CN212071771U - Roller chain quick assembly disassembly maintenance device - Google Patents
Roller chain quick assembly disassembly maintenance device Download PDFInfo
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- CN212071771U CN212071771U CN202020197835.1U CN202020197835U CN212071771U CN 212071771 U CN212071771 U CN 212071771U CN 202020197835 U CN202020197835 U CN 202020197835U CN 212071771 U CN212071771 U CN 212071771U
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Abstract
The utility model relates to a repair tools's technical field, more specifically relates to a roller chain quick assembly disassembly maintenance device, include the base and install in the dismantlement subassembly and the installation component of base, the dismantlement subassembly is including the thimble of the ejecting round pin axle in the link hole of can alternate, thimble and base swing joint, the installation component is including first clamping jaw and the second clamping jaw that can act on the chain link, first clamping jaw, second clamping jaw set up just relatively first clamping jaw, second clamping jaw all with base sliding connection. The utility model discloses possess the quick dismantlement and the installation function of chain simultaneously: when the roller chain is disassembled, the pin shaft is ejected out by the ejector pin; when the roller chain is installed, the first clamping jaw and the second clamping jaw tighten the chain links to proper positions and then connect the chain link sheets between the two chain links; the operation is simple and convenient, the operation can be realized by one person, the manpower and material resources can be saved, and the working efficiency is effectively improved.
Description
Technical Field
The utility model relates to a repair tools's technical field, more specifically relates to a roller chain quick assembly disassembly maintenance device.
Background
Chain transmission is an important form of mechanical transmission, but the chain inevitably generates abrasion after being used for a long time, so that the chain is stretched and loosened, the transmission precision of the chain is reduced, and the use requirement is difficult to meet. In this case, the roller chain needs to be disassembled to be cut off or the chain links need to be replaced for repair, that is, the chain pins need to be removed from the chain link plates. Because the two ends of the pin shaft are riveted, the pin shaft is very tightly matched with the chain link sheet, and the pin shaft is difficult to be quickly disassembled. At present, the common practice is to use a hand hammer and a punch to punch down the steel plate by using bench vice or sizing block, which is inconvenient to operate, low in efficiency and inconvenient to operate on site.
In order to solve the problem of difficulty in disassembling the chain pin shaft, a special tool for disassembling the chain appears on the market, and the disassembling efficiency of the chain is greatly improved. However, the existing special tool for detaching the chain has various problems: the chain disassembling tool only aims at the chains with single size specification, can not meet the disassembling requirements of the chains with various sizes at the same time, if the chains with different sizes are maintained, a plurality of chain disassembling devices are required to be arranged to replace the chains with different sizes, and the cost is higher; the chain extracting tool only possesses the chain and dismantles the function, does not possess the chain installation function, because roller chain is through maintenance after more new chain link, the length of chain has taken place the minor shortening, need loosen the overspeed device tensioner of chain or adjust the position of motor and adjust the installation distance in two holes of chain usually, need consume great maintenance man-hour, the installation effectiveness is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a roller chain quick assembly disassembly maintenance device, possess the quick dismantlement and the quick installation function of chain simultaneously, it is easy and simple to handle, can effectively improve work efficiency.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the roller chain comprises a plurality of groups of chain links, pin shafts and chain link sheets, wherein the two ends of each chain link are provided with chain link holes, the pin shafts are connected in the chain link holes in a penetrating manner, and the chain link sheets are connected between two adjacent groups of chain links through the pin shafts; quick assembly disassembly maintenance device includes the base and installs in the dismantlement subassembly and the installation component of base, the dismantlement subassembly is including can alternate in the thimble of ejecting round pin axle in the link hole, thimble and base swing joint, the installation component is including first clamping jaw and the second clamping jaw that can act on the chain link, first clamping jaw, second clamping jaw set up just relatively first clamping jaw, second clamping jaw all with base sliding connection.
