A fog cannon machine with easy adjustment of spray range

Abstract

The present invention relates to the field of fog cannons, specifically a fog cannon that is easy to adjust the spray range, including a base, a U-shaped bracket is rotatably connected to the middle position of the top of the base, a ring bracket is hinged on the upper part of the U-shaped bracket, a spray pipe is fixedly connected to the middle part of the ring bracket, a partition is fixedly connected to the left side of the top of the base, a single-tooth arc strip that matches the partition is fixedly connected to the left side of the U-shaped bracket, and a return mechanism that matches the partition is movably connected between the bottom of the single-tooth arc strip and the base. This fog cannon that is easy to adjust the spray range consists of a return mechanism, an adjustment mechanism and a switching mechanism; the swing cycle of the spray pipe is timed by the adjustment mechanism, and after the U-shaped bracket swings to a limited cycle, the adjustment mechanism is reset and contacts the switching mechanism, so that the switching mechanism operates and cuts off the swing effect of the U-shaped bracket and the spray pipe, so that the fog cannon can automatically close the swing state during use.

Description

Technical Field

[0001] The invention relates to the field of fog cannons, in particular to a fog cannon with a spray range that is easy to adjust. Background Art

[0002] A large amount of dust will be generated during the construction process at the construction site. Being in this environment for a long time is also harmful to the human body. Usually, fog cannons are needed to reduce dust during the construction process at the construction site.

[0003] The existing patent (publication number: CN112156817A) discloses a fog cannon for construction sites and a method of use, including a frame, movable wheels are fixed at the four corners of the lower end face of the frame, and a rotating disc rotates at the middle position of the upper end face of the frame. In the process of implementing this solution, the inventor found that the following problems in the prior art have not been well solved: 1. Since the fog cannon sprays the stored water to reduce dust, when the dust raised by construction restrictions is large, the fog cannon needs to swing to increase the spraying range. When a large range of dust falls, it is difficult for some existing fog cannons to automatically close the swing state and concentrate on reducing dust at the dust-raising points. The operator needs to manually close it, and the operation convenience is poor. Summary of the invention

[0004] The purpose of the present invention is to provide a fog cannon that is easy to adjust the spray range, so as to solve the problems raised in the above background technology: 1. It is difficult for some existing fog cannons to automatically turn off the swing effect during use. To achieve the above purpose, the present invention provides the following technical solutions: A fog cannon that is easy to adjust the spray range, including a base, a U-shaped bracket is rotatably connected to the middle position of the top of the base, the upper part of the U-shaped bracket is hinged with a ring bracket, and the middle part of the ring bracket is fixedly connected to a spray pipe;

[0005] A partition is fixedly connected to the left side of the top of the base, a single-tooth arc strip matched with the partition is fixedly connected to the left side of the U-shaped bracket, and a return mechanism matched with the partition is movably connected between the bottom of the single-tooth arc strip and the base;

[0006] The left side of the spray pipe is fixedly sleeved with a support ring, an adjustment mechanism matched with the partition is movably connected between the left side of the top of the base and the bottom of the support ring, and a switching mechanism matched with the adjustment mechanism is movably connected between the two sides of the partition and the base;

[0007] The return mechanism includes a return hole, and there are two return holes. The two return holes are symmetrically opened at the top of the base, and the two return holes correspond one-to-one to the two ends of the single-tooth arc strip. A return ring is slidably connected inside the return hole, and a pull rope is fixedly connected to the top of the return ring. The top of the pull rope passes through the return hole and is fixedly connected to the end of the corresponding single-tooth arc strip. A return spring is movably connected between the top of the return ring and the inner top surface of the return hole. The right side of the partition is symmetrically rotatably connected with a guide wheel, and the two guide wheels correspond one-to-one to the two pull ropes, and the surface of the pull rope overlaps the middle part of the guide wheel.

[0008] Preferably, the adjustment mechanism comprises a mounting groove, the mounting groove is opened on the left side of the top of the base, a motor is fixedly connected inside the mounting groove, an adjustment plate is movably sleeved on the upper part of the rotating end of the motor, and an adjustment pin is fixedly connected to one end of the adjustment plate away from the motor;

[0009] A No. 1 cone sleeve matching with the switching mechanism is slidably connected to the middle of the rotating end of the motor, an extrusion spring is movably connected between the bottom of the No. 1 cone sleeve and the top of the motor, four plug rods are fixedly connected to the top of the No. 1 cone sleeve at equal intervals along the circumference, and a plug hole matching with the plug rod is provided at the bottom of the adjustment plate, and the number of the plug holes is set to twelve, and the twelve plug holes are provided at equal intervals along the circumference at the bottom of the adjustment plate;

[0010] A swing plate is fixedly connected to the left side of the U-shaped bracket, the swing plate is arranged at the bottom of the partition, an adjustment slot is opened in the middle of the swing plate, and the upper part of the adjustment pin is slidably connected to the inside of the adjustment slot;

[0011] A single-tooth circular ring rod is rotatably connected to the left side of the top of the partition, and a one-way bearing is fixedly sleeved at the lower part of the single-tooth circular ring rod, and an adjusting toothed ring is fixedly sleeved on the outer ring of the one-way bearing, and the side wall of the adjusting toothed ring meshes with the side wall of the single-tooth arc strip, and a support tube is fixedly connected to the middle part of the top of the partition, and a synchronous gear rod is vertically slidably connected to the inside of the support tube, and the side wall of the synchronous gear rod meshes with the side wall of the single-tooth circular ring rod, and a compression spring is movably connected between the bottom of the synchronous gear rod and the inner bottom surface of the support tube, and a No. 2 cone sleeve matched with a switching mechanism is fixedly sleeved at the lower part of the synchronous gear rod, and the No. 2 cone sleeve is movably sleeved on the outside of the support tube;

[0012] An L-shaped bracket is fixedly connected to the left side of the top of the partition, and an annular scale sleeve is rotatably connected to the middle of the L-shaped bracket. The middle of the annular scale sleeve is movably sleeved on the upper part of the synchronous gear rod, and a locking bar is fixedly connected to the middle of the synchronous gear rod. The locking bar is rotatably connected to the inside of the annular scale sleeve, and an unlocking groove matching the locking bar is opened on the top of the annular scale sleeve;

[0013] An adjusting pointer ring is fixedly sleeved on the upper part of the synchronous gear rod, a supporting bearing is fixedly connected to the top of the synchronous gear rod, a threaded sleeve is fixedly connected to the inner ring of the supporting bearing, a threaded rod is threadedly connected to the top of the threaded sleeve, a cushion block is fixedly connected to the top of the threaded rod, an arc-shaped guide plate is fixedly connected to the top of the cushion block, a ball head slide rod is symmetrically slidably connected to the top of the arc-shaped guide plate, and the top of the ball head slide rod is fixedly connected to the bottom of the supporting ring.

[0014] Preferably, the surface of the rotating end of the motor is symmetrically provided with sliding grooves, the inner wall of the No. 1 cone sleeve is symmetrically fixedly connected with sliders, and the two sliders are slidably connected inside the two sliding grooves respectively.

[0015] Preferably, a positioning rod is fixedly connected to the inner bottom surface of the support tube, a positioning hole is opened at the axial center position of the bottom of the synchronous gear rod, and the upper part of the positioning rod is movably inserted into the interior of the positioning hole;

[0016] A ball is fixedly connected to the top of the support cylinder, and the top of the ball overlaps the bottom of the synchronous gear rod.

[0017] Preferably, the top and bottom of the locking strip are both rotatably connected with steel balls, the surface of the steel balls overlaps the inner wall of the annular scale sleeve, and the top of the annular scale sleeve is set as a glass surface;

[0018] The end of the adjusting pointer ring is arranged on the same side as the locking strip.

[0019] Preferably, a curved surface moving groove is formed at the top of the curved guide plate, and the bottom of the ball head slide rod is slidably connected inside the curved surface moving groove.

[0020] Preferably, a connecting bearing is fixedly connected to the middle portion of the L-shaped bracket, and the outer ring of the annular scale sleeve is fixedly connected to the inner ring of the connecting bearing.

[0021] Preferably, the switching mechanism includes a movable groove, and the movable groove is provided with two movable grooves, which are symmetrically opened on both sides of the base, and a circular switching plate is vertically slidably connected inside the movable groove, and the surface of the circular switching plate is symmetrically opened with oblique grooves, and through grooves are symmetrically opened on both sides of the partition plate, and the two through grooves correspond to the two circular switching plates one by one, and the upper part of the circular switching plate is slidably connected to the inside of the corresponding through groove;

[0022] The top of the partition and the top of the base are both fixedly connected with a sliding sleeve matched with the circular switching plate, the interior of the sliding sleeve is slidably connected with a switching sliding rod matched with the adjustment mechanism, and one end of the switching sliding rod close to the circular switching plate is fixedly connected with a pin shaft, and the pin shaft is slidably connected to the interior of the corresponding inclined slot;

[0023] A positioning ring is fixedly sleeved on the surface of the upper switching slide rod, and a return spring is movably connected between the side wall of the positioning ring and the side wall of the corresponding slide sleeve.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the present invention, with the cooperation of components such as the U-shaped bracket, the adjusting mechanism and the switching mechanism, the swinging period of the spray tube is timed by the adjusting mechanism. After the U-shaped bracket swings to a limited period, the adjusting mechanism is reset and contacts the switching mechanism, so that the switching mechanism operates and cuts off the swinging effect of the U-shaped bracket and the spray tube, so that the fog cannon can automatically turn off the swinging state during use, thereby improving the convenience of use.

