CN111421499A - Tool for disassembling and assembling engineering machinery accessory - Google Patents
Tool for disassembling and assembling engineering machinery accessory Download PDFInfo
- Publication number
- CN111421499A CN111421499A CN202010283245.5A CN202010283245A CN111421499A CN 111421499 A CN111421499 A CN 111421499A CN 202010283245 A CN202010283245 A CN 202010283245A CN 111421499 A CN111421499 A CN 111421499A
- Authority
- CN
- China
- Prior art keywords
- engineering machinery
- column
- accessory
- guide rail
- implement
- 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.)
- Pending
Links
Images
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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shovels (AREA)
Abstract
The invention provides an engineering machinery accessory dismounting tool, and relates to the technical field of dismounting tools. The tool for disassembling and assembling engineering machinery accessories comprises a bracket and a columnar piece. The support is provided with a through hole, and the cylindrical part can be arranged in the through hole in a penetrating mode and can move in the through hole along the axial direction of the cylindrical part. The support is used for supporting the columnar member, so that one end of the columnar member can abut against one end of the pin shaft between the engineering machinery accessory and the engineering machinery. The invention solves the technical problems that in the process of replacing the engineering machinery accessory in the prior art, when the hand-held copper rod knocks out the pin shaft between the accessory and the engineering machinery, labor is wasted and danger is easily caused to workers.
Description
Technical Field
The invention relates to the technical field of disassembling tools, in particular to an engineering machinery accessory disassembling tool.
Background
The excavator is a common engineering machine, and the figure of the excavator can be seen in various scenes such as infrastructure construction, earthquake relief, flood fighting and emergency rescue and the like. Since the working environment of the excavator is very severe and complicated, the attachments such as a bucket and a breaking hammer of the excavator are easily damaged, and the damaged attachments need to be replaced so as not to affect the normal use of the excavator.
Attachments for construction machines such as excavators are generally connected together by a pin and an ear plate. Because engineering machinery such as an excavator and the like always operates under severe and complex working conditions, a pin shaft between an accessory and the excavator is easy to wear and collide, and the friction force between the pin shaft and an ear plate is large. Therefore, when the excavator accessory is replaced, the copper rod is usually required to be held by hands to align the copper rod with the pin shaft, one or more people hold the copper rod, another person holds the heavy hammer to knock the copper rod, so that the pin shaft between the accessory and the excavator is knocked out, then a new accessory is installed, and the new pin shaft is knocked into the space between the new accessory and the excavator.
However, when the hand-held copper rod knocks out the pin shaft between the accessory of the engineering machine and the engineering machine, the labor is wasted, and danger is easily caused to workers.
Disclosure of Invention
The invention aims to provide an engineering machinery accessory dismounting tool, which is used for relieving the technical problems that when the engineering machinery accessory is replaced in the prior art, a copper bar is usually required to be held by hands to align the copper bar with a pin shaft, one or more persons hold the copper bar by hands, the other person holds a heavy hammer to knock the copper bar so as to knock the pin shaft between the accessory and the engineering machinery out, then a new accessory is installed, and then the new pin shaft is knocked into the position between the new accessory and the engineering machinery, but when the copper bar is held by hands to knock the pin shaft between the accessory and the engineering machinery out, labor is wasted, and danger is easily caused to workers.
The engineering machinery accessory dismounting tool provided by the invention comprises a bracket and a columnar piece;
the bracket is provided with a through hole, and the cylindrical part can penetrate through the through hole and can move in the through hole along the axial direction of the cylindrical part;
the support is used for supporting the columnar member, so that one end of the columnar member can abut against one end of the pin shaft between the engineering machinery accessory and the engineering machinery.
Further, the bracket comprises a first upright post and a second upright post;
the first stand column and the second stand column are arranged in parallel, a positioning part is arranged between the first stand column and the second stand column, and the through hole in the support is arranged on the positioning part.
Further, along the length direction of the first upright post, a first guide rail is arranged on the first upright post; a second guide rail is arranged on the second upright column along the length direction of the second upright column;
the positioning piece is connected between the first guide rail and the second guide rail in a sliding mode.
