CN219946061U - Flange expansion device - Google Patents
Flange expansion device Download PDFInfo
- Publication number
- CN219946061U CN219946061U CN202321137629.1U CN202321137629U CN219946061U CN 219946061 U CN219946061 U CN 219946061U CN 202321137629 U CN202321137629 U CN 202321137629U CN 219946061 U CN219946061 U CN 219946061U
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- CN
- China
- Prior art keywords
- screw
- flange
- expansion device
- screw rod
- base
- 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.)
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- 238000000034 method Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model relates to a flange mouth expanding device which comprises a mouth expander and a clamping and rotating mechanism for clamping and rotating the mouth expander, wherein the mouth expander comprises a base, a screw rod and balls, the bottom of the screw rod is connected with the base, the balls are embedded in the top of the screw rod, and the top of the screw rod is provided with a clamping and matching part matched with the clamping end of the clamping and rotating mechanism. Compared with the prior art, the utility model has the advantages of portability and small occupied space range, and can be used in various space environments.
Description
Technical Field
The utility model relates to the technical field of mouth expander, in particular to a flange mouth expanding device.
Background
When the valve is disassembled and assembled, the connecting flange is required to be pried for a certain gap to meet the requirement of disassembly and assembly, and the prior art adopts the expansion device to expand the flange so as to achieve the purpose of disassembling and assembling the valve. For example, the adjustable hydraulic flange expander disclosed in CN208663663U is a hydraulic expander, and the expander can be used to efficiently disassemble and assemble the valve, but the above-mentioned devices are heavy and difficult to use in a limited space.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the flange opening expanding device which has the advantages of light weight and small occupied space range and can be used in various space environments.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a flange opening expanding device which comprises an opening expanding device and a clamping and rotating mechanism used for clamping and rotating the opening expanding device, wherein the opening expanding device comprises a base, a screw rod and balls, the bottom of the screw rod is connected with the base, the balls are embedded in the top of the screw rod, and the top of the screw rod is provided with a clamping and matching part matched with the clamping end of the clamping and rotating mechanism.
Preferably, a cavity for embedding the ball is formed in the top of the screw rod, and the structural size of the cavity is matched with that of the ball.
Preferably, the balls are in clearance fit with the screw rod.
Preferably, the screw is a T-shaped screw.
Preferably, the top section of the screw rod is hexagonal.
Preferably, the screw rod is connected with the base through threads.
Preferably, the side surface of the screw rod is provided with threads, and the inside of the base is provided with internal threads matched with the threads of the side surface of the screw rod.
Preferably, the screw thread arranged on the side surface of the screw rod is a T-shaped screw thread.
Preferably, the base is in a truncated cone structure.
Preferably, the clamping and rotating mechanism is an open spanner or a spanner wrench.
Compared with the prior art, the utility model has the following advantages:
(1) According to the flange expansion device, the base is arranged, the screw rod connected with the base, the ball embedded in the top of the screw rod and the clamping rotating mechanism used for clamping the rotary expansion device are arranged, so that a worker clamps the screw rod through the clamping rotating mechanism and drives the screw rod to rotate and stretch to expand to two sides, the purpose of flange expansion is achieved, the valve is taken out, and the flange expansion device has the advantages of being light in weight and small in occupied space range and can be used in various space environments.
(2) According to the flange opening expanding device, the ball is in clearance fit with the screw rod, so that the top of the screw rod is prevented from being in direct contact with the flange, the ball is concentrated to be stressed in the opening expanding process, and further friction force between the flange and the flange opening expanding device is reduced, and the purpose of opening the flange can be achieved more easily.
(3) According to the flange expansion device, the threads on the side surface of the screw rod are T-shaped threads, so that larger pressure can be borne.
(4) According to the flange opening expanding device, the screw rod is a T-shaped screw rod, the top section of the screw rod is hexagonal, and the flange opening expanding device can better rotate through the clamping rotating mechanism to complete opening expanding of the opening expanding device.
Drawings
Fig. 1 is a schematic structural diagram of an expander of a flange expansion device according to this embodiment.
Fig. 2 is a front view of the embodiment shown in fig. 1.
Fig. 3 is a cross-sectional view of the embodiment A-A shown in fig. 2.
FIG. 4 is an assembly view of the embodiment of FIG. 1 with a flange.
