CN214686349U

CN214686349U - Flange fastening tool

Info

Publication number: CN214686349U
Application number: CN202120560162.6U
Authority: CN
Inventors: 王宁; 刘猛; 邵正虎
Original assignee: Suzhou Boying Medical Technology Co ltd
Current assignee: Suzhou Boying Medical Technology Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-11-12
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a flange fastening tool, its characterized in that: the flange plate positioning device comprises a sleeve and an operating mechanism, wherein the sleeve is integrally cylindrical, the bottom of the sleeve is provided with at least 2 raised pins used for being embedded into corresponding hole grooves on a flange plate, and the upper edge of the sleeve is circumferentially provided with a plurality of positioning holes; the operating mechanism is provided with a clamping part matched with the outer diameter of the sleeve, a handle fixedly connected to the clamping part and a locking mechanism arranged on the handle, the locking mechanism is provided with a plunger matched with a positioning hole in the sleeve, and the clamping part is sleeved on the periphery of the sleeve in a sliding manner; the operating mechanism and the sleeve are in two connection states, namely a locking state and a sliding state, the plunger is clamped in a positioning hole in the sleeve in the locking state, and the end part of the plunger is positioned outside the positioning hole in the sliding state. The utility model provides a fastening with dismantle the inconvenient problem of operation when flange to solve other instrument fastens and the not enough problem of fastening force when dismantling the flange.

Description

Flange fastening tool

Technical Field

The utility model relates to a hand tool for fastening operation, concretely relates to fastening tool that is used for the installation of screw thread flange or dismantles usefulness.

Background

A flange is a commonly used connecting member. The threaded flange is a non-welding flange, wherein an inner hole of the flange is processed into pipe threads, and the threaded flange is matched with a pipe with threads to realize connection. Compared with a flat welding flange or a butt welding flange, the threaded flange has the characteristics of convenience in installation and maintenance, and can be used on pipelines which are not allowed to be welded on some fields.

When the threaded flange is installed, the flange plate needs to be locked. In the prior art, the lock is usually locked by hand or a belt wrench, and the defect is that the fastening force is insufficient when the lock is screwed by bare hand; the problem of inconvenient use and insufficient fastening force exists when the belt wrench is used for screwing.

Therefore, there is a need for a fastening tool for a locking flange. At the same time, the space limitation of the installation site and the restriction of the nearby connecting pipeline should be considered, so that the tool can adapt to the application requirements of different installation sites.

Disclosure of Invention

The invention aims to provide a flange fastening tool to solve the problems of the prior screw thread panne during locking and dismounting.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: a flange fastening tool comprises a sleeve and an operating mechanism, wherein the sleeve is integrally cylindrical, the bottom of the sleeve is provided with at least 2 raised pins used for embedding corresponding hole grooves in a flange plate, and the upper edge of the sleeve is circumferentially provided with a plurality of positioning holes;

the operating mechanism is provided with a clamping part matched with the outer diameter of the sleeve, a handle fixedly connected to the clamping part and a locking mechanism arranged on the handle, the locking mechanism is provided with a plunger matched with a positioning hole in the sleeve, and the clamping part is sleeved on the periphery of the sleeve in a sliding manner;

the operating mechanism and the sleeve are in two connection states, namely a locking state and a sliding state, the plunger is clamped in a positioning hole in the sleeve in the locking state, and the end part of the plunger is positioned outside the positioning hole in the sliding state.

Among the above-mentioned technical scheme, sleeve and operating device are two subassemblies that mutually support, and operating device can select suitable angle to be connected to the sleeve according to the operating space condition, drives the ring flange through the sleeve and rotates under the locking state, and when the rotational position was limited, unblock operating device to slip state, readjustment operating device's position and rotation after locking once more, the fastening or the dismantlement of ring flange can be realized to repeated above-mentioned operation. Moreover, a plurality of sleeves with different specifications can be provided corresponding to one operating mechanism, and the corresponding sleeves are selected to be connected according to the specifications of the flange (such as the diameter of the flange, the distribution of holes and grooves on the flange and the like) when in use.

According to a further technical scheme, the sleeve is of a split structure and is formed by embedding two half-columns, the cross section of each half-column is in a fan-shaped ring shape, matched grooves or protrusions are respectively arranged on the parts, connected with each other, of the two half-columns, the protrusion of one half-column is clamped into the groove of the other half-column and is connected in a positioning mode through a pin shaft or a clamping bead structure. The sleeve can thus be disassembled and assembled, and when the flange is connected to a pipe or other device, the sleeve can be easily attached to the flange.

