Quick locking structure for dust suction pipe on sanding machine

Abstract

The quick locking structure comprises a handle shell, a machine head shell and the dust suction pipe, the left end of the handle shell is connected with the right end of the machine head shell in a butt joint mode, and the lower end of the machine head shell is provided with a dust cover arranged above a polishing bottom plate in a covering mode. The left end of the dust suction pipe is in butt joint connection with a dust suction opening in the dust cover, and a buckle assembly used for detachably locking and connecting the dust suction pipe and the handle shell is arranged between the right end of the dust suction pipe and the right end of the handle shell. According to the quick locking structure for the dust collection pipe on the sanding machine, the buckle assembly used for detachably locking and connecting the dust collection pipe and the handle shell is arranged between the right end of the dust collection pipe and the right end of the handle shell, so that the right end of the dust collection pipe can be bound to the right end of the handle, and the dust collection pipe is basically kept in a straightened state and cannot fall freely; therefore, the dust suction pipe cannot cause interference when the sanding machine works, and the working efficiency of the sanding machine is improved; the structural design is ingenious and reasonable, preparation and implementation feasibility is high, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric grinding and polishing tools, in particular to a quick locking structure for a dust suction pipe on a sanding machine. Background Art

[0002] Electric grinding and polishing tools are a commonly used electric tool. They are mechanical equipment for grinding and sanding the surface of materials. They can be used for grinding wood products, metal products, plastic products, walls and other surfaces. A sanding machine is a commonly used electric grinding and polishing tool. Its structure usually includes a handle, a head and a polishing base plate. The handle has a motor, and the motor shaft of the motor is connected to the input end of the transmission mechanism inside the head. The polishing base plate is fixedly installed at the bottom of the head and connected to the output end of the transmission mechanism inside the head. A head shell is provided on the outside of the head, and a handle shell is provided on the outside of the handle. The rear end of the head shell is connected to the front end of the handle shell to form a body shell. A dust cover is provided at the bottom of the head shell and is located above the polishing base plate. The dust suction port on the dust cover is connected to an external dust suction device through a dust suction pipe, so that the dust from grinding and polishing can be quickly sucked away.

[0003] The existing sanding machine has the problem that one end of the dust suction pipe is connected to the dust suction port on the dust cover, and the other end of the dust suction pipe is connected to the dust suction device, and the pipe body of the dust suction pipe is mostly freely hanging, so when the sanding machine is working, the freely hanging dust suction pipe is easy to interfere with the normal polishing operation of the polishing base plate. The utility model proposes a quick locking structure for the dust suction pipe on the sanding machine, in order to solve the above technical problems. Summary of the invention

[0004] The purpose of the utility model is to overcome the defects in the prior art and provide a quick locking structure for a dust suction pipe on a sanding machine. By providing a buckle assembly between the right end of the dust suction pipe and the right end of the handle shell for detachably locking the two together, the right end of the dust suction pipe can be bound to the right end of the handle, and the dust suction pipe can be basically kept in a stretched state without freely falling, thereby ensuring that the dust suction pipe will not cause interference when the sanding machine is operating, which helps to improve the operating efficiency of the sanding machine; the structural design is ingenious and reasonable, the preparation and implementation feasibility is high, and the practicability is strong.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a quick locking structure for a dust suction pipe on a sanding machine, including a handle shell, a head shell and a dust suction pipe, the left end of the handle shell is butt-connected with the right end of the head shell, the lower end of the head shell is provided with a dust cover arranged above the polishing base plate, the left end of the dust suction pipe is butt-connected with the dust suction port located on the dust cover, and a buckle assembly is provided between the right end of the dust suction pipe and the right end of the handle shell for detachably locking the two together.

[0006] The utility model discloses a quick locking structure for a dust suction pipe on a sanding machine. A buckle assembly is provided between the right end of the dust suction pipe and the right end of the handle shell for detachably locking the two together. The right end of the dust suction pipe can be bound to the right end of the handle, and the dust suction pipe can be basically kept in a stretched state without freely falling, thereby ensuring that the dust suction pipe will not cause interference when the sanding machine is operating, which helps to improve the operating efficiency of the sanding machine. The structural design is ingenious and reasonable, the preparation and implementation feasibility is high, and the practicability is strong.

[0007] A preferred technical solution is that a handle shell end cover is provided at the right end of the handle shell, and the buckle assembly is arranged between the handle shell end cover and the right end of the dust suction tube.

[0008] The lock body is a pair of locks, each of which is connected with a lock body by a spring, and the lock body has two ends, one of which is a spring, and the other is a clamping block, and the other is a clamping block. The lock body has two ends, and the other is a clamping block. The lock body has two ends, and the other is a clamping block. The buckle assembly has a simple structural design and good locking stability after buckling, which prevents the vacuum tube from falling off during grinding or polishing operations on the sander. The plug-in buckle or disassembly operation is convenient, ensuring that the vacuum tube can be quickly locked on the handle housing end cover or removed.

[0009] A further preferred technical solution is that the right end of the spring sheet is provided with an L-shaped contact extending downward, and when the spring sheet is inserted and buckled into the plug hole, the L-shaped contact extends to the outside of the right end of the plug hole. The L-shaped contact facilitates pulling the spring sheet and the protrusion out of the plug hole, thereby improving the convenience of removing the vacuum tube from the end cover of the handle housing.

[0010] A further preferred technical solution is that the left side of the card block is set as a slope structure extending from left to right and gradually to the upper right, and the right side of the card block is set as a vertical surface structure. The left side of the card block is set as a slope structure, which improves the smoothness of the spring piece when it is inserted into the plug hole, and the right side of the card block is set as a vertical surface structure, which helps to improve the tightness stability between the card block and the eaves.

[0011] A further preferred technical solution is that the upper end surface of the clamping arm is configured as a slope structure extending gradually from left to right and downward to the right. The upper end surface of the clamping arm with this structural design plays a guiding role when the spring piece at the right end of the vacuum tube is inserted into the plug hole, ensuring smoothness of the plugging of the two.

[0012] A further preferred technical solution is that the right end of the dust suction pipe is provided with a plug-in section located on the right side of the protrusion 1, and the outer side of the right end of the dust suction pipe is also provided with an annular eaves body adjacent to the left end of the plug-in section. The plug-in section facilitates the quick plug-in connection between the free end of the dust suction pipe and the dust suction device, and when the dust suction pipe is plug-in connected with the dust suction device, the annular eaves body plays a limiting role, thereby facilitating the quick docking of the dust suction pipe and the dust suction device.

[0013] A further preferred technical solution is that the dust suction port of the dust cover is provided with a connecting head extending to the right side, the outer side surface of the right end of the connecting head is provided with a countersunk stage, and the left end of the dust suction pipe is interference-fitted or glued to the countersunk stage.

[0014] The advantages and beneficial effects of the utility model are:

[0015] 1. The utility model is a quick locking structure for a dust suction pipe on a sanding machine. By providing a buckle assembly between the right end of the dust suction pipe and the right end of the handle shell for detachably locking the two together, the right end of the dust suction pipe can be bound to the right end of the handle, and the dust suction pipe can be basically kept in a stretched state without falling freely, thereby ensuring that the dust suction pipe will not cause interference when the sanding machine is operating, which helps to improve the operating efficiency of the sanding machine; the structural design is ingenious and reasonable, the preparation and implementation feasibility is high, and the practicability is strong.

[0016] 2. The buckle assembly has a simple structural design and good locking stability after buckling, which prevents the vacuum tube from falling off during grinding or polishing operations on the sander. It is easy to plug in or disassemble, ensuring that the vacuum tube can be quickly locked on the end cover of the handle housing or removed.

[0017] 3. The L-shaped contact piece makes it easy to pull the spring piece and the protrusion out from the inside of the plug-in hole, thereby improving the convenience of removing the vacuum tube from the end cover of the handle shell.

[0018] 4. The left side of the card block is set as a slope structure, which improves the smoothness of the spring piece when it is inserted into the plug hole. The right side of the card block is set as a vertical surface structure, which helps to improve the tight stability between the card block and the eaves.

[0019] 5. The plug-in section facilitates the quick plug-in connection between the free end of the dust suction pipe and the dust suction device. When the dust suction pipe and the dust suction device are plug-in connected, the annular eaves plays a limiting role, thereby facilitating the quick docking of the dust suction pipe and the dust suction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a diagram showing the use state of the quick locking structure of the dust suction pipe on the sanding machine of the utility model;

[0021] Figure 2 yes Figure 1 A partial enlarged view of point F in the middle;

[0022] Figure 3 It is a longitudinal sectional view of the quick locking structure of the dust suction pipe on the sanding machine of the utility model in the use state;

[0023] Figure 4 yes Figure 3 A partial enlarged view of the H in the middle;

[0024] Figure 5 yes Figure 3 A partial enlarged view of the S in the middle;

[0025] Figure 6 It is a stereoscopic image of the vacuum tube from the right front side perspective;

[0026] Figure 7 It is the front view of the vacuum tube;

[0027] Figure 8 is a right front side perspective stereoscopic image of the handle housing end cover;

[0028] Fig. 9 It is a longitudinal sectional view of the handle housing end cover.

[0029] In the figure: 1. handle housing; 2. machine head housing; 3. handle housing end cover; 4. dust suction tube; 5. snap assembly; 2-1. dust cover; 2-2. connecting pipe head; 2-3. countersunk stage; 2-4. polishing bottom plate; 4-1. plug-in section; 4-2. annular eaves; 5-1. protrusion one; 5-1a. groove; 5-2. spring piece; 5-3. block; 5-4. L-shaped contact; 5-5. protrusion two; 5-6. plug-in hole; 5-6a. snap-in arm; 5-7. eaves guard; 5-8. baffle. DETAILED DESCRIPTION

[0030] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0031] Example

[0032] like Figures 1 to 9As shown, the utility model is a quick locking structure for a dust suction pipe on a sanding machine, comprising a handle shell 1, a head shell 2 and a dust suction pipe 4, the left end of the handle shell 1 is butt-jointed with the right end of the head shell 2, the lower end of the head shell 2 is provided with a dust cover 2-1 which is arranged above a polishing base plate 2-4, the left end of the dust suction pipe 4 is butt-jointed with the dust suction port on the dust cover 2-1, and a buckle assembly 5 for detachably locking the two together is provided between the right end of the dust suction pipe 4 and the right end of the handle shell 1.

[0033] Preferably, a handle housing end cover 3 is provided at the right end of the handle housing 1 , and the buckle assembly 5 is arranged between the handle housing end cover 3 and the right end of the dust suction tube 4 .

[0034] Further preferably, a protrusion 5-1 is provided on the upper side of the right end of the dust suction tube 4, a spring piece 5-2 extending to the right is provided on the left end of the upper side of the protrusion 5-1, a clamping block 5-3 is provided on the upper side of the spring piece 5-2, grooves 5-1a are provided on the front and rear sides of the protrusion 5-1, a protrusion 2 5-5 is provided on the lower side of the handle shell end cover 3, a plug hole 5-6 penetrating the left and right end surfaces and opening downward is provided on the protrusion 2 5-5, a baffle 5-8 is provided on the left end of the plug hole 5-6, and the cross section of the plug hole 5-6 is a "pin"-shaped groove structure, located at the lower side of the plug hole 5-6 Open The front and rear side edges of the opening are respectively provided with clamping arms 5-6a extending horizontally toward the inside thereof, and the upper side edge position at the right end of the plug-in hole 5-6 is provided with a guard eave 5-7 extending downward, the spring piece 5-2 is plug-fitted and installed inside the plug-in hole 5-6, the clamping arms 5-6a located on the front and rear sides of the plug-in hole 5-6 are clamped in the corresponding grooves 5-1a on the protrusion 1 5-1, and the clamping block 5-3 is limitedly abutted against the left side of the guard eave 5-7, and the protrusion 1 5-1, spring piece 5-2, clamping block 5-3, protrusion 2 5-5, plug-in hole 5-6, and guard eave 5-7 constitute the clamping assembly 5.

[0035] Further preferably, the right end of the spring piece 5-2 is provided with an L-shaped contact piece 5-4 extending downward, and when the spring piece 5-2 is plugged and snap-fitted into the plug hole 5-6, the L-shaped contact piece 5-4 extends to the outside of the right end of the plug hole 5-6.

[0036] Further preferably, the left side surface of the block 5-3 is set as a slope structure extending from left to right and gradually to the upper right, and the right side surface of the block 5-3 is set as a vertical surface structure.

[0037] Further preferably, the upper end surface of the clamping arm 5-6a is configured as a slope structure that gradually extends from left to right and downward to the right.

[0038] Further preferably, the right end of the dust suction pipe 4 is provided with an inserting section 4-1 located on the right side of the protrusion 5-1, and the outer side of the right end of the dust suction pipe 4 is also provided with an annular eaves 4-2 adjacent to the left end of the inserting section 4-1.

[0039] Further preferably, the dust suction port of the dust cover 2-1 is provided with a connecting head 2-2 extending to the right side outside, the outer side surface of the right end of the connecting head 2-2 is provided with a countersunk stage 2-3, and the left end of the dust suction pipe 4 is interference-fitted or glued to the countersunk stage 2-3.

[0040] The utility model discloses a quick locking structure for a dust suction pipe on a sanding machine.

[0041] When the dust suction tube 4 needs to be removed, hold the handle shell 1 with the left hand, hold the L-shaped contact piece 5-4 with the right hand and press it downward to disengage the block 5-3 from the retaining eaves 5-7, then drag the L-shaped contact piece 5-4 to the right with the right hand to disengage the protrusion 1 5-1 and the spring piece 5-2 from the plug hole 5-6 on the protrusion 2 5-5; when the right end of the dust suction tube 4 is locked on the handle shell end cover 3, hold the handle shell 1 with the left hand, hold the right end of the dust suction tube 4 with the right hand, Align the spring piece 5-2 with the plug-in hole 5-6 on the protrusion 5-5, then push the right end of the dust suction tube 4 to the left with your right hand so that the spring piece 5-2 is plugged into the upper end of the plug-in hole 5-6 and the protrusion 5-1 is plugged into the lower opening position of the plug-in hole 5-6. When it is snap-fitted and installed in place: the clamping arms 5-6a located on the front and rear sides of the plug-in hole 5-6 are clamped into the corresponding grooves 5-1a on the protrusion 5-1, and the clamping block 5-3 is limited and abutted against the left side of the eaves 5-7.

[0042] The utility model discloses a quick locking structure for a dust suction pipe on a sanding machine. A buckle assembly is provided between the right end of the dust suction pipe and the right end of the handle shell for detachably locking the two together. The right end of the dust suction pipe can be bound to the right end of the handle, and the dust suction pipe can be basically kept in a stretched state without freely falling, thereby ensuring that the dust suction pipe will not cause interference when the sanding machine is operating, which helps to improve the operating efficiency of the sanding machine. The structural design is ingenious and reasonable, the preparation and implementation feasibility is high, and the practicability is strong.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A quick locking structure for a dust suction pipe on a sanding machine, comprising a handle housing (1), a head housing (2) and a dust suction pipe (4), wherein the left end of the handle housing (1) is butt-jointed with the right end of the head housing (2), the lower end of the head housing (2) is provided with a dust cover (2-1) which is arranged above a polishing bottom plate (2-4), the left end of the dust suction pipe (4) is butt-jointed with a dust suction port located on the dust cover (2-1), and characterized in that: A buckle assembly (5) is provided between the right end of the dust suction tube (4) and the right end of the handle housing (1) for detachably locking the two together.

2. The quick locking structure for the dust suction pipe on the sanding machine according to claim 1, characterized in that: The right end of the handle housing (1) is provided with a handle housing end cover (3), and the buckle assembly (5) is arranged between the handle housing end cover (3) and the right end of the dust suction pipe (4).

3. The quick locking structure for the dust suction pipe on the sanding machine according to claim 2, characterized in that: The upper side surface of the right end of the dust suction pipe (4) is provided with a protrusion 1 (5-1), the left end of the upper side surface of the protrusion 1 (5-1) is provided with a spring sheet (5-2) extending to the right, the upper side surface of the spring sheet (5-2) is provided with a clamping block (5-3), the front and rear sides of the protrusion 1 (5-1) are respectively provided with grooves (5-1a), the lower side surface of the handle shell end cover (3) is provided with a protrusion 2 (5-5), the protrusion 2 (5-5) is provided with a plug hole (5-6) penetrating the left and right end surfaces and opening downward, the left end of the plug hole (5-6) is provided with a baffle (5-8), the cross section of the plug hole (5-6) is a "pin"-shaped groove structure, and the front of the lower opening position of the plug hole (5-6) is provided with a baffle (5-8). The rear side edges are respectively provided with clamping arms (5-6a) extending horizontally and oppositely toward the inside thereof; the upper side edge position at the right end of the plug hole (5-6) is provided with a shielding eave (5-7) extending downward; the spring sheet (5-2) is plugged and fastened and installed inside the plug hole (5-6); the clamping arms (5-6a) located at the front and rear sides of the plug hole (5-6) are clamped in the corresponding grooves (5-1a) on the protrusion one (5-1); the clamping block (5-3) is limitedly abutted against the left side of the shielding eave (5-7); the protrusion one (5-1), the spring sheet (5-2), the clamping block (5-3), the protrusion two (5-5), the plug hole (5-6), and the shielding eave (5-7) constitute the clamping assembly (5).

4. The quick locking structure for the dust suction pipe on the sanding machine according to claim 3, characterized in that: The right end of the spring sheet (5-2) is provided with an L-shaped contact sheet (5-4) extending downwards. When the spring sheet (5-2) is plugged and buckled into the inside of the plug hole (5-6), the L-shaped contact sheet (5-4) extends to the outside of the right end of the plug hole (5-6).

5. The quick locking structure for the dust suction pipe on the sanding machine according to claim 4, characterized in that: The left side surface of the clamping block (5-3) is configured as a slope structure that gradually extends from left to right and upward to the right, and the right side surface of the clamping block (5-3) is configured as a vertical surface structure.

6. The quick locking structure for the dust suction pipe on the sanding machine according to claim 5, characterized in that: The upper end surface of the clamping arm (5-6a) is configured as a slope structure which gradually extends from left to right and downward to the right.

7. The quick locking structure for the dust suction pipe on the sanding machine according to claim 6, characterized in that: The right end of the dust suction pipe (4) is provided with an inserting section (4-1) located on the right side of the protrusion 1 (5-1), and the outer side of the right end of the dust suction pipe (4) is also provided with an annular eaves body (4-2) adjacent to the left end of the inserting section (4-1).

8. The quick locking structure for the dust suction pipe on a sanding machine according to any one of claims 1 to 7, characterized in that: The dust suction port of the dust cover (2-1) is provided with a connecting head (2-2) extending to the right side outside, the outer side surface of the right end of the connecting head (2-2) is provided with a countersunk stage (2-3), and the left end of the dust suction pipe (4) is interference-fitted or glued to the countersunk stage (2-3).

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