Forestry greening spraying device capable of improving spraying effect

Abstract

The invention provides a forestry greening spraying device capable of improving the spraying effect, and relates to the technical field of spraying devices. A tank cover is screwed and plugged on an opening in the top end of the pressure storage tank, and a vertically-arranged pipe sleeve is formed at the top end of the tank cover; a spray pipe is mounted in the pressure storage tank and the pipe sleeve in a sliding manner; the whole spray pipe is jointly composed of an upper combined pipe, a bottom combined pipe and a connecting pipe, wherein the connecting pipe is detachably connected between the upper combined pipe and the bottom combined pipe. The outer side of the circumferential side wall of the connecting pipe is sleeved with a sealing water bag of an annular structure in an adhesive mode. A piston balance weight ring is formed at the bottom end of the bottom combined pipe, and an annular rubber ring is fixed to the top end of the piston balance weight ring in an adhering mode. A horizontal partition plate is formed in the middle of the interior of the connecting pipe. The annular rubber ring and the sealing water bag are matched to form double sealing of the sliding gap, and compared with the prior art, the sealing effect on the sliding gap can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of spraying devices, and in particular to a spraying device for forestry greening which can improve the spraying effect. Background Art

[0002] A sprinkler device refers to a sprinkler device specially designed for use in forestry greening, which aims to improve the spraying effect and ensure that plants receive uniform and sufficient water.

[0003] Some existing spray devices are configured to have the spray pipe and the spray head in a slidable, telescopic and hidden form. However, the telescopic sliding gap between the spray pipe and the water storage punching container mostly relies on a single extrusion seal of a rubber sealing pad arranged at the tail end of the spray pipe, resulting in a poor sealing effect on the telescopic sliding gap. During long-term spraying use, water is easily leaked in large quantities through the telescopic sliding gap that is not tightly sealed, resulting in excessive waste and consumption. Summary of the invention

[0004] In view of this, the present invention provides a sprinkler device for forestry greening that can improve the sprinkler effect, so as to solve the problem that the sealing effect of the telescopic sliding gap is poor. During long-term sprinkler use, water is easily leaked in large quantities through the loosely sealed telescopic sliding gap, resulting in excessive waste and consumption.

[0005] The technical solution proposed by the present invention is: a forestry greening spraying device capable of improving the spraying effect, specifically comprising: a pressure storage tank; a tank cover is screwed and sealed on the top opening of the pressure storage tank, and a vertically arranged pipe sleeve is formed on the top of the tank cover; a spray pipe is slidably installed inside the pressure storage tank and the pipe sleeve; The nozzle as a whole is composed of an upper combined tube, a bottom combined tube and a connecting tube, wherein the connecting tube is detachably connected between the upper combined tube and the bottom combined tube; a sealing water bag of an annular structure is glued and sheathed on the outer side of the circumferential side wall of the connecting tube; a piston counterweight ring is formed at the bottom end of the bottom combined tube, the central through hole of the piston counterweight ring is connected to the bottom combined tube, and an annular rubber ring is glued and fixed to the top of the piston counterweight ring; a horizontal partition is formed in the middle position of the interior of the connecting tube, and two circles of water holes are symmetrically opened through the upper and lower parts of the circumferential side wall of the connecting tube close to the horizontal partition, and the two circles of water holes are respectively connected with the upper and lower halves of the internal space of the sealed water bag; Under the stamping action of the water pressure inside the pressure storage tank, the nozzle slides upward as a whole, and the sealing water bag is expanded and the sliding plug is inserted into the pipe sleeve. When the sealing water bag sliding plug is inserted into the pipe sleeve, the outer part and the circumferential inner wall of the pipe sleeve are squeezed and sealed; as the nozzle slides upward, the annular rubber ring abuts and seals on the bottom opening of the pipe sleeve.

[0006] Furthermore, A vertically arranged double-rotation bolt is rotatably installed through the center of the horizontal partition, and two U-shaped push frames are symmetrically screwed and installed on the double-rotation bolt with two threaded sections arranged in reverse rotation up and down; Two semicircular sliding strips are symmetrically protruded from the outer sides of the two vertical side plates of the U-shaped push frame.

[0007] Furthermore, The upper and lower ends of the connecting pipe are symmetrically formed with two short inserts, and the outer circumferential walls of the short inserts are adhesively sleeved with rubber sealing sleeves; The two short inserts are respectively plugged and matched with the bottom end of the upper combined tube and the bottom combined tube, and the two rubber sealing sleeves are respectively squeezed and sealed with the circumferential inner wall of the bottom end of the upper combined tube and the circumferential inner wall of the bottom combined tube.

[0008] Furthermore, The upper and lower threaded sections of the double-rotation bolt are respectively arranged in two short inserts, and the two U-shaped push frames are respectively slidably arranged inside the two short inserts.

[0009] Furthermore, Two vertically arranged semicircular slide grooves are symmetrically provided on the circumferential inner wall of the short insert tube, and the two semicircular slide bars on each U-shaped push frame are slidably matched with the two semicircular slide grooves on the short insert tube at the corresponding position.

[0010] Furthermore, A retaining ring is formed in the bottom end of the upper combined tube, and a retaining ring is formed in the bottom side of the bottom combined tube, and the head ends of the two short inserts are in contact with the retaining ring and the retaining ring respectively; The inner diameters of the retaining ring and the retaining ring are both smaller than the inner diameter of the short cannula.

[0011] Furthermore, When the two U-shaped push frames slide away from each other up and down, the head ends of the four vertical side plates on the two U-shaped push frames respectively abut against the inner ring protrusions of the retaining ring and the retaining ring.

[0012] Furthermore, A spray head is screwed and installed on the top of the upper combined pipe; A limiting ring is formed in the top portion of the pipe sleeve, and in an idle state, the nozzle slides down and is hidden in the top portion of the pipe sleeve, and the bottom end abuts against the limiting ring; The piston counterweight ring is slidably located inside the pressure storage tank, and a small sliding gap is maintained between the piston counterweight ring and the circumferential inner wall of the pressure storage tank; An L-shaped water inlet pipe is fixedly connected to the bottom of the bottom plate of the pressure storage tank.

[0013] The present invention provides a spraying device for forestry greening that can improve the spraying effect, which has the following beneficial effects: 1. The telescopic movement of the nozzle and the sprinkler head can be automatically driven by the gravity of the nozzle and the piston counterweight ring and the water supply pressure, which eliminates the need to configure an additional telescopic lifting and retracting driving device for the nozzle and the sprinkler head and the need to configure an additional electrical component for automatic start-stop telescopic control for the driving device, which helps to reduce the overall cost of the sprinkler device.

[0014] Second, through the interception and pressure-maintaining effect of the upper circle of water holes, the irrigation water inside the pressure storage tank can press and expand the sealed water bag when passing through the sealed water bag, and the outer part of the expanded sealed water bag is squeezed and contacted with the circumferential inner wall of the pipe sleeve, so as to seal the sliding gap between the nozzle and the pipe sleeve; when the piston counterweight ring and the nozzle are pushed upward, the annular rubber ring is pressed and sealed on the bottom opening of the pipe sleeve, so as to squeeze and seal the bottom annular opening of the above sliding gap, which can form a double seal for the sliding gap in cooperation with the sealing water bag. Compared with the existing technology that simply relies on the annular rubber ring to seal the sliding gap, it can effectively improve the sealing effect of the sliding gap, avoid the large amount of irrigation water leaking through the sliding gap during long-term use, and greatly reduce the waste and consumption of water resources by the spraying device.

[0015] 3. The double-rotation bolt can be rotated forward to drive the two U-shaped push frames to slide upward and downward, and the retaining ring and the retaining ring are pushed upward and downward synchronously, so that the upper combined tube and the bottom combined tube can be separated from the two short plugs at one time to complete the disassembly of the connecting tube. This saves the trouble of having to separate the upper combined tube and the bottom combined tube from the short plug in steps to complete the disassembly of the connecting tube, helps to simplify the disassembly steps of the connecting tube and the sealing water bag, and improves the efficiency of disassembly and replacement of the sealing water bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0017] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture: Figure 1 The overall structural diagram of the present invention is shown; Figure 2 The overall bottom side structural schematic diagram of the present invention is shown; Figure 3 A schematic diagram of the inner structure of a half-section of a pressure storage tank of the present invention is shown; Figure 4 A schematic diagram showing a nozzle extending state of the present invention is shown; Figure 5 A schematic diagram showing a disassembled state of the connecting pipe of the present invention is shown; Figure 6A schematic diagram of the inner side structure of a half-section of the connecting pipe of the present invention is shown; Figure 7 A schematic diagram of the inner side structure of a half-section of the upper combined tube of the present invention is shown; Figure 8 A schematic diagram of the disassembly state of the double-rotation bolt of the present invention is shown.

[0019] List of reference numerals: 1. Pressure storage tank; 101. Tank cover; 102. Pipe sleeve; 1021. Limiting ring; 103. L-shaped water inlet pipe; 2. Nozzle; 201. Upper combined pipe; 2011. Retaining ring; 202. Bottom combined pipe; 2021. Retaining ring; 203. Connecting pipe; 2031. Sealing water bag; 2032. Short insert; 2033. Double rotating bolt; 2034. U-shaped push frame; 2035. Semicircular slide; 2036. Horizontal partition; 2037. Semicircular slide; 2038. Water hole; 204. Piston weight ring; 2041. Annular rubber ring; 3. Nozzle. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0021] Please refer to Figures 1 to 8 ; Embodiment 1: The present invention proposes a forestry greening spraying device capable of improving the spraying effect, comprising: a pressure storage tank 1; a tank cover 101 is screwed and sealed on the top opening of the pressure storage tank 1, and a vertically arranged pipe sleeve 102 is formed on the top of the tank cover 101; a nozzle 2 is slidably installed inside the pressure storage tank 1 and the pipe sleeve 102; The nozzle 2 as a whole is composed of an upper combined tube 201, a bottom combined tube 202 and a connecting tube 203, wherein the connecting tube 203 is detachably connected between the upper combined tube 201 and the bottom combined tube 202; a sealing water bag 2031 of an annular structure is glued on the outer side of the circumferential side wall of the connecting tube 203; a piston counterweight ring 204 is formed at the bottom end of the bottom combined tube 202, the central through hole of the piston counterweight ring 204 is connected to the bottom combined tube 202, and an annular rubber ring 2041 is glued and fixed to the top of the piston counterweight ring 204; a horizontal partition 2036 is formed in the middle position of the inner part of the connecting tube 203, and two circles of water holes 2038 are symmetrically opened in the upper and lower parts of the circumferential side wall of the connecting tube 203 near the horizontal partition 2036, and the two circles of water holes 2038 are respectively connected with the upper and lower halves of the internal space of the sealing water bag 2031; Under the impact of the water pressure inside the pressure storage tank 1, the nozzle 2 slides upward as a whole, and the sealing water bag 2031 is expanded and inserted into the pipe sleeve 102. When the sealing water bag 2031 is inserted into the pipe sleeve 102, the outer part is squeezed and sealed with the circumferential inner wall of the pipe sleeve 102; as the nozzle 2 slides upward, the annular rubber ring 2041 abuts against and seals the bottom opening of the pipe sleeve 102; the top of the upper combined pipe 201 is screwed with the nozzle 3; When water enters the pressure storage tank 1 and the pressure is pressed, the piston counterweight ring 204 and the nozzle 2 will be pushed upward by the water pressure inside the pressure storage tank 1, and the nozzle 3 will be driven to extend out of the top part of the pipe sleeve 102 and be exposed for spraying. When the external water supply is disconnected, the water inside the pressure storage tank 1 is cut off and the pressure is lost. The nozzle 2 can slide down and reset by relying on the gravity of the piston counterweight ring 204, and the control pipe sleeve 102 is hidden and retracted in the top part of the pipe sleeve 102. Then, the extension and retraction of the nozzle 2 and the nozzle 3 can be automatically driven by the gravity of the piston counterweight ring 204 and the water supply pressure. This saves the need to configure an additional telescopic lifting and retracting drive device for the nozzle 2 and the nozzle 3 and the need to configure an additional electrical component for automatic start and stop telescopic control for the drive device, which helps to reduce the overall cost of the spraying device. There is a circle of spray holes on the circumferential side wall of the nozzle 3, and the circle of spray holes can spray the irrigation water entering therein in a radial shape. The irrigation water sprayed in the radial shape has a large spray coverage area, and can be used to spray and irrigate a large area of ​​green vegetation, which helps to improve the spray irrigation effect of the spray device.

[0022] In the idle state, the nozzle 3 is hidden and retracted in the top part of the tube sleeve 102, and a circle of spray holes on the outer circumference thereof is blocked by the tube sleeve 102, which can prevent the water pressure inside the pressure storage tank 1 from being quickly sprayed out through a circle of spray holes. The pressure storage tank 1 can maintain sufficient water pressure inside to push the nozzle 2 and the nozzle 3 before the nozzle 2 and the nozzle 3 are pushed out, which helps to ensure the normal and effective implementation of the ejection function of the nozzle 2 and the nozzle 3. The irrigation water entering the pressure storage tank 1 is sequentially conducted into the nozzle 3 through the bottom combined pipe 202, the two circles of water holes 2038 on the connecting pipe 203, the sealed water bag 2031 and the upper combined pipe 201, and is discharged by the nozzle 3 to irrigate the green plants. The two circles of water holes 2038 have a small aperture, which has the effect of intercepting and maintaining the pressure of the irrigation water flow. This will also enable the pressure storage tank 1 to maintain sufficient water pressure to push the nozzle 2 and the nozzle 3 before they are pushed out, which helps to further ensure the normal and effective implementation of the punching and ejecting functions of the nozzle 2 and the nozzle 3; the interception and pressure-maintaining effect of the two circles of water holes 2038 can also ensure that after the nozzle 2 and the nozzle 3 are pushed out, the pressure storage tank 1 maintains sufficient pressure to push the nozzle 2 and the nozzle 3 to keep them in the extended state for spraying and irrigation, which helps to ensure the normal and effective implementation of the spraying and spraying functions of the nozzle 2 and the nozzle 3; When the nozzle 2 is pushed upward, the sealing water bag 2031 is driven to be inserted into the bottom part of the sleeve 102 (refer to Figure 4 ); Through the interception and pressure-maintaining effect of the water holes 2038 on the upper side, the irrigation water inside the pressure storage tank 1 can press and expand the sealing water bag 2031 when passing through the sealing water bag 2031, and the outer part of the expanded sealing water bag 2031 is squeezed and contacted with the circumferential inner wall of the pipe sleeve 102, so as to seal the sliding gap between the nozzle 2 and the pipe sleeve 102; when the piston counterweight ring 204 and the nozzle 2 are pushed upward, the annular rubber ring 2041 is pressed against and sealed on the bottom opening of the pipe sleeve 102, so as to squeeze and seal the bottom annular opening of the above sliding gap, which can form a double seal for the sliding gap in cooperation with the sealing water bag 2031. Compared with the existing technology that simply relies on the annular rubber ring 2041 to seal the sliding gap, it can effectively improve the sealing effect of the sliding gap, avoid a large amount of irrigation water leaking through the sliding gap during long-term use, and greatly reduce the waste and consumption of water resources by the spraying device.

[0023] When the water supply and pressure loss inside the pressure storage tank 1 are cut off, the sealing water bag 2031 loses the expansion and holding force from the water pressure, collapses and separates from the circumferential inner wall of the tube sleeve 102, facilitating the subsequent smooth and unobstructed sliding and contraction of the nozzle 2 and the nozzle 3. Compared with the prior art of directly fitting a rubber sealing plug on the circumferential outer wall of the nozzle 2, double sealing of the above sliding gap can be avoided. The rubber sealing plug can be prevented from being filled in the sliding gap for a long time, statically and rigidly, causing extrusion friction resistance to the sliding and retracting action of the nozzle 2 and the nozzle 3, so that the nozzle 2 and the nozzle 3 cannot automatically slide down and contract normally and effectively by gravity, which helps to ensure the normal and effective implementation of the gravity sliding and contraction function of the nozzle 2 and the nozzle 3.

[0024] Preferably, a vertically arranged double-rotational bolt 2033 is rotatably installed through the center position of the horizontal partition 2036, and two threaded sections on the double-rotational bolt 2033 that are arranged in reverse rotation up and down are symmetrically screwed and installed with two U-shaped push frames 2034; two semicircular sliding strips 2037 are symmetrically protruding from the outer sides of the two vertical side panels of the U-shaped push frame 2034.

[0025] Preferably, two short inserts 2032 are symmetrically formed at the upper and lower ends of the connecting tube 203, and a rubber sealing sleeve is adhesively sleeved on the circumferential outer wall of the short insert 2032; the two short inserts 2032 are respectively plugged and matched with the bottom end of the upper combined tube 201 and the bottom combined tube 202, and the two rubber sealing sleeves are respectively squeezed and sealed with the circumferential inner wall of the bottom end of the upper combined tube 201 and the circumferential inner wall of the bottom combined tube 202; The connecting tube 203 adopts a plug-in detachable connection installation form. After the sealing water bag 2031 is worn and broken, the connecting tube 203 can be directly disassembled and removed as a whole, so that the sealing water bag 2031 can be replaced conveniently and quickly. Compared with the traditional spraying device in which the nozzle 2 is an integrated structure and the sealing water bag 2031 is directly glued and fixed to the nozzle 2 as a whole, when replacing the sealing water bag 2031, it is possible to save the trouble of tearing and disassembling the sealing water bag 2031 to resist the sticky fixing force of the glue and re-glue and fix the replaced sealing water bag 2031 to the nozzle 2, which helps to simplify the replacement and disassembly steps of the sealing water bag 2031 and improve the replacement operation efficiency of the sealing water bag 2031. The connecting tube 203 is connected and fixed to the upper combined tube 201 and the bottom combined tube 202l by the extrusion friction between two rubber sealing sleeves and the circumferential inner wall of the bottom end part of the upper combined tube 201 and the circumferential inner wall of the bottom combined tube 202. When the connecting tube 203 and the sealing water bag 2031 thereon are disassembled and replaced, the upper combined tube 201 and the bottom combined tube 202l need to be pulled out and disassembled from the connecting tube 203.

[0026] Based on the first embodiment, the second embodiment: Preferably, the upper and lower threaded sections of the double-threaded bolt 2033 are respectively located in the two short inserts 2032 , and the two U-shaped push frames 2034 are slidably placed inside the two short inserts 2032 .

[0027] Preferably, two vertically arranged semicircular grooves 2035 are symmetrically provided on the circumferential inner wall of the short insert tube 2032, and the two semicircular slide bars 2037 on each U-shaped push frame 2034 are slidably matched with the two semicircular grooves 2035 on the short insert tube 2032 at the corresponding position.

[0028] Preferably, a retaining ring 2011 is formed in the bottom end portion of the upper combined tube 201, and a retaining ring 2021 is formed in the bottom side portion of the bottom combined tube 202, and the head ends of the two short inserts 2032 are respectively in contact with the retaining ring 2011 and the retaining ring 2021; the inner diameters of the retaining ring 2011 and the retaining ring 2021 are both smaller than the inner diameter of the short insert 2032.

[0029] Preferably, when the two U-shaped push frames 2034 slide away from each other up and down, the head ends of the four vertical side plates on the two U-shaped push frames 2034 respectively abut against the inner ring protrusions of the retaining ring 2011 and the retaining ring 2021; The double-rotation bolt 2033 can be rotated in the forward direction to drive the two U-shaped push frames 2034 to slide upward and downward, thereby synchronously pushing the retaining ring 2011 and the retaining ring 2021 upward and downward, and separating the upper combined tube 201 and the bottom combined tube 202 from the two short inserts 2032 at one time to complete the disassembly of the connecting tube 203. This eliminates the trouble of having to separate the upper combined tube 201 and the bottom combined tube 202 from the short inserts 2032 step by step to complete the disassembly of the connecting tube 203, which helps to simplify the disassembly steps of the connecting tube 203 and the sealing water bag 2031, and further improve the efficiency of disassembly and replacement of the sealing water bag 2031.

[0030] A cross screw slot is provided at the bottom end of the double-rotation bolt 2033. A cross screwdriver is inserted into the bottom assembly pipe 202 and engaged with the cross screw slot, and the double-rotation bolt 2033 can be driven to rotate forward to disassemble the connection pipe 203. It is worth noting that when the connecting pipe 203 and the sealing water bag 2031 are disassembled, assembled or replaced, the tank cover 101 needs to be rotated and loosened to open the nozzle 2 so as to be pulled out of the pressure storage tank 1 and exposed.

[0031] Preferably, a limit ring 1021 is formed in the top portion of the pipe sleeve 102. In the idle state, the nozzle 3 slides down and is hidden in the top portion of the pipe sleeve 102, and the bottom end is in contact with the limit ring 1021; the piston counterweight ring 204 is slidably located inside the pressure storage tank 1, and a small sliding gap is maintained between the piston counterweight ring 204 and the circumferential inner wall of the pressure storage tank 1; an L-shaped water inlet pipe 103 is fixedly connected to the bottom of the bottom plate of the pressure storage tank 1.

[0032] The working principle of this embodiment is as follows: when in use, the spray device is buried underground as a whole, but the top of the pipe sleeve 102 and the nozzle 3 should be exposed to the ground and flush with the ground, and the L-shaped water inlet pipe 103 is connected to the pressurized water supply pipeline buried underground, and the L-shaped water inlet pipe 103 is used to fill the pressure storage tank 1 with water; When water enters the pressure storage tank 1 and the pressure is pressed, the piston counterweight ring 204 and the nozzle 2 will be pushed upward by the water pressure inside the pressure storage tank 1, and the nozzle 3 will be driven to extend out of the top part of the pipe sleeve 102 and be exposed for spraying. When the external water supply is disconnected, the pressure storage tank 1 is depressurized and the nozzle 2 can slide down and reset by the gravity of the piston counterweight ring 204 and the control pipe sleeve 102, and hide and shrink in the top part of the pipe sleeve 102; the irrigation water inside the pressure storage tank 1 is successively conducted into the nozzle 3 through the bottom combined pipe 202, the two circles of water holes 2038 on the connecting pipe 203, the sealed water bag 2031 and the upper combined pipe 201, and discharged by the nozzle 3 to irrigate the green plants; When the nozzle 2 is pushed upward, the sealing water bag 2031 is driven to be inserted into the bottom part of the sleeve 102 (refer to Figure 4 ); Through the interception and pressure-maintaining effect of the water holes 2038 on the upper side, the irrigation water inside the pressure storage tank 1 can press and expand the sealed water bag 2031 when passing through the sealed water bag 2031, and the outer part of the expanded sealed water bag 2031 is squeezed and contacted with the circumferential inner wall of the pipe sleeve 102, so as to seal the sliding gap between the nozzle 2 and the pipe sleeve 102; when the piston weight ring 204 and the nozzle 2 are pushed upward, the annular rubber ring 2041 is pressed and sealed on the bottom opening of the pipe sleeve 102, so as to squeeze and seal the bottom annular opening of the above sliding gap, which cooperates with the sealed water bag 2031 to form a double seal for the sliding gap; The connecting tube 203 adopts a plug-in detachable connection installation form. After the sealing water bag 2031 is worn and broken, the connecting tube 203 can be directly disassembled and removed as a whole, so that the sealing water bag 2031 can be replaced conveniently and quickly; the connecting tube 203 is connected and fixed to the upper combined tube 201 and the bottom combined tube 202l through the squeezing friction between the two rubber sealing sleeves and the circumferential inner wall of the bottom end part of the upper combined tube 201 and the circumferential inner wall of the bottom combined tube 202. When the connecting tube 203 and the sealing water bag 2031 thereon are disassembled and replaced, the upper combined tube 201 and the bottom combined tube 202l need to be connected to the connecting tube 203 is pulled out and disassembled; the double-rotation bolt 2033 can be rotated forward to drive the two U-shaped push frames 2034 to slide upward and downward, and the retaining ring 2011 and the retaining ring 2021 are pushed upward and downward synchronously, and the upper assembly pipe 201 and the bottom assembly pipe 202 are pulled out and separated from the two short inserts 2032 at one time, and the disassembly of the connecting pipe 203 is completed; the bottom end of the double-rotation bolt 2033 is provided with a cross screw groove, and a cross screwdriver is inserted into the bottom assembly pipe 202 and plugged into the cross screw groove, so that the double-rotation bolt 2033 can be driven to rotate forward, and the connecting pipe 203 is disassembled; Note: When disassembling and replacing the connecting pipe 203 and the sealing water bag 2031, the tank cover 101 needs to be rotated to loosen and open, and the nozzle 2 is pulled out of the pressure storage tank 1 as a whole to expose it.

[0033] In this article, there are a few points to note: 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0034] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A forestry greening spraying device capable of improving the spraying effect, comprising: A pressure storage tank (1); a tank cover (101) is screwed and sealed on the top opening of the pressure storage tank (1), and a pipe sleeve (102) arranged vertically is formed on the top of the tank cover (101); a nozzle (2) is slidably mounted inside the pressure storage tank (1) and the pipe sleeve (102); The invention is characterized in that the nozzle (2) as a whole is composed of an upper combined tube (201), a bottom combined tube (202) and a connecting tube (203), wherein the connecting tube (203) is detachably connected between the upper combined tube (201) and the bottom combined tube (202); a sealing water bag (2031) of an annular structure is adhesively sleeved on the outer side of the circumferential side wall of the connecting tube (203); a piston counterweight ring (204) is formed at the bottom end of the bottom combined tube (202), and the middle of the piston counterweight ring (204) is The central through hole is connected to the bottom assembly tube (202), and an annular rubber ring (2041) is glued and fixed to the top of the piston counterweight ring (204); a horizontal baffle (2036) is formed and arranged in the middle position inside the connecting tube (203), and two circles of water holes (2038) are symmetrically opened through the upper and lower parts of the circumferential side wall of the connecting tube (203) close to the horizontal baffle (2036), and the two circles of water holes (2038) are respectively connected to the upper and lower halves of the internal space of the sealed water bag (231); Under the impact of the water pressure inside the pressure storage tank (1), the nozzle (2) as a whole slides upward, and the sealing water bag (2031) is expanded and slidably inserted into the tube sleeve (102). When the sealing water bag (2031) is slidably inserted into the tube sleeve (102), the outer portion is squeezed and sealed with the circumferential inner wall of the tube sleeve (102); as the nozzle (2) slides upward, the annular rubber ring (2041) abuts against and seals the bottom opening of the tube sleeve (102).

2. A forestry greening spraying device capable of improving the spraying effect according to claim 1, characterized in that: A vertically arranged double-rotation bolt (2033) is rotatably installed through the center of the horizontal partition (2036); two U-shaped push frames (2034) are symmetrically screwed and installed on two threaded sections of the double-rotation bolt (2033) that are arranged in up and down counter-rotation directions; Two semicircular sliding strips (2037) are symmetrically protruded from the outer sides of the two vertical side plates of the U-shaped push frame (2034).

3. A forestry greening spraying device capable of improving the spraying effect according to claim 2, characterized in that: Two short inserts (2032) are symmetrically formed at the upper and lower ends of the connecting pipe (203), and a rubber sealing sleeve is adhesively sleeved on the circumferential outer wall of the short inserts (2032); The two short inserts (2032) are respectively plugged into the bottom end portion of the upper assembly tube (201) and the bottom assembly tube (202), and the two rubber sealing sleeves are respectively squeezed and sealed with the circumferential inner wall of the bottom end portion of the upper assembly tube (201) and the circumferential inner wall of the bottom assembly tube (202).

4. A forestry greening spraying device capable of improving the spraying effect according to claim 3, characterized in that: The upper and lower threaded sections of the double-rotation bolt (2033) are respectively located in the two short inserts (2032), and the two U-shaped push frames (2034) are respectively slidably placed inside the two short inserts (2032).

5. A forestry greening spraying device capable of improving the spraying effect according to claim 4, characterized in that: Two semicircular slide grooves (2035) are symmetrically arranged vertically on the circumferential inner wall of the short insert tube (2032), and the two semicircular slide strips (2037) on each U-shaped push frame (2034) are slidably matched with the two semicircular slide grooves (2035) on the short insert tube (2032) at the corresponding position.

6. The forestry greening spraying device capable of improving the spraying effect according to claim 3, characterized in that: A retaining ring (2011) is formed in the bottom end portion of the upper combined tube (201), and a retaining ring (2021) is formed in the bottom side portion of the bottom combined tube (202), and the head ends of the two short inserts (2032) are in abutment contact with the retaining ring (2011) and the retaining ring (2021), respectively; The inner diameters of the retaining ring (2011) and the retaining ring (2021) are both smaller than the inner diameter of the short insert (2032).

7. A forestry greening spraying device capable of improving the spraying effect according to claim 6, characterized in that: When the two U-shaped push frames (2034) slide away from each other up and down, the head ends of the four vertical side plates on the two U-shaped push frames (2034) respectively abut against the inner ring protrusions of the retaining ring (211) and the retaining ring (221).

8. The forestry greening spraying device capable of improving the spraying effect according to claim 1, characterized in that: A spray head (3) is screwed and mounted on the top end of the upper combined pipe (201); A limiting ring (1021) is formed in the top portion of the tube sleeve (102), and in an idle state, the nozzle (3) slides down and is hidden in the top portion of the tube sleeve (102), and the bottom end is in contact with the limiting ring (1021); The piston counterweight ring (204) is slidably located inside the pressure storage tank (1), and a small sliding gap is maintained between the piston counterweight ring (204) and the circumferential inner wall of the pressure storage tank (1); An L-shaped water inlet pipe (103) is fixedly connected to the bottom of the bottom plate of the pressure storage tank (1).

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