Oil nozzle convenient to replace

Abstract

The utility model discloses an oil nozzle convenient to replace, and relates to the technical field of oil nozzles, the oil nozzle convenient to replace comprises a handle, an oil inlet pipe and a fixed frame, the oil inlet pipe is fixedly connected to the end of the handle, the fixed frame is fixedly connected to the bottom of the handle, and a trigger switch is arranged in the fixed frame. Firstly, the movable sleeve is pulled to drive the driving ring to move upwards, at the moment, the clamping part slides towards the outer side of the fixed sleeve to enable the end of the clamping part to be separated from the interior of the positioning groove, the oil nozzle is taken out from the interior of the fixed sleeve, separation of the oil nozzle is completed, and on the contrary, the oil nozzle is installed in the fixed sleeve. It is ensured that the top of the oil nozzle is attached to the bottom of the sealing pipe, the movable sleeve drives the driving ring to move downwards, the clamping part is driven by the driving ring to slide towards the inner side of the fixing sleeve till the inner end of the clamping part is clamped with the interior of the positioning groove, and therefore the oil nozzle is fixed into the fixing sleeve, and installation of the oil nozzle is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of oil nozzles, in particular to an oil nozzle which is easy to replace. Background Art

[0002] The nozzle plays a key role in the grease gun. The structural design of the nozzle can affect the flow rate, flow direction and spray range of the oil, thereby determining the state of the oil when it is discharged. Nozzles of different designs may produce different effects.

[0003] For example, a spinning oil nozzle that is easy to disassemble and assemble is disclosed as CN218262854U, and comprises an oil nozzle seat, an oil nozzle and a locking bolt; the oil nozzle seat is a long rod, and a hollow pipe is arranged inside the oil nozzle seat, and an annular sealing groove is provided on the inner wall of the oil outlet end of the oil nozzle seat, and the sealing groove is recessed on the side wall of the pipe inside the oil nozzle seat, and a sealing ring is detachably arranged in the sealing groove, so that when installing and disassembling the oil nozzle, there is no need to disassemble the oil nozzle seat and the oil delivery hose, which greatly simplifies the disassembly and assembly operation, reduces the disassembly and assembly structure, and does not need to destroy the sealing between the oil nozzle seat and the equipment, and does not need to stick the oil nozzle in advance. When it is not sealed during installation, it can be immediately detected and resealed, which shortens the replacement time and simplifies the operation steps, so that the equipment can be used again immediately after installation is completed, reducing downtime.

[0004] One of the spinning oil nozzles in the above-mentioned comparative document is easy to disassemble and assemble, and the oil nozzle is fixed by screws. In actual operation, given the lubricating properties of the oil body itself, if screws are used to fix the oil nozzle, the oil may penetrate into the screw fixing part, thereby affecting the stability of the screws and posing a potential risk of loosening. Utility Model Content

[0005] The utility model aims to provide an oil nozzle which is easy to replace, so as to solve the problem in the above-mentioned background technology that oil penetrates into the screw fixing part, thereby affecting the stability of the screw and burying the potential risk of loosening.

[0006] To achieve the above object, the utility model provides the following technical solutions: an oil nozzle that is easy to replace, comprising a handle, an oil inlet pipe, and a fixing frame, wherein the oil inlet pipe is fixedly connected to the end of the handle, the bottom of the handle is fixedly connected to the fixing frame, and a trigger switch is arranged inside the fixing frame, and the trigger switch is rotatably connected to the bottom of the handle;

[0007] The end of the handle away from the oil inlet pipe is fixedly connected to a connecting plate, and the side of the connecting plate away from the handle is fixedly connected to the oil delivery pipe, and the end of the oil delivery pipe away from the connecting plate is provided with a quick-release structure for quickly replacing the oil nozzle, the quick-release structure is provided with a fixed sleeve, and a plurality of centrally symmetrically distributed engaging parts are slidably connected inside the lower end of the fixed sleeve, a movable sleeve is slidably connected to the outer side of the fixed sleeve, and the oil nozzle is snap-connected to the bottom of the fixed sleeve.

[0008] Furthermore, a driving ring is fixedly connected to the bottom of the movable sleeve, and the driving ring is slidably connected to the outer side of the lower end of the fixed sleeve, and the inner side of the driving ring is slidably connected to the outer end of the engaging part.

