Blind plate
By designing the handle, guide part and positioning hole structures on the blind plate, the blind plate is quickly centered and stable fixing, solving the problems of difficulty in installing and easy displacement of the existing blind plates, and improving installation efficiency and stability.
Patent Information
- Application Number
- CN202421262551.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing blind boards are difficult to quickly center when installed, resulting in a long installation time and are prone to displacement due to human or unexpected reasons, causing leakage problems.
A blind plate is designed, and a handle is provided on the side of the blind plate body, and a guide part is provided on the side away from the handle. A through positioning hole is opened in the joint area between the handle and the blind plate body, and a communication guide groove is opened at the bottom of the guide part. By inserting the guide slot into the flange bolt, rotating the blind plate body to align the positioning hole with the flange bolt hole, achieving rapid centering and preventing the blind plate from moving through the flange bolt limit.
The blind plate is quickly installed and stable and fixed, which reduces installation time, avoids leakage problems caused by displacement, and improves the stability and use efficiency of the blind plate.
Smart Images
Figure CN222479834U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of petrochemical industry, in particular to a blind plate. Background Art
[0002] In the fields of chemical industry, petroleum refining, etc., blind plates are widely used in pipeline inspection and emergency repair. Usually, the blind plate consists of a blind plate body 1' and a handle 2', such as Figure 1 As shown. 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 that maintenance can be carried out without stopping the operation. During emergency repair of pipelines, the blind plate is also installed between the leaking pipeline flanges to quickly block the leaking pipeline and reduce losses.
[0003] However, since the blind plate is installed between the pipe flanges and the blind plate body 1' is limited by the flange mounting bolts, the size of the blind plate body cannot be too large. This requires centering adjustment when installing the blind plate so that the blind plate body 1' is as centered as possible inside the flange. However, this adjustment often relies on the operator's feeling, resulting in a long installation time, and it often fails to be completely centered, resulting in an inability to effectively block the flange hole, causing leakage problems. In this case, the blind plate must be reinstalled, delaying the construction period. In addition, when plugging, the center position of the blind plate cannot be quickly determined, thereby prolonging the time of the accident leakage and increasing the loss.
[0004] At the same time, because the blind plate is currently clamped between the pipeline flanges, the blind plate body 1' is prone to malicious or accidental displacement, that is, malicious human manipulation of the handle 2' or unintentional touching of the handle 2' by vehicles or workers on the workplace during walking may cause the blind plate body 1' to shift and cause leakage. Utility Model Content
[0005] To this end, the utility model provides a blind plate, which mainly solves the technical problems of the prior art that the blind plate is difficult to install in the center, resulting in a long installation time, and has no effective fixing means, and is prone to displacement.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A blind plate comprises a blind plate body; a handle is provided on the side of the blind plate body; a guide portion is provided on the side of the blind plate body away from the handle; a through positioning hole is provided in the junction area between the handle and the blind plate body; and a communicating guide groove is provided at the bottom of the guide portion.
[0008] Preferably, the positioning hole is a circular hole; the diameter of the positioning hole, the width of the guide groove and the shaft diameter of the flange bolt are matched.
[0009] Preferably, the positioning hole is a waist-shaped hole; the diameter of the positioning hole, the width of the guide groove and the shaft diameter of the flange bolt are matched.
[0010] Preferably, a through arc-shaped positioning hole expansion groove is provided at the bottom of the positioning hole, or / and a through arc-shaped guide groove expansion groove is provided at the top of the inner wall of the guide groove; the arc-shaped positioning hole expansion groove has an arc-shaped circular diameter that is smaller than the aperture of the positioning hole; the arc-shaped guide groove expansion groove has an arc-shaped circular diameter that is smaller than the width of the guide groove.
[0011] Preferably, the handle is provided with a through hanging hole; the diameter of the hanging hole is adapted to the axial diameter of the hanging rod of the placement rack, so as to hang the blind plate on the hanging rod.
