Special tooling for disassembling and installing nozzle base or nozzle

Abstract

The present invention discloses a special tool for disassembling and assembling a nozzle base or a nozzle, wherein a receiving hole and a driving hole are provided on a cylinder, and a first elastic positioning mechanism and a second elastic positioning mechanism are provided on the side wall of the cylinder; a clamping mechanism is rotatably arranged in the receiving hole, a plurality of straight clips are provided on the clamping mechanism, and a driving groove engaged with a driving connecting member is also provided on the clamping mechanism; the driving connecting member cooperates with the driving hole, a first annular groove and a second annular groove are provided on the driving connecting member, and the second elastic positioning mechanism is engaged with the first annular groove or the second annular groove; the outer side surface of the straight clip abuts against the inner wall of the shell, and a clamping space for clamping the nozzle is formed between the inner sides of the plurality of straight clips; and positioning holes engaged with the first elastic positioning mechanism are evenly provided on the side wall of the unloading ring. The present invention realizes the selective disassembly and assembly of the nozzle base or the nozzle, and improves the disassembly and assembly efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco machinery, and in particular to a special tool for disassembling and assembling a nozzle base or a nozzle. Background Art

[0002] The cigarette production process requires strict control of the temperature and humidity of the surrounding environment, so the high-pressure micro-mist system is widely used in conjunction with the building automatic control system to achieve temperature and humidity control. The high-pressure micro-mist nozzle is a key component of the high-pressure micro-mist system. After the water vapor is atomized through the nozzle, it sprays out mist particles, which can quickly absorb heat from the air to complete vaporization and diffusion, thereby achieving the purpose of air humidification and cooling. The nozzle is a vulnerable part. When the nozzle is severely worn, problems such as poor atomization effect, large pressure loss, easy clogging, and even seepage and leakage will occur, which will not achieve the purpose of humidification and cooling; therefore, the worn nozzle ring needs to be replaced in time.

[0003] The nozzle assembly is composed of a base and a nozzle. Due to the tight fit and high precision requirements, the nozzle assembly is easily damaged during disassembly. At present, when the nozzle assembly fails, tools such as screwdrivers and needle-nosed pliers are required to disassemble the deflector and nozzle assembly. The disassembly process is complicated and time-consuming, and the nozzle connection wire is easily broken and scrapped due to central stress overload during the disassembly process, resulting in a waste of resources.

[0004] In some special cases, when the nozzle is damaged, the nozzle base is not damaged. However, in view of the limitations of the prior art, the nozzle can only be further disassembled after the base with the nozzle is removed, and the nozzle cannot be disassembled directly, which reduces the disassembly efficiency and easily causes damage to the base.

[0005] In view of the above reasons, it is particularly important to study a special tool for disassembling and assembling the nozzle base or the nozzle. Summary of the invention

[0006] The purpose of the present invention is to provide a special tool for disassembling and assembling a nozzle base or a nozzle, so as to realize the selective disassembly and assembly of the nozzle base or the nozzle, improve the disassembly and assembly efficiency, and reduce the damage caused during the disassembly and assembly process.

[0007] The present invention provides a special tool for disassembling a nozzle base or a nozzle, which includes:

[0008] A cylinder, wherein a receiving hole and a driving hole which are connected to each other are arranged in the axial direction of the cylinder, and a first elastic positioning mechanism and a second elastic positioning mechanism are arranged on the side wall of the cylinder;

[0009] A clamping mechanism, the clamping mechanism is rotatably disposed in the accommodating hole, the clamping mechanism is provided with a plurality of straight clamping pieces, the plurality of straight clamping pieces are evenly distributed on a circumferential surface, and the clamping mechanism is provided with a driving groove at one end away from the straight clamping pieces;

[0010] A driving connecting member, the driving connecting member cooperates with the driving hole, the driving connecting member is provided with a driving end that cooperates with the driving groove, the driving connecting member is provided with a first annular groove and a second annular groove, and the second elastic positioning mechanism is engaged with the first annular groove or the second annular groove;

[0011] A shell, the shell is arranged in the accommodating hole, the shell is connected to the clamping mechanism, an accommodating space is arranged in the shell, the straight clip is arranged in the accommodating space, and the outer side surface of the straight clip abuts against the inner wall of the accommodating space, and a clamping space for clamping the nozzle is formed between the inner sides of the plurality of straight clips;

[0012] The unloading ring is arranged in the accommodating hole, and a plurality of positioning holes are evenly arranged on the side wall of the unloading ring. The positioning holes cooperate with the first elastic positioning mechanism, and the unloading ring is also provided with a mounting hole for cooperating with the nozzle base.