[0009] Furthermore, a compression spring is fixedly connected between the top of the movable sleeve and the bottom of the upper end of the fixed sleeve, a positioning groove is provided on the outer side of the upper end of the oil nozzle, and the inside of the positioning groove is engaged with the inner end of the engaging part.

[0010] Furthermore, a sealing tube is fixedly connected inside the fixed sleeve, and the top of the sealing tube is communicated with the inside of the oil pipeline, and the bottom of the sealing tube and the top of the oil nozzle are fitted together to form a sealing structure.

[0011] Furthermore, a plurality of movement grooves distributed symmetrically with respect to the center are provided on the inner side of the lower end of the fixing sleeve, and the interior of each movement groove is slidably connected to the engaging part.

[0012] Furthermore, the engaging part is provided with a moving rod, and the fixed frame at the inner end of the moving rod is provided with a blocking block, and the blocking block is engaged with the inside of the positioning groove, a tension spring is provided on the outside of the moving rod, and a fixing ring is slidably connected to the outside of the moving rod, and the two ends of the tension spring are respectively fixedly connected to the fixing ring and the inside of the moving groove.

[0013] Furthermore, four protection rods are fixedly connected between the connecting plate and the fixing sleeve, and the four protection rods are centrally symmetrically distributed between the oil pipeline and the fixing sleeve, and the four protection rods are located outside the oil pipeline.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The oil nozzle, which is easy to replace, is provided with a quick-release structure. By controlling the movable sleeve, the oil nozzle can be quickly disassembled and assembled. First, the movable sleeve is pulled to drive the driving ring to move upward. At this time, the engaging part will slide to the outside of the fixed sleeve to separate its end from the inside of the positioning groove. The oil nozzle is taken out from the inside of the fixed sleeve to complete the separation of the oil nozzle. Conversely, the oil nozzle is installed inside the fixed sleeve to ensure that the top of the oil nozzle is fitted with the bottom of the sealing tube. The movable sleeve drives the driving ring to move downward. The driving ring drives the engaging part to slide to the inside of the fixed sleeve until the inner end of the engaging part is engaged with the inside of the positioning groove, thereby fixing the oil nozzle inside the fixed sleeve to complete the installation of the oil nozzle.

[0016] Furthermore, a clamping part is provided. When the driving ring and the clamping part do not interfere with each other, the tension spring drives the fixed ring on the outer side of the moving rod to move through a contraction movement, so that the fixed ring drives the moving rod and the clamping block to slide inside the moving groove, so that the clamping block is away from the center of the fixed sleeve. An arc groove is provided on the inner side of the clamping block. When the clamping block is clamped inside the positioning groove and the oil nozzle is fixed, the clamping block can be completely fitted with the inner side of the positioning groove, thereby increasing the force-bearing area of ​​the clamping block.

[0017] Furthermore, a plurality of protection rods are distributed outside the oil pipeline, and a frame structure is constructed between each protection rod and the connecting plate and the fixing sleeve, so that external pressure cannot directly act on the oil pipeline, so that the oil pipeline is protected inside the frame structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the fixed sleeve of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing sleeve of the utility model;

[0021] Figure 4 This is a schematic diagram of the contraction structure of the compression spring of the utility model;

[0022] Figure 5 This is a schematic diagram of the exploded structure of the clamping parts of the utility model;

[0023] Figure 6 This is a schematic diagram of the oil pipeline structure of the utility model.

[0024] In the figure: 1. handle; 2. oil inlet pipe; 3. fixed frame; 4. trigger switch; 5. connecting plate; 6. oil delivery pipe; 7. fixed sleeve; 8. engaging parts; 801. movement rod; 802. clamping block; 803. tension spring; 9. movable sleeve; 10. driving ring; 11. oil nozzle; 12. positioning groove; 13. sealing tube; 14. compression spring; 15. movement groove; 16. protective rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In a further preferred embodiment of the present invention, Figure 1 - Figure 4 As shown, the end of the handle 1 away from the oil inlet pipe 2 is fixedly connected to a connecting plate 5, and the side of the connecting plate 5 away from the handle 1 is fixedly connected to an oil delivery pipe 6, and the end of the oil delivery pipe 6 away from the connecting plate 5 is provided with a quick-release structure for quickly replacing the oil nozzle, the quick-release structure is provided with a fixed sleeve 7, and the lower end of the fixed sleeve 7 is slidably connected to a plurality of snap-fit ​​parts 8 distributed symmetrically in the center, the outer side of the fixed sleeve 7 is slidably connected to a movable sleeve 9, and the bottom of the fixed sleeve 7 is snap-connected to an oil nozzle 11, the bottom of the movable sleeve 9 is fixedly connected to a driving ring 10, and the driving ring 10 is slidably connected to the outer side of the lower end of the fixed sleeve 7, and The inner side of the driving ring 10 is slidably connected to the outer end of the engaging part 8, a compression spring 14 is fixedly connected between the top of the movable sleeve 9 and the bottom of the upper end of the fixed sleeve 7, a positioning groove 12 is provided on the outer side of the upper end of the oil nozzle 11, and the inside of the positioning groove 12 is engaged with the inner end of the engaging part 8, a sealing tube 13 is fixedly connected to the inside of the fixed sleeve 7, and the top of the sealing tube 13 is communicated with the inside of the oil delivery pipe 6, and the bottom of the sealing tube 13 and the top of the oil nozzle 11 are attached to each other to form a sealing structure, and a plurality of movement grooves 15 distributed symmetrically with the center are provided on the inner side of the lower end of the fixed sleeve 7, and the inside of each movement groove 15 is slidably connected to the engaging part 8;

[0027] First, by pulling the movable sleeve 9, the compression spring 14 is driven to be compressed, so that the movable sleeve 9 slides on the outside of the fixed sleeve 7. This process will drive the drive ring 10 to move upward. At this time, the engaging part 8 will slide to the outside of the fixed sleeve 7, so that its end is separated from the inside of the positioning groove 12. Then, the oil nozzle 11 is taken out from the inside of the fixed sleeve 7 to complete the separation of the oil nozzle 11. Conversely, the movable sleeve 9 is slid upward to separate the drive ring 10 from the outer end of the engaging part 8. The engaging part 8 will slide to the outside of the fixed sleeve 7, and then the oil nozzle 11 is installed into the fixed sleeve 7 to ensure that the oil The top of the nozzle 11 fits with the bottom of the sealing tube 13. At this time, the movable sleeve 9 is loosened, and the compression spring 14 will drive the movable sleeve 9 to move downward, so that the movable sleeve 9 drives the driving ring 10 to move downward, and the inner side of the driving ring 10 will contact the outer end of the engaging part 8 and slide on the outer end of the engaging part 8. The engaging part 8 is driven by the driving ring 10 to slide toward the inside of the fixed sleeve 7 until the inner end of the engaging part 8 is engaged with the inside of the positioning groove 12, thereby fixing the oil nozzle 11 inside the fixed sleeve 7, completing the installation of the oil nozzle 11, and the oil nozzle 11 can be quickly disassembled and assembled by controlling the movable sleeve 9.

[0028] In a further preferred embodiment of the present invention, Figure 5 As shown, the engaging part 8 is provided with a moving rod 801, and a clamping block 802 is provided on the fixed frame at the inner end of the moving rod 801, and the clamping block 802 is clamped with the inside of the positioning groove 12, a tension spring 803 is provided on the outer side of the moving rod 801, and a fixing ring is slidably connected to the outer side of the moving rod 801, and the two ends of the tension spring 803 are respectively fixedly connected to the fixing ring and the inside of the moving groove 15;

[0029] When the driving ring 10 does not interfere with the engaging part 8, the tension spring 803 drives the fixed ring on the outside of the moving rod 801 to move through the contraction movement, so that the fixed ring drives the moving rod 801 and the block 802 to slide inside the moving groove 15, so that the block 802 is away from the center of the fixed sleeve 7. The inner bottom of the driving ring 10 is provided with an inclined surface. When the driving ring 10 and the engaging part 8 do not interfere with each other, the end of the moving rod 801 is located on the outside of the fixed sleeve 7. When the driving ring 10 moves downward and contacts the moving rod 801, the driving ring 10 drives the moving rod 801 to slide inside the moving groove 15 through the inclined surface, so that the block 802 moves toward the center of the fixed sleeve 7. The inner side of the block 802 is provided with an arc groove. When the block 802 is engaged with the inside of the positioning groove 12 and fixes the oil nozzle 11, the block 802 can be completely fitted with the inner side of the positioning groove 12, thereby increasing the force area of ​​the block 802.

