Hydraulic fixing device for door leaf of metro protective airtight partition door

Abstract

The utility model discloses a door leaf hydraulic fixing device of a metro protective airtight partition door. The door leaf hydraulic fixing device comprises a pull rod oil cylinder, a connecting rod, a plug pin, a limiting rod and a base used for being matched with the plug pin. The pull rod cylinder is fixedly mounted on the back of the door leaf; the bolt is vertically and slidably connected to the back face of the door leaf, the connecting rod is vertically and fixedly connected to the upper end of the bolt, a first inserting groove is formed in the lower side of the connecting rod, the upper end of an output shaft of the pull rod oil cylinder is inserted into the first inserting groove, and a limiting groove is formed in one side of the upper end of the output shaft of the pull rod oil cylinder. And at least part of the spring is embedded into the limiting groove. According to the door leaf hydraulic fixing device of the metro protective airtight partition door, when a pull rod oil cylinder breaks down, a bolt can be pulled up manually and conveniently, and the door is closed conveniently and rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of partition doors, in particular to a hydraulic fixing device for the door leaf of a subway protective airtight partition door. Background Art

[0002] For the hydraulic fixing device of the door leaf of a subway protective airtight partition door, referring to the existing patent with the application number of CN104454804A, it is mainly used to prevent the swinging of the opened door leaf, which affects the safety of subway operation. The existing hydraulic fixing device for the door leaf includes a fixed base, a bolt and a pull rod oil cylinder. The pull rod oil cylinder is vertically installed on the lower side of the door leaf. The upper end of the bolt is fixedly connected with the upper end of the pull rod oil cylinder. The fixed base is installed on the ground. After the door leaf is opened, the pull rod oil cylinder drives the bolt to insert downward into the fixed base, thereby preventing the door leaf from swinging.

[0003] The existing hydraulic fixing device drives the bolt through the pull rod oil cylinder. When it is necessary to close the door leaf, the pull rod oil cylinder drives the bolt to pull out upward from the fixed base, and then closes the door leaf. When the pull rod oil cylinder fails, it is difficult to manually pull up the bolt, which affects the closing speed of the door leaf. Summary of the Utility Model

[0004] In order to solve the defect that when the pull rod oil cylinder of the existing hydraulic fixing device fails, it is difficult to manually pull up the bolt, which affects the closing of the door leaf, the utility model provides a hydraulic fixing device for the door leaf of a subway protective airtight partition door. When the pull rod oil cylinder fails, the bolt can be manually pulled up conveniently to realize convenient door closing.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A hydraulic fixing device for the door leaf of a subway protective airtight partition door includes: a pull rod oil cylinder, a connecting rod, a bolt, a limiting rod and a base for cooperating with the bolt; the pull rod oil cylinder is fixedly installed on the back of the door leaf; the bolt is vertically slidably connected to the back of the door leaf. The connecting rod is vertically and fixedly connected to the upper end of the bolt. A first slot is arranged on the lower side of the connecting rod. The upper end of the output shaft of the pull rod oil cylinder is inserted into the first slot, and a limiting slot is arranged on one side. A second slot penetrating through to the first slot is arranged on the end face of the connecting rod. The limiting rod is inserted into the second slot and at least partially embedded in the limiting slot.

[0007] Through the above setting, the output shaft of the pull rod oil cylinder and the connecting rod are detachably connected. When the pull rod oil cylinder fails, the connection between the pull rod oil cylinder and the connecting rod can be quickly manually separated, and then the bolt can be quickly lifted to prevent delaying the closing of the door leaf.

[0008] Further, the hydraulic fixing device further includes an elastic body, and the elastic body is installed between the connecting rod and the limiting rod.

[0009] Through the above setting, the stability of the limiting rod in the limiting slot is increased.

[0010] Furthermore, one end of the limiting rod away from the limiting groove protrudes from the end face of the connecting rod. The elastic body is arranged as a spring. One end of the spring is connected to the end face of the connecting rod, and the other end of the spring is connected to the limiting rod.

[0011] Furthermore, an annular protrusion is arranged along the outer periphery of the outer end of the limiting rod. The spring is sleeved on the limiting rod, and one end of the spring away from the connecting rod is connected to the annular protrusion.

[0012] Through the above settings, the stability of the spring is increased.

[0013] Furthermore, the hydraulic fixing device further includes a bushing. The bushing is installed on the back of the door leaf. The bolt passes through the bushing and is slidably connected to the bushing.

[0014] Through the above settings, the bolt is slidably connected to the back of the door leaf through the bushing.

[0015] Furthermore, the cross-section of the bolt is circular. The hydraulic fixing device further includes a support block. The support block is fixedly installed on the back of the door leaf and is located above the connecting rod. The support block is used to support the connecting rod so that the lower end of the bolt is higher than the upper side of the base.

[0016] Through the above settings, the bolt can rotate around its own axis; the connecting rod can rest on the support block to prevent the bolt from sliding down, thereby preventing the bolt from colliding with the door frame or the subway track on the ground when the door leaf is closed.

[0017] Furthermore, the lower side of the support block can abut against the connecting rod to prevent the bolt from being pulled out of the bushing.

[0018] Furthermore, a groove is arranged on the upper side of the support block. When the support block supports the connecting rod, the lower side of the connecting rod is embedded in the groove.

[0019] Through the above settings, it is prevented that when the connecting rod rests on the support block, the connecting rod slides off the edge of the support block.

[0020] Furthermore, the base includes a bottom plate and a limiting plate. The bottom plate is used to be installed on the ground. The limiting plate is vertically and fixedly connected to the upper side of the bottom plate. A limiting surface that can abut against the lower end of the bolt is arranged on one side of the limiting plate.

[0021] Furthermore, a chamfer is arranged along the circumferential direction at the lower end of the bolt. Description of the Drawings

[0022] Figure 1 Schematic diagram of the hydraulic fixing device of the embodiment installed on the door leaf.

[0023] Figure 2 Schematic diagram after the door leaf of the embodiment is opened.

[0024] Figure 3 For Figure 1 Enlarged view of part A.

[0025] Figure 4 Schematic diagram of the downward movement of the bolt in the embodiment.

[0026] Figure 5 Schematic diagram of the connecting rod resting on the support block in the embodiment. Specific embodiments

[0027] The technical solution of the present utility model will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0028] As Figures 1 to 5 shown, a hydraulic fixing device for the door leaf of a subway anti-seepage and airtight partition door includes: a tie rod oil cylinder 3, a connecting rod 4, a bolt 5, a limit rod 6, and a base 7 for cooperating with the bolt 5; the tie rod oil cylinder 3 is fixedly installed on the back of the door leaf; the bolt 5 is vertically slidably connected to the back of the door leaf, the connecting rod 4 is vertically fixedly connected to the upper end of the bolt 5, a first slot 41 is provided on the lower side of the connecting rod 4, the upper end of the output shaft of the tie rod oil cylinder 3 is inserted into the first slot 41, and a limit slot 31 is provided on one side, a second slot 42 penetrating through to the first slot 41 is provided on the end face of the connecting rod 4, the limit rod 6 is inserted into the second slot 42 and at least partially embedded in the limit slot 31.

[0029] Through the above settings, the output shaft of the tie rod oil cylinder 3 and the connecting rod 4 are detachably connected. When the tie rod oil cylinder 3 fails, the connection between the tie rod oil cylinder 3 and the connecting rod 4 can be quickly manually separated, and then the bolt 5 can be quickly lifted to prevent delaying the closing of the door leaf.

[0030] The hydraulic fixing device of the present application is mainly used for the partition door in the subway track area. When the door leaf of the partition door is opened, the subway can pass through the partition door frame; normally, the limit rod 6 passes through the second slot 42 and is inserted into the limit slot 31, and the limit rod 6 prevents the output shaft of the tie rod oil cylinder 3 from moving up and down in the first slot 41, that is, preventing the output shaft from being pulled out of the first slot 41; the tie rod oil cylinder 3 can drive the bolt 5 to move downward to cooperate with the base 7 through the limit rod 6 and the connecting rod 4, as Figure 4 shown, blocked by the base 7, the door leaf cannot be closed, preventing potential safety hazards to train operation; at this time, when the door leaf needs to be closed, the output shaft of the tie rod oil cylinder 3 moves upward, as Figure 3 shown, the output shaft drives the bolt 5 to move upward through the connecting rod 4. When the lower end of the bolt 5 is higher than the upper side of the base 7, the bolt 5 is disengaged from the base 7, and the door leaf can be closed; in case of an accident, for example, when the tie rod oil cylinder 3 fails when the bolt 5 needs to be driven upward, at this time, the limit rod 6 can be manually pulled outwards. After the end of the limit rod 6 leaves the limit slot 31, after losing the obstruction of the limit rod 6, the bolt 5 can be manually lifted upward. The output shaft of the tie rod oil cylinder 3 does not move, and the connecting rod 4 moves upward synchronously with the bolt 5, and the connecting rod 4 and the tie rod oil cylinder 3 are disengaged, as Figure 5As shown, during this process, the pull rod oil cylinder 3 does not obstruct the manual lifting bolt 5, facilitating the manual emergency lifting of the bolt 5.

