Road greening irrigation spraying device

By designing an adjustable-angle sprinkler head and a motor-driven rotating structure for road greening irrigation sprinkler devices, the problems of low irrigation efficiency and operational negligence caused by the inability to adjust the sprinkler angle have been solved, thus improving irrigation efficiency and effectiveness.

CN223568324UActive Publication Date: 2025-11-21TIANJIN XINRAN MUNICIPAL ENG CO LTD
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Patent Information

Application Number
CN202423197553.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-11-21
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

The nozzles of existing greening irrigation sprinkler systems cannot be adjusted in angle, resulting in low irrigation efficiency and easy operator negligence, leading to poor performance.

Method used

A road greening irrigation sprinkler device was designed, comprising a base block, a swing assembly, a push rod, a mixing assembly, a spraying assembly, and a moving assembly. Through an adjustable-angle nozzle and a motor-driven rotating structure, the spraying effect can be adjusted by swinging, enhancing the practical value of the device.

Benefits of technology

The adjustable spray angle improves irrigation efficiency, reduces operator negligence, and enhances the practicality and effectiveness of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of greening irrigation spraying, in particular to a road greening irrigation spraying device which comprises a bottom block, a swing assembly, a push rod, a stirring assembly, a spraying assembly and a moving assembly. The upper end face of the bottom block is provided with a stirring assembly and a spraying assembly, one side of the bottom block is provided with a push rod, and the bottom of the bottom block is provided with a moving assembly; the swing assembly comprises a first support, a first rotating disc, a first rotating rod, a transverse rod, a rotating connecting support, a connecting rod, a fixing block, a second support, a first motor, a second rotating rod, a connecting piece, a hole channel, a containing groove, a connecting pipe and a spray head. The upper end face of the bottom block is provided with a first support, a first rotating disc, a first rotating rod, a transverse rod, a rotating connecting support, a connecting rod, a fixing block, a second support, a first motor, a second rotating rod, a connecting piece, a hole channel, a containing groove, a spray head and a connecting pipe. According to the device, the angle can be adjusted, so that the high efficiency of irrigation and spraying is guaranteed, and the practical value of the device is enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to afforesting irrigation sprinkling technical field especially relates to road afforesting irrigation sprinkling device. BACKGROUND

[0002] In the process of road afforesting irrigation sprinkling operation, road afforestation is usually easy to lack water under outdoor environment, and the afforestation of road afforestation is completed through fixed nozzle or artificial hand-held process, and in the process, the spraying device is needed to spray to guarantee the normal and orderly development of subsequent operation.

[0003] Most of the present afforesting irrigation sprinkling devices use fixed nozzle or artificial hand-held to carry out afforesting irrigation sprinkling operation, when using, the fixed nozzle cannot adjust the angle, leading to the low efficiency of afforesting irrigation sprinkling, and the personnel operation is easy to cause negligence, and the use effect is poor.

[0004] Therefore, aiming at the situation that the nozzle of the existing afforesting irrigation sprinkling device cannot adjust the angle, the efficiency is low, and the personnel operation is easy to be negligent, a road afforesting irrigation sprinkling device can be designed, the device adjusts the angle size, guarantees the efficiency of road afforesting irrigation sprinkling operation, and enhances the practical value of the device. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the problem that most road afforesting irrigation sprinkling devices use fixed nozzle, which cannot adjust the angle, leading to the low efficiency of afforesting irrigation sprinkling, and the personnel operation is easy to cause negligence, and the use effect is poor.

[0006] The utility model discloses a technical scheme for a road greening irrigation spraying device, comprising a bottom block, a swing assembly, a push rod, a stirring assembly, a spraying assembly and a moving assembly. The upper end surface of the bottom block is provided with the stirring assembly, one side of the bottom block is provided with the push rod, the bottom of the bottom block is provided with the moving assembly, one side of the stirring assembly is provided with the spraying assembly, the upper end surface of the bottom block is provided with the swing assembly, and the swing assembly comprises a first support, a first rotary disc, a first rotary rod, a crossbar, a rotary connecting bracket, a connecting rod, a fixing block, a second support, a first motor, a second rotary rod, a connecting piece, a hole, a placing groove, a connecting pipe and a spray head. The upper end surface of the bottom block is threadedly connected with the first support, the upper end surface of the first support is provided with the first rotary disc, the first rotary disc is rotationally connected with the first rotary rod, the outer side of the first rotary rod is provided with the crossbar, the outer side of the crossbar is rotationally connected with the rotary connecting bracket, one side of the rotary connecting bracket is provided with the connecting rod, one side of the connecting rod is threadedly connected with the fixing block, the upper end surface of the bottom block is threadedly connected with the second support, the inside of the second support is provided with the first motor, the output end of the first motor is connected with the second rotary rod, one side of the second rotary rod is threadedly connected with the connecting piece, the connecting piece is provided with the hole, the hole is provided with multiple groups, the connecting piece is provided with the placing groove, the upper end surface of the first rotary rod is provided with the spray head, and one side of the spray head is provided with the connecting pipe.

[0007] Preferably, the moving assembly is installed at the bottom of the bottom block, the push rod is fixedly installed at one side of the bottom block, the stirring assembly is fixedly installed at the upper end surface of the bottom block, the spraying assembly is fixedly installed at one side of the stirring assembly, the first support is threadedly connected with the upper end surface of the bottom block, the first rotary disc is fixedly installed at the upper end surface of the first support, the first rotary rod is rotationally connected with the first rotary disc, the crossbar is fixedly installed at the outer side of the first rotary rod, the rotary connecting bracket is fixedly installed at the outer side of the crossbar, the connecting rod is fixedly installed at one side of the rotary connecting bracket, the second support is threadedly connected with the upper end surface of the bottom block, the first motor is fixedly installed at the inside of the second support, the output end of the first motor is connected with the second rotary rod, the connecting piece is threadedly connected with the second rotary rod, the hole and the placing groove are provided in the connecting piece, the spray head is fixedly installed at the upper end surface of the first rotary rod, the connecting pipe is installed at one side of the spray head, and the fixing block is threadedly connected with the connecting rod through the hole. Thus, the output of the first motor drives the rotation of the second rotary rod, the rotation of the second rotary rod drives the rotation of the connecting piece, the rotation of the connecting piece drives the rotation of the rotary connecting bracket, the rotation of the rotary connecting bracket drives the rotation of the first rotary rod, the hole and the fixing block cooperate to ensure the swing amplitude, the adjustable swing spraying effect is realized, and the practical value of the device is enhanced.

[0008] As preferred, the stirring assembly comprises a water tank, a water inlet, a cover, a second motor, a third rotating rod, a sealing ring, a second rotating disc, a first stirring rod and a second stirring rod; the second motor is arranged in the bottom block, the output end of the second motor is connected with the third rotating rod, the outer side of the third rotating rod is provided with the sealing ring, the upper end surface of the third rotating rod is provided with the second rotating disc, the outer side of the second rotating disc is provided with the first stirring rod, the first stirring rod is provided with multiple groups, the upper end surface of the first stirring rod is provided with the second stirring rod, and the second stirring rod is provided with multiple groups.

[0009] As preferred, the upper end surface of the bottom block is provided with the water tank, the upper end surface of the water tank is provided with the water inlet, and the outer side of the water inlet is threadedly connected with the inner side of the cover.

[0010] As preferred, the spraying assembly comprises a first connecting block, a clamping groove, a hose, a second connecting block, a water outlet pipe, a water pump and a water delivery pipe; the water outlet pipe is connected with one side of the bottom block, the output end of the water pump is connected with one side of the water outlet pipe, and one side of the water pump is connected with the water delivery pipe.

[0011] As preferred, one side of the water tank is provided with the first connecting block, the first connecting block is provided with the clamping groove, the clamping groove is provided with two groups, the inner side of the clamping groove is provided with the hose, the upper end surface of the hose is provided with the second connecting block, the second connecting block is provided with two groups, and one side of the water delivery pipe and one side of the connecting pipe are connected with the second connecting block.

[0012] As preferred, the moving assembly comprises a groove, a bearing plate, a spring damper, a booster and a pulley; the bottom block is provided with the groove, the inner side of the groove is provided with the spring damper, and the spring damper is provided with multiple groups.