The utility model discloses a roller chain quick assembly disassembly maintenance device: when the roller chain is disassembled, the pin shaft is ejected out by the ejector pin; when the roller chain is installed, the first clamping jaw and the second clamping jaw which are oppositely arranged are respectively sleeved into the two chain links to be connected, the relative distance between the first clamping jaw and the second clamping jaw is adjusted to reduce the distance between the two chain links, and the chain link piece is connected between the two chain links after the chain links are tightened to the proper position, so that the installation operation of the chain is completed; the utility model discloses possess the quick dismantlement and the installation function of chain simultaneously, it is easy and simple to handle, can use manpower sparingly material resources, effectively improve work efficiency.
Furthermore, the disassembling component further comprises a positioning component movably connected with the base, a first positioning hole is formed in the bottom of the base, the pin shaft can be positioned between the positioning component and the first positioning hole, and the ejector pin is movably connected with the positioning component. When the roller chain is disassembled, the positioning assembly and the first positioning hole are firstly adopted to position the pin shaft, so that the position of the thimble at the chain link in the process of pressing the pin shaft is not changed, and the chain link is prevented from moving to influence the centering property of the thimble in the disassembling process.
Furthermore, the positioning assembly comprises a first screw rod with a hollow inner part and a positioning gland connected to the end part of the first screw rod, the first screw rod is in threaded connection with the base, and a second positioning hole is formed in the bottom of the positioning gland; the thimble is located inside the first screw rod and first screw rod bottom, location gland all are equipped with the through-hole that can hold the thimble to pass. The through hole of the positioning gland plays a limiting and guiding role on the ejector pin, the center line of the ejector pin is enabled to coincide with the pin shaft when the pin shaft is pressed by the ejector pin, so that the ejector pin is effectively prevented from bending deformation due to deviation, the diameter size of the second positioning hole is slightly larger than the size of the pin shaft, when the chain is disassembled, the second positioning hole is sleeved on the pin shaft, the lower end face of the positioning gland is pressed on the chain link sheet, the chain is positioned, and the position of the chain link is enabled not to change in the process of pressing the pin shaft by the ejector pin.
Furthermore, one end of the thimble is connected with a second screw rod, and the second screw rod is connected to the inner side of the first screw rod through threads. The second screw rod is rotated to drive the thimble to descend so as to act on the pin shaft, and the operation is simple and convenient.
Further, a first step is arranged on the inner side of the first screw, a second step is arranged on the ejector pin, and a spring is connected between the first step and the second step. The spring plays a role in supporting and resetting the thimble, and can prevent the thimble from falling downwards in a non-working state.
Further, the base comprises a connecting portion, a first protruding portion and a second protruding portion, the first protruding portion and the second protruding portion are connected to the upper end and the lower end of the connecting portion respectively, a groove is formed between the first protruding portion and the second protruding portion, the first screw rod is connected with the first protruding portion, and the first positioning hole is formed in the second protruding portion.
Further, first clamping jaw is connected with first connecting block, the second clamping jaw is connected with the second connecting block, the base has worn to have connect the third screw rod, the third screw rod is equipped with first screw thread and second screw thread that the spiral direction is opposite, first connecting block and first threaded connection, second connecting block and second threaded connection. During the operation, advance first clamping jaw, second clamping jaw cover earlier and wait that the chain link both sides of connecting, rotatory third screw rod makes first clamping jaw, second clamping jaw remove in opposite directions and tighten up the chain to reduce the center distance in two chain link holes, tighten up the operation that alright alternate after suitable position at the chain link hole and connect the chain link, can accomplish the installation operation of chain under the condition of not loosening installation component.
Further, the base is provided with a sliding groove, and the first connecting block and the second connecting block are in sliding connection with the sliding groove. The sliding groove is arranged to ensure the motion stability of the first connecting block and the second connecting block.
Furthermore, a third positioning hole is formed in the base, one end of the third screw rod is arranged in the third positioning hole, and a bearing end cover is arranged at the joint of the other end of the third screw rod and the base. When the third screw rod is rotated, the third screw rod rotates in place, and the device is compact in structure.
Further, a handle is connected to the base. The handle is arranged, so that the disassembly operation and the installation operation are convenient.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a roller chain quick assembly disassembly maintenance device possesses the quick dismantlement and the quick installation function of chain simultaneously, adopts the dismantlement of the ejecting round pin axle of thimble can accomplish the chain, adopts first clamping jaw and second clamping jaw to tighten up the installation of chain link in order to accomplish the chain, and is easy and simple to handle, has saved manpower and materials greatly, and work efficiency obtains great promotion.
