Negative pressure firing pin type blind plate

Abstract

The utility model relates to the technical field of pipeline sealing, in particular to a negative pressure firing pin type blind plate which comprises a pipeline and a blind plate body, the blind plate body is arranged at the joint of the pipeline, protruding parts are arranged on the two sides of the blind plate body, a plurality of evenly-distributed adjusting grooves are formed in the protruding parts, adjusting blocks are installed in the adjusting grooves in a sliding mode, and the adjusting blocks are arranged on the blind plate body. And notches are formed in the middles of the peripheries of the adjusting blocks on the same side, and sealing rubber pads are arranged in the notches on the same side. The device has the advantages that when the firing pin body moves into the rod sleeve, the sharp portion of the lower portion of the firing pin body punctures the air bag, the cavity of the rod sleeve is filled with air stored in the air bag, due to the fact that the pressure intensity is increased, the movable rod moves in the axial direction of the rod sleeve, then the movable plate moves to be matched with the connecting rod and the adjusting groove, and the sealing rubber mat expands outwards; and irregular parts of the inner wall of the pipeline are further filled and sealed, so that effective sealing is formed, and the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sealing, in particular to a negative pressure striker type blind plate. Background Art

[0002] A blind plate, also known as a flange cover or pipe plug, is a device used to close the opening of a pipe. It is mainly used to completely isolate the production medium to prevent leakage of the medium from affecting production safety. It is suitable for pipes of various specifications and materials and has strong versatility. It can not only be used to temporarily close the pipe for maintenance or inspection, but also for permanent closure. In the maintenance work of systems such as petroleum, chemical, water conservancy and electric power, this blind plate provides an efficient solution that saves manpower and time.

[0003] In the prior art, workers would install a blind plate at the connection between two pipes and use a sealing gasket to increase the sealing of the pipe connection. However, due to the irregular shape that may appear inside the pipe and the lack of a fine-tuning mechanism for the sealing gasket, the sealing gasket cannot be completely fitted to the pipe, affecting the sealing of the pipe. Utility Model Content

[0004] The utility model aims to provide a negative pressure striker type blind plate to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure striker type blind plate, comprising a pipeline and a blind plate body, the blind plate body is arranged at the pipeline connection, both sides of the blind plate body are provided with raised parts, the raised parts are provided with a plurality of evenly distributed adjustment grooves, the adjustment grooves are slidably installed with adjustment blocks, the middle part of the outer periphery of the adjustment block on the same side is provided with notches, and the notches on the same side are provided with sealing rubber pads;

[0006] The adjusting block is fixedly installed with a support ear on the side away from the pipeline, and a connecting rod is rotatably installed on the surface of the support ear. A movable plate is rotatably installed on the end of the connecting rod on the same side away from the support ear, and a movable rod is fixedly installed on the side where the movable plates are close to each other. A rod sleeve is provided on the outer periphery of the movable rod, and an airbag is provided in the middle of the rod sleeve. A mounting frame is fixedly installed in the middle of the outer periphery of the rod sleeve, and an electric push rod is fixedly installed in the middle of the mounting frame. A striker body is fixedly installed on the driving end of the electric push rod, and a slot hole is provided in the middle of the outer periphery of the rod sleeve, and the slot hole is located directly below the striker body.

[0007] Preferably, a plurality of evenly distributed mounting holes are provided on the surface of the blind plate body.

[0008] Preferably, springs are fixedly mounted on the middle of the movable plates away from each other, and one end of the spring away from the movable plates is fixedly mounted on the inner side walls on both sides of the blind plate body.

[0009] Preferably, an elastic compensation block is fixedly mounted on one side of the adjustment block away from the notch, and one end of the elastic compensation block away from the adjustment block is fixedly mounted on the side wall of the adjustment slot on the same side.

[0010] Preferably, a plurality of evenly distributed elastic compensation bands are fixedly mounted on the outer peripheral edge of the protrusion, and the elastic compensation bands are fixedly mounted on the sealing rubber pad on the same side away from the protrusion.

[0011] Preferably, guide grooves are symmetrically provided in the adjusting grooves, guide blocks are slidably installed in the guide grooves, and the guide blocks on the same side are fixedly installed on the adjusting blocks on the same side.

[0012] Preferably, the guide block surface is provided with a mounting groove, and a plurality of evenly distributed balls are embedded and installed in the mounting groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The negative pressure striker type blind plate proposed in the present invention is provided with an adjustment block and an adjustment groove. When the striker body moves to the inside of the rod sleeve, the sharp part at the bottom of the striker body will pierce the airbag, so that the gas stored in the airbag is filled in the cavity of the rod sleeve. Due to the increase in pressure, the movable rod will move along the axial direction of the rod sleeve, and then the movable plate will move, and cooperate with the connecting rod and the adjustment groove, and the sealing gasket will expand outward to further fill and seal the irregularities of the inner wall of the pipe, thereby forming an effective seal and increasing the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the partial structure of the blind plate main body of the utility model;

[0017] Figure 3 This is a schematic diagram of the local structure of the rod sleeve of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the rod sleeve of the utility model;

[0019] Figure 5 This is a schematic diagram of the local structure of the adjustment tank of the utility model;

[0020] Figure 6 This is a schematic diagram of the local structure of the regulating block of the utility model.

[0021] In the figure: 1. pipeline; 2. blind plate body; 3. mounting hole; 4. adjustment block; 5. adjustment slot; 6. sealing rubber pad; 7. support ear; 8. movable plate; 9. connecting rod; 10. rod sleeve; 11. movable rod; 12. mounting frame; 13. electric push rod; 14. striker body; 15. slot hole; 16. spring; 17. airbag; 18. elastic compensation belt; 19. elastic compensation block; 20. notch; 21. guide block; 22. ball; 23. mounting slot; 24. guide slot. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 6 The utility model provides a technical solution: a negative pressure striker type blind plate, comprising a pipeline 1 and a blind plate body 2, the blind plate body 2 is arranged at the connection of the pipeline 1, both sides of the blind plate body 2 are provided with raised parts, and a plurality of evenly distributed adjustment grooves 5 are opened on the raised parts, and an adjustment block 4 is slidably installed in the adjustment groove 5, and a notch 20 is opened in the middle of the outer circumference of the adjustment block 4 on the same side, and a sealing rubber pad 6 is arranged in the notch 20 on the same side, and a support ear 7 is fixedly installed on the side of the adjustment block 4 away from the pipeline 1, and a connecting rod 9 is rotatably installed on the surface of the support ear 7, and a movable plate 8 is rotatably installed on the end of the connecting rod 9 on the same side away from the support ear 7, and a movable rod 11 is fixedly installed on the side where the movable plates 8 are close to each other, and a rod sleeve 10 is sleeved on the outer circumference of the movable rod 11, and an air bag 17 is arranged in the middle of the rod sleeve 10, and a mounting frame 12 is fixedly installed in the middle of the outer circumference of the rod sleeve 10, and an electric push rod 13 is fixedly installed in the middle of the mounting frame 12, and an electric push rod 13 is fixedly installed in the middle of the mounting frame 12, The driving end of the movable push rod 13 is fixedly installed with a striker body 14, and a slot 15 is provided in the middle part of the outer periphery of the rod sleeve 10, and the slot 15 is arranged directly below the striker body 14. By controlling the electric push rod 13, the electric push drives the striker body 14 to move toward the slot 15. When the striker body 14 moves to the inside of the rod sleeve 10, the baffle on the rod sleeve 10 cooperates with the sealing gasket to seal the slot 15, so that the rod sleeve 10 can be in a closed state. At the same time, the sharp part of the lower part of the striker body 14 will pierce the airbag 17, so that the gas stored in the airbag 17 is filled in the cavity of the rod sleeve 10. Due to the increase in pressure, the movable rod 11 will move axially along the rod sleeve 10, and then the movable plate 8 will move, and cooperate with the connecting rod 9. At this time, the adjusting block 4 will move in the adjusting groove 5, and the sealing rubber gasket 6 will expand outward to further fill and seal the irregularities of the inner wall of the pipeline 1 to form an effective seal.

[0024] A plurality of evenly distributed mounting holes 3 are provided on the surface of the blind plate body 2. By setting the mounting holes 3 and cooperating with fixing bolts, the blind plate body 2 can be installed at the connection position of the two pipes 1 to increase the stability of the blind plate body 2. A spring 16 is fixedly installed at the middle of the side where the movable plate 8 is away from each other. The end of the spring 16 away from the movable plate 8 is fixedly installed on the inner side walls on both sides of the blind plate body 2. By setting the spring 16, when the striker body 14 is disengaged from the slot 15, the spring 16 will reset the movable plate 8, thereby realizing the reset of the sealing gasket 6.

[0025] An elastic compensation block 19 is fixedly installed on the side of the adjustment block 4 away from the notch 20, and the end of the elastic compensation block 19 away from the adjustment block 4 is fixedly installed on the side wall of the adjustment groove 5 on the same side. A plurality of evenly distributed elastic compensation belts 18 are fixedly installed on the outer peripheral edge of the raised portion, and the side of the elastic compensation belt 18 away from the raised portion is fixedly installed on the sealing pad 6 on the same side. By setting the elastic compensation block 19, when the adjustment block 4 moves along the adjustment groove 5, the elastic compensation block 19 can compensate for the gap generated between the adjustment groove 5 and the adjustment block 4. At the same time, when the sealing pad 6 expands outward, the elastic compensation belt 18 can make up for the gap between the sealing pad 6 and the raised portion, thereby increasing the sealing effect of the blind plate body 2.

[0026] The adjusting groove 5 is symmetrically provided with guide grooves 24, and guide blocks 21 are slidably installed in the guide grooves 24. The guide blocks 21 on the same side are fixedly installed on the adjusting block 4 on the same side. The surfaces of the guide blocks 21 are provided with mounting grooves 23, and a plurality of evenly distributed balls 22 are embedded and installed in the mounting grooves 23. By arranging the balls 22, the friction between the adjusting block 4 and the side wall of the adjusting groove 5 can be reduced, and the guide block 21 moves in the guide groove 24, which can improve the smoothness of the movement of the adjusting block 4.

[0027] During actual use, the staff uses fixing bolts to install the blind plate body 2 at the connection position of the two pipes 1. At this time, by controlling the electric push rod 13, the striker body 14 will move into the slot 15, and then the striker body 14 will pierce the airbag 17. Under the cooperation of atmospheric pressure, the movable rod 11 will drive the movable plate 8 to move, so that the connecting rod 9 will push the adjustment block 4 to move, and then the sealing gasket 6 can be adjusted. When the striker body 14 leaves the slot 15, the pressure in the rod sleeve 10 is restored. At this time, the spring 16 will reset the movable plate 8, so that the sealing gasket 6 will be reset, which is convenient for the next use. At the same time, fixing bolts (not marked in the figure) are provided in the middle of the blind plate body 2 and the rod sleeve 10, which can facilitate the staff to disassemble the blind plate body 2 and the rod sleeve 10, and replace the airbag 17.

[0028] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A negative pressure striker type blind plate, comprising a pipeline (1) and a blind plate body (2), wherein the blind plate body (2) is arranged at the connection of the pipeline (1), and is characterized in that: Both sides of the blind plate body (2) are provided with raised parts, and a plurality of evenly distributed adjustment grooves (5) are provided on the raised parts. Adjustment blocks (4) are slidably installed in the adjustment grooves (5). A notch (20) is provided in the middle of the outer circumference of the adjustment block (4) on the same side, and a sealing rubber pad (6) is provided in the notch (20) on the same side; A support ear (7) is fixedly mounted on the side of the adjustment block (4) away from the pipe (1), a connecting rod (9) is rotatably mounted on the surface of the support ear (7), a movable plate (8) is rotatably mounted on the end of the connecting rod (9) on the same side away from the support ear (7), a movable rod (11) is fixedly mounted on the side of the movable plates (8) close to each other, a rod sleeve (10) is sleeved on the outer periphery of the movable rod (11), an air bag (17) is provided in the middle of the inner periphery of the rod sleeve (10), a mounting frame (12) is fixedly mounted on the middle of the outer periphery of the rod sleeve (10), an electric push rod (13) is fixedly mounted on the middle of the inner periphery of the mounting frame (12), a striker body (14) is fixedly mounted on the driving end of the electric push rod (13), a slot hole (15) is provided in the middle of the outer periphery of the rod sleeve (10), and the slot hole (15) is arranged directly below the striker body (14).

2. A negative pressure striker type blind plate according to claim 1, characterized in that: The surface of the blind plate body (2) is provided with a plurality of evenly distributed mounting holes (3).

3. A negative pressure striker type blind plate according to claim 1, characterized in that: A spring (16) is fixedly mounted on the middle of the side away from each other of the movable plates (8), and the end of the spring (16) away from the movable plates (8) is fixedly mounted on the inner side walls on both sides of the blind plate body (2).

4. The negative pressure striker type blind plate according to claim 1, characterized in that: An elastic compensation block (19) is fixedly mounted on the side of the adjustment block (4) away from the notch (20), and an end of the elastic compensation block (19) away from the adjustment block (4) is fixedly mounted on the side wall of the adjustment slot (5) on the same side.

5. The negative pressure striker type blind plate according to claim 1, characterized in that: A plurality of evenly distributed elastic compensation bands (18) are fixedly mounted on the outer peripheral edge of the protruding portion, and the elastic compensation bands (18) are fixedly mounted on the sealing rubber pad (6) on the same side away from the protruding portion.

6. The negative pressure striker type blind plate according to claim 1, characterized in that: The adjusting grooves (5) are symmetrically provided with guide grooves (24), the guide grooves (24) are slidably provided with guide blocks (21), and the guide blocks (21) on the same side are fixedly mounted on the adjusting blocks (4) on the same side.

7. A negative pressure striker type blind plate according to claim 6, characterized in that: The guide blocks (21) are provided with mounting grooves (23) on their surfaces, and a plurality of evenly distributed balls (22) are embedded and mounted in the mounting grooves (23).

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