According to the technical scheme, the sleeve is divided into a higher-level barrel body and a lower-level barrel body along the axial direction, the outer diameter of the higher-level barrel body is smaller than that of the lower-level barrel body, and the clamping portion of the operating mechanism is matched with the outer diameter of the higher-level barrel body. Through the arrangement, for the flange plates with different specifications, the same operation mechanism can be used for operation as long as the size of the lower-level barrel body is changed to be matched with the flange plate, and the specifications of the upper-level barrel body are consistent.

According to the preferred technical scheme, the clamping part is in a major arc shape, and the handle is connected to the other end opposite to the major arc opening.

In the above technical solution, the locking mechanism includes a sliding block, a plunger, a movable handle and an elastic member; the sliding block is limited by at least one pair of limiting columns and is connected with the handle in a sliding mode, the plunger is arranged at one end of the sliding block, the sliding block has two stable positions relative to the handle, when the sliding block slides towards the direction of the clamping part to reach the first position, the plunger is clamped in a positioning hole in the sleeve, when the sliding block slides towards the direction far away from the clamping part to reach the second position, the end portion of the plunger is located outside the positioning hole; the movable handle is rotatably connected with the handle through a rotating shaft, one end part of the movable handle is matched with the sliding block, the end face of the end part is in a cam shape, the elastic piece is connected between one side of the movable handle and the sliding block, when the elastic piece is in a stretching state, the end part of the movable handle tightly supports against the sliding block, the sliding block is located at a first position, the plunger is arranged in the positioning hole, the operating mechanism is in a locking state relative to the sleeve, when the elastic piece is in a resetting state, the sliding block retracts to be located at a second position, the plunger is separated from the positioning hole, and the operating mechanism is in a sliding state relative to the sleeve.

According to the preferable technical scheme, the plunger is installed at one end of the sliding block through a threaded structure. The relative position of the plunger and the sliding block can be adjusted, and the position of the end of the plunger is changed.

According to the further technical scheme, a limiting pin is arranged on the handle, and when the movable handle rotates to the position of the jacking sliding block, the movable handle is limited by the limiting pin.

Preferably, the elastic member is a tension spring.

In the technical scheme, the number of the pins on the sleeve is less than or equal to that of the holes and the grooves on the flange plate, and the positions of the pins are matched with those of the holes and the grooves on the flange plate.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. the utility model has the advantages that the diameter of the sleeve is consistent with that of the flange plate by embedding the pin at the bottom of the sleeve into the hole groove of the flange plate, thus not occupying the operation space;

2. the tool of the utility model is composed of a sleeve and an operating mechanism, thereby simplifying the rotary structure and facilitating the operation;

3. the sleeve of the utility model is formed by embedding in a split structure, and is suitable for various occasions;

4. adopt the utility model discloses an instrument has avoided the not enough and inconvenient problem of operation of fastening force.

Drawings

FIG. 1 is a schematic view of a sleeve in an embodiment;

FIG. 2 is an exploded view of the split sleeve of the embodiment;

FIG. 3 is a schematic view showing the open and close state of the sleeve;

FIG. 4 is a schematic view of the operating mechanism in a sliding state;

FIG. 5 is a schematic view of the operating mechanism in a locked state;

fig. 6 is a schematic view of the combined working state of the sleeve and the operating mechanism.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

the first embodiment is as follows: referring to fig. 6, a flange fastening tool is shown, which is divided into a sleeve 100 and an operating mechanism 200 for performing a fastening or detaching operation on a flange 300.

Referring to fig. 1 to 3, the upper edge of the sleeve 100 is provided with a positioning hole 104; the bottom is provided with at least 2 protruding pins 103; referring to fig. 2, the sleeve 100 is composed of two parts that can be opened and closed, and the two parts are opened by rotating the shaft pin 101 and fixed by the suction ball 102 when closed. The number and position of the pins 103 are determined according to the flange to be mounted;

referring to fig. 4 and 5, the operating mechanism 200 is provided with a preferably arc-shaped catch portion 201, a handle 203, a slide block 204, a plunger 205, a movable handle 206, an elastic member 207, and the like. The sliding block 204 is limited by a pair of limiting columns 208 and is connected with the handle 203 in a sliding mode, and the limiting columns 208 can be bolts or rivets. Plunger 205 is disposed at one end of slider 204; the movable handle 206 is rotatably connected with the handle 203 through a rotating shaft 209, the rotating shaft 290 can be a bolt, one end 211 of the movable handle 206 is matched with the sliding block 204, the end surface of the end 211 is in a cam shape, and the elastic element 207 is connected between one side of the movable handle 206 and the sliding block 204. As shown in fig. 5, when the elastic member 207 is in the stretched state, the end 211 of the movable handle 206 presses against the sliding block 204, the sliding block 204 is located at the first position, the plunger 205 extends into a positioning hole, and the operating mechanism is in the locked state; as shown in fig. 4, when the elastic member 207 is in the reset state, the sliding block 204 is retracted to be located at the second position, the end of the plunger 205 is located outside the positioning hole, and the operating mechanism is in the sliding state.

When the tool is used, the plunger 205 in the operating mechanism 200 can be horizontally adjusted in advance, so that when the movable handle 206 is stressed, the plunger 205 and the positioning hole 104 in the sleeve 200 are better embedded and meshed for use; aligning the pin 103 of the sleeve 100 with the hole groove of the flange such that the pin 103 is inserted into the hole groove of the flange; the clamping part 201 of the operating mechanism 200 is sleeved into the upper-level barrel body 105 of the sleeve, so that the plunger 205 of the operating mechanism 200 is aligned with the positioning hole 104 on the upper edge of the sleeve, the movable handle 206 is tightened, the handle is rotated, and the flange is fastened. When the movable handle 206 is forced, the end 211 pushes the sliding block 204, so that the plunger 205 mounted on the sliding block 204 enters the positioning hole 104, thereby rotating the flange. During rotation, if the operating space is limited, the movable handle 206 may be loosened, allowing the plunger 205 to be replaced in the next detent hole.

The use method of the tool for disassembling the flange is the same.

Claims

1. A flange fastening tool characterized by: the flange plate positioning device comprises a sleeve and an operating mechanism, wherein the sleeve is integrally cylindrical, at least 2 raised pins used for being embedded into corresponding hole grooves in a flange plate are arranged at the bottom of the sleeve, and a plurality of positioning holes are circumferentially distributed at the upper edge of the sleeve;

2. The flange fastening tool of claim 1, wherein: the sleeve is of a split structure and is formed by embedding two half-columns, the cross section of each half-column is in a fan-shaped ring shape, matched grooves or protrusions are respectively arranged on the parts, connected with each other, of the two half-columns, the protrusions of one half-column are clamped into the grooves of the other half-column and are connected in a positioning mode through pin shafts or clamping bead structures.

3. The flange fastening tool according to claim 1 or 2, characterized in that: the sleeve is divided into a higher-level barrel body and a lower-level barrel body along the axial direction, the outer diameter of the higher-level barrel body is smaller than that of the lower-level barrel body, and the clamping portion of the operating mechanism is matched with the outer diameter of the higher-level barrel body.

4. The flange fastening tool of claim 3, wherein: the clamping part is in a major arc shape, and the handle is connected to the other end opposite to the major arc opening.

5. The flange fastening tool of claim 1, wherein: the locking mechanism comprises a sliding block, a plunger, a movable handle and an elastic piece; the sliding block is limited by at least one pair of limiting columns and is connected with the handle in a sliding mode, the plunger is arranged at one end of the sliding block, the sliding block is provided with two stable positions relative to the handle, when the sliding block is located at the first position, the plunger is clamped in a positioning hole in the sleeve, and when the sliding block is located at the second position, the end portion of the plunger is located outside the positioning hole; the movable handle is rotatably connected with the handle through a rotating shaft, one end part of the movable handle is matched with the sliding block, the end surface of the end part is in a cam shape, and the elastic piece is connected between one side of the movable handle and the sliding block; when the elastic piece is in a stretching state, the end part of the movable handle tightly pushes the sliding block, the sliding block is located at a first position, the plunger is arranged in the positioning hole, and the operating mechanism is in a locking state relative to the sleeve; when the elastic piece is in a reset state, the sliding block retracts to be located at the second position, the plunger is separated from the positioning hole, and the operating mechanism is in a sliding state relative to the sleeve.

6. The flange fastening tool of claim 5, wherein: the plunger is installed through the helicitic texture in sliding block one end.

7. The flange fastening tool of claim 5, wherein: the handle is provided with a limiting pin, and when the movable handle rotates to the position of the jacking sliding block, the movable handle is limited by the limiting pin.

8. The flange fastening tool of claim 5, wherein: the elastic piece is a tension spring.

9. The flange fastening tool of claim 1, wherein: the number of the pins on the sleeve is less than or equal to that of the hole grooves on the flange plate, and the positions of the pins are matched with those of the hole grooves on the flange plate.