[0030] In a further preferred embodiment of the present invention, Figure 6 As shown, four protection rods 16 are fixedly connected between the connecting plate 5 and the fixing sleeve 7, and the four protection rods 16 are centrally symmetrically distributed between the oil pipeline 6 and the fixing sleeve 7, and the four protection rods 16 are located outside the oil pipeline 6;

[0031] A plurality of protection rods 16 are distributed outside the oil pipeline 6, and a frame structure is constructed between each protection rod 16 and the connecting plate 5 and the fixing sleeve 7, so that the external pressure cannot directly act on the oil pipeline 6, so that the oil pipeline 6 is protected inside the frame structure.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil nozzle that is easy to replace, comprising a handle (1), an oil inlet pipe (2), and a fixing frame (3), wherein the oil inlet pipe (2) is fixedly connected to the end of the handle (1), the bottom of the handle (1) is fixedly connected to the fixing frame (3), and a trigger switch (4) is arranged inside the fixing frame (3), and the trigger switch (4) is rotatably connected to the bottom of the handle (1); Features: The end of the handle (1) away from the oil inlet pipe (2) is fixedly connected to a connecting plate (5), and the side of the connecting plate (5) away from the handle (1) is fixedly connected to an oil delivery pipe (6), and the end of the oil delivery pipe (6) away from the connecting plate (5) is provided with a quick-release structure for quickly replacing an oil nozzle, the quick-release structure is provided with a fixed sleeve (7), and the lower end of the fixed sleeve (7) is internally slidably connected to a plurality of centrally symmetrically distributed snap-fit ​​parts (8), the outer side of the fixed sleeve (7) is slidably connected to a movable sleeve (9), and the bottom of the fixed sleeve (7) is snap-fittedly connected to an oil nozzle (11).

2. The oil nozzle that is easy to replace according to claim 1, Features: The bottom of the movable sleeve (9) is fixedly connected with a driving ring (10), and the driving ring (10) is slidably connected to the outer side of the lower end of the fixed sleeve (7), and the inner side of the driving ring (10) is slidably connected to the outer end of the locking part (8).

3. The oil nozzle that is easy to replace according to claim 2, Features: A compression spring (14) is fixedly connected between the top of the movable sleeve (9) and the bottom of the upper end of the fixed sleeve (7); a positioning groove (12) is provided on the outer side of the upper end of the oil nozzle (11), and the interior of the positioning groove (12) is engaged with the inner end of the engaging part (8).

4. The oil nozzle that is easy to replace according to claim 3, Features: The fixed sleeve (7) is fixedly connected with a sealing tube (13) inside, and the top of the sealing tube (13) is communicated with the inside of the oil delivery pipe (6), and the bottom of the sealing tube (13) and the top of the oil nozzle (11) are fitted together to form a sealing structure.

5. The oil nozzle that is easy to replace according to claim 4, Features: A plurality of movement grooves (15) distributed symmetrically with respect to the center are provided on the inner side of the lower end of the fixing sleeve (7), and the interior of each movement groove (15) is slidably connected to the engaging part (8).

6. The easily replaceable oil nozzle according to claim 5, Features: The engaging part (8) is provided with a moving rod (801), and a fixing frame at the inner end of the moving rod (801) is provided with a clamping block (802), and the clamping block (802) is clamped with the inside of the positioning groove (12), a tension spring (803) is provided on the outside of the moving rod (801), and a fixing ring is slidably connected to the outside of the moving rod (801), and two ends of the tension spring (803) are respectively fixedly connected to the fixing ring and the inside of the moving groove (15).

7. The easily replaceable oil nozzle according to claim 1, Features: Four protection rods (16) are fixedly connected between the connecting plate (5) and the fixing sleeve (7), and the four protection rods (16) are centrally symmetrically distributed between the oil pipeline (6) and the fixing sleeve (7), and the four protection rods (16) are located outside the oil pipeline (6).

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