[0013] The special tool for disassembling and assembling the nozzle base or the nozzle as described above, wherein preferably, the first elastic positioning mechanism comprises a limiting column, a first spring and a first locking bolt;

[0014] A first limiting hole is provided on the side wall of the cylinder, the limiting column is provided in the first limiting hole, the limiting end of the limiting column extends out of the first limiting hole and cooperates with the positioning hole, the two ends of the first spring are respectively abutted against the limiting column and the first locking bolt, and the first locking bolt is fixedly connected to the first limiting hole.

[0015] The special tooling for disassembling and assembling the nozzle base or the nozzle as described above, wherein preferably, the second elastic positioning mechanism comprises a second spring, a second locking bolt and a ball, and the side wall of the cylinder is further provided with a second limiting hole and a third limiting hole, the second limiting hole, the third limiting hole and the driving hole are sequentially connected, the diameter of the second limiting hole is larger than the diameter of the third limiting hole, the ball is arranged in the second limiting hole, and a part of the ball protrudes from the third limiting hole to the driving hole, and is engaged with the first annular groove or the second annular groove;

[0016] Two ends of the second spring are respectively in contact with the ball and the second locking bolt;

[0017] The second locking bolt is fixedly connected to the second limiting hole.

[0018] As described above, the special tooling for disassembling and assembling the nozzle base or the nozzle, wherein preferably, the accommodating hole comprises a first hole and a second hole, the diameter of the first hole is larger than the diameter of the second hole, the unloading ring is arranged in the first hole, the clamping mechanism and the shell are arranged in the second hole, and the first limiting hole is connected to the first hole.

[0019] As described above, in the special tool for disassembling and assembling the nozzle base or the nozzle, preferably, an arc groove is provided on the side wall of the unloading ring.

[0020] As described above, the special tooling for disassembling and assembling the nozzle base or the nozzle, wherein, preferably, the depth of the first hole is greater than the thickness of the unloading ring, and after the positioning hole is matched with the limiting column, a gap is maintained between the unloading ring and the step surface formed by the first hole and the second hole.

[0021] The special tooling for disassembling and assembling the nozzle base or the nozzle as described above, wherein, preferably, further comprises a bearing, and a rotating shaft is also provided on the clamping mechanism, the inner ring of the bearing is fixedly connected to the rotating shaft, and the outer ring of the bearing is fixedly connected to the second hole.

[0022] As described above, the special tooling for disassembling and assembling the nozzle base or the nozzle, wherein preferably, the clamping mechanism also includes a connecting body, the straight-line clamping piece and the rotating shaft are respectively arranged on both sides of the connecting body, the connecting body is provided with an external thread, and the inner wall of the shell is provided with an internal thread, and after the shell is sleeved on the straight-line clamping piece, it is fixedly connected to the connecting body through the cooperation of the external thread and the internal thread.

[0023] The special tooling for disassembling and assembling the nozzle base or the nozzle provided by the present invention realizes the selective disassembly and assembly of the nozzle base or the nozzle, improves the disassembly and assembly efficiency, and also reduces the damage caused to the nozzle during disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0025] Figure 1 is a schematic diagram of the structure of the nozzle assembly;

[0026] Figure 2 This is an exploded view of the nozzle assembly;

[0027] Figure 3 An exploded view (I) of a special tool for disassembling and assembling a nozzle base or a nozzle provided in an embodiment of the present invention;

[0028] Figure 4An exploded view (II) of a special tool for disassembling and assembling a nozzle base or a nozzle provided in an embodiment of the present invention;

[0029] Figure 5 A state diagram of a special tool for disassembling and assembling a nozzle base or a nozzle provided in an embodiment of the present invention when realizing the function of disassembling and assembling the base;

[0030] Figure 6 A state diagram of a special tool for disassembling and assembling a nozzle base or a nozzle provided in an embodiment of the present invention when realizing the function of disassembling and assembling a nozzle;

[0031] Figure 7 It is the structural schematic diagram of the force unloading ring;

[0032] Figure 8 It is the main view of the unloading ring;

[0033] Fig. 9 for Figure 8 The cross-sectional view along the AA direction;

[0034] Fig.10 A schematic diagram of the structure of the clamping mechanism at a viewing angle;

[0035] Fig.11 A diagram showing the structure of the clamping mechanism from another perspective.

[0036] Description of reference numerals:

[0037] 1- Nozzle 2- Base 3- Stud

[0038] 100- cylinder 110- receiving hole 111- first hole

[0039] 112-second hole 120-driving hole 130-first limiting hole

[0040] 140-second limiting hole 200-clamping mechanism 210-straight clip

[0041] 211-arc surface 220-connector 230-rotating shaft

[0042] 240-driving groove 300-unloading ring 310-installation hole

[0043] 320-positioning hole 321-cylindrical surface 322-conical surface

[0044] 330-arc groove 400-housing 500-driving connector

[0045] 510-first annular groove 520-second annular groove 530-driving end

[0046] 600-bearing 700-first elastic positioning mechanism 710-first locking bolt

[0047] 720-first spring 730-limiting column 800-second elastic positioning mechanism

[0048] 810- second locking bolt 820- second spring 830- ball DETAILED DESCRIPTION

[0049] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0050] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprises" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0051] In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When a specific component is described as being connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components but have an intermediate component.

[0052] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0053] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0054] like Figures 1 to 11As shown, the embodiment of the present invention provides a special tool for disassembling and assembling a nozzle base 2 or a nozzle, which includes a barrel 100, a clamping mechanism 200, a driving connection member 500, a shell 400 and a force unloading ring 300; wherein the barrel 100 is provided with a receiving hole 110 and a driving hole 120 which are interconnected in the axial direction, and a first elastic positioning mechanism 700 and a second elastic positioning mechanism 800 are provided on the side wall of the barrel 100; the clamping mechanism 200 is rotatably arranged in the receiving hole 110 In the embodiment, a plurality of straight clips 210 are arranged on the clamping mechanism 200, and the plurality of straight clips 210 are evenly distributed on the circumferential surface. A driving groove 240 is arranged on the clamping mechanism 200 at one end away from the straight clips 210; a driving connecting member 500 cooperates with the driving hole 120, and a driving end 530 cooperating with the driving groove 240 is arranged on the driving connecting member 500. A first annular groove 510 and a second annular groove 520 are arranged on the driving connecting member 500, and a second elastic positioning mechanism 800 is engaged with the first annular groove 510 or the second annular groove 520. In this embodiment, there is a certain interval between the first annular groove 510 and the second annular groove 520, and the first annular groove 510 is arranged between the second annular groove 520 and the driving end 530. An end of the driving connecting member 500 away from the driving end 530 is used to be connected to the driving mechanism; a housing 400 is arranged in the accommodating hole 110, and the housing 400 is connected to the clamping mechanism 200, and an accommodating space is arranged in the housing 400. The straight clips 210 are arranged in the accommodating space, and the outer side surfaces of the straight clips 210 are in contact with the inner wall of the accommodating space, and a clamping space for clamping the nozzle 1 is formed between the inner side surfaces of the plurality of straight clips 210; the unloading ring 300 is arranged in the accommodating hole 110, and a plurality of positioning holes 320 are evenly arranged on the side wall of the unloading ring 300, and the positioning holes 320 cooperate with the first elastic positioning mechanism 700, and the unloading ring 300 is also provided with an installation hole 310 for cooperating with the nozzle base 2.

[0055] like Figure 1 and Figure 2 As shown, the existing high-pressure fine mist nozzle assembly generally includes a base 2 and a nozzle 1, one end of the base 2 is threadedly connected to the nozzle 1, and the other end of the base 2 has a stud 3 for connecting to the device, and the installation or removal of the high-pressure fine mist nozzle assembly is achieved by applying a torque to the base 2. The base 2 is generally a hexagonal column. In this embodiment, in order to cooperate with the base 2, the mounting hole 310 on the unloading ring 300 can also be a hexagonal hole that cooperates with the hexagonal column.

[0056] When the nozzle assembly needs to be disassembled, the barrel 100 in this embodiment can be connected to the driving mechanism, and the other end of the barrel 100 can be connected to the base 2 through the mounting hole 310 on the unloading ring 300. At the same time, the nozzle 1 can pass through the mounting hole 310 and extend into the clamping space formed between the inner sides of each straight clip 210. Among them, the clamping space is a space that is approximately hole-shaped, and its diameter is slightly smaller than the outer diameter of the nozzle 1. When the nozzle 1 is inserted into the clamping space, each straight clip 210 can be squeezed, and the squeezed straight clip 210 will be twisted and tilted at a certain angle, that is, one straight clip 210 is twisted and approached to an adjacent straight clip 210 after being squeezed, and at the same time, some straight clips 210 have a tendency to expand outward in the radial direction after being squeezed, but are blocked by the shell 400. The straight clip 210 will be elastically deformed after being squeezed by the shell 400 and the nozzle 1 at the same time, so that the squeezing force of the straight clip 210 on the nozzle 1 is increased, thereby improving the clamping and fixing ability of the nozzle 1. When the base 2 is removed from the equipment, the straight clip 210 clamps the nozzle 1, so that the entire high-pressure micro-mist nozzle assembly will not fall off the disassembly tool.

[0057] During the disassembly process, the driving connection 500 can be controlled by the driving mechanism to drive the cylinder 100 to rotate, and the cylinder 100 can drive the unloading ring 300 to rotate synchronously, so that the base 2 can be driven to rotate through the unloading ring 300 to achieve the disassembly of the base 2. Since the nozzle 1 is fixed on the base 2, the base 2 and the nozzle 1 can be removed as a whole at the same time when the base 2 is removed.

[0058] Conversely, when it is necessary to install the nozzle assembly on the device, the barrel 100 can be driven to rotate in the opposite direction so that the stud 3 on the base 2 is gradually tightened on the device. When the preset torque value is reached during the installation of the base 2, the base 2 cannot continue to rotate, while the barrel 100 is still rotated by the driving mechanism at this time, and the unloading ring 300 also has a tendency to rotate relative to the base 2; since the unloading ring 300 is fixedly connected to the base 2 through the mounting hole 310, the unloading ring 300 is constrained by the base 2 and cannot rotate. At this time, a torque is generated between the rotating barrel 100 and the fixed unloading ring 300, so that the part of the first elastic positioning mechanism 700 that cooperates with the positioning hole 320 is moved out of the positioning hole 320 under the action of the above-mentioned torque, so that the first elastic positioning mechanism 700 is The first elastic positioning mechanism 700 retracts slightly, and the cylinder 100 can continue to rotate relative to the unloading ring 300. When the first elastic positioning mechanism 700 reaches the next positioning hole 320, the first elastic positioning mechanism 700 can cooperate with the positioning hole 320 again. At the same time, the first elastic positioning mechanism 700 will hit the edge of the positioning hole 320, and can transmit the impact generated by the impact to the operator, and make a sound of impact. The operator can clearly judge that the base 2 has been installed through the impact and sound, and stop the operation of the driving mechanism. Of course, since the driving mechanism drives the cylinder 100 to rotate at a high speed, when the operator realizes that the preset torque has been reached, the first elastic positioning mechanism 700 may have been matched and separated with multiple positioning holes 320, and can make multiple impact sounds, so that the operator can accurately determine that the base 2 has reached the preset torque. In addition, through the cooperation between the first elastic positioning mechanism 700 and the unloading ring 300, the torque from the cylinder 100 is released when the preset torque is reached, which can avoid the unloading ring 300 and the cylinder 100 from getting stuck when the preset torque is reached, causing the drive mechanism to stall and burn out.

[0059] In addition, when the nozzle assembly is installed, when the nozzle assembly reaches a preset torque, the base 2 will no longer rotate, while the barrel 100 will continue to rotate. If the clamping mechanism 200 is fixedly connected to the barrel 100, the clamping mechanism 200 will rotate synchronously with the barrel 100. Since the straight clip 210 on the clamping mechanism 200 is clamped on the nozzle 1, when the clamping mechanism 200 rotates, the straight clip 210 will have continuous sliding friction with the nozzle 1, causing accelerated wear of the nozzle 1 and reducing the service life of the nozzle 1. For this reason, in this embodiment, the clamping mechanism 200 is rotatably arranged in the receiving hole 110 of the barrel 100, that is, the clamping mechanism 200 and the barrel 100 can rotate relative to each other, that is, when the barrel 100 rotates, the clamping mechanism 200 is kept motionless by the large static friction between the nozzle 1 and it, so that the wear of the nozzle 1 caused by the straight clip 210 can be completely avoided, and the service life of the nozzle 1 is extended.

[0060] It should be noted that the above description is about the operation of disassembling or installing the nozzle base 2. Since the nozzle 1 is fixed on the base 2, when disassembling or installing the base 2, the base 2 and the nozzle 1 can be disassembled as a whole. In the process of disassembling or installing the base 2, the first annular groove 510 is always engaged with the second elastic positioning mechanism 800. Figure 5 As shown, a distance is maintained between the driving end 530 and the driving groove 240, so that the cylinder 100 and the clamping mechanism 200 can achieve relative rotation.

[0061] When only the nozzle 1 needs to be disassembled, the unloading ring 300 can be removed from the special tooling, that is, the connection between the unloading ring 300 and the base 2 is not needed, but the nozzle 1 is directly inserted into the clamping space for clamping the nozzle 1 formed between the inner sides of the plurality of straight clips 210, and the nozzle 1 is clamped by the cooperation of the straight clips 210 and the housing 400. Then, the driving connector 500 can be inserted into the driving hole 120, and the second annular groove 520 is engaged with the second elastic positioning mechanism 800, as shown in FIG. Figure 6 As shown, the driving end 530 is inserted into the driving groove 240 on the clamping mechanism 200, thereby realizing the relative fixation of the barrel 100 and the clamping mechanism 200. When the driving connecting member 500 drives the barrel 100 to rotate, the clamping mechanism 200 and the barrel 100 can be rotated synchronously, thereby driving the nozzle 1 to rotate synchronously, realizing the disassembly and assembly of the nozzle 1 on the base 2. In order to ensure the reliability of the above-mentioned driving end 530 and the driving groove 240, the driving groove 240 can be a cross-shaped groove, and the driving end 530 is a cross-shaped protrusion structure.

[0062] Therefore, the special tooling provided in this embodiment can realize the disassembly of the nozzle 1 by synchronously rotating the clamping mechanism 200, the driving connection member 500 and the barrel 100 when the base 2 is not damaged but the nozzle 1 is damaged, without disassembling the base 2; and when the base 2 is damaged, the base 2 can be disassembled by the cooperation of the unloading ring 300, the clamping mechanism 200 and the barrel 100. Therefore, by progressively adjusting the driving connection member 500 in the axial direction, the selective disassembly and assembly of the nozzle base 2 or the nozzle 1 is realized, which improves the disassembly and assembly efficiency and reduces the damage caused during the disassembly and assembly process.

[0063] The driving connector 500 may be a prism with a polygonal cross section, a hexagonal prism in this embodiment, and the driving hole 120 may be a hole with a regular hexagonal cross section that matches the hexagonal prism, and the hexagonal prism may be interference-fitted with the driving hole 120. The driving mechanism that controls the driving connector 500 may be an existing electric tool, specifically an electric tightening machine, an electric torque wrench, etc., which is not limited in this embodiment.

[0064] Among them, the straight clip 210 can be made of metal material, such as copper sheet, iron sheet, steel sheet, etc. In this embodiment, in order to achieve a certain elasticity of the straight clip 210 so as to clamp the nozzle 1 through its own elastic deformation, while ensuring that the straight clip 210 has a certain strength and will not wear and break after long-term use, the material of the straight clip 210 is preferably copper sheet.

[0065] Specifically, the first elastic positioning mechanism 700 includes a limiting column 730, a first spring 720 and a first locking bolt 710; a first limiting hole 130 is provided on the side wall of the cylinder 100, and the limiting column 730 is arranged in the first limiting hole 130. After the limiting end of the limiting column 730 extends out of the first limiting hole 130, it cooperates with the positioning hole 320 on the unloading ring 300, and the two ends of the first spring 720 are respectively abutted against the limiting column 730 and the first locking bolt 710, and the first locking bolt 710 is fixedly connected to the first limiting hole 130.

[0066] After the positioning hole 320 on the unloading ring 300 is aligned with the limiting column 730, the limiting end of the limiting column 730 can be pushed into the positioning hole 320 by the elastic force of the spring, thereby positioning the unloading ring 300 in the cylinder 100 so that the unloading ring 300 can rotate with the cylinder 100.

[0067] In the process of installing the nozzle assembly to the equipment, when the tightening of the nozzle assembly has reached the preset torque, the unloading ring 300 is constrained by the nozzle base 2 and no longer rotates. At this time, as the barrel 100 continues to rotate, a torsion force is generated between the barrel 100 and the unloading ring 300, and the torsion force acts on the limit column 730, and the torsion force will generate a component force in the axial direction of the limit column 730 to push the limit column 730 out of the positioning hole 320. When the limit column 730 is completely out of the positioning hole 320, the limit column 730 is acted upon by the spring to engage with the side wall of the unloading ring 300 except the positioning hole 320. Partially maintain contact, and as the cylinder 100 rotates, the limiting end of the limiting post 730 will slide on the side wall of the unloading ring 300 until the limiting post 730 reaches the next positioning hole 320, at which time the limiting end of the limiting post 730 can be re-matched with the current positioning hole 320, and the limiting post 730 will collide with the current positioning hole 320, giving the operator a vibration touch and a collision sound, thereby reminding the operator that the nozzle assembly has been installed; at the same time, the above-mentioned matching method of the limiting post 730 and the positioning hole 320 can realize automatic unloading when the preset torque is reached, thereby avoiding the problem of sticking.

[0068] The first limiting hole 130 is a tapered hole, the limiting column 730 is a tapered column matched with the tapered hole, and the end surface of the limiting column 730 is a spherical surface.

[0069] The above-mentioned limit column 730 is a conical column, which means that the diameter of the limit column 730 gradually decreases in the direction of the limit end. When the limit column 730 is matched with the first limit hole 130, the limit column 730 can be prevented from automatically falling off from the first limit hole 130; and by setting the end face of the limit column 730 as a spherical surface, when a torque is generated between the unloading ring 300 and the cylinder 100, it is convenient to generate a component force to push the limit column 730 after the inner wall of the positioning hole 320 contacts the spherical surface, thereby avoiding jamming between the positioning hole 320 and the limit column 730.

[0070] Further, if Fig. 9 As shown, the positioning hole 320 includes a conical surface 322 and a cylindrical surface 321, and the conical surface 322 and the cylindrical surface 321 are two opposite surfaces in the positioning hole 320, and the conical surface 322 and the cylindrical surface 321 are both arranged in the rotation direction of the unloading ring 300, wherein the conical surface 322 refers to the inner surface in the positioning hole 320 that forms an acute angle with the axial direction, and the cylindrical surface 321 refers to the inner surface in the positioning hole 320 that is parallel to its axial direction.

[0071] When the nozzle 1 needs to be disassembled, the cylinder 100 drives the unloading ring 300 to rotate through the limiting column 730. At this time, the limiting column 730 is always in contact with the cylindrical surface 321 in the positioning hole 320, so as to generate a tangential force on the side wall of the positioning hole 320 that can drive the unloading ring 300 to rotate, and no radial component force of the unloading ring 300 will be generated, thereby ensuring that the unloading ring 300 can rotate reliably and realizing the disassembly of the nozzle 1.

[0072] When the nozzle 1 needs to be installed, the barrel 100 drives the unloading ring 300 to rotate through the limiting column 730. At this time, the spherical surface of the limiting column 730 is always in contact with the conical surface 322 in the positioning hole 320. At this time, the spherical surface of the limiting column 730 can generate a tangential force on the conical surface 322 to drive the unloading ring 300 to rotate, and can also generate a radial force to push the limiting column 730 away from the unloading ring 300. When the base 2 of the nozzle 1 does not reach the preset torque, the tangential force can always drive the unloading ring 300 to rotate, and the limiting column 730 will not be pushed out of the positioning hole 320 by the radial force; when the base 2 of the nozzle 1 reaches the preset torque, the unloading ring 300 no longer rotates, and the radial force can push the limiting column 730 out to achieve unloading.

[0073] Further, the second elastic positioning mechanism 800 specifically includes a second spring 820, a second locking bolt 810 and a ball 830, and the second spring 820, the second locking bolt 810 and the ball 830 form the second elastic positioning mechanism 800, and the side wall of the cylinder 100 is also provided with a second limiting hole 140 and a third limiting hole, and the second limiting hole 140, the third limiting hole and the driving hole 120 are connected in sequence, wherein the second limiting hole 140 and the third limiting hole are coaxial, and both Perpendicular to the axis of the third limiting hole, the diameter of the second limiting hole 140 is larger than the diameter of the third limiting hole, the ball 830 is arranged in the second limiting hole 140, and part of the ball 830 protrudes from the third limiting hole to the driving hole 120, and is snap-fitted with the first annular groove 510 or the second annular groove 520; the two ends of the second spring 820 are respectively abutted against the ball 830 and the second locking bolt 810; the second locking bolt 810 is fixedly connected to the second limiting hole 140.

[0074] During the process of inserting the driving connector 500 into the driving hole 120, when the first annular groove 510 or the second annular groove 520 has not reached the position aligned with the ball 830, the ball 830 is squeezed back into the second limiting hole 140 by the side wall of the driving connector 500. When the first annular groove 510 or the second annular groove 520 reaches the position aligned with the ball 830, the ball 830 can be clamped into the annular groove under the action of the second spring 820, thereby realizing the clamping limit of the driving connector 500.

[0075] Further, if Figure 4 As shown, the accommodating hole 110 includes a first hole 111 and a second hole 112, the diameter of the first hole 111 is larger than the diameter of the second hole 112, the unloading ring 300 is arranged in the first hole 111, the clamping mechanism 200 and the shell 400 are arranged in the second hole 112, and the first limiting hole 130 is connected to the first hole 111.

[0076] Among them, Figures 5 to 8 As shown, an arc groove 330 is provided on the side wall of the unloading ring 300, and the arc groove 330 surrounds the side wall of the unloading ring 300. The limiting end of the limiting column 730 is always located in the arc groove 330, thereby preventing the unloading ring 300 from being separated from the first hole 111 after the limiting end moves out of the positioning hole 320.

[0077] Furthermore, the depth of the first hole 111 is greater than the thickness of the unloading ring 300 . After the positioning hole 320 cooperates with the limiting column 730 , a gap is maintained between the unloading ring 300 and the step surface formed by the first hole 111 and the second hole 112 .

[0078] When the nozzle assembly is installed to a preset torque, the continued rotation of the barrel 100 will cause the limit post 730 to continue to engage and disengage with the multiple positioning holes 320 until the driving mechanism stops; and long-term collision, engagement or separation between the limit post 730 and the positioning hole 320 will cause accelerated wear of the positioning hole 320, thereby causing the positioning hole 320 to be unable to maintain receiving sufficient tangential force to drive the unloading ring 300 to rotate. In order to reduce the wear on the positioning hole 320, when the nozzle assembly is installed to reach a preset torque, the operator can apply a certain thrust to the barrel 100 in the direction of the nozzle assembly when hearing the first or second sound produced by the limit column 730 colliding with the positioning hole 320. When the limit column 730 rotates with the barrel 100 and contacts a portion outside the positioning hole 320, the barrel 100 is acted upon by the thrust and moves axially relative to the unloading ring 300, and the moving distance is less than or equal to the above-mentioned gap, thereby causing the limit column 730 to be axially misaligned with the positioning hole 320 relative to the unloading ring 300, so that the limit column 730 no longer engages or separates with the subsequent positioning hole 320 as the barrel 100 rotates until the drive mechanism stops; thereby reducing the number of times the limit column 730 engages with the positioning hole 320, effectively reducing the wear on the positioning hole 320 and extending the service life.

[0079] Furthermore, the disassembly and assembly tool also includes a bearing 600 . A rotating shaft 230 is also provided on the clamping mechanism 200 . The inner ring of the bearing 600 is fixedly connected to the rotating shaft 230 , and the outer ring of the bearing 600 is fixedly connected to the second hole 112 .

[0080] The inner ring of the bearing 600 and the rotating shaft 230 may be interference fit, and the outer ring of the bearing 600 and the cylinder 100 may also be interference fit. The bearing 600 can support the clamping mechanism 200 and the housing 400 to prevent the clamping mechanism 200 from shaking.

[0081] Among them, the clamping mechanism 200 is connected to the cylinder 100 through the bearing 600, which can facilitate the relative rotation of the clamping mechanism 200 relative to the cylinder 100. That is, when the cylinder 100 rotates, the clamping mechanism 200 can be kept stationary by the action of the bearing 600 and the base 2. At the same time, the bearing 600 can support the clamping mechanism 200 to ensure its stability during operation.

[0082] Furthermore, in order to ensure the reliability of the connection between the shell 400 and the clamping mechanism 200, the clamping mechanism 200 also includes a connecting body 220, and the straight clamp 210 and the rotating shaft 230 are respectively arranged on both sides of the connecting body 220. The connecting body 220 is provided with an external thread, and the inner wall of the shell 400 is provided with an internal thread. After the shell 400 is sleeved on the straight clamp 210, it is fixedly connected to the connecting body 220 through the cooperation of the external thread and the internal thread.

[0083] The special tooling for disassembling and assembling the nozzle base or the nozzle provided in the embodiment of the present invention realizes the selective disassembly and assembly of the nozzle base or the nozzle, improves the disassembly and assembly efficiency, and also reduces the damage caused to the nozzle during disassembly and assembly.

