A high-pressure water rotary flushing device for sweeper trucks
By designing the upturn mechanism, protective device and front baffle adjustment mechanism in the sweeper high-pressure water rotary flushing device, the problems of blockage of the rotary nozzle, easy damage to the rotary nozzle, and unadjustable front baffle height are solved, and efficient cleaning and preventing comb water marks on the ground.
Patent Information
- Application Number
- CN202111021242.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-09-01
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2041-09-01
AI Technical Summary
During use, the existing high-pressure jet cleaning device of sweepers has problems such as blockage of rotating nozzles and difficult to clean, the rotating nozzle is easily damaged, the front baffle height is unadjustable, resulting in incomplete cleaning and comb water marks on the ground.
A high-pressure water rotary flushing device for washing and sweeping vehicles is designed, including a flip-up mechanism, a protective device and a front baffle adjustment mechanism. The upturn mechanism realizes rapid cleaning of the rotating nozzle through the flip hole and the upturn mechanism. The protective device protects the rotating nozzle and the nozzle through the protective partition and the rotating jet hole of the integrated structure. The front baffle adjusting mechanism adjusts the front baffle height from the ground through the front baffle drive device.
It realizes rapid cleaning of rotating nozzles, reduces the risk of damage to rotating nozzles, ensures the normal use of the flushing function, ensures the thorough cleaning of garbage and avoids comb water marks on the ground.
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Figure CN113605295B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of environmental protection machinery, and in particular to a high-pressure water rotary flushing device for a washing and sweeping vehicle. Background Art
[0002] With the rapid development of public infrastructure and the increasing demand for environmental protection, road sweepers with high-pressure jet cleaning devices are increasingly used in the cleaning and maintenance of urban roads, park squares, community streets and other roads. However, for the high-pressure jet cleaning devices of existing sweepers on the sanitation market, there are basically the following shortcomings during use: When the rotating nozzle of the rotating spray rod mechanism is blocked during operation, the driver needs to find a ditch and park the sweeper on it, and then remove the rotating nozzle from the bottom of the vehicle for cleaning. This process is time-consuming and labor-intensive, affecting work efficiency. ; If the rotating spray rod of the rotating spray rod mechanism is not protected or the protection is insufficient, the rotating spray rod or nozzle can easily be impacted and worn by hard objects such as sand and gravel particles, or be entangled by foreign objects such as plastic bags and ropes, and even damaged, affecting the normal use of the flushing function; the height of the front baffle of the flushing device suction nozzle body from the ground cannot be adjusted according to the garbage situation on the road surface, which will cause slightly larger garbage to be missed and accumulated outside the cleaning device, resulting in incomplete cleaning; the single-row rotating water spray arrangement can easily cause comb water marks to appear on the ground after the vehicle is washed and swept, affecting the cleaning effect. Summary of the invention
[0003] In view of the problems mentioned in the above background technology, the present invention provides a high-pressure water rotary flushing device for a washing and sweeping vehicle. The high-pressure water rotary flushing device for a washing and sweeping vehicle has the characteristics of convenient cleaning of a rotary nozzle, improved work efficiency, reduced risk of damage to the rotary spray rod mechanism during operation, and ensured normal use of the rotary flushing function. The height of the front baffle from the ground can be adjusted in real time according to the garbage situation on the road surface, and the comb water marks left by the rotary spraying can be reduced and avoided.
[0004] In order to solve the above technical problems, the technical solution of the present invention is: the high-pressure water rotary flushing device of the washing and sweeping vehicle comprises an outer cover body, on which a plurality of rotating spray rod mechanisms are arranged, the outer cover body comprises a rotating spray rod outer cover, on which flip holes corresponding to each rotating spray rod mechanism are arranged respectively, each of the flip holes is respectively provided with an upward flipping mechanism, each of the rotating spray rod mechanisms is respectively arranged on the corresponding upward flipping mechanism, a protective device is arranged on the outer cover body below the rotating spray rod mechanism, and a front baffle adjustment mechanism is arranged at the front end of the rotating spray rod outer cover.
[0005] As a preferred technical solution, the rotary spray bar mechanisms are arranged in at least two rows front and back, and each row has at least two rotary spray bar mechanisms, and the rotary spray bar mechanisms in two adjacent rows are arranged in an interlaced manner. The rotary spray bar mechanisms can be arranged in two, three, four or more rows, and each row of rotary spray bar mechanisms can also have two, three, four or five or more. However, according to the actual working needs and installation structure requirements of the current washing and sweeping vehicle, it is preferred to use two rows of rotary spray bar mechanisms, that is, three rotary spray bar mechanisms in the front row and two rotary spray bar mechanisms in the back row, so as to achieve effective overlap of the sprayed water curtain and avoid comb water marks on the ground.
[0006] As a preferred technical solution, the upward flipping mechanism includes a flap hinged on the rotating spray bar outer cover at the flip hole, and the rotating spray bar outer cover is provided with a pressing device for pressing the flap against the flip hole.
[0007] As a preferred technical solution, the rotating spray rod mechanism includes a rotating motor installed on the flap, the output end of the rotating motor is located on the lower side of the flap, at least two rotating spray rods are installed at the output end of the rotating motor, and each rotating spray rod is installed with a first nozzle.
[0008] As a preferred technical solution, the protective device includes a protective baffle of an integrated structure, the protective baffle is connected to the inner top of the outer cover of the rotating spray rod through a fixed bracket, the protective baffle is provided with a leakage hole, and the protective baffle is provided with annular rotating jet holes corresponding to each of the first nozzles. The protective baffle of the integrated structure can effectively reduce the wear of the rotating spray rod and the first nozzles by gravel and the adverse effects of foreign objects such as plastic bags and ropes on the rotating spray rod during the flushing process. The annular rotating jet hole corresponds to the rotation trajectory of the first nozzle, which does not affect the rotary flushing function, and is used together with the leakage hole to prevent the accumulation of garbage such as sewage and sand and gravel particles caused by flushing splashes on the inner plane of the protective baffle, reducing sewage corrosion and facilitating garbage cleaning.
[0009] As a preferred technical solution, the leakage holes include first leakage holes distributed on the protective baffle, and a second leakage hole is arranged on the protective baffle below the rotation center of the rotating spray rod; the rotating jet hole is composed of a plurality of arc-shaped arc holes.
[0010] As a preferred technical solution, the front baffle adjustment mechanism is located in front of the rotating spray bar mechanism; the front baffle adjustment mechanism includes a front baffle hinged to the front edge of the rotating spray bar cover, a front baffle rubber is installed at the lower end of the front baffle, and a front baffle driving device is arranged between the front baffle and the rotating spray bar cover. In the process of flushing the road surface, there will always be situations where the amount of garbage is different. The front baffle and the front baffle rubber are adjusted by the front baffle driving device to ensure that no garbage is left behind.
[0011] As a preferred technical solution, the outer cover body also includes side protective covers respectively arranged on both sides of the rotating spray rod outer cover, a straight spray rod outer cover is arranged at the rear end of the rotating spray rod outer cover, and a suction pipe is arranged on the rotating spray rod outer cover behind the rotating spray rod mechanism.
[0012] As a preferred technical solution, a direct spray rod mechanism is arranged at the rear of the suction pipe, and the direct spray rod mechanism is located below the direct spray rod outer cover, the direct spray rod mechanism includes a direct spray rod, both ends of the direct spray rod are respectively mounted on the side protective cover, a second nozzle is distributed on the direct spray rod, and the second nozzle is inclined forward and downward; the rear end of the direct spray rod outer cover is bent downward and extended and is connected to a rear stop rubber, and the rear stop rubber is located at the rear lower side of the direct spray rod.
