CN115026755B - Multidirectional safety fixing device for knocking wrench - Google Patents
Multidirectional safety fixing device for knocking wrench Download PDFInfo
- Publication number
- CN115026755B CN115026755B CN202210661134.2A CN202210661134A CN115026755B CN 115026755 B CN115026755 B CN 115026755B CN 202210661134 A CN202210661134 A CN 202210661134A CN 115026755 B CN115026755 B CN 115026755B
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- Prior art keywords
- column
- ratchet
- bottom block
- fixing device
- handle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B19/00—Impact wrenches or screwdrivers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Emergency Lowering Means (AREA)
Abstract
The application discloses a multidirectional safe fixing device for a knocking wrench, which comprises a ratchet device, wherein the ratchet device comprises an upper ratchet, a lower ratchet, an inner ring and an outer ring, the fixing device is arranged outside the ratchet device and comprises a jaw, a middle rod and a bottom block, and the connecting device is arranged on one side of the fixing device and comprises a handle, a connecting nut and a connecting steel wire. According to the application, through the cooperation among the ratchet device, the fixing device and the connecting device, the position of the wrench can be fixed at a distance when the knocking wrench is used, the direction and the angle are not limited, and the safety when the knocking wrench is used is greatly improved.
Description
Technical Field
The application relates to the technical field of knocking wrenches, in particular to a multidirectional safe fixing device for a knocking wrench.
Background
Because the original design of the existing knocking wrench is not provided with a fixing device, people need to manually fix the wrench every time when the wrench is operated, the risk of personal injury is increased, the wrench cannot be fixed for some operators in narrow operation space, the wrench is easy to fall off, and the working efficiency is seriously affected.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present application has been made in view of the above and/or problems occurring in the prior art tapping wrenches.
Therefore, the problem to be solved by the application is that the knocking spanner is inconvenient to fix.
In order to solve the technical problems, the application provides the following technical scheme: a multi-azimuth safety fixing device for a knocking wrench comprises a ratchet device, a fixing device and a connecting device.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the ratchet device comprises an upper ratchet, a lower ratchet, an inner ring and an outer ring, wherein the upper ratchet is arranged at the top of the lower ratchet, the upper ratchet and the lower ratchet are arranged inside the inner ring, and the inner ring is arranged inside the outer ring;
the fixing device is arranged outside the ratchet device and comprises a jaw, a middle rod and a bottom block, two ends of the middle rod are connected with the jaw and the bottom block, and the ratchet device is arranged in the middle of the bottom block; the method comprises the steps of,
the connecting device is arranged on one side of the fixing device and comprises a handle, a connecting nut and a connecting steel wire, and the handle is fixedly connected with the connecting nut.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the ratchet device further comprises a connecting bent column, the connecting bent column is connected with the center of the upper ratchet wheel and the center of the lower ratchet wheel in a penetrating mode, and the connecting steel wire is connected with the top end of the connecting bent column in a penetrating mode.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the inner ring is provided with a through hole on one side, the inner side of the outer ring is provided with a reversing groove, the center of the bottom block is provided with a placing groove, and the outer ring is arranged in the placing groove.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the ratchet device further comprises a reversing piece, the reversing piece is arranged on one side of the inner ring and comprises a pawl, a spring, a fixing column and a reversing handle, the fixing column is fixedly connected with one side of the placing groove of the bottom block, the fixing column is arranged in the through hole, and the fixing column penetrates through the spring.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: one end of the spring is fixed on one side of the placing groove, the other end of the spring is fixed at the bottom of the pawl, and the reversing handle is arranged at the top of the pawl.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the reversing handle comprises a moving column and a steering column, wherein the fixed column is connected with the moving column in a penetrating mode, and the steering column is arranged at the top of the moving column.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the movable column is provided with a rotary groove, and the rotary groove is arranged at the bottom of the steering column.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the jaw is arranged at one end of the middle rod, the jaw is in a circular ring shape, an inner dodecagon hole is formed in the jaw, the bottom block is arranged at the other end of the middle rod, and a hanging hole is further formed in one end of the bottom block.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the bottom of the handle is fixedly connected with the connecting nut, and the connecting steel wire is connected with the connecting nut and the connecting bent column in a penetrating manner.
As a preferable scheme of the multi-azimuth safety fixing device of the knocking spanner, the application comprises the following steps: the connecting device further comprises two limiting nuts, and the limiting nuts are fixedly connected to two ends of the connecting steel wire.
The application has the beneficial effects that: according to the application, through the cooperation among the ratchet device, the fixing device and the connecting device, the position of the wrench can be fixed at a distance when the knocking wrench is used, the direction and the angle are not limited, and the safety when the knocking wrench is used is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a block diagram of a multi-directional safety fixture for a striking wrench.
Fig. 2 is a structural view of a fixing device of the multi-azimuth safety fixing device of the knocking wrench.
Fig. 3 is a structural view of a connecting device of the multi-azimuth safety fixing device of the knocking wrench.
FIG. 4 is a block diagram of a ratchet mechanism for a multi-aspect safety fixture for a striking wrench.
FIG. 5 is a view showing another state of the ratchet device of the multi-directional safety fixing device of the knocking wrench.
Fig. 6 is a block diagram of the multi-directional safety fixture of the striking wrench.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 4, a multi-aspect safety fixture for a striking wrench is provided for a first embodiment of the present application, and includes a ratchet device 100, a fixture 200, and a connection device 300.
Specifically, the ratchet device 100 includes an upper ratchet 101, a lower ratchet 102, an inner ring 103 and an outer ring 104, the upper ratchet 101 is disposed at the top of the lower ratchet 102, the upper ratchet 101 and the lower ratchet 102 are disposed inside the inner ring 103, and the inner ring 103 is disposed inside the outer ring 104;
the upper ratchet 101 is attached to the lower ratchet 102, the directions of the two ratchets are opposite, the inner ring 103 limits the displacement of the ratchets, and the outer ring limits the rotation direction of the ratchets.
Specifically, the fixing device 200 is arranged outside the ratchet device 100, and comprises a jaw 201, a middle rod 202 and a bottom block 203, wherein two ends of the middle rod 202 are connected with the jaw 201 and the bottom block 203, and the ratchet device 100 is arranged in the middle of the bottom block 203;
jaw 201 is used to capture a nut to be loosened and bottom block 203 is used to be knocked down while providing a place for ratchet device 100.
Specifically, the connecting device 300 is disposed on one side of the fixing device 200, and includes a handle 301, a connecting nut 302, and a connecting steel wire 303, where the handle 301 and the connecting nut 302 are fixedly connected.
A connecting wire 303 connects the ratchet device 100 and the connecting nut 302 for tightening and securing the striking wrench.
When in use, the upper ratchet wheel 101 is attached to the lower ratchet wheel 102, the directions of the two ratchet wheels are opposite, the inner ring 103 limits the displacement of the ratchet wheels, and the outer ring limits the rotation direction of the ratchet wheels. Jaw 201 is used to capture a nut to be loosened and bottom block 203 is used to be knocked down while providing a place for ratchet device 100. A connecting wire 303 connects the ratchet device 100 and the connecting nut 302 for tightening and securing the striking wrench.
Example 2
Referring to fig. 1 to 6, a second embodiment of the present application is based on the previous embodiment.
Specifically, the ratchet device 100 further includes a connecting bent column 105, the connecting bent column 105 penetrates through the center of the upper ratchet 101 and the lower ratchet 102, and the connecting steel wire 303 penetrates through the top end of the connecting bent column 105.
One end of the connecting bent column 105 is connected with a connecting steel wire 303, when the jaw 201 is fixed with a loose nut, the position of the connecting bent column 105 is adjusted, and then the handle 301 is pulled tightly, so that the knocking wrench can be fixed.
Specifically, one side of the inner ring 103 is provided with a through hole H1, the inner side of the outer ring 104 is provided with a reversing groove H2, the center of the bottom block 203 is provided with a placing groove H3, the outer ring 104 is arranged in the placing groove H3,
the through hole H1 of the inner ring 103 and the reversing groove H2 of the outer ring 104 are positioned at the same position, the inner ring 103 and the outer ring 104 are positioned in the placing groove H3, and the reversing groove H2 is Z-shaped.
Specifically, the ratchet device 100 further includes a reversing element 106, which is disposed on one side of the inner ring 103, and includes a pawl 106a, a spring 106b, a fixing column 106c, and a reversing handle 106d, where the fixing column 106c is fixedly connected to one side of the placement groove H3 of the bottom block 203, the fixing column 106c is disposed inside the through hole H1, and the fixing column 106c penetrates through the spring 106b.
