Hard plastic flange protective cover

Abstract

The utility model provides a hard plastic flange protective cover, which relates to the technical field of flange protective covers, and comprises an upper protective cover and a lower protective cover, the lower end of the upper protective cover is contacted with the upper end of the lower protective cover, a fixing mechanism is arranged outside the upper protective cover, and the fixing mechanism comprises a first sealing plate. A driving handle is rotated to drive a screw rod to rotate, a threaded block moves, a connecting clamping block is tightly extruded and fixed under the action of components such as a supporting rod and a slope extrusion block, and compared with buckle type connection, the connecting clamping block is tightly matched with a through groove and the slope extrusion block, so that the overall sealing performance is greatly improved, and corrosive liquid can be effectively prevented from seeping out; the epoxy resin coating can effectively resist corrosion of corrosive liquid, the service life of the protective cover is prolonged, the inclined flow guide groove and the flow guide pipe are matched with the collecting bottle, absorbed liquid can be discharged in time, corrosion caused by long-term storage of the liquid in the protective cover is avoided, special mechanical tool operation is not needed during disassembly and assembly, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange protection cover technical field especially relates to a hard plastic flange protection cover. BACKGROUND

[0002] The flange protection cover is the equipment for preventing the corrosion liquid in the flange connecting pipeline from splashing to the personnel or equipment, and protecting the flange, and currently the hard plastic flange protection cover is usually fixed by the buckle type, but when the liquid is sprayed at the flange connecting position, the impact force can easily lead to the buckle falling off, thereby easily causing the harm to the surrounding crowd.

[0003] For example, a kind of hard plastic flange protection cover is disclosed in Chinese patent document (publication number: CN213452229U), this patent although the setting of connecting block, sliding slot, movable block, mounting block, clamping block and movable shaft, two half-round protection covers are connected by connecting block and movable block, the movable shaft is used to rotatably connect between connecting block and movable block, the two half-round protection covers are wrapped in the inside of flange, and mounting block and clamping block are used to clamping connection, with simple structure and convenient disassembly.

[0004] However, the two half-round protection covers are poorly fitted by the buckle type connection, it is difficult to ensure that the two half-round protection covers are completely fitted due to manufacturing process error and vibration in use process and other factors, even if it seems to be well fitted at the initial installation, but with the passage of time, under the influence of pipeline vibration, temperature change and other working conditions, small gap can easily appear at the connecting position, which leads to the sealing performance being greatly reduced, so that corrosive liquid can seep out of the gap, not only cannot effectively play a protective role, but also can potentially threaten the surrounding environment and equipment, and when the liquid is sprayed at the flange connecting position, although the sponge pad absorbs the liquid, the liquid is stored in the protection cover for a long time, which not only reduces the performance of the protection cover, but also easily corrodes the protection cover, reduces the service life. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art, and the buckle type is used to connect and fix the protection cover, which can easily reduce the sealing performance, and the sprayed liquid is stored in the protection cover for a long time, which can easily reduce the service life.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of hard plastic flange protection cover, including upper protection cover and lower protection cover, the lower end of the upper protection cover is in contact with the upper end of the lower protection cover, the outside of the upper protection cover is provided with fixed mechanism, and fixed mechanism includes first sealing plate, the opposite surface of two first sealing plates is symmetrically distributed and fixedly connected with the outside of the upper protection cover.

[0008] The upper end of the first sealing plate is provided with a through slot in symmetrical distribution, the upper end of the first sealing plate is rotationally connected with a screw rod through a bearing, the upper end of the screw rod is fixedly connected with a driving handle, and the outer portion of the screw rod is threadedly connected with a threaded block.

[0009] Preferably, the two sides of the threaded block are fixedly connected with first supports in symmetrical distribution, the inner wall of the first support is hingedly connected with a supporting rod through a pin shaft, and one end of the supporting rod is hingedly connected with a second support through a pin shaft.

[0010] Preferably, one side of the second support is fixedly connected with an inclined extrusion block, and the upper end of the first sealing plate is provided with a limiting sliding groove in symmetrical distribution.

