CN211463552U

CN211463552U - Rotary spray head

Info

Publication number: CN211463552U
Application number: CN201921703680.8U
Authority: CN
Inventors: 吕鸣; 汪建; 廖应民; 季国炜; 顾国钟
Original assignee: Suzhou Agricultural Chemicals Machinery Co ltd
Current assignee: Suzhou Agricultural Chemicals Machinery Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-09-11
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a rotary sprayer, including the shower nozzle main part, the rotation axis, fixed axle and several nozzle assembly, the rotation axis is hollow axle with the fixed axle, and the shower nozzle main part, fixed axle and rotation axis are all coaxial, and the inside cavity that is of shower nozzle main part, fixed axle run through the top of shower nozzle main part, and the fixed axle cover is established on the axle body of rotation axis, and nozzle assembly installs the outside lower part position in the shower nozzle main part, and the plane slope that the bottom of the relative shower nozzle main part of nozzle assembly is located sets up, and nozzle assembly communicates with each other through the well kenozooecium of. The utility model discloses the rotation axis is rotatory under the rivers reaction that nozzle assembly erupted in step with the shower nozzle main part, and the fixed axle is used for installing this rotatory nozzle on other parts, and rotatory nozzle rotational speed is stable.

Description

Rotary spray head

Technical Field

The utility model relates to a wash the field that disappears, especially relate to a rotatory nozzle.

Background

In the field of decontamination, it is often necessary to use spray heads for spraying water or medicaments. In order to increase the spraying area, the spray head can have a rotating function. The rotary spray head can rotate under the pushing action of the tangential acting force of water flow, water is sprayed while rotating, and when the rotary spray head does not spray water any more, the rotary spray head stops slowly due to no reaction force. When the existing rotary nozzle rotates, the rotating speed of the existing rotary nozzle is related to factors such as the flow velocity of water flow, water pressure, friction force and the like, and the rotating speed of the existing rotary nozzle is unstable, so that uneven spraying is easily caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a rotatory nozzle, it passes through damping device, has solved the unstable problem of rotatory nozzle rotational speed.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a rotary sprayer, includes shower nozzle main part, rotation axis, fixed axle and several nozzle assembly, the rotation axis with the fixed axle is hollow axle, shower nozzle main part, fixed axle and the rotation axis is all coaxial, the shower nozzle main part is inside for holding the fixed axle with the cavity of rotation axis, the fixed axle runs through the top of shower nozzle main part, the fixed axle cover is established on the axle body of rotation axis, nozzle assembly installs the outside lower part position of shower nozzle main part, nozzle assembly is relative the plane slope at the bottom place of shower nozzle main part sets up, nozzle assembly pass through the outlet pipe with the well kenozooecium of rotation axis communicates with each other and is connected.

Preferably, the nozzle body comprises a housing and a cover body, the top of the housing is open, the cover body is mounted on the top of the housing to close the opening, and the housing and the cover body are connected through screws.

Preferably, a bearing pad is arranged above the damping device, a bearing seat is installed above the bearing pad, a deep groove ball bearing is arranged inside the bearing seat, and a thrust ball bearing is arranged above the bearing seat.

Preferably, a first needle bearing is disposed between the stationary shaft and the rotating shaft, a space is disposed between an inner wall of the stationary shaft and the rotating shaft, oil for lubrication is filled in the space, and an oil seal ring is disposed between the stationary shaft and the rotating shaft and located above the rotating shaft.

Preferably, the fixed shaft is provided with threads in an area located outside the nozzle body, the top end of the rotating shaft is lower than the top end of the fixed shaft, a water sealing ring is arranged between the rotating shaft and the fixed shaft and located above the oil sealing ring, and a water-oil separation ring is arranged between the water sealing ring and the oil sealing ring.

Preferably, one end of the water outlet pipe, which is far away from the rotating shaft, is connected with a water outlet choke plug, the water outlet choke plug is fixed on the spray head main body, the nozzle assembly comprises a universal joint and a nozzle, and the universal joint is connected with the water outlet choke plug and the nozzle.

Preferably, the damping device comprises a disc body, an eccentric ring, an internal gear, an external gear and a second needle bearing, wherein an oil storage cavity is arranged below the disc body, the disc body and the eccentric ring are fixedly connected with the spray head main body through a cylindrical pin, the eccentric ring, the second needle bearing, the internal gear and the external gear are all located above the disc body and are sequentially arranged from outside to inside, an oil inlet hole and an oil outlet hole which are communicated with the oil storage cavity are arranged on the disc body in a penetrating mode, the oil inlet hole and the oil outlet hole are communicated with the internal gear and an area between the external gears, the internal gear is meshed with the external gear, and the external gear is fixedly connected with the fixed shaft.

Preferably, an adjusting needle valve is arranged below the oil outlet, a pressure relief hole communicated with the oil storage cavity is arranged on the disk body in a penetrating mode, a pressure relief ball valve is arranged below the pressure relief hole, and the adjusting needle valve penetrates through the bottom of the spray head main body.

Preferably, the bottom of the spray head main body is provided with an oil filling needle valve communicated with the oil storage cavity.

Preferably, the damping device further comprises an upper gear cover, the upper gear cover is arranged above the eccentric ring, and a gear cover sealing seat is arranged between the upper gear cover and the fixed shaft.

The utility model has the advantages that: the utility model provides a rotatory nozzle, rotation axis and shower nozzle main part rotate under the rivers reaction that the nozzle assembly erupted in step, and the fixed axle is used for installing this rotatory nozzle on other parts, and rotatory nozzle is difficult for rocking, and the rotational speed is stable.

Drawings

Fig. 1 is a schematic external structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the nozzle body according to the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

fig. 4 is a schematic structural view of the damping device of the present invention;

wherein: 1. the sprayer comprises a sprayer body, a shell 101, a shell 102, a cover body, a rotating shaft 2, a fixed shaft 3, a nozzle assembly 4, a universal joint 401, a nozzle 402, a screw 5, a bearing pad 6, a bearing seat 7, a deep groove ball bearing 8, a thrust ball bearing 9, a first needle bearing 10, an oil seal ring 11, an oil seal ring 12, an oil-water space ring 13, a water seal ring 14, a water outlet choke plug 15, a disk body 16, an eccentric ring 16, an internal gear 17, an external gear 18, a second needle bearing 19, an upper gear cover 20, an oil storage cavity 21, a cylindrical pin 22, an oil inlet 23, an oil outlet 24, an oil outlet 25, an adjusting needle valve 26, a pressure relief ball valve 27, an oil filling 28, a gear cover seal seat 29, a water outlet pipe 29 and a pressure relief hole 30.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the present embodiment provides a rotary spray head including a spray head body 1, a rotary shaft 2, a fixed shaft 3, and a plurality of nozzle assemblies 4.

The rotating shaft 2 and the fixed shaft 3 are both hollow shafts, the sprayer body 1, the fixed shaft 3 and the rotating shaft 2 are all coaxial, and a cavity for accommodating the fixed shaft 3 and the rotating shaft 2 is formed inside the sprayer body 1. The fixed shaft 3 penetrates the top of the head main body 1, i.e., the upper part region of the fixed shaft 3 is above the head main body 1, and the rest is in the head main body 1. The fixed shaft 3 is sleeved on the shaft body of the rotating shaft 2, wherein the top end of the rotating shaft 2 is lower than the top end of the fixed shaft 3, and the lower part of the rotating shaft penetrates through the fixed shaft 3 and extends downwards. The nozzle assembly 4 is installed at an outer lower position of the head main body 1. The preferred embodiment is to have four nozzle assemblies 4, evenly distributed around the circumference of the sprinkler body 1. The fixed shaft 3 serves to connect the rotary sprayer with other devices such as a shower stand, a water supply device, or a ceiling, and thus, the fixed shaft 3 is provided with threads on a region outside the sprayer body 1.

The nozzle assembly 4 is obliquely arranged relative to the plane of the bottom of the spray head main body 1, and the nozzle assembly 4 is communicated and connected with the hollow part of the rotating shaft 2 through a water outlet pipe 29. The hollow portion of the rotating shaft 2 is used for water passage.

The water of the rotary nozzle enters the nozzle assembly 4 from the rotary shaft 2, and since the nozzle assembly 4 is obliquely arranged, the nozzle body 1 rotates under the reaction of the water, the rotary shaft 2 rotates simultaneously, and the fixed shaft 1 is kept still.

The head main body 1 includes a case 101 and a cover 102, the case 101 is opened at the top, the cover 102 is mounted on the top of the case 101 to close the opening, and the case 101 and the cover 102 are connected by screws. In this way, it is convenient to assemble the fixed shaft 3, the rotary shaft 2, and other parts inside the head main body 1.

A first needle bearing 10 is provided between the stationary shaft 3 and the rotating shaft 2 to reduce a friction coefficient with the stationary shaft 3 when the rotating shaft 2 rotates, while ensuring the rotating shaft 2 and the stationary shaft 3 to be coaxial. A gap is provided between the inner wall of the fixed shaft 3 and the rotating shaft 2, and oil for lubrication is filled in the gap. In order to block oil between the fixed shaft 3 and the rotating shaft 2, an oil sealing ring 11 is arranged between the fixed shaft 3 and the rotating shaft 2, the oil sealing ring 11 is positioned at the upper part of the rotating shaft 2, and a sealing head is arranged at the bottom end of the fixed shaft 3. A water seal ring 13 is provided between the rotating shaft 2 and the stationary shaft 3, and the water seal ring 13 is located above the oil seal ring 11 to prevent water from leaking between the rotating shaft 2 and the stationary shaft 3. And a water-oil separation ring 12 is arranged between the water sealing ring 13 and the oil sealing ring 11.

The water outlet pipe 29 is connected with a water outlet choke plug 14 at one end far away from the rotating shaft 2, the water outlet choke plug 14 is fixed on the spray head main body 1, the nozzle assembly 4 comprises a universal joint 401 and a nozzle 402, and the universal joint 401 is connected with the water outlet choke plug 14 and the nozzle 402. In order to ensure the water outlet speed, the end of the nozzle 402 far away from the universal joint 401 has a smaller caliber.

Referring to fig. 3 and 4, a damping device is installed inside the head main body 1, and the damping device is disposed between the fixed shaft 3 and the inner wall of the head main body 1. The damper device includes a disk body 15, an eccentric ring 16, an internal gear 17, an external gear 18, a second needle bearing 19, and a gear upper cover 20. An oil reservoir chamber 21 is provided below the disc body 15. The disk body 15 and the eccentric ring 16 are fixedly connected with the nozzle body 1 through a cylindrical pin 22, and the eccentric ring 16, the second needle bearing 19, the internal gear 17 and the external gear 18 are all positioned above the disk body 15 and are sequentially arranged from outside to inside. The gear upper cover 20 is disposed above the eccentric ring 16, that is, the eccentric ring 16, the second needle bearing 19, the internal gear 17, and the external gear 18 are disposed between the disk body 15 and the gear upper cover 20. A gear cover sealing seat 28 is provided between the gear upper cover 20 and the fixed shaft 3 to improve sealability and prevent oil leakage. The internal gear 17 is a gear with a ring gear on the inner ring, and the external gear 18 is a gear with a ring gear on the outer ring.

An oil inlet hole 23 and an oil outlet hole 24 communicated with the oil storage chamber 21 are perforated in the disk body 15, and both the oil inlet hole 23 and the oil outlet hole 24 are communicated with the region between the inner gear 17 and the outer gear 18. The internal gear 17 and the external gear 18 are engaged with each other, and the external gear 18 is fixedly connected to the fixed shaft 3.

An adjusting needle valve 25 is arranged below the oil outlet hole 24. A pressure relief hole 30 communicated with the oil storage cavity 21 is arranged on the disk body 15 in a penetrating way, a pressure relief ball valve 26 is arranged below the pressure relief hole 30, and the adjusting needle valve 25 penetrates through the bottom of the sprayer body 1. The pressure relief ball valve 26 includes a ball body and a spring provided under the ball body for supporting the ball body. In order to facilitate the refueling, the bottom of the head main body 1 is provided with a refueling needle valve 27 communicating with the oil storage chamber 21.

When the rotary head is used, the head main body 1 rotates, and the disk body 15, the eccentric ring 16, and the cap seal holder 28 rotate in synchronization. Under the action of the rotation of the eccentric ring 16, the meshing space between the internal gear 17 and the external gear 18 is increased in one side and decreased in the other side. The side where the space becomes large creates a vacuum, and the oil in the oil reservoir enters between the internal gear 17 and the external gear 18 from the oil inlet hole 23. The reduced side of the space generates pressure to return the pressure oil from the oil outlet hole 24 to the oil reservoir chamber 21. Then, the needle valve 25 is locked, and when the operation is continued, negative pressure on one side and positive pressure on one side are always maintained, and the pressurized oil is locked between the inner gear 17 and the outer gear 18. When the nozzle body 1 rotates, due to the existence of pressure oil, the rotation of the internal gear 17 can generate obstruction, the internal gear 17 obstructs the rotation of the eccentric ring 16, and the rotation of the nozzle body 1 can also be obstructed because the eccentric ring 16 and the nozzle body 1 are fixed, so that the uniform rotation speed of the nozzle body 1 is ensured, and the over-high rotation speed is prevented. The resistance can be changed by changing the gap between the adjusting needle valve 25 and the oil outlet 24, so that the rotating speed can be changed. In addition, when the rotational speed of the head body 1 is excessively high, the pressure between the internal gear 17 and the external gear 18 presses the pressure relief ball valve 26, so that the interval between the pressure relief ball valve 26 and the pressure relief hole 30 is increased, thereby relieving partial pressure and preventing the internal pressure from being excessively high.