[0012] Preferably, the wall of the hanging hole is provided with a first limiting groove and a second limiting groove along its axial direction respectively; the first limiting groove is adapted to the first limiting column of the hanging rod, and the first limiting column can be embedded in the first limiting groove; the second limiting groove is adapted to the second limiting column of the hanging rod, and the second limiting column can be embedded in the second limiting groove; the angle a between the first limiting groove and the second limiting groove is consistent with the angle c between the first limiting column and the second limiting column of the hanging rod on which the blind plate is placed.
[0013] Preferably, a hanging rod guide groove is provided at the top of the hanging hole wall along its axial direction; the hanging rod guide groove is adapted to a hanging rod guide post of the hanging rod, and the hanging rod guide post of the hanging rod can be embedded in the hanging rod guide groove.
[0014] Preferably, the handle is provided with a label.
[0015] Preferably, the handle is provided with a label sinking groove; the label is arranged on the bottom wall of the label sinking groove.
[0016] The utility model has at least the following beneficial effects:
[0017] It is provided with a blind plate body, a handle is provided on one side of the blind plate body, a guide part is provided on the other side, a through positioning hole is provided in the joint area between the handle and the blind plate body, and a guide groove is provided at the bottom of the guide part. During installation, the guide groove is inserted into the flange bolt on one side of the flange, and with this as a fulcrum, the blind plate body is rotated to align the positioning hole with the flange bolt hole on the other side, thereby achieving rapid centering; then the flange bolts are tightened, because the flange bolts on one side pass through the positioning hole and the flange bolts on the other side are in the guide groove, the blind plate is limited by the flange bolts and is not easy to move, thereby avoiding leakage caused by malicious or accidental movement.
[0018] It can be seen that the blind plate of the utility model has the advantages of simple structure, convenient installation, saving installation time, strong stability, and not easy to shift. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] 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.
[0020] 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.
[0021] Figure 1 It is a schematic diagram of a blind plate in the prior art;
[0022] Figure 2 This is a structural schematic diagram of a blind plate according to a first embodiment of the utility model;
[0023] Figure 3 It is a front view of a preferred embodiment of a blind plate of the utility model;
[0024] Figure 4 It is a front view of a preferred embodiment of a blind plate of the utility model;
[0025] Figure 5 It is a front view of a preferred embodiment of a blind plate of the utility model;
[0026] Figure 6 It is a front view of a preferred embodiment of a blind plate of the utility model;
[0027] Figure 7 This is a schematic diagram of a blind plate in use according to the utility model;
[0028] Figure 8 This is a structural schematic diagram of a blind plate placement rack of the utility model;
[0029] Fig. 9 It is a structural schematic diagram of a hanging rod of a blind plate of the utility model;
[0030] Fig.10 A top view of a hanging rod of a blind plate of the utility model;
[0031] Fig.11 This utility model is a blind plate attachment Fig.10 AA section view;
[0032] Description of reference numerals:
[0033] 1. Blind plate body; 2. Guide part; 3. Handle; 4. Guide groove; 401. Guide groove extension groove; 5. Positioning hole; 501. Positioning hole extension groove; 6. Hanging hole; 601. First limiting groove; 602. Second limiting groove; 603. Hanging rod guide groove; 7. Label sink groove; 8. Bracket; 9. Support plate; 10. Hanging rod; 1001. Hanging rod body; 1002. Hanging rod guide column; 1003. First limiting column; 1004. Second limiting column; 11. Pipe flange. DETAILED DESCRIPTION
[0034] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.
[0035] 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.).
[0036] 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.
[0037] A blind plate of the utility model, such as Figure 2 As shown, a blind plate body 1 is provided, a handle 3 is provided on the side of the blind plate body 1, a guide portion 2 is provided on the side of the blind plate body 1 away from the handle 3, a through positioning hole 5 is provided in the joint area between the handle 3 and the blind plate body 1, and a communicating guide groove 4 is provided at the bottom of the guide portion 2. When installing, as shown in FIG. Figure 7 As shown, insert the guide groove 4 into the flange bolt on one side of the flange, use this as a fulcrum, rotate the blind plate body 1, align the positioning hole 5 with the flange bolt hole on the other side, quickly realize the centering of the blind plate body 1, tighten the flange bolts, because the flange bolts on one side pass through the positioning hole 5, and the flange bolts on the other side are in the guide groove 4, the blind plate is limited by the flange bolts and is not easy to move, avoiding leakage caused by malicious or accidental movement.
[0038] In a preferred embodiment, Figure 3 As shown, in order to enhance the stable fixation of the flange bolt to the blind plate of the present application, the positioning hole 5 is designed as a round hole, and the hole diameter of the positioning hole 5, the width of the guide groove 4 and the axial diameter of the flange bolt are adapted.
[0039] The positioning hole 5 in the above embodiment is a round hole. When installing the flange bolt, it must be exactly aligned with the positioning hole 5, which increases the difficulty of installing the flange bolt. Therefore, in a preferred embodiment, as shown in FIG. Figure 5 As shown, the positioning hole 5 is designed as a waist-shaped hole, and the aperture of the positioning hole 5, the width of the guide groove 4 and the axial diameter of the flange bolt are adapted. The design of the waist-shaped hole facilitates the installation of the flange bolt and also enhances the fixation of the flange bolt to the blind plate of the present application.
[0040] In the fields of chemical industry, petroleum refining, etc., pipelines are divided into main pipelines, branch pipelines, etc., and the pressure and thickness of the pipelines are different. The corresponding pipeline flange sizes and models are different, and the thickness of the flange bolts is also different. Therefore, blind plates of different sizes are required. In order to enhance the adaptability of the blind plate, a blind plate can adapt to as many different types of pipeline flanges as possible. In a preferred embodiment, as Figure 4 As shown, a through arc-shaped positioning hole expansion groove 501 is provided at the bottom of the positioning hole 5, and the arc-shaped positioning hole expansion groove 501 has an arc diameter smaller than the aperture of the positioning hole 5; or Figure 5 As shown, a through arc-shaped guide groove expansion groove 401 is provided on the top of the inner wall of the guide groove 4, and the arc-shaped guide groove expansion groove 401 has an arc diameter smaller than the width of the guide groove 4, so that the flange bolts of the coarse and fine pipe flanges can be adapted, and one plate can be used for two purposes; or as Figure 6 As shown, a through arc-shaped positioning hole expansion groove 501 is opened at the bottom of the positioning hole 5, and the arc-shaped positioning hole expansion groove 501 has an arc diameter smaller than the aperture of the positioning hole 5. At the same time, a through arc-shaped guide groove expansion groove 401 is opened at the top of the inner wall of the guide groove 4, and the arc-shaped guide groove expansion groove 401 has an arc diameter smaller than the width of the guide groove 4. In this way, more types of pipe flanges can be accommodated.
[0041] In order to cope with the different sizes and models of pipeline flanges, blind plates of different sizes and specifications are produced. At present, these blind plates are piled up in a tool box, which makes it difficult to select the corresponding model of blind plates, delays time, and affects the construction progress. For this reason, the embodiment of the present application also proposes a blind plate placement rack, such as Figure 8 As shown, it specifically includes a bracket 8, the bracket 8 is provided with a support plate 9, a plurality of hanging rods 10 are arranged on the support plate 9, a through hanging hole 6 is opened in the handle 3, and the hole diameter of the hanging hole 6 is adapted to the axial diameter of the hanging rod 10 of the placement rack, so that the blind plate of the present application can be hung on the hanging rod 10 for easy selection.
[0042] Preferably, in order to classify and place the blind plates of the present application and further facilitate selection, the hanging rod 10 is as follows: Figures 9 to 10As shown, it includes a hanging rod body 1001, and the hanging rod body 1001 is provided with a protruding first limiting column 1003 and a second limiting column 1004 along its axial direction. The angle c between the first limiting column 1003 and the second limiting column 1004 of each hanging rod 10 is different, and each angle c corresponds to a blind plate specification. The wall of the hanging hole 6 is provided with a first limiting groove 601 and a second limiting groove 602 along its axial direction, respectively, the first limiting groove 601 is adapted to the first limiting column 1003 of the hanging rod 10, the first limiting column 1003 can be embedded in the first limiting groove 601, the second limiting groove 602 is adapted to the second limiting column 1004 of the hanging rod 10, the second limiting column 1004 can be embedded in the second limiting groove 602, and the angle a between the first limiting groove 601 and the second limiting groove 602 is consistent with the angle c between the first limiting column 1003 and the second limiting column 1004 of the hanging rod 10 on which the blind plate is placed.
