CN216104397U - Friction drive conveying mechanism and conveying device - Google Patents
Friction drive conveying mechanism and conveying device Download PDFInfo
- Publication number
- CN216104397U CN216104397U CN202122278565.4U CN202122278565U CN216104397U CN 216104397 U CN216104397 U CN 216104397U CN 202122278565 U CN202122278565 U CN 202122278565U CN 216104397 U CN216104397 U CN 216104397U
- Authority
- CN
- China
- Prior art keywords
- swing arm
- side swing
- driving
- driven
- friction
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000007723 transport mechanism Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model discloses a friction driving conveying mechanism and a conveying device, wherein the friction driving conveying mechanism comprises a driving wheel, a driven wheel, a driving side swing arm, a driven side swing arm and an elastic piece, the driving side swing arm is rotatably connected with the driven side swing arm, the elastic piece is arranged between the driving side swing arm and the driven side swing arm, the driving wheel and the driven wheel are respectively arranged through the driving side swing arm and the driven side swing arm, the driving wheel and the driven wheel clamp the conveying piece, contact friction is formed between the driving wheel and the conveying piece, the driving wheel rotates to drive the conveying piece to move, the driven wheel rotates along with the movement of the conveying piece, wherein provide the centre gripping effort through the elastic component, the one end and the initiative side swing arm butt of elastic component, the other end and regulating part butt, driven side swing arm and regulating part threaded connection revolve wrong regulating part and can adjust the compression volume of elastic component, convenient operation, this utility model is used for the industry to carry technical field.
Description
Technical Field
The utility model relates to the technical field of industrial conveying, in particular to a friction drive conveying mechanism and a conveying device.
Background
Friction type conveying is a common conveying mode in an industrial welding workshop, wherein the most key mechanism is a friction driving mechanism for providing conveying power, a driving wheel is usually driven by a motor, a driven wheel is arranged on the other side of the friction driving mechanism, and a conveying piece is clamped by the driving wheel and the driven wheel through external clamping force, so that conveying driving of the conveying piece is realized.
In the related art, the external clamping force is mainly provided in a cylinder clamping type and a spring pressing type, the cylinder clamping type is sensitive to pressure change, the clamping force fluctuation is easy to generate, and the conveying beat is influenced to a certain extent, and the problem can be avoided by the spring pressing type; in addition, for the connection of the motor and the driving wheel, the existing mode is a motor flange mounting mode, the distance between the driving wheel and the output shaft surface of the motor is far, the radial load borne by the motor shaft is large, and under the condition that the driving force of the motor can be satisfied, the specification of a first motor is required to be selected due to the problem of the radial load of the motor shaft, so that waste is caused.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to at least one of the problems of the prior art, and provides a friction-driven conveying mechanism and a conveying device, which facilitate adjustment of the compression amount of an elastic member.
According to an embodiment of the first aspect of the present invention, there is provided a friction drive conveying mechanism, including:
the driving wheel and the driven wheel are used for clamping the conveying piece to form friction contact and rotationally driving the conveying piece to move;
the driving side swing arm is rotatably connected with the driven side swing arm, the driving wheel is rotatably arranged on the driving side swing arm, and the driven wheel is rotatably arranged on the driven side swing arm; and
the elastic piece is arranged between the driving side swing arm and the driven side swing arm and used for providing acting force for clamping the conveying piece by the driving wheel and the driven wheel; wherein,
one of them of initiative side swing arm driven side swing arm with the one end butt of elastic component, install the regulating part on another, the regulating part with the other end butt of elastic component installs the regulating part the initiative side swing arm or driven side swing arm with regulating part threaded connection.
The friction drive conveying mechanism at least has the following beneficial effects: install the action wheel respectively and follow the driving wheel through initiative side swing arm and driven side swing arm, the action wheel with carry the piece from the driving wheel centre gripping, and carry and form contact friction between the piece, the action wheel is rotatory to be driven and carries the piece and remove, it is rotatory thereupon from the driving wheel, wherein provide the centre gripping effort through the elastic component, the one end and the initiative side swing arm or the driven side swing arm butt of elastic component, the other end and regulating part butt twist the regulating part soon and can adjust the compression capacity of elastic component, convenient operation.
According to the friction drive conveying mechanism of the embodiment of the first aspect of the utility model, one of the driving side swing arm and the driven side swing arm is provided with the adjusting piece, the other one of the driving side swing arm and the driven side swing arm is provided with the guide piece, and the elastic piece is arranged on the guide piece in a penetrating mode.
