CN111283609A - Special tool for disassembling and assembling nozzle base or nozzle - Google Patents

Abstract

The invention discloses a special tool for disassembling and assembling a nozzle base or a nozzle, wherein a cylinder body is provided with a containing hole and a driving hole, and the side wall of the cylinder body is provided with a first elastic positioning mechanism and a second elastic positioning mechanism; the clamping mechanism is rotatably arranged in the accommodating hole, a plurality of straight clamping pieces are arranged on the clamping mechanism, and a driving groove clamped with the driving connecting piece is also arranged on the clamping mechanism; the driving connecting piece is matched with the driving hole, a first annular groove and a second annular groove are formed in the driving connecting piece, and the second elastic positioning mechanism is in clamping fit with the first annular groove or the second annular groove; the outer side surfaces of the straight clips are abutted against the inner wall of the shell, and clamping spaces for clamping the nozzles are formed among the inner side surfaces of the straight clips; the side wall of the force unloading ring is uniformly provided with positioning holes matched with the first elastic positioning mechanism. The invention realizes the selective disassembly and assembly of the nozzle base or the nozzle and improves the disassembly and assembly efficiency.

Description

Special tool for disassembling and assembling nozzle base or nozzle

Technical Field

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

Background

The cigarette production process requires strict control of the temperature and humidity of the surrounding environment, so that the temperature and humidity can be regulated and controlled by widely adopting a high-pressure micro-fog system and matching with a building automatic control system. The high-pressure micro-mist nozzle is a key component of a high-pressure micro-mist system, and water vapor is atomized by the nozzle and then sprays mist particles, so that the mist particles can quickly absorb heat from air to complete vaporization and diffusion, and the purposes of air humidification and cooling are fulfilled. The nozzle is a vulnerable part, when the nozzle is seriously worn, the problems of poor atomization effect, large pressure loss, easy blockage and the like can occur, even the phenomena of water seepage and water leakage occur, and the aim of humidification and temperature reduction can not be fulfilled; the worn nozzle ring therefore needs to be replaced in a timely manner.

The nozzle assembly is composed of a base, a nozzle and the like, and is easy to damage during disassembly due to tight matching and high precision requirement. At present, after a nozzle assembly breaks down, tools such as a screwdriver and a nipper plier need to be adopted to disassemble a flow guide cover and the nozzle assembly, the disassembly process is complicated and time-consuming, and the nozzle connecting wire is easy to break and scrap due to overload of central stress in the disassembly process, so that resource waste is caused.

And under some special circumstances, when the nozzle damages, the nozzle base does not damage, but in view of the limitation of prior art, can only carry out further dismantlement to the nozzle after dismantling the base that has the nozzle, and can not directly dismantle the nozzle, reduced the dismantlement efficiency, also easily caused the damage of base simultaneously.

In view of the above, it is important to develop a special tool for assembling and disassembling the nozzle base or the nozzle.

Disclosure of Invention

The invention aims to provide a special tool for disassembling and assembling a nozzle base or a nozzle, so that the nozzle base or the nozzle can be selectively disassembled and assembled, the disassembling and assembling efficiency is improved, and the damage caused in the disassembling and assembling process is reduced.

The invention provides a special tool for disassembling and assembling a nozzle base or a nozzle, which comprises:

the device comprises a barrel, a first elastic positioning mechanism and a second elastic positioning mechanism, wherein a containing hole and a driving hole which are communicated with each other are formed in the axial direction of the barrel;

the clamping mechanism is rotatably arranged in the accommodating hole and is provided with a plurality of straight clamping pieces, the straight clamping pieces are uniformly distributed on the circumferential surface, and one end of the clamping mechanism, which is far away from the straight clamping pieces, is provided with a driving groove;

the driving connecting piece is matched with the driving hole, a driving end matched with the driving groove is arranged on the driving connecting piece, a first annular groove and a second annular groove are arranged on the driving connecting piece, and the second elastic positioning mechanism is in clamping fit with the first annular groove or the second annular groove;

the shell is arranged in the accommodating hole, the shell is connected with the clamping mechanism, an accommodating space is arranged in the shell, the straight clamping pieces are arranged in the accommodating space, the outer side surfaces of the straight clamping pieces are abutted to the inner wall of the accommodating space, and a clamping space for clamping the nozzle is formed among the inner side surfaces of the straight clamping pieces;

the force unloading ring is arranged in the accommodating hole, a plurality of positioning holes are uniformly formed in the side wall of the force unloading ring, the positioning holes are matched with the first elastic positioning mechanisms, and mounting holes matched with the nozzle base are formed in the force unloading ring.

