CN220763541U - Thimble for extension tool and extension tool - Google Patents
Thimble for extension tool and extension tool Download PDFInfo
- Publication number
- CN220763541U CN220763541U CN202321900414.0U CN202321900414U CN220763541U CN 220763541 U CN220763541 U CN 220763541U CN 202321900414 U CN202321900414 U CN 202321900414U CN 220763541 U CN220763541 U CN 220763541U
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- China
- Prior art keywords
- thimble
- ejector pin
- cover
- seat
- rotatory
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- 241000748087 Hymenothrix Species 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
Abstract
The utility model discloses a thimble for an expanding tool and the expanding tool, which comprise a thimble, wherein the thimble comprises a thimble seat and a thimble head which are coaxially arranged, and the thimble seat is movably and detachably connected with the thimble head; the thimble is arranged into the movable detachable assembly, namely the thimble seat and the thimble head, so that when the vulnerable part of the thimble is replaced, the vulnerable thimble head can be directly detached for replacement without disassembling the whole expanding tool, and the purposes of saving time and labor and effectively protecting other parts of the expanding tool are achieved; the thimble for the expanding tool has the characteristics of simple structure and convenient use.
Description
Technical Field
The utility model relates to the field of expansion tools, in particular to a thimble for an expansion tool and the expansion tool.
Background
Due to the rising cost of metal copper tubing, polymeric tubing is popular in more and more residential and commercial building structures. One of the more common types of polymeric tubing is made of crosslinked polyethylene, commonly known as PEX. The polymer pipe fitting has good toughness, and is connected to the joint before the pipe orifice is completely contracted by utilizing the characteristic that the pipe orifice is slowly contracted after being expanded, the pipe orifice is tightly wrapped on the joint after the pipe orifice is completely contracted, and the more the expanded pipe orifice is close to a circle, the better the air tightness between the expanded pipe orifice and the connecting piece is. A typical building will have many joints and it is seen that the installation of the pipe elements involves expanding the mouths of many pipes.
The inventor's prior utility model CN115555484A discloses an intermittent rotary structure for an expanding tool and an expanding tool, wherein the intermittent rotary structure for an expanding tool relates to a rotary cam, a roller and a thimble, the roller is rotationally arranged at the tail part of the thimble, the roller is in contact connection with the circumferential side wall of the rotary cam, the front end part of the thimble is sleeved with a rotary sleeve, the tail part of the thimble is sleeved with a guide sleeve, the outer side wall of the thimble positioned in the rotary sleeve and the guide sleeve is sleeved with a spring, the thimble moves along the direction of a guide groove arranged on the guide sleeve, the outer side wall of the rotary sleeve is provided with a rotary gear in a transmission way, and the end face of the rotary sleeve close to the front end part of the thimble is provided with a plurality of extension parts; the end face of the rotary cam is provided with an incomplete gear, one side of the incomplete gear is provided with a first driven gear in a transmission way, the first driven gear is provided with an extension rod, and the extension rod extends to the rotary gear and is in transmission connection with the rotary gear through a second driven gear.
The inventor finds that in the process of actually using an expansion tool, the electric expansion tool of the existing PEX-A pipe fitting is realized by pushing the expansion head through the conical ejector pin, and the electric expansion tool has the structure that a friction pair mechanism with larger friction force exists, so that the easy damage degree of the ejector pin is second to that of a second easy damaged part of the expansion head, the ejector pin is replaced by a conventional maintenance method, an aluminum shell is required to be disassembled, and a roller wheel and a roller shaft arranged on the ejector pin are disassembled to replace the worn ejector pin. Therefore, when the thimble needs to be replaced, the whole expansion tool needs to be disassembled for replacement, which is not only labor-consuming, but also easy to cause damage to other parts of the expansion tool due to repeated disassembly and assembly. Therefore, there is an urgent need to provide a thimble for an expanding tool and an expanding tool to solve the above-mentioned problems.
Disclosure of Invention
In order to achieve the above object, the present inventors provide a thimble for an expanding tool, which comprises a thimble, wherein the thimble comprises a thimble seat and a thimble head coaxially arranged, and the thimble seat is movably and detachably connected with the thimble head.
