Agricultural insect killing device

Abstract

The utility model provides an agricultural insect killing device which comprises a supporting frame, an insect killing assembly arranged on the supporting frame and a lifting assembly arranged at the bottom of the supporting frame, and a plurality of inserting openings are formed in the supporting frame at intervals. The lifting assembly comprises a fixed connecting disc, a plurality of adjusting connecting rods, a sliding connecting disc, a plurality of pulling connecting rods and locking bolts. The fixed connecting disc is fixed to the bottom of the bearing frame, the multiple adjusting connecting rods are evenly arranged in the circumferential direction of the fixed connecting disc, one ends of the adjusting connecting rods are hinged to the fixed connecting disc, and the free tail ends of the adjusting connecting rods are provided with fastening screws used for being connected with the ground in an inserted mode. The sliding connecting disc is located above the fixed connecting disc and arranged on the bearing frame in a sliding and sleeving mode. The pulling connecting rods are evenly arranged in the circumferential direction of the sliding connecting disc, one ends of the pulling connecting rods are hinged to the sliding connecting disc, and the other ends of the pulling connecting rods are hinged to the adjusting connecting rods correspondingly. The locking bolt penetrates through the sliding connection disc and one of the insertion openings. The height of the insect killing assembly can be adjusted, and the insect killing assembly can be stably installed on the ground.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of agricultural prevention and cure of diseases and pests, and particularly relates to an agricultural insecticidal device. BACKGROUND

[0002] Due to the fact that various pests often affect the growth of crops in the agricultural production process, insecticides have been the main measure for preventing and controlling pests. Although insecticides have been developed for many years, the agricultural residues on crops have greatly reduced the harm to the human body, but as people's living quality continues to improve, more attention is paid to whether the purchased vegetables and fruits are green agriculture and pollution-free, so a large part of crops have stopped the pesticide prevention and cure of diseases and pests. The current popular method is to use the phototaxis of pests to capture and kill using a moth trap to achieve the purpose of physical control. However, the common insecticidal device on the market cannot well adjust the height of crops according to the growth of crops, which affects the function of the moth trap.

[0003] The utility model discloses a kind of insecticidal lamps with adjustable insecticidal range, by being equipped with support rod, lifting rod, rotating column, sleeve, rotating structure, shell, servo motor, driving gear and driven gear, since the insecticidal range of light moth-killing and the height of insecticidal lamp placement are relevant, the lifting function of lifting rod promotes support rod to rise, to realize the adjustment to the insecticidal range of insecticidal lamp. However, the insecticidal lamp is placed on the ground by base, leading to its installation is not stable enough, and it is easy to fall under the action of external force such as strong wind. SUMMARY

[0004] The utility model aims at solving the technical problem proposed above, provide a kind of agricultural insecticidal device, it can adjust the height of insecticidal component, and it can be stably installed on ground.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] The utility model provides an agricultural insecticidal device, which comprises a supporting frame, an insecticidal assembly arranged on the supporting frame and a lifting assembly arranged at the bottom of the supporting frame, the supporting frame is vertically and spacedly provided with a plurality of sockets, the lifting assembly comprises a fixed connecting disc, a plurality of adjusting connecting rods, a sliding connecting disc, a plurality of pulling connecting rods and at least one locking bolt, the fixed connecting disc is fixed to the bottom of the supporting frame, the plurality of adjusting connecting rods are uniformly arranged along the circumference of the fixed connecting disc and are hingedly connected to the fixed connecting disc at one end, the free end of the adjusting connecting rod is provided with a nail screw for being inserted into the ground, the sliding connecting disc is located above the fixed connecting disc and is slidingly sleeved on the supporting frame, the plurality of pulling connecting rods are uniformly arranged along the circumference of the sliding connecting disc and are hingedly connected to the sliding connecting disc at one end, the other end of the plurality of pulling connecting rods is respectively hingedly connected to the plurality of adjusting connecting rods, and the locking bolt is arranged through the sliding connecting disc and one of the sockets.