The reversing piece 106 is used for controlling the rotation direction of the two ratchets, and a convex block is arranged on one side of the middle part of the fixed column 106 c.
Specifically, one end of the spring 106b is fixed to one side of the placement groove H3, the other end of the spring 106b is fixed to the bottom of the pawl 106a, and the reversing handle 106d is disposed on the top of the pawl 106 a.
When the spring 106b is in the default position, one end of the pawl 106a is positioned in the middle of the reversing groove H2, the other end of the pawl 106a is in contact with the interface of the two ratchets, and at the moment, the pawl 106a does not lock the ratchets, and the two ratchets can rotate in any direction.
Specifically, the reversing handle 106d includes a moving column 106d-1 and a steering column 106d-2, the fixed column 106c is connected to the moving column 106d-1 in a penetrating manner, and the steering column 106d-2 is disposed on top of the moving column 106 d-1.
The travel post 106d-1 is a hollow tube and extends through the middle of the steering post 106 d-2.
Specifically, the moving column 106d-1 is provided with a rotation groove H4, and the rotation groove H4 is provided at the bottom of the steering column 106 d-2.
The rotary groove H4 is divided into three sections, namely a notch with the bottom facing left, a notch with the top facing right and a notch with the front surface connected with the top of the bottom. The rotation groove H4 is internally provided with a bump at one side of the middle part of the fixed column 106 c.
When the spring 106b is used, by default, no extra force is applied to the spring 106b, one end of the pawl 106a is positioned in the middle of the reversing groove H2, the other end of the pawl 106a is in contact with the interface of the two ratchets, the pawl 106a can not lock the ratchets, the two ratchets can rotate in any direction, when the rotation direction needs to be locked, two options exist, namely, the pawl 106a is pressed downwards when the reversing handle 106d is pressed downwards, one end of the pawl 106a rotates in the reversing groove H2, the pawl 106a moves to the bottom of the reversing groove H2, the reversing handle 106d is rotated clockwise again, a lug on one side of the middle of the fixing column 106c is fixed in a notch on the top of the rotating groove H4 towards the right, the hand is released, one end of the pawl 106a is positioned at the bottom of the reversing groove H2, the other end of the pawl contacts the lower ratchet 102, and the connecting bent column 105 can only rotate anticlockwise.
Similarly, the reversing handle 106d may be pulled up to the top and the reversing handle 106d may be rotated counterclockwise by 90 degrees, so that the connecting leg 105 may only be rotated clockwise.
Example 3
Referring to fig. 1 to 6, a third embodiment of the present application is based on the first two embodiments.
Specifically, jaw 201 is disposed at one end of middle rod 202, jaw 201 is ring-shaped, an inner dodecagonal hole H5 is disposed inside, bottom block 203 is disposed at the other end of middle rod 202, and a hanging hole H6 is further disposed at one end of bottom block 203.
Jaw 201 is used to secure a nut to be loosened.
Specifically, the bottom of the handle 301 is fixedly connected with the connecting nut 302, and the connecting steel wire 303 penetrates through the connecting nut 302 and the connecting bent column 105.
The connecting steel wire 303 connects the connecting bent post 105 and the connecting nut 302, so that workers do not need to directly contact with a knocking spanner, and the possibility of accidents is reduced.
Specifically, the connecting device 300 further includes two limiting nuts 304, and the limiting nuts 304 are fixedly connected to two ends of the connecting steel wire 303.
Limiting nuts 304 are arranged at two ends of the connecting steel wires 303, so that the connection strength between the connecting steel wires is enhanced, and broken wires in the using process are avoided.
When the spring 106b is used, in default, no extra force is applied to the spring 106b, one end of the pawl 106a is positioned in the middle of the reversing groove H2, the other end of the pawl 106a is in contact with the interfaces of the two ratchets, the pawl 106a cannot lock the ratchets at the moment, the two ratchets can rotate in any direction, when the rotation direction needs to be locked, two options exist, namely, the pawl 106a is pressed down to the bottom when the reversing handle 106d is pressed down, meanwhile, one end of the pawl 106a rotates in the reversing groove H2, the pawl 106a moves to the bottom of the reversing groove H2, the reversing handle 106d rotates clockwise at the moment, a lug on one side of the middle of the fixing column 106c is fixed in a notch facing to the right at the top of the rotating groove H4, the hand is released, one end of the pawl 106a is positioned at the bottom of the reversing groove H2, the other end of the pawl contacts the lower ratchet 102, and the connecting bent column 105 can only rotate anticlockwise at the moment. Similarly, the reversing handle 106d may be pulled up to the top and the reversing handle 106d may be rotated counterclockwise by 90 degrees, so that the connecting leg 105 may only be rotated clockwise. Jaw 201 is used to secure a nut to be loosened. The connecting steel wire 303 connects the connecting bent post 105 and the connecting nut 302, so that workers do not need to directly contact with a knocking spanner, and the possibility of accidents is reduced. Limiting nuts 304 are arranged at two ends of the connecting steel wires 303, so that the connection strength between the connecting steel wires is enhanced, and broken wires in the using process are avoided.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (7)
1. Multidirectional safe fixing device for knocking wrench is characterized in that: comprising the steps of (a) a step of,
the ratchet device (100) comprises an upper ratchet (101), a lower ratchet (102), an inner ring (103) and an outer ring (104), wherein the upper ratchet (101) is arranged at the top of the lower ratchet (102), the upper ratchet (101) and the lower ratchet (102) are arranged inside the inner ring (103), and the inner ring (103) is arranged inside the outer ring (104);
the fixing device (200) is arranged outside the ratchet device (100) and comprises a jaw (201), a middle rod (202) and a bottom block (203), two ends of the middle rod (202) are connected with the jaw (201) and the bottom block (203), and the ratchet device (100) is arranged in the middle of the bottom block (203); the method comprises the steps of,
the connecting device (300) is arranged on one side of the fixing device (200) and comprises a handle (301), a connecting nut (302) and a connecting steel wire (303), and the handle (301) is fixedly connected with the connecting nut (302);
the ratchet device (100) further comprises a connecting bent column (105), the connecting bent column (105) is connected with the centers of the upper ratchet wheel (101) and the lower ratchet wheel (102) in a penetrating mode, and the connecting steel wire (303) is connected with the top end of the connecting bent column (105) in a penetrating mode;
a through hole (H1) is formed in one side of the inner ring (103), a reversing groove (H2) is formed in the inner side of the outer ring (104), a placing groove (H3) is formed in the center of the bottom block (203), and the outer ring (104) is arranged in the placing groove (H3);
the ratchet device (100) also comprises a reversing piece (106) which is arranged on one side of the inner ring (103) and comprises a pawl (106 a), a spring (106 b), a fixed column (106 c) and a reversing handle
(106d) The fixing column (106 c) is fixedly connected with one side of the placing groove (H3) of the bottom block (203), the fixing column (106 c) is arranged inside the through hole (H1), and the fixing column (106 c) penetrates through the spring (106 b).
2. The multi-azimuth safety fixture for a striking wrench according to claim 1, wherein: one end of the spring (106 b) is fixed on one side of the placing groove (H3), the other end of the spring (106 b) is fixed at the bottom of the pawl (106 a), and the reversing handle (106 d) is arranged at the top of the pawl (106 a).
3. The multi-azimuth safety fixture for a striking wrench according to claim 2, wherein: the reversing handle (106 d) comprises a moving column (106 d-1) and a steering column (106 d-2), wherein the fixed column (106 c) is connected with the moving column (106 d-1) in a penetrating mode, and the steering column (106 d-2) is arranged at the top of the moving column (106 d-1).
4. A multi-directional safety fixture for a striking wrench as claimed in claim 3, wherein: the movable column (106 d-1) is provided with a rotary groove (H4), and the rotary groove (H4) is arranged at the bottom of the steering column (106 d-2).
5. The multi-aspect safety fixture for a striking wrench according to claim 3 or 4, wherein: the jaw (201) set up in middle pole (202) one end, jaw (201) are the ring shape, and inside is equipped with interior dodecagonal hole (H5), bottom block (203) set up in middle pole (202) other end, bottom block (203) one end still is equipped with hanging hole (H6).