As a preferable structure of the utility model, the front end part of the thimble seat is provided with an axle center hole, an internal thread is arranged in the axle center hole, and the tail end part of the thimble head is provided with an external thread which is matched with the internal thread.
As a preferable structure of the utility model, the utility model further comprises a fastening screw, the tail end of the jacking needle head is provided with a plug rod, the external thread is arranged at the end part of the plug rod far away from the jacking needle head, the outer side wall of the front end part of the jacking needle seat is provided with a threaded hole, and the fastening screw is in contact connection with one end of the plug rod close to the jacking needle head through the threaded hole.
As a preferable structure of the utility model, one end of the inserted link, which is close to the top needle head, is provided with an annular clamping groove, and the fastening screw is in contact connection with the annular clamping groove through a threaded hole.
As a preferable structure of the utility model, the front end part of the axle center hole is provided with a first step, and the tail end part of the top needle head is provided with a second step which is matched with the first step.
As a preferable structure of the utility model, the outer side wall of the tail end part of the top needle is provided with a third step.
In order to achieve the above object, the present inventors further provide an expanding tool, including a rotating cam, a roller and a thimble, where the thimble is the thimble for the expanding tool according to any one of the above utility models, the roller is rotatably disposed at the tail of the thimble, the roller is in contact with the circumferential side wall of the rotating cam, the front end of the thimble is sleeved with a rotating sleeve, the tail of the thimble is sleeved with a guiding sleeve, the outer side wall of the thimble located in the rotating sleeve and the guiding sleeve is sleeved with a spring, the thimble moves along the direction of a guiding groove disposed on the guiding sleeve, the outer side wall of the rotating sleeve is driven to be provided with a rotating gear, and the rotating gear intermittently rotates through a transmission assembly.
In order to achieve the above object, the present inventors further provide an expanding tool, including a rotating cam, a roller and a thimble, where the thimble is the thimble for the expanding tool according to the above summary, the roller is rotatably disposed at the tail of the thimble, the roller is in contact with a circumferential side wall of the rotating cam, a rotating sleeve is sleeved at the front end of the thimble, a guiding sleeve is sleeved at the tail of the thimble, springs are sleeved on outer side walls of the thimble located in the rotating sleeve and the guiding sleeve, the thimble moves along a direction of a guiding groove disposed on the guiding sleeve, a rotating gear is driven on the outer side wall of the rotating sleeve, and the rotating gear intermittently rotates through a transmission component, and when a contact point between the circumferential side wall of the rotating cam and the roller is located at a remote point or a remote range of the rotating cam, the threaded hole is disposed on the outer side wall of the thimble seat outside the rotating sleeve.
Compared with the prior art, the beneficial effects achieved by the technical scheme are as follows: the thimble is arranged into the movable detachable assembly, namely the thimble seat and the thimble head, so that when the vulnerable part of the thimble is replaced, the vulnerable thimble head can be directly detached for replacement without disassembling the whole expanding tool, and the purposes of saving time and labor and effectively protecting other parts of the expanding tool are achieved; the thimble for the expanding tool is simple in structure and convenient to use.
Drawings
FIG. 1 is a schematic view of a thimble structure according to an embodiment;
FIG. 2 is a cross-sectional view of a thimble according to an embodiment;
FIG. 3 is an exploded view of a thimble according to an embodiment;
FIG. 4 is a cross-sectional view of an expansion tool according to an embodiment;
FIG. 5 is a schematic view of an expanding tool according to the first embodiment;
FIG. 6 is a schematic diagram of a second embodiment of an expanding tool;
fig. 7 is a schematic diagram of a remote point and a remote range according to an embodiment.