[0084] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0085] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A special tool for disassembling and assembling a nozzle base or a nozzle, characterized in that: include: A cylinder (100), wherein the cylinder (100) is provided with a receiving hole (110) and a driving hole (120) which are connected to each other in the axial direction, and a first elastic positioning mechanism (700) and a second elastic positioning mechanism (800) are provided on the side wall of the cylinder (100); A clamping mechanism (200), the clamping mechanism (200) being rotatably disposed in the accommodating hole (110), the clamping mechanism (200) being provided with a plurality of straight-moving clamping pieces (210), the plurality of straight-moving clamping pieces (210) being evenly distributed on a circumferential surface, and the clamping mechanism (200) being provided with a driving groove (240) at one end away from the straight-moving clamping pieces (210); A driving connecting member (500), wherein the driving connecting member (500) cooperates with the driving hole (120), the driving connecting member (500) is provided with a driving end (530) that cooperates with the driving groove (240), the driving connecting member (500) is provided with a first annular groove (510) and a second annular groove (520), and the second elastic positioning mechanism (800) is engaged with the first annular groove (510) or the second annular groove (520); A shell (400), the shell (400) being arranged in the accommodating hole (110), the shell (400) being connected to the clamping mechanism (200), the shell (400) being provided with an accommodating space, the straight clips (210) being arranged in the accommodating space, the outer side surface of the straight clips (210) being in contact with the inner wall of the accommodating space, and a clamping space for clamping the nozzle (1) being formed between the inner side surfaces of a plurality of the straight clips (210); A force unloading ring (300), the force unloading ring (300) being arranged in the accommodating hole (110), a plurality of positioning holes (320) being evenly arranged on the side wall of the force unloading ring (300), the positioning holes (320) cooperating with the first elastic positioning mechanism (700), and the force unloading ring (300) also being provided with a mounting hole (310) for cooperating with the nozzle base (2); The first elastic positioning mechanism (700) comprises a limiting column (730), a first spring (720) and a first locking bolt (710); A first limiting hole (130) is provided on the side wall of the cylinder (100), the limiting column (730) is arranged in the first limiting hole (130), the limiting end of the limiting column (730) extends out of the first limiting hole (130) and cooperates with the positioning hole (320), the two ends of the first spring (720) are respectively in contact with the limiting column (730) and the first locking bolt (710), and the first locking bolt (710) is fixedly connected to the first limiting hole (130); The second elastic positioning mechanism (800) comprises a second spring (820), a second locking bolt (810) and a ball (830). A second limiting hole (140) and a third limiting hole are also provided on the side wall of the cylinder (100). The second limiting hole (140), the third limiting hole and the driving hole (120) are connected in sequence. The diameter of the second limiting hole (140) is larger than the diameter of the third limiting hole. The ball (830) is arranged in the second limiting hole (140), and a part of the ball (830) protrudes from the third limiting hole to the driving hole (120) and is engaged with the first annular groove (510) or the second annular groove (520). Two ends of the second spring (820) are respectively in contact with the ball (830) and the second locking bolt (810); The second locking bolt (810) is fixedly connected to the second limiting hole (140).

2. The special tool for disassembling and assembling the nozzle base (2) or the nozzle according to claim 1, characterized in that: The accommodating hole (110) comprises a first hole (111) and a second hole (112); the diameter of the first hole (111) is greater than the diameter of the second hole (112); the unloading ring (300) is arranged in the first hole (111); the clamping mechanism (200) and the housing (400) are arranged in the second hole (112); and the first limiting hole (130) is connected to the first hole (111).

3. The special tool for disassembling and assembling the nozzle base (2) or the nozzle according to claim 2, characterized in that: An arc-shaped groove (330) is provided on the side wall of the unloading ring (300).

4. The special tool for disassembling and assembling the nozzle base (2) or the nozzle according to claim 3, characterized in that: The depth of the first hole (111) is greater than the thickness of the unloading ring (300), and after the positioning hole (320) is matched with the limiting column (730), a gap is maintained between the unloading ring (300) and the step surface formed by the first hole (111) and the second hole (112).

5. The special tool for disassembling and assembling the nozzle base (2) or the nozzle according to claim 4, characterized in that: It also includes a bearing (600), and a rotating shaft (230) is also provided on the clamping mechanism (200). The inner ring of the bearing (600) is fixedly connected to the rotating shaft (230), and the outer ring of the bearing (600) is fixedly connected to the second hole (112).

6. The special tool for disassembling and assembling the nozzle base (2) or the nozzle according to claim 5, characterized in that: The clamping mechanism (200) further comprises a connecting body (220), the straight-moving clamping piece (210) and the rotating shaft (230) are respectively arranged on two sides of the connecting body (220), the connecting body (220) is provided with an external thread, and the inner wall of the shell (400) is provided with an internal thread. After the shell (400) is sleeved on the straight-moving clamping piece (210), it is fixedly connected to the connecting body (220) through the cooperation of the external thread and the internal thread.

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