CN218016153U

CN218016153U - Electric circular saw with adjustable knob

Info

Publication number: CN218016153U
Application number: CN202221421604.XU
Authority: CN
Inventors: 亓书岳; 万延旭
Original assignee: Zhejiang YAT Electrical Appliance Co Ltd
Current assignee: Zhejiang YAT Electrical Appliance Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-12-13
Anticipated expiration: 2032-06-08

Abstract

The utility model relates to an electric tool technical field especially relates to electric circular saw with adjustable knob, establish the knob in regulation pole one end including regulation pole and the movable sleeve that is used for the electric circular saw bottom plate locking, the through-hole has run through in the knob, the through-hole is including setting up the counter bore and the holding hole at the knob both ends respectively and intercommunication counter bore and holding hole's the hole of splining, it is equipped with and forms transition complex spacing head with the counter bore and the hole of splining to adjust pole one end to pass the holding hole, spacing head includes and the hole cooperation of splining so that the knob and regulation pole synchronous pivoted splining and be used for with the counter bore cooperation in order to seal the counter bore and be used for knob and the spacing backplate of adjusting the spacing anticreep of pole, the holding hole is equipped with the elastic component, when the elastic component is used for splining and splining the axial separation of hole, it resets in order to maintain the cooperation relation in splining and splining the hole to drive the knob, the limited problem of current knob drive regulation pole turned angle has been solved.

Description

Electric circular saw with adjustable knob

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electric circular saw technical field especially relates to electric circular saw with adjustable knob.

[ background of the invention ]

Electric circular saw need be earlier after the bottom plate is locked through adjusting the pole earlier when using, just can carry out the processing operation, and when current regulation pole was rotatory, through set up rather than synchronous pivoted knob at its tip, the rotation that utilizes the knob drives the regulation pole and rotates in order to lock the bottom plate and screw.

It has the shortcoming to lie in, because the outside setting of other structures of electric circular saw has restricted the rotation range of knob, and the knob can only be at the fixed range internal rotation when rotating, can not surpass electric circular saw's bottom plate, has certain limitation, and inconvenient utilization knob drives the regulation pole and carries out the purpose that the circumference is rotatory in order to reach the stable locking of bottom plate.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome prior art not enough and provide the electric circular saw that has adjustable knob, solved the limited problem of current knob drive adjusting lever turned angle.

In order to solve the technical problem, the utility model adopts the following technical scheme: electric circular saw with adjustable knob, establish the knob in regulation pole one end including regulation pole and the movable sleeve that is used for locking electric circular saw bottom plate, it has the through-hole to run through in the knob, the through-hole is including setting up counter bore and the holding hole and the intercommunication at the knob both ends respectively the counter bore with the hole that splines of holding hole, adjust pole one end pass the holding hole be equipped with counter bore and the spacing head of the hole that splines formation transition complex, spacing head include with the cooperation of the hole that splines so that knob and regulation pole synchronous pivoted spline and be used for with the counter bore cooperation in order to seal the counter bore and be used for knob and the spacing backplate of adjusting the spacing anticreep of pole, the holding hole is equipped with the elastic component, the elastic component is used for the spline with during the axial separation of the hole that splines, drive the knob and reset in order to maintain the cooperation relation in hole that splines.

In the above-mentioned electric circular saw with adjustable knob, the spacing head with adjust pole integrated into one piece, spacing backplate the stall ring with the radial sectional area of adjusting the pole reduces in proper order.

In the above electric circular saw with the adjustable knob, the elastic member is a spring, and both ends of the spring are respectively connected to the adjusting rod and the inner wall of the accommodating hole.

In the electric circular saw with the adjustable knob, the outer side of the adjusting rod is nested with the retaining ring, one end of the spring abuts against the retaining ring, and the other end of the spring abuts against a step formed at the joint of the accommodating hole and the rotation stopping hole.

In the above electric circular saw with the adjustable knob, a limit groove is formed in an outer side of the adjusting lever, the retainer ring has an opening portion, and the retainer ring passes through the opening portion to be embedded in the limit groove.

