Electric hammer for drilling provided with buffer locking structure

Abstract

The utility model discloses an electric hammer for drilling provided with a buffer locking structure, and relates to the field of electric hammers. A connector is connected to the left end of a shell, a drill rod is installed through the connector, a motor is installed inside the shell, and a transmission mechanism is connected to the left side of the motor, and a hammering device is arranged on the left side of the transmission mechanism. The electric hammer for drilling provided with the buffer locking structure can change the elastic force of a first spring by locking the position of an extrusion ring, thereby changing the strength and frequency of the electric hammer's hammering, and can better adapt to the adjustment of the hammering strength under different circumstances while enhancing the buffering effect of the electric hammer. The telescopic sleeve and the connector are driven to be positioned through a slot, and after the telescopic sleeve is positioned, the punching position can be covered to prevent dust from floating, so that the device has a dustproof function. Secondly, the punching dust can be collected through a collection box, and then dumped through a cover, thereby realizing the dust collection function of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hammers, in particular to an electric hammer for drilling provided with a buffer locking structure. Background Art

[0002] An electric hammer is a tool that uses electricity to drive it. It is mainly used in construction tasks such as building, renovation and demolition. It combines rotary drilling and impact percussion functions, can drill faster and more accurately, and is suitable for processing hard materials.

[0003] In the prior art, a Chinese patent with authorization announcement number CN220162378U discloses an electric hammer for drilling provided with a buffer locking structure, which belongs to the field of electric hammers. Its technical points include a shell, a head shell arranged at the end of the shell, an electric hammer assembly built in the head shell, and a motor for driving the electric hammer assembly to work built in the shell, wherein an impeller is provided on the output end of the motor, and the air outlet of the impeller is directed toward the electric hammer assembly; the utility model effectively reduces the working temperature of the electric hammer assembly and increases the service life of the electric hammer assembly.

[0004] Most of the electric hammers currently used in the market still have certain shortcomings. As shown in the above-mentioned document, the device dissipates heat through the impeller to increase the service life of the device. However, the buffering effect of the electric hammer is not good enough. The arm is prone to vibration and numbness when using it, and the buffering strength cannot be adjusted. It is difficult to adjust the intensity and frequency of the impact according to the needs of use. Secondly, it will cause a lot of dust during use, affecting the surrounding environment, and it is more troublesome to use. Utility Model Content

[0005] The utility model aims to provide an electric hammer for drilling provided with a buffer locking structure, so as to solve the problems in the above-mentioned background technology that the buffer strength of the electric hammer is not high and the impact strength cannot be adjusted according to the environment.

[0006] To achieve the above object, the utility model provides the following technical solution: an electric hammer for drilling provided with a buffer locking structure, wherein a connector is connected to the left end of the housing, a drill rod is installed through the connector, a motor is installed inside the housing, a transmission mechanism is connected to the left side of the motor, and a hammer device is provided on the left side of the transmission mechanism;

[0007] A slide groove is provided inside the housing, and a buffer locking mechanism is provided inside the slide groove. The buffer locking mechanism can absorb the impact force caused by the device to a certain extent, and can affect the speed and strength of the hammer device to absorb and release energy, thereby adjusting the frequency of the electric hammer impact;

[0008] A first fixing block is fixed on the surface of the connector, and a disassembly and assembly mechanism is arranged inside the first fixing block. The dust generated during the drilling process can be covered by the disassembly and assembly mechanism to prevent the dust from flying and affecting the surrounding environment.

[0009] Furthermore, the buffer locking mechanism includes a guide groove, and the guide groove is arranged at the bottom of the slide groove, and a first guide block slides through the inside of the guide groove.

[0010] Furthermore, an extrusion ring is fixed on the top of the first guide block, the extrusion ring slides on the surface of the hammer device, and a second guide block is fixed on the top of the extrusion ring.

[0011] Furthermore, the second guide block slides through the rotating groove, and the rotating groove is opened through the top of the slide groove. The second guide block and the rotating groove are threadedly connected with a threaded rod, and the first bevel gear is fixed to the right end of the threaded rod.

[0012] Furthermore, the first bevel gear is meshedly connected to the side surface of the first bevel gear, a rotating rod is fixed through the inside of the second bevel gear, and the rotating rod rotates through the rotating groove, a first spring is connected between the extrusion ring and the hammer device, and a buffer plate is connected to the right end of the slide groove.

[0013] Furthermore, the disassembly and assembly mechanism includes a slot, and the slot is opened on one side of the first fixed block, the left end of the connecting head is connected to a telescopic sleeve, and the bottom of the telescopic sleeve is connected to a dust collection mechanism, and three groups of second fixed blocks are fixed to the front of the telescopic sleeve, and an insert block is fixed to the end of the second fixed block, and compression pads are connected on both sides of the insert block.

[0014] Furthermore, the dust collecting mechanism includes a collecting box fixed on the bottom of the telescopic sleeve, the bottom of the collecting box is rotatably connected with a sealing cover, the front of the sealing cover is fixed with a plastic block, and the front of the collecting box is fixed with a protrusion.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The electric hammer for drilling provided with a buffer locking structure can change the elastic force of the first spring by locking the position of the extrusion ring, thereby changing the strength and frequency of the electric hammer's hammering, enhancing the buffering effect of the electric hammer while better adapting to the adjustment of the hammering intensity under different conditions. The telescopic sleeve and the connector are driven to be positioned through the slot. After the telescopic sleeve is positioned, the punching position can be covered to prevent dust from flying, so that the device has a dust-proof function. Secondly, the dust from the punching can be collected through the collection box, and then dumped through the cover, thereby realizing the dust collection function of the device;

[0017] 2. A guide groove and a first guide block are provided, and the guide sliding of the guide groove and the first guide block can prevent the extrusion ring from tilting after being subjected to pressure, thereby affecting the buffering effect of the device, so that the buffer structure can operate stably;

[0018] 3. A second guide block and a threaded rod are provided. The threaded connection between the threaded rod and the second guide block can prevent the extrusion ring from moving in the opposite direction after being stressed, and can also improve the stability of the extrusion ring when it moves;

[0019] 4. An extrusion pad is provided, and the extrusion deformation of the extrusion pad can drive the plug block and the slot to be positioned, which simplifies the operation process and improves the efficiency of the telescopic sleeve installation;

[0020] 5. A telescopic sleeve is provided, and through the telescopic performance of the telescopic sleeve, it can be retracted according to the need of opening without affecting the restrictions on the use of the electric hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall front-view stereoscopic structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cutaway three-dimensional structure of the housing of the utility model;

[0023] Figure 3 It is an enlarged three-dimensional structural diagram of the hammer device of the utility model;

[0024] Figure 4 For this utility model Figure 3 The enlarged three-dimensional structure diagram of the middle A part;

[0025] Figure 5 This is an enlarged three-dimensional structural diagram of the telescopic sleeve of the utility model;

[0026] Figure 6 This is a schematic diagram of the split three-dimensional structure of the first fixing block of the utility model;

[0027] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the collection box of the utility model.

[0028] In the figure: 1. shell; 2. connector; 3. drill rod; 4. motor; 5. transmission mechanism; 6. hammer device; 101. slide groove; 102. guide groove; 103. first guide block; 104. extrusion ring; 105. second guide block; 106. rotating groove; 107. threaded rod; 108. first bevel gear; 109. second bevel gear; 110. rotating rod; 111. first spring; 112. buffer plate; 201. first fixed block; 202. slot; 203. telescopic sleeve; 204. second fixed block; 205. plug-in block; 206. extrusion pad; 207. collecting box; 208. cover; 209. plastic block; 210. bump. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1:

[0031] like Figure 1-Figure 4 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the electric hammer has a poor buffering effect and cannot adjust the impact strength according to the use requirements, a buffer locking mechanism is disclosed:

[0032] A connector 2 is connected to the left end of the shell 1, a drill rod 3 is installed inside the connector 2, a motor 4 is installed inside the shell 1, and a transmission mechanism 5 is connected to the left side of the motor 4, a hammer device 6 is arranged on the left side of the transmission mechanism 5, a slide groove 101 is opened inside the shell 1, a buffer locking mechanism is arranged inside the slide groove 101, the buffer locking mechanism can absorb the impact force caused by the device to a certain extent, and can affect the speed and strength of the hammer device 6 absorbing and releasing energy, thereby adjusting the frequency of the electric hammer impact, a first fixed block 201 is fixed on the surface of the connector 2, a disassembly and assembly mechanism is arranged inside the first fixed block 201, the disassembly and assembly mechanism can cover the dust generated during the drilling process to prevent the dust from flying and affecting the surrounding environment.

[0033] The buffer locking mechanism includes a guide groove 102, and the guide groove 102 is opened at the bottom of the slide groove 101, and a first guide block 103 slides through the guide groove 102, and a squeeze ring 104 is fixed on the top of the first guide block 103, and the squeeze ring 104 slides on the surface of the hammer device 6. A second guide block 105 is fixed on the top of the squeeze ring 104, and the second guide block 105 slides through the rotation groove 106, and the rotation groove 106 is opened through the top of the slide groove 101, and the second guide block 105 penetrates the rotation groove 106. A threaded rod 107 is threadedly connected, a first bevel gear 108 is fixed to the right end of the threaded rod 107, a second bevel gear 109 is meshedly connected to the side of the first bevel gear 108, a rotating rod 110 is fixed inside the second bevel gear 109, and the rotating rod 110 rotates inside the rotating groove 106, a first spring 111 is connected between the extrusion ring 104 and the hammer device 6, a buffer sheet 112 is connected to the right end of the slide groove 101, and the transmission mechanism 5 can push the hammer device 6 to impact the end of the drill rod 3 when the electric hammer is used;

[0034] The hammer device 6 can slide inside the slide groove 101 when impacting, and the hammer device 6 can squeeze the first spring 111. The first spring 111 can be deformed after being squeezed to generate a reaction force, thereby reducing the impact force of the hammer device 6 on the housing 1, so that the electric hammer can enhance the buffering effect. Secondly, rotating the rotating rod 110 can drive the second bevel gear 109 to rotate. When the second bevel gear 109 rotates, it can drive the first bevel gear 108 to mesh and rotate. When the first bevel gear 108 meshes and rotates, it can drive the threaded rod 107 to rotate. When the threaded rod 107 rotates, it can drive the second guide block 105 to slide threadedly. When the second guide block 105 slides threadedly, it can slide through the rotating groove 106.

[0035] When the second guide block 105 slides, it can drive the extrusion ring 104 to move. When the extrusion ring 104 moves, it can drive the first guide block 103 to slide inside the guide groove 102. When the extrusion ring 104 slides, the first spring 111 can be squeezed by the hammer device 6. After being squeezed, the first spring 111 contracts to change the elastic force. After the elastic force changes, the intensity and frequency of the electric hammer will also change accordingly. By adjusting and locking the position of the extrusion ring 104, it can better adapt to the adjustment of the hammering intensity under different situations.

[0036] Embodiment 2:

[0037] like Figure 5 and Figure 6 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that a lot of dust will affect the environment when drilling with an electric hammer, a disassembly and assembly mechanism is disclosed:

[0038] The disassembly mechanism includes a slot 202, and the slot 202 is opened on one side of the first fixed block 201. The left end of the connector 2 is connected to a telescopic sleeve 203, and the bottom of the telescopic sleeve 203 is connected to a dust collecting mechanism, and three groups of second fixed blocks 204 are fixed to the front of the telescopic sleeve 203, and an insert block 205 is fixed to the end of the second fixed block 204, and both sides of the insert block 205 are connected to a compression pad 206. When the electric hammer is drilling, moving the telescopic sleeve 203 can drive the second fixed block 204 to move, and when the second fixed block 204 moves, it can drive the insert block 205 moves to the side of the slot 202, and rotating the telescopic sleeve 203 can drive the squeezing pad 206 to squeeze the inner wall of the slot 202. The squeezing pad 206 can be deformed after being squeezed, and the plug block 205 can slide into the inside of the slot 202 during deformation. At this time, the squeezing pad 206 can be squeezed with the slot 202 by resetting. When the squeezing pad 206 is squeezed, the plug block 205 can drive the telescopic sleeve 203 to be positioned. After the telescopic sleeve 203 is positioned, it can cover the punching position to prevent dust from flying, so that the device has a dust-proof function.

[0039] Embodiment three:

[0040] like Figure 5 and Figure 7 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that dust is easily scattered everywhere due to the electric hammer and affects the indoor environment, a dust collection mechanism is disclosed on the basis of the second embodiment:

[0041] The dust collecting mechanism includes a collecting box 207 fixed at the bottom of the telescopic sleeve 203, and the bottom of the collecting box 207 is rotatably connected to a sealing cover 208, a plastic block 209 is fixed at the front of the sealing cover 208, and a protrusion 210 is fixed at the front of the collecting box 207. When the electric hammer is dustproof, the dust generated by punching can fall into the collecting box 207 through the telescopic sleeve 203 for collection. After the punching is completed, the bottom of the collecting box 207 is placed at a specified position, and the plastic block 209 is pulled to deform through its own plastic material. When the plastic block 209 is deformed, it can leave the top of the protrusion 210. At this time, pushing the plastic block 209 can drive the sealing cover 208 to move, and the sealing cover 208 can rotate through the collecting box 207 when it moves. After the sealing cover 208 is rotated to the specified position, the bottom of the collecting box 207 can be opened to pour out the dust inside, so that the device can collect dust.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric hammer for drilling with a buffer locking structure, wherein a connector (2) is connected to the left end of a housing (1), a drill rod (3) is installed through the interior of the connector (2), a motor (4) is installed inside the housing (1), and a transmission mechanism (5) is connected to the left side of the motor (4), and a hammer device (6) is arranged on the left side of the transmission mechanism (5), characterized in that ； A slide groove (101) is provided inside the housing (1), and a buffer locking mechanism is provided inside the slide groove (101). The buffer locking mechanism can absorb the impact force caused by the device to a certain extent, and can affect the speed and strength of the hammer device (6) absorbing and releasing energy, thereby adjusting the frequency of the electric hammer impact; A first fixing block (201) is fixed on the surface of the connector (2), and a disassembly and assembly mechanism is arranged inside the first fixing block (201). The disassembly and assembly mechanism can cover dust generated during the drilling process to prevent the dust from flying and affecting the surrounding environment.

2. The electric hammer for drilling with a buffer locking structure according to claim 1, characterized in that: The buffer locking mechanism comprises a guide groove (102), and the guide groove (102) is arranged at the bottom of the slide groove (101), and a first guide block (103) slides through the guide groove (102).

3. The electric hammer for drilling with a buffer locking structure according to claim 2, characterized in that: A squeezing ring (104) is fixed on the top of the first guide block (103), the squeezing ring (104) slides on the surface of the hammer device (6), and a second guide block (105) is fixed on the top of the squeezing ring (104).

4. The electric hammer for drilling with a buffer locking structure according to claim 3, characterized in that: The second guide block (105) slides through the rotating groove (106), and the rotating groove (106) is opened through the top of the slide groove (101). The second guide block (105) and the rotating groove (106) are threadedly connected to a threaded rod (107), and the first bevel gear (108) is fixed to the right end of the threaded rod (107).

5. The electric hammer for drilling with a buffer locking structure according to claim 4, characterized in that: The first bevel gear (108) is meshedly connected to the side surface with a second bevel gear (109), a rotating rod (110) is fixedly passed through the interior of the second bevel gear (109), and the rotating rod (110) passes through and rotates inside the rotating groove (106), a first spring (111) is connected between the extrusion ring (104) and the hammer device (6), and a buffer sheet (112) is connected to the right end of the slide groove (101).

6. The electric hammer for drilling with a buffer locking structure according to claim 1, characterized in that: The disassembly and assembly mechanism comprises a slot (202), and the slot (202) is opened on one side of the first fixed block (201); the left end of the connector (2) is connected to a telescopic sleeve (203), and the bottom of the telescopic sleeve (203) is connected to a dust collection mechanism; three groups of second fixed blocks (204) are fixed to the front of the telescopic sleeve (203), and an insert block (205) is fixed to the end of the second fixed block (204), and both sides of the insert block (205) are connected to compression pads (206).

7. The electric hammer for drilling with a buffer locking structure according to claim 6, characterized in that: The dust collecting mechanism comprises a collection box (207) fixed on the bottom of the telescopic sleeve (203); the bottom of the collection box (207) is rotatably connected to a sealing cover (208); a plastic block (209) is fixed to the front of the sealing cover (208); and a protrusion (210) is fixed to the front of the collection box (207).

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