Sealing rubber strip compression counterforce inspection tool

Abstract

The utility model provides a sealing rubber strip compression counterforce detection tool, and belongs to the technical field of rubber performance detection equipment. Comprising a first connecting base, one side of the first connecting base is provided with a connecting piece used for being fixedly connected with a door frame of the civil air defense door, the other side of the first connecting base is connected with a second connecting base, and the side wall of the second connecting base is slidably connected with a first movable base which is provided with a pressure gauge; the second connecting base is provided with a first driving assembly used for driving the first movable base to move relative to the second connecting base. The permanent magnet jack is magnetically adsorbed and fixed on the inner wall of the door frame of the civil air defense door, so that the testing head of the pressure gauge is aligned with the sealing rubber strip on the door frame, the pressure gauge is close to the sealing rubber strip on the door frame, the testing head abuts against and extrudes the sealing rubber strip, and the sealing rubber strip installed on the door frame is directly subjected to compression counterforce detection. The method has the effect of improving the accuracy of detection values.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber performance testing equipment, in particular to a sealing rubber strip compression reaction force testing tool. Background Art

[0002] In the field of civil air defense and other equipment, civil air defense doors are common safety protection equipment, which provide good protection against impact, flame, etc. In order to achieve the sealing protection effect, different types of sealing strips are embedded and installed on the side walls of the door frame facing the movable door according to product requirements.

[0003] In order to ensure that the airtightness of civil air defense doors is qualified, the compression reaction force of the sealing strips needs to be tested during the acceptance of the civil air defense doors. The current testing method is to use sealing strips of the same specifications as those on the civil air defense doors, cut into multiple sections and place them on a pressure testing machine, compress them at a certain compression speed, measure the size of the reaction force when the sample is compressed and deformed, and calculate the compression reaction force per unit length.

[0004] However, during the testing process, the sample is not exactly the same as the surrounding environment of the sealing strip on the civil air defense door. The sealing strip on the civil air defense door is affected by the embedded grooves around the installation position, and its actual compression reaction force will change. These influences were not taken into account when the sample was tested in the laboratory, resulting in a discrepancy between the detected compression reaction force of the sample and the actual compression reaction force of the sealing strip on the civil air defense door. Utility Model Content

[0005] In view of the above problems, the utility model provides a sealing strip compression reaction force testing tool.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] A sealing strip compression reaction force testing tool is provided, comprising a first connecting seat, a connecting piece for fixedly connecting to a door frame of a civil air defense door is arranged on one side of the first connecting seat, a second connecting seat is connected to the other side of the first connecting seat, a first movable seat is slidably connected to the side wall of the second connecting seat along its own length direction, a pressure gauge is fixedly arranged on the side of the first movable seat close to the first connecting seat, the pressure gauge comprises a pressure gauge body and a test head, the test head is slidably connected to the pressure gauge body along its own axial direction, when the connecting piece is connected and fixed to the door frame of the civil air defense door, the test head of the pressure gauge is vertically axially toward the sealing strip on the door frame, and a first driving component for driving the first movable seat to move relative to the second connecting seat is arranged on the second connecting seat.

[0008] Furthermore, the first drive assembly includes a first screw, a first threaded sleeve and a first handle. The first screw is arranged on the second connecting seat parallel to the sliding direction of the first movable seat. Both ends of the first screw are rotatably connected to the second connecting seat. The first threaded sleeve is fixedly inserted into the first movable seat. The first threaded sleeve is threadedly connected to the first screw. The first handle is coaxially fixedly connected to one end of the first screw.

[0009] Furthermore, the connecting part includes a permanent magnetic lifter, which is fixedly mounted on the first connecting seat. The magnetic surface of the permanent magnetic lifter is parallel to the sliding direction of the first movable seat. The permanent magnetic lifter is used to be magnetically fixedly mounted on the inner wall of the civil air defense door frame.

[0010] Furthermore, a second movable seat is slidably arranged on the first connecting seat, the second connecting seat is fixedly arranged on the second movable seat, and a second driving component for driving the second movable seat to slide perpendicularly to the magnetic attraction surface of the permanent magnetic lifter is arranged on the first connecting seat.

[0011] Furthermore, the second drive assembly includes a second screw, a second threaded sleeve and a second handle. The second screw is arranged on the first connecting seat parallel to the sliding direction of the second movable seat. Both ends of the second screw are rotatably connected to the first connecting seat. The second threaded sleeve is fixedly inserted into the second movable seat. The second threaded sleeve is threadedly connected to the second screw. The second handle is coaxially fixedly connected to one end of the second screw.

