Dustproof nozzle

Abstract

The dustproof nozzle comprises a spray head, a liquid inlet pipe and a dustproof assembly, the liquid inlet pipe is communicated with the spray head, the dustproof assembly comprises a fixing seat, a telescopic rod, a sealing block, a clamping block and a sleeve, the fixing seat is installed on the spray head, the fixing seat is provided with a first clamping groove, a connecting groove and a second clamping groove, one end of the connecting groove is communicated with the first clamping groove, and the other end of the connecting groove is communicated with the second clamping groove; one end of the telescopic rod penetrates through the fixed seat and the nozzle, one side of the sealing block is mounted on the telescopic rod, and the other side of the sealing block is used for sealing the liquid inlet pipe; the clamping block is installed on the telescopic rod, the clamping block is selectively clamped to the first clamping groove or the second clamping groove, when the clamping block is clamped to the first clamping groove, the sealing block seals the liquid inlet pipe, and when the clamping block is clamped to the second clamping groove, the sealing block is far away from the liquid inlet pipe; the sleeve is used for sealing the liquid outlet end of the nozzle. According to the dustproof nozzle, the telescopic rod drives the clamping block to be selectively contained in the first clamping groove or the second clamping groove, so that the sealing block closes or opens the liquid inlet pipe; the outlet end of the nozzle is closed through the sleeve, so that dust is prevented from entering the nozzle.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, and in particular to a dustproof nozzle. Background Technology

[0002] Currently, nozzles are widely used in industrial production, such as injection molding and hot melt adhesive spraying. However, current nozzles do not have dustproof function, and dust will accumulate inside the nozzle when it is not used for a long time. Utility Model Content

[0003] Therefore, it is necessary to provide a dustproof nozzle to address the above-mentioned problems.

[0004] A dustproof nozzle includes a nozzle head, an inlet pipe, and a dustproof assembly. The inlet pipe is connected to the nozzle head. The dustproof assembly includes a fixed base, a telescopic rod, a sealing block, a locking block, and a sleeve. The fixed base is installed on the nozzle head and has a first locking groove, a connecting groove, and a second locking groove. One end of the connecting groove is connected to the first locking groove, and the other end is connected to the second locking groove. One end of the telescopic rod passes through the fixed base and the nozzle head. One side of the sealing block is installed on the telescopic rod, and the other side is used to seal the inlet pipe. The locking block is installed on the telescopic rod and selectively engages with the first locking groove or the second locking groove. When the locking block engages with the first locking groove, the sealing block seals the inlet pipe. When the locking block engages with the second locking groove, the sealing block moves away from the inlet pipe. The sleeve is used to seal the outlet end of the nozzle head.

[0005] In one embodiment, the dustproof assembly further includes a pin and an elastic element, the pin being inserted into the telescopic rod, one end of the elastic element being connected to the pin, and the other end abutting against the fixing seat.

[0006] In one embodiment, the fixing base includes a base plate, a side plate, and a cover plate. The side plate is connected to the base plate and has a receiving cavity. The first slot, the connecting slot, and the second slot are all located on the side plate. The cover plate covers the end of the side plate away from the base plate. One end of the elastic member abuts against the base plate. The pin and the elastic member are housed in the receiving cavity.

[0007] In one embodiment, the telescopic rod includes a rod body and a handle connected to the rod body, the locking block is installed on the rod body, one end of the rod body is connected to one end of the sealing block, the pin is inserted into the rod body, and the elastic member passes through the rod body.

[0008] In one embodiment, one end of the rod is connected to the eccentric part of the sealing block.

[0009] In one embodiment, the connecting slot is horizontally arranged, and both the first slot and the second slot are vertically arranged; the height of the first slot is higher than that of the second slot.

[0010] In one embodiment, the nozzle includes a support portion, a collection portion, and a liquid outlet portion connected in sequence. The liquid inlet pipe and the fixed base are both connected to the support portion. The sleeve is connected to the liquid outlet portion. The cross-section of the collection portion is an inverted isosceles trapezoid, and the length of the end of the collection portion connected to the support portion is greater than the length of the end of the collection portion connected to the liquid outlet portion.

[0011] In one embodiment, the sleeve is threadedly connected to the liquid outlet.

[0012] In one embodiment, a filter screen is also included, which is installed inside the inlet pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The dustproof nozzle of this utility model uses a telescopic rod to drive the locking block to selectively accommodate the first locking slot or the second locking slot, thereby sealing the sealing block to close or open the liquid inlet pipe; the outlet end of the nozzle is sealed by a sleeve, thereby preventing dust from entering the nozzle; this dustproof nozzle has a compact structure and excellent dustproof effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a dustproof nozzle according to one embodiment of the present invention;

[0016] Figure 2 for Figure 1 Sectional view along line AA;

[0017] Figure 3 for Figure 2 A magnified view of circle B in the center.

