vibrates, and the vibration sensor transmits a signal to the electronic system. If a dart is thrown into an invalid zone or misses, the vibration sensor also transmits a signal to the app or electronic system, and the dart is recorded as a 0 point.

[0048] Example 3

[0049] Due to the obstruction of the protective net, the metal knife net cannot extend the fixed claws to the target body within the effective partition. Based on Example 2, this embodiment provides the following two reinforcement solutions for the metal knife net.

[0050] First, the radial diameter extends twice the outer diameter of the partition, and fixed claws extend toward the target in the inactive partition. As the radial diameter of early dartboards all extended twice the outer diameter of the partition, and fixed claws extended toward the target in the inactive partition, please refer to the description of the existing blade net in utility model patent CN204461221U, which will not be repeated here.

[0051] Second, metal knife net reference Figure 5 、 Figure 6 As shown, the blade net is composed of 4 circular diameters and 20 radial diameters interlaced. The 4 circular diameters, from inside to outside, are 3 times the inner diameter of the partition, 3 times the outer diameter of the partition, 2 times the inner diameter of the partition, and 2 times the outer diameter of the partition. One end of each radial diameter is fixedly connected to the outer diameter of the partition, and the other end extends to the 25th partition. In short, the radial diameter does not extend beyond the outer diameter of the partition, and there are no fixed claws inside the blade net that extend toward the target.

[0052] On this basis, in order to improve the stability of the knife net fixation, grooves 21 are provided on both sides of the annular diameter and the longitudinal diameter near the protective net 3, referring to Figure 6 As shown, before the metal knife net 2 is pressed into the target body 1, adhesive is filled into the groove 21, so as to achieve seamless bonding and fixation between the knife net and the target body.

[0053] This solution not only avoids the influence of the existence of the fixed claws in the effective partition on the magnetic induction signal, but also ensures the stability of the knife net, so it is the preferred solution of the present utility model.

[0054] Example 4

[0055] The target is primarily formed from hemp fibers, squeezed into a circular shape, and then placed within a target frame. The target frame constrains the target, maintaining its circular shape. The target frame consists of a base plate 501 and a barrier 502 fastened around the target. The base plate 501 is provided with lead holes for 50-zone, 25-zone, 3x zone, 2x zone, and local zone.

[0056] Of course, the target body has a great reaction force on the target body frame. In order to ensure the stability of the target body frame, the bottom plate 501 is integrally injection molded, and as a preferred solution, a plurality of annular reinforcing ribs 51 and a plurality of equidistant radial reinforcing ribs 52 are arranged on the side of the bottom plate 501 away from the target body, as shown in Figure 2 , forming a reinforcing rib array similar to a knife net structure, thereby avoiding the target body from bulging to the side of the bottom plate under the impact of a long-term dart. The enclosure 502 can be a steel ring or integrally injection molded with the bottom plate 501.

[0057] The combination of the annular reinforcing ribs 51 and the radial reinforcing ribs 52 can improve the structural strength of the target body frame 5, effectively reduce the deformation probability of the target body under the impact of a dart, and also protect the circuit board arranged on the back thereof.

[0058] Embodiment 5

[0059] In this embodiment, the digital ring is fixed to the target body by a plurality of flattened adhesives 6 based on Embodiment 1 or 2, as shown in Figure 7 , a threaded hole 61 for inserting a fastening screw is formed in the flattened adhesive 6, and the flattened adhesive 6 is fixed to the target body 1 by the screw. The outer edge of the flattened adhesive is provided with a digital ring clamping groove 62, and the digital ring is clamped in the clamping groove of the flattened adhesive and limited between the flattened adhesive and the target body, thereby achieving fixation.

[0060] A signal lamp through hole is arranged at the center of one of the plurality of flattened adhesives, and a signal lamp 9 for indicating a dart hitting condition is installed in the signal lamp through hole; and a circular hole magnet 8 for magnetizing a dart is arranged at the center of another flattened adhesive.

[0061] Embodiment 6

[0062] The bullseye is divided into 50 sections, and dart players often choose to project the area to obtain entry score qualification. In this embodiment, the bullseye 7 includes a bullseye ring 71 and a sharp claw 72 extending from the lower end of the bullseye ring 71 based on Embodiment 1 or 2, as shown in Figure 8 , Figure 9 , the outer wall of the bullseye ring 71 is perpendicular to the target surface, and the inner wall has an inward slope, forming an inner ramp structure; the end of the bullseye ring 71 connected to the sharp claw 72 is set as a lower opening, and the other end is set as an upper opening, and the inner diameter of the upper opening is greater than that of the lower opening.