[0043] Preferably, when the blind plate of the present application is hung on the hanging rod 10, the first limiting column 1003 and the second limiting column 1004 are quickly embedded in the first limiting groove 601 and the second limiting groove 602, a raised hanging rod guide column 1002 is provided at the top of the hanging rod body 1001 along its axial direction; a hanging rod guide groove 603 is provided at the top of the hole wall of the hanging hole 6 along its axial direction, and the hanging rod guide groove 603 is adapted to the hanging rod guide column of the hanging rod, and the hanging rod guide column 1002 of the hanging rod 10 can be embedded in the hanging rod guide groove 603.
[0044] Preferably, to further facilitate selection, the handle 3 is provided with a label, which can be printed or engraved on the handle 3.
[0045] Preferably, in order to prevent the label from being worn during use, the handle 3 is provided with a label sinking groove 7 , and the label is arranged on the bottom wall of the label sinking groove 7 .
[0046] 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, comprising a blind plate body (1); a handle (3) is provided on the side of the blind plate body (1), characterized in that: A guide portion (2) is provided on the side of the blind plate body (1) away from the handle (3); a through positioning hole (5) is provided in the area where the handle (3) and the blind plate body (1) are connected; and a communicating guide groove (4) is provided at the bottom of the guide portion (2).
2. A blind plate according to claim 1, characterized in that: The positioning hole (5) is a circular hole; the diameter of the positioning hole (5), the width of the guide groove (4) and the shaft diameter of the flange bolt are matched.
3. A blind plate according to claim 1, characterized in that: The positioning hole (5) is a waist-shaped hole; the diameter of the positioning hole (5), the width of the guide groove (4) and the shaft diameter of the flange bolt are matched.
4. A blind plate according to claim 2 or 3, characterized in that: The bottom of the positioning hole (5) is provided with a through arc-shaped positioning hole expansion groove (501), or / and the top of the inner wall of the guide groove (4) is provided with a through arc-shaped guide groove expansion groove (401); the arc-shaped positioning hole expansion groove (501) has an arc-shaped circular diameter smaller than the aperture of the positioning hole (5); the arc-shaped guide groove expansion groove (401) has an arc-shaped circular diameter smaller than the width of the guide groove (4).
5. A blind plate according to claim 1, characterized in that: The handle (3) is provided with a through hanging hole (6); the diameter of the hanging hole (6) is adapted to the axis diameter of the hanging rod of the placement rack, and is used to hang the blind plate on the hanging rod.
6. A blind plate according to claim 5, characterized in that: The wall of the hanging hole (6) is provided with a first limiting groove (601) and a second limiting groove (602) along its axial direction; the first limiting groove (601) is adapted to the first limiting column of the hanging rod, and the first limiting column can be embedded in the first limiting groove (601); the second limiting groove (602) is adapted to the second limiting column of the hanging rod, and the second limiting column can be embedded in the second limiting groove (602); the angle a between the first limiting groove (601) and the second limiting groove (602) is consistent with the angle c between the first limiting column and the second limiting column of the hanging rod on which the blind plate is placed.
7. A blind plate according to claim 6, characterized in that: A hanging rod guide groove (603) is provided at the top of the wall of the hanging hole (6) along its axial direction; the hanging rod guide groove (603) is adapted to a hanging rod guide column of the hanging rod, and the hanging rod guide column of the hanging rod can be embedded in the hanging rod guide groove (603).
8. A blind plate according to claim 1, characterized in that: The handle (3) is provided with a label.
9. A blind plate according to claim 8, characterized in that: The handle (3) is provided with a label sink (7); the label is arranged on the bottom wall of the label sink (7).