Electrical cabinet interlocking mechanism

Abstract

The utility model provides an electrical cabinet interlocking mechanism. Relates to the technical field of power equipment accessories. The electrical cabinet interlocking mechanism comprises a lower cabinet door, an upper cabinet door and a fixing base, the fixing base is located on one side of the lower cabinet door, a blocking piece is fixedly installed at the bottom of the upper cabinet door and makes contact with the back side of the lower cabinet door, a connecting protruding handle is fixedly installed on one side of the upper cabinet door, and the connecting protruding handle makes contact with the back side of the lower cabinet door. A clamping groove is formed in the bottom of the connecting protruding handle, a fixing folded plate is fixedly installed on the top of the fixing base, a linkage rod is slidably installed on the fixing folded plate, a clamping head is fixedly installed at the top end of the linkage rod, the top end of the clamping head extends into the clamping groove, the linkage rod is fixedly sleeved with a pressing plate, and the pressing plate is fixedly connected with the linkage rod. And the pressing plate is positioned above the retention folded plate. According to the utility model, when the lower cabinet door is closed, the upper cabinet door can be closed and locked together.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment accessories, in particular to an electrical cabinet interlocking mechanism. Background Art

[0002] The electrical cabinet is made of steel and is used to protect the normal operation of components. This type of electrical cabinet is basically installed in some large-scale electrical places. Therefore, it is widely used in the chemical industry, environmental protection industry, power system, metallurgical system, industry and transportation industry, etc. During the use of the electrical cabinet, in order to prevent the cabinet door from being opened by mistake and causing some safety accidents, an iron sheet is generally set under the upper cabinet door for restriction and blocking, and the lower cabinet door is covered on this iron sheet. When the lower cabinet door is not opened, the upper cabinet door cannot be easily opened under the limit of the iron sheet. Similarly, when both cabinet doors are open, by closing the lower cabinet door, when it contacts the iron sheet, the upper cabinet can be closed, thereby forming an interlocking form to ensure that each cabinet door can be closed.

[0003] However, when the upper cabinet door is closed, it cannot be fixed only by the card position between the iron sheet and the lower cabinet door. Another locking mechanism must be set to lock the upper cabinet door again. That is, when closing the lower cabinet door, although the upper cabinet door can be closed together with the iron sheet, the upper cabinet door is not locked at this time and needs to be fixed with another locking mechanism. The closing process cannot form a linkage, which increases the cumbersomeness of the operation and may also cause the staff to forget the subsequent locking work.

[0004] Therefore, it is necessary to provide a new electrical cabinet interlocking mechanism to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide an electrical cabinet interlocking mechanism which enables an upper cabinet door to be closed together and locked when a lower cabinet door is closed.

[0006] In order to solve the above technical problems, the electrical cabinet interlocking mechanism provided by the present invention includes: a lower cabinet door, an upper cabinet door and a fixing seat, the fixing seat is located on one side of the lower cabinet door, the bottom of the upper cabinet door is fixedly installed with a blocking piece, the blocking piece is in contact with the back side of the lower cabinet door, a connecting protrusion is fixedly installed on one side of the upper cabinet door, the bottom of the connecting protrusion is provided with an embedding groove, the top of the fixing seat is fixedly installed with a retaining folding plate, a linkage rod is slidably installed on the retaining folding plate, the top of the linkage rod is fixedly installed with an embedding head, the top of the embedding head extends into the embedding groove, and a fixed sleeve is provided on the linkage rod The cam is secured to the bottom of the cam and secured to the bottom of the cam, and the cam has a latching mechanism which allows it to move freely in the cam's interior, thereby allowing the cam to slide freely in the cam's interior.

[0007] Preferably, the linkage mechanism includes a support platform, which is fixedly mounted on the lower cabinet door, and a push rod is slidably mounted on the support platform, the push rod is tangent to the bottom of the fixed seat, a pull plate is fixedly mounted on one end of the push rod, a third return spring is sleeved on the push rod, and both ends of the third return spring are fixedly connected to the pull plate and the support platform respectively.

[0008] Preferably, a limiting plate is fixedly installed on one end of the transverse guide rod away from the lower cabinet door, and a second return spring is sleeved on the transverse guide rod, and both ends of the second return spring are fixedly connected to the connecting plate and the limiting plate respectively.

[0009] Preferably, an upper retaining plate located above the fixing seat is fixedly mounted on the bottom end of the linkage rod, and the bottom of the upper retaining plate is fixedly connected to the connecting piece, which can provide the linkage rod with a lowest position limit.

[0010] Preferably, a pressing tongue is fixedly mounted on a side of the pressing plate away from the upper cabinet door.

[0011] Preferably, a U-shaped pull ring is fixedly installed on the side of the pull plate away from the support.

[0012] Preferably, the spring constants of the first return spring and the third return spring are both greater than the spring constant of the second return spring.

[0013] Compared with the related art, the electrical cabinet interlocking mechanism provided by the present invention has the following advantages:

[0014] Beneficial effects:

[0015] The utility model provides an interlocking mechanism for an electrical cabinet. Through the cooperation between the provided pushing rod and the lower locking plate, the lower locking plate can be pushed by the pushing rod while the lower cabinet door is closed, so that the embedding head can be stuck in the embedding groove, thereby forming an interlocking reaction. There is no need to lock the upper cabinet door separately, which reduces the operating steps. At the same time, the locking of the upper cabinet door will not be forgotten, thereby improving the safety of the electrical cabinet during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural diagram of a preferred embodiment of the electrical cabinet interlocking mechanism provided by the utility model;

[0017] Figure 2 This is a rear view structural diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the upper cabinet door and the connecting protruding handle in the present invention;

[0019] Figure 4 This is a schematic diagram of the connection structure between the support platform and the push rod in the utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the fixing seat and the retaining folding plate in the present invention;

[0021] Figure 6 This is a schematic diagram of the internal structure of the fixing seat in the present utility model;

[0022] Figure 7 It is a bottom view structural diagram of the fixing seat in the present utility model.

[0023] Numbers in the figure: 1. Lower cabinet door; 2. Upper cabinet door; 3. Blocking piece; 4. Fixed seat; 5. Connecting protrusion; 6. Embedding groove; 7. Retaining folding plate; 8. Linking rod; 9. Embedding head; 10. Pressing plate; 11. First return spring; 12. Through groove; 13. Upper locking plate; 14. Connecting piece; 15. Horizontal guide rod; 16. Lower locking plate; 17. Second return spring; 18. Support; 19. Push rod; 20. Pull plate; 21. Third return spring. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0025] Please refer to Figure 1-Figure 7The interlocking mechanism of the electrical cabinet includes: a lower cabinet door 1, an upper cabinet door 2 and a fixing seat 4, the fixing seat 4 is located on one side of the lower cabinet door 1, and a blocking piece 3 is fixedly installed on the bottom of the upper cabinet door 2, and the blocking piece 3 contacts the back side of the lower cabinet door 1, so that a blockage is formed, so that the upper cabinet door 2 cannot be opened alone when the lower cabinet door 1 is not opened, thereby improving the safety protection performance, and a connecting protrusion 5 is fixedly installed on one side of the upper cabinet door 2, and the bottom of the connecting protrusion 5 is provided with an embedding groove 6, and a fixing folding plate 7 is fixedly installed on the top of the fixing seat 4, and a linkage rod 8 is slidably installed on the fixing folding plate 7, and an embedding head 9 is fixedly installed on the top of the linkage rod 8, and the top of the embedding head 9 extends into the embedding groove 6, so that a locking can be provided for the upper cabinet door 2, and a pressing plate 10 is fixedly sleeved on the linkage rod 8, and a pressing tongue is fixedly installed on the side of the pressing plate 10 away from the upper cabinet door 2, which is convenient for manual pressing, and the pressing plate 10 is located above the retaining folding plate 7, and a first return spring 11 is sleeved on the linkage rod 8, the top of which is fixedly connected to the pressing plate 10, and the bottom of which is fixedly connected to the retaining folding plate 7. A through slot 12 is provided on the fixing seat 4, and a connecting piece 14 is fixedly installed on the bottom end of the linkage rod 8. The bottom of the connecting piece 14 extends into the through slot 12, and a transverse guide rod 15 is slidably installed on the connecting piece 14. The end of the transverse guide rod 15 away from the lower cabinet door 1 is fixedly installed with a limit piece, and a second return spring 17 is sleeved on the transverse guide rod 15. The two ends of the second return spring 17 are respectively fixedly connected to the connecting piece 14 and the limit piece. A lower card plate 16 is fixedly installed on the end of the transverse guide rod 15 close to the lower cabinet door 1. The lower card plate 16 is in the initial state and conflicts with the inner wall of one side of the through slot 12, and the second return spring 17 is in a stretched state. A linkage mechanism is provided on the lower cabinet door 1 for pushing the lower card plate 16.

[0026] The above-mentioned linkage mechanism includes a support platform 18, which is fixedly mounted on the lower cabinet door 1, and a push rod 19 is slidably mounted on the support platform 18. The push rod 19 is tangent to the bottom of the fixed seat 4, and a pull plate 20 is fixedly mounted on one end of the push rod 19, and a U-shaped pull ring is fixedly mounted on the side of the pull plate 20 away from the support platform 18 to facilitate people pulling. A third return spring 21 is sleeved on the push rod 19, and its two ends are fixedly connected to the pull plate 20 and the support platform 18 respectively.

[0027] In this method, in order to prevent the first return spring 11 from being compressed too much, an upper retaining plate 13 located above the fixed seat 4 is fixedly installed at the bottom end of the linkage rod 8. The bottom of the upper retaining plate 13 is fixedly connected to the connecting piece 14, which can give the linkage rod 8 a minimum position limit. When it drops to contact the top of the fixed seat 4, the linkage rod 8 will no longer drop.

[0028] The spring constants of the first return spring 11 and the third return spring 21 are both greater than the spring constant of the second return spring 17 .

[0029] The working principle of the electrical cabinet interlocking mechanism provided by the utility model is as follows:

[0030] When you need to open the lower cabinet door 1, just unlock it with the key and pull it open;

[0031] When it is necessary to open both the lower cabinet door 1 and the upper cabinet door 2, the lower cabinet door 1 is opened first. At this time, the lower cabinet door 1 is not in contact with the blocking piece 3, and the pushing rod 19 is not tangent to the bottom of the fixing seat 4. Then the pressing plate 10 is pressed downward, and the linkage rod 8 brings the embedded head 9 down. At this time, the first return spring 11 is compressed. When the upper locking plate 13 drops to contact the top of the fixing seat 4, the linkage rod 8 no longer drops, and the embedded head 9 is completely moved out of the embedded groove 6. At the same time, the lower locking plate 16 is moved out of the through groove 12. In an instant, the second return spring 17 rebounds and directly pushes the lower locking plate 16 out. At this time, the lower locking plate 16 contacts the bottom of the fixing seat 4 to form a limit, and then the pressing plate 10 is released to directly open the upper cabinet door 2.

[0032] When the lower door 1 and the upper door 2 need to be closed later, the pull plate 20 is first pulled to pull the push rod 19 to a state where it does not protrude from the lower door 1. At this time, the third return spring 21 is in a stretched state, and then the lower door 1 is closed. During the closing process, the lower door 1 contacts the blocking piece 3 on the upper door 2, so that the upper door 2 can be closed together. Until the lower door 1 and the upper door 2 contact the cabinet shell of the electrical cabinet, the lower door 1 is locked with the key, and then the pull plate 20 is released and the pull plate 20 is pulled. The extended third return spring 21 directly pulls back, causing the push rod 19 to rebound. When the push rod 19 contacts the lower locking plate 16, it will push it. When the lower locking plate 16 is no longer in contact with the bottom of the fixing seat 4, the compressed first return spring 11 releases its elastic force, directly driving the linkage rod 8 upward together with the embedding head 9, and finally bringing the embedding head 9 into the embedding groove 6. At this time, the lower locking plate 16 again contacts the inner wall of one side of the through groove 12, and the second return spring 17 returns to the stretched state.

[0033] Compared with the related art, the electrical cabinet interlocking mechanism provided by the present invention has the following advantages:

[0034] Beneficial effects:

[0035] The present invention provides an interlocking mechanism for an electrical cabinet. By cooperating with the push rod 19 and the lower locking plate 16, the push rod 19 can be used to push the lower locking plate 16 while closing the lower cabinet door 1, so that the locking head 9 can be locked into the locking groove 6, thereby forming an interlocking reaction. There is no need to lock the upper cabinet door 2 separately, which reduces the operating steps. At the same time, the locking of the upper cabinet door 2 will not be forgotten, thereby improving the safety of the electrical cabinet during use.

[0036] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electrical cabinet interlocking mechanism, comprising a lower cabinet door, an upper cabinet door and a fixing seat, wherein the fixing seat is located on one side of the lower cabinet door, characterized in that: The bottom of the upper cabinet door is fixedly installed with a blocking piece, and the blocking piece contacts the back side of the lower cabinet door. A connecting protrusion is fixedly installed on one side of the upper cabinet door, and an embedding groove is provided at the bottom of the connecting protrusion. A retaining folding plate is fixedly installed on the top of the fixing seat, and a linkage rod is slidably installed on the retaining folding plate. The top of the linkage rod is fixedly installed with an embedding head, and the top of the embedding head extends into the embedding groove. A pressing plate is fixedly sleeved on the linkage rod, and the pressing plate is located above the retaining folding plate. A first return spring is provided, the top end of the first return spring is fixedly connected to the pressing plate, and the bottom end of the first return spring is fixedly connected to the retaining folding plate. A through slot is provided on the fixing seat, and a connecting piece is fixedly installed on the bottom end of the linkage rod. The bottom of the connecting piece extends into the through slot, and a transverse guide rod is slidably installed on the connecting piece. A lower locking plate is fixedly installed on one end of the transverse guide rod close to the lower cabinet door, and the lower locking plate is in conflict with an inner wall of one side of the through slot. A linkage mechanism is provided on the lower cabinet door for pushing the lower locking plate.

2. The electrical cabinet interlocking mechanism according to claim 1, characterized in that: The linkage mechanism includes a support platform, which is fixedly mounted on the lower cabinet door. A push rod is slidably mounted on the support platform, and the push rod is tangent to the bottom of the fixed seat. A pull plate is fixedly mounted on one end of the push rod, and a third return spring is sleeved on the push rod. The two ends of the third return spring are fixedly connected to the pull plate and the support platform respectively.

3. The electrical cabinet interlocking mechanism according to claim 1, characterized in that: A limiting piece is fixedly mounted on one end of the transverse guide rod away from the lower cabinet door, and a second return spring is sleeved on the transverse guide rod. Two ends of the second return spring are fixedly connected to the connecting piece and the limiting piece respectively.

4. The electrical cabinet interlocking mechanism according to claim 1, characterized in that: An upper retaining plate located above the fixing seat is fixedly mounted on the bottom end of the linkage rod, and the bottom of the upper retaining plate is fixedly connected to the connecting piece, which can limit the linkage rod to a lowest position.

5. The electrical cabinet interlocking mechanism according to claim 1, characterized in that: A pressing tongue is fixedly mounted on one side of the pressing plate away from the upper cabinet door.

6. The electrical cabinet interlocking mechanism according to claim 2, characterized in that: A U-shaped pull ring is fixedly installed on one side of the pull plate away from the support platform.

7. The electrical cabinet interlocking mechanism according to claim 2, characterized in that: The spring constants of the first return spring and the third return spring are both greater than the spring constant of the second return spring.

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