6. The multi-aspect safety fixture for a striking wrench of claim 5, wherein: the bottom of the handle (301) is fixedly connected with the connecting nut (302), and the connecting steel wire (303) is connected with the connecting nut (302) and the connecting bent column (105) in a penetrating mode.
7. The multi-aspect safety fixture for a striking wrench according to any one of claims 4 or 6, wherein: the connecting device (300) further comprises two limiting nuts (304), and the limiting nuts (304) are fixedly connected to two ends of the connecting steel wire (303).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661134.2A CN115026755B (en) | 2022-06-13 | 2022-06-13 | Multidirectional safety fixing device for knocking wrench |
| DE202023102043.7U DE202023102043U1 (en) | 2022-06-13 | 2023-04-20 | Multidirectional safety attachment device for impact wrenches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661134.2A CN115026755B (en) | 2022-06-13 | 2022-06-13 | Multidirectional safety fixing device for knocking wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115026755A CN115026755A (en) | 2022-09-09 |
| CN115026755B true CN115026755B (en) | 2023-11-07 |
Family
ID=83124780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210661134.2A Active CN115026755B (en) | 2022-06-13 | 2022-06-13 | Multidirectional safety fixing device for knocking wrench |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115026755B (en) |
| DE (1) | DE202023102043U1 (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474091A (en) * | 1982-06-10 | 1984-10-02 | Norman Russ | Tap wrench |
| CN102407502A (en) * | 2011-12-02 | 2012-04-11 | 莱芜钢铁股份有限公司 | Knocking spanner |
| CN203485095U (en) * | 2013-09-27 | 2014-03-19 | 单体琴 | Balance-adjusting wrench anti-disengaging device of pumping unit |
| CN104786186A (en) * | 2015-05-09 | 2015-07-22 | 李彪 | Knocking spanner protection shield |
| CN210361104U (en) * | 2019-07-03 | 2020-04-21 | 惠州大亚湾远大石化机械有限公司 | Knocking wrench holder |
| CN211414943U (en) * | 2019-10-30 | 2020-09-04 | 中国石油天然气股份有限公司 | Knocking spanner |
| CN211517327U (en) * | 2019-12-26 | 2020-09-18 | 上海瑞迈企业管理咨询有限公司 | Holder for fixing knocking wrench |
| CN212665910U (en) * | 2020-04-14 | 2021-03-09 | 中国石油天然气股份有限公司 | Nut dismounting tool |
| CN112518641A (en) * | 2020-12-14 | 2021-03-19 | 中船动力有限公司 | Double-ratchet wrench |
| CN215920293U (en) * | 2021-05-18 | 2022-03-01 | 利华益利津炼化有限公司 | Novel knocking wrench |
-
2022
- 2022-06-13 CN CN202210661134.2A patent/CN115026755B/en active Active
-
2023
- 2023-04-20 DE DE202023102043.7U patent/DE202023102043U1/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474091A (en) * | 1982-06-10 | 1984-10-02 | Norman Russ | Tap wrench |
| CN102407502A (en) * | 2011-12-02 | 2012-04-11 | 莱芜钢铁股份有限公司 | Knocking spanner |
| CN203485095U (en) * | 2013-09-27 | 2014-03-19 | 单体琴 | Balance-adjusting wrench anti-disengaging device of pumping unit |
| CN104786186A (en) * | 2015-05-09 | 2015-07-22 | 李彪 | Knocking spanner protection shield |
| CN210361104U (en) * | 2019-07-03 | 2020-04-21 | 惠州大亚湾远大石化机械有限公司 | Knocking wrench holder |
| CN211414943U (en) * | 2019-10-30 | 2020-09-04 | 中国石油天然气股份有限公司 | Knocking spanner |
| CN211517327U (en) * | 2019-12-26 | 2020-09-18 | 上海瑞迈企业管理咨询有限公司 | Holder for fixing knocking wrench |
| CN212665910U (en) * | 2020-04-14 | 2021-03-09 | 中国石油天然气股份有限公司 | Nut dismounting tool |
| CN112518641A (en) * | 2020-12-14 | 2021-03-19 | 中船动力有限公司 | Double-ratchet wrench |
| CN215920293U (en) * | 2021-05-18 | 2022-03-01 | 利华益利津炼化有限公司 | Novel knocking wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115026755A (en) | 2022-09-09 |
| DE202023102043U1 (en) | 2023-05-15 |
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