Quick release type lopper saw

Abstract

The invention discloses a quick release type lopper saw, which relates to the field of garden pruning tools, and comprises a saw head part, a connecting part and a holding part, and the saw head part is used for extending to a high position to saw branches; the connecting part comprises a telescopic rod and a connecting piece arranged at one end of the telescopic rod, the connecting piece comprises a connecting head and a fixing sleeve piece, the fixing sleeve piece is arranged on the telescopic rod and comprises an inner sleeve with a cylindrical clamping head and an outer sleeve arranged on the outer side of the inner sleeve in a sliding mode, the connecting head is arranged at the tail end of the saw head part, and a groove matched with the cylindrical clamping head is formed in the outer side of the connecting head; the holding part is arranged at the other end of the telescopic rod and comprises a holding handle and a power source. According to the quick disassembly type lopper saw, quick disassembly and assembly of the chain saw part of the lopper saw can be achieved, and time is saved.

Description

Technical Field

[0001] The invention relates to the field of garden pruning tools, in particular to a quick-detachable high-branch saw. Background Art

[0002] A high branch saw is used to prune high branches of trees and is one of the commonly used garden pruning tools. The chain saw part of a common high branch saw is more troublesome to disassemble and assemble. When connecting the rod, it is necessary to first align the holes of the connecting bolts and then tighten the bolts. The above process is slow to install and time-consuming. Summary of the invention

[0003] In view of the above problems, the present invention provides a quick-detachable high-branch saw, which can realize the rapid disassembly and assembly of the chain saw part of the high-branch saw, thus saving time.

[0004] The technical solution of the present invention is as follows:

[0005] A quick-detachable high-branch saw, comprising:

[0006] Saw head, used to extend to high places to saw branches;

[0007] The connecting part comprises a telescopic rod and a connecting piece arranged at one end of the telescopic rod, the connecting piece comprises a connecting head and a fixing kit, the fixing kit comprises an inner sleeve and an outer sleeve, a clamp hole is arranged on the top side wall of the inner sleeve, an elastic clamp and two clamp plates are arranged in the clamp hole, the elastic clamp comprises a cylindrical clamp head with a first extrusion edge around the outer side thereof and a first spring, the two clamp plates are respectively arranged on the inner and outer sides of the corresponding inner sleeve in the clamp hole, a through hole for the cylindrical clamp head to pass through is arranged in the middle of the clamp plate, and the first spring sleeve is provided On the outside of the cylindrical chuck and between one of the clamping plates and the first extrusion edge; an annular receiving groove is provided on the inner side of the bottom of the outer sleeve, and a second spring sleeved on the outside of the inner sleeve is arranged in the receiving groove, and a second extrusion edge is arranged on the outer side of the bottom of the inner sleeve, and two ends of the second spring are connected to the top side of the receiving groove and the second extrusion edge, and the maximum compression distance of the second spring is greater than the distance from the bottom side of the cylindrical chuck to the top end of the outer sleeve before the second spring is compressed; the connecting head is arranged at the tail end of the saw head, and a groove matching the cylindrical chuck is arranged on the outer side thereof;

[0008] The gripping part is arranged at the other end of the telescopic rod and comprises a grip and a power source.

[0009] In a further technical solution, the saw head includes a mounting plate, an oil tank, a motor, a working part and a mounting shell, the oil tank and the motor are arranged on one side of the mounting plate, the working part includes a saw chain, a strip support plate, a fixing part and a sprocket, the shaft of the motor passes through the mounting plate to connect the sprocket, one end of the strip support plate is connected to the fixing part, the saw chain is sleeved on the outside of the sprocket of the support plate, and the mounting shell is detachably arranged on the other side of the mounting plate.

[0010] In a further technical solution, one end of the strip support plate connected to the fixing member is respectively provided with a strip connecting port and a connecting hole, the fixing member includes a fixing column connected to the connecting hole and a connecting column connected to the strip connecting port, a threaded hole is provided in the middle of the connecting column, and a mounting hole matching the threaded hole is provided on the mounting shell, and a screw connecting the threaded hole is passed through the mounting hole.

