Upper and lower door interlocking structure
By employing a design that combines a sliding groove and a damper with a spring in the AC metal-enclosed switch cabinet, the smooth sliding limit of the upper and lower doors is achieved, solving the problems of high failure rate and collision caused by complex structures in existing technologies, and improving operational reliability and door lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-07
AI Technical Summary
The existing interlocking structure of the upper and lower doors of the AC metal-enclosed switchgear is complex, resulting in a high failure rate during operation. Furthermore, the upper and lower doors are prone to collision when opening and closing, which affects their lifespan.
The design employs a combination of a sliding groove, a damper, and a spring. The sliding limit of the upper and lower doors is achieved through the movement of the threaded rod and the locking block, while the damper provides buffering to ensure smooth opening and closing of the doors.
It simplifies the operation process of opening and closing the door, reduces the failure rate, prevents door collisions, and extends the service life.
Smart Images
Figure CN224097244U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of alternating current metal-enclosed switchgear, especially to an upper and lower door interlocking structure. BACKGROUND
[0002] Alternating current metal-enclosed switchgear has been widely used for distributing electric power energy, in order to prevent operating personnel from mistakenly entering the live switch cabinet, it is required that the upper and lower doors of the switch cabinet must be strictly closed and opened according to the specified procedure. However, the upper and lower door interlocking structure of the existing alternating current metal-enclosed switchgear is relatively complex, resulting in high operation failure rate.
[0003] The existing patent No. CN206076818U discloses an upper and lower door interlocking structure of alternating current metal-enclosed switchgear, the lock plate vertically penetrates the middle partition plate parallel to the spatial horizontal direction, and a tension spring parallel to the lock plate is connected to the lower end of the lock plate; a first through hole and a second through hole arranged in the spatial vertical direction are arranged on the lock plate; a lock hook with the hook groove facing the lock plate is arranged above the lock plate; a first lock tongue with a tapered surface is fixed to the inner surface of the upper door of the alternating current metal-enclosed switchgear, penetrates the upper cabinet body of the alternating current metal-enclosed switchgear, and extends into the first through hole, the tapered surface of the first lock tongue is in abutment with the inner hole surface of the first through hole, and the upper end of the lock plate is lifted into the hook groove of the lock hook; and a second lock tongue penetrates the lower cabinet body of the alternating current metal-enclosed switchgear and enters the second through hole.
[0004] The above-mentioned scheme solves the technical problem of simplifying the upper and lower door interlocking structure of the switch cabinet, has the advantages of low use failure rate, etc., but cannot limit the opening and closing of the doors when the upper and lower doors are opened and closed, so that the lower door cannot be continuously opened, and the upper door is prone to collision with the surface of the outer frame when the upper door is opened and closed, resulting in short service life of the upper door. UTILITY MODEL CONTENTS
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an upper and lower door interlocking structure, comprising: an outer frame, a sliding groove one is formed in the inner wall of the outer frame, a sliding groove two is formed in the inner wall of the outer frame, an upper door is slidably connected in the sliding groove two, a lower door is slidably connected in the sliding groove one, a circular hole is formed in the outer surface of the lower door, two spring twos are fixedly connected to the inner wall of the outer frame, two dampers are slidably connected to the inner wall of the outer frame, a stop block is fixedly connected to the top end of each of the two spring twos and the two dampers, and the upper door is located on the outer surface of the two stop blocks.
[0006] The technical effect of the further scheme is that the upper door is in contact with the surface of the block, and the spring two and the damper cooperate to buffer the upper door, preventing the upper door from colliding with the inner wall of the outer frame.
[0007] As a preferred embodiment, the outer surface of the outer frame is fixedly connected with an L-shaped block, the inside of the L-shaped block movably embeds a threaded rod, the inside of the L-shaped block movably embeds a limiting rod, one end of the threaded rod is rotatably connected with a clamping block through a bearing, and the outer surface of the upper door is provided with a square groove.
[0008] The technical effect of the further scheme is that the threaded rod is moved forward and backward in the inside of the L-shaped block, the clamping block is separated from the inside of the square groove under the limiting of the limiting rod, the upper door can slide in the inside of the sliding groove one, and the upper door can be opened after sliding.
[0009] As a preferred embodiment, the clamping block is movably embedded in the inside of the square groove, the outer surface of the outer frame is fixedly connected with a limiting block, the outer surface of the limiting block is fixedly connected with a U-shaped block, the inside of the U-shaped block movably embeds a pull rod, one end of the pull rod is fixedly connected with a limiting circular block, the outer surface of the limiting circular block is fixedly connected with a movable rod, and one end of the movable rod is fixedly connected with a cylinder.
[0010] The technical effect of the further scheme is that the pull rod is pulled to drive the limiting circular block to move, the limiting circular block drives the movable rod to move, the movable rod drives the cylinder to separate from the inside of the limiting block, the lower door slides in the inside of the sliding groove one, and the lower half of the outer frame is closed after sliding, so that the lower door and the upper door can be effectively limited.
[0011] As a preferred embodiment, the cylinder is movably embedded in the inside of the circular hole, and the outer surface of the limiting circular block is fixedly connected with a spring one.
[0012] The technical effect of the further scheme is that the cylinder is clamped in the inside of the circular hole to effectively limit the lower door, and the cylinder is clamped in the inside of the circular hole under the limiting action of the spring one.
[0013] Compared with the prior art, the utility model has the advantages and positive effects that,
[0014] 1. In use, the threaded rod is moved forward and backward in the inside of the L-shaped block, the clamping block is separated from the inside of the square groove under the limiting of the limiting rod, the upper door can slide in the inside of the sliding groove one, and the upper door can be opened after sliding, the surface of the upper door is in contact with the surface of the block, the spring two and the damper cooperate to buffer the upper door, the clamping block is clamped in the inside of the square groove to limit the upper door.
[0015] 2. The utility model discloses, in use, pull the pull rod and drive the limiting round block to move, the limiting round block drives the movable rod to move to move the movable rod and drive the cylinder to separate from the inside of the limiting block, the lower part slides in the inside of the sliding slot no. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A three-dimensional structure schematic diagram of the upper and lower door interlocking structure is provided for the utility model;
[0017] Figure 2 An A place enlarged structure schematic diagram of the upper and lower door interlocking structure is provided for the utility model;
[0018] Figure 3 A side view structure schematic diagram of the upper and lower door interlocking structure is provided for the utility model;
[0019] Figure 4 A rear view structure schematic diagram of the upper and lower door interlocking structure is provided for the utility model.
[0020] Legend: 101, outer frame, 102, sliding slot one, 103, upper door, 104, square groove, 105, L-shaped block, 106, threaded rod, 107, limiting rod, 108, clamping block, 109, lower door, 110, round hole, 111, limiting block, 112, U-shaped block, 113, pull rod, 114, limiting round block, 115, spring one, 116, movable rod, 117, cylinder, 118, sliding slot two, 119, stop block, 120, spring two, 121, damper. DETAILED DESCRIPTION
[0021] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further explained below in conjunction with the drawings and examples. It should be explained that, in the case of no conflict, the embodiment of the application and the features in the embodiment can be combined with each other.
[0022] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiment disclosed in the following disclosure.
[0023] Please refer to Figures 1 to 4The utility model provides a kind of upper and lower door interlocking structure, comprising: outer frame 101, the inner wall of outer frame 101 is equipped with sliding slot one 102, the inner wall of outer frame 101 is equipped with sliding slot two 118, the inside sliding connection of sliding slot two 118 has upper door 103, the inside sliding connection of sliding slot one 102 has lower door 109, the outer surface of lower door 109 is equipped with round hole 110, the inner wall of outer frame 101 is fixedly connected with two spring two 120, the inner wall of outer frame 101 is slidingly connected with two damper 121, two spring two 120 and the top of two damper 121 are all fixedly connected with stopper 119, upper door 103 is located the outer surface of two stoppers 119, upper door 103 and the surface of stopper 119 contact, buffer can be carried out to upper door 103 under the cooperation of spring two 120 and damper 121, prevent upper door 103 and the inner wall of outer frame 101 contact after collision.
[0024] As Figures 1 to 4 As shown in the utility model discloses a kind of upper and lower door interlocking structure, comprising: outer frame 101, the outer surface of outer frame 101 is fixedly connected with L type block 105, L type block 105 is movably embedded with threaded rod 106, L type block 105 is movably embedded with limit rod 107, one end of threaded rod 106 is rotatably connected with clamping block 108 by bearing, the outer surface of upper door 103 is equipped with square groove 104, by rotating threaded rod 106 and moving in the inside of L type block 105, at the limit of limit rod 107 at this time make clamping block 108 from the inside of square groove 104 disengage, at this time upper door 103 can be slid in the inside of sliding slot one 102, after sliding, can separate and open.
[0025] As Figures 1 to 4 As shown in the utility model discloses a kind of upper and lower door interlocking structure, comprising: outer frame 101, the outer surface of outer frame 101 is fixedly connected with L type block 105, L type block 105 is movably embedded with threaded rod 106, L type block 105 is movably embedded with limit rod 107, one end of threaded rod 106 is rotatably connected with clamping block 108 by bearing, the outer surface of upper door 103 is equipped with square groove 104, by rotating threaded rod 106 and moving in the inside of L type block 105, at the limit of limit rod 107 at this time make clamping block 108 from the inside of square groove 104 disengage, at this time upper door 103 can be slid in the inside of sliding slot one 102, after sliding, can separate and open.
[0026] As Figures 1 to 4 As shown in the utility model discloses a kind of upper and lower door interlocking structure, comprising: outer frame 101, the outer surface of outer frame 101 is fixedly connected with L type block 105, L type block 105 is movably embedded with threaded rod 106, L type block 105 is movably embedded with limit rod 107, one end of threaded rod 106 is rotatably connected with clamping block 108 by bearing, the outer surface of upper door 103 is equipped with square groove 104, by rotating threaded rod 106 and moving in the inside of L type block 105, at the limit of limit rod 107 at this time make clamping block 108 from the inside of square groove 104 disengage, at this time upper door 103 can be slid in the inside of sliding slot one 102, after sliding, can separate and open.
[0027] Working principle: By rotating the threaded rod 106, the L-shaped block 105 moves back and forth within it. At this time, the limiting rod 107 causes the locking block 108 to disengage from the square groove 104. The upper part 103 can then slide within the sliding groove 102, opening the upper section. Simultaneously, the upper part 103 contacts the surface of the stop block 119. The cooperation of the spring 120 and the damper 121 buffers the upper part 103. The locking block 108, positioned within the square groove 104, provides support. The upper part 103 is limited, and at the same time, the pull rod 113 is pulled to move the limiting block 114. At this time, the limiting block 114 moves the movable rod 116. The movable rod 116 moves the cylinder 117 away from the inside of the limiting block 111. At this time, the lower part 109 slides inside the slide groove 102. After sliding, the lower half of the outer frame 101 can be closed. This device can effectively limit the lower part 109 and the upper part 103, so that the lower part 109 and the upper part 103 are in the open and closed state.
[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A door interlocking structure, comprising: The outer frame (101) is characterized in that the inner wall of the outer frame (101) is provided with a first sliding groove (102) and a second sliding groove (118). The inner wall of the second sliding groove (118) is slidably connected to an upper part (103), and the inner wall of the first sliding groove (102) is slidably connected to a lower part (109). The outer surface of the lower part (109) is provided with a round hole (110). The inner wall of the outer frame (101) is fixedly connected to two second springs (120), and the inner wall of the outer frame (101) is slidably connected to two dampers (121). The top ends of the two second springs (120) and the two dampers (121) are fixedly connected to a stop block (119). The upper part (103) is located on the outer surface of the two stop blocks (119).
2. The interlocking structure for upper and lower doors according to claim 1, characterized in that: An L-shaped block (105) is fixedly connected to the outer surface of the outer frame (101). A threaded rod (106) is movably embedded inside the L-shaped block (105), and a limiting rod (107) is movably embedded inside the L-shaped block (105).
3. The interlocking structure for upper and lower doors according to claim 2, characterized in that: One end of the threaded rod (106) is rotatably connected to a locking block (108) via a bearing, and a square groove (104) is provided on the outer surface of the upper part (103).
4. The interlocking structure for upper and lower doors according to claim 3, characterized in that: The card block (108) is movably embedded inside the square groove (104), and the outer surface of the outer frame (101) is fixedly connected to the limiting block (111), and the outer surface of the limiting block (111) is fixedly connected to the U-shaped block (112).
5. The interlocking structure for upper and lower doors according to claim 4, characterized in that: A pull rod (113) is movably embedded inside the U-shaped block (112), and one end of the pull rod (113) is fixedly connected to a limiting round block (114).
6. The interlocking structure for upper and lower doors according to claim 5, characterized in that: The outer surface of the limiting block (114) is fixedly connected to a movable rod (116), and one end of the movable rod (116) is fixedly connected to a cylinder (117).
7. The interlocking structure for upper and lower doors according to claim 6, characterized in that: The cylinder (117) is movably embedded inside the circular hole (110), and a spring (115) is fixedly connected to the outer surface of the limiting block (114).
Citation Information
Patent Citations
Exchange metal closed switch cabinet's last xiamen interlocking structure
CN206076818U