And a bearing pad 6 is arranged above the damping device, a bearing seat 7 is arranged above the bearing pad 6, and a deep groove ball bearing 8 is arranged inside the bearing seat 7. The deep groove ball bearing 8 can reduce the friction coefficient between the fixed shaft 3 and the head main body 1. A thrust ball bearing 9 is arranged above the bearing seat 7. The thrust ball bearing 9 bears with its lower side against the bearing seat 7 and with its upper side against the inner wall of the cover 102, and serves to carry the axial thrust load of the spray head body 1.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims

1. A rotary spray head is characterized by comprising a spray head main body (1), a rotating shaft (2), a fixed shaft (3) and a plurality of spray nozzle components (4), the rotating shaft (2) and the fixed shaft (3) are both hollow shafts, the sprayer body (1), the fixed shaft (3) and the rotating shaft (2) are all coaxial, the inner part of the spray head main body (1) is a cavity for accommodating the fixed shaft (3) and the rotating shaft (2), the fixed shaft (3) penetrates through the top of the sprayer body (1), the fixed shaft (3) is sleeved on the shaft body of the rotating shaft (2), the nozzle component (4) is arranged at the lower position of the outer side of the spray head main body (1), the nozzle component (4) is obliquely arranged relative to the plane of the bottom of the spray head main body (1), the nozzle assembly (4) is communicated and connected with the hollow part of the rotating shaft (2) through a water outlet pipe (29).

2. The rotary head according to claim 1, wherein the head body (1) comprises a case (101) and a cover body (102), the case (101) is open at the top, the cover body (102) is mounted on the top of the case (101) to close the opening, and the case (101) and the cover body (102) are connected by screws.

3. The rotary spray head according to claim 1, wherein a first needle bearing (10) is provided between the stationary shaft (3) and the rotary shaft (2), a space is provided between an inner wall of the stationary shaft (3) and the rotary shaft (2), the space is filled with oil for lubrication, an oil seal ring (11) is provided between the stationary shaft (3) and the rotary shaft (2), and the oil seal ring (11) is located at an upper portion of the rotary shaft (2).

4. The rotary sprinkler head according to claim 3, characterized in that the fixed shaft (3) is provided with threads on a region outside the sprinkler body (1), the top end of the rotating shaft (2) is lower than the top end of the fixed shaft (3), a water seal ring (13) is provided between the rotating shaft (2) and the fixed shaft (3), the water seal ring (13) is located above the oil seal ring (11), and a water-oil spacer ring (12) is provided between the water seal ring (13) and the oil seal ring (11).

5. Rotary sprinkler according to claim 1, characterised in that the end of the outlet pipe (29) remote from the axis of rotation (2) is connected to a water outlet bulkhead (14), the water outlet bulkhead (14) being fixed to the sprinkler body (1), the nozzle assembly (4) comprising a universal joint (401) and a nozzle (402), the universal joint (401) connecting the water outlet bulkhead (14) and the nozzle (402).

6. The rotary spray head according to claim 1, wherein a damping device is installed inside the spray head main body (1), the damping device is arranged between the fixed shaft (3) and the inner wall of the spray head main body (1), the damping device comprises a disk body (15), an eccentric ring (16), an internal gear (17), an external gear (18) and a second needle bearing (19), an oil storage cavity (21) is arranged below the disk body (15), the disk body (15) and the eccentric ring (16) are fixedly connected with the spray head main body (1) through a cylindrical pin (22), the eccentric ring (16), the second needle bearing (19), the internal gear (17) and the external gear (18) are all located above the disk body (15) and are sequentially arranged from outside to inside, an oil inlet hole (23) and an oil outlet hole (24) communicated with the oil storage cavity (21) are formed in the disk body (15) in a penetrating manner, the oil inlet hole (23) and the oil outlet hole (24) are communicated with the inner gear (17) and the area between the outer gears (18), the inner gear (17) is meshed with the outer gear (18), and the outer gear (18) is fixedly connected with the fixed shaft (3).

7. The rotary sprayer according to claim 6, wherein an adjusting needle valve (25) is arranged below the oil outlet (24), a pressure relief hole (30) communicated with the oil storage cavity (21) is formed in the disk body (15) in a penetrating manner, a pressure relief ball valve (26) is arranged below the pressure relief hole (30), and the adjusting needle valve (25) penetrates through the bottom of the sprayer body (1).

8. Rotary sprayhead according to claim 7, wherein the sprayhead body (1) is provided at its bottom with a refueling needle valve (27) communicating with the oil reservoir (21).

9. Rotary sprayhead according to claim 8, wherein the damping device further comprises a gear upper cover (20), the gear upper cover (20) being arranged above the eccentric ring (16), a gear cover sealing seat (28) being arranged between the gear upper cover (20) and the stationary shaft (3).

10. Rotary sprayhead according to claim 6, wherein a bearing pad (6) is arranged above the damping device, a bearing block (7) is mounted above the bearing pad (6), a deep groove ball bearing (8) is arranged inside the bearing block (7), and a thrust ball bearing (9) is arranged above the bearing block (7).