[0063] Firstly, the outer wall of the bull's eye ring is perpendicular to the target surface, and only the inner wall forms an inward slope, which reduces the area of ​​the bull's eye occupied by the target surface, thereby reducing the probability of the dart needle hitting the bull's eye and missing the dart; secondly, the inner wall of the bull's eye ring has an inward slope, so that the inner diameter of the upper end of the bull's eye ring is larger than that of the lower end, which can to a certain extent avoid the probability of collision between the dart and the bull's eye ring, making the dart needle more likely to hit the 50-point zone; finally, when the dart is thrown at a certain angle to the upper end of the bull's eye ring, the impact force of the dart will cause the dart needle to slide into the 50-point zone along the inner slope, thereby improving the score.

[0064] During this process, the inner ramp is located inside the bull's eye ring, and the thickness of the upper opening is smaller than that of the lower opening. This effectively prevents collisions between the dart and the bull's eye ring, increasing the probability of the dart entering the target's partition. Improving the tightness of the connection between the dart and the target effectively prevents the dart from slipping off the target, ensuring the effectiveness of dart shooting and the normal use of the dart, helping players achieve high scores.

[0065] Regarding the setting of the 50-zone induction line, the lower mouth of the bull's eye ring is a parallel step surface, and adhesive is placed in the ring wall to press it on the 50-zone induction line or 2-3 fixed claws are set on the outer edge of the ring step surface. The fixed claws penetrate into the target body, and the step surface of the inner ring of the bull's eye is pressed on the 50-zone induction line, thereby protecting the 50-zone coil from damage by the dart needle.

[0066] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A knife net electronic target, mainly comprising a target frame (5), a target body (1) embedded in the target frame (5), a metal knife net (2) and a bull's eye (7) embedded in the target body (1), and a digital ring fixed outside an invalid partition of the target body (1), wherein a partition induction line is provided in the target body (1), characterized in that: The partition induction line is fixed below the metal knife net (2) but is completely out of contact with the metal knife net (2). The circular line of the partition induction line corresponds to the circular diameter of the metal knife net, the longitudinal line of the partition induction line corresponds to the longitudinal diameter of the metal knife net, and the 50 partition circular line corresponds to the bull's eye. The lead of the partition induction line is set below the longitudinal circular diameter or longitudinal diameter of the metal knife net and is connected to the circuit board through the threading hole (4) on the bottom plate (501) of the target body frame (5). When observed from a perspective perpendicular to the target surface, the metal knife net or the bull's eye (7) completely covers and protects the partition induction line.

2. The knife net electronic target according to claim 1, characterized in that: The partition induction wire is embedded in the target body (1) by means of a groove, and the depth of the partition wire groove is greater than the sum of the depth of the knife net (2) embedded in the target body and the depth required to accommodate the partition induction wire.

3. The knife net electronic target according to claim 2, characterized in that: Grooves (21) are provided on both sides of the annular diameter and the longitudinal diameter of the metal knife net (2). Before the metal knife net (2) is pressed into the target body (1), adhesive is filled into the grooves (21).

4. The knife net electronic target according to claim 1, characterized in that: A protective net (3) for partitioning the induction lines is provided inside the target body (1); the protective net (3) has the same structure as the metal knife net (2) and is located between the metal knife net (2) and the bottom plate (501) of the target body frame (5); when observed from a perspective perpendicular to the target surface, the metal knife net (2) completely covers the protective net (3); A wire groove (31) for accommodating the partition induction wire is provided inside the protection net (3). The lead wires of the partition induction wire pass through the wire holes (4) on the bottom plate (501) and are connected to the circuit board behind the target frame (5).

5. The knife net electronic target according to claim 1, characterized in that: The target frame (5) is composed of a base plate (501) and a fence (502) fastened around the target, and the base plate (501) is provided with 50-partition lead holes, 25-partition lead holes, 3-fold partition lead holes, 2-fold partition lead holes, and local partition lead holes.

6. The knife net electronic target according to claim 5, characterized in that: The bottom plate (501) is provided with a plurality of concentrically distributed annular reinforcing ribs (51) and a plurality of equally spaced radial reinforcing ribs (52) on a side facing away from the target body.

7. The knife net electronic target according to claim 5, characterized in that: A vibration sensor is provided on the side of the bottom plate (501) facing away from the target.

8. The knife net electronic target according to claim 1, characterized in that: The number ring is fixed to the target body via a plurality of flattening rubbers (6); a number ring slot is provided on the outer edge of the flattening rubber; a threaded hole (61) for inserting a fastening screw is provided on the flattening rubber (6); and the flattening rubber (6) is fixed to the target body (1) via the screws.

9. The knife net electronic target according to claim 8, characterized in that: A signal light through hole is provided at the center of one of the flattened rubbers, in which a connecting signal light (9) is installed.

10. The knife net electronic target according to claim 8, characterized in that: A circular hole magnet (8) for magnetizing the dart is built into the center of one of the flattened rubbers.

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