Blind plate lock

Abstract

The utility model relates to a blind plate lock which comprises an adjusting rod, a U-shaped inserting rod lock, a first limiting ring and a second limiting ring. A fixed seat is fixedly arranged on one side of the adjusting rod, and an adjusting seat is slidably arranged on the other side; the side face, perpendicular to the sliding direction of the adjusting base, of the adjusting rod is provided with a plurality of through lock rod holes. The hole diameter of each lock rod hole is matched with the shaft diameter of an insertion rod of the U-shaped insertion rod lock, and the adjacent lock rod holes are partially overlapped. An insertion rod of the U-shaped insertion rod lock is embedded into the lock rod hole; the first limiting ring and the second limiting ring are each composed of a U-shaped sliding ring and an O-shaped nesting ring. The fixed seat comprises a fixed seat body; the sliding ring of the first limiting ring is arranged outside the fixing base body in a sleeving mode. The left side of the fixing seat body is provided with a fixing seat first blocking piece which blocks the first limiting ring from the left side. The adjusting seat comprises an adjusting seat body; the sliding ring of the second limiting ring is arranged outside the adjusting seat body in a sleeving mode. The right side of the adjusting seat body is provided with an adjusting seat second blocking piece which blocks the second limiting ring from the right side. The utility model has the advantages of easy manufacture, strong versatility and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical industry, in particular to a blind plate lock. Background Art

[0002] In the fields of chemical industry, petroleum refining, etc., blind plates are widely used in pipeline maintenance and emergency repair. Usually, the blind plate consists of a blind plate body and a handle. During pipeline maintenance, the blind plate is installed between the pipeline flanges, and the blind plate body blocks the flange hole, thereby blocking the maintenance section pipeline without affecting the normal operation of other pipelines, so as to achieve maintenance without stopping the operation. During emergency repair of pipelines, the blind plate is also installed between the flanges of the leaking pipeline to quickly block the leaking pipeline and reduce losses.

[0003] After the pipeline inspection and repair is completed, the installed blind plate needs to be removed to resume normal operation. However, in actual operation, the blind plate is often removed by mistake or maliciously, resulting in pipeline leakage and accident losses.

[0004] In order to solve this problem, blind plate locks came into being. By installing blind plate locks on flanges, accidental or malicious removal of blind plates can be restricted, thus avoiding accidents.

[0005] However, in actual applications, there are different types of pipelines (such as main pipelines and branch pipelines) and different pressures and thicknesses, and the corresponding pipeline flange sizes and models are also different. In order to adapt to flanges of different sizes and models, manufacturers need to produce blind plate locks of various specifications, resulting in a wide variety of sizes and models of blind plate locks, which brings certain troubles to production and use. Utility Model Content

[0006] To this end, the utility model provides a blind plate lock, which mainly solves the technical problem that the blind plate locks in the prior art cannot adapt to flanges of different sizes and specifications, resulting in a wide variety of types and causing certain troubles in production and use.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A blind plate lock comprises an adjusting rod, a U-shaped plug rod lock, a first limiting ring and a second limiting ring; a fixing seat is fixedly arranged on one side of the adjusting rod, and an adjusting seat is slidably arranged on the other side; a plurality of through locking rod holes are provided on the side of the adjusting rod perpendicular to the sliding direction of the adjusting seat; the aperture of the locking rod hole is adapted to the shaft diameter of the plug rod of the U-shaped plug rod lock, and adjacent locking rod holes partially overlap; the plug rod of the U-shaped plug rod lock is embedded in the locking rod hole; the first limiting ring and the second limiting ring are both composed of a U-shaped sliding ring and an O-shaped nesting ring; the fixing seat comprises a fixing seat body; the sliding ring of the first limiting ring is sleeved outside the fixing seat body; a fixing seat first blocking piece is provided on the left side of the fixing seat body for blocking the first limiting ring from the left; the adjusting seat comprises an adjusting seat body; the sliding ring of the second limiting ring is sleeved outside the adjusting seat body; a fixing seat second blocking piece is provided on the right side of the adjusting seat body for blocking the second limiting ring from the right.

[0009] Preferably, a second fixing seat blocking piece is provided on the right side of the fixing seat body, for blocking the first limiting ring from the right.

[0010] Preferably, a first blocking piece of the adjustment seat is provided on the left side of the adjustment seat body, for blocking the second limiting ring from the left.

[0011] Preferably, the bottoms of the first baffle of the fixing seat, the second baffle of the fixing seat, the first baffle of the adjusting seat, and the second baffle of the adjusting seat are all in an arc shape.

[0012] Preferably, the handle of the blind plate is provided with a through blind plate hole; the adjusting rod can movably pass through the blind plate hole.