[0013] The high-pressure water rotary flushing device for a washing and sweeping vehicle adopts the above technical solution, including an outer cover body, a plurality of rotary spray bar mechanisms are arranged on the outer cover body, the outer cover body includes a rotary spray bar outer cover, the rotary spray bar outer cover is provided with flip holes corresponding to each rotary spray bar mechanism, each flip hole is provided with an upward flip mechanism, each rotary spray bar mechanism is arranged on the corresponding upward flip mechanism, a protective device is arranged on the outer cover body below the rotary spray bar mechanism, and a front baffle adjustment mechanism is arranged at the front end of the rotary spray bar outer cover. The upward flip mechanism of the present invention effectively solves the cumbersome and inconvenient problem that the rotary nozzle needs to be disassembled and cleaned from the bottom of the cleaning device after being blocked, and the nozzle is easy to clean and improves work efficiency; the protective device achieves comprehensive protection against garbage, greatly reduces the risk of damage to the rotary spray bar mechanism during work, and ensures the normal use of the rotary flushing function; the front baffle adjustment mechanism can adjust the height of the front baffle from the ground in real time to ensure the smooth entry of garbage, avoid garbage blockage and cleaning residue; the double-row design of the rotary spray bar mechanism realizes effective overlap of the sprayed water curtain to avoid comb water marks on the ground. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The following drawings are intended only to illustrate and explain the present invention, and do not limit the scope of the present invention.
[0015] Figure 1 It is a schematic diagram of the structure of the present invention;
[0016] Figure 2 It is a bottom view schematic diagram of the present invention;
[0017] Figure 3 It is a schematic diagram of the present invention with one side of the side protective cover removed.
[0018] In the figure: 1-outer cover; 11-side protective cover; 12-rotating spray rod outer cover; 13-straight spray rod outer cover; 14-suction tube; 2-upward flip mechanism; 21-hinge; 22-flap; 23-pressing device; 3-front baffle adjustment mechanism; 31-front baffle drive device; 32-front baffle; 33-front baffle rubber; 4-rotating spray rod mechanism; 41-rotating motor; 42-rotating spray rod; 43-first nozzle; 5-straight spray rod mechanism; 51-support frame; 52-straight spray rod; 53-second nozzle; 54-rear baffle rubber; 6-protective baffle; 61-first leakage hole; 62-second leakage hole; 63-rotating jet hole; 64-fixed bracket. DETAILED DESCRIPTION
[0019] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.
[0020] like Figure 1 and Figure 2As shown, the high-pressure water rotary flushing device for a washing and sweeping vehicle of the present invention comprises an outer cover body 1, on which a plurality of rotary spray bar mechanisms 4 are arranged, and the outer cover body 1 comprises a rotary spray bar outer cover 12, on which flip holes corresponding to the rotary spray bar mechanisms 4 are arranged, respectively, and each flip hole is provided with an upward flip mechanism 2, and each rotary spray bar mechanism 4 is arranged on the corresponding upward flip mechanism 2, and a protective device is arranged below the rotary spray bar mechanism 4 on the outer cover body 1, and a front baffle adjustment mechanism is arranged at the front end of the rotary spray bar outer cover 12. The rotary spray bar mechanisms 4 are arranged in at least two rows front and back, and each row has at least two rotary spray bar mechanisms 4, and the rotary spray bar mechanisms 4 in two adjacent rows are arranged alternately. The rotating spray rod mechanisms 4 can be arranged in two, three or four rows or more, and each row of rotating spray rod mechanisms 4 can also be two, three, four or five or more. However, according to the actual working needs and installation structure requirements of the sweeper, it is preferred to adopt two rows of rotating spray rod mechanisms 4, that is, three rotating spray rod mechanisms 4 are evenly arranged in the front row and two rotating spray rod mechanisms 4 are evenly arranged in the back row, and the two rotating spray rod mechanisms 4 in the back row are arranged between two of the three rotating spray rod mechanisms 4 in the front row, so that the rotating spray rod mechanisms 4 in the front and rear rows are evenly arranged in a staggered form, so as to achieve effective overlap of the sprayed water curtains and avoid comb water marks on the ground. The outer cover body 1 also includes side protective covers 11 respectively arranged on both sides of the rotating spray rod outer cover 12. A straight spray rod outer cover 13 is arranged at the rear end of the rotating spray rod outer cover 12. The straight spray rod outer cover 13 and the rotating spray rod outer cover 12 can be hinged to facilitate maintenance; a suction pipe 14 is arranged on the rotating spray rod outer cover 12 at the rear of the rotating spray rod mechanism 4.
