Flange cover protection device

Abstract

The utility model relates to a protection device, in particular to a flange cover protection device. A flange cover protection device comprises a protection panel, a shrinkage and expansion sleeve, a locking nut and a limiting screw. The locking nut fixes the protection panel on the surface of the flange cover through the shrinkage and expansion sleeve, and the protection panel protects the flange cover; a plurality of supporting pieces are connected to the shrinkage-expansion sleeve, and the limiting screw rod is connected to the inner side of the shrinkage-expansion sleeve and used for pushing the supporting pieces so that the supporting pieces can abut against the inner wall of the flange. The top of the limiting screw is in threaded connection with a hand wheel which is used for controlling the limiting screw to move. The supporting piece comprises a shrinkage and expansion rod and a supporting rod, the supporting rod is connected to the shrinkage and expansion rod in a sleeving mode, and the shrinkage and expansion rod is inserted into the shrinkage and expansion sleeve. And the outer side of the expansion rod is sleeved with a spring. The utility model can be recycled and reused, and can be suitable for flange covers of various specifications, so that the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to a protection device, in particular to a flange cover protection device. Background Art

[0002] In industrial production, flanges are important components for connecting pipes and equipment, and they need to be frequently sandblasted, painted, and transported. However, these operations may damage the flange sealing surface and affect the sealing effect, so a device that can protect the flange sealing surface and facilitate assembly and disassembly is needed. Traditional flange protection methods have many inconveniences, such as complex assembly and disassembly, non-reusable, easy to be damaged by sandblasting, and ineffective protection, which cannot meet the requirements of modern industrial production for efficiency and sustainability. Utility Model Content

[0003] The utility model aims to provide a flange cover protection device, which solves the problem that the currently used flange cover protection method cannot be reused, resulting in high cost.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A flange cover protection device comprises a protection panel, an expansion sleeve, a locking nut and a limiting screw; the locking nut fixes the protection panel to the flange cover surface through the expansion sleeve, and the protection panel protects the flange cover; a plurality of support members are connected to the expansion sleeve, the limiting screw is connected to the inner side of the expansion sleeve, and the limiting screw is used to push the support member so that the support member rests against the inner wall of the flange.

[0006] Furthermore, the top of the limiting screw is threadedly connected to a hand wheel, and the hand wheel is used to control the movement of the limiting screw.

[0007] Furthermore, the support member comprises an expansion rod and a support rod, the support rod is sleeved on the expansion rod, and the expansion rod is inserted in the expansion sleeve; a spring is sleeved on the outer side of the expansion rod.

[0008] Furthermore, the expansion sleeve includes a connecting part and an inserting part, the connecting part is fixed on the inserting part; the connecting part is provided with a threaded hole, the limiting screw is threadedly connected in the threaded hole, and can move in the vertical direction through the thread; the inserting part is provided with a plurality of inserting holes, the number of the expansion rods corresponds to the inserting holes, and the expansion rods are correspondingly inserted in the inserting holes.

[0009] Furthermore, the limiting screw is provided with an external thread, and the limiting screw is threadedly connected to the shrinkage sleeve; the bottom of the limiting screw is conical, which is convenient for pushing the support member to move.

[0010] Furthermore, the inner side of the expansion rod is spherical, and the outer side is provided with a plug-in part, which is used to connect with the support rod; a limit block is provided on the plug-in part, which is used to prevent the support rod from moving on the plug-in part; an annular groove is provided on the inner side of the plug-in part, and the spring is fixed in the annular groove.

[0011] Furthermore, the protection panel is circular and its size matches that of the flange cover.

[0012] Furthermore, the surface of the protection panel is sprayed with sand glue paint.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] The utility model controls the limit screw to move in the vertical direction through the handle, and the limit screw can push the support member to move horizontally, so that the protective panel is attached to the flange cover and the flange cover is protected. The limit screw supports the support member on the inner wall of the flange, so that the device is fixed on the flange to protect the flange cover. The utility model can also be recycled to reduce the production cost. When adapting to flanges of different specifications, it is only necessary to replace the support rod and the protective panel plugged into the expansion rod with the support rod and the protective panel that are compatible with the existing flange. The utility model can be recycled and reused, and can be applied to flange covers of various specifications, reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a flange cover protection device.

[0016] Figure 2 The figure is a cross-sectional view of a flange cover protection device.

[0017] Figure 3 A schematic diagram of the support.

[0018] Figure 4 It is a schematic diagram of the connection between the expansion sleeve and the support member.

[0019] Figure 5 Schematic diagram of the shrinkage sleeve. DETAILED DESCRIPTION

[0020] like Figures 1 to 5As shown, a flange cover protection device includes a protection panel 1, a shrink sleeve 2, a locking nut 3 and a limiting screw 4; the locking nut 3 fixes the protection panel 1 on the surface of the flange cover through the shrink sleeve 2, and the protection panel 1 protects the flange cover; a plurality of support members 6 are connected to the shrink sleeve 2, and the limiting screw 4 is connected to the inner side of the shrink sleeve 2, and the limiting screw 4 is used to push the support member 6 so that the support member 6 is against the inner wall of the flange 5. The top bolt of the limiting screw 4 is connected to the hand wheel 7, and the hand wheel 7 is used to control the movement of the limiting screw 4. The technical worker rotates the hand wheel 7 to make the limiting screw 4 move downward, and the bottom of the limiting screw 4 pushes the support member 6 to move outward, and finally makes the support member 6 against the inner wall of the flange 5, and the protection panel 1 is fixed to the flange cover through the locking nut 3 to protect the flange cover. When recycling is carried out, the technical worker reverses the hand wheel 7 to move the limit screw 4 upward. When the limit screw 4 moves upward, the spring 8 provides a contraction force for the support member 6, so that the support member 6 does not abut against the inner side of the flange 5. At this time, the device is removed and the recycling is completed.

