CN214684544U - Hand-held chain saw chain tightness adjusting switch - Google Patents

Abstract

The utility model discloses a handheld chain saw chain elasticity regulating switch, including the casing with set up in the saw chain subassembly of casing front end, the saw chain subassembly includes the deflector and follows the chain that deflector circumference set up, the saw chain subassembly is still including being located the apron in the deflector outside, set up in locking mechanism and adjustment mechanism on the apron, locking mechanism runs through perpendicularly in the deflector setting is close to or keeps away from the deflector for the drive apron, adjustment mechanism is on a parallel with the deflector central line is fixed in the apron, be used for the drive the deflector is along its central line direction motion. In this way, the utility model relates to a rationally, simple structure, fix the deflector or loosen through locking mechanism, adjust the distance of deflector for the chain through adjustment mechanism.

Description

Hand-held chain saw chain tightness adjusting switch

Technical Field

The utility model relates to an automation tool field especially relates to handheld chain saw chain elasticity regulating switch.

Background

In the conventional field, a chain saw is widely used as the most common cutting equipment in forest felling, material making, delimbing and other works, but the chain saw adopts a gasoline engine as a driving part, is inconvenient to carry, has an overlarge volume and is inconvenient to use, and is sequentially driven by electric power such as a battery pack and the like as power to simplify the structure of the chain saw.

The prior art discloses a chain saw, which is provided with a regulating assembly driven by a cone gear set meshed with each other and a locking assembly at least partially positioned outside a shell and used for locking and releasing the position of a guide plate relative to the shell in a direction perpendicular to the plane of the guide plate; the locking assembly is provided with a first median plane which passes through the center of the locking assembly, is perpendicular to the plane of the guide plate and is parallel to the first straight line.

Although this technique allows the tightness adjustment of the chain saw, it is driven by means of a bevel gear, which makes the adjustment knob inclined, which is not conducive to adjustment in the working condition, and the adjustment assembly and the locking assembly are partly inside the central housing and partly outside the central housing, which is not fixed in a secure manner and is easily affected by the cutting debris.

Therefore, it is necessary to design a chain tightness adjusting switch which has a simple structure, can adjust the tightness of the saw chain externally, is firm in fixing the adjusting component and the locking component and can effectively protect the chain tightness adjusting switch.

SUMMERY OF THE UTILITY MODEL

Adjust inconveniently at the chain saw during operation in order to overcome current chain elasticity regulating switch, and regulating switch's fixed mode is firm inadequately, the problem that is influenced by the cutting piece easily, the utility model provides a handheld chain saw chain elasticity regulating switch, through set up a curb plate in the casing outside, and be located adjustment mechanism and locking mechanism part or whole curb plate, it is complete with adjustment mechanism and locking mechanism location through three boss structure, stable transmission, the curb plate is with the two cladding simultaneously, prevent that the cutting piece from influencing its normal work, adjust and revolve the cap and inlay in the curb plate panel, the accessible finger is adjusted at curb plate face slide, be convenient for adjust when using the chain saw.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a handheld chain saw chain elasticity regulating switch, is including setting up in the saw chain subassembly of casing front end, the saw chain subassembly includes the deflector and follows the chain that deflector circumference set up, the saw chain subassembly still including being located the apron in the deflector outside, set up in locking mechanism and adjustment mechanism on the apron, locking mechanism runs through perpendicularly casing and deflector are used for the drive the apron is close to or keeps away from the deflector, adjustment mechanism is on a parallel with the deflector central line is fixed in the apron, is used for the drive the deflector moves along its central line direction.

Furthermore, locking mechanism including run through the first pivot of casing, connect in first pivot outer end and swivelling joint in the knob in the apron outside and be fixed in the first mounting of casing inner, the knob with first pivot is connected, makes can drive when the knob rotates first pivot is rotated.

Furthermore, a third opening is formed in the guide plate, the third opening is used for accommodating the first rotating shaft to pass through, and the third opening is arranged along the direction of the center line of the guide plate.

Furthermore, the casing is close to be provided with on apron one side with third opening shape complex arch, just be provided with on the arch and hold the fixed orifices of first pivot, first pivot passes the fixed orifices and with first mounting is connected, makes can drive when first pivot rotates the apron is close to or keeps away from the deflector.

Further, adjustment mechanism including set up in the apron is inboard and follow the lead screw that the deflector central line direction set up, with deflector fixed connection's guide post and through the opening on the apron exposes with the part the cap soon of apron, the one end of lead screw with the cap is connected soon, and its other end passes the screw hole that sets up on the guide post makes the rotation can drive during the cap soon the guide post drives the deflector removes.

Furthermore, the cover plate is provided with a groove for accommodating the screw cap at one end far away from the locking mechanism, and the inner side of the cover plate is provided with a shaft sleeve which is communicated with the groove and is used for accommodating the screw rod.

Further, a first boss structure, a second boss structure and a third boss structure are arranged on the inner side of the cover plate, and a first through hole for accommodating the first rotating shaft is formed in the center of the first boss structure; the second boss structure is provided with first opening and is located for both ends the first portion of accommodating of first boss structure lower extreme, third boss structure be provided with the second opening for both ends and set up in the second portion of accommodating of second boss structure one side, first opening with the coincidence of second open-ended central line.

Further, the guide columns comprise a first guide column and a second guide column which are coaxially connected in a stepped manner, the shaft diameter of the first guide column is larger than that of the second guide column, the screw rod penetrates through a threaded hole which is transversely arranged on the first guide column and is connected in a matched manner, the first guide column is located in the second boss structure, and the shaft diameter of the first guide column is larger than the caliber of the first opening; the other end of the screw rod is connected with a limiting column of a T-shaped structure, a limiting piece accommodated in the third boss structure is connected to the small end of the limiting column in a matched mode, and the length of the limiting piece is larger than the caliber of the second opening.

Further, the second guide column is matched and penetrates through a third through hole formed in the guide plate.

Furthermore, a plurality of anti-skidding grooves are formed in the shaft side of the screw cap along the axis direction of the screw cap.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the curb plate that is located the center shell outside, and set up adjustment mechanism and locking mechanism in the curb plate, and its control end all is located the curb plate face, convenient to use person adjusts in the operation chain saw, adjustment mechanism adopts the cap that revolves of the recess that inlays and set up on the curb plate simultaneously, it rotates to slide the drive cap that revolves at the curb plate face through the finger, and then the drive lead screw rotates, thereby it realizes the elasticity regulation to drive the deflector motion, its curb plate is fixed adjustment mechanism and locking mechanism relatively firm, phenomenons such as skew dislocation can not take place at chain saw during operation, the curb plate is with the transmission structure cladding of the two simultaneously, can not influenced by the piece that the cutting produced.

2. The utility model discloses a set up locking mechanism, set up the locking switch that realizes opening and shutting in the curb plate outside, the curb plate of central casing is kept away from or is close to the control deflector, and when not needing the regulation chain elasticity, locking switch closes, and relatively fixed between deflector and the casing can not touch the regulation switch at the mistake and lead to the deflector motion, has improved the security of chain saw when using greatly.

3. The utility model discloses a set up adjustment mechanism, the lead screw that adopts rotatable cap drive to be connected with it rotates, and then drives the guide post round trip movement of cup jointing on the lead screw to the deflector motion that drive and guide post cooperation are connected reaches the effect of adjusting the distance between deflector and the chain, realizes that the chain elasticity is adjusted.

Drawings

FIG. 1 is a schematic view of an axial measurement structure of the present invention;

FIG. 2 is a schematic diagram of the forward structure of the present invention;

FIG. 3 is a cross-sectional view of A in FIG. 2;

FIG. 4 is a schematic view of the present invention showing a part of the structure;

fig. 5 is a view of another perspective partial structure axis of the present invention;

FIG. 6 is a schematic structural view of the forward portion of the present invention;

fig. 7 is a schematic view of the cover plate axial structure of the present invention;

the parts in the drawings are numbered as follows: 1. a saw chain assembly; 11. a guide plate; 111. a third opening; 112. a third through hole; 12. a chain; 13. a cover plate; 131. a first boss structure; 132. a second boss structure; 133. a third boss structure; 141. a knob; 142. a first rotating shaft; 143. a first fixing member; 151. screwing the cap; 152. a shaft sleeve; 153. a groove; 154. a screw rod; 155. a limiting sheet; 156. a limiting column; 158. a nut; 1591. a first guide post; 1592. a second guide post; 2. a housing; 21. a protrusion; 211. and (7) fixing holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Examples

As shown in fig. 1, a hand-held chain saw chain 12 tightness adjusting switch comprises a saw chain assembly 1 arranged at the front end of a housing 2, wherein the saw chain assembly 1 comprises a guide plate 11 and a chain 12 arranged along the circumferential direction of the guide plate 11, the chain 12 moves along the circumferential direction of the guide plate 11, the saw chain assembly 1 further comprises a cover plate 13 positioned outside the guide plate 11, a locking mechanism and an adjusting mechanism, the locking mechanism is arranged on the cover plate 13 and vertically penetrates through the housing 2 and the guide plate 11 and is used for driving the cover plate 13 to be close to or away from the guide plate 11, and the adjusting mechanism is parallel to the center line of the guide plate 11 and is fixed in the cover plate 13 and is used for driving the guide plate 11 to move along the center line direction thereof to adjust the distance between the guide plate 11 and the chain 12, so as to achieve the purpose of adjusting the tightness of the chain 12.

