Safety valve

Abstract

The utility model relates to the technical field of valve installation, in particular to a safety valve which facilitates installation of the valve and effectively improves safety, a flange is fixedly arranged at the connecting end of a valve body, the valve body is connected with a rotatable sleeve, a connecting frame is fixedly arranged on the sleeve, a connecting assembly is fixedly arranged on the connecting frame, and the connecting assembly is fixedly connected with the flange. The connecting assembly comprises a baffle and blocking edges fixedly arranged on the front portion and the rear portion of the baffle, the two flanges can be contained between the front blocking edge and the rear blocking edge, the baffle limits the outer walls of the flanges, the blocking edges prevent the two flanges from being separated so as to achieve butt joint of the two flanges, and the baffle blocks a gap between the two flanges. The inner diameter of the baffle is matched with the outer diameter of the flange, the unfolding angle alpha of the two ends of the baffle is smaller than or equal to 180 degrees, a through groove is formed in the connecting frame and used for a bolt or a nut to penetrate through, the valve body comprises a valve deck, a valve rod and a hand wheel, and damping force exists between the sleeve and the valve body.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve installation technical field, concretely is a safe valve. BACKGROUND

[0002] It is known that the valve is the control part in fluid delivery system, has the functions such as cut-off, regulation, flow guide, prevent backflow, pressure stabilization, shunt or overflow pressure relief, and is used for the valve of fluid control system.

[0003] The existing valve exposes two prominent problems in the valve installation link, seriously affects construction efficiency, safety and operation convenience:

[0004] 1, the valve installation at present stage relies on manpower or with the aid of external auxiliary object, and the alignment process of valve and pipeline is realized with difficulty. When operating manually, the construction personnel needs to spend a lot of physical strength to move and adjust the angle and position of the valve, and the labor intensity is great. Even if the auxiliary object (such as crowbar, rope, etc.) is used to assist, the operation process is still complicated, and repeated attempts and fine adjustment are needed to reach the ideal alignment state. This not only slows down the overall installation progress, but also further aggravates the operation difficulty in narrow space and high-altitude operation scene, seriously restricts the construction efficiency, increases the construction cost and the risk of construction period delay, and is not conducive to the efficient and orderly promotion of the project.

[0005] 2, when the valve connecting end and the pipeline are connected, the gap will inevitably appear. Although the gap seems to be small, it actually hides serious safety risks. During the subsequent connection process (such as locking bolt and bolt), the gap will be reduced during the connection process, and the hand is easy to accidentally insert into the gap, encounter "hand cover" condition, which may cause different degrees of personal injury such as pinch and fracture.

[0006] According to the multiple defects of the above-mentioned existing valve installation technology, it is urgent to improve. CONTENT OF THE UTILITY MODEL

[0007] (I) technical problem solved

[0008] In view of the deficiencies of the prior art, the utility model provides a safe valve, which is convenient for installing the valve and effectively improves the safety.

[0009] (II) technical scheme

[0010] In order to achieve the above object, the utility model provides the following technical scheme: A safe valve, including the valve body, the flange is fixed on the connecting end of valve body, the rotatable sleeve is connected to the valve body, the connecting frame is fixedly arranged on the sleeve, the connecting assembly is fixedly arranged on the connecting frame, the connecting assembly includes the baffle and the blocking edge fixedly arranged at the front and rear of baffle, the two flanges can be accommodated between the front and rear blocking edges, the baffle limits the outer wall of flange, the blocking edge prevents the two flanges from separating, so as to realize the butt joint of the two flanges, and the baffle blocks the gap between the two flanges.

[0011] Further, the inner diameter of the baffle matches the outer diameter of the flange.

[0012] Further, the unfolding angle of the baffle at both ends is α≤180°.

[0013] Further, a through groove is formed in the connecting frame for the bolt or nut to pass through.

[0014] Further, the valve body includes a valve cover, a valve stem and a hand wheel.

[0015] Further, there is a damping force between the sleeve and the valve body.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a safe valve, which has the following beneficial effects:

[0018] The safe valve is provided with the connecting assembly, the connecting assembly includes the baffle and the blocking edge fixedly arranged at the front and rear of baffle, and the blocking edge fixed at both ends of the baffle provides a natural "positioning groove" for the two flanges to be connected. When installing, the flanges can be placed between the two blocking edges, and the precise alignment of the valve and the pipeline in the horizontal and vertical directions can be realized quickly and accurately by means of the limiting and guiding of the blocking edge and the baffle, so that the ideal connection state is achieved in one step without the need for auxiliary objects, which greatly reduces the installation time, simplifies the construction process, significantly improves the overall installation efficiency, and the time cost saving advantage is more prominent especially in batch installation operation.

[0019] The baffle blocks the gap between the two flanges, completely eliminates the risk of accidental insertion of hands between the gap, effectively eliminates the problem of clamping the hands of the operator when connecting the two flanges, improves the safety, greatly improves the safety of the working environment, effectively reduces the incidence of work accidents, and protects the personal safety of the construction personnel. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0021] Figure 2 is a front view structural schematic diagram of the utility model;

[0022] Figure 3 is a three-dimensional structural schematic diagram of the connecting assembly of the utility model;

[0023] Figure 4 is a bottom view structural schematic diagram of the connecting assembly of the utility model;

[0024] Figure 5 is a side view structural schematic diagram of the connecting assembly of the utility model.

[0025] In the drawing: 1, valve body; 2, valve cover; 3, valve stem; 4, hand wheel; 5, through slot; 6, sleeve; 7, connecting frame; 8, baffle; 9, baffle edge; 10, pipeline; 11, flange one; 12, flange two DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5 The utility model discloses a safe valve, which comprises a valve body 1 connected with a pipeline 10, the valve body 1 comprises a valve cover 2, a valve stem 3 and a hand wheel 4, a flange two 12 is arranged on the connecting end of the pipeline 10, a flange one 11 is fixedly arranged on the connecting end of the valve body 1, a sleeve 6 is connected to the valve body 1, a connecting frame 7 is fixedly arranged on the sleeve 6, a connecting assembly is fixedly arranged on the connecting frame 7, the connecting assembly comprises a baffle 8 and baffle edges 9 fixedly arranged on the front and rear parts of the baffle 8, two flanges one 11 and flanges two 12 can be accommodated between the front and rear baffle edges 9, the inner diameter of the baffle 8 matches the outer diameter of the flange, the baffle 8 is used for limiting the outside of the flange, the baffle edges 9 prevent the two flanges from separating, so as to realize butt joint of the two flanges, and the sleeve 6 can be rotated to adjust the position of the baffle 8, the flanges can be placed between the two baffle edges 9, the baffle edges 9 and the baffle 8 are matched to limit and guide, and the valve and the pipeline 10 can be quickly and accurately aligned in the horizontal and vertical directions. The inner diameter of the baffle 8 matches the outer diameter of the flange, further, as shown in Figure 5 the drawing, the expansion angle α of both ends of the baffle 8 is less than or equal to 180 degrees, if the angle α is too large, the flange cannot be installed between the two baffle edges 9.

[0028] And the baffle 8 blocks the gap between the two flanges, for example, when connecting the left side (connecting the bolts and nuts), turn the baffle 8 to the left side of the flange, and the baffle 8 blocks the gap between the two flanges, which can effectively prevent the risk of accidental insertion of hands between the gap during operation, and can effectively prevent the problem of clamping the hands of the operator when connecting the two flanges.

[0029] In order to facilitate operation, a through slot 5 is formed on the connecting frame 7 for the bolts or nuts to pass through, which facilitates the connection of the flanges.

[0030] Further, the sleeve 6 and the valve body 1 have damping force, the baffle 8 can be rotated and positioned for operation.

[0031] In summary, the safe valve, when in use, picks up the valve body 1, connects the side with the connecting assembly to the end of the pipeline 10 to be connected, and makes the flange two 12 on the pipeline 10 clamped between the two stoppers 9, so that the stoppers 9 and the baffle 8 cooperate to limit and guide, quickly and accurately realize the precise alignment of the flange one 11 and the flange two 12 in the horizontal and vertical directions, after the flange one 11 and the flange two 12 are aligned, first turn the baffle 8 to the position of the bolts and nuts to be connected, and then install the bolts and nuts at the position of the through slot 5, and turn the baffle 8 when installing other bolts and nuts, so that the baffle 8 plays a protective role.

[0032] 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 these 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 safety valve comprising a valve body (1), characterised in that: The flange is fixed on the connecting end of the valve body (1), the rotatable sleeve (6) is connected to the valve body (1), the connecting frame (7) is fixedly arranged on the sleeve (6), the connecting assembly is fixedly arranged on the connecting frame (7), the connecting assembly comprises the baffle (8) and the blocking edges (9) fixedly arranged at the front and rear of the baffle (8), the two flanges can be accommodated between the front and rear blocking edges (9), the outer wall of the flange is limited by the baffle (8), the two flanges are prevented from being separated by the blocking edges (9), the butt joint of the two flanges is realized, and the gap between the two flanges is blocked by the baffle (8).

2. A safety valve as claimed in claim 1, wherein: The inner diameter of the baffle (8) matches the outer diameter of the flange.

3. A safety valve as claimed in claim 2, wherein: The unfolding angle of the two ends of the baffle (8) is less than or equal to 180 degrees.

4. A safety valve according to any one of claims 1 to 3, wherein: The through slot (5) is arranged on the connecting frame (7) and used for the bolt or nut to pass through.

5. The safety valve of claim 1, wherein: The valve body (1) comprises the valve cover (2), the valve rod (3) and the hand wheel (4).

6. A safety valve according to claim 5, wherein: There is damping force between the sleeve (6) and the valve body (1).

Images