Device for fastening an irrigation pipe for the irrigation of fruit plants

Description

[Technical field]

[0001] The invention relates to a device for fixing a watering cane to a thread-like support such as an iron wire or a ring secured to a stake, the watering cane being used as a riser for a sprinkler. More broadly, the invention falls within the field of agriculture and more particularly of arboriculture. Indeed, the invention also relates to a system and a method for irrigating tree crops. The invention applies in particular to the anti-frost irrigation of tree crops such as fruit trees. [Prior art]

[0002] Generally in warm geographical areas, watering of orchards is typically carried out at the base of the trees via a drip irrigation system or via a multi-jet sprinkler which rises approximately 30 to 40 cm from the ground.

[0003] However, this solution is not suitable in geographical areas that experience negative ambient temperatures during the flowering period. In the northern hemisphere, the flowering period generally extends between March and May depending on the latitude of each region. However, these so-called spring frosts are problematic in that they heavily impact production yields by destroying the flowers and / or emerging buds on fruit trees.

[0004] Currently, to prevent frost, anti-freeze spraying is the most ecological solution known and used by farmers. Anti-freeze spraying consists of watering fruit trees with micro-droplets that are projected above the tops of the fruit trees. In practice, these droplets are projected by sprinklers of the " sprinkler » ,which can be triggered manually or automatically depending on forecasts and / or weather conditions.

[0005] In practice, an anti-freeze sprinkler system includes, in particular, a temperature sensor, a solenoid valve which supplies an anti-freeze sprinkler network and a determined number of automatic sprinklers which are connected to the anti-freeze sprinkler network, each automatic sprinkler being raised above the treetops by a watering cane.

[0006] Thus, when the temperature drops below a certain threshold, for example 1°C, the temperature sensor directly or indirectly activates the solenoid valve, which then supplies the anti-freeze sprinkler network. The sprinklers then spray micro-droplets of water onto the trees.

[0007] When the water on the surface of flowers or buds freezes, the liquid-to-solid phase change of the water releases heat. This exothermic phase transition of water into ice releases calories that protect the bud or flower around which the water has turned to ice from freezing. Typically, continuous watering is then maintained until the temperature rises and the trees thaw completely.

[0008] For frost protection to be effective, each tree must be watered sufficiently so that the water reaches most of the flowers and buds it bears. If the water spray is slightly deflected, the buds, flowers, and even the tree itself can freeze. Therefore, farmers carefully position each cane so that the sprinkler adequately sprays each tree.

[0009] However, the antifreeze sprinkler system delivers water at a pressure generally between 0.5 bar and 7 bar, typically around 5 bar. This pressure, particularly when water is applied, generates vibrations in the sprinkler pipes, the first consequence of which is to divert the flow of water projected by the sprinklers.

[0010] To address this problem, farmers have developed rudimentary solutions to keep the watering canes in the optimal position for anti-freeze spraying.

[0011] First, the watering canes can be attached to the wires of the row of trees, called row wires. Said row wire is classically an iron wire stretched along the row of trees and which is used in certain tree crops and can have various functions such as mooring the trees. Furthermore, three wires arranged at different heights allow the growth of the tree along a substantially vertical axis. In practice, a watering cane can be attached to one of the wires of the row using a piece of wire which encloses both a cross-section of the cane and said row wire. The crop rows can also include stakes which can be used for example to tension said row wire and / or support hail protection nets. Farmers can thus use these stakes as supports to attach a watering cane.Once again, a piece of wire can directly attach the watering cane to the stake, or the wire can be attached to an eyelet or ring that is itself attached to the stake. The wire must be tight enough so that the watering cane does not move under the effect of vibrations. However, a wire attachment does not allow the watering cane to be held correctly, as the attachment descends over time, particularly under the effect of vibrations generated by the water pressure circulating in the watering canes. In this context, a wire attachment forces the farmer to regularly readjust the height of the attachment. In addition, as the trees grow, the position of the attachments must be raised, which involves, on the one hand, repositioning the attachments in relation to the row wires, and on the other hand, raising the attachments of the watering canes on the most suitable row wire.

[0012] Watering canes are made of aluminum which, unlike iron or steel, is a lightweight metallic material that is not affected by frost or heat waves. However, aluminum is difficult to weld due to its conductivity; this metal absorbs the heat that it spreads to the surrounding area, which is a problem because the melting point of this metal is low, and does not allow for cold welding. In addition, aluminum becomes brittle when heated during welding. Furthermore, the watering cane is about 1mm thick; therefore, if you manage to weld a fastener onto the watering cane, the welding point reduces the mechanical strength of the watering cane, which is then likely to break in the event of strong winds, which can happen during a storm.

[0013] Document US2002 / 0189160 describes a device for attaching a low-pressure sprinkler, supplied with water by a flexible watering hose. This watering system operates using low hydraulic pressure. The attachment device is configured to be attached to a first row wire that extends to the top of a crop. For this purpose, the attachment device comprises a first support for the sprinkler that has a slot that is threaded onto the first row wire, the first support comprising an opening allowing the connection between the flexible watering hose and the sprinkler. The attachment device comprises a second support that is positioned lower than the first support. The two supports are connected to each other by a telescopic rod. The second support is intended to be positioned on a row wire that is lower than the first row wire. The second support is equipped with a ring through which the flexible hose passes.This fixing device does not allow the fixing of a rigid watering rod which raises a sprinkler type sprinkler with a high hydraulic pressure which can reach around 7 bars. On the one hand, the fixing device of US2002 / 0189160 is not suitable for securing a solid watering rod to the thread-like support, whether it is a row wire or a ring secured to a stake, and on the other hand, is not designed to overcome the disadvantages caused by high pressures which are sources of vibrations of the watering rod.

[0014] US 5,474,268 A illustrates an alternative device for attaching a watering cane for irrigating tree crops.

[0015] The invention aims to overcome all of these drawbacks. It also aims to overcome the drawbacks of prior art watering systems. [Statement of the invention]

[0016] The invention aims to provide a fixing support on a thread-like support for a hydraulic pressure watering rod which raises a sprinkler - in particular an automatic sprinkler -, the fixing device making it possible to maintain the watering rod despite the vibrations generated by the hydraulic pressure.

[0017] To this end, the present invention relates to a device for fixing a watering cane for irrigating tree crops according to claim 1, the watering cane corresponding to an extension of a sprinkler on a filiform support such as an iron wire or a ring, the fixing device comprising: a base, a flange configured to grip the watering rod of the sprinkler, the flange comprises two jaws which extend respectively from the base to a free end carrying means for connecting the two jaws together, and a fixing extension which extends longitudinally, in a direction opposite to the jaws, between the base and a free edge, the fixing extension comprising a receiving groove configured to receive and block a portion of the filiform support.

[0018] The base thus carries a flange that grips the watering cane while the fixing extension is configured to attach and lock the fixing device to the thread-like support despite the vibrations of the watering cane. The connection means of the flange allow the movement of the fixing device on the watering cane in relation to the growth of the trees. Indeed, the thread-like support is often raised as the trees grow.

[0019] The invention is characterized in that the fixing extension comprises, on the one hand, an appendage projecting from the base and arranged at a junction between the flange and the fixing extension, and on the other hand, a locking tab which extends in a parallel direction of the appendage, the appendage and the locking tab forming the receiving groove. The receiving groove which is provided on the base at the interface between the flange and the fixing extension makes it possible to improve the strength.

[0020] Furthermore, the invention is also characterized in that the appendage comprises a first wall forming the receiving groove and having a convex profile curvature along at least one axis. This curvature gives said first wall a curved character which helps to block the filiform support within the receiving groove.

[0021] In embodiments, the appendage may include a second wall that has a concave profile and extends an inner wall of the flange. This feature makes it possible to reinforce the grip of the watering cane and thus limit the vibrations of the latter.

[0022] In embodiments, the locking tab extends longitudinally from a base secured to the attachment extension to a free end, the locking tab has a cylindrical body which has at least one portion whose cross-section decreases towards the free end.

[0023] The fixing lug is thus profiled at its free end, which facilitates the fitting of the receiving groove onto the filiform support.

[0024] In embodiments, the fixing extension comprises a receptacle receiving the base of the fixing lug, on the one hand, the receptacle is equipped with a bayonet receiver which comprises an anti-release system, and on the other hand, the base of the fixing lug which is equipped with two lugs configured to cooperate with the bayonet receiver. In these embodiments, the anti-release system makes it possible to lock the fixing lug while preventing it from being dislodged and to securely hold the fixing system. In addition, the fixing lug is thus shaped to facilitate its fitting onto the watering rod. It also forms a counterweight for the base of the fixing device.

[0025] In embodiments, the receiving groove has a V-shaped cross-section. The V-shape of the receiving groove improves the locking of the thread-like support at the bottom of the receiving groove.

[0026] In embodiments, the fixing device comprises a reinforcement structure for each jaw. The insertion of the jaw onto a watering rod is done by force by elastic deformation of each jaw, the reinforcement structure makes it possible to prevent the jaws from being damaged when the flange is positioned on the watering rod.

[0027] In embodiments, each jaw includes at least one locking shoulder to lock the clamp in a fixed position on the sprinkler rod. The locking shoulder increases the pressure that the clamp exerts on the sprinkler rod.

[0028] The invention also relates to an irrigation system for tree crops comprising: a determined number of sprinklers arranged above the tops of the trees of the arboricultural crop, a determined number of watering canes, each watering cane raises a sprinkler above the tops of the trees, and a determined number of fixing devices according to the invention, each fixing device makes it possible to secure a watering cane to at least one thread-like support such as an iron wire or a ring itself secured to a cultivation stake.

[0029] The invention also relates to a method for irrigating tree crops according to claim 9 comprising the following steps: Raising a determined number of sprinklers above the treetops, each sprinkler being raised by a watering cane, and Attaching the watering canes to at least one thread-like support such as a wire or a ring attached to a stake, each watering cane being attached to at least one thread-like support by a determined number of fixing devices according to the invention.

[0030] The method and the irrigation system have the same advantages as the fixing device they integrate respectively. [Description of the drawings]

[0031] Other characteristics and advantages of the invention will become apparent from reading the description which follows. This description is purely illustrative and must be read in conjunction with the appended drawings in which: [ Fig 1] is a perspective representation of a compliant attachment device of one embodiment of the invention, the attachment device attaching a watering cane to a crop row wire. [ Fig 2 ] is a side view of a fastening device according to one embodiment of the invention, the fastening device attaching a watering cane to a ring which is secured to a cultivation stake. [ Fig 3 ] is an exploded view representation of the fixing device of the figure 1 . [ Fig 4 ] is a perspective representation of the fixing device of the figure 1 . [ Fig 5 ] is a representation of an exploded view of the fixing device of the figure 2 . [ Fig 6 ] is a representation of a perspective view of the fixing device of the figure 2 . [ Fig 7 ] is a representation of a top view of the fixing device of the figure 2 . [Description of embodiments]

[0032] In reference to the figures 1 to 7 , the present invention relates to a fixing device 10 for a watering cane 100 used as a riser for a sprinkler - in particular an automatic sprinkler - of the "sprinkler" type. The fixing device 10 makes it possible in particular to attach watering canes 100 in the context of irrigating tree crops. In particular, the watering cane 100 is integrated into a tree crop irrigation system which is also the subject of the present invention.

[0033] In this context, the watering cane 100 has two functions, on the one hand, the watering cane 100 raises the sprinkler (" sprinkler") above the treetops in order to optimize the projection of droplets - in particular micro-droplets - of water, and on the other hand, the watering rod 100 makes it possible to connect the sprinkler to an irrigation or anti-freeze sprinkler network which extends, for example, at ground level of a row of crops.