[0013] As preferred, the bottom of the spring damper is provided with the bearing plate, the bottom of the bearing plate is provided with the booster, the booster is provided with two groups, one side of the booster is provided with the pulley, and the pulley is provided with multiple groups.

[0014] The utility model discloses beneficial effects:

[0015] 1. A first support is threaded onto the upper end face of the base block. A first rotating disk is fixedly installed on the upper end face of the first support. A first rotating rod is rotatably connected to the first rotating disk. A crossbar is fixedly installed on the outer side of the first rotating rod. A rotating connecting bracket is fixedly installed on the outer side of the crossbar. A connecting rod is fixedly installed on one side of the rotating connecting bracket. A second bracket is threaded onto the upper end face of the base block. A first motor is fixedly installed inside the second bracket. The output end of the first motor is connected to the second rotating rod. A connecting piece with a channel and a placement groove is threaded onto the second rotating rod. A nozzle is fixedly installed on the upper end face of the first rotating rod. A connecting pipe is installed on one side of the nozzle. A fixing block is threaded onto the connecting rod through the channel. This ensures that the output of the first motor drives the second rotating rod to rotate. The rotation of the second rotating rod drives the connecting piece to rotate. The rotation of the connecting piece drives the rotating connecting bracket to rotate. The rotation of the rotating connecting bracket drives the first rotating rod to rotate. The channel and the fixing block work together to ensure the swing amplitude, thereby achieving an adjustable swing spraying effect and enhancing the practical value of the device. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the road greening irrigation sprinkler device of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the swing component of the road greening irrigation sprinkler device of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the connecting piece of the road greening irrigation sprinkler device of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the mixing component of the road greening irrigation sprinkler device of this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the spraying component of the road greening irrigation sprinkler device of this utility model;

[0021] Figure 6 The diagram shown is a three-dimensional structural schematic of the movable component of the road greening irrigation sprinkler device of this utility model;

[0022] Figure 7 The diagram shown is a three-dimensional structural schematic of the spring damper of the road greening irrigation sprinkler device of this utility model.

[0023] Explanation of reference signs: 1, bottom block; 2, push rod; 101, first support; 102, first rotating disc; 103, first rotating rod; 104, cross rod; 105, rotating connecting support; 106, connecting rod; 107, fixed block; 108, second support; 109, first motor; 110, second rotating rod; 111, connecting piece; 112, hole; 113, placing groove; 114, connecting pipe; 115, spray head; 201, water tank; 202, water inlet; 203, cover; 204, second motor; 205, third rotating rod; 206, sealing ring; 207, second rotating disc; 208, first stirring rod; 209, second stirring rod; 301, first connecting block; 302, clamping groove; 303, hose; 304, second connecting block; 305, water outlet pipe; 306, water pump; 307, water delivery pipe; 401, groove; 402, bearing plate; 403, spring damper; 404, booster; 405, pulley. DETAILED DESCRIPTION

[0024] The utility model is further explained in connection with the drawings and examples.

[0025] Please refer to Figures 1-7 The utility model provides a kind of embodiment: road afforestation irrigation sprinkling device, including bottom block 1, swing assembly, push rod 2, stirring assembly, spraying assembly and mobile assembly;The upper end surface of bottom block 1 is provided with stirring assembly, one side of bottom block 1 is provided with push rod 2, the bottom of bottom block 1 is provided with mobile assembly, one side of stirring assembly is provided with spraying assembly, the upper end surface of bottom block 1 is provided with swing assembly, swing assembly includes first support 101, first rotating disc 102, first rotating rod 103, cross rod 104, rotating connecting support 105, connecting rod 106, fixed block 107, second support 108, first motor 109, second rotating rod 110, connecting piece 111, hole 112, placing groove 113, connecting pipe 114 and spray head 115;The upper end surface of bottom block 1 is threadedly connected first support 101, the upper end surface of first support 101 is provided with first rotating disc 102, first rotating disc 102 is rotatably connected with first rotating rod 103, the outer side of first rotating rod 103 is provided with cross rod 104, the outer side of cross rod 104 is rotatably connected with rotating connecting support 105, one side of rotating connecting support 105 is provided with connecting rod 106, one side of connecting rod 106 is threadedly connected with fixed block 107, the upper end surface of bottom block 1 is threadedly connected with second support 108, the inside of second support 108 is provided with first motor 109, the output end of first motor 109 is connected with second rotating rod 110, one side of second rotating rod 110 is threadedly connected with connecting piece 111, connecting piece 111 is provided with hole 112, hole 112 is provided with multiple groups, connecting piece 111 is provided with placing groove 113, the upper end surface of first rotating rod 103 is provided with spray head 115, one side of spray head 115 is provided with connecting pipe 114.

[0026] Please refer to Figures 2-5 In the embodiment, the stirring assembly comprises a water tank 201, a water inlet 202, a cover 203, a second motor 204, a third rotating rod 205, a sealing ring 206, a second rotating disc 207, a first stirring rod 208 and a second stirring rod 209. The second motor 204 is arranged in the bottom block 1. The output end of the second motor 204 is connected with the third rotating rod 205. The outer side of the third rotating rod 205 is provided with the sealing ring 206. The upper end surface of the third rotating rod 205 is provided with the second rotating disc 207. The outer side of the second rotating disc 207 is provided with the first stirring rod 208. The first stirring rod 208 is provided with multiple groups. The upper end surface of the first stirring rod 208 is provided with the second stirring rod 209. The second stirring rod 209 is provided with multiple groups. The second motor 204 drives the third rotating rod 205 to rotate. The third rotating rod 205 drives the second rotating disc 207, the first stirring rod 208 and the second stirring rod 209 to rotate, so as to guarantee the stirring effect. The sealing ring 206 guarantees the sealing effect. The upper end surface of the bottom block 1 is provided with the water tank 201. The upper end surface of the water tank 201 is provided with the water inlet 202. The outer side of the water inlet 202 is threadedly connected with the inner side of the cover 203. The cover 203 is opened by rotation. The water inlet 202 is used to inject water or nutrient solution, so as to guarantee the normal and orderly development of subsequent work. The spraying assembly comprises a first connecting block 301, a clamping groove 302, a hose 303, a second connecting block 304, a water outlet pipe 305, a water pump 306 and a water delivery pipe 307. The water outlet pipe 305 is connected with one side of the bottom block 1. The output end of the water pump 306 is connected with one side of the water outlet pipe 305. One side of the water pump 306 is connected with the water delivery pipe 307. The water outlet pipe 305 and the water delivery pipe 307 are used to cooperate with spraying through the output of the water pump 306, so as to guarantee the normal and orderly development of subsequent work. One side of the water tank 201 is provided with the first connecting block 301. The first connecting block 301 is provided with two groups of clamping grooves 302. The inner side of the clamping groove 302 is provided with the hose 303. The upper end surface of the hose 303 is provided with the second connecting block 304. The second connecting block 304 is provided with two groups. One side of the second connecting block 304 is connected with one side of the water delivery pipe 307 and one side of the connecting pipe 114. The hose 303 is clamped and supported through the clamping groove 302. The second connecting block 304 is used to realize the connection of one side of the connecting pipe 114 and one side of the water delivery pipe 307, so as to guarantee the storage and external connection effect.

[0027] Please refer to Figures 6-7In the embodiment, the moving assembly includes a groove 401, a bearing plate 402, a spring damper 403, a booster 404 and a pulley 405; the bottom block 1 is provided with the groove 401, the inside of the groove 401 is provided with the spring damper 403, the spring damper 403 is provided with multiple groups; through the characteristics of the spring damper 403, the damping effect during subsequent movement is ensured; the bottom of the spring damper 403 is provided with the bearing plate 402, the bottom of the bearing plate 402 is provided with the booster 404, the booster 404 is provided with two groups, one side of the booster 404 is provided with the pulley 405, and the pulley 405 is provided with multiple groups; the booster 404 is used for electric power assistance of the pulley 405, so that the labor-saving effect during movement is ensured.