[0018] The meanings of the numbers in the attached diagram are as follows:

[0019] 100. Dustproof nozzle;

[0020] 10. Nozzle; 11. Support; 12. Collection section; 13. Liquid outlet; 20. Liquid inlet pipe; 30. Dustproof assembly; 31. Fixing base; 301. First slot; 302. Connecting slot; 303. Second slot; 311. Base plate; 312. Side plate; 313. Cover plate; 314. Receiving cavity; 32. Telescopic rod; 321. Rod body; 322. Handle; 33. Sealing block; 34. Locking block; 35. Sleeve; 36. Pin; 37. Elastic element; 40. Filter screen. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Please refer to Figures 1 to 3 A dustproof nozzle 100 according to one embodiment of the utility model includes a nozzle 10, an inlet pipe 20, and a dustproof assembly 30. The inlet pipe 20 is connected to the nozzle 10. The dustproof assembly 30 includes a fixing base 31, a telescopic rod 32, a sealing block 33, a locking block 34, and a sleeve 35. The fixing base 31 is installed on the nozzle 10 and has a first locking groove 301, a connecting groove 302, and a second locking groove 303. One end of the connecting groove 302 is connected to the first locking groove 301, and the other end is connected to the second locking groove 303. One end of the telescopic rod 32 passes through... The fixed base 31 is connected to the nozzle 10. One side of the sealing block 33 is installed on the telescopic rod 32, and the other side is used to close the liquid inlet pipe 20. The locking block 34 is installed on the telescopic rod 32. The locking block 34 selectively engages with the first locking groove 301 or the second locking groove 303. When the locking block 34 engages with the first locking groove 301, the sealing block 33 closes the liquid inlet pipe 20. When the locking block 34 engages with the second locking groove 303, the sealing block 33 moves away from the liquid inlet pipe 20. The sleeve 35 is used to close the liquid outlet end of the nozzle 10. This dustproof nozzle 100 uses the telescopic rod 32 to drive the locking block 34 to selectively accommodate the first locking groove 301 or the second locking groove 303, thereby causing the sealing block 33 to close or open the liquid inlet pipe 20. The sleeve 35 closes the outlet end of the nozzle 10, thereby preventing dust from entering the nozzle 10.

[0028] like Figure 1 and Figure 2As shown, in this embodiment, the nozzle 10 includes a support portion 11, a collecting portion 12, and a liquid outlet portion 13 connected in sequence. The cross-section of the collecting portion 12 is an inverted isosceles trapezoid, and the length of the end of the collecting portion 12 connected to the support portion 11 is greater than the length of the end of the collecting portion 12 connected to the liquid outlet portion 13. The liquid inlet pipe 20 is connected to the support portion 11.

[0029] like Figures 1 to 3 As shown, the dustproof assembly 30 includes a fixed base 31, a telescopic rod 32, a sealing block 33, a locking block 34, and a sleeve 35. The fixed base 31 is installed on the nozzle 10. Optionally, the fixed base 31 is connected to the support part 11. The fixed base 31 is provided with a first locking groove 301, a connecting groove 302, and a second locking groove 303. One end of the connecting groove 302 is connected to the first locking groove 301, and the other end is connected to the second locking groove 303. One end of the telescopic rod 32 passes through the fixed base 31 and the nozzle 10. One side of the sealing block 33 is installed on the telescopic rod 32, and the other side is used to close the liquid inlet pipe 20. The locking block 34 is installed on the telescopic rod 32. The locking block 34 selectively engages with the first locking groove 301 or the second locking groove 303. When the locking block 34 engages with the first locking groove 301, the sealing block 33 closes the liquid inlet pipe 20. When the locking block 34 engages with the second locking groove 303, the sealing block 34 moves away from the liquid inlet pipe 20. The sleeve 35 is used to close the liquid outlet end of the nozzle 10. Further, the connecting groove 302 is horizontally arranged, and both the first locking groove 301 and the second locking groove 303 are vertically arranged. The height of the first locking groove 301 is higher than that of the second locking groove 303. Therefore, when the locking block 34 engages with the second locking groove 303, the locking block 34 moves away from the liquid inlet pipe 20.

[0030] like Figure 3As shown, the fixing base 31 includes a base plate 311, a side plate 312, and a cover plate 313. The base plate 311 is connected to the support 11. The side plate 312 is connected to the base plate 311 and has a receiving cavity 314. The first slot 301, the connecting slot 302, and the second slot 303 are all located on the side plate 312. The cover plate 313 covers the end of the side plate 312 away from the base plate 311. Furthermore, the cover plate 313 is threadedly connected to the side plate 312. In one embodiment, the telescopic rod 32 includes a rod body 321 and a handle 322 connected to the rod body 321. The locking block 34 is installed on the rod body 321, and one end of the rod body 321 is connected to one end of the sealing block 33. Optionally, one end of the rod body 321 is connected to the eccentric position of the sealing block 33. Since the second locking groove 303 is located on one side of the first locking groove 301, when the locking block 34 engages with the second locking groove 303, the sealing block 33 rotates to one side, so that the sealing block 33 is not below the liquid inlet pipe 20, and the liquid will not directly rush towards the sealing block 33. Figure 1 As shown, the sleeve 35 is connected to the liquid outlet 13 to prevent dust from entering the nozzle 10; optionally, the sleeve 35 is threadedly connected to the liquid outlet 13.

