CN115122276A - Self-tightening type oval manhole door dismounting and mounting tool for vertical high-voltage equipment - Google Patents
Self-tightening type oval manhole door dismounting and mounting tool for vertical high-voltage equipment Download PDFInfo
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- CN115122276A CN115122276A CN202210710420.3A CN202210710420A CN115122276A CN 115122276 A CN115122276 A CN 115122276A CN 202210710420 A CN202210710420 A CN 202210710420A CN 115122276 A CN115122276 A CN 115122276A
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- 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
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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Abstract
The invention relates to the technical field of disassembling and assembling tools, in particular to a disassembling and assembling tool for a self-tightening type oval manhole door of vertical high-voltage equipment, which comprises a vertical cylinder, a lifting rod, a transmission box, a cross beam and a two-way movement assembly, wherein the lifting rod is movably arranged in the vertical cylinder; the mounting plate comprises a first connecting rod and a second connecting rod which are arranged on two sides of the bottom of the mounting plate, a fixing plate which is in threaded connection with the lifting rod is hinged outside the first connecting rod, and a second through hole is formed outside the mounting plate; the invention also provides a disassembling tool for overcoming the defects of the prior art, which can disassemble the manhole door in a limited space after being connected with the manhole cover through the mounting plate, is simple to operate, saves manpower and can effectively improve the disassembling efficiency.
Description
Technical Field
The invention relates to the technical field of disassembling tools, in particular to a disassembling and assembling tool for a self-tightening type oval manhole door of vertical high-voltage equipment.
Background
A manhole of high-voltage equipment generally adopts an oval manhole structure and a self-tightening sealing structure, the gasket is made of stainless steel graphite wound on the gasket, and the manhole cover is arranged on the inner side of the equipment. Due to the high pressure of the equipment and the size limitation of the manhole, the manhole cover is thick and heavy. And because of the restriction of the overhaul space and the weight of the manhole cover, the manhole cover is removed from the inside of the equipment, which extremely costs labor and time and requires a special tool.
Due to the limitation of the maintenance space, according to the record of the prior art, when the manhole cover is disassembled, the manhole cover needs to be moved out of the inside of the equipment, is limited by the weight of the manhole cover, cannot be completed by hand, and needs a special tool or a crane to realize, thereby wasting time and labor.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above problems.
In order to solve the technical problems, the invention provides the following technical scheme: a self-tightening type tool for disassembling and assembling an oval manhole door of vertical high-voltage equipment comprises a vertical cylinder, a lifting rod, a transmission box, a cross beam and a two-way movement assembly, wherein the lifting rod is movably arranged in the vertical cylinder; and the number of the first and second groups,
the mounting plate comprises a first connecting rod and a second connecting rod which are arranged on two sides of the bottom of the mounting plate, a fixing plate which is in threaded connection with the lifting rod is hinged to the outside of the first connecting rod, and a second through hole is formed in the outside of the mounting plate; and the number of the first and second groups,
the supporting assembly comprises a fixed frame arranged outside the vertical cylinder, a first rotating rod arranged in the fixed frame and a universal wheel arranged outside the first rotating rod.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for the vertical high-voltage equipment, the tool comprises: the transmission box is internally provided with a rotating shaft, an output gear is sleeved outside the rotating shaft, a transmission tooth groove is arranged outside the lifting rod, and the transmission tooth groove is connected with the output gear in a meshed mode.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for the vertical high-voltage equipment, the tool comprises: one end of the rotating shaft penetrates through the transmission box and is provided with a rotating handle.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for the vertical high-voltage equipment, the tool comprises: the beam is externally provided with a first through hole, the bidirectional movement component comprises a first screw cylinder, one end of the first screw cylinder is hinged to the first through hole, and the other end of the first screw cylinder is provided with a bidirectional screw.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for the vertical high-voltage equipment, the tool comprises: two sides of the outer wall of the bidirectional screw are respectively provided with a positive thread column and a negative thread column, the negative thread column is connected with the inside of the first screw cylinder, the positive thread column is externally provided with a second screw cylinder, and one end of the second screw cylinder is connected with the second connecting rod.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for the vertical high-voltage equipment, the tool comprises: and a turntable is arranged outside the bidirectional screw.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for the vertical high-voltage equipment, the tool comprises: the fixed frame runs through outward and is equipped with the third through-hole, and the third through-hole inner wall with first bull stick is connected, found a section of thick bamboo and open outward and be equipped with the fourth through-hole, and be equipped with the spout in the fourth through-hole, the spout slides outward and is equipped with the slide, the slide outer through run through the fourth through-hole with the lifter is connected, and the slide outer articulates there is the second bull stick, the one end of second bull stick is passed through third through-hole and first bull stick swing joint.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for the vertical high-voltage equipment, the tool comprises: the outer matrix of upright section of thick bamboo is equipped with the supporting legs, fixed frame is equipped with the conflict frame outward.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for vertical high-voltage equipment, the tool comprises: the bottom of the vertical cylinder is provided with a rotating assembly, and the rotating assembly comprises a top plate and a bottom plate.