[0021] The support member 6 includes a shrinking rod 11 and a support rod 12, wherein the support rod 12 is sleeved on the shrinking rod 11, and the shrinking rod 11 is inserted into the shrinking sleeve 2; a spring 8 is sleeved on the outer side of the shrinking rod 11. When the support rod 12 leaves the inner wall of the flange 5, the spring 8 will apply elastic force to quickly return the support rod 12 to complete the recovery.

[0022] The expansion sleeve 2 includes a connecting portion 13 and an inserting portion 14, wherein the connecting portion 13 is fixed on the inserting portion 14; a threaded hole 15 is provided on the connecting portion 13, and the limiting screw 4 is threadedly connected in the threaded hole 15 and can move in the vertical direction through the thread; a plurality of inserting holes 16 are provided on the inserting portion 14, and the number of the expansion rods 11 corresponds to the inserting holes 16 one by one, and the expansion rods 11 are correspondingly inserted in the inserting holes 16.

[0023] The limit screw 4 is provided with an external thread, and the limit screw 4 is threadedly connected to the shrink sleeve 2; the bottom of the limit screw 4 is conical, which is convenient for pushing the support member 6 to move. The inner side of the shrink rod 11 is spherical, and the outer side is provided with a plug-in portion 14, which is used to connect with the support rod 12; the plug-in portion 14 is provided with a limit block 17, which is used to prevent the support rod 12 from moving on the plug-in portion 14; the inner side of the plug-in portion 14 is provided with an annular groove 18, and the spring 8 is fixed in the annular groove 18. When the limit screw 4 moves downward, the bottom of the limit screw 4 is conical, so that it can push the support member 6 more smoothly, reducing the friction between the limit screw 4 and the shrink rod 11. The inner side of the expansion rod 11 is spherical. When the limit screw 4 moves downward, the inner side of the expansion rod 11 smoothly docks with the bottom of the limit screw 4, reducing the friction between the limit screw 4 and the expansion rod 11, so that the support rod 12 quickly abuts against the inner wall of the flange 5.

[0024] The protective panel 1 is circular and its size matches the flange cover. When the specification of the protective panel 1 needs to be changed, it is only necessary to open the locking nut 3, remove the hand wheel 7, and replace it with a protective panel 1 that matches the specification of the new flange cover. The surface of the protective panel 1 is sprayed with sand glue paint, which can better protect the flange cover.

[0025] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A flange cover protection device, characterized in that: It includes a protective panel, an expansion sleeve, a locking nut and a limiting screw; the locking nut fixes the protective panel to the surface of the flange cover through the expansion sleeve, and the protective panel protects the flange cover; a plurality of supporting members are connected to the expansion sleeve, and the limiting screw is connected to the inner side of the expansion sleeve, and the limiting screw is used to push the supporting member so that the supporting member rests against the inner wall of the flange.

2. A flange cover protection device according to claim 1, characterized in that: The top of the limiting screw is threadedly connected to a hand wheel, and the hand wheel is used to control the movement of the limiting screw.

3. A flange cover protection device according to claim 1, characterized in that: The support member comprises a shrinking rod and a support rod, the support rod is sleeved on the shrinking rod, and the shrinking rod is inserted in the shrinking sleeve; a spring is sleeved on the outer side of the shrinking rod.

4. A flange cover protection device according to claim 3, characterized in that: The expansion sleeve includes a connecting part and an inserting part, wherein the connecting part is fixed on the inserting part; a threaded hole is provided on the connecting part, and a limiting screw is threadedly connected in the threaded hole and can move in a vertical direction through the thread; a plurality of inserting holes are provided on the inserting part, and the number of the expansion rods corresponds to the inserting holes one by one, and the expansion rods are correspondingly inserted in the inserting holes.

5. The flange cover protection device according to claim 1, characterized in that: The limiting screw is provided with an external thread, and the limiting screw is threadedly connected to the shrinkage sleeve; the bottom of the limiting screw is conical, which is convenient for pushing the support member to move.

6. A flange cover protection device according to claim 3, characterized in that: The inner side of the expansion rod is spherical, and the outer side is provided with a plug-in part, which is used to connect with the support rod; the plug-in part is provided with a limit block, which is used to prevent the support rod from moving on the plug-in part; the inner side of the plug-in part is provided with an annular groove, and the spring is fixed in the annular groove.

7. The flange cover protection device according to claim 1, characterized in that: The protective panel is circular and its size is matched with the flange cover.

8. The flange cover protection device according to claim 1, characterized in that: The surface of the protection panel is sprayed with sand glue paint.

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