CN211163800U - Hammer capable of achieving secondary knocking - Google Patents
Hammer capable of achieving secondary knocking Download PDFInfo
- Publication number
- CN211163800U CN211163800U CN201922209028.7U CN201922209028U CN211163800U CN 211163800 U CN211163800 U CN 211163800U CN 201922209028 U CN201922209028 U CN 201922209028U CN 211163800 U CN211163800 U CN 211163800U
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- Prior art keywords
- hammer
- hammer head
- head
- knocking
- grab handle
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Abstract
The utility model provides a hammer capable of knocking for two times, which comprises a first hammer head, a second hammer head and a grab handle; the first hammer head is fixedly connected to one end of the grab handle; the second hammer head is rotatably connected to one end, close to the first hammer head, of the grab handle; and a virtual circle where the rotating track of the second hammer head is positioned is tangent to the virtual central axis of the first hammer head. When knocking the mortise and tenon joint structure by using the device, the second hammer head is impacted with higher speed under the action of inertia under the action of the first hammer head contacted with the knocked object, so that the secondary knocking effect is achieved. The device reduces the knocking times of a master worker, relieves the fatigue degree of the master worker at the wrist, and improves the working efficiency to a certain extent.
Description
Technical Field
The utility model belongs to the technical field of hardware and tools technique and specifically relates to a hammer that can twice strike is related to.
Background
In the field of processing and manufacturing of wooden furniture, the hammer is quite wide in application, and the fastening of the mortise and tenon structure is usually corrected by a worker knocking with the hammer, so that the internal stress of the furniture is reduced, and the cracking caused by interaction of non-phase contact pieces is reduced. The force of the hammer striking by the master is usually a small and repeated process, and the structural parts are in order through continuous vibration. The existing knocking hammer mainly achieves the damping effect by additionally arranging a rubber material for damping on the hammer head part of the hammer, and the effect only meets the requirement of small knocking force in the knocking process but does not achieve the purpose of reducing the knocking times. The wrist of a master worker is lifted up for many times, the wrist of the master worker feels extremely uncomfortable due to fatigue, and the working efficiency is reduced to a certain extent after the working time is prolonged.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the hammer capable of realizing secondary knocking achieves the effect of reducing the knocking times of a master worker.
In order to solve the technical problem, the utility model discloses a technical scheme be:
A hammer capable of realizing double knocking comprises a first hammer head, a second hammer head and a grab handle;
The first hammer head is fixedly connected to one end of the grab handle;
The second hammer head is rotatably connected to one end, close to the first hammer head, of the grab handle;
And a virtual circle where the rotating track of the second hammer head is positioned is tangent to the virtual central axis of the first hammer head.
Further, the second hammer head is fan-shaped;
The circle center of the sector is arranged on the grab handle.
Furthermore, the thickness of the thick bottom of the fan shape close to the edge is larger than that of the fan shape close to the center of the circle;
A plurality of slotted holes are formed in the fan shape.
Furthermore, the device also comprises a bearing and a fixed shaft;
The grab handle is provided with an installation platform;
The mounting table is provided with a yielding groove for rotating the second hammer head;
The fixed shaft is fixedly arranged on the mounting table, and the axis of the fixed shaft is vertical to the axis of the grab handle;
The second hammer head is rotatably arranged on the fixed shaft through the bearing.
Further, the device also comprises a spring;
One end of the spring is fixedly connected to one end, far away from the first hammer, of the grab handle; the other end of the spring is fixedly connected to the second hammer head.
Further, a first rubber layer is arranged on the outer surface of the first hammer head;
One end of the first rubber layer, which is close to the second hammer, is provided with a yielding groove for knocking by the second hammer; the shape of the abdicating groove is matched with the shape of the second hammer head.
Furthermore, a hemispherical knocking head is arranged at one end, which is in contact with the first hammer head, of the second hammer head;
One end of the first hammer head, which is close to the second hammer head, is provided with a groove matched with the knocking head.
Furthermore, a second rubber layer is sleeved on one end, far away from the first hammer, of the grab handle.
The beneficial effects of the utility model reside in that: the utility model provides a pair of hammer that can strike twice, including first tup, second tup and grab handle. The second hammer head is rotatably connected to one end, close to the first hammer head, of the grab handle, and a virtual circle where a rotating track of the second hammer head is located is tangent to a virtual central axis of the first hammer head. When knocking the mortise and tenon joint structure by using the device, the second hammer head is impacted with higher speed under the action of inertia under the action of the first hammer head contacted with the knocked object, so that the secondary knocking effect is achieved. The device reduces the knocking times of a master worker, relieves the fatigue degree of the master worker at the wrist, and improves the working efficiency to a certain extent.
Drawings
Fig. 1 is a first structural view of a double knock hammer in accordance with an embodiment of the present invention;
FIG. 2 is a second block diagram of a double knock hammer in accordance with an embodiment of the present invention;
FIG. 3 is a front view of a double knock hammer in accordance with an embodiment of the present invention;
Description of reference numerals:
1. A first ram; 2. a second hammer head; 3. a handle; 4, a bearing; 5. a fixed shaft; 6. an installation table; 7. a spring; 8. a first glue layer; 9. a knocking head; 10. and a second adhesive layer.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 3, a hammer capable of double-striking includes a first hammer head, a second hammer head and a handle;
The first hammer head is fixedly connected to one end of the grab handle;
The second hammer head is rotatably connected to one end, close to the first hammer head, of the grab handle;
And a virtual circle where the rotating track of the second hammer head is positioned is tangent to the virtual central axis of the first hammer head.
From the above description, the beneficial effects of the present invention are: the utility model provides a pair of hammer that can strike twice, including first tup, second tup and grab handle. The second hammer head is rotatably connected to one end, close to the first hammer head, of the grab handle, and a virtual circle where a rotating track of the second hammer head is located is tangent to a virtual central axis of the first hammer head. When knocking the mortise and tenon joint structure by using the device, the second hammer head is impacted with higher speed under the action of inertia under the action of the first hammer head contacted with the knocked object, so that the secondary knocking effect is achieved. The device reduces the knocking times of a master worker, relieves the fatigue degree of the master worker at the wrist, and improves the working efficiency to a certain extent.
Further, the second hammer head is fan-shaped;
The circle center of the sector is arranged on the grab handle.
As can be seen from the above description, the second hammer head is designed to be fan-shaped on one hand, in order to increase the mass of the second knocking hammer, the larger the mass of the object, the larger the inertia of the object, and the higher the efficiency of the secondary knocking; on the other hand, the rigidity of the second knocking hammer is improved, so that the second knocking hammer is more stable in the impacting process.
Furthermore, the thickness of the thick bottom of the fan shape close to the edge is larger than that of the fan shape close to the center of the circle;
A plurality of slotted holes are formed in the fan shape.
As can be seen from the above description, the second hammer head is designed to be in a spoke type with a thick edge, which aims to increase the rotational inertia of the second striking hammer, so that the second hammer head rotates more stably, and the rotational inertia of the second hammer head is also larger.
Furthermore, the device also comprises a bearing and a fixed shaft;
The grab handle is provided with an installation platform;
The mounting table is provided with a yielding groove for rotating the second hammer head;
The fixed shaft is fixedly arranged on the mounting table, and the axis of the fixed shaft is vertical to the axis of the grab handle;
The second hammer head is rotatably arranged on the fixed shaft through the bearing.
As can be seen from the above description, the bearing is used to reduce the friction force applied to the second ram when rotating. The purpose of the design of the mounting table is to heighten the rotation center of the second hammer head and prevent the second hammer head from interfering with the grab handle in the rotation process.
Further, the device also comprises a spring;
One end of the spring is fixedly connected to one end, far away from the first hammer, of the grab handle; the other end of the spring is fixedly connected to the second hammer head.
According to the description, the tension of the spring can keep the second hammer head separated from the first hammer head after each knocking, so that the problem that the first hammer head and the second hammer head are in a fit state when the next knocking is performed and the purpose of secondary knocking cannot be achieved is avoided.
Further, a first rubber layer is arranged on the outer surface of the first hammer head;
One end of the first rubber layer, which is close to the second hammer, is provided with a yielding groove for knocking by the second hammer; the shape of the abdicating groove is matched with the shape of the second hammer head.
From the above description, the first glue layer is designed to reduce damage to the surface of the wooden furniture during a strike.
Furthermore, a hemispherical knocking head is arranged at one end, which is in contact with the first hammer head, of the second hammer head;
One end of the first hammer head, which is close to the second hammer head, is provided with a groove matched with the knocking head.
According to the description, the grooves matched with the knocking heads are designed, so that the stress area is larger and the stress is more uniform when the second knocking head and the first knocking head knock.
Furthermore, a second rubber layer is sleeved on one end, far away from the first hammer, of the grab handle.
As can be seen from the above description, the second rubber layer can reduce the vibration of the hand during knocking, increase the friction force of the hand, and make the use more comfortable.
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is:
A hammer capable of double knocking comprises a first hammer head 1, a second hammer head 2 and a grab handle 3;
The first hammer head 1 is fixedly connected to one end of the grab handle 3;
The second hammer head 2 is rotatably connected to one end, close to the first hammer head 1, of the grab handle 3;
And a virtual circle of the rotation track of the second hammer head 2 is tangent to the virtual central axis of the first hammer head 1.
Specifically, the first hammer head 1, the second hammer head 2 and the grab handle 3 are made of 40 steel.
Preferably, the handle 3 is made of a pipe.
Referring to fig. 3, specifically, the second ram 2 is fan-shaped;
The circle center of the sector is arranged on the grab handle 3.
Referring to fig. 3, specifically, the thickness of the bottom near the edge of the sector is greater than the thickness of the sector near the center of the circle;
A plurality of slotted holes are formed in the fan shape.
Specifically, the second hammer 2 is subjected to shape modification after being cast by a die, and then subjected to quenching and tempering heat treatment after the shape modification is completed, so that the rigidity, the strength and the toughness of the second hammer 2 all meet the requirements of being balanced.
Referring to fig. 3, specifically, the present invention further includes a bearing 4 and a fixing shaft 5;
The grab handle 3 is provided with an installation table 6;
The mounting table 6 is provided with a yielding groove for the rotation of the second hammer head 2;
The fixed shaft 5 is fixedly arranged on the mounting table 6, and the axis of the fixed shaft 5 is vertical to the axis of the grab handle 3;
The second hammer head 2 is rotatably arranged on the fixed shaft 5 through the bearing 4.
Specifically, the bearing 4 is a cylindrical roller bearing with good impact resistance.
Specifically, the mounting table 6 is fixed on the handle 3 by welding.
Preferably, the diameters of the two ends of the fixing shaft are smaller than that of the middle section, so that the bearing 4 can be conveniently and fixedly mounted.
Specifically, the fixing shaft 5 may have threads formed at both ends of the fixing shaft 5, and nuts may be used to fix both ends of the fixing shaft 5 through the threads.
Referring to fig. 1 and 2, in particular, a spring 7 is further included;
One end of the spring 7 is fixedly connected to one end, far away from the first hammer head 1, of the grab handle 3; the other end of the spring 7 is fixedly connected to the second hammer head 2.
Specifically, the spring 7 is a tension spring with two ends replacing hooks; the second hammer head 2 is just pulled away from the first hammer head 1 by the elastic force and is preset by a preset distance.
Referring to fig. 1 and fig. 2, specifically, a first rubber layer 8 is further disposed on an outer surface of the first hammer head 1;
One end of the first rubber layer 8, which is close to the second hammer head 2, is provided with a yielding groove for knocking by the second hammer head 2; the shape of the abdicating groove is matched with the shape of the second hammer head 2.
Specifically, the first rubber layer 8 is made of urethane rubber.
Referring to fig. 1 and 2, specifically, a hemispherical striking head 9 is disposed at one end of the second hammer head 2, which is in contact with the first hammer head 1;
One end of the first hammer head 1 close to the second hammer head 2 is provided with a groove matched with the knocking head 9.
Referring to fig. 1 and fig. 2, specifically, a second rubber layer 10 is sleeved on an end of the grab handle 3 away from the first hammer head 1.
Specifically, the second rubber layer 10 is made of TPR rubber material.
To sum up, the utility model provides a pair of hammer that can strike twice, including first tup, second tup and grab handle. The second hammer head is rotatably connected to one end, close to the first hammer head, of the grab handle, and a virtual circle where a rotating track of the second hammer head is located is tangent to a virtual central axis of the first hammer head. When knocking the mortise and tenon joint structure by using the device, the second hammer head is impacted with higher speed under the action of inertia under the action of the first hammer head contacted with the knocked object, so that the secondary knocking effect is achieved. Furthermore, the second hammer head is designed into a spoke type with a thick edge, so that the rotational inertia of the second knocking hammer is increased, the second hammer head rotates more stably, and the rotational inertia of the second hammer head is also larger. The device reduces the knocking times of a master worker, relieves the fatigue degree of the master worker at the wrist, and improves the working efficiency to a certain extent.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (8)
1. The hammer capable of realizing secondary knocking is characterized by comprising a first hammer head, a second hammer head and a grab handle;
The first hammer head is fixedly connected to one end of the grab handle;
The second hammer head is rotatably connected to one end, close to the first hammer head, of the grab handle;
And a virtual circle where the rotating track of the second hammer head is positioned is tangent to the virtual central axis of the first hammer head.
2. A double rappable hammer according to claim 1 wherein said second hammer head is fan-shaped;
The circle center of the sector is arranged on the grab handle.
3. The double rappable hammer of claim 2 wherein said fan shape has a thicker base proximate an edge than a thickness of said fan shape proximate a center of said circle;
A plurality of slotted holes are formed in the fan shape.
4. The double rappable hammer of claim 1 further comprising a bearing and a stationary shaft;
The grab handle is provided with an installation platform;
The mounting table is provided with a yielding groove for rotating the second hammer head;
The fixed shaft is fixedly arranged on the mounting table, and the axis of the fixed shaft is vertical to the axis of the grab handle;
The second hammer head is rotatably arranged on the fixed shaft through the bearing.
5. The double rappable hammer of claim 1 further comprising a spring;
One end of the spring is fixedly connected to one end, far away from the first hammer, of the grab handle; the other end of the spring is fixedly connected to the second hammer head.
6. A double rappable hammer according to claim 1 wherein an outer surface of said first hammer head is further provided with a first rubber layer;
One end of the first rubber layer, which is close to the second hammer, is provided with a yielding groove for knocking by the second hammer; the shape of the abdicating groove is matched with the shape of the second hammer head.
7. The double-peenable hammer according to claim 1, wherein a hemispherical striking head is provided at an end of the second hammer head contacting the first hammer head;
One end of the first hammer head, which is close to the second hammer head, is provided with a groove matched with the knocking head.
8. A double rappable hammer according to claim 1 wherein an end of said grip remote from said first hammer head is sheathed with a second rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209028.7U CN211163800U (en) | 2019-12-11 | 2019-12-11 | Hammer capable of achieving secondary knocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209028.7U CN211163800U (en) | 2019-12-11 | 2019-12-11 | Hammer capable of achieving secondary knocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211163800U true CN211163800U (en) | 2020-08-04 |
Family
ID=71819747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922209028.7U Expired - Fee Related CN211163800U (en) | 2019-12-11 | 2019-12-11 | Hammer capable of achieving secondary knocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211163800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370673A (en) * | 2020-11-28 | 2021-02-19 | 安徽万航轨道交通装备有限公司 | Safety hammer equipped in rail transit train |
-
2019
- 2019-12-11 CN CN201922209028.7U patent/CN211163800U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370673A (en) * | 2020-11-28 | 2021-02-19 | 安徽万航轨道交通装备有限公司 | Safety hammer equipped in rail transit train |
| CN112370673B (en) * | 2020-11-28 | 2021-07-27 | 安徽万航轨道交通装备有限公司 | Safety hammer equipped in rail transit train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 Termination date: 20201211 |