The figure indicates:
1. the device comprises a base, 2, a screw rod, 3, balls, 4, a flange, 5 and a valve.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
Examples:
referring to fig. 1 to 3, the present embodiment provides a flange expansion device, which includes an expansion device and a clamping and rotating mechanism for clamping and rotating the expansion device, the expansion device includes a base 1, a screw rod 2 and balls 3, the bottom of the screw rod 2 is connected with the base 1, the balls 3 are embedded at the top of the screw rod 2, and the top of the screw rod 2 is provided with a clamping and matching portion matched with a clamping end of the clamping and rotating mechanism.
Referring to fig. 4, when using the flange expansion device provided in this embodiment, a worker inserts the expansion device between two flanges 4, the base 1 is abutted against the flange 4 close to the valve, the ball 3 is abutted against the flange 4 far away from the valve, the clamping matching portion of the screw rod 2 is clamped by the clamping and rotating mechanism, and drives the screw rod 2 to rotate and stretch, expand to two sides, achieve the purpose of flange expansion, and take out the valve 5. The flange expansion device provided by the embodiment has the advantages of portability and small occupied space range, and can be used in various space environments.
As an optional implementation mode, the top of lead screw 2 is equipped with the cavity that is used for placing ball 3, and the structure size of this cavity cooperatees with the structure size of ball 3, clearance fit between ball 3 and the lead screw 2 has avoided the direct contact of lead screw 2 top and flange for at the bloated mouthful in-process, concentrate on ball 3 atress, and then reduce the frictional force between flange and the flange bloated mouthful ware that this embodiment provided, can more easily reach the purpose of flange bloated mouthful.
As an alternative embodiment, the screw rod 2 is a T-shaped screw rod, in this embodiment, the top section of the screw rod 2 is hexagonal, the clamping and rotating mechanism is an open wrench or an adjustable wrench, and the top of the screw rod 2 is clamped and rotated by the wrench to drive the screw rod 2 to rotationally extend.
As an alternative embodiment, the lateral surface of the screw 2 is provided with a T-shaped thread, which is able to withstand greater pressures.
As an alternative embodiment, the base 1 has a truncated cone structure, and an internal thread matched with the thread on the side surface of the screw rod 2 is arranged in the base 1.
Preferably, the flange expansion device provided by the embodiment is used for disassembling and assembling the clamp butterfly valve with better effect because the pressure of the clamp butterfly valve is lower.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a flange mouth expanding device, its characterized in that includes the mouth expander and is used for the centre gripping rotation of centre gripping rotation mechanism of mouth expander, the mouth expander includes base (1), lead screw (2) and ball (3), the bottom of lead screw (2) with base (1) are connected, ball (3) embedded in the top of lead screw (2), the top of lead screw (2) be equipped with centre gripping rotary mechanism's holding end matched with centre gripping cooperation portion.
2. Flange expansion device according to claim 1, characterized in that the top of the screw (2) is provided with a cavity for embedding the ball (3), the structural size of the cavity being matched with the structural size of the ball (3).
3. A flange expansion device according to claim 1, characterized in that the balls (3) are in a clearance fit with the screw (2).
4. Flange expansion device according to claim 1, characterized in that the screw (2) is a T-shaped screw.
5. A flange expansion device according to claim 4, characterized in that the top section of the screw (2) is hexagonal.
6. Flange expansion device according to claim 1, characterized in that the screw (2) is screwed to the base (1).
7. Flange expansion device according to claim 6, characterized in that the screw (2) is provided with a screw thread on the side surface, and the base (1) is provided with an internal screw thread in cooperation with the screw thread on the side surface of the screw (2).
8. Flange expansion device according to claim 7, characterized in that the screw thread provided on the side surface of the screw (2) is a T-thread.
9. A flange-bellmouth arrangement according to claim 1, characterized in that the base (1) has a truncated cone structure.
10. A flange expansion device according to claim 1, wherein the clamping and rotating mechanism is an open spanner or a spanner wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321137629.1U CN219946061U (en) | 2023-05-12 | 2023-05-12 | Flange expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321137629.1U CN219946061U (en) | 2023-05-12 | 2023-05-12 | Flange expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219946061U true CN219946061U (en) | 2023-11-03 |
Family
ID=88536273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321137629.1U Active CN219946061U (en) | 2023-05-12 | 2023-05-12 | Flange expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219946061U (en) |
-
2023
- 2023-05-12 CN CN202321137629.1U patent/CN219946061U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |