CN218947584U

CN218947584U - Guard shield subassembly and cutting device

Info

Publication number: CN218947584U
Application number: CN202223327083.4U
Authority: CN
Inventors: 潘兰志; 李芳�
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-02
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to a shield assembly and a cutting device, wherein the shield assembly comprises a first shield and a second shield which are movably arranged, and the second shield pivots around an intermediate shaft and has a closed first state and an open second state; the first guard shield includes the first cover body and sets up in the connecting seat of the first cover body, and the second guard shield includes the second cover body and connects in the supporting seat of the second cover body, and the guard shield subassembly is including installing in the piston connecting rod subassembly of connecting seat and installing the elastic component in the supporting seat, and the one end butt of elastic component is in piston connecting rod subassembly, and the other end butt is in the supporting seat. According to the utility model, the piston connecting rod assembly and the elastic piece are arranged on the shield assembly, so that the second shield can be kept in the first state or the second state, the second shield is not easy to loosen, the elastic piece is arranged in the supporting seat, a user cannot touch the elastic piece by mistake in the operation process, and the safety is high.

Description

Guard shield subassembly and cutting device

[ field of technology ]

The utility model relates to a shield assembly and a cutting device, in particular to a shield assembly used in occasions such as construction, decoration and construction and a cutting device with the shield assembly.

[ background Art ]

The cutting device is an electric tool which is driven by a motor to reduce the speed and drives an output shaft to operate, the output shaft is provided with a saw blade to cut wood, stone and the like, and in order to protect the operation safety of a user, the cutting device is provided with a shield component which is at least partially coated on the periphery of the saw blade, and further the shield component comprises a fixed shield arranged on the cutting device and a movable shield movably connected with the fixed shield. In the field of construction engineering, in order to ensure the integrity and the aesthetic property of a wall surface, particularly when water-electricity and pipeline construction are performed, a groove is required to be formed in the wall surface, particularly when a right-angle wall surface is cut, a movable shield is required to be opened, and the movable shield is kept at an opening position, so that a user can perform continuous operation.

The shield assembly of the prior art can be referred to in the chinese patent No. CN211807038U issued in the

year

2020, 10 and 30, which discloses: the utility model provides a hand-held type groover, including the fuselage, the head casing, the cutting saw bit, saw bit fixed cover and saw bit movable cover, the fixed cover of saw bit is fixed in head casing one side and shroud in the rear portion upside of cutting the saw bit, saw bit movable cover shroud is in the front portion upside of cutting the saw bit, the rear end of saw bit movable cover is articulated through the articulated shaft with the front end of the fixed cover of saw bit, the front end of saw bit movable cover is the free end and is equipped with the elasticity separation blade, the saw bit movable cover can upwards overturn for the fixed cover of saw bit, still include a spacing extension spring, spacing extension spring one end is connected with the fixed cover of saw bit, the other end is connected with the saw bit movable cover. The above patent sets up spacing extension spring through between movable cover and fixed cover to make the saw bit movable cover can keep in this position and can not rock at will when being in the state of turning down or turning up. However, because the tension spring is externally hung on the outer sides of the movable cover and the fixed cover, a user can touch the tension spring by mistake in the operation process, and the safety is poor.

In view of the foregoing, it is desirable to provide an improved shield assembly and cutting apparatus that overcomes the shortcomings of the prior art.

[ utility model ]

Aiming at the defects of the prior art, the utility model aims to provide a shield assembly with high safety and a cutting device.

The utility model solves the problems in the prior art by adopting the following technical scheme: a guard assembly for a cutting device, the guard assembly comprising first and second guard members movably disposed relative to each other and an intermediate shaft connecting the first and second guard members, the second guard member being pivotable about the intermediate shaft and having a closed first condition and an open second condition; the first guard shield include first cover body and set up in the connecting seat of first cover body, the second guard shield include the second cover body and connect in the supporting seat of the second cover body, the guard shield subassembly including install in the piston connecting rod subassembly of connecting seat and install in elastic component in the supporting seat, the one end butt of elastic component in the piston connecting rod subassembly, and the other end butt in the supporting seat.

The further improvement scheme is as follows: the supporting seat comprises a base body connected with the second cover body and a containing groove penetrating through the base body, and the elastic piece is arranged in the containing groove and abuts against the bottom wall of the containing groove.

The further improvement scheme is as follows: the piston connecting rod assembly comprises a connecting rod movably mounted on the connecting seat and a piston fixed on the connecting rod, the piston is arranged in the accommodating groove, and the piston is abutted to the elastic piece.

The further improvement scheme is as follows: the connecting rod comprises a pivoting part movably mounted on the connecting seat and a rod part protruding outwards from the outer peripheral side of the pivoting part in the radial direction, and the piston is mounted at the end part of the rod part.

The further improvement scheme is as follows: the piston connecting rod assembly comprises a pin shaft penetrating through the pivoting part and the connecting seat, and the piston connecting rod assembly pivots around the pin shaft.

The further improvement scheme is as follows: the support seat comprises an abutting part formed on the periphery of the accommodating groove, the first shield comprises a protruding block arranged on the first shield body, the protruding block is provided with a clamping groove recessed inwards from the end face, and in the second state, the abutting part abuts against the clamping groove.

The further improvement scheme is as follows: the supporting seat comprises a pair of arms arranged on two sides of the accommodating groove, and the piston connecting rod assembly is arranged between the pair of arms.

The further improvement scheme is as follows: the intermediate shaft is arranged between the pair of arms and the supporting seat in a penetrating mode.

The utility model solves the problems in the prior art and can also adopt the following technical scheme: a cutting device comprising a housing, a drive assembly mounted within the housing, and a shroud assembly connected to the housing; and the shroud assembly is any one of the above.

Compared with the prior art, the utility model has the following beneficial effects: through set up piston connecting rod assembly and elastic component on the guard shield subassembly for the second guard shield can keep in first state or second state, is difficult for not hard up, and the elastic component embeds in the supporting seat, and the user can not touch the elastic component by mistake in the operation process, and the security is high. The elastic piece is positioned between the pair of arms, so that a user is effectively prevented from touching the elastic piece by mistake in the operation process. In addition, in the second state, the abutting part abuts against the clamping groove, and the shape of the abutting part is matched with the clamping groove, so that the connection between the supporting seat and the protruding block is more stable in the second state.

[ description of the drawings ]

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic view of the overall structure of a cutting device of the present utility model;

FIG. 2 is a schematic illustration of the cutting apparatus of FIG. 1 with a portion of the shield assembly removed;

FIG. 3 is a schematic view of the construction of a shield assembly in the cutting apparatus shown in FIG. 1;

FIG. 4 is an exploded schematic view of the shroud assembly shown in FIG. 3;

FIG. 5 is a schematic diagram of a state switch of the shroud assembly shown in FIG. 3.

[ detailed description ] of the utility model

The utility model will be described in further detail with reference to the drawings and embodiments.

Referring to fig. 1 and 2, an embodiment of the present utility model relates to a cutting device 100, on which a cutting blade 200 is mounted, wherein the cutting device 100 includes a housing 20 having an elongated shape, a driving assembly (not shown) mounted in the housing 20, a holding portion 30 connected to the housing 20, and a shield assembly 10 connected to a front end of the housing 20, the shield assembly 10 is at least partially wrapped around an outer periphery of the cutting blade 200, the cutting blade 200 is connected to the driving assembly, and the driving assembly is started under the action of a power source to drive the cutting blade 200 to rotate at a high speed so as to perform a cutting operation.

In this embodiment, the holding portion 30 includes a first holding portion 31 adjacent to the shield assembly 10, a second holding portion 32 distant from the shield assembly 10, a reinforcing portion 33 located between the first holding portion 31 and the second holding portion 32, and a third holding portion 34 protruding upward from an end of the first holding portion 31, wherein one end of the first holding portion 31 and one end of the second holding portion 32 are connected to the housing 20, and one end of the reinforcing portion 33 is connected to the housing 20, and the other end is connected to a junction portion of the first holding portion 31 and the second holding portion 32, and the reinforcing portion 33 is beneficial to improving the overall strength of the holding portion 30, so that the holding portion 30 is not prone to damage.