[0011] In a further technical solution, the cross-section of the connector is rectangular, and the cross-section of the inner hollow portion of the inner sleeve matches the connector.

[0012] In a further technical solution, a socket is provided on the outer side of one end of the telescopic rod connected to the connector, a wire is provided between the socket and the power supply, and a power plug is provided on the motor.

[0013] In a further technical solution, a fixing buckle for the wire is provided at one end of the telescopic rod close to the socket.

[0014] In a further technical solution, the telescopic rod is a hollow rod, and the wire passes through the inner side of the telescopic rod to connect to a power source and a socket respectively.

[0015] In a further technical solution, the screw is a butterfly screw.

[0016] In a further technical solution, the power source is a detachable battery, and a battery compartment for installing the battery is provided at the bottom of the handle.

[0017] The beneficial effects of the present invention are:

[0018] 1. The connecting part included in the high branch saw can be used to install the saw head, and the saw head can be extended to a high place for sawing branches. When the inner sleeve and the outer sleeve are in the initial state, the outer sleeve covers the outer side of the cylindrical clamping head, and the cylindrical clamping head is compressed toward the inner side of the inner sleeve. When installing the saw head, it is only necessary to slide the outer sleeve outside the inner sleeve so that the cylindrical clamping head loses the pressure of the outer sleeve and protrudes toward the outer side of the inner sleeve. At this time, the connecting head at the tail end of the saw head can be inserted into the inner sleeve, and the groove of the connecting head can position the cylindrical clamping head. Then the outer sleeve is slid back to its original position, and the outer sleeve can squeeze the cylindrical clamping head again, and the cylindrical clamping head can be stuck in the groove to lock the connecting head. When disassembling the saw head, it can also be achieved by sliding down the outer sleeve. The above disassembly and assembly method is simple, fast, and time-saving.

[0019] 2. A connector with a rectangular cross section is provided, which is not easy to rotate relative to the inner sleeve, so that the cylindrical clamp in the inner sleeve is easy to align with the groove on the connector;

[0020] 3. The motor of the saw head is detachably connected to the telescopic rod in the form of a plug and a socket, and the socket is connected to the power supply at the grip by passing a wire through the inside of the telescopic rod. The telescopic rod can protect the wire. At the same time, the end of the telescopic rod close to the socket is fixed with a fixing buckle. When the telescopic rod is extended, the fixing buckle pulls the wire to avoid pulling the connection between the wire and the socket;

[0021] 4. The screws for installing the mounting shell are butterfly screws, which can be easily and quickly rotated manually to disassemble and assemble the mounting shell;

[0022] 5. The battery is equipped with a removable battery, which is convenient for disassembly and replacement in the battery compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a quick-detachable high-branch saw according to an embodiment of the present invention;

[0024] Figure 2 is a cross-sectional schematic diagram of a connecting member according to an embodiment of the present invention;

[0025] Figure 3 yes Figure 2 The enlarged schematic diagram at A in the middle;

[0026] Figure 4 is a schematic diagram of the disassembly of the saw head according to an embodiment of the present invention;

[0027] Figure 5 It is a schematic diagram of the saw head according to an embodiment of the present invention without the mounting shell.

[0028] Description of reference numerals:

[0029] 110, mounting plate; 111, positioning block; 120, fuel tank; 130, motor; 131, power plug; 141, saw chain; 142, strip support plate; 143, fixing column; 144, connecting column; 145, sprocket; 150, mounting shell; 151, positioning clamp; 160, butterfly screw; 210, telescopic rod; 211, socket; 212, fixing buckle; 213, wire; 214, fixing bolt; 215, handle; 220, connecting head; 221, groove; 230, inner sleeve; 231, columnar clamp; 232, first extrusion edge; 233, first spring; 234, clamping plate; 235, second extrusion edge; 240, outer sleeve; 241, second spring; 310, handle; 311, button; 320, battery compartment. DETAILED DESCRIPTION

[0030] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] Example:

[0032] like Figure 1-5As shown, a quick-detachable high-branch saw comprises a saw head, a connecting portion and a gripping portion; the saw head is used to extend to saw branches at a high place, comprises a mounting plate 110, an oil tank 120, a motor 130, a working piece and a mounting shell 150, the oil tank 120 and the motor 130 are arranged on the same side of the mounting plate 110, and the working piece is arranged on the other side of the mounting shell 150, comprises a saw chain 141, a strip support plate 142, a fixing piece and a sprocket 145; the machine shaft of the motor 130 passes through the mounting plate 110 to connect the sprocket 145, the strip support plate 142 is used to support the saw chain 141, and a strip connecting port is provided in the middle of one end thereof, the length direction of which is consistent with the strip support plate 142, and a connecting hole is provided on the side of the strip connecting port; the fixing piece is arranged on the mounting plate 110 The connecting rod 143 includes a fixing column 143 connected to the connecting hole and a connecting column 144 connected to the strip-shaped connecting port, wherein the fixing column 143 is a structure with adjustable position in the prior art, and its purpose is to tighten the saw chain 141 by adjusting and fixing its position after the saw chain 141 is installed; a threaded hole is provided in the middle of the connecting column 144, and a mounting hole matching the threaded hole is provided on the mounting shell 150, and a screw connecting the threaded hole is passed through the mounting hole. In order to facilitate the rapid disassembly and assembly of the screw, a butterfly screw 160 can be selected, and a non-threaded connecting rod is provided at the bottom end of the butterfly screw 160. When installing the butterfly screw 160, part of the connecting rod first enters the threaded hole, and when the threaded part of the butterfly screw 160 contacts the threaded hole, the butterfly screw 160 is rotated to tighten, thereby reducing the rotation The number of times the butterfly screw 160 is turned; the saw chain 141 is sleeved on the outer side of the sprocket 145 of the support plate; the connecting part includes a telescopic rod 210 and a connecting piece provided at one end of the telescopic rod 210, the connecting piece includes a connecting head 220 and a fixing kit, the fixing kit includes an inner sleeve 230 and an outer sleeve 240, a clamp hole is provided on the top side wall of the inner sleeve 230, an elastic clamp and two clamp plates 234 are provided in the clamp hole, the elastic clamp includes a columnar clamp head 231 with a first extrusion edge 232 around the outer side thereof and a first spring 233, the two clamp plates 234 are respectively provided on the inner and outer sides of the corresponding inner sleeve 230 in the clamp hole, a through hole for the columnar clamp head 231 to pass through is provided in the middle of the clamp plate 234, and the first spring 233 is sleeved on the column The outer side of the cylindrical clamp 231 and between the clamping plate 234 and the first extrusion edge 232 close to the inner side of the inner sleeve 230, one end of the cylindrical clamp 231 close to the outer side of the inner sleeve 230 is the extrusion end, and the other end is the clamping end. Before the first spring 233 is compressed, the extrusion end of the cylindrical clamp 231 protrudes from the inner sleeve 230 by a distance greater than the gap distance between the inner sleeve 230 and the outer sleeve 240, and the clamping end of the cylindrical clamp 231 is in the clamping hole. After the first spring 233 is compressed, the extrusion end of the cylindrical clamp 231 abuts against the inner wall of the outer sleeve 230, and the clamping end of the cylindrical clamp 231 protrudes relative to the inner wall of the inner sleeve 230, ensuring that when the first spring 233 is compressed, the cylindrical clamp 231 can be clamped into the groove 221;An annular receiving groove is provided at the inner side of the bottom of the outer sleeve 240, and a second spring 241 is provided in the receiving groove and sleeved on the outer side of the inner sleeve 230. A second extrusion edge 235 is provided at the outer side of the bottom of the inner sleeve 230. The two ends of the second spring 241 are connected to the top side of the receiving groove and the second extrusion edge 235. The maximum compression distance of the second spring 241 is greater than the distance from the bottom side of the columnar clamp 231 to the top of the outer sleeve 240 before the second spring 241 is compressed, so as to ensure that the columnar clamp 231 can be separated from the inner wall of the outer sleeve 240 when the outer sleeve 240 is pressed down; the connecting head 220 is provided at the tail end of the saw head, and a groove 221 matching the columnar clamp 231 is provided on the outer side thereof. The end of the columnar clamp 231 that contacts the inner wall of the outer sleeve 240 can be set to a hemispherical shape; the gripping part is provided at the other end of the telescopic rod 210, and includes a gripping handle 310 and a power supply. ;

[0033] The working principle of the above technical solution is as follows:

[0034] When disassembling the high-branch saw, the outer sleeve 240 can be directly moved in the direction of compressing the second spring 241, so that the cylindrical clamp 231 on the inner sleeve 230 is separated from the inner wall of the outer sleeve 240. After the cylindrical clamp 231 loses the compression of the outer sleeve 240, it protrudes to the outside of the inner sleeve 230 due to the elastic force of the first spring 233, so that the other end of the cylindrical clamp 231 is separated from the groove 221 of the connecting head 220 on the inner side of the inner sleeve 230, and the entire saw head can be removed. The principle is the same when installing; when the saw head of the high-branch saw needs to replace parts, the butterfly screw 160 can be rotated to remove the mounting shell 150 and replace the parts of the working piece.

[0035] In another embodiment, the cross section of the connector 220 is rectangular, and the cross section of the inner hollow portion of the inner sleeve 230 matches the connector 220. The connector 220 with a rectangular cross section is not easy to rotate relative to the inner sleeve 230, which facilitates the alignment of the cylindrical clamp 231 in the inner sleeve 230 with the groove 221 on the connector 220.

[0036] In another embodiment, if Figure 2 and Figure 4As shown, a socket 211 is provided on the outer side of one end of the telescopic rod 210 connected to the connecting piece, and a wire 213 is provided between the socket 211 and the power supply. The telescopic rod 210 can be a hollow rod, and the wire 213 is connected to the power supply and passes through the inside of the telescopic rod 210 to connect to the socket 211. A fixing buckle 212 of the wire 213 is provided at one end of the telescopic rod 210 close to the socket 211, and a power plug 131 is provided on the motor 130. The motor 130 of the saw head is detachably connected to the telescopic rod 210 in the form of a plug and a socket 211, and the socket 211 is connected to the power supply at the grip portion in the form of the wire 213 passing through the inside of the telescopic rod 210. The telescopic rod 210 can protect the wire 213. At the same time, the end of the telescopic rod 210 close to the socket 211 is fixed by a fixing buckle 212. When the telescopic rod 210 is extended, the fixing buckle 212 pulls the wire 213 to prevent the connection between the wire 213 and the socket 211 from being pulled.

[0037] In another embodiment, if Figure 1 As shown, a battery compartment 320 for connecting the wire 213 is provided on the bottom side of the handle 310 . A detachable battery can be selected as the power source and is arranged in the battery compartment 320 . The battery is convenient to be removed, replaced and charged. A button 311 for turning on the power can be provided on the handle 310 .

[0038] In another embodiment, if Figure 4-5 As shown, a positioning block 111 with a positioning groove is provided on the mounting plate 110, and a positioning clamp 151 is provided on the mounting shell 150 at a position corresponding to the positioning block 111. When installing the mounting shell 150, the positioning clamp 151 can be inserted into the positioning groove of the positioning block 111, so as to quickly locate the position and direction of the mounting shell 150.

[0039] In another embodiment, if Figure 1 As shown, the telescopic rod 210 includes a fixed section and an inner telescopic section. Two locking holes are provided on the fixed section, and fixing bolts 214 are arranged in the locking holes. Tightening the fixing bolts 214 can fix the telescopic section after extension.

[0040] In another embodiment, if Figure 1 As shown, a handle 215 may be provided on the fixed section of the telescopic rod 210 , which cooperates with the grip 310 to facilitate operation of the high-branch saw.

[0041] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A quick-detachable high-branch saw, characterized in that: include: Saw head, used to extend to high places to saw branches; The connecting part comprises a telescopic rod and a connecting piece arranged at one end of the telescopic rod, the connecting piece comprises a connecting head and a fixing kit, the fixing kit comprises an inner sleeve and an outer sleeve, a clamp hole is arranged on the top side wall of the inner sleeve, an elastic clamp and two clamp plates are arranged in the clamp hole, the elastic clamp comprises a cylindrical clamp head with a first extrusion edge around the outer side thereof and a first spring, the two clamp plates are respectively arranged on the inner and outer sides of the corresponding inner sleeve in the clamp hole, a through hole for the cylindrical clamp head to pass through is arranged in the middle of the clamp plate, and the first spring is sleeved on The outer side of the cylindrical chuck is located between one of the clamping plates and the first extrusion edge; the inner side of the bottom of the outer sleeve is provided with an annular receiving groove, and the second spring sleeved on the outer side of the inner sleeve is arranged in the receiving groove, and the second extrusion edge is arranged on the outer side of the bottom of the inner sleeve, and the two ends of the second spring are connected to the top side of the receiving groove and the second extrusion edge, and the maximum compression distance of the second spring is greater than the distance from the bottom side of the cylindrical chuck to the top end of the outer sleeve before the second spring is compressed; the connecting head is arranged at the tail end of the saw head, and the outer side thereof is provided with a groove matching the cylindrical chuck; The gripping part is arranged at the other end of the telescopic rod and comprises a grip and a power source.

2. The quick-detachable high-branch saw according to claim 1, characterized in that: The saw head includes a mounting plate, an oil tank, a motor, a working part and a mounting shell, wherein the oil tank and the motor are arranged on one side of the mounting plate, and the working part includes a saw chain, a strip support plate, a fixing part and a sprocket, the shaft of the motor passes through the mounting plate to connect the sprocket, one end of the strip support plate is connected to the fixing part, the saw chain is sleeved on the outer side of the sprocket of the support plate, and the mounting shell is detachably arranged on the other side of the mounting plate.

3. The quick-detachable high-branch saw according to claim 2, characterized in that: The ends of the strip support plate connected to the fixing member are respectively provided with a strip connection port and a connection hole, the fixing member includes a fixing column connected to the connection hole and a connecting column connected to the strip connection port, a threaded hole is provided in the middle of the connecting column, a mounting hole matching the threaded hole is provided on the mounting shell, and a screw connecting the threaded hole is passed through the mounting hole.

4. The quick-detachable high-branch saw according to claim 1, characterized in that: The cross section of the connector is rectangular, and the cross section of the inner hollow portion of the inner sleeve matches the connector.

5. The quick-detachable high-branch saw according to claim 2, characterized in that: A socket is arranged on the outer side of one end of the telescopic rod connected to the connecting piece, a wire is arranged between the socket and the power source, and a power plug is arranged on the motor.

6. The quick-detachable high-branch saw according to claim 5, characterized in that: One end of the telescopic rod close to the socket is provided with a fixing buckle for the wire.

7. The quick-detachable high-branch saw according to claim 6, characterized in that: The telescopic rod is a hollow rod, and the wires pass through the inner side of the telescopic rod and are respectively connected to a power source and a socket.

8. The quick-detachable high-branch saw according to claim 3, characterized in that: The screw is a butterfly screw.

9. The quick-detachable high-branch saw according to claim 1, characterized in that: The power source is a detachable battery, and a battery compartment for installing the battery is provided at the bottom of the handle.

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