The special tool for disassembling and assembling the nozzle base or the nozzle is provided, wherein preferably, the first elastic positioning mechanism comprises a limiting column, a first spring and a first locking bolt;

the side wall of the barrel is provided with a first limiting hole, the limiting column is arranged in the first limiting hole, the limiting end of the limiting column extends out of the first limiting hole and then is matched with the positioning hole, 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 with the first limiting hole.

The special tool for disassembling and assembling the nozzle base or the nozzle preferably comprises a second spring, a second locking bolt and a ball, wherein a second limiting hole and a third limiting hole are further formed in the side wall of the cylinder body, the second limiting hole, the third limiting hole and the driving hole are sequentially communicated, the diameter of the second limiting hole is larger than that of the third limiting hole, the ball is arranged in the second limiting hole, and part of the ball protrudes from the third limiting hole into the driving hole and is in clamping fit with the first annular groove or the second annular groove;

two ends of the second spring are respectively abutted against the ball and the second locking bolt;

the second locking bolt is fixedly connected with the second limiting hole.

The special tool for dismounting and mounting the nozzle base or the nozzle is preferably configured such that the accommodating hole includes a first hole and a second hole, a diameter of the first hole is larger than a diameter of the second hole, the force-releasing ring is disposed in the first hole, the clamping mechanism and the housing are disposed in the second hole, and the first limiting hole is communicated with the first hole.

The special tool for disassembling and assembling the nozzle base or the nozzle is characterized in that the side wall of the force unloading ring is provided with an arc-shaped groove.

The special tool for dismounting the nozzle base or the nozzle is characterized in that the depth of the first hole is greater than the thickness of the force-releasing ring, and after the positioning hole is matched with the limiting column, a gap is kept between the force-releasing ring and a step surface formed by the first hole and the second hole.

The special tool for disassembling and assembling the nozzle base or the nozzle preferably further comprises a bearing, a rotating shaft is further arranged on the clamping mechanism, an inner ring of the bearing is fixedly connected with the rotating shaft, and an outer ring of the bearing is fixedly connected with the second hole.

The special tool for disassembling and assembling the nozzle base or the nozzle preferably further comprises a connector, the straight clamping piece and the rotating shaft are respectively arranged on two sides of the connector, an external thread is arranged on the connector, an internal thread is arranged on the inner wall of the shell, and the shell is sleeved on the straight clamping piece and then fixedly connected with the connector through the matching of the external thread and the internal thread.

The special tool for disassembling and assembling the nozzle base or the nozzle provided by the invention realizes the selective disassembly and assembly of the nozzle base or the nozzle, improves the disassembly and assembly efficiency, and simultaneously reduces the damage to the nozzle when the nozzle is disassembled and assembled.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a nozzle assembly;

FIG. 2 is an exploded view of the nozzle assembly;

fig. 3 is an exploded view (one) of a special tool for disassembling and assembling a nozzle base or a nozzle according to an embodiment of the present invention;

fig. 4 is an exploded view (ii) of the special tool for disassembling and assembling the nozzle base or the nozzle according to the embodiment of the present invention;

fig. 5 is a state diagram of the special tool for disassembling and assembling the nozzle base or the nozzle according to the embodiment of the present invention when the function of disassembling and assembling the base is realized;

fig. 6 is a state diagram of the special tool for disassembling and assembling the nozzle base or the nozzle according to the embodiment of the present invention when the function of disassembling and assembling the nozzle is realized;

FIG. 7 is a schematic structural view of a force relief ring;

FIG. 8 is a front view of the force relief ring;

FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;

FIG. 10 is a schematic view of the clamping mechanism at one perspective;

fig. 11 is a view of the clamping mechanism from another perspective.

Description of reference numerals:

1-nozzle 2-base 3-stud

100-cylinder 110-containing hole 111-first hole

112-second hole 120-drive hole 130-first limit hole

140-second limit hole 200-clamping mechanism 210-straight clip

211-arc surface 220-connecting body 230-rotating shaft

240-driving groove 300-force-releasing ring 310-mounting hole

320-positioning hole 321-cylindrical surface 322-conical surface

330-arc slot 400-housing 500-drive connection

510-first annular groove 520-second annular groove 530-drive end

600-bearing 700-first elastic positioning mechanism 710-first locking bolt

720-first spring 730-spacing column 800-second elastic positioning mechanism

810-second locking bolt 820-second spring 830-ball

Detailed Description

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 disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

As used in this disclosure, "first", "second": and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

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 intervening components between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without having an intervening component, or may be directly connected to the other components without having an intervening component.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

As shown in fig. 1 to 11, an embodiment of the present invention provides a special tool for disassembling and assembling a nozzle base 2 or a nozzle, which includes a cylinder 100, a clamping mechanism 200, a driving connection member 500, a housing 400, and a force-releasing ring 300; wherein, the axial of the cylinder 100 is provided with a containing hole 110 and a driving hole 120 which are communicated with each other, and the side wall of the cylinder 100 is provided with a first elastic positioning mechanism 700 and a second elastic positioning mechanism 800; the clamping mechanism 200 is rotatably arranged in the accommodating hole 110, a plurality of straight clamping pieces 210 are arranged on the clamping mechanism 200, the plurality of straight clamping pieces 210 are uniformly distributed on the circumferential surface, and a driving groove 240 is arranged at one end of the clamping mechanism 200 far away from the straight clamping pieces 210; the driving connecting piece 500 is matched with the driving hole 120, the driving connecting piece 500 is provided with a driving end 530 matched with the driving groove 240, the driving connecting piece 500 is provided with a first annular groove 510 and a second annular groove 520, the second elastic positioning mechanism 800 is clamped and matched with the first annular groove 510 or the second annular groove 520, in the embodiment, a certain interval is formed between the first annular groove 510 and the second annular groove 520, the first annular groove 510 is arranged between the second annular groove 520 and the driving end 530, and one end, far away from the driving end 530, of the driving connecting piece 500 is used for being connected with the driving mechanism; the shell 400 is arranged in the accommodating hole 110, the shell 400 is connected with the clamping mechanism 200, an accommodating space is arranged in the shell 400, the straight-going clamping pieces 210 are arranged in the accommodating space, the outer side surfaces of the straight-going clamping pieces 210 are abutted against 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 straight-going clamping pieces 210; the force-releasing ring 300 is arranged in the accommodating hole 110, a plurality of positioning holes 320 are uniformly arranged on the side wall of the force-releasing ring 300, the positioning holes 320 are matched with the first elastic positioning mechanism 700, and the force-releasing ring 300 is also provided with a mounting hole 310 used for being matched with the nozzle base 2.

As shown in fig. 1 and 2, the conventional high-pressure fine spray nozzle assembly generally includes a base 2 and a nozzle 1, one end of the base 2 is screwed to the nozzle 1, and the other end of the base 2 has a stud 3 for connecting to equipment, and the high-pressure fine spray nozzle assembly is mounted or dismounted by applying a torque to the base 2. The base 2 is generally a hexagonal cylinder, and in this embodiment, the mounting hole 310 of the force-releasing ring 300 may also be a hexagonal hole that is matched with the hexagonal cylinder in order to be matched with the base 2.

When the nozzle assembly needs to be disassembled, the cylinder body 100 in this embodiment may be connected to the driving mechanism, and the other end of the cylinder body 100 is connected to the base 2 through the mounting hole 310 on the force-releasing ring 300, and at the same time, the nozzle 1 may pass through the mounting hole 310 and then extend into the clamping space formed between the inner side surfaces of the straight clips 210. Wherein, the clamping space is a space with approximate hole shape, the diameter of the clamping space is slightly smaller than the outer diameter of the nozzle 1, when the nozzle 1 is inserted into the clamping space, each of the clips 210 can be pressed, the pressed clips 210 are twisted and inclined at a certain angle, that is, one straight traveling jaw 210 is pressed and twisted close to an adjacent straight traveling jaw 210, meanwhile, part of the straight clips 210 have a tendency of expanding outward in the radial direction after being extruded, but are blocked by the housing 400, and the straight clips 210 are simultaneously extruded by the housing 400 and the nozzle 1 and then elastically deformed, so that the extrusion force of the straight clips 210 on the nozzle 1 is increased, thereby can promote the tight fixity of clamp to nozzle 1, when base 2 is pulled down from equipment, through the centre gripping of craspedodrome clamping piece 210 to nozzle 1, can make whole high pressure little fog nozzle assembly can not drop from this assembly and disassembly tools.

In the dismounting process, the driving connecting piece 500 can be controlled by the driving mechanism to drive the cylinder 100 to rotate, the cylinder 100 drives the force unloading ring 300 to synchronously rotate, so that the base 2 can be driven by the force unloading ring 300 to rotate, the base 2 can be dismounted, and the nozzle 1 is fixed on the base 2, so that the base 2 and the nozzle 1 can be integrally dismounted when the base 2 is dismounted.

Conversely, when it is desired to install the nozzle assembly on the apparatus, the barrel 100 may be driven in a reverse direction to gradually tighten the stud 3 on the base 2 onto the apparatus. When the base 2 reaches a preset torque value in the installation process, the base 2 cannot continue to rotate, the barrel 100 still rotates under the action of the driving mechanism at the moment, and the force unloading ring 300 also has a tendency of rotating relative to the base 2; because the force-releasing ring 300 is fixedly connected with the base 2 through the mounting hole 310, the force-releasing ring 300 is restrained by the base 2 and can not rotate, at this time, torsion is generated between the rotating cylinder 100 and the stationary force-releasing ring 300, so that the part of the first elastic positioning mechanism 700, which is matched with the positioning hole 320, is moved out of the positioning hole 320 under the action of the torsion, so that the first elastic positioning mechanism 700 slightly retracts, at this time, the cylinder 100 can continuously rotate relative to the force-releasing ring 300, and when the first elastic positioning mechanism 700 reaches the next positioning hole 320, the first elastic positioning mechanism 700 can be matched with the positioning hole 320 again, and at the same time, the first elastic positioning mechanism 700 can impact the edge of the positioning hole 320, and can transmit the striking sense generated by the impact to the operator, and simultaneously generate striking sound, the operator can clearly judge that the base 2 is mounted through the sensing and sound, and stops the operation of the driving mechanism. Of course, since the driving mechanism drives the barrel 100 to rotate at a higher speed, when the operator recognizes that the preset torque is reached, the first elastic positioning mechanism 700 may be engaged with and disengaged from the plurality of positioning holes 320, and may make a sound of multiple impacts, so that the operator may accurately determine that the base 2 has reached the preset torque. In addition, through the cooperation of the first elastic positioning mechanism 700 and the force unloading ring 300, the torsion from the cylinder body 100 is released when the preset torque is reached, and the phenomenon that the driving mechanism is locked due to the clamping between the force unloading ring 300 and the cylinder body 100 when the preset torque is reached can be avoided.

In addition, when the nozzle assembly is installed, when the nozzle assembly reaches a preset torque, the base 2 does not rotate, but the barrel 100 continues to rotate, if the clamping mechanism 200 is fixedly connected with the barrel 100, the clamping mechanism 200 rotates along with the barrel 100, and since the straight clamping pieces 210 on the clamping mechanism 200 are clamped on the nozzle 1, when the clamping mechanism 200 rotates, continuous sliding friction occurs between the straight clamping pieces 210 and the nozzle 1, accelerated wear of the nozzle 1 is caused, and the service life of the nozzle 1 is reduced. For this reason, in the present embodiment, the clamping mechanism 200 is rotatably disposed in the accommodating hole 110 of the barrel 100, that is, the clamping mechanism 200 and the barrel 100 can rotate relatively, that is, when the barrel 100 rotates, the clamping mechanism 200 is kept still by the action of the large static friction between the nozzle 1 and the nozzle 1, so that the abrasion of the straight clip 210 to the nozzle 1 can be completely avoided, and the service life of the nozzle 1 is prolonged.

In the above description, the nozzle base 2 is detached or attached, and the nozzle 1 is fixed to the base 2, so that the base 2 and the nozzle 1 can be integrally detached when the base 2 is detached. In the process of assembling and disassembling the base 2, the first annular groove 510 is always clamped with the second elastic positioning mechanism 800, as shown in fig. 5, so that a distance is kept between the driving end 530 and the driving groove 240, and relative rotation between the cylinder 100 and the clamping mechanism 200 can be realized.

When only the nozzle 1 needs to be disassembled and assembled, the force unloading ring 300 can be removed from the special tool, that is, the connection of the force unloading ring 300 and the base 2 is not needed, but the nozzle 1 is directly inserted into the clamping space formed between the inner side surfaces of the plurality of straight clamping pieces 210 and used for clamping the nozzle 1, and the clamping of the nozzle 1 is realized through the matching of the straight clamping pieces 210 and the shell 400. Then, the driving connection member 500 may be inserted into the driving hole 120, and the second annular groove 520 and the second elastic positioning mechanism 800 are engaged with each other, as shown in fig. 6, so that the driving end 530 is engaged with the driving groove 240 on the clamping mechanism 200, thereby achieving relative fixation of the cylinder 100 and the clamping mechanism 200, and during the driving connection member 500 drives the cylinder 100 to rotate, the clamping mechanism 200 and the cylinder 100 may rotate synchronously, thereby driving the nozzle 1 to rotate synchronously, and achieving the dismounting and mounting of the nozzle 1 on the base 2. In order to ensure the reliability of the clamping fit between the driving end 530 and the driving groove 240, the driving groove 240 may be a cross-shaped groove, and the driving end 530 may be a cross-shaped protrusion structure

Therefore, when the base 2 is not damaged and the nozzle 1 is damaged, the special tool provided by the embodiment can realize the disassembly of the nozzle 1 through the synchronous rotation of the clamping mechanism 200, the driving connecting piece 500 and the cylinder 100 without disassembling the base 2; when the base 2 is damaged, the base 2 can be detached through the cooperation of the force-releasing ring 300, the clamping mechanism 200 and the cylinder 100. From this, through adjusting drive connection spare 500 in the ascending formula that advances one by one of the axial, realized the selective dismouting to nozzle base 2 or nozzle 1, promoted dismouting efficiency, also reduced the damage that the dismouting in-process caused.

The driving connection member 500 may be a prism with a polygonal cross section, which is a hexagonal prism in this embodiment, and the driving hole 120 may also be a hole with a regular hexagonal cross section, which is matched with the hexagonal prism, and the hexagonal prism may be in interference fit with the driving hole 120. The driving mechanism for controlling the driving connection member 500 may be an existing electric tool, and specifically, may be an electric tightening machine, an electric torque wrench, etc., which is not limited in this embodiment.

In the embodiment, in order to realize that the rectilinear clip 210 has certain elasticity so as to clamp the nozzle 1 through elastic deformation of the rectilinear clip 210, and simultaneously ensure that the rectilinear clip 210 has certain strength, and cannot be worn and broken after long-term use, the material of the rectilinear clip 210 is preferably a copper sheet.

Specifically, the first elastic positioning mechanism 700 includes a spacing post 730, a first spring 720 and a first locking bolt 710; the side wall of the barrel 100 is provided with a first limiting hole 130, 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 then is matched with the positioning hole 320 on the force-removing ring 300, 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 with the first limiting hole 130.

After the positioning hole 320 of the force-releasing ring 300 is aligned with the limiting post 730, the limiting end of the limiting post 730 can be pressed against the positioning hole 320 by the elastic force of the spring, so that the force-releasing ring 300 is positioned in the cylinder 100, and the force-releasing ring 300 can rotate along with the cylinder 100.

When the nozzle assembly is installed on the apparatus, when the nozzle assembly is tightened to a predetermined torque, the force-releasing ring 300 is restrained by the nozzle base 2 and does not rotate any more, at this time, as the barrel 100 continues to rotate, a torsion force is generated between the barrel 100 and the force-releasing ring 300, the torsion force acts on the position-limiting post 730, and the torsion force generates a component force in the axial direction of the position-limiting post 730 to push the position-limiting post 730 to disengage from the position-limiting hole 320, and after the position-limiting post 730 is completely disengaged from the position-limiting hole 320, the position-limiting post 730 keeps contact with the side wall of the force-releasing ring 300 except the position-limiting hole 320 under the action of the spring, and as the barrel 100 rotates, the position-limiting end of the position-limiting post 730 slides on the side wall of the force-releasing ring 300, until the position-limiting post 730 reaches the next position-limiting hole 320, the position-limiting end of the position-limiting post 730 can be re-matched with the current position, the vibration touch feeling and the collision sound are brought to an operator, so that the operator is reminded that the nozzle assembly is installed; meanwhile, the matching mode of the limiting column 730 and the positioning hole 320 can realize automatic force unloading when the preset torque is reached, and the clamping stagnation problem is avoided.

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.

The tapered shape of the limiting post 730 means that the diameter of the limiting post 730 is gradually reduced toward the direction of the limiting end, and when the limiting post 730 is engaged with the first limiting hole 130, the limiting post 730 can be prevented from automatically falling off from the first limiting hole 130; by setting the end surface of the position-limiting post 730 to be a spherical surface, when a torque force is generated between the force-releasing ring 300 and the barrel 100, a component force for pushing the position-limiting post 730 is generated after the inner wall of the positioning hole 320 contacts the spherical surface, so as to avoid the clamping stagnation between the positioning hole 320 and the position-limiting post 730.

Further, as shown in fig. 9, the positioning hole 320 includes a conical surface 322 and a cylindrical surface 321, 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 disposed in the rotation direction of the force-removing ring 300, where the conical surface 322 refers to an acute angle between an inner surface of the positioning hole 320 and the axial direction, and the cylindrical surface 321 refers to an inner surface of the positioning hole 320 parallel to the axial direction.

When the nozzle 1 needs to be disassembled, the barrel 100 drives the force-releasing ring 300 to rotate through the limiting column 730, and at the moment, the limiting column 730 is always attached to the cylindrical surface 321 in the positioning hole 320, so that a tangential force which can drive the force-releasing ring 300 to rotate is generated on the side wall of the positioning hole 320, a component force in the radial direction of the force-releasing ring 300 cannot be generated, the force-releasing ring 300 can be ensured to rotate reliably, and the nozzle 1 can be disassembled.

When the nozzle 1 needs to be installed, the barrel 100 drives the force-discharging ring 300 to rotate through the limiting column 730, at the moment, the spherical surface of the limiting column 730 is always in contact with the conical surface 322 in the positioning hole 320, at the moment, the spherical surface of the limiting column 730 can generate a tangential force for driving the force-discharging ring 300 to rotate on the conical surface 322, and meanwhile, a radial force for pushing the limiting column 730 to be far away from the force-discharging ring 300 can be generated, when the base 2 of the nozzle 1 does not reach a preset torque, the tangential force can always drive the force-discharging ring 300 to rotate, and the limiting column 730 cannot 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 force-releasing ring 300 does not rotate, and the radial force can push out the limit column 730 to release the force.

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, the side wall of the barrel 100 is further provided with a second limiting hole 140 and a third limiting hole, the second limiting hole 140, the third limiting hole and the driving hole 120 are sequentially communicated, wherein the second limiting hole 140 and the third limiting hole are coaxial and are perpendicular to the axis of the third limiting hole, the diameter of the second limiting hole 140 is larger than that of the third limiting hole, the ball 830 is disposed in the second limiting hole 140, and part of the ball 830 protrudes from the third limiting hole into the driving hole 120 and is in clamping fit 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 pin 810 is fixedly connected to the second limiting hole 140.

When the first annular groove 510 or the second annular groove 520 does not reach the position aligned with the ball 830 during the insertion of the driving link 500 into the driving hole 120, the ball 830 is retracted into the second stopper hole 140 by the compression of the sidewall of the driving link 500, and when the first annular groove 510 or the second annular groove 520 reaches the position aligned with the ball 830, the ball 830 may be caught into the annular groove by the second spring 820, thereby accomplishing the catching stopper of the driving link 500.