As shown in fig. 2 to 3, in the present embodiment, the locking mechanism includes a first rotating shaft 142 penetrating through the housing 2, a knob 141 connected to an outer end of the first rotating shaft 142 and rotatably connected to an outer side of the cover plate 13, and a first fixing member 143 fixed to an inner end of the housing 2, wherein the knob 141 is connected to the first rotating shaft 142, so that when the knob 141 is rotated, the first rotating shaft 142 can be driven to rotate, and thus the cover plate 13 is driven to move back and forth to approach or move away from the guide plate 11.

In this embodiment, the guide plate 11 is provided with a third opening 111 that is disposed along a central line direction of the guide plate 11 and receives the first rotating shaft 142 therethrough, so that the first rotating shaft 142 can pass through the third opening 111 without contact, and the first fixing member 143 fixed at an inner end thereof drives the cover plate 13 to move.

In a specific embodiment, the first fixing member 143 may be a nut, a bolt, or the like.

In this embodiment, a protrusion 21 that is matched with the shape of the third opening 111 is disposed on one side of the casing 2 that is close to the cover plate 13, the protrusion 21 and the casing 2 are of an integrally formed structure, so that the guide plate 11 can be guided by the protrusion 21 to move back and forth outside the casing 2, the protrusion 21 is provided with a fixing hole 211 for accommodating the first rotating shaft 142, and the first rotating shaft 142 passes through the fixing hole 211 and is connected to the first fixing member 143, so that the first rotating shaft 142 can drive the cover plate 13 to be close to or away from the guide plate 11 when rotating.

As shown in fig. 4 to 6, in this embodiment, the adjusting mechanism includes a screw 154 disposed inside the cover plate 13 and disposed along the central line direction of the guide plate 11, a guide post fixedly connected to the guide plate 11, and a screw cap 151 partially exposed out of the cover plate 13 through an opening on the cover plate 13, the screw cap 151 is partially exposed, so that a user can adjust the screw cap by only sliding on the outer side of the screw cap 151, one end of the screw 154 is connected to the screw cap 151, the screw cap 158 is fixed inside the screw cap 151 through a nut 158 fixed to one end of the screw 154, and the other end of the screw cap passes through a threaded hole disposed on the guide post, so that the screw cap 151 drives the screw to rotate to change into a linear motion of the guide post, so that the guide post can be driven to drive the guide plate 11 to move when the screw cap 151 is rotated.

In this embodiment, a groove 153 for accommodating the screw cap 151 is disposed at an end of the cover plate 13 away from the locking mechanism, the screw cap 151 is partially located in the groove 153 and can rotate relative to the groove 153, a sleeve 152 penetrating the groove 153 and accommodating the screw rod 154 is disposed inside the cover plate 13, and the screw rod 154 can rotate relative to the sleeve 152.

As shown in fig. 7, in the present embodiment, a first boss structure 131, a second boss structure 132 and a third boss structure 133 are disposed on the inner side of the cover plate 13, and the first boss structure 131131, the second boss structure 132132 and the third boss structure 133133 are all integrally formed with the inner side of the cover plate 1313, and a first through hole for accommodating the first rotating shaft 142 is disposed at the center of the first boss structure 131; second boss structure 132 is provided with first opening and is located for both ends first portion of holding of first boss structure 131 lower extreme, third boss structure 133 is provided with the second opening for both ends and set up in the second portion of holding of second boss structure 132 one side, first opening with the coincidence of second open-ended central line.

In this embodiment, the guiding posts include a first guiding post 1591 and a second guiding post 1592 which are coaxially connected in a stepped manner, the shaft diameter of the first guiding post 1591 is greater than the shaft diameter of the second guiding post 1592, so that the guiding posts are more stably connected with the guiding plate 11, the screw rod 154 passes through a threaded hole transversely arranged on the first guiding post 1591 and is matched with the threaded hole, the first guiding post 1591 is located in the second boss structure 132, and the shaft diameter of the first guiding post 1591 is greater than the bore diameter of the first opening; the other end of the screw 154 is connected with a limiting column 156 with a T-shaped structure, the small end of the limiting column 156 is connected with a limiting sheet 155 accommodated in the third boss structure 133 in a matching manner, and the length of the limiting sheet 155 is greater than the caliber of the second opening, so that the screw 154 and the cover plate 13 are relatively fixed.

In this embodiment, the second guiding post 1592 is fitted through the third through hole 112 formed on the guiding plate 11, so that the guiding post can move the guiding plate 11 when moving back and forth.

In this embodiment, the shaft side of the screw cap 151 is provided with a plurality of anti-slip grooves along the axial direction thereof, so as to enhance the friction force and facilitate adjustment.

In this way, when the tightness of the chain needs to be adjusted, the knob is twisted to drive the first rotating shaft to drive the nut to move in the direction away from the knob, so that the guide plate and the shell are away from each other, the guide plate can move freely, at the moment, the rotating screw cap drives the lead screw to rotate, the guide column on the guide plate drives the guide plate to move along the direction of the central line of the guide plate, the distance between the guide plate and the chain is changed, and the purpose of adjusting the tightness is achieved.

The above description is only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings of the utility model, or the direct or indirect application in other related technical fields, are included in the patent protection scope of the utility model.

Claims (10)

1. The utility model provides a handheld chain saw chain elasticity regulating switch, is including setting up in saw chain subassembly (1) of casing (2) front end, saw chain subassembly (1) includes deflector (11) and along chain (12) that deflector (11) circumference set up, characterized in that, saw chain subassembly (1) still includes apron (13) that are located the deflector (11) outside, set up in locking mechanism and adjustment mechanism on apron (13), locking mechanism runs through perpendicularly casing (2) and deflector (11), is used for the drive apron (13) are close to or keep away from deflector (11), adjustment mechanism is on a parallel with deflector (11) central line and be fixed in apron (13), is used for driving deflector (11) along its central line direction motion.

2. The hand-held chainsaw chain tightness adjusting switch as recited in claim 1, wherein the locking mechanism comprises a first rotating shaft (142) penetrating the housing (2), a knob (141) connected to an outer end of the first rotating shaft (142) and rotatably connected to an outer side of the cover plate (13), and a first fixing member (143) fixed to an inner end of the housing (2), the knob (141) being connected to the first rotating shaft (142) such that the knob (141) can drive the first rotating shaft (142) to rotate when rotated.

3. The hand-held chainsaw chain tightness adjustment switch according to claim 2, wherein the guide plate (11) is provided with a third opening (111) through which the first rotation shaft (142) is received and which is arranged along a center line of the guide plate (11).

4. The hand-held chain saw chain tightness adjusting switch of claim 3, wherein a protrusion (21) matched with the third opening (111) in shape is arranged on one side of the housing (2) close to the cover plate (13), a fixing hole (211) for accommodating the first rotating shaft (142) is arranged on the protrusion (21), and the first rotating shaft (142) penetrates through the fixing hole (211) and is connected with the first fixing piece (143), so that the cover plate (13) can be driven to be close to or far away from the guide plate (11) when the first rotating shaft (142) rotates.

5. The hand-held chain saw chain tightness adjusting switch of claim 2, wherein the adjusting mechanism comprises a screw rod (154) disposed inside the cover plate (13) and disposed along the center line direction of the guide plate (11), a guide post fixedly connected to the guide plate (11), and a screw cap (151) passing through an opening of the cover plate (13) to partially expose the cover plate (13), one end of the screw rod (154) is connected to the screw cap (151), and the other end thereof passes through a threaded hole disposed on the guide post, so that the guide post can be driven to drive the guide plate (11) to move when the screw cap (151) is rotated.

6. The hand-held chainsaw chain tightness adjusting switch according to claim 5, wherein the cover plate (13) is provided with a groove (153) for receiving the screw cap (151) at an end thereof remote from the locking mechanism, and a bushing (152) penetrating the groove (153) and receiving the screw rod (154) is provided inside the cover plate (13).

7. The hand-held chainsaw chain tightness adjusting switch according to claim 5, wherein the cover plate (13) is provided with a first boss structure (131), a second boss structure (132) and a third boss structure (133) inside, and a first through hole for receiving the first rotation shaft (142) is provided at the center of the first boss structure (131); second boss structure (132) are provided with first opening and are located for both ends first portion of holding of first boss structure (131) lower extreme, third boss structure (133) are provided with the second opening for both ends and set up in the second portion of holding of second boss structure (132) one side, first opening with the coincidence of second open-ended central line.

8. The hand-held chainsaw chain tightness adjustment switch of claim 7, wherein the guide posts comprise a first guide post (1591) and a second guide post (1592) coaxially connected in a stepped manner, the first guide post (1591) having a larger shaft diameter than the second guide post (1592), the lead screw (154) passing through a threaded hole provided in the first guide post (1591) transversely disposed and fittingly connected, the first guide post (1591) being located in the second boss structure (132), and the first guide post (1591) having a larger shaft diameter than the first opening; the other end of the screw rod (154) is connected with a limiting column (156) of a T-shaped structure, the small end of the limiting column (156) is connected with a limiting sheet (155) accommodated in the third boss structure (133) in a matching mode, and the length of the limiting sheet (155) is larger than the caliber of the second opening.

9. The hand-held chainsaw chain tightness adjustment switch of claim 8, wherein the second guide post (1592) fits through a third through hole (112) provided on the guide plate (11).

10. The hand-held chainsaw chain tightness adjustment switch of claim 5, wherein the screw cap (151) is provided with a plurality of anti-slip grooves on the shaft side in the axial direction thereof.

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