[0026] In the present invention, through the coordinated use of components such as the U-shaped bracket, the single-tooth arc-shaped bar and the return mechanism, when the U-shaped bracket stops swinging, the return mechanism cooperates with the single-tooth arc-shaped bar to carry the U-shaped bracket and the spray pipe for reset adjustment, so that the spray pipe in the closed swinging state can concentrate on dust reduction treatment on the dust-generating points, thereby improving the dust reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A side view of the base and the spray pipe of the present invention;

[0028] Figure 2 A side sectional view of a local position of the base of the present invention;

[0029] Figure 3 For the present invention Figure 2 A magnified view of the structure at center A;

[0030] Figure 4 It is a side cross-sectional view of a partial position of the base and the U-shaped bracket of the present invention;

[0031] Figure 5 It is a side sectional view of the local position of the motor and the adjustment plate of the present invention;

[0032] Figure 6 It is a side cross-sectional view of the base and the local position of the adjusting pointer ring of the present invention;

[0033] Figure 7 It is a front view of the local position of the synchronous gear rod and the second taper sleeve of the present invention;

[0034] Figure 8 It is a side sectional view of a local position of the annular scale sleeve and the locking strip of the present invention;

[0035] Fig. 9 It is a side sectional view of the local position of the synchronous gear rod and the support cylinder of the present invention;

[0036] Fig.10 It is a side cross-sectional view of a partial position of the base and the circular switching plate of the present invention;

[0037] Fig.11 For the present invention Fig.10 A magnified view of the structure at B in the middle;

[0038] Fig.12 It is a side sectional view of the local position of the swing plate and the adjustment plate of the present invention.

[0039] In the figure: 1, base; 2, U-shaped bracket; 3, ring bracket; 4, spray tube; 5, partition; 6, single-tooth arc strip; 7, return mechanism; 701, return hole; 702, return ring; 703, pull rope; 704, return spring; 705, guide wheel; 8, support ring; 9, adjustment mechanism; 901, installation groove; 902, motor; 903, adjustment plate; 904, adjustment pin; 905, No. 1 cone sleeve; 906, extrusion spring; 907, plug rod; 908, plug hole; 909, swing plate; 910, adjustment groove; 911, single-tooth circular ring rod; 912, one-way bearing; 913, adjustment gear ring; 9 14. Support cylinder; 915. Synchronous gear rod; 916. Compression spring; 917. No. 2 taper sleeve; 918. L-shaped bracket; 919. Annular scale sleeve; 920. Locking strip; 921. Unlocking slot; 922. Adjustment pointer ring; 923. Support bearing; 924. Screw sleeve; 925. Threaded rod; 926. Spacer; 927. Arc guide plate; 928. Ball head slide rod; 10. Switching mechanism; 101. Movable slot; 102. Circular switching plate; 103. Oblique slot; 104. Through slot; 105. Sliding sleeve; 106. Switching slide rod; 107. Pin shaft; 108. Positioning ring; 109. Reset spring. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 12 The present invention provides a technical solution: a fog cannon that is easy to adjust the spray range, including a base 1, a U-shaped bracket 2 is rotatably connected to the middle position of the top of the base 1, a ring bracket 3 is hinged on the upper part of the U-shaped bracket 2, and a spray pipe 4 is fixedly connected to the middle part of the ring bracket 3. It should be noted that: a water tank is fixedly connected to the right side of the top of the base 1, and a hose is fixedly connected between the top of the water tank and the spray end of the spray pipe 4. The water inside the water tank is pumped out and sprayed through the sprayer at the spray end. The sprayer at the spray end is a prior art and will not be described in detail.

[0042] The left side of the top of the base 1 is fixedly connected with a partition 5, the left side of the U-shaped bracket 2 is fixedly connected with a single-tooth arc strip 6 that matches the partition 5, and the bottom of the single-tooth arc strip 6 is movably connected with the base 1 to form a return mechanism 7 that matches the partition 5. It should be noted that the bottom of the partition 5 is symmetrically fixedly connected with a support column, the bottom of the support column is fixedly connected to the top of the base 1, and the single-tooth arc strip 6 is arranged at the top of the partition 5.

[0043] A support ring 8 is fixedly sleeved on the left side of the spray tube 4, an adjustment mechanism 9 cooperating with the partition 5 is movably connected between the left side of the top of the base 1 and the bottom of the support ring 8, and a switching mechanism 10 cooperating with the adjustment mechanism 9 is movably connected between the two sides of the partition 5 and the base 1.

