Safety interlocking door device

Abstract

The present invention relates to the technical field of power distribution cabinet equipment, specifically to a safety interlocking protective door device, comprising a power distribution cabinet, and a No. 1 door and a No. 2 door which are arranged side by side on the power distribution cabinet, wherein the No. 1 door is located on the right side of the No. 2 door, the left sides of the No. 1 door and the No. 2 door are hinged on the power distribution cabinet, and the right sides are set as free edges, and a positioning hole is provided on the side wall of the free edge of the No. 2 door; a fixing plate is provided between the No. 1 door and the No. 2 door, a groove is provided on the fixing plate, and a locking mechanism which can act with the No. 1 door and the No. 2 door is fixed in the groove through a supporting member. The present invention can ensure that the staff can check and repair in order to avoid safety accidents, and the device is easy to replace in time and simple to operate.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinet equipment, in particular to a safety interlocking protective door device. Background Art

[0002] The distribution cabinet includes power distribution cabinet, lighting distribution cabinet and metering cabinet, which is the final equipment of the distribution system. The distribution cabinet is used for power conversion and control of lighting and power distribution. The distribution cabinet is a general term for the motor control center. The distribution cabinet is used in places where the load is relatively dispersed and there are fewer circuits.

[0003] For some production sites, the power-on or power-off of some interrelated equipment must follow a sequence. If the staff makes mistakes during the actual operation and the power-on or power-off sequence is wrong, it may cause the equipment to burn out, and in serious cases, it may cause safety accidents such as equipment explosion. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the present invention provides a safety interlocking protective door device, which can ensure that workers check and repair in order to avoid safety accidents, and the device is easy to replace in time and simple to operate.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a safety interlocking protective door device, comprising a power distribution cabinet, and a No. 1 door and a No. 2 door arranged side by side on the power distribution cabinet, wherein the No. 1 door is located on the right side of the No. 2 door, the left sides of the No. 1 door and the No. 2 door are both hinged on the power distribution cabinet, and the right sides are both set as free edges, and a positioning hole is provided on the side wall of the free edge of the No. 2 door; a fixing plate is provided between the No. 1 door and the No. 2 door, and a groove is provided on the fixing plate, and a locking mechanism that can act with the No. 1 door and the No. 2 door is fixed in the groove through a support member;

[0008] The interlocking mechanism includes a piston cylinder, and a partition, a first piston, a second piston, a first plug rod, a second plug rod, a first spring and a second spring arranged inside the piston cylinder, the partition is fixed to the middle part of the piston cylinder, the first piston and the second piston are respectively arranged on the right and left sides of the partition, one end of the first plug rod and the second plug rod are respectively fixed to the first piston and the second piston, and the other end is a free end, the first spring is fixed between the partition and the first piston, and the second spring is fixed between the partition and the second piston.

[0009] Furthermore, a left through hole and a right through hole for inserting the second insertion rod and the first insertion rod are respectively formed on the left and right side walls of the groove, and the left through hole is arranged corresponding to the positioning hole.

[0010] Furthermore, the free ends of the first plug rod and the second plug rod are both threadedly connected with auxiliary cylinders, and the side surfaces of the auxiliary cylinders are provided with balls.

[0011] Furthermore, an inserting hole is provided on the upper side of the groove, and a sliding groove is provided on the lower side.

[0012] Furthermore, the support member is composed of an upper clamp and a lower clamp, both of which are provided with arc grooves corresponding to the piston cylinder, the upper side of the upper clamp is provided with an insertion block corresponding to the socket, and the bottom surface of the lower clamp is provided with a sliding block corresponding to the slide groove; the insertion block is composed of a fixed block and a movable sleeve, the fixed block is fixedly connected to the upper clamp, the movable sleeve is movably fitted on the fixed block, and a third spring is connected between the upper side of the fixed block and the movable sleeve, and a control strip is horizontally provided on the outer wall of the movable sleeve.

[0013] Furthermore, the middle portion of the upper clamp is set as a convex plate, and the bottom surface of the convex plate is provided with an illumination lamp.

[0014] Furthermore, a positioning groove is provided on the inner wall of the arc groove on the lower clamping member; and a positioning block corresponding to the positioning groove is provided on the bottom surface of the piston cylinder.

[0015] Furthermore, the power distribution cabinet is also provided with a protection door, which is arranged at the upper right corner of door No. 1, and a fixing plate and a locking mechanism are also provided between the protection door and door No. 1.

[0016] (III) Beneficial effects

[0017] The present invention provides a safety interlocking protective door device, which has the following beneficial effects:

[0018] (1) In the present invention, when door No. 1 is closed, the left side wall of door No. 1 will exert a leftward squeezing force on the first plunger, and then the first piston will move to the left. Due to the existence of the air column, the second piston will also move to the left. The free end of the second plunger passes through the left through hole and is inserted into the positioning hole on door No. 2. At this time, door No. 2 is locked by the second plunger; when door No. 1 is opened first, the left side wall of door No. 1 will be separated from the first plunger, and the second plunger will be separated from the positioning hole without being subjected to force, so that door No. 2 can be opened. The setting of the interlocking mechanism requires the staff to open door No. 1 first before opening door No. 2, ensuring that the staff can check and repair in order and avoiding safety accidents caused by staff's misoperation.

[0019] (2) The support member provided in the present invention can be quickly combined with the interlocking mechanism into a whole, and the support member can be quickly removed by pressing the control strip downward and pressing the first insertion rod inward, so that the interlocking mechanism can be replaced and repaired after being damaged, thereby ensuring the normal operation of the device.

[0020] (3) The present invention can rotate the adjustment cylinder to change the length of the insertion rod, which can ensure the normal and effective locking operation; the setting of the ball can make the insertion rod contact with the door body smoother and more stable, preventing it from getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of Example 1;

[0022] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0023] Figure 3 It is a schematic diagram of the structures of Embodiment 2 and Embodiment 3;

[0024] Figure 4 for Figure 3 A is an enlarged schematic diagram;

[0025] Figure 5 It is a schematic diagram of the structure of the support member of the present invention;

[0026] Figure 6 This is a schematic diagram of the working state of the present invention after the No. 1 door is closed;

[0027] Figure 7 This is a working schematic diagram of the present invention after the No. 1 door is opened;

[0028] In the figure: 1-power distribution cabinet, 2-door No. 1, 3-door No. 2, 301-positioning hole, 4-fixing plate, 401-groove, 5-piston cylinder, 6-partition, 7-first piston, 8-second piston, 9-first plug rod, 10-second plug rod, 11-first spring, 12-second spring, 13-support, 14-auxiliary cylinder, 1401-ball, 15-upper clamp, 16-lower clamp, 17-insert block, 1701-fixed block, 1702-movable sleeve, 18-slider, 19-convex plate, 20-lighting lamp, 21-control strip, 22-arc groove, 23-positioning groove, 24-protective door. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1-2 , Figure 6-7 As shown, the safety interlocking protective door device includes a distribution cabinet 1, and a door No. 1 2 and a door No. 2 3 are arranged side by side horizontally on the front of the distribution cabinet 1, and the door No. 1 2 is located on the right side of the door No. 2 3. The left sides of the door No. 1 and the door No. 2 3 are connected to the distribution cabinet 1 through hinges, and the right sides are all free edges, so that the free edge of the door No. 2 3 can be adjacent to the fixed edge of the door No. 1 2; a fixing plate 4 is provided between the door No. 1 and the door No. 2 3, and at least two grooves 401 are provided on the front of the fixing plate 4, and a locking mechanism is fixed inside each groove 401 through a support member 13, and a protective cover is provided on the outside for shielding and protection, wherein the support member 13 can be set as a fixing rod, etc., and the locking mechanism is not removable at this time.

[0033] The interlocking mechanism includes a cylindrical piston cylinder 5, a partition 6 is fixedly connected to the center of the piston cylinder 5, and the right and left sides of the partition 6 are connected to the first piston 7 and the second piston 8 through the first spring 11 and the second spring 12, respectively, wherein the bottom surface of the partition 6 is suspended, so that an air column is formed between the first piston 7 and the second piston 9; the first plug rod 9 is horizontally fixed to the right side of the first piston 7, and the second plug rod 10 is horizontally fixed to the left side of the second piston 9. The left and right side walls of the groove 401 are respectively provided with a left through hole and a right through hole for inserting the second plug rod 10 and the first plug rod 9, and the side wall of the free edge of the second door 3 is provided with a positioning hole 301 corresponding to the left through hole.

[0034] In the normal state where the interlocking mechanism is not subjected to any squeezing, the free end of the first plug rod 9 passes through the right through hole, and the second plug rod 10 is not inserted into the left through hole. First, close the second door 3, and then when the first door 2 is closed, the left side wall of the first door 2 will gradually exert a leftward squeezing force on the free end of the first plug rod 9, and then the first piston 7 moves to the left and the first spring 11 is compressed. Due to the existence of the air column, in order to maintain balance, the second piston 8 moves to the left and the second spring 12 stretches, and the second plug rod 10 moves to the left. The free end of the second plug rod 10 passes through the left through hole and is inserted into the positioning hole 301 on the second door 3. At this time, the second door 3 is held by the second plug rod 10. When the first door 2 is locked, the second plug rod 10 will not be separated from the positioning hole 301, and the second door 3 cannot be opened; when the first door 2 is opened first, the left side wall of the first door 2 gradually separates from the free end of the first plug rod 9, and when no force is applied, the first spring 11 and the second spring 12 will return to the normal state, that is, the first spring 11 is extended, and the second spring 12 is shortened, so that the free end of the second plug rod 10 is separated from the positioning hole 301 and returned to the groove 401, and the second door 3 can be opened at this time. Due to the setting of the interlocking mechanism, the staff must open the first door 2 first before opening the second door 3, ensuring that the staff checks and repairs in order and avoiding safety accidents caused by staff's wrong operation.

[0035] In order to further ensure the safety of the staff, the power distribution cabinet 1 may also be provided with a protection door 24, which is arranged at the upper right corner of the No. 1 door 2. A fixing plate 4 and a locking mechanism are also arranged between the protection door 24 and the No. 1 door 2. The working principle is the same as above. Only when the protection door 24 is opened first, the No. 1 door 2 can be opened, and then the No. 2 door 3 can be opened. There is no power transmission line inside the protection door 24, so the opening of the protection door 24 does not involve the risk of electric shock safety.

[0036] Example 2

[0037] like Figure 3-4 , Figure 6-7 As shown, on the basis of embodiment 1, the free ends of the first plug rod 9 and the second plug rod 10 are both threadedly connected with an auxiliary cylinder 14, and a ball 1401 is provided on the side of the auxiliary cylinder 14. According to the actual use, the adjustment cylinder 14 can be appropriately rotated to change the length of the first plug rod 9 or the second plug rod 10 to ensure the normal and effective locking work; wherein the provision of the ball 1401 can make the plug rod contact with the door body more smoothly and stably to prevent it from getting stuck.

[0038] Example 3

[0039] like Figure 3 ~~ Figure 7 As shown, in order to enable the interlocking mechanism to be quickly removed from the groove 401 for easy maintenance, an insertion hole is provided on the upper side of the groove 401 and a sliding groove is provided on the lower side; then the support member 13 is configured to be composed of an upper clamping member 15 and a lower clamping member 16 that are plugged together, and both the upper clamping member 15 and the lower clamping member 16 are provided with an arc groove 22 corresponding to the piston cylinder 5, wherein a positioning groove 23 is provided on the inner wall of the arc groove 22 on the lower clamping member 16, and a positioning block that can be inserted into the positioning groove 23 is provided on the bottom surface of the piston cylinder 5 to ensure that the piston cylinder 5 is placed on the lower clamping member 16 accurately.

[0040] An insert block 17 corresponding to the socket is provided on the upper side of the upper clamp 15, and the insert block 17 consists of a fixed block 1701 and a movable sleeve 1702. The fixed block 1701 is fixedly connected to the upper clamp 15, and the movable sleeve 1702 is movably fitted on the fixed block 1701, and a third spring is connected between the upper side of the fixed block 1701 and the movable sleeve 1702. A control strip 21 is horizontally provided on the outer wall of the movable sleeve 1702, and the movable sleeve 1702 can be moved up and down along the fixed block 1701 by moving the control strip 21 up and down; the middle part of the upper clamp 15 is provided as a convex plate 19, and the bottom surface of the convex plate 19 is provided with a lighting lamp 20, so that the situation inside the piston cylinder 5 can be intuitively and clearly observed when the light is dim; the bottom surface of the lower clamp 16 is provided with a slider 18 corresponding to the slide groove.

[0041] Install the support member 13, insert the positioning block of the piston cylinder 5 into the positioning groove 23 accordingly, and then insert the upper clamp 15 into the lower clamp 16. At this time, the piston cylinder 5 and the upper and lower clamps form a whole; insert the slider 18 along the slide groove, and push the support member 13 horizontally into the inside of the groove 401; when the movable sleeve 1702 is located at the edge of the groove 401, press the movable sleeve 1702 downward so that it can enter the inside of the groove 401, and then continue to push the support member 13 inward until the movable sleeve 1702 pops out into the socket and the free end of the first plug rod 9 pops out into the right through hole, thus completing the installation of the interlocking mechanism, which is stable and not easy to fall off; when the interlocking mechanism needs to be removed, press the control strip 21 downward and press the first plug rod 9 inward while taking out the support member 13, which is simple and quick.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising a reference structure" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. 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.

[0044] Obviously, those skilled in the art can 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 safety interlocking protective door device, comprising a power distribution cabinet, and a No. 1 door and a No. 2 door arranged side by side on the power distribution cabinet, wherein the No. 1 door is located on the right side of the No. 2 door, and is characterized in that: The left sides of the No. 1 door and the No. 2 door are hinged on the power distribution cabinet, and the right sides are set as free edges. A positioning hole is provided on the side wall of the free edge of the No. 2 door; a fixing plate is provided between the No. 1 door and the No. 2 door, and a groove is provided on the fixing plate. A locking mechanism that can act with the No. 1 door and the No. 2 door is fixed in the groove through a support member; The interlocking mechanism includes a piston cylinder, and a partition, a first piston, a second piston, a first plug rod, a second plug rod, a first spring, and a second spring arranged inside the piston cylinder, the partition is fixedly connected to the middle part of the piston cylinder, the first piston and the second piston are arranged on the right and left sides of the partition respectively, one end of the first plug rod and the second plug rod are fixedly connected to the first piston and the second piston respectively, and the other end is a free end, the first spring is fixedly connected between the partition and the first piston, and the second spring is fixedly connected between the partition and the second piston; The left and right side walls of the groove are respectively provided with a left through hole and a right through hole for inserting the second insertion rod and the first insertion rod, and the left through hole is arranged corresponding to the positioning hole; The power distribution cabinet is also provided with a protection door, which is arranged at the upper right corner of door No.

1. A fixing plate and a locking mechanism are also provided between the protection door and door No.

1.

2. The safety interlocking protective door device according to claim 1, characterized in that: The free ends of the first plug rod and the second plug rod are both threadedly connected with auxiliary cylinders, and the side surfaces of the auxiliary cylinders are provided with balls.

3. The safety interlocking protective door device according to claim 1, characterized in that: The upper side of the groove is provided with an inserting hole, and the lower side is provided with a sliding groove.

4. The safety interlocking protective door device according to claim 3, characterized in that: The support member is composed of an upper clamp and a lower clamp, both of which are provided with arc grooves corresponding to the piston cylinder, the upper side of the upper clamp is provided with an insertion block corresponding to the socket, and the bottom surface of the lower clamp is provided with a sliding block corresponding to the slide groove; the insertion block is composed of a fixed block and a movable sleeve, the fixed block is fixedly connected to the upper clamp, the movable sleeve is movably fitted on the fixed block, and a third spring is connected between the upper side of the fixed block and the movable sleeve, and a control strip is horizontally provided on the outer wall of the movable sleeve.

5. The safety interlocking protective door device according to claim 4, characterized in that: The middle part of the upper clamp is set as a convex plate, and the bottom surface of the convex plate is provided with an illumination lamp.

6. The safety interlocking protective door device according to claim 4, characterized in that: A positioning groove is arranged on the inner wall of the arc groove on the lower clamping piece; and a positioning block corresponding to the positioning groove is arranged on the bottom surface of the piston cylinder.

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