[0031] As an implementation manner, the hydraulic fixing device further includes an elastomer 8, and the elastomer 8 is installed between the connecting rod 4 and the limiting rod 6.

[0032] Through the above settings, the stability of the limiting rod 6 in the limiting groove 31 is increased.

[0033] When the limiting rod 6 of the hydraulic fixing device of the present application is inserted into the limiting groove 31, the elastomer 8 exerts a force on the limiting rod 6 towards the limiting groove 31 to prevent the limiting rod 6 from accidentally falling out of the limiting groove 31; when the limiting rod 6 is pulled outwards, the limiting rod 6 deforms, and after the output shaft of the pull rod oil cylinder 3 is pulled out from the first slot 41 and then released, the elastomer 8 drives the limiting rod 6 to automatically reset.

[0034] As an implementation manner, one end of the limiting rod 6 away from the limiting groove 31 protrudes from the end face of the connecting rod 4, and the elastomer 8 is set as a spring. One end of the spring is connected to the end face of the connecting rod 4, and the other end of the spring is connected to the limiting rod 6.

[0035] As an implementation manner, an annular protrusion 61 is provided along the outer periphery of the outer end of the limiting rod 6, the spring is sleeved on the limiting rod 6, and the end of the spring away from the connecting rod 4 is connected to the annular protrusion 61.

[0036] Through the above settings, the stability of the spring is increased.

[0037] When the spring of the present application is sleeved on the limiting rod 6, the spring is substantially coaxial with the limiting rod 6. When the spring expands and contracts, it exerts a coaxial force on the limiting rod 6, and the limiting rod 6 limits the spring to only deform axially, preventing the spring from losing stability on the outside.

[0038] As an implementation manner, the hydraulic fixing device further includes a bushing 9, and the bushing 9 is installed on the back of the door leaf. The bolt 5 passes through the bushing 9 and is slidably connected to the bushing 9.

[0039] Through the above settings, the bolt 5 is slidably connected to the back of the door leaf through the bushing 9.

[0040] As an implementation manner, the cross-section of the bolt 5 is circular. The hydraulic fixing device further includes a support block 10, and the support block 10 is fixedly installed on the back of the door leaf and is located above the connecting rod 4. The support block 10 is used to support the connecting rod 4 so that the lower end of the bolt 5 is higher than the upper side of the base 7.

[0041] Through the above settings, the bolt 5 can rotate around its own axis; the connecting rod 4 can rest on the support block 10 to prevent the bolt 5 from sliding down, thereby preventing the bolt 5 from colliding with the door frame or the subway track on the ground when the door leaf is closed.

[0042] When the bolt 5 of the present application moves to the lower side, there is a gap between the connecting rod 4 and the support block 10. When the pull rod oil cylinder 3 fails and the bolt 5 is pulled upward, the connecting rod 4 approaches the lower side of the support block 10. Rotate the connecting rod 4 outward around the axis of the bolt 5 to make the connecting rod 4 leave the lower side of the support block 10, and then continue to lift the connecting rod 4 and the bolt 5 outward. After the connecting rod 4 moves above the support block 10, rotate the connecting rod 4 inward around the axis of the bolt 5. After the connecting rod 4 rotates to directly above the support block 10, when released, under the action of gravity, the connecting rod 4 rests on the upper side of the support block 10 to prevent the bolt 5 from falling.

[0043] As an implementation manner, the lower side of the support block 10 can abut against the connecting rod 4 to prevent the bolt 5 from being pulled out of the bushing 9.

[0044] As an implementation manner, a groove 11 is provided on the upper side of the support block 10. When the support block 10 supports the connecting rod 4, the lower side of the connecting rod 4 is embedded in the groove 11.

[0045] Through the above settings, when the connecting rod 4 rests on the support block 10, it is prevented from slipping off the edge of the support block 10.

[0046] As an implementation manner, the base 7 includes a bottom plate 71 and a limiting plate 72. The bottom plate 71 is used for installation on the ground, and the limiting plate 72 is vertically and fixedly connected to the upper side of the bottom plate 71. A limiting surface 721 that can abut against the lower end of the bolt 5 is provided on one side of the limiting plate 72.

[0047] The bottom plate 71 of the present application is installed on the ground by bolts. After the door leaf is opened, the bolt 5 passes above the limiting plate 72 and moves to the back of the limiting plate 72. After the bolt 5 moves downward, the lower end of the bolt 5 is lower than the upper side of the limiting plate 72, and the limiting surface 721 of the limiting plate 72 faces the bolt 5 to block the bolt 5 from moving back, thereby preventing the door leaf from closing.

[0048] As an implementation manner, a chamfer 51 is provided along the circumferential direction at the lower end of the bolt 5.

[0049] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A hydraulic fixing device for a subway protective closed partition door leaf, characterized in that: include: A tie rod cylinder, which is fixedly mounted on the back of the door leaf; A connecting rod, a latch and a limiting rod, wherein the latch is vertically slidably connected to the back of the door leaf, the connecting rod is vertically fixedly connected to the upper end of the latch, a first slot is provided on the lower side of the connecting rod, the upper end of the output shaft of the pull rod oil cylinder is inserted into the first slot, and a limiting slot is provided on one side, a second slot is provided on the end surface of the connecting rod that penetrates the first slot, the limiting rod is inserted into the second slot, and is at least partially embedded in the limiting slot; Base for mating with latch.

2. A hydraulic fixing device for a subway protective airtight partition door leaf according to claim 1, characterized in that: The hydraulic fixing device further comprises an elastic body, and the elastic body is installed between the connecting rod and the limiting rod.

3. The hydraulic fixing device for subway protective airtight partition door leaf according to claim 2 is characterized in that: One end of the limiting rod away from the limiting groove protrudes from the end surface of the connecting rod, and the elastic body is configured as a spring, one end of the spring is connected to the end surface of the connecting rod, and the other end of the spring is connected to the limiting rod.

4. A hydraulic fixing device for a subway protective airtight partition door leaf according to claim 3, characterized in that: The outer end of the limiting rod is provided with an annular protrusion along the outer circumference, the spring is sleeved on the limiting rod, and one end of the spring away from the connecting rod is connected to the annular protrusion.

5. The hydraulic fixing device for subway protective airtight partition door leaf according to claim 1 is characterized in that: The hydraulic fixing device also includes a bushing, which is installed on the back of the door leaf. The latch passes through the bushing and is slidably connected to the bushing.

6. A hydraulic fixing device for a subway protective airtight partition door leaf according to claim 5, characterized in that: The cross section of the latch is circular, and the hydraulic fixing device also includes a support block, which is fixedly installed on the back of the door leaf and located above the connecting rod. The support block is used to support the connecting rod so that the lower end of the latch is higher than the upper side of the base.

7. A hydraulic fixing device for a subway protective airtight partition door leaf according to claim 6, characterized in that: The lower side of the support block can abut against the connecting rod to prevent the latch from being pulled out of the bushing.

8. The hydraulic fixing device for subway protective airtight partition door leaf according to claim 6 is characterized in that: The upper side of the support block is provided with a groove, and when the support block supports the connecting rod, the lower side of the connecting rod is embedded in the groove.

9. The hydraulic fixing device for subway protective airtight partition door leaf according to claim 1 is characterized in that: The base comprises a bottom plate and a limiting plate, wherein the bottom plate is used for being installed on the ground, the limiting plate is vertically fixedly connected to the upper side of the bottom plate, and one side of the limiting plate is provided with a limiting surface which can abut against the lower end of the latch.

10. The hydraulic fixing device for subway protective airtight partition door leaf according to claim 1, characterized in that: The lower end of the latch is provided with a chamfer along the circumferential direction.

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