Civil air defense door strength inspection device

Abstract

The utility model discloses a civil air defense door strength inspection device, which comprises a bottom plate, side plates are fixed on two sides of the top of the bottom plate, a same top plate is fixed on the two side plates, an L-shaped bottom plate is fixed on the top of the bottom plate, an L-shaped top plate is fixed on the bottom of the top plate, an extrusion mechanism is mounted on the bottom plate, and the extrusion mechanism is fixed on the bottom plate. The side wall is provided with a strength detection mechanism through an adjusting mechanism; the extrusion mechanism comprises connecting rods located at the L-shaped bottom plate and the L-shaped top plate correspondingly, extrusion plates are fixed to the outer walls of the connecting rods, the two connecting rods are connected through a transmission part, fixing lugs are fixed to the two ends of the outer wall of the bottom plate and the two ends of the outer wall of the top plate correspondingly, and the connecting rods are rotationally arranged between the two corresponding fixing lugs. The transmission part comprises a second synchronous wheel and a first synchronous wheel which are coaxially fixed to the two connecting rods respectively, and the second synchronous wheel and the first synchronous wheel are connected through a synchronous belt. The civil air defense door can be conveniently stabilized, strength detection is carried out, and convenience and practicability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to civil defense doors, and in particular to a strength testing device for civil defense doors. Background Art

[0002] Civil air defense doors are civil defense protection equipment. They are classified into ordinary single-leaf and double-leaf protective closed doors and closed doors, single-leaf and double-leaf protective closed doors and closed doors with movable thresholds, hose-type explosion-proof wave valves, and suspended swing-type explosion-proof wave (shielding) valves. In order to ensure the quality of civil air defense doors, strength tests are often carried out after the production of civil air defense doors is completed.

[0003] For the strength test of civil defense doors, it is necessary to cooperate with hydraulic stamping equipment to realize the overall compressive strength test of the civil defense doors. When placing the civil defense doors, they need to be manually pushed to the upper end of the transmission roller to perform the stamping strength test. This process has a low stability for the civil defense doors, making it easier for the civil defense doors to deviate left and right during the stamping activity, resulting in deviations in the compressive strength test data and affecting the accuracy of the civil defense door strength test. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a civil defense door strength testing device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A civil air defense door strength testing device, comprising a bottom plate, side plates fixed to both sides of the top of the bottom plate, the two side plates fixed to the same top plate, an L-shaped bottom plate fixed to the top of the bottom plate, an L-shaped top plate fixed to the bottom of the top plate, a squeezing mechanism installed on the bottom plate, and a strength detection mechanism installed on the side wall via an adjustment mechanism;

[0007] The extrusion mechanism includes connecting rods respectively located at the L-shaped bottom plate and the L-shaped top plate. The outer walls of the connecting rods are fixed with extrusion plates. The two connecting rods are connected by a transmission member.

[0008] As a further solution of the present invention, fixing ears are fixed at both ends of the outer walls of the bottom plate and the top plate, and the connecting rod is rotatably arranged between the two corresponding fixing ears.

[0009] As a further solution of the present invention, the transmission part includes a second synchronous wheel and a first synchronous wheel respectively fixed coaxially with the two connecting rods, the second synchronous wheel and the first synchronous wheel are connected by a synchronous belt, and a second bidirectional motor is fixed with an output shaft coaxially fixed with the corresponding first synchronous wheel on the back side of the outer wall of the base plate.

[0010] As a further solution of the present invention, a slide plate is slidably provided on the top of the L-shaped bottom plate, a limit strip is fixed on the inner wall of the L-shaped bottom plate, and a sliding groove adapted to the limit strip is provided on the slide plate.

[0011] As a further solution of the present invention, the strength detection mechanism includes a mounting plate, a hydraulic cylinder is fixed on the mounting plate, and a pressure plate is fixed to the output end of the hydraulic cylinder.

[0012] As a further solution of the present invention, the adjustment mechanism includes a first bidirectional motor fixed on the top of the top plate, the output shaft of the first bidirectional motor is fixed with a threaded screw, the bottom of the threaded screw is rotatably set on the top of the base plate, a screw hole adapted to the threaded screw is provided on the mounting plate, two guide holes are provided on the mounting plate, and a guide rod passing through the guide hole is fixed between the base plate and the top plate.

[0013] As a further solution of the present invention, a controller is fixed to one side of the side plate, and the controller is electrically connected to the hydraulic cylinder, the first bidirectional motor and the second bidirectional motor.

[0014] The beneficial effects of the utility model are:

[0015] The utility model: through the provision of a bottom plate, a top plate, an L-shaped bottom plate, an L-shaped top plate, an extrusion mechanism, a strength detection mechanism and an adjustment mechanism, the second bidirectional motor works to rotate the first synchronous wheel, and the second synchronous wheel rotates under the action of the synchronous belt, thereby realizing the deflection of the connecting rod, so that the extrusion plate squeezes the civil air defense door to fix it, and then the hydraulic cylinder works to make the pressure plate squeeze the civil air defense door to detect its strength. The controller can control the ejection pressure of the hydraulic cylinders on both sides, and the maximum compressive strength of the civil air defense door can be known through the stamping value displayed on the controller;

[0016] The utility model: a slide plate is slidably provided on the L-shaped bottom plate, which is convenient for pulling out the slide plate to support the civil air defense door to slide between the bottom plates, making it convenient for pushing the civil air defense door in;

[0017] The utility model provides an adjustment mechanism comprising a first bidirectional motor, a threaded screw and a guide rod. Through the above design, the height of the strength detection mechanism can be adjusted to achieve strength detection at different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a civil air defense door strength testing device proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the first partial three-dimensional structure of a civil air defense door strength testing device proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of a second partial three-dimensional structure of a civil air defense door strength testing device proposed by the present invention;

[0021] Figure 4 A civil defense door strength testing device proposed by the utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] In the figure: 1. Bottom plate; 2. Top plate; 3. L-shaped bottom plate; 4. L-shaped top plate; 5. Extrusion mechanism; 6. Strength detection mechanism; 7. First bidirectional motor; 8. Fixing ear; 9. Connecting rod; 10. Extrusion plate; 11. First synchronous wheel; 12. Second synchronous wheel; 13. Synchronous belt; 14. Slide plate; 15. Limiting strip; 16. Mounting plate; 17. Hydraulic cylinder; 18. Pressure plate; 19. Threaded screw; 20. Guide rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Reference Figures 1-4 A civil air defense door strength testing device includes a bottom plate 1, side plates are fixed on both sides of the top of the bottom plate 1, the two side plates are fixed to the same top plate 2, an L-shaped bottom plate 3 is fixed on the top of the bottom plate 1, and an L-shaped top plate 4 is fixed on the bottom of the top plate 2. A squeezing mechanism 5 is installed on the bottom plate 1, and a strength detection mechanism 6 is installed on the side wall through an adjustment mechanism;

[0026] The extrusion mechanism 5 includes connecting rods 9 located at the L-shaped bottom plate 3 and the L-shaped top plate 4 respectively. An extrusion plate 10 is fixed to the outer wall of the connecting rod 9. The two connecting rods 9 are connected by a transmission member.

[0027] In this embodiment, fixing ears 8 are fixed to both ends of the outer walls of the bottom plate 1 and the top plate 2 , and the connecting rod 9 is rotatably arranged between the two corresponding fixing ears 8 .

[0028] In this embodiment, the transmission part includes a second synchronous wheel 12 and a first synchronous wheel 11 respectively fixed coaxially with the two connecting rods 9. The second synchronous wheel 12 and the first synchronous wheel 11 are connected by a synchronous belt 13. A second bidirectional motor is fixed on the back side of the outer wall of the base plate 1, and the output shaft is coaxially fixed with the corresponding first synchronous wheel 11.

[0029] In this embodiment, a slide plate 14 is slidably provided on the top of the L-shaped bottom plate 3 , a limit strip 15 is fixed to the inner wall of the L-shaped bottom plate 3 , and a sliding groove adapted to the limit strip 15 is provided on the slide plate 14 .

[0030] In this embodiment, the strength detection mechanism 6 includes a mounting plate 16 , a hydraulic cylinder 17 is fixed on the mounting plate 16 , and a pressure plate 18 is fixed to the output end of the hydraulic cylinder 17 .

[0031] In this embodiment, the adjustment mechanism includes a first bidirectional motor 7 fixed on the top of the top plate 2, and the output shaft of the first bidirectional motor 7 is fixed with a threaded screw 19, the bottom rotation of the threaded screw 19 is set on the top of the base plate 1, and a screw hole adapted to the threaded screw 19 is provided on the mounting plate 16. Two guide holes are provided on the mounting plate 16, and a guide rod 20 passing through the guide hole is fixed between the base plate 1 and the top plate 2.

[0032] In this embodiment, a controller is fixed to one side plate, and the controller is electrically connected to the hydraulic cylinder 17, the first bidirectional motor 7 and the second bidirectional motor.

[0033] Working principle: when in use, through the provided bottom plate 1, top plate 2, L-shaped bottom plate 3, L-shaped top plate 4, extrusion mechanism 5, strength detection mechanism 6 and adjustment mechanism, the extrusion mechanism 5 includes a transmission part, a strength detection mechanism 6, an extrusion plate 10 and a fixing ear 8, and the provided transmission part includes a second bidirectional motor, a first synchronous wheel 11, a second synchronous wheel 12 and a synchronous belt 13. The two strength detection mechanisms 6 are respectively located on both sides, and the civil air defense door is placed between the L-shaped bottom plate 3 and the L-shaped top plate 4. By starting the second bidirectional motor to work, the first synchronous wheel 11 rotates, and the second synchronous wheel 12 rotates under the action of the synchronous belt 13, thereby realizing the deflection of the connecting rod 9, so that the extrusion plate 10 squeezes the civil air defense door for fixing, and then the hydraulic cylinder 17 works to make the pressure plate 18 squeeze the civil air defense door to detect its strength. The controller can control the ejection pressure of the hydraulic cylinders 17 on both sides, and the maximum compressive strength of the civil air defense door can be known through the stamping value displayed on the controller.

[0034] Furthermore, a slide plate 14 is slidably provided on the L-shaped bottom plate 3, so that the slide plate 14 can be easily pulled out to support the civil air defense door to slide between the bottom plates 1 and 1, thereby facilitating the pushing in of the civil air defense door;

[0035] Furthermore, the provided adjustment mechanism includes a first bidirectional motor 7, a threaded screw 19 and a guide rod 20. Through the above design, the height of the strength detection mechanism 6 can be adjusted to achieve strength detection at different heights.

[0036] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A civil air defense door strength testing device, comprising a bottom plate (1), characterized in that: Side panels are fixed to both sides of the top of the bottom plate (1), and the two side panels are fixed to the same top plate (2). An L-shaped bottom plate (3) is fixed to the top of the bottom plate (1), and an L-shaped top plate (4) is fixed to the bottom of the top plate (2). A squeezing mechanism (5) is installed on the bottom plate (1), and a strength detection mechanism (6) is installed on the side wall through an adjustment mechanism. The extrusion mechanism (5) comprises connecting rods (9) respectively located at the L-shaped bottom plate (3) and the L-shaped top plate (4); an extrusion plate (10) is fixed to the outer wall of the connecting rod (9); and the two connecting rods (9) are connected via a transmission member.

2. A civil defense door strength testing device according to claim 1, characterized in that: Both ends of the outer walls of the bottom plate (1) and the top plate (2) are fixed with fixing ears (8), and the connecting rod (9) is rotatably arranged between the two corresponding fixing ears (8).

3. The civil defense door strength testing device according to claim 2, characterized in that: The transmission member comprises a second synchronous wheel (12) and a first synchronous wheel (11) respectively fixed coaxially with the two connecting rods (9); the second synchronous wheel (12) and the first synchronous wheel (11) are connected via a synchronous belt (13); and a second bidirectional motor having an output shaft coaxially fixed with the corresponding first synchronous wheel (11) is fixed on the back side of the outer wall of the base plate (1).

4. The civil defense door strength testing device according to claim 3, characterized in that: A slide plate (14) is slidably provided on the top of the L-shaped bottom plate (3), a limit strip (15) is fixed on the inner wall of the L-shaped bottom plate (3), and a sliding groove adapted to the limit strip (15) is provided on the slide plate (14).

5. The civil defense door strength testing device according to claim 4, characterized in that: The strength detection mechanism (6) comprises a mounting plate (16), a hydraulic cylinder (17) is fixed on the mounting plate (16), and a pressure plate (18) is fixed at the output end of the hydraulic cylinder (17).

6. The civil defense door strength testing device according to claim 5, characterized in that: The adjustment mechanism includes a first bidirectional motor (7) fixed on the top of the top plate (2), the output shaft of the first bidirectional motor (7) is fixed with a threaded screw (19), the bottom of the threaded screw (19) is rotatably set on the top of the bottom plate (1), the mounting plate (16) is provided with a screw hole adapted to the threaded screw (19), the mounting plate (16) is provided with two guide holes, and a guide rod (20) passing through the guide hole is fixed between the bottom plate (1) and the top plate (2).

7. The civil defense door strength testing device according to claim 6, characterized in that: A controller is fixed to one side of the side plate, and the controller is electrically connected to the hydraulic cylinder (17), the first bidirectional motor (7) and the second bidirectional motor.

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