Further, the engineering machinery accessory dismounting tool also comprises a fixing piece;
the fixing piece can be installed between the positioning piece and the first stand column, or the fixing piece can be installed between the positioning piece and the second stand column, and the fixing piece is used for fixing the positioning piece between the first stand column and the second stand column.
Furthermore, the first guide rail and the second guide rail are both strip-shaped bulges.
Furthermore, the positioning piece comprises a plurality of sliding plates and two sliding blocks;
the sliding plates are all arranged between the two sliding blocks, one sides of the two sliding blocks, which are far away from the sliding plates, are provided with sliding grooves, one sliding block is connected to the first guide rail in a sliding mode, and the other sliding block is connected to the second guide rail in a sliding mode;
the sliding plates are provided with through holes, and the cylindrical pieces sequentially penetrate through the through holes in the sliding plates.
Furthermore, the axial direction of the through hole on the positioning piece is perpendicular to the first upright post and the second upright post.
Further, the top of first guide rail and the top of second guide rail all are provided with anticreep piece, and the setting element can with anticreep piece butt.
Further, the support still includes the base, and first stand and second stand are installed on the base.
Furthermore, the number of the bases is two, the first upright post is arranged on one base, and the second upright post is arranged on the other base;
the base is the slot-like, and the notch orientation of base deviates from one side of setting element.
The tool for disassembling and assembling engineering machinery accessories provided by the invention can produce the following beneficial effects:
the engineering machinery accessory dismounting tool provided by the invention comprises a support and a cylindrical part, wherein the support is provided with a through hole, and the cylindrical part can be arranged in the through hole in a penetrating way and can move along the axial direction of the through hole. The support is used for supporting the columnar member, so that one end of the columnar member can abut against one end of the pin shaft between the engineering machinery accessory and the engineering machinery. When the attachment of the construction machine is detached from the construction machine by using the attachment detachment tool for construction machine according to the present invention, the column-shaped member may be inserted into the through hole of the bracket. The bracket can support the column-shaped part at this time, and one end of the column-shaped part can abut against one end of the pin shaft between the engineering machinery accessory and the engineering machinery. And knocking the cylindrical part after one end of the cylindrical part is abutted against one end of a pin shaft between the engineering machinery accessory and the engineering machinery, so that the pin shaft between the engineering machinery accessory and the engineering machinery is knocked out. Then, a new engineering machinery accessory can be installed, and a new pin shaft is knocked between the new engineering machinery accessory and the engineering machinery.
Compared with the prior art, the engineering mechanical accessory dismounting tool provided by the invention can support the column-shaped member by utilizing the support, so that the column-shaped member can be aligned to the pin shaft between the engineering mechanical accessory and the engineering machinery in the process of dismounting the engineering mechanical accessory, and the column-shaped member is aligned to the pin shaft without holding the column-shaped member by hand, so that a worker can conveniently knock out the pin shaft between the engineering mechanical accessory and the engineering machinery, and a new pin shaft can be conveniently knocked into the space between the new engineering mechanical accessory and the engineering machinery. The engineering mechanical accessory dismounting tool provided by the invention does not need to hold the cylindrical part by hand so that the cylindrical part is aligned with the pin shaft between the engineering mechanical accessory and the engineering machine, so that when the engineering mechanical accessory dismounting tool provided by the invention is used for dismounting the engineering mechanical accessory, the fatigue strength of workers can be reduced, and the danger can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a tool for mounting and dismounting an attachment of a construction machine according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of the tool for mounting and dismounting an attachment for a construction machine according to an embodiment of the present invention.
Icon: 1-a scaffold; 10-perforating; 11-a first upright; 110 — a first guide rail; 12-a second upright; 120-a second guide rail; 2-a cylindrical member; 3-a positioning element; 30-a slide plate; 31-a slide block; 4-base.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1 and 2, the implement for attaching and detaching an attachment to and from a construction machine according to the present embodiment includes a bracket 1 and a columnar member 2. The bracket 1 is provided with a through hole 10, and the cylindrical member 2 can be inserted into the through hole 10 and can move in the through hole 10 along the axial direction thereof. The bracket 1 is used for supporting a column-shaped member 2 so that one end of the column-shaped member 2 can abut against one end of a pin shaft between an engineering machine tool accessory and the engineering machine tool.
Among them, construction machines such as excavators and crushers. The cylindrical member 2 may be a copper rod.
Engineering machinery accessories such as a bucket, a breaking hammer and the like. When the attachment of the construction machine is detached from the construction machine by using the attachment detachment tool for a construction machine according to the present embodiment, the column member 2 can be inserted into the through hole 10 of the bracket 1. The bracket 1 can support the column-shaped element 2 at this time, and one end of the column-shaped element 2 can abut against one end of the pin shaft between the engineering machinery accessory and the engineering machinery. After one end of the cylindrical part 2 is abutted against one end of a pin shaft between the engineering machinery accessory and the engineering machinery, the cylindrical part 2 is knocked, so that the pin shaft between the engineering machinery accessory and the engineering machinery is knocked out. Then, a new engineering machinery accessory can be installed, and a new pin shaft is knocked between the new engineering machinery accessory and the engineering machinery.
Compared with the prior art, the engineering machinery accessory dismounting tool provided by the embodiment can support the column-shaped member 2 by using the bracket 1, so that the column-shaped member 2 can be aligned to the pin shaft between the engineering machinery accessory and the engineering machinery in the process of dismounting the engineering machinery accessory, and the column-shaped member 2 is aligned to the pin shaft without holding the column-shaped member 2 by hand, thereby facilitating a worker to knock out the pin shaft between the engineering machinery accessory and the engineering machinery and a new pin shaft between the new engineering machinery accessory and the engineering machinery.
Since the tool for dismounting an engineering mechanical accessory provided by the embodiment does not need to hold the columnar member by hand so that the columnar member is aligned with the pin shaft between the engineering mechanical accessory and the engineering machine, when the tool for dismounting an engineering mechanical accessory provided by the embodiment is used for dismounting an engineering mechanical accessory, the fatigue strength of workers can be reduced, and the danger can be reduced.
As shown in fig. 1 and 2, the bracket 1 includes a first upright column 11 and a second upright column 12, the first upright column 11 and the second upright column 12 are arranged in parallel, a positioning member 3 is arranged between the first upright column 11 and the second upright column 12, and a through hole 10 on the bracket 1 is arranged on the positioning member 3.
The first upright 11 and the second upright 12 are used to support the positioning element 3, and the positioning element 3 is used to support the cylindrical element 2.
The positioning element 3 may be a block, and for the stable support of the supporting pillar element 2, the through hole 10 on the positioning element 3 may be a channel.
Further, in order to facilitate knocking of the pin between the working machine tool and the working machine, the size of the through hole 10 of the positioning member 3 may be larger than that of the cylindrical member 2.
As shown in fig. 1, along the length direction of the first upright 11, a first guide rail 110 is arranged on the first upright 11; along the length direction of the second upright 12, a second guide rail 120 is provided on the second upright 12. The positioning member 3 is slidably coupled between the first rail 110 and the second rail 120.
The positioning element 3 is slidably connected between the first guide rail 110 and the second guide rail 120, so that the height of the positioning element 3 is convenient to adjust, and further the height of the cylindrical element 2 in the through hole 10 in the positioning element 3 is convenient to adjust, so that the cylindrical element 2 can be suitable for pin shafts on engineering machinery accessories at different heights, and the use flexibility of the engineering machinery accessory dismounting tool provided by the embodiment can be improved.
It can be seen that no matter the installation position of the pin shaft between the engineering machinery accessory and the engineering machinery is higher or lower, the cylindrical part 2 in the engineering machinery accessory dismounting tool provided by the embodiment can be suitable for use, and workers can conveniently apply force to knock the cylindrical part 2.
The tool for mounting and dismounting an attachment for construction machinery provided by the embodiment further comprises a fixing piece. The fixing member can be mounted between the positioning member 3 and the first upright 11, or the fixing member can be mounted between the positioning member 3 and the second upright 12. Alternatively, fixing members are installed between the positioning member 3 and the first column 11 and between the positioning member 3 and the second column 12. The fixing member is used to fix the positioning member 3 between the first upright 11 and the second upright 12.
The fixing piece is used for limiting the position of the positioning piece 3, so that the stability of the cylindrical piece 2 can be improved, and the cylindrical piece 2 and a pin shaft of an engineering machinery accessory on one side of the cylindrical piece 2 can be knocked conveniently.
In practical applications, the fixing member may be a screw.
In this embodiment, since the positioning member 3 is detachably mounted between the first upright post 11 and the second upright post 12 through the fixing member, the first upright post 11 and the second upright post 12 are independent from each other, and the cylindrical member 2 is inserted into the through hole 10 of the positioning member 3, the parts of the tool for mounting and dismounting an accessory of a construction machine provided in this embodiment can be separated from each other, and when the parts are assembled together, the tool for mounting and dismounting an accessory of a construction machine can be used.
Because each part in the engineering machinery accessory dismounting tool provided by the embodiment can be separated, the engineering machinery accessory dismounting tool provided by the embodiment can save the transportation space and is convenient to transport and carry.
As shown in fig. 1, the first guide rail 110 and the second guide rail 120 are each a bar-shaped protrusion.
Specifically, the first guide rail 110 may be a rectangular parallelepiped strip-shaped protrusion provided on the first upright 11, and the second guide rail 120 may be a rectangular parallelepiped strip-shaped protrusion provided on the second upright 12.
As shown in fig. 2, the positioning member 3 includes a plurality of sliding plates 30 and two sliding blocks 31. The sliding plates 30 are all installed between the two sliding blocks 31, one sides of the two sliding blocks 31, which face away from the sliding plates 30, are all provided with sliding grooves, one of the sliding blocks 31 is slidably connected to the first guide rail 110, and the other sliding block 31 is slidably connected to the second guide rail 120. The plurality of sliding plates 30 are each provided with a through hole 10, and the cylindrical member 2 passes through the through holes 10 of the plurality of sliding plates 30 in sequence.
Wherein a plurality of sliding plates 30 can be arranged in parallel, and a plurality of sliding plates 30 are used for improving the installation stability of the column member 2.
After the position of the slide 30 is adjusted between the first guide rail 110 and the second guide rail 120, one of the sliders 31 may be fixed to the first guide rail 110 and the other slider 31 may be fixed to the second guide rail 120 by using a fixing member.
In the present embodiment, the through hole 10 of the positioning member 3 has an axial direction perpendicular to the first column 11 and the second column 12.
The through hole 10 in the positioning member 3 is circular, and when the axial direction of the through hole 10 in the positioning member 3 is perpendicular to the first upright post 11 and the second upright post 12, the cylindrical member 2 penetrating through the through hole 10 can be perpendicular to the first upright post 11 and the second upright post 12, so that the cylindrical member 2 can be kept horizontal, and the pin shaft of the engineering mechanical accessory can be knocked out easily by using the cylindrical member 2 or can be knocked into the space between the engineering mechanical accessory and the engineering machine.
Further, the top end of the first guide rail 110 and the top end of the second guide rail 120 may be provided with an anti-falling part, and the positioning part 3 may abut against the anti-falling part.
The retaining member may have a cover shape, and the retaining member may be covered on the top end of the first rail 110 and the top end of the second rail 120, thereby preventing the positioning member 3 from slipping out from the top end of the first rail 110 and the top end of the second rail 120.
As shown in fig. 1, the stand 1 further includes a base 4, and a first upright 11 and a second upright 12 are mounted on the base 4.
The base 4 is used for supporting the first upright 11 and the second upright 12, and can improve the stability of the first upright 11 and the second upright 12.
As shown in fig. 1, the number of the base 4 is two, the first upright post 11 is mounted on one of the base 4, and the second upright post 12 is mounted on the other base 4. The base 4 is trough-shaped, and the notch of the base 4 faces the side facing away from the positioning piece 3.