As a preferable scheme of the self-tightening type oval manhole door dismounting and mounting tool for the vertical high-voltage equipment, the tool comprises: the bottom of roof is equipped with the fifth through-hole, and the inner wall of fifth through-hole is equipped with L shape spout, the top of bottom plate is equipped with the spliced pole, and the spliced pole is equipped with outward with L shape spout sliding fit's connecting block, be equipped with the elastic component in the fifth through-hole.
The invention has the beneficial effects that: the invention provides a disassembling tool for overcoming the defects of the prior art, which can disassemble a manhole door in a limited space after being connected with the manhole cover through an installation plate, is simple to operate, saves manpower, and can effectively improve the disassembling efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic side sectional view of a transmission case of the present invention.
Fig. 3 is a schematic structural view of the support assembly of the present invention.
Fig. 4 is a schematic view of a structure of separating the top plate and the bottom plate in the present invention.
Fig. 5 is a schematic view of the structure of the L-shaped chute of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures of the present invention are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. 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 and 2, a first embodiment of the present invention provides a self-tightening elliptical manhole door dismounting and mounting tool for a vertical high-voltage device, which can dismount a manhole door in a limited space after being connected with the manhole cover through a mounting plate, is simple in operation, saves labor, and can effectively improve dismounting efficiency.
Specifically, the vertical cylinder 100 comprises a lifting rod 100a movably arranged in the vertical cylinder, a transmission box 101 arranged at the top of the vertical cylinder, a cross beam 102 arranged on the outer wall of the vertical cylinder, and a bidirectional movement assembly 103 connected with the cross beam 102; the mounting plate 200 comprises a first connecting rod 201 and a second connecting rod 202 which are arranged on two sides of the bottom of the mounting plate, a fixing plate 201a which is in threaded connection with the lifting rod 100a is hinged outside the first connecting rod 201, and a second through hole K2 is arranged outside the mounting plate 200; and a support assembly 300 including a fixed frame 301 disposed outside the stand cylinder 100, a first rotating bar 302 disposed inside the fixed frame 301, and a universal wheel 302a disposed outside the first rotating bar 302.
Preferably, a rotating shaft 101a is arranged in the transmission box 101, an output gear 101a-1 is sleeved outside the rotating shaft 101a, a transmission tooth groove 100a-1 is arranged outside the lifting rod 100a, the transmission tooth groove 100a-1 is meshed with the output gear 101a-1, and when the output gear 101a-1 rotates, the lifting rod 100a is meshed with the transmission gear 100a-1 to move vertically along the inner wall of the vertical cylinder 100.
Preferably, one end of the rotating shaft 101a penetrates through the transmission box 101 and is provided with a rotating handle 101a-2, and the rotating handle 101a-2 is arranged to facilitate the control of the output gear 101a-1 by a person skilled in the art.
Preferably, the beam 102 is externally provided with a first through hole K1, the bidirectional movement assembly 103 includes a first screw tube 103a, one end of the first screw tube 103a is hinged to the first through hole K1, and the other end of the first screw tube 103a is provided with a bidirectional screw 104.
Preferably, a positive thread column 104a and a negative thread column 104b are respectively arranged on two sides of the outer wall of the bidirectional screw 104, the negative thread column 104b is connected with the inside of the first screw cylinder 103a, the positive thread column 104a is externally provided with a second screw cylinder 103b, and one end of the second screw cylinder 103b is connected with the second connecting rod 202.
Preferably, the bi-directional screw 104 is externally provided with a dial 104 c.
Wherein, a first internal thread matched with the external wall thread of the reverse thread column 104b is arranged in the first screw cylinder 103a, and a second internal thread matched with the external wall thread of the positive thread column 104a is arranged in the second screw cylinder 103 b.
In summary, when the manhole door is mounted and dismounted, because the manhole door is arranged at the bottom of the vertical high-voltage equipment, the mounting tool can be integrally moved to the position right below the equipment through the universal wheel 302a in the supporting assembly 300;
when the disassembly is carried out, firstly, the rotary handle 101a-2 and the rotary disc 104c are rotated to improve the overall height of the mounting plate 200, the mounting plate 200 and the manhole door are fixed through a second through hole K2 on the mounting plate 200 in a matching manner and a bolt, then the rotary handle 101a-2 and the rotary disc 104c are continuously rotated to enable the mounting plate 200 to jack up the manhole door, the manhole door enters the high-voltage equipment, meanwhile, a mounting channel at the bottom of the high-voltage equipment is separated from the manhole door, and when the rotary disc 104c is rotated, a reverse threaded column 104b and a positive threaded column 104a on the outer wall of the bidirectional screw 104 are respectively in threaded fit with the first screw cylinder 103a and the second screw cylinder 103b, so that the mounting plate 200 rotates by taking the connection point of the fixing plate 201a and the first connecting rod 201 as a rotation point;
next, the entire disassembly and assembly tool is rotated by approximately 90 degrees, and the rotating handle 101a-2 and the rotating disk 104c are rotated in the opposite direction in synchronization to lower the mounting plate 200 to be removed from the high-voltage device.
Finally, when the manhole door is installed, similarly, the rotating handle 101a-2 and the rotating disc 104c need to be rotated synchronously, so that the installation plate 200 is lifted, the manhole door is sent into the high-voltage equipment, the whole installation tool is disassembled by rotating reversely, and the rotating disc 104c is rotated independently, so that the installation plate 200 returns to the horizontal state, namely, the installation of the manhole door and the high-voltage tool is completed.
Wherein, manhole door and high-tension apparatus bottom through-hole accomplish from the fastening through manhole door self weight.
Example 2
Referring to fig. 3, a second embodiment of the present invention is based on the previous embodiment, except that in order to avoid the potential risk that the universal wheels 302a will be out of contact with the ground when the mounting plate 200 is lifted, the universal wheels 302a may be mistakenly slid to cause the overall position of the device to shift, and even cause the manhole door to collide with the inner wall of the high-voltage device, during the lifting of the mounting plate 200.
Concretely, fixed frame 301 runs through outward and is equipped with third through-hole K3, and third through-hole K3 inner wall is connected with first bull stick 302, found section of thick bamboo 100 and open outward and be equipped with fourth through-hole K4, and be equipped with the spout in the fourth through-hole K4, the spout slides outward and is equipped with slide 303, slide 303 is connected with lifter 100a through running through fourth through-hole K4 outward, and slide 303 articulates outward has second bull stick 303a, third through-hole K3 and first bull stick 302 swing joint are passed through to the one end of second bull stick 303a, found section of thick bamboo 100 outer matrix and be equipped with supporting legs 304, fixed frame 301 is equipped with conflict frame 301a outward.
The abutting frame 301a is similar to a numeral "7", and when the first rotating rod 302 is in a vertical state, the abutting frame 301a can block the first rotating rod 302 from continuing to rotate.
In summary, when the lifting rod 100a moves vertically upwards, the lifting rod 100a will drive the sliding plate 303 to slide along the sliding slot in the fourth through hole 304, and the displacement of the sliding plate 303 will make the first rotating rod 302 rotate through the second rotating rod 303a to lift the universal wheel 302a, at this time, the universal wheel 302a will be separated from the contact with the ground, so that the supporting foot 304 will support the whole tool, and in order to avoid this action making the whole tool shake violently, the bottom end surface of the supporting foot 304 will be slightly higher than the bottom end surface of the universal wheel 302 a;
when the lifting rod 100a moves vertically downwards, similarly, the second rotating rod 303a makes the first rotating rod 302 return to the vertical state, and the vertical state is limited by the abutting frame 301a, so as to avoid over-rotation and ensure that the universal wheel 302a can contact with the ground.
Example 3
Referring to fig. 3 to 5, a third embodiment of the present invention is based on the previous embodiment, except that when the tool needs to rotate as a whole, the rotation assembly 305 can rotate the device as a whole to avoid over-rotation.
Specifically, the rotating assembly 305 is arranged at the bottom of the vertical cylinder 100, the rotating assembly 305 comprises a top plate 305a and a bottom plate 305b, a fifth through hole K5 is formed in the bottom of the top plate 305a, an L-shaped sliding groove 305a-1 is formed in the inner wall of the fifth through hole K5, a connecting column 305b-1 is formed in the top of the bottom plate 305b, a connecting block 305b-20 in sliding fit with the L-shaped sliding groove 305a-1 is arranged outside the connecting column 305b-1, and an elastic element 305a-2 is arranged in the fifth through hole K5.
The elastic member 305a-2 is a compression spring, and a limit block is disposed in the L-shaped sliding slot 305a-1 to prevent the bottom plate 305b from being separated from the top plate 305 a.
To sum up, when the universal wheel 302a is separated from the ground, the bottom plate 305b contacts with the ground and is stressed, and the connecting block 305b-2 slides in the L-shaped sliding groove 305a-1, at this time, the elastic member 305a-2 gives a certain buffer to the connecting block, until the connecting block 305b-2 slides to the vertical end of the L-shaped sliding groove 305a-1, the supporting leg 304 contacts with the ground, and then the tool is rotated integrally, so that the connecting block 305b-2 rotates along the L-shaped sliding groove 305a-1, and the L-shaped sliding groove 305a-1 gives a limitation to the rotation angle of the tool integrally through its own structural characteristics, thereby preventing the manhole door from being detached or installed due to over-rotation.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a be used for oval manhole door of vertical high-tension apparatus self-tightening to dismantle mounting tool, its characterized in that: comprises the steps of (a) preparing a substrate,
the vertical cylinder (100) comprises a lifting rod (100a) movably arranged in the vertical cylinder, a transmission box (101) arranged at the top of the vertical cylinder, a cross beam (102) arranged on the outer wall of the vertical cylinder and a bidirectional movement assembly (103) connected with the cross beam (102); and the number of the first and second groups,
the mounting plate (200) comprises a first connecting rod (201) and a second connecting rod (202) which are arranged on two sides of the bottom of the mounting plate, a fixing plate (201a) which is in threaded connection with the lifting rod (100a) is hinged to the outside of the first connecting rod (201), and a second through hole (K2) is formed in the outside of the mounting plate (200); and (c) a second step of,
the supporting assembly (300) comprises a fixed frame (301) arranged outside the vertical cylinder (100), a first rotating rod (302) arranged in the fixed frame (301) and a universal wheel (302a) arranged outside the first rotating rod (302).
2. The self-tightening oval manhole door dismounting and mounting tool for vertical high-voltage equipment as claimed in claim 1, wherein: a rotating shaft (101a) is arranged in the transmission box (101), an output gear (101a-1) is sleeved outside the rotating shaft (101a), a transmission tooth groove (100a-1) is arranged outside the lifting rod (100a), and the transmission tooth groove (100a-1) is meshed with the output gear (101 a-1).
3. The self-tightening oval manhole door dismounting and mounting tool for vertical high-voltage equipment as claimed in claim 2, wherein: one end of the rotating shaft (101a) penetrates through the transmission box (101) and is provided with a rotating handle (101 a-2).
4. The self-tightening oval manhole door dismounting and mounting tool for vertical high-voltage equipment as claimed in claim 1, wherein: the bidirectional moving device is characterized in that a first through hole (K1) is formed in the outer portion of the cross beam (102), the bidirectional moving assembly (103) comprises a first screw cylinder (103a), one end of the first screw cylinder (103a) is hinged to the first through hole (K1), and a bidirectional screw (104) is arranged at the other end of the first screw cylinder (103 a).
5. The self-tightening oval manhole door dismounting and mounting tool for vertical high-voltage equipment as claimed in claim 4, wherein: two sides of the outer wall of the bidirectional screw (104) are respectively provided with a positive thread column (104a) and a negative thread column (104b), the negative thread column (104b) is connected with the first screw cylinder (103a) in, a second screw cylinder (103b) is arranged outside the positive thread column (104a), and one end of the second screw cylinder (103b) is connected with the second connecting rod (202).
6. The self-tightening oval manhole door disassembling and assembling tool for vertical high-voltage equipment as claimed in claim 4 or 5, wherein: and a rotary disc (104c) is arranged outside the bidirectional screw (104).
7. The self-tightening oval manhole door dismounting and mounting tool for vertical high-voltage equipment as claimed in claim 1, wherein: fixed frame (301) is run through outward and is equipped with third through-hole (K3), and third through-hole (K3) inner wall with first bull stick (302) are connected, found a section of thick bamboo (100) external division and be equipped with fourth through-hole (K4), and be equipped with the spout in fourth through-hole (K4), the spout slides outward and is equipped with slide (303), slide (303) outer through run through fourth through-hole (K4) with lifter (100a) are connected, and slide (303) outer articulated have second bull stick (303a), the one end of second bull stick (303a) is passed through third through-hole (K3) and first bull stick (302) swing joint.
8. The self-tightening oval manhole door dismounting and mounting tool for vertical high-voltage equipment as claimed in claim 7, wherein: the outer matrix of upright section of thick bamboo (100) is equipped with supporting legs (304), fixed frame (301) is equipped with conflict frame (301a) outward.
9. The self-tightening oval manhole door disassembling and assembling tool for vertical high-voltage equipment as claimed in claim 7 or 8, wherein: the bottom of upright section of thick bamboo (100) is equipped with rotating assembly (305), and rotating assembly (305) including roof (305a) and bottom plate (305 b).
10. The self-tightening oval manhole door dismounting and mounting tool for vertical high-voltage equipment as claimed in claim 9, wherein: the bottom of roof (305a) is equipped with fifth through-hole (K5), and the inner wall of fifth through-hole (K5) is equipped with L shape spout (305a-1), the top of bottom plate (305b) is equipped with spliced pole (305b-1), and spliced pole (305b-1) is equipped with outward with L shape spout (305a-1) sliding fit's connecting block (305b-20), be equipped with in fifth through-hole (K5) elastic component (305 a-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210710420.3A CN115122276B (en) | 2022-06-22 | 2022-06-22 | Self-tightening elliptical manhole door dismounting and mounting tool for vertical high-voltage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210710420.3A CN115122276B (en) | 2022-06-22 | 2022-06-22 | Self-tightening elliptical manhole door dismounting and mounting tool for vertical high-voltage equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115122276A true CN115122276A (en) | 2022-09-30 |
| CN115122276B CN115122276B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210710420.3A Active CN115122276B (en) | 2022-06-22 | 2022-06-22 | Self-tightening elliptical manhole door dismounting and mounting tool for vertical high-voltage equipment |
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| CN (1) | CN115122276B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1466910A (en) * | 1975-06-02 | 1977-03-09 | Pollock J | Press for removal of piston pins |
| EP0387460A1 (en) * | 1989-02-01 | 1990-09-19 | Antoine Beltra | Apparatus for mounting and dismounting valves and for grinding valve seats |
| US6640407B1 (en) * | 2002-06-18 | 2003-11-04 | Chin-Sung Ou | Bearing detachment device |
| DE102007053937A1 (en) * | 2007-11-13 | 2009-05-14 | Bayerische Motoren Werke Aktiengesellschaft | Assembly device for installing drive chain in body of motor vehicle i.e. car, has compression piece arranged at clamping tool with respect to spindle drive in radially movable manner by suspension arm |
| CN203831348U (en) * | 2013-12-27 | 2014-09-17 | 哈尔滨锅炉厂有限责任公司 | Special tool for disassembly and assembly of high-pressure heater self-tightening sealing oval man hole |
| US9174331B1 (en) * | 2013-07-26 | 2015-11-03 | Roper Pump Company | Bushing removal tool |
-
2022
- 2022-06-22 CN CN202210710420.3A patent/CN115122276B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1466910A (en) * | 1975-06-02 | 1977-03-09 | Pollock J | Press for removal of piston pins |
| EP0387460A1 (en) * | 1989-02-01 | 1990-09-19 | Antoine Beltra | Apparatus for mounting and dismounting valves and for grinding valve seats |
| US6640407B1 (en) * | 2002-06-18 | 2003-11-04 | Chin-Sung Ou | Bearing detachment device |
| DE102007053937A1 (en) * | 2007-11-13 | 2009-05-14 | Bayerische Motoren Werke Aktiengesellschaft | Assembly device for installing drive chain in body of motor vehicle i.e. car, has compression piece arranged at clamping tool with respect to spindle drive in radially movable manner by suspension arm |
| US9174331B1 (en) * | 2013-07-26 | 2015-11-03 | Roper Pump Company | Bushing removal tool |
| CN203831348U (en) * | 2013-12-27 | 2014-09-17 | 哈尔滨锅炉厂有限责任公司 | Special tool for disassembly and assembly of high-pressure heater self-tightening sealing oval man hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115122276B (en) | 2023-07-04 |
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