[0028] When the water tank 201 is installed, the water inlet 202 is fixed to the upper end face of the water tank 201, the cover 203 is threadedly connected to the outside of the water inlet 202, the second motor 204 is fixed to the inside of the bottom block 1, the third rotating rod 205 is connected with the output end of the second motor 204, the third rotating rod 205 penetrates through the water tank 201, the sealing ring 206 is fixed to the outside of the third rotating rod 205, the sealing ring 206 seals the water tank 201 and the third rotating rod 205, the second rotating disc 207 is fixed to the upper end face of the third rotating rod 205, the first stirring rod 208 is fixed to the outside of the second rotating disc 207, and the second stirring rod 209 is fixed to the upper end face of the first stirring rod 208, so that the stirring and water injection effects during special spraying are ensured.

[0029] When the first connecting block 301 is installed, the first connecting block 301 is fixed to one side of the water tank 201, the first connecting block 301 is provided with a clamping groove 302, the hose 303 is clamped and connected to the inner wall of the clamping groove 302, the second connecting block 304 is fixed to one side of the hose 303, the water outlet pipe 305 is connected through the water tank 201, one side of the water outlet pipe 305 is connected with the output end of the water pump 306, and the water conveying pipe 307 is fixed to one side of the water pump 306, so that the clamping groove 302 supports and fixes the hose 303, the second connecting block 304 is used for connecting the water conveying pipe 307 and the connecting pipe 114, and the spraying effect is achieved.

[0030] When moving, the spring damper 403 is fixedly installed in the groove 401, the bearing plate 402 is fixedly installed at the bottom of the spring damper 403, the booster 404 is fixedly installed at the bottom of the bearing plate 402, the pulley 405 is fixedly installed on one side of the booster 404, so that when the push rod 2 is pushed, the booster 404 is used for power assistance, and the spring damper 403 is used for damping effect, so that the moving effect is ensured, and the practical value of the device is enhanced.

[0031] Through the above steps, the moving assembly is installed through the bottom of the bottom block 1, the push rod 2 is fixedly installed on one side of the bottom block 1, the stirring assembly is fixedly installed on the upper end face of the bottom block 1, the spraying assembly is fixedly installed on one side of the stirring assembly, the first support 101 is threadedly connected to the upper end face of the bottom block 1, the first rotating disc 102 is fixedly installed on the upper end face of the first support 101, the first rotating rod 103 is rotatably connected to the first rotating disc 102, the cross rod 104 is fixedly installed on the outer side of the first rotating rod 103, the rotary connecting bracket 105 is fixedly installed on the outer side of the cross rod 104, the connecting rod 106 is fixedly installed on one side of the rotary connecting bracket 105, the second support 108 is threadedly connected to the upper end face of the bottom block 1, the first motor 109 is fixedly installed in the second support 108, the output end of the first motor 109 is connected to the second rotating rod 110, the connecting plate 111 is threadedly connected to the second rotating rod 110, the connecting plate 111 is provided with the hole 112 and the placing groove 113, the spray head 115 is fixedly installed on the upper end face of the first rotating rod 103, the connecting pipe 114 is installed on one side of the spray head 115, and the connecting rod 106 is threadedly connected to the fixed block 107 through the hole 112, so that the first motor 109 drives the second rotating rod 110 to rotate, the second rotating rod 110 drives the connecting plate 111 to rotate, the connecting plate 111 drives the rotary connecting bracket 105 to rotate, the rotary connecting bracket 105 drives the first rotating rod 103 to rotate, and the hole 112 and the fixed block 107 cooperate to guarantee the swing range, so that the adjustable swing spraying effect is realized, and the practical value of the device is enhanced.

[0032] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A road greenery irrigation sprinkling device comprising a bottom block (1); characterized in that: Also include swing assembly, push rod (2), stirring assembly, spraying assembly and moving assembly; the upper end surface of the bottom block (1) is provided with the stirring assembly, one side of the bottom block (1) is provided with the push rod (2), the bottom of the bottom block (1) is provided with the moving assembly, one side of the stirring assembly is provided with the spraying assembly, the upper end surface of the bottom block (1) is provided with the swing assembly, the swing assembly includes first support (101), first rotary disc (102), first rotary rod (103), crossbar (104), rotary connecting bracket (105), connecting rod (106), fixed block (107), second bracket (108), first motor (109), second rotary rod (110), connecting piece (111), hole (112), placing groove (113), connecting pipe (114) and spray head (115); the upper end surface of the bottom block (1) is threadedly connected with the first support (101), the upper end surface of the first support (101) is provided with the first rotary disc (102), the first rotary disc (102) is rotatably connected with the first rotary rod (103), the outer side of the first rotary rod (103) is provided with the crossbar (104), the outer side of the crossbar (104) is rotatably connected with the rotary connecting bracket (105), one side of the rotary connecting bracket (105) is provided with the connecting rod (106), one side of the connecting rod (106) is threadedly connected with the fixed block (107), the upper end surface of the bottom block (1) is threadedly connected with the second bracket (108), the inside of the second bracket (108) is provided with the first motor (109), the output end of the first motor (109) is connected with the second rotary rod (110), one side of the second rotary rod (110) is threadedly connected with the connecting piece (111), the connecting piece (111) is provided with the hole (112), a plurality of groups of holes (112) are provided, the connecting piece (111) is provided with the placing groove (113), the upper end surface of the first rotary rod (103) is provided with the spray head (115), one side of the spray head (115) is provided with the connecting pipe (114).

2. A road-planting irrigation sprinkling device according to claim 1, characterized in that: The stirring assembly includes water tank (201), water inlet (202), cover (203), second motor (204), third rotary rod (205), sealing ring (206), second rotary disc (207), first stirring rod (208) and second stirring rod (209); the inside of the bottom block (1) is provided with the second motor (204), the output end of the second motor (204) is connected with the third rotary rod (205), the outer side of the third rotary rod (205) is provided with the sealing ring (206), the upper end surface of the third rotary rod (205) is provided with the second rotary disc (207), the outer side of the second rotary disc (207) is provided with the first stirring rod (208), a plurality of groups of first stirring rods (208) are provided, the upper end surface of the first stirring rod (208) is provided with the second stirring rod (209), a plurality of groups of second stirring rods (209) are provided.

3. A road-planting irrigation sprinkling device according to claim 2, characterized in that: The upper end surface of the bottom block (1) is provided with the water tank (201), the upper end surface of the water tank (201) is provided with the water inlet (202), the outer side of the water inlet (202) is threadedly connected with the inner side of the cover (203).

4. The road-vegetation-irrigation sprinkling device, as claimed in claim 2, wherein: The spraying assembly comprises a first connecting block (301), a clamping groove (302), a hose (303), a second connecting block (304), a water outlet pipe (305), a water pump (306) and a water delivery pipe (307); one side of the bottom block (1) is connected with the water outlet pipe (305) in penetration, one side of the water outlet pipe (305) is connected with the output end of the water pump (306), and one side of the water pump (306) is connected with the water delivery pipe (307).

5. A road-planting irrigation sprinkling device according to claim 4, characterized in that: The water tank (201) is provided with the first connecting block (301) on one side, the first connecting block (301) is provided with the clamping groove (302), the clamping groove (302) is provided with two groups, the inside of the clamping groove (302) is provided with the hose (303), the upper end surface of the hose (303) is provided with the second connecting block (304), the second connecting block (304) is provided with two groups, and one side of the water delivery pipe (307) and one side of the connecting pipe (114) are connected with the second connecting block (304).

6. The road-vegetation-irrigation sprinkling device, as claimed in claim 1, wherein: The moving assembly comprises a groove (401), a bearing plate (402), a spring damper (403), a booster (404) and a pulley (405); the bottom block (1) is provided with the groove (401), the inside of the groove (401) is provided with the spring damper (403), and the spring damper (403) is provided with multiple groups.

7. A road-planting irrigation sprinkling device according to claim 6, characterized in that: The bottom of the spring damper (403) is provided with the bearing plate (402), the bottom of the bearing plate (402) is provided with the booster (404), the booster (404) is provided with two groups, one side of the booster (404) is provided with the pulley (405), and the pulley (405) is provided with multiple groups.