[0011] Preferably, the inner wall of the limiting sliding groove is slidingly connected with a limiting sliding block, the upper end of the limiting sliding block is fixedly connected with the lower end of the inclined extrusion block, the outer portion of the lower protective cover is fixedly connected with second sealing plates in symmetrical distribution, and the upper end of the second sealing plate is in contact with the lower end of the first sealing plate.

[0012] Preferably, the upper end of the second sealing plate is fixedly connected with connecting clamping blocks in symmetrical distribution, the upper end of the connecting clamping block is slidingly inserted into the inner wall of the through slot and extends above the first sealing plate.

[0013] Preferably, one side of the connecting clamping block is provided with an extrusion inclined groove, the inner wall of the extrusion inclined groove is movably inserted into one end of the inclined extrusion block, the two sides of the upper protective cover and the lower protective cover are provided with sealing grooves in symmetrical distribution, and the inner wall of the sealing groove is provided with a sealing gasket.

[0014] Preferably, the inner wall of the upper protective cover and the lower protective cover is provided with an epoxy resin coating, the inner wall of the lower protective cover is provided with an inclined flow guide groove, the inner bottom wall of the inclined flow guide groove is fixedly connected with a flow guide pipe, and the lower end of the flow guide pipe extends below the lower protective cover and is threadedly connected with a collecting bottle.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses a fixed mechanism makes its rotary drive handle drive screw rotation, makes threaded block shift, through the support rod, the slope extruding block etc. action, tightly extrude and fix the connecting clamping block, compares the buckle type connection, and the connecting clamping block is tightly matched with the through groove and the slope extruding block, and the overall sealing property is greatly improved, can effectively prevent the corrosive liquid seepage, and the epoxy resin coating can effectively resist the corrosive liquid erosion, prolongs the service life of protective cover, and the inclined flow guide groove and the flow guide pipe cooperation collection bottle can discharge the liquid absorbed in time, avoid the liquid long -term storage in the protective cover and cause the corrosion, and when dismounting, need not special mechanical tool operation, improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a main body structure schematic diagram of hard plastic flange protective cover,

[0018] Figure 2 The utility model provides an upper protective cover structure perspective drawing of hard plastic flange protective cover,

[0019] Figure 3 The utility model provides a first sealing plate structure explosion map of hard plastic flange protective cover,

[0020] Figure 4 The utility model provides a lower protective cover structure perspective drawing of hard plastic flange protective cover.

[0021] Legend explanation: 1, upper protective cover;2, lower protective cover;3, first sealing plate;31, through groove;32, screw;33, drive handle;34, threaded block;35, first support;36, support rod;37, second support;38, slope extruding block;39, limit sliding slot;310, limit sliding block;311, second sealing plate;312, connecting clamping block;313, extruding inclined slot;314, sealing groove;315, sealing pad;4, epoxy resin coating;5, inclined flow guide groove;51, flow guide pipe;52, collection bottle. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model, and apparently, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor belong to the range of the utility model protection.

[0023] For the convenience of understanding the utility model, the following will be described in relation to the utility model more fully, given several embodiments of the utility model, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be intervening elements, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be intervening elements, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, the terminology used in the specification of the utility model herein is only for the purpose of describing specific embodiments and is not intended to limit the utility model, the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0026] Embodiments

[0027] As Figures 1-4 shown, the utility model provides a technical scheme: a kind of hard plastic flange protective cover, including upper protective cover 1 and lower protective cover 2, it further includes fixed mechanism, upper protective cover 1 and lower protective cover 2 jointly constitute the package protective structure to flange, and fixed mechanism is used to realize the stable connection of both, ensure protective effect.

[0028] Upper protective cover 1 adopts hard plastic material, with certain strength and corrosion resistance, its outside is fixedly connected with two opposite first sealing plates 3 by welding or integrally formed, the upper end of first sealing plate 3 is provided with symmetrically distributed through slot 31 by mechanical processing, for connecting the insertion of clamping block 312, the upper end of first sealing plate 3 is rotatably connected with screw rod 32 by high-precision bearing, this connection mode can guarantee that screw rod 32 rotates smoothly, and can withstand certain axial and radial force, the upper end of screw rod 32 is fixedly connected with driving handle 33 by welding or key connection, to facilitate manual operation of operating personnel, the outside of screw rod 32 is connected with threaded block 34 by screwing, and screwing can realize the accurate movement of threaded block 34 on screw rod 32.

[0029] The two sides of the threaded block 34 are fixedly connected with the first supports 35 distributed symmetrically by welding or screw connection, the inner wall of the first support 35 is hinged with the supporting rod 36 through a pin shaft, the hinging mode can make the supporting rod 36 rotate flexibly around the pin shaft, one end of the supporting rod 36 is hinged with the second support 37 through a pin shaft, and the second support 37 is fixedly connected with the inclined extrusion block 38 on one side through welding or screw connection, the upper end of the first sealing plate 3 is provided with the limiting sliding grooves 39 distributed symmetrically through mechanical processing, the inner wall of the limiting sliding groove 39 is connected with the limiting sliding block 310 in a sliding fit mode, the upper end of the limiting sliding block 310 is fixed with the lower end of the inclined extrusion block 38 through welding or screw connection, and the cooperation of the limiting sliding groove 39 and the limiting sliding block 310 can limit and guide the movement of the inclined extrusion block 38.

[0030] The two sides of the upper protective cover 1 are provided with the sealing grooves 314 distributed symmetrically through mechanical processing. The inner wall of the sealing groove 314 is provided with the sealing gasket 315 in a bonding or clamping groove mode, the sealing gasket 315 is made of rubber or other materials with strong corrosion resistance, can effectively fill the gap and enhance the sealing performance.

[0031] The inner wall of the upper protective cover 1 is provided with the epoxy resin coating 4 through spraying or dipping process, the epoxy resin coating 4 has good corrosion resistance and can effectively resist the corrosion of corrosive liquid to the inner wall of the protective cover.

[0032] The lower protective cover 2 is also made of hard plastic material, and the outer part is fixedly connected with the second sealing plates 311 distributed symmetrically through welding or one-piece forming, the upper end of the second sealing plate 311 is in contact with the lower end of the first sealing plate 3, and plays a role in auxiliary sealing and connection, the upper end of the second sealing plate 311 is fixedly connected with the connecting clamping blocks 312 distributed symmetrically through welding or screw connection, the upper end of the connecting clamping block 312 is connected with the inner wall of the through groove 31 in a sliding plug-in mode and extends above the first sealing plate 3, and one side of the connecting clamping block 312 is provided with the extrusion inclined groove 313 through mechanical processing, and the inner wall of the extrusion inclined groove 313 is matched with one end of the inclined extrusion block 38 in a movable plug-in mode.

[0033] The two sides of the lower protective cover 2 are also provided with the sealing grooves 314 distributed symmetrically, and the sealing grooves 314 are also provided with the sealing gaskets 315, which cooperate with the sealing gaskets 315 of the upper protective cover 1 to enhance the overall sealing performance, and the inner wall of the lower protective cover 2 is provided with the inclined flow guide groove 5 through mechanical processing, the inner bottom wall of the inclined flow guide groove 5 is fixedly connected with the flow guide pipe 51 through welding or bonding, the lower end of the flow guide pipe 51 extends below the lower protective cover 2 and is connected with the collection bottle 52 in a threaded connection mode, and the collection bottle 52 is used for collecting corrosive liquid entering the protective cover.

[0034] The inner wall of the lower protective cover 2 is also provided with an epoxy coating 4, which, together with the epoxy coating 4 of the upper protective cover 1, resists corrosion of corrosive liquid.

[0035] The working process of the utility model is as follows:

[0036] Step one, the upper protective cover 1 and the lower protective cover 2 are combined together to wrap the flange, the connecting block 312 is inserted into the through slot 31, the driving handle 33 is rotated, the driving handle 33 drives the screw rod 32 to rotate on the first sealing plate 3 through the bearing, the screw rod 32 rotates to make the threaded block 34 move axially along the screw rod 32, the threaded block 34 drives the first support 35 to move, the first support 35 makes the supporting rod 36 rotate around the hinge point through the pin shaft, the supporting rod 36 drives the second support 37 and the inclined extrusion block 38 to move, the inclined extrusion block 38 slides in the limiting sliding groove 39, and at the same time, the inclined extrusion block 38 extrudes the extrusion inclined groove 313 on the connecting block 312, so that the connecting block 312 is stably fixed in the through slot 31, thereby tightly connecting the upper protective cover 1 and the lower protective cover 2.

[0037] Step two, the sealing gaskets 315 in the sealing grooves 314 are extruded to fill the gaps and prevent liquid from leaking out from the outside of the pipeline when the protective covers are connected, the inclined extrusion block 38 and the connecting block 312 are extruded to further enhance the sealing performance of the connecting part, and the corrosive liquid is prevented from leaking, when corrosive liquid enters the protective cover, the epoxy coating 4 on the inner wall can resist liquid corrosion, the inclined flow guide groove 5 guides the liquid to flow to the flow guide pipe 51, and finally flows into the collection bottle 52, so that the liquid is prevented from remaining in the protective cover to corrode the internal structure, when disassembling and maintaining, the driving handle 33 is reversely rotated to separate the inclined extrusion block 38 from the connecting block 312, so that the upper protective cover 1 and the lower protective cover 2 can be easily separated, and the disassembly is completed.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rigid plastic flange protective cover, comprising an upper protective cover (1) and a lower protective cover (2), characterized in that: The lower end of the upper protective cover (1) is in contact with the upper end of the lower protective cover (2). The upper protective cover (1) is provided with a fixing mechanism, and the fixing mechanism includes a first sealing plate (3). The two first sealing plates (3) are symmetrically distributed on opposite surfaces and are fixedly connected to the outside of the upper protective cover (1). The upper end of the first sealing plate (3) is provided with symmetrically distributed through grooves (31). The upper end of the first sealing plate (3) is rotatably connected to a screw (32) through a bearing. The upper end of the screw (32) is fixedly connected to a drive handle (33). The screw (32) is threadedly connected to a threaded block (34).

2. The rigid plastic flange protective cover according to claim 1, characterized in that: The threaded block (34) is fixedly connected to two sides of a first support (35) that is symmetrically distributed. The inner wall of the first support (35) is hinged to a support rod (36) by a pin. One end of the support rod (36) is hinged to a second support (37) by a pin.

3. A rigid plastic flange protective cover according to claim 2, characterized in that: The second support (37) is fixedly connected to one side of an inclined extrusion block (38), and the upper end of the first sealing plate (3) is provided with symmetrically distributed limiting grooves (39).

4. A rigid plastic flange protective cover according to claim 3, characterized in that: The inner wall of the limiting slide groove (39) is slidably connected to the limiting slider (310), the upper end of the limiting slider (310) is fixedly connected to the lower end of the inclined extrusion block (38), and the lower protective cover (2) is fixedly connected to the outside of the second sealing plate (311) which is symmetrically distributed. The upper end of the second sealing plate (311) is in contact with the lower end of the first sealing plate (3).

5. A rigid plastic flange protective cover according to claim 4, characterized in that: The upper end of the second sealing plate (311) is fixedly connected with symmetrically distributed connecting blocks (312). The upper end of the connecting blocks (312) slides into the inner wall of the through groove (31) and extends above the first sealing plate (3).

6. A rigid plastic flange protective cover according to claim 5, characterized in that: The connecting block (312) has an extrusion groove (313) on one side. The inner wall of the extrusion groove (313) is movably inserted into one end of the inclined extrusion block (38). The upper protective cover (1) and the lower protective cover (2) have symmetrically distributed sealing grooves (314) on both sides. The inner wall of the sealing groove (314) is provided with a sealing gasket (315).

7. A rigid plastic flange protective cover according to claim 1, characterized in that: The inner walls of the upper protective cover (1) and the lower protective cover (2) are both provided with epoxy resin coating (4). The inner wall of the lower protective cover (2) is provided with an inclined guide groove (5). The bottom wall of the inclined guide groove (5) is fixedly connected to a guide pipe (51). The lower end of the guide pipe (51) extends to the bottom of the lower protective cover (2) and is threadedly connected to a collection bottle (52).

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