Drawings
FIG. 1 is a schematic view of a roller chain quick assembly disassembly maintenance device according to an embodiment;
FIG. 2 is a perspective view of a roller chain quick assembly disassembly service apparatus in one embodiment;
FIG. 3 is a top view of an embodiment of a roller chain quick assembly disassembly service apparatus;
FIG. 4 is a schematic structural view of a roller chain quick-release maintenance device according to another embodiment;
FIG. 5 is a perspective view of another embodiment of a roller chain quick assembly disassembly service apparatus;
FIG. 6 is a top view of another embodiment of a roller chain quick-disconnect maintenance device; in the drawings: 1-a base; 11-a first positioning hole; 12-a connecting part; 13-a first convex portion; 14-a second projection; 15-a chute; 16-a bearing end cap; 2-disassembling the assembly; 21-a thimble; 22-a second screw; 23-a second step; 24-a spring; 3-mounting the component; 31-a first jaw; 32-a second jaw; 33-a first connection block; 34-a second connecting block; 35-a third screw; 4-a positioning assembly; 41-a first screw; 42-positioning the gland; 43-first step; 5-a handle.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Examples
As shown in fig. 1 to 3, an embodiment of a device for quickly disassembling, assembling and maintaining a roller chain according to the present invention includes a plurality of chain links, pin shafts, and chain link pieces, wherein the two ends of each chain link are provided with a chain link hole, the pin shafts penetrate through the chain link holes, and the chain link pieces are connected between two adjacent groups of chain links through the pin shafts; quick assembly disassembly maintenance device includes base 1 and installs in 1 dismantlement subassembly 2 and the installation component 3 of base: the disassembling component 2 comprises a thimble 21 which can be inserted in the chain link hole to eject the pin shaft, and the thimble 21 is movably connected with the base 1; the mounting assembly 3 comprises a first clamping jaw 31 and a second clamping jaw 32 which can act on the chain links, wherein the first clamping jaw 31 and the second clamping jaw 32 are oppositely arranged, and the first clamping jaw 31 and the second clamping jaw 32 are both connected with the base 1 in a sliding mode. The thimble 21 can be made of special steel with the hardness of 62 degrees, has better wear resistance and longer service life, and is not easy to bend and deform.
The roller chain quick assembly disassembly maintenance device: when the roller chain is disassembled, the pin shaft is ejected out by the ejector pin 21; when the roller chain is installed, the first clamping jaw 31 and the second clamping jaw 32 which are oppositely arranged are respectively sleeved into two chain links to be connected, the relative distance between the first clamping jaw 31 and the second clamping jaw 32 is adjusted to reduce the distance between the two chain links, and a chain link sheet is connected between the two chain links after the chain links are tightened to a proper position, so that the installation operation of the chain is completed; and the mounting operation and the dismounting operation of the chain are carried out by only one person, so that the cooperation of a plurality of persons is omitted, and the labor cost is well reduced.
In one embodiment, the disassembling component 2 further comprises a positioning component 4 movably connected with the base 1, the bottom of the base 1 is provided with a first positioning hole 11, a pin shaft can be positioned between the positioning component 4 and the first positioning hole 11, and the thimble 21 is movably connected with the positioning component 4; when the roller chain is disassembled, the positioning assembly 4 and the first positioning hole 11 are firstly adopted to position the pin shaft, so that the position of the chain link of the ejector pin 21 in the pin shaft pressing process is not changed, and the chain link is prevented from moving to influence the centering property of the ejector pin 21 in the disassembling process.
Specifically, the positioning assembly 4 includes a first screw rod 41 with a hollow interior and a positioning gland 42 connected to an end of the first screw rod 41, the first screw rod 41 is in threaded connection with the base 1, and a second positioning hole is formed at the bottom of the positioning gland 42; the thimble 21 is disposed inside the first screw 41, and the bottom of the first screw 41 and the positioning gland 42 are both provided with through holes for the thimble 21 to pass through. Wherein, the positioning gland 42 adopts a stepped hole design: the upper part of the stepped hole is a through hole, the diameter of the through hole is equal to that of the thimble 21, the through hole plays a role in limiting and guiding the thimble 21, the center line of the thimble 21 is overlapped with the pin shaft when the pin shaft is pressed by the thimble 21, so that the thimble 21 is effectively prevented from being deviated to generate bending deformation, and the service life of the thimble 21 can be effectively prolonged; the lower part of the stepped hole is a second positioning hole, the diameter size of the second positioning hole is slightly larger than the size of the pin shaft, when the chain is disassembled, the bottom of the pin shaft to be disassembled is placed in the first positioning hole 11 at the bottom of the base 1 to be pre-positioned, the first screw rod 41 drives the positioning gland 42 to move downwards to the second positioning hole to be sleeved on the pin shaft, the lower end face of the positioning gland 42 is pressed on the chain link to play a positioning role on the chain link, the position of the chain link is not changed in the process of pressing the pin shaft by the ejector pin 21, the pin shaft can be ejected by pressing the ejector pin 21 downwards, and the dropped pin shaft drops from the first positioning hole 11. To facilitate the rotation operation of the first screw 41, a technician can attach nuts of different sizes to the end of the first screw 41 according to the application and usage habits, as shown in fig. 1 and 2.
It should be noted that, in the present embodiment, the ejector pins 21 with different dimensions and specifications and the matching positioning gland 42 can be designed to be suitable for disassembling chains with different models, such as 3 minutes, 4 minutes, 5 minutes, 6 minutes, and the like. When the chain type switching device is used, the ejector pins 21 and the positioning gland 42 with corresponding sizes are selected according to the specifications of the disassembled chain, the selected ejector pins 21 are placed in the first screw rod 41, and the positioning gland 42 is installed on the periphery of the first screw rod 41, so that the detachable chain type of the disassembling component 2 can be switched.
In one embodiment, one end of the thimble 21 is connected with a second screw 22, and the second screw 22 is connected to the inner side of the first screw 41 through threads. Wherein, the one end of thimble 21 and second screw rod 22 can adopt the mode that the contact set up, also can adopt the link mode that can dismantle fast such as screw thread, joint. With such an arrangement, a stable structure of the quick-mounting, dismounting and maintaining device can be provided, and the replacement of the thimble 21 is not affected. During implementation, the second screw 22 is rotated to downwards extrude the ejector pin 21, the acting force exerted on the pin shaft by the ejector pin 21 is stable, the mode of spirally pressing and ejecting the pin shaft replaces the traditional mode of using a hand hammer to impact to disassemble the chain, and the disassembling efficiency of the chain is greatly improved. To facilitate the rotation of the second screw 22, a technician may attach nuts of different sizes at the end of the second screw 22, as shown in fig. 1 and 2, depending on the application and usage habits.
In one embodiment, the first screw 41 is provided with a first step 43 inside, the thimble 21 is provided with a second step 23, and the spring 24 is connected between the first step 43 and the second step 23. The spring 24 is clamped between the first screw 41 and the thimble 21 and is sleeved on the periphery of the thimble 21, and the spring 24 plays a role in supporting and resetting the thimble 21, so as to prevent the thimble 21 from falling downward in a non-working state.
In one embodiment, the base 1 includes a connecting portion 12, a first protrusion 13 and a second protrusion 14, the first protrusion 13 and the second protrusion 14 are respectively connected to the upper end and the lower end of the connecting portion 12, a groove is formed between the first protrusion 13 and the second protrusion 14, the first screw 41 is connected to the first protrusion 13, and the first positioning hole 11 is disposed in the second protrusion 14. This arrangement is preferable for achieving a compact structure, an aesthetic appearance, and ease of operation, and is not intended to be a limiting provision.