According to the friction drive conveying mechanism of the embodiment of the first aspect of the utility model, the adjuster includes a screw portion fixedly connected to the end surface portion, and an end surface portion abutting against the elastic member, the screw portion passing through and being screwed to the driving side swing arm or the driven side swing arm.
According to the friction drive conveying mechanism provided by the embodiment of the first aspect of the utility model, the friction drive conveying mechanism comprises a limiting piece, the limiting piece is arranged between the driving side swing arm and the driven side swing arm, and the driving side swing arm and the driven side swing arm are respectively contacted with the limiting piece, so that a preset distance is formed between the driving wheel and the driven wheel, and the conveying piece can conveniently pass through the preset distance.
According to the friction drive conveying mechanism provided by the embodiment of the first aspect of the utility model, the limiting piece comprises a limiting seat, a first limiting piece and a second limiting piece, the first limiting piece is detachably connected with one side of the limiting seat, and the second limiting piece is detachably connected with the other side of the limiting seat.
According to the friction drive conveying mechanism provided by the embodiment of the first aspect of the utility model, the friction drive conveying mechanism comprises a threaded piece, the threaded piece is in threaded connection with the driving side swing arm, and the threaded piece can be screwed and adjusted to be abutted against the driven side swing arm so as to expand the driving side swing arm and the driven side swing arm outwards.
According to the friction drive conveying mechanism provided by the embodiment of the first aspect of the utility model, the driving side swing arm is provided with a third limiting block, the driven side swing arm is provided with a fourth limiting block, and the third limiting block and the fourth limiting block are used for limiting the limiting part after being worn and contacting the worn limiting part;
under the state that the driving side swing arm and the driven side swing arm are in normal contact with the limiting part respectively, a gap is formed between the third limiting block and the limiting part, and a gap is formed between the fourth limiting block and the limiting part.
According to the friction drive conveying mechanism provided by the embodiment of the first aspect of the utility model, the friction drive conveying mechanism comprises a motor and a mounting seat, the driving wheel is fixedly connected with an output shaft of the motor, the driving wheel is close to or attached to an output shaft surface of the motor, the mounting seat is mounted on the outer side surface of the driving side swing arm, and the motor is fixedly connected with the side surface of the mounting seat.
According to a second aspect of the present invention, there is provided a conveyor apparatus comprising at least one friction-driven conveyor mechanism as described above.
According to the conveying device provided by the embodiment of the second aspect of the utility model, the conveying device further comprises a friction rod and a trolley, the friction rod is the conveying piece, the bottom of the trolley is fixedly connected with the friction rod, and a driving wheel and a driven wheel of the friction driving conveying mechanism clamp the friction rod to drive the trolley to move.
Drawings
The utility model is further described below with reference to the accompanying drawings and examples;
FIG. 1 is a schematic structural view of a friction drive conveying mechanism according to an embodiment of the present invention;
FIG. 2 is a front view of a friction drive conveyor mechanism according to an embodiment of the present invention;
FIG. 3 is a top view of a friction drive conveyor mechanism according to an embodiment of the utility model;
FIG. 4 is an enlarged schematic view of a portion A of the friction drive conveyor mechanism of FIG. 3 according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a friction-driven conveying mechanism clamping a friction rod for conveying according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a conveying apparatus according to an embodiment of the present invention;
reference numerals: the driving wheel 100, the driven wheel 200, the driving side swing arm 300, the third limit block 310, the driven side swing arm 400, the fourth limit block 410, the elastic member 510, the adjusting member 520, the screw portion 521, the end surface portion 522, the guide member 530, the nut 540, the limit member 600, the limit seat 610, the first limit block 620, the second limit block 630, the motor 710, the mounting seat 720, the base 800, the hinge shaft 810, the screw 900, the friction lever 10, and the trolley 20.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of 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 thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 5, an embodiment of the present invention provides a friction-driven conveying mechanism, including a driving wheel 100, a driven wheel 200, a driving-side swing arm 300, a driven-side swing arm 400, an elastic element 510, and a base 800, where the driving wheel 100 and the driven wheel 200 are used for clamping a conveying element to form a friction contact and rotate to drive the conveying element to move; the driving side swing arm 300 and the driven side swing arm 400 are rotatably connected to a hinge shaft 810 of the base 800 and can rotate around the hinge shaft 810, the driving wheel 100 is rotatably arranged on the driving side swing arm 300, and the driven wheel 200 is rotatably arranged on the driven side swing arm 400; elastic component 510 is set up between driving side swing arm 300 and driven side swing arm 400 for provide action wheel 100 and follow driving wheel 200 and centre gripping the effort of conveying the piece, specifically, elastic component 510 adopts the spring, and driving side swing arm 300 and the one end butt of elastic component 510 install regulating part 520 on the driven side swing arm 400, and regulating part 520 and the other end butt of elastic component 510, driven side swing arm 400 and regulating part 520 threaded connection.
The friction drive conveying mechanism of this embodiment, install action wheel 100 and follow driving wheel 200 respectively through initiative side swing arm 300 and driven side swing arm 400, action wheel 100 and follow driving wheel 200 centre gripping conveying member, and form the contact friction between the conveying member, action wheel 100 is rotatory to drive the conveying member and is removed, follow driving wheel 200 and follow the driven rotation of the removal of conveying member, wherein provide the centre gripping effort through elastic component 510, the one end and the initiative side swing arm 300 butt of elastic component 510, the other end and regulating part 520 butt, twist the decrement that regulating part 520 can adjust elastic component 510 soon, and convenient operation.
It is understood that the conveying member may be a rod or other shape-structure member, which can move under the friction force as long as it can form contact friction with the driving wheel 100 and the driven wheel 200.
Referring to fig. 3, in particular, in some embodiments, the adjuster 520 includes a screw portion 521 and an end surface portion 522, the screw portion 521 is fixedly connected to the end surface portion 522, the end surface portion 522 is located at the inner side and abuts against the elastic member 510, the screw portion 521 passes through and is screwed to the driven-side swing arm 400, a nut 540 cooperating with the screw portion 521 may be further provided, and the nut 540 may prevent the adjuster 520 from being loosened.
In some embodiments, the driving side swing arm 300 is provided with a guide 530, the guide 530 is rod-shaped, the elastic member 510 is disposed on the guide 530, and the guide 530 can guide the expansion and contraction of the elastic member 510, so as to prevent the elastic member 510 from twisting, and ensure the compression amount of the elastic member, i.e., the accuracy of the clamping force.
It is understood that, as an alternative, the adjuster 520 may be installed on the driving side swing arm 300, the adjuster 520 being screw-coupled with the driving side swing arm 300 such that one end of the elastic member 510 abuts against the driven side swing arm 400 and the other end abuts against the end surface portion 522 of the adjuster 520, and accordingly, the guide 530 is installed on the driven side swing arm 400.
Referring to fig. 1 to 3, in some embodiments, the friction-driven conveying mechanism includes a motor 710 and a mounting seat 720, the motor 710 drives the driving wheel 100 to rotate, the driving wheel 100 is fixedly connected to an output shaft of the motor 710, and the driving wheel 100 is close to or attached to an output shaft surface (an end surface through which the output shaft passes) of the motor 710, so that a force arm of the conveying member acting on the output shaft of the motor 710 through the driving wheel 100 can be minimized, thereby reducing a load of the motor 710 to the maximum extent. Due to the installation position of the driving wheel 100, the motor 710 is installed in a side surface installation mode, the motor 710 is installed through the installation seat 720, the installation seat 720 is installed on the outer side surface of the driving side swing arm 300, and the motor 710 is fixedly connected with the side surface of the installation seat 720.
In some embodiments, the friction-driven conveying mechanism includes a limiting member 600, the limiting member 600 is disposed between the driving-side swing arm 300 and the driven-side swing arm 400, the limiting member 600 and the elastic member 510 are respectively disposed at two sides of the hinge shaft 810, the limiting member 600 is mounted on the base 800, and the driving-side swing arm 300 and the driven-side swing arm 400 are respectively in contact with the limiting member 600, so that an initial predetermined distance is formed between the driving wheel 100 and the driven wheel 200 to facilitate the conveying member to pass through.
Referring to fig. 4, specifically, the limiting member 600 includes a limiting seat 610, a first limiting block 620 and a second limiting block 630, the limiting seat 610 is fixedly mounted on the base 800, the first limiting block 620 is detachably connected to one side of the limiting seat 610, and the second limiting block 630 is detachably connected to the other side of the limiting seat 610, and may specifically adopt a bolt connection. In an initial state, the driving side swing arm 300 contacts with the first limit block 620, the driven side swing arm 400 contacts with the second limit block 630, when the conveying member enters between the driving wheel 100 and the driven wheel 200, the driving side swing arm 300 is separated from the first limit block 620, and the driven side swing arm 400 is separated from the second limit block 630, so that the elastic force of the elastic member 510 is applied to the conveying member, and under the driving action of the motor 710, the friction force required for the movement of the conveying member is generated.
When the elastic member 510 is installed for the first time, the driving side swing arm 300 is manually rotated to be in contact with the first limiting block 620, the driven side swing arm 400 is manually rotated to be in contact with the second limiting block 630, and the elastic member 510 is placed at the installation position between the driving side swing arm 300 and the driven side swing arm 400 in a state of not needing to be compressed, so that quick and convenient installation is realized; after installation, the adjustment member 520 can be quickly adjusted to the desired amount of resilient compression.
In some embodiments, a third limiting block 310 is disposed on the inner side of the driving side swing arm 300, a fourth limiting block 410 is disposed on the inner side of the driven side swing arm 400, the third limiting block 310 and the fourth limiting block 410 are detachably mounted, and the third limiting block 310 and the fourth limiting block 410 are used for limiting the position of the worn position-limiting member 600 by contacting the worn position-limiting member 600 after the position-limiting member 600 is worn; in a state where the driving-side swing arm 300 and the driven-side swing arm 400 are in normal contact with the limiting member 600, respectively, a gap is formed between the third limiting block 310 and the limiting member 600, and a gap is formed between the fourth limiting block 410 and the limiting member 600.
Because the driving side swing arm 300 and the driven side swing arm 400 need to frequently contact with the first limiting block 620 and the second limiting block 630 of the limiting member 600, the first limiting block 620 and the second limiting block 630 are easily worn excessively or damaged, and further the distance between the driving wheel 100 and the driven wheel 200 is too small, so that the conveying piece cannot enter, or the part is damaged due to overlarge impact during entering. A gap is formed between the third stopper 310 and the stopper 600 in a state where the driving side swing arm 300 is normally in contact with the first stopper 620, and a gap is formed between the fourth stopper 410 and the stopper 600 in a state where the driven side swing arm 400 is normally in contact with the second stopper 630; when the first limiting block 620 and the second limiting block 630 are damaged or worn to a certain degree, the third limiting block 310 contacts with the limiting seat 610, the fourth limiting block 410 contacts with the limiting seat 610, and at the moment, the gap between the driving wheel 100 and the driven wheel 200 can still meet the requirement of entering of conveying parts, so that secondary limiting is realized, and the conveying stability is ensured.
In some embodiments, the friction drive mechanism includes a screw 900, the screw 900 is in threaded connection with the driving side swing arm 300, and the screw 900 is rotatably adjustable to abut against the driven side swing arm 400 to outwardly brace the driving side swing arm 300 and the driven side swing arm 400. When the first limiting block 620 and the second limiting block 630 are worn and need to be replaced, the driving side swing arm 300 and the driven side swing arm 400 are opened outwards by screwing the screw thread piece 900, so that the first limiting block 620 and the second limiting block 630 are not stressed, and the limiting block 600 can be detached, replaced and installed conveniently.
Referring to fig. 6, an embodiment of the present invention further provides a conveying apparatus, including at least one friction-driven conveying mechanism as described above. The conveying device comprising the friction-driven conveying mechanism facilitates adjustment of the compression amount of the elastic member 510 of the friction-driven conveying mechanism.
In some embodiments, the conveying device further includes a friction rod 10 and a trolley 20, the friction rod 10 is the conveying member, the bottom of the trolley 20 is fixedly connected to the friction rod 10, a driving wheel 100 and a driven wheel 200 of the friction-driven conveying mechanism grip the friction rod 10 to drive the friction rod 10 and the trolley 20 to move, and parts or materials to be conveyed can be placed on the trolley 20.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A friction drive conveyor mechanism, comprising:
the driving wheel and the driven wheel are used for clamping the conveying piece to form friction contact and rotationally driving the conveying piece to move;
the driving side swing arm is rotatably connected with the driven side swing arm, the driving wheel is rotatably arranged on the driving side swing arm, and the driven wheel is rotatably arranged on the driven side swing arm; and
the elastic piece is arranged between the driving side swing arm and the driven side swing arm and used for providing acting force for clamping the conveying piece by the driving wheel and the driven wheel; wherein,
one of them of initiative side swing arm driven side swing arm with the one end butt of elastic component, install the regulating part on another, the regulating part with the other end butt of elastic component installs the regulating part the initiative side swing arm or driven side swing arm with regulating part threaded connection.
2. The friction drive conveyor mechanism of claim 1, wherein: one of the driving side swing arm and the driven side swing arm is provided with the adjusting piece, the other one is provided with a guide piece, and the elastic piece is arranged on the guide piece in a penetrating mode.
3. The friction drive conveyor mechanism of claim 1, wherein: the regulating part comprises a screw part and an end surface part, the screw part is fixedly connected with the end surface part, the end surface part is abutted to the elastic part, and the screw part penetrates through and is in threaded connection with the driving side swing arm or the driven side swing arm.
4. A friction drive conveyor mechanism as in any one of claims 1 to 3 wherein: the friction driving conveying mechanism comprises a limiting part, the limiting part is arranged between the driving side swing arm and the driven side swing arm, and the driving side swing arm and the driven side swing arm are respectively in contact with the limiting part, so that a preset distance is formed between the driving wheel and the driven wheel, and the conveying part can conveniently penetrate through the preset distance.
5. The friction drive conveyor mechanism of claim 4, wherein: the limiting part comprises a limiting seat, a first limiting block and a second limiting block, the first limiting block is detachably connected with one side of the limiting seat, and the second limiting block is detachably connected with the other side of the limiting seat.
6. The friction drive conveyor mechanism of claim 5, wherein: the friction driving mechanism comprises a threaded part, the threaded part is in threaded connection with the driving side swing arm, and the threaded part can be screwed to be adjusted to abut against the driven side swing arm to prop the driving side swing arm and the driven side swing arm outwards.
7. The friction drive conveyor mechanism of claim 4, wherein: a third limiting block is arranged on the driving side swing arm, a fourth limiting block is arranged on the driven side swing arm, and the third limiting block and the fourth limiting block are used for limiting the contact between the worn limiting block and the worn limiting block after the limiting block is worn;
under the state that the driving side swing arm and the driven side swing arm are in normal contact with the limiting part respectively, a gap is formed between the third limiting block and the limiting part, and a gap is formed between the fourth limiting block and the limiting part.
8. The friction drive conveyor mechanism of claim 1, wherein: the friction drive conveying mechanism comprises a motor and a mounting seat, the driving wheel is fixedly connected with an output shaft of the motor, the driving wheel is close to or attached to an output shaft surface of the motor, the mounting seat is mounted on the outer side surface of the driving side swing arm, and the motor is fixedly connected with the side surface of the mounting seat.
9. A conveyor apparatus, characterized by: comprising at least one friction-driven transport mechanism according to any one of claims 1 to 8.
10. The delivery device of claim 9, wherein: the conveying device further comprises a friction rod and a trolley, the friction rod is the conveying piece, the bottom of the trolley is fixedly connected with the friction rod, and a driving wheel and a driven wheel of the friction driving conveying mechanism clamp the friction rod to drive the trolley to move.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202122278565.4U CN216104397U (en) | 2021-09-18 | 2021-09-18 | Friction drive conveying mechanism and conveying device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202122278565.4U CN216104397U (en) | 2021-09-18 | 2021-09-18 | Friction drive conveying mechanism and conveying device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN216104397U true CN216104397U (en) | 2022-03-22 |
Family
ID=80734863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202122278565.4U Active CN216104397U (en) | 2021-09-18 | 2021-09-18 | Friction drive conveying mechanism and conveying device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN216104397U (en) |
-
2021
- 2021-09-18 CN CN202122278565.4U patent/CN216104397U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107838645B (en) | Automatic nut feeding device | |
US11466711B2 (en) | Clamping device for a screw connection | |
US4344729A (en) | Break-away device | |
CN113263304A (en) | Assembling equipment with anti-deviation structure for computer power supply machining | |
CN216104397U (en) | Friction drive conveying mechanism and conveying device | |
US4483219A (en) | Screw driving apparatus | |
JP5717811B2 (en) | Robot system including screw tightening device | |
US4258601A (en) | Bandsaw blade guiding apparatus for bandsaw machines | |
EP0100364A1 (en) | Vacuum holding type automatic screw fastening machine | |
AU746522B2 (en) | Belt tensioning device | |
JP2682995B2 (en) | Handheld machine tools, especially protective hoods for polishing machines | |
CN211193569U (en) | Pressing device for workbench | |
US4334357A (en) | Safety braking apparatus for a portable chain saw | |
CN210863138U (en) | Temperature controller adjustment testing device | |
CN210908883U (en) | Automatic torque adjusting machine for rotating shaft assembly of notebook computer | |
US4773289A (en) | Torque wrench device | |
JPH0847866A (en) | Driving device for fixing means | |
US5156072A (en) | Torque wrench | |
CN205057947U (en) | Fire extinguisher valve screws up torsion adjusting device of aerator | |
CN201140301Y (en) | Elastic pressure roller mechanism in automatic pipe fitting cutting machine | |
CN212734566U (en) | Trackless flame cutting machine with guiding device | |
JP2014004651A (en) | Rotary gripping chuck | |
CN206185772U (en) | Formula of turning round torque wrench | |
CN207997111U (en) | A kind of feed mechanism of automatic screw fixing machine | |
CN213134786U (en) | Material supporting and guiding positioning plate |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |