Anti-falling screw device of explosion-proof box

Abstract

The utility model provides an anti-falling screw device of an explosion-proof box, and belongs to the technical field of explosion-proof boxes. The anti-falling screw device of the explosion-proof box comprises a box body, a box cover, a sealing rubber strip, a screw, a wedge-shaped locking washer, a sealing cover and an anti-lost mechanism, the sealing rubber strip is arranged between the box body and the box cover, the existence of an annular sliding block and a traction rope ensures that the screw cannot be lost, the wedge-shaped locking washer is arranged on the screw in a sleeving mode, and the anti-lost mechanism is arranged on the box cover. According to the anti-falling screw device of the explosion-proof box, the box body and the box cover are assembled together through the screws, then the sealing cover is inserted into the box cover, the screws are sealed through the sealing ring, the screws are effectively prevented from rusting, the service life of the screws is prolonged, and the screws are effectively prevented from being lost through the annular sliding block and the traction rope; the wedge-shaped locking gasket effectively prevents the screw from falling off, the sealing cover and the sealing ring effectively prevent the screw from rusting, and better use experience is brought to a user.

Description

Technical Field

[0001] The present application relates to the technical field of explosion-proof boxes, and in particular to an anti-falling screw device for explosion-proof boxes. Background Art

[0002] An explosion-proof box is an explosion-proof device used in environments with hazardous dust or hazardous gases. The explosion-proof box can withstand the pressure generated by an internal explosion and prevent the flame and high-temperature gas generated by the internal explosion from escaping the explosion-proof box. At present, in the process of disassembling the explosion-proof box, the fastening screws can be removed in most cases, which sometimes causes the screws to be lost, causing inconvenience during installation. In addition, traditional methods to prevent screws from loosening include injecting thread glue and other measures, but they all have their own limitations and disadvantages. Using thread glue to prevent screws from loosening will make the screws impossible to replace or difficult to replace, which is not conducive to the repair and maintenance of the equipment and brings a bad user experience to the user. Utility Model Content

[0003] In order to make up for the above shortcomings, the present application provides an anti-falling screw device for an explosion-proof box, which aims to improve the current problem that in the process of disassembling the explosion-proof box, the fastening screws can be removed in most cases, which sometimes causes the screws to be lost, causing inconvenience during installation. In addition, the traditional methods of preventing screws from loosening include injecting thread glue and other measures, but they all have their own limitations and disadvantages. Using thread glue to prevent screws from loosening will make the screws impossible to replace or difficult to replace, which is not conducive to the repair and maintenance of the equipment.

[0004] This application is implemented as follows:

[0005] The present application provides an anti-drop screw device for an explosion-proof box, comprising a box body, a box cover, a sealing strip, a screw, a wedge-shaped locking washer, a sealing cover, and an anti-lost mechanism, wherein the sealing strip is arranged between the box body and the box cover, the wedge-shaped locking washer is sleeved on the screw, the screw simultaneously passes through the box body and the box cover, the sealing cover is inserted on the box cover, and the screw is arranged in the sealing cover;

[0006] The anti-lost mechanism is arranged on the box cover and the screws at the same time, and the setting of the anti-lost mechanism prevents the screws from being lost.

[0007] In one embodiment of the present application, the anti-loss mechanism includes an annular slider and a traction rope, the annular slider is rotatably disposed on the box cover, and the traction rope is fixed between the annular slider and the screw.

[0008] In one embodiment of the present application, a slide groove is provided on the box cover, and the annular sliding block is slidably disposed in the slide groove.

[0009] In one embodiment of the present application, a mounting groove is provided on the box cover, and the sealing cover is inserted into the mounting groove.

[0010] In one embodiment of the present application, a sealing ring is further included, wherein the sealing ring is sleeved on the sealing cover and the sealing ring is arranged in the installation groove.

[0011] In one embodiment of the present application, a threaded hole is provided on the box cover, and the screw thread passes through the threaded hole.

[0012] The beneficial effect of the present application is as follows: the present application obtains an anti-falling screw device for an explosion-proof box through the above-mentioned design. When in use, during the process of removing the screw, the annular slider and the traction rope rotate along with it, and the operation of the screw will not be hindered. In addition, the presence of the annular slider and the traction rope ensures that the screw will not be lost. The wedge-shaped locking washer is put on the screw, and then the box body and the box cover are assembled together using the screws, and then the sealing cover is inserted into the box cover. The presence of the sealing ring realizes sealing of the screw, effectively preventing the screw from rusting and increasing the service life of the screw. The anti-falling screw device for the explosion-proof box uses the annular slider and the traction rope to effectively prevent the screw from being lost, the presence of the wedge-shaped locking washer effectively prevents the screw from falling off, and the presence of the sealing cover and the sealing ring effectively prevents the screw from rusting, bringing a better use experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an anti-falling screw device of an explosion-proof box provided in an embodiment of the present application;

[0015] Figure 2 A cross-sectional view of a box body and a box cover provided in an embodiment of the present application;

[0016] Figure 3 Provided for the implementation of this application Figure 2 A magnified image of area A;

[0017] Figure 4 A diagram showing the relationship between the box, the sealing strip, the screws, the annular slider and the sealing cover provided in the embodiment of the present application;

[0018] Figure 5 A schematic diagram of the three-dimensional structure of a screw and a wedge-shaped locking washer provided in an embodiment of the present application;

[0019] Figure 6 A schematic diagram of the three-dimensional structure of the box cover provided in an embodiment of the present application.

[0020] In the figure: 110 - box body; 120 - box cover; 130 - sealing strip; 140 - screw; 150 - wedge-shaped locking washer; 160 - anti-lost mechanism; 161 - annular slider; 162 - traction rope; 170 - sealing cover; 180 - sealing ring; 190 - slide groove; 191 - installation groove; 192 - threaded hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Example

[0023] See also Figure 1 - Figure 6 The present application provides a technical solution: an anti-drop screw device for an explosion-proof box, comprising a box body 110, a box cover 120, a sealing strip 130, a screw 140, a wedge-shaped locking washer 150, a sealing cover 170 and an anti-lost mechanism 160, wherein the sealing strip 130 is arranged between the box body 110 and the box cover 120, the wedge-shaped locking washer 150 is sleeved on the screw 140, the screw 140 simultaneously passes through the box body 110 and the box cover 120 by thread, the sealing cover 170 is inserted on the box cover 120, a mounting groove 191 is provided on the box cover 120, the sealing cover 170 is inserted in the mounting groove 191, the screw 140 is arranged in the sealing cover 170, and further comprising a sealing ring 180, the sealing ring 180 is sleeved on the sealing cover 170, the sealing ring 180 is arranged in the mounting groove 191, a threaded hole 192 is provided on the box cover 120, and the screw 140 passes through the threaded hole 192 by thread;

[0024] The anti-lost mechanism 160 is simultaneously arranged on the box cover 120 and the screw 140. The setting of the anti-lost mechanism 160 prevents the screw 140 from being lost. The anti-lost mechanism 160 includes an annular slider 161 and a traction rope 162. The annular slider 161 is rotatably arranged on the box cover 120. The traction rope 162 is fixed between the annular slider 161 and the screw 140. The traction rope 162 restricts the screw 140 on the box cover 120. A slide groove 190 is opened on the box cover 120, and the annular slider 161 is slidably arranged in the slide groove 190.

[0025] Specifically, the working principle of the anti-falling screw device of the explosion-proof box is as follows: when in use, during the process of removing the screw 140, the annular slider 161 and the traction rope 162 rotate accordingly, and the operation of the screw 140 will not be hindered. In addition, the presence of the annular slider 161 and the traction rope 162 ensures that the screw 140 will not be lost. The wedge-shaped locking washer 150 is sleeved on the screw 140, and then the box body 110 and the box cover 120 are assembled together by using the screw 140, and then the sealing cover 170 is inserted into the box cover 120. The presence of the sealing ring 180 realizes the sealing of the screw 140, effectively preventing the screw 140 from rusting and increasing the service life of the screw 140. The anti-falling screw device of the explosion-proof box uses the annular slider 161 and the traction rope 162 to effectively prevent the screw 140 from being lost, the presence of the wedge-shaped locking washer 150 effectively prevents the screw 140 from falling off, and the presence of the sealing cover 170 and the sealing ring 180 effectively prevents the screw 140 from rusting, bringing a better user experience.

[0026] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. An anti-falling screw device for an explosion-proof box, characterized in that: The invention comprises a box body (110), a box cover (120), a sealing strip (130), a screw (140), a wedge-shaped locking washer (150), a sealing cover (170) and an anti-lost mechanism (160), wherein the sealing strip (130) is arranged between the box body (110) and the box cover (120), the wedge-shaped locking washer (150) is sleeved on the screw (140), the screw (140) simultaneously passes through the box body (110) and the box cover (120), the sealing cover (170) is inserted on the box cover (120), and the screw (140) is arranged in the sealing cover (170); The anti-lost mechanism (160) is arranged on both the box cover (120) and the screw (140) at the same time, and the arrangement of the anti-lost mechanism (160) prevents the screw (140) from being lost.

2. The anti-falling screw device of an explosion-proof box according to claim 1, characterized in that: The anti-lost mechanism (160) comprises an annular slider (161) and a traction rope (162); the annular slider (161) is rotatably disposed on the box cover (120); and the traction rope (162) is fixed between the annular slider (161) and the screw (140).

3. The anti-falling screw device of an explosion-proof box according to claim 2, characterized in that: The box cover (120) is provided with a slide groove (190), and the annular sliding block (161) is slidably disposed in the slide groove (190).

4. The anti-falling screw device of an explosion-proof box according to claim 1, characterized in that: The box cover (120) is provided with a mounting groove (191), and the sealing cover (170) is inserted into the mounting groove (191).

5. The anti-falling screw device of an explosion-proof box according to claim 4, characterized in that: It also includes a sealing ring (180), wherein the sealing ring (180) is sleeved on the sealing cover (170), and the sealing ring (180) is arranged in the installation groove (191).

6. The anti-falling screw device of an explosion-proof box according to claim 1, characterized in that: The box cover (120) is provided with a threaded hole (192), and the screw (140) is threadedly passed through the threaded hole (192).

Images