[0013] The utility model has at least the following beneficial effects:

[0014] The utility model is provided with an adjusting rod, a U-shaped plug rod lock, a first limiting ring and a second limiting ring; a fixing seat is fixedly arranged on one side of the adjusting rod, and an adjusting seat is slidably arranged on the other side; a locking rod hole is provided on the adjusting rod, and the plug rod of the U-shaped plug rod lock is embedded in the locking rod hole; the first limiting ring and the second limiting ring are both composed of a U-shaped sliding ring and an O-shaped nesting ring; the fixing seat includes a fixing seat body; the sliding ring of the first limiting ring is sleeved outside the fixing seat body, and a first fixing seat baffle is arranged on the left side of the fixing seat body; the adjusting seat includes an adjusting seat body; the sliding ring of the second limiting ring is sleeved outside the adjusting seat body, and a second fixing seat baffle is arranged on the right side of the adjusting seat body. When in use, the nesting ring of the first limiting ring and the nesting ring of the second limiting ring are respectively sleeved outside the locking nut of the pipeline connection flange, and the first fixing seat baffle and the second fixing seat baffle are both located above the locking nut of the flange. After adjusting the position, the plug rod of the U-shaped plug rod lock is inserted into the locking rod hole close to the position of the second fixing seat baffle, and then the U-shaped plug rod lock is locked, thereby preventing the removal of the blind plate. Because the position of the adjusting seat on the adjusting rod is adjustable, the distance between the fixed seat and the adjusting seat is adjustable, and the position of the fixed seat body and the adjusting seat body can also be adjusted in the sliding ring, so that the distance between the fixed seat body and the bottom of the first limiting ring, and the distance between the adjusting seat body and the bottom of the second limiting ring are adjustable, so that the blind plate lock of the present application can adapt to flanges of different sizes and specifications, greatly improving the versatility, and bringing convenience to production and use.

[0015] It can be seen that the blind plate lock of the utility model has the advantages of simple structure, easy manufacturing, low cost, strong versatility, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly explain the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the present invention. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 This is a structural schematic diagram of a blind plate lock of the utility model;

[0019] Figure 2 This is a front view of a blind plate lock of the utility model;

[0020] Figure 3 It is a structural schematic diagram of an adjustment rod of a blind plate lock of the utility model;

[0021] Figure 4 It is a structural schematic diagram of a first limiting ring and a second limiting ring of a blind plate lock of the utility model;

[0022] Figure 5 This is the usage state of a blind plate lock of the utility model Figure 1 ;

[0023] Figure 6 This is the usage state of a blind plate lock of the utility model Figure 2 ;

[0024] Figure 7 This utility model is an accessory of a blind plate lock Figure 6 A partial enlarged view of part A;

[0025] Figure 8 This is the usage state of a blind plate lock of the utility model Figure 3 ;

[0026] Fig. 9 This utility model is an accessory of a blind plate lock Figure 8 A partial enlarged view of part B;

[0027] Description of reference numerals:

[0028] 1. Adjustment rod; 101. Lock rod hole; 2. Fixed seat; 201. First baffle of fixed seat; 202. Fixed seat body; 203. Second baffle of fixed seat; 3. Adjustment seat; 301. First baffle of adjustment seat; 302. Adjustment seat body; 303. Second baffle of adjustment seat; 4. First limiting ring; 5. Second limiting ring; 6. U-shaped plug rod lock; 7. Sliding ring; 8. Nesting ring; 9. Locking nut; 10. Blind plate. DETAILED DESCRIPTION

[0029] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0030] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0031] The terms such as "upper", "lower", "left", "right", "middle", etc. used in this application are usually used to facilitate intuitive understanding by comparing with the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product. Without departing from the technical concept disclosed in this application, changes in these relative positional relationships should also be regarded as the scope of this application.

[0032] A blind plate lock of the utility model, such as Figures 1 to 3 As shown, an adjusting rod 1, a U-shaped plug rod lock 6, a first limiting ring 4 and a second limiting ring 5 are provided. A fixed seat 2 is fixedly provided on one side of the adjusting rod 1, and an adjusting seat 3 is slidably provided on the other side. The sliding setting of the adjusting seat 3 can be realized by opening a hole on the sliding seat 3 that is adapted to the cross-sectional size of the adjusting rod 1. This is a prior art well known to those skilled in the art and will not be described in detail. A plurality of through locking rod holes 101 are provided on the side of the adjusting rod 1 that is perpendicular to the sliding direction of the adjusting seat 3. The aperture of the locking rod hole 101 is adapted to the shaft diameter of the plug rod of the U-shaped plug rod lock 6, and adjacent locking rod holes 101 partially overlap. The plug rod of the U-shaped plug rod lock 6 is embedded in the locking rod hole 101. In this way, the U-shaped plug rod lock 6 can be locked on any length of the adjusting rod 1. The first limiting ring 4 and the second limiting ring 5 are both composed of a U-shaped sliding ring 7 and an O-shaped nested ring 8. The fixed seat 2 includes a fixed seat body 202. The sliding ring 7 of the first limiting ring 4 is sleeved outside the fixed seat body 202. The fixed seat body 202 can move up and down in the first limiting ring 4. A fixed seat first baffle 201 is provided on the left side of the fixed seat body 202 for blocking the first limiting ring 4 from the left; the adjusting seat 3 includes an adjusting seat body 302. The sliding ring 7 of the second limiting ring 5 is sleeved outside the adjusting seat body 302. An adjusting seat second baffle 303 is provided on the right side of the adjusting seat body 302 for blocking the second limiting ring 5 from the right. When in use, the nested ring 8 of the first limiting ring 4 and the nested ring 8 of the second limiting ring 5 are respectively placed outside the locking nut 9 of the pipeline connection flange, the first baffle 201 of the fixed seat and the second baffle 303 of the adjusting seat are both located above the locking nut of the flange, and after adjusting the position, the plug rod of the U-shaped plug rod lock 6 is inserted into the lock rod hole 101 near the position of the second baffle 303 of the adjusting seat, and then the U-shaped plug rod lock 6 is locked, thereby preventing the removal of the blind plate 10. Because the position of the adjusting seat 3 on the adjusting rod 1 is adjustable, the distance between the fixed seat 2 and the adjusting seat 3 is adjustable, and the fixed seat body 202 and the adjusting seat body 302 can also be adjusted in the sliding ring 7, so that the distance between the fixed seat body 202 and the bottom of the first limiting ring 4, and the distance between the adjusting seat body 302 and the bottom of the second limiting ring 5 are adjustable, so that the blind plate lock of the present application can adapt to flanges of different sizes and specifications, and the versatility is greatly improved, which brings convenience to production and use.

[0033] Preferably, in order to enhance the stability of the first limiting ring 4 and improve the stability of the blind plate lock when in use, a second fixing seat blocking piece 203 is provided on the right side of the fixing seat body 202 for blocking the first limiting ring 4 from the right.

[0034] Preferably, in order to enhance the stability of the second limiting ring 5 and improve the stability of the blind plate lock when in use, an adjustment seat first blocking piece 301 is provided on the left side of the adjustment seat body 302 for blocking the second limiting ring 5 from the left.

[0035] Preferably, in order to further enhance the stability of the blind plate lock of the present application, the bottoms of the first baffle 201 of the fixed seat, the second baffle 203 of the fixed seat, the first baffle 301 of the adjustment seat and the second baffle 303 of the adjustment seat are all arc-shaped so as to match the shape of the locking nut 9.

[0036] Preferably, in order to better lock the blind plate, a through blind plate hole is provided in the handle of the blind plate, and when in use, the adjusting rod 1 is passed through the blind plate hole.

[0037] Figure 5 The blind plate handle has a blind plate hole. Figure 1 , this state is the state diagram when the flange model is relatively small;

[0038] Figure 6 , Figure 7 The blind plate handle has a blind plate hole. Figure 2 , this state is the state diagram when the flange model is relatively large;

[0039] Figure 8 , Fig. 9 The blind plate handle is not provided with a blind plate hole. Figure 3 .

[0040] The above is a relatively specific and detailed description of the present application through general description and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; however, as long as they do not deviate from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. A blind plate lock, characterized in that: The invention comprises an adjusting rod (1), a U-shaped plug rod lock (6), a first limiting ring (4) and a second limiting ring (5); a fixed seat (2) is fixedly arranged on one side of the adjusting rod (1), and an adjusting seat (3) is slidably arranged on the other side; a plurality of through locking rod holes (101) are provided on the side of the adjusting rod (1) perpendicular to the sliding direction of the adjusting seat (3); the hole diameter of the locking rod hole (101) is adapted to the shaft diameter of the plug rod of the U-shaped plug rod lock (6), and adjacent locking rod holes (101) partially overlap; the plug rod of the U-shaped plug rod lock (6) is embedded in the locking rod hole (101); the first limiting ring (4) and the second limiting ring (5) are both composed of a U-shaped sliding ring (7) and The fixing seat (2) is composed of an O-shaped nested ring (8); the fixing seat (2) comprises a fixing seat body (202); the sliding ring (7) of the first limiting ring (4) is sleeved outside the fixing seat body (202); a fixing seat first blocking piece (201) is provided on the left side of the fixing seat body (202) for blocking the first limiting ring (4) from the left; the adjusting seat (3) comprises an adjusting seat body (302); the sliding ring (7) of the second limiting ring (5) is sleeved outside the adjusting seat body (302); and an adjusting seat second blocking piece (303) is provided on the right side of the adjusting seat body (302) for blocking the second limiting ring (5) from the right.

2. A blind plate lock according to claim 1, characterized in that: A second fixing seat blocking piece (203) is provided on the right side of the fixing seat body (202) for blocking the first limiting ring (4) from the right.

3. A blind plate lock according to claim 2, characterized in that: A first adjusting seat blocking piece (301) is provided on the left side of the adjusting seat body (302) for blocking the second limiting ring (5) from the left.

4. A blind plate lock according to claim 3, characterized in that: The bottoms of the first baffle (201) of the fixing seat, the second baffle (203) of the fixing seat, the first baffle (301) of the adjusting seat, and the second baffle (303) of the adjusting seat are all in an arc shape.

5. A blind plate lock according to any one of claims 1 to 4, characterized in that: The handle of the blind plate is provided with a through blind plate hole; the adjusting rod (1) can movably pass through the blind plate hole.

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