Further, as shown in fig. 4, the receiving 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 force-releasing ring 300 is disposed in the first hole 111, the clamping mechanism 200 and the housing 400 are disposed in the second hole 112, and the first stopper hole 130 communicates with the first hole 111.

As shown in fig. 5 to 8, the side wall of the force-releasing ring 300 is provided with an arc-shaped groove 330, the arc-shaped groove 330 surrounds the side wall of the force-releasing ring 300, and the limiting end of the limiting post 730 is always located in the arc-shaped groove 330, so that the force-releasing ring 300 can be prevented from being separated from the first hole 111 after the limiting end is removed from the positioning hole 320.

Further, the depth of the first hole 111 is greater than the thickness of the force-releasing ring 300, and after the positioning hole 320 is matched with the limiting column 730, a gap is kept between the force-releasing ring 300 and the step surfaces formed by the first hole 111 and the second hole 112.

When the nozzle assembly reaches a preset torque during installation, the continuous rotation of the barrel 100 can cause the limit column 730 to be continuously clamped and separated with the plurality of positioning holes 320 until the driving mechanism stops; the long-term collision, engagement or disengagement between the positioning hole 320 and the position-limiting post 730 will cause accelerated wear of the positioning hole 320, and the positioning hole 320 will not receive enough tangential force to drive the force-releasing ring 300 to rotate. In order to reduce the abrasion to the positioning hole 320, when the nozzle assembly is installed to reach a preset torque, an operator can apply a certain thrust to the barrel 100 in the direction of the nozzle assembly when hearing the sound generated by the collision of the first sound or the second sound limiting column 730 with the positioning hole 320, when the limiting column 730 rotates along with the barrel 100 and contacts with the part outside the positioning hole 320, the barrel 100 moves axially relative to the force-releasing ring 300 under the action of the thrust, and the moving distance is smaller than or equal to the clearance, so that the axial dislocation of the limiting column 730 relative to the positioning hole 320 in the force-releasing ring 300 can be realized, and the limiting column 730 does not engage with or separate from the subsequent positioning hole 320 in a clamping manner along with the rotation of the barrel 100 until the driving mechanism stops; thereby reducing the matching times of the limiting column 730 and the positioning hole 320, effectively reducing the abrasion on the positioning hole 320 and prolonging the service life.

Further, the disassembling tool further comprises a bearing 600, the clamping mechanism 200 is further provided with a rotating shaft 230, an inner ring of the bearing 600 is fixedly connected with the rotating shaft 230, and an outer ring of the bearing 600 is fixedly connected with the second hole 112.

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

The clamping mechanism 200 is connected with the cylinder 100 through the bearing 600, so that the clamping mechanism 200 can rotate relative to the cylinder 100 conveniently, namely, when the cylinder 100 rotates, the clamping mechanism 200 can be kept still under the action of the bearing 600 and the base 2, and meanwhile, the bearing 600 can support the clamping mechanism 200 to ensure the stability of the clamping mechanism 200 in operation.

Further, in order to ensure the connection reliability between the housing 400 and the clamping mechanism 200, the clamping mechanism 200 further includes a connecting body 220, the straight clip 210 and the rotating shaft 230 are respectively disposed at two sides of the connecting body 220, an external thread is disposed on the connecting body 220, an internal thread is disposed on an inner wall of the housing 400, and the housing 400 is fixedly connected to the connecting body 220 through the cooperation of the external thread and the internal thread after being sleeved on the straight clip 210.

The special tool for dismounting the nozzle base or the nozzle provided by the embodiment of the invention realizes the selective dismounting of the nozzle base or the nozzle, improves the dismounting efficiency, and simultaneously reduces the damage to the nozzle when the nozzle is dismounted.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (8)

1. The utility model provides a special frock for dismouting nozzle base or nozzle which characterized in that includes:

the cylinder body (100) is provided with a containing hole (110) and a driving hole (120) which are communicated with each other in the axial direction of the cylinder body (100), and the side wall of the cylinder body (100) is provided with a first elastic positioning mechanism (700) and a second elastic positioning mechanism (800);

the clamping mechanism (200) is rotatably arranged in the accommodating hole (110), a plurality of straight clamping pieces (210) are arranged on the clamping mechanism (200), the straight clamping pieces (210) are uniformly distributed on the circumferential surface, and a driving groove (240) is arranged at one end, far away from the straight clamping pieces (210), of the clamping mechanism (200);

the driving connecting piece (500) is matched with the driving hole (120), a driving end (530) matched with the driving groove (240) is arranged on the driving connecting piece (500), a first annular groove (510) and a second annular groove (520) are arranged on the driving connecting piece (500), and the second elastic positioning mechanism (800) is clamped and matched with the first annular groove (510) or the second annular groove (520);

the shell (400) is arranged in the accommodating hole (110), the shell (400) is connected with the clamping mechanism (200), an accommodating space is arranged in the shell (400), the straight clamping pieces (210) are arranged in the accommodating space, the outer side surfaces of the straight clamping pieces (210) are abutted to 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 straight clamping pieces (210);

the force unloading ring (300) is arranged in the accommodating hole (110), a plurality of positioning holes (320) are uniformly formed in the side wall of the force unloading ring (300), the positioning holes (320) are matched with the first elastic positioning mechanism (700), and the force unloading ring (300) is further provided with a mounting hole (310) matched with the nozzle base (2).

2. The special tool for dismounting the nozzle base (2) or the nozzle according to claim 1, wherein the first elastic positioning mechanism (700) comprises a limiting column (730), a first spring (720) and a first locking bolt (710);

be provided with first spacing hole (130) on the lateral wall of barrel (100), spacing post (730) set up in first spacing hole (130), the spacing end of spacing post (730) stretch out behind first spacing hole (130) with locating hole (320) cooperation, the both ends of first spring (720) respectively with spacing post (730) with first jam bolt (710) butt, first jam bolt (710) with first spacing hole (130) fixed connection.

3. The special tool for dismounting the nozzle base (2) or the nozzle according to claim 1, wherein 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 further formed in the side wall of the cylinder (100), the second limiting hole (140), the third limiting hole and the driving hole (120) are sequentially communicated, the diameter of the second limiting hole (140) is larger than that 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 into the driving hole (120) and is in clamping fit with the first annular groove (510) or the second annular groove (520);

the two ends of the second spring (820) are respectively abutted with the ball (830) and the second locking bolt (810);

the second locking bolt (810) is fixedly connected with the second limiting hole (140).

4. The special tool for dismounting the nozzle base (2) or the nozzle according to claim 2, wherein the accommodating hole (110) comprises a first hole (111) and a second hole (112), the diameter of the first hole (111) is larger than that of the second hole (112), the force 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 communicated with the first hole (111).

5. The special tool for dismounting the nozzle base (2) or the nozzle according to claim 4, wherein an arc-shaped groove (330) is arranged on the side wall of the force unloading ring (300).

6. The special tool for dismounting the nozzle base (2) or the nozzle according to claim 5, wherein the depth of the first hole (111) is greater than the thickness of the force-releasing ring (300), and after the positioning hole (320) is matched with the limiting column (730), a gap is kept between the force-releasing ring (300) and a step surface formed by the first hole (111) and the second hole (112).

7. The special tool for dismounting the nozzle base (2) or the nozzle according to claim 6, further comprising a bearing (600), wherein the clamping mechanism (200) is further provided with a rotating shaft (230), an inner ring of the bearing (600) is fixedly connected with the rotating shaft (230), and an outer ring of the bearing (600) is fixedly connected with the second hole (112).

8. The special tool for disassembling and assembling the nozzle base (2) or the nozzle according to claim 7, wherein the clamping mechanism (200) further comprises a connecting body (220), the straight clamping piece (210) and the rotating shaft (230) are respectively arranged on two sides of the connecting body (220), an external thread is arranged on the connecting body (220), an internal thread is arranged on an inner wall of the shell (400), and the shell (400) is fixedly connected with the connecting body (220) through the matching of the external thread and the internal thread after being sleeved on the straight clamping piece (210).

Images