An integrated elbow nozzle

Abstract

The utility model relates to liquid injection device technical field discloses an integral elbow nozzle, including nozzle part and elbow part, the nozzle part includes nozzle body, and the step shaft is shaped on nozzle body, and the annular clamping groove that cross section is right trapezoidal shape is shaped to the step of step shaft, the elbow part includes the vertical joint part and horizontal joint part of integral forming, and vertical joint part and horizontal joint part inside hollow and both communicate to set up, and vertical joint part inserts the small end shaft on step shaft and both clearance fit connection, the lower end inner edge of vertical joint part is shaped with the convex ring, and the lower end of convex ring is shaped with the inside fold ring, and inside fold ring inserts in annular clamping groove, the elastic occlusion ware is equipped in horizontal joint part inside. To solve the problem of high procurement cost, inconvenient installation, poor sealing performance in the prior art, realize the effect of reducing procurement cost, improving installation efficiency and enhancing sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of liquid injection device technology, and in particular to an integrated elbow nozzle. Background Technology

[0002] In fire suppression systems for energy storage cabinets, liquid is typically sprayed through nozzles for extinguishing fires. However, the existing nozzle design suffers from long-standing systemic flaws. Current technology typically uses a separate nozzle section and an elbow, with the elbow often employing a "nut + bend" combination. The nozzle section includes the nozzle body, which contains a one-way valve, a guide tongue, and a nozzle orifice. The nozzle body also has external threads, and the two are connected via these threads. This traditional structure has significant drawbacks:

[0003] First, from the perspective of the OEM, the two components need to be purchased from two different suppliers, and the cost of purchasing each component is high, which increases the procurement process and costs.

[0004] Secondly, since the two components are manufactured by different manufacturers, size mismatch is likely to occur during assembly, which can lead to installation difficulties and, in severe cases, affect the sealing performance of the device.

[0005] In addition, threaded connections are not only cumbersome to install, but may also loosen due to vibration and other factors during long-term use, affecting the stability and reliability of the device. Utility Model Content

[0006] The purpose of this invention is to provide an integrated elbow nozzle to solve the problems of high procurement cost, inconvenient installation, and poor sealing performance in the prior art, thereby achieving the effects of reducing procurement costs, improving installation efficiency, and enhancing sealing performance.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] An integrated elbow nozzle includes a nozzle part and an elbow head. The nozzle part includes a nozzle body with a stepped shaft formed thereon. An annular groove with a right-angled trapezoidal cross-section is formed at the step of the stepped shaft. The elbow head includes an integrally formed vertical connector part and a horizontal connector part. The vertical connector part and the horizontal connector part are hollow inside and are connected to each other. The vertical connector part is inserted into the small end of the stepped shaft and the two are connected with a clearance fit.

[0009] The lower inner edge of the vertical connector is formed with a protruding ring, and the lower end of the protruding ring is formed with an inner folded ring, which is inserted into the annular groove.

[0010] The transverse joint is equipped with an elastic engagement device. The elbow can be rotatably connected to the nozzle by the connection of the inner folding ring and the annular groove, and the nozzle and elbow form a whole. This saves downstream manufacturers from having to purchase two separate components, the elbow and the nozzle, from two different suppliers, reducing procurement costs. It also saves downstream manufacturers the trouble of installing the elbow and the nozzle, improving installation efficiency.

[0011] Furthermore, a pressure platform is formed at the upper end of the vertical joint portion;

[0012] The inner diameter of the annular groove is smaller than the outer diameter of the small end of the stepped shaft, and the inner diameter of the inner folded ring is smaller than the outer diameter of the small end of the stepped shaft. Using a pressure platform allows for more even force distribution when the lower end of the convex ring is bent into an inner folded ring.

[0013] Furthermore, multiple first sealing rings are fitted onto the small end of the stepped shaft, and these first sealing rings abut against the inner wall of the vertical joint. The first sealing rings increase the sealing between the vertical joint and the stepped shaft, preventing water leakage and improving overall sealing.

[0014] Furthermore, a second sealing ring is fitted inside the transverse joint, and the second sealing ring is located inside the elastic interlocking device. Externally inserted pipes rest against the second sealing ring, preventing water entering the transverse joint from overflowing back and improving sealing.

[0015] Furthermore, a groove is formed at the end of the nozzle body away from the step axis, and a sealing gasket is embedded in the groove. During installation, the sealing gasket is placed against the corresponding mounting plate to prevent water inside the nozzle body from overflowing outward, further improving the sealing performance with the external connection plate.

[0016] Furthermore, the sealing gasket is formed with two or more closed sealing protrusions.

[0017] Furthermore, a cover plate is provided on the opposite side of the sealing gasket, and the cover plate is fitted onto the screw, which is screwed onto the nozzle body. During installation, the cover plate and the sealing gasket are located on opposite sides of the external connecting plate. The cover plate facilitates the positioning and installation of the screw, and also concentrates the force exerted by the screw on the connecting plate onto the cover plate. The cover plate has a large area, which allows for a more uniform force on the connecting plate.

[0018] Furthermore, the resilient bite device includes a spring piece and a pressing head that are inserted into the transverse connector portion;

[0019] The transverse joint is formed with a large-diameter hole, a medium-diameter hole and a small-diameter hole from the inside to the outside; the spring is inserted into the large-diameter hole; the spring is in the shape of a rotating body and has multiple opening slots formed on it;

[0020] The outer wall of the pressing head has a protrusion formed therein, which is inserted into the middle diameter hole. In use, the pressing head is pressed inward to drive the inner end of the elastic plate to deform outward, and then the external tube is inserted into the elastic plate. Then the pressing head is released, the elastic plate returns to its original position and the inner end is pressed against the outer wall of the tube, thereby locking the tube.

[0021] Another structure of the resilient bite device: the transverse joint portion has a locking hole formed inside, which is small in the middle and large at both ends;

[0022] The elastic bite device is a hollow rotating body; it has an outer cone, an inner cone, and multiple slots penetrating the outer and inner cones, with the outer cone located inside the central hole of the clamping hole. In use, the tube is inserted into the elastic bite device, with the end of the tube abutting against the inner cone and driving the inner cone outwards, thus inserting the tube. If the tube is pulled outwards, the outer cone abuts against the central hole of the clamping hole, driving the outer cone hole to move further inwards, thereby also driving the inner cone to move inwards, thus clamping the tube more tightly.

[0023] The outstanding effect of this utility model is:

[0024] Compared with existing technologies, the nozzle and elbow are integrated into one unit, eliminating the need for downstream manufacturers to purchase from two separate suppliers, thus reducing procurement channels and costs.

[0025] It eliminates the assembly steps of the bent head and nozzle part in the traditional structure, and directly connects to the external parts through the overall structure, which greatly shortens the installation time.

[0026] The multi-seal design, consisting of a first sealing ring between the stepped shaft and the vertical joint, a second sealing ring inside the horizontal joint, and a sealing gasket, effectively prevents water leakage and improves sealing performance.

[0027] The design of the flexible bite device ensures a reliable fastening of the external pipe and prevents it from falling off. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a cross-sectional view of the present invention;

[0030] Figure 3 for Figure 2 A magnified view of a specific area (A);

[0031] Figure 4 This is a schematic diagram of the structure of the spring sheet of this utility model;

[0032] Figure 5 This is a schematic diagram of another embodiment of the elastic interlocking component.

[0033] Reference numerals: 1. Nozzle section; 11. Nozzle body; 12. One-way valve body; 13. Guide tongue; 14. Nozzle section; 15. Screw; 16. First sealing ring; 17. Sealing gasket; 171. Sealing convex ring; 18. Cover plate;

[0034] 111. Stepped shaft; 112. Annular groove; 113. Settling groove;

[0035] 2. Bent head; 21. Vertical joint; 22. Horizontal joint; 23. Flexible interlocking device; 24. Second sealing ring;

[0036] 211. Convex ring; 212. Inner folded ring; 213. Pressing platform;

[0037] 221. Large diameter hole; 222. Medium diameter hole; 223. Small diameter hole; 226. Stuck hole;

[0038] 231. Spring; 2311. Opening groove; 232. Pressing head; 2321. Protrusion; 233. Groove; 234. Outer cone; 235. Inner cone. Detailed Implementation

[0039] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0040] The following is for reference Figures 1 to 5 The present invention will be described as follows:

[0041] As shown in Figure 1, an integrated elbow nozzle includes a nozzle part 1 and an elbow head 2.

[0042] As shown in Figure 2, the nozzle part 1 includes a nozzle body 11, which contains a one-way valve body 12, a guide tongue 13, and a nozzle orifice 14. Multiple screws 15 are screwed onto the nozzle body 11. A stepped shaft 111 is formed on the nozzle body 11, and an annular groove 112 with a right-angled trapezoidal cross-section is formed at the step of the stepped shaft 111. The elbow 2 includes an integrally formed vertical connector 21 and a horizontal connector 22. The vertical connector 21 and the horizontal connector 22 are hollow inside and communicate with each other. The vertical connector 21 is inserted into the small end of the stepped shaft 111, and the two are connected with a clearance fit.

[0043] The lower inner edge of the vertical connector 21 is formed with a protruding ring 211, and the lower end of the protruding ring 211 is formed with an inner folded ring 212, which is inserted into the annular groove 112.

[0044] The transverse joint 22 is equipped with an elastic engagement device 23. The elbow 2 can be rotatably connected to the nozzle 1 through the connection of the inner folding ring 212 and the annular groove 112. The nozzle 1 and the elbow 2 form a whole, which saves downstream manufacturers from having to purchase the elbow 2 and the nozzle 1 from two different supporting manufacturers, reducing procurement costs. It also saves downstream manufacturers from installing the elbow 2 and the nozzle 1, improving installation efficiency.

[0045] Working principle: The external pipe is inserted into the horizontal connector 22 and the end of the external pipe is fastened by the elastic clamp 23; the nozzle body 11 is fixed to the corresponding connecting plate by multiple screws 15, and the connecting plate is preset with water spray clearance holes; then the external pipe introduces high pressure water into the horizontal connector 22 and then into the vertical connector 21. The water pressure in the vertical connector 21 increases and opens the one-way valve. The water passes through the guide valve and the guide tongue 13 and is sprayed out from the nozzle 14.

[0046] A pressure platform 213 is formed at the upper end of the vertical joint portion 21;

[0047] The inner diameter of the annular groove 112 is smaller than the outer diameter of the small end of the stepped shaft 111, and the inner diameter of the inner folded ring 212 is smaller than the outer diameter of the small end of the stepped shaft 111. The formation steps of the inner folded ring 212 are as follows: Before bending, the inner folded ring 212 is the lower half of the convex ring 211. After the convex ring 211 is inserted into the annular groove 112, its lower end abuts against the inclined surface of the annular groove 112. Then, pressure is applied to the pressure platform 213, and the lower end of the convex ring 211 bends inward under the guidance of the inclined surface to form the inner folded ring 212. This inner folded ring 212 then holds the stepped shaft 111 in place, allowing the bent head 2 to rotate on the nozzle section 1 and move slightly along the axial direction of the stepped shaft 111. The pressure platform 213 ensures that the force is more evenly distributed when the lower end of the convex ring 211 is bent into the inner folded ring 212.

[0048] Multiple first sealing rings 16 are fitted onto the small end of the stepped shaft 111, and the first sealing rings 16 abut against the inner wall of the vertical joint 21. The first sealing rings 16 can increase the sealing between the vertical joint 21 and the stepped shaft 111, prevent water leakage, and improve the sealing performance.

[0049] A second sealing ring 24 is fitted inside the transverse connector 22, and the second sealing ring 24 is located inside the elastic interlocking device 23. The externally inserted tube is pressed against the second sealing ring 24, which can prevent water entering the transverse connector 22 from overflowing back and improve the sealing performance.

[0050] The nozzle body 11 has a recessed groove 113 formed at the end away from the stepped shaft 111. A sealing gasket 17 is embedded in the recessed groove 113, and the sealing gasket 17 has two or more closed sealing protrusions 211171 formed on it. During installation, the sealing gasket 17 is placed against the corresponding mounting plate to prevent water in the nozzle body 11 from overflowing outward, and further improves the sealing performance with the external connection plate.

[0051] A cover plate 18 is provided on the opposite side of the sealing gasket 17. The cover plate 18 is fitted onto the screw 15, which is screwed onto the nozzle body 11. During installation, the cover plate 18 and the sealing gasket 17 are located on opposite sides of the external connecting plate. The cover plate 18 facilitates the positioning and installation of the screw 15, and also concentrates the force exerted by the screw 15 on the connecting plate onto the cover plate 18. The cover plate 18 has a large surface area, which allows for a more even distribution of the force on the connecting plate. Alternatively, the cover plate 18 and the sealing gasket 17 can be attached together and installed on the same side of the connecting plate.

[0052] One embodiment of the resilient bite device 23: As shown in Figures 3 and 4, the resilient bite device 23 includes a spring piece 231 and a pressing head 232 inserted into the transverse connector portion 22;

[0053] The transverse joint 22 is formed with a large diameter hole 221, a medium diameter hole 222 and a small diameter hole 223 from the inside to the outside; the spring piece 231 is inserted into the large diameter hole 221; the spring piece 231 is in the shape of a rotating body and has multiple opening slots 2311 formed on the spring piece 231.