[0021] like Figure 1 and Figure 3As shown, the flipping mechanism 2 includes a flap 22 hinged at the flip hole on the rotating spray bar cover 12, and a pressing device 23 for pressing the flap 22 on the flip hole is provided on the rotating spray bar cover 12. The rotating spray bar mechanism 4 includes a rotating motor 41 installed on the flap 22, the output end of the rotating motor 41 is located at the lower side of the flap 22, at least two rotating spray bars 42 are installed at the output end of the rotating motor 41, and a first nozzle 43 is installed on each rotating spray bar 42, and each rotating spray bar 42 is evenly distributed with the output end of the rotating motor 41 as the center of the circle. Preferably, two rotating spray bars 42 are used and connected to the lower part of the rotating motor 41 symmetrically at 180 degrees from each other, so that each rotating spray bar mechanism 4 includes one rotating motor 41, two rotating spray bars 42 and two first nozzles 43, and the first nozzle 43 can be installed and connected to the outer end of the rotating spray bar 42 at a certain angle to the ground; the structure and working process of the rotating spray bar mechanism 4 are common knowledge in the art. The rotary motor 41 can also be a pneumatic motor, a hydraulic motor or an electric motor. Moreover, the flipping mechanism 2 is arranged on the upper surface of the rotating spray bar cover 12, and the flap 22 can be hingedly connected to the rotating spray bar cover 12 through the hinge 21 to realize the flipping action; the clamping device 23 can be a clamp, a swinging clamp, or even a clamping bolt to clamp the flip opening and closing end of the flap 22 on the rotating spray bar cover 12. The above-mentioned clamping device 23 and the clamping method are well-known common sense and will not be described in detail. The flip hole can be designed in a rectangular, circular or other form according to the needs of installation and operation convenience.
[0022] When any of the first nozzles 43 in the rotating spray rod mechanism 4 is blocked during operation, the clamping device 23 in the corresponding flipping mechanism 2 can be opened first, and then the flap 22 can be turned. At this time, the rotating motor 41 fixedly installed on the flap 22 will be driven to rotate together, and the rotation of the rotating motor 41 will drive the rotating spray rod 42 to rotate together. The rotation of the rotating spray rod 42 will also drive the first nozzle 43 to rotate and turn out from the turning hole, and rotate until the first nozzle 43 is exposed on the rotating spray rod outer cover 12. A suitable position that can be manually disassembled. During this process, the rotating spray rod 42 can rotate freely around the lower mounting end of the rotating motor 41. Therefore, when the flap 22 is turned, if the rotating spray rod 42 cannot be smoothly turned out from the turning hole, the rotating spray rod 42 can be rotated first until it can be turned out from the turning hole, and then the first nozzle 43 can be disassembled and unblocked. Finally, the first nozzle 43 that has been cleaned is installed back to its position, the flap 22 is lowered, and the clamping device 23 is closed. In this way, the nozzle clearing work of a set of rotating spray rod mechanisms 4 is successfully completed. The process is simple and convenient, and only needs to be operated from the cleaning device. The nozzle clearing work is targeted, which greatly improves the work efficiency.
[0023] like Figure 2 and Figure 3 As shown, the protective device includes a protective baffle 6 of an integrated structure, and the protective baffle 6 is connected to the inner top of the rotating spray rod outer cover 12 through a fixed bracket 64. The fixed bracket 64 can adopt a plate-like structure to facilitate protection. A leakage hole is provided on the protective baffle 6, and an annular rotating jet hole 63 corresponding to each of the first nozzles 43 is provided on the protective baffle 6, so that the protective baffle 6 is arranged below the rotating spray rod mechanism 4 and is separated from the ground by a distance. The front and rear ends of the protective baffle 6 can be connected to the inner top of the rotating spray rod outer cover 12 through the fixed bracket 64, and the two sides of the protective baffle 6 are pressed against or tightly connected to the side protective cover 11; the leakage holes include first leakage holes 61 distributed on the protective baffle 6, and a second leakage hole 62 is provided on the protective baffle 6 below the rotation center of the rotating spray rod; the rotating jet hole 63 is composed of a plurality of arc-shaped arc holes.
[0024] The integrated protective baffle 6 can effectively reduce the wear of the rotating spray rod 42 and the first nozzle 43 by gravel and the adverse effects of foreign objects such as plastic bags and ropes on the rotating spray rod 42 during flushing. At the same time, a rotating jet hole 63 corresponding to the rotation trajectory of the first nozzle 43 is provided on the protective baffle 6, which does not affect the rotary flushing function and works together with the first leakage hole 61 and the second leakage hole 62 to prevent the accumulation of garbage such as sewage and sand and gravel particles caused by flushing splashing on the inner plane of the protective baffle 6, thereby reducing sewage corrosion and facilitating garbage cleaning.
[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the front baffle adjustment mechanism 3 is located in front of the rotating spray bar mechanism 4; the front baffle adjustment mechanism 3 includes a front baffle 32 hinged to the front edge of the rotating spray bar cover 12, a front baffle rubber 33 is installed at the lower end of the front baffle 32, and a front baffle driving device 31 is arranged between the front baffle 32 and the rotating spray bar cover 12. The front baffle driving device 31 preferably adopts a cylinder, and can also adopt an oil cylinder and an electric push rod. And the front baffle rubber 33 can be installed on the front baffle 32 by bolts.
[0026] In the process of flushing the road surface, there will always be situations where the amount of garbage is different. At this time, the front baffle adjustment mechanism 3 can be used for real-time control to ensure that no garbage is left behind. That is, when the amount of garbage on the road surface is large, the cylinder of the front baffle drive device 31 can be controlled to extend to drive the front baffle 32 and the front baffle rubber 33 to rotate toward the top of the rotating spray rod outer cover 12 to increase the height from the ground, so that the larger and more garbage can enter the outer cover body 1 smoothly; when the amount of garbage on the road surface is small, the cylinder can be controlled to retract to drive the front baffle 32 and the front baffle rubber 33 to rotate away from the top of the rotating spray rod outer cover 12 to reduce the height from the ground to ensure the airtightness of the outer cover body 1.
[0027] like Figure 2 and Figure 3 As shown, a direct spray rod mechanism 5 is arranged at the rear of the suction pipe 14, and the direct spray rod mechanism 5 is located below the direct spray rod outer cover 13, and the direct spray rod mechanism 5 includes a direct spray rod 52, and both ends of the direct spray rod 52 are respectively mounted on the side protective cover 11, and at the same time, the middle part of the direct spray rod 52 can be installed and fixed by a support frame 51, so as to support the direct spray rod 52, and the support frame 51 can be connected to the rotating spray rod outer cover 12; a second nozzle 53 is distributed on the direct spray rod 52, and the second nozzle 53 is tilted forward and downward, so that the second nozzle 53 is evenly arranged and installed on the direct spray rod 52 and forms an angle with the ground, which is convenient for ground cleaning and flushing; the rear end of the direct spray rod outer cover 13 is bent downward and extended and connected with a rear stop rubber 54, and the rear stop rubber 54 is located at the rear lower side of the direct spray rod 52, and the rear stop rubber 54 is connected to the direct spray rod outer cover 13 by bolts. In this way, the opening of the entire outer cover body 1 faces the ground and is placed above and on both sides of the rotating spray rod mechanism 4 and the straight spray rod mechanism 5, with excellent supporting and protective effects.
[0028] The flushing function body of the present invention is a rotating spray rod mechanism 4 and a straight spray rod mechanism 5, and the arrangement of the two is that the rotating spray rod mechanism 4 is in front of the suction pipe 14, and the straight spray rod mechanism 5 is behind the suction pipe 14. The rotating spray rod mechanism 4 adopts a double row of three in the front and two in the back, a total of five, in a staggered and evenly distributed manner, and the two rotating spray rod mechanisms 4 in the back row are evenly arranged between the three rotating spray rod mechanisms 4 in the front row, which can effectively reduce the problem of comb water marks easily left during road cleaning when arranged in a single row; at the same time, the arrangement of front rotary spray and rear direct spray further avoids and solves the situation where the road surface is not cleaned cleanly due to blockage of the first nozzle 43 in the front rotating spray rod mechanism 4.
[0029] Therefore, compared with the prior art, the flip-up mechanism 2 designed in the present invention can effectively solve the cumbersome and inconvenient problem that the nozzle of the rotating spray rod mechanism 4 needs to be disassembled from the bottom of the device for cleaning after being blocked, thereby improving work efficiency; the protective device designed can achieve comprehensive protection against garbage accumulation, greatly reducing the risk of damage to the rotating spray rod mechanism 4 during operation, and ensuring the normal use of the rotary flushing function; the front baffle adjustment mechanism 3 designed can adjust the height of the front baffle 32 from the ground in real time to ensure smooth entry of garbage and avoid garbage blockage and cleaning residues; the double-row design of the rotating spray rod mechanism 4 can achieve effective overlap of the sprayed water curtain to avoid comb water marks on the ground.
[0030] Finally, it should be noted that the above description is not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A high-pressure water rotary flushing device for a washing and sweeping vehicle, comprising an outer cover body, on which a plurality of rotary spray rod mechanisms are arranged, characterized in that: The outer cover body comprises a rotating spray bar outer cover, the rotating spray bar outer cover is provided with flip holes corresponding to the rotating spray bar mechanisms respectively, each flip hole is provided with an upward flip mechanism respectively, each rotating spray bar mechanism is provided on the corresponding upward flip mechanism respectively, a protective device is provided on the outer cover body below the rotating spray bar mechanism, and a front baffle adjustment mechanism is provided at the front end of the rotating spray bar outer cover; The rotary spray bar mechanisms are arranged in at least two rows front to back, and each row has at least two rotary spray bar mechanisms, and the rotary spray bar mechanisms in two adjacent rows are arranged in an interlaced manner; The upward turning mechanism comprises a flap hinged at the turning hole on the outer cover of the rotating spray bar, and a pressing device for pressing the flap onto the turning hole is arranged on the outer cover of the rotating spray bar.
2. A high-pressure water rotary flushing device for a washing and sweeping vehicle as claimed in claim 1, characterized in that: The rotary spray rod mechanism comprises a rotary motor mounted on the flap, the output end of the rotary motor is located at the lower side of the flap, at least two rotary spray rods are mounted on the output end of the rotary motor, and each rotary spray rod is mounted with a first nozzle.
3. A high-pressure water rotary flushing device for a washing and sweeping vehicle as claimed in claim 2, characterized in that: The protective device includes an integrated protective baffle, which is connected to the inner top of the rotating spray rod outer cover through a fixed bracket, and is provided with a leakage hole, and is provided with annular rotating jet holes corresponding to each of the first nozzles.
4. A high-pressure water rotary flushing device for a washing and sweeping vehicle as claimed in claim 3, characterized in that: The leakage holes include first leakage holes distributed on the protective baffle, and second leakage holes are respectively arranged on the protective baffle below the rotation center of each rotating spray rod; the rotating spray hole is composed of a plurality of arc-shaped holes.
5. The high-pressure water rotary flushing device for a washing and sweeping vehicle as claimed in claim 1, characterized in that: The front baffle adjustment mechanism is located in front of the rotating spray rod mechanism; the front baffle adjustment mechanism includes a front baffle hinged on the front edge of the rotating spray rod outer cover, a front baffle rubber is installed at the lower end of the front baffle, and a front baffle driving device is arranged between the front baffle and the rotating spray rod outer cover.
6. A high-pressure water rotary flushing device for a washing and sweeping vehicle as claimed in any one of claims 1 to 5, characterized in that: The outer cover body also includes side protective covers respectively arranged on both sides of the rotating spray rod outer cover, a straight spray rod outer cover is arranged at the rear end of the rotating spray rod outer cover, and a suction pipe is arranged on the rotating spray rod outer cover at the rear of the rotating spray rod mechanism.
7. A high-pressure water rotary flushing device for a washing and sweeping vehicle as claimed in claim 6, characterized in that: A direct spray rod mechanism is arranged at the rear of the suction pipe, and the direct spray rod mechanism is located below the direct spray rod outer cover. The direct spray rod mechanism includes a direct spray rod, and both ends of the direct spray rod are respectively mounted on the side protective cover. A second nozzle is distributed on the direct spray rod, and the second nozzle is arranged tilted forward and downward; the rear end of the direct spray rod outer cover is bent downward and extended and is connected with a rear stop rubber, and the rear stop rubber is located at the rear lower side of the direct spray rod.
Citation Information
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