Further, the user can grasp one or more of the first grip portion 31, the second grip portion 32, and the third grip portion 34 to perform the work, greatly improving the operability.

Referring to fig. 3 to 5, the shroud assembly 10 includes a first shroud 1 and a second shroud 2 movably disposed with respect to each other, an intermediate shaft 3 connecting the first shroud 1 and the second shroud 2, a piston rod assembly 4 connected to the first shroud 1, and an elastic member 5 connected to the second shroud 2. In the present embodiment, the first shield 1 is a fixed shield mounted to the housing 20, and the second shield 2 is a movable shield that pivots with respect to the first shield 1 about the intermediate shaft 3. Specifically, the first cover 1 covers the upper rear portion of the cutting blade 200, the second cover 2 covers the upper front portion of the cutting blade 200, and the rear end of the second cover 2 is hinged to the front end of the first cover 1 via the intermediate shaft 3.

In the present embodiment, the front end of the second cover 2 is a free end, the second cover 2 is reversible with respect to the first cover 1, and the second cover 2 has a closed first state and an open second state. Further, the force of the elastic piece 5 acts on the second shield 2, so that the second shield 2 in the first state and the second state is effectively ensured to be difficult to loosen.

In the first state, the shield assembly 10 can cover the cutting blade 200 with the largest area, so as to effectively protect dust, mud, etc. splashed during cutting; when the corner of the wall or the ground is required to be cut, the user only needs to turn the second shield 2 upwards by hand, so that the cutting blade 200 is exposed.

Specifically, in the process of switching from the first state to the second state, the front end of the cutting blade 200 is exposed by turning the second shield 2 around the intermediate shaft 3, and the second shield 2 can be maintained in the second state by the elastic member 5, so that the user can perform continuous and safe operation.

In the present embodiment, the elastic member 5 is a spring.

Referring to fig. 3 to 5, the first shield 1 includes a first shield body 11, a connecting seat 12 disposed on the first shield body 11, and a protruding block 13 disposed on the first shield body 11, the second shield 2 includes a second shield body 21 and a supporting seat 22 connected to the second shield body 21, wherein the piston rod assembly 4 is mounted on the connecting seat 12, and the elastic member 5 is mounted in the supporting seat 22, such that one end of the elastic member 5 is abutted to the piston rod assembly 4, and the other end is abutted to the supporting seat 22. Through set up piston connecting rod assembly 4 and elastic component 5 on guard shield subassembly 10 for second guard shield 2 can keep in first state or second state, is difficult for not hard up, and elastic component 5 is built-in supporting seat 22, and the user can not touch elastic component 5 by mistake in the operation in-process, and the security is high.

Referring to fig. 5, the

second cover

21, 21', 21″ is respectively positioned in the first state, the intermediate state and the second state, and the compression amount of the elastic member 5 is the largest in the intermediate state, and the compression amount of the elastic member 5 is slightly smaller in the first state and the second state.

In the present embodiment, the support base 22 includes a base 221 connected to the second cover 21, a receiving groove 222 penetrating the base 221, a pair of arms 223 disposed at two sides of the receiving groove 222, and a contact portion 224 formed on an outer periphery of the receiving groove 222, and the elastic member 5 is disposed in the receiving groove 222, and the pair of arms 223 protrude from two sides of the receiving groove 222 toward the piston rod assembly 4, so that the piston rod assembly 4 is disposed between the pair of arms 223, and the elastic member 5 is also disposed between the pair of arms 223, thereby effectively preventing a user from touching the elastic member 5 during operation.

In the present embodiment, the intermediate shaft 3 is inserted between the pair of arms 223 and the support base 22.

Further, the piston rod assembly 4 includes a connecting rod 41 movably mounted on the connecting base 12, a piston 42 fixed on the connecting rod 41, and a pin 43 penetrating through the pivot portion 411 of the connecting rod 41 and the connecting base 12, wherein the piston 42 is disposed in the accommodating groove 222, one end of the elastic member 5 abuts against the bottom wall of the accommodating groove 222, the other end abuts against the piston 42, and the piston rod assembly 4 pivots around the pin 43.

Referring to fig. 4, the connecting rod 41 includes a pivot portion 411 movably mounted on the connecting base 12 and a rod portion 412 protruding radially outward from an outer peripheral side of the pivot portion 411, and the piston 42 is mounted at an end of the rod portion 412.

In the present embodiment, the projection 13 has a groove 131 recessed inward from the end surface, and in the second state, the abutting portion 224 abuts against the groove 131. The abutting portion 224 is arc-shaped, and the shape of the abutting portion is matched with that of the clamping groove 131, so that the connection between the supporting seat 22 and the protruding block 13 is more stable in the second state.

According to the utility model, the piston connecting rod assembly 4 and the elastic piece 5 are arranged on the shield assembly 10, so that the second shield 2 can be kept in the first state or the second state, looseness is not easy to occur, the elastic piece 5 is arranged in the supporting seat 22, a user cannot touch the elastic piece 5 by mistake in the operation process, and the safety is high. And the elastic member 5 is also located between the pair of arms 223, so that the user is effectively prevented from touching the elastic member 5 by mistake during the operation. In addition, in the second state, the abutting portion 224 abuts against the clamping groove 131, and the shape of the abutting portion 224 matches with the clamping groove 131, so that in the second state, the connection between the supporting seat 22 and the protruding block 13 is more stable.

The present utility model is not limited to the above-described embodiments. Those of ordinary skill in the art will readily appreciate that many other alternatives to the shield assembly and cutting device of the present utility model are possible without departing from the spirit and scope of the present utility model. The protection scope of the present utility model is subject to the claims.

Claims

1. A guard assembly for a cutting device, the guard assembly comprising first and second guard members movably disposed relative to each other and an intermediate shaft connecting the first and second guard members, the second guard member being pivotable about the intermediate shaft and having a closed first condition and an open second condition; the method is characterized in that: the first guard shield include first cover body and set up in the connecting seat of first cover body, the second guard shield include the second cover body and connect in the supporting seat of the second cover body, the guard shield subassembly including install in the piston connecting rod subassembly of connecting seat and install in elastic component in the supporting seat, the one end butt of elastic component in the piston connecting rod subassembly, and the other end butt in the supporting seat.

2. The shroud assembly of claim 1, wherein: the supporting seat comprises a base body connected with the second cover body and a containing groove penetrating through the base body, and the elastic piece is arranged in the containing groove and abuts against the bottom wall of the containing groove.

3. The shroud assembly of claim 2, wherein: the piston connecting rod assembly comprises a connecting rod movably mounted on the connecting seat and a piston fixed on the connecting rod, the piston is arranged in the accommodating groove, and the piston is abutted to the elastic piece.

4. A shroud assembly as claimed in claim 3, wherein: the connecting rod comprises a pivoting part movably mounted on the connecting seat and a rod part protruding outwards from the outer peripheral side of the pivoting part in the radial direction, and the piston is mounted at the end part of the rod part.

5. The shroud assembly of claim 4, wherein: the piston connecting rod assembly comprises a pin shaft penetrating through the pivoting part and the connecting seat, and the piston connecting rod assembly pivots around the pin shaft.

6. The shroud assembly of claim 2, wherein: the support seat comprises an abutting part formed on the periphery of the accommodating groove, the first shield comprises a protruding block arranged on the first shield body, the protruding block is provided with a clamping groove recessed inwards from the end face, and in the second state, the abutting part abuts against the clamping groove.

7. The shroud assembly of claim 2, wherein: the supporting seat comprises a pair of arms arranged on two sides of the accommodating groove, and the piston connecting rod assembly is arranged between the pair of arms.

8. The shroud assembly of claim 7, wherein: the intermediate shaft is arranged between the pair of arms and the supporting seat in a penetrating mode.

9. A cutting device comprising a housing, a drive assembly mounted within the housing, and a shroud assembly connected to the housing; the method is characterized in that: the shroud assembly of any one of the preceding claims 1 to 8.