Reference numerals illustrate:
1. a thimble; 101. a needle holder; 102. a needle head is propped against; 103. an axial hole; 104. an internal thread; 105. an external thread; 106. a fastening screw; 107. a rod; 108. a threaded hole; 109. an annular clamping groove; 110. a first step; 111. a second step; 112. a third step; 2. an expansion tool; 201. rotating the cam; 202. a roller; 203. a rotating sleeve; 204. a guide sleeve; 205. a spring; 206. a guide groove; 207. a rotary gear; 208. a transmission assembly; a. a remote point; b. remote range.
Detailed Description
In order to describe the technical content, constructional features, achieved objects and effects of the technical solution in detail, the following description is made in connection with the specific embodiments in conjunction with the accompanying drawings.
As shown in fig. 1, this embodiment provides a thimble for an expanding tool, which includes a thimble 1, the thimble includes a thimble seat 101 and a thimble head 102 coaxially arranged, and the thimble seat 101 is movably and detachably connected with the thimble head 102.
As shown in fig. 2 and 3, in the above embodiment, the front end of the ejector pin seat is provided with an axle center hole 103, an internal thread 104 is arranged in the axle center hole 103, and the tail end of the ejector pin head is provided with an external thread 105 matched with the internal thread; in the present embodiment, the ejector pin holder 101 and the ejector pin head 102 are movably and detachably linked by providing the internal screw thread 104 and the external screw thread 105.
In different embodiments, as shown in fig. 3, the device further comprises a fastening screw 106, the tail end of the top needle is provided with a plug rod 107, the external thread is arranged at the end of the plug rod far away from the top needle, the outer side wall of the front end of the top needle seat is provided with a threaded hole 108, and the fastening screw 106 is in contact connection with one end of the plug rod 107 close to the top needle through the threaded hole 108; in this embodiment, can further fasten the inserted bar through fastening screw for cooperation between thimble seat and the thimble head is more stable, avoids appearing becoming flexible.
As shown in fig. 3, in this embodiment, in order to further improve stability between the ejector pin seat and the ejector pin head, an annular clamping groove 109 is provided at an end of the insertion rod near the ejector pin head, and the fastening screw 106 is in contact connection with the annular clamping groove 109 through a threaded hole 108.
As shown in fig. 3, in order to facilitate the assembly connection between the ejector pin seat and the ejector pin head, a first step 110 is provided at the front end of the axial hole 103, and a second step 111 adapted to the first step 110 is provided at the rear end of the ejector pin 102. In some embodiments, as shown in FIGS. 1 and 3, to facilitate removal of tip 102, a third step 112 is provided on the outer sidewall of the trailing end portion of tip 102.
As shown in fig. 4 to 7, in various embodiments, there is further provided an expanding tool 2, including a rotating cam 201, a roller 202 and a thimble 1, where the thimble is the thimble for the expanding tool according to any one of the above embodiments, the roller 202 is rotatably disposed at the tail of the thimble, the roller 202 is in contact with a circumferential side wall of the rotating cam 201, a rotating sleeve 203 is sleeved at the front end of the thimble, a guiding sleeve 204 is sleeved at the tail of the thimble, springs 205 are sleeved at the outer side walls of the thimble disposed in the rotating sleeve and the guiding sleeve, the thimble moves along a direction of a guiding groove 206 disposed on the guiding sleeve, a rotating gear 207 is disposed on the outer side wall of the rotating sleeve, and the rotating gear 207 intermittently rotates through a transmission component 208, thereby driving the rotating sleeve 203 to intermittently rotate.
As shown in fig. 4 to 7, in some embodiments, there is further provided an expanding tool, including a rotating cam 201, a roller 202 and a thimble, where the thimble is the thimble for the expanding tool described in the above embodiments, the roller 202 is rotationally disposed at the tail of the thimble, the roller 202 is in contact with the circumferential side wall of the rotating cam 201, the front end of the thimble is sleeved with a rotating sleeve 203, the tail of the thimble is sleeved with a guiding sleeve 204, the outer side wall of the thimble located in the rotating sleeve and the guiding sleeve is sleeved with a spring 205, the thimble moves along a direction of a guiding groove 206 provided on the guiding sleeve, the outer side wall of the rotating sleeve 203 is driven to be provided with a rotating gear 207, and the rotating gear 207 is intermittently rotated by a transmission assembly 208, so as to drive the rotating sleeve 203 to intermittently rotate, as shown in fig. 7, and when the contact point between the circumferential side wall of the rotating cam and the roller is located at a remote point a or a remote range b of the rotating cam, the threaded hole is disposed on the outer side wall of the thimble base outside the rotating sleeve, at this time, as shown in fig. 6, the fastening screw can be located outside the rotating sleeve, so as to facilitate the assembly and disassembly of the fastening screw.
It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solution, directly or indirectly, to other relevant technical fields, all of which are included in the scope of the utility model.
Claims (6)
1. An extension instrument thimble, its characterized in that: the ejector comprises an ejector pin, wherein the ejector pin comprises an ejector pin seat and an ejector pin head which are coaxially arranged, and the ejector pin seat is movably and detachably connected with the ejector pin head;
the front end part of the thimble seat is provided with an axle center hole, an internal thread is arranged in the axle center hole, and the tail end part of the thimble head is provided with an external thread matched with the internal thread;
the needle jacking seat is characterized by further comprising a fastening screw, the tail end of the needle jacking seat is provided with a plug rod, the external thread is arranged at the end part of the plug rod, far away from the needle jacking seat, of the plug rod, the outer side wall of the front end part of the needle jacking seat is provided with a threaded hole, and the fastening screw is in contact connection with one end, close to the needle jacking seat, of the plug rod through the threaded hole.
2. The ejector pin for an expanding tool according to claim 1, wherein: the one end that the inserted bar is close to the top syringe needle is equipped with annular draw-in groove, fastening screw passes through screw hole and annular draw-in groove looks butt and is connected.
3. The ejector pin for an expanding tool according to claim 1, wherein: the front section end of the axle center hole is provided with a first step, and the tail end of the top needle head is provided with a second step matched with the first step.
4. The ejector pin for an expanding tool according to claim 1, wherein: the outer side wall of the tail end part of the top needle head is provided with a third step.
5. The utility model provides an extension instrument, its characterized in that includes rotating cam, roller and thimble, the thimble is the thimble for the extension instrument of arbitrary one of preceding claims 1 through 4, the afterbody of thimble is located in the roller rotation, the roller is connected with rotating cam's circumference lateral wall contact, the preceding tip cover of thimble is equipped with rotatory cover, the afterbody cover of thimble is equipped with the uide bushing, and the thimble lateral wall cover that is located rotatory cover and uide bushing is equipped with the spring, the thimble is along the guide way direction motion that sets up on the uide bushing, rotatory cover lateral wall transmission is equipped with rotatory gear, rotatory gear passes through drive assembly intermittent type formula and rotates.
6. The utility model provides an extension instrument, its characterized in that includes rotating cam, roller and thimble, the thimble is the thimble for the extension instrument of above-mentioned claim 1, the afterbody of thimble is located in the roller rotation, the roller is connected with rotating cam's circumference lateral wall contact, the tip cover of thimble is equipped with rotatory cover, the afterbody cover of thimble is equipped with the uide bushing, and the thimble lateral wall cover that is located rotatory cover and uide bushing is equipped with the spring, the thimble moves along the guide way direction that sets up on the uide bushing, rotatory cover lateral wall transmission is equipped with rotatory gear, rotatory gear passes through transmission assembly intermittent type formula and rotates, when rotating cam's circumference lateral wall and roller's contact point is located rotating cam's remote point or remote range, the needle file is located on rotatory outer thimble seat lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321900414.0U CN220763541U (en) | 2023-07-18 | 2023-07-18 | Thimble for extension tool and extension tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321900414.0U CN220763541U (en) | 2023-07-18 | 2023-07-18 | Thimble for extension tool and extension tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220763541U true CN220763541U (en) | 2024-04-12 |
Family
ID=90621530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321900414.0U Active CN220763541U (en) | 2023-07-18 | 2023-07-18 | Thimble for extension tool and extension tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220763541U (en) |
-
2023
- 2023-07-18 CN CN202321900414.0U patent/CN220763541U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |