Electric hammer
By setting an exhaust pipe extending towards the driving mechanism on the top of the electric hammer housing, the problems of high temperature and high pressure inside the electric hammer and lubricating oil leakage are solved, and the stable operation and environmental protection of the electric hammer are achieved.
Patent Information
- Application Number
- CN202420107272.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-01-16
AI Technical Summary
The internal transmission structure of the existing electric hammer is complex, resulting in high temperature and pressure, affecting the normal operation of the electric hammer, reducing service life, and lubricating oil is prone to leakage and polluting the environment.
An electric hammer is designed to achieve air pressure balance and prevent oil leakage by providing an exhaust pipe on the top of the housing and extending it toward the driving mechanism.
It effectively avoids oil accumulation and leakage, ensures stable operation of the electric hammer, extends service life, and prevents environmental pollution.
Smart Images
Figure CN222430661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric equipment, in particular to an electric hammer. Background Art
[0002] An electric hammer is an electric tool that uses a motor to drive the hammer attachment to rotate and impact. It is used to make holes in hard materials such as concrete, bricks, and stones.
[0003] The existing electric hammer has a complex internal transmission structure, with both rotating transmission parts and impact transmission parts, which leads to high temperature and pressure inside the electric hammer, affecting the normal operation of the electric hammer and reducing the service life of the electric hammer. At the same time, the high temperature and pressure will also cause the lubricating oil in the electric hammer to leak easily, polluting the environment. Utility Model Content
[0004] The utility model aims to provide an electric hammer, which can achieve air pressure balance, ensure stable operation of the electric hammer, and avoid grease overflow.
[0005] The embodiment of the utility model is achieved as follows:
[0006] In a first aspect, the utility model provides an electric hammer, comprising a housing, an exhaust pipe and a driving mechanism;
[0007] The housing is provided with a cavity, and the driving mechanism is arranged in the cavity;
[0008] One end of the exhaust pipe passes through the top of the shell, and the other end is located in the cavity and extends toward the driving mechanism.
[0009] In the above embodiment, exhaust pipe is provided to achieve exhaust and balance of air pressure; and the exhaust pipe is provided at the top position of the cavity and extended toward the driving mechanism, so that the height of the exhaust pipe in the cavity can be high enough to avoid grease accumulation and overflowing the exhaust pipe; because accumulation is not easy to occur near the driving mechanism, it is also possible to ensure that the end of the exhaust pipe extending into the cavity is away from the grease accumulation area; not only that, the end of the exhaust pipe extending into the cavity is extended toward the driving mechanism, which can also ensure that the end of the exhaust pipe is away from the inner wall of the shell, so as to avoid the grease accumulated on the inner wall from leaking through the exhaust pipe, further avoiding grease leakage or overflow, thereby avoiding pollution of the external environment.
[0010] In an optional embodiment, the shell includes a top wall and a side wall connected to each other, one end of the exhaust pipe passes through the side wall and is close to the top wall, and the other end extends in a horizontal direction.
[0011] In an optional embodiment, the driving mechanism includes a locking member, which is disposed in the cavity and close to the top wall, and the exhaust pipe is located at an end of the cavity and spaced apart from the locking member.
[0012] In an optional implementation, the distance between the end of the exhaust pipe and the locking member is 3 mm to 5 mm.
[0013] In an optional embodiment, the exhaust pipe has an extension length of 27 mm to 30 mm.
[0014] In an optional embodiment, the shell includes a top wall and a side wall connected to each other, one end of the exhaust pipe passes through a position of the top wall close to the side wall, and the other end extends in a vertical direction.
[0015] In an optional embodiment, the driving mechanism includes a rotating member, the rotating member is disposed in the cavity, and the exhaust pipe is located at an end of the cavity and is spaced apart from the rotating member.
[0016] In an optional embodiment, the inner diameter of the exhaust pipe is 1 mm to 2 mm.
[0017] In an optional embodiment, the electric hammer device further includes a filter element, the shell is provided with an air outlet, the exhaust pipe is connected to the air outlet, and the filter element is arranged at the air outlet.
[0018] In an optional embodiment, the filter element is felt.
[0019] The beneficial effects of the electric hammer provided by the embodiment of the utility model include: exhaust and balancing the air pressure by setting an exhaust pipe; and setting the exhaust pipe at the top position of the cavity and extending the exhaust pipe toward the driving mechanism, so that the height of the exhaust pipe in the cavity can be high enough to avoid grease accumulation and overflowing the exhaust pipe; because accumulation is not easy to occur near the driving mechanism, it is also possible to ensure that the end of the exhaust pipe extending into the cavity is away from the grease accumulation area; not only that, the end of the exhaust pipe extending into the cavity is extended toward the driving mechanism, which can also ensure that the end of the exhaust pipe is away from the inner wall of the shell, so as to avoid the grease accumulated on the inner wall from leaking through the exhaust pipe, further avoiding grease leakage or overflow, thereby avoiding pollution of the external environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 A schematic diagram of the structure of an electric hammer provided in an embodiment of the utility model;
[0022] Figure 2 A partial enlarged view of the first embodiment of the electric hammer provided by the utility model;
[0023] Figure 3 This is a partial enlarged view of the second embodiment of the electric hammer provided in the embodiment of the utility model.
[0024] Icon: 10-electric hammer; 100-shell; 110-cavity; 120-top wall; 130-side wall; 140-air outlet; 200-exhaust pipe; 300-driving mechanism; 310-locking member; 320-rotating member; 400-filter member. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0028] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0029] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] First embodiment
[0032] An electric hammer is an electric tool that uses a motor to drive the hammer attachment to rotate and impact. It is used to make holes in hard materials such as concrete, bricks, and stones.
[0033] The existing electric hammer has a complex internal transmission structure, with both rotating transmission parts and impact transmission parts, which leads to high temperature and pressure inside the electric hammer, affecting the normal operation of the electric hammer and reducing the service life of the electric hammer. At the same time, the high temperature and pressure will also cause the lubricating oil in the electric hammer to leak easily, polluting the environment.
[0034] Based on the above questions, please refer to Figure 1 and Figure 2 The utility model provides an electric hammer 10 , which includes a housing 100 , an exhaust pipe 200 and a driving mechanism 300 .
[0035] It can be understood that the electric hammer 10 is usually also provided with a drill bit (not shown in the figure), the driving mechanism 300 includes a rotating driving mechanism (not shown in the figure) and a hammer driving mechanism (not shown in the figure), the shell 100 is provided with a cavity 110, the drill bit, the rotating driving mechanism and the hammer driving mechanism are all arranged in the cavity 110 of the shell 100, and the rotating driving mechanism cooperates with the drill bit transmission to drive the drill bit to rotate; the hammer driving mechanism cooperates with the drill bit transmission to drive the drill bit to hammer, so that the drill bit can hammer while rotating, so that the electric hammer 10 can perform drilling operations in concrete, brick walls, stones, etc.
[0036] In detail, one end of the exhaust pipe 200 passes through the top of the housing 100 , and the other end is located in the cavity 110 and extends toward the driving mechanism 300 .
[0037] In the present embodiment, an exhaust pipe 200 is provided to achieve exhaust and balance of air pressure; and the exhaust pipe 200 is provided at the top position of the cavity 110 and is extended toward the driving mechanism 300, so that the height of the exhaust pipe 200 in the cavity 110 can be high enough to prevent grease from accumulating and overflowing the exhaust pipe 200; since accumulation is not easy to occur near the driving mechanism 300, it is also possible to ensure that the end of the exhaust pipe 200 extending into the cavity 110 is away from the grease accumulation area; not only that, the end of the exhaust pipe 200 extending into the cavity 110 toward the driving mechanism 300 can also ensure that the end of the exhaust pipe 200 is away from the inner wall of the shell 100, so as to prevent the grease accumulated on the inner wall from leaking through the exhaust pipe 200, further avoiding grease leakage or overflow, thereby avoiding pollution of the external environment.
[0038] Furthermore, the shell 100 includes a top wall 120 and a side wall 130 connected to each other. One end of the exhaust pipe 200 passes through the side wall 130 and is close to the top wall 120 , and the other end extends horizontally toward the inside of the cavity 110 .
[0039] In this embodiment, by setting one end of the exhaust pipe 200 on the side wall 130 and making it close to the connection between the side wall 130 and the top wall 120, it is ensured that the position of the exhaust pipe 200 in the cavity 110 is high enough, thereby preventing grease from accumulating at the end of the exhaust pipe 200 extending into the cavity 110, thereby preventing grease leakage.
[0040] In detail, the driving mechanism 300 includes a locking member 310 , which is disposed in the cavity 110 and close to the top wall 120 , and the exhaust pipe 200 is located at an end of the cavity 110 and spaced apart from the locking member 310 .
[0041] In this embodiment, the locking piece 310 is in the shape of a plate, which can fix other components, and grease is not easy to accumulate near the locking piece 310. Therefore, the end of the exhaust pipe 200 extending into the cavity 110 is arranged toward the locking piece 310, which can ensure that no grease will accumulate at the end of the exhaust pipe 200, and make the end of the exhaust pipe 200 away from the side wall 130, further preventing grease from overflowing the exhaust pipe 200.
[0042] Specifically, the distance between the end of the exhaust pipe 200 and the locking member 310 (as shown in A in the figure) is 3 mm to 5 mm.
[0043] It is understandable that setting the distance between the end of the exhaust pipe 200 and the locking member 310 to 3 mm to 5 mm can achieve the effect of avoiding grease leakage caused by grease accumulation to the greatest extent.
[0044] Optionally, the distance between the end of the exhaust pipe 200 and the locking member 310 may be 3 mm, 4 mm or 5 mm. Of course, it may also be other values which are not specifically limited here.
[0045] Specifically, the extension length of the exhaust pipe 200 (as shown in the figure, B) is 27 mm to 30 mm.
[0046] In this embodiment, the length of the exhaust pipe 200 is set to 27 mm to 30 mm, which can ensure that the extension length of the exhaust pipe 200 is reasonable, ensure that there is no grease accumulation at the end of the exhaust pipe 200, and make the end of the exhaust pipe 200 away from the side wall 130, thereby preventing grease from overflowing the exhaust pipe 200.
[0047] Optionally, the extension length of the exhaust pipe 200 may be 27 mm, 28 mm, 29 mm or 30 mm. Of course, it may also be other values which are not specifically limited here.
[0048] Furthermore, the inner diameter of the exhaust pipe 200 (as shown in C in the figure) is 1 mm to 2 mm.
[0049] In this embodiment, if the inner diameter of the exhaust pipe 200 is too large, the outer wall area of the exhaust pipe 200 will be too large, so that grease is adsorbed on the surface of the exhaust pipe 200 and the grease overflow rate is increased; if the inner diameter is too small, the local pressure at the end of the exhaust pipe 200 will be too high, and the grease will be easily discharged from the exhaust pipe 200.
[0050] Therefore, setting the inner diameter of the exhaust pipe 200 to 1 mm to 2 mm can not only connect the cavity 110 with the external environment to achieve the purpose of balancing the air pressure of the cavity 110 with the external air pressure, but also limit the entry of grease into the exhaust pipe 200 to the greatest extent, thereby avoiding grease leakage.
[0051] Optionally, the inner diameter of the exhaust pipe 200 may be 1 mm, 1.5 mm or 2 mm. Of course, it may also be other values which are not specifically limited here.
[0052] Furthermore, the electric hammer 10 device also includes a filter 400 , the housing 100 is provided with an air outlet 140 , the exhaust pipe 200 is connected to the air outlet 140 , and the filter 400 is arranged at the air outlet 140 .
[0053] In this embodiment, it can be understood that the filter element 400 is air-permeable. Therefore, the filter element 400 is arranged at the air outlet 140 to ensure that the gas can pass through the exhaust pipe 200 normally; even if some grease overflows through the exhaust pipe 200, the grease can be absorbed by the filter element 400 to avoid grease overflow.
[0054] Optionally, the filter element 400 is felt.
[0055] Of course, in other embodiments, the filter element 400 may also be other components, as long as the same effect as described above can be achieved, and no specific limitation is made here.
[0056] Second embodiment
[0057] For the sake of brief description, for matters not mentioned in this embodiment, please refer to the first embodiment and will not be repeated here.
[0058] See also Figure 3 One end of the exhaust pipe 200 passes through the top wall 120 near the side wall 130 , and the other end extends vertically toward the inside of the cavity 110 .
[0059] In this embodiment, one end of the exhaust pipe 200 is arranged on the top wall 120 and close to the connection between the top wall 120 and the side wall 130, and the other end extends in a vertical downward direction, which can prevent grease from flowing out of the cavity 110 from the exhaust pipe 200, thereby preventing grease from overflowing.
[0060] Furthermore, the driving mechanism 300 includes a rotating member 320 , and the rotating member 320 is disposed in the cavity 110 . The exhaust pipe 200 is located at an end of the cavity 110 and is spaced apart from the rotating member 320 .
[0061] In this embodiment, the rotating part 320 can be an eccentric wheel. Grease is usually not easy to accumulate at the eccentric wheel. Therefore, the end of the exhaust pipe 200 extending into the cavity 110 is arranged toward the eccentric wheel. This can ensure that no grease accumulates at the end of the exhaust pipe 200, and make the end of the exhaust pipe 200 away from the side wall 130. It can also prevent grease from flowing out of the cavity 110 from the exhaust pipe 200, and further prevent grease from overflowing the exhaust pipe 200 and leaking out of the shell 100.
[0062] In summary, the utility model provides an electric hammer 10, which realizes exhaust and balances air pressure by setting an exhaust pipe 200; and the exhaust pipe 200 is set at the top position of the cavity 110, and the exhaust pipe 200 is extended toward the driving mechanism 300, so that the height of the exhaust pipe 200 in the cavity 110 can be high enough to avoid grease accumulation and overflowing the exhaust pipe 200; because accumulation is not easy to occur near the driving mechanism 300, it is also possible to ensure that the end of the exhaust pipe 200 extending into the cavity 110 is away from the grease accumulation area; not only that, the end of the exhaust pipe 200 extending into the cavity 110 toward the driving mechanism 300 can also ensure that the end of the exhaust pipe 200 is away from the inner wall of the shell 100, so as to avoid the grease accumulated on the inner wall from leaking through the exhaust pipe 200, further avoiding grease leakage or overflow, thereby avoiding pollution of the external environment.
[0063] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An electric hammer, characterized in that: It comprises a housing (100), an exhaust pipe (200) and a driving mechanism (300); The housing (100) is provided with a cavity (110), and the driving mechanism (300) is arranged in the cavity (110); One end of the exhaust pipe (200) passes through the top of the shell (100), and the other end is located in the cavity (110) and extends toward the driving mechanism (300).
2. The electric hammer according to claim 1, characterized in that: The shell (100) comprises a top wall (120) and a side wall (130) connected to each other; one end of the exhaust pipe (200) passes through the side wall (130) and is close to the top wall (120), and the other end extends in a horizontal direction.
3. The electric hammer according to claim 2, characterized in that: The driving mechanism (300) comprises a locking member (310), wherein the locking member (310) is arranged in the cavity (110) and close to the top wall (120), and the exhaust pipe (200) is located at an end of the cavity (110) and is spaced apart from the locking member (310).
4. The electric hammer according to claim 3, characterized in that: The distance between the end of the exhaust pipe (200) and the locking member (310) is 3 mm to 5 mm.
5. The electric hammer according to claim 2, characterized in that: The exhaust pipe (200) has an extension length of 27 mm to 30 mm.
6. The electric hammer according to claim 1, characterized in that: The shell (100) comprises a top wall (120) and a side wall (130) connected to each other; one end of the exhaust pipe (200) passes through a position of the top wall (120) close to the side wall (130), and the other end extends in a vertical direction.
7. The electric hammer according to claim 6, characterized in that: The driving mechanism (300) comprises a rotating member (320), the rotating member (320) is arranged in the cavity (110), and the exhaust pipe (200) is located at the end of the cavity (110) and is spaced apart from the rotating member (320).
8. The electric hammer according to claim 1, characterized in that: The inner diameter of the exhaust pipe (200) is 1 mm to 2 mm.
9. The electric hammer according to claim 1, characterized in that: The electric hammer further comprises a filter element (400), the housing (100) is provided with an air outlet (140), the exhaust pipe (200) is in communication with the air outlet (140), and the filter element (400) is arranged at the air outlet (140).
10. The electric hammer according to claim 9, characterized in that: The filter element (400) is felt.