In addition, four contact points are arranged between the engineering mechanical accessory dismounting tool and the ground, and the requirement of the engineering mechanical accessory dismounting tool on the flatness of the ground can be reduced, so that the engineering mechanical accessory dismounting tool can be suitable for the ground with various complex environments.
In summary, the tool for dismounting an attachment of a construction machine provided by the embodiment has the following advantages:
1. when the engineering machinery accessory is disassembled and assembled, the bracket is utilized without a worker to hold the columnar piece, so that the problem that the pin shaft is not conveniently aligned by the held columnar piece and is not conveniently knocked by the worker is solved, the labor is saved, and the safety is improved.
2. The engineering mechanical accessory dismounting tool provided by the embodiment can adjust the height of the column-shaped part by utilizing the positioning part which is connected between the first upright post and the second upright post in a sliding manner, so that the engineering mechanical accessory dismounting tool can be suitable for engineering mechanical accessories positioned at different heights.
3. The positioning piece and the cylindrical piece can be detached, so that the transportation space is saved, and the carrying is convenient.
4. Four contact points are arranged between the base and the ground, so that the stability of the whole tool can be improved, the requirement on the flatness of the ground can be reduced, and the engineering machinery accessory dismounting tool can be suitable for the ground with a complex environment.
5. The engineering machinery accessory dismounting tool is simple in structure, low in maintenance cost and suitable for construction engineering in severe environment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The engineering machinery accessory dismounting tool is characterized by comprising a support (1) and a cylindrical part (2);
a through hole (10) is arranged on the bracket (1), and the cylindrical part (2) can be arranged in the through hole (10) in a penetrating way and can move in the through hole (10) along the axial direction thereof;
the support (1) is used for supporting the cylindrical part (2) so that one end of the cylindrical part (2) can abut against one end of a pin shaft between an engineering machinery accessory and engineering machinery.
2. The implement for the disassembly and assembly of work machinery accessory according to claim 1, characterized in that the bracket (1) comprises a first upright (11) and a second upright (12);
the first stand column (11) and the second stand column (12) are arranged in parallel, a positioning piece (3) is arranged between the first stand column (11) and the second stand column (12), and a through hole (10) in the support (1) is formed in the positioning piece (3).
3. The implement for attaching and detaching a working machine attachment according to claim 2, wherein a first guide rail (110) is provided on the first column (11) in a longitudinal direction of the first column (11); a second guide rail (120) is arranged on the second upright post (12) along the length direction of the second upright post (12);
the positioning piece (3) is connected between the first guide rail (110) and the second guide rail (120) in a sliding mode.
4. The implement according to claim 3, characterized in that the implement further comprises a fixing member;
the fixing piece can be installed between the positioning piece (3) and the first upright post (11), or the fixing piece can be installed between the positioning piece (3) and the second upright post (12), and the fixing piece is used for fixing the positioning piece (3) between the first upright post (11) and the second upright post (12).
5. The implement according to claim 3, wherein the first rail (110) and the second rail (120) are both strip-shaped projections.
6. The implement for the disassembly and assembly of working machine accessories according to claim 5, characterized in that the positioning element (3) comprises a plurality of sliding plates (30) and two sliding blocks (31);
the sliding plates (30) are arranged between the two sliding blocks (31), one sides of the two sliding blocks (31) departing from the sliding plates (30) are provided with sliding grooves, one sliding block (31) is connected to the first guide rail (110) in a sliding mode, and the other sliding block (31) is connected to the second guide rail (120) in a sliding mode;
the sliding plates (30) are provided with the through holes (10), and the cylindrical part (2) sequentially penetrates through the through holes (10) in the sliding plates (30).
7. The implement according to claim 2, wherein the through hole (10) of the positioning member (3) has an axial direction perpendicular to the first column (11) and the second column (12).
8. The implement for disassembling and assembling work machine attachment according to claim 3, wherein a separation preventing member is provided at each of a top end of the first guide rail (110) and a top end of the second guide rail (120), and the positioning member (3) can abut against the separation preventing member.
9. The implement for attaching and detaching a work machine attachment according to any one of claims 2 to 8, wherein the bracket (1) further includes a base (4), and the first pillar (11) and the second pillar (12) are mounted on the base (4).
10. The implement according to claim 9, wherein the number of the bases (4) is two, the first column (11) is attached to one of the bases (4), and the second column (12) is attached to the other base (4);
the base (4) is groove-shaped, and the notch of the base (4) faces away from one side of the positioning piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283245.5A CN111421499A (en) | 2020-04-10 | 2020-04-10 | Tool for disassembling and assembling engineering machinery accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283245.5A CN111421499A (en) | 2020-04-10 | 2020-04-10 | Tool for disassembling and assembling engineering machinery accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111421499A true CN111421499A (en) | 2020-07-17 |
Family
ID=71553937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010283245.5A Pending CN111421499A (en) | 2020-04-10 | 2020-04-10 | Tool for disassembling and assembling engineering machinery accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111421499A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073051A (en) * | 1976-06-22 | 1978-02-14 | Borroughs Tool & Equipment Corporation | Piston pin installing and removing method |
| CN102490698A (en) * | 2011-12-20 | 2012-06-13 | 三一重工股份有限公司 | Support leg for engineered machine and engineered machine |
| CN203993050U (en) * | 2014-08-06 | 2014-12-10 | 中联重科股份有限公司 | A dismouting device for round pin axle |
| CN107309836A (en) * | 2017-08-22 | 2017-11-03 | 施双收 | Multifunctional pulling rider |
| CN208744699U (en) * | 2018-05-29 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of efficient tube drawing tool |
-
2020
- 2020-04-10 CN CN202010283245.5A patent/CN111421499A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073051A (en) * | 1976-06-22 | 1978-02-14 | Borroughs Tool & Equipment Corporation | Piston pin installing and removing method |
| CN102490698A (en) * | 2011-12-20 | 2012-06-13 | 三一重工股份有限公司 | Support leg for engineered machine and engineered machine |
| CN203993050U (en) * | 2014-08-06 | 2014-12-10 | 中联重科股份有限公司 | A dismouting device for round pin axle |
| CN107309836A (en) * | 2017-08-22 | 2017-11-03 | 施双收 | Multifunctional pulling rider |
| CN208744699U (en) * | 2018-05-29 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of efficient tube drawing tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111421499A (en) | Tool for disassembling and assembling engineering machinery accessory | |
| CN109339425B (en) | Supporting platform for building construction and installation method thereof | |
| CN211143308U (en) | Steel construction braced system of high stability | |
| CN219009699U (en) | Rack and turbine generator sealing part hoisting accessory | |
| CN213226007U (en) | Bearing dismounting device | |
| CN216277936U (en) | Coal mine stope face supporting construction | |
| CN212706552U (en) | Shaft sleeve dismounting device of gas turbine | |
| CN219996402U (en) | Pressure sensor with overpressure alarm unit | |
| CN219261977U (en) | Protection component for municipal works construction | |
| CN218667945U (en) | Steel-concrete structure connecting component | |
| CN216239656U (en) | Working face adjustable building engineering aerial working platform | |
| CN216616791U (en) | Cantilever frame triangular support device | |
| CN217811809U (en) | Admire wall convenient to hang fixedly | |
| CN214350167U (en) | Steel plate cutting machine simple to operate | |
| CN212078242U (en) | Supporting device for stretching steel cable | |
| CN218295028U (en) | Online video monitoring device of transmission network line | |
| CN220081037U (en) | Building construction safety guard rail | |
| CN215629333U (en) | Traffic engineering bridge steel support | |
| CN220730812U (en) | External protection device for database server | |
| CN211812880U (en) | Elevartor shaft overhauls platform with stretching out installing support | |
| CN221277176U (en) | Safety construction frame | |
| CN216341383U (en) | Detachable guardrail for construction | |
| CN214942304U (en) | Aluminum alloy scaffold connecting fastener | |
| CN219458037U (en) | Wedge-shaped parallel groove clamp convenient to disassemble and assemble | |
| CN219387517U (en) | Protective support frame in earth and stone excavation construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200717 |