In the above electric circular saw with the adjustable knob, a limiting boss is formed at the joint of the rotation stopping ring and the adjusting rod, a limiting ring is arranged in the direction of the accommodating hole away from the limiting boss, and two ends of the elastic part are respectively abutted against the limiting boss and the limiting ring.

In the above electric circular saw with an adjustable knob, the rotation stopping ring has a prism structure, and the shape of the inner wall of the rotation stopping hole and the prism surface of the rotation stopping ring form a transition fit.

Among the prior art, when the bottom plate is back when long-term the use, because long-term running-in between each spare part, its bottom plate takes place to become flexible easily, and because the restriction of electric circular saw external structure, the rotation range of the drive regulation pole of knob is easily restricted, consequently appears the inconvenient problem of bottom plate locking regulation easily.

The utility model has the advantages that:

the utility model discloses in, be equipped with the through-hole that holds the regulation pole and pass in the knob, and the through-hole includes the counter bore, only change the hole and hold the hole, and the one end of adjusting the pole is equipped with respectively after passing the holding hole with counter bore complex spacing backplate and with only change the hole cooperation so that the knob with adjust synchronous pivoted only change the ring, only change the ring with only change the hole cooperation back, can make the knob and adjust the pole and form synchronous rotation, be convenient for utilize the knob to drive the regulation pole rotating, when the knob is rotatory to extreme position, in order to continue to drive through the knob and adjust the pole rotation, can drive the knob to keep away from spacing backplate direction and remove along adjusting the pole, so that the only change the ring of adjusting the pole and the only change the hole separation in the knob, and then make the knob rotate around adjusting the pole through the through-hole, make the knob reset initial position, then reset the back with the knob, make the only change the ring of adjusting the pole agree with only in the hole in the knob, and then lock the two once more, with this realization knob utilizes the purpose that the regulation pole circumference is rotatory.

The utility model discloses in, through setting up spacing backplate and end the change-over at regulation pole tip, utilize spacing backplate and counter bore cooperation back, it is downthehole that not only can completely cut off impurity such as external dust enters into the holding through the counter bore, also utilizes spacing backplate to prevent that the knob from breaking away from with the regulation pole when the axis of adjusting the pole removes simultaneously, plays the effect of spacing protection, is convenient for optimize the product structure.

The utility model discloses in, set up the elastic component in the holding hole, the elasticity that utilizes the elastic component is at the knob when removing to keeping away from spacing backplate direction, and the extrusion makes it produce elastic potential energy, and when the knob need reset so that the hole that splines with spline the cooperation of circling, utilizes the release of elastic component elastic potential energy to drive the knob and resets to cooperate spacing backplate to make the hole that splines of knob and the stable agree with of the circling of regulation pole ring one-tenth of coordinating under the normal state.

In a further scheme, the limiting head and the adjusting rod are integrally formed, and the radial sectional areas of the limiting guard plate, the rotation stopping ring and the adjusting rod are sequentially reduced. When three cross sectional area shrinks in proper order, the aperture of the counter bore that corresponds and its transition fit also is greater than the aperture of the hole that splines, like this when spacing backplate and counter bore cooperation back, can seal the through-hole tip, avoid the dust to enter into the holding in the through-hole through the counter bore and downthehole and influence the spring performance, when the cross-section of spacing backplate is great, also avoid the knob to break away from with the regulation pole through the one end of spacing backplate simultaneously, play spacing guard action.

In a further scheme, the elastic piece is a spring, and two ends of the spring are respectively connected to the adjusting rod and the inner wall of the accommodating hole. The two ends of the spring are free ends, so that the spring can be conveniently placed, and the two ends of the spring can be respectively fixed with the adjusting rod and the inner wall of the containing hole as required, so that the knob and the adjusting rod can form a whole through the spring, and the situation that parts fall off due to the assembly relation among the spring, the knob and the adjusting rod is reduced.

According to the further scheme, a retainer ring is nested on the outer side of the adjusting rod, one end of the spring abuts against the retainer ring, and the other end of the spring abuts against a step formed at the joint of the accommodating hole and the rotation stopping hole. The two ends of the spring are respectively abutted to the adjusting rod and the inner wall of the through hole, the spring is compressed when the knob moves towards the direction away from the limiting protection plate, when the knob resets, the elastic potential energy generated by the compression of the spring is released, the knob is convenient to drive to reset, and the transition fit state of the rotation stopping ring and the rotation stopping hole is maintained, so that when personnel drive the knob to rotate, the pressure of the knob on the spring prevents the knob from sliding randomly along the axial direction of the adjusting rod, and the effect that the position of the knob and the position of the adjusting rod are relatively stable is achieved.

In a further scheme, a limiting groove is formed in the outer side of the adjusting rod, the check ring is provided with an opening part, and the check ring is embedded into the limiting groove through the opening part. The check ring is sleeved on the limiting groove through the opening part, so that the check ring and the adjusting rod can be conveniently assembled.

In a further scheme, a limiting boss is formed at the joint of the rotation stopping ring and the adjusting rod, a limiting ring is arranged in the accommodating hole in the direction away from the limiting boss, and two ends of the elastic piece are respectively abutted against the limiting boss and the limiting ring.

In a further scheme, the anti-rotation ring is of a prism structure, and the shape of the inner wall of the anti-rotation hole is in transition fit with the prism surface of the anti-rotation ring. The prism structure is convenient for after cooperating with the hole of splining, makes knob and regulation pole synchronous revolution, and can not make the two appear the rotation in a circumferential direction.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

fig. 1 is a schematic structural view of an electric circular saw according to an embodiment of the present invention;

FIG. 2 is an exploded view of an adjusting lever and knob according to an embodiment of the present invention;

fig. 3 is a sectional view (after assembly) of an adjusting lever and a knob according to an embodiment of the present invention.

Reference numerals:

100 adjusting rods, 101 limiting grooves, 120 limiting heads, 121 rotation stopping rings and 122 limiting guard plates;

200 knobs, 201 accommodating holes, 202 rotation stopping holes and 203 counter bores;

300 resilient member, 310 retainer ring.

[ detailed description ] A

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the embodiment of the utility model provides an electric circular saw with adjustable knob that provides, generally set up the bottom plate bottom the electric circular saw, and the one end of adjusting pole 100 is inserted and is established on the electric circular saw, and the one end of keeping away from electric circular saw at adjusting pole 100 sets up knob 200, it locks to the bottom plate after adjusting pole 100 rotation to drive through the rotation of knob 200, be locking during general forward rotation, the antiport is the unscrewing, when adjusting pole 100 unscrewing, can adjust the position of bottom plate, so that the bottom plate finds suitable angle that sets up, it is the prior art in this field to adjust the mode of the rotatory locking to the bottom plate of pole 100, and not the utility model discloses the protection point of embodiment, how consequently not realize adjusting pole 100 rotating in order to give unnecessary details to the mode that the bottom plate screwed.

In the prior art, after the bottom plate is used for a long time, because long-term running-in between each spare part, its bottom plate takes place to become flexible easily, and because the restriction of electric circular saw external structure, the rotation range of drive regulation pole 100 of knob 200 is restricted easily, and when knob 200 rotated to extreme position, and the bottom plate was not when stably locking, will influence the normal use of equipment, consequently this implementation adopts following scheme.

In this embodiment, referring to fig. 2 and 3, a through hole penetrates through the knob 200, the through hole is sequentially divided into a counter bore 203, a rotation stopping hole 202 and a containing hole 201 from left to right, one end of the adjusting rod 100 penetrates through the containing hole 201 and is provided with a limiting head 120 which is in transition fit with the counter bore 203 and the rotation stopping hole 202, the limiting head 120 comprises a limiting guard plate 122 arranged at the end of the adjusting rod 100 and a rotation stopping ring 121 arranged at the right end of the limiting guard plate 122, the rotation stopping ring 121 is in a prism structure and can synchronously lock the knob 200 and the adjusting rod 100 after being matched with the rotation stopping hole 202, so that the knob 200 and the adjusting rod 100 can only axially move but can not circumferentially rotate, the adjusting rod 100 can be driven to rotate by the knob 200, the limiting guard plate 122 and the counter bore 203 form clearance fit, due to the existence of the limiting guard plate 122, the knob 200 can only move on the adjusting rod 100 towards the direction far from the limiting guard plate 122, and the elastic member 300 is arranged in the accommodating hole 201, two ends of the elastic member 300 are respectively connected with the inner walls of the adjusting rod 100 and the accommodating hole 201, so that when the knob 200 moves rightwards (away from the direction of the limiting guard plate 122) to separate the rotation stop ring 121 from the rotation stop hole 202, the elastic member 300 generates and stores elastic potential energy, then after the rotation stop ring 121 is separated from the rotation stop hole 202, the knob 200 and the adjusting rod 100 can relatively rotate, the knob 200 is adjusted to an initial position, the acting force on the knob 200 rightwards is cancelled, under the action of the elastic reset force of the elastic member 300, the knob 200 resets leftwards, the rotation stop hole 202 of the knob 200 is engaged with the rotation stop ring 121 of the adjusting rod 100 again, and the adjusting rod 100 can be driven by the knob 200 to rotate again to lock the bottom plate.

In this embodiment, the radial sectional areas of the limiting guard plate 122, the rotation stopping ring 121 and the adjusting rod 100 are sequentially reduced, a limiting boss is formed at the joint of the rotation stopping ring 121 and the adjusting rod 100, when the sectional areas of the three are sequentially reduced, the corresponding aperture of the counter bore 203 in transition fit with the counter bore is also larger than the aperture of the rotation stopping hole 202, thus, after the limiting guard plate 122 is matched with the counter bore 203, the end part of the through hole can be sealed, the dust is prevented from entering the accommodating hole 201 in the through hole through the counter bore 203 to influence the performance of the spring, and meanwhile, when the section of the limiting guard plate 122 is larger, the knob 200 is also prevented from being separated from the adjusting rod 100 through one end of the limiting guard plate 122, and the limiting protection effect is achieved.

In this embodiment, the elastic member 300 may be a spring, a tension spring, or other equivalent elastic components, as long as the elastic member 300 can provide the reset force of the knob 200 after the knob 200 moves rightwards, and can keep the rotation stopping hole 202 of the knob 200 and the rotation stopping ring 121 of the adjustment lever 100 in a fit state under normal conditions, and other structures may also be adopted.

In the present embodiment, a spring is taken as an example, a manner of disposing the elastic member 300 in the accommodating hole 201 is described, referring to fig. 2 and 3, an aperture of the accommodating hole 201 and an aperture of the counterbore 203 are both larger than an aperture of the rotation stop hole 202, a step is formed at a joint of the rotation stop hole 202 and the accommodating hole 201, a limit groove 101 is formed outside the adjusting rod 100 near the rotation stop ring 121, a retainer ring 310 is clamped in the limit groove 101, the retainer ring 310 has an opening portion, the retainer ring 310 is clamped in the limit groove 101 through the opening portion to be connected with the adjusting rod 100, a spring is sleeved outside the adjusting rod 100 in a normal state and is located between the retainer ring 310 and the step, when the knob 200 drives the adjusting rod 100 to rotate to lock the base plate, the knob 200 moves to a limit position and cannot rotate continuously, the knob 200 can move rightward, the step presses the spring, the right end of the spring is compressed due to being limited by the retainer ring 310, elastic potential energy is stored, then, after the knob 200 moves to the rotation stop hole 202 to axially separate from the rotation stop ring 121, the knob 200 rotates to an initial position, the original position, the spring can lock the knob 200 to the knob 200 again, and the reset knob 200 can be locked by the return force generated by the knob 200.

In the above embodiment, the position limiting groove 101 is located on the inner wall of the receiving hole 201 when the knob 200 is fitted to the outside of the adjustment lever 100, so that the position of the retainer ring 310 engaged with the outside of the adjustment lever 100 is limited by the inner wall of the receiving hole 201, and the retainer ring is prevented from being separated from the adjustment lever 100.

Of course, it is conceivable that the limiting groove 101 may be provided on the right side of the knob 200 of the adjustment lever 100, that is, the limiting groove 101 is located outside the accommodating hole 201, and the retainer ring 310 is located on the right side of the knob 200 after being matched with the adjustment lever 100 through the limiting groove 101, so that the spring can be taken out from the accommodating hole 201 after the retainer ring 310 is detached, so that the spring can be replaced in time when the spring is corroded or the elastic restoring force is weakened.

Further, in order to avoid the retaining ring 310 to lack the spacing of the inner wall of the accommodating hole 201 and make the retaining ring 310 break away from the limiting groove 101, the diameter of the opening part of the retaining ring 310 is far smaller than that of the adjusting rod 100, when the retaining ring is clamped outside the adjusting rod 100, the diameter of the opening part can be increased through plastic deformation of the retaining ring 310, and then the retaining ring 310 is clamped outside the clamping groove and then is opened and reset to enable the retaining ring 310 to be stably connected with the adjusting rod 100.

Based on the above embodiment, the two ends of the spring may be free ends, and the two ends of the spring abut against the retainer ring 310 and the step, respectively, so as to facilitate the detachment of the spring, and certainly, the two ends of the spring may be fixed with the step and the retainer ring 310, respectively, as required, so as to form a whole between the knob 200 and the adjusting lever 100 through the spring, thereby reducing the occurrence of the situation that parts fall down due to the assembly relationship among the spring, the knob 200 and the adjusting lever 100.

In this embodiment, as another setting mode of the spring in the accommodating hole 201, one end of the spring may not be limited by the retaining ring 310, a limiting ring may be formed by extending inward the accommodating hole 201 corresponding to the position of the retaining ring 310, and two ends of the spring respectively abut against a limiting boss formed at a connection of the limiting ring and the rotation stop ring 121 with the adjusting lever 100, so that when the knob 200 moves rightward, the spring is compressed by the limiting boss, and elastic potential energy is stored, and then the knob 200 is driven to reset by the spring reset, which has a similar working principle to the above principle and is not described herein.

While the present invention has been described with reference to the particular illustrative embodiments, it will be understood by those skilled in the art that the present invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the present invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims

1. Electric circular saw with adjustable knob, establish the knob in regulation pole one end including regulation pole and the movable sleeve that is used for locking electric circular saw bottom plate, it has the through-hole to run through in the knob, its characterized in that, the through-hole is including setting up counter bore and the holding hole and the intercommunication at the knob both ends respectively the counter bore with the hole that splines of holding hole, adjust pole one end pass the holding hole be equipped with counter bore and the hole that splines form transition complex spacing head, spacing head include with the cooperation of the hole that splines so that the knob with adjust synchronous pivoted spline and be used for with the counter bore cooperation in order to seal the counter bore and be used for knob and the spacing backplate of adjusting the spacing anticreep of pole, the holding hole is equipped with the elastic component, the elastic component be used for the spline with during the axial separation of the hole that splines, drive the knob and reset in order to maintain the spline with the cooperation relation in hole that splines.

2. The electric circular saw with adjustable knob of claim 1, wherein the stopper is integrally formed with the adjusting lever, and the radial sectional areas of the stopper guard, the rotation stop ring and the adjusting lever are sequentially reduced.

3. The electric circular saw having an adjustable knob according to claim 1, wherein the elastic member is a spring, and both ends of the spring are respectively connected to the adjusting lever and an inner wall of the receiving hole.

4. The electric circular saw with adjustable knob of claim 3, characterized in that the adjusting lever is nested with a retaining ring outside, one end of the spring abuts against the retaining ring, and the other end abuts against a step formed at the junction of the receiving hole and the rotation stopping hole.

5. The electric circular saw having an adjustable knob according to claim 4, wherein a stopper groove is formed on an outer side of the adjusting lever, and the retainer ring has an opening portion through which the retainer ring is inserted into the stopper groove.

6. The electric circular saw with adjustable knob of claim 3, wherein a limit boss is formed at the connection of the rotation stop ring and the adjusting lever, a limit ring is disposed in the receiving hole in a direction away from the limit boss, and both ends of the elastic member abut against the limit boss and the limit ring, respectively.

7. The electric circular saw with the adjustable knob according to any one of claims 1 to 6, wherein the rotation stop ring has a prism structure, and the inner wall of the rotation stop hole has a shape of transition fit with the prism surface of the rotation stop ring.