[0031] like Figure 3 As shown, the dustproof assembly 30 further includes a pin 36 and an elastic element 37. The pin 36 is inserted into the telescopic rod 32, and one end of the elastic element 37 is connected to the pin 36, while the other end abuts against the fixing seat 31. Optionally, one end of the elastic element 37 abuts against the base plate portion 311; the pin 36 and the elastic element 37 are housed in the receiving cavity 314; further, the pin 36 is inserted into the rod body portion 321, and the elastic element 37 passes through the rod body portion 321; a hook is provided at one end of the elastic element 37, which engages with the pin 36. This dustproof nozzle 100 also includes a filter screen 40, which is installed inside the liquid inlet pipe 20.

[0032] When the nozzle 10 is not in use, the locking block 34 is housed in the first locking groove 301, and the sealing block 33 closes the liquid inlet pipe 20. The sleeve 35 is fitted onto the liquid outlet section 13 to prevent dust from entering the nozzle 10. When the nozzle 10 needs to be used, the telescopic rod 32 is pressed down to disengage the locking block 34 from the first locking groove 301. Then, the telescopic rod 32 is rotated to slide the locking block 34 into the connecting groove 302 until one end of the connecting groove 302 is reached. Then, the telescopic rod 32 is released, and under the action of the elastic element 37, the locking block 34 is housed in the second locking groove 303. At this time, the sealing block 33 is disengaged from the liquid inlet pipe 20, thereby opening the liquid inlet pipe 20. The sealing block 33 is not below the liquid inlet pipe 20 to prevent liquid from directly hitting the sealing block 33. Then, the sleeve 35 is unscrewed to open the liquid outlet section 13.

[0033] The dustproof nozzle 100 of this utility model uses a telescopic rod 32 to drive the locking block 34 to selectively accommodate the first locking groove 301 or the second locking groove 303, thereby sealing the sealing block 33 to close or open the liquid inlet pipe 20; and seals the outlet end of the nozzle 10 with the sleeve 35 to prevent dust from entering the nozzle 10; the dustproof nozzle 100 has a compact structure and good dustproof effect.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dustproof nozzle, characterized in that, The device includes a nozzle, an inlet pipe, and a dustproof assembly. The inlet pipe connects to the nozzle. The dustproof assembly includes a fixed base, a telescopic rod, a sealing block, a locking block, and a sleeve. The fixed base is installed on the nozzle and has a first locking groove, a connecting groove, and a second locking groove. One end of the connecting groove connects to the first locking groove, and the other end connects to the second locking groove. One end of the telescopic rod passes through the fixed base and the nozzle. One side of the sealing block is installed on the telescopic rod, and the other side is used to seal the inlet pipe. The locking block is installed on the telescopic rod and selectively engages with either the first locking groove or the second locking groove. When the locking block engages with the first locking groove, the sealing block seals the inlet pipe. When the locking block engages with the second locking groove, the sealing block moves away from the inlet pipe. The sleeve is used to seal the outlet end of the nozzle.

2. The dustproof nozzle according to claim 1, characterized in that, The dustproof component also includes a pin and an elastic element. The pin is inserted into the telescopic rod, and one end of the elastic element is connected to the pin, while the other end abuts against the fixed base.

3. The dustproof nozzle according to claim 2, characterized in that, The fixing base includes a base plate, a side plate, and a cover plate. The side plate is connected to the base plate and has a receiving cavity. The first slot, the connecting slot, and the second slot are all located on the side plate. The cover plate covers the end of the side plate away from the base plate. One end of the elastic member abuts against the base plate. The pin and the elastic member are housed in the receiving cavity.

4. The dustproof nozzle according to claim 2, characterized in that, The telescopic rod includes a rod body and a handle connected to the rod body. The locking block is installed on the rod body, and one end of the rod body is connected to one end of the sealing block. The pin is inserted into the rod body, and the elastic element passes through the rod body.

5. The dustproof nozzle according to claim 4, characterized in that, One end of the rod is connected to the eccentric part of the sealing block.

6. The dustproof nozzle according to claim 1, characterized in that, The connecting slot is horizontally arranged, and both the first slot and the second slot are vertically arranged; the height of the first slot is higher than that of the second slot.

7. The dustproof nozzle according to claim 1, characterized in that, The nozzle includes a support part, a collection part, and a liquid outlet part connected in sequence. The liquid inlet pipe and the fixed base are both connected to the support part. The sleeve is connected to the liquid outlet part. The cross-section of the collection part is an inverted isosceles trapezoid. The length of the end of the collection part connected to the support part is greater than the length of the end of the collection part connected to the liquid outlet part.

8. The dustproof nozzle according to claim 7, characterized in that, The sleeve is threadedly connected to the liquid outlet.

9. The dustproof nozzle according to claim 1, characterized in that, It also includes a filter screen, which is installed inside the liquid inlet pipe.

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