[0034] As illustrated in Figures 1 and 2 , the fixing device 10 attaches the watering cane 100 to a threadlike support 200 or to an eyelet 201 of a stake 202. In this example, the watering cane 100 has grooves 101. However, the watering cane 100 can also be smooth and have a circular cross-section. In the example of the figure 1 , the filiform support is constituted by a crop row wire 200. The crop row wire 200 may correspond to a trellising wire which extends from one end of the crop row to the other.

[0035] In the example of the figure 2, the filiform support is constituted by a ring 201 itself secured to a stake 202. The stake 202 can be specifically planted to support one or more rings 201 in order to support a fixing device 10. However, the stake 202 can also support a row wire as described previously. The stake 202 can also contribute to supporting at least one hail protection net.

[0036] As illustrated in figures 3 to 6 , the fixing device 10 comprises a first face 12 and a second face 13. The first face 12 is oriented upwards at Figures 1 and 2, while the second face 13 is oriented downwards. In one embodiment, the second face 13 is technical and allows the device to be fixed on a filiform support 200, 201. The first face 12 is smooth. In addition, the fixing device 10 comprises a base 11 but also a flange 20 and a fixing extension 30 which extend respectively from the base 11.

[0037] In this example, the flange 20 is configured to grip the watering rod 100 of the sprinkler. For this purpose, the flange 20 comprises two jaws 21, 22 which extend respectively from the base 11 to a free end 23, 24. In this example, each jaw 21, 22 extends in a curved manner. The two jaws 21, 22 extend around a central axis AA visible in figures 3 And 6 . In particular, the base 11 comprises an internal wall 14 (as shown in Figure 5) which defines with an internal wall 25 of each jaw 21, 22 a clamping surface with which the flange 20 grips the watering rod 100. The flange 20 may have an internal diameter of between 30 mm and 100 mm. However, depending on the diameter of the watering rods 100, the internal diameter of the flange 20 may be different from these values.

[0038] Each free end 23, 24 is formed by a protrusion defining an ear. As illustrated in figures 2 to 6 , each ear carries connection means 26, 27 which make it possible to secure the two jaws 21, 22 together. In this example, the connection means comprise a hole 26 provided on the ear of each free end 23, 24.

[0039] As can be seen in the figures 2 And 4 à 6, the connection means may comprise an imprint 27 formed in the ear of one end 23 around the bore 26. The imprint 27 makes it possible to optimize the tightening of a screw head or a bolt head whose shape and dimensions are complementary to the imprint 27. Here, the imprint 27 has a hexagon shape. In this example, a first jaw 22 carries a bore 26 around which an imprint 27 is arranged. The second jaw 23 has at its end 24 a simple bore 26.

[0040] In one embodiment, the fixing device 10 may also comprise a reinforcement structure 28 for each jaw 21, 22. This reinforcement structure 28 is notably visible in the figures 3 And 5. In particular, the reinforcing structure 28 extends over an external wall of each jaw 21, 22. Here, the reinforcing structure 28 extends along a longitudinal axis defined between the base 11 and the end 23, 24 of each jaw 21, 22. Said longitudinal axis may be median and transverse to the wall of each jaw 21, 22. As illustrated in figures 3 And 5 , the reinforcement structure is here constituted by a protruding bead from the external wall of each jaw 21, 22.

[0041] In a particularly visible embodiment at figures 4 And 5, each jaw 21, 22 comprises at least one locking shoulder 29. The locking shoulder 29 is arranged on the inner wall 25 of a jaw 21, 22. The locking shoulder 29 extends longitudinally over the entire height of a jaw 21, 22. The height of a jaw 21, 22 is defined by the distance between each chamfer of the jaw 21, 22. In the example illustrated in figures 4 And 5 , each jaw 21, 22 has two locking shoulders 29. Here, the locking shoulders 29 of the two jaws are arranged symmetrically with respect to a plane of symmetry P which is transverse and median of the fixing device 10 (see Figure 5 ). The locking shoulders 29 increase the clamping pressure of the flange 20 on the watering rod 100. The locking shoulders 29 are even more effective when the watering rod 100 is grooved as shown in Figures 1 and 2 .

[0042] As illustrated in figures 1 to 7, the fixing extension 30 of the fixing device 10 extends longitudinally in a direction opposite to the jaws 21, 22. In this example, the fixing extension extends between the base 11 and a free edge 31. Here, the free edge 31 has a rounded shape, however, any other shapes could be envisaged. The fixing extension 30 makes it possible to hang the fixing device 10 on a filiform support 200, 201 as illustrated in Figures 1 and 2 . For these purposes, the fixing extension 30 comprises a receiving groove 32 configured to receive and block a portion of the filiform support 200, 201. The receiving groove 52 is arranged on the second face 13 of the fixing device 10.

[0043] As is particularly visible in the figures 3 And 6, the fixing extension 30 comprises an appendage 33, 34 which projects from the second face 13 of the base 11. The appendage 33, 34 is arranged on the base 11 at a junction between the flange 20 and the fixing extension 30. The appendage 33, 34 extends perpendicular to the axis in which the fixing extension 30 extends. In particular, the appendage 33, 34 extends in a direction parallel to the central axis AA of the flange 20. The fixing extension 30 also comprises a locking tab 35 as can be seen in figures 1 to 6 The locking tab 35 extends longitudinally in a direction parallel to the appendage 33, 34.

[0044] More particularly, the locking tab 35 extends longitudinally over a distance d from a base 350 secured to the fixing extension 30 to a free end 351 (see figure 3). The distance d corresponds to the height of the locking tab 35. The distance d can measure between 40 and 100 mm. In the present example, the locking tab 35 has a cylindrical body which has a decreasing cross-section from its base 350 to its free end 351. Indeed, the cylindrical body of the locking tab 35 comprises in particular a profiled portion 352 which extends from the mid-height of the locking tab 35 to its free end 351. The profiling of the locking tab 35 facilitates the installation of the fixing device 10 on a filiform support 200, 201 which can be located at a high height from the ground, for example between 2 and 5 m high from the ground. The profiling guides the insertion of the filiform support 200, 201 into the receiving groove 32. In fact, the appendage 33, 34 and the locking tab 35 cooperate to form the receiving groove 32 of the filiform support. More particularly, as can be seen in figures 4 And 6, the cylindrical portion of the locking tab 35 forms with the appendage 33, 34 the receiving groove 52.

[0045] In the example illustrated in figures 3 , 5 And 7 , the fixing extension 30 comprises a receptacle 36 receiving the base 350 of the fixing lug 35. The receptacle 36 is in fact a blind hole which is provided in the fixing extension 30 between the receiving groove 32 and the free end 31. The receptacle 36 is open at the level of the second face 13 of the fixing device 10.

[0046] In this example, the receptacle 36 is equipped with a bayonet receiver. Conventionally, the bayonet receiver comprises two insertion slots 360 and a radial locking notch disposed at the bottom of each insertion slot 360. The insertion slots 360 are diametrically opposite one another. In addition, the bayonet receiver comprises an anti-unblocking system. The anti-unblocking system is constituted by locking notches adapted to receive lugs 353 of the fixing lug 35 and to cooperate with the lugs 353 of the fixing lug 35 by locking the locking lug 35 in the receptacle 36 under the inverse effect (against) the rotation of the watering rod 100 carrying the sprinkler.

[0047] In parallel, the base 350 of the fixing lug 35 can be equipped with two lugs 353 configured to cooperate with the bayonet receiver. The two lugs 353 are diametrically opposite each other. Thus, the locking lug 35 is inserted into the receptacle 36 by inserting its base 350 and the lugs respectively into the receptacle 36 and the two insertion slots 360.

[0048] As illustrated in figures 3 And 6 , the appendage 33, 34 may comprise a first wall 330, 340 which forms the receiving groove 32. This first wall 330, 340 has a convex profile curvature along at least one axis. In the example of the figure 7, the first wall 340 is convex along an axis transverse to the direction in which the fixing extension 30 extends. This convexity is represented by a curved double arrow which follows the curved contour of the first wall 340. It should be noted that the fixing devices 10 shown in the other figures may have a first wall 330, 340 which also has this convexity. The convex nature of the first wall 330, 340 makes it possible to block the filiform support 200, 201 within the receiving groove 32.

[0049] It should be noted that the upper portion 331, 341 of the first wall 330, 340 of each appendage 33, 34 may be convex along an axis perpendicular to said transverse axis of the first wall 330, 340 (see in particular figures 3 , 5 and 6 ). This convexity makes it possible to guide the filiform support 200,201 towards the receiving groove 32 when an operator attaches the watering cane 100.

[0050] As illustrated in figures 3 to 7 , the appendage 33, 34 comprising a second wall 332, 342 has a concave profile. The second wall 332, 342 is opposite the first wall 330, 340. As can be seen in figures 4 And 5 the second wall 332, 442 extends the internal wall 25 of the flange 20. The second wall 332, 342 makes it possible to increase the contact surface with the watering rod 100 and thus to reduce the vibrations of the watering rod 100. The first walls 330, 340 promote the maintenance of said row wire 200 in the receiving groove 32 during watering. Furthermore, the second walls 332, 342 are adapted to be able to limit the oscillation of the rod relative to the fixing device 10 which would be such as to allow the exit of the row wire from the receiving groove 32.

[0051] In the example of the figures 2 to 4, the receiving groove 32 has a V-shaped cross-section. This embodiment is more particularly suitable for attaching the fixing device 10 to a filiform support 200, 201. For this, the fixing extension 30 comprises two reinforcing pieces 37 which are arranged at the edge of the receiving groove 32 on either side of the receptacle 36. The two reinforcing pieces 37 are aligned at the edge of the receiving groove 32 along an axis parallel to the axis B, B along which the receiving groove 32 extends (see figure 4 ). Each reinforcing piece 37 has an inner wall that extends over the edge of the receiving groove 32 and cooperates with the appendage 33 and the locking tab 35 to form the receiving groove 32. In addition, each reinforcing piece 37 includes a curved wall configured to fit the cylindrical body of the locking tab 35.

[0052] In the example of the figures 5 to 7, the fixing device 10 comprises a receiving groove 32 wider than the receiving groove 32 of the device 10 of the figures 2 to 4 , in order to be suitable for receiving a ring-type filiform support.

[0053] In the example shown in figure 7 , the fixing device 10 extends from the ends 23, 24 of each jaw 21, 22 to the free end 31 of the extension 30 by a distance D which can be between 60 mm and 200 mm. However, the distance D can be different depending on the dimensions of the watering rods that the fixing device 10 must fix to the filiform support.

[0054] The invention also relates to an irrigation system for tree crops. In particular, the irrigation system may be an anti-frost irrigation system. The irrigation system comprises a determined number of sprinklers arranged above the tops of the trees of the tree crop. In this case, the sprinkler is of the " sprinkler » and is capable of projecting water droplets.

[0055] The irrigation system consists of a specific number of watering canes. The number of watering canes depends on the size of the orchard and the number of trees to be irrigated and / or protected from frost depending on the season. In practice, each watering cane raises a sprinkler above the treetops in the orchard.

[0056] The irrigation system comprises a determined number of fastening devices 10 according to the invention. In particular, each watering cane 100 can be attached at different heights to a filiform support 200, 201, this to limit the vibrations due to the hydraulic pressure of the water that it carries towards the sprinklers. For example, a watering cane can be attached by three fastening devices which are respectively connected to a filiform support arranged at a defined height from the ground. Thus, each fastening device 10 makes it possible to secure a watering cane 100 to at least one filiform support such as an iron wire or a ring itself secured to a cultivation stake.

[0057] The invention also relates to a method for irrigating tree crops. The irrigation method can also be applied to an anti-freeze irrigation method. However, nothing prevents the irrigation method according to the invention from being applied instead of or in addition to an anti-freeze irrigation method.

[0058] The irrigation method comprises a step of raising a determined number of sprinklers above the treetops. In particular, each sprinkler is raised by a watering cane 100.

[0059] The irrigation method also comprises a step of securing the watering canes to at least one filiform support such as an iron wire or a ring secured to a stake. Each watering cane 100 is secured to at least one filiform support by a determined number of fixing devices 10 according to the invention. A watering cane 100 can be secured by several fixing devices 10 distributed at different heights depending on the arrangement of the filiform supports 200, 201 within the tree crop.

Claims

1. A device for fixing (10) an irrigation cane (100) for irrigating tree crops, the irrigation cane (100) corresponding to a riser of a sprinkler on a filamentary support (200,201) such as a wire or a ring, the device for fixing including: - a base (11), - a clamp (20) configured to enclose the irrigation cane (100) of the sprinkler, the clamp (20) includes two jaws (21, 22) extending respectively from the base (11) to a free end (23, 24) with means for connecting the two jaws (21, 22) together, and a fixing extension (30) extending longitudinally, in a direction opposite to the jaws (21, 22), between the base (11) and a free edge (31), the fixing extension (30) including a receiving groove (32) configured to receive and block a portion of the filamentary support (200,201), characterized in that the fixing extension (30) includes, on one hand, an appendage (33, 34) projecting from the base (11) and arranged at a junction between the clamp (20) and the fixing extension (30), and on the other hand, a locking tab (35) extending according to a direction parallel to the appendage (33, 34), the appendage (33, 34) and the locking tab (35) forming the receiving groove (32), and in that the appendage (33, 34) includes a first wall (330, 340) forming the receiving groove (32) which presents a convex profile curvature according to at least one axis.

2. The device for fixing (10) according to claim 1, wherein the appendage (33, 34) includes a second wall (332, 342) which presents a concave profile extending an internal wall (25) of the clamp (20).

3. The device for fixing (10) according to any one of claims 1 and 2, wherein the locking tab (35) extends longitudinally from a base (350) integral with the fixing extension (30) to a free end (351), the locking tab (35) has a cylindrical body which presents at least a portion the cross section of which decreases in the direction of the free end (351).

4. The device for fixing (10) according to claim 3, wherein the fixing extension (30) comprises a receptacle (36) receiving the base (350) of the locking tab (35), on one hand, the receptacle (36) is equipped with a bayonet receiver that comprises an anti-release system, and on the other hand, the base (350) of the locking tab (35) which is equipped with two lugs (353) configured to cooperate with the bayonet receiver.

5. The device for fixing (10) according to any one of claims 1 to 4, wherein the receiving groove (32) presents a V-shaped cross section.

6. The device for fixing (10) according to any one of claims 1 to 5, which includes a reinforcement structure (28) for each jaw (21, 22).

7. The device for fixing (10) according to any one of claims 1 to 6, wherein each jaw (21, 22) comprises at least one blocking shoulder (29) to block the clamp (20) in a fixed position on the irrigation cane (100).

8. A tree crop irrigation system including: - a determined number of sprinklers arranged overhanging the treetops of the tree crop, - a determined number of irrigation canes (100), each irrigation cane (100) raises a sprinkler above the treetops, and - a determined number of devices for fixing (10) defined according to any one of claims 1 to 7, each device for fixing (10) allows an irrigation cane (100) to be secured to at least one filamentary support (200,201) such as a wire or a ring itself secured to a crop stake.

9. A method for irrigating tree crops comprising the following steps: - Raising a determined number of sprinklers overhanging the treetops, each sprinkler being raised by an irrigation cane (100), and - Securing the irrigation canes (100) to at least one filamentary support (200,201) such as a wire or a ring secured to a stake, each irrigation cane (100) being secured to at least one filamentary support (200,201) by a determined number of devices for fixing (10) defined according to any one of claims 1 to 7.