[0044] The return mechanism 7 includes a return hole 701, and there are two return holes 701. The two return holes 701 are symmetrically opened at the top of the base 1, and the two return holes 701 correspond one to one with the two ends of the single-tooth arc strip 6. The inside of the return hole 701 is slidably connected with a return ring 702, and the top of the return ring 702 is fixedly connected with a pull rope 703. The top of the pull rope 703 passes through the return hole 701 and is fixedly connected to the end of the corresponding single-tooth arc strip 6. A return spring 704 is movably connected between the top of the return ring 702 and the inner top surface of the return hole 701. The right side of the partition 5 is symmetrically rotatably connected with a guide wheel 705. The two guide wheels 705 correspond one to one with the two pull ropes 703, and the surface of the pull rope 703 overlaps the middle part of the guide wheel 705. It should be noted that: grooves are symmetrically opened on the right side of the partition 5, and two guide wheels 705 are rotatably connected to the inside of the two grooves respectively, and a guide rod is fixedly connected to the side of the inner wall of the groove away from the guide wheel 705, and the pull rope 703 is arranged between the corresponding guide wheel 705 and the guide rod, and the pull rope 703 is set as a steel wire rope; when the U-shaped bracket 2 stops rotating, with the cooperation of the pull rope 703 at both ends of the single-tooth arc strip 6 and the return spring 704, the single-tooth arc strip 6 rotates with the U-shaped bracket 2 to reset, so that the U-shaped bracket 2 and the swinging spray tube 4 are reset and moved.

[0045] In this embodiment, Figures 1 to 12 As shown, the adjustment mechanism 9 includes a mounting groove 901, which is provided on the left side of the top of the base 1, and a motor 902 is fixedly connected inside the mounting groove 901, and an adjustment plate 903 is movably sleeved on the upper part of the rotating end of the motor 902, and an adjustment pin 904 is fixedly connected to the end of the adjustment plate 903 away from the motor 902. It should be noted that an adjustment hole is provided on the end of the adjustment plate 903 close to the motor 902, and the adjustment plate 903 is movably sleeved on the rotating end of the motor 902 through the adjustment hole, and a stopper matched with the adjustment plate 903 is fixedly connected to the top of the rotating end of the motor 902.

[0046] A No. 1 cone sleeve 905 cooperating with the switching mechanism 10 is slidably connected to the middle of the rotating end of the motor 902, and an extrusion spring 906 is movably connected between the bottom of the No. 1 cone sleeve 905 and the top of the motor 902, and four plug rods 907 are fixedly connected to the top of the No. 1 cone sleeve 905 at equal intervals along the circumference, and a socket 908 cooperating with the plug rod 907 is provided at the bottom of the adjustment plate 903, and the number of the sockets 908 is set to twelve, and the twelve sockets 908 are arranged at the bottom of the adjustment plate 903 at equal intervals along the circumference. It should be noted that: when the lower end of the switching mechanism 10 is not pressed against the side wall of the No. 1 cone sleeve 905, the No. 1 cone sleeve 905 is pressed against the bottom of the adjustment plate 903 by the extrusion spring 906, so that the insertion rod 907 at the top of the No. 1 cone sleeve 905 is inserted into the socket 908 at the bottom of the adjustment plate 903. When the rotating end of the motor 902 rotates with the No. 1 cone sleeve 905, the No. 1 cone sleeve 905 rotates synchronously with the adjustment plate 903.

[0047] The left side of the U-shaped bracket 2 is fixedly connected with a swing plate 909, which is arranged at the bottom of the partition 5. An adjustment slot 910 is provided in the middle of the swing plate 909, and the upper part of the adjustment pin 904 is slidably connected inside the adjustment slot 910. It should be noted that the length of the adjustment slot 910 is set to 1.2 times the rotation diameter of the adjustment plate 903. When the adjustment plate 903 rotates with the first cone sleeve 905, the adjustment pin 904 on the adjustment plate 903 cooperates with the adjustment slot 910 on the swing plate 909 to slide, so that the swing plate 909 and the U-shaped bracket 2 reciprocate and swing on the top of the base 1.

[0048] A single-tooth circular ring rod 911 is rotatably connected to the left side of the top of the partition 5, and a one-way bearing 912 is fixedly sleeved on the lower part of the single-tooth circular ring rod 911. An adjusting tooth ring 913 is fixedly sleeved on the outer ring of the one-way bearing 912, and the side wall of the adjusting tooth ring 913 meshes with the side wall of the single-tooth arc strip 6. A support tube 914 is fixedly connected to the middle part of the top of the partition 5, and a synchronous gear rod 915 is vertically slidably connected inside the support tube 914. The side wall of the synchronous gear rod 915 meshes with the side wall of the single-tooth circular ring rod 911, and a compression spring 916 is movably connected between the bottom of the synchronous gear rod 915 and the inner bottom surface of the support tube 914. A No. 2 cone sleeve 917 that cooperates with the switching mechanism 10 is fixedly sleeved on the lower part of the synchronous gear rod 915, and the No. 2 cone sleeve 917 is movably sleeved on the outside of the support tube 914. It should be noted that: through the setting of the one-way bearing 912, when the single-tooth arc bar 6 rotates forward, it will mesh with the adjusting gear ring 913 once, and rotate once with the adjusting gear ring 913, the one-way bearing 912 and the single-tooth circular ring rod 911; when the single-tooth arc bar 6 reverses, the adjusting gear ring 913 will not rotate with the one-way bearing 912; when the single-tooth circular ring rod 911 rotates one circle, it will mesh with the synchronous gear rod 915 once, causing the synchronous gear rod 915 to rotate once inside the annular scale sleeve 919; when the synchronous gear rod 915 moves toward the inside of the support tube 914, the synchronous gear rod 915 moves downward with the No. 2 cone sleeve 917 and presses against the upper end of the switching mechanism 10.

[0049] An L-shaped bracket 918 is fixedly connected to the left side of the top of the partition 5, and an annular scale sleeve 919 is rotatably connected to the middle of the L-shaped bracket 918. The middle of the annular scale sleeve 919 is movably sleeved on the upper part of the synchronous gear rod 915. A locking bar 920 is fixedly connected to the middle of the synchronous gear rod 915. The locking bar 920 is rotatably connected to the inside of the annular scale sleeve 919, and an unlocking groove 921 that matches the locking bar 920 is opened on the top of the annular scale sleeve 919. It should be noted that: when the locking bar 920 rotates inside the annular scale sleeve 919 along with the synchronous gear rod 915, when the locking bar 920 rotates to the unlocking groove 921 position, the synchronous gear rod 915 and the locking bar 920 are released from the restricted state. At this time, the compression spring 916 presses the synchronous gear rod 915 to move up with the locking bar 920, so that the upper end of the switching mechanism 10 is released from the pressed state.

[0050] The upper part of the synchronous gear rod 915 is fixedly sleeved with an adjustment pointer ring 922, the top of the synchronous gear rod 915 is fixedly connected with a support bearing 923, the inner ring of the support bearing 923 is fixedly connected with a screw sleeve 924, the top of the screw sleeve 924 is threadedly connected with a threaded rod 925, the top of the threaded rod 925 is fixedly connected with a cushion block 926, the top of the cushion block 926 is fixedly connected with an arc guide plate 927, the top of the arc guide plate 927 is symmetrically slidably connected with a ball head slide bar 928, and the top of the ball head slide bar 928 is fixedly connected with the bottom of the support ring 8. It should be noted that: by rotating the screw sleeve 924, and under the restriction of the arc guide plate 927, the threaded rod 925 moves up and down inside the screw sleeve 924, and then the arc guide plate 927 and the two ball head slide bars 928 cooperate to rotate the spray pipe 4 inside the support ring 8 on the U-shaped bracket 2 to adjust the tilt angle.

[0051] In this embodiment, Figures 1 to 12 As shown, the surface of the rotating end of the motor 902 is symmetrically provided with slide grooves, and the inner wall of the first cone sleeve 905 is symmetrically fixedly connected with sliders, and the two sliders are slidably connected inside the two slide grooves. It should be noted that: through the cooperation of the slider and the slide groove, the first cone sleeve 905 can be rotated synchronously during the rotation of the motor 902.

[0052] In this embodiment, Figures 1 to 12 As shown, a positioning rod is fixedly connected to the inner bottom surface of the support cylinder 914, a positioning hole is opened at the axial center position of the bottom of the synchronous gear rod 915, and the upper part of the positioning rod is movably inserted into the interior of the positioning hole.

[0053] The top of the support tube 914 is fixedly connected with a ball, and the top of the ball overlaps the bottom of the synchronous gear rod 915. It should be noted that the ball is arranged to reduce the friction resistance of the synchronous gear rod 915 during the rotation process of the top of the support tube 914.

[0054] In this embodiment, Figures 1 to 12 As shown, the top and bottom of the locking bar 920 are both rotatably connected with steel balls, and the surface of the steel balls overlaps the inner wall of the annular scale sleeve 919. It should be noted that the steel balls are provided to reduce the friction resistance of the locking bar 920 during the rotation process inside the annular scale sleeve 919.

[0055] The end of the adjusting pointer ring 922 is arranged on the same side as the locking bar 920. It should be noted that the position of the locking bar 920 can also be quickly understood by adjusting the pointer ring 922.

[0056] In this embodiment, Figures 1 to 12 As shown, the top of the arc guide plate 927 is provided with an arc surface moving groove, and the bottom of the ball head slide bar 928 is slidably connected inside the arc surface moving groove. It should be noted that the width of the top of the arc surface moving groove is smaller than the diameter of the ball head slide bar, ensuring the stability of the ball head slide bar and the arc surface moving groove.

[0057] In this embodiment, Figures 1 to 12 As shown, a connecting bearing is fixedly connected to the middle of the L-shaped bracket 918, and the outer ring of the annular scale sleeve 919 is fixedly connected to the inner ring of the connecting bearing.

[0058] In this embodiment, Figures 1 to 12 As shown, the switching mechanism 10 includes a movable groove 101, and the movable grooves 101 are set to two. The two movable grooves 101 are symmetrically opened on both sides of the base 1. A circular switching plate 102 is vertically slidably connected inside the movable groove 101. The surface of the circular switching plate 102 is symmetrically opened with oblique grooves 103. Through grooves 104 are symmetrically opened on both sides of the partition 5. The two through grooves 104 correspond to the two circular switching plates 102 one by one. The upper part of the circular switching plate 102 is slidably connected inside the corresponding through grooves 104. It should be noted that: the inner bottom surface of the movable groove 101 is symmetrically and vertically fixedly connected with a guide rod, and the circular switching plate 102 is slidably connected between the two guide rods.

[0059] The top of the partition 5 and the top of the base 1 are fixedly connected with a sliding sleeve 105 that matches the circular switching plate 102, and the interior of the sliding sleeve 105 is slidably connected with a switching slide bar 106 that matches the adjustment mechanism 9, and the end of the switching slide bar 106 close to the circular switching plate 102 is fixedly connected with a pin 107, and the pin 107 is slidably connected inside the corresponding inclined groove 103. It should be noted that: the end of the switching slide bar 106 away from the circular switching plate 102 is set as a spherical surface to reduce the friction resistance of the switching slide bar 106 during use; when the synchronous gear 915 moves downward with the second cone sleeve 917, the end of the upper switching slide bar 106 is pressed to move toward the circular switching plate 102, and during the sliding process of the inclined groove 103 and the pin 107, the lower switching slide bar 106 moves synchronously toward the circular switching plate 102.

[0060] The surface of the upper switching slide bar 106 is fixedly sleeved with a positioning ring 108, and a return spring 109 is movably connected between the side wall of the positioning ring 108 and the side wall of the corresponding sliding sleeve 105. It should be noted that: when the synchronous gear rod 915 rises, the upper switching slide bar 106 is released from the compressed state, and the return spring 109 presses the positioning ring 108 and the upper switching slide bar 106 to move toward the synchronous gear rod 915. At this time, the lower switching slide bar 106 moves synchronously and presses against the side wall position of the No. 1 cone sleeve 905, so that the No. 1 cone rod is compressed and moves downward at the rotating end of the motor 902. At this time, the plug rod 907 at the top of the No. 1 cone sleeve 905 moves out from the position of the socket 908 at the bottom of the adjustment plate 903, so that the adjustment plate 903 cylinder is no longer rotated during the rotation of the rotating end of the motor 902.

[0061] The use method and advantages of the present invention: The fog cannon machine which is convenient for adjusting the spray range has the following working process:

[0062] like Figures 1 to 12 As shown, when in use, first press the adjustment pointer ring 922, so that the adjustment pointer ring 922 and the locking strip 920 on the synchronous gear rod 915 pass through the unlocking groove 921 position and enter the inside of the annular scale sleeve 919, and then rotate it again, and observe that the adjustment pointer ring 922 is loosened after rotating to a suitable position on the surface of the annular scale sleeve 919. In this process, the second cone sleeve 917 at the lower part of the synchronous gear rod 915 presses against the end position of the upper switching slide bar 106, and the pin shaft 107 on the switching slide bar 106 cooperates with the inclined groove 103 on the surface of the circular switching plate 102 to slide, so that the lower switching slide bar 106 is released from contact with the side wall of the first cone sleeve 905. At this time, the extrusion spring 906 presses the first cone sleeve 905 to rise on the rotating end surface of the motor 902, so that the insertion rod 907 at the top of the first cone sleeve 905 is inserted into the socket 908 at the bottom of the adjustment plate 903;

[0063] Then, the motor 902 is started to rotate the first cone sleeve 905, so that the first cone sleeve 905 rotates synchronously with the adjustment plate 903. During the sliding process of the adjustment pin 904 on the surface of the adjustment plate 903 and the adjustment groove 910 on the surface of the swing plate 909, the swing plate 909 swings the U-shaped bracket 2 back and forth on the top of the base 1, so that the spray pipe 4 on the top of the U-shaped bracket 2 swings back and forth, and dust reduction treatment is performed on a large range of dust;

[0064] Whenever the U-shaped bracket 2 swings back and forth once, the single-tooth arc strip 6 on the U-shaped bracket 2 meshes with the adjusting toothed ring 913 once, so that the adjusting toothed ring 913 meshes with the synchronous gear rod 915 in stages during the rotation of the single-tooth circular ring rod 911. At this time, the synchronous gear rod 915 rotates inside the annular scale sleeve 919 with the locking strip 920. When the synchronous gear rod 915 rotates to the position of the unlocking groove 921 with the locking strip 920, the compression spring 916 elastically recovers and brings the synchronous gear rod 915 inside the support tube 914, so that the synchronous gear rod 915 and the locking strip 920 are released from the restricted state. At this time, the lower part of the synchronous gear rod 915 The second cone sleeve 917 releases the pressure on the upper switching slide bar 106, and the switching slide bar 106 is reset by the reset spring 109 and moves toward the synchronous gear rod 915, and then the lower switching slide bar 106 moves synchronously and presses against the side wall position of the first cone sleeve 905, so that the first cone sleeve 905 is pressed downward. When the plug rod 907 on the first cone sleeve 905 is released from contact with the plug hole 908 at the bottom of the adjustment plate 903, the first cone sleeve 905 no longer rotates synchronously with the adjustment plate 903 during the rotation of the rotating end of the motor 902, so that the U-shaped bracket 2 no longer swings and sprays with the spray pipe 4, thereby automatically closing the swinging state of the spray pipe 4;

[0065] Finally, when the U-shaped bracket 2 stops swinging, the pull ropes 703 on both sides of the single-tooth arc strip 6, with the cooperation of the return spring 704 and the return ring 702, are pulled by the two pull ropes 703 to pull the single-tooth arc strip 6 to reset and rotate. At this time, the U-shaped bracket 2 rotates synchronously and returns the spray tube 4 to the initial state to concentrate dust reduction on the dust-raising point.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fog cannon with an adjustable spray range, comprising a base (1), characterized in that: A U-shaped bracket (2) is rotatably connected to the middle position of the top of the base (1); an annular bracket (3) is hingedly connected to the upper part of the U-shaped bracket (2); and a spray pipe (4) is fixedly connected to the middle part of the annular bracket (3); A partition plate (5) is fixedly connected to the left side of the top of the base (1); a single-tooth arc strip (6) matching the partition plate (5) is fixedly connected to the left side of the U-shaped bracket (2); a return mechanism (7) matching the partition plate (5) is movably connected between the bottom of the single-tooth arc strip (6) and the base (1); The left side of the spray pipe (4) is fixedly sleeved with a support ring (8); an adjustment mechanism (9) that cooperates with the partition (5) is movably connected between the left side of the top of the base (1) and the bottom of the support ring (8); and a switching mechanism (10) that cooperates with the adjustment mechanism (9) is movably connected between the two sides of the partition (5) and the base (1); The return mechanism (7) comprises a return hole (701), wherein the number of the return holes (701) is two, the two return holes (701) are symmetrically arranged at the top of the base (1), the two return holes (701) correspond one to one with the two ends of the single-tooth arc strip (6), a return ring (702) is slidably connected inside the return hole (701), a pull rope (703) is fixedly connected to the top of the return ring (702), and the pull rope (703) is The top of the return hole (701) is fixedly connected to the end of the corresponding single-tooth arc strip (6); a return spring (704) is movably connected between the top of the return ring (702) and the inner top surface of the return hole (701); the right side of the partition (5) is symmetrically rotatably connected to a guide wheel (705); the two guide wheels (705) correspond to the two pull ropes (703) one by one, and the surface of the pull rope (703) overlaps the middle of the guide wheel (705); The adjustment mechanism (9) comprises a mounting groove (901), wherein the mounting groove (901) is provided on the left side of the top of the base (1), a motor (902) is fixedly connected to the inside of the mounting groove (901), an adjustment plate (903) is movably sleeved on the upper part of the rotating end of the motor (902), and an adjustment pin (904) is fixedly connected to the end of the adjustment plate (903) away from the motor (902); A first cone sleeve (905) matching with the switching mechanism (10) is slidably connected to the middle of the rotating end of the motor (902); a compression spring (906) is movably connected between the bottom of the first cone sleeve (905) and the top of the motor (902); four plug rods (907) are fixedly connected to the top of the first cone sleeve (905) at equal intervals along the circumference; a plug hole (908) matching with the plug rod (907) is provided at the bottom of the adjustment plate (903); the number of the plug holes (908) is twelve, and the twelve plug holes (908) are provided at equal intervals along the circumference at the bottom of the adjustment plate (903); A swing plate (909) is fixedly connected to the left side of the U-shaped bracket (2), the swing plate (909) being arranged at the bottom of the partition plate (5), an adjustment slot (910) being provided in the middle of the swing plate (909), and the upper part of the adjustment pin (904) being slidably connected to the inside of the adjustment slot (910); The left side of the top of the partition (5) is rotatably connected to a single-tooth circular ring rod (911); the lower part of the single-tooth circular ring rod (911) is fixedly sleeved with a one-way bearing (912); the outer ring of the one-way bearing (912) is fixedly sleeved with an adjustment tooth ring (913); the side wall of the adjustment tooth ring (913) meshes with the side wall of the single-tooth arc strip (6); the middle part of the top of the partition (5) is fixedly connected to a support tube (914); the inner vertical sliding part of the support tube (914) is A synchronous gear rod (915) is movably connected thereto, the side wall of the synchronous gear rod (915) meshing with the side wall of the single-tooth circular ring rod (911), a compression spring (916) is movably connected between the bottom of the synchronous gear rod (915) and the inner bottom surface of the support tube (914), a second cone sleeve (917) matching the switching mechanism (10) is fixedly sleeved at the lower part of the synchronous gear rod (915), and the second cone sleeve (917) is movably sleeved on the outside of the support tube (914); An L-shaped bracket (918) is fixedly connected to the left side of the top of the partition (5); an annular scale sleeve (919) is rotatably connected to the middle of the L-shaped bracket (918); the middle of the annular scale sleeve (919) is movably sleeved on the upper part of the synchronous gear rod (915); a locking bar (920) is fixedly connected to the middle of the synchronous gear rod (915); the locking bar (920) is rotatably connected to the inside of the annular scale sleeve (919); and an unlocking groove (921) matching the locking bar (920) is provided on the top of the annular scale sleeve (919); The upper part of the synchronous gear rod (915) is fixedly sleeved with an adjusting pointer ring (922), the top of the synchronous gear rod (915) is fixedly connected with a supporting bearing (923), the inner ring of the supporting bearing (923) is fixedly connected with a threaded sleeve (924), the top of the threaded sleeve (924) is threadedly connected with a threaded rod (925), the top of the threaded rod (925) is fixedly connected with a cushion block (926), the top of the cushion block (926) is fixedly connected with an arc-shaped guide plate (927), the top of the arc-shaped guide plate (927) is symmetrically slidably connected with a ball head slide rod (928), and the top of the ball head slide rod (928) is fixedly connected to the bottom of the supporting ring (8); The switching mechanism (10) comprises a movable groove (101), wherein the number of the movable grooves (101) is two, and the two movable grooves (101) are symmetrically arranged on two sides of the base (1); a circular switching plate (102) is vertically slidably connected inside the movable groove (101); oblique grooves (103) are symmetrically arranged on the surface of the circular switching plate (102); through grooves (104) are symmetrically arranged on two sides of the partition plate (5); the two through grooves (104) correspond one to one with the two circular switching plates (102); and the upper part of the circular switching plate (102) is slidably connected inside the corresponding through grooves (104); The top of the partition (5) and the top of the base (1) are both fixedly connected with a sliding sleeve (105) that matches the circular switching plate (102); the interior of the sliding sleeve (105) is slidably connected with a switching sliding rod (106) that matches the adjustment mechanism (9); one end of the switching sliding rod (106) close to the circular switching plate (102) is fixedly connected with a pin shaft (107); the pin shaft (107) is slidably connected to the interior of the corresponding inclined groove (103); A positioning ring (108) is fixedly sleeved on the surface of the upper switching slide rod (106), and a return spring (109) is movably connected between the side wall of the positioning ring (108) and the side wall of the corresponding slide sleeve (105).

2. The fog cannon with easy-to-adjust spray range according to claim 1, characterized in that: The surface of the rotating end of the motor (902) is symmetrically provided with sliding grooves, and the inner wall of the first cone sleeve (905) is symmetrically fixedly connected with sliding blocks, and the two sliding blocks are respectively slidably connected inside the two sliding grooves.

3. The fog cannon with easy-to-adjust spray range according to claim 2, characterized in that: A positioning rod is fixedly connected to the inner bottom surface of the support cylinder (914); a positioning hole is opened at the axial center position of the bottom of the synchronous gear rod (915); and the upper part of the positioning rod is movably inserted into the interior of the positioning hole; A ball is fixedly connected to the top of the support cylinder (914), and the top of the ball overlaps the bottom of the synchronous gear rod (915).

4. The fog cannon with easy-to-adjust spray range according to claim 3 is characterized in that: The top and bottom of the locking strip (920) are both rotatably connected with steel balls, and the surface of the steel balls overlaps the inner wall of the annular scale sleeve (919); The end of the adjusting pointer ring (922) is arranged on the same side as the locking strip (920).

5. The fog cannon with easy-to-adjust spray range according to claim 4, characterized in that: The top of the arc-shaped guide plate (927) is provided with an arc-surface moving groove, and the bottom of the ball head sliding rod (928) is slidably connected inside the arc-surface moving groove.

6. The fog cannon with easy-to-adjust spray range according to claim 5, characterized in that: A connecting bearing is fixedly connected to the middle of the L-shaped bracket (918), and the outer ring of the annular scale sleeve (919) is fixedly connected to the inner ring of the connecting bearing.

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