[0054] The outer wall of the pressing head 232 has a protrusion 2321 formed therein, which is inserted into the middle diameter hole 222. In use, the pressing head 232 is pressed inward to drive the inner end of the elastic plate to deform outward, and then the external tube is inserted into the elastic plate. Then the pressing head 232 is released, the elastic plate returns to its original position and the inner end is pressed against the outer wall of the tube, thereby locking the tube.

[0055] Another embodiment of the elastic bite device 23: As shown in Figure 5, a snap hole 226 with a small middle and large ends is formed in the transverse joint portion 22.

[0056] The flexible bite device 23 is a hollow rotating body. It has an outer cone 234, an inner cone 235, and multiple slots 233 penetrating the outer cone 234 and inner cone 235. The outer cone 234 is located inside the central hole of the locking hole 226. In use, a tube is inserted into the flexible bite device 23, with the end of the tube abutting against the inner cone 235 and driving the inner cone 235 outwards, thus inserting the tube. If the tube is pulled outwards, the outer cone 234 abuts against the central hole of the locking hole 226, driving the outer cone hole further inwards, which in turn drives the inner cone 235 inwards, thereby clamping the tube more tightly.

[0057] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. An integrated elbow nozzle, comprising a nozzle portion (1) and an elbow head (2), characterized in that: The nozzle part (1) includes a nozzle body (11), on which a stepped shaft (111) is formed, and an annular groove (112) with a right trapezoidal cross section is formed at the step of the stepped shaft (111); the bent head (2) includes an integrally formed vertical joint part (21) and a horizontal joint part (22), the vertical joint part (21) and the horizontal joint part (22) are hollow inside and connected to each other, the vertical joint part (21) is inserted into the small end shaft of the stepped shaft (111) and the two are connected with a clearance fit; The lower inner edge of the vertical connector (21) is formed with a protruding ring (211), and the lower end of the protruding ring (211) is formed with an inner folded ring (212), which is inserted into the annular groove (112). The transverse joint (22) is provided with an elastic bite device (23).

2. The integrated elbow nozzle according to claim 1, characterized in that: The upper end of the vertical joint (21) is formed with a pressure platform (213). The inner diameter of the annular groove (112) is smaller than the outer diameter of the small end shaft of the stepped shaft (111), and the inner end diameter of the inner folded ring (212) is smaller than the outer diameter of the small end shaft of the stepped shaft (111).

3. The integrated elbow nozzle according to claim 1, characterized in that: Multiple first sealing rings (16) are fitted onto the small end of the stepped shaft (111), and the first sealing rings (16) are attached to the inner wall of the vertical joint (21).

4. The integrated elbow nozzle according to claim 1, characterized in that: The transverse joint (22) is fitted with a second sealing ring (24), which is located inside the elastic bite (23).

5. The integrated elbow nozzle according to claim 1, characterized in that: The nozzle body (11) has a groove (113) formed at one end away from the step axis (111), and a sealing gasket (17) is embedded in the groove (113).

6. The integrated elbow nozzle according to claim 5, characterized in that: The sealing gasket (17) has two or more closed sealing protrusions (171).

7. The integrated elbow nozzle according to claim 5, characterized in that: A cover plate (18) is provided on the opposite side of the sealing gasket (17), and the cover plate (18) is fitted onto a screw (15), which is screwed onto the nozzle body (11).

8. The integrated elbow nozzle according to claim 1, characterized in that: The elastic bite device (23) includes a spring piece (231) inserted into the transverse connector (22) and a pressing head (232). The transverse joint (22) is formed with a large diameter hole (221), a medium diameter hole (222) and a small diameter hole (223) from the inside to the outside; the spring piece (231) is inserted into the large diameter hole (221); the spring piece (231) is in the shape of a rotating body, and multiple opening slots (2311) are formed on the spring piece (231). The outer wall of the pressing head (232) is formed with a protrusion (2321), which is inserted into the middle diameter hole (222).

9. The integrated elbow nozzle according to claim 1, characterized in that: The transverse joint (22) has a locking hole (226) formed inside, which is small in the middle and large at both ends. The elastic bite device (23) is a hollow rotating body; the elastic bite device (23) is formed with an outer cone (234), an inner cone (235) and multiple slots (233) penetrating the outer cone (234) and the inner cone (235), and the outer cone (234) is located inside the middle hole of the card hole (226).

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