In one embodiment, the first clamping jaw 31 is connected with a first connecting block 33, the second clamping jaw 32 is connected with a second connecting block 34, the base 1 is connected with a third screw rod 35 in a penetrating mode, the third screw rod 35 is provided with a first thread and a second thread which are opposite in spiral direction, the first connecting block 33 is connected with the first thread, and the second connecting block 34 is connected with the second thread. During operation, first clamping jaw 31, second clamping jaw 32 cover earlier and advance the chain link both sides of treating the connection, screw up third screw 35, make first clamping jaw 31, second clamping jaw 32 move in opposite directions and tighten up the chain to reduce the center distance in two chain link holes, tighten up the operation that alright alternate after suitable position in the chain link hole and connect the chain link, can accomplish the installation operation of chain under the condition of not loosening installation component 3. The first clamping jaw 31 and the second clamping jaw 32 have the same structure, and may be hook-shaped structures, and the two hook-shaped structures are arranged oppositely to tighten two links to be installed, as shown in fig. 4 and 5; the first clamping jaw 31 and the second clamping jaw 32 may also adopt a clamping plate type structure, and concave positions are arranged at corresponding positions of the two clamping plates for clamping the chain link, as shown in fig. 1 and 2; of course, the shapes of the first jaw 31 and the second jaw 32 are not limited to the two forms, and other jaw structures capable of pulling the chain links to make the chain links approach each other are also suitable for the present invention. The present embodiment adopts a screw tightening manner to assist the chain installation, which is preferable for stable and reliable operation and obtaining a large clamping force to effectively clamp the chain, and is not a restrictive provision.
In one embodiment, the base 1 is provided with a sliding slot 15, and the first connecting block 33 and the second connecting block 34 are slidably connected with the sliding slot 15. It should be noted that the chute 15 is preferably provided to ensure the smoothness of the movement of the first connecting block 33 and the second connecting block 34, and is not a restrictive provision.
In one embodiment, a third positioning hole is formed in the base 1, one end of the third screw 35 is arranged in the third positioning hole, and a bearing end cover 16 is arranged at the joint of the other end of the third screw 35 and the base 1; in this embodiment, the diameters of the two ends of the third screw 35 are smaller than the diameter of the middle portion of the third screw 35, so that the two ends of the third screw 35 are respectively connected to the third positioning hole and the bearing end cover 16. Thus, when the third screw 35 is rotated, the third screw 35 is rotated in place, and the first jaw 31 and the second jaw 32 can move toward or away from each other. To facilitate the rotation operation of the third screw 35, a technician can attach nuts of different sizes to the end of the third screw 35 according to the application and usage habits, as shown in fig. 1 and 2.
In one embodiment, a handle 5 is attached to the base 1, as shown in fig. 3 and 6. The provision of the handle 5 is preferable for increasing the convenience of the detaching operation and the attaching operation, and is not intended as a restrictive provision. It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A roller chain quick disassembly and assembly maintenance device comprises a plurality of groups of chain links, pin shafts and chain link sheets, wherein chain link holes are formed in two ends of each chain link, the pin shafts are connected in the chain link holes in a penetrating mode, and the chain link sheets are connected between two adjacent groups of chain links through the pin shafts; the quick dismounting and maintaining device is characterized by comprising a base (1), a dismounting component (2) and an installation component (3), wherein the dismounting component (2) and the installation component (3) are installed on the base (1): the disassembling component (2) comprises an ejector pin (21) capable of being inserted into the link hole to eject the pin shaft, and the ejector pin (21) is movably connected with the base (1); installation component (3) are including first clamping jaw (31) and second clamping jaw (32) that can act on the chain link, first clamping jaw (31), second clamping jaw (32) set up just relatively first clamping jaw (31), second clamping jaw (32) all with base (1) sliding connection.
2. The roller chain quick assembly disassembly maintenance device of claim 1, wherein the disassembling component (2) further comprises a positioning component (4) movably connected with the base (1), the bottom of the base (1) is provided with a first positioning hole (11), the pin shaft is positioned between the positioning component (4) and the first positioning hole (11), and the ejector pin (21) is movably connected with the positioning component (4).
3. The roller chain quick assembly disassembly maintenance device of claim 2, characterized in that the positioning assembly (4) comprises a first screw rod (41) with a hollow interior and a positioning gland (42) connected to the end of the first screw rod (41), the first screw rod (41) is in threaded connection with the base (1), and a second positioning hole is formed at the bottom of the positioning gland (42); the ejector pin (21) is arranged in the first screw rod (41), and through holes capable of allowing the ejector pin (21) to penetrate through are formed in the bottom of the first screw rod (41) and the positioning gland (42).
4. The roller chain quick-dismounting maintenance device according to claim 3, characterized in that one end of the thimble (21) is connected with a second screw (22), and the second screw (22) is connected with the inner side of the first screw (41) through threads.
5. The roller chain quick assembly disassembly maintenance device of claim 3, characterized in that, the first screw (41) is provided with a first step (43) inside, the thimble (21) is provided with a second step (23), and a spring (24) is connected between the first step (43) and the second step (23).
6. The roller chain quick-dismounting maintenance device according to claim 3, wherein the base (1) comprises a connecting portion (12), a first convex portion (13) and a second convex portion (14), the first convex portion (13) and the second convex portion (14) are respectively connected to the upper end and the lower end of the connecting portion (12), a groove is formed between the first convex portion (13) and the second convex portion (14), the first screw (41) is connected with the first convex portion (13), and the first positioning hole (11) is formed in the second convex portion (14).
7. The roller chain quick assembly disassembly maintenance device of any one of claims 1 to 6, characterized in that the first clamping jaw (31) is connected with a first connecting block (33), the second clamping jaw (32) is connected with a second connecting block (34), the base (1) is connected with a third screw (35) in a penetrating manner, the third screw (35) is provided with a first thread and a second thread with opposite spiral directions, the first connecting block (33) is connected with the first thread, and the second connecting block (34) is connected with the second thread.
8. The roller chain quick-assembly and disassembly maintenance device of claim 7, wherein the base (1) is provided with a sliding groove (15), and the first connecting block (33) and the second connecting block (34) are slidably connected with the sliding groove (15).
9. The roller chain quick assembly disassembly maintenance device of claim 7, wherein a third positioning hole is formed in the base (1), one end of the third screw (35) is arranged in the third positioning hole, and a bearing end cover (16) is arranged at the joint of the other end of the third screw (35) and the base (1).
10. The roller chain quick-release maintenance device according to claim 1, characterized in that a handle (5) is connected to the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197835.1U CN212071771U (en) | 2020-02-21 | 2020-02-21 | Roller chain quick assembly disassembly maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197835.1U CN212071771U (en) | 2020-02-21 | 2020-02-21 | Roller chain quick assembly disassembly maintenance device |
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| Publication Number | Publication Date |
|---|---|
| CN212071771U true CN212071771U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020197835.1U Active CN212071771U (en) | 2020-02-21 | 2020-02-21 | Roller chain quick assembly disassembly maintenance device |
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| CN (1) | CN212071771U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589406A (en) * | 2020-12-07 | 2021-04-02 | 山西力天世纪刀具有限公司 | Needle changing device of engraving machine |
| CN113334305A (en) * | 2021-07-06 | 2021-09-03 | 河南中烟工业有限责任公司 | Quick chain dismounting device |
| CN114161360A (en) * | 2021-11-26 | 2022-03-11 | 北京新风航天装备有限公司 | Tool for installing and disassembling interference fastener |
-
2020
- 2020-02-21 CN CN202020197835.1U patent/CN212071771U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589406A (en) * | 2020-12-07 | 2021-04-02 | 山西力天世纪刀具有限公司 | Needle changing device of engraving machine |
| CN113334305A (en) * | 2021-07-06 | 2021-09-03 | 河南中烟工业有限责任公司 | Quick chain dismounting device |
| CN113334305B (en) * | 2021-07-06 | 2024-03-19 | 河南中烟工业有限责任公司 | Quick chain dismounting device |
| CN114161360A (en) * | 2021-11-26 | 2022-03-11 | 北京新风航天装备有限公司 | Tool for installing and disassembling interference fastener |
| CN114161360B (en) * | 2021-11-26 | 2024-04-12 | 北京新风航天装备有限公司 | Be used for interference fastener installation and extracting tool |
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