[0007] Further, the nail screw is connected to the free end of the adjusting connecting rod through a connecting plate, one side of the connecting plate is hingedly connected to the free end of the adjusting connecting rod, and the nail screw is vertically fixed to the other side of the connecting plate.

[0008] Further, the free end of the adjusting connecting rod is hingedly connected to the connecting plate through a first hinge, and the pulling connecting rod is hingedly connected to the adjusting connecting rod through a second hinge.

[0009] Further, the first hinge and the second hinge each comprise a hinge seat and a connecting bolt, the hinge seat of the first hinge is fixed to the connecting plate, the hinge seat of the second hinge is fixed to the adjusting connecting rod, the connecting bolt is arranged through the hinge seat, and the free end of the pulling connecting rod and the free end of the adjusting connecting rod are rotatably sleeved on the corresponding connecting bolt.

[0010] Further, the supporting frame comprises a vertical rod, a horizontal plate and a hook, the vertical rod is slidingly arranged through the sliding connecting disc and is fixedly connected to the fixed connecting disc at the bottom, and the horizontal plate is vertically fixed to the vertical rod, the hook is fixed to the horizontal plate, and the insecticidal assembly is hooked on the hook.

[0011] Further, the insecticidal assembly comprises a lamp top cover, a moth lamp and an electric net, the top surface of the lamp top cover is detachably connected to the supporting frame, the moth lamp is connected to the bottom surface of the lamp top cover, and the electric net is arranged around the outer periphery of the moth lamp and is fixedly connected to the lamp top cover at the top.

[0012] Further, the insecticidal assembly further comprises a moth cleaning device, the moth cleaning device comprises a bracket and a pulse electromagnetic valve, the bracket is fixed to the lamp top cover, the pulse electromagnetic valve is arranged on the bracket, and the gas outlet of the pulse electromagnetic valve is directed to the outer side wall of the electric net.

[0013] Further, an air source placing box is fixed on the support frame, and a gas storage tank is placed in the air source placing box, and the gas storage tank is connected with the pulse electromagnetic valve through a pneumatic hose.

[0014] Further, an insulating support frame is connected to the bottom of the electric net, and a funnel is connected to the insulating support frame, and a bug collecting box is detachably connected to the bottom of the funnel.

[0015] Further, a photovoltaic panel is arranged on the top of the support frame, and a storage battery placing box is arranged on the support frame, and a storage battery is arranged in the storage battery placing box, and the photovoltaic panel, the storage battery and the insect killing assembly are electrically connected through a wire.

[0016] By adopting the technical scheme, the utility model has the following beneficial effects:

[0017] 1. The agricultural insect killing device can drive the pulling connecting rod and the adjusting connecting rod to move through the sliding connecting disc, so that the support frame and the insect killing assembly on the support frame are lifted, and the height of the insect killing assembly can be adjusted according to the height of the crops, so that the insect killing effect of the insect killing assembly is improved. Meanwhile, the free end of the adjusting connecting rod is inserted into the ground through the nail screw, so that the device is more stable, and each adjusting connecting rod can rotate relative to the fixed connecting disc, so that the position of the nail screw can be adjusted according to the terrain, and the device is more suitable for installation in the uneven field.

[0018] 2. The agricultural insect killing device can provide the pulse electromagnetic valve with the gas for spraying through the gas storage tank, and the gas is sprayed to the electric net at a high speed at a fixed time, so that the pests remaining on the electric net are blown off, and the insect killing efficiency is improved. In addition, the funnel can collect the pests blown off from the electric net and guide the pests into the bug collecting box. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 1 is a structural view of the agricultural insect killing device according to the preferred embodiment of the utility model;

[0020] Figure 2 Fig. 2 is a structural view of the insect killing assembly in the agricultural insect killing device shown in Fig. 1; Figure 1

[0021] Figure 3 Fig. 3 is a structural view of the insect attracting lamp in the agricultural insect killing device according to the preferred embodiment of the utility model;

[0022] Figure 4 Fig. 4 is a structural view of the lifting assembly in the agricultural insect killing device according to the preferred embodiment of the utility model;

[0023] Figure 5 ​For Figure 4 Enlarged view of the structure at A;

[0024] In the drawings, 100, agricultural insecticidal device; 10, support frame; 11, socket; 12, vertical rod; 53, cross plate; 55, hook; 30, insecticidal assembly; 31, lamp top cover; 32, lifting ring; 33, insect trapping lamp; 35, power grid; 36, insulating support frame; 37, hopper; 38, insect collecting box; 39, insect removing part; 391, support; 393, pulse solenoid valve; 50, lifting assembly; 51, fixed connecting disc; 52, adjusting connecting rod; 521, connecting plate; 523, pin tightening screw; 53, sliding connecting disc; 54, pulling connecting rod; 55, locking bolt; 56, first hinged part; 57, second hinged part; 58, hinged seat; 59, connecting bolt; 60, air source placing box; 70, photovoltaic panel; 90, battery placing box. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components. When a component is referred to as being "disposed" on another component, it can be directly on the other component or there can be intervening components. The terms "vertical", "horizontal", "left", "right" and similar terms as used herein are for purposes of description only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0028] Please refer to Figure 1 The agricultural insecticidal device 100 provided by the preferred embodiment of the present application comprises a support frame 10, an insecticidal assembly 30 arranged on the support frame 10, and a lifting assembly 50 arranged at the bottom of the support frame 10.

[0029] The support frame 10 is vertically spaced apart with a plurality of sockets 11. In the embodiment, the support frame 10 comprises a vertical rod 12, a horizontal plate 13 and a hook 15. The vertical rod 12 is vertically arranged, and the plurality of sockets 11 are axially spaced apart on the vertical rod 12. The horizontal plate 13 is vertically fixed on the vertical rod 12. The hook 15 is fixed on the horizontal plate 13. In the embodiment, the number of the hook 15 is two, and the two hooks 15 are symmetrically arranged on opposite sides of the vertical rod 12 and are respectively fixed on opposite ends of the horizontal plate 13.

[0030] In the embodiment, the number of the insect killing assembly 30 is two, and the two insect killing assemblies 30 are respectively hooked on the two hooks 15. Please refer to Figure 2 and Figure 3 together, each insect killing assembly 30 comprises a lamp top cover 31, a moth lamp 33 and an electric net 35. The moth lamp 33 is connected to the bottom surface of the lamp top cover 31. The electric net 35 is peripherally arranged on the moth lamp 33. The top surface of the lamp top cover 31 is detachably connected with the support frame 10. Specifically, the top surface of the lamp top cover 31 is fixed with a lifting ring 32, and the lamp top cover 31 is hooked on the corresponding hook 15 through the lifting ring 32. The moth lamp 33 is connected to the bottom surface of the lamp top cover 31 by means of screw connection or the like. The moth lamp 33 can emit light of a specific wavelength to attract pests to the light and then kill the pests by the electric net 35. The electric net 35 is peripherally arranged on the moth lamp 33, and the top end of the electric net 35 is fixed on the lamp top cover 31. In the embodiment, the bottom of the electric net 35 is further connected with an insulating support frame 36, the insulating support frame 36 is connected with a funnel 37, and the bottom of the funnel 37 is detachably connected with a pest collecting box 38. Specifically, the pest collecting box 38 is detachably connected to the bottom of the funnel 37 by means of screw connection or the like.

[0031] In the embodiment, the insect killing assembly 30 further comprises a pest cleaning device 39 for cleaning the pests remaining on the electric net 35. The pest cleaning device 39 comprises a support frame 391 and a pulse electromagnetic valve 393. The support frame 391 is fixed on the lamp top cover 31. In the embodiment, the support frame 391 is substantially a U-shaped rod with an opening downward, and the number of the support frame 391 is four. The four support frames 391 are uniformly distributed along the circumference of the lamp top cover 31, and one end of each support frame 391 is fixed with the top surface of the lamp top cover 31. The pulse electromagnetic valve 393 is arranged on the support frame 391. In the embodiment, the number of the pulse electromagnetic valve 393 corresponding to the support frame 391 is four, and the four pulse electromagnetic valves 393 are respectively fixed on the ends of the four support frames 391 away from the lamp top cover 31. The gas outlet of the pulse electromagnetic valve 393 faces the outer wall of the electric net 35. The structure of the pulse electromagnetic valve 393 belongs to the prior art, and thus will not be described here.

[0032] The agricultural insecticidal device 100 further comprises a gas storage tank (not shown in the figure) for providing a gas source for the operation of the pulse electromagnetic valve 393. The gas storage tank is arranged on the support frame 10 and is connected with the pulse electromagnetic valve 393 through a pneumatic hose (not shown in the figure). Specifically, in the embodiment, a gas source placing box 60 is fixed on the vertical rod 12 of the support frame 10, and the gas storage tank is placed in the gas source placing box 60 so as to protect the gas storage tank. Two pneumatic hoses are connected with the gas storage tank, and the other ends of the two pneumatic hoses are detachably connected with the gas inlets of the two pulse electromagnetic valves 393 through plug-in or other ways.

[0033] In the embodiment, a photovoltaic panel 70 is further arranged on the top of the vertical rod 12 of the support frame 10, and a storage battery (not shown in the figure) is further arranged on the vertical rod 12 of the support frame 10, and the photovoltaic panel 70, the storage battery and the insecticidal assembly 30 are electrically connected through a circuit. In the embodiment, a storage battery placing box 90 is further fixed on the vertical rod 12 of the support frame 10, and the storage battery is placed in the storage battery placing box 90 so as to protect the storage battery through the storage battery placing box 90. The electricity is stored in the storage battery through solar power generation and is provided for the insect attracting lamp 33, the pulse electromagnetic valve 393 and the electric net 35. The connection circuit between the photovoltaic panel 70, the storage battery and the insecticidal assembly 30 is a prior art, and thus, the detailed description is omitted here to save the length. It can be understood that, in order to avoid the situation that the photovoltaic panel 70 cannot generate more electricity due to rainy days, cloudy days and other weather, the present application can also supply power to the insecticidal assembly 30 through a traditional power supply mode as an emergency treatment, for example, a battery can be directly used to supply power to the insecticidal assembly 30.

[0034] Please see Figure 4The lifting assembly 50 comprises a fixed connecting disc 51, a plurality of adjusting links 52, a sliding connecting disc 53, a plurality of pulling links 54, and at least one locking bolt 55. The fixed connecting disc 51 is fixed to the bottom of the vertical rod 12 of the support frame 10. The plurality of adjusting links 52 are evenly arranged along the circumference of the fixed connecting disc 51 and are hingedly connected to the fixed connecting disc 51 at one end. The free ends of the adjusting links 52 are provided with nail screws 523 for plugging into the ground. In this embodiment, the nail screws 523 are connected to the free ends of the adjusting links 52 through connecting plates 521. Specifically, one side of the connecting plate 521 is hingedly connected to the free end of the adjusting link 52 through a first hinge 56, and the nail screw 523 is vertically fixed to the other side of the connecting plate 521. The sliding connecting disc 53 is located above the fixed connecting disc 51 and is slidably sleeved on the vertical rod 12 of the support frame 10. The plurality of pulling links 54 are evenly arranged along the circumference of the sliding connecting disc 53 and are hingedly connected to the sliding connecting disc 53 at one end. The other ends of the plurality of pulling links 54 are respectively hingedly connected to the plurality of adjusting links 52 through second hinges 57. In this embodiment, the other ends of the pulling links 54 are hingedly connected to the substantially middle positions of the adjusting links 52. The locking bolt 55 penetrates the sliding connecting disc 53 and one of the sockets 11 to lock the sliding connecting disc 53 on the vertical rod 12, preventing the sliding connecting disc 53 from moving relative to the vertical rod 12.

[0035] Please refer to Figure 5 In this embodiment, the first hinge 56 and the second hinge 57 have the same structure and each comprise a hinge seat 58 and a connecting bolt 59. The hinge seat 58 of the first hinge 56 is fixed to the connecting plate 521, and the hinge seat 58 of the second hinge 57 is fixed to the adjusting link 52. The connecting bolt 59 penetrates the hinge seat 58, and the free end of the pulling link 54 and the free end of the adjusting link 52 are rotatably sleeved on the corresponding connecting bolt 59.

[0036] When the agricultural insecticidal device 100 is installed, first, the nail screws 521 at the free ends of the adjusting links 52 are inserted into the ground, and then the height position of the insecticidal assembly 30 is adjusted according to the height of the crops. Specifically, the locking bolt 55 is pulled out of the sliding connecting disc 53 and the socket 11, and then the sliding connecting disc 53 is slid along the vertical rod 12. When the sliding connecting disc 53 slides, the adjusting links 52 are pulled to move by the pulling links 54, so that the fixed connecting disc 51, the support frame 10 connected to the fixed connecting disc 51, and the insecticidal assembly 30 fixed to the support frame 10 are lifted together, thereby achieving the adjustment of the height position of the insecticidal assembly 30. When the height position of the insecticidal assembly 30 is adjusted to the right position, the locking bolt 55 is penetrated into the sliding connecting disc 53 and the corresponding socket 11.

[0037] When the agricultural insect killing device 100 is in use, the insect attracting lamp 33 emits light of a specific wavelength to attract pests to the light, and the pests attracted to the light are killed by the electric net 35. Part of the killed pests fall into the funnel 37 and are collected in the pest collecting box 38 along the funnel 37. Part of the killed pests remain on the electric net 35. If the pests remaining on the electric net 35 are too much, the insect killing effect of the insect killing assembly 30 will be affected. In the embodiment, the pests remaining on the electric net 35 can be cleaned regularly by the pest cleaning member 39. Specifically, the pests remaining on the electric net 35 can be cleaned by spraying high-speed gas to the outer wall of the electric net 35 by the pulse electromagnetic valve 393. The pests falling from the electric net 35 fall into the funnel 37 and are collected in the pest collecting box 38 along the funnel 37.

[0038] The agricultural insect killing device 100 described above drives the pulling connecting rod 54 and the adjusting connecting rod 52 to move by the sliding connecting disc 53, so that the supporting frame 10 and the insect killing assembly 30 thereon are lifted and lowered, and the height of the insect killing assembly 30 can be adjusted according to the height of the crops, so that the insect killing effect of the insect killing assembly 30 is improved. Meanwhile, the free end of the adjusting connecting rod 52 of the agricultural insect killing device 100 described above is inserted into the ground by the pinning screw 523, so that the installation is more stable, and each adjusting connecting rod 52 can rotate relative to the fixed connecting disc 51, so that the position of the pinning screw 523 can be adjusted according to the terrain, so that the agricultural insect killing device 100 is more suitable for installation in a field with uneven ground.

[0039] The agricultural insect killing device 100 described above can provide the gas sprayed by the pulse electromagnetic valve 393 by the gas storage tank, so that the gas is sprayed to the electric net 35 at a high speed at a fixed time, so that the pests remaining on the electric net 35 are blown off, and a large number of pests remaining on the electric net 35 to cause the insect killing efficiency to be reduced is avoided. In addition, the pests blown off from the electric net 35 can be received by the funnel 37 and guided to the pest collecting box 38 for collection.

[0040] It can be understood that the shape of the supporting frame 10 is not limited to the embodiment, and the supporting frame 10 can also be provided in other shapes as needed.

[0041] It can be understood that the number of the hooks 15, the insect killing assembly 30 and the pulse electromagnetic valve 393 can be set to other numbers as needed, and the utility model is not limited.

[0042] The above description is a detailed description of the preferred and feasible embodiment of the utility model, but the embodiment is not used to limit the patent application range of the utility model, and any equivalent change or modification change completed under the technical spirit of the utility model should belong to the patent range covered by the utility model.

Claims

1. An agricultural insecticidal device, comprising a support frame (10), an insecticidal assembly (30) arranged on the support frame (10), and a lifting assembly (50) arranged at the bottom of the support frame (10), characterized in that: The support frame (10) is vertically spaced apart and provided with a plurality of sockets (11); the lifting assembly (50) comprises a fixed connecting disc (51), a plurality of adjusting connecting rods (52), a sliding connecting disc (53), a plurality of pulling connecting rods (54) and at least one locking bolt (55); the fixed connecting disc (51) is fixed to the bottom of the support frame (10), a plurality of the adjusting connecting rods (52) are evenly arranged along the circumference of the fixed connecting disc (51) and one end is hinged to the fixed connecting disc (51), the free end of the adjusting connecting rod (52) is provided with a nail screw (523) for plugging with the ground; the sliding connecting disc (53) is located above the fixed connecting disc (51) and is slidingly sleeved on the support frame (10); a plurality of the pulling connecting rods (54) are evenly arranged along the circumference of the sliding connecting disc (53) and one end is hinged to the sliding connecting disc (53), the other end of a plurality of the pulling connecting rods (54) is respectively hinged to a plurality of the adjusting connecting rods (52); the locking bolt (55) penetrates the sliding connecting disc (53) and one of the sockets (51); the insect killing assembly (30) comprises a lamp top cover (31), a moth lamp (33) and an electric net (35), the top surface of the lamp top cover (31) is detachably connected with the support frame (10); the moth lamp (33) is connected to the bottom surface of the lamp top cover (31); the electric net (35) is arranged around the outer periphery of the moth lamp (33) and the top is fixedly connected to the lamp top cover (31); the insect killing assembly (30) further comprises a moth cleaning piece (39), the moth cleaning piece (39) comprises a bracket (391) and a pulse electromagnetic valve (393), the bracket (391) is fixed to the lamp top cover (31), the pulse electromagnetic valve (393) is arranged on the bracket (391), and the gas outlet of the pulse electromagnetic valve (393) faces the outer side wall of the electric net (35).

2. The agricultural insecticidal device of claim 1, wherein: The nail screw (523) is connected with the free end of the adjusting connecting rod (52) through a connecting plate (521), one side of the connecting plate (521) is hinged to the free end of the adjusting connecting rod (52), and the nail screw (523) is vertically fixed to the other side of the connecting plate (521).

3. The agricultural insecticidal device of claim 2, wherein: The free end of the adjusting connecting rod (52) is hinged to the connecting plate (521) through a first hinge (56), and the pulling connecting rod (54) is hinged to the adjusting connecting rod (52) through a second hinge (57).

4. The agricultural insecticidal device of claim 3, wherein: The first hinge (56) and the second hinge (57) both comprise a hinge seat (58) and a connecting bolt (59), the hinge seat (58) of the first hinge (56) is fixed to the connecting plate (521), the hinge seat (58) of the second hinge (57) is fixed to the adjusting connecting rod (52), the connecting bolt (59) penetrates the hinge seat (58), and the free end of the pulling connecting rod (54) and the free end of the adjusting connecting rod (52) are rotatably sleeved on the corresponding connecting bolt (59).

5. The agricultural insecticidal device of claim 1, wherein: The supporting frame (10) comprises a vertical rod (12), a horizontal plate (13) and a hook (15), the vertical rod (12) is slidably arranged in the sliding connecting disc (53) and is fixedly connected with the fixed connecting disc (51) at the bottom, the horizontal plate (13) is vertically fixed on the vertical rod (12), the hook (15) is fixed on the horizontal plate (13), and the insect killing assembly (30) is hooked on the hook (15).

6. The agricultural insecticidal device of claim 1, wherein: The supporting frame (10) is fixedly connected with an air source placing box (60), the air source placing box (60) is internally provided with a gas storage tank (40), and the gas storage tank (40) is connected with the pulse electromagnetic valve (393) through a pneumatic hose.

7. The agricultural pesticide dispensing device of claim 1, wherein: The bottom of the electric network (35) is connected with an insulating supporting frame (36), the insulating supporting frame (36) is connected with a hopper (37), and the bottom of the hopper (37) is detachably connected with a insect collecting box (38).

8. The agricultural pesticide dispensing device of claim 1, wherein: The top of the supporting frame (10) is provided with a photovoltaic panel (70), the supporting frame (10) is provided with a storage battery placing box (90), the storage battery placing box (90) is internally provided with a storage battery, and the photovoltaic panel (70), the storage battery (80) and the insect killing assembly (30) are electrically connected through a wire.

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