[0012] Furthermore, an extrusion sheet is fixedly connected to the end of the test head extending out of the pressure gauge, and the extrusion sheet is parallel to the magnetic attraction surface of the permanent magnetic lifter.

[0013] The beneficial effects of the utility model are as follows: by magnetically adsorbing and fixing the permanent magnetic lifter on the inner wall of the door frame of the civil air defense door, adjusting the position of the second movable seat, so that the test head of the pressure gauge is aligned with the sealing strip on the door frame, and by twisting the first handle, the pressure gauge is brought close to the sealing strip on the door frame, and the test head is used to resist and squeeze the sealing strip, thereby testing the compression reaction force of the sealing strip on the door frame, directly testing the sealing strip installed on the door frame, and improving the accuracy of the detection value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of the inspection tooling of an embodiment of the present application installed on the door frame of a civil air defense door.

[0015] Figure 2 This is a schematic diagram of the overall structure of the inspection tooling according to an embodiment of the present application.

[0016] Among them, 1. door frame; 11. sealing strip; 2. first connecting seat; 21. second screw; 22. second threaded sleeve; 23. second handle; 24. second movable seat; 3. connecting piece; 4. second connecting seat; 41. first movable seat; 42. first screw; 43. first threaded sleeve; 44. first handle; 5. pressure gauge body; 51. test head; 52. extrusion sheet. DETAILED DESCRIPTION

[0017] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] The present application embodiment discloses a sealing strip compression reaction force testing tool, referring to Figure 1 and Figure 2 , including a first connection seat 2, a connection member 3, a second connection seat 4 and a pressure gauge. The first connection seat 2 and the stacked connection seat are installed in an "L" shape. The connection member 3 is connected to the side of the first connection seat 2 away from the second connection seat 4. The connection member 3 is used to be connected and fixed to the door frame 1 of the civil air defense door. The side wall of the second connection seat 4 is slidably connected with a first movable seat 41 along its own length direction. The second connection seat 4 is provided with a first driving assembly for driving the first movable seat 41 to move closer to / away from the first connection seat 2. The pressure gauge is fixedly installed on the first movable seat 41. The pressure gauge includes a pressure gauge body 5 and a test head 51 extending from one end of the pressure gauge body 5. The pressure gauge body 5 is installed and connected to the first movable seat 41. The test head 51 is slidably connected to the pressure gauge body 5 along its own axial direction, and the test head 51 faces the first connection seat 2.

[0019] Specifically, at least one guide rod is fixedly connected to the second connection seat 4 along the sliding direction of the first movable seat 41, a guide hole adapted to the guide rod is penetrated through the first movable seat 41, and the first movable seat 41 is slidably connected to the second connection seat 4 through the guide rod. The first driving assembly includes a first screw 42, a first threaded sleeve 43 and a first handle 44. The first screw 42 is arranged on the second connection seat 4 parallel to the sliding direction of the first movable seat 41, both ends of the first screw 42 are rotatably connected to the second connection seat 4, the first threaded sleeve 43 is fixedly penetrated on the first movable seat 41, the first threaded sleeve 43 is threadedly connected to the first screw 42, and the first handle 44 is coaxially fixedly connected to one end of the first screw 42.

[0020] After the connecting piece 3 is connected and installed on the inner wall of the civil air defense door, the pressure gauge faces the sealing strip 11 on the side wall of the door frame 1, and by twisting the first handle 44, the first screw 42 can be driven to threadably engage with the first threaded sleeve 43, thereby driving the first movable seat 41 to move on the second connecting seat 4. During the movement of the second movable seat 24, the pressure gauge approaches the sealing strip 11, and the test head 51 of the pressure gauge squeezes the sealing strip 11 on the door frame 1. Through the value of the instrument on the pressure gauge, the inspection personnel can obtain the actual compression reaction force of the sealing strip 11 on the door frame 1.

[0021] In the embodiment of the present application, the connecting member 3 includes a permanent magnetic lifter, which is fixedly arranged on the first connecting seat 2, and the magnetic surface of the permanent magnetic lifter is parallel to the sliding direction of the first movable seat 41. Through the permanent magnetic lifter, it can be magnetically fixedly installed on the inner wall of the door frame 1 of the civil air defense door, and can be flexibly used at different positions on the door frame 1, thereby improving the adaptability of the inspection tooling.

[0022] Furthermore, a second movable seat 24 is also slidably mounted on the first connecting seat 2, and the second connecting seat 4 is fixedly mounted on the second movable seat 24. A second driving assembly is provided on the first connecting seat 2 for driving the second movable seat 24 to slide perpendicular to the magnetic suction surface of the permanent magnetic lifter. Specifically, the second driving assembly includes a second screw 21, a second threaded sleeve 22, and a second handle 23. The second screw 21 is arranged on the first connecting seat 2 parallel to the sliding direction of the second movable seat 24. Both ends of the second screw 21 are rotatably connected to the first connecting seat 2. The second threaded sleeve 22 is fixedly penetrated on the second movable seat 24. The second threaded sleeve 22 is threadedly connected to the second screw 21, and the second handle 23 is coaxially fixedly connected to one end of the second screw 21. By rotating the second screw 21, for different distances between the sealing strip 11 and the edge of the door frame 1 on different door frames 1, the relative position between the pressure gauge and the permanent magnetic lifter can be appropriately adjusted, and the needle can be fine-tuned and ensure that the test head 51 of the pressure gauge is aligned with the sealing strip 11.

[0023] Furthermore, the end of the test head 51 extending out of the pressure gauge is fixedly connected with a squeezing sheet 52, and the squeezing sheet 52 is parallel to the magnetic attraction surface of the permanent magnetic lifter. When the test head 51 of the pressure gauge is against the sealing strip 11, the squeezing sheet 52 is parallel to the length direction of the sealing strip 11, so that when squeezing the sealing strip 11, the contact area with the sealing strip 11 can be expanded, reducing the damage to the sealing strip 11 in the morning.

[0024] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sealing strip compression reaction force testing tool, characterized by: The invention comprises a first connecting seat (2), one side of which is provided with a connecting piece (3) for fixedly connecting to a door frame (1) of a civil air defense door, the other side of which is connected to a second connecting seat (4), a side wall of the second connecting seat (4) being slidably connected to a first movable seat (41) along its own length direction, a pressure gauge being fixedly provided on the first movable seat (41) on a side close to the first connecting seat (2), the pressure gauge comprising a pressure gauge body (5) and a test head (51), the test head (51) being slidably connected to the pressure gauge body (5) along its own axial direction, when the connecting piece (3) is connected and fixed to the door frame (1) of the civil air defense door, the test head (51) of the pressure gauge is oriented vertically along its own axial direction toward a sealing strip (11) on the door frame (1), and a first driving component for driving the first movable seat (41) to move relative to the second connecting seat (4) is provided on the second connecting seat (4).

2. A sealing strip compression reaction force testing tool according to claim 1, characterized in that: The first driving assembly comprises a first screw rod (42), a first threaded sleeve (43) and a first handle (44); the first screw rod (42) is arranged on the second connecting seat (4) parallel to the sliding direction of the first movable seat (41); both ends of the first screw rod (42) are rotatably connected to the second connecting seat (4); the first threaded sleeve (43) is fixedly inserted into the first movable seat (41); the first threaded sleeve (43) is threadedly connected to the first screw rod (42); and the first handle (44) is coaxially fixedly connected to one end of the first screw rod (42).

3. A sealing strip compression reaction force testing tool according to claim 1, characterized in that: The connecting member (3) comprises a permanent magnetic lifter, which is fixedly mounted on the first connecting seat (2). The magnetic surface of the permanent magnetic lifter is parallel to the sliding direction of the first movable seat (41). The permanent magnetic lifter is used for being magnetically fixedly mounted on the inner wall of the civil air defense door frame (1).

4. A sealing strip compression reaction force testing tool according to claim 3, characterized in that: A second movable seat (24) is also slidably arranged on the first connecting seat (2), the second connecting seat (4) is fixedly arranged on the second movable seat (24), and a second driving component is arranged on the first connecting seat (2) for driving the second movable seat (24) to slide perpendicularly to the magnetic attraction surface of the permanent magnetic lifter.

5. A sealing strip compression reaction force testing tool according to claim 4, characterized in that: The second driving assembly comprises a second screw rod (21), a second threaded sleeve (22) and a second handle (23); the second screw rod (21) is arranged on the first connecting seat (2) parallel to the sliding direction of the second movable seat (24); both ends of the second screw rod (21) are rotatably connected to the first connecting seat (2); the second threaded sleeve (22) is fixedly inserted into the second movable seat (24); the second threaded sleeve (22) is threadedly connected to the second screw rod (21); and the second handle (23) is coaxially fixedly connected to one end of the second screw rod (21).

6. A sealing strip compression reaction force testing tool according to any one of claims 3 to 5, characterized in that: The end of the test head (51) extending out of the pressure gauge is fixedly connected to an extrusion sheet (52), and the extrusion sheet (52) is parallel to the magnetic attraction surface of the permanent magnetic lifter.

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